US 12,006,955 B2
Anti-loosening device and plunger pump
Chen Jiang, Shandong (CN); Xiaosong Wei, Shandong (CN); Xiaobin Li, Shandong (CN); and Haiping Cui, Shandong (CN)
Assigned to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD., Yantai (CN)
Filed by YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD., Shandong (CN)
Filed on Mar. 30, 2021, as Appl. No. 17/217,507.
Claims priority of application No. 202120223437.7 (CN), filed on Jan. 27, 2021.
Prior Publication US 2022/0235802 A1, Jul. 28, 2022
Int. Cl. F15B 15/26 (2006.01); F16D 1/093 (2006.01); F04B 53/14 (2006.01); F04B 53/22 (2006.01)
CPC F15B 15/262 (2013.01) [F04B 53/14 (2013.01); F04B 53/22 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An anti-loosening device, comprising:
a first bracket, comprising:
a first clamping part defining a first accommodating space;
a first connecting part extending in a first direction and fixedly connected to the first clamping part; and
a limiting part fixedly connected to the first clamping part via the first connecting part, wherein the limiting part protrudes from the first connecting part in a second direction perpendicular to the first direction; and
a second bracket, comprising:
a second clamping part defining a second accommodation space, wherein the second clamping part is opposite to the first clamping part in the first direction, and
a second connecting part extending in the first direction and fixedly connected to the second clamping part, and
an elastic structure connecting the first bracket and the second bracket and configured to control a relative movement of the first bracket and the second bracket in the first direction,
wherein the first clamping part is consisted of a first plate-shaped structure and a second plate-shaped structure,
the first plate-shaved structure is overlapped with the first connecting part in the first direction, and the second plate-shaped structure is located at an end of the first plate-shaped structure away from the limiting part in the second direction,
the second clamping part comprises a third plate-shaped structure, a fourth plate-shaped structure and a fifth plate-shaped structure which are connected to the third plate-shaped structure,
in the first direction, the third plate-shaped structure is overlapped with the second connecting part, and
in the second direction, the fourth plate-shaped structure is located at an end of the third plate-shaped structure close to the limiting part, and the fifth plate-shaped structure is located at an end of the third plate-shaped structure away from the limiting part.