Shock absorbing anti-fallout equipment for sucker rod
A sucker rod and detachment prevention technology, which is applied in the direction of drill pipe, drilling equipment, earthwork drilling and production, etc., can solve the problem of joint detachment and achieve the effect of reducing vibration
Inactive Publication Date: 2015-04-29
孔涛
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Problems solved by technology
[0002] The existing sucker rods often come out of the joints during use
Method used
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Embodiment Construction
[0008] see figure 1 As shown, this embodiment is composed of upper joint 1, first screw 2, center rod 3, outer cylinder 4, elastic ring 5, second screw 6, first sealing ring 7, second sealing ring 8, third screw 9 , connecting rod 10, pressure cylinder 11, third sealing ring 12, fourth sealing ring 13, fourth screw 14, connecting head 15, steel ball 16, fifth screw 17 and lower joint 18, the upper joint 1 passes through the first The screw 2 is fixed on the upper end of the central rod 3, and the lower end of the central rod 3 is inserted and fixed in the outer cylinder 4. Several elastic rings 5 are arranged in the outer cylinder 4, and a spacer 19 is arranged inside the middle section of the outer cylinder 4. The spacer 19 The second screw 6 is used to fix the outer cylinder 4, the lower part of the outer cylinder 4 is covered with the pressure cylinder 11, the outer cylinder 4 is connected with the pressure cylinder 11 by the third screw 9, and a second A sealing ring 7,...
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The invention discloses shock absorbing anti-fallout equipment for a sucker rod. The top joint of the shock absorbing anti-fallout equipment is fixedly arranged at the upper end of a central rod by virtue of a first screw; the lower end of the central rod is inserted into an outer barrel and is fixed; a plurality of elastic rings are arranged in the outer barrel; a spacer bush is arranged in the middle section of the outer barrel; the lower section of the outer barrel is sleeved with a pressure barrel; a first seal ring is arranged between the outer barrel and the pressure barrel; a connecting rod arranged in the pressure barrel in a penetrating manner; a second seal ring and a third seal ring are arranged between the connecting rod and the pressure cylinder; the joint is inserted at the lower end of the pressure cylinder; the lower joint is arranged in the joint in a penetrating manner; steel balls are placed in a first arc-shaped groove of the lower joint and a second arc-shaped groove of the joint; a steel ball putting screw hole is formed at the connector relative to the second arc-shaped groove to block a fifth screw, and the lower joint can freely rotate in the connector without falling out. Vibration of the sucker rod is alleviated as the elastic rings are arranged in the outer barrel. The lower joint is connected with the connector by virtue of three steel balls, so that the sucker rod connected with the lower joint can freely rotate without being falling out of the connector.
Description
technical field [0001] The invention relates to a shock-absorbing and anti-off device for sucker rods used in oil fields. Background technique [0002] When the existing sucker rod is in use, it often happens that it comes out of the connecting head. Contents of the invention [0003] The object of the present invention is to provide a sucker rod shock absorber used in oil fields. [0004] The present invention consists of an upper joint, a first screw, a central rod, an outer cylinder, an elastic ring, a second screw, a first sealing ring, a second sealing ring, a third screw, a connecting rod, a pressure cylinder, a third sealing ring, a Four sealing rings, the fourth screw, connecting head, steel ball, the fifth screw and the lower joint, the upper joint is fixed on the upper end of the central rod by the first screw, the lower end of the central rod is inserted and fixed in the outer cylinder, and the outer cylinder is provided with several an elastic ring, a spacer ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21B17/07
CPCE21B17/073
Inventor 寇君蒲名凯谢洪星杨慧勇石海涛
Owner 孔涛