An adjustable horse head hair braid anti-jumping device

By designing an adjustable donkey-head braid anti-slip device, which combines a gate-shaped protective frame and a movable locking block, the problems of low efficiency and poor adaptability of the existing fixing methods are solved, and the stable operation of the oil pumping unit equipment with obvious anti-slip effect and wide applicability is achieved.

CN224396459UActive Publication Date: 2026-06-23TAIZHOU YOUHENG OIL & GAS ENG SERVICE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU YOUHENG OIL & GAS ENG SERVICE CO LTD
Filing Date
2025-07-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing anti-slip device for oil pumping units has problems such as low efficiency of the pin fixing method, incompatibility of fixed frame length with multiple models, and reduced work efficiency due to disassembly.

Method used

An adjustable anti-jump device for donkey head braids is designed. The adjustable anti-jump device includes a fixed component and a movable component. It uses a gate-shaped protective frame and a movable locking block. The adjustable limit is achieved by adjusting the screw. It is suitable for different machine models and prevents the steel wire rope from jumping off the edge of the donkey head.

Benefits of technology

It effectively prevents equipment failure caused by the wire rope jumping off the edge of the donkey head, has a wide range of applications, is easy to install, does not affect operating efficiency, and is suitable for various pumping unit models.

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  • Figure CN224396459U_ABST
    Figure CN224396459U_ABST
Patent Text Reader

Abstract

The utility model relates to an adjustable donkey head hair plait anti -jumping groove device, contain fixed subassembly and a pair of movable subassembly, fixed subassembly contain the protection frame of door shape, the end of protection frame all is equipped with fixed clamp seat, fixed clamp seat contain the first base plate of board shape, be equipped with a pair of first side plate on the left side wall of first base plate, be equipped with a pair of guide rod on the left side wall of first base plate, be equipped with the through adjusting screw hole of first base plate, movable subassembly contain movable clamp seat and adjusting screw rod, movable clamp seat contain the second base plate of board shape, be equipped with a pair of second side plate on the right side wall of second base plate, be equipped with the through positioning screw hole and the through guide through -hole on second side plate. Since the protection frame of door shape sets up in the front of donkey head body, once appears donkey head steel wire rope unloading, also can make the steel wire rope always keep in the running of the front of donkey head when bending, effectively avoid the equipment failure caused by the steel wire rope jumping out of donkey head edge, obvious effect, strong practicality.
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Description

Technical Field

[0001] This utility model relates to the field of oil extraction tool technology, specifically to an adjustable donkey head braid anti-jump device. Background Technology

[0002] During operation, the steel wire rope, also known as the "donkey head braid," of a pumping unit needs to reciprocate up and down around the central pivot point. When the donkey head descends, if the downhole rod string encounters obstruction, the steel wire rope may become unloaded. When the donkey head ascends, a severely bent steel wire rope may jump off the edge of the donkey head, causing equipment failure and affecting the normal operation of the pumping unit.

[0003] In the prior art, such as the "anti-jumping device for donkey head braid of oil pumping unit" disclosed in patent CN214997518U, the anti-jumping function is achieved by using a pin and a frame. However, it has the following drawbacks: the installation and disassembly of the pin fixing method depends on manual operation, which is inefficient; the frame length is fixed and it can only be used with fixed models of oil pumping units; the device needs to be disassembled when replacing the braid, which affects the efficiency of operation.

[0004] Therefore, it is necessary to design an adjustable donkey head braid anti-jump device. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by designing an adjustable anti-jump device for the donkey head braid, effectively preventing the steel wire rope from jumping off the edge of the donkey head and causing equipment failure. The effect is significant and the device is highly practical. The specific technical solution is as follows:

[0006] An adjustable anti-jump device for donkey head hair braids includes an adjustable anti-jump device, which comprises a fixed component and a movable component, the movable component being movably connected to the fixed component.

[0007] The fixing component includes a gate-shaped protective frame, and each end of the protective frame is provided with a fixing lock block. The fixing lock block includes a plate-shaped first base plate. A pair of parallel first side plates are provided on the left side wall of the first base plate. A pair of parallel guide rods are provided on the left side wall of the first base plate. The first base plate is provided with a through adjustment screw hole.

[0008] The movable component includes a movable locking block and an adjusting screw. The movable locking block includes a plate-shaped second base plate. A pair of parallel second side plates are provided on the right side wall of the second base plate. The second side plates are provided with a through positioning screw hole and a through guide hole. The adjusting screw passes through the positioning screw hole and the adjusting screw hole. The guide hole cooperates with the guide rod.

[0009] Preferably, the end of the protective frame is welded to the right side wall of the first substrate.

[0010] Preferably, the spacing between the first side plates and the spacing between the second side plates are adapted to the thickness of the edge clamps of the donkey head.

[0011] Preferably, the first side plate is arranged in a direction perpendicular to the first substrate, and the second side plate is arranged in a direction perpendicular to the second substrate.

[0012] Preferably, the protective frame includes a pair of outer sleeves and a pair of inner sleeves, with an adjusting sleeve between the outer sleeves and the inner sleeves, and a crossbar between the outer ends of the inner sleeves.

[0013] Compared with the closest existing technology, the technical solution provided by this utility model has the following beneficial effects:

[0014] 1. This utility model provides an adjustable anti-jump device for donkey head braids. Because the gate-shaped protective frame is set in front of the donkey head body, once the donkey head wire rope is unloaded, the wire rope can always stay in front of the donkey head when bending, effectively preventing the wire rope from jumping out of the edge of the donkey head and causing equipment failure. The effect is obvious and the practicality is strong.

[0015] 2. This utility model ensures that the braid remains in front of the donkey's head in any state, preventing "jumping out"; during braid replacement, the device does not need to be disassembled and is not affected by the operation; the adjusting screws on both sides make it easy to install and disassemble, and it can be reused; in addition, the protective rod can be extended and shortened, making it suitable for two machine models and with a wide range of applications; in production applications, this device is simple to operate, effectively prevents "jumping out", is highly practical, and easy to promote. Attached Figure Description

[0016] Figure 1 This is a schematic diagram illustrating the use of the adjustable anti-jump device for the donkey head braid of the oil pumping unit according to this utility model.

[0017] Figure 2 for Figure 1 A detailed magnified view of region A in the diagram;

[0018] Figure 3 This is a three-dimensional structural diagram of the adjustable anti-jump device for the donkey head braid of the oil pumping unit according to this utility model.

[0019] Figure 4 for Figure 3 An exploded three-dimensional structural diagram of the anti-slip-out device in the middle;

[0020] Figure 5 for Figure 4 A magnified view of the details of region B in the diagram;

[0021] Figure 6 for Figure 4 A magnified view of the details of region C in the diagram;

[0022] Figure 7 This is an operational schematic diagram of the adjustable anti-jump device for the donkey head braid of the oil pumping unit according to this utility model. At this time, the anti-jump device has not yet clamped the donkey head of the oil pumping unit.

[0023] Figure 8 This is an operational schematic diagram of the adjustable anti-jump device for the donkey head braid of the oil pumping unit according to this utility model. At this time, the anti-jump device clamps the donkey head of the oil pumping unit.

[0024] Figure 9 This is a three-dimensional structural schematic diagram of another embodiment of the adjustable anti-jump device for the donkey head braid of the oil pumping unit of this utility model.

[0025] The markings in the diagram are explained as follows: 10, Adjustable anti-jump device for the donkey head braid of the oil pumping unit; 20, Fixing component; 21, Protective frame; 211, Outer sleeve; 212, Inner sleeve; 213, Adjusting sleeve; 214, Crossbar; 22, Fixing lock block; 221, First base plate; 222, First side plate; 223, Adjusting screw hole; 23, Guide rod; 30, Movable component; 31, Movable lock block; 311, Second base plate; 312, Second side plate; 313, Positioning screw hole; 314, Guide through hole; 32, Adjusting screw; 410, Edge clamping plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0028] like Figures 1 to 6 As shown, the adjustable anti-jump device 10 for the oil pumping unit includes a fixed component 20 and a pair of movable components 30, which are movably connected to the fixed component 20.

[0029] The fixing assembly 20 includes a U-shaped protective frame 21, with fixing blocks 22 at each end of the protective frame 21. Each fixing block 22 includes a plate-shaped first base plate 221. A pair of parallel first side plates 222 are provided on the left side wall of the first base plate 221, and a pair of parallel guide rods 23 are also provided on the left side wall. A through-hole adjustment screw hole 223 is provided on the first base plate 221. The U-shaped protective frame 21, positioned in front of the donkey head, restricts the wire rope from bending and keeps it in front of the donkey head, fundamentally preventing equipment malfunctions caused by the wire rope jumping off the edge of the donkey head and solving the problem of rope slippage.

[0030] The movable component 30 includes a movable locking block 31 and an adjusting screw 32. The movable locking block 31 includes a plate-shaped second base plate 311. A pair of parallel second side plates 312 are provided on the right side wall of the second base plate 311. The second side plates 312 have through-hole positioning screw holes 313 and through-hole guide holes 314. The adjusting screw 32 passes through the positioning screw hole 313 and the adjusting screw hole 313. The guide hole 314 cooperates with the guide rod 23. The movable locking block 31 of this movable component can lock the edge clamping plate 410 of the donkey head, and is tightened by the thread of the adjusting screw 32 onto the movable locking block 31. The movable component has the following advantages: easy installation; tightening the adjusting screw secures the movable locking block; the adjustable screw can be used with an electric wrench for installation or removal; it is compatible with both Type 10 and Type 12 oil pumping units, facilitating widespread adoption; when changing the braid, the device does not need to be disassembled, and is not affected by the operation; it is easy to disassemble and can be reused.

[0031] It should be noted that the end of the protective frame 21 is welded to the right side wall of the first substrate 221. The first side plate 222 is perpendicular to the first substrate 221, and the second side plate 312 is perpendicular to the second substrate 311. This welding connection prevents the protective frame from loosening or falling off due to vibration or stress during pumping unit operation, ensuring stable and reliable limiting of the wire rope and extending the service life of the device.

[0032] Furthermore, the spacing of the first side plate 222 and the spacing of the second side plate 312 are adapted to the thickness of the edge clamping plate 410 of the donkey head. Matching the side plate spacing with the thickness of the edge clamping plate of the donkey head allows the fixed locking block and the movable locking block to fit tightly against the surface of the clamping plate, ensuring that the device can firmly clamp the donkey head.

[0033] The working principle of the adjustable anti-jump device 10 for the donkey head braid of this utility model oil pump is as follows:

[0034] First, the device is placed on the donkey head body 40, so that the fixing block 22 initially locks the outer edge of the donkey head body 40, and the movable locking block 31 initially locks the inner edge of the large hole 411 of the donkey head body 40.

[0035] Then, rotate the adjusting screw 32, and use the cooperation between the adjusting screw 32 and the positioning screw hole 313 to make the movable locking block 31 move toward the direction F where the fixed locking block 22 is located, until the movable locking block 31 is completely locked. Thus, the adjustable anti-jump device 10 of the oil pumping unit's donkey head braid is fixed to the donkey head body 40.

[0036] Since the gate-shaped protective frame 21 is set in front of the donkey head body 40, once the donkey head wire rope is unloaded, the wire rope can always stay in front of the donkey head when bending, effectively preventing the wire rope from jumping out of the edge of the donkey head and causing equipment failure. The effect is obvious and the practicality is strong. Specific Implementation Example 2

[0038] like Figure 9 The image shows another embodiment of the adjustable anti-jump device for the donkey head braid of the present invention. In this embodiment, the protective frame 21 includes a pair of outer sleeves 211 and a pair of inner sleeves 212. An adjusting sleeve 213 is provided between the outer sleeves 211 and the inner sleeves 212, and a crossbar 214 is provided between the outer ends of the inner sleeves 212.

[0039] By using the adjusting sleeve 213, the user can adjust the extension of the inner sleeve 212 within the outer sleeve 211, thereby changing the distance between the crossbar 214 and the donkey head body 40, making the device more versatile.

[0040] This utility model effectively solves the problem of wire rope slippage by using the limiting effect of the U-shaped protective frame combined with the adjustable clamping structure of the movable components. It is also easy to install, highly adaptable, and has high practical value and promotional significance. The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify or make equivalent substitutions to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model are within the protection scope of the pending claims of this utility model.

Claims

1. An adjustable anti-jump device for donkey head hair braids, comprising an adjustable anti-jump device (10), characterized in that: The adjustable anti-slip device (10) includes a fixed component (20) and a movable component (30), wherein the movable component (30) is movably connected to the fixed component (20); The fixing component (20) includes a gate-shaped protective frame (21), and each end of the protective frame (21) is provided with a fixing block (22). The fixing block (22) includes a plate-shaped first base plate (221). A pair of parallel first side plates (222) are provided on the left side wall of the first base plate (221). A pair of parallel guide rods (23) are provided on the left side wall of the first base plate (221). A through adjusting screw hole (223) is provided on the first base plate (221). The movable component (30) includes a movable locking block (31) and an adjusting screw (32). The movable locking block (31) includes a plate-shaped second base plate (311). A pair of parallel second side plates (312) are provided on the right side wall of the second base plate (311). The second side plate (312) is provided with a through positioning screw hole (313) and a through guide hole (314). The adjusting screw (32) passes through the positioning screw hole (313) and the adjusting screw hole (223). The guide hole (314) cooperates with the guide rod (23).

2. The adjustable donkey head braid anti-jump device according to claim 1, characterized in that: The end of the protective frame (21) is welded to the right side wall of the first substrate (221).

3. The adjustable donkey head braid anti-jump device according to claim 1, characterized in that: The spacing of the first side plate (222) and the spacing of the second side plate (312) are adapted to the thickness of the edge clamp (410) of the donkey head.

4. The adjustable donkey head braid anti-jump device according to claim 1, characterized in that: The first side plate (222) is perpendicular to the first substrate (221), and the second side plate (312) is perpendicular to the second substrate (311).

5. The adjustable donkey head braid anti-jump device according to claim 1, characterized in that: The protective frame (21) includes a pair of outer sleeves (211) and a pair of inner sleeves (212). An adjusting sleeve (213) is provided between the outer sleeves (211) and the inner sleeves (212). A crossbar (214) is provided between the outer ends of the inner sleeves (212).