Automatic compensation anti-eccentric-wear pumping unit packing box

Abstract

The utility model discloses an automatic compensation anti-eccentric-wear pumping unit packing box, and belongs to the field of packing boxes. The automatic compensation anti-eccentric-wear pumping unit packing box comprises a first lower fixing piece, a first connecting shaft is arranged on the first lower fixing piece, the automatic compensation anti-eccentric-wear pumping unit packing box further comprises a first rotating bearing, the first rotating bearing is arranged at one end of the first connecting shaft, a first fixing block is arranged at the movable end of the first rotating bearing, and a second fixing block is arranged at the movable end of the first rotating bearing. A pneumatic telescopic rod is arranged on the first fixing block. The packing box solves the problems that after an existing packing box is used for a long time, a pipeline can vibrate in the conveying process, the packing box is originally tightly attached to the pipeline, a gap can be generated between the packing box and the pipeline due to vibration generated by the pipeline, and the packing box cannot play a sealing role.

Description

Technical Field

[0001] The utility model relates to the field of packing boxes, in particular to an automatic compensation and anti-eccentric wear packing box for an oil pumping unit. Background Art

[0002] Packing is also called sealing filler, which is usually woven from softer threads. Usually, the cross-sectional area is square, rectangular or round strips filled in the sealing cavity, but the traditional thread braided material itself is easy to corrode as filler;

[0003] A Chinese patent with publication number CN206091925U discloses an anti-eccentric wear sealing pressure automatic tracking pumping unit bare rod packing box. It mainly solves the problem that the existing packing needs to be taken out and then filled with packing when it is worn, and the problem of serious eccentric wear of the pumping unit bare rod. The interior of the packing box is an inverted cone, and an upper pressure cap is connected to the outer side of the upper part of the packing box, and an upper pressure cap nut is connected to the top of the upper pressure cap; a spring is arranged inside the packing pressure block; a universal joint ball is connected to the bottom of the packing box, a universal joint ball seat is provided at the bottom of the universal joint ball seat, a lower receiving plate is provided at the bottom of the universal joint ball seat, a pressure plate is connected to the upper part of the lower receiving plate, and the pressure plate is pressed on the upper part of the universal joint ball seat. The packing box does not need to be taken out after the packing is worn, and can be filled directly, which saves labor, and the eccentric adjustment device has a large adjustable range and good eccentric adjustment effect.

[0004] After the packing box of the above patent has been used for a long time, the pipeline may vibrate during transportation. Originally, the packing box and the pipeline are tightly fitted, but the vibration generated by the pipeline may cause a gap between the packing box and the pipeline, resulting in the packing box being unable to perform a sealing function. Utility Model Content

[0005] The utility model aims to provide an automatic compensation and anti-eccentric wear oil pump packing box, by providing a first connecting shaft on a first lower fixing plate, and a first rotating bearing on one end of the first connecting shaft, a first fixing block on the movable end of the first rotating bearing, and a pneumatic telescopic rod on the first fixing block, a second fixing block on the end of the pneumatic telescopic rod away from the first fixing block, a second rotating bearing on the second fixing block, a second connecting shaft on the second rotating bearing, a second upper fixing plate on the upper end of the second connecting shaft, and an airbag on the inner wall of the second upper fixing plate, when the pipeline transportation generates vibration, the pipeline position is offset and the airbag will wrap the pipeline firmly, and then the pneumatic telescopic rod will be retracted and released following the vibration of the pipeline, so that the airbag will change its position following the movement of the pipeline position, and maintain good sealing for a long time, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic compensation and anti-eccentric wear oil pump packing box, comprising a first lower fixed plate, a first connecting shaft is arranged on the first lower fixed plate, and also comprising a first rotating bearing, the first rotating bearing is arranged at one end of the first connecting shaft, a first fixed block is arranged on the movable end of the first rotating bearing, a pneumatic telescopic rod is arranged on the first fixed block, a second fixed block is arranged on the movable end of the pneumatic telescopic rod, a second rotating bearing is arranged on the second fixed block, and a second connecting shaft is arranged on the movable end of the second rotating bearing.

[0007] Preferably, a second upper fixing plate is disposed at the upper end of the second connecting shaft, and the second upper fixing plate and the second connecting shaft are integrally arranged.

[0008] Preferably, a second lower fixing plate is provided at the lower end of the second connecting shaft.

[0009] Preferably, an airbag is provided between the second upper fixing plate and the second lower fixing plate.

[0010] Preferably, a valve core is provided on the airbag.

[0011] Preferably, connecting plates are provided on both sides of the first lower fixing plate, and the connecting plates and the first lower fixing plate are integrally provided.

[0012] Preferably, bolt holes are provided on the connecting piece.

[0013] Preferably, a first upper fixing plate is arranged on the first lower fixing plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model comprises a first connecting shaft arranged on a first lower fixing plate, a first rotating bearing arranged on one end of the first connecting shaft, a first fixing block arranged on a movable end of the first rotating bearing, and a pneumatic telescopic rod arranged on the first fixing block, a second fixing block arranged on an end of the pneumatic telescopic rod away from the first fixing block, a second rotating bearing arranged on the second fixing block, a second connecting shaft arranged on the second rotating bearing, a second upper fixing plate arranged on the upper end of the second connecting shaft, and an airbag arranged on the inner wall of the second upper fixing plate. When the pipeline transportation generates vibration, the pipeline position shifts and the airbag will wrap the pipeline firmly, and then the pneumatic telescopic rod will be retracted and released following the vibration of the pipeline, so that the airbag will change its position following the movement of the pipeline position, thereby maintaining good sealing for a long time, and effectively avoiding the problem that the pipeline may vibrate during transportation after the existing packing box has been used for a long time, and the packing box and the pipeline are originally tightly fitted, but the vibration generated by the pipeline may cause a gap between the packing box and the pipeline, resulting in the packing box being unable to play a sealing role. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall top view structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall main structure of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the structure of a pneumatic telescopic rod.

[0020] In the figure: 1. first lower fixing plate; 2. connecting plate; 3. first connecting shaft; 4. first rotating bearing; 5. first fixing block; 6. pneumatic telescopic rod; 7. first upper fixing plate; 8. second fixing block; 9. second rotating bearing; 10. second connecting shaft; 11. second upper fixing plate; 12. second lower fixing plate; 13. airbag; 14. valve core; 15. bolt hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to solve the problem in the prior art that after a long period of use, the pipe may vibrate during transportation, and the packing box and the pipe are originally tightly fitted, but the vibration of the pipe may cause a gap between the packing box and the pipe, resulting in the packing box being unable to play a sealing role, this embodiment provides the following technical solutions:

[0023] The automatic compensation anti-eccentric wear oil pumping unit packing box comprises a first lower fixing plate 1, on which a first connecting shaft 3 is arranged, and also comprises a first rotating bearing 4, which is arranged at one end of the first connecting shaft 3, and a first fixing block 5 is arranged on the movable end of the first rotating bearing 4, and a pneumatic telescopic rod 6 is arranged on the first fixing block 5, and a second fixing block 8 is arranged on the movable end of the pneumatic telescopic rod 6, and a second rotating bearing 9 is arranged on the second fixing block 8, and a second connecting shaft 10 is arranged on the movable end of the second rotating bearing 9, and a first rotating bearing 9 is arranged on the movable end of the second rotating bearing 9. A second upper fixing plate 11 is provided at the upper end of the second connecting shaft 10, and the second upper fixing plate 11 and the second connecting shaft 10 are integrally provided. A second lower fixing plate 12 is provided at the lower end of the second connecting shaft 10, and an air bag 13 is provided between the second upper fixing plate 11 and the second lower fixing plate 12, and a valve core 14 is provided on the air bag 13. Connecting plates 2 are provided on both sides of the first lower fixing plate 1, and the connecting plates 2 and the first lower fixing plate 1 are integrally provided. Bolt holes 15 are opened on the connecting plates 2, and a first upper fixing plate 7 is provided on the first lower fixing plate 1;

[0024] In this embodiment, please refer to Figure 1-Figure 4 A first connecting shaft is arranged on the first lower fixed plate, and a first rotating bearing is arranged on one end of the first connecting shaft, a first fixed block is arranged on the movable end of the first rotating bearing, and a pneumatic telescopic rod is arranged on the first fixed block, a second fixed block is arranged on the end of the pneumatic telescopic rod away from the first fixed block, a second rotating bearing is arranged on the second fixed block, a second connecting shaft is arranged on the second rotating bearing, a second upper fixed plate is arranged on the upper end of the second connecting shaft, and an airbag is arranged on the inner wall of the second upper fixed plate. When the pipeline transportation generates vibration, the position of the pipeline is offset and the airbag will wrap the pipeline firmly, and then the pneumatic telescopic rod will be retracted and released following the vibration of the pipeline, so that the airbag will change its position following the movement of the pipeline position, thereby maintaining good sealing for a long time.

[0025] Working principle: A first connecting shaft is arranged on the first lower fixed plate, and a first rotating bearing is arranged on one end of the first connecting shaft, a first fixed block is arranged on the movable end of the first rotating bearing, and a pneumatic telescopic rod is arranged on the first fixed block, a second fixed block is arranged on the end of the pneumatic telescopic rod away from the first fixed block, a second rotating bearing is arranged on the second fixed block, a second connecting shaft is arranged on the second rotating bearing, a second upper fixed plate is arranged on the upper end of the second connecting shaft, and an airbag is arranged on the inner wall of the second upper fixed plate. When the pipeline transportation generates vibration, the position of the pipeline will shift and the airbag will wrap the pipeline firmly, and then the pneumatic telescopic rod will be retracted and released following the vibration of the pipeline, so that the airbag will change its position following the movement of the pipeline position, and maintain good sealing for a long time.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic compensation anti-eccentric wear oil pumping unit packing box, comprising a first lower fixing plate (1), wherein a first connecting shaft (3) is arranged on the first lower fixing plate (1); Features: The invention also comprises a first rotating bearing (4), the first rotating bearing (4) being arranged at one end of the first connecting shaft (3), a first fixing block (5) being arranged on the movable end of the first rotating bearing (4), a pneumatic telescopic rod (6) being arranged on the first fixing block (5), a second fixing block (8) being arranged on the movable end of the pneumatic telescopic rod (6), a second rotating bearing (9) being arranged on the second fixing block (8), and a second connecting shaft (10) being arranged on the movable end of the second rotating bearing (9).

2. The automatic compensation and anti-eccentric wear packing box for oil pumping units according to claim 1 is characterized by: A second upper fixing plate (11) is provided at the upper end of the second connecting shaft (10), and the second upper fixing plate (11) and the second connecting shaft (10) are integrally provided.

3. The automatic compensation and anti-eccentric wear packing box for oil pumping units according to claim 2 is characterized by: A second lower fixing plate (12) is provided at the lower end of the second connecting shaft (10).

4. The automatic compensation and anti-eccentric wear packing box for oil pumping units according to claim 3 is characterized by: An air bag (13) is provided between the second upper fixing plate (11) and the second lower fixing plate (12).

5. The automatic compensation and anti-eccentric wear packing box for oil pumping units according to claim 4 is characterized in that: The air bag (13) is provided with a valve core (14).

6. The automatic compensation and anti-eccentric wear packing box for oil pumping units according to claim 1 is characterized by: Connecting plates (2) are provided on both sides of the first lower fixing plate (1); the connecting plates (2) and the first lower fixing plate (1) are integrally provided.

7. The automatic compensation and anti-eccentric wear packing box for oil pumping units according to claim 6 is characterized by: The connecting piece (2) is provided with a bolt hole (15).

8. The automatic compensation and anti-eccentric wear packing box for oil pumping units according to claim 1 is characterized by: A first upper fixing plate (7) is arranged on the first lower fixing plate (1).

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