Hydraulic pump structure with convenient piston dismounting

Abstract

The utility model discloses a kind of hydraulic pump structures of convenient piston dismounting, including cylinder body, the piston rod is placed in one side of cylinder body, the inner wall of one side of the piston rod surface is slidably connected with cylinder body, the outer cover plate is arranged in one side of cylinder body, the other side of piston rod is penetrated to the outside of outer cover plate and is slidably connected with outer cover plate, annular mounting groove is set up in the outer side position of one end of outer cover plate.The hydraulic pump structure of convenient piston dismounting, through the multiple clamping structure of design annular mounting plate and annular mounting groove, annular clamping plate and annular clamping groove and annular fixing plate and annular fixing groove, cooperate the thread connection of fixed bolt one and fixed bolt two, greatly simplify the installation and dismounting process between outer cover plate and cylinder body, also facilitate the dismounting of piston rod, this design not only reduces operation step, also reduces the risk of connecting component damage, to significantly improve the convenience of installation and dismounting.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pump structure technology, specifically a hydraulic pump structure that facilitates piston assembly and disassembly. Background Technology

[0002] In hydraulic systems, the piston is a key transmission and power conversion component, and its performance stability and sealing are crucial to the overall operation of the hydraulic system.

[0003] Existing hydraulic pump structures typically use bolts to connect the outer cover plate to the cylinder body. While this connection method is simple and easy to implement, it requires removing the outer cover plate from the cylinder body before installing the piston. However, the connection structure between the outer cover plate and the cylinder body is complex, making disassembly and installation cumbersome and prone to damaging the connecting components, thus increasing installation difficulty and maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic pump structure that facilitates piston disassembly and assembly, in order to solve the problem mentioned in the background art that the existing hydraulic pump structure usually uses bolts to fix the outer cover plate to the cylinder body. Although this connection method is simple and easy to implement, when installing the piston, the outer cover plate needs to be removed from the cylinder body first so that the piston can be put into the cylinder body. However, due to the complex connection structure between the outer cover plate and the cylinder body, the disassembly and installation process is cumbersome and the connecting parts are easily damaged, which increases the difficulty of installation and maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic pump structure for easy piston assembly and disassembly, comprising a cylinder body, a piston rod placed on one side of the cylinder body, one side of the piston rod surface being slidably connected to the inner wall of the cylinder body, an outer cover plate provided on one side of the cylinder body, the other side of the piston rod penetrating to the outside of the outer cover plate and slidably connected to the outer cover plate, an annular mounting groove being formed at the outer side of one end of the outer cover plate, an annular mounting plate being fixedly connected at the outer side of one side of the cylinder body, one side of the annular mounting plate penetrating into the interior of the annular mounting groove and... The outer cover plate has an annular groove on its inner side at one end, and an annular retaining plate is fixedly connected to the inner side of one end of the cylinder body. One side of the annular retaining plate extends into the annular groove and engages with it. An outer annular plate is fixedly connected to one side of the outer surface of the cylinder body. An annular fixing groove is provided on one side of the outer annular plate. An annular strip is fixedly connected to one end of the outer side of the outer cover plate. An annular fixing plate is fixedly connected to one side of the annular strip. One side of the annular fixing plate extends into the annular fixing groove and engages with it.

[0006] Compared with the prior art, the beneficial effects of this utility model are:

[0007] This hydraulic pump structure, which facilitates piston assembly and disassembly, employs a multi-interlocking structure consisting of an annular mounting plate and annular mounting groove, an annular clamping plate and annular clamping groove, and an annular fixing plate and annular fixing groove. Combined with the threaded connections of fixing bolts one and two, this significantly simplifies the installation and disassembly process between the outer cover plate and the cylinder body, and also facilitates the assembly and disassembly of the piston rod. This design not only reduces the number of operating steps but also lowers the risk of damage to connecting components, thus significantly improving the ease of installation and disassembly. This design makes the connection between the outer cover plate and the cylinder body more robust and reliable. This multi-layered protection effectively prevents oil leakage and other potential problems caused by loose connections, ensuring the stable operation of the hydraulic pump piston under high pressure and high speed operating environments. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model;

[0009] Figure 2 This utility model Figure 1 A magnified view of part A in the diagram;

[0010] Figure 3 This utility model Figure 1 A magnified view of part B in the diagram;

[0011] Figure 4 This is a three-dimensional structural view of the annular mounting plate of this utility model.

[0012] In the diagram: 1. Cylinder body; 2. Piston rod; 3. Outer cover plate; 4. Annular mounting groove; 5. Annular mounting plate; 6. Sealing strip one; 7. Sealing strip two; 8. Annular groove; 9. Annular retaining plate; 10. Sealing ring; 11. Fixing bolt one; 12. Outer annular plate; 13. Annular fixing groove; 14. Annular strip; 15. Annular fixing plate; 16. Fixing bolt two; 17. Sealing strip three; 18. Sealing strip four. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1-4This utility model provides a technical solution: a hydraulic pump structure for easy piston assembly and disassembly, including a cylinder body 1, a piston rod 2 placed on one side inside the cylinder body 1, one side of the surface of the piston rod 2 being slidably connected to the inner wall of the cylinder body 1, an outer cover plate 3 provided on one side of the cylinder body 1, the other side of the piston rod 2 extending through to the outside of the outer cover plate 3 and being slidably connected to the outer cover plate 3, an annular mounting groove 4 being formed on the outer side of one end of the outer cover plate 3, an annular mounting plate 5 being fixedly connected to the outer side of one side of the cylinder body 1, one side of the annular mounting plate 5 extending through to the inside of the annular mounting groove 4 and engaging with the annular mounting groove 4. Next, an annular groove 8 is provided on the inner side of one end of the outer cover plate 3, and an annular plate 9 is fixedly connected to the inner side of one end of the cylinder body 1. One side of the annular plate 9 extends into the interior of the annular groove 8 and engages with the annular groove 8. An outer annular plate 12 is fixedly connected to one side of the outer surface of the cylinder body 1. An annular fixing groove 13 is provided on one side of the outer annular plate 12. An annular strip 14 is fixedly connected to one end of the outer side of the outer cover plate 3. An annular fixing plate 15 is fixedly connected to one side of the annular strip 14. One side of the annular fixing plate 15 extends into the interior of the annular fixing groove 13 and engages with the annular fixing groove 13.

[0015] Six fixing bolts 11 are threadedly connected to the center of the outer surface of the outer cover plate 3. The bottom of the fixing bolts 11 penetrates into the interior of the annular retaining plate 9 and is threadedly connected to the annular retaining plate 9. Six fixing bolts 26 are threadedly connected to one side of the outer surface of the outer annular plate 12. The bottom of the fixing bolts 216 penetrates into the interior of the annular retaining plate 15 and is threadedly connected to the annular retaining plate 15. This makes the connection between the outer cover plate 3 and the cylinder body 1 more secure and reliable, facilitates installation and disassembly, and improves the maintenance convenience of the hydraulic pump piston.

[0016] A sealing strip 6 is fixedly fitted at the outer end of the annular mounting plate 5 on the side away from the cylinder 1. One side of the sealing strip 6 is in close contact with the inner wall of the annular mounting groove 4. A second sealing strip 7 is fixedly fitted at the inner end of the annular mounting plate 5 on the side away from the cylinder 1. One side of the second sealing strip 7 is in close contact with the inner wall of the annular mounting groove 4. A sealing ring 10 is fixedly fitted at one end of the annular retaining plate 9. One side of the sealing ring 10 is in close contact with the inner wall of the annular retaining groove 8. This effectively improves the sealing performance of the hydraulic pump, prevents oil leakage, ensures the normal operation of the hydraulic system, and extends the service life of the equipment.

[0017] Three sealing strips 17 and two sealing strips 18 are fitted inside the cylinder body 1 on one side of the piston rod 2 surface, with the two sealing strips 18 located between the three sealing strips 17.

[0018] Working principle: First, place the piston rod 2 inside the cylinder 1, ensuring that one side of the piston rod 2 surface forms a sliding connection with the inner wall of the cylinder 1. Then, place the outer cover plate 3 on the corresponding side of the cylinder 1, so that the other side of the piston rod 2 passes through the outside of the outer cover plate 3 and forms a sliding connection with the outer cover plate 3. At this time, the annular mounting groove 4 at one end of the outer cover plate 3 corresponds to the annular mounting plate 5 on one side of the cylinder 1. One side of the annular mounting plate 5 passes through the interior of the annular mounting groove 4 and engages with the annular mounting groove 4. At the same time, the annular retaining groove 8 at one end of the outer cover plate 3 corresponds to the annular retaining plate 9 at one end of the cylinder 1. One side of the annular retaining plate 9 passes through the interior of the annular retaining groove 8 and engages with the annular retaining groove 8. To further enhance the connection's firmness, six fixing bolts 11 are threadedly connected to the center position of the outer surface of the outer cover plate 3. The bottom of the fixing bolts 11 passes through the interior of the annular retaining plate 9 and is threadedly connected to the annular retaining plate 9. At the same time, on the outer ring... Six fixing bolts 16 are threadedly connected to one side of the outer surface of the shaped plate 12. The bottom of the fixing bolts 16 penetrates into the interior of the annular fixing plate 15 and is threadedly connected to the annular fixing plate 15. Sealing strip 6 and sealing strip 7 are fixedly installed at the outer and inner ends of the annular mounting plate 5 away from the cylinder body 1, respectively. These two sealing strips are tightly attached to the inner wall of the annular mounting groove 4, thus forming the first seal between the outer cover plate 3 and the cylinder body 1. A sealing ring 10 is fixedly installed at one end of the annular retaining plate 9. One side of the sealing ring 10 is tightly attached to the inner wall of the annular retaining groove 8, forming the second seal, which further enhances the sealing performance of the hydraulic pump. On one side of the piston rod 2, corresponding to the interior of the cylinder body 1, three sealing strips 17 and two sealing strips 18 are fitted. These sealing strips are in close contact with the inner wall of the cylinder body 1 when the piston rod 2 reciprocates, forming a seal between the piston rod 2 and the cylinder body 1, effectively preventing oil leakage.

[0019] In summary, this hydraulic pump structure, which facilitates piston assembly and disassembly, employs a multi-interlocking structure consisting of an annular mounting plate 5 and an annular mounting groove 4, an annular retaining plate 9 and an annular retaining groove 8, and an annular fixing plate 15 and an annular fixing groove 13. Combined with the threaded connection of fixing bolt 11 and fixing bolt 16, this design greatly simplifies the installation and disassembly process between the outer cover plate 3 and the cylinder body 1, and also facilitates the assembly and disassembly of the piston rod 2. This design not only reduces the number of operating steps but also lowers the risk of damage to connecting components, thus significantly improving the ease of installation and disassembly. This design makes the connection between the outer cover plate 3 and the cylinder body 1 more robust and reliable. This multi-layered design effectively prevents oil leakage and other potential problems caused by loose connections, ensuring the stable operation of the hydraulic pump piston under high pressure and high speed operating conditions.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic pump structure for easy piston assembly and disassembly, comprising a cylinder body (1), characterized in that: A piston rod (2) is placed on one side of the cylinder (1). One side of the surface of the piston rod (2) is slidably connected to the inner wall of the cylinder (1). An outer cover plate (3) is provided on one side of the cylinder (1). The other side of the piston rod (2) extends through to the outside of the outer cover plate (3) and is slidably connected to the outer cover plate (3). An annular mounting groove (4) is provided on the outer side of one end of the outer cover plate (3). An annular mounting plate (5) is fixedly connected to the outer side of one side of the cylinder (1). One side of the annular mounting plate (5) extends through to the inside of the annular mounting groove (4) and is engaged with the annular mounting groove (4). An inner side of one end of the outer cover plate (3) is provided with... An annular groove (8) is provided. An annular plate (9) is fixedly connected to the inner side of one end of the cylinder body (1). One side of the annular plate (9) extends into the interior of the annular groove (8) and engages with the annular groove (8). An outer annular plate (12) is fixedly connected to one side of the outer surface of the cylinder body (1). An annular fixing groove (13) is provided on one side of the outer annular plate (12). An annular strip (14) is fixedly connected to one end of the outer cover plate (3). An annular fixing plate (15) is fixedly connected to one side of the annular strip (14). One side of the annular fixing plate (15) extends into the interior of the annular fixing groove (13) and engages with the annular fixing groove (13).

2. The hydraulic pump structure for convenient piston assembly and disassembly according to claim 1, characterized in that: The outer cover plate (3) has six fixing bolts (11) threadedly connected to the center of its outer surface. The bottom of the fixing bolts (11) penetrates into the interior of the annular plate (9) and is threadedly connected to the annular plate (9).

3. The hydraulic pump structure for convenient piston assembly and disassembly according to claim 1, characterized in that: Six fixing bolts (16) are threaded to one side of the outer surface of the outer annular plate (12). The bottom of the fixing bolts (16) penetrates into the interior of the annular fixing plate (15) and is threaded to the annular fixing plate (15).

4. The hydraulic pump structure for easy piston assembly and disassembly according to claim 1, characterized in that: A sealing strip (6) is fixedly mounted on the outer end of the annular mounting plate (5) away from the cylinder (1), and one side of the sealing strip (6) is in close contact with the inner wall of the annular mounting groove (4).

5. The hydraulic pump structure for easy piston assembly and disassembly according to claim 1, characterized in that: A sealing strip 2 (7) is fixedly mounted on the inner end of the annular mounting plate (5) away from the cylinder body (1), and one side of the sealing strip 2 (7) is in close contact with the inner wall of the annular mounting groove (4).

6. The hydraulic pump structure for convenient piston assembly and disassembly according to claim 1, characterized in that: A sealing ring (10) is fixedly fitted at one end of the annular plate (9), and one side of the sealing ring (10) is in close contact with the inner wall of the annular groove (8).

7. The hydraulic pump structure for convenient piston assembly and disassembly according to claim 1, characterized in that: The piston rod (2) has three sealing strips (17) and two sealing strips (18) on one side of the cylinder body (1), with the two sealing strips (18) located between the three sealing strips (17).

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