Hydraulic pump cover plate with sealing mechanism

Abstract

The utility model relates to hydraulic pump technical field discloses a hydraulic pump cover plate with sealing mechanism, including end cover, end cover bottom is provided with washer, end cover outer wall is fixedly connected with the limiting sheet, the right side wall of limiting sheet is equipped with square hole, the inside of square hole is provided with the roller, the left side wall of limiting sheet is provided with the compression strip, and the side wall of compression strip is fixedly connected with rubber strip, the utility model discloses when installing end cover in hydraulic pump, uses bolt cooperation mounting hole to lock, and then can tighten locking bolt to make the compression strip close to the washer outside of end cover and pump body junction, then the compression strip cooperation rubber strip is compressed to the outside of junction, and the pasting piece is pasted, thereby sealing the outside of end cover and pump body junction with the compression strip and pasting piece, can reduce the outside dust or water to enter between junction, and then reduce the speed of washer aging, reduce the influence of dust and water to washer, improve the sealing of end cover and pump body junction.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pump technology, specifically to a hydraulic pump cover plate with a sealing mechanism. Background Technology

[0002] A hydraulic pump is a key component in a hydraulic system, used to convert mechanical energy into the pressure energy of a fluid. It draws in fluid and pressurizes it into the system, driving hydraulic cylinders or motors to achieve mechanical motion. Common types of hydraulic pumps include gear pumps, vane pumps, and piston pumps, suitable for various industrial equipment and construction machinery. A cover plate is typically used at the end of the hydraulic pump to seal the pump casing, and the cover plate is usually the same size as the external dimensions of the hydraulic pump.

[0003] Existing hydraulic pump cover plates are typically end caps at the end of the hydraulic pump, bolted to the pump body housing. A rubber gasket is usually placed between the cover plate and the pump body housing, and the gasket's size is the same as or slightly smaller than the cover plate. However, during long-term use of the hydraulic pump, external water and dust can easily come into contact with the rubber gasket, causing it to be corroded and age rapidly. This hinders the sealing between the cover plate and the pump body housing and is detrimental to the long-term use of the hydraulic pump. Therefore, we propose a hydraulic pump cover plate with a sealing mechanism. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic pump cover plate with a sealing mechanism to solve the problem mentioned in the background art that water and dust can easily come into contact with the rubber gasket, causing it to age rapidly.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic pump cover plate with a sealing mechanism, including an end cover, a gasket at the bottom of the end cover, a limiting piece fixedly connected to the outer wall of the end cover, a square hole on the right side wall of the limiting piece, a roller inside the square hole, a pressing strip on the left side wall of the limiting piece, and a rubber strip fixedly connected to the side wall of the pressing strip.

[0006] Preferably, the side wall of the clamping strip is provided with a locking bolt, and the side wall of the clamping strip has a mating hole that matches the locking bolt.

[0007] Preferably, the outer wall of the locking bolt is provided with a raised ring, and the locking bolt is fitted into the side wall of the limiting piece.

[0008] Preferably, the front sidewall of the limiting piece is provided with a sliding hole that matches the roller, and a small spring is provided inside the sliding hole.

[0009] Preferably, the front end of the pressing strip is provided with an adhesive piece, which has an arc-shaped structure.

[0010] Preferably, the fitting piece is fitted to the side wall of the end cap, and the top of the end cap is provided with a protrusion.

[0011] Preferably, the top of the end cap has multiple mounting holes, and the clamping strip is fitted to the side wall of the end cap.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model involves installing the end cover onto the hydraulic pump using bolts and mounting holes for locking. The locking bolts are then tightened to bring the clamping strip close to the outside of the gasket at the connection between the end cover and the pump body. The clamping strip, along with a rubber strip, presses against the outside of the connection, and the bonding piece is then attached. This seals the outside of the connection between the end cover and the pump body using the clamping strip and the bonding piece, reducing the entry of external dust or water into the connection, thus slowing down the aging of the gasket, minimizing the impact of dust and water on the gasket, and improving the sealing performance of the connection between the end cover and the pump body.

[0014] 2. When installing the end cover, the limiting piece is engaged with the outer wall of the pump body. When the end cover is pushed to achieve the assembly of the pump body, the roller rolls on the outer wall of the pump body, thereby limiting the end cover. This allows for convenient positioning of the end cover when it is assembled with the pump body, eliminating the hassle of frequently fine-tuning the end cover by aligning the mounting hole with the pump body, and facilitating the installation of the end cover. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the end cap structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the separation structure of the clamping strip and locking bolt of this utility model.

[0018] In the diagram: 100, end cap; 101, protrusion; 102, washer; 103, mounting hole; 110, limiting piece; 111, square hole; 112, roller; 113, sliding hole; 120, clamping strip; 121, rubber strip; 122, locking bolt; 123, convex ring; 130, bonding piece. Detailed Implementation

[0019] 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.

[0020] Example

[0021] Please see Figures 1-3 The figure shows a hydraulic pump cover plate with a sealing mechanism, including an end cover 100. The end cover 100 is located at the end of the hydraulic pump and its size is the same as the cross-sectional size of the hydraulic pump housing. The outer wall of the connection between the hydraulic pump and the end cover 100 is smooth and will not obstruct the sliding of the limiting piece 110. A washer 102 is provided at the bottom of the end cover 100. The limiting piece 110 is tightly welded to the outer wall of the end cover 100. A square hole 111 is opened on the right side wall of the limiting piece 110. A roller 112 is provided inside the square hole 111. A pressing strip 120 is provided on the left side wall of the limiting piece 110. A rubber strip 121 is fixed to the side wall of the pressing strip 120.

[0022] Specifically, the side wall of the clamping strip 120 is provided with a locking bolt 122, and the side wall of the clamping strip 120 is provided with a mating hole that matches the locking bolt 122.

[0023] Furthermore, the outer wall of the locking bolt 122 is provided with a convex ring 123 that mates with the mating hole. The locking bolt 122 mates with the side wall of the limiting plate 110. The locking bolt 122 rotates inside the mating hole using the convex ring 123. Moreover, the limiting plate 110 has a thread inside that mates with the locking bolt 122.

[0024] Furthermore, the front side wall of the limiting piece 110 is provided with a sliding hole 113 that cooperates with the roller 112. The side wall of the roller 112 is provided with a rotating shaft that cooperates with the inside of the sliding hole 113. The roller 112 can slide up and down with the sliding hole 113 by means of the rotating shaft. A small spring is provided inside the sliding hole 113. A stop bar that cooperates with the small spring can be provided on the outer wall of the sliding hole 113 of the limiting piece 110 to limit the small spring and prevent the small spring from popping out when it extends or retracts.

[0025] It is worth noting that the front end of the pressing strip 120 is provided with an adhesive piece 130. The adhesive piece 130 is made of two rubber pieces that are attached to each other on the left and right sides. It can be torn apart from the middle outwards. The adhesive part is attached with common small Velcro. The adhesive piece 130 has an arc-shaped structure.

[0026] It is worth noting that the fitting piece 130 is fitted to the side wall of the end cap 100, and the top of the end cap 100 is provided with a protrusion 101.

[0027] In addition, the top of the end cover 100 is provided with multiple mounting holes 103, which can be used to install the end cover 100 and the housing of the hydraulic pump by using bolts to fit the mounting holes 103. The clamping strip 120 fits into the side wall of the end cover 100.

[0028] Working principle: When the end cover 100 is installed on the hydraulic pump, it is locked using bolts that mate with the mounting holes 103. Then, the locking bolts 122 are tightened, bringing the clamping strip 120 close to the outside of the gasket 102 at the connection between the end cover 100 and the pump body. The clamping strip 120, together with the rubber strip 121, presses against the outside of the connection, and the bonding piece 130 is then applied. This seals the outside of the connection between the end cover 100 and the pump body using the clamping strip 120 and the bonding piece 130, reducing the ingress of external dust or water into the connection and thus slowing down the aging of the gasket 102. This reduces the impact of dust and water on the gasket 102 and improves the sealing performance of the connection between the end cover 100 and the pump body. When installing the end cover 100, the limiting piece 110 fits against the outer wall of the pump body. When pushing the end cover 100 to achieve the combined installation with the pump body, the roller 112 rolls on the outer wall of the pump body, thereby limiting the end cover 100. This allows the end cover 100 to be conveniently positioned when assembled with the pump body, eliminating the trouble of frequently fine-tuning the end cover 100 by aligning the mounting hole 103 with the pump body, and facilitating the installation of the end cover 100.

[0029] 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.

[0030] 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 cover plate with a sealing mechanism, comprising an end cap (100), characterized in that: A washer (102) is provided at the bottom of the end cap (100). A limiting piece (110) is fixedly connected to the outer wall of the end cap (100). A square hole (111) is provided on the right side wall of the limiting piece (110). A roller (112) is provided inside the square hole (111). A pressing strip (120) is provided on the left side wall of the limiting piece (110). A rubber strip (121) is fixedly connected to the side wall of the pressing strip (120).

2. A hydraulic pump cover plate with a sealing mechanism according to claim 1, characterized in that: The side wall of the clamping strip (120) is provided with a locking bolt (122), and the side wall of the clamping strip (120) is provided with a mating hole that matches the locking bolt (122).

3. A hydraulic pump cover plate with a sealing mechanism according to claim 2, characterized in that: The outer wall of the locking bolt (122) is provided with a protruding ring (123), and the locking bolt (122) is fitted to the side wall of the limiting piece (110).

4. A hydraulic pump cover plate with a sealing mechanism according to claim 1, characterized in that: The front side wall of the limiting piece (110) is provided with a sliding hole (113) that matches the roller (112), and a small spring is provided inside the sliding hole (113).

5. A hydraulic pump cover plate with a sealing mechanism according to claim 1, characterized in that: The front end of the pressing strip (120) is provided with an adhesive piece (130), which has an arc-shaped structure.

6. A hydraulic pump cover plate with a sealing mechanism according to claim 5, characterized in that: The fitting piece (130) is fitted to the side wall of the end cap (100), and the top of the end cap (100) is provided with a protrusion (101).

7. A hydraulic pump cover plate with a sealing mechanism according to claim 1, characterized in that: The end cap (100) has multiple mounting holes (103) on its top, and the clamping strip (120) is fitted to the side wall of the end cap (100).

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