Size-adjustable plunger pump valve rubber press-in equipment

Abstract

The utility model relates to the technical field of mechanical design, and discloses a size-adjustable plunger pump valve rubber sheet press-in device which comprises a pressure device, an upper guide sleeve is arranged below the pressure device, a lower guide sleeve is arranged below the upper guide sleeve, a valve rubber sheet is sleeved outside the lower guide sleeve, and the valve rubber sheet is sleeved outside the pressure device. The pressure device comprises a pressing rod, a pressure machine head and a pressure machine base, a universal gradienter is fixed to the pressure machine base, a valve body is arranged below the lower guide sleeve, a positioning base structure is arranged on the pressure machine base, and a positioning clamp structure is arranged in the positioning base structure. According to the size-adjustable plunger pump valve rubber sheet press-in equipment, an original lower guide sleeve with the fixed size is replaced by the lower guide sleeve with the size capable of being automatically adjusted, a positioning clamp structure for valve bodies with different sizes is designed, the equipment can adapt to the valve bodies with different diameters, the valve rubber sheet mounting efficiency is effectively improved, the mold using scene is increased, and the cost is reduced.

Description

An adjustable plunger pump valve rubber pressing device Technical Field

[0001] This utility model relates to the field of mechanical design technology, specifically to a plunger pump valve rubber pressing device with adjustable size. Background Technology

[0002] A piston pump is a key component in a hydraulic system. It reciprocates within a cylinder to change the volume of a sealed cavity, thereby achieving oil suction and pressure. The valve body assembly, as a key component ensuring the airtightness of the equipment, is prone to failure under long-term high pressure and wear conditions, affecting the overall efficiency of the equipment. Currently, the valve body assembly consists of two parts: the valve body and the valve rubber (valve rubber). The valve rubber is a vulcanized rubber product, and its service life is significantly shorter than that of the metal valve body. After a period of use, it needs to be disassembled and replaced in time. Currently, the valve rubber is disassembled by cutting it with a cutting tool. The installation of the valve rubber is mainly divided into two methods: one is that workers use a tool with a thin wedge head to pry open the valve rubber and install it on the valve body. This method is not only time-consuming and labor-intensive, but also easily scratches the valve body and valve rubber, affecting the sealing performance and service life. The other method is that workers use a guide sleeve to press the valve rubber, and push the guide sleeve with a hydraulic device to press the valve rubber into the valve body. This method improves the installation efficiency, but the factory needs to customize the guide sleeve corresponding to the valve body size, which increases the cost. Moreover, when switching between different thicknesses and sizes of rubber, a lot of time is required for equipment adjustment, which seriously affects production efficiency.

[0003] Chinese invention patent CN108161413A designs an automatic continuous pressing device for valve rubber. It features a feeding chute and a discharge inclined support on both sides of the device. The feeding chute controls the valve bodies to slide down onto the worktable one by one. After installation, a push rod pushes the valve body onto the discharge inclined support, completing a full valve rubber installation process. Chinese invention patent CN116277199A designs a pump valve rubber disassembly and assembly tool, integrating valve rubber disassembly and assembly into a single machine. It features a drive device and a cutting device around the assembly components. The drive device precisely controls the radial movement of the cutting device, advancing the blade until it cuts the pump valve rubber. This avoids contact between the blade and the valve body, reducing damage and simplifying operation while also lowering safety risks and improving work efficiency. While these two patents represent existing valve rubber pressing devices and improve operation to some extent, with further market development, valve body shapes and sizes are becoming increasingly diverse. Factories need to customize guide sleeves of various sizes, leading to disposable guide sleeves and significantly increasing production costs. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a plunger pump valve rubber pressing device with adjustable dimensions, which solves the problems of low assembly efficiency and low mold compatibility of existing valve rubber pressing devices.

[0006] (II) Technical Solution

[0007] To achieve the goals of high assembly efficiency and high mold adaptability of the existing valve rubber pressing equipment, this utility model provides the following technical solution: A piston pump valve rubber pressing equipment with adjustable size, including a pressure device, an upper guide sleeve is provided below the pressure device, a lower guide sleeve is provided below the upper guide sleeve, a valve rubber is sleeved on the outside of the lower guide sleeve, the pressure device includes a pressure rod, a press head and a press base, a universal level is fixed on the press base, a valve body is provided below the lower guide sleeve, a positioning base structure is provided on the press base, and a positioning clamp structure is provided inside the positioning base structure;

[0008] The upper guide sleeve is fixed to the bottom of the press head, and the upper guide sleeve, lower guide sleeve and valve body are in the same vertical direction.

[0009] Preferably, the pressure device is a height-adjustable manual press, and the press head has a columnar structure.

[0010] Preferably, the upper guide sleeve has a positioning threaded hole at its upper opening, which is connected to the press head. The upper part of the inner wall is conical, and its specific shape matches the shape of the outer wall of the lower guide sleeve. The lower part is annular.

[0011] Preferably, the lower guide sleeve is composed of multiple lower guide sleeve rings spliced ​​together. The upper part of the lower guide sleeve ring is provided with a lower guide sleeve flange, and the lower part is provided with a lower guide sleeve groove. The lower guide sleeve flange and the lower guide sleeve groove are adapted to each other.

[0012] Preferably, the positioning base structure includes a positioning base, a press threaded hole, a positioning base groove, and a clamp threaded hole. The positioning base is fixed to the press base through the press threaded hole, the positioning base groove is circular, and the clamp threaded holes are symmetrically distributed on both sides of the positioning base.

[0013] Preferably, the positioning fixture structure includes a positioning fixture bolt, a positioning fixture screw, and a positioning fixture. The positioning fixture consists of two symmetrically distributed arc-shaped fixtures in a C-shape, and is connected to the positioning base structure through the positioning fixture bolt and the positioning fixture screw.

[0014] Preferably, the valve body is located inside the positioning clamp structure.

[0015] Compared with the prior art, this utility model provides a plunger pump valve rubber pressing device with adjustable size, which has the following beneficial effects:

[0016] 1. This adjustable plunger pump valve rubber pressing device uses bolted connections for the pressure device, positioning base structure, and positioning clamp structure. Appropriate instruments can be selected and matched according to the actual needs of the factory, effectively increasing the application scenarios of the equipment and reducing equipment procurement costs.

[0017] 2. This adjustable-size plunger pump valve rubber pressing device features a lower guide sleeve composed of multiple self-disassembling and assembling lower guide rings. These rings are connected by splicing, allowing the factory to flexibly select appropriate-sized lower guide rings based on the valve body dimensions. This effectively solves the problem of low mold compatibility and expands the equipment's application scenarios. Furthermore, when the lower guide sleeve fails due to wear, pressure, or other reasons, the damaged lower guide ring can be replaced individually, reducing operating costs and improving maintenance efficiency.

[0018] 3. The adjustable plunger pump valve rubber pressing device has a positioning base structure with a positioning base groove. The positioning base groove has a positioning clamp structure on the side. The valve body can be tightened by adjusting the positioning clamp structure according to the size of the lower protrusion of the valve body, so as to avoid the valve body moving during the installation process, improve the installation efficiency and reduce the risk of equipment failure.

[0019] 4. The adjustable plunger pump valve rubber pressing device has a positioning clamp structure consisting of two symmetrically distributed arc-shaped positioning clamps in a C-shape. This increases the contact area between the positioning clamps and the valve body, reduces the compressive strength between the positioning clamps and the valve body, and reduces the risk of valve body deformation. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the structure of this utility model;

[0021] Figure 2 is a schematic diagram of the positioning base and positioning clamp of this utility model;

[0022] Figure 3 is a schematic diagram of the guide sleeve of this utility model.

[0023] The components include: 1. Pressure device; 11. Pressure rod; 12. Press head; 13. Press base; 2. Upper guide sleeve; 3. Lower guide sleeve; 31. Lower guide collar; 32. Lower guide sleeve flange; 33. Lower guide sleeve groove; 4. Valve rubber; 5. Universal level; 6. Valve body; 7. Positioning base structure; 71. Positioning base; 72. Press threaded hole; 73. Positioning base groove; 74. Fixture threaded hole; 8. Positioning fixture structure; 81. Positioning fixture bolt; 82. Positioning fixture screw; 83. Positioning fixture. Detailed Implementation

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Example 1:

[0026] As shown in Figure 1, this utility model provides a piston pump valve rubber pressing device with adjustable size, including a pressure device 1, an upper guide sleeve 2 is provided below the pressure device 1, a lower guide sleeve 3 is provided below the upper guide sleeve 2, and a valve rubber 4 is sleeved on the outside of the lower guide sleeve 3. The pressure device 1 includes a pressure rod 11, a press head 12 and a press base 13. A universal level 5 is fixed on the press base 13. A valve body 6 is provided below the lower guide sleeve 3. A positioning base structure 7 is provided on the press base 13. A positioning clamp structure 8 is provided inside the positioning base structure 7.

[0027] The upper guide sleeve 2 is fixed to the bottom of the press head 12. The upper guide sleeve 2, the lower guide sleeve 3 and the valve body 6 are in the same vertical direction, which makes it easy for the press head 12 to drive the upper guide sleeve 2 to move vertically downward to the top of the lower guide sleeve 3. The factory can flexibly select the appropriate size of the lower guide sleeve ring 31 according to the size of the valve body 6 to splice the lower guide sleeve 3 of different sizes. This effectively solves the problem of low mold compatibility and increases the equipment's application scenarios.

[0028] Furthermore, the pressure device 1 is a height-adjustable manual press, and the press head 12 has a columnar structure, which facilitates the up-and-down movement of the press head 12 via the pressure rod 11.

[0029] Furthermore, the upper guide sleeve 2 has a positioning threaded hole at its upper opening, which is connected to the press head 12. The upper part of its inner wall is conical, and its shape matches the shape of the outer wall of the lower guide sleeve 3. The lower part is annular, which makes it easy to fit the upper guide sleeve 2 onto the outside of the lower guide sleeve 3.

[0030] Furthermore, the lower guide sleeve 3 is composed of multiple lower guide sleeve rings 31 spliced ​​together. The upper part of the lower guide sleeve ring 31 is provided with a lower guide sleeve flange 32, and the lower part is provided with a lower guide sleeve groove 33. The lower guide sleeve flange 32 and the lower guide sleeve groove 33 are adapted to each other, so that multiple lower guide sleeve rings 31 can be spliced ​​together sequentially through the lower guide sleeve groove 33 and the lower guide sleeve flange 32.

[0031] Example 2:

[0032] The basic structure is the same as in Example 1, with the following differences and improvements, as shown in Figure 2:

[0033] Furthermore, the positioning base structure 7 includes a positioning base 71, a press threaded hole 72, a positioning base groove 73, and a clamp threaded hole 74. The positioning base 71 is fixed to the press base 13 through the press threaded hole 72. The positioning base groove 73 is circular. The clamp threaded holes 74 are symmetrically distributed on both sides of the positioning base 71, which facilitates the positioning clamp structure 8 to be supported by the positioning base 71.

[0034] Furthermore, the positioning clamp structure 8 includes a positioning clamp bolt 81, a positioning clamp screw 82, and a positioning clamp 83. The positioning clamp 83 consists of two symmetrically distributed arc-shaped clamps in a C-shape. It is connected to the positioning base structure 7 through the positioning clamp bolt 81 and the positioning clamp screw 82, which facilitates clamping and fixing through the two positioning clamp screws 82.

[0035] Furthermore, the valve body 6 is located inside the positioning clamp structure 8, which facilitates the fixing of the valve body 6 by means of two positioning clamp screws 82.

[0036] In this embodiment, a valve claw type valve body 6 with a diameter of 8cm and a valve rubber 4 with a diameter of 6cm are selected. The operation steps are as follows:

[0037] 1. Observe the universal level 5 and adjust the equipment position to ensure that the equipment is level. Pass the positioning threaded hole of the upper guide sleeve 2 through the manual press head 12 and tighten it with bolts. Select lower guide sleeves 31 with diameters of 4, 6, 8, and 10 cm to assemble the lower guide sleeve 3;

[0038] 2. Place the valve body 6 in the positioning base groove 73, and control the positioning clamp 83 by the positioning clamp bolt 81 and the positioning clamp screw 82 to fix the valve body in the positioning base groove 73;

[0039] 3. After the valve body 6 is installed, install the lower guide sleeve 3 on the top of the valve body 6, and then install the valve rubber 4 onto the lower guide sleeve 3;

[0040] 4. After installation, press the press rod 11 of the press machine. Under the action of the upper guide sleeve 2, the valve rubber 4 moves downward along the lower guide sleeve 3 and is finally installed on the valve body 6.

[0041] Example 3:

[0042] The basic structure is the same as in Example 2. In this example, a valve claw valve body 6 with a diameter of 10cm is selected, and the valve rubber 4 has a diameter of 6cm. The operation steps are the same as in Example 2.

[0043] When using this device, select a valve body 6 with a diameter of 8cm and a valve rubber 4 with a diameter of 6cm. First, observe the universal level 5 and adjust the device position to ensure it is level. Pass the positioning threaded hole of the upper guide sleeve 2 through the manual press head 12 and tighten it with bolts. Select lower guide rings 31 with diameters of 4, 6, 8, and 10cm to assemble the lower guide sleeve 3. Next, place the valve body 6 in the positioning base groove 73 and control the positioning clamp 83 through the positioning clamp bolt 81 and positioning clamp screw 82 to fix the valve body in the positioning base groove 73. Then, after the valve body is installed, install the lower guide sleeve 3 on top of the valve body 6, and then install the valve rubber 4 onto the lower guide sleeve 3. After installation, press the press rod 11. Under the action of the upper guide sleeve 2, the valve rubber 4 moves downward along the lower guide sleeve 3 and is finally installed onto the valve body 6.

[0044] 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 size-adjustable plunger pump valve rubber pressing device, comprising a pressure device (1), characterized in that: The pressure device (1) is provided with an upper guide sleeve (2) below it, and a lower guide sleeve (3) is provided below the upper guide sleeve (2). The lower guide sleeve (3) is covered with a valve rubber sleeve (4). The pressure device (1) includes a pressure rod (11), a press head (12), and a press base (13). A universal level (5) is fixed on the press base (13). A valve body (6) is provided below the lower guide sleeve (3). A positioning base structure (7) is provided on the press base (13). A positioning clamp structure (8) is provided inside the positioning base structure (7). The upper guide sleeve (2) is fixed to the bottom of the press head (12). The upper guide sleeve (2), the lower guide sleeve (3), and the valve body (6) are in the same vertical direction.

2. The adjustable plunger pump valve rubber pressing device according to claim 1, characterized in that: The pressure device (1) is a height-adjustable manual press, and the press head (12) is a columnar structure.

3. The adjustable plunger pump valve rubber pressing device according to claim 1, characterized in that: The upper guide sleeve (2) has a positioning threaded hole at the upper opening, which is connected to the press head (12). The upper part of the inner wall is conical, and its specific shape matches the outer wall shape of the lower guide sleeve (3). The lower part is annular.

4. The adjustable plunger pump valve rubber pressing device according to claim 1, characterized in that: The lower guide sleeve (3) is composed of multiple lower guide sleeve rings (31) spliced ​​together. The upper part of the lower guide sleeve ring (31) is provided with a lower guide sleeve flange (32), and the lower part is provided with a lower guide sleeve groove (33). The lower guide sleeve flange (32) and the lower guide sleeve groove (33) are adapted to each other.

5. The adjustable plunger pump valve rubber pressing device according to claim 1, characterized in that: The positioning base structure (7) includes a positioning base (71), a press threaded hole (72), a positioning base groove (73), and a clamp threaded hole (74). The positioning base (71) is fixed to the press base (13) through the press threaded hole (72). The positioning base groove (73) is circular. The clamp threaded holes (74) are symmetrically distributed on both sides of the positioning base (71).

6. The adjustable plunger pump valve rubber pressing device according to claim 1, characterized in that: The positioning fixture structure (8) includes a positioning fixture bolt (81), a positioning fixture screw (82), and a positioning fixture (83). The positioning fixture (83) is composed of two symmetrically distributed arc-shaped fixtures in a C-shape, and is connected to the positioning base structure (7) through the positioning fixture bolt (81) and the positioning fixture screw (82).

7. The adjustable plunger pump valve rubber pressing device according to claim 1, characterized in that: The valve body (6) is located inside the positioning clamp structure (8).

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