Dismounting device for valve cone and valve seat of diaphragm pump

Abstract

The utility model relates to a dismounting device for a valve cone and a valve seat of a diaphragm pump, which belongs to the field of diaphragm pump maintenance equipment and comprises a fixing block, a pull rod, a base, a hydraulic jack, an upper nut and a lower nut. The lower nut is connected to the lower end of the pull rod; an elliptical hole is formed in the base, and the base is connected with the pull rod through the elliptical hole in an angle-adjustable mode and located above the lower nut; the upper nut is connected to the upper end of the pull rod, and the upper nut, the hydraulic jack and the fixing block are sequentially connected with the pull rod from top to bottom; the base is a cuboid, and the long axis of the elliptical hole is parallel to the long side of the cuboid. The valve cone and the valve seat can be disassembled without a pressurization oil groove, leakage of pressurization oil is effectively avoided, the working environment is improved, the disassembly efficiency is high, and the labor intensity is low.

Description

Technical Field

[0001] This utility model belongs to the field of diaphragm pump maintenance equipment, specifically, it relates to a diaphragm pump valve cone and valve seat disassembly device. Background Technology

[0002] Diaphragm pumps utilize a diaphragm to pump liquid. The reciprocating motion of a piston drives the diaphragm, which in turn moves the valve cone and seat to discharge the liquid. Due to the constant reciprocating motion of the valve cone and seat, wear is unavoidable, necessitating periodic disassembly and replacement. This issue exists in the disassembly of both the valve cone and seat in three-cylinder single-cylinder single-acting piston diaphragm pumps. The valve seat assembly is self-locking, making disassembly difficult. The original design involves a pressurized oil groove on the valve seat mounting surface, which is pressurized to remove the seat. However, during disassembly, due to varying degrees of wear on the valve cone, seat, and valve box mounting surfaces, pressure leaks through the worn surfaces during pressurized disassembly, preventing proper removal of the valve seat. Furthermore, the leaked pressurized oil contaminates the ground. The disassembly process is time-consuming, labor-intensive, and environmentally unfriendly, significantly impacting the replacement schedule of the valve cone and seat. Summary of the Invention

[0003] In order to overcome the problems existing in the background technology, this utility model provides a diaphragm pump valve cone and valve seat disassembly device, which can disassemble the valve cone and valve seat without the need for a pressurized oil tank, effectively avoiding pressurized oil leakage, improving the working environment, and having high disassembly efficiency and low labor intensity.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] The diaphragm pump valve cone and valve seat disassembly device includes a fixing block, a pull rod, a base, a hydraulic jack, an upper nut, and a lower nut; the lower nut is connected to the lower end of the pull rod; the base has an elliptical hole, and the base is connected to the pull rod at an adjustable angle through the elliptical hole, and is located above the lower nut; the upper nut is connected to the upper end of the pull rod, and the upper nut, the hydraulic jack, and the fixing block are connected to the pull rod in sequence from top to bottom.

[0006] Preferably, the base is a cuboid, and the major axis of the elliptical hole is parallel to the long side of the cuboid.

[0007] Preferably, the lower end face of the long side of the base is provided with arc-shaped surfaces on both sides.

[0008] Preferably, the hydraulic jack is provided with lifting lugs on its side.

[0009] Preferably, the top of the pull rod is provided with a lifting lug.

[0010] Preferably, the upper nut is a locking nut; and the lower nut is a limiting nut.

[0011] The beneficial effects of this utility model are:

[0012] This invention eliminates the need for the original hydraulic oil tank and allows for the removal of the valve cone and valve seat from the valve box without relying on hydraulic operation. This effectively avoids the problem of pressurized oil leakage along the wear surface caused by the use of hydraulic oil in existing disassembly methods, improves the working environment, and offers high disassembly efficiency.

[0013] This utility model, through the structural arrangement of a fixing block, a hydraulic jack, and a locking nut, loosens the valve cone and valve seat during disassembly by means of the action of the hydraulic jack, thus reducing the labor intensity of disassembly.

[0014] This invention designs the base as a cuboid structure with an elliptical hole. The major axis of the elliptical hole is along the long side of the cuboid. When the base is passed through the valve cone hole, the elliptical hole causes the base to tilt and pass smoothly through the valve cone hole. After passing through the valve cone hole, the base returns to a horizontal position and is secured below the valve cone. The valve cone is then lifted using the force of a hydraulic jack, thus removing the valve cone and valve seat. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 This is a schematic diagram of the base structure of this utility model;

[0018] Figure 4 This is a diagram showing the usage state of this utility model;

[0019] In the diagram, 1-base, 2-fixing block, 3-pull rod, 4-upper nut, 5-hydraulic jack, 6-lower nut, 7-lifting lug, 8-valve box, 9-arc surface, 10-handle, 11-concave surface. Detailed Implementation

[0020] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0021] In the description of this utility model, unless otherwise stated, the terms "upper" and "lower" indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] like Figure 1-4 As shown, the diaphragm pump valve cone and valve seat disassembly device includes a fixing block 2, a pull rod 3, a base 1, a hydraulic jack 5, an upper nut 4, and a lower nut 6.

[0024] The fixing block 2 has a through hole for the pull rod, and the base 1 has an elliptical hole 8. The upper nut 4, hydraulic jack 5, fixing block 2, base 1, and lower nut 9 are connected to the pull rod 3 in sequence from top to bottom. The lower nut 6 is connected to the lower end of the pull rod 3 and is used to limit the base 1 to prevent the base 1 from falling off the pull rod 3.

[0025] The elliptical hole 8 on the base 1 has its major axis parallel to the long side of the base 1. When the base 1 is passed through the valve cone hole, the gap between the elliptical hole and the pull rod 3 is used to tilt the base and allow it to pass smoothly through the valve cone hole. After passing through the valve cone hole, the base returns to a horizontal position and can be stuck under the valve cone. The valve cone can then be lifted by the force of a hydraulic jack to remove the valve cone and valve seat.

[0026] As a preferred embodiment, the lower end face of the long side of the base 1 is provided with arc-shaped surfaces 9 on both sides. The setting of the arc-shaped surfaces 9 can increase the inclination of the base 1 when passing through the valve cone hole, and when passing through the valve cone hole from top to bottom, it makes arc-shaped contact with the hole wall of the valve cone hole, which can reduce the probability of the base 1 getting stuck in the valve cone hole.

[0027] As a preferred embodiment, the upper end face of the base 1 is provided with concave surfaces 11 on both sides. When pulled up, the middle protruding section of the upper end face of the base 1 can be inserted into the valve cone hole, preventing the valve cone and valve seat from shifting during the lifting process after disassembly.

[0028] In use, the fixing block 2 is placed on the valve box 8. When the hydraulic jack 5 is used to lift the lever 3, the fixing block 2 provides support for the hydraulic jack 5. Handles 10 are provided on both sides of the fixing block 2 for easy manual handling or to gently hold the handles 10 during lifting to prevent excessive shaking.

[0029] As a preferred option, the hydraulic jack 5 is symmetrically equipped with two lifting lugs 7 on its side wall. The top of the tie rod 3 is also equipped with a lifting lug 7.

[0030] The working process of this utility model:

[0031] (i) Tilt the base 1 and pass it through the valve cone hole. After passing through, pull the rod 3 to make the base 1 horizontal and the base 1 horizontally stuck under the valve cone; (ii) Connect the fixing block 2 to the rod 3; (iii) Connect the hydraulic jack 5 to the rod 3. During the connection process, be careful to lift the rod 3 by hand to prevent the rod 3 from sliding down; (iv) Connect the upper nut 4 to the rod 3; (v) Operate the hydraulic jack 5 to lift the base 1, so that the valve cone and valve seat are separated from the installation mating surface of the valve box; (vi) Then use an electric hoist or other lifting tools to pass through the lifting lug 7 and lift the present invention together with the valve cone and valve seat out of the valve box to realize the disassembly of the valve cone and valve seat.

[0032] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A device for disassembling the valve cone and valve seat of a diaphragm pump, characterized in that, It includes a fixing block (2), a pull rod (3), a base (1), a hydraulic jack (5), an upper nut (4), and a lower nut (6); the lower nut (6) is connected to the lower end of the pull rod (3); the base (1) has an elliptical hole (8), and the base (1) is connected to the pull rod (3) at an adjustable angle through the elliptical hole (8), and the base (1) is located above the lower nut (6); the upper nut (4) is connected to the upper end of the pull rod (3), and the upper nut (4), the hydraulic jack (5), and the fixing block (2) are connected to the pull rod (3) from top to bottom.

2. The diaphragm pump valve cone and valve seat disassembly device according to claim 1, characterized in that, The base (1) is a cuboid structure, and the major axis of the elliptical hole (8) is parallel to the long side of the base (1).

3. The diaphragm pump valve cone and valve seat disassembly device according to claim 2, characterized in that, The lower end face of the long side of the base (1) is respectively set as an arc surface on both sides.

4. The diaphragm pump valve cone and valve seat disassembly device according to claim 1, characterized in that, The hydraulic jack (5) is provided with a lifting lug (7).

5. The diaphragm pump valve cone and valve seat disassembly device according to claim 1, characterized in that, The top of the pull rod (3) is provided with a lug (7).

6. The diaphragm pump valve cone and valve seat disassembly device according to claim 1, characterized in that, The upper nut (4) is a locking nut; the lower nut (6) is a limiting nut.

7. The diaphragm pump valve cone and valve seat disassembly device according to claim 1, characterized in that, The upper surface of the base (1) is provided with concave surfaces (11) on both sides.

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