Pump gate valve

Abstract

The utility model provides a pump gate valve, and belongs to the technical field of valve manufacturing. The gate valve solves the problem that an existing gate valve cannot protect gaps of pipeline installation and the like. The pump gate valve comprises a valve body, a loose joint base is welded to the right side of the valve body, the right side of the surface of the loose joint base is movably sleeved with a loose joint nut, and loose joint notches are formed in the top and the bottom of the left side of the loose joint nut; the top and the bottom of the surface of the loose joint nut and the top and the bottom of the surface of the water conveying pipe are sleeved with an upper protection sleeve and a lower protection sleeve correspondingly, sponge pads are glued to the inner sides of the upper protection sleeve and the lower protection sleeve correspondingly, the front side and the rear side of the bottom of the upper protection sleeve are fixedly connected with installation insertion shells correspondingly, and the front side and the rear side of the top of the lower protection sleeve are fixedly connected with insertion plates correspondingly. The outer side of the inserting plate is fixedly connected with a clamping protruding block. According to the utility model, the protection effect on mounting gaps is good, the cleaning difficulty is reduced, the service life is prolonged, and valve leakage points are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve manufacturing and relates to a pump gate valve. Background Technique

[0002] ‌The pump gate valve‌ is a valve with a gate plate as the opening and closing part, used to control the on-off of fluid. The gate valve has the characteristics of small fluid resistance, small opening and closing torque, good sealing performance, etc., and is applicable to various media and temperature ranges. The gate valve is widely used in application scenarios such as the outlet pipe and suction pipe of fire pumps and pressure stabilizing pumps.

[0003] After retrieval, the publication number is CN219932994U, and the name is an internal thread gate valve with a fastening connection, including a main body mechanism, a filtering mechanism and a bearing mechanism. Through research and analysis, it is found that although it can filter the water flow passing through the internal thread gate valve with a fastening connection according to needs and improve the working experience of the internal thread gate valve with a fastening connection, to a certain extent, there are still the following defects.

[0004] The protection effect at its interface with the pipeline is not good. After the above-mentioned gate valve is fixedly connected to the pipeline, the gap at the connection is exposed to the outside. After long-term use, substances such as dust and oil will enter the inside of the gap and are difficult to clean. At the same time, corrosive substances will erode the inside of the gap and cause damage, affecting the service life. Moreover, since the union base is movably connected to the valve body, the leakage points of the valve increase. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems existing in the prior art, and to provide a pump gate valve with better protection effect on the installation gap, reduced cleaning difficulty, extended service life and reduced valve leakage points.

[0006] The purpose of the utility model can be achieved by the following technical solutions: a pump gate valve, including a valve body, a union base is welded on the right side of the valve body, a union nut is movably sleeved on the right side of the surface of the union base, union notches are respectively opened at the top and bottom on the left side of the union nut, a water delivery pipe is threadedly installed on the right side of the union nut, upper and lower protective sleeves are respectively sleeved on the top and bottom of the surfaces of the union nut and the water delivery pipe, sponge pads are adhesively attached to the inner sides of the upper and lower protective sleeves, installation insertion shells are fixedly connected to the front and rear sides of the bottom of the upper protective sleeve, insertion plates are fixedly connected to the front and rear sides of the top of the lower protective sleeve, and clamping convex blocks are fixedly connected to the outside of the insertion plates.

[0007] This pump gate valve mainly sets an upper protective sleeve, a sponge pad, a lower protective sleeve, an installation socket, a plug-in board, and a union notch on the outer surface of the union nut. Through the upper protective sleeve, the sponge pad, the lower protective sleeve, the installation socket, the plug-in board, and the union notch, the protection effect of the connection gap can be improved, the cleaning difficulty can be reduced, the service life can be extended, and the valve leakage points can be reduced.

[0008] In the above-mentioned pump gate valve, a clamping opening is provided on the outer side of the installation socket, and a chamfer is provided on the outer side of the clamping convex block. In practical applications, by setting the chamfer, it has the function of facilitating insertion, and can conveniently insert the clamping convex block into the clamping opening.

[0009] In the above-mentioned pump gate valve, both the upper protective sleeve and the lower protective sleeve are made of elastic rubber pad material, and both the installation socket and the plug-in board are made of hard plastic material. In practical applications, by setting the upper protective sleeve and the lower protective sleeve to be made of elastic rubber pad material, it can be stretched by pulling, which is convenient for use with pipe orifices of different diameters.

[0010] In the above-mentioned pump gate valve, the water delivery pipe includes a pipe joint, a fixing nut is welded on the right side of the pipe joint, and a pipe body is fixedly communicated on the right side of the fixing nut.

[0011] In the above-mentioned pump gate valve, a valve cap is fixedly connected to the top of the valve body, and an external thread compression cap is fixedly connected to the top of the valve cap. In practical applications, by setting the external thread compression cap, the sealing performance between the valve stem and the valve cap can be improved.

[0012] In the above-mentioned pump gate valve, a lock nut is threadedly sleeved on the left side of the valve body, and a valve stem penetrates through and is movably connected to the top of the valve body. In practical applications, by setting the lock nut, it is convenient to connect with the pipeline on the other side.

[0013] Compared with the prior art, the advantages of this pump gate valve are: it has better protection effect on the installation gap during the working process, reduces the cleaning difficulty, extends the service life, and reduces the valve leakage points. Brief Description of the Drawings

[0014] Figure 1 is the axonometric view of this pump gate valve.

[0015] Figure 2 is the exploded view of the partial structure of this pump gate valve.

[0016] Figure 3 is the exploded view of the upper protective sleeve and the lower protective sleeve of this pump gate valve.

[0017] Figure 4 is the left-side axonometric view of the valve body of this pump gate valve.

[0018] In the figure: 1. Valve body; 2. Lock nut; 3. Valve stem; 4. External thread compression nut; 5. Valve cap; 6. Upper protective sleeve; 7. Sponge pad; 8. Water delivery pipe; 9. Lower protective sleeve; 10. Union nut; 11. Pipe joint; 12. Fixed nut; 13. Pipe body; 14. Installation socket; 15. Clamping opening; 16. Clamping convex block; 17. Insertion plate; 18. Union notch; 19. Union base. Detailed implementation manners

[0019] The following are specific embodiments of the present utility model and in combination with the attached drawings, the technical solutions of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0020] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, this pump gate valve includes a valve body 1, a union base 19 is welded to the right side of the valve body 1, a union nut 10 is movably sleeved on the right side surface of the union base 19, union notches 18 are respectively opened at the top and bottom on the left side of the union nut 10, a water delivery pipe 8 is threadedly installed on the right side of the union nut 10, upper protective sleeves 6 and lower protective sleeves 9 are respectively sleeved on the top and bottom surfaces of the union nut 10 and the water delivery pipe 8, sponge pads 7 are adhesively attached to the inner sides of the upper protective sleeves 6 and the lower protective sleeves 9, installation sockets 14 are fixedly connected to the front and rear sides at the bottom of the upper protective sleeve 6, insertion plates 17 are fixedly connected to the front and rear sides at the top of the lower protective sleeve 9, and clamping convex blocks 16 are fixedly connected to the outer sides of the insertion plates 17.

[0021] During actual manufacturing, a clamping opening 15 is opened on the outer side of the installation socket 14, and a chamfer is opened on the outer side of the clamping convex block 16.

[0022] During actual manufacturing, both the upper protective sleeve 6 and the lower protective sleeve 9 are made of elastic rubber pad material, and both the installation socket 14 and the insertion plate 17 are made of rigid plastic material.

[0023] During actual manufacturing, the water delivery pipe 8 includes a pipe joint 11, a fixed nut 12 is welded to the right side of the pipe joint 11, and a pipe body 13 is fixedly communicated with the right side of the fixed nut 12.

[0024] During actual manufacturing, a valve cap 5 is fixedly connected to the top of the valve body 1, and an external thread compression nut 4 is fixedly connected to the top of the valve cap 5.

[0025] During actual manufacturing, a lock nut 2 is threadedly sleeved on the left side of the valve body 1, and a valve stem 3 penetrates through and is movably connected to the top of the valve body 1.

[0026] During actual manufacturing, the valve body 1 and the union base 19 of this globe valve are of an integral structure. Union notches 18 are provided at the top and bottom on the left side of the union nut 10. The union nut 10 is connected to the union base 19 on the valve body 1 in a way of notch socket connection. The union nut 10 can be removed or installed at any time, without the need for the nut to be fixed on the valve body 1 through a snap ring and a fixed retaining ring like a common union structure, reducing production costs. At the same time, the leakage points between the union base 19 and the valve body 1 will also be reduced. Insert the pipe joint 11 into the union nut 10 and tighten it. After the water delivery pipe 8 is connected to the globe valve, set the upper protective sleeve 6 at the gap between the union nut 10 and the fixed nut 12, and then set the lower protective sleeve 9 at the bottom. At this time, insert the insertion plates 17 on both sides of the top of the lower protective sleeve 9 into the installation insertion shells 14 on both sides of the bottom of the upper protective sleeve 6 respectively and push forcefully. When it is completely inserted, the clamping convex block 16 is snapped into the clamping opening 15 to complete the connection between the upper protective sleeve 6 and the lower protective sleeve 9. In this way, the gap between the union nut 10 and the fixed nut 12 can be sealed and protected, preventing substances such as dust and oil from entering the gap during use, reducing the cleaning difficulty inside the gap, and at the same time preventing corrosive substances from entering the interior to erode the internal structure and affect the sealing performance, thus extending the service life.

[0027] The content not detailedly described in this specification belongs to the prior art well-known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A pump gate valve, comprising a valve body (1), characterized in that: A movable base (19) is welded to the right side of the valve body (1), a movable nut (10) is movably sleeved on the right side of the surface of the movable base (19), a movable notch (18) is provided at the top and bottom of the left side of the movable nut (10), a water pipe (8) is threadedly mounted on the right side of the movable nut (10), an upper protective sleeve (6) and a lower protective sleeve (9) are sleeved on the top and bottom of the surfaces of the movable nut (10) and the water pipe (8), respectively, a sponge pad (7) is glued to the inner sides of the upper protective sleeve (6) and the lower protective sleeve (9), the front and rear sides of the bottom of the upper protective sleeve (6) are fixedly connected to a mounting plug shell (14), the front and rear sides of the top of the lower protective sleeve (9) are fixedly connected to a plug board (17), and the outer side of the plug board (17) is fixedly connected to a clamping protrusion (16).

2. A pump gate valve according to claim 1, characterized in that: The outer side of the mounting plug shell (14) is provided with a snap-fit ​​opening (15), and the outer side of the snap-fit ​​protrusion (16) is provided with a chamfer.

3. A pump gate valve according to claim 1, characterized in that: The upper protective sleeve (6) and the lower protective sleeve (9) are both made of elastic rubber pad material, and the mounting plug shell (14) and the plug board (17) are both made of hard plastic material.

4. A pump gate valve according to claim 1, characterized in that: The water delivery pipe (8) comprises a pipe joint (11), a fixing nut (12) is welded on the right side of the pipe joint (11), and the right side of the fixing nut (12) is fixedly connected to a pipe body (13).

5. A pump gate valve according to claim 1, characterized in that: The top of the valve body (1) is fixedly connected to a valve cap (5), and the top of the valve cap (5) is fixedly connected to an externally threaded pressure cap (4).

6. A pump gate valve according to claim 1, characterized in that: The left threaded sleeve of the valve body (1) is provided with a locking cap (2), and the top of the valve body (1) is movably connected with a valve stem (3).

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