Wear-resistant guide rod type one-way valve structure

Abstract

The utility model discloses a wear-resistant guide rod type one-way valve structure which comprises a guide rod, a valve seat is arranged on the outer wall of the top of the guide rod, a valve disc is arranged on the outer wall of the bottom of the guide rod, a wear-resistant assembly used for protecting the guide rod is arranged in the middle of the valve seat, and the wear-resistant assembly comprises a wear-resistant guide sleeve. A lock nut is arranged at the joint of the bottom of the guide rod and the valve disc, and a reinforcing piece used for reinforcing connection of the lock nut and the guide rod is arranged at the joint of the top of the lock nut and the guide rod. The wear-resistant guide sleeve is arranged to facilitate sliding insertion of the guide rod at the position of the valve seat, then the reinforcer for reinforcing connection between the top of the lock nut and the guide rod is arranged at the joint of the top of the lock nut and the guide rod, connection between the lock nut and the guide rod is reinforced through the reinforcer, and a squeezing compensation mode is adopted. Therefore, the valve body can operate stably without influencing the normal aging replacement of each structural part while the valve body and the valve body are connected tightly.

Description

Technical Field

[0001] The utility model relates to the field of diaphragm pumps and plunger pumps, in particular to a wear-resistant guide rod type one-way valve structure. Background Art

[0002] The check valve is a key component of the high-pressure diaphragm pump, which plays a one-way flow function. Due to the abrasiveness and corrosiveness of the conveying medium such as slurry, and the continuous opening and closing of the check valve when the diaphragm pump is running at high pressure, the valve core and valve seat are subjected to continuous strong impact and high-speed erosion, making it a vulnerable component. The performance and life of the diaphragm pump's check valve directly affect the performance and continuous operation rate of the diaphragm pump, and have a huge impact on the production capacity of the entire working system and the equipment operation loss.

[0003] The valve cone is an important component of the one-way valve. A guide rod is arranged inside the valve cone, and the guide rod drives the valve disc to move so that the valve disc and the valve seat are closed with each other. Therefore, a lock nut is arranged at the connection between the valve disc and the guide rod to connect the two. However, in the process of the guide rod driving the valve disc to move, the valve disc will inevitably collide with the valve seat frequently. The continuous collision will cause friction between the lock nut and the guide rod, which will easily cause the loose connection between the two, and then the guide rod will gradually fail to drive the valve disc to operate, affecting the use of the entire valve body. Therefore, a wear-resistant guide rod type one-way valve structure is proposed. Utility Model Content

[0004] The utility model aims to provide a wear-resistant guide rod type one-way valve structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant guide rod type one-way valve structure, comprising a guide rod, a valve seat is arranged on the outer wall of the top of the guide rod, a valve disc is arranged on the outer wall of the bottom of the guide rod, a wear-resistant component for protecting the guide rod is arranged in the middle of the valve seat, the wear-resistant component comprises a wear-resistant guide sleeve, a lock nut is arranged between the bottom of the guide rod and the connection between the valve disc, and a reinforcement member for strengthening the connection between the top of the lock nut and the guide rod is arranged between the connection between the two.

[0006] Preferably, both sides of the wear-resistant guide sleeve are fixedly connected with connecting blocks, a thread groove is opened in the middle of the connecting block, a second bolt is threadedly inserted and connected in the middle of the thread groove, and one end of the second bolt is threadedly inserted and connected to the bottom of the valve seat.

[0007] Preferably, a guide groove is provided in the middle of the valve seat, and the middle of the guide groove and the outer wall of the guide rod are slidably interlaced and connected.

[0008] Preferably, the side of the valve seat and the side of the top of the valve disc are both provided with a welding layer body.

[0009] Preferably, the reinforcement comprises:

[0010] A fixing sleeve, the fixing sleeve being sleeved on the inner wall of the lock nut;

[0011] A connecting ring, the connecting ring is fixedly connected to the top end of the fixing sleeve;

[0012] The fastening sleeve is sleeved on the outer wall of the bottom of the guide rod and inserted into the top inner wall of the connecting ring. The fastening sleeve is used to cooperate with the top inner wall of the connecting ring to clamp the guide rod.

[0013] Preferably, both ends of the fastening sleeve are provided with insertion holes, a first bolt is inserted into one of the insertion holes, a guide column is inserted into the other insertion hole, and the bottom end of the guide column is fixedly connected to the top end of the connecting ring.

[0014] Preferably, a fastening screw groove is provided at the top end of the connecting ring and is centrally symmetrical with the guide column, and the threaded end of the first bolt is threadedly inserted and connected with the inner wall of the fastening screw groove.

[0015] Preferably, a nut is provided on the outer wall of the valve disc.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model firstly arranges a wear-resistant guide sleeve to facilitate the sliding and insertion of the guide rod at the valve seat, and then arranges a reinforcement member for strengthening the connection between the top of the lock nut and the guide rod between the two, and utilizes the reinforcement member to strengthen the connection between the lock nut and the guide rod, and adopts an extrusion compensation method to make the two tightly connected, and at the same time, the normal aging replacement of each structural member is not affected, so that the valve body can operate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the main structure of the utility model.

[0019] Figure 2 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0020] Figure 3 For this utility model Figure 1 Enlarged structural diagram at B in the middle.

[0021] Figure 4 It is a structural schematic diagram of the reinforcement part of the utility model.

[0022] In the figure: 1. guide rod; 2. valve disc; 3. lock nut; 301. fixing sleeve; 302. connecting ring; 30201. guide column; 303. fastening sleeve; 304. first bolt; 4. valve seat; 5. wear-resistant guide sleeve; 501. second bolt; 502. connecting block; 6. welding layer body; 7. nut. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figure 1-4 A wear-resistant guide rod type one-way valve structure is shown, comprising a guide rod 1, a valve seat 4 is arranged on the outer wall of the top of the guide rod 1, a valve disc 2 is arranged on the outer wall of the bottom of the guide rod 1, a wear-resistant component for protecting the guide rod 1 is arranged in the middle of the valve seat 4, the wear-resistant component comprises a wear-resistant guide sleeve 5, a lock nut 3 is arranged between the bottom of the guide rod 1 and the connection between the valve disc 2, and a reinforcement member for strengthening the connection between the top of the lock nut 3 and the guide rod 1 is arranged between the connection between the two.

[0025] Specifically, the reinforcement includes:

[0026] A fixing sleeve 301, which is sleeved on the inner wall of the lock nut 3;

[0027] A connecting ring 302, the connecting ring 302 is fixedly connected to the top of the fixing sleeve 301;

[0028] The fastening sleeve 303 is sleeved on the outer wall of the bottom of the guide rod 1 and inserted into the top inner wall of the connecting ring 302 . The fastening sleeve 303 is used to cooperate with the top inner wall of the connecting ring 302 to clamp the guide rod 1 .

[0029] It should be noted that the guide rod 1 passes through the center of the valve disc 2 and is sleeved by the lock nut 3. The outer wall of the lock nut 3 is sleeved on the center of the bottom of the valve disc 2. Due to such a connection, when the guide rod 1 drives the valve disc 2 to move, the lock nut 3 will be continuously impacted and rubbed against the guide rod 1. Therefore, a fixed sleeve 301 is added to assist in the friction compensation between the lock nut 3 and the guide rod 1. However, if such an operation method is not adjusted for compensation, the friction between the guide rod 1 and the fixed sleeve 301 will also affect the connection. Therefore, a fastening sleeve 303 is provided to provide friction compensation.

[0030] refer to Figure 4As shown, the fastening sleeve 303 is designed as a semi-enclosed structure, which can facilitate the installation of the fastening sleeve 303 and the outer wall of the guide rod 1. At the same time, the fastening sleeve 303 is made of rubber material, which can be deformed after being compressed. Through the semi-enclosed structure design, after being squeezed, the middle groove can shrink and fit tightly against the outer wall of the guide rod 1.

[0031] Furthermore, both ends of the fastening sleeve 303 are provided with insertion holes, one of which is inserted with a first bolt 304, and the other is inserted with a guide column 30201. The bottom end of the guide column 30201 is fixedly connected to the top end of the connecting ring 302. The setting of the guide column 30201 can assist in the installation of the fastening sleeve 303.

[0032] Furthermore, a fastening screw groove is provided at the top of the connecting ring 302 and is symmetrical with the guide column 30201. The threaded end of the first bolt 304 is threadedly connected with the inner wall of the fastening screw groove. After the fastening sleeve 303 is sleeved on the outer wall of the guide rod 1, the guide column 30201 assists it in completing the sleeve installation and tightens the first bolt 304. Under the pressure of the first bolt 304, the fastening sleeve 303 is always pushed downward so that its outer wall is tightly against the inner wall of the connecting ring 302. At the same time, under the pressure of the inner wall of the connecting ring 302, the fastening sleeve 303 is tightly against the outer wall of the guide rod 1 to achieve fastening friction extrusion, thereby achieving friction fastening between the fastening sleeve 303 and the outer wall of the guide rod 1.

[0033] Specifically, both sides of the wear-resistant guide sleeve 5 are fixedly connected with connecting blocks 502, a thread groove is opened in the middle of the connecting block 502, a second bolt 501 is threadedly inserted in the middle of the thread groove, and one end of the second bolt 501 is threadedly inserted and connected to the bottom of the valve seat 4.

[0034] It should be noted that a slide groove is provided in the middle of the wear-resistant guide sleeve 5, and the middle of the slide groove and the outer wall of the guide rod 1 are slidably and interlacedly connected. This design facilitates the connection between the wear-resistant guide sleeve 5 and the guide rod 1. The wear-resistant guide sleeve 5 is used to protect the outer wall of the guide rod 1. This design is to protect the outer wall of the guide rod 1 and reduce wear during use. The wear-resistant guide sleeve 5 is connected to the second bolt 501 by the second bolt 501, so that the wear-resistant guide sleeve 5 can be disassembled and maintained.

[0035] Furthermore, a guide groove is provided in the middle of the valve seat 4 , and the middle of the guide groove and the outer wall of the guide rod 1 are slidably interlaced and connected.

[0036] It should be noted that such a design facilitates the sliding and interpenetrating connection between the valve seat 4 and the guide rod 1 .

[0037] Furthermore, the side of the valve seat 4 and the side of the top of the valve disc 2 are both provided with a welding layer body 6 .

[0038] It should be noted that the welding layer body 6 is welded with wear-resistant material on the contact surface between the valve seat 4 and the valve disc 2. This design facilitates direct collision and friction between the valve seat 4 and the valve disc 2.

[0039] Furthermore, a nut 7 is provided on the outer wall of the valve disc 2 .

[0040] It should be noted that the guide rod 1 passes through the center of the valve disc 2 and is tightly locked on the valve disc 2 by the lock nut 3 , and special wear-resistant material is welded on the contact surface between the valve disc 2 and the valve seat 4 .

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wear-resistant guide rod type one-way valve structure, comprising a guide rod (1), a valve seat (4) being arranged on the outer wall of the top of the guide rod (1), and a valve disc (2) being arranged on the outer wall of the bottom of the guide rod (1), characterized in that: A wear-resistant component for protecting the guide rod (1) is arranged in the middle of the valve seat (4), and the wear-resistant component includes a wear-resistant guide sleeve (5). A lock nut (3) is arranged between the bottom of the guide rod (1) and the connection between the valve disc (2), and a reinforcement member for strengthening the connection between the top of the lock nut (3) and the guide rod (1) is arranged between the connection between the two.

2. A wear-resistant guide rod type one-way valve structure according to claim 1, characterized in that: Both sides of the wear-resistant guide sleeve (5) are fixedly connected to connecting blocks (502), a thread groove is provided in the middle of the connecting block (502), a second bolt (501) is threadedly inserted and connected in the middle of the thread groove, and one end of the second bolt (501) is threadedly inserted and connected to the bottom of the valve seat (4).

3. A wear-resistant guide rod type one-way valve structure according to claim 1, characterized in that: A guide groove is provided in the middle of the valve seat (4), and the middle of the guide groove and the outer wall of the guide rod (1) are slidably interlaced and connected.

4. A wear-resistant guide rod type one-way valve structure according to claim 1, characterized in that: The side edge of the valve seat (4) and the side edge of the top end of the valve disc (2) are both provided with a welding layer body (6).

5. A wear-resistant guide rod type one-way valve structure according to claim 1, characterized in that: The reinforcement member comprises: A fixing sleeve (301), wherein the fixing sleeve (301) is sleeved on the inner wall of the lock nut (3); A connecting ring (302), wherein the connecting ring (302) is fixedly connected to the top end of the fixing sleeve (301); A fastening sleeve (303) is sleeved on the outer wall of the bottom of the guide rod (1) and inserted into the top inner wall of the connecting ring (302); the fastening sleeve (303) is used to cooperate with the top inner wall of the connecting ring (302) to clamp the guide rod (1).

6. A wear-resistant guide rod type one-way valve structure according to claim 5, characterized in that: Both ends of the fastening sleeve (303) are provided with insertion holes, a first bolt (304) is inserted into one of the insertion holes, and a guide column (30201) is inserted into the other insertion hole, and the bottom end of the guide column (30201) is fixedly connected to the top end of the connecting ring (302).

7. A wear-resistant guide rod type one-way valve structure according to claim 6, characterized in that: A fastening screw groove is provided at the top end of the connecting ring (302) and is centrally symmetrical with the guide column (30201), and the threaded end of the first bolt (304) is threadedly inserted and connected with the inner wall of the fastening screw groove.

8. A wear-resistant guide rod type one-way valve structure according to claim 1, characterized in that: The outer wall of the valve disc (2) is provided with a nut (7).

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