Positioning sleeve with spring seat and good wear resistance

Abstract

The utility model provides a locating sleeve with a spring seat and good abrasion resistance, which belongs to the technical field of pump body channels and comprises a locating sleeve body, the locating sleeve body is arranged inside a pump body output channel, an abrasion-resistant lining is arranged on the inner surface of the locating sleeve body, and the spring seat is arranged on the inner surface of the abrasion-resistant lining. A spring seat is arranged in the positioning sleeve body, one side of the spring seat is in contact with the abrasion-resistant lining, the other side of the spring seat is connected with an anti-fatigue spring, one end of the anti-fatigue spring is connected with the spring seat, the other end of the anti-fatigue spring is connected with a valve element, the valve element is in contact with the valve seat, and a lubricating oil channel is formed in the positioning sleeve body. A miniature oil pump is arranged in the lubricating oil channel, the outer portion of the lubricating oil channel communicates with an oil storage bin, an oil injection port is formed in the oil storage bin, four groups of flow guide ports are formed in the valve seat, and a flow guide pipe is detachably connected to the outer portion of an output channel of the pump body. The utility model can solve the problems of easy wear and poor wear resistance.

Description

Technical Field

[0001] The utility model belongs to the technical field of pump body channels, and specifically relates to a positioning sleeve with a spring seat and good anti-wear performance. Background Art

[0002] In the current technical field, the one-way output channel of the pump body and the internal one-way valve play crucial roles. The one-way output channel of the pump body ensures that the fluid flows along a predetermined direction during the pumping process, preventing backflow and mixing, thereby improving the efficiency and stability of the system. The internal one-way valve, as a key component for controlling the one-way flow of the fluid, can effectively prevent reverse flow and ensure the continuity and accuracy of the pumping process.

[0003] In practical applications, for example, in the fluid transportation system of the petrochemical industry, precise one-way flow control is crucial for the smooth progress of the technological process and the guarantee of product quality. In the pumping system of a sewage treatment plant, the one-way valve can prevent the treated water from flowing back and ensure that the discharged water quality meets the standards.

[0004] However, in these application scenarios, the positioning sleeve and the spring seat inside the one-way valve often face the problem of easy wear. Taking the pump body in an industrial refrigeration system as an example, due to long-term high-frequency operation and changes in fluid pressure, the continuous friction between the positioning sleeve and the spring seat will cause the surface of the components to gradually wear. This will not only affect the sealing performance of the one-way valve, resulting in increased leakage and reduced system efficiency, but also may cause debris generated by wear to enter the fluid, polluting the medium and affecting the normal operation of the entire system. Summary of the Utility Model

[0005] In view of this, the utility model provides a positioning sleeve with a spring seat and good anti-wear performance, which can solve the problems of easy wear and poor anti-wear performance.

[0006] The utility model is realized as follows:

[0007] The utility model provides a positioning sleeve with a spring seat and good anti-wear performance, which includes a positioning sleeve body. The positioning sleeve body is arranged inside the pump body output channel. A wear-resistant bushing is arranged on the inner surface of the positioning sleeve body. A spring seat is arranged inside the positioning sleeve body. One side of the spring seat contacts the wear-resistant bushing, and the other side is connected to an anti-fatigue spring. One end of the anti-fatigue spring is connected to the spring seat, and the other end is connected to a valve core. The valve core contacts a valve seat. An oil lubrication channel is arranged on the positioning sleeve body. A micro oil pump is arranged inside the oil lubrication channel. The outside of the oil lubrication channel is communicated with an oil storage bin. An oil filling port is arranged on the oil storage bin. 4 groups of diversion ports are opened on the valve seat. A diversion pipe is detachably connected to the outside of the pump body output channel.

[0008] The technical effects of a positioning sleeve with a spring seat and good anti-wear performance provided by the present utility model are as follows: By providing a wear-resistant bushing to reduce the friction between the anti-fatigue spring and the spool and the positioning sleeve body; by providing a spring seat to connect the anti-fatigue spring and the spool, so that the fluid output by the pump body presses to push the spool away from the valve seat, preventing internal pollution caused by backflow during fluid output; by providing an anti-fatigue spring to connect the spring seat and the spool, driving the spool to expand and contract axially; by providing a micro oil pump to extract the lubricating oil inside the oil storage chamber and inject it into the contact surface inside the spring seat through the lubricating oil passage, further improving the service life of the components and reducing wear; by providing a diversion port and externally connecting a diversion pipe to achieve the one-way output effect of the fluid.

[0009] On the basis of the above technical solution, a positioning sleeve with a spring seat and good anti-wear performance of the present utility model can also be improved as follows:

[0010] Wherein, the positioning sleeve body is made of high-strength alloy material and is arranged in a cylindrical shape on the inner wall of the pump body output channel.

[0011] Further, convex columns are provided at one end of the axis of the spring seat and the axis of the spool, insertion holes are provided on the convex columns, and both ends of the anti-fatigue spring are fixedly connected to the spring seat and the spool corresponding to the insertion holes respectively.

[0012] Further, an internal thread is provided on the inner wall of the diversion pipe, and an external thread structure adapted to the internal thread is provided on the outside of the pump body output channel for fixed installation.

[0013] The beneficial effect of adopting the above improvement scheme is: By providing an internally and externally adapted thread structure for installing the diversion pipe at the corresponding position outside the pump body output channel.

[0014] Further, a limit convex is provided on the outer wall of the pump body output channel, and a sealing ring is provided between the limit convex and the diversion pipe.

[0015] The beneficial effect of adopting the above improvement scheme is: By providing a limit convex and a sealing ring to strengthen the sealing effect of the installation position between the pump body output channel and the diversion pipe and prevent fluid from leaking out through the connection.

[0016] Further, the oil outlet of the lubricating oil passage is arranged on the side where the wear-resistant bushing contacts the spring seat.

[0017] The beneficial effect of adopting the above improvement scheme is: By providing an oil outlet to introduce the lubricating oil into the inner surface of the wear-resistant bushing.

[0018] Further, the micro oil pump is electrically connected to a timing switch, and the timing switch is arranged on one side of the oil injection port and fixedly connected to the end of the positioning sleeve body.

[0019] The beneficial effects of adopting the above improvement scheme are as follows: By setting a timing switch, it is used to regularly turn on the micro oil pump to extract lubricating oil into the lubricating oil passage.

[0020] Furthermore, a baffle is arranged inside the diversion pipe. The baffle is in sealed contact with the end of the positioning sleeve body through the second sealing ring on its surface to form a sealed cavity.

[0021] The beneficial effects of adopting the above improvement scheme are as follows: By arranging the baffle in sealed contact with the positioning sleeve body in cooperation with the second sealing ring, it is used to construct a sealed cavity, and the sealed cavity is used to prevent internal fluid from invading.

[0022] Furthermore, a plurality of liquid guiding channels are arranged on the outer side of the baffle close to the second sealing ring. The liquid guiding channels are used to allow the fluid to pass through the baffle.

[0023] Furthermore, the diameter of the inlet of the liquid guiding channel on the side close to the positioning sleeve body is larger than the diameter of the outlet on the other side, forming an acceleration channel.

[0024] The beneficial effects of adopting the above improvement scheme are as follows: By arranging the liquid guiding channels, it is used to accelerate the fluid to pass through the baffle.

[0025] Compared with the prior art, the beneficial effects of a positioning sleeve with a spring seat and good anti-wear performance provided by the present utility model are as follows: By arranging a wear-resistant bushing, it is used to reduce the friction between the anti-fatigue spring and the valve core and the positioning sleeve body. By arranging a spring seat, it is used to connect the anti-fatigue spring and the valve core, so that the fluid output by the pump body presses to push the valve core away from the valve seat, preventing internal pollution caused by backflow when the fluid is output. By arranging an anti-fatigue spring to connect the spring seat and the valve core, it drives the valve core to expand and contract axially. By arranging a micro oil pump, it is used to extract the lubricating oil inside the oil storage bin and inject it into the contact surface inside the spring seat through the lubricating oil passage, further improving the service life of the components and reducing wear. By opening a diversion port and externally connecting a diversion pipe, the one-way output effect of the fluid is realized. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present utility model. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a structural schematic diagram of a positioning sleeve with a spring seat and good anti-wear performance;

[0028] Figure 2Schematic diagram of the baffle inside the diversion pipe;

[0029] In the attached drawings, the list of components represented by each label is as follows:

[0030] 10. Positioning sleeve body; 11. Pump body output channel; 12. Wear-resistant bushing; 13. Spring seat; 14. Anti-fatigue spring; 15. Spool; 16. Valve seat; 17. Lubricating oil channel; 18. Micro oil pump; 19. Oil storage bin; 20. Oil injection port; 21. Diversion port; 22. Diversion pipe; 23. Limit convex; 24. Sealing ring; 25. Baffle; 26. Second sealing ring; 27. Liquid guide channel. Specific implementation mode

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0032] As Figure 1 , shown in Figure 2, is an embodiment of a positioning sleeve with a spring seat and good anti-wear performance provided by the present utility model. In this embodiment, it includes a positioning sleeve body 10, the positioning sleeve body 10 is arranged inside the pump body output channel 11, the inner surface of the positioning sleeve body 10 is provided with a wear-resistant bushing 12, the spring seat 13 is arranged inside the positioning sleeve body 10, one side of the spring seat 13 is in contact with the wear-resistant bushing 12, and the other side is connected to the anti-fatigue spring 14. One end of the anti-fatigue spring 14 is connected to the spring seat 13, and the other end is connected to the spool 15. The spool 15 is in contact with the valve seat 16. The positioning sleeve body 10 is provided with a lubricating oil channel 17, a micro oil pump 18 is arranged inside the lubricating oil channel 17, the outside of the lubricating oil channel 17 is communicated with the oil storage bin 19, the oil storage bin 19 is provided with an oil injection port 20, 4 groups of diversion ports 21 are opened on the valve seat 16, and a diversion pipe 22 is detachably connected to the outside of the pump body output channel 11.

[0033] Among them, the wear-resistant bushing 12 is made of polytetrafluoroethylene material, which has good self-lubrication and wear resistance, and effectively reduces the friction with the spring seat.

[0034] During use, it is installed and connected to the pump body output channel 11 through the diversion pipe 22. When the pump body starts to work, the fluid flows forward in the pump body output channel 11, and the pressure of the fluid pushes the spool 15 to overcome the elastic force of the anti-fatigue spring 14, so that the diversion ports 21 on the valve seat 16 are completely opened, allowing the fluid to enter the diversion pipe 22 and be output through the liquid guide channel 27. At this time, the anti-fatigue spring 14 is in a compressed state, and the spring seat 13 and the positioning sleeve body 10 bear the compression force of the anti-fatigue spring 14; when the pump body stops working, at this time the fluid pressure is less than the elastic force of the anti-fatigue spring 14, and the anti-fatigue spring 14 drives the spool 15 to closely fit with the valve seat 16.

[0035] Among them, in the above technical solution, the positioning sleeve body 10 is made of high-strength alloy material and is arranged in a cylindrical shape on the inner wall of the pump body output channel 11.

[0036] Further, in the above technical solution, raised columns are provided at one end of the axis of the spring seat 13 and the axis of the valve core 15, and jacks are provided on the raised columns. The two ends of the anti-fatigue spring 14 are respectively fixedly connected to the spring seat 13 and the valve core 15 corresponding to the jacks.

[0037] Further, in the above technical solution, an internal thread is provided on the inner wall of the diversion pipe 22, and an external thread structure adapted to the internal thread is provided outside the pump body output channel 11 for fixed installation.

[0038] Further, in the above technical solution, a limit convex 23 is provided on the outer wall of the pump body output channel 11, and a sealing ring 24 is provided between the limit convex 23 and the diversion pipe 22.

[0039] Further, in the above technical solution, the oil outlet of the lubricating oil passage 17 is arranged on the side where the wear-resistant bushing 12 contacts the spring seat 13.

[0040] Further, in the above technical solution, the micro oil pump 18 is electrically connected to a timing switch. The timing switch is arranged on one side of the oil injection port 20 and is fixedly connected to the end of the positioning sleeve body 10.

[0041] Among them, a battery is provided inside the timing switch. The battery is used to supply power to the timing switch and the micro oil pump 18. And a sealing cover is detachably installed outside the oil injection port 20. Usually, in a production device that operates continuously for 24 hours, the micro oil pump 18 is set to start every 8 hours through the timing switch to inject lubricating oil into the contact surface to meet the lubrication requirements of the device during this period; and the diversion pipe 22 can be regularly disassembled to add supplementary lubricating oil into the oil storage bin 19 through the oil injection port 20. The lubricating oil is output to the contact surface through the micro oil pump 18 that is turned on regularly to form a thin oil film, which plays a role in lubrication and reducing wear.

[0042] Further, in the above technical solution, a baffle 25 is provided inside the diversion pipe 22. The baffle 25 is in sealed contact with the end of the positioning sleeve body 10 through the second sealing ring 26 on its surface to form a sealed cavity.

[0043] Further, in the above technical solution, a plurality of liquid guiding channels 27 are provided on the outer side of the baffle 25 close to the second sealing ring 26. The liquid guiding channels 27 are used to allow the fluid to pass through the baffle 25.

[0044] Further, in the above technical solution, the diameter of the inlet of the liquid guiding channel 27 on the side close to the positioning sleeve body 10 is larger than the diameter of the outlet on the other side, forming an acceleration channel.

[0045] Specifically, the principle of the present utility model is as follows: during use, it is installed and connected to the pump body output channel 11 through the diversion pipe 22. When the pump body starts to work, the fluid flows forward in the pump body output channel 11, and the pressure of the fluid pushes the valve core 15 to overcome the elastic force of the anti-fatigue spring 14, so that the diversion port 21 on the valve seat 16 is completely opened, allowing the fluid to enter the diversion pipe 22 and be output through the liquid guiding channel 27. At this time, the anti-fatigue spring 14 is in a compressed state, and the spring seat 13 and the positioning sleeve body 10 bear the compression force of the anti-fatigue spring 14; when the pump body stops working, at this time the fluid pressure is less than the elastic force of the anti-fatigue spring 14, and the anti-fatigue spring 14 drives the valve core 15 to closely fit with the valve seat 16.

Claims

1. A positioning sleeve with a spring seat having good wear resistance, characterized in that: The invention comprises a positioning sleeve body (10), wherein the positioning sleeve body (10) is arranged inside a pump body output channel (11), wherein the inner surface of the positioning sleeve body (10) is provided with a wear-resistant bushing (12), and a spring seat (13) is arranged inside the positioning sleeve body (10), wherein one side of the spring seat (13) contacts the wear-resistant bushing (12), and the other side is connected to an anti-fatigue spring (14), wherein one end of the anti-fatigue spring (14) is connected to the spring seat (13), and the other end is connected to a valve core (15), the valve core (15) is in contact with the valve seat (16), the positioning sleeve body (10) is provided with a lubricating oil passage (17), a micro oil pump (18) is provided inside the lubricating oil passage (17), the outside of the lubricating oil passage (17) is connected to an oil storage tank (19), an oil filling port (20) is provided on the oil storage tank (19), four groups of guide ports (21) are provided on the valve seat (16), and the outside of the pump body output channel (11) is detachably connected with a guide pipe (22).

2. A positioning sleeve with a spring seat having good wear resistance according to claim 1, characterized in that: The positioning sleeve body (10) is made of a high-strength alloy material and is provided on the inner wall of the pump body output channel (11) in a cylindrical shape.

3. A positioning sleeve with a spring seat having good wear resistance according to claim 2, characterized in that: The axis of the spring seat (13) and one end of the axis of the valve core (15) are both provided with raised columns, and the raised columns are both provided with insertion holes. The two ends of the anti-fatigue spring (14) correspond to the insertion holes and are fixedly connected to the spring seat (13) and the valve core (15) respectively.

4. A positioning sleeve with a spring seat having good wear resistance according to claim 3, characterized in that: The inner wall of the flow guide tube (22) is provided with an internal thread, and the outside of the pump body output channel (11) is provided with an external thread structure adapted to the internal thread for fixed installation.

5. A positioning sleeve with a spring seat having good wear resistance according to claim 4, characterized in that: The outer wall of the pump body output channel (11) is provided with a limiting protrusion (23), and a sealing ring (24) is provided between the limiting protrusion (23) and the flow guide tube (22).

6. A positioning sleeve with a spring seat having good wear resistance according to claim 5, characterized in that: The oil outlet of the lubricating oil passage (17) is arranged on the side where the wear-resistant bushing (12) contacts the spring seat (13).

7. A positioning sleeve with a spring seat having good wear resistance according to claim 6, characterized in that: The micro oil pump (18) is electrically connected to a timing switch, and the timing switch is arranged on one side of the oil filling port (20) and is fixedly connected to the end of the positioning sleeve body (10).

8. A positioning sleeve with a spring seat having good wear resistance according to claim 7, characterized in that: A baffle (25) is provided inside the flow guide tube (22), and the baffle (25) is in sealing contact with the end of the positioning sleeve body (10) via a second sealing ring (26) on the surface to form a sealed cavity.

9. A positioning sleeve with a spring seat having good wear resistance according to claim 8, characterized in that: The baffle plate (25) is provided with a plurality of groups of liquid conducting channels (27) on the outer side close to the second sealing ring (26), and the liquid conducting channels (27) are used to allow the fluid to pass through the baffle plate (25).

10. A positioning sleeve with a spring seat having good wear resistance according to claim 9, characterized in that: The inlet diameter of the liquid guiding channel (27) on one side close to the positioning sleeve body (10) is larger than the outlet diameter on the other side, thereby forming an acceleration channel.

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