CN220082212U

CN220082212U - Safety valve for pump

Info

Publication number: CN220082212U
Application number: CN202321182833.5U
Authority: CN
Inventors: 阮士云
Original assignee: Zhejiang Lixin Machinery Co ltd
Current assignee: Zhejiang Lixin Machinery Co ltd
Priority date: 2023-05-13
Filing date: 2023-05-13
Publication date: 2023-11-24
Anticipated expiration: 2033-05-13

Abstract

The utility model provides a safety valve for a pump. The utility model comprises a valve body, a valve core component and a mounting cavity arranged in the valve body, wherein the valve body is provided with a water inlet end and a water outlet end, the water inlet end, the mounting cavity and the water outlet end are internally communicated, the valve core component is used for controlling the water flow on-off of the water inlet end and the water outlet end, the valve core component comprises a valve body and a core, a valve core channel is arranged in the valve body, the two ends of the valve core channel are respectively communicated with the water inlet end and the water outlet end, and the core is positioned between the valve core channel and the water inlet end; the water outlet device comprises a valve body, a valve core assembly, a spring, a valve core assembly and a water outlet channel, wherein the valve body is connected with the valve core assembly through threads, the valve core assembly is connected with the valve core assembly through threads, and the valve core assembly is connected with the valve core assembly through threads. The safety valve not only effectively reduces the requirement on plastic materials and controls the production cost, but also greatly improves the convenience of disassembly and assembly of the valve body.

Description

Safety valve for pump

Technical Field

The present utility model relates to a relief valve, and more particularly, to a relief valve for a pump.

Background

The existing safety valve structure is shown in figure 5, and mainly comprises a valve sleeve a, wherein a mounting cavity d is arranged in the valve sleeve a, a valve core assembly e is arranged in the mounting cavity d, and a water inlet end b and a water outlet end c are arranged on the valve sleeve a; when the water pressure of the water inlet end b exceeds the preset pressure value of the valve core assembly e, the valve core assembly e can open a passage between the water inlet end b and the water outlet end c, and water of the water inlet end b can flow out of the water outlet end c, so that the aim of safe pressure relief is fulfilled.

Referring to fig. 5, in order to stably fix the valve core assembly e in the installation cavity d, a cover plate f is also arranged at the water outlet end c of the existing safety valve, the cover plate f and the valve sleeve a can be connected in a glue bonding or fastening manner, the cover plate f after glue bonding cannot be disassembled and assembled, and the cover plate f in the fastening manner has very strict requirements on plastic materials.

Therefore, the structure in the mounting valve needs to be redesigned, on one hand, the requirement on plastic materials is reduced, and the production cost is controlled; on the other hand, the assembly and disassembly are convenient.

Disclosure of Invention

In view of the above, the present utility model aims to provide a safety valve for a pump, which not only effectively reduces the requirement on plastic materials, but also greatly improves the convenience of disassembly and assembly of a valve body.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the safety valve for the pump comprises a valve body, a valve core component and a mounting cavity arranged in the valve body, wherein the valve body is provided with a water inlet end and a water outlet end, the water inlet end, the mounting cavity and the water outlet end are internally communicated, the valve core component is used for controlling the water flow on-off of the water inlet end and the water outlet end,

the valve core assembly comprises a valve body and a core, a valve core channel is arranged in the valve body, two ends of the valve core channel are respectively communicated with the water inlet end and the water outlet end, and the core is positioned between a channel port of the valve core channel, which is close to the water inlet end, and the water inlet end;

the novel water inlet valve comprises a valve body, and is characterized by further comprising a spring and a cover assembly, wherein the cover assembly comprises a cover body, the cover body is in threaded connection with the water outlet end, a water outlet channel is arranged in the cover body, two ends of the water outlet channel are respectively communicated with the water outlet end and an external space, the spring is arranged between the cover body and the valve core assembly, and the spring force is applied to the valve core assembly and enables the valve core to be used for blocking the water inlet end.

Through the technical scheme, firstly, the cover body and the water outlet end adopt the design scheme of threaded connection, the traditional connection mode of viscose glue and a buckle is abandoned, the disassembly and the assembly are more convenient, and the requirement on plastic materials is further lowered; secondly, the screw-in length between the cover body and the valve body can be controlled by rotating the cover body, and the elastic force of the spring to the valve core assembly can be adjusted finally, so that more application scene requirements can be met.

Preferably, the cover body is separately provided with an upper cover and a lower cover, the upper cover and the lower cover are both in threaded connection with the water outlet end, the lower cover is positioned at a position, close to one side of the spring, of the upper cover, and the upper cover is propped against the lower cover.

Through above-mentioned technical scheme, set up whole lid components of a whole that can function independently into upper cover and lower cover, when the upper cover is mutually supported with other external fittings, can not influence the lower cover and to the produced extrusion force size of spring, can install the lower cover in the valve body earlier, after the lower cover produces the extrusion force to the spring, install the upper cover in the valve body again, the extrusion force that the lower cover produced the spring will be more stable this moment.

Preferably, the end face of the lower cover, which is close to the upper cover, is provided with a driving hole.

Through above-mentioned technical scheme, can use external tool to insert in the drive hole, and then conveniently drive whole lower cover and rotate.

Preferably, the water outlet pipe is further included, the cover assembly further comprises a cover cap, the cover cap is in threaded connection with the end portion, away from the valve body, of the upper cover, a turned edge is arranged at the end portion of the water outlet pipe, the turned edge is clamped and fixed between the cover cap and the upper cover, and the end portion of the water outlet pipe is communicated with the water outlet channel.

Through above-mentioned technical scheme, set up the turn-ups of outlet pipe between block and upper cover, with block threaded connection in the upper cover again, the outlet pipe can be fixed in between block and the upper cover, and it is convenient to install, connects stably.

Preferably, the core comprises a core body, two ends of the core body are respectively a plugging end and a positioning end, the plugging ends are used for plugging against the water inlet ends, the positioning ends are abutted against the passage opening of the valve core passage close to the water inlet ends, a flow guiding notch is formed in the periphery of the positioning ends, and water in the water inlet ends can enter the valve core passage through the flow guiding notch.

Through the technical scheme, when the water pressure of the water inlet end is smaller than the elasticity of the spring to the valve body, the blocking end can be blocked against the water inlet end, and at the moment, water at the water inlet end cannot enter the valve core channel and the water outlet end; when the water pressure of the water inlet end is larger than the elasticity of the spring to the valve body, the blocking end is separated from the water inlet end, and water at the water inlet end enters the valve core channel and the water outlet end through the diversion notch; the safety valve has stable internal motion.

Preferably, the core further includes a guide post mounted at a positioning end of the core body, the guide post being capable of being mutually engaged with the valve core passage and guiding a moving direction of the core.

Through the technical scheme, the guide post can be matched with the valve core channel, the core is not easy to transversely displace, and the use stability is high; especially when the water pressure drops suddenly, the guide post can be matched with the valve core channel, and the core can be stably propped against the water inlet end.

Preferably, a plane groove is formed in the outer side wall of the upper cover.

Through above-mentioned technical scheme, the plane groove can make things convenient for external instrument to carry out the centre gripping, and then is convenient for rotate the upper cover.

Preferably, the water inlet pipe is further arranged, and the water inlet pipe is connected with the water inlet end in a threaded mode.

Through above-mentioned technical scheme, the dismouting between inlet tube and the inlet end is more convenient.

Drawings

FIG. 1 is a schematic view of a mounting structure of an embodiment;

FIG. 2 is a schematic cross-sectional view of an embodiment;

FIG. 3 is an exploded view of the structure of an embodiment;

FIG. 4 is a schematic view of the structure of the lower cover and the core in the embodiment;

fig. 5 is a schematic diagram of the basic structure of a prior art safety valve.

Reference numerals: a. a valve sleeve; b. a water inlet end; c. a water outlet end; d. a mounting cavity; e. a valve core assembly; f. a cover plate; 1. a valve body; 6. a spool passage; 7. a core; 8. a core; 9. plugging the end; 10. a positioning end; 11. a diversion notch; 12. a guide post; 13. a spring; 14. a cap assembly; 15. a cover body; 16. an upper cover; 17. a lower cover; 18. capping; 19. a water outlet channel; 20. a drive hole; 21. a water outlet pipe; 22. flanging; 23. a water inlet pipe.

Detailed Description

The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.

A safety valve for a pump, see fig. 1 and 4, comprises a valve body 1 and a valve core assembly e. A mounting cavity d is provided in the valve body 1. The two ends of the valve body 1 are respectively provided with a water inlet end b and a water outlet end c. The water inlet end b, the mounting cavity d and the water outlet end c are communicated with each other. The valve core component e is mainly used for controlling the water flow on-off of the water inlet end b and the water outlet end c.

For valve element assembly e:

referring to fig. 2 and 3, the valve core assembly e includes a valve body 1 and a core 7, a valve core channel 6 is provided in the valve body 1, two ends of the valve core channel 6 are respectively communicated with a water inlet end b and a water outlet end c, and the core 7 is located between a channel opening of the valve core channel 6 near the water inlet end b and the water inlet end b.

Referring to fig. 2, a spring 13 is further provided in the valve body 1, and the spring 13 is elastically applied to the valve cartridge assembly e.

Referring to fig. 2 and 3, the core 7 includes a core body 8, and two ends of the core body 8 are respectively a plugging end 9 and a positioning end 10. After the elastic force of the spring 13 is applied to the valve core assembly e, the blocking end 9 can be blocked against the water inlet end b. The positioning end 10 is propped against the valve core channel 6 and is close to the channel port of the water inlet end b, the periphery of the positioning end 10 is provided with a diversion notch 11, and water in the water inlet end b can enter the valve core channel 6 through the diversion notch 11.

Referring to fig. 2 and 4, the core 7 further includes a guide post 12, the guide post 12 being installed at the positioning end 10 of the core body 8, the guide post 12 being capable of being engaged with the core passage 6 and guiding the moving direction of the core 7.

Referring to fig. 2 and 3, the cover assembly 14 further includes a cover assembly 14, the cover assembly 14 includes a cover body 15, the cover body 15 is screwed to the water outlet end c, a water outlet channel 19 is disposed in the cover body 15, two ends of the water outlet channel 19 are respectively communicated with the water outlet end c and an external space of the safety valve, and the spring 13 is installed between the cover body 15 and the valve core assembly e.

The cover 15 is separately provided with an upper cover 16 and a lower cover 17, the upper cover 16 and the lower cover 17 are both in threaded connection with the water outlet end c, the lower cover 17 is positioned at a position of the upper cover 16 close to one side of the spring 13, and the upper cover 16 is abutted against the lower cover 17.

Referring to fig. 4, in order to facilitate rotation of the lower cover 17, the end surface of the lower cover 17, which is close to the upper cover 16, is provided with a driving hole 20.

To facilitate rotation of the upper cover 16, a planar slot (not shown) is provided in the outer sidewall of the upper cover 16.

In addition, referring to fig. 2 and 3, the cover assembly 14 further includes a water outlet pipe 21, the cover assembly 14 further includes a cap 18, the cap 18 is screwed on the end portion of the upper cover 16 facing away from the valve body 1, the end portion of the water outlet pipe 21 is provided with a flange 22, the flange 22 is clamped and fixed between the cap 18 and the upper cover 16, and the end portion of the water outlet pipe 21 is communicated with the water outlet channel 19.

A water inlet pipe 23 is also provided, and the water inlet pipe 23 is connected with the water inlet end b in a threaded manner.

In the actual installation process, the valve core assembly e is firstly installed in the installation cavity d, the spring 13 is sleeved on the valve body 1, the lower cover 17 is in threaded connection with the water outlet end c, an external tool can be inserted into the driving hole 20 of the lower cover 17, the matching depth between the lower cover 17 and the valve body 1 is adjusted, the upper cover 16 is in threaded connection with the water outlet end c, and then the end part of the water outlet pipe 21 is connected between the cap 18 and the upper cover 16.

In the actual use process, when the water pressure of the water inlet end b is smaller than the elastic force of the spring 13 on the valve body 1, the blocking end 9 can be blocked against the water inlet end b, and at the moment, the water of the water inlet end b cannot enter the valve core channel 6 and the water outlet end c. When the water pressure of the water inlet end b is larger than the elastic force generated by the spring 13 on the valve body 1, the blocking end 9 is separated from the water inlet end b, and water of the water inlet end b enters the valve core channel 6 and the water outlet end c through the diversion notch 11; the safety valve has stable internal motion.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims

1. The utility model provides a relief valve for pump, includes valve body (1), case subassembly (e), sets up installation cavity (d) in valve body (1), be equipped with on valve body (1) into water end (b), play water end (c), into water end (b), installation cavity (d), play water end (c) three inside communicate with each other, case subassembly (e) are used for controlling the rivers break-make of water end (b) and play water end (c), characterized by:

the valve core assembly (e) comprises a valve body (1) and a core (7), a valve core channel (6) is arranged in the valve body (1), two ends of the valve core channel (6) are respectively communicated with a water inlet end (b) and a water outlet end (c), and the core (7) is positioned between a channel opening of the valve core channel (6) close to the water inlet end (b) and the water inlet end (b);

still include spring (13), lid subassembly (14) include lid (15), lid (15) threaded connection in go out water end (c), be equipped with in lid (15) and go out water passageway (19), go out water passageway (19) both ends respectively with go out water end (c), outside space communicate with each other, spring (13) install in lid (15) with between case subassembly (e), spring (13) elasticity is exerted in case subassembly (e) and is made core (7) are used for the jam advance water end (b).

2. A safety valve for a pump according to claim 1, characterized in that: the cover body (15) is separately arranged to be an upper cover (16) and a lower cover (17), the upper cover (16) and the lower cover (17) are both in threaded connection with the water outlet end (c), the lower cover (17) is positioned at a position, close to one side of the spring (13), of the upper cover (16), and the upper cover (16) is abutted against the lower cover (17).

3. A safety valve for a pump according to claim 2, characterized in that: the end face of the lower cover (17) close to the upper cover (16) is provided with a driving hole (20).

4. A safety valve for a pump according to claim 2, characterized in that: still include outlet pipe (21), lid subassembly (14) still include block (18), block (18) threaded connection in upper cover (16) deviate from the tip position of valve body (1), the tip of outlet pipe (21) is equipped with turn-ups (22), turn-ups (22) are fixed in by the centre gripping cap (18) with between upper cover (16), outlet pipe (21) tip with go out water passageway (19) and communicate with each other.

5. A safety valve for a pump according to any one of claims 1 to 4, characterized in that: the core (7) comprises a core body (8), two ends of the core body (8) are respectively provided with a blocking end (9) and a positioning end (10), the blocking end (9) is used for blocking against the water inlet end (b), the positioning end (10) is propped against the valve core channel (6) to be close to the channel opening of the water inlet end (b), a diversion notch (11) is formed in the periphery of the positioning end (10), and water in the water inlet end (b) can enter the valve core channel (6) through the diversion notch (11).

6. The safety valve for a pump according to claim 5, wherein: the core (7) further comprises a guide post (12), the guide post (12) is mounted at the positioning end (10) of the core body (8), and the guide post (12) can be mutually matched with the valve core channel (6) and guide the moving direction of the core (7).

7. A safety valve for a pump according to claim 2, characterized in that: a plane groove is formed in the outer side wall of the upper cover (16).

8. A safety valve for a pump according to any one of claims 1 to 4, characterized in that: the water inlet pipe (23) is further included, and the water inlet pipe (23) is connected with the water inlet end (b) in a threaded mode.