CN214839071U

CN214839071U - Check valve

Info

Publication number: CN214839071U
Application number: CN202121126277.0U
Authority: CN
Inventors: 刘志新
Original assignee: TIANJIN KAIFA VALVE CO Ltd
Current assignee: TIANJIN KAIFA VALVE CO Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-11-23
Anticipated expiration: 2031-05-25

Abstract

The utility model provides a check valve, which belongs to the technical field of check valves, the check valve comprises a check valve, the left end and the right end of the check valve are fixedly connected with connectors, a plurality of groups of clamping mechanisms are arranged in the two connectors, when the check valve needs to be installed, a hand-held pulling block can be pulled outwards, at the moment, the two ends of a pipeline are respectively clamped into a clamping groove after being pulled, at the moment, the pulling block can be loosened, at the moment, the self elasticity of a clamping spring is inwards contracted, so that a clamping clamp is inwards contracted to clamp the pipeline in the clamping groove, thereby completing the connection of the pipeline, and when the butt joint is completed, the connection of the check valve on the pipeline can be more tight through a fastening mechanism, thereby leading the connection of the pipeline and the check valve to be more tight, solving the problems of time and labor waste in pipeline installation, and leading the pipeline installation to be simple and many, thereby improving efficiency and reducing costs.

Description

Check valve

Technical Field

The utility model belongs to the technical field of the check valve, concretely relates to check valve.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water. The check valve and the stop valve are combined for use, and the safety isolation effect can be achieved.

However, most of the existing check valves are connected with the pipeline by using screws and the like, so that the connection efficiency of the pipeline is obviously reduced, the pipeline cannot be quickly connected and controlled, time and labor are wasted, the efficiency is reduced, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve, the erection joint that aims at solving among the prior art wastes time and energy and not swift enough problem.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a check valve, includes the check valve, the equal fixedly connected with connector in both ends about the check valve, two all be equipped with multiunit latch mechanism in the connector, every group latch mechanism all includes the joint hole, draws and draws piece, joint groove, joint spring, joint pole and chucking pincers, the circumference surface of connector is seted up in the joint hole, the left end of connector is seted up in the joint groove, the joint pole activity is pegged graft in the joint is downthehole, chucking pincers fixed connection is in the lower extreme of joint pole, and the joint pole is located the chucking pincers, draw the upper end of piece fixed connection in the joint pole, the lower extreme fixed connection of joint spring is in the circumference surface of connector and draw the lower extreme of drawing the piece, and the circumference surface of joint pole, two are located to the joint spring housing the end of keeping away from mutually of connector all is equipped with a set of fastening device.

As a preferred scheme of the utility model, each group of fastening mechanisms comprises a supporting block, a fastening spring, a motion arm, a fastening clamp, a fixed block, a clamping bead, a limiting block, a limiting groove, a clamping bead groove, a reset square hole, a reset block, a reset rod and a switching groove, wherein the number of the motion arm, the fastening clamp, the reset block, the reset square hole, the fastening spring, the clamping bead and the clamping bead groove is two, the number of the limiting groove and the limiting block is four, the supporting block is fixedly connected with the right end of the connector, the fixed block is fixedly connected with the left end of the supporting block, the two motion arms are respectively and movably hinged with the upper end and the lower end of the fixed block through a hinge shaft, the two fastening clamps are respectively and fixedly connected with the left end of the motion arm, the two clamping beads are respectively and fixedly connected with the front ends of the two motion arms, the far ends of the two fastening springs are respectively and fixedly connected with the near ends of the two motion arms, and the end that is close to mutually of two fastening spring is fixed connection respectively in the upper and lower both ends of supporting shoe, two the square hole that resets all sets up in the front end of supporting shoe, two reset lever activity respectively is pegged graft in two square holes that reset, two reset block fixed connection respectively in the front end of two reset lever, the switching groove is set up in the rear end of supporting shoe, two the preceding inner wall in switching groove is all set up in to joint pearl groove, two the joint pearl activity respectively is pegged graft in two joint pearl inslots, four the inner wall about two square holes that reset is respectively set up in to the spacing groove, four the stopper is fixed connection in the inner wall about the reset lever respectively, and four stoppers are sliding connection respectively in four spacing inslots.

As a preferred scheme, the circumference fixed surface of check valve is connected with the maintenance pipe, the activity of the upper end of maintenance pipe is pegged graft and is had the access cover, a plurality of screw holes have been seted up to the upper end of access cover, and is a plurality of equal threaded connection has the bolt in the screw hole, and is a plurality of equal threaded connection has the nut on the circumference surface of bolt.

As an optimal scheme of the utility model, the upper end fixedly connected with handle of access cover, the circumference fixed surface of check valve is connected with the water pressure gauge.

As an optimized scheme of the utility model, the fixed surface of circumference of check valve is connected with articulates the hook.

As an optimized scheme of the utility model, the joint inslot fixedly connected with sealing rubber area.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in this scheme, when the check valve is installed to needs, can draw the handheld piece of pulling and outwards draw and draw, draw the back this moment with two joint to joint inslot respectively of pipeline, alright this moment in order will draw and draw the piece and loosen, this moment because the inside shrink of elasticity of joint spring self, thereby make the pipeline of chucking pincers to the inside shrink joint inslot, thereby accomplish the connection to the pipeline, and when accomplishing the butt joint, can be inseparabler with the check valve in the connection of pipeline through fastening device, thereby make pipeline and check valve be connected inseparabler, the problem that the installation pipeline of the very convenient solution of such design wastes time and energy, make the simple many of installation of pipeline, thereby raise the efficiency and reduce cost.

2. In this scheme, when needs overhaul in to the check valve, can be through outside rotatory nut to rotate out the bolt again after rotatory completion, this moment alright with open the access cover, can be fairly simple obtain an maintenance to the problem of check valve.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a perspective view of the present invention;

fig. 2 is a partial enlarged view of a portion a in fig. 1 according to the present invention;

FIG. 3 is a sectional top view of the present invention;

fig. 4 is a side cross-sectional view of the present invention.

In the figure: 1. a check valve; 2. repairing the pipe; 3. an access cover; 4. a bolt; 5. a nut; 6. a handle; 7. a connector; 8. sealing the rubber belt; 9. clamping a spring; 10. a clamping and connecting rod; 11. a pulling block; 12. a clamping groove; 13. a clamping pliers; 14. a water pressure gauge; 15. a hook is hooked; 16. a support block; 17. a fastening spring; 18. a motion arm; 19. fastening pliers; 20. a fixed block; 21. clamping the beads; 22. a reset block; 23. a reset rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, the present invention provides the following technical solutions:

the utility model provides a check valve, including check valve 1, the equal fixedly connected with connector 7 in both ends about check valve 1, all be equipped with multiunit latch mechanism in two connectors 7, every group latch mechanism all includes the joint hole, draw and drag piece 11, joint groove 12, joint spring 9, joint pole 10 and chucking pincers 13, the joint hole is seted up in the circumferential surface of connector 7, joint groove 12 is seted up in the left end of connector 7, joint pole 10 activity is pegged graft in the joint hole, chucking pincers 13 fixed connection is in the lower extreme of joint pole 10, and joint pole 10 is located chucking pincers 13, draw and drag piece 11 fixed connection in the upper end of joint pole 10, the lower extreme fixed connection of joint spring 9 draws the lower extreme of piece 11 in the circumferential surface of connector 7 and draw, and joint spring 9 cover is located the circumferential surface of joint pole 10, the end of keeping away from mutually of two connectors 7 all is equipped with a set of fastening device, each group fastening device includes supporting shoe 16, The fixing device comprises a fastening spring 17, moving arms 18, fastening pincers 19, a fixing block 20, clamping beads 21, a limiting block, a limiting groove, clamping bead grooves, a reset square hole, a reset block 22, a reset rod 23 and a switching groove, wherein the moving arms 18, the fastening pincers 19, the reset block 22, the reset rod 23, the reset square hole, the fastening spring 17, the clamping beads 21 and the clamping bead grooves are respectively provided with two, the number of the limiting groove and the limiting block is four, the supporting block 16 is fixedly connected with the right end of a connector 7, the fixing block 20 is fixedly connected with the left end of the supporting block 16, the two moving arms 18 are respectively and movably hinged with the upper end and the lower end of the fixing block 20 through hinge shafts, the two fastening pincers 19 are respectively and fixedly connected with the left end of the moving arms 18, the two clamping beads 21 are respectively and fixedly connected with the front ends of the two moving arms 18, the far ends of the two fastening springs 17 are respectively and fixedly connected with the near ends of the two moving arms 18, and the near ends of the two fastening springs 17 are respectively and fixedly connected with the upper end and the lower end of the supporting block 16, two square holes that reset all set up in the front end of supporting shoe 16, two release link 23 activity respectively are pegged graft in two square holes that reset, two release link 22 respectively fixed connection in the front end of two release link 23, the switching groove is seted up in the rear end of supporting shoe 16, two joint pearl grooves are all seted up in the preceding inner wall in switching groove, two joint pearl 21 activity respectively are pegged graft in two joint pearl inslots, inner wall about two square holes that reset are seted up respectively in four spacing grooves, four stopper difference fixed connection are in inner wall about release link 23, and four stoppers difference sliding connection are in four spacing inslots.

In the specific embodiment of the present invention, when the check valve 1 needs to be installed, the hand-held pulling block 11 can be pulled and pulled outwards, at this time, both ends of the pipeline are respectively clamped into the clamping grooves 12 after pulling, at this time, the pulling block 11 can be loosened, at this time, the clamping spring 9 contracts inwards due to its own elasticity, so that the clamping pliers 13 contracts inwards and clamps the pipeline in the clamping grooves 12, thereby completing the connection of the pipeline, at this time, the reset block 22 can be pressed inwards and the reset rod 23 can be pressed inwards, thereby the clamping bead 21 is extruded out of the clamping bead groove, at this time, due to the outward expansion of the elasticity of the clamping spring 17, the moving arm 18 can be pushed outwards and does circular motion, and the clamping pliers 19 can be pushed till the clamping is clamped onto the circumferential surface of the pipeline installed in 1, thereby the connection between 1 and the pipeline is tighter, when the disassembly is needed, the moving arm 18 is only needed to be pressed inwards and the clamping bead 21 is clamped into the clamping bead groove, the pipeline is disassembled, the problem that the pipeline is time-consuming and labor-consuming to install is solved very conveniently through the design, the pipeline is simple and many to install, the efficiency is improved, and the cost is reduced.

Referring to fig. 2, the check valve 1 is fixedly connected to a repair pipe 2 on a circumferential surface thereof, an access cover 3 is movably inserted into an upper end of the repair pipe 2, a plurality of threaded holes are formed in an upper end of the access cover 3, bolts 4 are screwed into the threaded holes, and nuts 5 are screwed onto circumferential surfaces of the bolts 4.

In this embodiment: when needing to overhaul in the check valve 1, can be through outside rotatory nut 5 to rotate out bolt 4 again after rotatory the completion, alright this moment in order to open access cover 3, can obtain an maintenance to the problem of check valve 1 more simply.

Referring to fig. 3, a handle 6 is fixedly connected to the upper end of the access cover 3.

In this embodiment: the access cover 3 can be opened more quickly by the handle 6, and the movement of the check valve 1 can be made relatively convenient by the handle 6.

Specifically referring to fig. 2, a water pressure gauge 14 is fixedly connected to the circumferential surface of the check valve 1.

In this embodiment: the water pressure in the check valve 1 can be detected by the water pressure gauge 14 so that the water pressure in the check valve 1 is monitored.

Specifically referring to fig. 1, a catching hook 15 is fixedly connected to the circumferential surface of the check valve 1.

In this embodiment: the hanging hook 15 can be hung on a wall or a hook, so that the storage of the hanging hook 15 is facilitated.

Specifically referring to fig. 2, a sealing rubber band 8 is fixedly connected in the clamping groove 12.

In this embodiment: the sealing performance of the pipeline can be improved through the clamping groove 12, and the connection quality is saved.

The utility model discloses a theory of operation and use flow:

when the check valve 1 needs to be installed, the hand-held pulling block 11 can be pulled outwards, at the moment, two ends of a pipeline are clamped into the clamping grooves 12 respectively after the pulling, the pulling block 11 can be loosened, at the moment, the clamping spring 9 contracts inwards due to the elasticity of the clamping spring 9, the clamping pliers 13 contracts inwards and clamps the pipeline in the clamping grooves 12, so that the pipeline is connected, at the moment, the reset block 22 can be extruded inwards and the reset rod 23 can be extruded inwards, so that the clamping balls 21 are extruded out of the clamping ball grooves, at the moment, the movement arms 18 are pushed outwards and do circular motion due to the outward expansion of the elasticity of the clamping spring 17, the clamping pliers 19 are pushed till the clamping is clamped to the circumferential surface of the pipeline installed in the check valve 1, so that the check valve 1 is connected with the pipeline more tightly, when the disassembly is needed, the movement arms 18 are extruded inwards and the clamping balls 21 are clamped into the clamping ball grooves, thereby accomplish the dismantlement to the pipeline, the installation pipeline of the very convenient solution of such design wastes time and energy the problem, make the simple many of installation of pipeline, when needs overhaul in to check valve 1, can be through outside rotatory nut 5, and rotate out bolt 4 again after rotatory completion, alright this moment in order to open access cover 3, can be simpler obtain an maintenance to check valve 1's problem, can let opening of access cover 3 more swift through handle 6, and can make check valve 1's removal relatively convenient through handle 6, can detect the water pressure in check valve 1 through water pressure gauge 14, can articulate to wall or couple department through articulating hook 15, can make the leakproofness of pipeline obtain a promotion through joint groove 12.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-return valve comprising a non-return valve (1), characterized in that: the left end and the right end of the check valve (1) are fixedly connected with connectors (7), a plurality of groups of clamping mechanisms are arranged in the connectors (7), each group of clamping mechanisms comprises a clamping hole, a pulling block (11), a clamping groove (12), a clamping spring (9), a clamping rod (10) and clamping pincers (13), the clamping hole is formed in the circumferential surface of the connector (7), the clamping groove (12) is formed in the left end of the connector (7), the clamping rod (10) is movably inserted into the clamping hole, the clamping pincers (13) are fixedly connected to the lower end of the clamping rod (10), the clamping rod (10) is located in the clamping pincers (13), the pulling block (11) is fixedly connected to the upper end of the clamping rod (10), the lower end of the clamping spring (9) is fixedly connected to the circumferential surface of the connector (7) and the lower end of the pulling block (11), and the clamping spring (9) is sleeved on the circumferential surface of the clamping rod (10), and two far ends of the connectors (7) are provided with a group of fastening mechanisms.

2. A check valve as claimed in claim 1, wherein: each group of fastening mechanisms comprises a supporting block (16), a fastening spring (17), a moving arm (18), fastening pincers (19), a fixing block (20), a clamping bead (21), a limiting block, a limiting groove, a clamping bead groove, a reset square hole, a reset block (22), a reset rod (23) and a transfer groove, the number of the moving arm (18), the number of the fastening pincers (19), the number of the reset block (22), the number of the reset rod (23), the number of the reset square hole, the number of the fastening spring (17), the number of the clamping bead (21) and the number of the clamping bead groove are four, the supporting block (16) is fixedly connected to the right end of the connector (7), the fixing block (20) is fixedly connected to the left end of the supporting block (16), the two moving arms (18) are movably hinged to the upper end and the lower end of the fixing block (20) through hinge shafts respectively, the two fastening pincers (19) are fixedly connected to the left end of the moving arm (18) respectively, the two clamping beads (21) are respectively and fixedly connected to the front ends of the two moving arms (18), the far ends of the two fastening springs (17) are respectively and fixedly connected to the near ends of the two moving arms (18), the near ends of the two fastening springs (17) are respectively and fixedly connected to the upper end and the lower end of the supporting block (16), the two reset square holes are formed in the front ends of the supporting block (16), the two reset rods (23) are respectively and movably inserted into the two reset square holes, the two reset blocks (22) are respectively and fixedly connected to the front ends of the two reset rods (23), the transfer groove is formed in the rear end of the supporting block (16), the two clamping bead grooves are formed in the front inner wall of the transfer groove, the two clamping beads (21) are respectively and movably inserted into the two clamping bead grooves, the four limiting grooves are respectively formed in the left inner wall and the right inner wall of the two reset square holes, four the stopper is fixed connection respectively in the inner wall about release link (23), and four stopper sliding connection respectively in four spacing inslots.

3. A check valve as claimed in claim 2, wherein: the utility model discloses a check valve, including check valve (1), the circumference surface fixedly connected with of check valve (1) repairs pipe (2), the upper end activity of repairing pipe (2) is pegged graft and is had access cover (3), a plurality of screw holes have been seted up to the upper end of access cover (3), and is a plurality of equal threaded connection has bolt (4) in the screw hole, and is a plurality of equal threaded connection has nut (5) on the circumference surface of bolt (4).

4. A check valve as claimed in claim 3, wherein: the circumference surface fixedly connected with water pressure gauge (14) of check valve (1), the upper end fixedly connected with handle (6) of access cover (3).

5. A check valve according to claim 4, wherein: the circumferential surface of the check valve (1) is fixedly connected with a hanging hook (15).

6. A check valve according to claim 5, wherein: and a sealing rubber belt (8) is fixedly connected in the clamping groove (12).