CN214119134U

CN214119134U - Reversing valve safety seal structure

Info

Publication number: CN214119134U
Application number: CN202022170221.7U
Authority: CN
Inventors: 于亚东; 陈忠
Original assignee: Wuxi Biendel Technology Co ltd
Current assignee: Wuxi Biendel Technology Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-09-03
Anticipated expiration: 2030-09-28

Abstract

The utility model is suitable for the technical field of reversing valves, and provides a reversing valve safety sealing structure, which comprises a fixing component, a sealing component and an air tightness detection component, wherein the fixing component comprises a valve body, the valve body is symmetrically provided with two reversing holes along a central line, one end of the valve body is rotatably provided with a valve core, one end of the valve core is fixedly provided with a control device, the sealing component comprises a sealing washer, a sealing groove is arranged in the reversing hole, the sealing washer is embedded in the sealing groove, the air tightness detection component comprises a detection port, one end of the valve body is symmetrically provided with two detection ports along the central line, a spring is arranged in the detection port, a transmission rod is sleeved in the spring, one end of the transmission rod, which is far away from the valve body, is fixedly provided with a piston, the utility model realizes that the air tightness of the sealing structure can be detected at any time, and avoids the reduction of the sealing performance after long-time use, can cause the pipeline to reveal, if not change seal ring in time can reduce the life's of valve body problem.

Description

Reversing valve safety seal structure

Technical Field

The utility model belongs to the switching-over valve field especially relates to a switching-over valve safety seal structure.

Background

The reversing valve is a direction control valve with more than two flow forms and more than two oil ports, is a valve for realizing communication, cutting off and reversing of hydraulic oil flow, pressure unloading and sequential action control, is a direction control valve depending on the relative movement of a valve core and a valve body, and has two types of a rotary valve type and a slide valve type, the valve core is divided into two-position, three-position and the like according to the number of working positions of the valve core staying in the valve body, the valve core is divided into two-way, three-way, four-way, six-way and the like according to the number of oil ways connected with the valve body, and the modes of operating the valve core to move comprise manual, motor-driven, electric, hydraulic, electrohydraulic and the like.

The leakproofness of switching-over valve has decided the life of device, and current switching-over valve adopts seal ring's mode to provide sealed effect more, nevertheless after long-time the use, its leakproofness reduces, can cause the pipeline to reveal, if not in time change seal ring can reduce the life of valve body.

SUMMERY OF THE UTILITY MODEL

The utility model provides a switching-over valve safety seal structure aims at solving the leakproofness of switching-over valve and has decided the life of device, and the mode that current switching-over valve adopted seal ring more provides sealed effect, nevertheless after long-time the use, its leakproofness reduces, can cause the pipeline to reveal, if not in time change seal ring can reduce the life's of valve body problem.

The utility model discloses a realize like this, a switching-over valve safety seal structure, including fixed subassembly, seal assembly and airtight determine module, fixed subassembly includes the valve body, two switching-over holes are seted up along the central line symmetry to the valve body, valve body one end is rotated the installation case, case one end fixed mounting controlling means, seal assembly includes seal ring, set up the seal groove in the switching-over hole, it has seal ring to inlay in the seal groove, airtight determine module is including detecting the mouth, valve body one end is seted up two detection mouths along the central line symmetry, be equipped with the spring in the detection mouth, the transfer line is established to the spring endotheca, the one end fixed mounting piston of valve body is kept away from to the transfer line.

Preferably, a fixing hole is formed in one end of the valve body, a threaded rod is arranged in the fixing hole and meshed with the fixing hole, one end of the threaded rod is fixedly connected with the valve core, and a turntable is fixedly mounted at one end, far away from the valve core, of the threaded rod.

Preferably, the L-shaped support is fixedly installed at one end of the valve body, the magnet sheet is fixedly installed at one end of the L-shaped support, and the magnet sheet is magnetically connected with the installation table.

Preferably, a sealing opening is formed in the valve body, a sealing block is adhered to one end of the valve core through special glue, and the sealing block is connected with the sealing opening in a sliding mode.

Preferably, the detachable installation closing plate of switching-over hole one end, the connecting pipe is established to the closing plate endotheca, the connecting pipe and the closing plate wedging, the one end laminating seal ring of closing plate is kept away from to the connecting pipe.

Preferably, an external thread is processed at one end of the connecting pipe, a pipe hoop is sleeved at one end of the connecting pipe, the pipe hoop is meshed with the connecting pipe, and a threaded gasket is sleeved at one end, connected with the sealing plate, of the pipe hoop.

Preferably, threaded through holes are formed in four corners of the sealing plate, threaded blind holes are formed in one end of the valve body, fastening bolts are arranged in the threaded through holes, and the fastening bolts are meshed with the threaded blind holes.

Compared with the prior art, the beneficial effects of the utility model are that: the safety sealing structure of the reversing valve of the utility model is provided with the sealing detection component, when the air tightness of the reversing valve needs to be detected, the valve core is closed, the reversing hole is aligned through the air pump, further, the valve body is inflated, the internal air pressure is increased, so that the piston drives the transmission rod to slide in the detection port, the detection port is blocked by the piston, the spring is in a compressed state at the moment, the gas is prevented from leaking out through the detection port, further, when the sealing washer is damaged, the air pressure in the valve body is reduced, so that the transmission rod slides downwards under the action of the spring, the air tightness in the valve body can be detected, the problem that the service life of the device is determined by the sealing performance of the reversing valve is solved, the existing reversing valve mostly adopts a sealing gasket mode to provide sealing effect, and after long-time use, the leakproofness of the valve is reduced, the pipeline leakage can be caused, and the service life of the valve body can be reduced if the sealing washer is not replaced timely.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the valve body of the present invention;

FIG. 3 is a schematic structural view of a sealing plate of the present invention;

1. the valve comprises a valve body, 2, a fastening bolt, 3, a pipe hoop, 4, a connecting pipe, 5, a sealing plate, 6, an L-shaped bracket, 7, a transmission rod, 8, a threaded rod, 9, a rotary table, 10, a spring, 11, a piston, 12, a valve core, 13, a sealing block, 14 and a sealing washer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a switching-over valve safety seal structure, including fixed subassembly, seal assembly and airtight detection subassembly, fixed subassembly includes valve body 1, two switching-over holes are seted up along the central line symmetry to valve body 1, 1 one end of valve body rotates

installation case

12, 12 one end fixed mounting controlling means of case, seal assembly includes seal ring 14, the downthehole seal groove of seting up of switching-over, it has seal ring 14 to inlay in the seal groove, airtight detection subassembly is including detecting the mouth, two detection mouths are seted up along the central line symmetry to 1 one end of valve body, be equipped with spring 10 in the detection mouth, transfer line 7 is established to the 10 endotheca of spring, transfer line 7 keeps away from the one end fixed mounting piston 11 of valve body 1.

In this embodiment, when the reversing valve is needed, the external pipe is sleeved on one end of the connecting pipe 4, and then the pipe hoop 3 is rotated, so that the pipe hoop 3 fixedly connects the external pipe with the connecting pipe 4, because the pipe hoop 3 has good sealing effect, the sealing performance of the connecting end of the valve body 1 is improved, the confining effect of the pipe hoop 3 is improved by sleeving a threaded gasket on one end of the pipe hoop 3 connected with the sealing plate 5, the rotary disc 9 is rotated, the rotary disc 9 is fixedly connected with the threaded rod 8, so that the rotary disc 9 drives the threaded rod 8 to rotate in the fixing hole, and further the valve core 12 can be rotated, when the valve core 12 rotates to the fixing position, because the threaded rod 8 is meshed with the fixing hole, the valve core 12 is effectively placed to be loose, and the purpose of conveniently fixing the valve core 12 is achieved, the sealing structure of the existing reversing valve at the connecting part of the valve core 12 and the valve body 1 is weaker, and a sealing block 13 is pasted on one end of the valve core 12 through special glue, the sealing block 13 is made of rubber materials, has high waterproofness, improves the air tightness of the valve body 1, enables liquid to leak through a gap of the valve core 12 when the valve body 1 is reversed, closes the valve core 12 when the air tightness of the reversing valve needs to be detected, aims at a reversing hole through an air pump, further inflates the valve body 1, increases the internal air pressure, enables the piston 11 to drive the transmission rod 7 to slide in the detection port, blocks the detection port, the spring 10 is in a compression state at the moment, prevents gas from leaking through the detection port, further, when the sealing washer 14 is damaged, reduces the air pressure in the valve body 1, enables the transmission rod 7 to slide downwards under the action of the spring 10, can detect the air tightness in the valve body 1, solves the problem that the tightness of the reversing valve determines the service life of the device, the existing reversing valve mostly adopts the sealing washer 14 to provide sealing effect, however, after long-time use, its leakproofness reduces, can cause the pipeline to reveal, if not in time change seal ring 14 can reduce valve body 1's life's problem, when detecting out seal ring 14's gas tightness and reduce or damage, twist and move fastening bolt 2, make fastening bolt 2 break away from the screw thread blind hole, can dismantle closing plate 5, and then can take out inside seal ring 14 and change, reached the purpose of convenient to detach closing plate 5.

Furthermore, a fixing hole is formed in one end of the valve body 1, a threaded rod 8 is arranged in the fixing hole, the threaded rod 8 is meshed with the fixing hole, one end of the threaded rod 8 is fixedly connected with the valve element 12, and the end, far away from the valve element 12, of the threaded rod 8 is fixedly provided with the turntable 9.

In this embodiment, when needing to use the switching-over valve, rotate carousel 9, carousel 9 and threaded rod 8 fixed connection for carousel 9 drives threaded rod 8 and rotates in the fixed orifices, and then can rotate case 12, when case 12 rotated fixed position, because threaded rod 8 and fixed orifices meshing, it is not hard up to place case 12 effectively, has reached the purpose of being convenient for fixed case 12.

Furthermore, an L-shaped support 6 is fixedly installed at one end of the valve body 1, a magnet piece is fixedly installed at one end of the L-shaped support 6, and the magnet piece is magnetically connected with the installation table.

In the present embodiment, the valve body 1 can be mounted on the table by fixedly mounting the L-shaped bracket 6 at one end of the valve body 1, and the valve body 1 can be fixed on the table by fixedly mounting the magnet piece at one end of the L-shaped bracket 6, thereby achieving the purpose of fixing the valve body 1.

Furthermore, a sealing opening is formed in the valve body 1, a sealing block 13 is adhered to one end of the valve core 12 through special glue, and the sealing block 13 is connected with the sealing opening in a sliding mode.

In the embodiment, the sealing structure of the existing reversing valve at the joint of the valve core 12 and the valve body 1 is weaker, the sealing block 13 is adhered to one end of the valve core 12 through special glue, the sealing block 13 is made of rubber materials, the waterproof performance is higher, the air tightness of the valve body 1 is improved, and liquid leaks through a gap of the valve core 12 when the valve body 1 is reversed.

Further, the detachable installation closing plate 5 of switching-over hole one end, connecting pipe 4 is established to the closing plate 5 endotheca, and connecting pipe 4 and closing plate 5 wedging, the one end laminating seal ring 14 of closing plate 5 is kept away from to connecting pipe 4.

In this embodiment, through laminating sealing washer 14 in the one end of connecting pipe 4 keeping away from sealing plate 5, sealing washer 14 fills the gap between connecting pipe 4 and sealing plate 5, avoids the gas or the liquid in valve body 1 to reveal through the gap, has improved the gas tightness of valve body 1 junction effectively.

Furthermore, an external thread is processed at one end of the connecting pipe 4, a pipe hoop 3 is sleeved at one end of the connecting pipe 4, the pipe hoop 3 is meshed with the connecting pipe 4, and a threaded gasket is sleeved at one end, connected with the sealing plate 5, of the pipe hoop 3.

In this embodiment, when needing to use the switching-over valve, locate 4 one ends of connecting pipe with external pipeline cover, and then rotate ferrule 3, make ferrule 3 with external pipeline and 4 fixed connections of connecting pipe, because ferrule 3 has good sealed effect, be favorable to the improvement of valve body 1 link leakproofness, establish the threaded gasket through the pot head of being connected at ferrule 3 and closing plate 5, improved the effect of confining of ferrule 3.

Furthermore, threaded through holes are formed in four corners of the sealing plate 5, threaded blind holes are formed in one end of the valve body 1, fastening bolts 2 are arranged in the threaded through holes, and the fastening bolts 2 are meshed with the threaded blind holes.

In this embodiment, when detecting that the air tightness of the sealing gasket 14 is reduced or damaged, the fastening bolt 2 is screwed to separate the fastening bolt 2 from the threaded blind hole, so that the sealing plate 5 can be detached, and the sealing gasket 14 inside can be taken out for replacement, thereby achieving the purpose of facilitating the detachment of the sealing plate 5.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a switching-over valve safety seal structure, includes fixed subassembly, seal assembly and airtight detection subassembly, fixed subassembly includes valve body (1), two switching-over holes are seted up along the central line symmetry in valve body (1), valve body (1) one end is rotated installation case (12), case (12) one end fixed mounting controlling means, seal assembly includes seal ring (14), set up the seal groove in the switching-over hole, it has seal ring (14), its characterized in that to inlay in the seal groove: the airtightness detection assembly comprises detection ports, two detection ports are symmetrically formed in one end of the valve body (1) along the central line, a spring (10) is arranged in each detection port, a transmission rod (7) is sleeved in each spring (10), and a piston (11) is fixedly installed at one end, far away from the valve body (1), of each transmission rod (7).

2. A reversing valve safety seal according to claim 1, wherein: the fixed orifices are seted up to valve body (1) one end, be equipped with threaded rod (8) in the fixed orifices, threaded rod (8) and fixed orifices meshing, threaded rod (8) one end and case (12) fixed connection, one end fixed mounting carousel (9) of case (12) are kept away from in threaded rod (8).

3. A reversing valve safety seal according to claim 1, wherein: the valve body (1) one end fixed mounting L type support (6), L type support (6) one end fixed mounting magnet piece, the mount table is connected to magnet piece magnetism.

4. A reversing valve safety seal according to claim 1, wherein: a sealing opening is formed in the valve body (1), a sealing block (13) is adhered to one end of the valve core (12) through special glue, and the sealing block (13) is connected with the sealing opening in a sliding mode.

5. A reversing valve safety seal according to claim 1, wherein: the detachable installation closing plate (5) of switching-over hole one end, connecting pipe (4) are established to closing plate (5) endotheca, connecting pipe (4) and closing plate (5) wedging, sealing washer (14) are laminated to the one end that closing plate (5) were kept away from in connecting pipe (4).

6. A reversing valve safety seal according to claim 5, wherein: the sealing gasket is characterized in that an external thread is processed at one end of the connecting pipe (4), a pipe hoop (3) is sleeved at one end of the connecting pipe (4), the pipe hoop (3) is meshed with the connecting pipe (4), and a threaded gasket is sleeved at one end, connected with the sealing plate (5), of the pipe hoop (3).

7. A reversing valve safety seal according to claim 5, wherein: the four corners of the sealing plate (5) are provided with threaded through holes, one end of the valve body (1) is provided with threaded blind holes, fastening bolts (2) are arranged in the threaded through holes, and the fastening bolts (2) are meshed with the threaded blind holes.