Automatic cut-off valve

Abstract

The utility model relates to an automatic cut-off valve which comprises a valve body, connecting bins are fixedly connected to the top face and the bottom face of the valve body and located at the water inlet end, partition plates are fixedly connected to the interiors of the two connecting bins, and sealing plates are placed in the two connecting bins. Connecting grooves are formed in the top face and the bottom face of the valve body correspondingly, the two sealing plates extend into the two connecting grooves correspondingly, and rubber rings are fixedly connected to the interiors of the two connecting grooves correspondingly. According to the automatic cut-off valve, under the action of a sealing plate, the valve body is conveniently cut off, under the action of a first electric push rod, the sealing plate is pushed to move, automatic cut-off is conducted, the practicability is improved, meanwhile, under the action of a rubber ring, a connecting groove is sealed, the sealing performance is improved, and the service life of the valve is prolonged. And through clearance fit between the fixing rods and the first fixing holes and the second fixing holes, the sealing plate is fixed, and the stability of the sealing plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an automatic cut-off valve. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. Valves are control components in fluid conveying systems and have functions such as cutoff, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves are generally divided into cutoff, check, safety, regulation, diversion and special purpose types according to their uses.

[0003] Chinese patent CN 203036028 U discloses a shut-off check valve, which has both a check function and a shut-off function, solving the problems of a large number of existing installed valves, large installation dimensions, increased costs, and inconvenient repair and maintenance.

[0004] However, when the device is in use, it performs non-return and cutting by the action of the shut-off valve and the check valve, but both are operated manually. When leakage occurs, emergency cutting cannot be performed, which reduces practicality. Therefore, an automatic shut-off valve is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an automatic shut-off valve, which has the advantage of automatic shut-off and solves the problem that when the device is in use, it performs non-return and shut-off through the action of the shut-off valve and the check valve, but both are operated manually. When leakage occurs, emergency shut-off cannot be performed, which reduces the practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic cut-off valve, comprising a valve body, the top and bottom surfaces of the valve body are fixedly connected with connecting bins at the water inlet end, and the interiors of the two connecting bins are fixedly connected with partitions.

[0007] Sealing plates are placed inside the two connecting bins, connecting grooves are opened on the top and bottom surfaces of the valve body, the two sealing plates extend to the inside of the two connecting grooves respectively, rubber rings are fixedly connected to the inside of the two connecting grooves, the two sealing plates pass through the two rubber rings respectively, and support blocks are fixedly connected to the left inner wall and the right inner wall of the two connecting bins.

[0008] The two connecting chambers are both provided with driving components to drive the sealing plate to move.

[0009] A fixing assembly is provided between two adjacent supporting blocks for fixing the sealing plate.

[0010] Furthermore, the connection chamber is in the shape of a rectangular parallelepiped with a hollow interior and a missing side surface close to the valve body, the rubber ring and the sealing plate fit tightly, and the four support blocks all fit the valve body.

[0011] Further, the driving assembly includes a first electric push rod, which is fixedly mounted on a side surface of the partition away from the valve body, the output end of the first electric push rod passes through the partition and extends to its bottom, the output end of the first electric push rod is fixedly connected to a movable plate, the movable plate and the sealing plate are fixedly connected, the left inner wall and the right inner wall of the connecting bin are both provided with a slide groove, the left side and the right side of the movable plate are both fixedly connected to a slider whose end extends to the inside of the slide groove, and the left inner wall and the right inner wall of the connecting bin are both fixedly mounted with batteries.

[0012] Furthermore, the slider and the slide groove are slidably connected, a through hole is provided on the top surface of the partition, and the output end of the first electric push rod passes through the through hole and is clearance-matched therewith.

[0013] Further, the fixing assembly includes two fixing grooves, the two fixing grooves are respectively opened on the opposite side surfaces of two adjacent support blocks, fixing plates are placed inside the two fixing grooves, second electric push rods are fixedly installed inside the two fixing grooves, the output ends of the two second electric push rods are respectively fixedly connected to the two fixing plates, the opposite side surfaces of the two fixing plates are fixedly connected to fixing rods, the left and right sides of the sealing plate are each provided with a first fixing hole, the two fixing rods respectively extend to the inside of the two first fixing holes, and the left and right sides of the sealing plate are each provided with a second fixing hole adapted to the fixing rod.

[0014] Furthermore, the fixing plate and the sealing plate fit tightly together, and the first fixing hole and the second fixing hole are both loosely matched with the fixing rod.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The automatic cut-off valve can conveniently cut off the valve body under the action of the sealing plate, and can push the sealing plate to move under the action of the first electric push rod to automatically cut off the valve, thereby improving practicality. At the same time, under the action of the rubber ring, the connecting groove is sealed to improve the sealing performance, and the sealing plate is fixed by the clearance between the fixing rod and the first fixing hole and the second fixing hole to improve the stability of the sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2This is a schematic diagram of the internal structure of the connection compartment at the top of the structure of the utility model;

[0019] Figure 3 for Figure 2 A is a magnified schematic diagram of the structure.

[0020] In the figure: 1 valve body, 2 connecting chamber, 3 sealing plate, 4 rubber ring, 5 connecting groove, 6 second fixing hole, 7 partition, 8 first electric push rod, 9 battery, 10 moving plate, 11 slider, 12 slide groove, 13 support block, 14 first fixing hole, 15 fixing rod, 16 fixing plate, 17 fixing groove, 18 second electric push rod. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-3 In this embodiment, an automatic shut-off valve includes a valve body 1, and the top and bottom surfaces of the valve body 1 are fixedly connected to connection chambers 2 at the water inlet end, and the interiors of the two connection chambers 2 are fixedly connected to partitions 7.

[0023] Sealing plates 3 are placed inside the two connecting chambers 2, and connecting grooves 5 are opened on the top and bottom surfaces of the valve body 1. The two sealing plates 3 extend to the inside of the two connecting grooves 5 respectively. Rubber rings 4 are fixedly connected to the inside of the two connecting grooves 5. The two sealing plates 3 pass through the two rubber rings 4 respectively, and the left inner wall and the right inner wall of the two connecting chambers 2 are fixedly connected with support blocks 13.

[0024] The connection chamber 2 is shaped like a rectangular parallelepiped with a hollow interior and a missing side surface close to the valve body 1 . The rubber ring 4 and the sealing plate 3 fit tightly together, and the four support blocks 13 all fit together with the valve body 1 .

[0025] It should be noted that the valve body 1 is a conventional device known to the public in the prior art, and its specific structure and working principle will not be described in detail herein.

[0026] Specifically, the sealing plates 3 enter into the interior of the valve body 1 , and the valve body 1 is cut off by the fitting of the sealing plates 3 . The connecting groove 5 is sealed by the action of the rubber ring 4 , thereby improving the sealing performance of the connecting groove 5 .

[0027] In this embodiment, a driving assembly is provided inside each of the two connecting bins 2, and the driving assembly includes a first electric push rod 8, which is fixedly mounted on a side surface of the partition 7 away from the valve body 1, and the output end of the first electric push rod 8 passes through the partition 7 and extends to the bottom thereof, and the output end of the first electric push rod 8 is fixedly connected to a movable plate 10, and the movable plate 10 and the sealing plate 3 are fixedly connected, and a slide groove 12 is provided on the left inner wall and the right inner wall of the connecting bin 2, and a slider 11 having one end extending to the inside of the slide groove 12 is fixedly connected to the left side and the right side of the movable plate 10, and a battery 9 is fixedly mounted on the left inner wall and the right inner wall of the connecting bin 2.

[0028] The slider 11 and the slide groove 12 are slidably connected, a through hole is provided on the top surface of the partition 7, and the output end of the first electric push rod 8 passes through the through hole and is clearance-matched with the through hole.

[0029] It should be noted that the storage battery 9 is a conventional device known to the public in the prior art, and its specific structure and working principle will not be described in detail herein.

[0030] Specifically, the first electric push rod 8 is started, and the output end of the first electric push rod 8 drives the movable plate 10 to move. The movable rod 10 drives the sealing plate 3 to enter the interior of the valve body 1. The movable plate 10 is supported by the sliding connection between the slide groove 12 and the slider 11 to improve the stability of the movable plate 10.

[0031] In this embodiment, a fixing component is provided between two adjacent support blocks 13, and the fixing component includes two fixing grooves 17, and the two fixing grooves 17 are respectively opened on the opposite side surfaces of two adjacent support blocks 13, and fixing plates 16 are placed inside the two fixing grooves 17, and second electric push rods 18 are fixedly installed inside the two fixing grooves 17, and the output ends of the two second electric push rods 18 are respectively fixedly connected to the two fixing plates 16, and the opposite side surfaces of the two fixing plates 16 are fixedly connected to fixing rods 15, and the left and right sides of the sealing plate 3 are both provided with first fixing holes 14, and the two fixing rods 15 extend to the inside of the two first fixing holes 14 respectively, and the left and right sides of the sealing plate 3 are both provided with second fixing holes 6 adapted to the fixing rods 15.

[0032] The fixing plate 16 and the sealing plate 3 are tightly fitted, and the first fixing hole 14 and the second fixing hole 6 are both loosely matched with the fixing rod 15 .

[0033] It should be noted that the first electric push rod 8 and the second electric push rod 18 are conventional devices known to the public in the prior art, and their specific structures and working principles are not described in detail herein.

[0034] Specifically, the second electric push rod 18 is started, and the output end of the second electric push rod 18 drives the fixing plate 16 to move, and the fixing plate 16 drives the fixing rod 15 to move, so that the fixing rod 15 is disengaged from the first fixing hole 14. After the sealing plate 3 is fitted, the fixing rod 15 and the second fixing hole 6 are located on the same horizontal line, and then the fixing rod 15 is reset, and the fixing rod 15 is inserted into the inside of the second fixing hole 6. The sealing plate 3 is fixed by the clearance fit between the fixing rod 15 and the second fixing hole 6.

[0035] The working principle of the above embodiment is:

[0036] The battery 9 provides power to the first electric push rod 8 and the second electric push rod 18. When it needs to be cut off, the second electric push rod 18 is started, and the output end of the second electric push rod 18 drives the fixed plate 16 to move, and the fixed plate 16 drives the fixed rod 15 to move, so that the fixed rod 15 is separated from the first fixed hole 14, and then the first electric push rod 8 is started, and the output end of the first electric push rod 8 drives the movable plate 10 to move, and the movable rod 10 drives the sealing plate 3 to enter the interior of the valve body 1, and the valve body 1 is cut off through the fitting between the sealing plates 3, and the movable plate 10 is supported through the sliding connection between the slide groove 12 and the slider 11 to improve the stability of the movable plate 10. At this time, the fixed rod 15 and the second fixed hole 6 are located on the same horizontal line, so that the fixed rod 15 is reset, and the fixed rod 15 is inserted into the interior of the second fixed hole 6, and the sealing plate 3 is fixed through the clearance fit between the fixed rod 15 and the second fixed hole 6, and the connecting groove 5 is sealed under the action of the rubber ring 4 to improve the sealing performance of the connecting groove 5.

[0037] The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The power supply provided by the battery is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic shutoff valve, comprising a valve body (1), characterized in that: The top surface and the bottom surface of the valve body (1) are fixedly connected to a connection chamber (2) at the water inlet end, and the interiors of the two connection chambers (2) are fixedly connected to a partition plate (7); A sealing plate (3) is placed inside the two connecting chambers (2); a connecting groove (5) is provided on the top and bottom surfaces of the valve body (1); the two sealing plates (3) extend to the inside of the two connecting grooves (5) respectively; a rubber ring (4) is fixedly connected to the inside of the two connecting grooves (5); the two sealing plates (3) penetrate the two rubber rings (4) respectively; and a support block (13) is fixedly connected to the left inner wall and the right inner wall of the two connecting chambers (2); A driving assembly is provided inside each of the two connection bins (2), and a fixing assembly is provided between two adjacent support blocks (13).

2. An automatic shutoff valve according to claim 1, characterized in that: The connection chamber (2) is in the shape of a rectangular parallelepiped with a hollow interior and a missing side surface close to the valve body (1); the rubber ring (4) and the sealing plate (3) fit tightly together; and the four support blocks (13) all fit together with the valve body (1).

3. An automatic shutoff valve according to claim 1, characterized in that: The driving assembly comprises a first electric push rod (8), the first electric push rod (8) being fixedly mounted on a side surface of a partition (7) away from the valve body (1), the output end of the first electric push rod (8) passing through the partition (7) and extending to the bottom thereof, the output end of the first electric push rod (8) being fixedly connected to a movable plate (10), the movable plate (10) and the sealing plate (3) being fixedly connected, a slide groove (12) being provided on the left inner wall and the right inner wall of the connecting chamber (2), a slider (11) having one end extending into the interior of the slide groove (12) being fixedly connected to the left and right inner walls of the movable plate (10), and a storage battery (9) being fixedly mounted on the left and right inner walls of the connecting chamber (2).

4. An automatic shutoff valve according to claim 3, characterized in that: The slider (11) and the slide groove (12) are slidably connected, a through hole is provided on the top surface of the partition (7), and the output end of the first electric push rod (8) passes through the through hole and is clearance-matched therewith.

5. The automatic shutoff valve according to claim 3, characterized in that: The fixing assembly comprises two fixing grooves (17), the two fixing grooves (17) are respectively arranged on opposite side surfaces of two adjacent support blocks (13), a fixing plate (16) is placed inside the two fixing grooves (17), a second electric push rod (18) is fixedly installed inside the two fixing grooves (17), the output ends of the two second electric push rods (18) are respectively fixedly connected to the two fixing plates (16), the opposite side surfaces of the two fixing plates (16) are fixedly connected to fixing rods (15), the left side surface and the right side surface of the sealing plate (3) are respectively provided with first fixing holes (14), the two fixing rods (15) extend to the inside of the two first fixing holes (14), and the left side surface and the right side surface of the sealing plate (3) are respectively provided with second fixing holes (6) adapted to the fixing rods (15).

6. An automatic shutoff valve according to claim 5, characterized in that: The fixing plate (16) and the sealing plate (3) are tightly fitted, and the first fixing hole (14) and the second fixing hole (6) are both loosely matched with the fixing rod (15).

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