CN113108114B

CN113108114B - Anti-theft and anti-misoperation manual valve

Info

Publication number: CN113108114B
Application number: CN202110253291.5A
Authority: CN
Inventors: 陈东红; 黄建勤; 黄听立
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2023-02-21
Anticipated expiration: 2041-03-09
Also published as: CN113108114A

Abstract

The invention discloses an anti-theft and anti-misoperation manual valve, which comprises a valve body, a valve rod, a valve core, a gland and sealing material, wherein the valve rod is rotatably arranged on the valve body, the lower end of the valve rod is connected with the valve core, the gland is arranged on the valve body, the upper end of the valve rod penetrates through the gland to extend upwards, the sealing material is filled in a sealing cavity formed among the valve body, the valve rod and the gland, the manual valve also comprises a base, a locking mechanism and a handle, the base is arranged at the top of the gland, the upper end of the valve rod extends into the base and is fixedly connected with the base, the locking mechanism locks the valve rod by preventing the base from rotating relative to the gland, the handle is provided with a driving rod, the driving rod can be inserted into the base and is in transmission connection with the valve rod, and in the process that the driving rod is inserted into the base, the driving rod drives the locking mechanism to act to unlock the valve rod. The anti-theft and anti-misoperation manual valve can effectively prevent misoperation and has an anti-theft effect.

Description

Anti-theft and anti-misoperation manual valve

Technical Field

The invention relates to the technical field of valves, in particular to a manual valve capable of preventing theft and misoperation.

Background

The valve is a common pipeline accessory, can be used for controlling the flow of gas, water, liquid metal, various corrosive media and other fluids, and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. The valves can be divided into manual valves, electric valves, hydraulic valves, pneumatic valves, electromagnetic valves and the like according to transmission modes, wherein the manual valves are widely used. However, the manual ball valve can control the fluid only by rotating the valve switch by bare hands, so that the manual ball valve can be operated by professionals and other people at will, and risks of misoperation, fluid theft in the pipe and the like exist.

Therefore, it is urgently needed to provide a manual valve which can prevent theft and misoperation.

Disclosure of Invention

In view of the above, the present invention provides an anti-theft and anti-misoperation manual valve, so as to solve the above technical problems.

In order to achieve the purpose, the invention provides the following technical scheme: the valve rod is rotatably arranged on the valve body, the lower end of the valve rod is connected with the valve core, the gland is installed on the valve body, the upper end of the valve rod penetrates through the gland to extend upwards, the sealing material is filled in a sealing cavity formed among the valve body, the valve rod and the gland, the valve further comprises a base, a locking mechanism and a handle, the base is arranged at the top of the gland, the upper end of the valve rod extends into the base and is fixedly connected with the base, the locking mechanism locks the valve rod by preventing the base from rotating relative to the gland, a driving rod is arranged on the handle, the driving rod can be inserted into the base and is in transmission connection with the valve rod, and in the process that the driving rod is inserted into the base, the driving rod drives the locking mechanism to act to release the locking of the valve rod.

Furthermore, the locking mechanism comprises a plurality of locking units, and a plurality of bosses which are correspondingly matched with the locking units one by one are arranged at the bottom of the driving rod.

Furthermore, the locking unit comprises a collision rod, a reset spring, a floating lock block and a compression spring, wherein the collision rod is movably arranged in a positioning hole in the base from top to bottom, the reset spring is arranged between the collision rod and the base, the reset spring can drive the collision rod to be lifted and reset, the floating lock block is movably arranged in a telescopic hole in the top of the gland, the upper end of the floating lock block can extend out of the telescopic hole under the action of the compression spring and extend into a pin hole in the bottom of the base, the bottom of the positioning hole is communicated with the top of the pin hole, after the driving rod is inserted in place, the lower end of the collision rod presses the floating lock block to enable the floating lock block to be just retracted into the telescopic hole, and at least one stroke distance of the collision rod is different from that of the other collision rods in the process of the locking mechanism acting to release the locking of the valve rod.

Furthermore, after all the floating locking blocks are reset, the tops of the floating locking blocks are supported on the tops of the corresponding pin holes, and the heights of the tops of all the floating locking blocks are consistent.

Furthermore, the base includes the base and fixes the apron at base top, the apron with form the inner chamber between the base, the upper end of lance stretches into in the inner chamber, the upper end of valve rod is passed the second through-hole of inner chamber bottom stretches into in the inner chamber, be provided with the confession on the apron the actuating lever insert and with the circle jack of inner chamber intercommunication.

Furthermore, a fifth rod part is arranged at the top of the valve rod, a clamping hole matched with the fifth rod part is formed in the bottom of the driving rod, the section of the fifth rod part is square, and correspondingly, the section of the clamping hole is square.

Furthermore, the top of gland is provided with extension pipe portion, the base holding is in extension pipe portion further ground, the top of lance is connected with the push pedal.

Further, a plurality of locking units are evenly disposed around the valve stem.

Further, the gland is fixedly connected to the valve body through welding.

The technical scheme can show that the invention has the advantages that: when the valve is opened or closed to needs, operating personnel need correctly insert the base with the actuating lever of handle, and press the handle downwards hard afterwards, just can the twist grip open or close the valve, afterwards, operating personnel loosens the pressing to the handle, the lock piece that floats reinserts in the pinhole that corresponds this moment under compression spring's effect, because the lock piece that floats only is partial insertion pinhole, therefore the lock piece that floats can prevent the relative gland rotation of base, and then reach the purpose of locking valve rod, thereby make this manual valve can effectively prevent the maloperation, and have the theftproof effect.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic cross-sectional structure of the present invention.

Fig. 2 is a partial structural schematic diagram of the present invention.

Fig. 3 is a partial structural diagram of another embodiment of the present invention.

Fig. 4 is an enlarged schematic view of the structure at N in fig. 3.

Fig. 5 isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A in fig. 2.

Fig. 6 is a schematic view of the structure of the handle of the present invention.

List of reference numbers: the valve body 1, the mounting hole 11, the first through hole 12, the valve rod 2, the first rod portion 21, the second rod portion 22, the third rod portion 23, the fourth rod portion 24, the fifth rod portion 25, the valve element 3, the gland 4, the extending protrusion 41, the guide hole 42, the extending tube portion 43, the tube cavity 44, the telescopic hole 45, the sealing material 5, the base 6, the base 61, the inner cavity 611, the stepped hole 612, the positioning hole 613, the pin hole 614, the second through hole 615, the cover plate 62, the circular insertion hole 621, the locking mechanism 7, the locking unit 71, the striking rod 711, the push plate 7111, the return spring 712, the floating lock block 713, the compression spring 714, the handle 8, the driving rod 81, the clamping hole 811, and the boss 812.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

Referring to fig. 1 to 6, as shown in fig. 1, 2 and 3, the anti-theft and anti-misoperation manual valve comprises a valve body 1, a valve rod 2, a valve core 3, a gland 4, a sealing material 5, a base 6, a locking mechanism 7 and a handle 8, wherein the valve rod 2 is rotatably arranged in a mounting hole 11 on the valve body 1, the lower end of the valve rod 2 passes through a first through hole 12 at the bottom of the mounting hole 11 and is connected with the valve core 3, the lower part of the gland 4 is screwed in the mounting hole 11, the upper end of the valve rod 2 passes through the gland 4 and extends upwards, the sealing material 5 is filled in a sealing cavity formed between the valve body 1, the valve rod 2 and the gland 4, the base 6 is arranged at the top of the gland 4, the upper end of the valve rod 2 extends into the base 6 and is fixedly connected with the base 6, the locking mechanism 7 locks the valve rod 2 by preventing the base 6 from rotating relative to the gland 4, the handle 8 is provided with a driving rod 81, the driving rod 81 can be inserted into the base 6 and is in transmission connection with the valve rod 2, and in the process that the driving rod 81 is inserted into the base 6, the locking mechanism 7 acts to unlock the locking mechanism 7.

As shown in fig. 2, the base 6 includes a base 61 and a cover plate 62, the cover plate 62 is fixedly welded in a stepped hole 612 at the top of the base 61, an inner cavity 611 is formed between the cover plate 62 and the base 61, and a circular insertion hole 621 communicated with the inner cavity 611 is formed in the cover plate 62.

As shown in fig. 3, the valve rod 2 includes a first rod portion 21, a second rod portion 22, a third rod portion 23, a fourth rod portion 24, and a fifth rod portion 25, which are sequentially connected from bottom to top, the first rod portion 21 passes through the first through hole 12 to be connected with the valve core 3, the second rod portion 22 and the third rod portion 23 are accommodated in the mounting hole 11, a sealing cavity is defined between an inner wall of the mounting hole 11, a top wall of the second rod portion 22, an outer peripheral wall of the third rod portion 23, and a bottom wall of the extending convex portion 41 at the bottom of the gland 4, the fourth rod portion 24 sequentially passes through the guide hole 42 on the gland 4 and the second through hole 615 on the base 6 to extend into the inner cavity 611, the fourth rod portion 24 is fixedly connected with the base 6 by welding, the section of the fifth rod portion 25 is square, and correspondingly, the section of the locking hole 811 arranged at the bottom of the driving rod 81 and matched with the fifth rod portion 25 is square.

As shown in fig. 2, 5 and 6, the locking mechanism 7 includes four locking units 71, the four locking units 71 are uniformly distributed around the valve rod 2, and the bottom of the driving rod 81 is provided with four bosses 812 which are correspondingly matched with the four locking units 71 one by one.

In addition, the number of the locking units 71 can be set to two, three, five, six, etc. according to the use requirement.

As shown in fig. 4 and 5, the locking unit 71 includes a striker 711, a return spring 712, a floating lock 713 and a compression spring 714, the striker 711 is movably disposed in the positioning hole 613 at the bottom of the inner cavity 611, the upper end of the striker 711 extends out of the positioning hole 613 and into the inner cavity 611, the top of the striker 711 is connected to a push plate 7111, the outer peripheral side of the push plate 7111 abuts against the inner wall of the inner cavity 611, the inner side of the push plate 7111 abuts against the outer side wall of the fifth rod portion 25, the return spring 712 is sleeved on the striker 711, the upper end of the return spring 712 abuts against the bottom of the push plate 7111, the lower end of the return spring 712 abuts against the bottom of the inner cavity 611, the top of the push plate 7111 can abut against the bottom of the cover plate 62 under the action of the return spring 712, the floating lock blocks 713 are movably arranged in the telescopic holes 45 at the top of the gland 4 up and down, the compression springs 714 are arranged between the bottom walls of the floating lock blocks 713 and the telescopic holes 45, the upper ends of the floating lock blocks 713 can extend into the pin holes 614 at the bottoms of the positioning holes 613 under the action of the compression springs 714, when the driving rod 81 is inserted in place, the lower ends of the collision rods 711 press the floating lock blocks 713 to enable the floating lock blocks 713 to be just retracted into the telescopic holes 45, when all the floating lock blocks 713 are reset, the tops of all the floating lock blocks 713 are respectively supported on the tops of the corresponding pin holes 614, and the heights of the tops of all the floating lock blocks 713 are consistent.

In this embodiment, the lengths of the four lances 711 of the locking unit 71 are different, so that the stroke distances of the four lances 711 are different in the process of the locking mechanism 7 operating to unlock the valve stem 2, thereby making the anti-theft performance of the manual valve more excellent.

Preferably, the top of the gland 4 is provided with an extension pipe portion 43, the base 6 is accommodated in the pipe cavity 44 of the extension pipe portion 43, and the extension pipe portion 43 can play a protection role, so that the anti-theft performance is further improved.

Preferably, the gland 4 is fixedly connected to the valve body 1 by welding, so that the anti-theft performance of the manual valve is more excellent.

Preferably, the top of the cover plate 62 is provided with an indication mark, and the handle 8 is provided with an indication line matched with the indication mark, so that an operator can correctly insert the driving rod 81 of the handle 8 into the circular insertion hole 621.

As shown in fig. 2 and 3, when the valve needs to be opened or closed, an operator inserts the driving rod 81 of the handle 8 into the circular insertion hole 621, then presses the handle 8 downward with force, the boss 812 at the bottom of the driving rod 81 pushes the corresponding push plate 7111 to move downward, and the push plate 7111 drives the striker 711 to move downward, the striker 711 pushes the floating lock block 713 to move the floating lock block 713 into the telescopic hole 45 against the elastic force of the compression spring 714 until the top end of the fifth rod portion 25 abuts against the inner top wall of the fastening hole 811, and all the floating lock blocks 713 are just completely retracted into the telescopic hole 45, and then the operator rotates the handle 8 to open or close the valve, and then the operator releases the pressing of the handle 8, the striker 711 drives the push plate 7111 to reset under the action of the return spring 712, and the floating lock block 713 is reinserted into the corresponding pin hole 614 and abuts against the top of the pin hole 614 at this time under the action of the compression spring 714, and thus the floating lock block 713 can prevent the valve from rotating relative to the base 4, and the valve rod can be operated by mistake.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. 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 manual valve preventing theft and misoperation comprises a valve body (1), a valve rod (2), a valve core (3), a gland (4) and a sealing material (5), wherein the valve rod (2) is rotatably arranged on the valve body (1), the lower end of the valve rod (2) is connected with the valve core (3), the gland (4) is installed on the valve body (1), the upper end of the valve rod (2) penetrates through the gland (4) to extend upwards, the sealing material (5) is filled in a sealing cavity formed between the valve body (1), the valve rod (2) and the gland (4), the manual valve is characterized by further comprising a base (6), a locking mechanism (7) and a handle (8), the base (6) is arranged at the top of the gland (4), the upper end of the valve rod (2) extends into the base (6) and is fixedly connected with the base (6), the locking mechanism (7) locks the valve rod (2) by preventing the base (6) from rotating relative to the gland (4), the handle (8) is provided with a driving rod (81), the driving rod (81) can be inserted into the base (6) and is connected with the driving rod (6), and the driving rod (6) is inserted into the base (81), the driving rod (81) drives the locking mechanism (7) to act to unlock the valve rod (2), wherein the locking mechanism (7) comprises a plurality of locking units (71), the bottom of the driving rod (81) is provided with a plurality of bosses (812) which are matched with the locking units (71) in a one-to-one correspondence manner, each locking unit (71) comprises a striker (711), a return spring (712), a floating locking block (713) and a compression spring (714), the striker (711) is movably arranged in a positioning hole (613) on the base (6) up and down, the return spring (712) is arranged between the striker (711) and the base (6), the return spring (712) can lift and reset the striker (711), the floating locking block (713) is movably arranged in the positioning hole (45) at the top of the gland (4), the upper end of the floating locking block (713) can extend out of the telescopic hole (45) and extend into the pin hole (6) under the action of the compression spring (714), and the upper end of the floating locking block (713) can be connected with the bottom of the base (614) when the striker (711) is pressed in place, the lower end of the floating locking block (614) can be just connected with the bottom of the telescopic locking block (614) after the striker (713) In the process of releasing the locking of the valve rod (2) by the locking mechanism (7), the stroke distance of at least one of the strikers (711) is different from the stroke distances of the other strikers (711).

2. The anti-theft anti-misoperation manual valve is characterized in that after all the floating locking blocks (713) are reset, the tops of the floating locking blocks (713) are supported against the tops of the corresponding pin holes (614), and the heights of the tops of all the floating locking blocks (713) are consistent.

3. The manual valve according to claim 2, wherein the base (6) comprises a base (61) and a cover plate (62) fixed on the top of the base (61), an inner cavity (611) is formed between the cover plate (62) and the base (61), the upper end of the striker (711) extends into the inner cavity (611), the upper end of the valve rod (2) extends into the inner cavity (611) through a second through hole (615) at the bottom of the inner cavity (611), and a round insertion hole (621) for the driving rod (81) to insert and communicate with the inner cavity (611) is formed in the cover plate (62).

4. The anti-theft and anti-misoperation manual valve is characterized in that a fifth rod part (25) is arranged at the top of the valve rod (2), a clamping hole (811) matched with the fifth rod part (25) is formed in the bottom of the driving rod (81), the section of the fifth rod part (25) is square, and correspondingly, the section of the clamping hole (811) is square.

5. An anti-theft anti-misoperation manual valve according to any one of claims 1 to 4, wherein the top of the gland (4) is provided with an extension tube portion (43), the base (6) being received within a lumen (44) of the extension tube portion (43).

6. The anti-theft and anti-misoperation manual valve is characterized in that a push plate (7111) is connected to the top of the striker (711).

7. Anti-theft anti-misoperation manual valve according to claim 1, wherein a number of locking units (71) are evenly arranged around the valve stem (2).

8. The anti-theft and anti-misoperation manual valve according to claim 1, characterized in that the gland (4) is fixedly connected to the valve body (1) by welding.