CN219159565U

CN219159565U - Encryption stop valve

Info

Publication number: CN219159565U
Application number: CN202222568719.8U
Authority: CN
Inventors: 万建华; 周艳芳; 侯伯忠; 石泽涛; 蒲建康; 李杨; 陈燚; 陈仁志; 梁超
Original assignee: Chengdu Chuanli Smart Fluid Equipment Co ltd
Current assignee: Chengdu Chuanli Smart Fluid Equipment Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-06-09
Anticipated expiration: 2032-09-28

Abstract

The utility model discloses an encryption stop valve, wherein a valve core assembly comprises a valve rod and a valve clack, a connecting rod is fixedly connected to the valve clack, and the connecting rod is in threaded connection with the valve rod; one end of the valve rod passes through the valve cover and is positioned at the outer side of the valve cover; the valve cover is rotationally connected with a transmission sleeve, and the transmission sleeve is connected with the valve rod through a pin; a first mounting hole is formed in one side of the valve cover, which is in contact with the transmission sleeve, and a second mounting hole which can be aligned with the first mounting hole is formed in one side of the transmission sleeve, which is in contact with the valve cover; one end of the fixed spring is fixed in the first mounting hole, the other end of the fixed spring is fixedly connected with the stop pin, and the second mounting hole is internally provided with a first magnetic block; the decryption component comprises a cutting sleeve, the cutting sleeve is connected with the transmission sleeve in a clamping way, and a second magnetic block is arranged in the cutting sleeve; the second magnetic block is opposite to the first magnetic block in position, and one side magnetic poles of the first magnetic block and the second magnetic block, which are close to each other, are the same. By the design, the stop valve can be encrypted, and the stop valve can be prevented from being opened or closed at will.

Description

Encryption stop valve

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to an encryption stop valve.

Background

Along with the increasing construction of urban pipe network systems, valves for urban pipe networks are required to be sealed reliably and have excellent performance. The valve rod of the stop valve in the current market adopts a traditional packing structure, has poor sealing performance, needs long-term maintenance and cannot effectively stop the leakage of the valve rod seal. Meanwhile, the common stop valve can be opened and closed by using a hand wheel or a common tool, and the phenomenon of theft opening cannot be effectively avoided.

According to market demands, on the basis of the original multifunctional copper stop valve, a multifunctional stop valve with an encryption device is developed. The valve is suitable for being used as a valve for interception and check in town water supply, heating and air conditioning systems.

Disclosure of Invention

The utility model aims to provide an encryption stop valve, which solves the problem that the common stop valve in the prior art provided in the background art can be opened and closed by using a hand wheel or a common tool and cannot effectively prevent the phenomenon of illegal opening.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an encryption stop valve comprises a valve body and a valve cover which are connected with each other, wherein a valve core component for opening and closing an inner cavity of the valve body is arranged in the valve body, an encryption component is arranged on the valve cover, and a decryption component is further arranged on the valve cover;

the valve core component comprises a valve rod and a valve clack, a connecting rod is fixedly connected to the valve clack, and the connecting rod is in threaded connection with the valve rod; one end of the valve rod passes through the valve cover and is positioned at the outer side of the valve cover; the valve cover is rotationally connected with a transmission sleeve, and the transmission sleeve is connected with the valve rod through a pin;

the encryption assembly comprises a fixed spring, a stop pin and a first magnetic block; a first mounting hole is formed in one side of the valve cover, which is in contact with the transmission sleeve, and a second mounting hole which can be aligned with the first mounting hole is formed in one side of the transmission sleeve, which is in contact with the valve cover; one end of the fixed spring is fixed in the first mounting hole, the other end of the fixed spring is fixedly connected with the stop pin, and the second mounting hole is internally provided with a first magnetic block;

the decryption component comprises a cutting sleeve, the cutting sleeve is connected with the transmission sleeve in a clamping way, and a second magnetic block is arranged in the cutting sleeve; the second magnetic block is opposite to the first magnetic block in position, and one side magnetic poles of the first magnetic block and the second magnetic block, which are close to each other, are the same.

Further, a first open slot is formed in one side, in contact with the valve cover, of the valve rod, and a second open slot in alignment with the first open slot is formed in the valve cover; the first open slot is internally provided with an open check ring, and the outer side of the open check ring extends into the second open slot.

Further, a first sealing ring is arranged between the valve rod and the valve cover.

Further, a second sealing ring is arranged between the valve cover and the transmission sleeve.

Further, a valve core sleeve is arranged on the valve clack and positioned on the outer side of the connecting rod.

Further, the joint of the transmission sleeve and the valve cover is of a ladder-shaped structure.

Further, the valve clack is made of polytetrafluoroethylene; the valve body is made of copper alloy.

Further, a wrench is arranged on the clamping sleeve.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model is provided with the first mounting hole and the second mounting hole, and when the first mounting hole and the second mounting hole are aligned, the stop pin is sprung upwards under the action of the fixed spring, so that the stop pin is positioned in the first mounting hole and the second mounting hole at the same time, and the stop pin can effectively prevent the transmission sleeve from rotating. Because the end part of the valve rod does not extend out, the valve rod is rotated to rotate the transmission sleeve, and the transmission sleeve is difficult to rotate without the decryption assembly, so that the encryption effect is achieved, and non-professional personnel can be effectively prevented from easily opening and closing the stop valve.

After the clamping sleeve is installed, as the magnetic poles of one side, close to each other, of the second magnetic block and the first magnetic block are the same, the first magnetic block and the second magnetic block repel each other, and the first magnetic block pushes the stop pin to withdraw from the second mounting hole, so that the transmission sleeve can rotate on the valve cover, the transmission sleeve is driven to rotate through the clamping sleeve, and the valve rod is driven to rotate through the transmission sleeve. When the locking device is used, the clamping sleeve is taken down, and the stop pin automatically returns under the action of the fixed spring.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1;

fig. 3 is a schematic view of a part of the ferrule of the present utility model.

The marks in the figure: the valve comprises a valve body, a valve clack, a valve core sleeve, a fixed spring, a first mounting hole, a stop pin, a second sealing ring, a second mounting hole, a first magnetic block, a second magnetic block, a wrench, a clamping sleeve, a transmission sleeve, a valve cover, a valve rod, a connecting rod, a first open slot, a second open slot, a retaining ring, a second open slot and a lug.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

The encryption stop valve comprises a valve body 1 and a valve cover 15 which are connected with each other, wherein a valve core component for opening and closing an inner cavity of the valve body 1 is arranged in the valve body 1, an encryption component is arranged on the valve cover 15, and a decryption component is further arranged;

the valve core assembly comprises a valve rod 16 and a valve clack 2, a connecting rod 17 is fixedly connected to the valve clack 2, and the connecting rod 17 is in threaded connection with the valve rod 16; one end of the valve rod 16 passes through the valve cover 15 and is positioned outside the valve cover 15; the valve cover 15 is rotatably connected with a transmission sleeve 13, and the transmission sleeve 13 is connected with a valve rod 16 through a pin. The bottom of valve rod 16 is provided with the connecting hole, is provided with the internal thread in the connecting hole, and the outside of connecting rod 17 is provided with the external screw thread, and then makes connecting rod 17 and valve rod 16 threaded connection. After the transmission sleeve 13 is connected with the valve rod 16 through a pin, the valve rod 16 can be driven to rotate by rotating the transmission sleeve 13, and the connecting rod 17 in threaded connection with the valve rod 16 can longitudinally move along with the rotation of the valve rod 16, so that the valve clack 2 is controlled to open and close the inner cavity of the valve body 1.

The encryption assembly comprises a fixed spring 4, a stop pin 6 and a first magnetic block 9; a first mounting hole 5 is formed in the side, in contact with the transmission sleeve 13, of the valve cover 15, and a second mounting hole 8 capable of being aligned with the first mounting hole 5 is formed in the side, in contact with the valve cover 15, of the transmission sleeve 13; one end of the fixed spring 4 is fixed in the first mounting hole 5, the other end is fixedly connected with the stop pin 6, and the second mounting hole 8 is internally provided with a first magnetic block 9. When the first mounting hole 5 is aligned with the second mounting hole 8, the stop pin 6 is sprung upwards under the action of the fixed spring 4, so that the stop pin 6 is positioned in the first mounting hole 5 and the second mounting hole 8 at the same time, and the stop pin 6 can effectively prevent the transmission sleeve 13 from rotating. Because the end of the valve stem 16 does not extend, rotating the valve stem 16 requires rotating the drive sleeve 13, and it would be difficult to rotate the drive sleeve 13 without the decryption assembly, thereby achieving the encryption effect.

The decryption assembly comprises a clamping sleeve 12, the clamping sleeve 12 is clamped with a transmission sleeve 13, and a second magnetic block 10 is arranged in the clamping sleeve 12; the second magnetic block 10 is opposite to the first magnetic block 9, and the magnetic poles of the side, close to each other, of the first magnetic block 9 and the second magnetic block 10 are the same. When the valve needs to be opened or closed, the clamping sleeve 12 is clamped with the transmission sleeve 13, and the arrangement mode of the clamping is quite various, for example, a U-shaped groove can be arranged on the outer side of the transmission sleeve 13, a protruding block 21 matched with the U-shaped groove is arranged on the inner side of the clamping sleeve 12, and the clamping is realized through the matching of the protruding block 21 and the U-shaped groove (the structures of the clamping sleeve 12 and the protruding block 21 are shown in fig. 3). After the clamping sleeve 12 is installed, as the magnetic poles of one side, close to each other, of the second magnetic block 10 and the first magnetic block 9 are the same, the first magnetic block 9 and the second magnetic block 10 repel each other, and the first magnetic block 9 pushes the stop pin 6 to withdraw from the second mounting hole 8, so that the transmission sleeve 13 can rotate on the valve cover 15, the transmission sleeve 13 is driven to rotate through the clamping sleeve 12, and the valve rod 16 is driven to rotate through the transmission sleeve 13. When the locking device is used, the clamping sleeve 12 is taken down, and the stop pin 6 automatically returns under the action of the fixed spring 4.

In a preferred embodiment, the valve stem 16 is provided with a first open slot 18 on the side contacting the valve cap 15, and the valve cap 15 is provided with a second open slot 20 aligned with the first open slot 18; a split ring 19 is arranged in the first split groove 18, and the outer side of the split ring 19 extends into the second split groove 20. By providing split ring 19, longitudinal movement of valve stem 16 is effectively prevented, thereby facilitating rotation of valve stem 16 via drive sleeve 13.

In a preferred embodiment, a first seal 14 is disposed between the valve stem 16 and the valve cap 15, the first seal 14 being effective to prevent escape of medium from the gap between the valve stem 16 and the valve stem 16.

In a preferred embodiment, a second sealing ring 7 is arranged between the valve cover 15 and the transmission sleeve 13, and the second sealing ring 7 can effectively prevent dust in air and water vapor from entering the valve cover 15 to cause damage to the encryption component, so that the reliability of the encryption stop valve is ensured.

In a preferred embodiment, the valve clack 2 is provided with a valve core sleeve 3 on the outer side of the connecting rod 17, and the valve core sleeve 3 can enable the valve clack 2 to move more smoothly.

In a preferred embodiment, the connection between the transmission sleeve 13 and the valve cover 15 is in a step structure, and the step structure can increase the travel of dust in air entering the valve cover 15, so as to improve the tightness as much as possible, thereby effectively preventing dust and water vapor in air from entering the valve cover 15.

In a preferred embodiment, the valve flap 2 is made of polytetrafluoroethylene; the valve body 1 is made of copper alloy. Polytetrafluoroethylene has extremely excellent surface non-tackiness, can effectively prevent the medium from adhering to the valve clack 2, has extremely stable performance, and is an excellent choice of the valve clack 2 material. The copper alloy has excellent corrosion resistance, and the valve body 1 using the copper alloy can effectively prolong the service life of the encryption stop valve.

In a preferred embodiment, the wrench 11 is arranged on the clamping sleeve 12, and the wrench 11 can conveniently rotate the clamping sleeve 12, so that the labor-saving function is achieved.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An encrypting stop valve is characterized in that: the valve comprises a valve body (1) and a valve cover (15) which are connected with each other, wherein a valve core component for opening and closing an inner cavity of the valve body (1) is arranged in the valve body (1), an encryption component is arranged on the valve cover (15), and a decryption component is also arranged in the valve cover;

the valve core assembly comprises a valve rod (16) and a valve clack (2), a connecting rod (17) is fixedly connected to the valve clack (2), and the connecting rod (17) is in threaded connection with the valve rod (16); one end of the valve rod (16) passes through the valve cover (15) and is positioned outside the valve cover (15); a transmission sleeve (13) is rotationally connected to the valve cover (15), and the transmission sleeve (13) is connected with the valve rod (16) through a pin;

the encryption assembly comprises a fixed spring (4), a stop pin (6) and a first magnetic block (9); a first mounting hole (5) is formed in one side of the valve cover (15) contacted with the transmission sleeve (13), and a second mounting hole (8) which can be aligned with the first mounting hole (5) is formed in one side of the transmission sleeve (13) contacted with the valve cover (15); one end of the fixed spring (4) is fixed in the first mounting hole (5), the other end of the fixed spring is fixedly connected with the stop pin (6), and a first magnetic block (9) is arranged in the second mounting hole (8);

the decryption component comprises a cutting sleeve (12), the cutting sleeve (12) is connected with the transmission sleeve (13) in a clamping way, and a second magnetic block (10) is arranged in the cutting sleeve (12); the second magnetic block (10) is opposite to the first magnetic block (9), and the magnetic poles of one side, close to each other, of the first magnetic block (9) and the second magnetic block (10) are the same.

2. An encryption shutoff valve according to claim 1, wherein: a first open slot (18) is arranged on one side of the valve rod (16) contacted with the valve cover (15), and a second open slot (20) aligned with the first open slot (18) is arranged on the valve cover (15); a split retaining ring (19) is arranged in the first split groove (18), and the outer side of the split retaining ring (19) extends into the second split groove (20).

3. An encryption shutoff valve according to claim 1, wherein: a first sealing ring (14) is arranged between the valve rod (16) and the valve cover (15).

4. An encryption shutoff valve according to claim 1, wherein: a second sealing ring (7) is arranged between the valve cover (15) and the transmission sleeve (13).

5. An encryption shutoff valve according to claim 1, wherein: the valve clack (2) is provided with a valve core sleeve (3) positioned at the outer side of the connecting rod (17).

6. An encryption shutoff valve according to claim 1, wherein: the joint of the transmission sleeve (13) and the valve cover (15) is of a ladder-shaped structure.

7. An encryption shutoff valve according to claim 1, wherein: the valve clack (2) is made of polytetrafluoroethylene; the valve body (1) is made of copper alloy.

8. An encryption shutoff valve according to claim 1, wherein: a wrench (11) is arranged on the clamping sleeve (12).