CN219263216U - Improved encryption device and gate valve with same - Google Patents

Improved encryption device and gate valve with same Download PDF

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Publication number
CN219263216U
CN219263216U CN202223599360.7U CN202223599360U CN219263216U CN 219263216 U CN219263216 U CN 219263216U CN 202223599360 U CN202223599360 U CN 202223599360U CN 219263216 U CN219263216 U CN 219263216U
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China
Prior art keywords
transmission
propping
encryption
groove
piece
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CN202223599360.7U
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Chinese (zh)
Inventor
江卜财
熊才华
江卜熖
廖江山
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Fujian Province Standard Valve Technology Co ltd
Chuanbiao Fluid Control Co ltd
Original Assignee
Fujian Province Standard Valve Technology Co ltd
Chuanbiao Fluid Control Co ltd
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Priority to CN202223599360.7U priority Critical patent/CN219263216U/en
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Publication of CN219263216U publication Critical patent/CN219263216U/en
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  • Preventing Unauthorised Actuation Of Valves (AREA)

Abstract

The utility model relates to an improved encryption device and a gate valve with the same, comprising an encryption seat, a rotary protecting sleeve, a transmission piece, an encryption groove, a connecting piece and a locking transmission device, wherein the encryption seat is detachably arranged on a valve cover of a valve, the lower end of the encryption seat is used for a valve rod to pass through upwards, the rotary protecting sleeve is rotatably arranged on the encryption seat, the transmission piece is detachably arranged on the rotary protecting sleeve and is used for being matched with a hand wheel, the encryption groove is formed on the transmission piece and is used for being matched with the encryption seat to form an encryption cavity, the connecting piece is rotatably arranged in the encryption cavity and is used for being matched with the valve rod penetrating upwards into the encryption cavity and driving the valve rod to rotate, and the locking transmission device is releasably arranged between the connecting piece and the transmission piece and is used for being transmitted between the connecting piece and the transmission piece.

Description

Improved encryption device and gate valve with same
Technical Field
The utility model relates to the technical field of valves, in particular to an improved encryption device and a gate valve with the same.
Background
The valve is a pipeline accessory for opening and closing a pipeline, controlling flow direction, adjusting and controlling parameters, temperature, pressure and flow of a conveying medium, can be divided into a shut-off valve, a check valve, a regulating valve and the like according to the functions, is a control component in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, splitting or overflow pressure relief and the like, is used for the fluid control system, and is quite various in variety and specification from the simplest shut-off valve to various valves used in the extremely complex automatic control system, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive mediums, slurry, oil, liquid metal, radioactive mediums and the like.
The gate valve is easy to open in pipeline connection, and potential safety hazards exist to a certain extent. Particularly in public places or in production, the public places are opened by non-staff, so that resource waste and production safety accidents or losses in the public places are caused. And is disadvantageous for the management of public resources and production.
Thus, valves with encryption devices are available on the market, however, the prior art encryption valves have the following drawbacks:
1. the encryption device is usually arranged inside the valve and is not detachable, and if the valve is damaged, the valve is not convenient to maintain and replace.
Disclosure of Invention
Accordingly, in view of the above-mentioned problems, the present utility model provides an improved encryption device and a gate valve having the same.
In order to achieve the technical problems, the technical scheme adopted by the utility model is that the improved encryption device comprises an encryption seat, a rotary protecting sleeve, a transmission piece, an encryption groove, a connecting piece and a locking transmission device, wherein the encryption seat is detachably arranged on a valve cover of a valve, the lower end of the encryption seat is used for a valve rod to pass through upwards, the rotary protecting sleeve is rotatably arranged on the encryption seat, the transmission piece is detachably arranged on the rotary protecting sleeve and is used for being matched with a hand wheel, the encryption groove is formed in the transmission piece and is used for being matched with the encryption seat to form an encryption cavity, the connecting piece is rotatably arranged in the encryption cavity and is used for being matched with the valve rod which upwards penetrates into the encryption cavity and drives the valve rod to rotate, and the locking transmission device is releasably arranged between the connecting piece and the transmission piece.
The further improvement is that: the lock-up transmission includes: the periphery of the connecting piece is provided with at least one transmission groove, a first propping piece is slidably/rollably arranged in the transmission groove, and an elastic piece with one end propping against the first propping piece and the other end propping against the side wall of the transmission groove is arranged in the transmission groove;
the transmission part is provided with at least one transmission through hole corresponding to the transmission groove, a first magnetic part can be slidably arranged in the transmission through hole, a second propping part can be slidably arranged in the transmission through hole, one end of the second propping part is propped against the first magnetic part, the other end of the second propping part is propped against the side wall of the connecting part, when the transmission part rotates for a certain angle, the other end of the second propping part is propped against the first propping part, and one end of the second propping part can slide into the transmission groove;
the rotary protective sleeve is externally provided with a second magnetic piece which is matched with the first magnetic piece and used for driving the first magnetic piece to slide towards the direction of the connecting piece.
The further improvement is that: the first propping piece is a ball, and one end of the second propping piece propping against the side wall of the connecting piece is an arc-shaped end head.
The further improvement is that: the encryption seat with be provided with between the rotation lag and be used for preventing the rotation lag breaks away from the spacing rand of encryption seat, first spacing groove has been seted up on the rotation lag inner wall, encrypt be provided with on the seat with the second spacing groove that first spacing groove position mutually matches, spacing rand cover is located encrypt on the seat and be located second spacing groove department and lateral wall with first spacing groove inner wall offset top, spacing rand is c spacing rand.
The further improvement is that: the third limiting groove is formed in the inner wall of the rotary protective sleeve, the limiting clamp spring used for limiting the connecting piece to slide downwards and separate from the rotary protective sleeve is arranged at the position, located in the third limiting groove, of the rotary protective sleeve, and the upper end of the limiting clamp spring abuts against the lower end face of the connecting piece when the connecting piece is arranged in the encryption cavity.
The further improvement is that: and a sealing element is arranged between the rotary protective sleeve and the encryption seat.
In order to realize the technical problems, the utility model also provides the following solutions: the utility model provides a gate valve with encryption device, includes the valve body, set up in valve gap on the valve body, set up in inlet channel and the play water channel in the valve body, set up in inlet channel with valve seat between the play water channel, set up in between the inlet channel with valve plate that the disk seat matched with in order to control fluid and open and close, set up in between inlet channel with play water channel lower extreme with valve plate connection upper end wears out the valve body and the valve rod of valve gap, can dismantle set up in be used for limiting on the valve gap valve rod pivoted encryption device, its characterized in that: the encrypting device comprises an encrypting seat, a rotary protecting sleeve, a transmission part, an encrypting groove, a connecting part, a locking transmission device and a locking transmission device, wherein the encrypting seat is detachably arranged on the valve cover, the lower end of the encrypting seat is used for the valve rod to upwards penetrate through, the rotary protecting sleeve is rotatably arranged on the encrypting seat, the transmission part is detachably arranged on the rotary protecting sleeve, the encrypting groove is formed on the transmission part and used for being matched with the encrypting seat to form an encrypting cavity, the connecting part is rotatably arranged in the encrypting cavity and used for being matched with the valve rod which upwards penetrates into the encrypting cavity, the connecting part is used for driving the valve rod to rotate, and the locking transmission device is arranged between the connecting part and the transmission part.
The further improvement is that: the lock-up transmission includes: the periphery of the connecting piece is provided with at least one transmission groove, a first propping piece is slidably/rollably arranged in the transmission groove, and an elastic piece with one end propping against the first propping piece and the other end propping against the side wall of the transmission groove is arranged in the transmission groove;
the transmission part is provided with at least one transmission through hole corresponding to the transmission groove, a first magnetic part can be slidably arranged in the transmission through hole, a second propping part can be slidably arranged in the transmission through hole, one end of the second propping part is propped against the first magnetic part, the other end of the second propping part is propped against the side wall of the connecting part, when the transmission part rotates for a certain angle, the other end of the second propping part is propped against the first propping part, and one end of the second propping part can slide into the transmission groove;
the rotary protective sleeve is externally provided with a second magnetic piece which is matched with the first magnetic piece and used for driving the first magnetic piece to slide towards the direction of the connecting piece.
The further improvement is that: and a hand wheel is sleeved on the transmission part and the rotation protecting sleeve, and the second magnetic part is arranged on the hand wheel.
The further improvement is that: the encryption seat is detachably arranged on the valve cover through bolts.
By adopting the technical scheme, the utility model has the beneficial effects that: in the utility model, the encryption device is arranged, so that non-staff can be prevented from opening the device, and resource waste in public places and safety accidents or losses in production are prevented; simultaneously, the encryption device is detachably arranged on the valve, if the valve is damaged, the encryption device can be detached for maintenance and replacement, and meanwhile, the normal use of the valve cannot be influenced.
Drawings
FIG. 1 is a schematic view of a gate valve according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a cryptographic device according to an embodiment of the utility model;
FIG. 3 is a schematic view of a cipher stand according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a driving member according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a rotary guard sleeve according to an embodiment of the present utility model;
FIG. 6 is a schematic view of a connector structure according to an embodiment of the present utility model.
Detailed Description
The utility model will now be further described with reference to the drawings and specific examples.
Embodiment one;
referring to fig. 1 to 6, the present embodiment discloses a gate valve with an improved encrypting device, which comprises a valve body 1, a valve cover 2 arranged on the valve body 1 through bolts, a water inlet channel 3 and a water outlet channel 4 arranged in the valve body 1, a valve seat 5 arranged between the water inlet channel 3 and the water outlet channel 4, a valve plate 6 which is arranged between the water inlet channel 3 and the water outlet channel 4 and is matched with the valve seat 5 to control the opening and closing of fluid, a rotatable valve plate 6 arranged between the water inlet channel 3 and the water outlet channel 4, a lower end connected with the valve plate 6 through threads, a valve rod 7 penetrating out of the upper ends of the valve body 1 and the valve cover 2, an encrypting device detachably arranged on the valve cover 2 and used for limiting the rotation of the valve rod 7, and a rotatable protecting sleeve 9 arranged on the encrypting seat 8 through bolts, a transmission piece 10 detachably arranged on the rotatable protecting sleeve 9 through threaded connection, a transmission piece 10 arranged on the rotatable protecting sleeve 10 and a transmission piece 10 arranged in the transmission piece 12 and a transmission piece 12 matched with the transmission piece.
The lock-up transmission includes: two transmission grooves 13 are symmetrically formed in the periphery of the connecting piece 12, a first propping piece 14 is slidably/rollably arranged in the transmission groove 13, an elastic piece with one end propping against the first propping piece 14 and the other end propping against the side wall of the transmission groove 13 is arranged in the transmission groove 13, and the elastic piece is a compression spring 15.
Six transmission through holes 16 corresponding to the transmission grooves 13 are formed in the peripheral side of the transmission member 10, threads are formed in the peripheral side of the transmission member 10, the transmission through holes 16 are formed in a part, with the threads, of the transmission member 10, a first magnet 17 is slidably arranged in each transmission through hole 16, a second supporting member 18 is slidably arranged in each transmission through hole 16, one end of the second supporting member 18 abuts against the other end of the first magnet 17 to abut against the side wall of the connecting member 12, when the transmission member 10 rotates by a certain angle, the other end of the second supporting member 18 abuts against the first supporting member 14, one end of the second supporting member 18 can slide into the transmission groove 13, when one end of the second supporting member 18 slides into the transmission groove 13, the other part of the second supporting member 18 is still positioned in the transmission through hole 16, and at the moment, if the transmission member 10 rotates, the transmission member 10 drives the second supporting member 18 to rotate, and the second supporting member 18 drives the connecting member 12 to rotate, so that the transmission function is realized.
The outside of the rotary protecting sleeve 9 is provided with a second magnet 19 which is matched with the first magnet 17 and is used for driving the first magnet 17 to slide towards the direction of the connecting piece 12, the magnetic poles of the ends of the first magnet 17 and the second magnet 19 which are close to each other are the same, so that the first magnet 17 and the second magnet 19 can repel each other, when the second magnet 19 is controlled to be close to the first magnet 17 by staff, the first magnet 17 and the second magnet 19 repel each other, if the transmission piece 10 is rotated again at the moment, the transmission through hole 16 corresponds to the transmission groove 13, the first magnet 17 and the second magnet 19 repel each other, the first magnet 17 drives the first magnet 17 to slide towards the direction of the transmission groove 13 in the transmission through hole 16, the first magnet 17 drives the second abutting piece 18 to slide, the second abutting piece 18 abuts against the first abutting piece 14, the elasticity of the compression spring 15 is overcome, one end of the second abutting piece 18 penetrates into the transmission groove 13, and if the transmission piece 10 is rotated at the moment, the transmission piece 10 drives the second abutting piece 18 to rotate, so that the transmission piece 18 can rotate, and the transmission function is realized; when the worker controls the second magnet 19 to be far away from the first magnet 17, the compression spring 15 drives the first propping piece 14 to reset under the action of the compression spring 15, and the first propping piece 14 drives the second propping piece 18 to be far away from the transmission groove 13, so that reset is realized; at this time, the transmission member 10 and the connecting member 12 can no longer transmit power, and if the transmission member 10 is rotated again at this time, the transmission member 10 will no longer drive the connecting member 12 to rotate.
To facilitate the resetting, the first propping member 14 is a ball, and one end of the second propping member 18 propping against the side wall of the connecting member 12 is an arc-shaped end.
The transmission member 10 and the rotation protecting sleeve 9 are sleeved with a hand wheel 20, and the second magnetic member is arranged on the hand wheel 20.
The encryption seat 8 with be provided with between the rotation lag 9 and be used for preventing rotate lag 9 breaks away from the spacing rand 21 of encryption seat 8, first spacing groove 24 has been seted up on the rotation lag 9 inner wall, be provided with on the encryption seat 8 with the second spacing groove 25 that first spacing groove 24 position mutually matches, spacing rand 21 cover is located encryption seat 8 is located second spacing groove 25 department and lateral wall with first spacing groove 24 inner wall offset top, spacing rand 21 is c type spacing rand 21, spacing rand 21 is the metal rand, can inwards take place deformation after the atress for spacing rand 21 diameter reduces.
The third limiting groove 26 is formed in the inner wall of the rotary protective sleeve 9, the limiting clamp spring 22 used for limiting the connecting piece 12 to slide downwards and separate from the rotary protective sleeve 9 is arranged at the position, located at the third limiting groove 26, in the rotary protective sleeve 9, of the connecting piece, and the upper end of the limiting clamp spring 22 abuts against the lower end face of the connecting piece 12 when the connecting piece 12 is arranged in the encryption cavity.
A sealing ring 23 is arranged between the rotary protecting sleeve 9 and the encryption seat 8.
Working principle:
and (2) mounting: firstly, a limit clamp spring 22 is installed in the rotary protecting sleeve 9, a compression spring 15 and a first propping piece 14 are placed in the transmission groove 13, then the connecting piece 12 is placed on the transmission piece 10 (the upper end of the connecting piece 12 is positioned in the encryption groove 11) so that the transmission groove 13 corresponds to the transmission through hole 16, then a second propping piece 18 and a first magnet 17 are placed in the transmission through hole 16, and then the rotary protecting sleeve 9 is connected to the encryption seat 8 through threads, so that the inner wall of the rotary protecting sleeve 9 can seal the transmission through hole 16, and at the moment, the upper end face of the limit clamp spring 22 butts against the lower end face of the connecting piece 12, so that the connecting piece 12 can be limited to slide downwards and separate from the transmission piece 10; then, the transmission seat is provided with a second limit groove 25, a limit collar 21 is sleeved on the second limit groove 25, a sealing ring 23 is sleeved above the second limit groove 25, finally, a worker compresses the limit collar 21, so that the limit collar 21 deforms into the second limit groove 25, the upper end of the mounting seat penetrates into the rotary protecting sleeve 9 from bottom to top, and the limit collar 21 is reset after no force is applied to the limit collar 21 until the first limit groove 24 corresponds to the second limit groove 25, and at the moment, the limit collar 21 is positioned between the first limit groove 24 and the second limit groove 25, so that the mounting seat is limited to slide up and down again between the rotary protecting sleeve 9, and meanwhile, the mounting seat and the rotary protecting sleeve 9 can rotate relatively.
The method comprises the following steps:
when the novel valve rod sealing device is used, the mounting seat is mounted on the valve cover 2 through the bolt, the valve rod 7 penetrates into the encrypting cavity upwards at the moment, the upper end of the valve rod 7 is matched with the connecting piece 12 (as shown in the figure, the lower end of the connecting piece 12 is provided with a connecting groove, the upper end of the valve rod 7 penetrates into the connecting groove, and the valve rod 7 can be driven to rotate when the connecting piece 12 rotates).
When the operator needs to control the opening and closing of the valve, the hand wheel 20 is sleeved on the rotation protecting sleeve 9 and the transmission piece 10 (in this embodiment, the upper end of the transmission piece 10 is a hexagonal end and is matched with the hand wheel 20, the hand wheel 20 drives the transmission piece 10 to rotate when rotating), wherein the second magnet 19 is arranged in the hand wheel 20, when the first magnet 17 and the second magnet 19 are close to each other, rejection occurs, the rotation hand wheel 20 drives the transmission piece 10 to rotate, when the transmission through hole 16 corresponds to the transmission groove 13, the first magnet 17 drives the second abutting piece 18 to slide, so that the second abutting piece 18 abuts against the first abutting piece 14, the elasticity of the compression spring 15 is overcome, the compression spring 15 is compressed, one end of the second abutting piece 18 penetrates into the transmission groove 13, and when the transmission piece 10 rotates, the transmission piece 10 drives the second abutting piece 18 to rotate, the second abutting piece 18 drives the connecting piece 12 to rotate, thereby realizing the function of the transmission piece 12, and the valve rod 7 drives the valve rod 7 to rotate, and the valve plate 7 is driven to open and close, and the valve is controlled.
When the fluid is not required to be controlled to be opened and closed, a worker takes down the hand wheel 20, and at the moment, under the action of the compression spring 15, the compression spring 15 drives the first propping piece 14 to reset, and the first propping piece 14 drives the second propping piece 18 to be far away from the transmission groove 13 so as to reset; at this time, the transmission part 10 and the connecting part 12 can not be transmitted any more, if the transmission part 10 is rotated again at this time, the transmission part 10 can not drive the connecting part 12 to rotate, that is, an idle running effect can occur, and therefore, the valve can be prevented from being opened and closed by irrelevant personnel in a misoperation mode, and damage or economic loss of the valve can be prevented.
The encryption device of this embodiment may also be installed on other types of valves, and the above description is only an embodiment using the technical content of this creation, and any modification and variation made by those skilled in the art using this creation belongs to the patent scope of this creation and is not limited to the disclosure of the embodiments.

Claims (10)

1. An improved encryption device, characterized in that: the valve rod is arranged on the valve cover in a detachable mode, the lower end of the valve rod is provided with an encryption seat, a rotary protecting sleeve is arranged on the encryption seat in a rotary mode, the rotary protecting sleeve is arranged on the rotary protecting sleeve in a transmission mode and used for being matched with a hand wheel to form an encryption groove of an encryption cavity, the encryption groove is arranged on the transmission part in a rotary mode, the encryption groove is used for being matched with a valve rod penetrating into the encryption cavity upwards, the connecting part drives the valve rod to rotate, and the connecting part and the transmission part are arranged in a releasable mode, and the locking transmission device is used for being transmitted between the connecting part and the transmission part.
2. An improved encryption device according to claim 1, wherein: the lock-up transmission includes: the periphery of the connecting piece is provided with at least one transmission groove, a first propping piece is slidably/rollably arranged in the transmission groove, and an elastic piece with one end propping against the first propping piece and the other end propping against the side wall of the transmission groove is arranged in the transmission groove;
the transmission part is provided with at least one transmission through hole corresponding to the transmission groove, a first magnetic part can be slidably arranged in the transmission through hole, a second propping part can be slidably arranged in the transmission through hole, one end of the second propping part is propped against the first magnetic part, the other end of the second propping part is propped against the side wall of the connecting part, when the transmission part rotates for a certain angle, the other end of the second propping part is propped against the first propping part, and one end of the second propping part can slide into the transmission groove;
the rotary protective sleeve is externally provided with a second magnetic piece which is matched with the first magnetic piece and used for driving the first magnetic piece to slide towards the direction of the connecting piece.
3. An improved encryption device according to claim 2, wherein: the first propping piece is a ball, and one end of the second propping piece propping against the side wall of the connecting piece is an arc-shaped end head.
4. An improved encryption device according to claim 1, wherein: the encryption seat with be provided with between the rotation lag and be used for preventing the rotation lag breaks away from the spacing rand of encryption seat, first spacing groove has been seted up on the rotation lag inner wall, encrypt be provided with on the seat with the second spacing groove that first spacing groove position mutually matches, spacing rand cover is located encrypt on the seat and be located second spacing groove department and lateral wall with first spacing groove inner wall offset top, spacing rand is c spacing rand.
5. An improved encryption device according to claim 1, wherein: the third limiting groove is formed in the inner wall of the rotary protective sleeve, the limiting clamp spring used for limiting the connecting piece to slide downwards and separate from the rotary protective sleeve is arranged at the position, located in the third limiting groove, of the rotary protective sleeve, and the upper end of the limiting clamp spring abuts against the lower end face of the connecting piece when the connecting piece is arranged in the encryption cavity.
6. An improved encryption device according to claim 1, wherein: and a sealing element is arranged between the rotary protective sleeve and the encryption seat.
7. The utility model provides a gate valve with improved generation encryption device, includes the valve body, set up in valve gap on the valve body, set up in inlet channel and play water channel in the valve body, set up in inlet channel with valve seat between the water channel, set up in between the water channel with valve plate that the valve seat matched with in order to control fluid and open and close, set up in between the water channel with the water channel lower extreme with valve plate connection upper end wears out valve body and valve gap's valve rod, can dismantle set up in be used for restricting on the valve gap valve rod pivoted encryption device, its characterized in that: the encrypting device comprises an encrypting seat, a rotary protecting sleeve, a transmission part, an encrypting groove, a connecting part, a locking transmission device and a locking transmission device, wherein the encrypting seat is detachably arranged on the valve cover, the lower end of the encrypting seat is used for the valve rod to upwards penetrate through, the rotary protecting sleeve is rotatably arranged on the encrypting seat, the transmission part is detachably arranged on the rotary protecting sleeve, the encrypting groove is formed on the transmission part and used for being matched with the encrypting seat to form an encrypting cavity, the connecting part is rotatably arranged in the encrypting cavity and used for being matched with the valve rod which upwards penetrates into the encrypting cavity, the connecting part is used for driving the valve rod to rotate, and the locking transmission device is arranged between the connecting part and the transmission part.
8. A gate valve with improved encryption device as set forth in claim 7, wherein: the lock-up transmission includes: the periphery of the connecting piece is provided with at least one transmission groove, a first propping piece is slidably/rollably arranged in the transmission groove, and an elastic piece with one end propping against the first propping piece and the other end propping against the side wall of the transmission groove is arranged in the transmission groove;
the transmission part is provided with at least one transmission through hole corresponding to the transmission groove, a first magnetic part can be slidably arranged in the transmission through hole, a second propping part can be slidably arranged in the transmission through hole, one end of the second propping part is propped against the first magnetic part, the other end of the second propping part is propped against the side wall of the connecting part, when the transmission part rotates for a certain angle, the other end of the second propping part is propped against the first propping part, and one end of the second propping part can slide into the transmission groove;
the rotary protective sleeve is externally provided with a second magnetic piece which is matched with the first magnetic piece and used for driving the first magnetic piece to slide towards the direction of the connecting piece.
9. A gate valve with improved encryption device as set forth in claim 8, wherein: and a hand wheel is sleeved on the transmission part and the rotation protecting sleeve, and the second magnetic part is arranged on the hand wheel.
10. A gate valve with improved encryption device as set forth in claim 7, wherein: the encryption seat is detachably arranged on the valve cover through bolts.
CN202223599360.7U 2022-12-29 2022-12-29 Improved encryption device and gate valve with same Active CN219263216U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223599360.7U CN219263216U (en) 2022-12-29 2022-12-29 Improved encryption device and gate valve with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223599360.7U CN219263216U (en) 2022-12-29 2022-12-29 Improved encryption device and gate valve with same

Publications (1)

Publication Number Publication Date
CN219263216U true CN219263216U (en) 2023-06-27

Family

ID=86869925

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223599360.7U Active CN219263216U (en) 2022-12-29 2022-12-29 Improved encryption device and gate valve with same

Country Status (1)

Country Link
CN (1) CN219263216U (en)

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