CN218468378U

CN218468378U - Anti-misoperation gate valve

Info

Publication number: CN218468378U
Application number: CN202222643209.2U
Authority: CN
Inventors: 项忠伟; 项有淼; 吴立民
Original assignee: Zhejiang Zhengpeng Valve Co ltd
Current assignee: Zhejiang Zhengpeng Valve Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-02-10
Anticipated expiration: 2032-10-09

Abstract

The utility model provides a prevent maloperation gate valve relates to gate valve technical field, which comprises a valve body, the top fixedly connected with upper bracket of valve body, upper bracket's top is rotated and is connected with the swivel becket, it is connected with the carousel to rotate on the swivel becket, the valve rod has been cup jointed to the screw thread on the carousel. The utility model has reasonable structure, and through the arrangement of the first limit component and the second limit component, the manual touching of the turntable is avoided after the gate valve is completely closed, so that the valve rod moves, the gate valve is not completely closed, the self-locking function is realized, and the manual misoperation is prevented; when the gate valve is opened, the pawl is manually stirred, so that a limiting hole in the pawl slides into the limiting pin, the pawl is limited through the limiting pin, the pawl is relieved from the ratchet wheel, the rotary table can rotate reversely, the structure is simple, the operation is convenient, the production and the manufacture are convenient, and the misoperation prevention can be realized.

Description

Anti-misoperation gate valve

Technical Field

The utility model relates to a gate valve technical field especially relates to a prevent maloperation gate valve.

Background

The gate valve is an opening and closing member gate plate, the moving direction of the gate plate is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed. The common gate valve is opened and closed through a hand wheel, and closing and opening actions can be realized only by rotating the hand wheel when the gate valve is used. But when the constructor leaves the gate valve, and there is not any dead equipment of protection lock, in case other people mistake hand wheel rotation.

For example, chinese patent publication No. CN212868705U discloses an anti-misoperation gate valve, and it includes that valve body and lid close the valve gap in the valve body upper end, be provided with the valve plate in the valve body, the one end that the valve body was kept away from to the valve gap is provided with the support, threaded hole has been seted up towards the one end of valve body to the support, screw hole female connection has the valve rod, the one end that the valve rod passed the valve gap stretches into in the valve body and rotates with the valve plate to be connected, be provided with restriction valve rod pivoted operation structure on the valve gap, the fixed orifices that supplies the valve rod to pass is seted up to the valve gap, the operation groove has been seted up to the inner circumference face of fixed orifices, operation structure is including setting up spring and the action bars in the operation inslot, open-ended terminal surface and action bars butt are kept away from respectively with the operation groove in the both ends of spring, set up the slot that supplies the action bars embedding on the valve rod outer circumference, be provided with the operating part that the drive action bars removed on the valve gap, this application has the effect of preventing valve rod pivoted.

When the valve rod is driven to lift, the misoperation preventing gate valve drives the operating block to move, so that the operating block is sequentially separated from the slot and the through hole, then the fixed ring block is driven to rotate to limit the movement of the operating block, and then the hand wheel is driven to rotate, so that the valve rod and the valve plate are lifted or lowered; when slot and operation groove align, the drive retainer ring piece rotates, and spring reset drive action bars passes the through-hole and imbeds in the slot, and the restriction valve rod rotates, realizes spacing to the relative position of valve rod, and operation structure is complicated, is unfavorable for production and processing and assembly to through the corresponding part of manual multiple operation, the operation is complicated, wastes time and energy, consequently, this application provides one kind and prevents the maloperation gate valve and satisfy the user demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the defects of the prior art, and provides an anti-misoperation gate valve, which is characterized in that a first limiting component and a second limiting component are arranged, so that after the gate valve is completely closed, the manual touching of a rotary disc is avoided, a valve rod is moved, the gate valve is not completely closed, a self-locking function is realized, and manual misoperation is prevented; when the gate valve is opened, the pawl is manually stirred, so that a limiting hole in the pawl slides into the limiting pin, the pawl is limited through the limiting pin, the pawl is relieved from the ratchet wheel, the rotary table can rotate reversely, the structure is simple, the operation is convenient, the production and the manufacture are convenient, and the misoperation prevention can be realized.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-misoperation gate valve comprises a valve body, wherein the top of the valve body is fixedly connected with an upper support frame, the top of the upper support frame is rotatably connected with a rotating ring, the rotating ring is rotatably connected with a rotating disc, and a valve rod is sleeved on the rotating disc in a threaded manner; the limiting mechanism is characterized by further comprising a first limiting component for limiting the valve rod during upward movement and a second limiting component for limiting the valve rod during limiting, wherein the first limiting component is released from the limiting component, the first limiting component is connected with the turntable and the upper support frame respectively, and the second limiting component is connected with the upper support frame.

Preferably, the first limiting component comprises a ratchet wheel fixedly connected to the bottom of the rotary table, the top of the upper support frame is fixedly connected with a fixing shaft, the fixing shaft is rotatably connected with a pawl, the pawl is matched with the ratchet wheel, the bottom of the pawl is fixedly connected with a torsion spring, the top of the upper support frame is provided with a slot, and one end of the torsion spring is inserted into the slot.

Preferably, a countersunk hole is formed in the bottom of the ratchet wheel, a first countersunk bolt is arranged in the countersunk hole, and the first countersunk bolt is in threaded connection with the bottom of the turntable.

Preferably, the top end of the fixed shaft is provided with a mounting hole, a second countersunk head bolt is arranged in the mounting hole, and the second countersunk head bolt is in threaded connection with the top of the upper support frame.

Preferably, a plurality of light-weight holes are formed at the top of the pawl.

Preferably, the second limiting component comprises a sliding hole formed in the top of the upper support frame, a limiting pin is connected to the sliding hole in a sliding mode, a fixing plate is sleeved on the limiting pin and fixedly connected with the upper support frame, a limiting spring is fixedly connected between the fixing plate and the limiting pin, a limiting hole is formed in the top of the pawl, and the limiting pin is matched with the limiting hole.

Preferably, a tapered sliding groove is formed in the inner wall of the bottom of the limiting hole, and the end of the limiting pin is of a spherical structure.

Preferably, the fixing plate is fixedly connected with the upper support frame through a fixing bolt.

The beneficial effects of the utility model reside in that:

(1) The utility model discloses a set up first spacing subassembly and second spacing subassembly, when rotating the carousel, make the valve rod move downwards, the cooperation valve clack is closed to the valve body, the carousel drives the ratchet and rotates this moment, the pawl cooperates torque spring not to be spacing to the carousel, when the carousel counter-rotating, the pawl is spacing ratchet and carousel this moment, the benefit of setting up like this is, after the gate valve is closed completely, avoid the people to touch the carousel, make the valve rod move, lead to the gate valve not to close completely, realized the self-locking function, and prevent the people from misoperation; when the gate valve is opened, the pawl is stirred manually for spacing hole on the pawl slides to the spacer pin in, carry on spacingly through the spacer pin to the pawl, thereby realize that the pawl is relieved spacingly to the ratchet, make the carousel can the antiport, the anti-misoperation gate valve of this application simple structure, the simple operation, the manufacturing is convenient, can realize preventing the maloperation, and do not influence opening and closing of gate valve.

(2) The utility model discloses a set up first countersunk head bolt and second countersunk head bolt, the ratchet of being convenient for and the installation of carousel realize dismantled and assembled with the installation of upper bracket, and easy dismounting, the production and the manufacturing of the gate valve of being convenient for, the assembly is simple, and is convenient.

To sum up, the utility model has the advantages of simple structure, simple operation, production manufacturing are convenient, can realize preventing maloperation.

Drawings

FIG. 1 is a schematic perspective view of an anti-misoperation gate valve;

FIG. 2 is an enlarged perspective view of a portion of the anti-misoperation gate valve;

FIG. 3 is a partially broken-away enlarged structural schematic view of the anti-misoperation gate valve;

FIG. 4 is an enlarged perspective view of the first spacing assembly, the second spacing assembly, and the upper support frame in cooperation with a first viewing angle;

fig. 5 is an enlarged perspective view of the first limiting assembly, the second limiting assembly, and the upper support frame in cooperation with a second viewing angle.

Reference numerals: 1. a valve body; 2. an upper support frame; 3. a valve stem; 4. a turntable; 5. a first limit component; 6. a second limiting component; 7. a ratchet wheel; 8. a pawl; 9. a first countersunk bolt; 10. a torsion spring; 11. a rotating ring; 12. a spacing pin; 13. a limiting spring; 14. a limiting hole; 15. a countersunk hole; 16. a lightweight hole; 17. a second countersunk bolt; 18. a fixing plate; 19. fixing the bolt; 20. a tapered chute; 21. and (4) a slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example one

As shown in fig. 1 and 2, the embodiment provides an anti-misoperation gate valve, which includes a valve body 1, an upper support frame 2 is fixedly connected to the top of the valve body 1, a rotating ring 11 is rotatably connected to the top of the upper support frame 2, a rotating disc 4 is rotatably connected to the rotating ring 11, a valve rod 3 is sleeved on the rotating disc 4 through threads, the valve body 1 is in the prior art, a valve flap is arranged in the valve body 1, the valve flap is used for opening and closing the gate valve, the valve flap is rotatably mounted with the valve rod 3, and the valve flap is matched with a sealing groove and a sliding groove in the valve body 1; the valve body 1 is characterized by further comprising a first limiting component 5 for limiting the position of the valve rod 3 when the valve rod 3 moves upwards and a second limiting component 6 for limiting the position of the valve rod 3 when the first limiting component 5 is removed from the position of the valve rod 3, the first limiting component 5 is respectively connected with the rotary table 4 and the upper support frame 2, the second limiting component 6 is connected with the upper support frame 2, the rotary table 4 is rotated, the rotary table 4 is matched with the rotary ring 11 to rotate on the upper support frame 2, and when the rotary table 4 rotates, the valve rod 3 is driven to move downwards, so that the valve clack is closed to the valve body 1.

As an implementation manner in this embodiment, as shown in fig. 1 to 5, the first position-limiting component 5 includes a ratchet wheel 7 fixedly connected to the bottom of the rotary table 4, a fixed shaft is fixedly connected to the top of the upper support frame 2, a pawl 8 is rotatably connected to the fixed shaft, the pawl 8 is adapted to the ratchet wheel 7, both the pawl 8 and the ratchet wheel 7 are in the prior art, a torsion spring 10 is fixedly connected to the bottom of the pawl 8, a slot 21 is formed in the top of the upper support frame 2, one end of the torsion spring 10 is inserted into the slot 21, the second position-limiting component 6 includes a sliding hole formed in the top of the upper support frame 2, a position-limiting pin 12 is slidably connected in the sliding hole, a fixed plate 18 is sleeved on the position-limiting pin 12, the fixed plate 18 is fixedly connected to the upper support frame 2, a limiting spring 13 is fixedly connected between a fixing plate 18 and a limiting pin 12, a limiting hole 14 is formed in the top of a pawl 8, the limiting pin 12 is matched with the limiting hole 14, the fixing plate 18 is fixedly connected with an upper support frame 2 through a fixing bolt 19, when a rotary disc 4 is rotated, a valve rod 3 moves downwards, a valve body is closed by matching with a valve clack, the rotary disc 4 drives a ratchet 7 to rotate at the moment, the pawl 8 is not limited by matching with a torsion spring 10 to the rotary disc 4, when the rotary disc 4 rotates reversely, the ratchet 7 and the rotary disc 4 are limited by the pawl 8 at the moment, and the arrangement has the advantages that after the gate valve is completely closed, the valve rod 3 is prevented from being manually touched, the gate valve is prevented from moving, the gate valve is not completely closed, the self-locking function is realized, and manual misoperation is prevented; when the gate valve is opened, pawl 8 is stirred manually for spacing hole 14 on the pawl 8 slides to spacer pin 12 in, carries on spacingly to pawl 8 through spacer pin 12, thereby realizes that pawl 8 relieves spacingly to ratchet 7, makes carousel 4 can the antiport, and the maloperation of preventing of this application gate valve simple structure, the simple operation, the manufacturing is convenient, can realize preventing the maloperation, and does not influence opening and closing of gate valve.

As an implementation manner in this embodiment, as shown in fig. 4 and fig. 5, a countersunk hole 15 is formed in the bottom of the ratchet 7, a first countersunk bolt 9 is disposed in the countersunk hole 15, the first countersunk bolt 9 is screwed on the bottom of the turntable 4, a mounting hole is formed in the top end of the fixing shaft, a second countersunk bolt 17 is disposed in the mounting hole, the second countersunk bolt 17 is screwed on the top of the upper support frame 2, and the first countersunk bolt 9 and the second countersunk bolt 17 are disposed to facilitate the mounting of the ratchet 7 and the turntable 4, facilitate the mounting of the fixing shaft and the upper support frame 2, achieve the dismounting, and facilitate the production and manufacturing of the gate valve, the mounting is simple and convenient.

As an embodiment of the present embodiment, as shown in fig. 4, a plurality of lightening holes 16 are opened at the top of the ratchet 8, which is advantageous in reducing the weight of the ratchet 8, the entire weight of the gate valve, and the weight.

As an implementation manner in this embodiment, as shown in fig. 5, a tapered sliding groove 20 is formed on the inner wall of the bottom of the limiting hole 14, and the end of the limiting pin 12 is in a spherical structure, so that the advantage of facilitating the sliding of the limiting pin 12 into the limiting hole 14 is provided, and the operation convenience is improved.

Working procedure

When the rotary disc 4 is rotated, the valve rod 3 moves downwards, the valve body is closed by matching with the valve clack, the rotary disc 4 drives the ratchet wheel 7 to rotate, the pawl 8 is not limited by matching with the torsion spring 10 to the rotary disc 4, and when the rotary disc 4 rotates reversely, the ratchet wheel 7 and the rotary disc 4 are limited by the pawl 8, so that the self-locking function is realized, and the manual misoperation is prevented as the valve rod 3 is prevented from moving due to the fact that the valve rod is not completely closed because the rotary disc 4 is prevented from being manually touched after the gate valve is completely closed; when the gate valve is opened, pawl 8 is stirred manually for spacing hole 14 on the pawl 8 slides to spacer pin 12 in, carries on spacingly to pawl 8 through spacer pin 12, thereby realizes that pawl 8 relieves spacingly to ratchet 7, makes carousel 4 can the antiport, this application prevent mistake operation gate valve simple structure, the simple operation, the manufacturing is convenient, can realize preventing the maloperation, and do not influence opening and closing of gate valve.

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

Claims

1. The anti-misoperation gate valve comprises a valve body and is characterized in that the top of the valve body is fixedly connected with an upper support frame, the top of the upper support frame is rotatably connected with a rotating ring, the rotating ring is rotatably connected with a rotating disc, and a valve rod is sleeved on the rotating disc in a threaded manner;

the limiting mechanism comprises a rotary table, an upper support frame and a valve rod, and is characterized by further comprising a first limiting assembly for limiting when the valve rod moves upwards and a second limiting assembly for limiting when the first limiting assembly is released from limiting when the valve rod is limited, wherein the first limiting assembly is respectively connected with the rotary table and the upper support frame, and the second limiting assembly is connected with the upper support frame.

2. The anti-misoperation gate valve according to claim 1, wherein the first limiting component comprises a ratchet wheel fixedly connected to the bottom of the turntable, a fixed shaft is fixedly connected to the top of the upper support frame, a pawl is rotatably connected to the fixed shaft, the pawl is adapted to the ratchet wheel, a torsion spring is fixedly connected to the bottom of the pawl, a slot is formed in the top of the upper support frame, and one end of the torsion spring is inserted into the slot.

3. The anti-misoperation gate valve according to claim 2, wherein a counter bore is formed in the bottom of the ratchet wheel, a first counter bolt is arranged in the counter bore, and the first counter bolt is in threaded connection with the bottom of the rotary table.

4. The anti-misoperation gate valve according to claim 2, wherein a mounting hole is formed in the top end of the fixing shaft, a second countersunk head bolt is arranged in the mounting hole, and the second countersunk head bolt is in threaded connection with the top of the upper support frame.

5. The anti-misoperation gate valve according to claim 2, wherein the top of the pawl is provided with a plurality of light-weight holes.

6. The anti-misoperation gate valve according to claim 2, wherein the second limiting component comprises a sliding hole formed in the top of the upper support frame, a limiting pin is connected in the sliding hole in a sliding manner, a fixing plate is sleeved on the limiting pin, the fixing plate is fixedly connected with the upper support frame, a limiting spring is fixedly connected between the fixing plate and the limiting pin, a limiting hole is formed in the top of the pawl, and the limiting pin is matched with the limiting hole.

7. The anti-misoperation gate valve according to claim 6, wherein the inner wall of the bottom of the limiting hole is provided with a tapered sliding groove, and the end of the limiting pin is of a spherical structure.