CN220488308U

CN220488308U - Butterfly valve with self-locking function for nuclear power

Info

Publication number: CN220488308U
Application number: CN202321325894.2U
Authority: CN
Inventors: 韩健莉; 尤辉宏; 阮淋波
Original assignee: Nantong Guodian Valve Technology Co ltd
Current assignee: Nantong Guodian Valve Technology Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2024-02-13
Anticipated expiration: 2033-05-29

Abstract

The utility model discloses a self-locking butterfly valve for nuclear power, which relates to the technical field of butterfly valves and is provided with a valve body and a connecting mechanism arranged above the valve body, wherein the connecting mechanism comprises a rotating assembly and a clamping assembly; the rotary assembly comprises a valve seat, a hand wheel, a first gear, a second gear and a connecting shaft, wherein the valve seat is arranged at the upper end of the valve body, the hand wheel is arranged on the side wall of the valve seat, the first gear is arranged at the tail end of the hand wheel, the second gear is connected with the first gear in a meshed manner, and the connecting shaft is arranged in the second gear; the clamping assembly comprises a positioning hole; through setting up the seal groove, the connecting axle that sets up carries out the action that opens and shuts to the case when rotating the work, then the case can carry out the card action between through rubber bolt and seal groove and the disk seat, and the rubber bolt adopts rubber material to constitute, when providing elasticity support, guarantees the leakproofness, avoids long-time friction to cause wearing and tearing between the equipment.

Description

Butterfly valve with self-locking function for nuclear power

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with self-locking function for nuclear power.

Background

The butterfly valve is also called as a flap valve, and is a simple-structure regulating valve, the butterfly valve capable of being used for the on-off control of low-pressure pipeline medium is characterized in that a closing member is a disc, the butterfly valve rotates around a valve shaft to achieve the purpose of opening and closing, the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive mediums, slurry, oil products, liquid metal, radioactive mediums and the like, the butterfly valve mainly plays the roles of cutting off and throttling on a pipeline, and the butterfly valve opening and closing member is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve in a valve body, so that the purpose of opening and closing or regulating is achieved.

However, in the prior art, the butterfly valve for nuclear power is adjusted by rotating the valve rod, and in the long-term use process, the valve rod is easy to loosen due to abrasion, and at the moment, the butterfly plate can deflect at a certain angle under the impact of fluid, so that the flow control is changed, the use requirement of people is not met, and the butterfly valve with self-locking for nuclear power is needed.

Disclosure of Invention

The utility model aims to provide a butterfly valve with self-locking function for nuclear power, which solves the problems that the butterfly valve for nuclear power is regulated by rotating a valve rod, the valve rod is easy to loosen due to abrasion in the long-term use process, and when the butterfly valve is impacted by fluid, a butterfly plate can deflect at a certain angle, so that the flow control is changed, and the use requirement of people is not met.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the butterfly valve with the self-locking function for the nuclear power comprises a valve body and a connecting mechanism arranged above the valve body, wherein the connecting mechanism comprises a rotating assembly and a clamping assembly;

the rotary assembly comprises a valve seat, a hand wheel, a first gear, a second gear and a connecting shaft, wherein the valve seat is arranged at the upper end of the valve body, the hand wheel is arranged on the side wall of the valve seat, the first gear is arranged at the tail end of the hand wheel, the second gear is connected with the first gear in a meshed manner, and the connecting shaft is arranged in the second gear;

the clamping assembly comprises a positioning hole, a connecting support, a mounting support, a motor, a connecting gear, a gear rod, a connecting hole and a limiting rod, wherein the positioning hole is formed in the upper end face of the valve seat, the connecting support is arranged at the upper end of the connecting shaft, the mounting support is arranged on the upper end face of the connecting support, the motor is fixedly connected with the inner wall of the mounting support, the connecting gear is arranged at the tail end of the motor, the gear rod is connected with the inner engagement of the connecting gear, the lower end of the gear rod is located in the connecting hole of the mounting support, and the limiting rod is arranged at the upper end of the mounting support.

Preferably, the inner wall of the valve body is provided with a sealing groove, the lower end of the connecting shaft is provided with a valve core, and the edge of the valve core is provided with a rubber bolt.

Preferably, the positioning holes are arranged in four groups, and the four groups of positioning holes are distributed in a matrix along the upper end face of the valve seat.

Preferably, the gear rod forms a sliding structure with the connecting hole through the motor and the connecting gear, and the upper end of the gear rod is in fit connection with the limiting rod.

Preferably, the clamping block forms a sliding structure with the connecting seat through the threaded shaft, and forms a clamping structure with the installation pipeline through the clamping groove.

Preferably, the valve core is fixedly connected with the connecting shaft, and the valve core and the valve seat form a clamping structure through the rubber bolt and the sealing groove.

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

1. through setting up the locating hole, the gear lever and the connecting gear that set up are the meshing and connect, then the motor drives connecting gear and rotates the work, realizes that the gear lever carries out sliding operation at the connecting hole, then the lower extreme of gear lever carries out the card effect with the locating hole, and the connecting axle is fixed connection with the linking bridge, when the lower extreme of gear lever carries out the card with the locating hole, can carry out certain fixedly to the connecting axle, guarantee can carry out the fixed effect of auto-lock when carrying out the connecting axle and rotate 90, guarantee the stability when opening the effect to equipment.

2. Through setting up the seal groove, the connecting axle that sets up carries out the action that opens and shuts to the case when rotating the work, then the case can carry out the card action between through rubber bolt and seal groove and the disk seat, and the rubber bolt adopts rubber material to constitute, when providing elasticity support, guarantees the leakproofness, avoids long-time friction to cause wearing and tearing between the equipment.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a butterfly valve with self-locking function for nuclear power.

Fig. 2 is a schematic diagram of the internal structure of a valve body of a butterfly valve with self-locking function for nuclear power.

Fig. 3 is a schematic diagram of a valve core structure of a butterfly valve with self-locking function for nuclear power.

Fig. 4 is a schematic diagram of a connecting bracket structure of a butterfly valve with self-locking function for nuclear power.

In the figure: 1. a valve body; 2. a valve seat; 3. a hand wheel; 4. a first gear; 5. a second gear; 6. a connecting shaft; 7. positioning holes; 8. a connecting bracket; 9. a mounting bracket; 10. a motor; 11. a connecting gear; 12. a gear lever; 13. a connection hole; 14. a limit rod; 15. sealing grooves; 16. a valve core; 17. rubber bolts.

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.

Example 1

1-4, the butterfly valve with self-locking for nuclear power in the illustration comprises a valve body 1 and a connecting mechanism arranged above the valve body 1, wherein the connecting mechanism comprises a rotating component and a clamping component;

the rotating assembly comprises a valve seat 2, a hand wheel 3, a first gear 4, a second gear 5 and a connecting shaft 6, the valve seat 2 is arranged at the upper end of the valve body 1, the hand wheel 3 is arranged on the side wall of the valve seat 2, the first gear 4 is arranged at the tail end of the hand wheel 3, the second gear 5 is connected with the first gear 4 in a meshed manner, and the connecting shaft 6 is arranged in the second gear 5;

the clamping assembly comprises a positioning hole 7, a connecting bracket 8, a mounting bracket 9, a motor 10, a connecting gear 11, a gear rod 12, a connecting hole 13 and a limiting rod 14, wherein the positioning hole 7 is arranged on the upper end face of the valve seat 2, the connecting bracket 8 is arranged at the upper end of the connecting shaft 6, the mounting bracket 9 is arranged on the upper end face of the connecting bracket 8, the motor 10 is fixedly connected with the inner wall of the mounting bracket 9, the connecting gear 11 is arranged at the tail end of the motor 10, the gear rod 12 is connected with the inner engagement of the connecting gear 11, the connecting hole 13 is arranged at the lower end of the gear rod 12 and is positioned in the inner mounting bracket 9, and the limiting rod 14 is arranged at the upper end of the mounting bracket 9.

As shown in fig. 2, the connecting shaft 6 and the hand wheel 3 form a rotating structure through the first gear 4 and the second gear 5, and the connecting shaft 6 can rotate between the first gear 4 and the second gear 5 and the hand wheel 3 for rotating and opening and closing the valve core 16 inside the device, so that the operation is simple.

As shown in fig. 4, the positioning holes 7 are arranged in four groups, the four groups of positioning holes 7 are distributed in a matrix along the upper end face of the valve seat 2, the arranged positioning holes 7 are distributed in a matrix along the upper end face of the valve seat 2, and the adjacent positions of the positioning holes 7 are 90 degrees.

Wherein, as shown in fig. 4, gear pole 12 constitutes sliding structure through motor 10 and connecting gear 11 and connecting hole 13, the upper end and the gag lever post 14 of gear pole 12 are the laminating and are connected, gear pole 12 and connecting gear 11 that set up are the meshing and are connected, then motor 10 drives connecting gear 11 and rotate the work, realize that gear pole 12 carries out sliding operation at connecting hole 13, then the lower extreme and the locating hole 7 of gear pole 12 carry out the block effect, and connecting axle 6 and linking bridge 8 are fixed connection, when the lower extreme and the locating hole 7 of gear pole 12 carry out the block, can carry out certain fixedly to connecting axle 6, guarantee to carry out the effect that the auto-lock is fixed when rotating 90 at connecting axle 6, guarantee the stability when opening the effect to equipment.

Example 2

As shown in fig. 1, 2 and 4, in this embodiment, in example 1, a seal groove 15 is formed in the inner wall of the valve body 1, a valve element 16 is mounted at the lower end of the connecting shaft 6, and a rubber plug 17 is mounted at the edge of the valve element 16.

As shown in fig. 4, the valve core 16 is fixedly connected with the connecting shaft 6, the valve core 16 forms a clamping structure with the valve seat 2 through the rubber bolt 17 and the sealing groove 15, the valve core 16 is opened and closed when the connecting shaft 6 rotates, then the valve core 16 can perform clamping action with the valve seat 2 through the rubber bolt 17 and the sealing groove 15, the rubber bolt 17 is made of rubber materials, and the sealing performance is ensured while elastic force support is provided.

When in use, the utility model is characterized in that: firstly, the gear rod 12 and the connecting gear 11 are in meshed connection, then the motor 10 drives the connecting gear 11 to rotate, the gear rod 12 slides in the connecting hole 13, then the lower end of the gear rod 12 and the positioning hole 7 are in clamping action, the connecting shaft 6 and the connecting support 8 are fixedly connected, when the lower end of the gear rod 12 and the positioning hole 7 are clamped, the connecting shaft 6 can be fixed to a certain extent, the self-locking fixing effect can be carried out when the connecting shaft 6 rotates by 90 degrees, and the stability when the equipment is opened and cooperated is ensured.

Finally, the connecting shaft 6 can rotate between the first gear 4 and the second gear 5 and the hand wheel 3, so as to rotate the valve core 16 inside the device to open and close, the operation is simple, the connecting shaft 6 can rotate to open and close the valve core 16, the valve core 16 can clamp the valve seat 2 through the rubber bolt 17 and the sealing groove 15, the rubber bolt 17 is made of rubber materials, and the sealing performance is ensured while the elastic force support is provided.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. The utility model provides a butterfly valve with auto-lock for nuclear power, includes valve body (1) and sets up the coupling mechanism in valve body (1) top, its characterized in that: the connecting mechanism comprises a rotating assembly and a clamping assembly;

the rotary assembly comprises a valve seat (2), a hand wheel (3), a first gear (4), a second gear (5) and a connecting shaft (6), wherein the valve seat (2) is arranged at the upper end of the valve body (1), the hand wheel (3) is arranged on the side wall of the valve seat (2), the first gear (4) is arranged at the tail end of the hand wheel (3), the second gear (5) is connected with the first gear (4) in a meshed mode, and the connecting shaft (6) is arranged in the second gear (5);

the clamping assembly comprises a positioning hole (7), a connecting support (8), a mounting support (9), a motor (10), a connecting gear (11), a gear rod (12), a connecting hole (13) and a limiting rod (14), wherein the positioning hole (7) is arranged on the upper end face of the valve seat (2), the connecting support (8) is arranged at the upper end of the connecting shaft (6), the mounting support (9) is arranged on the upper end face of the connecting support (8), the motor (10) is fixedly connected with the inner wall of the mounting support (9), the connecting gear (11) is arranged at the tail end of the motor (10), the gear rod (12) is connected with the inner meshing of the connecting gear (11), the connecting hole (13) is arranged at the lower end of the gear rod (12) and is arranged at the inner mounting of the mounting support (9), and the limiting rod (14) is arranged at the upper end of the mounting support (9).

2. The butterfly valve with self-locking for nuclear power of claim 1, wherein: a sealing groove (15) is formed in the inner wall of the valve body (1), a valve core (16) is arranged at the lower end of the connecting shaft (6), and a rubber plug (17) is arranged at the edge of the valve core (16).

3. The butterfly valve with self-locking for nuclear power of claim 1, wherein: the four groups of positioning holes (7) are arranged, and the four groups of positioning holes (7) are distributed in a matrix along the upper end face of the valve seat (2).

4. The butterfly valve with self-locking for nuclear power of claim 1, wherein: the gear rod (12) forms a sliding structure with the connecting hole (13) through the motor (10) and the connecting gear (11), and the upper end of the gear rod (12) is in fit connection with the limiting rod (14).

5. The butterfly valve with self-locking for nuclear power of claim 2, wherein: the valve core (16) is fixedly connected with the connecting shaft (6), and the valve core (16) and the valve seat (2) form a clamping structure through the rubber bolt (17) and the sealing groove (15).