CN218440816U

CN218440816U - Valve switch locking mechanism

Info

Publication number: CN218440816U
Application number: CN202222625885.7U
Authority: CN
Inventors: 高栋; 刘洪刚
Original assignee: Shanghai Liqian Electronic Technology Co ltd
Current assignee: Shanghai Liqian Electronic Technology Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-02-03
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a valve switch locking mechanism, include: the switch sleeve is welded on the outer surface of the valve body, the switch sleeve is communicated with the valve body, and the valve control rod is connected in the switch sleeve in a nested manner; further comprising: the limiting device is fixedly connected to the rear end face of the switch sleeve, a limiting groove is hollowed at the upper end of the limiting device, and a locking device is arranged in the limiting device in a nested mode; the middle shaft column is arranged at the circle center of the locker, the locker is of a notch-shaped circular ring structure, a sliding block is fixedly arranged at the right end of the locker, and the sliding block is connected with the limiting groove in a sliding mode. This valve switch locking mechanical system can open or closed back at the valve of check valve, locks the valve clack in the valve automatically to it is smooth to intake when keeping the valve body to open, and promotes the leakproofness of valve body after closing the valve.

Description

Valve switch locking mechanism

Technical Field

The utility model relates to a valve switch technical field specifically is a valve switch locking mechanism.

Background

The valve is a pipeline accessory used for opening and closing a pipeline, controlling flow direction, adjusting and controlling parameters of a conveying medium, and the commonly used valve mainly relates to a break valve, a check valve, a regulating valve and the like, wherein the check valve is a device for controlling the opening and closing of the valve by using the pressure of the flowing medium, when the water inlet pressure is greater than the sum of the weight of a valve clack and the flowing resistance of the valve clack, the valve is opened, otherwise, the valve is closed when the medium flows backwards, but the existing check valve has the defects of large resistance and poor sealing performance when the check valve is closed.

The oblique flap check valve with the valve flap closing prevention device disclosed by the Chinese patent CN207454843U comprises a cylindrical valve body, a valve cover, a valve seat and an oblique valve flap, wherein a fluid inlet and a fluid outlet are respectively formed in two ends of the cylindrical valve body, a middle opening is formed in the top of the cylindrical valve body, the valve cover is arranged on the middle opening, the valve seat is arranged on the fluid inlet side of the valve body and forms an angle of 45 degrees with the center line of the valve body, the oblique valve flap is connected with the valve seat in an opening and closing mode, the oblique valve flap is an integral piece of vulcanized rubber with a framework, and the integral piece of the vulcanized rubber is formed by a valve flap main body, a soft arm and a shaft hub which are sequentially connected with the valve flap main body, and the shaft hub of the oblique valve flap is embedded in a groove at the joint of the valve cover on the fluid inlet side and the valve body; the valve clack closing prevention device is characterized in that a valve clack closing prevention device is additionally arranged at the bottom of a valve body and consists of a push rod with a handle, a push rod guide sleeve for guiding the push rod to enter the valve body in a sleeving mode and a locking nut for locking the push rod, the inclined valve clack is in an opening state under the pushing support of the push rod, although the closing of the valve clack is blocked by the externally-arranged push rod, the externally-arranged sleeved push rod occupies a large space on the valve body, and the push rod is prone to corrosion and damage due to long-term contact with flowing media.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve switch locking mechanical system to provide the valve switch locking mechanical system who has used in the prior art among the solution above-mentioned background, the structure volume is great, is difficult for matcing and installs in the valve of check valve, and the valve clack of current check valve can't keep the problem of long-term stable opening and closed state.

In order to achieve the above object, the utility model provides a following technical scheme: a valve switch lockout mechanism comprising:

the switch sleeve is welded on the outer surface of the valve body, the switch sleeve is communicated with the valve body, and the valve control rod is connected in the switch sleeve in a nested manner;

further comprising:

the limiting device is fixedly connected to the rear end face of the switch sleeve, a limiting groove is hollowed at the upper end of the limiting device, and a locking device is nested in the limiting device;

the middle shaft column is arranged at the circle center of the locker, the locker is of a notch-shaped circular ring structure, a sliding block is fixedly arranged at the right end of the locker, and the sliding block is connected with the limiting groove in a sliding mode.

The setting of above-mentioned structure makes the valve of check valve open with when closing, can keep the locking of the valve clack opening angle of valve through the cooperation of stopper and locking period to and sealed compactness when keeping the valve clack closure, thereby promote the smooth nature of check valve intaking and reduce the resistance, can also promote the leakproofness when closed valve.

Preferably, the inside water inlet end department of valve body still fixedly is provided with the leak protection packing ring, and the leak protection packing ring is located the valve control lever under to valve control lever's middle section department still fixedly connected with connecting rod, when the setting up of above-mentioned structure made the valve be in the closure state, can firmly keep the closed compactness of valve clack, can promote the leakproofness between valve clack and the leak protection packing ring, thereby effectively prevent the medium backward flow.

Preferably, the bottom department of connecting rod still fixedly is provided with the valve clack, and the diameter of valve clack is greater than the inner circle diameter of leak protection packing ring to the valve clack passes through valve control pole and connecting rod and constitutes revolution mechanic with the valve body, and the front end department of valve control pole still fixedly connected with handle simultaneously, and the setting up of above-mentioned structure makes the valve clack can avoid appearing the crack when closed, and the valve clack can be opened manually through handle structure and close.

Preferably, the handle is connected with the valve control rod in a mutually perpendicular mode, a clamping block is further arranged between the tail end of the handle and the valve body, the handle is connected with the valve body in a clamping mode through the clamping block, and when the valve clack is closed through the arrangement of the structure, the closing tightness and stability of the valve clack are kept in a mode that the clamping block limits the handle in the clamping block.

Preferably, the locking device is fixedly connected with the middle shaft column, the middle shaft column is fixedly connected with the rear end of the valve control rod, the locking device, the middle shaft column and the valve control rod form an integrated structure together, and meanwhile, a ratchet wheel is further nested on the middle shaft column, so that the rotation of the locking device is consistent with the rotation of the valve clack and the valve control rod, and the locking of the opening angle of the valve clack can be accurately controlled.

Preferably, a pawl is further arranged under the ratchet wheel in a meshed mode, a fixed-point rotating structure is formed by the pawl and the inner surface of the limiting stopper, a spring part is further fixedly connected to the right side of the pawl, and the pawl can be used for limiting the rotation of the ratchet wheel after the ratchet wheel rotates by the same angle along with the locking device after stopping, so that the valve clack is kept locked when being opened or closed.

Preferably, both ends respectively with pawl and stopper fixed connection around the spring part, and the pawl passes through the spring part and the ratchet constitutes elastic construction, and the setting up of above-mentioned structure makes the ratchet when rotating, can be through constantly stirring the pawl to utilize the spring part control pawl mode of rocking to reciprocate, make the pawl accuracy card go into in the ratchet, thereby the accuracy of high-efficient promotion ratchet locking.

Compared with the prior art, the beneficial effects of the utility model are that: this valve switch locking mechanical system can open or the closure back at the valve of check valve, locks the valve clack in the valve automatically to it is smooth to intake when keeping the valve body to open, and promotes the leakproofness of valve body after closing the valve, and its concrete content is as follows:

1. according to the valve switch locking mechanism, the valve body is provided with a valve control rod, a connecting rod, a valve clack, a handle and a buckle block, the handle is manually rotated, so that the valve control rod and the connecting rod drive the valve clack to be opened and closed together, when the valve clack is closed, the handle is blocked by the limitation of the buckle block, the valve clack is closed more tightly and stably, and the aim of conveniently improving the sealing performance of the valve when the valve is closed by the locking mechanism is fulfilled;

2. this valve switch locking mechanical system, be provided with the stopper on the valve control lever, the spacing groove, the locker, well jack-post, the slider, the ratchet, the structure of pawl and spring part, it is rotatory to drive the locker together when rotating through the valve control lever, and make the slider on the locker slide along the spacing groove on the stopper, and well jack-post ratchet is then constantly stirred the pawl when rotating, and the pawl can only rotate towards a direction through the spring part, and can not revolve round, and then control the ratchet and restrict the locker, realize that locking mechanical system can lock the angle after the valve clack opens, make the valve clack remain the open mode all the time, promote the function of valve water inlet smoothness nature.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram of a semi-sectional three-dimensional structure of the valve body of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the valve control rod of the present invention;

FIG. 4 is a schematic view of a three-dimensional structure of the connection position of the stopper and the locking device of the present invention;

fig. 5 is a schematic diagram of the explosion three-dimensional structure of the stopper of the present invention.

In the figure: 1. a valve body; 2. a leak-proof gasket; 3. a switch sleeve; 4. a valve control lever; 5. a connecting rod; 6. a valve flap; 7. a handle; 8. a buckling block; 9. a stopper; 10. a limiting groove; 11. a lock; 12. a central shaft column; 13. a slider; 14. a ratchet wheel; 15. a pawl; 16. a spring member.

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.

Referring to fig. 1-5, the present invention provides a technical solution: a valve switch locking mechanism comprising: the switch sleeve 3 is welded on the outer surface of the valve body 1, the switch sleeve 3 is communicated with the valve body 1, the valve control rod 4 is connected in the switch sleeve 3 in a nested manner, the limiter 9 is fixedly connected on the rear end surface of the switch sleeve 3, the upper end of the limiter 9 is provided with a limiting groove 10 in a hollowed manner, the limiter 9 is internally provided with a locker 11 in a nested manner, the middle shaft column 12 is arranged at the center of the locker 11, the locker 11 is of a notch-shaped circular structure, the right end of the locker 11 is fixedly provided with a sliding block 13, and the sliding block 13 is connected with the limiting groove 10 in a sliding manner;

when the locking mechanism is used, if the valve of the check valve needs to be opened, the valve control rod 4 in the switch sleeve 3 is rotated clockwise, and in order to keep the valve in an open state all the time, the valve control rod 4 drives the locking device 11 to rotate together when rotating, and the sliding block 13 on the locking device 11 slides along the limiting groove 10 of the limiting device 9, so that the stability of the valve control rod 4 when rotating is kept.

When the valve is in a closed state, the valve flap 6 is tightly attached to the leakage-proof gasket 2 to block medium backflow, specifically, as shown in fig. 1, 2 and 3, the leakage-proof gasket 2 is fixedly arranged at a water inlet end inside the valve body 1, the leakage-proof gasket 2 is positioned right below the valve control rod 4, the connecting rod 5 is fixedly connected to a middle section of the valve control rod 4, the valve flap 6 is fixedly arranged at a bottom end of the connecting rod 5, the diameter of the valve flap 6 is larger than that of an inner ring of the leakage-proof gasket 2, the valve flap 6 forms a rotating structure with the valve body 1 through the valve control rod 4 and the connecting rod 5, the handle 7 is fixedly connected to a front end of the valve control rod 4, the handle 7 is vertically connected with the valve control rod 4, a clamping block 8 is arranged between a tail end of the handle 7 and the valve body 1, the handle 7 is clamped and connected with the valve body 1 through the clamping block 8, the manual control handle 7 rotates counterclockwise, the handle 7 is clamped and fixed in the clamping block 8, the valve flap 6 is tightly attached to the valve flap 6, and the diameter of the leakage-proof gasket 6 is larger than that the leakage-proof gasket 6 can block the leakage-proof gasket 6 tightly, and the leakage-proof gasket 6;

when the check valve is opened and the valve is kept in a long-time opening state, specifically, according to fig. 2, 4 and 5, the locker 11 is fixedly connected with the central shaft column 12, the central shaft column 12 is fixedly connected with the rear end of the valve control rod 4, the locker 11, the central shaft column 12 and the valve control rod 4 together form an integrated structure, meanwhile, a ratchet 14 is further nested on the central shaft column 12, a pawl 15 is further arranged right below the ratchet 14 in a meshed manner, the pawl 15 and the inner surface of the stopper 9 form a fixed-point rotating structure, a spring member 16 is further fixedly connected on the right side of the pawl 15, the front end and the rear end of the spring member 16 are respectively fixedly connected with the pawl 15 and the stopper 9, the pawl 15 and the ratchet 14 form an elastic structure through the spring member 16, when the opening angle of the valve clack 6 needs to be kept in a locking state, a bolt in front of the central shaft column 12 needs to be inserted and screwed in a thread groove of the ratchet 14 in advance, the ratchet 14 at the moment, the ratchet 14 and the ratchet 6 and the ratchet 11 and the ratchet 6 and the valve clack 6 can be closed through the ratchet 14, and the ratchet 14 can be locked and the valve can be closed repeatedly closed through the ratchet 14, and the ratchet 6, and the ratchet 14 can be locked valve can be closed again, and the valve can be closed through the ratchet 6.

The working principle is as follows: when the locking mechanism is used, according to the illustration in fig. 1-5, firstly, when the valve is opened, the valve control rod 4 drives the valve clack 6 to rotate for a certain angle, and the ratchet 14 on the locking device 11 is limited on the pawl 15, so that the opening angle of the valve clack 6 is locked, and when the valve is closed, the valve clack 6 and the handle 7 rotate reversely together, and the handle 7 is clamped and limited in the clamping block 8, which is the working principle of the locking mechanism of the valve switch.

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

Claims

1. The utility model provides a valve switch locking mechanical system, switch locking mechanical system by valve body (1), switch sleeve pipe (3) and valve control pole (4) with constitute, its characterized in that includes: the switch sleeve (3) is welded on the outer surface of the valve body (1), the switch sleeve (3) is communicated with the valve body (1), and the valve control rod (4) is connected in the switch sleeve (3) in a nested manner;

further comprising:

the limiting device (9) is fixedly connected to the rear end face of the switch sleeve (3), a limiting groove (10) is formed in the upper end of the limiting device (9) in a hollowed-out mode, and a locking device (11) is arranged in the limiting device (9) in a nested mode;

the middle shaft column (12) is arranged at the circle center of the locker (11), the locker (11) is of a notched circular ring structure, a sliding block (13) is fixedly arranged at the right end of the locker (11), and meanwhile the sliding block (13) is in sliding connection with the limiting groove (10).

2. A valve switch locking mechanism as defined in claim 1, wherein: the inside water inlet end department of valve body (1) still fixedly is provided with leak protection packing ring (2), and leak protection packing ring (2) are located valve control pole (4) under to valve control pole (4) middle section department still fixedly connected with connecting rod (5).

3. A valve switch locking mechanism as defined in claim 2, wherein: the bottom department of connecting rod (5) is still fixed and is provided with valve clack (6), and the diameter of valve clack (6) is greater than the inner circle diameter of leak protection packing ring (2) to rotating-structure is constituteed through valve control lever (4) and connecting rod (5) and valve body (1) in valve clack (6), and the front end department of valve control lever (4) still fixedly connected with handle (7) simultaneously.

4. A valve switch lockout mechanism in accordance with claim 3 wherein: handle (7) and valve control lever (4) mutually perpendicular are connected, and still are provided with buckle piece (8) between the end of handle (7) and valve body (1) to handle (7) are connected with valve body (1) block through buckle piece (8).

5. A valve switch lockout mechanism in accordance with claim 1 wherein: the locking device (11) is fixedly connected with the middle shaft column (12), the middle shaft column (12) is fixedly connected with the rear end of the valve control rod (4), the locking device (11), the middle shaft column (12) and the valve control rod (4) jointly form an integrated structure, and meanwhile, a ratchet wheel (14) is further nested on the middle shaft column (12).

6. A valve switch lockout mechanism in accordance with claim 5 wherein: a pawl (15) is further arranged under the ratchet wheel (14) in a meshed mode, a fixed-point rotating structure is formed by the pawl (15) and the inner surface of the limiting stopper (9), and a spring piece (16) is further fixedly connected to the right side of the pawl (15).

7. A valve switch locking mechanism as defined in claim 6, wherein: the front end and the rear end of the spring piece (16) are respectively fixedly connected with the pawl (15) and the limiter (9), and the pawl (15) and the ratchet wheel (14) form an elastic structure through the spring piece (16).