CN218719240U

CN218719240U - Double-limit structure of valve positioner switch

Info

Publication number: CN218719240U
Application number: CN202222712072.1U
Authority: CN
Inventors: 齐美彬; 徐卫东; 朱仁伦; 徐志龙; 钱志航
Original assignee: Suzhou Yuchuang Intelligent Instrument Technology Co ltd
Current assignee: Suzhou Yuchuang Intelligent Instrument Technology Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-03-24
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses a double-limit structure of a valve positioner switch, which comprises an outer frame and a limit rod, wherein an air pump is arranged at one end of the top surface of the outer frame, an air bag is arranged on the surface of a vertical plate, the output end of a motor is connected with a rotating disk through key joint, the other end of a sliding rod is connected with an inclined strut, one end of the inclined strut is connected with a sliding block, one side of a clamping plate is adhered with clamping pads, and a valve positioner is arranged between the clamping pads; this two limit structure of valve locator switch is provided with the sliding construction that slider and horizontal pole constitute and makes the clamping bar of slider upper surface carry out the centre gripping spacing to the both sides of valve locator under the transmission effect of motor, avoids the valve locator to take place the removal about, and the gag lever post of the gasbag upper surface that this limit structure set up simultaneously can carry out limiting displacement to the other both sides of valve locator under the gas charging action of air pump to embodied this two limit structure of valve locator spacing, increased the stability of valve locator.

Description

Double-limit structure of valve positioner switch

Technical Field

The utility model relates to a limit structure technical field specifically is two limit structure of valve positioner switch.

Background

The double-limit structure of the valve positioner switch is a device for limiting the valve positioner, the double-limit structure can make the valve positioner stably installed at a required position, the stability of the valve positioner in operation is improved, the valve positioner is commonly used in the fields of chemical industry, smelting and the like, and is the core equipment of an automatic control valve, so the installation stability of the valve positioner is very important, and some problems are found in the use process of the limit structure of the existing valve positioner:

1. the switch limiting structure of the existing valve positioner only has a one-way limiting function, and does not have a two-way limiting function, so that the stability of the valve positioner is reduced, and the stability of the limiting structure of the existing valve positioner has an improved space;

the existing valve positioner switch limiting structure generally adopts a bolt to limit the valve positioner, is not convenient to adjust and maintain due to replacement of the valve positioner, and reduces the daily maintenance efficiency of the valve positioner.

We have therefore proposed a valve positioner switch double limit arrangement to address the problems set out above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two limit structure of valve locator switch to solve the problem that the current valve locator limit structure only has one-way limit function and current valve locator limit structure and be not convenient for adjust and the change of valve locator is maintained on the existing market that the above-mentioned background art provided.

In order to achieve the above object, the utility model provides a following technical scheme: the valve positioner switch double-limiting structure comprises an outer frame and a limiting rod, wherein an air pump is arranged at one end of the top surface of the outer frame, a vertical plate is connected onto the top surface of the outer frame, a motor is arranged in the middle of the bottom of the inner side of the outer frame, a fixing rod is arranged in the middle of the outer frame, a support is arranged above the fixing rod on the inner side of the outer frame, and one end of the fixing rod is connected with a cylinder;

an air bag is arranged on the surface of the vertical plate, and one end of the air bag is connected with a limiting rod;

the motor output end is connected with the rotary disk through the key joint, the rotary disk installs the connecting strip on the surface, another tip of connecting strip is connected with the slide bar through activity hinge, another tip of slide bar is connected with the diagonal brace, a tip of diagonal brace is connected with the slider, slider side department is connected with the spring, and the department is equipped with the horizontal pole in the middle of the slider, and splint are installed through the bolt in slider top surface department simultaneously, splint side is stained with the clamp pad be equipped with the valve locator between the clamp pad.

Preferably, the connecting strip and the rotating disc form a rotary transmission structure, and the connecting strip is of a stainless steel structure.

The connecting strip and the rotating disc form a rotary transmission structure, so that the connecting strip can reciprocate under the driving of the rotation of the rotating disc.

Preferably, the inner diameter of the cylinder is 5mm longer than the outer diameter of the sliding rod, and the cylinder and the sliding rod form a sliding structure.

The inner diameter of the cylinder is 5mm longer than the outer diameter of the sliding rod, so that the tightness of the cylinder and the sliding rod is improved, and the gap between the cylinder and the sliding rod is reduced.

Preferably, the inclined supporting rods adopt two groups of high-strength alloy structures, and are connected with the sliding rods and the sliding blocks in a movable hinged mode.

The inclined strut is connected with the sliding rod and the sliding block in a movable hinged mode, so that the inclined strut can drive the sliding block to slide.

Preferably, the sliding block, the cross bar and the spring form an elastic sliding structure, and the spring is just sleeved on the surface of the cross bar.

The spring is just sleeved on the surface of the cross rod, so that the tightness between the spring and the cross rod is improved, and the elastic effect of the spring on the sliding block is enhanced.

Preferably, the clamping pad is corrugated, and the clamping pad is of an elastic rubber structure.

The clamping pad is corrugated, so that the skid resistance of the clamping pad is improved.

Preferably, one end part of the limiting rod is semicircular, and the semicircular end part of the limiting rod is of an elastic rubber structure.

One end of the limiting rod is in a semicircular shape, so that the appearance of the limiting structure is improved.

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

1. the valve positioner switch double-limit structure is provided with a sliding structure consisting of a sliding block and a cross rod, so that a clamping rod on the upper surface of the sliding block can clamp and limit two sides of a valve positioner under the transmission action of a motor, the valve positioner is prevented from moving left and right, and meanwhile, a limit rod on the upper surface of an air bag arranged by the limit structure can limit the other two sides of the valve positioner under the inflation action of an air pump, so that the limit double-limit structure of the valve positioner is embodied, and the stability of the valve positioner is improved;

2. the clamping rod and the limiting rod which are arranged on the double-limiting structure of the valve positioner switch are used for fixing the valve positioner, bolts are not used for fixing, the valve positioner is only required to be replaced and maintained through the control of the motor and the air pump during daily replacement and maintenance, and the replacement and maintenance efficiency of people on the valve positioner is improved.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a schematic cross-sectional view of the cylinder of the present invention;

FIG. 3 is a schematic view of the structure of the present invention;

fig. 4 is a schematic view of the structure of the slider.

In the figure: 1. an outer frame; 2. a motor; 3. rotating the disc; 4. a connecting strip; 5. a slide bar; 6. a cylinder; 7. fixing the rod; 8. a diagonal brace; 9. a cross bar; 10. a spring; 11. a slider; 12. a support; 13. a splint; 14. a clamping pad; 15. a valve positioner; 16. an air pump; 17. a vertical plate; 18. an air bag; 19. a limiting rod.

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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the valve positioner switch double-limit structure comprises an outer frame 1, a motor 2, a rotating disk 3, a connecting strip 4, a sliding rod 5, a cylinder 6, a fixed rod 7, an inclined stay bar 8, a cross bar 9, a spring 10, a sliding block 11, a support 12, a clamping plate 13, a clamping pad 14, a valve positioner 15, an air pump 16, a vertical plate 17, an air bag 18 and a limit rod 19, wherein the air pump 16 is installed at one end of the top surface of the outer frame 1, the vertical plate 17 is connected to the top surface of the outer frame 1, the motor 2 is installed in the middle of the bottom of the inner side of the outer frame 1, the fixed rod 7 is installed in the middle of the outer frame 1, the support 12 is installed above the fixed rod 7 on the inner side of the outer frame 1, one end of the fixed rod 7 is connected with the cylinder 6, the diameter of the cylinder 6 is 5mm longer than the outer diameter of the sliding rod 5, the cylinder 6 and the sliding rod 5 form a sliding structure, and the sliding structure formed by the cylinder 6 and the sliding rod 5 enables the sliding rod 5 to slide in the cylinder 6;

the surface of the vertical plate 17 is provided with an air bag 18, one end part of the air bag 18 is connected with a limiting rod 19, one end part of the limiting rod 19 is semicircular, the semicircular end part of the limiting rod 19 is of an elastic rubber structure, and the semicircular end part of the limiting rod 19 is of an elastic rubber structure, so that the protection effect of the limiting structure on the valve positioner 15 is embodied;

the output end of the motor 2 is connected with a rotating disk 3 through a key joint, a connecting strip 4 is installed on the surface of the rotating disk 3, the other end of the connecting strip 4 is connected with a sliding rod 5 through a movable hinge joint, the connecting strip 4 and the rotating disk 3 form a rotary transmission structure, the connecting strip 4 is of a stainless steel structure, the stainless steel structure adopted by the connecting strip 4 improves the bending strength of the connecting strip 4 and prolongs the service life of the connecting strip 4, the other end of the sliding rod 5 is connected with an inclined strut 8, one end of the inclined strut 8 is connected with a sliding block 11, the inclined strut 8 adopts two sets of high-strength alloy structures, the inclined strut 8 is connected with a sliding block 10 through a bolt, the middle of the sliding block 11 is provided with a cross rod 9, the sliding block 11, the top surface of the sliding block 11 is provided with a clamping pad 14 through a bolt, the sliding block 11, the cross rod 9 and the spring 10 form an elastic sliding structure, the spring 10 is just sleeved on the surface of the cross rod 9, one side surface of the clamping pad 14, the door gasket 14 adopts a corrugated rubber structure to protect a door gasket 15, and a door.

The working principle is as follows: when the valve positioner switch double-limit structure is used, firstly, the valve positioner switch double-limit structure is welded to a position where a valve positioner 15 needs to be installed, then the motor 2 is started, the motor 2 drives the rotating disk 3 to rotate, the connecting strip 4 on the surface of the rotating disk 3 performs circular reciprocating motion when the rotating disk 3 rotates, so that the sliding rod 5 is driven to perform vertical reciprocating motion, the sliding rod 5 pulls the inclined strut 8, the inclined strut 8 generates horizontal tension on the sliding block 11, so that the sliding block 11 performs horizontal reciprocating motion, and finally the clamping plate 13 performs horizontal movement;

start air pump 16, air pump 16 passes through during pipeline transport is gaseous to gasbag 18, and gasbag 18 is aerifyd and is bloated for gag lever post 19 carries out the centre gripping to valve positioner 15 spacing, just accomplishes this limit structure's two-way limit function this moment, when valve positioner 15 is maintained in needs change, loosens valve positioner 15 through control motor 2 and air pump 16 and can change.

Those not described in detail in this specification are within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. Two limit structure of valve locator switch, including frame (1) and gag lever post (19), its characterized in that: an air pump (16) is installed at one end of the top surface of the outer frame (1), a vertical plate (17) is connected to the top surface of the outer frame (1), a motor (2) is installed in the middle of the bottom of the inner side of the outer frame (1), a fixing rod (7) is installed in the middle of the outer frame (1), a support (12) is installed on the position, above the fixing rod (7), of the inner side of the outer frame (1), and one end of the fixing rod (7) is connected with a cylinder (6);

an air bag (18) is arranged on the surface of the vertical plate (17), and one end of the air bag (18) is connected with a limiting rod (19);

the motor (2) output is connected with rotary disk (3) through the key joint, rotary disk (3) install connecting strip (4) on the surface, another tip of connecting strip (4) is connected with slide bar (5) through the activity is articulated, another tip of slide bar (5) is connected with diagonal brace (8), a tip of diagonal brace (8) is connected with slider (11), slider (11) one side department is connected with spring (10), and the department is equipped with horizontal pole (9) in the middle of slider (11), and splint (13) are installed through the bolt in slider (11) top surface department simultaneously, splint (13) one side is stained with clamp pad (14) be equipped with valve locator (15) between clamp pad (14).

2. The valve positioner switch double-limit structure of claim 1, wherein: the connecting strips (4) and the rotating disc (3) form a rotating transmission structure, and the connecting strips (4) are of a stainless steel structure.

3. The valve positioner switch double-limit structure of claim 1, wherein: the inner diameter of the cylinder (6) is 5mm longer than the outer diameter of the sliding rod (5), and the cylinder (6) and the sliding rod (5) form a sliding structure.

4. The valve positioner switch double-limit structure of claim 1, wherein: the inclined supporting rods (8) are of two groups of high-strength alloy structures, and the inclined supporting rods (8) are connected with the sliding rods (5) and the sliding blocks (11) in a movable hinged mode.

5. The valve positioner switch double-limit structure of claim 1, wherein: the sliding block (11), the cross rod (9) and the spring (10) form an elastic sliding structure, and the spring (10) is just sleeved on the surface of the cross rod (9).

6. The valve positioner switch double-limit structure of claim 1, wherein: the clamping pad (14) is corrugated, and the clamping pad (14) is of an elastic rubber structure.

7. The valve positioner switch double-limit structure of claim 1, wherein: one end part of the limiting rod (19) is semicircular, and the semicircular end part of the limiting rod (19) is of an elastic rubber structure.