CN220037555U - Overload protection device for flow of heating fluid pipeline - Google Patents

Abstract

The utility model discloses a heating fluid pipeline flow overload protection device which comprises a pipe body and a valve core, wherein the left side of the pipe body is provided with mounting threads and a mounting port, the right side of the mounting port is provided with a valve port, the right side of the valve port is provided with a buffer cavity, a liquid discharge pipe is arranged below the buffer cavity, the valve core is arranged in the pipe body, the left end of the valve core is provided with a rubber water-resisting layer, the left side of the rubber water-resisting layer is provided with a valve clamping block, the lower end of the valve core is provided with a sliding block, the right end of the valve core is provided with a rotating groove, the rotating groove is internally provided with a rotating block, the right end of the rotating block is fixedly connected with the left end of a spring, the right end of the spring is fixedly connected with the left end of a pressure regulator, the right end of the pressure regulator is fixedly connected with a rotating handle, and a bearing is arranged between the connecting rod and the pipe body. The utility model is provided with the pressure regulator, the liquid discharge pipe and the buffer cavity, can not be used for dismounting, adjusting and setting the protection pressure, is very convenient and fast, and can also quickly reduce the hydraulic pressure in the pipeline when triggering protection.

Description

Overload protection device for flow of heating fluid pipeline

Technical Field

The utility model relates to the technical field of overload protection, in particular to a heating fluid pipeline flow overload protection device.

Background

The heating fluid pipeline is generally used for transporting the fluid that has certain temperature, and its during operation pipeline inside temperature is higher, and consequently pipeline inside atmospheric pressure or hydraulic pressure can all be in higher state, thereby in order to prevent that the pipeline from appearing the overload condition of flow damage leakage, generally can be equipped with flow overload protection device for the liquid pipeline, but current flow overload protection device still has certain problem when using:

for example, application number CN202022505587.5 discloses a flow overload protection device, which comprises a body mechanism, the body mechanism comprises a pipe body, the inner wall of one side of the pipe body is fixedly connected with the outer wall of a first fixed ring, the inner wall of the first fixed ring is fixedly connected with the outer wall of one end of a T-type overload limiting pipe, and the inner wall of the other side of the pipe body is fixedly connected with the outer wall of a second fixed ring, the beneficial effects achieved by the utility model are that: according to the utility model, through the insertion of the T-shaped overload limiting pipe in the body mechanism and the overload protection mechanism and the T-shaped protection inner barrel, when the flow is overloaded, the fluid can be prevented from passing through, so that the flow can be protected, and through the use of the first torsion spring, the extension plate, the first buckle plate, the second torsion spring and the second buckle plate in the body mechanism and the overload protection mechanism, the problem that the T-shaped protection inner barrel is pulled out from the T-shaped overload limiting pipe by back suction after overload protection is avoided, so that overload protection is more stable. However, the device is not provided with a pressure regulating device, the numerical value of the pressure required by the reaction of the device cannot be changed after the device is installed, the device is inflexible to use, and the pressure in a pipeline cannot be rapidly reduced due to the fact that the device cannot be rapidly discharged when the hydraulic pressure is too high.

Aiming at the problems, the novel design is carried out on the basis of the original flow overload protection device.

Disclosure of Invention

The utility model aims to provide a heating fluid pipeline flow overload protection device, which aims to solve the problems that the use is inflexible and the pipeline cannot be depressurized rapidly in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a heating fluid pipeline flow overload protection device, includes body and case, the body left side is equipped with mounting thread and installing port, just the installing port right side is equipped with the valve port, the valve port right side is equipped with the cushion chamber, the cushion chamber below is equipped with the fluid-discharge tube, the fluid-discharge tube right side is equipped with the spout, the spout right side is equipped with limit structure and concave screw thread, the inside body is located to the case, just the left end of case is equipped with the rubber water barrier, just the rubber water barrier left side is equipped with the valve fixture block, the lower extreme of case is equipped with the slider, just the right-hand member of case is equipped with the rotation groove, the inside turning block that is equipped with of rotation groove, just turning block right-hand member and the left end fixed connection of spring, the right-hand member and the left end fixed connection of connecting rod of pressure regulator, just the right-hand member and the rotatory handle fixed connection of connecting rod, just be equipped with the bearing between connecting rod and the body.

Preferably, the valve clamping block is fixedly connected with the rubber water-resisting layer, and the combination structure of the valve clamping block and the rubber water-resisting layer can be mutually attached to the valve port.

By adopting the technical scheme, when the pressure in the pipeline is smaller than the pressure between the spring and the valve core, the rubber water-resisting layer can be tightly attached to the valve, the tightness of the device when not triggered is ensured, and the valve clamping block is fixedly connected with the rubber water-resisting layer, so that the valve clamping block can be clamped into the mounting port to prevent the valve core from shaking.

Preferably, the sliding block is fixedly connected with the lower surface of the valve core, a sliding structure is formed between the sliding block and the sliding groove, and a limiting structure is arranged on the right side of the sliding groove.

By adopting the technical scheme, when overload protection is triggered, the valve core can linearly move rightwards by taking the sliding groove as a moving track, and stops when reaching the limit structure at maximum, and the limit structure can protect the spring from damage to the protection device due to excessive deformation caused by overlarge hydraulic pressure in the pipeline.

Preferably, the outer side of the pressure regulator is provided with a male thread, and the pressure regulator and the female thread form a thread structure.

By adopting the technical scheme, the tightness of the right side of the protection device is ensured, the pressure regulator can horizontally move in the pipeline in a spiral mode, and the pressure between the spring and the valve core can be regulated without disassembling the device, so that the protection device is more flexible to use.

Preferably, the left side of the spring is fixedly connected with the rotating block, and the rotating block and the rotating groove form a rotating structure.

By adopting the technical scheme, when the pressure regulator is regulated through the thread structure, the rotating block can be driven to rotate in the rotating groove, the spring is prevented from being damaged when the pressure regulator is regulated, and the rotation of the spring is kept, so that the pressure regulator can be more conveniently used for regulating the pressure between the spring and the valve core.

Preferably, the left side face of the pressure regulator is fixedly connected with the spring, the right side face of the pressure regulator is fixedly connected with the left end of the connecting rod, and the right end of the connecting rod is fixedly connected with the rotary handle.

By adopting the technical scheme, the pressure regulator and the rotary handle form a linkage structure through the connecting rod, so that a user can adjust the pressure regulator by rotating the rotary handle.

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

1. the utility model is provided with the pressure regulator, the pressure regulator is fixedly connected with the rotary handle through the connecting rod, the spring fixedly connected with the left side of the pressure regulator is fixedly connected with the valve core, the left-right translation of the pressure regulator in the pipe body can be controlled through the rotary pressure regulator, so that the force of the spring on the valve core is regulated, the set pressure of the overload protection can be regulated without disassembly and replacement, and the device is very convenient;

2. the utility model is provided with the liquid discharge pipe and the buffer cavity, when the pressure in the pipeline is overlarge, the valve core can be pushed to be opened, so that liquid in the pipeline flows into the device, the buffer cavity can effectively relieve the impact pressure on the protection device when the liquid is flushed, then the entered liquid is rapidly discharged through the liquid discharge pipe, the effect of rapidly reducing the pressure in the pipeline is achieved, and when the pressure in the pipeline is recovered, the valve core of the protection device can be reset, so that the liquid in the pipeline is prevented from leaking from the protection device.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 2 is a left-hand structural schematic diagram of the present utility model;

FIG. 3 is a schematic left-view of the valve element of the present utility model;

FIG. 4 is a schematic top view of the present utility model;

fig. 5 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

In the figure: 1. a tube body; 2. installing a thread; 3. a mounting port; 4. a valve port; 5. a buffer chamber; 6. a liquid discharge pipe; 7. a chute; 8. a limit structure; 9. a female thread; 10. a clamping block; 11. a rubber water-blocking layer; 12. a valve core; 13. a slide block; 14. a spring; 15. a pressure regulator; 16. a connecting rod; 17. rotating the handle; 18. a bearing; 19. a rotating groove; 20. and rotating the block.

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.

According to the utility model, as shown in fig. 1, 4 and 5, a technical scheme is provided: the utility model provides a heating fluid pipeline flow overload protection device, including body 1 and case 12, body 1 left side is equipped with mounting thread 2 and installing port 3, and the installing port 3 right side is equipped with valve port 4, valve port 4 right side is equipped with cushion chamber 5, cushion chamber 5 below is equipped with fluid-discharge tube 6, fluid-discharge tube 6 right side is equipped with spout 7, spout 7 right side is equipped with limit structure 8 and concave thread 9, case 12 locates inside body 1, and the left end of case 12 is equipped with rubber water barrier 11, and rubber water barrier 11 left side is equipped with valve fixture block 10, the lower extreme of case 12 is equipped with slider 13, and the right-hand member of case 12 is equipped with rotary groove 19, the inside turning block 20 that is equipped with of rotary groove 19, and turning block 20 right-hand member and spring 14's left end fixed connection, spring 14's right-hand member and pressure regulator 15's left end fixed connection, pressure regulator 15's right-hand member and connecting rod 16's left end fixed connection, and connecting rod 16's right-hand member and rotary handle 17 fixed connection, and be equipped with bearing 18 between connecting rod 16 and the body 1.

According to the illustration in fig. 1, the valve clamping block 10 is fixedly connected with the rubber water-proof layer 11, and the combination structure of the valve clamping block 10 and the rubber water-proof layer 11 can be mutually attached to the valve port 4.

According to fig. 1 and 3, the slider 13 is fixedly connected with the lower surface of the valve core 12, a sliding structure is formed between the slider 13 and the sliding groove 7, and a limit structure 8 is arranged on the right side of the sliding groove 7.

According to fig. 1 and 5, the outer side of the pressure regulator 15 is provided with a male screw thread, the pressure regulator 15 and the female screw thread 9 form a screw structure, the left side surface of the pressure regulator 15 is fixedly connected with the spring 14, the right side surface of the pressure regulator 15 is fixedly connected with the left end of the connecting rod 16, the right end of the connecting rod 16 is fixedly connected with the rotary handle 17, the left side of the spring 14 is fixedly connected with the rotary block 20, and the rotary block 20 and the rotary groove 19 form a rotary structure.

Working principle: when the device is used, the device is mounted on the side surface of a required pipeline through the mounting screw thread 2, then the pressure regulator 15 in the pipe body 1 is controlled through rotating the rotary handle 17, so that the compression degree of the spring 14 arranged between the pressure regulator 15 and the valve core 12 is controlled, the pressure between the valve core 12 and the valve port 4 is regulated, after the pressure is regulated to the set protection pressure, when the protection device is triggered by the hydraulic pressure in the pipeline, the valve core 12 can be pushed to move linearly along the chute 7, the valve port 4 is opened, at the moment, the hydraulic pressure in the pipeline rapidly flows into the buffer cavity 5, then flows out of the liquid discharge pipe 6, the effect of rapidly reducing the hydraulic pressure in the pipeline is achieved, and after the hydraulic pressure in the pipeline returns to a normal level, the spring 14 pushes the valve core 12 to restore the original position, so that the protection device is in a closed state, and the protection device is prevented from leaking the hydraulic pressure in the pipeline.

What is not described in detail in this specification is prior art known to those skilled in the art.

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 (6)

1. The utility model provides a heating fluid pipeline flow overload protection device, includes body (1) and case (12), its characterized in that: the utility model discloses a rotary pressure regulator, including body (1), valve core (12), valve core (10) and valve core (12), valve core (12) lower extreme is equipped with slider (13), valve core (12) right-hand member is equipped with rotary groove (19), rotary block (20) are equipped with in rotary groove (19), and rotary block (20) right-hand member and spring (14)'s left end fixed connection, spring (14) right-hand member and pressure regulator's left end fixed connection, pressure regulator's right-hand member (16) and connecting rod's right-hand member fixed connection, pressure regulator's right-hand member (15) are fixed connection, pressure regulator's right-hand member and connecting rod's (16) are fixed connection, and a bearing (18) is arranged between the connecting rod (16) and the pipe body (1).

2. A heating fluid conduit flow overload protection device in accordance with claim 1 wherein: the valve clamping block (10) is fixedly connected with the rubber water-resisting layer (11), and the combination structure of the valve clamping block (10) and the rubber water-resisting layer (11) can be mutually attached to the valve port (4).

3. A heating fluid conduit flow overload protection device in accordance with claim 1 wherein: the sliding block (13) is fixedly connected with the lower surface of the valve core (12), a sliding structure is formed between the sliding block (13) and the sliding groove (7), and a limiting structure (8) is arranged on the right side of the sliding groove (7).

4. A heating fluid conduit flow overload protection device in accordance with claim 1 wherein: the outside of the pressure regulator (15) is provided with a male thread, and the pressure regulator (15) and the female thread (9) form a thread structure.

5. A heating fluid conduit flow overload protection device in accordance with claim 1 wherein: the left side of the spring (14) is fixedly connected with the rotating block (20), and the rotating block (20) and the rotating groove (19) form a rotating structure.

6. A heating fluid conduit flow overload protection device in accordance with claim 1 wherein: the left side face of the pressure regulator (15) is fixedly connected with the spring (14), the right side face of the pressure regulator (15) is fixedly connected with the left end of the connecting rod (16), and the right end of the connecting rod (16) is fixedly connected with the rotary handle (17).