A low-temperature exhaust valve

Abstract

This utility model discloses a cryogenic exhaust valve, relating to the field of exhaust valve technology. During the connection of the exhaust valve to an external pipeline, the bolts are prone to slippage and misalignment during installation. This utility model includes a valve body and a fixing part. The outer walls of the pipelines at both ends of the valve body are threaded. The fixing part is located at both ends of the valve body and has mating rings connecting to the two ends of the valve body. Threaded rings are threaded to both ends of the valve body, and a transmission disc is rotatably connected to one side of the mating rings. This utility model, by providing mating protrusions, facilitates the connection of the external pipeline to the valve body. Rotating the threaded rings drives the transmission disc to move horizontally, which in turn drives a transmission rod to move horizontally. Under the action of a connecting rod, the horizontal movement of the transmission rod drives the fixing block to move vertically, compressing and fixing the external pipeline. The operation is simple and convenient for operators to connect the device to external pipelines.

Description

Technical Field

[0001] This utility model relates to the field of exhaust valve technology, specifically a low-temperature exhaust valve. Background Technology

[0002] Air vents are used for venting gas from pipes in independent heating systems, centralized heating systems, heating boilers, central air conditioning, floor heating, and solar heating systems. When the pressure inside the air vent connected to the pipe rises, and the gas pressure inside the valve is greater than the system pressure, the gas will cause the water level in the chamber to drop, and the float will drop along with the water level, opening the vent. After the gas is exhausted, the water level rises, and the float rises as well, closing the vent. Under normal circumstances, the valve cap should be in the open position.

[0003] Existing exhaust valves are usually connected to external pipes via multiple sets of bolts. During installation, the holes of the exhaust valve need to be manually aligned with the holes of the external pipe ports. During this alignment process, the exhaust valve needs to be manually supported before being secured with bolts. Bolts are prone to misalignment and stripping during installation. Utility Model Content

[0004] The purpose of this invention is to provide a low-temperature exhaust valve to solve the problem mentioned in the background art where bolts are prone to misalignment and stripping during installation when the exhaust valve is connected to an external pipeline.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature exhaust valve, comprising a valve body and a fixing part. The outer walls of the pipes at both ends of the valve body are threaded. The fixing part is disposed at both ends of the valve body and has a mating ring connected to both ends of the valve body. Threaded rings are threadedly connected to both ends of the valve body. A transmission disc is rotatably connected to one side of the threaded ring on the mating ring. A transmission rod is connected to one side of the transmission disc on the mating ring, and the transmission rod is slidably connected to the mating ring. A connecting rod is hinged to one end of the transmission rod inside the mating ring, and a fixing block is hinged to the other end of the connecting rod. Horizontal movement of the transmission rod causes the connecting rod to rotate, thereby driving the fixing block to move vertically.

[0006] By adopting the above technical solution and setting the docking protrusion, it is easy for the staff to connect the external pipe to the valve body. The rotation of the threaded ring drives the transmission disc to move horizontally, and the movement of the transmission disc drives the transmission rod to move horizontally. Under the action of the connecting rod, the horizontal movement of the transmission rod can drive the fixed block to move vertically to squeeze and fix the external pipe. The operation is simple and it is easy for the staff to connect the device to the external pipe.

[0007] Preferably, the fixing part further includes a sliding rod fixedly connected inside the docking ring, and the sliding rod is slidably connected to the transmission rod.

[0008] By adopting the above technical solution, the sliding rod can limit the transmission rod, preventing the sliding rod from deviating during horizontal movement.

[0009] Preferably, the other side of the docking ring connected to the valve body is provided with a docking protrusion, and the docking protrusion is cylindrical, and the cylinder has the same size as the hole in the external pipe.

[0010] By adopting the above technical solution, the external pipe is fixed by inserting the mating protrusion into the hole of the external pipe, which makes it easy for workers to quickly install the external pipe by rotating the threaded ring.

[0011] Preferably, the protrusion is internally connected to a limiting frame, and the limiting frame is slidably connected to the fixing block.

[0012] By adopting the above technical solution, the limiting frame can limit the fixed block, thereby improving the stability of the limiting frame during vertical movement.

[0013] Preferably, there are six sets of fixing blocks, and all six sets of fixing blocks on the docking ring side are beveled.

[0014] By adopting the above technical solution, the fixed block is designed with an inclined surface so that it can push the external pipe to fit against the docking ring during vertical movement, thereby improving the sealing performance after connection with the external pipe.

[0015] Preferably, the transmission rod is a cuboid, and the transmission rod is connected to the transmission disc by welding.

[0016] By adopting the above technical solution, the transmission rod can limit the transmission disc, preventing the threaded ring from rotating and causing the transmission disc to rotate.

[0017] Preferably, a protective ring is connected to the outer wall of the docking ring, and the protective ring is in contact with the transmission disk.

[0018] By adopting the above technical solution, the exposed part of the transmission rod can be protected by the protective ring, avoiding damage to the transmission rod caused by external collisions.

[0019] Preferably, a sealing ring is provided on the outer side of the docking ring, and the sealing ring is in contact with the external pipe.

[0020] By adopting the above technical solution, the sealing gasket will deform when connected to the external pipeline, thereby improving the sealing performance of the mating ring after it is connected to the external pipeline.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] With the addition of a docking protrusion, it is easy for operators to connect the external pipe to the valve body. Rotating the threaded ring drives the transmission disc to move horizontally, which in turn drives the transmission rod to move horizontally. Under the action of the connecting rod, the horizontal transmission rod can drive the fixing block to move vertically to squeeze and fix the external pipe. The operation is simple and makes it easy for operators to connect the device to the external pipe. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the top surface structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the fixed frame of this utility model;

[0026] Figure 4 This utility model Figure 3 Enlarged schematic diagram of part A.

[0027] In the diagram: 1. Air valve body; 2. Fixing part; 201. Connecting ring; 202. Threaded ring; 203. Transmission disc; 204. Transmission rod; 205. Connecting rod; 206. Fixing block; 207. Sliding rod; 208. Limiting frame; 209. Protective ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0030] Example 1

[0031] Please see Figure 1-4This embodiment provides a technical solution: a cryogenic exhaust valve, including a valve body 1 and a fixing part 2. The valve body 1 has threads on the outer walls of the pipes at both ends. The fixing part 2 is located at both ends of the valve body 1 and has mating rings 201 connected to both ends of the valve body 1. The mating rings 201 are connected to both ends of the valve body 1 by multiple sets of bolts, facilitating disassembly or installation by operators. Threaded rings 202 are threadedly connected to both ends of the valve body 1. Rotating the threaded rings 202 allows them to move horizontally outside the pipes of the valve body 1. A transmission disc 203 is rotatably connected to one side of the mating rings 201 on the threaded rings 202. The horizontal movement of the threaded rings 202 drives the transmission disc 203 to move. A transmission rod 204 is connected to one side of the docking ring 201. The transmission disk 203 is connected to the transmission rod 204 by welding to improve the stability of the overall structure. The transmission rod 204 is slidably connected to the docking ring 201. One end of the transmission rod 204 is located inside the docking ring 201. The transmission rod 204 is made of stainless steel to prevent rusting during long-term use. A connecting rod 205 is hinged to one end of the transmission rod 204 inside the docking ring 201. The horizontal movement of the transmission rod 204 can drive the connecting rod 205 to rotate. A fixed block 206 is hinged to the other end of the connecting rod 205. The rotation of the connecting rod 205 can drive the fixed block 206 to move vertically. The horizontal movement of the transmission rod 204 causes the connecting rod 205 to rotate, thereby driving the fixed block 206 to move vertically.

[0032] Example 2

[0033] Please see Figure 1-4 The fixing part 2 also has a sliding rod 207 fixedly connected inside the docking ring 201, and the sliding rod 207 is slidably connected to the transmission rod 204. The sliding rod 207 can limit the transmission rod 204 to prevent the sliding rod 207 from deviating during horizontal movement. The other side of the docking ring 201 connected to the valve body 1 is provided with a docking protrusion, and the docking protrusion is cylindrical. The cylinder is the same size as the hole in the external pipe. By inserting the docking protrusion into the hole in the external pipe for docking and fixing, it is convenient for the operator to rotate the threaded ring 202 to quickly install the external pipe. The protrusion is connected to a limit frame 208, and the limit frame 208 is slidably connected to the fixing block 206. The limit frame 208 can limit the fixing block 206 to improve the stability of the limit frame 208 during vertical movement.

[0034] There are six sets of fixing blocks 206, and all six sets of fixing blocks 206 are beveled on the side of the docking ring 201. By making the fixing blocks 206 beveled, they can push the external pipe to fit against the docking ring 201 during vertical movement, improving the sealing performance after connection with the external pipe. The transmission rod 204 is a cuboid, and the transmission rod 204 is connected to the transmission disc 203 by welding. The transmission rod 204 can limit the movement of the transmission disc 203 to prevent the threaded ring 202 from forming. When the transmission disk 203 is rotated, a protective ring 209 is connected to the outer wall of the docking ring 201, and the protective ring 209 fits in close contact with the transmission disk 203. By setting the protective ring 209, the exposed part of the transmission rod 204 can be protected to avoid damage to the transmission rod 204 caused by external collisions. A sealing ring is set on the outer side of the docking ring 201, and the sealing ring fits in close contact with the external pipe. When the sealing gasket is connected to the external pipe, it will deform, thereby improving the sealing performance of the docking ring 201 after it is connected to the external pipe.

[0035] Working principle: First, when it is necessary to disassemble the external pipe, rotate the threaded ring 202. The threaded ring 202 rotates horizontally under the influence of the thread. Since the threaded ring 202 is rotatably connected to the transmission disk 203, the horizontal movement of the threaded ring 202 drives the transmission disk 203 to move. The movement of the transmission disk 203 drives the transmission rod 204 to move. Since the transmission rod 204 is hinged to the connecting rod 205, and the connecting rod 205 is hinged to the fixed block 206, the horizontal movement of the transmission rod 204 will drive the fixed block 206 to move into the docking protrusion of the docking ring 201. During the movement, the fixed block 206 will separate from the external pipe. After the fixed block 206 separates from the external pipe, the external pipe can be manually pulled to complete the disassembly.

[0036] Secondly, when it is necessary to connect the valve to an external pipeline, insert the mating protrusion of the mating ring 201 into the hole at the port of the external pipeline, and then rotate the threaded ring 202 in the opposite direction. The rotation of the threaded ring 202 drives the transmission disc 203 to move horizontally. The horizontal movement of the transmission disc 203 drives the transmission rod 204 to move horizontally inside the mating ring 201. The movement of the transmission rod 204 into the mating ring 201 drives the fixing block 206 to move outward from the mating ring 201. During the movement, the fixing block 206 will fit against the external pipeline. Since the fixing block 206 has a slanted shape, during the vertical movement of the fixing block 206, it will push the external pipeline to fit against the mating ring 201, thus completing the docking and fixing of the external pipeline and the device.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cryogenic exhaust valve, characterized in that... ,include: The valve body has threads on the outer walls of the pipes at both ends. The fixing part is located at both ends of the valve body. The fixing part has a docking ring connected to both ends of the valve body. The valve body has threaded rings threaded to both ends. The threaded ring is rotatably connected to a transmission disc on one side of the docking ring. The transmission disc is connected to a transmission rod on one side of the docking ring. The transmission rod is slidably connected to the docking ring. The transmission rod is hinged to a connecting rod at one end inside the docking ring. The other end of the connecting rod is hinged to a fixing block. The horizontal movement of the transmission rod causes the connecting rod to rotate, thereby driving the fixing block to move vertically.

2. The cryogenic exhaust valve according to claim 1, characterized in that: The fixing part also has a sliding rod fixedly connected inside the docking ring, and the sliding rod is slidably connected to the transmission rod.

3. A cryogenic exhaust valve according to claim 1, characterized in that: The other side of the docking ring connected to the valve body is provided with a docking protrusion, which is cylindrical and has the same size as the hole in the external pipe.

4. A cryogenic exhaust valve according to claim 3, characterized in that: The protrusion is internally connected to a limiting frame, and the limiting frame is slidably connected to the fixed block.

5. A cryogenic exhaust valve according to claim 1, characterized in that: There are six sets of fixing blocks, and all six sets of fixing blocks are located on the docking ring side with a beveled shape.

6. A cryogenic exhaust valve according to claim 1, characterized in that: The transmission rod is a cuboid, and the transmission rod is connected to the transmission disc by welding.

7. A cryogenic exhaust valve according to claim 1, characterized in that: The outer wall of the docking ring is connected to a protective ring, and the protective ring is in contact with the transmission disc.

8. A cryogenic exhaust valve according to claim 1, characterized in that: A sealing ring is provided on the outside of the docking ring, and the sealing ring is in contact with the external pipe.

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