Connecting assembly based on cylinder pressure gauge

Abstract

The utility model relates to the technical field of pressure gauge assemblies, and discloses a connecting assembly based on a cylinder pressure gauge, which comprises a connecting pipeline, the end part of the connecting pipeline is fixedly connected with a thread head, and the outer wall of the thread head is in threaded connection with a pressure gauge; and the medium cooling mechanism is arranged in the middle of the connecting pipeline, and the medium cooling mechanism is used for reducing the temperature of the medium. Through the overall design of the medium cooling mechanism, external cold air can be introduced into the inner cavities of the air inlet through groove, the exhaust through groove and the copper channel to flow, and in the flowing process, the cold air exchanges heat with the medium in the inner cavity of the cooling box through the copper channel, so that the temperature of the medium is reduced; the problem that the pressure gauge is easily damaged by a high-temperature medium is avoided, the service life of the pressure gauge is prolonged, and through the shape and distribution design of the copper channels, the flow path of the medium can be prolonged, the flow velocity can be slowed down, and the function of buffering and protecting the pressure gauge is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure gauge assembly technical field, specifically, relate to a kind of based on cylinder pressure gauge connection assembly. BACKGROUND

[0002] Cylinder pressure gauge is a kind of instrument specially used to measure the pressure of gas inside cylinder, usually installed in the pipeline of cylinder or pneumatic system, and displays pressure value in real time through mechanical or electronic method. Its core function is to monitor the working state of cylinder, ensure that gas pressure is stable within the set range, and prevent equipment failure caused by excessive or low pressure. Common types include mechanical and digital, widely used in industrial automation, mechanical equipment and other fields. Pressure gauge connecting pipe is a pipe component used to connect pressure gauge and measured pressure system, usually made of metal (such as copper, stainless steel) or pressure-resistant plastic, which transmits medium pressure and ensures sealing.

[0003] Traditional pressure gauge connecting pipe does not have the function of cooling medium. During maintenance of automobile cylinder, pressure monitoring is required. The temperature of combustion gas in the cylinder can reach 400°C or above. High-temperature gas will be conducted to the inside of the pressure gauge through the connecting pipe, causing the core components such as spring tube and gear mechanism to deform due to heat, resulting in measurement error or component damage. SUMMARY

[0004] The utility model aims at providing a kind of based on cylinder pressure gauge connection assembly, solve the problem that high-temperature gas in the interior of automobile cylinder in prior art is easy to cause pressure gauge damage.

[0005] The utility model provides the following technical scheme: a kind of based on cylinder pressure gauge connection assembly, comprising:

[0006] Connecting pipe, the end of the connecting pipe is fixedly connected with a threaded head, and the outer wall of the threaded head is threadedly connected with a pressure gauge;

[0007] Medium cooling mechanism, the medium cooling mechanism is arranged in the middle of the connecting pipe, and the medium cooling mechanism is used to reduce the temperature of medium;

[0008] Quick replacement mechanism, the quick replacement mechanism is arranged at the end of the connecting pipe away from the threaded head, and the quick replacement mechanism is used to quickly replace the interface;

[0009] The medium cooling mechanism comprises a cooling box, the cooling box is fixedly connected at the middle part of the connecting pipeline, air inlet grooves are formed in the side of the cooling box, air outlet grooves are formed in the other side of the cooling box, a copper channel is fixedly connected to the inner wall of the cooling box, the air inlet grooves, the air outlet grooves and the copper channel are communicated, a fixed block is fixedly installed on the outer wall of the cooling box, and a rubber strip is fixedly connected to the outer wall of the fixed block.

[0010] As the preferred technical scheme, the outer wall of the cooling box is fixedly installed with a connecting cover, the top of the connecting cover is fixedly connected with a fan, and the top of the fan is detachably connected with a filter cover.

[0011] As the preferred technical scheme, the outer wall of the connecting cover is fixedly installed with a supporting block, a battery box is fixedly installed on the outer wall of the supporting block, and a switch is fixedly installed on the outer wall of the supporting block.

[0012] As the preferred technical scheme, the outer wall of the connecting cover is fixedly installed with a supporting block, a battery box is fixedly installed on the outer wall of the supporting block, and a switch is fixedly installed on the outer wall of the supporting block.

[0013] As the preferred technical scheme, the outer wall of the connecting cover is fixedly installed with a supporting block, a battery box is fixedly installed on the outer wall of the supporting block, and a switch is fixedly installed on the outer wall of the supporting block.

[0014] As the preferred technical scheme, the outer wall of the connecting cover is fixedly installed with a supporting block, a battery box is fixedly installed on the outer wall of the supporting block, and a switch is fixedly installed on the outer wall of the supporting block.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The medium cooling mechanism is designed as a whole, cold air in the outside world can be introduced into the inner cavities of the air inlet grooves, the air outlet grooves and the copper channel, in the flowing process, the cold air exchanges heat with the medium in the inner cavity of the cooling box through the copper channel, the temperature of the medium is reduced, the problem that the high-temperature medium easily causes the damage of the pressure gauge is avoided, the service life is prolonged, and the shape and distribution of the copper channel can prolong the medium flow path and slow down the flow speed, part of kinetic energy is consumed due to internal friction when the medium flows in the cooling box, and the function of buffering and protecting the pressure gauge is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the utility model;

[0018] Figure 2It is rear side structure schematic view of the cooling box of the utility model.

[0019] Figure 3 It is structure schematic view of the connecting cover of the utility model.

[0020] Figure 4 It is structure schematic view of the quick replacement mechanism of the utility model.

[0021] In the figure: 1, connecting pipeline; 11, threaded head; 12, pressure gauge; 2, medium cooling mechanism; 21, cooling box; 211, fixed block; 212, rubber strip; 22, air inlet channel; 23, exhaust channel; 24, copper passage; 25, connecting cover; 26, fan; 27, filter cover; 28, support block; 281, battery box; 282, switch; 3, quick replacement mechanism; 31, end pipe; 311, sleeve; 312, groove; 313, limiting block; 314, magnetic suction block; 32, connecting head; 33, sealing ring; 34, support sleeve; 35, assembly support leg; 36, connecting pipe opening. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model.

[0023] As Figures 1-4 shown, the utility model provides a technical scheme: a connecting assembly based on cylinder pressure gauge, comprising:

[0024] Connecting pipeline 1, the end of connecting pipeline 1 is fixedly connected with threaded head 11, and the outer wall of threaded head 11 is threadedly connected with pressure gauge 12;

[0025] Medium cooling mechanism 2, medium cooling mechanism 2 is arranged in the middle of connecting pipeline 1, and medium cooling mechanism 2 is used to reduce the temperature of medium;

[0026] Quick replacement mechanism 3, quick replacement mechanism 3 is arranged at the end of connecting pipeline 1 away from threaded head 11, and quick replacement mechanism 3 is used to quickly replace interface;

[0027] The medium cooling mechanism 2 comprises a cooling box 21 fixedly connected at the middle of the connecting pipeline 1, the side of the cooling box 21 is provided with an air inlet channel 22, the other side of the cooling box 21 is provided with an air outlet channel 23, the inner wall of the cooling box 21 is fixedly connected with a copper channel 24, the inner cavities of the air inlet channel 22, the air outlet channel 23 and the copper channel 24 are communicated, the outer wall of the cooling box 21 is fixedly installed with a fixed block 211, the outer wall of the fixed block 211 is fixedly connected with a rubber strip 212, in use, the external cold air can be introduced into the inner cavities of the air inlet channel 22, the air outlet channel 23 and the copper channel 24, in the process of the cold air flowing, the cold air can exchange heat with the medium in the inner cavity of the cooling box 21 through the copper channel 24, so that the temperature of the medium is reduced, the problem that the high-temperature medium is easy to cause the pressure gauge 12 to be damaged is avoided, through the shape and distribution design of the copper channel 24, the medium flow path can be prolonged and the flow speed can be slowed down, when the medium flows in the cooling box 21, part of kinetic energy is consumed due to internal friction, that is, the function of buffering and protecting the pressure gauge 12 is realized, the rubber strip 212 can be attached to the air outlet channel 23 in a natural state, the air outlet channel 23 is closed, the dustproof function is realized, when the cold air is introduced into the air inlet channel 22, the air outlet channel 23 and the copper channel 24, the rubber strip 212 can be deformed through air pressure, so that the gas can pass through.

[0028] As an embodiment in the present embodiment, as shown in Figure 3 The outer wall of the cooling box 21 is fixedly installed with a connecting cover 25, the top of the connecting cover 25 is fixedly connected with a fan 26, the top of the fan 26 is detachably connected with a filter cover 27, the fan 26 is controlled to work, the external cold air filtered by the filter cover 27 can be absorbed and then conveyed into the inner cavity of the connecting cover 25, then enters the air inlet channel 22, the air outlet channel 23 and the copper channel 24, so as to cool the medium, the filter cover 27 is installed on the fan 26 by means of bolts, during maintenance, the filter cover 27 can be detached and cleaned.

[0029] As an embodiment in the present embodiment, as shown in Figure 3 The outer wall of the connecting cover 25 is fixedly installed with a supporting block 28, the outer wall of the supporting block 28 is fixedly installed with a battery box 281, the outer wall of the supporting block 28 is fixedly installed with a switch 282, the battery box 281, the switch 282 and the fan 26 are electrically connected, the battery box 281 comprises a battery inside, the battery is used for power supply of the fan 26, the switch 282 is used for controlling the opening and closing of the fan 26, it is worth noting that the battery box 281, the switch 282 and the fan 26 in the present scheme are devices that can be purchased in the market by the person skilled in the art, the structure of the device is not improved in the present article, thus the working principle of the device is well known by the person skilled in the art relying on professional knowledge, although the electric control program part is not described in detail in the present scheme, the person skilled in the art can well know and apply it according to professional knowledge.

[0030] As an embodiment in the present embodiment, as shown in Figure 4 The quick replacement mechanism 3 includes an end pipe 31 fixedly connected to one end of the connecting pipe 1 away from the threaded head 11. A sleeve 311 is fixedly installed on the outer wall of the end pipe 31. A groove 312 is formed in the outer wall of the sleeve 311. The end pipe 31, the sleeve 311, and the groove 312 facilitate the overall disassembly and assembly of the connecting pipe 36 at the end of the connecting pipe 1, allowing the replacement of connecting pipes 36 of different specifications for different automobile cylinders.

[0031] As an embodiment in the present embodiment, as shown in Figure 4 A limiting block 313 is fixedly installed on the outer wall of the sleeve 311. A magnetic block 314 is fixedly installed on the inner wall of the limiting block 313. The assembly leg 35 is made of magnetic material. The magnetic block 314 can magnetically attract the assembly leg 35 to temporarily fix the position of the assembly leg 35, increasing the stability of the assembly leg 35 clamped on the sleeve 311.

[0032] As an embodiment in the present embodiment, as shown in Figure 4 A connecting head 32 is movably inserted into the inner cavity of the end pipe 31. A sealing ring 33 is fixedly connected to the outer wall of the connecting head 32. A support sleeve 34 is fixedly sleeved on the outer wall of the connecting head 32. An assembly leg 35 is fixedly installed on the outer wall of the support sleeve 34. A connecting pipe 36 is fixedly connected to one end of the connecting head 32 away from the end pipe 31. The assembly leg 35 facilitates the installation of the connecting pipe 36 in cooperation with the sleeve 311 and the groove 312. The sealing ring 33 seals the connection between the end pipe 31 and the connecting head 32. The connecting pipe 36 is a structure for connecting the cylinder. When the connecting pipe 36 is installed on the end pipe 31, the assembly leg 35 is inserted into the groove 312. After the insertion is completed, the assembly leg 35 is rotated to be out of position with the groove 312.

[0033] Working principle: In use, the connecting pipe 36 of the appropriate specification is installed. The assembly leg 35 is inserted into the groove 312. After the insertion is completed, the assembly leg 35 is rotated to be out of position with the groove 312. The magnetic block 314 magnetically attracts the assembly leg 35 to temporarily fix the position of the assembly leg 35. Then, the connecting pipe 36 is connected to the measuring end of the cylinder. The air pressure can be monitored by the pressure gauge 12. During the process, the air fan 26 is controlled to work, absorbing the external cold air filtered by the filter cover 27, and then conveying it into the inner cavity of the connecting cover 25, and then into the air inlet channel 22, the air outlet channel 23, and the copper channel 24. During the flow of the cold air, the copper channel 24 exchanges heat with the medium in the inner cavity of the cooling box 21, reducing the temperature of the medium and protecting the pressure gauge 12.

[0034] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them.

Claims

1. A connection assembly for a cylinder pressure gauge, characterized by Include: The end of the connecting pipe (1) is fixedly connected with a threaded head (11), and the outer wall of the threaded head (11) is threadedly connected with a pressure gauge (12); The medium cooling mechanism (2) is arranged in the middle of the connecting pipe (1), and is used for reducing the temperature of the medium; The quick replacement mechanism (3) is arranged at one end of the connecting pipe (1) away from the threaded head (11), and is used for quickly replacing the interface; The medium cooling mechanism (2) includes a cooling box (21) fixedly connected to the middle of the connecting pipe (1), a gas inlet channel (22) is formed in the side of the cooling box (21), an exhaust channel (23) is formed in the other side of the cooling box (21), a copper channel (24) is fixedly connected to the inner wall of the cooling box (21), the inner cavities of the gas inlet channel (22), the exhaust channel (23) and the copper channel (24) are communicated, a fixed block (211) is fixedly installed on the outer wall of the cooling box (21), and a rubber strip (212) is fixedly connected to the outer wall of the fixed block (211).

2. A connection assembly for a cylinder pressure gauge according to claim 1, characterized in that: A connecting cover (25) is fixedly installed on the outer wall of the cooling box (21), a fan (26) is fixedly connected to the top of the connecting cover (25), and a filter cover (27) is detachably connected to the top of the fan (26).

3. A connection assembly for a cylinder pressure gauge according to claim 2, characterized in that: A support block (28) is fixedly installed on the outer wall of the connecting cover (25), a battery box (281) is fixedly installed on the outer wall of the support block (28), and a switch (282) is fixedly installed on the outer wall of the support block (28).

4. A connection assembly for a cylinder pressure gauge according to claim 1, characterized in that: The quick replacement mechanism (3) includes an end pipe (31) fixedly connected to one end of the connecting pipe (1) away from the threaded head (11), a sleeve (311) is fixedly installed on the outer wall of the end pipe (31), and a groove (312) is formed in the outer wall of the sleeve (311).

5. A connection assembly for a cylinder pressure gauge according to claim 4, characterized in that: A limiting block (313) is fixedly installed on the outer wall of the sleeve (311), and a magnetic attraction block (314) is fixedly installed on the inner wall of the limiting block (313).

6. A connection assembly for a cylinder pressure gauge according to claim 5, characterized in that: A connecting head (32) is movably inserted into the inner cavity of the end pipe (31), a sealing ring (33) is fixedly connected to the outer wall of the connecting head (32), a support sleeve (34) is fixedly sleeved on the outer wall of the connecting head (32), an assembly support leg (35) is fixedly installed on the outer wall of the support sleeve (34), and a connecting pipe (36) is fixedly connected to one end of the connecting head (32) away from the end pipe (31).

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