Differential pressure sensor hose

Abstract

The utility model relates to a pressure difference sensor hose in the technical field of sensor hoses. Comprising a hose connecting piece, one side of the hose connecting piece is provided with a differential pressure sensor box body used for limiting the hose connecting piece, and the differential pressure sensor box body comprises a connecting assembly used for limiting the hose connecting piece. When the connecting hose is installed, a third connecting pipe is inserted into a groove cavity of a first limiting groove, a second connecting pipe is synchronously inserted into a groove cavity of a second limiting groove, then a limiting barrel is rotated, an internal thread and an external thread are matched to drive the limiting barrel to move rightwards, the inner wall of the limiting barrel pushes a limiting ring, an inserting rod is driven to push one side of a V-shaped plate, and then the connecting hose is installed. And the vertical plate is inserted into a hole cavity of the positioning hole, so that the second connecting pipe can be locked, the connecting hose can be fixed without rotating the connecting hose, and the connecting hose is not prone to being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor hoses, in particular to a differential pressure sensor hose. Background Art

[0002] The working principle of the differential pressure sensor in the heating and ventilation system is that the measured pressure acts directly on the diaphragm of the sensor, causing the diaphragm to produce a micro-displacement proportional to the air pressure, causing the capacitance value of the sensor to change. This change is then detected by an electronic circuit and converted into an output of a standard measurement signal corresponding to the pressure.

[0003] The function of the hose connected to the differential pressure sensor is to transport the gas inside the sensor to the pressure chamber in the differential pressure sensor. For example, a high-sensitivity differential pressure sensor disclosed in Chinese patent application number CN202211378162.X has the following specific contents: during installation, align the externally threaded hollow tube on the connecting hose with the outwardly expanded threaded hole on the extension ring and rotate it so that the externally threaded hollow tube enters the outwardly expanded threaded hole until it rotates to the bottom. After rotating to the bottom, the first annular sealing gasket and the right surface of the extension ring fit each other to form a sealed fit. At the same time, the second annular sealing gasket on the externally threaded hollow tube and the bottom of the inner wall of the outwardly expanded threaded hole contact each other to form a second sealing structure. After the hardened sleeve and the extension ring are fixed, the reinforcement ring is rotated. Under the action of the first thread groove, the reinforcement ring moves to the right until it covers the second thread groove on the hardened sleeve. At this time, the reinforcement ring covers the outside of the connection between the hardened sleeve and the extension ring, increasing the overall structural strength and anti-pulling ability. It has the following technical problems:

[0004] When the first thread groove is screwed into the outwardly expanded threaded hole, the hose is driven to rotate. The hose is easily twisted during rotation. The twisted hose is easily damaged and affects the gas delivery efficiency. Utility Model Content

[0005] In order to solve the problem that the hose is easily damaged due to twisting proposed in the above background technology, the utility model provides the following technical solutions:

[0006] A differential pressure sensor hose comprises a hose connector;

[0007] A differential pressure sensor box for limiting the position of the hose connector is installed on one side of the hose connector, and the differential pressure sensor box includes a connecting component for limiting the position of the hose connector.

[0008] The connecting assembly includes a connecting tube 1, a plurality of elastic plates for locking the hose connector are installed inside the connecting tube 1, an insertion rod for controlling the elastic plate to approach the hose connector is installed at one end of the elastic plate, and a limiting cylinder for controlling the insertion rod to approach the elastic plate is installed on one side of the insertion rod.

[0009] The hose connector includes a connecting hose, a limiting ring is installed on one side of the connecting hose, a connecting pipe 2 is installed on one side of the limiting ring, and a plurality of positioning holes for locking the connecting pipe 2 in cooperation with the elastic plate are opened on the outer wall of the connecting pipe 2.

[0010] Furthermore, the differential pressure sensor housing comprises a differential pressure sensor body, a pressure chamber is installed at the lower end of the differential pressure sensor body, an air storage box is installed on the right side of the pressure chamber, and an air inlet pipe for limiting the connection assembly is installed on the right side of the air storage box.

[0011] Furthermore, a limiting ring for limiting the position of the insertion rod is installed on one side of the insertion rod, and the inner wall of the limiting cylinder is processed with an internal thread.

[0012] Furthermore, an air inlet hole for gas circulation is provided inside the connecting pipe 1, a limiting groove 1 is provided on the right side of the air inlet hole, a limiting groove 2 is provided on the right side of the limiting groove 1, a sealing gasket 1 is installed on the left side of the groove cavity of the limiting groove 1, and a sealing gasket 2 is installed on the left side of the groove cavity of the limiting groove 2.

[0013] Furthermore, the right outer wall of the connecting tube 1 is processed with an external thread for engaging with the internal thread, and the interior of the connecting tube 1 is provided with a limiting groove 3 for limiting the elastic plate, and the left side of the limiting groove 3 is provided with a limiting groove 4 for allowing the insertion rod to be extended and retracted.

[0014] Furthermore, the elastic plate includes a vertical plate that is retracted in the cavity of the positioning hole, one end of the vertical plate is installed with a V-shaped plate for cooperating with the insertion rod to control the movement of the vertical plate, and the other end of the V-shaped plate is installed with a positioning plate.

[0015] Furthermore, an annular groove is provided on one side of the connecting pipe 2 close to the limiting ring, a sealing gasket 3 is sleeved in the groove cavity of the annular groove, and a connecting pipe 3 for telescoping in the groove cavity of the limiting groove 1 is installed on the left side of the connecting pipe 2.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] When installing the connecting hose, insert the connecting pipe three into the groove cavity of the limiting groove one, and simultaneously insert the connecting pipe two into the groove cavity of the limiting groove two, and then rotate the limiting cylinder so that the internal thread and the external thread cooperate to drive the limiting cylinder to move to the right, and the inner wall of the limiting cylinder pushes the limiting ring, which drives the insertion rod to push one side of the V-shaped plate, so that the vertical plate is inserted into the hole cavity of the positioning hole, so that the connecting pipe two can be locked, and the connecting hose can be fixed without rotating it, which is not easy to cause damage to the connecting hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural schematic diagram of the differential pressure sensor box of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the connection assembly of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the connection assembly of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the V-shaped plate of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the hose connector of the utility model.

[0024] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0025] 001- differential pressure sensor box;

[0026] 100-pressure difference sensor body, 110-pressure chamber, 120-air storage box, 121-intake pipe;

[0027] 200-connecting assembly, 210-connecting pipe 1, 211-air inlet, 212-limiting groove 1, 213-limiting groove 2, 214-sealing gasket 1, 215-sealing gasket 2, 216-external thread, 217-limiting groove 3, 218-limiting groove 4, 220-elastic plate, 221-vertical plate, 222-V-shaped plate, 223-positioning plate, 230-insertion rod, 231-limiting ring 1, 240-limiting cylinder, 241-internal thread;

[0028] 002-Hose connector;

[0029] 300 - connecting hose, 310 - limiting ring 2, 320 - connecting pipe 2, 321 - annular groove, 322 - sealing gasket 3, 323 - positioning hole, 330 - connecting pipe 3. DETAILED DESCRIPTION

[0030] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0031] See also Figure 1-Figure 6 The utility model provides a differential pressure sensor hose, including a differential pressure sensor box 001 and a hose connector 002.

[0032] A differential pressure sensor box 001 for limiting the hose connector 002 is installed on one side of the hose connector 002. The differential pressure sensor box 001 includes a differential pressure sensor body 100. A pressure chamber 110 is installed at the lower end of the differential pressure sensor body 100. An air storage box 120 is installed on the right side of the pressure chamber 110. An air intake pipe 121 for limiting the connection assembly 200 is fixedly installed on the right side of the air storage box 120.

[0033] The differential pressure sensor housing 001 includes a connection assembly 200 for limiting the position of the hose connector 002, and the connection assembly 200 includes a connection pipe 1 210, and the connection pipe 1 210 is fixedly installed on the right side of the air inlet pipe 121. An air inlet hole 211 for gas circulation is provided inside the connection pipe 1 210, a limiting groove 1 212 is provided on the right side of the air inlet hole 211, and a limiting groove 213 is provided on the right side of the limiting groove 1 212, so that the gas in the connection hose 300 is conveniently transported to the inside of the gas storage box 120 through the limiting groove 213, the limiting groove 1 212 and the air inlet hole 211.

[0034] A sealing gasket 214 is installed on the left side of the groove cavity of the limiting groove 212. When the connecting pipe 330 is inserted into the groove cavity of the limiting groove 212, the left wall of the connecting pipe 330 and the sealing gasket 214 are pressed tightly to prevent gas leakage. A sealing gasket 215 is installed on the left side of the groove cavity of the limiting groove 213. The left wall of the connecting pipe 320 and the sealing gasket 215 are pressed tightly to further prevent gas leakage. The right wall of the connecting pipe 210 and the left wall of the sealing gasket 322 are pressed tightly to prevent gas leakage.

[0035] The right outer wall of the connecting tube 210 is processed with an external thread 216 for engaging with the internal thread 241, and the interior of the connecting tube 210 is provided with a limiting groove 3 217 for limiting the elastic plate 220, and the left side of the limiting groove 3 217 is provided with a limiting groove 4 218 for the extension and retraction of the insertion rod 230.

[0036] A plurality of elastic plates 220 for locking the hose connector 002 are installed inside the connecting tube 1 210. The elastic plate 220 includes a vertical plate 221 that is retracted and extended in the cavity of the positioning hole 323. A V-shaped plate 222 is fixedly installed at one end of the vertical plate 221 for cooperating with the insertion rod 230 to control the movement of the vertical plate 221. A positioning plate 223 is fixedly installed at the other end of the V-shaped plate 222. The limiting cylinder 240 pushes the limiting ring 1 231, so that one end of the insertion rod 230 and the side of the V-shaped plate 222 close to the vertical plate 221 collide with each other, driving the vertical plate 221 to move toward the cavity of the positioning hole 323, and 2221 is inserted into the cavity of the positioning hole 323 to lock the connecting tube 2 320.

[0037] One end of the elastic plate 220 is equipped with an insertion rod 230 for controlling the elastic plate 220 to approach the hose connector 002, and one side of the insertion rod 230 is fixedly installed with a limiting ring 231 for limiting the insertion rod 230, and a plurality of insertion rods 230 are fixedly installed on the right side of the limiting ring 231, and one side of the insertion rod 230 is equipped with a limiting cylinder 240 for controlling the insertion rod 230 to approach the elastic plate 220, and the inner wall of the limiting cylinder 240 is processed with an internal thread 241. When the hose connector 002 is fixed, the limiting cylinder 240 is rotated to allow the inner thread 241 to be moved. The thread 241 and the external thread 216 cooperate to drive the limit cylinder 240 to move to the right, and the inner wall of the limit cylinder 240 pushes the limit ring 1 231, driving the insertion rod 230 to push one side of the V-shaped plate 222, so that the vertical plate 221 is inserted into the cavity of the positioning hole 323, and the connecting pipe 2 320 is locked. When the hose connector 002 is disassembled, the limit cylinder 240 is rotated in the opposite direction, the V-shaped plate 222 is reset to push the insertion rod 230, and the vertical plate 221 is moved out of the cavity of the positioning hole 323 at the same time, releasing the lock on the connecting pipe 2 320.

[0038] The hose connector 002 includes a connecting hose 300, a limiting ring 210 is fixedly installed on one side of the connecting hose 300, a connecting pipe 220 is fixedly installed on one side of the limiting ring 210, an annular groove 321 is provided on the side of the connecting pipe 220 close to the limiting ring 210, a sealing gasket 322 is sleeved in the groove cavity of the annular groove 321 for preventing gas leakage, a connecting pipe 330 for telescoping in the groove cavity of the limiting groove 1 212 is fixedly installed on the left side of the connecting pipe 220, and a plurality of positioning holes 323 are provided on the outer wall of the connecting pipe 220 for cooperating with the elastic plate 220 to lock the connecting pipe 220.

[0039] When installing the connecting hose 300, the connecting pipe three 330 is inserted into the groove cavity of the limiting groove one 212, and the connecting pipe two 320 is simultaneously inserted into the groove cavity of the limiting groove two 213, and then the limiting cylinder 240 is rotated so that the internal thread 241 and the external thread 216 cooperate to drive the limiting cylinder 240 to move to the right, and the inner wall of the limiting cylinder 240 pushes the limiting ring one 231, and drives the insertion rod 230 to push one side of the V-shaped plate 222, so that the vertical plate 221 is inserted into the hole cavity of the positioning hole 323, so that the connecting pipe two 320 can be locked, and the connecting hose 300 can be fixed without rotating the connecting hose 300, and it is not easy to cause damage to the connecting hose 300.

[0040] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A differential pressure sensor hose, comprising a hose connector (002), Features: A differential pressure sensor box (001) for limiting the position of the hose connector (002) is installed on one side of the hose connector (002), and the differential pressure sensor box (001) comprises a connection assembly (200) for limiting the position of the hose connector (002); The connection assembly (200) comprises a connection tube (210), a plurality of elastic plates (220) for locking the hose connector (002) are installed inside the connection tube (210), an insertion rod (230) for controlling the elastic plate (220) to approach the hose connector (002) is installed at one end of the elastic plate (220), and a limiting cylinder (240) for controlling the insertion rod (230) to approach the elastic plate (220) is installed at one side of the insertion rod (230); The hose connector (002) comprises a connecting hose (300), a limiting ring (310) being installed on one side of the connecting hose (300), a connecting pipe (320) being installed on one side of the limiting ring (310), and a plurality of positioning holes (323) for cooperating with the elastic plate (220) to lock the connecting pipe (320) on the outer wall of the connecting pipe (320).

2. A differential pressure sensor hose according to claim 1, Features: The differential pressure sensor housing (001) comprises a differential pressure sensor body (100), a pressure chamber (110) being installed at the lower end of the differential pressure sensor body (100), an air storage box (120) being installed on the right side of the pressure chamber (110), and an air intake pipe (121) for limiting the position of the connection assembly (200) being installed on the right side of the air storage box (120).

3. The differential pressure sensor hose according to claim 1, Features: A limiting ring (231) for limiting the position of the inserting rod (230) is installed on one side of the inserting rod (230), and an internal thread (241) is processed on the inner wall of the limiting cylinder (240).

4. The differential pressure sensor hose according to claim 1, Features: An air inlet hole (211) for gas circulation is provided inside the connecting pipe (210), a limiting groove (212) is provided on the right side of the air inlet hole (211), a limiting groove (213) is provided on the right side of the limiting groove (212), a sealing gasket (214) is installed on the left side of the groove cavity of the limiting groove (212), and a sealing gasket (215) is installed on the left side of the groove cavity of the limiting groove (213).

5. The differential pressure sensor hose according to claim 1, Features: The right outer wall of the connecting tube 1 (210) is processed with an external thread (216) for engaging with the internal thread (241), and the interior of the connecting tube 1 (210) is provided with a limiting groove 3 (217) for limiting the elastic plate (220), and the left side of the limiting groove 3 (217) is provided with a limiting groove 4 (218) for allowing the insertion rod (230) to be extended and retracted.

6. The differential pressure sensor hose according to claim 1, Features: The elastic plate (220) comprises a vertical plate (221) that is retracted and extended in the cavity of the positioning hole (323); a V-shaped plate (222) is installed at one end of the vertical plate (221) for cooperating with the insertion rod (230) to control the movement of the vertical plate (221); and a positioning plate (223) is installed at the other end of the V-shaped plate (222).

7. The differential pressure sensor hose according to claim 4, Features: The second connecting pipe (320) is provided with an annular groove (321) on one side close to the second limiting ring (310), and a sealing gasket (322) is sleeved in the groove cavity of the annular groove (321). The left side of the second connecting pipe (320) is provided with a third connecting pipe (330) for telescoping in the groove cavity of the first limiting groove (212).

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