Hard pipeline air leakage detection device for heating and ventilation equipment

Abstract

An air leakage detection device for a hard pipeline of heating and ventilation equipment relates to the technical field of pipeline detection and is characterized in that a detection sleeve is movably sleeved on a pipeline body, and a detection pipe is arranged in the middle of the detection sleeve in a penetrating manner; the abutting plates are symmetrically screwed to the inner wall of the detection sleeve at equal angles through springback rotating shafts, and the ends of the abutting plates abut against the pipeline body in a matched mode. The two sealing bags are symmetrically arranged on the inner walls of the left side and the right side of the detection sleeve respectively, the sealing bags abut against the side faces of the abutting plates in a matched mode, the two inflation pipes are arranged on the sealing bags respectively, and the inflation pipes are arranged on the detection sleeve in a penetrating mode; the barometer is arranged on the front side surface of the detection sleeve, and the detection end of the barometer is located at the outer end of the detection sleeve; the left end and the right end of the detection sleeve are conveniently sealed through the sealing bag, the air pressure in the detection sleeve is detected through the detection pipe, and the air tightness of a long pipeline is conveniently detected.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection, in particular to a device for detecting air leakage in hard pipelines of HVAC equipment. Background Art

[0002] During the installation of HVAC equipment, hard pipes are often required. Once a hard pipe leaks, it is easy to waste energy and cause certain losses. Therefore, it is necessary to detect air leakage in the hard pipe during the production of the pipe. Existing pipe detection equipment can only detect short pipes and is not convenient for detecting long pipes. Therefore, a HVAC equipment hard pipe air leakage detection device is urgently needed to solve the above problem. Utility Model Content

[0003] The purpose of the utility model is to provide a device for detecting air leakage in hard pipes of HVAC equipment in view of the defects and shortcomings of the prior art, and the technical features thereof can solve the above-mentioned problems.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: it comprises:

[0005] The detection sleeve is a cylindrical structure with openings on the left and right sides. The detection sleeve is movably mounted on the pipeline body, and a detection tube is provided through the middle of the detection sleeve;

[0006] The contact plates are multiple, and the multiple contact plates are respectively symmetrically screwed on the inner wall of the detection sleeve at equal angles by using the rebound rotating shaft, and the ends of the contact plates are arranged to contact with the pipeline body;

[0007] Sealing capsules, there are two sealing capsules, which are symmetrically arranged on the inner walls of the left and right sides of the detection sleeve, and the sealing capsules are arranged in abutment with the side of the abutment plate, and two inflation tubes are arranged on the sealing capsules, and the inflation tubes are arranged through the detection sleeve;

[0008] A barometer, wherein the barometer is disposed on the front side of the detection sleeve, and a detection end of the barometer is located at the outer end of the detection sleeve;

[0009] The detection plate is movably arranged in the detection tube, the pressure screw is threadedly connected to the top of the detection tube, and the bottom end of the pressure screw is connected to the detection plate, the rotating ring is threadedly connected to the pressure screw, and the bottom end of the rotating ring is screwed to the top surface of the detection tube using a bearing.

[0010] By adopting the above design scheme, the sealing bag is filled with air through the inflation tube, so that the sealing bag seals the left and right sides of the detection sleeve, and then the rotating ring is rotated to make the pressure screw drive the detection plate to move in the detection tube, so that the detection sleeve is in a high-pressure state, and the air tightness of the pipeline body is detected by the changes in the pressure gauge.

[0011] Preferably, the left and right ends of the detection sleeve are provided with limit assemblies, and the limit assemblies include:

[0012] Limit rods, there are several limit rods, one side of the limit rods is screwed to the left and right ends of the detection sleeve by a rebound shaft, and one end of the limit rod is provided with a roller;

[0013] Limiting rings, there are two limiting rings, the two limiting rings are movably sleeved on the left and right sides of the detection sleeve, and the limiting rings and the limiting rods are arranged in a conflicting manner;

[0014] The limiting screws are two in number, the two limiting screws are respectively threadedly connected to the detection sleeve, and the ends of the limiting screws are screwed to the limiting ring by bearings.

[0015] With the above design, the position of the limit ring is controlled by the limit screw, so that the limit ring drives the limit rod to rotate, so that the limit rod drives the roller to contact the outer wall of the pipe body, thereby limiting the position of the detection sleeve.

[0016] Preferably, a push rod is provided on the detection sleeve, so that an operator can drive the detection sleeve to move on the pipeline body through the push rod.

[0017] Preferably, the rotating ring is provided with a hexagonal edge, so that an operator can use an external wrench to rotate the rotating ring.

[0018] Preferably, a sealing gasket is provided on the bottom surface of the detection plate to increase the sealing performance of the detection plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. Set up a sealing bag to seal the left and right ends of the detection set, and then use the detection tube to detect the air pressure in the detection set, so as to detect the air tightness of a long pipeline;

[0021] 2. Set the limit assembly and adjust the angle of the limit rod through the limit ring to limit the position of the detection sleeve on the pipeline body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is a schematic diagram of the internal structure of the detection sleeve in the utility model.

[0024] Figure 3 It is a schematic diagram of the internal structure of the detection tube in the utility model.

[0025] Figure 4 It is a structural schematic diagram of the detection sleeve and the push rod in the utility model.

[0026] Description of reference numerals:

[0027] Detection sleeve 1, pipeline body 2, resistance plate 3, sealing bag 4, inflation tube 5, pressure gauge 6, detection plate 7, pressurizing screw 8, rotating ring 9, limit assembly 10, limit rod 11, roller 12, limit ring 13, limit screw 14, push rod 15, hexagonal edge 16, sealing pad 17, detection tube 18. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings.

[0029] like Figure 1 -- Figure 4 As shown, this specific implementation adopts the following technical solution: it includes:

[0030] The detection sleeve 1 is a cylindrical structure with openings on both sides. The detection sleeve 1 is movably mounted on the pipeline body 2, and a detection tube 18 is provided through the middle of the detection sleeve 1. The air pressure in the detection sleeve 1 is adjusted by the detection tube 18, so as to detect the air tightness of the pipeline body 2. The detection sleeve 1 is provided with a push rod 15, which is convenient for the operator to drive the detection sleeve 1 to move on the pipeline body 2 through the push rod 15;

[0031] The contact plates 3 are multiple, and the multiple contact plates 3 are respectively symmetrically screwed on the inner wall of the detection sleeve 1 at equal angles by using the rebound shaft, and the ends of the contact plates 3 are matched with the pipe body 2 to be set in contact, and the contact plates 3 play a role of limiting;

[0032] The sealing capsule 4 is two in number. The two sealing capsules 4 are symmetrically arranged on the inner walls of the left and right sides of the detection sleeve 1, and the sealing capsules 4 are arranged to cooperate with the side surfaces of the abutment plate 3. Two inflation tubes 5 are arranged on the sealing capsules 4, and the inflation tubes 5 are arranged through the detection sleeve 1. The sealing capsules 4 are filled with air, so that the sealing capsules 4 drive the abutment plate 3 to rotate, so that the end of the abutment plate 3 abuts against the outer wall of the pipeline body 2, thereby limiting the sealing capsules 4, and facilitating the sealing of the left and right ends of the detection sleeve 1;

[0033] The barometer 6 is arranged on the front side of the detection sleeve 1, and the detection end of the barometer 6 is located at the outer end of the detection sleeve 1, so as to facilitate the detection of other changes in the detection sleeve 1;

[0034] The detection plate 7 is movably arranged in the detection tube 18, the pressure screw 8 is threadedly screwed on the top of the detection tube 18, and the bottom end of the pressure screw 8 is connected to the detection plate 7, the rotating ring 9 is threadedly screwed on the pressure screw 8, and the bottom end of the rotating ring 9 is screwed on the top surface of the detection tube 18 by a bearing, and the position of the detection plate 7 is adjusted by the rotating ring 9, thereby adjusting the pressure in the detection sleeve 1, and the rotating ring 9 is provided with a hexagonal edge 16, which is convenient for the operator to rotate the rotating ring 9 with an external wrench, and the bottom surface of the detection plate 7 is provided with a sealing gasket 17 to increase the sealing performance of the detection plate 7;

[0035] The left and right ends of the detection sleeve 1 are provided with limit assemblies 10, and the limit assemblies 10 include:

[0036] A limit rod 11, wherein there are several limit rods 11, one side of which is screwed to the left and right ends of the detection sleeve 1 by a rebound shaft, and a roller 12 is provided at one end of the limit rod 11, which facilitates the limit plate to rotate at the end of the detection sleeve 1 through the rebound shaft;

[0037] The limiting ring 13 is two, and the two limiting rings 13 are movably sleeved on the left and right sides of the detection sleeve 1, and the limiting ring 13 is arranged to cooperate with the limiting rod 11 to abut against each other. The inclination angle of the limiting rod 11 is adjusted according to the position of the limiting ring 13, so that the pipe wheel abuts against the outer wall of the pipeline body 2;

[0038] There are two limit screws 14 , which are respectively screwed on the detection sleeve 1 , and the ends of the limit screws 14 are screwed on the limit ring 13 by bearings, so as to facilitate the adjustment of the position of the limit ring 13 .

[0039] When using the utility model, the operator first sets the detection sleeve 1 on the pipeline body 2, and then rotates the limit screw 14, the limit screw 14 drives the limit ring 13 to move on the detection sleeve 1 until it moves to a suitable position, and the limit ring 13 adjusts the rotation angle of the limit rod 11 through the effect of the rebound shaft, so that the roller 12 abuts against the outer wall of the pipeline body 2, so that the center line of the detection sleeve 1 and the pipeline body 2 are consistent, and at the same time, it is convenient for the operator to drive the detection sleeve 1 to move on the pipeline body 2 through the push rod 15 until it moves to a suitable position, and then push the air pipe 5 to close it. The sealing bag 4 is inflated, and the sealing bag 4 drives the corresponding contact plate 3 to rotate until the end of the contact plate 3 contacts the outer wall of the pipe body 2, and the outer wall of the sealing bag 4 contacts the outer wall of the pipe body 2, thereby sealing and blocking the left and right ends of the detection sleeve 1. Then the operator uses an external wrench to rotate the hexagonal edge 16, so that the pressure screw 8 drives the detection plate 7 to descend in the detection tube 18, thereby adjusting the pressure in the detection sleeve 1 until the pointer on the pressure gauge 6 rotates to a suitable position, and then maintains it for a period of time. When the pointer on the pressure gauge 6 changes, it means that there is a gas leak in the pipe body 2 at this location, otherwise it meets the requirements.

[0040] After adopting the above structure, the beneficial effects of this specific implementation are as follows:

[0041] 1. A sealing bag 4 is provided to seal the left and right ends of the detection sleeve 1, and then the air pressure in the detection sleeve 1 is detected by the detection tube 18, so as to detect the air tightness of a long pipeline;

[0042] 2. A limiting assembly 10 is provided, and the angle of the limiting rod 11 is adjusted by a limiting ring 13 , so as to limit the position of the detection sleeve 1 on the pipeline body 2 .

[0043] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A device for detecting air leakage in hard pipes of HVAC equipment, characterized in that: It contains: A detection sleeve (1), wherein the detection sleeve (1) is a cylindrical structure with openings on the left and right sides, the detection sleeve (1) is movably sleeved on the pipeline body (2), and a detection tube (18) is provided through the middle of the detection sleeve (1); A contact plate (3), wherein there are a plurality of contact plates (3), and the plurality of contact plates (3) are respectively symmetrically screwed onto the inner wall of the detection sleeve (1) at equal angles by means of a rebound rotating shaft, and the end of the contact plate (3) is arranged to contact with the pipeline body (2); Sealing capsules (4), wherein there are two sealing capsules (4), the two sealing capsules (4) are symmetrically arranged on the inner walls of the left and right sides of the detection sleeve (1), and the sealing capsules (4) are arranged to contact with the side surfaces of the contact plate (3), and the two inflation tubes (5) are respectively arranged on the sealing capsules (4), and the inflation tubes (5) are arranged to penetrate the detection sleeve (1); A barometer (6), wherein the barometer (6) is arranged on the front side of the detection sleeve (1), and the detection end of the barometer (6) is located at the outer end of the detection sleeve (1); The detection plate (7) is movably arranged in the detection tube (18), the pressure screw (8) is threadedly screwed on the top of the detection tube (18), and the bottom end of the pressure screw (8) is connected to the detection plate (7), the rotating ring (9) is threadedly screwed on the pressure screw (8), and the bottom end of the rotating ring (9) is screwed on the top surface of the detection tube (18) by means of a bearing.

2. The device for detecting air leakage in a hard pipe of a HVAC equipment according to claim 1, characterized in that: The detection sleeve (1) is provided with limiter components (10) at both left and right ends. The limiter components (10) include: A limiting rod (11), wherein there are a plurality of limiting rods (11), one side of each of the limiting rods (11) is screwed to the left and right ends of the detection sleeve (1) by means of a rebound shaft, and a roller (12) is provided at one end of the limiting rod (11); Limiting rings (13), wherein there are two limiting rings (13), and the two limiting rings (13) are movably sleeved on the left and right sides of the detection sleeve (1), and the limiting rings (13) and the limiting rod (11) are arranged to cooperate with each other; The limiting screws (14) are two in number, and the two limiting screws (14) are respectively screwed onto the detection sleeve (1), and the ends of the limiting screws (14) are screwed onto the limiting ring (13) by means of bearings.

3. The device for detecting air leakage in a hard pipe of a HVAC equipment according to claim 1, characterized in that: The detection sleeve (1) is provided with a pushing rod (15).

4. The device for detecting air leakage in a hard pipe of a HVAC equipment according to claim 1, characterized in that: The rotating ring (9) is provided with a hexagonal edge (16).

5. The device for detecting air leakage in a hard pipe of a HVAC equipment according to claim 1, characterized in that: A sealing gasket (17) is provided on the bottom surface of the detection plate (7).

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