CN116337365A - Airtightness detection device and pipeline airtightness detection method for heating and ventilation pipelines of buildings - Google Patents

Abstract

The invention discloses an airtightness detection device and a method for detecting the airtightness of a heating and ventilation pipeline in a building, which can effectively solve the problem that the traditional heating and ventilation pipeline airtightness detection device has a single structure and cannot be conveniently used in the process of use. For the problem that the batch detection function cannot be realized by limiting the position of the pipeline, the air-tightness detection device of the building HVAC pipeline of the present invention can conveniently clamp and position the pipeline, ensure the stability of the pipeline, and at the same time realize the purpose of automatic feeding, The detection efficiency of the air tightness of the pipeline is improved. The invention solves the problem that the existing pipeline airtightness detection device cannot conveniently limit and feed the pipeline.

Description

Airtightness detection device and pipeline airtightness detection method for heating and ventilation pipelines of buildings

technical field

The invention relates to the technical field of building construction, in particular to an airtightness detection device and a pipeline airtightness detection method for heating and ventilation pipes in building construction.

Background technique

HVAC pipe is a kind of pipe used in HVAC industry to pass medium and high temperature liquid or gas. For long-distance heating and ventilation pipes, it is generally formed by butting two or more pipes. Each section of HVAC pipeline must ensure airtightness.

The existing pipeline airtightness detection device, such as the Chinese invention with the patent number CN112067212A, provides "a pipeline airtightness detection device", but the pipeline airtightness detection device in this patent has a relatively weak structure during use. Single, it is impossible to conveniently limit the position of the pipeline, and at the same time, it cannot play the function of feeding materials, which is not conducive to the mass production and inspection of pipelines.

The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art.

Contents of the invention

In order to overcome the defects existing in the prior art, a device for detecting the airtightness of HVAC pipelines in buildings and a method for detecting the airtightness of pipelines are provided to solve the problem that the existing pipeline airtightness detection devices cannot conveniently limit the pipelines. Bit and feed issues.

In order to achieve the above purpose, a device for detecting the air tightness of heating and ventilation pipes in housing construction is provided, including:

a base, a housing box is installed at one end of the base, and a first chute is formed at the other end of the base;

The air pump arranged in the storage box, the storage box is movably provided with a laminate, the air pump is installed on the laminate, and the bottom of the storage box is vertically provided with two guide sleeves , the two guide sleeves are arranged below the opposite ends of the laminate, a support rod is slidably provided in the guide sleeve, and the support rod is connected to the bottom of the guide sleeve through an elastic member, so The support rod is connected to the laminate, and a damper is connected between the laminate and the bottom of the storage box;

A sealing joint for sealingly connecting the pipeline to be tested is installed on the outside of the storage box, and the sealing joint is connected to the air pump through a hose;

Bearing platform, the bottom of the bearing platform is formed with a slider, the slider is slidably arranged in the first chute, one end of the bearing platform is fixedly installed with a clamping piece, and the other end of the bearing platform can be positioned at The clamping piece is installed on the ground;

The driving structure is installed on the base, and after the clamping member is clamped on the pipe to be tested, the driving structure drives the platform so that one end of the pipe to be tested is sealed and connected to the sealing joint .

Further, an installation space is formed in the base, and the top of the installation space communicates with the first chute, and a guide rod arranged along the length direction of the first chute is installed in the first chute , the slider is provided with a perforation, the guide rod can be movably penetrated in the perforation, and the driving structure includes:

A screw rod is rotatably installed in the installation hole, and the screw rod is arranged in the same direction as the guide rod;

A threaded sleeve, connected to the cap, and the threaded sleeve is screwed to the screw;

The motor installed on the base is connected to the screw by transmission.

Further, the motor is connected to the screw through a belt drive.

Further, the clamping piece includes:

The supporting plate is installed on the cap, the opposite sides of the supporting plate are respectively formed with ear plates, and the ear plates are provided with threaded holes;

A push rod, the push rod is formed with external threads, the push rod is screwed into the threaded hole, and one end of the push rod extends to the opposite sides of the two ear plates;

The clamping plate is connected to one end of the push rod, and a clamping space for clamping the pipeline to be tested is formed between the clamping plates on the two push rods.

Further, the plywood is laid with a protective cushion.

Further, a second chute is provided on the top of the platform, and rollers are installed on the bottom of a support plate of the clamping member, and the rollers are slidably arranged in the second chute.

The invention provides a construction method of an air-tightness detection device for a building HVAC pipeline, comprising the following steps:

hoisting the pipeline to be tested to the top of the platform so that the clamping parts at both ends of the platform are clamped to the two ends of the pipeline to be tested, so that one end of the pipeline to be tested is aligned with the sealing joint;

closing the other end of the pipeline to be tested;

The driving structure drives the bearing platform so that one end of the pipeline to be tested is in sealing connection with the sealing joint;

The air pump inflates the pipeline to be tested through the sealed joint, and after the air pressure in the pipeline to be tested is stable, close the sealed joint and measure the air pressure in the pipeline to be tested to determine the airtightness of the pipeline to be tested .

The beneficial effect of the present invention is that the airtightness detection device of the HVAC pipeline of the building construction of the present invention can effectively solve the problem that the traditional HVAC pipeline airtightness detection device has a relatively simple structure during use and cannot conveniently detect the pipeline. The position limit, the problem that the batch detection function cannot be realized, the air tightness detection device of the building HVAC pipeline of the present invention can conveniently clamp and position the pipeline, ensure the stability of the pipeline, and at the same time realize the purpose of automatic feeding, and improve the quality of the pipeline. Air tightness detection efficiency.

Description of drawings

Other characteristics, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic structural view of an air-tightness detection device for heating and ventilation pipes in a house building according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of the air-tightness detection device for the heating and ventilation pipes of the house building according to the embodiment of the present invention.

Fig. 3 is a schematic structural view of a clamping member according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a guide sleeve according to an embodiment of the present invention.

Detailed ways

The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

Referring to Fig. 1 to Fig. 4, the present invention provides a device for detecting air tightness of heating and ventilation pipes in a building, including: a base 1, an air pump 2, a sealing joint 3, a platform 4 and a driving structure.

In this embodiment, the base is in the shape of a cuboid. The base has two opposite ends in its length direction. Specifically, one end of the base 1 is installed with a housing box 11 , and the other end of the base 1 is formed with a first sliding slot.

The air pump 2 is arranged in the containing box 11 . A laminate 12 is movably arranged in the accommodation box 11 . Laminates can move up and down in the vertical direction. The air pump 2 is installed on the laminate 12 . Two guiding sleeves 13 are vertically provided on the bottom of the housing box 11 . Two guide sleeves 13 are disposed below opposite ends of the laminate 12 , and support rods 14 are slidably disposed in the guide sleeves 13 . The support rod 14 is connected to the bottom of the guide sleeve 13 through the elastic member 15 . In this embodiment, the elastic member is a coil spring. The support rod 14 is connected to the laminate 12 . A damper 16 is connected between the laminate 12 and the bottom of the storage box 11 .

The sealing joint 3 is used for sealingly connecting the pipeline to be tested so that the air pump can inflate the pipeline to be tested through the sealing joint 3 . The sealing joint 3 is installed on the outside of the storage box 11 . The sealing joint 3 is connected to the air pump 2 through a hose. A gas delivery channel is formed in the sealing joint, and a valve is installed on the gas delivery channel. A barometer is installed on the sealing joint. The barometer is arranged at one end of the air delivery hole away from the air pump.

The platform is rectangular. The platform is arranged along the length direction of the base. The platform has both ends in its lengthwise direction. A slider 41 is formed on the bottom of the platform 4 . The sliding block 41 is slidably disposed in the first sliding groove. One end of the platform 4 is fixedly mounted with a clamping piece 42 . The other end of the platform 4 is adjustablely mounted with a clamping member 42 .

The driving structure is installed on the base 1 . After the clamping member 42 is clamped on the pipeline to be tested, the driving structure drives the support platform 4 so that one end of the pipeline to be tested is tightly connected to the sealing joint 3 .

In this embodiment, a reaction force frame is formed at the end of the platform away from the containing box. The reaction frame is equipped with a seal. When performing an air tightness test on the pipeline to be tested, the pipeline to be tested is hoisted to the clamping piece of the platform, the clamping piece is clamped to the pipeline to be tested, and one end of the pipeline to be tested is aligned with the seal on the reaction frame, The other end of the pipe to be tested is aligned with the sealing joint. The driving structure drives the bearing platform to move towards the containing box, so that the sealing joint is sealed and connected to the other end of the pipeline to be tested. Under the continuous action of the driving structure, the bearing platform continues to move towards the storage box, and the pipe to be tested moves in the clamping piece, so that the seal on the reaction force frame is inserted into one end of the pipe to be tested in a sealed manner, thereby making the pipe to be tested Form a sealed space. The air pump inflates the inner cavity of the pipeline to be tested through the sealing joint until the air pressure is stable. Close the valve of the sealing joint, and observe the air pressure value in the pipeline to be tested through the barometer. If the air pressure does not decrease, it means that the airtightness of the pipeline to be tested is qualified. If the air pressure decreases, it means that the airtightness of the pipeline to be tested is unqualified. .

As a preferred embodiment, an installation space is formed inside the base 1 . The top of the installation space communicates with the first chute. A guide rod 17 arranged along the length direction of the first chute is installed in the first chute. The slider 41 is provided with perforations. The guide rod 17 is movably disposed in the through hole. Specifically, referring to FIG. 2 , the driving structure includes: a motor 51 , a screw 52 and a threaded sleeve 53 .

Wherein, the screw rod 52 is rotatably installed in the installation hole. The screw rod 52 is arranged in the same direction as the guide rod 17 . The threaded sleeve 53 is connected to the platform 4 . The threaded sleeve 53 is screwed to the screw rod 52 . The motor 51 is installed on the base 1 . The motor 51 is connected to the screw rod 52 through transmission. The motor 51 is connected to the screw rod 52 through a belt drive.

In this embodiment, the motor is installed on the upper part of the base, and a through hole is opened on the top of the base, and the output shaft of the motor and the end of the screw rod are coaxially installed with pulleys. The belt is fixed on the two pulleys. Driven by the motor, the screw is driven by the belt to rotate.

Continuing to refer to FIG. 3 , the clamping member 42 includes: a supporting plate 420 , a push rod 422 , and a clamping plate 423 .

The supporting plate 420 is installed on the platform 4 . Ear plates 421 are respectively formed on opposite sides of the supporting plate 420 . The ear plate 421 is provided with threaded holes. The push rod 422 is formed with external threads. The push rod 422 is screwed into the threaded hole. One end of the push rod 422 extends to opposite sides of the two ear plates 421 . The splint 423 is connected to one end of the push rod 422 . A clamping space for clamping the pipeline to be tested is formed between the clamping plates 423 on the two push rods 422 .

As a preferred implementation manner, the splint 423 is laid with a protective cushion.

The top of the platform 4 is provided with a second chute. Rollers are installed on the bottom of the supporting plate 420 of a clamping member 42 . The roller slides are arranged in the second chute.

In some embodiments, the pallet is fitted with support air cells. The supporting airbag is supported on the pipeline to be tested.

The invention provides a construction method of an air-tightness detection device for a building HVAC pipeline, comprising the following steps:

S1: Lift the pipeline to be tested to the top of the platform 4 so that the clamping parts 42 at both ends of the platform 4 are clamped on both ends of the pipeline to be tested, so that one end of the pipeline to be tested is aligned with the sealing joint 3 .

S2: closing the other end of the pipeline to be tested.

S3: The driving structure drives the platform 4 so that one end of the pipeline to be tested is connected to the sealing joint 3 in a sealed manner.

S4: The air pump 2 inflates air into the pipeline to be tested through the sealing joint 3. After the air pressure in the pipeline to be tested is stable, close the sealing joint 3 and measure the air pressure in the pipeline to be tested to determine the airtightness of the pipeline to be tested.

The air-tightness detection device of the heating and ventilation pipes of the house building of the present invention can effectively solve the problem that the air-tightness detection device of the traditional heating and ventilation pipes has a relatively simple structure during use, and cannot conveniently limit the position of the pipes, and cannot realize batch detection. In terms of function, the airtightness detection device of the building HVAC pipeline of the present invention can conveniently clamp and position the pipeline, ensure the stability of the pipeline, and at the same time realize the purpose of automatic feeding and improve the detection efficiency of the pipeline airtightness.

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, but should also cover the technical solution formed by the above-mentioned technical features without departing from the inventive concept. Other technical solutions formed by any combination of or equivalent features thereof. For example, a technical solution formed by replacing the above-mentioned features with technical features with similar functions disclosed in (but not limited to) this application.

Claims (7)

1. A device for detecting the airtightness of a building heating and ventilation pipeline, characterized in that it comprises: a base, a housing box is installed at one end of the base, and a first chute is formed at the other end of the base; The air pump arranged in the storage box, the storage box is movably provided with a laminate, the air pump is installed on the laminate, and the bottom of the storage box is vertically provided with two guide sleeves , the two guide sleeves are arranged below the opposite ends of the laminate, a support rod is slidably provided in the guide sleeve, and the support rod is connected to the bottom of the guide sleeve through an elastic member, so The support rod is connected to the laminate, and a damper is connected between the laminate and the bottom of the storage box; A sealing joint for sealingly connecting the pipeline to be tested is installed on the outside of the storage box, and the sealing joint is connected to the air pump through a hose; Bearing platform, the bottom of the bearing platform is formed with a slider, the slider is slidably arranged in the first chute, one end of the bearing platform is fixedly installed with a clamping piece, and the other end of the bearing platform can be positioned at The clamping piece is installed on the ground; The driving structure is installed on the base, and after the clamping member is clamped on the pipe to be tested, the driving structure drives the platform so that one end of the pipe to be tested is sealed and connected to the sealing joint . 2. The air-tightness detection device for heating and ventilation pipes in building construction according to claim 1, wherein an installation space is formed in the base, and the top of the installation space communicates with the first chute, the A guide rod arranged along the length direction of the first chute is installed in the first chute, the slider is provided with a perforation, the guide rod is movably inserted in the perforation, and the driving structure includes : A screw rod is rotatably installed in the installation hole, and the screw rod is arranged in the same direction as the guide rod; A threaded sleeve, connected to the cap, and the threaded sleeve is screwed to the screw; The motor installed on the base is connected to the screw by transmission. 3 . The airtightness detection device for heating and ventilation pipes in building construction according to claim 2 , wherein the motor is connected to the screw rod through a belt drive. 4 . 4. The air-tightness detection device for heating and ventilation pipes in building construction according to claim 1, wherein the clamping member comprises: The supporting plate is installed on the cap, the opposite sides of the supporting plate are respectively formed with ear plates, and the ear plates are provided with threaded holes; A push rod, the push rod is formed with external threads, the push rod is screwed into the threaded hole, and one end of the push rod extends to the opposite sides of the two ear plates; The clamping plate is connected to one end of the push rod, and a clamping space for clamping the pipeline to be tested is formed between the clamping plates on the two push rods. 5 . The airtightness detection device for heating and ventilation pipes in house construction according to claim 4 , wherein a protective cushion is laid on the splint. 6 . 6. The air-tightness detection device for heating and ventilation pipes in building construction according to claim 4, wherein a second chute is provided on the top of the cap, and a roller is installed on the bottom of the supporting plate of the clamping piece. , the rollers are slidably disposed in the second chute. 7. A construction method of the air-tightness detection device for heating and ventilation ducts in house construction as described in any one of claims 1 to 6, characterized in that it comprises the following steps: hoisting the pipeline to be tested to the top of the platform so that the clamping parts at both ends of the platform are clamped to the two ends of the pipeline to be tested, so that one end of the pipeline to be tested is aligned with the sealing joint; closing the other end of the pipeline to be tested; The driving structure drives the bearing platform so that one end of the pipeline to be tested is in sealing connection with the sealing joint; The air pump inflates the pipeline to be tested through the sealed joint, and after the air pressure in the pipeline to be tested is stable, close the sealed joint and measure the air pressure in the pipeline to be tested to determine the airtightness of the pipeline to be tested .

Images