Heating and ventilation pipeline leakage-proof detection device

Abstract

The utility model discloses a heating and ventilation pipeline leak-proof detection device, which relates to the field of heating and ventilation pipeline detection and comprises a bottom plate and a sleeve ring, an expansion film is arranged in the sleeve ring, a fixed mounting plate and a movable mounting plate are arranged at the top of the bottom plate, an air inlet is formed in the right side of the bottom plate, and an inflation nozzle is connected in the air inlet. Two sets of adjusting plates are arranged on the left side and the right side of the sleeve ring, and each set comprises six adjusting plates. The rotating ring on any one of the left side and the right side of the sleeve ring is rotated, the rotating ring pushes the multiple connecting rods when rotating, the multiple connecting rods pull the multiple adjusting plates, the adjusting plates pull the wedge-shaped blocks, the wedge-shaped blocks slide in the wedge-shaped grooves, the adjusting plate on one side can pull the fixing rods when moving, and therefore the adjusting plate on the other side is pulled; the multiple adjusting plates are adjusted outwards or inwards, adjustment can be conveniently carried out according to the size of the heating and ventilation pipeline to be detected, and therefore heating and ventilation pipelines of different sizes can be detected.

Description

Technical Field

[0001] The utility model relates to the field of HVAC pipeline detection, in particular to a HVAC pipeline leakage prevention detection device. Background Art

[0002] The thickness and specifications of HVAC ducts can be changed according to requirements. Usually, when connecting, both ends of the duct are always connected to accessories. Generally, there are no grooves and sealing rings at both ends of the HVAC duct.

[0003] At present, in order to prevent HVAC pipe leakage from affecting the normal use of HVAC equipment, it is necessary to test the leak-proof performance of HVAC pipes. When testing the leak-proof performance of HVAC pipes, a HVAC pipe leak-proof detection device is proposed in patent publication number CN212254512U. In this patent, the sleeve ring is pulled to move on the HVAC pipe, and the air tightness of the HVAC pipe is tested by using an expansion film. Since the diameters of various types of HVAC pipes are different, this patent can only test pipes of fixed sizes. If HVAC pipes of different sizes need to be tested, sleeve rings of different sizes need to be used, which is more cumbersome.

[0004] Therefore, it is necessary to invent a HVAC pipeline leakage detection device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a HVAC pipeline leakage detection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a HVAC pipeline leakage detection device, comprising a base plate and a sleeve ring, an expansion film is arranged in the sleeve ring, a fixed mounting plate and a movable mounting plate are arranged on the top of the base plate, an air inlet is opened on the right side of the base plate, and an inflation nozzle is connected in the air inlet, two groups of adjustment plates are arranged on the left and right sides of the sleeve ring, each group of the adjustment plates is six, a fixing rod is commonly connected between the two groups of multiple adjustment plates, the multiple adjustment plates are tightly attached to each other, the side walls of the multiple adjustment plates are respectively provided with a rotating ring, the outer side of the rotating ring is connected to a plurality of connecting rods, the other ends of the plurality of connecting rods are respectively connected to the side walls of the plurality of adjustment plates, the side walls of the plurality of adjustment plates are respectively connected to wedge blocks, and the left and right sides of the sleeve ring are provided with a plurality of wedge grooves corresponding to the wedge blocks.

[0007] Preferably, a sealing gasket is disposed on the outer side of each of the plurality of adjustment plates, and the specific material of the sealing gasket is rubber.

[0008] Preferably, two fixing blocks are connected to the left side of the fixed mounting plate, and springs are connected to opposite sides of the two fixing blocks, and the other ends of the springs are connected to arc-shaped clamping plates.

[0009] Preferably, the outer side of the rotating ring is provided with anti-slip grooves.

[0010] Technical effects and advantages of the utility model:

[0011] By rotating the rotating ring on either side of the left or right side of the sleeve ring, the rotating ring pushes multiple connecting rods when rotating, and the multiple connecting rods pull multiple adjustment plates. The adjustment plates pull the wedge blocks, so that the wedge blocks slide in the wedge grooves, and the adjustment plates on one side can pull the fixed rod when moving, thereby pulling the adjustment plates on the other side, and adjusting the multiple adjustment plates outward or inward, which can be conveniently adjusted according to the size of the HVAC pipe to be inspected, so that HVAC pipes of different sizes can be inspected. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the top view of the casing ring of the utility model;

[0014] Figure 3 For this utility model Figure 2 A side view schematic diagram of the structure;

[0015] Figure 4 For this utility model Figure 2 AA section structural diagram;

[0016] Figure 5 For this utility model Figure 1 Schematic diagram of the enlarged structure of part B.

[0017] In the figure: 1, bottom plate; 2, sleeve ring; 3, expansion film; 4, fixed mounting plate; 5, movable mounting plate; 6, inflation nozzle; 7, adjustment plate; 8, fixed rod; 9, rotating ring; 10, connecting rod; 11, wedge block; 12, fixed block; 13, spring; 14, arc clamp. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-5A HVAC pipeline leak detection device shown in the figure comprises a base plate 1 and a sleeve ring 2, an expansion film 3 is arranged in the sleeve ring 2, a fixed mounting plate 4 and a movable mounting plate 5 are arranged on the top of the base plate 1, an air inlet is opened on the right side of the base plate 1, and an inflation nozzle 6 is connected to the air inlet, two groups of adjustment plates 7 are arranged on the left and right sides of the sleeve ring 2, each group of adjustment plates 7 has six adjustment plates, a fixing rod 8 is commonly connected between the two groups of multiple adjustment plates 7, the multiple adjustment plates 7 are tightly attached to each other, the side walls of the multiple adjustment plates 7 are all provided with rotating rings 9, the outer side of the rotating rings 9 is connected to a plurality of connecting rods 10, the other ends of the multiple connecting rods 10 are respectively connected to the side walls of the multiple adjustment plates 7, and the multiple adjustment plates 7 are connected to the outer side of the rotating rings 9. The side walls of the section plates 7 are connected with wedge blocks 11, and the left and right sides of the sleeve ring 2 are provided with multiple wedge grooves corresponding to the wedge blocks 11. By rotating the rotating ring 9 on either side of the left and right sides of the sleeve ring 2, the rotating ring 9 pushes multiple connecting rods 10 when rotating, and the multiple connecting rods 10 pull the multiple adjusting plates 7. The adjusting plates 7 pull the wedge blocks 11, so that the wedge blocks 11 slide in the wedge grooves, and the adjusting plate 7 on one side can pull the fixed rod 8 when moving, thereby pulling the adjusting plate 7 on the other side, and adjusting the multiple adjusting plates 7 outward or inward, which can be conveniently adjusted according to the size of the HVAC pipe to be detected, so that HVAC pipes of different sizes can be detected.

[0020] Sealing pads are arranged on the outer sides of the plurality of adjustment plates 7 , and the specific material of the sealing pads is rubber, which can conveniently improve the sealing performance between the plurality of adjustment plates 7 .

[0021] Two fixed blocks 12 are connected to the left side of the fixed mounting plate 4, and springs 13 are connected to the opposite sides of the two fixed blocks 12. The other end of the spring 13 is connected to an arc-shaped clamping plate 14. By setting the two arc-shaped clamping plates 14, the HVAC pipe is placed between the two arc-shaped clamping plates 14, and the HVAC pipe is clamped by using the spring 13 to push the arc-shaped clamping plate 14.

[0022] The outer side of the rotating ring 9 is provided with anti-skid grooves, and the rotating ring 9 can be rotated better by the anti-skid grooves.

[0023] Working principle of this utility model:

[0024] By rotating the rotating ring 9 on either side of the left or right side of the sleeve ring 2, the rotating ring 9 pushes multiple connecting rods 10 when rotating, and the multiple connecting rods 10 pull the multiple adjusting plates 7, and the adjusting plates 7 pull the wedge blocks 11, so that the wedge blocks 11 slide in the wedge grooves, and the adjusting plates 7 on one side can pull the fixed rod 8 when moving, thereby pulling the adjusting plates 7 on the other side, and adjusting the multiple adjusting plates 7 outward or inward, and the HVAC pipe is placed between the two arc clamps 14 by setting two arc clamps 14, and the HVAC pipe is clamped by using the spring 13 to push the arc clamp 14, and the sleeve ring 2 is put on the HVAC pipe, and the leakage-proof performance of the HVAC pipe can be tested by pulling it left and right.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A HVAC pipeline leak detection device, comprising a bottom plate and a sleeve ring, wherein an expansion film is arranged inside the sleeve ring, a fixed mounting plate and a movable mounting plate are arranged on the top of the bottom plate, an air inlet is opened on the right side of the bottom plate, and an inflation nozzle is connected to the air inlet, characterized in that: Two groups of adjustment plates are arranged on the left and right sides of the sleeve ring, each group of the adjustment plates has six adjustment plates, a fixing rod is commonly connected between the two groups of multiple adjustment plates, the multiple adjustment plates are tightly attached to each other, a rotating ring is arranged on the side walls of the multiple adjustment plates, a multiple connecting rod is connected to the outer side of the rotating ring, the other ends of the multiple connecting rods are respectively connected to the side walls of the multiple adjustment plates, a wedge block is connected to the side walls of the multiple adjustment plates, and a multiple wedge groove corresponding to the wedge block is opened on the left and right sides of the sleeve ring.

2. A HVAC pipeline leakage detection device according to claim 1, characterized in that: A sealing pad is arranged on the outer side of each of the plurality of adjusting plates, and the specific material of the sealing pad is rubber.

3. A HVAC pipeline leakage detection device according to claim 1, characterized in that: The left side of the fixed installation plate is connected to two fixed blocks, and the opposite sides of the two fixed blocks are connected to springs, and the other end of the spring is connected to an arc-shaped clamping plate.

4. A HVAC pipeline leakage detection device according to claim 1, characterized in that: The outer side of the rotating ring is provided with anti-slip grooves.

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