Leak detection device for heating and ventilation hard pipe fitting
By designing the HVAC hard pipe leak detection device with frame, handheld rod and lifting mechanism, the arm pain caused by the weight of the detection head is solved, and efficient and stable pipeline leak detection is achieved.
Patent Information
- Application Number
- CN202422389947.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The detection head of the existing HVAC hard pipe fitting leak detection device is too heavy, causing the arms of the leak detector to be sore and reduce the leakage detection efficiency.
A leak detection device including a frame, a handheld rod, a lifting mechanism and a limit hole is designed. The frame is driven to drive the detection head through the handheld rod, and the lifting mechanism assists the lifting of the detection head, reducing the soreness of the arms lifting for a long time, and ensuring that the detection head is stable and fits the ground through the limit hole guidance.
It slows down the pain in the arms, improves the leakage detection efficiency, ensures the stable movement of the detection head, and improves the accuracy and efficiency of the detection.
Smart Images
Figure CN223282919U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of pipeline leak detection, and more specifically, to a leak detection device for HVAC rigid pipes. Background Art
[0002] Leak detection of HVAC rigid pipe fittings is an important part of ensuring the normal operation of the heating system and saving energy. Currently, underground pipelines mostly use the listening method for leak detection. When the KT-300L leak detector is in use, the detection head is placed in contact with the road surface along the laying direction of the pipeline. The water in the pipeline is ejected from the leak point under pressure, and the noise generated by the impact on the inner wall is transmitted along the pipeline, or along the buried medium to the ground. The leakage noise is amplified by the sensor of the detection head to determine the leakage point. However, during the movement of the detection head, the leak detector needs to lift the detection head to detect leaks at intervals in the pipeline. However, the detection head of the KT-300L leak detector weighs about 7.5KG. This results in the problem of arm soreness caused by the leak detector repeatedly lifting the detection head with his arms during large-scale or long-distance pipeline leak detection, which indirectly reduces the leak detection efficiency.
[0003] In view of this, we propose a leak detection device for HVAC rigid pipes. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] The purpose of this application is to provide a leak detection device for HVAC hard pipes, which solves the technical problems in the above-mentioned background technology and achieves the technical effects of avoiding arm pain and improving leak detection efficiency.
[0006] 2. Technical solution
[0007] The technical solution of the present application provides a leak detection device for HVAC hard pipe fittings, including an underground pipeline leak detector, which includes a detection head and a frame, wherein the frame is provided with a limiting hole adapted for the detection head, a hand-held rod is rotatably provided on one side of the frame, and a lifting mechanism for lifting the detection head is provided between the hand-held rod and the detection head.
[0008] By adopting the above technical solution, the hand-held rod is rotatably set on the frame to increase the flexibility of use, and then the detection head can be raised and lowered in the limiting hole, and the lifting of the detection head is assisted by the lifting mechanism, so that the hand-held rod pushes the frame to drive the detection head to move, thereby alleviating the soreness caused by long-term lifting of the arm, and the lifting of the detection head is assisted by the lifting mechanism, and under the guidance of the limiting hole, the detection head can be more stably fitted to the ground.
[0009] As an optional solution to the technical solution of this application document, the frame includes a vehicle plate and fixed wheels symmetrically fixed on one side of the lower surface of the vehicle plate and universal wheels symmetrically fixed on the other side of the lower surface of the vehicle plate. The limiting holes are opened on the vehicle plate, and a bracket is fixed on one side of the upper surface of the vehicle plate.
[0010] By adopting the above technical solution, the universal wheels are used to guide the travel direction of the frame, the directional wheels and the universal wheels are used to assist the frame in walking, and the rolling form of the frame facilitates the movement of the detection head.
[0011] As an optional solution to the technical solution of this application document, a non-slip sleeve is fixed to one end of the hand-held rod, and a shaft rod rotatably connected to the bracket is fixed to the other end, and a threading hole is axially opened on the hand-held rod.
[0012] By adopting the above technical solution, the shaft is rotatably connected to the bracket, and the hand-held rod can be rotated and adjusted around the shaft, so that when the hand-held rod pushes the frame, the hand-held rod can be used by leak detectors of different heights.
[0013] As an optional solution to the technical solution of this application document, the pulling mechanism includes a gate handle fixed on a hand-held rod and a steel wire rope with one end fixed on the gate handle. The gate handle includes a handle. One end of the steel wire rope is fixed on the detection head, and the other end is fixed on the handle. The steel wire rope is passed through the threading hole and passes through the hand-held rod.
[0014] By adopting the above technical solution, the steel wire rope is passed through the threading hole and out of the hand-held rod to guide the steel wire rope. The detection head pulls the steel wire rope under the action of gravity to separate the handle from the anti-slip sleeve. At this time, the lower surface of the detection head is in contact with the ground. Then, by pinching the handle by hand, the handle moves toward the direction of the anti-slip sleeve. At this time, the steel wire rope is stretched, and the detection head is lifted up and separated from the ground, and then the frame can be moved.
[0015] As an optional solution to the technical solution of this application document, a fixed pulley placed between the limiting hole and the bracket is fixed on the vehicle plate.
[0016] By adopting the above technical solution, the steel wire rope passes around the fixed pulley and is supported by the fixed pulley, so that one end of the steel wire rope is partially in a vertical state, which is convenient for lifting the detection head.
[0017] 3. Beneficial effects
[0018] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:
[0019] 1. This application is rotatably arranged on the frame through a hand-held rod to increase the flexibility of use. Then the detection head can be raised and lowered in the limiting hole, and the lifting of the detection head is assisted by a lifting mechanism. The frame is pushed by the hand-held rod to drive the detection head to move, thereby reducing the soreness caused by long-term lifting of the arm. The lifting of the detection head is assisted by the lifting mechanism, and under the guidance of the limiting hole, the detection head can be more stably fitted to the ground. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the overall structure of a leak detection device for HVAC rigid pipes disclosed in a preferred embodiment of the present application;
[0021] Figure 2 This is a schematic diagram of the overall front structure of a leak detection device for HVAC rigid pipes disclosed in a preferred embodiment of the present application;
[0022] Figure 3 This is a schematic diagram of the frame structure of a leak detection device for HVAC rigid pipes disclosed in a preferred embodiment of the present application;
[0023] Figure 4 This is a schematic diagram of the structure of a handheld rod of a leak detection device for HVAC rigid pipes disclosed in a preferred embodiment of the present application;
[0024] Explanation of the numbers in the figure: 1. Underground pipeline leak detector; 11. Detection head; 2. Frame; 21. Carriage plate; 211. Limit hole; 22. Fixed wheel; 23. Universal wheel; 24. Fixed pulley; 3. Handle; 31. Anti-slip sleeve; 32. Shaft; 33. Threading hole; 34. Bracket; 4. Pulling mechanism; 41. Gate handle; 411. Handle; 42. Wire rope. DETAILED DESCRIPTION
[0025] The present application is further described in detail below with reference to the accompanying drawings.
[0026] A leak detection device for HVAC hard pipes includes an underground pipeline leak detector 1, which includes a detection head 11 and a frame 2. The frame 2 is provided with a limit hole 211 adapted to the detection head 11. A hand-held rod 3 is rotatably provided on one side of the frame 2, and a lifting mechanism 4 for lifting the detection head 11 is provided between the hand-held rod 3 and the detection head 11.
[0027] Reference Figures 1-4, it is rotatably arranged on the frame 2 through the hand-held rod 3 to increase the flexibility of use, and then the detection head 11 can be raised and lowered and arranged in the limiting hole 211, and the lifting mechanism 4 is used to assist in lifting the detection head 11, so that the hand-held rod 3 pushes the frame 2 to drive the detection head 11 to move, thereby alleviating the soreness caused by the long-term lifting of the arm, and the lifting mechanism 4 is used to assist in lifting the detection head 11, and under the guidance of the limiting hole 211, the detection head 11 can be more stably fitted to the ground.
[0028] The frame 2 includes a vehicle plate 21 and fixed wheels 22 symmetrically fixed on one side of the lower surface of the vehicle plate 21 and universal wheels 23 symmetrically fixed on the other side of the lower surface of the vehicle plate 21. The limiting holes 211 are opened on the vehicle plate 21, and a bracket 34 is fixed on one side of the upper surface of the vehicle plate 21.
[0029] Reference Figure 3 The universal wheel 23 is used to guide the travel direction of the frame 2, the directional wheel 22 and the universal wheel 23 are used to assist the frame 2 in walking, and the rolling form of the frame 2 facilitates the movement of the detection head 11.
[0030] An anti-slip sleeve 31 is fixed to one end of the handle bar 3 , and an axle bar 32 rotatably connected to a bracket 34 is fixed to the other end. A threading hole 33 is axially provided on the handle bar 3 .
[0031] Reference Figure 2 and Figure 4 The shaft 32 is rotatably connected to the bracket 34, and the hand-held rod 3 can be rotated and adjusted around the shaft 32, so that when the hand-held rod 3 pushes the frame 2, the hand-held rod 3 can be used by leak detection personnel of different heights.
[0032] The pulling mechanism 4 includes a gate handle 41 fixed on the hand-held rod 3 and a steel wire rope 42 with one end fixed on the gate handle 41. The gate handle 41 includes a handle 411. One end of the steel wire rope 42 is fixed on the detection head 11, and the other end is fixed on the handle 411. The steel wire rope 42 passes through the threading hole 33 and passes through the hand-held rod 3.
[0033] Reference Figure 2 and Figure 4 The steel wire rope 42 passes through the threading hole 33 and comes out from the hand-held rod 3 to guide the steel wire rope 42. The detection head 11 pulls the steel wire rope 42 under the action of gravity to separate the handle 411 from the anti-slip cover 31. At this time, the lower surface of the detection head 11 is in contact with the ground, and then the handle 411 is pinched by hand to make the handle 411 move toward the direction of the anti-slip cover 31. At this time, the steel wire rope 42 is stretched, and the detection head 11 is lifted up and separated from the ground, and then the frame 2 can be moved.
[0034] A fixed pulley 24 is fixed on the vehicle plate 21 and is placed between the limiting hole 211 and the bracket 34 .
[0035] Reference Figure 2 and Figure 3 The steel wire rope 42 passes around the fixed pulley 24 and is supported by the fixed pulley 24 , so that one end of the steel wire rope 42 is partially in a vertical state, so as to facilitate the lifting of the detection head 11 .
[0036] Working principle: The palm of the hand holds the end of the anti-slip sleeve 31 of the hand-held rod 3 to increase the friction coefficient between the palm and the hand-held rod 3 when pushing the frame 2, and the palm of the hand pinches the handle 411 at this time. The wire rope 42 is in a taut state, and under the guidance of the fixed pulley 24, the detection head 11 is lifted upward, and the lower end of the detection head 11 is separated from the ground. The arm pushes the hand-held rod 3 and the frame 2, and the universal wheel 23 is used for steering. Under the action of the universal wheel 23 and the directional wheel 22, the auxiliary detection head 11 moves, and after moving to the detection point, the handle 411 is released. The detection head 11 cones downward under the action of gravity and contacts the ground. The handle 411 is separated from the anti-slip sleeve 31. At this time, the detection point is detected by the detection head 11. The water in the pipeline is ejected from the leak point under the action of pressure. The noise generated by the impact on the inner wall is transmitted along the pipeline, or along the buried medium to the ground. The leakage noise is amplified by the sensor of the detection head 11 to determine the leakage point. The leak detection personnel use headphones and detectors to determine whether there is a leak point.
Claims
1. A leak detection device for HVAC rigid pipes, comprising an underground pipeline leak detector (1), the underground pipeline leak detector (1) comprising a detection head (11), characterized in that: Also includes: A vehicle frame (2) is provided with a limiting hole (211) adapted to a detection head (11), a hand-held rod (3) is rotatably provided on one side of the vehicle frame (2), and a lifting mechanism (4) for lifting the detection head (11) is provided between the hand-held rod (3) and the detection head (11).
2. A leak detection device for HVAC rigid pipes according to claim 1, characterized in that: The vehicle frame (2) comprises a vehicle plate (21), fixed wheels (22) symmetrically fixed on one side of the lower surface of the vehicle plate (21), and universal wheels (23) symmetrically fixed on the other side of the lower surface of the vehicle plate (21); the limiting holes (211) are provided on the vehicle plate (21); and a bracket (34) is fixed on one side of the upper surface of the vehicle plate (21).
3. The leak detection device for HVAC rigid pipes according to claim 2, characterized in that: One end of the hand-held rod (3) is fixed with an anti-slip sleeve (31), and the other end is fixed with a shaft rod (32) rotatably connected to a bracket (34). The hand-held rod (3) is axially provided with a threading hole (33).
4. A leak detection device for HVAC rigid pipes according to claim 3, characterized in that: The lifting mechanism (4) comprises a gate handle (41) fixed on the hand-held rod (3) and a steel wire rope (42) with one end fixed on the gate handle (41); the gate handle (41) comprises a handle (411); one end of the steel wire rope (42) is fixed on the detection head (11), and the other end is fixed on the handle (411); the steel wire rope (42) is passed through the threading hole (33) and then passes through the hand-held rod (3).
5. The leak detection device for HVAC rigid pipes according to claim 2, characterized in that: A fixed pulley (24) is fixed on the vehicle plate (21) and is placed between the limiting hole (211) and the bracket (34).