Heating and ventilation pipeline interface leakage-proof test equipment

Abstract

The utility model discloses a heating and ventilation pipeline interface leakage-proof test device, which comprises an operation table, a movable frame fixedly arranged on the left side of the lower part of the operation table, and a limiting mechanism arranged above the operation table, wherein the limiting mechanism comprises a placing frame, a pipeline body, a clamping plate, a limiting block, a moving block, a fixing shaft, a fixing plate, a rotating plate and a first electric telescopic rod, the placing frame is fixedly installed above the operation table, and the clamping plate is connected to the front side of the upper portion of the placing frame in a clamping mode. According to the leakage-proof testing equipment for the heating and ventilation pipeline connector, the position of a pipeline can be fixed through the limiting mechanism, so that the pipeline detection precision can be improved, meanwhile, the rapid drainage mechanism is arranged, water after testing can be rapidly drained out of the pipeline, the testing efficiency can be greatly improved, and in addition, the water recycling mechanism is arranged, so that the testing efficiency is improved. And the tested water can be recycled, so that the waste of water resources can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of pipe joint leakage prevention technology, specifically a leak prevention testing device for HVAC pipe joints. Background Technology

[0002] HVAC ducts refer to the pipes used in heating, ventilation, and air conditioning systems within buildings. HVAC ducts have a very wide range of applications, such as supply and return air ducts for purification systems, ventilation ducts for central air conditioning systems, supply and exhaust air ducts for industrial systems, and intake and exhaust air ducts for environmental protection systems. In order to ensure the normal operation of the system and prevent water waste, leak-proof tests are conducted on the pipe joints before they are put into use. Currently, there are various leak-proof testing devices for HVAC duct joints available on the market, but some shortcomings still exist.

[0003] Existing HVAC duct joint leak testing equipment suffers from problems such as the inability to secure the duct joints during testing, which can affect the test results. For example, Chinese Utility Model Patent CN210035096U discloses an HVAC duct leak testing device, including a housing, cover, shoulder strap, testing device, partition plate, battery pack, handle, and control panel. The housing, shoulder strap, and handle of this utility model facilitate the movement of the equipment, making it small, lightweight, and flexible, saving service personnel significant physical effort during on-site service. The testing device uses two pressure gauges for pressure comparison to ensure accurate analysis of duct test data, preventing the loss of true pressure information in the event of a single gauge malfunction. The pressure testing mechanism can use water or air as a medium to pressure the HVAC ducts, offering dual functionality and effectively improving equipment utilization. The one-way valve ensures effective pressure testing, improving work efficiency and testing results. However, this device tests by pouring water into the pipe, but the water cannot be drained quickly after the test, which affects the efficiency of the test. In addition, the water cannot be recycled after the test, which has limitations in its design. Therefore, we propose a leak-proof testing device for HVAC pipe joints to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a leak-proof testing device for HVAC pipe joints, in order to solve the problems of the existing leak-proof testing devices for HVAC pipe joints mentioned in the background art. When testing the sealing performance of pipe joints, the position of the pipe will shift, which will affect the accuracy of the pipe joint test. At the same time, when water is introduced into the pipe to test the sealing performance of the joint, the water cannot be quickly discharged after testing, which will affect the efficiency of subsequent tests. In addition, the water after testing cannot be recycled, which will lead to the waste of water resources.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof testing device for HVAC pipe joints, comprising:

[0006] The control panel has a movable frame fixedly installed on its lower left side;

[0007] Also includes:

[0008] A limiting mechanism is provided above the operating table. The limiting mechanism includes a placement frame, a pipe body, a locking plate, a limiting block, a moving block, a fixed shaft, a fixed plate, a rotating plate, and a first electric telescopic rod. A placement frame is fixedly installed above the operating table, and a locking plate is engaged with the front side of the upper part of the placement frame. The pipe body is placed inside the placement frame, and limiting blocks are symmetrically arranged on the left and right sides of the rear side of the pipe body.

[0009] A rapid drainage mechanism is provided below the operating platform. The rapid drainage mechanism includes a first support leg, a second support leg, a motor, a movable frame, a connecting rod, a first rotating rod, a second rotating rod, and a support base. The movable frame is slidably installed on the inner side of the second support leg, and the second support leg is located at the lower left of the operating platform. The first support leg is rotatably installed at the lower right of the operating platform, and the connecting rod is fixedly installed on the lower inner side of the movable frame.

[0010] Preferably, the front side of the placement rack is symmetrically and rotatably equipped with limit rods, and the upper part of the limit rods is fixedly connected to the locking plate by bolts.

[0011] Preferably, a movable block is fixedly installed on the upper rear side of the limiting block, and a fixed shaft is slidably installed inside the movable block, and a fixed plate is fixedly connected to the rear side of the fixed shaft.

[0012] Preferably, a rotating plate is connected to the upper outer side of the movable block, and the rotating plate is rotatably connected to the upper left and right sides of the fixed plate, and a first electric telescopic rod is fixedly connected to the outer side of the rotating plate.

[0013] Preferably, locking discs are symmetrically arranged on the outer side of the pipe body, and a second telescopic rod is fixedly installed on the upper outer side of the locking disc, and the second telescopic rod is fixedly connected to the upper left and right sides of the operating table.

[0014] Preferably, a water pipe is fixedly connected to the left side of the locking disc, a water pump is provided in the middle of the water pipe, a first water tank is connected to the lower left side of the water pipe, and a second water tank is fixedly connected to the right side of the water pipe.

[0015] Preferably, a first rotating rod is rotatably connected to the lower part of the connecting rod, and a second rotating rod is connected to the inner side of the first rotating rod. The rotation of the second rotating rod is set inside the support base, and a motor is connected to the right end of the second rotating rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the HVAC pipe interface leak prevention testing equipment can fix the position of the pipe by setting a limiting mechanism, thereby improving the accuracy of pipe testing. At the same time, it is equipped with a rapid drainage mechanism, which can quickly discharge the tested water from the inside of the pipe, thereby greatly improving the testing efficiency. In addition, it is equipped with a water recycling mechanism, which can recycle the tested water and effectively avoid the waste of water resources.

[0017] 1. The device is equipped with an operating platform, a placement rack, a locking plate, and a limiting rod. The placement rack is installed above the operating platform, and a locking plate is installed on the front side of the placement rack. When the pipe body needs to be placed inside the placement rack, the limiting rod is symmetrically fixed to the front side of the locking plate by bolts. The lower part of the limiting rod is rotatably connected to the placement rack. The bolts fixing the limiting rod and the locking plate can be removed, and then the limiting rod can be rotated to separate it from the locking plate. At this time, the locking plate can be removed from the top, and the pipe body can be placed inside the placement rack. Then the locking plate can be reinstalled back on the front side of the placement rack.

[0018] 2. A limit block, a movable block, a fixed shaft, and a fixed plate are provided. Limit blocks are symmetrically arranged on the left and right sides of the rear side of the pipe body, and the rear side of the limit blocks is fixedly connected to the movable block. At the same time, the fixed shaft is slidably connected to the upper interior of the movable block, and the fixed plate is fixedly connected to the rear side of the fixed shaft for support. In addition, a rotating plate is connected to the upper outer side of the movable block, and the rotating plate is rotatably connected to the upper left and right sides of the fixed plate. Then, a first electric telescopic rod is fixedly connected to the outer side of the rotating plate. The output end of the first electric telescopic rod can move downward, which will cause the rotating plate to rotate. When the rotating plate rotates, it will push the connected movable block to move forward. When the movable block moves, it will cause the fixedly connected limit block to move forward together. The limit block can fit against the pipe body, pushing the pipe body to fit tightly against the locking plate, thereby limiting the position of the pipe body.

[0019] 3. Equipped with a locking disc, a second telescopic rod, a water pipe, and a water pump, the second telescopic rod can be opened after the pipe body is fixed in position. The output end of the second telescopic rod can push the connected locking disc to move inward. Since the locking disc is symmetrically set on the outside of the pipe body, the locking disc will engage with the left and right sides of the pipe body when it moves inward. The water pipe is fixedly connected to the left side of the locking disc and is connected to the first water tank. The water pump set above the first water tank can then be turned on. The water pump can draw water from the first water tank into the water pipe and then into the inside of the pipe body, allowing for observation of whether there is any leakage at the joint of the pipe body.

[0020] 4. The system is equipped with a first support leg, a second support leg, a movable frame, and a connecting rod. After the pipe body is tested, the first support leg is rotatably connected to the lower right of the operating platform, while the second support leg is located on the lower left. The movable frame is slidably installed inside the second support leg, and its upper side is fixedly connected to the operating platform. When the motor is turned on, the second rotating rod rotates inside the support base. When the second rotating rod rotates, the connected first rotating rod rotates as well. Since the upper part of the first rotating rod is connected to the lower middle part of the connecting rod, when the first and second rotating rods rotate, they can push the connecting rod to move upward. At this time, the movable frame installed above the connecting rod will push the left side of the operating platform to move upward, and the right side of the operating platform will rotate and connect with the first support leg, allowing the operating platform to be placed in a slope position. Then, the second telescopic rod on the right side of the pipe body is opened. The output end of the second telescopic rod can pull the locking plate to move to the right, causing the locking plate to disengage from the right side of the pipe body. At this time, water can flow out from the inside of the pipe body and enter the inside of the second water tank.

[0021] 5. It is equipped with a second water tank, a first water tank, a water pump, and a water pipe. After water enters the second water tank through the pipe body, the first water tank is fixedly connected to the rear of the second water tank through the water pipe. The water pump is installed in the middle of the water pipe. The water pump can be turned on to pump the water in the second water tank into the first water tank through the water pipe, so that it can be recycled. Attached Figure Description

[0022] Figure 1 This is a perspective structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the fixed plate, rotating plate, and first electric telescopic rod of this utility model;

[0024] Figure 3 This is a perspective view of the disassembly structure of the limiting rod of this utility model;

[0025] Figure 4 This is a perspective view of the connection structure between the first electric telescopic rod, the locking disc, and the second telescopic rod of this utility model.

[0026] Figure 5 This is a perspective view of the connection structure of the moving block, fixed shaft, and fixed plate of this utility model;

[0027] Figure 6 This is a perspective view of the connection structure of the first rotating rod, the second rotating rod, and the support base of this utility model.

[0028] In the diagram: 1. Operating table; 2. Placement rack; 3. Pipe body; 4. Clamping plate; 5. Limiting rod; 6. Limiting block; 7. Moving block; 8. Fixed shaft; 9. Fixed plate; 10. Rotating plate; 11. First electric telescopic rod; 12. Clamping disc; 13. Second telescopic rod; 14. Water pipe; 15. Water pump; 16. First water tank; 17. Second water tank; 18. First support leg; 19. Second support leg; 20. Motor; 21. Moving frame; 22. Connecting rod; 23. First rotating rod; 24. Second rotating rod; 25. Support base. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-6 This utility model provides a technical solution:

[0031] Example 1: To address the problems existing in the prior art, this example provides the following technical solution: a leak-proof testing device for HVAC pipe interfaces, comprising an operating platform 1; a limiting mechanism, positioned above the operating platform 1, which can fix the pipe body 3 to be tested, thereby improving testing accuracy; a rapid drainage mechanism, positioned below the operating platform 1, which allows the operating platform 1 to rotate to a ramp position, allowing the test water inside the pipe body 3 to be quickly discharged; and a water recycling mechanism, positioned below and outside the operating platform 1, which allows the tested water to be recycled, effectively avoiding water waste. First, the bolts fixing the limiting rod 5 and the locking plate 4 can be removed. Since the limiting rod 5 and the mounting bracket 2 are rotatably connected, after the bolts are removed... The rotatable limiting rod 5 can be disengaged from the engaging locking plate 4. Since the locking plate 4 is engaged with the placement frame 2, the locking plate 4 can be removed from the top of the placement frame 2. Then, the pipe body 3 can be placed on top of the placement frame 2. After the placement frame 2 is placed, the locking plate 4 can be reinstalled on the top of the placement frame 2. At this time, the first electric telescopic rod 11 installed on the left and right sides above the fixed plate 9 can be opened, that is, the output end of the first electric telescopic rod 11 can be moved downward, which can cause the connected rotating plate 10 and the fixed plate 9 to rotate. The lower side of the rotating plate 10 is fixedly connected to the moving block 7. That is, when the rotating plate 10 rotates forward, it can push the connected moving block 7 to move forward. Since the limiting block 6 is fixedly installed below the moving block 7, The limiting blocks 6 are symmetrically arranged on the rear side of the pipe body 3. That is, when the moving block 7 moves forward, the limiting blocks 6 can also move forward, and the limiting blocks 6 will fit tightly against the front of the pipe body 3. This will push the pipe body 3 to fit against the front locking plate 4, thus fixing the position of the pipe body 3. After the pipe body 3 is fixed, the second telescopic rod 13 can be opened. The output end of the second telescopic rod 13 can push the connected locking plate 12 to move inward. Since the locking plate 12 is set on the left and right sides of the outside of the pipe body 3, when the locking plate 12 moves inward, it can lock and connect with the left and right sides of the pipe body 3. Since the left side of the locking plate 12 is fixedly connected to the water pipe 14, the opening above the first water tank 16 can be opened. Water pump 15 draws water from the first water tank 16 into the water pipe 14, which then transports the water to the pipe body 3. The leaks at the pipe body 3's joints can be observed to determine the sealing performance. After the pipe body 3 is tested, motor 20 is turned on, causing the connected second rotating rod 24 to rotate. The first rotating rod 23 is connected to the outside of the second rotating rod 24, meaning it rotates along with the first rotating rod 23. A connecting rod 22 is connected above the first rotating rod 23 and is installed inside the movable frame 21, which is located inside the second support leg 19. The upper part of the movable frame 21 is fixedly connected to the lower left of the operating table 1.When the first rotating rod 23 and the second rotating rod 24 rotate, they push the connecting rod 22 upwards. The movable frame 21 installed on the outside of the connecting rod 22 then pushes the left side of the connected operating platform 1 upwards. Since the lower right side of the operating platform 1 is rotatably connected to the first support leg 18, when the lower left side of the operating platform 1 moves upwards, the lower right side of the operating platform 1 will also rotatably connect to the first support leg 18, resulting in the operating platform 1 being placed at an angle. At this time, the second telescopic rod 13 connected to the locking disc 12 on the right side of the pipe body 3 can be opened, allowing the locking disc 12 to move to the right and disengage from the right side of the pipe body 3. Water being tested inside the pipe body 3 can then enter the second water tank 17. Since the rear side of the second water tank 17 is connected to the first water tank 16 by a water pipe 14, the water pump 15 located in the middle of the water pipe 14 can be turned on to transfer water from the second water tank 17 to the first water tank 16 for recycling.

[0032] Existing leak-proof testing equipment, when performing sealing tests on pipe joints, can cause pipe position shifts, affecting the accuracy of the pipe joint test. Therefore, this embodiment addresses this issue with the following technical solution: Figure 3 , Figure 5 and Figure 6 As shown, the limiting mechanism includes a placement rack 2 mounted above the operating table 1. The pipe body 3 is placed inside the placement rack 2. Limiting blocks 6 are symmetrically arranged on the left and right sides of the rear of the pipe body 3. The rear side of the limiting blocks 6 is fixedly connected to the moving blocks 7. At the same time, a fixed shaft 8 is slidably connected to the upper interior of the moving blocks 7. A fixed plate 9 is fixedly connected to the rear side of the fixed shaft 8 for support. In addition, a rotating plate 10 is connected to the upper outer side of the moving blocks 7. The rotating plate 10 is rotatably connected to the upper left and right sides of the fixed plate 9. The outer side of the moving plate 10 is fixedly connected to the first electric telescopic rod 11, which can be opened. The output end of the first electric telescopic rod 11 can move downward, causing the rotating plate 10 to rotate. When the rotating plate 10 rotates, it pushes the connected moving block 7 to move forward. When the moving block 7 moves, it causes the fixedly connected limiting block 6 to move forward as well. The limiting block 6 can fit against the pipe body 3, pushing the pipe body 3 to fit tightly against the locking plate 4, thereby limiting the position of the pipe body 3.

[0033] Example 2: Existing leak-proof testing equipment tests the sealing performance of pipe joints by introducing water into the pipe. However, the water cannot be quickly drained after testing, affecting the efficiency of subsequent tests. Therefore, this example uses the following technical solution: Figure 1 , Figure 2 and Figure 6As shown, the rapid drainage mechanism includes a first support leg 18 rotatably connected to the lower right side of the operating platform 1, and a second support leg 19 located at the lower left side of the operating platform 1. A movable frame 21 is slidably mounted inside the second support leg 19, and the upper side of the movable frame 21 is fixedly connected to the operating platform 1. At this time, the motor 20 connected to the right end of the second rotating rod 24 can be turned on. The motor 20 allows the second rotating rod 24 to rotate inside the support base 25. When the second rotating rod 24 rotates, the connected first rotating rod 23 rotates together. Since the upper part of the first rotating rod 23 is connected to the lower middle part of the connecting rod 22, i.e. When the first rotating rod 23 and the second rotating rod 24 rotate, they can push the connecting rod 22 to move upward. At this time, the movable frame 21 installed above the connecting rod 22 will push the left side of the operating table 1 to move upward, and the right side of the operating table 1 will be rotatably connected to the first support leg 18, so that the operating table 1 can be moved to a slope position. At this time, the second telescopic rod 13 set on the right side of the pipe body 3 can be opened. The output end of the second telescopic rod 13 can pull the locking plate 12 to move to the right, so that the locking plate 12 is disengaged from the right side of the pipe body 3. At this time, water can flow out from the inside of the pipe body 3 and enter the inside of the second water tank 17.

[0034] Example 3: Existing leak-proof testing equipment cannot recycle the water used in the test, leading to water waste and other problems. Therefore, this example addresses this issue through the following technical solution: Figure 3 , Figure 4 and Figure 6 As shown, the water recycling mechanism includes a second water tank 17 located on the right side of the operating table 1. After water enters the second water tank 17 through the pipe body 3, the rear side of the second water tank 17 is fixedly connected to the first water tank 16 through a water pipe 14. A water pump 15 is installed in the middle of the water pipe 14. The water pump 15 can be turned on to pump the water in the second water tank 17 into the first water tank 16 through the water pipe 14, thus enabling recycling.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A leak-proof testing device for HVAC pipe joints, comprising: The operating table (1) has a movable frame (21) fixedly installed on the lower left side of the operating table (1). Its characteristic is that it further includes: The operating table (1) is provided with a limiting mechanism above it. The limiting mechanism includes a placement frame (2), a pipe body (3), a locking plate (4), a limiting block (6), a moving block (7), a fixed shaft (8), a fixed plate (9), a rotating plate (10), and a first electric telescopic rod (11). The placement frame (2) is fixedly installed above the operating table (1), and the locking plate (4) is locked to the front side of the upper part of the placement frame (2). The pipe body (3) is placed inside the placement frame (2), and the limiting blocks (6) are symmetrically arranged on the left and right sides of the rear side of the pipe body (3). A rapid drainage mechanism is provided below the operating table (1), which includes a first support leg (18), a second support leg (19), a motor (20), a movable frame (21), a connecting rod (22), a first rotating rod (23), a second rotating rod (24), and a support base (25). The movable frame (21) is slidably installed on the inner side of the second support leg (19), and the second support leg (19) is located on the lower left of the operating table (1). The first support leg (18) is rotatably installed on the lower right of the operating table (1), and the connecting rod (22) is fixedly installed on the lower inner side of the movable frame (21).

2. The HVAC pipe joint leak prevention testing equipment according to claim 1, characterized in that: The front side of the placement rack (2) is symmetrically rotated with a limit rod (5), and the upper part of the limit rod (5) is fixedly connected to the locking plate (4) by bolts.

3. The HVAC pipe joint leak prevention testing equipment according to claim 1, characterized in that: A movable block (7) is fixedly installed on the upper rear side of the limiting block (6), and a fixed shaft (8) is slidably installed inside the movable block (7), and a fixed plate (9) is fixedly connected to the rear side of the fixed shaft (8).

4. The HVAC pipe joint leak prevention testing equipment according to claim 3, characterized in that: The upper outer side of the movable block (7) is connected to a rotating plate (10), and the rotating plate (10) is rotatably connected to the upper left and right sides of the fixed plate (9), and the outer side of the rotating plate (10) is fixedly connected to a first electric telescopic rod (11).

5. The HVAC pipe joint leak prevention testing device according to claim 1, characterized in that: The outer side of the pipe body (3) is symmetrically provided with locking discs (12), and a second telescopic rod (13) is fixedly installed on the upper outer side of the locking discs (12), and the second telescopic rod (13) is fixedly connected to the upper left and right sides of the operating table (1).

6. The HVAC pipe joint leak prevention testing equipment according to claim 5, characterized in that: A water pipe (14) is fixedly connected to the left side of the card plate (12), and a water pump (15) is provided in the middle of the water pipe (14). A first water tank (16) is connected to the lower left side of the water pipe (14), and a second water tank (17) is fixedly connected to the right side of the water pipe (14).

7. The HVAC pipe joint leak prevention testing device according to claim 1, characterized in that: The connecting rod (22) is rotatably connected to a first rotating rod (23), and the inner side of the first rotating rod (23) is connected to a second rotating rod (24). The rotation of the second rotating rod (24) is set inside the support base (25), and the right end of the second rotating rod (24) is connected to a motor (20).

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