A sealing test device for a radiator

Abstract

The utility model belongs to the field of leakproofness test, concretely relates to a kind of leakproofness testing device for radiator, including radiator copper pipe and adjusting sleeve, the left and right ends of radiator copper pipe are all clamped with sealing plug, the inside fixedly connected with air inlet pipe of right sealing plug, and air inlet pipe is set through sealing plug, the inside of adjusting sleeve is connected with two adjusting rods by screw thread, and the end of two adjusting rods is respectively fixedly connected with two sealing plugs.The utility model sets up an adjusting sleeve, the inside of adjusting sleeve is provided with two adjusting rods and is connected with its screw thread, and the end of adjusting rod is fixed with sealing plug, sealing plug can be respectively inserted into the two ends of radiator copper pipe, and air inlet pipe is set at one of sealing plug, so that by the cooperation of adjusting rod and adjusting sleeve, sealing plug and radiator copper pipe can be prevented from being separated from the pipe opening, and the sealing property of radiator copper pipe is ensured during testing.

Description

Technical Field

[0001] This utility model relates to the field of sealing test technology, specifically a sealing test device for radiators. Background Technology

[0002] In the production process of finned heat sinks, the formed fins and copper tubes need to be assembled and then welded together. Since there are weld points on the copper tubes, weld holes are prone to occur. Therefore, it is necessary to conduct a sealing test on the copper tubes after the fins are welded.

[0003] A search revealed a utility model patent with patent authorization announcement number CN105372021B, which discloses a sealing performance testing device for a heat dissipation tube bundle, including a water tank, a lifting frame, a pressing cylinder, and a tube box frame. A gantry frame is vertically installed at both ends of the water tank, and a lifting screw driven by a motor is installed on each gantry frame. The lower ends of the multiple lifting screws are connected to the side of the lifting frame housed in the water tank. The water tank is filled with water to submerge the tube box and tube bundle fins.

[0004] During the radiator's airtightness test, the two sealing plugs used to seal the copper pipe openings of the radiator can easily become loose from the pipe openings due to inflation, leading to air leakage and affecting the airtightness test. Utility Model Content

[0005] The purpose of this invention is to provide a sealing test device for radiators, which solves the problem that the two sealing plugs used to seal the copper pipe openings of radiators are easily loosened from the pipe openings due to inflation, resulting in air leakage and thus affecting the airtightness test.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing performance testing device for a radiator, comprising a radiator copper tube and an adjusting sleeve. Both ends of the radiator copper tube are fitted with sealing plugs. An air inlet pipe is fixedly connected inside the sealing plug on the right side, and the air inlet pipe passes through the sealing plug. The adjusting sleeve has two adjusting rods connected internally via threads. The ends of the two adjusting rods are fixedly connected to the two sealing plugs respectively. A limiting ring is rotatably connected to the middle of the outer side of the adjusting sleeve. A connecting block is fixedly connected to the bottom of the limiting ring. Guide rods are fixedly connected to both sides of the connecting block. The guide rods pass through the adjusting rods and are slidably connected to them. A lubrication mechanism is provided on the adjusting sleeve.

[0007] Preferably, a limiting block, made of stainless steel, is fixedly connected to the end of the guide rod. The limiting block limits the travel of the adjusting rod.

[0008] Preferably, the lubrication mechanism includes a hollow sleeve fixedly connected to the adjusting sleeve, a hollow pad fixedly connected inside the hollow sleeve, a sponge sleeve placed on the upper end of the hollow pad and slidably connected inside the hollow sleeve, a push rod slidably connected to the top of the hollow sleeve and passing through the hollow sleeve, and a pressure block fixedly connected to the end of the push rod, the pressure block abutting against the sponge sleeve. The lubrication mechanism provides lubrication for the threaded connection between the adjusting rod and the adjusting sleeve.

[0009] Preferably, a connecting rod is fixedly connected to the bottom of the pressure block. The connecting rod passes through the sponge sleeve and is slidably connected to the sponge sleeve. The connecting rod extends through the connecting rod and to the bottom of the hollow pad. A baffle is fixedly connected to the end of the connecting rod, and the baffle abuts against the hollow pad. A through hole is opened inside the hollow pad, and the connecting rod passes through the through hole. The diameter of the through hole is larger than that of the connecting rod, and the baffle at the end of the connecting rod has an auxiliary sealing effect on the through hole.

[0010] Preferably, a button is fixedly connected to the top of the push rod, and the button and the push rod are an integral structural layer. The button facilitates the pushing of the push rod.

[0011] Preferably, a spring is sleeved on the outer side of the push rod, one end of the spring is fixedly connected to the pressure block, and the other end of the spring is fixedly connected to the inner surface of the hollow sleeve. The spring allows elastic force to be applied to the pressure block, thus assisting in its repositioning.

[0012] Preferably, the adjusting sleeve has an oil outlet hole inside, and the oil outlet hole communicates with the hollow sleeve. The oil outlet hole facilitates the addition of lubricating oil to the threaded connection between the adjusting rod and the adjusting sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model features an adjusting sleeve with two threaded adjusting rods inside. Each adjusting rod has a sealing plug at its end. The sealing plugs can be inserted into both ends of the radiator copper tube. An air inlet pipe is located at one of the sealing plugs. By cooperating with the adjusting rods, the sealing plugs can be prevented from detaching from the radiator copper tube opening, thus ensuring that the radiator copper tube is not prone to leakage during the sealing test.

[0015] 2. This utility model provides a lubrication mechanism on the adjusting sleeve. By pushing the push rod with a button, the push rod pushes the pressure block downwards, which in turn squeezes the sponge sleeve and releases the lubricating oil inside the sponge sleeve. This lubricates the threaded connection between the adjusting rod and the adjusting sleeve, allowing the adjusting rod and the adjusting sleeve to be used frequently, thereby meeting the requirements for continuous testing of the radiator copper tubes. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A schematic diagram of a partial structure;

[0018] Figure 3 This utility model Figure 1 A front sectional view;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0020] In the diagram: 1. Radiator copper pipe; 2. Sealing plug; 21. Air inlet pipe; 3. Adjusting sleeve; 4. Adjusting rod; 5. Limiting ring; 6. Connecting block; 7. Guide rod; 8. Limiting block; 9. Lubrication mechanism; 91. Hollow sleeve; 92. Hollow pad; 93. Sponge sleeve; 94. Push rod; 95. Pressure block; 96. Connecting rod; 97. Baffle; 98. Button; 99. Spring; 910. Oil outlet. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-3 A sealing performance testing device for a radiator includes a radiator copper tube 1 and an adjusting sleeve 3. Sealing plugs 2 are snapped into both ends of the radiator copper tube 1. An air inlet pipe 21 is fixedly connected inside the right sealing plug 2, and the air inlet pipe 21 passes through the sealing plug 2. Two adjusting rods 4 are threadedly connected inside the adjusting sleeve 3. The ends of the two adjusting rods 4 are fixedly connected to the two sealing plugs 2 respectively. A limit ring 5 is rotatably connected to the middle of the outer side of the adjusting sleeve 3. A connecting block 6 is fixedly connected to the bottom of the limit ring 5. Guide rods 7 are fixedly connected to both sides of the connecting block 6. The guide rods 7 pass through the adjusting rods 4 and are slidably connected to the adjusting rods 4. A limit block 8, made of stainless steel, is fixedly connected to the end of the guide rod 7. The limit block 8 limits the stroke of the adjusting rods 4.

[0023] Please see Figures 3-4The adjusting sleeve 3 is provided with a lubrication mechanism 9. The lubrication mechanism 9 provides lubrication for the threaded connection between the adjusting rod 4 and the adjusting sleeve 3. The lubrication mechanism 9 includes a hollow sleeve 91 fixedly connected to the adjusting sleeve 3. A hollow pad 92 is fixedly connected inside the hollow sleeve 91. A sponge sleeve 93 is placed on the upper end of the hollow pad 92 and is slidably connected inside the hollow sleeve 91. A push rod 94 is slidably connected to the top of the hollow sleeve 91 and passes through the hollow sleeve 91. A pressure block 95 is fixedly connected to the end of the push rod 94 and abuts against the sponge sleeve 93.

[0024] Please see Figure 4 A connecting rod 96 is fixedly connected to the bottom of the pressure block 95. The connecting rod 96 passes through the sponge sleeve 93 and is slidably connected to the sponge sleeve 93. The connecting rod 96 extends to the bottom of the hollow pad 92. A baffle 97 is fixedly connected to the end of the connecting rod 96, and the baffle 97 abuts against the hollow pad 92. A through hole is opened inside the hollow pad 92. The connecting rod 96 passes through the through hole, and the diameter of the through hole is larger than that of the connecting rod 96. The baffle 97 at the end of the connecting rod 96 has an auxiliary sealing effect on the through hole. A button 98 is fixedly connected to the top of the push rod 94, and the button 98 and the push rod 94 are an integral structural layer. The button 98 facilitates the pushing of the push rod 94. A spring 99 is sleeved on the outside of the push rod 94. One end of the spring 99 is fixedly connected to the pressure block 95, and the other end of the spring 99 is fixedly connected to the inner surface of the hollow sleeve 91. The spring 99 allows the elastic force to be applied to the pressure block 95, providing auxiliary resetting for the pressure block 95. The adjusting sleeve 3 has an oil outlet 910 inside, which communicates with the hollow sleeve 91. The oil outlet 910 facilitates the addition of lubricating oil to the threaded connection between the adjusting rod 4 and the adjusting sleeve 3.

[0025] The specific implementation process of this utility model is as follows: In use, first place the radiator copper tube 1 between the two sealing plugs 2, then rotate the adjusting sleeve 3, and the two adjusting rods 4 move towards each other through the threaded movement between them and the adjusting sleeve 3, and drive their respective sealing plugs 2 to be inserted into the tube opening of the radiator copper tube 1. In this way, the sealing plugs 2 can be tightly connected to the radiator copper tube 1 and are not prone to air leakage. Then, after connecting the air inlet pipe 21 to the air source through the hose, place the whole unit in the water tank, and then you can directly see whether there is air leakage after welding the fins through the radiator copper tube 1. In addition, push the push rod 94 through the button 98, and the push rod 94 pushes the pressure block 95 downward. The pressure block 95 squeezes the sponge sleeve 93 and releases the lubricating oil in the sponge sleeve 93, thereby lubricating the threaded connection between the adjusting rod 4 and the adjusting sleeve 3, so that the adjusting rod 4 and the adjusting sleeve 3 can be used frequently, thereby meeting the continuous testing use of the radiator copper tube 1.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing test device for a radiator, comprising a radiator copper pipe (1) and an adjusting sleeve (3), characterized in that: The left and right ends of the copper tube (1) of the radiator are fitted with sealing plugs (2). The inside of the sealing plug (2) on the right side is fixedly connected to an air inlet pipe (21), and the air inlet pipe (21) passes through the sealing plug (2). The inside of the adjusting sleeve (3) is connected to two adjusting rods (4) by threads. The ends of the two adjusting rods (4) are fixedly connected to the two sealing plugs (2) respectively. The middle of the outer side of the adjusting sleeve (3) is rotatably connected to a limiting ring (5). The bottom of the limiting ring (5) is fixedly connected to a connecting block (6). The left and right sides of the connecting block (6) are fixedly connected to guide rods (7). The guide rods (7) pass through the adjusting rods (4) and are slidably connected to the adjusting rods (4). The adjusting sleeve (3) is provided with a lubrication mechanism (9).

2. The leak test apparatus for a heat sink according to claim 1, wherein: The end of the guide rod (7) is fixedly connected to a limiting block (8), which is made of stainless steel.

3. The leak test apparatus for a heat sink according to claim 1, wherein: The lubrication mechanism (9) includes a hollow sleeve (91) fixedly connected to the adjusting sleeve (3), a hollow pad (92) fixedly connected inside the hollow sleeve (91), a sponge sleeve (93) placed on the upper end of the hollow pad (92), and the sponge sleeve (93) slidably connected inside the hollow sleeve (91). A push rod (94) is slidably connected to the top of the hollow sleeve (91), and the push rod (94) is set through the hollow sleeve (91). A pressure block (95) is fixedly connected to the end of the push rod (94), and the pressure block (95) abuts against the sponge sleeve (93).

4. The leak test apparatus for a heat sink according to claim 3, wherein: The bottom of the pressure block (95) is fixedly connected to a connecting rod (96), the connecting rod (96) passes through the sponge sleeve (93) and is slidably connected to the sponge sleeve (93), the connecting rod (96) extends to the bottom of the hollow pad (92), and the end of the connecting rod (96) is fixedly connected to a baffle (97), the baffle (97) abuts against the hollow pad (92).

5. The sealing performance testing device for a radiator according to claim 3, characterized in that: A button (98) is fixedly connected to the top of the push rod (94), and the button (98) and the push rod (94) are an integral structural layer.

6. The leak test apparatus for a heat sink according to claim 3, wherein: A spring (99) is sleeved on the outside of the push rod (94). One end of the spring (99) is fixedly connected to the pressure block (95), and the other end of the spring (99) is fixedly connected to the inner surface of the hollow sleeve (91).

7. The leak testing apparatus for a heat sink according to claim 3, wherein: The adjusting sleeve (3) has an oil outlet hole (910) inside, and the oil outlet hole (910) is connected to the hollow sleeve (91).

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