Air tightness detection device for automobile intercooler

Abstract

The utility model relates to the technical field of automobile intercoolers, and provides an air tightness detection device for an automobile intercooler, which comprises a counterweight base. The clamping plates are symmetrically and movably connected to the top end of the counterweight base; and a sliding plate extending to the outside of the sliding groove is movably connected into the sliding groove. The fixing plate is fixedly connected to the top end of the sliding plate, and one side of the surface of the communicating pipe is sleeved with a sealing plug; by means of the clamping assembly, the lower ends of the two sides of the automobile intercooler can be clamped and fixed through two clamping plates and a rubber pad, the height of a sealing plug is changed through a sliding fixing plate, the sealing plug can be clamped and fixed through a clamping assembly, the sealing plug can be clamped and fixed, and therefore the sealing plug can be clamped and fixed, and the sealing effect of the automobile intercooler is improved. And the sealing plug can horizontally move again by using the electric telescopic rod, and the sealing performance of the sealing plug and the inner wall of the connecting pipe is further improved by using the through hole and the cavity, so that the air tightness detection operation of different automobile intercoolers can be met.

Description

Technical Field

[0001] This utility model relates to the field of automotive intercooler technology, specifically to an airtightness testing device for automotive intercoolers. Background Technology

[0002] An intercooler is a component used in a car's cooling system. It cools the pressurized air, thereby reducing the engine's intake air temperature. After the intercooler is manufactured, its airtightness needs to be tested to ensure its quality. This is to prevent poor sealing from affecting the car's power after it is installed with the turbocharger and engine.

[0003] A search revealed an existing patent (publication number: CN221898722U) disclosing an airtightness testing device for automotive intercoolers. However, existing intercooler airtightness testing devices rely on clamps to fix the testing mechanism to the intercooler, requiring manual disassembly and installation. This results in complex structure, cumbersome operation, time-consuming and labor-intensive work, and low efficiency. Therefore, this invention proposes a solution comprising a testing platform and testing components. The testing platform houses the intercooler body, and two support plates are fixedly connected to it. Each support plate has a connector fixedly attached to its top. This invention, through the cooperation of its components, not only achieves automatic installation and disassembly of the testing components during the testing process, improving work efficiency, but also enables the testing of intercooler bodies of different sizes and specifications.

[0004] However, in the above scheme, the spacing between the mounting plates is fixed, and the extension distance of the cylinder and the telescopic rod is relatively limited. As a result, when the intercooler itself is large or small, it is not possible to stably perform the clamping and sealing test, which is not conducive to the airtightness test of intercoolers of different sizes and reduces its applicability.

[0005] In view of this, the present invention proposes an airtightness testing device for automotive intercoolers. Summary of the Invention

[0006] This invention proposes an airtightness testing device for automotive intercoolers, which solves the problems in related technologies.

[0007] The technical solution of this utility model is as follows: A gas tightness testing device for an automotive intercooler includes a counterweight base; a controller fixedly connected to one side of the front of the counterweight base; a clamping plate symmetrically and movably connected to the top of the counterweight base; a clamping assembly mounted on the counterweight base, the clamping assembly being used to achieve sliding clamping of the clamping plate; a mounting bracket fixedly connected to the upper end of one side of the clamping plate, the top of the mounting bracket having a sliding groove, a fastening knob extending into the sliding groove being threadedly connected to the upper end of one side of the mounting bracket, a sliding plate extending out of the sliding groove being movably connected inside the sliding groove; a fixing plate fixedly connected to the top of the sliding plate, an electric telescopic rod fixedly connected to one side of the fixing plate, the output end of the electric telescopic rod passing through the fixing plate and fixedly connected to a connecting pipe, a sealing plug being sleeved on one side of the surface of the connecting pipe; an mounting assembly mounted on one side of the connecting pipe, the mounting assembly being used to achieve limiting installation of the sealing plug and one side of the surface of the connecting pipe; an air intake pipe fixedly connected to the bottom end of one of the connecting pipes, the surface of the air intake pipe being provided with a solenoid valve, and a pressure gauge fixedly connected to the bottom end of the other connecting pipe.

[0008] Preferably, the clamping assembly includes: a fixing groove formed at the top of the counterweight base, the inner wall of the fixing groove being rotatably connected to a positive and negative threaded rod; threaded blocks symmetrically threaded at both ends of the surface of the positive and negative threaded rod, the top of the threaded blocks being fixedly connected to the bottom end of the clamping plate; and a damped rotating handle rotatably connected to one side of the counterweight base, one side of the rotating handle being fixedly connected to one end of the positive and negative threaded rod.

[0009] Preferably, the top of the counterweight base at both ends of the fixed groove is provided with a sliding groove, and the bottom of the clamping plate is fixedly connected with a slider that slides in cooperation with the inside of the sliding groove.

[0010] Preferably, the mounting bracket is L-shaped, and the lower end of one side of the mounting bracket is welded to one side of the clamping plate in an integrated structure.

[0011] Preferably, a rubber pad is fixedly connected to one side of the clamping plate, and the clamping plate and the rubber pad are symmetrically distributed about the vertical central axis of the counterweight base.

[0012] Preferably, the sliding plate and the interior of the sliding groove form a sliding structure, and the sliding groove and the sliding plate are I-shaped.

[0013] Preferably, the installation assembly includes: a slot formed at the upper end of one side of the surface of the connecting pipe; a reserved groove formed on one side of the connecting pipe, wherein a slide rod is fixedly connected to the inner wall of the reserved groove; a sliding block slidably connected to the surface of the slide rod, wherein a positioning block is fixedly connected to one end of the top of the sliding block; a fixing spring wound around the surface of the slide rod, wherein both ends of the fixing spring are fixedly connected to the bottom wall of the reserved groove and the bottom end of the sliding block, respectively; and a locking block fixedly connected to one side of the inner wall of the sealing plug.

[0014] Preferably, the card block and the inside of the card slot form an engaging structure, and the card slot and card block are convex in shape.

[0015] Preferably, the sealing plug is shaped like an inverted frustum, and the inner wall of the sealing plug is fitted and installed against the surface of the connecting pipe.

[0016] Preferably, the sealing plug has a cavity inside, and the inner wall of the cavity has through holes extending to the outside of the sealing plug at equal angles.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the connecting pipes on both sides of the automotive intercooler are placed on the horizontal central axis of the counterweight base. Then, the clamping assembly causes the two clamping plates to slide synchronously, driving the rubber pads to clamp and fix the lower ends of both sides of the automotive intercooler. Then, the fastening knob is loosened, and the fixing plate is pulled upward to make the sliding plate slide up until the sealing plug is on the same horizontal plane as the connecting pipes on both sides of the automotive intercooler. Then, the fastening knob is tightened to limit and fix the sliding plate after sliding. Then, the electric telescopic rod is activated to make the sealing plug snap into the inside of the connecting pipe. The sealing plug is used to block and seal the connecting pipe. In the subsequent air injection test, some air will enter the cavity through the through hole, which will cause the sealing plug to expand and make it more tightly attached to the surface of the connecting pipe and the inner wall of the connecting pipe, further improving the sealing performance between the sealing plug and the connecting pipe. This allows for the clamping and sealing test of automotive intercoolers of different sizes, improving its applicability.

[0019] 2. In this utility model, the locking block and the slot are engaged, and the spring force of the fixing spring is used to allow the positioning block to slide up to one end of the locking block. This enables the quick installation and removal of the sealing plug and the surface of the connecting pipe. When the sealing plug is severely worn and the sealing performance is reduced, the sealing plug can be disassembled for maintenance or replacement, or different sizes of sealing plugs can be replaced to meet the sealing requirements of pipes with different diameters, thus improving its practicality. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a front view structural diagram of the present utility model;

[0022] Figure 2 This is a partial exploded view of the base of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the mounting bracket of this utility model;

[0024] Figure 4This is a partial enlarged cross-sectional view of the connecting pipe of this utility model;

[0025] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Sealing plug; 2. Fixing plate; 3. Electric telescopic rod; 4. Mounting bracket; 5. Clamping plate; 6. Rubber pad; 7. Controller; 8. Clamping assembly; 801. Slide groove; 802. Fixing groove; 803. Rotary handle; 804. Threaded block; 805. Slider; 806. Positive and negative threaded rod; 9. Counterweight base; 10. Pressure gauge; 11. Connecting pipe; 12. Fastening knob; 13. Slide groove; 14. Slide plate; 15. Solenoid valve; 16. Air inlet pipe; 17. Mounting assembly; 1701. Slot; 1702. Reserved slot; 1703. Fixing spring; 1704. Slide rod; 1705. Sliding block; 1706. Positioning block; 1707. Locking block; 18. Through hole; 19. Cavity. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0028] Example 1

[0029] A preferred embodiment of the airtightness testing device for automotive intercoolers provided by this utility model is, for example... Figures 1 to 5As shown: An airtightness testing device for an automotive intercooler includes a counterweight base 9; a controller 7 fixedly connected to one side of the front of the counterweight base 9; a clamping plate 5 symmetrically and movably connected to the top of the counterweight base 9; a clamping assembly 8 mounted on the counterweight base 9, the clamping assembly 8 being used to achieve sliding clamping of the clamping plate 5; a mounting bracket 4 fixedly connected to the upper end of one side of the clamping plate 5, the top of the mounting bracket 4 having a sliding groove 13, a fastening knob 12 threadedly connected to the upper end of one side of the mounting bracket 4 extending into the sliding groove 13, and a sliding plate movably connected inside the sliding groove 13 extending to the outside of the sliding groove 13. 14; A fixed plate 2 is fixedly connected to the top of the sliding plate 14. An electric telescopic rod 3 is fixedly connected to one side of the fixed plate 2. The output end of the electric telescopic rod 3 passes through the fixed plate 2 and is fixedly connected to a connecting pipe 11. A sealing plug 1 is sleeved on one side of the surface of the connecting pipe 11. An installation assembly 17 is assembled on one side of the connecting pipe 11. The installation assembly 17 is used to realize the limiting installation of the sealing plug 1 and one side of the surface of the connecting pipe 11. An air inlet pipe 16 is fixedly connected to the bottom end of one of the connecting pipes 11. A solenoid valve 15 is provided on the surface of the air inlet pipe 16. A pressure gauge 10 is fixedly connected to the bottom end of the other connecting pipe 11.

[0030] In a further preferred embodiment of the present invention, the clamping assembly 8 includes: a fixing groove 802 formed at the top of the counterweight base 9, with a positive and negative threaded rod 806 rotatably connected to the inner wall of the fixing groove 802; threaded blocks 804 symmetrically threaded at both ends of the surface of the positive and negative threaded rod 806, with the top end of the threaded blocks 804 fixedly connected to the bottom end of the clamping plate 5; and a damping rotating handle 803 rotatably connected to one side of the counterweight base 9, with one side of the handle 803 fixedly connected to one end of the positive and negative threaded rod 806.

[0031] In this embodiment, rotating the handle 803 drives the positive and negative threaded rods 806 to rotate. The threaded engagement between the positive and negative threaded rods 806 and the threaded block 804 causes the threaded block 804 to slide, thereby causing the clamping plate 5 to slide. This allows the rubber pads 6 to clamp and fix the lower ends of both sides of the automotive intercooler, facilitating subsequent airtightness testing.

[0032] In a further preferred embodiment of the present invention, the top of the counterweight base 9 at both ends of the fixed groove 802 is provided with a sliding groove 801, and the bottom of the clamping plate 5 is fixedly connected with a slider 805 that slides and cooperates with the inside of the sliding groove 801.

[0033] In this embodiment, the sliding of the slider 805 inside the groove 801 is used to improve the stability of the back-and-forth sliding of the clamping plate 5.

[0034] In a further preferred embodiment of this utility model, the mounting bracket 4 is L-shaped, and the lower end of one side of the mounting bracket 4 and one side of the clamping plate 5 are welded together as an integrated structure.

[0035] In this embodiment, the L-shaped mounting bracket 4 is used to clamp and fix the clamping plate 5 and the rubber pad 6 to the automotive intercooler.

[0036] In a further preferred embodiment of the present invention, a rubber pad 6 is fixedly connected to one side of the clamping plate 5, and the clamping plate 5 and the rubber pad 6 are symmetrically distributed about the vertical central axis of the counterweight base 9.

[0037] In this embodiment, rubber pads 6 are used to achieve flexible clamping and fixing of clamping plate 5 to the lower ends of both sides of the automotive intercooler.

[0038] In a further preferred embodiment of the present invention, a sliding structure is formed between the interior of the sliding plate 14 and the sliding groove 13, and the sliding groove 13 and the sliding plate 14 are in the shape of an I-beam.

[0039] In this embodiment, the smoothness of the fixed plate 2 sliding up and down is improved by utilizing the sliding between the I-shaped sliding plate 14 and the sliding groove 13.

[0040] Example 2

[0041] Based on Example 1, a preferred embodiment of the airtightness testing device for automotive intercoolers provided by this utility model is, for example... Figures 1 to 5 As shown: The mounting assembly 17 includes: a slot 1701 formed on the upper end of one side of the surface of the connecting pipe 11; a reserved slot 1702 formed on one side of the connecting pipe 11, with a slide rod 1704 fixedly connected to the inner wall of the reserved slot 1702; a sliding block 1705 slidably connected to the surface of the slide rod 1704, with a positioning block 1706 fixedly connected to one end of the top of the sliding block 1705; a fixing spring 1703 wound around the surface of the slide rod 1704, with both ends of the fixing spring 1703 fixedly connected to the bottom wall of the reserved slot 1702 and the bottom end of the sliding block 1705, respectively; and a locking block 1707 fixedly connected to one side of the inner wall of the sealing plug 1.

[0042] In this embodiment, by moving the sliding block 1705, the positioning block 1706 is driven to slide down and compress the fixing spring 1703 until it is completely separated from the locking block 1707. Then, the sealing plug 1 is pulled forcefully so that the locking block 1707 is completely disengaged from the inside of the slot 1701, thereby realizing the disassembly of the sealing plug 1 and facilitating the maintenance or replacement of the sealing plug 1.

[0043] In a further preferred embodiment of the present invention, the card block 1707 and the card slot 1701 form an engaging structure, and the card slot 1701 and the card block 1707 are convex in shape.

[0044] In this embodiment, the engagement between the convex locking block 1707 and the slot 1701 improves the firmness of the initial installation of the sealing plug 1 and the surface of the connecting pipe 11.

[0045] In a further preferred embodiment of this utility model, the sealing plug 1 is shaped like an inverted frustum, and the inner wall of the sealing plug 1 is fitted and installed with the surface of the connecting pipe 11.

[0046] In this embodiment, the frustum-shaped sealing plug 1 is used to facilitate the blocking and sealing of pipes with different diameters.

[0047] In a further preferred embodiment of the present invention, a cavity 19 is provided inside the sealing plug 1, and through holes 18 extending to the outside of the sealing plug 1 are provided at equal angles on the inner wall of the cavity 19.

[0048] In this embodiment, the through hole 18 and the cavity 19 are used so that air can enter the cavity 19 through the through hole 18 during the subsequent airtightness test, thereby causing the sealing plug 1 to expand and fit more tightly against the surface of the connecting pipe 11 and the inner wall of the connecting pipe, further improving the sealing performance between the sealing plug 1 and the connecting pipe.

[0049] The working principle of this utility model is as follows: First, place the connecting pipes on both sides of the car intercooler on the horizontal central axis of the counterweight base 9. Then, rotate the handle 803 to drive the positive and negative threaded rods 806 to rotate. Utilize the threaded engagement between the positive and negative threaded rods 806 and the threaded block 804 to make the threaded block 804 slide and drive the clamping plate 5 to slide. This will drive the rubber pad 6 to clamp and fix the lower ends of both sides of the car intercooler, which is convenient for subsequent airtightness testing. Then, pull the fixing plate 2 upward to make the sliding plate 14 slide upward until the sealing plug 1 is on the same horizontal plane as the connecting pipes on both sides of the car intercooler. Then, tighten the fastening knob 12 to limit and fix the sliding plate 14 after sliding. After that, start the electric telescopic rod 3 to make the sealing plug 1 lock into the inside of the connecting pipe, and use the sealing plug 1 to block and seal the connecting pipe.

[0050] Then, the intake pipe 16 is connected to an external air pump, and the air pump delivers external air from the intake pipe 16 to the inside of the connecting pipe 11, and then delivers the air to the inside of the car intercooler. At the same time, some of the air inside the car intercooler will enter the cavity 19 through the through hole 18, which will cause the sealing plug 1 to expand, making it more tightly attached to the surface of the connecting pipe 11 and the inner wall of the pipe, further improving the sealing performance between the sealing plug 1 and the pipe.

[0051] After the air pressure inside the car intercooler is measured by the air pressure gauge 10 to reach a certain level, the air pump is turned off to stop supplying air, and the solenoid valve 15 is closed. Then, the staff can observe the value on the air pressure gauge 10 at intervals. If the value does not change, it means that the air tightness of the car intercooler itself is qualified. Conversely, if the value on the air pressure gauge 10 drops significantly, it means that the air tightness of the car intercooler is unqualified.

[0052] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described above, and the electrical connection should be completed by referring to the working sequence of each electrical component. The detailed connection methods are well-known technologies in the field. The above mainly introduces the working principle and process, and will not describe the electrical control.

[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for testing the airtightness of an automotive intercooler, characterized in that, Include: Counterweight base (9); Controller (7) fixedly connected to the front side of the counterweight base (9); Symmetrically movably connected to the top end of the counterweight base (9) clamping plate (5); Clamping assembly (8) assembled on the counterweight base (9), the clamping assembly (8) is used to realize the sliding clamping of the clamping plate (5); Mounting bracket (4) fixedly connected to one side of the upper end of the clamping plate (5), the top end of the mounting bracket (4) is provided with a sliding groove (13), and the upper end of one side of the mounting bracket (4) is threadedly connected with a fastening knob (12) extending into the sliding groove (13), and the inside of the sliding groove (13) is movably connected with a sliding plate (14) extending to the outside of the sliding groove (13); Fixed plate (2) fixedly connected to the top end of the sliding plate (14), one side of the fixed plate (2) is fixedly connected with an electric telescopic rod (3), the output end of the electric telescopic rod (3) penetrates through the fixed plate (2) and is fixedly connected with a communication pipe (11), and one side of the surface of the communication pipe (11) is sleeved with a sealing plug (1); Mounting assembly (17) assembled on one side of the communication pipe (11), the mounting assembly (17) is used to realize the limiting installation of the sealing plug (1) and one side of the surface of the communication pipe (11); Air inlet pipe (16) fixedly connected to the bottom end of one of the communication pipes (11), the surface of the air inlet pipe (16) is provided with a solenoid valve (15), and the bottom end of the other communication pipe (11) is fixedly connected with a pressure gauge (10).

2. The air tightness testing device for an intercooler of an automobile according to claim 1, characterized in that, The clamping assembly (8) comprises: A fixed groove (802) is formed in the top end of the counterweight base (9), and the inner wall of the fixed groove (802) is rotatably connected with a positive and negative threaded rod (806); Symmetrically threadedly connected to the surface of the positive and negative threaded rod (806) are threaded blocks (804), and the top end of the threaded block (804) is fixedly connected with the bottom end of the clamping plate (5); A handle (803) is dampedly rotatably connected to one side of the counterweight base (9), and one side of the handle (803) is fixedly connected with one end of the positive and negative threaded rod (806).

3. The air tightness testing device for an intercooler of an automobile according to claim 2, characterized in that, The top end of the counterweight base (9) at both ends of the fixed groove (802) is provided with a sliding groove (801), and the bottom end of the clamping plate (5) is fixedly connected with a sliding block (805) in sliding fit with the inside of the sliding groove (801).

4. The air tightness testing device for an intercooler of an automobile according to claim 1, characterized in that, The mounting bracket (4) is L-shaped, and the lower end of one side of the mounting bracket (4) is in a welded integrated structure with one side of the clamping plate (5).

5. The air tightness testing device for an intercooler of an automobile according to claim 1, characterized in that, One side of the clamping plate (5) is fixedly connected with a rubber pad (6), and the clamping plate (5) and the rubber pad (6) are symmetrically distributed about the vertical central axis of the counterweight base (9).

6. The air tightness testing device for an intercooler of an automobile according to claim 1, characterized in that, The inside of the sliding groove (13) and the sliding plate (14) constitute a sliding structure, and the sliding groove (13) and the sliding plate (14) are I-shaped.

7. The air tightness testing device for an intercooler of an automobile according to claim 1, characterized in that, The mounting assembly (17) comprises: A clamping groove (1701) is formed in the upper end of one side of the surface of the communication pipe (11); A reserved groove (1702) is formed in one side of the communication pipe (11), and the inner wall of the reserved groove (1702) is fixedly connected with a sliding rod (1704); The sliding block (1705) is slidably connected to the surface of the slide rod (1704), and one end of the top end of the sliding block (1705) is fixedly connected with a positioning block (1706); The fixed spring (1703) is wound on the surface of the slide rod (1704), and the two ends of the fixed spring (1703) are fixedly connected with the inner bottom wall of the reserved groove (1702) and the bottom end of the sliding block (1705) respectively; The clamping block (1707) is fixedly connected to one side of the inner wall of the sealing plug (1).

8. The air tightness testing device for an intercooler of an automobile according to claim 7, characterized in that, The clamping block (1707) and the inside of the clamping groove (1701) form a clamping structure, and the shapes of the clamping groove (1701) and the clamping block (1707) are convex.

9. The air tightness testing device for an intercooler of an automobile according to claim 1, characterized in that, The shape of the sealing plug (1) is a reverse circular truncated cone, and the inner wall of the sealing plug (1) is sleeved with the surface of the communication pipe (11).

10. The air tightness testing device for an intercooler of an automobile according to claim 1, characterized in that, A cavity (19) is formed in the inside of the sealing plug (1), and the inner wall of the cavity (19) is equally angularly provided with a through hole (18) extending to the outside of the sealing plug (1).

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