Leakage detection die for gasket end face sealing detection

Abstract

The utility model provides a leak detection die for gasket end face sealing detection, which relates to the technical field of detection tools and comprises a base provided with a flat side end face and a flat lower end face. The side end face is provided with a first interface for inserting a to-be-detected pipe fitting, and the first interface is communicated with the second interface; a handle is hinged to the base, and an anti-disengaging limiting hook is arranged at the end of the handle. The handle is rotatably connected with a movable pin, the movable pin is provided with an axial mounting hole, an adjusting screw is arranged on the axial mounting hole in a penetrating manner, and the adjusting screw is fixed on the movable pin through a nut; the adjusting screw is connected with a pressing plate, and the lower end of the pressing plate is provided with an arc-shaped opening matched with the outer diameter of a to-be-detected pipe fitting. The utility model has the beneficial effects that by adopting a pure mechanical design, the structure is simple, and the manufacturing cost is low; the device is helpful for detecting the condition of neglected loading or excessive loading of the sealing gaskets, plays a fool-proof role, and improves the detection accuracy and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling technology, and in particular to a leak detection mold for gasket end face sealing testing. Background Technology

[0002] In the operation of modern air conditioning systems, the sealing performance of pipe connections is a key factor in ensuring the efficient and stable operation of the system. Its quality directly affects the overall performance, energy consumption, and service life of the air conditioner. Gaskets, as the core component for achieving pipe end-face sealing, play a decisive role in the stable operation of the air conditioning system due to their installation condition and sealing quality. Therefore, accurate and efficient testing of gasket end-face seals is a crucial step in ensuring the quality of air conditioning products.

[0003] In the prior art, such as patent publication number CN222124279U, a HUD thermal pad leak detection device is disclosed. The technical solution of this device includes a tooling base, a sensing sensor, a distance sensor, an alarm device, and a control device. The tooling base includes a worktable with a positioning slot; the sensing sensor is located at the bottom of the worktable and corresponds to the positioning slot; the distance sensor is fixed above the worktable by a bracket and corresponds to the positioning slot; the alarm device is an audible and visual alarm device located on the worktable; the control device is communicatively connected to the sensing sensor, distance sensor, and alarm device, and is also connected to the electric screwdriver in the next process to control its start and stop.

[0004] However, this type of leak detection device has significant drawbacks in practical applications. Its complex structural design integrates numerous components and precision mechanical structures such as sensors and alarms. This complexity leads to a series of problems: firstly, it significantly increases the manufacturing cost of the device, placing considerable economic pressure on enterprises in terms of equipment procurement and upgrades; secondly, the installation, commissioning, and maintenance of the device become extremely cumbersome, requiring a significant investment of time and effort from specialized technicians. Furthermore, due to the device's complex structure, troubleshooting and repair are significantly more difficult. Once a malfunction occurs, prolonged downtime for repairs is often necessary, disrupting normal production plans, severely impacting production efficiency, and causing unnecessary economic losses for the enterprise. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides a leak detection mold for gasket end face sealing detection. It adopts a purely mechanical design, has a simple structure, and low manufacturing cost. It helps to detect missing or extra sealing gaskets, plays a foolproof role, and improves detection accuracy and efficiency.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A leak detection mold for gasket end face sealing detection includes a base, the base having a flat side end face and a flat bottom end face; the side end face has a first interface for inserting a pipe fitting to be tested, the first interface being connected to a second interface; a handle is hinged to the base, the end of the handle having an anti-disengagement limiting hook; a movable pin is rotatably connected to the handle, the movable pin having an axial mounting hole, an adjusting screw passing through the axial mounting hole, the adjusting screw being fixed to the movable pin by a nut; a pressure plate is connected to the adjusting screw, the lower end of the pressure plate having an arc-shaped opening adapted to the outer diameter of the pipe fitting to be tested;

[0008] When the pipe fitting to be tested is inserted into the first interface, the handle is pressed down to drive the pressure plate to press the pipe fitting joint against the side end face. At this time, the distance between the pressure plate and the side end face is equal to the sum of the joint thickness and the thickness of the preset number of sealing gaskets.

[0009] Furthermore, an anti-loosening washer is provided between the adjusting screw and the pressure plate.

[0010] Furthermore, the base is provided with a first base and a second base arranged symmetrically. The first base and the second base are fixed to the base by fixing screws, and the handle is pivotally connected to the first base and the second base by fixing pins.

[0011] Furthermore, the radius of curvature of the arc-shaped opening is matched with the outer diameter tolerance of the pipe fitting to be tested.

[0012] Furthermore, the nut is a double nut configuration, located on both sides of the movable pin.

[0013] Furthermore, the head of the fixing screw is provided with an internal hexagonal groove, which facilitates installation and removal using an internal hexagonal wrench.

[0014] Furthermore, the flat lower end surface of the base is provided with an anti-slip component to prevent the leak detection mold from sliding during the detection process; the anti-slip component includes: a rubber pad layer vulcanized and bonded to the lower end surface, and an anti-slip texture structure formed on the lower surface of the rubber pad layer.

[0015] Furthermore, the aperture of the first interface satisfies the following dimensional relationship: D2>D1>D0, where: D2 is the outer diameter of the sealing gasket, D1 is the aperture of the first interface, and D0 is the outer diameter of the pipe to be tested.

[0016] Furthermore, a stepped recessed structure is formed at the port of the second interface.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model adopts a purely mechanical design, with a simple structure and low manufacturing cost. The anti-slip component at the lower end of the base enhances the stability of the leak detection mold during testing. The double nuts and anti-loosening gaskets 7 ensure stable connection and allow adjustment of the distance between the pressure plate and the side end face. Finally, by detecting gas leakage, the sealing performance can be judged, thereby checking for missing or extra sealing gaskets, playing a foolproof role, and improving the accuracy and efficiency of testing. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 It is the overall leak detection mold Figure 1 The handle is in a raised position;

[0021] Figure 2 This is a side view of the leak detection mold;

[0022] Figure 3 It is the overall leak detection mold Figure 2 The handle is in the down position;

[0023] Figure 4 This is a structural diagram of the base, the first base, and the second base;

[0024] Figure 5 This is a structural diagram of the pipe fittings, pipe joints, and sealing gaskets being tested;

[0025] Figure 6 This is a schematic diagram of the leak detection mold in the detection state.

[0026] In the diagram: 1. Base; 101. First interface; 102. Second interface; 2. Handle; 201. Anti-detachment limit hook; 3. Movable pin; 4. Adjusting screw; 5. Nut; 6. Pressure plate; 601. Arc-shaped opening; 7. Anti-loosening washer; 8. First base; 9. Second base; 10. Fixing screw.

[0027] A. Inspection pipe fittings; B. Pipe fitting joints; C. Sealing gaskets. Detailed Implementation

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] like Figures 1 to 6As shown, this utility model claims protection for a leak detection mold for gasket end face sealing detection. The leak detection mold is mainly used to detect whether the sealing gasket C is missing or excessive at the pipe joint B of pipe fitting A. Through reasonable structural design, it can conveniently and accurately perform sealing detection on the pipe fitting A to be tested. Moreover, it adopts a purely mechanical design, has a simple structure, and low manufacturing cost.

[0030] Specifically, a leak detection mold for gasket end-face sealing testing includes a base 1, which is the fundamental component of the entire leak detection mold. The base 1 has a flat side end face and a flat bottom end face. A first interface 101 for inserting the pipe fitting A to be tested is provided on the side end face. The first interface 101 communicates with a second interface 102. The aperture of the first interface 101 satisfies the dimensional relationship: D2>D1>D0, where D2 is the outer diameter of the sealing gasket C, D1 is the aperture of the first interface 101, and D0 is the outer diameter of the pipe fitting A to be tested. This dimensional design ensures that the sealing gasket C can be correctly installed between the pipe fitting A to be tested and the first interface 101. A stepped recessed structure is formed at the port of the second interface 102. This structure may be used for connection with other testing equipment or pipelines, serving a positioning and sealing function.

[0031] The flat lower surface of base 1 is equipped with an anti-slip component to prevent the leak detection mold from sliding during the inspection process. The anti-slip component includes a rubber pad layer vulcanized and bonded to the lower surface, and an anti-slip textured structure formed on the lower surface of the rubber pad layer. The rubber pad layer provides a certain degree of elasticity and friction, and the anti-slip textured structure further enhances the anti-slip effect.

[0032] A handle 2 is hinged to the base 1, and the end of the handle 2 is provided with an anti-disengagement limiting hook 201. The handle 2 is pivotally connected to the first base 8 and the second base 9 symmetrically arranged on the base 1 by a fixing pin. The first base 8 and the second base 9 are fixed to the base 1 by fixing screws 10. The head of the fixing screws 10 is provided with an internal hexagonal groove, which facilitates installation and removal using an internal hexagonal wrench.

[0033] The handle 2 is rotatably connected to a movable pin 3. The movable pin 3 has an axial mounting hole, through which an adjusting screw 4 passes. The adjusting screw 4 is fixed to the movable pin 3 by a nut 5. The nut 5 is a double nut configuration, located on both sides of the movable pin 3. This double nut configuration can prevent the adjusting screw 4 from loosening. By adjusting the position of the two nuts 5, the distance between the pressure plate 6 and the side end face can be adjusted. The distance between the pressure plate 6 and the side end face is set to accommodate only one sealing gasket C. If the sealing gasket C is missing, a leak alarm will be triggered during the leak detection process. If more sealing gaskets C are installed, the handle 2 cannot be pressed down further to fasten the product.

[0034] An anti-loosening washer 7 is provided between the adjusting screw 4 and the pressure plate 6, which further enhances the stability of the connection.

[0035] The adjusting screw 4 is connected to a pressure plate 6. The lower end of the pressure plate 6 is provided with an arc-shaped opening 601 that matches the outer diameter of the pipe A to be tested. The radius of curvature of the arc-shaped opening 601 is in tolerance with the outer diameter of the pipe A to be tested, so as to ensure that the pressure plate 6 can fit tightly against the pipe A to be tested.

[0036] The specific working principle is as follows: Based on the size of the pipe fitting A to be tested and the specifications of the sealing gasket C, select a suitable position for the adjusting screw 4, and fix the adjusting screw 4 on the movable pin 3 using double nuts 5, so that the distance between the pressure plate 6 and the side end face is equal to the sum of the joint thickness and the thickness of the preset number of sealing gaskets C; then insert the pipe fitting A to be tested into the first interface 101 on the side end face of the base 1, ensuring that the pipe fitting is inserted in place; then press down the handle 2, the handle 2 rotates around the fixed pin, driving the movable pin 3 and the adjusting screw 4 to move downward, thereby driving the pressure plate 6 to press the pipe fitting joint B against the side end face. At this time, the distance between the pressure plate 6 and the side end face is equal to the sum of the joint thickness and the thickness of the preset number of sealing gaskets C, so that the sealing gasket C is subjected to appropriate pressure, simulating the sealing state in actual use; finally, connect the second interface 102 to the testing equipment or pipeline, apply a certain pressure to the pipe fitting A to be tested or introduce testing gas through the testing equipment, and observe whether there is any leakage, thereby judging the sealing performance of the sealing gasket C. Assuming that the distance between the pressure plate 6 and the side end face can only accommodate one sealing gasket C, if the sealing gasket C is missing, the leak detection process will trigger an air leak alarm. If more sealing gaskets C are installed, the handle 2 cannot be pressed down further to fasten the product, thus also serving as a foolproof inspection measure.

[0037] This utility model adopts a purely mechanical design, with a simple structure and low manufacturing cost. The anti-slip component at the lower end of the base 1 enhances the stability of the leak detection mold during testing. The double nuts and anti-loosening gaskets 7 ensure stable connection and allow adjustment of the distance between the pressure plate and the side end face. Finally, by detecting gas leakage, the sealing performance can be judged, thereby checking for missing or extra sealing gaskets C, playing a foolproof role and improving the accuracy and efficiency of testing.

[0038] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the 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. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A leak detection mold for gasket end face seal detection, characterized by, The device includes a base (1), which has a flat side end face and a flat bottom end face; the side end face has a first interface (101) for inserting a test fitting (A), and the first interface (101) is connected to a second interface (102); a handle (2) is hinged on the base (1), and the end of the handle (2) is provided with an anti-detachment limiting hook (201); a movable pin (3) is rotatably connected to the handle (2), and the movable pin (3) has an axial mounting hole, through which an adjusting screw (4) passes, and the adjusting screw (4) is fixed to the movable pin (3) by a nut (5); a pressure plate (6) is connected to the adjusting screw (4), and the lower end of the pressure plate (6) has an arc-shaped opening (601) that matches the outer diameter of the test fitting (A); When the pipe fitting (A) to be tested is inserted into the first interface (101), the handle (2) is pressed down to drive the pressure plate (6) to press the pipe fitting joint (B) against the side end face. At this time, the distance between the pressure plate (6) and the side end face is equal to the sum of the joint thickness and the thickness of the preset number of sealing gaskets (C).

2. The leak detection mold for gasket end face seal detection of claim 1, wherein, An anti-loosening washer (7) is provided between the adjusting screw (4) and the pressure plate (6).

3. The leak detection mold for gasket end face seal detection of claim 1, wherein, The base (1) is provided with a first base (8) and a second base (9) arranged symmetrically. The first base (8) and the second base (9) are fixed to the base (1) by fixing screws (10). The handle (2) is pivotally connected to the first base (8) and the second base (9) by fixing pins.

4. The leak detection mold for gasket end face sealing detection according to claim 1, characterized in that, The radius of curvature of the arc-shaped opening (601) is compatible with the outer diameter tolerance of the pipe fitting (A) to be tested.

5. The leak detection mold for gasket end face sealing detection according to claim 1, characterized in that, The nut (5) is a double nut (5) configuration, located on both sides of the movable pin (3).

6. The leak detection mold for gasket end face sealing detection according to claim 3, characterized in that, The head of the fixing screw (10) is provided with an internal hexagonal groove, which facilitates installation and removal using an internal hexagonal wrench.

7. The leak detection mold for gasket end face sealing detection according to claim 1, characterized in that, The base (1) has a flat lower end surface with an anti-slip component to prevent the leak detection mold from sliding during the detection process; the anti-slip component includes: a rubber pad layer vulcanized and bonded to the lower end surface, and an anti-slip texture structure formed on the lower surface of the rubber pad layer.

8. The leak detection mold for gasket end face sealing detection according to claim 1, characterized in that, The aperture of the first interface (101) satisfies the following dimensional relationship: D2>D1>D0, where: D2 is the outer diameter of the sealing gasket (C), D1 is the aperture of the first interface (101), and D0 is the outer diameter of the pipe fitting (A) to be tested.

9. The leak detection mold for gasket end face sealing detection according to claim 1, characterized in that, The second interface (102) has a stepped recessed structure at its port.

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