Sheet metal part shell sealing performance detection mechanism

By designing an electric push rod and an adjusting sleeve for the contact frame, the adaptability of the sheet metal housing sealing test mechanism to changes in shape and material is solved, enabling flexible sealing test and ensuring the accuracy and reliability of the test.

CN224051535UActive Publication Date: 2026-03-27CHANGSHU HUAZHIXIN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing sheet metal housing sealing testing mechanisms are unable to flexibly adjust their shape according to changes in the housing shape, resulting in gaps between the sealing components and the housing, leading to deviations in test results. Furthermore, improper clamping force may damage the product or cause media leakage.

Method used

The design incorporates an electric push rod and an adjustable contact sleeve. The electric push rod automatically adjusts according to the shape of the housing, while the contact sleeve adjusts the clamping force through a threaded adjustment sleeve. This allows for flexible adaptation to sheet metal housings of different materials and thicknesses, ensuring the accuracy of the sealing test.

Benefits of technology

It achieves seamless sealing of sheet metal housings of different shapes and materials, avoiding inspection errors and product damage, and improving the accuracy and reliability of inspection.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224051535U_ABST
    Figure CN224051535U_ABST
Patent Text Reader

Abstract

The utility model discloses a sheet metal part shell sealing performance detection mechanism, which relates to the field of sheet metal part shells and comprises a mounting rack, and the inner wall of the mounting rack is fixedly connected with a first positioning rod. According to the utility model, the electric push rod is arranged to move the movable frame, when facing sheet metal shell main bodies with different shapes, the electric push rod and the movable frame work cooperatively, and the electric push rod starts to adjust the length in a targeted manner according to a preset program and pushes the movable frame to be gradually close to the sheet metal shell main bodies; the frame structure can be automatically and adaptively adjusted according to the bending shape of the sheet metal shell body, when the movable frame makes contact with the sheet metal shell body, the second sealing gasket is tightly attached to the surface of the sheet metal shell body under the thrust action of the electric push rod, seamless butt joint can be achieved, possibly existing gaps can be effectively filled, a reliable sealing space is formed, and the sealing effect of the sheet metal shell body is improved. And a solid foundation is laid for subsequent accurate sealing performance detection.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sheet metal part shell field, concretely is a sheet metal part shell sealing detection mechanism. BACKGROUND

[0002] Sheet metal parts are widely used in many industries due to their good strength, plasticity and cost-effectiveness, from electronic equipment, automobile manufacturing to aerospace, medical devices and other fields. As an important component of various products, sheet metal part shells play a key role in protecting internal components and maintaining normal operation environment of equipment. In these application scenarios, the sealing of the sheet metal part shell is crucial. Once the shell has sealing problems, harmful substances such as dust, moisture and corrosive gases from the outside may enter the interior, causing internal components to short circuit, corrode and damage, thereby affecting the performance and service life of the entire device. Therefore, a sheet metal part shell sealing detection mechanism is needed.

[0003] The existing sheet metal part shell sealing detection mechanism is difficult to flexibly adjust its shape according to the change of the shell shape when operating. When facing irregular sheet metal parts, gaps will inevitably appear between the sealing components and the shell, causing the detection medium to leak and making the detection results deviate. The resistance force adjustment is insufficient and cannot be changed according to the actual detection needs, which leads to the problem that when detecting thin or soft sheet metal part shells, excessive resistance force may cause the shell to deform and damage the product. When detecting thick and hard sheet metal part shells, the fixed small resistance force cannot guarantee the tightness of the seal, causing inaccurate detection results. Therefore, there is an urgent need for a sheet metal part shell sealing detection mechanism. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims to provide a sheet metal part shell sealing detection mechanism to solve the problem that the existing sheet metal part shell sealing detection mechanism is difficult to flexibly adjust its shape according to the change of the shell shape when operating. When facing irregular sheet metal parts, gaps will inevitably appear between the sealing components and the shell, causing the detection medium to leak and making the detection results deviate. The resistance force adjustment is insufficient and cannot be changed according to the actual detection needs, which leads to the problem that when detecting thin or soft sheet metal part shells, excessive resistance force may cause the shell to deform and damage the product. When detecting thick and hard sheet metal part shells, the fixed small resistance force cannot guarantee the tightness of the seal, causing inaccurate detection results.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a sheet metal part shell sealing detection mechanism, including the mounting bracket, the inner wall of mounting bracket is connected with first positioning rod stably, the outer wall of first positioning rod is connected with pressure pump stably, one end of pressure pump is provided with the trachea, one end of trachea is provided with pressure sensor, the outer wall of mounting bracket is bonded with first sealing gasket, the inner wall of mounting bracket is connected with second positioning rod stably, the outer wall of second positioning rod is connected with electric push rod stably, one end of electric push rod is installed with movable frame.

[0006] The inner wall of the movable frame is provided with a resisting frame, the outer wall of the resisting frame is fixedly connected with an adjusting sleeve, the inner wall of the adjusting sleeve is welded with a spring, the inner wall of the resisting frame is bonded with a second sealing gasket, and the second sealing gasket abuts against the sheet metal shell body on one side.

[0007] Preferably, the first positioning rod is threadedly connected with the pressure pump, and the first positioning rod is symmetrically arranged about the central axis of the pressure pump.

[0008] Preferably, the outer wall of the mounting bracket is tightly attached to the outer wall of the first sealing gasket, and the inner wall of the first sealing gasket is designed in a perforated manner.

[0009] Preferably, the electric push rod is movably connected with the movable frame, and the inner wall of the movable frame is designed in a perforated manner.

[0010] Preferably, the movable frame is clampedly connected with the resisting frame, and the outer wall length of the movable frame is the same as the outer wall length of the resisting frame.

[0011] Preferably, the resisting frame is threadedly connected with the adjusting sleeve, and the outer wall of the resisting frame is provided in a threaded manner.

[0012] Preferably, the inner wall of the resisting frame is tightly attached to the outer wall of the second sealing gasket, and the inner wall length of the resisting frame is greater than the outer wall length of the second sealing gasket.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The electric push rod plays a movable role on the movable frame, and when facing sheet metal shell bodies of different shapes, the electric push rod and the movable frame work cooperatively to show excellent adaptive ability. According to the preset program, the electric push rod starts to adjust its length in a targeted manner, and pushes the movable frame to gradually approach the sheet metal shell body. Due to the deformable characteristic of the movable frame, its frame structure can automatically adapt to the bending shape of the sheet metal shell body during the approaching process. When the movable frame contacts the sheet metal shell body, the second sealing gasket tightly attaches to the surface of the sheet metal shell body under the pushing force of the electric push rod, can realize seamless butt joint, effectively fills the possible gap, forms a reliable sealed space, and lays a solid foundation for subsequent accurate sealing detection.

[0015] 2、The utility model discloses a thread adjusting effect is played to adjusting sleeve through setting and touching frame, and the setting of touching frame and adjusting sleeve is convenient for adjusting according to the different needs such as the material, thickness and structural characteristics of sheet metal shell main part, and the operator can conveniently adjust the clamping force, for the sheet metal shell main part of thin material and soft texture, to avoid the deformation damage of shell body due to the excessive clamping force, the operator can slowly rotate adjusting sleeve, make it move down, reduce the compression degree of spring, reduce the clamping force of sheet metal shell main part, and for the sheet metal shell main part of hard material and complex structure, to ensure that can be closely attached in the process of leakproofness detection, prevent detection medium from leaking, and the operator can move up through rotating adjusting sleeve, increase the compression amount of spring, improve the clamping force of sheet metal shell main part, based on the collaborative work design of touching frame, adjusting sleeve and spring, make the device can flexibly adapt to the clamping needs of various different types of sheet metal shell main part, effectively improve the accuracy and reliability of detection, avoid the detection error or product damage due to improper clamping force. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of part spare of the utility model;

[0017] Figure 2 It is the structure schematic diagram of part spare of the utility model;

[0018] Figure 3 It is the structure schematic diagram of part spare of the utility model;

[0019] Figure 4 It is the structure schematic diagram of part spare of the utility model.

[0020] In the drawing: 1, mounting frame;2, first positioning rod;3, pressure pump;4, air pipe;5, pressure sensor;6, first sealing gasket;7, second positioning rod;8, electric push rod;9, movable frame;10, touching frame;11, adjusting sleeve;12, spring;13, second sealing gasket;14, sheet metal shell main part. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the utility model, and cannot be understood as limiting the utility model.

[0022] The embodiments of the utility model will be described below according to the overall structure.

[0023] Please refer to Figures 1-4The utility model provides a sheet metal part shell leakproofness detection mechanism, including mounting bracket 1, the inner wall of mounting bracket 1 is fixedly connected with first positioning rod 2, the outer wall of first positioning rod 2 is fixedly connected with pressure pump 3, first positioning rod 2 is threadedly connected with pressure pump 3, and first positioning rod 2 is arranged with the symmetry of the central axis of pressure pump 3, one end of pressure pump 3 is provided with air pipe 4, one end of air pipe 4 is provided with pressure sensor 5, the outer wall of mounting bracket 1 is bonded with first sealing pad 6, and the outer wall of mounting bracket 1 is tightly combined with the outer wall of first sealing pad 6, and the inner wall of first sealing pad 6 is designed as the open type, the inner wall of mounting bracket 1 is fixedly connected with second positioning rod 7, the outer wall of second positioning rod 7 is fixedly connected with electric push rod 8, one end of electric push rod 8 is installed with movable frame 9, electric push rod 8 is movably connected with movable frame 9, and the inner wall of movable frame 9 is designed as the open type, through the setting of electric push rod 8, movable frame 9 plays the activity, when facing the sheet metal shell body 14 of different shapes, electric push rod 8 and movable frame 9 work cooperatively, show excellent adaptive capacity, and electric push rod 8 starts to adjust the length itself according to the preset program, and pushes movable frame 9 and gradually approaches sheet metal shell body 14, due to the deformable characteristics of movable frame 9, in the approach process, the frame structure can automatically adapt to the bending shape of sheet metal shell body 14 and adjust adaptively.When movable frame 9 contacts with sheet metal shell body 14, second sealing pad 13 is tightly combined on the surface of sheet metal shell body 14 under the thrust of electric push rod 8, can realize seamless butt joint, effectively fills the gap that can exist, forms reliable sealed space, and lays a solid foundation for subsequent accurate leakproofness detection.

[0024] Please refer to Figures 1-4The inner wall of the movable frame 9 is provided with a resisting frame 10, the movable frame 9 is connected with the resisting frame 10 in clamping mode, the outer wall length of the movable frame 9 is same with that of the resisting frame 10, the outer wall of the resisting frame 10 is fixedly connected with an adjusting sleeve 11, the resisting frame 10 is threadedly connected with the adjusting sleeve 11, the outer wall of the resisting frame 10 is provided in thread mode, the inner wall of the adjusting sleeve 11 is welded with a spring 12, the inner wall of the resisting frame 10 is bonded with a second sealing gasket 13, the inner wall of the resisting frame 10 is tightly combined with the outer wall of the second sealing gasket 13, the inner wall length of the resisting frame 10 is greater than the outer wall length of the second sealing gasket 13, and the second sealing gasket 13 is abutted with a sheet metal shell main body 14 on one side, the resisting frame 10 is provided to threadedly adjust the adjusting sleeve 11, the resisting frame 10 and the adjusting sleeve 11 are provided to conveniently adjust according to different requirements of the material, thickness and structural features of the sheet metal shell main body 14, and an operator can conveniently adjust the clamping force, for the sheet metal shell main body 14 with thin material and soft texture, in order to avoid that the shell is deformed and damaged due to excessive clamping force, the operator can slowly rotate the adjusting sleeve 11 to move it downward, reduce the compression degree of the spring 12 and reduce the clamping force of the sheet metal shell main body 14, and for the sheet metal shell main body 14 with hard material and complex structure, in order to ensure that the sheet metal shell main body 14 is tightly combined during the sealing detection process and prevent the detection medium from leaking, the operator can rotate the adjusting sleeve 11 to move it upward, increase the compression amount of the spring 12 and improve the clamping force of the sheet metal shell main body 14, based on the cooperative work design of the resisting frame 10, the adjusting sleeve 11 and the spring 12, the device can flexibly adapt to the clamping requirements of various types of sheet metal shell main bodies 14, effectively improve the accuracy and reliability of the detection and avoid detection errors or product damage caused by improper clamping force.

[0025] Working principle: when in use, the device is taken out and placed in a designated position, the first positioning rod 2 is threadedly fixed to the pressure pump 3, the first sealing gasket 6 is adhesively fixed to the mounting frame 1, the resisting frame 10 is adhesively fixed to the second sealing gasket 13, the second positioning rod 7 is threadedly fixed to the electric push rod 8, the sheet metal shell main body 14 is placed on the upper end of the first sealing gasket 6, the resisting frame 10 is threadedly adjusted to a designated position according to the thickness requirement of the sheet metal shell main body 14, the electric push rod 8 is opened, the electric push rod 8 drives the movable frame 9 to push, the movable frame 9 is adjusted according to the shape of the sheet metal shell main body 14, the sheet metal shell main body 14 is sealed, finally the pressure pump 3 is opened, the pressure pump 3 pressurizes the sheet metal shell main body 14, the pressure sensor 5 detects, and the data is transmitted, so the use process of the device is completed, and the contents not described in detail in the specification belong to the existing technology known to the person skilled in the art.

[0026] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sheet metal part shell sealing detection mechanism, comprising a mounting frame (1), characterized in that: The inner wall of mounting frame (1) is fixedly connected with first positioning rod (2), the outer wall of first positioning rod (2) is fixedly connected with pressure pump (3), one end of pressure pump (3) is provided with air pipe (4), one end of air pipe (4) is provided with pressure sensor (5), the outer wall of mounting frame (1) is bonded with first sealing pad (6), the inner wall of mounting frame (1) is fixedly connected with second positioning rod (7), the outer wall of second positioning rod (7) is fixedly connected with electric push rod (8), one end of electric push rod (8) is provided with movable frame (9). The inner wall of movable frame (9) is provided with abutting frame (10), the outer wall of abutting frame (10) is fixedly connected with adjusting sleeve (11), the inner wall of adjusting sleeve (11) is welded with spring (12), the inner wall of abutting frame (10) is bonded with second sealing pad (13), one side of second sealing pad (13) is abutted with sheet metal shell body (14).

2. The sheet metal shell leak detection mechanism of claim 1, wherein: The first positioning rod (2) is screwed with pressure pump (3), and the first positioning rod (2) is symmetrically arranged with the central axis of pressure pump (3).

3. The sheet metal shell leak detection mechanism of claim 1, wherein: The outer wall of mounting frame (1) is tightly combined with the outer wall of first sealing pad (6), and the inner wall of first sealing pad (6) is designed as an open hole type.

4. The sheet metal shell leak detection mechanism of claim 1, wherein: The electric push rod (8) is movably connected with the movable frame (9), and the inner wall of the movable frame (9) is designed as an open hole type.

5. The sheet metal shell leak detection mechanism of claim 1, wherein: The movable frame (9) is clampedly connected with the abutting frame (10), and the length of the outer wall of the movable frame (9) is the same as that of the abutting frame (10).

6. The sheet metal shell leak detection mechanism of claim 1, wherein: The abutting frame (10) is screwed with the adjusting sleeve (11), and the outer wall of the abutting frame (10) is provided with threads.

7. The sheet metal shell leak detection mechanism of claim 1, wherein: The inner wall of abutting frame (10) is tightly combined with the outer wall of second sealing pad (13), and the length of the inner wall of abutting frame (10) is greater than that of the outer wall of second sealing pad (13).