An auxiliary tool for assembling a sealing ring of a safety box

By designing auxiliary tooling for assembling the fuse box sealing ring, and using guide covers and pressing frames to assist in the installation of the sealing ring, the problems of difficult sealing ring assembly and uneven expansion were solved, achieving convenient and uniform installation of the sealing ring and meeting the waterproof and dustproof requirements of heavy-duty trucks.

CN224501827UActive Publication Date: 2026-07-14YAAN AVIONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YAAN AVIONICS CO LTD
Filing Date
2025-07-04
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The sealing ring of the fuse box is difficult to assemble and its elastic expansion is uneven, making it difficult to meet the IP67 waterproof and dustproof requirements of new energy trucks.

Method used

An auxiliary tooling for assembling a fuse box sealing ring was designed, including a guide cover, an insertion side, a release side, and a guide line. By designing a gradually increasing circumference and matching the shape of the fuse box sealing ring mounting groove, the guide cover and pressing frame are used to assist in the installation of the sealing ring, ensuring uniform expansion.

Benefits of technology

It enables convenient and uniform installation of the sealing ring, solves the problems of assembly difficulties and uneven elastic expansion, and meets the waterproof and dustproof requirements of heavy trucks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an insurance box sealing ring assembly auxiliary frock, including guide cover, guide cover is equipped with the side of putting into, the side of separating and guide line, the both ends of guide line are perpendicular to the plane of the side of putting into and the plane of the side of separating set up respectively, and guide line smooth transition, the shape of the side of separating is compatible with the shape of the sealing ring installation groove of insurance box, the circumference of the side of putting into is less than the circumference of the side of separating, the circumference of the section of guide cover perpendicular to guide line gradually increases in the direction from the side of putting into to the side of separating, to make the outer wall of guide cover form the expansion face. It can solve the problem that the insurance box sealing ring assembly is difficult and elastic expansion is uneven.
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Description

Technical Field

[0001] This utility model relates to the field of sealing technology for fuse boxes of heavy-duty trucks, and specifically to an auxiliary tooling for assembling fuse box sealing rings. Background Technology

[0002] The fuse box (also known as the fuse box) of a heavy-duty truck is a key component that protects various circuits in the electrical system. When the current exceeds the safe range, the fuse will blow, thereby preventing damage to the electrical equipment. In heavy-duty trucks, the fuse box is usually located near the cab or in the engine compartment for easy inspection and replacement.

[0003] With the continuous improvement of heavy-duty truck configurations, major domestic heavy-duty truck manufacturers have begun to launch new energy trucks. Consequently, the requirements for waterproof and dustproof vehicle components have increased, generally requiring an IP67 waterproof and dustproof rating. Traditional fuse box bodies can no longer meet this requirement. To address this requirement, fuse box bodies have been developed with sealing rings installed at structural joints to fill the gaps. The sealing rings are made of silicone, which is soft and elastic. Manually inserting the sealing rings into the sealing ring installation grooves of the fuse box is difficult and can easily lead to uneven elastic expansion of the sealing rings.

[0004] Therefore, this application is hereby submitted. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary tooling for assembling fuse box sealing rings, which can solve the problems of difficult assembly of fuse box sealing rings and uneven elastic expansion.

[0006] This utility model is achieved through the following technical solution:

[0007] An auxiliary tooling for assembling a fuse box sealing ring includes a guide cover. The guide cover has an insertion side, a release side, and a guide line. The two ends of the guide line are respectively perpendicular to the plane of the insertion side and the plane of the release side, and the guide line has a smooth transition. The circumferential shape of the release side matches the shape of the sealing ring mounting groove of the fuse box. The circumference of the insertion side is smaller than the circumference of the release side. The circumference of the cross section of the guide cover perpendicular to the guide line gradually increases from the insertion side to the release side, so that the outer wall of the guide cover forms an expanding surface.

[0008] In another preferred embodiment, a stabilizing surface is provided between the expanding surface and the detachment side, and the circumferential shape of any cross section of the stabilizing surface perpendicular to the guide line is the same as the circumferential shape of the detachment side.

[0009] In another preferred embodiment, the width of the stabilizing surface in the direction parallel to the guide line is greater than the thickness of the sealing ring.

[0010] In another preferred embodiment, an anti-detachment surface is provided between the expansion surface and the insertion side, and the circumferential shape of any cross section of the anti-detachment surface perpendicular to the guide line is the same as the circumferential shape of the insertion side.

[0011] In another preferred embodiment, a limiting block is provided on the detachment side along the direction of the guide line, and the shape of the limiting block matches the shape of the inner sidewall of the fuse box; when the detachment side is aligned with the sealing ring mounting groove, the limiting block is inserted into the fuse box.

[0012] In another preferred embodiment, the guide cover is hollowed out to make it cylindrical; the inner wall of the guide cover is provided with multiple horizontal ribs and multiple vertical ribs, the horizontal ribs are annular, the plane enclosed by the horizontal ribs is perpendicular to the guide line, and the vertical ribs are coplanar with the guide line.

[0013] In another preferred embodiment, the guide cover is provided with multiple horizontal support plates and multiple vertical support plates, both of which are fixedly connected to the inner wall of the guide cover, and the horizontal support plates are arranged perpendicularly to the vertical support plates.

[0014] In another preferred embodiment, the guide line is a straight line, and the plane containing the insert side is parallel to the plane containing the release side.

[0015] In another preferred embodiment, a pressing frame is further included, the inner sidewall shape of which matches the circumferential shape of the disengagement side, so that the pressing frame can be slidably fitted onto the guide cover along the direction of the guide line to press the sealing ring fitted onto the disengagement side into the sealing ring mounting groove.

[0016] In another preferred embodiment, a pressing handle is provided on one side of the pressing frame parallel to the guide line, and the pressing handle is located in the middle of the pressing frame.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] This utility model provides an auxiliary tooling for assembling fuse box sealing rings. By setting a guide cover with an insertion side, an expansion surface, and a release side, it forms a shape with a gradually increasing cross-sectional perimeter. The circumferential shape of the release side matches the shape of the fuse box's sealing ring mounting groove. In use, the sealing ring is first fitted onto the smaller-perimeter insertion side. Then, external force is applied to gradually move the sealing ring from the insertion side to the release side along the guide line, gradually expanding the sealing ring. The sealing ring on the release side matches the shape of the fuse box's sealing ring mounting groove. At this point, simply applying external force to remove the sealing ring from the release side allows it to smoothly enter the mounting groove, thus conveniently and quickly installing the sealing ring. Furthermore, as the sealing ring gradually expands along the expansion surface, it expands in all directions, effectively ensuring uniform expansion. Through the cooperation of these features, this auxiliary tooling for assembling fuse box sealing rings effectively solves the problems of difficult fuse box sealing ring assembly and uneven elastic expansion. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 A schematic diagram of the auxiliary tooling for assembling the sealing ring of the fuse box provided in this embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the auxiliary tooling for assembling the sealing ring of the fuse box provided in this embodiment of the utility model, when the sealing ring is fitted.

[0022] Figure 3 A schematic diagram of the pressing frame of the auxiliary tooling for assembling the sealing ring of the fuse box provided in this embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the pressing frame of the auxiliary tooling for assembling the sealing ring of the fuse box provided in this embodiment of the utility model during use;

[0024] Figure 5 This is a schematic diagram of the auxiliary tooling for assembling the sealing ring of the fuse box provided in this embodiment of the utility model, which presses the sealing ring into the mounting groove.

[0025] The attached diagram shows the markings and corresponding component names:

[0026] 1-Sealing ring; 10-Guide cover; 11-Insertion side; 12-Disengagement side; 121-Limiting block; 13-Expansion surface; 14-Stabilizing surface; 15-Anti-detachment surface; 16-Horizontal rib; 17-Longitudinal rib; 18-Horizontal support plate; 20-Press frame; 21-Press handle. Detailed Implementation

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

[0028] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0030] Example

[0031] Please refer to Figures 1 to 5 This embodiment provides an auxiliary tooling for assembling a fuse box sealing ring, including a guide cover 10. The guide cover 10 has an insertion side 11, a release side 12, and a guide line. The two ends of the guide line are respectively perpendicular to the plane of the insertion side 11 and the plane of the release side 12, and the guide line has a smooth transition. The circumferential shape of the release side 12 matches the shape of the sealing ring mounting groove of the fuse box. The circumference of the insertion side 11 is smaller than the circumference of the release side 12. The circumference of the cross section of the guide cover 10 perpendicular to the guide line gradually increases along the direction from the insertion side 11 to the release side 12, so that the outer wall of the guide cover 10 forms an expanding surface 13.

[0032] This utility model provides an auxiliary tooling for assembling a fuse box sealing ring. By setting a guide cover 10, which has an insert side 11, a supporting surface 13, and a release side 12, a shape with a gradually increasing cross-sectional perimeter is formed. The circumferential shape of the release side 12 matches the shape of the fuse box's sealing ring mounting groove. In use, the sealing ring 1 is first fitted onto the insert side 11 with the smaller perimeter. Then, by applying external force, the sealing ring 1 is gradually moved from the insert side 11 to the release side 12 along the guide line, gradually expanding the sealing ring 1. The sealing ring located on the release side 12... The shape of ring 1 matches the mounting groove of the sealing ring in the fuse box. At this time, it is only necessary to continue to use external force to make the sealing ring 1 leave from the detachment side 12, so that the sealing ring 1 can be smoothly put into the mounting groove. Thus, the sealing ring 1 can be conveniently and quickly installed into the mounting groove. As the sealing ring 1 gradually expands along the expansion surface 13, it expands in all directions, thus effectively ensuring the uniformity of expansion. Through the cooperation of the above features, the fuse box sealing ring assembly auxiliary tooling can effectively solve the problems of difficult assembly of the fuse box sealing ring 1 and uneven elastic expansion.

[0033] It should be noted that the above-mentioned guide lines are virtual concepts, artificially set for ease of description. There are no physical guide lines in the actual product. Theoretically, the guide lines in this application can be lines with smooth transitions of any shape, such as straight lines, arcs with constant curvature, and arcs with variable curvature, so that the guide cover 10 can present different shapes. For example, if the guide line is a straight line, the guide cover 10 can be a trumpet shape, a frustum shape, a truncated cone shape, etc. If the guide line is an arc with constant curvature, the guide cover 10 can be a bull's horn shape. All of these conform to the shape of one side having a smaller perimeter, one side having a larger perimeter, and the sidewall gradually increasing.

[0034] In order for the expanded sealing ring 1 to stay near the detachment side 12 and not spontaneously move in the opposite direction along the expansion surface 13 due to its own contraction, a stabilizing surface 14 is provided between the expansion surface 13 and the detachment side 12. The circumferential shape of any cross section of the stabilizing surface 14 perpendicular to the guide line is the same as the circumferential shape of the detachment side 12.

[0035] By setting a stabilizing surface 14, the sealing ring 1 is clamped on the stabilizing surface 14 to remove the component force it bears along the guide line direction, thereby preventing it from spontaneously moving in the opposite direction along the expansion surface 13 under the action of its own contraction force.

[0036] In order for the sealing ring 1 to be stably clamped onto the stabilizing surface 14, the width of the stabilizing surface 14 in the direction parallel to the guide line is greater than the thickness of the sealing ring 1.

[0037] The above configuration ensures that the stabilizing surface 14 has sufficient width to support the sealing ring 1, preventing the sealing ring 1 from being partially clamped to the stabilizing surface 14 while the other part is detached from it.

[0038] In order to ensure that the unexpanded sealing ring 1 is stably fitted onto the fitting side 11, an anti-detachment surface 15 is provided between the expansion surface 13 and the fitting side 11. The circumferential shape of any cross section of the anti-detachment surface 15 perpendicular to the guide line is the same as the circumferential shape of the fitting side 11.

[0039] In order to align the guide cover 10 with the fuse box, that is, to align the disengagement side 12 with the sealing ring mounting groove, the disengagement side 12 is provided with a limiting block 121 protruding along the direction of the guide line, and the shape of the limiting block 121 matches the shape of the inner side wall of the fuse box; when the disengagement side 12 is aligned with the sealing ring mounting groove, the limiting block 121 is inserted into the fuse box.

[0040] With the above configuration, the limiting block 121 is embedded in the fuse box, so that the four sides of the limiting block 121 abut against the inner side wall of the fuse box. The inner side wall of the fuse box limits the limiting block 121, thereby indirectly limiting the guide cover 10, so that the detachment side 12 is aligned with and maintained with the sealing ring mounting groove.

[0041] To reduce the overall weight of the guide cover 10, the guide cover 10 is hollowed out to make it cylindrical; the inner wall of the guide cover 10 is provided with multiple horizontal ribs 16 and multiple vertical ribs 17, the horizontal ribs 16 are annular, the plane enclosed by the horizontal ribs 16 is perpendicular to the guide line, and the vertical ribs 17 are coplanar with the guide line.

[0042] The above-mentioned design reduces weight by hollowing out the structure, while the structural strength of the guide cover 10 is enhanced by setting horizontal ribs 16 and vertical ribs 17.

[0043] In order to further improve the structural strength of the guide cover 10 and prevent the sealing ring 1 from deforming unnecessarily due to the contraction force, the guide cover 10 is provided with multiple horizontal support plates 18 and multiple vertical support plates. The horizontal support plates 18 and the vertical support plates are fixedly connected to the inner wall of the guide cover 10, and the horizontal support plates 18 and the vertical support plates are arranged perpendicularly.

[0044] Preferably, the guide line is a straight line, and the plane where the insert side 11 is located is parallel to the plane where the detachment side 12 is located.

[0045] Please refer to Figures 3 to 5In order to facilitate applying external force to the sealing ring 1, forcing it to detach from the detachment side 12 and enter the sealing ring mounting groove, the above-mentioned sealing ring assembly auxiliary tooling for the fuse box also includes a pressing frame 20. The inner sidewall shape of the pressing frame 20 matches the circumferential shape of the detachment side 12, so that the pressing frame 20 can slide and be sleeved on the outside of the guide cover 10 along the direction of the guide line, so as to press the sealing ring 1 sleeved on the detachment side 12 into the sealing ring mounting groove.

[0046] To facilitate gripping or pressing, the pressing frame 20 is provided with a pressing handle 21 on one side parallel to the guide line, and the pressing handle 21 is located in the middle of the pressing frame 20.

[0047] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An auxiliary tooling for assembling a fuse box sealing ring, characterized in that, Includes a guide cover (10), the guide cover (10) is provided with an insert side (11), a release side (12) and a guide line, the two ends of the guide line are respectively perpendicular to the plane where the insert side (11) is located and the plane where the release side (12) is located, and the guide line is smoothly transitioned; The circumferential shape of the detachment side (12) matches the shape of the sealing ring mounting groove of the fuse box; The perimeter of the insert side (11) is smaller than the perimeter of the detachment side (12); The perimeter of the cross section of the guide cover (10) perpendicular to the guide line gradually increases along the direction from the insertion side (11) to the release side (12), so that the outer wall of the guide cover (10) forms an expanding surface (13).

2. The auxiliary tooling for assembling the fuse box sealing ring according to claim 1, characterized in that, A stabilizing surface (14) is sandwiched between the expanding surface (13) and the detachment side (12). The circumferential shape of any cross section of the stabilizing surface (14) perpendicular to the guide line is the same as the circumferential shape of the detachment side (12).

3. The auxiliary tooling for assembling the fuse box sealing ring according to claim 2, characterized in that, The width of the stabilizing surface (14) in the direction parallel to the guide line is greater than the thickness of the sealing ring.

4. The auxiliary tooling for assembling the fuse box sealing ring according to claim 1, characterized in that, An anti-detachment surface (15) is provided between the expansion surface (13) and the fitting side (11), and the circumferential shape of any cross section of the anti-detachment surface (15) perpendicular to the guide line is the same as the circumferential shape of the fitting side (11).

5. The auxiliary tooling for assembling the fuse box sealing ring according to claim 1, characterized in that, The detachment side (12) is provided with a limiting block (121) protruding along the direction of the guide line, and the shape of the limiting block (121) matches the shape of the inner wall of the safe. When the detachment side (12) aligns with the sealing ring mounting groove, the limiting block (121) is inserted into the safety box.

6. The auxiliary tooling for assembling the fuse box sealing ring according to claim 1, characterized in that, The guide cover (10) is hollowed out so that the guide cover (10) is a cylindrical part; The inner wall of the guide cover (10) is provided with multiple horizontal ribs (16) and multiple vertical ribs (17). The horizontal ribs (16) are in the shape of a ring. The plane enclosed by the horizontal ribs (16) is set perpendicular to the guide line. The vertical ribs (17) are set coplanar with the guide line.

7. The auxiliary tooling for assembling the fuse box sealing ring according to claim 6, characterized in that, The guide cover (10) is provided with multiple horizontal support plates (18) and multiple vertical support plates. The horizontal support plates (18) and the vertical support plates are fixedly connected to the inner wall of the guide cover (10). The horizontal support plates (18) and the vertical support plates are arranged perpendicularly.

8. The auxiliary tooling for assembling the fuse box sealing ring according to claim 1, characterized in that, The guide line is a straight line, and the plane where the insert side (11) is located is parallel to the plane where the detachment side (12) is located.

9. The auxiliary tooling for assembling the fuse box sealing ring according to claim 8, characterized in that, It also includes a pressing frame (20), the inner wall shape of which matches the circumferential shape of the disengagement side (12) so that the pressing frame (20) can be slidably fitted onto the guide cover (10) along the direction of the guide line so as to press the sealing ring fitted onto the disengagement side (12) into the sealing ring mounting groove.

10. The auxiliary tooling for assembling the fuse box sealing ring according to claim 9, characterized in that, The pressing frame (20) has a pressing handle (21) on one side parallel to the guide line, and the pressing handle (21) is located in the middle of the pressing frame (20).