Anti-collision packaging body for torsion bar transportation
By setting up foam boxes and sponge sleeves inside corrugated cardboard packaging boxes, and adding protruding strips in the central shaft groove, combined with rubber plates and corrugated cushioning paper pads, the problems of poor fixing effect and insufficient protection during the transportation of torsion bars are solved, achieving effective protection and reduced wear of torsion bars.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏凯骏机械有限公司
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional torsion bar transport packaging has poor fixing effect, insufficient protection, and a simple cushioning structure, which cannot effectively disperse multi-directional impact forces, resulting in easy deformation and wear of the spline parts.
The corrugated cardboard packaging box contains a foam box, which is composed of an assembly box body. The assembly box body has a central shaft groove and a spline groove. A sponge sleeve is installed in the central shaft groove and the spline groove. Rubber plates are inserted at both ends and secured with cable ties. The inner wall is filled with a corrugated cushioning paper pad. A circumferential convex strip is provided in the central shaft groove to increase the coefficient of friction.
It achieves a combination of rigid limiting and elastic buffering protection of the torsion bar, reduces fretting wear caused by transportation vibration, reduces the contact area between the foam box and the packaging box to reduce vibration transmission, provides multiple protections, and avoids packaging box breakage.
Smart Images
Figure CN224211481U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of transport packaging technology, and in particular relates to an anti-collision packaging body for torsion bar transport. Background Technology
[0002] As a key component of mechanical transmission systems, torsion bars are prone to deformation or wear during transportation due to collisions and vibrations, especially their surface spline structure and central shaft.
[0003] Traditional torsion bar transport packaging often uses a simple protective method of filling foam blocks inside corrugated cardboard boxes. This method has drawbacks such as poor fixation between the spline part and the foam contact surface, easy local stress concentration caused by axial displacement, and a single overall buffer structure that cannot disperse multi-directional impact forces. Utility Model Content
[0004] The purpose of this invention is to provide a collision-resistant packaging for torsion bar transportation to solve common problems such as poor fixing effect, insufficient protection effect, and simple cushioning structure in torsion bar transport packaging.
[0005] This utility model achieves the above-mentioned objectives through the following technical solution: it includes a corrugated cardboard packaging box, the corrugated cardboard packaging box having a foam box inside, the foam box including a pair of assembled box bodies, the inner side of the assembled box body having a central shaft groove and spline grooves at both ends thereto, the diameter of the spline groove being not less than the diameter of the central shaft groove, a sponge sleeve being provided inside the spline groove, the outer diameter of the sponge sleeve being the same as the diameter of the spline groove, rubber plates being inserted into the inner sides of both ends of the assembled box body, the two assembled box bodies being fastened together by cable ties, and a corrugated cushioning paper pad layer being filled between the inner wall of the corrugated cardboard packaging box and the foam box.
[0006] Furthermore, a number of axially arranged protrusions are fixedly provided on the inner side of the central shaft groove. Ten protrusions are evenly distributed along the circumference, with a semi-circular cross-section and a protrusion height of 2-3mm.
[0007] Furthermore, the sponge sleeve is composed of a cylindrical sponge and a circular plate-shaped sponge bonded together, and the length of the sponge sleeve is the same as the length of the spline groove.
[0008] Furthermore, the bottom of the assembly box has two large cutouts, which divide the contact area between the bottom of the assembly box and the corrugated cardboard box into three parts. The cutouts are not located directly below the spline groove. The length of the cutouts is 1 / 2 of the total length of the assembly box, and the height is 1 / 3 of the height of the assembly box.
[0009] Furthermore, the cable ties secure the hollowed-out area.
[0010] Furthermore, the rubber plate is located between the outer wall of one end of the assembly box and the spline groove.
[0011] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects:
[0012] 1. In this utility model, the 10 semi-circular convex strips evenly distributed in the circumferential direction of the central shaft groove increase the friction coefficient and, together with the length of the central shaft groove + spline groove, limit the axial sliding of the torsion bar. The sponge sleeve flexibly wraps the spline part, forming a composite protection system of "rigid limiting + elastic buffering", reducing the fretting wear caused by transportation vibration.
[0013] 2. In this utility model, the two-section foam box reduces the amount of material used by hollowing out the bottom half of the length, while also reducing the contact area between the foam box and the packaging box, reducing vibration transmission, and avoiding the risk of breakage of the foam box due to stress concentration.
[0014] 3. In this utility model, the rubber plate is embedded inside both ends of the assembly box to provide a second layer of protection when the foam box is subjected to a large impact and the edges break, thus preventing the spline from directly breaking through the packaging box and colliding with external items, resulting in minor damage. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the foam box structure of this utility model;
[0017] Figure 3 This is a partial structural diagram of the present invention.
[0018] In the picture: 1-Foam box, 2-Cable ties;
[0019] 11-Assemble the box body, 12-Central shaft groove, 13-Spline groove, 14-Sponge sleeve, 15-Rubber plate, 16-Raised strip, 17-Hollowed out. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Combination Figures 1 to 3The diagram shows a collision-resistant packaging for torsion bar transportation, comprising a corrugated cardboard box, inside which is a foam box 1. The foam box 1 includes a pair of assembled box bodies 11. The inner side of the assembled box body 11 is provided with a central shaft groove 12 and spline grooves 13 at both ends. The diameter of the spline groove 13 is not less than the diameter of the central shaft groove 12. A sponge sleeve 14 is provided inside the spline groove 13. The outer diameter of the sponge sleeve 14 is the same as the diameter of the spline groove 13. Rubber plates 15 are inserted into the inner sides of both ends of the assembled box body 11. After the two assembled box bodies 11 are assembled, they are fastened by cable ties 2. A corrugated cushioning paper pad layer is filled between the inner wall of the corrugated cardboard box and the foam box 1.
[0022] The inner side of the central groove 12 is fixed with several axially arranged protrusions 16. Ten protrusions 16 are evenly distributed along the circumference, with a semi-circular cross section and a protrusion height of 2-3mm.
[0023] The sponge sleeve 14 is composed of a cylindrical sponge and a circular plate sponge bonded together, and the length of the sponge sleeve 14 is the same as the length of the spline groove 13.
[0024] The bottom of the assembly box 11 has two large cutouts 17, which divide the contact area between the bottom of the assembly box 11 and the corrugated cardboard box into three parts. The cutouts 17 are not located directly below the spline groove 13. The length of the cutouts 17 is 1 / 2 of the total length of the assembly box 11, and the height is 1 / 3 of the height of the assembly box 11.
[0025] Two cable ties are used to tie the 17 perforated sections.
[0026] The rubber plate 15 is located between the outer wall of one end of the assembly box 11 and the spline groove 13.
[0027] Working principle: In use, the tubular sponge and the round plate sponge are bonded together to form a sponge sleeve 14, which is then fitted onto the outside of the torsion bar spline. 5mm thick neoprene rubber plates 15 are inserted into the inner sides of both ends of the box. The torsion bar is placed in the central shaft groove 12, and the sponge sleeves 14 at both ends are pressed into the spline groove 13 until they are completely in contact with the bottom of the groove. After closing the box, nylon cable ties 2 are used to apply pre-tightening force to the bottom cutout 17 position for binding. Finally, a corrugated cushioning paper pad layer is filled between the inner wall of the corrugated cardboard box and the foam box. After sealing the box, the packaging is complete.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A collision-resistant packaging for torsion bar transportation, comprising a corrugated cardboard box, characterized in that: The corrugated cardboard packaging box is provided with a foam box (1) inside. The foam box (1) includes a pair of assembled box bodies (11). The inner side of the assembled box body (11) is provided with a central shaft groove (12) and spline grooves (13) at both ends. The diameter of the spline groove (13) is not less than the diameter of the central shaft groove (12). A sponge sleeve (14) is provided inside the spline groove (13). The outer diameter of the sponge sleeve (14) is the same as the diameter of the spline groove (13). Rubber plates (15) are inserted into the inner sides of both ends of the assembled box body (11). The two assembled box bodies (11) are fastened by cable ties (2) after assembly.
2. The anti-collision packaging body for torsion bar transportation according to claim 1, characterized in that: The inner side of the central shaft groove (12) is fixedly provided with several axially arranged protrusions (16).
3. The anti-collision packaging body for torsion bar transportation according to claim 2, characterized in that: The sponge sleeve (14) is composed of a cylindrical sponge and a circular plate sponge bonded together, and the length of the sponge sleeve (14) is the same as the length of the spline groove (13).
4. The anti-collision packaging body for torsion bar transportation according to claim 3, characterized in that: The bottom of the assembly box (11) is provided with two large-sized cutouts (17), which divide the contact area between the bottom of the assembly box (11) and the corrugated cardboard box into three parts. The cutouts (17) are not located directly below the spline groove (13).
5. The anti-collision packaging body for torsion bar transportation according to claim 4, characterized in that: The cable tie (2) is used to secure the cutout (17) position.
6. The anti-collision packaging body for torsion bar transportation according to claim 5, characterized in that: The rubber plate (15) is located between the outer wall of one end of the assembly box (11) and the spline groove (13).