A torsion bar transport cylinder package

Abstract

The utility model discloses a kind of torsion bar transport cylindrical packaging body, including torsion bar spring, torsion bar spring outside is equipped with spliced cylinder, spliced cylinder both ends are equipped with closure cap, closure cap inside is equipped with cylinder cabin, closure cap inserts the inside of the cylinder body of spliced cylinder, the stem of torsion bar spring is located in spliced cylinder, its both ends spline is located in cylinder cabin, spliced cylinder outside is tied and fixed using packing tape, closure cap one end opening outside is fixed with annular insertion pin, annular insertion pin inserts the inside of the cylinder body of spliced cylinder, and make closure cap end surface and spliced cylinder end surface meet;The utility model has the advantages of good limiting effect, excellent buffering protection effect, convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model belongs to the field of transport packaging technology, and in particular relates to a torsion bar transport cylindrical packaging body. 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 insufficient limiting, poor cushioning performance, and cumbersome disassembly and assembly. Due to the redundant space inside the box, it is difficult to effectively suppress the radial sway and axial movement of the torsion bar spring by relying solely on the filler. It lacks directional protection, resulting in a high risk of deformation. At the same time, loose filler is prone to displacement and failure, and the outer packaging box itself has limited energy absorption effect, which cannot fully attenuate the impact vibration under complex road conditions. In addition, the packaging efficiency is low and the reusability is poor. Utility Model Content

[0004] The purpose of this utility model is to provide a torsion bar cylindrical packaging body to solve common problems such as insufficient limiting, poor cushioning performance, and cumbersome disassembly and assembly in torsion bar transport packaging.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: it includes a torsion bar spring, the torsion bar spring is provided with a splicing cylinder on its outside, both ends of the splicing cylinder are provided with a sealing cap, the inner side of the sealing cap is provided with a cylinder chamber, the sealing cap is inserted into the inner side of the cylinder body of the splicing cylinder, the rod body of the torsion bar spring is located inside the splicing cylinder, the splices at both ends are located inside the cylinder chamber, and the outer side of the splicing cylinder is tied and fixed with packing straps.

[0006] Furthermore, the packing straps connect and secure the two sub-sections of the spliced ​​cylinder together, facilitating disassembly.

[0007] Furthermore, an annular insertion pin is fixedly provided on the outer side of the opening at one end of the sealing cover. The annular insertion pin is inserted into the inner side of the body of the spliced ​​cylinder, so that the end face of the sealing cover is in contact with the end face of the spliced ​​cylinder.

[0008] Furthermore, the connection between the annular insert pin and the inner side of the spliced ​​cylindrical body adopts an interference fit with an interference amount of 3~5mm. The surface of the annular insert pin can also be additionally processed with anti-slip texture with a texture depth of 1~2mm to enhance the firmness of the connection and prevent the sealing cap from falling off.

[0009] Furthermore, an anti-detachment ring is fixedly provided on the outer side of the annular insertion pin. The anti-detachment ring is a ring with a semi-circular cross-section, and an annular groove for accommodating the anti-detachment ring is provided at the corresponding position on the body of the splicing cylinder.

[0010] Furthermore, when the closed cap is inserted into the splicing cylinder, the anti-detachment ring is squeezed and deformed, and gets stuck into the annular groove, using the elastic recovery force of the foam material to achieve the anti-detachment function.

[0011] Furthermore, the torsion bar spring is provided with a plurality of slender round rods around its outer periphery, and the outer surface of each slender round rod is respectively in contact with the rod body of the torsion bar spring and the inner wall of the spliced ​​cylinder, and the number of slender round rods is at least three.

[0012] Furthermore, the slender round rods serve to support the torsion bar spring, preventing it from swaying during transportation, and also provide a certain shock absorption and cushioning effect. Since multiple slender round rods work together from multiple angles to support the torsion bar spring and form a stable support effect, there is no need to use adhesive or other fixing methods to connect the slender round rods to the splicing cylinder.

[0013] Furthermore, the two end faces of the torsion bar spring are respectively connected to the inner wall surface of the hopper located at both ends, and the length of the slender round rod does not exceed the distance between the two annular insertion pins.

[0014] Furthermore, the two ends of the torsion bar spring are pressed against the inner wall of the hopper, thus clearing its horizontal displacement space.

[0015] Furthermore, the splicing cylinder, the sealing cap, and the slender cylindrical rod are all made of foam material.

[0016] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects:

[0017] 1. In this utility model, the sealing cap is inserted into the inner side of the end of the splicing cylinder with a large interference fit through an annular insertion pin. The anti-slip texture on the surface of the insertion pin generates strong frictional resistance and pull-out resistance, ensuring the tightness of the initial connection. The design of the anti-detachment ring and the annular groove forms a key secondary locking. Utilizing the elastic deformation and recovery characteristics of the foam material, the anti-detachment ring is deformed under pressure and then stuck into the groove, providing reliable mechanical locking. Even under bumpy or accidental pulling conditions, it can effectively prevent the sealing cap from accidentally falling off. The splicing cylinder is composed of sub-body parts, which are tied and fixed on the outside with packing straps, making the packaging cylinder itself easy to disassemble and assemble, greatly facilitating packaging operations, recycling after transportation, and replacement or maintenance of parts.

[0018] 2. In this utility model, multiple slender foam rods arranged in a ring form a uniform and stable multi-point support between the torsion bar spring body and the inner wall of the spliced ​​cylinder, which effectively suppresses the radial sway of the torsion bar spring during transportation and avoids deformation or damage to the rod body caused by collision or vibration. The splines at both ends of the torsion bar spring are completely contained in the cylinder of the closed cover, and its end face is tightly pressed against the inner wall of the cylinder, which completely eliminates the displacement space of the torsion bar spring along its axial direction, prevents it from moving during transportation, and especially protects the precision spline structure.

[0019] 3. In this utility model, the entire packaging structure is made of foam material, which has good elasticity and energy absorption characteristics. Combined with the internal support structure and limiting design, it can effectively absorb and disperse the impact and vibration energy generated during transportation, providing all-round buffer protection for the internal torsion bar spring. The slender round rod can achieve stable support by relying solely on the compressive force generated by its length and circumferential arrangement, without the need for adhesive or other methods to fix it to the cylinder wall. This not only simplifies the assembly process but also facilitates the removal of internal components during disassembly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is an exploded view of the structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0023] Figure 4 This is a partial structural diagram of the present invention.

[0024] In the diagram: 1-torsion bar spring, 2-jointed cylinder, 3-sealing cap, 4-packing strap, 5-slender round rod;

[0025] 101-Shaft, 102-Spline, 301-Cylinder, 302-Annular Insertion Pin, 303-Anti-detachment Ring, 304-Annular Groove. Detailed Implementation

[0026] 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.

[0027] Combination Figures 1 to 4 The torsion bar transport cylindrical packaging shown includes a torsion bar spring 1, a splicing cylinder 2 on the outside of the torsion bar spring 1, and a sealing cap 3 at both ends of the splicing cylinder 2. The sealing cap 3 has a chamber 301 inside the inner side of the sealing cap 3. The sealing cap 3 is inserted into the inner side of the body of the splicing cylinder 2. The rod body 101 of the torsion bar spring 1 is located inside the splicing cylinder 2, and the splines 102 at both ends are located inside the chamber 301. The outside of the splicing cylinder 2 is tied and fixed with packing straps 4.

[0028] The packing strap 4 connects and secures the two sub-bodies of the splicing cylinder 2 together, making disassembly easier.

[0029] An annular insertion pin 302 is fixedly provided on the outer side of the opening at one end of the sealing cover 3. The annular insertion pin 302 is inserted into the inner side of the cylinder body of the spliced ​​cylinder 2, so that the end face of the sealing cover 3 is in contact with the end face of the spliced ​​cylinder 2.

[0030] The connection between the annular insert pin 302 and the inner side of the spliced ​​cylindrical body 2 adopts an interference fit with an interference amount of 3~5mm. The surface of the annular insert pin 302 can also be additionally processed with anti-slip texture with a texture depth of 1~2mm to enhance the firmness of the connection and prevent the sealing cap from falling off.

[0031] An anti-detachment ring 303 is fixedly provided on the outside of the annular insertion pin 302. The anti-detachment ring 303 is a ring with a semi-circular cross-section. An annular groove 304 for accommodating the anti-detachment ring 303 is provided at the corresponding position of the splicing cylinder 2.

[0032] When the closed cover 3 is inserted into the splicing cylinder 2, the anti-detachment ring 303 is squeezed and deformed and gets stuck into the annular groove 304, using the elastic recovery force of the foam material to achieve the anti-detachment function.

[0033] The torsion bar spring 1 has several slender round rods 5 arranged around its outer periphery. The outer surface of each slender round rod 5 is in contact with the rod body 101 of the torsion bar spring 1 and the inner wall of the splicing cylinder 2. The number of slender round rods 5 is at least three.

[0034] The function of the slender round rod 5 is to support the torsion bar spring 1 and prevent the torsion bar spring 1 from shaking during transportation. It also plays a certain role in shock absorption and buffering. Since multiple slender round rods 5 work together from multiple angles to support the torsion bar spring 1 and form a stable support effect, it is not necessary to use adhesive or other fixing methods to connect the slender round rods 5 to the splicing cylinder 2.

[0035] The two ends of the torsion bar spring 1 are respectively connected to the inner wall of the hopper 301 located at both ends, and the length of the slender round rod 5 does not exceed the distance between the two annular insertion pins 302.

[0036] The two ends of the torsion bar spring 1 are pressed against the inner wall of the chamber 301, thereby clearing its horizontal displacement space.

[0037] The splicing cylinder 2, the sealing cap 3, and the slender cylindrical rod 5 are all made of foam material.

[0038] Working principle: In use, the torsion bar spring 1 is placed inside a foam cylinder 2 composed of multiple parts. The two ends of the cylinder are sealed with foam caps 3 with chambers 301. The caps 3 are connected and initially fixed by inserting the annular pins 302 on their outer edges into the inner side of the ends of the spliced ​​cylinder 2. The anti-detachment rings 303 on the caps 3 are deformed by pressure when inserted and then snap into the corresponding annular grooves 304 on the inner wall of the spliced ​​cylinder 2, forming a reliable anti-detachment lock by utilizing the elastic recovery force of the foam material. Multiple slender foam rods 5 are arranged around the rod body 101 of the torsion bar spring 1. Their outer ends abut against the inner wall of the spliced ​​cylinder 2, and their inner ends abut against the torsion bar body, forming multi-point support to effectively limit the radial sway of the torsion bar spring during transportation. The splines 102 at both ends of the torsion bar spring 1 extend into the chambers 301 of the caps 3, and their end faces are abutted by the inner wall of the chambers 301, limiting their axial displacement.

[0039] The entire internal structure, combined with the foam material itself, provides a shock-absorbing and cushioning effect. The spliced ​​cylinder 2 is composed of sub-body splicing, and the outside is tied and fixed with packing straps 4, which not only ensures the integrity of the cylinder, but also facilitates disassembly. The packing straps may also directly participate in fixing the spliced ​​sub-body.

[0040] 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.

[0041] 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 torsion bar transport cylindrical packaging body, comprising a torsion bar spring (1), characterized in that: The torsion bar spring (1) is provided with a splicing cylinder (2) on the outside. Both ends of the splicing cylinder (2) are provided with a sealing cap (3). The inner side of the sealing cap (3) is provided with a cylinder chamber (301). The sealing cap (3) is inserted into the inner side of the cylinder body of the splicing cylinder (2). The rod body (101) of the torsion bar spring (1) is located inside the splicing cylinder (2), and the splines (102) at both ends are located inside the cylinder chamber (301). The outside of the splicing cylinder (2) is tied and fixed with packing straps (4).

2. The torsion bar transport cylindrical packaging body according to claim 1, characterized in that: An annular insertion pin (302) is fixedly provided on the outer side of the opening at one end of the closed cover (3). The annular insertion pin (302) is inserted into the inner side of the body of the spliced ​​cylinder (2) and the end face of the closed cover (3) is connected to the end face of the spliced ​​cylinder (2).

3. The torsion bar transport cylindrical packaging body according to claim 2, characterized in that: An anti-detachment ring (303) is fixedly provided on the outside of the annular insertion pin (302). The anti-detachment ring (303) is a ring with a semi-circular cross-section. An annular groove (304) for accommodating the anti-detachment ring (303) is provided at the corresponding position of the body of the splicing cylinder (2).

4. The torsion bar transport cylindrical packaging body according to claim 3, characterized in that: The torsion bar spring (1) is provided with a number of slender round rods (5) around its outer periphery. The outer surface of each slender round rod (5) is connected to the rod body (101) of the torsion bar spring (1) and the inner wall of the spliced ​​cylinder (2). The number of slender round rods (5) is at least three.

5. The torsion bar transport cylindrical packaging body according to claim 4, characterized in that: The two ends of the torsion bar spring (1) are respectively connected to the inner wall of the hopper (301) located at both ends, and the length of the slender round rod (5) does not exceed the distance between the two annular insertion pins (302).

6. The torsion bar transport cylindrical packaging body according to claim 5, characterized in that: The splicing cylinder (2), the sealing cap (3), and the slender rod (5) are all made of foam material.

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