Abnormal sound prevention bolt for heavy goods shelf
By designing separate threaded sections and a sound-absorbing structure on the bolts of heavy-duty racks, and utilizing polyurethane (PU) material for sound absorption, the noise problem of heavy-duty rack bolts has been solved, achieving noise reduction and optimization of operation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING FASTENER LOVERS MFG CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-21
AI Technical Summary
Existing heavy-duty rack bolts are prone to generating continuous noise during frequent goods handling or forklift vibrations. The lack of effective damping and noise reduction technology leads to high maintenance costs and worker fatigue.
Design a noise-proof bolt for heavy-duty shelving. The bolt has threaded sections at both ends of the non-threaded sections. The non-threaded sections have a filling cavity and are connected to a filling column. The bolt ring is screwed into the threaded section. The bolt end has a screw cavity. The sound-absorbing plate, ring and cover are made of wear-resistant, shock-absorbing and sound-absorbing polyurethane (PU) material. The filling cavity is filled with sound-absorbing cotton to achieve noise absorption.
It effectively reduces bolt noise, prevents abnormal sounds, reduces maintenance costs, and improves the comfort of the working environment.
Smart Images
Figure CN224149958U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-noise bolt technology, specifically an anti-noise bolt for heavy-duty shelving. Background Technology
[0002] In existing technologies, anti-noise bolts reduce high-frequency collisions and sliding friction on metal contact surfaces under vibration or load fluctuations through damping structures (such as built-in rubber / polyurethane elastomers or pre-applied sound-absorbing coatings) or friction control designs (such as self-lubricating layers on locking washers or pre-coated micro-particle friction reducers on threads), thereby suppressing mechanical noise. They are suitable for scenarios with high requirements for quietness, such as automotive suspensions, precision instruments, and shelving systems.
[0003] Existing heavy-duty rack bolts rely heavily on basic anti-loosening designs (such as spring washers) and lack damping and noise reduction technologies to address abnormal noises. Rigid metal-to-metal contact can easily generate continuous noise during frequent cargo handling or forklift vibrations, exacerbating worker fatigue and disrupting the storage environment. Therefore, additional sound insulation accessories or frequent application of lubricant are required, significantly increasing maintenance costs and efficiency pressures. There is room for improvement. Utility Model Content
[0004] The purpose of this utility model is to provide a noise-proof bolt for heavy-duty shelving, so as to solve the problems mentioned in the background art and overcome its technical defects.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a heavy-duty anti-noise bolt for shelves, including a bolt and a threaded ring. The bolt includes a non-threaded section and a threaded section. The threaded section is located at both ends of the non-threaded section. A filling cavity is opened inside the non-threaded section. A filling post is fixedly connected to the outer periphery of the non-threaded section. The threaded ring is screwed into the threaded section.
[0006] As a further embodiment of this utility model: a noise-proof bolt for heavy-duty shelves, wherein the bolt ring includes a ring body, an upper sound-absorbing plate is movably connected to one side of the ring body, and a lower sound-absorbing ring is movably connected to the side of the ring body away from the upper sound-absorbing plate.
[0007] As a further embodiment of this utility model: a noise-proof bolt for heavy-duty shelves, which also includes a washer, wherein the washer is movably connected to the threaded ring.
[0008] As a further embodiment of this utility model: a noise-proof bolt for heavy-duty shelving, which also includes a sealing screw, wherein the sealing screw is screwed into the bolt.
[0009] As a further improvement of this utility model: a noise-proof bolt for heavy-duty shelves, wherein a sound-absorbing cover is movably connected to one side of the ring body.
[0010] As a further embodiment of this utility model: a noise-proof bolt for heavy-duty shelves, wherein one end of the bolt has a screw cavity, and the closed screw is screwed into the screw cavity.
[0011] As a further embodiment of this utility model: a heavy-duty shelf anti-noise bolt, wherein the upper sound-absorbing plate, the lower sound-absorbing ring and the filling column are all made of wear-resistant, shock-absorbing and sound-absorbing polyurethane (PU).
[0012] As a further improvement of this utility model: a noise-proof bolt for heavy-duty shelves, wherein the filling cavity is filled with sound-absorbing cotton.
[0013] Compared with the prior art, the beneficial effects of this utility model include:
[0014] Because the threaded sections are located at both ends of the non-threaded sections, and the non-threaded sections have internal filling cavities, and filling columns are fixedly connected to the outer periphery of the non-threaded sections, the threaded ring is screwed into the threaded sections, the sealing screw is screwed into the bolt, and one end of the bolt has a screw cavity, which is screwed into the sealing screw. The upper sound-absorbing plate, the lower sound-absorbing ring, and the filling columns are all made of wear-resistant, shock-absorbing, and sound-absorbing polyurethane (PU). The filling cavities are filled with sound-absorbing cotton. Therefore, when the bolt is in use, it can absorb the noise generated by the vibration of the bolt and the external connection, reduce the noise generated by the bolt itself, and prevent abnormal noise.
[0015] Since an upper sound-absorbing plate is movably connected to one side of the ring body, a lower sound-absorbing ring is movably connected to the side of the ring body away from the upper sound-absorbing plate, and a sound-absorbing cover is movably connected to one side of the ring body, the upper sound-absorbing plate, the lower sound-absorbing ring, and the filling column are all made of wear-resistant, shock-absorbing, and sound-absorbing polyurethane (PU). Similarly, the screw ring can absorb the noise from the vibration of the screw ring and the external connection, further preventing abnormal noise. Attached Figure Description
[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:
[0017] Figure 1 The schematic diagram shows an overall structural schematic diagram according to one embodiment of the present invention;
[0018] Figure 2 The schematic diagram shows an overall cross-sectional view according to one embodiment of the present invention;
[0019] Figure 3 The diagram schematically shows a cross-sectional view of a bolt according to one embodiment of the present invention;
[0020] Figure 4 The schematic diagram shows one of the disassembled structural diagrams of a spiral ring according to one embodiment of the present invention;
[0021] Figure 5 The diagram illustrates a second schematic representation of the disassembled structure of a screw ring according to one embodiment of the present invention.
[0022] The following are the labels in the diagram: 1. Bolt; 11. Non-threaded section; 12. Threaded section; 13. Filling cavity; 14. Screw cavity; 2. Threaded ring; 21. Ring body; 22. Upper sound-absorbing plate; 23. Sound-absorbing cover; 24. Lower sound-absorbing ring; 3. Washer; 4. Filling column; 5. Sealing screw. Detailed Implementation
[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0024] According to one embodiment of the present invention, in conjunction with the accompanying drawings, a noise-proof bolt for heavy-duty shelving is shown, comprising a bolt 1 and a threaded ring 2. The bolt 1 includes a non-threaded section 11 and a threaded section 12. The threaded section 12 is disposed at both ends of the non-threaded section 11. A filling cavity 13 is provided inside the non-threaded section 11. A filling post 4 is fixedly connected to the outer periphery of the non-threaded section 11. The threaded ring 2 is screwed into the threaded section 12.
[0025] Since the threaded section 12 is located at both ends of the non-threaded section 11, the non-threaded section 11 has a filling cavity 13 inside, and a filling column 4 is fixedly connected to the outer periphery of the non-threaded section 11. The screw ring 2 is screwed to the threaded section 12, the sealing screw 5 is screwed to the bolt 1, and one end of the bolt 1 has a screw cavity 14. The sealing screw 5 is screwed to the screw cavity 14. The upper sound-absorbing plate 22, the lower sound-absorbing ring 24, and the filling column 4 are all made of wear-resistant, shock-absorbing, and sound-absorbing polyurethane (PU). The filling cavity 13 is filled with sound-absorbing cotton. Therefore, when the bolt is in use, the bolt 1 can absorb the noise generated by the vibration of the bolt and the external connection, reduce the noise generated by the bolt itself, and prevent abnormal noise.
[0026] As a further embodiment of this utility model: a noise-proof bolt for heavy-duty shelves, wherein the bolt ring 2 includes a ring body 21, an upper sound-absorbing plate 22 is movably connected to one side of the ring body 21, and a lower sound-absorbing ring 24 is movably connected to the side of the ring body 21 away from the upper sound-absorbing plate 22.
[0027] Since an upper sound-absorbing plate 22 is movably connected to one side of the ring body 21, a lower sound-absorbing ring 24 is movably connected to the side of the ring body 21 away from the upper sound-absorbing plate 22, and a sound-absorbing cover 23 is movably connected to one side of the ring body 21, the upper sound-absorbing plate 22, the lower sound-absorbing ring 24 and the filling column 4 are all made of wear-resistant, shock-absorbing and sound-absorbing polyurethane (PU). Similarly, the screw ring 2 can absorb the noise from the vibration of the screw ring 2 and the external connection, further preventing abnormal noise.
[0028] As a further embodiment of this utility model: a noise-proof bolt for heavy-duty shelves, which also includes a washer 3, wherein the washer 3 is movably connected to the threaded ring 2.
[0029] As a further embodiment of this utility model: a heavy-duty shelf anti-noise bolt, which also includes a sealing screw 5, wherein the sealing screw 5 is screwed into the bolt 1.
[0030] As a further improvement of this utility model: a noise-proof bolt for heavy-duty shelves, wherein a sound-absorbing cover 23 is movably connected to one side of the ring 21.
[0031] As a further embodiment of this utility model: a noise-proof bolt for heavy-duty shelves, wherein one end of the bolt 1 has a screw cavity 14, and the closed screw 5 is screwed into the screw cavity 14.
[0032] As a further embodiment of this utility model: a heavy-duty shelf anti-noise bolt, wherein the upper sound-absorbing plate 22, the lower sound-absorbing ring 24 and the filling column 4 are all made of wear-resistant, shock-absorbing and sound-absorbing polyurethane (PU).
[0033] As a further improvement of this utility model: a noise-proof bolt for heavy-duty shelves, wherein the filling cavity 13 is filled with sound-absorbing cotton.
[0034] Working principle: Since the threaded section 12 is located at both ends of the non-threaded section 11, the non-threaded section 11 has a filling cavity 13 inside, and a filling column 4 is fixedly connected to the outer periphery of the non-threaded section 11. The screw ring 2 is screwed to the threaded section 12, and the sealing screw 5 is screwed to the bolt 1. One end of the bolt 1 has a screw cavity 14, and the sealing screw 5 is screwed to the screw cavity 14. The upper sound-absorbing plate 22, the lower sound-absorbing ring 24, and the filling column 4 are all made of wear-resistant, shock-absorbing, and sound-absorbing polyurethane (PU). The filling cavity 13 is filled with sound-absorbing cotton. Therefore, when the bolt is in use, the bolt 1 can absorb the noise generated by the vibration of the bolt and the external connection, reduce the noise generated by the bolt itself, and prevent abnormal noise.
[0035] Since an upper sound-absorbing plate 22 is movably connected to one side of the ring body 21, a lower sound-absorbing ring 24 is movably connected to the side of the ring body 21 away from the upper sound-absorbing plate 22, and a sound-absorbing cover 23 is movably connected to one side of the ring body 21, the upper sound-absorbing plate 22, the lower sound-absorbing ring 24 and the filling column 4 are all made of wear-resistant, shock-absorbing and sound-absorbing polyurethane (PU). Similarly, the screw ring 2 can absorb the noise from the vibration of the screw ring 2 and the external connection, further preventing abnormal noise.
[0036] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A heavy-duty shelf anti-rattle bolt characterized by, The device includes a bolt (1) and a threaded ring (2). The bolt (1) includes a non-threaded section (11) and a threaded section (12). The threaded section (12) is located at both ends of the non-threaded section (11). A filling cavity (13) is provided inside the non-threaded section (11). A filling post (4) is fixedly connected to the outer periphery of the non-threaded section (11). The threaded ring (2) is screwed into the threaded section (12).
2. The anti-rattle bolt for heavy duty shelving of claim 1, wherein, The spiral ring (2) includes a ring body (21), one side of which is movably connected to an upper sound-absorbing disk (22), and the other side of the ring body (21) away from the upper sound-absorbing disk (22) is movably connected to a lower sound-absorbing ring (24).
3. The anti-rattle bolt for heavy duty shelving of claim 2, wherein, It also includes a gasket (3), which is movably connected to the screw ring (2).
4. The anti-rattle bolt for heavy duty shelving of claim 3, wherein, It also includes a sealing screw (5), which is screwed into the bolt (1).
5. The anti-rattle bolt for heavy duty shelving of claim 4, wherein, A sound-absorbing cover (23) is movably connected to one side of the ring (21).
6. The anti-rattle bolt for heavy duty shelving of claim 5, wherein, One end of the bolt (1) has a screw cavity (14), and the sealing screw (5) is screwed into the screw cavity (14).
7. The anti-rattle bolt for heavy duty shelving of claim 6, wherein, The upper sound-absorbing plate (22), the lower sound-absorbing ring (24), and the filling column (4) are all made of wear-resistant, shock-absorbing, and sound-absorbing polyurethane (PU).
8. The anti-rattle bolt for heavy duty shelving of claim 7, wherein, The cavity (13) is filled with sound-absorbing cotton.