CN112455151A - Inflation-free solid tire for heavy press - Google Patents
Inflation-free solid tire for heavy press Download PDFInfo
- Publication number
- CN112455151A CN112455151A CN202011456369.5A CN202011456369A CN112455151A CN 112455151 A CN112455151 A CN 112455151A CN 202011456369 A CN202011456369 A CN 202011456369A CN 112455151 A CN112455151 A CN 112455151A
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- Prior art keywords
- damping
- support rod
- inflation
- rim
- rectangular
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B9/00—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces
- B60B9/02—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces using springs resiliently mounted bicycle rims
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B9/00—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces
- B60B9/02—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces using springs resiliently mounted bicycle rims
- B60B9/06—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces using springs resiliently mounted bicycle rims in helical form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B9/00—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces
- B60B9/26—Wheels of high resiliency, e.g. with conical interacting pressure-surfaces comprising resilient spokes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C7/00—Non-inflatable or solid tyres
Abstract
The invention discloses an inflation-free solid tire for a heavy press, which adopts the technical scheme that: the damping piece comprises a first support rod, a second support rod, a damping seat, a second damping spring, a first damping spring, an internal threaded hole, a first insertion hole and a second insertion hole, wherein a rectangular groove is formed in the solid tire, rectangular convex strips, convex blocks and semicircular bulges are arranged on the outer surface of the solid tire, the semicircular bulges are positioned on two sides of the rectangular convex strips and distributed in a staggered mode, and a first staggered surface is formed between each convex block and the corresponding rectangular groove. The convex blocks, the circular bulges and the rectangular convex strips on the surface of the solid tire also deform, so that the damping effect is further enhanced; damping spring two and damping spring one among the shock attenuation piece are effectual to carry out the shock attenuation to the rim, and the damping ring not only plays the shock attenuation effect, still effectually supports the rim for the rim is more durable, and compressive capacity is better.
Description
Technical Field
The invention relates to the technical field of inflation-free solid tires, in particular to an inflation-free solid tire for a heavy press.
Background
The non-pneumatic tire is a tire which realizes the shock absorption and buffering performance without air pressure, the pneumatic tire is sealed by rubber to form air with pressure, when the air is compressed, air molecules collide with a container wall more violently to cause the air pressure to rise, macroscopic elasticity is formed, the excellent buffering performance and the low rolling resistance of the pneumatic tire can not be surpassed by other tires so far, the non-pneumatic tire is a tire which is not used for inflation, the supporting and buffering performance is realized by only utilizing the material and the structure of the tire without the help of the air, and the tire is a solid rubber tire which has the production history of over a hundred years. The tyre is mainly characterized in that the tyre body has large weight, poor elasticity, large rolling resistance and large bearing capacity, is suitable for large vehicles with low moving speed and higher load requirement, is an open structure tyre, adopts polyurethane material as raw material, is manufactured by utilizing open structure and tubular staggered three-dimensional shock absorption, and has the advantages of attractive appearance, light weight and no high temperature resistance when the tyre is driven at low speed.
In order to improve the elasticity and toughness of the existing inflation-free solid tire, a rubber additive is usually required to be added into rubber for manufacturing the tire, the most common additive is a vulcanizing agent, but the existing inflation-free solid tire has poor damping effect and cannot achieve good damping effect; or the shape and the structure of the spoke are designed to achieve the shock absorption function of the tire, however, the spoke is a rigid structure, the shock absorption amplitude is small, and the shock absorption effect is not obvious.
Therefore, it is necessary to develop a non-pneumatic solid tire for a heavy press.
Disclosure of Invention
Therefore, the invention provides an inflation-free solid tire for a heavy press, the shock absorption piece is arranged between a wheel hub and a wheel rim to replace the traditional wheel spoke, when the tire vibrates, a first supporting rod and a second supporting rod respectively compress a first shock absorption spring and a second shock absorption spring, the springs are utilized to achieve shock absorption with larger amplitude, and the problem of poor shock absorption effect of the traditional tire is solved.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides an exempt from to aerify solid tyre for heavy press, includes solid tyre, wheel hub and damping piece, the damping piece includes branch one, branch two, shock attenuation seat, damping spring two, damping spring one, internal thread hole, jack one and jack two, the last rectangular channel that has seted up of solid tyre, the solid tyre surface is equipped with rectangle protruding strip, protruding piece and semi-circular arch, semi-circular arch is located the crisscross distribution in rectangle protruding strip both sides, protruding piece with form first crisscross face between the rectangular channel, semi-circular arch with form the second crisscross face between the rectangular channel, both ends integrated into one piece is equipped with the pentaprism around the wheel hub, wheel hub outer wall fixed connection bracing piece, the bracing piece is kept away from the one end fixed connection solid ring that is wheel hub, wheel hub inner wall threaded connection the branch one, a branch outer wall cup joints damping spring one, the outer wall of the top end of the first supporting rod is sleeved with a shock absorption seat, the inner wall of the upper portion of the shock absorption seat is sleeved with the second supporting rod, the outer wall of the second supporting rod is sleeved with a shock absorption spring II, the top of the second supporting rod is inserted into a rim, slots are formed in the rim, inner threaded holes are formed in the top of the second supporting rod, the outer wall of the pentagonal prism is fixedly connected with a shock absorption ring, and the shock absorption seat is welded on the fixing.
Preferably, the rectangular grooves are provided in two groups, and the two groups of rectangular grooves are arranged in a central symmetry manner about the solid tire.
Preferably, the convex blocks, the semicircular bulges and the rectangular convex strips are integrally formed with the solid tire through pouring of a mold, and the tops of the two support rods are fixedly connected with the rim through bolts.
Preferably, the support rods are equidistantly distributed on the circumference of the inner wall of the fixing ring.
Preferably, the outer wall of the bottom of the supporting rod is provided with an external thread, the hub is provided with a threaded hole matched with the external thread of the bottom of the supporting rod, the upper end of the shock absorption seat is provided with a first insertion hole, and the lower end of the shock absorption seat is provided with a second insertion hole.
Preferably, the ratio of the major axis to the minor axis of the damper ring is set to 9/7-11/7.
Preferably, the rectangular convex strip is located in the middle of the solid tyre, and the convex blocks at two ends of the rectangular convex strip are distributed in a staggered mode.
Preferably, a through hole is formed in the shock absorption seat, a third insertion hole is formed in the first support rod, a third shock absorption spring is arranged in the third insertion hole, and the inner wall of the third insertion hole is connected with the second support rod in an inserted mode.
The invention has the beneficial effects that:
placing a wheel hub in the right center of a wheel rim, sleeving a damping spring I on a support rod I, connecting one end of the support rod I with an external thread to the wheel hub in a threaded manner, sleeving a damping spring II on a support rod II, sleeving a damping seat on the support rod II through a jack II, inserting the support rod II on the damping seat through the jack I, reversely rotating the support rod II, ejecting a damping piece upwards by the support rod II, ejecting the support rod upwards until one end of the support rod II with an internal thread hole is inserted into and tightly attached to the inner wall of the jack on the wheel rim by the damping piece, fixing the support rod II and the wheel rim by using the thread, and connecting the damping seat and a fixing ring by using a bolt; the installation is simple, the installation of the damping piece can be completed only by installing the steps, and the use is convenient;
in the rolling process of the tire, the rim is extruded, the rim transmits the pressurizing force to the second support rod, the second support rod moves downwards to enable the second damping spring to be compressed, meanwhile, the second support rod moves inwards to the second insertion hole, the first damping spring is compressed, the pressurizing force is converted into elastic potential energy of the second damping spring and the first damping spring, the damping effect is achieved, the damping ring deforms under the extrusion of the rim, the rim is damped, and the convex blocks, the circular bulges and the rectangular convex strips on the surface of the solid tire also deform, so that the damping effect is further enhanced; the second damping spring and the first damping spring in the damping piece effectively damp the rim, and the damping ring not only has a damping effect, but also effectively supports the rim, so that the rim is firmer and has better pressure resistance;
when the shock-absorbing piece is disassembled, the bolts for connecting the second supporting rod and the rim are disassembled, the first supporting rod is rotated, the first supporting rod moves towards the threaded hole of the hub to the second supporting rod to be separated from the slot, the bolts for connecting the fixing ring and the shock-absorbing seat are disassembled, the first supporting rod is taken out, and the shock-absorbing piece can be rapidly disassembled only by disassembling a small number of bolts, so that the shock-absorbing piece is convenient to replace.
Drawings
Fig. 1 is a schematic structural diagram provided in embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a shock-absorbing member provided in embodiment 1 of the present invention;
FIG. 3 is a schematic view of the present invention with a shock absorbing ring removed, according to example 1;
FIG. 4 is a sectional view of a shock-absorbing member provided in embodiment 1 of the present invention;
FIG. 5 is a schematic view of the shock absorbing member of example 1 of the present invention, with the shock absorbing member removed;
FIG. 6 is a top view of a solid tire provided in example 1 of the present invention;
fig. 7 is a structural schematic of a shock absorbing member provided in embodiment 2 of the present invention.
In the figure: the damping device comprises a solid tire 1, a rim 2, a slot 3, a damping piece 4, a fixing ring 5, a damping ring 6, a support rod 7, a pentagonal prism 8, a hub 9, a convex block 11, a rectangular groove 12, a semicircular bulge 13, a rectangular convex strip 14, a damping spring III 40, a damping seat 41, a through hole 411, a support rod I42, a jack III 421, a support rod II 43, a damping spring II 44, a damping spring I45, an internal threaded hole 46, a jack I47 and a jack II 48.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
referring to the attached drawings 1-6 in the specification, the non-inflatable solid tire for a heavy press in the embodiment comprises a solid tire 1, a hub 9 and a damping piece 4, wherein the damping piece 4 comprises a first supporting rod 42, a second supporting rod 43, a damping seat 41, a second damping spring 44, a first damping spring 45, an internal threaded hole 46, a first insertion hole 47 and a second insertion hole 48, a rectangular groove 12 is formed in the solid tire 1, a rectangular raised strip 14, a raised block 11 and a semicircular bulge 13 are arranged on the outer surface of the solid tire 1, the semicircular bulges 13 are positioned on two sides of the rectangular raised strip 14 in a staggered manner, a first staggered surface 15 is formed between the raised block 11 and the rectangular groove 12, a second staggered surface 16 is formed between the semicircular bulge 13 and the rectangular groove 12, pentagonal prisms 8 are integrally formed at the front end and the rear end of the hub 9, a supporting rod 7 is fixedly connected to the outer wall of the hub 9, the supporting rod 7 is far away from one end of a wheel hub 9 and is fixedly connected with a fixing ring 5, the inner wall of the wheel hub 9 is in threaded connection with a first supporting rod 42, the outer wall of the first supporting rod 42 is sleeved with a first damping spring 45, the outer wall of the top end of the first supporting rod 42 is sleeved with a damping seat 41, the inner wall above the damping seat 41 is sleeved with a second supporting rod 43, the outer wall of the second supporting rod 43 is sleeved with a second damping spring 44, the top of the second supporting rod 43 is inserted into a wheel rim 2, a slot 3 is formed in the wheel rim 2, the top of the second supporting rod 43 is provided with an internal threaded hole 46, the outer wall of the pentagonal prism; the slot 3 is used for wrapping the second support rod 43, so that the rim 2 is tightly connected with the second support rod 43, the damping piece 4 is used for damping, the damping ring 6 is used for buffering and supporting the extrusion force of the rim 2, the damping effect is achieved, the support rod 7 is used for supporting the fixing ring 5, the fixing ring 5 can support the damping seat 41, the pentagonal prism 8 and the hub 9 are integrally cast and formed, the damping ring 6 is used for supporting, the damping ring 6 can better support the rim 2, and the rim 2 can be better damped; the convex blocks 11, the semicircular bulges 13 and the rectangular convex strips 14 are used for improving the ground gripping performance of the solid tire 1, and the anti-slip damping spring II 44 and the damping spring I45 are used for damping;
further, two groups of rectangular grooves 12 are arranged, and the two groups of rectangular grooves 12 are arranged in a central symmetry manner about the solid tire 1; rectangular channel 12's effect is the area of contact that reduces solid tyre 1 and ground to improve solid tyre 1's ground gripping performance, reduce solid tyre 1 bottom simultaneously and warp more easily, improve the shock attenuation performance that reduces solid tyre 1, and improved the heat dispersion that reduces solid tyre 1.
Further, protruding piece 11, semicircular bulge 13 and rectangle protruding strip 14 with solid tyre 1 pours integrated into one piece through the mould, two 43 tops of branch pass through the bolt with rim 2 fixed connection, and two 43 branches are fixed through the bolt after pegging graft with rim 2 for the connection structure that two 43 branches are connected with rim 2 is closely just convenient for dismantle and change.
Further, the support rods 7 are distributed on the circumference of the inner wall of the fixing ring 5 at equal intervals; the supporting rods 7 are used for supporting the fixing ring 5, and the supporting rods distributed at equal intervals can improve the appearance.
Furthermore, the outer wall of the bottom of the first supporting rod 42 is provided with an external thread, the hub 9 is provided with a threaded hole matched with the external thread of the bottom of the first supporting rod 42, the upper end of the shock absorption seat 41 is provided with a first insertion hole 47, and the lower end of the shock absorption seat 41 is provided with a second insertion hole 48; the first support rod 42 is in threaded connection with the first support rod 42, and supporting and replacement are convenient.
Further, the ratio of the major axis to the minor axis of the damping ring 6 is set to 9/7-11/7, preferably 10/7, and the elliptical ring with the ratio of the major axis to the minor axis of 10/7 has high pressure resistance, so that the damping ring 6 not only has good damping effect, but also can well support the rim 2 and prevent the rim 2 from being crushed.
Further, the rectangular convex strip 14 is positioned in the middle of the solid tire 1, and the convex blocks 11 at two ends of the rectangular convex strip 14 are distributed in a staggered manner; the raised blocks 11 distributed in a staggered manner improve the ground gripping performance of the solid tire 1 to achieve an anti-skid effect, and enable the bottom of the solid tire 1 to be larger in deformation amplitude to further enhance the shock absorption performance of the solid tire 1.
The implementation scenario is specifically as follows:
placing a hub 9 in the right center of a rim 2, sleeving a first damping spring 45 on a first support rod 42, connecting one end of the first support rod 42 with an external thread to the hub 9 through a thread, sleeving a second damping spring 44 on a second support rod 43, sleeving a damping seat 41 on the second support rod 43 through a second insertion hole 48, inserting the second support rod 43 on the damping seat 41 through a first insertion hole 47, reversely rotating the second support rod 43, upwards ejecting a damping piece 4 through the second support rod 43, upwards ejecting the second support rod 43 until one end of the second support rod 43 containing an internal thread hole 46 is inserted and tightly attached to the inner wall of the insertion hole 3 on the rim 2 through the damping piece 4, fixing the second support rod 43 and the rim 2 through threads, and connecting the damping seat 41 with a fixing ring 5 through bolts; during the rolling process of the tire, the rim 2 is extruded, the rim 2 transmits the pressure to the second support rod 43, the second support rod 43 moves downwards to enable the second damping spring 44 to be compressed, meanwhile, the first support rod 42 moves towards the second insertion hole 48, the first damping spring 45 is compressed, the extrusion force is converted into the elastic potential energy of the second damping spring 44 and the first damping spring 45, the damping effect is achieved, the damping ring 6 deforms under the extrusion of the rim 2, the rim 2 is damped, and the convex blocks 11, the circular bulges 13 and the rectangular convex strips 14 on the surface of the solid tire 1 also deform, and the damping effect is further enhanced; when the shock absorbing piece 4 is removed, the bolts connecting the second support rod 43 and the rim 2 are detached, the first support rod 42 is rotated, the first support rod 42 moves towards the threaded hole of the hub 9 until the second support rod 43 can be separated from the slot 3, the bolts connecting the fixed ring 5 and the shock absorbing seat 41 are detached, and the first support rod 42 is taken out.
Example 2:
referring to the attached fig. 7 of the specification, unlike embodiment 1: a through hole 411 is formed in the shock absorption seat 41, a third insertion hole 421 is formed in the first support rod 42, a shock absorption spring third 40 is arranged in the third insertion hole 421, and the inner wall of the third insertion hole 411 is inserted into the second support rod 43;
the implementation scenario is specifically as follows:
compared with the embodiment 1, the wheel hub 9 is placed in the right center of the wheel rim 2, the first damping spring 45 is sleeved on the first support rod 42, one end of the first support rod 42 with the external thread is connected to the wheel hub 9 through the thread, the second damping spring 44 is sleeved on the second support rod 43, the damping seat 41 is sleeved on the second support rod 43 through the through hole 411, the second support rod 43 is inserted into the first support rod 42 through the third insertion hole 421 on the first support rod 42, the second support rod 43 is pulled outwards to the top of the second support rod 43 and is pushed into the insertion groove 3, the second support rod 43 is fixed with the wheel rim 2 through the thread, and the damping seat 41 is connected with the fixing ring 5 through the bolt; during the rolling process of the tire, the rim 2 is extruded, the rim 2 transmits the pressure to the second support rod 43, the second support rod 43 moves downwards to enable the second damping spring 44 to be compressed, the bottom of the second support rod 43 compresses the third damping spring 40 to enable the third damping spring 40 to deform, the first support rod 42 moves towards the second insertion hole 48, the first damping spring 45 is compressed, the extrusion force is converted into the elastic potential energy of the second damping spring 44, the first damping spring 45 and the third damping spring 40, the damping effect is achieved, the damping ring 6 deforms under the extrusion of the rim 2 to damp the rim 2, and the convex blocks 11, the circular bulges 13 and the rectangular convex strips 14 on the surface of the solid tire 1 also deform to further enhance the damping effect; when the shock absorbing piece 4 is removed, the bolts connecting the second support rod 43 and the rim 2 are detached, the first support rod 42 is rotated, the first support rod 42 moves towards the threaded hole of the hub 9 until the second support rod 43 can be separated from the slot 3, the bolts connecting the fixed ring 5 and the shock absorbing seat 41 are detached, and the first support rod 42 is taken out.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (8)
1. An inflation-free solid tyre for a heavy press, comprising a solid tyre (1), a hub (9) and a shock-absorbing element (4), characterized in that: the shock absorption piece (4) comprises a first support rod (42), a second support rod (43), a shock absorption seat (41), a second shock absorption spring (44), a first shock absorption spring (45), an internal threaded hole (46), a first jack (47) and a second jack (48), a rectangular groove (12) is formed in the solid tire (1), rectangular convex strips (14), convex blocks (11) and semicircular bulges (13) are arranged on the outer surface of the solid tire (1), the two sides of each rectangular convex strip (14) are distributed in a staggered mode, first staggered surfaces (15) are formed between the convex blocks (11) and the rectangular groove (12), second staggered surfaces (16) are formed between the semicircular bulges (13) and the rectangular groove (12), pentagonal prisms (8) are integrally formed at the front end and the rear end of the wheel hub (9), and the outer wall of the wheel hub (9) is fixedly connected with the support rod (7), the utility model discloses a shock absorber, including bracing piece (7), wheel hub (9), damping seat (41), shock attenuation seat (41), supporting rod (7) keep away from to be the solid fixed ring of one end fixed connection (5) of wheel hub (9), wheel hub (9) inner wall threaded connection branch (42), damping spring (45) are cup jointed to branch (42) outer wall, damping seat (41) are cup jointed to branch (42) top outer wall, damping spring (44) are cup jointed to branch (43) two outer walls, branch two (43) top grafting rim (2), slot (3) have been seted up on rim (2), internal thread hole (46) have been seted up at branch two (43) tops, pentaprism (8) outer wall fixed connection damping ring (6), damping seat (41) welding is in gu on fixed ring (5).
2. An inflation-free solid tyre for heavy presses as claimed in claim 1, wherein: the rectangular grooves (12) are provided with two groups, and the rectangular grooves (12) are arranged symmetrically with respect to the center of the solid tire (1).
3. An inflation-free solid tyre for heavy presses as claimed in claim 1, wherein: the solid tyre is characterized in that the convex blocks (11), the semicircular bulges (13) and the rectangular convex strips (14) are integrally formed with the solid tyre (1) through pouring of a mould, and the tops of the second support rods (43) are fixedly connected with the rim (2) through bolts.
4. An inflation-free solid tyre for heavy presses as claimed in claim 1, wherein: the supporting rods (7) are distributed on the circumference of the inner wall of the fixing ring (5) at equal intervals.
5. An inflation-free solid tyre for heavy presses as claimed in claim 1, wherein: the outer wall of the bottom of the first support rod (42) is provided with an external thread, a threaded hole matched with the external thread of the bottom of the first support rod (42) is formed in the hub (9), a first insertion hole (47) is formed in the upper end of the damping seat (41), and a second insertion hole (48) is formed in the lower end of the damping seat (41).
6. An inflation-free solid tyre for heavy presses as claimed in claim 1, wherein: the ratio of the long axis to the short axis of the shock absorbing ring (6) is set to be 9/7-11/7.
7. An inflation-free solid tyre for heavy presses as claimed in claim 1, wherein: the rectangular convex strip (14) is positioned in the middle of the solid tire (1), and the convex blocks (11) at two ends of the rectangular convex strip (14) are distributed in a staggered mode.
8. An inflation-free solid tyre for heavy presses as claimed in claim 1, wherein: the shock absorption seat is characterized in that a through hole (411) is formed in the shock absorption seat (41), a third insertion hole (421) is formed in the first support rod (42), a shock absorption spring (40) is arranged in the third insertion hole (411), and the inner wall of the third insertion hole (411) is connected with the second support rod (43) in an inserted mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011456369.5A CN112455151A (en) | 2020-12-11 | 2020-12-11 | Inflation-free solid tire for heavy press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011456369.5A CN112455151A (en) | 2020-12-11 | 2020-12-11 | Inflation-free solid tire for heavy press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112455151A true CN112455151A (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011456369.5A Pending CN112455151A (en) | 2020-12-11 | 2020-12-11 | Inflation-free solid tire for heavy press |
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| CN (1) | CN112455151A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113679201A (en) * | 2021-08-27 | 2021-11-23 | 芜湖集拓实心胎有限公司 | Environment-friendly office furniture spring cushion rubber part |
| CN116238270A (en) * | 2023-05-10 | 2023-06-09 | 江苏金箭车业制造有限公司 | Electric bicycle shock attenuation wheel structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113679201A (en) * | 2021-08-27 | 2021-11-23 | 芜湖集拓实心胎有限公司 | Environment-friendly office furniture spring cushion rubber part |
| CN116238270A (en) * | 2023-05-10 | 2023-06-09 | 江苏金箭车业制造有限公司 | Electric bicycle shock attenuation wheel structure |
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