Closed dustproof electric bicycle rear shock absorber
By using a combination of internal thread cap, magnetic ring, rubber elastic ring and rubber dust cover in the rear shock absorber of electric bicycle, the problem of dust intrusion is solved, and the functions of sealing and dust prevention and information storage and reading are realized, which improves the convenience of use and maintenance efficiency.
Patent Information
- Application Number
- CN202520325308.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing electric bicycle rear shock absorbers are easily intruded by dust and mud during use, lacking a sealed dustproof function, which makes cleaning inconvenient.
A closed, dustproof rear shock absorber for electric bicycles was designed, employing a combination structure of an internally threaded cap, a magnetic ring, a rubber elastic ring, and a rubber dust cover. The threaded connection and magnetic ring enhance the robustness, while the rubber ring secures the hydraulic inner rod to prevent dust from entering. Simultaneously, an RFID chip slot and a dust cover are provided to protect the chip, enabling information storage and reading functions.
It achieves a sealed and dustproof effect, preventing dust and moisture from entering, facilitating information storage and reading, and allowing for easy replacement and disassembly of the connecting ring, thus improving ease of use and maintenance efficiency.
Smart Images
Figure CN223676886U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to shock absorber technical field, concretely is a kind of closed dustproof type electric bicycle rear shock absorber. BACKGROUND
[0002] Electric bicycle refers to auxiliary energy source with battery, on the basis of ordinary bicycle, installation of motor, controller, battery, handlebar, brake handle and display instrument system operating components and traffic tools, in order to enhance comfort, generally install two groups of rear shock absorber, reasonable rear shock absorber adjustment not only can make cycling more stable and comfortable, but also can enhance the control performance of vehicle. Electric vehicle rear shock absorber is mainly hydraulic shock absorber, shock energy is absorbed by the flow of liquid, with good shock-absorbing effect and adaptability.
[0003] The rear shock absorber of the electric bicycle commonly seen in current market is mostly similar in overall structure, mainly hydraulic cylinder, hydraulic inner rod is externally sleeved with spring, in actual use process, there are some deficiencies in function, have certain improvement space, such as hydraulic cylinder and hydraulic rod are externally sleeved with spring, but its contact active position is exposed, and rear shock absorber is on both sides of the rear wheel of electric bicycle, dust and mud are easy to splash into the gap between inner rod and hydraulic cylinder, which is troublesome to clean in later period, without closed dustproof function.
[0004] Now, a new type of closed dustproof type electric bicycle rear shock absorber is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of closed dustproof type electric bicycle rear shock absorber to solve the problem of not having the function of closed dustproof in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of closed dustproof type electric bicycle rear shock absorber, including base, the middle position of the top of base is fixedly connected with hydraulic cylinder, the inside of hydraulic cylinder is vertically provided with hydraulic inner rod, the top of hydraulic inner rod is fixedly connected with top fixed seat, spring is arranged between the top of hydraulic inner rod and the bottom of top fixed seat, the top of hydraulic cylinder is provided with closed dustproof assembly that can prevent dust from entering hydraulic cylinder.
[0007] The closed dustproof assembly includes internal thread cap, the top of internal thread cap is sleeved in the top of hydraulic cylinder, the middle position of the top of internal thread cap is provided with pre-slot, the top of the inside of internal thread cap is fixedly connected with magnetic ring, the top of internal thread cap is provided with rubber elastic ring, rubber dust cover is glued between internal thread cap and rubber elastic ring.
[0008] As a further technical scheme of the utility model, the top end of the hydraulic cylinder is externally threaded, and the internal thread of the cap is matched with the external thread of the hydraulic cylinder.
[0009] As a further technical scheme of the utility model, the inner diameter of the pre-slotted part is greater than the outer diameter of the hydraulic inner rod, and the bottom end of the magnetic ring is attached to the top end of the hydraulic cylinder.
[0010] As a further technical scheme of the utility model, the inner diameter of the rubber elastic ring is smaller than the outer diameter of the hydraulic inner rod, and the rubber dust cover and the rubber elastic ring are elastic.
[0011] As a further technical scheme of the utility model, the front end of the base is provided with a chip slot, an RFID chip is horizontally arranged in the chip slot, a dustproof cover is arranged in front of the RFID chip, and four fixing screws are respectively inserted into the four corners of the front end of the dustproof cover.
[0012] As a further technical scheme of the utility model, the fixing screws pass through the dustproof cover and extend into the interior of the base, and the front ends of the base and the dustproof cover are flush.
[0013] As a further technical scheme of the utility model, the top end of the top fixing seat is provided with an upper connecting ring, an upper bolt rod is welded to the bottom end of the upper connecting ring, the bottom end of the base is fixedly connected with a bottom fixing seat, the bottom end of the bottom fixing seat is provided with a lower connecting ring, and the top end of the lower connecting ring is fixedly connected with a lower bolt rod.
[0014] As a further technical scheme of the utility model, the external thread of the upper bolt rod is matched with the internal thread of the top fixing seat, and the external thread of the lower bolt rod is matched with the internal thread of the bottom fixing seat.
[0015] Compared with the prior art, the utility model has the advantages that the closed dustproof type electric bicycle rear shock absorber not only realizes the functions of closed dustproof and convenient information storage, reading and maintenance, but also realizes the function of easy replacement and disassembly of the connecting ring.
[0016] (1) By setting the internal thread cap, pre-slotted part, magnetic ring, rubber dust cover and rubber elastic ring, the upper connecting ring is connected with the rear seat bottom of the electric bicycle, the lower connecting ring is connected with the rear wheel of the electric bicycle, the hydraulic cylinder and the hydraulic inner rod are contracted and shock-absorbed, the spring increases the support and promotes the reset, the internal thread cap is connected with the hydraulic cylinder through the thread at the joint of the hydraulic cylinder and the hydraulic inner rod, the magnetic ring increases the firmness and prevents the internal thread cap from rotating and loosening under the action of vibration, the pre-slotted part facilitates the passage of the hydraulic inner rod, the rubber elastic ring clamps the hydraulic inner rod, and the rubber dust cover blocks the top opening of the hydraulic cylinder, which can prevent dust and water, and realizes the function of closed dustproof.
[0017] (2) By being provided with the chip slot, RFID chip, dust cover and fixing screw, the information of the shock absorber and the owner information can be pre-recorded into the RFID chip in the chip slot through the reader, which is convenient for reading and revising in the later maintenance, and can be used as evidence in the theft dispute, the dust cover protects the RFID chip from being lost or damaged, and the function of storing, reading and maintaining information is realized;
[0018] (3) By being provided with the top fixing seat, upper bolt rod, bottom fixing seat, lower bolt rod and lower connecting ring, the upper connecting ring is connected with the bottom of the rear seat of the electric bicycle, the lower connecting ring is connected with the rear wheel of the electric bicycle, the upper connecting ring and the lower connecting ring are connected with the shock absorber through the upper bolt rod and the lower bolt rod respectively, and the connecting ring can be replaced and disassembled. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a front view structural schematic diagram of the utility model;
[0020] Figure 2 It is a front view structural schematic diagram of the utility model's hydraulic cylinder, upper connecting ring (15) and lower connecting ring (19) in a separated state;
[0021] Figure 3 It is a front view structural schematic diagram of the utility model; Figure 1 It is a local section enlarged structural schematic diagram of the utility model;
[0022] Figure 4 It is a rubber dust cover side view section enlarged structural schematic diagram of the utility model.
[0023] In the drawing: 1, base; 2, hydraulic cylinder; 3, hydraulic inner rod; 4, spring; 5, inner thread cap; 6, pre-slot; 7, magnetic ring; 8, rubber dust cover; 9, rubber elastic ring; 10, top fixing seat; 11, chip slot; 12, RFID chip; 13, dust cover; 14, fixing screw; 15, upper connecting ring; 16, upper bolt rod; 17, bottom fixing seat; 18, lower bolt rod; 19, lower connecting ring. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0025] Embodiment: please refer to Figures 1-4The utility model provides a kind of closed dustproof electric bicycle rear shock absorber, including base 1, the middle position of the top of base 1 is fixedly connected with hydraulic cylinder 2, vertical hydraulic inner rod 3 is arranged in the inside of hydraulic cylinder 2, the top of hydraulic inner rod 3 is fixedly connected with top fixed seat 10, spring 4 is arranged between the top of hydraulic inner rod 3 and the bottom of top fixed seat 10, the top of hydraulic cylinder 2 is provided with closed dustproof assembly that can prevent dust from entering hydraulic cylinder 2;
[0026] Please refer to Figures 1-4 A kind of closed dustproof electric bicycle rear shock absorber further includes closed dustproof assembly, and the closed dustproof assembly includes internally threaded cap 5, internally threaded cap 5 is sleeved on the top of hydraulic cylinder 2, pre-slot 6 is formed in the middle position of the top of internally threaded cap 5, magnetic ring 7 is fixedly connected at the top of the inside of internally threaded cap 5, rubber elastic ring 9 is arranged above internally threaded cap 5, and rubber dust cover 8 is glued between internally threaded cap 5 and rubber elastic ring 9;
[0027] The top of the outside of hydraulic cylinder 2 is threaded, the thread in the inside of internally threaded cap 5 and the thread of the outside of hydraulic cylinder 2 are matched, the inner diameter of pre-slot 6 is greater than the outer diameter of hydraulic inner rod 3, the bottom of magnetic ring 7 and the top of hydraulic cylinder 2 are attached, the inner diameter of rubber elastic ring 9 is less than the outer diameter of hydraulic inner rod 3, and rubber dust cover 8 and rubber elastic ring 9 are elastic, and the closed dustproof effect is good;
[0028] Specifically, as shown in Figure 1 And Figure 4 Internally threaded cap 5 is connected by thread and hydraulic cylinder 2, magnetic ring 7 increases firmness, prevents internally threaded cap 5 from loosening under the action of vibration, pre-slot 6 facilitates the passage of hydraulic inner rod 3, rubber elastic ring 9 clamps hydraulic inner rod 3, and rubber dust cover 8 blocks the top opening of hydraulic cylinder 2, which can prevent dust and water.
[0029] Chip slot 11 is formed in the front end of base 1, and RFID chip 12 is horizontally placed in the inside of chip slot 11, dust cover 13 is arranged in front of RFID chip 12, and fixed screw 14 is respectively inserted in the four corners of the front end of dust cover 13, fixed screw 14 penetrates dust cover 13 and extends into the inside of base 1, and the front end of base 1 and dust cover 13 is flush, which facilitates information storage and reading;
[0030] Specifically, as shown in Figure 2 And Figure 3 Information is input into RFID chip 12 in chip slot 11, which is convenient for reading and revising in later maintenance, and can be used as evidence in theft disputes.
[0031] The top end of the top fixing base 10 is provided with an upper connecting ring 15, the bottom end of the upper connecting ring 15 is welded with an upper bolt rod 16, the bottom end of the base 1 is fixedly connected with a bottom fixing base 17, the bottom end of the bottom fixing base 17 is provided with a lower connecting ring 19, the top end of the lower connecting ring 19 is fixedly connected with a lower bolt rod 18, the external thread of the upper bolt rod 16 is matched with the internal thread of the top fixing base 10, the external thread of the lower bolt rod 18 is matched with the internal thread of the bottom fixing base 17, and the connecting ring is convenient to disassemble and assemble;
[0032] Specifically, as shown in Figure 1 and Figure 2 The upper connecting ring 15 and the lower connecting ring 19 are connected with the shock absorber through the upper bolt rod 16 and the lower bolt rod 18 respectively, and can be directly replaced by being screwed down in the later period.
[0033] Working principle: when the utility model is used, first, the upper connecting ring 15 is connected with the bottom of the rear seat of the electric bicycle, the lower connecting ring 19 is connected with the rear wheel of the electric bicycle, the hydraulic cylinder 2 and the hydraulic inner rod 3 are contracted and damped, the spring 4 increases the supporting property and promotes reset, at the butt joint of the hydraulic cylinder 2 and the hydraulic inner rod 3, the internal thread cover cap 5 is connected with the hydraulic cylinder 2 through thread, the magnetic ring 7 increases firmness, prevents the internal thread cover cap 5 from loosening under the action of vibration, the pre-groove 6 is convenient for the hydraulic inner rod 3 to pass through, the rubber elastic ring 9 clamps the hydraulic inner rod 3, and the rubber dust cover 8 blocks the top opening of the hydraulic cylinder 2, which can prevent dust and water. The information of the shock absorber and the owner information can be pre-recorded into the RFID chip 12 in the chip groove 11 through the reader, which is convenient for reading and revising in the later period of maintenance, and can be used as evidence in the stolen dispute, and the dust cover 13 protects the RFID chip 12 from being lost or damaged. The upper connecting ring 15 is connected with the bottom of the rear seat of the electric bicycle, the lower connecting ring 19 is connected with the rear wheel of the electric bicycle, the upper connecting ring 15 and the lower connecting ring 19 are connected with the shock absorber through the upper bolt rod 16 and the lower bolt rod 18 respectively, and can be directly replaced by being screwed down in the later period.
[0034] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.
Claims
1. A sealed dustproof rear shock absorber for electric bicycles, comprising a base (1), characterized in that: A hydraulic cylinder (2) is fixedly connected to the middle position of the top of the base (1). A hydraulic inner rod (3) is vertically arranged inside the hydraulic cylinder (2). A top fixing seat (10) is fixedly connected to the top of the hydraulic inner rod (3). A spring (4) is arranged between the top of the hydraulic inner rod (3) and the bottom of the top fixing seat (10). A closed dustproof component is provided at the top of the hydraulic cylinder (2) to prevent dust from entering the hydraulic cylinder (2). The enclosed dustproof assembly includes an internal thread cap (5), which is sleeved on the top of the hydraulic cylinder (2). A pre-grooved slot (6) is provided at the middle position of the top of the internal thread cap (5). A magnetic ring (7) is fixedly connected to the top of the internal thread cap (5). A rubber elastic ring (9) is provided above the internal thread cap (5). A rubber dust cover (8) is glued between the internal thread cap (5) and the rubber elastic ring (9).
2. The enclosed dustproof rear shock absorber for electric bicycles according to claim 1, characterized in that: The top of the hydraulic cylinder (2) is threaded, and the internal thread of the internal thread cap (5) matches the external thread of the hydraulic cylinder (2).
3. The enclosed dustproof rear shock absorber for electric bicycles according to claim 1, characterized in that: The inner diameter of the pre-grooved (6) is larger than the outer diameter of the hydraulic inner rod (3), and the bottom end of the magnetic ring (7) is in contact with the top end of the hydraulic cylinder (2).
4. The enclosed dustproof rear shock absorber for electric bicycles according to claim 1, characterized in that: The inner diameter of the rubber elastic ring (9) is smaller than the outer diameter of the hydraulic inner rod (3), and the rubber dust cover (8) and the rubber elastic ring (9) are elastic.
5. A sealed dustproof rear shock absorber for electric bicycles according to claim 1, characterized in that: The base (1) has a chip slot (11) at the front end, and an RFID chip (12) is placed horizontally inside the chip slot (11). A dust cover (13) is provided in front of the RFID chip (12), and fixing screws (14) are inserted into the four corners of the front end of the dust cover (13).
6. A sealed dustproof rear shock absorber for electric bicycles according to claim 5, characterized in that: The fixing screw (14) passes through the dust cover (13) and extends into the interior of the base (1), with the front ends of the base (1) and the dust cover (13) flush.
7. A sealed dustproof rear shock absorber for electric bicycles according to claim 1, characterized in that: The top of the top fixing seat (10) is provided with an upper connecting ring (15), and the bottom of the upper connecting ring (15) is welded with an upper bolt rod (16). The bottom of the base (1) is fixedly connected with a bottom fixing seat (17), and the bottom of the bottom fixing seat (17) is provided with a lower connecting ring (19). The top of the lower connecting ring (19) is fixedly connected with a lower bolt rod (18).
8. A sealed dustproof rear shock absorber for electric bicycles according to claim 7, characterized in that: The external thread of the upper bolt rod (16) matches the internal thread of the top fixing seat (10), and the external thread of the lower bolt rod (18) matches the internal thread of the bottom fixing seat (17).