Protective sleeve for steel ring of bicycle wheel
By designing U-shaped sheath and other structures on the bicycle wheel rim, the deformation problem caused by contacting the steel rim when the tire is removed from the wheel rim is solved, and a safer and more effective tire replacement process is achieved.
Patent Information
- Application Number
- CN202421730303.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-22
AI Technical Summary
When removing the bicycle tire from the wheel rim, it is necessary to operate it with tools such as a one-line starting point, which causes the one-line starting point to come into contact with the wheel rim, which can easily cause deformation and damage to the edge layer of the steel ring.
A bicycle wheel rim sheath is designed, including U-shaped sheath, support rod, positioning ring, rotating rod, bump and slot. Through these structures, a line is passed through the positioning ring and inserted between the tire and the edge layer to avoid direct compression of the wheel rim.
It effectively avoids direct contact with the wheel rim, protects the edge layer of the steel rim, simplifies the tire replacement process, and improves the service life of the steel rim.
Smart Images
Figure CN222807827U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wheels, in particular to a steel ring protective sleeve for a bicycle wheel. Background Art
[0002] Bicycles are a common means of transportation. Many people have a bicycle at home. The tires of bicycles are open-type tires, which are composed of a woven mesh cover to form the main body of the tire. A layer of tire skin is attached to prevent wear during rolling, and two tire lips are buried to fix the tire on the rim, thus forming the main structure of the tire.
[0003] Since bicycle tires are relatively thin and easily punctured or cut, they need to be removed from the wheel rim when they are damaged. When removing the tire from the wheel rim, it is necessary to use a tool such as a flathead screwdriver to insert it into the tire, and then pry the flathead screwdriver to remove the tire from the wheel rim. During this process, there is squeezing between the flathead screwdriver and the wheel rim, which can easily cause deformation and other damage to the edge layer of the wheel rim. Utility Model Content
[0004] (I) Purpose of the utility model
[0005] In view of this, the purpose of the utility model is to provide a bicycle wheel rim cover. The technical problem to be solved is that when removing the tire from the wheel rim, it is necessary to use a tool such as a flat-blade screwdriver to clamp it into the tire, and then pry the flat-blade screw. During this process, there is squeezing between the flat-blade screw and the wheel rim, which can easily cause deformation and other damage to the edge layer of the wheel rim.
[0006] (II) Technical solution
[0007] In order to achieve the above technical purpose, the utility model provides a bicycle wheel rim sheath:
[0008] It includes a wheel rim, which consists of a main rim body and two edge layers. The outer side of the wheel rim is covered with a tire, one of the edge layers is covered with a U-shaped sheath, and the U-shaped sheath slides on the edge layer, two support rods are fixed to one side of the U-shaped sheath, a positioning ring for a straight-end screwdriver to pass through is arranged between the two support rods, a rotating rod is fixed to the side of the support rod close to the positioning ring, and the rotating rod penetrates the positioning ring and rotates inside the positioning ring, a protrusion is fixed to one side of the U-shaped sheath, and a slot for accommodating a straight-end screwdriver is opened on the protrusion.
[0009] Preferably, a side plate is fixed to the bottom of one side of the U-shaped sheath, and a limiting block is fixed to the side of the side plate away from the U-shaped sheath.
[0010] Preferably, a plurality of first cylindrical tubes are fixed to the inner walls on both sides of the U-shaped sheath, and the plurality of first cylindrical tubes are arranged in two rows.
[0011] Preferably, a second cylindrical cylinder is slidably connected inside the first cylindrical cylinder, a ball is arranged inside the second cylindrical cylinder, a cylindrical rod is fixed inside the second cylindrical cylinder, and the cylindrical rod penetrates the ball and slides inside the ball.
[0012] Preferably, an elastic member is disposed in the first cylindrical tube, one end of the elastic member is fixed to the second cylindrical tube, and the other end of the elastic member is fixed to the inner wall of the first cylindrical tube.
[0013] Preferably, the distance between the balls arranged opposite to each other on the inner walls of both sides of the U-shaped sheath is smaller than the thickness of the edge layer.
[0014] It can be seen from the above technical solutions that this application has the following beneficial effects:
[0015] 1: Through the setting of the support rod, the positioning ring, the rotating rod, the convex block and the slot, the straight-edge screwdriver is passed through the positioning ring, and then the straight-edge screwdriver is rotated and moved so that the straight-edge screwdriver is inserted between the tire and the edge layer, and then the straight-edge screwdriver is lifted up, and the tire is removed from the wheel rim with the straight-edge screwdriver. The setting of the positioning ring and the slot makes it easy to lift the tire, and the setting of the U-shaped sheath prevents the straight-edge screwdriver from being directly squeezed with the wheel rim, thereby protecting the wheel rim.
[0016] 2: Due to the arrangement of the first cylindrical tube, the second cylindrical tube and the ball, when the U-shaped sleeve is installed on the outside of the edge layer, the ball is squeezed by the edge layer and drives the second cylindrical tube to move into the first cylindrical tube, so that the elastic part is compressed, that is, the ball and the edge layer are in conflict. Then, when the U-shaped sleeve is slid, due to the arrangement of the ball, the U-shaped sleeve can be easily slid on the wheel rim. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0018] Figure 1 A schematic diagram of the top view of the bicycle wheel rim provided by the utility model during maintenance;
[0019] Figure 2 A schematic diagram of the structure of the U-shaped sheath provided by the utility model;
[0020] Figure 3 A schematic diagram of the structure of a straight-blade and a U-shaped sheath provided by the utility model;
[0021] Figure 4A schematic diagram of the side cross-sectional structure of the U-shaped sheath provided by the utility model;
[0022] Figure 5 The utility model provides Figure 4 Schematic diagram of the structure at point A in the middle.
[0023] Description of the drawings: 1. Wheel rim; 2. Tire; 3. U-shaped sheath; 4. Support rod; 5. Positioning ring; 6. Rotating rod; 7. Bump; 8. Slot; 9. Lifting screw; 10. Side plate; 11. Limit block; 12. First cylindrical tube; 13. Second cylindrical tube; 14. Ball bearing; 15. Cylindrical rod; 16. Elastic member; 100. Main ring body; 101. Edge layer. DETAILED DESCRIPTION
[0024] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.
[0025] The utility model provides Figure 1-5 The bicycle wheel rim cover shown includes a wheel rim 1, which consists of a main rim body 100 and two edge layers 101. The outer side of the wheel rim 1 is covered with a tire 2, one of the edge layers 101 is covered with a U-shaped cover 3, and the U-shaped cover 3 is slid on the edge layer 101, a side plate 10 is fixed to the bottom of one side of the U-shaped cover 3, a limiting block 11 is fixed to the side of the side plate 10 away from the U-shaped cover 3, two support rods 4 are fixed to one side of the U-shaped cover 3, and a positioning ring 5 for a straight-line starter 9 to pass through is arranged between the two support rods 4.
[0026] It should be noted that when replacing the tire 2, first insert the side plate 10 and the limit block 11 into the wheel rim 1 so that the limit block 11 is located inside the tire 2, then pass the straight-line lifter 9 through the positioning ring 5, and insert the straight-line lifter 9 between the tire 2 and the edge layer 101, then lift the straight-line lifter 9 so that the straight-line lifter 9 lifts the tire 2, and then hold the straight-line lifter 9 and move it so that it drives the U-shaped sheath 3 to slide on the edge layer 101, thereby removing the tire 2 from the wheel rim 1.
[0027] A rotating rod 6 is fixed to one side of the support rod 4 close to the positioning ring 5, and the rotating rod 6 passes through the positioning ring 5 and rotates inside the positioning ring 5. A protrusion 7 is fixed to one side of the U-shaped sheath 3, and a slot 8 for accommodating a straight screwdriver 9 is provided on the protrusion 7.
[0028] It should be noted that, due to the arrangement of the slot 8, after the straight lift 9 is inserted between the tire 2 and the edge layer 101, when the straight lift 9 is tilted, the straight lift 9 will be located in the slot 8, and the arrangement of the slot 8 prevents the straight lift 9 from sliding left and right.
[0029] Specifically, multiple first cylindrical tubes 12 are fixed to the inner walls on both sides of the U-shaped sheath 3, and the multiple first cylindrical tubes 12 are arranged in two rows. The second cylindrical tube 13 is slidably connected inside the first cylindrical tube 12, and an elastic member 16 is arranged inside the first cylindrical tube 12. One end of the elastic member 16 is fixed to the second cylindrical tube 13, and the other end of the elastic member 16 is fixed to the inner wall of the first cylindrical tube 12. A ball 14 is arranged in the second cylindrical tube 13, and a cylindrical rod 15 is fixed in the second cylindrical tube 13, and the cylindrical rod 15 passes through the ball 14 and slides inside the ball 14.
[0030] It should be noted that the elastic member 16 can be a spring or other device, and when the elastic member 16 is in a normal state, the distance between the balls 14 relatively arranged on the inner walls on both sides of the U-shaped sleeve 3 is smaller than the thickness of the edge layer 101, so that the balls 14 slide outside the edge layer 101.
[0031] The exemplary implementation scheme of the present disclosure is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the protection scope of the present disclosure, which is determined by the attached claims.
Claims
1. A bicycle wheel rim cover, comprising a wheel rim (1), wherein the wheel rim (1) is composed of a main rim body (100) and two edge layers (101), and the outer side of the wheel rim (1) is covered with a tire (2), characterized in that: One of the edge layers (101) is provided with a U-shaped sheath (3) on its outer cover, and the U-shaped sheath (3) is located on the edge layer (101) and slides thereon; two support rods (4) are fixed on one side of the U-shaped sheath (3); a positioning ring (5) for a straight-line screwdriver (9) to pass through is provided between the two support rods (4); a rotating rod (6) is fixed on one side of the support rod (4) close to the positioning ring (5); the rotating rod (6) passes through the positioning ring (5) and is located inside the positioning ring (5) for rotation; a convex block (7) is fixed on one side of the U-shaped sheath (3); and a slot (8) for accommodating the straight-line screwdriver (9) is provided on the convex block (7).
2. The bicycle wheel rim protector according to claim 1, characterized in that: A side plate (10) is fixed to the bottom of one side of the U-shaped jacket (3), and a limiting block (11) is fixed to the side of the side plate (10) away from the U-shaped jacket (3).
3. The bicycle wheel rim protector according to claim 1, characterized in that: A plurality of first cylindrical tubes (12) are fixed to the inner walls of both sides of the U-shaped protective sleeve (3), and the plurality of first cylindrical tubes (12) are arranged in two rows.
4. The bicycle wheel rim protector according to claim 3, characterized in that: The first cylindrical tube (12) is slidably connected to a second cylindrical tube (13), a ball (14) is arranged in the second cylindrical tube (13), a cylindrical rod (15) is fixed in the second cylindrical tube (13), and the cylindrical rod (15) passes through the ball (14) and slides in the ball (14).
5. The bicycle wheel rim protector according to claim 4, characterized in that: An elastic member (16) is disposed inside the first cylindrical tube (12); one end of the elastic member (16) is fixed to the second cylindrical tube (13), and the other end of the elastic member (16) is fixed to the inner wall of the first cylindrical tube (12).
6. The bicycle wheel rim protector according to claim 4, characterized in that: The distance between the balls (14) arranged opposite to each other on the inner walls of both sides of the U-shaped protective sleeve (3) is smaller than the thickness of the edge layer (101).