Bicycle rim maintenance support

Abstract

The utility model discloses a bicycle rim maintenance support which comprises a base, an air cylinder is fixed to the center of the top wall of the base, a connecting block is fixed to the top end of the air cylinder, an n-shaped base is installed above the connecting block, the connecting block is rotatably installed in the n-shaped base through a rotating shaft, a rotating mechanism used for controlling the connecting block to rotate is installed in the n-shaped base, and an installation disc is fixed to the top wall of the n-shaped base. A connecting column is fixed to the center of the top wall of the installation disc, a clamping mechanism used for clamping a bicycle rim is rotationally installed at the top end of the connecting column, an inner gear ring is fixed to the outer edge of the bottom wall of the clamping mechanism, a motor is fixed to one side of the top wall of the installation disc, and a cylindrical gear is fixed to a power shaft at the top end of the motor. The bicycle rims of different sizes can be clamped through the arranged clamping mechanism, the bicycle rims can be internally clamped or externally clamped, operation is easy and convenient, and secondary damage to the rims cannot be caused.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle rim maintenance equipment, in particular to a bicycle rim maintenance bracket. Background Art

[0002] Bicycle wheels are an important part of bicycles, because the combination of bicycles directly affects the speed and stability of bicycles during travel. With the continuous development of bicycle sports, the importance of wheels has gradually been reflected. Bicycle wheels are mainly composed of rims, inner tubes, outer tubes, spokes and hubs.

[0003] Since bicycle wheels are prone to failure after long-term use, especially since the bicycle rim is connected to the outer tire on the outside and the spokes on the inside, there is a possibility of failure on both sides. During the maintenance of existing bicycle rims, the repairer usually directly places the rim on the ground and steps on it to fix it, which is inconvenient during the maintenance process and is prone to secondary damage to the rim.

[0004] To this end, the utility model provides a bicycle rim repair bracket, which solves the above-mentioned problem by providing a clamping mechanism, a rotating mechanism and other structures. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a bicycle rim repair bracket to solve the above problems.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a bicycle rim repair bracket, comprising a base, a cylinder is fixed at the center of the top wall of the base, a connecting block is fixed at the top of the cylinder, an n-shaped seat is installed above the connecting block, the connecting block is rotatably installed in the n-shaped seat through a rotating shaft, a rotating mechanism for controlling the rotation of the connecting block is installed in the n-shaped seat, a mounting plate is fixed to the top wall of the n-shaped seat, a connecting column is fixed at the center of the top wall of the mounting plate, a clamping mechanism for clamping the bicycle rim is rotatably installed on the top of the connecting column, an internal gear ring is fixed on the outer edge of the bottom wall of the clamping mechanism, a motor is fixed on one side of the top wall of the mounting plate, a cylindrical gear is fixed to the power shaft at the top of the motor, and the cylindrical gear is meshed and connected to the internal gear ring.

[0007] Preferably, the rotating mechanism includes a No. 1 worm wheel, a mounting groove is opened in the N-shaped seat corresponding to the position of the No. 1 worm wheel, the connecting block is fixedly connected to the rotating shaft, the rotating shaft passes through the side wall of the mounting groove through a bearing and is fixedly connected to the axial position of the No. 1 worm wheel, the No. 1 worm wheel is meshingly connected to a No. 1 worm, the No. 1 worm is rotatably installed in the mounting groove, and one end of the No. 1 worm is fixed to a No. 1 knob by passing through the front wall of the N-shaped seat through a bearing.

[0008] Preferably, the clamping mechanism includes a cylindrical shell rotatably mounted on the top of the connecting column, a turntable is installed in the cylindrical shell, a plurality of inclined "⊥"-shaped grooves are symmetrically provided on the top wall of the turntable, a slider is slidably installed in the "⊥"-shaped groove, a rectangular column is fixed on the top of the slider, and a guide groove is provided through the top wall of the cylindrical shell at the position corresponding to the rectangular column.

[0009] Preferably, an L-shaped clamp is symmetrically fixed to the top of the rectangular column, and a mounting shaft is fixed to the bottom of the turntable. The mounting shaft is rotatably connected to the bottom wall of the inner cavity of the cylindrical shell, and a No. 2 worm wheel is fixed on the shaft body of the mounting shaft. The No. 2 worm wheel is meshingly connected to a No. 2 worm, and one end of the No. 2 worm is fixed with a No. 2 knob through a bearing passing through the side wall of the cylindrical shell.

[0010] Preferably, a rubber pad is fixed to the clamping end of the L-shaped clamping plate.

[0011] Beneficial Effects

[0012] The utility model provides a bicycle rim repair stand. Compared with the prior art, it has the following beneficial effects:

[0013] (1) The bicycle rim repair stand can clamp bicycle rims of different sizes through the provided clamping mechanism, and can clamp the bicycle rims inside or outside, which is simple and convenient to operate and will not cause secondary damage to the rims.

[0014] (2) The bicycle rim repair stand can adjust the height of the clamping mechanism by means of a provided cylinder, so that the repair stand can meet the needs of repair personnel of different heights. The provided rotating mechanism is used to control the deflection between the N-shaped seat and the connecting block, thereby adjusting the deflection of the clamping mechanism, so that the repair personnel can repair the bicycle rim more conveniently according to actual needs. The provided motor can drive the internal gear ring to rotate through the cylindrical gear, thereby driving the clamping mechanism to rotate, so that the repair personnel can maintain different positions of the bicycle rim at a fixed position, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The external structure of the utility model is three-dimensional Figure 1 ;

[0016] Figure 2 The external structure of the utility model is three-dimensional Figure 2 ;

[0017] Figure 3 It is a three-dimensional diagram of the internal top structure of the cylindrical shell of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the internal bottom structure of the cylindrical shell of the utility model;

[0019] Figure 5 It is a three-dimensional diagram of the rotating mechanism structure of the utility model.

[0020] In the figure, 1, base; 2, cylinder; 3, connecting block; 4, N-shaped seat; 5, rotating mechanism; 501, worm wheel No. 1; 502, mounting groove; 503, worm screw No. 1; 504, knob No. 1; 6, mounting plate; 7, connecting column; 8, clamping mechanism; 801, cylindrical shell; 802, turntable; 803, "⊥"-shaped slide groove; 804, slider; 805, rectangular column; 806, L-shaped clamping plate; 807, mounting shaft; 808, worm wheel No. 2; 809, worm screw No. 2; 810, knob No. 2; 9, inner gear ring; 10, motor; 11, cylindrical gear; 12, guide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] See also Figure 1-2 A bicycle rim repair stand comprises a base 1, a cylinder 2 is fixed at the center of the top wall of the base 1, a connecting block 3 is fixed at the top of the cylinder 2, an n-shaped seat 4 is installed above the connecting block 3, the connecting block 3 is rotatably installed in the n-shaped seat 4 through a rotating shaft, a rotating mechanism 5 for controlling the rotation of the connecting block 3 is installed in the n-shaped seat 4, a mounting plate 6 is fixed to the top wall of the n-shaped seat 4, a connecting column 7 is fixed at the center of the top wall of the mounting plate 6, a clamping mechanism 8 for clamping the bicycle rim is rotatably installed at the top of the connecting column 7, an inner gear ring 9 is fixed at the outer edge of the bottom wall of the clamping mechanism 8, a motor 10 is fixed to one side of the top wall of the mounting plate 6, a cylindrical gear 11 is fixed to the power shaft at the top of the motor 10, and the cylindrical gear 11 is meshed and connected with the inner gear ring 9.

[0024] In this embodiment, the base 1 is used to play a supporting role, the cylinder 2 is used to adjust the height of the clamping mechanism 8, so that the utility model can meet the needs of maintenance personnel of different heights, the rotating mechanism 5 is used to control the deflection between the n-shaped seat 4 and the connecting block 3, so as to adjust the deflection of the clamping mechanism 8, so that the maintenance personnel can more conveniently repair the bicycle rim according to actual needs, the clamping mechanism 8 is used to clamp bicycle rims of different sizes, and can perform internal or external clamping on the bicycle rim. When the inner wall of the bicycle rim needs to be repaired, the external clamping is adopted, and if the outer wall of the bicycle rim needs to be repaired, the internal clamping is adopted, so that the clamping of the bicycle rim does not affect its maintenance, and the internal gear ring 9 is used to cooperate with the motor 10 and the cylindrical gear 11. The motor 10 can drive the internal gear ring 9 to rotate through the cylindrical gear 11, thereby driving the clamping mechanism 8 to rotate, so that the maintenance personnel can maintain different positions of the bicycle rim at a fixed position, and the operation is simple and convenient.

[0025] Embodiment 2:

[0026] See also Figure 3-5 This embodiment provides a technical solution based on the first embodiment: the rotating mechanism 5 includes a No. 1 worm wheel 501, a mounting groove 502 is opened in the n-shaped seat 4 corresponding to the position of the No. 1 worm wheel 501, the connecting block 3 is fixedly connected to the rotating shaft, the rotating shaft passes through the side wall of the mounting groove 502 through a bearing and is fixedly connected to the axial position of the No. 1 worm wheel 501, the No. 1 worm 501 is meshedly connected with a No. 1 worm 503, the No. 1 worm 503 is rotatably installed in the mounting groove 502, and one end of the No. 1 worm 503 passes through the front wall of the n-shaped seat 4 through a bearing and is fixed with a No. 1 knob 504.

[0027] In this embodiment, the rotating mechanism 5 is used to control the deflection between the N-shaped seat 4 and the connecting block 3, so as to adjust the deflection of the clamping mechanism 8, so that the maintenance personnel can more conveniently repair the bicycle rim according to actual needs. When the deflection angle of the clamping mechanism 8 needs to be adjusted, the No. 1 knob 504 is rotated, and the No. 1 knob 504 drives the No. 1 worm 503 to rotate. Since the No. 1 worm wheel 501 is in a fixed position, the No. 1 worm 503 and the No. 1 worm wheel 501 rotate relative to each other (but are always in a meshing state), so the No. 1 worm 503 will drive the N-shaped seat 4 to deflect, thereby realizing the deflection of the clamping mechanism 8. At the same time, the self-locking function of the No. 1 worm wheel 501 and the No. 1 worm 503 is used to keep the position of the clamping mechanism 8 fixed after deflection.

[0028] The clamping mechanism 8 includes a cylindrical shell 801 rotatably mounted on the top of the connecting column 7, a rotating disk 802 is mounted in the cylindrical shell 801, a plurality of inclined “⊥”-shaped slide grooves 803 are symmetrically opened on the top wall of the rotating disk 802, a slider 804 is slidably mounted in the “⊥”-shaped slide grooves 803, a rectangular column 805 is fixed on the top of the slider 804, and a guide groove 12 is penetrated and opened at the position corresponding to the rectangular column 805 on the top wall of the cylindrical shell 801. An L-shaped clamping plate 806 is symmetrically fixed on the top of the rectangular column 805, a mounting shaft 807 is fixed on the bottom end of the rotating disk 802, the mounting shaft 807 is rotatably connected to the bottom wall of the inner cavity of the cylindrical shell 801, a No. 2 worm wheel 808 is fixed on the shaft body of the mounting shaft 807, the No. 2 worm wheel 808 is meshedly connected with a No. 2 worm 809, and one end of the No. 2 worm 809 passes through the side wall of the cylindrical shell 801 through a bearing and is fixed with a No. 2 knob 810. A rubber pad is fixed to the clamping end of the L-shaped clamping plate 806 .

[0029] In this embodiment, the clamping mechanism 8 is used to clamp bicycle rims of different sizes, and can clamp the bicycle rims inside or outside. When the bicycle rim needs to be clamped, the second knob 810 is rotated, and the second knob 810 drives the second worm 809 to rotate. The second worm 809 drives the turntable 802 to rotate through the second worm wheel 808 and the installation shaft 807. During the rotation of the turntable 802, the rectangular column 805 can move inward or outward at the same time under the joint action of the "⊥"-shaped slide groove 803 and the guide groove 12. At the same time, the self-locking function of the second worm 809 and the second worm wheel 808 is used to fix the position of the turntable 802. The rectangular column 805 cooperates with the L-shaped clamping plate 806 to complete the clamping and fixing of the bicycle rim. The provided rubber pad can play a protective role when the bicycle rim is clamped and fixed.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] When working, firstly, according to actual needs, choose to clamp the bicycle rim inside or outside. When the inner wall of the bicycle rim needs to be repaired, the outer clamping is adopted (that is, the outer wall of the bicycle rim is clamped by the inner L-shaped clamping plate 806). If the outer wall of the bicycle rim needs to be repaired, the inner clamping is adopted (that is, the inner wall of the bicycle rim is clamped by the outer L-shaped clamping plate 806). During the clamping process, the second knob 810 is turned, and the second knob 810 drives the second worm 809 to rotate. The second worm 809 drives the turntable 802 to rotate through the second worm wheel 808 and the installation shaft 807. During the rotation of the turntable 802, the rectangular column 805 can move inward or outward at the same time under the joint action of the "⊥"-shaped slide groove 803 and the guide groove 12, so as to cooperate with the L-shaped clamping plate 806 to complete the repair of the bicycle rim. The bicycle rim is clamped and fixed, and then the telescopic length of the cylinder 2 is adjusted according to the actual height of the maintenance personnel, so that the clamped bicycle rim is in a suitable position, and then the bicycle rim is deflected according to actual needs, and the No. 1 knob 504 is rotated, and the No. 1 knob 504 drives the No. 1 worm 503 to rotate. Since the No. 1 worm wheel 501 is fixed in position, the No. 1 worm 503 and the No. 1 worm wheel 501 rotate relatively, so the No. 1 worm 503 will drive the N-shaped seat 4 to deflect, thereby realizing the deflection of the bicycle rim on the clamping mechanism 8. When it is necessary to repair other positions of the bicycle rim, the motor 10 can drive the internal gear ring 9 to rotate through the cylindrical gear 11, thereby driving the clamping mechanism 8 to rotate, so that the maintenance personnel can maintain different positions of the bicycle rim at a fixed position, and the operation is simple and convenient.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bicycle rim repair stand, comprising a base (1), characterized in that: A cylinder (2) is fixed at the center of the top wall of the base (1); a connecting block (3) is fixed at the top of the cylinder (2); an n-shaped seat (4) is installed above the connecting block (3); the connecting block (3) is rotatably installed in the n-shaped seat (4) via a rotating shaft; a rotating mechanism (5) for controlling the rotation of the connecting block (3) is installed in the n-shaped seat (4); a mounting plate (6) is fixed at the top wall of the n-shaped seat (4); a connecting column (7) is fixed at the center of the top wall of the mounting plate (6); a clamping mechanism (8) for clamping a bicycle rim is rotatably installed at the top of the connecting column (7); an inner gear ring (9) is fixed at the outer edge of the bottom wall of the clamping mechanism (8); a motor (10) is fixed at one side of the top wall of the mounting plate (6); a cylindrical gear (11) is fixed to the power shaft at the top of the motor (10); the cylindrical gear (11) is meshedly connected to the inner gear ring (9).

2. A bicycle rim repair stand according to claim 1, characterized in that: The rotating mechanism (5) comprises a first worm wheel (501); a mounting groove (502) is provided in the n-shaped seat (4) at a position corresponding to the first worm wheel (501); the connecting block (3) is fixedly connected to the rotating shaft; the rotating shaft is fixedly connected to the axis position of the first worm wheel (501) through a bearing penetrating the side wall of the mounting groove (502); the first worm wheel (501) is meshingly connected to a first worm (503); the first worm (503) is rotatably mounted in the mounting groove (502); one end of the first worm (503) is fixed to a first knob (504) through a bearing penetrating the front wall of the n-shaped seat (4).

3. The bicycle rim repair stand according to claim 1, characterized in that: The clamping mechanism (8) comprises a cylindrical shell (801) rotatably mounted on the top of the connecting column (7), a rotating disk (802) being mounted in the cylindrical shell (801), a top wall of the rotating disk (802) being symmetrically provided with a plurality of inclined "⊥"-shaped sliding grooves (803), a sliding block (804) being slidably mounted in the "⊥"-shaped sliding grooves (803), a rectangular column (805) being fixed on the top of the sliding block (804), and a guide groove (12) being penetrated and opened at a position corresponding to the rectangular column (805) on the top wall of the cylindrical shell (801).

4. A bicycle rim repair stand according to claim 3, characterized in that: An L-shaped clamping plate (806) is symmetrically fixed to the top of the rectangular column (805), and a mounting shaft (807) is fixed to the bottom end of the turntable (802). The mounting shaft (807) is rotatably connected to the bottom wall of the inner cavity of the cylindrical shell (801). A No. 2 worm gear (808) is fixed to the shaft body of the mounting shaft (807), and the No. 2 worm gear (808) is meshingly connected to a No. 2 worm (809). One end of the No. 2 worm gear (809) passes through the side wall of the cylindrical shell (801) through a bearing and is fixed with a No. 2 knob (810).

5. A bicycle rim repair stand according to claim 4, characterized in that: A rubber pad is fixed to the clamping end of the L-shaped clamping plate (806).

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