Handle stem

Abstract

The utility model relates to the technical field of electric vehicles, in particular to a handlebar stem. The stem comprises an annular clamp, a first limiting piece and a first screw, an opening is formed in the annular clamp, limiting grooves communicated with the opening are formed in the two sides of the opening, and the lengths of the sides, close to the opening, of the two limiting grooves are smaller than the lengths of the other sides of the limiting grooves. The handlebar is placed in the annular hoop, the first screw penetrates through the first through hole to be connected with the first screw hole in a screwed mode, the handlebar is locked in the annular hoop, the two ends of the first limiting piece are arranged in the corresponding limiting grooves respectively, the first limiting piece can limit the distance between the two limiting grooves, and even after long-term use, the handlebar can not be separated from the annular hoop. When the first nut is loosened, the distance between the two limiting grooves cannot be increased, so that the possibility that the handlebar slightly moves in the stem is reduced, and the stability and the safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to a handle. Background Art

[0002] In the prior art, the front fork is an important component of a bicycle for locking the front wheel and controlling the driving direction. The handlebars of most bicycles are connected to the front fork riser through the stem and are installed on the bicycle frame.

[0003] Currently, a stem includes a connecting piece and a first arc plate, wherein the end of the connecting piece away from the spherical clamp is connected to the front fork stem, and the first arc plate and the second arc plate are connected by at least four screws, thereby locking the handlebar into the first arc plate and the second arc plate.

[0004] However, since the handlebars are only fixed by screws, the screws are easily loosened by external forces during long-term use, causing the handlebars to move slightly inside the stem, resulting in poor stability and safety. Utility Model Content

[0005] (1) The problem to be solved by the present invention is: how to reduce the possibility of movement of the front fork and handlebars in the stem and improve stability and safety.

[0006] (2) Technical solution

[0007] The utility model provides a handle, comprising an annular clamp, a first limiting member and a first screw;

[0008] The annular clamp has an opening, and both sides of the opening are provided with limiting grooves connected to the opening;

[0009] The lengths of the two limiting grooves on one side close to the opening are both shorter than the lengths of the other side;

[0010] Two ends of the first limiting member are respectively located in the two limiting grooves, and the first limiting member is used to limit the distance between the two limiting grooves;

[0011] A first through hole and a first screw hole are respectively formed on both sides of the opening, and the first screw passes through the first through hole and is screwed into the first screw hole;

[0012] The length direction of the limiting groove is perpendicular to the length direction of the first screw.

[0013] According to an embodiment of the present invention, the first limiting member includes a first connecting rod and two limiting blocks, and the two limiting blocks are respectively connected to both ends of the first connecting rod;

[0014] The two limiting blocks are respectively located in the two limiting grooves;

[0015] The limiting block is slidably connected in the limiting groove.

[0016] According to one embodiment of the present invention, the first connecting rod is a screw, one end of the screw is fixedly connected to one of the limit blocks, a second screw hole is provided on the other limit block, and the other end of the screw is screwed into the second screw hole.

[0017] According to an embodiment of the present invention, the stem further includes a second limiting member, which is arranged on one side of the limiting groove, and the second limiting member is used to limit the limiting block from leaving the limiting groove.

[0018] According to one embodiment of the present invention, the second limiting member includes a baffle and a threaded rod, the baffle is connected to one end of the threaded rod, a third screw hole is opened on the side wall of the annular clamp, and the other end of the threaded rod is screwed into the third screw hole.

[0019] According to one embodiment of the present invention, the stem further comprises a mounting tube and a second connecting rod connected thereto;

[0020] The mounting tube has a tube cavity for accommodating the front fork stem, and the second connecting rod is provided with an accommodating groove communicating with the tube cavity;

[0021] An abutment block and a pressing assembly are provided in the accommodating groove. The abutment block is connected to the pressing assembly. The pressing assembly is used to adjust the distance between the abutment block and the axis of the mounting tube.

[0022] According to one embodiment of the present invention, the accommodating groove includes a first groove and a second groove that are connected;

[0023] The first groove is used to limit the abutment block to move only along the first direction, and the first groove is located between the tube cavity and the second groove;

[0024] The first direction, the length direction of the annular clamp and the length direction of the mounting pipe are perpendicular to each other.

[0025] According to one embodiment of the present invention, the pressing assembly includes a first pressing block, a second pressing block and a second screw;

[0026] The second groove is used to limit the first pressing block and the second pressing block to move only in a direction perpendicular to the first direction;

[0027] The abutment block is a tapered block, and the cross-sectional area of ​​the tapered block on one side away from the axis of the mounting tube is smaller than the cross-sectional area of ​​the other side;

[0028] The conical block has a first side wall and a second side wall opposite to each other, the first pressing block abuts against the first side wall, and the second pressing block abuts against the second side wall;

[0029] A second through hole is formed on the first pressing block, a third through hole is formed on the conical block, and the second screw passes through the second through hole and the third through hole in sequence and is screwed to the second pressing block.

[0030] According to an embodiment of the present invention, a fifth screw hole is provided on the limiting block.

[0031] According to an embodiment of the present invention, a first countersunk hole is provided at one end of the first through hole away from the first screw hole.

[0032] Beneficial effects of the utility model:

[0033] Place the handlebar into the annular clamp, pass the first screw through the first through hole and screw it into the first screw hole. During the locking process of the annular clamp and the first screw, the distance between the two limit grooves is reduced, and the handlebar is locked into the annular clamp. Then, by placing the two ends of the first limit member in the corresponding limit grooves, the first limit member can limit the distance between the two limit grooves, that is, limit the size of the opening. Even if the first nut becomes loose after long-term use, the distance between the two limit grooves will not increase, thereby reducing the possibility of slight movement of the handlebar in the stem and improving stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A first stereoscopic diagram of a stem provided in an embodiment of the present utility model;

[0036] Figure 2 A second perspective schematic diagram of a stem provided by an embodiment of the present utility model;

[0037] Figure 3 A three-dimensional diagram of the stem provided by an embodiment of the present utility model without the second limiting member;

[0038] Figure 4 A first three-dimensional disassembled schematic diagram of a stem provided by an embodiment of the present utility model;

[0039] Figure 5A second three-dimensional disassembled schematic diagram of the stem provided by an embodiment of the present utility model;

[0040] Figure 6 The embodiment of the present utility model provides Figure 4 An enlarged view of part A in FIG;

[0041] Figure 7 A three-dimensional diagram of the compression assembly and the abutment block provided in an embodiment of the present utility model.

[0042] Icons: 1. Ring clamp; 101. Opening; 2. First limiting member; 201. First connecting rod; 202. Limiting block; 203. Fifth screw hole; 3. First screw; 4. Limiting groove; 5. First through hole; 6. First screw hole; 7. Second limiting member; 701. Baffle; 702. Threaded rod; 703. Third screw hole; 8. Mounting tube; 9. First groove; 10. Second groove; 11. Abutment block; 12. First side wall; 13. Third through hole; 14. First clamping block; 15. Second clamping block; 16. Second screw; 17. Second connecting rod. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] like Figure 1-Figure 7 As shown, an embodiment of the present invention provides a handle, comprising an annular clamp 1, a first limiting member 2 and a first screw 3;

[0045] The annular clamp 1 has an opening 101, and both sides of the opening 101 are provided with limiting grooves 4 connected to the opening 101;

[0046] The lengths of the two limiting grooves 4 on one side close to the opening 101 are both shorter than the lengths of the other side;

[0047] The two ends of the first limiting member 2 are respectively located in the two limiting grooves 4, and the first limiting member 2 is used to limit the distance between the two limiting grooves 4;

[0048] A first through hole 5 and a first screw hole 6 are respectively formed on both sides of the opening 101. The first screw 3 passes through the first through hole 5 and is screwed into the first screw hole 6.

[0049] The length direction of the limiting groove 4 is perpendicular to the length direction of the first screw 3 .

[0050] Place the handlebar into the annular clamp 1, pass the first screw 3 through the first through hole 5 and then screw it into the first screw hole 6. During the locking process of the annular clamp 1 and the first screw 3, the distance between the two limiting grooves 4 is reduced, and the handlebar is locked into the annular clamp 1. Then, by placing the two ends of the first limiting member 2 in the corresponding limiting grooves 4, the first limiting member 2 can limit the distance between the two limiting grooves 4, that is, limit the size of the opening 101. Even if the first nut becomes loose after long-term use, the distance between the two limiting grooves 4 will not increase, thereby reducing the possibility of slight movement of the handlebar in the stem and improving stability and safety.

[0051] The annular clamp 1 can be made of aluminum alloy, has certain elasticity and strength, and can lock the handlebar under the action of the first screw 3. The annular clamp 1 has a through cavity connected to the opening 101, and the handlebar is located in the through cavity.

[0052] In this embodiment, the length direction of the limiting groove 4 is the same as the length direction of the annular clamp 1. The limiting groove 4 is a T-shaped groove.

[0053] Furthermore, the annular clamp 1 used in this embodiment only needs to be locked by two first screws 3 during actual use, which makes the installation more efficient, quicker and more convenient, and reduces costs.

[0054] According to an embodiment of the present invention, the first limiting member 2 includes a first connecting rod 201 and two limiting blocks 202 , and the two limiting blocks 202 are respectively connected to the two ends of the first connecting rod 201 ;

[0055] The two limiting blocks 202 are respectively located in the two limiting grooves 4;

[0056] The limiting block 202 is slidably connected in the limiting groove 4 .

[0057] The limiting block 202 can slide along the width direction of the limiting groove 4.

[0058] According to one embodiment of the present invention, the first connecting rod 201 is a screw, one end of which is fixedly connected to one of the limit blocks 202, and a second screw hole is provided on the other limit block 202, and the other end of the screw is screwed into the second screw hole.

[0059] The worker holds a limit block 202 in each hand and twists the two limit blocks 202 in opposite directions, so that the screw rotates and moves in the second screw hole, and adjusts the distance between the two limit blocks 202 until the appropriate spacing is reached (after each adjustment is completed, the length directions of the two limit blocks 202 are the same), and then inserts the two limit blocks 202 into the corresponding limit grooves 4 of the annular clamp 1 that has been fixed by the first screw 3, and then limits them for the second time.

[0060] The first limiting member 2 is configured as an adjustable limiting structure, making it more widely applicable and suitable for locking handles of different sizes. This improves practicality. Furthermore, since the limiting block 202 is slidably connected within the limiting slot 4, the limiting block 202 can only slide along the length of the limiting slot 4 and cannot rotate within the limiting slot 4. Therefore, when the two first limiting blocks 202 are respectively located in the corresponding limiting slots 4, the distance between them does not change, ensuring stability during use.

[0061] Of course, in this embodiment, the two ends of the first connecting rod 201 are fixedly connected to the two limit blocks 202, and the two limit blocks 202 are respectively located in the two limit grooves 4, thereby making the distance between the two limit grooves 4 immutable. This does not deviate from the design concept of the present invention and therefore should fall within the scope of protection of the present invention.

[0062] According to an embodiment of the present invention, the stem further includes a second limiting member 7 , which is disposed on one side of the limiting slot 4 . The second limiting member 7 is used to limit the limiting block 202 from being separated from the limiting slot 4 .

[0063] According to one embodiment of the present invention, the second limiting member 7 includes a baffle 701 and a threaded rod 702, the baffle 701 is connected to one end of the threaded rod 702, a third screw hole 703 is opened on the side wall of the annular clamp 1, and the other end of the threaded rod 702 is screwed into the third screw hole 703.

[0064] Since the limit block 202 is slidably connected in the limit groove 4, when the first screw 3 is not loosened, the limit block 202 may slide out of the limit groove 4. In order to prevent this phenomenon from happening, the limit groove 4 is blocked by setting a baffle 701, and the threaded rod 702 is screwed into the third screw hole 703 of the annular clamp 1, which makes it easy to remove the baffle 701 or rotate it to other positions so that it does not block the limit groove 4, making it easy to quickly remove or install the handlebar from the stem, and the work efficiency is high.

[0065] According to one embodiment of the present invention, a fifth screw hole 203 is provided on the limit block 202. By screwing a tool such as a bolt into the fifth screw hole 203, the first limit member 2 can be easily pulled out of the limit groove 4, making it easy to disassemble the annular clamp 1 and the handle.

[0066] According to one embodiment of the present invention, the stem further comprises a mounting tube 8 and a second connecting rod 17 connected thereto;

[0067] The mounting tube 8 has a lumen for receiving the front fork stem, and the second connecting rod 17 has a receiving groove in communication with the lumen.

[0068] An abutment block 11 and a pressing assembly are provided in the accommodating groove. The abutment block 11 is connected to the pressing assembly. The pressing assembly is used to adjust the distance from the abutment block 11 to the axis of the mounting tube 8 .

[0069] The connecting parts in a traditional stem include a rod body and a clamp. One end of the rod body is connected to the clamp, and the other end is connected to the spherical clamp. The opening of the clamp is locked and fixed by screws, thereby fixing the front fork stem to the stem. However, this method also has the problem that the screws are easy to loosen, causing the clamp of the stem to shake inside the front fork stem.

[0070] In this embodiment, the abutment block 11 and the clamping assembly are provided, and the distance from the abutment block 11 to the axis of the mounting tube 8 is changed by the clamping assembly, replacing the original fixing method of only fixing by screws, which has a better effect and the abutment point is less likely to loosen.

[0071] According to one embodiment of the present invention, the receiving groove includes a first groove 9 and a second groove 10 that are connected;

[0072] The first groove 9 is used to limit the abutment block 11 to move only along the first direction, and the first groove 9 is located between the lumen and the second groove 10;

[0073] The first direction, the length direction of the annular clamp 1 and the length direction of the mounting tube 8 are perpendicular to each other.

[0074] According to one embodiment of the present invention, Figure 7 As shown, the pressing assembly includes a first pressing block 14, a second pressing block 15 and a second screw 16;

[0075] The second groove 10 is used to limit the first pressing block 14 and the second pressing block 15 to move only in a direction perpendicular to the first direction;

[0076] The abutment block 11 is a tapered block, and the cross-sectional area of ​​the side of the tapered block away from the axis of the mounting tube 8 is smaller than the cross-sectional area of ​​the other side thereof;

[0077] The conical block has a first side wall 12 and a second side wall opposite to each other, a first pressing block 14 abuts against the first side wall 12, and a second pressing block 15 abuts against the second side wall;

[0078] A second through hole is formed on the first pressing block 14 , and a third through hole 13 is formed on the conical block. The second screw 16 passes through the second through hole and the third through hole 13 in sequence and is screwed to the second pressing block 15 .

[0079] In this embodiment, the first direction is perpendicular to the axial direction of the installation tube 8 , and the first direction is perpendicular to the length direction of the annular clamp 1 .

[0080] The length direction of the mounting tube 8, the length direction of the annular clamp 1, and the length direction of the second connecting rod 17 are perpendicular to each other. The second connecting rod 17 is connected to the annular clamp 1. The first direction is the same as the length direction of the second connecting rod 17.

[0081] The size of the third through hole 13 is larger than that of the second screw 16 , so that the abutting block 11 can move.

[0082] The abutting block 11 has an abutting portion for abutting against the side wall of the front fork stem. A plurality of arc-shaped strip blocks are arranged at intervals on the abutting portion, which can increase the friction at the contact position with the front fork stem and improve stability.

[0083] The second pressing block 15 is first placed in the second groove 10, the abutting block 11 is passed through the tube cavity to the specified position, and the abutting block 11 is moved along the first direction so that the third through hole 13 of the abutting block 11 enters the second groove 10, and then the first pressing block 14 is placed in the second groove 10, and the second screw 16 passes through the second through hole and the third through hole 13 in sequence and is screwed to the second pressing block 15. Since the second pressing block 15 is limited by the second groove 10, it can only slide along the first direction, so that when the second screw 16 is screwed, the second pressing block 15 moves in the direction close to the first pressing block 14 under the dual action of the second screw 16 and the second groove 10, and the first pressing block 14 is driven by the second screw 16 to approach the second pressing block 15. Figure 7 As shown, since the abutment block 11 is a conical block with a first side wall 12 and a second side wall opposite to each other, the first clamping block 14 and the second clamping block 15 are respectively fitted with the first side wall 12 and the second side wall. Then, when the first clamping block 14 and the second clamping block 15 approach each other, the abutment block 11 gradually moves in a direction close to the axis of the mounting tube 8, tightly abutting the side wall of the front fork stem inserted in the mounting tube 8, and its retention effect is better.

[0084] According to one embodiment of the present invention, a first countersunk hole is provided at one end of the first through hole 5 away from the first screw hole 6. The first countersunk hole can accommodate the head of the first screw 3, which improves the appearance and prevents the head of the first screw 3 from scratching people, thereby improving safety.

[0085] In the description of this utility model, it should be noted that the terms "upper" and "lower" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0086] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stem, characterized in that: It comprises an annular clamp (1), a first position-limiting member (2) and a first screw (3); The annular clamp (1) has an opening (101), and both sides of the opening (101) are provided with limiting grooves (4) connected to the opening (101); The length of the two limiting grooves (4) on one side close to the opening (101) is shorter than the length of the other side; The two ends of the first limiting member (2) are respectively located in the two limiting grooves (4), and the first limiting member (2) is used to limit the distance between the two limiting grooves (4); A first through hole (5) and a first screw hole (6) are respectively provided on both sides of the opening (101); the first screw (3) passes through the first through hole (5) and is screwed to the first screw hole (6); The length direction of the limiting groove (4) is perpendicular to the length direction of the first screw (3).

2. A stem according to claim 1, characterized in that: The first limiting member (2) comprises a first connecting rod (201) and two limiting blocks (202), wherein the two limiting blocks (202) are respectively connected to two ends of the first connecting rod (201); The two limiting blocks (202) are respectively located in the two limiting grooves (4); The limiting block (202) is slidably connected in the limiting groove (4).

3. A stem according to claim 2, characterized in that: The first connecting rod (201) is a screw rod, one end of which is fixedly connected to one of the limit blocks (202), and a second screw hole is provided on the other limit block (202), and the other end of the screw rod is screwed into the second screw hole.

4. The stem according to claim 2, characterized in that: The stem further comprises a second limiting member (7), the second limiting member (7) being arranged on one side of the limiting slot (4), and the second limiting member (7) being used to limit the limiting block (202) from being separated from the limiting slot (4).

5. The stem according to claim 4, characterized in that: The second limiting member (7) includes a baffle (701) and a threaded rod (702), wherein the baffle (701) is connected to one end of the threaded rod (702), a third screw hole (703) is provided on the side wall of the annular clamp (1), and the other end of the threaded rod (702) is screwed into the third screw hole (703).

6. The stem according to claim 1, characterized in that: The stem further comprises a mounting tube (8) and a second connecting rod (17) connected thereto; The mounting tube (8) has a tube cavity for accommodating the front fork vertical tube, and the second connecting rod (17) is provided with an accommodating groove communicating with the tube cavity; An abutment block (11) and a pressing assembly are provided in the accommodating groove. The abutment block (11) is connected to the pressing assembly. The pressing assembly is used to adjust the distance between the abutment block (11) and the axis of the mounting tube (8).

7. The stem according to claim 6, characterized in that: The receiving groove comprises a first groove (9) and a second groove (10) which are connected; The first groove (9) is used to limit the abutment block (11) to move only in a first direction, and the first groove (9) is located between the lumen and the second groove (10); The first direction, the length direction of the annular clamp (1) and the length direction of the mounting tube (8) are perpendicular to each other.

8. The stem according to claim 7, characterized in that: The pressing assembly comprises a first pressing block (14), a second pressing block (15) and a second screw (16); The second groove (10) is used to limit the first pressing block (14) and the second pressing block (15) to move only in a direction perpendicular to the first direction; The abutment block (11) is a conical block, and the cross-sectional area of ​​the side of the conical block away from the axis of the mounting tube (8) is smaller than the cross-sectional area of ​​the other side thereof; The conical block has a first side wall (12) and a second side wall opposite to each other, the first pressing block (14) abuts against the first side wall (12), and the second pressing block (15) abuts against the second side wall; A second through hole is provided on the first pressing block (14), a third through hole (13) is provided on the conical block, and the second screw (16) passes through the second through hole and the third through hole (13) in sequence and is screwed to the second pressing block (15).

9. The stem according to claim 2, characterized in that: A fifth screw hole (203) is provided on the limiting block (202).

10. The stem according to claim 1, characterized in that: A first countersunk hole is provided at one end of the first through hole (5) away from the first screw hole (6).

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