CN220786038U

CN220786038U - Vertical cylinder brake upper pump with force adjusting function

Info

Publication number: CN220786038U
Application number: CN202321909908.5U
Authority: CN
Inventors: 陈永刚
Original assignee: Ningbo Luichi Sports Goods Co ltd
Current assignee: Ningbo Luichi Sports Goods Co ltd
Priority date: 2023-07-19
Filing date: 2023-07-19
Publication date: 2024-04-16
Anticipated expiration: 2033-07-19

Abstract

An upper vertical cylinder brake pump with a force adjusting function comprises a vertical cylinder brake pump body; the brake handle is pivoted on the vertical cylinder brake pump body; the piston push rod assembly is in transmission fit with the brake handle through a transmission shaft and at least partially stretches into the vertical cylinder brake pump body, and the transmission shaft is arranged between a position where a user holds the brake handle and a pivot point of the brake handle and the vertical cylinder brake pump body; the transmission shaft is provided with a handle connecting hole and a push rod connecting hole which are mutually intersected, and the push rod connecting hole is arranged in a deflection manner relative to the handle connecting hole. According to the utility model, through the deflection arrangement of the push rod connecting hole relative to the handle connecting hole, when the transmission shaft is assembled in the forward direction and assembled in the reverse direction, output force arms with different lengths are obtained, so that the ratio of the input force arm to the output force arm is increased or reduced, and a user can adjust the actual assembly mode of the transmission shaft according to the self grip strength and the requirement.

Description

Vertical cylinder brake upper pump with force adjusting function

Technical Field

The utility model relates to the technical field of oil pressure brake upper pumps, in particular to a vertical cylinder brake upper pump with a force adjusting function.

Background

In vehicles such as bicycles, a device for controlling a brake is a brake (commonly called a brake handle), which is a handle when braking, and a brake handle is used for a bicycle brake handle, a baby carrier handle, an electric car brake handle, a motorcycle brake handle, and the like. Conventionally, in the process of installing brake steel wires of vehicles such as electric vehicles, bicycles, tricycles and the like, conventional tools such as wire cutters, wrenches and the like are generally used for tensioning in cooperation with brute force. This conventional wire tensioning method has many disadvantages and is difficult to operate. For example: the steel wire is easy to slip from the wire pliers or the wrench, and the tightness is not easy to adjust, which is time-consuming and labor-consuming.

In order to pursue braking efficiency and accuracy, currently, oil pressure type brakes are widely adopted for commercial vehicles (such as automobiles, locomotives and bicycles), and the principle is that one end of a brake oil pipe is combined with the output end of an internal oil path of a brake handle seat, the other end of the brake oil pipe is combined with a disc brake, and a piston rod of the internal oil path can be pushed in a linkage manner by the pressing of a handle, so that the pressure in the oil path acts on the disc brake through the brake oil pipe, and the disc brake is formed.

In the prior art, refer to patent document CN218055493U, a brake crank with adjustable holding distance is disclosed, comprising a brake handle seat and a handle, wherein the handle comprises a connecting block and a handle, the connecting block is rotationally connected with the brake handle seat, the handle is rotationally connected with the connecting block in a matched manner, a positioning device is arranged between the handle and the connecting block, and the positioning device positions the relative positions of the handle and a connecting hole after the handle moves. The brake handle with adjustable holding distance can be used for enabling a user to adjust the position of the handle according to the size of the user's hand so as to achieve the braking effect of timely braking in emergency, reduce potential safety hazards, and is simple in structure and convenient to operate. See patent document CN216468278U, disclose a grip adjustable non-motor vehicle handle, including brake handle, pump body subassembly includes the pump body, piston subassembly, be equipped with between pump body and the piston subassembly and hold the distance adjustment changeover portion, hold distance adjustment changeover portion middle part and pump body articulated, one end is articulated with brake handle and piston subassembly simultaneously, the linkage of the other end has and holds distance adjustment subassembly, hold distance adjustment subassembly includes adjusting bolt, adjusting nut, hold distance adjustment changeover portion tip is equipped with the counter bore, brake handle tip is equipped with the through groove that can with adjusting bolt screw thread intermittent type complex, adjusting bolt's screw thread portion passes counter bore and through groove and adjusting bolt's big end distributes in counter bore one end simultaneously, adjusting nut distributes in brake handle upper portion and with adjusting bolt threaded connection. The beneficial effects of the utility model are as follows: a grip-adjustable non-motor vehicle handle is provided.

As shown in the above patent technology, it was found after comparative analysis that it had at least the following drawbacks: 1. only the function of adjusting the holding distance is achieved, and the function of adjusting the force arm is not achieved; 2. for the same user, the brake handle in the prior art cannot adjust the ratio relation between the stroke of the piston push rod assembly and the thrust of the piston when the brake is carried out according to the self requirement, and cannot adjust the ratio relation between the grip strength of the handle and the thrust of the piston; 3. in order to meet the demands of different users on grip strength and piston thrust, the pump is needed to be customized in braking, namely, if a single user needs braking with different braking effects, a plurality of different pumps are needed to be purchased in braking, and the use cost of the user is greatly increased.

The utility model mainly aims at improving and upgrading the defects existing in the structure of the three-cylinder brake, and is described in the specification.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the vertical cylinder brake upper pump with a force adjusting function.

The technical scheme for solving the technical problems is as follows: an upright cylinder brake pump-up with force adjustment function, comprising:

a vertical cylinder brake pump body;

the brake handle is pivoted on the vertical cylinder brake pump body;

the piston push rod assembly is in transmission fit with the brake handle through a transmission shaft and at least partially stretches into the vertical cylinder brake pump body, and the transmission shaft is arranged between a position where a user holds the brake handle and a pivot point of the brake handle and the vertical cylinder brake pump body;

the pivot point of the brake handle and the vertical cylinder brake pump body forms an input force arm from the position where the user holds the brake handle, and the pivot point of the brake handle and the vertical cylinder brake pump body forms an output force arm from the position where the brake handle and the piston push rod assembly are connected;

the transmission shaft is provided with a handle connecting hole and a push rod connecting hole which are mutually intersected, and the push rod connecting hole is arranged in a deflection manner relative to the handle connecting hole;

when the transmission shaft is assembled in the forward direction, the push rod connecting hole is positioned at the inner side of the handle connecting hole so as to obtain a longer output force arm;

when the transmission shaft is reversely assembled, the push rod connecting hole is positioned at the outer side of the handle connecting hole, so that a shorter output force arm is obtained.

With respect to the further arrangement of the above technical solution, the handle connecting hole is arranged along the horizontal direction, and the push rod connecting hole is arranged along the vertical direction.

With respect to the further arrangement of the technical scheme, one side of the transmission shaft extends outwards to form an eccentric part, and the push rod connecting hole is positioned at the eccentric part.

In some embodiments of the present utility model, a first limiting fastener is further included, a first rotating bearing is disposed between the transmission shaft and the brake handle, and the first limiting fastener passes through the first rotating bearing and is fixed to the handle connecting hole.

In some embodiments of the utility model, a second limit fastener and a second rotational bearing are also included;

the brake handle is provided with a handle pivot hole, the vertical cylinder brake pump body is provided with a pump body pivot hole, the second rotating bearing is arranged in the handle pivot hole, and the second limiting fastener penetrates through the second rotating bearing and is fixed with the pump body pivot hole.

Preferably, the handle connecting hole and the push rod connecting hole are threaded holes.

In some embodiments of the present utility model, the piston rod assembly includes a piston rod body, an operating member coupled to an end of the piston rod body, and a piston oil seal sleeved on the piston rod body.

The utility model has the beneficial effects that:

1. through the deflection setting of push rod connecting hole relative handle connecting hole, when the transmission shaft forward assembly and reverse assembly, obtain the output arm of force of different length to increase or reduce the ratio of input arm of force and output arm of force, the user can be according to self grip size and demand adjustment transmission shaft actual assembly mode.

2. The pump can meet various use requirements of different users on a single brake, the use and modification cost of the users is reduced, and the product competitiveness is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model (forward assembly).

Fig. 2 is an exploded view of the present utility model (forward assembly).

Fig. 3 is a schematic view of the drive shaft in a forward direction.

Fig. 4 is a schematic view of the overall structure of the present utility model (reverse assembly).

Fig. 5 is an exploded view of the present utility model (reverse assembly).

Fig. 6 is a schematic view of the structure of the propeller shaft in the reverse direction.

Fig. 7 is a cross-sectional view of a propeller shaft in accordance with the present utility model.

Fig. 8 is a schematic view of a prior art propeller shaft.

Fig. 9 is a cross-sectional view of a prior art propeller shaft.

Fig. 10 is a schematic diagram showing the comparison of the output moment arm during forward and reverse assembly.

FIG. 11 is a schematic diagram of the points of action of grip and piston thrust.

Fig. 12 is a schematic view of the direction of force application of grip force and piston thrust force.

In the figure: 1. a vertical cylinder brake pump body; 101. a pump body pin joint hole; 2. a brake handle; 201. a handle pivot hole; 3. a piston push rod assembly; 301. a piston push rod body; 302. an operating member; 303. a piston oil seal; 4. a transmission shaft; 401. a eccentric portion; 402. a handle connection hole; 403. a push rod connecting hole; a. the user holds the brake handle; b. a pivot point; c. a connection point; r1, an input force arm;

r2, outputting a force arm; f1, grip strength; f2, piston thrust; 5. a first limit fastener; 6. a first rotating bearing; 7. a second limit fastener; 8. and a second rotating bearing.

Detailed Description

The utility model will be further described with reference to the drawings and specific examples. It should be noted that the examples are only specific to the present utility model and are for the purpose of better understanding of the technical solutions of the present utility model to those skilled in the art, and should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, as the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used for convenience of description and simplicity of description, only as to the orientation or positional relationship shown in the drawings, and not as an indication or suggestion that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the description of the present utility model, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 to 12, an upper cylinder brake pump with a force adjusting function includes: a vertical cylinder brake pump body 1; a brake handle 2 pivoted to the vertical cylinder brake pump body 1; the piston push rod assembly 3 is in transmission fit with the brake handle 2 through a transmission shaft 4 and at least partially extends into the vertical cylinder brake pump body 1, and the transmission shaft 4 is arranged between a position where a user holds the brake handle 2 and a pivot point b of the brake handle 2 and the vertical cylinder brake pump body 1; the input force arm R1 is formed from the pivot point b of the brake handle 2 and the vertical cylinder brake pump body 1 to the position where the user holds the brake handle 2, and the output force arm R2 is formed from the pivot point b of the brake handle 2 and the vertical cylinder brake pump body 1 to the connection point c between the brake handle 2 and the piston push rod assembly 3. Unlike the prior art, the transmission shaft 4 is provided with a handle connecting hole 402 and a push rod connecting hole 403 which are mutually intersected, and the push rod connecting hole 403 is arranged in a deflection manner relative to the handle connecting hole 402.

In the prior art, the central axis of the push rod connecting hole 403 is orthogonal to the central axis of the handle connecting hole 402, and the central axes of the push rod connecting hole 403 and the handle connecting hole 402 are staggered.

Under the same braking effect, the ratio of the input force arm R1 to the output force arm R2 is increased, so that the required holding force F1 is smaller, and the stroke of the piston push rod assembly 3 is shorter; the ratio of the input force arm R1 to the output force arm R2 is reduced, so that the required grip force F1 is larger, and the stroke of the piston push rod assembly 3 is longer. Based on the property that the push rod connecting hole 403 is biased relative to the handle connecting hole 402, the usage mechanism of this embodiment is:

when the transmission shaft 4 is assembled in the forward direction, the push rod connection hole 403 is located inside the handle connection hole 402, so that the push rod connection hole 403 is further away from the pivot point b (specifically, the pivot point b of the brake handle 2 and the upright brake pump body 1) to obtain a longer output force arm R2. In this state, the user needs to output a large grip force F1 in order to obtain an equal amount of piston thrust force F2.

When the transmission shaft 4 is reversely assembled, the push rod connection hole 403 is located at the outer side of the handle connection hole 402, so that the push rod connection hole 403 is closer to the pivot point b (specifically, the pivot point b of the brake handle 2 and the upright brake pump body 1) to obtain a shorter output force arm R2. In this state, the user only needs to output a small grip force F1 in order to obtain an equal amount of piston thrust force F2.

The transmission shaft 4 and the associated accessories are disassembled and then rotated for 180 degrees, so that the forward assembly and the reverse assembly can be switched, and the transmission shaft 4 and the associated accessories are reassembled after the switching.

In the present utility model, the handle connecting hole 402 is arranged along the horizontal direction, and the push rod connecting hole 403 is arranged along the vertical direction, so that the direction of the arrangement of the hole of the pump on the existing vertical cylinder brake is the same as that of the hole of the pump on the existing vertical cylinder brake, and the details are not repeated here.

In the prior art, the transmission shaft 4 is a regular symmetrical part, the push rod connecting hole 403 formed on the transmission shaft 4 is located in the vertical central area of the transmission shaft 4, and the handle connecting hole 402 is located in the horizontal central area of the transmission shaft 4, but the structure of the prior transmission shaft 4 does not have enough space to meet the requirement of deflection setting of the push rod connecting hole 403 required in the present utility model. In order to solve the spatial defect, the preferred solution provided by this embodiment is: an eccentric part 401 is formed by extending outwards at one side of the transmission shaft 4, and the push rod connecting hole 403 is positioned at the eccentric part 401. Therefore, the space provided by the eccentric part 401 does not penetrate the transmission shaft 4 when the push rod connecting hole 403 which is arranged in a deflection way is formed, so that the space requirement, the deflection setting requirement and the strength requirement of the transmission shaft 4 are met.

Preferably, the handle connecting hole 402 and the push rod connecting hole 403 are threaded holes, and the threaded connection mode is easy to process and can achieve a stable connection and fixation effect.

Example two

In order to convert the rotational force of the brake handle 2 into the downward force of the piston push rod assembly 3, the transmission structure adopted is: referring to fig. 1-2 and fig. 4-5, the brake device further comprises a first limit fastener 5, a first rotating bearing 6 is arranged between the transmission shaft 4 and the brake handle 2, and the first limit fastener 5 passes through the first rotating bearing 6 and then is fixed with the handle connecting hole 402.

In order to realize the rotation of the brake handle relative to the brake pump body, the adopted preferable structural scheme is as follows: referring to fig. 1-2 and fig. 4-5, the device further comprises a second limit fastener 7 and a second rotating bearing 8; the brake handle 2 is provided with a handle pivot hole 201, the vertical cylinder brake pump body 1 is provided with a pump body pivot hole 101, the second rotating bearing 8 is arranged in the handle pivot hole 201, and the second limiting fastener 7 passes through the second rotating bearing 8 and then is fixed with the pump body pivot hole 101.

Example III

Referring to fig. 10, the piston rod assembly 3 includes a piston rod body 301, an operating member 302 connected to the end of the piston rod body 301, and a piston oil seal 303 sleeved on the piston rod body 301, based on the structure of any of the foregoing embodiments. The piston push rod body 301 can move relative to the brake pump body through the operating member 302, so that the initial position and pushing stroke of the piston push rod body 301 can be adjusted to meet the individual requirements of different users.

It should be noted that other technical solutions of the present utility model belong to the prior art, and are not described in detail.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. An upright cylinder brake pump-up with force adjustment function, comprising:

a vertical cylinder brake pump body (1);

a brake handle (2) pivoted on the vertical cylinder brake pump body (1);

the piston push rod assembly (3) is in transmission fit with the brake handle (2) through a transmission shaft (4) and at least partially stretches into the vertical cylinder brake pump body (1), and the transmission shaft (4) is arranged between a position where a user holds the brake handle (2) and a pivot point (b) of the brake handle (2) and the vertical cylinder brake pump body (1);

the input force arm (R1) is formed from the pivot point (b) of the brake handle (2) and the vertical cylinder brake pump body (1) to the position from which the user holds the brake handle (2), and the output force arm (R2) is formed from the pivot point (b) of the brake handle (2) and the vertical cylinder brake pump body (1) to the connection point (c) between the brake handle (2) and the piston push rod assembly (3);

the method is characterized in that: the transmission shaft (4) is provided with a handle connecting hole (402) and a push rod connecting hole (403) which are mutually intersected, and the push rod connecting hole (403) is arranged in a deflection way relative to the handle connecting hole (402);

when the transmission shaft (4) is assembled in the forward direction, the push rod connecting hole (403) is positioned at the inner side of the handle connecting hole (402) so as to obtain a longer output force arm (R2);

when the transmission shaft (4) is reversely assembled, the push rod connecting hole (403) is positioned at the outer side of the handle connecting hole (402) so as to obtain a shorter output force arm (R2).

2. The vertical cylinder brake pump with force adjustment function according to claim 1, wherein: the handle connecting hole (402) is arranged along the horizontal direction, and the push rod connecting hole (403) is arranged along the vertical direction.

3. The vertical cylinder brake pump with force adjustment function according to claim 1, wherein: one side of the transmission shaft (4) extends outwards to form an eccentric part (401), and the push rod connecting hole (403) is positioned at the eccentric part (401).

4. The vertical cylinder brake pump with force adjustment function according to claim 1, wherein: the novel brake is characterized by further comprising a first limiting fastener (5), a first rotating bearing (6) is arranged between the transmission shaft (4) and the brake handle (2), and the first limiting fastener (5) penetrates through the first rotating bearing (6) and then is fixed with the handle connecting hole (402).

5. The vertical cylinder brake pump with force adjustment function according to claim 1, wherein: the device also comprises a second limit fastener (7) and a second rotating bearing (8);

the brake handle (2) is provided with a handle pivot hole (201), the vertical cylinder brake pump body (1) is provided with a pump body pivot hole (101), the second rotating bearing (8) is arranged in the handle pivot hole (201), and the second limiting fastener (7) penetrates through the second rotating bearing (8) and then is fixed with the pump body pivot hole (101).

6. The vertical cylinder brake pump with force adjustment function according to claim 1, wherein: the handle connecting hole (402) and the push rod connecting hole (403) are threaded holes.

7. The cylinder brake pump with force adjustment function according to any one of claims 1-6, characterized in that: the piston push rod assembly (3) comprises a piston push rod body (301), an operating piece (302) connected to the tail end of the piston push rod body (301), and a piston oil seal (303) sleeved on the piston push rod body (301).