Oil pressure brake device

Abstract

The utility model provides an oil pressure brake device which comprises a hydraulic brake upper pump and brake calipers, the hydraulic brake upper pump is connected with the brake calipers through a hydraulic pipeline, the hydraulic brake upper pump comprises an upper pump main body, an oil storage chamber, a first plug and a second plug, an oil cylinder is arranged in the upper pump main body, and the oil storage chamber is connected with the upper pump main body. The oil cylinder is communicated with the brake calipers through a hydraulic pipeline; the oil storage chamber is connected with the upper pump body, an oil storage cavity is formed in the oil storage chamber and communicated with the oil cylinder, an oil filling hole is formed in the upper side of the oil storage chamber, an opening is formed in one end of the oil storage chamber, the oil storage cavity is in a stepped hole shape and comprises a small cavity and a large cavity, the diameter of the small cavity is smaller than that of the large cavity, the small cavity is formed in the side, opposite to the opening, of the large cavity, and the oil filling hole is formed in the side wall of the small cavity. The first plug is suitable for being arranged in the oil filling hole to plug the oil filling hole; the second plug is suitable for being arranged in the opening and blocking the opening. According to the oil pressure brake device provided by the utility model, the oil storage quantity under the same volume is increased while the sealing performance of the oil storage chamber is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical braking technology, specifically relating to a hydraulic brake device. Background Technology

[0002] Hydraulic brake systems are widely used in bicycles, electric vehicles, and electric motorcycles. The principle is to use oil as a medium, with the oil cylinder of the brake pump pressurizing and replenishing the oil, and then transmitting the pressurized oil through the oil pipe to the brake caliper to rub against the disc and achieve the braking effect.

[0003] The hydraulic fluid in a hydraulic brake system will be lost during use. Existing brake systems typically have an oil reservoir in the upper brake pump to store the fluid and connect it to the cylinder to keep the cylinder full of fluid and thus provide sufficient braking force.

[0004] The filler hole of the reservoir in the existing brake pump is usually sealed with a sealing screw. In order to ensure the sealing performance, the filler hole is usually required to be relatively long to provide sufficient sealing area. This requires the reservoir to have a thick wall, which in turn results in a smaller reservoir volume and a smaller oil storage capacity, leading to a shorter service life per fill. Utility Model Content

[0005] This utility model provides a hydraulic braking device, which aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a hydraulic brake device, including a hydraulic brake upper pump and a brake caliper, wherein the hydraulic brake upper pump is connected to the brake caliper through a hydraulic pipeline, and the hydraulic brake upper pump includes:

[0007] The upper pump body has an internal hydraulic cylinder, which is connected to the brake caliper via hydraulic lines; and

[0008] An oil storage chamber is connected to the upper pump body. An oil storage cavity is opened in the oil storage chamber and is connected to the oil cylinder. An oil filling hole is opened on the upper side of the oil storage chamber and an opening is provided at one end. The oil storage cavity is in the shape of a stepped hole, including a small cavity and a large cavity. The diameter of the small cavity is smaller than the diameter of the large cavity. The small cavity is located on the side of the large cavity away from the opening. The oil filling hole is opened on the side wall of the small cavity.

[0009] A first plug is adapted to be disposed within the filler hole to block the filler hole; and

[0010] A second plug is adapted to be placed inside the opening to block the opening.

[0011] In one possible implementation of the hydraulic brake device provided by this utility model, the oil reservoir is inclined.

[0012] In one possible implementation of the hydraulic brake device provided by this utility model, the hydraulic brake pump further includes an oil bladder, which is disposed in the oil storage chamber.

[0013] In one possible implementation of the hydraulic brake device provided by this utility model, the oil bladder is cross-shaped, with a retainer at one end and a side wall at the other end abutting against the side wall of the small cavity; a retaining ring is provided on the side wall of the large cavity, and the retainer of the oil bladder is located between the retaining ring and the opening, abutting against the retaining ring.

[0014] In one possible implementation of the hydraulic brake device provided by this utility model, the hydraulic brake pump further includes a pressure pad, which is sandwiched between the card seat and the second plug.

[0015] In one possible implementation of the hydraulic brake device provided by this utility model, the upper pump body is also integrally provided with a clamp and a support, the clamp is located in the middle of the upper pump body, and the support is located at the tail of the upper pump body.

[0016] In one possible implementation of the hydraulic brake device provided by this utility model, the upper pump body further includes a push piston, a brake lever handle, a universal joint, a push rod, and a return spring. The push piston is slidably disposed within the hydraulic cylinder. The brake lever handle is rotatably connected to the upper pump body. The universal joint is rotatably engaged with the brake lever. One end of the push rod is connected to the push piston, and the other end is provided with a threaded adjustment section. The threaded adjustment section passes through the universal joint and is threadedly engaged with the universal joint. The return spring is disposed within the hydraulic cylinder and at the end of the push piston facing away from the push rod. One end of the return spring abuts against the push piston, and the other end abuts against the hydraulic cylinder.

[0017] In one possible implementation of the hydraulic brake device provided by this utility model, the upper pump body and the oil reservoir are integrally connected.

[0018] In one possible implementation of the hydraulic brake device provided by this utility model, the upper pump body and the oil reservoir are made of forged aluminum.

[0019] The beneficial effects of the hydraulic brake device provided by this utility model are as follows: Compared with the prior art, the hydraulic brake device provided by this utility model has a stepped hole-shaped oil storage chamber in the oil storage chamber of the hydraulic brake pump, and the oil filling hole is opened on the side wall corresponding to the small cavity, so as to ensure the sealing effect through the thicker wall; at the same time, the oil storage capacity is increased by the large cavity with a larger diameter than the small cavity. That is, the hydraulic brake device provided by this utility model increases the oil storage capacity in the same volume while ensuring the sealing of the oil storage chamber, effectively improving the service life of a single oil filling. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the hydraulic brake device provided in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of the hydraulic brake pump in the hydraulic brake device provided in an embodiment of the present utility model;

[0022] Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle;

[0023] Figure 4 A partial exploded structural diagram of the hydraulic brake pump in the hydraulic brake device provided in this embodiment of the utility model;

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Hydraulic brake upper pump; 20. Brake caliper; 11. Upper pump body; 111. Hydraulic cylinder;

[0026] 112. Clamp; 113. Support; 114. Hydraulic piston; 115. Brake lever;

[0027] 116. Universal joint; 117. Push rod; 1171. Threaded adjustment section; 118. Return spring;

[0028] 12. Oil reservoir; 121. Small chamber; 122. Large chamber; 123. Retaining ring; 13. First plug;

[0029] 14. Second plug; 15. Oil bladder; 151. Card holder; 16. Pressure pad. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0035] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0036] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0037] Please refer to the following: Figures 1 to 4 The hydraulic brake device provided by this utility model will now be described. The hydraulic brake device includes a hydraulic brake upper pump 10 and a brake caliper 20. The hydraulic brake upper pump 10 is connected to the brake caliper 20 via hydraulic lines. The hydraulic brake upper pump 10 includes an upper pump body 11, an oil reservoir 12, a first plug 13, and a second plug 14. An oil cylinder 111 is provided inside the upper pump body 11, and the oil cylinder 111 is connected to the brake caliper 20 via hydraulic lines. The oil reservoir 12 is connected to the upper pump body 11, and an oil storage chamber is provided inside the oil reservoir 12. The oil storage chamber is connected to the oil cylinder 111. The oil storage chamber 12 has an oil filling hole on its upper side and an opening at one end. The oil storage chamber is in the shape of a stepped hole, including a small chamber 121 and a large chamber 122. The diameter of the small chamber 121 is smaller than the diameter of the large chamber 122. The small chamber 121 is located on the side of the large chamber 122 away from the opening. The oil filling hole is opened on the side wall of the small chamber 121. The first plug 13 is suitable to be placed in the oil filling hole to block the oil filling hole. The second plug 14 is suitable to be placed in the opening to block the opening.

[0038] Specifically, the brake caliper 20 is an existing device, which can be the brake caliper 20 on mountain bikes, road bikes, electric bikes, or electric motorcycles; the first plug 13 and the second plug 14 are screw plugs or rubber plugs, and screw plugs are preferred.

[0039] It should be noted that the oil reservoir 12 on bicycles is usually small and cannot meet the oil storage requirements of the braking device on electric vehicles and electric motorcycles. Therefore, it cannot be installed on electric vehicles and electric motorcycles and has poor versatility. However, the oil reservoir 12 in the braking device provided in this embodiment has a stepped hole structure, which increases the oil storage capacity without changing the outline volume, so that it can meet the oil storage requirements of the braking device on electric vehicles and electric motorcycles, improves versatility, and can be installed horizontally or vertically.

[0040] The beneficial effects of the hydraulic brake device provided by this utility model are as follows: Compared with the prior art, the hydraulic brake device provided by this utility model has a stepped hole-shaped oil storage chamber in the oil storage chamber 12 of the hydraulic brake pump 10, and the oil filling hole is opened on the side wall corresponding to the small cavity 121, so as to ensure the sealing effect through the thicker wall thickness; at the same time, the oil storage capacity is increased by the large cavity 122 with a diameter greater than that of the small cavity 121. That is, the hydraulic brake device provided by this utility model increases the oil storage capacity in the same volume while ensuring the sealing of the oil storage chamber 12, effectively improving the service life of a single oil filling.

[0041] like Figure 2 and Figure 3 As shown, in a specific embodiment of the hydraulic brake device provided in this utility model, the oil reservoir is inclined.

[0042] Specifically, the oil storage chamber is connected to the oil cylinder 111 through the oil replenishment hole, and the oil replenishment hole is located at a lower position in the oil storage chamber. After the oil storage chamber is tilted, the oil in the oil storage chamber 12 can be replenished into the oil cylinder 111 in a timely manner to ensure sufficient braking force.

[0043] like Figure 3 and Figure 4 As shown, in a specific embodiment of the hydraulic brake device provided in this utility model, the hydraulic brake pump 10 further includes an oil bladder 15, which is disposed in the oil storage chamber.

[0044] Specifically, oil bladder 15 is a cylindrical air bladder.

[0045] like Figure 3 and Figure 4 As shown, in a specific embodiment of the hydraulic brake device provided in this utility model, the oil bladder 15 is cross-shaped, with a retainer 151 at one end and a side wall at the other end abutting against the side wall of the small cavity 121; a retaining ring 123 is provided on the side wall of the large cavity 122, and the retainer 151 of the oil bladder 15 is located between the retaining ring 123 and the opening, abutting against the retaining ring 123.

[0046] It should be noted that the oil bladder 15 is designed in a cross shape to ensure that the oil bladder 15 can be fixed in the oil storage cavity while reducing the volume of the oil bladder 15 and increasing the oil storage capacity.

[0047] like Figure 3 and Figure 4 As shown, in a specific embodiment of the hydraulic brake device provided in this utility model, the hydraulic brake upper pump 10 further includes a pressure pad 16, which is sandwiched between the card seat 151 and the second plug 14.

[0048] Specifically, pressure pad 16 is a rubber pad used to improve sealing.

[0049] like Figure 2 and Figure 4 As shown, in a specific embodiment of the hydraulic brake device provided in this utility model, the upper pump body 11 is also integrally provided with a clamp 112 and a support 113. The clamp 112 is located in the middle of the upper pump body 11, and the support 113 is located at the tail of the upper pump body 11.

[0050] It should be noted that the existing upper pump body 11 usually only has a clamp 112 at the rear to fix it to the frame. It only has one support position and the support is poor. When the brake is squeezed hard, the upper pump body 11 is prone to deformation or even breakage.

[0051] In this embodiment, the clamp 112 is set in the middle of the upper pump body 11, and the support 113 is set at the rear to abut against the frame, forming two support positions, which greatly improves the support and stability and makes it less prone to deformation.

[0052] like Figure 2 and Figure 4 As shown, in a specific embodiment of the hydraulic brake device provided in this utility model, the upper pump body 11 further includes a push piston 114, a brake lever handle 115, a universal joint 116, a push rod 117, and a return spring 118. The push piston 114 is slidably disposed in the oil cylinder 111; the brake lever handle 115 is rotatably connected to the upper pump body; the universal joint 116 is rotatably engaged with the brake lever; one end of the push rod 117 is connected to the push piston 114, and the other end is provided with a threaded adjustment section 1171, which passes through the universal joint 116 and is threadedly engaged with the universal joint 116. Figure 2 and Figure 4 As shown, in a specific embodiment of the hydraulic brake device provided in this utility model, the upper pump body 11 and the oil storage chamber 12 are integrally connected; the return spring 118 is provided in the oil cylinder 111 and is provided at one end of the push piston 114 facing away from the push rod 117. One end of the return spring 118 abuts against the push piston 114 and the other end abuts against the oil cylinder 111.

[0053] It should be noted that the threaded adjustment section 1171 of the push rod 117 passes through the universal joint 116 and is threadedly engaged with the universal joint 116. Therefore, the push rod 117 can be turned to finely adjust the distance of the brake lever handle 115, thereby adjusting the braking force.

[0054] In one specific embodiment of the hydraulic brake device provided in this utility model, the upper pump body 11 and the oil reservoir 12 are made of forged aluminum.

[0055] It should be noted that forged aluminum has better mechanical properties than cast aluminum, which can effectively improve the mechanical properties of the hydraulic brake upper pump 10.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic braking device, comprising a hydraulic brake upper pump and a brake caliper, wherein the hydraulic brake upper pump is connected to the brake caliper via a hydraulic line, characterized in that, The hydraulic brake upper pump includes: The upper pump body has an internal hydraulic cylinder, which is connected to the brake caliper via hydraulic lines; and An oil storage chamber is connected to the upper pump body. An oil storage cavity is opened in the oil storage chamber and is connected to the oil cylinder. An oil filling hole is opened on the upper side of the oil storage chamber and an opening is provided at one end. The oil storage cavity is in the shape of a stepped hole, including a small cavity and a large cavity. The diameter of the small cavity is smaller than the diameter of the large cavity. The small cavity is located on the side of the large cavity away from the opening. The oil filling hole is opened on the side wall of the small cavity. A first plug is adapted to be disposed within the filler hole to block the filler hole; and A second plug is adapted to be placed inside the opening to block the opening.

2. The hydraulic brake device as described in claim 1, characterized in that, The oil storage chamber is inclined.

3. The hydraulic brake device as described in claim 1, characterized in that, The hydraulic brake pump also includes an oil bladder, which is located inside the oil storage chamber.

4. The hydraulic brake device as described in claim 3, characterized in that, The oil bladder is cross-shaped, with a retainer at one end and a sidewall at the other end abutting against the sidewall of the small cavity; a retaining ring is provided on the sidewall of the large cavity, and the retainer of the oil bladder is located between the retaining ring and the opening, abutting against the retaining ring.

5. The hydraulic brake device as described in claim 4, characterized in that, The hydraulic brake pump also includes a pressure pad, which is sandwiched between the card seat and the second plug.

6. The hydraulic brake device as described in claim 1, characterized in that, The upper pump body is also integrally provided with a clamp and a support. The clamp is located in the middle of the upper pump body, and the support is located at the tail of the upper pump body.

7. The hydraulic brake device as described in claim 1, characterized in that, The upper pump body also includes: The oil piston is slidably disposed within the oil cylinder; The brake lever is rotatably connected to the upper pump body; The universal joint is rotated in conjunction with the brake lever. The push rod has one end connected to the oil piston and the other end equipped with a threaded adjustment section, which passes through the universal joint and is threadedly engaged with it; and A return spring is provided inside the oil cylinder and at the end of the push piston facing away from the push rod. One end of the return spring abuts against the push piston, and the other end abuts against the oil cylinder.

8. The hydraulic brake device as described in claim 1, characterized in that, The upper pump body and the oil storage chamber are integrally connected.

9. The hydraulic brake device as described in claim 7, characterized in that, The upper pump body and the oil storage chamber are made of forged aluminum.

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