Oil storage cavity structure and wire pulling oil brake device

Abstract

The utility model discloses an oil storage cavity structure and a wire pulling oil brake device, the oil storage cavity structure comprises a piston cylinder, an oil storage cavity, a first piston cavity, a second piston cavity and an oil injection hole are arranged in the piston cylinder, the oil storage cavity is communicated with the first piston cavity through a first through hole, and the second piston cavity is communicated with the second piston cavity through a second through hole; the oil storage cavity is communicated with the second piston cavity through a second through hole, and the oil injection hole is communicated with the oil storage cavity through an oil injection branch hole. The first piston cavity and the second piston cavity are arranged in the piston cylinder, the manufacturing cost for independently arranging the first piston cavity and the second piston cavity is saved, the first piston cavity and the second piston cavity are supplemented with oil through the same oil storage cavity, and the manufacturing cost is further saved; and meanwhile, due to the arrangement of one piston cylinder, the riding wind resistance is greatly reduced, and the riding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to an oil storage cavity structure and a wire-pull oil brake device. Background Art

[0002] In the existing bicycle hydraulic brake system, the front and rear wheel braking is usually achieved by two independent brake devices, that is, one brake device controls the front wheel braking, and the other brake device is responsible for the rear wheel braking. Although this design method ensures the independence and flexibility of braking to a certain extent, it also brings corresponding problems.

[0003] Since two independent braking devices are required, two piston cylinders need to be set up, which not only increases the material cost, but also increases the complexity of production and assembly, thereby increasing the overall cost; at the same time, the setting of two piston cylinders greatly increases the wind resistance during bicycle riding, thereby reducing riding efficiency. Utility Model Content

[0004] The utility model aims to provide an oil storage cavity structure and a wire-pull oil brake device, aiming to solve the problem of relatively high braking cost of the existing oil brake system.

[0005] An embodiment of the utility model provides an oil storage chamber structure, including: a piston cylinder, in which an oil storage chamber, a first piston chamber, a second piston chamber and an oil injection hole are arranged, the oil storage chamber is connected to the first piston chamber through a first through hole, the oil storage chamber is connected to the second piston chamber through a second through hole, and the oil injection hole is connected to the oil storage chamber through an oil injection branch hole.

[0006] Furthermore, a partition portion is provided in the oil storage chamber to divide the oil storage chamber into a first oil storage chamber and a second oil storage chamber, the first oil storage chamber is connected to the first piston chamber through the first through hole, and the second oil storage chamber is connected to the second piston chamber through the second through hole.

[0007] Furthermore, there is a gap between the partition portion and the inner wall of the oil storage cavity, and the first oil storage cavity and the second oil storage cavity are connected.

[0008] Furthermore, two of the oil injection holes and the oil injection branch holes are provided, one of the oil injection holes is connected to the first oil storage chamber through one of the oil injection branch holes, and the other oil injection hole is connected to the second oil storage chamber through the other oil injection branch hole.

[0009] Furthermore, the oil injection branch hole and the oil injection hole are both provided with one, one end of the oil injection branch hole is connected with the oil injection hole, and the other end of the oil injection branch hole is connected with the first oil storage chamber, or the other end of the oil injection branch hole is connected with the second oil storage chamber;

[0010] Alternatively, two oil injection branch holes are provided, one end of each of the two oil injection branch holes is connected to the oil injection hole, the other end of one of the oil injection branch holes is connected to the first oil storage chamber, and the other end of the other oil injection branch hole is connected to the second oil storage chamber.

[0011] Furthermore, there is no gap between the partition portion and the inner wall of the oil storage cavity, and the first oil storage cavity and the second oil storage cavity are not connected.

[0012] Furthermore, two oil injection holes are provided, one of which is communicated with the first oil storage chamber, and the other oil injection hole is communicated with the second oil storage chamber;

[0013] Alternatively, two oil injection branch holes are provided, one end of each of the two oil injection branch holes is connected to the oil injection hole, the other end of one of the oil injection branch holes is connected to the first oil storage chamber, and the other end of the other oil injection branch hole is connected to the second oil storage chamber.

[0014] Furthermore, the piston cylinder is provided with two oil storage and exhaust holes, one end of which is connected to the atmosphere, and the other end is connected to the first oil storage chamber;

[0015] One end of the other oil storage exhaust hole is communicated with the atmosphere, and the other end is communicated with the second oil storage chamber.

[0016] Furthermore, a first piston exhaust hole and a second piston exhaust hole are provided in the piston cylinder, and both ends of the first piston exhaust hole are respectively connected to the first piston chamber and the oil storage chamber, and both ends of the second piston exhaust hole are respectively connected to the second piston chamber and the oil storage chamber.

[0017] The embodiment of the utility model further provides a wire-pull oil brake device, comprising: the above-mentioned oil storage chamber structure.

[0018] The utility model discloses an oil storage chamber structure and a line-pull oil brake device, the oil storage chamber structure comprises: a piston cylinder, the piston cylinder is provided with an oil storage chamber, a first piston chamber, a second piston chamber and an oil filling hole, the oil storage chamber is connected with the first piston chamber through a first through hole, the oil storage chamber is connected with the second piston chamber through a second through hole, and the oil filling hole is connected with the oil storage chamber through an oil filling branch hole. The utility model saves the manufacturing cost of separately setting the first piston chamber and the second piston chamber by setting the first piston chamber and the second piston chamber in the piston cylinder, and the first piston chamber and the second piston chamber are replenished with oil by the same oil storage chamber, further saving the manufacturing cost; at the same time, the setting of a piston cylinder greatly reduces the wind resistance of riding and improves the efficiency of riding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of a wire-pull oil brake device;

[0021] Figure 2 It is a cross-sectional schematic diagram of a wire-pull oil brake device;

[0022] Figure 3 It is a schematic diagram of the structure of the piston cylinder (without the partition part);

[0023] Figure 4 It is a schematic diagram of the structure of the piston cylinder (with partitions);

[0024] Description of the markings in the figure:

[0025] 1. Piston cylinder; 2. Oil storage chamber; 3. First piston chamber; 4. Second piston chamber; 5. Oil filling hole; 6. First through hole; 7. Second through hole; 8. Oil filling branch hole; 9. Partitioning part; 10. First oil storage chamber; 11. Second oil storage chamber; 12. First piston exhaust hole; 13. Second piston exhaust hole. DETAILED DESCRIPTION

[0026] 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 part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0027] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0028] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0029] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0030] See also Figure 1-3 The utility model provides an oil storage chamber structure, including: a piston cylinder 1, in which an oil storage chamber 2, a first piston chamber 3, a second piston chamber 4 and an oil injection hole 5 are arranged, the oil storage chamber 2 is connected with the first piston chamber 3 through a first through hole 6, the oil storage chamber 2 is connected with the second piston chamber 4 through a second through hole 7, and the oil injection hole 5 is connected with the oil storage chamber 2 through an oil injection branch hole 8.

[0031] The utility model saves the manufacturing cost of separately setting up the first piston chamber 3 and the second piston chamber 4 by arranging the first piston chamber 3 and the second piston chamber 4 in the piston cylinder 1, and the first piston chamber 3 and the second piston chamber 4 are replenished with oil by the same oil storage chamber 2, which further saves the manufacturing cost; at the same time, the setting of a piston cylinder greatly reduces the wind resistance of riding and improves the efficiency of riding.

[0032] In this embodiment, please refer to Figure 4 A partition portion 9 is provided in the oil storage chamber 2 to divide the oil storage chamber 2 into a first oil storage chamber 10 and a second oil storage chamber 11. The first oil storage chamber 10 is connected to the first piston chamber 3 through the first through hole 6, and the second oil storage chamber 11 is connected to the second piston chamber 4 through the second through hole 7.

[0033] Since the first oil storage chamber 10 is directly connected to the first piston chamber 3, and the second oil storage chamber 11 is directly connected to the second piston chamber 4, this direct connection design reduces the energy loss of the hydraulic oil during the flow process. The flow path of the hydraulic oil is shorter and more direct, thereby improving the energy utilization rate and making the piston cylinder 1 more efficient.

[0034] In some embodiments, there is a gap between the partition portion 9 and the inner wall of the oil storage chamber 2, and the first oil storage chamber 10 and the second oil storage chamber 11 are connected. The first oil storage chamber 10 and the second oil storage chamber 11 are connected so that the user only needs to refill oil in one oil storage chamber to refill oil in all the oil storage chambers, which makes refilling more convenient and quick.

[0035] Among them, there is a gap between the partition part 9 and the inner wall of the oil storage chamber 2, which includes one or more of the following situations: there is a gap between the partition part 9 and the bottom inner wall of the oil storage chamber 2; or, there is a gap between the partition part 9 and the top inner wall of the oil storage chamber 2; or, there is a gap between the partition part 9 and the side inner wall of the oil storage chamber 2.

[0036] Preferably, there is a gap between the partition portion 9 and the top inner wall of the oil storage chamber 2, so that when the partition portion 9 reaches a certain height, even if one of the first oil storage chamber 10 and the second oil storage chamber 11 leaks oil, the remaining oil storage chamber can still store a certain amount of hydraulic oil to ensure normal operation, thereby improving the stability and reliability of the braking system.

[0037] Furthermore, two oil filling holes 5 and two oil filling branch holes 8 are provided, one of the oil filling holes 5 is connected to the first oil storage chamber 10 through one of the oil filling branch holes 8, and the other oil filling hole 5 is connected to the second oil storage chamber 11 through another oil filling branch hole 8.

[0038] When oil is injected into one of the oil injection holes 5, the gas in the oil storage chamber will be discharged from the other oil injection hole 5, that is, the other oil injection hole 5 is equivalent to an exhaust hole, so as to ensure the discharge of gas during the oil injection process and improve the stability and reliability of the brake system.

[0039] Further, one oil injection branch hole 8 and one oil injection hole 5 are both provided, one end of the oil injection branch hole 8 is connected to the oil injection hole 5, and the other end of the oil injection branch hole 8 is connected to the first oil storage chamber 10, or the other end of the oil injection branch hole 8 is connected to the second oil storage chamber 11;

[0040] Alternatively, two oil injection branch holes 8 are provided, one end of the two oil injection branch holes 8 are connected to the oil injection hole 5, the other end of one oil injection branch hole 8 is connected to the first oil storage chamber 10, and the other end of the other oil injection branch hole 8 is connected to the second oil storage chamber 11.

[0041] When both the oil filling branch hole 8 and the oil filling hole 5 are provided with one, only one of the oil storage chambers can be filled with oil first. After the oil storage chamber is filled with oil, the hydraulic oil will overflow the partition part 9 and start to fill the other oil storage chamber; and when two oil filling branch holes 8 are provided, the hydraulic oil can be injected into the first oil storage chamber 10 and the second oil storage chamber 11 at the same time.

[0042] In some embodiments, there is no gap between the partition 9 and the inner wall of the oil storage chamber 2, and the first oil storage chamber 10 and the second oil storage chamber 11 are not connected. Since the first oil storage chamber 10 and the second oil storage chamber 11 are independent of each other, when one oil storage chamber or the piston chamber connected thereto leaks oil, this design can effectively prevent the hydraulic oil from leaking from one oil storage chamber to another. This means that even if one part fails, it will not affect the normal operation of the other oil storage chamber and the piston chamber. This fault isolation mechanism greatly improves the stability and reliability of the brake system.

[0043] Furthermore, two oil injection holes 5 are provided, one of which is connected to the first oil storage chamber 10, and the other oil injection hole 5 is connected to the second oil storage chamber 11;

[0044] Alternatively, two oil injection branch holes 8 are provided, one end of the two oil injection branch holes 8 are connected to the oil injection hole 5, the other end of one oil injection branch hole 8 is connected to the first oil storage chamber 10, and the other end of the other oil injection branch hole 8 is connected to the second oil storage chamber 11.

[0045] Among them, the setting of the two oil filling holes 5 can ensure that when one of the oil storage chambers and the piston chamber connected thereto leaks, the other oil storage chamber can still be replenished with oil; and the setting of the two oil filling branch holes 8 enables the user to replenish the first oil storage chamber 10 and the second oil storage chamber 11 with only one oil filling hole 5, which has high oil replenishment efficiency and better user experience.

[0046] Furthermore, two oil storage and exhaust holes are provided on the piston cylinder 1, one end of which is connected to the atmosphere, and the other end is connected to the first oil storage chamber 10;

[0047] One end of the other oil storage exhaust hole is communicated with the atmosphere, and the other end is communicated with the second oil storage chamber 11 .

[0048] When the piston cylinder 1 is not provided with an oil storage and exhaust hole, the connecting through hole not only plays the role of injecting oil into the first piston chamber 3 and the second piston chamber 4, but also plays the role of exhausting during the oil injection process. The oil injection and exhausting are both performed through one through hole. Therefore, during the oil injection process, the exhausted gas will hinder the injection of hydraulic oil, thereby greatly reducing the efficiency of oil injection. The two independent oil storage and exhaust holes are provided so that the oil injection and exhausting operations are separated, which improves the efficiency of oil injection.

[0049] For further information, see Figure 3 and Figure 4 A first piston exhaust hole 12 and a second piston exhaust hole 13 are provided in the piston cylinder 1. The two ends of the first piston exhaust hole 12 are respectively connected to the first piston chamber 3 and the oil storage chamber 2, and the two ends of the second piston exhaust hole 13 are respectively connected to the second piston chamber 4 and the oil storage chamber 2.

[0050] The provision of the first piston exhaust hole 12 and the second piston exhaust hole 13 can ensure that when the oil storage chamber 2 replenishes oil to the first piston chamber 3 and the second piston chamber 4, the gas in the first piston chamber 3 and the second piston chamber 4 can be discharged smoothly, thereby avoiding the problem of gas accumulation and further ensuring the stability and reliability of the brake system.

[0051] It should be noted that both the first through hole 6 and the first piston exhaust hole 12 can have the functions of replenishing oil and exhausting gas independently, for example, the hydraulic oil is injected into the first piston chamber 3 from the first through hole 6, and the gas in the first piston chamber 3 is discharged from the first through hole 6; or, one of the first through hole 6 and the first piston exhaust hole 12 can be used for replenishing oil, and the other for exhausting gas, for example, the hydraulic oil is injected into the first piston chamber 3 from the first piston exhaust hole 12, and the gas in the first piston chamber 3 is discharged from the first through hole 6. Similarly, the second through hole 7 and the second piston exhaust hole 13 can also have the functions of replenishing oil and exhausting gas independently, or one of them can be used for replenishing oil, and the other for exhausting gas, which will not be described in detail.

[0052] This embodiment also provides a wire-pull oil brake device, including: the oil storage chamber structure of the above embodiment.

[0053] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0054] It should also be noted that, in this specification, 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", "comprises" or any other variations thereof are intended to cover non-exclusive.

[0055] Inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. An oil storage cavity structure, characterized in that: include: A piston cylinder, wherein an oil storage chamber, a first piston chamber, a second piston chamber and an oil injection hole are arranged in the piston cylinder; the oil storage chamber is connected to the first piston chamber through a first through hole, the oil storage chamber is connected to the second piston chamber through a second through hole, and the oil injection hole is connected to the oil storage chamber through an oil injection branch hole.

2. The oil storage cavity structure according to claim 1, characterized in that: A partition portion is provided in the oil storage chamber to divide the oil storage chamber into a first oil storage chamber and a second oil storage chamber. The first oil storage chamber is connected to the first piston chamber through the first through hole, and the second oil storage chamber is connected to the second piston chamber through the second through hole.

3. The oil storage cavity structure according to claim 2, characterized in that: A gap is provided between the partition portion and the inner wall of the oil storage cavity, and the first oil storage cavity is communicated with the second oil storage cavity.

4. The oil storage cavity structure according to claim 3, characterized in that: Two of the oil injection holes and the oil injection branch holes are provided, one of the oil injection holes is connected to the first oil storage chamber through one of the oil injection branch holes, and the other oil injection hole is connected to the second oil storage chamber through the other oil injection branch hole.

5. The oil storage cavity structure according to claim 3, characterized in that: The oil injection branch hole and the oil injection hole are both provided with one, one end of the oil injection branch hole is connected with the oil injection hole, and the other end of the oil injection branch hole is connected with the first oil storage chamber, or the other end of the oil injection branch hole is connected with the second oil storage chamber; Alternatively, two oil injection branch holes are provided, one end of each of the two oil injection branch holes is connected to the oil injection hole, the other end of one of the oil injection branch holes is connected to the first oil storage chamber, and the other end of the other oil injection branch hole is connected to the second oil storage chamber.

6. The oil storage cavity structure according to claim 2, characterized in that: There is no gap between the partition portion and the inner wall of the oil storage chamber, and the first oil storage chamber and the second oil storage chamber are not connected.

7. The oil storage cavity structure according to claim 6, characterized in that: There are two oil injection holes, one of which is connected to the first oil storage chamber, and the other is connected to the second oil storage chamber; Alternatively, two oil injection branch holes are provided, one end of each of the two oil injection branch holes is connected to the oil injection hole, the other end of one of the oil injection branch holes is connected to the first oil storage chamber, and the other end of the other oil injection branch hole is connected to the second oil storage chamber.

8. The oil storage cavity structure according to claim 6, characterized in that: The piston cylinder is provided with two oil storage and exhaust holes, one end of which is connected to the atmosphere, and the other end is connected to the first oil storage chamber; One end of the other oil storage exhaust hole is communicated with the atmosphere, and the other end is communicated with the second oil storage chamber.

9. The oil storage cavity structure according to claim 1, characterized in that: A first piston exhaust hole and a second piston exhaust hole are provided in the piston cylinder. Two ends of the first piston exhaust hole are respectively connected to the first piston chamber and the oil storage chamber. Two ends of the second piston exhaust hole are respectively connected to the second piston chamber and the oil storage chamber.

10. A wire-pull oil brake device, characterized in that: include: An oil storage chamber structure as claimed in any one of claims 1 to 9.

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