Screw for feeding oil into oil pipe of brake caliper

Abstract

The utility model discloses a screw for feeding oil into an oil pipe of brake calipers, which is characterized in that a thread section comprises a first thread section and a second thread section which are alternately arranged up and down; the first thread section comprises first threads, and the thread pitch between the first threads is 1.0 mm; the second thread section comprises a second thread and a third thread, and the thread pitch between the second thread and the third thread is 0.25 mm. According to the utility model, two bolts with original metric systems of 1.0 and 1.25 can be replaced, and the bolt can be screwed into a screw hole corresponding to the original metric system 1.25 and a screw hole corresponding to the original metric system 1.0 so as to mount the oil pipe, so that only one bolt needs to be prepared when the oil pipe of the brake caliper is assembled, the assembly requirement can be met, and the cargo pressing cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a screw for oil inlet of a brake caliper oil pipe. Background Art

[0002] The brake caliper uses friction to slow down and stop the vehicle by tightly pressing the brake disc. Its main function is to slow down, stop or keep the moving wheel stopped. The oil pipe installed on the brake caliper through the brake caliper oil pipe screw is mainly used to safely and efficiently transport brake fluid from the master brake cylinder to the brake cylinder located in the movable suspension assembly to ensure the normal operation of the braking system. Currently, most of the oil pipe screws for the brake caliper used in vehicles (mainly motorcycles, electric vehicles, etc.) are metric 1.0 and metric 1.25. Therefore, when assembling the oil pipes of different brake calipers (for example, used on different vehicles), two types of spare bolts, metric 1.0 and metric 1.25, are usually required. This not only causes inconvenience, but also increases the cost of inventory. Utility Model Content

[0003] Therefore, based on the above background, the present invention provides a brake caliper oil pipe oil inlet screw, which can replace the two metric bolts of 1.0 and 1.25 respectively used for brake caliper oil pipe assembly. It is easy to use and can reduce inventory costs.

[0004] The technical solution provided by this utility model is:

[0005] A screw for oil inlet of a brake caliper oil pipe comprises a screw head and a screw rod, wherein the screw rod comprises a polished rod section and a threaded section, wherein the polished rod section is located between the screw head and the threaded section; the threaded section comprises a first thread section and a second thread section, wherein the first thread section and the second thread section are alternately arranged up and down;

[0006] The first thread segment includes first threads, and the pitch between the first threads is 1.0 mm;

[0007] The second thread segment includes a second thread and a third thread, and the pitch between the second thread and the third thread is 0.25 mm.

[0008] One usage method is that the number of the first thread segments is 3 and the number of the second thread segments is 2.

[0009] The above technical solution has the following beneficial effects:

[0010] The utility model can replace the two original metric bolts of 1.0 and 1.25 respectively. It can be screwed into the screw hole corresponding to the original metric 1.25, and can also be screwed into the screw hole corresponding to the original metric 1.0 to install the oil pipe. Therefore, when assembling the oil pipe of the brake caliper, only one type of bolt needs to be prepared, which can meet the assembly requirements and reduce the inventory cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 :It is the structure schematic diagram of the utility model Figure 1 .

[0013] Figure 2 :for Figure 1 An enlarged view of the structure of the circled part.

[0014] Figure 3 : It is the structural representation of the second screw thread section of the present utility model.

[0015] Figure 4 :It is the structure schematic diagram of the utility model Figure 2 .

[0016] Figure 5 : It is a cross-sectional structural schematic diagram of the present utility model.

[0017] Figure 6 : It is the reference diagram of the use state of the utility model. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0019] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] In the description of this utility model, "first feature" or "second feature" may include one or more of these features. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features being described. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of these features.

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Example 1: Reference Figure 1 and Figure 6 The brake caliper oil pipe oil inlet screw shown in the figure includes a screw head 1 and a screw rod 2. The screw 2 includes a polished rod section and a threaded section 3. The polished rod section is located between the screw head and the threaded section 2. The threaded section 2 includes a first thread section 31 and a second thread section 32. The first thread section 31 and the second thread section 32 are connected to each other (as shown in FIG. Figure 1 As shown, they are alternately arranged along the direction of extension of the screw); the first thread segment 31 includes a first thread 311, and the pitch between the first threads is 1.0 mm, that is, the first thread segment 31 corresponds to the pitch of the original metric 1.25 screw.

[0023] The second thread segment 32 includes a second thread 321 and a third thread 322. The pitch between the second and third threads 321, 322 (specifically, between the third thread 322 and between the second and third threads 321, 322) is 0.25 mm. This corresponds to the pitch of a 1.0 metric screw. There are three first thread segments 31 and two second thread segments 32. In a specific implementation, the pitch between the first and second threads 311, 321 is 0.25 mm.

[0024] One of the first thread segments is located at the bottom of the thread segment.

[0025] The first screw segment has three first threads, and the second screw segment has two second threads 321 and two third threads 322. The third thread 322 is located between the second threads 321. The major diameter of the second thread 321 is equal to or smaller than the major diameter of the third thread 322, and the minor diameter of the second thread 321 is the same as the minor diameter of the third thread 322. The major diameter of the first thread is the same as the major diameter of the third thread 322.

[0026] In one embodiment, the major diameters of the first and third screw threads are 9.85-13 mm, for example, the major diameter of the first screw thread is 12.5 mm, and the major diameters of the second screw thread are the same as the third screw thread (not shown); the minor diameter of the third screw thread is 9-9.1 mm, for example, the minor diameter of the third screw thread is 9.09 mm. Alternatively, the major diameter of the first screw thread is 9.87-9.88 mm, and the major diameter of the second screw thread is 9.13-9.14 mm.

[0027] The above dimensions are all measured data.

[0028] Specifically, the present invention can be made by reprocessing the original metric 1.25 screw. Specifically, a reverse thread tap is used to tap the threaded section of the original metric 1.25 screw to produce a thread with a corresponding metric 1.0, that is, a thread with a pitch of 0.25 mm.

[0029] The polished rod section is provided with a first oil passage hole 5 extending therethrough. An oil passage cavity 41 is provided in the middle of the screw rod. This oil passage cavity has a second oil passage hole 4 at the bottom of the screw rod 2, communicating with the first oil passage hole 5. This corresponds to the installed oil pipe to facilitate oil passage, and the details are omitted for clarity.

[0030] like Figure 6 The figure shows a reference diagram of the present invention in use. If the screw holes for the oil pipe mounting on the brake caliper remain unchanged, the bolts corresponding to the screw holes for the oil pipe mounting on the brake caliper are mostly metric 1.0 (0.25mm) and metric 1.25 (1.0mm). The screws of this embodiment can be screwed into the screw holes originally corresponding to metric 1.0 screws or metric 1.25 screws to assemble the oil pipe. This embodiment has been manufactured and tested, and it has been verified that a torque of 25 Nm or more is required to screw into the screw hole. After the screw is screwed into the screw hole, the tightening force between the screw and the screw hole can meet the requirements.

[0031] The utility model is not only applicable to the installation of brake caliper oil pipes for motorcycles or electric vehicles, but also applicable to the installation of brake caliper oil pipes for automobiles.

[0032] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A screw for oil inlet of a brake caliper oil pipe, comprising a screw head and a screw rod, wherein the screw rod comprises a polished rod section and a threaded section, characterized in that: The polished rod section is located between the screw head and the threaded section; The thread segment includes a first thread segment and a second thread segment, and the first thread segment and the second thread segment are alternately arranged up and down; The first thread segment includes first threads, and the pitch between the first threads is 1.0 mm; The second thread segment includes a second thread and a third thread, and the pitch between the second thread and the third thread is 0.25 mm.

2. The brake caliper oil pipe oil inlet screw according to claim 1, characterized in that: The number of the first thread segments is 3, and the number of the second thread segments is 2.

3. The brake caliper oil pipe oil inlet screw according to claim 2, characterized in that: One of the first thread segments is located at the bottom of the thread segment.

4. The brake caliper oil pipe oil inlet screw according to claim 1, characterized in that: The number of first threads of the first thread segment is 3, and the number of second threads and third threads of the second thread segment are 2 respectively.

5. The brake caliper oil pipe oil inlet screw according to claim 4, characterized in that: The third thread is located between the second thread, the major diameter of the second thread is smaller than or equal to the major diameter of the third thread, and the minor diameter of the second thread is consistent with the minor diameter of the third thread.

6. The oil inlet screw for the brake caliper oil pipe according to claim 1, characterized in that: The major diameter of the first screw thread is consistent with the major diameter of the third screw thread.

7. The brake caliper oil pipe oil inlet screw according to claim 6, characterized in that: The major diameters of the first thread and the second thread are 9.85-13 mm.

8. The brake caliper oil pipe oil inlet screw according to claim 1, characterized in that: The polished rod section is provided with a first oil-passing through hole.

9. The brake caliper oil pipe oil inlet screw according to claim 1, characterized in that: An oil passage cavity is provided in the middle of the screw rod. The oil passage cavity has a second oil passage hole at the bottom of the screw rod. The oil passage cavity is communicated with the first oil passage hole.

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