TW202122219A - Caliper piston compressor - Google Patents

Abstract

A caliper piston compressor, configured to push two pistons of a caliper, includes a holding pillar, a movable pillar, a first push component, a second push component and a driving assembly. The holding pillar has an accommodation space. The movable pillar is movably located in the accommodation space of the holding pillar. The first push component is fixed on the holding pillar and is located outside the accommodation space of the holding pillar. The second push component is fixed on the movable component and is located outside the accommodation space of the holding pillar. The first push component and the second push component are configured to push the two pistons of the caliper. The driving assembly is disposed on the holding pillar and is connected to the movable component. The driving assembly is configured to drive the movable pillar to slide with respect to the holding pillar so as to move the first push component and the second push component to be close to or away from each other.

Description

Caliper piston thruster

The present invention relates to a pushback device, especially a caliper piston pushback device.

In recent years, the bicycle market has been booming. Whether it is a high-end racing bicycle or a popular bicycle used as a means of transportation and leisure entertainment, it has been favored by consumers, prompting manufacturers to pay more attention to the needs of users for bicycle functions. Car body materials, equipment and functions are continuously improved and refined.

Generally speaking, when replacing the brake pad of a bicycle, the caliper piston pliers are usually used to push the piston of the bicycle caliper back, so that the pad can be easily removed from the caliper. The traditional caliper piston pliers has two push pieces, a stud and a rotating handle. One push piece is connected to the rotating handle through the stud, and the other push piece is fixed on the grip rod sleeved on the stud. . When the user operates the rotating handle, the rotating handle moves linearly with respect to the grip rod and approaches the pusher fixed to the grip bar to drive the other pusher away from the pusher fixed to the grip bar, and the inside of the caliper The piston pushes back. However, when one of the hands of the user is operating the rotating handle, the other hand must be held on the grip. Therefore, in the process of linear movement of the rotary handle toward the pusher fixed to the grip bar, the hand holding the grip bar easily interferes with the hand operating the rotary handle, which makes the action of operating the rotary handle not smooth.

The present invention is to provide a caliper piston pushback, so as to solve the problem that the hand holding the grip rod easily interferes with the hand operating the rotary handle when operating the rotary handle of the caliper piston pliers in the prior art.

A caliper piston pushback disclosed in an embodiment of the present invention is used to push two pistons of a caliper, and includes a grip rod, a movable rod, a first pusher, a second pusher, and a drive Components. The grip has an accommodating space. The movable rod is slidably located in the accommodating space. The first pushing member is fixed to the grip rod and located outside the accommodating space. The second pushing member is fixed to the movable rod and located outside the accommodating space. The first pushing member and the second pushing member are respectively used for pushing the two pistons of the caliper. The driving component is arranged on the grip rod and connected to the movable rod, and the grip rod cannot slide linearly relative to the driving component. The driving assembly is used for driving the movable rod to slide relative to the grip rod, so that the first pushing member and the second pushing member are close to or away from each other.

Another embodiment of the present invention discloses a caliper piston pushback device for pushing two pistons of a caliper, including a grip rod, a movable rod, a first pusher, a second pusher, and a Drive components. The movable rod is slidably arranged on the grip rod. The first pushing member is fixed to the grip rod. The second pushing member is fixed to the movable rod. The first pushing member and the second pushing member are respectively used for pushing the two pistons of the caliper. The driving component includes a handle and a transmission part. The handle is pivoted on one end of the transmission member, and the other end of the transmission member is connected with the movable rod. The handle is used for driving the movable rod to slide relative to the grip rod through the transmission member, so that the first pushing member and the second pushing member are close to or far away from each other. The handle can pivot relative to the grip rod between a storage position and a use position different from the storage position, and the pivot axis of the handle is perpendicular to the sliding direction of the movable rod relative to the grip rod.

A caliper piston pusher disclosed in another embodiment of the present invention is used to push two pistons of a caliper, and includes a grip rod, a movable rod, a first pusher, at least one first assembly, and The second pushing member, a second assembling member and a driving assembly. The movable rod is slidably arranged on the grip rod. The first pushing member is fixed to the grip rod through the first assembling member. The second pushing member is fixed to the movable rod through the second assembling member. The first pushing member and the second pushing member are respectively used for pushing the two pistons of the caliper. The driving assembly is connected to the movable rod, and the driving assembly is used for driving the movable rod to slide relative to the grip rod, so that the first pushing member and the second pushing member are close to or away from each other. The projection of the first assembling part in the sliding direction of the movable rod to the second pushing part is not overlapped with the second assembling part.

Another embodiment of the present invention discloses a caliper piston pushback device, which is used to push two pistons of a caliper, and includes a grip rod, a movable rod, a first pusher, a second pusher, A limit piece and a drive assembly. The movable rod is slidably arranged on the grip rod. The movable rod has a limiting groove, and the limiting groove extends along the axial direction of the movable rod. The first pushing member is fixed to the grip rod. The second pushing member is fixed to the movable rod. The first pushing member and the second pushing member are respectively used for pushing the two pistons of the caliper. The limiting member is fixed to the grip rod, and part of the limiting member is located in the limiting groove. The driving assembly is connected to the movable rod, and is used for driving the movable rod to slide relative to the grip rod, so that the first pushing member and the second pushing member are close to or far away from each other.

According to the caliper piston pushback of the above embodiment, since the movable rod is slidably located in the accommodating space of the grip rod, the drive assembly is arranged on the grip rod and connected to the movable rod, and the grip rod cannot slide linearly relative to the drive assembly, so when used When a user operates the drive assembly, the movable rod located in the accommodating space of the grip rod slides relative to the grip rod, and the drive assembly does not linearly slide relative to the grip rod. Therefore, the user's hand holding the grip bar and the hand operating the driving assembly can be prevented from interfering, so as to maintain the smoothness of the operation of the driving assembly.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principle of the present invention, and to provide a further explanation of the scope of the patent application of the present invention.

Please refer to Figure 1 to Figure 3 together. Fig. 1 is a three-dimensional schematic diagram of a caliper piston pushback according to a first embodiment of the present invention. Fig. 2 is an exploded schematic diagram of Fig. 1. Fig. 3 is a schematic plan view of the bottom of the caliper piston pushback of Fig. 1.

In this embodiment, the caliper piston pushback 1 includes a grip rod 10, a first pushing member 20, a movable rod 30, a second pushing member 40 and a driving assembly 50. In addition, in this embodiment or other embodiments, the caliper piston pushback 1 further includes a plurality of first assembling parts 65, a second assembling part 70, a limiting part 75, a stopping part 80, and a positioning part. 85.

The grip 10 includes a barrel portion 11 and a cover portion 12. The barrel 11 has an accommodating space 111 and two openings 112 and 113. The two openings 112 and 113 are respectively connected to two opposite sides of the accommodating space 111. The cover 12 is installed in the opening 112 so that the opening 112 of the cylinder 11 is shielded by the cover 12. The first assembly 65 is, for example, a screw. The first pushing member 20 is fixed at the opening 113 of the barrel 11 of the grip rod 10 through these first assembling members 65, and the first pushing member 20 has a through slot 21 communicating with the accommodating space 111 of the barrel 11.

The movable rod 30 passes through the through slot 21 of the first pushing member 20 and the opening 113 of the barrel 11 of the grip rod 10, and one end of the movable rod 30 is located in the accommodating space 111 of the barrel 11, and the other of the movable rod 30 One end is located outside the accommodating space 111 of the barrel 11. The movable rod 30 can slide relative to the grip rod 10 along the axial direction of the barrel portion 11 of the grip rod 10 (direction D1 as shown in FIG. 4 ). The second assembly 70 is, for example, a screw. The second pushing member 40 is fixed to an end of the movable rod 30 located outside the accommodating space 111 through the second assembling member 70, and is located at one side of the first pushing member 20. As shown in FIG. 3, the projections of these first assembling members 65 on the second pushing member 40 in the sliding direction D1 of the movable rod 30 (as shown in FIG. 4) do not overlap with the second assembling member 70. The first pushing member 20 and the second pushing member 40 are respectively used to push the two opposite pistons 3 of the bicycle caliper 2 (please refer to FIG. 7 first).

Then, please refer to Figure 2, Figure 4 and Figure 5 together. Fig. 4 is a schematic cross-sectional view taken along line 4-4 of Fig. 3; Fig. 5 is a schematic cross-sectional view taken along line 5-5 of Fig. 3;

In this embodiment, the annular side wall of the cylindrical portion 11 of the grip rod 10 is provided with a through hole 114, and the movable rod 30 has a limiting groove 31 extending along the axial direction thereof. The limiting member 75 passes through the through hole 114 of the barrel 11 of the grip rod 10, and a part of the limiting member 75 is located in the limiting groove 31 of the movable rod 30. The combination of the limiting member 75 and the limiting groove 31 of the movable rod 30 can limit the sliding stroke of the movable rod 30 relative to the grip rod 10 to prevent the movable rod 30 from detaching from the grip rod 10. In addition, the combination of the limiting member 75 and the limiting groove 31 of the movable rod 30 can also prevent the movable rod 30 from rotating relative to the grip rod 10.

The driving assembly 50 is located on a side of the first pushing member 20 away from the second pushing member 40. In other words, the first pushing member 20 is located between the second pushing member 40 and the driving assembly 50. In this embodiment, the movable rod 30 further has a screw hole 32, and the screw hole 32 is located at an end of the movable rod 30 away from the second pushing member 40. The driving assembly 50 includes a transmission member 51, a fixing member 52 and a handle 53. The transmission member 51 includes a screw portion 511 and a driving portion 512. The screw portion 511 penetrates the cover portion 12 of the grip bar 10, one end of the screw portion 511 is located in the accommodating space 111 and combined with the screw hole 32 of the movable rod 30, and the other end of the screw portion 511 is located outside the accommodating space 111. The driving portion 512 of the transmission member 51 has a first slot 5121 and a second slot 5122 that are connected, and the first slot 5121 and the second slot 5122 extend in two different directions, respectively. One end of the screw portion 511 located outside the accommodating space 111 is inserted into the first slot 5121 of the driving portion 512. The screw portion 511 has a fixing hole 5111, and the fixing member 52 is inserted into the second slot 5122 and the fixing hole 5111 of the driving portion 512, so that one end of the screw portion 511 is fixed to the driving portion 512. The stopper 80 is located in the accommodating space 111 and penetrates the screw portion 511, and the stopper 80 abuts against the cover 12 of the grip rod 10 to prevent the screw portion 511 from being separated from the screw hole 32 of the movable rod 30.

In this embodiment, the driving part 512 also has a third slot 5123 connected to the first slot 5121, and the third slot 5123 and the first slot 5121 extend in different directions, respectively. The handle 53 includes a pivot post 531 and an operating rod 532 connected to each other. The pivoting post 531 of the handle 53 is rotatably inserted into the third slot 5123 of the driving part 512, so that the handle 53 is pivoted to the driving part 512. The pivot post 531 of the handle 53 has an assembly groove 5311, and the assembly groove 5311 of the pivot post 531 of the handle 53 is assembled with the screw portion 511. From FIG. 4, the pivot axis P1 of the handle 53 is perpendicular to the sliding direction D1 of the movable rod 30 relative to the grip rod 10.

In addition, the pivoting post 531 of the handle 53 also has two abutting surfaces 5312, 5313 forming the assembly groove 5311, and the two abutting surfaces 5312, 5313 face two different directions, respectively. The operating rod 532 of the handle 53 has two positioning holes 5321, 5322 on the side facing the driving portion 512. The positioning member 85 is, for example, a spring plunger, and the positioning member 85 is disposed on the driving portion 512 and protrudes from the outer surface of the driving portion 512. In addition, the barrel portion 11 of the grip 10 and the driving portion 512 of the transmission member 51 have, for example, grooves 115 and 5124 extending along the axial direction of the barrel portion 11, and the two grooves 115 and 5124 jointly form a receiving groove 90.

In this embodiment, the handle 53 can pivot relative to the grip 10 between a storage position and a use position. When the caliper piston retractor 1 is not in use, the handle 53 of the caliper piston retractor 1 is usually located in the storage position. At this time, as shown in FIGS. 4 and 5, the operating rod 532 of the handle 53 is accommodated in the receiving groove 90, and the long axis P2 of the operating rod 532 is parallel to the axial direction of the cylindrical portion 11 of the grip rod 10 (such as the direction D1 ). Moreover, as shown in FIG. 5, the screw portion 511 of the transmission member 51 abuts against the abutting surface 5312 of the pivoting post 531 of the handle 53, and the positioning member 85 is clamped into the positioning hole 5321 of the operating rod 532 of the handle 53.

Next, please refer to FIG. 6, which is a schematic cross-sectional view of the handle of FIG. 5 in the use position.

Generally speaking, the two pistons 3 of the caliper are respectively pressed against the two receptacles 4 (please refer to FIG. 7 first). When the caliper piston pusher 1 is to be used to push back the two pistons 3 of the caliper 2, the handle 53 is first pivoted from the storage position to the use position. At this time, the screw portion 511 of the transmission member 51 abuts against the abutment surface 5313 of the pivoting post 531 of the handle 53, the positioning member 85 is clamped into the positioning hole 5322 of the operating rod 532 of the handle 53, and the part of the operating rod 532 of the handle 53 It will be outside the receiving slot 90 (as shown in FIG. 4), and the long axis P2 of the operating rod 532 is perpendicular to the axial direction of the barrel portion 11 of the grip rod 10 (such as the direction D1). It can be seen that the pivotable angle of the handle 53 between the storage position and the use position is 90 degrees.

Next, please refer to FIGS. 6 and 7 together. FIG. 7 is a schematic cross-sectional view of the first pushing member and the second pushing member of FIG. 6 inserted between the pad and the piston of the caliper.

By turning the operating rod 532 of the handle 53 with one hand of the user, and holding the barrel 11 of the grip 10 with the other hand, the driving part 512 and the screw part 511 of the transmission member 51 are rotated together, so that the movable rod 30 is relatively gripped The rod 10 slides in a direction away from the cover 12 of the grip rod 10 to increase the distance between the first pushing member 20 and the second pushing member 40. After the distance between the first pushing member 20 and the second pushing member 40 is adjusted to the distance corresponding to the two pistons 3 of the caliper 2, the first pushing member 20 and the second pushing member 40 are inserted into the two pistons 3 and two, respectively. Come to make between piece 4.

Next, please refer to FIGS. 6 and 8. FIG. 8 is a schematic cross-sectional view of the first pushing member and the second pushing member of FIG. 7 pushing the piston back. Then turn the operating rod 532 of the handle 53, and the movable rod 30 is driven by the driving part 512 and the screw part 511 to slide in the direction away from the cover part 12 of the grip rod 10, so that the first pusher 20 and the second pusher The distance between 40 is further increased, so that the two pistons 3 of the caliper 2 are pushed by the first pushing member 20 and the second pushing member 40 to move in two opposite directions. In this way, the two pieces 4 are not abutted by the two pistons 3 of the caliper 2 respectively, so they can be detached from the caliper 2 more easily.

In this embodiment, since the movable rod 30 is slidably located in the accommodating space 111 of the grip rod 10, and the movable rod 30 is slid by rotating the handle 53, the driving portion 512 of the transmission member 51, and the screw portion 511, so When the user operates the handle 53, the movable rod 30 located in the accommodating space 111 of the grip bar 10 slides relative to the grip bar 10, but the handle 53, the driving part 512 and the stud part 511 of the transmission member 51 will not be relatively gripped The rod 10 slides linearly. Therefore, the user's hand holding the grip 10 and the hand of the operating handle 53 can be prevented from interfering, and the smoothness of the operating handle 53 can be maintained.

When the handle 53 is in the storage position, the long axis P2 of the operating rod 532 is parallel to the axial direction (such as the direction D1) of the barrel 11 of the grip rod 10, and the operating rod 532 is located in the receiving groove 90, which can lift the caliper piston back The appearance of the pusher 1 is beautiful.

In this embodiment, the caliper piston pushback 1 is provided with a receiving groove 90, which is not intended to limit the present invention. In its embodiment, the caliper piston pushback may not have a receiving groove. In other words, the driving part of the transmission member may have no grooves, and the barrel part of the handle may have no grooves.

In addition, in this embodiment, the arrangement of the two abutting surfaces 5312, 5313 of the pivoting post 531 of the handle 53 can limit the pivoting angle of the handle 53 relative to the storage position and the use position, so as to avoid the handle 53 Excessive pivoting.

In this embodiment, the pivotable angle of the handle 53 between the storage position and the use position is not limited to 90 degrees. In other embodiments, the direction in which the two abutment surfaces of the pivoting post face can be changed to adjust the pivotable angle of the handle between the storage position and the use position.

In addition, the assembly of the pivot post 531 of the handle 53 and the screw portion 511 is not intended to limit the present invention. In other embodiments, the pivot post of the handle may not be assembled with the screw part. Under such a configuration, the third slot of the driving part of the transmission member may not be connected to the first slot, and the pivot post of the handle may not have an assembly slot and two abutting surfaces. In another embodiment, the driving part of the transmission member may not have a third slot, and the handle may not have a pivot post, and the operating rod of the handle may be directly fixed to the driving part of the transmission member. Or, the drive assembly of the caliper piston pushback may not include a handle, and the screw part of the drive assembly can be rotated by directly rotating the drive part.

In this embodiment, by the combination of the positioning member 85 and the two positioning holes 5321, 5322 of the operating lever 532 of the handle 53, the handle 53 can be pivoted from the storage position to the use position, or from the use position to the storage position. In the position, the feel of the positioning handle 53 is provided to let the user know that the handle 53 has been pivoted to the position. However, the positioning of the positioning member 85 and the two positioning holes 5321 and 5322 of the operating rod 532 of the handle 53 are not intended to limit the present invention. In other embodiments, the caliper piston pushback may not have a positioning member, and the operating rod of the handle may not have any positioning holes.

In addition, in this embodiment, the number of the first assembly 65 is not limited to more than one. In other embodiments, the caliper piston pushback may only have one first positioning member.

In this embodiment, the caliper piston pushback 1 is applied to a caliper 2 with two pistons 3 as an example, but it is not limited to this. In other embodiments, the caliper piston pushback can be applied to a caliper with four or more pistons. For example, an extension piece can be added to the first pushing piece and the second pushing piece, so that the length of the two extending pieces is added to the length of the first pushing piece and the second pushing piece. After the length, the caliper piston pusher can be applied to calipers with more pistons to push back these pistons of the caliper.

Next, please refer to FIGS. 9 and 10. FIG. 9 is a schematic cross-sectional view of the caliper piston pushback in one of the use states according to the second embodiment of the present invention. 10 is a schematic cross-sectional view of the caliper piston pushback of FIG. 9 in another state of use.

In this embodiment, the caliper piston pushback 1a is similar to the caliper piston pushback in FIG. 1, so only the differences between the two will be described below.

In this embodiment, the operating rod 532a of the handle 53a of the driving assembly 50a includes an extension part 5323a and a force application part 5324a. One end of the extension 5323a of the operating lever 532a is connected to the pivoting post 531a of the handle 53a, and the force applying portion 5324a of the operating lever 532a is pivoted to the other end of the extension 5323a of the operating lever 532a, so that the handle 53a has Two use states.

As shown in FIG. 9, when the handle 53a in the use position is in one of the use states, the extension part 5323a of the operating rod 532a of the handle 53a and the force application part 5324a are located on the same straight line L. In this way, the extension part 5323a of the operating rod 532a of the handle 53a increases the moment arm of the driving part 512a and the screw part 511a of the rotating transmission member 51a, which can save effort.

As shown in FIG. 10, when the handle 53a in the use position is in another state of use, the extension 5323a of the operating rod 532a of the handle 53a and the force application portion 5324a are, for example, perpendicular to each other, and the long axis P3 of the force application portion 5324a is, for example, parallel In the axial direction of the grip 10a (such as the direction D1), the overall shape of the handle 53a is similar to a so-called hand crank. Thereby, the user can easily operate the handle 53a to drive the movable rod 30a to slide through the driving portion 512a and the screw portion 511a of the transmission member 51a.

In the above embodiment, the caliper piston pusher is operated manually, but it is not limited to this. In other embodiments, the caliper piston pushback can be operated electrically. For example, the caliper piston thruster may further include components such as a battery, a motor, a reduction box, and a switch. The battery provides the power required by components such as motors, gearboxes and switches. The motor is used to drive the screw part of the transmission member to rotate. The gearbox is used to control the speed of the motor. The switch is used to control the operation of the motor and other components.

In addition, the caliper piston pushback of the above embodiment is not limited to be used only to push back the caliper piston. In its embodiment, the caliper piston pushback can be used as a clamp, such as a clamp, for other purposes.

According to the caliper piston pushback of the above embodiment, since the movable rod is slidably located in the accommodating space of the grip rod, and the movable rod is slid by rotating the handle, the driving part and the stud part of the transmission member, it should be used When the handle is operated, the movable rod located in the accommodating space of the handle slides relative to the handle, but the handle, the driving part of the transmission member and the stud part do not slide linearly with respect to the handle. Therefore, the user's hand holding the grip and the hand of the operating handle can be prevented from interfering, so the smoothness of the operating handle can be maintained.

In addition, with the arrangement of the two abutting surfaces of the pivoting post of the handle, the pivoting angle of the handle relative to the storage position and the use position can be restricted, so as to avoid excessive pivoting of the handle relative to the grip rod.

Furthermore, the combination of the positioning member and the two positioning holes of the operating lever of the handle can provide the feel of positioning the handle when the handle is pivoted from the storage position to the use position or from the use position to the storage position. Let the user know that the handle has been pivoted into position.

In addition, when the handle is in the storage position, its long axis is parallel to the axial direction of the barrel of the grip rod, and the operating rod is located in the storage groove, which can improve the aesthetics of the appearance of the caliper piston pushback.

Moreover, the combination of the limiting member and the limiting groove of the movable rod can limit the sliding stroke of the movable rod relative to the grip rod, so as to prevent the movable rod from being separated from the grip rod.

Although the present invention is disclosed in the foregoing embodiments as above, it is not intended to limit the present invention. Anyone familiar with similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection for inventions shall be determined by the scope of patent applications attached to this specification.

1, 1a: caliper piston pushback 2: Calipers 3: Piston 4: Lai Ling 10.10a: Grip 11: Tube 111: accommodating space 112, 113: opening 114: Piercing 12: Lid 20: The first push piece 21: Wear a slot 30, 30a: active pole 31: Limit slot 32: screw hole 40: The second pusher 50, 50a: drive components 51, 51a: transmission parts 511, 511a: Screw part 5111: fixed hole 512, 512a: drive unit 5121: first slot 5122: second slot 5123: third slot 52: fixed parts 53, 53a: handle 531, 531a: pivot post 5311: assembly slot 5312, 5313: abutment surface 532, 532a: joystick 5321, 5322: positioning hole 5323a: Extension 5324a: force part 65: The first assembly 70: The second assembly 75: limit piece 80: stop 85: positioning parts 90: storage slot D1: direction P1: axis P2, P3: long axis L: straight line 115, 5124: Groove

Fig. 1 is a three-dimensional schematic diagram of a caliper piston pushback according to a first embodiment of the present invention. Fig. 2 is an exploded schematic diagram of Fig. 1. Fig. 3 is a schematic plan view of the bottom of the caliper piston pushback of Fig. 1. Fig. 4 is a schematic cross-sectional view taken along line 4-4 of Fig. 3; Fig. 5 is a schematic cross-sectional view taken along line 5-5 of Fig. 3; Fig. 6 is a schematic cross-sectional view of the handle of Fig. 5 in a use position. Fig. 7 is a schematic cross-sectional view of the first and second pushing members of Fig. 6 inserted between the pad and the piston of the caliper. FIG. 8 is a schematic cross-sectional view of the first pushing member and the second pushing member of FIG. 7 pushing the piston back. 9 is a schematic cross-sectional view of the caliper piston pushback in one of the use states according to the second embodiment of the present invention. 10 is a schematic cross-sectional view of the caliper piston pushback of FIG. 9 in another state of use.

1: Caliper piston pushback

10: Grip

20: The first push piece

40: The second pusher

50: drive components

70: The second assembly

Claims (41)

A caliper piston pushback for pushing two pistons of a caliper, including: A grip with a accommodating space; A movable rod slidably located in the accommodating space; A first pushing member fixed to the grip bar and located outside the accommodating space; A second pushing member fixed to the movable rod and located outside the accommodating space, the first pushing member and the second pushing member are respectively used to push the two pistons of the caliper; and A driving component is arranged on the grip rod and connected to the movable rod, and the grip rod cannot slide linearly with respect to the driving component, and the driving component is used to drive the movable rod to slide relative to the grip rod, so that the first pushing member And the second pushing member are close to or far away from each other. For the caliper piston pushback described in item 1 of the scope of patent application, the drive assembly includes a transmission member and a handle, the transmission member passes through the grip rod, and a part of the transmission member is located in the accommodating space. The other part of the transmission member is located outside the accommodating space, the handle is pivoted on the part of the transmission member located outside the accommodating space, one end of the transmission member located in the accommodating space is connected to the movable rod, and the handle is used to pass through the The transmission member drives the movable rod to slide relative to the grip rod. The caliper piston pushback described in item 2 of the scope of patent application, wherein the pivot axis of the handle is perpendicular to the sliding direction of the movable rod relative to the grip rod. For the caliper piston pushback described in item 2 of the scope of patent application, the transmission member includes a screw part and a driving part, the driving part is located outside the accommodating space, and the screw part penetrates the grip rod, One end of the screw part is located in the accommodating space and connected to the movable rod, the other end of the screw part is located outside the accommodating space and is fixed to the driving part, and the handle is pivoted to the driving part. According to the caliper piston pushback described in item 4 of the scope of patent application, the driving assembly further includes a fixing member, the driving part has a first slot and a second slot that are communicated with each other, and the first slot And the second slot respectively extend in two different directions, the end of the screw part located outside the accommodating space is inserted into the first slot and has a fixing hole, and the fixing member is inserted in the second Slot and the fixing hole. The caliper piston pushback described in item 5 of the scope of patent application, wherein the driving portion has a third slot communicating with the first slot, and the third slot and the first slot face different Extending in the direction, the handle includes a pivot post and an operating lever connected to each other. The pivot post is rotatably inserted into the third slot, so that the handle is pivoted on the driving part, and the handle can be stored in a Pivoted between a position and a use position, the pivoting post has an assembly groove and two abutting surfaces forming the assembling groove, the two abutting surfaces face in two different directions, and the assembling groove of the pivoting post is The screw part is assembled. When the handle is in the storage position, the screw part abuts against one of the abutting surfaces, and when the handle is in the use position, the screw part abuts against the other abutting surface. The caliper piston pushback described in item 6 of the scope of patent application, wherein when the handle is located in the storage position, the long axis of the operating rod of the handle is parallel to the axial direction of the grip rod, and when the handle is located in the In the use position, the long axis of the operating rod of the handle is perpendicular to the axial direction of the grip rod. The caliper piston pushback described in item 6 of the scope of patent application further includes a positioning member disposed on the driving portion and protruding from the outer surface of the driving portion, and the operating rod of the handle has two positioning When the handle is in the storage position, the positioning element is inserted into one of the positioning holes, and when the handle is in the use position, the positioning element is inserted into the other positioning hole. For the caliper piston pushback described in item 6 of the scope of patent application, the operating rod of the handle includes an extension part and a force applying part, the force applying part is pivoted at one end of the extension part, and the other of the extension part One end is connected to the pivot post. For example, the caliper piston pusher described in item 4 of the scope of patent application further includes a stopper, the grip includes a barrel portion and a cover portion, the cover portion and the first pushing member are respectively fixed to the barrel Two opposite ends of the part, the barrel part and the cover part jointly form the accommodating space, the stopper is located in the accommodating space and penetrates the screw part, and the stopper abuts against the cover. In the caliper piston pushback described in item 1 of the scope of patent application, the first pushing member is located between the second pushing member and the driving assembly. According to the caliper piston thruster described in item 1 of the scope of patent application, the grip rod has an opening communicating with the accommodating space, the first pushing member has a through groove, and the through groove communicates with the opening, and the movable The rod can slidably pass through the opening and the through slot. For example, the caliper piston pushback described in claim 1 further includes at least one first assembly and a second assembly. The first pusher is fixed to the grip through the at least one first assembly. The second pushing member is fixed to the movable rod through the second assembly member, and the projection of the at least one first assembly member in the sliding direction of the movable rod onto the second pushing member does not overlap with the second Assembled parts. For example, the caliper piston pushback described in item 1 of the scope of patent application further includes a limiting member, the movable rod has a limiting groove, the limiting groove extends along the axial direction of the movable rod, and the limiting member penetrates It is arranged on the grip bar, and part of the limiting member is located in the limiting groove. A caliper piston pushback for pushing two pistons of a caliper, including: A grip A movable rod slidably arranged on the grip rod; A first pushing member, fixed to the grip rod; A second pushing member fixed to the movable rod, the first pushing member and the second pushing member are respectively used to push the two pistons of the caliper; and A driving assembly includes a handle and a transmission member, the handle is pivoted on one end of the transmission member, the other end of the transmission member is connected to the movable rod, and the handle is used for driving the movable rod relative to the grip rod through the transmission member Sliding so that the first pushing member and the second pushing member are close to or far away from each other; Wherein, the handle can pivot relative to the grip rod between a storage position and a use position different from the storage position, and the pivot axis of the handle is perpendicular to the sliding direction of the movable rod relative to the grip rod. The caliper piston pushback described in the scope of patent application, wherein the transmission member includes a driving part and a screw part, one end of the screw part is connected to the movable rod, and the other end of the screw part is fixed to the driving part The handle is pivoted on the driving part, and the handle is used for driving the movable rod to slide relative to the grip rod through the driving part and the screw part. According to the caliper piston pushback described in claim 16, wherein the driving assembly further includes a fixing member, the driving part has a first slot and a second slot that are communicated with each other, and the first slot And the second slot extend in two different directions, the screw portion is inserted into the first slot, the screw portion has a fixing hole, and the fixing member is inserted into the second slot and the fixing hole . According to the caliper piston pushback described in item 17 of the scope of patent application, wherein the driving part has a third slot communicating with the first slot, and the third slot and the first slot face differently Extending in the direction, the handle includes a pivot post and an operating lever connected to each other. The pivot post is rotatably inserted into the third slot, so that the handle is pivoted on the driving part, and the handle can be stored in a Pivoted between a position and a use position, the pivoting post has an assembly groove and two abutting surfaces forming the assembling groove, the two abutting surfaces face in two different directions, and the assembling groove of the pivoting post is The screw part is assembled. When the handle is in the storage position, the screw part abuts against one of the abutting surfaces, and when the handle is in the use position, the screw part abuts against the other abutting surface. The caliper piston pushback described in item 18 of the scope of patent application, wherein when the handle is in the storage position, the long axis of the operating rod of the handle is parallel to the axial direction of the grip rod, and when the handle is located in the In the use position, the long axis of the operating rod of the handle is perpendicular to the axial direction of the grip rod. The caliper piston pushback described in item 18 of the scope of patent application further includes a positioning member disposed on the driving portion and protruding from the outer surface of the driving portion, and the operating rod of the handle has two positioning When the handle is in the storage position, the positioning element is inserted into one of the positioning holes, and when the handle is in the use position, the positioning element is inserted into the other positioning hole. The caliper piston pushback described in item 18 of the scope of patent application, wherein the operating rod of the handle includes an extension part and a force applying part, the force applying part is pivoted at one end of the extension part, and the other of the extension part One end is connected to the pivot post. According to the caliper piston pusher described in item 15 of the scope of patent application, the first pushing member is located between the second pushing member and the driving assembly. For example, the caliper piston pusher described in claim 15 further includes at least one first assembly and a second assembly. The first pusher is fixed to the grip through the at least one first assembly. The second pushing member is fixed to the movable rod through the second assembly member, and the projection of the at least one first assembly member in the sliding direction of the movable rod onto the second pushing member does not overlap with the second Assembled parts. For example, the caliper piston thruster described in item 15 of the scope of patent application further includes a limiting member, the movable rod has a limiting groove, the limiting groove extends along the axial direction of the movable rod, and the limiting member is fixed On the grip bar, and part of the limiting member is located in the limiting slot. A caliper piston pushback for pushing two pistons of a caliper, including: A grip A movable rod slidably arranged on the grip rod; A first push piece; At least one first assembling part, the first pushing part is fixed to the grip rod through the at least one first assembling part; A second pusher; A second assembling piece, the second pushing piece is fixed to the movable rod through the second assembling piece, the first pushing piece and the second pushing piece are respectively used to push the two pistons of the caliper; and A driving component connected to the movable rod, and the driving component is used to drive the movable rod to slide relative to the grip rod, so that the first pushing member and the second pushing member are close to or far away from each other; Wherein, the projection of the at least one first assembling part to the second pushing part in the sliding direction of the movable rod does not overlap the second assembling part. For the caliper piston thruster described in item 25 of the scope of patent application, the drive assembly includes a transmission member and a handle, the transmission member includes a driving portion and a screw portion, one end of the screw portion is connected to the movable rod, The other end of the screw part is fixed to the driving part, the handle is pivoted to the driving part, and the handle is used for driving the movable rod to slide relative to the grip rod through the driving part and the screw part. The caliper piston pushback described in item 26 of the scope of patent application, wherein the driving assembly further includes a fixing member, the driving part has a first slot and a second slot that are communicated with each other, and the first slot And the second slot extend in two different directions, the screw portion is inserted in the first slot, the screw portion has a fixing hole, and the fixing member is inserted in the second slot and the fixing hole . The caliper piston pushback described in item 27 of the scope of patent application, wherein the driving part has a third slot communicating with the first slot, and the third slot and the first slot face differently Extending in the direction, the handle includes a pivot post and an operating lever connected to each other. The pivot post is rotatably inserted into the third slot, so that the handle is pivoted on the driving part, and the handle can be stored in a Pivoted between a position and a use position, the pivoting post has an assembly groove and two abutting surfaces forming the assembling groove, the two abutting surfaces face in two different directions, and the assembling groove of the pivoting post is The screw part is assembled. When the handle is in the storage position, the screw part abuts against one of the abutting surfaces, and when the handle is in the use position, the screw part abuts against the other abutting surface. The caliper piston pushback described in item 28 of the scope of patent application, wherein when the handle is in the storage position, the long axis of the operating rod of the handle is parallel to the axial direction of the grip rod, and when the handle is located in the In the use position, the long axis of the operating rod of the handle is perpendicular to the axial direction of the grip rod. The caliper piston pushback described in item 28 of the scope of patent application further includes a positioning member disposed on the driving portion and protruding from the outer surface of the driving portion, and the operating rod of the handle has two positioning When the handle is in the storage position, the positioning member is inserted into one of the positioning holes, and when the handle is in the use position, the positioning member is inserted into the other positioning hole. The caliper piston pushback described in item 28 of the scope of patent application, wherein the operating rod of the handle includes an extension part and a force applying part, the force applying part is pivoted at one end of the extension part, and the other of the extension part One end is connected to the pivot post. According to the caliper piston pusher described in item 25 of the scope of patent application, the first pushing member is located between the second pushing member and the driving assembly. For example, the caliper piston thruster described in item 25 of the scope of patent application further includes a limiting member, the movable rod has a limiting groove, the limiting groove extends along the axial direction of the movable rod, and the limiting member is fixed On the grip bar, and part of the limiting member is located in the limiting slot. A caliper piston pushback for pushing two pistons of a caliper, including: A grip A movable rod slidably disposed on the grip rod, the movable rod has a limiting groove, and the limiting groove extends along the axial direction of the movable rod; A first pushing member, fixed to the grip rod; A second pushing member fixed to the movable rod, the first pushing member and the second pushing member are respectively used to push the two pistons of the caliper; A limiting member fixed to the grip bar, and part of the limiting member is located in the limiting slot; and A driving component is connected to the movable rod and used for driving the movable rod to slide relative to the grip rod, so that the first pushing member and the second pushing member are close to or far away from each other. For the caliper piston pushback described in item 34 of the scope of patent application, the driving assembly includes a transmission member and a handle, the transmission member includes a driving part and a screw part, one end of the screw part is connected to the movable rod, The other end of the screw part is fixed to the driving part, the handle is pivoted to the driving part, and the handle is used for driving the movable rod to slide relative to the grip rod through the driving part and the screw part. According to the caliper piston pushback described in item 35 of the scope of patent application, the driving assembly further includes a fixing member, the driving part has a first slot and a second slot that are communicated with each other, and the first slot And the second slot extend in two different directions, the screw portion is inserted into the first slot, the screw portion has a fixing hole, and the fixing member is inserted into the second slot and the fixing hole . The caliper piston pushback described in item 36 of the scope of patent application, wherein the driving portion has a third slot communicating with the first slot, and the third slot and the first slot face different Extending in the direction, the handle includes a pivot post and an operating lever connected to each other. The pivot post is rotatably inserted into the third slot, so that the handle is pivoted on the driving part, and the handle can be stored in a Pivoted between a position and a use position, the pivoting post has an assembly groove and two abutting surfaces forming the assembling groove, the two abutting surfaces face in two different directions, and the assembling groove of the pivoting post is The screw part is assembled. When the handle is in the storage position, the screw part abuts against one of the abutting surfaces, and when the handle is in the use position, the screw part abuts against the other abutting surface. The caliper piston pushback described in item 37 of the scope of patent application, wherein when the handle is in the storage position, the long axis of the operating rod of the handle is parallel to the axial direction of the grip rod, and when the handle is located in the In the use position, the long axis of the operating rod of the handle is perpendicular to the axial direction of the grip rod. The caliper piston pushback described in item 37 of the scope of patent application further includes a positioning member disposed on the driving portion and protruding from the outer surface of the driving portion, and the operating rod of the handle has two positioning When the handle is in the storage position, the positioning member is inserted into one of the positioning holes, and when the handle is in the use position, the positioning member is inserted into the other positioning hole. For the caliper piston pushback described in item 37 of the scope of patent application, wherein the operating rod of the handle includes an extension part and a force applying part, the force applying part is pivoted at one end of the extension part, and the other of the extension part One end is connected to the pivot post. According to the caliper piston thruster described in item 34 of the scope of patent application, the first pushing member is located between the second pushing member and the driving assembly.

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