TWM578264U - Labor-saving double-wheel synchronous brake device - Google Patents

Abstract

The utility model relates to a labor-saving two-wheel synchronous braking device, which is provided with an accommodating space by the main casing, the main casing defining a pulling zone and a driving zone; and connecting to the main casing through the connecting unit in a plate shape The body is disposed in the space and has a joint end; the opposite end is provided with the pull end; and defines a first pull end and a second pull end; The pulling zone is extended at the pulling end; a first actuating wire is connected to the first wire end; a second actuating wire is connected to the second wire end; and at least one elastic component, The utility model has elasticity and stretches the pulling line; thereby, a labor-saving two-wheel synchronous braking device is provided, and the lever principle is applied to press the handles on both sides to have the effect of first smashing the rear wheel and then smashing the front wheel, and simultaneously Press to increase the function of its braking force.

Description

Labor-saving two-wheel synchronous brake device

This creation is related to a front and rear wheel synchronous brake device, especially one for two wheels.  By means of the lever tool, and using the lever principle, the handlebars on both sides can be pressed and have the effect of first squeezing the rear wheel and then slamming the front wheel, and can simultaneously press to increase the function of the braking force.  

Press, nowadays people will have travel tools when they go out, and travel tools are usually smaller.  The bicycle or the locomotive is the main one, which is more convenient than the car, and the parking is convenient. It is not necessary for the car to find a suitable and large position. It is less susceptible to traffic jams during driving, however, its locomotive or bicycle lies in When the vehicle is braked, the front and rear wheels are braked separately, and the user's own braking force is used to reduce the speed. Although the expected braking effect can be achieved under normal use, the user may take the vehicle in a state of emergency. Pressing to the end, causing the tire to slip, even more neglecting the order of the front and rear wheels, causing the front wheel to brake and cause the overall imbalance and dump;  Therefore, more operators have designed a system that can control the front and rear wheel brakes unilaterally. It can control the unilateral brake lever and hold the front and rear wheels at the same time, so that the speed is reduced and stopped, while the brake lever on the other side controls the rear wheel brake separately, thereby slowing down. use.  

However, as far as the above is concerned, the general riding two-wheeled vehicle is under normal driving conditions.  The left and right brake handles can be used to decelerate and brake. However, in the event of an emergency, the brakes may cause the front wheels to smash first, resulting in poor balance and falling. In general, the brakes are on one side and the rear handles on the other. The handlebars of the brakes can be used to move the front and rear wheel brakes at the same time. However, in an emergency situation, it is possible that the pressure on the front and rear brakes is controlled by the unilateral force, and the user is unable to catch the car and chase the front vehicle. The fact that the wheel has caused slippage is a major drawback, and it needs to be improved.  

This creation provides a labor-saving two-wheel synchronous brake device, which includes:  a main housing is defined by an opening to define an accommodating space, and a plurality of connecting ends are disposed therein; the upper end of the main housing defines a pulling area, and two through holes are formed at predetermined intervals; The lower end of the casing defines a driving zone, and has two perforations and two pivoting portions;  a connecting unit is disposed in the accommodating space of the main casing, and is provided at one end of the connecting unit with a joint end, which is assembled at the assembly end of the accommodating space of the main casing Pivoted state  And at the other end of the opposite end of the combined end, a pulling end is provided, and the pulling end has two connecting portions;  A first wire end and a second wire end are defined between the joint end and the pull end, and the distance between the first wire end and the joint end is longer than the second wire end and the joint end The distance is long, and the connecting unit is rotated in the accommodating space of the main casing, so that the first wire end and the second wire end have different displacement amounts  And each of the punching holes of the driving portion of the main casing is respectively disposed with the first wire end and the second wire end;  The second pull line is disposed at each of the perforations of the pulling portion of the main casing, and is provided with a latching end, and each of the through holes extending through the pulling area and extending from the pulling end of the connecting unit Cards arrived at the connection department  status;  a first actuating line is provided for connecting the rear wheel brake, and is provided with a first connecting end, which is inserted through the through hole of the driving portion of the main casing and is connected to the first connecting wire of the connecting unit end;  a second actuating line is provided for connecting the front wheel brake, and is provided with a second connecting end, which is inserted through the through hole of the driving portion of the main casing and is connected to the second wire end of the connecting unit. ;and  At least one elastic element is a pivoting portion that is elastically connected to the driving region of the main casing and is connected to the latching end of each of the pulling wires, so that the elastic members are stretched to the pulling wire.  Wherein the pivoting portions of the main casing are presented in a perforated manner, and the elastic members are selected from the tension springs and are provided with a hook portion at the front and rear ends; the elastic members are wound around the pivot portions from the inside to the outside. And surrounding the outer end of the main casing, and being hooked to each other at the latching end of each of the pull wires by the hook portions;  Wherein the main housing further comprises a cover plate, and the cover is locked at the opening of the main housing;  The perforation of the pulling portion of the main casing and the perforation and pivoting portion of the driving portion are in an open manner toward the side end;  The at least one elastic piece is disposed between the first actuating line and the first wire end and between the second actuating wire and the second wire end for buffering the pressure channel;  Wherein the two connecting portions of the pulling end of the connecting unit are in parallel with each other, so that pulling the pulling wires drives the connecting unit to rotate with the same displacement amount;  Wherein the two connecting portions of the pulling end of the connecting unit are in a non-parallel state with each other, so that pulling each pulling line drives the connecting unit to rotate with different displacement amounts;  Each of the pull wires is combined with an outer wire and an inner wire, and the outer wire is connected to each of the perforations of the pulling portion of the main casing by an outer end, and the end of the inner wire is provided with the latch end and is pierced Each of the connecting portions of the pulling portion and the connecting portion of the connecting unit are in a stuck state;  Wherein the combination end of the accommodating space of the main casing and the connecting end of the connecting unit are combined  Combine with each other by concave and convex;  The connecting portion of the pulling end of the connecting unit and the first pulling end and the second pulling end are in the form of a side end open opening, and the card end of the pulling line and the first actuating line are The second connection end of the first connection end and the second actuation line can be engaged by the side end.  

The main purpose of this creation is to provide a labor-saving two-wheel synchronous brake device, especially  Refers to a two-wheeled travel tool, which uses the principle of lever to make the handles of both sides of the brakes can be pressed, and has the effect of squeezing the rear wheel and then the front wheel, and can simultaneously press to increase the function of the braking force.  

Due to the effort of the two-wheel synchronous brake device, the effect is:  The wheel passing tool defines an accommodating space by providing an opening in the main casing, and a set of connecting ends is disposed therein; the upper end of the main casing defines a pulling area, and the two holes are provided with two perforations a predetermined interval; the lower end of the main casing defines a driving zone, and has two perforations and two pivoting portions; and is connected to the receiving space of the main casing in a plate shape via the connecting unit, and is provided with a The connecting end is connected to the assembly end of the main housing to be pivoted; and the other end of the combining end is provided with the pulling end and has two connecting portions; and at the bonding end A first pull end and a second pull end are defined between the pull ends  And the distance between the first wire end and the joint end is farther than the distance between the second wire end and the joint end, so that the connection unit is rotated at the accommodating space of the main casing, so that the first a wire pull end and the second wire end have different displacement amounts, and each of the punching portions of the driving portion of the main casing is respectively disposed with the first wire end and the second wire end position; Each of the twisting wires is provided with an outer wire, and is disposed at each of the perforations of the pulling portion of the main casing; and an inner wire is provided with a latching end, so that the inner wire passes through each of the perforations of the pulling zone, and is extended and disposed Each of the connecting portions of the connecting end of the connecting unit is in a latched state; the first actuating line is configured to be connected to the rear wheel brake, and is provided with a first connecting end and is disposed through the main casing a perforation of the driving region of the body is connected to the first wire end of the connecting unit; and then through the second actuating line,  The utility model is provided for the front wheel brake, which is provided with a second connecting end, which is inserted through the through hole of the driving portion of the main casing and is connected to the second wire end of the connecting unit; and the main casing The pivoting portion of the driving region of the body is provided with at least one elastic component, and the latching end connected to each of the pulling wires has a pivoting portion which is elastically connected to the driving region of the main casing and makes each elastic force The component is stretched to the pulling line; thereby providing a labor-saving two-wheel synchronous braking device, especially a tool for two-wheeled walking, and using a lever principle to make the handles of both sides of the brakes can be pressed and have a sneak peek The rear wheel is next to the effect of the front wheel and can be pressed simultaneously to increase the function of the braking force.  

First, see FIG. 1 to FIG. 2, the present Creation "synchronization effort wheel brake devices"; system comprising: a main body 1, a connecting means 2, two pull latch line 3, a first The actuating wire 4, a second actuating wire 5 and at least one elastic component 6; wherein: the main casing 1 is provided with an opening 11 to define an accommodating space 10, and a set of connecting ends 101 is disposed therein; The upper end of the housing 1 defines a pulling area 12, which is provided with two through holes 121 at predetermined intervals. The lower end of the main housing 1 defines a driving area 13 having two through holes 1 31 and two pivoting portions 132. The connecting unit 2 is disposed in the accommodating space 10 of the main casing 1 and has a joint end 21 at one end of the connecting unit 2, which is assembled to the main casing 1 The connecting end 101 of the space 10 is pivoted; and the other end of the connecting end 21 is provided with a pulling end 22 having a connecting portion 221; The boundary between 21 and the pull end 22 a first pull end 23 and a second pull end 24 are provided, and the distance between the first pull end 23 and the joint end 21 is farther than the distance between the second pull end 24 and the joint end 21, The connecting unit 2 is coupled to the accommodating space 10 of the main casing 1 so that the first wire end 23 and the second wire end 24 have different displacement amounts, and the driving zone 13 of the main casing 1 Each of the through holes 131 is disposed at a position corresponding to the first wire end 23 and the second wire end 24; each of the pulling wires 3 is disposed at each of the through holes 121 of the pulling portion 12 of the main casing 1 and a latching end 30 is provided, and each of the connecting portions 221 extending through the through holes 121 of the pulling unit 12 and extending from the connecting end 22 of the connecting unit 2 is in a stuck state; the first actuating line 4, for the connection of the rear wheel brake, which is provided with a first connecting end 41, which is inserted through the through hole 131 of the driving area 13 of the main casing 1 and is connected to the first pulling of the connecting unit 2 Line end 23; the second actuating line 5 is used for connection The brake device is provided with a second connecting end 51, which is inserted through the through hole 131 of the driving portion 13 of the main casing 1 and is connected to the second cable end 24 of the connecting unit 2; and each elastic element 6, The pivoting portion 132 is elastically connected to the driving portion 13 of the main casing 1 and is connected to the latching end 30 of each of the pulling wires 3, so that the elastic members 6 are stretched toward the pulling wire 3. The above structure is further illustrated as follows: wherein each of the pivoting portions 132 of the main casing 1 is presented in a perforated pattern, and the elastic member 6 is selected from a tension spring and is provided at the front and rear ends. The hooking portion 61; the elastic member 6 is wound around the pivoting portion 132 from the inside to the outside and wound around the outer end of the main casing 1, and is hooked to the latch of each of the pulling wires 3 by the hooking portions 61 The main body 1 further includes a cover plate 111, and the cover is fixed at the opening 11 of the main casing 1; wherein the through hole 121 of the pulling portion 12 of the main casing 1 And the through hole 131 and the pivoting portion 13 of the driving area 13 The open end of the first end of the actuating wire 4 and the first wire end 23 and the second actuating wire 5 and the second wire end 24 are further provided with at least one elastic piece 7 The buffering pressure channel; wherein the two connecting portions 221 of the pulling end 22 of the connecting unit 2 are in parallel with each other, so that pulling the pulling wires 3 drives the connecting unit 2 to rotate with the same displacement; The two connecting portions 221 of the pulling end 22 of the connecting unit 2 are in a non-parallel relationship with each other, so that pulling the pulling wires 3 drives the connecting unit 2 to rotate with different displacement amounts; wherein each of the pulling wires 3 is An outer wire 31 and an inner wire 32 are combined, and the outer wire 31 is connected to each of the through holes 121 of the pulling portion 12 of the main casing 1 by an outer end, and the end of the inner wire 32 is provided with the latching end 30 and is worn. Each of the connecting portions 221 of the connecting portion 2 of the connecting unit 2 is in a latching state; wherein the receiving space 10 of the main housing 1 is assembled End 101 and The connecting end 21 of the connecting unit 2 is coupled to each other by a concave-convex snapping; wherein the connecting portion 221 of the pulling end 22 of the connecting unit 2 and the first pulling end 23 and the second pulling end 24 The side end open type of the opening is provided, and the card end 30 of the pulling line 3 and the first connecting end 41 of the first actuating line 4 and the second connecting end 51 of the second actuating line 5 are flankable by the side end By the above, please refer to FIG. 3 to FIG. 4 and supplemented by FIG. 2, which is a description of the use state of the preferred embodiment of the "saving two-wheel synchronous braking device". a main housing 1, a connecting unit 2, a second pulling line 3, a first actuating line 4, a second actuating line 5 and at least one elastic element 6; wherein: the main housing 1, the connecting unit 2 The structure of each of the pull lines 3, the first actuating line 4, the second actuating line 5, and the elastic elements 6 has been described above, and therefore will not be described. When in use, the two-wheeled travel tool will be used to brake the lever or grip The connecting unit 2 is disposed on the inner side of the main casing 1 , and the opening 11 is defined by the main casing 1 to define an accommodating space 10 . The upper end of the main casing 1 defines a pulling zone 12, which is provided with two through holes 121 at predetermined intervals; the lower end of the main casing 1 defines a driving zone 13 having two through holes 131 and The erecting portion 132 is further disposed in the accommodating space 10 of the main casing 1 through the connecting unit 2, and is provided at one end of the connecting unit 2 with a joint end 21, which is assembled The assembly end 101 of the accommodating space 10 of the main housing 1 is pivotally rotated; and the other end of the coupling end 21 is provided with a pulling end 22, and the pulling end 22 has two connections. a first wire end 23 and a second wire end 24 are defined between the joint end 21 and the pull end 22, and the distance between the first wire end 23 and the joint end 21 is The second wire end 24 and the joint end 1 is far away, so that the connecting unit 2 is rotated at the accommodating space 10 of the main casing 1, so that the first wire end 23 and the second wire end 24 have different displacement amounts, and the main shell Each of the through holes 131 of the driving portion 13 of the body 1 is disposed at a position corresponding to the first wire end 23 and the second wire end 24; and the pulling wires 3 connected to the brake lever of the traveling tool are disposed in the main shell Each of the through holes 121 of the pulling portion 12 of the body 1 is provided with a latching end 30, and each of the through holes 121 of the pulling portion 12 is extended and connected to the connecting end 22 of the connecting unit 2 The portion 221 is in a state of being stuck; the first actuating wire 4 is connected to the rear wheel brake, and the first connecting end 41 is connected to the through hole 131 of the driving portion 13 of the main casing 1 to be connected. The first cable end 23 of the connecting unit 2 and the second actuating wire 5 are connected to the front wheel brake, and the second connecting end 51 is disposed through the driving area 13 of the main casing 1. The through hole 131 is connected to the connecting unit 2 Two pull ends 24; therefore, one of the pull wires 3 can be pulled, and the connection unit 2 can be driven, and the brakes are first driven by the difference between the first pull ends 23 and the second pull ends 24. The front brake is further driven, and when one of the pull wires 3 is pulled, the other pull wire 3 is further pulled by the elastic members 6 to be stretched; and the elastic member 6 is selected from the tension spring. The hooking portion 61 is disposed at the front and rear ends; the elastic member 6 is wound around the pivoting portions 132 from the inside to the outside to surround the outer end of the main casing 1, so that the pulling wires 3 are connected to each other. When the pulling line 3 at one end presses the brake, the pulling line 3 at the other end is linked, and the driving can be mutually driven to have a certain limiting effect; and when the one-hand braking force is insufficient, the two ends of the two-wheel tool can be simultaneously pressed. Braking, and using the elastic element 6 can be extended to weaken the mutual driving effect, so that the elastic members 6 can be stretched when the two ends of the brake handle are pressed simultaneously, thereby increasing the braking force; thus, the creation can be further activated by the first action Line 4 and the first pull end Further, at least one elastic piece 7 is further disposed between the 23 and the second actuating wire 5 and the second wire end 24 for preventing the brake of the two brakes from being too strong, so that the brake is locked; In the two types, the two connecting portions 221 of the pulling end 22 of the connecting unit 2 are in parallel with each other, so that the brakes at both ends can be alternately used and the connecting unit 2 is rotated with the same displacement amount. The same braking effect; the other type is that the two connecting portions 221 of the pulling end 22 of the connecting unit 2 are not parallel to each other, so that pulling the pulling wires 3 to drive the connecting unit 2 to rotate differently The displacement amount, and the larger displacement amount is also far away from the joint end 21, so that a larger force arm is generated according to the lever principle, and more force is generated to pull the first actuation line 4 and the second actuation line 5, The light and heavy brakes are respectively used, and both of them are used in the order of the front wheel and the front wheel for safer braking at different speeds. At this point, the creation is in the assembly, the connection The connecting portion 221 of the pulling end 22 of the element 2 and the first pulling end 23 and the second pulling end 24 are in the form of a side end open opening; therefore, the latch end 30 of each pull wire 3 and the The first connecting end 41 of the first actuating wire 4 and the second connecting end 51 of the second actuating wire 5 can be installed by the side end opening; and the through hole 121 of the pulling zone 12 of the main casing 1 and the driving zone 13 The through hole 131 and the pivoting portion 132 are in the form of an open opening toward the side end, so that the pulling wires 3 and the first actuating wire 4 and the second actuating wire 5 are disposed in the main casing 1 It is easy to install and wear; because of the creation of the two-wheel synchronous braking device of the present invention, the utility model is that the utility model is used for the two-wheeled walking tool, and the main casing 1 is provided with an opening 11 to define an accommodating space 10, The upper end of the main casing 1 defines a pulling zone 12, which is provided with two through holes 121, which are spaced apart from each other by a predetermined interval; the lower end of the main casing 1 defines a driving zone 13 With two perforations 131 and two pivots The portion 132 is connected to the accommodating space 10 of the main casing 1 via the connecting unit 2, and is provided with a joint end 21 and assembled at the joint end 101 of the main casing 1. The pivoting state is pivoted; the other end of the combining end 21 is provided with the pulling end 22 and has two connecting portions 221; and a first between the connecting end 21 and the pulling end 22 is defined a wire end 23 and a second wire end 24, and the distance between the first wire end 23 and the joint end 21 is farther than the distance between the second wire end 24 and the joint end 21, so that the connecting unit 2 When the rotation of the accommodating space 10 of the main casing 1 is combined, the first wire end 23 and the second wire end 24 are caused to have different displacement amounts, and the perforations of the driving zone 13 of the main casing 1 are further The 131 series are respectively disposed at the position of the first wire end 23 and the second wire end 24; and each of the drawing wires 3 is provided with an outer wire 31, and each of the perforations of the pulling zone 12 of the main casing 1 is provided. 121; and an internal line 32, with a card 30, the inner wire 32 is disposed in each of the through holes 121 of the pulling portion 12, and extends at each of the connecting portions 221 of the pulling end 22 of the connecting unit 2; the first actuating line 4 is For the rear wheel brake, which is provided with a first connecting end 41, and is inserted through the through hole 131 of the driving portion 13 of the main casing 1 and connected to the first connecting wire of the connecting unit 2 The second driving line 5 is connected to the front wheel brake, and is provided with a second connecting end 51, which is connected to the through hole 131 of the driving area 13 of the main casing 1 and connected. The second cable end 24 of the connecting unit 2; and the pivoting portion 132 of the driving area 13 of the main casing 1 is provided with at least one elastic element 6 and is connected to the latch end of each of the pulling wires 3 30 is a pivoting portion 132 which is elastically connected to the driving portion 13 of the main casing 1 and causes the elastic members 6 to be stretched to the pulling line 3; thereby providing a labor-saving two-wheel synchronous braking device Device, especially one for two-wheeled travel tools, and By lever principle, the brake handles on both sides can be pressed, and the function of the front wheel and the front wheel can be pressed first, and the function of the brake force can be simultaneously pressed to increase the braking force.

In summary, a labor-saving two-wheel synchronous brake device has not been seen in books or  Public use, in line with the requirements of the new patent application, please ask the Bureau to understand the patent, as soon as possible to grant patents, to pray. For those who need to be clear, the above is the specific embodiment of the creation and the technical principles applied.  According to the changes made in the concept of this creation, the functional role produced by it has not exceeded the specifications and drawings.  The spirit of the cover should be combined with Chen Ming within the scope of this creation.  

[this creation]  1‧‧‧ main housing

10‧‧‧ accommodating space  101‧‧‧ group end

11‧‧‧ openings  111‧‧‧ Cover

12‧‧‧ Pull zone  121‧‧‧Perforation

13‧‧‧Drive Zone  131‧‧‧Perforation

132‧‧‧Pivot Department  2‧‧‧ Connection unit

21‧‧‧Binding end  22‧‧‧ Pulling end

221‧‧‧ Connection Department  23‧‧‧First pull end

24‧‧‧Second pull end  3‧‧‧掣掣线

30‧‧‧Card end  31‧‧‧ outside line

32‧‧‧Inside  4‧‧‧First act line

41‧‧‧First connection end  5‧‧‧Second actuating line

51‧‧‧Second terminal  6‧‧‧ resilient components

61‧‧‧Hooking Department  7‧‧‧Shrap  

The first picture is a three-dimensional diagram of the creation.  Figure 2 is a three-dimensional exploded view of the creation.  Figure 3 is a schematic cross-sectional view (I) of the use state of the preferred embodiment of the present invention.  Figure 4 is a schematic cross-sectional view showing the state of use of the preferred embodiment of the present invention (2).  

Claims (10)

A labor-saving two-wheel synchronous braking device, comprising:  a main housing is defined by an opening to define an accommodating space, and a plurality of connecting ends are disposed therein; the upper end of the main housing defines a pulling area, and two through holes are formed at predetermined intervals; The lower end of the casing defines a driving zone, and has two perforations and two pivoting portions;  a connecting unit is disposed in the accommodating space of the main casing, and is provided at one end of the connecting unit with a joint end, which is assembled at the assembly end of the accommodating space of the main casing Pivoted state  And the other end of the opposite end of the joint end is provided with a pull end, the pull end has two connecting portions; and the first pull end and the first end are defined between the joint end and the pull end a second wire end, and the distance between the first wire end and the joint end is farther than the distance between the second wire end and the joint end, so that the connecting unit rotates in conjunction with the accommodating space of the main casing. Causing the first wire end and the second wire end to have different displacements  And each of the punching holes of the driving portion of the main casing is respectively disposed with the first wire end and the second wire end;  The second pull line is disposed at each of the perforations of the pulling portion of the main casing, and is provided with a latching end, and each of the through holes extending through the pulling area and extending from the pulling end of the connecting unit The card is in the state of the card;  a first actuating line is provided for connecting the rear wheel brake, and is provided with a first connecting end, which is inserted through the through hole of the driving portion of the main casing and is connected to the first connecting wire of the connecting unit end;  a second actuating line is provided for connecting the front wheel brake, and is provided with a second connecting end, which is inserted through the through hole of the driving portion of the main casing and is connected to the second wire end of the connecting unit. ;and  At least one elastic element is a pivoting portion that is elastically connected to the driving region of the main casing and is connected to the latching end of each of the pulling wires, so that the elastic members are stretched to the pulling wire.   The labor-saving two-wheel synchronous braking device according to claim 1, wherein each of the pivoting portions of the main casing is presented in a perforated manner, and the elastic member is selected from a tension spring and a hook portion is provided at the front and rear ends.  The elastic element is wound around the pivoting portion from the inside to the outside and surrounds the outer end of the main housing, and is hooked to the latching end of each pull line by the hook portions.   The power-saving two-wheel synchronous braking device according to claim 1, wherein the main casing further comprises a cover plate, and the cover is locked at an opening of the main casing. The labor-saving two-wheel synchronous braking device according to claim 1, wherein the perforation of the pulling portion of the main casing and the perforation and pivoting portion of the driving portion are in an open opening configuration toward the side end. The apparatus of claim 1 , wherein at least one elastic piece is further disposed between the first actuation line and the first actuation line and between the second actuation line and the second extension end. For buffering press pressure. The power-saving two-wheel synchronous braking device according to claim 1, wherein each of the two connecting portions of the connecting end of the connecting unit is in a parallel state, so that pulling each pulling line drives the connecting unit to rotate with the same displacement. The power-saving two-wheel synchronous braking device according to claim 1, wherein each of the two connecting portions of the connecting end of the connecting unit is in a non-parallel state, so that pulling each pulling line drives the connecting unit to rotate with different displacements. . The power-saving two-wheel synchronous braking device according to claim 1, wherein each of the pulling wires is combined with an outer wire and an inner wire, and the outer wire is connected to each of the perforations of the pulling portion of the main casing by the outer end, and The end of the inner wire is provided with the latching end, and is inserted into each of the through holes of the pulling zone and extends at a connection end of the connecting end of the connecting unit. The labor-saving two-wheel synchronous braking device according to claim 1, wherein the joint end of the accommodating space of the main casing and the joint end of the connecting unit are combined with each other by concave-convex engagement. The power-saving two-wheel synchronous braking device according to claim 1, wherein the connecting portion of the connecting end of the connecting unit and the first pulling end and the second pulling end are in a side open open manner for the The card end of the pull line and the first connection end of the first actuation line and the second connection end of the second actuation line can be engaged by the side end.