CN203439088U

CN203439088U - Pulling device of trolley brake line

Info

Publication number: CN203439088U
Application number: CN201320303384.5U
Authority: CN
Inventors: 茅鸿勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-14
Filing date: 2013-05-14
Publication date: 2014-02-19
Anticipated expiration: 2023-05-14

Abstract

A pulling device of a trolley brake line comprises a press block (1), a lever strip (2), and a sleeve (3), wherein the lever strip (2) is placed in an inner cavity (41) of a push rod (4), the sleeve (3) can vertically and movably wrap the upper part of the push rod (4) inside, an opening (42) is arranged on the top of the push rod (4), the lower part of the press block (1) extends into the inner cavity (41) of the push rod (4) through the opening (42) and supports with the one end of the lever strip (2), the other end of the lever strip (2) is connected with the brake line (5), the lever strip (2) is movably connected with the push rod (4) by a rotation shaft (6), and the upper part of the press block (1) is supported with the inner wall of the top surface of the sleeve (3). The pulling device has the following advantages that: when the sleeve on the push rod is held by a hand, the hand automatically presses downwards due to gravity and the sleeve is made to move downwards and the press block is driven to press downwards, a brake line is pulled upwards, and thus the trolley normally moves forwards and backwards. When the hand is off from the push rod, one end of the lever strip upwarps due to the self-weight of the lever strip, the sleeve is driven to move upwards and automatically reset, so that the brake core automatically locks the brake part.

Description

The pull unit of go-cart brake cable

Technical field

The utility model relates to a kind of brake gear manufacture technology field of go-cart, especially refers to a kind of pull unit of go-cart brake cable.

Background technology

Existing a kind of patent No. is that 201110194869.0 Chinese invention patents that are called a < < automatic brake device for baby stroller > > disclose a kind of structure, its structure includes left side and the right side that is independently present in respectively go-cart rear end, each independent braking device comprises moving position cover, locating bush, wheel seat, compressing spring, the axle of stopping, upper end carries the line etc. of stopping of cross-peen, the line of stopping is directly connected or indirectly connects by double-deck external member with the axle of stopping, utilize go-cart person to be applied to thrust on handgrip and promote stop line and adjacent the stopping axle and realize brake release between tooth of stopping of wheel, artificial thrust on handgrip removes, and spring tension in wheel seat promotes to stop adjacent stop between tooth of the swift incision wheel of axle and realizes brake.This dead-man's device has improved the baby's personal safety coefficient in go-cart and has used the convenience of go-cart.But the shortcoming of this brake gear is, project organization is unreasonable, because of brake cable in brake gear, stretching position needs handgrip to press down to pull brake cable, so pull structure to be easy to damage, again because handgrip is heavier, therefore it is also bad that it returns effect again, causes brake not check doll carriage in time and occur accident.Therefore, the structure of this dead-man's device also needs further improvement.

Summary of the invention

Technical problem to be solved in the utility model is for above-mentioned prior art present situation, to provide a kind of design ingenious, easy to operate, not fragile and use the pull unit of sensitive go-cart brake cable.

The utility model solves the problems of the technologies described above adopted technical scheme: a kind of pull unit of go-cart brake cable, comprise the controller being installed in go-cart, it is characterized in that: described controller is installed and is placed on the push rod of go-cart, described controller comprises briquetting, lever bar, sleeve pipe, described lever bar is placed in the inner chamber of push rod, the L shaped inner chamber of the shape of described lever bar and push rod one side is suitable, described sleeve pipe can be wrapped in the top of push rod wherein up or down, at described push rod top, be provided with the opening with the intracavity inter-connection of push rod, the bottom of described briquetting is together with being supported on one end of described lever bar opening extend into the inner chamber of push rod, the other end of described lever bar is connected with brake cable, described lever bar is movably connected and is connect by rotating shaft and push rod, the top of described briquetting is supported mutually with the end face inwall of sleeve pipe.

As improvement, the maximum displacement that described sleeve pipe moves up and down is greater than the maximum displacement distance between lever bar bottom surface and push rod inner chamber bottom surface.

As improvement, the bottom of described briquetting also can be concaved with groove, and one end of described lever bar is that end face is together with groove floor kinematic support.Thereby make briquetting contact with lever bar more accurately, stablize.

As improvement, in the inner chamber of described sleeve pipe and be positioned on the push rod upper surface of briquetting the right and left position and also can be provided with the elastomer block playing reset role, this elastomer block can be preferably sponge block.

Improve, on the push rod bottom surface of the side away from lever bar, also can be provided with extruding block, on described sleeve pipe bottom surface, be provided with perforate, the bottom surface of sleeve pipe is stretched out in one end of described extruding block from perforate.When hand is pressed extruding block, can make sleeve pipe move down, further promote to move in brake cable and the core that makes to brake keeps pulling up state.

Improve, the bottom surface of described extruding block is connected with the more comfortable attached plate of shaking hands again, and makes to shake hands more comfortable.

Improve, described sleeve pipe can be preferably and involutory push rod is wrapped in wherein again, and fixed with each other by screw or bolt.

Improve, described briquetting end face shape inner wall shape corresponding to sleeve pipe is suitable again, and is provided with cavity at briquetting end face middle part, on the bottom surface of described sleeve pipe and cavity correspondence position, is provided with projection, and described projection can be inserted in cavity actively.

Improve, on described push rod and the below that is positioned at lever bar is provided with the limiting stopper of brake cable again, is provided with the position-limited trough of brake cable process in described limiting stopper.

Compared with prior art, pull unit of the present utility model comprises briquetting, lever bar, sleeve pipe, described lever bar is placed in the inner chamber of push rod, the L shaped inner chamber of the shape of described lever bar and push rod one side is suitable, described sleeve pipe can be wrapped in the top of push rod wherein up or down, at described push rod top, be provided with the opening with the intracavity inter-connection of push rod, the bottom of described briquetting is together with being supported on one end of described lever bar opening extend into the inner chamber of push rod, the other end of described lever bar is connected with brake cable, described lever bar is movably connected and is connect by rotating shaft and push rod, the top of described briquetting is supported mutually with the end face inwall of sleeve pipe.This design advantage is: during sleeve pipe on holding push rod, due to Action of Gravity Field, automatically press down, sleeve pipe is moved down and drive briquetting to press down, because the bottom of briquetting contacts with lever bar one end, force one end of lever bar to move down, and the other end that makes lever bar upwarps and pulls brake cable, the core that makes to brake upwards pulls up, and realizes normally moving forward and backward of go-cart; And when hand departs from push rod, because the deadweight of lever bar makes lever bar one end upwarp to drive on sleeve pipe, move and automatically reset, the core that brakes blocks brake portion automatically, therefore, no matter on plane road surface or on slope pavement, as long as go-cart is without just automatically stopping under External Force Acting, thereby realized the object of using safely; And the utility model is simple in structure, it is ingenious, easy to operate, flexible, specious to design, and use feel very free and relaxed, effectively reached the control effect processed of brake.

Accompanying drawing explanation

Fig. 1 is the block diagram of the utility model embodiment;

Fig. 2 is the sectional stereogram of the longitudinal central axis line of Fig. 1;

Fig. 3 is the front projection figure of Fig. 1;

Fig. 4 is along the cutaway view of A-A line in Fig. 3;

Fig. 5 is along the cutaway view of B-B line in Fig. 3;

Fig. 6 is the enlarged drawing of I portion in Fig. 4;

Fig. 7 is the enlarged drawing of II portion in Fig. 5;

Fig. 8 is along the cutaway view of C-C line in Fig. 3;

Fig. 9 is the cutaway view removing in Fig. 6 after briquetting;

Figure 10 is the block diagram of briquetting in Fig. 2;

Figure 11 is the block diagram at another visual angle of briquetting in Figure 10:

Figure 12 is the cutaway view that removes briquetting in Fig. 2.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.

As shown in Figures 1 to 12, the present embodiment the pull unit of go-cart brake cable, comprise the controller being installed in go-cart, described controller is installed and is placed on the push rod 4 of go-cart, described controller comprises briquetting 1, lever bar 2, sleeve pipe 3, described lever bar 2 is placed in the inner chamber 41 of push rod 4, the L shaped inner chamber 41 of the shape of described lever bar 2 and push rod 4 one sides is suitable, described sleeve pipe 3 can be wrapped in the top of push rod 4 wherein up or down, at described push rod 4 tops, be provided with the opening 42 being connected with the inner chamber 41 of push rod 4, the bottom of described briquetting 1 is together with being supported on one end of described lever bar 2 opening 42 extend into the inner chamber 41 of push rod 4, the other end of described lever bar 2 is connected with brake cable 5, described lever bar 2 is movably connected and is connect by rotating shaft 6 and push rod 4, the top of described briquetting 1 is supported mutually with the end face inwall of sleeve pipe 3.The maximum displacement S that described sleeve pipe 3 moves up and down is greater than the maximum displacement distance H between lever bar 2 bottom surfaces and push rod 4 inner chamber bottom surfaces.In the bottom of briquetting 1, be concaved with groove 11, one end of described lever bar 2 is that end face is together with groove floor 13 kinematic supports.In the inner chamber 30 of sleeve pipe 3 and be positioned on push rod 4 upper surfaces of briquetting 1 the right and left position and be provided with the elastomer block 7 playing reset role, this elastomer block 7 of the present embodiment adopts sponge blocks.On push rod 4 bottom surfaces of the side away from lever bar 2, be connected with extruding block 8, on described sleeve pipe 3 bottom surfaces, be provided with perforate, the bottom surface of sleeve pipe 3 is stretched out in one end of described extruding block 8 from perforate, and is connected with in the bottom surface of extruding block 8 the more comfortable attached plate 81 of shaking hands.On push rod 4 and be positioned at lever bar 2 below be provided with the limiting stopper 9 of brake cable 5, in described limiting stopper 9, be provided with the position-limited trough 91 of brake cable 5 processes.

Above-mentioned sleeve pipe 3 is wrapped in push rod 4 wherein for involutory, and fixed with each other by screw 31 or bolt.Briquetting 1 end face shape is suitable with the corresponding inner wall shape of sleeve pipe 3, and is provided with cavity 12 at briquetting 1 end face middle part, on the bottom surface of described sleeve pipe 3 and cavity 12 correspondence positions, is provided with projection 32, and described projection 32 can be inserted in cavity 12 actively.

Claims

1. the pull unit of a go-cart brake cable, comprise the controller being installed in go-cart, it is characterized in that: described controller is installed and is placed on the push rod (4) of go-cart, described controller comprises briquetting (1), lever bar (2), sleeve pipe (3), described lever bar (2) is placed in the inner chamber (41) of push rod (4), the L shaped inner chamber (41) of the shape of described lever bar (2) and push rod (4) one sides is suitable, described sleeve pipe (3) can be wrapped in the top of push rod (4) wherein up or down, at described push rod (4) top, be provided with the opening (42) being connected with the inner chamber (41) of push rod (4), the bottom of described briquetting (1) is together with being supported on one end of described lever bar (2) opening (42) extend into the inner chamber (41) of push rod (4), the other end of described lever bar (2) is connected with brake cable (5), described lever bar (2) is movably connected and is connect by rotating shaft (6) and push rod (4), the top of described briquetting (1) is supported mutually with the end face inwall of sleeve pipe (3).

2. pull unit according to claim 1, is characterized in that: the maximum displacement (S) that described sleeve pipe (3) moves up and down is greater than the maximum displacement distance (H) between lever bar (2) bottom surface and push rod (4) inner chamber bottom surface.

3. pull unit according to claim 2, is characterized in that: the bottom of described briquetting (1) is concaved with groove (11), and one end of described lever bar (2) is that end face is together with groove floor (13) kinematic support.

4. according to arbitrary described pull unit in claims 1 to 3, it is characterized in that: in the inner chamber (30) of described sleeve pipe (3) and be positioned on push rod (4) upper surface of briquetting (1) the right and left position and be provided with the elastomer block (7) playing reset role.

5. pull unit according to claim 4, is characterized in that: described elastomer block (7) is sponge block.

6. according to arbitrary described pull unit in claims 1 to 3, it is characterized in that: on push rod (4) bottom surface of the side away from lever bar (2), be provided with extruding block (8), on described sleeve pipe (3) bottom surface, be provided with perforate, the bottom surface of sleeve pipe (3) is stretched out in one end of described extruding block (8) from perforate.

7. pull unit according to claim 6, is characterized in that: the bottom surface of described extruding block (8) is connected with the more comfortable attached plate (81) of shaking hands.

8. according to arbitrary described pull unit in claims 1 to 3, it is characterized in that: described sleeve pipe (3) is wrapped in push rod (4) wherein for involutory, and fixed with each other by screw (31) or bolt.

9. pull unit according to claim 8, it is characterized in that: described briquetting (1) end face shape is suitable with the corresponding inner wall shape of sleeve pipe (3), and be provided with cavity (12) at briquetting (1) end face middle part, on the bottom surface of described sleeve pipe (3) and cavity (12) correspondence position, be provided with projection (32), described projection (32) can be inserted in cavity (12) actively.

10. according to arbitrary described pull unit in claims 1 to 3, it is characterized in that: described push rod (4) below upper and that be positioned at lever bar (2) is provided with the limiting stopper (9) of brake cable (5), in described limiting stopper (9), be provided with the position-limited trough (91) of brake cable (5) process.