CN219134133U

CN219134133U - Trailer brake

Info

Publication number: CN219134133U
Application number: CN202223107233.0U
Authority: CN
Inventors: 初桂林; 初峰
Original assignee: Dalian Dassel Metal Products Co ltd
Current assignee: Dalian Dassel Metal Products Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-06-06
Anticipated expiration: 2032-11-23

Abstract

The utility model provides a trailer brake is applied to the connection between trailer and the locomotive that pulls, can realize that the locomotive is when the brake, and trailer brake is slowly braked the function of trailer, improves automobile body security of traveling. Comprises an outer shell, a first gas spring, a fixed disc, a ball fixing mechanism and a lever; the fixed disc is arranged in the outer shell and positioned at the right end of the outer shell, the left end of the outer shell is provided with an opening, a piston rod of the first gas spring penetrates through the opening at the left end of the outer shell to be connected with the fixed disc, the middle part of the lever is connected with the lower part of the fixed disc through a rivet, the lower end of the lever is provided with a through hole, and the upper part of the lever is positioned at the right side of a cylinder barrel of the first gas spring; the position where the first gas spring is connected with the fixed disc is positioned at the left side of the position where the lever is connected with the fixed disc.

Description

Trailer brake

Technical Field

The utility model belongs to the technical field of trailers, and relates to a trailer brake.

Background

The tractor head is connected with the trailer in the prior art and is used for traction of the trailer, the tractor head and the trailer are always rigidly connected, when the tractor head is used for emergency braking, the trailer continues to move forwards due to inertia, so that the connection structure between the tractor head and the trailer is impacted, and the connection structure is damaged when serious, so that potential safety hazards exist in vehicle driving.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the following technical scheme:

a trailer brake comprises an outer shell, a first gas spring, a fixed disc and a lever;

the fixed disk is arranged in the outer shell and positioned at the right end of the outer shell, an opening is formed in the left end of the outer shell, a piston rod of the first gas spring penetrates through the opening in the left end of the outer shell to be connected with the fixed disk, the middle part of the lever is connected with the lower part of the fixed disk through a rivet, a through hole is formed in the lower end of the lever, and the upper part of the lever is positioned on the right side of a cylinder barrel of the first gas spring.

The hand brake system comprises a first connecting rod, a second connecting rod and a hand brake rod, wherein the lower part of the hand brake rod is positioned in the outer shell, and the lower part of the hand brake rod is connected with the outer shell through a rivet; one end of the first connecting rod is riveted with the upper end of the lever, and the other end of the first connecting rod is riveted with the second connecting rod;

the fixed disk is provided with an arc slot hole used for being connected with the second connecting rod, a fixed rivet is arranged in the arc slot hole, and the part of the fixed rivet outside the arc slot hole penetrates through the second connecting rod and the hand brake rod to rivet the second connecting rod and the hand brake rod.

As a supplement to the technical scheme, the hand brake system further comprises a pawl, a push rod, a button and a return spring;

the upper edge of the fixed disc is provided with gear teeth which are arranged in an arc shape, a slide way is arranged in the hand brake rod, the push rod is arranged in the slide way of the hand brake rod, and a button connected with the upper end of the push rod is arranged at a port of the upper end of the slide way of the hand brake rod; a pawl is arranged between the end opening of the lower end of the slideway of the hand brake rod and the fixed disc, the middle part of the pawl is arranged on the hand brake rod through a rivet, the right end of the pawl is riveted with the lower end of the push rod, the left end of the pawl is meshed with gear teeth on the fixed disc,

the sliding way of the hand brake rod is internally provided with a protruding part connected with the inner side wall of the hand brake rod, the reset spring is sleeved on the push rod, one end of the reset spring is connected with the button, the other end of the reset spring is connected with the protruding part arranged on the inner side wall of the hand brake rod, the reset spring applies thrust to the button and drives the push rod to apply tension to the right end of the pawl, so that the left end of the pawl is meshed with the gear teeth on the fixed disc.

As a supplement to the technical proposal, the hand brake system also comprises a second gas spring and an unhooking safety rope; the lower end of the hand brake rod is connected with a unhooking safety rope, and the other end of the unhooking safety rope is connected with a traction locomotive; the second gas spring is arranged in the slideway of the hand brake rod, one end of the second gas spring is connected with the hand brake rod, the riveting position is positioned at the position of the upper end port of the slideway of the hand brake rod, and the other end of the second gas spring is riveted with the fixed disc.

The technical scheme is that the novel ball head fixing device further comprises a dust cover, wherein the dust cover is sleeved on the first gas spring, the dust cover is located between the outer shell and the ball head fixing mechanism, and the ball head fixing mechanism is arranged at the left end of the cylinder barrel of the first gas spring.

The beneficial effects are that: in one aspect, the braking buffer function of the trailer is realized through the arrangement of the first gas spring, and the running safety of the trailer is improved. In another aspect of the utility model, the locking function of the trailer is realized through the arrangement of the hand brake system, and in addition, the safety of the traction head in the process of traction of the trailer is further improved through the arrangement of the unhooking safety rope in the hand brake system.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic cross-sectional view of the present utility model.

Fig. 3 is a schematic cross-sectional view of the present utility model.

Fig. 4 is a schematic cross-sectional view of the present utility model.

Fig. 5 is a schematic diagram of the hand brake system of the present utility model.

In the figure: 1. the hand brake comprises an outer shell, a first gas spring, a fixed disc, a ball head fixing mechanism, a lever and a hand brake system, wherein the ball head fixing mechanism comprises the first gas spring, the fixed disc, the ball head fixing mechanism, the lever and the hand brake system, the first connecting rod, the second connecting rod, the hand brake rod, the arc groove hole, the pawl, the push rod, the push button, the reset spring, the gear tooth, the second gas spring, the unhooking safety rope, the dust cover, the protruding portion and the fixed rivet.

Detailed Description

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 5, the trailer brake is applied to connection between a trailer and a traction head, and can realize the function of slowly braking the trailer when the traction head brakes, so that the driving safety of a vehicle body is improved. Comprises an outer shell 1, a first gas spring 2, a fixed disc 3, a ball fixing mechanism 4 and a lever 5.

The shell body 1 is arranged on the trailer, the fixed disk 3 is arranged in the shell body 1 and is positioned at the right end of the shell body 1, an opening is formed in the left end of the shell body 1, the right end of a piston rod of the first gas spring 2 penetrates through the opening in the left end of the shell body 1 to be connected with the fixed disk 3, and when the first gas spring 2 is compressed, a cylinder barrel of the first gas spring 2 stretches and contracts relative to the shell body 1. The left end of the cylinder barrel of the first gas spring 2 is connected with a ball fixing mechanism 4 connected with a traction head. The lever 5 is of a strip-shaped structure, the middle part of the lever 5 is connected with the lower part of the fixed disc 3 through rivets, the lever 5 can rotate relative to the fixed disc 3, a through hole used for being connected with a trailer brake cable is formed in the lower end of the lever 5, and the upper part of the lever 5 is located on the right side of the cylinder barrel of the first gas spring 2.

The position where the first gas spring 2 is connected with the fixed disk 3 is located on the right side of the position where the lever 5 is connected with the fixed disk 3. When the traction head brakes, the traction head decelerates, the trailer keeps moving forwards due to inertia, the first gas spring 2 is compressed at the moment, the cylinder barrel of the first gas spring 2 moves towards the direction of the fixed disc 3 to push the upper part of the lever 5 to move to the right side, at the moment, the lower end of the lever 5 moves to the left side, and the brake cable is pulled when the lower end of the lever 5 moves to the left side, so that the braking and slow braking function of the trailer is realized.

As a preferred technical scheme of the utility model, the hand brake system 6 for driving the lever 5 to rotate is further included, and the hand brake system 6 comprises a first connecting rod 7, a second connecting rod 8 and a hand brake rod 9. The lower part of the hand brake lever 9 is positioned in the outer shell 1, and the lower part of the hand brake lever 9 is connected with the outer shell 1 through rivets, so that the lower part of the hand brake lever 9 can rotate relative to the outer shell 1. One end of the first connecting rod 7 is riveted with the upper end of the lever 5, the other end of the first connecting rod 7 is riveted with the second connecting rod 8, the fixed disc 3 is provided with an arc slot 10 used for being connected with the second connecting rod 8, a fixed rivet 20 is arranged in the arc slot 10, and the part of the fixed rivet 20 outside the arc slot 10 penetrates through the second connecting rod 8 and the hand brake rod 9 to rivet the second connecting rod 8 and the hand brake rod 9. The position where the second connecting rod 8 is connected with the hand brake rod 9 through the fixing rivet 20 is located at one end, far away from the first connecting rod 7, of the second connecting rod 8.

In the above embodiment, when the hand brake lever 9 is pulled to rotate the hand brake lever 9 relative to the outer casing 1, the end of the second link 8 connected to the hand brake lever 9 is driven to move along the circular arc slot 10 on the fixed disc 3. As shown in fig. 5, when the hand brake lever 9 is pulled up, the hand brake lever 9 rotates clockwise, so that the right end of the second connecting rod 8 moves rightward along the circular arc slot 10 on the fixed disc 3, the left end of the second connecting rod 8 pulls the first connecting rod 7, thereby driving the upper end of the lever 5 to move rightward, so that the lower end of the lever 5 moves leftward, and the lower end of the lever 5 pulls the brake cable of the trailer, so as to lock the trailer. When the hand brake lever 9 is pressed down, the hand brake lever 9 rotates anticlockwise, the right end of the second connecting rod 8 moves leftwards along the arc slot 10 on the fixed disc 3, the left end of the second connecting rod 8 pushes the first connecting rod 7, so that the upper end of the lever 5 is driven to move leftwards, the lower end of the lever 5 moves rightwards, the lower end of the lever 5 does not apply pulling force to a brake cable of a trailer, and the trailer is not locked.

As a preferred embodiment of the present utility model, the hand brake system 6 further includes a pawl 11, a push rod 12, a button 13, and a return spring 14. The upper edge on the fixed disk 3 is provided with gear teeth 15 which are arranged in an arc shape, a slide way is arranged in the hand brake rod 9, the push rod 12 is arranged in the slide way of the hand brake rod 9, and a button 13 connected with the upper end of the push rod 12 is arranged at a port of the upper end of the slide way of the hand brake rod 9. A pawl 11 is arranged between the lower end port of the slide way of the hand brake rod 9 and the fixed disc 3, the middle part of the pawl 11 is arranged on the hand brake rod 9 through a rivet, so that the pawl 11 can rotate relative to the hand brake rod 9, the right end of the pawl 11 is riveted with the lower end of the push rod 12, and the left end of the pawl 11 is meshed with gear teeth 15 on the fixed disc 3.

The slide way of the hand brake lever 9 is internally provided with a protruding part 19 connected with the inner side wall of the hand brake lever 9, the protruding part 19 is of an annular structure, the center position of the protruding part 19 is provided with a through hole for the push rod 12 to pass through, the return spring 14 is sleeved on the push rod 12, one end of the return spring 14 is connected with the button 13, the other end of the return spring 14 is connected with the protruding part 19 arranged on the inner side wall of the hand brake lever 9, the return spring 14 applies thrust to the button 13 to drive the push rod 12 to apply tension to the right end of the pawl 11, and the left end of the pawl 11 is meshed with the gear teeth 15 on the fixed disc 3

When the push button 13 is pressed to push the push rod 12, the lower end of the push rod 12 pushes the pawl 11 seat to move clockwise, so that the left end of the pawl 11 is separated from the gear teeth 15, the hand brake lever 9 is rotated anticlockwise, the hand brake lever 9 is reset, and the hand brake action is withdrawn.

As a preferred embodiment of the present utility model, the hand brake system 6 further includes a second gas spring 16 and a unhooking safety rope 17.

The lower extreme of manual brake pole 9 is connected with unhook safety rope 17, the other end of unhook safety rope 17 is connected with the traction vehicle head.

The second gas spring 16 is arranged in the slideway of the hand brake rod 9, one end of the second gas spring 16 is connected with the hand brake rod 9, the riveting position is positioned at the position of the upper end port of the slideway of the hand brake rod 9, and the other end of the second gas spring 16 is riveted with the fixed disc 3. Through the arrangement of the second air spring 16, when the traction head and the trailer are separated from the traction head in the walking process, the trailer is decelerated at the moment, and the traction head pulls the unhooking safety rope 17, so that the hand brake rod 9 rotates clockwise, and the hand brake rod 9 is pulled up. Simultaneously, under the action of the force and the trend, the second gas spring 16 is rapidly triggered, and the second gas spring 16 opens by virtue of the force so as to push up and pull up the hand brake rod 9, thereby completing the hand brake action.

As a preferred technical scheme of the utility model, the utility model further comprises a dust cover 18, the dust cover 18 is sleeved on the first gas spring 2, and the dust cover 18 is positioned between the outer shell 1 and the ball fixing mechanism 4 and is used for preventing rainwater dust and the like, protecting the internal structure from contacting with rainwater and dust and preventing erosion.

While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The trailer brake is characterized by comprising an outer shell (1), a first gas spring (2), a fixed disc (3) and a lever (5);

the fixed disk (3) is arranged in the outer shell (1) and is positioned at the right end of the outer shell (1), an opening is formed in the left end of the outer shell (1), a piston rod of the first gas spring (2) penetrates through the opening in the left end of the outer shell (1) to be connected with the fixed disk (3), the middle part of the lever (5) is connected with the lower part of the fixed disk (3) through a rivet, a through hole is formed in the lower end of the lever (5), and the upper part of the lever (5) is positioned on the right side of a cylinder barrel of the first gas spring (2).

2. A trailer brake as claimed in claim 1, further comprising a hand brake system (6) for driving the lever (5) to rotate, said hand brake system (6) comprising a first link (7), a second link (8) and a hand brake lever (9), the lower part of said hand brake lever (9) being located in the outer housing (1) and the lower part of the hand brake lever (9) being connected to the outer housing (1) by means of rivets; one end of the first connecting rod (7) is riveted with the upper end of the lever (5), and the other end of the first connecting rod (7) is riveted with the second connecting rod (8);

the fixing disc (3) is provided with an arc slot (10) used for being connected with the second connecting rod (8), a fixing rivet (20) is arranged in the arc slot (10), and the part of the fixing rivet (20) outside the arc slot (10) penetrates through the second connecting rod (8) and the hand brake rod (9) to rivet the second connecting rod (8) and the hand brake rod (9).

3. A trailer brake as claimed in claim 2, characterized in that the hand brake system (6) further comprises a pawl (11), a push rod (12), a push button (13), a return spring (14);

the upper edge of the fixed disc (3) is provided with gear teeth (15) which are arranged in an arc shape, a slide way is arranged in the hand brake rod (9), the push rod (12) is arranged in the slide way of the hand brake rod (9), and a button (13) connected with the upper end of the push rod (12) is arranged at a port of the upper end of the slide way of the hand brake rod (9); a pawl (11) is arranged between the lower end port of the slideway of the hand brake rod (9) and the fixed disc (3), the middle part of the pawl (11) is arranged on the hand brake rod (9) through a rivet, the right end of the pawl (11) is riveted with the lower end of the push rod (12), the left end of the pawl (11) is meshed with gear teeth (15) on the fixed disc (3),

the sliding way of the hand brake rod (9) is internally provided with a protruding part (19) connected with the inner side wall of the hand brake rod (9), the reset spring (14) is sleeved on the push rod (12), one end of the reset spring (14) is connected with the button (13), the other end of the reset spring is connected with the protruding part (19) arranged on the inner side wall of the hand brake rod (9), the reset spring (14) applies pushing force to the button (13) to drive the push rod (12) to apply pulling force to the right end of the pawl (11), and the left end of the pawl (11) is meshed with the gear teeth (15) on the fixed disc (3).

4. A trailer brake as claimed in claim 3, characterized in that the hand brake system (6) further comprises a second gas spring (16), a unhooking safety line (17); the lower end of the hand brake rod (9) is connected with a unhooking safety rope (17), and the other end of the unhooking safety rope (17) is connected with a traction locomotive; the second gas spring (16) is arranged in the slideway of the hand brake rod (9), one end of the second gas spring (16) is connected with the hand brake rod (9) and the riveting position is located at the position of the upper end port of the slideway of the hand brake rod (9), and the other end of the second gas spring (16) is riveted with the fixed disc (3).

5. The trailer brake as claimed in claim 1, further comprising a dust cover (18), wherein the dust cover (18) is sleeved on the first gas spring (2), the dust cover (18) is located between the outer shell (1) and the ball fixing mechanism (4), and the ball fixing mechanism (4) is arranged at the left end of the cylinder barrel of the first gas spring (2).