CN111391737A

CN111391737A - Safety buffering bus handle

Info

Publication number: CN111391737A
Application number: CN201910866749.7A
Authority: CN
Inventors: 曹金亮; 吴晓华; 李竟成
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-10
Anticipated expiration: 2039-09-12
Also published as: CN111391737B

Abstract

The invention discloses a safe buffering bus handle which comprises a handle body, wherein a limiting sleeve with a shaft joint is sleeved on the handle body, a spring is arranged in the handle body and can buffer the movement of a clamping cylinder, and a moving handle block is used for controlling the clamping cylinder. The invention has the following beneficial effects: (1) protecting the arms from being pulled; (2) the automatic reset can be realized; (3) the holding feeling is comfortable.

Description

Safety buffering bus handle

Technical Field

The invention relates to a bus handle, in particular to a safe buffer bus handle.

Background

Present bus handle is mostly fixed on the horizontal pole of bus, and when bus emergency braking, passenger's health has very big inertia forward motion, can drag the arm this moment, easily causes the damage to the arm. And China walks into an aging society, more and more old people are provided, most of the traveling modes of the old people are buses, the bodies of the old people are very fragile, and the arms and the bodies form angles which are easy to hurt the arms when the vehicles are braked emergently, so that the arms are easy to hurt when the vehicles take the buses.

For example, a "telescopic bus handle" disclosed in chinese patent literature, publication No. CN104385959A includes a body, a telescopic member, and a locking member, where the locking member includes a locking button and a locking link, the telescopic member includes a winding drum, one end of the winding drum is provided with a tooth socket, one end of the locking link is provided with a protrusion matching with the tooth socket, the body is provided with an inner cavity, the inner wall of the inner cavity is provided with a fulcrum shaft, the locking link is provided with a fulcrum opening, and the fulcrum shaft is inserted into the fulcrum opening.

The handle of this patent still fixes on the horizontal pole at the bus, can drag passenger's arm when bus emergency braking, and at this moment, easily cause the damage to the arm.

Disclosure of Invention

The invention provides a safe buffering bus handle, aiming at overcoming the problem that the bus handle in the prior art can pull the arms when the bus is braked emergently.

In order to achieve the purpose, the invention adopts the following technical scheme:

a safety buffer bus handle comprises a handle body, wherein the handle body is sleeved on a cross rod, the lower part of the handle body is a handle part, the handle body is provided with an inner cavity, the handle body is of a bilateral symmetry structure, and a limiting sleeve with a shaft joint is arranged outside the cross rod; a clamping cylinder for clamping the limiting sleeve is arranged in the handle body; the handle body is internally provided with a spring for buffering the motion of the clamping barrel and a movable grip block for controlling the clamping barrel. The handle body is divided into an upper part and a lower part, the left part and the right part are of symmetrical structures, the handle body is provided with an inner cavity, the upper half part is a clamping cylinder and other parts, and the lower half part is a handle frame part. In order to match with the clamping principle of the handle body, a limiting sleeve with a shaft joint is sleeved outside the cross rod, and the surfaces of the shaft joint and the cross rod are in smooth transition to form an inclined plane. The upper clamping barrel and the lower clamping barrel in the handle body can clamp the cross rod and the limiting sleeve, and a spring is arranged behind the clamping barrels and connected to the inner wall of the inner cavity, so that the buffering and resetting capabilities can be provided. The clamping cylinder rolls on the inclined plane of the limiting sleeve, the surface of the limiting sleeve is provided with a peak land and a valley land, and the clamping cylinder is provided with a spring and the force of a hand tends to move to the valley land, so that the positioning of the handle body is realized. The movable grip block can drive the clamping barrel to move up and down, the elastic force of the spring can influence the movement, and the hand feeling of the grip can be improved. And the maximum spreading distance of the clamping cylinder is limited, and the maximum spreading distance of the clamping cylinder is smaller than the diameter of the shaft joint of the limiting sleeve, so that the handle body can only move in one section of shaft joint.

Preferably, four clamping cylinders are arranged in the handle body, the upper two clamping cylinders are fixedly connected with a first sliding block, and the lower two clamping cylinders are fixedly connected with a second sliding block; the lower part of the second sliding block extends out of a section of volume, and the side surface of the second sliding block and the surface of the section of volume are provided with straight teeth. The top sets up two and presss from both sides a section of thick bamboo, because the left and right sides is symmetrical structure, so two of top and below press from both sides a section of thick bamboo and respectively be located same water flat line, press from both sides a section of thick bamboo and remove the back elasticity that can receive the spring, can help pressing from both sides a section of thick bamboo and reset to the millet bottom position of stop collar. And the up-and-down movement of the clamping cylinder is realized by the sliding block. The second sliding block needs to move upwards when the clamping barrel needs to be clamped, and the straight teeth are used for changing the direction of the force applied by the moving grip block and converting downward displacement into upward displacement through the gear and the rack.

Preferably, the two sides of the movable grip block are fixedly connected with a linkage rod, the other end of the linkage rod is fixedly connected with the first sliding block, and the side surface of the linkage rod is provided with a rack. The linkage rod is connected with the movable grip block and the first sliding block, and the first sliding block moves downwards when the movable grip block moves downwards. The rack on the side of the linkage rod can move downwards along with the linkage rod, and the movement direction is reversed by utilizing the gear on one side, so that the second sliding block and the lower clamping barrel move upwards.

Preferably, the inner cavity of the handle body is provided with a fixing block for fixing the position of the spring. The fixed block is located handle body inner chamber intermediate position, and the rigid coupling is on the inner chamber lateral wall, wherein through the guide arm, the termination in the fixed block of the spring in the middle of the inner chamber. Therefore, the two ends of each spring are connected to the fixed end, and the dislocation problem cannot be caused. The structure is used for ensuring that the movement of each sliding block does not influence each other and can return to the same horizontal line when resetting.

Preferably, the inner cavity of the handle body is provided with a guide rod for positioning the spring, the guide rod vertically penetrates through the fixing block and is fixedly connected to the inner wall of the inner cavity of the handle body, and the first sliding block and the second sliding block are connected to the guide rod in a sliding mode. The guide rod provides the guide effect for the spring, prevents that the spring from bouncing to other positions, also provides gliding route for the slider, makes the accurate up-and-down motion of slider ability.

Preferably, a fixed point gear is fixedly connected to the inner cavity wall of the handle body, one side of the fixed point gear is meshed with the straight teeth of the second sliding block, and the other side of the fixed point gear is meshed with the rack. The fixed point gear can not move, and only provides a reverse action for the movement of the linkage rod, so that the second sliding block can move upwards.

Preferably, the shaft coupling on the position limiting sleeve is in smooth transition with the surface of the position limiting sleeve. The upper edge and the lower edge of the section of the limiting sleeve are wavy to form an inclined plane. The preset positions of the clamping cylinder are that the transverse rod and the limiting sleeve are clamped, so that when no one holds the handle, the handle body can move to the valley position of the limiting sleeve due to the spring. When the handle is held by a hand, the clamping cross rod of the clamping cylinder provides larger resistance, so that the position of the handle body is stabilized after the handle body moves for a certain distance. The diameter of the peak position of the limiting sleeve is larger than the limit distance of the clamping barrel, so that the handle body can only move in one section of shaft joint and cannot cross the peak position.

Preferably, the lower half part of the handle body is a grip holder, and a guide rail for moving the grip block to slide up and down is arranged in the grip holder; the top of the movable grip block is provided with a notch for the grip, and the edge of the notch is smooth. The movable grip block can move up and down along a guide rail in the grip frame, and then the linkage rod drives the sliding block to move, so that the original driving force is provided. The movable grip block is used for holding, the number of the notches is four, the width of the fingers of a human body is met, and the comfort of the grip can be improved.

Therefore, the invention has the following beneficial effects: (1) protecting the arms from being pulled; (2) the automatic reset can be realized; (3) the holding feeling is comfortable.

Drawings

Fig. 1 is a schematic view of the general structure of the present invention.

Fig. 2 is a schematic structural view of the handle body of the present invention.

Fig. 3 is a schematic view of the cartridge portion of the present invention.

1-cross bar, 2-handle body, 3-limit sleeve, 4-handle frame, 5-movable handle block, 6-linkage bar, 7-clamping cylinder, 8-spring, 9-fixed point gear, 10-first slide block, 11-rack, 12-fixed block, 13-second slide block and 14-guide bar.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.

Example (b):

in the embodiment shown in fig. 1 to 3, a safety buffer bus handle comprises a handle body 2 divided into an upper part and a lower part, the left part and the right part are symmetrical structures, the handle body 2 is provided with an inner cavity, the upper part is a clamping cylinder 7 and other parts, and the lower part is a handle holder 4. In order to match the clamping principle of the handle body 2, a limiting sleeve 3 with a shaft joint is sleeved outside the cross rod 1, and the surfaces of the shaft joint and the cross rod 1 are in smooth transition to form an inclined plane. The upper clamping cylinder 7 and the lower clamping cylinder 7 in the handle body 2 can clamp the cross rod 1 and the limiting sleeve 3, and a spring 8 is arranged behind the clamping cylinder 7 and connected to the inner wall of the inner cavity, so that the buffering and resetting capabilities can be provided. Two clamping cylinders 7 are arranged above the limiting sleeve 3, and are of symmetrical structures left and right, so that the two clamping cylinders 7 above and below are respectively positioned on the same horizontal line, and the clamping cylinders 7 can receive the restoring elasticity of the springs 8 after moving, so that the clamping cylinders 7 can be helped to reset to the valley bottom positions of the limiting sleeve 3. While the cartridge 7 is slid by means of the slider in its up-and-down movement. The second slider 13 needs to move upwards when the clamping of the clamping barrel 7 is needed, and straight teeth are used for changing the direction of the force applied to move the grip block 5, so that the downward displacement is converted into the upward displacement through the gear and the rack 11. The clamping cylinder 7 rolls on the inclined surface of the limiting sleeve 3, the surface of the limiting sleeve 3 has a peak ground and a valley ground, the clamping cylinder 7 has a spring 8, and the force of the hand tends to move to the valley ground, so that the positioning of the handle body 2 is realized. The preset positions of the clamping cylinder 7 are used for clamping the cross rod 1 and the limiting sleeve 3, so that the handle body 2 can move to the valley position of the limiting sleeve 3 due to the spring 8 when no person holds the handle. When the handle is held by a hand, the clamping cylinder 7 clamps the cross rod 1 to provide larger resistance, so that the position of the handle body 2 is stabilized after the handle body moves for a certain distance. The diameter of the peak position of the limiting sleeve 3 is larger than the limit distance of the clamping barrel 7, so that the handle body 2 can only move in one section of shaft joint and cannot cross the peak position. The movable grip block 5 can drive the clamping cylinder 7 to move up and down, and the movement is influenced by the elasticity of the spring 8, so that the hand feeling of the grip is improved. And the maximum expanding distance of the clamping cylinder 7 is limited, and the maximum expanding distance of the clamping cylinder 7 is smaller than the diameter of the shaft joint of the limiting sleeve 3, so that the handle body 2 can only move in one section of shaft joint. The linkage rod 6 is connected with the movable grip block 5 and the first slide block 10, and the first slide block 10 moves downwards when the movable grip block 5 moves downwards. The rack 11 on the side of the linkage rod 6 moves downwards along with the linkage rod 6, and the movement direction is reversed by using a gear on one side, so that the second sliding block 13 and the lower clamping cylinder 7 move upwards. The fixed block 12 is located in the middle of the inner cavity of the handle body 2 and is fixedly connected to the side wall of the inner cavity, wherein one end of the spring 8 in the middle of the inner cavity is connected to the fixed block 12 through the guide rod 14. Thus, the two ends of each spring 8 are connected to the fixed end, and the problem of dislocation is avoided. The structure is used for ensuring that the movement of each sliding block does not influence each other and can return to the same horizontal line when resetting. The guide rod 14 provides a guiding function for the spring 8, prevents the spring 8 from bouncing to other positions, and also provides a sliding path for the sliding block, so that the sliding block can accurately move up and down. The fixed point gear 9 will not move, and only provides the reverse action for the movement of the linkage rod 6, so that the second sliding block 13 can move upwards. The movable grip block 5 can move up and down along a guide rail in the grip holder 4, and then the linkage rod 6 drives the slide block to move, so that the original driving force is provided. The movable grip block 5 is used for holding, and the four gaps are in accordance with the width of fingers of a human body, so that the comfort of the grip can be improved.

The working principle is as follows:

when no one holds the handle, the handle body 2 is positioned at the valley position of the limiting sleeve 3, and the handle body 2 cannot move left and right randomly due to the elastic force of the spring 8. After a person holds the handle, the clamping cylinder 7 is clamped more tightly, and the handle is displaced too far when the bus runs normally. When the vehicle emergency braking, the huge inertia of the human body makes the handle body 2 displace together, and the force of the spring 8 and the hand is not enough to fix the handle body 2, so that the handle body 2 can realize the buffering effect. Therefore, the arm and the body can not form an angle which is easy to be hurt by pulling, and the arm can be protected. After the handle body 2 is loosened, the handle body 2 is reset to the valley position of the limiting sleeve 3 under the elastic force action of the spring 8.

Claims

1. A safe buffering bus handle comprises a handle body (2) sleeved on a cross rod (1), the lower part of the handle body (2) is a handle part, and an inner cavity is arranged in the handle body (2), and is characterized in that the handle body (2) is of a bilateral symmetry structure, and a limiting sleeve (3) with a shaft joint is arranged outside the cross rod (1); a clamping cylinder (7) for clamping the limiting sleeve (3) is arranged in the handle body (2); a spring (8) for buffering the movement of the clamping cylinder (7) and a movable grip block (5) for controlling the clamping cylinder (7) are arranged in the handle body (2).

2. The bus handle with the safety buffer function as claimed in claim 1, wherein four clamping cylinders (7) are arranged in the handle body (2), the upper two clamping cylinders (7) are fixedly connected with a first sliding block (10), and the lower two clamping cylinders (7) are fixedly connected with a second sliding block (13); the lower part of the second sliding block (13) extends out of a section of volume, and the side surface of the second sliding block (13) and the surface of the section of volume are provided with straight teeth.

3. The bus handle with the safety buffer as claimed in claim 1, wherein the moving handle block (5) is fixedly connected with a linkage rod (6) at two sides, the other end of the linkage rod (6) is fixedly connected with the first slider (10), and a rack (11) is arranged on the side surface of the linkage rod (6).

4. The bus handle with the safety buffer as claimed in claim 1, wherein the inner cavity of the handle body (2) is provided with a fixing block (12) for fixing the position of the spring (8).

5. The bus handle with the safety buffer as claimed in claim 1, wherein a guide rod (14) for positioning the spring (8) is arranged in the inner cavity of the handle body (2), the guide rod (14) vertically penetrates through the fixing block (12) and is fixedly connected to the inner wall of the inner cavity of the handle body (2), and the first sliding block (10) and the second sliding block (13) are slidably connected to the guide rod (14).

6. The bus handle with the safety buffer function as claimed in claim 1, wherein a fixed point gear (9) is fixedly connected to the inner cavity wall of the handle body (2), one side of the fixed point gear (9) is meshed with a straight tooth of the second sliding block (13), and the other side of the fixed point gear is meshed with a rack (11).

7. The bus handle with the safety buffer as claimed in any one of claims 1 to 6, wherein the shaft joint on the position-limiting sleeve (3) is in smooth transition with the surface of the position-limiting sleeve (3).

8. The bus handle with safety buffer as claimed in any one of claims 1 to 6, wherein the lower half part of the handle body (2) is a handle holder (4), and a guide rail for moving the handle block (5) to slide up and down is arranged in the handle holder (4); the top of the movable grip block (5) is provided with a notch for the grip, and the edge of the notch is smooth.