CN219257339U

CN219257339U - Height-adjustable pull rod handrail

Info

Publication number: CN219257339U
Application number: CN202320842473.0U
Authority: CN
Inventors: 刘纭瑕; 王乾; 王瑞超; 孟永祺; 高航; 谢梦平; 于杨; 张馨雨; 刘舒
Original assignee: Shandong Polytechnic
Current assignee: Shandong Polytechnic
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-06-27
Anticipated expiration: 2033-04-17

Abstract

The utility model belongs to the technical field of pull rod armrests, and in particular relates to a height-adjustable pull rod armrests which are fixedly arranged on subway vertical rods, and comprise two opposite outer layer pipes, wherein a middle layer pipe in sliding fit is arranged in each outer layer pipe, an inner layer pipe in sliding fit is arranged in each middle layer pipe, a plurality of positioning holes are formed in each middle layer pipe, a plurality of second positioning holes are formed in each outer layer pipe, and a positioning groove is formed in one end, far away from each middle layer pipe, of each outer layer pipe; be equipped with sliding fit structure in the inlayer pipe, be equipped with second sliding fit structure in the inlayer pipe, be equipped with the horizontal pole in the inlayer pipe, be equipped with the elastic component between horizontal pole and the inlayer pipe inner wall, the horizontal pole both ends are connected with the transfer pole respectively, and the transfer pole offsets with sliding fit structure and leans on, is connected with the press piece on the horizontal pole, and outside the press piece stretched out the inlayer pipe, set up in the relative one side of elastic component. The height-adjustable pull rod handrail can realize the height adjustment of the pull rod handrail so as to adapt to the requirements of different people.

Description

Height-adjustable pull rod handrail

Technical Field

The utility model relates to a pull rod handrail, in particular to a pull rod handrail with adjustable height.

Background

The subway is a common mass transportation means nowadays, with the development of urban and motorized, urban population and regions are continuously increased, and the demand for the subway is correspondingly and rapidly increased, so that the subway is often fully occupied. The subway is fully crowded with people, the subway is rubbed with shoulders, feet are not sticky, one handrail can only be used for a passenger to grasp, and when a train starts or stops, the passenger has great potential safety hazard under the action of inertia. Especially, the installation height of the existing handrail is fixed, so that all people can grasp the handrail in a more comfortable gesture, and passengers can not make effective response more conveniently when facing inertial impact.

Disclosure of Invention

The utility model aims to provide a height-adjustable pull rod handrail which is suitable for demands of different people.

In order to achieve the above purpose, the utility model provides a height-adjustable pull rod handrail which is fixedly arranged on a subway upright rod and comprises two opposite outer layer pipes, wherein a middle layer pipe which is in sliding fit with the outer layer pipes is arranged in the outer layer pipes, an inner layer pipe which is in sliding fit with the middle layer pipe is arranged in the middle layer pipe, a plurality of positioning holes are formed in the middle layer pipe, a plurality of second positioning holes are formed in the outer layer pipe, and a positioning groove is formed in one end, far away from the middle layer pipe, of the outer layer pipe;

the inner layer pipe is characterized in that one end, close to the middle layer pipe, of the inner layer pipe is provided with a sliding fit structure, one end, close to the outer layer pipe, of the middle layer pipe is provided with a second sliding fit structure, a cross rod is arranged in the inner layer pipe, an elastic piece is arranged between the cross rod and the inner wall of the inner layer pipe, two ends of the cross rod are respectively connected with a transfer rod, the transfer rods are abutted against the sliding fit structure, the cross rod is connected with a pressing block, and the pressing block stretches out of the inner layer pipe and is arranged on one side, opposite to the elastic piece, of the inner layer pipe.

According to one aspect of the utility model, the sliding fit structure comprises a fixed block, wherein a cavity is formed in the fixed block, a sliding block is arranged in the cavity, an inclined sliding groove is formed in the sliding block, a second elastic piece is arranged between the sliding block and the inner wall of the fixed block, a cylindrical pin is fixedly connected to one side, opposite to the second elastic piece, of the sliding block, and the cylindrical pin extends out of the inner layer pipe;

the inclined chute is matched with a vertical push rod, and the vertical push rod is connected with a transverse push plate.

According to one aspect of the utility model, the tail end of the transfer rod is connected with a foot rest.

According to one aspect of the utility model, the second sliding fit structure comprises a second fixed block, wherein a cavity is formed in the second fixed block, a second sliding block is arranged in the cavity, the second sliding block is provided with a cavity, a sliding plate is arranged in the cavity, the sliding plate is connected with a positioning pin, the positioning pin extends out of the second fixed block, and a third elastic piece is sleeved on the periphery of the positioning pin;

a fourth elastic piece is arranged between the sliding plate and the inner wall of the second sliding block;

the second sliding block is provided with a second cylindrical pin, and the second cylindrical pin extends out of the middle layer pipe.

According to one aspect of the utility model, a second inclined sliding groove is further formed in the second sliding block, a second vertical push rod is matched with the second inclined sliding groove, and the second vertical push rod is connected with a second transverse push plate.

According to one aspect of the utility model, the locating pin is a square pin.

According to the height-adjustable pull rod handrail disclosed by the utility model, the pressing block is pressed down to drive the cross rod to rise to compress the elastic piece, the cross rod rises to drive the switching rod and the support frame to rise, so that acting force is applied to the transverse push plate and the vertical push rod, and the second elastic piece is compressed due to the arrangement of the inclined sliding groove, so that the cylindrical pin is retracted. The inner layer pipe continues to ascend, acting force is applied to the second transverse pushing plate, and the third elastic piece is compressed to enable the second cylindrical pin to be retracted. When the middle layer pipe continues to rise and reaches the uppermost part, the second cylindrical pin is in a contracted state, and the positioning pin is in an extending state and is positioned in the positioning groove. The whole process can present different heights with cylindric lock and locating hole cooperation or the cooperation of second cylindric lock and second locating hole as required to adapt to different crowd needs.

Drawings

FIG. 1 schematically illustrates a block diagram of an adjustable height tie bar armrest according to one embodiment of the present utility model;

fig. 2 schematically shows a cross-sectional view of a second slider according to an embodiment of the present utility model.

The reference numerals in the drawings represent the following meanings:

1. an outer layer tube; 2. a middle layer tube; 3. an inner layer tube; 2a, positioning holes; 11. a second positioning hole; 12. a positioning groove; 31. a sliding fit structure; 21. a second sliding fit structure; 32. a cross bar; 33. an elastic member; 34. a transfer rod; 35. pressing the blocks; 311. a fixed block; 312. a sliding block; 313. an inclined chute; 314. a second elastic member; 315. a cylindrical pin; 316. a vertical push rod; 317. a transverse push plate; 341. a foot rest; 211. a second fixed block; 212. a second slider; 213. a slide plate; 214. a positioning pin; 215. a third elastic member; 216. a fourth elastic member; 217. a second cylindrical pin; 2121. the second inclined chute; 2122. a second vertical pushrod; 2123. a second transverse pushing plate.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

The present utility model will be described in detail below with reference to the drawings and the specific embodiments, which are not described in detail herein, but the embodiments of the present utility model are not limited to the following embodiments.

Referring to fig. 1 and 2, the utility model provides a height-adjustable pull rod handrail, which is applied to a subway, in particular to a subway carriage provided with a stand column.

As shown in fig. 1, according to an embodiment of the present utility model, the height-adjustable tie rod handrail of the present utility model includes two opposite outer layers 1, and the two outer layers 1 are respectively fixed to two uprights. The middle layer pipe 2 which is in sliding fit with the outer layer pipe 1 is arranged in the outer layer pipe 1, the inner layer pipe 3 which is in sliding fit with the middle layer pipe 2 is arranged in the middle layer pipe 2, a sliding fit structure 31 is arranged at one end, close to the middle layer pipe 2, of the inner layer pipe 3, and a second sliding fit structure 21 is arranged at one end, close to the outer layer pipe 1, of the middle layer pipe 2. The middle layer pipe 2 is provided with a plurality of positioning holes 2a which can be matched with the sliding fit structure 31 to realize the positioning of the sliding fit structure 31. The outer layer pipe 1 is provided with a plurality of second positioning holes 11, and one end of the outer layer pipe 1, which is far away from the middle layer pipe 2, is also provided with a positioning groove 12. The second locating hole 11 realizes the location and height adjustment of the second sliding fit structure 21, and the locating groove 12 realizes the location of the middle layer pipe 2, and fixes the middle layer pipe at the bottom of the outer layer pipe 1.

As shown in fig. 1, the inner tube 3 of the present utility model is provided with a cross bar 32, and an elastic member 33 is provided between the cross bar 32 and the inner wall of the inner tube 3, and in this embodiment, the elastic member 33 is provided as a spring. The two ends of the cross bar 32 are respectively connected with an adapter rod 34, and the adapter rods 34 are propped against the sliding fit structure 31. The cross bar 32 is connected with a pressing block 35, and the pressing block 35 extends out of the inner layer tube 3 and is arranged on the opposite side of the elastic piece 33. The cross bar 32 can be lifted up by pressing the pressing block 35, and the switching rod 34 is driven to lift up.

As shown in fig. 1, according to one aspect of the present utility model, the sliding fit structure 31 includes a fixed block 311, a cavity is formed in the fixed block 311, a sliding block 312 is disposed in the cavity, an oblique sliding groove 313 is disposed on the sliding block 312, a second elastic member 314 is disposed between the sliding block 312 and an inner wall of the fixed block 311, a cylindrical pin 315 is fixedly connected to a side of the sliding block 312 opposite to the second elastic member 314, and the cylindrical pin 315 extends out of the inner layer pipe 3; the inclined chute 313 is matched with a vertical push rod 316, and the vertical push rod 316 is connected with a transverse push plate 317.

In the present embodiment, the leg frame 341 is connected to the end of the adapter rod 34. This arrangement can promote stability of the driving slip fit structure 31.

As shown in fig. 1 and 2, the second sliding fit structure 21 of the present utility model includes a second fixing block 211, a cavity is formed inside the second fixing block 211, a second sliding block 212 is disposed in the cavity, the second sliding block 212 has a cavity, a sliding plate 213 is disposed in the cavity, and the sliding plate 213 is connected with a positioning pin 214, and in this embodiment, the positioning pin 214 is configured as a square pin. The positioning pin 214 is arranged to extend out of the second fixing block 211, and a third elastic piece 215 is sleeved on the periphery of the positioning pin 214. And a fourth elastic member 216 is provided between the sliding plate 213 and the inner wall of the second slider 212. The second slide block 212 is provided with a second cylindrical pin 217, and the second cylindrical pin 217 protrudes out of the middle layer pipe 2. The second sliding block 212 is further provided with a second inclined sliding groove 2121, a second vertical push rod 2122 is matched with the second inclined sliding groove 2121, and the second vertical push rod 2122 is connected with a second transverse push plate 2123.

The height adjusting method of the height-adjustable pull rod comprises the following steps:

pressing the pressing block 35 drives the cross rod 32 to rise, compresses the elastic piece 33, and the cross rod 32 rises to drive the switching rod 34 and the supporting leg frame 341 to rise, so that acting force is applied to the transverse push plate 317 and the vertical push rod 316, and the second elastic piece 314 is compressed due to the arrangement of the inclined sliding groove 313, so that the cylindrical pin 315 is retracted. The inner tube 3 continues to rise, exerting a force on the second transverse push plate 2123, compressing the third resilient member 215 causing the second cylindrical pin 217 to retract. When the middle tube 2 continues to rise and reaches the uppermost position, the second cylindrical pin 217 is retracted, and the positioning pin 214 is extended and positioned in the positioning groove 12.

The cylindrical pin 315 and the positioning hole 2a or the second cylindrical pin 217 and the second positioning hole 11 can be matched with each other to present different heights according to the needs of different people.

When the pull rod falls down, the pull rod is inverted during the rising process. Pressing the pressing block 35, the cylindrical pin 315 of the inner tube 3 is firstly retracted into the tube, then the middle tube 2 is lifted, the mechanism at the bottom of the middle tube 2 loses pressure, the fourth elastic piece 216 is compressed inwards under the action of the third elastic piece 215, and the positioning pin 214 is retracted inwards. When the inner layer pipe 3 clamps the middle layer pipe 2, the middle layer pipe 2 is driven to fall together until the middle layer pipe 2 clamps the outer layer pipe 1, and then falls down again, and the hole position on the middle layer pipe 2 is relied on.

The above description is only one embodiment of the present utility model and is not intended to limit the present utility model, and various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an adjustable height pull rod handrail, fixed mounting is in subway pole setting, its characterized in that includes two outer pipe (1) of relative setting, be equipped with in outer pipe (1) with outer pipe (1) sliding fit's middle layer pipe (2), be equipped with in middle layer pipe (2) with middle layer pipe (2) sliding fit's inlayer pipe (3), be equipped with a plurality of locating holes (2 a) on middle layer pipe (2), be equipped with a plurality of second locating holes (11) on outer pipe (1), outer pipe (1) keep away from one end of middle layer pipe (2) still is equipped with constant head tank (12);

the utility model discloses a water heater, including inlayer pipe (3), middle level pipe (2) and outer pipe (3) are equipped with sliding fit structure (31), be close to in inlayer pipe (2) the one end of outer pipe (1) is equipped with second sliding fit structure (21), be equipped with horizontal pole (32) in inlayer pipe (3), horizontal pole (32) with be equipped with elastic component (33) between inlayer pipe (3) inner wall, horizontal pole (32) both ends are connected with transfer pole (34) respectively, transfer pole (34) with sliding fit structure (31) are offseted, be connected with on horizontal pole (32) and press down piece (35), press down piece (35) and stretch out outside inlayer pipe (3) set up one side that elastic component (33) are relative.

2. The pull rod handrail with adjustable height according to claim 1, wherein the sliding fit structure (31) comprises a fixed block (311), a cavity is formed in the fixed block (311), a sliding block (312) is arranged in the cavity, an inclined sliding groove (313) is formed in the sliding block (312), a second elastic piece (314) is arranged between the sliding block (312) and the inner wall of the fixed block (311), a cylindrical pin (315) is fixedly connected to one side, opposite to the second elastic piece (314), of the sliding block (312), and the cylindrical pin (315) extends out of the inner layer tube (3);

the inclined chute (313) is matched with a vertical push rod (316), and the vertical push rod (316) is connected with a transverse push plate (317).

3. The height-adjustable pull rod handrail according to claim 2, wherein the end of the adapter rod (34) is connected with a leg frame (341).

4. A height-adjustable pull rod handrail according to claim 3, characterized in that the second sliding fit structure (21) comprises a second fixed block (211), a cavity is formed in the second fixed block (211), a second sliding block (212) is arranged in the cavity, the second sliding block (212) is provided with a cavity, a sliding plate (213) is arranged in the cavity, the sliding plate (213) is connected with a positioning pin (214), the positioning pin (214) extends out of the second fixed block (211), and a third elastic piece (215) is sleeved on the periphery of the positioning pin (214);

a fourth elastic piece (216) is arranged between the sliding plate (213) and the inner wall of the second sliding block (212);

the second sliding block (212) is provided with a second cylindrical pin (217), and the second cylindrical pin (217) extends out of the middle layer pipe (2).

5. The pull rod handrail with adjustable height according to claim 4, wherein a second oblique sliding groove (2121) is further formed in the second sliding block (212), a second vertical push rod (2122) is matched on the second oblique sliding groove (2121), and a second transverse push plate (2123) is connected to the second vertical push rod (2122).

6. The adjustable height tie bar armrest as recited in claim 4, wherein the dowel pin (214) is a square head pin.