CN112406660A

CN112406660A - Bus handle with adjustable height

Info

Publication number: CN112406660A
Application number: CN202011333422.2A
Authority: CN
Inventors: 陈良宾; 陆欢欢
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-02-26

Abstract

The invention discloses a height-adjustable bus handle, which comprises a machine body, wherein a first sliding groove is formed in the machine body, the upper side wall and the lower side wall of the first sliding groove are respectively communicated with a second sliding groove, the second sliding groove is used for communicating the first sliding groove with the external space, two sliding blocks are connected in the first sliding groove in a sliding manner in a bilateral symmetry manner, each sliding block is internally provided with a limiting buffer device, the two limiting buffer devices are in central symmetry with respect to the center of the first sliding groove, the comfortable height of a user can be adjusted according to the height of the user, the buffer devices are arranged, when the human body is toppled, part of inertia can be eliminated, a certain effect on preventing the human body from toppling is achieved to a certain extent, and compared with a completely rigid handle, the handle is more durable in use and has a better toppling prevention effect.

Description

Bus handle with adjustable height

Technical Field

The invention belongs to the field of automobiles, and particularly relates to a bus handle with adjustable height.

Background

Along with the rapid development of science and technology, public transport is more and more flourishing, many people choose to take the bus trip, but the handle height of bus is fixed, to the shorter passenger of height, grab the handle and must straighten the arm and just can touch the handle, it is tired very always to hold the arm, can only go to the armchair back, it is very inconvenient, driver emergency braking leads to the passenger to fall down very easily, present handle is mostly flexible material simultaneously, though grab the handle during emergency braking, nevertheless because the handle is flexible, the health still can topple over forward because of inertia, therefore, need to wait to design a height and can adjust to can prevent to a certain extent that the human body is because the bus handle that inertia topples over.

Disclosure of Invention

The invention provides a bus handle capable of automatically adjusting the height and preventing a human body from falling down to a certain extent in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a bus handle with adjustable height, includes the organism, set up first spout in the organism, the lateral wall communicates respectively about the first spout and is provided with the second spout, the second spout will first spout and exterior space intercommunication, bilateral symmetry sliding connection has two sliding blocks, every in the first spout be provided with spacing buffer, two in the sliding block spacing buffer about the central centrosymmetry of first spout, upside fixedly connected with limiting plate between the lateral wall around the second spout, the limiting plate is located the middle part of second spout, the limiting plate is located two between the sliding block, be provided with height adjusting device in the limiting plate.

Preferably, the height adjusting device comprises a third chute which is arranged in the limiting plate and provided with an upper opening and a lower opening, a lifting rod is in clearance fit in the third chute, a plurality of first limiting grooves are symmetrically formed in the left side surface and the right side surface of the lifting rod, a first rack is fixedly connected to the left side surface of the lower part of the lifting rod, a second rack is fixedly connected to the right side surface of the upper part of the lifting rod, the lifting rod extends downwards to penetrate through the first chute and the second chute on the lower side to enter the lower space of the machine body, and a first hinge block is fixedly connected to the lower end surface of the lifting rod; as shown in the figure, first articulated piece lower extreme articulates there is the articulated piece of second, the articulated piece lower extreme fixedly connected with dead lever of second, the dead lever downside is provided with the handle, the handle is the U-shaped, both ends about the handle respectively with both ends fixed connection about the downside of dead lever.

Preferably, the height adjusting device further comprises limiting components which are arranged on the left side and the right side of the third sliding groove in a bilateral symmetry manner, taking a left side limiting component as an example, the limiting components comprise a fourth sliding groove arranged on the left side of the third sliding groove, the fourth sliding groove is communicated with the third sliding groove, a first limiting rod is connected in the fourth sliding groove in a sliding manner, a first spring is fixedly connected between the left side surface of the first limiting rod and the left side wall of the fourth sliding groove, the right end of the first limiting rod is clamped in the first limiting groove under the action of the elastic force of the first spring, a guide wheel groove is formed in the left side of the fourth sliding groove, a rotating shaft is fixedly connected between the front side wall and the rear side wall of the guide wheel groove, a reversing wheel is sleeved on the rotating shaft and is rotatably connected with the rotating shaft, and a first pull rope is fixedly connected to the left side surface of the first limiting rod, the first stay cord extends leftwards and runs through the left side wall of the fourth sliding groove and enters the guide wheel groove, the first stay cord is connected with the left side wall of the fourth sliding groove and the right side wall of the guide wheel groove in a sliding mode, the first stay cord is connected with the circumferential surface of the reversing wheel in the guide wheel groove in a sliding mode, the first stay cord turns backwards, the first stay cord extends downwards and runs through the lower side wall of the guide wheel groove and the limiting plate enters the first sliding groove.

Preferably, the height adjusting device further comprises two first mounting rods fixedly connected to the lower ends of the two first pull ropes, two second mounting rods fixedly connected between the upper end surfaces of the two first mounting rods and between the lower end surfaces of the two first mounting rods respectively, a first gear shaft and a second gear shaft fixedly connected between the two second mounting rods, the first gear shaft and the second gear shaft are bilaterally symmetrical with respect to the center line of the second mounting rod, a first gear is sleeved on the first gear shaft, the first gear is rotatably connected with the first gear shaft, a second gear is sleeved on the second gear shaft, the second gear is rotatably connected with the second gear shaft, the first gear is engaged with the first rack, the second gear is engaged with the second rack, and a second spring is fixedly connected to the front side surface of each of the left and right ends of each second mounting rod, and the other end of each second spring is fixedly connected with the lower side surface of the limiting plate.

Preferably, the height adjusting device further comprises two second pull ropes fixedly connected to the lower side surfaces of the two first mounting rods, and the two second pull ropes are bilaterally symmetrical with respect to the lifting rod.

Preferably, the height adjusting device further comprises a guide groove with an upward opening formed in the fixing rod, and two groups of guide assemblies are symmetrically arranged in the guide groove in a left-right mode; taking the guide assembly on the left side as an example, the guide assembly comprises a first guide wheel shaft fixedly connected between the front side wall and the rear side wall of the guide groove, a first guide wheel is sleeved on the first guide wheel shaft and rotatably connected with the first guide wheel shaft, a second guide wheel shaft is fixedly connected between the front side wall and the rear side wall of the guide groove, a second guide wheel is sleeved on the second guide wheel shaft and rotatably connected with the second guide wheel shaft, and the second guide wheel shaft is positioned on the lower right side of the first guide wheel shaft; the center part of the lower side wall of the guide groove is communicated with a round hole, the round hole is communicated with the guide groove and an external space, the second pull rope is guided by the first guide wheel and then extends to the right, and then is guided by the second guide wheel and then extends downwards to penetrate through the round hole to enter the external space, so that the second pull rope is prevented from interfering with other parts to influence the operation of the device; the lower ends of the two second pull ropes are fixedly connected with pull rings for being pulled by fingers when in use, and the shapes of the pull rings are indefinite.

Preferably, taking the right side of the limit buffer device as an example, the limit buffer device further comprises a chute arranged in the sliding block, the chute is arranged obliquely from the upper right to the lower left, a first buffer rod is connected in the chute in a sliding manner, the first buffer rod extends to the upper right to penetrate through the chute and the upper side of the chute and enter the external space through the second chute, the first buffer rod extends to the lower left to penetrate through the chute and the lower side of the chute and enter the external space through the second chute, a plurality of second limit grooves are uniformly formed in one side surface of the first buffer rod close to the first limit groove, a buffer groove with a downward opening is formed in the lower end of the first buffer rod, a second buffer rod is connected in the buffer groove in a sliding manner, a fixing plate is sleeved on the second buffer rod and is connected with the second buffer rod in a sliding manner, and the fixing plate is fixedly connected with the lower end surface of the first buffer rod, the cover is equipped with the buffer board on the second buffer beam, the buffer board with second buffer beam fixed connection, the cover is equipped with the fourth spring on the second buffer beam, the fourth spring is located the fixed plate with between the buffer board, fourth spring one end with buffer board up end fixed connection, the fourth spring other end with terminal surface fixed connection under the fixed plate, side fixedly connected with third hinge block on the dead lever right-hand member, the third hinge block with the lower extreme of second buffer beam is articulated.

Preferably, the limiting and buffering device further comprises a fifth chute with an opening at the left side and arranged in the sliding block, a first connecting rod is connected in the fifth chute in a sliding manner, a baffle is fixedly connected to the lower side wall of the fifth chute, the right side surface of the lower end of the first connecting rod abuts against the baffle when the height is adjusted, a connecting rod groove is formed in the upper side wall of the fifth chute in a communicating manner, a sixth chute is formed in the upper side wall of the connecting rod groove in a communicating manner, a second connecting rod is fixedly connected to the right side surface of the first connecting rod, a rotating shaft is fixedly connected between the front side wall and the rear side wall of the connecting rod groove, a telescopic rod is sleeved on the rotating shaft, the telescopic rod is the prior art and is not repeated, the telescopic rod is rotatably connected with the rotating shaft, the lower end of the telescopic rod is hinged to the right end of the second connecting rod, a moving plate is, the movable plate right flank fixedly connected with third connecting rod, third connecting rod right-hand member face fixedly connected with second gag lever post, the second gag lever post extends the card right and advances in the second spacing groove, the telescopic link upper end with the third connecting rod is articulated.

Preferably, spacing buffer still includes fixed connection and is in the head rod of sliding block left surface, the left end face fixedly connected with third rack of head rod, the meshing tooth of third rack sets up forward, during height-adjusting second gear and the spacing buffer in right side third rack toothing, among first gear and the spacing buffer in left side third rack toothing.

In summary, the invention has the following advantages: this device simple structure has realized that the user can adjust comfortable height according to self height to be equipped with buffer, when the human body is emptyd, can eliminate partly inertia, to a certain extent prevented that the human body from toppling over and played certain effect, and for the handle of complete rigidity, this kind of handle is more resistant to use, and it is better to prevent the tilting effect.

Drawings

FIG. 1 is a diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a left side view of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at B;

FIG. 5 is an enlarged view of a portion of FIG. 1 at C;

FIG. 6 is an enlarged view of a portion of FIG. 1 at D;

fig. 7 is a partial enlarged view at E in fig. 2.

In the figure, a body 20; a second chute 21; a first chute 22; a first buffer rod 23; a second limit groove 24; a slide block 25; a buffer tank 26; a fixing plate 27; a fourth spring 28; a second buffer rod 29; a buffer plate 30; a third hinge block 31; a fixing lever 32; a handle 33; a lift lever 34; a first limit groove 35; a stopper plate 36; a second cord 37; a first hinge block 38; a third rack 39; a first connecting rod 40; a chute 41; a pull ring 42; a circular hole 44; a guide groove 45; a second guide wheel 46; a second guide axle 47; a first guide axle 48; a first guide wheel 49; a second hinge block 50; a guide wheel groove 51; a rotating shaft 53; a reverser wheel 54; a second spring 55; a fourth chute 56; a first spring 57; a first pull cord 58; a first stopper rod 59; a third chute 60; a fifth chute 61; a baffle plate 62; a second connecting rod 63; an extension rod 64; a rotating shaft 65; a third spring 66; a moving plate 68; a third connecting rod 69; a second stopper rod 70; a sixth chute 71; a second mounting bar 72; a first mounting rod 73; a second gear shaft 74; a second gear 75; a second rack 76; a first gear shaft 77; a first gear 78; a first rack 79; a link groove 80;

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 7, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, a bus handle with adjustable height, includes organism 20, first spout 22 has been seted up in organism 20, lateral wall communicates respectively about first spout 22 and is provided with second spout 21, second spout 21 will first spout 22 and exterior space intercommunication, bilateral symmetry sliding connection has two sliding blocks 25 in the first spout 22, every be provided with spacing buffer in the sliding block 25, two spacing buffer about the center of first spout 22 becomes central symmetry, upside fixedly connected with limiting plate 36 between the lateral wall around the second spout 21, limiting plate 36 is located the middle part of second spout 21, limiting plate 36 is located two between the sliding block 25, be provided with height adjusting device in the limiting plate 36.

As shown in fig. 1, the height adjusting device includes a third sliding groove 60 that is provided in the limiting plate 36 and has an upper opening and a lower opening, a lifting rod 34 is fitted in the third sliding groove 60 in a clearance manner, and a plurality of first limiting grooves 35 are symmetrically provided on left and right sides of the lifting rod 34; as shown in fig. 7, a first rack 79 is fixedly connected to a lower left side of the lifting rod 34, and a second rack 76 is fixedly connected to an upper right side of the lifting rod 34; as shown in fig. 1, the lifting rod 34 extends downward to penetrate through the first sliding chute 22 and the second sliding chute 21 at the lower side to enter the lower space of the machine body 20, and a first hinge block 38 is fixedly connected to the lower end surface of the lifting rod 34; as shown in fig. 4, the lower end of the first hinged block 38 is hinged to a second hinged block 50, and the lower end of the second hinged block 50 is fixedly connected with the fixing rod 32; as shown in fig. 1, a handle 33 is disposed at a lower side of the fixing rod 32, the handle 33 is U-shaped, and left and right ends of the handle 33 are fixedly connected to left and right ends of a lower side of the fixing rod 32, respectively.

As shown in fig. 5, the height adjusting device further includes a limiting component disposed on the left side and the right side of the third sliding groove 60 in a bilateral symmetry manner, taking a left limiting component as an example, the limiting component includes a fourth sliding groove 56 disposed on the left side of the third sliding groove 60, the fourth sliding groove 56 is communicated with the third sliding groove 60, a first limiting rod 59 is slidably connected in the fourth sliding groove 56, a first spring 57 is fixedly connected between the left side surface of the first limiting rod 59 and the left side wall of the fourth sliding groove 56, under the elastic force of the first spring 57, the right end of the first limiting rod 59 is clamped in the first limiting groove 35, a guide wheel groove 51 is disposed on the left side of the fourth sliding groove 56, a rotating shaft 53 is fixedly connected between the front side wall and the rear side wall of the guide wheel groove 51, a reversing wheel 54 is sleeved on the rotating shaft 53, and the reversing wheel 54 is rotatably connected with the rotating shaft 53, the left side face of the first limiting rod 59 is fixedly connected with a first pull rope 58, the first pull rope 58 extends leftwards to penetrate through the left side wall of the fourth sliding groove 56 to enter the guide wheel groove 51, the first pull rope 58 is connected with the left side wall of the fourth sliding groove 56 and the right side wall of the guide wheel groove 51 in a sliding mode, the first pull rope 58 is connected with the circumferential face of the reversing wheel 54 in the guide wheel groove 51 in a sliding mode, and after the first pull rope 58 turns backwards, the first pull rope 58 extends downwards to penetrate through the lower side wall of the guide wheel groove 51 and the limiting plate 36 to enter the first sliding groove 22.

As shown in fig. 5, the height adjusting device further includes two first mounting rods 73 fixedly connected to the lower ends of the two first pulling ropes 58; as shown in fig. 7, two second mounting rods 72 are fixedly connected between the upper end surfaces of the two first mounting rods 73 and between the lower end surfaces of the two first mounting rods 73, a first gear shaft 77 and a second gear shaft 74 are fixedly connected between the two second mounting rods 72, the first gear shaft 77 and the second gear shaft 74 are bilaterally symmetrical with respect to the center line of the second mounting rods 72, a first gear 78 is sleeved on the first gear shaft 77, the first gear 78 is rotatably connected with the first gear shaft 77, a second gear 75 is sleeved on the second gear shaft 74, the second gear 75 is rotatably connected with the second gear shaft 74, the first gear 78 is engaged with the first rack 79, the second gear 75 is engaged with the second rack 76, and a second spring 55 is fixedly connected to the front side surface of each of the left end and the right end of each second mounting rod 72, the other end of each second spring 55 is fixedly connected with the lower side surface of the limit plate 36.

As shown in fig. 1, the height adjusting device further includes two second pulling ropes 37 fixedly connected to lower sides of the two first mounting rods 73, and the two second pulling ropes 37 are bilaterally symmetrical with respect to the lifting rod 34.

As shown in fig. 4, the height adjusting device further includes a guide groove 45 provided in the fixing rod 32 and having an upward opening, and two sets of guide assemblies are symmetrically provided in the guide groove 45; taking the left-side guide assembly as an example, the guide assembly includes a first guide wheel shaft 48 fixedly connected between the front and rear side walls of the guide groove 45, a first guide wheel 49 is sleeved on the first guide wheel shaft 48, the first guide wheel 49 is rotatably connected with the first guide wheel shaft 48, a second guide wheel shaft 47 is fixedly connected between the front and rear side walls of the guide groove 45, a second guide wheel 46 is sleeved on the second guide wheel shaft 47, the second guide wheel 46 is rotatably connected with the second guide wheel shaft 47, and the second guide wheel shaft 47 is located at the lower right side of the first guide wheel shaft 48; a round hole 44 is communicated with the central part of the lower side wall of the guide groove 45, the round hole 44 is communicated with the guide groove 45 and the external space, the second pull rope 37 is guided by the first guide wheel 49 and then extends to the right, and then is guided by the second guide wheel 46 and then extends downwards to penetrate through the round hole 44 to enter the external space, so that the second pull rope 37 is prevented from interfering with other parts to influence the operation of the device; the lower ends of the two second pulling ropes 37 are fixedly connected with a pulling ring 42 pulled by fingers when in use, and the shape of the pulling ring 42 is indefinite. In use, when the user is low in height, the user firstly holds the pull handle 33, then uses fingers to pull the pull ring 42 downwards, the pull ring 42 drives the second pull rope 37 to move downwards, the second pull rope 37 drives the first mounting rod 73 to move downwards, the first mounting rod 73 drives the second mounting rod 72 to move downwards, meanwhile, the second mounting rod 72 stretches the second spring 55, the second mounting rod 72 pulls the first limiting rod 59 to move leftwards through the first pull rope 58 when moving downwards, the first limiting rod 59 compresses the first spring 57, at this time, the first limiting groove 35 is unlocked, the pull handle 33 is pulled downwards by hand, the pull handle 33 drives the first limiting groove 35 to move downwards through the second hinge block 50 and the first hinge block 38, the first limiting groove 35 moves downwards, and the second rack 76 and the first rack 79 move downwards, the second gear 75 and the first gear 78 are respectively driven by the second rack 76 and the first rack 79 to rotate, when the comfortable position of the user is reached, the pull handle 33 and the pull ring 42 are stopped to be pulled, at this time, the first limiting rod 59 is reset under the action of the first spring 57, so that the first limiting groove 35 is locked again, and meanwhile, the second mounting rod 72 is reset under the action of the second spring 55.

As shown in fig. 1, taking the right-side limiting buffer device as an example, the limiting buffer device further includes a chute 41 disposed in the sliding block 25, the chute 41 is disposed in an inclined manner from the upper right to the lower left, the chute 41 is connected with a first buffer rod 23 in a sliding manner, the first buffer rod 23 extends through the chute 41 and the upper side to the upper right and the second chute 21 to enter the external space, the first buffer rod 23 extends through the chute 41 and the lower side to the lower left and the second chute 21 to enter the external space, a plurality of second limiting grooves 24 are uniformly disposed on a side surface of the first buffer rod 23 close to the first limiting groove 35, a buffer groove 26 with a downward opening is disposed at the lower end of the first buffer rod 23, a second buffer rod 29 is connected in the buffer groove 26 in a sliding manner, a fixing plate 27 is sleeved on the second buffer rod 29, and the fixing plate 27 is connected with the second buffer rod 29 in a sliding manner, fixed plate 27 with terminal surface fixed connection under first buffer beam 23, the cover is equipped with buffer board 30 on the second buffer beam 29, buffer board 30 with 29 fixed connection of second buffer beam, the cover is equipped with fourth spring 28 on the second buffer beam 29, fourth spring 28 is located fixed plate 27 with between the buffer board 30, fourth spring 28 one end with 30 upper end fixed connection of buffer board, the fourth spring 28 other end with terminal surface fixed connection under the fixed plate 27, side fixed connection has third hinge block 31 on the dead lever 32 right-hand member, third hinge block 31 with the lower extreme of second buffer beam 29 is articulated.

As shown in fig. 6, the limiting and buffering device further includes a fifth sliding groove 61 provided in the sliding block 25 and having an opening on the left side, a first connecting rod 40 is slidably connected in the fifth sliding groove 61, a baffle 62 is fixedly connected to the lower side wall of the fifth sliding groove 61, the right side surface of the lower end of the first connecting rod 40 abuts against the baffle 62 when the height is adjusted, a connecting rod groove 80 is provided in the upper side wall of the fifth sliding groove 61 in a communicating manner, a sixth sliding groove 71 is provided in the upper side wall of the connecting rod groove 80 in a communicating manner, a second connecting rod 63 is fixedly connected to the right side surface of the first connecting rod 40, a rotating shaft 65 is fixedly connected between the front side wall and the rear side wall of the connecting rod groove 80, a telescopic rod 64 is sleeved on the rotating shaft 65, the telescopic rod 64 is the prior art and is not described again, the telescopic rod 64 is, sliding connection has a movable plate 68 in the sixth spout 71, the movable plate 68 left surface with fixedly connected with third spring 66 between the sixth spout 71 left side wall, movable plate 68 right flank fixedly connected with third connecting rod 69, third connecting rod 69 right-hand member face fixedly connected with second gag lever post 70, second gag lever post 70 extends the card to the right and advances in the second spacing groove 24, telescopic link 64 upper end with third connecting rod 69 is articulated.

As shown in fig. 2, the limiting buffer device further includes a first connecting rod 40 fixedly connected to the left side surface of the sliding block 25, a third rack 39 is fixedly connected to the left end surface of the first connecting rod 40, and the engaging teeth of the third rack 39 are arranged forward; as shown in fig. 7, when the height is adjusted, the second gear 75 is engaged with the third rack 39 in the right-side limit damper, and the first gear 78 is engaged with the third rack 39 in the left-side limit damper. In use, when the second gear 75 rotates, the second gear 75 drives the third rack 39 to rotate, the third rack 39 drives the first connecting rod 40 to move rightwards, the first connecting rod 40 drives the second connecting rod 63 to move rightwards, the second connecting rod 63 drives the lower end of the telescopic rod 64 to move rightwards, the upper end of the telescopic rod 64 moves leftwards, the telescopic rod 64 drives the third connecting rod 69 to move leftwards, the third connecting rod 69 drives the moving plate 68 to compress the third spring 66, and simultaneously the third connecting rod 69 drives the second limiting rod 70 to be pulled out from the second limiting groove 24, so as to unlock the first buffer rod 23, so that the first buffer rod 23 slides downwards in the chute 41 along with the adjustment of the height, and simultaneously the first connecting rod 40 drives the sliding block 25 to move rightwards through the baffle plate 62, when the height adjustment is finished, the moving plate 68 is reset by the third spring 66, the moving plate 68 drives the second limiting rod 70 to be clamped into the second limiting groove 24 again through the third connecting rod 69, so that the first buffer rod 23 is locked again, and when the vehicle is braked suddenly, due to inertia, a human hand has a force to the right on the handle 33, the handle 33 drives the third hinge block 31 to rotate around the second buffer rod 29 through the fixed rod 32, meanwhile, the second buffer rod 29 is driven by the third hinge block 31 to slide into the buffer groove 26, at the same time, the fourth spring 28 is compressed, the force applied to the human body is relieved to a certain extent by the fourth spring 28, when the vehicle is knocked into the rear, the limiting buffer device on the left side works, so that the situation that the human body is toppled over due to inertia is prevented to a certain extent.

It is to be understood that the above-described embodiments are only a few embodiments of the present invention, and not all embodiments. The above examples are only for explaining the present invention and do not constitute a limitation to the scope of protection of the present invention. All other embodiments, which can be derived by those skilled in the art from the above-described embodiments without any creative effort, namely all modifications, equivalents, improvements and the like made within the spirit and principle of the present application, fall within the protection scope of the present invention claimed.

Claims

1. The utility model provides a bus handle with adjustable height, includes organism (20), its characterized in that: open in organism (20) and be equipped with first spout (22), lateral wall communicates respectively about first spout (22) and is provided with second spout (21), second spout (21) will first spout (22) and exterior space intercommunication, bilateral symmetry sliding connection has two sliding blocks (25), every in first spout (22) be provided with spacing buffer in sliding block (25), two spacing buffer about the center of first spout (22) becomes central symmetry, upside fixedly connected with limiting plate (36) between the front and back lateral wall of second spout (21), limiting plate (36) are located the middle part of second spout (21), limiting plate (36) are located two between sliding block (25), be provided with high adjusting device in limiting plate (36).

2. A height adjustable bus handle as claimed in claim 1 wherein: the height adjusting device comprises a third sliding groove (60) which is arranged in the limiting plate (36) and is provided with an upper opening and a lower opening, a lifting rod (34) is arranged in the third sliding groove (60) in a clearance fit mode, a plurality of first limiting grooves (35) are symmetrically formed in the left side surface and the right side surface of the lifting rod (34), a first rack (79) is fixedly connected to the left side surface of the lower portion of the lifting rod (34), a second rack (76) is fixedly connected to the right side surface of the upper portion of the lifting rod (34), the lifting rod (34) extends downwards to penetrate through the first sliding groove (22) and the second sliding groove (21) on the lower side to enter the lower space of the machine body (20), and a first hinging block (38) is fixedly connected to the lower end surface of the lifting rod (34; as shown in fig. 4, the lower end of the first hinged block (38) is hinged to a second hinged block (50), the lower end of the second hinged block (50) is fixedly connected with a fixing rod (32), a handle (33) is arranged on the lower side of the fixing rod (32), the handle (33) is U-shaped, and the left end and the right end of the handle (33) are fixedly connected with the left end and the right end of the lower side surface of the fixing rod (32) respectively.

3. A height adjustable bus handle as claimed in claim 2, wherein: the height adjusting device further comprises limiting assemblies which are arranged on the left side and the right side of the third sliding groove (60) in a bilateral symmetry mode, the left side limiting assembly is taken as an example, the limiting assemblies comprise a fourth sliding groove (56) which is arranged on the left side of the third sliding groove (60), the fourth sliding groove (56) is communicated with the third sliding groove (60), a first limiting rod (59) is connected in the fourth sliding groove (56) in a sliding mode, a first spring (57) is fixedly connected between the left side face of the first limiting rod (59) and the left side wall of the fourth sliding groove (56), under the elastic force action of the first spring (57), the right end of the first limiting rod (59) is clamped into the first limiting groove (35), a guide wheel groove (51) is formed in the left side of the fourth sliding groove (56), and a rotating shaft (53) is fixedly connected between the front side wall and the rear side wall of the guide wheel groove (51), the cover is equipped with reverse wheel (54) on axis of rotation (53), reverse wheel (54) with axis of rotation (53) are rotated and are connected, the first stay cord (58) of the left surface fixedly connected with of first gag lever post (59), first stay cord (58) extend left and run through the left side wall of fourth spout (56) enters into in guide wheel groove (51), first stay cord (58) with the left side wall of fourth spout (56) with sliding connection between the right side wall of guide wheel groove (51), first stay cord (58) are in guide wheel groove (51) with reverse wheel (54) periphery sliding connection, the warp first stay cord (58) become backward, first stay cord (58) downwardly extending runs through the lower lateral wall of guide wheel groove (51) and limiting plate (36) enter into in first spout (22).

4. A height adjustable bus handle as claimed in claim 3 wherein: the height adjusting device further comprises two first mounting rods (73) fixedly connected to the lower ends of the two first pull ropes (58), two second mounting rods (72) are fixedly connected between the upper end faces of the two first mounting rods (73) and between the lower end faces of the two first mounting rods (73), a first gear shaft (77) and a second gear shaft (74) are fixedly connected between the two second mounting rods (72), the first gear shaft (77) and the second gear shaft (74) are bilaterally symmetrical with respect to the center line of the second mounting rod (72), a first gear (78) is sleeved on the first gear shaft (77), the first gear (78) is rotatably connected with the first gear shaft (77), a second gear (75) is sleeved on the second gear shaft (74), and the second gear (75) is rotatably connected with the second gear shaft (74), first gear (78) with first rack (79) meshing, second gear (75) with second rack (76) meshing, every both ends leading flank fixedly connected with second spring (55) about second installation pole (72), every second spring (55) the other end with limiting plate (36) downside fixed connection.

5. A height adjustable bus handle as claimed in claim 4 wherein: the height adjusting device further comprises two second pull ropes (37) fixedly connected to the lower side surfaces of the two first mounting rods (73), and the two second pull ropes (37) are bilaterally symmetrical about the lifting rod (34).

6. A height adjustable bus handle as claimed in claim 5, wherein: the height adjusting device also comprises a guide groove (45) which is arranged in the fixed rod (32) and has an upward opening, and two groups of guide assemblies are symmetrically arranged in the guide groove (45) from left to right; taking the guide assembly on the left side as an example, the guide assembly comprises a first guide wheel shaft (48) fixedly connected between the front side wall and the rear side wall of the guide groove (45), a first guide wheel (49) is sleeved on the first guide wheel shaft (48), the first guide wheel (49) is rotatably connected with the first guide wheel shaft (48), a second guide wheel shaft (47) is fixedly connected between the front side wall and the rear side wall of the guide groove (45), a second guide wheel (46) is sleeved on the second guide wheel shaft (47), the second guide wheel (46) is rotatably connected with the second guide wheel shaft (47), and the second guide wheel shaft (47) is positioned on the lower right side of the first guide wheel shaft (48); a round hole (44) is formed in the center of the lower side wall of the guide groove (45) in a communicating mode, the round hole (44) is communicated with the guide groove (45) and the external space, the second pull rope (37) extends to the right after being guided by the first guide wheel (49), then extends downwards after being guided by the second guide wheel (46) and penetrates through the round hole (44) to enter the external space, and therefore the second pull rope (37) is prevented from interfering with other parts and affecting the operation of the device; the lower ends of the two second pull ropes (37) are fixedly connected with pull rings (42) pulled by fingers when in use, and the shapes of the pull rings (42) are indefinite.

7. A height adjustable bus handle as claimed in claim 6 wherein: by taking the right side as an example, the limiting buffer device further comprises a chute (41) arranged in the sliding block (25), the chute (41) is obliquely arranged from the upper right to the lower left, a first buffer rod (23) is connected in the chute (41) in a sliding manner, the first buffer rod (23) extends and penetrates through the chute (41) and the upper side to the upper right, the second chute (21) enters the external space, the first buffer rod (23) extends and penetrates through the chute (41) and the lower side to the lower left, the second chute (21) enters the external space, a plurality of second limiting grooves (24) are uniformly formed in one side surface, close to the first limiting groove (35), of the first buffer rod (23), a buffer groove (26) with a downward opening is formed in the lower end of the first buffer rod (23), and a second buffer rod (29) is connected in the buffer groove (26) in a sliding manner, a fixing plate (27) is sleeved on the second buffer rod (29), the fixing plate (27) is connected with the second buffer rod (29) in a sliding way, the fixing plate (27) is fixedly connected with the lower end surface of the first buffer rod (23), the second buffer rod (29) is sleeved with a buffer plate (30), the buffer plate (30) is fixedly connected with the second buffer rod (29), a fourth spring (28) is sleeved on the second buffer rod (29), the fourth spring (28) is positioned between the fixed plate (27) and the buffer plate (30), one end of the fourth spring (28) is fixedly connected with the upper end surface of the buffer plate (30), the other end of the fourth spring (28) is fixedly connected with the lower end surface of the fixed plate (27), the upper side surface of the right end of the fixed rod (32) is fixedly connected with a third hinge block (31), the third hinge block (31) is hinged with the lower end of the second buffer rod (29).

8. A height adjustable bus handle as claimed in claim 7 wherein: the limiting buffer device further comprises a fifth sliding groove (61) which is arranged in the sliding block (25) and provided with an opening at the left side, a first connecting rod (40) is connected in the fifth sliding groove (61) in a sliding manner, a baffle (62) is fixedly connected to the lower side wall of the fifth sliding groove (61), the right side surface of the lower end of the first connecting rod (40) is abutted to the baffle (62) when the height is adjusted, a connecting rod groove (80) is formed in the upper side wall of the fifth sliding groove (61) in a communicating manner, a sixth sliding groove (71) is formed in the upper side wall of the connecting rod groove (80) in a communicating manner, a second connecting rod (63) is fixedly connected to the right side surface of the first connecting rod (40), a rotating shaft (65) is fixedly connected between the front side wall and the rear side wall of the connecting rod groove (80), a telescopic rod (64) is sleeved on the rotating shaft (65), the telescopic rod (, telescopic link (64) lower extreme with second connecting rod (63) right-hand member is articulated, sliding connection has movable plate (68) in sixth spout (71), movable plate (68) left surface with fixedly connected with third spring (66) between sixth spout (71) left side wall, movable plate (68) right flank fixedly connected with third connecting rod (69), third connecting rod (69) right-hand member face fixedly connected with second gag lever post (70), second gag lever post (70) extend right and block into in second spacing groove (24), telescopic link (64) upper end with third connecting rod (69) are articulated.

9. A height adjustable bus handle as set forth in claim 8 wherein: spacing buffer still includes fixed connection and is in head rod (40) of sliding block (25) left surface, the left end face fixedly connected with third rack (39) of head rod (40), the meshing tooth of third rack (39) sets up forward, during height-adjusting second gear (75) and the spacing buffer in right side third rack (39) meshing, among first gear (78) and the spacing buffer in left side third rack (39) meshing.