Adjustable bus handrail

Abstract

The invention discloses an adjustable bus handrail, and belongs to the field of bus handrails, the adjustable bus handrail comprises a transversely arranged handrail supporting rod, a holding ring for a user to hold is arranged below the handrail supporting rod, and the holding ring is hung below the handrail supporting rod through a connecting belt; the holding ring is hollow, a locking mechanism is arranged in the holding ring, the lower end of the connecting belt extends into the holding ring and is wound on an execution part of the locking mechanism, and the locking mechanism is used for rolling or unrolling the connecting belt so as to adjust the distance between the holding ring and the holding rod and the supporting rod; the locking mechanism can be used for winding or unwinding the connecting belt, so that the effect of adjusting the distance between the holding ring and the handrail supporting rod is achieved, the purpose of adjusting the height of the bus handrail is achieved, and the bus handrail can meet the requirements of passengers with different heights.

Description

Technical Field

[0001] The invention belongs to the field of bus handrails, and in particular relates to an adjustable bus handrail. Background Art

[0002] With the intensification of urbanization, buses have become more popular and cover most urban and rural areas. In order to increase the transport capacity, buses generally have fewer seats and a certain area of ​​standing area. In order to prevent people from falling or even getting injured while standing, bus handrails are generally installed inside the bus for people to hold on to when standing to increase stability.

[0003] However, in the prior art, most of the bus handrails are fixedly hung on the bus's suspension rod by means of a connecting belt, so as to provide a certain stability to the passengers when they grasp the handrail. In this manner, the connecting belt is of a fixed length and cannot be adjusted in height, so that some children with immature height cannot reach out and grasp the handrail when standing, and cannot provide a certain stability to passengers with shorter heights.

[0004] Therefore, it is necessary to provide a bus handrail that can be easily adjusted in height to accommodate passengers of different heights. Summary of the invention

[0005] The embodiment of the present invention provides an adjustable bus handrail to solve the problems in the prior art.

[0006] The embodiment of the present invention adopts the following technical scheme: an adjustable bus handrail, comprising a laterally arranged handrail support rod, a grip ring for a user to hold is provided below the handrail support rod, and the grip ring is hung below the handrail support rod through a connecting belt; the grip ring is hollow and has a locking mechanism inside, the lower end of the connecting belt extends into the grip ring and is wound around the actuator of the locking mechanism, and the locking mechanism reels or unreels the connecting belt to adjust the distance between the grip ring and the handrail support rod.

[0007] Preferably, the locking mechanism includes a moving rod, a bearing seat and a sleeve; the moving rod passes through the through hole on the side of the grip ring to the inside of the grip ring, the bearing seat is installed inside the grip ring, and the sleeve is installed on the bearing seat. The moving rod is coaxially inserted into the sleeve and linearly slides with the sleeve, and the lower end of the connecting belt is fixedly connected to the sleeve and wrapped around the outside of the sleeve; an elastic component is also provided inside the grip ring, a reset structure is provided between the elastic component and the end of the moving rod, and a locking component is also provided inside the grip ring for locking the moving rod.

[0008] Preferably, the reset structure includes a connecting sleeve, a torsion spring and a push rod; the push rod is located at the end of the moving rod and is coaxial with the moving rod, the torsion spring is located between the moving rod and the push rod, and the two ends of the torsion spring are respectively installed on the moving rod and the push rod; the connecting sleeve is coaxial with the moving rod and is located on the outside of the torsion spring, and both ends of the connecting sleeve are provided with inner annular flanges coaxial therewith, and the two inner annular flanges are respectively rotatably connected in the first annular groove on the outer wall of the moving rod and the second annular groove on the outer wall of the push rod.

[0009] Preferably, the elastic component includes a guide column and a spring; the guide column is fixedly installed inside the grip ring, the guide column is located at the end of the push rod away from the moving rod and is coaxially arranged with the push rod, the spring is located in a circular groove on the push rod, and the guide column is slidably inserted in the circular groove; the outer wall of the guide column is provided with at least one first strip block consistent with its axial direction, and the circular groove is provided with a first strip groove that slidably cooperates with the first strip block.

[0010] Preferably, the inner wall of the shaft sleeve is provided with at least one second strip block which is axially consistent with the shaft sleeve, and the moving rod is provided with a second strip groove which is slidably matched with the second strip block.

[0011] Preferably, the locking assembly includes a first annular block installed inside the grip ring, a protrusion is provided on the outer end of the first annular block, the movable rod is located inside the first annular block and the two are coaxial; a second annular block is coaxially connected to the movable rod, a plurality of slots are arranged around the second annular block, and the protrusion is inserted into one of the slots.

[0012] Preferably, a button is installed at one end of the moving rod located outside the grip ring.

[0013] Preferably, the lower end of the grip ring is provided with an annular cavity.

[0014] Preferably, a sleeve is provided at the upper end of the connecting belt, and the sleeve is fixedly mounted on the handrail support rod.

[0015] At least one of the above technical solutions adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0016] Firstly, the present invention can be used to reel in or reel in the connecting belt through the locking mechanism, so as to adjust the distance between the grip ring and the handrail support rod, thereby achieving the purpose of adjusting the height of the bus handrail, which can meet the needs of passengers of different heights.

[0017] Secondly, the user only needs to press the button, raise or lower the arm and pull the grip ring to shorten or lengthen the connecting belt, thereby adjusting the height of the armrest, which is suitable for people of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a partial three-dimensional structural cross-sectional view of the present invention;

[0021] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the locking mechanism and the connecting belt of the present invention;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the moving rod, torsion spring and push rod of the present invention;

[0024] Figure 6 It is a partial structural exploded diagram of the locking mechanism of the present invention;

[0025] Figure 7 It is a schematic diagram of the assembly of the moving rod and the locking assembly of the present invention;

[0026] Reference numerals

[0027] 1-handle support rod; 2-grip ring; 21-through groove; 22-through hole; 23-annular cavity; 3-connecting belt; 31-sleeve; 4-locking mechanism; 41-moving rod; 411-first annular groove; 412-second strip groove; 42-bearing seat; 43-sleeve; 431-second strip block; 44-button; 5-elastic component; 51-guide column; 511-first strip block; 52-spring; 6-reset structure; 61-connecting sleeve; 611-inner annular flange; 62-torsion spring; 63-thrust rod; 631-second annular groove; 632-circular groove; 633-first strip groove; 7-locking component; 71-first annular block; 711-bump; 72-second annular block; 721-slot. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] Reference Figures 1 to 7 As shown, an embodiment of the present invention provides an adjustable bus handrail, comprising a horizontally arranged handrail support rod 1, a grip ring 2 for a user to hold is provided below the handrail support rod 1, the grip ring 2 is hung below the handrail support rod 1 through a connecting belt 3, a sleeve 31 is provided at the upper end of the connecting belt 3, the sleeve 31 is fixedly mounted on the handrail support rod 1, an annular cavity 23 is provided at the lower end of the grip ring 2, and the user can hold the grip ring 2 through the annular cavity 23 to stabilize the user's body;

[0031] The grip ring 2 is hollow and has a locking mechanism 4 inside. The lower end of the connecting belt 3 extends into the grip ring 2 and is wound around the execution part of the locking mechanism 4. The locking mechanism 4 winds or unwinds the connecting belt 3 to adjust the distance between the grip ring 2 and the handrail support rod 1.

[0032] In this embodiment, a through groove 21 is provided on the top of the grip ring 2, and the end of the connecting belt 3 extends into the grip ring 2 through the through groove 21. The locking mechanism 4 can be used to reel in or reel out the connecting belt 3, thereby achieving the effect of adjusting the distance between the grip ring 2 and the handrail support rod 1, thereby achieving the purpose of adjusting the height of the bus handrail, which can meet the needs of passengers of different heights.

[0033] Specifically, the locking mechanism 4 includes a moving rod 41, a bearing seat 42 and a sleeve 43; the moving rod 41 passes through the through hole 22 on the side of the grip ring 2 to the inside of the grip ring 2, the bearing seat 42 is installed inside the grip ring 2, and the sleeve 43 is installed on the bearing seat 42. The moving rod 41 is coaxially inserted into the sleeve 43 and linearly slides with the sleeve 43. At least one second strip block 431 is provided on the inner wall of the sleeve 43 in line with its axial direction, and a second strip groove 412 is provided on the moving rod 41 to slide with the second strip block 431, so as to achieve sliding cooperation between the moving rod 41 and the sleeve 43, thereby avoiding relative rotation between the two.

[0034] The lower end of the connecting belt 3 is fixedly connected to the shaft sleeve 43 and is wound around the outer side of the shaft sleeve 43; an elastic component 5 is also provided inside the grip ring 2, a reset structure 6 is provided between the elastic component 5 and the end of the moving rod 41, and a locking component 7 is also provided inside the grip ring 2 for locking the moving rod 41;

[0035] In this embodiment, the elastic component 5 can elastically support the reset structure 6 and the moving rod 41, and the moving rod 41 can slide laterally inside the sleeve 43; under normal circumstances, the self-resetting torsion structure can apply an elastic rotational force in a clockwise direction to the moving rod 41, thereby driving the sleeve 43 to reel in the connecting belt 3.

[0036] Specifically, the reset structure 6 includes a connecting sleeve 61, a torsion spring 62 and a push rod 63; the push rod 63 is located at the end of the moving rod 41 and is coaxial with the moving rod 41, the torsion spring 62 is located between the moving rod 41 and the push rod 63, the two ends of the torsion spring 62 are respectively mounted on the moving rod 41 and the push rod 63, and the end of the moving rod 41 located on the outside of the grip ring 2 is mounted with a button 44; the connecting sleeve 61 is coaxial with the moving rod 41 and is located on the outside of the torsion spring 62, and the two ends of the connecting sleeve 61 are provided with inner annular flanges 611 coaxial therewith, and the two inner annular flanges 611 are respectively rotatably connected in the first annular groove 411 on the outer wall of the moving rod 41 and the second annular groove 631 on the outer wall of the push rod 63;

[0037] The elastic component 5 includes a guide column 51 and a spring 52; the guide column 51 is fixedly installed inside the grip ring 2, the guide column 51 is located at one end of the push rod 63 away from the moving rod 41 and is coaxially arranged with the push rod 63, the spring 52 is located in a circular groove 632 on the push rod 63, and the guide column 51 is slidably inserted in the circular groove 632; the outer wall of the guide column 51 is provided with at least one first strip block 511 consistent with its axial direction, and the circular groove 632 is provided with a first strip groove 633 that slidably cooperates with the first strip block 511;

[0038] The locking assembly 7 includes a first annular block 71 installed inside the grip ring 2, and a protrusion 711 is provided at the outer end of the first annular block 71. The moving rod 41 is located in the first annular block 71 and the two are coaxial; a second annular block 72 is coaxially connected to the moving rod 41, and a plurality of slots 721 are surrounded by the second annular block 72, and the protrusion 711 is inserted into one of the slots 721.

[0039] In this embodiment, when the grip ring 2 is not subjected to force, under the action of the spring 52, the second annular block 72 abuts against the first annular block 71, and the protrusion 711 is inserted into one of the slots 721. When the user needs to adjust the height of the grip ring 2, the user presses the button, so that the moving rod 41 drives the connecting sleeve 61, the torsion spring 62 and the push rod 63 to slide toward the direction close to the guide column 51, so that the spring 52 is compressed, and the first annular block 71 and the second annular block 72 are disengaged, and the protrusion 711 is also disengaged from the corresponding slot 721. Then the user raises or lowers the height of the grip ring 2 according to the needs:

[0040] When raising the grip ring 2, the user directly moves his hand upwards, and under the action of the torsion spring 62, a rotation force is given to the moving rod 41, so that the moving rod 41 drives the shaft sleeve 43 to reel the connecting belt 3 together, thereby achieving the effect of raising the grip ring 2;

[0041] When lowering the height of the grip ring 2, the user holds the grip ring 2 and pulls it downward, so that the moving rod 41 and the shaft sleeve 43 can overcome the torsion force of the torsion spring 62 and rotate, thereby achieving the purpose of rolling the connecting belt 3, and the hanging length of the connecting belt 3 is lengthened, thereby lowering the height of the grip ring 2;

[0042] To sum up, when the grip ring 2 reaches a suitable height, the staff releases the button 44, and under the action of the spring 52, the moving rod 41, the connecting sleeve 61, the torsion spring 62 and the top rod 63 move laterally together to reset, and make the protrusion 711 abut against the second annular block 72. Subsequently, under the action of the torsion spring 62, the moving rod 41 and the second annular block 72 rotate together, and make the protrusion 711 insert into one of the slots 721, thereby achieving the effect of locking the moving rod 41, thereby completing the purpose of adjusting the height of the grip ring 2; the user only needs to press the button 44, and raise or lower the arm to pull the grip ring 2 to shorten or lengthen the connecting belt 3, thereby achieving the adjustment of the armrest height, which is suitable for people of different heights.

[0043] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An adjustable bus handrail, characterized in that: The utility model comprises a horizontally arranged handrail support rod (1), wherein a grip ring (2) for a user to hold is arranged below the handrail support rod (1), and the grip ring (2) is hung below the handrail support rod (1) through a connecting belt (3); the grip ring (2) is hollow and a locking mechanism (4) is arranged inside the grip ring (2), the lower end of the connecting belt (3) extends into the grip ring (2) and is wound around the execution part of the locking mechanism (4), and the locking mechanism (4) reels or unreels the connecting belt (3) to adjust the distance between the grip ring (2) and the handrail support rod (1).

2. The adjustable bus handrail according to claim 1, characterized in that: The locking mechanism (4) comprises a moving rod (41), a bearing seat (42) and a shaft sleeve (43); The moving rod (41) passes through the through hole (22) on the side of the grip ring (2) to the inside of the grip ring (2), the bearing seat (42) is installed inside the grip ring (2), the shaft sleeve (43) is installed on the bearing seat (42), the moving rod (41) is coaxially inserted into the shaft sleeve (43) and linearly slides with the shaft sleeve (43), and the lower end of the connecting belt (3) is fixedly connected to the shaft sleeve (43) and is wrapped around the outside of the shaft sleeve (43).

3. The adjustable bus handrail according to claim 2, characterized in that: An elastic component (5) is also provided inside the grip ring (2), a reset structure (6) is provided between the elastic component (5) and the end of the moving rod (41), and a locking component (7) is also provided inside the grip ring (2) for locking the moving rod (41).

4. The adjustable bus handrail according to claim 3, characterized in that: The reset structure (6) comprises a connecting sleeve (61), a torsion spring (62) and a push rod (63); The push rod (63) is located at the end of the moving rod (41) and is coaxial with the moving rod (41), the torsion spring (62) is located between the moving rod (41) and the push rod (63), and the two ends of the torsion spring (62) are respectively mounted on the moving rod (41) and the push rod (63); The connecting sleeve (61) is coaxial with the moving rod (41) and is located outside the torsion spring (62). Both ends of the connecting sleeve (61) are provided with inner annular flanges (611) coaxial therewith. The two inner annular flanges (611) are rotatably connected to a first annular groove (411) on the outer wall of the moving rod (41) and a second annular groove (631) on the outer wall of the push rod (63).

5. The adjustable bus handrail according to claim 4, characterized in that: The elastic component (5) comprises a guide column (51) and a spring (52); The guide column (51) is fixedly installed inside the grip ring (2), the guide column (51) is located at one end of the push rod (63) away from the moving rod (41) and is coaxially arranged with the push rod (63), the spring (52) is located in a circular groove (632) on the push rod (63), and the guide column (51) is slidably inserted in the circular groove (632); The outer wall of the guide column (51) is provided with at least one first strip block (511) which is axially consistent with the guide column, and the circular groove (632) is provided with a first strip groove (633) which is slidably matched with the first strip block (511).

6. The adjustable bus handrail according to claim 3, characterized in that: The inner wall of the shaft sleeve (43) is provided with at least one second strip block (431) which is axially consistent with the shaft sleeve, and the moving rod (41) is provided with a second strip groove (412) which is slidably matched with the second strip block (431).

7. The adjustable bus handrail according to claim 4, characterized in that: The locking assembly (7) comprises a first annular block (71) installed inside the grip ring (2), a convex block (711) is provided at the outer end of the first annular block (71), and the moving rod (41) is located inside the first annular block (71) and the two are coaxial; A second annular block (72) is coaxially connected to the moving rod (41), and a plurality of slots (721) are arranged around the second annular block (72), and the protrusion (711) is inserted into one of the slots (721).

8. The adjustable bus handrail according to claim 3, characterized in that: A button (44) is installed at one end of the moving rod (41) located outside the grip ring (2).

9. The adjustable bus handrail according to claim 1, characterized in that: The lower end of the grip ring (2) is provided with an annular cavity (23).

10. The adjustable bus handrail according to claim 1, characterized in that: The upper end of the connecting belt (3) is provided with a sleeve (31), and the sleeve (31) is fixedly mounted on the handrail support rod (1).

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