CN210821945U

CN210821945U - Adjustable grab bar device

Info

Publication number: CN210821945U
Application number: CN201921620187.XU
Authority: CN
Inventors: 卓耀; 张祥宇; 欧旭; 王钢波
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Geely Sichuan Commercial Vehicle Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Geely Sichuan Commercial Vehicle Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Development Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-06-23
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses an adjustable grab rail device, which comprises a grab rail, a base, a cylinder body and a sliding piece; the base is a hollow cylinder, and the first end of the base is fixedly connected with the floor in the vehicle; the cylinder body is arranged at the second end of the base and is provided with a first through hole, the sliding part partially or completely extends into the first through hole, and the sliding part is in sliding fit with the inner wall of the cylinder body; the sliding piece is provided with a second through hole matched with the outer diameter of the grab rail, the grab rail is inserted into the second through hole, and the grab rail is fixedly connected with the sliding piece through a connecting piece; the first end of the cylinder body is provided with a limiting part, and the sliding part is located at the limiting part when moving upwards. Compared with the prior art, the utility model, realized that the relative position of bar and base is adjustable, solved the easy cracked problem of bar, and base simple structure, occupation space are little, have improved the use comfort level and the security by bus of bar.

Description

Adjustable grab bar device

Technical Field

The utility model relates to a passenger train spare part technical field especially relates to a grab bar device with adjustable.

Background

At present, in the passenger car industry, a grab rail on a bus is fixed, for example, in the fixed grab rail device shown in fig. 1, two screws simultaneously penetrate through the grab rail and a fixed seat to be connected and fixed, and after connection is completed, the relative position between the grab rail and the fixed seat cannot be adjusted in the axial direction. The bus grab bar adopts the fixing base directly to fix the grab bar on the vehicle floor or top skeleton, and the grab bar has no upper and lower adjustment allowance, because the bus roof is usually installed with air conditioning unit or battery package, great spare part such as compressed natural gas cylinder, the vehicle is when the road surface of jolting, the height of deformation about the automobile body top cap skeleton is high 5-10mm, roof downward pressure directly transmits to the grab bar through the grab bar fixing base on, lead to handrail connecting screw on the fixing base and the grab bar to take place the displacement and produce the abnormal sound, influence riding comfort. The vehicle runs on the road with poor road conditions for a long time, so that the fatigue fracture of the grab bar is easy to cause, and potential safety hazards are generated.

With the improvement of the living standard of the residents, the passenger has higher and higher requirements on the riding comfort and safety of the bus, and therefore, a new grab rail device needs to be developed to solve the problems.

Disclosure of Invention

An object of the utility model is to provide a bar device with adjustable can solve present bar and be unadjustable at the axial with the relative position of base, the bar that causes splits easily, bar and base junction produce abnormal sound scheduling problem.

The utility model discloses a realize through following technical scheme:

an adjustable grab bar device comprises a grab bar, a base, a cylinder body and a sliding piece; the base is a hollow cylinder, and the first end of the base is fixedly connected with the floor in the vehicle; the cylinder body is arranged at the second end of the base and is provided with a first through hole, the sliding part partially or completely extends into the first through hole, and the sliding part is in sliding fit with the inner wall of the cylinder body; the sliding piece is provided with a second through hole matched with the outer diameter of the grab rail, the grab rail is inserted into the second through hole, and the grab rail is fixedly connected with the sliding piece through a connecting piece; the first end of the cylinder body is provided with a limiting part, and the sliding part is located at the limiting part when moving upwards.

Furthermore, the cylinder body is sleeved on the outer peripheral surface of the second end of the base, and the second end of the cylinder body is fixedly connected with the second end of the base.

Further, the base with be equipped with flexible bolster between the cylinder body, be equipped with first connecting hole on the lateral wall of base, be equipped with the second connecting hole on the flexible bolster, be equipped with the third connecting hole on the lateral wall of cylinder body, adopt countersunk screw to pass in proper order first connecting hole the second connecting hole with the third connecting hole will the base flexible bolster with cylinder body fixed connection.

Optionally, the second end of the cylinder body is provided with an internal thread, the second end of the base is provided with an external thread which is correspondingly assembled, and the cylinder body is in threaded connection with the base through the internal thread and the external thread.

Further, the cylinder body and the base are integrally formed.

Further, the limiting part is an inner side flanging arranged along the edge of the first end of the cylinder body.

Furthermore, an axial screw hole is formed in the side wall of the base, and a screw penetrates through the screw hole to fixedly connect the base with the floor in the vehicle.

Furthermore, the sliding part is made of nylon or copper, and the connecting piece is a bolt or a screw.

Optionally, the adjustable grab bar device further comprises an elastic member, a first end of the elastic member is located in the hollow cavity of the base, a second end of the elastic member is in contact with the sliding member, and when the sliding member slides up and down in the second through hole, the elastic member is compressed.

Further, the elastic part is a conical spring, and the sectional area of a first end of the conical spring is larger than that of a second end of the conical spring.

Implement the utility model discloses, following beneficial effect has:

the adjustable grab bar device of the utility model has the advantages that the sliding piece drives the grab bar to slide in the cylinder body by arranging the cylinder body and the sliding piece in the cylinder body, so that the relative position of the grab bar and the base can be adjusted, the stress on the grab bar in the actual use process is reduced, and the problem that the grab bar is easy to break is solved; moreover, because the screw is not adopted to pass through the handrail rod and the handrail seat for connection and fixation, the problem that the screw of the base is easy to break in the prior art is solved; in addition, the base is fixedly connected with the floor in the vehicle by adopting the concealed screws, the base has simple structure, small occupied space, simplicity and attractiveness, the grab rail is stably and reliably connected, and the use comfort and riding safety of the grab rail are improved.

Drawings

In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive work.

FIG. 1 is a schematic view of a prior art fixed grab bar arrangement;

fig. 2 is a schematic sectional structure view of the adjustable grab bar device of the present invention;

fig. 3 is a schematic sectional three-dimensional structure view of the adjustable grab bar device of the present invention;

fig. 4 is a schematic structural diagram of the base of the present invention;

fig. 5 is a schematic structural view of the cylinder body of the present invention;

fig. 6 is a schematic structural view of the sliding member of the present invention;

FIG. 7 is a schematic structural view of an adjustable grab bar assembly according to another embodiment;

wherein the reference numerals in the figures correspond to: 1-grab bar, 2-base, 3-cylinder body, 31-cylinder cover, 4-sliding part, 5-conical spring, 6-flexible buffer part, 7-countersunk screw, 8-connecting piece and 9-screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "connecting" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present embodiment, referring to fig. 2-6, an adjustable grab bar device is provided, which includes a grab bar 1, a base 2, a cylinder 3 and a sliding member 4; the base 2 is a hollow cylinder, and the first end of the base 2 is fixedly connected with the floor in the vehicle; the cylinder body 3 is arranged at the second end of the base 2, the cylinder body 3 is provided with a first through hole, the sliding part 4 partially or completely extends into the first through hole, and the sliding part 4 is in sliding fit with the inner wall of the cylinder body 3; the sliding piece 4 is provided with a second through hole matched with the outer diameter of the grab rail 1, the grab rail 1 is inserted into the second through hole, and the grab rail 1 is fixedly connected with the sliding piece 4 through a connecting piece; the first end of the cylinder body 3 is provided with a limiting part, and the sliding part 4 is limited in the limiting part when moving upwards. This adjustable bar device drives handrail pole 1 through slider 4 and slides in cylinder body 3, has realized that the relative position of handrail pole 1 and base 2 is adjustable, has reduced the stress that receives in the practical use of handrail pole 1, has solved the easy cracked problem of handrail pole 1.

In this embodiment, the cylinder 3 is sleeved on the outer peripheral surface of the second end of the base 2, and the second end of the cylinder 3 is fixedly connected with the second end of the base 2.

Further, a flexible buffer 6 is arranged between the base 2 and the cylinder 3. Adopt flexible bolster 6, on the one hand the assembly of being convenient for, on the other hand is favorable to reducing the friction between cylinder body 3 and base 2.

Furthermore, the flexible buffer member 6 is a flexible gasket which is a hollow cylinder and is sleeved between the base 2 and the cylinder body 3, the flexible gasket is additionally arranged between the cylinder body 3 and the base 2, a first connecting hole is formed in the side wall of the base 2, a second connecting hole is formed in the flexible gasket 6, a third connecting hole is formed in the side wall of the cylinder body 3, and the base 2, the flexible gasket 6 and the cylinder body 3 are fixedly connected by penetrating the first connecting hole, the second connecting hole and the third connecting hole in sequence through a countersunk screw 7. In the actual assembly process, the base 2 is firstly arranged on the floor in the vehicle, and due to the high verticality requirement between the floor in the vehicle and the grab rail 1, the verticality requirement can be reduced by adopting the flexible gasket, so that the convenience of the assembly process is improved; in addition, friction between the cylinder 3 and the base 2 can be effectively reduced.

Optionally, the second end of cylinder body 3 is equipped with the internal thread, and the second end of base 2 is equipped with the external screw thread that corresponds the assembly, and cylinder body 3 passes through internal thread and external screw thread threaded connection with base 2, adopts threaded connection's mode, and under the prerequisite that satisfies the straightness requirement that hangs down of handrail 1 and interior floor of car, convenient and fast is favorable to improving assembly efficiency.

In this embodiment, the limiting portion is an inner flange provided along the first end edge of the cylinder body 3. This flanging is important to prevent the handrail rod 1 from coming out of the cylinder 3 when the handrail is subjected to a large impact force. If the grab bar 1 is separated from the cylinder 3, the grab bar 1 only has a fixed point at the upper end, and the lower part is a cantilever about 2 meters, at this time, the lower part of the grab bar 1 can generate great displacement in the stress direction, and great injury can be caused to passengers in the displacement process of the lower part of the grab bar 1. In addition, after the grab bar 1 is separated from the cylinder 3, passengers using the grab bar 1 are not well supported, and can fall out for a long distance, which causes great personnel injury.

In this embodiment, set up axial screw hole on the lateral wall of base 2, adopt screw 9 to pass the screw hole with base 2 and floor fixed connection in the car, adopt this connected mode, screw 9 is interior concealed, can reduce the overall dimension of bar base 2, the outward appearance is more succinct small and exquisite, has improved the aesthetic property of bar base moreover.

In this embodiment, the inside aperture of slider 4 matches with 1 external diameter of bar, and the cooperation mode is the tight fit.

In this embodiment, the slider 4 is further shaped as a hollow cylinder, the grab bar 1 is inserted into the hollow cavity of the hollow cylinder, the outer diameter of the hollow cylinder is smaller than the inner diameter of the cylinder 3, the hollow cylinder extends into the cylinder 3, and the hollow cylinder is located at the position limiting part of the cylinder 3 during upward movement.

In this embodiment, the material of the sliding member 4 is nylon or copper. Wear-resisting needs are considered to this slider 4, adopt can self-lubricate and the nylon material of intensity high abrasion, and the nylon material still has an advantage can not produce the abnormal sound when rubbing with the metal relative slip, has improved bar 1's use comfort. In addition, copper material is also an excellent wear-resistant material, and can be applied to the sliding member 4.

The material of the sliding member 4 is not limited to the nylon or copper, and other materials having self-lubrication, high strength, and wear resistance may be applied to the sliding member 4 as long as the same function is achieved.

In this embodiment, the slider 4 is provided with a first connecting hole, the grab rail 1 is provided with a second connecting hole correspondingly assembled, and the connecting member 8 penetrates through the first connecting hole and the second connecting hole to fixedly connect the grab rail 1 and the slider 4.

Further, the connecting member 8 is a screw, and the grab bar 1 and the sliding member 4 are fixedly connected through the screw.

Alternatively, the connecting member 8 is a bolt, and the grab bar 1 and the sliding member 4 are fixedly connected through the bolt.

Further, the bolt is the spring bolt, considers connection reliability and prevents that the bolt from rubbing with 3 inner walls of cylinder body, and this bolt adopts the spring bolt, and the tip is 3 ~ 5mm low relative slider 4.

In another embodiment, the adjustable grab bar device further comprises an elastic member, a first end of the elastic member is located in the hollow cavity of the base 2, a second end of the elastic member is in contact with the sliding member 4, and the elastic member is compressed when the sliding member 4 slides up and down in the second through hole.

Further, the elastic member is a conical spring 5, the sectional area of the first end of the conical spring 5 is larger than that of the second end of the conical spring 5, and the conical spring 5 is adopted, so that the spring is prevented from interfering with the inner wall of the cylinder 3 when the spring is compressed, and the initial position of the sliding member 4 can be assisted and positioned.

The adjustable grab bar apparatus of this embodiment can be divided into a fixed part and a movable part. The base 2 is fixed on the vehicle body by the screw 9, the base 2, the flexible buffer 6 and the cylinder 3 are fixed by the countersunk head screw 7, and the three parts are fixed on the floor in the vehicle after being connected into a whole by the countersunk head screw 7, and are defined as fixed parts. One end of the grab bar 1 is typically fixed to the roof of the vehicle interior and the other end is connected to the base of the movable grab bar. The grab bar 1 extends from the top of the vehicle and then extends into the cylinder 3 from the upper part, and the grab bar 1 is connected and fixed with the sliding piece 4 by a bolt or a screw after extending into the cylinder 3. The grab bar 1 is connected with the pin 8 and fixed on the roof through the grab bar 1, which is defined as the movable part. When a heavy component such as a battery or a gas cylinder is arranged at the top of the vehicle and the vehicle runs on a bumpy road, the downward amplitude of vibration of the top of the vehicle is up to 5-10 mm. At the moment, the roof in the vehicle sinks to drive the grab rail 1 to sink; the grab rail 1 sinks to drive the sliding part 4 to sink. The slider 4 moves down along the inner wall of the cylinder 3 and the slider 4 and the cylinder 3 are subjected to only a small stress. Thus, the problem that the grab rail device in the prior art can not provide axial adjustment for the grab rail 1 and the grab rail 1 is broken due to large stress is solved.

Another embodiment of the present invention provides an adjustable grab bar apparatus, and referring to fig. 7, the cylinder body 3 and the base 2 of the adjustable grab bar apparatus of this embodiment are integrally formed.

In this embodiment, the limiting part is the cylinder cover 31, which plays a limiting role, and prevents the grab bar 1 from being separated from the cylinder body 3 and injuring passengers.

Further, the cylinder head 31 is screwed to the cylinder block 3 to ensure the stable reliability of the connection.

In this embodiment, the part of slider 4 stretches into cylinder body 3, and the first end of slider 4 stretches into in the first through-hole of cylinder body 3, and the second end of slider 4 is seted up and is supplied handrail pole 1 male hole, and handrail pole 1 is connected to on the slider 4 through connecting piece 8, and connecting piece 8 adopts the screw, with slider 4 and handrail pole 1 fixed connection. Because the part of slider 4 stretches into in the cylinder body 3, set up the cylinder of less diameter between the first end of slider 4 and the second end, the diameter of this cylinder is less than the trompil diameter at cylinder cap 31 center to make cylinder cap 31 play limiting displacement to the upwards slip of slider 4, prevent that bar 1 from deviating from in the cylinder body 3.

In this embodiment, the base 2 is fixed to the floor in the vehicle interior with screws.

In this embodiment, because of bar 1 and slider 4 fixed connection, when bar 1 has axial displacement, bar 1 drives slider 4 and slides in cylinder body 3, has realized that bar 1 and base 2's relative position is adjustable, has reduced the stress that receives in the practical use of bar 1, has solved the easy cracked problem of bar 1.

The above embodiment of the utility model has following beneficial effect: the adjustable grab bar device of the utility model has the advantages that the sliding piece drives the grab bar to slide in the cylinder body by arranging the cylinder body and the sliding piece in the cylinder body, so that the relative position of the grab bar and the base can be adjusted, the stress on the grab bar in the actual use process is reduced, and the problem that the grab bar is easy to break is solved; moreover, because the screw is not adopted to pass through the handrail rod and the handrail seat for connection and fixation, the problem that the screw of the base is easy to break in the prior art is solved; in addition, the base is fixedly connected with the floor in the vehicle by adopting the concealed screws, the base has simple structure, small occupied space, simplicity and attractiveness, the grab rail is stably and reliably connected, and the use comfort and riding safety of the grab rail are improved.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. An adjustable grab rail device is characterized by comprising a grab rail (1), a base (2), a cylinder body (3) and a sliding piece (4);

the base (2) is a hollow cylinder, and the first end of the base (2) is fixedly connected with the floor in the vehicle;

the cylinder body (3) is arranged at the second end of the base (2), the cylinder body (3) is provided with a first through hole, the sliding part (4) partially or completely extends into the first through hole, and the sliding part (4) is in sliding fit with the inner wall of the cylinder body (3);

the sliding piece (4) is provided with a second through hole matched with the outer diameter of the grab rail (1), the grab rail (1) is inserted into the second through hole, and the grab rail (1) is fixedly connected with the sliding piece (4) through a connecting piece (8);

the first end of the cylinder body (3) is provided with a limiting part, and the sliding part (4) is limited to the limiting part when moving upwards.

2. The adjustable grab bar apparatus of claim 1, wherein the cylinder (3) is sleeved on the outer peripheral surface of the second end of the base (2), and the second end of the cylinder (3) is fixedly connected with the second end of the base (2).

3. The adjustable grab bar device of claim 2, wherein a flexible buffer member (6) is arranged between the base (2) and the cylinder body (3), a first connecting hole is arranged on the side wall of the base (2), a second connecting hole is arranged on the flexible buffer member (6), a third connecting hole is arranged on the side wall of the cylinder body (3), and a countersunk screw (7) is adopted to sequentially pass through the first connecting hole, the second connecting hole and the third connecting hole to fixedly connect the base (2), the flexible buffer member (6) and the cylinder body (3).

4. The adjustable grab bar apparatus of claim 2, wherein the second end of the cylinder body (3) is provided with an internal thread, the second end of the base (2) is provided with an external thread which is correspondingly assembled, and the cylinder body (3) and the base (2) are in threaded connection through the internal thread and the external thread.

5. The adjustable grab bar apparatus of claim 1, characterized in that the cylinder block (3) is integrally formed with the base (2).

6. The adjustable grab bar apparatus of claim 1, wherein the limiting portion is an inside flange provided along the first end edge of the cylinder body (3).

7. The adjustable grab rail apparatus as claimed in claim 1, wherein the side wall of the base (2) is provided with an axial screw hole, and the base (2) is fixedly connected with the floor inside the vehicle by a screw (9) passing through the screw hole.

8. The adjustable grab bar apparatus of claim 1, wherein the sliding member (4) is made of nylon or copper, and the connecting member (8) is a bolt or screw.

9. The adjustable grab bar apparatus of claim 1, further comprising an elastic member, a first end of the elastic member is located in the hollow cavity of the base (2), a second end of the elastic member is in contact with the sliding member (4) to act, and the elastic member is compressed when the sliding member (4) slides up and down in the second through hole.

10. The adjustable grab bar apparatus of claim 9, characterized in that the elastic member is a conical spring (5), and a cross-sectional area of a first end of the conical spring (5) is larger than a cross-sectional area of a second end of the conical spring (5).