CN212685350U

CN212685350U - Handrail base

Info

Publication number: CN212685350U
Application number: CN202021421203.5U
Authority: CN
Inventors: 汪元; 郭凯; 吴敏
Original assignee: Zhongzhi Yike Chengdu Automobile Co ltd
Current assignee: Zhongzhi Yike Chengdu Automobile Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-03-12
Anticipated expiration: 2030-07-17

Abstract

The utility model relates to a handrail base belongs to the fixed technical field of passenger train base. This handrail base, including being used for fixing the hollow bar of connecting base and vertical setting on the automobile body chassis, it is cylindric to connect the base, the top of connecting the base is equipped with the settling tank, the settling tank is equipped with the handrail connecting seat, the lower part setting of handrail connecting seat is in the settling tank, the upper portion setting of handrail connecting seat is in the bar lower part, just the upper portion of handrail connecting seat with the bottom threaded connection of bar, the bar overcoat is equipped with fixed cover, be equipped with in the fixed cover be used for with the connecting seat supports and presses the boss structure in the settling tank, the lower part inboard of fixed cover with the outer wall threaded connection of connecting the base. Has the advantages that: the assembling efficiency is high, the installation strength is low, the fixation is firm, the universality is strong, the cost is low, and the manufacture is simple.

Description

Handrail base

Technical Field

The utility model belongs to the technical field of the handrail base is fixed, concretely relates to handrail base.

Background

At present, the grab bar and the base of each urban bus main engine plant in China all adopt a traditional rigid connection structure, the grab bar with the structure is inserted into the grab base, an electric drill is needed to drill a mounting through hole in the grab bar, and then two hexagon socket head cap bolts are used for fixing. The rigid connection structure has high assembly strength, the fixed bolt is not tightly matched with the grab rail, the quality defects of looseness and abnormal sound of the grab rail are easily generated, and the grab rail and the fixed bolt of the base are exposed outside, so that the aesthetic property is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem and provide a handrail base, assembly efficiency is high, and the installation intensity is low, and is fixed firm, and the commonality is strong, with low costs, make simply.

The utility model provides an above-mentioned technical problem's technical scheme as follows: this handrail base includes: including being used for fixing the hollow bar of connecting base and vertical setting on the automobile body chassis, it is cylindricly to connect the base, the top of connecting the base is equipped with the arrangement groove, the arrangement inslot is equipped with the handrail connecting seat, the lower part setting of handrail connecting seat is in the arrangement inslot, the upper portion setting of handrail connecting seat is in the bar lower part, just the upper portion of handrail connecting seat with the bottom threaded connection of bar, the bar overcoat is equipped with fixed cover, be equipped with in the fixed cover be used for with the connecting seat supports and presses the boss structure in the arrangement inslot, the lower part inboard of fixed cover with the outer wall threaded connection of connecting the base.

Has the advantages that: the assembling efficiency is high, the installation strength is low, the fixation is firm, the universality is strong, the cost is low, and the manufacture is simple.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the grab bar with be equipped with the bush between the fixed cover, the bottom of bush with the up end butt of handrail connecting seat, the top inboard of fixed cover is equipped with and is used for pressing the interior edgewise on bush top.

The beneficial effect of adopting the further scheme is that: the fixed sleeve drives the bush to abut against the upper end face of the handrail base downwards to limit the axial movement of the handrail rod.

Further, a rubber pad and a gasket are sequentially arranged between the inner bottom of the placing groove and the armrest connecting seat from top to bottom.

The beneficial effect of adopting the further scheme is that: the grab bar presents the flexible connection mode, and the top of fixed cover 2 lower cavity leaves 2mm clearances with the top of connecting base 8, has realized the flexible motion of grab bar axial, effectively reduces the abnormal sound.

Furthermore, the bottom of handrail pole is equipped with the internal thread, the upper portion of handrail connecting seat be equipped with the external screw thread that the internal thread cooperation is connected.

The beneficial effect of adopting the further scheme is that: simple structure, convenient operation, and convenient assembly and disassembly.

Furthermore, the lower part of the fixed sleeve is provided with an internal thread, and the connecting base is provided with an external thread which is matched and connected with the internal thread.

Further, the bottom in the arrangement groove is provided with a bolt installation groove which penetrates through the connection base, and a bolt used for installing the connection base on the vehicle body underframe is arranged in the bolt installation groove.

The beneficial effect of adopting the further scheme is that: simple structure, it is fixed effectual, avoid fixing bolt to expose outside, improve the aesthetic property.

Furthermore, the outer wall of the fixed sleeve is provided with a blind hole convenient for installation and disassembly.

The beneficial effect of adopting the further scheme is that: be convenient for equipment and dismantlement improve work efficiency, avoid impurity, dust, incrustation scale to flow into to connecting in the base.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a full sectional view of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a grab rail; 2. fixing a sleeve; 3. a bushing; 4. a handrail connecting seat; 5. a rubber pad; 6. a gasket; 7. a bolt; 8. connecting a base; 9. and (4) blind holes.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Examples

As shown in fig. 1 and 2, the present embodiment provides an armrest base, including: a hollow bar 1 for fixing connection base 8 and vertical setting on the automobile body chassis, connection base 8 is cylindricly, the top of connecting base 8 is equipped with the settling groove, be equipped with handrail connecting seat 4 in the settling groove, the lower part of handrail connecting seat 4 sets up in the settling groove, the upper portion of handrail connecting seat 4 sets up in bar 1 lower part, just the upper portion of handrail connecting seat 4 with the bottom threaded connection of bar 1, bar 1 overcoat is equipped with fixed cover 2, be equipped with in the fixed cover 2 be used for with connecting seat 4 supports presses the boss structure in the settling groove, be equipped with the upper chamber and the lower chamber of mutual intercommunication in the fixed cover 2, upper chamber and fixed cover 2 top intercommunication, lower chamber and fixed cover 2 bottom intercommunication, upper chamber and lower chamber are coaxial cylindrical cavity, the inner diameter of the upper cavity is smaller than that of the lower cavity, the boss structure is formed between the upper cavity and the lower cavity, the upper cavity is sleeved outside the grab bar 1, and the inner wall of the lower cavity is in threaded connection with the outer wall of the connecting base 8.

This device is the connection structure of handrail pole and base of each urban public bus host computer factory in China, and the rigidity structure is adopted in traditional design, and this application passes through handrail pole 1 and 4 threaded connection of handrail connecting seat, fixed cover 2 with connect 8 threaded connection of base, assembly efficiency is high, and the installation intensity is low, and is fixed firm, and the commonality is strong, with low costs, simple manufacture, and the aesthetic property is good.

Preferably, in this embodiment, bar 1 with be equipped with bush 3 between the fixed cover 2, the bottom of bush 3 with the up end butt of handrail connecting seat 4, the top inboard of fixed cover 2 is equipped with and is used for supporting the pressure the interior edgewise at bush 3 top to restriction bar 1 axial motion.

Preferably, in this embodiment, the rubber pad 5 and the gasket 6 are sequentially arranged between the inner bottom of the placement groove and the armrest connecting seat 4 from top to bottom, the fixed sleeve 2 is firmly connected with the connecting base 8 through the threads, and the blind hole 9 is prefabricated at the lower end of the outer wall of the fixed sleeve 2 and can be fastened by a special tool. Due to the effect of the rubber pad 5, the grab rail 1 is in a flexible connection mode, a 2mm gap is reserved between the top of the lower cavity of the fixed sleeve 2 and the top of the connecting base 8, axial flexible movement of the grab rail 1 is achieved, and abnormal sound is effectively reduced.

Preferably, in this embodiment, the bottom of the installation groove is provided with a bolt installation groove penetrating through the connection base 8, and a bolt 7 used for installing the connection base 8 on the vehicle body underframe is arranged in the bolt installation groove, so as to improve the appearance.

The installation process comprises the following steps: the first step is as follows: the connecting base 8 is fixed with the chassis of the vehicle body: the circular outer wall of the connecting base 8 is prefabricated with external threads so as to realize the internal thread connection with the fixing sleeve 2. A counter bore is formed in the placing groove of the connecting base 8 in advance and matched with the inner hexagon bolt 7, during installation, a corresponding installation bottom hole is drilled on the vehicle body bottom frame by utilizing an installation through hole prefabricated by the connecting base 8 and is tapped, the connecting base 8 is aligned to the installation hole, and then the fixing is firm by using an inner hexagon wrench. The two hexagon socket head cap screws 7 are all arranged in the mounting grooves of the connecting base 8, so that the appearance is improved.

The second step is that: placing a gasket 6 and a rubber gasket 5: a gasket 6 and a rubber pad 5 are sequentially arranged in the mounting groove of the connecting base 8. The rubber pad 5 is arranged between the gasket 6 and the armrest connecting seat 4, so that the structural defect of fracture or serious deformation can be effectively prevented.

The third step: placing the fixing sleeve 2 and the bush 3: the fixed sleeve 2 and the bush 3 are sequentially penetrated through the grab bar 1.

The fourth step: pre-provided handrail connecting seat 4: the bottom ends of the handrail connecting seat 4 and the handrail rod 1 are respectively prefabricated with external threads and internal threads, and the handrail connecting seat 4 and the bottom end of the handrail rod 1 are firmly screwed by the threads.

Note: the third step and the fourth step are pre-assembled by a manufacturer, and after the parts are delivered, a workshop operator only needs to fixedly connect the fixed sleeve 2 and the connecting base 8 through threads, so that the operation is simple, and the assembly beat of the production line is improved; if the length of the grab rail 1 is out of tolerance, the workshop can trim the length of the end of the grab rail according to the actual situation, and the internal thread of the bottom end of the grab rail 1 is reserved with a trimming length of 10 mm.

The fifth step: the fixed sleeve 2 is connected with a connecting base 8, and the handrail connecting seat 4 is arranged on the rubber pad 5. The lower end of the fixed sleeve 2 is prefabricated with internal threads which are connected with the connecting base 8 in a matching way. The fixed sleeve 2 drives the bush 3 to prop downwards on the upper end surface of the handrail connecting seat 4 so as to limit the axial movement of the handrail rod 1. Fixed cover 2 and the firm fixed cover 2 outer wall lower extreme of being connected base 8 threaded connection are prefabricated with blind hole 9, can form a complete set specialized tool fasten, because the effect of rubber pad 5, bar 1 presents the flexonics mode, the top of fixed cover 2 lower cavity leaves the 2mm clearance with the top of being connected base 8, 1 axial flexible motion of bar has been realized, effectively reduce the abnormal sound, bar 1 with be connected base 8 connection structure, only used two hexagon socket head cap screw 7, fixed cover 2 installation back, no bolt 7 exposes outside, in order to promote the whole aesthetic property of part. The grab rail 1 and the connecting base 8 are both fixed by adopting threaded connection, so that the labor intensity of assembly is reduced, and the connection firmness is improved.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. 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 description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An armrest base, comprising:

a hollow bar (1) for fixing connection base (8) and vertical setting on automobile body chassis, connect base (8) and be cylindricly, the top of connecting base (8) is equipped with the arrangement groove, the arrangement inslot is equipped with handrail connecting seat (4), the lower part setting of handrail connecting seat (4) is in the arrangement inslot, the upper portion setting of handrail connecting seat (4) is in bar (1) lower part, just the upper portion of handrail connecting seat (4) with the bottom threaded connection of bar (1), bar (1) overcoat is equipped with fixed cover (2), be equipped with in fixed cover (2) and be used for with connecting seat (4) support and press boss structure in the arrangement groove, the lower part inboard of fixed cover (2) with the outer wall threaded connection of connecting base (8).

2. The armrest base according to claim 1, wherein a bushing (3) is disposed between the armrest rod (1) and the fixed sleeve (2), a bottom end of the bushing (3) abuts against an upper end surface of the armrest connecting seat (4), and an inner edge for abutting against a top end of the bushing (3) is disposed on an inner side of a top end of the fixed sleeve (2).

3. The armrest base according to claim 1, wherein a rubber pad (5) and a gasket (6) are sequentially arranged between the inner bottom of the seating groove and the armrest connecting seat (4) from top to bottom.

4. The armrest base according to claim 1, characterized in that the bottom of the armrest rod (1) is provided with an internal thread, and the upper part of the armrest connecting seat (4) is provided with an external thread which is matched and connected with the internal thread.

5. The armrest base according to claim 1, characterized in that the lower portion of the fixing sleeve (2) is provided with an internal thread, and the connecting base (8) is provided with an external thread which is in fit connection with the internal thread.

6. The armrest base according to any one of claims 1-5, characterized in that the inner bottom of the seating groove is provided with a bolt installation groove penetrating the connection base (8), and a bolt (7) for installing the connection base (8) on the vehicle body underframe is arranged in the bolt installation groove.

7. The handrail base according to any one of claims 1 to 5, characterized in that the outer wall of the fixing sleeve (2) is provided with blind holes (9) for easy mounting and dismounting.