CN210852166U

CN210852166U - Joint for handrail

Info

Publication number: CN210852166U
Application number: CN201921564535.6U
Authority: CN
Inventors: 郑烈军; 杨继发; 梅进明
Original assignee: Xiamen Golden Dragon Bus Co Ltd
Current assignee: Xiamen Golden Dragon Bus Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-06-26
Anticipated expiration: 2029-09-19

Abstract

The utility model provides a joint for handrail relates to handrail equipment technical field. Wherein the joint is used for connecting a first handrail rod arranged transversely and a second handrail rod arranged vertically. Specifically, the joint comprises: the main body mechanism comprises a base provided with a mounting groove, an expansion piece arranged in the mounting groove and provided with an expansion groove, a rubber sleeve sleeved on the expansion piece, and an expansion nut arranged in the expansion groove; the first grab rail sleeve is inserted into the rubber sleeve and clamped between the rubber sleeve and the base. And the rear cover is arranged on the base and clamped with the base to form a connecting channel for the second handrail rod to pass through. And the bolt penetrates through the rear cover, the second grab rail, the base and the expansion piece and is in threaded connection with the expansion nut. The bolt can drive the expansion piece to expand outwards through the expansion nut so as to enable the rubber sleeve to be expanded outwards, and the first grab rail is clamped between the rubber sleeve and the side wall of the mounting groove.

Description

Joint for handrail

Technical Field

The utility model relates to a handrail equipment technical field particularly, relates to a connect for handrail.

Background

An armrest for a vehicle is a common device that is often mounted on a vehicle, such as a passenger car or a bus, for a passenger to grasp.

At present, the handrails mounted on a passenger car or a bus are usually locked on a handrail rod by a plurality of bolts clasped by a left metal piece and a right metal piece. However, in the prior art, the problem that the handrail is easy to loosen in the long-term use process exists, and the installation is inconvenient due to the fact that bolts are excessively relied on. In addition, the metal piece needs to have a larger wall thickness to meet the requirement of strength, and the production cost is higher. In view of the above, the inventors of the present invention have made a study of the prior art and then have made the present application.

SUMMERY OF THE UTILITY MODEL

The utility model provides a joint for handrail aims at improving prior art, the easy not hard up problem of handrail.

In order to solve the technical problem, the utility model provides a connect for handrail for connect the first bar of transversal arrangement and the second bar of vertical layout, connect and contain:

the main body mechanism comprises a base provided with a mounting groove, an expansion piece which is arranged in the mounting groove and provided with an expansion groove, a rubber sleeve sleeved on the expansion piece, and an expansion nut arranged in the expansion groove; the first grab rail sleeve is inserted into the rubber sleeve and clamped between the rubber sleeve and the base;

a rear cover disposed on the base and sandwiched with the base into a connecting passage for the second grab bar to pass through;

a bolt passing through the rear cover, the second grab rail, the base, and the expansion member and threadedly coupled to the expansion nut;

the bolt can drive the expansion piece to expand outwards through the expansion nut so as to expand the rubber sleeve outwards, and the first grab rail is clamped between the rubber sleeve and the side wall of the mounting groove.

As a further optimization, the rubber sleeve is a geometric body which is sleeve-shaped and made of rubber, and the side surface of the rubber sleeve is provided with a plurality of movable petals which can be outwards unfolded.

As further optimization, the inner side wall and the outer side wall of the rubber sleeve are respectively provided with a first clamping tooth and a second clamping tooth.

As a further optimization, the side wall of the rubber sleeve is provided with a limiting outer edge used for limiting the first grab rail.

Preferably, the expansion piece is made of metal, and multiple expansion lobes capable of being expanded outwards are arranged on the side surface of the expansion piece.

As a further optimization, the base is provided with an arc-shaped part matched with the second grab rail, and the rear cover is an arc-shaped geometric body matched with the arc-shaped part.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

the utility model discloses a joint, the first handrail pole of connection transverse arrangement and the second handrail pole of vertical arrangement that can be reliable convenient. Specifically, when the bolt is rotated, the expansion nut can be driven to move towards the bottom of the expansion groove, the expansion piece is enabled to expand towards two sides, the side wall of the rubber sleeve is forced to be opened towards two sides, and the first grab rail is tightly clamped between the side wall of the rubber sleeve and the side wall of the installation groove. Further, the first grab rail is penetrated by the bolt and is clamped between the base and the rear cover, so that the first grab rail can be firmly clamped between the base and the rear cover. When the first handrail rod and the second handrail rod need to be detached, the bolt can be rotated in the opposite direction and is pulled away from the main body mechanism, so that the expansion piece and the rubber sleeve both contract inwards, and the first handrail rod can be smoothly separated from the mounting groove; when the bolt is pulled away from the main body mechanism, the base and the rear cover can be separated, and the second grab bar can be smoothly taken out.

In the present case, the joint has only adopted a bolt, and the expansion nut is supported the card and is in the expansion tank, consequently has fine shock resistance, guarantees the reliability of joint in long-term use. In addition, because the bolt passes through back lid, second handrail pole, base in proper order to and inflation spare, and threaded connection is in inflation nut, consequently the bolt can play the effect of spacing second handrail pole, lets back lid and base bear the effect that comes from the second handrail pole and diminishes, is convenient for less the wall thickness of back lid and base relevant position. Meanwhile, the connector of the scheme is provided with only one bolt, so that the connector is very convenient to mount. In the actual operation process, the main body mechanism can be assembled together in advance, so that the convenience of installation is further improved, and the efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic axial side view of a joint according to an embodiment of the present invention;

FIG. 2 is a partially exploded view of a joint according to an embodiment of the present invention;

FIG. 3 is an exploded view of a joint according to an embodiment of the present invention;

FIG. 4 is an exploded cross-sectional view of a joint according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a joint according to an embodiment of the present invention;

FIG. 6 is a schematic axial side view of the rubber sleeve and the expansion member according to an embodiment of the present invention;

the labels in the figure are: 1-a first grab rail 1; 2-a second grab rail 2; 3-linker 3; 4-a body mechanism 4; 5-rear cover 5; 6-bolt 6; 7-rubber sleeve 7; 8-expansion nut 8; 9-an expansion element 9; 10-a base 10; 11-arc 11; 12-connecting channel 12; 13-second gripping tooth 13; 14-first gripping tooth 14; 15-expansion tank 15; 16-third gripping tooth 16; 17-mounting groove 17; 18-a movable flap 18; 19-a limiting outer edge 19; 20-expansion flap 20.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more 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; 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 disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1 to 5, in the present embodiment, a joint for a handrail for connecting a first handrail rod 1 arranged horizontally and a second handrail rod 2 arranged vertically comprises:

the main body mechanism 4 comprises a base 10 provided with a mounting groove 17, an expansion piece 9 which is arranged in the mounting groove 17 and is provided with an expansion groove 15, a rubber sleeve 7 sleeved on the expansion piece 9, and an expansion nut 8 arranged in the expansion groove 15; the first grab rail 1 is inserted into the rubber sleeve 7 and clamped between the rubber sleeve 7 and the base 10;

a rear cover 5 disposed on the base 10 and sandwiching a connection passage 12 with the base 10 for passing the second grab bar 2 therethrough;

a bolt 6 passing through the rear cover 5, the second grab bar 2, the base 10, and the expansion member 9 and threadedly coupled to the expansion nut 8;

the bolt 6 can drive the expansion piece 9 to expand outwards through the expansion nut 8, so that the rubber sleeve 7 is expanded outwards, and the first grab bar 1 is clamped between the rubber sleeve 7 and the side wall of the mounting groove 17.

Specifically, when the bolt 6 is rotated, the expansion nut 8 can be driven to move towards the bottom of the expansion groove 15, so that the expansion piece 9 expands towards two sides, the side wall of the rubber sleeve 7 is forced to expand towards two sides, and the first grab rail 1 is tightly clamped between the rubber sleeve 7 and the side wall of the mounting groove 17. Further, the first grab rail 1 is inserted by the bolt 6 and is clamped between the base 10 and the rear cover 5, so that the first grab rail 1 can be firmly clamped between the base 10 and the rear cover 5. When the first grab rail 1 and the second grab rail 2 need to be detached, the bolt 6 can be rotated in the opposite direction and pulled away from the main body mechanism 4, so that the expansion piece 9 and the rubber sleeve 7 are both contracted inwards, and the first grab rail 1 can be smoothly detached from the mounting groove 17; when the bolt 6 is pulled away from the main body mechanism 4, the base 10 and the rear cover 5 can be separated, and the second grab bar 2 can be smoothly taken out.

In this embodiment, only one bolt 6 is used for the joint 3, and the expansion nut 8 is supported and clamped in the expansion groove 15, so that the joint has good shock resistance and ensures the reliability of the joint 3 in a long-term use process. In addition, because the bolt 6 passes through the rear cover 5, the second grab rail 2, the base 10 and the expansion piece 9 in sequence and is in threaded connection with the expansion nut 8, the bolt 6 can play a role of limiting the second grab rail 2, so that the effect that the rear cover 5 and the base 10 bear the second grab rail 2 is reduced, and the wall thickness of the corresponding position of the rear cover 5 and the base 10 is convenient to be reduced. Meanwhile, the joint 3 of the scheme is only provided with one bolt 6, so that the joint 3 is very convenient to mount. In the actual operation process, the main body mechanism 4 can be assembled together in advance, so that the convenience of installation is further improved, and the efficiency is improved.

As shown in fig. 3, 4 and 6, in the present embodiment, the rubber sleeve 7 is a geometric body which is sleeve-shaped and made of rubber, and has a plurality of movable flaps 18 which can be opened outward and are provided on the side surface thereof. The expansion piece 9 is made of metal, and a plurality of expansion lobes 20 capable of expanding outwards are arranged on the side surface of the expansion piece. The specific structures of the expansion flap 20 and the like of the expansion part 9 belong to the prior art, and are not described again.

As shown in fig. 4 and 5, in the present embodiment, the inner side wall and the outer side wall of the rubber cover 7 are provided with first retaining teeth 14 and second retaining teeth 13, respectively. The side wall of the expansion element 9 is provided with third gripping teeth 16 adapted to the first gripping teeth 14. During the operation, the expansion element 9 is well engaged in the interior of the rubber cover 7 by the arrangement of the first engaging tooth 14 and the third engaging tooth 16, while the second engaging tooth 13 is well engaged in the first grab bar 1. In this embodiment, the first fastening tooth 14, the second fastening tooth 13, and the third fastening tooth 16 are all of a barbed convex tooth structure.

As shown in fig. 6, in the present embodiment, the side wall of the rubber sleeve 7 is provided with a position-limiting outer edge 19 for limiting the position of the first grab bar 1. In the specific operation process, the first grab rail 1 inserted into the mounting groove 17 moves forwards and can be abutted against the limiting outer edge 19, so that the function of positioning the first grab rail 1 is achieved.

As shown in fig. 3, in the present embodiment, the base 10 is provided with an arc-shaped portion 11 adapted to the second grab bar 2, and the rear cover 5 is an arc-shaped geometrical body adapted to the arc-shaped portion 11. Through the arrangement, the base 10 and the rear cover 5 can well clamp the second grab rail 2.

Through the embodiment, the joint 3 can be used for reliably and conveniently connecting the first grab rail 1 arranged transversely and the second grab rail 2 arranged vertically, and can ensure the reliable connection of the joint 3 in the long-term use process.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A joint for a handrail for connecting a first handrail rod (1) arranged transversely to a second handrail rod (2) arranged vertically, characterized in that the joint (3) comprises:

the main body mechanism (4) comprises a base (10) provided with a mounting groove (17), an expansion piece (9) which is arranged in the mounting groove (17) and provided with an expansion groove (15), a rubber sleeve (7) sleeved on the expansion piece (9), and an expansion nut (8) arranged in the expansion groove (15); the first grab rail (1) is inserted into the rubber sleeve (7) in a sleeved mode and clamped between the rubber sleeve (7) and the base (10);

a rear cover (5) disposed on the base (10) and sandwiching a connection passage (12) with the base (10) for passing the second grab bar (2);

a bolt (6) passing through the rear cover (5), the second grab bar (2), the base (10), and the expansion member (9) and screwed to the expansion nut (8);

the bolt (6) can drive the expansion piece (9) to expand outwards through the expansion nut (8), so that the rubber sleeve (7) is expanded outwards, and the first grab rail (1) is clamped between the rubber sleeve (7) and the side wall of the mounting groove (17).

2. A joint for a handrail as claimed in claim 1, wherein the rubber sleeve (7) is a geometric body in the shape of a sleeve and made of rubber, and the side of the rubber sleeve (7) is provided with a plurality of movable flaps (18) which can be spread outwards.

3. A joint for a handrail as claimed in claim 2, characterized in that the inner and outer side walls of the gum cover (7) are provided with first (14) and second (13) gripping teeth, respectively.

4. A joint for a handrail according to claim 2, characterised in that the side walls of the glue cover (7) are provided with a stop edge (19) for stopping the first handrail rod (1).

5. A joint for a handrail as claimed in claim 1, characterized in that the expansion element (9) is made of metal and is flanked by a plurality of outwardly expandable expansion flaps (20).

6. A joint for a handrail according to claim 1, characterised in that the base (10) is provided with an arcuate portion (11) adapted to the second handrail rod (2), and the rear cover (5) is of arcuate geometry adapted to the arcuate portion (11).