CN219491531U

CN219491531U - Subway tunnel interval handrail fixing frame and handrail butt joint structure based on embedded sliding groove

Info

Publication number: CN219491531U
Application number: CN202320233545.1U
Authority: CN
Inventors: 王龙; 吴群辉; 张良; 胡楠; 权威; 关海波; 伍家林
Original assignee: China Communications Information Technology Group Co ltd
Current assignee: China Communications Information Technology Group Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-08-08
Anticipated expiration: 2033-02-16

Abstract

The utility model discloses a subway tunnel section handrail fixing frame based on an embedded sliding groove and a handrail butt joint structure, which comprise a fixing frame body, wherein the fixing frame body comprises an upper connecting plate and a lower connecting plate, an upper mounting plate is arranged above the left side of the upper connecting plate, a lower mounting plate is arranged below the left side of the lower connecting plate, the right sides of the upper connecting plate and the lower connecting plate are connected through an opening sleeve for installing the handrail, and connecting assemblies for realizing sliding fit with the embedded sliding groove on the subway tunnel wall are arranged on the upper connecting plate and the lower connecting plate. According to the utility model, the structure of the handrail fixing frame is optimized again, the traditional mounting structure of the expansion bolt is replaced, and through matching with the embedded sliding groove on the subway tunnel wall, the reliable mounting of the handrail fixing frame can be realized, the adaptability can be adjusted according to the actual mounting height of the handrail, the mounting quality is ensured, the mounting efficiency is improved, and the practicability is strong.

Description

Subway tunnel interval handrail fixing frame and handrail butt joint structure based on embedded sliding groove

Technical Field

The utility model relates to the technical field of rail transit supporting facilities, in particular to a subway tunnel section handrail fixing frame and handrail butt joint structure based on pre-buried sliding grooves.

Background

For the handrail of the tunnel railing in the subway section, the handrail needs to be installed on the tunnel wall by using a fixing frame, and at present, most construction units are installed by the following methods: firstly, measuring and positioning the position of a fixing frame according to data, then punching according to the preset position of the fixing frame, then implanting an expansion bolt into the punched hole, and finally realizing the installation of the fixing frame by utilizing the expansion bolt, wherein the structure of the fixing frame in the method can be referred to the specification of the utility model with the publication number of CN 203730060U.

With respect to the structure of the above-described mount, there are the following disadvantages:

1. the position of the fixing frame cannot be adjusted at will, that is, after the initial position of the fixing frame is determined, the position of the fixing frame of the railing armrest is relatively fixed after the implantation of the expansion bolts is completed, so that inconvenience is brought to the installation of the railing armrest;

2. because the position of the expansion bolt can not be changed after the expansion bolt is fixed, the requirement on the design positioning precision is relatively high before installation, reworking is caused by position deviation or steel bar collision after the installation is completed, the expansion bolt is installed, and the working efficiency is reduced;

3. the repeated disassembly and modification or the movement of the fixing frame can influence the strength of the tunnel wall, reduce the service life of the tunnel wall and bring certain potential safety hazards.

In view of the foregoing, there is a need for developing a handrail fixing frame that is more convenient for handrail installation.

Disclosure of Invention

The utility model aims to avoid the defects of the prior art and provides a subway tunnel section handrail fixing frame and a handrail butt joint structure based on an embedded sliding groove, thereby effectively solving the defects in the prior art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a subway tunnel interval handrail mount based on pre-buried spout, includes the mount body, the mount body includes upper junction plate and lower connecting plate, and the left side top of upper junction plate is provided with the mounting panel, and the left side below of lower connecting plate is provided with down the mounting panel, and upper junction plate and the right side of lower connecting plate are realized being connected through the opening cover that is used for installing the handrail, all be provided with on upper junction plate and the lower connecting plate and be used for realizing sliding fit's coupling assembling with pre-buried spout on the subway tunnel wall, coupling assembling includes the screw rod, and the screw rod is fixed in one side of keeping away from the opening cover and is provided with rectangular shape stopper, and the screw rod is being close to one side spiro union of opening cover and has lock nut.

Further, the upper connecting plate, the lower connecting plate, the upper mounting plate, the lower mounting plate and the opening sleeve are integrally formed.

Further, the upper connecting plate, the lower connecting plate, the upper mounting plate, the lower mounting plate and the opening sleeve are made of a whole stainless steel plate after being punched and bent.

Further, the upper mounting plate and the lower mounting plate are respectively provided with an upper mounting hole and a lower mounting hole by matching with the screw rods.

Further, two opening sleeves are arranged in parallel, and an operation gap is arranged between the two opening sleeves.

The handrail butt joint structure comprises the subway tunnel section handrail fixing frame based on the embedded sliding groove.

Further, a first grab bar is clamped in one of the opening sleeves, a second grab bar is clamped in the other opening sleeve, the end parts of the first grab bar and the second grab bar extend into the operation gap, and a connecting sleeve for realizing sealing connection of the first grab bar and the second grab bar is detachably arranged in the operation gap.

Further, sealing rings are arranged on the inner sides of the connecting sleeves respectively matched with the first grab rail and the second grab rail.

Further, the end part of the first grab bar is provided with a first annular slot in a matched connection sleeve, the end part of the second grab bar is provided with a second annular slot in a matched connection sleeve, gaps are formed between the end face of the connection sleeve and the side walls of the first annular slot and the second annular slot, and the first grab bar and the second grab bar support are also provided with gaps.

The technical scheme of the utility model has the following beneficial effects: according to the utility model, the structure of the handrail fixing frame is optimized again, the traditional mounting structure of the expansion bolt is replaced, and through matching with the embedded sliding groove on the subway tunnel wall, the reliable mounting of the handrail fixing frame can be realized, the adaptability can be adjusted according to the actual mounting height of the handrail, the mounting quality is ensured, the mounting efficiency is improved, and the practicability is strong.

Drawings

Fig. 1 is a schematic perspective view of a subway tunnel section handrail fixing frame based on an embedded chute according to an embodiment of the utility model;

FIG. 2 is a schematic view of another view angle structure of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

fig. 4 is a use state diagram of a subway tunnel section handrail fixing frame based on an embedded chute according to an embodiment of the utility model;

FIG. 5 is a schematic view of the docking structure of the armrest of the present utility model;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is an enlarged view of a portion of FIG. 6 at A;

fig. 8 is an exploded view of fig. 5.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1-3, the metro tunnel section handrail fixing frame based on the embedded sliding groove in this embodiment comprises a fixing frame body, the fixing frame body 1 comprises an upper connecting plate 101 and a lower connecting plate 102, an upper mounting plate 103 is arranged above the left side of the upper connecting plate 101, a lower mounting plate 104 is arranged below the left side of the lower connecting plate 102, the upper connecting plate 101 and the right side of the lower connecting plate 102 are connected through an opening sleeve 105 for mounting the handrail, the upper connecting plate 101, the lower connecting plate 102, the upper mounting plate 103, the lower mounting plate 104 and the opening sleeve 105 are made by punching and bending a whole stainless steel plate, the whole structure strength is high, deformation is not easy, batch production is facilitated, and the upper connecting plate 101 and the lower connecting plate 102 are arranged in parallel, and the upper connecting plate 103 and the upper connecting plate 101 and the lower mounting plate 104 and the lower connecting plate 102 are vertically arranged.

The upper connecting plate 101 and the lower connecting plate 102 are both provided with connecting components for realizing sliding fit with the embedded sliding grooves on the subway tunnel wall, the connecting components comprise a screw rod 2, one side of the screw rod 2 far away from an opening sleeve 105 is fixedly provided with a strip-shaped limiting block 201, one side of the screw rod 2 close to the opening sleeve 105 is in threaded connection with a lock nut 3, a flat gasket 8 and a spring washer 9 are further sleeved on the screw rod 2, a reaction force can be applied to the lock nut 3 by the aid of the spring washer 9, a retaining effect is achieved, the flat gasket 8 is arranged, and the spring washer 9 can be prevented from scratching the upper mounting plate 103 and the lower mounting plate 104.

The upper mounting plate 103 and the lower mounting plate 104 are respectively provided with an upper mounting hole 1031 and a lower mounting hole 1041 in a matched manner by the screw rod 2, wherein the upper mounting hole 1031 and the lower mounting hole 1041 can be long slot holes arranged along the vertical direction, and due to the fact that the wall of the subway tunnel is arc-shaped, the adaptive mounting of the connecting assembly can be better realized through the mode, and the rationality of the structure is ensured.

The two split sleeves 105 are arranged in parallel, and an operation gap 106 is arranged between the two split sleeves 105.

In the utility model, the installation state of the handrail fixing frame is shown in fig. 4, the subway tunnel wall 10 is provided with the embedded sliding groove 11, the embedded sliding groove 11 is integrally arranged along the vertical direction and is matched with the arc-shaped structure of the subway tunnel wall, so that the embedded sliding groove 11 is attached to the surface of the embedded sliding groove 11 after being installed, when the handrail fixing frame is installed, firstly, the screw rod 2 is adjusted in angle, the strip-shaped limiting block 201 is vertically arranged, in fig. 2, the strip-shaped limiting block 201 is transversely arranged, so that the strip-shaped limiting block 201 is rotated by 90 degrees on the basis of fig. 2, in this way, the strip-shaped limiting block 201 can be arranged in the embedded sliding groove 11, then utilize opening cover 105 clamp post handrail and penetrate in mounting hole 1031 and the mounting hole 1041 down with screw rod 2, afterwards twist lock nut 3 on screw rod 2 in advance, do not need the locking, through reciprocate the handrail this moment, can make rectangular shape stopper 201 realize sliding up and down in pre-buried spout 11, and then realize the adjustment to handrail height position, after satisfying the requirement, screw up lock nut 3 and accomplish the installation of mount, wherein at lock nut 3 in-process of screwing up, rectangular shape stopper 201 realizes the screens with pre-buried spout 11's inner wall, has realized rectangular shape stopper 201's auto-lock promptly, in addition, coupling assembling can adopt the common T shape bolt in market.

As shown in fig. 5-8, the handrail docking structure according to the present embodiment, including the handrail fixing frame of the subway tunnel section based on the embedded sliding groove, is unavoidable to form a joint between the handrail rods due to the limited length of the single handrail rod, and the conventional connection between the handrail rods is realized by another connection member, which is limited by the influence of the installation precision and the manufacturing precision, and often results in the situation of incomplete coaxiality between the adjacent handrail rods, which results in troublesome and labor-wasting materials when the handrail rods are docked by using the conventional connection member, in order to solve the above problems, the following structure is further adopted in the present utility model:

the first grab bar 4 is clamped in one of the opening sleeves 105, the second grab bar 5 is clamped in the other opening sleeve 105, the end parts of the first grab bar 4 and the second grab bar 5 extend into the operation gap 106, the connecting sleeve 6 used for realizing the sealing connection of the first grab bar 4 and the second grab bar 5 is detachably arranged in the operation gap 106, the sealing rings 7 are arranged on the inner sides of the connecting sleeve 6 respectively matched with the first grab bar 4 and the second grab bar 5, impurities such as dust can be prevented from entering the grab bars, internal corrosion is prevented from being generated, and the service life of the handrail is prolonged.

The end portion of the first handrail rod 4 is provided with the first annular slot 401 in cooperation with the connecting sleeve 6, the end portion of the second handrail rod 5 is provided with the second annular slot 501 in cooperation with the connecting sleeve 6, gaps are formed between the end face of the connecting sleeve 6 and the side walls of the first annular slot 401 and the second annular slot 501, the first handrail rod 4 and the second handrail rod 5 are also provided with gaps, and by arranging the two gaps, when the length of the handrail rod changes due to thermal barrier cold shrinkage and the like, the adjacent handrail rods can be prevented from being extruded, meanwhile, certain relative displacement is allowed to be generated between the connecting sleeve 6 and the handrail rod, and the overall strength is quite reasonable.

By adopting the structure, not all fixing frames are simultaneously connected with two grab bars, when the fixing frames fix one grab bar, namely, the two opening sleeves 5 are clamped on one grab bar, when the fixing frames fix the two grab bars, the connecting sleeve 6 is sleeved on one grab bar, then the grab bar penetrates into the opening sleeve 5 from one side, the connecting sleeve 6 is positioned in the operation gap 106, then the other grab bar needing to be abutted penetrates into the opening sleeve 5 from the other side, the second grab bar is sleeved with the connecting sleeve 6, the relative positions between the two grab bars and the connecting sleeve 6 are adjusted, and then the subsequent height adjustment and fixing work of the handrails are carried out.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. Subway tunnel interval handrail mount based on pre-buried spout, including the mount body, its characterized in that: the fixing frame body comprises an upper connecting plate and a lower connecting plate, an upper mounting plate is arranged above the left side of the upper connecting plate, a lower mounting plate is arranged below the left side of the lower connecting plate, the upper connecting plate is connected with the right side of the lower connecting plate through an opening sleeve for mounting handrails, connecting components which are used for realizing sliding fit with embedded sliding grooves on the subway tunnel wall are arranged on the upper connecting plate and the lower connecting plate, the connecting components comprise screws, one side of each screw, far away from the opening sleeve, is fixedly provided with a strip-shaped limiting block, and one side of each screw, close to the opening sleeve, is connected with a locking nut in a threaded manner.

2. The subway tunnel section handrail fixing frame based on the embedded sliding groove according to claim 1, wherein: the upper connecting plate, the lower connecting plate, the upper mounting plate, the lower mounting plate and the opening sleeve are integrally formed.

3. The subway tunnel section handrail fixing frame based on the embedded sliding groove according to claim 2, wherein: the upper connecting plate, the lower connecting plate, the upper mounting plate, the lower mounting plate and the opening sleeve are manufactured by punching and bending a whole stainless steel plate.

4. The subway tunnel section handrail fixing frame based on the embedded sliding groove according to claim 1, wherein: the upper mounting plate and the lower mounting plate are respectively provided with an upper mounting hole and a lower mounting hole by matching with screw rods.

5. The subway tunnel section handrail fixing frame based on the embedded sliding groove according to any one of claims 1 to 4, wherein: the two opening sleeves are arranged in parallel, and an operation gap is arranged between the two opening sleeves.

6. Armrest butt joint structure, its characterized in that: comprising the pre-buried chute-based subway tunnel section handrail fixing frame of claim 5.

7. The armrest docking structure as set forth in claim 6, wherein: the opening sleeve is characterized in that a first grab bar is clamped in the opening sleeve, a second grab bar is clamped in the opening sleeve, the end parts of the first grab bar and the second grab bar extend into the operation gap, and a connecting sleeve for realizing sealing connection of the first grab bar and the second grab bar is detachably arranged in the operation gap.

8. The armrest docking structure as set forth in claim 7, wherein: and sealing rings are respectively arranged on the inner sides of the connecting sleeves in a matched manner with the first grab rail and the second grab rail.

9. The armrest docking structure as set forth in claim 7, wherein: the end part of the first grab bar is provided with a first annular slot in a matched connection sleeve, the end part of the second grab bar is provided with a second annular slot in a matched connection sleeve, gaps are formed between the end face of the connection sleeve and the side walls of the first annular slot and the second annular slot, and the first grab bar and the second grab bar support are also provided with gaps.