Insulating support for bottom of civil foundation structure of platform door

Abstract

The utility model relates to an insulating support for the bottom of a civil foundation structure of a platform door, which belongs to the field of road traffic platform doors, and adopts the technical scheme that an arc-shaped embedded part and an embedded bottom plate are respectively arranged on a box body platform plate and a supporting column, and sealing covers are arranged on the peripheries of the arc-shaped embedded part and the embedded bottom plate; the arc-shaped embedded part, the embedded bottom plate and the sealing cover form a closed cavity; an upper support, an insulation assembly and a lower support are sequentially arranged between the arc-shaped embedded part of the closed cavity and the embedded bottom plate, the insulation assembly comprises an upper flange plate and a lower flange plate, an insulation pad is arranged between the upper flange plate and the lower flange plate, and the upper flange plate and the lower flange plate are connected through a fastening bolt and a fastening nut. Insulating bushes are arranged between the fastening bolts and the upper flange plate and between the fastening bolts and the lower flange plate. According to the insulation support, the spherical support is used for bearing movement in multiple directions, extrusion force borne by the insulation pad in the using process is reduced, and the service life of the insulation pad is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of road traffic, and in particular relates to an insulating support used at the bottom of a civil construction foundation structure of a platform door. Background Art

[0002] Most of the existing subway trains use a DC power supply mode. In this power supply mode, in order to prevent stray current from electrochemically corroding underground pipelines and steel structures in station buildings, the train running rails, which also serve as return rails, are insulated from the ground. There may be a potential difference between the running rails and the ground, so there is a potential difference between the platform door and the train that poses a safety hazard to passengers. If a passenger touches the platform door and the train door at the same time, it may cause safety injuries.

[0003] In order to avoid the above situation, existing subway operations will add insulation measures. The commonly used insulation measure is equipment insulation, that is, the upper telescopic insulating sleeve is used to connect the full-height platform door with the civil top beam, and the lower support is added with an insulating pad\plate installation scheme. This equipment insulation method often has problems with the failure of the door base insulation and the platform board insulation layer during use. In order to change this situation, the applicant has designed a civil foundation insulation method, which uses insulating supports to insulate and isolate the box-type platform board and the supporting columns, so that the box-type platform board and the platform doors installed on it are insulated from the station ground as a whole, providing passengers with a safer and overall insulated waiting platform. The insulation failure points are greatly reduced, and after implementation, it will not be affected by on-site construction and the human environment.

[0004] However, during use, the insulating pads in the existing insulating supports bear the weight of the platform door structure, the weight of passengers in the waiting area, and the weight of the box beams, and are subject to relatively high pressure, which places high requirements on the material of the insulating pads, and invisibly increases the cost of the insulating pads. In addition, during use, the existing insulating supports will slide in multiple directions, and long-term multi-directional extrusion deformation will accelerate the failure of the insulating pads and affect the service life of the insulating pads. In addition, since the box beams are prefabricated and the box beam pillars on site are cast on site, the uneven installation surface causes uneven horizontal force on the insulating pads. In addition, the heights of multiple pillars are inconsistent, and the thickness of the insulating pads cannot be adjusted on site. The only solution is to add pads at the joints, which makes construction very inconvenient. Utility Model Content

[0005] In view of the problems existing in the existing insulating supports, the utility model proposes an insulating support for the bottom of the civil foundation structure of the platform door. The insulating support utilizes a spherical support to withstand multi-directional movement, reduces the extrusion force on the insulating pad during use, extends the service life of the insulating pad, and at the same time provides a height adjustment mechanism to facilitate height adjustment during on-site installation.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: an insulating support for the bottom of the civil foundation structure of a platform door, comprising a box platform plate and a support column, an arc-shaped embedded part is arranged below the box platform plate, an embedded bottom plate is fixedly arranged above the support column, and a sealing cover is arranged around the arc-shaped embedded part and the embedded bottom plate, and the arc-shaped embedded part, the embedded bottom plate and the sealing cover form a closed cavity;

[0007] An upper support, an insulating assembly and a lower support are sequentially arranged between the arc-shaped embedded parts and the embedded bottom plate of the closed cavity. The insulating assembly includes an upper flange and a lower flange. The upper flange and the lower flange are respectively connected to the upper support and the lower support. An insulating gasket is arranged between the upper flange and the lower flange. The upper flange and the lower flange are connected by fastening bolts and fastening nuts. Insulating bushings are arranged between the fastening bolts and the upper flange and the lower flange.

[0008] Furthermore, the arc-shaped embedded parts are fixedly connected to the box platform plate by anchor bolts, and the embedded bottom plate is fixedly connected to the support column by anchor bolts.

[0009] Furthermore, the top surface of the upper support is a support ball head that matches the arc-shaped embedded part, and the lower part of the support ball head is a hollow cylinder, and the outer side of the hollow cylinder is provided with an adjustment thread connected to the upper flange.

[0010] Furthermore, the lower support includes a base, and the top of the base is a hollow cylinder. The outer side of the hollow cylinder is provided with an adjustment thread connected to the upper flange, and the outer side of the hollow cylinder is provided with an adjustment thread connected to the lower flange. The threads are in the same direction, that is, when the upper and lower flanges are rotated, the height of the entire insulating support can be adjusted.

[0011] Furthermore, a slide plate and tetrafluoroethylene shock-absorbing rubber are arranged between the lower support and the embedded bottom plate, the embedded bottom plate is provided with a groove, and the slide plate and tetrafluoroethylene shock-absorbing rubber are arranged in the groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the insulating support of the utility model insulates the box-type platform plate and the platform door installed thereon from the station ground as a whole, completely solving the problems of insulation failure of the platform plate and insulation failure of the platform door, double failure of insulation, and potential safety hazards of electric shock to passengers caused by water stains and the like on the platform layer during later operation.

[0013] In addition, the insulating pad of the utility model uses the upper flange and the lower flange to fix the insulating pad. During use, the insulating pad will not slide left and right and will not be squeezed and deformed, which greatly prolongs the service life of the insulating support.

[0014] In addition, the hollow body and flange of the utility model are provided with adjustment threads, which can be adjusted within a certain range according to the height of the support column on site during installation, and the operation is simple and convenient.

[0015] The utility model adopts a double insulation scheme, that is, an insulating pad and an insulating bushing are used between the upper and lower flanges, and polytetrafluoroethylene shock-absorbing rubber with insulating properties is also used between the slide plate and the embedded bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0018] 1 is the box platform plate, 2 is the support column, 3 is the arc embedded part, 4 is the embedded bottom plate, 5 is the sealing cover, 6 is the upper support, 61 is the support ball head, 7 is the insulating component, 71 is the upper flange, 72 is the lower flange, 73 is the insulating pad, 74 is the fastening bolt, 75 is the fastening nut, 76 is the insulating bushing, 8 is the lower support, 81 is the base, 9 is the anchor bolt, 10 is the slide plate, and 11 is the polytetrafluoroethylene shock-absorbing rubber. DETAILED DESCRIPTION

[0019] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so as to fully understand and implement the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects.

[0020] An insulating support for the bottom of the civil foundation structure of a platform door. When in use, the insulating support of the utility model is installed between a box platform plate 1 and a support column 2 to insulate the box platform plate 1 and the support column 2, so that the box platform plate and the platform door installed thereon are integrally insulated from the station ground, providing passengers with a safer, integrally insulated waiting platform.

[0021] like Figure 1 As shown, the structure of the insulating support includes: an arc-shaped embedded part 3 fixed below the box platform plate 1 and an embedded bottom plate 4 fixed above the support column 2, and a sealing cover 5 is arranged around the arc-shaped embedded part 3 and the embedded bottom plate 4, and the arc-shaped embedded part 3, the embedded bottom plate 4 and the sealing cover 5 form a closed cavity. The closed cavity can play a role in dustproof and waterproof, prolong the working time of the insulating pad 73, and prevent it from failing.

[0022] The arc-shaped embedded part 3 is fixedly connected to the box platform plate 1 by anchor bolts 9, and the embedded bottom plate 4 is fixedly connected to the support column 2 by anchor bolts 9. When the box platform plate 1 and the support column 2 are cast, the anchor bolts 9 are embedded in the concrete, and then the arc-shaped embedded part 3 and the embedded bottom plate 4 are fixed respectively by the embedded anchor bolts 9.

[0023] An upper support 6, an insulating assembly 7 and a lower support 8 are sequentially arranged between the arc-shaped embedded part 3 and the embedded bottom plate 4 of the closed cavity. The insulating assembly 7 includes an upper flange 71 and a lower flange 72. The upper flange 71 and the lower flange 72 are connected to the upper support 6 and the lower support 8 respectively. An insulating pad 73 is arranged between the upper flange 71 and the lower flange 72. The upper flange 71 and the lower flange 72 are connected by a fastening bolt 74 and a fastening nut 75. An insulating bushing 76 is arranged between the fastening bolt 74 and the upper flange 71 and the lower flange 72. The insulating bushing 76 isolates the fastening bolt 74 from the upper flange 71 and the lower flange 72 to prevent the fastening bolt 74 from electrically connecting the upper flange 71 and the lower flange 72.

[0024] The insulating pad 73 is installed between the upper and lower flanges 72 and is fixed by tightening bolts 74. During the movement of the insulating support, the insulating pad 73 will not be squeezed and deformed, thereby extending the service life of the insulating pad 73 and the service life of the entire insulating support.

[0025] The existing upper support 6 is a planar structure, but the box platform board 1 cannot be guaranteed to be absolutely horizontal during installation. When the box platform board 1 is tilted, the contact surface of the upper support 6 will be reduced, which will further squeeze the insulating pad 73, causing the insulating pad 73 to fail. Therefore, the utility model sets the top surface of the upper support 6 to a support ball head 61 that matches the arc-shaped embedded part 3. The lower part of the support ball head 61 is a hollow cylinder, and the outer side of the hollow cylinder is provided with an adjustment thread connected to the upper flange 71. The support ball head 61 can adapt to the inclination of the box platform board 1 in a small range, provide sufficient contact surface for the box platform, and also prevent the insulating pad 73 from being squeezed and failed.

[0026] In addition, in order to improve the shock absorption and electrical isolation effect of the entire insulating support, a slide plate 10 and a tetrafluoroethylene shock-absorbing rubber 11 are arranged between the lower support 8 and the embedded bottom plate 4, and the embedded bottom plate 4 is provided with a groove, and the slide plate 10 and the tetrafluoroethylene shock-absorbing rubber 11 are arranged in the groove. The tetrafluoroethylene shock-absorbing rubber 11 can provide a certain shock absorption effect, and at the same time it can also play a certain electrical isolation effect, providing a double guarantee for the isolation performance of the insulating support.

[0027] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An insulating support for the bottom of a platform door civil foundation structure, comprising a box platform plate (1) and a support column (2), characterized in that: An arc-shaped embedded part (3) is arranged below the box platform plate (1), an embedded bottom plate (4) is fixedly arranged above the support column (2), and a sealing cover (5) is arranged around the arc-shaped embedded part (3) and the embedded bottom plate (4), so that the arc-shaped embedded part (3), the embedded bottom plate (4) and the sealing cover (5) form a closed cavity; An upper support (6), an insulating assembly (7) and a lower support (8) are sequentially arranged between an arc-shaped embedded part (3) and an embedded bottom plate (4) of a closed cavity. The insulating assembly (7) comprises an upper flange (71) and a lower flange (72). The upper flange (71) and the lower flange (72) are connected to the upper support (6) and the lower support (8) respectively. An insulating pad (73) is arranged between the upper flange (71) and the lower flange (72). The upper flange (71) and the lower flange (72) are connected by a fastening bolt (74) and a fastening nut (75). An insulating bushing (76) is arranged between the fastening bolt (74) and the upper flange (71) and the lower flange (72).

2. The insulating support for the bottom of the platform door civil construction foundation structure according to claim 1, characterized in that: The arc-shaped embedded part (3) is fixedly connected to the box platform plate (1) through anchor bolts (9), and the embedded base plate (4) is fixedly connected to the support column (2) through anchor bolts (9).

3. The insulating support for the bottom of the platform door civil construction foundation structure according to claim 1, characterized in that: The top surface of the upper support (6) is a support ball head (61) matching the arc-shaped embedded part (3), and the lower part of the support ball head (61) is a hollow cylinder, and the outer side of the hollow cylinder is provided with an adjustment thread connected to the upper flange (71).

4. The insulating support for the bottom of the civil construction foundation structure of a platform door according to claim 3, characterized in that: The lower support (8) comprises a base (81), the upper part of the base (81) is a hollow cylinder, and the outer side of the hollow cylinder is provided with an adjustment thread connected to the lower flange (72).

5. The insulating support for the bottom of the civil construction foundation structure of a platform door according to claim 4, characterized in that: A slide plate (10) and a tetrafluoroethylene shock-absorbing rubber (11) are arranged between the lower support (8) and the embedded bottom plate (4); the embedded bottom plate (4) is provided with a groove, and the slide plate (10) and the tetrafluoroethylene shock-absorbing rubber (11) are arranged in the groove.

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