A bottom support structure of a rail transit platform safety door

Abstract

The application relates to a bottom support structure of a rail transit platform safety door, which comprises a support plate, a support block, an anchor bolt and a fastener. The support plate is provided with a plurality of first waist-shaped holes with long axes parallel to the length direction of the support plate, and the support block is provided with a plurality of second waist-shaped holes with long axes parallel to the width direction of the support plate. The anchor bolt passes through the first waist-shaped holes to fix the support plate to the platform foundation, and the fastener passes through the second waist-shaped holes to connect the support block and the door sill. The structure is designed through the waist-shaped holes in two directions, the position adjustment of the length direction of the support plate and the width direction of the support block is realized, the problem that the safety door installation is not accurately positioned due to the platform construction error is effectively solved, the installation precision and the system reliability are improved, and the service life is prolonged.

Description

Technical Field

[0001] This application relates to the field of platform screen doors for rail transit, and in particular to a bottom support structure for a platform screen door for rail transit. Background Technology

[0002] Platform screen doors in rail transit stations are crucial facilities for ensuring passenger safety. The stability and adjustability of their bottom support structure directly affect the reliability and service life of the entire screen door system. Traditional platform screen door bottom support structures typically use a fixed connection method, directly fixing the support plate to the platform foundation structure with bolts. This structure has the following shortcomings: due to the inherent errors in platform construction and the high positional accuracy requirements of screen door installation, the fixed connection method makes it difficult to perform fine-tuning during installation, leading to inaccurate alignment between the screen door and the track, affecting screen door operation. Utility Model Content

[0003] The purpose of this application is to provide a bottom support structure for a rail transit platform safety door to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A bottom support structure for a rail transit platform safety door includes:

[0006] The support plate has multiple first oblong holes;

[0007] At least one support block is disposed on the support plate, and the support block is provided with a plurality of second oblong holes;

[0008] Multiple anchor bolts are inserted into the first oblong hole to fix the support plate to the platform foundation structure.

[0009] Multiple fasteners are provided, each of which is correspondingly inserted into the mounting hole on the second waist-shaped hole and the threshold, to fix the support block and the threshold in a fixed connection.

[0010] in:

[0011] The long axis of the first oblong hole is parallel to the length direction of the support plate, and is used to adjust the installation position of the support plate along the length direction;

[0012] The long axis of the second oblong hole is parallel to the width direction of the support plate, and is used to adjust the installation position of the support block along the width direction of the support plate.

[0013] Furthermore, there are four first waist-shaped holes, and the four first waist-shaped holes are symmetrically arranged in the four corner areas of the support plate.

[0014] Furthermore, the support block is provided with at least four second waist-shaped holes, which are arranged in an m×n matrix, where m≥2, n≥2, and m and n are both integers.

[0015] Furthermore, there are two support blocks, which are symmetrically arranged at both ends of the support plate along its length.

[0016] Furthermore, it also includes multiple gasket groups, each of which is respectively fitted onto two adjacent anchor bolts and abuts against the lower surface of the support plate.

[0017] Furthermore, the gasket group includes multiple stacked gaskets.

[0018] Furthermore, the gasket is provided with a U-shaped opening groove, the width of which is adapted to the diameter of the anchor bolt rod to form a clearance fit.

[0019] Furthermore, the U-shaped opening groove is provided with guide slopes on both sides, and the guide slopes are inclined along the direction of the opening of the U-shaped opening groove.

[0020] Furthermore, the thickness of the gasket is 1 to 5 mm.

[0021] The technical solutions provided in this application have the following advantages compared with the prior art:

[0022] The bottom support structure of the rail transit platform safety door provided in this application embodiment has a support plate fixed to the platform foundation structure by multiple anchor bolts passing through first oblong holes. The long axis of the first oblong hole is parallel to the length direction of the support plate, allowing the support plate to have a certain amount of movement space in the length direction for position adjustment. A support block is set on the support plate, and multiple fasteners pass through the second oblong holes of the support block and the corresponding mounting holes on the threshold to fix the support block to the threshold. The long axis of the second oblong hole is parallel to the width direction of the support plate, allowing the support block to move and adjust its position in the width direction.

[0023] This application solves the problem of inaccurate installation alignment of safety doors caused by platform construction errors in traditional fixed connections. By using oblong holes in two directions to fine-tune the position of the support plate and support block, the installation accuracy of the safety door is improved, the normal operation of the door is guaranteed, and the reliability and service life of the entire safety door system are enhanced. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0027] Figure 1 This is a perspective view of the bottom support structure of a rail transit platform safety door provided in an embodiment of this application.

[0028] Figure 2 This is a perspective view of the bottom support structure of a rail transit platform safety door provided in an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Support plate; 11. First oblong hole;

[0031] 2. Support block; 21. Second oblong hole

[0032] 3. Anchor bolts;

[0033] 4. Fasteners;

[0034] 5. Gasket assembly; 51. U-shaped opening groove; 52. Guide slope. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0037] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0038] To address the technical problem that existing safety door support structures cannot achieve fine-tuning during installation, leading to inaccurate alignment between the safety door and the track, this application provides a bottom support structure for a rail transit platform safety door. This structure enables fine-tuning of the positions of the support plate and support block, improving the installation accuracy of the safety door, ensuring normal operation of the door, and enhancing the reliability and service life of the entire safety door system.

[0039] Figure 1 and Figure 2 A bottom support structure for a rail transit platform safety door provided in this application embodiment includes:

[0040] Support plate 1 is provided with multiple first oblong holes 11;

[0041] At least one support block 2 is disposed on the support plate 1, and the support block 2 is provided with a plurality of second oblong holes 21;

[0042] Multiple anchor bolts 3 are inserted into the first oblong hole 11 to fix the support plate 1 onto the platform foundation structure (not shown in the attached figure);

[0043] Multiple fasteners 4 are inserted into the corresponding mounting holes on the second waist-shaped hole 21 and the threshold (not shown in the attached figure) to fix the support block 2 to the threshold.

[0044] in:

[0045] The long axis of the first oblong hole 11 is parallel to the length direction of the support plate 1, and is used to adjust the installation position of the support plate 1 along the length direction.

[0046] The long axis of the second oblong hole 21 is parallel to the width direction of the support plate 1, and is used to adjust the installation position of the support block along the width direction of the support plate 1.

[0047] During installation, the bottom support structure of the platform safety door in rail transit stations must be accurately connected to the platform foundation structure and the safety door threshold. The support plate 1, as the basic load-bearing component, is connected to the platform foundation structure through anchor bolts 3; the support block 2 is set on the support plate 1 and connected to the threshold through fasteners 4, thereby constructing a stable support system between the bottom of the safety door and the platform.

[0048] Specifically, the support plate 1 has multiple first oblong holes 11, and the long axis of the first oblong holes 11 is parallel to the length direction of the support plate 1. During installation, due to possible errors in the platform construction, the initial installation position of the support plate 1 may deviate from the ideal position. In this case, it is not necessary to completely disassemble and reinstall. By moving the support plate 1 along the long axis of the first oblong holes 11, the installation position of the support plate 1 on the platform foundation structure can be adjusted. After the support plate 1 is moved to the appropriate position, the anchor bolts 3 are tightened to firmly fix the support plate 1 to the platform foundation structure.

[0049] Meanwhile, the support block 2 has multiple second oblong holes 21, the long axis of which is parallel to the width direction of the support plate 1. The installation of the safety door requires high positional accuracy. After the position of the support plate 1 is determined, the position of the support block 2 may need to be fine-tuned to ensure accurate alignment between the safety door and the track. By moving the support block along the long axis of the second oblong holes 21, the position of the support block 2 relative to the threshold in the width direction can be adjusted. After adjusting to the appropriate position, fasteners 4 are used to fix the support block 2 to the threshold, ensuring the stability of the support block's position.

[0050] Traditional platform screen door bottom support structures use a fixed connection method, which is difficult to cope with platform construction errors. However, the support plate 1 and support block 2 of this structure can be adjusted in length and width directions through the first oblong hole 11 and the second oblong hole 21, respectively. This can effectively overcome platform construction errors, make the installation position of the safety door more precise, ensure that the safety door is accurately aligned with the track, and avoid affecting the operation of the door due to inaccurate alignment.

[0051] In some embodiments of this application, the number of first waist-shaped holes 11 is four, and the four first waist-shaped holes 11 are symmetrically arranged in the four corner areas of the support plate 1.

[0052] In the above embodiment, when the support plate 1 is connected to the platform foundation structure via anchor bolts 3, the four first oblong holes 11 are symmetrically arranged at the four corner areas of the support plate 1, which makes the force on the support plate 1 on the platform foundation structure more uniform. When the weight of the safety door and various forces generated during operation act on the support plate 1, the four corner areas simultaneously bear these forces, which are then transmitted to the platform foundation structure through the anchor bolts 3. Due to the uniform distribution of the stress points, deformation or damage to the support plate caused by excessive local stress is avoided, ensuring the structural stability of the support plate.

[0053] Each first oblong hole 11 provides a certain amount of space for adjusting the position of the support plate 1 in the length direction. During installation, if a deviation in the position of the support plate 1 in the length direction is found, the installer can make fine adjustments to the support plate 1 simultaneously or separately along the long axis of the four first oblong holes 11. Because the four first oblong holes 11 are symmetrically distributed, the balance of the support plate 1 can be better controlled during adjustment, keeping it horizontal during movement and ensuring that the adjusted support plate 1 can be accurately installed in the appropriate position before tightening the anchor bolts 3 to fix it.

[0054] In some embodiments of this application, the support block 2 is provided with at least four second waist-shaped holes 21, which are arranged in an m×n matrix, where m≥2, n≥2, and m and n are both integers.

[0055] In the above embodiment, at least four second oblong holes 21 arranged in a matrix on the support block 2 provide multiple fixing points for the connection between the support block 2 and the threshold. When the fastener 4 passes through these second oblong holes 21 and connects with the corresponding mounting holes on the threshold, multi-directional constraints are formed. During the operation of the safety door, horizontal forces (including those along the width direction of the support plate and those perpendicular to the width direction) and vertical forces are generated. The matrix arrangement of the multiple second oblong holes 21 can disperse these forces from different directions, making the connection between the support block 2 and the threshold more stable and reducing loosening or damage to the connection caused by concentrated force in one direction.

[0056] The long axis of each second oblong hole 21 is parallel to the width direction of the support plate 1. During installation, if there is a misalignment between the sill and the support block 2 in the width direction, the support block 2 can be fine-tuned by moving it along the long axis of the second oblong hole 21. The matrix arrangement of the second oblong holes 21 makes this adjustment more flexible and precise. Installers can select the appropriate second oblong hole 21 for adjustment according to the actual deviation to ensure accurate alignment between the support block 2 and the sill, and then tighten the fasteners 4 to secure it.

[0057] In some embodiments of this application, there are two support blocks 2, which are symmetrically arranged at both ends of the support plate 1 along the length of the support plate 1.

[0058] In the above embodiment, the platform screen door of the rail transit station is subjected to various forces during operation, including its own weight, the power of opening and closing the door, and the airflow force generated by the train. By symmetrically arranging two support blocks 2 at both ends of the support plate 1 along its length, these forces on the screen door can be distributed relatively evenly across the two support blocks 2. Each support block 2 bears a portion of the force, which is then transmitted through the connection structure between the support block 2 and the support plate 1 and the threshold, thus preventing structural damage caused by force concentration at a single point or in a localized area.

[0059] For example, when the safety door closes, the door's gravity acts downwards, while the force generated by the door opening and closing mechanism also has a specific direction. The two symmetrically arranged support blocks 2 can jointly bear these vertical and horizontal forces, ensuring the force balance of the entire bottom support structure.

[0060] In some embodiments of this application, a plurality of gasket groups 5 are also included, each gasket group 5 being respectively fitted onto two adjacent anchor bolts 3 and abutting against the lower surface of the support plate 1.

[0061] In the above embodiment, when the anchor bolt 3 connects and fixes the support plate 1 to the platform foundation structure, the contact area between the anchor bolt 3 and the support plate 1 will bear a large concentrated stress. Multiple gasket sets 5 are fitted onto the anchor bolt 3 and abut against the lower surface of the support plate 1, with the gasket sets 5 having a large contact area. Under stress, the stress originally concentrated in the small contact area between the anchor bolt 3 and the support plate 1 will be dispersed to the larger contact surface between the gasket sets 5 and the support plate 1. According to the stress formula σ=F / A (where σ is stress, F is force, and A is the area of ​​force application), as the area of ​​force application A increases, the stress σ decreases, thereby reducing the stress concentration at the anchor bolt 3 connection point of the support plate 1 and preventing localized damage to the support plate 1 due to excessive stress.

[0062] In some embodiments of this application, the gasket group 5 includes a plurality of stacked gaskets.

[0063] When anchor bolt 3 connects support plate 1 to the platform foundation structure, the stress dispersion capability of a single gasket is limited. However, gasket group 5, composed of multiple stacked gaskets, allows each gasket to bear a portion of the stress under load. The stress starts at the contact point between support plate 1 and anchor bolt 3 and is transmitted and dispersed sequentially through each stacked gasket. Like a multi-layered filter, each layer of gasket weakens and disperses the stress, resulting in a more uniform stress distribution to the platform foundation structure and significantly reducing the damage to support plate 1 and the foundation structure caused by localized stress concentration.

[0064] For example, when the safety door is subjected to the vibration and impact force generated by the train operation, this force is transmitted to the gasket group 5 through the anchor bolt 3. The multiple gaskets work together to disperse the impact force over a larger area, reducing the force borne by a single gasket, thereby protecting the support plate 1 and the platform foundation structure.

[0065] In some embodiments of this application, the gasket is provided with a U-shaped opening groove 51, the width of which is adapted to the diameter of the rod of the anchor bolt 3 to form a clearance fit.

[0066] The width of the U-shaped slot 51 on the gasket is matched with the diameter of the anchor bolt 3 rod, forming a clearance fit. This design provides a clear installation guide for the gasket during installation. Installers can easily slip the gasket onto the anchor bolt 3 rod through the U-shaped slot 51, allowing the gasket to be quickly and accurately positioned in the predetermined location. This prevents the gasket from shifting or misaligning during installation, ensuring the correct assembly of the gasket assembly 5 and the anchor bolt 3.

[0067] For example, when multiple stacked gaskets are installed onto the anchor bolt 3, the U-shaped opening groove 51 can guide each gasket to be accurately fitted onto the anchor bolt 3 in sequence, ensuring the overall installation accuracy of the gasket group 5.

[0068] Understandably, the design of the U-shaped opening groove 51 makes the installation of the gaskets very simple and quick, eliminating the need for installers to spend a lot of time on precise alignment and adjustment, thus greatly improving installation efficiency. This convenience is even more pronounced when multiple gasket groups 5 need to be installed, which can shorten the overall installation period.

[0069] In some embodiments of this application, guide slopes 52 are provided on both sides of the U-shaped opening groove 51, and the guide slopes 52 are inclined along the direction of the opening of the U-shaped opening groove 51.

[0070] During the installation of the gasket onto the anchor bolt 3, due to the guide ramp 52 inclined along the opening direction of the U-shaped slot 51, when the gasket approaches the anchor bolt 3, the guide ramp 52 will first contact the anchor bolt 3. As the gasket continues to approach, the guide ramp will gradually guide the anchor bolt 3 into the U-shaped slot 51. This is similar to a funnel, with the anchor bolt 3 acting as an object entering the funnel. Under the action of the guide ramp 52, it can enter the U-shaped slot 51 more smoothly and accurately, greatly reducing the installation difficulty and improving the installation efficiency.

[0071] For example, in situations where space is limited or the installation line of sight is obstructed, the guide ramp can automatically guide the anchor bolt 3 into the correct position by virtue of its inclined shape, reducing the need for installers to repeatedly adjust the position of the shims.

[0072] Understandably, the design of the guide ramp 52 eliminates the need for installers to precisely align the anchor bolt and the U-shaped opening groove 51. They only need to bring the shim roughly close to the anchor bolt 3, and the guide ramp 52 will automatically guide the installation, greatly simplifying the installation process. It is especially suitable for large-scale installations and installation work in complex environments.

[0073] In some embodiments of this application, the thickness of the gasket is 1-5 mm. The 1-5 mm thick gasket can be flexibly selected according to the actual working conditions. Whether it is a newly built platform or a renovation of an old platform, the bottom support structure of the safety door can be adapted to different platform environments by using an appropriate gasket thickness, thereby enhancing the versatility and adaptability of the structure.

[0074] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0075] In the description of this application, it should 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", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 this application, "multiple" means two or more, unless otherwise explicitly specified.

[0077] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0078] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0079] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0080] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0081] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A bottom support structure for a safety door on a rail transit platform, characterized in that, include: The support plate has multiple first oblong holes; At least one support block is disposed on the support plate, and the support block is provided with a plurality of second oblong holes; Multiple anchor bolts are inserted into the first oblong hole to fix the support plate to the platform foundation structure. Multiple fasteners are provided, each of which is correspondingly inserted into the mounting hole on the second waist-shaped hole and the threshold, to fix the support block and the threshold in a fixed connection. in: The long axis of the first oblong hole is parallel to the length direction of the support plate, and is used to adjust the installation position of the support plate along the length direction; The long axis of the second oblong hole is parallel to the width direction of the support plate, and is used to adjust the installation position of the support block along the width direction of the support plate.

2. The bottom support structure of the rail transit platform safety door according to claim 1, characterized in that, The number of the first waist-shaped holes is four, and the four first waist-shaped holes are symmetrically arranged in the four corner areas of the support plate.

3. The bottom support structure of the rail transit platform safety door according to claim 1, characterized in that, The support block is provided with at least four second waist-shaped holes, which are arranged in an m×n matrix, where m≥2, n≥2, and m and n are both integers.

4. The bottom support structure of the rail transit platform safety door according to claim 1, characterized in that, The number of support blocks is two, and the two support blocks are symmetrically arranged at both ends of the support plate along the length direction of the support plate.

5. The bottom support structure of the rail transit platform safety door according to claim 1, characterized in that, It also includes multiple gasket sets, each of which is respectively fitted onto two adjacent anchor bolts and abuts against the lower surface of the support plate.

6. The bottom support structure of the rail transit platform safety door according to claim 5, characterized in that, The gasket group includes multiple gaskets stacked on top of each other.

7. The bottom support structure of the rail transit platform safety door according to claim 6, characterized in that, The gasket is provided with a U-shaped opening groove, the width of which is adapted to the diameter of the rod of the anchor bolt to form a clearance fit.

8. The bottom support structure of the rail transit platform safety door according to claim 7, characterized in that, The U-shaped opening groove has guide slopes on both sides, and the guide slopes are inclined along the direction of the opening of the U-shaped opening groove.

9. The bottom support structure of the rail transit platform safety door according to claim 6, characterized in that, The thickness of the gasket is 1 to 5 mm.

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