Freely telescopic supporting tool for overhauling subway platform door

Abstract

The utility model relates to the technical field of limiting supports, in particular to a freely telescopic supporting tool for overhauling a subway platform door, which comprises a supporting frame, a propelling mechanism, a supporting seat, a propelling trigger, a bolt lock, a supporting rod and an angle adjusting piece, the supporting seat is fixed at the rear end of the supporting frame, the propelling mechanism is arranged in the supporting frame, the supporting rod is connected with the propelling mechanism and can be driven by the propelling trigger to stretch out and draw back, and the bolt lock is used for locking the stretching position of the supporting rod; the angle adjusting piece is arranged at the front end of the supporting rod. According to the supporting tool, the pushing mechanism is matched with the pushing trigger to intermittently push the supporting rod, small-amplitude intermittent pushing of the supporting rod is achieved, an operator can control the extending length of the supporting rod only by pressing the pushing trigger, the operation efficiency is greatly improved, and the right-angle contact face matched with the sliding door stand column is arranged at the bottom of the supporting base. The risk that a traditional tool is prone to slipping during supporting is avoided.

Description

Technical Field

[0001] This utility model relates to the field of limiting support technology, specifically to a support tool for the maintenance of freely retractable subway platform doors. Background Technology

[0002] In the replacement of drive motors for platform screen doors in rail transit stations, existing tools such as hydraulic supports, pneumatic supports, and simple mechanical jacks have the following defects:

[0003] 1. Size and portability issues: The tools are large and heavy, making them difficult to use in the narrow space of the platform door cover and inconvenient to carry.

[0004] 2. Operation and precision issues: Hydraulic / pneumatic tools have too fast a pushing speed and it is difficult to accurately control the extension distance. Simple mechanical jacks have too slow a pushing speed through the rotation of the screw thread. Neither of these can meet the requirements for accurate positioning and belt tension adjustment during motor installation.

[0005] 3. Stability and safety issues: Existing tools are prone to slippage during support, and the push rod does not make sufficient contact with the motor bracket and the force is uneven, which poses a risk of damaging the equipment or causing safety accidents;

[0006] 4. Cost issues: Hydraulic / pneumatic tools are expensive to purchase, and existing tools have poor versatility and cannot be adapted to motor brackets of different angles. Utility Model Content

[0007] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, the purpose of this utility model is to provide a freely retractable support tool for the maintenance of subway platform screen doors, thereby improving the replacement efficiency of the platform screen door drive motor.

[0008] The objective of this utility model can be achieved through the following technical solutions:

[0009] A freely extendable support tool for the maintenance of subway platform doors includes a support frame, a push mechanism, a support base, a push trigger, a bolt, a support rod, and an angle adjustment component;

[0010] The support base is fixed to the rear end of the support frame, the propulsion mechanism is located inside the support frame, the support rod is connected to the propulsion mechanism and can be driven to extend and retract by the propulsion trigger, and the bolt is used to lock the extension and retraction position of the support rod;

[0011] The angle adjustment component is located at the front end of the support rod and is used to adjust the contact angle between the support rod and the motor bracket.

[0012] In some embodiments of this utility model, the support base is a right-angle support base, with a right-angle contact surface on one side adapted to the sliding door column, and the other side fixedly connected to the support frame.

[0013] In some embodiments of this utility model, the propulsion mechanism includes a trigger intermittent propulsion mechanism, wherein the propulsion trigger drives the support rod to propel intermittently through the lever principle.

[0014] In some embodiments of this utility model, the surface of the support rod is provided with scale markings, and the bolt lock precisely locks the extension length of the support rod according to the scale markings.

[0015] In some embodiments of this utility model, the angle adjustment component includes a housing, a universal ball, and a connecting rod. The universal ball is rotatably disposed inside the housing, and one end of the connecting rod is connected to the universal ball, while the other end is connected to a limiting component.

[0016] In some embodiments of this utility model, the limiting member includes a limiting disc and a connecting cylinder, one end of the connecting cylinder is sleeved on the connecting rod, and the limiting disc is fixed to the other end of the connecting rod.

[0017] In some embodiments of this utility model, a locking member is also included. The bottom of the locking member passes through the housing with a screw and abuts against the universal ball, thereby controlling the deflection angle of the universal ball.

[0018] In some embodiments of this utility model, a damping layer is provided between the omnidirectional ball and the outer shell to ensure that the steering head remains stable when subjected to force.

[0019] In some embodiments of this utility model, the surface of the limiting plate is covered with an anti-slip pad.

[0020] In some embodiments of this utility model, the end of the support rod away from the angle adjustment member is connected to a limiting head.

[0021] The beneficial effects of this utility model are:

[0022] In this support tool, the propulsion mechanism works in conjunction with the propulsion trigger to intermittently advance the support rod, achieving small-amplitude intermittent advancement. The operator only needs to press the propulsion trigger to control the extension length of the support rod. Compared with the problems of traditional hydraulic / pneumatic tools having excessively fast and uncontrollable propulsion speeds and simple mechanical jacks having excessively slow propulsion speeds, this tool greatly improves operating efficiency and makes the operation process simpler and easier to understand. Furthermore, the bottom of the support base has a right-angle contact surface adapted to the sliding door column, which can fit tightly with the column and achieve stable support through friction and structural constraints, avoiding the risk of slippage that occurs with traditional tools. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a side view of the present invention;

[0026] Figure 3 This is a perspective view of the angle adjustment component, the limiting component, and the locking component in this utility model.

[0027] In the diagram: 1. Support frame; 2. Propulsion mechanism; 3. Support base; 4. Propulsion trigger; 5. Lock; 6. Support rod; 61. Limit head; 7. Angle adjustment component; 71. Housing; 72. Universal ball; 73. Connecting rod; 8. Limit component; 81. Limit plate; 82. Connecting cylinder; 9. Locking component. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model. Example

[0029] like Figure 1 , Figure 2 As shown, a freely retractable support tool for the maintenance of subway platform doors includes a support frame 1, a pushing mechanism 2, a support base 3, a pushing trigger 4, a bolt 5, a support rod 6, and an angle adjustment component 7. The support base 3 is fixed to the rear end of the support frame 1, the pushing mechanism 2 is located inside the support frame 1, the support rod 6 is connected to the pushing mechanism 2 and can be driven to extend and retract by the pushing trigger 4, and the bolt 5 is used to lock the extension and retraction position of the support rod 6. The angle adjustment component 7 is located at the front end of the support rod 6 and is used to adjust the contact angle between the support rod 6 and the motor bracket.

[0030] In use, the support base 3 is fixed to the sliding door post, and the support frame 1 is stably supported by the support base 3. Then, the push trigger 4 is pressed, which drives the push mechanism 2 to extend the support rod 6. After contacting the motor bracket, the trigger is released, and the latch 5 automatically locks the current position. Then, the angle adjustment piece 7 can be rotated or moved to ensure full contact with the motor bracket to be maintained. This not only enables flexible use of the support tool in confined spaces, solving the problems of large size and poor portability of traditional tools, but also improves versatility by adapting the angle adjustment piece 7 to motor brackets at different angles and positions. Example

[0031] In some embodiments of this utility model, the support base 3 is a right-angle support base, with a right-angle contact surface on one side adapted to the sliding door column, and the other side fixedly connected to the support frame 1; the pushing mechanism 2 includes a trigger intermittent pushing mechanism, and the pushing trigger 4 drives the support rod 6 to push intermittently through the lever principle. The surface of the support rod 6 is provided with scale markings, and the lock 5 precisely locks the extension length of the support rod 6 according to the scale markings.

[0032] The right-angle contact surface fits into the sliding door pillar, achieving stable support through friction and structural constraints to prevent slippage. Each time the trigger 4 is pressed, the support rod 6 advances only a small distance, such as 0.5cm-2cm. Precise positioning is achieved through multiple triggers. It automatically locks after the trigger is released. The scale markings and the bolt 5 work together to make the advancing distance more accurate, which is superior to traditional tools.

[0033] In this embodiment, the right-angle support significantly improves support stability and solves the problem of traditional tools easily slipping out, while the intermittent propulsion mechanism achieves centimeter-level precision control, meeting the precise positioning requirements during motor installation.

[0034] Further refining the above embodiments, the contact surface shape of the support base 3 also varies depending on the shape of the column to be fitted, such as a fan shape. Example

[0035] like Figure 3 As shown, in some embodiments of this utility model, the angle adjusting member 7 includes a housing 71, a universal ball 72, and a connecting rod 73. The universal ball 72 is rotatably disposed inside the housing 71. One end of the connecting rod 73 is connected to the universal ball 72, and the other end is connected to a limiting member 8. The universal ball 72 rotates freely inside the housing 71, and the connecting rod 73 drives the limiting member 8 to adjust its direction, so that the limiting member 8 is fully engaged with the motor bracket, ensuring full contact with the motor bracket and avoiding uneven force distribution. Example

[0036] In some embodiments of this utility model, the limiting member 8 includes a limiting disc 81 and a connecting cylinder 82. One end of the connecting cylinder 82 is sleeved on the connecting rod 73, and the limiting disc 81 is fixed to the other end of the connecting rod 73. The angle adjusting member 7 is also provided with a locking member 9. The bottom of the locking member 9 passes through the outer shell 71 through a screw and abuts against the universal ball 72, thereby controlling the deflection angle of the universal ball 72.

[0037] When the limit plate 81 contacts the motor bracket, a larger contact area can increase the stability during the contact process and also protect the surface of the motor bracket; after adjusting the universal ball 72 to the required angle, tighten the screw of the locking part 9 so that the screw head presses the universal ball 72 to fix it, prevent loosening, and avoid angle deviation caused by external force. Example

[0038] In some embodiments of this utility model, a damping layer is provided between the universal ball 72 and the outer shell 71 to ensure that the steering head remains stable under force, and an anti-slip pad is laid on the surface of the limiting plate 81. The damping layer increases the resistance when the universal ball 72 rotates, making the adjustment process smoother and avoiding angle loss due to inertia, which is especially safer to operate in confined spaces; while the anti-slip pad increases the friction when the limiting plate 81 contacts the motor bracket, preventing the support tool from sliding and reducing the risk of slippage due to vibration or external force. Example

[0039] In some embodiments of this invention, the end of the support rod 6 furthest from the angle adjusting member 7 is connected to a limiting head 61. When the support rod 6 extends to its limit position, the limiting head 61 abuts against the pushing mechanism 2, preventing the support rod 6 from overextending and causing structural damage. This protects the mechanical structure of the pushing mechanism 2 and the support rod 6, extends the tool's service life, and ensures stability during locking.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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 the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer 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.

[0041] The above description is merely an example and illustration of the present utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A free-stretchable support tool for subway platform door maintenance, characterized in that, The support frame, the propulsion mechanism, the support base, the propulsion trigger, the lock, the support rod and the angle adjusting member are included. The support base is fixed to the rear end of the support frame, the propulsion mechanism is arranged in the support frame, the support rod is connected with the propulsion mechanism and can be driven to extend and retract through the propulsion trigger, and the lock is used for locking the extension and retraction position of the support rod. The angle adjusting member is arranged at the front end of the support rod and is used for adjusting the contact angle between the support rod and the motor support.

2. The retractable subway platform door maintenance support tool according to claim 1, wherein, The support base is a right-angle support base, one side of which is provided with a right-angle contact surface matched with the sliding door stand column, and the other side is fixedly connected with the support frame.

3. The retractable subway platform door maintenance support tool according to claim 1, wherein The propulsion mechanism includes a trigger intermittent propulsion mechanism, and the propulsion trigger drives the support rod to intermittently propel through the lever principle.

4. The retractable subway platform door maintenance support tool according to claim 1, wherein, The surface of the support rod is provided with a scale mark, and the lock accurately locks the extension length of the support rod according to the scale mark.

5. The retractable subway platform door maintenance support tool according to claim 1, wherein, The angle adjusting member includes a shell, a universal ball and a connecting rod, the universal ball is rotatably arranged in the shell, one end of the connecting rod is connected with the universal ball, and the other end is connected with a limiting member.

6. The telescopic subway platform door maintenance support tool according to claim 5, characterized in that, The limiting member includes a limiting disc and a connecting barrel, one end of the connecting barrel is sleeved on the connecting rod, and the limiting disc is fixed to the other end of the connecting rod.

7. The telescopic subway platform door maintenance support tool according to claim 5, characterized in that, A locking member is further included, the bottom of the locking member penetrates the shell through a screw and abuts against the universal ball, thereby controlling the deflection angle of the universal ball.

8. The retractable subway platform door maintenance support tool according to claim 5, wherein, A damping layer is arranged between the universal ball and the shell.

9. The retractable subway platform door maintenance support tool according to claim 6, wherein, The surface of the limiting disc is paved with a non-slip pad.

10. The retractable subway platform door maintenance support tool according to claim 1, wherein, The end of the support rod away from the angle adjusting member is connected with a limiting head.

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