Escalator automatic locking device

Abstract

The utility model relates to the technical field of escalator and disclose a kind of automatic locking device of lift escalator, including main ladder frame, the auxiliary ladder frame is slidably connected on the main ladder frame, the pedal is fixedly installed on the auxiliary ladder frame, the locking mechanism is provided on the main ladder frame, the locking mechanism includes fixed column and buckle plate, the buckle plate is rotatably connected on fixed column by bearing, torsional spring is sleeved on the fixed column, first limit block is fixedly installed on the buckle plate, limit post is fixedly installed on the main ladder frame.The utility model can use the hand of user to make the buckle plate with the axis of fixed column as center, overturn its buckle plate, make the lock of its buckle plate far from the pedal on the auxiliary ladder frame, at this time, the auxiliary ladder frame loses locking and can be active, when the user releases the handle, its buckle plate is automatically overturned under the action of torsional spring, makes its lock lock on the pedal, so as to reach the locking effect of auxiliary ladder frame, improve the stability after ladder extension.

Description

Technical Field

[0001] This utility model relates to the field of escalator technology, specifically to an automatic locking device for escalators. Background Technology

[0002] Escalators are made of high-strength aluminum alloy and have advantages such as small size, light weight, balanced lifting, and safety and reliability. They are suitable for high-altitude operations in confined spaces, such as interior decoration and light fixture replacement. Generally, escalators consist of a main ladder frame and an auxiliary ladder frame, and the auxiliary ladder frame can be raised and lowered to extend the overall length of the ladder.

[0003] Currently, existing escalators have poor stability after extension, and the auxiliary ladder frame is prone to loosening and falling. Therefore, an automatic locking device for escalators is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an automatic locking device for escalators, addressing the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic locking device for an escalator, including a main ladder frame, a secondary ladder frame slidably connected to the main ladder frame, a step fixedly installed on the secondary ladder frame, and a locking mechanism provided on the main ladder frame;

[0006] The locking mechanism includes a fixed post and a locking plate. The locking plate is rotatably connected to the fixed post via a bearing. A torsion spring is sleeved on the fixed post. A first limiting block is fixedly installed on the locking plate. A limiting post is fixedly installed on the main ladder frame. A limiting groove and a locking slot are provided on the locking plate. One end of the torsion spring abuts against the first limiting block. When the user holds the handle, the locking plate can be flipped around the axis of the fixed post, so that the locking slot on the locking plate is away from the step on the secondary ladder frame. At this time, the secondary ladder frame is unlocked and can move. When the user releases the handle, the locking plate automatically flips under the action of the torsion spring, so that the locking slot locks onto the step, thereby achieving the locking effect of the secondary ladder frame and improving the stability of the ladder after extension.

[0007] Preferably, a second limiting block is fixedly installed on the main ladder frame, and the other end of the torsion spring abuts against the second limiting block. The setting of the second limiting block and the first limiting block enables the torsion spring to transmit torque to the buckle plate, thereby facilitating the buckle plate to be reset.

[0008] Preferably, the fixing column is fixedly installed on the main ladder frame, and an anti-slip base is fixedly installed at the lower end of the main ladder frame. The anti-slip base can improve the stability of the escalator.

[0009] Preferably, the buckle plate has mounting holes, and the bearing is fixedly installed inside the mounting holes. The mounting holes facilitate the installation of the bearing on the buckle plate.

[0010] Preferably, a handle is fixedly installed on the buckle plate, and a stop is fixedly installed on the fixing post. The handle allows the user to easily flip the buckle plate.

[0011] Preferably, a rubber pad is adhered to the buckle plate, which can prevent the buckle plate from directly contacting the pedal and causing wear.

[0012] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0013] 1. The automatic locking device of this escalator allows the user to rotate the locking plate around the axis of the fixed column by holding the handle, so that the locking hole on the locking plate is away from the step on the auxiliary ladder frame. At this time, the auxiliary ladder frame is unlocked and can move. When the user releases the handle, the locking plate automatically rotates under the action of the torsion spring, so that the locking hole locks onto the step, thereby achieving the locking effect of the auxiliary ladder frame and improving the stability of the ladder after it is extended.

[0014] 2. The automatic locking device of this escalator protects the buckle plate and the pedal by setting a rubber pad on the buckle plate, avoiding wear caused by direct contact between the buckle plate and the pedal, and further improving the practicality of the locking device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the locking mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the buckle structure of this utility model.

[0019] In the diagram: 1. Main ladder frame; 2. Locking mechanism; 201. Fixed post; 202. Torsion spring; 203. Buckle plate; 204. Mounting hole; 205. Bearing; 206. First limit block; 207. Locking port; 208. Handle; 209. Limiting groove; 210. Rubber pad; 211. Stop block; 212. Limiting post; 213. Second limit block; 3. Secondary ladder frame; 4. Step; 5. Anti-slip base. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] 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 utility model, "several" means two or more, unless otherwise explicitly specified.

[0024] Please see Figure 1-4 The technical solution of this utility model is: an automatic locking device for an escalator, including a main ladder frame 1, a secondary ladder frame 3 slidably connected to the main ladder frame 1, a step 4 fixedly installed on the secondary ladder frame 3, and a locking mechanism 2 provided on the main ladder frame 1.

[0025] The locking mechanism 2 includes a fixed post 201 and a buckle plate 203. The buckle plate 203 is rotatably connected to the fixed post 201 via a bearing 205. A torsion spring 202 is sleeved on the fixed post 201. A first limiting block 206 is fixedly installed on the buckle plate 203. A limiting post 212 is fixedly installed on the main ladder frame 1. A limiting groove 209 is formed on the buckle plate 203. A locking slot 207 is formed on the buckle plate 203. One end of the torsion spring 202 abuts against the first limiting block 206. The buckle plate 203 is held by the user. The handle 208 can flip the buckle plate 203 around the axis of the fixing post 201, so that the locking port 207 on the buckle plate 203 is away from the step 4 on the secondary ladder frame 3. At this time, the secondary ladder frame 3 is unlocked and can move. When the user releases the handle 208, the buckle plate 203 will automatically flip under the action of the torsion spring 202, so that the locking port 207 locks onto the step 4, thereby achieving the locking effect of the secondary ladder frame 3 and improving the stability of the ladder after it is extended.

[0026] A second limiting block 213 is fixedly installed on the main ladder frame 1. The other end of the torsion spring 202 abuts against the second limiting block 213. The torsion spring 202 can transmit torque to the buckle plate 203 through the setting of the second limiting block 213 and the first limiting block 206, thereby facilitating the reset of the buckle plate 203.

[0027] The fixed column 201 is fixedly installed on the main ladder frame 1. The lower end of the main ladder frame 1 is fixedly installed with an anti-slip base 5. The anti-slip base 5 can improve the stability of the escalator.

[0028] The buckle plate 203 has a mounting hole 204, and the bearing 205 is fixedly installed inside the mounting hole 204. The mounting hole 204 makes it easy to install the bearing 205 on the buckle plate 203.

[0029] A handle 208 is fixedly installed on the buckle plate 203, and a stop block 211 is fixedly installed on the fixing post 201. The handle 208 allows the user to easily flip the buckle plate 203.

[0030] A rubber pad 210 is attached to the buckle plate 203. The rubber pad 210 can prevent the buckle plate 203 from directly contacting the pedal 4 and causing wear.

[0031] Working principle: By holding the handle 208, the user can rotate the buckle plate 203 around the axis of the fixing post 201, causing the locking slot 207 on the buckle plate 203 to move away from the footplate 4 on the secondary ladder frame 3. At this time, the secondary ladder frame 3 is unlocked and can move. When the user releases the handle 208, the buckle plate 203 automatically rotates under the action of the torsion spring 202, locking the locking slot 207 onto the footplate 4, thereby achieving the locking effect of the secondary ladder frame 3 and improving the stability of the ladder after extension. By setting the rubber pad 210 on the buckle plate 203, the buckle plate 203 and the footplate 4 can be protected, avoiding the problem of wear caused by direct contact between the buckle plate 203 and the footplate 4, further improving the practicality of the locking device.

[0032] This utility model provides an automatic locking device for escalators. There are many methods and approaches to implement this technical solution, and the above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. An automatic locking device for an escalator, comprising a main ladder frame (1), characterized in that: A secondary ladder (3) is slidably connected to the main ladder (1), a footboard (4) is fixedly installed on the secondary ladder (3), and a locking mechanism (2) is provided on the main ladder (1). The locking mechanism (2) includes a fixed post (201) and a buckle plate (203). The buckle plate (203) is rotatably connected to the fixed post (201) via a bearing (205). A torsion spring (202) is sleeved on the fixed post (201). A first limiting block (206) is fixedly installed on the buckle plate (203). A limiting post (212) is fixedly installed on the main ladder frame (1). A limiting groove (209) is opened on the buckle plate (203). A locking opening (207) is opened on the buckle plate (203). One end of the torsion spring (202) abuts against the first limiting block (206).

2. The automatic locking device for an escalator or moving walk according to claim 1, wherein: A second limiting block (213) is fixedly installed on the main ladder frame (1), and the other end of the torsion spring (202) abuts against the second limiting block (213).

3. The automatic locking device for an escalator or moving walk according to claim 1, wherein: The fixed column (201) is fixedly installed on the main ladder frame (1), and the lower end of the main ladder frame (1) is fixedly installed with an anti-slip base (5).

4. The automatic locking device for an escalator according to claim 1, characterized in that: The buckle plate (203) has a mounting hole (204), and the bearing (205) is fixedly installed inside the mounting hole (204).

5. The automatic locking device for an escalator according to claim 1, characterized in that: A handle (208) is fixedly installed on the buckle plate (203), and a stop block (211) is fixedly installed on the fixing post (201).

6. The automatic locking device for an escalator according to claim 1, characterized in that: A rubber pad (210) is adhered to the buckle plate (203).

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