Change gear device of light-weight hoistway door

Abstract

The utility model discloses a change gear device of a light-weight landing door. The change gear device comprises a positioning frame, a fixing seat, a limiting piece and a buffering piece. A roller is arranged in the middle of the positioning frame, a pushing part is arranged on the fixing seat, the limiting part is hinged to the fixing seat through a hinge shaft, and the buffering part keeps the limiting part fixed when the limiting part is stressed. The pushing piece pushes the limiting piece to rotate, and the positioning part and the limiting part are kept to be separated from limiting. According to the change gear device of the light-weight hoistway door, the positioning frame on the hoistway door is limited through the independently-arranged protection structure, the situation that the hoistway door is opened by external or internal personnel can be avoided, and therefore the safety of an elevator is improved. And meanwhile, the safety performance can be improved by adopting the independent electromagnetic control pushing piece, and accidents are avoided.

Description

Technical Field

[0001] The utility model relates to elevator hanging wheel technology, in particular to a hanging wheel device for a lightweight hall door. Background Art

[0002] With the rapid construction of modern high-rise buildings, elevators are becoming increasingly common, placing increasing demands on the pulleys used in elevator door systems. Elevator door pulleys guide and support the movement of elevator doors. Typically, these pulleys are rotatably fixed to the elevator door, rolling along a pre-set track via a groove on their outer edge to ensure smooth opening and closing of the elevator door. Some pulley systems can be pried open by someone attempting to pry open the landing door before the elevator reaches it, creating an opening that exposes the elevator's access path. This undeniably increases the risk of accidents. Utility Model Content

[0003] In order to solve the defects of the above-mentioned prior art, the utility model proposes a hanging wheel device for a lightweight hall door.

[0004] The technical solution of the present utility model is achieved as follows:

[0005] A hanging wheel device for a lightweight landing door, comprising:

[0006] A positioning frame, wherein a roller is provided in the middle of the positioning frame.

[0007] A fixing seat is provided at one end of the positioning frame, and a pushing member is provided on the fixing seat.

[0008] A limiting member is provided on the fixing seat, the limiting member is hinged to the fixing seat through a hinge shaft, a limiting portion is provided on the limiting member, and a positioning portion cooperating with the limiting portion is provided at the bottom of the positioning frame.

[0009] And a buffering member is arranged on the limiting member, the buffering member keeps the limiting member under force and in a fixed position, and the pushing member pushes the limiting member to rotate, so as to keep the positioning part and the limiting part out of the limit.

[0010] In the hanging wheel device of the lightweight hall door of the present invention, the pushing member is an electromagnetic member, which generates magnetic force when energized.

[0011] In the hanging wheel device of the lightweight hall door of the present invention, the fixing seat is provided with symmetrically arranged hinge blocks, the hinge blocks and the hinge areas are formed between the hinge blocks, and the limiting member is arranged in the hinge area.

[0012] In the hanging wheel device of the lightweight hall door of the present invention, the limiting member is composed of a magnetic plate, an extension section, a blocking section and limiting arms symmetrically arranged on both sides of the blocking section, and the limiting part connects the symmetrical limiting arms.

[0013] In the hanging wheel device of the lightweight hall door of the present invention, the upper end of the blocking section is provided with a first clamping portion, and the lower end is provided with a second clamping portion, and an installation area is formed between the first clamping portion and the second clamping portion.

[0014] In the hanging wheel device of the lightweight hall door of the present invention, the buffer is arranged in the installation area, and the buffer is provided with a first clamping groove cooperating with the first clamping portion and a second clamping groove cooperating with the second clamping portion.

[0015] In the hanging wheel device of the lightweight hall door of the present invention, the buffer member is provided with a first contact surface and a second contact surface, the first contact surface contacts the positioning frame, and the second contact surface contacts the fixing seat.

[0016] In the hanging wheel device of the lightweight hall door of the present invention, the buffering member is provided with a buffering hole, and the buffering hole is provided with a symmetrically arranged connecting portion.

[0017] The lightweight hall door pulley device of the present invention has the following beneficial effects: It utilizes a separate protective structure to limit the positioning frame on the hall door, preventing the hall door from being pried open by outsiders or insiders, thereby improving elevator safety. Furthermore, the use of a separate electromagnetically controlled pusher further enhances safety and prevents accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the hanging wheel device for the lightweight hall door of the present utility model;

[0019] Figure 2 for Figure 1 A top view of

[0020] Figure 3 for Figure 2 The cross-sectional view at AA in the figure;

[0021] Figure 4 for Figure 1 Exploded diagram;

[0022] Figure 5 for Figure 4 Schematic diagram of the fixed seat structure;

[0023] Figure 6 for Figure 4 Schematic diagram of the limiting component structure;

[0024] Figure 7 for Figure 4 Schematic diagram of the installation structure of the fixing seat and buffer part. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] like Figures 1 to 7 As shown, the lightweight hall door hanging wheel device of the present invention includes a positioning frame 1, a fixing seat 2, a limiting member 3 and a buffer member 4. The positioning frame 1 is used to move with the hall door, keeping the roller 5 rolling on the track, so that the two hall doors are opened. After opening, the positioning frame 1 on the hall door moves toward the fixing seat 2 at both ends of the hall door, hitting the buffer member 4, and the limiting member 3 keeps the position of the positioning frame 1 fixed, thereby preventing the hall door from being pried open, which can effectively reduce the phenomenon of the elevator hall door being deliberately pried open during operation.

[0027] This application only shows the effect of limiting the position of one hall door, but in practice it is necessary to set a symmetrical positioning frame 1, a fixing seat 2, a limiting member 3 and a buffer member 4 to limit the two hall doors.

[0028] A positioning area 6 is formed in the middle of the positioning frame 1 . A roller 5 is provided in the positioning area 6 . The roller 5 is mounted on the positioning frame 1 via a rotating shaft 7 .

[0029] A fixed seat 2 is mounted at one end of the positioning frame 1. A pusher 8 is mounted on the fixed seat 2. This pusher 8 is an electromagnetic element that generates a magnetic force when energized. This pusher 8 rotates the stopper 3, disengaging the positioning portion 9 from the stopper 10. A control system controls the energization of the pusher 8, generating its magnetic force.

[0030] The fixing seat 2 is provided with symmetrically arranged hinge blocks 11 , and the hinge blocks 11 and the hinge blocks 11 form a hinge area 12 in the middle thereof. The limiting member 3 is arranged in the hinge area 12 .

[0031] The fixing base 2 is also provided with a stopper 13 and a mounting block 14. A mounting chamber 15 is provided in the middle of the mounting block 14, and the pusher 8 is provided in the mounting chamber 15. A pushing area 16 is formed between the stopper 13 and the mounting block 14. The stopper 13 is used to limit the position of the limiter 3 and the rotation angle.

[0032] The limiting member 3 is provided on the fixing seat 2 and is hinged to the fixing seat 2 via a hinge shaft 17 . A limiting portion 10 is provided on the limiting member 3 , and a positioning portion 9 cooperating with the limiting portion 10 is provided at the bottom of the positioning frame 1 .

[0033] The limiting member 3 consists of a magnetic plate 18, an extension section 19, a blocking section 20, and limiting arms 21 symmetrically arranged on either side of the blocking section 20. The limiting portion 10 connects the symmetrical limiting arms 21. The magnetic plate 18 and the pusher 8 have opposite magnetic poles at their respective ends. The blocking section 20 has a first engaging portion 22 at its upper end and a second engaging portion 23 at its lower end, forming a mounting area 24 between the first and second engaging portions 22 and 23. A hinge shaft 17 is provided at the junction of the limiting portion 10 and the blocking section 20.

[0034] A through hole 25 is formed between the limiting arms 21 , and the through hole 25 is used for the extending portion 26 to extend downward.

[0035] The buffer member 4 is mounted on the position-limiting member 3 to maintain the position of the position-limiting member 3 under load. The buffer member 4 is disposed within the mounting area 24 and is provided with a first engaging groove 27 that engages with the first engaging portion 22 and a second engaging groove 28 that engages with the second engaging portion 23. The first engaging portion 22 and the second engaging portion 23 allow the buffer member 4 to be mounted on the position-limiting member 3.

[0036] A movable area 29 is formed between the second clamping portion 23 and the hinge area 12 to facilitate the rotation of the limiting member 3 and compress the extending portion 26 .

[0037] The buffer member 4 is provided with a first contact surface 30 and a second contact surface 31. The first contact surface 30 contacts the positioning frame 1, and the second contact surface 31 contacts the fixing seat 2. The buffer member 4 is provided with a buffer hole 32, and a symmetrically arranged connecting portion 33 is provided in the buffer hole 32. The buffer hole 32 can improve the buffering effect on the positioning frame 1.

[0038] In addition, an extension portion 26 is provided on the buffer member 4, a first arc surface 34 is provided on one side of the extension portion 26, and a second arc surface 35 is provided on the other end. The first arc surface 34 and the second arc surface 35 can achieve a buffering effect on the positioning frame 1 while keeping the limit portion 10 and the positioning portion 9 force-limited.

[0039] When the hall door of the elevator is closed, the positioning frame 1 hits the buffer member 4 , causing the buffer hole 32 to be compressed, and the positioning portion 9 is kept restricted by the limiting portion 10 .

[0040] When the elevator reaches the designated position on the floor, the pusher 8 is energized to push the magnetic plate 18, causing the limiter 3 to rotate around the hinge shaft 17, keeping the limiter 3 rotated into the active area 29, and squeezing the extension 26, so that the limiter 10 is disengaged from the positioning portion 9, and the positioning frame 1 is pushed through the upper end of the buffer 4, that is, the first contact surface 30 to drive the hall door to open.

[0041] When the elevator encounters a fault, the system will automatically disconnect the power supply of the pusher 8, thereby ensuring that the hall door can be opened after the elevator encounters an accident.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hanging wheel device for a lightweight landing door, characterized in that: include: A positioning frame, wherein a roller is provided in the middle of the positioning frame. A fixing seat is provided at one end of the positioning frame, and a pushing member is provided on the fixing seat. A limiting member is provided on the fixing seat, the limiting member is hinged to the fixing seat through a hinge shaft, a limiting portion is provided on the limiting member, and a positioning portion cooperating with the limiting portion is provided at the bottom of the positioning frame. and a buffer member provided on the limiting member, wherein the buffer member keeps the limiting member in a fixed position under force. The pushing member pushes the limiting member to rotate, so as to keep the positioning portion and the limiting portion out of the limit position.

2. The hanging wheel device for a lightweight hall door according to claim 1, characterized in that: The pushing member is an electromagnetic member which generates magnetic force when powered on.

3. The hanging wheel device for a lightweight hall door according to claim 1, characterized in that: The fixing seat is provided with symmetrically arranged hinge blocks, the hinge blocks and the hinge blocks form a hinge area in the middle, and the limiting member is arranged in the hinge area.

4. The hanging wheel device for a lightweight hall door according to claim 1, characterized in that: The limiting component consists of a magnetic plate, an extension section, a blocking section and limiting arms symmetrically arranged on both sides of the blocking section, and the limiting portion connects the symmetrical limiting arms.

5. The hanging wheel device for a lightweight hall door according to claim 4, characterized in that: The blocking section has a first clamping portion at its upper end and a second clamping portion at its lower end, and a mounting area is formed between the first clamping portion and the second clamping portion.

6. The hanging wheel device for a lightweight hall door according to claim 5, characterized in that: The buffer member is arranged in the installation area, and is provided with a first clamping groove matched with the first clamping portion and a second clamping groove matched with the second clamping portion.

7. The hanging wheel device for a lightweight hall door according to claim 6, characterized in that: The buffer member is provided with a first contact surface and a second contact surface, the first contact surface contacts the positioning frame, and the second contact surface contacts the fixing seat.

8. The hanging wheel device for a lightweight hall door according to claim 7, characterized in that: The buffering member is provided with a buffering hole, and a symmetrically arranged connecting portion is provided in the buffering hole.

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