Double-pulley assembly for elevator door

Abstract

The utility model discloses a double-pulley assembly for an elevator door, which relates to the technical field of elevator assemblies and comprises a pulley mechanism and a support mechanism, the support mechanism is arranged below the pulley mechanism and comprises a bottom plate, an L-shaped frame is arranged above the bottom plate, the pulley mechanism is mounted on the front surface of the L-shaped frame, and an extrusion spring is arranged between the bottom plate and the L-shaped frame. And a guide mechanism is arranged between the L-shaped frame and the bottom plate. The bottom plate, the L-shaped frame and the extrusion spring are arranged, the bottom plate is directly fixed to the elevator door, then the extrusion spring extrudes the L-shaped frame all the time through the elastic effect of the extrusion spring, and therefore the pulley mechanism installed on the L-shaped frame can stably abut against the sliding rail, the elevator door can move more smoothly, and the safety of the elevator is improved. And the working stability of the pulley mechanism is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator assembly technical field, especially a kind of double pulley assembly for elevator door. BACKGROUND

[0002] Elevator is the permanent transport equipment that its car runs in at least two columns vertical to horizontal plane or plumb line less than fifteen degrees of rigidity track movement, which serves several specific floors in building.

[0003] Elevator door is an important component of elevator, which plays a role in protecting passengers safety, isolating external environment and improving elevator operation efficiency. When elevator is working, elevator door will move up and down with car, and then open to make passengers in car leave elevator or people outside enter elevator.

[0004] Elevator door needs to move when realizing elevator opening, double pulley assembly is generally arranged between elevator door and slide rail, so that elevator door can move smoothly in slide rail, but it cannot guarantee that double pulley installed on elevator door always sticks to slide rail, so that double pulley assembly cannot play a stable role. Therefore, we propose a double pulley assembly for elevator door. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a double pulley assembly for elevator door to solve the problems in the above background.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a double pulley assembly for elevator door, comprising:

[0007] Pulley mechanism;

[0008] Supporting mechanism, the supporting mechanism is arranged below pulley mechanism, the supporting mechanism includes bottom plate, the bottom plate is arranged above L-shaped frame, the pulley mechanism is installed on the front of L-shaped frame, extrusion spring is arranged between the bottom plate and L-shaped frame, guide mechanism is arranged between L-shaped frame and bottom plate.

[0009] Preferably, the pulley mechanism includes roller, the roller is arranged on the front of L-shaped frame, the front of L-shaped frame is fixedly connected with central shaft, the outer wall of central shaft is sleeved with connecting bearing, and the roller is sleeved with the outer wall of connecting bearing.

[0010] Preferably, the guide mechanism includes vertical plate, the back of vertical plate is fixedly connected with the front of bottom plate, the back of vertical plate is provided with limiting slot, the front of L-shaped frame is fixedly connected with limiting slider, and the outer wall of limiting slider is slidably connected with the inner wall of limiting slot.

[0011] Preferably, the top end of the bottom plate is fixedly connected with a vertical rod, the top end of the L-shaped frame is provided with a movable hole, the outer wall of the vertical rod is movably inserted into the inner wall of the movable hole, the extrusion spring is sleeved on the outer wall of the vertical rod, and the top end of the L-shaped frame is provided with a limiting mechanism.

[0012] Preferably, the limiting mechanism comprises a locking nut, the locking nut is sleeved on the outer wall of the vertical rod, the locking nut is arranged above the L-shaped frame, the end portion of the vertical rod is provided with an external thread groove, and the inner wall of the locking nut is in meshing connection with the outer wall of the external thread groove.

[0013] Preferably, the bottom end of the bottom plate is provided with a plug hole, the plug hole is movably inserted with a mounting bolt, and the top end of the bottom plate is provided with a countersunk hole.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] The utility model discloses a bottom plate, L-shaped frame and extrusion spring are set, and the bottom plate is directly fixed with the elevator door, and then the elastic effect of extrusion spring makes extrusion spring always extrude L-shaped frame, so that the pulley mechanism installed on L-shaped frame can stably resist slide rail, so that the elevator door can move more smoothly, and the stability of pulley mechanism work is improved. ACCURACY OF DRAWINGS

[0016] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model.

[0017] Fig. 2 It is one of L-shaped frame side sectional structure schematic diagram of the utility model.

[0018] Fig. 3 It is two of L-shaped frame side sectional structure schematic diagram of the utility model.

[0019] In the drawing: 101, bottom plate;102, L-shaped frame;103, extrusion spring;201, roller;202, center shaft;203, connecting bearing;301, vertical plate;302, limiting sliding block;303, limiting slot;401, vertical rod;402, movable hole;501, external thread groove;502, locking nut;601, plug hole;602, mounting bolt;603, countersunk hole. CONCRETE IMPLEMENTATION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] The utility model provides a kind of double pulley assembly for elevator door as shown in Figs. 1-3 It is connected with the elevator door through the supporting mechanism, and then the pulley mechanism can be attached to the track through the cooperation of the pulley mechanism, so that the elevator door moves more smoothly.

[0022] In a preferred embodiment, the supporting mechanism is arranged below the pulley mechanism, and the supporting mechanism includes a bottom plate 101. The bottom plate 101 is arranged above an L-shaped frame 102. The pulley mechanism is installed on the front face of the L-shaped frame 102. An extrusion spring 103 is arranged between the bottom plate 101 and the L-shaped frame 102. A guide mechanism is arranged between the L-shaped frame 102 and the bottom plate 101. The bottom plate 101 is directly fixed with the elevator door. Then, through the elastic action of the extrusion spring 103, the extrusion spring 103 is always extruded against the L-shaped frame 102, so that the pulley mechanism installed on the L-shaped frame 102 can stably abut against the slide rail, thereby enabling the elevator door to move more smoothly and improving the stability of the pulley mechanism in operation.

[0023] The pulley mechanism includes a roller 201 arranged on the front face of the L-shaped frame 102. A central shaft 202 is fixedly connected to the front face of the L-shaped frame 102. A connecting bearing 203 is sleeved on the outer wall of the central shaft 202. The roller 201 is sleeved on the outer wall of the connecting bearing 203. Through the connecting bearing 203, the roller 201 can stably rotate outside the central shaft 202. At the same time, through the fixed arrangement of the central shaft 202 and the L-shaped frame 102, the position of the roller 201 relative to the L-shaped frame 102 is fixed, thereby improving the stability of the roller 201 in use.

[0024] The guide mechanism includes a vertical plate 301 fixedly connected to the front face of the bottom plate 101. A limiting slot 303 is formed in the back face of the vertical plate 301. A limiting sliding block 302 is fixedly connected to the front face of the L-shaped frame 102. The outer wall of the limiting sliding block 302 is slidingly connected to the inner wall of the limiting slot 303. The vertical plate 401 is fixed to the bottom plate 101. Then, through the mutual limiting and guiding arrangement of the limiting slot 303 and the limiting sliding block 302, the L-shaped frame 102 can only stably move up and down, so that the roller 201 cannot move horizontally, thereby avoiding the deviation of the roller 201 and further improving the stability of the roller 201 in use.

[0025] The top end of the bottom plate 101 is fixedly connected with a vertical rod 401, the top end of the L-shaped frame 102 is provided with a movable hole 402, the outer wall of the vertical rod 401 is movably inserted into the inner wall of the movable hole 402, the extrusion spring 103 is sleeved on the outer wall of the vertical rod 401, the top end of the L-shaped frame 102 is provided with a limiting mechanism, the setting of the vertical rod 401 enables the L-shaped frame 102 to stably ascend and descend, and the vertical rod 401 can limit the extrusion spring 103, so that the lateral deformation of the extrusion spring 103 is avoided when the extrusion spring 103 is compressed, thereby improving the stability of the extrusion spring 103 in use, and the height of the vertical rod 401 is consistent with the height of the vertical plate 301, so that the use of the vertical rod 401 does not affect the use of the roller 201, thereby ensuring the stability of the roller 201 in use.

[0026] The limiting mechanism comprises a locking nut 502, the locking nut 502 is sleeved on the outer wall of the vertical rod 401, the locking nut 502 is arranged above the L-shaped frame 102, the end portion of the vertical rod 401 is provided with an external thread groove 501, the inner wall of the locking nut 502 is engaged with the outer wall of the external thread groove 501, after the L-shaped frame 102 is sleeved on the outer wall of the vertical rod 401 through the movable hole 402, the locking nut 502 is taken, the locking nut 502 is screwed on the end portion of the vertical rod 401, so that the outer wall of the external thread groove 501 is engaged with the inner wall of the locking nut 502, thereby fixing the locking nut 502 on the end portion of the vertical rod 401, so that the L-shaped frame 102 is prevented from being separated from the end portion of the vertical rod 401, thereby improving the stability of the L-shaped frame 102 in use, and enabling the roller 201 to stably work in close contact with the sliding rail.

[0027] The bottom end of the bottom plate 101 is provided with a plug hole 601, the plug hole 601 is movably inserted with a mounting bolt 602, the top end of the bottom plate 101 is provided with a countersunk hole 603, the inside of the countersunk hole 603 is communicated with the inside of the plug hole 601, when the roller 201 is used, the extrusion spring 103 is sleeved on the outer wall of the vertical rod 401, then the L-shaped frame 102 is taken, the vertical rod 401 is inserted into the movable hole 402, and the L-shaped frame 102 is pressed down, then the locking nut 502 is taken, the locking nut 502 is screwed on the end portion of the vertical rod 401, so that the locking nut 502 is fixed on the vertical rod 401, at this time, the bottom plate 101 can be connected with the elevator door, in the connecting process, the mounting bolt 602 is sequentially inserted into the countersunk hole 603 and the plug hole 601, and the mounting bolt 602 is screwed into the mounting hole on the elevator door, so that the pulley assembly can be fixed with the elevator door, and the pulley assembly can stably work.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A double pulley assembly for an elevator door, characterized by Include: Pulley mechanism; Support mechanism, the support mechanism is arranged below the pulley mechanism, the support mechanism includes the bottom plate (101), the top of the bottom plate (101) is arranged in the L-shaped frame (102), the pulley mechanism is installed on the front of the L-shaped frame (102), the bottom plate (101) and the L-shaped frame (102) are provided with extrusion springs (103), and the L-shaped frame (102) is provided with a guide mechanism between the bottom plate (101).

2. A dual pulley assembly for an elevator door as defined in claim 1, wherein, The pulley mechanism includes a roller (201), the roller (201) is arranged on the front of the L-shaped frame (102), the front of the L-shaped frame (102) is fixedly connected with a center shaft (202), the outer wall of the center shaft (202) is sleeved with a connecting bearing (203), and the roller (201) is sleeved on the outer wall of the connecting bearing (203).

3. The dual pulley assembly for an elevator door of claim 1, wherein, The guide mechanism includes a vertical plate (301), the back of the vertical plate (301) is fixedly connected with the front of the bottom plate (101), the back of the vertical plate (301) is provided with a limiting groove (303), the front of the L-shaped frame (102) is fixedly connected with a limiting sliding block (302), and the outer wall of the limiting sliding block (302) is slidably connected with the inner wall of the limiting groove (303).

4. The dual pulley assembly for an elevator door of claim 1, wherein, The top end of the bottom plate (101) is fixedly connected with a vertical rod (401), the top end of the L-shaped frame (102) is provided with a movable hole (402), the outer wall of the vertical rod (401) is movably inserted into the inner wall of the movable hole (402), the extrusion spring (103) is sleeved on the outer wall of the vertical rod (401), and the top end of the L-shaped frame (102) is provided with a limiting mechanism.

5. The dual pulley assembly for an elevator door of claim 4, wherein, The limiting mechanism includes a locking nut (502), the locking nut (502) is sleeved on the outer wall of the vertical rod (401), the locking nut (502) is arranged above the L-shaped frame (102), the end of the vertical rod (401) is provided with an external thread groove (501), and the inner wall of the locking nut (502) is engagedly connected with the outer wall of the external thread groove (501).

6. The dual pulley assembly for an elevator door of claim 1, wherein, The bottom end of the bottom plate (101) is provided with a bushing (601), the inner wall of the bushing (601) is movably inserted into the mounting bolt (602), the top end of the bottom plate (101) is provided with a countersunk hole (603), and the inside of the countersunk hole (603) is communicated with the inside of the bushing (601).

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