Portable elevator jigger

Abstract

The utility model discloses a portable elevator jigger, and belongs to the technical field of elevator parts. Comprising a support and a sliding frame capable of sliding along the support, a rotating seat is hinged to the sliding frame and connected with a gear through a transmission shaft, and handles are arranged at the two ends of the support and face the opposite direction of the transmission shaft. The rotating seat can be folded to be parallel to the support relative to the sliding frame connected with the rotating seat, and is clamped with the sliding frame. Compared with the prior art, the utility model has two use states, and can meet the application requirements of different use scenes. The foldable design is adopted, the size is relatively small after folding, and carrying is convenient.

Description

Technical Field

[0001] This utility model relates to a portable turning mechanism and belongs to the field of elevator component technology. Background Technology

[0002] In the elevator machine room, the manual turning mechanism is an indispensable safety device. The manual turning mechanism is used to drive the main machine to rotate when people are trapped in the elevator, thereby stopping the car in the corresponding position to facilitate rescue.

[0003] An elevator turning cart mainly consists of a disc and a drive shaft. The drive shaft has gears that mesh with gears on the traction sheave of the main elevator to drive its rotation. For traction elevators, the turning cart is usually suspended in the machine room. However, escalators also require a turning cart, which is typically carried by maintenance personnel when needed.

[0004] Most existing turntables are disc-shaped, and the drive shaft and turntable are vertically fixed, making them inconvenient for maintenance personnel to carry. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a portable elevator trolley, which solves the technical problem that existing trolleys are inconvenient to carry.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A portable elevator trolley includes a support frame and a sliding frame that can slide along the support frame. The sliding frame is hinged to a rotating seat, which is connected to a gear via a drive shaft. The support frame is also provided with handles at both ends, with the handles facing in the opposite direction to the drive shaft.

[0008] The rotating seat can be folded relative to the connected sliding frame to a state parallel to the bracket and engaged with the sliding frame therein;

[0009] A positioning device is also provided between the sliding frame and the support.

[0010] Preferably, the aforementioned portable elevator trolley has a U-shaped support frame.

[0011] Preferably, in the aforementioned portable elevator trolley, the positioning device is connected to the sliding frame via a screw threaded to a top screw. When the sliding frame is locked relative to the bracket, the end of the top screw is connected to the bracket.

[0012] Preferably, in the aforementioned portable elevator trolley, one of the sliding frames is equipped with a retaining ring, and when the rotating seat is folded relative to the connected sliding frame to a state parallel to the support, the drive shaft engages with the retaining ring.

[0013] Preferably, in the aforementioned portable elevator trolley, the rotating seat and the sliding frame are also connected by locking screws.

[0014] Preferably, in the aforementioned portable elevator trolley, the sliding frame is also provided with a retaining ring, and when the sliding frame is in the middle position of the support, one end of the sliding frame contacts the retaining ring.

[0015] Beneficial effects achieved by the utility model:

[0016] Compared to existing technologies, this invention has two usage states, which can meet the application needs of different usage scenarios. This invention adopts a foldable design, and its size is relatively small after folding, making it easy to carry. Attached Figure Description

[0017] Figure 1 This is the overall structure of the utility model Figure 1 (Expanded state);

[0018] Figure 2 This is the overall structure of the utility model Figure 2 (Expanded state);

[0019] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is the overall structure of the utility model Figure 3 (In the unfolded state with the sliding frame located at one end of the support);

[0021] Figure 5 This is a diagram of the folded state of this utility model.

[0022] The meanings of the reference numerals in the figure are as follows: 1-Bracket; 2-Sliding bracket; 3-Setting screw; 4-Snap ring; 5-Rotating seat; 6-Drive shaft; 7-Gear; 8-Handle; 9-Retaining ring; 10-Locking screw. Detailed Implementation

[0023] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] like Figures 1 to 5 As shown: This embodiment discloses a portable elevator trolley, the main body of which consists of a bracket 1, three sliding frames 2, and a gear 7 for driving the elevator host. The bracket 1 is generally rectangular, with a relatively long length, typically 60-80cm, and a width typically 10-15cm. Of the three sliding frames 2, the middle sliding frame 2 has a rotatable rotating base 5, whose rotation axis is parallel to the side of the rectangular bracket with the shorter side length. The rotating base 5 has a vertically designed drive shaft 6, the end of which is a gear 7.

[0025] The sliding brackets 2 at both ends have handles 8, and the handles 8 and the rotating seat 5 are located on opposite sides of the bracket 1. One of the sliding brackets 2 has a flexible retaining ring 4, the inner edge of which has an arc with a curvature greater than 180 degrees, used to hold the drive shaft 6.

[0026] All three sliding frames 2 are designed with set screws 3, which can lock the position of the sliding frame 2 relative to the support 1. There is also a retaining ring 9 near the center of the support 1. When the middle support 1 contacts the retaining ring 9, the sliding frame 2 is exactly in the center of the support 1.

[0027] When the rotating seat 5 is kept in a parallel state with the sliding frame 2, the end of the rotating seat 5 can be locked by the locking screw 10 (the side of the rotating seat 5 has a corresponding positioning hole).

[0028] This design has two usage methods, such as Figure 1 and Figure 2 As shown, the sliding bracket 2 in the middle is located at the center of the support 1, while the sliding brackets 2 at both ends are located at the ends of the support 1. In other words, in this state, the two sliding brackets 2 at the ends are symmetrically distributed with the sliding bracket 2 in the middle position as the center. This state is suitable for applications with low or moderate torque, and is also the most commonly used application scenario.

[0029] The second usage scenario is: Figure 4 In this state, when a larger torque is required for the turning gear, slide the middle sliding frame to one end closer to the support 1, and operate the handle 8 at the other end with both hands simultaneously, thus increasing the lever arm. Furthermore, the handle 8 is designed as a hollow steel tube, facilitating the insertion of the extension rod.

[0030] When not in use, loosen the locking screw 10. Rotate the drive shaft 6 until it is engaged inside the retaining ring 4. In this state, the drive shaft 6 rotates to a position approximately parallel to the bracket 1, making it very easy to store and carry.

[0031] Compared to existing technologies, this design has two usage modes to meet the application needs of different scenarios. The design is foldable, resulting in a relatively small size when folded, making it easy to carry.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A portable elevator trolley, characterized in that, Includes a bracket (1) and a sliding frame (2) that can slide along the bracket (1). The sliding frame (2) is hinged to a rotating seat (5). The rotating seat (5) is connected to a gear (7) via a drive shaft (6). The bracket (1) is also provided with handles (8) at both ends. The handles (8) are oriented opposite to the drive shaft (6). The rotating seat (5) can be folded relative to the connected sliding frame (2) to a state parallel to the support (1) and engaged with the sliding frame (2); A positioning device is also provided between the sliding frame (2) and the support (1).

2. The portable elevator car according to claim 1, characterized in that, The bracket (1) is U-shaped.

3. The portable elevator car according to claim 1 or 2, characterized in that, The positioning device is connected to the sliding frame (2) by a set screw (3) threadedly. When the sliding frame (2) is locked relative to the bracket (1), the end of the set screw (3) is connected to the bracket (1).

4. The portable elevator car according to claim 1, characterized in that, One of the sliding frames (2) is provided with a retaining ring (4). When the rotating seat (5) is folded relative to the connected sliding frame (2) to a state parallel to the support (1), the drive shaft (6) is engaged with the retaining ring (4).

5. The portable elevator car according to claim 1, characterized in that, The rotating seat (5) and the sliding frame (2) are also connected by a locking screw (10).

6. The portable elevator car according to claim 1, characterized in that, The sliding frame (2) is also provided with a retaining ring (9). When the sliding frame (2) is in the middle position of the support (1), one end of the sliding frame (2) is in contact with the retaining ring (9).

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