Elevator pit supporting rod assembly with smaller occupied space

Abstract

The utility model discloses an elevator pit stay bar component occupying smaller space, which comprises a support bar, a support and a stay rope, the support bar is movably mounted on the support, the lower portion of the support bar is movably connected with the support so as to rotate towards one side relative to the support, a rocker arm is mounted on the support, one end of the rocker arm is connected with the support bar, and the other end of the rocker arm is connected with the stay rope. The inhaul cable extends downwards to the bottom end along the support and then is led out from the bottom of the support, and an elastic reset device is arranged between the rocker arm and the support. According to the structure that the supporting rod is installed through cooperation of the torsional spring and the rocker arm, the whole device is not expanded to the outside except the inhaul cable, the overall size is small, installation is convenient, the requirement for the installation space can be reduced, and installation and arrangement of other structures can be facilitated; and the operation is convenient and smooth, and no extra space is needed. And the overall strength is very high, the elevator car with larger weight can be borne, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator equipment, and in particular to a pit supporting structure that can be used to support an elevator car. Background Art

[0002] Elevators need to be regularly inspected to eliminate hidden dangers and maintain normal operation. They also need to be inspected to eliminate faults when a fault occurs. Especially for villa-type screw elevators, when there is a problem at the bottom of the elevator or maintenance is required, the maintenance operation is more troublesome due to the limited pit space. In the past, the elevator was generally lifted and then the maintenance work was carried out at the bottom of the elevator, but the risk of such operation is relatively large. In the event of the elevator car falling, it is very likely to cause a safety accident. For this reason, the applicant has proposed a patent application named "A kind of elevator pit support rod assembly" (CN217516480U), which can support the elevator through the support rod when the elevator car falls due to an abnormality, thereby preventing danger and improving safety. However, existing similar devices including this patent occupy a large space, and a large space is required to open the entire structure during operation, which is not convenient for operation and has certain risks. Utility Model Content

[0003] The utility model aims at the shortcomings of the prior art and provides an elevator pit support rod assembly which has a simpler structure, a more reasonable design, can ensure operation safety and occupies less space.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: an elevator pit support rod assembly that occupies less space, including a support rod, a bracket and a cable, the support rod is movably mounted on the bracket, and is fixed to the guide rail of the elevator through the bracket, and is characterized in that: the lower part of the support rod is movably connected to the bracket to form a structure that can rotate to one side relative to the bracket, a rotatable rocker arm is installed on the bracket, one end of the rocker arm is connected to the support rod, and the other end of the rocker arm is connected to the cable, the cable extends downward along the bracket to the bottom end and then is led out from the bottom of the bracket, and an elastic reset device is arranged between the rocker arm and the bracket.

[0005] Preferably, the rocker arm is of a V-shaped or inverted 7-shaped structure, the upper end of which is assembled and fixed to the middle position of the support rod by a shoulder screw, and the lower end of which is connected and fixed to the cable.

[0006] Furthermore, a rocker arm shaft is arranged at the rotation angle position of the rocker arm, and the rocker arm shaft is assembled and fixed to the bracket by a fixing screw and a shaft sleeve to form a rotating installation structure for the rocker arm.

[0007] Furthermore, a torsion spring is sleeved on the rocker arm shaft to form an elastic reset device, one end of the torsion spring is connected to the upper part of the rocker arm, and the other end is connected to the bracket.

[0008] Furthermore, the lower part of the support rod is assembled with the lower part of the bracket through a latch, a cotter pin and a plurality of washers to form a structure that can rotate around the latch, and the cotter pin is inserted into the front end of the latch to lock the latch.

[0009] Furthermore, the edges on both sides of the upper end of the bracket protrude forward to form a groove-shaped embedded part, and the support rod is embedded in the embedded part when in the retracted state.

[0010] Furthermore, a limit arm is arranged at the lower part of the bracket, and the limit arm extends horizontally in front of the support rod to form a stop limit structure when the support rod is in an extended state.

[0011] Furthermore, a movable wire core is provided inside the cable, and the wire core is connected and fixed to the lower end of the rocker arm.

[0012] The utility model uses a torsion spring and a rocker arm to install the support rod structure, so that the entire device, except for the cable, has no other parts extended to the outside, so the overall size is small, easy to install, can reduce the requirements for installation space, and can facilitate the installation and arrangement of other structures; and it is easy to operate to open and reset smoothly, and the operation is convenient and smooth, and no additional space is required. In addition, the overall strength is very high, and it can withstand a heavier car, improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall structure diagram of the utility model;

[0014] Figure 2 This is the exploded structure diagram of the utility model;

[0015] Figure 3 This is a state diagram of the use process of the utility model after being installed on the elevator guide rail.

[0016] In the figure, 1 is a support rod, 2 is a bracket, 21 is a fitting part, 22 is a limiting arm, 3 is a rocker arm, 31 is a rocker arm shaft, 4 is a torsion spring, 41 is a fixing screw, 42 is a sleeve, 5 is a cable, 51 is a wire core, 6 is a shoulder screw, 7 is a latch, 71 is a cotter pin, 72 is a gasket, and 8 is a guide rail. DETAILED DESCRIPTION

[0017] In this embodiment, refer to Figure 1-Figure 3The elevator pit support rod assembly that occupies a smaller space includes a support rod 1, a bracket 2 and a cable 5. The support rod 1 is movably mounted on the bracket 2 and is fixed to the guide rail 8 of the elevator through the bracket 2 (for example, fixed by screws, rivets, etc.); the lower part of the support rod 1 is movably connected to the bracket 2 to form a structure that can rotate to one side relative to the bracket 2, and a rotatable rocker arm 3 is installed on the bracket 2, one end of the rocker arm 3 is connected to the support rod 1, and the other end of the rocker arm 3 is connected to the cable 5, the cable 5 extends downward along the bracket 2 to the bottom end and then is led out from the bottom of the bracket 2, and no other transition device is required to pull the cable 5 externally; an elastic reset device is arranged between the rocker arm 3 and the bracket 2.

[0018] The rocker arm 3 is an inverted 7-shaped structure (or a V-shaped structure), the upper end of which is assembled and fixed to the middle position of the support rod 1 through a shoulder screw 6, and the lower end of which is connected and fixed to the cable 5.

[0019] A rocker arm shaft 31 is provided at the rotation angle of the rocker arm 3 , and the rocker arm shaft 31 is assembled and fixed to the bracket 2 by a fixing screw 41 and a shaft sleeve 42 to form a rotating installation structure for the rocker arm 3 .

[0020] A torsion spring 4 is sleeved on the rocker arm shaft 31 to form an elastic reset device. One end of the torsion spring 4 is connected to the upper part of the rocker arm 3 , and the other end is connected to the bracket 2 .

[0021] The lower part of the support rod 1 is assembled with the lower part of the bracket 2 through a latch 7, a cotter pin 71 and a plurality of washers 72 to form a structure that can rotate around the latch 7. The cotter pin 71 is inserted into the front end of the latch 7 to lock the latch 7.

[0022] The edges on both sides of the upper end of the bracket 2 protrude forward to form a groove-shaped embedded part 21, and the support rod 1 is embedded in the embedded part 1 when it is in the retracted state to prevent it from moving or shaking.

[0023] A limit arm 22 is provided at the lower part of the bracket 2, and the limit arm 22 extends horizontally in front of the support rod 1 to form a stop limit structure for the support rod 1 when it is extended. It can provide supporting force for the support rod 1 when supporting the car, improve the stability of the support, and further enhance safety.

[0024] The cable 5 has a movable wire core 51 inside, and its structure and principle are similar to those of a bicycle brake wire. The wire core 51 is connected and fixed to the lower end of the rocker arm 3 .

[0025] When the elevator needs to be repaired or modified, the cable 5 is pulled, and the wire core 51 of the cable 5 drives the rocker arm 3 to rotate, and the rocker arm 3 pulls the support rod 1 to tilt forward at a certain angle. At this time, the support rod 1 can support the car or platform above. In this way, in the event of an accident, such as a sudden fall of the car, the operator at the bottom of the car can be protected. When it needs to be reset, just loosen the cable 5, and the rocker arm 3 will rotate back under the action of the torsion spring 4, thereby driving the support rod 1 to rotate and reset until it is embedded in the bracket 2.

[0026] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. An elevator pit support rod assembly that occupies less space, comprising a support rod, a bracket and a cable, wherein the support rod is movably mounted on the bracket and fixed to the guide rail of the elevator through the bracket, characterized in that: The lower part of the support rod is movably connected to the bracket to form a structure that can rotate to one side relative to the bracket. A rotatable rocker arm is installed on the bracket. One end of the rocker arm is connected to the support rod, and the other end of the rocker arm is connected to the cable. The cable extends downward along the bracket to the bottom end and then is led out from the bottom of the bracket. An elastic reset device is arranged between the rocker arm and the bracket.

2. The elevator pit support rod assembly with smaller occupied space according to claim 1, characterized in that: The rocker arm is a V-shaped or inverted 7-shaped structure, the upper end of which is assembled and fixed to the middle position of the support rod through a shoulder screw, and the lower end of which is connected and fixed to the cable.

3. The elevator pit support rod assembly with smaller occupied space according to claim 2, characterized in that: A rocker arm shaft is arranged at the rotation angle position of the rocker arm, and the rocker arm shaft is assembled and fixed to the bracket by a fixing screw and a shaft sleeve to form a rotating installation structure for the rocker arm.

4. The elevator pit support rod assembly with smaller occupied space according to claim 3, characterized in that: A torsion spring is sleeved on the rocker arm shaft to form an elastic reset device, one end of the torsion spring is connected to the upper part of the rocker arm, and the other end is connected to the bracket.

5. The elevator pit support rod assembly with smaller occupied space according to claim 1, characterized in that: The lower part of the support rod is assembled with the lower part of the bracket through a latch, a split pin and a plurality of washers to form a structure that can rotate around the latch. The split pin is inserted into the front end of the latch to lock the latch.

6. The elevator pit support rod assembly with smaller occupied space according to claim 1, characterized in that: The edges on both sides of the upper end of the bracket protrude forward to form a groove-shaped embedded part, and the support rod is embedded in the embedded part when it is in the retracted state.

7. The elevator pit support rod assembly with smaller occupied space according to claim 1, characterized in that: A limit arm is arranged at the lower part of the bracket, and the limit arm extends horizontally in front of the support rod to form a stop limit structure when the support rod is in an extended state.

8. The elevator pit support rod assembly with smaller occupied space according to claim 1, characterized in that: The interior of the cable is provided with a movable wire core, and the wire core is connected and fixed to the lower end of the rocker arm.

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