TWI736964B - Lifting height safety setting device of elevator - Google Patents

Abstract

A safety setting device for the lifting height of an elevator. The elevator supports a telescopic tube set to maintain verticality with an auxiliary tripod. The telescopic tube set includes an outer tube and a plurality of sets of ties arranged in the outer tube and passed through each other in sequence Pipe fittings, the smallest diameter of the sleeve fitting is defined as a jacking pipe; the telescopic tube set is controlled by a power-controlled cable to control its telescopic action; the jacking pipe is provided with at least one adjustment hole that directly penetrates the sleeve of the jacking pipe The pipe is provided with a long hole with a stopper in the longitudinal direction of the pipe wall, and the other sleeve pipe fittings and the pipe wall of the outer pipe are provided with a longitudinal opening with an open upper end; a safety pin passes through all the longitudinal openings and the The position-limiting long hole is positioned at the adjusting hole, and can also be separated from the adjusting hole. The lifting stroke of the jacking pipe is controlled by the safety pin to improve the safety of the elevator.

Description

Lifting height safety setting device of elevator

The present invention is related to elevators, and more specifically, it relates to a safety setting device for the lift height of the elevators.

When installing heavy objects on high places (for example, when installing an air conditioner), you can use a lift such as that shown in the patent M581588 of the Republic of China. The elevator includes: a telescopic tube set, in which a plurality of sleeve pipe fittings are arranged in an outer tube, and an auxiliary foot frame is locked on the outer tube of the telescopic tube set to support the telescopic tube set orthogonally. On a supporting surface; a pulley block, including a plurality of pulleys, which are distributed and installed on the set of pipe fittings; a power source, fixed to the outer tube of the telescopic pipe set, and each of the pulleys is wound through a cable. A platform is provided on the top surface of the sleeve pipe fitting with the smallest inner diameter in the telescopic tube group, and a heavy object (such as an air conditioner) can be stably loaded on the platform. Through the power source and the pulley group, the telescopic tube group is moved up and down to load the platform and the heavy objects on it.

The telescopic tube set must be orthogonal to the supporting surface, and the angle must not be offset at all. Otherwise, the higher the lifting height of the sleeve tube, the greater the cumulative amount of angular deviation, which will cause the elevator's center of gravity to shift and there is a risk of tipping. Therefore, when all sets of pipe fittings and jacking pipes are fully lifted and the lift has reached the limit height range, the lift stroke should be paid attention to.

In order to solve the above-mentioned problems, the present invention provides a lift height safety setting device Set.

Technical features of the invention:

A safety setting device for the lifting height of an elevator, the elevator comprising: a telescopic tube set, the telescopic tube set includes an outer tube and a plurality of sets of pipe fittings arranged in the outer tube and sequentially threaded through each other, the smallest diameter of the The sleeve fitting is defined as a jacking pipe; an auxiliary tripod, which is locked on the outside of the outer tube and set on a supporting surface, the auxiliary tripod keeps the telescopic tube set vertical; a pulley set including several pulleys, Distributed and installed on the set of pipe fittings and the jacking pipe; a power source, fixed on the outside of the outer pipe, with a reduction winch to control a cable around each pulley; the jacking pipe is provided with a platform, and the platform is used for loading A heavy object; characterized in that: the elevator includes a safety setting device, the safety setting device includes: at least one adjustment hole provided in the pipe wall of the top pipe, the adjustment hole is distributed along the longitudinal direction of the top pipe; and the top pipe The sleeve of the pipe fitting that directly penetrates the sleeve is provided with a restricting long hole in the longitudinal direction of the pipe wall, and the top of the restricting long hole is provided with a stopper; the remaining sleeves of the pipe fitting and the outer pipe are provided with an upper end opening The longitudinal openings; all the longitudinal openings and the limiting long holes correspond to each other in the radial direction of the telescopic tube group, and the axial direction is aligned with the adjusting hole; a safety pin passes through all the longitudinal openings and the limiting long hole The positioning in the adjusting hole can also be separated from the adjusting hole.

Efficacy of the invention:

The lift of the jacking pipe and the set of pipe fittings is changed according to the actual operating environment. In any case, the safety setting device can set the jacking stroke of the pipe jacking when the jacking is required. Especially when all sleeve pipe fittings and jacking pipes are fully lifted, it means that the elevator has entered the lifting limit range. The present invention uses the safety setting device to appropriately adjust the lifting height of the jacking pipe to reduce Less angular deviation accumulation improves the safety of the elevator.

10‧‧‧Telescopic tube set

11‧‧‧Outer tube

12‧‧‧Sleeve fittings

14‧‧‧Pipe jacking

20‧‧‧Auxiliary tripod

30‧‧‧Pulley block

50‧‧‧Safety setting device

51‧‧‧Adjusting hole

511‧‧‧Flaring

52‧‧‧Limiting Long Hole

521‧‧‧stop

53‧‧‧Longitudinal opening

31‧‧‧Pulley

33‧‧‧Cable

40‧‧‧Power source

41‧‧‧Deceleration winch

54‧‧‧Safety Tip

55‧‧‧Thread

56‧‧‧Bounce card components

561‧‧‧round beads

562‧‧‧Spring

Figure 1 is a perspective view of the elevator of the present invention.

Figure 2 is a perspective view of the cable temporarily removed by the elevator of the present invention.

Figure 3 is an exploded view of the top pipe and sleeve fittings of the telescopic pipe set of the present invention.

Figure 4 is an exploded view of the combined appearance of the jacking pipe and the sleeve fitting of the present invention and the safety tip.

Figure 5 is one of the appearance drawings of the combination of the jacking pipe, the sleeve fittings, and the safety pin of the present invention.

Figure 6 is the second appearance of the combination of the jacking pipe, the sleeve fittings and the safety pin of the present invention.

Figure 7 is the third appearance of the combination of the jacking pipe, the sleeve fittings and the safety pin of the present invention.

Figure 8 is an external view of the first example of the safety tip of the present invention.

Figure 9 is an external view of the second example of the safety tip of the present invention.

Figure 10 is a schematic cross-sectional view of the first example of the combination of the safety pin and the jacking pipe of the present invention.

Figure 11 is a schematic cross-sectional view of the second example of the combination of the safety pin and the jacking pipe of the present invention.

In order to facilitate the description of the central idea of the present invention expressed in the column of the above-mentioned summary of the invention, specific embodiments are used to express it. The various objects in the embodiment are drawn according to the proportion, size, deformation or displacement suitable for explanation, rather than drawn according to the proportion of the actual element, which will be described first. In the following description, the same and symmetrically arranged elements are denoted by the same numbers.

As shown in Figure 1, the elevator of the present invention includes: a telescopic tube group 10, a plurality of sleeve pipe fittings 12 are arranged in an outer pipe 11 in order to pass through each other, the smallest diameter sleeve pipe fitting is defined as the jacking pipe 14; an auxiliary The tripod 20 is locked on the outside of the outer tube 11 of the telescopic tube set 10, and locked on the outer tube 11 Outside, and set up on a supporting surface (not shown), the auxiliary tripod 20 keeps the telescopic tube set 10 vertical; a pulley set 30 includes a plurality of pulleys 31, which are distributed and installed on the set of pipe fittings 12 and the top Tube 14; a power source 40, fixed to the outer tube 11, with a reduction winch 41 to control a cable 33 around each pulley 31. The top pipe 14 is provided with a platform (not shown in the figure), and a heavy object (not shown in the figure) can be stably loaded on the platform. Through the power source 40 and the pulley block 30, the telescopic tube set 10 is moved up and down to load the platform and the heavy objects on it.

As shown in Figures 2 and 3, the present invention uses a safety setting device 50 to enhance the safety of the elevator. The safety setting device 50 includes: at least one adjustment hole 51 penetrating or not penetrating the pipe wall of the top pipe 14. In this embodiment, a plurality of adjustment holes 51 are distributed along the longitudinal interval of the top pipe 14 as an embodiment ( But it is not limited to this); The sleeve pipe fitting 12 that directly passes through the jack 14 is provided with a limiting slot 52 in the longitudinal direction of the tube wall, and a stop portion 521 is provided at the top of the limiting slot 52; The remaining pipe fittings 12 and the wall of the outer tube 11 are provided with a longitudinal opening 53 with an open upper end; all the longitudinal openings 53 and the limiting long holes 52 correspond to each other in the radial direction of the telescopic tube set 10, and The axis direction is aligned with the adjusting hole 51; a safety pin 54 can be positioned in the adjusting hole 51 through all the longitudinal openings 53 and the limiting long hole 52, and can also be detached from the adjusting hole 51.

As shown in Figs. 5-7, when the jacking pipe 14 executes a lifting stroke, the safety pin 54 defined in one of the adjusting holes 51 rises with the jacking pipe 14 and moves along the limiting long hole 52, Until it is blocked by the blocking portion 521, the jacking pipe 14 no longer executes the lifting stroke, the pulley block 30 and the cable 33 are restricted, the power source 40 and the reduction winch 41 should be connected with the clutch (not shown in the figure) ) To stop acting. The safety pin 54 is positioned at different adjusting holes 51, and the length of the lifting stroke of the jacking pipe 14 can be controlled. The lower the safety pin 54 is positioned on the adjustment hole 51, the longer the lifting stroke of the jack 14; The higher the pin 54 is positioned at the adjusting hole 51, the shorter the lifting stroke of the jacking pipe 14 is.

The solution for positioning the safety pin 54 in the adjusting hole 51 includes the solution shown in FIGS. 8 and 10, where the safety pin 54 and the adjusting hole 51 are combined by a thread 55. Or as shown in Figures 9 and 11, the safety pin 54 includes an elastic snap element 56 arranged in its interior that can be actuated radially and elastically. The spring 562 of the ball 561; the inner end and the outer end of the adjusting hole 51 are respectively provided with a flared flaring 511 for pressing back the elastic element 56 so that the elastic element 56 enters or leaves the adjusting hole 51; the After the safety pin 54 enters the adjusting hole 51, the elastic clip element 56 is reset to prevent the safety pin 54 from easily escaping from the adjusting hole 51.

In summary, according to conditions such as resistance, load weight, center of gravity position, working height, etc., the lift of the jacking pipe 14 and the sleeve fitting 12 is changed according to the actual operating environment. In any case, when the jacking 14 is required In the case of lifting, the safety setting device 50 can set the lifting stroke of the jacking pipe 14 according to the actual working height requirement. Especially when all the sleeve pipe fittings 12 and the jacking pipe 14 are fully lifted, it means that the elevator has entered the lifting limit range. The present invention uses the safety setting device 50 to appropriately adjust the lifting height of the jacking pipe 14 to reduce the lift in the elevator. Accumulation of the angular deviation generated during the lifting limit range improves the safety of the elevator.

12‧‧‧Sleeve fittings

14‧‧‧Pipe jacking

31‧‧‧Pulley

52‧‧‧Limiting Long Hole

54‧‧‧Safety Tip

Claims (4)

A safety setting device for the lifting height of an elevator, the elevator comprising: a telescopic tube set, the telescopic tube set includes an outer tube and a plurality of sets of pipe fittings arranged in the outer tube and sequentially threaded through each other, the smallest diameter of the The sleeve fitting is defined as a jacking pipe; an auxiliary tripod, which is locked on the outside of the outer tube and set on a supporting surface, the auxiliary tripod keeps the telescopic tube set vertical; a pulley set including several pulleys, Distributed and installed on the set of pipe fittings and the jacking pipe; a power source, fixed on the outside of the outer pipe, with a reduction winch to control a cable around each pulley; the jacking pipe is provided with a platform, and the platform is used for loading A weight; characterized in that: the elevator includes a safety setting device, the safety setting device includes: at least one adjustment hole provided on the pipe wall of the top pipe; The wall is longitudinally provided with a restricting long hole, and the top of the restricting long hole is provided with a stopper; the rest of the sleeve pipe fitting and the pipe wall of the outer tube are provided with a longitudinal opening with an open upper end; all the longitudinal openings and the restricting The position oblong holes correspond to each other in the radial direction of the telescopic tube set, and the axial direction is aligned with the adjustment hole; a safety pin passes through all the longitudinal openings and the limit oblong holes to be positioned in the adjustment hole, and can also be moved from the The adjustment hole is detached. According to claim 1, the lift height safety setting device of the elevator, wherein the safety pin and the adjusting hole are screwed together. According to claim 1, the lift height safety setting device of the elevator, wherein the safety pin includes a spring clip element which is arranged inside the safety pin and can be actuated radially and elastically, and the inner end and the outer end of the adjusting hole are respectively provided for pressing Withdraw the elastic card element so that the elastic card element passes through the flared opening of the adjusting hole. According to claim 3, the lift height safety setting device, wherein the elastic element is a ball and a spring for holding the ball.

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