Elevator maintenance guardrail

Abstract

The utility model relates to an elevator maintenance guardrail which comprises two vertical plates and a hinge rod arranged between the vertical plates, and sliding blocks are arranged on the vertical plates in a sliding mode. The rotating plate is rotationally arranged on the vertical plate; the racks are arranged on the sliding blocks, and the two vertical plates are pulled inwards, so that the sliding blocks drive the racks to move downwards; the action mechanisms are arranged in the vertical plates and move downwards through racks, so that the action mechanisms drive the rotating plates to rotate by 90 degrees, when the two vertical plates are pushed inwards and folded through the arranged action mechanisms, the rotating plates can be changed into a vertical state from a horizontal state, and then the occupied space of the maintenance guardrail when the maintenance guardrail is not used is reduced; and the maintenance guardrail is convenient to carry.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of guardrails, and particularly relates to an elevator maintenance guardrail. BACKGROUND

[0002] During installation and maintenance of the elevator, the elevator cannot work normally, and at this time, a guardrail needs to be placed outside the elevator hall according to elevator safety specifications, so as to prompt passengers to be prohibited from entering the elevator during the period.

[0003] The conventional maintenance guardrail is usually large in size and inconvenient to carry and store, especially in narrow elevator shafts or between floors, therefore, it is particularly important to develop an elevator maintenance guardrail which is easy to carry and small in occupied space. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of elevator maintenance guardrails which are easy to carry and small in occupied space to solve the above problems.

[0005] The utility model achieves the above-mentioned purposes by the following technical solutions:

[0006] An elevator maintenance guardrail includes two vertical plates and a hinged rod arranged between the vertical plates, and a sliding block is slidably arranged on the vertical plate.

[0007] It further includes:

[0008] A rotating plate is rotatably arranged on the vertical plate.

[0009] A rack is arranged on the sliding block, and the sliding block drives the rack to move downward by pulling the two vertical plates inward.

[0010] An action mechanism is arranged in the vertical plate, and the action mechanism drives the rotating plate to rotate 90° by moving the rack downward.

[0011] As a further optimization scheme of the utility model, the action mechanism includes a horizontal rod one, the horizontal rod one is rotatably arranged in the vertical plate, a gear is arranged on the horizontal rod one, a worm is arranged in the vertical plate, a synchronous wheel is arranged on the horizontal rod one and the worm, a synchronous belt is arranged between the synchronous wheels, a horizontal rod two is rotatably arranged in the vertical plate, a worm wheel is arranged on the horizontal rod two, and the worm engages with the worm wheel.

[0012] As a further optimization scheme of the utility model, the horizontal rod two penetrates the side wall of the vertical plate, the rotating plate is rotatably arranged on the vertical plate through the horizontal rod two, and a universal wheel is arranged on one side of the rotating plate.

[0013] As a further optimization scheme of the utility model, the vertical plate is internally provided with a sliding rod, the sliding block is slidably arranged on the vertical plate through the sliding rod, the vertical plate is provided with an avoiding groove, the sliding rod penetrates the vertical plate side wall through the avoiding groove, the rack is on the side of the sliding block, and the rack is engaged with the gear.

[0014] As a further optimization scheme of the utility model, the hinged rod end is rotatable with the vertical plate, the other end of the hinged rod is rotatably connected with the sliding block on the other vertical plate, and the hinged rods are rotatably connected through the pin shafts.

[0015] As a further optimization scheme of the utility model, the vertical plate is rotatably provided with a limiting piece, the limiting piece is provided with a notch, the other vertical plate is provided with a limiting rod, and the limiting piece is connected with the limiting rod through the notch.

[0016] The utility model has the advantages of:

[0017] Different from the prior art, in actual use, when the two vertical plates are pushed inward and folded through the action mechanism, the rotating plate can be changed from a horizontal state to a vertical state, thereby reducing the occupied space of the maintenance guardrail when not in use, and facilitating the carrying of the maintenance guardrail. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the structure schematic diagram of the utility model along Figure 1 The middle L-L direction is cut;

[0020] Figure 3 It is the enlarged structure schematic diagram of the utility model Figure 2 In A place;

[0021] Figure 4 It is the limiting piece structure schematic diagram of the utility model.

[0022] In the figure: 1, vertical plate; 2, hinged rod; 21, pin shaft; 3, rotating plate; 4, universal wheel; 5, action mechanism; 51, cross rod one; 511, gear; 52, worm; 53, cross rod two; 531, worm wheel; 54, synchronous belt; 541, synchronous wheel; 6, sliding block; 61, sliding rod; 62, avoiding groove; 7, rack; 8, limiting piece; 81, limiting rod. DETAILED DESCRIPTION

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] like Figure 1 - Figure 4 As shown, an elevator maintenance guardrail includes two upright plates 1 and a hinge rod 2 disposed between the upright plates 1. A slider 6 is slidably disposed on the upright plates 1. It also includes a rotating plate 3 rotatably disposed on the upright plates 1 and a rack 7 fixedly disposed on the slider 6. By pulling the two upright plates 1 inward, the slider 6 causes the rack 7 to move downward. There is also an actuating mechanism 5 disposed in the upright plates 1. By moving the rack 7 downward, the actuating mechanism 5 causes the rotating plate 3 to rotate 90°.

[0025] The actuating mechanism 5 includes a first crossbar 51, which is rotatably mounted inside the vertical plate 1. A gear 511 is mounted on the first crossbar 51. A worm gear 52 is mounted inside the vertical plate 1. Both the first crossbar 51 and the worm gear 52 are equipped with synchronous pulleys 541. A synchronous belt 54 is mounted between the synchronous pulleys 541. A second crossbar 53 is rotatably mounted inside the vertical plate 1. A worm wheel 531 is mounted on the second crossbar 53. The worm gear 52 meshes with the worm wheel 531, restricting the free rotation of the rotating plate 3. This greatly improves the stability between the vertical plate 1 and the rotating plate 3. The synchronous belt 54 provides sufficient movement space for the rack 7.

[0026] The second crossbar 53 passes through the side wall of the vertical plate 1, and the rotating plate 3 is rotatably mounted on the vertical plate 1 via the second crossbar 53. A caster wheel 4 is provided on one side of the rotating plate 3.

[0027] A sliding rod 61 is provided inside the upright plate 1. The slider 6 is slidably mounted on the upright plate 1 via the sliding rod 61. The upright plate 1 has a clearance groove 62. The sliding rod 61 passes through the clearance groove 62 through the side wall of the upright plate 1. The rack 7 is on one side of the slider 6. The rack 7 meshes with the gear 511. The clearance groove 62 ensures that the slider 6 has sufficient room to move when the hinge rod 2 is opened.

[0028] One end of the hinge rod 2 rotates with the vertical plate 1, and the other end of the hinge rod 2 is rotatably connected to the slider 6 on another vertical plate 1. The hinge rods 2 are rotatably connected to each other by a pin 21.

[0029] A limiting piece 8 is rotatably mounted on the upright plate 1, and a notch is provided on the limiting piece 8. A limiting rod 81 is provided on the other upright plate 1. The limiting piece 8 is connected to the limiting rod 81 through the notch. The limiting rod 81 and the limiting piece 8 are at the same horizontal position. The limiting piece 8 and the limiting rod 81 are used to fix the two upright plates 1 together, so that the hinge rod 2 cannot be opened at will.

[0030] It should be noted that, in use, the elevator maintenance guard, by pushing the two vertical plates 1 inward, at this time the hinge rods 2 are rotated through the pin shafts 21, and the sliding blocks 6 are moved downward, while the sliding blocks 6 are moving, the racks 7 on the sliding blocks 6 drive the gears 511 to rotate, in turn driving the horizontal rods one 51 to rotate, the horizontal rods one 51 drive the worm 52 to rotate synchronously through the synchronous belt 54, in turn driving the worm gears 531 to rotate, so that the rotating plates 3 are deflected, so that the rotating plates 3 are converted from a horizontal state to a vertical state, so that the universal wheels 4 are in contact with the ground, then by connecting the notch on the limiting piece 8 with the limiting rod 81, so that the two vertical plates 1 are connected and fixed, so as to facilitate the carrying of the maintenance guard, and at the same time reduce the space occupied by the maintenance guard.

[0031] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application.

Claims

1. An elevator maintenance barrier comprising two uprights (1) and a hinged bar (2) arranged between the uprights (1), characterized in that: The vertical plate (1) is provided with a sliding block (6) slidingly arranged on the vertical plate (1); Further comprising: A rotating plate (3) is rotatably arranged on the vertical plate (1); A rack (7) is arranged on the sliding block (6), and by pulling the two vertical plates (1) inward, the sliding block (6) drives the rack (7) to move downward. An action mechanism (5) is arranged in the vertical plate (1), and by moving the rack (7) downward, the action mechanism (5) drives the rotating plate (3) to rotate 90°.

2. An elevator maintenance barrier according to claim 1, characterized in that: The action mechanism (5) comprises a horizontal rod (51) rotatably arranged in the vertical plate (1), a gear (511) arranged on the horizontal rod (51), a worm (52) arranged in the vertical plate (1), a synchronous wheel (541) arranged on the horizontal rod (51) and the worm (52), a synchronous belt (54) arranged between the synchronous wheels (541), a horizontal rod (53) rotatably arranged in the vertical plate (1), a worm wheel (531) arranged on the horizontal rod (53), and the worm (52) and the worm wheel (531) are engaged.

3. An elevator maintenance barrier according to claim 2, characterized in that: The horizontal rod (53) penetrates the side wall of the vertical plate (1), the rotating plate (3) is rotatably arranged on the vertical plate (1) through the horizontal rod (53), and a universal wheel (4) is arranged on one side of the rotating plate (3).

4. An elevator maintenance barrier according to claim 2, characterized in that: The vertical plate (1) is provided with a sliding rod (61), the sliding block (6) is slidingly arranged on the vertical plate (1) through the sliding rod (61), the vertical plate (1) is provided with an avoiding groove (62), the sliding rod (61) penetrates the side wall of the vertical plate (1) through the avoiding groove (62), the rack (7) is arranged on one side of the sliding block (6), and the rack (7) and the gear (511) are engaged.

5. An elevator maintenance barrier according to claim 1, characterized in that: One end of the articulated rod (2) is rotatably connected with the vertical plate (1), the other end of the articulated rod (2) is rotatably connected with the sliding block (6) on the other vertical plate (1), and the articulated rods (2) are rotatably connected through a pin shaft (21).

6. An elevator maintenance barrier according to claim 1, characterized in that: A limiting piece (8) is rotatably arranged on the vertical plate (1), a notch is formed in the limiting piece (8), a limiting rod (81) is arranged on the other vertical plate (1), and the limiting piece (8) is connected with the limiting rod (81) through the notch.

Images