Elevator pit maintenance protection device

Abstract

The utility model belongs to the field of construction protection devices, and particularly relates to an elevator pit overhaul protection device which comprises supporting legs. A plurality of supporting legs are arranged; the side faces of the supporting legs are fixedly connected with screw cylinders. The side faces of the adjacent supporting legs are rotationally connected with first screw rods. The first screw rod is inserted into the screw cylinder and is in threaded connection with the screw cylinder; the tops of the supporting legs are slidably connected with hinge bases. Supporting arms are hinged to the tops of the hinge seats, the multiple supporting legs can be folded by reversely rotating the first threaded rods, the supporting legs can be conveniently carried out from a pit, in the initial state, the supporting arms are parallel to the supporting legs, and during installation, the supporting arms can be rotationally unfolded, so that the ends of the supporting arms and the supporting legs are vertically arranged, and the hinge seats and the supporting arms move downwards; and then the tops of the supporting legs are inserted into the supporting arms, so that the supporting legs and the supporting arms are connected, the height can be conveniently reduced by means of hinged arrangement between the supporting legs and the supporting arms, and the elevator can be conveniently carried into an elevator pit.

Description

Technical Field

[0001] The utility model relates to the field of construction protection devices, in particular to an elevator pit maintenance protection device. Background Art

[0002] The elevator pit maintenance protection device refers to a device used to protect elevator maintenance personnel. It is mainly used to prevent the elevator car from falling rapidly due to failure of the braking device or incorrect operation of the maintenance personnel, thereby causing serious life damage to the maintenance personnel at the bottom. It can play a supporting and isolating role.

[0003] At present, China's utility model patent announcement number CN219751565U discloses an elevator pit maintenance protection device, which relates to the field of elevator technology, and improves the problem of life damage to maintenance personnel caused by the rapid descent of the elevator car due to various reasons. The elevator pit maintenance protection device includes a pit and a force plate, the left and right ends of the pit are fixedly connected with a frame, the middle side of the frame is slidably connected with a buffer plate, the middle side of the top of the buffer plate is provided with a push groove, the outer side of the buffer plate relative to the through hole at one end is provided with a limit groove, the opposite side of the limit groove is slidably connected with a limit ring, and the limit ring is fixedly connected with a reset spring at the opposite end. The utility model reduces the speed by colliding with the arc surface at the top of the rubber block, and performs a limit support function on the car, thereby improving the protection effect of the elevator pit maintenance protection device and greatly increasing the life safety of maintenance personnel.

[0004] However, during use, the above-mentioned maintenance and protection device has a large overall size, which makes it inconvenient to carry and place it in the elevator pit, making it inconvenient for staff to use; therefore, an elevator pit maintenance and protection device is proposed to address the above-mentioned problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes an elevator pit maintenance and protection device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes an elevator pit inspection and protection device, comprising a leg; a plurality of legs are provided; a screw barrel is fixedly connected to the side of the leg; the adjacent side of the leg is rotatably connected to a first screw; the first screw is inserted into the screw barrel and threadedly connected thereto; the top of the leg is slidably connected to an articulated seat; the top of the articulated seat is hingedly connected to an arm; the interior of the arm is hollow; the top of the leg is inserted into the arm and slidably connected thereto. Relying on the hinged setting between the leg and the arm, the height can be conveniently reduced and it is convenient to carry it into the elevator pit.

[0007] Preferably, a damper is fixedly connected to the top of the support arm; a buffer seat is fixedly connected to the top of the damper; a buffer spring is fixedly connected to the bottom of the buffer seat and the top of the support arm, and the damper and the buffer spring cooperate to reduce the impact.

[0008] Preferably, the sides of the legs and arms are fixedly connected with support tubes; the sides of the legs and the adjacent sides of the arms are fixedly connected with support rods; the support rods are inserted into the support tubes and slidably connected thereto, and the support rods can slide in the support tubes, which can play a supporting role between the arms and between the legs, thereby enhancing the overall strength.

[0009] Preferably, the sides of the plurality of support arms are rotatably connected to a connecting seat; a slot is provided in the connecting seat; a first strut is slidably connected in the slot; a second strut is slidably connected inside the first strut; adjustment holes are provided on the first strut and the second strut; a bolt is installed in the middle of the adjustment hole, which can play a role of oblique support by relying on the first strut and the second strut.

[0010] Preferably, a limiting rod is fixedly connected to the top of the supporting leg; a limiting groove is provided on the hinge seat; the limiting groove passes through the bottom of the supporting arm; and the limiting rod is slidably connected to the limiting groove.

[0011] Preferably, the bottom end of the leg is rotatably connected to a second screw rod; a support is threadedly connected to the second screw rod; a base is fixedly connected to the support; and the base is L-shaped.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model is provided with a support leg, an articulated seat, a support arm, a first screw and a screw barrel. When in use, the first screw is rotated, and the screw barrel is moved by the action of the first screw thread, so as to adjust the distance between two adjacent support legs. The multiple support legs cooperate to define the corresponding working area. After use, the first screw is rotated in the opposite direction, so that the multiple support legs can be folded together, which is convenient for carrying out from the pit. In the initial state, the support arm and the support leg are parallel. When installing, the support arm can be rotated and unfolded, so that the end of the support arm and the support leg are both vertically arranged, the articulated seat and the support arm are both moved down, and then the top of the support leg is inserted into the support arm, so as to connect the support leg and the support arm. Relying on the articulated setting between the support leg and the support arm, the height can be conveniently reduced, and it is convenient to carry it into the elevator pit.

[0014] 2. The utility model provides a damper, a buffer spring and a buffer seat. During the inspection and maintenance process, when the elevator bridge box falls, the buffer seat will come into contact with the elevator bridge box, and then the damper and the buffer spring will cooperate to reduce the impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the support arm structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the first support rod structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the support arm of the utility model in a folded state;

[0020] Figure 5 It is a structural schematic diagram of the support of the utility model.

[0021] In the figure: 11, support leg; 12, support arm; 13, hinged seat; 14, screw barrel; 15, first screw rod; 21, damper; 22, shock-absorbing spring; 31, support barrel; 32, support rod; 41, limiting rod; 42, limiting groove; 51, connecting seat; 52, first support rod; 53, second support rod; 54, adjustment hole; 61, support seat; 62, base; 63, second screw rod; 7, buffer plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Specific examples are given below.

[0024] See also Figure 1-3As shown, an elevator pit maintenance protection device comprises a leg 11; the leg 11 is provided with a plurality of legs; a screw barrel 14 is fixedly connected to the side of the leg 11; a first screw rod 15 is rotatably connected to the side of the adjacent leg 11; the first screw rod 15 is inserted into the screw barrel 14 and is threadedly connected thereto; a hinge seat 13 is slidably connected to the top of the leg 11; a support arm 12 is hingedly connected to the top of the hinge seat 13; the interior of the support arm 12 is hollow; the top of the leg 11 is inserted into the support arm 12 and is slidably connected thereto; when in use, the staff carries the maintenance protection device to the elevator pit, and then rotates the first screw rod 15, which causes the screw barrel 14 to move forward under the action of the thread. The legs 11 are moved in a row to adjust the distance between two adjacent legs 11. Multiple legs 11 cooperate to define the corresponding working area. After use, the multiple legs 11 can be retracted by rotating the first screw rod 15 in the opposite direction, which is convenient for carrying out from the pit. In the initial state, the arm 12 and the leg 11 are parallel. During installation, the arm 12 can be rotated and unfolded so that the end of the arm 12 and the leg 11 are vertically arranged, and the hinge seat 13 and the arm 12 are moved down. Then the top of the leg 11 is inserted into the arm 12 to connect the leg 11 and the arm 12. Relying on the hinged setting between the leg 11 and the arm 12, it is convenient to reduce the height and facilitate carrying it into the elevator pit.

[0025] Further, such as Figure 1-3 As shown, a damper 21 is fixedly connected to the top of the support arm 12; a buffer seat is fixedly connected to the top of the damper 21; a buffer spring 22 is fixedly connected to the bottom of the buffer seat and the top of the support arm 12; during the maintenance process, when the elevator bridge box falls, the buffer seat will come into contact with the elevator bridge box, and then rely on the damper 21 and the buffer spring 22 to cooperate, which plays a role in reducing the impact, and the damper 21 is one or both of a hydraulic viscous damper 21 and a gas spring damper 21.

[0026] Further, such as Figure 1-2 As shown, the sides of the legs 11 and the arms 12 are fixedly connected with support tubes 31; the sides of the legs 11 and the adjacent sides of the arms 12 are fixedly connected with support rods 32; the support rods 32 are inserted into the support tubes 31 and are slidably connected thereto; when in use, the support rods 32 can slide in the support tubes 31, which can play a supporting role between the arms 12 and between the legs 11, and play a role in enhancing the overall strength; when adjusting the spacing, the support rods 32 can slide in the support tubes 31, so that they are extended or shortened accordingly.

[0027] As further shown in 1 and 3, the sides of the multiple support arms 12 are rotatably connected to a connecting seat 51; a slot is provided in the connecting seat 51; a first strut 52 is slidably connected in the slot; a second strut 53 is slidably connected inside the first strut 52; adjustment holes 54 are provided on the first strut 52 and the first strut 52; a bolt is installed in the middle of the adjustment hole 54; when in use, after adjusting the distance between the support legs 11, the connecting seat 51 can be rotated so that the two diagonal connecting seats 51 are in a straight line, and then the first strut 52 and the second strut 53 are respectively inserted into the two diagonal connecting seats 51, and the first strut 52 and the second strut 53 can play a role of oblique support, and the length of the first strut 52 and the second strut 53 can be adjusted by telescoping, and they are matched with bolts and the adjustment holes 54, so as to fix the first strut 52 and the second strut 53.

[0028] Further, such as Figure 2 and 4 As shown, a limiting rod 41 is fixed to the top of the support leg 11; a limiting groove 42 is provided on the articulated seat 13; the limiting groove 42 passes through the bottom of the support arm 12; the limiting rod 41 is slidably connected to the limiting groove 42; during use, when the articulated seat 13 and the support arm 12 move up and down, the limiting rod 41 is located in the limiting groove 42 and slides, and when folded, the limiting rod 41 can limit the maximum distance that the articulated seat 13 moves upward, thereby reducing the situation of falling off the support leg 11.

[0029] Further, such as Figure 5 As shown, the bottom end of the support leg 11 is rotatably connected to a second screw rod 63; a support 61 is threadedly connected to the second screw rod 63; a base 62 is fixedly connected to the support 61; the base 62 is L-shaped; when in use, the staff can rotate the second screw rod 63, and the second screw rod 63 rotates to drive the support 61 to move, so that the support 61 is against the side wall of the elevator pit, thereby improving the stability of the support leg 11 and reducing the movement, and the base 62 is in contact with the ground, thereby increasing the contact area between the support leg 11 and the ground and improving stability.

[0030] Further, such as Figure 2 As shown, a buffer plate 7 is slidably connected to the top of the buffer seat; an elastic buffer pad is provided on the top side of the buffer plate 7.

[0031] Working principle: when in use, the staff carries the maintenance protection device to the pit of the elevator, and then rotates the first screw rod. The first screw rod moves the screw barrel under the action of the thread to adjust the distance between two adjacent legs. Multiple legs cooperate to define the corresponding working area. After use, the first screw rod is rotated in the opposite direction to make the multiple legs folded, which is convenient for carrying out from the pit. In the initial state, the arm and the leg are parallel. During installation, the arm can be rotated and unfolded so that the end of the arm and the leg are both vertically set, and the hinge seat The support leg and the support arm are both moved down, and then the top of the support leg is inserted into the support arm to connect the support leg and the support arm. Relying on the hinged setting between the support leg and the support arm, the height can be easily reduced and it is convenient to carry it to the elevator pit. During the inspection and maintenance process, when the elevator bridge box falls, the buffer seat will come into contact with the elevator bridge box, and then the damper and the buffer spring will cooperate to reduce the impact. The damper is one or both of the hydraulic viscous damper and the gas spring damper. When in use, the support rod can slide in the support tube, which can play a role between the support arms and the support legs. The support between the legs plays a role in enhancing the overall strength. When adjusting the spacing, the support rod can slide in the support tube so that it is extended or shortened accordingly. When in use, after adjusting the distance between the legs, the connecting seat can be rotated so that the two diagonal connecting seats are in a straight line. Then, the first support rod and the second support rod are respectively inserted into the two connecting seats located at the diagonals. The first support rod and the second support rod can play a role in oblique support. The length of the first support rod and the second support rod can be adjusted telescopically. They are matched through bolts and adjustment holes, so as to fix the first support rod and the second support rod. During the up and down movement of the articulated seat and the support arm, the limit rods are all located in the limit grooves for sliding. When folded, the limit rod can limit the maximum distance of the articulated seat moving upward, so as to reduce the situation of falling off from the leg. The staff can rotate the second screw, and the second screw rotates to drive the support to move, so that the support is against the side wall of the elevator pit, thereby improving the stability of the leg and reducing the movement. The base is in contact with the ground, so as to increase the contact area between the leg and the ground and improve stability.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An elevator pit maintenance and protection device, comprising a support leg (11); a plurality of the support legs (11) are provided; and the characteristics are: A screw barrel (14) is fixedly connected to the side of the supporting leg (11); a first screw rod (15) is rotatably connected to the side of the adjacent supporting leg (11); the first screw rod (15) is inserted into the screw barrel (14) and is threadedly connected thereto; the top of the supporting leg (11) is slidably connected to a hinge seat (13); the top of the hinge seat (13) is hingedly connected to a supporting arm (12); the interior of the supporting arm (12) is hollow; the top of the supporting leg (11) is inserted into the supporting arm (12) and is slidably connected thereto.

2. An elevator pit maintenance and protection device according to claim 1, characterized in that: The top of the support arm (12) is fixedly connected to a damper (21); the top of the damper (21) is fixedly connected to a buffer seat; the bottom of the buffer seat and the top of the support arm (12) are fixedly connected to a buffer spring (22).

3. An elevator pit maintenance and protection device according to claim 2, characterized in that: The side surfaces of the supporting legs (11) and the supporting arms (12) are both fixedly connected with supporting tubes (31); the side surfaces of the supporting legs (11) and the adjacent side surfaces of the supporting arms (12) are both fixedly connected with supporting rods (32); the supporting rods (32) are inserted into the supporting tubes (31) and are slidably connected thereto.

4. An elevator pit maintenance and protection device according to claim 3, characterized in that: The sides of the plurality of support arms (12) are rotatably connected to a connecting seat (51); a slot is provided in the connecting seat (51); a first support rod (52) is slidably connected in the slot; a second support rod (53) is slidably connected inside the first support rod (52); an adjustment hole (54) is provided on the first support rod (52) and the second support rod (53); a bolt is installed in the middle of the adjustment hole (54).

5. The elevator pit maintenance and protection device according to claim 4 is characterized in that: The top of the support leg (11) is fixedly connected to a limiting rod (41); the hinge seat (13) is provided with a limiting groove (42); the limiting groove (42) passes through the bottom of the support arm (12); the limiting rod (41) is slidably connected to the limiting groove (42).

6. An elevator pit maintenance and protection device according to claim 5, characterized in that: The bottom end of the support leg (11) is rotatably connected to a second screw rod (63); a support (61) is threadedly connected to the second screw rod (63); a base (62) is fixedly connected to the support (61); and the base (62) is L-shaped.

Images