A linkage cable protection device for construction hoist

Abstract

The invention discloses a linkage type protective device for a construction elevator, belonging to the field of construction elevators. The device is characterized in that it comprises a protective ring opening and closing control device, a protective ring, a crossbeam, a fixing frame, a steel wire rope, a large spring device, a movable frame, a pulley, a trapezoidal rail, etc.; when the pulley is placed on the trapezoidal rail, the protective ring is opened; when the pulley leaves the trapezoidal rail, the protective ring is closed, thereby implementing linkage protection; the device can avoid safety hazards such as cable damage or electric leakage caused by cable swinging and hanging collision, thereby improving the safety production measures and guarantees of the construction elevator and facilitating construction.

Description

Technical Field

[0001] The invention relates to a construction hoist linkage type cable protection device, belonging to the field of building construction. Background Art

[0002] At present, the cables of some construction elevators are arranged from inside the car. Since arranging the cables in the car can cause the risk of electric shock, some cables are arranged outside the car. Usually, when the cables are arranged outside the car, no other protective measures are set. The construction cables are hung outside the car and as the car rises or lowers, in windy weather, the cables drift with the wind, which can easily cause entanglement or collision, resulting in cable damage or leakage, causing inconvenience to production safety and affecting construction progress. In order to overcome this hidden danger and unfavorable factors and create better conditions for construction, the present invention proposes a new technical solution. Summary of the Invention

[0003] The technical solution proposed by the present invention is a construction elevator linkage cable protection device, which is characterized in that it includes a protection ring opening and closing device, a crossbeam, a steel wire rope, a large spring device, a movable frame, a fixed frame, and a trapezoidal rail. The protection ring opening and closing device includes: a supporting plate, a small spring, a limiting device, and a protection ring; the protection ring is composed of two cranks connecting two semicircular arc frames or geometric frames respectively, and a connecting piece is provided at the overlapping part of the two cranks for movable connection; the large spring device includes a large spring, a spring front seat, a sleeve device, and a spring middle seat; the spring front seat and the spring middle seat are horizontally connected to the fixed frame; The beam connects the protective ring opening and closing device, the fixed frame, and the spring front seat. One end of the steel wire rope is connected to the crank, and the other end is connected to the large spring device or the movable frame. A pulley is set at one end of the movable frame, and the other end is connected to the large spring device. The trapezoidal rail includes: a trapezoidal rail top, a trapezoidal rail inclined surface, a support plate, or a connecting base. The trapezoidal rail can be connected to an external car and move synchronously with the external car. The fixed frame is connected or fixed to the external tower through an external fastener. When the pulley is placed on the trapezoidal rail, the steel wire rope acts on the protective ring to open the protective ring. When the pulley leaves the trapezoidal rail, the protective ring is closed.

[0004] The technical solution also includes: a small spring and a limit device are arranged on the supporting plate, a small spring is arranged between the two cranks, and one end of the steel wire rope passes through the small spring and is fixed on one crank.

[0005] This technical solution also includes: a sleeve device is arranged between the spring front seat and the spring middle seat, a large spring is arranged on the sleeve device, and a through hole is arranged on the spring front seat.

[0006] The technical solution also includes: the movable frame is connected to the large spring device, including direct connection and indirect connection, either of which can be selected.

[0007] This technical solution also includes: the side surface of the trapezoidal rail is an isosceles trapezoid.

[0008] This technical solution also includes: when the external elevator car moves, the trapezoidal rail moves synchronously, the inclined surface of the trapezoidal rail hits the pulley, and the pulley moves on the trapezoidal rail.

[0009] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0010] 1. It can avoid cable swinging and hanging collision, which may cause cable damage, leakage and other safety hazards, and improve the safety production measures and guarantees of construction elevators.

[0011] 2. A spring device is provided to prevent the protective cable from swinging violently when there is a power outage or the steel wire rope breaks;

[0012] 3. Conducive to construction;

[0013] 4. It has a wide range of uses and can be used for the installation of various construction hoists and tower cranes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front schematic diagram of the structure of a linkage type cable protection device for a construction elevator according to the present invention.

[0015] Figure 2 The diagram is a top view of the structure of a linkage type cable protection device for a construction elevator according to the present invention.

[0016] Figure 3 It is an enlarged schematic diagram of the structure of a protective ring opening and closing device and a protective ring of a construction elevator linkage cable protection device of the present invention.

[0017] Figure 4 It is an enlarged schematic diagram of the structure of a trapezoidal rail of a linkage type cable protection device for a construction elevator according to the present invention.

[0018] Figure 5 The present invention is a schematic enlarged side view of the structure of a trapezoidal rail of a linkage type cable protection device for a construction elevator.

[0019] In the figure, 1. protective ring opening and closing device, 2. protective ring, 3. crossbeam, 4. steel wire rope, 5. large spring device, 6. fixed frame, 7. pulley, 8. external cable bracket, 9. external cable, 10. external car, 11. trapezoidal rail, 12. movable frame, 13. sleeve device, 14. large spring, 15. spring middle seat, 16. spring front seat, 17. support plate, 18. limit device, 19. crank, 20. small spring, 21. connector, 22. trapezoidal rail top, 23. trapezoidal rail inclined surface, 24. support plate, 25. connecting base, 26. shaft, 27. guide rail pulley. DETAILED DESCRIPTION

[0020] See Example Figure 1 A protective ring opening and closing device 1 is set on the crossbeam 3, which connects the protective ring 2, the steel wire rope 4, the large spring device 5, and the pulley 7. The crossbeam 3 is connected to the fixing frame 6. The steel wire rope 4 is fixed to the crossbeam 3 with a clip. The steel wire rope is composed of a steel wire and a sheath. An external cable bracket 8 is set on one side of the external car 10. The external cable 9 is arranged on the external cable bracket 8. The external car 10 is directly or indirectly connected to the ladder rail 11. The ladder rail 11 and the external car 10 are connected by setting a connecting plate and bolts. The two can move synchronously. When the external car 10 rises or falls and touches the pulley 7, the pulley 7 can move on the ladder rail 11. When the pulley 7 is placed on the ladder rail of the ladder rail 11, the steel wire rope acts on the protective ring opening and closing device 1 to open the protective ring 2. When the pulley 7 leaves the ladder rail 11, the protective ring 2 is closed.

[0021] See Example Figure 2The large spring device 5 includes: a sleeve device 13, a large spring 14, a spring middle seat 15, and a spring front seat 16; a pulley 7 is provided on the movable frame 12; the crossbeam 3 is in an "L" shape or a "U" shape, and a protective ring opening and closing device 1 is welded or bolted to the crossbeam 3, and the protective ring opening and closing device 1 is connected to the protective ring 2. The steel wire rope 4 is fixed to the crossbeam 3 with a clip, and the crossbeam 3 is connected to the fixed frame 6 by welding or bolts. The pulley 7 is provided on the movable frame 12, and the movable frame 12 passes through the spring middle seat 15 and is connected to one end of the sleeve device 13. The sleeve device 13 is provided The other end of the large spring 14 and the sleeve device 13 is connected to the wire rope 4. The spring middle seat 15 and the spring front seat 16 are horizontally welded or bolted to the fixed frame 6. A through hole is provided on the spring front seat 15 for one end of the sleeve device 13 to pass through. The movable frame 12 is connected to the large spring device, including direct connection and indirect connection. One of the two forms can be selected from them. When directly connected: the movable frame 12 is a square tube, the sleeve device 13 is a round tube, the square tube of the movable frame 12 is sleeved on the sleeve device 13 and bolted or welded. The end face of the square tube is against the end face of the large spring 14, and the spring A through hole for the movable frame 12 is provided on the middle seat 15, and a mounting roller is provided at the opening to facilitate the smooth movement of the movable frame 12. In the case of indirect connection, an axis and an axis ear are provided at the connection between the movable frame 12 and the sleeve device 13. A pulley 7 is provided on the other end of the movable frame 12, and a notch and an axis for mounting the pulley are provided at one end of the movable frame 12. One end of the steel wire rope 4 is connected to the protective ring opening and closing device 1, and the other end is connected to the sleeve device 13. When the inclined surface of the trapezoidal rail 11 hits the pulley 7, the pulley moves on the trapezoidal rail 11, and the pulley 7 presses against the movable frame 12 to compress the large spring. 14. Make one end of the sleeve device 13 protrude from the through hole provided on the spring front seat 16, push the wire rope 4, and the wire rope 4 pushes the protective ring opening and closing device 1 to open the protective ring 2. When the pulley 7 leaves the set trapezoidal rail 11, the large spring 14 returns to its original shape under the action of tension. One end of the large spring 14 is resisted by the spring front seat 16, and the other end stretches against the square tube end face of the movable frame 12, and moves toward the pulley 7 on the through hole provided on the spring middle seat 15, stretching the wire rope 4. The wire rope 4 pulls the protective ring opening and closing device 1 to automatically close the protective ring.

[0022] See Example Figure 3, the protective ring opening and closing device 1 includes: a support plate 17, a limit device 18, two cranks 19, a small spring 20 is set between the two cranks 19, a connecting piece 21 is set in the middle of the small spring, and a protective ring 2; the protective ring 2 includes two semicircular rings, or frame devices with symmetrical geometric shapes, or symmetrical half-cylindrical devices, the protective ring 2 is two separable parts, each part can be connected to a crank 19 respectively, the two cranks 19 and the connected protective ring 2 can overlap, a connecting hole is set on the crank 19, one end of the wire rope 4 passes through the connecting hole and the small spring 20 set on the crank 19, and is fixed in a On the connecting hole set in the crank 19, the connecting piece 21 movably connects the support plate 17 and the crank 19; the connecting piece 21 includes a bolt, or a screw and a nut. The connecting piece 21 is the fulcrum of the crank 19 and also the connection point. It pushes the wire rope 4 and squeezes the small spring 20 to make the crank 19 open outward, driving the protective ring 2 to open, and loosening the wire rope 4. The small spring 20 naturally stretches out, and the small spring 20 pushes the two cranks 19 apart. The crank 19 drives the protective ring 2 to close. The limiting device 18 plays the role of limiting the range of movement of the crank 20. The limiting device 21 is usually a cylindrical metal welded to the support plate 17. The crank 19 and the protective ring 2 are connected as a whole.

[0023] See also Figure 4 、 Figure 5 The side of the trapezoidal rail 11 is an isosceles trapezoid. The trapezoidal rail 11 includes: a trapezoidal rail top 22 connecting the trapezoidal rail inclined surfaces 23 on both sides, the back of the trapezoidal rail top 22, a connecting base 24 or a connecting support plate 25, and a shaft 26 is provided on the connecting base 24 or the support plate 25 for connecting the guide rail pulley 27. The width of the trapezoidal rail top 22 is not less than the width of the pulley 7 described in this solution, and the guide rail pulley 27 can be combined with the track on the external tower; when the external car described in this solution moves, the trapezoidal rail 11 moves synchronously, and when the trapezoidal rail inclined surface 23 hits the pulley 7 described in this solution, the pulley 7 moves on the trapezoidal rail 11.

[0024] See also Figure 1 、 2, 3, 4, 5, the protective ring opening and closing device 1, the protective ring 2, the crossbeam 3, the steel wire rope 4, the large spring device 5, the fixed frame 6, the pulley 7, and the movable frame 12 can be connected and can realize linkage, and are connected or fixed to the external tower through the fixed frame 6; because the external cable 9 is erected on the outside of the external car 10 through the external cable bracket 8, the trapezoidal rail 11 can be directly or indirectly connected to the external car 10, and a pulley is set at one end of the movable frame, and the other end is connected to the sleeve device. When the external car 10 moves up or down along the external guide rail, the trapezoidal rail 11 moves synchronously, the trapezoidal rail inclined surface 23 squeezes the pulley 7, and the pulley 7 is placed on the trapezoidal rail 11, and the steel wire rope is connected to the external car 10. The pull rope 4 acts on the protective ring 2, and the protective ring 2 is opened to prepare to receive the external cable 9. When the pulley 7 passes through the trapezoidal rail 11, the pulley 7 loses the extrusion of the trapezoidal rail 11, and the steel wire pull rope 4 acts on the protective ring 2. The protective ring 2 is closed, so that the external cable 9 can be placed in the protective ring 2, thereby preventing the external cable 9 from being shaky due to the rise or fall of the external car 10, or being entangled or leaking due to obstacles; the components involved in this scheme are made of metal materials, and the crossbeam 3 can be welded or bolted to the bottom of the support plate 17, or the crossbeam 3 can be welded or bolted to the crank 19, or the bottom of the protective ring 2.

[0025] Through the above description, the present invention discloses a linkage type cable protection device for a construction elevator, which can realize linkage, avoid cable damage or leakage caused by cable swinging and hanging collision, improve the safety production measures and protection of the construction elevator, and is provided with a spring device. When there is a power outage or the wire rope breaks, the protection ring 2 can be in a closed state, and it can also prevent the protective cable from swinging greatly, which is beneficial to construction and ensures safe production. It has a wide range of uses and can be used for the installation of various construction elevators and tower cranes.

Claims

1. A construction hoist linkage cable protection device, characterized by: The cam is connected to the upper frame by a spring, and the cam is connected to the lower frame by a spring. A small spring is arranged between the two wheels, one end of the steel wire rope passes through the small spring and is fixed on a crank; a sleeve device is arranged between the spring front seat and the spring middle seat, a large spring is arranged on the sleeve device, and a through hole is arranged on the spring front seat; a cable bracket is arranged on one side of the external car, and an external cable is arranged on the cable bracket; when the inclined surface of the trapezoidal rail hits the pulley, the pulley moves on the trapezoidal rail, the pulley presses against the movable frame and compresses the large spring, so that one end of the sleeve device protrudes out of the through hole arranged on the spring front seat to push the steel wire rope, and the steel wire rope pushes the protective ring opening and closing device to open the protective ring to prepare to receive the external cable. When the pulley leaves the trapezoidal rail, the large spring returns to its original shape under the action of tension, one end of the large spring is subjected to the resistance of the spring front seat, and the other end presses against the end face of the movable frame to stretch, and moves toward the pulley on the through hole arranged on the spring middle seat, pulling the steel wire rope, and the steel wire rope pulls the protective ring opening and closing device to close the protective ring, and the external cable is placed in the protective ring.

2. The construction hoist linkage cable protection device according to claim 1, characterized in that: The movable frame is connected to the large spring device in two forms: direct connection and indirect connection.

3. The construction hoist linkage cable protection device according to claim 1, characterized in that: The side surface of the trapezoidal rail is in the shape of an isosceles trapezoid.

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