A machine room-less elevator installation device

Abstract

The present invention discloses a machine room-less elevator installation device, comprising a supporting frame, a power lifting device and a safety protection device. The elevator car moves up and down on the guide rail of a hoistway, a safety wire rope is arranged in the hoistway, a guide wheel is arranged on the top of the hoistway, the power lifting device comprises a hoist and a power wire rope, an L-shaped base is arranged at the bottom of the hoist, the L-shaped base is hinged on a mounting seat to form a first hinge point, the head end of the power wire rope is fixed on another mounting seat, the tail end enters the hoist after passing around the guide wheel, the hoist climbs on the power wire rope, the safety protection device comprises a centrifugal safety lock fixed on the supporting frame, when the speed of the centrifugal safety lock relative to the safety wire rope descending reaches a set speed, the locking block in the centrifugal safety lock is actuated to hold the safety wire rope tightly, the centrifugal safety lock is linked with the safety clamp on the elevator car, and when the locking block is actuated, the safety clamp is actuated to clamp the guide rail.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a machine room-less elevator installation device. Background Art

[0002] When working at high altitude in construction projects, the traditional method is to build scaffolding in the shaft to install the elevator. This method of operation is labor-intensive, inefficient, slow in construction progress, and unsafe. Therefore, most people use hanging basket elevators, which are flexible to operate, easy to move, and convenient to use. However, the general hanging basket needs to be designed and built according to the specifications of the shaft, and has poor versatility. As a lifting unit, safety should be the primary consideration. The existing hanging basket still needs to be further optimized in terms of its operating safety and smooth movement. Summary of the invention

[0003] Based on the above, the present invention provides a machine room-less elevator installation device, which is applicable to hoistways of various specifications, ensures structural stability, and improves its versatility and safety.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A machine room-less elevator installation device acts on the top of the elevator car, which includes a support frame, a power lifting device and a safety protection device. The elevator car moves up and down on the guide rail of the hoistway. A safety wire rope is arranged in the hoistway, and a guide wheel is arranged on the top of the hoistway. The support frame includes four columns, wherein two columns in a vertical row are fixedly connected by a connecting column, and the bottoms of two columns in the same row are both provided with mounting seats, and the two mounting seats are fixedly connected to the beam on the top of the elevator car, and the two columns in a horizontal row are connected by a cross beam, and the lengths of the columns and the cross beam can be telescopically adjusted; the power lifting device includes a hoist and a power wire rope, and the bottom of the hoist An L-shaped base is provided, which is hinged on a mounting seat to form a first hinge point, the head end of the power wire rope is fixed on another mounting seat, and the tail end passes around the guide wheel and enters the hoist, and the hoist climbs on the power wire rope; the safety protection device includes a centrifugal safety lock, which is fixed on the supporting frame, and the safety wire rope is passed through the centrifugal safety lock. When the speed of the centrifugal safety lock relative to the safety wire rope reaches a set speed, the locking block in the centrifugal safety lock is actuated to hold the safety wire rope tightly, and the centrifugal safety lock is linked to the safety clamp on the elevator car. When the locking block is actuated, the safety clamp is actuated to clamp the guide rail.

[0006] In particular, a compensation device for transmission angle compensation is arranged between the L-shaped base and the mounting seat, and the compensation device includes a guide rod, a buffer spring and a sliding sleeve. The sliding sleeve is hinged on the L-shaped base to form a second hinge point, and one end of the guide rod is hinged on the mounting seat to form a third hinge point. The first hinge point, the second hinge point and the third hinge point form a triangle. The guide rod is inserted into the sliding sleeve, and the buffer spring is sleeved on the guide rod and clamped between the second hinge point and the third hinge point.

[0007] In particular, the head end of the power wire rope is connected to the hinged rod on the mounting seat.

[0008] In particular, a rope guide device for guiding the safety wire rope is arranged on the mounting seat.

[0009] In particular, the centrifugal safety lock is linked with the safety clamp through a steel wire trigger.

[0010] In particular, the column includes a first column, a second column and a sleeve. The first column and the second column are connectedly inserted into the sleeve. The first column, the second column and the sleeve are correspondingly provided with locking holes and are locked by fixing bolts.

[0011] In particular, the crossbeam includes a first beam and a second beam, the first beam is inserted into the second beam, and locking holes are correspondingly opened on both beams and locked by fixing bolts.

[0012] In particular, a top beam is arranged on the top of the column, two top beams are connected by sleeves, a ceiling is arranged on the top beam, and the length of the ceiling can be telescopically adjusted.

[0013] In particular, a fixing tube is arranged on the column, and a guardrail is arranged between the fixing tubes of two columns in a horizontal row, and the length of the guardrail can be telescopically adjusted.

[0014] In particular, a pressing bolt for locking the guardrail is arranged on the fixing cylinder.

[0015] In summary, the beneficial effects of the present invention are that, compared with the prior art, the machine room-less elevator installation device has the following advantages:

[0016] 1) It is convenient to install and fix with the car, replacing the traditional scaffolding in the hoistway;

[0017] 2) Using the car structure setting, the structure is light, easy to install and low cost;

[0018] 3) The four sides can be telescopically adjusted, suitable for various hoistway specifications and a wide range;

[0019] 4) The compensation device can be adjusted according to various angles and is equipped with a rope guide device, which makes the rope guide smoother;

[0020] 5) Setting of safety protection device: when the descending speed reaches the set speed, the safety protection device will be activated and the safety clamp will be triggered at the same time, which plays a double-layer protection role with high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a machine room-less elevator installation device provided in Embodiment 1 of the present invention;

[0022] Figure 2 is a side view of a machine room-less elevator installation device provided in Embodiment 1 of the present invention;

[0023] Figure 3 yes Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0025] See also Figures 1 to 3 As shown, this embodiment provides a machine room-less elevator installation device, which acts on the top of the elevator car, and includes a support frame 1, a power lifting device 2, a safety protection device 3 and a compensation device 4. The elevator car moves up and down on the guide rail of the hoistway, a safety wire rope 8 is arranged in the hoistway, and a guide wheel 5 is arranged on the top of the hoistway.

[0026] The support frame 1 includes four columns 11, wherein two columns 11 in a vertical row are fixedly connected by a connecting column 13, and mounting seats 14 are provided at the bottoms of two columns 11 in the same row, and the two mounting seats 14 are fixedly connected to the beam on the top of the elevator car, and two columns 11 in a horizontal row are connected by a cross beam 12, and the lengths of the columns 11 and the cross beam 12 can be telescopically adjusted.

[0027] The power lifting device 2 includes a hoist 21 and a power wire rope 22. An L-shaped base 23 is provided at the bottom of the hoist 21. The L-shaped base 23 is hinged on a mounting seat 14 to form a first hinge point A. The head end of the power wire rope 22 is fixed on another mounting seat 14, and the tail end passes around the guide wheel 5 and enters the hoist 21. The hoist 21 climbs on the power wire rope 22.

[0028] The safety protection device 3 includes a centrifugal safety lock, which is fixed on the support frame 1, specifically, on a certain column 11. The safety wire rope 8 is passed through the centrifugal safety lock. When the speed at which the centrifugal safety lock descends relative to the safety wire rope 8 reaches a set speed, the locking block in the centrifugal safety lock acts to hold the safety wire rope 8 tightly.

[0029] The centrifugal safety lock adopts a conventional structure, including a lock block, a fly block, a tension spring, a wheel, a lever, a cam, etc. Its working principle is: one end of the two fly blocks is hinged on the wheel, and the other end is connected by a tension spring. The safety wire rope 8 is inserted between the two lock blocks. A certain gap is left between the two lock blocks, and they are in an open and stable state supported by the cam. When the car descends, the wheel is driven to rotate by the wire rope. When the descending speed exceeds the set value, the centrifugal force generated by the fly block overcomes the restraining force of the tension spring and is thrown outward, triggering the lever to drive the cam, and the two lock blocks are broken and closed. The formed wire rope is in a self-locking state. The rope locking force generated thereafter increases with the increase of load, so as to achieve the purpose of reliably locking the wire rope and preventing the car from further sliding down.

[0030] In addition, as double protection, the centrifugal safety lock is linked with the safety clamp 6 on the elevator car, specifically, the steel wire is triggered to move the safety clamp 6 after the centrifugal safety lock is actuated. When the lock block is actuated, the safety clamp 6 is actuated to clamp the guide rail.

[0031] The compensation device 4 is used for transmission angle compensation and is arranged between the L-shaped base 23 and the mounting seat 14. It includes a guide rod 41, a buffer spring 42 and a sliding sleeve 43. The sliding sleeve 43 is hinged on the L-shaped base 23 to form a second hinge point B. One end of the guide rod 41 is hinged on the mounting seat 14 to form a third hinge point C. The first hinge point A, the second hinge point B, and the third hinge point C form a triangle. The guide rod 41 is inserted into the sliding sleeve 43. The buffer spring 42 is sleeved on the guide rod 41 and clamped between the second hinge point B and the third hinge point C.

[0032] In addition, the head end of the power wire rope 22 is connected to the hinge rod 44 on the mounting seat 14.

[0033] A rope guiding device 7 for guiding the safety wire rope 8 is provided on the mounting seat 14 to ensure smooth rope guiding.

[0034] The column 11 includes a first column, a second column and a sleeve. The first column and the second column are connectedly inserted into the sleeve. The first column, the second column and the sleeve are correspondingly provided with locking holes and are locked by fixing bolts.

[0035] Similarly, the cross beam 12 includes a first beam and a second beam. The first beam is inserted into the second beam, and locking holes are correspondingly opened on both beams and locked by fixing bolts.

[0036] A top beam 15 is arranged on the top of the column 11, and two top beams 15 are connected by inserting sleeves. A ceiling 16 is arranged on the top beam 15, which also adopts a structure of locking holes and fixing bolts. The length of the ceiling 16 can also be telescopically adjusted.

[0037] A fixing tube 17 is provided on the column 11, and a guardrail 18 is passed between the fixing tubes 17 of two horizontal columns 11. A pressing bolt 19 for locking the guardrail 18 is provided on the fixing tube 17. The structure of a locking hole plus a fixing bolt is also adopted, and the length of the guardrail 18 can also be telescopically adjusted.

[0038] In this way, it is sufficient to adapt to various sizes of wells and has sufficient protection.

[0039] In summary, the above-mentioned machine roomless elevator installation equipment utilizes the car structure design and is installed and fixed with the car to replace the traditional scaffolding in the shaft construction. It is retractable and adjustable on all four sides and is suitable for various shaft specifications with a wide range. The compensation device can be adjusted automatically according to various angles and is equipped with a rope guide device, which makes the rope guide smoother. When the descent speed reaches the set speed, the safety protection device is activated and the safety clamp is triggered at the same time, which plays a double-layer protection role with high safety.

[0040] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A machine room-less elevator installation device, acting on the top of the elevator car, characterized in that: It includes a support frame, a power lifting device and a safety protection device. The elevator car moves up and down on the guide rails of the hoistway. A safety wire rope is installed in the hoistway, and a guide wheel is installed at the top of the hoistway. The support frame includes four columns, wherein two columns in a vertical row are connected by a connecting column, and mounting seats are provided at the bottom of two columns in the same row, and the two mounting seats are connected to the beam on the top of the elevator car, and two columns in a horizontal row are connected by a crossbeam, and the lengths of the columns and the crossbeam can be telescopically adjusted; The power lifting device includes a hoist and a power steel wire rope. The bottom of the hoist is provided with an L-shaped base, the L-shaped base is hinged on a mounting seat to form a first hinge point, the head end of the power steel wire rope is fixed on another mounting seat, and the tail end passes around the guide wheel and enters the hoist, and the hoist climbs on the power steel wire rope; The safety protection device comprises a centrifugal safety lock, which is fixed on the support frame, and the safety wire rope is passed through the centrifugal safety lock. When the speed at which the centrifugal safety lock descends relative to the safety wire rope reaches a set speed, the locking block in the centrifugal safety lock acts to hold the safety wire rope tightly, and the centrifugal safety lock is linked to the safety clamp on the elevator car. When the locking block acts, the safety clamp acts to clamp the guide rail.

2. The machine room-less elevator installation device according to claim 1, characterized in that: A compensation device for transmission angle compensation is arranged between the L-shaped base and the mounting seat, and the compensation device includes a guide rod, a buffer spring and a sliding sleeve. The sliding sleeve is hinged on the L-shaped base to form a second hinge point, and one end of the guide rod is hinged on the mounting seat to form a third hinge point. The first hinge point, the second hinge point and the third hinge point form a triangle. The guide rod is inserted into the sliding sleeve, and the buffer spring is sleeved on the guide rod and clamped between the second hinge point and the third hinge point.

3. The machine room-less elevator installation device according to claim 1, characterized in that: The head end of the power steel wire rope is connected to the hinged rod on the mounting seat.

4. The machine room-less elevator installation device according to claim 1, characterized in that: The mounting seat is provided with a rope guiding device for guiding the safety steel wire rope.

5. The machine room-less elevator installation device according to claim 1, characterized in that: The centrifugal safety lock and the safety clamp are linked by a steel wire trigger.

6. The machine room-less elevator installation device according to claim 1, characterized in that: The column comprises a first column, a second column and a sleeve. The first column and the second column are connectedly inserted into the sleeve. The first column, the second column and the sleeve are correspondingly provided with locking holes and are locked by fixing bolts.

7. The machine room-less elevator installation device according to claim 1, characterized in that: The crossbeam comprises a first beam and a second beam, the first beam is inserted into the second beam, and locking holes are correspondingly opened on both beams and locked by fixing bolts.

8. The machine room-less elevator installation device according to claim 1, characterized in that: A top beam is arranged on the top of the column, two top beams are connected by sleeves, a ceiling is arranged on the top beam, and the length of the ceiling can be telescopically adjusted.

9. The machine room-less elevator installation device according to claim 1, characterized in that: A fixing tube is arranged on the column, and a guardrail is arranged between the fixing tubes of two columns in a horizontal row, and the length of the guardrail can be telescopically adjusted.

10. The machine room-less elevator installation device according to claim 9, characterized in that: The fixing cylinder is provided with a pressing bolt for locking the guardrail.

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