Single-rail and double-rail elevator safety tongs lifting device

Abstract

The utility model provides a single-rail and double-rail elevator safety gear lifting device which is characterized in that a mounting cavity is formed in a mounting mechanism, a transmission mechanism is arranged in the mounting cavity, the power input end of the transmission mechanism is connected with a steel cable, one end of a swing arm is connected with a lifting rod of a safety gear, the other end of the swing arm is connected with the transmission mechanism, and a reset mechanism is arranged in the mounting cavity. The reset mechanism is connected with the power output end of the transmission mechanism, and under the action of external force, when the swing arm swings, the reset mechanism stores energy, and when the external force stops acting, the reset mechanism releases energy, and the power output end of the transmission mechanism resets. According to the safety tongs, the installation mechanism, the transmission mechanism and the swing arm are matched, the lifting rod of the safety tongs can be lifted when an elevator falls, the structure is simple, installation is convenient, the power output end of the transmission mechanism can reset automatically through the reset mechanism when external force is removed, and compared with manual reset, the safety tongs can be reset automatically. The use convenience of the safety tongs lifting device for the monorail elevator is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator security equipment, and more specifically, relates to a safety clamp lifting device for a monorail elevator. In addition, the utility model also relates to a safety clamp lifting device for a double-track elevator. Background Art

[0002] With the increasing number of floors in commercial office buildings and residential buildings, elevators have become essential facilities. To ensure safe operation, elevators are generally equipped with safety clamps, lifting devices, and speed limiters. The safety clamp's lifting rod is connected to a steel cable across the speed limiter through the lifting device. In the event of an elevator fall, the speed limiter clamps the steel cable, which, through the lifting device, pulls the safety clamp's lifting rod, causing the safety clamp to clamp onto the elevator's guide rails to prevent further fall.

[0003] The existing safety clamp lifting device has a complex structure, is time-consuming and labor-intensive to install, and increases the workload of the staff; on the other hand, after the lifting device completes the lifting action, it needs to be manually reset, which makes it inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a single-track and double-track elevator safety clamp pulling device to reduce the difficulty of installing the pulling device and improve the convenience of using the pulling device.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a monorail elevator safety clamp lifting device, including a mounting mechanism, a transmission mechanism, a swing arm and a reset mechanism, wherein the mounting mechanism is arranged on the elevator, and a mounting cavity is provided on the mounting mechanism; the transmission mechanism is arranged in the mounting cavity, and the power input end of the transmission mechanism is connected to the steel cable crossing the speed limiter of the elevator; one end of the swing arm is connected to the lifting rod of the safety clamp, and the other end of the swing arm is connected to the power output end of the transmission mechanism, and the swing arm can swing with the power output end of the transmission mechanism as the axis under the drive of the power output end of the transmission mechanism to lift the lifting rod of the safety clamp; the reset mechanism is arranged in the mounting cavity, and the reset mechanism is connected to the power output end of the transmission mechanism, and under the action of external force, when the swing arm swings, the reset mechanism stores energy; when the external force stops acting, the reset mechanism releases energy, and the power output end of the transmission mechanism is reset.

[0006] In one possible implementation, the mounting mechanism includes two mounting plates, each of which is L-shaped and has multiple mounting holes. Bolts pass through the mounting holes and are screwed to the elevator. The mounting plates are arranged at intervals, and the interval between the two mounting plates is the mounting cavity.

[0007] In one possible implementation, the transmission mechanism includes a transmission shaft and a drip plate, the transmission shaft is the power output end, the drip plate is the power input end, the mounting plate is provided with through holes, the transmission shaft is passed through two of the through holes, and the transmission shaft can rotate around its own axis, both ends of the transmission shaft extend to the outside of the mounting plate, the drip plate is fixed to one end of the transmission shaft, and one end of the drip plate is connected to the steel cable crossing the speed limiter.

[0008] In one possible implementation, a first limit block and a second limit block are provided on the mounting plate, and the first limit block and the second limit block are respectively provided on the upper and lower sides of the drip plate. In a natural state, the drip plate abuts against the second limit block, and the first limit block is provided on the flipping path of the drip plate.

[0009] In a possible implementation, the reset mechanism includes a torsion spring, one end of which is connected to the mounting plate, and the other end of which is connected to the transmission shaft. When the drip plate abuts against the second limit block, the torsion spring is in a natural state.

[0010] In one possible implementation, an insertion rod is provided at one end of the torsion spring, a fixing hook is provided at the other end of the torsion spring, a plurality of insertion holes are provided on the mounting plate, the insertion rod is inserted into the insertion holes, a reset hole is provided on the transmission shaft, a reset screw is provided in the reset hole, and the fixing hook is hung on the reset screw.

[0011] In one possible implementation, a safety piece is provided on the mounting plate, and the safety piece is connected to the driving mechanism of the elevator. A pressing rod is provided on the top of the safety piece, and a driving disk is provided at the end of the transmission shaft. A fan-shaped groove is provided on the driving disk, and the top end of the pressing rod is provided in the fan-shaped groove. When the transmission shaft rotates, the pressing rod can slide in the safety piece under the pressure of the side wall of the fan-shaped groove, the safety piece is closed, and the driving mechanism is powered off.

[0012] In one possible implementation, the swing arm includes two sub-arms, two connecting rods and a connecting tube, the sub-arms are respectively arranged at both ends of the connecting tube, the transmission shaft is provided with a first fixing hole, the connecting tube is provided with a second fixing hole, the transmission shaft is inserted in the connecting tube, and the first pin is inserted in the first fixing hole and the second fixing hole to fix the connecting tube and the transmission shaft relatively; the connecting rod corresponds to the sub-arm one by one, the connecting rod is provided at the end of the sub-arm, and the connecting rod is provided with a third fixing hole. The safety clamp has two lifting rods, and the top of the lifting rod is provided with a fourth fixing hole. The connecting rod is inserted in the fourth fixing hole, the sub-arm is provided on one side of the lifting rod, and the third fixing hole is provided on the other side of the lifting rod. The second pin is inserted in the third fixing hole to fix the sub-arm to the top of the lifting rod.

[0013] In a possible implementation, an adjustment gasket is provided between the second pin shaft and the lifting rod.

[0014] The beneficial effect of the monorail elevator safety clamp lifting device provided by the utility model is that: compared with the existing technology, the utility model can realize the lifting of the safety clamp lifting rod when the elevator falls by arranging the installation mechanism, the transmission mechanism and the swing arm. The structure is simple and the installation is convenient. In addition, by arranging the reset mechanism, the power output end of the transmission mechanism can be automatically reset when the external force is removed. Compared with manual reset, the convenience of using the monorail elevator safety clamp lifting device of the utility model is greatly improved.

[0015] The present utility model also designs a double-rail elevator safety clamp lifting device, comprising two monorail elevator safety clamp lifting devices as described above arranged side by side, wherein the transmission shaft of one of the monorail elevator safety clamp lifting devices is not provided with a drip plate, a first limit block and a second limit block; the transmission shaft of the other monorail elevator safety clamp lifting device is not provided with a drive disk and a safety member; the two transmission shafts are connected by a connecting shaft.

[0016] The beneficial effect of the double-track elevator safety clamp lifting device provided by the utility model is that: by providing a connecting shaft, the synchronous rotation of the transmission mechanisms of the two side-by-side single-track elevator safety clamp lifting devices can be achieved, thereby achieving the lifting of the lifting rods of the two safety clamps at the same time. The structure is simple and easy to use. At the same time, by inheriting the reset mechanism of the above-mentioned single-track elevator safety clamp lifting device, the convenience of use of the double-track elevator safety clamp lifting device of the utility model is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 A schematic structural diagram of a monorail elevator safety clamp lifting device provided in Example 1 of the present utility model from one angle;

[0019] Figure 2 This is a structural schematic diagram of the monorail elevator safety clamp lifting device provided in Example 1 of the utility model from another angle;

[0020] Figure 3 for Figure 2 A magnified view of part A;

[0021] Figure 4 This is a structural schematic diagram of a double-track elevator safety clamp lifting device provided in Example 2 of the present utility model.

[0022] Among them, the reference numerals in the figures are as follows:

[0023] 1. Mounting mechanism; 2. Transmission mechanism; 3. Swing arm; 4. Reset mechanism; 5. Safety element; 6. Safety clamp; 7. Connecting shaft;

[0024] 101, mounting cavity; 102, mounting plate; 103, mounting hole; 104, first stopper; 105, second stopper; 106, drive disk; 107, fan-shaped slot;

[0025] 201, transmission shaft; 202, water drop plate;

[0026] 301, sub-arm; 302, connecting rod; 303, connecting cylinder; 304, first pin; 305, fourth pin; 306, adjusting gasket;

[0027] 401, plug rod; 402, reset bolt;

[0028] 501, press rod;

[0029] 601. Pull rod. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] It should be further explained that the drawings and implementation methods of the present invention mainly describe the concept of the present invention. On the basis of this concept, some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems, etc. The specific forms and settings may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a familiar manner.

[0032] When an element is referred to as being “fixed to” or “disposed on” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] The directions or positional relationships indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, and "several" means one or more, unless otherwise specifically defined.

[0035] The false frame fixing tool for transferring the installation net provided by the present invention will now be described.

[0036] Example 1

[0037] Please also refer to Figure 1 and Figure 2The monorail elevator safety clamp lifting device includes a mounting mechanism 1, a transmission mechanism 2, a swing arm 3, and a reset mechanism 4. The mounting mechanism 1 is mounted on the elevator and has a mounting cavity 101. The transmission mechanism 2 is mounted within the mounting cavity 101, with the power input end of the transmission mechanism 2 connected to a steel cable spanning the elevator's speed governor. One end of the swing arm 3 is connected to the lifting rod 601 of the safety clamp 6, and the other end of the swing arm 3 is connected to the power output end of the transmission mechanism 2. Driven by the power output end of the transmission mechanism 2, the swing arm 3 can swing about the power output end of the transmission mechanism 2 as an axis to lift the lifting rod 601 of the safety clamp 6. The reset mechanism 4 is mounted within the mounting cavity 101 and connected to the power output end of the transmission mechanism 2. When the swing arm 3 swings under the action of an external force, the reset mechanism 4 accumulates energy. When the external force ceases, the reset mechanism 4 releases energy, and the power output end of the transmission mechanism 2 is reset.

[0038] The beneficial effects of the monorail elevator safety clamp lifting device provided in this embodiment are as follows: compared with the prior art, the monorail elevator safety clamp lifting device provided in this embodiment cooperates with the installation mechanism 1, the transmission mechanism 2 and the swing arm 3, so that the lifting rod 601 of the safety clamp 6 can be lifted when the elevator falls. The structure is simple and the installation is convenient. In addition, by providing the reset mechanism 4, the power output end of the transmission mechanism 2 can be automatically reset when the external force is removed. Compared with manual reset, the convenience of using the monorail elevator safety clamp lifting device of the utility model is greatly improved.

[0039] Specifically, in this embodiment, the mounting mechanism 1 includes two L-shaped mounting plates 102 with multiple mounting holes 103 formed therein. Bolts pass through the mounting holes 103 and are screwed to the elevator. The mounting plates 102 are spaced apart, and the space between the two mounting plates 102 forms a mounting cavity 101. The mounting plates 102 have a simple structure, are easily fixed to the elevator, and provide installation space for the transmission mechanism 2.

[0040] like Figure 2 As shown, the transmission mechanism 2 includes a transmission shaft 201 and a water drop plate 202. The transmission shaft 201 is the power output end, and the water drop plate 202 is the power input end. The mounting plate 102 is provided with through holes, and the transmission shaft 201 is inserted into the two through holes. The transmission shaft 201 can rotate around its own axis. The two ends of the transmission shaft 201 extend to the outside of the mounting plate 102. The water drop plate 202 is fixed to one end of the transmission shaft 201, and one end of the water drop plate 202 is connected to a steel cable that spans the speed limiter. Specifically, a connecting hole is provided at one end of the water drop plate 202, and the steel cable is fixed in the connecting hole. In actual use, when the power drops, the speed limiter clamps the steel cable, and the steel cable pulls the water drop plate 202 to flip around the axis of the transmission shaft 201, thereby driving the transmission shaft 201 to rotate.

[0041] As a preferred technical solution, the mounting plate 102 is provided with a first stopper 104 and a second stopper 105, which are respectively located on the upper and lower sides of the drip plate 202. In the natural state, the drip plate 202 abuts against the second stopper 105, and the first stopper is located on the rotation path of the drip plate 202. The provision of the first stopper 104 prevents damage to the safety clamp 6, thereby increasing the service life of the accompanying safety clamp 6.

[0042] like Figure 2 As shown, the reset mechanism 4 includes a torsion spring, one end of which is connected to the mounting plate 102 and the other end of which is connected to the transmission shaft 201. When the drip plate 202 abuts the second stopper 105, the torsion spring is in a natural state. The use of a torsion spring as the reset mechanism 4 is simple in structure, easy to use, and readily available, facilitating the processing and production of the monorail elevator safety gear lifting device of the present invention.

[0043] like Figure 2 and Figure 3 As shown, a torsion spring is provided with an insertion rod 401 at one end and a fixing hook at the other end. The mounting plate 102 is provided with multiple sockets, into which the insertion rods 401 are inserted. The drive shaft 201 is provided with a reset hole, within which a reset screw is installed, and the fixing hook is mounted on the reset screw. The combination of the insertion hole and the insertion rod 401, as well as the combination of the reset screw 402 and the fixing hook, facilitates the securement of the torsion spring, allowing the torsion spring to store energy when the drive shaft rotates relative to the mounting plate 102. Simultaneously, when the torsion spring releases energy, it drives the drive shaft 201 to rotate relative to the mounting plate 102, thereby achieving automatic reset of the drive shaft.

[0044] like Figure 1 As shown, a safety member 5 is provided on one mounting plate 102, and the safety member 5 is connected to the driving mechanism of the elevator. A pressing rod 501 is provided on the top of the safety member 5, and a driving disk 106 is provided at the end of the transmission shaft. A fan-shaped groove 107 is provided on the driving disk 106, and the top of the pressing rod 501 is arranged in the fan-shaped groove 107. When the transmission shaft 201 rotates, the pressing rod 501 can slide in the safety member 5 under the pressure of the side wall of the fan-shaped groove 107, the safety member 5 is closed, and the driving mechanism is powered off, thereby protecting the elevator and preventing the elevator from falling.

[0045] In this embodiment, the swing arm 3 includes two sub-arms 301, two connecting rods 302 and a connecting tube 303. The sub-arms 301 are respectively arranged at both ends of the connecting tube 303. A first fixing hole is provided on the transmission shaft 201, and a second fixing hole is provided on the connecting tube 303. The transmission shaft 201 is inserted into the connecting tube 303, and the first pin shaft 304 is inserted into the first fixing hole and the second fixing hole, so that the connecting tube 303 and the transmission shaft 201 are relatively fixed. The connecting rod 302 corresponds to the sub-arm 301 in a one-to-one manner and is located at the end of the sub-arm 301. The connecting rod 302 is provided with a third fixing hole. The safety gear 6 has two lifting rods 601, and the top of the lifting rod 601 is provided with a fourth fixing hole. The connecting rod 302 is inserted into the fourth fixing hole. The sub-arm 301 is located on one side of the lifting rod 601, and the third fixing hole is located on the other side of the lifting rod 601. The second pin 305 is inserted into the third fixing hole to fix the sub-arm 301 to the top of the lifting rod 601. When the rotating shaft rotates, it drives the connecting cylinder 303 to rotate, which in turn drives the two sub-arms 301 to flip, thereby lifting the lifting rod 601.

[0046] Finally, an adjusting washer 306 is provided between the second pin shaft 305 and the lifting rod 601 . The setting of the adjusting washer 306 can adjust the distance between the second pin shaft 305 and the lifting rod 601 to prevent the lifting rod 601 from interfering with the rotation of the second pin shaft 305 .

[0047] Example 2

[0048] like Figure 4 As shown, this embodiment relates to a dual-rail elevator safety clamp lifting device, comprising two side-by-side monorail elevator safety clamp lifting devices as described in Example 1. Specifically, the right end of the drive shaft 201 of the left monorail elevator safety clamp lifting device lacks a drip plate 202, and the first and second stop blocks 104, 105 are not provided on the mounting plate 102. The drive shaft 201 of the right monorail elevator safety clamp lifting device lacks a drive disc 106, and the safety member 5 is not provided on the mounting plate 102. The two drive shafts 201 are connected by a connecting shaft 7.

[0049] The beneficial effect of the double-track elevator safety clamp 6 lifting device provided by the utility model is that by providing a connecting shaft 7, the synchronous rotation of the transmission mechanism 2 of the two side-by-side monorail elevator safety clamp lifting devices can be achieved, thereby achieving the simultaneous lifting of the lifting rods 601 of the two safety clamps 6. The structure is simple and easy to use. At the same time, by inheriting the reset mechanism 4 of the above-mentioned monorail elevator safety clamp lifting device, the convenience of using the double-track elevator safety clamp 6 lifting device of the utility model is greatly improved.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A monorail elevator safety clamp lifting device, characterized in that: include: A mounting mechanism (1) is provided on the elevator, wherein the mounting mechanism (1) is provided with a mounting cavity (101); A transmission mechanism (2) is provided in the installation cavity (101), and a power input end of the transmission mechanism (2) is connected to a steel cable across a speed limiter of the elevator; A swing arm (3), one end of which is connected to the lifting rod (601) of the safety clamp (6), and the other end of which is connected to the power output end of the transmission mechanism (2). The swing arm (3) can swing around the power output end of the transmission mechanism (2) as an axis under the drive of the power output end of the transmission mechanism (2) to lift the lifting rod (601) of the safety clamp (6); A reset mechanism (4) is provided in the installation cavity (101), and the reset mechanism (4) is connected to the power output end of the transmission mechanism (2). When the swing arm (3) swings under the action of an external force, the reset mechanism (4) stores energy; when the external force stops acting, the reset mechanism (4) releases energy, and the power output end of the transmission mechanism (2) is reset.

2. The monorail elevator safety clamp lifting device according to claim 1, characterized in that: The mounting mechanism (1) comprises two mounting plates (102), the mounting plates (102) being L-shaped, a plurality of mounting holes (103) being provided on the mounting plates (102), bolts passing through the mounting holes (103) and being screwed to the elevator, the mounting plates (102) being arranged at intervals, and the interval between the two mounting plates (102) forming the mounting cavity (101).

3. The monorail elevator safety clamp lifting device according to claim 2, characterized in that: The transmission mechanism (2) comprises a transmission shaft (201) and a water drop plate (202), wherein the transmission shaft (201) is the power output end, and the water drop plate (202) is the power input end. The mounting plate (102) is provided with through holes, and the transmission shaft (201) is passed through two of the through holes. The transmission shaft (201) can rotate around its own axis. Both ends of the transmission shaft (201) extend outside the mounting plate (102). The water drop plate (202) is fixed to one end of the transmission shaft (201), and one end of the water drop plate (202) is connected to a steel cable spanning the speed limiter.

4. The monorail elevator safety clamp lifting device according to claim 3, characterized in that: The mounting plate (102) is provided with a first limiting block (104) and a second limiting block (105), the first limiting block (104) and the second limiting block (105) being respectively arranged on the upper and lower sides of the water drop plate (202); in a natural state, the water drop plate (202) abuts against the second limiting block (105), and the first limiting block is arranged on a turning path of the water drop plate (202).

5. The monorail elevator safety clamp lifting device according to claim 4, characterized in that: The reset mechanism (4) comprises a torsion spring, one end of which is connected to the mounting plate (102), and the other end of which is connected to the transmission shaft (201); when the water drop plate (202) abuts against the second limit block (105), the torsion spring is in a natural state.

6. The monorail elevator safety clamp lifting device according to claim 5, characterized in that: One end of the torsion spring is provided with an insertion rod (401), the other end of the torsion spring is provided with a fixing hook, the mounting plate (102) is provided with a plurality of insertion holes, the insertion rod (401) is inserted into the insertion holes, the transmission shaft (201) is provided with a reset hole, a reset screw is provided in the reset hole, and the fixing hook is hung on the reset screw.

7. The monorail elevator safety clamp lifting device according to claim 6, characterized in that: A safety member (5) is provided on the mounting plate (102), and the safety member (5) is connected to the driving mechanism of the elevator. A pressing rod (501) is provided on the top of the safety member (5), and a driving disk (106) is provided at the end of the transmission shaft. A fan-shaped groove (107) is provided on the driving disk (106). The top end of the pressing rod (501) is arranged in the fan-shaped groove (107). When the transmission shaft (201) rotates, the pressing rod (501) can slide in the safety member (5) under the pressure of the side wall of the fan-shaped groove (107), and the safety member (5) is closed, and the driving mechanism is powered off.

8. The monorail elevator safety clamp lifting device according to claim 7, characterized in that: The swing arm (3) comprises two sub-arms (301), two connecting rods (302) and a connecting cylinder (303); the sub-arms (301) are respectively arranged at both ends of the connecting cylinder (303); a first fixing hole is provided on the transmission shaft (201); a second fixing hole is provided on the connecting cylinder (303); the transmission shaft (201) is inserted into the connecting cylinder (303); a first pin (304) is inserted into the first fixing hole and the second fixing hole, so that the connecting cylinder (303) and the transmission shaft (201) are relatively fixed; The connecting rod (302) corresponds to the sub-arm (301) one by one, and the connecting rod (302) is provided at the end of the sub-arm (301). A third fixing hole is provided on the connecting rod (302). The safety clamp (6) has two lifting rods (601). A fourth fixing hole is provided at the top of the lifting rod (601). The connecting rod (302) is inserted into the fourth fixing hole. The sub-arm (301) is provided on one side of the lifting rod (601). The third fixing hole is provided on the other side of the lifting rod (601). The second pin shaft (305) is inserted into the third fixing hole to fix the sub-arm (301) to the top of the lifting rod (601).

9. The monorail elevator safety clamp lifting device according to claim 8, characterized in that: An adjustment gasket (306) is provided between the second pin shaft (305) and the lifting rod (601).

10. A double-track elevator safety clamp lifting device, comprising two single-track elevator safety clamp lifting devices according to claim 9 arranged side by side, characterized in that: One of the transmission shafts (201) of the monorail elevator safety clamp lifting device is not provided with a water drop plate (202), a first limit block (104), and a second limit block (105); the other transmission shaft (201) of the monorail elevator safety clamp lifting device is not provided with a drive disc (106) and a safety member (5); and the two transmission shafts (201) are connected via a connecting shaft (7).

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