CN216235832U - Anti-falling freight elevator - Google Patents
Anti-falling freight elevator Download PDFInfo
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- CN216235832U CN216235832U CN202122790887.7U CN202122790887U CN216235832U CN 216235832 U CN216235832 U CN 216235832U CN 202122790887 U CN202122790887 U CN 202122790887U CN 216235832 U CN216235832 U CN 216235832U
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Abstract
The utility model provides a falling-prevention freight elevator which comprises a base platform, a support, a toothed plate, a top block, a spring and an electromagnet, wherein the base platform comprises a frame and a roller, and the roller is arranged on the frame; the bracket comprises two upright posts which are arranged in parallel, a first guide rail is arranged on the first side surface of each upright post, and one side of the frame is connected to the first guide rail in a sliding way through a sliding block; the top of the upright post is provided with a driving mechanism for driving the base station to move up and down; the toothed plate is arranged between the two upright posts and is parallel to the upright posts; the toothed plate is provided with a row of teeth, and the teeth comprise inclined planes and steps; the jacking block is matched with the teeth, can ascend along the inclined planes of the teeth and the steps and can be clamped on the steps; the frame is provided with a through hole, the spring is installed in the through hole, the electromagnet is located at one end of the spring, and the ejector block is located at the other end of the spring. The roller is added in the scheme, so that the resistance to moving the goods is greatly reduced, and the goods can be loaded and unloaded conveniently; the base station can be prevented from falling through the toothed plate, the ejector block, the spring and the electromagnet.
Description
Technical Field
The utility model relates to the technical field of elevators, in particular to a falling-proof freight elevator.
Background
The structure of the freight elevator is similar to that of a passenger elevator for transporting passengers, but the safety level of the freight elevator is lower than that of the passenger elevator, the freight elevator can only carry the goods to safely move up and down, and the freight elevator can only transport the goods and can not transport the passengers.
Freight elevators typically include a car and a winch that pulls the car up and down. The car is the box of a cuboid shape, and one side of box is provided with the cabinet door, and when needs shipment, the cabinet door is opened, then in goods pushed the box from cabinet door department. However, when loading, the goods receives the size restriction of cabinet door opening, and some goods though can be held by the box, can not transport to in the box.
The cable is wound in the winch, the car is pulled by the cable, and if the cable is broken in the using process, the car can fall. In order to avoid such accidents, the prior art solutions have been to continuously increase the strength of the cable and the reliability of the connection between the cable and the car. However, even then, problems may arise, and improvements are needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a falling-proof freight elevator, which aims to solve the technical problems that the existing freight elevator is inconvenient to load and a car can fall.
In order to solve the technical problem, the utility model provides a falling-prevention freight elevator which comprises a base platform, a support, a toothed plate, a top block, a spring and an electromagnet, wherein the base platform comprises a frame and rollers, and the rollers are arranged on the frame; the upper surface of the roller is higher than the upper surface of the frame, or the upper surface of the roller and the upper surface of the frame are on the same plane;
the support comprises two parallel upright posts, a first guide rail is arranged on a first side surface of each upright post, and one side of the frame is connected to the first guide rail in a sliding manner through a sliding block;
the top of the upright post is provided with a driving mechanism for driving the base platform to move up and down on the first guide rail;
the toothed plate is arranged between the two upright posts and is parallel to the upright posts; the toothed plate is provided with a row of teeth, and the teeth comprise inclined planes and steps; the distance between the upper end of the inclined plane and the ejector block is smaller than the distance between the lower end of the inclined plane and the ejector block; the height of one end, close to the top block, of the step is larger than that of the other end of the step;
the top block is matched with the teeth, can ascend along the inclined planes and the steps of the teeth and can be clamped on the steps; the top block is installed on the frame through a pin, and is made of a ferromagnetic material;
the frame is provided with a through hole, the spring is installed in the through hole, the electromagnet is located at one end of the spring, and the ejector block is located at the other end of the spring.
Optionally, a speed sensor or an acceleration sensor is installed on the frame, the freight elevator further includes a controller, the speed sensor or the acceleration sensor is electrically connected to the controller, the controller is electrically connected to the electromagnet, and the controller is configured to control power-off and power-on of the electromagnet.
Optionally, the rollers comprise a plurality of longitudinal rollers and a transverse roller; the plurality of longitudinal rollers are arranged in parallel at intervals; the connecting line between the two upright posts is parallel to the extending direction of the transverse roller, the transverse roller is perpendicular to the longitudinal roller and is arranged at intervals, and the transverse roller is positioned on one side, far away from the upright posts, of the longitudinal roller.
Optionally, the upper surfaces of the plurality of longitudinal rollers and the upper surface of the transverse roller are higher than the upper surface of the frame.
Optionally, the support comprises a cross beam, and the cross beam is connected between the tops of the two upright columns; the driving mechanism comprises a motor, and the motor is arranged on the cross beam; the motor drives a chain wheel to rotate through a speed reducer, and a chain is arranged on the chain wheel; one end of the chain is connected with the jacking block, and the other end of the chain is connected with the balancing weight.
Optionally, pulleys are arranged at four corners of the counterweight block, and grooves are formed in the pulleys; a second guide rail is arranged on the second side surface of each upright column, and the balancing weight is positioned between the second side surfaces of the two upright columns; the pulley passes through the recess card is in on the second guide rail, the balancing weight passes through the pulley relatively the second guide rail slides from top to bottom.
Optionally, the weight of the counterweight block is equal to the weight of the base.
Optionally, the base station further includes two stabilizer bars, and extension bars are respectively disposed at the bottoms of the two ends of one side of the frame, which is close to the upright post; the two stabilizer bars are arranged in parallel and at intervals; one end of the stabilizer bar is connected with the bottom of the frame, and the other end of the stabilizer bar is connected with the bottom of the extension rod.
Optionally, one end of the stabilizer bar is connected to a central position of the bottom of the frame.
Optionally, the bracket further comprises two bottom rods, two diagonal support rods and a plurality of connecting rods; the bottom of each upright post is vertically connected with one bottom rod; the two bottom rods are arranged in parallel and at intervals; one end of the inclined strut is connected with the upright post, and the other end of the inclined strut is connected with the bottom rod; the two inclined supporting rods are arranged in parallel at intervals; the connecting rod is connected two between the stand, many the connecting rod is parallel and the interval sets up.
According to the anti-falling freight elevator provided by the utility model, the rollers are additionally arranged, so that the resistance of moving goods is greatly reduced, and the goods can be conveniently loaded and unloaded; because the cabinet door and the box body are cancelled, when goods are loaded and unloaded, the goods are not limited by the width of the cabinet door any more; the base station can be prevented from falling through the toothed plate, the ejector block, the spring and the electromagnet.
Drawings
Fig. 1 is a schematic perspective view of a fall-preventing freight elevator according to an embodiment of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a partial enlarged view of the bottom of fig. 2.
Fig. 4 is a cross-sectional view of fig. 2.
Fig. 5 is a partially enlarged view within a circle in fig. 4.
[ reference numerals are described below ]:
the device comprises a base station-1, a support-2, a driving mechanism-3, a buffer-4, an upper limit switch-5, a lower limit switch-6, a toothed plate-7, a top block-8, a spring-9 and an electromagnet-10;
a frame-11, a longitudinal roller-12, a transverse roller-13, a stabilizing rod-14, an extension rod-15, a bottom rod-16, a diagonal brace-17 and a connecting rod-18;
the device comprises a vertical column-20, a first guide rail-21 and a cross beam-22;
motor-31, reducer-32, chain wheel-33, chain-34.
Tooth-71, bevel-711, step-712; pin-81; a through hole-111.
Detailed Description
In order to make the objects, advantages and features of the utility model more apparent, a fall-preventing freight elevator according to the utility model will be described in further detail with reference to the accompanying drawings. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
In the description of the present invention, the terms "first", "second", etc. are used for convenience of description and reference, but are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined by a qualifier such as "first," "second," etc., may explicitly or implicitly include one or more of that feature.
As shown in fig. 1, 4 and 5, the present embodiment provides a fall-preventing freight elevator, which includes a base 1, a bracket 2, a tooth plate 7, a top block 8, a spring 9 and an electromagnet 10, wherein the base 1 includes a frame 11 and rollers, and the rollers are mounted on the frame 11; the upper surface of the roller is higher than the upper surface of the frame 11, or the upper surface of the roller and the upper surface of the frame 11 are on the same plane; the support 2 comprises two upright posts 20 arranged in parallel, a first guide rail 21 is arranged on a first side surface of each upright post 20, and one side of the frame 11 is connected to the first guide rail 21 in a sliding manner through a sliding block; the top of the upright post 20 is provided with a driving mechanism 3 for driving the base platform 1 to move up and down on the first guide rail 21; the toothed plate 7 is mounted between the two uprights 20, the toothed plate 7 being parallel to the uprights 20; a row of teeth 71 are arranged on the tooth plate 7, and the teeth 71 comprise an inclined plane 711 and a step 712; the distance between the upper end of the inclined plane 711 and the top block 8 is smaller than the distance between the lower end of the inclined plane 711 and the top block 8; the height of the step 712 close to one end of the top block 8 is greater than that of the other end; the top block 8 is matched with the tooth 71, and the top block 8 can ascend along the inclined plane 711 and the step 712 of the tooth 71 and can be clamped on the step 712; the top block 8 is installed on the frame 11 through a pin 81, and the top block 8 is made of a ferromagnetic material; the frame 11 is provided with a through hole 111, the spring 9 is installed in the through hole 111, the electromagnet 10 is located at one end of the spring 9, and the top block 8 is located at the other end of the spring 9.
When the freight elevator is used, goods can be directly pushed onto the rollers from three sides (three sides are the sides close to the first guide rail 21) of the frame 11, the rollers can rotate under the action of the pushing force, the rollers can conveniently move the goods to the middle position close to the frame 11, when the pushing of the goods is stopped, the rollers stop rotating, the goods are parked on the rollers, and then the base 1 is driven to ascend or descend by the driving mechanism 3.
When the freight elevator is carrying goods upwards, the base 1 is lifted up along the first guide rail 21 with the goods, during which the top piece 8 slides over the inclined surface 711 and the step 712 on the tooth 71, the inclined surface 711 and the step 712 providing resistance to the tooth 71 but not completely blocking the lifting of the base 1. If the base 1 suddenly descends, the top block 8 is caught on the undercut (i.e., the step 712) at the top of the tooth 71, and the base 1 does not fall. In the normal descending process of the base station 1, the electromagnet 10 is electrified and adsorbs the top block 8, the top block 8 can rotate around the pin 81, and the top block 8 retracts, so that the normal descending of the base station 1 can not be blocked. If the chain 34 or the steel wire rope for hoisting the base platform 1 is suddenly broken in the descending process, the electromagnet 10 is powered off, the ejecting block 8 is ejected out under the action of the spring 9, and the ejecting block 8 is clamped on the barb at the top of the tooth 71, so that the base platform 1 can be prevented from being out of control and falling. The electromagnet 10 may be manually de-energized manually, or de-energizing and energizing of the electromagnet 10 may be controlled according to the speed or acceleration of the base 1 using a speed sensor or an acceleration sensor and a controller.
According to the anti-falling freight elevator provided by the embodiment, the rollers are additionally arranged, so that the resistance of moving goods is greatly reduced, and the goods can be conveniently loaded and unloaded; because the cabinet door and the box body are cancelled, when goods are loaded and unloaded, the goods are not limited by the width of the cabinet door any more; the base platform 1 can be prevented from falling through the toothed plate 7, the top block 8, the spring 9 and the electromagnet 10.
Optionally, as shown in fig. 5, a speed sensor or an acceleration sensor is mounted on the frame 11, the freight elevator further includes a controller, the speed sensor or the acceleration sensor is electrically connected to the controller, the controller is electrically connected to the electromagnet 10, and the controller is configured to control the power-off and power-on of the electromagnet 10. When the speed or the acceleration of the base station 1 exceeds a preset threshold value, the speed sensor or the acceleration sensor can send a signal to the controller, and the controller enables the electromagnet 10 to be powered off according to the signal; when the speed or the acceleration of the base station 1 does not exceed a preset threshold value, the speed sensor or the acceleration sensor does not send a signal to the controller, and the electromagnet 10 keeps the electrified state. The controller may be manually controlled by which the de-energisation and energisation of the electromagnet 10 may be controlled.
Alternatively, as shown in fig. 1, the rollers include a plurality of longitudinal rollers 12 and a transverse roller 13; a plurality of the longitudinal rollers 12 are arranged in parallel and at intervals; the connecting line between the two upright columns 20 is parallel to the extending direction of the transverse roller 13, the transverse roller 13 is perpendicular to the longitudinal roller 12 and is arranged at an interval, and the transverse roller 13 is positioned on one side of the longitudinal roller 12 far away from the upright columns 20. The longitudinal rollers 12 and the transverse rollers 13 are provided to push the goods in two directions, thereby facilitating loading and unloading.
Alternatively, as shown in fig. 1, the upper surfaces of the plurality of longitudinal rollers 12 and the upper surfaces of the transverse rollers 13 are higher than the upper surface of the frame 11. This facilitates the mounting of the longitudinal rollers 12 and the transverse rollers 13. In other embodiments, the longitudinal rollers 12 and the transverse rollers 13 may be mounted inside the frame 11, and the upper surfaces of the longitudinal rollers 12, the upper surfaces of the transverse rollers 13 and the upper surface of the frame 11 are located on the same plane.
Alternatively, as shown in fig. 1, the upper surfaces of the plurality of longitudinal rollers 12 and the upper surfaces of the transverse rollers 13 may or may not be located on the same plane. For example, the upper surface of the longitudinal rollers 12 is lower than the upper surface of the transverse rollers 13, and the transverse rollers 13 can prevent the goods from sliding off the longitudinal rollers 12.
Optionally, as shown in fig. 1 and 5, the support 2 includes a cross beam 22, and the cross beam 22 is connected between the tops of the two upright posts 20; the driving mechanism 3 comprises a motor 31, and the motor 31 is installed on the cross beam 22; the motor 31 drives a chain wheel 33 to rotate through a speed reducer 32, and a chain 34 is arranged on the chain wheel 33; one end of the chain 34 is connected with the top block 8, and the other end is connected with the balancing weight. The chain 34 is driven by the motor 31 to rotate so as to drive the base 1 to move up and down. In other embodiments, the base 1 can be moved up and down by the motor 31 driving the steel wire rope to rotate.
Optionally, as shown in fig. 1, pulleys are arranged at four corners of the counterweight block, and the pulleys are provided with grooves; a second guide rail is arranged on the second side surface of each upright post 20, and the balancing weight is positioned between the second side surfaces of the two upright posts 20; the pulley passes through the recess card is in on the second guide rail, the balancing weight passes through the pulley relatively the second guide rail slides from top to bottom. Therefore, the counterweight block can stably move up and down on the second guide rail, and the counterweight block is prevented from shaking. In fig. 1, two counterweights are shown, said freight elevator having in practice only one counterweight, the two counterweights in fig. 1 representing the two extreme positions of the counterweight at the uppermost and foremost end, respectively.
Alternatively, as shown in fig. 1, the weight of the counter weight is equal to the weight of the base 1. This balances the forces on both ends of the chain 34.
Optionally, as shown in fig. 1 and fig. 3, the base 1 further includes two stabilizing bars 14, and the bottom portions of both ends of one side of the frame 11 close to the upright post 20 are provided with extension bars 15; the two stabilizer bars 14 are arranged in parallel and at intervals; one end of the stabilizer bar 14 is connected to the bottom of the frame 11, and the other end of the stabilizer bar 14 is connected to the bottom of the extension rod 15. The stabilizer bar 14, the extension bar 15 and the frame 11 form a triangular structure, so that the stability of the base 1 can be improved.
Alternatively, as shown in fig. 1 and 3, one end of the stabilizer bar 14 is connected to a central position of the bottom of the frame 11. This can improve the supporting force of the stabilizer bar 14 to the frame 11.
Alternatively, as shown in fig. 1 and 3, a bumper 4 is mounted to a lower surface of the extension pole 15. This prevents the lower surface of the extension rod 15 from colliding with the ground in an abnormal situation, and the bumper 4 is suspended in a normal situation.
Optionally, as shown in fig. 1 to 3, the support 2 further includes two bottom rods 16, two diagonal braces 17, and a plurality of connecting rods 18; the bottom of each upright post 20 is vertically connected with one bottom rod 16; the two bottom rods 16 are arranged in parallel at intervals; one end of the inclined strut 17 is connected with the upright post 20, and the other end is connected with the bottom rod 16; the two inclined supporting rods 17 are arranged in parallel at intervals; the connecting rods 18 are connected between the two upright posts 20, and a plurality of the connecting rods 18 are arranged in parallel at intervals. This improves the stability of the holder 2.
Alternatively, as shown in fig. 1 to 3, the frame 11 is a rectangular frame. This facilitates manufacture and installation of the frame 11. In other embodiments, the frame 11 may be of other shapes.
Optionally, as shown in fig. 1 and 3, an upper limit switch 5 and a lower limit switch 6 are mounted on a third side surface of the upright post 20, the third side surface is parallel to the second side surface, and the base 1 moves up and down between the upper limit switch 5 and the lower limit switch 6; the upper limit switch 5 and the lower limit switch 6 are electrically connected with the motor 31, and the upper limit switch 5 and the lower limit switch 6 are used for controlling the motor 31 to stop running. The upper limit switch 5 and the lower limit switch 6 can limit the stroke of the base 1, and prevent the base 1 from being separated from the first guide rail 21.
In conclusion, the anti-falling freight elevator provided by the utility model has the advantages that the rollers are added, so that the resistance of moving goods is greatly reduced, and the goods can be conveniently loaded and unloaded; because the cabinet door and the box body are cancelled, when goods are loaded and unloaded, the goods are not limited by the width of the cabinet door any more; the base platform 1 can be prevented from falling through the toothed plate 7, the top block 8, the spring 9 and the electromagnet 10.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the present invention.
Claims (10)
1. The anti-falling freight elevator is characterized by comprising a base platform, a support, a toothed plate, a top block, a spring and an electromagnet, wherein the base platform comprises a frame and rollers, and the rollers are mounted on the frame; the upper surface of the roller is higher than the upper surface of the frame, or the upper surface of the roller and the upper surface of the frame are on the same plane;
the support comprises two parallel upright posts, a first guide rail is arranged on a first side surface of each upright post, and one side of the frame is connected to the first guide rail in a sliding manner through a sliding block;
the top of the upright post is provided with a driving mechanism for driving the base platform to move up and down on the first guide rail;
the toothed plate is arranged between the two upright posts and is parallel to the upright posts; the toothed plate is provided with a row of teeth, and the teeth comprise inclined planes and steps; the distance between the upper end of the inclined plane and the ejector block is smaller than the distance between the lower end of the inclined plane and the ejector block; the height of one end, close to the top block, of the step is larger than that of the other end of the step;
the top block is matched with the teeth, can ascend along the inclined planes and the steps of the teeth and can be clamped on the steps; the top block is installed on the frame through a pin, and is made of a ferromagnetic material;
the frame is provided with a through hole, the spring is installed in the through hole, the electromagnet is located at one end of the spring, and the ejector block is located at the other end of the spring.
2. The elevator car of claim 1, wherein a speed sensor or an acceleration sensor is mounted on the frame, the elevator car further comprising a controller, the speed sensor or the acceleration sensor being electrically connected to the controller, the controller being electrically connected to the electromagnet, the controller being configured to control the electromagnet to be de-energized and energized.
3. A fall arrest freight elevator as claimed in claim 1, characterized in that the rollers comprise a plurality of longitudinal rollers and a transverse roller; the plurality of longitudinal rollers are arranged in parallel at intervals; the connecting line between the two upright posts is parallel to the extending direction of the transverse roller, the transverse roller is perpendicular to the longitudinal roller and is arranged at intervals, and the transverse roller is positioned on one side, far away from the upright posts, of the longitudinal roller.
4. A fall arrest freight elevator, as claimed in claim 3, wherein the upper surfaces of the longitudinal rollers and the upper surfaces of the transverse rollers are higher than the upper surface of the frame.
5. The fall arrest freight elevator according to claim 1, characterized in that the support includes a cross bar connected between the tops of the two columns; the driving mechanism comprises a motor, and the motor is arranged on the cross beam; the motor drives a chain wheel to rotate through a speed reducer, and a chain is arranged on the chain wheel; one end of the chain is connected with the jacking block, and the other end of the chain is connected with the balancing weight.
6. The fall arrest freight elevator according to claim 5, characterized in that the four corners of the counterweight are provided with pulleys provided with grooves; a second guide rail is arranged on the second side surface of each upright column, and the balancing weight is positioned between the second side surfaces of the two upright columns; the pulley passes through the recess card is in on the second guide rail, the balancing weight passes through the pulley relatively the second guide rail slides from top to bottom.
7. The fall arrest freight elevator as claimed in claim 5, wherein the weight of the counterweight is equal to the weight of the footing.
8. The fall arrest freight elevator as claimed in claim 1, wherein the base further comprises two stabilizer bars, and the frame is provided with extension bars at the bottom of both ends of one side thereof adjacent to the column; the two stabilizer bars are arranged in parallel and at intervals; one end of the stabilizer bar is connected with the bottom of the frame, and the other end of the stabilizer bar is connected with the bottom of the extension rod.
9. The fall arrest freight elevator according to claim 8, wherein one end of the stabilizer bar is connected to a central position of the bottom of the frame.
10. The fall arrest freight elevator of claim 1, wherein the frame further comprises two bottom bars, two diagonal support bars, and a plurality of connecting bars; the bottom of each upright post is vertically connected with one bottom rod; the two bottom rods are arranged in parallel and at intervals; one end of the inclined strut is connected with the upright post, and the other end of the inclined strut is connected with the bottom rod; the two inclined supporting rods are arranged in parallel at intervals; the connecting rod is connected two between the stand, many the connecting rod is parallel and the interval sets up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122790887.7U CN216235832U (en) | 2021-11-15 | 2021-11-15 | Anti-falling freight elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122790887.7U CN216235832U (en) | 2021-11-15 | 2021-11-15 | Anti-falling freight elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216235832U true CN216235832U (en) | 2022-04-08 |
Family
ID=80940885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122790887.7U Active CN216235832U (en) | 2021-11-15 | 2021-11-15 | Anti-falling freight elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216235832U (en) |
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2021
- 2021-11-15 CN CN202122790887.7U patent/CN216235832U/en active Active
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