Elevator safety protection device

Abstract

The utility model belongs to the technical field of elevators, and particularly relates to an elevator safety protection device which comprises a lower base, a connecting rod fixedly installed at the upper end of the lower base, a hydraulic rod fixedly installed at one end of the connecting rod, an upper base fixedly installed at the upper end of the connecting rod, a lifting assembly arranged at the upper end of the upper base, and an anti-skid assembly arranged at the upper end of the lifting assembly. According to the safety protection device, an electric cylinder is started to drive a rack to move, a first gear is driven to rotate under the action of meshing connection, then two second gears on a round rod are driven to rotate, due to the fact that the second gears are in meshing connection with a gear ring, the gear ring can move upwards to drive a top plate to move upwards, and a user can place goods on the top plate conveniently; and then the rack moves reversely to drive the top plate to move downwards, so that the goods can descend in the rectangular frame, loading and unloading of the goods are facilitated, meanwhile, the positions of the goods are limited, the goods are prevented from falling off in the carrying process, and the safety degree is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a safety protection device for an elevator. Background Art

[0002] An elevator is a commonly used machine for lifting goods. When setting up an elevator, a passage is usually set up in the building, and the elevator is placed in the passage to improve the safety performance during the operation of the elevator. A feed port should be set up on the building to feed goods into the elevator.

[0003] A safety protection device for an elevator is disclosed in the patent document with publication number CN207258960U, which aims to solve the problem of poor protection performance of elevators in the prior art. The utility model provides a safety protection device for an elevator, which uses a rolling shutter door to cover the feed port, and a switch is set on the feed port. The switch communicates with the controller that controls the elevator, and prevents the elevator from opening when the rolling shutter door is not closed. This solution greatly improves the safety performance of the elevator, effectively avoiding the situation where the technicians open the elevator without evacuating, thereby avoiding the occurrence of safety accidents. There are at least two switches, and this setting is mainly to avoid malfunction of the switches. The elevator can only be opened after all switches are triggered, which avoids the technicians accidentally touching the switch when transporting goods and causing the elevator to malfunction, thereby improving the stability of the elevator during operation.

[0004] However, this device may not be able to adjust the height of the goods when loading and unloading goods, and may not be able to effectively limit the position of the goods, making the goods easy to fall during transportation, causing safety accidents. Summary of the Invention

[0005] The purpose of the present utility model is to provide a safety protection device for an elevator to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a safety protection device for an elevator, comprising a lower base, a connecting rod fixedly mounted on the upper end of the lower base, a hydraulic rod fixedly mounted on one end of the connecting rod, an upper base fixedly mounted on the upper end of the connecting rod, a lifting assembly provided on the upper end of the upper base, and an anti-slip assembly provided on the upper end of the lifting assembly;

[0007] The lifting assembly includes a rectangular frame fixedly connected to the upper end of the upper base, a concave plate fixedly connected to the inner surface of the rectangular frame, a round rod rotatably connected to the inner surface of the concave plate, a gear 1 fixedly connected to the middle of the outer surface of the round rod, a gear 2 fixedly connected to the outer surface of the round rod symmetrically front and back, a notched cylinder fixedly connected to the inner surface of the rectangular frame symmetrically front and back, two gear rings meshingly connected to the inner surfaces of the notched cylinders slidably connected, and the upper ends of the two gear rings are commonly fixedly connected to a top plate slidably connected to the inner surface of the rectangular frame.

[0008] Preferably, an electric cylinder is fixedly connected to the right portion of the inner surface of the rectangular frame, and one end of the electric cylinder is fixedly connected to a rack meshing with gear one.

[0009] Preferably, a rectangular groove is symmetrically opened at the upper end of the rectangular frame, and a spring 1 is fixedly connected to the lower inner surface of the two rectangular grooves symmetrically on the left and right, and the upper end of the spring 1 on the same side is fixedly connected to a rectangular plate slidably connected to the rectangular groove.

[0010] Preferably, rollers are fixedly connected to the outer surface of the round rod symmetrically in front and back, and the outer surfaces of the two rollers are both wrapped with a pull rope fixedly connected to the lower end of the rectangular plate.

[0011] Preferably, the four spring cavities are each provided with a telescopic rod, and both ends of the four telescopic rods are fixedly connected to the lower portion of the inner surface of the rectangular groove and the lower end of the rectangular plate respectively.

[0012] Preferably, the anti-slip component includes an anti-slip plate, and circular grooves are symmetrically opened on the upper end of the top plate. The lower parts of the inner surfaces of the two circular grooves are fixedly connected with dovetail slide rods, and the upper ends of the two dovetail slide rods are slidably connected with a locking arc block.

[0013] Preferably, the outer surfaces of the two dovetail slide bars are each sleeved with a spring 2, and the two ends of the two springs 2 are respectively fixedly connected to the lower end of the locking arc block and the lower part of the inner surface of the circular groove.

[0014] Preferably, the upper end of the anti-slide plate is provided with locking holes symmetrically on the left and right, and the size and shape of the inner surfaces of the two locking holes are adapted to the size and shape of the outer surface of the locking arc surface block.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This safety protection device drives the rack to move by starting the electric cylinder, which drives gear one to rotate under the action of the meshing connection, and then drives the two gears two on the round rod to rotate. Since gear two is meshed with the gear ring, the gear ring will move upward, driving the top plate upward, making it convenient for users to place goods on the top plate. Then, the top plate is driven downward by the reverse movement of the rack, so that the goods can be lowered into the rectangular frame, which is convenient for loading and unloading of goods and limits the position of the goods to prevent goods from falling during transportation, thereby improving safety.

[0017] The safety protection device drives the pull rope to tighten or loosen by the forward and reverse rotation of the roller along with the round rod, driving the two rectangular plates to complete the corresponding lifting operations in the process of the top plate rising and falling on the inner surface of the rectangular groove, which facilitates the user to load and unload goods, reduces the loading and unloading intensity of goods, improves work efficiency, and reduces the user's workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic structural diagram of a rectangular groove of the present invention;

[0021] Figure 4 This is a schematic diagram of the explosion effect of the lifting assembly of the utility model;

[0022] Figure 5 This is a schematic cross-sectional view of the anti-slip assembly of the present invention;

[0023] Figure 6 For the utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0024] In the figure: 1. Lower base; 2. Connecting rod; 3. Hydraulic rod; 4. Upper base; 5. Lifting assembly; 51. Rectangular frame; 52. Rectangular groove; 53. Spring 1; 54. Rectangular plate; 55. Concave plate; 56. Electric cylinder; 57. Round rod; 58. Gear 1; 59. Rack; 510. Gear 2; 511. Notched cylinder; 512. Gear ring; 513. Top plate; 514. Roller; 515. Pull rope; 516. Telescopic rod; 6. Anti-slip assembly; 61. Anti-slip plate; 62. Circular groove; 63. Positioning hole; 64. Dovetail slide; 65. Positioning arc block; 66. Spring 2. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 - Figure 6 The utility model provides a technical solution: a safety protection device for a lift, comprising a lower base 1, a connecting rod 2 is fixedly mounted on the upper end of the lower base 1, a hydraulic rod 3 is fixedly mounted on one end of the connecting rod 2, an upper base 4 is fixedly mounted on the upper end of the connecting rod 2, a lifting assembly 5 is provided on the upper end of the upper base 4, and an anti-slip assembly 6 is provided on the upper end of the lifting assembly 5;

[0027] The lifting assembly 5 includes a rectangular frame 51 fixedly connected to the upper end of the upper base 4, a concave plate 55 fixedly connected to the inner surface of the rectangular frame 51, a round rod 57 rotatably connected to the inner surface of the concave plate 55, a gear 1 58 fixedly connected to the middle of the outer surface of the round rod 57, a gear 2 510 symmetrically fixedly connected to the outer surface of the round rod 57 front and back, a notched cylinder 511 fixedly connected to the inner surface of the rectangular frame 51 symmetrically front and back, a gear ring 512 meshing with the gear 2 510 slidably connected to the inner surfaces of the two notched cylinders 511, and a top plate 513 slidably connected to the inner surface of the rectangular frame 51 is fixedly connected to the upper ends of the two gear rings 512.

[0028] An electric cylinder 56 is fixedly connected to the right part of the inner surface of the rectangular frame 51, and one end of the electric cylinder 56 is fixedly connected to a rack 59 meshing with gear 1 58. When the goods are placed on the top plate 513, the electric cylinder 56 is started to drive the rack 59 to move, and the meshing connection drives the gear 1 58 to rotate, thereby driving the two gears 2 510 on the round rod 57 to rotate. Since the gear 2 510 is meshing with the gear ring 512, the gear ring 512 will move upward and drive the top plate 513 to move upward, so that the user can place the goods on the top plate 513, and then the reverse movement of the rack 59 drives the top plate 513 to move downward, so that the goods can be lowered into the rectangular frame 51, which is convenient for loading and unloading of goods and limiting the position of the goods.

[0029] Rectangular grooves 52 are symmetrically opened on the front and back ends of the upper end of the rectangular frame 51, and springs 53 are fixedly connected to the lower inner surfaces of the two rectangular grooves 52 symmetrically on the left and right. The upper ends of the springs 53 on the same side are fixedly connected to a rectangular plate 54 that is slidably connected to the rectangular groove 52, so that the rectangular plate 54 can slide on the inner surface of the rectangular groove 52 to cooperate with the top plate 513 to complete the lifting function.

[0030] Rollers 514 are symmetrically fixedly connected to the outer surface of the round rod 57 at the front and back ends. The outer surfaces of the two rollers 514 are wrapped with pull ropes 515 fixedly connected to the lower ends of the rectangular plates 54. As a result, the rollers 514 drive the pull ropes 515 to tighten or loosen as the round rod 57 rotates forward and backward, driving the two rectangular plates 54 to complete the lifting and lowering, which is convenient for loading and unloading and limiting the position of goods.

[0031] The inner cavities of the four springs 53 are each provided with a telescopic rod 516, and the two ends of the four telescopic rods 516 are respectively fixedly connected to the lower part of the inner surface of the rectangular groove 52 and the lower end of the rectangular plate 54, thereby limiting the bending deformation of the spring 53 and improving the service life of the spring 53.

[0032] The anti-slip component 6 includes an anti-slip plate 61, and circular grooves 62 are symmetrically opened on the upper end of the top plate 513. The lower parts of the inner surfaces of the two circular grooves 62 are fixedly connected with dovetail slides 64. The upper ends of the two dovetail slides 64 are slidably connected with a locking arc block 65, so that the locking arc block 65 can slide at one end of the dovetail slide 64 to cooperate with other components to play a role.

[0033] The upper end of the anti-slide plate 61 is symmetrically provided with locking holes 63 , and the size and shape of the inner surfaces of the two locking holes 63 match the size and shape of the outer surface of the locking arc block 65 .

[0034] The outer surfaces of the two dovetail slide bars 64 are both sleeved with springs 2 66 , and the two ends of the two springs 2 66 are respectively fixedly connected to the lower end of the locking arc block 65 and the lower part of the inner surface of the circular groove 62 , so that the locking arc block 65 can disassemble or fix the anti-slide plate 61, which is convenient for users to replace.

[0035] Working principle: When in use, the electric cylinder 56 is started to drive the rack 59 to move, and the gear 1 58 is driven to rotate under the action of the meshing connection, and then the two gears 2 510 on the round rod 57 are driven to rotate. Since the gear 2 510 is meshed with the gear ring 512, the gear ring 512 will move upward and drive the top plate 513 to move upward, and vice versa. At the same time, the roller 514 drives the pull rope 515 to tighten as the round rod 57 rotates, and then pulls the two rectangular plates 54 to move downward on the inner surface of the rectangular groove 52, so that the spring 1 53 is in a compressed state. At this time, the user can place the goods on the upper end of the top plate 513, and then through the reverse movement of the rack 59, the top plate 513 moves downward and drives the goods into the inner cavity of the rectangular frame 51. At the same time, the roller 514 relaxes the pull rope 515, so that the two rectangular plates 54 are reset under the compression reaction of spring 1 53, and the goods are limited in the rectangular frame 51. The upper base 4 is raised and lowered by the cooperation of the hydraulic rod 3 and the connecting rod 2, so that the goods can be transported to the set position, preventing the goods from falling during the transportation process, making it convenient for users to load and unload goods. At the same time, the anti-slide plate 61 can increase the friction at the bottom of the goods. During long-term use, the locking arc block 65 can be pressed to make the locking arc block 65 slide on the outer surface of the dovetail slide bar 64. The spring 2 66 is in a compressed state, and the locking arc block 65 will no longer limit and fix the anti-slide plate 61. The user can then replace the appropriate anti-slide plate 61.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A safety protection device for an elevator, comprising a lower base (1), characterized in that: A connecting rod (2) is fixedly mounted on the upper end of the lower base (1), a hydraulic rod (3) is fixedly mounted on one end of the connecting rod (2), an upper base (4) is fixedly mounted on the upper end of the connecting rod (2), a lifting assembly (5) is provided on the upper end of the upper base (4), and an anti-slip assembly (6) is provided on the upper end of the lifting assembly (5); The lifting assembly (5) includes a rectangular frame (51) fixedly connected to the upper end of the upper base (4), the inner surface of the rectangular frame (51) is fixedly connected to a concave plate (55), the inner surface of the concave plate (55) is rotatably connected to a round rod (57), the middle part of the outer surface of the round rod (57) is fixedly connected to a gear 1 (58), the outer surface of the round rod (57) is symmetrically fixedly connected to a gear 2 (510) in the front and back directions, the inner surface of the rectangular frame (51) is symmetrically fixedly connected to a notched cylinder (511), the inner surfaces of the two notched cylinders (511) are slidably connected to a gear ring (512) meshing with the gear 2 (510), and the upper ends of the two gear rings (512) are fixedly connected to a top plate (513) slidably connected to the inner surface of the rectangular frame (51).

2. The elevator safety protection device according to claim 1, characterized in that: An electric cylinder (56) is fixedly connected to the right portion of the inner surface of the rectangular frame (51), and one end of the electric cylinder (56) is fixedly connected to a rack (59) meshing with gear 1 (58).

3. The elevator safety protection device according to claim 1, characterized in that: A rectangular groove (52) is symmetrically provided at the upper end of the rectangular frame (51), and a spring (53) is fixedly connected to the lower inner surfaces of the two rectangular grooves (52) symmetrically on the left and right. The upper ends of the springs (53) on the same side are fixedly connected to a rectangular plate (54) that is slidably connected to the rectangular groove (52).

4. The elevator safety protection device according to claim 3, characterized in that: Rollers (514) are fixedly connected to the outer surface of the round rod (57) in a front-to-back symmetrical manner, and the outer surfaces of the two rollers (514) are both wound with a pull rope (515) fixedly connected to the lower end of the rectangular plate (54).

5. The elevator safety protection device according to claim 4, characterized in that: The inner cavities of the four springs (53) are each provided with a telescopic rod (516), and the two ends of the four telescopic rods (516) are respectively fixedly connected to the lower portion of the inner surface of the rectangular groove (52) and the lower end of the rectangular plate (54).

6. The elevator safety protection device according to claim 1, characterized in that: The anti-slip assembly (6) includes an anti-slip plate (61), and circular grooves (62) are symmetrically opened on the upper end of the top plate (513). The lower parts of the inner surfaces of the two circular grooves (62) are fixedly connected to dovetail slide bars (64), and the upper ends of the two dovetail slide bars (64) are slidably connected to a locking arc block (65).

7. The elevator safety protection device according to claim 6, characterized in that: The outer surfaces of the two dovetail slide bars (64) are both sleeved with springs 2 (66), and the two ends of the two springs 2 (66) are fixedly connected to the lower end of the positioning arc block (65) and the lower part of the inner surface of the circular groove (62), respectively.

8. The elevator safety protection device according to claim 7, characterized in that: The upper end of the anti-slide plate (61) is provided with latching holes (63) symmetrically on the left and right sides. The size and shape of the inner surfaces of the two latching holes (63) match the size and shape of the outer surface of the latching arc surface block (65).

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