Lifting machine with double safety mechanisms

Abstract

The lifting machine with the double-safety mechanism comprises a base, a driving motor is installed on the top of the base, the output end of the driving motor is connected with a two-way lead screw mechanism arranged on one side of an installation block through a driving rod, a limiting ring is installed on the outer side of the driving rod, a plurality of sets of limiting holes are formed in the limiting ring, and the two-way lead screw mechanism is connected with the two-way lead screw mechanism. Limiting holes are formed in the limiting frame, limiting inserting rods used in cooperation with the limiting holes are arranged in the mounting blocks, limiting blocks are arranged on the two sides of the lifting plate and move in sliding grooves formed in the limiting frame, a plurality of sets of inserting grooves are formed in the limiting frame, L-shaped inserting plates can be inserted into the inserting grooves, and the L-shaped inserting plates are connected with the limiting frame through fixing bolts. According to the lifting machine with the double-safety mechanism, in order to solve the problem that in the using process of an existing lifting device, the situation that a bearing table suddenly, violently and drastically falls down possibly occurs, a limiting ring is installed on the outer side of a driving rod, and a plurality of sets of limiting holes are formed in the limiting ring.

Description

Technical Field

[0001] The utility model relates to the technical field of lifts, in particular to a lift with a double insurance mechanism. Background Technique

[0002] Lifting mechanisms are used in warranty equipment in the repair industry. Their product nature and quality directly affect the personal safety of repair personnel and the usage environment of the lift. Among repair and maintenance enterprises of various scales, almost all comprehensive repair shops are equipped with lifting mechanisms to facilitate the inspection of parts to be repaired by lifting the repair parts.

[0003] After retrieval, it is found that in the prior art, such as a lifting mechanism with the publication number CN218025237U, including: a frame, the frame is placed on the ground through bottom casters, and a motor is installed on the left side of the top of the frame; a moving block, moving blocks are slidably installed on both the left and right sides of the top of the frame; a lifting frame, lifting frames are slidably installed up and down on both the left and right sides inside the frame, and hydraulic rods are installed on both the front and back sides of the top of the lifting frame. The output end of the motor is fixedly connected to a shaft rod, and the outer surface of the shaft rod has a double-threaded structure; wherein, the connection mode between the shaft rod and the moving block is a threaded connection. A first support plate is rotatably installed on the top of the left single body of the moving block, and a second support plate is rotatably installed on the top of the right single body of the moving block. This lifting mechanism has good lifting stability, is not easy to cause the mechanism to shake during the lifting process, and is convenient for adjusting the position of the carrying platform according to the size of the inspection part.

[0004] To sum up, the existing lifting device is convenient for adjusting the position of the carrying platform according to the size of the inspection part, but the existing lifting device may suddenly drop sharply and significantly during use. Therefore, a lift with a double insurance mechanism is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a lift with a double insurance mechanism to solve the problem that the existing lifting device may suddenly drop sharply and significantly during use as mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A lifting machine with a double insurance mechanism, including a base, a driving motor is installed on the top of the base, and the output end of the driving motor is connected to a bidirectional lead screw mechanism arranged on one side of the mounting block through a driving rod. A limiting ring is installed on the outer side of the driving rod, and a number of groups of limiting holes are opened on the limiting ring. A limiting insertion rod that cooperates with the limiting holes is arranged inside the mounting block. The bidirectional lead screw mechanism is connected to two driving blocks, and the driving blocks are connected to two sliders through an X connecting frame. The sliders slide in the sliding grooves opened on the fixed strip, and the fixed strip is installed at the bottom of the lifting plate. Limiting blocks are arranged on both sides of the lifting plate, and the limiting blocks move in the sliding grooves opened on the limiting frame. A number of groups of insertion slots are opened on the limiting frame, and an L-shaped insertion plate can be inserted into the insertion slots. The L-shaped insertion plate is connected to the limiting frame through a fixing bolt.

[0007] Preferably, the limiting insertion rod includes an insertion rod, and one end of the insertion rod is connected to a moving plate. The moving plate moves in the moving groove opened on the mounting block, and the other side of the moving plate is connected to the inner wall of one side of the moving groove through symmetrically arranged spring shafts. The moving plate is connected to a driving handle arranged outside the mounting block through a driving plate.

[0008] Through the above technical solutions: It is convenient to limit the limiting ring.

[0009] Preferably, the diameter of the insertion rod is smaller than the inner diameter of the limiting hole.

[0010] Through the above technical solutions: It is convenient for the insertion rod to be inserted into the limiting hole.

[0011] Preferably, a moving through groove that cooperates with the driving plate is opened on the mounting block.

[0012] Through the above technical solutions: It is convenient for the driving plate to move.

[0013] Preferably, the X connecting frame is movably connected to both the driving block and the slider.

[0014] Through the above technical solutions: It is convenient to adjust the height of the X connecting frame.

[0015] Preferably, the limiting frame is installed above the base, and the lifting plate moves inside the limiting frame.

[0016] Through the above technical solutions: Improve the moving stability of the lifting plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the lift with a dual insurance mechanism, in order to solve the problem that the existing lifting device may experience a sudden and drastic drop of the bearing platform during use, a driving motor is installed on the top of the base, and the output end of the driving motor is connected to a bidirectional screw mechanism arranged on one side of the mounting block through a driving rod. A limiting ring is installed on the outer side of the driving rod, and a number of groups of limiting holes are provided on the limiting ring. A limiting insertion rod that cooperates with the limiting holes is arranged inside the mounting block. The bidirectional screw mechanism is connected to two driving blocks, and the driving blocks are connected to two sliders through an X-shaped connecting frame. The sliders slide in the sliding grooves provided on the fixing strips, and the fixing strips are installed at the bottom of the lifting plate. Limiting blocks are arranged on both sides of the lifting plate, and the limiting blocks move in the sliding grooves provided on the limiting frame. A number of groups of insertion slots are provided on the limiting frame, and an L-shaped insertion plate can be inserted into the insertion slots. The L-shaped insertion plate is connected to the limiting frame through a fixing bolt. By providing the limiting insertion rod, the limiting ring and the driving rod are limited, thereby preventing the driving motor from rotating selflessly and causing the lifting plate to drop. The L-shaped insertion plate can also limit the position of the lifting plate to prevent the sudden and drastic drop of the lifting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic front sectional view of the overall structure of the present utility model;

[0019] Figure 2 is a schematic view of the structure of the limiting ring of the present utility model;

[0020] Figure 3 For the present utility model Figure 1 is an enlarged schematic view of the structure at position A in;

[0021] Figure 4 For the present utility model Figure 1 is an enlarged schematic view of the structure at position B in.

[0022] In the figure: 1, base; 2, driving motor; 201, driving rod; 2011, limiting ring; 2012, limiting hole; 3, mounting block; 4, bidirectional screw mechanism; 401, driving block; 402, X-shaped connecting frame; 403, slider; 404, fixing strip; 405, lifting plate; 406, limiting block; 407, limiting frame; 408, insertion slot; 409, L-shaped insertion plate; 5, limiting insertion rod; 501, insertion rod; 502, moving plate; 503, spring shaft; 504, driving plate; 505, driving handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 , the present utility model provides a technical solution: a lift with a dual insurance mechanism. A drive motor 2 is installed on the top of a base 1, and the output end of the drive motor 2 is connected to a bidirectional lead screw mechanism 4 provided on one side of a mounting block 3 through a drive rod 201.

[0025] Specifically, a limit ring 2011 is installed on the outer side of the drive rod 201, and a number of groups of limit holes 2012 are provided on the limit ring 2011. A limit insertion rod 5 that cooperates with the limit holes 2012 is provided inside the mounting block 3. The bidirectional lead screw mechanism 4 is connected to two drive blocks 401, and the drive blocks 401 are connected to two sliders 403 through an X-shaped connecting frame 402. The sliders 403 slide in a chute provided on a fixed strip 404, and the fixed strip 404 is installed at the bottom of a lifting plate 405. Limit blocks 406 are provided on both sides of the lifting plate 405, and the limit blocks 406 move in a chute provided on a limit frame 407. A number of groups of insertion slots 408 are provided on the limit frame 407, and an L-shaped insertion plate 409 can be inserted inside the insertion slots 408. The L-shaped insertion plate 409 is connected to the limit frame 407 through a fixing bolt.

[0026] Specifically, the limit insertion rod 5 includes an insertion rod 501, and one end of the insertion rod 501 is connected to a moving plate 502. The moving plate 502 moves in a moving groove provided in the mounting block 3, and the other side of the moving plate 502 is connected to the inner wall of one side of the moving groove through symmetrically arranged spring shafts 503. The moving plate 502 is connected to a drive handle 505 provided outside the mounting block 3 through a drive plate 504.

[0027] In a further embodiment, the diameter of the insertion rod 501 is smaller than the inner diameter of the limit hole 2012, which is convenient for the insertion rod 501 to be inserted into the limit hole 2012 later, so as to limit the limit ring 2011.

[0028] In a still further embodiment, a moving through groove that cooperates with the drive plate 504 is provided on the mounting block 3, which is convenient for driving the drive plate 504 to move through the drive handle 505 later.

[0029] During use, the limit insertion rod 5 can be set to limit the limit ring 2011 and the driving rod 201, thereby preventing the driving motor 2 from rotating self - sufficiently and causing the bidirectional lead screw mechanism 4 to rotate, which may lead to the dropping of the lifting plate 405. When it is necessary to limit the limit ring 2011, loosen the driving handle 505, and the moving plate 502 moves under the elastic force of the spring shaft 503, thereby driving the insertion rod 501 to move, so that the insertion rod 501 is inserted into the inner side of the limit hole 2012, thus preventing the limit ring 2011 and the driving rod 201 from rotating.

[0030] In the above - mentioned solution, further, a vertical plate cooperating with the bidirectional lead screw mechanism 4 is provided on the top of the base 1, and the bidirectional lead screw mechanism 4 is rotatably connected to the vertical plate.

[0031] Specifically, the X - shaped connecting frame 402 is movably connected to both the driving block 401 and the slider 403.

[0032] Furthermore, the limit frame 407 is installed above the base 1, and the lifting plate 405 moves inside the limit frame 407.

[0033] During use, turn on the driving motor 2. Under the action of the driving motor 2, the bidirectional lead screw mechanism 4 rotates, thereby driving two groups of driving blocks 401 to move through the bidirectional lead screw mechanism 4. Under the action of the movement of the driving block 401, the slider 403 slides in the chute opened in the fixed strip 404. At this time, the lifting plate 405 also moves inside the limit frame 407. After moving to the designated position, observe the position of the limit block 406 and insert the L - shaped insertion plate 409 into the nearest slot 408 below it, and fix the position of the L - shaped insertion plate 409 with a fixing bolt. The setting of the L - shaped insertion plate 409 can support the lifting plate 405 in case of emergencies, avoiding the situation of the lifting plate 405 dropping violently and significantly.

[0034] The terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It is only a simplified description for facilitating the description of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the protected content of the present utility model.

[0035] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A lifting machine with a double safety mechanism, comprising a base (1), characterized in that: A driving motor (2) is installed on the top of the base (1), and the output end of the driving motor (2) is connected to a bidirectional screw mechanism (4) arranged on one side of the mounting block (3) through a driving rod (201), a limiting ring (2011) is installed on the outside of the driving rod (201), and a plurality of groups of limiting holes (2012) are opened on the limiting ring (2011), and a limiting plug rod (5) used in conjunction with the limiting holes (2012) is arranged inside the mounting block (3), the bidirectional screw mechanism (4) is connected to the two groups of driving blocks (401), and the driving blocks (401) are connected through an X-connecting frame (4 02) is connected with two groups of sliders (403), the sliders (403) slide in the slide grooves provided by the fixing strips (404), and the fixing strips (404) are installed at the bottom of the lifting plate (405), and the lifting plate (405) is provided with limit blocks (406) on both sides, and the limit blocks (406) move in the slide grooves provided by the limit frame (407), and the limit frame (407) is provided with a plurality of groups of slots (408), and an L-shaped plug plate (409) can be inserted in the slots (408), and the L-shaped plug plate (409) is connected to the limit frame (407) by fixing bolts.

2. A lifting machine with a double safety mechanism according to claim 1, characterized in that: The limiting plug rod (5) comprises a plug rod (501), and one end of the plug rod (501) is connected to a movable plate (502), the movable plate (502) moves in a movable groove provided in the mounting block (3), and the other side of the movable plate (502) is connected to an inner wall of one side of the movable groove via a symmetrically arranged spring shaft (503), and the movable plate (502) is connected to a driving handle (505) arranged on the outer side of the mounting block (3) via a driving plate (504).

3. A lifting machine with a double safety mechanism according to claim 2, characterized in that: The diameter of the insertion rod (501) is smaller than the inner diameter of the limiting hole (2012).

4. A lifting machine with a double safety mechanism according to claim 1, characterized in that: The mounting block (3) is provided with a movable through slot for use with the driving plate (504).

5. The lifting machine with a double safety mechanism according to claim 1, characterized in that: The X-connecting frame (402), the driving block (401) and the sliding block (403) are all movably connected.

6. A lifting machine with a double safety mechanism according to claim 1, characterized in that: The limiting frame (407) is installed above the base (1), and the lifting plate (405) moves inside the limiting frame (407).

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