A hand chain hoist with safety locking function

Abstract

The utility model discloses a manual hoist with safety locking function relates to manual hoist technical field, and the utility model discloses a mounting box and manual hoist body, the mounting box bottom end is close to the symmetrical groove of opening at the center, the inside slide of groove is connected with vertical rod, the inside rotation of manual hoist body is connected with ratchet wheel, the front end rotation of manual hoist body is connected with carousel, carousel front end and close to the fixed connection of a plurality of limit block no.

Description

TECHNICAL FIELD

[0001] The utility model relates to manual hoist technical field, concretely is a kind of manual hoist with safety locking function. BACKGROUND

[0002] Manual hoist is also called hand-pulled hoist or chain hoist, it is a kind of simple-to-use, portable hand-operated hoist, it is suitable for short-distance lifting of small equipment and goods, it can manually pull chain by small force, and the height of heavy object can be lifted, it is suitable for open-air high place and the site without power supply and narrow space operation;

[0003] In the patent with the name of a kind of quick-mounting structure for manual hoist of China publication number CN217972362U, by moving the manual hoist upwards, the locking head can be moved upwards, the traction insert piece is inserted into the inside of the traction slot, and the locking tongue is pushed out of the inside of the locking slot by relying on the inclined angle of the traction insert piece, so that the hanging shaft is separated from the mounting hole, and the manual hoist is removed.

[0004] However, this device still has some shortcomings, the manual hoist in this technology does not include an emergency braking function, when the manual hoist fails or the user makes a mistake, it is easy to cause the transmitted object to fall rapidly, which threatens the personal safety of the worker, thereby increasing the use risk of the manual hoist in this technology, to solve the above problems, the inventor proposes a kind of manual hoist with safety locking function. UTILITY MODEL CONTENTS

[0005] In order to solve the problem that the manual hoist is easy to cause the transmitted object to fall rapidly when it fails or the user makes a mistake, and increase the use risk of the manual hoist in this technology, the purpose of the utility model is to provide a kind of manual hoist with safety locking function.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme: a kind of manual hoist with safety locking function, including installation box and manual hoist body, the bottom end of the installation box is symmetrically provided with a sliding slot near the center, the sliding slot is slidably connected with a vertical rod inside, the manual hoist body is rotatably connected with a ratchet inside, the front end of the manual hoist body is rotatably connected with a turntable, the front end of the turntable and near the outer ring are fixedly connected with a plurality of limiting blocks one, and the plurality of limiting blocks one are evenly distributed in a ring shape, one end of the ratchet penetrates the manual hoist body and is fixedly connected with the turntable, the front end of the manual hoist body is fixedly connected with a U-shaped plate, the U-shaped plate is slidably inserted with a connecting shaft at the front end center, the connecting shaft is fixedly connected with a disc on one side end near the turntable, and the disc is fixedly connected with a limiting block two on one side end near the center.

[0007] Preferably, a rotating speed sensor is fixedly connected to one side end of the rotating disc near the center of the disc, and a controller is fixedly connected to the inside bottom end of the U-shaped plate near the center.

[0008] Preferably, an auxiliary plate is symmetrically fixedly connected to the opposite ends of the vertical rods near the bottom, and a double-headed electric cylinder is fixedly connected to the inside center of the mounting box, and the output ends of the double-headed electric cylinder are fixedly connected with the vertical rods.

[0009] Preferably, a connecting plate is fixedly connected to one side end of the connecting shaft away from the ratchet wheel, a spring is fixedly connected to the outer ring of the connecting shaft and sleeved to the side end of the connecting plate, and the other end of the spring is fixedly connected with the U-shaped plate.

[0010] Preferably, an electric telescopic rod is fixedly connected to the front end of the U-shaped plate near the bottom, and the output end of the electric telescopic rod is fixedly connected with the connecting plate.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、 the utility model discloses a double-headed electric cylinder is started, and then the mutual cooperation between the auxiliary plate, the vertical rod and the sliding groove is realized, thereby the work of stably limiting the manual hoist body is realized, the manual hoist body is prevented from shaking when working, and the manual hoist body is beneficial to use in a small space.

[0013] 2、 the utility model discloses an electric telescopic rod is started, and then the mutual cooperation between the rotating disc, the connecting plate, the controller, the connecting shaft, the spring, the limiting block one and the limiting block two is realized, thereby the problem that the manual hoist is prone to causing the transmitted article to rapidly descend when malfunctioning or when the user operates incorrectly is solved, and the use risk of the manual hoist in the technical field is increased. ACCURACY

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.

[0015] Figure 1 It is the whole structure schematic view of the utility model.

[0016] Figure 2 It is the mounting box section structure schematic view of the utility model.

[0017] Figure 3 It is the U-shaped plate structure schematic view of the utility model.

[0018] Figure 4 It is the utility modelFigure 3 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Mounting box; 11. Slide groove; 12. Vertical rod; 13. Auxiliary plate; 14. Double-headed electric cylinder; 2. Manual hoist body; 21. Ratchet; 22. Turntable; 23. Speed ​​sensor; 24. Limit block one; 25. U-shaped plate; 26. Disc; 27. Limit block two; 28. Controller; 3. Coupling shaft; 31. Spring; 32. Connecting plate; 33. Electric telescopic rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figures 1-4 As shown, this utility model provides a technical solution: a manual hoist with a safety locking function, including a mounting box 1 and a manual hoist body 2. The mounting box 1 has symmetrically arranged grooves 11 near the center of its bottom end. A vertical rod 12 is slidably connected inside the grooves 11. A ratchet 21 is rotatably connected inside the manual hoist body 2. A turntable 22 is rotatably connected to the front end of the manual hoist body 2. Several limiting blocks 24 are fixedly connected to the front end of the turntable 22 near its outer ring, and these limiting blocks 24 are arranged in a uniform ring. The ratchet 21 is fixedly connected to the manual hoist body 2 and the turntable 22 at one end. A U-shaped plate 25 is fixedly connected to the front end of the manual hoist body 2. A connecting shaft 3 is slidably inserted at the center of the front end of the U-shaped plate 25. A disc 26 is fixedly connected to the side end of the connecting shaft 3 near the turntable 22. A second limiting block 27 is fixedly connected to the side end of the disc 26 near the turntable 22 and near the center. The second limiting block 27 and the first limiting block 24 are arranged in a cross shape, thereby achieving the effect of the second limiting block 27 locking the first limiting block 24.

[0022] A speed sensor 23 is fixedly connected to the center of one side of the turntable 22 near the disk 26.

[0023] By adopting the above technical solution, a speed sensor 23 is set on the side of the turntable 22 in order to cooperate with the controller 28 to start the electric telescopic rod 33.

[0024] A controller 28 is fixedly connected to the bottom of the U-shaped plate 25 near the center.

[0025] By adopting the above technical solution, a controller 28 is set at the bottom of the U-shaped plate 25 to control the start of the electric telescopic rod 33.

[0026] The two vertical rods 12 are symmetrically and fixedly connected with auxiliary plates 13 at opposite ends close to the bottom.

[0027] By adopting the above technical scheme, the auxiliary plates 13 are arranged at the opposite ends of the two vertical rods 12 to prevent the manual hoist body 2 from shaking.

[0028] A double-head electric cylinder 14 is fixedly connected at the center of the inside of the mounting box 1, and the output ends of the double-head electric cylinder 14 are fixedly connected with the vertical rods 12.

[0029] By adopting the above technical scheme, the double-head electric cylinder 14 is operated, so that the fixedly connected vertical rods 12 work.

[0030] A connecting plate 32 is fixedly connected at the side end of the connecting shaft 3 away from the ratchet wheel 21.

[0031] By adopting the above technical scheme, the connecting plate 32 is arranged at the side end of the connecting shaft 3 to drive the disc 26 to move back and forth.

[0032] A spring 31 is fixedly connected at the side end of the connecting plate 32 and sleeved with the outer ring of the connecting shaft 3, and the other end of the spring 31 is fixedly connected with the U-shaped plate 25.

[0033] By adopting the above technical scheme, the spring 31 is arranged at the side end of the connecting plate 32 to reset the connecting shaft 3.

[0034] An electric telescopic rod 33 is fixedly connected at the front end of the U-shaped plate 25 close to the bottom, and the output end of the electric telescopic rod 33 is fixedly connected with the connecting plate 32.

[0035] By adopting the above technical scheme, the output end of the electric telescopic rod 33 is in contact with the connecting plate 32, so that the electric telescopic rod 33 can be controlled to operate to push out the connecting plate 32, and when working in the reverse direction, the connecting plate 32 will complete the rebound effect under the action of the spring 31.

[0036] Working principle: when the device is used, first, the manual hoist body 2 is hung on the hanging ring below the mounting box 1, then the mounting box 1 is installed at the position where it needs to be used, the corresponding screw holes are arranged, and then the manual hoist body 2 is used, the double-head electric cylinder 14 is started to work, so that the two fixedly connected vertical rods 12 move towards each other under the action of the sliding groove 11, thereby driving the two fixedly connected auxiliary plates 13 to move towards each other, and when the auxiliary plates 13 abut against the manual hoist body 2, the work of stably limiting the manual hoist body 2 is realized, which prevents the manual hoist body 2 from shaking during work, and is beneficial to the use of the manual hoist body 2 in a small space.

[0037] When the hand-operated hoist body 2 is out of control, the ratchet 21 will drive the rotating disc 22 to rotate rapidly, at this time, under the cooperation of the rotating speed sensor 23 and the controller 28, the electric telescopic rod 33 will be started, so that the output end of the electric telescopic rod 33 is away from the connecting plate 32, the connecting plate 32 is separated from the force of the electric telescopic rod 33, and under the cooperation of the spring 31, the connecting shaft 3 will drive the disc 26 to move horizontally, and then under the action of the limiting block two 27 and the limiting block one 24, the rotating disc 22 will be clamped, thereby realizing the effect of locking the rotation of the ratchet 21.

[0038] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A hand-operated hoist with a safety locking function, comprising a mounting box (1) and a hand-operated hoist body (2), characterized in that: The mounting box (1) is symmetrically provided with a sliding groove (11) near the bottom end, the sliding groove (11) is internally and slidably connected with a vertical rod (12), the hand-operated hoist body (2) is internally and rotatably connected with a ratchet wheel (21), the hand-operated hoist body (2) is rotatably connected with a rotating disc (22) at the front end, the rotating disc (22) is fixedly connected with a plurality of limiting blocks (24) at the front end and near the outer ring, and the limiting blocks (24) are evenly distributed in a ring shape, one end of the ratchet wheel (21) penetrates through the hand-operated hoist body (2) and is fixedly connected with the rotating disc (22), the hand-operated hoist body (2) is fixedly connected with a U-shaped plate (25) at the front end, the U-shaped plate (25) is slidably and insertingly provided with a connecting shaft (3) at the front end and near the center, the connecting shaft (3) is fixedly connected with a disc (26) at one side end near the rotating disc (22), and the disc (26) is fixedly connected with a limiting block (27) at one side end near the rotating disc (22) and near the center.

2. A manual hoist having a safety locking function as claimed in claim 1, characterized in that, The rotating disc (22) is fixedly connected with a rotating speed sensor (23) at one side end near the disc (26).

3. The manual hoist having a safety locking function according to claim 1, wherein The U-shaped plate (25) is fixedly connected with a controller (28) at the bottom end and near the center.

4. The manual hoist having a safety locking function according to claim 1, wherein Two vertical rods (12) are symmetrically fixedly connected with auxiliary plates (13) at opposite ends and near the bottom.

5. The hand chain hoist having a safety locking function according to claim 1, wherein, The mounting box (1) is fixedly connected with double-head electric cylinders (14) at the center.

6. The hand chain hoist having a safety locking function according to claim 1, wherein, The connecting shaft (3) is fixedly connected with a connecting plate (32) at one side end away from the ratchet wheel (21).

7. A manual hoist having a safety locking function as claimed in claim 6, characterized in that, The connecting plate (32) is fixedly connected with a spring (31) at one side end and outside the connecting shaft (3), and the other end of the spring (31) is fixedly connected with the U-shaped plate (25).

8. A manual hoist having a safety locking function as defined in claim 6, characterized in that, The U-shaped plate (25) is fixedly connected with an electric telescopic rod (33) at the front end and near the bottom, and the output end of the electric telescopic rod (33) is fixedly connected with the connecting plate (32).

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