A length-adjustable telescopic hoisting spreader

Abstract

The utility model relates to hoist technology field, and disclose a length adjustable telescopic hoist, including hoist device and rotary joint, the surface of rotary joint is installed with connecting disc, the top surface welding of connecting disc has connecting piece, hoist device is connected in the bottom end surface of rotary joint. Hoist device includes hoist base, and the inner wall welding of hoist base has hoist square tube no. 1, and the inner wall welding of hoist base has metal slide rail, and hoist square tube no. 1 installs connecting assembly in the inside, and the left and right ends of hoist square tube no. 1 are connected with fastening bolt. The length adjustable telescopic hoist, through being provided with hoist square tube no. 2, hoist insert block and hoist connecting piece, can adjust hoist square tube no. 2 and hoist square tube no. 1 telescopic to the appropriate length according to different component length, the risk of the steel wire rope being ground off because of angle problem is reduced, the safety performance is improved, and simultaneously can be reused, saves the cost.

Description

Technical Field

[0001] This utility model relates to the field of lifting and hoisting equipment technology, specifically to a lifting and hoisting equipment with adjustable and extendable length. Background Technology

[0002] Lifting slings are key tools used in lifting operations to connect the object being lifted to the lifting equipment (such as cranes, hoists, etc.). Their core function is to safely and stably lift, move, or install heavy objects through mechanical structures or load-bearing devices.

[0003] Traditionally, precast components of different sizes are generally hoisted directly using steel wire ropes. However, during the hoisting process, safety accidents often occur due to issues such as the selection of steel wire ropes and stress problems with the steel wire ropes. Furthermore, different sizes and weights of precast components require different steel wire ropes, resulting in significant unnecessary waste. Therefore, traditional hoisting methods urgently need to be changed. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting device with adjustable and extendable length to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a length-adjustable and telescopic lifting device, comprising a lifting device and a rotating connector, wherein a connecting plate is mounted on the surface of the rotating connector, a connector is welded to the top surface of the connecting plate, the lifting device is connected to the bottom surface of the rotating connector, the connecting plate and the rotating connector are combined into a whole, and the connecting plate can rotate 360°.

[0006] The hoisting device includes a hoisting base, a hoisting square tube is welded to the inner wall of the hoisting base, a metal slide rail is welded to the inner wall of the hoisting base, a connecting component is installed inside the hoisting square tube, and fastening bolts are threaded to the left and right ends of the hoisting square tube.

[0007] The connecting assembly includes a second lifting square tube. Movable slide rails are installed on the front and rear surfaces of the second lifting square tube. A lifting block is bolted to the outward end of the second lifting square tube. A metal rod is welded to the inward surface of the lifting block. A limit block is slidably connected to the inward surface of the second lifting square tube. A metal sliding plate is bolted to the inward surface of the second lifting square tube. A lifting connector is welded to the bottom surface of the lifting block. A threaded rod is inserted into the inward end of the lifting block. The second lifting square tube can be controlled to extend and retract to the length of the lifted component by the first lifting square tube component. The stability of the second lifting square tube is enhanced by the connection of the metal rod component.

[0008] Preferably, the threaded rod is inserted into the outward end of the second hoisting square tube. The threaded rod locks and fixes the second hoisting square tube and the hoisting plug, making it convenient to disassemble the hoisting plug and allowing for quick replacement of the hoisting plug.

[0009] Preferably, the movable slide rail is slidably connected to the inner wall surface of the metal slide rail. The movable slide rail moves on the inner wall surface of the metal slide rail, which facilitates pulling the second hoisting square tube and makes it easy to adjust the positions of the first hoisting square tube and the second hoisting square tube.

[0010] Preferably, the fastening bolt is threaded to the inward end of the second hoisting square tube, and the fastening bolt locks and fixes the second hoisting square tube and the first hoisting square tube, thus determining the position of the first hoisting square tube.

[0011] Preferably, the limiting plug is bolted to the left and right ends of the first hoisting square tube, and the limiting plug is connected to the metal sliding plate to block the position of the second hoisting square tube and prevent the second hoisting square tube from detaching from the first hoisting square tube.

[0012] Preferably, there are two hoisting square tubes, which are distributed at the front and rear ends inside the hoisting base. The hoisting base determines the position of the hoisting square tubes and facilitates the adjustment of the position of the second hoisting square tube inside the first hoisting square tube, making the adjustment of the second hoisting square tube more convenient.

[0013] Preferably, the metal sliding plate is slidably connected to the inner wall surface of the hoisting square tube, and there are four metal sliding plates. Two metal sliding plates form a group, and the two groups of metal sliding plates are distributed in a front-to-back manner. The two metal sliding plates in the same group are distributed at the left and right ends inside the hoisting square tube.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This adjustable and telescopic lifting device, equipped with a second lifting square tube, a lifting insert, and a lifting connector, allows for the adjustment of the second and first lifting square tubes to a suitable length according to different component lengths. This facilitates lifting, reduces the risk of wire rope breakage due to angle issues, improves safety performance, and allows for reuse, saving costs.

[0015] This adjustable and telescopic lifting device is equipped with a lifting block, a second lifting square tube, a threaded rod, and a lifting connector. The threaded rod connects the second lifting square tube and the lifting block, making it easy to disassemble the lifting block and the lifting connector. This also makes maintenance of the lifting block and the lifting connector more convenient and reduces maintenance time. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the entire utility model; Figure 2 This is a side view of the present invention; Figure 3 This utility model Figure 2 Schematic diagram of the cross section at point AA; Figure 4 This is a three-dimensional schematic diagram of the hoisting base, connecting plate, and connecting parts of this utility model; Figure 5 This utility model Figure 4 A magnified view of the structure at point A in the diagram; Figure 6 This is a three-dimensional schematic diagram of the connecting component of this utility model; Figure 7 This is a three-dimensional schematic diagram of the hoisting plug, hoisting connector, and metal rod of this utility model.

[0017] In the diagram: 1. Lifting device; 11. Lifting base; 12. Lifting square tube one; 13. Connecting assembly; 131. Lifting square tube two; 132. Limiting block; 133. Insert threaded rod; 134. Metal sliding plate; 135. Lifting block; 136. Lifting connector; 137. Metal rod; 138. Moving slide rail; 14. Metal slide rail; 15. Fastening bolt; 2. Connecting plate; 3. Rotary connector; 4. Connector. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-7 The present invention provides the following technical solution: An adjustable and telescopic lifting device includes a lifting device 1 and a rotating connector 3. A connecting plate 2 is mounted on the surface of the rotating connector 3, and a connector 4 is welded to the top surface of the connecting plate 2. The lifting device 1 is connected to the bottom surface of the rotating connector 3. The connecting plate 2 and the rotating connector 3 are combined into a whole, and the connecting plate 2 can rotate 360°.

[0020] The hoisting device 1 includes a hoisting base 11, a hoisting square tube 12 welded to the inner wall of the hoisting base 11, a metal slide rail 14 welded to the inner wall of the hoisting base 11, a connecting component 13 installed inside the hoisting square tube 12, and fastening bolts 15 threadedly connected to the left and right ends of the hoisting square tube 12.

[0021] The connecting assembly 13 includes a second hoisting square tube 131, and a fastening bolt 15 is threadedly connected to the inward end of the second hoisting square tube 131. The fastening bolt 15 locks and fixes the second hoisting square tube 131 and the first hoisting square tube 12, thus determining the position of the first hoisting square tube 12.

[0022] The front and rear sides of the second hoisting square tube 131 are equipped with movable slide rails 138. The movable slide rails 138 are slidably connected to the inner wall surface of the metal slide rail 14. The movable slide rails 138 move on the inner wall surface of the metal slide rail 14, which facilitates pulling the second hoisting square tube 131 and makes it easy to adjust the position of the first hoisting square tube 12 and the second hoisting square tube 131.

[0023] The outer end of the second hoisting square tube 131 is bolted with a hoisting insert 135. There are two hoisting square tubes 12, which are distributed at the front and rear ends inside the hoisting base 11. The hoisting base 11 determines the position of the first hoisting square tube 12, which facilitates the adjustment of the position of the second hoisting square tube 131 inside the first hoisting square tube 12, making the adjustment of the second hoisting square tube 131 more convenient.

[0024] A metal rod 137 is welded to the inner surface of the lifting plug 135. A limiting plug 132 is slidably connected to the inner end surface of the second lifting square tube 131. A metal sliding plate 134 is bolted to the inner surface of the second lifting square tube 131. The metal sliding plate 134 is slidably connected to the inner wall surface of the first lifting square tube 12. There are four metal sliding plates 134. Two metal sliding plates 134 form a group. The two groups of metal sliding plates 134 are distributed front and back. The two metal sliding plates 134 in the same group are distributed at the left and right ends inside the first lifting square tube 12. The limiting plug 132 is bolted to the left and right ends of the first lifting square tube 12. The limiting plug 132 and the metal sliding plate 134 are connected to block the position of the second lifting square tube 131 and prevent the second lifting square tube 131 from detaching from the first lifting square tube 12.

[0025] A lifting connector 136 is welded to the bottom surface of the lifting block 135. A threaded rod 133 is inserted into the inward end of the lifting block 135. The threaded rod 133 is inserted into the outward end of the lifting square tube 131. The threaded rod 133 locks and fixes the lifting square tube 131 and the lifting block 135, making it easy to disassemble the lifting block 135 and make the replacement of the lifting block 135 quick.

[0026] The second hoisting square tube 131 can be extended and retracted to both ends to the length of the hoisted component by the first hoisting square tube 12. The second hoisting square tube 131 is connected to the component metal rod 137 to enhance stability.

[0027] When in use, rotating the fastening bolt 15 will disengage the second hoisting square tube 131, loosening the connection between the second hoisting square tube 131 and the first hoisting square tube 12.

[0028] Pull the outward end of the lifting block 135, and the lifting block 135 will drive the second lifting square tube 131 to move outward through the threaded rod 133. The second lifting square tube 131 will drive the moving slide rail 138 to move on the inner wall of the metal slide rail 14, so that the movement of the second lifting square tube 131 is smooth.

[0029] When the second hoisting square tube 131 moves outward, the second hoisting square tube 131 drives the metal sliding plate 134 to slide on the inner wall surface of the first hoisting square tube 12. The limiting block 132 is connected to the outward side surface of the metal sliding plate 134, and the limiting block 132 can block the movement of the second hoisting square tube 131.

[0030] Rotate the fastening bolt 15, and the metal slide rail 14 will lock and fix the second hoisting square tube 131 and the first hoisting square tube 12, and determine the position of the second hoisting square tube 131, so that the steel rope can be inserted at the bottom of the hoisting connector 136, making it easier for workers to hoist goods by steel rope.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A length-adjustable and telescopic lifting device, comprising a lifting device (1) and a rotating connector (3), characterized in that: The rotating connector (3) has a connecting plate (2) mounted on its surface, and a connector (4) is welded to the top surface of the connecting plate (2). The hoisting device (1) is connected to the bottom surface of the rotating connector (3). The hoisting device (1) includes a hoisting base (11), a hoisting square tube (12) is welded to the inner wall of the hoisting base (11), a metal slide rail (14) is welded to the inner wall of the hoisting base (11), a connecting component (13) is installed inside the hoisting square tube (12), and fastening bolts (15) are threaded to the left and right ends of the hoisting square tube (12). The connecting assembly (13) includes a second hoisting square tube (131), with movable slide rails (138) installed on the front and rear surfaces of the second hoisting square tube (131). A hoisting plug (135) is bolted to the outward end of the second hoisting square tube (131). A metal rod (137) is welded to the inward surface of the hoisting plug (135). A limit plug (132) is slidably connected to the inward surface of the second hoisting square tube (131). A metal sliding plate (134) is bolted to the inward surface of the second hoisting square tube (131). A hoisting connector (136) is welded to the bottom surface of the hoisting plug (135). A threaded rod (133) is inserted into the inward end of the hoisting plug (135).

2. The adjustable and telescopic lifting device according to claim 1, characterized in that: The threaded rod (133) is inserted into the outward end of the second hoisting square tube (131).

3. The adjustable and telescopic lifting device according to claim 2, characterized in that: The movable slide rail (138) is slidably connected to the inner wall surface of the metal slide rail (14).

4. The adjustable and telescopic lifting device according to claim 3, characterized in that: The fastening bolt (15) is threadedly connected to the inner end of the second hoisting square tube (131).

5. The adjustable and telescopic lifting device according to claim 4, characterized in that: The limiting plug (132) is bolted to the left and right ends of the hoisting square tube (12).

6. The adjustable and telescopic lifting device according to claim 5, characterized in that: There are two hoisting square tubes (12), which are distributed at the front and rear ends inside the hoisting base (11).

7. The adjustable and telescopic lifting device according to claim 6, characterized in that: The metal slide plate (134) is slidably connected to the inner wall surface of the hoisting square tube (12). There are four metal slide plates (134). Two metal slide plates (134) form a group. The two groups of metal slide plates (134) are distributed in front and behind. The two metal slide plates (134) in the same group are distributed at the left and right ends inside the hoisting square tube (12).

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