Hoisting locking structure of hoisting jack

Abstract

The utility model belongs to the technical field of hoisting jacks, in particular to a hoisting locking structure of a hoisting jack, which is characterized in that the bottom of a hoisting jack fixing plate is fixedly connected with a hook lock body; a hook rod is hinged to the end of the hook lock body through a torsional spring. The end of the hook lock body is hinged to an isolation limiting baffle through a torsional spring. In the penetrating process, the hook rod is pulled to rotate, so that the hook rod is in a straight shape, then the hook rod penetrates through a fixing hole or a rope to be fixed, after penetrating, the hook rod is loosened, then the hook rod is reset through the elastic force generated by the torsional spring, and then the threaded rod is inserted into the threaded hole to be clamped and fixed. And then limiting and protection are conducted through the isolation limiting baffle, the fixing effect of the hook lock body and the hook rod is improved, then goods are transported through work of the hoisting device, and the subsequent loosening and falling problems are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoisting jacks, in particular to a hoisting locking structure of a hoisting jack. Background Art

[0002] A hoisting crane, also known as a crane, is a mechanical equipment used to lift and move heavy objects. It is widely used in production and life. In the manufacturing industry, cranes are used to transfer raw materials, semi-finished products, finished products, etc. to improve production efficiency. In the construction industry, cranes are used in the construction of high-rise buildings, as well as large-scale construction projects such as bridges and tunnels.

[0003] When the goods need to be hoisted, the hoisting crane is driven to the cargo transportation site, and then the hook lock is lowered to fix the goods to be transported, and then the hoisting crane is started to hoist upward for transportation.

[0004] In the current existing technology, when a lifting crane is lifting goods, the hook lock is placed at the bottom to hook the goods. When the hook lock hooks the goods, since the rope or the fixing hook hole on the surface of the goods is relatively narrow, the hook lock needs to be bent to fix it. When bending and adjusting, it will consume a lot of time, thereby reducing the construction safety effect of the lifting crane. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one problem raised in the background technology, a hoisting locking structure for a hoisting crane is proposed.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows: a hoisting locking structure of a hoisting jack described in the utility model, a hook lock body is fixedly connected to the bottom of the hoisting jack fixing plate; a hook rod is hingedly connected to the end of the hook lock body through a torsion spring; an isolation limit baffle is hingedly connected to the end of the hook lock body through a torsion spring; a threaded hole is provided inside the hook rod and the isolation limit baffle; a threaded rod is threadedly connected to the inside of the threaded hole; a through hole is provided at the end of the threaded rod; a clamping plate is slidably connected to the inside of the through hole; a guide rod is slidably connected to the inside of the threaded rod; a guide plate is fixedly connected to the end of the guide rod; the bottom of the guide plate is hingedly connected to the limited lock rod through a torsion spring; the inner side wall of the threaded rod is fixedly connected to the limited lock plate; a ball is rotatably connected to the end of the guide rod, and the ball is attached to the inner side wall of the threaded rod; a slide groove is provided inside the threaded rod; a slide plate is slidably connected to the inside of the slide groove; a first spring is fixedly connected to the top of the slide plate, and the other end of the first spring is fixedly connected to the inner side wall of the slide plate.

[0007] Preferably, an elastic sheet is fixedly connected to the inner side wall of the hook lock body; and a protective wear-resistant plate is fixedly connected to the end of the elastic sheet.

[0008] Preferably, a plurality of friction pads are fixedly connected to the surface of the protective wear-resistant plate; and the end of the protective wear-resistant plate is semi-annular.

[0009] The beneficial effects of the utility model are as follows:

[0010] 1. The utility model discloses a lifting and locking structure for a lifting hoist, wherein a rope and a fixing plate of the lifting hoist are dropped to the bottom and dropped onto the surface of the cargo, and then a worker takes up a hook lock body and inserts it into a rope or a fixing hole on the surface of the cargo to fix the cargo, and during the insertion process, the hook rod is rotated by bending the hook rod to make the hook rod straight, and then the hook rod is fixed by passing through the fixing hole or the rope, and after passing through, the hook rod is released and reset by the elastic force generated by the torsion spring, and then a threaded rod is inserted into the inside of the threaded hole to be clamped and fixed, and then the isolation limit baffle is used to limit and protect the fixing effect of the hook lock body and the hook rod, and then the lifting hoist is operated to transport the cargo, thereby reducing the problem of subsequent loosening and falling.

[0011] 2. The utility model describes a hoisting locking structure for a hoisting crane. When the threaded rod is inserted into the threaded hole and the thread is fixed, the guide plate is pushed to drive the guide rod to slide into the inside of the threaded rod, and then the guide rod squeezes the end of the clamping plate, so that the clamping plate is squeezed to open to both sides and clamped on the outer wall of the isolation limit baffle, so as to improve the fixing effect of the hoisting crane fixing plate and the isolation limit baffle on the rope or the fixing hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a stereogram in the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the threaded rod in the utility model;

[0016] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0017] Legend:

[0018] 1. Lifting crane fixing plate; 2. Hook rod; 21. Hook lock body; 22. Isolation limit baffle; 23. Threaded hole; 24. Threaded rod; 31. Guide rod; 32. Guide plate; 33. Ball; 34. Snap-in plate; 41. Slide groove; 42. Slide plate; 43. First spring; 51. Limit lock rod; 52. Limit lock plate; 61. Protective wear-resistant plate; 62. Shrapnel; 63. Friction pad. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Specific examples are given below.

[0021] like Figures 1 to 4As shown, a lifting locking structure of a lifting jack described in an embodiment of the utility model, a hook lock body 21 is fixedly connected to the bottom of the lifting jack fixing plate 1; the end of the hook lock body 21 is hinged with a hook rod 2 through a torsion spring; the end of the hook lock body 21 is hinged with an isolation limit baffle 22 through a torsion spring; threaded holes 23 are provided inside the hook rod 2 and the isolation limit baffle 22; the threaded hole 23 is threadedly connected with a threaded rod 24 inside; a through hole is provided at the end of the threaded rod 24; a clamping plate 34 is slidably connected inside the through hole; a guide rod 31 is slidably connected inside the threaded rod 24; the end of the guide rod 31 is fixed with a guide plate 32; the bottom of the guide plate 32 is hinged with a limit lock rod 51 through a torsion spring; The inner wall of the threaded rod 24 is fixedly connected to the limited locking plate 52; the end of the guide rod 31 is rotatably connected to the ball 33, and the ball 33 fits on the inner wall of the threaded rod 24; a slide groove 41 is provided inside the threaded rod 24; a slide plate 42 is slidably connected inside the slide groove 41; a first spring 43 is fixedly connected to the top of the slide plate 42, and the other end of the first spring 43 is fixedly connected to the inner wall of the slide plate 42; during operation, when the lifting rigger is lifting the cargo, the rope is dropped to the bottom and the lifting rig fixing plate 1 falls to the surface of the cargo, and then the staff picks up the hook lock body 21 and passes it through the rope or fixing hole on the surface of the cargo to fix it. During the passing process, the hook rod 2 is rotated by bending it so that the hook The rod 2 is straight and then passes through the fixing hole or rope for fixing. After passing through, the hook rod 2 is loosened, and then the hook rod 2 is reset by the elastic force generated by the torsion spring. Then, the threaded rod 24 is inserted into the inside of the threaded hole 23 for clamping and fixing. Then, the isolation limit baffle 22 is used for limiting and protection to improve the fixing effect of the hook lock body 21 and the hook rod 2. Then, the lifting and hoisting device is used to transport the goods to reduce the problem of loosening and falling later. When the threaded rod 24 is inserted into the inside of the threaded hole 23 and the thread is fixed, the guide plate 32 is pushed to drive the guide rod 31 to slide into the inside of the threaded rod 24, and then the end of the clamping plate 34 is squeezed by the guide rod 31, so that the clamping plate 34 is squeezed to stretch to both sides. When the guide plate 32 slides toward the side, the limit lock rod 51 is pressed to shrink and rotate, and then when the guide plate 32 drives the guide rod 31 to be inserted to the bottom, the limit lock rod 51 is released, and then the limit lock rod 51 is opened to both sides by the elastic force generated by the torsion spring, and then is clamped to the bottom of the limit lock plate 52 for fixing, thereby reducing the problem of subsequent slippage of the guide plate 32; by installing a ball 33 at the end of the guide rod 31, when the guide rod 31 slides, the ball 33 is driven to roll on the inner side wall of the threaded rod 24 to squeeze the surface of the clamping plate 34, thereby reducing the friction between each other;When the cargo needs to be disassembled, the guide plate 32 is pulled upward to slide, so that the guide plate 32 pulls the guide rod 31 and the ball 33 out of the inside of the threaded rod 24, and then the clamping plate 34 slides toward the inside of the threaded rod 24 under the pulling force generated by the slide plate 42. Then the staff twists the threaded rod 24 to slide out from the inside of the threaded hole 23, and then takes the rope from the inside of the hook lock body 21 to disassemble the cargo. ;

[0022] Further, such as Figure 2-Figure 4 As shown, the inner wall of the hook lock body 21 is fixedly connected with a spring piece 62; the end of the spring piece 62 is fixedly connected with a protective wear-resistant plate 61; when working, the protective wear-resistant plate 61 and the spring piece 62 are installed on the inner wall of the hook lock body 21 to protect the rope and the fixing hole, thereby reducing the problem of breakage caused by the large friction between the rope and the hook lock body 21 during long-term lifting.

[0023] Further, such as Figure 1-Figure 2 As shown, the surface of the protective wear-resistant plate 61 is fixedly connected with a friction pad 63, and there are several friction pads 63; the end of the protective wear-resistant plate 61 is semi-annular; when working, the friction pad 63 is installed on the surface of the protective wear-resistant plate 61 to increase the friction force and reduce the problem of subsequent rope slippage.

[0024] Working principle: During operation, when the lifting rigger is lifting the cargo, the rope and the lifting rig fixing plate 1 are dropped to the surface of the cargo by dropping it to the bottom, and then the staff picks up the hook lock body 21 and inserts it into the rope or fixing hole on the cargo surface to fix it. During the insertion process, the hook rod 2 is rotated by bending it so that the hook rod 2 is straight, and then it is fixed by passing through the fixing hole or rope. After passing through, the hook rod 2 is released, and then the hook rod 2 is reset by the elastic force generated by the torsion spring, and then the threaded rod 24 is inserted into the inside of the threaded hole 23 for clamping and fixing, and then the isolation limit baffle 22 is used to limit and protect it. The hook lock body 21 and the hook rod 2 are protected to improve the fixing effect of the hook lock body 21 and the hook rod 2, and then the lifting and hoisting device is used to transport the goods, reducing the problem of loosening and falling in the future; when the threaded rod 24 is inserted into the threaded hole 23 and the thread is fixed, the guide plate 32 is pushed to drive the guide rod 31 to slide into the inside of the threaded rod 24, and then the guide rod 31 squeezes the end of the clamping plate 34 so that the clamping plate 34 is squeezed and opened to both sides to clamp on the outer wall of the isolation limit baffle 22, so as to improve the fixing effect of the lifting and hoisting device fixing plate 1 and the isolation limit baffle 22 on the rope or the fixing hole; when the guide plate 32 slides to the side end, the limit lock rod 51 is pressed to The guide plate 32 is retracted and rotated, and then when the guide plate 32 drives the guide rod 31 to be inserted to the bottom, the limit lock rod 51 is loosened, and then the limit lock rod 51 is opened to both sides by the elastic force generated by the torsion spring, and then clamped at the bottom of the limit lock plate 52 for fixing, thereby reducing the problem of the guide plate 32 slipping off in the future; by installing the ball 33 at the end of the guide rod 31, when the guide rod 31 slides, the ball 33 is driven to roll on the inner side wall of the threaded rod 24 to squeeze the surface of the clamping plate 34, thereby reducing the friction between them; when the goods need to be disassembled, the guide plate 32 is pulled to slide upward, so that the guide plate 32 pulls the guide rod 31 and the ball 33 off the threaded rod 24 The hook lock body 21 is provided with a protective wear-resistant plate 61 and a spring 62, which are installed on the inner wall of the hook lock body 21 to protect the rope and the fixing hole, thereby reducing the problem of breakage caused by the large friction between the rope and the hook lock body 21 during long-term lifting. The friction pad 63 is installed on the surface of the protective wear-resistant plate 61 to increase the friction and reduce the problem of subsequent rope slippage.

[0025] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lifting and locking structure for a lifting jack, comprising a lifting jack fixing plate (1); characterized in that: A hook lock body (21) is fixedly connected to the bottom of the lifting jack fixing plate (1); a hook rod (2) is hingedly connected to the end of the hook lock body (21) through a torsion spring; an isolation limit baffle (22) is hingedly connected to the end of the hook lock body (21) through a torsion spring; a threaded hole (23) is provided inside the hook rod (2) and the isolation limit baffle (22); a threaded rod (24) is threadedly connected to the inside of the threaded hole (23); a through hole is provided at the end of the threaded rod (24); a clamping plate (34) is slidably connected to the inside of the through hole; a guide rod (31) is slidably connected to the inside of the threaded rod (24); the guide rod ( The end of the guide plate (31) is fixedly connected to a guide plate (32); the bottom of the guide plate (32) is hinged to a limit lock rod (51) through a torsion spring; the inner side wall of the threaded rod (24) is fixedly connected to the limit lock plate (52); the end of the guide rod (31) is rotatably connected to a ball (33), and the ball (33) fits on the inner side wall of the threaded rod (24); a sliding groove (41) is provided inside the threaded rod (24); a slide plate (42) is slidably connected inside the sliding groove (41); a first spring (43) is fixedly connected to the top of the slide plate (42), and the other end of the first spring (43) is fixedly connected to the inner side wall of the slide plate (42).

2. A hoisting locking structure for a hoisting jack according to claim 1, characterized in that: An elastic sheet (62) is fixedly connected to the inner side wall of the hook lock body (21); and a protective wear-resistant plate (61) is fixedly connected to the end of the elastic sheet (62).

3. A hoisting locking structure for a hoisting jack according to claim 2, characterized in that: A plurality of friction pads (63) are fixedly connected to the surface of the protective wear-resistant plate (61); the end of the protective wear-resistant plate (61) is semi-annular.

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