Lifting device for steel beam

Abstract

The utility model relates to the technical field of steel beam hoisting, in particular to a hoisting device for a steel beam. The device comprises a lifting frame and steel beam connecting mechanisms symmetrically arranged on the lifting frame, and each steel beam connecting mechanism comprises a sleeve used for being arranged on a steel beam in a sleeving mode, an internal thread cylinder connected to the sleeve wall of the sleeve in a sliding mode, a locking rod arranged on the internal thread cylinder in a penetrating mode through threads and a locking assembly used for fixing the internal thread cylinder to the sleeve. A sliding way matched with the locking rod in diameter is formed in the sleeve wall of the sleeve. According to the device, the steel beam can be kept in a horizontal state in the hoisting process and is prevented from moving in the hoisting process, so that the hoisting difficulty of the steel beam is reduced, and the construction efficiency of the steel beam is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel beam hoisting technical field, concretely is a kind of for the hoisting device of steel beam. BACKGROUND

[0002] Steel beam is divided into rectangular steel beam and special-shaped steel beam. Special-shaped beam structure is as its name implies, that is, the shape of beam section is special-shaped, not the rectangular of ordinary frame structure. Beam is divided into rectangular and special-shaped according to section, and special-shaped is flower basket beam and pick-up beam etc.. Generally, non-rectangular can be attributed to special-shaped beam, including flower basket beam, cross-shaped beam, T-shaped beam, L-shaped beam. In order to be applicable to special load conditions in different projects, various special-shaped shapes can be designed according to different use requirements, and these steel beams can provide greater bending stiffness and carrying capacity.

[0003] In the process of steel beam hoisting construction, hoisting cable is usually used for binding and hoisting. In the traditional hoisting construction mode, hoisting cable and steel beam are connected by friction force generated under the action of gravity, and there is construction safety hazard of hoisting cable slipping in construction. Therefore, the lifting point of steel beam cannot be accurately positioned in hoisting, and the steel beam cannot be kept in horizontal state in the hoisting process, which increases the construction difficulty of hoisting and positioning, and it is difficult to realize high-precision hoisting construction of steel beam, greatly reducing the construction efficiency of steel beam hoisting and installation. UTILITY MODEL CONTENT

[0004] In order to solve the problems of the prior art, the utility model provides a hoisting device for steel beam, which can keep the steel beam in horizontal state during hoisting, prevent the steel beam from moving during hoisting, thereby reduce the hoisting difficulty of steel beam, and thereby improve the construction efficiency of steel beam.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a hoisting device for steel beam, comprising a hoisting frame, a steel beam connecting mechanism symmetrically arranged on the hoisting frame, the steel beam connecting mechanism comprising a sleeve for sleeving on the steel beam, an internal thread cylinder slidingly connected to the sleeve cylinder wall, a locking rod threaded on the internal thread cylinder, a locking assembly for fixing the internal thread cylinder on the sleeve, and a slide matched with the diameter of the locking rod is formed in the cylinder wall of the sleeve.

[0006] The above structure design can keep the steel beam in horizontal state during hoisting, prevent the steel beam from moving during hoisting, thereby reduce the hoisting difficulty of steel beam, and thereby improve the construction efficiency of steel beam.

[0007] Preferably, the internal thread cylinder is fixedly connected to the sliding block, the sliding block is slidingly connected to the sliding groove, and the sliding groove is fixedly connected to the outer side wall of the sleeve.

[0008] The above structure design facilitates the sliding of the internal thread cylinder on the sleeve.

[0009] Preferably, the locking assembly includes a locking plate fixedly connected to the internal threaded cylinder, a positioning rod passing through the locking plate, a pull rod fixedly connected to the positioning rod, a return spring sleeved on the pull rod, and a limiting cylinder sleeved on the return spring and the pull rod. The slide groove has multiple locking holes that match the positioning rod. The diameter of the positioning rod is larger than the diameter of the pull rod. The locking plate has through holes for accommodating the pull rod and the return spring.

[0010] With the above structural design, pulling the pull rod will pull the positioning rod out of the lock hole, thereby unlocking the internal threaded cylinder. When the pull rod is released, the positioning rod will retract into the lock hole under the action of the return spring, thus fixing the internal threaded cylinder.

[0011] Preferably, a stop bar is fixedly connected to the pull rod, a limiting slide rail matching the stop bar is opened on the wall of the limiting cylinder, and a stop block is fixedly connected to the upper surface of the limiting cylinder.

[0012] With the above structural design, after the stop bar is pulled out from the limiting slide, the operator can rotate the lever, and the stop bar will stay on the upper surface of the limiting cylinder. Therefore, after the operator releases the lever, the lever will not automatically reset, making it easier for the operator to adjust the position of the locking lever.

[0013] Preferably, the lower end of the locking rod is hinged to a pressure plate.

[0014] The above structural design facilitates contact between the pressure plate and the steel beam.

[0015] Preferably, the sleeve is connected to the hanger via a first lifting rope, and a second lifting rope is fixedly connected to the hanger, with a lifting ring fixedly connected to the upper end of the second lifting rope.

[0016] The above structural design facilitates the lifting of this device.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This device can keep the steel beam horizontal during the lifting process, prevent the steel beam from moving during the hoisting process, thereby reducing the difficulty of hoisting the steel beam and improving the construction efficiency of the steel beam. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Enlarged structural diagram at point B;

[0021] Figure 3 This utility model Figure 2 A schematic diagram of the structure from the front view;

[0022] Figure 4 The utility model discloses Figure 2 Structure schematic diagram of A-A section of view; Specific implementation

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The utility model provides a kind of technical scheme: a kind of lifting device for steel beam, including lifting frame 1, symmetrically arranged steel beam connecting mechanism 2 on lifting frame 1, the steel beam connecting mechanism 2 includes sleeve 21 for being set on steel beam, inner thread cylinder 22 slidingly connected on the sleeve 21 barrel wall, locking rod 23 is threaded and arranged on the inner thread cylinder 22, for the locking assembly of inner thread cylinder 22 fixed on sleeve 21, the barrel wall of sleeve 21 is opened with the slide 24 of the diameter matching of locking rod 23.

[0024] To better fix steel beam, sleeve 21 is slidingly connected with multiple inner thread cylinders 22.As shown in Figure 2 Sleeve 21 is square sleeve, and the barrel wall of the upper side and the right side of sleeve 21 is slidingly connected with two inner thread cylinders 22. Inner thread cylinder 22 is threaded and arranged with locking rod 23, and locking assembly is arranged on inner thread cylinder 22.

[0025] The inner thread cylinder 22 is fixedly connected on sliding block 31, the sliding block 31 is slidingly connected on sliding groove 32, and the sliding groove 32 is fixedly connected on the outer side wall of sleeve 21.

[0026] The locking assembly includes locking plate 41 fixedly connected on inner thread cylinder 22, positioning rod 42 penetrating locking plate 41, pull rod 43 fixedly connected with positioning rod 42, reset spring 44 sleeved on pull rod 43, limiting cylinder 45 sleeved on reset spring 44 and pull rod 43, a plurality of lock holes 46 matched with positioning rod 42 are formed in the sliding groove 32, the diameter of the positioning rod 42 is greater than the diameter of the pull rod 43, and a through hole for accommodating the pull rod 43 and the reset spring 44 is formed in the locking plate 41.

[0027] The pull rod 43 is fixedly connected with the stop rod 51, the limiting slide 52 matched with the stop rod 51 is formed in the barrel wall of the limiting cylinder 45, and the upper surface of the limiting cylinder 45 is fixedly connected with the stop block 53.

[0028] The lower end of the locking rod 23 is hinged to the pressing plate 6.

[0029] The sleeve 21 is connected on the lifting frame 1 by the first lifting rope 71, the second lifting rope 72 is fixedly connected on the lifting frame 1, and the upper end of the second lifting rope 72 is fixedly connected with the lifting ring 73.

[0030] Working principle: first, the staff will sleeve 21 set on the steel beam, then the staff pull the pull rod 43, the stop bar 51 from the limit sliding 52 pull out, then the staff rotate the pull rod 43, until the pull rod 43 and the stop block 53 contact, the stop bar 51 will stay in the upper surface of the limit cylinder 45, then the staff move the internal thread cylinder 22, the locking rod 23 is moved to the appropriate position, then the staff reverse rotation pull rod 43, under the action of the reset spring 44, the pull rod 43 reset, the positioning rod 42 back to the lock hole, the internal thread cylinder 22 is fixedly connected on the groove wall of the sliding groove 32, the internal thread cylinder 22 will not move, then the staff rotate the locking rod 23, until the pressing plate 6 presses the steel beam, then the staff will the lifting hook of the crane connected to the lifting ring 73, lifting the steel beam.

[0031] The structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not have technical substantive significance, and any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the specification are only for the convenience of clear description, and are not used to limit the scope of the utility model, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model.

[0032] The above describes the utility model with reference to the preferred embodiments, but the protection scope of the utility model is not limited thereto, and all technical solutions falling within the scope of the claims are within the protection scope of the utility model. Various improvements can be made to it and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way.

Claims

1. A lifting device for a steel beam, comprising a lifting frame (1) and a steel beam connecting mechanism (2) symmetrically arranged on the lifting frame (1), characterized in that: The steel beam connecting mechanism (2) comprises a sleeve (21) sleeved on the steel beam, an inner threaded cylinder (22) slidingly connected to the cylinder wall of the sleeve (21), a locking rod (23) threaded through the inner threaded cylinder (22), a locking assembly for fixing the inner threaded cylinder (22) on the sleeve (21), and a slide (24) with a diameter matched with the locking rod (23) is formed in the cylinder wall of the sleeve (21).

2. A lifting device for a steel beam according to claim 1, characterised in that: The inner threaded cylinder (22) is fixedly connected to a sliding block (31), the sliding block (31) is slidingly connected to a sliding groove (32), and the sliding groove (32) is fixedly connected to the outer side wall of the sleeve (21).

3. A lifting device for a steel beam according to claim 2, characterised in that: The locking assembly comprises a locking plate (41) fixedly connected to the inner threaded cylinder (22), a positioning rod (42) penetrating through the locking plate (41), a pull rod (43) fixedly connected to the positioning rod (42), a reset spring (44) sleeved on the pull rod (43), a limiting cylinder (45) sleeved on the reset spring (44) and the pull rod (43), a plurality of lock holes (46) matched with the positioning rod (42) are formed in the sliding groove (32), the diameter of the positioning rod (42) is greater than that of the pull rod (43), and a through hole for accommodating the pull rod (43) and the reset spring (44) is formed in the locking plate (41).

4. A lifting device for a steel beam according to claim 3, characterised in that: The pull rod (43) is fixedly connected to a stop rod (51), a limiting slide (52) matched with the stop rod (51) is formed in the cylinder wall of the limiting cylinder (45), and a stop block (53) is fixedly connected to the upper surface of the limiting cylinder (45).

5. A lifting device for a steel beam according to any one of claims 1 to 4, characterised in that: The lower end of the locking rod (23) is hingedly connected to a pressing plate (6).

6. A lifting device for a steel beam according to any one of claims 1 to 4, characterised in that: The sleeve (21) is connected to a hanging frame (1) through a first hanging rope (71), a second hanging rope (72) is fixedly connected to the hanging frame (1), and a hanging ring (73) is fixedly connected to the upper end of the second hanging rope (72).

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