Hoisting mechanism and lifting device

Abstract

The utility model provides a hoisting mechanism which comprises a cross beam, a hoisting part is arranged in the center of the top of the cross beam, two groups of hoisting seats in sliding fit with the cross beam are arranged on the cross beam, two groups of positioning components are arranged on the cross beam, and the two groups of positioning components are respectively arranged close to two ends of the cross beam. The two groups of positioning assemblies are symmetrically arranged relative to the hoisting part, the two hoisting seats are independently matched with the two groups of positioning assemblies respectively to fix the positions of the two groups of positioning assemblies, and blocking parts are arranged at the two ends of the cross beam. According to the utility model, the distance between the two hoisting seats relative to the hoisting part can be adjusted according to the gravity center position of a hoisted heavy object, so that the stability of the heavy object in the hoisting process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a lifting mechanism and a lifting device. Background Art

[0002] Lifting equipment is used for carrying heavy objects. Existing lifting equipment generally includes a power mechanism for providing lifting power, and a lifting mechanism connected to the power mechanism. The lifting mechanism is connected to the heavy object or carries the heavy object to achieve the heavy object transportation work. The lifting mechanisms currently used include single lifting points, double lifting points, etc. The lifting point position of the double lifting point lifting mechanism is fixed, but due to the different shapes and structures of some objects and the different center of gravity positions, it cannot be adjusted according to the lifting requirements, which will cause instability when lifting heavy objects. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a lifting mechanism and a lifting device, which have a convenient adjustment function and can adapt to the lifting work of different types of heavy objects.

[0004] According to an embodiment of the utility model, a lifting mechanism includes a crossbeam, a lifting part is provided in the center of the top of the crossbeam, two groups of lifting seats slidingly matched with the crossbeam are provided on the crossbeam, two groups of positioning components are provided on the crossbeam, the two groups of positioning components are respectively arranged near the two ends of the crossbeam, the two groups of positioning components are symmetrically arranged about the lifting part, the two lifting seats independently cooperate with the two groups of positioning components to fix their positions, and blocking parts are provided at both ends of the crossbeam.

[0005] Preferably, the crossbeam is a strip-shaped straight rod structure, the hanging seat is an annular structure with a rectangular cross-section that is movably mounted on the crossbeam, the positioning assembly includes a positioning plate that is fixedly connected to the crossbeam and located on the inner side of the hanging seat, the positioning plate is provided with a positioning groove, and a positioning rod that cooperates with the positioning groove is detachably connected to the inner side of the hanging seat.

[0006] Further preferably, the positioning groove is a long strip groove and is arranged along the length direction of the beam. The side wall of the positioning groove close to the side of the beam is a sliding part of a planar structure. The side wall of the positioning groove away from the side of the beam is provided with a plurality of positioning parts with tooth-like groove structures, and the bottom of the positioning rod is provided with positioning teeth.

[0007] Further preferably, the plurality of positioning portions are evenly distributed along the length direction of the positioning groove, and at least two positioning rods are connected to the inner side of each of the hanging seats.

[0008] Further preferably, connecting screw holes are provided at both ends of the positioning rod, and a connecting through hole is provided on the hanging seat, and the positioning rod is connected to the hanging seat by bolts.

[0009] Further preferably, a movable baffle located on the side of the positioning plate away from the crossbeam is slidably connected to the inner side of the hanging seat, and the movable baffle can move closer to or farther from the positioning plate. The movable baffle is connected to the hanging seat through an elastic member.

[0010] Still further preferably, the bottom of the hanging seat is movably connected with a hanging ring.

[0011] According to an embodiment of the utility model, a lifting device is also provided, comprising the above-mentioned lifting mechanism.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Two hanging seats that slide with the crossbeam are arranged on the crossbeam, and two groups of positioning components that respectively cooperate with the two hanging seats are also arranged. The two hanging seats can adjust their positions independently, and their positions are independently fixed by the corresponding positioning components. When connecting heavy objects, the distance between the two hanging seats and the lifting part is adjusted according to the center position of the heavy object, so that the center of gravity of the heavy object can be as close to the lifting part as possible and located below the lifting part, which can effectively improve the stability of the heavy object during lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a lifting mechanism.

[0015] Figure 2 The utility model is a schematic diagram of the structure of a positioning component in a lifting mechanism.

[0016] In the above drawings: 1. crossbeam; 2. lifting part; 3. lifting seat; 301. bolt; 302. lifting ring; 4. positioning assembly; 410. positioning plate; 420. positioning groove; 421. sliding part; 422. positioning part; 430. positioning rod; 431. positioning tooth; 5. blocking part; 6. movable baffle; 7. elastic member. DETAILED DESCRIPTION

[0017] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Embodiment 1:

[0019] like Figure 1As shown, a lifting mechanism comprises a cross beam 1, a lifting part 2 is provided at the top center of the cross beam 1, a connecting hole is provided on the lifting part 2, two groups of lifting seats 3 slidably matched with the cross beam 1 are provided on the cross beam 1, two groups of positioning components 4 are provided on the cross beam 1, the two groups of positioning components 4 are respectively arranged near the two ends of the cross beam 1, the two groups of positioning components 4 are symmetrically arranged about the lifting part 2, the two lifting seats 3 are respectively and independently matched with the two groups of positioning components 4 to fix their positions, and blocking parts 5 are provided at both ends of the cross beam 1, and the blocking parts 5 can prevent the lifting seats 3 from sliding off the cross beam 1;

[0020] The two lifting seats 3 can independently adjust the distance between them and the lifting part 2. When lifting heavy objects by the lifting seats 3 on both sides, the positions of the two lifting seats 3 can be independently adjusted according to the position of the center of gravity to ensure that the center of gravity can be as close to the bottom of the lifting part 2 as possible, thereby ensuring stability during the lifting process;

[0021] like Figure 1 , Figure 2 As shown, the cross beam 1 is a strip straight rod structure, the hanging seat 3 is an annular structure movably sleeved on the cross beam 1 and having a rectangular cross section, the hanging seat 3 and the cross beam 1 are clearance matched in the width direction of the cross beam 1 and the matching clearance is zero, the blocking portion 5 is a wedge-shaped stopper fixed at both ends of the top of the cross beam 1, the positioning assembly 4 includes a positioning plate 410 fixedly connected to the cross beam 1 and located on the inner side of the hanging seat 3, the positioning plate 410 is provided with a positioning groove 420, and the inner side of the hanging seat 3 is detachably connected with a positioning rod 430 that matches the positioning groove 420;

[0022] After the position of the hanging seat 3 is adjusted by sliding, the positioning rod 430 cooperates with the positioning groove 420, and because the inner side of the hanging seat 3 is consistent with the width of the crossbeam 1, the hanging seat 3 will not be offset in the horizontal position, and under the gravity of the hoisted heavy object, the hanging seat 3 will not be vertically displaced;

[0023] In order to facilitate the adjustment of the position of the hanging seat 3, in a further embodiment, the positioning groove 420 is a long strip groove and is arranged along the length direction of the beam 1, the side wall of the positioning groove 420 close to the beam 1 is a sliding portion 421 of a planar structure, and the side wall of the positioning groove 420 away from the beam 1 is provided with a plurality of positioning portions 422 of a tooth-shaped groove structure, and the bottom of the positioning rod 430 is provided with a positioning tooth 431;

[0024] When adjusting the position of the hanging seat 3, the hanging seat 3 moves upward, so that the positioning rod 430 moves into the sliding part 421. At this time, the hanging seat 3 can slide along the length direction of the beam 1. After the adjustment is completed, the hanging seat 3 moves downward, and the positioning rod 430 enters the positioning part 422, which can limit the position of the hanging seat 3. During the adjustment process, there is no need to remove the positioning rod 430.

[0025] In order to improve the stability of the hanging seat 3, in a further embodiment, the plurality of positioning portions 422 are evenly distributed along the length direction of the positioning groove 420, and at least two positioning rods 430 are connected to the inner side of each hanging seat 3. In this embodiment, two positioning rods 430 are provided, and the spacing between the two positioning rods 430 is the same as the spacing between the two positioning portions 422;

[0026] Specifically, both ends of the positioning rod 430 are provided with connecting screw holes, and the hanging seat 3 is provided with connecting through holes, and the positioning rod 430 is connected to the hanging seat 3 by bolts 301;

[0027] In order to facilitate the positioning rod 430 to enter the positioning portion 422, in a further embodiment, the inner side of the hanging seat 3 is slidably connected with a movable baffle 6 located on the side of the positioning plate 410 away from the crossbeam 1, and the movable baffle 6 can move vertically, and the movable baffle 6 can move close to or away from the positioning plate 410. The movable baffle 6 is connected to the hanging seat 3 through an elastic member 7. In this embodiment, the elastic member 7 is a rigid spring. In the initial state, the elastic member 7 is in a compressed state, so that the movable baffle 6 is in conflict with the positioning plate 410. When adjusting the hanging seat 3, it is necessary to overcome the reaction force of the elastic member 7. After the adjustment is completed, under the action of the elastic member 7, the hanging seat 3 moves downward, so that the positioning rod 430 enters the positioning portion 422, and it is beneficial to its position stability;

[0028] The bottom of the hanging seat 3 is movably connected with a hanging ring 302 for easy connection of heavy objects.

[0029] Embodiment 2:

[0030] A lifting device comprises a power mechanism for lifting, a lifting mechanism of embodiment 1, wherein the output end of the power mechanism is connected to a connecting hole on a lifting part 2 through a lifting rope.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A lifting mechanism, characterized in that: The invention comprises a crossbeam (1), wherein a lifting portion (2) is provided at the center of the top of the crossbeam (1), wherein two groups of lifting seats (3) slidably matched with the crossbeam (1) are provided on the crossbeam (1), and two groups of positioning components (4) are provided on the crossbeam (1), wherein the two groups of positioning components (4) are respectively arranged near the two ends of the crossbeam (1), and the two groups of positioning components (4) are symmetrically arranged with respect to the lifting portion (2), and the two lifting seats (3) are respectively and independently matched with the two groups of positioning components (4) to fix their positions, and blocking portions (5) are provided at both ends of the crossbeam (1).

2. A lifting mechanism according to claim 1, characterized in that: The crossbeam (1) is a strip-shaped straight rod structure, the hanging seat (3) is an annular structure movably mounted on the crossbeam (1) and having a rectangular cross-section, the positioning assembly (4) comprises a positioning plate (410) fixedly connected to the crossbeam (1) and located on the inner side of the hanging seat (3), the positioning plate (410) is provided with a positioning groove (420), and a positioning rod (430) that cooperates with the positioning groove (420) is detachably connected to the inner side of the hanging seat (3).

3. A lifting mechanism according to claim 2, characterized in that: The positioning groove (420) is a long strip groove and is arranged along the length direction of the crossbeam (1); the side wall of the positioning groove (420) close to the crossbeam (1) is a sliding portion (421) with a planar structure; the side wall of the positioning groove (420) away from the crossbeam (1) is provided with a plurality of positioning portions (422) with tooth-shaped groove structures; and the bottom of the positioning rod (430) is provided with positioning teeth (431).

4. A lifting mechanism according to claim 3, characterized in that: The plurality of positioning portions (422) are evenly distributed along the length direction of the positioning groove (420), and at least two positioning rods (430) are connected to the inner side of each of the hanging seats (3).

5. A lifting mechanism according to claim 2, characterized in that: Both ends of the positioning rod (430) are provided with connecting screw holes, the hanging seat (3) is provided with a connecting through hole, and the positioning rod (430) is connected to the hanging seat (3) via bolts (301).

6. A lifting mechanism according to any one of claims 2 to 5, characterized in that: The inner side of the hanging seat (3) is slidably connected with a movable baffle (6) located on the side of the positioning plate (410) away from the crossbeam (1). The movable baffle (6) can move closer to or farther from the positioning plate (410). The movable baffle (6) is connected to the hanging seat (3) via an elastic member (7).

7. A lifting mechanism according to claim 6, characterized in that: The bottom of the suspension seat (3) is movably connected with a suspension ring (302).

8. A lifting device, characterized in that: It comprises a lifting mechanism as described in claim 7.

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