Oil drum lifting clamp

Abstract

The utility model discloses an oil drum lifting clamp, which belongs to the technical field of oil drum lifting clamps and particularly comprises a connecting sleeve and a plurality of clamp arms, the clamp arms are equidistantly distributed around the peripheral direction of the connecting sleeve, the middle of each clamp arm is rotatably connected with the outer wall of the connecting sleeve through a rotating shaft matched with a nut, and a hook claw is integrally formed at the bottom end of each clamp arm. A hoisting assembly is installed in the middle of the connecting sleeve in a sliding mode, and the hoisting assembly is connected with each connecting ring through a manganese steel chain. A three-jaw design is adopted, the lever principle is utilized, the structural design of the clamp arms is matched with the design of the hoisting arm and the manganese steel chain, so that the jaws at the bottoms of the three-jaw clamps are synchronously expanded and folded, an oil drum can still keep a balance posture in the hoisting and carrying process, the stability is higher, and the oil drum is not prone to falling off. The device has a good protection effect on the structure of the oil drum, can adapt to different types of oil drums, and is high in applicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of oil drum lifting tongs, and particularly relates to an oil drum lifting tong. BACKGROUND

[0002] In the hoisting work of the oil drum, the lifting tong is a kind of common oil drum hoisting clamp, and the common lifting tong at present mainly adopts a single-claw lifting cable clamp. In the using process of the single-claw lifting cable clamp, the clamping fixed jaw exerts force on the inner side of the oil drum under the action of the lifting gravity, and the clamping is realized in cooperation with the hook. When the oil drum is lifted by the clamping fixed jaw, the whole oil drum is unbalanced and is lifted at an inclined angle, and the jaw of the clamping easily causes damage to the barrel edge structure of the oil drum and generates deformation, and the stability of the oil drum during the hoisting and moving process is poor.

[0003] Therefore, the utility model provides a lever type three-claw oil drum lifting tong. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing an oil drum lifting tong to solve the above problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An oil drum lifting tong comprises a connecting sleeve and a plurality of tong arms, the plurality of tong arms are distributed at equal distances in the circumferential direction of the connecting sleeve, the middle part of the tong arm is rotationally connected with the outer wall of the connecting sleeve through a rotating shaft cooperating with a nut, the bottom end of the tong arm is integrally formed with a hook claw, the inner side of the hook claw is integrally formed with a hoop, the upper end of the tong arm is provided with a hanging ring, and the hanging ring is provided with a connecting ring.

[0007] The middle part of the connecting sleeve is slidably provided with a hoisting assembly, and the hoisting assembly and each connecting ring are connected through a manganese steel chain.

[0008] Further, the tong arm has three, the three tong arms are designed at an inclined angle on the outside of the connecting sleeve, the middle part of each tong arm is provided with a plurality of adjusting holes matched with the rotating shaft, and the rotating shaft is fixedly welded with the connecting sleeve.

[0009] Further, the hoop adopts any one of an arc-shaped steel bar or a steel bar, and the hoop is higher than the inner side surface of the hook claw.

[0010] Further, the inner side of the bottom end of the hook claw is further provided with a pad.

[0011] Further, the hoisting assembly comprises a sliding sleeve and a lifting arm, the sliding sleeve is slidably inserted into the inside of the connecting sleeve, the inner wall of the sliding sleeve and the outer part of the bottom end of the lifting arm are both provided with matching threads, and the sliding sleeve and the lifting arm are screwedly and matchingly installed through the threads.

[0012] Further, the middle section of the hoisting arm is provided with three long slot openings along the circumferential direction of the hoisting arm along the length direction, so that the middle section of the hoisting arm forms three long slot wall structures, and each slot wall is provided with a plurality of connecting holes for fixing the manganese steel chain buckle from top to bottom.

[0013] Further, the manganese steel lock chain is connected to the connecting ring and the manganese steel chain buckle at both ends.

[0014] Further, the whole of the clamp arm is integrally formed by strip-shaped manganese steel with a thickness of 10-15 mm and a width of 20 mm, and the three clamp arms are arranged in a side-standing manner at the side edges of the connecting sleeve.

[0015] Beneficial effects:

[0016] The utility model discloses a three-claw design, lever principle, cooperation clamp arm structure design and the design cooperation of manganese steel lock chain, so that the clamp of three-claw clamp bottom realizes synchronous expansion and folding, in the use, three claw claws are equidistantly grabbed at the rim of the oil drum, so that the oil drum can still keep the balanced posture in the hoisting and carrying process, and three-claw clamping fixing is compared with traditional single claw or double claw hoisting clamping, and the stability is higher, and the rim of the oil drum is stressed more evenly, and the oil drum itself structure has good protection effect, secondly, by means of the design of clamp arm and hoisting arm, the hoisting clamp can adjust the size of the clamp according to the demand, so as to adapt to different types of oil drum, and the applicability is strong. DRAWINGS

[0017] Figure 1 It is a kind of oil drum hoisting clamp structure schematic of the utility model Figure 1 ;

[0018] Figure 2 It is a kind of oil drum hoisting clamp structure schematic of the utility model Figure 2 .

[0019] In the drawing: 1, clamp arm;2, connecting sleeve;3, sliding sleeve;4, hoisting arm;5, slot opening;6, connecting hole;7, hanging ring;8, hook claw;9, hoop;10, rotating shaft;11, nut;12, adjusting hole;13, cushion block;14, connecting ring;15, manganese steel lock chain;16, manganese steel chain buckle;17, screw thread. Specific implementation

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the present application will be briefly introduced below together with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the drawings is only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application.

[0021] Embodiment

[0022] For the oil drum lifting tongs appeared on the market at present, especially the single claw sling tongs in the actual use process, the whole oil drum is in an unbalanced state during the lifting process, the whole oil drum is inclined, the jaw of the tong is easy to cause damage to the barrel edge structure of the oil drum and produce deformation, and the stability of the oil drum during the lifting and moving process is poor, and the safety has certain hidden dangers, therefore, a lever type three-claw oil drum lifting tong is proposed, and the specific scheme is shown as follows:

[0023] As shown in Figures 1-2 , the present embodiment provides an oil drum lifting tong, which comprises a connecting sleeve 2 and a plurality of tong arms 1, the plurality of tong arms 1 are distributed at equal distances in the circumferential direction of the connecting sleeve 2, and the middle part of the tong arm 1 is rotationally connected with the outer wall of the connecting sleeve 2 through a rotating shaft 10 cooperating with a nut 11, wherein the rotating shaft 10 and the connecting sleeve 2 are fixedly welded, the bottom end of the tong arm 1 is integrally formed with a hook claw 8, the inner side of the hook claw 8 is integrally formed with a hoop 9, the upper end of the tong arm 1 is provided with a hanging ring 7, and the hanging ring 7 is provided with a connecting ring 14; wherein the tong arm 1 has three, and the three tong arms 1 are designed at an inclined angle outside the connecting sleeve 2, which can effectively avoid the movement obstacle of the three tong arms 1 during synchronous rotation around the rotating shaft 10.

[0024] In order to be able to implement synchronous operation on the three tong arms 1, so that the three tong claws can be smoothly and synchronously opened and closed, a lifting assembly is slidingly installed in the middle part of the connecting sleeve 2, and the lifting assembly and each connecting ring 14 are connected by a manganese steel chain 15, wherein the lifting assembly comprises a sliding sleeve 3 and a lifting arm 4, the sliding sleeve 3 is slidingly inserted into the inside of the connecting sleeve 2, and the inner wall of the sliding sleeve 3 and the outer part of the bottom end of the lifting arm 4 are both provided with threads 17 that cooperate with each other, and the sliding sleeve 3 and the lifting arm 4 are screwedly and cooperatively installed through the threads 17.

[0025] In order to be able to adjust the spacing between the three tong claws, so that the device can adapt to oil drums of different sizes, a plurality of adjustment holes 12 cooperating with the rotating shaft 10 are formed in the middle part of each tong arm 1.

[0026] The hoop 9 adopts any one of the arc-shaped steel bar or the steel strip, and the hoop 9 is higher than the inner side surface of the hook claw 8, the arc-shaped design of the hoop 9 can improve the contact area of the hoop 9 and the barrel edge of the oil drum, expand the stress surface of the oil drum, and the design of the hoop 9 higher than the inner side surface of the hook claw 8 can effectively match the oil drum upper edge outward structure when the hook claw 8 is closed, so as to effectively grasp the oil drum.

[0027] In order to prevent the hook claw 8 from damaging the barrel wall of the oil drum during the grasping process, the gasket 13 is fixed on the inner side of the bottom end of the hook claw 8.

[0028] In order to cooperate with the design of the clamp arm 1, so that the whole lifting clamp can adapt to different models of oil drum lifting and fixing, the middle section of the lifting arm 4 is provided with three long slot openings 5 along the length direction of the lifting arm 4, so that the middle section of the lifting arm 4 forms three long slot wall structures, and a plurality of connecting holes 6 for fixing the manganese steel chain buckle 16 are arranged on each slot wall from top to bottom, wherein the manganese steel chain 15 is connected to the connecting ring 14 and the manganese steel chain buckle 16 at both ends.

[0029] In order to improve the deformation resistance of the clamp arm 1, the clamp arm 1 is integrally formed by the strip-shaped manganese steel with a thickness of 10-15mm and a width of 20mm, and the three clamp arms 1 are vertically arranged on the side of the connecting sleeve 2.

[0030] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An oil drum hoist tong characterised in that, The utility model provides a hooking and lifting device, which comprises a connecting sleeve (2) and a plurality of clamping arms (1), the plurality of clamping arms (1) are distributed equidistantly around the circumference of the connecting sleeve (2), the middle part of the clamping arm (1) is rotatably connected to the outer wall of the connecting sleeve (2) through a rotating shaft (10) and a nut (11), the bottom end of the clamping arm (1) is integrally formed with a hook (8), the inner side of the hook (8) is integrally formed with a hoop (9), the upper end of the clamping arm (1) is provided with a hanging ring (7), and the hanging ring (7) is provided with a connecting ring (14). The middle part of the connecting sleeve (2) is slidably provided with a lifting assembly, and the lifting assembly and each connecting ring (14) are connected through a manganese chain (15).

2. A barrel hoisting tong according to claim 1, wherein, The clamping arm (1) has three clamping arms (1), the three clamping arms (1) are designed at an inclined angle on the outer side of the connecting sleeve (2), the middle part of each clamping arm (1) is provided with a plurality of adjusting holes (12) matched with the rotating shaft (10), and the rotating shaft (10) and the connecting sleeve (2) are welded and fixed.

3. The oil drum hoisting tongs according to claim 1, wherein, The hoop (9) is made of any one of an arc-shaped steel bar or a steel strip, and the hoop (9) is higher than the inner side of the hook (8).

4. The oil drum hoisting tongs according to claim 1, wherein, The inner side of the bottom end of the hook (8) is further provided with a cushion block (13).

5. The oil drum hoisting tongs according to claim 1, wherein, The lifting assembly comprises a sliding sleeve (3) and a lifting arm (4), the sliding sleeve (3) is slidably inserted into the connecting sleeve (2), the inner wall of the sliding sleeve (3) and the outer part of the bottom end of the lifting arm (4) are provided with matching threads (17), and the sliding sleeve (3) and the lifting arm (4) are screw-connected and installed through the threads (17).

6. A barrel lifting tongs according to claim 5, wherein, The middle part of the lifting arm (4) is provided with three long slot openings (5) along the length direction of the lifting arm (4) around the circumference, so that the middle part of the lifting arm (4) forms three long slot wall structures, and each slot wall is provided with a plurality of connecting holes (6) for fixing manganese chain buckles (16) from top to bottom.

7. The oil drum hoisting tongs according to claim 1, wherein, The manganese chain (15) is connected to the connecting ring (14) and the manganese chain buckle (16) at both ends.

8. The oil drum hoisting tongs according to claim 2, wherein, The clamping arm (1) is integrally formed by using a strip-shaped manganese steel with a thickness of 10-15 mm and a width of 20 mm, and the three clamping arms (1) are arranged in a side-standing manner on the side of the connecting sleeve (2).

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