Hoisting clamp

Abstract

The utility model relates to a hoisting clamp. The utility model relates to a hoisting clamp, which comprises a folding component, a lifting component and a lifting component, a supporting rod and at least one clamping assembly; the clamping assembly comprises a sliding plate, a first clamping jaw and a second clamping jaw. The sliding plate is slidably arranged in the supporting rod; the first clamping jaw is fixedly connected to the sliding plate; the second clamping jaw is slidably connected to the supporting rod. The clamping assembly further comprises a gear, the first clamping jaw or the sliding plate is provided with a first rack, the second clamping jaw is provided with a second rack, and the first rack and the second rack are arranged on the two sides of the gear respectively and connected with the gear in an engaged mode so that the gear can rotate to drive the first clamping jaw and the second clamping jaw to move in the opposite directions. According to the hoisting clamp, the two sides of a steel frame structure are clamped at the same time through the first clamping jaw connected with the rotating rod and the second clamping jaw in linkage with the first clamping jaw, meanwhile, the larger the mass of the steel frame is, the larger the clamping force of the two sets of clamping jaws on the steel frame is, and therefore the stability of the hoisting clamp is improved.

Description

Technical Field

[0001] This utility model relates to the field of lifting clamps, and in particular to a lifting clamp. Background Technology

[0002] Lifting jigs are tools specifically designed for moving and securing large equipment, components, and parts. Using lifting jigs can significantly reduce manual labor, drastically shorten working time, and thus improve production efficiency. Lifting jigs can securely fix equipment or components to be moved in the air, preventing safety accidents caused by vibration, tilting, etc. During the use of lifting jigs, damage to products can be minimized, ensuring the products remain intact during transportation. Lifting jigs can help quickly and accurately position parts that need to be assembled, facilitating equipment assembly. Using lifting jigs can reduce the labor intensity of workers.

[0003] The components to be clamped have various structural types. Existing lifting clamps are not convenient for clamping steel frame structures. At the same time, after long-term use, the clamping parts of the lifting clamps may loosen. When clamping heavy components, the stability is low, and there may even be loosening and falling, which cannot guarantee the safety of the lifting process. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a lifting clamp, in which a first clamp connected by a rotating rod and a second clamp linked thereto clamp from both sides of a steel frame structure simultaneously. Furthermore, the greater the mass of the steel frame, the greater the clamping force of the two sets of clamps, thereby improving the stability of the lifting clamp.

[0005] A lifting clamp, comprising:

[0006] The folding assembly has at least one rotating rod;

[0007] Support rod, the rotating rod being slidably connected to the support rod;

[0008] At least one clamping assembly is movably mounted on the support rod; the clamping assembly includes a sliding plate rotatably connected to the rotating rod, a first gripper, and a second gripper; the sliding plate is slidably disposed inside the support rod; the first gripper is fixedly connected to the sliding plate and is displaced by the sliding plate; the second gripper is slidably connected to the support rod.

[0009] The clamping assembly further includes a gear rotatably connected to the support rod. The first gripper or the slide plate is provided with a first rack, and the second gripper is provided with a second rack. The first rack and the second rack are respectively provided on both sides of the gear and mesh with the gear so that the gear rotates and drives the first gripper and the second gripper to move in opposite directions.

[0010] Preferably, the folding assembly has two rotating rods, which are rotatably connected.

[0011] The clamping assembly consists of two sets, symmetrically arranged on the support rod;

[0012] The rotating rod is rotatably connected to the slide plate near the middle of the support rod, and the first gripper is fixed to the slide plate near the end of the support rod.

[0013] Furthermore, the rotating rod is provided with a first rotating part and a second rotating part, the first rotating part and the second rotating part are extended and connected and form a certain angle; the two rotating rods are symmetrically rotated and connected through the bend.

[0014] Furthermore, the clamping assembly also includes two side plates fixedly connected to the first gripper and the second gripper at one end below the support rod, and a clamping plate movably connected to the side plates.

[0015] Furthermore, one end of the clamp is rotatably connected to one of the side plates, and the other end is detachably connected to the other side plate.

[0016] Furthermore, the clamping assembly also includes a first anti-slip pad fixed on the opposite side of the first and second grippers, and a second anti-slip pad fixed on the end face of the clamping plate facing the support rod.

[0017] Furthermore, the outer end face of the support rod is provided with a scale, and the first gripper and the second gripper are provided with pointers, the pointers being located on the same plane as the first anti-slip pad.

[0018] Furthermore, the support rod has a groove along its length, and the end of the rotating rod is provided with a connecting shaft that is slidably connected to the groove.

[0019] Furthermore, the folding assembly also includes a folding rod rotatably connected to the rotating rod, and the two sets of folding rods are rotatably connected to each other.

[0020] Furthermore, the lifting clamp also includes a power unit, a telescopic rod, and a connecting plate located at the connection point of the two sets of folding rods; the folding rod is rotatably connected to the connecting plate; one end of the telescopic rod is connected to the output end of the power unit, and the other end is connected to the connecting plate.

[0021] The beneficial effects of this utility model are as follows:

[0022] (1) The first gripper connected by the rotating rod and the second gripper linked thereto clamp from both sides of the steel frame structure at the same time, simplifying its internal structure; at the same time, the greater the mass of the steel frame, the greater the clamping force of the two sets of grippers, so as to improve the stability of the hoisting fixture.

[0023] (2) The first jaws connected by two sets of rotating rods and sliding plates clamp the steel frame from both sides. While the two sets of first jaws clamp the steel frame, the second jaws further clamp it from the inside, making the suspension of the steel frame more stable. At the same time, the clamping force of the two sets of first jaws and second jaws on the steel frame changes with the mass of the steel frame. The greater the mass of the steel frame, the greater the clamping force of the two sets of jaws will be, which prevents the steel frame clamped inside the jaws from loosening due to the movement of the equipment during the hoisting process, and prevents it from falling off or even detaching, thus improving the safety of the hoisting process.

[0024] (3) By setting up a clamping plate and forming a U-shaped clamping space with the first and second clamps, the steel frame is prevented from falling and the stability of the clamp on the steel frame is further enhanced.

[0025] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0026] Figure 1 A schematic diagram of the external structure of a lifting clamp provided in an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the internal structure of a lifting clamp provided in an embodiment of this application;

[0028] Figure 3 This is a front view of the clamping component;

[0029] Figure 4 This is a schematic diagram of the connection structure between the side plate and the clamping plate.

[0030] In the diagram: 100-Folding assembly; 101-Rotating rod; 102-Connecting shaft; 103-Folding rod; 2-Clamping assembly; 201-Slide plate; 202-First gripper; 203-Support rod; 204-Gear; 205-Second gripper; 206-Side plate; 207-Clamping plate; 208-First anti-slip pad; 209-Second anti-slip pad; 2010-Fixing bolt; 3-Slide groove; 4-Connecting plate; 5-Telescopic rod; 6-Power unit. Detailed Implementation

[0031] 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.

[0032] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Please see Figure 1-4 This application provides a lifting clamp, including a folding assembly 100, a support rod 203, and a clamping assembly 2. The clamping assembly 2 is mounted on the support rod 203 and rotatably connected to the folding assembly 100. The folding assembly 100 drives the clamping assembly 2 to clamp a steel frame. Specifically, the folding assembly 100 has at least one rotating rod 101, which is slidably connected to the support rod 203. The clamping assembly 2 has a sliding plate 201 slidably mounted on the support rod 203, a first gripper 202, and a second gripper 205. One end of the rotating rod 101 is rotatably connected to the sliding plate 201, and the first gripper 202 is fixed to the sliding plate 201. The rotating rod 101 can drive the sliding plate 201 to slide along the length of the support rod 203, and simultaneously drive the first gripper 202 to move. The second gripper 205 is slidably connected to the support rod 203. The clamping assembly 2 is also provided with a gear 204 rotatably connected to the support rod 203. The first gripper 202 or the slide plate 201 is provided with a first rack, and the second gripper 205 is provided with a second rack. The first rack and the second rack are respectively provided on both sides of the gear 204 and mesh with the gear 204 so that the gear 204 rotates and drives the first gripper 202 and the second gripper 205 to move in opposite directions, thereby realizing the clamping and release of the steel frame.

[0035] This application provides a lifting clamp, in which a first jaw 202 connected by a rotating rod 101 and a second jaw 205 linked thereto simultaneously clamp from both sides of a steel frame structure. The greater the mass of the steel frame, the greater the clamping force of the two sets of jaws, thereby improving the stability of the lifting clamp.

[0036] Preferably, in this embodiment, the folding assembly 100 is provided with two rotating rods 101, which are rotatably connected; the clamping assembly 2 consists of two sets, symmetrically arranged on the support rod 203. The rotating rods 101 are connected to one end of the slide plate 201 near the middle of the support rod 203, and the first gripper 202 is fixed to one end of the slide plate 201 near the end of the support rod 203. During the suspension of the steel frame, the lifting clamp first engages two sets of first jaws 202 and second jaws 205 between the two steel columns at the outer end of the steel frame. During suspension, the two sets of rotating rods 101 rotate inwards, causing the sliding plate 201 to move relative to each other inside the support rod 203. This, in turn, causes the two sets of first jaws 202 to move relative to each other towards the middle of the support rod 203, thus clamping the steel frame from both sides at the outer end. As the two sets of first jaws 202 move, their first rack drives the gear 204 to rotate inside the support rod 203. The gear 204 further drives the second rack to move in the opposite direction, causing the second jaws 205 to move in the opposite direction, thus clamping the steel frame from the inside. Simultaneously, the clamping force between the two sets of first jaws 202 and second jaws 205 varies with the mass of the steel frame; the greater the mass of the steel frame, the greater the clamping force of the two sets of jaws, preventing the steel frame from loosening or even falling during suspension, thus improving safety during the lifting process.

[0037] Furthermore, in some embodiments, the support rod 203 is provided with a groove 3 along its length direction, and the end of the rotating rod 101 is provided with a connecting shaft 102 slidably connected to the groove 3, so as to ensure that the rotating rod 101 can slide smoothly along the length direction of the support rod 203.

[0038] Furthermore, in some embodiments, the rotating rod 101 is provided with a first rotating part and a second rotating part, which are extended and connected to form a certain angle; the two rotating rods 101 are symmetrically rotated and connected through a bend. Preferably, the first rotating part and the second rotating part form an included angle of less than or equal to 90°.

[0039] Furthermore, in some embodiments, the clamping assembly 2 further includes two side plates 206 fixedly connected to the first gripper 202 and the second gripper 205 at the lower end of the support rod 203, and a clamping plate 207 movably connected to the side plates 206. In this configuration, the first gripper 202, the second gripper 205, and the clamping plate 207 form a U-shaped clamping space to prevent the steel frame from falling. Specifically, one end of the clamping plate 207 is rotatably connected to one of the side plates, and the other end is detachably connected to the other side plate. During the suspension of the steel frame, the clamping plate 207 is fixed to one side plate 206 to prevent the steel frame from falling in the event of a clamp failure, further enhancing the stability of the clamping mechanism in holding the steel frame.

[0040] As an example, in this embodiment, one end of the clamping plate 207 and the side plate 206 are detachably connected by a fixing bolt 2010.

[0041] Furthermore, in some embodiments, the clamping assembly 2 further includes a first anti-slip pad 208 fixed to the inner side of the first gripper 202 and the second gripper 205, and a second anti-slip pad 209 fixed to the end face of the clamping plate 207 facing the support rod 203. The first anti-slip pad 208 and the second anti-slip pad 209 abut against the steel frame to prevent the steel frame from falling and further improve the stability of clamping the steel frame.

[0042] Furthermore, in some embodiments, the outer end face of the support rod 203 is provided with a scale, and the inner sides of the first gripper 202 and the second gripper 205 are provided with pointers for measuring the width of the steel column of the steel frame clamped between the first gripper 202 and the second gripper 205. Specifically, the pointers and the first anti-slip pad 208 are located on the same plane.

[0043] Furthermore, in some embodiments, the folding assembly 100 further includes folding rods 103 rotatably connected to the rotating rod 101, with two sets of folding rods 103 rotatably connected to form a folding space with the rotating rod 101. In this embodiment, the folding space formed by the two sets of rotating rods 101 and the two sets of folding rods 103 is rhomboid in shape.

[0044] Furthermore, the lifting clamp also includes a connecting plate 4, a telescopic rod 5, and a power unit 6 located at the connection point of the two sets of folding rods 103. The folding rods 103 are rotatably connected to the connecting plate 4; one end of the telescopic rod 5 is connected to the output end of the power unit 6, and the other end is connected to the connecting plate 4. During the clamping process, the power unit 6 drives the telescopic rod 5 to move, thereby causing the two sets of rotating rods 101 and the folding rods 103 to rotate, thus realizing the clamping and releasing operation of the steel frame. As an example, in this embodiment, the power unit 6 is a hydraulic cylinder. In other embodiments, the power unit 6 can also be other devices that can drive the telescopic rod 5 to move, which will not be described in detail here.

[0045] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows:

[0046] (1) The first gripper connected by the rotating rod and the second gripper linked thereto clamp from both sides of the steel frame structure at the same time, simplifying its internal structure; at the same time, the greater the mass of the steel frame, the greater the clamping force of the two sets of grippers, so as to improve the stability of the hoisting fixture.

[0047] (2) The first jaws connected by two sets of rotating rods and sliding plates clamp the steel frame from both sides. While the two sets of first jaws clamp the steel frame, the second jaws further clamp it from the inside, making the suspension of the steel frame more stable. At the same time, the clamping force of the two sets of first jaws and second jaws on the steel frame changes with the mass of the steel frame. The greater the mass of the steel frame, the greater the clamping force of the two sets of jaws will be, which prevents the steel frame clamped inside the jaws from loosening due to the movement of the equipment during the hoisting process, and prevents it from falling off or even detaching, thus improving the safety of the hoisting process.

[0048] (3) By setting up a clamping plate and forming a U-shaped clamping space with the first and second clamps, the steel frame is prevented from falling and the stability of the clamp on the steel frame is further enhanced.

[0049] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A lifting clamp, characterized in that, include: The folding assembly has at least one rotating rod; Support rod, the rotating rod being slidably connected to the support rod; At least one clamping assembly is movably mounted on the support rod; the clamping assembly includes a sliding plate rotatably connected to the rotating rod, a first gripper, and a second gripper; the sliding plate is slidably disposed inside the support rod; the first gripper is fixedly connected to the sliding plate and is displaced by the sliding plate; the second gripper is slidably connected to the support rod. The clamping assembly further includes a gear rotatably connected to the support rod. The first gripper or the slide plate is provided with a first rack, and the second gripper is provided with a second rack. The first rack and the second rack are respectively provided on both sides of the gear and mesh with the gear so that the gear rotates to drive the first gripper and the second gripper to move in opposite directions.

2. The lifting clamp according to claim 1, characterized in that: The folding assembly is provided with two rotating rods, which are rotatably connected. The clamping assembly consists of two sets, symmetrically arranged on the support rod; The rotating rod is rotatably connected to the slide plate near the middle of the support rod, and the first gripper is fixed to the slide plate near the end of the support rod.

3. A lifting clamp according to claim 2, characterized in that: The rotating rod is provided with a first rotating part and a second rotating part, the first rotating part and the second rotating part are extended and connected and form a certain angle; the two rotating rods are symmetrically rotated and connected through the bend.

4. A lifting clamp according to claim 2, characterized in that: The clamping assembly also includes two side plates fixedly connected to the first and second grippers at one end below the support rod, and a clamping plate movably connected to the side plates.

5. A lifting clamp according to claim 4, characterized in that: One end of the clamp is rotatably connected to one of the side plates, and the other end is detachably connected to the other side plate.

6. A lifting clamp according to claim 4, characterized in that: The clamping assembly further includes a first anti-slip pad fixed on the opposite side of the first and second clamping claws, and a second anti-slip pad fixed on the end face of the clamping plate facing the support rod.

7. A lifting clamp according to claim 6, characterized in that: The outer end face of the support rod is provided with a scale, and the first gripper and the second gripper are provided with pointers, the pointers being located on the same plane as the first anti-slip pad.

8. A lifting clamp according to claim 2, characterized in that: The support rod has a groove along its length, and the end of the rotating rod is provided with a connecting shaft that is slidably connected to the groove.

9. A lifting clamp according to claim 2, characterized in that: The folding assembly also includes a folding rod rotatably connected to the rotating rod, and the two sets of folding rods are rotatably connected to each other.

10. A lifting clamp according to claim 9, characterized in that, Also includes: The power unit, the telescopic rod, and the connecting plate located at the connection point of the two sets of the folding rods; The folding rod is rotatably connected to the connecting plate; One end of the telescopic rod is connected to the output end of the power device, and the other end is connected to the connecting plate.

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