Hoisting clamp suitable for small steel member

Abstract

The utility model relates to the field of hoisting clamps, and discloses a hoisting clamp suitable for small steel members, the hoisting clamp comprises a clamping jaw body, the interior of the front surface of the clamping jaw body is hollowed out, a lifting lug is arranged at the upper end of the clamping jaw body, and a connecting plate is fixedly connected to the bottom of the lifting lug; according to the clamping jaw, the gears are mounted at the bottoms of the connecting plates, so that when the clamping jaw is lifted through the lifting lugs, the connecting plates rotate to be perpendicular to the ground, the gears rotate through rotation of the connecting plates, and under the meshing action of the gears and the rack plates, the movable clamping plates are driven to move towards the inner sides of the clamping jaw bodies, and therefore a steel component is clamped and fixed; by installing the limiting stop blocks, the two ends of the connecting plate during hoisting and transportation are limited, the situation that the connecting plate swings back and forth to cause loosening of the bottom movable clamping plate and falling of the steel member is avoided, the stability of the device is improved, objects are clamped through rotation of the connecting plate, the construction cost is saved, and the service life is longer.

Description

Technical Field

[0001] The present application relates to the field of lifting clamps, and in particular to a lifting clamp suitable for small steel components. Background Art

[0002] The hoisting of steel components is one of the important links in the field of steel structures. It is directly related to the safety, efficiency and reliability of lifting and lowering steel components. Traditionally, steel components are hoisted by welding lifting lugs, punching holes, bundling, etc., and the steel components are hoisted to a certain height by clamping with lifting fixtures, lifting lugs, holes, etc.

[0003] However, traditional lifting clamps require the use of electrical equipment or springs as a power source to clamp and lift steel components, increasing production input costs. If springs are used, their service life is limited and they need to be regularly maintained and replaced, which is very inconvenient to use. For this reason, we urgently need to provide lifting clamps suitable for small steel components. Utility Model Content

[0004] In order to solve the problem that electrical equipment or springs are used as a power source to clamp and lift steel components, which increases production input costs, and if springs are used, the service life is limited and the springs need to be regularly maintained and replaced, which is very inconvenient to use, the present application provides a lifting clamp suitable for small steel components.

[0005] The lifting clamp for small steel components provided in this application adopts the following technical solution:

[0006] A hoisting clamp suitable for small steel components comprises a clamp body, the front surface of the clamp body is hollowed out, a lifting ear is provided at the upper end of the clamp body, a connecting plate is fixedly connected to the bottom of the lifting ear, and a clamping mechanism is provided inside the clamp body;

[0007] The clamping mechanism comprises a fixing rod, the middle part of the outer surface of the fixing rod is fixedly connected to the inner lower end of the connecting plate, and the two ends of the fixing rod are rotatably connected to the inner side surface of the upper end of the clamp body.

[0008] Preferably, the fixing rod passes through the inner surface of the upper end of the clamp body and is fixedly connected with a gear, and the gear is arranged inside the front surface of the clamp body.

[0009] Preferably, a movable clamping plate is provided on the right side of the bottom of the inner surface of the clamping jaw body, a protrusion is fixedly connected to the bottom of the movable clamping plate, and a sliding block is fixedly connected to the top of the movable clamping plate.

[0010] Preferably, a slide groove is provided at the bottom of the inner surface of the clamp body, the outer surface of the sliding block is slidably connected to the inner surface of the slide groove, and a guide groove is provided on the inner surface of the clamp body.

[0011] Preferably, an L-shaped limit rod is fixedly connected to the upper end of the side of the movable splint, the side surface of the L-shaped limit rod is slidably connected to the inner surface of the guide groove, and a rack plate is fixedly installed on the upper end of the L-shaped limit rod, and the upper part of the rack plate is meshed with the side of the gear.

[0012] Preferably, both sides of the upper end of the clamp body are threadedly connected with limit stops, and the limit stops are detachably mounted on the upper end of the clamp body through screws and are located on both sides of the connecting plate.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] By installing a gear at the bottom of the connecting plate, when the device is lifted by the lifting ear, the connecting plate rotates and becomes perpendicular to the ground. The gear rotates through the rotation of the connecting plate, and drives the movable clamp to move toward the inside of the clamp body under the action of meshing with the rack plate, so as to clamp and fix the steel structure. By installing a limit block, the two ends of the connecting plate are limited during lifting and transportation, so as to prevent the connecting plate from swinging back and forth and causing the bottom movable clamp to loosen and cause the steel structure to fall off, thereby improving the stability of the device, clamping the objects by rotating the connecting plate, saving construction costs and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of an embodiment of the application;

[0016] Figure 2 is a schematic diagram of the bottom structure of the lifting ear of the embodiment of the application;

[0017] Figure 3 is a schematic diagram of the internal structure of the clamp body of the embodiment of the application;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the clamp body of the application embodiment.

[0019] Explanation of the accompanying drawings: 1. Clamp body; 2. Lifting ear; 3. Connecting plate; 4. Clamping mechanism; 401. Fixed rod; 402. Gear; 403. Movable splint; 404. Slider; 405. L-shaped limiting rod; 406. Rack plate; 407. Slide groove; 408. Guide groove; 409. Protrusion; 5. Limit block. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4 This application is described in further detail.

[0021] The present application embodiment discloses a lifting clamp suitable for small steel components, referring to Figure 1-Figure 4, comprising a clamp body 1, the front surface of the clamp body 1 is hollowed out, the upper end of the clamp body 1 is provided with a lifting ear 2, the bottom of the lifting ear 2 is fixedly connected with a connecting plate 3, and the inside of the clamp body 1 is provided with a clamping mechanism 4;

[0022] The clamping mechanism 4 includes a fixed rod 401, the middle of the outer surface of the fixed rod 401 is fixedly connected to the inner lower end of the connecting plate 3, the two ends of the fixed rod 401 are rotatably connected to the inner surface of the upper end of the clamp body 1, the fixed rod 401 passes through the inner surface of the upper end of the clamp body 1 and is fixedly connected with a gear 402, the gear 402 is arranged inside the front surface of the clamp body 1, and a movable clamping plate 403 is arranged on the right side of the bottom of the inner surface of the clamp body 1, and a protrusion 409 is fixedly connected to the bottom of the movable clamping plate 403, and the protrusion 409 is arranged to facilitate the bottom of the clamp body 1. The opening is completely closed, thereby improving the clamping effect. The top of the movable splint 403 is fixedly connected with a slider 404. The bottom of the inner surface of the clamp body 1 is provided with a slide groove 407. The outer surface of the slider 404 is slidably connected to the inner surface of the slide groove 407. The stability of the movable splint 403 during movement is enhanced by the mutual cooperation of the slide groove 407 and the slider 404. The inner surface of the clamp body 1 is provided with a guide groove 408. The upper end of the side of the movable splint 403 is fixedly connected with an L-shaped limiting rod 405. The side surface of the L-shaped limiting rod 405 and the guide groove 408 are connected. The inner surface is slidably connected, and the cooperation of the L-shaped limit rod 405 and the guide groove 408 further ensures the stability of the movable splint 403 during horizontal movement. A rack plate 406 is fixedly installed on the upper end of the L-shaped limit rod 405, and the upper part of the rack plate 406 meshes with the side of the gear 402. The gear 402 is installed at the bottom of the connecting plate 3, so that when the device is lifted by the lifting ear 2, the connecting plate 3 rotates and becomes vertical to the ground. The gear 402 rotates through the rotation of the connecting plate 3, and drives the movable splint 403 under the meshing action with the rack plate 406. It moves toward the inner side of the clamp body 1, so as to clamp and fix the steel component. The upper ends of the clamp body 1 are threadedly connected with limit stops 5, which are detachably mounted on the upper end of the clamp body 1 and located on both sides of the connecting plate 3 through screws. By detachably mounting the limit stops 5, the two ends of the connecting plate 3 during lifting and transportation are limited to prevent the connecting plate 3 from swinging back and forth and causing the bottom movable clamp 403 to loosen and cause the steel component to fall off, thereby improving the stability of the device, clamping objects by rotating the connecting plate 3, saving construction costs and increasing service life.

[0023] The implementation principle of the lifting clamp for small steel components in the embodiment of the present application is as follows: when the device is needed, the steel component to be clamped is placed in the notch at the bottom of the clamp body 1, and then the connecting plate 3 is rotated to a vertical state, so that the movable clamp plate 403 is driven to move the notch under the action of the gear 402 and the rack plate 406, thereby clamping the steel component, and then the lifting clamp is lifted by passing the traction rope through the lifting ear 2 or other equipment. Due to the gravity of the steel component itself, the connecting plate 3 remains vertical to the ground when the clamp body 1 is lifted, so that the movable clamp plate 403 will not loosen easily, and then the limit block 5 is installed at both ends of the upper part of the clamp body 1 by a screw to limit the connecting plate 3, so as to avoid the phenomenon that the steel component falls off due to the shaking of the connecting plate 3 during transportation.

[0024] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0025] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0027] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lifting clamp for small steel components, comprising a clamp body (1), characterized in that: The front surface of the clamp body (1) is hollowed out, the upper end of the clamp body (1) is provided with a lifting ear (2), the bottom of the lifting ear (2) is fixedly connected with a connecting plate (3), and the inside of the clamp body (1) is provided with a clamping mechanism (4); The clamping mechanism (4) comprises a fixing rod (401), the middle portion of the outer surface of the fixing rod (401) is fixedly connected to the inner lower end of the connecting plate (3), and the two ends of the fixing rod (401) are rotatably connected to the inner surface of the upper end of the clamping jaw body (1).

2. The lifting clamp for small steel components according to claim 1 is characterized in that: The fixing rod (401) passes through the inner surface of the upper end of the clamp body (1) and is fixedly connected to a gear (402), and the gear (402) is arranged inside the front surface of the clamp body (1).

3. The lifting clamp for small steel components according to claim 2, characterized in that: A movable clamping plate (403) is provided on the right side of the bottom of the inner surface of the clamping jaw body (1), a protrusion (409) is fixedly connected to the bottom of the movable clamping plate (403), and a sliding block (404) is fixedly connected to the top of the movable clamping plate (403).

4. The lifting clamp for small steel components according to claim 3 is characterized in that: A slide groove (407) is provided at the bottom of the inner surface of the clamp body (1), the outer surface of the slider (404) is slidably connected to the inner surface of the slide groove (407), and a guide groove (408) is provided on the inner surface of the clamp body (1).

5. The lifting clamp for small steel components according to claim 4, characterized in that: An L-shaped limiting rod (405) is fixedly connected to the upper end of the side of the movable clamping plate (403), and the side surface of the L-shaped limiting rod (405) is slidably connected to the inner surface of the guide groove (408). A rack plate (406) is fixedly installed on the upper end of the L-shaped limiting rod (405), and the upper part of the rack plate (406) is meshed with the side of the gear (402).

6. The lifting clamp for small steel components according to claim 1, characterized in that: The upper ends of the clamping jaw body (1) are threadedly connected to limit stops (5), and the limit stops (5) are detachably mounted on the upper ends of the clamping jaw body (1) and are located on both sides of the connecting plate (3) via screws.

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