Grabbing device for precast concrete

Abstract

The utility model provides a gripping device for a concrete prefabricated part, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The grabbing device for the concrete prefabricated part comprises a rack and further comprises a pre-tightening assembly and a grabbing assembly, the grabbing assembly is connected to the lower portion of the rack, a grabbing part used for grabbing the concrete prefabricated part is formed in the grabbing assembly, and the pre-tightening assembly is connected to the rack and located at the grabbing part. And under the action of the pre-tightening assembly, the precast concrete located on the grabbing part can be loosened. The gripping device for the concrete prefabricated part is high in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a grabbing device for prefabricated concrete parts. Background Art

[0002] Precast concrete parts are usually large in size and are usually handled with specialized gripping devices.

[0003] The existing grabbing device is usually a steel wire rope or other ropes with relatively high strength. After the rope or steel wire rope is used to bind the concrete prefabricated parts, the steel wire rope or rope is connected to the hook of the gantry vehicle.

[0004] It can be seen that although the above operation can realize the transportation of heavy and large-sized precast concrete parts, it takes a lot of time to tie the ropes to the precast concrete parts, and the binding stability is completely determined by the experience of the operators, resulting in low operation efficiency and potential safety hazards. Summary of the invention

[0005] The purpose of the utility model is to provide a grabbing device for prefabricated concrete parts with high working efficiency and compact structure in view of the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A grabbing device for precast concrete parts comprises a frame, and is characterized in that it also comprises a pre-tightening assembly and a grabbing assembly, wherein the grabbing assembly is connected to the lower part of the frame and a grabbing portion for grabbing the precast concrete parts is formed inside the grabbing assembly, the pre-tightening assembly is connected to the frame and the pre-tightening assembly is located at the grabbing portion, and the precast concrete parts located at the grabbing portion can be loosened under the action of the pre-tightening assembly.

[0008] The grabbing device for precast concrete parts creatively provides an additional pre-tightening component at the grabbing portion of the grabbing component. After the pre-tightening component is pressed against the grabbed precast concrete part, loosening of the grabbed precast concrete part can be avoided, thereby effectively improving the grabbing stability.

[0009] In the above-mentioned grabbing device for precast concrete parts, the grabbing assembly includes a driving member and a claw, the upper part of the claw is hinged on the frame, the driving member is connected to the claw, the driving member can drive the claw to swing around its hinge, the above-mentioned driving member and the claw form a grabbing unit, the number of the grabbing units is two, the two grabbing units are symmetrically arranged on both sides of the frame, and the claws of the two grabbing units can swing towards each other.

[0010] The driving parts in the two grabbing units move synchronously, and the two claws swing towards each other around their hinges. That is, when the two claws are close to each other, the grabbing operation is complete; when the two claws are away from each other, the unloading operation of the grabbed precast concrete parts is completed.

[0011] In the above-mentioned grabbing device for precast concrete parts, the clamping claw includes a connecting shaft, a connecting section, a base plate and a claw body. The connecting shaft is axially fixedly connected to the lower part of the frame and can rotate relative to the frame. The base plate is in the shape of a long plate. One end of the connecting section is fixedly connected to the connecting shaft, and the other end of the connecting section is fixedly connected to the base plate. The inner end of the claw body is fixedly connected to the base plate, and the outer end of the claw body extends out of the base plate. The number of the claw bodies is several, and the several claw bodies are evenly distributed along the width direction of the base plate.

[0012] Since the width of the base plate is relatively large and a plurality of claws are arranged on the base plate, the entire claw can stably grasp large-sized precast concrete parts.

[0013] Under the action of the connecting section, not only can the base plate be stably connected to the lower part of the connecting shaft, but also the length of the claw is correspondingly improved.

[0014] In the above-mentioned grabbing device for precast concrete parts, the connecting section is arc-shaped.

[0015] The arc-shaped connecting section can make two adjacent claws on the left and right sides as close to each other as possible.

[0016] In the above-mentioned grabbing device for precast concrete parts, the inner end of the claw body is a connecting section, and the outer end of the claw body is a grabbing section. The connecting section contacts the substrate surface and the two are fixedly connected by a fastener.

[0017] The contact area between the connecting section and the substrate is relatively large, and such a structure can ensure that the claw body is stably connected to the substrate.

[0018] In the above-mentioned grabbing device for precast concrete parts, the grabbing section is arc-shaped.

[0019] The arc-shaped gripping section enables the claw to grip the precast concrete component stably.

[0020] In the above-mentioned grabbing device for precast concrete parts, the pre-tightening assembly includes a cylinder and a pressure plate, the cylinder body of the cylinder is fixedly connected to the lower part of the frame, the pressure plate is fixedly connected to the cylinder body of the cylinder, and the pressure plate is located at the upper part between the two claws.

[0021] After the cylinder drives the pressing plate to move downward, the pressing plate can stably rest against the grasped precast concrete part, ensuring that the grasped precast concrete part will not loosen.

[0022] In the above-mentioned grabbing device for precast concrete parts, the above-mentioned cylinder and the pressing plate form a pre-tightening unit, and the number of the pre-tightening units is two.

[0023] The provision of multiple pre-tightening units can further ensure that the gripped precast concrete parts are not loosened.

[0024] In the above-mentioned grabbing device for precast concrete parts, the frame is also provided with a limiting assembly, and the above-mentioned claws can touch the limiting assembly when they are opened.

[0025] In the above-mentioned grabbing device for precast concrete parts, the limiting assembly includes a connecting plate and a buffer column, the inner end of the connecting plate is fixedly connected to the frame, and the buffer column is fixedly connected to the outer end of the connecting plate and the buffer column is directly opposite to the connecting section.

[0026] Under the action of the connecting plate, the buffer column and the connecting section can be directly opposite, and when the claw swings around its hinge, the connecting section abuts against the buffer column to prevent the claw from opening further. That is, the claw can only swing within a set arc.

[0027] In the above-mentioned grabbing device for precast concrete parts, the buffer column is made of rubber material.

[0028] In the above-mentioned grabbing device for precast concrete parts, the buffer column is made of wooden material.

[0029] Whether it is made of rubber or wood, the buffer column can achieve a certain buffering effect, not only limiting the swing stroke of the claw, but also preventing the claw from rigidly contacting the frame.

[0030] Compared with the prior art, the grabbing device for precast concrete parts can prevent the grabbed precast concrete parts from loosening under the action of the pre-tightening component after the grabbing component grabs the precast concrete parts, thereby effectively improving the grabbing stability and the safety during the operation.

[0031] At the same time, since the claw has multiple claws, the width of the entire claw is relatively large, so it can stably grasp large-sized prefabricated concrete parts and has high practical value.

[0032] In addition, the two clamping claws are symmetrically arranged on the left and right, and the pre-tightening component is located between the two clamping claws, so the structure of the entire device is relatively compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the grabbing device of the concrete precast part.

[0034] Figure 2 It is a structural schematic diagram of a rod section in the grabbing device of the concrete precast part.

[0035] In the figure, 1, frame; 2, driving part; 3, claw; 3a, connecting shaft; 3b, connecting section; 3c, base plate; 3d, claw body; 3d1, connecting section; 3d2, grabbing section; 4, cylinder; 5, pressure plate; 6, connecting plate; 7, buffer column; 8, rod section 1. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0039] like Figure 1 As shown, the grabbing device of the precast concrete part includes a frame 1, and also includes a pre-tightening component and a grabbing component. The grabbing component is connected to the lower part of the frame and a grabbing part for grabbing the precast concrete part is formed inside the grabbing component. The pre-tightening component is connected to the frame and the pre-tightening component is located at the grabbing part. Under the action of the pre-tightening component, the precast concrete part located at the grabbing part can be loosened.

[0040] like Figure 1 and Figure 2 As shown, the grabbing assembly includes a driving member 2 and a claw 3, the upper part of the claw 3 is hinged on the frame 1, the driving member 2 is connected to the claw 3, the driving member 2 can drive the claw 3 to swing around its hinge, the driving member 2 and the claw 3 form a grabbing unit, the number of the grabbing units is two, the two grabbing units are symmetrically arranged on both sides of the frame 1, and the claws 3 of the two grabbing units can swing towards each other.

[0041] The claw 3 includes a connecting shaft 3a, a connecting section 3b, a base plate 3c and a claw body 3d. The connecting shaft 3a is axially fixedly connected to the lower part of the frame 1 and can rotate relative to the frame 1. The base plate 3c is in the shape of a long plate. One end of the connecting section 3b is fixedly connected to the connecting shaft 3a, and the other end of the connecting section 3b is fixedly connected to the base plate 3c. The inner end of the claw body 3d is fixedly connected to the base plate 3c, and the outer end of the claw body 3d extends out of the base plate 3c. There are several claw bodies 3d, and the several claw bodies 3d are evenly distributed along the width direction of the base plate 3c.

[0042] The side of the connecting shaft 3a has a protruding rod section 8, and the above-mentioned driving member 2 is a cylinder, the cylinder body of the cylinder is hinged on the frame 1, and the piston rod of the cylinder is hinged to the rod section 8.

[0043] The connecting section 3b is arc-shaped.

[0044] The inner end of the claw body 3d is a connecting section 3d1, and the outer end of the claw body 3d is a grabbing section 3d2. The connecting section 3d1 is in surface contact with the base plate 3c and the two are fixedly connected by a fastener.

[0045] The grabbing section 3d2 is arc-shaped.

[0046] The pre-tightening assembly includes a cylinder 4 and a pressure plate 5 . The cylinder body of the cylinder 4 is fixedly connected to the lower part of the frame 1 . The pressure plate 5 is fixedly connected to the cylinder body of the cylinder 4 . The pressure plate 5 is located at the upper part between the two claws 3 .

[0047] The cylinder 4 and the pressure plate 5 form a pre-tightening unit, and the number of the pre-tightening units is two.

[0048] The frame 1 is also provided with a limit assembly, and the above-mentioned claws 3 can touch the limit assembly when opened.

[0049] The limiting assembly includes a connecting plate 6 and a buffer column 7. The inner end of the connecting plate 6 is fixedly connected to the frame 1, and the buffer column 7 is fixedly connected to the outer end of the connecting plate 6 and the buffer column 7 is directly opposite to the connecting section 3b.

[0050] The buffer column 7 is made of rubber material. According to actual conditions, it is also feasible that the buffer column 7 is made of wood material.

[0051] The grabbing device for precast concrete parts creatively provides an additional pre-tightening component at the grabbing portion of the grabbing component. After the pre-tightening component is pressed against the grabbed precast concrete part, loosening of the grabbed precast concrete part can be avoided, thereby effectively improving the grabbing stability.

[0052] The driving parts in the two grabbing units move synchronously, and the two claws swing towards each other around their hinges. That is, when the two claws are close to each other, the grabbing operation is complete; when the two claws are away from each other, the unloading operation of the grabbed precast concrete parts is completed.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A grabbing device for a precast concrete part, comprising a frame, characterized in that: It also includes a pre-tightening component and a grabbing component. The grabbing component is connected to the lower part of the frame and a grabbing part for grabbing the prefabricated concrete parts is formed inside the grabbing component. The pre-tightening component is connected to the frame and the pre-tightening component is located at the grabbing part. Under the action of the pre-tightening component, the prefabricated concrete parts located at the grabbing part can be loosened.

2. The grabbing device for precast concrete parts according to claim 1, characterized in that: The grabbing assembly includes a driving member and a claw, the upper part of the claw is hinged on the frame, the driving member is connected to the claw, the driving member can drive the claw to swing around its hinge, the driving member and the claw form a grabbing unit, the number of the grabbing units is two, the two grabbing units are symmetrically arranged on both sides of the frame, and the claws of the two grabbing units can swing towards each other.

3. The grabbing device for precast concrete parts according to claim 2, characterized in that: The clamping claw includes a connecting shaft, a connecting section, a base plate and a claw body. The connecting shaft is axially fixedly connected to the lower part of the frame and can rotate relative to the frame. The base plate is in the shape of a long plate. One end of the connecting section is fixedly connected to the connecting shaft, and the other end of the connecting section is fixedly connected to the base plate. The inner end of the claw body is fixedly connected to the base plate, and the outer end of the claw body extends out of the base plate. There are several claw bodies, and the several claw bodies are evenly distributed along the width direction of the base plate.

4. The grabbing device for precast concrete parts according to claim 3, characterized in that: The connecting section is in an arc shape.

5. The grabbing device for precast concrete parts according to claim 4, characterized in that: The inner end of the claw body is a connecting section, and the outer end of the claw body is a grabbing section. The connecting section contacts the substrate surface and the two are fixedly connected by a fastener.

6. The grabbing device for precast concrete parts according to claim 5, characterized in that: The grabbing section is arc-shaped.

7. The grabbing device for precast concrete parts according to claim 6, characterized in that: The pre-tightening assembly comprises a cylinder and a pressure plate, wherein the cylinder body of the cylinder is fixedly connected to the lower part of the frame, the pressure plate is fixedly connected to the cylinder body of the cylinder, and the pressure plate is located at the upper part between the two claws.

8. The grabbing device for precast concrete parts according to claim 7, characterized in that: The cylinder and the pressure plate form a pre-tightening unit, and the number of the pre-tightening units is two.

9. The grabbing device for precast concrete parts according to claim 8, characterized in that: The frame is also provided with a limiting assembly, and the above-mentioned claws can touch the limiting assembly when they are opened.

10. The gripping device for precast concrete parts according to claim 9, characterized in that: The limiting assembly comprises a connecting plate and a buffer column, wherein the inner end of the connecting plate is fixedly connected to the frame, and the buffer column is fixedly connected to the outer end of the connecting plate and the buffer column is directly opposite to the connecting section.

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