Device for pre-burying lifting lug

Abstract

The utility model relates to a device for pre-burying a lifting lug. The device comprises a connecting assembly, comprising a first connecting piece and a second connecting piece which are oppositely arranged; a clamping assembly; the clamping assembly is fixedly arranged at the bottom of the connecting assembly and comprises a first clamping plate and a second clamping plate; one ends of the first clamping plate and the second clamping plate are rotationally connected through a hinge device, and the other ends are suitable for clamping lifting lugs; a link device; the driving assembly is assembled between the first connecting piece and the second connecting piece and used for driving the first clamping plate and the second clamping plate to be opened or closed; the device is ingenious in design, is used for quickly and safely pre-burying the lifting lug, can perfectly replace traditional pearl wool or foam, provides a lifting space for a hook, is durable, can be used for multiple times, is simple to operate and is light and convenient, and the surface of a pit taken out after the lifting lug is pre-buried is smooth and attractive, so that the working efficiency is improved, and the labor intensity of workers is reduced. And the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a device for pre-embedded lifting ears. Background Art

[0002] In the process of making prefabricated concrete square piles, lifting ears are usually embedded in advance for lifting and demoulding of the pile body to provide lifting conditions for the vehicle. During the embedding process, pearl cotton blocks or foam blocks need to be embedded in the lifting ears to provide lifting space for the hooks (that is, the pearl cotton or foam is embedded in advance, and after the pile body hardens, the pearl cotton or foam is taken out, so that a pit with a lifting ear appears, which is convenient for the hook to hook). However, the pearl cotton or foam cannot be used for a second time, which is very wasteful and also increases the white pollution in the production process.

[0003] In view of the above problems, it is necessary to improve them. Utility Model Content

[0004] The utility model aims to overcome the defects in the prior art and provides a pre-embedded lifting lug device which has a simple structure, ingenious design, can be repeatedly used, and reduces production costs.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A device for pre-embedded lifting ears, including a connecting assembly; including a first connecting piece and a second connecting piece arranged relatively to each other; a clamping assembly; fixedly arranged at the bottom of the connecting assembly, the clamping assembly includes a first clamping plate and a second clamping plate; one end of the first clamping plate and the second clamping plate are rotatably connected by a hinge device, and the other end is suitable for clamping the lifting ear; a connecting rod device; assembled between the first connecting piece and the second connecting piece, and used to drive the first clamping plate and the second clamping plate to open or close.

[0007] As a preferred solution of the utility model, the outer surfaces of the first connecting member and the first clamping plate are the same arc-shaped surface, and the outer surfaces of the second connecting member and the second clamping plate are the same arc-shaped surface.

[0008] As a preferred solution of the utility model, a first inclined surface is formed on the top of the first clamping plate, a second inclined surface is formed on the top of the second clamping plate near the first clamping plate, and the first inclined surface and the second inclined surface are combined to form a V-shaped groove.

[0009] As a preferred solution of the utility model, the outer sides of the first clamping plate and the second clamping plate are both in an arc-shaped structure.

[0010] As a preferred solution of the present invention, the widths of the first clamping plate and the second clamping plate decrease successively along the insertion direction of the clamping assembly.

[0011] As a preferred solution of the utility model, a first clamping surface in a vertical direction is formed on the inner side of the first clamping plate; a second clamping surface in a vertical direction is formed on the inner side of the second clamping plate; when the first clamping plate and the second clamping plate clamp the lifting ear, the first clamping surface and the second clamping surface fit each other.

[0012] As a preferred solution of the utility model, a first clamping opening is formed on the first clamping surface, a second clamping opening is formed on the second clamping surface, and the first clamping opening and the second clamping opening are combined to form a clamping groove; the shape of the clamping groove matches the shape of the lifting ear to be clamped.

[0013] As a preferred solution of the utility model, the shape of the clamping groove is circular or elliptical, and the first clamping opening and the second clamping opening cooperate with each other to clamp the lifting ear.

[0014] As a preferred solution of the utility model, first guide grooves are formed on both sides of the first clamping surface, the first guide grooves are located at the lower end of the first clamping mouth, and are arranged along the height direction of the first clamping plate. Second guide grooves are formed on both sides of the second clamping surface, the first guide grooves are located at the lower end of the second clamping mouth, and are arranged along the height direction of the second clamping plate.

[0015] As a preferred solution of the present utility model, the first guide groove and the second guide groove are in an arc-shaped structure.

[0016] As a preferred solution of the utility model, the connecting rod device includes a connecting rod seat, which is assembled on the second connecting member; a connecting rod; one end of which is fixed to the first connecting member and the other end is slidably connected to the connecting rod seat; an adjusting plate; which is rotatably connected to the connecting rod and the pressing member respectively; and a pressing member, which is assembled between the connecting rod seat and the adjusting plate, and is used to drive the connecting rod to move on the connecting rod seat, thereby driving the first clamp and the second clamp to open or close.

[0017] As a preferred solution of the utility model, a positioning groove with an upward opening is formed on the second connecting member, and the connecting rod seat is rotatably connected in the positioning groove.

[0018] As a preferred solution of the utility model, the connecting rod seat includes a base, and a positioning cylinder and a limit support block are respectively arranged on the top of both ends of the base; a through hole is formed in the positioning cylinder; a limit groove is formed on the limit support block; one end of the connecting rod is fixed on the first connecting member, and the other end passes through the through hole of the positioning cylinder and is rotatably connected to the adjustment plate.

[0019] As a preferred solution of the present utility model, the base, the positioning cylinder and the limiting support block are fixedly connected and integrally formed.

[0020] As a preferred solution of the utility model, the end of the base close to the hinge device is an inclined surface, and the inclined surface is located at the bottom of the positioning tube.

[0021] As a preferred solution of the utility model, two adjusting plates are provided, which are symmetrically arranged on both sides of the connecting rod, wherein the adjusting plates are located at the upper end of the base.

[0022] As a preferred solution of the utility model, the distance between the positioning cylinder and the limiting support block is greater than the length of the adjustment plate.

[0023] As a preferred solution of the utility model, the pressing member includes a pressing plate and a connecting plate, wherein the pressing plate is obliquely arranged on the connecting plate, wherein the connecting plate is rotatably connected between the two adjusting plates and the limiting grooves.

[0024] As a preferred solution of the present invention, the length of the pressing plate is greater than the length of the connecting plate.

[0025] As a preferred solution of the present invention, the inclination angles of the pressing plate and the connecting plate are 120° to 140°.

[0026] As a preferred solution of the utility model, the pressing plate and the connecting plate are fixedly connected and integrally formed.

[0027] As a preferred solution of the utility model, a first positioning plate is provided at the connection between the first connecting member and the first splint, and the first positioning plate is horizontally placed on the first splint; a second positioning plate is provided at the connection between the second connecting member and the second splint, and the second positioning plate is horizontally placed on the second splint; the top ends of the first positioning plate and the second positioning plate are rotatably connected via a hinge device.

[0028] As a preferred solution of the utility model, the width of the first positioning plate is consistent with that of the first clamping plate, and the width of the second positioning plate is consistent with that of the second clamping plate.

[0029] As a preferred solution of the utility model, the first connecting member and the first positioning plate are in an L-shaped structure and are integrally formed, and the second connecting member and the second positioning plate are in an L-shaped structure and are integrally formed.

[0030] As a preferred solution of the utility model, the hinge device includes a first hinge, a second hinge and a rotating shaft; the first hinge and the second hinge are rotatably connected via the rotating shaft.

[0031] As a preferred solution of the utility model, the first positioning plate includes a first guiding slope, which is located in the extension direction of the first inclined surface; the second positioning plate includes a second guiding slope, which is located in the extension direction of the second inclined surface.

[0032] The beneficial effects of the utility model are:

[0033] 1. The utility model is cleverly designed. The device is used for fast and safe pre-embedded lifting ears, which can perfectly replace traditional pearl cotton or foam, provide lifting space for hooks, and is durable and can be used many times. The operation is simple and the whole device is light. The surface of the pit taken out after the pre-embedded lifting ears is smooth and beautiful, and it is more suitable for giving the hooks space when hooking, thereby improving work efficiency and reducing labor costs.

[0034] 2. The utility model replaces pearl cotton or foam and reduces white pollution during production, adds a contribution to environmental protection, and can be used multiple times, reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a front view of the embedded lifting lug device of the first embodiment of the utility model;

[0036] Figure 2 This is a schematic structural diagram of a pre-embedded lifting lug device according to a first embodiment of the utility model;

[0037] Figure 3 It is a structural schematic diagram of a connecting rod device in a first embodiment of the utility model;

[0038] Figure 4 It is a schematic structural diagram of a connecting rod seat structure of a first embodiment of the utility model;

[0039] Figure 5 This is the first embodiment of the utility model Figure 2 A partial enlarged view of the A direction;

[0040] Figure 6 This is a schematic diagram of the connection between the first clamping plate and the first connecting member in the first embodiment of the utility model;

[0041] Figure 7 This is a schematic diagram of the connection between the second clamping plate and the second connecting member in the first embodiment of the utility model;

[0042] Figure 8 This is a schematic structural diagram of a pressing member in Embodiment 1 of the utility model;

[0043] Fig. 9 This is a front view of the embedded lifting lug device of the second embodiment of the utility model;

[0044] Fig.10 This is a schematic structural diagram of a pre-embedded lifting lug device according to a second embodiment of the present utility model;

[0045] Fig.11 This is a schematic structural diagram of the embedded lifting lug device after the connecting rod device is removed according to the second embodiment of the utility model;

[0046] Fig.12 This is a schematic diagram of the assembly of the first positioning plate, the first clamping plate and the first connecting member in the second embodiment of the utility model;

[0047] Fig.13 This is a schematic diagram of the assembly of the second positioning plate, the second clamping plate and the second connecting member of the second embodiment of the utility model;

[0048] Explanation of the accompanying drawings: connecting component 1, clamping component 2, connecting rod device 3, hinge device 4, connecting rod seat 5, pressing piece 6, V-shaped notch 7, clamping groove 8, first connecting member 10, second connecting member 11, first positioning plate 12, second positioning plate 13, first guide inclined surface 14, second guide inclined surface 15, positioning groove 16, first clamping plate 20, second clamping plate 21, first clamping surface 22, second clamping surface 23, first clamping mouth 24, second clamping mouth 25, first guide groove 26, second guide groove 27, first inclined surface 28, second inclined surface 29, connecting rod 30, adjusting plate 31, first hinge 40, second hinge 41, rotating shaft 42, base 50, positioning cylinder 51, limiting support block 52, through hole 53, limiting groove 54, pressing plate 60, connecting plate 61. DETAILED DESCRIPTION

[0049] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0052] Embodiment 1:

[0053] See also Figure 1 and Figure 2 , Figure 1This is a front view of the embedded lifting lug device of the first embodiment of the utility model; Figure 2 It is a structural schematic diagram of a pre-embedded lifting lug device according to a first embodiment of the utility model.

[0054] A device for pre-embedded lifting ears, including a connecting assembly 1; including a first connecting member 10 and a second connecting member 11 arranged relatively to each other; a clamping assembly 2; fixedly arranged at the bottom of the connecting assembly 1, the clamping assembly 2 includes a first clamping plate 20 and a second clamping plate 21; one end of the first clamping plate 20 and the second clamping plate 21 are rotatably connected by a hinge device 4, and the other end is suitable for clamping the lifting ear; a connecting rod device 3; assembled between the first connecting member 10 and the second connecting member 11, and used to drive the first clamping plate 20 and the second clamping plate 21 to open or close.

[0055] The utility model assembles the connecting rod device 3 between the first connecting member 10 and the second connecting member 11, and the first clamping plate 20 is fixedly arranged at the bottom of the first connecting member 10, and the second clamping plate 21 is fixedly arranged at the bottom of the second connecting member 11. Since the first clamping plate 20 and the second clamping plate 21 are hingedly connected through the connecting rod device 3, when the pressing piece 6 on the connecting rod device 3 drives the connecting rod 30 to move on the connecting rod seat 5, when the connecting rod 30 approaches the second connecting member 11 through the pressing piece 6, the first clamping plate 20 and the second clamping plate 21 are opened, and when the connecting rod 30 moves away from the second connecting member 11 through the pressing piece 6, the first clamping plate 20 and the second clamping plate 21 are closed for clamping the lifting ear. Such an arrangement can ensure the safety and reliability of the first clamping plate 20 and the second clamping plate 21 during the clamping process, thereby improving the construction efficiency.

[0056] Specifically, Figure 5 As shown, Figure 5 This is the first embodiment of the utility model Figure 2 A partial enlarged view of the hinge device 4 includes a first hinge 40, a second hinge 41 and a rotating shaft 42; wherein the first hinge 40 is fixed on the first splint 20, and the second hinge 41 is fixed on the second splint 21; the first hinge 40 and the second hinge 41 are rotatably connected via the rotating shaft 42.

[0057] By setting the hinge device 4, the first clamping plate 20 and the second clamping plate 21 can rotate, so that the first clamping plate 20 and the second clamping plate 21 have and only have the freedom to rotate relative to each other. At the same time, in conjunction with the connecting rod device 3, they can be easily rotated within a certain range. When exceeding the preset range, their rotation is restricted.

[0058] See also Figure 1 and Figure 2The outer surfaces of the first connecting member 10 and the first clamping plate 20 are the same arc-shaped surface, and the outer surfaces of the second connecting member 11 and the second clamping plate 21 are the same arc-shaped surface; by adopting the above technical scheme, the connection between the first connecting member 10 and the first clamping plate 20 is continuous and smooth, without protruding sharp edges, and during the production process of the prefabricated concrete square piles, the concrete will not be scraped, only the concrete will be squeezed and rubbed, and the first clamping port 24 will not collapse; the connection between the second connecting member 11 and the second clamping plate 21 is continuous and smooth, without protruding sharp edges, and during the production process of the prefabricated concrete square piles, the concrete will not be scraped, only the concrete will be squeezed and rubbed, and the second clamping port 25 will not collapse; and the surface of the pit after removal is smooth and beautiful, and is more suitable for providing space for the hook to hook.

[0059] See also Figure 5 , Figure 6 and Figure 7 A first inclined surface 28 is formed on the top of the first clamping plate 20 , and a second inclined surface 29 is formed on the top of the second clamping plate 21 near the first clamping plate 20 . The first inclined surface 28 and the second inclined surface 29 are combined to form a V-shaped notch 7 .

[0060] The first inclined surface 28 and the second inclined surface 29 are provided to prevent the tops of the first splint 20 and the second splint 21 from abutting against each other during the opening process, thereby preventing the first splint 20 and the second splint 21 from being damaged.

[0061] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 The outer sides of the first clamping plate 20 and the second clamping plate 21 are both in an arc-shaped structure; the arc-shaped structure is also provided to facilitate the removal of the embedded lifting lug device, and the arc-shaped structure can reduce obstacles during rotation, thereby improving work efficiency.

[0062] With such arrangement, the widths of the first clamping plate 20 and the second clamping plate 21 provided by the utility model decrease successively along the insertion direction of the clamping assembly 2, thereby ensuring that the first clamping plate 20 and the second clamping plate 21 can be smoothly inserted into the concrete, and because of the structure of being larger at the top and smaller at the bottom, they can be more smoothly removed after the concrete solidifies, thereby ensuring the safety of use of the first clamping plate 20 and the second clamping plate 21.

[0063] See also Figure 6 and Figure 7A first clamping surface 22 in a vertical direction is formed on the inner side of the first clamping plate 20; a second clamping surface 23 in a vertical direction is formed on the inner side of the second clamping plate 21; when the first clamping plate 20 and the second clamping plate 21 clamp the lifting ear, the first clamping surface 22 and the second clamping surface 23 fit each other; the length direction of the first clamping surface 22 and the second clamping surface 23 are in the same direction as the length direction of the first clamping plate 20 and the second clamping plate 21; the contact area between the first clamping surface 22 and the second clamping surface 23 can be increased, so that the first clamping surface 22 and the second clamping surface 23 form a fixed contact area and are effectively fixed in the annular hole of the lifting ear, thereby improving the firmness of the lifting ear being clamped.

[0064] A first clamping opening 24 is formed on the first clamping surface 22, and a second clamping opening 25 is formed on the second clamping surface 23. The first clamping opening 24 and the second clamping opening 25 are combined to form a clamping groove 8; the shape of the clamping groove 8 matches the shape of the ear to be clamped; the shape of the clamping groove 8 is circular or elliptical, and the first clamping opening 24 and the second clamping opening 25 cooperate with each other to clamp the ear; in this embodiment, the shape of the clamping groove 8 is elliptical.

[0065] More specifically, in the embodiment of the utility model, first guide grooves 26 are formed on both sides of the first clamping surface 22, the first guide grooves 26 are located at the lower end of the first clamping port 24, and are arranged along the height direction of the first clamping plate 20, and second guide grooves 27 are formed on both sides of the second clamping surface 23, which are located at the lower end of the second clamping port 25 and are arranged along the height direction of the second clamping plate 21; the first guide grooves 26 and the second guide grooves 27 are arranged to fit the shape of the lifting ear, and the lifting ear can be limited so that it does not rotate around the clamping groove, thereby improving usage efficiency.

[0066] Furthermore, the first guide groove 26 and the second guide groove 27 are in an arc-shaped structure. In the present embodiment, a structure similar to a clamp is formed between the first clamp plate 20 and the second clamp plate 21. When in use, the lifting ear is passed through the clamping groove 8 and clamped to prevent it from falling out. Then, the whole is pre-buried in the pile body and the pile body is hardened. The self-locking is released by the connecting rod device 3, and the whole device is rotated to be removed from the pile body, so that the effect of multiple uses can be achieved.

[0067] See also Figure 3 , Figure 4 and Figure 8 The connecting rod device 3 includes a connecting rod seat 5, which is assembled on the second connecting member 11; a connecting rod 30; one end of which is fixed to the first connecting member 10, and the other end is slidably connected to the connecting rod seat 5; an adjusting plate 31; which is rotatably connected to the connecting rod 30 and the pressing member 6 respectively; the pressing member 6 is assembled between the connecting rod seat 5 and the adjusting plate 31, and is used to drive the connecting rod 30 to move on the connecting rod seat 5, thereby driving the first clamping plate 20 and the second clamping plate 21 to open or close.

[0068] A positioning groove 16 with an upward opening is formed on the second connecting member 11 , and the connecting rod seat 5 is rotatably connected in the positioning groove 16 .

[0069] See also Figure 4 , Figure 4 It is a schematic diagram of the structure of the connecting rod seat of the first embodiment of the utility model; the connecting rod seat 5 includes a base 50, and a positioning cylinder 51 and a limiting support block 52 are respectively arranged on the top of both ends of the base 50; a through hole 53 is formed in the positioning cylinder 51; a limiting groove 54 is formed on the limiting support block 52; one end of the connecting rod 30 is fixed on the first connecting member 10, and the other end passes through the through hole 53 of the positioning cylinder 51 and is rotatably connected to the adjustment plate 31.

[0070] Specifically, the base 50, the positioning tube 51 and the limiting support block 52 are fixedly connected and integrally formed, thereby improving the structural strength and overall firmness of the entire connecting rod seat 5 and further ensuring safety in use.

[0071] The end of the base 50 close to the hinge device 4 is an inclined surface 55, and the inclined surface 55 is located at the bottom of the positioning tube 51; the structure is cleverly designed to prevent the base 50 from touching the hinge device 4 when the pressing member 6 drives the connecting rod 30 to move on the connecting rod seat 5.

[0072] The distance between the positioning cylinder 51 and the limiting support block 52 is greater than the length of the adjusting plate 31. There are two adjusting plates 31, which are symmetrically arranged on both sides of the connecting rod 30, wherein the adjusting plate 31 is located at the upper end of the base 50. By adopting the above scheme, the pressing member 6 is located between the two adjusting plates 31, thereby avoiding the shaking of the pressing member 6 during use, thereby ensuring safety of use.

[0073] See also Figure 8 , Figure 8 It is a structural schematic diagram of a pressing member of an embodiment of the present utility model; the pressing member 6 includes a pressing plate 60 and a connecting plate 61, the pressing plate 60 is obliquely arranged on the connecting plate 61, wherein the connecting plate 61 is rotatably connected between the two adjustment plates 31 and the limiting groove 54.

[0074] The length of the pressing plate 60 is greater than that of the connecting plate 61 , which makes the pressing plate 60 more labor-saving when opening or closing the first clamping plate 20 and the second clamping plate 21 , thereby improving the convenience of operation.

[0075] The inclination angle of the pressing plate 60 and the connecting plate 61 is 120° to 140°. In this embodiment, the inclination angle of the pressing plate 60 and the connecting plate 61 is 135°.

[0076] The pressing plate 60 and the connecting plate 61 are fixedly connected and formed as one piece, thereby improving the structural strength and overall firmness of the entire pressing member 6 and further ensuring safety in use.

[0077] The pressing plate 60 provided in this embodiment cooperates with the connecting rod seat 5 and the adjusting plate 31. When the pressing plate 60 moves downward, the first clamping plate 20 and the second clamping plate 21 are opened. When the pressing plate 60 is lifted upward, the first clamping plate 20 and the second clamping plate 21 are closed to clamp the lifting lug, which uses the point-passing mechanism of the connecting rod to achieve self-locking. Such a configuration can ensure the safety and reliability of the first clamping plate 20 and the second clamping plate 21 during the clamping process, thereby improving the construction efficiency.

[0078] Embodiment 2:

[0079] See also Figure 9-13 , Fig. 9 This is a front view of the embedded lifting lug device of the second embodiment of the utility model; Fig.10 This is a schematic structural diagram of a pre-embedded lifting lug device according to a second embodiment of the present utility model; Fig.11 This is a schematic structural diagram of the embedded lifting lug device after the connecting rod device is removed according to the second embodiment of the utility model; Fig.12 This is a schematic diagram of the assembly of the first positioning plate, the first clamping plate and the first connecting member of the second embodiment of the utility model; Fig.13 This is a schematic diagram of the assembly of the second positioning plate, the second clamping plate and the second connecting member in the second embodiment of the utility model.

[0080] Specifically, a first positioning plate 12 is provided at the connection between the first connecting member 10 and the first clamping plate 20, and the first positioning plate 12 is horizontally placed on the first clamping plate 20. A second positioning plate 13 is provided at the connection between the second connecting member 11 and the second clamping plate 21, and the second positioning plate 13 is horizontally placed on the second clamping plate 21. The top ends of the first positioning plate 12 and the second positioning plate 13 are rotatably connected via a hinge device 4.

[0081] More specifically, in this embodiment, by providing a first positioning plate 12 and a second positioning plate 13, the first positioning plate 12 is consistent with the width of the first clamping plate 20, and the second positioning plate 13 is consistent with the width of the second clamping plate 21; the structural strength and overall firmness of the entire first clamping plate 20 and the second clamping plate 21 are further improved, and at the same time, the device of the embedded lifting ear is made safer when the embedded lifting ear is or rotated out.

[0082] The first connecting member 10 and the first positioning plate 12 are L-shaped and integrally formed, and the second connecting member 11 and the second positioning plate 13 are L-shaped and integrally formed, which improves the structural strength and overall firmness of the first connecting member 10 and the second connecting member 11 and further ensures safety in use.

[0083] The hinge device 4 includes a first hinge 40, a second hinge 41 and a rotating shaft 42; wherein, the first hinge 40 is fixed on the first positioning plate 12, and the second hinge 41 is fixed on the second positioning plate 13; the first hinge 40 and the second hinge 41 are rotatably connected via the rotating shaft 42; through the setting of the hinge device 4, the first positioning plate 12 and the second positioning plate 13 can rotate, thereby driving the first clamping plate 20 and the second clamping plate 21 to rotate, so that the first clamping plate 20 and the second clamping plate 21 have and only have the freedom to rotate relative to each other, and at the same time cooperate with the connecting rod device 3, they can be easily rotated within a certain range, and when exceeding the preset range, their rotation is restricted.

[0084] The first positioning plate 12 includes a first guiding bevel 14, which is located in the extension direction of the first inclined surface 28; the second positioning plate 13 includes a second guiding bevel 15, which is located in the extension direction of the second inclined surface 29; the first guiding bevel 14 and the second guiding bevel 15 are set so that when the first positioning plate 12 and the second positioning plate 13 are rotated through the hinge device 4, the tops of the first positioning plate 12 and the second positioning plate 13 are prevented from conflicting with each other, thereby causing damage to the first positioning plate 12 and the second positioning plate 13.

[0085] A device for pre-embedded lifting lugs can perfectly replace traditional pearl cotton or foam, and is durable, can be used multiple times, is easy to operate, and is lightweight. The surface of the hole after removal is smooth and beautiful, and it is more suitable for providing space for hooks to hook. Replacing pearl cotton or foam also reduces white pollution during production, adds to environmental protection, and can be used multiple times, reducing production costs.

[0086] For other contents of this embodiment, please refer to Embodiment 1.

[0087] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0088] Although this article uses more of the figure marks in the figures: connecting component 1, clamping component 2, connecting rod device 3, hinge device 4, connecting rod seat 5, pressing member 6, V-shaped notch 7, clamping groove 8, first connecting member 10, second connecting member 11, first positioning plate 12, second positioning plate 13, first guide inclined surface 14, second guide inclined surface 15, positioning groove 16, first clamping plate 20, second clamping plate 21, first clamping surface 22, second clamping surface 23, first clamping opening 24, second clamping opening 25, first guide groove 26, second guide groove 27, first inclined surface 28, second inclined surface 29, connecting rod 30, adjusting plate 31, first hinge 40, second hinge 41, rotating shaft 42, base 50, positioning cylinder 51, limiting support block 52, through hole 53, limiting groove 54, pressing plate 60, connecting plate 61 and other terms, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; any additional limitations interpreted as these terms are contrary to the spirit of the present invention.

Claims

1. A device for pre-embedded lifting lugs, characterized in that: include A connecting assembly (1) comprising a first connecting member (10) and a second connecting member (11) arranged opposite to each other; A clamping assembly (2); fixedly arranged at the bottom of the connecting assembly (1), the clamping assembly (2) comprises a first clamping plate (20) and a second clamping plate (21); one end of the first clamping plate (20) and the second clamping plate (21) are rotatably connected via a hinge device (4), and the other end is suitable for clamping a lifting lug; A connecting rod device (3) is assembled between the first connecting member (10) and the second connecting member (11), and is used to drive the first clamping plate (20) and the second clamping plate (21) to open or close.

2. A device for pre-embedded lifting lugs according to claim 1, characterized in that: The outer surfaces of the first connecting member (10) and the first clamping plate (20) are in the same arc-shaped surface, and the outer surfaces of the second connecting member (11) and the second clamping plate (21) are in the same arc-shaped surface.

3. The device for pre-embedded lifting lugs according to claim 1, characterized in that: A first inclined surface (28) is formed on the top of the first clamping plate (20), a second inclined surface (29) is formed on the top of the second clamping plate (21) near the first clamping plate (20), and the first inclined surface (28) and the second inclined surface (29) are combined to form a V-shaped notch (7).

4. The device for pre-embedded lifting lugs according to claim 3, characterized in that: The outer sides of the first clamping plate (20) and the second clamping plate (21) are both in an arc-shaped structure.

5. The device for pre-embedded lifting lugs according to claim 4, characterized in that: The widths of the first clamping plate (20) and the second clamping plate (21) decrease sequentially along the insertion direction of the clamping assembly (2).

6. A device for pre-embedded lifting lugs according to claim 5, characterized in that: A first clamping surface (22) in a vertical direction is formed on the inner side of the first clamping plate (20); a second clamping surface (23) in a vertical direction is formed on the inner side of the second clamping plate (21); when the first clamping plate (20) and the second clamping plate (21) clamp the lifting ear, the first clamping surface (22) and the second clamping surface (23) fit each other.

7. The device for pre-embedded lifting lugs according to claim 6, characterized in that: A first clamping opening (24) is formed on the first clamping surface (22), a second clamping opening (25) is formed on the second clamping surface (23), and the first clamping opening (24) and the second clamping opening (25) are combined to form a clamping groove (8); the shape of the clamping groove (8) matches the shape of the lifting ear to be clamped.

8. The device for pre-embedded lifting lugs according to claim 7, characterized in that: The shape of the clamping groove (8) is circular or elliptical, and the first clamping opening (24) and the second clamping opening (25) cooperate with each other to clamp the lifting lug.

9. The device for pre-embedded lifting lugs according to claim 6, characterized in that: First guide grooves (26) are formed on both sides of the first clamping surface (22), the first guide grooves (26) are located at the lower end of the first clamping opening (24) and are arranged along the height direction of the first clamping plate (20), and second guide grooves (27) are formed on both sides of the second clamping surface (23), the first guide grooves (26) are located at the lower end of the second clamping opening (25) and are arranged along the height direction of the second clamping plate (21).

10. The device for pre-embedded lifting lugs according to claim 9, characterized in that: The first guide groove (26) and the second guide groove (27) are in an arc-shaped structure.

11. The device for pre-embedded lifting lugs according to claim 1, characterized in that: The connecting rod device (3) comprises a connecting rod seat (5) assembled on the second connecting member (11); A connecting rod (30) having one end fixed to the first connecting member (10) and the other end slidably connected to the connecting rod seat (5); The adjusting plate (31) is rotatably connected to the connecting rod (30) and the pressing member (6) respectively; The pressing member (6) is assembled between the connecting rod seat (5) and the adjusting plate (31) and is used to drive the connecting rod (30) to move on the connecting rod seat (5), thereby driving the first clamping plate (20) and the second clamping plate (21) to open or close.

12. The device for pre-embedded lifting lugs according to claim 11, characterized in that: The second connecting member (11) is formed with a positioning groove (16) with an opening facing upward, and the connecting rod seat (5) is rotatably connected in the positioning groove (16).

13. The device for pre-embedded lifting lugs according to claim 11, characterized in that: The connecting rod seat (5) comprises a base (50), and a positioning cylinder (51) and a limiting support block (52) are respectively arranged at the top of both ends of the base (50); a through hole (53) is formed in the positioning cylinder (51); and a limiting groove (54) is formed on the limiting support block (52); one end of the connecting rod (30) is fixedly mounted on the first connecting member (10), and the other end passes through the through hole (53) of the positioning cylinder (51) and is rotatably connected to the adjustment plate (31).

14. A device for pre-embedded lifting lugs according to claim 13, characterized in that: The base (50), the positioning cylinder (51) and the limiting support block (52) are fixedly connected and integrally formed.

15. The device for pre-embedded lifting lugs according to claim 14, characterized in that: The end of the base (50) close to the hinge device (4) is in the form of an inclined surface (55), and the inclined surface (55) is located at the bottom of the positioning cylinder (51).

16. The device for pre-embedded lifting lugs according to claim 11, characterized in that: Two adjustment plates (31) are provided and are symmetrically arranged on both sides of the connecting rod (30), wherein the adjustment plate (31) is located at the upper end of the base (50).

17. The device for pre-embedded lifting lugs according to claim 13, characterized in that: The distance between the positioning cylinder (51) and the limiting support block (52) is greater than the length of the adjustment plate (31).

18. The device for pre-embedded lifting lugs according to claim 11, characterized in that: The pressing member (6) comprises a pressing plate (60) and a connecting plate (61), wherein the pressing plate (60) is arranged obliquely on the connecting plate (61), wherein the connecting plate (61) is rotatably connected between the two adjustment plates (31) and the limiting groove (54).

19. A device for pre-embedded lifting lugs according to claim 18, characterized in that: The length of the pressing plate (60) is greater than the length of the connecting plate (61).

20. The device for pre-embedded lifting lugs according to claim 18, characterized in that: The pressing plate (60) and the connecting plate (61) have an inclination angle of 120° to 140°.

21. The device for pre-embedded lifting lugs according to claim 18, characterized in that: The pressing plate (60) and the connecting plate (61) are fixedly connected and integrally formed.

22. The device for pre-embedded lifting lugs according to claim 3, characterized in that: A first positioning plate (12) is provided at the connection between the first connecting member (10) and the first clamping plate (20), and the first positioning plate (12) is horizontally placed on the first clamping plate (20). A second positioning plate (13) is provided at the connection between the second connecting member (11) and the second clamping plate (21), and the second positioning plate (13) is horizontally placed on the second clamping plate (21). The top ends of the first positioning plate (12) and the second positioning plate (13) are rotatably connected via a hinge device (4).

23. A device for pre-embedded lifting lugs according to claim 22, characterized in that: The first positioning plate (12) has a width consistent with that of the first clamping plate (20), and the second positioning plate (13) has a width consistent with that of the second clamping plate (21).

24. The device for pre-embedded lifting lugs according to claim 22, characterized in that: The first connecting member (10) and the first positioning plate (12) are in an L-shaped structure and are integrally formed, and the second connecting member (11) and the second positioning plate (13) are in an L-shaped structure and are integrally formed.

25. A device for pre-embedded lifting lugs according to claim 1 or 22, characterized in that: The hinge device (4) comprises a first hinge (40), a second hinge (41) and a rotating shaft (42); wherein the first hinge (40) is fixedly mounted on the first clamping plate (20), and the second hinge (41) is fixedly mounted on the second clamping plate (21); and the first hinge (40) and the second hinge (41) are rotatably connected via the rotating shaft (42).

26. The device for pre-embedded lifting lugs according to claim 22, characterized in that: The first positioning plate (12) comprises a first guiding inclined surface (14), the first guiding inclined surface (14) being located in the extension direction of the first inclined surface (28); the second positioning plate (13) comprises a second guiding inclined surface (15), the second guiding inclined surface (15) being located in the extension direction of the second inclined surface (29).

Images