Curb demolding tool

Abstract

The utility model belongs to the technical field of curb production, and relates to a curb demolding tool. The tool comprises a top frame, two side frames and two clamping discs. The upper ends of the two frames are rotationally connected to the two ends of the top frame correspondingly. The two clamping discs are rotationally connected to the lower ends of the two frames correspondingly, and the two clamping discs are oppositely arranged between the two frames. When the two frames are both vertical, the distance between the two clamping discs is equal to the distance between the two splicing surfaces of the curb; three pins are arranged on each clamping disc in a protruding mode, and the outer diameter of each pin is matched with the inner diameter of an unthreaded hole in the curb splicing face. When the two clamping discs abut against the two splicing faces of the curb respectively, the pins on the two clamping discs are inserted into the unthreaded holes in the two splicing faces of the curb in a one-to-one correspondence mode. According to the utility model, the demolding difficulty of the curb can be reduced, the curb is prevented from being damaged during demolding, the labor intensity of workers is reduced, and the demolding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of curbstone production, and in particular relates to a curbstone demoulding tool. Background Art

[0002] In the construction of immersed tube tunnels, in order to prevent vehicles from directly hitting the middle wall and to meet the requirements of pipeline layout, it is necessary to install curbstones on the middle wall of the lanes on both sides of the tunnel. The curbstones are made up of multiple curbstones. The structure of a single curbstone is as follows: Figure 1 As shown, it is heavy and large in size; the curbstone 1 is a special-shaped structure, and its cross-section is an inverted T-shape as a whole, with a base 101, a vertical plate 102 protruding from the top surface of the base 101, and a flange 103 protruding from the outside of the base 101. The two side surfaces of the curbstone 1 in the length direction are splicing surfaces 104 for splicing with other curbstones; when the curbstone 1 is prefabricated using a mold, the curbstone 1 is usually cast and formed by a molding method in which the bottom surface of the curbstone 1 faces upward and the vertical plate 102 faces downward (the mold opening is on top, that is, the concrete casting port is on top), and manual demoulding is started after the demoulding strength is reached; the traditional demoulding method is to first turn over the mold and the molded curbstone 1 together, so that the mold opening faces downward and is buckled on the workbench, and then lift the mold perpendicular to the workbench direction to achieve demoulding of the curbstone 1. However, this traditional demoulding method is difficult to demould, has high labor intensity for workers, and has low demoulding efficiency. In addition, if the mold deviates during the lifting process, it is easy to bump into and damage the curb. Utility Model Content

[0003] In view of the deficiencies existing in the related art, the utility model provides a curbstone demoulding tooling, aiming to reduce the demoulding difficulty of the curbstone, avoid damage to the curbstone during demoulding, reduce the labor intensity of workers, and improve the demoulding efficiency.

[0004] The utility model provides a curbstone demoulding tool, which is used for demoulding a curbstone that has been cast in a mold. Three non-collinear light holes are formed on two joint surfaces of the curbstone. The curbstone demoulding tool comprises:

[0005] Top frame;

[0006] Two side frames, the upper ends of the two side frames are rotatably connected to the two ends of the top frame respectively, and the top frame and the two side frames are kept coplanar;

[0007] Two clamping plates are rotatably connected to the lower ends of the two frame frames, and the two clamping plates are relatively arranged between the two frame frames; the axial direction of the clamping plates is perpendicular to the length direction of the frame frames in which they are located, and the clamping plates rotate around their axes; when the two frame frames are both in a vertical state, the distance between the two clamping plates is equal to the distance between the two joint surfaces of the curbstone; three pins are convexly provided on the side of each clamping plate away from the frame frames in which they are located, and the relative position relationship between the three pins is consistent with the relative position relationship between the three light holes on the joint surfaces of the curbstone, and the outer diameter of the pins is adapted to the inner diameter of the light holes; when the two clamping plates are respectively against the two joint surfaces of the curbstone, the pins on the two clamping plates are inserted into the light holes on the two joint surfaces of the curbstone one by one.

[0008] In some of the embodiments, the curb demolding tooling also includes a first support and a second support, which are respectively connected to the middle parts of the two frame lengths and are relatively arranged between the two frame frames; the first support is provided with a first locking member on the side away from the frame where it is located, and the second support is provided with a second locking member on the side away from the frame where it is located; when the two clamping plates are respectively against the two joint surfaces of the curb, the first locking member and the second locking member are connected to each other so that the two clamping plates clamp the curb.

[0009] In some embodiments, the first locking member is a locking shaft, the second locking member is a locking sleeve, and the locking sleeve is slidably connected to the second support; an end of the locking shaft facing the locking sleeve is provided with an external thread, and an end of the locking sleeve facing the locking shaft is provided with an internal thread that matches the external thread of the locking shaft.

[0010] In some of the embodiments, the curb demolding tool also includes a crank; the end of the locking sleeve away from the locking shaft passes through the frame and is connected to the crank, and the locking sleeve is driven to rotate by the crank to connect or disconnect it with the locking shaft.

[0011] In some embodiments, a spring positioning pin facing the clamping disk is installed at the lower part of the frame, and a first positioning hole matched with the spring positioning pin is opened on the clamping disk.

[0012] In some of the embodiments, a second positioning hole having the same size as the first positioning hole is further formed on the clamping disk, and the second positioning hole and the first positioning hole are symmetrically arranged relative to the axis of the clamping disk.

[0013] In some of the embodiments, the curb demolding tooling also includes two sets of adapter units to rotatably connect the two side frames to the top frame respectively; each set of adapter units includes two adapter plates relatively arranged on both sides of the end of the top frame, one end of the adapter plate is fixedly connected to the side frame, and the other end is rotatably connected to the top frame.

[0014] In some of the embodiments, the clamping disk includes a main disk body and three clamping arms protruding outside the main disk body, the three clamping arms respectively extend in the radial direction of the main disk body; the three pins are respectively located on the three clamping arms.

[0015] In some of these embodiments, the pin is a conical pin.

[0016] Based on the above technical scheme, the curb demolding tooling in the embodiment of the utility model can solve the shortcomings of the traditional curb demolding method, significantly reduce the difficulty of curb demolding, avoid damage to the curb during demolding, reduce the labor intensity of workers, and improve demolding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the curb stone;

[0019] Figure 2 It is a structural schematic diagram of the curbstone demoulding tooling of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the clamping plate in the curbstone demoulding tooling of the utility model;

[0021] Figure 4 It is a structural cross-sectional view of the connection between the second support and the locking sleeve in the curbstone demoulding tooling of the utility model;

[0022] Figure 5 It is a schematic diagram of using the curbstone demoulding tooling of the utility model to lift the curbstone out of the mold;

[0023] Figure 6 It is a schematic diagram of using the curb demoulding tooling of the utility model to flip the curb after being lifted out.

[0024] In the figure: 1. curbstone; 101. base; 102. vertical plate; 103. flange; 104. joint surface; 105. light hole; 2. top frame; 3. frame; 4. clamping plate; 41. main plate body; 42. clamping arm; 43. rotating shaft; 44. first positioning hole; 45. second positioning hole; 5. pin; 6. first support; 7. second support; 8. locking shaft; 9. locking sleeve; 10. plate head; 11. crank; 12. spring positioning pin; 13. adapter plate. DETAILED DESCRIPTION

[0025] 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. 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.

[0026] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "top", "bottom", "inside", "outside", "front", "back", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection 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.

[0029] refer to Figure 1-Figure 6 As shown, the utility model provides a curbstone demoulding tooling for demoulding a curbstone 1 that has been cast in a mold; it should be noted that since the curbstone 1 of the immersed tube tunnel is a special-shaped structure, when the curbstone 1 is prefabricated using a mold, the curbstone 1 is cast and molded in a molding manner with the bottom surface facing upward and the vertical plate facing downward (the mold opening faces upward), and demoulding begins after the demoulding strength is reached; and three non-collinear light holes 105 have been formed on the two splicing surfaces 104 of the curbstone 1, and the three light holes 105 on each splicing surface 104 are respectively located in three directions of the T-shaped section of the curbstone.

[0030] The curbstone demoulding tooling includes a top frame 2, two side frames 3 and two clamping plates 4. The upper ends of the two side frames 3 are rotatably connected to the two ends of the top frame 2, so that the two side frames 3 can rotate around the top frame 2, and the top frame 2 and the two side frames 3 always keep the same plane. Through the rotational connection between the two side frames 3 and the top frame 2, the distance between the lower ends of the two side frames 3 can be adjusted.

[0031] The two clamping plates 4 are rotatably connected to the lower ends of the two frames 3, respectively. The two clamping plates 4 are arranged oppositely and are located between the two frames 3. The axial direction of the clamping plates 4 is perpendicular to the length direction of the frame 3 where they are located, and the clamping plates 4 rotate around their own axis. When the two frames 3 are both in a vertical state, the distance between the two clamping plates 4 is equal to the distance between the two joint surfaces 104 of the curb 1. Three pins 5 are convexly provided on the side of each clamping plate 4 away from the frame 3 where it is located. The axial direction of the pins 5 is consistent with the axial direction of the clamping plate 4, and the outer diameter of the pins 5 is adapted to the inner diameter of the light hole 105; the relative position relationship between the three pins 5 is consistent with the relative position relationship between the three light holes 105 on the joint surface 104 of the curb 1. When the two clamping plates 4 are respectively against the two joint surfaces 104 of the curb 1, the pins 5 on the two clamping plates 4 are all inserted into the light holes 105 on the two joint surfaces 104 of the curb 1 in a one-to-one correspondence.

[0032] Further integration Figure 5 , Figure 6 To illustrate, when the demoulding tool of this embodiment is used to demould the curbstone 1,

[0033] First, after the concrete of the curbstone 1 cast in the mold reaches the demoulding strength, the templates on the mold are opened outward to expose the three non-collinear light holes 105 formed on the two joint surfaces 104 of the curbstone 1;

[0034] Then, the top frame 2 is hoisted by a crane to lift the demoulding tooling as a whole, and it is moved to the top of the mold and then lowered, and the two side frames 3 are rotated respectively so that the pins 5 on the two clamping plates 4 are inserted into the light holes 105 on the two joint surfaces 104 of the curb 1 one by one, and the two clamping plates 4 are respectively against the two joint surfaces 104 of the curb 1 and fit tightly;

[0035] Then, the curbstone 1 is lifted vertically by a crane and a demoulding tool to be lifted out of the mold, and then transferred to the top of the storage area outside the mold; it should be noted that after the curbstone 1 is lifted out of the mold, the mold can be closed to cast the next curbstone 1, thereby significantly improving the production efficiency of the curbstone 1;

[0036] Finally, the curb 1 is pushed manually so that it rotates around the axis of the clamping disk 4 under the action of the clamping disk 4 to realize the flipping of the curb 1; during the flipping process of the curb 1, the height of the curb 1 is lowered while flipping until the vertical plate of the curb 1 is upright and the bottom surface of the curb 1 is horizontal, and then the curb 1 is stably placed on the ground of the storage area; the two frame frames 3 are rotated to make the clamping disk 4 and the pins 5 thereon separate from the curb 1, and the entire demoulding tooling is moved to demould the next curb 1 in the mold.

[0037] The above-mentioned schematic embodiment, through the arrangement of two rotatable frames 3, two clamping plates 4 in the frames 3 and pins 5 on the clamping plates 4, enables the demolding tooling to easily and quickly demold the curbstone 1 that has been cast in the mold. Compared with the traditional demolding method that requires flipping the mold, the curbstone demolding tooling of this embodiment can significantly reduce the demolding difficulty of the curbstone 1, avoid damage to the curbstone 1 during demolding, reduce the labor intensity of workers, and improve demolding efficiency.

[0038] refer to Figure 2 , Figure 4-Figure 6 As shown, in some embodiments, the curb demoulding tooling further includes a first support 6 and a second support 7, which are respectively connected to the middle of the two frames 3 in the length direction and are relatively arranged between the two frames 3. The first support 6 is provided with a first locking member on the side away from the frame 3 where it is located, and the extension direction of the first locking member is perpendicular to the length direction of the frame 3 where the first support 6 is located; the second support 7 is provided with a second locking member on the side away from the frame 3 where it is located, and the extension direction of the second locking member is perpendicular to the length direction of the frame 3 where the second support 7 is located. When the two clamping plates 4 are respectively against the two splicing surfaces 104 of the curb 1, the first locking member and the second locking member are connected and locked to each other, so that the two clamping plates 4 on the two frames 3 clamp the curb 1. This exemplary embodiment ensures that the two clamping plates 4 can reliably clamp the curb 1 through the arrangement of the first locking member and the second locking member, and prevents the curb 1 from loosening during lifting, transfer, and flipping.

[0039] refer to Figure 2 , Figure 4-Figure 6As shown, in some embodiments, the first locking member is a locking shaft 8, and the axial direction of the locking shaft 8 is perpendicular to the length direction of the frame 3 where the first support 6 is located; the second locking member is a locking sleeve 9, and the axial direction of the locking sleeve 9 is perpendicular to the length direction of the frame 3 where the second support 7 is located; it should be noted that when both frames 3 are in a vertical state, the locking shaft 8 and the locking sleeve 9 are coaxially arranged. The locking sleeve 9 penetrates the second support 7 and is slidably connected to the second support 7, that is, the locking sleeve 9 can reciprocate relative to the second support 7 along its axial direction, and the locking sleeve 9 can also rotate around its own axis; the locking sleeve 9 is provided with a disc head 10 at one end close to the second support 7, and it can be understood that the outer diameter of the disc head 10 is larger than the aperture of the through hole of the locking sleeve 9 on the second support 7. The end of the locking shaft 8 facing the locking sleeve 9 is provided with an external thread, and the end of the locking sleeve 9 facing the locking shaft 8 is provided with an internal thread adapted to the external thread of the locking shaft 8. When the two clamping discs 4 are respectively against the two joint surfaces 104 of the curb 1, the locking sleeve 9 is rotated to be screwed onto the locking shaft 8, so that the two clamping discs 4 clamp the curb 1; the disc head 10 on the locking sleeve 9 is used to limit the screw connection length between the locking sleeve 9 and the locking shaft 8. This exemplary embodiment refines the structural design of the first locking member and the second locking member, and ensures that the two clamping discs 4 can reliably clamp the curb 1 by means of threaded connection.

[0040] refer to Figure 2 , Figure 4-Figure 6 As shown, in some embodiments, the curb demoulding tool further includes a crank 11. One end of the locking sleeve 9 that is away from the locking shaft 8 passes through the frame 3 to be connected to the crank 11, and the locking sleeve 9 is driven to rotate by the crank 11 to connect or disconnect with the locking shaft 8. This exemplary embodiment facilitates adjustment of the connection state between the locking sleeve 9 and the locking shaft 8 through the provision of the crank 11.

[0041] refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, in some embodiments, the lower part of the frame 3 is also equipped with a spring positioning pin 12 facing the clamping plate 4, and the clamping plate 4 is provided with a first positioning hole 44 adapted to the spring positioning pin 12. Further explanation, after the two clamping plates 4 of the demoulding tooling are against the two joint surfaces 104 of the curb 1 and the pin 5 is inserted into the light hole 105 on the joint surface 104 of the curb 1, the spring positioning pin 12 is inserted into the first positioning hole 44, thereby preventing the clamping plate 4 from rotating, and further preventing the curb 1 from rotating or shaking during the lifting and transfer process, ensuring that the curb 1 is demoulded smoothly without being damaged by bumps, ensuring that the curb 1 is transferred smoothly, and improving the operational safety at the same time.

[0042] refer to Figure 3As shown, in some embodiments, the clamping plate 4 is further provided with a second positioning hole 45 of the same size as the first positioning hole 44, and the second positioning hole 45 and the first positioning hole 44 are symmetrically arranged relative to the axis of the clamping plate 4. Further, when the transferred curbstone 1 needs to be flipped and placed, the spring positioning pin 12 is pulled outward to disengage it from the first positioning hole 44 to flip the curbstone 1; when the curbstone 1 is flipped to a level bottom surface, the spring positioning pin 12 is inserted into the second positioning hole 45 to lock the flipped state of the curbstone 1, thereby ensuring that the flipped curbstone 1 can be stably placed on the ground without being damaged by bumps, while improving the operational safety.

[0043] refer to Figure 2 , Figure 5 As shown, in some embodiments, the curb demoulding tooling further includes two sets of adapter units to respectively rotatably connect the two side frames 3 to the top frame 2. Each set of adapter units includes two adapter plates 13 oppositely arranged at both sides of the end of the top frame 2, one end of the adapter plate 13 is fixedly connected to the side frame 3, and the other end is rotatably connected to the top frame 2, thereby realizing the rotatable connection between the side frame 3 and the top frame 2.

[0044] refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, in some embodiments, the clamping plate 4 includes a main plate body 41 and three clamping arms 42 protruding from the main plate body 41; the main plate body 41 is rotatably connected to the frame 3 through a rotating shaft 43, and the three clamping arms 42 extend radially along the main plate body 41; and the three pins 5 are respectively arranged on the three clamping arms 42. This exemplary embodiment simplifies the structural design of the clamping plate 4, thereby realizing a lightweight design of the demoulding tooling.

[0045] In some embodiments, the pin 5 is a conical pin; when the two clamping plates 4 clamp the curb 1, the conical pin can be more easily inserted into the light hole 105 on the joint surface 104 of the curb 1.

[0046] In summary, the curbstone demoulding tooling of the utility model can solve the shortcomings of the traditional curbstone demoulding method, significantly reduce the demoulding difficulty of the curbstone, avoid damage to the curbstone during demoulding, reduce the labor intensity of workers, and improve the demoulding efficiency.

[0047] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0048] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A curbstone demoulding tool, used for demoulding a curbstone cast in a mold, wherein three non-collinear light holes are formed on two joint surfaces of the curbstone, characterized in that: The curb demoulding tooling comprises: Top frame; Two side frames, the upper ends of the two side frames are rotatably connected to the two ends of the top frame respectively, and the top frame and the two side frames are kept coplanar; Two clamping plates are rotatably connected to the lower ends of the two frame frames, and the two clamping plates are relatively arranged between the two frame frames; the axial direction of the clamping plate is perpendicular to the length direction of the frame frame in which it is located, and the clamping plate rotates around its axis; when the two frame frames are in a vertical state, the distance between the two clamping plates is equal to the distance between the two joint surfaces of the curb stone; three pins are convexly provided on the side of each clamping plate away from the frame in which it is located, and the relative position relationship between the three pins is consistent with the relative position relationship between the three light holes on the joint surface of the curb stone, and the outer diameter of the pins is adapted to the inner diameter of the light holes; when the two clamping plates are respectively against the two joint surfaces of the curb stone, the pins on the two clamping plates are inserted into the light holes on the two joint surfaces of the curb stone one by one.

2. The curbstone demoulding tooling according to claim 1, characterized in that: The curbstone demolding tooling also includes a first support and a second support, which are respectively connected to the middle parts of the two frame length directions and are relatively arranged between the two frame frames; the first support is provided with a first locking member on the side away from the frame where it is located, and the second support is provided with a second locking member on the side away from the frame where it is located; when the two clamping plates are respectively against the two joint surfaces of the curbstone, the first locking member and the second locking member are connected to each other so that the two clamping plates clamp the curbstone.

3. The curbstone demoulding tooling according to claim 2, characterized in that: The first locking member is a locking shaft, the second locking member is a locking sleeve, and the locking sleeve is slidably connected to the second support; an end of the locking shaft facing the locking sleeve is provided with an external thread, and an end of the locking sleeve facing the locking shaft is provided with an internal thread that matches the external thread of the locking shaft.

4. The curbstone demoulding tooling according to claim 3, characterized in that: The curb demoulding tool also includes a crank; one end of the locking sleeve away from the locking shaft passes through the frame and is connected to the crank, and the locking sleeve is driven to rotate by the crank to connect or disconnect with the locking shaft.

5. The curbstone demoulding tooling according to claim 1, characterized in that: A spring positioning pin facing the clamping disk is arranged at the lower part of the frame, and a first positioning hole matched with the spring positioning pin is opened on the clamping disk.

6. The curbstone demoulding tooling according to claim 5, characterized in that: The clamping disk is also provided with a second positioning hole having the same size as the first positioning hole, and the second positioning hole and the first positioning hole are symmetrically arranged relative to the axis of the clamping disk.

7. The curbstone demoulding tooling according to claim 1, characterized in that: The curbstone demolding tooling also includes two groups of adapter units to rotatably connect the two side frames to the top frame respectively; each group of the adapter units includes two adapter plates relatively arranged on both sides of the end of the top frame, one end of the adapter plate is fixedly connected to the side frame, and the other end is rotatably connected to the top frame.

8. The curbstone demoulding tooling according to claim 1, characterized in that: The clamping disk comprises a main disk body and three clamping arms protruding from the main disk body, the three clamping arms respectively extending in the radial direction of the main disk body; the three pins are respectively located on the three clamping arms.

9. The curbstone demoulding tool according to claim 1, characterized in that: The pin is a conical pin.

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