A connecting device and connecting system for a central bracket of an inner mold

Abstract

This utility model discloses a connecting device and system for a central support of an inner mold. The connecting device includes a connecting rod and an end connector. The first end of the connecting rod has a first connecting structure for connecting to the central support of the inner mold, and the end connector has a second connecting structure for connecting to the end mold. The second end of the connecting rod has a horizontal first plate, and the end connector has a horizontal second plate. The first plate and the second plate are connected by a first fastener. This utility model relates to the field of box girder forming technology. By setting horizontal first and second plates, the connection method between the connecting rod and the end connector is changed from vertical to horizontal, reducing the connection height of the connecting rod, which is effectively applicable to inner molds with limited mold closing space.

Description

Technical Field

[0001] This utility model relates to the field of box girder forming technology, specifically a connecting device and connecting system for the middle bracket of the inner mold. Background Technology

[0002] During box girder construction, to ensure the stability of the central support frame, it needs to be fixedly connected to the end formwork and bottom formwork, forming a whole through the end formwork. During construction, the inner formwork slides along the rollers on the upper part of the central support frame and is moved out through the end formwork. Currently, the connection between the central support frame and the end formwork is mainly achieved by welding a vertical connecting plate into the inner cavity of the end formwork, and then using connecting rods to connect the plate to the support frame; the rods are fixed to the vertical plate by two rows of vertically distributed bolts. However, this connection method occupies a large amount of space, so it is only suitable for large box girders with ample space for formwork removal. When the beam size becomes smaller and the space for formwork removal is limited, setting up a vertical connecting plate will hinder the smooth movement of the inner formwork.

[0003] Furthermore, the existing connection method presents operational challenges. Both the connecting rod and the vertical connecting plate use closed holes, requiring the bolt to be fully inserted into the hole for connection. This results in a cumbersome and time-consuming installation process, and the bolts are prone to being lost. Moreover, bolted connections have stringent requirements for installation height and space; after the bolt passes through the closed hole, sufficient operating space is needed for the nut to be fitted onto the bolt. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a connecting device and system for the central support of an inner mold, which can reduce the connection height of the connecting rods and is effectively applicable to inner molds with limited mold closing space.

[0005] To achieve the above objectives, this utility model provides a connecting device for the middle bracket of an inner mold, including a connecting rod and an end connector;

[0006] The first end of the connecting rod is provided with a first connecting structure for connecting the middle bracket, and the end connector is provided with a second connecting structure for connecting the end mold.

[0007] The second end of the connecting rod is provided with a horizontal first plate, and the end connector is provided with a horizontal second plate. The first plate and the second plate are connected by a first fastener.

[0008] In one embodiment, the second plate has a first opening groove at one end facing away from the connecting rod, and the first plate has a first through hole at the position corresponding to the first opening groove.

[0009] The first fastener includes a threaded first screw and a first nut, the shank of the first screw passes through the first opening slot and the first through hole, and the nut of the first screw and the first nut abut against the first plate and the second plate, respectively.

[0010] In one embodiment, the second plate has a first opening groove at one end facing away from the connecting rod, and the first plate has a first through hole at the position corresponding to the first opening groove.

[0011] The first fastener includes a first screw, a first nut, a first cam, a first handle, and a first elastic washer. The first nut is threaded onto the first screw, the first elastic washer is sleeved on the first screw, the first cam is hinged to the end of the first screw, the first elastic washer is located between the first nut and the first cam, and the first handle is connected to the side of the first cam.

[0012] The first screw passes through the first opening slot and the first through hole, and the first elastic washer and the first nut respectively abut against the first plate and the second plate.

[0013] In one embodiment, a second fastener is further connected between the first plate and the second plate.

[0014] In one embodiment, the side of the second plate is provided with a second opening groove, and the opening of the second opening groove is perpendicular to the first opening groove. The first plate is provided with a second through hole corresponding to the position of the second opening groove.

[0015] The second fastener includes a threaded second screw and a second nut. The shank of the second screw passes through the second opening slot and the second through hole. The nut of the second screw and the second nut abut against the first plate and the second plate, respectively.

[0016] In one embodiment, the side of the second opening groove closest to the first opening groove has a flared structure.

[0017] In one embodiment, the side of the second plate is provided with a second opening groove, and the opening of the second opening groove is perpendicular to the first opening groove. The first plate is provided with a second through hole corresponding to the position of the second opening groove.

[0018] The second fastener includes a second screw, a second nut, a second cam, a second handle, and a second elastic washer. The second nut is threaded onto the second screw, the second elastic washer is sleeved on the second screw, the second cam is hinged to the end of the second screw, the second elastic washer is located between the second nut and the second cam, and the second handle is connected to the side of the second cam.

[0019] The second screw passes through the second opening slot and the second through hole, and the second elastic washer and the second nut abut against the first plate and the second plate, respectively.

[0020] In one embodiment, the end connector includes a support plate and a reinforcing plate, the second plate is disposed on the top of the support plate, and the reinforcing plate is connected between the support plate and the second plate;

[0021] The second connection structure is provided on the support plate and / or the reinforcing plate.

[0022] In one embodiment, the first connecting structure includes a third plate disposed at the first end of the connecting rod, and a third through hole disposed on the third plate.

[0023] To achieve the above objectives, this utility model also provides an inner mold middle bracket connection system, including a middle bracket, an end mold and the above-mentioned connection device;

[0024] The connecting rod is connected to the central bracket through the first connecting structure, and the end connector is connected to the inner wall of the end mold through the second connecting structure.

[0025] Compared with the prior art, the present invention has the following beneficial technical effects:

[0026] 1. This utility model adjusts the connection method between the connecting rod and the end connector from vertical to horizontal by setting a horizontal first plate and a second plate, thereby reducing the connection height of the connecting rod and making it effective for inner molds with limited mold closing space;

[0027] 2. In the preferred embodiment of this utility model, a first fastener consisting of a first screw and a first nut is connected by setting a first opening groove. The first nut can be connected to the first screw before being inserted into the first opening groove, which reduces the space requirements for installation height of the bolt connection. In addition, when not in use, the first screw and the first nut can be directly installed on the first plate of the connecting rod without removal. When in use, they can be tightened directly, which can effectively prevent the bolt from being lost.

[0028] 3. In a preferred embodiment of this utility model, a second opening groove perpendicular to the first opening groove can also be provided on the second plate, and a second fastener can be provided to connect the first plate and the second plate, so that the first opening groove limits the connecting rod in the left-right direction, the second opening groove limits the connecting rod in the front-back direction, and the first fastener and the second fastener limit the connecting rod in the up-down direction, thereby ensuring the connection stability between the connecting rod and the end connector. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 This is a front view of the overall structure of the connecting device in Embodiment 1 of this utility model;

[0031] Figure 2 This is a partial isometric view of the connecting device in Embodiment 1 of this utility model;

[0032] Figure 3 This is a partial front view of the connecting device in Embodiment 1 of this utility model;

[0033] Figure 4 This is an isometric view of the end connector in Embodiment 1 of this utility model;

[0034] Figure 5 This is a bottom view of the end connector in Embodiment 1 of this utility model;

[0035] Figure 6 This is an assembly diagram of the second fastener in Embodiment 1 of this utility model;

[0036] Figure 7 This is a schematic diagram of another embodiment of the first fastener in Embodiment 1 of this utility model;

[0037] Figure 8 This is a schematic diagram of the connection system in Embodiment 2 of this utility model;

[0038] Figure 9 This is a partial schematic diagram of the upper module of the connection system in Embodiment 2 of this utility model.

[0039] Reference numerals: Connecting rod 1, First plate 101, First through hole 102, Second through hole 103, Third plate 104, Third through hole 105, End connector 2, Second plate 201, First opening slot 202, Second opening slot 203, Support plate 204, Reinforcing plate 205, Middle bracket 3, End mold 4, Inner mold 5, First fastener 6, First screw 601, First nut 602, First threaded rod 603, First cam 604, First handle 605, First elastic washer 606, Second fastener 7, Second screw 701, Second nut 702.

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0046] Example 1

[0047] like Figure 1 , Figure 2 The diagram shows a connecting device for a central support of an inner mold disclosed in this embodiment, which mainly includes a connecting rod 1 and an end connector 2. The first end of the connecting rod 1 has a first connecting structure for connecting the central support 3 of the inner mold 5; the end connector 2 has a second connecting structure for connecting the end mold 4. Specifically, the second end of the connecting rod 1 has a horizontal first plate 101, and the end connector 2 has a horizontal second plate 201. During connection, the first plate 101 and the second plate 201 overlap and are connected by a first fastener 6. That is, by setting the horizontal first plate 101 and the second plate 201, the connection method between the connecting rod 1 and the end connector 2 is changed from a vertical connection to a horizontal connection, thereby reducing the connection height of the connecting rod 1 and making it effectively applicable to the inner mold 5 where the mold closing space is limited.

[0048] refer to Figures 3 to 5 The second plate 201 has a first opening groove 202 at one end facing away from the connecting rod 1, and the first plate 101 has a first through hole 102 at the position corresponding to the first opening groove 202. The first fastener 6 includes a first screw 601 and a first nut 602 that are threaded together. The screw shank of the first screw 601 passes through the first opening groove 202 and the first through hole 102. The nut of the first screw 601 and the first nut 602 abut against the first plate 101 and the second plate 201 respectively, thereby connecting and fixing the first plate 101 and the second plate 201.

[0049] During connection, the first screw 601 can be passed through the first through hole 102, and the first nut 602 can be threaded onto the screw 601. Then, the screw 601 can be inserted into the first slot 202 and the nut 602 tightened. This means that the initial assembly of the first plate 101, the first screw 601, and the first nut 602 is completed before being inserted into the first slot 202. When the screw 601 is inserted into the first slot 202, there is no need to reserve installation space for the first nut 602, reducing the installation height space requirement for the first fastener 6. Furthermore, when not in use, the first screw 601 and the first nut 602 can be directly installed on the first plate 101 of the connecting rod 1 without removal; they can be tightened directly during use, effectively preventing bolt loss. In specific applications, the first screw 601 can also be directly welded onto the first plate 101 to further prevent bolt loss.

[0050] It is worth noting that, since the first fastener 6 fixes the first plate 101 and the second plate 201 through the first opening slot 202, and the opening of the first opening slot 202 faces away from the connecting rod 1, the movement of the connecting rod 1 along the opening direction of the first opening slot 202 is unrestricted, which can easily lead to an unstable connection. Therefore, in this embodiment, as a preferred embodiment, a second fastener 7 is also connected between the first plate 101 and the second plate 201 to improve the connection stability.

[0051] In the specific implementation process, the side of the second plate 201 is provided with a second opening groove 203, and the opening of the second opening groove 203 is perpendicular to the first opening groove 202. The first plate 101 is provided with a second through hole 103 corresponding to the position of the second opening groove 203. The second fastener 7 includes a threaded second screw 701 and a second nut 702. The screw shank of the second screw 701 passes through the second opening groove 203 and the second through hole 103. The nut of the second screw 701 and the second nut 702 abut against the first plate 101 and the second plate 201 respectively, thereby connecting and fixing the first plate 101 and the second plate 201. With the cooperation of the first fastener 6 and the first opening groove 202, the first opening groove 202 limits the connecting rod 1 in the left-right direction, the second opening groove 203 limits the connecting rod 1 in the front-back direction, and the first fastener 6 and the second fastener 7 limit the connecting rod 1 in the up-down direction, ensuring the connection stability between the connecting rod 1 and the end connector 2.

[0052] During connection, first pass the screws of the first screw 601 and the second screw 701 through the first through hole 102 and the second through hole 103 respectively, and then thread the first nut 602 and the second nut 702 onto the screws of the first screw 601 and the second screw 701 respectively. Then, first insert the screw of the first screw 601 into the first opening slot 202, and then rotate the connecting rod 1 to insert the screw of the second screw 701 into the second opening slot 203, i.e. Figure 6 As shown. Finally, tighten the first nut 602 and the second nut 702. Since the second screw 701 needs to be rotated into the second opening slot 203, in this embodiment, the side of the second opening slot 203 near the first opening slot 202 is preferably flared to avoid interference when the second screw 701 is rotated into the second opening slot 203.

[0053] It is worth noting that, in specific applications, the first fastener 6 is not limited to using... Figure 3 The bolt structure shown can also be a quick-release structure. For example... Figure 7 As shown, the first fastener 6 includes a first screw 603, a first nut 602, a first cam 604, a first handle 605, and a first elastic washer 606. The first screw 603 includes a coaxial threaded section and a smooth section. The first nut 602 is threaded onto the threaded section of the first screw 603. The first elastic washer 606 is sleeved on the smooth section of the first screw 603. The first cam 604 is hinged to the end of the smooth section of the first screw 603, that is, the first elastic washer 606 is located between the first nut 602 and the first cam 604. The first handle 605 is connected to the side of the first cam 604. During connection, the first screw 603 passes through the first opening slot 202 and the first through hole 102. The first elastic washer 606 and the first nut 602 abut against the first plate 101 and the second plate 201, respectively. Simultaneously, the first handle 605 rotates the first cam 604, causing the first cam 604 to press against the first elastic washer 606, thereby fixing the first plate 101 and the second plate 201. Disassembly is achieved simply by rotating the first handle 605 in the opposite direction, thus effectively improving connection efficiency.

[0054] Similarly, the second fastener 7 can also be configured as a quick-release structure, that is, the second fastener 7 includes a second screw, a second nut, a second cam, a second handle, and a second elastic washer. The second screw includes a coaxial threaded section and a smooth shaft section. The second nut is threaded onto the threaded section of the second screw. The second elastic washer is fitted onto the smooth shaft section of the second screw. The second cam is hinged to the end of the smooth shaft section of the second screw, that is, the second elastic washer is located between the second nut and the second cam. The second handle is connected to the side of the second cam. During connection, the second screw passes through the second opening slot 203 and the second through hole 103. The second elastic washer and the second nut abut against the first plate 101 and the second plate 201, respectively. At the same time, by rotating the second cam through the second handle, the second cam presses against the second elastic washer, thereby fixing the first plate 101 and the second plate 201. During disassembly, simply rotate the second handle in the opposite direction, thus effectively improving the connection efficiency. In addition, even if both the first fastener 6 and the second fastener 7 are configured as quick-release structures, the connection process still adopts the same quick-release method. Figure 6 The connection method shown will not be described in detail in this embodiment.

[0055] In this embodiment, the end connector 2 includes a support plate 204 and a reinforcing plate 205. A second plate 201 is disposed on the top of the support plate 204, and the reinforcing plate 205 is connected between the support plate 204 and the second plate 201. The reinforcing plate 205 is fixed to the support plate 204 and the second plate 201 by welding. The support plate 204 and the second plate 201 can be fixed by welding or can be integrally formed bent plates. In specific implementation, the second connection structure is provided on the support plate 204 and / or the reinforcing plate 205. For example, the bottom ends of the support plate 204 and the reinforcing plate 205 can be directly used as the second connection structure, and the bottom ends of the support plate 204 and the reinforcing plate 205 are directly welded to the end mold 4 during connection. Alternatively, through holes can be provided on the support plate 204 and the reinforcing plate 205 as the second connection structure, and the end connector 2 can be fixed to the end mold 4 by bolts during connection.

[0056] In this embodiment, the first plate 101 can be connected to the second end of the connecting rod 1 by welding or bolting. The first connection structure includes a third plate 104 disposed at the first end of the connecting rod 1, and a third through hole 105 disposed on the third plate 104. At the same time, a through hole is provided on the middle bracket 3 of the inner mold 5, and the third plate 104 is connected and fixed to the middle bracket 3 of the inner mold 5 by bolts.

[0057] Example 2

[0058] like Figure 8 , Figure 9The diagram shows a central support connecting system for an inner mold disclosed in this embodiment, which includes a central support 3, an end mold 4, and a connecting device. The connecting rod 1 is connected to the central support 3 through a first connecting structure, and the end connector 2 is connected to the inner wall of the end mold 4 through a second connecting structure.

[0059] Since the connection between the connecting rod 1 and the end connector 2 is a transverse connection, the connection device can be set up even if the inner cavity size of the end mold 4 is small.

[0060] The above description is only a preferred embodiment of the present utility model and does not limit the scope of protection of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A connecting device for an inner mold center carrier, characterized in that It includes connecting rod (1) and end connector (2); The first end of the connecting rod (1) is provided with a first connecting structure for connecting the middle bracket (3), and the end connector (2) is provided with a second connecting structure for connecting the end mold; The second end of the connecting rod (1) is provided with a horizontal first plate (101), and the end connector (2) is provided with a horizontal second plate (201). The first plate (101) and the second plate (201) are connected by a first fastener (6).

2. The attachment means for the inner mold center carrier according to claim 1, characterized in that, The second plate (201) has a first opening groove (202) at one end facing away from the connecting rod (1), and the first plate (101) has a first through hole (102) at the position corresponding to the first opening groove (202); The first fastener (6) includes a first screw (601) and a first nut (602) with threaded connection. The screw of the first screw (601) passes through the first opening slot (202) and the first through hole (102). The nut of the first screw (601) and the first nut (602) abut against the first plate (101) and the second plate (201) respectively.

3. The attachment means for the inner mold center carrier according to claim 1, characterized in that, The second plate (201) has a first opening groove (202) at one end facing away from the connecting rod (1), and the first plate (101) has a first through hole (102) at the position corresponding to the first opening groove (202); The first fastener (6) includes a first screw (603), a first nut (602), a first cam (604), a first handle (605), and a first elastic washer (606). The first nut (602) is threaded onto the first screw (603), the first elastic washer (606) is sleeved on the first screw (603), the first cam (604) is hinged to the end of the first screw (603), the first elastic washer (606) is located between the first nut (602) and the first cam (604), and the first handle (605) is connected to the side of the first cam (604). The first screw (603) passes through the first opening slot (202) and the first through hole (102), and the first elastic washer (606) and the first nut (602) abut against the first plate (101) and the second plate (201) respectively.

4. The connecting device for the middle bracket of the inner mold according to claim 2 or 3, characterized in that, A second fastener (7) is also connected between the first plate (101) and the second plate (201).

5. The connecting device for the middle bracket of the inner mold according to claim 4, characterized in that, The second plate (201) has a second opening groove (203) on its side, and the opening of the second opening groove (203) is perpendicular to the first opening groove (202). The first plate (101) has a second through hole (103) at the position corresponding to the second opening groove (203). The second fastener (7) includes a second screw (701) and a second nut (702) with threaded connection. The screw of the second screw (701) passes through the second opening slot (203) and the second through hole (103). The nut of the second screw (701) and the second nut (702) abut against the first plate (101) and the second plate (201) respectively.

6. The connecting device for the middle bracket of the inner mold according to claim 5, characterized in that, The side of the second opening groove (203) closest to the first opening groove (202) has a flared structure.

7. The connecting device for the middle bracket of the inner mold according to claim 4, characterized in that, The second plate (201) has a second opening groove (203) on its side, and the opening of the second opening groove (203) is perpendicular to the first opening groove (202). The first plate (101) has a second through hole (103) at the position corresponding to the second opening groove (203). The second fastener (7) includes a second screw, a second nut, a second cam, a second handle and a second elastic washer. The second nut is threaded onto the second screw, the second elastic washer is sleeved on the second screw, the second cam is hinged to the end of the second screw, the second elastic washer is located between the second nut and the second cam, and the second handle is connected to the side of the second cam. The second screw passes through the second opening slot (203) and the second through hole (103), and the second elastic washer and the second nut abut against the first plate (101) and the second plate (201) respectively.

8. The connecting device for the central support of the inner mold according to any one of claims 1 to 3, characterized in that, The end connector (2) includes a support plate (204) and a reinforcing plate (205), the second plate (201) is disposed on the top of the support plate (204), and the reinforcing plate (205) is connected between the support plate (204) and the second plate (201); The second connection structure is provided on the support plate (204) and / or the reinforcing plate (205).

9. The connecting device for the middle bracket of the inner mold according to any one of claims 1 to 3, characterized in that, The first connection structure includes a third plate (104) disposed at the first end of the connecting rod (1), and a third through hole (105) disposed on the third plate (104).

10. A connecting system for a central bracket in an inner mold, characterized in that, It includes a central bracket (3), an end mold (4), and the connecting device as described in any one of claims 1 to 9; The connecting rod (1) is connected to the middle bracket (3) through the first connecting structure, and the end connector (2) is connected to the inner wall of the end mold (4) through the second connecting structure.

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