Joint bar connecting structure for door groove installation

Abstract

The utility model discloses a joint bar connecting structure for door groove installation in the field of hydraulic engineering, which comprises a door groove, joint bars and joint bar connecting pieces, the joint bars are divided into a first joint bar and a second joint bar which are connected through the joint bar connecting pieces, one of the joint bars is fixedly connected with the joint bar connecting pieces, and the other joint bar is movably connected with the joint bar connecting pieces. T-shaped heads are arranged at the ends of the movably connected joint bars, containing cavities are formed in the joint bar connecting pieces, the T-shaped heads are movably limited in the containing cavities, and gaps are reserved between the T-shaped heads and the inner walls of the containing cavities. A traditional whole joint bar is divided into two sections, the two sections are connected through the joint bar connecting piece, meanwhile, limiting movable connection is formed through the containing cavity of the joint bar connecting piece and the T-shaped head of the joint bar, and when the two sections of joint bars generate relative displacement in the concrete condensation process, the displacement amount can be compensated through the gap between the T-shaped head and the containing cavity; therefore, deformation of the door groove is avoided, the fixing difficulty of the door groove is reduced, and the mounting precision of the door groove is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hydraulic engineering, especially a reinforcing bar connecting structure for gate slot installation. BACKGROUND

[0002] At present, in the domestic and foreign hydropower and water conservancy projects, the gate slot bears all the water pressure of the gate in the working state, and the reinforcing bar connecting the concrete and the gate slot is required to be very high. The reinforcing bar is mainly subjected to tension or compression, and the force is transmitted through the friction between the surface of the reinforcing bar and the concrete, so the reinforcing bar is usually long.

[0003] Because the concrete has a condensation process, the reinforcing bar is deviated in the condensation process of the concrete, and the gate slot and the reinforcing bar need to be welded on site, so it is difficult to control the precision of the gate slot during installation, and the installation is difficult. In order to reduce the installation difficulty and ensure the precision of the gate, the traditional gate slot installation process often adopts the way of pouring concrete in stages, and the concrete is generally poured in two stages. That is, first pour the first-stage concrete, embed the first-stage reinforcing bar, and ensure that the reinforcing bar is exposed on the surface of the first-stage concrete. After the first-stage concrete passes through its condensation period, the exposed part of the gate slot and the first-stage reinforcing bar is lapped by using a lapping bar, and the gate slot is fixed by using measures, and then the second-stage concrete is poured. After the condensation period of the second-stage concrete is over, the fixing measures of the gate slot are removed. The traditional installation of the gate adopts the way of pouring concrete in stages, which effectively reduces the influence of the condensation process of the concrete on the installation of the gate slot, but the process is complex (pouring concrete in stages) and the construction period is long (two condensation periods of the first-stage and second-stage concrete).

[0004] In order to shorten the construction period, some projects at home and abroad began to use the "one-stage direct burial" method to install the gate slot in recent years. Figure 1 As shown in the figure, the reinforcing bar 5 is directly welded with the gate slot 3. Because the reinforcing bar 5 is deviated by a large amount during the condensation period of the first-stage concrete, in order to ensure the installation precision of the gate slot 3, a strong external force is needed to fix the gate slot 3. Therefore, although this method reduces the construction period, it increases the difficulty of fixing the gate slot during the condensation period of the concrete, increases the engineering measure cost, and even may cause the deformation of the reinforcing bar, reduces the stress transmission effect, and affects the safety of the gate operation. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the above-mentioned deficiencies of the existing "one-stage direct burial" type gate slot installation, the technical problem to be solved by the utility model is to provide a reinforcing bar connecting structure for gate slot installation, which can avoid the deformation of the gate slot during the condensation process of the concrete.

[0006] The utility model provides a reinforcing bar connecting structure for door groove installation, which comprises a door groove and reinforcing bars, and further comprises a reinforcing bar connecting piece, wherein the reinforcing bars are divided into a first reinforcing bar and a second reinforcing bar, one end of the first reinforcing bar is fixedly connected with a reinforcing framework of a door groove base, the other end is connected with the reinforcing bar connecting piece, one end of the second reinforcing bar is fixedly connected with the door groove, and the other end is connected with the reinforcing bar connecting piece; one of the first reinforcing bar and the second reinforcing bar is fixedly connected with the reinforcing bar connecting piece, and the other is movably connected with the reinforcing bar connecting piece, the end of the reinforcing bar connected movably is provided with a T-shaped head, the reinforcing bar connecting piece is provided with an accommodating cavity, the T-shaped head is movably limited in the accommodating cavity, and a gap is reserved between the T-shaped head and the inner wall of the accommodating cavity.

[0007] Further, the reinforcing bar connecting piece is a sleeve structure, one end of the sleeve structure is provided with an internal thread, the other end is provided with an opening, the size of the opening is smaller than the inner diameter of the sleeve and larger than the diameter of the reinforcing bar; the T-shaped head of the reinforcing bar connected movably with the reinforcing bar connecting piece is located in the sleeve, and the outer diameter of the T-shaped head is smaller than the inner diameter of the sleeve and larger than the size of the opening of the sleeve; the end of the reinforcing bar fixedly connected with the reinforcing bar connecting piece is provided with an external thread, the sleeve is threadedly connected with the reinforcing bar fixedly connected through the internal thread, and the end of the reinforcing bar is not in abutment with the T-shaped head.

[0008] Further, the reinforcing bar connecting piece is a clamp structure formed by two sleeve halves, the accommodating cavity is divided into a T-shaped accommodating cavity and a columnar accommodating cavity, and is located at two ends of the clamp structure respectively, the T-shaped head of the reinforcing bar connected movably is axially limited in the T-shaped accommodating cavity, and the end of the reinforcing bar fixedly connected is welded and fixed in the columnar accommodating cavity.

[0009] Further, the two sleeve halves are assembled through at least one of the following connecting modes: the two sides are connected through a bolt structure; the joint surface is fixed through welding; the edges are provided with matched clamping parts.

[0010] Further, the middle part of the sleeve half is provided with a partition plate, and the T-shaped accommodating cavity and the columnar accommodating cavity are located on the two sides of the partition plate respectively.

[0011] Further, the first reinforcing bar is fixedly connected with the reinforcing bar connecting piece, and the second reinforcing bar is movably connected with the reinforcing bar connecting piece.

[0012] Further, the first reinforcing bar and the second reinforcing bar each comprise a plurality of reinforcing bars, and each of the reinforcing bars is connected through an independent reinforcing bar connecting piece.

[0013] Further, the inner side of the door groove is provided with a rib plate, and one end of the second reinforcing bar away from the reinforcing bar connecting piece is welded and fixed with the rib plate.

[0014] Further, the gap between the T-shaped head and the inner wall of the accommodating cavity of the reinforcing bar connecting piece is 2-5 mm.

[0015] Furthermore, the space between the T-shaped head and the inner wall of the receiving cavity of the insert connector is filled with cushioning material.

[0016] The beneficial effects of this utility model are as follows: by dividing the traditional whole reinforcing bar into two sections and connecting them with a reinforcing bar connector, and utilizing the receiving cavity of the reinforcing bar connector to form a limiting movable connection with the T-shaped head of the reinforcing bar, when the two sections of the reinforcing bar undergo relative displacement during the concrete cooling process, the displacement can be compensated by the gap between the T-shaped head and the receiving cavity, thereby avoiding deformation of the gate slot, reducing the difficulty of fixing the gate slot, improving the installation accuracy of the gate slot, ensuring the stress transmission effect of the reinforcing bar and the safety of gate operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the existing connection structure between the door groove and the insert rod;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a front sectional view of Scheme 1 of the insert connector of this utility model;

[0020] Figure 4 This is the main sectional view of Scheme 2 of the rib connector of this utility model;

[0021] Figure 5 This is a side view of Scheme 2 of the rib connector of this utility model.

[0022] The markings in the figure are as follows: 1-first insert, 2-second insert, 3-door groove, 4-insert connector, 5-insert, 21-T-shaped head, 31-rib plate, 41-accommodating cavity, 42-opening, 43-sleeve half, 44-T-shaped accommodating cavity, 45-column-shaped accommodating cavity, 46-partition plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] It should be noted that if this utility model contains directional indicators such as up, down, left, right, front, and back, these are used to describe the relative positional relationships between components and are not specific references to the absolute positions of related components or the positional relationships between components. They are only used to explain the relative positional relationships and movement of components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly. If this utility model contains terms related to quantity, such as "many," "multiple," or "several," these specifically refer to two or more.

[0025] like Figure 2As shown, the present invention provides a door slot installation rib connection structure, including a door slot 3 and ribs, and also includes a rib connector 4. The ribs are divided into a first rib 1 and a second rib 2. One end of the first rib 1 is fixedly connected to the steel reinforcement skeleton of the door slot base, and the other end is connected to the rib connector 4. One end of the second rib 2 is fixedly connected to the door slot 3, and the other end is connected to the rib connector 4. Of the first rib 1 and the second rib 2, one is fixedly connected to the rib connector 4, and the other is movably connected to the rib connector 4. The movably connected rib end is provided with a T-shaped head 21. The rib connector 4 is provided with a receiving cavity 41. The T-shaped head 21 is movably limited in the receiving cavity 41, and a gap is maintained between the T-shaped head 21 and the inner wall of the receiving cavity 41.

[0026] The insertion rod connector 4 is preferably positioned close to the door groove 3 to facilitate simultaneous installation of the insertion rod connector 4 during the fixing of the door groove 3. Typically, the steel reinforcement frame of the door groove base has many insertion rods welded and fixed to the door groove 3. In actual construction, some insertion rods can be selected at intervals, divided into two sections, and connected using insertion rod connector 4. Some insertion rods can be directly connected to the door groove, ensuring the reliability of the connection between the door groove 3 and the insertion rods. Alternatively, all insertion rods can be divided into two sections, with each corresponding rod connected by an independent insertion rod connector 4. To facilitate welding between the door groove 3 and the insertion rods, a rib plate 31 is provided on the inner side of the door groove 3. The end of the second insertion rod furthest from the insertion rod connector 4 is welded and fixed to the rib plate 31. The T-shaped head 21 can be set on either the first insertion rod 1 or the second insertion rod 2; for ease of construction, it is preferably set on the second insertion rod 2. The purpose of setting the T-shaped head 21 is to confine it within the receiving cavity 41, preventing it from detaching from the receiving cavity 41, while allowing it to move within a certain range. Based on the deformation of the reinforcing bars during previous construction, the gap between the T-head 21 and the inner wall of the receiving cavity 41 of the reinforcing bar connector 4 can be set to 2-5mm. This size ensures a stable connection between the first reinforcing bar 1 and the second reinforcing bar 2 after compensation for displacement. Furthermore, to ensure that the T-head 21 does not contact the inner wall of the receiving cavity 41 during installation, a buffer material can be filled between the T-head 21 and the inner wall of the receiving cavity 41 of the reinforcing bar connector 4. The buffer material can be a rubber pad, pearl cotton, or cardboard, which ensures the alignment of the T-head 21 and the receiving cavity 41 without affecting their relative displacement.

[0027] The construction process and working principle of this utility model are as follows: During the construction of the steel reinforcement frame of the door slot base, the door slot 3 is installed simultaneously and fixed using an external fixing structure. Then, the first insert 1 and the second insert 2 are connected together using the insert connector 4. Subsequently, the end of the second insert 2 furthest from the insert connector 4 is welded and fixed to the rib plate 31 of the door slot 3. During welding, it is necessary to ensure that the T-shaped head 21 does not contact the inner wall of the receiving cavity 41. Finally, concrete is poured, and after it solidifies, the external fixing structure fixing the door slot 3 is removed. During the concrete solidification process, deformation will cause the inserts to move. Because the first insert 1 is longer, the displacement will be relatively large, while the second insert 2 is shorter and the displacement is smaller. Therefore, a certain misalignment will occur between the two at the insert connector 4. This misalignment will be compensated by the gap between the T-shaped head 21 and the inner wall of the receiving cavity 41, thereby reducing the impact of the displacement of the second insert 2 on the door slot 3 and ensuring the installation accuracy of the door slot 3. At the same time, this connection structure also reduces the difficulty of fixing the gate slot 3, ensuring the stress transfer effect of the reinforcing bar and the safety of the gate operation.

[0028] Regarding the specific structure of the insert connector 4, this utility model provides the following two embodiments:

[0029] Example 1:

[0030] like Figure 3 As shown, the insert connector 4 is a sleeve structure. One end of the sleeve structure has an internal thread, and the other end has an opening 42. The size of the opening 42 is smaller than the inner diameter of the sleeve and larger than the diameter of the insert. The T-shaped head 21 of the insert, which is movably connected to the insert connector 4, is located inside the sleeve, and the outer diameter of the T-shaped head 21 is smaller than the inner diameter of the sleeve and larger than the size of the opening 42. The end of the insert, which is fixedly connected to the insert connector 4, has an external thread. The sleeve forms a threaded connection with the fixedly connected insert through the internal thread, and the end of the insert does not abut against the T-shaped head 21. The insert connector 4 uses the internal cavity of the sleeve as a receiving cavity 41, and the size design of the opening 42 limits the T-shaped head 21. At the same time, the threaded connection is used to achieve the fixed connection between the insert connector 4 and the insert. The structure is simple and easy to install. If it is inconvenient to process the external thread at the end of the insert on site, a bolt can be welded to the end of the insert instead.

[0031] Example 2:

[0032] like Figure 4 , Figure 5As shown, the insert connector 4 is a clamp structure formed by assembling two sleeve halves 43. The receiving cavity 41 is divided into a T-shaped receiving cavity 44 and a cylindrical receiving cavity 45, located at both ends of the clamp structure. The T-shaped head 21 of the movable insert is axially confined within the T-shaped receiving cavity 44, and the end of the fixed insert is welded and fixed within the cylindrical receiving cavity 45. The two sleeve halves 43 can be fixed by bolts on both sides; by welding at the joint surface; or by interlocking snap-fit ​​parts on the edges of the two sleeve halves 43. During installation, first, the cylindrical receiving cavity 45 of one sleeve halves 43 is welded to the fixed insert, then the T-shaped head 21 of the movable insert is placed into the T-shaped receiving cavity 44, and finally the other sleeve halves 43 are closed and fixed. In addition, to distinguish between the T-shaped receiving cavity 44 and the cylindrical receiving cavity 45 within the insert connector 4, a baffle plate 46 is provided in the middle of the sleeve half 43, with the T-shaped receiving cavity 44 and the cylindrical receiving cavity 45 located on both sides of the baffle plate 46. The baffle plate 46 ensures the spatial size of the T-shaped receiving cavity 44 and also provides axial positioning for the insert when welding the fixed connection.

[0033] In summary, this utility model divides the traditional single reinforcing bar into two sections and connects them using a reinforcing bar connector 4. Simultaneously, the connector 4's receiving cavity 41 forms a limiting movable connection with the T-shaped head 21 of one section of the reinforcing bar. When the two sections of the reinforcing bar experience relative displacement during the concrete cooling process, the gap between the T-shaped head 21 and the receiving cavity 41 compensates for the displacement, thereby preventing deformation of the gate slot 3, reducing the difficulty of fixing the gate slot 3, improving the installation accuracy of the gate slot 3, ensuring the stress transfer effect of the reinforcing bar and the safety of gate operation, and possessing excellent practicality and application value.

Claims

1. A soffit connection structure for a door jamb installation, comprising a door jamb (3) and a soffit, characterized in that: The application also comprises a bar connector (4), which is divided into a first bar (1) and a second bar (2), one end of the first bar (1) is fixedly connected with the steel framework of the door slot base, the other end is connected with the bar connector (4), one end of the second bar (2) is fixedly connected with the door slot (3), the other end is connected with the bar connector (4); one of the first bar (1) and the second bar (2) is fixedly connected with the bar connector (4), the other is movably connected with the bar connector (4), the end of the bar movably connected with the bar connector (4) is provided with a T-shaped head (21), the bar connector (4) is provided with a containing cavity (41), the T-shaped head (21) is movably limited in the containing cavity (41), and a gap is reserved between the T-shaped head (21) and the inner wall of the containing cavity (41).

2. The collar connection for a door threshold installation according to claim 1, characterized in that: The bar connector (4) is a sleeve structure, one end of the sleeve structure is provided with an internal thread, the other end is provided with an opening (42), the size of the opening (42) is smaller than the inner diameter of the sleeve and larger than the diameter of the bar; the T-shaped head (21) of the bar movably connected with the bar connector (4) is located in the sleeve, and the outer diameter of the T-shaped head (21) is smaller than the inner diameter of the sleeve and larger than the size of the opening (42); the end of the bar fixedly connected with the bar connector (4) is provided with an external thread, the sleeve is threadedly connected with the bar fixedly connected with the bar connector (4), and the end of the bar does not abut against the T-shaped head (21).

3. The collar connection for a door threshold installation of claim 1, wherein: The bar connector (4) is a clamp structure formed by two sleeve halves (43), the containing cavity (41) is divided into a T-shaped containing cavity (44) and a columnar containing cavity (45), which are located at two ends of the clamp structure respectively, the T-shaped head (21) of the bar movably connected with the bar connector (4) is axially limited in the T-shaped containing cavity (44), and the end of the bar fixedly connected with the bar connector (4) is welded and fixed in the columnar containing cavity (45).

4. The collar connection for a door threshold installation according to claim 3, characterized in that The two sleeve halves (43) are assembled by at least one of the following connection modes: the two sides are connected by a bolt structure; the joint surface is fixed by welding; the edges are provided with matching clamping parts.

5. The collar connection for a door threshold installation according to claim 3, characterized in that: The middle part of the sleeve half (43) is provided with a partition plate (46), and the T-shaped containing cavity (44) and the columnar containing cavity (45) are located on the two sides of the partition plate (46) respectively.

6. A fillet connection for a door threshold installation according to any one of claims 1 to 5, characterized in that: The first bar (1) is fixedly connected with the bar connector (4), and the second bar (2) is movably connected with the bar connector (4).

7. The sleeve connection for a door pocket installation according to claim 6, characterized in that: The first bar (1) and the second bar (2) each comprise a plurality of bars, and each corresponding bar is connected by an independent bar connector (4) respectively.

8. The collar connection for a door threshold installation according to claim 6, characterized in that: The inner side of the door slot (3) is provided with a rib plate (31), and one end of the second bar (2) away from the bar connector (4) is welded and fixed with the rib plate (31).

9. The collar connection for a door threshold installation of claim 6, wherein: The gap between the T-shaped head (21) and the inner wall of the containing cavity of the bar connector (4) is 2-5 mm.

10. The collar connection for a door threshold installation of claim 9, wherein: The gap between the T-shaped head (21) and the inner wall of the containing cavity (41) of the bar connector (4) is filled with a buffer material.

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