Precise butt joint auxiliary device for gate groove track

Abstract

The utility model discloses a gate groove track accurate butt joint auxiliary device which comprises two limiting steel plates used for being clamped on a lower prefabricated part, a screw rod is connected between the two limiting steel plates, and the two ends of the screw rod are respectively provided with a locking nut. The upper end of the limiting steel plate is of an outwards-inclined structure, the lower end of the limiting steel plate is of a vertical structure, a reinforcing rib plate attached to the surface of the limiting steel plate is further arranged on the outer side of the limiting steel plate, and the reinforcing rib plate and the limiting steel plate form a T-shaped structure. The two limiting steel plates of the auxiliary device are fixed to the lower prefabricated part, in the falling and splicing process of the upper prefabricated part, the inclined upper ends of the limiting steel plates are used for guiding and positioning, rapid and high-precision butt joint of splicing of the upper prefabricated part and the lower prefabricated part of the gate pier is achieved, and high-precision alignment with the error within 1-2 mm is achieved.

Description

Technical Field

[0001] The utility model relates to an auxiliary device for precise docking of a gate slot track, belonging to the technical field of water conservancy projects. Background Technique

[0002] In the project, the in-place docking methods such as the steel bar connecting sleeve commonly used for component assembly are controlled by ensuring that all steel bars can be smoothly inserted into the sleeve as the control standard for on-site docking accuracy. To ensure smooth and full grouting in the sleeve and sufficient bonding ability to the steel bars, sufficient clearance must be set to ensure the slurry channel and thickness. The current relevant specifications stipulate that the inner diameter of the sleeve should be 10 mm larger than the diameter of the steel bar. According to this standard, the on-site construction accuracy error is controlled within 3 - 5 mm. Obviously, this connection accuracy is far from meeting the docking accuracy requirements of the gate track.

[0003] The limiting devices include the following types:

[0004] (1) Concave pit or pin type: Usually, an inverted trapezoidal concave pit or cup mouth is reserved on the upper skin of the lower section, and pins of the same shape are installed at the lower part of the upper section, with the size slightly smaller than the cup mouth size, usually controlled within 3 - 5 mm;

[0005] (2) Unilateral triangular support form: Composed of a horizontal rod, a vertical rod, and a diagonal brace, it has relatively large stiffness; the horizontal rod is fixed on the lower horizontal member, perpendicular to the surface of the vertical member; the vertical rod is aligned with the control line, and the component descends and closely adheres to the vertical rod and slowly descends;

[0006] (3) L-shaped corner limiting form: Set at the four corners of the lower column, usually leaving a certain construction deviation space.

[0007] The position correction devices include the following types:

[0008] (1) Adjustable inclined support correction: Suitable for the position correction of walls and columns with floors below. An adjustable inclined support is set on one side of the vertical member, with the lower end fixed on the horizontal member and the upper end connected to the side of the hoisted member. It is mainly used to adjust the verticality of the vertical member. When adjusting the horizontal position, two supports are set, the upper support remains unchanged, and the length of the lower support is adjusted to push and pull the bottom position of the component;

[0009] (2) Ring tractor correction: Suitable for column position correction. After the vertical member is hoisted and initially positioned, a steel ring is installed outside and connected to a movable trolley. By pushing the trolley, the bottom position of the component is driven to move;

[0010] (3) Ring screw correction: Suitable for the position correction of floor columns. An assembled steel ring is provided with a fixed base at the lower part, and adjustable screws and a jacking plate are installed around. After the vertical member is initially positioned, the steel ring is wound around the outside of the component, and the bottom is fixed on the horizontal member. By rotating and pushing the adjustable screws around, the column position is adjusted.

[0011] In the above methods, except for the cup - mouth type limit and the corner limit, other methods are only applicable to the butt - joint of walls and columns in prefabricated building projects, and it is difficult to apply them to the precision control and correction of the high - altitude splicing of large - sized pier gates. However, it is very difficult to control the splicing surface precision within 1 - 2 mm with the two methods of cup - mouth and corner limit.

[0012] In view of the high - altitude high - precision butt - joint requirements for the gate track, a new type of auxiliary device needs to be developed. Utility Model Content

[0013] The technical problem to be solved by the present utility model is to provide an auxiliary device for precise butt - joint of the gate slot track, so as to solve the problem of insufficient centering precision in the prior art and improve the precision and construction efficiency of the assembly of modular building components.

[0014] In order to solve the above - mentioned technical problems, the technical solution adopted by the present utility model is as follows:

[0015] An auxiliary device for precise butt - joint of the gate slot track includes two limit steel plates for clamping on the lower pre - fabricated component. A screw rod is connected between the two limit steel plates, and locking nuts are respectively arranged at both ends of the screw rod. The upper end of the limit steel plate is an outward - inclined structure, and the lower end is a vertical structure. Moreover, a stiffening rib plate is arranged on the outer side of the limit steel plate and is attached to its surface, and the stiffening rib plate and the limit steel plate form a T - shaped structure.

[0016] The above - mentioned auxiliary device for precise butt - joint of the gate slot track is characterized in that: two groups of anchor bolt assemblies for fixedly connecting with the lower pre - fabricated component are further arranged on one of the two limit steel plates.

[0017] The above - mentioned auxiliary device for precise butt - joint of the gate slot track is characterized in that: the distance between the anchor bolt holes of the two groups of anchor bolt assemblies from the lower edge of the lower end of the limit steel plate is not less than 30 mm, and the horizontal distance between the two groups of anchor bolt assemblies is not less than the width of the gate track embedded part.

[0018] The above - mentioned auxiliary device for precise butt - joint of the gate slot track is characterized in that: two screw rods are connected between the two limit steel plates, and the screw rods are located at the lower end of the limit steel plates, and the distance between the lower edge of the screw rods and the upper edge of the lower end of the limit steel plates is not less than 30 mm.

[0019] The above - mentioned auxiliary device for precise butt - joint of the gate slot track is characterized in that: the width of the limit steel plate is at least 40 mm wider than the width of the gate embedded track, and the thickness of the limit steel plate is not less than 8 mm.

[0020] The foregoing auxiliary device for precise docking of a gate slot track is characterized in that: the upper end of the limiting steel plate inclines outward at an angle not greater than 45°, the height is not less than 50 mm, and the horizontal distance by which the upper end of the limiting steel plate offsets outward is not less than 20 mm, and the height of the lower end is not less than 80 mm.

[0021] The foregoing auxiliary device for precise docking of a gate slot track is characterized in that: the width of the reinforcing rib plate is less than 40 mm.

[0022] The beneficial effects of the present utility model are:

[0023] 1. By fixing two limiting steel plates of the auxiliary device on the lower precast member, during the process of the upper precast member falling and splicing, the inclined upper end of the limiting steel plate is used for guiding and positioning, so as to realize the rapid and high-precision docking of the upper and lower precast members of the pier, achieving a high-precision alignment with an error within 1-2 mm; meanwhile, the device has a simple structure and is convenient to use, without the need for complex mechanical equipment and high-precision measuring tools, greatly simplifying the construction process and ensuring the installation accuracy and construction efficiency of the precast member;

[0024] 2. By adding and driving an anchor bolt assembly on the limiting steel plate on one side of the gate slot, the limiting and fixing of this surface is maintained. When there are dimensional deviations in the prefabrication of the upper and lower precast members, the accuracy of one side of the gate slot is preferentially ensured, and on the other side, the thin steel plate is clamped and the lock nut is tightened or the nut is loosened to ensure the docking accuracy of the two side tracks. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of an auxiliary device for precise docking of a gate slot track of the present utility model;

[0026] Figure 2 is a schematic structural diagram when the upper and lower precast members of the present utility model are spliced;

[0027] Figure 3 is a schematic structural diagram of the auxiliary device for precise docking of a gate slot track of the present utility model installed on the lower precast member;

[0028] In the figure: 1. Upper precast member; 2. Lower precast member; 3. Screw; 4. Nut; 5. Limiting steel plate; 6. Anchor bolt; 7. Main rail; 8. Side rail; 10. Reinforcing rib plate. Detailed Embodiment

[0029] The following will further illustrate the present utility model in conjunction with the drawings in the specification.

[0030] As Figures 1 - 3As shown in the figure, a precise docking auxiliary device for a gate slot track includes two limit steel plates 5 for clamping on the lower precast member 2. A screw rod 3 is connected between the two limit steel plates 5. Locking nuts 4 are respectively arranged at both ends of the screw rod 3. The upper end of the limit steel plate 5 is an outwardly inclined structure, and the lower end is a vertical structure.

[0031] During specific implementation, multiple precise docking auxiliary devices for the gate slot track are fixed to the lower precast member 2 in both horizontal and vertical directions as required. The limit steel plates 5 of each precise docking auxiliary device for the gate slot track are clamped to the lower precast member 2 through the screw rod 3, and the screw rod 3 is in direct contact with the upper surface of the upper precast member 2. After tensioning, the side rail 8 and the main rail 7 positions of the lower precast member 2 are pulled. When the upper precast member 1 on the pier drops, it slides along the docking auxiliary device, and the limit steel plate 5 is used for precise alignment and assembly in place.

[0032] It should be noted that before assembly, steel plate pads are placed at the four corners of the upper surface of the lower precast member 2, so that there is a certain gap between the upper and lower precast members after assembly in place, which is used for glue injection sealing. Therefore, after the upper precast member 1 slides in place along the docking auxiliary device, the gap formed by the steel plate pads can be utilized to loosen the screw rod 3 and remove the entire device, which does not affect the subsequent glue injection sealing process. Subsequently, the butt-jointed guide rail embedded parts are welded and polished by welding.

[0033] Two groups of anchor bolt assemblies 6 that can be fixedly connected to the lower precast member 2 are also arranged on one of the two limit steel plates 5. During installation, this limit steel plate 5 is fixed on one side of the gate slot to ensure the limit fixation of this surface of the limit steel plate 5. When there are certain dimensional deviations in the prefabrication of the upper and lower precast members, the accuracy of one side of the gate slot is preferentially ensured. For the other side, the clip pads of thin steel plates are used to tighten or loosen the locking nuts on the components to ensure the docking accuracy of the two side tracks. During the actual splicing process, the sizes of the upper and lower precast members cannot be exactly the same. The upper member may be a little larger or smaller. Before the upper precast member is lowered, loosen the nut 4 a little to make the distance between the two limit steel plates 5 slightly larger. After the upper precast member slowly drops, according to the size of the gap with the limit steel plate 5, tighten the nut 4 to clamp and level the upper and lower precast members. Specifically, after the upper precast member is lowered for the first time, the dimensional deviation degree relative to the lower precast member can be known. According to this deviation degree, adjust the tightness of the nut 4 relative to the screw rod 3, and then lower the upper precast member again. After it is placed in place, lock it through the nut 4, and then the upper lifting points on the upper precast member are unloaded and loosened.

[0034] The distance between the anchor bolt holes of the two groups of anchor bolt assemblies 6 from the lower edge of the lower end of the limit steel plate 5 is not less than 30 mm, ensuring that after the anchor bolt assemblies 6 are fixed to the lower precast member 2, they can withstand sufficient extrusion pressure without deformation or detachment when the upper precast member 1 descends; the horizontal distance between the two groups of anchor bolt assemblies 6 is not less than the width of the gate track embedded part, ensuring that the anchor bolt assemblies 6 will not affect the docking of the track embedded part.

[0035] Two screw rods 3 are connected between the two limit steel plates 5, and the screw rods 3 are located at the lower end of the limit steel plates 5, and the distance from the lower edge of the screw rods 3 to the upper edge of the lower end of the limit steel plates 5 is not less than 30 mm. After the entire auxiliary device is fixed to the lower precast member 2, the lower end of the limit steel plate 5 can protrude at least 30 mm above the upper surface of the lower precast member 2, which can effectively ensure the positioning of the upper precast member.

[0036] The width of the limit steel plate 5 is at least 40 mm wider than the width of the gate embedded track embedded part, and the thickness of the limit steel plate 5 is not less than 8 mm, ensuring the strength of the entire limit steel plate 5. At the same time, a reinforcing rib plate 10 is arranged on the outside of the limit steel plate 5 and is attached to its surface. The reinforcing rib plate 10 and the limit steel plate 5 form a T-shaped structure. The width of the reinforcing rib plate 10 is less than 40 mm. Through the design of the reinforcing rib plate 10, the strength of the entire limit steel plate 5 is further enhanced, and no deformation will occur during the descent and positioning of the upper precast member 1 to affect the splicing accuracy.

Claims

1. A door slot track precision docking auxiliary device, characterized in that: The invention comprises two limiting steel plates (5) for clamping on the lower prefabricated component (2), a screw rod (3) being connected between the two limiting steel plates (5), locking nuts (4) being respectively arranged at both ends of the screw rod (3), the upper end of the limiting steel plate (5) being an outwardly inclined structure, and the lower end being a vertical structure, and a reinforcing rib plate (10) being arranged on the outer side of the limiting steel plate (5) and being in contact with the surface thereof, and the reinforcing rib plate (10) and the limiting steel plate (5) forming a T-shaped structure.

2. The door groove track precise docking auxiliary device according to claim 1, characterized in that: Two groups of anchor bolt assemblies (6) which can be fixedly connected to the lower prefabricated component (2) are also provided on one of the two limiting steel plates (5).

3. The door groove track precise docking auxiliary device according to claim 2, characterized in that: The anchor holes of the two groups of anchor assemblies (6) are not less than 30 mm away from the lower edge of the lower end of the limiting steel plate (5), and the horizontal spacing between the two groups of anchor assemblies (6) is not less than the width of the gate track embedded part.

4. The door groove track precise docking auxiliary device according to claim 3, characterized in that: Two screw rods (3) are connected between the two limiting steel plates (5), and the screw rods (3) are located at the lower end of the limiting steel plate (5), and the lower edge of the screw rod (3) is not less than 30 mm away from the upper edge of the lower end of the limiting steel plate (5).

5. The door groove track precise docking auxiliary device according to claim 4, characterized in that: The width of the limiting steel plate (5) is at least 40 mm wider than the width of the embedded part of the gate embedded track, and the thickness of the limiting steel plate (5) is not less than 8 mm.

6. The door groove track precise docking auxiliary device according to claim 5, characterized in that: The upper end of the limiting steel plate (5) is inclined outward at an angle not greater than 45° and has a height not less than 50 mm. The upper end of the limiting steel plate (5) is deflected outward by a horizontal distance not less than 20 mm and the lower end is not less than 80 mm in height.

7. The door groove track precise docking auxiliary device according to claim 6, characterized in that: The width of the reinforcing rib plate (10) is less than 40 mm.

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