Mud leakage prevention type reserved hole forming assembly

Abstract

The utility model discloses a slurry leakage prevention type reserved hole forming assembly which comprises an inner base and an outer base, the inner base is arranged on the top face of a floor support plate body of a steel bar truss floor support plate, and a connecting plug is arranged on the top face of the outer base. The connecting plug of the outer base penetrates through the floor support plate body from the lower portion of the floor support plate body and then is detachably connected to the inner base, and the inner base and the outer base clamp the floor support plate body. According to the grout leakage prevention type reserved hole forming assembly, the inner base and the outer base are clamped at the position, where a hole needs to be reserved, of a steel bar truss floor support plate, the hole is effectively blocked, and the situation that grout leaks at the position of the reserved hole is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction and relates to a slurry leakage-proof reserved hole forming component. Background Art

[0002] The steel truss floor deck is a composite structural system formed by processing the main load-bearing steel bars in the floor slab into steel trusses using special equipment in the factory, and then welding the steel trusses and galvanized steel plates into one. During the construction stage of the structural floor slab, the steel truss floor deck replaces the construction formwork with galvanized steel plates, and the truss structure formed by welding the steel bars in the structure bears the dead weight of the floor slab concrete and the construction load together; after pouring the concrete, the steel truss concrete floor slab is formed to bear the use load during the use stage. The steel truss floor deck is economical, convenient, safe and reliable. It is currently widely used in multi-story factories, multi-story, high-rise, high-rise steel structure buildings, various irregular floors, various prefabricated panels, high-speed railways and other structural and construction fields.

[0003] During the actual construction of the steel truss floor deck, there is a serious leakage of the steel truss floor deck, especially in the locations where pipes need to be inserted or reserved holes need to be set. Generally, it is necessary to open holes in the floor deck body first, then bury the pipes and seal the gaps, and finally pour concrete. The iron sheet of the floor deck body of the steel truss floor deck is thin and uneven, making it difficult to seal tightly. During the concrete pouring process, the concrete slurry will leak from the reserved holes, and the leakage problem is difficult to solve.

[0004] In order to solve the above problems, a device for forming reserved holes that can be used in the construction of steel truss floor decking is needed to solve the problem of serious leakage caused by loose sealing of the reserved hole positions in traditional construction methods. Utility Model Content

[0005] In view of this, the utility model provides a leakage-proof pre-reserved hole forming component, which effectively seals the holes by clamping the inner base and the outer base at the positions where holes need to be reserved in the steel truss floor decking, thereby effectively preventing leakage of slurry from occurring at the reserved hole positions.

[0006] The utility model discloses a slurry leakage-proof reserved hole forming component, comprising an inner base and an outer base, wherein the inner base is arranged on the top surface of a floor deck body of a steel truss floor deck, and the top surface of the outer base is provided with a plug connector, and the plug connector of the outer base is detachably connected to the inner base after passing through the floor deck body from the lower part of the floor deck body, and the inner base and the outer base clamp the floor deck body.

[0007] Furthermore, it also includes a pre-buried pipe, which is vertically arranged and detachably installed on the top of the inner base.

[0008] Furthermore, the outer base is in a disc-shaped structure, and the plug connector is integrally formed and arranged on the top surface of the outer base, so that the outer base and the plug connector are in a trumpet-shaped structure as a whole.

[0009] Furthermore, the inner base has a vertically penetrating installation channel, the plug connector is detachably installed at the bottom of the installation channel, and the embedded pipe is detachably installed at the top of the installation channel.

[0010] Furthermore, the bottom surface of the inner base is in contact with the top surface of the floor deck body; the top surface of the outer base is in contact with the bottom surface of the floor deck body.

[0011] Furthermore, the embedded pipe is provided with a through middle channel along the vertical direction, and the middle channel is connected to the installation channel.

[0012] Furthermore, the periphery of the top surface of the inner base extends radially outward, so that the inner base as a whole has a trumpet-shaped structure.

[0013] Furthermore, a sealing gasket for sealing the gap between the external base and the floor deck body is also provided on the top surface of the external base.

[0014] Beneficial effects of the utility model:

[0015] The utility model provides a slurry leakage-proof reserved hole forming component, which effectively blocks the hole by clamping the inner base and the outer base at the position where the hole needs to be reserved in the steel truss floor deck, and effectively avoids the situation of slurry leakage at the reserved hole position. The provision of the sealing gasket further enhances the sealing effect of the overall structure, and further ensures that there will be no slurry leakage. The utility model effectively ensures that the floor deck body of the steel truss floor deck at the position where the hole needs to be reserved can be effectively blocked, thereby avoiding the situation of slurry leakage at the reserved hole position.

[0016] The interconnected middle channel and installation channel can also serve as wire threading pipes or reserved wire threading holes after the concrete pouring is completed, protecting the cast floor slab and also protecting the wiring harnesses that need to pass through the floor slab from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the erection structure of the side support system in the embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the front view structure of the side support system in the embodiment of the utility model;

[0019] Figure 3 is a side cross-sectional view of a side support system in an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the axial structure of the side support system in an embodiment of the utility model;

[0021] Figure 5 Schematic diagram of the overlap structure of the side support system and the beam template in the embodiment of the utility model

[0022] Figure 6 It is a schematic diagram of the axial structure of the correction and resetting device in the embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of the front view structure of the correction and resetting device in the embodiment of the utility model;

[0024] Figure 8 It is a side view structural schematic diagram of the correction and reduction device in the embodiment of the utility model;

[0025] Fig. 9 It is a schematic diagram of the structure explosion of the reserved hole forming component of the utility model;

[0026] Fig.10 This is a schematic diagram of the installation structure of the reserved hole forming component of the utility model. DETAILED DESCRIPTION

[0027] It should be noted that in the description of this specification, the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does 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 cannot be understood as a limitation on the utility model. The vertical direction and the height direction in this embodiment are the same direction, and the horizontal direction is a direction perpendicular to the vertical direction.

[0028] As shown in the figure, this embodiment will further illustrate the utility model in combination with a cast-in-place floor construction method based on a steel truss floor deck.

[0029] The aforementioned cast-in-place floor construction method based on steel truss floor deck specifically includes the following steps:

[0030] S1, support the beam formwork 2, and set up the side support system 1; before step S1, preparation work is still required. Before construction, the initial position of the support system should be determined according to the axis and the frame plan layout according to the construction drawing, and the frame arrangement and the module of the steel truss floor slab support platform should be verified and arranged. Then, according to the design drawings, the specific position and elevation of the floor should be determined, and the main control line should be placed using the theodolite, and then the total station and ink fountain should be used for measurement and layout; the wall column steel bars at the construction site should be tied according to the design drawings, and the wall column steel bars should be concealed after the tying is completed. After the acceptance is qualified, the wall column should be closed; after the preparation is completed, the beam formwork 2 and the supporting structure at the bottom of the beam should be erected according to the design drawings, and it should be ensured that the beam formwork 2 is erected flat and stable.

[0031] In this embodiment, the side support system 1 includes a plurality of support plates 3, which are arranged in a lockable manner to move in the vertical direction; the plurality of support plates 3 are arranged on the outer side of the beam formwork 2 along the circumference of the beam formwork 2, and any two adjacent support plates 3 fit each other. As shown in the figure, the support plates 3 are arranged along the periphery of the beam formwork 2, that is, the plurality of support plates 3 are installed and arranged along the supporting structure of the beam formwork 2, so that support plates 3 are arranged on both sides of the beam formwork 2 in the area where the steel truss floor decking needs to be laid, and the plurality of support plates 3 are arranged as shown in the figure, forming a reliable support platform structure on the outer side of the beam formwork 2, which provides an effective support foundation for the laying of the steel truss floor decking, and also provides a working platform for the workers during construction. The support plate 3 in this embodiment also includes a long web 4 and a short web 5. As shown in the figure, the support plate 3 is a rectangular structure. The support plate 3 has two long sides and two short sides. The long web 4 is vertically arranged at the position of the long side of the support plate 3 and is located on the bottom surface of the support plate 3; the short web 5 is vertically arranged at the position of the short side of the support plate 3 and is located on the bottom surface of the support plate 3; that is, the long web 4 is arranged along the long side, and the short web 5 is arranged along the short side. When the support plate 3 is installed, the support plate 3 is arranged in a way that the long web 4 is in contact with the outer wall surface of the beam formwork 2. The side support system 1 in this embodiment also includes an adjusting rod 6, an outer rod 8 and an adjusting disc buckle 7. The bottom surface of each support plate 3 is fixedly provided with an adjusting rod 6, and the outer rod 8 is also provided in a one-to-one correspondence with the adjusting rod 6; the outer rod 8 is vertically arranged, and the outer rod 8 is provided with an adjusting channel along the central axis, the entrance of the adjusting channel is located on the top surface of the outer rod 8, the adjusting rod 6 is installed in the adjusting channel in a plug-in manner, the adjusting disc mouth is sleeved on the adjusting rod 6, and the bottom surface of the adjusting disc buckle 7 is against the entrance of the adjusting channel, so that the adjusting rod 6 is axially limited; as shown in the figure, the adjusting rod 6 is provided with an external thread, and the adjusting disc buckle 7 is provided with a threaded through hole, the adjusting rod 6 is connected to the adjusting disc mouth by threaded matching, the adjusting disc mouth can be driven to rotate, so that the adjusting rod 6 is driven to move axially, and the adjusting disc buckle 7 drives the adjusting rod 6 to move up and down through the thread, thereby realizing the function of moving the support plate 3 in the vertical direction. In this embodiment, when erecting the side support system 1, the outer rod 8 is first erected, and the diagonal rod is pulled according to the requirements of the construction plan, and the support plates 3 are plugged and installed on the outer rod 8 one by one through the adjustment rod 6 according to the modules arranged before construction, and are realized by adjusting the disc buckle 7. When the outer rod 8 is erected, it can also be connected to the supporting structure of the beam template 2 to ensure the stability of the side support system 1 after the completion of the construction.

[0032] S2, tie the beam reinforcement and reinforce the side formwork of the beam formwork 2; tie the beam reinforcement according to the design, set the beam side wall reinforcement protective layer pad, check the beam reinforcement to ensure the correct position and firm fixation. After the beam reinforcement is tied, close the side formwork and reinforce it according to the beam formwork 2 reinforcement construction plan. How to reinforce the beam formwork 2 is a conventional technical means in this technical field and will not be elaborated here.

[0033] S3, adjust the height of the side support system 1; in this embodiment, the long side corresponding to the long web 4 extends outward along the width direction of the support plate 3 to form an overlap flange 9; the short web 5 is provided with two, and the two short webs 5 are respectively provided at the positions of the two short sides of the support plate 3, and the two ends of the length direction of the long web 4 are respectively connected to the two short webs 5; the two short webs 5 at the adjacent positions corresponding to any two adjacent support plates 3 are arranged to fit each other. In step S3, adjusting the height of the side support system 1 is to adjust the height of the support plate 3 until the bottom surface of the overlap flange 9 overlaps the top surface of the side mold part of the beam template 2. As shown in the figure, in this embodiment, the adjacent support plates 3 are mutually fitted and connected by the two short webs 5 at the corresponding adjacent positions. For example, when the current support plate 3 is connected to the adjacent right support plate 3, the short web 5 on the right side of the current support plate 3 fits each other with the short web 5 on the left side of the adjacent right support plate 3, and the two can be detachably connected by means such as bolt connection to ensure the overall stability of the side support system 1. When setting up the side support system, if you encounter a beam with a corner structure as shown in the figure, the support plate 3 at the corner position needs to be provided with an overlap flange 9 not only at the position of the long side, but also at the position of the short side that fits the corner, to ensure that after the side support system 1 is set up, the top surface of the side form of all beam formworks 2 is overlapped with the support plate 3. After the overlap is completed, the outer wall surface of the overlap flange 9 is flush with the inner wall surface of the side form of the beam formwork 2. This arrangement makes the floor slab and the beam column more integrated after the concrete is poured, and there is no gap. It also prevents leakage during the concrete pouring process, effectively improving the construction quality.

[0034] S4, correcting the male buckles and female buckles of the steel truss floor deck to be laid before installation by using the correction and resetting device;

[0035] S5, laying steel truss floor decks, any steel truss floor deck is connected in a manner that its own male buckle or female buckle is corresponding to the female buckle or male buckle of the adjacent steel truss floor deck; after the buckling is completed, the male buckle and female buckle that are buckled with each other are corrected and reset by a correction and reset device so that the male buckle and female buckle are in contact with each other;

[0036] The correction and resetting device in this embodiment includes a correction head 10, a resetting head 11 and a holding handle 12. The correction head 10 and the resetting head 11 are installed at both ends of the holding handle 12. The longitudinal section of the correction head 10 is a semi-teardrop-shaped structure, and the longitudinal section of the resetting head 11 is a teardrop-shaped structure. The longitudinal section refers to the surface formed by cutting along the vertical direction shown in the accompanying drawings. The correction head 10 is used to correct the male and female buckles of the steel truss floor deck before installation in step S4, and the resetting head 11 is used to correct and reset the male and female buckles that are interlocked in step S5. As shown in the figure, the correction head 10 is a semi-teardrop-shaped structure, which has a horizontal plane. The function of the correction head 10 is to correct the buckle edge (i.e., male and female buckles) of the floor deck body before laying. The buckle edge of the floor deck body is very easy to cause deformation during transportation, hoisting, etc., which affects normal installation. Using the correction head 10 to correct it before installation can facilitate the construction. When in use, the correction head 10 is placed in a horizontal plane and pressed against one end of the male and female buckles in the manner of being attached to the floor deck body. The worker then holds the gripping handle 12 and slides it to the other side along the opening direction of the buckle edge (i.e. the direction of the buckle edge) to correct the deformed buckle edge. When resetting the buckle edge after paving, it is necessary to make the male buckle and the female buckle fit as closely as possible. Therefore, the reset head 11 is designed as a complete teardrop-shaped structure. The tip angle of the teardrop-shaped reset head 11 is larger, and the semi-teardrop-shaped correction head 10 only needs to correct the buckle edge so that it can be normally buckled and connected. Therefore, the semi-teardrop-shaped correction head 10 is selected to ensure the effect while simplifying the structure. After the steel truss floor slab is installed, the reset head 11 is inserted into the groove at one end of the buckle edge of the floor deck body. When the reset head 11 is tightly attached to the buckle edge and slides to the other end, the buckle edges of the two floor deck bodies can be combined more tightly, which reduces or even avoids the occurrence of slurry leakage.

[0037] In this embodiment, a connecting rod 13 is also included, and the correction head 10 and the reset head 11 are both installed on the holding handle 12 through the connecting rod 13. The connecting rod 13 has a first connecting portion 15 and a second connecting portion 14. The first connecting portion 15 is connected to the end of the holding handle 12, and the second connecting portion 14 is connected to the correction head 10 or the reset head 11. The first connecting portion 15 and the second connecting portion 14 are bent in opposite directions respectively, so that the first connecting portion 15 and the second connecting portion 14 are both in an arc structure. In this embodiment, the holding handle 12 is arc-shaped, and the extension lines of the central axes of the two connecting rods 13 intersect at the arc center of the holding handle 12. Because the floor decking body is placed on the ground or fixed on the top during correction or reset work, construction workers need to bend over or look up to operate. If the connecting rod 13 and the holding handle 12 are both coaxial straight rods, the operation is more laborious. The connecting rod 13 is designed as an "S"-shaped structure as a whole. After being installed on the holding handle 12, the whole structure becomes a continuously curved serpentine structure. In addition, the extension line of the central axis of the connecting rod 13 intersects with the arc center of the holding handle 12, making the entire correction device more labor-saving when used and convenient for workers to operate.

[0038] S6, installing the reserved opening forming assembly at the set position of the steel truss floor deck, and pouring concrete;

[0039] The reserved hole forming assembly includes an inner base 17, an outer base 16 and an embedded pipe 18. The rib truss floor deck has a floor deck body 22 and a steel truss installed on the floor deck body 22. The inner base 17 is arranged on the top surface of the floor deck body 22. The top surface of the outer base 16 is provided with a plug connector 19. The plug connector 19 of the outer base 16 is detachably connected to the inner base 17 after passing through the floor deck body 22 from the lower part of the floor deck body 22. The top surface is attached to the bottom surface of the floor decking body 22, and the bottom surface of the inner base 17 is attached to the top surface of the floor decking body 22; the embedded pipe 18 is vertically installed on the top of the inner base 17; the inner base 17 has a vertical installation channel 20, the plug connector 19 and the embedded pipe 18 are respectively plugged into the two ends of the installation channel 20 in the vertical direction, and the embedded pipe 18 is provided with a through middle channel 21 along the vertical direction, and the middle channel 21 is connected to the installation channel 20. As shown in the figure, the inner base 17 and the outer base 16 are both trumpet-shaped structures. The inner base 17 is disc-shaped, and a plug connector 19 is integrally formed on its top surface. The inner surface of the plug connector 19 is provided with an external thread. The trumpet-shaped outer base is convenient for connecting with the inner base and improving the sealing effect of the hole. The disc-shaped outer base is convenient for twisting and disassembling. The top surface of the inner base 17 is also provided with a sealing gasket, so that after fixing, the top surface of the inner base 17 is tightly attached to the bottom surface of the floor deck body 22, and there will be no leakage. The periphery of the top surface of the inner base 17 extends radially outward to form a trumpet-shaped flange. The inner base is designed to be trumpet-shaped, firstly to enhance the structural stability. The flange of the inner base can limit each other with the steel bars of the steel truss floor deck, which is also convenient for fixing the inner base, and has the advantages of not being easy to tip over when pouring concrete. The inner base 17 is also arranged vertically, and an installation channel 20 is opened axially. Internal threads are arranged at both ends of the installation channel 20. The plug connector 19 is threadedly connected to the bottom of the installation channel 20, and the embedded pipe 18 is installed on the top of the installation channel 20 in a threaded connection manner. The middle channel 21 of the embedded pipe 18 is connected to the installation channel 20 and is coaxial. After pouring is completed, the inner base 17 and the embedded pipe 18 will form the reserved holes we need in the concrete 23, which can be used as wire holes or wire openings of the embedded pipe 18. It should be noted that after pouring is completed, the top of the embedded pipe 18 should extend to the outside of the concrete 23, that is, the upper part as shown in the figure. Such a design can protect the floor slab while also protecting the subsequent threading. After the installation is completed, the inner base 17 and the outer base 16 will form a clamping structure on the floor deck body 22. Since the plug connector 19 passes through the floor deck body 22, and the diameter of the inner base 17 is larger than the plug connector 19, and the top surface of the outer base 16 is tightly attached to the floor deck body 22, it is only necessary to open a hole in the floor deck according to the size of the plug connector 19. After the inner base 17 and the outer base 16 are installed, the clamping of the two will completely block the hole, thus avoiding leakage of slurry.At the same time, the external base can be disassembled and recycled after pouring, effectively reducing construction costs.

[0040] S7, after pouring, the concrete is cured and the support system is removed. Before pouring, the beam and slab steel bars need to be inspected in a hidden way, and the types, specifications, quantity, and position of the longitudinal force-bearing steel bars, the connection methods, joint positions, number of joints, percentage of joint area, etc. of the steel bars, the types, specifications, quantity, and spacing of the stirrups and transverse steel bars, and the specifications, quantity, and position of the embedded parts are checked. After the hidden acceptance of the beam and slab steel bars and the reserved embedded parts is completed, when pouring the concrete casting formwork, the pouring cannot be concentrated. During the process of impacting the template casting, the vibration time should make the slurry appear on the concrete surface, without bubbles and sinking. After the concrete pouring is completed, the concrete surface is polished and then covered with plastic film for curing and watering. After the concrete reaches the required strength, the support system is removed. The support system here includes the side support system 1, the beam template 2 and its support system, and other auxiliary support and protection systems that will be set up in actual construction but not mentioned in this embodiment, etc., which can be understood by technicians in this technical field and will not be repeated here.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A slurry leakage-proof reserved hole forming component, characterized in that: It includes an inner base and an outer base, the inner base is arranged on the top surface of the floor deck body of the steel truss floor deck, the top surface of the outer base is provided with a plug connector, the plug connector of the outer base passes through the floor deck body from the lower part of the floor deck body and is detachably connected to the inner base, and the inner base and the outer base clamp the floor deck body.

2. The anti-leakage slurry type reserved hole forming component according to claim 1, characterized in that: It also includes a pre-buried pipe, which is vertically arranged and detachably installed on the top of the inner base.

3. The anti-leakage slurry type reserved hole forming component according to claim 1, characterized in that: The outer base is a disc-shaped structure, and the plug connector is integrally formed and arranged on the top surface of the outer base, so that the outer base and the plug connector are overall in a trumpet-shaped structure.

4. The anti-leakage slurry type reserved hole forming component according to claim 2, characterized in that: The inner base has a vertically penetrating installation channel, the plug connector is detachably installed at the bottom of the installation channel, and the embedded pipe is detachably installed at the top of the installation channel.

5. The anti-leakage slurry type reserved hole forming component according to claim 3, characterized in that: The bottom surface of the inner base is in contact with the top surface of the floor deck body; the top surface of the outer base is in contact with the bottom surface of the floor deck body.

6. The anti-leakage slurry type reserved hole forming component according to claim 4, characterized in that: The embedded pipe is provided with a through middle channel along the vertical direction, and the middle channel is connected with the installation channel.

7. The anti-leakage slurry type reserved hole forming component according to claim 3, characterized in that: The periphery of the top surface of the inner base extends radially outward, so that the inner base has a trumpet-shaped structure as a whole.

8. The anti-leakage slurry type reserved hole forming component according to claim 3, characterized in that: The top surface of the outer base is also provided with a sealing gasket for sealing the gap between the outer base and the floor deck body.

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