Auxiliary tool for construction of floor support plate sleeve

Abstract

The auxiliary tool is characterized in that a pull rod and a positioning cone are coaxially arranged, the pull rod is connected to the small-diameter end of the positioning cone, and a supporting plate is arranged at the end, away from the positioning cone, of the pull rod; the supporting plate is adjustably arranged on the pull rod in a sliding mode and limited through the lower locking piece. The maximum diameter of the positioning cone exceeds the diameter of the sleeve, when the sleeve is positioned on the floor support plate, the pull rod penetrates through the floor support plate and an inner cavity of the sleeve, and the positioning cone and the supporting plate are arranged on the two sides of the floor support plate respectively. The sleeve and the pull rod are coaxially pressed on the floor support plate through the approach of the positioning cone and the support plate; the common quality problems of deviation, inclination, grout leakage at joints and the like of the sleeve in the concrete pouring process and the construction operation can be solved, and the problems that the use function of the sleeve is reduced, reworking and repairing are caused, the material and labor cost is increased, and the overall forming quality of a steel bar truss concrete floor is affected are solved. And the defect that the auxiliary embedded fixing device cannot be recycled is overcome.

Description

Technical Field

[0001] This utility model relates to the field of non-removable steel truss floor decking construction, specifically to an auxiliary tool for floor decking sleeve construction. Background Technology

[0002] Currently, there are no specialized auxiliary tools or methods for pre-embedding sleeves in floor decking, and the methods differ depending on the sleeve material. For the first type, steel sleeves, the general method is to first make a positioning hole in the galvanized iron plate at the bottom of the floor decking, then weld external lugs (for screw holes) to the lower end of the steel sleeve, and finally use self-tapping screws to pre-embed and fix the sleeve according to the hole positions. Another method for steel sleeves is to directly spot weld the sleeve to the galvanized iron plate after making the positioning hole. For the second type, PVC sleeves, the current method uses wire binding and nails for fixing. The following problems exist with the following types of steel sleeves and PVC sleeves: (1) Pre-drilling holes in the plate surface reduces the strength of the galvanized iron plate at the hole location and increases the vertical deflection. According to the traditional pre-embedding method, the plate body at this location will deform during concrete pouring after the sleeve is installed, causing the sleeve to be misaligned or eccentric; (2) When drilling holes in the plate surface, it is difficult to control the accuracy of the hole size. Because the hole size must be smaller than the inner diameter of the sleeve, there is no special hole-drilling tool. If the hole is too large, it will cause grout leakage at the joint between the sleeve and the galvanized plate. If the hole is too small, it will cause secondary hole drilling; (3) Using external ears and self-tapping screws to fix the sleeve. When the steel sleeve is welded to the galvanized plate, the weld point will rust. At the same time, because the galvanized plate is thin, the weld is not strong enough and there is a risk of weld penetration, which causes common problems such as leakage of grout during concrete pouring. Also, because the sleeve is a cantilever component, there is axial offset, which affects the forming quality and the function of use. (5) For PVC sleeves, the traditional method of binding with wire and nailing is not precise. The leakage of grout between the sleeve and the galvanized plate is high, which affects the pre-embedded quality of the sleeve and the overall construction forming quality of the steel truss concrete floor.

[0003] There are no standardized auxiliary pre-embedded fixing devices or methods for pre-embedded sleeves on floor decking. Considering that traditional methods for pre-embedding through-slab sleeves in floor decking, such as using external lugs with self-tapping screws, welding, and binding with wire and nails, have poor stability, a high rate of sleeve displacement and eccentricity, and common leakage at the opening interface, the pre-embedded sleeves are ultimately reduced in accuracy, with corrosion and leakage at the weld points, poor forming quality, and even displacement rendering them unusable. This adversely affects the overall forming quality of the reinforced concrete floor slab and the control of construction costs.

[0004] Therefore, to solve the above problems, an auxiliary tool is needed for the construction of floor deck sleeves. This tool should be able to solve common quality problems such as sleeve misalignment, tilting, and grout leakage at joints during concrete pouring and construction. It should also address the issues of reduced sleeve functionality, rework and repairs, increased material and labor costs, and the impact on the overall forming quality of reinforced concrete floor slabs. Furthermore, it should overcome the defect that auxiliary pre-embedded fixing devices cannot be recycled. Utility Model Content

[0005] In view of this, the purpose of this utility model is to overcome the defects in the prior art and provide an auxiliary tool for the construction of floor deck sleeves. It can solve common quality problems such as sleeve misalignment, tilting, and grout leakage at joints during concrete pouring and construction operations, solve the problem of reduced sleeve functionality, rework and repair, increased material and labor costs, and affect the overall forming quality of reinforced concrete floor slabs, and overcome the defect that auxiliary pre-embedded fixing devices cannot be recycled.

[0006] This utility model discloses an auxiliary tool for the construction of floor decking sleeves, including a sleeve positioning assembly. The sleeve positioning assembly includes a positioning cone, a pull rod, a support plate, and a lower locking component. The pull rod is coaxially arranged with the positioning cone and connected to the small-diameter end of the positioning cone. The support plate is located at the end of the pull rod away from the positioning cone. The support plate is slidably and adjustablely mounted on the pull rod and is limited by the lower locking component.

[0007] The maximum diameter of the positioning cone exceeds the diameter of the preset sleeve. When the sleeve is positioned on the floor deck, the tie rod passes through the floor deck and the inner cavity of the sleeve. The positioning cone and the support plate are respectively located on both sides of the floor deck.

[0008] By bringing the positioning cone close to the support plate, the sleeve and tie rod are coaxially pressed onto the floor deck.

[0009] Furthermore, the sleeve positioning assembly also includes an upper locking member, the pull rod passes through the positioning cone, the positioning cone is slidably set on the pull rod and limited by the upper locking member.

[0010] Furthermore, it also includes a floor decking opening assembly, which includes a cutter and a retainer.

[0011] The retainer includes a drive end sleeved on the bottom end of the pull rod and a support end extending radially outward along the pull rod;

[0012] The cutter is disposed at the support end and has a cutting edge facing the floor deck;

[0013] The cutter is driven by the retainer to rotate around the tie rod shaft to cut the floor decking;

[0014] Before the cutter cuts the floor decking, the support plate is controlled to either disengage from the pull rod or be within the cutter's cutting range; more specifically, the locking mechanism is adjusted to remove the support plate from the pull rod or to place it within the cutter's cutting range. This ensures that the cutter's ability to make openings in the floor decking is not affected.

[0015] Furthermore, the cutter can be limited to slide along the length of the support end.

[0016] Furthermore, the cutter includes two blades arranged opposite each other on both sides of the pull rod.

[0017] Furthermore, a groove is provided on the support end for the cutter to slide, and the cutter is limited to a set position in the groove by fasteners.

[0018] Furthermore, the floor decking opening assembly also includes a protective cover; the protective cover has a collection groove and a connecting end, the connecting end is sleeved on the drive end of the retainer, and the opening of the collection groove faces the floor decking at the bottom of the sleeve, and the retainer is covered inside the collection groove.

[0019] Furthermore, the retainer is positioned within the collection trough by being driven to move up and down.

[0020] Furthermore, it also includes a power source for driving the cage to rotate about the tie rod axis, the power source including an electric motor.

[0021] This solution also discloses a method for constructing floor decking sleeves based on the aforementioned auxiliary tool, including the following construction steps:

[0022] S1. After the floor decking is installed, determine the center point of the sleeve;

[0023] S2. A tie rod hole is made with the center point as the center, and the diameter of the tie rod hole is the same as the diameter of the tie rod;

[0024] S3. The sleeve axis is made to pass through the center point by means of the sleeve positioning assembly;

[0025] S3a. Pass the tie rod through the tie rod hole;

[0026] S3b. Install a sleeve above the floor deck to accommodate the tie rod;

[0027] S3c. A positioning cone through which the tie rod passes is provided above the sleeve, and the positioning cone is prevented from moving upward by the upper locking member;

[0028] S3d. A support plate through which the tie rod passes is installed under the floor deck, and a lower locking member is used to lock the support plate;

[0029] S3e. Adjust the upper locking element and / or the lower locking element to bring the positioning cone and the support plate closer together, and adjust the axis of the sleeve to coincide with the center point;

[0030] S4. Floor decking pouring, sleeve pre-embedding;

[0031] S5. After the concrete strength reaches the preset index, remove the support plate and adjust the lower locking part to reset so that the axis of the positioning cone passes through the center point;

[0032] S6. Assemble the perforated components for the floor decking;

[0033] S6a. Set the cutter to the preset position of the holder and adjust the cutting radius of the cutter;

[0034] S6b. The protective cover is fitted onto the retainer with the cutter, and the drive end of the retainer passes through the connecting end of the protective cover;

[0035] There is a gap between the driving end and the connecting end so that the protective cover maintains its original posture after the driving end is driven to rotate by the power source.

[0036] S7. Place the retainer in the assembled floor decking opening assembly onto the bottom end of the tie rod in the sleeve positioning assembly;

[0037] S8. Fix the power output end of the power source to the drive end of the cage;

[0038] S9. The cutter on the retainer is driven by a power source to make holes in the floor decking;

[0039] S10. Remove the sleeve positioning assembly and the floor decking opening assembly.

[0040] The beneficial effects of this utility model are as follows: This utility model discloses an auxiliary tool for the construction of floor decking sleeves. This reusable device saves costs. The device is safe, reliable, and easy to operate. It can achieve the dual functions of precise positioning and fixing of the pre-embedded sleeve based on the floor decking and opening holes in the galvanized iron plate at the sleeve position. It standardizes the construction method of sleeve pre-embedding, improves the one-time pre-embedding installation accuracy of the sleeve based on the floor decking and the quality of the floor decking opening, improves the sleeve installation and forming accuracy, reduces the problem of grout leakage at the sleeve position, and is simple to install and operate. It can improve the overall construction and forming quality of reinforced concrete floor slabs and the quality of professional engineering. It is highly practical, the tool and device are reusable, and the structure is simple, making production easier. Attached Figure Description

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0042] Figure 1 This is a schematic diagram of the structure used in the sleeve positioning assembly of this utility model;

[0043] Figure 2 This is a schematic diagram of the structure used in the floor decking perforation assembly of this utility model;

[0044] Figure 3 This utility model Figure 2 A schematic diagram of the cross-sectional structure;

[0045] Figure 4 This is a structural schematic diagram of the casing construction auxiliary tool of this utility model;

[0046] Figure 5 This is a top view of the perforated component of the floor decking. Detailed Implementation

[0047] Figure 1 The diagram shows the structure of this utility model. In this embodiment, the auxiliary tool for constructing floor decking sleeves includes a sleeve positioning assembly. The sleeve positioning assembly includes a positioning cone 1, a pull rod 2, a support plate 3, and a lower locking element. The pull rod 2 is coaxially arranged with the positioning cone 1 and connected to the small-diameter end of the positioning cone 1. The support plate 3 is located at the end of the pull rod 2 away from the positioning cone 1. The support plate 3 is slidably adjusted on the pull rod 2 and limited by the lower locking element. The sleeve positioning assembly also includes an upper locking element. The pull rod 2 passes through the positioning cone 1, and the positioning cone 1 is slidably adjusted on the pull rod 2 and limited by the upper locking element. The maximum diameter of the positioning cone 1 exceeds the diameter of the preset sleeve. When the sleeve is positioned on the floor decking, the pull rod 2 passes through the floor decking and the inner cavity of the sleeve. The positioning cone 1 and the support plate 3 are located on opposite sides of the floor decking. By bringing the positioning cone 1 and the support plate 3 closer together, the sleeve and the pull rod 2 are coaxially pressed against the floor decking.

[0048] More specifically, the positioning cone 1 is a frustoconical shape centrally fitted onto the tie rod 2. The tie rod 2 is rod-shaped, and both its upper and lower ends have external threads. The upper and lower locking parts are nuts I and II, respectively, corresponding to the threaded connections at the upper and lower ends of the tie rod 2. The support plate 3 is a disc-shaped shape centrally fitted onto the tie rod 2. The maximum diameter of the positioning cone 1 exceeds the diameter of the preset sleeve, and the diameter of the support plate 3 also exceeds the diameter of the preset sleeve. After the floor decking is constructed, the sleeve is similarly inserted through the tie rod 2 that passes through the floor decking. By using the upper and lower locking parts to fasten the positioning cone 1 and the support plate 3, the positioning cone 1 and the support plate 3 are brought closer together. Due to the conical surface of the positioning cone 1, the axis of the pre-set sleeve is gradually brought closer to the position that coincides with the axis of the tie rod 2, until the sleeve and the tie rod 2 are coaxial and pressed tightly onto the floor deck by the positioning cone 1 and the support plate 3; thus completing the positioning of the sleeve. The whole process is more efficient and accurate in positioning the sleeve, with high construction quality. In addition, the limiting structure of the sleeve clamping form can also resist the disturbance of pouring, so that the sleeve is pre-embedded in the set position of the pouring layer.

[0049] This embodiment also includes a floor decking opening assembly, which includes a cutter 6 and a retainer 5. The retainer 5 includes a drive end sleeved on the bottom end of the tie rod 2 and a support end extending radially outward along the tie rod 2. The cutter 6 is disposed on the support end and can be limited to slide along the length direction of the support end. A groove 51 is formed on the support end for the cutter 6 to slide, and the cutter 6 is limited to a set position in the groove 51 by fasteners. The cutter 6 has a cutting edge facing the floor decking. The cutter 6 is driven by the retainer 5 to rotate and cut the floor decking around the axis of the tie rod 2. The cutter 6 includes two cutters arranged opposite to each other on both sides of the tie rod 2. Before the cutter 6 cuts the floor decking, the support plate 3 is removed from the tie rod 2, or the support plate 3 is within the cutting range of the cutter 6.

[0050] More specifically, such as Figure 4 and Figure 5 As shown, the retainer 5 is approximately T-shaped, with the upper edge of the T serving as the support end for opening the slide groove 51 and assembling the cutter 6. The slide groove 51 is a waist-shaped hole opened along the length of the support end. The fastener for assembling the cutter 6 is a nut III. The outer surface of the end of the cutter 6 has external threads, and the threaded end of the cutter 6 passes through the slide groove 51. The cutter 6 also has a flange to prevent it from falling off. During installation, its overall width direction is parallel to the opening direction of the slide groove 51, further improving safety. The controllable sliding and locking of the cutter 6 in the slide groove 51 is achieved by tightening and loosening the nut. The assembly positions of the two cutters 6 are arranged in the retainer 5. The center is relatively symmetrical, and when opening the hole, it can directly correspond to the diameter of the floor decking to be cut according to the sleeve size specification, which is more versatile; the lower edge of the "T" shape serves as the driving end, and its top end is coaxially sleeved on the bottom end of the tie rod 2. The bottom end is sleeved on the connecting end of the protective cover 4 and extends out to connect to the power source. It is driven to rotate, so that the center of the hole opened by the cutter 6 and the center of the sleeve are both located on the axis of the tie rod 2, which is more concentric. Moreover, the rotation mode of the retainer 5 is a rounded rotation, which is more conducive to forming a round hole. It should be understood that the part of the bottom end of the tie rod 2 where the retainer 5 is sleeved is a smooth rod, so that the retainer 5 can rotate smoothly and drive the cutter 6 to complete the opening of the floor decking.

[0051] In this embodiment, the floor decking opening assembly further includes a protective cover 4. The protective cover 4 is generally cylindrical with an open top and a closed bottom. The protective cover 4 has a collection groove and a connecting end. The connecting end is sleeved on the driving end of the retainer 5, and the opening of the collection groove faces the floor decking at the bottom of the sleeve. The retainer 5 is covered in the collection groove. The connecting end extends downward from the center of the protective cover 4 in a sleeve-like shape. In use, the connecting end is sleeved on the driving end of the retainer 5. The driving end passes through the connecting end to engage the power output end of the power source. More specifically, this solution also includes a power source for driving the retainer 5 to rotate around the axis of the pull rod 2. The power source is a handheld drill 7. The driving end is inserted into the power output end of the handheld drill 7 and secured. In use, the handheld drill 7 drives the driving end to drive the cutter 6 to perform the opening action. The debris from the opening can be collected by the protective cover 4, and there is no risk of cutting sparks falling, thus improving safety.

[0052] In this embodiment, the retainer 5 is driven to move up and down within the collection groove; this facilitates operation and adjustment.

[0053] This solution also discloses a method for constructing floor decking sleeves based on the aforementioned auxiliary tool, including the following construction steps:

[0054] S1. After the floor decking is installed, determine the center point of the sleeve;

[0055] S2. A hole for the pull rod 2 is made with the center point as the center, and the diameter of the hole for the pull rod 2 is the same as the diameter of the pull rod 2;

[0056] S3. The sleeve axis is made to pass through the center point by means of the sleeve positioning assembly;

[0057] S3a. Make the tie rod 2 pass through the hole in the tie rod 2;

[0058] S3b. A sleeve for mounting tie rod 2 is installed above the floor deck;

[0059] S3c. A positioning cone 1 through which the pull rod 2 passes is provided above the sleeve, and the positioning cone 1 is prevented from moving upward by the upper locking member;

[0060] S3d. A support plate 3 through which the tie rod 2 passes is provided under the floor deck, and a lower locking member is used to lock the support plate 3;

[0061] S3e. Adjust the upper locking member and / or the lower locking member to bring the positioning cone 1 and the support plate 3 closer together, and adjust the axis of the sleeve to coincide with the center point; the meaning of "and / or" is that the upper locking member or the lower locking member can be operated independently to bring the positioning cone 1 and the support plate 3 closer together, or the upper locking member or the lower locking member can be operated simultaneously to bring the positioning cone 1 and the support plate 3 closer together, which will not be elaborated here.

[0062] S4. Floor decking pouring, sleeve pre-embedding;

[0063] S5. After the concrete strength reaches the preset index, remove the support plate 3 and adjust the lower locking part to reset so that the axis of the positioning cone 1 passes through the center point;

[0064] In this design, the radial dimension of the support plate exceeds that of the sleeve, forming a stable support structure for the sleeve. Therefore, during construction, the support plate is disassembled first, and then the hole is drilled. If the radial dimension of the support plate does not exceed the hole size, the hole is drilled directly, which will not be elaborated here.

[0065] S6. Assemble the perforated components for the floor decking;

[0066] S6a. Set the cutter 6 to the preset position of the holder 5 and adjust the cutting radius of the cutter 6;

[0067] S6b. The protective cover 4 is fitted onto the retainer 5 with the cutter 6, and the drive end of the retainer 5 passes through the connecting end of the protective cover 4;

[0068] There is a gap between the driving end and the connecting end so that the protective cover 4 maintains its original posture after the driving end is driven to rotate by the power source.

[0069] S7. The retainer 5 in the assembled floor decking opening assembly is fitted onto the bottom end of the tie rod 2 in the sleeve positioning assembly, and the protective cover 4 is fastened to the floor decking. This fastening state is generally manually supported, and the support of the protective cover and the opening action can be completed by a single person.

[0070] S8. Fix the power output end of the power source to the drive end of the cage 5;

[0071] S9. The cutter 6 installed on the retainer 5 is driven by a power source to make holes in the floor decking;

[0072] During the rotation of the cage, the cage is simultaneously positioned and guided by the protective cover and the tie rod, improving the efficiency and accuracy of the opening process;

[0073] S10. Remove the sleeve positioning assembly and the floor decking opening assembly.

[0074] This reusable device saves costs and is safe, reliable, and easy to operate. It achieves the dual function of precise positioning and fixing of pre-embedded sleeves based on floor decking and opening holes in the galvanized iron plate at the sleeve location. It standardizes the construction method of sleeve pre-embedding, improves the one-time pre-embedding installation accuracy of sleeves based on floor decking and the quality of floor decking openings, improves the sleeve installation and forming accuracy, reduces grout leakage at the sleeve location, and is easy to install and operate. It can improve the overall construction and forming quality of reinforced concrete floor slabs and the quality of professional projects. It is highly practical, the tools and devices are reusable, and the structure is simple, making production easier.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An auxiliary tool for the construction of floor decking sleeves, characterized in that: The device includes a sleeve positioning assembly, which comprises a positioning cone, a pull rod, a support plate, and a lower locking element. The pull rod is coaxially arranged with the positioning cone and connected to the small-diameter end of the positioning cone. The support plate is located at the end of the pull rod away from the positioning cone. The support plate is slidably and adjustablely disposed on the pull rod and is limited by the lower locking element. The sleeve positioning assembly also includes an upper locking member. The pull rod passes through the positioning cone, the small-diameter end of the positioning cone is close to the support plate, and the positioning cone is slidably set on the pull rod and limited by the upper locking member. The maximum diameter of the positioning cone exceeds the diameter of the preset sleeve. When the sleeve is positioned on the floor deck, the tie rod passes through the floor deck and the inner cavity of the sleeve. The positioning cone and the support plate are respectively located on both sides of the floor deck. By bringing the positioning cone close to the support plate, the sleeve and tie rod are coaxially pressed onto the floor deck.

2. The auxiliary tool for floor decking sleeve construction according to claim 1, characterized in that: It also includes a floor decking opening assembly, which includes a cutter and a retainer. The retainer includes a drive end sleeved on the bottom end of the pull rod and a support end extending radially outward along the pull rod; The cutter is disposed at the support end and has a cutting edge facing the floor deck; The cutter is driven by the cage to rotate around the tie rod shaft to cut the floor decking.

3. The auxiliary tool for floor decking sleeve construction according to claim 2, characterized in that: Before the cutter cuts the floor decking, the support plate is controlled to either detach from the tie rod or be within the cutting range of the cutter.

4. The auxiliary tool for floor decking sleeve construction according to claim 2, characterized in that: The cutter can be limited to slide along the length of the support end.

5. The auxiliary tool for floor decking sleeve construction according to claim 2, characterized in that: The cutter includes two blades arranged opposite each other on both sides of the pull rod.

6. The auxiliary tool for floor decking sleeve construction according to claim 2, characterized in that: The support end has a groove for the cutter to slide in, and the cutter is limited to a set position in the groove by fasteners.

7. The auxiliary tool for floor decking sleeve construction according to claim 2, characterized in that: The floor decking opening assembly also includes a protective cover; the protective cover has a collection groove and a connecting end, the connecting end is sleeved on the drive end of the retainer, and the opening of the collection groove faces the floor decking at the bottom of the sleeve, and the retainer is covered inside the collection groove.

8. The auxiliary tool for floor decking sleeve construction according to claim 7, characterized in that: The retainer is driven to move up and down within the collection trough.

9. The auxiliary tool for floor decking sleeve construction according to claim 2, characterized in that: It also includes a power source for driving the cage to rotate about the tie rod axis.

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