Telescopic through-wall steel sleeve with adjusting device
The retractable through-wall steel sleeve with adjustment device solves the problem of interference between precast components and composite slabs, and achieves the avoidance effect during on-site installation. It is suitable for cast-in-place concrete beams and walls of various sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-03-20
AI Technical Summary
In prefabricated buildings using precast components and aluminum formwork, embedded through-wall sleeves are prone to interference with composite slabs and reinforcing bars, and existing solutions lead to damage or cracking of the composite slabs.
A retractable through-wall steel sleeve with an adjustment device is used, including inner and outer sleeves, positioning screws, and adjustable spring steel plates. By adjusting the sleeve length, it avoids the composite plate and reinforcing bars, ensuring smooth installation.
It avoids interference between the composite slab and the reinforcing steel during on-site installation, protects the integrity of the composite slab, and is suitable for cast-in-place concrete beams and walls of different sizes, making installation convenient.
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Figure CN224017890U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building pipe technology field, concretely relates to a telescopic wall -penetrating steel sleeve with embedded adjusting device. BACKGROUND
[0002] The steel reinforced concrete superimposed slab (hereinafter referred to as superimposed slab) is a new type of building structure prefabricated component, which is composed of steel bars, cement, yellow sand and other auxiliary materials, and is a new type of superimposed slab with main skeleton in modern industry and civil building. The wall -penetrating sleeve is a kind of pipe component used more in building engineering, which is used for connecting the pipe through the beam or wall structure, which is usually made of metal or plastic, etc. It has the characteristics of good pressure resistance, high temperature resistance and corrosion resistance.
[0003] In the installation process of the prefabricated component + aluminum mold assembly type building, the embedded wall -penetrating sleeve will interfere with the superimposed slab and the steel bar. At present, the method to solve the problem is to groove on the corresponding position of the superimposed slab, but this kind of processing method is more troublesome, causes the damage of the edge of the superimposed slab, and even may cause the local cracking of the superimposed slab. UTILITY MODEL CONTENTS
[0004] In view of the above technical problems, the utility model provides a telescopic beam -penetrating steel sleeve with adjusting device.
[0005] A telescopic wall -penetrating steel sleeve with adjusting device, comprising: a first sleeve and a second sleeve located outside the first sleeve, and an elastic sheet body is arranged outside the second sleeve.
[0006] A telescopic wall -penetrating steel sleeve with adjusting device is provided, and a positioning groove is arranged on one end of the first sleeve, which is connected with the second sleeve.
[0007] A telescopic wall -penetrating steel sleeve with adjusting device is provided, and a convex part is arranged on the side of the first sleeve away from the groove.
[0008] A telescopic wall -penetrating steel sleeve with adjusting device is provided, and the convex part is a circular positioning screw.
[0009] A telescopic wall -penetrating steel sleeve with adjusting device is provided, and at least one fixing hole is arranged on the top of the second sleeve.
[0010] A telescopic wall -penetrating steel sleeve with adjusting device is provided, and the elastic sheet structure is a spring steel sheet comprising at least one positioning hole.
[0011] A telescopic wall -penetrating steel sleeve with adjusting device is provided, and the fixing is two.
[0012] The utility model provides a telescopic wall steel sleeve with adjusting device, the second sleeve inner diameter is not less than the first sleeve outer diameter.
[0013] The utility model provides a telescopic wall steel sleeve with adjusting device, the positioning hole is three.
[0014] The utility model provides a telescopic wall steel sleeve with adjusting device, the first sleeve positioning hole round center and the positioning groove's mid -axis are located same axis.
[0015] Compared with the prior art, the utility model discloses a telescopic sleeve, which can adjust the length of the sleeve according to actual conditions during installation, avoids the composite slab and steel bars during on-site installation, and facilitates on-site installation. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the telescopic wall steel sleeve with adjusting device structure schematic drawing of the utility model.
[0017] Figure 1-1 It is the telescopic wall steel sleeve with adjusting device section schematic drawing of the utility model.
[0018] Figure 1-2 It is the telescopic wall steel sleeve with adjusting device plan view of the utility model.
[0019] Figure 2 It is the first sleeve structure schematic drawing of the utility model.
[0020] Figure 2-1 It is the first sleeve plan view of the utility model.
[0021] Figure 3 It is the second sleeve structure schematic drawing of the utility model.
[0022] Figure 3-1 It is the second sleeve plan view of the utility model.
[0023] Figure 4 It is the elastic sheet structure schematic drawing of the utility model.
[0024] Figure 4-1 It is the elastic sheet structure plan view of the utility model.
[0025] 100, first sleeve; 110, positioning groove; 111, groove opening part; 112, groove closing part; 120, positioning screw; 200, second sleeve; 210, first fixing hole of second sleeve; 220, second fixing hole of second sleeve; 300, elastic sheet body; 310, spring steel sheet positioning hole; 311, first positioning hole of spring steel sheet; 312, second positioning hole of spring steel sheet; 313, third positioning hole of spring steel sheet; 320, positioning bolt. DETAILED DESCRIPTION
[0026] The technical solutions of the present application will be described in detail below Figures 1-4 It should be apparent that the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0027] It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intermediate elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intermediate elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", "front", "back" and similar expressions used in the specification are for illustrative purposes only.
[0028] As shown in Figure 1 , Figure 1-1 , Figure 1-2 A telescopic through-wall steel sleeve with an adjusting device includes a first sleeve 100 and a second sleeve 200 located outside the first sleeve. An elastic sheet body 300 is provided outside the second sleeve.
[0029] As shown in Figure 2 , Figure 2-1 The first sleeve 100 is cylindrical. A cutting groove 110 is provided at one end of the first sleeve 100, and a positioning screw 120 is provided at the other end of the first sleeve 100. The central axis of the groove 110 and the center of the positioning screw 120 are located on the same straight line. The groove 110 includes a groove opening part 111 and a groove closing part 112. The groove opening part 111 is located at the end of the first sleeve 100, and the groove closing part 112 is located at the middle of the first sleeve 100.
[0030] As shown in Figure 3 , Figure 3-1As shown, the second sleeve 200 is cylindrical and has multiple fixing holes. In this embodiment, there are two fixing holes, namely the first positioning hole 210 and the second positioning hole 220 of the second sleeve. The centers of the first positioning hole 210 and the second positioning hole 220 of the second sleeve are located on the same straight line parallel to the central axis of the second sleeve.
[0031] The inner diameter of the second sleeve 200 is not less than the outer diameter of the first sleeve 100, so that the first sleeve 100 can be smoothly inserted into the second sleeve 200. When inserting the first sleeve 100 into the second sleeve 200, the groove of the first sleeve 100 should be aligned with the positioning hole of the second sleeve 200 to ensure the smooth insertion of the positioning bolt 320. In this embodiment, the outer wall of the first sleeve 100 and the inner wall of the second sleeve 200 are in tight movable contact, and the first sleeve 100 can slide along the inner sidewall of the second sleeve 200.
[0032] like Figure 4 , Figure 4-1 As shown, the elastic sheet 300 is a spring steel sheet, which is generally rectangular in shape. The spring steel sheet 300 has multiple positioning holes 310. In this embodiment, the spring steel sheet has three positioning holes: a first positioning hole 311, a second positioning hole 312, and a third positioning hole 313. The centers of the three positioning holes are located on the central axis of the spring steel sheet, and the distance between the centers of the three positioning holes is the same as the distance between the centers of the two sleeve positioning holes, indicating a uniform distribution. Those skilled in the art will anticipate that the number of positioning holes 310 on the spring steel sheet 300 can be adjusted according to actual needs, and is not limited to a fixed three.
[0033] The spring steel sheet 300 is fixed to the outer wall of the second sleeve by a positioning bolt 320. The lower part of the bolt 320 extends out of the inner wall of the second sleeve. When the first sleeve is inserted into the second sleeve, the lower part of the bolt fits into the groove 110 of the first guide tube. The outer diameter of the positioning bolt 320 is not greater than the width of the groove 110, allowing the first sleeve to slide linearly along the fixed direction. When the first sleeve 100 extends a certain distance into the second sleeve 200, the positioning screw 120 on the first sleeve 100 will engage with the end of the spring steel sheet 300, serving as a limit.
[0034] When the first sleeve 100 is fully inserted into the second sleeve 200, the positioning screw 120 can fix the first sleeve 100 and the second sleeve through the positioning hole 313.
[0035] When the first sleeve 100 needs to be pulled out of the second sleeve 200, the positioning screw 120 is pulled out of the positioning hole 313, fixed to the first sleeve, and the first sleeve 100 is pulled out along the longitudinal direction of the groove 110, at this time, the positioning screw 120 plays a limiting role.
[0036] The technical scheme of the utility model discloses through setting up inner and outer sleeves, positioning screws and spring steel sheets with adjustable length, can be used for cast-in-place concrete beam and wall body of different sizes, conveniently adjust the length of the sleeve and spring steel sheet according to the width of the beam or the thickness of the wall body, the position in the beam longitudinal reinforcement or the position of the wall body reinforcement when the on-site worker installs the steel sleeve, thereby realizing the purpose of successfully installing the steel sleeve in place by avoiding the laminated slab, beam reinforcement and wall body reinforcement. The spring steel sheet is provided with a plurality of positioning holes according to actual needs, can be suitable for structural beams or walls of different sizes, the spring steel sheet is fixedly connected with the steel sleeve through bolts, can be disassembled and replaced when the beam size is different, the spring steel sheet abuts against the positioning screw after the steel sleeve is installed in place, and it is also necessary to ensure that the fixing bolt is tightened. The inner steel sleeve is provided with a guide groove.
[0037] Although the embodiment protects the steel sleeve, it is predictable for those skilled in the art that different materials such as steel pipes, PVC pipes and plastic pipes are used in production practice, that is, as long as the structure of the utility model is used, it should be within the protection scope of the utility model patent.
[0038] Although the technical scheme described in the utility model is a wall-penetrating steel sleeve, it is predictable that the beam-penetrating steel sleeve in the construction industry is also within the protection scope of the utility model technical scheme.
[0039] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0040] The above embodiments are preferred embodiments of the utility model, and the utility model is not limited to the above embodiments. Any obvious modification made by those skilled in the art without departing from the technical principles of the utility model belongs to the concept of the utility model and the protection scope of the appended claims.
Claims
1. A retractable through-wall steel sleeve with an adjustment device, characterized in that... include: A first sleeve and a second sleeve located outside the first sleeve, with an elastic sheet-like body provided on the outside of the second sleeve.
2. The retractable through-wall steel sleeve with adjustment device according to claim 1, characterized in that: The first sleeve has a positioning groove at the end that connects to the second sleeve.
3. The retractable through-wall steel sleeve with adjustment device according to claim 2, characterized in that: On the first sleeve, a protrusion is provided on the side away from the groove.
4. The retractable through-wall steel sleeve with adjustment device according to claim 3, characterized in that: The protrusion is a circular positioning screw.
5. The retractable through-wall steel sleeve with adjustment device according to claim 1, characterized in that: The top of the second sleeve is provided with at least one fixing hole.
6. The retractable through-wall steel sleeve with adjustment device according to claim 1, characterized in that: The elastic sheet is a spring steel sheet including at least one positioning hole.
7. The retractable through-wall steel sleeve with adjustment device according to claim 5, characterized in that: There are two fixing holes.
8. The retractable through-wall steel sleeve with adjustment device according to claim 1, characterized in that: The inner diameter of the second sleeve is not less than the outer diameter of the first sleeve.
9. The retractable through-wall steel sleeve with adjustment device according to claim 6, characterized in that: There are three positioning holes.
10. The retractable through-wall steel sleeve with adjustment device according to claim 3, characterized in that: The center of the first sleeve positioning hole and the central axis of the positioning groove are located on the same axis.