Telescopic formwork cross rib with limiting device

Abstract

The utility model provides a kind of telescopic formwork cross rib with limiting device, including first connecting pipe and fourth connecting pipe, the first connecting pipe with the fourth connecting pipe between threading has telescopic pipe fitting, wherein, one end of the telescopic pipe fitting is threaded in the first connecting pipe, the other end of the telescopic pipe fitting is fixed on the fourth connecting pipe;Limiting device is arranged between the telescopic pipe fitting with the first connecting pipe;The limiting device includes spring installed in the telescopic pipe fitting, one end of the spring is connected with chuck, the first connecting pipe is provided with multiple limit holes along its length direction, and the chuck is clamped in one limit hole.The chuck of this formwork cross rib is matched with corresponding limit hole by spring pushing, realizes the quick and accurate positioning of telescopic pipe fitting in the first connecting pipe, avoids accidental slippage in construction, saves artificial fastening operation, and greatly improves the efficiency of assembly and disassembly.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering construction and building technology, specifically to a telescopic template cross rib with a limiting device. Background Technology

[0002] Formwork systems are a key component of modern concrete construction, with transverse ribs playing a crucial role in ensuring formwork rigidity and pouring accuracy.

[0003] Currently, most commonly used transverse ribs employ fixed lengths or sliding telescopic structures. While these can generally meet dimensional adjustment requirements, in practical use, the adjustment precision of telescopic structures is insufficient, and slippage can easily lead to positioning deviations. Furthermore, telescopic structures rely on bolt fastening or friction locking, which can result in cumbersome operation, poor stability, and a tendency to loosen. Existing improvement solutions attempt to enhance performance through threaded locking, wedge self-locking, or pin positioning, but these still suffer from poor precision control, low operational efficiency, and inconsistent connection reliability, requiring repeated manual calibration or tightening, leading to low connection efficiency. Utility Model Content

[0004] To address the problem that existing transverse ribs use a sliding telescopic structure for adjustment, resulting in poor adjustment accuracy and the need for repeated manual calibration or tightening, leading to low connection efficiency, this utility model provides a telescopic template transverse rib with a limiting device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model proposes a telescopic template cross rib with a limiting device, including a first connecting pipe and a fourth connecting pipe, wherein a telescopic pipe is connected between the first connecting pipe and the fourth connecting pipe, wherein one end of the telescopic pipe is connected inside the first connecting pipe, and the other end of the telescopic pipe is fixed on the fourth connecting pipe. A limit device is provided between the telescopic pipe and the first connecting pipe; The limiting device includes a spring installed inside the telescopic tube, one end of the spring is connected to a clamp, and the first connecting tube has a plurality of limiting holes along its length, with the clamp being engaged in one of the limiting holes.

[0006] Preferably, the length adjustment range of the telescopic fitting is 200mm~400mm.

[0007] Preferably, the telescopic fitting includes a second connecting pipe, a third connecting pipe passing through the second connecting pipe, a fourth connecting pipe being connected to one end of the third connecting pipe away from the second connecting pipe, and the second connecting pipe passing through the first connecting pipe at one end away from the third connecting pipe. The second connecting pipe has multiple limiting holes along its length; Mounting holes are provided on the second connecting pipe at a position inside the first connecting pipe and on the third connecting pipe at a position inside the second connecting pipe. The spring and the clamp are installed in the mounting holes, and one end of the clamp extends out of the second connecting pipe or the third connecting pipe.

[0008] Preferably, the first connecting pipe, the fourth connecting pipe, the second connecting pipe, and the third connecting pipe are all hollow square tubes.

[0009] Preferably, the wall thickness of the hollow square tube is 3mm.

[0010] Preferably, both the first connecting pipe and the fourth connecting pipe are hollow square tubes with a cross-sectional dimension of 45mm × 55mm.

[0011] Preferably, the second connecting pipe is a hollow square tube with a cross-sectional dimension of 39mm×49mm; the third connecting pipe is a hollow square tube with a cross-sectional dimension of 33mm×43mm.

[0012] Preferably, the distance between two adjacent limiting holes is 40 to 120 mm; the distance between the end of the first connecting pipe or the second connecting pipe and the limiting hole is 12.5 mm.

[0013] Preferably, the diameter of the limiting hole is 20mm.

[0014] Preferably, a first plug block is provided on the end of the fourth connecting pipe away from the third connecting pipe, a second plug block is provided on the end of the first connecting pipe away from the second connecting pipe, and a pin hole is provided on the first plug block.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This utility model proposes a telescopic template rib with a limiting device. The template rib achieves rapid and accurate positioning of the telescopic pipe in the first connecting pipe by engaging a spring-driven clamp with a corresponding limiting hole, avoiding accidental slippage during construction. This enables precise limiting within a stepless adjustment range, meeting the dimensional requirements of high-standard construction. Furthermore, the spring pressure self-locking eliminates the need for manual tightening, significantly improving assembly and disassembly efficiency. The engagement of the clamp with the corresponding limiting hole ensures stability and safety during concrete pouring.

[0016] Furthermore, the telescopic fittings in the horizontal ribs of this formwork can be adjusted from 200mm to 400mm, flexibly adapting to the needs of formwork of different sizes and suitable for various specifications of formwork systems, thus improving the versatility and reusability of the formwork. In addition, the telescopic fittings of the horizontal ribs can be retracted to 200mm when not in use, reducing space occupation, facilitating transportation, storage, and on-site turnover, and lowering logistics and management costs.

[0017] Furthermore, the telescopic tubes of the template's transverse ribs form a nested structure through the second and third connecting tubes, meaning the third connecting tube can slide within the second connecting tube, ensuring sufficient telescopic stroke and overall structural stability. By setting multiple limiting holes in the second connecting tube, which, together with the limiting holes on the first connecting tube, further improve the positioning accuracy of the template's transverse ribs.

[0018] Furthermore, the first, fourth, second, and third connecting pipes of this template's transverse ribs are made of 3mm thick hollow square tubing, which reduces the overall weight of the transverse ribs, making them easier to handle and install, and reducing the workload of installers. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the unfolded state of the telescopic tube in the horizontal rib of the telescopic template with a limiting device proposed in this utility model. Figure 2 This is a schematic diagram showing the connection of the limiting device, the third connecting pipe, and the fourth connecting pipe in a telescopic template cross rib with a limiting device proposed in this utility model. Figure 3 This is a schematic diagram of the structure of the second connecting pipe retracting and unfolding in the horizontal rib of a telescopic template with a limiting device proposed in this utility model. Figure 4 This is a schematic diagram of the retracted state structure of a telescopic template cross rib with a limiting device proposed in this utility model. In the attached diagram: 1. First connecting pipe; 2. Second connecting pipe; 3. Limiting hole; 4. Limiting device; 5. First insertion block; 6. Pin hole; 7. Third connecting pipe; 8. Spring; 9. Clip; 10. Fourth connecting pipe; 11. Second insertion block. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] This utility model proposes a telescopic template cross rib with a limiting device, such as... Figures 1-3As shown, the device includes a first connecting pipe 1 and a fourth connecting pipe 10, with a telescopic fitting connecting them. One end of the telescopic fitting is inserted into the first connecting pipe 1, and the other end is fixed to the fourth connecting pipe 10. A limiting device 4 is provided between the telescopic fitting and the first connecting pipe 1. The limiting device 4 includes a spring 8 installed inside the telescopic fitting, with a clamp 9 connected to one end of the spring 8. Multiple limiting holes 3 are provided along the length of the first connecting pipe 1, and the clamp 9 is engaged in one of the limiting holes 3. During the adjustment process of the transverse rib of this template, i.e., during the sliding of the telescopic fitting inside the first connecting pipe 1, the limiting device 4 pushes the clamp 9 into the corresponding limiting hole 3 through the spring 8. This achieves rapid and accurate positioning and automatic locking of the telescopic fitting inside the first connecting pipe 1, eliminating the need for manual tightening, greatly improving the efficiency of assembly and disassembly, and preventing accidental slippage during construction. like Figure 1 , Figure 3 and Figure 4 As shown, the length adjustment range of the telescopic pipe fitting is 200mm~400mm to meet the needs of different templates. The telescopic pipe fitting includes a second connecting pipe 2, a third connecting pipe 7 passing through the second connecting pipe 2, and a fourth connecting pipe 10 connected to the end of the third connecting pipe 7 away from the second connecting pipe 2. The end of the second connecting pipe 2 away from the third connecting pipe 7 passes through the first connecting pipe 1. Multiple limiting holes 3 are provided on the second connecting pipe 2 along its length direction. The second connecting pipe 2 located inside the first connecting pipe 1 and the third connecting pipe 7 located inside the second connecting pipe 2 are both equipped with... The template has mounting holes, in which spring 8 and clamp 9 are installed. One end of clamp 9 extends into a second connecting pipe 2 or a third connecting pipe 7. The spring 8 pushes clamp 9 to automatically engage with the limiting hole. Without the need for tools, the length of the template's transverse rib can be quickly adjusted by manually pressing clamp 9, simplifying the installation and adjustment process, significantly shortening on-site construction time, and improving construction efficiency. Furthermore, the positioning holes on the second connecting pipe 2 and the first connecting pipe 1 respectively cooperate with the limiting device 4. The dual positioning ensures that the template's transverse rib can find a suitable limiting hole for locking no matter what length it is adjusted to.

[0027] Preferably, the first connecting pipe 1, the fourth connecting pipe 10, the second connecting pipe 2, and the third connecting pipe 7 are all hollow square tubes with a wall thickness of 3mm. This significantly reduces weight while ensuring structural strength, facilitating handling and installation. The first connecting pipe 1 and the fourth connecting pipe 10 are both hollow square tubes with a cross-sectional dimension of 45mm × 55mm; the second connecting pipe 2 is a hollow square tube with a cross-sectional dimension of 39mm × 49mm; and the third connecting pipe 7 is a hollow square tube with a cross-sectional dimension of 33mm × 43mm. This ensures smooth sliding of the nested pipes and sufficient contact surface for effective load transfer. The spacing between two adjacent limiting holes ranges from 40 to 120mm; the distance from the end of the first connecting pipe 1 or the second connecting pipe 2 to the limiting hole is 12.5mm; and the diameter of the limiting hole is 20mm, ensuring smooth insertion or withdrawal of the locking head 9 from the limiting hole 3 during adjustment.

[0028] like Figure 1 , Figure 3 and Figure 4 As shown, a first insertion block 5 is provided on the end of the fourth connecting pipe 10 away from the third connecting pipe 7, and a second insertion block 11 is provided on the end of the first connecting pipe 1 away from the second connecting pipe 2. A pin hole 6 is provided on the first insertion block 5. A pin is installed in the pin hole 6 to fix the transverse rib of this template to the frame of the building template, thereby improving the installation efficiency.

[0029] Example 2; In this embodiment, the length of the first connecting pipe 1 is set to 150mm, the length of the fourth connecting pipe 10 is set to 34mm, the length of the second connecting pipe 2 is set to 145mm, and the length of the third connecting pipe 7 is set to 105mm. Five limiting holes 3 are provided on the first connecting pipe 1 and the second connecting pipe 2. One end of the second connecting pipe 2 passes through the first connecting pipe 1, and a limiting device 4 is installed inside the second connecting pipe 2, located inside the first connecting pipe 1. The locking head 9 of the limiting device 4 engages with one of the limiting holes 3 on the first connecting pipe 1. One end of the third connecting pipe 7 passes through the second connecting pipe 2, away from the first connecting pipe 1. One end of the connecting pipe 1 is inserted into the second connecting pipe 2, and a limiting device 4 is installed inside the second connecting pipe 2 inside the third connecting pipe 7. The clamp 9 in the limiting device 4 engages in one of the limiting holes 3 on the second connecting pipe 2. A fourth connecting pipe 10 is fixedly connected to the end of the third connecting pipe 7 away from the second connecting pipe 2. During use, the construction personnel can adjust the length of the transverse rib according to the template spacing requirements, that is, the length of the second connecting pipe 2 extending out of the first connecting pipe 1 and the length of the third connecting pipe 7 extending out of the second connecting pipe 2. After adjustment, the clamp 9 in the limiting device 4 automatically engages in the corresponding limiting hole 3 to achieve precise positioning.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A telescopic template cross rib with a limiting device, characterized in that, It includes a first connecting pipe (1) and a fourth connecting pipe (10), and a telescopic pipe is connected between the first connecting pipe (1) and the fourth connecting pipe (10). One end of the telescopic pipe is connected inside the first connecting pipe (1), and the other end of the telescopic pipe is fixed on the fourth connecting pipe (10). A limit device (4) is provided between the telescopic pipe and the first connecting pipe (1). The limiting device (4) includes a spring (8) installed inside the telescopic tube. One end of the spring (8) is connected to a clamp (9). The first connecting tube (1) has multiple limiting holes (3) along its length direction. The clamp (9) is clamped in one of the limiting holes (3).

2. The telescopic template cross rib with a limiting device according to claim 1, characterized in that, The length adjustment range of the telescopic fitting is 200mm~400mm.

3. A telescopic template cross rib with a limiting device according to claim 2, characterized in that, The telescopic fitting includes a second connecting pipe (2), a third connecting pipe (7) is inserted inside the second connecting pipe (2), one end of the third connecting pipe (7) away from the second connecting pipe (2) is connected to the fourth connecting pipe (10), and one end of the second connecting pipe (2) away from the third connecting pipe (7) is inserted inside the first connecting pipe (1); The second connecting pipe (2) has multiple limiting holes (3) along its length direction; Mounting holes are provided on the second connecting pipe (2) at the position inside the first connecting pipe (1) and on the third connecting pipe (7) at the position inside the second connecting pipe (2). The spring (8) and the clamp (9) are installed in the mounting holes. One end of the clamp (9) extends out of the second connecting pipe (2) or the third connecting pipe (7).

4. A telescopic template cross rib with a limiting device according to claim 3, characterized in that, The first connecting pipe (1), the fourth connecting pipe (10), the second connecting pipe (2) and the third connecting pipe (7) are all hollow square tubes.

5. A telescopic template cross rib with a limiting device according to claim 4, characterized in that, The hollow square tube has a wall thickness of 3mm.

6. A telescopic template cross rib with a limiting device according to claim 4, characterized in that, Both the first connecting pipe (1) and the fourth connecting pipe (10) are hollow square tubes with a cross-sectional dimension of 45mm×55mm.

7. A telescopic template cross rib with a limiting device according to claim 4, characterized in that, The second connecting pipe (2) is a hollow square tube with a cross-sectional size of 39mm×49mm; the third connecting pipe (7) is a hollow square tube with a cross-sectional size of 33mm×43mm.

8. A telescopic template cross rib with a limiting device according to claim 3, characterized in that, The distance between two adjacent limiting holes is 40 to 120 mm; the distance between the end of the first connecting pipe (1) or the second connecting pipe (2) and the limiting hole is 12.5 mm.

9. A telescopic template cross rib with a limiting device according to claim 3, characterized in that, The diameter of the limiting hole is 20mm.

10. A telescopic template cross rib with a limiting device according to claim 3, characterized in that, A first plug block (5) is provided on the end of the fourth connecting pipe (10) away from the third connecting pipe (7), a second plug block (11) is provided on the end of the first connecting pipe (1) away from the second connecting pipe (2), and a pin hole (6) is provided on the first plug block (5).

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