A semi-rigid foundation pit steel support end node with adjustable cover plate thickness

Abstract

The utility model discloses a half rigid foundation pit steel support end node of cover plate thickness adjustable relates to support end node technical field, and the utility model discloses a support, the inboard of support is equipped with adjusting mechanism, and the outside of support is equipped with connecting mechanism, and the adjusting mechanism includes adjusting screw rod, and adjusting screw rod is located the top of support, and the lower extreme fixed of adjusting screw rod is equipped with knob, and the lower extreme fixed of knob is equipped with rotating rod, and the lower extreme sleeve of rotating rod is equipped with locating cap, and the upper surface of locating cap is in accord with the lower extreme of support, and the outside of locating cap is inserted and is equipped with the locating pin, and the one end of locating pin is through the lower extreme outside of rotating rod, and the utility model discloses a adjusting mechanism, utilizes longitudinal adjusting hole to realize longitudinal adjusting function, and the transverse adjusting hole provides space for possible transverse adjustment, and can conveniently and flexibly adjust cover plate thickness and other related parameters to satisfy the actual demand of different foundation pit steel support.

Description

Technical Field

[0001] This utility model relates to the field of support end node technology, specifically a semi-rigid foundation pit steel support end node with adjustable cover plate thickness. Background Technology

[0002] Semi-rigid steel support end nodes for foundation pits with adjustable cover plate thickness are suitable for engineering construction scenarios with complex geological conditions, varying foundation pit depths, and high requirements for the flexibility and precision of the support structure. When constructing underground rail transit stations in urban centers, the surrounding buildings are dense and underground pipelines are intricate. Due to geological differences and construction needs in different areas, the cover plate thickness of foundation pits requires flexible adjustment to ensure foundation pit stability and the safety of the surrounding environment. This end node can be flexibly adjusted according to actual working conditions to meet diverse support requirements.

[0003] However, existing technologies still have the following problems: In existing steel support technologies for foundation pits, due to the vastly different geological conditions at various construction sites, as well as variations in pit depth, shape, and surrounding environment, most steel support end nodes tend to have fixed and simple structures, lacking flexible adjustment mechanisms. This makes it difficult to precisely adjust key parameters such as the cover plate thickness according to specific foundation pit conditions in practical applications. For example, in foundation pits with uneven geological conditions, the stress conditions in different areas vary significantly. A cover plate of fixed thickness cannot effectively adapt to these changes, easily leading to localized stress concentration or insufficient support, which in turn affects the overall stability of the foundation pit and increases construction safety risks.

[0004] To address the aforementioned problems, the inventors proposed a semi-rigid foundation pit steel support end node with adjustable cover plate thickness to solve these issues. Utility Model Content

[0005] To address the lack of a flexible adjustment mechanism, the purpose of this invention is to provide a semi-rigid foundation pit steel support end node with adjustable cover plate thickness.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: a semi-rigid foundation pit steel support end node with adjustable cover plate thickness, including a support, an adjustment mechanism provided on the inner side of the support, and a connecting mechanism provided on the outer side of the support. The adjustment mechanism includes an adjustment screw located above the support. A knob is fixedly provided at the lower end of the adjustment screw, and a rotating rod is fixedly provided at the lower end of the knob. A positioning cover is sleeved on the lower end of the rotating rod. The upper surface of the positioning cover fits against the lower end of the support. A positioning pin is inserted into the outer side of the positioning cover, and one end of the positioning pin passes through the outer side of the lower end of the rotating rod.

[0007] Preferably, the connecting mechanism includes a connecting cylinder, one end of which is fixedly connected to the outside of the support, a connecting rod inserted into one end of the connecting cylinder, a limiting ball rotatably provided on the inside of the support, the inside of the limiting ball being rotatably fitted with the rotating rod, a limiting screw fixedly provided on the outside of the limiting ball, and a fastening nut sleeved on the outside of the limiting screw, one side of the fastening nut being fitted with the outside of the support.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses an adjustment mechanism to achieve longitudinal adjustment by utilizing longitudinal adjustment holes, while lateral adjustment holes provide space for possible lateral adjustment. This allows for convenient and flexible adjustment of relevant parameters such as the cover plate thickness to meet the actual needs of steel supports for different foundation pits. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a cross-sectional schematic diagram of the adjustment mechanism of this utility model.

[0012] Figure 3 This is a cross-sectional schematic diagram of the connection mechanism of this utility model.

[0013] In the diagram: 1. Support; 2. Adjustment mechanism; 3. Connecting mechanism; 20. Adjusting screw; 21. Knob; 22. Anti-slip groove; 23. Rotating rod; 24. Positioning cover; 25. Positioning hole; 26. Positioning pin; 27. Lateral adjustment hole; 28. Longitudinal adjustment hole; 30. Connecting cylinder; 31. Connecting rod; 32. Limiting ball; 33. Fastening nut; 34. Connecting seat; 35. Connecting groove; 36. Limiting screw; 37. Limiting hole. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Figure 1-3 As shown, this utility model provides a semi-rigid foundation pit steel support end node with adjustable cover plate thickness, including a support 1, an adjustment mechanism 2 on the inner side of the support 1, and a connecting mechanism 3 on the outer side of the support 1. The adjustment mechanism 2 includes an adjustment screw 20, which is located above the support 1. A knob 21 is fixedly provided at the lower end of the adjustment screw 20, and a rotating rod 23 is fixedly provided at the lower end of the knob 21. A positioning cover 24 is sleeved on the lower end of the rotating rod 23. The upper surface of the positioning cover 24 is in contact with the lower end of the support 1, and a positioning pin 26 is inserted on the outer side of the positioning cover 24. One end of the positioning pin 26 passes through the outer side of the lower end of the rotating rod 23. When using the adjustment mechanism 2, the adjustment direction and range of the cover plate thickness are first determined according to the actual needs of the foundation pit steel support. For longitudinal adjustment, the operator can rotate the knob 21 located at the lower end of the adjusting screw 20. Since a rotating rod 23 is fixedly mounted at the lower end of the knob 21, and the rotating rod 23 rotates and engages with the longitudinal adjustment hole 28 on the upper surface of the support 1, rotating the knob 21 will cause the rotating rod 23 to rotate within the longitudinal adjustment hole 28, thus achieving the longitudinal adjustment function. After adjustment to the appropriate position, the positioning cover 24 is placed on the lower end of the rotating rod 23, so that the upper surface of the positioning cover 24 is in contact with the lower end of the support 1. Then, the positioning pin 26 is inserted into the outside of the positioning cover 24, with one end passing through the positioning hole 25 on the outside of the lower end of the rotating rod 23, thereby fixing the position of the rotating rod 23 and completing the longitudinal adjustment operation. If lateral adjustment is required, the lateral adjustment hole 27 on the outside of the support 1 can be used for the corresponding operation. The specific process is similar to longitudinal adjustment; an appropriate tool is used to adjust the lateral adjustment hole 27 to achieve the lateral adjustment purpose.

[0016] The connecting mechanism 3 includes a connecting cylinder 30, one end of which is fixedly connected to the outside of the support 1. A connecting rod 31 is inserted into one end of the connecting cylinder 30. A limiting ball 32 is rotatably provided on the inside of the support 1. The inside of the limiting ball 32 is rotatably engaged with the rotating rod 23. A limiting screw 36 is fixedly provided on the outside of the limiting ball 32. A fastening nut 33 is sleeved on the outside of the limiting screw 36. One side of the fastening nut 33 is engaged with the outside of the support 1. In the use of the connecting mechanism 3, one end of the connecting cylinder 30 is first fixedly connected to the outside of the support 1. When it is necessary to connect with other components, the connecting rod 31 is inserted into one end of the connecting cylinder 30, and the insertion depth and position of the connecting rod 31 are adjusted according to the actual connection situation. Since a limiting ball 32 is rotatably provided on the inner side of the support 1, and the inner side of the limiting ball 32 is in rotatable contact with the rotating rod 23, and a limiting screw 36 is fixedly provided on the outer side of the limiting ball 32, the direction of the limiting screw 36 can be adjusted by rotating the limiting ball 32 during the connection process to better adapt to the connection requirements. After the position of the connecting rod 31 is properly adjusted, the fastening nut 33 is placed on the outer side of the limiting screw 36 and tightened so that one side of the fastening nut 33 is in contact with the outer side of the support 1, thereby fixing the position of the connecting rod 31 and completing the connection operation. If it is necessary to further connect other structures, the connecting seat 34 at one end of the limiting screw 36 can be used to connect with other components through the connecting groove 35 on the outer side of the connecting seat 34.

[0017] Multiple annular anti-slip grooves 22 on the outer side of the knob 21 increase the friction between the hand and the knob 21 when the operator rotates the knob 21 for adjustment, preventing slippage and making the adjustment operation more precise, labor-saving, and efficient. The longitudinal adjustment hole 28 on the upper surface of the support 1 is in rotatable contact with the rotating rod 23, providing a precise track for the longitudinal rotation of the rotating rod 23, ensuring the accuracy and stability of longitudinal adjustment. At the same time, the lateral adjustment hole 27 on the outer side of the support 1 provides space and operating position for possible lateral adjustment, enhancing the flexibility of adjustment. The positioning hole 25 on the lower end of the rotating rod 23 and the outer side of the positioning cover 24 is in slidable contact with the positioning pin 26, which can quickly and accurately fix the position of the rotating rod 23 after adjustment, preventing it from rotating during use and ensuring the stability of the adjustment result. The limiting hole 37 on the outer side of the limiting ball 32 rotates and fits into the rotating rod 23, allowing the limiting ball 32 to better cooperate with the movement of the rotating rod 23. At the same time, it plays a certain role in limiting and guiding the rotating rod 23, improving the stability of the entire adjustment mechanism 2. The connecting seat 34 fixed at one end of the limiting screw 36 and the connecting groove 35 on its outer side provide more ways and convenience for connecting the connecting mechanism 3 with other components. The appropriate connection method can be selected according to actual needs, enhancing the versatility and expandability of the semi-rigid foundation pit steel support end node.

[0018] Working Principle: When using the adjustment mechanism 2, first determine the adjustment direction and range of the cover plate thickness according to the actual needs of the foundation pit steel support. If longitudinal adjustment is required, the operator can rotate the knob 21 located at the lower end of the adjustment screw 20. Since the lower end of the knob 21 is fixedly equipped with a rotating rod 23, and the rotating rod 23 is in rotational contact with the longitudinal adjustment hole 28 on the upper surface of the support 1, rotating the knob 21 will drive the rotating rod 23 to rotate within the longitudinal adjustment hole 28, thereby realizing the longitudinal adjustment function. After adjusting to the appropriate position, put the positioning cover 24 on the lower end of the rotating rod 23, so that the upper surface of the positioning cover 24 is in contact with the lower end of the support 1, and then insert the positioning pin 26 into the outside of the positioning cover 24, with one end passing through the positioning hole 25 on the outside of the lower end of the rotating rod 23, thereby fixing the position of the rotating rod 23 and completing the longitudinal adjustment operation. If there is a need for lateral adjustment, the lateral adjustment hole 27 on the outside of the support 1 can be used for the corresponding operation. The specific process is similar to the longitudinal adjustment. Adjustment is performed at the lateral adjustment hole 27 using appropriate tools to achieve the lateral adjustment purpose.

[0019] In the use of the connecting mechanism 3, first fix one end of the connecting cylinder 30 to the outside of the support 1. When it is necessary to connect with other components, insert the connecting rod 31 into one end of the connecting cylinder 30, and adjust the insertion depth and position of the connecting rod 31 according to the actual connection situation. Since the support 1 has a rotatable limiting ball 32, and the inner side of the limiting ball 32 is rotatably engaged with the rotating rod 23, and the outer side of the limiting ball 32 is fixedly provided with a limiting screw 36, the direction of the limiting screw 36 can be adjusted by rotating the limiting ball 32 during the connection process to better adapt to the connection requirements. After the position of the connecting rod 31 is properly adjusted, put the fastening nut 33 on the outer side of the limiting screw 36 and tighten the fastening nut 33 so that one side of the fastening nut 33 is engaged with the outer side of the support 1, thereby fixing the position of the connecting rod 31 and completing the connection operation. If it is necessary to further connect other structures, the connecting seat 34 at one end of the limiting screw 36 can be used to connect with other components through the connecting groove 35 on the outer side of the connecting seat 34.

[0020] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A semi-rigid foundation pit steel support end joint with adjustable cover plate thickness, comprising a support base (1), characterized in that: The support (1) has an adjustment mechanism (2) on its inner side and a connecting mechanism (3) on its outer side; The adjustment mechanism (2) includes an adjustment screw (20), which is located above the support (1). A knob (21) is fixedly provided at the lower end of the adjustment screw (20), and a rotating rod (23) is fixedly provided at the lower end of the knob (21). A positioning cover (24) is sleeved on the lower end of the rotating rod (23). The upper surface of the positioning cover (24) is in contact with the lower end of the support (1). A positioning pin (26) is inserted on the outside of the positioning cover (24), and one end of the positioning pin (26) passes through the outer side of the lower end of the rotating rod (23).

2. The semi-rigid foundation pit steel support end node with adjustable cover plate thickness as described in claim 1, characterized in that, The connecting mechanism (3) includes a connecting cylinder (30), one end of which is fixedly connected to the outside of the support (1). A connecting rod (31) is inserted into one end of the connecting cylinder (30). A limiting ball (32) is rotatably provided on the inside of the support (1). The inside of the limiting ball (32) is rotatably fitted with the rotating rod (23). A limiting screw (36) is fixedly provided on the outside of the limiting ball (32). A fastening nut (33) is sleeved on the outside of the limiting screw (36). One side of the fastening nut (33) is fitted with the outside of the support (1).

3. The semi-rigid foundation pit steel support end node with adjustable cover plate thickness as described in claim 1, characterized in that, The knob (21) has multiple anti-slip grooves (22) arranged in a ring on its outer side.

4. The semi-rigid foundation pit steel support end node with adjustable cover plate thickness as described in claim 1, characterized in that, The upper surface of the support (1) is provided with a longitudinal adjustment hole (28), the inner side of the longitudinal adjustment hole (28) is rotated and fitted with the rotating rod (23), and the outer side of the support (1) is provided with a transverse adjustment hole (27).

5. A semi-rigid foundation pit steel support end node with adjustable cover plate thickness as described in claim 1, characterized in that, The lower end of the rotating rod (23) and the outer side of the positioning cover (24) are provided with positioning holes (25), and the positioning holes (25) are slidably fitted with the positioning pins (26).

6. A semi-rigid excavation steel support end node with adjustable cap thickness as claimed in claim 2, characterised in that, The limiting ball (32) has a limiting hole (37) on its outer side, and the limiting hole (37) is in rotational contact with the rotating rod (23).

7. A semi-rigid excavation steel support end node with adjustable cap thickness as claimed in claim 2, characterised in that, One end of the limiting screw (36) is fixedly provided with a connecting seat (34), and a connecting groove (35) is provided on the outer side of the connecting seat (34).

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