Spring device for underground engineering

Abstract

The invention relates to a spring device for underground engineering. The spring device comprises a bolt, a spring assembly and an arch-shaped rod piece assembly. The spring assembly is arranged on the bolt in a sleeving manner; the arch-shaped rod piece assemblies are arranged on the periphery of the outer side of the spring assembly with the bolt as the center; the two ends of the arch-shaped rod piece assembly are movably hinged to the two ends of the spring assembly respectively. When the arch-shaped rod piece assembly deforms, extends and becomes straight under the radial pressure of the spring assembly on the periphery of the spring assembly, the arch-shaped rod piece assembly can synchronously stretch the spring assembly to be lengthened. And when the pressure which is applied to the arch-shaped rod piece assembly and faces the radial direction of the spring assembly disappears, the spring assembly which is stretched and lengthened starts to contract due to the elastic characteristic of the spring assembly, and the arch-shaped rod piece assembly is driven to restore to the original arch-shaped state. The spring device provided by the invention has the characteristic of easy installation and an auxiliary fixing structure, so that construction errors are reduced, the construction quality is improved, and the engineering reliability is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of underground engineering, and in particular relates to a spring device used in underground engineering. Background Art

[0002] In underground engineering, the segment bolt fixing system is one of the key technologies to ensure the stability and sealing of the tunnel structure. Traditional bolt fixing systems may have problems such as insufficient durability, complex production and installation, such as the following problems:

[0003] Materials and structures: Insufficient durability, prone to rust and damage in the humid and corrosive environment underground; Insufficient rigidity, which may lead to deformation of the segment ring and uneven distribution of internal forces, increasing structural risks.

[0004] Performance: If the spring's waterproof performance is poor, it may cause groundwater to seep in, affecting the safety of the tunnel. If other performance such as corrosion resistance is poor, it will affect the service life of the spring.

[0005] Cost: An increase in labor costs will also lead to an increase in the cost of the entire project.

[0006] In terms of production and use: the production process is complicated and requires multiple steps, which increases cost and time; the installation is inconvenient and inefficient, and it is difficult to install in narrow or inaccessible spaces. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the existing technical problems, the present invention provides a spring device for underground engineering.

[0009] (II) Technical solution

[0010] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0011] A spring device for underground engineering, comprising: a bolt, a spring assembly and a bow-shaped rod assembly;

[0012] The spring assembly is sleeved on the bolt;

[0013] The bow-shaped rod component is arranged around the outer side of the spring component with the bolt as the center;

[0014] The two ends of the bow-shaped rod component are respectively movably hinged to the two ends of the spring component;

[0015] When the bow-shaped rod component is deformed, stretched and straightened by the pressure in the radial direction of the spring component around the spring component, the spring component can be stretched and lengthened synchronously;

[0016] When the radial pressure exerted on the bow-shaped rod component toward the spring component disappears, the stretched and lengthened spring component begins to contract due to its own elastic properties and drives the bow-shaped rod component to return to its original bow-shaped state.

[0017] Preferably, the spring assembly comprises: a spring, a fixed base and a fixed mother part;

[0018] The spring, the fixing base and the fixing mother part are all sleeved on the screw rod of the bolt;

[0019] The two ends of the spring are respectively fixedly connected to the fixed base and the fixed mother part;

[0020] The fixed base is fixedly sleeved at the bottom end of the bolt;

[0021] The fixed female part is movably sleeved on the screw rod.

[0022] Preferably, a hinge hole is provided on the fixed base;

[0023] The fixing mother part is provided with a hinge hole;

[0024] The two ends of the bow-shaped rod component are respectively hinged to the fixed base and the fixed mother component by means of hinge holes.

[0025] Preferably, it also includes: rotating the nut;

[0026] The rotating nut is arranged on the screw rod of the bolt and is located below the fixing mother part;

[0027] The rotating nut can be rotated and adjusted on the screw rod by external force;

[0028] The spring can freely extend and retract through the rotating nut.

[0029] Preferably, the outer diameter of the rotating nut is smaller than the inner diameter of the spring;

[0030] The outer diameter of the rotating nut is greater than the inner diameter of the fixed female part;

[0031] The rotating nut can limit the maximum contraction position of the spring by locking the fixed mother component.

[0032] Preferably, it also includes: a nut;

[0033] The nut can be arranged on the screw rod of the bolt and is located above the fixing mother part;

[0034] The position of the nut on the screw rod can be adjusted by rotating it with external force.

[0035] Preferably, the outer diameter of the nut is greater than the inner diameter of the fixing mother part;

[0036] The nut can limit the maximum stretching position of the spring by locking the fixed mother component;

[0037] A free expansion and contraction travel space of the spring is formed between the nut and the rotating nut.

[0038] Preferably, the bow-shaped rod assembly comprises at least three rigid rods;

[0039] Both ends of each section of the rigid rod are provided with hinge holes;

[0040] The rigid rods are connected with each other by means of hinge holes.

[0041] Preferably, the number of the bow-shaped rod assemblies is multiple groups;

[0042] A plurality of groups of the bow-shaped rod components are arranged and connected around the spring component.

[0043] (III) Beneficial effects

[0044] The beneficial effects of the present invention are:

[0045] The spring device takes into full account the diverse needs of tunnel engineering and realizes customized design to adapt to different underground environments. It can use highly durable materials to enhance the corrosion and wear resistance of the spring. The optimization of the production process simplifies the manufacturing steps, effectively reduces costs, and ensures the quality of the product. In addition, the spring also includes an easy-to-operate insertion automatic locking mechanism, which greatly improves construction efficiency. These characteristics give the spring a significant application advantage in tunnel engineering.

[0046] High durability and low maintenance requirements help reduce the long-term operating costs of the project, thereby achieving economic sustainability. Customized design and auxiliary fixing structures significantly enhance the safety of tunnel structures and reduce risks in construction and operation. Easy installation characteristics and auxiliary fixing structures reduce construction errors, improve construction quality, and ensure the reliability of the project. In addition, the high adaptability of the spring enables it to adapt to a variety of different underground engineering environments, providing a wide range of applications. These features together ensure that the application of springs in underground engineering can bring significant benefits and advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic structural diagram of a spring device for underground engineering provided by the present invention;

[0048] Figure 2 A schematic structural diagram of a spring device for underground engineering provided by the present invention;

[0049] Figure 3 A comparison diagram of a spring device for underground engineering provided by the present invention, in which one or more groups of bow-shaped rod components are arranged.

[0050] [Description of Reference Numerals]

[0051] 1: Bolt; 2: Spring; 3: Fixed base; 4: Fixed mother part; 5: Bow rod assembly; 6: Nut. DETAILED DESCRIPTION

[0052] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0053] like Figure 1-Figure 3 As shown: This embodiment discloses a spring device for underground engineering, including: a bolt 1, a spring assembly and a bow rod assembly 5.

[0054] In detail, the spring assembly is sleeved on the bolt 1; the bow-shaped rod assembly 5 is arranged around the outer side of the spring assembly with the bolt 1 as the center; the two ends of the bow-shaped rod assembly 5 are respectively hinged with the two ends of the spring assembly. When the bow-shaped rod assembly 5 is deformed, stretched and straightened by the radial pressure of the spring assembly around the spring assembly, the spring assembly can be stretched and lengthened synchronously.

[0055] When the radial pressure exerted on the bow-shaped rod component 5 toward the spring component disappears, the stretched and lengthened spring component begins to contract due to its own elastic properties and drives the bow-shaped rod component 5 to return to its original bow-shaped state.

[0056] For example, the spring device in this embodiment mainly realizes the conversion of the surrounding force through a unique spring rod structure, so that it becomes the force along the rod direction of the bolt 1. The device is composed of two core components: one is the elastic spring structure (i.e., the bolt and spring assembly), and the other is the rigid bow rod assembly 5 fixed around the spring.

[0057] When the surrounding arched rod components 5 are compressed by external forces, they will move closer to the center. In this process, the elongation and compression of the arched rod components 5 cause the central spring 2 to be stretched, thereby reducing the outer radius of the overall structure. Once the spring device enters the predetermined structure, the surrounding arched rod components 5 will no longer be subjected to external pressure. At this time, the stretched spring 2 begins to shrink due to its own elastic properties, pushing the arched rod components 5 back to their original state. In order to maintain this stretched state and prevent the arched rod components 5 from shrinking again, a nut tightening mechanism is used to lock the arched rod components and spring positions by rotating the nut, thereby achieving the fixation and stability of the entire structure.

[0058] Specifically, the spring assembly includes: a spring 2, a fixed base 3 and a fixed mother part 4. The spring 2, the fixed base 3 and the fixed mother part 4 are all sleeved on the screw rod of the bolt 1; the two ends of the spring 2 are respectively fixedly connected to the fixed base 3 and the fixed mother part 4; the fixed base 3 is fixedly sleeved on the bottom end of the bolt 1; the fixed mother part 4 is movably sleeved on the screw rod.

[0059] In this embodiment, the fixed base 3 is provided with a hinge hole; the fixed mother component 4 is provided with a hinge hole; and the two ends of the bow-shaped rod component 5 are respectively hinged to the fixed base 3 and the fixed mother component 4 by means of the hinge holes.

[0060] The spring device for underground engineering in this embodiment also includes: a rotating nut; the rotating nut is arranged on the screw rod of the bolt 1 and is located below the fixed mother part 4; the rotating nut can be rotated and adjusted on the screw rod by external force; the spring 2 can freely extend and retract through the rotating nut.

[0061] Specifically, the outer diameter of the rotating nut is smaller than the inner diameter of the spring 2; the outer diameter of the rotating nut is larger than the inner diameter of the fixed mother part 4; the rotating nut can limit the maximum contraction position of the spring 2 by locking the fixed mother part.

[0062] The spring device for underground engineering in this embodiment also includes: a nut 6; the nut 6 can be set on the screw rod of the bolt 1 and is located above the fixing mother part 4; the nut 6 can be rotated and adjusted on the screw rod by external force.

[0063] It should be noted that: the outer diameter of the nut 6 is larger than the inner diameter of the fixed mother component 4; the nut 6 can limit the maximum stretching position of the spring 2 by locking the fixed mother component 4; and the nut 6 and the rotating nut form a free extension and contraction travel space for the spring 2.

[0064] In terms of material selection, in this embodiment, high-strength plastic is used as the main component material except for the spring 2. This not only reduces the weight of the overall device, but also brings revolutionary changes to the manufacturing process.

[0065] Specifically, components made of plastic can be produced through 3D printing technology, which greatly saves manufacturing time and labor costs compared to traditional metal processing methods, and also reduces the requirements for production sites. The application of 3D printing technology simplifies the production process of components and improves production efficiency.

[0066] In the specific use process, this embodiment uses a rod (bolt) with a thread in the middle to provide support. This structure has two main advantages: on the one hand, it effectively slows down the wear rate of the spring; on the other hand, it disperses the excess force directed inward to the entire spring rod structure, ensuring that the entire device can maintain uniform force when subjected to force, thereby improving stability and service life.

[0067] The bow-shaped rod assembly 5 in this embodiment includes at least three rigid rods; both ends of each rigid rod are provided with hinge holes; and the rigid rods are connected with each other by means of the hinge holes.

[0068] The number of the bow-shaped rod components 5 in this embodiment is multiple groups; the multiple groups of bow-shaped rod components are arranged and connected around the spring component.

[0069] For example Figure 3 2 shows the distribution structure diagram of the bow-shaped rod assembly 5 on the device in the case of one group, two groups, three groups and four groups respectively.

[0070] The technical principles of the present invention are described in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present invention and cannot be interpreted in any way as limiting the scope of protection of the present invention. Based on the explanations here, those skilled in the art can associate other specific implementations of the present invention without creative work, and these methods will fall within the scope of protection of the present invention.

Claims

1. A spring device for underground engineering, characterized in that: include: bolt, spring assembly and bow rod assembly; The spring assembly is sleeved on the bolt; The bow-shaped rod component is arranged around the outer side of the spring component with the bolt as the center; The two ends of the bow-shaped rod component are respectively movably hinged to the two ends of the spring component; When the bow-shaped rod component is deformed, stretched and straightened by the pressure in the radial direction of the spring component around the spring component, the spring component can be stretched and lengthened synchronously; When the radial pressure exerted on the bow-shaped rod component toward the spring component disappears, the stretched and lengthened spring component begins to contract due to its own elastic properties and drives the bow-shaped rod component to return to its original bow-shaped state.

2. The spring device according to claim 1, characterized in that The spring assembly comprises: a spring, a fixed base and a fixed mother part; The spring, the fixing base and the fixing mother part are all sleeved on the screw rod of the bolt; The two ends of the spring are respectively fixedly connected to the fixed base and the fixed mother part; The fixed base is fixedly sleeved at the bottom end of the bolt; The fixed female part is movably sleeved on the screw rod.

3. The spring device according to claim 2, characterized in that The fixed base is provided with a hinge hole; The fixing mother part is provided with a hinge hole; The two ends of the bow-shaped rod component are respectively hinged to the fixed base and the fixed mother component by means of hinge holes.

4. The spring device according to claim 3, characterized in that Also included: turning the nut; The rotating nut is arranged on the screw rod of the bolt and is located below the fixing mother part; The rotating nut can be rotated and adjusted on the screw rod by external force; The spring can freely extend and retract through the rotating nut.

5. The spring device according to claim 4, characterized in that The outer diameter of the rotating nut is smaller than the inner diameter of the spring; The outer diameter of the rotating nut is greater than the inner diameter of the fixed female part; The rotating nut can limit the maximum contraction position of the spring by locking the fixed mother component.

6. The spring device according to claim 5, characterized in that Also includes: nut; The nut can be arranged on the screw rod of the bolt and is located above the fixing mother part; The position of the nut on the screw rod can be adjusted by rotating it with external force.

7. The spring device according to claim 6, characterized in that The outer diameter of the nut is greater than the inner diameter of the fixing mother part; The nut can limit the maximum stretching position of the spring by locking the fixed mother component; A free expansion and contraction travel space of the spring is formed between the nut and the rotating nut.

8. The spring device according to claim 7, characterized in that The bow-shaped rod assembly comprises at least three rigid rods; Both ends of each section of the rigid rod are provided with hinge holes; The rigid rods are connected with each other by means of hinge holes.

9. The spring device according to claim 8, characterized in that The number of the bow-shaped rod components is multiple; A plurality of groups of the bow-shaped rod components are arranged and connected around the spring component.

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