A shaft lining device

Abstract

The application discloses a shaft lining device, comprising: a template assembly, the template assembly comprises a plurality of templates, the plurality of templates are arranged along the circumference of the shaft, and two circumferentially adjacent templates are connected through a first fastener; wherein, the circumferentially opposite ends of the template are respectively provided with a first positioning structure and a second positioning structure, the two circumferentially adjacent templates are matched through the first positioning structure and the second positioning structure to limit the relative displacement of the two circumferentially adjacent templates along the radial direction of the shaft; a support assembly, the support assembly comprises a mounting portion and a plurality of support portions, the mounting portion is located between the plurality of templates, and the support portion is adjustably connected to the mounting portion; the support portion can be close to or away from the template during the adjustment process to support or release the template; wherein, each template is correspondingly provided with a support portion. The shaft lining device provided by the application is convenient to disassemble and assemble.

Description

Technical Field

[0001] This application relates to the field of shaft lining technology, and in particular to a shaft lining device. Background Technology

[0002] Shaft lining is a permanent support structure installed along the circumference of a shaft. It is typically constructed using materials such as concrete and primarily serves to withstand the pressure of the surrounding rock, prevent deformation or collapse of the shaft wall, and ensure the long-term stability and safety of the shaft. Based on different construction techniques, shaft lining can be divided into two main categories: precast assembly and cast-in-place. The latter requires specialized lining equipment to complete the concrete forming and support operations.

[0003] Existing lining devices mainly consist of formwork assemblies and supporting components. Formwork assemblies are used to enclose the concrete pouring cavity within the shaft wall, while supporting components are located inside the formwork to enhance overall rigidity and stability. In common structural designs, formwork assemblies are composed of multiple arc-shaped formwork panels spliced ​​circumferentially, with adjacent panels connected by fasteners; supporting components are then connected transversely between radially opposite or circumferentially adjacent formwork panels using fasteners. However, this structure suffers from difficulties in demolding during practical use. The main reasons are: the lateral compressive force generated during concrete pouring acts on the formwork surface, and various factors during construction lead to uneven stress distribution among the formwork panels, causing some fasteners to bear large loads and even experience stress concentration. Under stress, fasteners are prone to deformation or seizing, increasing the difficulty and efficiency of dismantling operations and affecting construction progress. Therefore, there is an urgent need to develop a shaft lining device with a reasonable structure and convenient assembly / disassembly to improve construction efficiency. Utility Model Content

[0004] This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes a shaft lining device that is easy to assemble and disassemble.

[0005] The shaft lining device according to an embodiment of this application includes: A template assembly includes multiple templates arranged circumferentially along a vertical shaft. Two circumferentially adjacent templates are connected by a first fastener. Each template has a first positioning structure and a second positioning structure at opposite circumferential ends. Two circumferentially adjacent templates cooperate through the first positioning structure and the second positioning structure to limit the relative displacement of the two circumferentially adjacent templates along the radial direction of the vertical shaft. A support assembly includes a mounting part and multiple support parts. The mounting part is located between the multiple templates, and the support parts are adjustablely connected to the mounting part. During adjustment, the support parts can move closer to or further away from the templates to support or release the templates. Each template is provided with a corresponding support part.

[0006] The shaft lining device according to the embodiments of this application has at least the following beneficial effects: During construction, the installation unit is first fixed to the bottom of the shaft, and then the templates are assembled sequentially, ensuring that the first and second positioning structures of adjacent templates interlock and are positioned. The first fastener is then used for circumferential connection, and finally, the support unit is adjusted to tighten against the inner side of the template, completing the formwork erection. During demolding, since there is no direct connection between the support unit and the template, the support unit can be adjusted directly to detach from the inner wall of the template before removing the first fastener. Because the first fastener experiences relatively small loads during pouring, it is less prone to deformation or seizing, allowing for easy disassembly and rapid template removal. Furthermore, the non-connection design between the support unit and the template, combined with the adjustable characteristics of the support unit itself, not only avoids additional constraints between the support unit and the template but also improves the convenience and efficiency of assembly and disassembly operations.

[0007] According to some embodiments of this application, the template includes: Curved plate; Two first connecting plates are disposed on the inner surface of the arc-shaped plate at opposite ends along the circumference of the arc-shaped plate; The first fastener includes: The first bolt passes through two adjacent first connecting plates of two circumferentially adjacent templates; The first nut is threadedly connected to the first bolt.

[0008] According to some embodiments of this application, the first positioning structure is configured as a positioning protrusion, and the second positioning structure is configured as a positioning groove. Both the positioning protrusion and the positioning groove extend vertically, and the positioning groove is a vertically continuous structure. The positioning protrusion and the positioning groove are respectively disposed on opposite sides of the two first connecting plates of the template.

[0009] According to some embodiments of this application, the support portion includes: An adjusting rod is connected to the mounting part, the length direction of the adjusting rod is parallel to the radial direction of the vertical shaft, and the adjusting rod can be moved and adjusted relative to the mounting part along its own length direction; A support plate, detachably connected to the end of the adjusting rod away from the mounting portion, is configured to abut against the inner surface of the template.

[0010] According to some embodiments of this application, a connecting cylinder is provided on the side of the support plate near the mounting part, a first connecting hole is provided on the peripheral wall of the connecting cylinder, the adjusting rod is inserted into the connecting cylinder, a second connecting hole is provided on the peripheral wall of the adjusting rod, the second connecting hole is aligned with the first connecting hole and a fastening screw is inserted through it.

[0011] According to some embodiments of this application, the adjusting rod is provided with external threads, the adjusting rod passes through the mounting part, and adjusting nuts are respectively connected to the opposite sides of the mounting part.

[0012] According to some embodiments of this application, the support includes a plurality of adjusting rods, which are arranged in a rectangular array.

[0013] According to some embodiments of this application, multiple template components and support components are arranged vertically; wherein, in two vertically adjacent template components, the two vertically adjacent templates are connected by a second fastener; in two vertically adjacent support components, the two vertically adjacent mounting parts are connected by a third fastener.

[0014] According to some embodiments of this application, the template includes: Curved plate; Two second connecting plates are disposed at the upper and lower ends of the inner surface of the arc-shaped plate; The second fastener includes: The second bolt passes through two adjacent second connecting plates of two adjacent templates; The second nut is threaded onto the second bolt.

[0015] According to some embodiments of this application, the second connecting plate at the upper end of the template is provided with a positioning post extending vertically, and the second connecting plate at the lower end of the template is provided with a positioning hole that passes vertically through. The positioning post of one template is configured to be inserted into and cooperate with the positioning hole of another template that is vertically adjacent to it.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the connection structure between the template component and the support component in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the template component according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the support component according to an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the shaft lining device according to an embodiment of this application; Figure 5 yes Figure 4 A schematic diagram of the connection structure between two adjacent templates at the top and bottom; Figure 6 yes Figure 4 A schematic diagram of the connection structure between two adjacent mounting parts, one above the other.

[0018] Icon labels: Template 100, arc plate 101, first connecting plate 102, positioning protrusion 103, positioning groove 104, second connecting plate 105, positioning post 106, positioning hole 107, first fastener 110, second fastener 120; Mounting part 200, column 201, crossbar 202, mounting plate 203, flange plate 204, third fastener 210; Support part 300, adjusting rod 310, support plate 320, connecting cylinder 321, fastening screw 330, adjusting nut 340. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0021] In the description of this application, "multiple" refers to two or more. The use of "first" and "second" is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or the order in which the technical features are indicated.

[0022] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 3 As shown, one embodiment of the shaft lining device of this application includes: a template assembly and a support assembly. It should also be noted that the shaft cross-section is circular.

[0024] The template assembly includes multiple templates 100, each template 100 being arc-shaped. The multiple templates 100 are arranged circumferentially along the shaft and abut against each other in sequence. Two circumferentially adjacent templates 100 are detachably connected by a first fastener 110. A first positioning structure and a second positioning structure are respectively provided at opposite ends of the circumferential direction of the template 100. Two circumferentially adjacent templates 100 cooperate through the first positioning structure and the second positioning structure to limit the relative displacement of the two circumferentially adjacent templates 100 along the radial direction of the shaft. The support assembly includes a mounting part 200 and multiple support parts 300. The mounting part 200 is located between multiple templates 100, that is, within the cylindrical space enclosed by the multiple templates 100. The support parts 300 are adjustablely connected to the mounting part 200, and during adjustment, the support parts 300 can move closer to or further away from the templates 100 to support or release them. Each template 100 is provided with a corresponding support part 300. It is understood that during shaft lining, the mounting part 200 can be fixed to the bottom surface of the shaft; of course, other measures can also be used to fix the mounting part 200.

[0025] The shaft lining device of this embodiment effectively restricts the relative displacement of the two templates 100 in the radial direction of the shaft by setting a first positioning structure and a second positioning structure at the ends of adjacent templates 100 in the circumferential direction and making them cooperate with each other. This positioning mechanism can directly transfer the radial extrusion force acting on the template 100 to the adjacent template 100 through the bearing surface between the first positioning structure and the second positioning structure during the concrete pouring process, forming an effective force flow path, thereby significantly reducing the shear and bending moment loads borne by the first fastener 110.

[0026] During construction, the installation unit 200 is first fixed to the bottom of the shaft, and then each template 100 is assembled sequentially, so that the first positioning structure and the second positioning structure of adjacent templates 100 are interlocked and positioned. The first fastener 110 is then used for circumferential connection, and finally, the support unit 300 is adjusted to tighten against the inner side of the template 100 to complete the formwork erection. During demolding, since there is no direct connection between the support unit 300 and the template 100, the support unit 300 can be directly adjusted to detach from the inner wall of the template 100 before removing the first fastener 110. Because the first fastener 110 experiences relatively small loads during pouring, it is less prone to deformation or seizing, thus allowing for easy disassembly and rapid removal of the template 100. Furthermore, the non-connection design between the support unit 300 and the template 100, combined with the adjustable characteristics of the support unit 300 itself, not only avoids additional constraints between the support unit 300 and the template 100, improving the convenience and efficiency of assembly and disassembly operations, but also allows the support assembly to adapt to various specifications of template assemblies, making it suitable for shaft lining construction scenarios of different diameters.

[0027] Reference Figure 1 and Figure 2 As shown, in some embodiments of this application, the template 100 includes an arc-shaped plate 101 and two first connecting plates 102. The arc-shaped plate 101 constitutes the main structure of the template 100, and the two first connecting plates 102 are disposed at opposite ends along the circumferential direction of the inner surface of the arc-shaped plate 101. In two circumferentially adjacent templates 100, the two circumferentially adjacent first connecting plates 102 are fitted together. The first fastener 110 includes a first bolt and a first nut. The first bolt passes through two adjacent first connecting plates 102 of the two circumferentially adjacent templates 100, and the first nut is threadedly connected to the first bolt, thereby achieving a detachable connection between adjacent templates 100.

[0028] In this embodiment, by setting mutually fitting first connecting plates 102 and using bolts and nuts to connect adjacent templates 100, the force transmission path is clear, the structure is stable and reliable, and it is convenient for quick on-site positioning and fixing. During the demolding process, since the cooperation between the first positioning structure and the second positioning structure has borne most of the radial load, the shear force and bending moment on the first bolt are significantly reduced, effectively avoiding the bolt seizing, deformation or jamming problems common in traditional structures, making disassembly easier and more efficient.

[0029] In some specific embodiments, the first connecting plate 102 extends along the vertical side of the template 100, and multiple sets of the first fasteners 110 are arranged vertically at intervals.

[0030] It should be noted that a notch (not shown in the figure) for pouring and vibration needs to be reserved on the template 100. If the notch is inevitably blocked by the support part 300, an avoidance opening needs to be set on the support part 300.

[0031] Reference Figure 2 As shown, in some embodiments of this application, the first positioning structure is configured as a positioning protrusion 103, and the second positioning structure is configured as a positioning groove 104. Both the positioning protrusion 103 and the positioning groove 104 extend vertically, and are respectively located on the opposite sides of the two first connecting plates 102 of the template 100; wherein, the positioning groove 104 is a vertically continuous structure. This design is simple and reliable in positioning, and achieves rapid alignment and precise connection of adjacent templates 100 through the interlocking of the protrusions and concave surfaces. In particular, the vertically continuous design of the positioning groove 104 facilitates the vertical insertion of the end template 100 of the template assembly, allowing the template 100 to be directly inserted between two templates 100 in the final stage of circumferential assembly, effectively improving the overall assembly efficiency and construction convenience.

[0032] Reference Figure 1 and Figure 3As shown, in some embodiments of this application, the support portion 300 includes an adjusting rod 310 and a support plate 320. The adjusting rod 310 is connected to the mounting portion 200, and the length direction of the adjusting rod 310 is parallel to the radial direction of the shaft. The adjusting rod 310 can be moved and adjusted relative to the mounting portion 200 along its own length direction to achieve position adjustment closer to or further away from the template 100. The support plate 320 is detachably connected to the end of the adjusting rod 310 away from the mounting portion 200. The support plate 320 is configured to be in contact with the inner surface of the template 100, and its curvature matches the inner surface of the template 100 to provide a uniform and stable support effect.

[0033] In this embodiment, the design of the support plate 320 fitting snugly against the inner surface of the template 100 increases the contact area, making the support force distribution more uniform, avoiding local stress concentration, and improving the stability of the support. Furthermore, the detachable connection between the support plate 320 and the adjusting rod 310, combined with the overall adjustable design of the support part 300, facilitates quick assembly, disassembly, and transportation, and allows for the replacement of support plates 320 of different specifications according to construction needs, further enhancing the applicability and engineering flexibility of the device.

[0034] Reference Figure 3 As shown, in some embodiments of this application, a connecting cylinder 321 is fixedly provided on the side of the support plate 320 near the mounting part 200. A first connecting hole is provided on the peripheral wall of the connecting cylinder 321. An adjusting rod 310 is inserted into the connecting cylinder 321. A second connecting hole is provided on the peripheral wall of the adjusting rod 310. The second connecting hole is aligned with the first connecting hole and a fastening screw 330 is inserted through it, so as to realize the detachable connection between the support plate 320 and the connecting cylinder 321. The structure is simple and easy to assemble and disassemble.

[0035] It is understood that both the first and second connecting holes can be threaded holes, or only the second connecting hole can be threaded, achieving a reliable connection through thread engagement with the fastening screw 330. Those skilled in the art can select the appropriate thread configuration based on actual stress requirements and processing conditions.

[0036] In some embodiments, a power device may be provided on the mounting portion 200 to drive the adjusting rod 310 to move relative to the mounting portion 200 along its own length direction; of course, other forms may also be adopted.

[0037] For example, refer to Figure 3 As shown, in some embodiments of this application, the adjusting rod 310 is provided with an external thread, the adjusting rod 310 passes through the mounting part 200, and adjusting nuts 340 are respectively connected to the opposite sides of the mounting part 200. By adjusting the adjusting nuts 340 on the opposite sides of the mounting part 200, the adjusting rod 310 can be moved and adjusted relative to the mounting part 200. The structure is simple and the weight is light.

[0038] Understandably, different adjustment schemes can be selected for different construction conditions: in vertical shafts with limited space, automatic adjustment can be achieved by using a power device; while in vertical shafts with larger space, manual adjustment can be achieved by using the adjusting nut 340, taking into account both construction efficiency and operability.

[0039] Reference Figure 3 As shown, in some embodiments of this application, the support 300 includes a plurality of adjusting rods 310 arranged in a rectangular array; by providing a plurality of adjusting rods 310, the stability of the support is improved.

[0040] In some specific embodiments, refer to Figure 3 As shown, the mounting part 200 includes a column 201, a crossbar 202, and a mounting plate 203. The column 201 is vertically arranged, the crossbar 202 is fixed to the outer peripheral wall of the column 201, and the mounting plate 203 is fixed to the end of the crossbar 202 away from the column 201 and is arranged vertically. The mounting plate 203 is provided with corresponding holes for the adjusting rod 310 to pass through, and the adjusting nuts 340 on the adjusting rod 310 abut against the opposite sides of the mounting plate 203 respectively.

[0041] It is conceivable that, in order to reduce their own weight, both the upright column 201 and the crossbar 202 can be hollow.

[0042] Reference Figure 4 As shown, in some embodiments of this application, multiple template components and support components are arranged vertically to form a segmented support structure. Specifically, in two adjacent template components, the two adjacent templates 100 are vertically connected by a second fastener 120; in two adjacent support components, the two adjacent mounting parts 200 are reliably fixed by a third fastener 210. This segmented structure facilitates transportation and on-site assembly, and the number of vertically arranged components can be flexibly adjusted according to the depth of the shaft.

[0043] Reference Figure 5 As shown, in some embodiments of this application, the template 100 further includes two second connecting plates 105, which are respectively fixedly disposed at the upper and lower ends of the inner surface of the arc-shaped plate 101. The second fastener 120 includes a second bolt and a second nut. The second bolt passes through two adjacent second connecting plates 105 in two adjacent templates 100, and the second nut is threadedly connected to the second bolt, thereby achieving reliable splicing of the templates 100 in the vertical shaft depth direction. The two adjacent second connecting plates 105 in two adjacent templates 100 are in close contact with each other; the close contact of the second connecting plates 105 not only increases the contact area and improves the rigidity and load-bearing capacity of the connection node, but also effectively ensures the uniform transmission of vertical force flow.

[0044] In some specific embodiments, two first connecting plates 102 and two second connecting plates 105 are connected to form a ring frame structure to improve the integrity and circumferential stiffness of the template 100 and avoid local stress concentration.

[0045] Reference Figure 5 As shown, in some embodiments of this application, the second connecting plate 105 at the upper end of the template 100 is provided with a positioning post 106 extending vertically, and the second connecting plate 105 at the lower end of the template 100 is provided with a positioning hole 107 that extends vertically. The positioning post 106 of one template 100 is configured to be inserted into the positioning hole 107 of another template 100 that is vertically adjacent to it, so as to realize the rapid and accurate positioning of the upper and lower templates 100, effectively ensuring the overall verticality and installation accuracy of the template assembly, and at the same time effectively limiting the radial relative displacement of two adjacent templates 100. By inserting and positioning to bear part of the radial load, the shear force and bending moment borne by the second fastener 120 during the concrete pouring process are significantly reduced, effectively avoiding the deformation or seizing phenomenon of the second fastener 120 due to overload, and providing convenience for subsequent disassembly operations.

[0046] It should be noted that multiple sets of positioning posts 106 and positioning holes 107 can be set between two adjacent templates 100.

[0047] Reference Figure 6 As shown, in some embodiments of this application, flange plates 204 are respectively provided at the upper and lower ends of the column 201 of the mounting part 200, and the third fastener 210 includes a third bolt and a third nut. The third fastener 210 is connected between adjacent flange plates 204 of two adjacent columns 201.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine different embodiments or examples described in this specification.

[0049] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A shaft lining device, characterized in that, include: A template assembly includes multiple templates arranged circumferentially along a vertical shaft. Two circumferentially adjacent templates are connected by a first fastener. Each template has a first positioning structure and a second positioning structure at opposite circumferential ends. Two circumferentially adjacent templates cooperate through the first positioning structure and the second positioning structure to limit the relative displacement of the two circumferentially adjacent templates along the radial direction of the vertical shaft. A support assembly includes a mounting part and multiple support parts. The mounting part is located between the multiple templates, and the support parts are adjustablely connected to the mounting part. During adjustment, the support parts can move closer to or further away from the templates to support or release the templates. Each template is provided with a corresponding support part.

2. The shaft lining device according to claim 1, characterized in that, The template includes: Curved plate; Two first connecting plates are disposed on the inner surface of the arc-shaped plate at opposite ends along the circumference of the arc-shaped plate; The first fastener includes: The first bolt passes through two adjacent first connecting plates of two circumferentially adjacent templates; The first nut is threadedly connected to the first bolt.

3. The shaft lining device according to claim 2, characterized in that, The first positioning structure is configured as a positioning protrusion, and the second positioning structure is configured as a positioning groove. Both the positioning protrusion and the positioning groove extend vertically. The positioning groove is a vertically continuous structure, and the positioning protrusion and the positioning groove are respectively located on opposite sides of the two first connecting plates of the template.

4. The shaft lining device according to claim 1, characterized in that, The support portion includes: An adjusting rod is connected to the mounting part, the length direction of the adjusting rod is parallel to the radial direction of the vertical shaft, and the adjusting rod can be moved and adjusted relative to the mounting part along its own length direction; A support plate, detachably connected to the end of the adjusting rod away from the mounting portion, is configured to abut against the inner surface of the template.

5. The shaft lining device according to claim 4, characterized in that, A connecting cylinder is provided on the side of the support plate near the mounting part. A first connecting hole is provided on the peripheral wall of the connecting cylinder. The adjusting rod is inserted into the connecting cylinder. A second connecting hole is provided on the peripheral wall of the adjusting rod. The second connecting hole is aligned with the first connecting hole and a fastening screw is inserted through it.

6. The shaft lining device according to claim 4, characterized in that, The adjusting rod is provided with external threads, the adjusting rod passes through the mounting part, and adjusting nuts are respectively connected to the opposite sides of the mounting part.

7. The shaft lining device according to claim 4, characterized in that, The support includes a plurality of adjusting rods, which are arranged in a rectangular array.

8. The shaft lining device according to claim 1, characterized in that, Multiple template components and support components are arranged vertically; among them, two vertically adjacent template components are connected by a second fastener; among two vertically adjacent support components, two vertically adjacent mounting parts are connected by a third fastener.

9. The shaft lining device according to claim 8, characterized in that, The template includes: Curved plate; Two second connecting plates are disposed at the upper and lower ends of the inner surface of the arc-shaped plate; The second fastener includes: The second bolt passes through two adjacent second connecting plates of two adjacent templates; The second nut is threaded onto the second bolt.

10. The shaft lining device according to claim 9, characterized in that, The second connecting plate at the upper end of the template is provided with a positioning post extending vertically, and the second connecting plate at the lower end of the template is provided with a positioning hole that runs vertically through. The positioning post of one template is configured to be inserted into the positioning hole of another template that is vertically adjacent to it.

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