Device for installing water-stop belt based on secondary lining trolley

Abstract

The utility model provides a device for installing a water-stop belt based on a secondary lining trolley, relates to a water-stop belt installation technology, and particularly discloses a trolley structure, a plurality of end templates are sequentially arranged on the outer side of the trolley structure and are in an arc shape after being sequentially spliced, and the end templates are arranged on the outer side of the trolley structure. A jacking mechanism connected with one end formwork is installed on the top of the trolley structure, a plurality of position adjusting mechanisms connected with the end formworks are arranged on the side wall of the trolley structure in a surrounding mode, fixing structures used for fixing the waterstop are arranged on the end formworks, and the end formworks are sequentially hinged and spliced into an arc shape. And the inner arc surface of the tunnel is accurately adapted to ensure that the waterstop is tightly attached to the tunnel wall.

Description

Technical Field

[0001] This utility model relates to the field of waterstop installation technology, and more specifically, to a device for installing waterstops based on a secondary lining trolley. Background Technology

[0002] In the concrete lining construction of tunnels and underground caverns, the installation quality of waterstops (especially embedded and externally applied waterstops) is crucial, directly affecting the long-term waterproofing performance and service life of the engineering structure. To achieve precise positioning of the waterstop and ensure its perfect fit to the complex inner curved surface of the tunnel or cavern, a specialized formwork trolley system is typically required. The cross-section of a tunnel is usually a complex curved surface (such as circular or horseshoe-shaped), with curvature varying according to the design. Existing trolley formwork systems, especially the end formwork for fixing the waterstop, are often large-area monolithic formwork or a limited number of segmented formwork. These systems have limited curvature adjustment capabilities, poor flexibility, and difficulty in accurately adapting to the varying inner curved surface curvature of different tunnel sections. This results in the waterstop failing to adhere evenly and tightly to the tunnel lining or subbase during installation, easily leading to localized gaps, wrinkles, or tensile deformation, creating potential leakage points. Utility Model Content

[0003] The purpose of this utility model is to provide a device for installing waterstops based on a secondary lining trolley, which addresses the shortcomings of the prior art and solves the problems mentioned in the background.

[0004] The technical solution of this utility model is implemented as follows:

[0005] This utility model provides a device for installing a waterstop based on a secondary lining trolley, including a trolley structure, a support frame installed on one side of the trolley structure, a plurality of end templates arranged sequentially on the outer side of the support frame, the plurality of end templates being spliced ​​together in an arc shape, a lifting mechanism connected to one of the end templates installed on the top of the trolley structure, a plurality of adjusting mechanisms respectively connected to the end templates being arranged around the side wall of the trolley structure, and a fixing structure for fixing the waterstop on the end templates.

[0006] In some technical solutions of this utility model, the lifting mechanism includes two first telescopic rods arranged in pairs. The body of the first telescopic rod is fixed to the side wall of the trolley structure, and the telescopic end of the first telescopic rod is connected to one of the end templates.

[0007] In some technical solutions of this utility model, any two adjacent end templates are hinged to each other.

[0008] In some technical solutions of this utility model, the adjustment mechanism includes a second telescopic rod that is inclinedly installed on the trolley structure, and the telescopic end of the second telescopic rod is connected to its corresponding end template.

[0009] In some technical solutions of this utility model, a first mounting groove is provided on the side wall of the end template, the second lining template is detachably installed in the first mounting groove, and the fixing structure is installed in the first mounting groove.

[0010] In some technical solutions of this utility model, the fixing structure includes an internal threaded hole opened on one side of the first mounting groove, and a screw threadedly connected thereto is provided in the internal threaded hole.

[0011] In some technical solutions of this utility model, a second mounting groove is provided on the side of the end template away from the trolley structure.

[0012] Compared with the prior art, this utility model has at least the following advantages or beneficial effects: Several end templates are sequentially hinged and spliced ​​into an arc shape, which precisely fits the inner arc surface of the tunnel, ensuring that the waterstop is tightly attached to the tunnel wall. The second telescopic rod is set around the trolley, and the radial position of all templates is adjusted synchronously to eliminate gaps and form a continuous and smooth arc surface. The first telescopic rod vertically pushes the top template to the target elevation. The embedded waterstop is embedded in the second mounting groove on the back side of the end template. The two are positioned by interlocking and are easy to separate later. The back-attached waterstop is installed in the groove of the top template and is linked with the lifting system for positioning. It can also play an auxiliary sealing role at the contact part between the end template and the inner wall of the tunnel. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the installation structure of the end template in this utility model.

[0014] Figure 2 This is a three-dimensional structural diagram of the end-end template of this utility model.

[0015] Figure 3 This is a side view of the three-dimensional structure of this utility model.

[0016] Figure 4 This is a partial cross-sectional view of the end template of this utility model.

[0017] Reference numerals in the attached drawings: 1. Trolley structure; 2. Support frame; 3. First telescopic rod; 4. Second lining template; 5. End template; 6. Second telescopic rod; 7. Back-attached waterstop; 8. Embedded waterstop; 9. Groove; 10. First mounting groove; 11. Screw; 12. Second mounting groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0020] Example

[0021] This utility model provides a device for installing a waterstop strip based on a secondary lining trolley, such as... Figures 1-4 As shown, the system includes a trolley structure 1, with a support frame 2 mounted on one side. Several end templates 5 are sequentially arranged on the outer side of the support frame 2. Preferably, there are 6-7 end templates 5, but 5 are also acceptable. These end templates 5 are sequentially spliced ​​together to form an arc shape, adapting to the inner curved surface of the tunnel and allowing the waterstop to better fit the tunnel wall. A lifting mechanism connected to one of the end templates 5 is mounted on the top of the trolley structure 1, pushing the top end template 5 to the target elevation. Several adjusting mechanisms, each connected to an end template 5, are arranged around the side wall of the trolley structure 1. These adjusting mechanisms synchronously adjust the radial position of each end template 5. Each end template 5 has a fixing structure for securing the waterstop, directly constraining the waterstop and ensuring its positioning matches the designed curvature. By using multiple end templates 5 to form a modular system to adapt to different curvature requirements, the adjustment time during waterstop installation is reduced, improving installation efficiency and quality.

[0022] In some technical solutions of this utility model, the lifting mechanism includes two first telescopic rods 3 arranged in pairs. The bodies of the first telescopic rods 3 are fixed to the side wall of the trolley structure 1, and the telescopic ends of the first telescopic rods 3 are connected to one of the end templates 5. The symmetrical layout of the double telescopic rods provides balanced thrust, avoiding template tilting caused by single-point force. The two first telescopic rods 3 are hydraulic rods, which are connected to the end template 5 located in the middle of the trolley by a link connection. During lifting, the two first telescopic rods 3 extend and retract synchronously, pushing the top end template 5 to rise and fall vertically, enhancing lifting stability and preventing template twisting.

[0023] In some technical solutions of this utility model, any two adjacent end templates 5 are hinged together. The adjacent end templates 5 rotate relative to each other through the hinge point, forming a continuous and smooth arc surface in conjunction with the adjustment mechanism, eliminating template gaps, improving the installation quality of the waterstop, reducing the load on the adjustment mechanism, and making the operation more flexible.

[0024] In some technical solutions of this utility model, the adjustment mechanism includes a second telescopic rod 6 inclinedly installed on the trolley structure 1, with the telescopic end of the second telescopic rod 6 connected to its corresponding end template 5. When the inclined second telescopic rod 6 extends or retracts, it simultaneously pulls the end template 5 radially and makes minor adjustments along the oblique tangential direction of the end template 5, allowing the structure to better adapt to the tunnel inner wall. Furthermore, when the inclined second telescopic rod 6 pulls the end template 5 to move away from the inner arc surface of the tunnel, it can assist the embedded waterstop 8 and the back-attached waterstop 7 in detaching from the end template 5, thus playing a demolding role and preventing the embedded waterstop 8 and the back-attached waterstop 7 from being pulled off the tunnel inner wall.

[0025] In some technical solutions of this utility model, a first mounting groove 10 is provided on the side wall of the end template 5, and the secondary lining template 4 is detachably installed in the first mounting groove 10. The fixing structure is installed in the first mounting groove 10. The secondary lining template 4 is embedded in the first mounting groove 10 of the end template 5, so that the mounting groove provides positioning and fixing functions for the secondary lining template 4, and supports it during the installation of the embedded waterstop 8 and the back-attached waterstop 7 to prevent the embedded waterstop 8 and the back-attached waterstop 7 from shifting during the installation process.

[0026] In some technical solutions of this utility model, the fixing structure includes an internally threaded hole on one side of the first mounting groove, and a screw 11 threadedly connected thereto is provided in the internally threaded hole. The rotating screw 11 is screwed into the internally threaded hole and squeezes the secondary lining template 4 to a preset pressure value, so that the secondary lining template 4 is tightly fitted to the side wall of the end template 5, preventing concrete slurry leakage, and avoiding the secondary lining template 4 from being damaged or loosened due to excessive compression, which would cause the template to shift and affect the installation of the embedded waterstop 8 and the back-attached waterstop 7.

[0027] In some technical solutions of this utility model, a second mounting groove 12 is provided on the side of the end template 5 away from the trolley structure, and a centrally embedded waterstop 8 is embedded in the second mounting groove 12 to facilitate the positioning of the centrally embedded waterstop 8. The direct fitting method facilitates the later separation of the centrally embedded waterstop 8 from the end template 5. A groove 9 is provided on the top of the end template 5 for installing the back-attached waterstop 7.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for installing a waterstop strip on a secondary lining trolley, characterized in that, The trolley structure (1) includes a support frame (2) installed on one side of the trolley structure (1). Several end templates (5) are arranged sequentially on the outer side of the support frame (2). The several end templates (5) are spliced ​​together in an arc shape. A lifting mechanism connected to one of the end templates (5) is installed on the top of the trolley structure (1). Several adjusting mechanisms connected to the end templates (5) are arranged around the side wall of the trolley structure (1). The end templates (5) are provided with a fixing structure for fixing the waterstop.

2. The device for installing a waterstop belt based on a secondary lining trolley according to claim 1, characterized in that, The lifting mechanism includes two first telescopic rods (3) arranged in pairs. The body of the first telescopic rod (3) is fixed to the side wall of the trolley structure (1), and the telescopic end of the first telescopic rod (3) is connected to one of the end templates (5).

3. A device for installing a waterstop belt based on a secondary lining trolley according to claim 1 or 2, characterized in that, Any two adjacent end templates (5) are hinged to each other.

4. The device for installing a waterstop belt based on a secondary lining trolley according to claim 3, characterized in that, The adjustment mechanism includes a second telescopic rod (6) that is inclinedly installed on the trolley structure (1), and the telescopic end of the second telescopic rod (6) is connected to its corresponding end template (5).

5. The device for installing a waterstop belt based on a secondary lining trolley according to claim 4, characterized in that, The system includes a secondary lining template (4), and a first mounting groove (10) is provided on the side wall of the end template (5). The secondary lining template (4) is detachably installed in the first mounting groove (10), and the fixing structure is installed in the first mounting groove (10). The fixing structure is used to fix the secondary lining template (4).

6. The device for installing a waterstop belt based on a secondary lining trolley according to claim 5, characterized in that, The fixing structure includes an internal threaded hole on one side of the first mounting groove (10), and a screw (11) is provided in the internal threaded hole for threaded connection therewith.

7. The device for installing a waterstop belt based on a secondary lining trolley according to claim 1, characterized in that, The end template (5) has a second mounting groove (12) on the side away from the trolley structure (1).

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