A telescopic two-lining trolley hole-free support adjusting device

Abstract

The utility model discloses a telescopic two lining trolley exempt from punching support adjusting device relates to tunnel construction technical field, including outer fixed cylinder, external strengthening component, electric jar and positioning assembly, the inside fixed mounting of outer fixed cylinder has hydraulic cylinder, the output fixedly connected with second push plate of electric jar, the top bolted connection of second push plate has flange plate. This telescopic two lining trolley exempt from punching support adjusting device is provided with outer fixed cylinder, external strengthening component, when using, outer fixed cylinder, outer sliding cylinder pipe, fixed seat, two -stage fixed cylinder body and first push plate form a set of movable reinforcing kit outside hydraulic cylinder, replace hydraulic cylinder and bear radial pressure, improve the ability of hydraulic cylinder radial pressure, reduce its damage probability, realized the function of enhancing radial pressure resistance, solve the problem that the existing support adjusting system radial force exists short board.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to a telescopic secondary lining trolley support adjustment device that does not require drilling. Background Technology

[0002] In tunnel and underground engineering construction, secondary lining is a crucial process to ensure the long-term stability and safety of the structure. The secondary lining trolley, as a key piece of equipment for forming the lining concrete, directly determines the geometric dimensions, concrete density, and surface quality of the lining structure through the reliability of its support system. When encountering irregular cross-sections such as variable sections, intersections, and transition sections, the support of the trolley formwork becomes particularly complex, placing higher demands on the flexibility, stability, and load-bearing capacity of the support device.

[0003] To meet this demand, existing technologies have developed support adjustment devices that use hydraulic cylinders as actuating elements to replace traditional screw supports. These hydraulic support devices achieve stepless adjustment of the support length through the extension and retraction of the cylinders, significantly improving the convenience and efficiency of construction. Meanwhile, to protect the formwork and improve flexibility, drilling-free connection methods, such as magnetic bases, are also gradually being adopted.

[0004] However, those skilled in the art have discovered in practice that such hydraulic cylinder-based support devices have a significant technical shortcoming: their ability to resist radial loads (i.e., pressure perpendicular to the cylinder axis) is generally weak. This is because hydraulic cylinders are designed to withstand axial pressure, and their piston rods are prone to bending deformation when subjected to radial forces, leading to damage to seals, scoring of the cylinder inner wall, and ultimately cylinder failure, hydraulic oil leakage, and instantaneous instability of the entire support system. Under complex working conditions with irregular cross-sections, the uncertainty of the support point position and angle means that the hydraulic cylinder piston rod will inevitably be subjected to radial forces or eccentric loads in various directions, especially under dynamic loads such as concrete pumping impacts and slight deformation of formwork, where this problem is even more prominent.

[0005] Now, a novel telescopic secondary lining trolley hole-free support adjustment device is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a telescopic double-lining trolley support adjustment device without drilling, so as to solve the problem of the shortcomings of the existing support adjustment system in resisting radial force mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a telescopic double-lining trolley without drilling support adjustment device, comprising an outer fixed cylinder, an external reinforcing component, an electric cylinder and a positioning component, wherein a hydraulic cylinder is fixedly installed inside the outer fixed cylinder, and a second push plate is fixedly connected to the output end of the electric cylinder, and a flange plate is bolted to the top end of the second push plate.

[0008] The external reinforcing component includes an outer sliding tube, which is sleeved on the outside of the outer fixed tube. Fixed seats are welded and fixed on the left and right sides of the outer sliding tube, and a secondary fixed tube is welded and fixed to the top of the fixed seat. A first push plate is bolted between the tops of the two sets of secondary fixed tubes, and a micro controller is fixedly installed at the front end of the outer sliding tube.

[0009] As a further technical solution of this utility model, the output end of the hydraulic cylinder and the bottom end of the first push plate are fixedly connected, and the vertical center lines of the outer fixed cylinder, the outer sliding cylinder and the first push plate coincide.

[0010] As a further technical solution of this utility model, the inner diameter of the outer sliding tube is adapted to the outer diameter of the outer fixed tube, and the outer sliding tube can slide up and down along the outside of the outer fixed tube.

[0011] As a further technical solution of this utility model, the secondary fixed cylinder is symmetrically distributed about the vertical center line of the outer fixed cylinder, and the vertical center lines of the first push plate, the second push plate, and the flange plate coincide.

[0012] As a further technical solution of this utility model, the electric cylinder is fixedly installed inside the secondary fixed cylinder, and the electric cylinder and the micro controller are electrically connected.

[0013] As a further technical solution of this utility model, the positioning component includes a laser emitter, which is fixedly installed at the middle position of the top of the first push plate. The front end of the laser emitter is provided with an on / off switch. A target is fixedly connected at the middle position of the bottom of the second push plate, and the bottom of the target is printed with scale patterns.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the telescopic double lining trolley no-drill support adjustment device not only realizes the function of enhancing the radial pressure resistance, but also realizes the function of increasing the working stroke, and also realizes the function of facilitating the inspection of support stability; (1) By setting an external fixed cylinder and external reinforcing components, when in use, the hydraulic cylinder serves as the main power source for support adjustment and can provide axial support force for the template on the secondary lining trolley. An external fixed cylinder is added to the outside of the hydraulic cylinder as external protection. When the hydraulic cylinder extends, it pushes the first push plate to move. The first push plate pulls the outer sliding cylinder to slide up and down through the secondary fixed cylinder. The external fixed cylinder, the outer sliding cylinder, the fixed seat, the secondary fixed cylinder and the first push plate form a set of movable reinforcing components outside the hydraulic cylinder, which replace the hydraulic cylinder in bearing radial pressure, improves the hydraulic cylinder's ability to resist radial pressure, reduces its probability of damage, and realizes the function of enhancing the ability to resist radial pressure. (2) By setting up a hydraulic cylinder, an electric cylinder, a second push plate and a flange plate, when in use, the electric cylinder further increases its working range on the basis of the stroke of the hydraulic cylinder, the electric cylinder extends to push the second push plate and the flange plate to move, and the flange plate facilitates the installation of the template connecting parts, thus realizing the function of increasing the working stroke; (3) By setting up positioning components, during the support and molding process, the inspection personnel regularly inspect the stability of each support position. A short press of the power switch turns on the laser emitter, and the laser emitted by the laser emitter falls on the target. The staff observes the position of the laser point on the target. If the laser point deviates from the center of the target, it indicates that the support is tilted and needs to be adjusted in time to prevent structural problems from occurring on the tunnel wall. A long press of the power switch turns off the laser emitter, thus realizing the function of conveniently checking the stability of the support. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a front view cross-sectional structural diagram of the outer fixing cylinder of this utility model; Figure 3 This is a top-view enlarged structural diagram of the first push plate of this utility model; Figure 4 This is a magnified view of the second pusher plate structure of this utility model from below.

[0016] In the diagram: 1. Outer fixed cylinder; 2. External reinforcing assembly; 201. Outer sliding cylinder; 202. Fixed seat; 203. Secondary fixed cylinder; 204. First push plate; 205. Microcontroller; 3. Hydraulic cylinder; 4. Electric cylinder; 5. Second push plate; 6. Flange plate; 7. Positioning assembly; 701. Laser emitter; 702. Switch; 703. Target. Detailed Implementation

[0017] 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.

[0018] Example: Please refer to Figure 1-4 A telescopic secondary lining trolley without drilling support adjustment device includes an outer fixed cylinder 1, an external reinforcing component 2, an electric cylinder 4 and a positioning component 7. A hydraulic cylinder 3 is fixedly installed inside the outer fixed cylinder 1. A second push plate 5 is fixedly connected to the output end of the electric cylinder 4. A flange plate 6 is bolted to the top end of the second push plate 5. Please see Figure 1-4A telescopic secondary lining trolley without drilling support adjustment device also includes an external reinforcing component 2. The external reinforcing component 2 includes an outer sliding tube 201, which is sleeved on the outside of the outer fixed tube 1. Fixed seats 202 are welded and fixed on the left and right sides of the outer sliding tube 201 respectively. A secondary fixed tube 203 is welded and fixed to the top of the fixed seat 202. A first push plate 204 is bolted between the tops of the two sets of secondary fixed tubes 203. A micro controller 205 is fixedly installed at the front end of the outer sliding tube 201. The output end of the hydraulic cylinder 3 is fixedly connected to the bottom end of the first push plate 204. The vertical center lines of the outer fixed cylinder 1, the outer sliding cylinder 201, and the first push plate 204 coincide. The inner diameter of the outer sliding cylinder 201 is matched with the outer diameter of the outer fixed cylinder 1. The outer sliding cylinder 201 can slide up and down along the outside of the outer fixed cylinder 1. The secondary fixed cylinder 203 is symmetrically distributed about the vertical center line of the outer fixed cylinder 1. The vertical center lines of the first push plate 204, the second push plate 5, and the flange plate 6 coincide, thereby improving the ability to resist radial pressure. Specifically, such as Figure 1 and Figure 2 As shown, the outer fixed cylinder 1, the outer sliding cylinder 201, the fixed seat 202, the secondary fixed cylinder 203 and the first push plate 204 form a set of movable reinforcing components on the outside of the hydraulic cylinder 3, which replace the hydraulic cylinder 3 in bearing radial pressure, improve the hydraulic cylinder 3's ability to resist radial pressure, and reduce its probability of damage.

[0019] The electric cylinder 4 is fixedly installed inside the secondary fixed cylinder 203. The electric cylinder 4 and the microcontroller 205 are electrically connected to increase the stroke range of the support system. Specifically, such as Figure 1 and Figure 2 As shown, based on the stroke of the hydraulic cylinder 3, the electric cylinder 4 further increases its working range. The electric cylinder 4 extends to push the second push plate 5 and the flange plate 6 to move. The flange plate 6 facilitates the installation of the template connector.

[0020] The positioning component 7 includes a laser emitter 701, which is fixedly installed at the middle position of the top of the first push plate 204. A switch 702 is provided at the front end of the laser emitter 701. A target 703 is fixedly connected at the middle position of the bottom of the second push plate 5. The bottom of the target 703 is printed with scale patterns to facilitate checking the stability of the support. Specifically, such as Figure 1 , Figure 3 and Figure 4As shown, a short press of the power switch 702 turns on the laser emitter 701. The laser emitted by the laser emitter 701 falls on the target 703. The staff observes the position of the laser point on the target 703. If the laser point deviates from the center of the target 703, it indicates that the support is tilted and needs to be adjusted in time to prevent structural problems from occurring on the tunnel wall. A long press of the power switch 702 turns off the laser emitter 701.

[0021] Working Principle: In use, the hydraulic cylinder 3 serves as the main power source for support and adjustment, providing axial support to the template on the secondary lining trolley. An external fixed cylinder 1 is added to the outside of the hydraulic cylinder 3 for external protection. When the hydraulic cylinder 3 extends, it pushes the first push plate 204 to move. The first push plate 204, through the secondary fixed cylinder 203, pulls the outer sliding cylinder 201 up and down. The external fixed cylinder 1, outer sliding cylinder 201, fixed seat 202, secondary fixed cylinder 203, and first push plate 204 form a movable reinforcing assembly outside the hydraulic cylinder 3, replacing the hydraulic cylinder 3 in bearing radial pressure, improving the hydraulic cylinder 3's ability to resist radial pressure, and reducing its probability of damage. Based on the stroke of the hydraulic cylinder 3, the electric cylinder 4 further increases its working range. The electric cylinder 4 extends and pushes the second push plate 5 and flange plate 6 to move. The flange plate 6 facilitates the installation of the template connecting parts. During the support and molding process, the inspection personnel regularly check the stability of each support position. A short press of the power switch 702 turns on the laser emitter 701, and the laser emitted by the laser emitter 701 falls on the target 703. The staff observes the position of the laser point on the target 703. If the laser point deviates from the center of the target 703, it indicates that the support is tilted and needs to be adjusted in time to prevent structural problems from occurring on the tunnel wall. A long press of the power switch 702 turns off the laser emitter 701.

[0022] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A telescopic double-lining trolley without drilling support and adjustment device, comprising an outer fixed cylinder (1), an external reinforcing component (2), an electric cylinder (4), and a positioning component (7), characterized in that: A hydraulic cylinder (3) is fixedly installed inside the outer fixed cylinder (1), and a second push plate (5) is fixedly connected to the output end of the electric cylinder (4). A flange plate (6) is bolted to the top of the second push plate (5). The external reinforcing component (2) includes an external sliding tube (201), which is sleeved on the outside of the external fixed tube (1). Fixing seats (202) are welded and fixed on the left and right sides of the external sliding tube (201). A secondary fixed tube (203) is welded and fixed to the top of the fixing seat (202). A first push plate (204) is bolted between the tops of the two sets of secondary fixed tubes (203). A micro controller (205) is fixedly installed at the front end of the external sliding tube (201).

2. The telescopic secondary lining trolley no-drill support adjustment device according to claim 1, characterized in that: The output end of the hydraulic cylinder (3) is fixedly connected to the bottom end of the first push plate (204), and the vertical center lines of the outer fixed cylinder (1), the outer sliding cylinder (201), and the first push plate (204) coincide.

3. The telescopic secondary lining trolley no-drill support adjustment device according to claim 1, characterized in that: The inner diameter of the outer sliding tube (201) is adapted to the outer diameter of the outer fixed tube (1), and the outer sliding tube (201) can slide up and down along the outside of the outer fixed tube (1).

4. The telescopic secondary lining trolley no-drill support adjustment device according to claim 1, characterized in that: The secondary fixed cylinder (203) is symmetrically distributed about the vertical center line of the outer fixed cylinder (1), and the vertical center lines of the first push plate (204), the second push plate (5), and the flange plate (6) coincide.

5. The telescopic secondary lining trolley no-drill support adjustment device according to claim 1, characterized in that: The electric cylinder (4) is fixedly installed inside the secondary fixed cylinder (203), and the electric cylinder (4) and the microcontroller (205) are electrically connected.

6. The telescopic secondary lining trolley no-drill support adjustment device according to claim 1, characterized in that: The positioning component (7) includes a laser emitter (701), which is fixedly installed at the middle position of the top of the first push plate (204). A switch (702) is provided at the front end of the laser emitter (701). A target (703) is fixedly connected at the middle position of the bottom end of the second push plate (5). The bottom of the target (703) is printed with scale patterns.

Images