Inverted arch form anti-floating device

Abstract

The utility model discloses an inverted arch formwork anti -floating device, it includes inverted arch formwork block, extrusion board: the inverted arch formwork block sets up at the downside of extrusion board, the upside of extrusion board is fixedly connected with square block no.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to an anti-floating device for inverted arch formwork. Background Technology

[0002] Tunnel invert formwork is an indispensable tool in tunnel construction, and its design and use provide strong guarantees for tunnel construction and quality. When selecting and using it, the specific needs and conditions of the project should be considered to choose the appropriate formwork type and specifications to ensure smooth construction and high-standard project quality.

[0003] The existing invert arch formwork is not stable enough during the concrete pouring process and is prone to floating up. Floating of the formwork will lead to uneven concrete pouring, forming voids or honeycomb structures, and reducing the overall strength and stability of the invert arch. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology where the inverted arch formwork is not fixed and is prone to floating during concrete pouring, one of the purposes of this utility model is to provide an anti-floating device for inverted arch formwork.

[0005] One of the objectives of this utility model is achieved by the following technical solution: an anti-floating device for an inverted arch template, comprising an inverted arch template block and an extrusion plate: the inverted arch template block is disposed on the lower side of the extrusion plate, a square block 1 is fixedly connected to the upper side of the extrusion plate, two square blocks 1 are provided, a groove is provided on the upper side of the square block 1, a square block 2 is disposed inside the groove, the square block 2 and the square block 1 are slidably connected, a support plate is fixedly connected to the upper side of the square block 2, a locking block is fixedly connected to the upper side of the support plate, and a lifting structure is provided on the outer side of the square block 1;

[0006] The lifting structure includes a threaded groove on the lower side of the square block two. A threaded rod is installed inside the threaded groove. A first bevel gear and a second bevel gear are installed inside the groove, meshing with each other. A circular hole is formed on the front side of the square block one, and a circular rod is installed inside the hole. A cylindrical block is fixedly connected to the front end of the circular rod. This facilitates the lifting of the upper support plate, thus securing the inverted arch formwork block and preventing it from floating during concrete pouring.

[0007] According to the aforementioned anti-floating device for inverted arch formwork, a square groove is provided on the lower side of the extrusion plate, and two square grooves are provided. A fixing block is provided inside the square groove, and a limit block is fixedly connected to the upper side of the inverted arch formwork block. This facilitates fixing the extrusion plate so that it does not move or become misaligned.

[0008] According to the aforementioned anti-floating device for inverted arch formwork, the fixing block and the inverted arch formwork block are fixedly connected, and the fixing block and the extrusion plate are slidably connected. This facilitates the sliding of the fixing block.

[0009] According to the aforementioned anti-floating device for inverted arch formwork, two limiting blocks are provided on each of the left and right sides of the inverted arch formwork block, and the pressing plate is disposed between the limiting blocks on the left and right sides of the inverted arch formwork block and is slidably connected to the limiting blocks. This allows the limiting blocks to restrain the pressing plate, preventing it from moving arbitrarily.

[0010] According to the aforementioned anti-floating device for an inverted arch template, the threaded rod and the square block are connected by two threads, and the lower end of the threaded rod is fixedly connected to a bevel gear. This facilitates the rotation of the threaded rod.

[0011] According to the aforementioned anti-floating device for an inverted arch template, the rear end of the round rod is fixedly connected to the second bevel gear, and the round rod is slidably connected to the first square block. This facilitates the movement of the second square block by the round rod.

[0012] According to the aforementioned anti-floating device for an arch formwork, sliding grooves are provided on the left and right sides inside the groove, and sliders are provided inside the sliding grooves. The sliders are fixedly connected to square block two, and the sliders are slidably connected to square block one. This facilitates restricting square block two from moving out of the groove.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] 1. The lifting structure facilitates the fixing of the invert arch formwork blocks, preventing them from floating during concrete pouring. This ensures uniform concrete pouring and prevents the formation of voids or honeycomb structures, thereby enhancing the overall strength and stability of the invert arch. Simultaneously, workers can adjust the height of the support plates and extrusion plates according to the tunnel's elevation to fix the invert arch formwork blocks, reducing the workload of replacing anti-floating devices.

[0015] 2. By setting up square grooves, fixing blocks, limiting blocks, and locking blocks, the movement of the entire extrusion plate device is restricted, preventing it from sliding or shifting, thus ensuring the stability of the invert arch template block.

[0016] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a front view structural diagram of the anti-floating device for an inverted arch formwork according to the present invention;

[0019] Figure 2 This is a schematic diagram of the lifting structure of a partial lifting device for an anti-floating device of an arch formwork according to this utility model;

[0020] Figure 3 This is a schematic diagram of another part of the lifting structure of the anti-floating device for an arch template according to this utility model;

[0021] Figure 4 This is a structural schematic diagram of a square groove, fixing block, and extrusion plate for an anti-floating device for an arch template according to this utility model.

[0022] Legend:

[0023] 1. Inverted arch formwork block; 2. Extrusion plate; 3. Square block one; 4. Groove; 5. Square block two; 6. Support plate; 7. Locking block; 8. Lifting structure; 801. Threaded groove; 802. Threaded rod; 803. Bevel gear one; 804. Bevel gear two; 805. Round hole; 806. Round rod; 807. Cylindrical block; 808. Sliding groove; 809. Sliding block; 9. Square groove; 10. Fixing block; 11. Limiting block. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-4An anti-floating device for an inverted arch template includes an inverted arch template block 1 and an extrusion plate 2. The inverted arch template block 1 is disposed on the lower side of the extrusion plate 2. Two square blocks 3 are fixedly connected to the upper side of the extrusion plate 2. A groove 4 is formed on the upper side of the square blocks 3, and a square block 5 is disposed inside the groove 4. The square blocks 5 and the square blocks 3 are slidably connected. A support plate 6 is fixedly connected to the upper side of the square blocks 5, and a locking block 7 is fixedly connected to the upper side of the support plate 6. A lifting structure 8 is disposed on the outer side of the square blocks 3. Two square grooves 9 are formed on the lower side of the extrusion plate 2, and a fixing block 10 is disposed inside the square groove 9. A limit block 11 is fixedly connected to the upper side of the inverted arch template block 1. The 0 and the arch template block 1 are fixedly connected, the fixing block 10 and the extrusion plate 2 are slidably connected, the limiting blocks 11 are provided on the left and right sides of the arch template block 1, and the extrusion plate 2 is provided between the limiting blocks 11 on the left and right sides of the arch template block 1 and is slidably connected with the limiting blocks 11. The lifting structure 8 includes a threaded groove 801, which is opened on the lower side of the square block 2 5. A threaded rod 802 is provided inside the threaded groove 801. A bevel gear 1 803 and a bevel gear 2 804 are provided inside the groove 4. The bevel gear 1 803 and the bevel gear 2 804 are meshed and connected. A round hole 805 is opened on the front side of the square block 1 3. A round rod 806 is provided inside the round hole 805. The front end of the round rod 806 is fixedly connected to A cylindrical block 807 is connected to a threaded rod 802 and a square block 5. The lower end of the threaded rod 802 is fixedly connected to a bevel gear 803. The rear end of the cylindrical rod 806 is fixedly connected to a bevel gear 804. The cylindrical rod 806 is slidably connected to the square block 3. Slide grooves 808 are provided on the left and right sides inside the groove 4. A slider 809 is installed inside the slide groove 808. The slider 809 is fixedly connected to the square block 5 and slidably connected to the square block 3. When the operator needs to adjust the height between the support plate 6 and the extrusion plate 2, the operator holds the cylindrical block 807 and rotates it, causing the cylindrical rod 806 to rotate. The cylindrical rod 806 then rotates the bevel gear 803. 803 drives bevel gear 804 to rotate, which in turn drives threaded rod 802 to rotate. The rotation of threaded rod 802 drives square block 5 to move. At the same time, square block 5 drives slider 809 to move in groove 808. The slider 809 is designed to prevent square block 5 from sliding out of groove 4. The lifting structure 8 is designed to fix the invert arch formwork block 1, so that it will not float during concrete pouring, ensuring that the concrete is poured evenly and will not form voids or honeycomb structures, thus enhancing the overall strength and stability of the invert arch. At the same time, workers can adjust the height of support plate 6 and extrusion plate 2 according to the height of the tunnel, thereby fixing the invert arch formwork block 1 and reducing the workload of workers replacing anti-floating devices.

[0026] Working principle: Before pouring concrete, the workers first fix the invert arch formwork block 1. Then, the workers slide the extrusion plate 2 between the limiting blocks 11 and simultaneously insert the fixing block 10 into the square groove 9 to restrict the movement of the extrusion plate 2 and prevent it from sliding or misaligning, thus ensuring the stability of the invert arch formwork block 1. At this time, according to the height of the tunnel, the workers activate the lifting structure 8 to move the square block 5, so that the locking block 7 on the upper side of its support plate 6 is inserted into the two upper slots of the tunnel to fix the entire invert arch formwork block 1. This ensures that the concrete is poured evenly and does not form voids or honeycomb structures, thus enhancing the overall strength and stability of the invert arch. After the concrete is poured, the extrusion plate 2 and other structural devices are moved away, and the two upper slots of the tunnel are filled. Then, the workers continue with the next step of the invert arch construction.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model 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 the present utility model.

Claims

1. A device for preventing the floating of an arch formwork, characterized in that, Includes an inverted arch template block (1) and an extrusion plate (2): the inverted arch template block (1) is located on the lower side of the extrusion plate (2), and a square block one (3) is fixedly connected to the upper side of the extrusion plate (2). There are two square blocks one (3). A groove (4) is opened on the upper side of the square block one (3). A square block two (5) is arranged inside the groove (4). The square block two (5) and the square block one (3) are slidably connected. A support plate (6) is fixedly connected to the upper side of the square block two (5). A locking block (7) is fixedly connected to the upper side of the support plate (6). A lifting structure (8) is arranged on the outer side of the square block one (3). The lifting structure (8) includes a threaded groove (801), which is opened on the lower side of the square block 2 (5). A threaded rod (802) is provided inside the threaded groove (801). A bevel gear 1 (803) and a bevel gear 2 (804) are provided inside the groove (4). The bevel gear 1 (803) and the bevel gear 2 (804) are meshed together. A round hole (805) is opened on the front side of the square block 1 (3). A round rod (806) is provided inside the round hole (805). A cylindrical block (807) is fixedly connected to the front end of the round rod (806).

2. The anti-floating device for inverted arch formwork according to claim 1, characterized in that, The extrusion plate (2) has a square groove (9) on its lower side. There are two square grooves (9). A fixing block (10) is provided inside the square groove (9). A limit block (11) is fixedly connected to the upper side of the arch template block (1).

3. The anti-floating device for inverted arch formwork according to claim 2, characterized in that, The fixing block (10) and the arch template block (1) are fixedly connected, and the fixing block (10) and the extrusion plate (2) are slidably connected.

4. The anti-floating device for an inverted arch formwork according to claim 2, characterized in that, Two limiting blocks (11) are provided on each of the left and right sides of the arch template block (1), and the extrusion plate (2) is provided between the limiting blocks (11) on the left and right sides of the arch template block (1) and is slidably connected to the limiting blocks (11).

5. The anti-floating device for inverted arch formwork according to claim 1, characterized in that, The threaded rod (802) and the square block two (5) are threaded together, and the lower end of the threaded rod (802) is fixedly connected to the bevel gear one (803).

6. The anti-floating device for inverted arch formwork according to claim 1, characterized in that, The rear end of the round rod (806) is fixedly connected to the second bevel gear (804), and the round rod (806) is slidably connected to the first square block (3).

7. The anti-floating device for inverted arch formwork according to claim 1, characterized in that, The groove (4) has sliding grooves (808) on the left and right sides. The sliding groove (808) has a slider (809) inside. The slider (809) is fixedly connected to the second square block (5), and the slider (809) is slidably connected to the first square block (3).

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