Tunnel construction steel formwork

Abstract

The utility model discloses a tunnel construction steel formwork which comprises an observation window, a sliding seat, two guide rods and a connecting block and is characterized in that the sliding seat is fixedly arranged on one side of the observation window, sliding grooves are symmetrically formed in the sliding seat and penetrate through the observation window, the two guide rods are arranged on the sliding grooves in a sliding mode, one ends of the two guide rods are fixedly connected with the connecting block, and the other ends of the two guide rods are fixedly connected with the connecting block. A fixing plate is fixedly arranged at the ends, away from the connecting block, of the two guide rods, an abutting mechanism for positioning a wood plate is arranged on the fixing plate, a receding groove for the fixing plate to slide in is formed in the observation window, a plurality of clamping grooves are formed in the guide rods and evenly formed in the length direction of the guide rods, and inserting block grooves communicating with the sliding groove are symmetrically formed in the sliding seat and correspond to the sliding groove; according to the utility model, the guide rod can slide by pulling the pull block, the guide rod can be limited by inserting the insertion block into the clamping groove, the template is limited through the abutting mechanism, and the operation is rapid and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction steel templates, in particular to a tunnel construction steel template. Background Art

[0002] During the construction of high-speed railway tunnels, the secondary lining construction of the tunnel after the primary support is completed requires the use of a tunnel secondary lining trolley. The trolley is equipped with a steel formwork specially used for tunnel construction. During the construction process, the steel formwork needs to be coated with a release agent and the rusted parts need to be polished. However, the existing trolley steel formwork polishing operation is to insert a wooden board in the observation window and then set up the wooden board, which is dangerous and inconvenient.

[0003] The utility model with publication number CN212508344U discloses a steel formwork for high-speed railway tunnel construction, including a steel formwork for a tunnel secondary lining trolley and an observation window hinged on the steel formwork. When the observation window is cast, an embedded block is provided on the use surface. The embedded block is connected to a connecting block through a guide rod. The guide rod passes through a sliding seat fixed on the observation window. The lower end of the connecting block and the sliding seat is connected through a horizontally arranged stud. A first nut and a second nut are screwed together on the stud at both sides of the connecting block. A bolt hole is vertically opened on the embedded block and a clamping screw is screwed inside. The clamping screw passes through a pad and the embedded block to clamp a wooden board. In the utility model, the observation window is fixed and the embedded block is pushed out. The guide rod and the embedded block are positioned by cooperation of the stud and the nut. The wooden board is fixed by the clamping screw and the pad, so as to provide a platform for tunnel workers to perform related operations of the steel formwork. The operation is simple and convenient. Compared with inserting and laying wooden boards in the observation window, it is stable and safe.

[0004] The above existing solution has the following problems: when the embedded block is pushed out, the first nut and the second nut need to be rotated continuously at the same time to move the connecting block, which is troublesome to operate and has a low speed. Utility Model Content

[0005] The utility model aims to provide a tunnel construction steel template to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tunnel construction steel formwork, including an observation window, a sliding seat, a guide rod and a connecting block. The sliding seat is fixedly arranged on one side of the observation window, and a sliding groove is symmetrically provided on the sliding seat and passes through the observation window. Two guide rods are provided and are slidably arranged on the sliding groove. One end of the two guide rods is fixedly connected to the connecting block, and a fixing plate is fixedly provided at the end of the two guide rods away from the connecting block. The fixing plate is provided with a tightening mechanism for positioning the wooden board. A yield groove for the fixing plate to slide into is provided on the observation window, a card slot is provided on the guide rod and multiple cards are evenly provided along the length direction of the guide rod, and an insertion block groove connected to the sliding groove is symmetrically provided on the sliding seat corresponding to the sliding groove. An insertion block inserted into the card slot is slidably provided in the insertion block groove, and a pulling block fixedly connected to the two insertion blocks is provided on the sliding seat.

[0007] Preferably, the inner wall of the insert block groove is symmetrically provided with limit grooves, and a limit block fixedly connected to the side wall of the insert block is slidably provided in the limit groove.

[0008] Preferably, a pulling groove is provided on the pulling block.

[0009] Preferably, a pressing groove is provided on the sliding seat, in which a pressing spring fixedly connected to the pulling block is fixedly provided, and the axis of the pressing spring is consistent with the axis of the pulling block.

[0010] Preferably, the clamping mechanism includes a clamping plate, a screw and a knob. A clamping plate groove is provided on the side of the fixed plate close to the observation window. The clamping plate is slidably arranged in the clamping plate groove. A threaded groove is provided at one end of the clamping plate located in the clamping plate groove. The screw is threadedly connected in the threaded groove and passes through the fixed plate. The end of the screw located outside the fixed plate is fixedly connected to the knob.

[0011] Preferably, a limiting ring groove is provided in the fixing plate on the circumferential side of the screw rod, and a limiting ring fixedly sleeved on the screw rod is rotatably arranged in the limiting ring groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: through the arrangement of the card slot, the plug-in block, the plug-in block slot, the pull block and the compression spring, the guide rod can be conveniently moved and fixed, and the operation is quick and convenient; through the arrangement of the fixing plate, the clamping plate, the clamping plate slot, the screw and the knob, the wooden board can be conveniently clamped and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 Schematic diagram of the appearance of this embodiment;

[0015] Figure 2 is a schematic diagram of the appearance of this embodiment from another viewing angle;

[0016] Figure 3 is a cross-sectional view of the pull block from the side of this embodiment;

[0017] Figure 4 This is a partial cross-sectional view of the knob when looking down at this embodiment.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Observation window; 2. Sliding seat; 3. Guide rod; 4. Connecting block; 5. Slide groove; 6. Card groove; 7. Insertion block groove; 8. Insertion block; 9. Pull block; 10. Pull groove; 11. Limiting groove; 12. Limiting block; 13. Pressing groove; 14. Pressing spring; 15. Give way groove; 16. Fixed plate; 17. Clamping plate; 18. Clamping plate groove; 19. Threaded groove; 20. Screw; 21. Knob; 22. Limiting ring groove; 23. Limiting ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a tunnel construction steel formwork, including an observation window 1, a sliding seat 2, a guide rod 3 and a connecting block 4. The sliding seat 2 is fixedly arranged on one side of the observation window 1, and a slide groove 5 is symmetrically opened on the sliding seat 2 and passes through the observation window 1. Two guide rods 3 are provided and slidably arranged on the slide groove 5. One end of the two guide rods 3 is fixedly connected to the connecting block 4. A fixing plate 16 is fixedly arranged at one end of the two guide rods 3 away from the connecting block 4. The fixing plate 16 is provided with a tightening mechanism for positioning a wooden board. A makeshift groove 15 for the fixing plate 16 to slide into is opened on the observation window 1, a card slot 6 is opened on the guide rod 3, and a plurality of cards are evenly arranged along the length direction of the guide rod 3. An insert block groove 7 connected to the slide groove 5 is symmetrically opened on the sliding seat 2 corresponding to the slide groove 5. An insert block 8 inserted into the card slot 6 is slidably provided in the insert block groove 7, and a pull block 9 fixedly connected to the two insert blocks 8 is provided on the sliding seat 2.

[0022] Specifically, the inner wall of the insert block slot 7 is symmetrically provided with a limit slot 11, and a limit block 12 fixedly connected to the side wall of the insert block 8 is slidably provided in the limit slot 11. The limit slot 11 and the limit block 12 prevent the insert block 8 from sliding out of the insert block slot 7.

[0023] Specifically, a pull groove 10 is provided on the pull block 9 , and the pull groove 10 facilitates pulling the pull block 9 .

[0024] Specifically, a clamping groove 13 is opened on the sliding seat 2, and a clamping spring 14 fixedly connected to the pull block 9 is fixed in the clamping groove 13. The axis of the clamping spring 14 is consistent with the axis of the pull block 9. When the pull block 9 is in contact with the sliding seat 2, the clamping spring 14 is still in an elongated state. Under the elastic force of the clamping spring 14, the pull block 9 is pressed against the sliding seat 2, so that the insertion block 8 can be stably inserted into the slot 6.

[0025] Specifically, the clamping mechanism includes a clamping plate 17, a screw rod 20 and a knob 21. A clamping plate groove 18 is provided on the side of the fixed plate 16 close to the observation window 1. The clamping plate 17 is slidably arranged in the clamping plate groove 18. A threaded groove 19 is provided at one end of the clamping plate 17 located in the clamping plate groove 18. The screw rod 20 is threadedly connected in the threaded groove 19 and passes through the fixed plate 16. The end of the screw rod 20 located outside the fixed plate 16 is fixedly connected to the knob 21. Turning the knob 21 drives the screw rod 20 to rotate. The threaded connection between the screw rod 20 and the threaded groove 19 allows the clamping plate 17 to move, so that it can be used to clamp the wooden board.

[0026] Specifically, a limiting ring groove 22 is provided in the fixing plate 16 on the circumferential side of the screw rod 20, and a limiting ring 23 fixedly sleeved on the screw rod 20 is rotatably provided in the limiting ring groove 22. The limiting ring groove 22 and the limiting ring 23 prevent the screw rod 20 from axial movement.

[0027] A specific application example of this embodiment is:

[0028] When the device is in use, when it is necessary to fix the wooden board, the pulling block 9 is pulled to pull the inserting block 8, so that the inserting block 8 leaves the slot 6 and the clamping spring 14 is stretched, the guide rod 3 loses its limit and moves in the slide slot 5. After sliding to the required length, the pulling block 9 is released, and under the elastic force of the clamping spring 14, the pulling block 9 is pressed down and drives the inserting block 8 to insert into the slot 6 to limit the guide rod 3, and the wooden board is placed on the guide rod 3 close to the fixed plate 16 side, and the knob 21 is turned to drive the screw rod 20 to rotate. The threaded connection between the screw rod 20 and the threaded groove 19 allows the clamping plate 17 to move, so that the wooden board can be clamped, and the other side of the wooden board is against the observation window 1, thereby completing the fixation of the wooden board, and the operation is quick and convenient.

[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that modifications may be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel construction steel formwork, comprising an observation window (1), a sliding seat (2), a guide rod (3) and a connecting block (4), characterized in that: The sliding seat (2) is fixedly arranged on one side of the observation window (1), and a sliding groove (5) is symmetrically provided on the sliding seat (2) and penetrates the observation window (1). Two guide rods (3) are provided and are slidably arranged on the sliding groove (5). One end of the two guide rods (3) is fixedly connected to the connecting block (4), and a fixing plate (16) is fixedly provided on the ends of the two guide rods (3) away from the connecting block (4). The fixing plate (16) is provided with a tightening mechanism for positioning the wooden board. A clearance groove (15) for the fixing plate (16) to slide into is provided on the observation window (1), and a clamping groove (6) is provided on the guide rod (3) and a plurality of grooves are evenly provided along the length direction of the guide rod (3). The sliding seat (2) is symmetrically provided with an inserting block groove (7) connected to the sliding groove (5) corresponding to the sliding groove (5), and an inserting block (8) inserted into the clamping groove (6) is slidably provided in the inserting block groove (7). The sliding seat (2) is provided with a pulling block (9) fixedly connected to the two inserting blocks (8).

2. A tunnel construction steel formwork according to claim 1, characterized in that: The inner wall of the insert block groove (7) is symmetrically provided with a limit groove (11), and a limit block (12) fixedly connected to the side wall of the insert block (8) is slidably provided in the limit groove (11).

3. A tunnel construction steel formwork according to claim 1, characterized in that: The pulling block (9) is provided with a pulling groove (10).

4. A tunnel construction steel formwork according to claim 1, characterized in that: The sliding seat (2) is provided with a clamping groove (13), in which a clamping spring (14) fixedly connected to the pull block (9) is fixedly arranged, and the axis of the clamping spring (14) is consistent with the axis of the pull block (9).

5. The tunnel construction steel formwork according to claim 1, characterized in that: The clamping mechanism comprises a clamping plate (17), a screw rod (20) and a knob (21); a clamping plate groove (18) is provided on a side of the fixed plate (16) close to the observation window (1); the clamping plate (17) is slidably arranged in the clamping plate groove (18); a threaded groove (19) is provided at one end of the clamping plate (17) located in the clamping plate groove (18); the screw rod (20) is threadedly connected in the threaded groove (19) and passes through the fixed plate (16); and the end of the screw rod (20) located outside the fixed plate (16) is fixedly connected to the knob (21).

6. A tunnel construction steel formwork according to claim 5, characterized in that: A limiting ring groove (22) is provided in the fixing plate (16) on the circumferential side of the screw rod (20), and a limiting ring (23) fixedly sleeved on the screw rod (20) is rotatably arranged in the limiting ring groove (22).

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