Automatic straightening device for civil air defense door frame

Abstract

The utility model relates to the technical field of civil air defense door straightening, in particular to an automatic civil air defense door frame straightening device which comprises a bottom plate, a supporting frame is arranged at the upper end of the bottom plate, a pressing structure is arranged on the supporting frame, the pressing structure is in driving connection with a sliding supporting plate connected with the supporting frame in a sliding mode, and a position adjusting structure is arranged on the sliding supporting plate. The position adjusting structure comprises a sliding pressing plate connected with the inner wall of the sliding supporting plate in a sliding mode, a straightening pressing block is arranged at the lower end of the sliding pressing plate, a straightening plate is connected to the upper end of the bottom plate in a sliding mode, a clamping and fixing structure is arranged on the straightening plate, and the clamping and fixing structure comprises a pair of clamping blocks moving oppositely. The problems that when a straightening device in the prior art straightens a door frame, due to the fact that the door frame is not provided with a limiting and fixing structure, the door frame can deviate, straightening deviation of the door frame occurs, and the straightening effect of the door frame is affected are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of civil defense door straightening technology, and in particular to an automatic straightening device for civil defense door frames. Background Technology

[0002] A civil defense door consists of a door leaf and a door frame. During the manufacturing process of the door frame, because the door frame is a long strip structure, it is prone to deformation. Therefore, the door frame needs to be straightened to meet the application requirements.

[0003] When existing straightening devices straighten door frames, the lack of a limiting and fixing structure causes the door frame to shift, resulting in deviations in the straightening process and affecting the straightening effect. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing an automatic straightening device for civil defense door frames. This effectively solves the problem that existing straightening devices, when straightening door frames, cause the door frames to shift due to the lack of a limiting and fixing structure, resulting in deviations in the straightening process and affecting the straightening effect.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows:

[0006] An automatic straightening device for civil defense door frames includes a base plate, a support frame at the upper end of the base plate, a pressing structure on the support frame, a sliding plate slidably connected to the support frame via the pressing structure, a position adjustment structure on the sliding plate including a sliding pressure plate slidably connected to the inner wall of the sliding plate, a straightening block at the lower end of the sliding pressure plate, a straightening plate slidably connected to the upper end of the base plate, and a clamping and fixing structure on the straightening plate including a pair of clamping blocks that move in opposite directions.

[0007] The pressing structure includes a hydraulic cylinder connected to the support frame, and the output end of the hydraulic cylinder is connected to the sliding plate.

[0008] The position adjustment structure also includes a screw rod rotatably connected to the sliding plate, a slider fixedly connected to the upper end of the sliding plate, and a screw cylinder threadedly connected to the screw rod fixedly connected to the inner wall of the slider.

[0009] The clamping and fixing structure also includes a worm gear rotatably connected to the straightening plate. The worm gear meshes with a worm wheel, and the worm wheel is coaxially and fixedly connected to a central connecting rod. The two ends of the central connecting rod are respectively rotatably connected to side connecting rods. One end of the side connecting rod is provided with a sliding column that is slidably connected to the inner wall of the straightening plate. The sliding column is fixedly connected to the clamping block.

[0010] The middle end of the connecting rod is coaxially and fixedly connected to the worm gear, and the support shafts of both are rotatably connected to the straightening plate.

[0011] The straightening plate is provided with support slide plates at both ends, which are slidably connected to the inner wall of the base plate.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] 1. This utility model, by setting up a clamping and fixing structure, allows the clamping blocks to move towards each other, thereby fixing the door frame to the straightening plate. This effectively prevents the door frame from shifting during the straightening process, thus avoiding deviations in the straightening of the door frame and affecting the straightening effect.

[0014] 2. By setting the position adjustment structure, the sliding pressure plate slides along the inner wall of the sliding support plate. The position of the straightening pressure block at the lower end of the sliding pressure plate is adjusted according to the position of the door frame to be straightened. Attached Figure Description

[0015] Figure 1 This is an isometric drawing of the automatic straightening device for civil defense door frames of this utility model;

[0016] Figure 2 Schematic diagram I shows the position adjustment structure of the automatic straightening device for civil defense door frames of this utility model;

[0017] Figure 3 Schematic diagram II of the position adjustment structure of the automatic straightening device for civil defense door frames of this utility model;

[0018] Figure 4 This is a schematic diagram of the clamping and fixing structure of the automatic straightening device for civil defense door frames of this utility model;

[0019] Figure 5 This is a schematic diagram of the sliding column of the automatic straightening device for civil defense door frames of this utility model;

[0020] The following are the labels in the diagram: 1-Base plate, 2-Support frame, 3-Sliding plate, 4-Hydraulic cylinder, 5-Straightening plate, 6-Clamping block, 7-Pull handle, 8-Supporting slide plate, 9-Straightening pressure block, 10-Support column, 11-Sliding pressure plate, 12-Screw, 13-Slider, 14-Screw barrel, 15-Rotating handle, 16-Handle, 17-Worm gear, 18-Side connecting rod, 19-Central connecting rod, 20-Worm wheel, 21-Sliding column. Detailed Implementation

[0021] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] like Figure 1-5As shown, the automatic straightening device for the air-raid shelter door frame includes a base plate 1. A support frame 2 is provided at the upper end of the base plate 1. A pressing structure is provided on the support frame 2. The pressing structure is driven to connect a sliding support plate 3 that is slidably connected to the support frame 2. A position adjustment structure is provided on the sliding support plate 3. The position adjustment structure includes a sliding pressure plate 11 that is slidably connected to the inner wall of the sliding support plate 3. A straightening pressure block 9 is provided at the lower end of the sliding pressure plate 11. A straightening plate 5 is slidably connected to the upper end of the base plate 1. A clamping and fixing structure is provided on the straightening plate 5. The clamping and fixing structure includes a pair of clamping blocks 6 that move in opposite directions.

[0023] In use, the door frame is placed on the straightening plate 5, and the clamping and fixing structure is controlled to work. The clamping blocks 6 move towards each other, and the door frame is fixed on the straightening plate 5 by the clamping blocks 6. This can effectively prevent the door frame from shifting during the straightening process, which would cause deviation in the straightening of the door frame and affect the straightening effect. According to the position of the door frame to be straightened, the position adjustment structure is controlled to work. The sliding plate 11 slides along the inner wall of the sliding support plate 3, thereby adjusting the position of the straightening pressure block 9 at the lower end of the sliding plate 11. When the door frame is straightened, the pressing structure is controlled to work. The sliding support plate 3 presses down along the inner wall of the support frame 2, thereby driving the straightening pressure block 9 to move down, and the straightening pressure block 9 is used to press down and straighten the door frame.

[0024] The pressing structure includes a hydraulic cylinder 4 connected to the support frame 2, and the output end of the hydraulic cylinder 4 is connected to the sliding support plate 3.

[0025] like Figure 1 and 2 As shown, the output end of the hydraulic cylinder 4 drives the sliding plate 3 to slide, and the hydraulic cylinder 4 provides a downward driving force for the sliding plate 3.

[0026] The position adjustment structure also includes a screw 12 rotatably connected to the sliding plate 3, a slider 13 fixedly connected to the upper end of the sliding pressure plate 11, and a screw cylinder 14 threadedly connected to the screw 12 fixedly connected to the inner wall of the slider 13.

[0027] like Figure 2 and 3 As shown, a handle 15 is provided at one end of the screw 12. The screw 12 is driven to rotate by the handle 15. During the rotation, the screw 12 is threadedly connected to the screw cylinder 14 fixedly connected to the inner wall of the slider 13, thereby driving the sliding pressure plate 11 at the lower end of the slider 13 to slide. A support column 10 is fixedly connected to the lower end of the sliding pressure plate 11. A straightening pressure block 9 is provided on the support column 10, thereby adjusting the position of the straightening pressure block 9 according to the straightening position of the door frame.

[0028] The clamping and fixing structure also includes a worm gear 17 rotatably connected to the straightening plate 5. The worm gear 17 meshes with a worm wheel 20. The worm wheel 20 is coaxially fixedly connected to a central connecting rod 19. The two ends of the central connecting rod 19 are respectively rotatably connected to side connecting rods 18. One end of the side connecting rod 18 is provided with a sliding column 21 that is slidably connected to the inner wall of the straightening plate 5. The sliding column 21 is fixedly connected to the clamping block 6.

[0029] like Figure 4 As shown, a handle 16 is provided at one end of the worm gear 17. The handle 16 drives the worm gear 17 to rotate, the worm gear 17 drives the worm wheel 20 to rotate, the worm wheel 20 drives the central connecting rod 19 to rotate, and the two ends of the central connecting rod 19 drive the side connecting rods 18 to rotate during the rotation. The side connecting rods 18 drive the sliding column 21 to slide along the inner wall of the straightening plate 5. The sliding column 21 drives the clamping blocks 6 to move in opposite directions respectively. The clamping blocks 6 are used to clamp and fix the door frame, which can effectively prevent the door frame from shifting during the straightening process, thereby causing deviation in the straightening of the door frame and affecting the straightening effect of the door frame. A pull handle 7 is provided at one end of the straightening plate 5, which facilitates the movement of the door frame on the straightening plate 5.

[0030] The middle end of the connecting rod 19 is coaxially and fixedly connected to the worm gear 20, and their support shafts are rotatably connected to the straightening plate 5.

[0031] like Figure 4 As shown, when the worm gear 17 drives the connecting rod 19 to rotate, since the support shaft of the connecting rod 19 is at the middle end, it ensures that both ends of the connecting rod 19 rotate simultaneously and at the same angle.

[0032] The straightening plate 5 is provided with support slide plates 8 at both ends, which are slidably connected to the inner wall of the base plate 1.

[0033] like Figure 1 and 4 As shown, the support slide 8 supports and limits the movement of the straightening plate 5, making it easier to adjust the relative position of the door frame on the straightening plate 5 and the straightening pressure block 9. With the horizontal movement of the straightening pressure block 9, it is easy to fully straighten the door frame on the straightening plate 5.

[0034] The working process of this utility model is as follows: When using this utility model, the door frame is placed on the straightening plate 5. The handle 16 drives the worm gear 17 to rotate, the worm gear 17 drives the worm wheel 20 to rotate, and the worm wheel 20 drives the central connecting rod 19 to rotate. During the rotation of the central connecting rod 19, both ends drive the side connecting rods 18 to rotate. The side connecting rods 18 drive the sliding column 21 to slide along the inner wall of the straightening plate 5. The sliding column 21 drives the clamping blocks 6 to move in opposite directions. The clamping blocks 6 are used to clamp and fix the door frame, which can effectively prevent the door frame from shifting during the straightening process, thereby causing deviation in the straightening of the door frame and affecting the straightening effect of the door frame.

[0035] According to the position of the door frame to be straightened, the screw 12 is driven to rotate by the handle 15. During the rotation, the screw 12 is threadedly connected to the screw cylinder 14 fixedly connected to the inner wall of the slider 13, which in turn drives the sliding pressure plate 11 at the lower end of the slider 13 to slide, thereby adjusting the position of the straightening pressure block 9 according to the straightening position of the door.

[0036] When the door frame is straightened, the output end of the hydraulic cylinder 4 drives the sliding plate 3 to slide. The hydraulic cylinder 4 provides a downward driving force for the sliding plate 3, which in turn drives the straightening block 9 to move down. The straightening block 9 is used to press down and straighten the door frame.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An automatic straightening device for civil defense door frames, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is provided with a support frame (2), the support frame (2) is provided with a pressing structure, the pressing structure is driven to be connected to a sliding support plate (3) which is slidably connected to the support frame (2), the sliding support plate (3) is provided with a position adjustment structure, the position adjustment structure includes a sliding pressure plate (11) which is slidably connected to the inner wall of the sliding support plate (3), the lower end of the sliding pressure plate (11) is provided with a straightening pressure block (9), the upper end of the base plate (1) is slidably connected with a straightening plate (5), the straightening plate (5) is provided with a clamping and fixing structure, the clamping and fixing structure includes a pair of clamping blocks (6) that move in opposite directions.

2. The automatic straightening device for civil defense door frames according to claim 1, characterized in that: The pressing structure includes a hydraulic cylinder (4) connected to the support frame (2), and the output end of the hydraulic cylinder (4) is connected to the sliding plate (3).

3. The automatic straightening device for civil defense door frames according to claim 1, characterized in that: The position adjustment structure also includes a screw (12) rotatably connected to the sliding plate (3), a slider (13) fixedly connected to the upper end of the sliding plate (11), and a screw cylinder (14) threadedly connected to the screw (12) fixedly connected to the inner wall of the slider (13).

4. The automatic straightening device for civil defense door frames according to claim 1, characterized in that: The clamping and fixing structure also includes a worm gear (17) rotatably connected to the straightening plate (5). The worm gear (17) meshes with a worm wheel (20). The worm wheel (20) is coaxially fixedly connected to a central connecting rod (19). The two ends of the central connecting rod (19) are respectively rotatably connected to side connecting rods (18). One end of the side connecting rod (18) is provided with a sliding column (21) that is slidably connected to the inner wall of the straightening plate (5). The sliding column (21) is fixedly connected to the clamping block (6).

5. The automatic straightening device for civil defense door frames according to claim 4, characterized in that: The middle end of the connecting rod (19) and the worm gear (20) are coaxially fixedly connected, and their support shafts and the straightening plate (5) are rotatably connected.

6. The automatic straightening device for civil defense door frames according to claim 1, characterized in that: The straightening plate (5) is provided with support slide plates (8) at both ends, which are slidably connected to the inner wall of the base plate (1).

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