Auxiliary positioning device for tunnel steel arch connecting plate

Abstract

The utility model relates to the technical field of tunnel steel arches, in particular to an auxiliary positioning device for a tunnel steel arch connecting plate. The device comprises a base plate arranged on I-shaped steel, and the base plate is provided with a positioning device used for positioning a connecting plate and a clamping device used for clamping the I-shaped steel. The positioning device comprises a positioning plate connected to the base plate in a sliding mode, a clamping plate arranged opposite to the positioning plate, positioning columns symmetrically connected to the clamping plate in a sliding mode and a tension spring arranged between the positioning plate and the clamping plate, a guide plate is fixedly connected to the positioning plate, and the clamping plate is connected to the guide plate in a sliding mode; according to the device, the positioning device can be correspondingly adjusted in the up-down direction and the left-right direction according to the model of the connecting plate, and the positioning accuracy and stability of the positioning device are guaranteed; according to the device, the connecting plate and the I-shaped steel are positioned in a clamping mode, and disassembly is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel steel arch frames, and particularly relates to an auxiliary positioning device for tunnel steel arch frame connecting plates. Background Technique

[0002] The rock stratum properties in tunnel construction are special and complex. Therefore, it is necessary to use steel arch frames to support the tunnel to ensure its safety. The steel arch frame is spliced by a certain number of I-shaped steel frames, and the connection between two I-shaped steel frames is fixed by a connecting plate and bolts. During on-site centralized processing, the positioning of the connecting plate is carried out by a positioner.

[0003] Chinese Patent CN202223170061.1 discloses "An Auxiliary Positioning Device for Welding Steel Arch Frame Connecting Plates", with the publication number CN219005083U. This device includes a substrate covering the top surface of the I-shaped steel, a positioning block is arranged on the substrate, a positioning bolt corresponding to the connecting plate is connected to the positioning block, and clamping components for clamping the I-shaped steel are arranged on both sides of the substrate. However, this device has some defects: this device is only applicable to I-shaped steels of the same size, with a small application range and unable to make corresponding adjustments according to the changes of the I-shaped steel frames. After the size of the I-shaped steel changes, this device cannot be used. Content of the Utility Model

[0004] In order to solve the above problems in the prior art, the utility model provides an auxiliary positioning device for tunnel steel arch frame connecting plates, which can make corresponding adjustments according to the sizes of the connecting plates and I-shaped steels, so that this device can be applicable to steel arch frames of different sizes.

[0005] To achieve the above object, the utility model provides the following technical solution: an auxiliary positioning device for tunnel steel arch frame connecting plates, including a substrate arranged on the I-shaped steel, a positioning device for positioning the connecting plate and a clamping device for clamping the I-shaped steel are arranged on the substrate; the positioning device includes a positioning plate slidably connected to the substrate, a clamping plate oppositely arranged to the positioning plate, positioning columns symmetrically slidably connected to the clamping plate, a tension spring arranged between the positioning plate and the clamping plate, a guiding plate fixedly connected to the positioning plate, and the clamping plate is slidably connected to the guiding plate.

[0006] With the above structural design, the positioning columns can be moved according to the distance between the mounting holes on the connecting plate, so that the positioning device can be adapted to the model of the connecting plate.

[0007] Preferably, the positioning column is fixedly connected to a slider, the slider is slidably connected to a long chute matching with it, the long chute is opened on the clamping plate, a bidirectional lead screw is threaded through the slider, the bidirectional lead screw slider is rotatably connected to the wall of the long chute, and a hand wheel is fixedly connected to the end of the bidirectional lead screw.

[0008] With the above structural design, the positioning posts can be symmetrically moved to ensure the accuracy of the positioning posts corresponding to the connecting plates in the left - right direction.

[0009] Preferably, a sliding plate is fixedly connected to the positioning plate. The sliding plate is slidably connected to a vertical plate that matches it. Both ends of the sliding plate are semi - cylindrical. The vertical plate is fixedly connected to the front end of the substrate. A positioning bolt is passed through the vertical plate, and the end of the positioning bolt abuts against the sliding plate.

[0010] With the above structural design, the height of the positioning device can be adjusted according to the model of the connecting plate to ensure the accuracy of the positioning posts corresponding to the connecting plates in the up - down direction.

[0011] Preferably, the clamping device includes a transverse chute opened on the substrate, clamping plates symmetrically and slidably connected to the transverse chute, a second bidirectional screw rod passing through the clamping plates by threads. The second bidirectional screw rod is rotatably connected to the transverse chute. The second bidirectional screw rod horizontally penetrates the substrate, and a rotating disk is fixedly connected to the end of the second bidirectional screw rod.

[0012] With the above structural design, the I - shaped steel can be stably clamped.

[0013] Preferably, the clamping plate is triangular, and an anti - slip rubber is fixedly connected to the inner side wall of the clamping plate.

[0014] With the above structural design, it can prevent the clamping plate from bending, increase the friction between the clamping plate and the I - shaped steel, and prevent the device from moving under the influence of external forces.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1) The device can make corresponding adjustments to the positioning device in the up - down direction and the left - right direction according to the model of the connecting plate, ensuring the accuracy and stability of the positioning of the positioning device.

[0017] 2) The device uses a clamping method to position the connecting plate and the I - shaped steel, and the disassembly is convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the present utility model when viewed from below;

[0020] Figure 3 is a schematic structural diagram of the clamping device of the present utility model; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Please refer to Figure 1 andFigure 2 , Figure 3 , the present utility model provides a technical solution: an auxiliary positioning device for a connecting plate of a tunnel steel arch, including a substrate 1 provided on an I-beam, a positioning device for positioning the connecting plate and a clamping device for clamping the I-beam provided on the substrate 1; the positioning device includes a positioning plate 21 slidably connected to the substrate 1, a clamping plate 22 disposed opposite to the positioning plate 21, positioning columns 23 symmetrically slidably connected to the clamping plate 22, and a tension spring 24 disposed between the positioning plate 21 and the clamping plate 22. A guide plate 25 is fixedly connected to the positioning plate 21, and the clamping plate 22 is slidably connected to the guide plate 25.

[0022] The end of the positioning column 23 is cut into a smooth hemispherical shape.

[0023] In order to ensure that the clamping plate 22 and the positioning plate 21 can clamp the connecting plate, a plurality of tension springs 24 are provided and disposed at both ends of the clamping plate 22.

[0024] Four groups of guide plates 25 are provided and disposed at the four corners of the positioning plate 21.

[0025] The positioning column 23 is fixedly connected to a slider 29, the slider 29 is slidably connected to a long chute 28 matching therewith, the long chute 28 is opened on the clamping plate 22, a bidirectional lead screw 27 is threaded through the slider 29, the bidirectional lead screw 27 is rotatably connected to the wall of the long chute 28, and a hand wheel 26 is fixedly connected to the end of the bidirectional lead screw 27.

[0026] In this embodiment, in order to ensure that the clamping plate 22 and the positioning plate 21 can clamp the connecting plate, the length of the slider 29 should exceed the thickness of the clamping plate 22, and the length of the slider 29 exceeds the length of the tension spring 24 when not deformed.

[0027] A sliding plate 31 is fixedly connected to the positioning plate 21, the sliding plate 31 is slidably connected to a vertical plate 32 matching therewith, both ends of the sliding plate 31 are semi-cylindrical, the vertical plate 32 is fixedly connected to the front end of the substrate 1, and a positioning bolt 33 is passed through the vertical plate 32, and the end of the positioning bolt 33 abuts against the sliding plate 31.

[0028] The clamping device includes a transverse chute 41 opened on the substrate 1, clamping plates 42 symmetrically slidably connected to the transverse chute 41, and a second bidirectional lead screw 43 threaded through the clamping plates 42. The second bidirectional lead screw 43 is rotatably connected to the transverse chute 41, the second bidirectional lead screw 43 horizontally penetrates the substrate 1, and a rotating disk 44 is fixedly connected to the end of the second bidirectional lead screw 43.

[0029] The clamping plate 42 is triangular, and an anti-slip rubber is fixedly connected to the inner side wall of the clamping plate 42.

[0030] When the device is in use, the staff member selects the appropriate types of the I-beam 9 and the connecting plate 7. First, the staff member pulls the clamping plate 22 to place the connecting plate 7 between the clamping plate 22 and the positioning plate 21. The mounting hole 8 on the connecting plate 7 and the positioning post 23 are approximately at the same horizontal height. Then, the handwheel 26 is rotated. When the positioning post 23 moves to the position of the mounting hole 8, under the action of the tension spring 24, the positioning post 23 enters the mounting hole 8. Then, the height of the mounting hole on the connecting plate is adjusted in the height direction, that is, the positioning plate 21 is moved. When the positioning plate 21 is moved to the appropriate height, the staff member rotates the positioning bolt 33 to fix the positioning plate 21. Then, the staff member places the device on the I-beam 9. The connecting plate 7 is in contact with the front end of the I-beam 9. At this time, the staff member rotates the rotating disc 44, and the clamping plates 42 move relatively to clamp the I-beam, completing the positioning. Finally, the staff member welds the connecting plate 7 and the I-beam 98.

[0031] After the welding is completed, pull the clamping plate 22 to remove the device. For the same types of the I-beam 9 and the connecting plate 7, the device does not need to be adjusted again. When using it for the second time, pull the clamping plate 22 to install the connecting plate on the positioning post 23, release the clamping plate 22, and then the staff member places the device on the I-beam 9. The connecting plate 7 is in contact with the front end of the I-beam 9. At this time, the staff member rotates the rotating disc 44, and the clamping plates 42 move relatively to clamp the I-beam, completing the positioning.

[0032] When changing the types of the I-beam 9 and the connecting plate 7, make corresponding adjustments to the positioning device.

[0033] The structures, proportions, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have any technical substance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present invention can implement.

[0034] The present utility model has been described with reference to the preferred embodiments, but the protection scope of the present utility model is not limited thereto. All technical solutions falling within the scope of the claims are within the protection scope of the present utility model. Without departing from the scope of the present utility model, various improvements can be made thereto and components therein can be replaced with equivalents. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any manner.

Claims

1. An auxiliary positioning device for a tunnel steel arch connecting plate, comprising a base plate (1) arranged on an I-beam, characterized in that: The base plate (1) is provided with a positioning device for positioning the connecting plate and a clamping device for clamping the I-beam; the positioning device comprises a positioning plate (21) slidably connected to the base plate (1), a clamping plate (22) arranged opposite to the positioning plate (21), a positioning column (23) symmetrically slidably connected to the clamping plate (22), and a tension spring (24) arranged between the positioning plate (21) and the clamping plate (22); a guide plate (25) is fixedly connected to the positioning plate (21), and the clamping plate (22) is slidably connected to the guide plate (25).

2. The auxiliary positioning device for a tunnel steel arch connecting plate according to claim 1, characterized in that: The positioning column (23) is fixedly connected to the slider (29), and the slider (29) is slidably connected to a matching long slide groove (28), and the long slide groove (28) is opened on the clamping plate (22). A bidirectional screw rod (27) is threaded through the slider (29), and the bidirectional screw rod (27) is rotatably connected to the groove wall of the long slide groove (28), and the end of the bidirectional screw rod (27) is fixedly connected to the hand wheel (26).

3. The auxiliary positioning device for a tunnel steel arch connecting plate according to claim 1, characterized in that: The positioning plate (21) is fixedly connected to a sliding plate (31), and the sliding plate (31) is slidably connected to a vertical plate (32) matched therewith, both ends of the sliding plate (31) are semi-cylindrical, and the vertical plate (32) is fixedly connected to the front end of the base plate (1), and a positioning bolt (33) is passed through the vertical plate (32), and the end of the positioning bolt (33) contacts the sliding plate (31).

4. The auxiliary positioning device for a tunnel steel arch connecting plate according to claim 1, characterized in that: The clamping device comprises a transverse sliding groove (41) provided on the base plate (1), a clamping plate (42) symmetrically slidably connected to the transverse sliding groove (41), a second bidirectional screw rod (43) threadedly penetrating the clamping plate (42), the second bidirectional screw rod (43) being rotatably connected to the transverse sliding groove (41), the second bidirectional screw rod (43) penetrating the base plate (1) transversely, and the end of the second bidirectional screw rod (43) being fixedly connected to a rotating disk (44).

5. The auxiliary positioning device for a tunnel steel arch connecting plate according to claim 4, characterized in that: The clamping plate (42) is triangular in shape, and the inner side wall of the clamping plate (42) is fixedly connected with anti-slip rubber.

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