Protection device for preventing tunnel surrounding rock monitoring points from being damaged

Abstract

The utility model belongs to the technical field of surrounding rock monitoring point protection, and particularly relates to a protection device for preventing tunnel surrounding rock monitoring points from being damaged, which comprises a mounting plate, a placing hole is formed in the top of the mounting plate, a protection box is slidably connected to the surface of the mounting plate, and a separation mechanism is arranged on the surface of the protection box; by arranging a separating mechanism, a clamping block and an opening of a clamping groove are staggered, so that the position of the protection box is preliminarily fixed, a positioning button is pushed to enter an inner cavity of a positioning groove under the counter-acting force of a spring, secondary fixing of the protection box is completed, and therefore the stability of the protection box after fixing is guaranteed; and after the clamping block is in contact with the inner wall of the other side of the clamping groove, the clamping block can coincide with the opening of the clamping groove, so that rapid separation between the protection box and the mounting plate can be realized, the influence of the protection box on the working of the measuring point hook is avoided, and meanwhile, the dismounting time of the protection box is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of surrounding rock monitoring point protection, in particular to a protection device for preventing tunnel surrounding rock monitoring points from being damaged. Background Art

[0002] The tunnel construction process often causes the redistribution of surrounding rock stress and the release of ground stress. Therefore, after tunnel excavation, the tunnel vault will settle and radial convergence deformation will occur. Monitoring and measurement is one of the important links in the tunnel construction process. By analyzing the measurement data, it is possible to verify whether the initial support is safe and reasonable, and to effectively evaluate the stability and stress-strain state of the surrounding rock support. At the same time, the time for secondary lining construction can be reasonably determined. It relies on effective construction monitoring and measurement, and is used to correct and modify the design and guide construction. The auxiliary device commonly used in the monitoring and measurement process is the convergence measuring point hook. When protecting the detection point, a protective device is used to prevent the tunnel surrounding rock monitoring point from being damaged.

[0003] The protection device usually consists of a mounting plate and a protection box. The mounting plate is used to fix the position of the protection box, so that the measuring point hook passes through the mounting plate and enters the inner cavity of the protection box to protect the measuring point hook. The protection box and the mounting plate are usually fixed with bolts. When the protection box is removed, the bolts need to be removed, which increases the time to separate the protection box and the mounting plate and reduces work efficiency. Utility Model Content

[0004] In order to make up for the shortcomings of the existing technology, the protective box and the mounting plate are usually fixed with bolts. When the protective box is removed, the bolts need to be removed, which increases the time for separating the protective box from the mounting plate and reduces work efficiency. The utility model proposes a protective device to prevent the tunnel surrounding rock monitoring point from being damaged.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a protective device for preventing damage to a tunnel surrounding rock monitoring point, comprising a mounting plate, a placement hole being opened on the top of the mounting plate, a protective box being slidably connected to the surface of the mounting plate, and a separation mechanism being provided on the surface of the protective box;

[0006] The separation mechanism includes a mounting groove, which is provided on the surface of the mounting plate, and a mounting ring is fixedly installed on the bottom of the protective box, and the surface of the mounting ring is slidably connected to the inner cavity of the mounting groove. The inner wall of the mounting groove is provided with a card slot, and a card block is fixedly installed on the surface of the mounting ring, and the surface of the card block is used in conjunction with the inner cavity of the card slot. The inner wall of the mounting groove is provided with a fixed groove, and the inner cavity of the fixed groove is slidably connected with a positioning button, and the inner cavity of the fixed groove is provided with a spring, one end of the spring is fixedly connected to the inner wall of the fixed groove, and the other end of the spring is fixedly connected to the surface of the positioning button, the surface of the card block is provided with a positioning groove, and the inner cavity of the positioning groove is slidably connected to the surface of the positioning button.

[0007] Preferably, the surface of the protective box is adhered with reflective strips, and the number of the reflective strips on the surface is two.

[0008] Preferably, an elastic clip is fixedly installed on the surface of the mounting plate, a connecting box is slidably connected to the surface of the protective box, a connecting groove is opened on the surface of the connecting box, a fixing rod is fixedly installed on the inner wall of the connecting groove, and the surface of the fixing rod is connected to the inner side of the elastic clip.

[0009] Preferably, a brush is provided on the inner wall of the connection box, and the surface of the brush contacts the surface of the reflective strip.

[0010] Preferably, a guide groove is provided on the surface of the protection box, a guide block is fixedly mounted on the inner wall of the connection box, and the surface of the guide block is slidably connected to the inner cavity of the guide groove.

[0011] Preferably, a sealing gasket is fixedly mounted on the inner wall of the mounting groove, and the surface of the sealing gasket contacts the surface of the mounting ring.

[0012] Preferably, the inner wall of the connection box is threadedly connected to a positioning rod, and the surface of the positioning rod is threadedly connected to the inner wall of the brush.

[0013] The utility model is beneficial in that:

[0014] The utility model provides a separation mechanism, and the card block is staggered with the opening of the card slot, thereby achieving preliminary fixation of the position of the protective box, and pushing the positioning button into the inner cavity of the positioning slot under the reaction force of the spring to complete the secondary fixation of the protective box, thereby ensuring the stability of the protective box after fixation, and when the protection is canceled, the protective box is rotated in the opposite direction so that the card block contacts the inner wall on the other side of the card slot, and the card block will coincide with the opening of the card slot, thereby achieving rapid separation between the protective box and the mounting plate, thereby avoiding the influence of the protective box on the operation of the measuring point hook, and reducing the removal time of the protective box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a structural exploded view of the connection box and the protection box of the present invention;

[0018] Figure 3 This is a structural exploded view of the mounting plate and the protective box of the present invention;

[0019] Figure 4 This is a structural cross-sectional view of the mounting plate of the utility model;

[0020] Figure 5 This is a structural cross-sectional view of the brush and positioning rod of the utility model.

[0021] In the figure: 1. Mounting plate; 2. Placement hole; 3. Protective box; 4. Separation mechanism; 401. Mounting slot; 402. Mounting ring; 403. Card slot; 404. Card block; 405. Fixing slot; 406. Positioning button; 407. Positioning slot; 408. Spring; 5. Reflective strip; 6. Elastic clip; 7. Connecting box; 8. Connecting slot; 9. Fixing rod; 10. Brush; 11. Guide slot; 12. Guide block; 13. Sealing pad; 14. Positioning rod. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The following is combined with Figure 1-5 To further explain this application,

[0024] The embodiment of the present application discloses a protection device for preventing damage to a tunnel surrounding rock monitoring point. Figure 1 、 Figure 3 and Figure 4A protective device for preventing damage to a tunnel surrounding rock monitoring point includes a mounting plate 1, a placement hole 2 is opened on the top of the mounting plate 1, a protective box 3 is slidably connected to the surface of the mounting plate 1, and a separation mechanism 4 is provided on the surface of the protective box 3;

[0025] The separation mechanism 4 includes a mounting groove 401, which is provided on the surface of the mounting plate 1. A mounting ring 402 is fixedly installed on the bottom of the protective box 3. The surface of the mounting ring 402 is slidably connected to the inner cavity of the mounting groove 401. A clamping groove 403 is provided on the inner wall of the mounting groove 401. A clamping block 404 is fixedly installed on the surface of the mounting ring 402. The surface of the clamping block 404 is used in conjunction with the inner cavity of the clamping groove 403. A fixing groove 405 is provided on the inner wall of the mounting groove 401. A positioning button 406 is slidably connected to the inner cavity of the fixing groove 405. A spring 408 is provided in the inner cavity of the fixing groove 405. One end of the spring 408 is fixedly connected to the inner wall of the fixing groove 405. The other end of the spring 408 is fixedly connected to the surface of the positioning button 406. A positioning groove 407 is provided on the surface of the clamping block 404. The inner cavity of the positioning groove 407 is slidably connected to the surface of the positioning button 406.

[0026] Reference Figure 2 and Figure 3 The surface of the protective box 3 is attached with a reflective strip 5, and the number of the reflective strips 5 on the surface is two. By setting the reflective strips 5, the high visibility characteristics of the reflective strips 5 make it easier to identify in a dim environment such as a tunnel, making it convenient for the user to determine the position of each detection point;

[0027] Reference Figure 2 and Figure 3 , an elastic clip 6 is fixedly installed on the surface of the mounting plate 1, and a connecting box 7 is slidably connected to the surface of the protective box 3. A connecting groove 8 is opened on the surface of the connecting box 7, and a fixing rod 9 is fixedly installed on the inner wall of the connecting groove 8. The surface of the fixing rod 9 is connected to the inner side of the elastic clip 6. By setting the connecting box 7, when the reflective strip 5 is not in use, the sliding connection between the connecting box 7 and the protective box 3 can shield the reflective strip 5 to prevent the reflective strip 5 from being contaminated by external construction and ensure the stability of the reflective strip 5 when working. When the protective box 3 completely enters the inner cavity of the connecting box 7, the elastic clip 6 will enter the inner cavity of the connecting groove 8, and the fixing rod 9 will enter the inner cavity of the elastic clip 6, thereby completing the position fixation of the connecting box 7;

[0028] Reference Figure 2 and Figure 5 The inner wall of the connecting box 7 is provided with a brush 10, and the surface of the brush 10 contacts the surface of the reflective strip 5. By providing the brush 10, after the reflective strip 5 is used, when the connecting box 7 cancels the wrapping of the protective box 3, the connecting box 7 moves outward, and the brush 10 can clean the surface of the reflective strip 5, thereby cleaning the dust attached to the surface of the reflective strip 5 and improving the working effect of the reflective strip 5;

[0029] Reference Figure 2 A guide groove 11 is provided on the surface of the protective box 3, and a guide block 12 is fixedly installed on the inner wall of the connecting box 7. The surface of the guide block 12 is slidably connected to the inner cavity of the guide groove 11. Through the sliding connection between the guide groove 11 and the guide block 12, the movement of the connecting box 7 can be guided, and at the same time, the elastic clip 6 can accurately enter the inner cavity of the connecting groove 8;

[0030] Reference Figure 3 A sealing gasket 13 is fixedly installed on the inner wall of the mounting groove 401. The surface of the sealing gasket 13 contacts the surface of the mounting ring 402. By providing the sealing gasket 13, the sealing between the protective box 3 and the mounting plate 1 can be increased, thereby preventing external moisture from entering the inner cavity of the protective box 3 and preventing corrosion of the measuring point hook.

[0031] Reference Figure 1 and Figure 5 The inner wall of the connecting box 7 is threadedly connected with a positioning rod 14, and the surface of the positioning rod 14 is threadedly connected to the inner wall of the brush 10. By providing the positioning rod 14, when the positioning rod 14 is canceled from the threaded connection with the brush 10, the brush 10 can be removed, making it convenient to replace the brush 10;

[0032] Working principle: Pass the measuring point hook through the placement hole 2 of the mounting plate 1, fix the mounting plate 1 to the wall of the tunnel with bolts, and slide the mounting ring 402 of the mounting groove 401 to make the clamping block 404 enter the inner cavity of the clamping groove 403. Rotate the protective box 3. Through the rotation of the protective box 3, the clamping block 404 and the opening of the clamping groove 403 can be staggered, thereby achieving the initial fixation of the position of the protective box 3. When the clamping block 404 contacts the inner wall of the clamping groove 403, the opening of the fixing groove 405 and the positioning groove 407 will coincide with each other. Before the coincidence, the clamping block 404 will squeeze the positioning button 406 to make the positioning button 406 enter the inner cavity of the fixing groove 405. At the same time, The spring 408 is compressed, and after the overlap, the positioning button 406 is pushed into the inner cavity of the positioning groove 407 under the reaction force of the spring 408, completing the secondary fixation of the protective box 3, thereby ensuring the stability of the protective box 3 after fixation. The protective box 3 can wrap the measuring point hook, thereby realizing the protection of the tunnel surrounding rock monitoring point. When the protection is canceled, the protective box 3 is rotated in the opposite direction so that the block 404 contacts the inner wall on the other side of the slot 403. The block 404 will overlap with the opening of the slot 403, thereby realizing the rapid separation between the protective box 3 and the mounting plate 1, thereby avoiding the influence of the protective box 3 on the working of the measuring point hook, and reducing the removal time of the protective box 3.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A protective device for preventing damage to tunnel surrounding rock monitoring points, characterized by: It comprises a mounting plate (1), a placement hole (2) is provided on the top of the mounting plate (1), a protective box (3) is slidably connected to the surface of the mounting plate (1), and a separation mechanism (4) is provided on the surface of the protective box (3); The separation mechanism (4) includes a mounting groove (401), the mounting groove (401) is provided on the surface of the mounting plate (1), a mounting ring (402) is fixedly installed on the bottom of the protective box (3), the surface of the mounting ring (402) is slidably connected to the inner cavity of the mounting groove (401), the inner wall of the mounting groove (401) is provided with a clamping groove (403), the surface of the mounting ring (402) is fixedly installed with a clamping block (404), the surface of the clamping block (404) is used in conjunction with the inner cavity of the clamping groove (403), and the mounting groove ( 401) is provided with a fixing groove (405), the inner cavity of the fixing groove (405) is slidably connected to a positioning button (406), the inner cavity of the fixing groove (405) is provided with a spring (408), one end of the spring (408) is fixedly connected to the inner wall of the fixing groove (405), and the other end of the spring (408) is fixedly connected to the surface of the positioning button (406), and the surface of the block (404) is provided with a positioning groove (407), and the inner cavity of the positioning groove (407) is slidably connected to the surface of the positioning button (406).

2. The protection device for preventing damage to tunnel surrounding rock monitoring points according to claim 1, characterized in that: The surface of the protective box (3) is adhered with a reflective strip (5), and the number of the reflective strips (5) on the surface is two.

3. The protection device for preventing damage to tunnel surrounding rock monitoring points according to claim 2, characterized in that: An elastic clip (6) is fixedly mounted on the surface of the mounting plate (1), a connection box (7) is slidably connected to the surface of the protection box (3), a connection groove (8) is provided on the surface of the connection box (7), a fixing rod (9) is fixedly mounted on the inner wall of the connection groove (8), and the surface of the fixing rod (9) is connected to the inner side of the elastic clip (6).

4. The protection device for preventing damage to tunnel surrounding rock monitoring points according to claim 3, characterized in that: The inner wall of the connection box (7) is provided with a brush (10), and the surface of the brush (10) is in contact with the surface of the reflective strip (5).

5. The protection device for preventing damage to tunnel surrounding rock monitoring points according to claim 3 is characterized in that: A guide groove (11) is provided on the surface of the protection box (3), and a guide block (12) is fixedly installed on the inner wall of the connection box (7), and the surface of the guide block (12) is slidably connected to the inner cavity of the guide groove (11).

6. The protection device for preventing damage to tunnel surrounding rock monitoring points according to claim 1, characterized in that: A sealing gasket (13) is fixedly mounted on the inner wall of the mounting groove (401), and the surface of the sealing gasket (13) is in contact with the surface of the mounting ring (402).

7. The protection device for preventing damage to tunnel surrounding rock monitoring points according to claim 3, characterized in that: The inner wall of the connection box (7) is threadedly connected to a positioning rod (14), and the surface of the positioning rod (14) is threadedly connected to the inner wall of the brush (10).

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