A sealing structure and a multi-point displacement meter mounting and fixing device

Abstract

The utility model relates to multi -point displacement meter installation fixed equipment field especially a sealing structure and multi -point displacement meter installation fixed device, include, fixed assembly, fixed assembly includes fixed plate, gasket assembly, gasket assembly includes the sealing washer of setting in fixed plate one side, wherein, fixed assembly still includes the multiple bolts of arranging along the circumference of fixed plate, and the part screw thread connection of bolt between fixed plate and sealing washer has extrusion piece, through the design of sealing structure, still have good close sealing effect to the rough uneven rock wall, save rock wall polishing operation, adopt the double -sealed combination of sealing ring and sealing assembly, improve sealing effect, reduce the risk of leakage of slurry, extrude sealing ring by the extrusion effect of fixed plate to protection pipe, and when the equipment is buried upward, grouting pressure and equipment gravity and slurry gravity all have extrusion effect to sealing ring, promote its deformation, and then more closely close the inner wall of drilling, guarantee sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of multi-point displacement meter installation and fixing equipment, and in particular to a sealing structure and a multi-point displacement meter installation and fixing device. Background Technology

[0002] The installation and fixing of multi-point displacement gauges are achieved through grouting and anchoring. Depending on the usage environment, they can be buried in the following ways: downward, downward at an angle, horizontal, upward, or upward at an angle.

[0003] When multi-point displacement gauges are installed through grouting, they rely on the sealing rings to prevent grout leakage. When installed obliquely upwards or upwards, a large grouting pressure is required. The grouting method is to grout layer by layer from bottom to top. Under the influence of large grouting pressure and gravity, the pressure at the sealing point is large, which may lead to grout leakage. When installing sealing caps and gaskets on the rock wall, the rock wall has poor smoothness and is uneven, so the rock wall needs to be polished first. This involves a large amount of work and a harsh environment. In addition, due to the grouting pressure and gravity, the entire equipment is at risk of falling before the grout is completely solidified. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is: how to improve the grout leakage problem when multi-point displacement gauges are buried upwards or obliquely upwards for grouting.

[0005] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a sealing structure, including a fixing component, the fixing component including a fixing plate; a gasket assembly, the gasket assembly including a sealing gasket disposed on one side of the fixing plate; wherein, the fixing component further includes a plurality of bolts arranged circumferentially along the fixing plate, the bolts perpendicularly penetrating the fixing plate and the sealing gasket, and the portion of the bolt between the fixing plate and the sealing gasket is threadedly connected to an extrusion member.

[0006] In a preferred embodiment of the sealing structure of this utility model, the gasket assembly further includes sealing cotton, which is disposed on the side of the sealing gasket away from the extruder.

[0007] In a preferred embodiment of the sealing structure of this utility model: the sealing gasket is provided with a through hole for bolts to pass through, and a reinforcing member is fixed to the inner wall of the through hole, the reinforcing member being a metal ring.

[0008] In a preferred embodiment of the sealing structure of this utility model: the extrusion member includes an extrusion nut, which is threaded onto a bolt.

[0009] In a preferred embodiment of the sealing structure of this utility model: the extrusion member further includes a locking nut, which is threaded onto the bolt and located on the side of the extrusion nut closer to the fixing plate.

[0010] This utility model also proposes a multi-point displacement meter mounting and fixing device, including a sealing structure.

[0011] In a preferred embodiment of the multi-point displacement gauge mounting and fixing device of this utility model, a protective tube is further included. One end of the protective tube is open, and the other end of the protective tube is closed. The closed end of the protective tube is provided with a grouting pipe hole and an exhaust pipe hole. The fixing plate is slidably disposed on the closed end of the protective tube.

[0012] In a preferred embodiment of the multi-point displacement meter mounting and fixing device of this utility model: the outer wall of the closed end of the protective tube is coaxially provided with a circumferential notch, and the fixing plate is integrally provided with a pressing part on the side near the protective tube. The pressing part is a ring-shaped structure that is slidably sleeved at the circumferential notch, and the outer diameter of the pressing part is the same as the outer diameter of the protective tube.

[0013] In a preferred embodiment of the multi-point displacement meter mounting and fixing device of this utility model: a limiting block is provided on the outer wall of the circumferential notch, a sliding groove is provided on the inner wall of the extrusion part, and the limiting block is slidably disposed in the sliding groove.

[0014] In a preferred embodiment of the multi-point displacement gauge mounting and fixing device of this utility model, a sealing ring is further included, which is disposed between the bottom of the extrusion part and the circumferential notch.

[0015] The beneficial effects of this utility model are as follows: through the design of the sealing structure, it still has a good sealing effect on rough and uneven rock walls, eliminating the need for rock wall polishing and ensuring the sealing performance during grouting.

[0016] The dual sealing combination of sealing ring and sealing component improves the sealing effect and reduces the risk of grout leakage. At the same time, the sealing ring is squeezed by the compression of the protective pipe when the fixed plate fixes the position of the protective pipe. When the equipment is buried upward, the grouting pressure, the weight of the equipment and the weight of the grout all have a squeezing effect on the sealing ring, causing it to deform and thus fit more tightly to the inner wall of the borehole, ensuring the sealing effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein: Figure 1 A schematic diagram of the sealing structure is shown; Figure 2 A schematic diagram of the structure at the sealing gasket is shown; Figure 3 A schematic diagram of the multi-point displacement gauge mounting and fixing device is shown. Figure 4 A schematic diagram showing the relative positions of the protective tube and the fixing plate is provided. Figure 5 A schematic diagram showing the location of the sealing ring is provided. Figure 6 A schematic diagram of the structure at the protective tube is shown. Detailed Implementation

[0018] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0020] Example 1, referring to Figure 1 and Figure 2 This embodiment provides a sealing structure, including, Fixing component 1 includes fixing plate 11, which is specifically in the form of annular plate structure; Gasket assembly 2, which includes a sealing gasket 21 disposed on one side of the fixing plate 11; The fixing component 1 also includes a plurality of bolts 12 arranged circumferentially along the fixing plate 11. The bolts 12 can be evenly spaced apart, or different spacing distances can be designed according to the characteristics of the rock wall. The bolts 12 penetrate vertically through the fixing plate 11 and the sealing gasket 21. Specifically, the bolts 12 can move freely radially relative to the fixing plate 11 and the sealing gasket 21, and the part of the bolt 12 between the fixing plate 11 and the sealing gasket 21 is threadedly connected to a pressing member 13. By rotating the pressing member 13, the position of the pressing member 13 on the bolt 12 can be adjusted to press the sealing gasket 21 or release the pressing.

[0021] In use, the end of the bolt 12 away from the fixing plate 11 is fixed to the rock wall. Then, the extrusion piece 13 on each bolt 12 is rotated to squeeze the sealing gasket 21. The sealing gasket 21 corresponding to the extrusion piece 13 is tightly squeezed to the rock wall. Since the extrusion piece 13 makes point contact extrusion on the sealing gasket 21, combined with the deformation of the sealing gasket 21, the sealing gasket 21 can deform and fit the rock wall by the extrusion action. This provides a good sealing effect for uneven rock walls and eliminates the need for rock wall polishing. Of course, the sealing gasket 21 is made of a material with excellent elasticity, such as flexible graphite gasket, silicone rubber or nitrile rubber gasket.

[0022] Furthermore, refer to Figure 1 In order to address the rough and uneven characteristics of the rock wall and make the sealing component fit the rock wall better and improve the sealing performance, the gasket assembly 2 also includes sealing cotton 22, which is disposed on the side of the sealing gasket 21 away from the extruder 13.

[0023] By setting sealing cotton 22 on the side of the sealing gasket 21 that is in contact with the rock wall, the flexibility of the sealing cotton 22 is more conducive to conforming to the rough and uneven rock wall, so as to achieve a good seal.

[0024] Furthermore, refer to Figure 2 The sealing gasket 21 is provided with a through hole 211 for the bolt 12 to pass through, and a reinforcing member 212 is fixed to the inner wall of the through hole 211. The reinforcing member 212 is a metal ring.

[0025] Because the sealing gasket 21 is elastic, when the extruder 13 presses the sealing gasket 21 with strong force, it may cause deformation and expansion at the through hole 211, which may lead to poor sealing or even cause the extruder 13 to pass through and lose its extrusion function. By fixing a metal ring, such as an iron ring, steel ring, or aluminum alloy ring, to the inner wall of the through hole 211, a shaping function is achieved, avoiding the problem of poor sealing caused by the expansion of the through hole 211 and the problem of the extruder 13 passing through.

[0026] Furthermore, refer to Figure 1 The extrusion component 13 includes an extrusion nut 131, which is threaded onto the bolt 12. The extrusion component 13 also includes a locking nut 132, which is threaded onto the bolt 12 and is located on the side of the extrusion nut 131 that is closer to the fixing plate 11.

[0027] The extrusion component 13 adopts a combination of extrusion nut 131 and locking nut 132, which can be adjusted with a regular wrench. The adjustment is convenient. After adjustment, the locking nut 132 is used for secondary locking and fixation to improve the positional firmness and ensure the sealing effect.

[0028] Example 2, refer to Figures 3 to 6This embodiment provides a multi-point displacement gauge installation and fixing device, including a sealing structure and a protective tube 3. One end of the protective tube 3 is open and the other end is closed. The closed end of the protective tube 3 is provided with a grouting pipe hole 31 and an exhaust pipe hole 32 for the grouting pipe and the exhaust pipe to pass through. The fixing plate 11 is slidably disposed on the closed end of the protective tube 3. Specifically, the outer wall of the closed end of the protective tube 3 is coaxially provided with a ring notch 33. The fixing plate 11 is integrally provided with a pressing part 111 on the side close to the protective tube 3. The pressing part 111 is an annular structure that is slidably sleeved at the ring notch 33, and the outer diameter of the pressing part 111 is the same as the outer diameter of the protective tube 3.

[0029] In use, the protective tube 3 is fitted onto the outer end of the multi-point displacement gauge and then inserted into the pre-drilled hole in the rock wall. The sealing gasket 21 and sealing cotton 22 are fitted onto the extrusion part 111. Then, the extrusion part 111 of the fixing plate 11 is slidably fitted onto the circumferential notch 33 at the closed end of the protective tube 3. Then, the end of the bolt 12 away from the fixing plate 11 is fixed to the rock wall. As the bolt 12 extends into the rock wall, the nut part of the bolt 12 gradually squeezes the fixing plate 11. The fixing plate 11 squeezes the protective tube 3 through the extrusion part 111, pressing the protective tube 3 tightly. Then, each extrusion nut 131 is turned to make the sealing gasket 21 and sealing cotton 22 stick tightly to the rock wall. Finally, the locking nut 132 is tightened to carry out the grouting operation.

[0030] After being fixed to the rock wall by bolts 12, the nut part squeezes the fixing plate 11. The fixing plate 11 is pressed against the protective pipe 3 by the squeezing part 111, so as to realize the overall fixation of the equipment and prevent the risk of the equipment falling before the slurry solidifies.

[0031] Example 3, referring to Figures 3 to 6 In this embodiment, a limiting block 34 is provided on the outer wall of the circumferential notch 33, and a groove 112 is provided on the inner wall of the extrusion part 111, with the limiting block 34 slidably disposed in the groove 112.

[0032] After the entire device is fixed to the rock wall, the limiting block 34 and the sliding groove 112 are used to limit the rotation of the protective tube 3, so as to avoid the problem of rotation of the protective tube 3 caused by changes in the rock wall terrain, soft soil, etc., and thus avoid the problem of sensor performance degradation or even permanent damage caused by the rotation of the device.

[0033] Furthermore, refer to Figure 5 The multi-point displacement gauge mounting and fixing device also includes a sealing ring 4, which is disposed between the bottom of the extrusion part 111 and the circumferential notch 33.

[0034] Traditional sealing ring 4 is fixed to the outer wall of protective pipe 3 through an annular groove. However, under conditions of insufficient smoothness of the borehole inner wall, high grouting pressure, and gravity, grout leakage is likely to occur. This application utilizes the sliding design of fixing plate 11 and protective pipe 3. When the entire equipment is fixed to the rock wall, fixing plate 11 compresses protective pipe 3 through extrusion part 111, which in turn compresses sealing ring 4, causing sealing ring 4 to deform and fit tightly against the borehole inner wall. At the same time, grouting pressure and gravity also act on sealing ring 4, promoting deformation of sealing ring 4, improving its ability to withstand grouting pressure and the weight of grouting and equipment, and ensuring sealing performance.

[0035] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A sealing structure, characterized in that: include, Fixing component (1), the fixing component (1) includes a fixing plate (11); Gasket assembly (2), the gasket assembly (2) includes a sealing gasket (21) disposed on one side of the fixing plate (11); The fixing component (1) further includes a plurality of bolts (12) arranged circumferentially along the fixing plate (11). The bolts (12) penetrate vertically through the fixing plate (11) and the sealing gasket (21), and the portion of the bolts (12) between the fixing plate (11) and the sealing gasket (21) is threaded with an extrusion member (13).

2. The sealing structure according to claim 1, characterized in that: The gasket assembly (2) also includes a sealing cotton (22), which is disposed on the side of the sealing gasket (21) away from the extruder (13).

3. The sealing structure according to claim 2, characterized in that: The sealing gasket (21) is provided with a through hole (211) through which the bolt (12) passes. A reinforcing member (212) is fixed to the inner wall of the through hole (211), and the reinforcing member (212) is a metal ring.

4. The sealing structure according to claim 3, characterized in that: The extrusion member (13) includes an extrusion nut (131) which is threaded onto the bolt (12).

5. The sealing structure according to claim 4, characterized in that: The extrusion member (13) also includes a locking nut (132), which is threaded onto the bolt (12) and is located on the side of the extrusion nut (131) near the fixing plate (11).

6. A multi-point displacement gauge mounting and fixing device, characterized in that: Includes the sealing structure described in any one of claims 1 to 5.

7. The multi-point displacement gauge mounting and fixing device according to claim 6, characterized in that: It also includes a protective tube (3), one end of which is open and the other end of which is closed. The closed end of the protective tube (3) is provided with a grouting pipe hole (31) and an exhaust pipe hole (32). The fixing plate (11) is slidably disposed on the closed end of the protective tube (3).

8. The multi-point displacement gauge mounting and fixing device according to claim 7, characterized in that: The outer wall of the closed end of the protective tube (3) is coaxially provided with a ring-cut notch (33). The fixing plate (11) extends integrally with a pressing part (111) on the side close to the protective tube (3). The pressing part (111) is a ring structure that is slidably sleeved at the ring-cut notch (33), and the outer diameter of the pressing part (111) is the same as the outer diameter of the protective tube (3).

9. The multi-point displacement gauge mounting and fixing device according to claim 8, characterized in that: A limiting block (34) is provided on the outer wall of the circumferential notch (33), and a sliding groove (112) is provided on the inner wall of the extrusion part (111). The limiting block (34) is slidably disposed in the sliding groove (112).

10. The multi-point displacement gauge mounting and fixing device according to claim 9, characterized in that: It also includes a sealing ring (4) disposed between the bottom of the extrusion portion (111) and the circumferential notch (33).

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