A device for plugging a shaft spillway

Abstract

The utility model discloses a device for plugging vertical shaft slag hole, include: guide cylinder, its outside slide is equipped with telescopic cylinder, telescopic cylinder outside slide is equipped with outer tube, annular box is fixedly connected in guide cylinder and outer tube top, the top of annular box is fixedly connected with annular sealing plate. The utility model discloses be provided with a series of structures, and the total length formed by guide cylinder and telescopic cylinder is conveniently and flexibly telescopic adjustment, realizes the effect of flexible adjustment in the slag hole guiding support length, through telescopic length adjustable mode, not only has improved the applicability, can also reduce the length through contraction when transporting, conveniently better carries out the transport work, improves the use flexibility and convenience, and can utilize the cover plate to seal the upper portion and lock the cover plate when not using, through the mode of locking, reduce the risk that the cover plate is opened automatically because of factors such as vibration when external blasting construction, improve the stability when plugging.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology for vertical shaft construction, specifically a device for plugging slag leakage holes in vertical shafts. Background Technology

[0002] Currently, during the excavation of vertical shafts, when using the slag leakage hole method for slag removal, a slag leakage hole is drilled inside the shaft using rotary drilling. The soil and gravel excavated from the shaft are then discharged through the slag leakage hole. This method is mainly used to drain the slag from the shaft excavation process into the tunnel, where it is then discharged through the main tunnel. Sometimes, blasting operations are also required during construction. To prevent the slag from being blocked by vibrations from the slag outside the blasting process, a steel cylinder needs to be inserted into the slag leakage hole for support. Furthermore, to avoid safety hazards when not in use, the top of the steel cylinder needs to be covered and sealed when no one is present to reduce safety risks. The steel cylinder is usually 2m-2.5m in diameter.

[0003] In response, a search revealed that announcement number CN208220780U discloses a device for sealing a slag leakage hole, comprising a hollow guide tube adapted to the slag leakage hole. A fixing ring is provided around the upper outer wall of the guide tube, and an annular groove is provided on the fixing ring. A sliding element matching the groove is provided within the groove. One end of the sliding element is located within the groove, and the other end is connected to a cover plate for covering the guide tube. The cover plate is hinged to the sliding element. This device is simple in structure, convenient to use, safe and reliable, and effectively blocks the slag leakage hole.

[0004] The aforementioned technology discloses a device for sealing slag leakage holes. This device uses a guide tube inserted into the leakage hole for safety support and to guide the slag downwards. A cover plate on top of the guide tube is used for sealing when not in use. However, it still has the following shortcomings: 1. Because the leakage holes are usually deep, the fixed, integrated guide tube is quite long and lacks an extension / adjustment mechanism. The long guide tube undoubtedly causes significant inconvenience in transportation and is not very convenient to use; 2. Simply using a cover plate to cover the top lacks a fixing mechanism. During external blasting operations, the cover plate is prone to automatically opening due to vibrations, resulting in poor stability during sealing. Therefore, this application proposes a device for sealing slag leakage holes in vertical shafts to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a device for plugging slag leakage holes in vertical shafts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for plugging slag leakage holes in vertical shafts, comprising:

[0007] A guide tube is provided with a telescopic tube slidably sleeved on its outer side, and an outer tube is slidably sleeved on the outer side of the telescopic tube; the outer tube is used to insert into the slag leakage hole of the vertical shaft, and the guide tube is used to guide the slag to the hole below the slag leakage hole when it is to be poured in;

[0008] An annular box is fixedly connected to the top of the guide tube and the outer tube, and an annular sealing plate is fixedly connected to the top of the annular box;

[0009] The four-point linkage threaded lifting and lowering drive assembly is installed inside the annular box. The telescopic cylinder is threaded onto the four-point linkage threaded lifting and lowering drive assembly. The four-point linkage threaded lifting and lowering drive assembly is used to drive the telescopic cylinder to move downward or move upward. The downward movement of the telescopic cylinder is used to adjust its downward extension length, thereby achieving the effect of telescopic adjustment of the guide support length. The telescopic adjustable method allows the length to be reduced by contraction during transportation.

[0010] A rotating cover sealing assembly is installed on top of an annular sealing plate; the rotating cover sealing assembly is used to seal or unseal the inside of the annular sealing plate, thereby achieving the blocking or unsealing of the slag leakage hole.

[0011] Preferably, the four-point linkage threaded lifting drive assembly includes an internal gear ring, four gears, four screws, a connecting shaft, and a rocker plate. The internal gear ring is rotatably mounted on the bottom inner wall of the annular box. The four gears mesh in an annular pattern at equal intervals on the inner side of the internal gear ring. The four screws are rotatably embedded in the bottom of the annular box in an annular pattern at equal intervals. The top ends of the four screws are fixedly connected to the bottom of the corresponding gears. The telescopic cylinder is threaded onto the four screws. The connecting shaft is fixedly connected to the top of the gear on the left side. The top end of the connecting shaft extends above the annular sealing plate and is fixedly connected to the bottom of the rocker plate. The annular sealing plate is rotatably mounted on the connecting shaft.

[0012] Preferably, the rotating cover sealing assembly includes two supports, a rotating sleeve, a cover plate, a rubber pad, two U-shaped handles, a fixing seat, and a knob-type bolt. The two supports are fixedly connected to the top left side of the annular sealing plate, and a stainless steel support shaft is welded and fixed between the two supports. The rotating sleeve is rotatably fitted onto the stainless steel support shaft. The cover plate is welded and fixed to the right side of the rotating sleeve. The two U-shaped handles are respectively fixedly connected to the top two sides of the cover plate. A threaded groove is opened on the right side of the cover plate, and the knob-type bolt is threaded into the threaded groove. The fixing seat is welded and fixed to the top right side of the annular sealing plate, and the fixing seat is threaded onto the knob-type bolt. The rubber pad is adhered and fixed to the bottom of the cover plate and is used to cover the inner top of the annular sealing plate.

[0013] Preferably, the inner side of the annular sealing plate is vertically connected to the inner side of the annular box, and the annular box is vertically connected to the inner side of the guide tube.

[0014] Preferably, a limiting groove is formed on the left inner wall of the outer cylinder, and a limiting block that is slidably connected to the limiting groove is fixedly connected to the top left side of the telescopic cylinder.

[0015] Preferably, the top of the telescopic cylinder has four equally spaced threaded grooves in an annular shape, and the threaded grooves are threadedly connected to the corresponding screws.

[0016] Preferably, reinforcing ribs are welded to the inner side of the guide tube and the bottom of the inner side of the telescopic tube. There are two reinforcing ribs inside the guide tube, and the two adjacent reinforcing ribs form a staggered cross shape.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Through the combination of the set guide tube, telescopic tube, outer tube, annular box, annular sealing plate and four-point linkage threaded lifting drive assembly, the total length formed by the guide tube and telescopic tube can be flexibly adjusted to achieve the effect of flexibly adjusting the guiding support length in the slag leakage hole. The adjustable telescopic length not only improves the applicability, but also allows the length to be reduced by shrinking during transportation. Compared with the existing guide tube with a longer overall length, it is more convenient to carry out transportation work and improves the flexibility and convenience of use.

[0019] 2. By using the set ring support plate and rotating cover sealing component, the upper part can be sealed and locked when not in use. By locking, the risk of the cover plate automatically opening due to vibration and other factors during external blasting is reduced, and the stability of sealing is improved.

[0020] 3. By using three reinforcing ribs in another manner, the inner side of the guide tube and telescopic tube is strengthened and supported, reducing the risk of deformation and further improving the safety of use.

[0021] This utility model incorporates a series of structures that allow for flexible adjustment of the total length formed by the guide cylinder and the telescopic cylinder. This enables flexible adjustment of the guide support length within the slag leakage hole. The adjustable telescopic length not only improves applicability but also facilitates transportation by reducing the length during transport, enhancing flexibility and convenience. Furthermore, when not in use, the upper part can be sealed and locked with a cover plate. This locking mechanism reduces the risk of the cover plate automatically opening due to vibrations during external blasting operations, thus improving the stability of the sealing process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a device for plugging slag leakage holes in a vertical shaft, as proposed in Embodiment 1 of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the guide cylinder, telescopic cylinder, and outer cylinder connecting component of a device for plugging slag leakage holes in a vertical shaft, as proposed in Embodiment 1 of this utility model.

[0024] Figure 3 This is a schematic diagram of the main cross-sectional structure of a device for plugging slag leakage holes in a vertical shaft, as proposed in Embodiment 1 of this utility model.

[0025] Figure 4 for Figure 3 A magnified structural diagram of part A in the diagram;

[0026] Figure 5 This is a front cross-sectional view of a device for plugging slag leakage holes in a vertical shaft, as proposed in Embodiment 2 of this utility model.

[0027] In the diagram: 100, reinforcing rib; 1, guide tube; 101, telescopic tube; 102, outer tube; 2, annular box; 201, annular sealing plate; 202, internal gear ring; 203, gear; 204, screw; 205, rocker plate; 3, cover plate; 301, rubber pad; 302, support; 303, rotating sleeve; 304, fixed seat; 305, knob bolt; 306, U-shaped handle. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] like Figures 1 to 4 As shown in the figure, this embodiment proposes a device for plugging slag leakage holes in vertical shafts, comprising:

[0031] The guide cylinder 1 has a telescopic cylinder 101 slidably sleeved on its outer side, and an outer cylinder 102 slidably sleeved on the outer side of the telescopic cylinder 101; the outer cylinder 102 is used to insert into the slag leakage hole of the vertical shaft, and the guide cylinder 1 is used to guide the slag to the hole below the slag leakage hole when it is to be poured in.

[0032] The annular box 2 is fixedly connected to the top of the guide tube 1 and the outer tube 102, and the top of the annular box 2 is fixedly connected to the annular sealing plate 201;

[0033] The four-point linkage threaded lifting and lowering drive assembly is installed inside the annular box 2. The telescopic cylinder 101 is threaded onto the four-point linkage threaded lifting and lowering drive assembly. The four-point linkage threaded lifting and lowering drive assembly is used to drive the telescopic cylinder 101 to move downward or move upward. The downward movement of the telescopic cylinder 101 is used to adjust its downward extension length, thereby achieving the effect of telescopic adjustment of the guide support length. The telescopic adjustable method allows the length to be reduced by shrinking during transportation.

[0034] A rotating cover and sealing assembly is installed on the top of the annular sealing plate 201; the rotating cover and sealing assembly is used to seal or unseal the inner side of the annular sealing plate 201, thereby achieving the blocking or unsealing of the slag leakage hole;

[0035] In this embodiment, the inner side of the annular sealing plate 201 is vertically connected to the inner side of the annular box 2, and the annular box 2 is vertically connected to the inner side of the guide tube 1; a limiting groove is provided on the left inner wall of the outer tube 102, and a limiting block that is slidably connected to the left top of the telescopic tube 101 is fixedly connected to the limiting groove, which has the effect of limiting and preventing the telescopic tube 101 from falling off.

[0036] Furthermore, such as Figure 2 and 3 As shown, the four-point linkage screw lifting drive assembly includes an internal gear ring 202, four gears 203, four screws 204, a connecting shaft, and a rocker plate 205. The internal gear ring 202 is rotatably mounted on the bottom inner wall of the annular box 2. The four gears 203 are meshed in annularly at equal intervals on the inner side of the internal gear ring 202. The four screws 204 are rotatably embedded in the bottom of the annular box 2 in annularly at equal intervals. The top ends of the four screws 204 are fixedly connected to the bottom of the corresponding gears 203. The telescopic cylinder 101 is threaded onto the four screws 204. The connecting shaft is fixedly connected to the top of the gear 203 on the left side. The top end of the connecting shaft extends to the top of the annular sealing plate 201 and is fixedly connected to the bottom of the rocker plate 205. The annular sealing plate 201 is rotatably mounted on the connecting shaft.

[0037] In this embodiment, the top of the telescopic cylinder 101 has four equally spaced threaded grooves in an annular shape. The threaded grooves are threadedly connected to the corresponding screws 204. The threaded connection between the screws 204 and the threaded grooves facilitates the upward and downward displacement of the telescopic cylinder 101 when the screws 204 rotate. The bottom of the annular box 2 has four circular through holes in an annular shape. A first bearing is fixedly fitted inside the circular through holes. The inner side of the inner ring of the first bearing is fixedly connected to the outer side of the screws 204, which enables the screws 204 to be rotated. The top left side of the annular sealing plate 201 has a circular through hole. A second bearing is fixedly fitted inside the circular through hole. The inner ring of the second bearing is fixedly fitted to the outer side of the connecting shaft, which enables the connecting shaft to be rotated. A third bearing is fixedly installed on the inner wall of the bottom of the annular box 2. The inner ring of the third bearing is fixedly fitted to the outer side of the internal gear ring 202, which enables the internal gear ring 202 to be rotated.

[0038] In this embodiment, the internal gear ring 202, four gears 203, four screws 204, a connecting shaft, and a rocker plate 205 work together. Rotating the rocker plate 205 causes the left gear 203 to rotate via the connecting shaft. The left gear 203 drives the internal gear ring 202, which meshes with it, to rotate. The internal gear ring 202 drives the other three gears 203, which mesh with it, to rotate together. The four gears 203 rotate synchronously and drive the four screws 204 to rotate synchronously. The rotation of the four screws 204 drives the telescopic cylinder 101 to move downward or upward. The downward movement of the telescopic cylinder 101 adjusts its downward extension length, achieving flexible adjustment of the guide support length within the slag leakage hole. The adjustable telescopic method allows for a reduction in length during transportation by retracting the cylinder. Compared to the existing directly fixed, longer guide cylinder 1, this method facilitates better transportation and improves operational flexibility.

[0039] Furthermore, such as Figure 2 and 3 As shown, the rotating cover sealing assembly includes two supports 302, a rotating sleeve 303, a cover plate 3, a rubber pad 301, two U-shaped handles 306, a fixing seat 304, and a knob bolt 305. The two supports 302 are fixedly connected to the top left side of the annular sealing plate 201. A stainless steel support shaft is welded and fixed between the two supports 302. The rotating sleeve 303 is rotatably sleeved on the stainless steel support shaft. The cover plate 3 is welded and fixed to the right side of the rotating sleeve 303. The two U-shaped handles 306 are respectively fixedly connected to the top two sides of the cover plate 3. A threaded groove is opened on the right side of the cover plate 3. The knob bolt 305 is threaded into the threaded groove. The fixing seat 304 is welded and fixed to the top right side of the annular sealing plate 201. The fixing seat 304 is threaded onto the knob bolt 305. The rubber pad 301 is bonded and fixed to the bottom of the cover plate 3 and is used to cover the inner top of the annular sealing plate 201.

[0040] In this embodiment, the rotating sleeve 303 is fitted with two fourth bearings, and the inner ring of the fourth bearing is fixedly fitted with the outer side of the stainless steel support shaft, so as to achieve the effect of rotating the rotating sleeve 303; the fixed seat 304 is provided with threaded holes, and the fixed seat 304 is threadedly fitted with the knob bolt 305 through the threaded holes.

[0041] In this implementation scheme, two supports 302, a rotating sleeve 303, a cover plate 3, a rubber pad 301, two U-shaped handles 306, a fixed seat 304, and a knob bolt 305 are used in conjunction. The cover plate 3, together with the rubber pad 301, seals the inner side of the annular sealing plate 201, thereby blocking the slag leakage hole. The knob bolt 305 is screwed into the threaded groove to lock the cover plate 3. When it is necessary to unseal, the knob bolt 305 is rotated in the opposite direction to separate it from the threaded groove, thereby releasing the lock. Then, the U-shaped handle 306 on the right side can be pulled upward to rotate and open the cover plate 3, removing the obstruction and achieving the effect of unsealing the inner side of the annular sealing plate 201. After unsealing, slag can be poured into the inner side of the annular sealing plate 201 for guided discharge. After the cover plate 3 is opened and the obstruction is removed, the chuck plate 205 can be rotated.

[0042] It should be noted that the screw 204, cover plate 3, rotating sleeve 303, support 302, knob bolt 305 and fixed seat 304 are all made of stainless steel, while the guide cylinder 1, telescopic cylinder 101 and outer cylinder 102 are all made of steel. The advantages of stainless steel, such as high hardness and wear resistance, are utilized to ensure long-term connection and drive support stability.

[0043] This embodiment facilitates flexible adjustment of the total length formed by the guide tube and the telescopic tube, achieving the effect of flexibly adjusting the length of the guide support within the slag leakage hole. The adjustable telescopic length not only improves applicability but also allows for easier transportation by shrinking the length, enhancing flexibility and convenience. Furthermore, when not in use, the cover plate 3 can be used to seal the upper part and lock it in place. This locking method reduces the risk of the cover plate 3 automatically opening due to vibrations or other factors during external blasting operations, improving the stability of the sealing process.

[0044] The method of use in this embodiment is as follows: When using the device for plugging the slag leakage hole in a vertical shaft, the outer cylinder 102 is inserted into the slag leakage hole. To remove the obstruction at the top, rotate the knob bolt 305 in the opposite direction to separate it from the threaded groove, thus releasing the lock. Then, pull the U-shaped handle 306 on the right side upward to rotate and open the cover plate 3, releasing the blockage and removing the obstruction to the rocker disc 205. When adjusting the guide support length, rotate the rocker disc 205 in the forward direction to drive the gear 203 on the left side to rotate through the connecting shaft. The gear 203 on the left side drives the internal gear ring 202 meshing with it to rotate, and the internal gear ring 202 drives the gear 202 meshing with it to rotate. The other three gears 203 rotate as a whole, and the four gears 203 rotate synchronously, driving the four screws 204 to rotate synchronously. The rotation of the four screws 204 drives the telescopic cylinder 101 to slide downward on the outside of the guide cylinder 1 and the inside of the outer cylinder 102. The downward movement of the telescopic cylinder 101 is used to adjust its downward extension length. In conjunction with the guide cylinder 1, the effect of flexibly extending and adjusting the guiding and supporting length in the slag leakage hole is achieved. The applicability is improved by adjusting the extension and retraction length. The guide cylinder 1 and the telescopic cylinder 101 are used to support the slag leakage hole, and both are used to guide the slag into the hole below the slag leakage hole when it is poured in.

[0045] When the upper part needs to be sealed, rotate the closed cover plate 3, and then rotate the knob bolt 305 in the forward direction to screw it into the threaded groove to lock the cover plate 3. By locking, the risk of the cover plate 3 automatically opening due to vibration and other factors during external blasting is reduced, and the stability during sealing is improved. When the length needs to be shortened for transportation after use, rotate the rocker 205 in the reverse direction. Similarly, the movement direction of the rocker 205 is completely opposite to that of rotating the rocker 205 in the forward direction. At this time, the telescopic cylinder 101 moves upward and retracts between the outer cylinder 102 and the guide cylinder 1. The length can be reduced by retraction during transportation through the telescopic adjustable method. Compared with the existing guide cylinder 1 which is longer in length, it is more convenient to carry out transportation work and improves the flexibility and convenience of use.

[0046] Example 2

[0047] like Figure 5 As shown, this embodiment differs from Embodiment 1 in that: reinforcing ribs 100 are welded to the inner side of the guide cylinder 1 and the bottom of the inner side of the telescopic cylinder 101. There are two reinforcing ribs 100 located inside the guide cylinder 1, and the two adjacent reinforcing ribs 100 form a staggered cross shape.

[0048] This embodiment can strengthen the support of the inner side of the guide cylinder 1 and the telescopic cylinder 101, reduce the risk of deformation, and further improve the safety of use.

[0049] The method of use in this embodiment is as follows: The difference from Embodiment 1 is that, based on Embodiment 1, it also has the following functions: By using the three reinforcing ribs 100, the inner side of the guide cylinder 1 and the telescopic cylinder 101 is strengthened and supported, reducing the risk of deformation and further improving the safety of use.

[0050] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for plugging slag leakage holes in vertical shafts, comprising a guide tube (1), characterized in that: include: A guide tube (1) is slidably fitted with a telescopic tube (101) on its outer side, and an outer tube (102) is slidably fitted on the outer side of the telescopic tube (101); An annular box (2) is fixedly connected to the top of the guide tube (1) and the outer tube (102), and an annular sealing plate (201) is fixedly connected to the top of the annular box (2); The four-point linkage threaded lifting drive assembly is installed inside the annular box (2), and the telescopic cylinder (101) is threaded onto the four-point linkage threaded lifting drive assembly. A rotating cover sealing assembly is installed on top of an annular sealing plate (201).

2. The device for plugging slag leakage holes in vertical shafts according to claim 1, characterized in that: The four-point linkage threaded lifting drive assembly includes an internal gear ring (202), four gears (203), four screws (204), a connecting shaft, and a rocker plate (205). The internal gear ring (202) is rotatably mounted on the bottom inner wall of the annular box (2). The four gears (203) mesh in an annular pattern at equal intervals on the inner side of the internal gear ring (202). The four screws (204) are rotatably mounted in an annular pattern at equal intervals on the bottom of the annular box (2). The top ends of the four screws (204) are fixedly connected to the bottom of the corresponding gears (203). The telescopic cylinder (101) is threaded onto the four screws (204). The connecting shaft is fixedly connected to the top of the gear (203) on the left side. The top end of the connecting shaft extends above the annular sealing plate (201) and is fixedly connected to the bottom of the rocker plate (205). The annular sealing plate (201) is rotatably mounted on the connecting shaft.

3. The device for plugging slag leakage holes in vertical shafts according to claim 1, characterized in that: The rotating cover sealing assembly includes two supports (302), a rotating sleeve (303), a cover plate (3), a rubber pad (301), two U-shaped handles (306), a fixing seat (304), and a knob bolt (305). The two supports (302) are fixedly connected to the top left side of the annular sealing plate (201). A stainless steel support shaft is welded and fixed between the two supports (302). The rotating sleeve (303) is rotatably mounted on the stainless steel support shaft. The cover plate (3) is welded and fixed to the rotating sleeve (302). 3) On the right side, two U-shaped handles (306) are fixedly connected to the top two sides of the cover plate (3). The right side of the cover plate (3) has a threaded groove. The screw bolt (305) is threaded into the threaded groove. The fixing seat (304) is welded and fixed to the top right side of the annular sealing plate (201). The fixing seat (304) is threaded onto the screw bolt (305). The rubber pad (301) is bonded and fixed to the bottom of the cover plate (3) and is used to cover the inner top of the annular sealing plate (201).

4. The device for plugging slag leakage holes in vertical shafts according to claim 1, characterized in that: The inner side of the annular sealing plate (201) is vertically connected to the inner side of the annular box (2), and the annular box (2) is vertically connected to the inner side of the guide tube (1).

5. The device for plugging slag leakage holes in vertical shafts according to claim 1, characterized in that: A limiting groove is provided on the left inner wall of the outer cylinder (102), and a limiting block that is slidably connected to the left top of the telescopic cylinder (101) is fixedly connected to the limiting groove.

6. The device for plugging slag leakage holes in vertical shafts according to claim 2, characterized in that: The top of the telescopic cylinder (101) has four threaded grooves that are equally spaced in a ring shape, and the threaded grooves are threadedly connected to the corresponding screws (204).

7. The device for plugging slag leakage holes in vertical shafts according to claim 1, characterized in that: The inner side of the guide cylinder (1) and the bottom of the inner side of the telescopic cylinder (101) are both welded with reinforcing ribs (100). There are two reinforcing ribs (100) inside the guide cylinder (1), and the two adjacent reinforcing ribs (100) form a staggered cross shape.

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