Grouting stopping device for anchor rod

Abstract

The utility model discloses an anchor rod grout stopping device, which relates to the technical field of anchor rods, has the advantages of convenience in installation of grout stopping plugs and reduction of grout leakage, and adopts the technical scheme that the anchor rod grout stopping device comprises an anchor rod, the anchor rod is sleeved with two oppositely arranged semi-circular-truncated-cone grout stopping plugs, and the two semi-circular-truncated-cone grout stopping plugs are fixed through screws. A cylindrical groove with a semi-arc-shaped section is formed in the side, facing the anchor rod, of each semi-circular-truncated-cone grout stopping plug, the two semi-circular-truncated-cone grout stopping plugs are connected with the anchor rod in a clamped mode through the cylindrical grooves, the diameter of a point A of each semi-circular-truncated-cone grout stopping plug is larger than that of a point B of each semi-circular-truncated-cone grout stopping plug, and a semi-circular grout stopping plate is integrally formed in the position, close to the point A, of each semi-circular-truncated-cone grout stopping plug. And semicircular grooves are formed in the sides, facing the anchor rod, of the semicircular slurry stopping plates, and the two semicircular slurry stopping plates are nested outside the anchor rod through the semicircular grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rods, in particular to an anchor rod grouting stopping device. Background Art

[0002] In order to ensure the safety of the project during the construction period, it is necessary to install self-propelled anchors around the soil foundation pit to enhance the stability of the slope and prevent the slope from collapsing. The use of hollow grouting anchors and anchor cables for full anchor support can reinforce the broken surrounding rock, integrate anchoring and grouting, change the loose structure of the surrounding rock, improve the bonding force and internal friction angle, close the cracks, prevent water from eroding the rock mass, and significantly improve the strength of the rock mass. Grouting reinforcement can provide a reliable force foundation for the anchor rod, so that the anchor rod can play its anchoring role on the soft and broken surrounding rock. When drilling anchor rods and anchor cable holes in areas such as weak surrounding rock, fault fracture zones, and soft coal seams, stop plugs are often used to seal the anchor rod and anchor cable holes, and then the pad is set outside the anchor rod and conflicts with the stop plug.

[0003] However, the existing common grouting plugs seal the anchor rods and anchor cable holes, and overflow and leakage still occur during grouting, so the sealing performance needs to be improved. In addition, when installing the grouting plug, it needs to be put on the anchor rod from one end, which is inconvenient to operate. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of the utility model is to provide an anchor rod grouting stop device, which has the advantages of convenient installation of the grouting stop plug and reduced grouting leakage.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model provides an anchor rod grouting stopping device, comprising an anchor rod body, wherein the outer sleeve of the anchor rod body is provided with two relatively arranged semi-conical grouting stopping plugs, the two semi-conical grouting stopping plugs are fixed by screws, and the semi-conical grouting stopping plug is provided with a cylindrical groove with a semi-arc cross-section on the side facing the anchor rod body, and the two semi-conical grouting stopping plugs are clamped and connected to the anchor rod body through the cylindrical groove, the point A diameter of the semi-conical grouting stopping plug is larger than the point B diameter, and each of the semi-conical grouting stopping plugs is integrally formed with a semi-circular grouting stopping plate near point A, and the semi-circular grouting stopping plate is provided with a semi-circular groove on the side facing the anchor rod body, and the two semi-circular grouting stopping plates are nested outside the anchor rod body through the semi-circular groove.

[0007] By adopting the above technical scheme, the ends of the two semi-conical stop plugs and the semi-circular stop plate are fitted together to form a complete conical structure and a circular plate structure respectively, and the two semi-conical stop plugs and the two semi-circular stop plates are sleeved outside the anchor body, the semi-conical stop plugs are nested outside the anchor body through cylindrical grooves and fixedly connected by screws, and the semi-circular stop plates are nested outside the anchor body through semi-circular grooves, and the semi-circular stop plugs and the semi-circular stop plates are both adapted to the anchor body. By setting the semi-circular stop plugs and the semi-circular stop plates, there is no need to sleeve the semi-circular stop plugs and the semi-circular stop plates outside the anchor body and slide them to a suitable position outside the anchor body. It is only necessary to sleeve the semi-circular stop plugs and the semi-circular stop plates at suitable positions of the anchor body, thereby improving processing efficiency. The semi-circular stop plugs and the semi-circular stop plates are an integrated structure, and there is no gap between the semi-circular stop plugs and the semi-circular stop plates, which reduces slurry leakage and improves the stop slurry effect.

[0008] Preferably, a circular pressure plate adapted to the semicircular stop plate is also sleeved on the anchor rod body, a circular groove is opened on the circular pressure plate, and the circular pressure plate is sleeved on the anchor rod body through the circular groove, and a sealing component is provided between the circular pressure plate and the semicircular stop plate to improve the sealing of the gap between the circular pressure plate and the semicircular stop plate.

[0009] Through the above technical solution, the sealing assembly is arranged between the circular pressure plate and the semicircular stop plate. When the circular pressure plate moves toward the semicircular stop plate, the sealing assembly is pressed, and the sealing assembly expands and deforms, closing the gap between the circular pressure plate and the semicircular stop plate, thereby improving the sealing performance of the device.

[0010] Preferably, the sealing assembly includes a circular rubber sealing sheet located between a circular pressure plate and a semicircular stop plate, a circular hole being provided in the middle position of the circular rubber sealing sheet, the circular rubber sealing sheet being sleeved on the anchor rod body through the circular hole, the circular pressure plate being extended from the outer periphery of the circular rubber sealing sheet and being bent and extended upward, a lower arc-shaped groove being provided on the side of the semicircular stop plate facing away from the semicircular cone stop plug, a lower rubber ring with a semicircular cross-section being clamped and connected in the lower arc-shaped groove, the lower rubber ring extending out of the lower arc-shaped groove, and the portion of the lower rubber ring extending out of the lower arc-shaped groove being integrally formed with the circular rubber sealing sheet, an upper arc-shaped groove matching the lower arc-shaped groove being provided on the side of the circular pressure plate facing the semicircular stop plate, an upper rubber ring with a semicircular cross-section being clamped and connected in the upper arc-shaped groove, the upper rubber ring extending out of the upper arc-shaped groove, and the portion of the upper rubber ring extending out of the upper arc-shaped groove being integrally formed with the circular rubber sealing sheet.

[0011] Through the above technical scheme, the circular rubber sealing piece, the upper rubber ring and the lower rubber ring are integrally formed to be tightly connected with the circular pressure plate and the semicircular stop plate. The circular pressure plate moves to press the circular rubber sealing piece, which will cause the circular rubber sealing piece to expand and deform. The slurry will not leak from the gap between the two semicircular stop plugs, the semicircular stop plate and the circular pressure plate, thereby improving the sealing of the device.

[0012] Preferably, the circular pressure plate, the circular rubber sealing sheet and the semicircular pulp stop plate are clamped and connected via a connecting assembly.

[0013] Through the above technical solution, the circular pressure plate, the circular rubber sealing sheet and the semicircular pulp stop plate are clamped and connected through the connecting assembly, so that the circular pressure plate presses the circular rubber sealing sheet and is fixedly connected to the semicircular pulp stop plate.

[0014] Preferably, the connecting assembly includes an arc-shaped plate which is sleeved over the circular pressure plate, the circular rubber sealing sheet and the semicircular stop pulp plate. The arc-shaped plate is provided with a trapezoidal groove which is adapted to the circular pressure plate, the circular rubber sealing sheet and the semicircular stop pulp plate on the side facing the circular pressure plate. The arc-shaped plate is sleeved over the circular pressure plate, the circular rubber sealing sheet and the semicircular stop pulp plate through the trapezoidal groove and is tightly connected with the circular pressure plate, the circular rubber sealing sheet and the semicircular stop pulp plate.

[0015] Through the above technical scheme, when the circular pressure plate, the circular rubber sealing sheet and the semicircular stop pulp plate conflict with each other, the arc plate is sleeved on the circular pressure plate, the circular rubber sealing sheet and the semicircular stop pulp plate through the trapezoidal slot, and the arc plate, the circular pressure plate, the circular rubber sealing sheet and the semicircular stop pulp plate are fixedly connected.

[0016] Preferably, the arc plate is elastic, and a clamping head adapted to the circular pressure plate and the semicircular stop pulp plate is integrally formed on the side of the arc plate facing the circular pressure plate and the semicircular stop pulp plate. A slot adapted to the clamping head is provided on the side of the circular pressure plate and the semicircular stop pulp plate facing the clamping head, and the clamping head is clamped into the slot and tightly connected to the slot.

[0017] Through the above technical solution, by providing a clamping head and a clamping groove, the connection stability of the arc plate, the circular pressure plate and the semicircular slurry stop plate is further improved.

[0018] Preferably, the circular pressure plate is integrally formed with an upper annular baffle on the side away from the circular rubber sealing piece, and each of the semicircular slurry stop plates is integrally formed with a lower arc-shaped baffle on the side away from the circular rubber sealing piece, and the upper annular baffle and the lower arc-shaped baffle both abut against the inner circumference of the arc-shaped plate.

[0019] Through the above technical solution, the upper annular baffle plate and the lower arc-shaped baffle plate play a limiting role on the arc-shaped plate.

[0020] The beneficial effects of the utility model are: the ends of the two semi-conical stop plugs and the semi-circular stop plate are respectively fitted and combined into a complete truncated cone structure and a circular plate structure, the two semi-conical stop plugs and the two semi-circular stop plates are sleeved outside the anchor rod body, the semi-conical stop plugs are nested outside the anchor rod body through cylindrical grooves and fixedly connected by screws, the semi-circular stop plates are nested outside the anchor rod body through semi-circular grooves, the semi-circular stop plugs and the semi-circular stop plates are both adapted to the anchor rod body, and by providing the semi-circular stop plugs and the semi-circular stop plates, there is no need to sleeve the semi-circular stop plugs and the semi-circular stop plates outside the anchor rod body and slide them to a suitable position outside the anchor rod body, and the semi-circular stop plugs and the semi-circular stop plates only need to be sleeved at suitable positions of the anchor rod body, thereby improving processing efficiency, and the semi-circular stop plugs and the semi-circular stop plates are an integrated structure, and there is no gap between the semi-circular stop plugs and the semi-circular stop plates, which reduces slurry leakage and improves the slurry stopping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of this embodiment;

[0023] Figure 2 This is a schematic diagram of the structure of a circular rubber sealing sheet according to the present embodiment;

[0024] Figure 3 This is a schematic diagram of the structure of the lower rubber ring of this embodiment;

[0025] Figure 4 It is a schematic structural diagram of a cross-section of a circular pressing plate of this embodiment;

[0026] Figure 5 For this embodiment Figure 4 The enlarged structural diagram at C in the middle;

[0027] Figure 6 This is a schematic cross-sectional view of the circular rubber sealing sheet of this embodiment;

[0028] Figure 7 For this embodiment Figure 6 Enlarged structural diagram at point D in the middle.

[0029] Description of reference numerals:

[0030] In the figure: 1. anchor rod body; 2. semi-circular cone stop plug; 3. cylindrical groove; 4. semi-circular stop plate; 5. semi-circular groove; 6. circular pressure plate; 7. circular groove; 8. circular rubber sealing sheet; 9. circular hole; 10. lower arc-shaped groove; 11. lower rubber ring; 12. upper arc-shaped groove; 13. upper rubber ring; 14. arc plate; 15. trapezoidal slot; 16. clamp head; 17. slot; 18. upper annular baffle; 19. lower arc-shaped baffle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] An anchor grouting device, such as Figure 1-7 , including an anchor body 1, the outer cover of the anchor body 1 is provided with two oppositely arranged semi-conical slurry stop plugs 2, the two semi-conical slurry stop plugs 2 are fixed by screws, and a cylindrical groove 3 with a semi-arc cross-section is opened on the side of the semi-conical slurry stop plug 2 facing the anchor body 1, the two semi-conical slurry stop plugs are clamped and connected with the anchor body 1 through the cylindrical groove 3, the point A diameter of the semi-conical slurry stop plug 2 is larger than the point B diameter, each semi-conical slurry stop plug 2 is integrally formed with a semi-circular slurry stop plate 4 near point A, the semi-circular slurry stop plate 4 is provided with a semi-circular groove 5 on the side of the anchor body 1, and the two semi-circular slurry stop plates 4 are nested outside the anchor body 1 through the semi-circular groove 5.

[0033] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 6 The ends of the two semi-conical stop plugs and the semi-circular stop plate 4 are respectively combined into a complete truncated cone structure and a circular plate structure. The two semi-conical stop plugs and the two semi-circular stop plates 4 are sleeved outside the anchor body 1. The semi-conical stop plug 2 is nested outside the anchor body 1 through the cylindrical groove 3 and fixedly connected by screws. The semi-circular stop plate 4 is nested outside the anchor body 1 through the semi-circular groove 5. The semi-circular stop plug and the semi-circular stop plate 4 are both adapted to the anchor body 1. By setting a semicircular slurry stop plug and a semicircular slurry stop plate 4, there is no need to sleeve the semicircular slurry stop plug and the semicircular slurry stop plate 4 outside the anchor body 1 and slide them to a suitable position outside the anchor body 1. It is only necessary to sleeve the semicircular slurry stop plug and the semicircular slurry stop plate 4 at a suitable position of the anchor body 1, thereby improving the processing efficiency. In addition, the semicircular slurry stop plug and the semicircular slurry stop plate 4 are an integrated structure, and there is no gap between the semicircular slurry stop plug and the semicircular slurry stop plate 4, which reduces slurry leakage and improves the slurry stop effect.

[0034] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 6 A circular pressure plate 6 adapted to the semicircular stop plate 4 is also sleeved on the outside of the anchor body 1. A circular groove 7 is opened on the circular pressure plate 6. The circular pressure plate 6 is sleeved on the outside of the anchor body 1 through the circular groove 7. A sealing component is provided between the circular pressure plate 6 and the semicircular stop plate 4 to improve the sealing performance of the gap between the circular pressure plate 6 and the semicircular stop plate 4.

[0035] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 6 The sealing component is arranged between the circular pressure plate 6 and the semicircular stop plate 4. When the circular pressure plate 6 moves toward the semicircular stop plate 4, the sealing component is pressed, and the sealing component expands and deforms, closing the gap between the circular pressure plate 6 and the semicircular stop plate 4, thereby improving the sealing performance of the device.

[0036] like Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 The sealing assembly includes a circular rubber sealing piece 8 located between the circular pressure plate 6 and the semicircular slurry stop plate 4. A circular hole 9 is opened in the middle position of the circular rubber sealing piece 8. The circular rubber sealing piece 8 is sleeved on the outside of the anchor body 1 through the circular hole 9. The outer periphery of the circular rubber sealing piece 8 extends out of the circular pressure plate 6 and bends upward.

[0037] like Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 A lower arc-shaped groove 10 is provided on the side of the semicircular stop plate 4 facing away from the semicircular cone stop plug 2, and a lower rubber ring 11 with a semicircular cross-section is clamped in the lower arc-shaped groove 10. The lower rubber ring 11 extends out of the lower arc-shaped groove 10, and the part of the lower rubber ring 11 extending out of the lower arc-shaped groove 10 is integrated with the circular rubber sealing piece 8. An upper arc-shaped groove 12 matching the lower arc-shaped groove 10 is provided on the side of the circular pressure plate 6 facing the semicircular stop plate 4, and an upper rubber ring 13 with a semicircular cross-section is clamped in the upper arc-shaped groove 12. The upper rubber ring 13 extends out of the upper arc-shaped groove 12, and the part of the upper rubber ring 13 extending out of the upper arc-shaped groove 12 is integrated with the circular rubber sealing piece 8.

[0038] like Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 The circular rubber sealing piece 8, the upper rubber ring 13 and the lower rubber ring 11 are integrally formed to be tightly connected with the circular pressure plate 6 and the semicircular stop plate 4. The circular pressure plate 6 moves to press the circular rubber sealing piece 8, which will cause the circular rubber sealing piece 8 to expand and deform. The slurry will not leak from the gap between the two semicircular stop plugs, the semicircular stop plate 4 and the circular pressure plate 6, thereby improving the sealing performance of the device.

[0039] like Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 The circular pressure plate 6, the circular rubber sealing piece 8 and the semicircular stop pulp plate 4 are clamped and connected by a connecting component, so that the circular pressure plate 6 presses the circular rubber sealing piece 8 and is fixedly connected to the semicircular stop pulp plate 4.

[0040] like Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 The connecting component includes an arc plate 14 which is sleeved on the circular pressure plate 6, the circular rubber sealing sheet 8 and the semicircular stop pulp plate 4. The arc plate 14 has a trapezoidal groove 15 on the side facing the circular pressure plate 6 which is adapted to the circular pressure plate 6, the circular rubber sealing sheet 8 and the semicircular stop pulp plate 4. The arc plate 14 is sleeved on the circular pressure plate 6, the circular rubber sealing sheet 8 and the semicircular stop pulp plate 4 through the trapezoidal groove 15 and is tightly connected with the circular pressure plate 6, the circular rubber sealing sheet 8 and the semicircular stop pulp plate 4.

[0041] like Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 When the circular pressure plate 6, the circular rubber sealing sheet 8 and the semicircular stop pulp plate 4 conflict with each other, the arc plate 14 is sleeved on the circular pressure plate 6, the circular rubber sealing sheet 8 and the semicircular stop pulp plate 4 through the trapezoidal groove 15, and the arc plate 14, the circular pressure plate 6, the circular rubber sealing sheet 8 and the semicircular stop pulp plate 4 are fixedly connected.

[0042] like Figure 1 and Figure 2 The connection between the two arc-shaped plates 14 does not overlap with the connection between the two semicircular stop plates 4.

[0043] like Figure 7The arc plate 14 is elastic, and a clamping head 16 adapted to the circular pressure plate 6 and the semicircular stop pulp plate 4 is integrally formed on the side of the arc plate 14 facing the circular pressure plate 6 and the semicircular stop pulp plate 4. A clamping groove 17 adapted to the clamping head 16 is provided on the side of the circular pressure plate 6 and the semicircular stop pulp plate 4 facing the clamping head 16, and the clamping head 16 is clamped into the clamping groove 17 and is tightly connected with the clamping groove 17.

[0044] like Figure 7 By providing the clamping head 16 and the clamping groove 17, the connection stability of the arc plate 14, the circular pressure plate 6 and the semicircular slurry stop plate 4 is further improved.

[0045] like Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 An upper annular baffle 18 is integrally formed on the side of the circular pressure plate 6 facing away from the circular rubber sealing piece 8, and a lower arc baffle 19 is integrally formed on the side of each semicircular slurry stop plate 4 facing away from the circular rubber sealing piece 8. Both the upper annular baffle 18 and the lower arc baffle 19 are in contact with the inner periphery of the arc plate 14.

[0046] like Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 The upper annular baffle 18 and the lower arc-shaped baffle 19 limit the arc-shaped plate 14 .

[0047] When in use, two relatively adapted semi-circular stop plugs 2 are sleeved at appropriate positions of the anchor body 1 through the cylindrical groove 3, and the two semi-circular stop plugs are fixedly connected by screws, and then the circular rubber sealing sheet 8 is placed on the semi-circular stop plate 4, the lower rubber ring 11 is clamped into the lower arc groove 10, and then the circular pressing plate 6 is placed on the circular rubber sealing sheet 8, and the upper rubber ring 13 is clamped into the upper arc groove 12, and then the two arc plates 14 are sleeved outside the semi-circular stop plate 4, the circular rubber sealing sheet 8 and the circular pressing plate 6, and the clamp head 16 is clamped into the clamping groove 17 and is clamped and connected with the clamping groove 17, which further improves the stability and sealing of the connection between the semi-circular stop plate 4, the circular rubber sealing sheet 8 and the circular pressing plate 6, and reduces the possibility of slurry leakage.

[0048] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An anchor grouting device, characterized in that: The invention comprises an anchor rod body (1), wherein the outer sleeve of the anchor rod body (1) is provided with two oppositely arranged semi-conical stop plugs (2), the two semi-conical stop plugs (2) are fixed by screws, the semi-conical stop plug (2) is provided with a cylindrical groove (3) with a semi-arc cross section on the side facing the anchor rod body (1), the two semi-conical stop plugs are clamped and connected to the anchor rod body (1) through the cylindrical groove (3), the diameter of point A of the semi-conical stop plug (2) is greater than the diameter of point B, each semi-conical stop plug (2) is integrally formed with a semi-circular stop plate (4) near point A, the semi-circular stop plate (4) is provided with a semi-circular groove (5) on the side facing the anchor rod body (1), and the two semi-circular stop plates (4) are nested outside the anchor rod body (1) through the semi-circular groove (5).

2. The anchor grouting device according to claim 1, characterized in that: The anchor rod body (1) is also sleeved with a circular pressure plate (6) adapted to the semicircular stop plate (4), the circular pressure plate (6) is provided with a circular groove (7), the circular pressure plate (6) is sleeved on the anchor rod body (1) through the circular groove (7), and a sealing component is provided between the circular pressure plate (6) and the semicircular stop plate (4) to improve the sealing performance of the gap between the circular pressure plate (6) and the semicircular stop plate (4).

3. The anchor grouting device according to claim 2, characterized in that: The sealing assembly comprises a circular rubber sealing sheet (8) located between the circular pressure plate (6) and the semicircular stop plate (4); a circular hole (9) is provided in the middle of the circular rubber sealing sheet (8); the circular rubber sealing sheet (8) is sleeved outside the anchor rod body (1) through the circular hole (9); the outer periphery of the circular rubber sealing sheet (8) extends out of the circular pressure plate (6) and bends upward; The semicircular stop plate (4) is provided with a lower arc groove (10) on the side facing away from the semi-conical stop plug (2), and a lower rubber ring (11) with a semicircular cross section is clamped in the lower arc groove (10), and the lower rubber ring (11) extends out of the lower arc groove (10), and the portion of the lower rubber ring (11) extending out of the lower arc groove (10) is integrally formed with the circular rubber sealing sheet (8), and the circular pressure plate (6) is provided with an upper arc groove (12) adapted to the lower arc groove (10) on the side facing the semicircular stop plate (4), and an upper rubber ring (13) with a semicircular cross section is clamped in the upper arc groove (12), and the upper rubber ring (13) extends out of the upper arc groove (12), and the portion of the upper rubber ring (13) extending out of the upper arc groove (12) is integrally formed with the circular rubber sealing sheet (8).

4. The anchor grouting device according to claim 3, characterized in that: The circular pressing plate (6), the circular rubber sealing sheet (8) and the semicircular pulp stopping plate (4) are clamped and connected via a connecting assembly.

5. The anchor rod grouting device according to claim 4, characterized in that: The connecting assembly comprises an arc plate (14) sleeved outside the circular pressure plate (6), the circular rubber sealing sheet (8) and the semicircular stop plate (4); the arc plate (14) is provided with a trapezoidal groove (15) adapted to the circular pressure plate (6), the circular rubber sealing sheet (8) and the semicircular stop plate (4) on the side facing the circular pressure plate (6); the arc plate (14) is sleeved outside the circular pressure plate (6), the circular rubber sealing sheet (8) and the semicircular stop plate (4) through the trapezoidal groove (15) and is clamped and connected to the circular pressure plate (6), the circular rubber sealing sheet (8) and the semicircular stop plate (4).

6. The anchor grout stopping device according to claim 5, characterized in that: The arc plate (14) is elastic, and a clamping head (16) adapted to the circular pressure plate (6) and the semicircular stop plate (4) is integrally formed on one side of the arc plate (14) facing the circular pressure plate (6) and the semicircular stop plate (4), and a clamping groove (17) adapted to the clamping head (16) is provided on one side of the circular pressure plate (6) and the semicircular stop plate (4) facing the clamping head (16), and the clamping head (16) is clamped into the clamping groove (17) and is tightly connected to the clamping groove (17).

7. The anchor grouting device according to claim 5, characterized in that: An upper annular baffle (18) is integrally formed on the side of the circular pressure plate (6) facing away from the circular rubber sealing sheet (8), and a lower arc-shaped baffle (19) is integrally formed on the side of each semicircular stop plate (4) facing away from the circular rubber sealing sheet (8), and both the upper annular baffle (18) and the lower arc-shaped baffle (19) are in contact with the inner periphery of the arc-shaped plate (14).

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