Combined hollow grouting anchor rod

Abstract

The combined type hollow grouting anchor rod comprises a hollow rod, a one-way assembly, a reinforcing assembly and a grout stopping assembly, the one-way assembly is arranged at one end of the hollow rod, the reinforcing assembly is arranged on the outer side of the hollow rod, the grout stopping assembly is arranged on one side of the reinforcing assembly, and a reinforcing ring is arranged in the hollow rod, so that the grout stopping assembly can stop grout in the hollow rod. The two sides of each reinforcing ring are fixedly connected through radial teeth, the other set of radial teeth on the other set of reinforcing rings are matched with the radial teeth, locking grooves matched with the radial teeth are formed in one side of the nut and one side of the base plate, and when grouting is conducted on the hollow grouting anchor rod, vibration and the like can be generated. The radial teeth can enable the joint of the nut and the base plate to generate extra friction force and mechanical resistance, the nut is prevented from rotating in the axial direction or the circumferential direction, the anti-loosening purpose is achieved, therefore, the nut cannot be loosened in the high-stress environment, and the problem that the nut and the base plate are loosened due to vibration in the grouting process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hollow grouting anchor rod technology specifically, and relates to a combined hollow grouting anchor rod. BACKGROUND

[0002] Hollow grouting anchor rod is a device for rock and soil reinforcement and support, which is connected with rock and soil body closely through grouting, and the grout can fill the pores and fissures of rock and soil body, improve the strength and integrity of rock and soil body, and provide anchoring force, and the grouting process can also play a role in water stop.

[0003] The existing combined hollow grouting anchor rod is usually connected by directly using threads between the connecting plate, nut and rod body during use, and the current connection mode may be loose in high stress environment, and the pressure changes due to the change of grout capacity during long grouting process, so that the grout flows reversely due to pressure difference, and the forming grouting structure is damaged.

[0004] For the problems in the related art, no effective solution has been proposed so far. SUMMARY

[0005] In view of the problems in the related art, the utility model provides a combined hollow grouting anchor rod to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the specific technical scheme as follows:

[0007] A combined hollow grouting anchor rod, comprising a hollow rod, a one-way component, a reinforcing component and a grout stopping component, the one-way component is arranged at one end of the hollow rod, the reinforcing component is arranged on the outside of the hollow rod, and the grout stopping component is arranged on one side of the reinforcing component.

[0008] The utility model further discloses that the reinforcing component comprises a pad, a reinforcing ring, a radial tooth and a nut, the pad is arranged on the outside of the hollow rod, the reinforcing ring is arranged on one side of the pad, the radial tooth is arranged on one side of the reinforcing ring, and the nut is arranged on one side of the reinforcing ring.

[0009] The utility model further discloses that the one-way component comprises a shell, an inner sleeve, a top plate, a spring and a connecting plate, the shell is arranged at one end of the hollow rod, the inner sleeve is arranged in the shell, the top plate is arranged on the inner side of the inner sleeve, the spring is arranged on one side of the top plate, and the connecting plate is arranged at one end of the spring.

[0010] The utility model further discloses that the grout stopping component comprises a grout stopping plug and an inflatable rubber ring, the grout stopping plug is arranged on the outside of the hollow rod, and the inflatable rubber ring is arranged on one side of the grout stopping plug.

[0011] The utility model further illustrates: one end of hollow rod is provided with the connecting sleeve, one end of connecting sleeve is provided with another group of hollow rod, one end of another group of hollow rod is provided with anchor head.

[0012] The utility model further illustrates: one end of spring is fixedly connected with top plate, the other end of spring is fixedly connected with connecting plate, connecting plate is fixedly connected with inner cover.

[0013] The utility model discloses the beneficial effect is: through being provided with reinforcing ring, the both sides of reinforcing ring are fixedly connected through the radiation tooth, another group of radiation tooth on another group of reinforcing ring is mutually adapted with radiation tooth, the one side of nut and backing plate is provided with the locking groove that is mutually adapted with radiation tooth, when grouting to hollow grouting anchor rod, vibration etc., radiation tooth will make the connecting place of nut and backing plate produce additional friction and mechanical resistance, prevent the rotation of nut in axial or circumferential direction, reach the purpose of preventing loosening, so that the nut will not produce loosening under high stress environment;

[0014] Through being provided with spring, the shell is fixedly connected with inner cover, and the opening is provided on the connecting plate for passing slurry, through the combination use between spring, top plate and connecting plate, form one-way valve, when grouting to hollow grouting anchor rod, the pressure of grouting will extrude top plate and let slurry pass through the opening on inner cover and connecting plate, and the spring force of spring keeps the stability of pressure, when grouting equipment stops grouting or grouting pressure reduces, spring resets top plate and closes grouting port, thereby preventing slurry backflow. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

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

[0017] Figure 2 It is the exploded view schematic diagram according to the embodiment of the utility model;

[0018] Figure 3 It is the reinforcing assembly structure schematic diagram according to the embodiment of the utility model;

[0019] Figure 4 It is the one-way component structure schematic diagram according to the embodiment of the utility model.

[0020] In the drawing:

[0021] 1, hollow rod; 11, connecting sleeve; 12, anchor head; 2, one-way assembly; 21, outer shell; 22, inner sleeve; 23, top plate; 24, spring; 25, connecting plate; 3, reinforcing assembly; 31, pad; 32, reinforcing ring; 33, radial tooth; 34, nut; 4, grout stopping assembly; 41, grout stopping plug; 42, expanded rubber ring. DETAILED DESCRIPTION

[0022] To further illustrate the embodiments, the utility model provides the drawings, these drawings are part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate with the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0023] According to the embodiment of the utility model, a combined hollow grouting anchor rod is provided.

[0024] As Figures 1-4 shown, according to the combined hollow grouting anchor rod of the utility model embodiment, including hollow rod 1, one-way assembly 2, reinforcing assembly 3 and grout stopping assembly 4, one-way assembly 2 is arranged at one end of hollow rod 1, reinforcing assembly 3 is arranged on the outside of hollow rod 1, and grout stopping assembly 4 is arranged on one side of reinforcing assembly 3.

[0025] Reinforcing assembly 3 includes pad 31, reinforcing ring 32, radial tooth 33 and nut 34, pad 31 is arranged on the outside of hollow rod 1, reinforcing ring 32 is arranged on one side of pad 31, radial tooth 33 is arranged on one side of reinforcing ring 32, nut 34 is arranged on one side of reinforcing ring 32, both sides of reinforcing ring 32 are fixedly connected through radial tooth 33, another set of radial tooth 33 on another set of reinforcing ring 32 is mutually adapted with radial tooth 33, and the side of pad 31 and nut 34 is provided with locking groove mutually adapted with radial tooth 33, when grouting hollow grouting anchor rod, vibration, etc. will be generated, radial tooth 33 will make the connecting place of nut 34 and pad 31 produce additional friction and mechanical resistance, prevent the rotation of nut 34 in the axial direction or the circumferential direction, achieve the purpose of preventing loosening, so that nut 34 will not loosen in the high stress environment.

[0026] The one-way assembly 2 comprises a shell 21, an inner sleeve 22, a top plate 23, a spring 24 and a connecting plate 25, the shell 21 is arranged at one end of the hollow rod 1, the inner sleeve 22 is arranged inside the shell 21, the top plate 23 is arranged inside the inner sleeve 22, the spring 24 is arranged at one side of the top plate 23, the connecting plate 25 is arranged at one end of the spring 24, the shell 21 is fixedly connected with the inner sleeve 22, the connecting plate 25 is provided with an opening for passing the slurry, the spring 24, the top plate 23 and the connecting plate 25 are combined to form a one-way valve, when the hollow grouting anchor rod is grouted, the pressure of grouting will extrude the top plate 23 to make the slurry pass through the opening on the inner sleeve 22 and the connecting plate 25, at the same time, the spring 24 can keep the pressure stable, when the grouting equipment stops grouting or the grouting pressure is reduced, the spring 24 can reset the top plate 23 to close the grouting port, thereby preventing the slurry from flowing back.

[0027] The stop grouting assembly 4 comprises a stop grouting plug 41 and an expanded rubber ring 42, the stop grouting plug 41 is arranged outside the hollow rod 1, and the expanded rubber ring 42 is arranged at one side of the stop grouting plug 41.

[0028] One end of the hollow rod 1 is provided with a connecting sleeve 11, one end of the connecting sleeve 11 is provided with another group of hollow rods 1, one end of the other group of hollow rods 1 is provided with an anchor head 12.

[0029] One end of the spring 24 is fixedly connected with the top plate 23, the other end of the spring 24 is fixedly connected with the connecting plate 25, and the connecting plate 25 is fixedly connected with the inner sleeve 22.

[0030] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail.

[0031] In actual application, the two sides of the reinforcing ring 32 are fixedly connected through the radial teeth 33, another group of radial teeth 33 on another group of reinforcing rings 32 are matched with each other, the nut 34 and one side of the backing plate 31 are both provided with locking grooves matched with the radial teeth 33, when the hollow grouting anchor rod is grouted, vibration and the like will be generated, the radial teeth 33 can generate additional friction and mechanical resistance at the connection between the nut 34 and the backing plate 31, so as to prevent the rotation of the nut 34 in the axial direction or the circumferential direction, so as to prevent the nut 34 from loosening in the high stress environment, the shell 21 is fixedly connected with the inner sleeve 22, the connecting plate 25 is provided with an opening for passing the slurry, the spring 24, the top plate 23 and the connecting plate 25 are combined to form a one-way valve, when the hollow grouting anchor rod is grouted, the pressure of grouting will extrude the top plate 23 to make the slurry pass through the opening on the inner sleeve 22 and the connecting plate 25, at the same time, the spring 24 can keep the pressure stable, when the grouting equipment stops grouting or the grouting pressure is reduced, the spring 24 can reset the top plate 23 to close the grouting port, thereby preventing the slurry from flowing back.

[0032] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A combined hollow grouting anchor rod, characterized in that, Including hollow rod (1), one-way component (2), reinforcing assembly (3) and stop group assembly (4), one-way component (2) is arranged at one end of hollow rod (1), reinforcing assembly (3) is arranged at the outside of hollow rod (1), stop group assembly (4) is arranged at one side of reinforcing assembly (3); The reinforcing assembly (3) includes a backing plate (31), a reinforcing ring (32), a radial tooth (33) and a nut (34), the backing plate (31) is arranged at the outside of the hollow rod (1), the reinforcing ring (32) is arranged at one side of the backing plate (31), the radial tooth (33) is arranged at one side of the reinforcing ring (32), and the nut (34) is arranged at one side of the reinforcing ring (32); The one-way component (2) includes a housing (21), an inner sleeve (22), a top plate (23), a spring (24) and a connecting plate (25), the housing (21) is arranged at one end of the hollow rod (1), the inner sleeve (22) is arranged inside the housing (21), the top plate (23) is arranged inside the inner sleeve (22), the spring (24) is arranged at one side of the top plate (23), and the connecting plate (25) is arranged at one end of the spring (24).

2. The combined hollow grouting anchor rod according to claim 1, characterized in that, The stop group assembly (4) includes a stop plug (41) and an expanded rubber ring (42), the stop plug (41) is arranged at the outside of the hollow rod (1), and the expanded rubber ring (42) is arranged at one side of the stop plug (41).

3. The combined hollow grouting anchor rod according to claim 1, characterized in that, One end of the hollow rod (1) is provided with a connecting sleeve (11), one end of the connecting sleeve (11) is provided with another group of hollow rods (1), one end of the other group of hollow rods (1) is provided with an anchor head (12).

4. A combined hollow grouting anchor rod according to claim 3, characterized in that One end of the spring (24) is fixedly connected with the top plate (23), the other end of the spring (24) is fixedly connected with the connecting plate (25), and the connecting plate (25) is fixedly connected with the inner sleeve (22).

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