CN215562676U

CN215562676U - Subway station foundation ditch convolution steel pipe support stock

Info

Publication number: CN215562676U
Application number: CN202121978221.8U
Authority: CN
Inventors: 赵丁墨; 刘峰; 张连佳; 常婷婷
Original assignee: Liaoning Institute of Science and Technology
Current assignee: Liaoning Institute of Science and Technology
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-18
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a rotary steel pipe support anchor rod for a foundation pit of a subway station, which comprises a support slope body, wherein a fixing pedestal is fixedly connected onto the support slope body, a fixing disc is connected onto the fixing pedestal, an outer rod body is connected onto the fixing disc, a threaded hollow rod is connected onto the outer rod body, a reinforcing sleeve is connected onto the threaded hollow rod, a supporting block is arranged on the outer rod body and connected with a bolt clamping block through a switching rod, a sealing gasket is arranged on the bottom surface of the fixing disc, a built-in rod is arranged at the bottom of the fixing disc and connected with a leakage-proof block, a grout outlet head is connected to the bottom end of the built-in rod, and a fixing rod is connected to the bottom of the grout outlet head. According to the utility model, the sealing gasket and the leakage-proof block are arranged, so that the fixing disc and the fixing table seat are fixed well by using the bolt after the anchor rod is inserted into the supporting slope body, the sealing gasket can play a role in strengthening the sealing property and preventing slurry from leaking outwards, and meanwhile, the leakage-proof block can also play a role in stopping leakage and plays a good protection role.

Description

Subway station foundation ditch convolution steel pipe support stock

Technical Field

The utility model relates to the technical field of support anchor rod design, in particular to a rotary steel pipe support anchor rod for a foundation pit of a subway station.

Background

The anchor bolt support is a reinforcing support mode adopted in surface engineering such as side slopes, rock-soil deep foundation pits and the like and underground chamber construction such as tunnels, stopes and the like. The method is characterized in that a pole column is made of metal pieces, wood pieces, polymer pieces or other materials, and is driven into a hole which is drilled in advance in an earth surface rock body or a rock body around a chamber, and the special structure of the head part and the pole body and a tail supporting plate (which can be omitted) are utilized, or the surrounding rock and a stable rock body are combined together by depending on the bonding action to generate the suspension effect, the combination beam effect and the reinforcing effect, so that the aim of supporting is fulfilled. The method has the advantages of low cost, good supporting effect, simple and convenient operation, flexible use, less occupied construction clearance and the like.

The existing rotary steel pipe support anchor rod is easy to block due to slurry discharge from the bottom during grouting, unnecessary troubles are brought to work due to the fact that slurry leakage is easy to occur, and therefore the rotary steel pipe support anchor rod for the foundation pit of the subway station needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the existing rotary steel pipe support anchor rod is easy to block due to slurry discharge from the bottom during grouting, slurry leakage is easy to occur, and unnecessary troubles are brought to work.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a subway station foundation ditch convolution type steel pipe support stock, is including strutting the slope body, strut the fixed pedestal of fixedly connected with on the slope body, be connected with the fixed disk on the fixed pedestal, be connected with the outer body of rod on the fixed disk, be connected with the cavity pole in the screw thread on the outer body of rod, be connected with on the cavity pole in the screw thread and consolidate the cover, the supporting shoe is equipped with on the outer body of rod, the supporting shoe is connected with the bolt fixture block through the switching pole, the bottom surface of fixed disk is equipped with sealed the pad, built-in rod is equipped with in the bottom of fixed disk, be connected with the leak protection piece on the built-in rod, the bottom of built-in rod is connected with out the thick liquid head, the bottom of going out the thick liquid head is connected with the dead lever, the bottom of dead lever is connected with and consolidates the dish, the bottom of consolidating the dish is equipped with the metal prick.

Preferably, screw thread hollow rod and outer body of rod are threaded connection and are hollow structure, reinforced cover and screw thread hollow rod threaded connection just with outer body of rod adhesion connection.

Preferably, be groove connection between supporting shoe and the outer shank, the supporting shoe rotates with the switching pole to be connected and switching pole and bolt fixture block welded connection, the bolt fixture block uses bolt and fixed disk butt joint.

Preferably, the sealing gasket is connected with the bottom surface of the fixed disc in an adhesion manner, the built-in rod is of an inner hollow structure and is communicated with an outer rod body, and the outer diameter of the leakage-proof block is the same as the inner diameter of a groove opening formed in the supporting slope body and the fixed pedestal.

Preferably, the pulp outlet head is connected with the built-in rod and the fixed rod in an opening mode, and circular through holes which are uniformly distributed are formed in the pulp outlet head.

Preferably, the fixing rod is designed to be a solid structure, a hollow opening is formed in the top end of the fixing rod, and integrally-carved external threads are arranged on the surface of the fixing rod.

Preferably, the reinforcing disc is in welded connection with the fixing rod, and the metal pricks are uniformly distributed at the bottom of the reinforcing disc.

Compared with the prior art, the utility model has the following advantages:

1. the threaded hollow rod is arranged, so that the threaded hollow rod can be rotated according to the required length before installation, the length of the external part of the anchor rod is adjusted, the applicability of the anchor rod is improved, the reinforcing sleeve can be installed on the threaded hollow rod after adjustment, the reinforcing sleeve and the outer rod body are adhered and fixed well by using the adhesive, the connection stability between the threaded hollow rod and the outer rod body is enhanced, and the use is very good;

2. according to the utility model, the sealing gasket and the leakage-proof block are arranged, so that the fixing disc and the fixing pedestal are fixed well by using the bolt after the anchor rod is inserted into the supporting slope body, the sealing gasket can play a role in enhancing the sealing property at the moment, slurry is prevented from leaking outwards, and meanwhile, the leakage-proof block can also play a role in stopping leakage and plays a good protection role;

3. according to the utility model, the grout outlet head is arranged, so that after grouting is started, grout enters the built-in rod through the outer rod body and the threaded hollow rod, then enters the grout outlet head through the built-in rod, and finally flows out of the circular through hole in the grout outlet head.

Drawings

Fig. 1 is a schematic front view of an internal structure of a foundation pit rotary steel pipe support anchor rod of a subway station, which is provided by the utility model;

fig. 2 is a schematic front view of an external structure of a foundation pit rotary steel pipe support anchor rod of a subway station, which is provided by the utility model;

fig. 3 is an enlarged structural schematic diagram of a position a of a foundation pit rotary steel pipe support anchor rod of the subway station, which is provided by the utility model;

fig. 4 is an enlarged structural schematic diagram of a position B of a foundation pit rotary steel pipe support anchor rod of the subway station provided by the utility model.

In the figure: 1. supporting a slope body; 2. a fixed pedestal; 3. fixing the disc; 4. an outer rod body; 5. a threaded hollow rod; 6. reinforcing the sleeve; 7. a support block; 8. a transfer lever; 9. a bolt fixture block; 10. a gasket; 11. a built-in rod; 12. a leakage-proof block; 13. discharging the pulp head; 14. fixing the rod; 15. reinforcing the disc; 16. and (5) metal prickling.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, the rotary steel pipe support anchor rod for the foundation pit of the subway station comprises a support slope body 1, wherein a fixing pedestal 2 is fixedly connected to the support slope body 1, a fixing disc 3 is connected to the fixing pedestal 2, an outer rod body 4 is connected to the fixing disc 3, a threaded hollow rod 5 is connected to the outer rod body 4, a reinforcing sleeve 6 is connected to the threaded hollow rod 5, a supporting block 7 is arranged on the outer rod body 4, the supporting block 7 is connected with a bolt clamping block 9 through a switching rod 8, a sealing gasket 10 is arranged on the bottom surface of the fixing disc 3, an inner rod 11 is arranged at the bottom of the fixing disc 3, a leakage-proof block 12 is connected to the inner rod 11, a grout outlet head 13 is connected to the bottom of the inner rod 11, a fixing rod 14 is connected to the bottom of the grout outlet head 13, a reinforcing disc 15 is connected to the bottom of the fixing rod 14, and a metal conical burr 16 is arranged at the bottom of the reinforcing disc 15;

it is worth mentioning that the threaded hollow rod 5 and the outer rod body 4 are in threaded connection and are both of a hollow structure, the reinforcing sleeve 6 is in threaded connection with the threaded hollow rod 5 and is in adhesion connection with the outer rod body 4, so that the threaded hollow rod 5 can be rotated according to the required length before installation, the length of the external part of the anchor rod is adjusted, the applicability of the anchor rod is improved, the reinforcing sleeve 6 can be installed on the threaded hollow rod 5 after adjustment, the reinforcing sleeve 6 and the outer rod body 4 can be fixed in an adhesion manner by using an adhesive, and the connection stability between the threaded hollow rod 5 and the outer rod body 4 is enhanced, so that the use is very good;

it is worth mentioning that the supporting block 7 is connected with the outer rod body 4 through a groove, the supporting block 7 is rotatably connected with the adapter rod 8, the adapter rod 8 is welded with the bolt clamping block 9, the bolt clamping block 9 is butted with the fixed disc 3 through a bolt, after the threaded hollow rod 5 is adjusted, the supporting block 7 is connected with the outer rod body 4, then the bolt clamping block 9 is clamped on the fixed disc 3 through the adapter rod 8, and then the bolt is used for reinforcing, so that the adapter rod 8 can play a good supporting effect on the outer rod body 4, and the outer rod body 4 is prevented from being accidentally broken;

it is worth mentioning that the sealing gasket 10 is connected with the bottom surface of the fixed disk 3 in an adhesion manner, the built-in rod 11 is of an inner hollow structure and is communicated with the outer rod body 4, the outer diameter of the leakage-proof block 12 is the same as the inner diameter of the groove openings formed in the supporting slope body 1 and the fixing pedestal 2, and therefore the fixed disk 3 and the fixing pedestal 2 can be fixed well by using bolts after the anchor rod is inserted into the supporting slope body 1, the sealing gasket 10 can play a role in strengthening the sealing performance and preventing slurry from leaking outside, and meanwhile, the leakage-proof block 12 can also play a role in stopping leakage prevention and plays a good protection role;

it is worth mentioning that the grout outlet head 13 is connected with the built-in rod 11 and the fixed rod 14 in an open hole manner, circular through holes are uniformly distributed on the grout outlet head 13, so that after grouting is started, grout enters the built-in rod 11 through the outer rod body 4 and the threaded hollow rod 5, then enters the grout outlet head 13 through the built-in rod 11, and finally flows out of the circular through holes in the grout outlet head 13, due to the action of gravity, the grout can preferentially flow towards the bottom of the anchor rod, and finally the notch is filled, so that the situation that the grout outlet at the bottom is blocked is avoided;

it is worth mentioning that the fixing rod 14 is designed to be a solid structure, the top end of the fixing rod 14 is provided with a hollow opening, and the surface of the fixing rod 14 is provided with an integrated carving external thread, so that the surface area of the fixing rod 14 can be increased due to the design of the external thread, meanwhile, the fixing rod 14 is more comprehensively and fully contacted with the slurry, and a good reinforcing effect is achieved;

it is worth mentioning that, for welded connection between reinforcement dish 15 and the dead lever 14, metal prick 16 is at the bottom evenly distributed of reinforcement dish 15, like this when dead lever 14 gets into and struts 1 notch of the slope body, can make the metal prick 16 of reinforcement dish 15 bottom get into and strut 1 insidely of the slope body hard to tentatively fix, made things convenient for the stability when fixed disk 3 and fixed pedestal 2 install.

The principle of use of the utility model will now be described as follows:

when the utility model is used, firstly the threaded hollow rod 5 can be rotated according to the required length before installation, the length of the external part of the anchor rod is adjusted, the applicability of the anchor rod is improved, after the adjustment is finished, the reinforcing sleeve 6 can be installed on the threaded hollow rod 5, then the reinforcing sleeve 6 and the outer rod body 4 are adhered and fixed well by using the adhesive, the connection stability between the threaded hollow rod 5 and the outer rod body 4 is enhanced, the utility model is very useful, after the threaded hollow rod 5 is adjusted, the supporting block 7 and the outer rod body 4 are connected well, then the bolt clamping block 9 is clamped to the fixed disc 3 through the adapter rod 8, and then the bolt is used for reinforcement, so that the adapter rod 8 can play a good supporting effect on the outer rod body 4, the outer rod body 4 is prevented from being accidentally broken, then when the fixed rod 14 enters the notch of the supporting slope body 1, the metal cone 16 at the bottom end of the reinforcing disc 15 can forcibly enter the slope supporting body 1, thereby tentatively fix, stability when having made things convenient for fixed disk 3 and the installation of fixed pedestal 2, use the bolt with fixed disk 3 with fixed pedestal 2 fixed good can, sealed pad 10 can play the effect of strengthening the leakproofness this moment, prevent that the thick liquid from leaking outward, leak protection piece 12 also can play the effect that blocks leak protection simultaneously, play fine guard action, after the slip casting begins at last, the thick liquid passes through outer body of rod 4 and screw thread cavity pole 5 and gets into in built-in rod 11, get into out by built-in rod 11 again on the thick liquid head 13, at last from the circular perforation outflow on the thick liquid head 13, because the action of gravity, the thick liquid can flow to the stock bottom preferentially, finally fill the notch, the condition of having avoided bottom to go out the thick liquid jam takes place.

In the present invention, unless otherwise specifically stated or limited, the terms "sliding", "rotating", "fixed", "provided", and the like are to be understood broadly, and may be, for example, welded, bolted, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a subway station foundation ditch convolution type steel pipe support stock, includes and struts the slope body (1), its characterized in that, fixedly connected with solid fixed pedestal (2) on strutting the slope body (1), be connected with fixed disk (3) on solid fixed pedestal (2), be connected with outer body of rod (4) on fixed disk (3), be connected with screw thread hollow rod (5) on outer body of rod (4), be connected with on screw thread hollow rod (5) and reinforce set (6), be equipped with supporting shoe (7) on the outer body of rod (4), supporting shoe (7) are connected with bolt fixture block (9) through adapter rod (8), the bottom surface of fixed disk (3) is equipped with sealed pad (10), built-in pole (11) is equipped with to the bottom of fixed disk (3), be connected with leak protection piece (12) on built-in pole (11), the bottom of built-in pole (11) is connected with out thick liquid head (13), the bottom of the pulp outlet head (13) is connected with a fixing rod (14), the bottom of the fixing rod (14) is connected with a reinforcing disc (15), and the bottom of the reinforcing disc (15) is provided with a metal prick (16).

2. The anchor rod for the gyrating steel tube support of the foundation pit of the subway station as claimed in claim 1, wherein the threaded hollow rod (5) and the outer rod body (4) are in threaded connection and are both hollow structures, and the reinforcing sleeve (6) is in threaded connection with the threaded hollow rod (5) and is adhesively connected with the outer rod body (4).

3. The foundation pit rotary steel pipe support anchor rod of the subway station as claimed in claim 1, wherein said supporting block (7) is connected with said outer rod body (4) by a groove, said supporting block (7) is connected with said adapter rod (8) in a rotary manner, said adapter rod (8) is welded to said bolt block (9), and said bolt block (9) is connected with said fixed plate (3) by a bolt.

4. The gyrating steel pipe support anchor rod for a subway station foundation pit according to claim 1, wherein the sealing gasket (10) is adhesively connected with the bottom surface of the fixed plate (3), the built-in rod (11) is of an inner hollow structure and is communicated with the outer rod body (4), and the outer diameter of the leakage-proof block (12) is the same as the inner diameter of the groove openings formed in the support slope body (1) and the fixed pedestal (2).

5. The anchor rod for the gyrating steel pipe support of the foundation pit of the subway station as claimed in claim 1, wherein the grout outlet head (13) is connected with the built-in rod (11) and the fixing rod (14) in an open hole manner, and the grout outlet head (13) is provided with circular through holes which are uniformly distributed.

6. The gyrating steel pipe support anchor rod for a subway station foundation pit as claimed in claim 1, wherein the fixing rod (14) is of solid construction design and has a hollow opening at the top end, and the surface of the fixing rod (14) is provided with an integrally engraved external thread.

7. The gyrating steel tube support anchor rod for a subway station foundation pit according to claim 1, wherein the reinforcing plate (15) is welded to the fixing rod (14), and the metal pricks (16) are uniformly distributed at the bottom of the reinforcing plate (15).