CN214328855U

CN214328855U - Grouting anchor rod

Info

Publication number: CN214328855U
Application number: CN202120494656.9U
Authority: CN
Inventors: 司达志; 刘月文; 郭学芹; 吕强飞; 李晓晓; 刘娟; 褚星慧
Original assignee: Beijing Tongchengda Water Construction Co ltd
Current assignee: Beijing Tongchengda Water Construction Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-10-01
Anticipated expiration: 2031-03-08

Abstract

The application relates to a grouting anchor rod, which belongs to the field of engineering support and comprises a hollow rod body, a drill bit arranged at the front end of the rod body, and a grout stop plug, a supporting plate and a fastening nut which are sequentially arranged at the tail end of the rod body, wherein the rod body comprises a plurality of hollow rod sections which are sequentially butted end to end; an external spline shaft is arranged on one rod section between two adjacent rod sections, an internal spline sleeve is arranged on the other rod section, and the external spline shaft and the internal spline sleeve are in spline connection; a through hole communicated with the inside of the rod section is formed in the outer spline shaft; and a locking structure for locking the relative position of the adjacent rod sections when the spline of the external spline shaft and the spline of the internal spline housing is in a connection state is also arranged between the adjacent rod sections. This application has the length that can confirm used stock according to actual conditions, reduces the effect of the waste of stock material in the work progress.

Description

Grouting anchor rod

Technical Field

The application relates to the field of engineering support, in particular to a grouting anchor rod.

Background

Protection and treatment of reservoirs, river banks, mountains, road slopes and the like are attracting more and more attention. The grouting anchor rod is mostly adopted to reinforce the side slope in the process of protecting and treating the side slope, and the pressure grouting of the hollow anchor rod body can achieve the aims of consolidating broken rock bodies, improving rock bodies, blocking underground water and preventing corrosion of the rod body, thereby achieving the good supporting purpose.

Aiming at the related technologies, the inventor thinks that in the construction process, due to the influence of factors such as special geological conditions, construction equipment and improper operation of workers, the phenomena such as hole collapse and surrounding rock deformation are often caused, the installation of the anchor rod is hindered, the anchor rod is easily blocked in the process of not achieving the fixed anchoring length, and finally, redundant rod bodies have to be sawed, so that the anchoring effect is influenced, and meanwhile, a large amount of anchor rod materials are wasted, so that the construction cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to confirm the length of used stock according to actual conditions, reduce the waste of stock material in the work progress, this application provides a slip casting stock.

The application provides a slip casting stock adopts following technical scheme:

a grouting anchor rod comprises a hollow rod body, a drill bit arranged at the front end of the rod body, a grout stop plug, a supporting plate and a fastening nut, wherein the grout stop plug, the supporting plate and the fastening nut are sequentially arranged at the tail end of the rod body;

an external spline shaft is arranged on one rod section between two adjacent rod sections, an internal spline sleeve is arranged on the other rod section, and the external spline shaft and the internal spline sleeve are in spline connection;

A through hole communicated with the inside of the rod section is formed in the outer spline shaft;

and a locking structure for locking the relative position of the adjacent rod sections when the spline of the external spline shaft and the spline of the internal spline housing is in a connection state is also arranged between the adjacent rod sections.

By adopting the technical scheme, the number of the required rod sections can be determined according to actual conditions, then the rod sections are sequentially connected through splines between the outer spline shaft and the inner spline sleeve, finally the relative positions between the adjacent rod sections are locked through the locking structure, and finally the grouting anchor rod with the required length is spliced.

Optionally, the outer side of the inner spline housing is provided with an external thread, the locking structure comprises a connecting lock sleeve sleeved outside the outer spline shaft, the connecting lock sleeve is rotationally connected with the outer spline shaft, and the connecting lock sleeve can be in threaded connection with the inner spline housing.

By adopting the technical scheme, the connecting lock sleeve is in threaded connection with the inner spline sleeve, so that the inner spline sleeve and the outer spline shaft can be quickly locked, and the locking of the relative positions between the adjacent rod sections is realized.

Optionally, the outside surface of external spline axle is provided with the installation blind hole, the jack has been seted up on the mantle wall of internal spline cover, the external spline axle inserts during the internal spline cover is inside, the installation blind hole with the jack is relative, locking structure is including being located the installation blind hole and can inserting joint post in the jack, be provided with the elastic component between the hole bottom of joint post and installation blind hole, the elastic component links to each other with the hole bottom of installation blind hole and joint post are fixed respectively, when the elastic component is in free state, the joint post stretches out from the drill way of installation blind hole, when the elastic component is in by the compression state, the joint post is taken in the installation blind hole.

Through adopting above-mentioned technical scheme, when butt-jointing two adjacent pole sections, at first align installation blind hole and jack, insert the internal spline axle with the external spline axle in, move to relative condition when installation blind hole and jack, lie in the joint post bullet of installation blind hole and go into the jack to lock external spline axle and internal spline axle.

Optionally, a fixed hole is formed in the outer side surface of the outer spline shaft, a threaded hole is formed in the side wall of the inner spline housing, the outer spline shaft is inserted into the inner spline housing, the threaded hole is opposite to the fixed hole, the locking structure comprises a locking bolt in the threaded hole in a threaded connection mode, and the locking bolt can be inserted into the fixed hole.

Through adopting above-mentioned technical scheme, when butt-jointing adjacent rod section, align the position of fixed orifices and screw hole, then insert the inside of internal spline cover with the external spline axle, when the fixed orifices removed to the position department relative with the screw hole, rotated locking bolt, made locking bolt insert in the fixed orifices, can accomplish the locking between external spline axle and the internal spline cover.

Optionally, a grout outlet is formed in the side wall of the front end of each rod section.

Through adopting above-mentioned technical scheme, when using the slip casting stock to carry out high-pressure slip casting, the thick liquid that enters into in the rod festival can be discharged from the grout outlet, because every rod festival all is provided with the grout outlet to make the axial direction discharge along the slip casting stock that the thick liquid can be even, increase the degree of consistency of slip casting.

Optionally, an elastic blocking piece for sealing the pulp outlet is arranged in the pulp outlet, one end of the elastic blocking piece is fixedly connected with the rod section, and the elastic blocking piece can be bent and deformed under stress.

Through adopting above-mentioned technical scheme, can make soil be difficult for entering into the inside of rod festival and thereby cause the inside jam of rod festival when the slip casting stock is carrying out the drilling process through the elasticity closure strip.

Optionally, an expansion grout stopping ring is arranged at the tail end of each rod section.

Through adopting above-mentioned technical scheme, take place the inflation when the inflation only starch ring meets the thick liquid to at the in-process formation segmentation slip casting's of slip casting effect, thereby the stability of pressure when increasing slip casting.

Optionally, an annular mounting groove is formed in the outer side surface of the tail end of the rod section, and the expansion grout stopping ring is clamped and fixed in the mounting groove.

By adopting the technical scheme, the expansion grout stopping ring is not easy to separate from the rod section.

Optionally, the outer side surface of the rod section is provided with a spiral groove.

Through adopting above-mentioned technical scheme, increase the frictional force between rod festival and the thick liquid to make the inside that is located the rock mass that the rod festival is firm.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the number of the required rod sections can be determined according to actual conditions, then the rod sections are sequentially connected through splines between the external spline shaft and the internal spline sleeve, finally the relative positions of the adjacent rod sections are locked through the locking structure, and finally the grouting anchor rod with the required length is spliced;

2. through set up the elasticity closure piece in grout outlet department, thereby the elasticity closure piece can make the inside that soil is difficult for entering into the rod festival cause the inside jam of rod festival when the slip casting stock is carrying out the drilling process.

Drawings

Fig. 1 is a schematic structural view of a grouting bolt according to a first embodiment of the present application;

fig. 2 is a cross-sectional view of the joint between two adjacent segments in a grouting anchor rod according to the first embodiment of the present invention;

fig. 3 is a schematic structural view of a rod section of a grouting anchor rod according to the first embodiment of the application;

fig. 4 is a schematic structural view of a grouting bolt according to a second embodiment of the present application;

Fig. 5 is a structural schematic view of a grouting bolt according to a third embodiment of the present application.

Description of reference numerals: 1. a rod body; 11. a bar section; 111. mounting grooves; 112. an expansion grout stopping ring; 113. a helical groove; 114. a pulp outlet; 1141. an elastic blocking piece; 115. an external spline shaft; 1151. a through hole; 1152. installing blind holes; 1153. a fixing hole; 116. an inner spline housing; 1161. a jack; 1162. a threaded hole; 12. connecting a lock sleeve; 121. a sleeve body; 122. a connecting ring; 13. a clamping column; 14. compressing the elastic sheet; 15. locking the bolt; 2. a drill bit; 3. a grout stopping plug; 4. a support plate; 5. and (5) tightening the nut.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses slip casting stock.

The first embodiment is as follows:

referring to fig. 1, a grouting bolt includes a hollow rod body 1 and a drill bit 2 installed at a front end of the rod body 1. The tail end that is located the body of rod 1 is located and is installed in proper order and end thick liquid stopper 3, layer board 4 and fastening nut 5, wherein end thick liquid stopper 3 and layer board 4 and all suit in the outside of the body of rod 1 and with the body of rod 1 slip continuous. The fastening nut 5 is sleeved outside the rod body 1 and is in threaded connection with the rod body 1.

The rod body 1 comprises a plurality of hollow rod sections 11 which are sequentially butted end to end, and the adjacent rod sections 11 are connected by a spline and fixed together through a locking structure. The adjacent bar sections 11 are communicated with each other. The drill bit 2 is arranged on the rod section 11 positioned at the most front end, and the grout stop plug 3, the supporting plate 4 and the fastening nut 5 are arranged on the rod section 11 positioned at the most rear end.

The outside surface that is located the tail end department of middle pole section 11 has all been seted up annular mounting groove 111, and the thick liquid ring 112 is only stopped in the inside annular inflation of all the sticking nature of mounting groove 111, and thick liquid ring 112 is only stopped in the inflation and meets water and take place the inflation.

The outer side surface of each rod section 11 is provided with a right spiral groove 113, and the spiral groove 113 is arranged along the axial direction of the rod section 11. A grout outlet 114 is arranged on the side wall of the front end of each rod section 11 and is used for communicating the inside of the rod section 11 with the outside. Through the outlet port 114 so that the slurry can be discharged from the outlet port 114. Each grout outlet 114 is provided with an elastic blocking piece 1141 capable of closing the grout outlet 114, and one end of the elastic blocking piece 1141 is fixedly connected with the rod section 11. The elastic blocking piece 1141 can be bent and deformed when receiving an external force.

When using the slip casting stock to carry out pressure slip casting, the thick liquid enters into the inside of rod festival 11 and applys from the inside outside thrust of rod festival 11 to elasticity jam piece 1141, and elasticity jam piece 1141 outwards takes place to warp under the effect of thrust. When the elastic blocking piece 1141 deforms outwards, the grout outlet 114 can be opened, so that grout can be sprayed out of the rod section 11.

Referring to fig. 2 and 3, an external spline shaft 115 which is coaxial with the rod section 11 is arranged on one rod section 11 between two adjacent rod sections 11, and the external spline shaft 115 is welded and fixed with the rod section 11. The male spline shaft 115 has a through hole 1151 formed along the axis of the male spline shaft 115, and communicates with the inside of the bar segment 11 through the through hole 1151. The other rod section 11 is provided with an inner spline housing 116 which is coaxial with the rod section 11, and the inner spline housing 116 is matched with the outer spline shaft 115. The internal spline housing 116 is integrally formed with the rod section 11. The axial length of the male spline shaft 115 is longer than the axial length of the female spline housing 116. When adjoining two rod segments 11, the male spline shaft 115 is inserted into the inside of the female spline housing 116 to achieve spline coupling between the male spline shaft 115 and the female spline housing 116.

The locking structure comprises a connecting lock sleeve 12 which is sleeved outside the external spline shaft 115 and is positioned at one end of the external spline shaft 115 close to the connected rod joint 11, the connecting lock sleeve 12 comprises a sleeve body 121 with an internal thread on the inner hole wall, and a connecting ring 122 which connects the sleeve body 121 and the external spline shaft 115 together, wherein the connecting ring 122 and the sleeve body 121 are integrally formed, and the connecting ring 122 is sleeved on the external spline shaft 115 and is rotationally connected with the external spline shaft 115.

The outer side surface of the inner spline housing 116 is provided with an external thread, and the external thread on the outer side surface of the inner spline housing 116 is matched with the internal thread on the inner hole wall of the housing body 121, so that the housing body 121 can be connected with the inner spline housing 116 in a threaded manner.

The implementation principle of a slip casting stock of this application embodiment does: when connecting adjacent bar sections 11 together, the end of the male spline shaft 115 remote from the connected bar section 11 is first inserted into the male spline shaft 115, and the coupler lock sleeve 12 and the female spline sleeve 116 are screwed together when the coupler lock sleeve 12 abuts against the female spline sleeve 116. The connecting lock sleeve 12 is moved toward the end of the internally splined sleeve 116 close to the connected rod segment 11 by rotating the connecting lock sleeve 12, and the externally splined shaft 115 is driven to be continuously inserted into the internally splined sleeve 116 along with the continuous movement of the connecting lock sleeve 12, so that the butt joint and locking of the adjacent rod segments 11 are completed.

Example two:

the second embodiment differs from the first embodiment in the locking structure for locking the male spline shaft 115 and the female spline housing 116.

Referring to fig. 4, a blind mounting hole 1152 is formed on the outer surface of the male spline shaft 115. The locking structure includes the joint post 13 that is located inside installation blind hole 1152 and with installation blind hole 1152 sliding connection, is provided with compression shell fragment 14 between the hole bottom of joint post 13 and installation blind hole 1152, and compression shell fragment 14 is fixed continuous with the hole bottom wallboard and the joint post 13 of installation blind hole 1152 respectively. When the compression spring 14 is in a free state, one end of the clamping column 13 is located inside the installation blind hole 1152, and the other end of the clamping column extends out of the hole opening of the installation blind hole 1152. The end of the clamping column 13 far away from the mounting blind hole 1152 is of a ball head structure. When the compression spring 14 is in a compressed state, the snap-in posts 13 are completely retracted into the mounting blind holes 1152.

The sleeve wall of the inner spline sleeve 116 is provided with a jack 1161, and the aperture of the jack 1161 enables the clamping column 13 to be inserted into the jack 1161. When the male spline shaft 115 is inserted inside the female spline housing 116, the blind mounting hole 1152 is coaxially opposed to the insertion hole 1161, and the end of the snap-fit column 13 protruding from the opening of the blind mounting hole 1152 is inserted into the insertion hole 1161, thereby locking the female spline housing 116 and the male spline shaft 115.

The implementation principle of the slip casting stock of this application embodiment: when the adjacent rod sections 11 are butted, the blind mounting holes 1152 on the external spline shaft 115 are opposite to the insertion holes 1161 on the internal spline housing 116, then the external spline shaft 115 is inserted into the internal spline housing 116, and when the blind mounting holes 1152 are moved to be coaxially opposite to the insertion holes 1161, the clamping columns 13 in the blind mounting holes 1152 are inserted into the insertion holes 1161 under the action of the compression spring pieces 14, so that the external spline shaft 115 and the internal spline housing 116 are quickly locked.

Example three:

the third embodiment differs from the first embodiment in the locking structure for locking the male spline shaft 115 and the female spline housing 116.

Referring to fig. 5, a fixing hole 1153 is formed on the outer surface of the male spline shaft 115. A threaded hole 1162 is formed in the side wall of the internally splined sleeve 116. Threaded hole 1162 is opposite to securing hole 1153 when male spline shaft 115 is inserted inside female spline housing 116. The locking structure includes a locking bolt 15 located in the threaded hole 1162 and threadedly coupled to the threaded hole 1162, and an end of the locking bolt 15 facing the internal bore of the internally splined hub 116 is insertable into the interior of the fixing hole 1153.

The implementation principle of a slip casting stock of this application embodiment does: when the adjacent bar sections 11 are butted together, the fixing hole 1153 of the male spline shaft 115 and the threaded hole 1162 of the female spline housing 116 are first butted against each other, the male spline shaft 115 is inserted into the female spline housing 116, and when the fixing hole 1153 is moved to a position opposite to the threaded hole 1162, the locking bolt 15 is inserted into the fixing hole 1153 by rotating the locking bolt 15, and the locking of the male spline shaft 115 and the female spline housing 116 is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a slip casting stock, includes the hollow body of rod (1), installs drill bit (2) of the body of rod (1) front end and install in proper order and end thick liquid stopper (3), layer board (4) and fastening nut (5), its characterized in that at the body of rod (1) tail end: the rod body (1) comprises a plurality of hollow rod sections (11) which are sequentially butted end to end;

between two adjacent rod sections (11), one rod section (11) is provided with an external spline shaft (115), the other rod section (11) is provided with an internal spline sleeve (116), and the external spline shaft (115) and the internal spline sleeve (116) are in spline connection;

a through hole (1151) communicated with the inside of the rod section (11) is formed in the outer spline shaft (115);

and a locking structure for locking the relative position of the adjacent rod sections (11) when the external spline shaft (115) and the internal spline sleeve (116) are in a spline connection state is also arranged between the adjacent rod sections (11).

2. A grouting bolt according to claim 1, characterised in that: the outside of internally splined sleeve (116) is provided with the external screw thread, locking structure is in including the suit the outside connection lock cover (12) of external splined shaft (115), connect lock cover (12) with external splined shaft (115) rotate and link to each other, connect lock cover (12) can with thread connection between internally splined sleeve (116).

3. A grouting bolt according to claim 1, characterised in that: the outer side surface of the external spline shaft (115) is provided with a blind mounting hole (1152), the sleeve wall of the internal spline sleeve (116) is provided with an insertion hole (1161), when the external spline shaft (115) is inserted into the internal spline housing (116), the installation blind hole (1152) is opposite to the insertion hole (1161), the locking structure comprises a clamping column (13) which is positioned in the mounting blind hole (1152) and can be inserted into the jack (1161), an elastic piece is arranged between the clamping column (13) and the bottom of the mounting blind hole (1152), the elastic piece is respectively and fixedly connected with the bottom of the mounting blind hole (1152) and the clamping column (13), when the elastic piece is in a free state, the clamping column (13) extends out of the hole opening of the mounting blind hole (1152), when the elastic piece is in a compressed state, the clamping column (13) is received in the mounting blind hole (1152).

4. A grouting bolt according to claim 1, characterised in that: fixing hole (1153) have been seted up on the outside surface of external spline shaft (115), threaded hole (1162) have been seted up on the lateral wall of internal spline cover (116), external spline shaft (115) insert when internal spline cover (116) are inside, threaded hole (1162) with fixing hole (1153) are relative, locking structure includes threaded connection locking bolt (15) in threaded hole (1162), locking bolt (15) can insert in fixing hole (1153).

5. A grouting bolt according to claim 1, characterised in that: the side wall of the front end of each rod section (11) is provided with a grout outlet (114).

6. A grouting bolt according to claim 5, characterized in that: an elastic blocking piece (1141) for sealing the grout outlet (114) is arranged in the grout outlet (114), one end of the elastic blocking piece (1141) is fixedly connected with the rod section (11), and the elastic blocking piece (1141) can be bent and deformed under stress.

7. A grouting bolt according to claim 5, characterized in that: the tail end of each rod section (11) is provided with an expansion grout stopping ring (112).

8. A grouting bolt according to claim 7, characterized in that: the outer side surface of the tail end of the rod section (11) is provided with an annular mounting groove (111), and the expansion grout stopping ring (112) is clamped and fixed in the mounting groove (111).

9. A grouting bolt according to claim 1, characterised in that: the outer side surface of the rod section (11) is provided with a spiral groove (113).