CN208605213U - A kind of concertina type grouted anchor bar - Google Patents
A kind of concertina type grouted anchor bar Download PDFInfo
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- CN208605213U CN208605213U CN201821413975.7U CN201821413975U CN208605213U CN 208605213 U CN208605213 U CN 208605213U CN 201821413975 U CN201821413975 U CN 201821413975U CN 208605213 U CN208605213 U CN 208605213U
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Abstract
The utility model discloses a kind of concertina type grouted anchor bars, including outer bar, the top exterior walls of the outer bar offer connecting cavity, and the top exterior walls of outer bar are welded with fixed plate, connecting hole is offered at the top of the fixed plate, and the circumferential inner wall of connecting hole slidably connects inner tube, mounting disc and fixed disk are respectively welded at the top and bottom of said inner tube outer circumferential walls, and welded between mounting disc and fixed disk there are four the connecting spring placed vertically, it is circular limit plate that the top and bottom of connecting cavity circumferential inner wall, which pass through bolt to be equipped with cross section,.In the utility model, it is slided between inner tube and outer bar by mounting disc and fixed disk, to which inner tube can carry out telescopic slide along the inside of outer bar, and connecting spring is provided between mounting disc and fixed disk, when power of the inner tube by drawing, inner tube is slided in outer bar, converts part stress to the deformation of connecting spring, to reduce fixed plate and stress between the walls.
Description
Technical field
The utility model relates to grouted anchor bar technical field more particularly to a kind of concertina type grouted anchor bars.
Background technique
Anchor pole is the most basic constituent of the roadway supports such as coal mine or tunnel, and anchor pole is by the surrounding rock consolidation in tunnel one
It rises, as the intensity and depth of Development of Underground Engineering increasingly increase, the requirement of roadway support is also higher and higher, and grouted anchor bar is gradually
Traditional anchor pole is banned, the anchor bar body of grouted anchor bar uses hollow design, and body of rod mesoporous is as drilling high-pressure blast aquaporin and note
Channel is starched, compared with the solid body of rod, hollow lever design can get better rigidity and shearing strength.
Grouted anchor bar used at present is mostly single lever-type, and one end is that drill bit shape is put in anchor hole, and the other end passes through fixation
Plate is fixed with wall, and in Bracing Process, over time, the anchored end of fixed plate can gradually fail, and uses
Service life and using effect can reduce, and influence its supporting effect.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of concertina type slip casting proposed
Anchor pole.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of concertina type grouted anchor bar, including outer bar, the top exterior walls of the outer bar offer connecting cavity, and the top of outer bar
Portion's outer wall is welded with fixed plate, connecting hole is offered at the top of the fixed plate, and the circumferential inner wall of connecting hole slidably connects
Inner tube, is respectively welded mounting disc and fixed disk at the top and bottom of said inner tube outer circumferential walls, and mounting disc and fixed disk it
Between welding there are four the connecting spring placed vertically, the top and bottom of connecting cavity circumferential inner wall pass through bolt be equipped with it is transversal
Face is circular limit plate, and one end of the mounting disc top exterior walls is welded with the mounting rod placed vertically, and at the top of fixed disk
Outer wall is welded with the fixed link placed vertically far from one end of mounting rod, and the bottom of said inner tube outer circumferential walls offers equidistant
The injected hole of distribution, and the bottom outer wall of inner tube is equipped with drill bit by bolt, the top exterior walls of the drill bit are welded with limit
Cylinder, and the bottom of position-limiting drum outer circumferential walls offers the through-hole equidistantly distributed.
Preferably, the top of said inner tube outer circumferential walls is threaded with capping.
Preferably, the middle position of the limit plate top exterior walls offers slide opening, and the both ends of limit plate top exterior walls
Mounting hole is offered, the both ends of fixed plate top exterior walls offer fixation hole.
Preferably, the circumferential inner wall of the slide opening and the outer circumferential walls of inner tube are slidably connected, the outer circumferential walls point of mounting rod
Be not slidably connected with the circumferential inner wall of corresponding mounting hole and fixation hole, the outer circumferential walls of fixed link respectively with it is corresponding
Mounting hole and the circumferential inner wall of fixation hole be slidably connected.
Preferably, the mounting disc top exterior walls offer limit hole, and the circumference of limit hole close to one end of fixed link
The outer circumferential walls of inner wall and fixed link are slidably connected.
Preferably, the top exterior walls of the drill bit offer wears groove, and the bottom interior wall of wears groove offers link slot, connection
The both ends of slot and two sides inner wall offer perforation.
Preferably, the bottom end of the position-limiting drum outer circumferential walls is welded with horizontal positioned connection ring, and the top of connection ring
The convex block of honeycomb structure is provided with bottom outer wall, the top and bottom outer wall of connection ring offers honeycomb structure respectively
Groove.
The utility model has the following beneficial effects:
1, it is provided with connecting cavity and inner tube socket in outer bar, is carried out using inner tube from injected hole, perforation and through-hole to bottom
Slided between the connecting cavity of slip casting, inner tube and outer bar by mounting disc and fixed disk, thus inner tube can along connecting cavity into
Row telescopic slide, and connecting spring is provided between mounting disc and fixed disk, when power of the inner tube by drawing, inner tube is being connected
Intracavitary sliding, converts part stress to the deformation of connecting spring, to reduce fixed plate and stress between the walls, extends note
The service life of anchor pole is starched, it is safe and reliable.
2, it is separately installed with mounting rod and fixed link at the top of mounting disc and fixed disk, it is fixed when inner tube slide downward
Disk is limited plate and limits, and mounting disc slide downward, connecting spring is compressed, and mounting rod declines therewith, when inner tube upward sliding
When, mounting disc is limited plate and limits, and fixed disk upward sliding, connecting spring is compressed, and fixed link rises with it, so as to benefit
The flexible situation of inner tube is checked with mounting rod and fixed link, it is easy to use to be modified in time.
3, the drill bit and position-limiting drum of bottom of inner tube are fixed, and position-limiting drum bottom is provided with connection ring, connection ring top and bottom
Be provided with the convex block and groove of honeycomb structure, convex block can groove be spaced apart, top and convex block are opposite with the groove of bottom
It answers, to make slurries fix with connection ring after slip casting, the convex block and groove of hemispherical configuration increase the contact area with slurries,
To increasing friction force, the stability of grouted anchor bar is improved.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of concertina type grouted anchor bar overall structure diagram；
Fig. 2 be the utility model proposes a kind of concertina type grouted anchor bar outer bar side structure schematic view；
Fig. 3 be the utility model proposes a kind of concertina type grouted anchor bar connection ring overlooking structure diagram.
In figure: 1 outer bar, 2 fixed plates, 3 inner tubes, 4 cappings, 5 mounting discs, 6 fixed disks, 7 connecting springs, 8 mounting rods, 9 are consolidated
Fixed pole, 10 limit plates, 11 slide openings, 12 injected holes, 13 drill bits, 14 link slots, 15 perforation, 16 position-limiting drums, 17 through-holes, 18 connections
Ring, 19 convex blocks, 20 grooves.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, a kind of concertina type grouted anchor bar, including outer bar 1, the top exterior walls of outer bar 1 offer connecting cavity, and
The top exterior walls of outer bar 1 are welded with horizontal positioned fixed plate 2, and the top of fixed plate 2 offers connecting hole, and the circle of connecting hole
All inner walls slidably connect inner tube 3, and horizontal positioned 5 He of mounting disc is respectively welded at the top and bottom of 3 outer circumferential walls of inner tube
Fixed disk 6, and welded between mounting disc 5 and fixed disk 6 there are four the connecting spring 7 placed vertically, connecting cavity circumferential inner wall
It is circular limit plate 10 that top and bottom, which pass through bolt to be equipped with cross section, the outer circumferential walls of mounting disc 5 and fixed disk 6 with
The circumferential inner wall of connecting cavity is slidably connected, and four 7 circular array of connecting spring distributions, one end of 5 top exterior walls of mounting disc
It is welded with the mounting rod 8 placed vertically, and 6 top exterior walls of fixed disk are welded with consolidating of placing vertically far from one end of mounting rod 8
Fixed pole 9, the bottom of 3 outer circumferential walls of inner tube offers the injected hole 12 equidistantly distributed, and the bottom outer wall of inner tube 3 passes through bolt
Drill bit 13 is installed, the top exterior walls of drill bit 13 are welded with position-limiting drum 16, and the bottom of 16 outer circumferential walls of position-limiting drum offers
The through-hole 17 of range distribution.
In the utility model, the top of 3 outer circumferential walls of inner tube is threaded with capping 4, in 10 top exterior walls of limit plate
Between position offer slide opening 11, and the both ends of 10 top exterior walls of limit plate offer mounting hole, the two of 2 top exterior walls of fixed plate
End offers fixation hole, and the circumferential inner wall of slide opening 11 and the outer circumferential walls of inner tube 3 are slidably connected, the outer circumferential walls of mounting rod 8
The circumferential inner wall with corresponding mounting hole and fixation hole is slidably connected respectively, the outer circumferential walls of fixed link 9 respectively and and its
The circumferential inner wall of corresponding mounting hole and fixation hole is slidably connected, and 5 top exterior walls of mounting disc are offered close to one end of fixed link 9
Limit hole, and the circumferential inner wall of limit hole and the outer circumferential walls of fixed link 9 are slidably connected, the top exterior walls of drill bit 13, which offer, wears
Slot, and the bottom interior wall of wears groove offers link slot 14, the both ends of link slot 14 and two sides inner wall offer perforation 15, limit
The bottom end of 16 outer circumferential walls of cylinder is welded with horizontal positioned connection ring 18, and the top and bottom outer wall of connection ring 18 is provided with bee
The top and bottom outer wall of the convex block 19 of nest shape structure, connection ring 18 offers the groove 20 of honeycomb structure, convex block 19 respectively
It is in be spaced apart between groove 20.
Working principle: slip casting, inner tube 3 and outer bar are carried out from injected hole 12, perforation 15 and through-hole 17 to bottom using inner tube 3
It is slided between 1 by mounting disc 5 and fixed disk 6, so that inner tube 3 can carry out telescopic slide along the inside of outer bar 1, when interior
When power of the pipe 3 by drawing, inner tube 3 is slided in outer bar 1, part stress is converted to the deformation of connecting spring 7, to reduce
The top of fixed plate 2 and stress between the walls, mounting disc 5 and fixed disk 6 is separately installed with mounting rod 8 and fixed link 9, when interior
When 3 slide downward of pipe, fixed disk 6 is limited plate 10 and limits, and 5 slide downward of mounting disc, connecting spring 7 is compressed, mounting rod 8
Decline therewith, when 3 upward sliding of inner tube, mounting disc 5 is limited plate 10 and limits, 6 upward sliding of fixed disk, connecting spring 7
It is compressed, fixed link 9 rises with it, and so as to check the flexible situation of inner tube 3 using mounting rod 8 and fixed link 9, makes after slip casting
Slurries and connection ring 18 are fixed, and hemispherical configuration convex block 19 and groove 20 increase being spaced apart in connection ring 18 connect with slurries
Contacting surface product, thus increasing friction force.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. a kind of concertina type grouted anchor bar, including outer bar (1), which is characterized in that the top exterior walls of the outer bar (1) offer company
Chamber is connect, and the top exterior walls of outer bar (1) are welded with fixed plate (2), connecting hole is offered at the top of the fixed plate (2), and even
The circumferential inner wall for connecing hole slidably connects inner tube (3), is respectively welded installation at the top and bottom of said inner tube (3) outer circumferential walls
Disk (5) and fixed disk (6), and welded between mounting disc (5) and fixed disk (6) there are four the connecting spring (7) placed vertically, connect
It is circular limit plate (10), the mounting disc that the top and bottom for connecing chamber circumferential inner wall, which pass through bolt to be equipped with cross section,
(5) one end of top exterior walls is welded with the mounting rod (8) placed vertically, and fixed disk (6) top exterior walls are far from mounting rod (8)
One end is welded with the fixed link (9) placed vertically, and the bottom of said inner tube (3) outer circumferential walls offers the slip casting equidistantly distributed
Hole (12), and the bottom outer wall of inner tube (3) is equipped with drill bit (13) by bolt, the top exterior walls of the drill bit (13) are welded with
Position-limiting drum (16), and the bottom of position-limiting drum (16) outer circumferential walls offers the through-hole (17) equidistantly distributed.
2. a kind of concertina type grouted anchor bar according to claim 1, which is characterized in that said inner tube (3) outer circumferential walls
Top is threaded with capping (4).
3. a kind of concertina type grouted anchor bar according to claim 1, which is characterized in that limit plate (10) top exterior walls
Middle position offer slide opening (11), and the both ends of limit plate (10) top exterior walls offer mounting hole, fixed plate (2) top
The both ends of portion's outer wall offer fixation hole.
4. a kind of concertina type grouted anchor bar according to claim 3, which is characterized in that the circumferential inner wall of the slide opening (11)
Be slidably connected with the outer circumferential walls of inner tube (3), the outer circumferential walls of mounting rod (8) respectively with corresponding mounting hole and fixation hole
Circumferential inner wall be slidably connected, the outer circumferential walls of fixed link (9) are respectively and in the circumference of corresponding mounting hole and fixation hole
Wall is slidably connected.
5. a kind of concertina type grouted anchor bar according to claim 1, which is characterized in that mounting disc (5) top exterior walls
Limit hole is offered close to the one end of fixed link (9), and the outer circumferential walls of the circumferential inner wall of limit hole and fixed link (9) are slided and connected
It connects.
6. a kind of concertina type grouted anchor bar according to claim 1, which is characterized in that the top exterior walls of the drill bit (13)
Wears groove is offered, and the bottom interior wall of wears groove offers link slot (14), the both ends of link slot (14) and two sides inner wall open up
There are perforation (15).
7. a kind of concertina type grouted anchor bar according to claim 1, which is characterized in that position-limiting drum (16) outer circumferential walls
Bottom end be welded with horizontal positioned connection ring (18), and the top and bottom outer wall of connection ring (18) is provided with honeycomb structure
Convex block (19), the top and bottom outer wall of connection ring (18) offers the groove (20) of honeycomb structure respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821413975.7U CN208605213U (en) | 2018-08-30 | 2018-08-30 | A kind of concertina type grouted anchor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821413975.7U CN208605213U (en) | 2018-08-30 | 2018-08-30 | A kind of concertina type grouted anchor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208605213U true CN208605213U (en) | 2019-03-15 |
Family
ID=65681085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821413975.7U Active CN208605213U (en) | 2018-08-30 | 2018-08-30 | A kind of concertina type grouted anchor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208605213U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006708A (en) * | 2021-02-20 | 2021-06-22 | 山东大学 | Slurry unidirectional flow drilling and grouting integrated drill rod and construction method |
| CN114033426A (en) * | 2021-11-02 | 2022-02-11 | 辽宁工程技术大学 | Self-drilling type single-liquid and double-liquid grouting reinforcement device and using method |
-
2018
- 2018-08-30 CN CN201821413975.7U patent/CN208605213U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006708A (en) * | 2021-02-20 | 2021-06-22 | 山东大学 | Slurry unidirectional flow drilling and grouting integrated drill rod and construction method |
| CN114033426A (en) * | 2021-11-02 | 2022-02-11 | 辽宁工程技术大学 | Self-drilling type single-liquid and double-liquid grouting reinforcement device and using method |
| CN114033426B (en) * | 2021-11-02 | 2024-04-19 | 辽宁工程技术大学 | Self-drilling single-double grouting reinforcement device and use method |
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