CN108868849B - Safety anchor rod - Google Patents
Safety anchor rod Download PDFInfo
- Publication number
- CN108868849B CN108868849B CN201810869287.XA CN201810869287A CN108868849B CN 108868849 B CN108868849 B CN 108868849B CN 201810869287 A CN201810869287 A CN 201810869287A CN 108868849 B CN108868849 B CN 108868849B
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- China
- Prior art keywords
- block
- guide
- guide groove
- groove
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0093—Accessories
Abstract
The invention belongs to the technical field of anchor rods, and particularly relates to a safe anchor rod which comprises a first operating rod, a base plate, an anchor rod body, an anti-drop chain, an anchor head, a second operating rod, a sliding groove, a grout stopping ring and the like; wherein, the center of the end surface of the anchor rod body is provided with a rotating hole; the end face of the anchor rod body provided with the rotating hole is provided with two operating holes, and the two operating holes are symmetrically distributed relative to the rotating hole; the center of the end face of the anchor rod body is provided with the rotating hole, so that the first operating rod can rotate conveniently; the end face of the anchor rod body provided with the rotating hole is provided with two operating holes, and the two operating holes are symmetrically distributed about the rotating hole to facilitate the second operating rod to push the anti-drop chain; the end surface of the anchor rod body far away from the rotating hole is provided with an accommodating cavity, and the accommodating cavity is communicated with the operating hole and the rotating hole and is used for accommodating the guide rail conveniently; under the effect of anticreep chain, will make the stock be difficult to drop from soil in to reach the stock anti-drop's purpose.
Description
Technical Field
The invention belongs to the technical field of anchor rods, and particularly relates to a safe anchor rod.
Background
At present, the conventional anchor rod is mainly used for supporting a roadway in a coal mine, and the conventional anchor rod reinforces the surrounding rocks of the roadway together to support the surrounding rocks. The existing anchor rod is not only used in mines, but also used in engineering technology to reinforce main bodies of slopes, tunnels and dams. The anchor rod is used as a tension member penetrating into the stratum, one end of the anchor rod is connected with an engineering structure, and the other end of the anchor rod penetrates into the stratum, so that the phenomenon that a side slope slides down is prevented; it is therefore desirable to design a safety bolt.
The invention designs a safe anchor rod to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a safety anchor rod which is realized by adopting the following technical scheme.
A safety anchor rod is characterized in that: the anchor rod comprises a first operating rod, a base plate, an anchor rod body, an anti-drop chain, an anchor head, a second operating rod, a sliding groove, a grout stopping ring, a rotating shaft hole, a first spring, a first guide block, a guide rail, a driving block, a triggering arc plate, a rotating hole, an operating hole, a semicircular groove, a containing cavity, a first fillet, a first guide groove and a second fillet, wherein the center of the end face of the anchor rod body is provided with the rotating hole; the end face of the anchor rod body provided with the rotating hole is provided with two operating holes, and the two operating holes are symmetrically distributed relative to the rotating hole; the end surface of the anchor rod body far away from the rotating hole is provided with an accommodating cavity which is communicated with the operating hole and the rotating hole; two semicircular grooves are symmetrically formed in the two side walls of the accommodating cavity; two sliding grooves are symmetrically formed in the end face, far away from the rotating hole, of the anchor rod body, and the two sliding grooves are communicated with the accommodating cavity; the upper end surfaces of the two sliding grooves are provided with first round corners; the two side walls of the semicircular groove of the accommodating cavity are completely the same in structure, and one of the two groups of first guide grooves is sequentially arranged on the side wall of the accommodating cavity from top to bottom; the two first guide grooves in each group are symmetrically distributed about the rotating hole; the semicircular groove is positioned between the two groups of first guide grooves; the mounting structures of the first guide grooves on one side of the semicircular groove are completely the same, for one of the first guide grooves, two groups of first guide blocks are symmetrically mounted on two side surfaces of the guide rail, and two first guide blocks in each group are symmetrically distributed; the guide rail is arranged in the anchor rod body through the sliding fit of the first guide block and the first guide groove; two ends of the two trigger arc plates are provided with second round corners; the two trigger arc plates are symmetrically arranged on two side walls in the guide rail, and are both positioned at the arc sections in the guide rail; the guide rail is matched with the sliding groove; the guide rail is matched with the operation hole; a first spring is arranged in the first guide groove, one end of the first spring is arranged on the end face of the first guide groove, and the other end of the first spring is arranged on the first guide block; a rotating shaft hole is formed in the end face of the anchor head; the end surface of the anchor head provided with the rotating shaft hole is arranged on the lower end surface of the anchor rod body; anti-drop chains are arranged in the two guide rails; the two second operating rods are respectively arranged in the two operating holes; one end of the first operating rod penetrates through the rotating hole and is arranged in the rotating shaft hole; the driving block is arranged on the outer circular surface of the first operating rod and matched with the two semicircular grooves and the outer walls of the two guide rails; the inner circular surface of the grout stopping ring is arranged on the outer circular surface of the anchor rod body far away from the anchor head; the lower end face of the backing plate is arranged on the upper end face of the grout stopping ring.
The anti-falling chain consists of a plurality of chain link units, and each two adjacent chain link units are connected together through a cylindrical pin; except the first chain link unit and the last chain link unit, the upper structures and the installation structures of other chain link units are completely the same; the link unit penetrating into the soil is defined as the last link unit.
The chain link unit comprises an anti-falling block, a middle lug wheel, a fixed block, a side lug, a first L-shaped limiting block, a second guide block, a second spring, a third spring, a second round hole, a third guide block, a second L-shaped limiting block, a first round hole, a tooth, a first moving groove, a third guide groove, a first guide groove, a second moving groove, a second guide groove, a first inclined block and a second inclined block, wherein the end face of the anti-falling block is provided with the first guide groove; a first moving groove is formed in the side surface, perpendicular to the first guide groove, of the anti-falling block, and the first moving groove is communicated with the first guide groove; the end surface of the first moving groove is provided with a third guide groove; a second guide groove is formed in the end face, opposite to the first guide groove, of the anti-falling block, and the second guide groove is located on the upper side of the first guide groove; a second moving groove is formed in the side face, provided with the first moving groove, of the anti-falling block, and the second moving groove is communicated with the second guide groove; the end surface of the second moving groove is provided with a second guide groove; the end surfaces of the two side lugs are respectively provided with a first through round hole; the two side support lugs are symmetrically arranged on the side surface of the anti-falling block, and the two side support lugs and the first moving groove are positioned on the same side of the anti-falling block; one end of the fixing block is arranged on the side face of the anti-falling block opposite to the side lug; the end surface of the middle lug wheel is provided with a through second round hole; the outer circle surface of one side of the middle lug wheel is arranged on the end surface of the fixed block; a plurality of teeth are uniformly arranged on the circumferential direction of the outer circular surface of the middle lug wheel; the first L-shaped limiting block and the second guide groove are installed in a sliding fit mode, one end of the first L-shaped limiting block extends out of the second moving groove, and the other end of the first L-shaped limiting block extends out of the second guide groove; one end of the second guide block is arranged on the side surface of the first L-shaped limiting block, and the second guide block is in sliding fit with the second guide groove; the second spring is positioned in the second guide groove, one end of the second spring is arranged in the second guide groove, and the other end of the second spring is arranged on the second guide block; one end of the first inclined block is arranged on the end face of one end of the first L-shaped limiting block, which extends out of the second moving groove; the second L-shaped limiting block is installed with the first guide groove in a sliding fit mode, one end of the second L-shaped limiting block extends out of the first moving groove, and the other end of the second L-shaped limiting block extends out of the first guide groove; one end of the third guide block is arranged on the side surface of the second L-shaped limiting block, and the third guide block is in sliding fit with the third guide groove; the third spring is positioned in the third guide groove, one end of the third spring is arranged in the third guide groove, and the other end of the third spring is arranged on the third guide block; one end of the second inclined block is arranged on the end face of one end, extending out of the first moving groove, of the second L-shaped limiting block.
The two adjacent chain link units are matched with each other through the side lugs and the middle lug wheel, and the cylindrical pin penetrates through the first round hole and the second round hole to connect the side lugs with the middle lugs together; the anti-falling block on the first chain link unit is not provided with a side support lug; the anti-falling block on the last chain link unit is not provided with a fixed block, a middle lug wheel and teeth; two soil breaking inclined planes are symmetrically arranged on two side faces of one end of the anti-falling block on the last chain link unit; the first inclined block and the second inclined block on one chain link unit are matched with teeth mounted on a middle lug wheel on the adjacent chain link unit, and the first inclined block and the second inclined block are respectively positioned on two sides of the teeth.
As a further improvement of the technology, the length dimension of the other end of the first L-shaped limiting block extending out of the second guide groove is the same as the length dimension of the other end of the second L-shaped limiting block extending out of the first guide groove.
As a further improvement of the technology, the length of the other end of the first L-shaped limiting block extending out of the second guide groove is equal to the thickness of the trigger arc plate.
As a further improvement of the technology, the cylindrical pin is connected with the middle of the first round hole through a bearing; the cylindrical pin is connected with the second round hole through a key.
As a further improvement of this technique, the second spring is a compression spring, and the third spring is a compression spring.
As a further improvement of the present technology, the first operating lever and the rotating shaft hole are connected by a bearing.
Compared with the traditional anchor rod technology, the anchor rod body has the advantages that the center of the end face of the anchor rod body is provided with the rotating hole, so that the first operating rod can rotate conveniently; the end face of the anchor rod body provided with the rotating hole is provided with two operating holes, and the two operating holes are symmetrically distributed about the rotating hole to facilitate the second operating rod to push the anti-drop chain; the end surface of the anchor rod body far away from the rotating hole is provided with an accommodating cavity, and the accommodating cavity is communicated with the operating hole and the rotating hole and is used for accommodating the guide rail conveniently; two semicircular grooves are formed in the two side walls of the accommodating cavity, so that the driving block can move conveniently, and the driving block is prevented from interfering with the anchor rod body when moving; two sliding grooves are symmetrically formed in the end face, far away from the rotating hole, of the anchor rod body, and the two sliding grooves are communicated with the accommodating cavity and are used for guiding the rail to move out of the anchor rod body conveniently; the upper end surfaces of the two sliding grooves are respectively provided with a first fillet which is matched with the arc section on the guide rail, so that the aim of moving the guide rail out to the maximum extent is fulfilled; the two groups of first guide grooves are sequentially formed in the side wall of the accommodating cavity from top to bottom and are used for forming sliding fit with the first guide blocks arranged on the guide rails; the semicircular groove is positioned between the two groups of first guide grooves, so that the guide rail is more stable in the movement process; the guide rail is arranged in the anchor rod body through the sliding fit of the first guide block and the first guide groove and plays a role in guiding the anti-drop chain to move; the two ends of the two trigger arc plates are provided with second round corners for matching with the anti-dropping chain, so that the anti-dropping chain can be better triggered; the two trigger arc plates are symmetrically arranged on two side walls in the guide rail, and the two trigger arc plates are positioned at the arc sections in the guide rail and are used for conveniently triggering the anti-dropping chain, so that the anti-dropping chain can smoothly pass through the arc sections on the guide rail; the guide rail is matched with the sliding groove to facilitate the guide rail to slide out of the anchor rod body; the matching effect of the guide rail and the operation hole is that the second operation rod can smoothly enter the guide rail, so that the second operation rod can act on the anti-drop chain; a first spring is arranged in the first guide groove, one end of the first spring is arranged on the end face of the first guide groove, and the other end of the first spring is arranged on the first guide block and is used for supporting the guide rail; the end face of the anchor head is provided with a rotating shaft hole which is used for conveniently fixing and supporting the first operating rod and simultaneously enabling the first operating rod to rotate; the end surface of the anchor head opening rotating shaft hole is arranged on the lower end surface of the anchor rod body, so that the anchor rod can smoothly enter soil; the two guide rails are internally provided with the anti-drop chains, so that the anti-drop chains are subjected to the acting force of soil after the second operating rod moves the anti-drop chains out of the anchor rod body, and the anchor rods are not easy to drop out of the soil; the two second operating rods are respectively arranged in the two operating holes and are used for driving the anti-drop chain to move conveniently; one end of the first operating rod penetrates through the rotating hole and is arranged in the rotating shaft hole to drive the driving block to move; the driving block is arranged on the outer circular surface of the first operating rod, and the driving block is matched with the two semicircular grooves and the outer walls of the two guide rails to drive the guide rails to move along the direction of the first guide groove; the inner circular surface of the grout stopping ring is arranged on the outer circular surface of the anchor rod body far away from the anchor head, and the grout around the anchor rod body is prevented from flowing out; the lower end face of the backing plate is arranged on the upper end face of the grout stopping ring, so that a fixture can be conveniently fixed on the anchor rod body; the anti-drop chain is composed of a plurality of chain link units, and each two adjacent chain link units are connected together through a cylindrical pin to play a role in preventing the anchor rod from dropping off.
The chain link unit in the invention is used for forming the anti-drop chain; the end face of the anti-falling block is provided with a first guide groove for facilitating the movement of the second L-shaped limiting block; a first moving groove is formed in the side face, perpendicular to the first guide groove, of the anti-falling block, and the first moving groove is communicated with the first guide groove to facilitate movement of the second L-shaped limiting block; the end face of the first moving groove is provided with a third guide groove which is used for being matched with a third guide block arranged on the second L-shaped limiting block to achieve the purpose of guiding the second L-shaped limiting block to move, and meanwhile, a third spring is convenient to install; the end face, opposite to the first guide groove, of the anti-falling block is provided with a second guide groove, so that the first L-shaped limiting block can be conveniently installed and the first L-shaped limiting block can conveniently move, the second guide groove is positioned on the upper side of the first guide groove, so that the first L-shaped limiting block and the second L-shaped limiting block can not generate an interference phenomenon in the moving process, and the first L-shaped limiting block and the second L-shaped limiting block can limit teeth; a second moving groove is formed in the side face, provided with the first moving groove, of the anti-falling block, and the second moving groove is communicated with the second guide groove to facilitate the movement of the first L-shaped limiting block; the end face of the second moving groove is provided with a second guide groove which is matched with a second guide block arranged on the first L-shaped limiting block, so that the purpose of guiding the first L-shaped limiting block to move is achieved, and meanwhile, a second spring is convenient to install; the end surfaces of the two side support lugs are respectively provided with a first through round hole, so that the cylindrical pin is convenient to mount; the two side support lugs are symmetrically arranged on the side face of the anti-falling block, and the two side support lugs and the first moving groove which are positioned on the same side of the anti-falling block are matched with a middle support lug wheel on the adjacent chain link unit, so that the two adjacent chain link units are connected together through a cylindrical pin; one end of the fixing block is arranged on the side face of the anti-falling block opposite to the side lugs and is used for fixing the middle lug wheel conveniently; the end surface of the middle lug wheel is provided with a through second round hole for facilitating the installation of the cylindrical pin; the outer circle surface of one side of the middle lug wheel is arranged on the end surface of the fixed block, so that the teeth can be conveniently arranged; a plurality of teeth are uniformly arranged on the outer circumferential surface of the middle lug wheel in the circumferential direction and are matched with the first L-shaped limiting block and the second L-shaped limiting block, so that the aim of limiting the movement of the chain link unit is fulfilled; the first L-shaped limiting block and the second guide groove are installed in a sliding fit mode, one end of the first L-shaped limiting block extends out of the second moving groove to limit the movement of teeth conveniently, and the other end of the first L-shaped limiting block extends out of the second guide groove to trigger the arc plate to trigger the anti-dropping chain conveniently, so that the anti-dropping chain can adapt to the arc section on the guide rail; the second spring is positioned in the second guide groove, one end of the second spring is arranged in the second guide groove, and the other end of the second spring is arranged on the second guide block and is used for acting with a restoring force for the second guide block; one end of the first inclined block is arranged on the end face of one end of the first L-shaped limiting block extending out of the second moving groove, so that the movement of teeth is convenient to limit; the second L-shaped limiting block is installed in a sliding fit with the first guide groove, one end of the second L-shaped limiting block extends out of the first moving groove to limit the movement of the tooth, so that the movement of the adjacent chain link units is limited, the anti-falling chain can be in a linear state, the other end of the second L-shaped limiting block extends out of the first guide groove to be matched with the trigger arc plate, and the purpose that the anti-falling chain can adapt to the arc section on the guide rail is achieved; the third spring is positioned in the third guide groove, one end of the third spring is arranged in the third guide groove, and the other end of the third spring is arranged on the third guide block and acts on the third guide block to apply a restoring force to the third guide block; one end of the second inclined block is arranged on the end face of one end, extending out of the first moving groove, of the second L-shaped limiting block, so that the second inclined block can be matched with teeth to achieve an effective limiting effect; the side support lug is not arranged on the anti-falling block on the first chain link unit, so that the second operating rod can push the anti-falling chain to move conveniently; the last chain link unit is not required to be connected with the anti-falling block on the last chain link unit; two soil breaking slopes are symmetrically arranged on two side faces of one end of the anti-drop block on the last chain link unit, so that the anti-drop chain can enter soil more easily; the first inclined block and the second inclined block on one chain link unit are matched with teeth arranged on a middle lug wheel on the adjacent chain link unit, and the first inclined block and the second inclined block are respectively positioned on two sides of the teeth and are used for being matched with two side surfaces of the teeth, so that the purpose of better limiting the chain link unit is achieved; the length of the other end of the first L-shaped limiting block extending out of the second guide groove is the same as the length of the other end of the second L-shaped limiting block extending out of the first guide groove, so that the trigger arc plate can simultaneously relieve the limiting effect of the first L-shaped limiting block and the second L-shaped limiting block on the link unit; the length dimension that the second guiding groove is stretched out to the other end of first L shape stopper equals the effect of triggering the thickness of arc plate makes the arc plate of triggering can relieve the limiting displacement to the link unit of first L shape stopper.
In the use process, when the anchor rod is not used, the guide rail is positioned in the anchor rod body, and the anti-drop chain is positioned in the straight line section in the guide rail, so that the resistance is smaller when the anchor rod enters the soil; when the anchor rod is used, firstly, the anchor rod is placed in a hole which is drilled on a soil wall in advance; secondly, the first operating rod is driven to move, the first operating rod drives the driving block to move, the driving block drives the guide rail to move, and the guide rail moves along the first guide groove, so that the guide rail can move out of the anchor rod body; the guide rail at the moment is over against the operation hole, the second operation rod extends into the operation hole, the second operation rod can provide a driving force for the anti-drop chain, when the anti-drop chain meets the trigger arc plate arranged in the guide rail, the trigger arc plate can provide an acting force for the first L-shaped limiting block and the second L-shaped limiting block, the first L-shaped limiting block can move along the second guide groove at the moment, and the second L-shaped limiting block can move along the first guide groove; first L shape stopper and the second L shape stopper of motion will break away from the region of gullet, two adjacent chain link units this moment will be rotatory around the cylindric lock, thereby make the anticreep chain can adapt to the circular arc section on the guide rail, when the second action bars is promoting the anticreep chain to move out the circular arc section on the guide rail, when getting into the straightway, first L shape stopper this moment will resume original position under the effect of second spring, second L shape stopper will resume on original position under the effect of third spring, the anticreep chain of this moment will be under the limiting action of first L shape stopper and second L shape stopper, be in rectilinear state, thereby make the anticreep chain that moves out the stock body will receive the effort of soil, thereby make the stock be difficult to drop from in the soil, reach anti-drop's purpose.
Drawings
Fig. 1 is a schematic view of the overall component distribution.
Fig. 2 is a schematic view of a drop chain installation structure.
Fig. 3 is a schematic view of a pad mounting structure.
Figure 4 is a schematic view of the anchor head construction.
Fig. 5 is a schematic view of a drive block mounting structure.
Fig. 6 is a schematic view of a first lever mounting structure.
Fig. 7 is a schematic view of a first guide block mounting structure.
Fig. 8 is a schematic view of a driving block structure.
Figure 9 is a schematic view of the structure of the anchor rod body.
Fig. 10 is a schematic view of a trigger arc plate mounting structure.
Fig. 11 is a schematic view of a guide rail mounting structure.
Fig. 12 is a schematic view of a trigger arc plate structure.
Fig. 13 is a schematic view of an anti-delinking structure.
Fig. 14 is a schematic view of a mounting structure of the fixing block.
Fig. 15 is a schematic view of a side lug mounting arrangement.
Fig. 16 is a schematic view of a first L-shaped stopper mounting structure.
Fig. 17 is a schematic view of a mounting structure of the second L-shaped stopper.
Fig. 18 is a schematic view of a tooth mounting structure.
Fig. 19 is a schematic view of a middle helix mounting arrangement.
Fig. 20 is a schematic view of the anti-separation block structure (i).
Fig. 21 is a schematic view of the anti-separation block structure (ii).
Fig. 22 is a schematic view of a second spring mounting structure.
Fig. 23 is a schematic view of a first swash block mounting structure.
Fig. 24 is a schematic view of a third spring mounting structure.
Fig. 25 is a schematic view of a second swash block mounting structure.
Number designation in the figures: 1. a first operating lever; 2. a base plate; 3. an anchor rod body; 4. the chain is prevented from falling off; 6. an anchor head; 7. a second operating lever; 8. a grout stopping ring; 10. a rotating shaft hole; 11. a first spring; 12. a first guide block; 13. a guide rail; 14. a drive block; 15. triggering an arc plate; 16. rotating the hole; 17. an operation hole; 18. a semicircular groove; 19. an accommodating chamber; 20. a first rounded corner; 21. a first guide groove; 22. a second rounded corner; 23. a link unit; 24. an anti-drop block; 25. a middle ear supporting wheel; 26. a fixed block; 27. a side lug; 28. a first L-shaped limiting block; 29. a second guide block; 30. a second spring; 31. a third spring; 32. a third guide block; 33. a second L-shaped limiting block; 34. a first circular hole; 35. teeth; 36. a first moving slot; 37. a third guide groove; 38. a first guide groove; 40. a second guide groove; 41. a second moving slot; 42. a second guide groove; 43. a first swash block; 44. a second swash block; 45. a ground breaking inclined plane; 46. a sliding groove; 47. a cylindrical pin; 48. a second circular aperture.
Detailed Description
As shown in fig. 1, 2 and 3, it comprises a first operating lever 1, a backing plate 2, an anchor rod body 3, a drop-proof chain 4, an anchor head 6, a second operating lever 7, a sliding groove 46, a grout stopping ring 8, a rotating shaft hole 10, a first spring 11, a first guide block 12, a guide rail 13, a driving block 14, a trigger arc plate 15, a rotating hole 16, an operating hole 17, a semicircular groove 18, an accommodating cavity 19, a first fillet 20, a first guide groove 21 and a second fillet 22, as shown in fig. 9, wherein the center of the end surface of the anchor rod body 3 is provided with the rotating hole 16; as shown in fig. 9, two operation holes 17 are formed on the end surface of the rotation hole 16 of the anchor rod body 3, and the two operation holes 17 are symmetrically distributed around the rotation hole 16; as shown in fig. 9, the end surface of the anchor rod body 3 far away from the rotation hole 16 is provided with an accommodating cavity 19, and the accommodating cavity 19 is communicated with the operation hole 17 and the rotation hole 16; as shown in fig. 9 and 11, two semicircular grooves 18 are symmetrically formed on two side walls of the accommodating cavity 19; as shown in fig. 9, two sliding grooves 46 are symmetrically formed on the end surface of the anchor rod body 3 away from the rotation hole 16, and both the two sliding grooves 46 are communicated with the accommodating cavity 19; as shown in fig. 9, the upper end surfaces of the two sliding grooves 46 are provided with first round corners 20; as shown in fig. 6, the two side walls of the accommodating cavity 19 with the semicircular grooves 18 are completely the same in structure, and two groups of first guide grooves 21 are sequentially formed in the side walls of the accommodating cavity 19 from top to bottom; the two first guide grooves 21 in each group are symmetrically distributed about the rotation hole 16; as shown in fig. 9, the semicircular groove 18 is located between the two sets of first guide grooves 21; the mounting structures of the first guide grooves 21 on one side of the semicircular groove 18 are completely the same, for one of the first guide grooves, as shown in fig. 7 and 10, two groups of first guide blocks 12 are symmetrically mounted on two side surfaces of the guide rail 13, and two first guide blocks 12 in each group are symmetrically distributed; as shown in fig. 11, the guide rail 13 is mounted in the anchor rod body 3 by the sliding fit of the first guide block 12 and the first guide groove 21; as shown in fig. 12, the two trigger arc plates 15 are provided with second round corners 22 at both ends; as shown in fig. 12, two trigger arc plates 15 are symmetrically installed on two side walls in the guide rail 13, and both trigger arc plates are located at the arc sections in the guide rail 13; as shown in fig. 6, the guide rail 13 is engaged with the slide groove 46; the guide rail 13 is fitted with the operation hole 17; as shown in fig. 6, a first spring 11 is installed in the first guide groove 21, one end of the first spring 11 is installed on the end surface of the first guide groove 21, and the other end is installed on the first guide block 12; as shown in fig. 4, a rotating shaft hole 10 is formed on the end surface of the anchor head 6; the end surface of the anchor head 6 provided with the rotating shaft hole 10 is arranged on the lower end surface of the anchor rod body 3; as shown in fig. 5, the two guide rails 13 are each provided therein with a drop-preventing chain 4; the two second operating rods 7 are respectively arranged in the two operating holes 17; as shown in fig. 3, one end of the first operating lever passes through the rotating hole 16 and is installed in the rotating shaft hole 10; as shown in fig. 8, the driving block 14 is installed on the outer circumferential surface of the first operating lever 1, and the driving block 14 is engaged with the two semicircular grooves 18 and the outer walls of the two guide rails 13; as shown in fig. 3, the inner circular surface of the grout stop ring 8 is arranged on the outer circular surface of the anchor rod body 3 far away from the anchor head 6; as shown in fig. 3, the lower end surface of the backing plate 2 is mounted on the upper end surface of the grout stop ring 8.
As shown in fig. 13, the above-described drop-preventing chain 4 is composed of a plurality of link units 23, and each adjacent two link units 23 are connected together by a cylindrical pin 47; as shown in fig. 13, the structure of the other link units 23 and the installation structure thereof are completely the same except for the first link unit 23 and the last link unit 23; the link unit 23 penetrating into the soil is defined as the last link unit 23.
As shown in fig. 19, the link unit 23 includes an anti-slip block 24, a middle lug wheel 25, a fixed block 26, a side lug 27, a first L-shaped stopper 28, a second guide block 29, a second spring 30, a third spring 31, a second round hole 48, a third guide block 32, a second L-shaped stopper 33, a first round hole 34, a tooth 35, a first moving groove 36, a third guide groove 37, a first guide groove 38, a second guide groove 40, a second moving groove 41, a second guide groove 42, a first inclined block 43, and a second inclined block 44, wherein as shown in fig. 20, a first guide groove 38 is formed on an end surface of the anti-slip block 24; as shown in fig. 20, the side surface of the anti-falling block 24 perpendicular to the first guide groove 38 is provided with a first moving groove 36, and the first moving groove 36 is communicated with the first guide groove 38; as shown in fig. 20, the end surface of the first moving groove 36 is provided with a third guide groove 37; as shown in fig. 21, the end surface of the anti-slip block 24 opposite to the first guide groove 38 is provided with a second guide groove 40, and the second guide groove 40 is located on the upper side of the first guide groove 38; as shown in fig. 21, the side surface of the anti-falling block 24, on which the first moving groove 36 is formed, is formed with a second moving groove 41, and the second moving groove 41 communicates with the second guide groove 40; as shown in fig. 21, the end surface of the second moving groove 41 is provided with a second guide groove 42; as shown in fig. 18, the end surfaces of the two side lugs 27 are provided with first circular holes 34; as shown in fig. 18, the two side lugs 27 are symmetrically installed on the side of the anti-falling block 24, and both the two side lugs 27 and the first moving groove 36 are located on the same side of the anti-falling block 24; as shown in fig. 22, one end of the fixing block 26 is mounted on the side surface of the anti-drop block 24 opposite to the side lug 27; as shown in fig. 14 and 18, a second through circular hole 48 is formed on the end surface of the middle lug wheel 25; as shown in fig. 24, the outer circumferential surface of one side of the middle lug wheel 25 is mounted on the end surface of the fixing block 26; as shown in fig. 24, a plurality of teeth 35 are uniformly arranged on the outer circumferential surface of the middle lug wheel 25 in the circumferential direction; as shown in fig. 16, the first L-shaped stopper 28 is installed in sliding fit with the second guide slot 40, one end of the first L-shaped stopper 28 extends out of the second moving slot 41, and the other end of the first L-shaped stopper 28 extends out of the second guide slot 40; as shown in fig. 23, one end of the second guide block 29 is mounted on the side surface of the first L-shaped limiting block 28, and the second guide block 29 is slidably fitted with the second guide groove 42; as shown in fig. 16, the second spring 30 is located in the second guide groove 42, one end of the second spring 30 is mounted in the second guide groove 42, and the other end is mounted on the second guide block 29; as shown in fig. 23, one end of the first inclined block 43 is mounted on the end surface of the first L-shaped stopper 28 extending out of one end of the second moving groove 41; as shown in fig. 17, the second L-shaped stopper 33 is slidably fitted with the first guide groove 38, one end of the second L-shaped stopper 33 extends out of the first moving groove 36, and the other end of the second L-shaped stopper 33 extends out of the first guide groove 38; as shown in fig. 25, one end of the third guide block 32 is mounted on the side surface of the second L-shaped stop block 33, and the third guide block 32 is slidably fitted with the third guide groove 37; as shown in fig. 17, the third spring 31 is located in the third guide groove 37, one end of the third spring 31 is installed in the third guide groove 37, and the other end is installed on the third guide block 32; as shown in fig. 25, one end of the second inclined block 44 is mounted on the end surface of the second L-shaped stopper 33 that extends out of the first moving groove 36.
As shown in fig. 13, the two adjacent link units 23 are engaged with the side lugs 27 and the middle lug wheel 25, and the cylindrical pin 47 passes through the first circular hole 34 and the second circular hole 48 to connect the side lugs 27 and the middle lug together; as shown in fig. 14, the side lug 27 is not attached to the retaining block 24 of the first link unit 23; as shown in fig. 15, the retaining block 24 of the last link unit 23 is not provided with the fixing block 26, the middle lug wheel 25 and the tooth 35; as shown in fig. 15, two soil breaking slopes 45 are symmetrically arranged on two side surfaces of one end of the anti-falling block 24 on the last link unit 23; the first inclined block 43 and the second inclined block 44 on one link unit 23 are matched with the tooth 35 installed on the middle lug wheel 25 on the adjacent link unit 23, and the first inclined block 43 and the second inclined block 44 are respectively positioned at two sides of the tooth 35.
The length of the other end of the first L-shaped stopper 28 extending out of the second guide groove 40 is the same as the length of the other end of the second L-shaped stopper 33 extending out of the first guide groove 38.
The length of the other end of the first L-shaped stopper 28 extending out of the second guide slot 40 is equal to the thickness of the trigger arc plate 15.
The cylindrical pin 47 is connected with the middle of the first round hole 34 through a bearing; the cylindrical pin 47 is keyed to the second circular hole 48.
The second spring 30 is a compression spring, and the third spring 31 is a compression spring.
The first operating lever 1 is connected to the rotating shaft hole 10 through a bearing.
In summary, the following steps:
the center of the end surface of the anchor rod body 3 is provided with a rotating hole 16, so that the first operating rod 1 can rotate conveniently; two operation holes 17 are formed in the end face of the rotation hole 16 formed in the anchor rod body 3, and the two operation holes 17 are symmetrically distributed around the rotation hole 16 to facilitate the second operation rod 7 to push the anti-dropping chain 4; the end surface of the anchor rod body 3 far away from the rotating hole 16 is provided with an accommodating cavity 19, and the accommodating cavity 19 is communicated with the operating hole 17 and the rotating hole 16 to conveniently accommodate the guide rail 13; two semicircular grooves 18 are formed in the two side walls of the accommodating cavity 19, so that the driving block 14 can move conveniently, and the driving block 14 and the anchor rod body 3 are prevented from interfering when moving; two sliding grooves 46 are symmetrically formed in the end face, away from the rotating hole 16, of the anchor rod body 3, and the two sliding grooves 46 are communicated with the accommodating cavity 19 to facilitate the guide rail 13 to move out of the anchor rod body 3; the upper end surfaces of the two sliding grooves 46 are respectively provided with a first fillet 20 which is matched with the arc section on the guide rail 13, so that the purpose of moving the guide rail 13 out to the maximum extent is achieved; the two groups of first guide grooves 21 are sequentially formed in the side wall of the accommodating cavity 19 from top to bottom and are used for forming sliding fit with the first guide block 12 arranged on the guide rail 13; the function of the semicircular groove 18 between the two groups of first guide grooves 21 is to make the guide rail 13 more stable during the movement; the guide rail 13 is arranged in the anchor rod body 3 through the sliding fit of the first guide block 12 and the first guide groove 21 and plays a role of guiding the movement of the anti-drop chain 4; the two ends of the two trigger arc plates 15 are provided with second round corners 22 for matching with the anti-drop chain 4, so that the anti-drop chain 4 can be triggered better; the two trigger arc plates 15 are symmetrically arranged on two side walls in the guide rail 13, and the two trigger arc plates are positioned at the arc sections in the guide rail 13 and are used for conveniently triggering the anti-drop chain 4, so that the anti-drop chain 4 can smoothly pass through the arc sections on the guide rail 13; the guide rail 13 and the sliding groove 46 are matched to facilitate the guide rail 13 to slide out of the anchor rod body 3; the function of the guide rail 13 and the operation hole 17 is to enable the second operation rod 7 to smoothly enter the guide rail 13, so that the second operation rod 7 can act on the anti-drop chain 4; a first spring 11 is arranged in the first guide groove 21, one end of the first spring 11 is arranged on the end surface of the first guide groove 21, and the other end of the first spring 11 is arranged on the first guide block 12 and is used for supporting the guide rail 13; the end face of the anchor head 6 is provided with a rotating shaft hole 10 for fixing and supporting the first operating rod 1 and enabling the first operating rod 1 to rotate; the end surface of the anchor head 6 provided with the rotating shaft hole 10 is arranged on the lower end surface of the anchor rod body 3, so that the anchor rod can smoothly enter the soil; the two guide rails 13 are internally provided with the anti-drop chains 4, so that after the second operating rod 7 moves the anti-drop chains 4 out of the anchor rod body 3, the anti-drop chains 4 are subjected to the acting force of soil, and the anchor rod is not easy to separate from the soil; the two second operating rods 7 are respectively arranged in the two operating holes 17 and are used for driving the anti-drop chain 4 to move; one end of the first operating rod passes through the rotating hole 16 and is arranged in the rotating shaft hole 10 to drive the driving block 14 to move; the driving block 14 is installed on the outer circular surface of the first operating rod 1, and the driving block 14, the two semicircular grooves 18 and the outer walls of the two guide rails 13 are matched to facilitate the driving of the guide rails 13 to move along the direction of the first guide grooves 21; the inner circle surface of the grout stopping ring 8 is arranged on the outer circle surface of the anchor rod body 3 far away from the anchor head 6 and is used for preventing grout around the anchor rod body 3 from flowing out; the lower end face of the backing plate 2 is arranged on the upper end face of the grout stopping ring 8, so that a fixture can be conveniently fixed on the anchor rod body 3; the anti-drop chain 4 is composed of a plurality of link units 23, and each two adjacent link units 23 are connected together through a cylindrical pin 47 to play a role in preventing the anchor rods from dropping off.
The link unit 23 in the present invention functions to constitute the drop-off preventive chain 4; the end face of the anti-falling block 24 is provided with a first guide groove 38 for facilitating the movement of the second L-shaped limiting block 33; a first moving groove 36 is formed in the side surface of the anti-falling block 24, which is perpendicular to the first guide groove 38, and the first moving groove 36 is communicated with the first guide groove 38 to facilitate the movement of the second L-shaped limiting block 33; the end surface of the first moving groove 36 is provided with a third guide groove 37 for matching with a third guide block 32 arranged on the second L-shaped limiting block 33, so that the purpose of guiding the second L-shaped limiting block 33 to move is achieved, and meanwhile, the third spring 31 is convenient to install; the end face, opposite to the first guide groove 38, of the anti-falling block 24 is provided with a second guide groove 40, so that the first L-shaped limiting block 28 can be conveniently installed and the first L-shaped limiting block 28 can conveniently move, the second guide groove 40 is positioned on the upper side of the first guide groove 38, so that the first L-shaped limiting block 28 and the second L-shaped limiting block 33 can not generate an interference phenomenon in the moving process, and meanwhile, the first L-shaped limiting block 28 and the second L-shaped limiting block 33 can limit the teeth 35; the side surface of the anti-falling block 24 provided with the first moving groove 36 is provided with a second moving groove 41, and the second moving groove 41 is communicated with the second guide groove 40 to facilitate the movement of the first L-shaped limiting block 28; the end face of the second moving groove 41 is provided with a second guide groove 42 which is used for matching with a second guide block 29 arranged on the first L-shaped limiting block 28, so that the purpose of guiding the first L-shaped limiting block 28 to move is achieved, and meanwhile, the second spring 30 is convenient to install; the end surfaces of the two side support lugs 27 are respectively provided with a through first round hole 34 for facilitating the installation of the cylindrical pin 47; the two side lugs 27 are symmetrically arranged on the side faces of the anti-falling block 24, and the two side lugs 27 and the first moving groove 36 which are positioned on the same side of the anti-falling block 24 are used for being matched with the middle lug wheel 25 on the adjacent link unit 23, so that the two adjacent link units 23 are connected together through the cylindrical pin 47; one end of the fixing block 26 is arranged on the side surface of the anti-falling block 24 opposite to the side lugs 27 and is used for fixing the middle lug wheel 25 conveniently; the end surface of the middle lug wheel 25 is provided with a through second round hole 48 for facilitating the installation of the cylindrical pin 47; the outer circle surface of one side of the middle lug wheel 25 is arranged on the end surface of the fixed block 26 for facilitating the installation of the teeth 35; a plurality of teeth 35 are uniformly arranged on the outer circumferential surface of the middle lug wheel 25 in the circumferential direction and are matched with the first L-shaped limiting block 28 and the second L-shaped limiting block 33, so that the purpose of limiting the movement of the link unit 23 is achieved; the first L-shaped limiting block 28 and the second guide groove 40 are installed in a sliding fit mode, one end of the first L-shaped limiting block 28 extends out of the second moving groove 41 to limit the movement of the teeth 35 conveniently, and the other end of the first L-shaped limiting block 28 extends out of the second guide groove 40 to trigger the arc plate 15 to trigger the anti-falling chain 4 conveniently, so that the anti-falling chain 4 can adapt to the arc section on the guide rail 13; the second spring 30 is positioned in the second guide groove 42, one end of the second spring 30 is arranged in the second guide groove 42, and the other end of the second spring 30 is arranged on the second guide block 29 and is used for exerting a restoring force on the second guide block 29; one end of the first inclined block 43 is mounted on the end surface of the first L-shaped limiting block 28 extending out of the second moving groove 41, so as to limit the movement of the tooth 35; the second L-shaped limiting block 33 is installed in sliding fit with the first guide groove 38, one end of the second L-shaped limiting block 33 extending out of the first moving groove 36 is used for conveniently limiting the movement of the tooth 35, so that the movement of the adjacent link unit 23 is limited, the anti-falling chain 4 can be in a linear state, and the other end of the second L-shaped limiting block 33 extending out of the first guide groove 38 is used for matching with the trigger arc plate 15, so that the anti-falling chain 4 can be adapted to the arc section on the guide rail 13; the third spring 31 is positioned in the third guide groove 37, one end of the third spring 31 is arranged in the third guide groove 37, and the other end of the third spring 31 is arranged on the third guide block 32 and acts on the third guide block 32 to apply a restoring force to the third guide block 32; one end of the second inclined block 44 is arranged on the end face of one end of the second L-shaped limiting block 33 extending out of the first moving groove 36, so that the second L-shaped limiting block can be matched with the teeth 35 to play an effective limiting role; the side support lug 27 is not arranged on the anti-falling block 24 on the first chain unit 23, so that the second operating rod 7 can push the anti-falling chain 4 to move; the last chain unit 23 is not required to be connected with the fixed block 26, the middle lug wheel 25 and the tooth 35 on the anti-falling block 24; two soil breaking slopes 45 are symmetrically arranged on two side faces of one end of the anti-falling block 24 on the last chain unit 23, so that the anti-falling chain 4 can enter soil more easily; the first inclined block 43 and the second inclined block 44 on one link unit 23 are matched with the tooth 35 mounted on the middle lug wheel 25 on the adjacent link unit 23, and the first inclined block 43 and the second inclined block 44 respectively positioned on two sides of the tooth 35 are matched with two side surfaces of the tooth 35, so that the purpose of better limiting the link unit 23 is achieved; the length of the other end of the first L-shaped stopper 28 extending out of the second guide groove 40 is the same as the length of the other end of the second L-shaped stopper 33 extending out of the first guide groove 38, so that the trigger arc plate 15 can simultaneously release the limiting effect of the first L-shaped stopper 28 and the second L-shaped stopper 33 on the link unit 23; the length of the other end of the first L-shaped stopper 28 extending out of the second guide groove 40 is equal to the thickness of the trigger arc plate 15, so that the trigger arc plate 15 can release the function of the first L-shaped stopper 28 in stopping the link unit 23.
The concrete implementation mode is that when the anchor rod is not used, the guide rail 13 is positioned in the anchor rod body 3, and the anti-drop chain 4 is positioned in a straight line section in the guide rail 13, so that the resistance is smaller when the anchor rod enters the soil; when the anchor rod is used, firstly, the anchor rod is placed in a hole which is drilled on a soil wall in advance; secondly, the first operating rod 1 is driven to move, the first operating rod 1 drives the driving block 14 to move, the driving block 14 drives the guide rail 13 to move, and the guide rail 13 moves along the first guide groove 21, so that the guide rail 13 can move out of the anchor rod body 3; at this time, the guide rail 13 is over against the operation hole 17, the second operation rod 7 is extended into the operation hole 17, the second operation rod 7 applies a driving force to the anti-drop chain 4, when the anti-drop chain 4 meets the trigger arc plate 15 installed in the guide rail 13, the trigger arc plate 15 applies a force to the first L-shaped limit block 28 and the second L-shaped limit block 33, the first L-shaped limit block 28 moves along the second guide groove 40, and the second L-shaped limit block 33 moves along the first guide groove 38; the moving first L-shaped stopper 28 and the moving second L-shaped stopper 33 will be separated from the region of the tooth 35, and at this time, the two adjacent link units 23 will rotate around the cylindrical pin 47, so that the anti-drop chain 4 can adapt to the arc section on the guide rail 13, when the second operating rod 7 pushes the anti-drop chain 4 to move out of the arc section on the guide rail 13 and enter the straight section, the first L-shaped stopper 28 will be restored to the original position under the action of the second spring 30, the second L-shaped stopper 33 will be restored to the original position under the action of the third spring 31, the anti-drop chain 4 at this time will be in a linear state under the limiting action of the first L-shaped stopper 28 and the second L-shaped stopper 33, so that the anti-drop chain 4 moving out of the anchor rod body 3 will be subjected to the acting force of soil, and the anchor rod will not easily fall off from the soil, the purpose of preventing falling is achieved.
Claims (4)
1. A safety anchor rod is characterized in that: the anchor rod comprises a first operating rod, a base plate, an anchor rod body, an anti-drop chain, an anchor head, a second operating rod, a sliding groove, a grout stopping ring, a rotating shaft hole, a first spring, a first guide block, a guide rail, a driving block, a triggering arc plate, a rotating hole, an operating hole, a semicircular groove, a containing cavity, a first fillet, a first guide groove and a second fillet, wherein the center of the end face of the anchor rod body is provided with the rotating hole; the end face of the anchor rod body provided with the rotating hole is provided with two operating holes, and the two operating holes are symmetrically distributed relative to the rotating hole; the end surface of the anchor rod body far away from the rotating hole is provided with an accommodating cavity which is communicated with the operating hole and the rotating hole; two semicircular grooves are symmetrically formed in the two side walls of the accommodating cavity; two sliding grooves are symmetrically formed in the end face, far away from the rotating hole, of the anchor rod body, and the two sliding grooves are communicated with the accommodating cavity; the upper end surfaces of the two sliding grooves are provided with first round corners; the two side walls of the semicircular groove of the accommodating cavity are completely the same in structure, and one of the two groups of first guide grooves is sequentially arranged on the side wall of the accommodating cavity from top to bottom; the two first guide grooves in each group are symmetrically distributed about the rotating hole; the semicircular groove is positioned between the two groups of first guide grooves; the mounting structures of the first guide grooves on one side of the semicircular groove are completely the same, for one of the first guide grooves, two groups of first guide blocks are symmetrically mounted on two side surfaces of the guide rail, and two first guide blocks in each group are symmetrically distributed; the guide rail is arranged in the anchor rod body through the sliding fit of the first guide block and the first guide groove; two ends of the two trigger arc plates are provided with second round corners; the two trigger arc plates are symmetrically arranged on two side walls in the guide rail, and are both positioned at the arc sections in the guide rail; the guide rail is matched with the sliding groove; the guide rail is matched with the operation hole; a first spring is arranged in the first guide groove, one end of the first spring is arranged on the end face of the first guide groove, and the other end of the first spring is arranged on the first guide block; a rotating shaft hole is formed in the end face of the anchor head; the end surface of the anchor head provided with the rotating shaft hole is arranged on the lower end surface of the anchor rod body; anti-drop chains are arranged in the two guide rails; the two second operating rods are respectively arranged in the two operating holes; one end of the first operating rod penetrates through the rotating hole and is arranged in the rotating shaft hole; the driving block is arranged on the outer circular surface of the first operating rod and matched with the two semicircular grooves and the outer walls of the two guide rails; the inner circular surface of the grout stopping ring is arranged on the outer circular surface of the anchor rod body far away from the anchor head; the lower end face of the base plate is arranged on the upper end face of the grout stopping ring;
the anti-falling chain consists of a plurality of chain link units, and each two adjacent chain link units are connected together through a cylindrical pin; except the first chain link unit and the last chain link unit, the upper structures and the installation structures of other chain link units are completely the same; defining the chain link unit penetrating into the soil as the last chain link unit;
the chain link unit comprises an anti-falling block, a middle lug wheel, a fixed block, a side lug, a first L-shaped limiting block, a second guide block, a second spring, a third spring, a second round hole, a third guide block, a second L-shaped limiting block, a first round hole, a tooth, a first moving groove, a third guide groove, a first guide groove, a second moving groove, a second guide groove, a first inclined block and a second inclined block, wherein the end face of the anti-falling block is provided with the first guide groove; a first moving groove is formed in the side surface, perpendicular to the first guide groove, of the anti-falling block, and the first moving groove is communicated with the first guide groove; the end surface of the first moving groove is provided with a third guide groove; a second guide groove is formed in the end face, opposite to the first guide groove, of the anti-falling block, and the second guide groove is located on the upper side of the first guide groove; a second moving groove is formed in the side face, provided with the first moving groove, of the anti-falling block, and the second moving groove is communicated with the second guide groove; the end surface of the second moving groove is provided with a second guide groove; the end surfaces of the two side lugs are respectively provided with a first through round hole; the two side support lugs are symmetrically arranged on the side surface of the anti-falling block, and the two side support lugs and the first moving groove are positioned on the same side of the anti-falling block; one end of the fixing block is arranged on the side face of the anti-falling block opposite to the side lug; the end surface of the middle lug wheel is provided with a through second round hole; the outer circle surface of one side of the middle lug wheel is arranged on the end surface of the fixed block; a plurality of teeth are uniformly arranged on the circumferential direction of the outer circular surface of the middle lug wheel; the first L-shaped limiting block and the second guide groove are installed in a sliding fit mode, one end of the first L-shaped limiting block extends out of the second moving groove, and the other end of the first L-shaped limiting block extends out of the second guide groove; one end of the second guide block is arranged on the side surface of the first L-shaped limiting block, and the second guide block is in sliding fit with the second guide groove; the second spring is positioned in the second guide groove, one end of the second spring is arranged in the second guide groove, and the other end of the second spring is arranged on the second guide block; one end of the first inclined block is arranged on the end face of one end of the first L-shaped limiting block, which extends out of the second moving groove; the second L-shaped limiting block is installed with the first guide groove in a sliding fit mode, one end of the second L-shaped limiting block extends out of the first moving groove, and the other end of the second L-shaped limiting block extends out of the first guide groove; one end of the third guide block is arranged on the side surface of the second L-shaped limiting block, and the third guide block is in sliding fit with the third guide groove; the third spring is positioned in the third guide groove, one end of the third spring is arranged in the third guide groove, and the other end of the third spring is arranged on the third guide block; one end of the second inclined block is arranged on the end face of one end, extending out of the first moving groove, of the second L-shaped limiting block;
the two adjacent chain link units are matched with each other through the side lugs and the middle lug wheel, and the cylindrical pin penetrates through the first round hole and the second round hole to connect the side lugs with the middle lugs together; the anti-falling block on the first chain link unit is not provided with a side support lug; the anti-falling block on the last chain link unit is not provided with a fixed block, a middle lug wheel and teeth; two soil breaking inclined planes are symmetrically arranged on two side faces of one end of the anti-falling block on the last chain link unit; the first inclined block and the second inclined block on one chain link unit are matched with teeth mounted on a middle lug wheel on the adjacent chain link unit, and the first inclined block and the second inclined block are respectively positioned on two sides of the teeth;
the length dimension of the other end of the first L-shaped limiting block extending out of the second guide groove is the same as the length dimension of the other end of the second L-shaped limiting block extending out of the first guide groove;
the length dimension of the other end of the first L-shaped limiting block extending out of the second guide groove is equal to the thickness of the trigger arc plate.
2. A safety bolt according to claim 1, wherein: the cylindrical pin is connected with the middle of the first round hole through a bearing; the cylindrical pin is connected with the second round hole through a key.
3. A safety bolt according to claim 1, wherein: the second spring is a compression spring, and the third spring is a compression spring.
4. A safety bolt according to claim 1, wherein: the first operating lever is connected with the rotating shaft hole through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869287.XA CN108868849B (en) | 2017-12-07 | 2017-12-07 | Safety anchor rod |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869287.XA CN108868849B (en) | 2017-12-07 | 2017-12-07 | Safety anchor rod |
| CN201711287201.4A CN108019234A (en) | 2017-12-07 | 2017-12-07 | A kind of safe anchor pole of top expanded type |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711287201.4A Division CN108019234A (en) | 2017-12-07 | 2017-12-07 | A kind of safe anchor pole of top expanded type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108868849A CN108868849A (en) | 2018-11-23 |
| CN108868849B true CN108868849B (en) | 2021-01-29 |
Family
ID=62078912
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810869373.0A Withdrawn CN108868850A (en) | 2017-12-07 | 2017-12-07 | A kind of top expanded type anchor pole |
| CN201810869374.5A Withdrawn CN108868851A (en) | 2017-12-07 | 2017-12-07 | A kind of safe anchor pole of expanded type |
| CN201810869287.XA Active CN108868849B (en) | 2017-12-07 | 2017-12-07 | Safety anchor rod |
| CN201711287201.4A Withdrawn CN108019234A (en) | 2017-12-07 | 2017-12-07 | A kind of safe anchor pole of top expanded type |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810869373.0A Withdrawn CN108868850A (en) | 2017-12-07 | 2017-12-07 | A kind of top expanded type anchor pole |
| CN201810869374.5A Withdrawn CN108868851A (en) | 2017-12-07 | 2017-12-07 | A kind of safe anchor pole of expanded type |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711287201.4A Withdrawn CN108019234A (en) | 2017-12-07 | 2017-12-07 | A kind of safe anchor pole of top expanded type |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN108868850A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209458A (en) * | 2018-10-31 | 2019-01-15 | 北京交通大学 | A kind of increasing resistance pressurization anchor pole |
| CN109339837B (en) * | 2018-11-28 | 2020-03-06 | 华北科技学院 | Anchor bolt supporting device for large-section rapid tunneling roadway |
| CN111663527B (en) * | 2020-05-25 | 2021-07-16 | 宁波冶金勘察设计研究股份有限公司 | Support anchor rod |
| CN114086610B (en) * | 2021-10-29 | 2023-06-23 | 浙江科技学院 | Device and method for preventing ejection of upper section pile in pile self-balancing test |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2349659C3 (en) * | 1973-10-03 | 1979-06-13 | Upat Gmbh & Co, 7830 Emmendingen | Auxiliary device for fastening a tie rod |
| CN2317310Y (en) * | 1997-09-17 | 1999-05-05 | 四川万通工程材料设备有限责任公司 | All screw hollow grouting anchoring-bolt |
| CN2466350Y (en) * | 2001-01-02 | 2001-12-19 | 汪德洪 | Combined anchoring first and grouting then anchoring bolt |
| CN1363759A (en) * | 2001-01-02 | 2002-08-14 | 汪德洪 | Combined first-anchoring-after-grouting anchor rod |
| CN2804390Y (en) * | 2005-04-13 | 2006-08-09 | 李晓峰 | Harm gas preventing hollowed injecting paste anchor rod |
| CN2895743Y (en) * | 2006-03-22 | 2007-05-02 | 中铁西南科学研究院有限公司 | All-screw thread non-metal composite pipe paste-injecting anchoring rod |
| CN102953743B (en) * | 2012-09-02 | 2015-12-09 | 山东科技大学 | Based Intelligent Control increases resistance large deformation anchor rod and application process thereof |
| CN104805839B (en) * | 2015-05-13 | 2017-11-21 | 江创葵 | A kind of engineering anchor |
| CN204827500U (en) * | 2015-08-06 | 2015-12-02 | 湖南科技大学 | Pinniform wedge body stock |
| CN205330701U (en) * | 2015-12-16 | 2016-06-22 | 湖南科技大学 | Extensible energy -absorbing anchor |
| CN205422773U (en) * | 2016-03-16 | 2016-08-03 | 河南工程学院 | Novel hollow grouting anchor bolt |
| CN206638159U (en) * | 2017-04-17 | 2017-11-14 | 安徽福淮矿山科技有限公司 | A kind of intelligent and safe anchor pole |
-
2017
- 2017-12-07 CN CN201810869373.0A patent/CN108868850A/en not_active Withdrawn
- 2017-12-07 CN CN201810869374.5A patent/CN108868851A/en not_active Withdrawn
- 2017-12-07 CN CN201810869287.XA patent/CN108868849B/en active Active
- 2017-12-07 CN CN201711287201.4A patent/CN108019234A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN108019234A (en) | 2018-05-11 |
| CN108868850A (en) | 2018-11-23 |
| CN108868849A (en) | 2018-11-23 |
| CN108868851A (en) | 2018-11-23 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A safety bolt Effective date of registration: 20221206 Granted publication date: 20210129 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Hangzhou Fuyang sub branch Pledgor: HANGZHOU FUYANG HONGXIANG TECHNOLOGY SERVICES Co.,Ltd. Registration number: Y2022980024811 |
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Date of cancellation: 20230713 Granted publication date: 20210129 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Hangzhou Fuyang sub branch Pledgor: HANGZHOU FUYANG HONGXIANG TECHNOLOGY SERVICES Co.,Ltd. Registration number: Y2022980024811 |