CN210002399U

CN210002399U - kinds of anchoring device

Info

Publication number: CN210002399U
Application number: CN201920595425.XU
Authority: CN
Inventors: 周艳君
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-01-31
Anticipated expiration: 2029-04-28

Abstract

The utility model relates to a kinds of anchoring devices, including the anchor head, be provided with a plurality of drill bit in the anchor head, be provided with the through-hole that supplies the drill bit to stretch out on the anchor head, install the drive arrangement who drives a plurality of drill bit synchronous rotation and bore into the ground body on the anchor head, be provided with the restriction drill bit on the anchor head and stretch out the restriction piece of through-hole when not working, through the part of drill bit in boring into the ground body on every side, the resistance to compression and the ability resource of shearing of ground body around the pin effect make full use of anchor hole (stake hole), make the department of placing of anchor head difficult the appearance not hard up, the intensity of ground body has been increased, the drill bit is when not working, place the drill bit in the anchor head through the restriction piece, the volume that the drill bit took the anchor head periphery has been reduced, make things convenient for the transport of anchor head, anchor head after the volume diminishes is when putting into the anchor hole, be difficult for.

Description

kinds of anchoring device

Technical Field

The utility model belongs to the technical field of geotechnical engineering tensile member's technique and specifically relates to relate to anchor.

Background

In the era of urban high-speed development at present, tensile members (anchor rods, anchor cables, uplift piles and the like) are used in great quantity in engineering construction such as geotechnical engineering construction, geological disaster treatment, emergency rescue and the like, and the traditional mechanical tensile member is placed in the rock and soil and achieves the aim of anchoring through the friction force between the tensile member and the rock and soil body by utilizing a pressurizing, grouting or chemical cement method.

The above prior art solutions have the following drawbacks: in current geotechnical engineering construction, geological disaster management, emergency rescue and environmental protection work, the traditional anchoring method of the tensile member has the defects that the anchoring effect is invalid due to factors such as inaccuracy of geotechnical parameters, design calculation, construction, change of geotechnical bodies and the like, the time for the tensile member to obtain effective tension is long, and chemical substances enter the ground and then cause harm to the environment, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims at providing kinds of anchor, have the advantage that obtains the pulling force fast, improves tensile member's tensile ability.

The above object of the present invention can be achieved by the following technical solutions:

kinds of anchor, including the anchor head, be provided with a plurality of drill bit in the anchor head, the overhead confession that is provided with of anchor the through-hole that the drill bit stretches out, the overhead drive arrangement who drives a plurality of drill bit synchronous rotation and bore into the ground body of installing of anchor, the overhead restriction that is provided with of anchor the drill bit stretches out the restriction of through-hole, works as the drive arrangement drive the drill bit rotates and bores into the ground body when, the drill bit stretches out the through-hole.

Through adopting above-mentioned technical scheme, internal through drive arrangement drive drill bit drilling ground, the drill bit part is stayed in the ground body, and the drill bit forms the effect of pin between anchor head and ground body to increase the joint strength between anchor body and the ground layer, strengthened the intensity that bears the tension of ground body, make the difficult appearance of placing department of anchor head not hard up. When the drill bit is not in operation, place the drill bit in anchor head through the restriction piece, reduced the volume that the drill bit took anchor head periphery, made things convenient for the transport of anchor head, small anchor head is when putting into the anchor hole, is difficult for colliding with the pore wall in anchor hole, is favorable to putting into appointed position with the anchor head.

The utility model discloses advance step and set up as including the elastic component that driver bit stretches out the through-hole and driver bit pivoted drive assembly, the restriction piece is including setting up the relief valve on the through-hole pore wall, the relief valve with the front end butt of drill bit.

Through adopting above-mentioned technical scheme, when rotating and stretching out the through-hole through at the drill bit, the drill bit bores to the relief valve, and the elastic component exerts jacking force to the drill bit, and drive assembly exerts around drill bit center pin pivoted turning force to the drill bit, and the drill bit that has constant acceleration creeps into the ground body after opening the relief valve top for when the drill bit is not used, relief valve restriction drill bit stretches out outside the through-hole, makes things convenient for the installation and the transport of anchor head.

The utility model discloses step sets up as drive assembly includes driving piece and movable sleeve, the movable sleeve with the driving piece rotates to be connected, the drill bit is placed in the movable sleeve, the drill bit with movable sleeve sliding connection, the elastic component is placed between drill bit end and the movable sleeve, work as the front end of drill bit with during the relief valve butt, the end of drill bit supports tightly the elastic component.

Through adopting above-mentioned technical scheme, through placing the drill bit in the movable sleeve, the movable sleeve drives the drill bit under the driving of driving piece and realizes coaxial rotation, the movable sleeve provides for the drill bit around drill bit axial pivoted power, cooperation elastic component exerts the jacking force to the drill bit when the drill bit rotates, the drill bit is crept open the relief valve when rotating, steps of outside motion creeps into the ground body, the effect of formation bolt between cooperation anchor head and the ground body, utilize the resistance to compression of the ground body from this, the resistance to shear resource, the stretching resistance of anchor rod has been improved.

The utility model discloses advance step and set up to the driving piece includes the initiative helical gear, with the driven helical gear that drill bit quantity was equipped with and be used for driving initiative helical gear pivoted driving motor, driving motor's pivot with the same axle center of initiative helical gear, every driven helical gear all with initiative helical gear interlock, every the movable sleeve corresponds with driven helical gear fixed connection, the movable sleeve with the same axle center of driven helical gear.

By adopting the technical scheme, the driving bevel gear is meshed with the driven bevel gear, the driving bevel gear is driven by the driving motor to indirectly drive the movable sleeve to rotate, the length of the drill bit extending into the rock-soil body can be controlled to be in a proper length by controlling the number of rotation turns of the driving motor, so that the drill bit and the anchoring head are matched to reach a better value, the drill bit is not easy to break when being stressed, teeth on the driving bevel gear and the driven bevel gear are inclined by 45 degrees, the driving bevel gear shaft and the drill bit axis are not coplanar and vertical, a plurality of driven bevel gears can be installed on the same cross sections of the driving bevel gears, a plurality of drill bits can be synchronously extended and drilled into the rock-soil body through the rotation of the driving bevel gears, the drill bit is drilled into the rock-soil body from a position which is parallel to the diameter of the cross section of the anchoring head at a fixed distance, the actual shearing resistant area of the drill bit is larger than the cross section.

The utility model discloses step sets up to be provided with on the anchor head and be used for the through-hole prevent sand lid.

Through adopting above-mentioned technical scheme, do not work at the drill bit through the sand prevention lid, the sand prevention lid shelters from on the through-hole, when installation anchor head, hard particulate matter such as earth and quartz sand is difficult for entering into the inside of anchor head from the through-hole, the difficult card of particulate matter is in the inslot between two adjacent teeth on driven helical gear and the drive helical gear, when driving motor drive helical gear and driven helical gear sting, cause the unable meshing of drive helical gear and driven helical gear, the tooth of drive helical gear and driven helical gear is worn and torn, it leads to the fact driving motor's damage to advance steps, the drill bit can't stretch out the through-hole, influence the anchor effect of head.

The utility model discloses step sets up to, side and the anchor head swing joint of sand prevention lid.

By adopting the technical scheme, the sand-proof cover is movably connected with the anchoring head, the drill bit drills the sand-proof cover under the action of the pushing force of the elastic piece, and then the through hole is extended, and the end of the sand-proof cover movably connected with the anchoring head is not easy to lose when the anchoring head is manufactured, so that the manufacturing cost is reduced.

The utility model discloses step sets up to a plurality of driven helical gears around the circumference shape of initiative helical gear evenly sets up.

Through adopting above-mentioned technical scheme, be circumference evenly distributed's drill bit through the setting for anchor all has the drill bit around to creep into the ground body, has increased the compressive area between drill bit and the ground body, thereby has improved the compressive capacity between drill bit and the ground body, has strengthened the tensile pulling force that the anchor head bore.

The utility model discloses step sets up to drive motor with anchor head detachable connects.

Through adopting above-mentioned technical scheme, through can dismantling driving motor and anchor head to be connected, after with anchor head anchor on the geotechnical body, can retrieve driving motor and recycle, reduce driving motor's waste, practiced thrift engineering cost.

The utility model discloses advance step set up to be provided with two piece at least cardboards on the anchor head, the last fixture block that is provided with of driving motor, be provided with the draw-in groove on the cardboard, work as when driving motor rotates, the fixture block is in slide in the draw-in groove, the fixture block with the draw-in groove joint, driving motor's pivot epirelief is equipped with lug or recess, the overhead orientation of anchor lug or recess are provided with restriction lug or recess pivoted elastic clamp plate, the clamp plate with lug or recess butt, work as during driving motor corotation, the fixture block with the draw-in groove joint, work as during driving motor reversal, the clamp plate with lug or recess support tightly.

Through adopting above-mentioned technical scheme, the last pivot reversal of driving motor, because of the drill bit has already anchored with the ground body this moment for the initiative helical gear card is motionless, driving motor rotation this moment, and epaxial lug or recess of changeing appear the reversal along with the pivot, until lug or recess and clamp plate butt, the fixture block breaks away from the draw-in groove this moment, then alright take out driving motor from the anchor downthehole, carry out utilization once more, reduced construction engineering's cost.

To sum up, the utility model discloses a beneficial technological effect does:

1. in driving device drive drill bit bored the ground body, the drill bit part was stayed in the ground body, and the drill bit forms the effect of pin between anchor head and ground body to increase the joint strength between anchor body and the ground layer, utilized the resistance to compression, the ability of shearing of ground body, make the department of placing of anchor head can not appear becoming flexible, sliding, increased tensile member's tensile ability. When the drill bit is not in operation, the drill bit is placed in the anchoring head through the limiting part, so that the volume of the drill bit occupying the periphery of the anchoring head is reduced, the carrying of the anchoring head is facilitated, the anchoring head with the reduced volume is not easy to contact with the hole wall of the anchoring hole when being placed in the anchoring hole, and the anchoring head is favorably placed in an appointed position;

2. when the drill bit does not work, the sand-proof cover is shielded on the through hole, when the anchoring head is installed, particulate matters such as soil and quartz sand are not easy to enter the anchoring head from the through hole, the particulate matters are not easy to be clamped in a groove between two adjacent teeth on the driven helical gear and the driving helical gear, when the driving helical gear and the driven helical gear are meshed by the driving motor, the driving helical gear and the driven helical gear cannot be meshed, the teeth of the driving helical gear and the driven helical gear are worn, steps are carried out to cause the damage of the driving motor, the drill bit cannot extend out of the through hole, and the anchoring effect of the anchoring head is influenced;

3. through can dismantling driving motor and anchor head to be connected, after with anchor head anchor on the ground body, can dismantle the motor and get off to recycle, reduce driving motor's waste, practiced thrift engineering cost.

Drawings

FIG. 1 is a schematic view of the relationship of a driving helical gear and a driven helical gear;

FIG. 2 is an enlarged schematic view of A of FIG. 1;

FIG. 3 is a schematic structural view of the present embodiment;

FIG. 4 is an enlarged schematic view of B in FIG. 3;

fig. 5 is a schematic view of the drill and the movable sleeve in this embodiment.

In the figure, the device comprises an anchoring head 1, a through hole 11, a safety valve 13, a drill bit 2, a driving device 21, a driving assembly 211, a driving piece 2111, a driving bevel gear 2112, a driven bevel gear 2113, a driving motor 212, a movable sleeve 213, a limiting block 22, an elastic piece 3, an anchoring piece joint 4, a sand prevention cover 41, a buckling block 42, a buckling groove 5, a clamping plate 51, a clamping groove 52, a fixing plate 6, a clamping block 7, a bump 71, a second side , a second side 72, a pressing plate 8, a telescopic spring 9, a grouting hole 10.

Detailed Description

The present invention will be described in further detail in with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an kinds of anchor, including the anchor head 1, be provided with a plurality of drill bits 13 in the anchor head 1, be provided with the through-hole 11 that supplies drill bit 13 to stretch out on the anchor head 1, be provided with the drive arrangement 2 that drives a plurality of drill bit 13 and rotate and bore into the ground body in step on the anchor head 1, be provided with the restriction on the anchor head 1 the drill bit 13 stretches out the restriction piece of through-hole 11 when not working.

The anchor head 1 is a circular hollow body and is provided with an opening at the top end, an anchor joint port 3 is formed on the side wall of the anchor head 1 by penetrating through the top end of the anchor head 1 and is used for fixing an anchor rod or an anchor cable, a grouting hole 10 is formed on the anchor head 1 by penetrating through the bottom end of the anchor head 1, an arc-shaped sand-proof cover 4 for closing the through hole 11 is installed on the through hole 11, the side of the sand-proof cover 4 is hinged with the anchor head 1, a buckling block 41 is formed on the sand-proof cover 4 by protruding at the end opposite to the hinged end of the sand-proof cover 4 and the hinged end of the anchor head, and a buckling groove 42 which is matched with the buckling block 41 in an inserting mode.

The driving device 2 comprises an elastic part 22 for driving the drill bit 13 to extend out of the through hole 11 and a driving assembly 21 for driving the drill bit 13 to rotate, the driving assembly 21 comprises a driving part 211 and a hollow cylindrical movable sleeve 212, the driving part 211 comprises a driving bevel gear 2111, driven bevel gears 2112 and a driving motor 2113 for driving the driving bevel gear 2111 to rotate, the rotating shaft of the driving motor 2113 extends into the central axis of the driving bevel gear 2111, the rotating shaft of the driving motor 2113 is coaxial with the driving bevel gear 2111, the number of the driven bevel gears 2112 is equal to the number of the drill bits 13, each driven bevel gear 2112 is meshed with the driving bevel gear 2111, the driven bevel gears 2112 are uniformly distributed around the driving bevel gear 2111 in a circumferential manner, in the embodiment, the number of the driven bevel gears 2112 is four, the central axis of each driven bevel gear 2112 is distributed at 90 degrees to the vertical plane with the central axis of the driving bevel gear 2111, in other embodiments, each driven bevel gear 2112 and the driving bevel gear 2111 are fixedly connected with movable sleeves in a.

Referring to fig. 1 and 2, the driving motor 2113 is detachably connected to the anchoring head 1, a protrusion 7 or a groove is fixed to a rotating shaft of the driving motor 2113, in this embodiment, the protrusion 7 is fixed to the rotating shaft, a pressing plate 8 facing the protrusion 7 is fixed to an inner side wall of the anchoring head 1, a telescopic spring 9 is fixedly connected between the pressing plate 8 and the inner side wall of the anchoring head 1, the pressing plate 8 abuts against the protrusion 7, when the pressing plate 8 abuts against the protrusion 7, the rotating shaft of the driving motor 2113 stops rotating, the cross section of the protrusion 7 is triangular, the thickness of the protrusion 7 gradually increases from vertexes to side opposite to the vertexes, the protrusion 7 includes a -th side 71 and a second side 72, when the driving motor 2113 rotates forwards, the pressing plate 8 abuts against the -th side 71 of the protrusion 7, and when the driving motor 2113 rotates backwards, the pressing plate 8 abuts against the second side 72 of.

Referring to fig. 3 and 4, at least two clamping plates 5 are fixed on the inner wall of the anchor head 1, a cylindrical clamping block 6 is formed by protruding the side of the driving motor 2113, the clamping plates 5 are arranged towards the clamping block 6, a rectangular fixing plate 52 with an arc-shaped side is fixed at the end of the clamping plate 5 close to the clamping block 6, the fixing plate 52 with an arc-shaped side is attached to the driving motor 2113, an arc-shaped clamping groove 51 is recessed at the side of the fixing plate 52 attached to the motor, an inlet for the clamping block 6 to enter is arranged at the end of the clamping groove 51, the clamping block 6 is inserted into the clamping groove 51, when the driving motor 2113 rotates, the clamping block 6 slides in the clamping groove 51, in the embodiment, there are two clamping plates 5, and.

When the driving motor 2113 rotates forward, the protrusion 7 abuts against the slot 51, and when the driving motor 2113 rotates backward, the pressing plate 8 abuts against the protrusion 7.

Referring to fig. 5, the movable sleeve 212 and the driven bevel gear 2112 are coaxial, the end of the movable sleeve 212 is open, the central angle subtended by the chord on the cross section of the drill bit 13 is 90 degrees, the section of the open end of the movable sleeve 212 is equal to the cross section of the drill bit 13, the drill bit 13 is inserted in the movable sleeve 212, the front end of the drill bit 13 is at the same side as the open end of the movable sleeve 212, the drill bit 13 is slidably connected with the movable sleeve 212, the front end of the drill bit 13 is fixed with a circular cake-shaped limiting block 213, and the limiting block 213 is abutted against the open end of the.

The elastic piece 22 is placed in the movable sleeve 212, the elastic piece 22 is fixedly connected between the bottom wall of the movable sleeve 212 and the tail end of the drill bit 13, and when the limiting piece limits the extension of the drill bit 13, the tail end of the drill bit 13 abuts against the elastic piece 22. In this embodiment, the elastic member 22 is a spring. The restricting member is a rectangular safety valve 12 fixed to the inner wall of the through hole 11, and the safety valve 12 abuts against the restricting block 213.

The working conditions and principles of the embodiment 1 are as follows:

the driving motor 2113 is started, the driving motor 2113 drives the driving bevel gear 2111 to rotate, the driving bevel gear 2111 drives the driven bevel gear 2112 to rotate so as to enable the movable sleeve 212 to rotate, the drill bit 13 and the movable sleeve 212 rotate coaxially, the safety valve 12 is ejected by the drill bit 13, the elastic piece 22 pushes the drill bit 13 outwards, and the drill bit 13 drills into the rock-soil body under the ejecting force of the elastic piece 22 and the rotation of the movable sleeve 212.

The driving motor 2113 is arranged to drive the drill bits 13 to synchronously drill into the rock-soil body, the drill bits 13 play a role of pins between the anchoring head 1 and the rock-soil body, so that the anchoring head 1 is fixed with the rock-soil body, the drill bits 13 extending out from the anchoring head 1 in the lateral direction enhance the connection strength of the anchoring head 1 and the rock-soil body, and the strength of bearing tension of the rock-soil body is increased.

When the drill bit 13 does not work, the safety valve 12 is abutted against the front end of the drill bit 13, so that the drill bit 13 is retracted in the movable sleeve 212, and when the anchoring head 1 is installed in the anchoring hole, the drill bit 13 is not easy to extend out of the through hole 11 and can cut workers. The drill bit 13 placed in the movable sleeve 212 reduces the space occupied by the anchoring head 1 outside the anchoring head 1, the size of the anchoring head 1 is small, the carrying of the anchoring head 1 is facilitated, the anchoring head 1 with small size is not prone to touching the side wall of the anchoring hole, and the anchoring head 1 is convenient to place in a specified position.

By arranging the sand-proof cover 4, sand in the anchoring hole is not easy to enter the anchoring head 1 from the through hole 11 in the installation process of the anchoring head 1 and is clamped in the grooves of the driving helical gear 2111 and the driven helical gear 2112, so that the occlusion of the driving helical gear 2111 and the driven helical gear 2112 is influenced, teeth on the driving helical gear 2111 and the driven helical gear 2112 are damaged, and is further caused to cause the long-time blocking at the connection part of the driving motor 2113 and the driving helical gear 2111, so that the driving motor 2113 is damaged.

Through the cooperation that sets up movable sleeve 212 and elastic component 22, drive drill bit 13 coaxial rotation through the movable sleeve 212 fixed with driven helical gear 2112, elastic component 22 exerts the thrust that pushes away from movable sleeve 212 to drill bit 13, the cooperation of elastic component 22 and movable sleeve 212 for drill bit 13 is at the pivoted in-process, under the effect of the thrust of elastic component 22, after boring relief valve 12, sand prevention lid 4, in boring into the ground body, because of there is great frictional force between drill bit 13 and the ground body, drill bit 13 is fixed in the ground body. The rotation of the drill bit 13 reduces the contact area and local pressure of the drill bit 13 with the rock-soil mass, and facilitates the extension of the drill bit 13 into the rock-soil mass.

Through being circumference evenly distributed with drill bit 13 for the atress of anchor head 1 is roughly evenly distributed, and the compressive area between drill bit 13 and the ground body is great, has strengthened the joint strength between anchor head 1 and the ground body, has strengthened the intensity that bears the tension of ground body.

Through can dismantle driving motor 2113 and anchor head 1 and be connected for after anchor head 1 anchors, the pivot reversal on the driving motor 2113, because of drill bit 13 has already anchored with the ground body this moment, make initiative helical gear 2111 block, driving motor 2113 rotation this moment, epaxial lug 7 of commentaries on classics appears along with the pivot reversal, until lug 7 and clamp plate 8 butt, fixture block 6 breaks away from draw-in groove 51 this moment, then alright take out driving motor 2113 from the anchor downthehole, carry out reuse, construction engineering's cost has been reduced.

Through the occlusion of the driving bevel gear 2111 and the driven bevel gear 2112, the driving bevel gear 2111 is driven to rotate by the driving motor 2113 to indirectly drive the movable sleeve 212 to rotate, the length of the drill bit 13 extending into the rock-soil body is controlled to be in a proper length through controlling the number of rotation turns of the driving motor 2113, and the drill bit 13 is not easy to break when stressed. When the drill bit 13 fixed with the rock-soil body takes out the driving motor 2113, the drill bit 13 limits the reverse rotation of the driving bevel gear 2111, so that the rotating shaft of the driving motor 2113 can be conveniently taken out of the driving bevel gear 2111.

The teeth on the driving bevel gear 2111 and the driven bevel gear 2112 are inclined at 45 degrees, so that the shaft of the driving bevel gear 2111 is not coplanar and vertical to the axis of the drill bit 13, a plurality of driven bevel gears 2112 can be installed on the same cross section of the driving bevel gear 2111, a plurality of drill bits 13 can be synchronously extended and drilled into the rock-soil body through the rotation of the driving bevel gear 2111, and the drill bits 13 are drilled into the rock-soil body from a position which is parallel to the diameter of the cross section of the anchoring head 1 for a certain distance, so that the actual shearing resistant area of the drill bits 13 is larger than the cross section area thereof, the connection strength between the whole body of the plurality of drill bits 13 and the rock-soil body is improved, and the strength of the tensile force of the rock-soil body is enhanced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

The utility model provides an kind of anchor device, including anchor head (1), its characterized in that be provided with a plurality of drill bit (13) in anchor head (1), be provided with on anchor head (1) and supply through-hole (11) that drill bit (13) stretched out, install drive arrangement (2) that drive a plurality of drill bit (13) synchronous rotation and bore the ground body on anchor head (1), be provided with the restriction on anchor head (1) drill bit (13) do not work the restriction that stretches out through-hole (11) when, work as drive arrangement (2) drive when drill bit (13) rotate and bore the ground body, drill bit (13) stretch out through-hole (11).
2. kinds of anchoring device according to claim 1, comprising an elastic member (22) for driving the bit (13) to protrude from the through hole (11) and a driving unit (21) for driving the bit (13) to rotate, wherein the restricting member comprises a safety valve (12) provided on a wall of the through hole (11), and the safety valve (12) abuts against a front end of the bit (13).
3. kinds of anchoring device according to claim 2, wherein the driving assembly (21) includes a driving member (211) and a movable sleeve (212), the movable sleeve (212) is rotatably connected with the driving member (211), the drill bit (13) is placed in the movable sleeve (212), the drill bit (13) is slidably connected with the movable sleeve (212), the elastic member (22) is placed between the distal end of the drill bit (13) and the movable sleeve (212), and when the front end of the drill bit (13) abuts against the safety valve (12), the distal end of the drill bit (13) abuts against the elastic member (22).
4. kinds of anchor device according to claim 3, wherein the driving member (211) includes a driving bevel gear (2111), driven bevel gears (2112) provided in number with the drill (13) and a driving motor (2113) for driving the driving bevel gears (2111) to rotate, the rotating shaft of the driving motor (2113) is coaxial with the driving bevel gears (2111), each driven bevel gear (2112) is engaged with the driving bevel gear (2111), each movable sleeve (212) is correspondingly and fixedly connected with driven bevel gears (2112), and the movable sleeve (212) is coaxial with the driven bevel gears (2112).
5. kinds of anchoring devices according to claim 3 or 4, characterized in that the anchoring head (1) is provided with a sand-proof cover (4) for closing and opening the through hole (11).
6. kinds of anchoring devices according to claim 5, characterized in that the side of the sand control cover (4) is movably connected with the anchoring head (1).
7. kinds of anchoring device according to claim 4, wherein a plurality of said driven helical gears (2112) are uniformly arranged around the circumference of said driving helical gear (2111).
8. kinds of anchoring devices according to claim 4, wherein the driving motor (2113) is detachably connected to the anchoring head (1).
9. The kinds of anchoring devices of claim 8, wherein the anchoring head (1) is provided with at least two clamping plates (5), the driving motor (2113) is provided with a clamping block (6), the clamping plates (5) are provided with clamping grooves (51), when the driving motor (2113) rotates, the clamping block (6) slides in the clamping groove (51), the clamping block (6) is clamped with the clamping groove (51), a convex block (7) or a groove is convexly arranged on a rotating shaft of the driving motor (2113), an elastic pressing plate (8) for limiting the rotation of the convex block (7) or the groove is arranged on the anchoring head (1) towards the convex block (7) or the groove, the pressing plate (8) is abutted against the convex block (7) or the groove, when the driving motor (2113) rotates reversely, the positive rotation clamping block (6) is clamped with the clamping groove (51), and when the driving motor (2113) rotates reversely, the pressing plate (8) is abutted against the convex block (7) or the groove.