CN215408719U - Self-advancing and self-expanding integrated enlarged footing anchor rod - Google Patents
Self-advancing and self-expanding integrated enlarged footing anchor rod Download PDFInfo
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- CN215408719U CN215408719U CN202121776822.0U CN202121776822U CN215408719U CN 215408719 U CN215408719 U CN 215408719U CN 202121776822 U CN202121776822 U CN 202121776822U CN 215408719 U CN215408719 U CN 215408719U
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- anchor rod
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Abstract
The utility model discloses a self-advancing and self-expanding integrated enlarged footing anchor rod, which relates to the field of anchor rods and comprises a drill bit and movable connecting rods, wherein movable connecting rod sleeves are uniformly arranged along the circumferential direction of the drill bit; the drill bit is characterized by also comprising a force transmission screw rod, wherein one end of the force transmission screw rod is provided with threads and is in threaded connection with the drill bit, and the other end of the force transmission screw rod is provided with a spline shaft; the inner hole of the torque transmission sleeve is sequentially provided with a hexagonal counter bore section, a round hole section and a taper hole section from bottom to top; according to the utility model, the force transmission screw rod, the drill bit and the anchor rod body are integrally designed, so that the integrated operation of drilling, anchoring, grouting and anchoring is realized, the quick switching of the drilling operation and the drill bit expansion operation state is realized through the connection state switching of the torque transmission sleeve, and the one-time anchoring and one-time molding of the drill bit and the anchor rod body are realized.
Description
Technical Field
The utility model relates to the field of anchor rods, in particular to a self-advancing and self-expanding integrated enlarged footing anchor rod.
Background
In the practice of suspension cable construction engineering such as suspension bridges, cableways and the like, the anchoring end of a suspension cable needs to be anchored in an anchoring mode, the tension of a main cable is transmitted to rocks or soil on two banks, and the suspension cable is guaranteed to have enough bearing capacity; the anchor ingot commonly used at present has the following forms: pile type anchor, anchor rod type anchor and horizontal anchor. The traditional pile type anchor and horizontal anchor construction has large workload and long operation time, and is difficult to construct under the terrain conditions of rocks, stone-included soil and the like; the anchor rod and the anchor ingot are drilled through the drilling machine, and then are anchored and grouted, so that the operation adaptability to the terrain is strong, and the operation speed is relatively high. However, the conventional anchor rod and anchor ingot also has the problem of small single-anchor anchoring force, particularly in pure soil conditions; in addition, drilling and anchoring are usually performed step by step, which affects the operation efficiency.
Through retrieval, chinese patent No. CN108343057A discloses an expanding anchor with enlarged head, which can effectively drive the anchor by using the structure of the anchor, and the tapered part can be opened to improve the pulling resistance of the anchor, but drilling and anchoring are usually performed step by step, which affects the operation efficiency, and the rapid switching between the drilling operation and the drill bit expanding operation can not be realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a self-advancing and self-expanding integrated enlarged head anchor rod.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a self-advancing and self-expanding integrated enlarged footing anchor rod comprises a drill bit and movable connecting rods, wherein movable connecting rod sleeves are uniformly arranged along the circumferential direction of the drill bit;
the drill bit is characterized by also comprising a force transmission screw rod, wherein one end of the force transmission screw rod is provided with threads and is in threaded connection with the drill bit, and the other end of the force transmission screw rod is provided with a spline shaft;
and the inner hole of the torque transmission sleeve is sequentially provided with a hexagonal counter bore section, a round hole section and a taper hole section from bottom to top.
As a further scheme of the utility model: the lower end of the round hole section is provided with a key slot, and the upper end of the round hole section is provided with a key slot.
As a further scheme of the utility model: the connecting device is characterized by further comprising a connector, wherein one end of the connector is movably connected with the movable connecting rod, and the other end of the connector is in a hexagonal boss shape and is connected with the torque transmission sleeve.
As a further scheme of the utility model: and the hexagonal counter bore formed in the hexagonal counter bore section is matched and connected with one end of the connector in a hexagonal boss shape.
As a further scheme of the utility model: the round hole section is connected with a spline shaft at one end of the force transmission screw in a matching way through a spline groove at the bottom end of the round hole section.
As a further scheme of the utility model: the taper hole in-connection that the taper hole section was seted up has the stock body.
Compared with the prior art, the utility model has the beneficial effects that:
1. through will pass power screw rod, drill bit and stock body integrated design, realized drilling, anchor, slip casting and anchor integration operation.
2. When the hole depth meets the requirement, the drilling machine stops and pulls out the torque transmission sleeve, the connector is disconnected with the torque transmission sleeve at the moment, and one end of the spline shaft of the force transmission screw rod is meshed with the spline groove of the torque transmission sleeve;
when the drilling machine is started, power is transmitted to the force transmission screw rod through the anchor rod body and the torque transmission sleeve to drive the force transmission screw rod to rotate, the threaded end of the force transmission screw rod converts rotary motion into linear motion, the distance between the drill bit and the connector is shortened, and the movable connecting rod is driven to automatically expand;
in conclusion, through the connection state conversion of the torque transmission sleeve, the rapid conversion of the drilling operation and the drill bit expansion operation state is realized, and the one-time anchoring and one-time forming of the drill bit and the anchor rod body are realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.
Fig. 1 is a schematic view of an overall structure of a self-advancing and self-expanding integrated anchor rod with an enlarged head according to the present invention;
fig. 2 is a schematic view of a self-advancing and self-expanding integrated enlarged head anchor rod according to the present invention in a drilling state;
FIG. 3 is a schematic view of a self-advancing and self-expanding integrated enlarged head anchor rod drilling machine in a shutdown state;
fig. 4 is a schematic structural diagram of a self-advancing and self-expanding integrated partition plate of an enlarged footing anchor rod according to the present invention.
In the figure: 1. a drill bit; 2. a movable connecting rod; 3. a connector; 4. a force transmission screw rod; 5. a torque transmission sleeve; 6. an anchor body; 7. a spline shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1-3, the present invention provides a technical solution: a self-advancing and self-expanding integrated enlarged footing anchor rod comprises a drill bit 1 and movable connecting rods 2, wherein the movable connecting rods 2 are uniformly arranged along the circumferential direction of the drill bit 1 in a sleeved mode;
the anchor rod is characterized by further comprising a force transmission screw rod 4, wherein one end of the force transmission screw rod 4 is provided with threads and is in threaded connection with the drill bit 1, the other end of the force transmission screw rod 4 is provided with a spline shaft 7, and an anchor rod body 6 is connected in a taper hole formed in the taper hole section; the inner hole of the transmission sleeve 5 is sequentially provided with a hexagonal counter bore section, a round hole section and a taper hole section from bottom to top, the lower end of the round hole section is provided with a key groove, the upper end of the round hole section is provided with a key-free groove, and the round hole section is in fit connection with a spline shaft 7 at one end of the transmission screw rod 4 through the key groove at the bottom end of the round hole section.
Specifically, as shown in fig. 2, when the lower anchor is used for drilling, the torque required by the drill bit 1 transmitted from the anchor rod body 6 by the drilling machine is transmitted, and at the moment, one end of the spline shaft 7 of the force transmission screw rod 4 is located at a keyway-free section of the force transmission sleeve 5, so that the driving spline is unloaded;
as shown in fig. 3, another situation of this embodiment is specifically: when the hole depth meets the requirement, the drilling machine stops and pulls out the torque transmission sleeve 5, at the moment, the connector 3 is disconnected with the torque transmission sleeve 5, and one end of the spline shaft 7 of the force transmission screw rod 4 is meshed with the spline groove with the torque transmission sleeve 7.
Example 2
As shown in fig. 4, on the basis of embodiment 1, this embodiment provides another technical solution: the hexagonal counter bore type connecting device comprises a connector 3, one end of the connector 3 is movably connected with a movable connecting rod 2, the other end of the connector is in a hexagonal boss shape and is connected with a transmission sleeve 5, and a hexagonal counter bore formed in a hexagonal counter bore section is in fit connection with one end of the connector 3 in the hexagonal boss shape.
Specifically, when the drilling machine is started, power is transmitted to the force transmission screw rod 4 through the anchor rod body 1 and the force transmission sleeve 5, the force transmission screw rod 4 is driven to rotate, the threaded end of the force transmission screw rod 4 converts rotary motion into linear motion, the drill bit 1 and the connector 3 are pulled close, and therefore the movable connecting rod 2 is driven to be automatically unfolded.
The working principle is as follows: firstly, when an anchor is put into a hole to be drilled, the torque required by the drill bit 1 transmitted from a drilling machine through the anchor rod body 6 is transmitted, and at the moment, one end of a spline shaft 7 of a force transmission screw rod 4 is positioned at a keyway-free section of a force transmission sleeve 5 to drive the spline to be unloaded; secondly, when the hole depth meets the requirement, the drilling machine stops and pulls out the torque transmission sleeve 5, the connector 3 is disconnected with the torque transmission sleeve 5 at the moment, and one end of the spline shaft 7 of the force transmission screw rod 4 is meshed with the spline groove with the torque transmission sleeve 7; and finally, when the drilling machine is started, power is transmitted to the force transmission screw rod 4 through the anchor rod body 1 and the force transmission sleeve 5 to drive the force transmission screw rod 4 to rotate, the threaded end of the force transmission screw rod 4 converts rotary motion into linear motion, the distance between the drill bit 1 and the connector 3 is shortened, and the movable connecting rod 2 is driven to automatically unfold.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. A self-advancing and self-expanding integrated enlarged footing anchor rod comprises a drill bit (1) and movable connecting rods (2), and is characterized in that the movable connecting rods (2) are uniformly arranged along the circumferential direction of the drill bit (1); the drill bit is characterized by further comprising a force transmission screw rod (4), wherein one end of the force transmission screw rod (4) is provided with threads and is in threaded connection with the drill bit (1), and the other end of the force transmission screw rod is provided with a spline shaft (7); the inner hole of the torque transmission sleeve (5) is sequentially provided with a hexagonal counter bore section, a round hole section and a taper hole section from bottom to top.
2. The self-advancing and self-expanding integrated enlarged footing anchor rod as claimed in claim 1, wherein the lower end of the circular hole section is provided with a key slot, and the upper end of the circular hole section is provided with no key slot.
3. The self-advancing and self-expanding integrated enlarged footing anchor rod as claimed in claim 1, further comprising a connector (3), wherein one end of the connector (3) is movably connected with the movable connecting rod (2), and the other end thereof is in a hexagonal boss shape and is connected with the torque sleeve (5).
4. The self-advancing and self-expanding integrated enlarged footing anchor rod as claimed in claim 1, wherein the hexagonal counter bore formed in the hexagonal counter bore section is connected with the end of the connector (3) in a hexagonal boss shape in a matching manner.
5. The self-advancing and self-expanding integrated enlarged footing anchor rod as claimed in claim 2, wherein the circular hole section is connected with the spline shaft (7) at one end of the force transmission screw rod (4) in a matching way through the spline groove at the bottom end of the circular hole section.
6. The self-advancing and self-expanding integrated enlarged footing anchor rod as claimed in claim 1, wherein the tapered hole section is provided with a tapered hole in which the anchor rod body (6) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121776822.0U CN215408719U (en) | 2021-08-02 | 2021-08-02 | Self-advancing and self-expanding integrated enlarged footing anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121776822.0U CN215408719U (en) | 2021-08-02 | 2021-08-02 | Self-advancing and self-expanding integrated enlarged footing anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215408719U true CN215408719U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121776822.0U Active CN215408719U (en) | 2021-08-02 | 2021-08-02 | Self-advancing and self-expanding integrated enlarged footing anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215408719U (en) |
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2021
- 2021-08-02 CN CN202121776822.0U patent/CN215408719U/en active Active
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