CN216342256U - Double-expansion-mechanism combined anchor rod - Google Patents
Double-expansion-mechanism combined anchor rod Download PDFInfo
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- CN216342256U CN216342256U CN202123332166.8U CN202123332166U CN216342256U CN 216342256 U CN216342256 U CN 216342256U CN 202123332166 U CN202123332166 U CN 202123332166U CN 216342256 U CN216342256 U CN 216342256U
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- anchor rod
- expansion
- rod
- expansion mechanism
- seam pipe
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Abstract
The utility model relates to the field of engineering support and discloses a double-expansion-mechanism combined anchor rod which comprises a seam pipe anchor rod body, wherein a conical structure is arranged at the left end part of the seam pipe anchor rod body, a first expansion mechanism is arranged on the seam pipe anchor rod body on the right side of the conical structure, a baffle ring is arranged at the right end part of the seam pipe anchor rod body, a second expansion mechanism is arranged on the seam pipe anchor rod body on the left side of the baffle ring, a threaded steel anchor rod body is arranged in a seam pipe of the seam pipe anchor rod body, the threaded steel anchor rod body penetrates through the first expansion mechanism and the second expansion mechanism from left to right, and the right end part of the threaded steel anchor rod body extends out of the baffle ring and is in threaded connection with a damping hexagonal nut at the outer end part. The utility model has the beneficial effects that: the combined anchor rod is provided with the double-expansion mechanism and the deformed steel anchor rod, so that the overall strength of the anchor rod can be effectively improved, and the overall anchoring force can be improved; it is simple to operate and convenient to use.
Description
Technical Field
The utility model relates to the field of engineering support, in particular to a combined anchor rod with double expansion mechanisms.
Background
In engineering construction and construction, support construction is carried out according to different conditions, and anchor rod support is a common method. The anchor bolt support is a reinforcing support mode which is adopted in surface engineering such as side slopes, rock deep foundation pits and the like and underground construction such as tunnels, stopes and the like by utilizing the mechanical effects of reinforcement, span reduction, suspension, combined arches, combined beams and the like, and is particularly common in mine support. Specifically, in bolt support, an anchor drilling machine is generally used to drive a hole with a predetermined depth and diameter, a rod column made of a specific material is driven into the hole, and a special structure of a head part and a rod body and a tail supporting plate are utilized to combine surrounding rocks and a stable rock mass to generate a suspension effect, a combination beam effect and a reinforcement effect, so as to achieve the support effect.
In the anchor bolt support, the anchor bolt is a main component, and the quality of the anchor bolt directly determines the anchoring effect. At present, the seam pipe anchor rod is favored by many users due to the characteristics of convenient use, light weight and convenient mechanical construction. However, the existing tube-in-tube anchor rod is generally provided with an expansion structure at the inner end part, and the self strength of the tube-in-tube anchor rod is low, so that the overall anchoring force is low, and the tube-in-tube anchor rod is restrained in use.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the combined anchor rod with the double expansion mechanisms, the combined anchor rod is provided with the double expansion mechanisms and the threaded steel anchor rod body, the overall strength and the overall anchoring force of the anchor rod can be effectively improved, the operation is simple, and the use is convenient.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a two expansion mechanism combination formula stock, includes the seam pipe stock body of rod, seam pipe stock body of rod left end portion is equipped with the toper structure, be equipped with first expansion mechanism on the seam pipe stock body of rod on toper structure right side, seam pipe stock body of rod right end portion is equipped with keeps off the ring, it is equipped with second expansion mechanism on the left seam pipe stock body of rod of ring to keep off, be equipped with the screw-thread steel stock body of rod in the seam pipe of the seam pipe stock body of rod, run through first expansion mechanism and second expansion mechanism about the screw-thread steel stock body of rod, screw-thread steel stock body of rod right-hand member portion stretches out and keeps off the ring and at outer tip threaded connection damping hexagonal nut.
Preferably, the first expansion mechanism and the second expansion mechanism are identical in structure and comprise wedge-shaped nuts screwed on the threaded steel anchor rod body in a threaded mode, thick ends of the wedge-shaped nuts are close to the conical structures, and wedge-shaped self-locking expansion pieces matched with the wedge-shaped nuts are arranged on the two sides of the wedge-shaped nuts.
Preferably, a plurality of wedge-shaped protrusions are transversely and fixedly arranged on the outer surface of the self-locking expansion sheet.
Preferably, the self-locking expansion sheet is fixedly connected with the fixing sheet respectively, and the left end part of the fixing sheet is fixedly connected with the two sides of the lantern ring.
Preferably, the inner surface of the lantern ring is fixedly provided with a bulge matched with the threaded steel anchor rod body.
Preferably, rectangular through holes matched with the self-locking expansion pieces are respectively embedded in the rod body of the seam tube anchor rod outside the self-locking expansion pieces.
Preferably, the right end part of the inner surface of the self-locking expansion sheet is also provided with an arc-shaped groove matched with the threaded steel anchor rod body.
Preferably, the outer surface of the threaded steel anchor rod body is provided with external threads in a left-right penetrating mode.
Compared with the prior art, the utility model provides a combined anchor rod with double expansion mechanisms, which has the following beneficial effects:
1. according to the utility model, the hexagonal nut is rotated, the wedge-shaped nut is pulled, the wedge-shaped nut enters the self-locking expansion sheet, and the self-locking expansion sheet is expanded through the movement of the wedge-shaped surface, so that the anchoring force of the seam pipe anchor rod is enhanced.
2. The first expansion mechanism and the second expansion mechanism are arranged, so that the rock mass expansion mechanism can be tightly combined with the inner wall of the drilled hole of the rock mass, the friction force can be increased by 50%, the anchoring effect is strengthened, and no anchoring agent is used.
3. The threaded steel anchor rod body is added in the seam tube anchor rod body, so that the tensile strength and the shear strength of the seam tube anchor rod body are improved, and the overall anchoring effect is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a first expansion mechanism;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;
the following are marked in the figure: 1. a tube-seamed anchor rod body; 11. a tapered structure; 12. a rectangular through hole; 2. a baffle ring; 3. a first expansion mechanism; 31. self-locking expansion sheets; 311. a wedge-shaped protrusion; 32. a wedge nut; 321. a wedge-shaped surface; 33. a fixing sheet; 34. a collar; 341. a protrusion; 4. a second expansion mechanism; 5. a deformed steel anchor rod body; 51. an external thread; 6. and a damping hexagonal nut.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the utility model, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1
As shown in fig. 1 to 3, a two expansion mechanism combination formula stock, including seam pipe stock body of rod 1, 1 left end portion of seam pipe stock body of rod is equipped with toper structure 11, be equipped with first expansion mechanism 3 on the seam pipe stock body of rod 1 on toper structure 11 right side, 1 right-hand member portion of seam pipe stock body of rod is equipped with keeps off ring 2, keep off and be equipped with second expansion mechanism 4 on 2 left seam pipe stock body of rod 1 of ring, be equipped with the screw thread steel stock body of rod 5 in the seam pipe of seam pipe stock body of rod 1, run through first expansion mechanism 3 and second expansion mechanism 4 about the screw thread steel stock body of rod 5, 5 right-hand member portions of screw thread steel stock body of rod stretch out and keep off ring 2 and at outer tip threaded connection damping hexagonal nut 6.
Through the arrangement of the first expansion mechanism and the second expansion mechanism, the expansion mechanism can be tightly combined with the inner wall of the drilled hole of the rock body, the friction force can be increased by 50%, the anchoring effect is strengthened, and no anchoring agent is used.
Example 2
As shown in fig. 2, a double-expansion-mechanism combined anchor rod is based on embodiment 1, and is different from embodiment 1 in that a first expansion mechanism 3 and a second expansion mechanism 4 have the same structure and both include a wedge nut 32 screwed on a threaded steel anchor rod body 5, the thick end of the wedge nut 32 is close to a tapered structure 11, and wedge self-locking expansion pieces 31 matched with the wedge nut 32 are arranged on both sides of the wedge nut 32.
The wedge-shaped nut is pulled by rotating the hexagonal nut, enters the self-locking expansion sheet, moves through the wedge-shaped surface, and expands the self-locking expansion sheet, so that the anchoring force of the seam pipe anchor rod is enhanced.
Example 3
As shown in fig. 2, a combined anchor rod with double expansion mechanisms is different from embodiment 2 in that a plurality of wedge-shaped protrusions 311 are transversely arranged and fixed on the outer surface of a self-locking expansion piece 31.
The arrangement of the wedge-shaped protrusions further increases the anchoring force.
Example 4
As shown in fig. 2, a double expansion mechanism combined anchor rod is different from embodiment 3 in that self-locking expansion pieces 31 are respectively fixedly connected with a fixing piece 33, and the left end part of the fixing piece 33 is fixedly connected with both sides of a lantern ring 34 on the basis of embodiment 3.
The self-locking expansion sheet is fixed through the lantern ring and the fixing sheet.
Example 5
As shown in fig. 2, a double expansion mechanism combined anchor rod is different from embodiment 4 in that a protrusion (341) matched with a thread steel anchor rod body (5) is fixedly arranged on the inner surface of a lantern ring (34). The protrusion can further increase the matching of the lantern ring and the screw-thread steel anchor rod body.
Example 6
As shown in fig. 1, a double-expansion mechanism combined anchor is different from embodiment 5 in that rectangular through holes 12 matched with self-locking expansion pieces 31 are respectively embedded in a slotted anchor rod body 1 outside the self-locking expansion pieces 31 on the basis of embodiment 5.
The self-locking expansion sheet can be fixed through the rectangular through hole, and the axial movement of the self-locking expansion sheet is prevented.
Example 7
Referring to fig. 1, a combined anchor rod with double expansion mechanisms is provided with embodiment 6, which is different from embodiment 6 in that the right end part of the inner surface of the self-locking expansion sheet 31 is further provided with an arc-shaped groove (not shown) matched with the bolt body 5 of the screw-thread steel anchor rod.
The self-locking expansion sheet and the threaded anchor rod body can be fully attached through the arrangement of the arc-shaped groove, and the anchor rod is convenient to mount in the anchor hole integrally.
Example 7
As shown in fig. 1, in embodiment 1, a double expansion mechanism combined anchor is different from embodiment 1 in that an external thread 51 penetrates right and left of the outer surface of a screw steel anchor rod body 5.
The utility model can enhance the initial anchoring force of the anchor rod by rotating the damping hexagon nut. Meanwhile, the strength of the anchor rod is effectively improved due to the fact that the inner threaded steel anchor rod body (solid anchor rod) is added, and the anchoring force of the anchor rod is greatly improved. Meanwhile, the utility model has the advantages of reasonable structure, low production cost and convenient installation, can obviously improve the safety performance of roadway construction when in on-site use, greatly reduces the cost and improves the production efficiency.
The components used in the present invention are all common standard components or components known to those skilled in the art, and the structure and principle thereof are well known to those skilled in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a two expansion mechanism combination formula stock, includes seam pipe stock body of rod (1), seam pipe stock body of rod (1) left end portion is equipped with toper structure (11), its characterized in that: be equipped with first expansion gear (3) on the seam pipe stock body of rod (1) on toper structure (11) right side, seam pipe stock body of rod (1) right-hand member portion is equipped with keeps off ring (2), keep off and be equipped with second expansion gear (4) on the left seam pipe stock body of rod (1) of ring (2), be equipped with screw-thread steel stock body of rod (5) in the seam pipe of the seam pipe stock body of rod (1), the screw-thread steel stock body of rod (5) is controlled and is run through first expansion gear (3) and second expansion gear (4), screw-thread steel stock body of rod (5) right-hand member portion stretches out and keeps off ring (2) and outside tip threaded connection damping hexagonal nut (6).
2. A dual expansion mechanism combination anchor rod according to claim 1, wherein: first expansion machanism (3) and second expansion mechanism (4) structure are the same, all twist wedge nut (32) on the screw-thread steel stock body of rod (5) including the screw thread, the butt of wedge nut (32) is close to toper structure (11), wedge nut (32) both sides are equipped with self-mating wedge auto-lock expansion piece (31).
3. A dual expansion mechanism combination anchor rod according to claim 2, in which:
the outer surface of the self-locking expansion sheet (31) is transversely and fixedly provided with a plurality of wedge-shaped bulges (311).
4. A dual expansion mechanism combination anchor rod according to claim 2, in which: the self-locking expansion sheet (31) is fixedly connected with the fixing sheet (33) respectively, and the left end part of the fixing sheet (33) is fixedly connected with the two sides of the lantern ring (34).
5. A dual expansion mechanism combination anchor rod according to claim 4, in which: and a bulge (341) matched with the threaded steel anchor rod body (5) is fixedly arranged on the inner surface of the lantern ring (34).
6. A dual expansion mechanism combination anchor rod according to claim 2, in which: rectangular through holes (12) matched with the self-locking expansion pieces (31) are respectively embedded in the seam tube anchor rod body (1) on the outer sides of the self-locking expansion pieces (31).
7. A dual expansion mechanism combination anchor rod according to claim 2, in which: the right end part of the inner surface of the self-locking expansion sheet (31) is also provided with an arc-shaped groove matched with the threaded steel anchor rod body (5).
8. A dual expansion mechanism combination anchor rod according to claim 1, wherein: and the outer surface of the threaded steel anchor rod body (5) is provided with external threads (51) in a left-right through mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123332166.8U CN216342256U (en) | 2021-12-28 | 2021-12-28 | Double-expansion-mechanism combined anchor rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123332166.8U CN216342256U (en) | 2021-12-28 | 2021-12-28 | Double-expansion-mechanism combined anchor rod |
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| CN216342256U true CN216342256U (en) | 2022-04-19 |
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| CN202123332166.8U Active CN216342256U (en) | 2021-12-28 | 2021-12-28 | Double-expansion-mechanism combined anchor rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095365A (en) * | 2022-06-23 | 2022-09-23 | 中山大学 | Neutral point reinforced telescopic tensile anchor rod |
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2021
- 2021-12-28 CN CN202123332166.8U patent/CN216342256U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095365A (en) * | 2022-06-23 | 2022-09-23 | 中山大学 | Neutral point reinforced telescopic tensile anchor rod |
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