CN217298907U

CN217298907U - Reversal anchor rod of twisted umbrella type

Info

Publication number: CN217298907U
Application number: CN202220158572.2U
Authority: CN
Inventors: 朱德胜; 孟凡雨; 徐江
Original assignee: Yangzhou University
Current assignee: Yangzhou University
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-08-26
Anticipated expiration: 2032-01-20

Abstract

The utility model relates to a revolve recoverable stock of formula of twisting umbrella type belongs to stock technical field. The screwing type umbrella-shaped recoverable anchor rod comprises a driving anchor head and a rotating main rod, wherein a groove is formed in the driving anchor head, and a tenon which is embedded with the groove is arranged at the front end of the rotating main rod; a thread section is arranged in the middle of the rotating main rod, a ring nut is assembled on the thread section in a threaded manner, a plurality of movable anchor grippers for anchoring are fixedly connected to the driving anchor head, an expansion rod is arranged on the ring nut corresponding to each movable anchor gripper, and the other end of each expansion rod is fixedly connected to the middle of the corresponding movable anchor gripper; the rear end of the rotating main rod is provided with a through hole, and a rotating handle rod penetrates through the through hole. The utility model has the characteristics of construction simple process, retrieve convenient etc, solved most of umbelliform stock effectively and retrieved difficulty and construction process complicated scheduling problem, improved the efficiency of construction, reduced environmental pollution.

Description

Reversal anchor rod of twisted umbrella type

Technical Field

The utility model relates to a revolve recoverable stock of formula of twisting umbrella type belongs to stock technical field.

Background

In recent years, with the continuous development of anchoring technology, anchor rods are more and more widely applied to deep foundation pits, side slopes and tunnels, and play an important role in engineering construction and construction safety guarantee. At present, the commonly used soil slope anchoring mode mainly takes drilling grouting as a main mode, but the grouting anchor rod has the following problems: (1) grouting maintenance is needed, the construction period is long, special equipment is needed, and the construction process is complex; (2) some anchor rods are not firmly connected with surrounding rock-soil bodies, and the length of the needed anchor rod is difficult to determine; (3) can not be recycled and is not environment-friendly.

In view of the above problems, many researchers have studied and proposed an end expanding anchor rod similar to an umbrella, i.e., an umbrella-shaped soil anchor. When the anchoring end of the novel expanding anchor rod is closed, the novel expanding anchor rod is in a shape like a folded umbrella, so that the novel expanding anchor rod occupies a small space and is convenient to hit into a soil body. When the anchor rod is pulled, the umbrella wing anchor plates are naturally opened along the supporting rods, the area between the umbrella wing anchor plates and the surrounding anchoring soil body is enlarged, external loads are diffused to the rock-soil layer by the umbrella wing anchor plates, and the required uplift bearing capacity is provided by means of the shear strength of the soil body.

However, the current umbrella-shaped soil anchor still has the following problems in engineering application: (1) most of the umbrella anchors still need grouting, and the construction is complex; (2) the recovery is difficult, even impossible; (3) the depth of cutting into the soil body is small, and the uplift bearing capacity is improved limitedly.

At present, strict requirements are placed on energy conservation and emission reduction in the building industry. Among them, the steel and cement industries involved in manufacturing the anchor rod are super major households of carbon emission. Aiming at the problems in the prior art and the national strategic requirements, a recyclable anchor rod with reasonable structure and high construction efficiency is developed, and the development of the anchor rod reinforcement technology can be further promoted.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a revolve recoverable stock of formula umbrella type of twisting, realize anchor and recovery under the condition of not slip casting.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a rotary-screwing umbrella type recoverable anchor rod, which comprises a driving anchor head and a rotary main rod, wherein the driving anchor head is provided with a groove, and the front end of the rotary main rod is provided with a tenon which is embedded with the groove;

a thread section is arranged in the middle of the rotating main rod, a ring nut is assembled on the thread section in a threaded manner, a plurality of movable anchor grippers for anchoring are fixedly connected to the driving anchor head, an expansion rod is arranged on the ring nut corresponding to each movable anchor gripper, and the other end of each expansion rod is fixedly connected to the middle of the corresponding movable anchor gripper;

the rear end of the rotating main rod is provided with a through hole, and a rotating handle rod penetrates through the through hole.

Furthermore, one end of the expansion rod is connected to the ring nut through a fixed rotating shaft, and the other end of the expansion rod is connected to the middle of the corresponding movable anchor claw through a fixed rotating shaft.

Furthermore, the movable anchor grab is connected with the driving anchor head through a fixed rotating shaft.

Further, the tenon of the rotating main rod is in smooth contact with the inner part of the groove of the driving anchor head.

Furthermore, the ring nut is matched with a thread section arranged on the rotating main rod.

Further, the length of the expansion rod is larger than that of the threaded section formed in the rotating main rod.

Further, the shaft of the rotating main rod and the thread section are integrally formed.

Further, the diameter of the rod body of the rotating main rod is larger than that of the ring nut.

Compared with the prior art, the utility model discloses the beneficial effect who reaches:

the utility model has the characteristics of construction simple process, retrieve convenient etc, solved most of umbelliform stock effectively and retrieved difficulty and construction process complicated scheduling problem, improved the efficiency of construction, reduced environmental pollution.

Drawings

Fig. 1 is a schematic structural view of the screw-on umbrella type recoverable anchor rod provided by the embodiment, which is driven into the soil body in a folded state;

fig. 2 is a schematic structural view of the screw-on umbrella type recoverable anchor rod provided by the embodiment driven into the soil body in an open state;

fig. 3 is a schematic structural view of the screw-on umbrella type recyclable anchor rod provided by the embodiment when folded;

fig. 4 is a structural schematic view of the screw-on umbrella type recoverable anchor rod provided by the embodiment when the anchor rod is opened;

FIG. 5 is a schematic structural view of the driving anchor head provided in this embodiment;

fig. 6 is a schematic structural diagram of the rotary main rod provided in the present embodiment;

in the figure: 1: driving in an anchor head; 2: rotating the main rod; 3: an expansion rod; 4: movable anchor grab; 5: a groove; 6: fixing the rotating shaft; 7: a ring nut; 8: a threaded segment; 9: screwing the handle bar; 10: a through hole; 11: a tenon.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. 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 present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, 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 present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 to 6, the present embodiment provides a screw-type umbrella-type recoverable anchor rod, which includes a driving anchor head 1 and a rotating main rod 2, wherein a groove 5 is formed on the driving anchor head 1, and a tenon 11 engaged with the groove 5 is arranged at the front end of the rotating main rod 2.

Specifically, the tenon 11 embedding of 2 front ends of rotatory mobile jib is hit in the recess 5 of seting up on the anchor head 1 alright accomplish and hit the concatenation of entering anchor head 1 and rotatory mobile jib 2, for the rotation that makes rotatory mobile jib 2 can not drive the rotation of hitting into anchor head 1, tenon 11 of rotatory mobile jib 2 with hit into the inside smooth contact of 5 recesses of anchor head 1.

The middle part of the rotating main rod 2 is provided with a thread section 8, the thread on the thread section 8 is provided with a ring nut 7, the driving anchor head 1 is fixedly connected with a plurality of movable anchor claws 4 for anchoring, the ring nut 7 is correspondingly provided with each movable anchor claw 4 is provided with an expansion rod 3, and the other end of each expansion rod 3 is fixedly connected with the middle part of the corresponding movable anchor claw 4.

Specifically, the rotating main rod 2 comprises a rod body, a thread section 8 is formed in the rod body, the thread section 8 and the rod body are integrally formed, and the ring nut 7 is matched with the thread section 8 formed in the rotating main rod 2 so that the thread section 8 moves up and down.

In order to prevent the ring nut 7 from rotating out of the position of the threaded section 8, the shank diameter of the rotary main lever 2 is greater than the diameter of the ring nut 7.

In this embodiment, the movable anchor grab 4 is connected with the driving anchor head 1 through a fixed rotating shaft 6, one end of the expansion rod 3 is connected on the ring nut 7 through the fixed rotating shaft 6, and the other end is connected in the middle of the corresponding movable anchor grab 4 through the fixed rotating shaft 6.

Specifically, in order to prevent the expansion rod 3 and the movable anchoring claw 4 from torsional damage when the rotating main rod 2 rotates, the strength of the fixed rotating shaft 6 is sufficiently high in this embodiment.

In order to ensure the anchoring force of the anchor rod, in the embodiment, the expansion rod 3 and the movable anchor claw 4 are arranged in pairs, and the number of the expansion rod and the movable anchor claw is not less than four pairs.

In order to enable the movable anchor claw 4 to penetrate into the soil body deeper, the length of the expansion rod 3 is larger than that of the threaded section 8 formed in the rotating main rod 2.

In order to balance the stress of the anchor rod in all directions, the opening angle and the distance between every two adjacent movable anchor flukes are the same.

In order to make the movable anchor catch 4 easily penetrate into the soil body, the tip of the movable anchor catch 4 selected in the embodiment is sharp enough.

In order to provide the anchor rod with a long-term and effective anti-pulling force after tensioning, the movable anchor claw 4 and the expansion rod 3 are selected to have enough strength and certain corrosion resistance.

In this embodiment, a through hole 10 is formed at the rear end of the main rotating rod 2, and a rotating handle rod 9 penetrates through the through hole 10.

Specifically, the rotary main rod 2 can be rotated forward for anchoring or rotated backward for recovering the anchor rod by using the screw handle rod 9.

The utility model discloses can realize anchor and recycle under the condition of not slip casting, solve the problem that most umbelliform stock recovery difficulty and construction process are complicated effectively.

The working principle of the embodiment is as follows:

before the present embodiment is used for anchoring, a hole is drilled at a position where the soil body needs to be anchored, then as shown in fig. 1 and fig. 2, the folded umbrella-shaped anchor rod is driven into the drilled hole, the driving anchor head 1 is fixed at the hole bottom position, and then the screw handle rod 9 is inserted into the rear end through hole 10 of the rotating main rod 2.

Then, the rotating main rod 2 is rotated forward by screwing the handle rod 9, in the process of forward rotation of the rotating main rod 2, due to the fact that the driving anchor head 1 is fixed in a soil body, the driving anchor head 1, the movable anchor claw 4, the expansion rod 3 and the ring nut 7 cannot rotate, the ring nut 7 can move towards the direction of driving the driving anchor head 1 along a thread section 8 formed in the rotating main rod 2, the expansion rod 3 extrudes downwards and drives the movable anchor claw 4 to be opened outwards and penetrate into the soil body around the anchor rod, and therefore anchoring is completed.

When the movable anchor claw is required to be recovered, the rotary main rod 2 only needs to rotate reversely, the ring nut 7 can move along the thread section 8 arranged on the rotary main rod 2 in the direction far away from the driving anchor head 1, the expansion rod 3 can drive the movable anchor claw 4 to be folded inwards, and the movable anchor claw 4 is pulled out after being separated from the soil body, so that the recovery can be completed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The screw-rotating umbrella type recoverable anchor rod is characterized by comprising a driving anchor head (1) and a rotating main rod (2), wherein a groove (5) is formed in the driving anchor head (1), and a tenon (11) which is embedded with the groove (5) is arranged at the front end of the rotating main rod (2);

a thread section (8) is arranged in the middle of the rotating main rod (2), a ring nut (7) is assembled on the thread section (8) in a threaded manner, the driving anchor head (1) is fixedly connected with a plurality of movable anchor claws (4) for anchoring, an expansion rod (3) is arranged on the ring nut (7) corresponding to each movable anchor claw (4), and the other end of each expansion rod (3) is fixedly connected to the middle of the corresponding movable anchor claw (4);

the rear end of the rotating main rod (2) is provided with a through hole (10), and a rotating handle rod (9) penetrates through the through hole (10).

2. The screw-on umbrella type retrievable anchor rod according to claim 1, characterized in that the expansion rod (3) is connected at one end to a ring nut (7) by a fixed rotation shaft (6) and at the other end to the middle of the corresponding movable anchor claw (4) by a fixed rotation shaft (6).

3. The twist-on umbrella retrievable anchor rod according to claim 1, characterized in that the movable anchor catch (4) is connected to the driving anchor head (1) by a fixed rotation shaft (6).

4. The screw-on umbrella retrievable anchor rod according to claim 1, characterized in that the tenon (11) of the rotating main rod (2) is in smooth contact with the inside of the recess (5) of the driving anchor head (1).

5. A screw-on umbrella retrievable anchor rod according to claim 1, characterised in that the ring nut (7) cooperates with a threaded section (8) made on the rotating main rod (2).

6. The screw-on umbrella type retrievable anchor rod according to claim 1, characterized in that the length of the expansion rod (3) is greater than the length of the threaded section (8) provided on the rotating main rod (2).

7. The screw-on umbrella retrievable anchor rod according to claim 1, characterized in that the shaft of the rotating main rod (2) is integrally formed with the threaded section (8).

8. A twist-umbrella retrievable anchor rod according to claim 1, characterised in that the rotating main rod (2) has a rod diameter greater than the diameter of the ring nut (7).