CN213627622U

CN213627622U - Assembled protecting against shock stock

Info

Publication number: CN213627622U
Application number: CN202022516583.7U
Authority: CN
Inventors: 张通; 李文强; 马艳慧
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-07-06
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses an assembled protecting against shock stock, including body of rod a, body of rod b, screw hole, ring channel, solid, lateral wall a, lateral wall b, screw rod, tray shell, rubber granule, draw-in groove, dop, nut, body of rod a tip is inwards opened has the screw hole with body of rod a coaxial line, body of rod b tip is inwards opened has the ring channel with body of rod b coaxial line and have the internal thread; the solid body surrounded by the annular groove is of a threaded rod structure, the solid body is inserted into the threaded hole, the side wall a is inserted into the annular groove, the inner wall of the side wall a is in threaded connection with the solid body, and the outer wall of the side wall a is in threaded connection with the side wall b; tray shell is the metal material, and through setting up rubber granule and three-layer draw-in groove have played fine buffering and have let the pressure effect, have greatly reduced the stock tray in the use probability of damaging, have reduced the potential safety hazard.

Description

Assembled protecting against shock stock

Technical Field

The utility model relates to a be applied to the stock device in geotechnical engineering tunnel support field, concretely relates to can assemble fast and can guarantee the assembled protecting against shock stock of use intensity.

Background

In recent years, with the rapid development of road construction, tunnels are often built in mountains in some mountainous areas, so that roads are continuously opened, the tunnel construction process is complex, the tunnel needs to be subjected to primary support on the inner wall of the tunnel in time in the excavation process, and the primary support mode usually adopts a support mode of bolting and concrete spraying.

The stock often has certain length, however some current anchor rods of assembling often break off in the weak concatenation department of atress at the in-process of driving into the rock stratum construction, and the atress performance of concatenation junction is relatively poor to when being out of shape in the face of impact load or great rock mass, current anchor rod tray is difficult to bear the impact stress that the tip produced anchor rod tray, causes destruction to the tray very easily, influences the effect of strutting of stock, brings the potential safety hazard for the engineering.

Disclosure of Invention

In view of this, the embodiment of the utility model provides an assembled protecting against shock stock for solve the current stock concatenation quality of mentioning among the background art poor and the tray destroys the problem easily.

In order to achieve the above object, the present invention provides the following technical solutions: an assembled impact-resistant anchor rod comprises a rod body a, a rod body b, a threaded hole, an annular groove, a solid body, a side wall a, a side wall b, a screw rod, a tray shell, rubber particles, a clamping groove, a clamping head and a nut, wherein the end part of the rod body a is inwards provided with the threaded hole coaxial with the rod body a, and the end part of the rod body b is inwards provided with the annular groove coaxial with the rod body b and provided with an internal thread; the solid body surrounded by the annular groove is of a threaded rod structure, the solid body is inserted into the threaded hole, the side wall a is inserted into the annular groove, the inner wall of the side wall a is in threaded connection with the solid body, and the outer wall of the side wall a is in threaded connection with the side wall b; the tray shell is made of metal, a clamping head, a clamping groove and rubber particles are arranged in the tray shell, and the clamping head is arranged in the first layer of clamping groove after installation is completed.

Furthermore, the device can connect the side wall a with the side wall b through the screw rod, so that the firmness of the device is improved.

Further, the draw-in groove is the same with the size homogeneous phase of dop, when receiving impact load or bearing stress when too big, the dop can slide into next layer draw-in groove, just the rubber granule receives the extrusion, produces certain displacement amount and cushioning effect.

The utility model discloses possess following beneficial effect: the utility model discloses with the help of body of rod an, body of rod b, when concatenation installation body of rod an and body of rod b, it is rotatory body of rod b makes the screw hole align the solid, the installation is accomplished the back, screw hole inner wall and solid threaded connection, lateral wall an with lateral wall b threaded connection to reach dual threaded connection's mode, screw rod screw in lateral wall an and lateral wall b, thereby can guarantee the joint strength of concatenation department between body of rod an and the body of rod b, reduced the cracked possibility that appears, and through setting up rubber granule and three-layer draw-in groove, played fine buffering and let the pressure effect, greatly reduced stock tray in the use probability of damaging, reduced the potential safety hazard. And the utility model discloses simple structure, simple to operate, the practicality is stronger.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the structure viewed from the right side of the present invention.

The novel steel bar comprises a bar body 1, a bar body 2, threaded holes 3, annular grooves 4, solid bodies 5,

side walls

6, 7, side walls b, screws 8, a base plate 9, a tray shell 10, rubber particles 11, clamping grooves 12, clamping heads 13 and nuts 14.

Detailed Description

The present invention will be further explained with reference to the attached drawings in the embodiments of the present invention.

Referring to fig. 1 and 2, an assembled impact-resistant anchor rod comprises a rod body a1, a rod body b2, a threaded hole 3, an annular groove 4, a solid body 5, a side wall a6, a side wall b7, a screw 8, a tray shell 10, rubber particles 11, a clamping groove 12, a clamping head 13 and a nut 14; conveying the batched rod bodies a1 and b2 to a construction site, and assembling the batched rod bodies on the construction site, wherein the concrete assembling process is that the side wall of a threaded hole 3 in the rod body a1 is aligned with the solid body 5, at the moment, the side wall a6 is also aligned with the annular groove 4 synchronously, the rod body b2 is rotated, the inner wall of the threaded hole 3 is in threaded connection with the solid body 5, the side wall a6 is in threaded connection with the side wall b7, threaded holes are drilled in the side wall a6 and the side wall b7, and a screw rod 8 is driven into the threaded holes, so that the strength of the connection part is further increased; then, the tray shell 10 is installed on the rod body b2, the tray shell 10 is made of metal, a clamping head 13, a clamping groove 12 and rubber particles 11 are arranged in the tray shell, and the clamping head 13 is located in the first layer of clamping groove 12 after installation is completed; the clamping grooves 12 and the clamping heads 13 are the same in size, when the tray is subjected to impact load or too large in bearing stress, the clamping heads 13 can slide into the clamping grooves 12 in the next layer to generate a certain displacement, the stress is released to a certain degree, the rubber particles 11 between the tray shell 10 and the clamping grooves 12 are extruded, the impact load is well buffered and relieved, the stress bearing degree of the anchor rod is enhanced, and the anchor rod tray is prevented from being damaged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An assembled impact-resistant anchor rod is characterized by comprising a rod body a (1), a rod body b (2), a threaded hole (3), an annular groove (4), a solid body (5), a side wall a (6), a side wall b (7), a screw rod (8), a tray shell (10), rubber particles (11), a clamping groove (12), a clamping head (13) and a nut (14); the end part of the rod body a (1) is inwards provided with a threaded hole (3) coaxial with the rod body a (1), and the end part of the rod body b (2) is inwards provided with an annular groove (4) coaxial with the rod body b (2) and provided with an internal thread; the solid body (5) surrounded by the annular groove (4) is of a threaded rod structure, the solid body (5) is inserted into the threaded hole (3), the side wall a (6) is inserted into the annular groove (4), and the inner wall of the side wall a (6) is in threaded connection with the solid body (5); tray shell (10) are the metal material, and inside is provided with dop (13), draw-in groove (12) and rubber granule (11), and after the installation completion dop (13) should be in first layer draw-in groove (12).

2. An assembled impact bolt according to claim 1 wherein the bolt is drilled into side wall a (6) and side wall b (7) and threaded into the threaded rod (8) to further increase the strength of the joint.

3. An assembled impact-resistant anchor rod as claimed in claim 1, wherein the size of said clamping groove (12) is the same as that of said clamping head (13), when it is under impact load or over-stressed, said clamping head (13) can slide into the next layer of clamping groove (12), and said rubber particles (11) are squeezed to produce a certain displacement and cushioning effect.