Anchor rod backing plate fastening device
Technical Field
The utility model belongs to the technical field of anchor device, especially, relate to an anchor rod backing plate fastener.
Background
The construction of the anchor rod and the anchor backing plate is used as a conventional operation of tunnel surrounding rock support and is applied to the primary support operation process of tunnel excavation. Is an important means for reinforcing the surrounding rock. The anchor rod operation is usually designed with stress requirements, an anchor backing plate is closely attached to the surrounding rock, and prestress is properly added, so that a better surrounding rock stabilizing effect after excavation is achieved.
The patent application with the publication number of CN217001925U discloses an anchor rod backing plate fastening device, which comprises an anchor rod, an anchor backing plate, an outer thread sleeve, a top thread, a tail thread and a fastening tail thread, wherein the anchor rod can be inserted into an anchor hole in a wall body of a surrounding rock, a first through hole is formed in the anchor backing plate, and the anchor rod can penetrate through the first through hole; the outer wire sleeve is sleeved on the anchor rod in a sliding mode, the outer wall of the outer wire sleeve is divided into a wire sleeving section and a concave section, the wire sleeving section can penetrate into the first through hole, and the end portion of one side of the concave section is provided with a tail side blocking sleeve protruding outwards; the top screw can be in threaded connection with the threading section; the tail screw is a nut without internal threads, can be sleeved on the concave section in a sliding manner, the inner diameter of the tail screw is smaller than the outer diameter of the tail side blocking sleeve, and an annular sleeve is arranged on the tail screw; the fastening tail wire is arranged on the annular sleeve and can be wound on the anchor rod. This anchor rod backing plate fastener need not to stock car silk processing, can realize simultaneously that the net piece is connected with the anchor rod, can realize the prestressing force construction operation of anchor rod.
The anchor rod backing plate fastening device disclosed in the application adopts a plurality of customized parts including a tail screw, an annular sleeve, a deflector rod and a fastening tail screw in order to fix the outer screw sleeve on the anchor rod, so that the use amount of the parts is increased, and the equipment cost and the operation complexity are increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anchor rod backing plate fastener has solved above-mentioned anchor rod backing plate fastener, has adopted tail spiral shell, annular cover, driving lever, the part of fastening a plurality of customizations of tail silk in order to fix the outer silk sleeve on the stock, and the use amount of the part that not only increases has also increased the technical problem of the complexity of equipment cost and operation simultaneously.
In order to achieve the purpose, the utility model is realized by the following technical proposal:
an anchor rod base plate fastening device comprises an outer wire sleeve, wherein a plurality of limiting bulges are circumferentially arrayed at one end of the outer wire sleeve, and an anchor base plate and a gasket are sleeved at the other end of the outer wire sleeve;
an extrusion ring corresponding to the limiting bulges is sleeved on the outer screw sleeve, and positioning tail screws corresponding to the limiting bulges are matched with the outer screw sleeve in a threaded manner;
the outer screw sleeve is sleeved with a positioning top screw corresponding to the anchor backing plate, and the anchor rod is in sliding fit with the outer screw sleeve.
Optionally, the limiting protrusion is of an arc-shaped plate-shaped structure, and the wall thickness of the arc-shaped plate-shaped structure gradually increases from one end close to the outer wire sleeve to one end far away from the outer wire sleeve.
Optionally, the inner wall of the extrusion ring is of a circular ring structure, the outer side of the extrusion ring is of a hexagonal structure, and an annular fillet is arranged on the inner wall of one end, close to the limiting protrusion, of the extrusion ring.
Optionally, the outer profiles of the vertical cross sections of the extrusion ring and the positioning tail screw are completely overlapped.
Optionally, the outer side is equipped with the external screw thread on the outer silk sleeve, and location tail spiral shell, location top spiral shell inboard all are equipped with the internal thread, and extrusion ring inner wall is smooth curved surface.
Optionally, the inner wall of the outer wire sleeve is attached to the outer side of the anchor rod.
The embodiment of the utility model has the following beneficial effect:
the utility model discloses an embodiment extrudes a plurality of spacing protruding deformation centre gripping stock through rotational positioning tail spiral shell, extrusion ring, is convenient for improve positioning efficiency, and simple structure, and is with low costs, convenient operation.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a schematic view of a main structure of an embodiment of the present invention;
fig. 3 is a cross-sectional view of an embodiment of the present invention.
Wherein the figures include the following reference numerals:
the anchor rod comprises an outer wire sleeve 1, a limiting bulge 2, an anchor backing plate 3, a gasket 4, an extrusion ring 5, a positioning tail screw 6, a positioning top screw 7, an anchor rod 8 and an annular round angle 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.
Referring to fig. 1-3, in the present embodiment, there is provided a rock bolt plate fastening device, including: the bolt comprises an outer wire sleeve 1, wherein a plurality of limiting bulges 2 are circumferentially arrayed at one end of the outer wire sleeve 1, an anchor backing plate 3 and a gasket 4 are sleeved at the other end of the outer wire sleeve 1, and the outer wire sleeve 1 and the limiting bulges 2 are of an integrated structure;
the outer screw sleeve 1 is sleeved with an extrusion ring 5 corresponding to the limiting bulges 2 and a positioning tail screw 6 corresponding to the limiting bulges 2 in a threaded fit manner;
the outer screw sleeve 1 is sleeved with a positioning top screw 7 corresponding to the anchor backing plate 3, and the outer screw sleeve 1 is in sliding fit with an anchor rod 8.
The gasket 4 is positioned between the anchor backing plate 3 and the primary support or the wall body, the size of the outer dimension of the gasket 4 is equal to that of the anchor backing plate 1, so that the gasket 7 can be closely attached to the wall body or the primary support, after the mortar strength of the anchor rod 8 meets the prestress application requirement, the plurality of limiting bulges 2 are extruded by the rotary positioning tail screws 6 and the extrusion ring 5 to deform and clamp the anchor rod 8, the outer thread sleeve 1 is conveniently and rapidly positioned on the anchor rod 8, and then the anchor backing plate 3 and the gasket 4 are fastened by rotating the positioning top screw 7;
through the 2 deformation centre gripping stock 8 of a plurality of spacing archs of rotational positioning tail spiral shell 6, extrusion ring 5 extrusion, be convenient for improve positioning efficiency, and simple structure, it is with low costs, convenient operation.
The spacing arch 2 of this embodiment is arc platelike structure, and the wall thickness of arc platelike structure increases gradually from being close to 1 one end of outer silk sleeve to keeping away from 1 one end of outer silk sleeve, and the rotational positioning tail spiral shell 6 of being convenient for, the 5 extrusion of extrusion ring 2 deformation centre gripping stock 8 of a plurality of spacing archs.
The 5 inner walls of extrusion ring of this embodiment are the annular structure, the outside is hexagonal shape structure, extrusion ring 5 is close to 2 one end inner walls of spacing arch and is equipped with annular fillet 9, extrusion ring 5, the hexagonal structure of 6 vertical cross-section outlines of location tail spiral shell coincide completely, the outside is equipped with the external screw thread on the outer screw sleeve 1, location tail spiral shell 6, 7 inboards of location top spiral shell all are equipped with the internal thread, 5 inner walls of extrusion ring are smooth curved surface, 1 inner wall of outer screw sleeve and 8 outside laminating, be convenient for rotate extrusion ring 5 simultaneously through hexagonal spanner, location tail spiral shell 6, and then through 5 extrusion rings of a plurality of spacing arch 2 location stock 8.
It should be noted that all the electric devices referred to in this application may be powered by a storage battery or an external power source.
The above embodiments may be combined with each other.
The utility model discloses not confine above-mentioned embodiment to, anybody should learn the structural change who makes under the enlightenment of the utility model, all fall into within the protection scope of the utility model.
The technology, shape and construction parts which are not described in detail in the present invention are all known technology.