CN109630172B

CN109630172B - Head extensible building stock

Info

Publication number: CN109630172B
Application number: CN201811262340.6A
Authority: CN
Inventors: 何际多; 黄建国; 其他发明人请求不公开姓名
Original assignee: Shandong Laigang Yongfeng Steel and Iron Co Ltd
Current assignee: Shandong Laigang Yongfeng Steel and Iron Co Ltd
Priority date: 2018-10-27
Filing date: 2018-10-27
Publication date: 2020-08-07
Anticipated expiration: 2038-10-27
Also published as: CN109630172A

Abstract

The invention discloses a building anchor rod with an expandable head, which belongs to the technical field of buildings and comprises an anchor rod body, a cushion plate, a nut and a grout stop plug, wherein a grouting channel is drilled in the anchor rod body, an anchor head is arranged at the lower side of the anchor rod body, a displacement groove is drilled at the upper end of the anchor head, the lower end of the anchor rod body is fixedly connected with the displacement head, the displacement head is positioned in the displacement groove, four guide slide bars distributed in an annular array manner are fixedly connected to the bottom wall of the displacement groove, four slide rings matched with the guide slide bars are fixedly connected to the side wall of the displacement head, the guide slide bars are in sliding connection with the slide rings, an anti-falling baffle is fixedly connected to the upper end of each guide slide bar, four uniformly distributed accommodating holes are drilled on the side wall of the anchor head, elastic hinges are connected to the bottom wall of the accommodating holes, the anchor, the requirement of anchoring force is met without depending on quantity, and cost is reduced.

Description

Head extensible building stock

Technical Field

The invention relates to the technical field of buildings, in particular to a building anchor rod with an expandable head.

Background

The anchor rod is the most basic component of roadway support in the contemporary coal mine, it consolidates the surrounding rocks of the roadway together, make the surrounding rocks support oneself, the anchor rod is not merely used in the mine now, is used in the engineering technology, carry on the body reinforcement to the side slope, tunnel, dam body, the anchor rod is regarded as the tension member deep into the stratum, its one end is connected with engineering structure, another end is deep into the stratum, the whole anchor rod is divided into free section and anchoring section, the free section means transmits the pulling force of the head of the anchor rod to the area of the anchoring body, its function is to exert the prestress to the anchor rod.

Most fairly simplies of current stock structure, and anchoring force is very limited, and is bigger and bigger along with building engineering's scale, and the quality requirement is also higher and higher, and traditional stock gradually can't satisfy the requirement to anchoring force, in order to remedy whole anchoring force not enough, needs increase the quantity of stock, has increased engineering cost.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a building anchor rod with an expandable head, which can realize that the anchor head part can expand to improve the integral anchoring force of the anchor rod, is simple to operate, does not need to depend on the number to meet the requirement of the anchoring force and reduces the cost.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A building anchor rod with an expandable head comprises an anchor rod body, a base plate, a nut and a grout stop plug, wherein a grouting channel is formed in the anchor rod body, an anchor head is arranged on the lower side of the anchor rod body, a displacement groove is formed in the upper end of the anchor head, a displacement head is fixedly connected to the lower end of the anchor rod body and is positioned in the displacement groove, four guide slide bars distributed in an annular array are fixedly connected to the bottom wall of the displacement groove, four sliding rings matched with the guide slide bars are fixedly connected to the side wall of the displacement head, the guide slide bars are slidably connected with the sliding rings, a falling-preventing baffle is fixedly connected to the upper end of each guide slide bar, four accommodating holes distributed uniformly are formed in the side wall of the anchor head in a chiseling mode, an elastic hinge is connected to the bottom wall of the accommodating holes, an expansion wing plate matched with the accommodating holes is hinged to, the fixed block upper end is excavated and is received the groove, it has the expansion-preventing cardboard to receive inslot sliding connection, prevent expanding the cardboard and receive fixedly connected with compression spring between the groove diapire, the lower clamp plate that four annular array of displacement head lateral wall still fixedly connected with distribute, and the clamp plate is located adjacent preventing expanding the cardboard directly over down, can realize that the anchor head part can expand the holistic anchor power of improvement stock, and easy operation need not to rely on quantity to reach the requirement of anchor power, reduce cost.

Further, a plurality of evenly distributed's tensile barb of fixedly connected with on the stock body of rod, it has a plurality of hourglass thick liquid holes still to dig on the stock body of rod, and leaks thick liquid hole and tensile barb one-to-one, improves the holistic stretching resistance of the stock body of rod, and the slip casting is even, and anchoring force is comparatively even.

Furthermore, the equal fixedly connected with in extension pterygoid lamina both ends strengthens the piece, and is a pair of strengthen the nail of a plurality of evenly distributed of fixedly connected with between the piece, and strengthen the nail and run through the extension pterygoid lamina and connect a pair of enhancement piece, improve the intensity of extension pterygoid lamina and be difficult for breaking from the middle because of the pulling force.

Furthermore, the expansion wing plate is connected with a first polishing layer at one end far away from the elastic hinge, and the expansion-preventing clamping plate is connected with a second polishing layer at one end far away from the compression spring, so that smoothness is increased, and convenience is brought to expansion.

Furthermore, the anchor rod body, the anchor head, the expansion wing plate and the tensile barb surfaces are coated with anti-rust layers, so that the rock-soil body is not easy to rust due to moisture, and the service life is prolonged.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme can realize that the anchor head part can expand the holistic anchor power of improvement stock, and easy operation need not to rely on quantity to reach the requirement of anchor power, reduce cost.

(2) Fixedly connected with a plurality of evenly distributed's tensile barb on the stock body of rod, it has a plurality of hourglass thick liquid holes still to cut on the stock body of rod, and leaks thick liquid hole and tensile barb one-to-one, improves the holistic stretching resistance of the stock body of rod, and the slip casting is even, and the anchoring force is comparatively even.

(3) The equal fixedly connected with in extension pterygoid lamina both ends strengthens the piece, and a plurality of evenly distributed's of fixedly connected with strengthen the nail between a pair of enhancement piece, and strengthen the nail and run through the extension pterygoid lamina and connect a pair of enhancement piece, improve the intensity of extension pterygoid lamina and be difficult for breaking from the middle because of pulling force.

(4) The extension pterygoid lamina is kept away from elasticity hinge one end and is connected with the first layer of polishing, prevents that expansion cardboard keeps away from compression spring one end and is connected with the second layer of polishing, increases the smoothness and is convenient for expand.

(5) The anchor rod body, the anchor head, the extension wing plate and the tensile barb surfaces are coated with anti-rust layers, so that the anchor rod is not easy to rust due to the moisture of rock and soil bodies, and the service life is prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the anchor head portion of the present invention;

FIG. 3 is a schematic structural view of the anchor head portion lower pressing plate pressing the anti-spreading snap-gauge of the present invention;

fig. 4 is a schematic view of the expanded structure of the anchor head portion expansion wing plate of the present invention.

The reference numbers in the figures illustrate:

the anchor rod comprises an anchor rod body 1, an anchor head 2, a backing plate 3, a nut 4, a grout stop plug 5, an expansion wing plate 6, an elastic hinge 7, an accommodating hole 8, a fixing block 9, an expansion-preventing clamping plate 10, a compression spring 11, a lower pressing plate 12, a guide sliding rod 13, a sliding ring 14, a reinforcing sheet 15, a reinforcing nail 16, a tensile barb 17, a grout leakage hole 18 and a displacement head 19.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-4, a construction anchor with an expandable head comprises an anchor rod body 1, a backing plate 3, a nut 4 and a grout stop plug 5, wherein a grouting channel is chiseled in the anchor rod body 1, an anchor head 2 is arranged at the lower side of the anchor rod body 1, a displacement groove is chiseled at the upper end of the anchor head 2, a displacement head 19 is fixedly connected at the lower end of the anchor rod body 1, the displacement head 19 is positioned in the displacement groove, four guide slide bars 13 distributed in an annular array are fixedly connected on the bottom wall of the displacement groove to play a guiding role, four slide rings 14 matched with the guide slide bars 13 are fixedly connected on the side wall of the displacement head 19, the guide slide bars 13 are slidably connected with the slide rings 14, an anti-falling baffle is fixedly connected at the upper end of the guide slide bars 13 to prevent the displacement head 19 from separating from the guide slide bars 13 to separate the anchor rod body 1 from the anchor head 2, four receiving holes 8 are chi, articulated on the elastic hinge 7 have with the receiving hole 8 assorted extension pterygoid lamina 6, rely on the elasticity drive extension pterygoid lamina 6 that elastic hinge 7 provided to expand to anchor head 2 outside, extension pterygoid lamina 6 is close to 19 one end fixedly connected with fixed block 9 of displacement head, the groove has been excavated to fixed block 9 upper end, it has anti-expansion cardboard 10 to accomodate inslot sliding connection, rely on the pulling force that prevents expansion cardboard 10 and the contact of displacement groove lateral wall and provide, avoid extension pterygoid lamina 6 to expand, fixedly connected with compression spring 11 between anti-expansion cardboard 10 and the groove diapire of accomodating, displacement head 19 lateral wall is four annular array distribution's of fixedly connected with holding down plate 12 still, and holding down plate 12 is located adjacent directly over anti-expansion cardboard 10, thereby be used for pressing to prevent expansion cardboard 10 and leave the expansion with the contact of displacement groove lateral wall and.

Referring to fig. 1, a plurality of tensile barbs 17 are uniformly distributed and fixedly connected to the anchor rod body 1, a plurality of grout leaking holes 18 are further drilled in the anchor rod body 1, and the grout leaking holes 18 correspond to the tensile barbs 17 one by one, so that the overall tensile strength of the anchor rod body 1 is improved, the grouting is uniform, and the anchoring force is relatively even.

Please refer to fig. 2, both ends of the extension wing plate 6 are fixedly connected with the reinforcing pieces 15, a plurality of uniformly distributed reinforcing nails 16 are fixedly connected between the pair of reinforcing pieces 15, and the reinforcing nails 16 penetrate through the extension wing plate 6 to connect the pair of reinforcing pieces 15, the strength of the extension wing plate 6 is improved, and the extension wing plate 6 is not easy to break off from the middle due to the pulling force, the end far away from the elastic hinge 7 is connected with a first polishing layer, the end far away from the compression spring 11 of the anti-expansion clamping plate 10 is connected with a second polishing layer, the smoothness is increased, and the extension is convenient, the anchor rod body 1, the anchor head 2, the extension wing plate 6 and the tensile barb 17 are coated with an anti-rust layer on.

When the anchor rod is used, please refer to fig. 2, the anchor head 2 is inserted into the preset anchor hole by aligning the anchor head 2 until the anchor head 2 completely reaches the bottom of the anchor hole, please refer to fig. 3, the anchor rod body 1 is continuously pushed to drive the displacement head 19 to move towards the bottom wall of the displacement groove, the lower press plate 12 presses the anti-expansion clamping plate 10 to move towards the accommodating groove in the fixed block 9, when the anti-expansion clamping plate 10 moves to the accommodating hole 8 without contacting with the side wall of the displacement groove, please refer to fig. 4, the expansion wing plate 6 loses the support of the anti-expansion clamping plate 10 and drives the expansion wing plate 6 to expand towards the outer side of the anchor head 2 under the elastic force of the elastic hinge 7, the displacement head 19 is continuously pushed to the bottom wall of the displacement groove, grouting is carried out in the grouting channel of the anchor rod body 1, the anchor head 2 and the anchor hole are solidified into a whole body, so as to realize anchoring, the operation is simple, the requirement of anchoring force is met without depending on the number, and the cost is reduced.

The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an expandable building stock in head, includes the stock body of rod (1), backing plate (3), nut (4) and ends thick liquid stopper (5), it has the slip casting passageway, its characterized in that to open in the stock body of rod (1): the anchor rod comprises an anchor rod body (1), wherein an anchor head (2) is arranged on the lower side of the anchor rod body (1), a displacement groove is formed in the upper end of the anchor head (2), a displacement head (19) is fixedly connected to the lower end of the anchor rod body (1), the displacement head (19) is located in the displacement groove, four guide slide bars (13) distributed in an annular array are fixedly connected to the bottom wall of the displacement groove, four sliding rings (14) matched with the guide slide bars (13) are fixedly connected to the side wall of the displacement head (19), the guide slide bars (13) are slidably connected with the sliding rings (14), a falling-preventing baffle is fixedly connected to the upper end of the guide slide bars (13), four uniformly-distributed accommodating holes (8) are formed in the side wall of the anchor head (2), an elastic hinge (7) is connected to the bottom wall of the accommodating holes (8), and an expansion wing plate (6) matched, expansion pterygoid lamina (6) are close to displacement head (19) one end fixedly connected with fixed block (9), cut in fixed block (9) upper end and have the groove of accomodating, accomodate in-groove sliding connection and prevent expanding cardboard (10), prevent expanding cardboard (10) and accomodate fixedly connected with compression spring (11) between the groove diapire, displacement head (19) lateral wall is holding down plate (12) that four annular arrays of fixedly connected with distribute still, and holding down plate (12) are located adjacent and prevent expanding cardboard (10) directly over.

2. A head-expandable building bolt according to claim 1, wherein: the anchor rod body of rod (1) is gone up a plurality of evenly distributed's of fixedly connected with tensile barb (17), it has a plurality of hourglass thick liquid holes (18) still to dig on the anchor rod body of rod (1), and leaks thick liquid hole (18) and tensile barb (17) one-to-one.

3. A head-expandable building bolt according to claim 1, wherein: the equal fixedly connected with in extension pterygoid lamina (6) both ends strengthens piece (15), and is a pair of strengthen nail (16) of a plurality of evenly distributed of fixedly connected with between piece (15), and strengthen nail (16) and run through extension pterygoid lamina (6) and be connected a pair of enhancement piece (15).

4. A head-expandable building bolt according to claim 1, wherein: one end, far away from the elastic hinge (7), of the extension wing plate (6) is connected with a first polishing layer, and one end, far away from the compression spring (11), of the expansion preventing clamping plate (10) is connected with a second polishing layer.

5. A head-expandable building bolt according to claim 1, wherein: and the surfaces of the anchor rod body (1), the anchor head (2), the expansion wing plate (6) and the tensile barb (17) are coated with anti-rust layers.