阅读说明：本技术 一种溢胶破壁型建筑锚栓 (Excessive glue broken wall type building crab-bolt ) 是由 刘再挺 于 2021-06-09 设计创作，主要内容包括：本发明公开了一种溢胶破壁型建筑锚栓,属于建筑锚栓技术领域,通过将多个溢胶囊包预先填充于外螺杆底端壁上,在内螺杆螺旋下沉过程中,依靠磁环对自热件上的磁吸作用,使得多个自热件沿着内封闭腔向下运动,自热件溢胶囊包进行顶撑胀裂,使得溢胶囊包内的锚固胶溢出并分布于外螺杆的内外部,实现外螺杆与混凝土孔壁之间的胶固连接,无需承受预先放置锚固胶所带来的挤压阻力,同时自热件内的自热填料自主生热后,一方面对溢胶囊包以及锚固胶起到热熔作用,提高粘结效果,另一方面在自热件生热后使得多个膨胀锚固钉贯穿自热件并插设于混凝土孔壁上,配合均匀分布的锚固胶,有效提高了外螺杆与混凝土孔壁之间的横向剪切而增大其抗拔力。(The invention discloses a glue overflow wall-breaking building anchor bolt, belonging to the technical field of building anchor bolts, wherein a plurality of glue overflow capsule bags are pre-filled on the bottom end wall of an outer screw rod, a plurality of self-heating pieces move downwards along an inner closed cavity by means of the magnetic attraction of a magnetic ring on the self-heating pieces in the spiral sinking process of the inner screw rod, the self-heating piece overflow capsule bags are subjected to top support and expansion crack, so that anchoring glue in the glue overflow capsule bags overflows and is distributed at the inner part and the outer part of the outer screw rod, the glue fixation connection between the outer screw rod and the wall of a concrete hole is realized, the extrusion resistance brought by the pre-placed anchoring glue is not required to be born, after the self-heating filler in the self-heating pieces generates heat, the glue overflow capsule bags and the anchoring glue are subjected to hot melting on one hand, the bonding effect is improved, on the other hand, after the self-heating pieces generate heat, a plurality of expansion anchoring nails penetrate through the self-heating pieces and are inserted on the wall of the concrete hole, and are matched with the uniformly distributed anchoring glue, the transverse shearing between the outer screw rod and the wall of the concrete hole is effectively improved, and the pulling resistance is increased.)

1. The utility model provides a broken wall type building crab-bolt of excessive glue, includes threaded connection's outer screw rod (1) and interior screw rod (2), interior screw rod (2) are located inside outer screw rod (1), its characterized in that: the glue overflow device is characterized in that a plurality of glue overflow cavities (101) are formed in the side wall of the bottom end of the outer screw rod (1), inner closed cavities (1011) are formed in the top ends of the glue overflow cavities (101), self-heating pieces (5) are embedded in the inner closed cavities (1011), glue overflow bag bags (3) located at the bottom ends of the self-heating pieces (5) are embedded in the glue overflow cavities (101), air holes are formed in the bottom ends of the self-heating pieces (5), diaphragms (6) sleeved on the bottom ends of the self-heating pieces (5) are arranged at the bottom ends of the inner closed cavities (1011), magnetic rings (4) are embedded in the side wall, close to the bottom ends, of the inner screw rod (2), the magnetic rings (4) are arranged with the self-heating pieces (5) in a magnetic mode, self-heating fillers (7) are filled in the self-heating pieces (5), and a plurality of expansion anchoring nails (9) penetrate through the self-heating pieces (5).

2. The excessive glue broken wall type building anchor bolt of claim 1, characterized in that: the bottom ends of the outer screw rod (1) and the inner screw rod (2) are both provided with a cone, and the outer diameter of the inner screw rod (2) is smaller than the inner diameter of the cone at the bottom end of the outer screw rod (1).

3. The excessive glue broken wall type building anchor bolt of claim 1, characterized in that: the capsule bag (3) comprises an outer hot-melt coating layer (301) and an anchoring adhesive (302) filled at the inner end of the outer hot-melt coating layer (301), wherein the outer hot-melt coating layer (301) is made of a hot-melt resin material.

4. The excessive glue broken wall type building anchor bolt of claim 1, characterized in that: the self-heating piece (5) comprises a magnetic self-heating ball (501) and a self-heating rod (502) which are communicated with each other from top to bottom, the magnetic self-heating ball (501) abuts against the bottom end of the inner closed cavity (1011), the magnetic self-heating ball (501) is made of a magnetic material, and the self-heating filler (7) is filled in the magnetic self-heating ball (501) and the self-heating rod (502).

5. The building anchor bolt of claim 4, wherein the glue overflow wall-breaking type comprises: the air holes are formed in the upper end wall of the magnetic self-heating ball (501), the air holes are arranged corresponding to the diaphragm (6), and the self-heating filler (7) is made of reducing iron powder.

6. The building anchor bolt of claim 5, wherein: the self-heating rod (502) is internally inserted with a guide rod (8), a plurality of expansion anchoring nails (9) are movably sleeved on the guide rod (8), and the inner ends of the expansion anchoring nails (9) are connected on the inner wall of the self-heating rod (502).

7. The building anchor bolt of claim 6, wherein: the expansion anchoring nail (9) comprises a thermal expansion pipe connected to the inner wall of the self-heating rod (502), the outer end of the thermal expansion pipe is connected with a conical nail, and the conical nail is movably sleeved on the guide rod (8).

8. The building anchor bolt of claim 7, wherein: a plurality of anchoring holes (5021) corresponding to the positions of the expansion anchoring nails (9) are formed in the side wall of one end, far away from the inner screw rod (2), of the self-heating rod (502), and sealing films are attached to the positions of the anchoring holes (5021).

9. The building anchor bolt of claim 8, wherein: the conical nail is characterized in that metal barbs are distributed on the end wall of the conical nail, the thermal expansion pipe is made of thermal expansion materials, and thermal expansion gas is filled in the thermal expansion pipe.

10. The building anchor bolt of claim 4, wherein the glue overflow wall-breaking type comprises: the magnetic self-heating ball (501) and the self-heating rod (502) are both made of metal heat-conducting materials.

Technical Field

The invention relates to the technical field of building anchor bolts, in particular to a glue overflow wall-breaking type building anchor bolt.

Background

The anchor bolt is a general term of all rear anchoring components and has a wide range. The building anchor bolt is used for fixing a hot galvanizing electric welding net, an alkali-resistant glass fiber net or a heat insulation board, a fireproof isolation belt and the like on a special mechanical connecting and fixing part of a base layer wall.

Bolts can be classified into expansion type anchor bolts, hole-expanding type anchor bolts, bonding type anchor bolts, concrete screws, shooting nails, concrete nails, and the like according to different anchoring mechanisms. The adhesive anchor bolt, also called chemical adhesive bolt, is named chemical bolt or Eurya japonica, is one assembly with screw bolt, inner thread pipe, etc. fixed inside drilled hole of concrete base material and anchored with connecting part via the adhesion and locking between the adhesive and the screw bolt and the wall of the drilled hole.

When the traditional bonding anchor bolt is used, the anchoring adhesive is generally extruded into the wall of a concrete hole, and then the anchor bolt is anchored into the wall of the concrete hole, and because the anchoring adhesive has high-strength viscosity, the anchoring adhesive has certain resistance to the sinking of the anchor bolt, the anchoring adhesive is difficult to be uniformly distributed between a screw rod and the wall of the concrete hole; in addition, the screw rod and the concrete hole wall are positioned by the anchoring adhesive, so that the pulling resistance is difficult to generate by the transverse shearing between the screw rod and the concrete hole wall.

Therefore, the building anchor bolt with the glue overflowing and wall breaking function is provided to effectively solve the problems in the prior art.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a glue-overflowing wall-breaking building anchor bolt, which fills a plurality of glue-overflowing capsules on the bottom end wall of an outer screw rod in advance, enables a plurality of self-heating pieces to move downwards along an inner closed cavity by means of the magnetic attraction of a magnetic ring on the self-heating pieces in the spiral sinking process of the inner screw rod, carries out top support and spalling on the self-heating piece-overflowing capsules, enables anchoring glue in the glue-overflowing capsules to overflow and be distributed on the inner part and the outer part of the outer screw rod, realizes the glue-fixed connection between the outer screw rod and a concrete hole wall, does not need to bear the extrusion resistance brought by the pre-placed anchoring glue, simultaneously, after the self-heating filler in the self-heating piece generates heat, plays a hot melting and self-heating role on one hand, improves the bonding effect, and enables a plurality of expansion anchoring nails to penetrate through the self-heating piece and be inserted on the concrete hole wall after the self-heating piece, by matching with evenly distributed anchoring glue, the transverse shearing between the outer screw rod and the wall of the concrete hole is effectively improved, and the pulling resistance is increased.

2. Technical scheme

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

The overflow glue wall-breaking type building anchor bolt comprises an outer screw rod and an inner screw rod which are in threaded connection, wherein the inner screw rod is located inside the outer screw rod, a plurality of glue overflow cavities are formed in the side wall of the bottom end of the outer screw rod, inner sealing cavities are formed in the top ends of the glue overflow cavities, self-heating pieces are embedded inside the inner sealing cavities, glue overflow bag bags located at the bottom ends of the self-heating pieces are embedded inside the glue overflow cavities, air holes are formed in the bottom ends of the self-heating pieces, diaphragms sleeved on the bottom ends of the self-heating pieces are arranged at the bottom ends of the inner sealing cavities, magnetic rings are embedded on the side wall, close to the bottom ends, of the inner screw rod, and are arranged in a magnetic mode through the magnetic rings and the self-heating pieces, self-heating fillers are filled in the self-heating pieces, and a plurality of expansion anchor nails are arranged in the self-heating pieces in a penetrating mode.

Furthermore, the bottom ends of the outer screw rod and the inner screw rod are respectively provided with a cone body, the outer diameter of the inner screw rod is smaller than the inner diameter of the cone body at the bottom end of the outer screw rod, after the inner screw rod is screwed into the wall of the concrete hole, the inner screw rod is connected with the outer screw rod through internal threads of the outer screw rod, the cone body at the bottom end of the inner screw rod penetrates through the cone body at the bottom end of the outer screw rod and drills into the inner bottom of the concrete hole wall, and therefore the outer screw rod and the inner screw rod are effectively and mechanically connected with the wall of the concrete hole.

Further, overflow capsule package includes outer hot melt peridium layer and fills in the anchor of outer hot melt peridium layer inner, outer hot melt peridium layer adopts hot melt resin material to make, back in interior screw threaded connection is in outer screw, the interior screw sinks the in-process, because magnetic ring and the magnetism of self-heating piece set up, the magnetic ring makes to derive from the vertical whereabouts of hot piece along interior closed cavity when descending, self-heating piece plays the effect of breaking when the downstream to outer hot melt peridium layer, outer hot melt peridium layer is cracked the back, the anchor spills over, the anchor distributes in outer screw and concrete pore wall and the linking department between outer screw and the interior screw, need not to bear the extrusion resistance that the anchor brought in advance.

Further, from the hot ball and from the hot rod including the magnetism of intercommunication from top to bottom, magnetism supports in the bottom portion of interior closed chamber from the hot ball mutually, magnetism is from the hot ball and is made by magnetic material, from the hot ball and from the hot rod in the filling of hot filler, utilize the synchronism of magnetism to inhale the motion, utilize the screw of internal screw rod to sink and drive from the hot piece downstream, to overflowing the interior motion of gluey intracavity from the hot piece on the one hand to play the rupture effect to the capsule bag that overflows, on the other hand from the hot piece after the self-heating utilizes high temperature to make anchor glue fully diffuse after being heated, evenly distributed in the inside and outside of external screw rod.

Further, the bleeder vent is seted up on the upper end wall of magnetism self-heating ball, the bleeder vent corresponds the setting with the diaphragm position, self-heating filler adopts the reductive iron powder, and the bleeder vent on the magnetism self-heating ball breaks away from the diaphragm, and the air is leading-in to self-heating spare inside through the bleeder vent to self-heating filler and oxygen reaction themogenesis, produced heat transfer to excessive capsule package department, the hot melt of outer hot melt envelope layer had both been favorable to, make the anchor glue molecule can fully diffuse under comparatively high temperature environment again, the outer hot melt envelope layer cooperation anchor glue of hot melt can evenly distribute in the hole of the interior outer wall of outer screw, improves the bonding effect.

Furthermore, a guide rod is inserted into the self-heating rod, a plurality of expansion anchoring nails are movably sleeved on the guide rod, and the inner ends of the expansion anchoring nails are connected to the inner wall of the self-heating rod.

Further, inflation anchor nail is including connecting the thermal expansion pipe on the self-heating pole inner wall, the outer end of thermal expansion pipe is connected with the awl nail, the awl nail movable sleeve is located on the guide bar.

Furthermore, set up a plurality of anchor holes that correspond with inflation anchor nail position on the one end lateral wall of keeping away from the inner screw rod from the hot rod, it is a plurality of anchor hole department all pastes and covers the seal membrane, and after self-heating filler self-heating reaction, the thermal expansion pipe is heated and outwards expands and extend to promote the awl nail to anchor hole department motion, the awl nail pierces through the seal membrane and inserts and locate on the concrete pore wall, has effectively improved the transverse shear between outer screw rod and the concrete pore wall and has increased its withdrawal resistance.

Further, it has the metal barb to distribute on the awl nail end wall, thermal expansion pipe adopts thermal expansion nature material to make, thermal expansion pipe intussuseption is filled with thermal expansion gas, and thermal expansion pipe promotes the centrum and outwards extrudes to the anchor hole, and the awl nail relies on and carries out fine grabbing between metal barb and concrete pore wall, the anchor glue, improves horizontal shearing force degree.

Furthermore, the magnetic self-heating ball and the self-heating rod are both made of metal heat-conducting materials, so that the heat conductivity is effectively improved, and the hot melting efficiency of the overflowing capsule bag is improved.

3. Advantageous effects

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

(1) the proposal is that a plurality of capsule bags are filled in the bottom wall of the outer screw rod in advance, and during the spiral sinking process of the inner screw rod, the magnetic ring is used for magnetically attracting the self-heating piece, so that the plurality of self-heating pieces move downwards along the inner closed cavity and are propped and burst by the self-heating piece capsule overflowing package, so that the anchoring adhesive in the overflowing capsule bag overflows and is distributed on the inner part and the outer part of the outer screw rod, the gluing connection between the outer screw rod and the wall of the concrete hole is realized, the extrusion resistance brought by the pre-placement of the anchoring adhesive is not required to be born, simultaneously from the self-heating filler in the hot piece after independently generating heat, on the one hand to overflowing capsule bag and anchor glue play the hot melt effect, improve the bonding effect, on the other hand makes a plurality of inflation anchor nails run through from the hot piece and insert and locate on the concrete pore wall after the self-heating piece generates heat, cooperates evenly distributed's anchor glue, has effectively improved the horizontal shearing between outer screw rod and the concrete pore wall and has increased its withdrawal resistance.

(2) The outer screw rod and the inner screw rod are both provided with a cone, the outer diameter of the inner screw rod is smaller than the inner diameter of the cone at the bottom end of the outer screw rod, when the inner screw rod is screwed into the wall of the concrete hole, the inner screw rod is connected with the outer screw rod through internal threads, the cone at the bottom end of the inner screw rod penetrates through the cone at the bottom end of the outer screw rod and drills into the inner bottom of the concrete hole wall, and therefore the upper and lower dual mechanical connection of the outer screw rod and the inner screw rod with the wall of the concrete hole is effectively achieved.

(3) The capsule bag that overflows includes outer hot melt envelope layer and fills in the anchor of outer hot melt envelope layer inner, outer hot melt envelope layer adopts hot melt resin material to make, plays the effect of breaking to outer hot melt envelope layer when the downstream from the heat piece, and outer hot melt envelope layer is by the spalling back, and the anchor overflows, and anchor after the hot melt and outer hot melt envelope layer distribute in outer screw and concrete pore wall and the linking department between outer screw and the inner screw.

(4) From the hot piece including the magnetism of intercommunication from hot ball and from the hot rod from top to bottom, magnetism supports in the bottom portion of interior closed chamber from hot ball mutually, magnetism is made from hot ball adoption magnetic material, from hot filler is filled in magnetism from hot ball and from the hot rod, utilizes the synchronism of magnetism suction motion, utilizes the screw thread of interior screw rod to sink and drive from the hot piece downstream, plays the effect of breaking to the bag package of overflowing capsule on the one hand to the self-heating piece of the intracavity motion of overflowing, and on the other hand from the hot piece after the self-heating utilizes high temperature to make anchor glue fully diffuse after being heated, evenly distributed in the inside and outside of outer screw rod.

(5) The bleeder vent is seted up on the upper end wall of magnetism self-heating ball, the bleeder vent corresponds the setting with the diaphragm position, self-heating filler adopts the reducing iron powder, and the bleeder vent on the magnetism self-heating ball breaks away from the diaphragm, and the air is leading-in to self-heating spare inside through the bleeder vent to self-heating filler and oxygen reaction themogenesis, produced heat transfer to overflowing capsule package department, existing hot melt that does benefit to outer hot melt envelope layer makes the anchor glue molecule can fully diffuse under comparatively high temperature environment again, and the outer hot melt envelope layer cooperation anchor glue of hot melt can evenly distribute in the hole of the interior outer wall of outer screw, improves the bonding effect.

(6) Insert from the inside of hot rod and be equipped with the guide bar, it is a plurality of inflation anchor nail movable sleeve is located on the guide bar, and the inner of inflation anchor nail is connected on the inner wall of self-hot rod, and inflation anchor nail is including connecting the thermal expansion pipe on the self-hot rod inner wall, the outer end of thermal expansion pipe is connected with the awl nail, on the guide bar was located to the awl nail movable sleeve, set up a plurality of anchor holes that correspond with inflation anchor nail position on the one end lateral wall of self-hot rod keeping away from the inner screw rod, it is a plurality of anchor hole department all pastes and covers the seal membrane, and after self-heating filler self-heating reaction, the thermal expansion pipe is heated outside inflation and extends to promote the movement of awl nail to anchor hole department, the awl nail impales the seal membrane and inserts and locates on the concrete pore wall.

(7) The last distribution of taper pin end wall has the metal barb, thermal expansion pipe adopts thermal expansion nature material to make, the thermal expansion intraduct is filled there is thermal expansion gas, and the thermal expansion pipe promotes the centrum and outwards extrudees out to the anchor hole, and the taper pin relies on carrying out fine gripping between metal barb and concrete pore wall, the anchor glue, improves horizontal shearing force degree.

Drawings

FIG. 1 is a schematic view of the present invention prior to installation;

FIG. 2 is a schematic view of the structure of the present invention at the position of the outer screw;

FIG. 3 is a schematic structural view of the present invention at the position of the inner screw;

FIG. 4 is a schematic view of the present invention after installation;

FIG. 5 is a partial internal view of the present invention where the inner screw is engaged with the outer screw;

FIG. 6 is a partial schematic view of the present invention showing the junction of a capsule and a self-heating element;

FIG. 7 is a schematic partially broken away view of the present invention showing the junction of a capsule and a self-heating element;

FIG. 8 is a schematic view of the present invention after the heat member has moved from the bottom of the bag to the bottom of the bag;

fig. 9 is an internal schematic view of the self-heating element of the present invention.

The reference numbers in the figures illustrate:

the self-heating anchor rod comprises an external screw rod 1, a glue overflowing cavity 101, an internal closed cavity 1011, an internal screw rod 2, a capsule overflowing bag 3, an external hot-melting coating layer 301, anchoring glue 302, a magnetic ring 4, a self-heating piece 5, a magnetic self-heating ball 501, a self-heating rod 502, an anchoring hole 5021, a diaphragm 6, self-heating filler 7, a guide rod 8 and an expansion anchoring nail 9.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection 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 and 4, a glue overflow wall-breaking building anchor bolt comprises an outer screw rod 1 and an inner screw rod 2 which are in threaded connection, wherein the inner screw rod 2 is positioned inside the outer screw rod 1, the bottom ends of the outer screw rod 1 and the inner screw rod 2 are both provided with a cone, the outer diameter of the inner screw rod 2 is smaller than the inner diameter of the cone at the bottom end of the outer screw rod 1, after the inner screw rod 2 is screwed into a concrete hole wall, the outer screw rod 1 is in threaded connection with the inner screw rod 2, the cone at the bottom end of the inner screw rod 2 penetrates through the cone at the bottom end of the outer screw rod 1 and drills into the inner bottom of the concrete hole wall, and therefore, the outer screw rod 1 and the inner screw rod 2 are both in mechanical connection with the concrete hole wall.

Referring to fig. 1-5 and fig. 9, a plurality of glue overflow cavities 101 are formed on the sidewall of the bottom end of an outer screw rod 1, the glue overflow cavities 101 are formed below the outer threads of the outer screw rod 1, inner closed cavities 1011 are formed at the top ends of the glue overflow cavities 101, self-heating members 5 are embedded in the inner closed cavities 1011, glue overflow capsules 3 located at the bottom ends of the self-heating members 5 are embedded in the glue overflow cavities 101, vent holes are formed at the bottom ends of the self-heating members 5, diaphragms 6 sleeved on the bottom ends of the self-heating members 5 are arranged at the bottom ends of the inner closed cavities 1011, magnetic rings 4 are embedded on the sidewall of the inner screw rod 2 close to the bottom ends, the magnetic rings 4 and the self-heating members 5 are filled with magnetic attraction, self-heating fillers 7 are filled in the self-heating members 5, a plurality of expansion anchor nails 9 are further arranged in the self-heating members 5, when the outer screw rod 1 is positioned in a pre-opened concrete hole wall, the inner screw rod 2 sinks in the inner screw rod 1 by means of the magnetic attraction effect on the magnetic rings 4 on the self-heating members 5, make a plurality of from heat 5 along interior closed cavity 1011 downstream, break overflow capsule 3 after 5 downstream from heat, make the anchor glue in the overflow capsule 3 spill over and distribute in the inside and outside of outer screw rod 1, realize gluing solid and connect, need not to bear the extrusion resistance that places anchor glue in advance and bring, simultaneously from the self-heating filler 7 in the heat 5 after independently generating heat, on the one hand plays the hot melt effect to overflow capsule 3 and anchor glue, improve the bonding effect, on the other hand makes a plurality of inflation anchor nails 9 run through from heat 5 and insert and locate on the concrete pore wall after the heat is generated from heat 5.

Referring to fig. 5-8, in particular, the capsule 3 includes an outer hot-melt coating layer 301 and an anchor adhesive 302 filled in the inner end of the outer hot-melt coating layer 301, the outer hot-melt coating layer 301 is made of a hot-melt resin material, the self-heating element 5 acts as a rupture function on the outer hot-melt coating layer 301 when moving downward, after the outer hot-melt coating layer 301 is cracked, the anchor adhesive 302 overflows, and the hot-melt outer hot-melt coating layer 301 and the anchor adhesive 302 are uniformly distributed at the joints between the outer screw rod 1 and the concrete hole wall and between the outer screw rod 1 and the inner screw rod 2.

Referring to fig. 5-9, the self-heating member 5 includes a magnetic self-heating ball 501 and a self-heating rod 502 which are vertically communicated with each other, the magnetic self-heating ball 501 abuts against the bottom end of the inner closed cavity 1011, the magnetic self-heating ball 501 is made of magnetic material, the self-heating filler 7 is filled in the magnetic self-heating ball 501 and the self-heating rod 502, the self-heating member 5 is driven to move downward by the sinking of the screw thread of the inner screw rod 2 due to the synchronism of magnetic attraction movement, the self-heating member 5 moving into the glue overflow cavity 101 has a rupture effect on the glue overflow bag 3 on one side, and the self-heating member 5 after self-heating makes the anchoring glue 302 fully diffuse after being heated by high temperature and is uniformly distributed inside and outside the outer screw rod 1 on the other side.

The air holes are formed in the upper end wall of the magnetic self-heating ball 501 and are arranged corresponding to the membrane 6, the membrane 6 is used for sealing the air holes, the self-heating filler 7 is made of reducing iron powder, the air holes in the magnetic self-heating ball 501 are separated from the membrane 6, air is guided into the self-heating piece 5 through the air holes, the self-heating filler 7 reacts with oxygen to generate heat, the generated heat is transferred to the overflow capsule 3, the hot melting of the outer hot melting capsule layer 301 is facilitated, molecules of the anchoring adhesive 302 can be fully diffused in a high-temperature environment, the hot melting outer hot melting capsule layer 301 can be uniformly distributed in holes in the inner wall and the outer wall of the outer screw rod 1 in cooperation with the anchoring adhesive 302, the bonding effect is improved, the magnetic self-heating ball 501 and the self-heating rod 502 are made of metal heat-conducting materials, the heat conductivity is effectively improved, and the hot melting efficiency of the overflow capsule 3 is improved.

Referring to fig. 9, it should be added that a guide rod 8 is inserted into the interior of the hot rod 502, a plurality of expansion anchor nails 9 are movably sleeved on the guide rod 8, the inner end of the expansion anchor nail 9 is connected to the inner wall of the self-heating rod 502, the expansion anchor nail 9 comprises a thermal expansion pipe connected to the inner wall of the self-heating rod 502, the outer end of the thermal expansion pipe is connected with a conical nail, the conical nail is movably sleeved on the guide rod 8, a plurality of anchor holes 5021 corresponding to the expansion anchor nail 9 are arranged on the side wall of one end of the self-heating rod 502 far away from the inner screw rod 2, sealing films are attached to the plurality of anchor holes 5021, after the self-heating filler 7 is subjected to self-heating reaction, the thermal expansion pipe is heated to expand outwards and extend, thereby promote the awl nail to anchor hole 5021 department motion, the awl nail pierces through the seal membrane and inserts and locate on the concrete pore wall, has effectively improved the transverse shear between outer screw 1 and the concrete pore wall and has increased its withdrawal resistance.

The metal barbs are distributed on the end walls of the conical nails, the thermal expansion pipes are made of thermal expansion materials, thermal expansion gas is filled in the thermal expansion pipes, the thermal expansion pipes promote the centrum to protrude out of the anchoring holes 5021, the conical nails are well grabbed by the metal barbs and the concrete hole walls and the anchoring glue, and transverse shearing force is improved.

Compared with the building anchor bolt in the prior art, the device fills a plurality of capsule overflowing bags 3 in the end wall, close to the bottom end, of the outer screw rod 1 in advance, the outer screw rod 1 is drilled into a drilled concrete hole wall by using an external tool, an inner screw rod 2 is installed in an internal thread of the outer screw rod 1, the bottom end of the inner screw rod 2 penetrates through the bottom end of the outer screw rod 1 and is inserted into the concrete hole wall, and double anchoring is carried out up and down;

in the process of spirally sinking the inner screw rod 2, the magnetic ring 4 magnetically attracts the self-heating pieces 5, so that the self-heating pieces 5 move downwards along the inner closed cavity 1011, the self-heating pieces 5 support and burst the overflowing capsule 3 after moving downwards, so that the anchoring adhesive in the excessive capsule 3 overflows and is distributed at the inner part and the outer part of the outer screw rod 1, the outer screw rod 1 is connected with the concrete hole wall and the outer screw rod 1 is connected with the inner screw rod 2 in a gluing way, the extrusion resistance brought by the pre-placement of the anchoring adhesive is not required to be born, meanwhile, after self-heating filler 7 in the self-heating piece 5 generates heat autonomously, on one hand, the self-heating filler plays a role in hot melting for the overflowing capsule bag 3 and the anchoring adhesive, so that the bonding effect is improved, on the other hand, after the self-heating piece 5 generates heat, a plurality of expansion anchoring nails 9 penetrate through the self-heating piece 5 and are inserted into the wall of the concrete hole, and are matched with the uniformly distributed anchoring adhesive, so that the transverse shearing between the outer screw rod 1 and the wall of the concrete hole is effectively improved, and the pulling resistance of the outer screw rod is increased.

The components used in the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.