CN113530938A - Large-load fastener - Google Patents
Large-load fastener Download PDFInfo
- Publication number
- CN113530938A CN113530938A CN202110587515.6A CN202110587515A CN113530938A CN 113530938 A CN113530938 A CN 113530938A CN 202110587515 A CN202110587515 A CN 202110587515A CN 113530938 A CN113530938 A CN 113530938A
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- connecting block
- sleeve body
- fixedly connected
- fixed
- screw rod
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- 230000007246 mechanism Effects 0.000 claims abstract description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 13
- 210000000078 claw Anatomy 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000011900 installation process Methods 0.000 description 4
- 210000000080 chela (arthropods) Anatomy 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
- F16B13/068—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like expanded in two or more places
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to the technical field of fasteners, in particular to a large-load fastener which comprises a first sleeve body, a second sleeve body, a screw rod and a fastening mechanism, wherein the screw rod sequentially penetrates through the first sleeve body and the second sleeve body, the fastening mechanism is arranged between the first sleeve body and the second sleeve body, the fastening mechanism comprises a first connecting block, a second connecting block, arch teeth, a movable rod and a fixed cone, the first connecting block and the second connecting block are respectively hinged to the outer surfaces of one ends of the first sleeve body and the second sleeve body close to the periphery in an annular and equidistant mode, and the arch teeth are fixedly connected between two corresponding groups of the first connecting block and the second connecting block. According to the invention, by arranging the fixing cone, the fixing cone can be pushed by the movable rod to be firmly pricked into the wall body in the process of propping open and clamping arch teeth, so that the connection firmness between the first sleeve body and the wall body is improved, the probability of loosening of the device is reduced, and the load strength and the application range of the device are improved.
Description
Technical Field
The invention relates to the technical field of fasteners, in particular to a large-load fastener.
Background
The hollow gecko has the same function as a screw and is used in the occasions where self-tapping screws and expansion screws are not suitable. Is suitable for fixing: lamps, bookshelves, skirting boards, switches, hanging cabinet curtain chutes and the like are suitable for light load installation (the existing hollow gecko bends and deforms the expansion arm through extrusion to form a blocking part, so that the blocking part is easy to deform under a large load). If in steel pipe concrete structure, beam column connected node department etc. because the post cross-section is mostly closed cross-section, can not operate on both sides, only can unilateral connection installation, consequently can't adopt the bolt and nut that commonly uses to connect fastening method and carry out the fastening installation. And a good effect can be obtained by using the hollow gecko.
But because the connection between the sleeve pipe of current cavity gecko and the wall body is comparatively simple, becomes flexible easily when receiving great loading force to reduce its load strength, the fastening effect can't reach design requirement under great load simultaneously, has reduced its application scope.
To this end, a heavy-duty fastener is proposed.
Disclosure of Invention
The invention aims to provide a large-load fastener, which can be used for pushing a fixing cone to be firmly pricked into the wall by using a movable rod in the process of propping open and clamping arch teeth by arranging the fixing cone, so that the connection firmness between a first sleeve body and the wall is improved, the probability of loosening of a device is reduced, the load strength and the application range of the device are improved, and the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a large-load fastener comprises a first sleeve body, a second sleeve body, a screw rod and a fastening mechanism, wherein the screw rod sequentially penetrates through the first sleeve body and the second sleeve body, the fastening mechanism is arranged between the first sleeve body and the second sleeve body, the fastening mechanism comprises a first connecting block, a second connecting block, arch teeth, a movable rod and a fixed cone, the first connecting block and the second connecting block are respectively hinged to the outer surfaces of one end of the first sleeve body and the second sleeve body at annular equal intervals and are close to the peripheral positions, the arch teeth are fixedly connected between two groups of corresponding first connecting blocks and second connecting blocks, a first connecting groove and a second connecting groove are respectively formed in the outer surfaces of one sides of the first connecting block and the second connecting block, the inner surface of the second connecting groove is fixedly connected with a second connecting frame close to the middle part, and the inner surface of the second connecting frame is fixedly connected with a first fixed shaft close to the middle part, one end of the movable rod is movably connected with the first fixed shaft;
the spout has been seted up to one side of first connecting groove internal surface, and the internal surface sliding connection of spout has the slider, and the first connecting frame of one side surface fixed connection of slider, the internal surface fixed connection of first connecting frame has the second fixed axle, the one end and the second fixed axle swing joint of first fixed axle are kept away from to the movable rod, fixed awl fixed connection is in one side surface of first connecting frame, the through-hole has been seted up with the junction of fixed awl to the internal surface of first connecting groove, and fixed awl runs through the surface to first connecting frame through the through-hole.
Through adopting above-mentioned technical scheme, through setting up fixed awl, can utilize the movable rod to promote fixed awl and firmly prick the inside of wall body at the tight in-process that the arch tooth struts to improve the fastness of being connected between first cover body and the wall body, reduce the not hard up probability of device, thereby improve its load strength and application scope.
Preferably, the outer surface of the first connecting frame is fixedly connected with a plurality of groups of arc-shaped fixing pieces at positions close to the periphery of the fixing cone, and the cross sections of the arc-shaped fixing pieces are triangular.
Through adopting above-mentioned technical scheme, in the installation, the movable rod drives first connecting frame and removes along the direction of spout under the promotion of second connecting block and second connecting frame, and run through the inside that the through-hole firmly inserted the wall body, at this moment, a plurality of groups arch tooth is the mechanical claw form and leans on and struts to the wall body direction, simultaneously through setting up the arc stationary blade, make it mutually support with fixed awl, insert the in-process of wall body at fixed awl, also firmly insert the inside of wall body, thereby improve fixed awl and wall connection's fastness, and then strengthen the bearing capacity of device.
Preferably, barbs are fixedly connected to the outer surfaces of the two sides of the fixing cone, the barbs are inclined towards the fixing cone at 15 degrees, the cross sections of the barbs are arc-shaped, the barbs and the arc-shaped fixing pieces are made of metal materials, and anti-corrosion zinc is plated on the surfaces of the barbs and the arc-shaped fixing pieces.
Through adopting above-mentioned technical scheme, in the use, utilize fixed awl and arc stationary blade to mutually support, improve the first cover body and wall connection's fastness, set up the barb through the surface at fixed awl simultaneously and mutually support with both, when strengthening fixed awl and wall connection's fastness, improve fixed awl to the degree of difficulty that breaks away from with the wall body under the exogenic action to the bearing capacity and the stability of device have been strengthened.
Preferably, one end of the outer surface of the first sleeve body, which is far away from the first connecting block, is fixedly connected with a connecting ring, a plurality of groups of inserting columns are annularly distributed on the outer surface of the connecting ring at equal intervals, and the positions, close to one end, of the outer surfaces of the inserting columns are conical.
Through adopting above-mentioned technical scheme, in the installation, the user runs through the inside to prefabricated hole with the one end of the device second cover body earlier, wear out the prefabricated hole until first linkage block and first cover body articulated one end, at the in-process of punching, the aperture in prefabricated hole is the same with the external diameter of first cover body, and then can guarantee the stability of device in the installation, then utilize cavity gecko blind rivet pincers to carry the one end that the screw rod is fixed with the spacing piece and support the wall body, outside pulling, but at this in-process, first cover body is along with the screw rod removes easily, consequently, through setting up supplementary fixed awl and the arc stationary blade of post insertion, improve the stability of the first cover body and wall connection.
Preferably, the movable groove has been seted up with the junction of inserted column to the surface of go-between, and the inserted column keeps away from its inside that is conical one end and runs through to the movable groove, the transversal T type of personally submitting of movable groove, and the internal surface of movable groove closely laminates with the surface of inserted column, the one end that the movable groove was kept away from to the surface of inserted column is provided with the screw thread, the one end fixedly connected with stopper of the first cover body is kept away from to the screw rod, and the other end runs through first cover body and the second cover body in proper order and with both equal threaded connection, the movable rod is located all around of screw rod with the arch tooth.
Through adopting above-mentioned technical scheme, in the installation, the user runs through the inside to the prefabricated hole with the one end of the device second cover body earlier, wear out the prefabricated hole until first connecting block and first cover body articulated one end, then make the post of inserting firmly insert the inside of wall body, thereby prevent that the first cover body from rotating in the installation, reduce the installation degree of difficulty, insert the post along with the go-between inserts the inside in-process of wall body, insert the post around the rotatory wall body that enters of movable groove, then utilize cavity gecko blind rivet pincers to carry the one end that the screw rod is fixed to the spacing piece and support the wall body, outside pulling, after first cover body coupling, the user twists out the screw rod, then fix the object that needs to fix or hang, once more with first cover body and second cover body threaded connection.
Preferably, the cross section of the arch tooth is convex towards two sides at the position close to the middle part, and the thickness of the arch tooth is gradually increased from the middle part to two ends.
Through adopting above-mentioned technical scheme, in the use, if the arch tooth receives the extrusion force of second cover body and is mechanical claw form to wall body direction slope and strut, the thickness of encircleing the tooth through the setting increases progressively from the middle part to both ends in proper order, can improve the holding power of encircleing the tooth to the first connecting block of being connected rather than both ends and second connecting block when guaranteeing to encircle tooth deformability to strengthen device and wall connection's fastness and with and bearing capacity.
Compared with the prior art, the invention has the beneficial effects that:
through setting up fixed awl, can utilize the movable rod to promote fixed awl and firmly prick the inside of wall body at the tight in-process that the arch tooth struts to improve the fastness of being connected between first set of body and the wall body, reduce the not hard up probability of device, thereby improve its load strength and application scope.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a structural view of a first connecting block and a second connecting block of the present invention;
FIG. 3 is an enlarged view of A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of B of FIG. 2 according to the present invention;
FIG. 5 is a view of the combination of the chute and the slide of the present invention;
FIG. 6 is a view of the arch of the present invention in an expanded state;
FIG. 7 is an enlarged view of C of FIG. 6 of the present invention;
fig. 8 is an enlarged view of D of fig. 6 according to the present invention.
In the figure: 1. a first sleeve body; 2. a second sleeve body; 3. a screw; 4. a fastening mechanism; 41. a first connection block; 411. a first connecting groove; 412. a chute; 413. a slider; 414. a first connection frame; 415. a fixed cone; 416. an arc-shaped fixing sheet; 417. a barb; 418. inserting a column; 419. a connecting ring; 42. a second connecting block; 421. a second connecting groove; 422. a second connection frame; 43. arching teeth; 44. a movable rod; 45. a movable groove; 5. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, the present invention provides a technical solution:
a large-load fastener is disclosed, as shown in fig. 1 to 5, and comprises a first sleeve body 1, a second sleeve body 2, a screw rod 3 and a fastening mechanism 4, wherein the screw rod 3 sequentially penetrates through the first sleeve body 1 and the second sleeve body 2, the fastening mechanism 4 is arranged between the first sleeve body 1 and the second sleeve body 2, the fastening mechanism 4 comprises a first connecting block 41, a second connecting block 42, arch teeth 43, a movable rod 44 and a fixed cone 415, the first connecting block 41 and the second connecting block 42 are respectively hinged to the outer surfaces of one end of the first sleeve body 1 and one end of the second sleeve body 2 near to the periphery at equal intervals in an annular shape, the arch teeth 43 are fixedly connected between the two groups of corresponding first connecting blocks 41 and second connecting blocks 42, a first connecting groove 411 and a second connecting groove 421 are respectively formed on the outer surfaces of one side of the first connecting block 41 and the second connecting block 42, a second connecting frame 422 is fixedly connected to the inner surface of the second connecting groove 421 near to the middle part, a first fixing shaft is fixedly connected to the inner surface of the second connecting frame 422 near the middle, and one end of the movable rod 44 is movably connected with the first fixing shaft;
one side of the inner surface of the first connecting groove 411 is provided with a sliding groove 412, the inner surface of the sliding groove 412 is slidably connected with a sliding block 413, the outer surface of one side of the sliding block 413 is fixedly connected with a first connecting frame 414, the inner surface of the first connecting frame 414 is fixedly connected with a second fixing shaft, one end of the movable rod 44, which is far away from the first fixing shaft, is movably connected with the second fixing shaft, the fixed cone 415 is fixedly connected with the outer surface of one side of the first connecting frame 414, a through hole is formed at the joint of the inner surface of the first connecting groove 411 and the fixed cone 415, and the fixed cone 415 penetrates through the through hole to the outer surface of the first connecting frame 414.
Through setting up fixed awl 415, can strut the tight in-process at hunch tooth 43, utilize movable rod 44 to promote fixed awl 415 and firmly prick the inside of wall body to improve the fastness of being connected between first sleeve body 1 and the wall body, reduce the not hard up probability of device, thereby improve its load strength and application scope.
As an embodiment of the present invention, as shown in fig. 7, a plurality of sets of arc-shaped fixing pieces 416 are fixedly connected to the outer surface of the first connecting frame 414 near the periphery of the fixing cone 415, and the cross section of each arc-shaped fixing piece 416 is triangular.
In the installation, the movable rod 44 drives the first connecting frame 414 to move along the direction of the sliding groove 412 under the pushing of the second connecting block 42 and the second connecting frame 422, and runs through the through hole to firmly insert into the inside of the wall body, at this moment, the plurality of groups of arch teeth 43 are in the shape of a mechanical claw to incline towards the direction of the wall body and are spread, and simultaneously, the firmness of the connection between the fixing cone 415 and the wall body is improved by arranging the arc-shaped fixing piece 416 to firmly insert into the inside of the wall body along with the fixing cone 415, so that the bearing capacity of the device is enhanced.
As an embodiment of the present invention, as shown in fig. 7, barbs 417 are fixedly connected to outer surfaces of both sides of the fixing cone 415, the barbs 417 are inclined toward the fixing cone 415 by 15 degrees, a cross section of the barbs 417 is arc-shaped, the barbs 417 and the arc-shaped fixing piece 416 are made of metal, and surfaces of the barbs 417 and the arc-shaped fixing piece 416 are plated with corrosion-resistant zinc.
In the use, firmly insert the inside of wall body along with fixed awl 415 through setting up arc stationary blade 416, improve first box 1 and wall connection's fastness to set up barb 417 and both mutually support through the surface at fixed awl 415, when strengthening fixed awl 415 and wall connection's fastness, improve fixed awl 415 to the degree of difficulty that breaks away from with the wall body under the exogenic action, thereby strengthened the bearing capacity and the stability of device.
As an embodiment of the invention, as shown in fig. 6, a connecting ring 419 is fixedly connected to one end of the outer surface of the first sleeve body 1 away from the first connecting block 41, a plurality of groups of inserting columns 418 are annularly and equidistantly distributed on the outer surface of the connecting ring 419, and the outer surface of the inserting column 418 is tapered near one end.
In the installation, the user runs through the inside to the prefabricated hole with the one end of device second cover body 2 earlier, wear out the prefabricated hole until first connecting block 41 and first cover body 1 articulated one end, at the in-process of punching, the aperture in prefabricated hole is the same with first cover body 1's external diameter, and then can guarantee the stability of device in the installation, then utilize cavity gecko blind rivet pincers to carry the one end that screw rod 3 is fixed with spacing block 5 and support the wall body, outwards spur, but at this in-process, first cover body 1 moves along with screw rod 3 easily, consequently, insert supplementary fixed awl 415 and arc stationary blade 416 of post 418 through setting up, improve first cover body 1 and wall connection's stability.
As an embodiment of the present invention, as shown in fig. 8, a movable groove 45 is formed at a connection portion between an outer surface of the connection ring 419 and the insertion column 418, one end of the insertion column 418, which is far away from the tapered shape, penetrates into the movable groove 45, a cross section of the movable groove 45 is T-shaped, an inner surface of the movable groove 45 is tightly attached to an outer surface of the insertion column 418, one end of the outer surface of the insertion column 418, which is far away from the movable groove 45, is provided with a thread, one end of the screw rod 3, which is far away from the first sleeve body 1, is fixedly connected with a stop block 5, the other end of the screw rod 3, which is sequentially penetrated through the first sleeve body 1 and the second sleeve body 2 and is in threaded connection with both, and the movable rod 44 and the arch teeth 43 are located around the screw rod 3.
In the installation process, the user firstly penetrates through one end of the second sleeve body 2 of the device to the inside of the prefabricated hole until the first connecting block 41 penetrates out of the prefabricated hole along with the hinged end of the first sleeve body 1, then the inserting column 418 is firmly inserted into the wall, so that the first sleeve body 1 is prevented from rotating in the installation process, the installation difficulty is reduced, in the process that the inserting column 418 is inserted into the wall along with the connecting ring 419, the inserting column 418 rotates around the movable groove 45 to enter the wall, then the hollow gecko nail pulling pliers are used for clamping one end of the screw rod 3 fixed with the limiting block 5 and resisting against the wall, the screw rod 3 is pulled outwards, after the first sleeve body 1 is connected, the user screws out the screw rod 3, then the object to be fixed or hung is fixed, and is in threaded connection with the first sleeve body 1 and the second sleeve body 2 again.
As an embodiment of the present invention, as shown in fig. 1, the cross section of the arch 43 is convex toward both sides at a position near the middle, and the thickness of the arch 43 increases from the middle to both ends.
In the use, if the arch tooth 43 receives the extrusion force of the second sleeve body 2 and is the mechanical claw shape and inclines to the wall body direction and struts, the thickness of the arch tooth 43 is gradually increased from the middle part to the two ends, the deformation capacity of the arch tooth 43 can be ensured, and simultaneously, the supporting force of the arch tooth 43 on the first connecting block 41 and the second connecting block 42 connected with the two ends of the arch tooth is improved, so that the firmness and the bearing capacity of the connection between the device and the wall body are enhanced.
The working principle is as follows: in the installation process, a user firstly penetrates one end of the second sleeve body 2 of the device into the prefabricated hole until one end of the first connecting block 41, which is hinged with the first sleeve body 1, penetrates out of the prefabricated hole, in the punching process, the aperture of the prefabricated hole is the same as the outer diameter of the first sleeve body 1, so that the stability of the device in the installation process can be ensured, then a hollow gecko nail pulling pliers is used for clamping one end of the screw rod 3, which is fixed with the limiting block 5, and abutting against a wall body, and pulling outwards, because the screw rod 3 is in threaded connection with the second sleeve body 2, in the process, the second sleeve body 2 pushes the second connecting block 42 in the direction close to the first sleeve body 1 and extrudes the arch teeth 43, at the moment, the first connecting block 41 and the second connecting block 42 respectively drive the first connecting frame 414 and the second connecting frame 422 inside the first connecting block 41 and the second connecting block 42 to respectively rotate towards one side of the first sleeve body 1 and the second sleeve body 2, the maximum rotation angle of the first connecting block 41 and the second connecting block 42 is 90 degrees, when the first connecting block 41 and the second connecting block 42 are vertically installed on the first sleeve body 1 and the second sleeve body 2, the movable rod 44 is also vertically installed on the first connecting block 41 and the second connecting block 42, and the second connecting block 42 continues to move along with the second sleeve body 2 toward the direction close to the first sleeve body 1, so that the movable rod 44 drives the first connecting frame 414 to move along the sliding groove 412 under the pushing of the second connecting block 42 and the second connecting frame 422, and the fixed cone 415 and the arc-shaped fixing piece 416 penetrate through the through hole and are firmly inserted into the wall, at this time, the plurality of sets of arch teeth 43 are inclined toward the wall in a mechanical claw shape and are opened.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a heavy load fastener, includes the first cover body (1), the second cover body (2), screw rod (3) and fastening device (4), its characterized in that: the screw rod (3) sequentially penetrates through the first sleeve body (1) and the second sleeve body (2), the fastening mechanism (4) is arranged between the first sleeve body (1) and the second sleeve body (2), the fastening mechanism (4) comprises a first connecting block (41), a second connecting block (42), arch teeth (43), a movable rod (44) and a fixed cone (415), the first connecting block (41) and the second connecting block (42) are respectively hinged to the outer surfaces of one end of the first sleeve body (1) and the outer surface of one end of the second sleeve body (2) at equal intervals in an annular mode and are close to the peripheral positions, the arch teeth (43) are fixedly connected between the first connecting block (41) and the second connecting block (42) which correspond to each other in two groups, a first connecting groove (411) and a second connecting groove (421) are respectively formed in the outer surfaces of one side of the first connecting block (41) and the second connecting block (42), and a second connecting frame (422) is fixedly connected to the inner surface of the second connecting groove (421) close to the middle part, a first fixed shaft is fixedly connected to the position, close to the middle part, of the inner surface of the second connecting frame (422), and one end of the movable rod (44) is movably connected with the first fixed shaft;
spout (412) have been seted up to one side of first connecting groove (411) internal surface, and the internal surface sliding connection of spout (412) has slider (413), and the first linking frame (414) of one side surface fixedly connected with of slider (413), the internal surface fixedly connected with second fixed axle of first linking frame (414), the one end and the second fixed axle swing joint of first fixed axle are kept away from in movable rod (44), fixed awl (415) fixed connection is in one side surface of first linking frame (414), the through-hole has been seted up to the internal surface of first connecting groove (411) and the junction of fixed awl (415), and fixed awl (415) run through to the surface of first linking frame (414) through the through-hole.
2. A high load fastener according to claim 1, wherein: the outer surface of the first connecting frame (414) is fixedly connected with a plurality of groups of arc-shaped fixing sheets (416) at positions close to the periphery of the fixing cone (415), and the cross sections of the arc-shaped fixing sheets (416) are triangular.
3. A high load fastener according to claim 2, wherein: the outer surfaces of two sides of the fixing cone (415) are fixedly connected with barbs (417), the barbs (417) incline towards the fixing cone (415) in a direction of 15 degrees, the cross section of the barbs (417) is arc-shaped, the barbs (417) and the arc-shaped fixing pieces (416) are made of metal materials, and anti-corrosion zinc is plated on the surfaces of the barbs (417) and the arc-shaped fixing pieces (416).
4. A high load fastener according to claim 1, wherein: one end, far away from the first connecting block (41), of the outer surface of the first sleeve body (1) is fixedly connected with a connecting ring (419), a plurality of groups of inserting columns (418) are annularly and equidistantly distributed on the outer surface of the connecting ring (419), and the positions, close to one end, of the outer surfaces of the inserting columns (418) are conical.
5. A high load fastener according to claim 4, wherein: the utility model discloses a screw rod, including go-between (419) and the interior surface of the cover body, the junction of go-between (419) outer surface and insert post (418) has seted up movable groove (45), and inserts post (418) and keep away from its inside that is conical one end and runs through to movable groove (45), the transversal T type of personally submitting of movable groove (45), and the internal surface of movable groove (45) closely laminates with the surface of inserting post (418), the one end of keeping away from movable groove (45) of the surface of inserting post (418) is provided with the screw thread, the one end fixedly connected with stopper (5) of first cover body (1) are kept away from in screw rod (3), and the other end runs through first cover body (1) and the second cover body (2) in proper order and with both equal threaded connection, movable rod (44) and hunch tooth (43) are located around screw rod (3).
6. A high load fastener according to claim 1, wherein: the cross section of the arch teeth (43) protrudes to both sides at a position close to the middle part, and the thickness of the arch teeth (43) increases gradually from the middle part to both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110587515.6A CN113530938B (en) | 2021-05-27 | 2021-05-27 | Large-load fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110587515.6A CN113530938B (en) | 2021-05-27 | 2021-05-27 | Large-load fastener |
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| Publication Number | Publication Date |
|---|---|
| CN113530938A true CN113530938A (en) | 2021-10-22 |
| CN113530938B CN113530938B (en) | 2022-09-27 |
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| CN202110587515.6A Active CN113530938B (en) | 2021-05-27 | 2021-05-27 | Large-load fastener |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU639479A3 (en) * | 1973-06-15 | 1978-12-25 | Fischer Arthur | Device for anchor attachment of building structures |
| BR9500443A (en) * | 1994-02-07 | 1995-10-03 | Haefele Gmbh & Co | Expansion pin |
| CN108167532A (en) * | 2017-11-17 | 2018-06-15 | 江苏壹鼎崮机电科技有限公司 | A kind of good locking pipe-hanger support of stability |
| CN210483774U (en) * | 2019-08-14 | 2020-05-08 | 四川大学 | Recoverable mechanical prestressed anchor rod |
| CN211423108U (en) * | 2019-12-27 | 2020-09-04 | 兰溪四泰五金有限公司 | Reinforced expansion pipe |
| CN211924678U (en) * | 2020-04-05 | 2020-11-13 | 江苏华杰不锈钢制品有限公司 | Expansion bolt with clamping block |
| CN213176355U (en) * | 2020-09-11 | 2021-05-11 | 绍兴联源金属科技有限公司 | Expansion screw assembly |
-
2021
- 2021-05-27 CN CN202110587515.6A patent/CN113530938B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU639479A3 (en) * | 1973-06-15 | 1978-12-25 | Fischer Arthur | Device for anchor attachment of building structures |
| BR9500443A (en) * | 1994-02-07 | 1995-10-03 | Haefele Gmbh & Co | Expansion pin |
| CN108167532A (en) * | 2017-11-17 | 2018-06-15 | 江苏壹鼎崮机电科技有限公司 | A kind of good locking pipe-hanger support of stability |
| CN210483774U (en) * | 2019-08-14 | 2020-05-08 | 四川大学 | Recoverable mechanical prestressed anchor rod |
| CN211423108U (en) * | 2019-12-27 | 2020-09-04 | 兰溪四泰五金有限公司 | Reinforced expansion pipe |
| CN211924678U (en) * | 2020-04-05 | 2020-11-13 | 江苏华杰不锈钢制品有限公司 | Expansion bolt with clamping block |
| CN213176355U (en) * | 2020-09-11 | 2021-05-11 | 绍兴联源金属科技有限公司 | Expansion screw assembly |
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| Publication number | Publication date |
|---|---|
| CN113530938B (en) | 2022-09-27 |
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Denomination of invention: A type of heavy-duty fastener Effective date of registration: 20230703 Granted publication date: 20220927 Pledgee: Ningbo Zhenhai Rural Commercial Bank Co.,Ltd. Jiulonghu sub branch Pledgor: Ningbo Kunyuan Fastener Co.,Ltd. Registration number: Y2023330001352 |
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Denomination of invention: A type of high load fastener Granted publication date: 20220927 Pledgee: Ningbo Zhenhai Rural Commercial Bank Co.,Ltd. Jiulonghu sub branch Pledgor: Ningbo Kunyuan Fastener Co.,Ltd. Registration number: Y2024330001035 |
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