CN112936174A - Bending strip-shaped mounting tool for split type unilateral bolt fastener - Google Patents
Bending strip-shaped mounting tool for split type unilateral bolt fastener Download PDFInfo
- Publication number
- CN112936174A CN112936174A CN202110153912.2A CN202110153912A CN112936174A CN 112936174 A CN112936174 A CN 112936174A CN 202110153912 A CN202110153912 A CN 202110153912A CN 112936174 A CN112936174 A CN 112936174A
- Authority
- CN
- China
- Prior art keywords
- split type
- bending
- connecting rod
- gasket
- bolt fastener
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to a bending strip-shaped mounting tool for a split type unilateral bolt fastener, wherein the split type unilateral bolt fastener comprises a round-head bolt, a split type gasket, a sleeve, a washer and a nut, the bending strip-shaped mounting tool comprises a front end threaded head and an operation connecting rod, the front end threaded head is arranged at the end part of the front section of the operation connecting rod, the middle section of the operation connecting rod is provided with a bending part, and the bending part is a Z-shaped bending part; when the bending strip-shaped mounting tool is used for mounting the split type unilateral bolt fastener, the split type unilateral bolt fastener is pushed into the mounting hole through the operating connecting rod, and in the pushing process, the included angle between the split type gasket and the horizontal plane is smaller than 15 degrees so as to enter the small-aperture mounting hole.
Description
Technical Field
The invention relates to the technical field of civil and architectural engineering and mechanical assembly, in particular to a bent strip-shaped mounting tool for a split type unilateral bolt fastener.
Background
Currently, in the fields of civil construction and mechanical installation, the installation requirement for connecting and fastening structural components is large. In the case of bolts which are currently in common use, when fastening and connecting members, workers need to work on both sides of the members at the same time, namely, insert a bolt with a nut on one side and then tighten the nut with a tool on the other side. The connecting and fastening method has simple structure, convenient operation and good bearing capacity, but is only suitable for the members with the open cross sections, and the common bolt and nut connecting and fastening method cannot be used in some special occasions, such as the connecting and fastening of the members with the closed cross sections or the members inconvenient to operate at the other side. Such as: in steel pipe structures and steel pipe concrete structures, beam column connection nodes cannot be fastened and installed by the common bolt-nut connection fastening method because steel pipe columns are closed sections and cannot be operated on two sides and can only be connected and installed on one side. At present, corresponding unilateral bolt products are not available in domestic markets, published related patents have similar products in foreign markets, namely too much weakening of a bolt rod or too few stress points of a bolt head, but the existing patents or products are difficult to apply large pretension force to the bolt in the installation stage to form a friction type bolt connecting joint, the bearing comprehensive mechanical property of the joint is not ideal, and the joint is greatly limited in application of building structure earthquake-resistant design.
Chinese patent application publication No. CN 108571505a discloses a deformation shrinkage self-replying split type unilateral bolt fastener and its mounting tool, in this application publication, the round-head bolt is sent into the mounting hole through the mounting tool and then continues to push the split type gasket inwards through the thimble, but the tool in this application publication still has some defects, because when the split type unilateral bolt fastener that the size specification is less is installed, the size of the trompil is also correspondingly less, and the original tool size does not change, thereby the degree that leads to the split type gasket to extrude the deformation on the mounting tool is not enough to pass through the round hole that opens, lead to the unable successful installation of split type unilateral bolt fastener.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a bending strip-shaped mounting tool for a split type unilateral bolt fastener, which realizes the quick mounting of the split type unilateral bolt fastener, has good working characteristics under the working condition that the size specification of the split type unilateral bolt is smaller and the size of an opening is correspondingly smaller, and has simple structure and easy operation.
The purpose of the invention can be realized by the following technical scheme:
a bending strip-shaped mounting tool for a split type unilateral bolt fastener comprises a round-head bolt, a split type gasket, a sleeve, a washer and a nut, and comprises a front end threaded head and an operation connecting rod, wherein the front end threaded head is arranged at the end part of the front section of the operation connecting rod;
when the split type unilateral bolt fastener is installed by using the bending long-strip-shaped installation tool, the sleeve, the washer and the nut are sequentially sleeved on the rear section of the operation connecting rod, the round-head bolt is fixedly installed on the front end thread head through threads, the split type gasket deforms and contracts, then the sleeve is arranged on the middle bending section of the bending part, the installation hole is pushed in through the operation connecting rod, in addition, the pushing process is carried out, and the included angle between the split type gasket and the horizontal plane is smaller than 15 degrees so as to be convenient for entering the small-bore installation hole.
Furthermore, the split type gasket is perpendicular to the middle bending section of the bending part in the pushing process.
Furthermore, the included angle alpha between the middle bending section of the bending part and the two ends ranges from 75 degrees to 85 degrees, and in the angle range, the split type gasket can be pushed in at a small angle similar to the horizontal angle during installation so as to enter the small-aperture installation hole.
Furthermore, the operation connecting rod is a flat connecting rod, so that the split gasket can be deformed to the maximum extent and can be narrowest, and the split gasket can conveniently enter the small-aperture mounting hole.
Furthermore, the widths of the front section and the rear section of the operating connecting rod are the same as the diameter of the front end screw head, and the operating connecting rod is stably installed and fixed.
Furthermore, the width of the middle bending section of the bending part is smaller than the length a of the leaf-shaped hole when the split type gasket deforms and contracts to the narrowest size, and the height of the middle bending section of the bending part is larger than the thickness h of the split type gasket.
Furthermore, the thickness of the operation connecting rod is smaller than the width b of the leaf-shaped hole when the split type gasket deforms and contracts to the narrowest size, and the split type gasket can be guaranteed to deform maximally to the narrowest.
Furthermore, the bending long-strip-shaped mounting tool further comprises a rear end thread head and a handle, wherein the rear end thread head is arranged at the end part of the rear section of the operation connecting rod, and the handle is fixedly arranged on the rear end thread head and is convenient to use and operate in a handheld mode.
Preferably, the bending position of the Z-shaped bending part is provided with a round chamfer, so that the split type gasket, the sleeve, the washer and the nut can be conveniently moved.
Furthermore, before the split type unilateral bolt fastener is installed by using the bent strip-shaped installation tool, the split type gasket, the sleeve, the washer and the nut are sequentially sleeved on the rear section of the operation connecting rod, and the bottom thread of the round-head bolt is screwed and fixed with the thread of the front end thread head;
when using this rectangular shape mounting tool of buckling to install split type unilateral bolt fastener before, at first send into the mounting hole with the round head bolt, then promote the middle bending segment of split type gasket to the kink, and with the split type gasket of hand power tight, make split type gasket and the middle bending segment mutually perpendicular of kink, pinch the split type gasket afterwards flat to warping the shrink state, promote the operation connecting rod again and push the split type gasket that will pinch the flat in the mounting hole, because the middle bending segment of kink is very big with both ends contained angle scope, it is close perpendicular, therefore the split type gasket is perpendicular with the middle bending segment of kink after, be in nearly horizontal position and push the mounting hole, split type gasket reachs the position and replies the rounding back, draw back the operation connecting rod, make round head bolt and split type gasket compress tightly, install the sleeve in proper order at last, packing ring and nut, accomplish the installation.
Compared with the prior art, the invention has the following advantages:
1) the middle section of the mounting tool is provided with the bent part, so that when the split gasket is pushed into the mounting hole, the included angle between the split gasket and the horizontal plane is small and approximately horizontal, the split gasket can be pushed into the mounting hole with small size easily, the mounting difficulty of the split unilateral bolt fastener under the condition of small opening size is solved, and the mounting tool is simple in structure, easy to operate and high in mounting efficiency;
2) the operation connecting rod is a flat metal strip bent at a large angle, the bent part is bent at a large angle, and the size and shape of the operation connecting rod are designed so that the split gasket of the split unilateral bolt fastener with a smaller size specification can be pushed into a corresponding mounting small hole at an approximately horizontal position in a state of deforming and shrinking to be very narrow, so that the problem that the split gasket is difficult to push or even cannot be pushed to complete mounting under the condition that a corresponding hole of a bolt with a small size is smaller in the conventional mounting tool is solved, and the mounting tool matched with the split unilateral bolt fastener is further perfected;
3) the invention has simple integral structure, only comprises four parts and is convenient for manufacturing and mass production;
4) the structure and the principle of the invention can also be applied to split type unilateral bolt fasteners with other specifications and sizes, a whole set of corresponding mounting tools can be formed, the operation is easy, and the overall adaptability and the mounting efficiency are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the front threaded head, the rear threaded head and the operating link of the present invention;
FIG. 3 is a schematic view comparing the size of the split spacer with the size of the mounting hole when the split spacer is compressed on the operating link and introduced into the opening hole according to the present invention;
FIG. 4 is a schematic view of the present invention comparing the size of a split shim as it is compressed over the operating linkage and passed into the opening;
FIG. 5 is a schematic view of the deformed and contracted self-restoring split gasket being fed into the mounting hole according to the present invention.
Wherein: 1. front end screw thread head, 2, operation connecting rod, 3, rear end screw thread head, 4, handle, 5, button head bolt, 6, split type gasket, 7, sleeve, 8, packing ring, 9, nut, 10, mounting hole.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
Examples
As shown in figure 1, the invention discloses a bending strip-shaped mounting tool for a split type unilateral bolt fastener, the split type unilateral bolt fastener comprises a round-head bolt 5, a split type gasket 6, a sleeve 7, a washer 8 and a nut 9, and the mounting tool is characterized by comprising a front end thread head 1 and an operation connecting rod 2, the front end thread head 1 is arranged at the end part of the front section of the operation connecting rod 2, a bending part 21 is arranged at the middle section of the operation connecting rod 2, the bending part 21 is a Z-shaped bending part, a rear end thread head 3 and a handle 4 can be further arranged at the rear section of the split type unilateral bolt fastener, the rear end thread head 3 is arranged at the end part of the rear section of the operation connecting rod 2, and the handle 4 is fixedly arranged on the rear end thread head 3 and is convenient to.
The operating link 2 is a flat link, and an included angle α between the middle bent section of the bent portion 21 and both ends is a large angle larger than 75 °, and preferably ranges from 75 ° to 85 °.
When using this rectangular shape mounting tool of buckling installation split type unilateral bolt fastener, sleeve 7, the back end of operation connecting rod 2 is located to packing ring 8 and nut 9 cover in proper order, button head bolt 5 passes through thread tightening and installs on front end thread head 1, split type gasket 6 warp shrink after the cover locate on the middle bending segment of kink 21, push into mounting hole 10 through operation connecting rod 2, and push into the in-process, split type gasket 6 and the middle bending segment mutually perpendicular of kink 21, and the contained angle between the horizontal plane is less than 15.
Specific examples are given below:
the utility model provides a rectangular shape mounting tool buckles for split type unilateral bolt fastener, as shown in figure 1, comprises front end screw thread head 1, operation connecting rod 2, rear end screw thread head 3, handle 4, and wherein operation connecting rod 2 is flat metal rectangular, is in the same place fixed with front end screw thread head 1 and rear end screw thread head 3, and operation connecting rod 2 middle segment department has the kink 21 of one section wide angle to guarantee that split type gasket pushes in with approximate level small angle.
As shown in fig. 2, the front end screw head 1 is integrally a cylinder, the front end of the surface is provided with an external thread structure, the external thread size parameter is the same as the thread at the tail part of the round head bolt 5 in the unilateral bolt fastener, the external thread size parameter can be tightly connected with the round head bolt 5, the rear end screw head 3 is consistent with the front end screw head 1 in characteristic, the external thread size parameter and the thread are fixed together with the operation connecting rod 2 in a welding mode, the main body of the handle 4 is made of bakelite, the upper part of the handle is provided with a threaded hole, the thread parameter is the same as the thread parameter of the rear end screw.
The whole operation connecting rod 2 is a flat metal strip, the material with higher strength is adopted, the middle section is processed into a bending part 21 with one section of bending angle, the middle bending section of the bending part 21 and the included angle of the upper end and the lower end are within the range of 75 degrees to 85 degrees, and the bending part of the operation connecting rod 2 is inverted with a round angle, so that the sleeve 7, the gasket 8 and the nut 9 can be conveniently installed in a moving and installing mode.
As shown in fig. 3 and 4, the widths of the upper and lower sections of the operation connecting rod 2 are similar to the diameters of the front end screw head 1 and the rear end screw head 3, the width of the middle bending section is smaller than the length a of the leaf-shaped hole when the split gasket 6 deforms and contracts to the narrowest size, the overall height of the operation connecting rod 2 is slightly smaller than the diameter d of the formed hole, the height of the middle bending section is slightly larger than the thickness h of the split gasket 6, and the overall thickness of the operation connecting rod 2 is smaller than the width b of the leaf-shaped hole when the split gasket 6 deforms and contracts to the narrowest size, so that the split gasket 6 can be sleeved into the middle bending part of the operation connecting rod 2 at a small angle similar to horizontal under a narrow state and.
The use method of the mounting tool for the bent strip-shaped split unilateral bolt fastener comprises the following steps:
before the installation, hold handle 4, will warp the shrink and place in the position that 2 rear ends of last operation connecting rod of the mounting tool that assemble are close to handle 4 from replying split type gasket 6, sleeve 7, packing ring 8 and nut 9 in proper order, screw up 5 bottom screw threads of button head bolt and 1 screw thread of the front end screw thread head of mounting tool, and split type gasket 6 boss is towards handheld direction.
During installation, firstly, the round-head bolt 5 is sent into the installation hole 10, then the split type gasket 6 is pushed to the middle bending section of the operation connecting rod 2, the split type gasket 6 is tightly pulled by hand, the split type gasket 6 is perpendicular to the middle bending section under the action of pulling force, because the middle bending section of the operation connecting rod 2 has a larger angle, the split type gasket 6 is positioned on the operation connecting rod 2 at a position with an approximate horizontal small angle at the moment, then the split type gasket 6 is pinched to a state with narrow deformation and contraction, the pinched deformation and contraction is pushed into the installation hole 10 from the restored split type gasket 6 by the operation connecting rod 2, after the gasket reaches the position and is restored to be round, the operation connecting rod 2 is pulled back, the convex surface of the split type gasket 6 can be installed in the hole through slight adjustment, meanwhile, the round-head bolt 5 is tightly pressed with the split type gasket 6, and finally, the sleeve 7, and finishing the installation.
The specific installation comprises the following steps:
1) the handle 4 is held by hand, and the deformed and contracted self-recovery split type gasket 6, the sleeve 7, the washer 8 and the nut 9 are sequentially placed on the assembled installation tool at the position, close to the handle 4, of the rear end of the operation connecting rod 2;
2) the bottom thread of the round-head bolt 5 is screwed with the front end thread head 1 of the mounting tool, and the boss of the split type gasket 6 faces to the hand-held direction;
3) sending the round-head bolt 5 into the mounting hole;
4) the split type gasket 6 is pushed to the middle bending section of the bending part 21 of the operation connecting rod 2, the split type gasket 6 is tightly pulled by hand, the split type gasket 6 is perpendicular to the bending section under the action of pulling force, and the split type gasket 6 is positioned on the operation connecting rod 2 at the position which is approximately horizontal and has a small angle at the moment because the middle bending section of the operation connecting rod 2 has a large angle;
5) the split type gasket 6 is pinched flat to a state of narrow deformation and contraction;
6) pushing the pinched deformed and contracted self-recovery split type gasket 6 into the mounting hole 10 by using the operation connecting rod 2;
7) after the gasket reaches the position and returns to be round, the operation connecting rod 2 is pulled back, the convex surface of the split type gasket 6 can be installed in the hole through slight adjustment, and meanwhile, the round-head bolt 5 is tightly pressed with the split type gasket 6;
8) the sleeve 7, the washer 8 and the nut 9 are installed according to the technical requirements, and the installation is completed.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and those skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The bending strip-shaped mounting tool for the split type unilateral bolt fastener comprises a round-head bolt (5), a split type gasket (6), a sleeve (7), a gasket (8) and a nut (9), and is characterized by comprising a front-end thread head (1) and an operation connecting rod (2), wherein the front-end thread head (1) is arranged at the end part of the front section of the operation connecting rod (2), a bending part (21) is arranged at the middle section of the operation connecting rod (2), and the bending part (21) is a Z-shaped bending part;
when the split type unilateral bolt fastener is installed by the bending long-strip-shaped installation tool, the sleeve (7), the washer (8) and the nut (9) are sequentially sleeved on the rear section of the operation connecting rod (2), the round-head bolt (5) is fixedly installed on the front end threaded head (1) through threads, the split type gasket (6) deforms and contracts, then the sleeve is sleeved on the middle bending section of the bending part (21), the installation hole (10) is pushed in through the operation connecting rod (2), the pushing-in process is carried out, and the included angle between the split type gasket (6) and the horizontal plane is smaller than 15 degrees.
2. The bending strip-shaped installation tool for the split single-side bolt fastener is characterized in that the split gasket (6) is perpendicular to the middle bending section of the bending part (21) in the pushing process.
3. The bending strip-shaped installation tool for the split type unilateral bolt fastener according to claim 2, wherein the included angle α between the middle bending section of the bending part (21) and the two ends ranges from 75 ° to 85 °.
4. The bending strip-shaped installation tool for the split type unilateral bolt fastener according to the claim 1, wherein the operating connecting rod (2) is a flat connecting rod.
5. The bending strip-shaped installation tool for the split type unilateral bolt fastener is characterized in that the widths of the front section and the rear section of the operating connecting rod (2) are the same as the diameter of the front end threaded head (1).
6. The bending elongated installation tool for the split type unilateral bolt fastener according to claim 4, wherein the width of the middle bending section of the bending part (21) is smaller than the length a of the leaf-shaped hole when the split type gasket (6) deforms and contracts to the narrowest size, and the height of the middle bending section is larger than the thickness h of the split type gasket (6).
7. The bending elongated installation tool for the split single-sided bolt fastener is characterized in that the thickness of the operating connecting rod (2) is smaller than the width b of the leaf-shaped hole when the split gasket (6) deforms and contracts to the narrowest size.
8. The bending strip-shaped mounting tool for the split type unilateral bolt fastener is characterized by further comprising a rear-end thread head (3) and a handle (4), wherein the rear-end thread head (3) is arranged at the end part of the rear section of the operating connecting rod (2), and the handle (4) is fixedly arranged on the rear-end thread head (3).
9. The bending elongated installation tool for the split type unilateral bolt fastener according to claim 1, wherein the bending position of the Z-shaped bending part is provided with a round chamfer.
10. The bending strip-shaped mounting tool for the split type unilateral bolt fastener is characterized in that before the split type unilateral bolt fastener is mounted by using the bending strip-shaped mounting tool, a split type gasket (6), a sleeve (7), a washer (8) and a nut (9) are sequentially sleeved on the rear section of an operation connecting rod (2), and the bottom thread of a round-head bolt (5) and the thread of a front-end thread head (1) are screwed and fixed;
when using this rectangular shape mounting tool of buckling to install split type unilateral bolt fastener before, at first send into mounting hole (10) round head bolt (5), then promote split type gasket (6) to the middle bending segment of kink (21), and with split type gasket (6) of hand power fastening, make split type gasket (6) and the middle bending segment mutually perpendicular of kink (21), hold between the fingers flat to warping the shrink state split type gasket (6) afterwards, promote again that operation connecting rod (2) will hold between the fingers split type gasket (6) and push in mounting hole (10), split type gasket (6) reach the position and reply the rounding back, back draw operation connecting rod (2), make round head bolt (5) compress tightly with split type gasket (6), install sleeve (7) at last in proper order, packing ring (8) and nut (9), accomplish the installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110153912.2A CN112936174B (en) | 2021-02-04 | 2021-02-04 | Bending strip-shaped mounting tool for split type unilateral bolt fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110153912.2A CN112936174B (en) | 2021-02-04 | 2021-02-04 | Bending strip-shaped mounting tool for split type unilateral bolt fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112936174A true CN112936174A (en) | 2021-06-11 |
| CN112936174B CN112936174B (en) | 2023-05-02 |
Family
ID=76243769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110153912.2A Active CN112936174B (en) | 2021-02-04 | 2021-02-04 | Bending strip-shaped mounting tool for split type unilateral bolt fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112936174B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105437149A (en) * | 2015-12-30 | 2016-03-30 | 同济大学 | Deformation retraction self-recovery type mounting tool for unilateral bolt fastener |
| CN110486365A (en) * | 2019-08-02 | 2019-11-22 | 陈娟娟 | A kind of unilateral side bolt fastener and its method |
| CN110900519A (en) * | 2019-11-27 | 2020-03-24 | 同济大学 | Sectional type split connection unilateral bolt fastener and mounting tool thereof |
| CN110936327A (en) * | 2019-11-27 | 2020-03-31 | 同济大学 | Thimble position adjustable unilateral bolt fastener mounting tool |
| CN111015566A (en) * | 2019-11-27 | 2020-04-17 | 同济大学 | Plate-shaped bending type split unilateral bolt fastener mounting tool |
| CN111055237A (en) * | 2019-11-27 | 2020-04-24 | 同济大学 | Hinge type deformation contraction self-recovery unilateral bolt fastener and mounting tool |
| CN210732329U (en) * | 2019-04-29 | 2020-06-12 | 宁波欣阳伟业进出口有限公司 | Mounting tool of unilateral bolt |
-
2021
- 2021-02-04 CN CN202110153912.2A patent/CN112936174B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105437149A (en) * | 2015-12-30 | 2016-03-30 | 同济大学 | Deformation retraction self-recovery type mounting tool for unilateral bolt fastener |
| CN210732329U (en) * | 2019-04-29 | 2020-06-12 | 宁波欣阳伟业进出口有限公司 | Mounting tool of unilateral bolt |
| CN110486365A (en) * | 2019-08-02 | 2019-11-22 | 陈娟娟 | A kind of unilateral side bolt fastener and its method |
| CN110900519A (en) * | 2019-11-27 | 2020-03-24 | 同济大学 | Sectional type split connection unilateral bolt fastener and mounting tool thereof |
| CN110936327A (en) * | 2019-11-27 | 2020-03-31 | 同济大学 | Thimble position adjustable unilateral bolt fastener mounting tool |
| CN111015566A (en) * | 2019-11-27 | 2020-04-17 | 同济大学 | Plate-shaped bending type split unilateral bolt fastener mounting tool |
| CN111055237A (en) * | 2019-11-27 | 2020-04-24 | 同济大学 | Hinge type deformation contraction self-recovery unilateral bolt fastener and mounting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112936174B (en) | 2023-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105437149B (en) | Deformation retraction self-recovery type mounting tool for unilateral bolt fastener | |
| CN108571505B (en) | Deformation shrinkage self-recovery split type unilateral bolt fastener with round corners | |
| US5970679A (en) | Metal loadbearing structure having structural connections with no welding or drilling | |
| CN108571510B (en) | Turnover type unilateral bolt fastener | |
| CN103541982A (en) | Nested-type single-side bolt fastener | |
| CN108571507B (en) | Deformation shrinkage self-recovery split type unilateral bolt fastener with cambered surface | |
| US3339952A (en) | Construction bolt or fastener | |
| CN112936174A (en) | Bending strip-shaped mounting tool for split type unilateral bolt fastener | |
| CN111055237B (en) | Hinge type deformation contraction self-recovery unilateral bolt fastener and mounting tool | |
| CN110936327B (en) | Thimble position adjustable unilateral bolt fastener mounting tool | |
| CN111015566B (en) | Plate-shaped bending type split unilateral bolt fastener mounting tool | |
| JP4362114B2 (en) | Reinforcing bar fittings | |
| CN213929121U (en) | Single-side screwing bolt for space-limited steel structure connection | |
| CN110977873B (en) | Stud bolt mounting tool and use method thereof | |
| CN209430573U (en) | A kind of crank arm type unilateral bolt fastener | |
| CN110685990A (en) | Folding gasket type unilateral bolt fastener | |
| CN107299931B (en) | Improved split assembly screw | |
| CN212177621U (en) | Fastening member of punching and shearing machine | |
| CN216973725U (en) | Bolt fastening assembly in unidirectional locking connection, corresponding node, steel pipe column and structure | |
| CN216299133U (en) | Wire-pulling locking structure without operating gap | |
| CN110259798A (en) | A kind of unilateral fastening bolt of extrusion pressing type | |
| CN219432431U (en) | Self-plugging rivet | |
| CN212715933U (en) | Wall post root concrete shutoff instrument | |
| CN218148856U (en) | Connecting piece for rod piece and ball joint in steel grid structure | |
| CN217652319U (en) | Steel pipe three-way connecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |