CN220030116U - Quick-dismantling self-locking fastening device - Google Patents
Quick-dismantling self-locking fastening device Download PDFInfo
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- CN220030116U CN220030116U CN202321720666.5U CN202321720666U CN220030116U CN 220030116 U CN220030116 U CN 220030116U CN 202321720666 U CN202321720666 U CN 202321720666U CN 220030116 U CN220030116 U CN 220030116U
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- clamping seat
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- 229910000831 Steel Inorganic materials 0.000 claims description 57
- 239000010959 steel Substances 0.000 claims description 57
- 230000000903 blocking effect Effects 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a fastening device, in particular to a quick-dismantling self-locking fastening device, and belongs to the technical field of fastening tools. The quick-dismantling self-locking fastening device comprises a gun barrel and various clamping seats capable of being replaced and dismounted, a faucet is arranged in the tail end pipe of the gun barrel, and the upper port of the clamping seat is spliced in the faucet through a quick-dismantling self-locking plug structure. The utility model has ingenious conception, can realize the fastening connection of the gun barrel and each clamping seat and has the self-locking function, so that the device is more stable and firm, and has the beneficial effects that: the disassembly and assembly are very convenient and quick, and the work efficiency is improved.
Description
Technical Field
The utility model relates to a fastening device, in particular to a quick-dismantling self-locking fastening device, and belongs to the technical field of fastening tools.
Background
In decoration and daily life, the gas nail shooter is used in more and more occasions, and is often used for installing and fixing line cards, riding cards, doors and windows and other occasions of various specifications. The plastic line cards commonly used in the market at present are provided with an elevator, a seat card and a pipe card, so that the matched card seat is required to be replaced according to the fixed specifications of different plastic line cards. The Chinese patent with publication number CN212193003U discloses a structure for fixing a pipe clamp by a gas nail gun, wherein a clamping seat of the structure of the patent is fixedly connected with a gun barrel of a line clamp by a screw; when the clamping seat is replaced, firstly, a spanner is used for loosening the screw, and then the clamping seat is taken down; the clamping seat which needs to be replaced is inserted into the clamping groove of the gun barrel of the line clamp, and then the spanner is used for tightening the screw, so that the replacement and fixation of the clamping seat can be completed. The technical scheme of this patent not only has to change cassette complex operation, still has the screw of fixed usefulness to loosen because of vibrations and takes off, causes the risk that the cassette drops. The Chinese patent publication No. CN217824022U discloses a device for fixing a line clip by a fastening tool, wherein a clamping seat and a gun barrel of the structure of the patent are fastened and connected with an annular clamping groove on the clamping seat by a plurality of steel balls uniformly distributed on the circumference; when different clamping seats are replaced, firstly, the sliding sleeve at the periphery of the gun barrel is pushed backwards by hands, so that the clamping seats can be quickly and conveniently taken down; and inserting the clamping seat which needs to be replaced into a gun barrel faucet, and loosening the sliding sleeve to finish the fixed connection of the clamping seat. The technical scheme of the patent can complete the quick assembly disassembly of the clamping seat without any tool, but the clamping seat can be taken down with little force when the sliding sleeve is not retracted, or the clamping seat still has the risk of falling off under the condition of the clamping nail.
Disclosure of Invention
The utility model aims to solve the defect of unstable installation in the prior art, and provides a quick-dismantling self-locking fastening device which is convenient for quickly replacing different clamping seats and has a self-locking function, so that the risk of falling off the clamping seats caused by the fault of clamping nails is avoided.
In order to achieve the purpose, the quick-dismantling self-locking fastening device comprises a gun barrel and replaceable and detachable clamping seats, wherein a faucet is arranged in the tail end pipe of the gun barrel, and the upper port of each clamping seat is spliced in the faucet through a quick-dismantling self-locking plug structure.
The periphery of the bell and spigot is provided with an annular groove for arranging a retainer ring, a plurality of round holes are uniformly distributed on the periphery of the middle part of the bell and spigot, steel balls axially moving along the holes are arranged in the round holes, and the periphery of the upper part of the bell and spigot is provided with a convex ring.
The quick-dismantling self-locking plug structure comprises a sliding sleeve, steel balls and a retainer ring, wherein the sliding sleeve is sleeved on the periphery of a gun barrel and is fixed through the retainer ring, a reset spring is arranged in a circular inner cavity of the sliding sleeve, an inner step is arranged at the upper end of the sliding sleeve, the inner step is provided with a step surface, the step surface is sequentially divided into an inclined compression surface, a self-locking compression surface and an unlocking groove, the outer edge of the steel balls and each step surface are contacted with each other to define the position of each clamping seat, an inserting head, an annular clamping groove and a conical guide section are sequentially arranged at the upper end of each clamping seat from top to bottom, and the bell and spigot sleeves are sleeved on the periphery of the upper end of each clamping seat and are matched with each other.
The retaining ring comprises a retaining ring and a steel wire retaining ring, wherein the upper end face of the retaining ring abuts against the reset spring, and the inner ring retaining surface of the retaining ring abuts against the steel wire retaining ring.
A gasket is arranged between the gun barrel and the sliding sleeve.
The clamping seat is limited by steel balls on the circumference of the gun barrel to form a gun barrel inner hole which is positioned on the same axis as the inner hole of the clamping seat, so that the self-centering of the clamping seat is realized.
The utility model can realize the rapid installation and removal of the clamping seat, and the clamping seat and the gun barrel have the following three positional relations:
when the inclined compression surface of the sliding sleeve is abutted against the outer edge of the steel ball, the bottom surface of the inner cavity of the sliding sleeve is in contact with one end of the reset spring, the inclined compression surface of the sliding sleeve is kept in contact with the outer edge of the steel ball under the acting force of the reset spring, the inner edge of the steel ball is embedded into the annular clamping groove of the clamping seat, the gun barrel is fixedly connected with the clamping seat, and the clamping seat is positioned at a fastening position.
When the steel ball in the annular clamping groove is pushed by the clamping seat to axially move until the self-locking compression surface of the sliding sleeve is abutted against the outer edge of the steel ball under the action of external force, the steel ball stops axially moving and locks the clamping seat, the external force received by the sliding sleeve is transmitted to the reset spring, the elastic force is transmitted to the steel wire check ring through the blocking ring, the outer edge of the steel wire check ring is ensured to be in contact with the blocking surface of the inner ring of the blocking ring, and the clamping seat is positioned at a self-locking position.
When the sliding sleeve moves to stop under the action of external force, the steel ball moves to the unlocking groove of the sliding sleeve along the axis under the action of the annular groove of the clamping seat, the gun barrel is separated from the clamping seat, and the clamping seat is in a separation position.
The clamping seat matched with the utility model comprises, but is not limited to, a line clamping seat, a horse riding clamping seat, a seat clamping seat, a pipe clamping seat, an elevator seat and the like.
The utility model has ingenious conception and has the beneficial effects that: the gun barrel can be fixedly connected with each clamping seat and simultaneously has a self-locking function, various gun nozzles can be quickly disassembled and replaced without tools, the device is more stable and firm due to the fact that steel balls are uniformly distributed to fix and self-lock, screw fastening locking commonly adopted in the market is avoided, the risk that the gun nozzle falls off due to screw loosening does not exist, the self-locking force is large, the sample tensile test loading is 2000N, and the gun nozzle does not fall off. Easy dismounting is swift, helps improving work efficiency.
Drawings
The utility model is further described below with reference to the accompanying drawings.
Fig. 1 is a perspective view of one embodiment of the present utility model.
Fig. 2 is a perspective exploded view of fig. 1.
Fig. 3 is a cross-sectional view of the sliding sleeve of fig. 1.
Fig. 4 is a cross-sectional view of the blocker ring of fig. 1.
Fig. 5 is a cross-sectional view of fig. 1.
Fig. 6 is a perspective view of various cartridges used in the present utility model.
The serial numbers and names in the figures are: the novel steel ball clamping device comprises a gun barrel 1, a bell and spigot 1-1, a steel ball 2, a washer 3, a sliding sleeve 4, an inclined pressing surface 4-1, a self-locking pressing surface 4-2, an unlocking groove 4-3, an inner cavity bottom surface 4-4, a return spring 5, a blocking ring 6, an inner ring blocking surface 6-1, a steel wire blocking ring 7, a line clamping seat 8, an annular clamping groove 8-1, a riding clamping seat 9, a clamping seat 10, a pipe clamping seat 11 and an elevator seat 12.
Description of the embodiments
Examples
The structure of the embodiment is shown in fig. 1-6, and comprises a gun barrel 1, a steel ball 2, a gasket 3, a sliding sleeve 4, a return spring 5, a blocking ring 6, a steel wire retainer ring 7 and a wire clamping seat 8. The lower end of the gun barrel 1 is provided with a gun pipe socket 1-1, and the upper end of the line clamp seat 8 is in communication plug-in connection with the gun pipe socket 1-1 through a quick-release self-locking plug-in structure. The outer wall of the upper part of the gun pipe bell and spigot 1-1 is provided with a gun pipe convex ring, and a gasket 3 is arranged between the gun pipe 1 and the sliding sleeve 4. The quick-dismantling self-locking plug structure comprises a sliding sleeve 4, a reset spring 5, steel balls 2, a blocking ring 6 and a steel wire retainer ring 7, wherein the upper end of a line clamp seat 8 is sequentially provided with a plug connector, an annular clamping groove 8-1 and a conical guide section from top to bottom, a gun barrel bell and spigot 1-1 is sleeved on the periphery of the upper end of the line clamp seat 8 and matched with the periphery of the upper end of the line clamp seat 8, a plurality of round holes are uniformly formed in the periphery of the gun barrel bell and spigot 1-1, the steel balls 2 are respectively embedded in the round holes, the inner edges of the steel balls 2 are respectively embedded in the annular clamping groove 8-1 of the line clamp seat, the outer edges of the steel balls 2 respectively abut against the inner wall of the sliding sleeve 4, and the bottom surface 4-4 of an inner cavity of the sliding sleeve 4 abuts against the reset spring 5. The upper end face of the blocking ring is abutted against the return spring 5, and the inner ring blocking surface is abutted against the steel wire blocking ring 7.
When the line clamping seat 8 is inserted into the gun barrel bell and spigot 1-1, the line clamping seat 8 is self-centered through the steel balls 2 in the circular holes uniformly distributed on the circumference of the gun barrel 1, so that the inner hole of the gun barrel 1 and the inner hole of the line clamping seat 8 are ensured to be positioned on the same axis;
the sliding sleeve 4 is provided with an inner step, an inclined compression surface 4-1 of the inner step of the sliding sleeve 4 is abutted against the outer edge of the steel ball 2 during operation, the bottom surface 4-4 of the inner cavity of the sliding sleeve 4 is contacted with one end of the return spring 5, the inclined compression surface 4-1 of the inner step of the sliding sleeve is always contacted with the outer edge of the steel ball 2 under the action of the return spring 5, and the inner edge of the steel ball 2 is also always contacted with the annular clamping groove 8-1 of the wire clamping seat 8, so that the effect of fastening the clamping seat is achieved;
under the action of external force, the wire clamping seat 8 pushes the steel ball 2 in the annular clamping groove to move axially, and at the moment, the self-locking compression surface 4-2 of the step in the sliding sleeve 4 abuts against the outer edge of the steel ball 2 and tightly locks the steel ball, so that the steel ball 2 stops moving axially; and meanwhile, the line clamping seat 8 is prevented from being separated from the bell and spigot 1-1 of the gun barrel, and finally the effect of fixing the self-locking line clamping seat is achieved.
Simultaneously, the elasticity of the return spring 5 is transferred to the steel wire check ring 7 through the check ring 6 under the action of external force of the sliding sleeve 4, and the steel wire check ring 7 is forced to generate a outwards-stretching movement trend. The outer edge of the steel wire retainer ring 7 is contacted with the inner ring blocking surface 6-1 of the blocking ring 6 and is firmly wrapped by the blocking ring 6, so that the steel wire retainer ring 7 is prevented from falling out of the annular groove of the bell and spigot 1-1, and the quick-release self-locking structure device is stable and reliable.
When unlocking, the sliding sleeve 4 is moved forward until the sliding sleeve cannot move any more, the wire clamping seat 8 is pulled out, the steel ball 2 axially moves into the unlocking groove 4-3 of the step in the sliding sleeve 4 under the action of the annular clamping groove 8-1 of the wire clamping seat, and the clamping seat can be taken down slightly and rapidly.
Experiments show that the embodiment has the following advantages:
1) Only the cartridge type such as cartridge 8, saddle cartridge 9, cartridge 10, pipe cartridge 11, elevator cartridge 12 need be replaced, but not limited thereto. Under the condition of no tool, the tool can be quickly disassembled and replaced, thereby being beneficial to improving the working efficiency;
2) Through the cooperation of the different inner step surfaces of the sliding sleeve 4 and the steel ball 2, the self-centering, self-locking and unlocking functions can be realized, and the self-centering self-locking and unlocking device has the advantages of simple structure and ingenious design.
Examples
The difference between this embodiment and the first embodiment is that: the line clamping gun nozzle is replaced by other parts, and the line clamping base is used for positioning and self-locking functions and other occasions.
In addition to the embodiments described above, other embodiments of the utility model are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the utility model.
Claims (8)
1. A quick detach auto-lock fastener, its characterized in that: including barrel and removable cassette of dismouting, be equipped with the bell and spigot in the terminal intraductal of barrel, the last port of cassette is pegged graft in the bell and spigot through quick detach auto-lock plug structure, quick detach auto-lock plug structure includes sliding sleeve, steel ball and retaining ring, the sliding sleeve cup joints the periphery at the barrel and passes through the retaining ring fixedly, reset spring is settled to the circular inner chamber of sliding sleeve, the upper end of sliding sleeve has interior step, interior step has the step face, the step face divide into slope compression face, auto-lock compression face and unblock recess in proper order, the outer fringe of steel ball and the position of each cassette of each step face contact definition, the upper end top-down of each cassette is equipped with bayonet joint, annular draw-in groove and toper guide section in proper order, bell and spigot joint dress is at the upper end periphery of each cassette and mutual matching.
2. The quick release self-locking fastening device of claim 1, wherein: the periphery of the bell and spigot is provided with an annular groove for arranging a retainer ring, a plurality of round holes are uniformly distributed on the periphery of the middle part of the bell and spigot, steel balls axially moving along the holes are arranged in the round holes, and the periphery of the upper part of the bell and spigot is provided with a convex ring.
3. The quick release self-locking fastening device of claim 1, wherein: the retaining ring comprises a retaining ring and a steel wire retaining ring, wherein the upper end face of the retaining ring abuts against the reset spring, and the inner ring retaining surface of the retaining ring abuts against the steel wire retaining ring.
4. The quick release self-locking fastening device of claim 1, wherein: when the inclined compression surface of the sliding sleeve is abutted against the outer edge of the steel ball, the bottom surface of the inner cavity of the sliding sleeve is in contact with one end of the reset spring, the inclined compression surface of the sliding sleeve is kept in contact with the outer edge of the steel ball under the acting force of the reset spring, the inner edge of the steel ball is embedded into the annular clamping groove of the clamping seat, the gun barrel is fixedly connected with the clamping seat, and the clamping seat is positioned at a fastening position.
5. The quick release self-locking fastening device of claim 1, wherein: when the steel ball in the annular clamping groove is pushed by the clamping seat to axially move until the self-locking compression surface of the sliding sleeve is abutted against the outer edge of the steel ball under the action of external force, the steel ball stops axially moving and locks the clamping seat, the external force received by the sliding sleeve is transmitted to the reset spring, the elastic force is transmitted to the steel wire check ring through the blocking ring, the outer edge of the steel wire check ring is ensured to be in contact with the blocking surface of the inner ring of the blocking ring, and the clamping seat is positioned at a self-locking position.
6. The quick release self-locking fastening device of claim 1, wherein: when the sliding sleeve moves to stop under the action of external force, the steel ball moves to the unlocking groove of the sliding sleeve along the axis under the action of the annular groove of the clamping seat, the gun barrel is separated from the clamping seat, and the clamping seat is in a separation position.
7. The quick release self-locking fastening device of claim 1, wherein: a gasket is arranged between the gun barrel and the sliding sleeve.
8. The quick release self-locking fastening device of claim 1, wherein: the clamping seat is limited by steel balls on the circumference of the gun barrel to form a gun barrel inner hole which is positioned on the same axis with the clamping seat inner hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321720666.5U CN220030116U (en) | 2023-07-03 | 2023-07-03 | Quick-dismantling self-locking fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321720666.5U CN220030116U (en) | 2023-07-03 | 2023-07-03 | Quick-dismantling self-locking fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220030116U true CN220030116U (en) | 2023-11-17 |
Family
ID=88734385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321720666.5U Active CN220030116U (en) | 2023-07-03 | 2023-07-03 | Quick-dismantling self-locking fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220030116U (en) |
-
2023
- 2023-07-03 CN CN202321720666.5U patent/CN220030116U/en active Active
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