CN210830053U - Fastening device - Google Patents
Fastening device Download PDFInfo
- Publication number
- CN210830053U CN210830053U CN201921459045.XU CN201921459045U CN210830053U CN 210830053 U CN210830053 U CN 210830053U CN 201921459045 U CN201921459045 U CN 201921459045U CN 210830053 U CN210830053 U CN 210830053U
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- mounting groove
- piece
- groove
- connecting piece
- mounting
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Abstract
The utility model belongs to the field of fastening members, in particular to a fastening device, which comprises a connecting piece, a locking piece, a clamping piece and an installation piece; one end of the connecting piece is provided with external threads and is rotatably connected with one end of the locking piece; the other end of the locking piece is provided with an opening clamping groove, and the locking piece is made of a plastic material; the clamping piece is arranged in the opening clamping groove and is in interference fit with the opening clamping groove; the one end of installed part is equipped with first mounting groove, and first mounting groove is equipped with the internal thread that matches with the external screw thread, and the bottom of first mounting groove is equipped with the second mounting groove, and the second mounting groove can be gone into to the other end of retaining member card just, and first mounting groove forms spacing step with the second mounting groove, and spacing step can restrict the connecting piece and continue to stretch into toward first mounting groove. This device extrudees the retaining member through the threaded connection who rotates connecting piece and first mounting groove, and the light opening draw-in groove that makes the fastener crowded causes retaining member inflation expansion card in the second mounting groove. The utility model discloses simple to operate, it is laborsaving, the fastening effect is fabulous.
Description
Technical Field
The utility model belongs to the fastening member field, concretely relates to fastening device.
Background
A fastening device convenient for construction (application number: 201820686447.2, application date: 2018.5.9) discloses a fastening device which comprises a connecting piece, a mounting piece and a locking piece, wherein one end of the connecting piece is provided with a locking piece locking groove with an outer diameter smaller than that of the connecting piece, the locking piece is arranged in the locking piece locking groove in an interference manner, one end of the mounting piece is provided with a first mounting groove and a second mounting groove, the locking piece locking groove is inserted into the second mounting groove, the locking piece locking groove can be extruded due to the fact that the locking piece is arranged in the locking piece locking groove in the interference manner, the locking piece locking groove is deformed and expanded, therefore, the outer wall of the locking piece locking groove is fastened with the inner wall of the second mounting. The device has some advantages, such as simple structure and convenient use. But also discover not few problems in the in-service use process, for example, structural design requires too much, it is too big when retaining member and retaining member locking groove magnitude of interference, it is extremely hard to push first mounting groove with the connecting piece during then installation, and the inconvenient application of force of this structure, often too much because of interference resistance is too big, can't judge whether retaining member locking groove completely submerged in the second mounting groove at all, and it is too little when retaining member and retaining member locking groove magnitude of interference, then the device effect of connection can be very not good, easily drop, in addition, even if set up retaining member and retaining member locking groove magnitude of interference ground just, nevertheless also be unfavorable for the dismantlement, or can't dismantle at all, can only destroy the device.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above-mentioned problem, a fastener is provided, has effectively improved the inconvenient problem of installation, can also further improve firm in connection nature, and convenient to detach recycles.
The utility model provides a fastening device, which comprises a connecting piece, a locking piece, a clamping piece and an installation piece; one end of the connecting piece is provided with external threads and is rotatably connected with one end of the locking piece; the other end of the locking piece is provided with an opening clamping groove, and the locking piece is made of a plastic material; the clamping piece is arranged in the opening clamping groove and is in interference fit with the opening clamping groove; the one end of installed part is equipped with first mounting groove, and first mounting groove is equipped with the internal thread that matches with the external screw thread, and the bottom of first mounting groove is equipped with the second mounting groove, and the second mounting groove can be gone into to the other end of retaining member card just, and first mounting groove forms spacing step with the second mounting groove, and spacing step can restrict the connecting piece and continue to stretch into toward first mounting groove.
As a further optimization of the utility model, the clamping piece is in the shape of a ball or a cone.
As a further optimization of the utility model, the other end of the locking piece is provided with a chamfer or a conical structure.
As a further optimization of the utility model, the outer wall of the connecting piece is provided with a connecting piece caliper groove; the outer wall of the mounting part is provided with a mounting part clamp groove.
The utility model provides a pair of fastening device extrudes the retaining member through the threaded connection who rotates connecting piece and first mounting groove, and the light opening draw-in groove that makes the fastener crowded into causes retaining member inflation expansion card in the second mounting groove. The utility model discloses simple to operate, it is laborsaving, the fastening effect is fabulous.
Drawings
FIG. 1 is a sectional view of the assembly of the present invention;
FIG. 2 is a sectional view of the connecting member;
FIG. 3 is a cross-sectional structural view of the mounting member;
the connecting piece comprises a connecting piece 1, a connecting piece clamp groove 11, a T-shaped notch 12, a locking piece 2, an opening clamping groove 21, a T-shaped bulge 22, a clamping piece 3, an installation piece 4, a first installation groove 41, a second installation groove 42, an installation piece clamp groove 43 and a limiting step 44.
Detailed Description
The present invention will be described in detail with reference to the following specific examples.
As shown in fig. 1 to 3, the present embodiment provides a fastening device including a connecting member 1, a locking member 2, a clip member 3, and a mounting member 4. One end of the connecting piece 1 is cylindrical, the outer wall of the end is provided with external threads, and the end is also provided with a T-shaped notch 12. One end of the locking piece 2 is provided with a T-shaped bulge 22 matched with the T-shaped notch 12 in shape, and the T-shaped bulge 22 is buckled into the T-shaped notch 12, so that the locking piece 2 and the connecting piece 1 can be rotatably connected.
The other end of retaining member 2 is equipped with opening draw-in groove 21, and fastener 3 is installed in opening draw-in groove 21 and with opening draw-in groove 21 interference fit, and fastener 3 is installed promptly and makes opening draw-in groove 21 deformation expansion in opening draw-in groove 21, therefore retaining member 2 is deformable material after the extrusion, for example plastic material etc. say so.
One end of mounting part 4 is equipped with cylindric first mounting groove 41, is equipped with the internal thread on the arc inner wall of first mounting groove 41, and the internal thread can match with the external screw thread on the connecting piece 1 outer wall. The bottom of the first mounting groove 41 is provided with a second mounting groove 42, the second mounting groove 42 can be cylindrical or prismatic, as long as the shape and size of the second mounting groove 42 can be ensured to be the same as that of the other end of the locking member 2, so that the other end of the locking member 2 can be just clamped into the second mounting groove 42, and in order to ensure that the part of the locking member 2 except the T-shaped bulge 22 can be completely immersed into the second mounting groove 42, the length of the part of the locking member 2 except the T-shaped bulge 22 is smaller than the depth of the second mounting groove 42. The width dimension of second mounting groove 42 should be less than the external diameter of first mounting groove 41, just so can guarantee that first mounting groove 41 and second mounting groove 42 form spacing step 44, make spacing step 44 can restrict connecting piece 1 and continue to stretch into toward first mounting groove 41, play the position limit and remind the effect.
The clamping piece 3 in this embodiment is a steel body in the shape of a ball, but the clamping piece 3 should not be limited to a cylinder, but may also be in the shape of a cone, etc., and the clamping piece 3 is not limited to steel, and may also be aluminum, copper or any other hard material.
In order to facilitate the other end of the locker 2 to be well inserted into the second mounting groove 42, the other end of the locker 2 may be chamfered or directly formed in a conical structure.
In order to facilitate the application of force when the external thread of the connecting piece 1 is connected with the internal thread of the first mounting groove 41, the connecting piece clamping groove 11 is arranged on the outer wall of the connecting piece 1, the mounting piece clamping groove 43 is arranged on the outer wall of the mounting piece 4, and the connecting piece clamping groove 11 and the mounting piece clamping groove 43 can be clamped by a clamp during mounting, so that the application of force is facilitated.
The connecting piece 1 and the locking piece 2 of the device are of a separated structure, so that the material of the connecting piece 1 has more choices and is not required to be consistent with that of the locking piece 2; secondly, the locking piece 2 is extruded through threaded connection, so that the device is labor-saving in installation and convenient to disassemble; in addition, the device comprises threaded connection and interference fit, and connection is very firm due to double guarantee.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. A fastening device is characterized by comprising a connecting piece, a locking piece, a clamping piece and a mounting piece; one end of the connecting piece is provided with external threads and is rotatably connected with one end of the locking piece; the other end of the locking piece is provided with an opening clamping groove, and the locking piece is made of a plastic material; the clamping piece is arranged in the opening clamping groove and is in interference fit with the opening clamping groove; the one end of installed part is equipped with first mounting groove, and first mounting groove is equipped with the internal thread that matches with the external screw thread, and the bottom of first mounting groove is equipped with the second mounting groove, and the second mounting groove can be gone into to the other end of retaining member card just, and first mounting groove forms spacing step with the second mounting groove, and spacing step can restrict the connecting piece and continue to stretch into toward first mounting groove.
2. A fastening device according to claim 1 wherein the clamping member is in the form of a bead or cone.
3. A fastening device according to claim 1 wherein the other end of the locking member is chamfered or has a conical configuration.
4. The fastening device of claim 1, wherein the outer wall of the connector is provided with a connector caliper slot; the outer wall of the mounting part is provided with a mounting part clamp groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459045.XU CN210830053U (en) | 2019-09-03 | 2019-09-03 | Fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459045.XU CN210830053U (en) | 2019-09-03 | 2019-09-03 | Fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210830053U true CN210830053U (en) | 2020-06-23 |
Family
ID=71276655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921459045.XU Active CN210830053U (en) | 2019-09-03 | 2019-09-03 | Fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210830053U (en) |
-
2019
- 2019-09-03 CN CN201921459045.XU patent/CN210830053U/en active Active
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