CN221323099U - Expansion sleeve corrugated pipe coupler - Google Patents
Expansion sleeve corrugated pipe coupler Download PDFInfo
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- CN221323099U CN221323099U CN202322928499.XU CN202322928499U CN221323099U CN 221323099 U CN221323099 U CN 221323099U CN 202322928499 U CN202322928499 U CN 202322928499U CN 221323099 U CN221323099 U CN 221323099U
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- corrugated pipe
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- annular groove
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- 238000003825 pressing Methods 0.000 claims abstract description 47
- 239000003292 glue Substances 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims description 19
- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 239000011324 bead Substances 0.000 claims description 14
- 238000005452 bending Methods 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 9
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000011900 installation process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 241001391944 Commicarpus scandens Species 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an expansion sleeve corrugated pipe coupler which comprises a first deep-drawing inner cone, a corrugated pipe, a second deep-drawing inner cone, a first inner cone hole, a first outer cone, a first disc, a first round hole, a first bolt hole, a first inner threaded hole, a first bolt, a second inner cone hole, a second outer cone, a second disc, a second round hole, a second bolt hole, a second inner threaded hole, a second bolt, a first annular groove, a second annular groove, a first clamping ring, a first corrugated pipe layering, glue, a second clamping ring and a second corrugated pipe layering. According to the utility model, the two ends of the corrugated pipe are respectively adhered to the first deep-drawing inner cone and the second deep-drawing inner cone, then the corrugated pipe is pressed and welded in the first annular groove through the first corrugated pipe pressing strip, and the corrugated pipe is pressed and welded in the second annular groove through the second corrugated pipe pressing strip, so that the corrugated pipe is not easy to break or damage due to large torque in the use process, and the deviation of the transmission kinetic energy caused by overlarge gap in the installation process can be avoided.
Description
Technical Field
The utility model relates to the field of coupling operation, in particular to an expansion sleeve corrugated pipe coupling.
Background
The coupling is the basic process equipment for the production of the transmission industry and is called as the "industrial transmission master". As the basic industry of national economy, the expansion sleeve corrugated pipe coupler relates to industries such as metallurgy, mine, petroleum, chemical industry, hoisting, transportation, machinery, light industry, textile, water pump, fan and the like, and has a very wide application range.
However, the existing expansion sleeve corrugated pipe coupler is flexibly connected, so that the service life of the expansion sleeve corrugated pipe coupler is relatively short, two ends of a corrugated pipe are connected by clamping or bolts, the corrugated pipe is easily broken or damaged due to large torque in the use process, or the transmission kinetic energy is deviated due to overlarge gap in the installation process.
Therefore, improvements have to be made to the above-mentioned drawbacks.
Disclosure of utility model
The utility model aims to solve the technical problem of providing an expansion sleeve corrugated pipe coupler so as to solve the problem in the background technology.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
The utility model provides an expanding sleeve bellows shaft coupling, including the first deep-drawing type inner cone, bellows and the second deep-drawing type inner cone that connects gradually, be equipped with first inner cone hole in the middle of the first deep-drawing type inner cone, first inner cone hole in with first inner cone hole matched with first outer cone, first outer cone left end is equipped with first disc, first disc with first outer cone integrated into one piece, be equipped with on the first disc left end face and run through first disc and the first round hole of first outer cone, be equipped with a plurality of first bolt holes on the first disc, be equipped with a plurality of first internal screw holes with first bolt hole matched with first inner screw hole on the first deep-drawing type inner cone, insert with corresponding first inner screw hole first bolt hole on the first bolt hole, be equipped with the second inner cone hole in the second outer cone body with first outer cone integrated into one piece, be equipped with the second inner cone hole in the second inner cone hole, be equipped with the second inner cone hole in the second outer cone hole of second outer cone body, be equipped with the second inner cone hole in the second inner cone hole is equipped with the second inner cone hole in the second inner cone hole of second outer cone, be equipped with the second inner cone hole is equipped with the second annular groove, be equipped with on the second inner cone hole is equipped with the second inner cone hole of second outer cone hole of second inner cone, be equipped with the second inner cone hole is equipped with the annular groove, the corrugated pipe is characterized in that the first clamping ring and the corrugated pipe are integrally formed, a first corrugated pipe pressing strip used for pressing the first clamping ring into the first annular groove is arranged in the first annular groove, one end of the corrugated pipe is adhered to the inner end of the first deep-drawing inner cone through glue, the first corrugated pipe pressing strip is used for pressing the first clamping ring and then welding the first clamping ring into the first annular groove, a second clamping ring matched with the second annular groove is arranged at the other end of the corrugated pipe, the second clamping ring and the corrugated pipe are integrally formed, a second corrugated pipe pressing strip used for pressing the second clamping ring into the second annular groove is arranged in the second annular groove, the other end of the corrugated pipe is adhered to the inner end of the second deep-drawing inner cone through glue, and the second corrugated pipe pressing strip is used for pressing the second clamping ring and then welding the second clamping ring into the second annular groove.
Further, a plurality of first locking grooves are formed in the upper circumferential array of the right end face of the first outer cone, the outer ends of the first locking grooves are communicated with the outer surface of the first outer cone, the inner ends of the first locking grooves are communicated with the first round holes, a plurality of second locking grooves are formed in the upper circumferential array of the left end face of the second outer cone, the outer ends of the second locking grooves are communicated with the outer surface of the second outer cone, and the inner ends of the second locking grooves are communicated with the second round holes.
Further, the number of the first locking grooves and the second locking grooves is four.
Further, the first deep-drawing inner cone, the second deep-drawing inner cone, the first outer cone and the second outer cone are all made of 303 stainless steel, and the corrugated pipe is made of 304 stainless steel.
Further, the first clamping ring is formed by bending one end of the corrugated pipe through a bending machine, and the second clamping ring is formed by bending the other end of the corrugated pipe through a bending machine.
Further, the first corrugated pipe pressing strip is used for pressing the first clamping ring and then laser welding the first clamping ring in the first annular groove, and the second corrugated pipe pressing strip is used for pressing the second clamping ring and then laser welding the second clamping ring in the second annular groove.
Further, the first corrugated pipe pressing strip is a first circular strip which is formed by bending a first straight line in a pressing mode and matched with the first annular groove, and the second corrugated pipe pressing strip is a second circular strip which is formed by bending a second straight line in a pressing mode and matched with the second annular groove.
Further, the glue is epoxy resin glue.
Further, a first circular groove matched with the first disc is formed in the left end face of the first deep-drawing inner cone, the first circular groove is communicated with the first round hole, a second circular groove matched with the second disc is formed in the right end face of the second deep-drawing inner cone, and the second circular groove is communicated with the second round hole.
Further, the junction of the inner wall of the first circular groove and the bottom surface of the first circular groove is provided with a first inverted right angle, and the junction of the inner wall of the second circular groove and the bottom surface of the second circular groove is provided with a second inverted right angle.
The utility model has the beneficial effects that:
By adopting the technical scheme, as the two ends of the corrugated pipe are respectively adhered to the first deep-drawing inner cone and the second deep-drawing inner cone, the corrugated pipe is then compressed and welded in the first annular groove through the first corrugated pipe pressing strip, and is compressed and welded in the second annular groove through the second corrugated pipe pressing strip, the corrugated pipe is not easy to break or damage due to large torque in the use process, and the phenomenon that the transmission kinetic energy has deviation due to overlarge gap in the installation process can be avoided.
Drawings
FIG. 1 is a schematic perspective view of one embodiment of an expansion joint bellows coupling according to the present utility model;
FIG. 2 is a schematic diagram of a second perspective view of an embodiment of an expansion joint bellows coupling according to the present utility model;
FIG. 3 is a schematic diagram of the front view of one embodiment of an expansion joint bellows coupling according to the present utility model;
FIG. 4 is a schematic view of the cross-sectional structure of A-A in FIG. 1;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4B;
FIG. 6 is an enlarged schematic view of the structure of FIG. 4C;
Fig. 7 is a schematic perspective view of a first snap ring in an embodiment of an expansion joint bellows coupling according to the present utility model.
Figure number and description thereof:
1. A first deep drawing inner cone; 2. a bellows; 3. a second deep drawing inner cone; 4. a first outer cone; 5. a first locking groove; 6. a first disc; 7. a first bolt hole; 8. a second disc; 9. a second bolt; 10. a second outer cone; 11. a second locking groove; 12. a first circular groove; 13. a first bellows bead; 14. a second bellows bead; 15. a second circular groove; 16. a first chamfer angle; 17. a second chamfer angle; 18. a first annular groove; 19. a first snap ring; 20. a second annular groove; 21. and a second snap ring.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1 to 7, the expansion sleeve bellows coupling provided by the utility model comprises a first deep-drawing inner cone body 1, a bellows 2 and a second deep-drawing inner cone body 3 which are sequentially connected, wherein a first inner cone hole is arranged in the middle of the first deep-drawing inner cone body 1, a first outer cone 4 matched with the first inner cone hole is arranged in the first inner cone hole, a first disc 6 is arranged at the left end of the first outer cone 4, the first disc 6 and the first outer cone 4 are integrally processed and formed, a first round hole penetrating through the first disc 6 and the first outer cone 4 from left to right is arranged on the left end face of the first disc 6, a plurality of first bolt holes are arranged on the first disc 6, a plurality of first inner threaded holes matched with the first bolt holes are arranged on the first deep-drawing inner cone body 1, a first bolt 7 connected with the corresponding first inner threaded holes is inserted on each first bolt hole, a second inner cone hole is arranged in the middle of the second deep-drawing inner cone body 3, a second outer cone 10 matched with the second inner cone hole is arranged in the second inner cone hole, the right end of the second outer cone 10 is provided with a second disc 8, the second disc 8 and the second outer cone 10 are integrally processed and formed, the right end surface of the second disc 8 is provided with a second round hole which penetrates through the second disc 8 and the second outer cone 10 left and right, the second disc 8 is provided with a plurality of second bolt holes, the second deep-drawing inner cone body 3 is provided with a plurality of second inner threaded holes matched with the second bolt holes, each second bolt hole is inserted with a second bolt 9 connected with the corresponding second inner threaded hole, the inner end of the outer surface of the first deep-drawing inner cone body 3 is provided with a first annular groove 18, the inner end of the outer surface of the second deep-drawing inner cone 3 is provided with a second annular groove 20, one end of the corrugated pipe 2 is provided with a first clamping ring 19 matched with the first annular groove 18, the first clamping ring 19 and the corrugated pipe 2 are integrally formed, the first annular groove 18 is internally provided with a first corrugated pipe pressing strip 13 used for pressing the first clamping ring 19 into the first annular groove 18, one end of the corrugated pipe 2 is adhered to the inner end of the first deep-drawing inner cone 1 through glue, the first corrugated pipe pressing strip 13 is used for pressing the first clamping ring 19 and then welding the first clamping ring 19 into the first annular groove 18, the other end of the corrugated pipe 2 is provided with a second clamping ring 21 matched with the second annular groove 20, the second clamping ring 21 and the corrugated pipe 2 are integrally formed, the second annular groove 20 is internally provided with a second corrugated pipe pressing strip 14 used for pressing the second clamping ring 21 into the second annular groove 20, the other end of the corrugated pipe 2 is adhered to the inner end of the second deep-drawing inner cone 3 through glue, and the second pressing strip 14 is welded into the second annular groove 21. The first snap ring 19 and the second snap ring 21 have the same structure. The first circular hole, the first disc 6 and the first outer cone 4 are integrally formed, and the size of the hole is set according to the size of a connecting shaft which is required to be connected. The second circular hole is integrally formed with the second disc 8 and the second outer cone 10, and the size of the hole is set according to the size of a connecting shaft to be connected.
According to the technical scheme, the two ends of the corrugated pipe 2 are respectively adhered to the first deep-drawing inner cone 1 and the second deep-drawing inner cone 3, then the corrugated pipe is compressed and welded in the first annular groove 18 through the first corrugated pipe pressing strip 13, and the corrugated pipe is compressed and welded in the second annular groove 20 through the second corrugated pipe pressing strip 14, so that the corrugated pipe 2 is not easy to break or damage due to large torque in the using process, and deviation of driving kinetic energy caused by overlarge gap in the installation process can be avoided.
The corrugated pipe 2 is directly bonded with the first deep-drawing inner cone 1 and the second deep-drawing inner cone 3 by corrugated pipes, the first corrugated pipe pressing strip 13 and the second corrugated pipe pressing strip 14 are connected to the first annular groove 18 and the second annular groove 20 by rotary pressing devices, and the corrugated pipe is fixed by welding, so that the structure can improve torque, rotating speed, precision positioning and extreme temperature resistance, and the service performance of the corrugated pipe coupling is improved.
The purpose of the glue is mainly to enable the positions of the corrugated tube 2 close to the first clamping ring 19 and the second clamping ring 21 to be respectively fixed on the first deep-drawing inner cone 1 and the second deep-drawing inner cone 3, so that the first corrugated tube pressing strip 13 and the second corrugated tube pressing strip 14 are conveniently pressed and fixed and then welded, and deviation of transmission kinetic energy caused by overlarge gaps between the corrugated tube 2 and the first deep-drawing inner cone 1 and the second deep-drawing inner cone 2 in the installation process is avoided. In the technical scheme, the first annular groove 18 and the second annular groove 20 are the same annular groove, the first corrugated pipe pressing strip 13 and the second corrugated pipe pressing strip 14 are the same pressing strips, and the first clamping ring 19 and the second clamping ring 21 are the same clamping rings.
For example, in some embodiments, a plurality of first locking grooves 5 are circumferentially arranged on the right end surface of the first outer cone 4, the outer end of the first locking groove 5 is communicated with the outer surface of the first outer cone 4, the inner end of the first locking groove 5 is communicated with the first round hole, a plurality of second locking grooves 11 are circumferentially arranged on the left end surface of the second outer cone 10, the outer end of the second locking groove 11 is communicated with the outer surface of the second outer cone 10, and the inner end of the second locking groove 11 is communicated with the second round hole. In this way, the connecting shaft can be connected and locked by tightening the corresponding bolts to reduce the gap between the first locking groove 5 and the second locking groove 11.
For example, in some embodiments, the first locking groove and the second locking groove are each four. The four first locking grooves divide the first outer cone 4 into four first circular arc plates which can be coaxially tightened, and the four second locking grooves divide the second outer cone 10 into four second circular arc plates which can be coaxially tightened, so that the first outer cone 4 and the second outer cone 10 can be conveniently locked to corresponding connecting shafts. Of course, the first locking groove and the second locking groove may be provided in other numbers according to the actual use requirements, and are not limited to four in the preferred embodiment.
For example, in some embodiments, the first deep-drawing inner cone 1, the second deep-drawing inner cone 3, the first outer cone 4, and the second outer cone 10 are all made of 303 stainless steel, and the bellows 2 is made of 304 stainless steel. Thus, the usability of the corrugated pipe coupling can be improved.
For example, in some embodiments, the first clamping ring 19 is formed by bending one end of the corrugated tube 2 through a bending machine, and the second clamping ring 21 is formed by bending the other end of the corrugated tube 2 through a bending machine. In this way, the first clamping ring 19, the corrugated pipe 2 and the second clamping ring 21 can be integrally formed, and later adhesion, compaction and welding are facilitated. The structure is more compact, the corrugated pipe is not easy to break or damage due to large torque in the use process, and deviation of the transmission kinetic energy caused by overlarge gap in the installation process can be avoided.
For example, in some embodiments, the first bellows bead 13 compresses the first snap ring 19 and then laser welds the first annular groove 18, and the second bellows bead 14 compresses the second snap ring 21 and then laser welds the second annular groove 20.
For example, in some embodiments, the first bellows bead 13 is a first straight bead that is crimped into a first circular bead that mates with the first annular groove 18, and the second bellows bead 14 is a second straight bead that is crimped into a second circular bead that mates with the second annular groove 20.
For example, in some embodiments, the glue is an epoxy glue. However, other glues may be used instead, and are not limited to the epoxy glue in the preferred embodiment.
For example, in some embodiments, a first circular groove 12 matched with the first disc 6 is provided on the left end surface of the first deep-drawing inner cone 1, the first circular groove 12 is communicated with the first circular hole, a second circular groove 15 matched with the second disc 8 is provided on the right end surface of the second deep-drawing inner cone 3, and the second circular groove 15 is communicated with the second circular hole. The junction of the inner wall of the first circular groove 12 and the bottom surface of the first circular groove 12 is provided with a first inverted right angle 16, and the junction of the inner wall of the second circular groove 15 and the bottom surface of the second circular groove 15 is provided with a second inverted right angle 17. This allows the first disc 6 to slide along the first chamfer 16 to tighten the first outer cone 4 to lock the connection shaft and the second disc 8 to slide along the second chamfer 17 to tighten the second outer cone 10 to lock the connection shaft.
In summary, the two ends of the corrugated pipe are respectively adhered to the first deep-drawing inner cone and the second deep-drawing inner cone, then the corrugated pipe is compressed and welded in the first annular groove through the first corrugated pipe pressing strip, and the corrugated pipe is compressed and welded in the second annular groove through the second corrugated pipe pressing strip, so that the corrugated pipe is not easy to break or damage due to large torque in the using process, and deviation of transmission kinetic energy caused by overlarge gap in the installation process can be avoided.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (10)
1. The expansion sleeve corrugated pipe coupler is characterized by comprising a first deep-drawing inner cone, a corrugated pipe and a second deep-drawing inner cone which are sequentially connected, wherein a first inner cone hole is formed in the middle of the first deep-drawing inner cone, a first outer cone matched with the first inner cone hole is arranged in the first inner cone hole, a first disc is arranged at the left end of the first outer cone, the first disc and the first outer cone are integrally formed, a first round hole penetrating through the first disc and the first outer cone from left to right is formed in the left end face of the first disc, a plurality of first bolt holes are formed in the first disc, a plurality of first inner threaded holes matched with the first bolt holes are formed in the first deep-drawing inner cone, a first bolt connected with the corresponding first inner threaded holes is inserted in each first bolt hole, a second inner cone hole is formed in the middle of the second deep-drawing inner cone, the second outer cone matched with the second inner cone in the second inner cone hole, the right end of the second outer cone is provided with a second disc, the second disc and the second outer cone are integrally processed and formed, the right end surface of the second disc is provided with a second round hole which penetrates through the second disc and the second outer cone left and right, the second disc is provided with a plurality of second bolt holes, the second deep-drawing inner cone is provided with a plurality of second inner threaded holes matched with the second bolt holes, each second bolt hole is inserted with a second bolt connected with the corresponding second inner threaded hole, the inner end of the outer surface of the first deep-drawing inner cone is provided with a first annular groove, the inner end of the outer surface of the second deep-drawing inner cone is provided with a second annular groove, one end of the corrugated pipe is provided with a first clamping ring matched with the first annular groove, the corrugated pipe is characterized in that the first clamping ring and the corrugated pipe are integrally formed, a first corrugated pipe pressing strip used for pressing the first clamping ring into the first annular groove is arranged in the first annular groove, one end of the corrugated pipe is adhered to the inner end of the first deep-drawing inner cone through glue, the first corrugated pipe pressing strip is used for pressing the first clamping ring and then welding the first clamping ring into the first annular groove, a second clamping ring matched with the second annular groove is arranged at the other end of the corrugated pipe, the second clamping ring and the corrugated pipe are integrally formed, a second corrugated pipe pressing strip used for pressing the second clamping ring into the second annular groove is arranged in the second annular groove, the other end of the corrugated pipe is adhered to the inner end of the second deep-drawing inner cone through glue, and the second corrugated pipe pressing strip is used for pressing the second clamping ring and then welding the second clamping ring into the second annular groove.
2. The expansion sleeve bellows coupling of claim 1, wherein a plurality of first locking grooves are circumferentially arranged on a right end face of the first outer cone, an outer end of the first locking grooves is communicated with an outer surface of the first outer cone, an inner end of the first locking grooves is communicated with the first circular hole, a plurality of second locking grooves are circumferentially arranged on a left end face of the second outer cone, an outer end of the second locking grooves is communicated with an outer surface of the second outer cone, and an inner end of the second locking grooves is communicated with the second circular hole.
3. The expansion joint bellows coupling of claim 2, wherein the first locking groove and the second locking groove are four.
4. The expansion sleeve bellows coupling of claim 1, wherein the first deep drawing inner cone, the second deep drawing inner cone, the first outer cone and the second outer cone are all 303 stainless steel, and the bellows is 304 stainless steel.
5. The expansion sleeve corrugated pipe coupling according to claim 1, wherein the first clamping ring is formed by bending one end of a corrugated pipe through a bending machine, and the second clamping ring is formed by bending the other end of the corrugated pipe through a bending machine.
6. The expansion sleeve bellows coupling of claim 1, wherein the first bellows bead compresses the first snap ring and then laser welds in the first annular groove, and the second bellows bead compresses the second snap ring and then laser welds in the second annular groove.
7. The expansion joint bellows coupling of claim 1, wherein the first bellows bead is a first linear bar press bent into a first circular bar that mates with the first annular groove, and the second bellows bead is a second linear bar press bent into a second circular bar that mates with the second annular groove.
8. The expansion sleeve bellows coupling of claim 1, wherein the glue is an epoxy glue.
9. The expansion sleeve corrugated pipe coupler according to claim 1, wherein a first circular groove matched with the first circular disc is formed in the left end face of the first deep-drawing inner cone, the first circular groove is communicated with the first circular hole, a second circular groove matched with the second circular disc is formed in the right end face of the second deep-drawing inner cone, and the second circular groove is communicated with the second circular hole.
10. The expansion sleeve bellows coupling of claim 9, wherein a first chamfer is provided at a junction of the inner wall of the first circular groove and the bottom surface of the first circular groove, and a second chamfer is provided at a junction of the inner wall of the second circular groove and the bottom surface of the second circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322928499.XU CN221323099U (en) | 2023-10-30 | 2023-10-30 | Expansion sleeve corrugated pipe coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322928499.XU CN221323099U (en) | 2023-10-30 | 2023-10-30 | Expansion sleeve corrugated pipe coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221323099U true CN221323099U (en) | 2024-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322928499.XU Active CN221323099U (en) | 2023-10-30 | 2023-10-30 | Expansion sleeve corrugated pipe coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221323099U (en) |
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2023
- 2023-10-30 CN CN202322928499.XU patent/CN221323099U/en active Active
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