CN111283105A - Central air conditioning alloy connecting pipe fitting processing die - Google Patents
Central air conditioning alloy connecting pipe fitting processing die Download PDFInfo
- Publication number
- CN111283105A CN111283105A CN202010204265.9A CN202010204265A CN111283105A CN 111283105 A CN111283105 A CN 111283105A CN 202010204265 A CN202010204265 A CN 202010204265A CN 111283105 A CN111283105 A CN 111283105A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- die
- pipe fitting
- telescopic
- groove
- 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
- 239000000956 alloy Substances 0.000 title claims abstract description 29
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 29
- 238000004378 air conditioning Methods 0.000 title claims abstract description 12
- 238000003754 machining Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to the field of die machining, in particular to a central air-conditioning alloy connecting pipe fitting machining die which comprises a base, a first die and a second die, wherein the first die is fixedly connected to the base, a semicircular arc first groove is formed in one side of the first die, a plurality of telescopic grooves are symmetrically formed in the first groove, a plurality of spring telescopic rods are symmetrically and fixedly connected to the inner sides of the telescopic grooves, telescopic walls are fixedly connected to the output ends of the spring telescopic rods, the two sides of each telescopic wall are inclined structures and are symmetrically arranged with the telescopic grooves, sliding grooves are formed in the base, sliding blocks are inserted in the sliding grooves, the tops of the sliding blocks are fixedly connected with the bottoms of the second die, a second groove is formed in one side of the second die corresponding to the first die, and the structures of the second groove and the first groove are consistent. The pipe fitting flaring machine is simple in structure, capable of avoiding breakage when a pipe fitting is flared, capable of improving the pipe fitting machining efficiency and suitable for popularization.
Description
Technical Field
The invention relates to the field of mold processing, in particular to a processing mold for a central air-conditioning alloy connecting pipe fitting.
Background
The central air conditioner is a large-scale electrical appliance frequently used in modern society, and in the installation process of the central air conditioner, in order to connect various pipelines with each other, an alloy connecting pipe fitting needs to be used, flaring treatment needs to be carried out before the alloy connecting pipe fitting is used, so that the alloy connecting pipe fitting can be sleeved on the pipeline needing to be connected, and welding is facilitated.
When the flaring of the alloy connecting pipe fitting is carried out, a die is usually used, a traditional flaring die is wide in one end and narrow in the other end, and a flaring male die is inserted into one end of the alloy connecting pipe fitting to enable one end of the alloy connecting pipe fitting to expand outwards to form flaring.
Therefore, the machining die for the alloy connecting pipe fitting of the central air conditioner is provided, and can apply pressure to the inside and the outside of the alloy connecting pipe fitting when the alloy connecting pipe fitting is flared, so that the fracture caused by flaring is avoided, and the machining efficiency of the alloy connecting pipe fitting is improved.
Disclosure of Invention
In order to solve the problems, the invention provides a central air-conditioning alloy connecting pipe fitting processing die which can simultaneously apply pressure to the inside and the outside of the alloy connecting pipe fitting when the alloy connecting pipe fitting is flared, avoid the fracture caused by flaring and improve the processing efficiency of the alloy connecting pipe fitting.
In order to achieve the purpose, the invention adopts the following technical scheme that the processing die for the alloy connecting pipe fitting of the central air conditioner comprises a base, a first die and a second die, wherein the first die is fixedly connected on the base, one side of the first die is provided with a semicircular first groove, a plurality of telescopic grooves are symmetrically formed in the first groove, a plurality of spring telescopic rods are symmetrically and fixedly connected in the telescopic grooves, the output ends of the spring telescopic rods are fixedly connected with telescopic walls which are both arc-shaped structures, both sides of each telescopic wall are inclined structures and are symmetrically arranged with the telescopic grooves, sliding grooves are formed in the base, sliding blocks are inserted in the sliding grooves, the tops of the sliding blocks are fixedly connected with the bottoms of the second die, the second die is symmetrically arranged with the first die, and one side of the second die, which corresponds to the first die, is provided with a second groove, the second groove and the first groove are symmetrically arranged, and the structures of the second groove and the first groove are consistent;
the utility model discloses a mould, including a mould, a mould inner symmetry fixedly connected with pneumatic cylinder, the output fixedly connected with expansion bracket of a pneumatic cylinder, a plurality of inflation pieces of bottom symmetry fixedly connected with of expansion bracket, the inflation piece is circular-arc structure and leanin, the inflation piece with flexible wall symmetry sets up, the bottom diameter of inflation piece all is less than the internal diameter of flexible wall, pneumatic cylinder No. two of one side fixedly connected with of base, the output fixedly connected with flaring terrace die of pneumatic cylinder No. two, the flaring terrace die with inflation piece symmetry sets up, the external diameter of flaring terrace die is greater than the internal diameter of flexible wall.
As a preferred technical scheme of the invention, the telescopic frame is symmetrically provided with threads, the telescopic frame is in threaded connection with the adjusting nuts, and the telescopic frame is engraved with the scale.
As a preferable technical scheme, the base is symmetrically inserted with a sliding rod and a threaded rod, the sliding rod and the threaded rod penetrate through the second die and are inserted on one side of the first die, one side of the base is fixedly connected with a rotating motor, and the output end of the rotating motor is fixedly connected with one end of the threaded rod.
As a preferred technical scheme, the second mold is fixedly connected with a fixing pile at the bottom of the second groove, elastic frames are symmetrically and fixedly connected to the fixing pile, and rollers are inserted into the elastic frames.
As a preferable technical scheme of the invention, the inner sides of the telescopic walls are fixedly connected with rubber pads.
As a preferable technical scheme of the invention, the bottom of the flaring male die is of a conical structure.
The invention has the beneficial effects that:
1. the invention can simultaneously apply pressure to the inside and the outside of the alloy connecting pipe fitting when the alloy connecting pipe fitting is flared, avoid the fracture caused by the flaring and improve the processing efficiency of the alloy connecting pipe fitting.
2. The invention designs the telescopic wall, the telescopic wall can simultaneously apply pressure to the inner wall and the outer wall of the pipe fitting when the pipe fitting is flared by matching with the expansion block, so that the clamping effect is formed, the generation of fracture is avoided, and meanwhile, the modularized telescopic wall can adapt to flaring at different depths and has higher adaptability.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic structural view of the first mold of the present invention;
FIG. 4 is a schematic view of the first mold of the present invention in partial cross-section;
FIG. 5 is a schematic cross-sectional view of the base of the present invention;
fig. 6 is a schematic cross-sectional view of a giant dog of the spud of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1 to 6, a central air-conditioning alloy connecting pipe fitting processing mold comprises a base 1, a first mold 2 and a second mold 3, wherein the first mold 2 is fixedly connected to the base 1, a semicircular first groove 21 is formed in one side of the first mold 2, a plurality of telescopic grooves 22 are symmetrically formed in the first groove 21, a plurality of spring telescopic rods 23 are symmetrically and fixedly connected to the telescopic grooves 22, telescopic walls 24 are fixedly connected to output ends of the spring telescopic rods 23, the telescopic walls 24 are both arc-shaped structures, both sides of the telescopic walls 24 are both inclined structures and are symmetrically arranged with the telescopic grooves 22, a sliding groove 11 is formed in the base 1, a sliding block 12 is inserted in the sliding groove 11, the top of the sliding block 12 is fixedly connected with the bottom of the second mold 3, the second mold 3 is symmetrically arranged with the first mold 2, and a second groove 31 is formed in one side of the second mold 3 corresponding to the first mold 2, the second groove 31 and the first groove 21 are symmetrically arranged, the second groove 31 and the first groove 21 are consistent in structure, the first groove 2 is matched with the second groove 3 to place and fix a pipe fitting, the telescopic groove 22 is matched with the spring telescopic rod 23 to stretch the telescopic wall 24, the telescopic wall 24 can press the outer wall of the pipe fitting when the pipe fitting is flared, the pipe fitting is prevented from being broken when the pipe fitting is flared, the sliding groove 11 is matched with the sliding block 12 to enable the second die 3 to move on the base 1, and the second die 3 is opened and closed with the first die 2 through movement;
pneumatic cylinder 4 of symmetry fixedly connected with in mould 2, the output fixedly connected with expansion bracket 41 of pneumatic cylinder 4, a plurality of inflation pieces 42 of the bottom symmetry fixedly connected with of expansion bracket 41, inflation piece 42 is circular-arc structure and leanin, inflation piece 42 sets up with flexible wall 24 symmetry, the bottom diameter of inflation piece 42 all is less than the internal diameter of flexible wall 24, pneumatic cylinder 5 No. two of one side fixedly connected with of base 1, the output fixedly connected with flaring terrace die 51 of pneumatic cylinder 5 No. two, flaring terrace die 51 sets up with inflation piece 42 symmetry, the external diameter of terrace die flaring 51 is greater than the internal diameter of flexible wall 24, pneumatic cylinder 4 is used for lift expansion bracket 41, inflation piece 42 cooperation flaring terrace die 51 can carry out the flaring to the pipe fitting, pneumatic cylinder 5 No. two is used for lift flaring terrace die 51, the inflation piece 42 that the tilting set up can make inflation piece 42 return be convenient for take out after the flaring.
The last symmetry of expansion bracket 41 has seted up the screw thread, and equal threaded connection has adjusting nut 44 on the expansion bracket 41, all has carved with the graduation apparatus on the expansion bracket 41, and the degree of depth of flaring can be adjusted to the graduation apparatus on the adjusting nut 44 cooperation expansion bracket.
The symmetry is inserted on base 1 and is equipped with slide bar 13 and threaded rod 14, slide bar 13 all runs through No. two moulds 3 with threaded rod 14 and inserts the one side of establishing No. 2 mould, one side fixedly connected with rotating electrical machines 6 of base 1, the fixed connection of output of rotating electrical machines 6 is in the one end of threaded rod 14, slide bar 13 cooperation threaded rod 14 can realize that No. two moulds 3 move on base 1 and cooperate No. one mould 2 to form and open and shut, rotating electrical machines 6 are used for realizing the rotation of threaded rod 14.
No. two mould 3 is last and be located No. two bottom fixed connection spud pile 32 of recess 31, symmetry fixedly connected with elastic frame 33 on the spud pile 32, all inserts on elastic frame 33 and is equipped with gyro wheel 34, and spud pile 32 cooperation elastic frame 33 and gyro wheel 34 are used for fixing the pipe fitting, separates the pipe fitting from a mould 2 after the pipe fitting flaring simultaneously, conveniently takes out.
The rubber pad 241 is fixedly connected to the inner side of the telescopic wall 24, and the rubber pad 241 can improve the fixing effect on the pipe fittings and prevent the pipe fittings from deviating during flaring.
The bottom of the flaring punch 51 is of a conical structure, and the bottom of the flaring punch 51 is conical so that the flaring punch 51 can be inserted into the expansion block 42 conveniently.
When in use:
the pipe fitting that will carry out the flaring is put into No. two recess 31, utilize elastic frame 33 and gyro wheel 34 to fix the pipe fitting, operation rotating electrical machines 6 is closed No. two moulds 3 and a mould 2, telescopic wall 24 in a recess 21 and No. two recesses 31 wraps up and fixes the pipe fitting, the degree of depth that flares as required rotates adjusting nut 44, operation hydraulic cylinder 4 drives expansion bracket 41 and descends, insert inflation piece 42 in the pipe fitting, operation No. two hydraulic cylinders drive flaring terrace die 51 descend and insert in telescopic bracket 41, make inflation piece 42 expand outward, the inner wall that extrudees the pipe fitting outwards expands when inflation piece 42 expands outwards, reach the mesh of flaring, when the inner wall of pipe fitting outwards expands, telescopic wall 24 cooperates spring telescopic link 23 to extrude the outer wall of pipe fitting, the pipe fitting produces the fracture when having avoided expanding.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a central air conditioning alloy connects pipe fitting mold processing, includes base (1), a mould (2) and No. two moulds (3), its characterized in that: the first mold (2) is fixedly connected to the base (1), one side of the first mold (2) is provided with a semicircular first groove (21), the first groove (21) is internally and symmetrically provided with a plurality of telescopic grooves (22), the telescopic grooves (22) are internally and symmetrically and fixedly connected with a plurality of spring telescopic rods (23), the output ends of the spring telescopic rods (23) are fixedly connected with telescopic walls (24), the telescopic walls (24) are both arc-shaped structures, both sides of the telescopic walls (24) are both inclined structures and are symmetrically arranged with the telescopic grooves (22), the base (1) is provided with a sliding groove (11), a sliding block (12) is inserted into the sliding groove (11), the top of the sliding block (12) is fixedly connected with the bottom of the second mold (3), and the second mold (3) is symmetrically arranged with the first mold (2), a second groove (31) is formed in one side, corresponding to the first mold (2), of the second mold (3), the second groove (31) and the first groove (21) are symmetrically arranged, and the structures of the second groove (31) and the first groove (21) are consistent;
no. one pneumatic cylinder (4) of symmetry fixedly connected with in mould (2), output fixedly connected with expansion bracket (41) of a pneumatic cylinder (4), a plurality of inflation pieces (42) of bottom symmetry fixedly connected with of expansion bracket (41), inflation piece (42) are circular-arc structure and leanin, inflation piece (42) with flexible wall (24) symmetry sets up, the bottom diameter of inflation piece (42) all is less than the internal diameter of flexible wall (24), pneumatic cylinder (5) No. two of one side fixedly connected with of base (1), the output fixedly connected with flaring terrace die (51) of No. two pneumatic cylinder (5), flaring terrace die (51) with inflation piece (42) symmetry sets up, the external diameter of flaring terrace die (51) is greater than the internal diameter of flexible wall (24).
2. The central air-conditioning alloy connecting pipe fitting processing die as claimed in claim 1, wherein: the telescopic frame (41) on the symmetry seted up the screw thread, equal threaded connection has adjusting nut (44) on telescopic frame (41), all the portrayal has the graduation apparatus on telescopic frame (41).
3. The central air-conditioning alloy connecting pipe fitting processing die as claimed in claim 1, wherein: base (1) on the symmetry insert and be equipped with slide bar (13) and threaded rod (14), slide bar (13) with threaded rod (14) all run through No. two mould (3) are inserted and are established one side of a mould (2), one side fixedly connected with rotating electrical machines (6) of base (1), the fixed connection of output of rotating electrical machines (6) is in the one end of threaded rod (14).
4. The central air-conditioning alloy connecting pipe fitting processing die as claimed in claim 1, wherein: no. two mould (3) on and be located bottom fixed connection spud pile (32) of No. two recess (31), symmetry fixedly connected with elastic frame (33) on spud pile (32), all insert on elastic frame (33) and be equipped with gyro wheel (34).
5. The central air-conditioning alloy connecting pipe fitting processing die as claimed in claim 1, wherein: the inner sides of the telescopic walls (24) are fixedly connected with rubber pads (241).
6. The central air-conditioning alloy connecting pipe fitting processing die as claimed in claim 1, wherein: the bottom of the flaring male die (51) is of a conical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010204265.9A CN111283105B (en) | 2020-03-21 | 2020-03-21 | Central air conditioning alloy connecting pipe fitting processing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010204265.9A CN111283105B (en) | 2020-03-21 | 2020-03-21 | Central air conditioning alloy connecting pipe fitting processing die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111283105A true CN111283105A (en) | 2020-06-16 |
| CN111283105B CN111283105B (en) | 2020-12-01 |
Family
ID=71020791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010204265.9A Active CN111283105B (en) | 2020-03-21 | 2020-03-21 | Central air conditioning alloy connecting pipe fitting processing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111283105B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318013A (en) * | 2020-10-17 | 2021-02-05 | 杭州醉夕风科技有限公司 | Air conditioner steel pipe welding machine |
| CN113351742A (en) * | 2021-08-09 | 2021-09-07 | 南通雨奇金属制品有限公司 | Pipe expanding device for bicycle handlebar production |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203155858U (en) * | 2013-01-27 | 2013-08-28 | 宁波奥克斯空调有限公司 | Expansion pipe expanding device for copper pipe in air conditioner heat exchanger |
| KR20140025688A (en) * | 2012-08-22 | 2014-03-05 | 영광토브 주식회사 | Tube end expanding device |
| CN203900290U (en) * | 2014-05-30 | 2014-10-29 | 西京学院 | Manual expanding machine for hydraulic pipe of micro plane |
| CN104588520A (en) * | 2014-12-17 | 2015-05-06 | 杜玉华 | Steel pipe installing and expanding equipment with high-temperature heating and remodeling functions |
| CN106180437A (en) * | 2016-08-30 | 2016-12-07 | 安徽省中阳管业有限公司 | A kind of punching type flaring die |
| US20170320116A1 (en) * | 2014-12-26 | 2017-11-09 | Nippon Steel & Sumitomo Metal Corporation | Method of manufacturing flaring-processed metal pipe |
| CN208810964U (en) * | 2018-09-19 | 2019-05-03 | 合肥华微机械制造有限公司 | A kind of aluminum pipe automatic expanding machine |
| CN209288126U (en) * | 2018-11-08 | 2019-08-23 | 舟山市质量技术监督检测研究院 | A kind of metal tube flaring dimension measuring device |
| CN209465578U (en) * | 2018-11-06 | 2019-10-08 | 天津市双盈盛制管有限公司 | A kind of expanding device of metal tube port |
| CN210059585U (en) * | 2019-05-08 | 2020-02-14 | 新昌县开铭制冷配件有限公司 | Flaring processing equipment is used in production of air conditioner connecting pipe |
-
2020
- 2020-03-21 CN CN202010204265.9A patent/CN111283105B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140025688A (en) * | 2012-08-22 | 2014-03-05 | 영광토브 주식회사 | Tube end expanding device |
| CN203155858U (en) * | 2013-01-27 | 2013-08-28 | 宁波奥克斯空调有限公司 | Expansion pipe expanding device for copper pipe in air conditioner heat exchanger |
| CN203900290U (en) * | 2014-05-30 | 2014-10-29 | 西京学院 | Manual expanding machine for hydraulic pipe of micro plane |
| CN104588520A (en) * | 2014-12-17 | 2015-05-06 | 杜玉华 | Steel pipe installing and expanding equipment with high-temperature heating and remodeling functions |
| US20170320116A1 (en) * | 2014-12-26 | 2017-11-09 | Nippon Steel & Sumitomo Metal Corporation | Method of manufacturing flaring-processed metal pipe |
| CN106180437A (en) * | 2016-08-30 | 2016-12-07 | 安徽省中阳管业有限公司 | A kind of punching type flaring die |
| CN208810964U (en) * | 2018-09-19 | 2019-05-03 | 合肥华微机械制造有限公司 | A kind of aluminum pipe automatic expanding machine |
| CN209465578U (en) * | 2018-11-06 | 2019-10-08 | 天津市双盈盛制管有限公司 | A kind of expanding device of metal tube port |
| CN209288126U (en) * | 2018-11-08 | 2019-08-23 | 舟山市质量技术监督检测研究院 | A kind of metal tube flaring dimension measuring device |
| CN210059585U (en) * | 2019-05-08 | 2020-02-14 | 新昌县开铭制冷配件有限公司 | Flaring processing equipment is used in production of air conditioner connecting pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318013A (en) * | 2020-10-17 | 2021-02-05 | 杭州醉夕风科技有限公司 | Air conditioner steel pipe welding machine |
| CN113351742A (en) * | 2021-08-09 | 2021-09-07 | 南通雨奇金属制品有限公司 | Pipe expanding device for bicycle handlebar production |
| CN113351742B (en) * | 2021-08-09 | 2021-10-01 | 南通雨奇金属制品有限公司 | Pipe expanding device for bicycle handlebar production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111283105B (en) | 2020-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111283105B (en) | Central air conditioning alloy connecting pipe fitting processing die | |
| CN101497096B (en) | Device for processing reducer pipe fitting with big section difference and method for shaping the same | |
| CN105013854B (en) | Device for machining outer pipes of pistons | |
| CN103660277A (en) | Deforming device of lining pipe | |
| CN207787448U (en) | A kind of cooperative mechanical is quick-moving to change combination cold punching die device | |
| CN207195908U (en) | A kind of crimping device for pipeline buckle press joint | |
| CN213002706U (en) | Pneumatic clamp for machining ejector pin of mold | |
| CN211588275U (en) | Pipe expander | |
| CN100999133B (en) | Squeezing cold shaping machine for vehicle oil pipe middle part | |
| CN116809754A (en) | Bent pipe type clamping and pressing pipe forming device and application method thereof | |
| CN203854198U (en) | Lining tube deformation device | |
| CN106181192B (en) | It is a kind of to be used to weld oil filling pipe, the weld jig for nut of draining the oil on tank body of oil tank | |
| CN206689272U (en) | Internal high pressure forming die | |
| CN207430998U (en) | A kind of machine for shrinking for making pipe annular protrusion | |
| CN202377348U (en) | Three-way forming equipment | |
| CN213613575U (en) | Water pressure pipe expanding device convenient for die changing | |
| CN207057468U (en) | A kind of automatic continuous pipe-expanding machine | |
| CN112172102A (en) | PVC-O tubular product bellmouth inflation shaping mandrel | |
| CN207914335U (en) | A kind of steel pipe drawing machine being conveniently adjusted specification | |
| CN219786153U (en) | Cold-pushing automatic forming machine for seamless elbow machining | |
| CN110900985A (en) | Arc core-pulling die for forming elbow pipe fitting | |
| CN216679602U (en) | Evaporator tube large step machining tool | |
| CN108819082A (en) | A kind of Anti-leakage type extrusion die structure | |
| CN219043616U (en) | Precise expansion and contraction device for connection of lock rings | |
| CN109228290A (en) | A kind of highly-safe hard PVC pipe expanding 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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201112 Address after: Qin Nan Zhen Industrial Park in Jiangsu Province, Yancheng City 224000 district (Dongsheng Road No. 6) Applicant after: JIANGSU HUOLONG ELECTRIC Co.,Ltd. Address before: 230031 science and Technology Park, Hefei National University, No. 602, Huangshan Road, Shushan District, Hefei City, Anhui Province Applicant before: Chen Shouquan |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 40030806 Country of ref document: HK |