CN213592655U - Butterfly valve rubber ring sand blasting equipment - Google Patents
Butterfly valve rubber ring sand blasting equipment Download PDFInfo
- Publication number
- CN213592655U CN213592655U CN202022321369.6U CN202022321369U CN213592655U CN 213592655 U CN213592655 U CN 213592655U CN 202022321369 U CN202022321369 U CN 202022321369U CN 213592655 U CN213592655 U CN 213592655U
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- China
- Prior art keywords
- sand
- box
- sand blasting
- blasting
- rubber ring
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- 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.)
- Expired - Fee Related
Links
- 238000005488 sandblasting Methods 0.000 title claims abstract description 120
- 244000035744 Hura crepitans Species 0.000 claims abstract description 13
- 239000004576 sand Substances 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 29
- 239000000428 dust Substances 0.000 claims description 26
- 239000012535 impurity Substances 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 11
- 239000010813 municipal solid waste Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims 2
- 241000220317 Rosa Species 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of production and processing, in particular to a butterfly valve rubber ring sand blasting device which can improve the spraying effect and efficiency by setting; the sand blasting machine comprises a support frame, a sand box and a sand blasting main body, wherein the bottom end of the sand box is fixedly connected with the top end of the support frame, and a connecting pipe is arranged at the bottom end of the sand box; still include the base, four group's pillars, the sandblast case, the cylinder, the telescopic link, the fixed block, the mounting panel, the apparatus further comprises a rotating shaft, the fixed roll, the chamber door, and a support, the rose box, the fixed plate, first filter screen, second filter screen and backup pad, base top and support frame bottom fixed connection, pillar top and base bottom fixed connection, sandblast main part bottom and base top fixed connection, sandblast case bottom and base top fixed connection, the sandblast pipe passes the sandblast case, cylinder fixed mounting is at the sandblast case left end, the telescopic link passes the sandblast case, the telescopic link left end is connected with the output of cylinder, telescopic link right-hand member and fixed block left end fixed connection, fixed block right-hand member and mounting.
Description
Technical Field
The utility model relates to a technical field of production and processing especially relates to a butterfly valve rubber ring sand blasting equipment.
Background
As is well known, a butterfly valve rubber ring sand blasting device is an auxiliary device for sand blasting of butterfly valve rubber rings in the production and processing processes, and is widely used in the field of production and processing; the existing butterfly valve rubber ring sand blasting equipment comprises a support frame, a sand material box and a sand blasting main body, wherein the bottom end of the sand material box is fixedly connected with the top end of the support frame; when the existing butterfly valve rubber ring sand blasting equipment is used, firstly, a spray gun is aligned to a rubber ring, a valve of a connecting pipe at the bottom end of a sand material box is opened, sand materials in the sand material box enter a sand blasting main body, the sand blasting main body is started, the sand materials of the sand blasting main body enter a sand blasting pipe and are sprayed out of the rubber ring through the spray gun, and the rubber ring is subjected to sand blasting and polishing; the rubber ring is inconvenient to place, inconvenient to operate and low in efficiency when the conventional butterfly valve rubber ring sand blasting equipment is used.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a through the setting, can improve the butterfly valve rubber ring sand blasting equipment of the effect and the efficiency of spraying.
The utility model discloses a butterfly valve rubber ring sand blasting equipment, including support frame, sand material case and sandblast main part, sand material case bottom and support frame top fixed connection, sand material case bottom is equipped with the connecting pipe, and the connecting pipe passes the support frame and communicates with sandblast main part top, and the sandblast main part is located the support frame below, and the output of sandblast main part is equipped with the sand blasting pipe, and the output of sand blasting pipe is equipped with the spray gun; the sand blasting machine also comprises a base, four groups of pillars, a sand blasting box, a cylinder, a telescopic rod, a fixed block, a mounting plate, a rotating shaft, a fixed roller, a box door, a bracket, a filter box, a fixed plate, a first filter screen, a second filter screen and a support plate, wherein the top end of the base is fixedly connected with the bottom end of the support frame, the top end of the pillar is fixedly connected with the bottom end of the base, the bottom end of a sand blasting main body is fixedly connected with the top end of the base, the bottom end of the sand blasting box is fixedly connected with the top end of the base, a sand blasting pipe penetrates through the sand blasting box, the cylinder is fixedly mounted at the left end of the sand blasting box, the telescopic rod penetrates through the sand blasting box, the left end of the telescopic rod is connected with the output end of the cylinder, the right end of the telescopic rod is fixedly, the support top and the sandblast case top fixed connection, the spray gun passes the support, the sandblast case bottom is equipped with out the sand pipe, go out the sand pipe and pass the base and communicate with the rose box top, rose box bottom and fixed plate top fixed connection, fixed plate fixed mounting is between four group's pillars, first filter screen slope is installed in the rose box, the rose box right-hand member is equipped with the trash removal pipe, the slope of second filter screen is installed in the rose box, the second filter screen is located first filter screen below, backup pad top and second filter screen bottom fixed connection, backup pad bottom and rose box bottom fixed connection, the rose box bottom is equipped with the dust exhaust pipe, the rose box left end is equipped with the sand exhaust pipe.
The utility model discloses a butterfly valve rubber ring sand blasting equipment still includes pull rod, scraper blade and gag lever post, and the pull rod passes the rose box right-hand member, pull rod left end and scraper blade fixed connection, scraper blade bottom and rose box bottom contact, gag lever post fixed mounting is in the rose box, and the scraper blade top is equipped with the sliding sleeve, and the gag lever post passes the sliding sleeve.
The utility model discloses a butterfly valve rubber ring sand blasting equipment still includes oscillation device, and oscillation device fixed mounting is in sand workbin bottom.
The utility model discloses a butterfly valve rubber ring sand blasting equipment still includes the sloping block, and sloping block fixed mounting is bottom in the sandblast case.
The utility model discloses a butterfly valve rubber ring sand blasting equipment still includes two sets of installation pieces and two sets of fixing bolt, and installation piece fixed mounting is in the pivot, and fixing bolt passes installation piece and spiral shell dress on the mounting panel.
The utility model discloses a butterfly valve rubber ring sand blasting equipment still includes the observation window, is equipped with the opening on the chamber door, and observation window fixed mounting is at the opening part.
The utility model discloses a butterfly valve rubber ring sand blasting equipment still includes miscellaneous case and dust collection box of collection, and miscellaneous case bottom of collection and fixed plate top fixed connection, collection miscellaneous case and trash extraction pipe intercommunication, dust collection box and dust extraction pipe intercommunication.
The utility model discloses a butterfly valve rubber ring sand blasting equipment still includes the material level pipe, and the sand box front end is equipped with the opening, and material level pipe fixed mounting is at the opening part.
Compared with the prior art, the beneficial effects of the utility model are that: firstly, a box door is opened, a cylinder is started, a telescopic rod is driven to stretch left and right, a fixing block is driven to move left and right, a fixing roller is driven to move right, a sand blasting box is extended out, a rubber ring is placed in a groove of the fixing roller, the stability of the rubber ring can be improved, then the telescopic rod is contracted, the fixing roller enters the sand blasting box, sand in the sand blasting box enters a sand blasting main body, the sand blasting main body is started, the sand enters a sand blasting pipe and is sprayed to the rubber ring through a spray gun, sand blasting and polishing are carried out on the rubber ring, if the angle of the rubber ring needs to be adjusted in the sand blasting process, the fixing block is started, a mounting plate is driven to rotate by transmission, a rotating shaft and the fixing roller are driven to rotate, the angle of the rubber ring can be adjusted, the convenience is improved, the sprayed sand enters a filter box through a sand outlet pipe, falls to the top end of a first filter screen, larger impurities are, and roll to the backup pad left side, discharge through the sand discharge pipe, recoverable recycling, less dust impurity falls the rose box bottom through the second filter screen to discharge through the dust discharge pipe can.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the right side view of the connection of the door and the sandblasting case;
FIG. 3 is a schematic view showing the internal connection of the filtration tank;
FIG. 4 is an enlarged schematic view of a portion A of FIG. 1;
in the drawings, the reference numbers: 1. a support frame; 2. a sand box; 3. a sandblasting main body; 4. a sand blasting pipe; 5. A spray gun; 6. a base; 7. a pillar; 8. a sand blasting box; 9. a cylinder; 10. a telescopic rod; 11. A fixed block; 12. mounting a plate; 13. a rotating shaft; 14. a fixed roller; 15. a box door; 16. a support; 17. a sand outlet pipe; 18. a filter box; 19. a fixing plate; 20. a first filter screen; 21. a trash removal pipe; 22. a second filter screen; 23. a support plate; 24. a dust exhaust pipe; 25. a sand discharge pipe; 26. A pull rod; 27. a squeegee; 28. a limiting rod; 29. an oscillation device; 30. a sloping block; 31. mounting blocks; 32. fixing the bolt; 33. an observation window; 34. a trash collection box; 35. a dust collection box; 36. a material level pipe.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the utility model discloses a butterfly valve rubber ring sand blasting device, which comprises a support frame 1, a sand box 2 and a sand blasting main body 3, wherein the bottom end of the sand box 2 is fixedly connected with the top end of the support frame 1, the bottom end of the sand box 2 is provided with a connecting pipe, the connecting pipe passes through the support frame 1 and is communicated with the top end of the sand blasting main body 3, the sand blasting main body 3 is positioned below the support frame 1, the output end of the sand blasting main body 3 is provided with a sand blasting pipe 4, and the output end of the sand blasting pipe; the sand blasting machine also comprises a base 6, four groups of struts 7, a sand blasting box 8, a cylinder 9, a telescopic rod 10, a fixed block 11, a mounting plate 12, a rotating shaft 13, a fixed roller 14, a box door 15, a support 16, a filter box 18, a fixed plate 19, a first filter screen 20, a second filter screen 22 and a support plate 23, wherein the top end of the base 6 is fixedly connected with the bottom end of the support frame 1, the top end of the strut 7 is fixedly connected with the bottom end of the base 6, the bottom end of a sand blasting main body 3 is fixedly connected with the top end of the base 6, the bottom end of the sand blasting box 8 is fixedly connected with the top end of the base 6, a sand blasting pipe 4 penetrates through the sand blasting box 8, the cylinder 9 is fixedly mounted at the left end of the sand blasting box 8, the telescopic rod 10 penetrates through the sand blasting box 8, the left end of the telescopic rod, the right end of a rotating shaft 13 is fixedly connected with the left end of a fixed roller 14, the fixed roller 14 is provided with a groove, the right end of a sand-blasting box 8 is provided with an opening, a box door 15 is arranged at the right end of the sand-blasting box 8, the top end of a support 16 is fixedly connected with the top end of the sand-blasting box 8, a spray gun 5 penetrates through the support 16, the bottom end of the sand-blasting box 8 is provided with a sand outlet pipe 17, the sand outlet pipe 17 penetrates through a base 6 and is communicated with the top end of a filter box 18, the bottom end of the filter box 18 is fixedly connected with the top end of a fixed plate 19, the fixed plate 19 is fixedly arranged among four groups of supports 7, a first filter screen 20 is obliquely arranged in the filter box 18, the right end of the filter box 18 is provided with an impurity discharge pipe 21, a second filter screen 22 is obliquely arranged in the filter box 18, the second filter screen, the left end of the filter tank 18 is provided with a sand discharge pipe 25; firstly, a box door 15 is opened, an air cylinder 9 is started, a telescopic rod 10 is driven to stretch left and right, a fixed block 11 is driven to move left and right, a fixed roller 14 moves right, a sand blasting box 8 extends out, a rubber ring is placed in a groove of the fixed roller 14, the stability of the rubber ring can be improved, then the telescopic rod 10 is contracted, the fixed roller 14 enters the sand blasting box 8, sand in a sand blasting box 2 enters a sand blasting main body 3, the sand blasting main body 3 is started, the sand enters a sand blasting pipe 4 and is sprayed to the rubber ring through a spray gun 5, sand blasting and polishing are carried out on the rubber ring, in the sand blasting process, if the angle of the rubber ring needs to be adjusted, the fixed block 11 is started, a mounting plate 12 is driven to rotate, a rotating shaft 13 and the fixed roller 14 are driven to rotate, the angle of the rubber ring can be adjusted, the convenience is improved, the sprayed sand enters a filter box 18 through, great impurity is intercepted to discharge through arranging miscellaneous pipe 21, the sand material passes first filter screen 20 and falls on second filter screen 22, and rolls and fall backup pad 23 left side, discharges through sand discharge pipe 25, and recoverable recycle, less dust impurity falls the rose box 18 bottom through second filter screen 22, and discharge can through dust discharge pipe 24.
The utility model discloses a butterfly valve rubber ring sand blasting equipment, still include pull rod 26, scraper blade 27 and gag lever post 28, pull rod 26 passes the right-hand member of filter tank 18, and the left end of pull rod 26 and scraper blade 27 fixed connection, the contact of scraper blade 27 bottom and filter tank 18 bottom, gag lever post 28 fixed mounting in filter tank 18, and the scraper blade 27 top is equipped with the sliding sleeve, and gag lever post 28 passes the sliding sleeve; through setting up, take pull rod 26 out to the right, can drive scraper blade 27 and move to the right to scrape out the dust impurity of rose box 18 bottom right, and discharge through dust exhaust pipe 24, can prevent that the dust from piling up, improve the cleanliness of rose box 18, gag lever post 28 can play the effect of support to scraper blade 27's removal, improves scraper blade 27's stability.
The utility model discloses a butterfly valve rubber ring sand blasting device, which also comprises an oscillating device 29, wherein the oscillating device 29 is fixedly arranged at the bottom of the sand box 2; through setting up, start oscillation device 29 can vibrate sand material case 2, and the sand material in the sand material case 2 of being convenient for is discharged, improves the convenience.
The utility model discloses a butterfly valve rubber ring sand blasting device, which also comprises an inclined block 30, wherein the inclined block 30 is fixedly arranged at the bottom in the sand blasting box 8; through setting up, the sand material of being convenient for is discharged, improves the convenience.
The utility model discloses a butterfly valve rubber ring sand blasting equipment, still include two sets of installation pieces 31 and two sets of fixing bolts 32, installation piece 31 is fixedly installed on pivot 13, fixing bolt 32 passes installation piece 31 and the spiral shell is installed on mounting panel 12; by arranging and tightening the fixing bolt 32, the connection between the rotating shaft 13 and the mounting plate 12 can be strengthened, the fixing bolt 32 is loosened, the rotating shaft 13 and the fixing roller 14 can be replaced conveniently, and the convenience is improved.
The utility model discloses a butterfly valve rubber ring sand blasting device, which also comprises an observation window 33, wherein an opening is arranged on the box door 15, and the observation window 33 is fixedly arranged at the opening; through setting up observation window 33, be convenient for observe the condition of sandblast in the sandblast case 8, improve the convenience.
The utility model discloses a butterfly valve rubber ring sand blasting equipment, also include collecting box 34 and dust collection box 35, collecting box 34 bottom and fixed connection of 19 tops of dead plate, collecting box 34 and arrange miscellaneous pipe 21 intercommunication, dust collection box 35 and arrange the dust pipe 24 intercommunication; through setting up, be convenient for collect various impurity dust, unified processing improves the convenience.
The utility model discloses a butterfly valve rubber ring sand blasting device, which also comprises a material level pipe 36, wherein the front end of the sand material box 2 is provided with an opening, and the material level pipe 36 is fixedly arranged at the opening; through setting up material level pipe 36, be convenient for observe the in service behavior of sand material in sand workbin 2, improve the convenience.
The utility model discloses a butterfly valve rubber ring sand blasting equipment, it is at work, at first open the chamber door, start the cylinder, drive the telescopic link and stretch out and draw back from side to side, drive the fixed block and move from side to side, make the fixed roll move to the right, and stretch out the sand blasting box, later snare the rubber ring in the recess of fixed roll, then shrink the telescopic link, make the fixed roll get back to the sand blasting box, later the sand material in the sand blasting box gets into the sand blasting main part, start the oscillation device, be convenient for the sand material to discharge, start the sand blasting main part simultaneously, the sand material gets into the sand blasting pipe, and spout to the rubber ring through the spray gun, sand blasting and polishing to the rubber ring, in the sand blasting process, if need to adjust the angle to the rubber ring, then start the fixed block, the transmission drives the mounting panel and rotates, drive pivot and fixed roll rotation simultaneously, the angle of rubber ring has been adjusted can, simultaneously, the impurity of great volume is intercepted to in going into the collection miscellaneous case through arranging miscellaneous pipe row, the sand material passes first filter screen and falls on the second filter screen, and roll and fall the backup pad left side, later discharge through arranging the sand pipe, but recycle, the dust impurity of little volume falls the rose box bottom end through the second filter screen, then pull rod is pulled right, drive the scraper blade and remove right, and strike off the dust impurity of rose box bottom end in can through arranging the dirt pipe.
The installation mode, the connection mode or the setting mode of the sand blasting equipment for the butterfly valve rubber ring of the utility model are common mechanical modes, and the sand blasting equipment can be implemented as long as the beneficial effects can be achieved; the utility model discloses a butterfly valve rubber ring sand blasting equipment's sandblast main part, cylinder, fixed block and oscillation device are purchase on the market, and this technical staff in the industry only need according to its subsidiary instructions install and operate can.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A butterfly valve rubber ring sand blasting device comprises a support frame (1), a sand box (2) and a sand blasting main body (3), wherein the bottom end of the sand box (2) is fixedly connected with the top end of the support frame (1), a connecting pipe is arranged at the bottom end of the sand box (2), the connecting pipe penetrates through the support frame (1) and is communicated with the top end of the sand blasting main body (3), the sand blasting main body (3) is positioned below the support frame (1), a sand blasting pipe (4) is arranged at the output end of the sand blasting main body (3), and a spray gun (5) is arranged at the output end of the sand blasting pipe (; it is characterized by also comprising a base (6), four groups of pillars (7), a sand-blasting box (8), a cylinder (9), a telescopic rod (10), a fixed block (11), a mounting plate (12), a rotating shaft (13), a fixed roller (14), a box door (15), a bracket (16), a filter box (18), a fixed plate (19), a first filter screen (20), a second filter screen (22) and a support plate (23), wherein the top end of the base (6) is fixedly connected with the bottom end of the support frame (1), the top end of the pillars (7) is fixedly connected with the bottom end of the base (6), the bottom end of the sand-blasting main body (3) is fixedly connected with the top end of the base (6), the bottom end of the sand-blasting box (8) is fixedly connected with the top end of the base (6), a sand-blasting pipe (4) penetrates through the sand-blasting box (8), the cylinder (9) is fixedly mounted at the left end of the sand-blasting box (, the right end of a telescopic rod (10) is fixedly connected with the left end of a fixed block (11), the right end of the fixed block (11) is fixedly connected with the left end of a mounting plate (12), the right end of the mounting plate (12) is connected with the left end of a rotating shaft (13), the right end of the rotating shaft (13) is fixedly connected with the left end of a fixed roller (14), a groove is arranged on the fixed roller (14), the right end of a sand-blasting box (8) is provided with an opening, a box door (15) is arranged at the right end of the sand-blasting box (8), the top end of a support (16) is fixedly connected with the top end of the sand-blasting box (8), a spray gun (5) penetrates through the support (16), the bottom end of the sand-blasting box (8) is provided with a sand outlet pipe (17), the sand outlet pipe (17) penetrates through a base (6) and is communicated with the top end of a filter box (18), the bottom end of the, the right end of the filter box (18) is provided with a trash discharge pipe (21), the second filter screen (22) is obliquely installed in the filter box (18), the second filter screen (22) is located below the first filter screen (20), the top end of the support plate (23) is fixedly connected with the bottom end of the second filter screen (22), the bottom end of the support plate (23) is fixedly connected with the bottom end of the filter box (18), the bottom end of the filter box (18) is provided with a dust discharge pipe (24), and the left end of the filter box (18) is provided with a sand discharge pipe (25).
2. The butterfly valve rubber ring sand blasting equipment as claimed in claim 1, further comprising a pull rod (26), a scraper (27) and a limiting rod (28), wherein the pull rod (26) penetrates through the right end of the filter box (18), the left end of the pull rod (26) is fixedly connected with the scraper (27), the bottom end of the scraper (27) is in contact with the bottom end of the filter box (18), the limiting rod (28) is fixedly installed in the filter box (18), the top end of the scraper (27) is provided with a sliding sleeve, and the limiting rod (28) penetrates through the sliding sleeve.
3. The butterfly valve rubber ring sand blasting equipment according to claim 2, characterized by further comprising an oscillating device (29), wherein the oscillating device (29) is fixedly arranged at the bottom of the sand box (2).
4. The butterfly valve rubber ring sand blasting device of claim 3, further comprising a sloping block (30), wherein the sloping block (30) is fixedly arranged at the bottom inside the sand blasting box (8).
5. The butterfly valve rubber ring sand blasting equipment according to claim 4, further comprising two sets of mounting blocks (31) and two sets of fixing bolts (32), wherein the mounting blocks (31) are fixedly mounted on the rotating shaft (13), and the fixing bolts (32) penetrate through the mounting blocks (31) and are screwed on the mounting plate (12).
6. The butterfly valve rubber ring sand blasting equipment according to claim 5, further comprising an observation window (33), wherein the box door (15) is provided with an opening, and the observation window (33) is fixedly arranged at the opening.
7. The butterfly valve rubber ring sand blasting equipment according to claim 6, further comprising a dust collecting box (34) and a dust collecting box (35), wherein the bottom end of the dust collecting box (34) is fixedly connected with the top end of the fixing plate (19), the dust collecting box (34) is communicated with the impurity discharging pipe (21), and the dust collecting box (35) is communicated with the dust discharging pipe (24).
8. The butterfly valve rubber ring sand blasting equipment as claimed in claim 7, further comprising a material level pipe (36), wherein the front end of the sand material box (2) is provided with an opening, and the material level pipe (36) is fixedly arranged at the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022321369.6U CN213592655U (en) | 2020-10-19 | 2020-10-19 | Butterfly valve rubber ring sand blasting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022321369.6U CN213592655U (en) | 2020-10-19 | 2020-10-19 | Butterfly valve rubber ring sand blasting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213592655U true CN213592655U (en) | 2021-07-02 |
Family
ID=76591205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022321369.6U Expired - Fee Related CN213592655U (en) | 2020-10-19 | 2020-10-19 | Butterfly valve rubber ring sand blasting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213592655U (en) |
-
2020
- 2020-10-19 CN CN202022321369.6U patent/CN213592655U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210702 |