CN214697601U - Stainless steel ventilation window convenient to maintain - Google Patents

Stainless steel ventilation window convenient to maintain Download PDF

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Publication number
CN214697601U
CN214697601U CN202022619219.3U CN202022619219U CN214697601U CN 214697601 U CN214697601 U CN 214697601U CN 202022619219 U CN202022619219 U CN 202022619219U CN 214697601 U CN214697601 U CN 214697601U
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fixedly connected
fixed
block
wall
sliding
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Chinese (zh)
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李澄希
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Guangzhou Chunjin Electromechanical Co ltd
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Guangzhou Chunjin Electromechanical Co ltd
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Abstract

The utility model relates to a stainless steel window technical field specifically is a stainless steel ventilation window convenient to maintain, including the glass device main part, glass device main part outer wall fixedly connected with glass connection frame, the all fixedly connected with rubber strip of glass connection frame edge, and the inboard top of rubber strip has all seted up the second fluting, the second fluting inboard is all inserted and is equipped with second fixed connection piece, and fixed connection second pull ring on the second fixed connection piece, and the inboard all fixed connection of second fixed connection piece is at the outside middle part of the fixed inserted block of third. The utility model discloses ensured the device in the use, met damage or inconvenient dismantlement and some problems of inconvenient installation and solved, improved the convenience that the device used, made the more perfect of device operation, need change belt cleaning device and obtained solving meetting the cleaning process, improved stainless steel ventilation window's integrality relatively.

Description

Stainless steel ventilation window convenient to maintain
Technical Field
The utility model relates to a ventilation window field specifically is a stainless steel ventilation window who conveniently maintains.
Background
Along with the development of the society, no matter at home or official working, the ventilation window is the indispensable device, and the ventilation of often windowing can keep indoor air fresh circulation, has sufficient oxygen in the fresh air, and indoor air circulation, the quantity of germ also can reduce, often windows and keeps the circulation of air, is favorable to discharging indoor dirty air, guarantees sufficient oxygen supply, and the convenient stainless steel ventilation window who maintains in the society at present satisfies people's demand basically, but still has some problems.
Traditional stainless steel ventilation window receives wearing and tearing easily under the environment that experiences the weather and sunshine and in the use, in case glass is broken, in case need look for the maintenance personal help and change, but because time or uncertain factor maintenance personal can in time not get on the door, so just loaded down with trivial details when changing, again because the window is stained with the dust easily under the condition of exposing the air for a long time, it is just inconvenient clean just at the cleaning in-process usually, consume the problem that the manpower is this also must be solved, it is comparatively loaded down with trivial details to operate when changing, thereby the inconvenience in clean in-process still influences the convenience of device in the use, consequently, need a convenient stainless steel ventilation window who maintains to solve above-mentioned problem urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stainless steel ventilation window of convenient maintenance to the operation is comparatively loaded down with trivial details when solving the change that proposes in the above-mentioned background art, the inconvenient operation in clean in addition, thereby influences the problem of the convenience of device in the use.
In order to achieve the above object, the utility model provides a following technical scheme: a stainless steel ventilation window convenient to maintain comprises a glass device main body, wherein the outer wall of the glass device main body is fixedly connected with a glass connecting frame, the corners of the glass connecting frame are fixedly connected with rubber strips, the top ends of the inner sides of the rubber strips are provided with second grooves, the inner sides of the second grooves are inserted with second fixed connecting blocks, the second fixed connecting blocks are fixedly connected with second pull rings, the inner sides of the second fixed connecting blocks are fixedly connected with the middle parts of the outer sides of third fixed inserting blocks, the inner sides of the third fixed inserting blocks are fixedly connected with first sliding blocks in the middle parts of the outer sides of the third fixed inserting blocks, the middle parts of the upper ends of the first sliding blocks are fixedly connected with third fixed connecting blocks, the first sliding blocks slide on the outer wall of a first sliding rod, the first sliding rods slide on the outer wall of the first sliding rod, and second springs are welded in the middle parts of the inner sides of the first sliding blocks, and one end of the second spring, which is far away from the first sliding block, is welded in the middle of the inner wall of the third groove, and the middle of the second spring is surrounded on the outer wall of the first sliding rod.
Preferably, first fluting has all been seted up to the middle part upper end in the second fixed connection block outside, and first fluting inboard all inserts and is equipped with first fixed inserted block, the outer wall that first fixed inserted block outside top all runs through the rubber strip extends to the inboard bottom middle part of first fixed connection block, the inboard bottom both sides of first fixed connection block have all welded first spring, first spring is kept away from the one end of first fixed connection block and is all welded on the outer wall of rubber strip, the first pull ring of first fixed connection block outside top middle part all fixedly connected with, and the cross-section of looking forward of first pull ring all is "the ring form".
Preferably, the glass device body is installed in the middle of the front end of the glass frame, ninth grooves are symmetrically formed in the middle of the two sides of the glass frame, a fourth slide bar is fixedly connected to the middle of the inner wall of each ninth groove, a third slide block is slidably connected to the outer wall of each fourth slide bar, a sixth groove is formed in the middle of the left side of each third slide block at the right end of the glass frame, a fifth fixed connecting block is fixedly connected to the middle of the inner wall of each sixth groove, the top end of the left side of each fifth fixed connecting block is inserted into the middle of the right side of each sixth fixed connecting block, the left side of each sixth fixed connecting block is fixedly connected to the top end of the right side of each third slide bar, the left side of each third slide bar is inserted into the middle of the inner side of each fixed connecting bar, the top ends of the left sides of the fixed connecting bars are fixedly connected to the top ends of the right sides of the cleaning brush blocks, fourth springs are welded around the outer walls of the third slide bars, and the right top ends of the fourth springs are welded to the middle of the left sides of the sixth fixed connecting blocks, and an eighth open groove is formed in the middle of the right side of the third sliding block at the left end, another fixed connecting rod is inserted into the inner side of the eighth open groove, and the end, far away from the eighth open groove, of the fixed connecting rod is fixedly connected to the top end of the left side of the cleaning brush block.
Preferably, it is two sets of fifth fluting has all been seted up to the inboard middle part lower extreme of third slider, and the fifth fluting inboard all inserts and be equipped with the fixed inserted block of second, the inboard bottom fixedly connected with fourth fixed connection block of the fixed inserted block of second, the all fixed connection in second slider top middle part in fourth fixed connection block bottom, the second slider all slides on the outer wall of second slide bar, the all fixed connection of second slide bar is in fourth inslot wall middle part, the fourth groove is seted up at the horizontal pole middle part, horizontal pole fixed connection is in the bottom both sides of glass connecting frame, second slider outside middle part has all welded the third spring, and the one end that the second slider was kept away from to the third spring all welds in fourth inslot wall middle part, third spring middle part encircles on the outer wall of second slide bar everywhere.
Preferably, the middle parts of the front ends of the two groups of fixed connecting rods are fixedly connected with pull handles, and the middle parts of the inner sides of the pull handles are provided with anti-skid grains.
Preferably, the middle part of the inner side of the eighth open groove is fixedly connected with a third fixed insertion block, the right top end of the third fixed insertion block is inserted into the inner side of a seventh open groove, and the seventh open groove is formed in the left top end of another fixed connecting rod.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the stainless steel ventilation window convenient for maintenance is provided with a first spring, a rubber strip, a first fixed inserting block, a first fixed connecting block, a first spring, a second groove, a second fixed connecting block, a third fixed inserting block, a first sliding block and a second spring, when the glass device main body needs to be replaced, at the moment, the first pull ring is firstly pulled outwards to drive the first fixed connecting block fixedly connected with the first pull ring, the first fixed inserting block fixedly connected with the first fixed connecting block leads the first springs welded at the two sides of the first fixed inserting block to be driven to be separated from the locking state with the middle part of the inner wall of the first open groove with the top end of the inner side of the first fixed inserting block under the action of elastic potential energy, and at the moment, the third fixed inserting block is pulled towards the right side, so that the first sliding block fixedly connected with the third fixed insertion block is driven by the elastic potential energy of the second spring to ensure that the second fixed connection block is separated from the locking state with the middle part of the inner wall of the second groove. The glass device main body can be replaced at the moment, and the glass device main body can be relatively and conveniently replaced through the structure, so that the problems of damage or inconvenience in disassembly and assembly in the use process of the device are solved, the convenience in use of the device is improved, and the operation of the device is more perfect;
2. the stainless steel ventilation window convenient for maintenance is provided with a fourth fixed connecting block, a second sliding block, a third spring, a fifth open groove, a second fixed inserting block, a third sliding rod, a fixed connecting rod and a seventh open groove, when a cleaning brush block needs to be detached, the fourth fixed connecting block is firstly pulled towards the right side at the moment, the second sliding block fixedly connected with the fourth fixed connecting block is driven to slide towards the right side, so that the second fixed inserting block is separated from the locking state with the inner wall of the fifth open groove under the action of the elastic potential energy of the third spring, the pull handle is pulled towards the right side at the moment, the fixed connecting rod fixedly connected with the pull handle is driven to move towards the right side under the action of the elastic potential energy of the fourth spring, meanwhile, the third sliding rod fixedly connected with the fixed connecting rod is also driven to move towards the right side, the top end of the left side of the fixed connecting rod is separated from the locking state with the seventh open groove at the moment, and the stainless steel ventilation window device can be optimized through the structure, the problem that the cleaning device needs to be replaced in the cleaning process is solved, and the integrity of the stainless steel ventilation window is relatively improved.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
fig. 2 is a schematic structural view of the present invention in a disassembled state in fig. 1;
fig. 3 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;
fig. 4 is an enlarged schematic structural view of the utility model at the position B in fig. 1;
fig. 5 is an enlarged schematic structural diagram of the present invention at C in fig. 1.
In the figure: 1. a glass device body; 101. a glass connection frame; 102. a rubber strip; 103. a first slot; 104. a first fixed insert; 105. a first fixed connecting block; 106. a first pull ring; 107. a first spring; 108. a second slot; 109. a second fixed connecting block; 110. a second tab; 111. a third fixed connecting block; 112. a third slot is formed; 113. a first slide bar; 114. a first slider; 115. a second spring; 2. cleaning the brush block; 201. a fourth fixed connecting block; 202. pulling a handle; 203. a second slide bar; 204. a fourth slot is formed; 205. a second slider; 206. a third spring; 207. fifthly, slotting; 208. a second fixed insert; 209. a fifth fixed connecting block; 210. a sixth fixed connecting block; 211. a sixth groove is formed; 212. a third slide bar; 213. a fourth spring; 214. a fixed connecting rod; 215. a seventh slot; 216. a third fixed insert block; 217. an eighth slot; 3. a glass frame; 301. a ninth slot is formed; 302. a fourth slide bar; 303. and a third slide block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides an embodiment: a stainless steel ventilation window convenient for maintenance comprises a glass device body 1, wherein the outer wall of the glass device body 1 is fixedly connected with a glass connecting frame 101, the corners of the glass connecting frame 101 are fixedly connected with rubber strips 102, the top ends of the inner sides of the rubber strips 102 are provided with second grooves 108, the inner sides of the second grooves 108 are inserted with second fixed connecting blocks 109, the second fixed connecting blocks 109 are fixedly connected with second pull rings 110, the inner sides of the second fixed connecting blocks 109 are fixedly connected with the middle parts of the outer sides of third fixed inserting blocks 216, the inner sides of the third fixed inserting blocks 216 are fixedly connected with first sliding blocks 114 in the middle parts of the outer sides of the third fixed inserting blocks 216, the middle parts of the upper ends of the first sliding blocks 114 are fixedly connected with third fixed connecting blocks 111, the first sliding blocks 114 all slide on the outer wall of a first sliding rod 113, the first sliding rod 113 all slide on the outer wall of the first sliding rod 113, the middle parts of the inner sides of the first sliding blocks 114 are welded with second springs 115, and the end of the second spring 115 far away from the first slider 114 is welded in the middle of the inner wall of the third groove 112, and the middle of the second spring 115 surrounds the outer wall of the first sliding rod 113, so that the problems of damage and the like in the use process of the glass device main body 1 can be quickly replaced, the convenience of the device in the use process is ensured, the working efficiency of the device in the use process is further improved, and the practicability of the device is greatly improved.
First fluting 103 has all been seted up to the middle part upper end in the second fixed connection piece 109 outside, and first fluting 103 inboard all is inserted and is equipped with first fixed inserted block 104, the outer wall that first fixed inserted block 104 outside top all runs through rubber strip 102 extends to the inboard bottom middle part of first fixed connection piece 105, first spring 107 has all been welded to the inboard bottom both sides of first fixed connection piece 105, the one end that first spring 107 kept away from first fixed connection piece 105 all welds on the outer wall of rubber strip 102, first fixed connection piece 105 outside top middle part all first pull ring 106 of fixedly connected with, and first pull ring 106's orthographic cross-section all is "ring form", make the device more firm in the use, the stability of device has been ensured, also make the device more convenient in the operation, the convenience of device has been improved.
The glass device main body 1 is installed in the middle of the front end of a glass frame 3, ninth open grooves 301 are symmetrically formed in the middle of the two sides of the glass frame 3, a fourth sliding rod 302 is fixedly connected to the middle of the inner wall of each ninth open groove 301, a third sliding block 303 is slidably connected to the outer wall of each fourth sliding rod 302, a sixth open groove 211 is formed in the middle of the left side of the right third sliding block 303, a fifth fixed connecting block 209 is fixedly connected to the middle of the inner wall of each sixth open groove 211, the top end of the left side of the fifth fixed connecting block 209 is inserted into the middle of the right side of the sixth fixed connecting block 210, the left side of the sixth fixed connecting block 210 is fixedly connected to the top end of the right side of the third sliding rod 212, the left side of the third sliding rod 212 is inserted into the middle of the inner side of the fixed connecting rod 214, the top end of the left side of the fixed connecting rod 214 is fixedly connected to the top end of the right side of the cleaning brush block 2, a fourth spring 213 is welded around the outer wall of the third sliding rod 212, and the top end of the right side of the fourth spring 213 is welded to the left middle of the sixth fixed connecting block 210, the eighth fluting 217 has been seted up in the right side middle part of left end third slider 303, and the eighth fluting 217 inboard is inserted and is equipped with another fixed link 214, and the one end fixed connection that the eighth fluting 217 was kept away from to another fixed link 214 is on the left side top of cleaning brush piece 2, and its effect lies in can carrying out effectual clearance to the device, has also saved the time at clean in-process, has ensured the convenience of device in the use.
The lower ends of the middle parts of the inner sides of the two groups of third sliding blocks 303 are respectively provided with a fifth open groove 207, the inner sides of the fifth open grooves 207 are respectively inserted with a second fixed inserting block 208, the bottom ends of the inner sides of the second fixed inserting blocks 208 are fixedly connected with a fourth fixed connecting block 201, the bottom ends of the fourth fixed connecting block 201 are respectively fixedly connected with the middle part of the top end of the second sliding block 205, the second sliding blocks 205 are respectively slid on the outer wall of the second sliding rod 203, the second sliding rods 203 are respectively fixedly connected with the middle part of the inner wall of the fourth open groove 204, the fourth open groove 204 is arranged in the middle part of the cross rod, the cross rod is fixedly connected with the two sides of the bottom end of the glass connecting frame 101, the middle parts of the outer sides of the second sliding blocks 205 are respectively welded with a third spring 206, one end of the third spring 206 far away from the second sliding block 205 is respectively welded in the middle part of the inner wall of the fourth open groove 204, the middle part of the third spring 206 is respectively surrounded on the outer wall of the second sliding rod 203, and the device can be conveniently pulled, the convenience of the device in the use process is ensured.
The middle parts of the front ends of the two groups of fixed connecting rods 214 are fixedly connected with the pull handle 202, and the middle parts of the inner sides of the pull handle 202 are provided with anti-skid grains, so that the friction force between the hands of workers and the pull handle 202 can be increased, and the stability of the device in the use process is ensured.
The middle part of the inner side of the eighth slot 217 is fixedly connected with a third fixed inserting block 216, the right top end of the third fixed inserting block 216 is inserted into a seventh slot 215, and the seventh slot 215 is arranged at the left top end of another fixed connecting rod 214, so that the device is more convenient to detach and replace in the using process, and the integrity of the device in the using process is ensured.
The working principle is as follows: when the glass device body 1 needs to be replaced, the first pull ring 106 is pulled outwards at this time to drive the first fixed connecting block 105 fixedly connected with the first pull ring 106, so that the first fixed inserting block 104 fixedly connected with the first fixed connecting block 105 is enabled, the first springs 107 welded on two sides of the first fixed inserting block 104 are enabled to drive the locking state of the top end of the inner side of the first fixed inserting block 104 and the middle part of the inner wall of the first open groove 103 to be separated under the action of elastic potential energy, the third fixed inserting block 216 is pulled towards the right side at this time, and the first sliding block 114 fixedly connected with the third fixed inserting block 216 is enabled to drive the second fixed connecting block 109 to be separated from the locking state of the middle part of the inner wall of the second open groove 108 under the drive of the elastic potential energy of the second spring 115. The glass device body 1 can now be replaced.
When the cleaning brush block 2 needs to be removed, the fourth fixed connecting block 201 is pulled to the right side at this time, the second sliding block 205 fixedly connected with the fourth fixed connecting block 201 is driven to slide to the right side, so that the second fixed inserting block 208 is separated from the locking state with the inner wall of the fifth open groove 207 under the action of the elastic potential energy of the third spring 206, the pull handle 202 is pulled to the right side at this time, the fixed connecting rod 214 fixedly connected with the pull handle 202 is driven to move to the right side under the action of the elastic potential energy of the fourth spring 213, meanwhile, the third sliding rod 212 fixedly connected with the fixed connecting rod 214 is also driven to move to the right side, at this time, the top end of the left side of the fixed connecting rod 214 is separated from the locking state with the seventh open groove 215, at this time, the cleaning brush block 2 is completely removed, and the operation is finished.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A stainless steel ventilation window convenient to maintain comprises a glass device main body (1), and is characterized in that: the glass device is characterized in that a glass connecting frame (101) is fixedly connected to the outer wall of a glass device main body (1), rubber strips (102) are fixedly connected to corners of the glass connecting frame (101), second grooves (108) are formed in the top ends of the inner sides of the rubber strips (102), second fixed connecting blocks (109) are inserted into the inner sides of the second grooves (108), second pull rings (110) are fixedly connected to the second fixed connecting blocks (109), the inner sides of the second fixed connecting blocks (109) are fixedly connected to the middle of the outer sides of third fixed inserting blocks (216), the inner sides of the third fixed inserting blocks (216) are fixedly connected to the middle of the outer sides of the third fixed inserting blocks (216) and first sliding blocks (114) are fixedly connected to the middle of the upper ends of the first sliding blocks (114), the first sliding blocks (114) slide on the outer wall of a first sliding rod (113), the first sliding rod (113) slides on the outer wall of the first sliding rod (113), the middle of the inner side of the first sliding block (114) is welded with a second spring (115), one end, far away from the first sliding block (114), of the second spring (115) is welded on the middle of the inner wall of the third groove (112), and the middle of the second spring (115) is encircled on the outer wall of the first sliding rod (113).
2. A stainless steel ventilation window for easy maintenance according to claim 1, wherein: first fluting (103) have all been seted up to the middle part upper end in second fixed connection piece (109) outside, and first fluting (103) inboard all inserts and is equipped with first fixed inserted block (104), the outer wall that rubber strip (102) all run through on first fixed inserted block (104) outside top extends to the inboard bottom middle part of first fixed connection piece (105), first spring (107) have all been welded to first fixed connection piece (105) inboard bottom both sides, the one end that first fixed connection piece (105) were kept away from in first spring (107) all welds on the outer wall of rubber strip (102), first fixed connection piece (105) outside top middle part all fixedly connected with first pull ring (106), and the cross-section of looking forward of first pull ring (106) all is "the ring form".
3. A stainless steel ventilation window for easy maintenance according to claim 1, wherein: the glass device main body (1) is installed in the middle of the front end of a glass frame (3), the middles of two sides of the glass frame (3) are symmetrically provided with a ninth groove (301), the middle of the inner wall of the ninth groove (301) is fixedly connected with a fourth sliding rod (302), the outer wall of the fourth sliding rod (302) is slidably connected with a third sliding block (303), the right end of the left side of the third sliding block (303) is provided with a sixth groove (211), the middle of the inner wall of the sixth groove (211) is fixedly connected with a fifth fixed connecting block (209), the left top end of the fifth fixed connecting block (209) is inserted in the middle of the right side of the sixth fixed connecting block (210), the left side of the sixth fixed connecting block (210) is fixedly connected to the top end of the right side of the third sliding rod (212), the left side of the third sliding rod (212) is inserted in the middle of the inner side of the fixed connecting rod (214), the left top end of the fixed connecting rod (214) is fixedly connected to the right top end of the cleaning brush block (2), the outer wall of third slide bar (212) encircles the welding and has fourth spring (213), and fourth spring (213) right side top welding is at the left side middle part of sixth fixed connection piece (210), the left end eighth fluting (217) have been seted up at the right side middle part of third slider (303), and eighth fluting (217) inboard is inserted and is equipped with another fixed link (214), another the one end fixed connection that eighth fluting (217) was kept away from in fixed link (214) is on the left side top of cleaning brush piece (2).
4. A stainless steel ventilation window for easy maintenance according to claim 3, wherein: the lower ends of the middle parts of the inner sides of the two groups of third sliding blocks (303) are respectively provided with a fifth open groove (207), the inner sides of the fifth open grooves (207) are respectively inserted with a second fixed inserting block (208), the bottom ends of the inner sides of the second fixed inserting blocks (208) are fixedly connected with a fourth fixed connecting block (201), the bottom ends of the fourth fixed connecting blocks (201) are respectively and fixedly connected with the middle part of the top end of the second sliding block (205), the second sliding blocks (205) are respectively slid on the outer wall of the second sliding rod (203), the second sliding rods (203) are respectively and fixedly connected with the middle part of the inner wall of the fourth open groove (204), the fourth open groove (204) is arranged in the middle part of a cross bar, the cross bar is fixedly connected with the two sides of the bottom end of the glass connecting frame (101), the middle part of the outer side of the second sliding block (205) is respectively welded with a third spring (206), and one end of the third spring (206) far away from the second sliding block (205) is respectively welded on the inner wall of the fourth open groove (204), the middle part of the third spring (206) is wound on the outer wall of the second sliding rod (203).
5. A stainless steel ventilation window for easy maintenance according to claim 4, wherein: the middle parts of the front ends of the two groups of fixed connecting rods (214) are fixedly connected with pull handles (202), and the middle parts of the inner sides of the pull handles (202) are provided with anti-skid grains.
6. A stainless steel ventilation window for easy maintenance according to claim 4, wherein: the middle part of the inner side of the eighth slot (217) is fixedly connected with a third fixed inserting block (216), the top end of the right side of the third fixed inserting block (216) is inserted into the inner side of a seventh slot (215), and the seventh slot (215) is arranged at the top end of the left side of another fixed connecting rod (214).
CN202022619219.3U 2020-11-12 2020-11-12 Stainless steel ventilation window convenient to maintain Active CN214697601U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022619219.3U CN214697601U (en) 2020-11-12 2020-11-12 Stainless steel ventilation window convenient to maintain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022619219.3U CN214697601U (en) 2020-11-12 2020-11-12 Stainless steel ventilation window convenient to maintain

Publications (1)

Publication Number Publication Date
CN214697601U true CN214697601U (en) 2021-11-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022619219.3U Active CN214697601U (en) 2020-11-12 2020-11-12 Stainless steel ventilation window convenient to maintain

Country Status (1)

Country Link
CN (1) CN214697601U (en)

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