CN113153123A - Anti-freezing guide rail and anti-freezing bottom support of rolling shutter door - Google Patents
Anti-freezing guide rail and anti-freezing bottom support of rolling shutter door Download PDFInfo
- Publication number
- CN113153123A CN113153123A CN202110500346.8A CN202110500346A CN113153123A CN 113153123 A CN113153123 A CN 113153123A CN 202110500346 A CN202110500346 A CN 202110500346A CN 113153123 A CN113153123 A CN 113153123A
- Authority
- CN
- China
- Prior art keywords
- guide rail
- main body
- bottom support
- antifreeze
- freezing
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/58—Guiding devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/0021—Locks or fastenings for special use for overhead or roll-up doors, e.g. garage doors
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
- E06B7/23—Plastic, sponge rubber, or like strips or tubes
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/08—Roll-type closures
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/58—Guiding devices
- E06B2009/586—Guiding devices with heating to prevent frost or condensate
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/58—Guiding devices
- E06B2009/588—Sealings for guides
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B2009/801—Locking arrangements
- E06B2009/805—Locking arrangements located on or in the guides
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention discloses an anti-freezing guide rail and an anti-freezing bottom support for a rolling door, which comprise a guide rail main body and a bottom support main body, wherein the guide rail main body comprises a guide rail cavity, a heat insulation layer and a first waterproof layer, the guide rail cavity is positioned on one side of the guide rail main body, the heat insulation layer is positioned on one side of the guide rail cavity, the first waterproof layer is positioned on the outer side of the guide rail main body, a first pulley and a second pulley are arranged on one side of the guide rail cavity, a first electric heating belt and a second electric heating belt are arranged inside the guide rail main body, a first controller is also arranged inside the guide rail main body, the bottom support main body comprises a second waterproof layer, the second waterproof layer is positioned on the outer side of the bottom support main body, an adsorption magnet is arranged at the top of the bottom support main body, a third electric heating belt is arranged at the bottom end of the adsorption magnet, and a second controller is arranged inside the bottom support main body. The invention researches out a method for increasing electric tracing heat in a guide rail cavity and increasing electric heat in a ground bottom support, so that the roller shutter door can not be frozen after reaching a certain heat temperature, the roller shutter door can run normally, and the phenomenon of disjointing of the roller shutter door sheets can not occur after being frozen.
Description
Technical Field
The invention relates to the field of rolling doors, in particular to an anti-freezing guide rail and an anti-freezing bottom support of a rolling door.
Background
The rolling door is characterized in that a plurality of movable door sheets are connected in series, a scroll above the door rotates up and down in a fixed slideway as a center, when the rolling door is used in a breeding enterprise or a food factory in a northern cold area, the ground is flushed by a water gun frequently, the phenomenon that a rolling door line, a guide rail and the ground are frozen in winter can occur, the normal operation of the rolling door is influenced, the phenomenon that the rolling door curtain is disjointed after being frozen can occur, and in order to prevent the rolling door and the guide rail ground from being frozen, the guide rail and the bottom support with the anti-freezing function are urgently needed.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention aims to provide an anti-freezing guide rail and an anti-freezing bottom support for a rolling door, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: including guide rail main part and collet main part, the guide rail main part is located the both sides of collet main part, the guide rail main part includes guide rail chamber, heat preservation and first waterproof layer, the guide rail chamber is located one side of guide rail main part, the heat preservation is located one side of guide rail chamber, first waterproof layer is located the outside of guide rail main part, one side in guide rail chamber is equipped with first pulley and second pulley, the inside of guide rail main part is equipped with first electric heat tape and second electric heat tape, the inside of guide rail main part still is equipped with first controller, the collet main part includes the second waterproof layer, the second waterproof layer is located the outside of collet main part, the top of collet main part is equipped with adsorption magnet, adsorption magnet's bottom is equipped with the third electric heat tape, the inside of collet main part is equipped with the second controller.
Furthermore, the first electric heating belt is fixedly connected with the guide rail main body through a bolt, and the second electric heating belt is fixedly connected with the guide rail main body through a bolt.
Furthermore, the third electric heating belt is fixedly connected with the bottom support main body through bolts.
Furthermore, the first controller is fixedly connected with the guide rail main body through a bolt, the second controller is fixedly connected with the bottom support main body through a bolt, a control panel is arranged on one side of the guide rail main body, and the control panel is connected with the first controller through a wire.
Furthermore, the first pulley is a plurality of, the second pulley is a plurality of, the first pulley with guide rail main body bearing is connected, the second pulley with collet main body bearing is connected.
Further, the bottom in guide rail chamber is equipped with the lock, the top of lock is equipped with damping spring, the both sides of collet main part are equipped with the hasp, the hasp with collet main part bolt fixed connection, the hasp with the guide rail chamber cup joints, the hasp with the lock cup joints.
Furthermore, the heat-insulating layer is formed by a rubber foam plate.
Furthermore, the first waterproof layer is made of rubber plates, and the second waterproof layer is made of rubber plates.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the anti-freezing guide rail and the anti-freezing bottom support of the rolling door, the guide rail cavity, the heat preservation layer, the first electric heating belt, the second electric heating belt, the first controller, the second controller and the third electric heating belt are arranged, the first electric heating belt and the second electric heating belt can be started to work through the first controller, low-temperature heating is carried out on the interior of the guide rail cavity, and the heat preservation layer can realize continuous heat preservation; the third electric heat tape is started to work through the second controller, auxiliary heating is carried out on the bottom support main body, the bottom support main body is enabled to reach a certain hot temperature and is not frozen, and the effect of facilitating anti-freezing and heat preservation is achieved.
(2) According to the anti-freezing guide rail and the anti-freezing bottom support for the rolling door, the first waterproof layer and the second waterproof layer which are made of rubber materials are respectively arranged on the outer sides of the guide rail main body and the bottom support main body, so that the effect of facilitating water proofing can be achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the antifreeze guide rail and antifreeze shoe of a roller shutter door according to the present invention;
FIG. 2 is a schematic top view of the interior of the body of the track in the antifreeze guide track and antifreeze shoe of a roller door according to the invention;
FIG. 3 is a schematic side view of the interior of the body of the track in the antifreeze guide track and antifreeze shoe of a roller door according to the invention;
FIG. 4 is a schematic view of the structure of the anti-freezing bottom support of the rolling door and the inside of the bottom support body in the anti-freezing bottom support.
Reference numerals:
1. a guide rail main body; 101. a guide rail cavity; 102. a heat-insulating layer; 103. a first waterproof layer; 104. a first pulley; 105. a second pulley; 106. a dust isolating brush; 107. a first electric heating tape; 108. a second electric heating tape; 109. a first controller; 110. a door lock; 111. a damping spring; 112. a control panel; 2. a collet body; 201. a second waterproof layer; 202. locking; 203. adsorbing a magnet; 204. a third electric heating tape; 205. a second controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the antifreeze guide rail and the antifreeze shoe for a roller shutter door according to the embodiment of the present invention includes a guide rail main body 1 and a shoe main body 2, the guide rail main body 1 is located at both sides of the shoe main body 2, the guide rail main body 1 includes a guide rail cavity 101, an insulation layer 102 and a first waterproof layer 103, the guide rail cavity 101 is located at one side of the guide rail main body 1, the insulation layer 102 is located at one side of the guide rail cavity 101, the first waterproof layer 103 is located at the outer side of the guide rail main body 1, one side of the guide rail cavity 101 is provided with a first pulley 104 and a second pulley 105, the guide rail main body 1 is internally provided with a first electric heating tape 107 and a second electric heating tape 108, the guide rail main body 1 is internally provided with a first controller 109, the shoe main body 2 includes a second waterproof layer 201, the second waterproof layer 201 is located at the outer side of the shoe main body 2, the top of the shoe main body 2 is provided with an adsorption magnet 203, the bottom end of the adsorption magnet 203 is provided with a third electric heating tape 204, the second controller 205 is arranged in the bottom support main body 2, the electric tracing heat is added in the guide rail cavity, the electric heat is added in the ground bottom support, the roller shutter door can not be frozen after reaching a certain heat temperature, the roller shutter door can normally operate, and the phenomenon that the roller shutter door sheet is disconnected after being frozen is avoided.
According to the scheme of the invention, the first electric heating belt 107 is fixedly connected with the guide rail body 1 through bolts, the second electric heating belt 108 is fixedly connected with the guide rail body 1 through bolts, the third electric heating belt 204 is fixedly connected with the shoe body 2 through bolts, the first controller 109 is fixedly connected with the guide rail body 1 through bolts, the second controller 205 is fixedly connected with the shoe body 2 through bolts, the control panel 112 is arranged on one side of the guide rail body 1, and the control panel 112 is in electric connection with the first controller 109, so that the effect of facilitating auxiliary heating and anti-icing is achieved.
According to the above-mentioned solution of the present invention, there are several first pulleys 104 and several second pulleys 105, the first pulleys 104 are connected with the guide rail body 1 by bearings, and the second pulleys 105 are connected with the shoe body 2 by bearings, so as to facilitate the auxiliary sliding effect.
According to the scheme of the invention, the door lock 110 is arranged at the bottom end of the guide rail cavity 101, the damping spring 111 is arranged at the top end of the door lock 110, the lock catches 202 are arranged on two sides of the bottom support main body 2, the lock catches 202 are fixedly connected with the bottom support main body 2 through bolts, the lock catches 202 are sleeved with the guide rail cavity 101, and the lock catches 202 are sleeved with the door lock 110, so that the damping door locking effect is achieved.
According to the scheme of the invention, the heat-insulating layer 102 is made of a rubber foam plate, so that the heat-insulating effect is facilitated.
According to the above scheme of the present invention, the first waterproof layer 103 is made of a rubber plate, and the second waterproof layer 201 is made of a rubber plate, so as to achieve the effect of facilitating water seepage prevention.
In specific application, the first electric heating belt 107 and the second electric heating belt 108 are started to work through the control panel 112 and the first controller 109, low-temperature heating is performed on the interior of the guide rail cavity 101, the heat preservation layer 102 can achieve a continuous heat preservation effect, and therefore the anti-freezing and heat preservation effects of the slide rail are achieved; the third electric heating belt 204 is started to work through the second controller 205, so that the main body 2 of the bottom support is heated in an auxiliary manner, and the effect of preventing the bottom support from being frozen is achieved; collet main part 1 reciprocates along guide rail chamber 101 through hasp 202, and accessible hasp 202 cup joints with lock 110, and the outside of guide rail main part 1 and collet main part 2 has set up rubber material's first waterproof layer 103 and second waterproof layer 201 respectively, can play the effect of the prevention of seepage water of being convenient for.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The anti-freezing guide rail and the anti-freezing bottom support for the roller shutter door are characterized by comprising a guide rail main body (1) and a bottom support main body (2), wherein the guide rail main body (1) is positioned on two sides of the bottom support main body (2), the guide rail main body (1) comprises a guide rail cavity (101), a heat insulation layer (102) and a first waterproof layer (103), the guide rail cavity (101) is positioned on one side of the guide rail main body (1), the heat insulation layer (102) is positioned on one side of the guide rail cavity (101), the first waterproof layer (103) is positioned on the outer side of the guide rail main body (1), one side of the guide rail cavity (101) is provided with a first pulley (104) and a second pulley (105), a first electric heating belt (107) and a second electric heating belt (108) are arranged inside the guide rail main body (1), a first controller (109) is further arranged inside the guide rail main body (1), and the bottom support main body (2) comprises a second waterproof layer (201), the second waterproof layer (201) is located the outside of collet main part (2), the top of collet main part (2) is equipped with adsorption magnet (203), the bottom of adsorption magnet (203) is equipped with third electric heat tape (204), the inside of collet main part (2) is equipped with second controller (205).
2. The antifreeze roller door guide rail and the antifreeze mounting as set forth in claim 1, wherein said first electric heating belt (107) is bolted to said guide rail body (1), and said second electric heating belt (108) is bolted to said guide rail body (1).
3. A roller door antifreeze guide rail and antifreeze mounting as claimed in claim 1, wherein said third ribbon heater (204) is bolted to said mounting body (2).
4. A roller shutter door antifreeze guide rail and antifreeze mount according to claim 1, wherein said first controller (109) is fixedly connected with said guide rail main body (1) by bolts, said second controller (205) is fixedly connected with said mount main body (2) by bolts, a control panel (112) is provided on one side of said guide rail main body (1), said control panel (112) is connected with said first controller (109) by wires.
5. A roller shutter door antifreeze guide and antifreeze shoe as claimed in claim 1, wherein said first plurality of pulleys (104) and said second plurality of pulleys (105) are provided, said first pulleys (104) being bearing-connected to said guide body (1) and said second pulleys (105) being bearing-connected to said shoe body (2).
6. The roller shutter door anti-freezing guide rail and the anti-freezing bottom support according to claim 1, wherein a door lock (110) is arranged at the bottom end of the guide rail cavity (101), a damping spring (111) is arranged at the top end of the door lock (110), lock catches (202) are arranged on two sides of the bottom support main body (2), the lock catches (202) are fixedly connected with the bottom support main body (2) through bolts, the lock catches (202) are sleeved with the guide rail cavity (101), and the lock catches (202) are sleeved with the door lock (110).
7. A roller door freeze rail and freeze shoe as claimed in claim 1, characterised in that said insulation (102) is formed from rubber foam.
8. The antifreeze guide rail and the antifreeze shoe for the roller shutter door as claimed in claim 1, wherein the first waterproof layer (103) is made of rubber plate, and the second waterproof layer (201) is made of rubber plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110500346.8A CN113153123A (en) | 2021-05-08 | 2021-05-08 | Anti-freezing guide rail and anti-freezing bottom support of rolling shutter door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110500346.8A CN113153123A (en) | 2021-05-08 | 2021-05-08 | Anti-freezing guide rail and anti-freezing bottom support of rolling shutter door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113153123A true CN113153123A (en) | 2021-07-23 |
Family
ID=76874008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110500346.8A Pending CN113153123A (en) | 2021-05-08 | 2021-05-08 | Anti-freezing guide rail and anti-freezing bottom support of rolling shutter door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113153123A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09279955A (en) * | 1996-04-10 | 1997-10-28 | Sankyo Alum Ind Co Ltd | Opening/closing body of opening part |
| CN2923960Y (en) * | 2006-07-17 | 2007-07-18 | 丛文滨 | Soft quick rolling-door structure |
| CN105545194A (en) * | 2016-01-25 | 2016-05-04 | 广西顺森门业有限公司 | Multi-wheel electric roller shutter door |
| CN205955609U (en) * | 2016-08-18 | 2017-02-15 | 朱庆勤 | Muting roller shutter door |
| CN109025766A (en) * | 2018-08-06 | 2018-12-18 | 国核电力规划设计研究院有限公司 | A kind of ventilating and thermal insulating window |
| CN208918458U (en) * | 2018-06-05 | 2019-05-31 | 沈阳欧诺门业有限公司 | Rolling screen door |
| CN212958177U (en) * | 2020-06-30 | 2021-04-13 | 郎晓锋 | Side sliding door track mechanism |
-
2021
- 2021-05-08 CN CN202110500346.8A patent/CN113153123A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09279955A (en) * | 1996-04-10 | 1997-10-28 | Sankyo Alum Ind Co Ltd | Opening/closing body of opening part |
| CN2923960Y (en) * | 2006-07-17 | 2007-07-18 | 丛文滨 | Soft quick rolling-door structure |
| CN105545194A (en) * | 2016-01-25 | 2016-05-04 | 广西顺森门业有限公司 | Multi-wheel electric roller shutter door |
| CN205955609U (en) * | 2016-08-18 | 2017-02-15 | 朱庆勤 | Muting roller shutter door |
| CN208918458U (en) * | 2018-06-05 | 2019-05-31 | 沈阳欧诺门业有限公司 | Rolling screen door |
| CN109025766A (en) * | 2018-08-06 | 2018-12-18 | 国核电力规划设计研究院有限公司 | A kind of ventilating and thermal insulating window |
| CN212958177U (en) * | 2020-06-30 | 2021-04-13 | 郎晓锋 | Side sliding door track mechanism |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210723 |