CN110656827A - Safety lock for detection door of drying kiln - Google Patents
Safety lock for detection door of drying kiln Download PDFInfo
- Publication number
- CN110656827A CN110656827A CN201910979878.7A CN201910979878A CN110656827A CN 110656827 A CN110656827 A CN 110656827A CN 201910979878 A CN201910979878 A CN 201910979878A CN 110656827 A CN110656827 A CN 110656827A
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- CN
- China
- Prior art keywords
- detection door
- handle
- phi
- safety lock
- drying kiln
- 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
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C3/00—Fastening devices with bolts moving pivotally or rotatively
- E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
- E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
- E05C3/041—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted
- E05C3/042—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted the handle being at one side, the bolt at the other side or inside the wing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/08—Parts thereof
- F26B25/12—Walls or sides; Doors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention provides a safety lock of a detection door of a drying kiln, which comprises an outer handle (4), an inner handle (5), a locking point (6), a transmission shaft (7), a shaft sleeve (8), an M8 self-locking nut (9), a countersunk head bolt (12), a phi 50 outer flange (14), a phi 50 inner flange (16) and a bolt (17); the transmission shaft (7) penetrates through the inner circle of the shaft sleeve (8), and the M8 self-locking nut (9) respectively fastens the outer handle (4) and the inner handle (5) at two ends of the transmission shaft (7); the locking point (6) is fastened on the inner wall (1-1) of the detection door frame (1) through the bolt (17). The invention has the switch limit function, and avoids the influence of error operation on the opening and closing effect of the detection door; the escape function of opening the kiln inside and outside can be realized, and the condition that the workers are locked in the kiln by mistake is avoided; the stainless steel and the fluororubber are made of two special materials, so that the device has no fault, is free from maintenance and can effectively prolong the service life of the device.
Description
Technical Field
The invention relates to the technical field of safety locks, in particular to a safety lock of a detection door of a drying kiln.
Background
The wood drying industry has a drying kiln, and the drying kiln of the type plays a leading role in wood drying markets at home and abroad due to large material loading, high drying efficiency and relatively low construction cost and operation cost. The detection door on the drying kiln in the prior art is mostly a door lock capable of being opened in one direction outside the kiln, and does not have the function of opening in two directions inside and outside the kiln, so that casualty accidents caused by mistakenly locking the working personnel in the kiln occur every year, and certain safety risks exist. Therefore, from the perspective of safe production, the invention can effectively reduce the occurrence probability of risk accidents, and has a very long-term market popularization value in the industry.
The invention discloses a fire-retardant fireproof door capable of being opened in two directions, which comprises an outer door frame, a door leaf, a door closer, an installation frame, a locking piece, a movable shaft, a door handle, an outer frame, an inner core, a groove, a movable hinged seat, a fire-retardant expansion sealing strip, a base layer panel, a door core plate, an inner layer sealing strip, an outer layer sealing strip, an inner door frame, an interface adhesive layer, a fire-retardant isolation layer and an expansion buffer layer. The prior art CN205537088U discloses a wood drying kiln embedded type automatic opening installation inspection wicket, which comprises a wicket body and a plurality of movable hinge groups connected to one side of the wicket body, wherein the wicket body is rotatably connected to a door frame fixed on the drying kiln through the plurality of movable hinge groups, and at least one embedded type device is arranged on the other side of the wicket body, which is opposite to the movable hinge group; each group of embedded devices comprises a fixed seat fixed on the door frame and a wedge fixed on the door body and arranged opposite to the fixed seat, each wedge comprises a fixed part and a fit part, and one side of each fit part, which is back to the fixed seat, is provided with a spherical surface; one side of the fixed seat facing the wedge is provided with a rotatable ball, and the spherical surface of the conjunction part of the wedge is inserted into the ball to realize locking.
Because the operation environment of the wood drying kiln is very complex, the safety lock of the detection door needs to meet high and low temperature (high temperature 150 ℃, low temperature-60 ℃), high humidity (air humidity 100%), corrosion resistance (acid environment PH5), aging resistance (long-term high temperature, high humidity and acid environment), excellent sealing and other high standards and strong requirements, the safety lock which is simple to operate, reasonable in sealing structure and excellent in material quality is designed, and the safety lock capable of meeting the standards and the requirements is the key technology of the invention.
Disclosure of Invention
The invention aims to provide a development and application technology of a safety lock of a detection door of a drying kiln, so as to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme:
the safety lock for the detection door of the drying kiln comprises an outer handle, an inner handle, a locking point, a transmission shaft, a shaft sleeve, an M8 self-locking nut, a countersunk bolt, an outer flange, an inner flange and a bolt; the transmission shaft penetrates through the inner circle of the shaft sleeve, and the M8 self-locking nut respectively fastens the outer handle and the inner handle at two ends of the transmission shaft; the shaft sleeve penetrates through the outer wall and the inner wall of the detection door leaf frame, and two ends of the shaft sleeve are respectively welded with the outer flange and the inner flange; the locking point is fastened on the inner wall of the detection door frame through the bolt; the outer flange and the inner flange are respectively fastened on the outer wall of the detection door leaf frame and the inner wall of the detection door leaf frame through the countersunk bolts.
Preferably, the outer flange and the inner flange are both made of stainless steel, and have the specifications of phi 50 multiplied by 5mm and an inner hole phi 27 mm.
Preferably, the shaft sleeve is made of stainless steel, and has the specification of phi 25 multiplied by 100mm and the wall thickness of 2 mm.
Preferably, the inner handle and the outer handle are both made of stainless steel materials, and the thickness of the inner handle and the thickness of the outer handle are both 5 mm; the transmission shaft is made of stainless steel and has the specification of phi 20 multiplied by 150 mm; the tensile strength, the compressive strength and the corrosion resistance of the inner handle, the outer handle and the transmission shaft meet the design requirements.
Specifically, when the inner handle is in a vertical state and is completely separated from the locking point, the detection door is completely opened; when the inner handle is in a horizontal state and is completely meshed with the locking point, the detection door is completely closed.
Specifically, set up on the outer flange and open, close the locating pin, this open, close the locating pin to outer handle has the spacing function, only need touch outer handle on can, easy operation, understandable.
Preferably, the lock point is made of stainless steel, the lock point is a parabolic upper plane, the meshing condition of the inner handle and the lock point is adjustable, a silicon rubber sealing ring on the detection door leaf frame can be effectively pressed, and steam leakage in the kiln is prevented.
The safety lock for the detection door further comprises a fluororubber sealing washer embedded at two ends of the transmission shaft, the fluororubber sealing washer and the outer flange are fastened on the outer wall of the detection door leaf frame through the countersunk head bolt, and the fluororubber sealing washer and the inner flange are fastened on the inner wall of the detection door leaf frame through the countersunk head bolt; the fluororubber sealing gasket has specifications of phi 50 multiplied by 6mm and an inner hole phi 20mm, has the performances of wear resistance, high temperature resistance, corrosion resistance and aging resistance, and plays a very key role in sealing the detection door.
Specifically, the safety lock for the detection door further comprises a phi 50 flat gasket which is embedded on the transmission shaft, wherein the phi 50 flat gasket is arranged among the inner handle, the outer handle and the fluororubber sealing gasket, and plays a role in sliding friction and reducing abrasion of the handles to the fluororubber sealing gasket; the phi 50 flat pad is made of stainless steel, and has the specification of 2mm in thickness and 20mm in inner hole phi.
Specifically, the detection door safety lock further comprises a phi 23 flat pad, and the self-locking nut locks and fixes the outer handle and the inner handle on the transmission shaft through the phi 23 flat pad, so that the handle can be effectively prevented from loosening and falling off; the phi 23 flat pad is made of stainless steel, and has the specification of thickness of 2mm and an inner hole phi of 8.5 mm.
Compared with the prior art, the invention has the beneficial effects that:
1. the safety lock can effectively compress the silicon rubber O-shaped sealing ring around the fan frame, and prevent steam in the kiln from leaking outwards through a gap of the door frame;
2. the safety lock specially customizes the fluororubber annular gasket, is wear-resistant, high-temperature resistant, corrosion-resistant and aging-resistant, and can effectively prevent steam in the kiln from leaking outwards through the transmission shaft;
3. the safety lock has a switch limiting function, and the opening and closing effects of the detection door are prevented from being influenced by misoperation;
4. the safety lock can realize the escape function of opening inside and outside the kiln in two directions, and avoid the accident casualty accident caused by the mistaken locking of the workers inside the kiln;
5. the safety lock is made of two special materials, namely stainless steel and fluororubber, has zero faults, is free from maintenance, and can effectively prolong the service life of equipment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic view of the assembly structure of the safety lock of the inspection door of the invention;
FIG. 2 is a disassembled, externally visible isometric view of the security lock of the inspection door of the present invention;
FIG. 3 is a disassembled, inside isometric view of the security lock of the inspection door of the present invention;
FIG. 4 is an isometric view of the present invention detecting a door closed condition;
FIG. 5 is an isometric view of the present invention detecting a door closed condition;
FIG. 6 is an isometric view of the present invention detecting the open condition of the door;
FIG. 7 is an isometric view of the invention detecting an open condition of the door;
FIG. 8(a) is a front view of the external handle structure of the safety lock of the inspection door of the present invention;
FIG. 8(b) is a side view of the external handle structure of the security lock of the inspection door of the present invention;
FIG. 9(a) is a front view of the internal handle structure of the security lock of the inspection door of the present invention;
FIG. 9(b) is a side view of the internal handle structure of the security lock of the inspection door of the present invention;
reference numerals: 1-detection door frame, 1-1-detection door frame inner wall, 2-detection door frame, 2-1-detection door frame outer wall, 2-2-detection door frame inner wall, 3-silicon rubber O-shaped sealing ring, 4-outer handle, 41-outer handle limiting part, 42-outer handle handheld part, 5-inner handle, 51-inner handle meshing part, 52-inner handle handheld part, 6-locking point, 7-transmission shaft, 8-shaft sleeve, 9-M8 self-locking nut, 10-phi 23 flat pad, 11-phi 50 flat pad, 12-countersunk head bolt, 13-fluorine rubber sealing washer, 14-50 outer flange, 15-opening and closing positioning pin, 16-inner flange and 17-bolt.
Detailed Description
Example 1
The safety lock of the detection door of the drying kiln comprises an outer handle 4, an inner handle 5, a locking point 6, a transmission shaft 7, a shaft sleeve 8, an M8 self-locking nut 9, a phi 23 flat gasket 10, a phi 50 flat gasket 11, a countersunk head bolt 12, a fluororubber sealing washer 13, an outer flange 14, an inner flange 16 and a bolt 17; the transmission shaft 7 penetrates through the inner circle of the shaft sleeve 8, the shaft sleeve 8 penetrates through the outer wall 2-1 and the inner wall 2-2 of the detection door leaf frame 2, and two ends of the shaft sleeve 8 are respectively welded with the outer flange 14 and the inner flange 16 and are tightly pressed and sealed with the outer wall 2-1 and the inner wall 2-2; the fluororubber sealing gaskets 13 are embedded at two ends of the transmission shaft 7, the fluororubber sealing gaskets 13 and the outer flange 14 are fastened on the outer wall 2-1 of the detection door leaf frame by the countersunk head bolts 12, and the fluororubber sealing gaskets 13 and the inner flange 16 are fastened on the inner wall 2-2 of the detection door leaf frame by the countersunk head bolts 12; the phi 50 flat pads 11 are embedded at two ends of the transmission shaft 7, and the phi 50 flat pads 11 are arranged among the inner handle 4, the outer handle 5 and the fluororubber sealing washer 13 to play roles in sliding friction and reducing abrasion of the handles to the fluororubber sealing washer 13; the M8 self-locking nut 9 locks and fixes the outer handle 4 and the inner handle 5 at two ends of the transmission shaft 7 through a phi 23 flat pad 10, so that the handle can be effectively prevented from loosening and falling off;
the locking point 6 is fastened on the inner wall 1-1 of the detection door frame 1 through a bolt 17; the occlusion condition of the inner handle 5 and the locking point 6 is adjustable, so that the silicon rubber sealing ring 3 on the detection door leaf frame 2 can be effectively pressed, and the steam leakage in the kiln is prevented; the locking point 6 is the upper plane of the parabola.
The outer flange 14 is provided with an opening and closing positioning pin 15, and the opening and closing positioning pin 15 has a limiting function on the outer handle 4, and only needs to touch the outer handle 4, so that the operation is simple and understandable.
The inner handle 4 and the outer handle 5 are both made of stainless steel materials, and the thickness of the inner handle and the thickness of the outer handle are both 5 mm; the transmission shaft 7 is made of stainless steel and has the specification of phi 20 multiplied by 150 mm; the tensile strength, the compressive strength and the corrosion resistance of the inner handle 4, the outer handle 5 and the transmission shaft 7 meet the design requirements. The size of the countersunk head bolt 12 and the bolt 17 is M6 × 20. The specifications of the fluororubber sealing washer 13 are phi 50 multiplied by 6mm and an inner hole phi 20mm, and the fluororubber sealing washer has the performances of wear resistance, high temperature resistance, corrosion resistance and aging resistance, and plays a very key role in sealing the detection door. The locking point 6 is made of stainless steel. The phi 23 flat pad 10 is made of stainless steel, and has the specification of 2mm in thickness and 8.5mm in inner hole phi; the phi 50 flat pad 11 is made of stainless steel and has the specification of 2mm in thickness and 20mm in inner hole phi. The outer flange 14 and the inner flange 16 are both made of stainless steel, and have the specifications of phi 50 multiplied by 5mm and an inner hole phi 27 mm. The shaft sleeve 8 is made of stainless steel, and has the specification of phi 25 multiplied by 100mm and the wall thickness of 2 mm.
Fig. 1 is a schematic view of an assembly structure of the safety lock of the detection door, wherein a detection door frame 1 and a leaf frame 2 are completely closed through mutual 'meshing' of an inner handle 5 and a locking point 6, and a silicon rubber O-shaped sealing ring 3 embedded on the leaf frame 2 is pressed tightly to seal the gaps around the detection door so as to prevent the detection door from leaking air. The transmission shaft 7 penetrates through the inner circle of the shaft sleeve 8, and the M8 self-locking nut 9 is used for fastening the outer handle 4 and the inner handle 5 at two ends of the transmission shaft 7 respectively, so that when any one handle is moved, the other handle is driven to rotate simultaneously, and the function of bidirectional opening of the door lock is realized.
FIG. 2 is a disassembled external perspective view of the security lock of the inspection door of the present invention, and FIG. 3 is a disassembled internal perspective view of the security lock of the inspection door of the present invention. The disassembly and assembly sequence of the inner handle and the outer handle of the safety lock and the specification and the number of required parts can be clearly and intuitively known.
Fig. 4 and 5 are respectively an interior and an exterior perspective view of the door in a state of detecting a closed state of the door. The opening and closing of the detection door are realized by the separation and combination of the inner handle 5 and the locking point 6, at the moment, the inner handle 5 is in a horizontal state, and when the inner handle occlusion part 51 is completely occluded with the locking point 6, the detection door is completely closed; the outer handle 4 is in a vertical state, and the outer handle limiting part 41 is limited by the opening and closing positioning pin 15.
Fig. 6 and 7 are respectively an inner perspective view and an outer perspective view when the door is detected in an opened state. When the inner handle 5 is in a vertical state and the inner handle occlusion part 51 is completely separated from the locking point 6, the detection door is completely opened; the outer handle 4 is in a horizontal state, and the outer handle limiting part 41 is limited by the opening and closing positioning pin 15. The positions of the inner handle and the outer handle in the opening or closing state of the safety lock can be clearly and intuitively known through the figures 4-7, and some skills and methods for opening and closing the detection door can be mastered easily.
Fig. 8 is a schematic structural diagram of the external handle of the safety lock of the inspection door of the invention, wherein fig. 8(a) is a front view of the external handle 4, fig. 8(b) is a side view of the external handle 4, and the external handle limiting part 41 and the external handle holding part 42 are respectively positioned at two ends of the external handle 4.
FIG. 9 is a schematic structural view of the inner handle of the safety lock of the inspection door of the present invention, wherein FIG. 9(a) is a front view of the inner handle 5, FIG. 9(b) is a side view of the inner handle 5, and the inner handle engaging part 51 and the outer handle holding part 52 are respectively located at both ends of the inner handle 5.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 (10)
1. The safety lock for the detection door of the drying kiln comprises an outer handle, an inner handle, a locking point, a transmission shaft, a shaft sleeve, a self-locking nut, a countersunk bolt, an outer flange, an inner flange and a bolt; the transmission shaft penetrates through the inner circle of the shaft sleeve, and the self-locking nut respectively fastens the outer handle and the inner handle at two ends of the transmission shaft; the shaft sleeve penetrates through the outer wall and the inner wall of the detection door leaf frame, and two ends of the shaft sleeve are respectively welded with the outer flange and the inner flange; the locking point is fastened on the inner wall of the detection door frame through the bolt; the outer flange and the inner flange are respectively fastened on the outer wall of the detection door leaf frame and the inner wall of the detection door leaf frame through the countersunk bolts.
2. The safety lock for the detection door of the drying kiln as claimed in claim 1, wherein an opening and closing positioning pin is arranged on the outer flange, and the opening and closing positioning pin has a limiting function on the outer handle.
3. The safety lock for detection door of drying kiln according to claim 1, characterized in that when the inner handle is vertical and completely separated from the locking point, the detection door is completely opened; when the inner handle is in a horizontal state and is completely meshed with the locking point, the detection door is completely closed.
4. The drying kiln detection door safety lock according to claim 1, wherein the locking point is made of stainless steel material, and the locking point is a parabolic upper plane.
5. The safety lock for the detection door of the drying kiln, according to claim 1, is characterized in that the safety lock for the detection door further comprises a fluororubber sealing gasket embedded at two ends of the transmission shaft, the fluororubber sealing gasket and the outer flange are fastened on the outer wall of the detection door leaf frame together by the countersunk head bolt, and the fluororubber sealing gasket and the inner flange are fastened on the inner wall of the detection door leaf frame together by the countersunk head bolt; the specifications of the fluororubber sealing washer are phi 50 multiplied by 6mm and an inner hole phi 20 mm.
6. The safety lock for the detection door of the drying kiln as claimed in claim 5, further comprising a phi 50 flat gasket embedded on the transmission shaft, wherein the phi 50 flat gasket is arranged between the inner handle, the outer handle and the fluororubber sealing gasket.
7. The safety lock for the detection door of the drying kiln according to claim 1, further comprising a phi 23 flat gasket, wherein the self-locking nut locks and fixes the outer handle and the inner handle on the transmission shaft through the phi 23 flat gasket.
8. The safety lock for the detection door of the drying kiln according to claim 1, wherein the outer flange and the inner flange are both made of stainless steel, and have specifications of phi 50 x 5mm and an inner hole phi 27 mm.
9. The safety lock for the detection door of the drying kiln as claimed in claim 1, wherein the shaft sleeve is made of stainless steel, and has a specification of phi 25 x 100mm and a wall thickness of 2 mm.
10. The safety lock for the detection door of the drying kiln according to claim 1, wherein the inner handle and the outer handle are both made of stainless steel and have a thickness of 5 mm; the transmission shaft is made of stainless steel and has the specification of phi 20 multiplied by 150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910979878.7A CN110656827A (en) | 2019-10-15 | 2019-10-15 | Safety lock for detection door of drying kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910979878.7A CN110656827A (en) | 2019-10-15 | 2019-10-15 | Safety lock for detection door of drying kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110656827A true CN110656827A (en) | 2020-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910979878.7A Pending CN110656827A (en) | 2019-10-15 | 2019-10-15 | Safety lock for detection door of drying kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110656827A (en) |
Citations (9)
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|---|---|---|---|---|
| DE4230971A1 (en) * | 1992-09-16 | 1994-03-17 | Sommer Metallbau Stahlbau Gmbh | Door locking device with panic button - incorporates sets of locking discs and bolts |
| CN202324912U (en) * | 2011-11-21 | 2012-07-11 | 上海泰胜风能装备股份有限公司 | Door lock device for wind turbine tower |
| CN202755730U (en) * | 2012-06-25 | 2013-02-27 | 无锡运通涂装设备有限公司 | Open-close device of pedestrian working door of drying room in coating production line |
| CN204186147U (en) * | 2014-08-21 | 2015-03-04 | 镇江康飞机器制造有限公司 | A kind of quick-detachable door locking handle assembly |
| CN206281329U (en) * | 2016-11-18 | 2017-06-27 | 昆山资福机电工程有限公司 | Baking finish drying stove overhauls door |
| CN107780707A (en) * | 2016-08-30 | 2018-03-09 | 浙江盾安机电科技有限公司 | A kind of cold-prevention bridge door handle |
| CN207393025U (en) * | 2017-05-12 | 2018-05-22 | 武汉东风涂装设备有限公司 | Paint spray booth flume Quick-opening overhaul door |
| CN207436846U (en) * | 2017-10-31 | 2018-06-01 | 东风设计研究院有限公司 | A kind of drying oven overhauls door connection structure |
| CN207728118U (en) * | 2017-12-12 | 2018-08-14 | 天津新港船舶重工有限责任公司 | Door lock suitable for mechanical equipment door-plate |
-
2019
- 2019-10-15 CN CN201910979878.7A patent/CN110656827A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4230971A1 (en) * | 1992-09-16 | 1994-03-17 | Sommer Metallbau Stahlbau Gmbh | Door locking device with panic button - incorporates sets of locking discs and bolts |
| CN202324912U (en) * | 2011-11-21 | 2012-07-11 | 上海泰胜风能装备股份有限公司 | Door lock device for wind turbine tower |
| CN202755730U (en) * | 2012-06-25 | 2013-02-27 | 无锡运通涂装设备有限公司 | Open-close device of pedestrian working door of drying room in coating production line |
| CN204186147U (en) * | 2014-08-21 | 2015-03-04 | 镇江康飞机器制造有限公司 | A kind of quick-detachable door locking handle assembly |
| CN107780707A (en) * | 2016-08-30 | 2018-03-09 | 浙江盾安机电科技有限公司 | A kind of cold-prevention bridge door handle |
| CN206281329U (en) * | 2016-11-18 | 2017-06-27 | 昆山资福机电工程有限公司 | Baking finish drying stove overhauls door |
| CN207393025U (en) * | 2017-05-12 | 2018-05-22 | 武汉东风涂装设备有限公司 | Paint spray booth flume Quick-opening overhaul door |
| CN207436846U (en) * | 2017-10-31 | 2018-06-01 | 东风设计研究院有限公司 | A kind of drying oven overhauls door connection structure |
| CN207728118U (en) * | 2017-12-12 | 2018-08-14 | 天津新港船舶重工有限责任公司 | Door lock suitable for mechanical equipment door-plate |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200701 Address after: The 021400 the Inner Mongolia Autonomous Region Hulun Buir Manchuria north port city in the world No. 1007 Gemini tower Applicant after: Manchuria Zhonglin Technology Drying Equipment Co.,Ltd. Address before: The 021400 the Inner Mongolia Autonomous Region Hulun Buir Manchuria north port city in the world No. 1007 Gemini tower Applicant before: Yang Zengyan |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200107 |