CN202925058U - Double-furnace door mechanism - Google Patents
Double-furnace door mechanism Download PDFInfo
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- CN202925058U CN202925058U CN 201220604220 CN201220604220U CN202925058U CN 202925058 U CN202925058 U CN 202925058U CN 201220604220 CN201220604220 CN 201220604220 CN 201220604220 U CN201220604220 U CN 201220604220U CN 202925058 U CN202925058 U CN 202925058U
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Abstract
The utility model discloses a double-furnace door mechanism. The double-furnace door mechanism comprises a supporting mechanism and furnace doors, wherein the supporting mechanism is a quadrilateral framework; the furnace doors are spanned at the two opposite sides of the quadrilateral framework; the supporting mechanism comprises deviators which are arranged at the two ends of each of the two opposite sides spanned by the furnace doors; the furnace doors comprise a first door and a second door; a rolling device and a first fixed point are arranged at each of the lower parts at the two ends of the first door; and a rolling device and a second fixed point are arranged at each of the lower parts at the two ends of the second door. The double-furnace door mechanism further comprises a transmission mechanism, wherein the transmission mechanism comprises a first transmission device and a second transmission device; one end of the first transmission device is connected with the second fixed point, and then connected with the first fixed point after passing through the deviators; and one end of the second transmission device is connected with the first fixed point, and then connected with the second fixed point after passing through the deviators. According to the double-furnace door mechanism disclosed by the utility model, the cycling time of to-be-processed parts is reduced, and the processing efficiency is improved.
Description
Technical field
The utility model relates to a kind of parts of large aluminum alloy equipment for Heating Processing, especially needs is adopted fire door to be positioned at the two blow-on door mechanism of the heat treatment furnace of bottom through carrying out quenching technology after solid solution, ageing treatment.
Background technology
Along with the development of non-ferrous metals industry and the progress of non-ferrous metal utilisation technology, aluminium alloy is unique and superior performance with it, obtains a wide range of applications in the industrial sector such as aviation, automobile, motorcycle, light industry and the industries such as building, five metals, food product pack and medicine equipment.Therefore, the demand of aluminum alloy heat treatment facility is constantly increased, simultaneously, more and more high to the specification of quality of heat treatment furnace product.
Aluminum alloy heat is processed an important component part having developed in the metal heat treatmet field.The heat treated purpose of aluminium alloy, being summed up is mainly to improve intensity and hardness, eliminates the internal stress that produces in the press working process, makes it obtain uniform composition, tissue and performance.
The aluminium alloy heat-treating methods is a lot, and basic treated forms has quenching, timeliness and annealing etc.The latter belongs to softening processing, and purpose is obtain stable and organize uniformly and good working plasticity.The former claims again solution treatment.
As everyone knows, solution heat treatment is the thermal treatment process that improves intensity of aluminum alloy, and its process comprises quenches and timeliness.
The quenching method of aluminium alloy is all generally that the workpiece that will quench is placed in the more uniform process furnace of temperature, it is heated to the quenching temperature of regulation, and is incubated for some time at this temperature, and the tissue of alloy is changed.Some can dissolve in the alloying element (playing strengthening effect) in αsolidsolution, and its solubleness improves and increases along with temperature.Then workpiece is promptly soaked in people's water coolingly, the alloy structure during high temperature at room temperature is fixed up with the form of supersaturated solid solution (rise sclerization), and this is all processes that quenches.
Key problem in technology problem of aluminum alloy quenching is that workpiece quenching transfer time must be very short, to avoid quench front its part and even bulk temperature decline.
Workpiece enters quenching tank from coming out of the stove to interval is called quenching shift time, in the workpiece transfer process, workpiece temperature descends and causes sosoloid generation decomposed, separate out thick loose phase, produce microstructure segregation, thereby reduce the ageing strengthening effect, research according to one's analysis, 5 ° of C of temperature decline after workpiece is come out of the stove can cause strength decreased 20%.Customary quenching switching time is 7s～25s, specifically depending on workpiece size thickness.
The heat treatment furnace that adopts at present, its fire door design and unreasonable, the unidirectional design of opening the door makes its overlong time of opening the door.Like this, the Al-alloy parts in it after Overheating Treatment just needs the long period just can deliver in the quenching tank of subsequent technique.And if the part turnover time is long, be easy to the treatment effect of the thermal treatment process of carrying out before having influence on part.
Therefore, the necessary design of industry a kind of novel heat treatment furnace fire door mechanism overcomes defective of the prior art.
The utility model content
Technical problem to be solved in the utility model is, existing heat treatment furnace fire door design is unreasonable, cause its overlong time of opening the door, thereby affect the thermal treatment part output time in it, the utility model provides a kind of pair of blow-on door mechanism, its oven door opening, closes fast, and the time is short, the Al-alloy parts that reduces in it enters the time of next step other treatment facilities from heat treatment furnace, thereby the supersaturated solid solution of guaranteeing the thermal treatment part is fixed and does not decompose.
The utility model is by the following technical solutions: a kind of pair of blow-on door mechanism, and it comprises supporting mechanism, described supporting mechanism is a quadrilateral frame; And, fire door, described fire door is across two opposite side of described quadrilateral frame;
The two ends on a limit of described supporting mechanism are provided with deviator;
Described fire door comprises Yishanmen and the second fan door, and described Yishanmen its bottom, two ends all is provided with tourelle; Described second fans its bottom, two ends all is provided with tourelle;
Described pair of blow-on door mechanism also includes transmission rig, and described transmission rig comprises the first transmission mechanism and the second transmission mechanism, and described the first transmission mechanism one end and described the second fan door are connected, and are connected with Yishanmen after deviator; Described the second transmission mechanism one end is connected with described Yishanmen, is connected with the second fan door after deviator.
As a kind of preferred version of described in the utility model pair of blow-on door mechanism, wherein: a side of described supporting mechanism is provided with driving mechanism, and described Yishanmen is connected with described driving mechanism.
A kind of preferred version as described in the utility model pair of blow-on door mechanism, wherein: described deviator is divided into the first break-in section and the second break-in section, described the first break-in section is arranged at the right side of described Yishanmen, it comprises the first sprocket wheel and the second sprocket wheel, described the second break-in section is arranged at the left side of described the second fan door, and it comprises the 3rd sprocket wheel and the 4th sprocket wheel.
As a kind of preferred version of described in the utility model pair of blow-on door mechanism, wherein: described the first transmission mechanism and the second transmission mechanism are chain, and described chain matches with described the first sprocket wheel, the second sprocket wheel, the 3rd sprocket wheel and the 4th sprocket wheel; Then the first transmission mechanism that is fixed in the lower end of described Yishanmen is meshed with the first sprocket wheel through the second sprocket wheel and walks around the first sprocket wheel and be connected with described second a fan door lower end; Then the second transmission mechanism that is fixed in described the second fan door lower end is meshed with the 3rd sprocket wheel through the 4th sprocket wheel and walks around the 3rd sprocket wheel and be connected with described Yishanmen.
As a kind of preferred version of described in the utility model pair of blow-on door mechanism, wherein: also be provided with shaft coupling and synchronizing shaft on described supporting mechanism, described shaft coupling is connected with described the 3rd sprocket wheel with synchronizing shaft.
A kind of preferred version as described in the utility model pair of blow-on door mechanism, wherein: described transmission rig also comprises the 3rd transmission mechanism and the 4th transmission mechanism, described the 3rd transmission mechanism is arranged at the other end of the described second fan door relative with the first transmission mechanism, is connected with Yishanmen after deviator; Described the 4th transmission mechanism is arranged at the other end of the described Yishanmen relative with the second transmission mechanism, is connected with the second fan door after deviator.
As a kind of preferred version of described in the utility model pair of blow-on door mechanism, wherein: described driving mechanism is one or more in cylinder, oil cylinder or electric pushrod.
A kind of preferred version as described in the utility model pair of blow-on door mechanism, wherein: described supporting mechanism by fire door across two opposite side on be provided with grooved rail, the tourelle of described fire door bottom matches with grooved rail, makes the described fire door can be along described grooved rail to-and-fro movement.
As a kind of preferred version of described in the utility model pair of blow-on door mechanism, wherein: described supporting mechanism by fire door across the two ends of two opposite side all be provided with deviator.
A kind of preferred version as described in the utility model pair of blow-on door mechanism, wherein: described deviator is divided into the 3rd break-in section and the 4th break-in section, described the 3rd break-in section and described the first corresponding right side that is arranged at described Yishanmen of break-in section, described the 3rd break-in section comprises the 5th sprocket wheel and the 6th sprocket wheel, described the 4th break-in section and described the second corresponding left side that is arranged at described the second fan door of break-in section, described the 4th break-in section comprises the 7th sprocket wheel and the 8th sprocket wheel.
With respect to prior art, the beneficial effects of the utility model are: fire door adopts the double door design, the time that can effectively shorten oven door opening and close, thereby make the thermal treatment part in it, the time still less of using outputs to the outside in body of heater, and then the needed turnover time also reduced it and enter the next one treatment stage.
Further, fire door is arranged on the below of heat treatment furnace, after making the thermal treatment part come out of the stove, can be delivered directly in the device of heat treatment furnace below to carry out subsequent disposal, further, has reduced by the turnover time of pending, has improved processing efficiency.
And this pair of blow-on door mechanism design of the present utility model, especially significant especially for Al-alloy parts, below heat treatment furnace that the utility model relates to, quenching tank is set, Al-alloy parts thermal treatment is complete, two blow-on doors are laterally opened, and Al-alloy parts directly in the quenching tank below the bottom of heat treatment furnace outputs to it, carries out quench cooled.So, fast fire door open the door the time and directly output of products put in place, can effectively reduce the turnover time before pending aluminum alloy part quenches, improve speed of cooling, guaranteeing that supersaturated solid solution is fixed does not decompose.The technical program designs ingenious, simple in structure, good stability, and cost of manufacture is low, is convenient to industry and promotes.
Description of drawings
Fig. 1 is that the master of an embodiment of the present utility model two blow-on door mechanism that relates to looks schematic diagram.
Fig. 2 is the schematic perspective view of the two blow-on door mechanism that relates to of another embodiment of the present utility model.
Fig. 3 is the schematic top plan view of shown in Figure 2 pair of blow-on door mechanism.
Fig. 4 is that the master of shown in Figure 2 pair of blow-on door mechanism looks schematic diagram.
Fig. 5 is the partial schematic diagram of shown in Figure 2 pair of blow-on door mechanism.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, term " interior ", " outward ", " on ", the indicating position such as D score, 'fornt', 'back', " left side ", " right side " or position relationship be based on orientation shown in the drawings or position relationship, it is only the utility model rather than require the utility model with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model for convenience of description.
As shown in Fig. 1～5, in figure, supporting mechanism 1; Supporting leg 101; Shaft coupling 102; Synchronizing shaft 103; Grooved rail 104; Fire door 2; Yishanmen 201; Tourelle 201a; The first point of fixity 201b; The 3rd point of fixity 201c; The second fan door 202; The second point of fixity 202b; The 4th point of fixity 202c; Deviator 3; The first break-in section 301; The first sprocket wheel 301a; The second sprocket wheel 301b; The second break-in section 302; The 3rd sprocket wheel 302a; The 4th sprocket wheel 302b; Transmission rig 4; The first transmission mechanism 401; The second transmission mechanism 402; Driving mechanism 5.
See also shown in Figure 1, an embodiment of the present utility model has disclosed a kind of pair of blow-on door mechanism, it comprises supporting mechanism 1, and described supporting mechanism 1 is tetragonal hollow frame, and its lower end is provided with 101 pairs whole pair of supporting leg blow-on door mechanism and plays the firm effect of supporting.Described supporting mechanism 1 by fire door 2 across two opposite side in wherein the two ends on a limit all be provided with deviator, in this embodiment, this deviator is divided into the first break-in section 301 and the second break-in section 302, described the first break-in section 301 is arranged at the right side of described Yishanmen 201, it comprises the first sprocket wheel 301a and the second sprocket wheel 301b, described the second break-in section 302 is arranged at the left side of described the second fan door 202, and it comprises the 3rd sprocket wheel 302a and the 4th sprocket wheel 302b.
This pair blow-on door mechanism also includes fire door 2, on two opposite side of described fire door 2 across described tetragon hollow frame; This fire door 2 comprises Yishanmen 201 and the second fan door 202, wherein, Yishanmen 201 its bottoms, two ends all are provided with tourelle 201a and the first point of fixity 201b, tourelle 201a fixes by anchor and Yishanmen 201, make have between tourelle 201a and Yishanmen 201 certain for the interval; And second fan door 202 its bottoms, two ends all are provided with tourelle 202a and the second point of fixity 202b, and tourelle 202a fixes by anchor and the second fan door 202, make tourelle 202a and second fan also to have between 202 certain for the interval; In this embodiment, transmission for the ease of transmission rig 4, the first point of fixity 201b is arranged at the lower end of anchor, and the second point of fixity 202b is arranged at the upper end of anchor or be directly fixed on the second lower surface of fanning door 202, so just makes transmission rig 4 to keep at a certain distance away and transmission.
Transmission rig 4 in this pair blow-on door mechanism comprises the first transmission mechanism 401 and the second transmission mechanism 402, described the first transmission mechanism 401 1 ends and described the second point of fixity 202b are connected to a fixed, be connected to a fixed with the first point of fixity 201b after deviator, and described the second transmission mechanism 402 1 ends are connected with described the first point of fixity 201b, are connected with the second point of fixity 202b after deviator.In this embodiment, the first transmission mechanism 401 and the second transmission mechanism 402 are chain.
When external force drives Yishanmen 201 to the right, one end is fixed in the first transmission mechanism 401(chain of the first point of fixity 201b under Yishanmen 201) owing to being activated power, also begin to affect Yishanmen 201 to move along grooved rail 104 to the right, be fixed in the second point of fixity 202b and extend through second sprocket wheel 301b engagement the first sprocket wheel 301b, this moment is owing to being meshed again to Left Drive with the second sprocket wheel 301b through the second sprocket wheel 301b, so changed the transmission direction of motivating force, become interlock left; Simultaneously, an end is fixed in the second transmission mechanism 402 of the first point of fixity 201b, for driving, pulls the second fan door 202 to be moved to the left through the break-in that is meshed with the 3rd sprocket wheel 302a after the 4th sprocket wheel 302b left.So, just make Yishanmen 201 and the second fan door 202 opposing movements simultaneously, to open fire door.
In like manner, if close fire door, only need external force to drive Yishanmen 201 left and get final product.
As shown in Fig. 2～5, the description that Fig. 2～5 are detailed the mode of two blow-on door mechanism preferred embodiment.Referring to Fig. 2, in this embodiment, described supporting mechanism by fire door 2 across of two opposite side face and be provided with driving mechanism 5 on the limit.This driving mechanism 5 is one or more in cylinder, oil cylinder or electric pushrod, so that the easy fire door 2 that opens or closes more rapidly.
In addition, also be provided with shaft coupling 102 and synchronizing shaft 103 on described supporting mechanism, described shaft coupling 102 and synchronizing shaft 103 are connected with described the 3rd sprocket wheel 302a between the 3rd sprocket wheel 302a.Be provided with shaft coupling 102 and synchronizing shaft 103 on supporting mechanism, better synchronized drive fire door 2.
And, in this embodiment, described Yishanmen 201 its bottoms, two ends also all be provided with the 3rd point of fixity 201c and, described second fan door 202 its bottoms, two ends also all are provided with the 4th point of fixity 202c.
At this moment, described the first transmission mechanism 401(chain) end and described the second point of fixity 202b are connected to a fixed, be connected to a fixed with the first point of fixity 201b after deviator 3, and described the second transmission mechanism 402 1 ends are connected with described the 3rd point of fixity 201c, are connected with the 4th point of fixity 202c after deviator.
When driving mechanism 5, when driving Yishanmen 201 to the right, one end is fixed in the first transmission mechanism 401(chain of the first point of fixity 201b under Yishanmen 201) due to the motivating force that is subject to the right, also begin to affect Yishanmen 201 to move along grooved rail 104 to the right, then through the second sprocket wheel 301b, mesh the first sprocket wheel 301b extension and be fixed in the second point of fixity 202b, this moment is owing to being meshed again to Left Drive with the second sprocket wheel 301b through the second sprocket wheel 301b, so changed the transmission direction of motivating force, become interlock left; Simultaneously, an end is fixed in the 3rd point of fixity 201c and the other end is fixed in the second transmission mechanism 402 of the 4th point of fixity 202c, is to drive left through the break-in that is meshed with the 3rd sprocket wheel 302a after the 4th sprocket wheel 302b, pulls the second fan door 202 to be moved to the left.So, just make Yishanmen 201 and the second fan door 202 opposing movements simultaneously, to open fire door 2.
When closing fire door 2, driving mechanism 5 drives Yishanmen 201 left, one end is fixed in the first transmission mechanism 401(chain of the first point of fixity 201b under Yishanmen 201) due to the motivating force that is subject to left, also beginning to promote Yishanmen 201 moves along grooved rail 104 left, then through the second sprocket wheel 301b, mesh the first sprocket wheel 301b extension and be fixed in the second point of fixity 202b, this moment due to through the second sprocket wheel 301b and with the second sprocket wheel 301b transmission to the right that is meshed again, so changed the transmission direction of motivating force, become interlock to the right; Simultaneously, an end is fixed in the 3rd point of fixity 201c and the other end is fixed in the second transmission mechanism 402 of the 4th point of fixity 202c, is to drive to the right through the break-in that is meshed with the 3rd sprocket wheel 302a after the 4th sprocket wheel 302b, pulls the second fan door 202 to move right.Like this, realized that just Yishanmen 201 and the second fan door 202 relatively move simultaneously, to close fire door 2.
In sum, when fire door 2 need to be opened, driving mechanism 5 actions, driving mechanism 5 directly is connected with Yishanmen 201, these Yishanmen 201 interlocks, fire door 2 is connected by chain, commutate by sprocket wheel, the second fan door 202 also follows by action, and Yishanmen 201 is opposite mutually with the second fan door 202 direction of motion, outwards open simultaneously, inwardly close simultaneously.Fire door 2 two ends respectively have a chain up and down, amount to four chains, are positioned at two chains of upper end when fire door 2 is closed, connect fire door 2, make it inwardly to close simultaneously.Be positioned at two chains of lower end when fire door 2 is opened, connect two fan fire doors 2, make it outwards to open simultaneously.Sprocket wheel, shaft coupling 102 and synchronizing shaft 103 actings in conjunction make both sides chain action synchronous, and fire door 2 is stable action in the moving process that opens or closes.
In the actual production practice, for satisfying aluminum alloy quenching very short special requirement transfer time, the fire door of aluminium alloy quenching furnace is located at below body of heater, the unlatching of fire door move to workpiece come out of the stove and fast transfer people water extraction supplied spatial channel easily, thereby satisfy the requirement of aluminum alloy quenching fast transfer.
The above is only better embodiment of the present utility model; protection domain of the present utility model is not limited with above-mentioned embodiment; as long as the equivalence that those of ordinary skills do according to the utility model disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (10)
1. two blow-on door mechanism, it comprises supporting mechanism (1), described supporting mechanism (1) is a quadrilateral frame; And, fire door (2), described fire door (2) is across two opposite side of described quadrilateral frame;
It is characterized in that:
The two ends on a limit of described supporting mechanism (1) are provided with deviator (3);
Described fire door (2) comprises Yishanmen (201) and the second fan door (202), and described Yishanmen (201) its bottom, two ends all is provided with tourelle (201a); Described second fans (202) its bottom, two ends all is provided with tourelle (201a);
Described pair of blow-on door (2) mechanism also includes transmission rig (4), described transmission rig (4) comprises the first transmission mechanism (401) and the second transmission mechanism (402), described the first transmission mechanism (401) one ends are connected with described the second fan door (202), are connected with Yishanmen (201) after deviator (3); Described the second transmission mechanism (402) one ends are connected with described Yishanmen (201), are connected with the second fan door (202) after deviator (3).
2. as claimed in claim 1 pair of blow-on door mechanism, it is characterized in that: a side of described supporting mechanism (1) is provided with driving mechanism (5), and described Yishanmen (201) is connected with described driving mechanism (5).
3. as claimed in claim 1 pair of blow-on door mechanism, it is characterized in that: described deviator (3) is divided into the first break-in section (301) and the second break-in section (302), described the first break-in section (301) is arranged at the right side of described Yishanmen (201), it comprises the first sprocket wheel (301a) and the second sprocket wheel (301b), described the second break-in section (302) is arranged at the left side of described the second fan door (202), and it comprises the 3rd sprocket wheel (302a) and the 4th sprocket wheel (302b).
4. as claimed in claim 1 pair of blow-on door mechanism, it is characterized in that: described the first transmission mechanism (401) and the second transmission mechanism (402) are chain, and described chain matches with described the first sprocket wheel (301a), the second sprocket wheel (301b), the 3rd sprocket wheel (302a) and the 4th sprocket wheel (302b); The first transmission mechanism (401) that is fixed in the lower end of described Yishanmen (201) then is meshed with the first sprocket wheel (301a) through the second sprocket wheel (301b) and walks around the first sprocket wheel (301a) and be connected with described second fan door (a 202) lower end; Then the second transmission mechanism (402) that is fixed in described second fan door (202) lower end is meshed with the 3rd sprocket wheel (302a) through the 4th sprocket wheel (302b) and walks around the 3rd sprocket wheel (302a) and be connected with described Yishanmen (201).
5. as claimed in claim 1 pair of blow-on door mechanism, it is characterized in that: also be provided with shaft coupling (102) and synchronizing shaft (103) on described supporting mechanism (1), described shaft coupling (102) is connected with described the 3rd sprocket wheel (302a) with synchronizing shaft (103).
6. as claimed in claim 1 pair of blow-on door mechanism, it is characterized in that: described transmission rig (4) also comprises the 3rd transmission mechanism and the 4th transmission mechanism, described the 3rd transmission mechanism is arranged at the other end of the described second fan door (202) relative with the first transmission mechanism (401), is connected with Yishanmen (201) after deviator (3); Described the 4th transmission mechanism is arranged at the other end of the described Yishanmen (201) relative with the second transmission mechanism (402), is connected with the second fan door (202) after deviator (3).
7. as claimed in claim 1 or 2 pair of blow-on door mechanism is characterized in that: described driving mechanism (5) is one or more in cylinder, oil cylinder or electric pushrod.
8. as claimed in claim 1 pair of blow-on door mechanism, it is characterized in that: described supporting mechanism (1) by fire door (2) across two opposite side on be provided with grooved rail (104), the tourelle (201a) of described fire door (2) bottom matches with grooved rail (104), makes the described fire door (2) can be along described grooved rail (104) to-and-fro movement.
9. as claimed in claim 1 pair of blow-on door mechanism is characterized in that: described supporting mechanism (1) by fire door (2) across the two ends of two opposite side all be provided with deviator (3).
10. as claimed in claim 9 pair of blow-on door mechanism, it is characterized in that: described deviator (3) is divided into the 3rd break-in section and the 4th break-in section, described the 3rd break-in section and described the first corresponding right side that is arranged at described Yishanmen (201) of break-in section (301), described the 3rd break-in section comprises the 5th sprocket wheel and the 6th sprocket wheel, described the 4th break-in section left side that be arranged at described second fan door (202) corresponding with described the second break-in section (302), described the 4th break-in section comprises the 7th sprocket wheel and the 8th sprocket wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220604220 CN202925058U (en) | 2012-11-15 | 2012-11-15 | Double-furnace door mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220604220 CN202925058U (en) | 2012-11-15 | 2012-11-15 | Double-furnace door mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202925058U true CN202925058U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220604220 Expired - Fee Related CN202925058U (en) | 2012-11-15 | 2012-11-15 | Double-furnace door mechanism |
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| CN (1) | CN202925058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980405A (en) * | 2012-11-15 | 2013-03-20 | 江苏丰东热技术股份有限公司 | Double-open furnace door mechanism |
-
2012
- 2012-11-15 CN CN 201220604220 patent/CN202925058U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980405A (en) * | 2012-11-15 | 2013-03-20 | 江苏丰东热技术股份有限公司 | Double-open furnace door mechanism |
| CN102980405B (en) * | 2012-11-15 | 2014-11-05 | 江苏丰东热技术股份有限公司 | Double-open furnace door mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170323 Address after: Nanxiang Road 224100 Jiangsu province Yancheng City Dafeng Economic Development Zone No. 333 Patentee after: Jiangsu Dong Feng Technology Co., Ltd. Address before: Nanxiang Road in Dafeng City, Jiangsu province 224100 Yancheng City economic and Technological Development Zone No. 333 Patentee before: Jiangsu Fengdong Thermal Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20171115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |