CN109404594B - One-way split type stop door - Google Patents
One-way split type stop door Download PDFInfo
- Publication number
- CN109404594B CN109404594B CN201811567701.8A CN201811567701A CN109404594B CN 109404594 B CN109404594 B CN 109404594B CN 201811567701 A CN201811567701 A CN 201811567701A CN 109404594 B CN109404594 B CN 109404594B
- Authority
- CN
- China
- Prior art keywords
- wall
- actuating arm
- stop door
- pipeline
- stop
- 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.)
- Active
Links
- 125000003003 spiro group Chemical group 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2007—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
Abstract
The invention discloses a one-way split stop door in the technical field of stop doors, which comprises a pipeline, wherein a support frame is welded on the left and right sides of the top wall of the pipeline, a first electric push rod is connected to the top wall of the support frame in a screwed mode, a first connecting pin rod is connected to the rear end of the first electric push rod in a screwed mode, a first connecting sleeve is connected to the rear end of the first connecting pin rod in a screwed mode, a first executing arm is connected to the rear end of the first connecting sleeve in a screwed mode, a rotary drum is sleeved on the outer wall of a rotary shaft of an eccentric wheel, the outer wall of the rotary drum is welded with the eccentric wheel, first balls are uniformly clamped on the circumference of the outer wall of the rotary shaft of the eccentric wheel, mounting holes are uniformly formed in the front and rear circumferences of the inner wall of the rotary drum, and second balls are clamped in the inner cavity of the mounting holes.
Description
Technical Field
The invention discloses a one-way split type stop door, and particularly relates to the technical field of stop doors.
Background
The stop gate is one of valves, and the gate valve has the advantages that flow resistance is small, opening and closing forces are small, medium can flow positively and negatively, and has the advantages of complex structure, large size, easy abrasion in sealing, simple structure, good sealing performance, convenient manufacture and maintenance, large flow resistance, large opening and closing forces, and large motor is needed for opening and closing the stop gate, and then the stop gate is mostly controlled to be opened and closed by adopting a travel switch, but the conventional stop gate travel switch has the advantages of long service life and easy adhesion of movable contacts of fixed contacts.
Disclosure of Invention
The invention aims to provide a one-way split type stop door, which aims to solve the problems that the conventional stop door travel switch provided in the background art is low in service life and the movable contact of a fixed contact is easy to adhere.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a one-way split stop door, includes the pipeline, the roof of pipeline has all welded the support frame about, the roof spiro union of support frame has first electric putter, the rear end spiro union of first electric putter has first connecting pin pole, the rear end spiro union of first connecting pin pole has first connecting sleeve, the rear end spiro union of first connecting sleeve has first actuating arm, the roof of pipeline has all the joint to stop door pivot about, the bottom of stop door pivot runs through the upper and lower outer wall of pipeline, the outer wall top and the one end joint of first actuating arm of pivot, two sets of stop door frame have all been welded to the looks wall of pivot, the rear wall welding of stop door frame has the stop door plant, the stop door is located the inner chamber of pipeline, the left and right outer wall of pipeline all has the supporting seat through the bearing frame hinge, the inner chamber joint of supporting seat has the second electric putter, the top of second electric putter has first actuating arm, the second actuating arm has the second actuating arm, the outer wall pin joint of second actuating arm has the top of second actuating arm, the eccentric shaft has the outer wall pin joint to have the top of second actuating arm, the eccentric shaft has the eccentric shaft to have the outer wall joint, the eccentric shaft has the eccentric shaft joint to carry out the top of the eccentric shaft, the eccentric shaft has, one end of the eccentric wheel contacts with the contact end of the travel switch, a first ball is uniformly clamped on the circumference of the outer wall of the rotating shaft of the eccentric wheel, the first ball is located in an inner cavity of the rotating drum, mounting holes are uniformly formed in the front and rear circumferences of the inner wall of the rotating drum, a second ball is clamped on the inner cavity of the mounting holes, the first ball is located between two groups of second balls, a connecting spring is welded at one end of the second ball, and one end of the connecting spring is welded with the bottom wall of the inner cavity of the mounting holes.
Preferably, limiting plates are screwed on the upper and lower sides of the front wall of the inner cavity of the pipeline.
Preferably, the front wall of the stop door panel is in contact with the rear wall of the limiting plate.
Preferably, the joint of the stop door rotating shaft and the stop door frame is welded with a reinforcing rib.
Preferably, the depth of the mounting hole is greater than the outer diameter of the second ball.
Compared with the prior art, the invention has the beneficial effects that:
1) The device is provided with a first connecting pin rod, a first connecting sleeve and a first executing arm, the first executing arm drives a stop door rotating shaft, a stop door frame and a stop door plate to rotate by starting the first electric push rod to extend, the length of the first connecting rod in the first connecting sleeve is adjusted by rotating the first connecting rod, the rotation amplitude of the stop door plate is realized, and meanwhile, the load of the first electric push rod is reduced by driving the first executing arm;
2) The eccentric wheel is arranged on the eccentric rotating shaft to control the opening and closing of the limit switch, when the eccentric wheel is closed with the travel switch, the limit switch is closed, and when the eccentric wheel is separated from the travel switch, the limit switch is opened, and the circuit is opened, so that the opening and closing of the baffle door can be accurately controlled, the risk of adhesion of the movable contact of the fixed contact on the limit switch is reduced, and the adhesion resistance is prevented from being reduced;
3) This device sets up the second ball and the connecting spring at the first ball of eccentric wheel pivot outer wall and rotary drum inner wall mounting hole, when eccentric wheel and travel switch contact, when the eccentric wheel pivot continued to rotate the eccentric wheel that drives eccentric wheel pivot outer wall rotated, first ball rotated and made the second ball atress get into the mounting hole, the sleeve is not rotating along with eccentric wheel pivot this moment, avoid travel switch atress too big, lead to travel switch impaired, improve travel switch life, this device has reduced the risk that the movable contact of fixed contact takes place to adhere, can prevent that the adhesion from falling, the life of device has been improved, and a structure is simple, low cost.
Drawings
FIG. 1 is a schematic front cross-sectional view of a stop gate of the present invention;
FIG. 2 is a schematic top view of the stop gate of the present invention;
FIG. 3 is a schematic left-hand cross-sectional view of the stop gate of the present invention;
FIG. 4 is a schematic left-hand view of the eccentric of the present invention;
FIG. 5 is a schematic view of a cross-section of the eccentric shaft of the present invention.
In the figure: the device comprises a pipeline 1, a supporting frame 2, a first electric push rod 3, a first connecting pin rod 4, a first connecting rod 5, a first connecting sleeve 6, a first actuating arm 7, a stop door rotating shaft 8, a stop door frame 9, a stop door plate 10, a supporting seat 11, a second electric push rod 12, a second connecting pin rod 13, a second connecting rod 14, a second connecting sleeve 15, a second actuating arm 16, an actuating rod 17, a third actuating arm 18, an eccentric wheel rotating shaft 19, a supporting plate 20, a travel switch 21, a rotary drum 22, an eccentric wheel 23, first balls 24, a 25 mounting hole 26, second balls 27 and a connecting spring 27.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a unidirectional split type stop gate, which reduces the risk of adhesion of a movable contact of a fixed contact, can prevent the reduction of adhesion resistance, referring to figures 1-3, and comprises a pipeline 1, wherein a support frame 2 is welded at the left and right of the top wall of the pipeline 1, a first electric push rod 3 is screwed at the top wall of the support frame 2, a first connecting pin 4 is screwed at the rear end of the first electric push rod 3, a first connecting rod 5 is screwed at the rear end of the first connecting pin 4, a first connecting sleeve 6 is screwed at the rear end of the first connecting rod 5, the length of the first connecting rod 5 in the first connecting sleeve 6 is adjusted by screwing the first connecting rod 5, so as to adjust the rotation angle of a rotating shaft 8, a first actuating arm 7 is screwed at the rear end of the first connecting sleeve 6, a stop gate rotating shaft 8 is clamped at the left and right rear parts of the top wall of the pipeline 1, the bottom end of the stop gate rotating shaft 8 penetrates through the upper outer wall and the lower outer wall of the pipeline 1, the top end of the outer wall of the rotating shaft 8 is clamped with one end of the first executing arm 7, the first electric push rod 3 is started to extend to move the electric first connecting pin rod 4, the movement of the first connecting pin rod 4 drives the first connecting rod 5 and the first connecting sleeve 6 to move, the first connecting sleeve 6 enables the first executing arm 7 to rotate around the rotating shaft 8, meanwhile, the first executing arm 7 drives the rotating shaft 8 to rotate, the load of the first electric push rod 3 is reduced through a lever principle, the opposite walls of the two groups of rotating shafts 8 are welded with stop gate frames 9, the rear wall of each stop gate frame 9 is welded with a stop gate plate 10, the stop gate plate 10 is positioned in an inner cavity of a pipeline 1, the left and right outer walls of the pipeline 1 are hinged with supporting seats 11 through bearing seats, the inner cavity at the top end of each supporting seat 11 is clamped with a second electric push rod 12, the top end of each second electric push rod 12 is in threaded connection with a second connecting pin rod 13, the top end of the second connecting pin rod 13 is pin-connected with a second connecting rod 14, the top end of the second connecting rod 14 is in threaded connection with a second connecting sleeve 15, the upper and lower parts of the left and right outer walls of the pipeline 1 are respectively hinged with a second actuating arm 16 and a third actuating arm 18 through bearing seats, one end of the second connecting sleeve 15 is pin-connected with one end of the second actuating arm 16, one end of the second actuating arm 16 is pin-connected with one end of the third actuating arm 18, an actuating rod 17 is pin-connected between one end of the second actuating arm 16 and one end of the third actuating arm 18, referring to fig. 3-5, the outer wall of the bearing seat connection part of the third actuating arm 18 is welded with an eccentric wheel rotating shaft 19, the outer wall of the eccentric wheel rotating shaft 19 is sleeved with a rotary drum 22, the outer wall of the rotary drum 22 is welded with an eccentric wheel 23, when the second actuating arm 16 rotates around the bearing seat, the second actuating arm 16 drives the eccentric wheel rotating shaft 19 to rotate, referring to fig. 2, the lower parts of the left and right outer walls of the pipeline 1 are welded with a supporting plate 20, the outer ends of the top wall of the supporting plate 20 are in threaded connection with a travel switch 21, one end of the eccentric wheel 23 is contacted with the contact end of the travel switch 21, the circumference of the outer wall of the eccentric wheel rotating shaft 19 is uniformly clamped with a first ball 24, the first ball 24 is positioned in the inner cavity of the rotary drum 22, the circumference of the front and rear of the inner wall of the rotary drum 22 is uniformly provided with a mounting hole 25, the inner cavity of the mounting hole 25 is clamped with a second ball 26, the first ball 24 is positioned between two groups of second balls 26, when the eccentric wheel rotating shaft 19 is prevented from rotating, the first ball 24 is separated from the second ball 26, the rotary drum 22 does not rotate along with the eccentric rotating shaft 19, one end of the second ball 26 is welded with a connecting spring 27, one end of the connecting spring 27 is welded with the inner cavity bottom wall of the mounting hole 25, when the second ball 26 is not stressed, the connecting spring 27 is stretched, the connecting spring 27 drives the second ball 26 to move towards the opening of the mounting hole 25, and the front wall of the inner cavity of the pipeline 1 is screwed with a limiting plate up and down, the front wall of stop door plant 10 and the back wall contact of limiting plate avoid stop door plant 10 to rotate the transition, avoid the inner chamber of pipeline 1 unable closure, the junction welding of stop door pivot 8 and stop door frame 9 has the strengthening rib, improve the joint strength between stop door pivot 8 and the stop door frame 9, avoid using for a long time and lead to the junction fracture of the surplus stop door frame 9 of stop door pivot 8, improve the life of this device, please refer to fig. 5, the degree of depth of mounting hole 25 is greater than the external diameter of second ball 26, make the inner chamber of second ball 26 accessible mounting hole 25 completely, reduce the frictional force between first ball 24 and the second ball 26.
Working principle: the power supply of the first electric push rod 3 in the device is respectively connected with two groups of travel switches 21, the extension and shortening of the first electric push rod 3 are realized by respectively starting the two groups of travel switches 21, the second electric push rod 12 and the travel switch 21 in the device are respectively connected with the power supply, as shown in figure 2, the extension of the second electric push rod 12 is started, the extension of the second electric push rod 12 drives the extension of the second connecting pin rod 13, the extension of the second connecting pin rod 13 drives the second connecting rod 14 and the second connecting sleeve 15 to move upwards left, the second connecting rod 14 and the second connecting sleeve 15 move upwards left to drive the second actuating arm 16 to rotate around a bearing seat, the rotation of the second actuating arm 16 drives one end of the actuating arm 17 to move downwards right, the one end of the actuating arm 17 moves downwards right to drive the third actuating arm 18 to rotate around the bearing seat, as shown in figure 4, the rotation of the third actuating arm 18 drives the eccentric wheel rotating shaft 19 on the outer wall of the bearing to rotate, the rotation of the eccentric wheel rotating shaft 19 drives the rotating drum 22 and the eccentric wheel 23 to rotate, as shown in fig. 2, one end of the eccentric wheel 23 contacts with the contact point of the travel switch 21, the travel switch 21 is started, the first electric push rod 3 is connected with a power supply, as shown in fig. 5, when the second electric push rod 12 is not stopped in time, the third actuating arm 18 and the eccentric wheel rotating shaft 19 continue to rotate, as shown in fig. 5, the eccentric wheel rotating shaft 19 rotates to drive the first ball 24 to rotate around the axis of the eccentric wheel rotating shaft 19, the first ball 24 presses the second ball 26, as the eccentric wheel 23 is stressed, the first ball 24 can not drive the second ball 26 to rotate around the circle center of the rotating drum 22, the second ball 26 moves towards the bottom wall of the inner cavity of the mounting hole 25, the connecting spring 27 is compressed under force, so that the eccentric wheel 23 does not rotate along with the eccentric wheel rotating shaft 19, as shown in fig. 2, the extension of the first electric push rod 3 drives the extension of the first connecting pin rod 4, the extension of the first connecting pin rod 4 drives the first connecting rod 5 and the first connecting sleeve 6 to move upwards left, the first connecting rod 5 and the first connecting sleeve 6 drive the first actuating arm 7 to rotate around the stop door rotating shaft 8 when moving upwards left, the first actuating arm 7 drives the stop door rotating shaft 8 to rotate when rotating, and as shown in fig. 1, the rotation of the stop door rotating shaft 8 drives the stop door frame 9 and the stop door plate 10 to rotate around the stop door rotating shaft 8, so that the closing and opening of the inner cavity of the pipeline 1 are realized.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a one-way split type stop gate, includes pipeline (1), its characterized in that: the utility model discloses a pipeline (1) top wall all welds support frame (2) about, the top wall spiro union of support frame (2) has first electric putter (3), the rear end spiro union of first electric putter (3) has first connecting pin (4), the rear end pin of first connecting pin (4) has first connecting rod (5), the rear end spiro union of first connecting rod (5) has first connecting sleeve (6), the rear end pin of first connecting sleeve (6) has first actuating arm (7), the top wall of pipeline (1) all joints in the rear portion about have stop door pivot (8), the bottom of stop door pivot (8) runs through the upper and lower outer wall of pipeline (1), the outer wall top and the one end joint of first actuating arm (7) of pivot (8), two sets of looks wall welding of pivot (8) have stop door frame (9), the rear wall welding of stop door frame (10), the rear wall welding of first connecting sleeve (6) has stop door (10), the top end of pipeline (1) has stop door (10) is located the top of second electric putter (12) of second support seat (12), the top end of the second connecting pin rod (13) is connected with a second connecting rod (14) in a pin joint mode, the top end of the second connecting rod (14) is connected with a second connecting sleeve (15) in a screwed mode, the upper and lower parts of the left outer wall and the right outer wall of the pipeline (1) are respectively hinged with a second actuating arm (16) and a third actuating arm (18) through bearing seats, one end of the second connecting sleeve (15) is connected with one end of the second actuating arm (16) in a pin joint mode, one end of the second actuating arm (16) is connected with one end of the third actuating arm (18) in a pin joint mode, an actuating rod (17) is connected with one end of the third actuating arm (18) in a pin joint mode, an eccentric wheel rotating shaft (19) is welded on the outer wall of the bearing seats of the third actuating arm (18), a rotary drum (22) is sleeved on the outer wall of the eccentric wheel rotating shaft (19), supporting plates (20) are welded on the outer walls of the rotary drum (22), travel switches (21) are welded on the outer ends of the top walls of the supporting plates (20) respectively, one end of the eccentric wheels (23) is connected with one end of the travel switches (21), one end of the eccentric wheel (23) is connected with one end of the travel switches (21), one end of the first inner wall (24) is connected with one end of the rotary drum (24), one end of the first inner wall (24) is connected with one end of the inner wall (24), and the inner wall (24) is uniformly connected with one end of the inner wall (24), the inner cavity joint of mounting hole (25) has second ball (26), first ball (24) are located between two sets of second balls (26), the one end welding of second ball (26) has connecting spring (27), the one end of connecting spring (27) and the inner cavity diapire welding of mounting hole (25).
2. A one-way split stop gate according to claim 1, wherein: limiting plates are connected to the upper and lower portions of the front wall of the inner cavity of the pipeline (1) in a threaded mode.
3. A one-way split stop gate according to claim 2, wherein: the front wall of the stop door plate (10) is contacted with the rear wall of the limiting plate.
4. A one-way split stop gate according to claim 1, wherein: the joint of the stop door rotating shaft (8) and the stop door frame (9) is welded with a reinforcing rib.
5. A one-way split stop gate according to claim 1, wherein: the depth of the mounting hole (25) is larger than the outer diameter of the second ball (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811567701.8A CN109404594B (en) | 2018-12-21 | 2018-12-21 | One-way split type stop door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811567701.8A CN109404594B (en) | 2018-12-21 | 2018-12-21 | One-way split type stop door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109404594A CN109404594A (en) | 2019-03-01 |
| CN109404594B true CN109404594B (en) | 2024-02-20 |
Family
ID=65460885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811567701.8A Active CN109404594B (en) | 2018-12-21 | 2018-12-21 | One-way split type stop door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109404594B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB442321A (en) * | 1935-01-08 | 1936-02-06 | British Thermostat Co Ltd | Improvements in or relating to motor operated valves |
| US3720295A (en) * | 1971-05-19 | 1973-03-13 | Balz H Gmbh Fa | Power positioning apparatus with force dependent shut-off |
| CN101015108A (en) * | 2004-04-30 | 2007-08-08 | 卡梅伦国际公司 | Electric control and supply system |
| CN200946420Y (en) * | 2006-09-15 | 2007-09-12 | 夏聪燎 | Automatic door-closing hinge |
| CN106057510A (en) * | 2016-07-27 | 2016-10-26 | 无锡市华通电力设备有限公司 | Limit switch with eccentric wheels |
| CN209278598U (en) * | 2018-12-21 | 2019-08-20 | 无锡市华通电力设备有限公司 | A kind of unidirectional opposite opened cut-off gate |
-
2018
- 2018-12-21 CN CN201811567701.8A patent/CN109404594B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB442321A (en) * | 1935-01-08 | 1936-02-06 | British Thermostat Co Ltd | Improvements in or relating to motor operated valves |
| US3720295A (en) * | 1971-05-19 | 1973-03-13 | Balz H Gmbh Fa | Power positioning apparatus with force dependent shut-off |
| CN101015108A (en) * | 2004-04-30 | 2007-08-08 | 卡梅伦国际公司 | Electric control and supply system |
| CN200946420Y (en) * | 2006-09-15 | 2007-09-12 | 夏聪燎 | Automatic door-closing hinge |
| CN106057510A (en) * | 2016-07-27 | 2016-10-26 | 无锡市华通电力设备有限公司 | Limit switch with eccentric wheels |
| CN209278598U (en) * | 2018-12-21 | 2019-08-20 | 无锡市华通电力设备有限公司 | A kind of unidirectional opposite opened cut-off gate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109404594A (en) | 2019-03-01 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 214000 zone a, Yangjian Town Industrial Park, Xishan District, Wuxi City, Jiangsu Province (No. 120, Jiaoyang Road) Applicant after: WUXI HUATONG ELECTRIC POWER EQUIPMENT Co.,Ltd. Address before: No.1, Chunjiang East Road, Dongting Industrial Park, Xishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Applicant before: WUXI HUATONG ELECTRIC POWER EQUIPMENT Co.,Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |