CN211038280U - Translation door core - Google Patents
Translation door core Download PDFInfo
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- CN211038280U CN211038280U CN201920787497.4U CN201920787497U CN211038280U CN 211038280 U CN211038280 U CN 211038280U CN 201920787497 U CN201920787497 U CN 201920787497U CN 211038280 U CN211038280 U CN 211038280U
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- translation door
- guide rail
- driving wheel
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Abstract
The utility model provides a translation door movement, which comprises a driving device, a driven device, an energy storage device, an upper aluminum support supporting cylindrical guide rail backer and a lower aluminum support supporting cylindrical guide rail backer which are arranged on a movement base; the upper aluminum support supporting cylindrical guide rail backer and the lower aluminum support supporting cylindrical guide rail backer are both fixed with aluminum support supporting cylindrical guide rails; the driving device provides power for the driven device and simultaneously stores energy for the energy storage device. The utility model discloses make the floodgate machine of this translation door core of configuration possess simple structure under the condition that satisfies current floodgate machine use operating mode, the fault rate is low, prevents pressing from both sides the function, and the scour protection function loses electric fault self-resuming function, low noise anti-shake function.
Description
Technical Field
The utility model relates to a quick access field specifically, relates to a translation door core.
Background
The automatic ticket checking gate for the sliding door is a control device for a pedestrian passage. The entrance guard device can be placed at the entrance and exit positions of a plurality of different places, is widely applied to entrance guard places such as rail transit, tourist attractions, venues and factories, has the important function of preventing passengers without tickets from entering and ensuring normal passengers to smoothly pass, can ensure that people flow through the passage in order, has the characteristics of quick opening, safety, high efficiency and the like, and is the most important link in an automatic ticket checking system. Because of adopting the multi-connecting-rod structure of the motor crank, the traditional translation door has a complex structure, and a person clamping event often occurs, so that certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The defect to among the prior art, the utility model aims at providing a translation door core, the utility model discloses make the floodgate machine of this translation door core of configuration possess simple structure under the condition that satisfies current floodgate machine service condition, the fault rate is low, prevents pressing from both sides the function, the scour protection function, the power-off trouble self recovery function, the low noise anti-shake function.
According to one aspect of the utility model, a translation door movement is provided, which comprises a driving device (1), a driven device (2), an energy storage device (3), an upper aluminum support supporting cylindrical guide rail backer (5) and a lower aluminum support supporting cylindrical guide rail backer (6) which are arranged on a movement base (4); an aluminum support cylindrical guide rail (7) is fixed on each of the upper aluminum support cylindrical guide rail backer (5) and the lower aluminum support cylindrical guide rail backer (6);
the driven device (2) comprises linear bearings (21), Z-shaped supports (22), translation doors (23), glass clamping pieces (24) and linear guide rails (25), wherein the number of the linear bearings (21) is 2, the linear bearings respectively horizontally move on the aluminum support supporting cylindrical guide rails (7) at the upper end and the lower end, the upper end and the lower end of each Z-shaped support (22) are respectively fixed with the linear bearings (21), the linear guide rails (25) are fixed on the Z-shaped supports (22), the translation doors (23) are fixed on the Z-shaped supports (22) through the glass clamping pieces (24), the gravity centers of the translation doors fall in the middles of the aluminum support supporting cylindrical guide rails (7), and the translation doors (23) axially and horizontally move linearly on the aluminum support supporting cylindrical guide rails (7); the aluminum support supporting cylindrical guide rail (7) plays a transverse anti-shaking role on the translation door (23);
the driving device (1) comprises a closed-loop stepping motor (11), a driving wheel (12), a trunnion slide block connecting rod (13) and a slide block (14), wherein the closed-loop stepping motor (11) and the driving wheel (12) are fixedly connected and are respectively arranged on two side surfaces of a machine core base (4), the trunnion slide block connecting rod (13) is respectively fixed with the driving wheel (12) and the slide block (14), and the slide block (14) moves up and down in a linear guide rail (25);
energy storage device (3) are including extension spring (31) and mild steel wire (32), the both ends of mild steel wire (32) are connected with extension spring (31) and drive wheel (12) respectively, the other end of extension spring (31) is fixed on core base (4) through the fixed column.
Preferably, the width of the lower aluminum-support supporting cylindrical guide rail support (6) is larger than that of the upper aluminum-support supporting cylindrical guide rail support (5).
Preferably, the closed-loop stepping motor (11) is an adjustable torque type closed-loop stepping motor capable of freely setting torque. Adjustable torque formula closed loop step motor's moment of torsion can set up for it can be when driving entire system, with the rich surplus modulation minimum of moment of torsion, the in-process that the translation door was closed touches people or luggage, and when the moment of torsion exceeded rich surplus, closed loop step motor's closed loop system can make the motor reversal, makes personnel or luggage pass through smoothly, plays the effect of preventing pressing from both sides.
Preferably, the driving wheel (12) is provided with a through hole (121), the two fin ends of the driving wheel are respectively provided with a first open slot (122) and a second open slot (123), and the trunnion slide block connecting rod (13) rotates around the center of the through hole (121) on the driving wheel (12).
Preferably, the center of the through hole (121) on the driving wheel (12) is not on the same horizontal line with the axis of the driving wheel (12). Namely, an included angle of n degrees is formed between the circle center of the through hole (121) and the circle center line of the axle center of the driving wheel (12) and the horizontal axle center line of the axle center of the through driving wheel (12), wherein n is a variable and is determined by the stroke of the extending door.
Preferably, a stop shaft (8) is arranged below the driving wheel (12), the stop shaft (8) is tangent to the driving wheel (12), and when the driving wheel (12) rotates, the stop shaft is clamped into the first open groove (122) or the second open groove (123) to limit the extension or retraction of the translation door (23). When the stop shaft is clamped into the first slot or the second slot, the stop shaft is concentric with the first slot or the second slot. After the translation door is completely closed, when an unauthorized person pushes the translation door by external force, the stop shaft can reversely push the second slot of the driving wheel, namely, a first limit point of the whole translation door system is formed, the translation door is prevented from being pulled back, and the unauthorized person is effectively prevented from passing through the translation door. When closed loop step motor loses electricity or breaks down, energy storage equipment relies on the energy storage of itself, will stimulate drive arrangement and slave unit and reset, makes the translation door open completely, and the locking axle can reversely push the first fluting of drive wheel, forms the second limit point of whole translation door system, has played the effect of buffering to the translation door, prevents that the translation door from resetting excessively causing the system to damage, has played effectual self-protection to whole translation door system.
Preferably, the base body of the stop shaft (8) is made of metal, and the surface of the stop shaft is made of nonmetal. The noise reduction device can effectively reduce noise and simultaneously has the function of buffering a system.
Preferably, a V-shaped groove (124) for accommodating the flexible steel wire (33) to pass through is arranged between the two wing ends of the driving wheel (12), and the V-shaped groove (124) and the output shaft of the closed-loop stepping motor (11) are coaxial, so that the travelling track of the flexible steel wire is kept at the bottom of the V-shaped groove.
In order to achieve the above object, the utility model also provides a control method of translation door core, including following step:
step one, when a driving device (1) receives a communication signal for closing a translation door given by a gate machine, energy is stored in an energy storage device (3), a closed-loop stepping motor (11) provides electric energy to drive a driving wheel (12) to rotate clockwise, a trunnion slide block connecting rod (13) rotates around the center of a through hole (121) in the driving wheel (12) to drive a slide block (14) to move up and down in a linear guide rail (25) and provide power for a driven device (2);
after the driven device (2) obtains power, the translation door (23) moves horizontally and linearly along the axial direction of the aluminum support cylindrical guide rail (7) and extends out of the machine body, when a second groove (123) of the driving wheel (12) clamps the stop shaft (8), the driving wheel (12) stops rotating, the translation door (23) extends out completely, and the gate is in a fully closed state;
step three, when the driving device (1) receives a communication signal for opening the translation door given by the gate machine, the closed-loop stepping motor (11) provides electric energy to drive the driving wheel (12) to rotate anticlockwise, the trunnion slide block connecting rod (13) rotates around the circle center of the through hole (121) in the driving wheel (12) to drive the slide block (14) to move up and down in the linear guide rail (25) and provide power for the driven device (2);
and fourthly, after the driven device (2) obtains power, the translation door (23) moves horizontally and linearly along the axial direction of the aluminum support cylindrical guide rail (7) and is pulled back from the outside of the machine body, when the first open groove (122) of the driving wheel (12) clamps the stop shaft (8), and the driving wheel (12) stops rotating, the translation door (23) is pulled back completely, and the gate is in a fully open state.
Preferably, when the closed-loop stepping motor (11) is powered off, the energy storage device (3) for obtaining energy storage pulls the translation door (23) back from the outside of the machine body along the aluminum support supporting cylindrical guide rail (7) by means of self energy storage, when the first open groove (122) of the driving wheel (12) blocks the stop shaft (8), and the driving wheel (12) stops rotating, the translation door (23) is completely pulled back, and the gate is in a fully open state.
The working principle is as follows: after a translation door core is installed, the torque of an adjustable torque type closed-loop stepping motor can be set, so that the adjustable torque type closed-loop stepping motor can modulate the allowance of the torque to the minimum while driving the whole system, then the installed and set core is installed on a gate machine, when the adjustable torque type closed-loop stepping motor receives a door closing signal, a driving device drives a driven device to extend a translation door out of the gate machine, and in the process of extending the translation door, if extra resistance is met and the extra resistance is greater than the allowance of the torque of the adjustable torque type closed-loop stepping motor, the translation door automatically returns to the gate machine, so that people and luggage can pass through the gate machine smoothly, and the anti-pinch effect is achieved; if no extra resistance is met in the extending process, the translation door is completely extended out of the gate to play a role in isolating a channel of the gate; if the translation door completely extends out of the gate, an unauthorized person forcibly pushes the translation door of the gate, and the translation door cannot be opened due to the limit of the stop shaft in the movement and the second slot of the driving wheel, so that the pushing prevention effect is realized; if the translation door is completely extended out of the gate, the adjustable torque type closed-loop stepping motor is powered off or fails, the energy storage device can pull the driving device and the driven device to reset by means of energy storage of the energy storage device, so that the translation door is completely opened, a gate passage is smooth, and a barrier-free passage is formed in a system.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model relates to a translation door core, under the prerequisite that satisfies current each item performance index, possess simple structure, the fault rate is low, the scour protection function, and characteristics such as design benefit, effect are showing;
(2) the utility model relates to a translation door core, the moment of torsion of motor can freely set up, make it can be when driving whole system, with the rich surplus modulation minimum of moment of torsion, the in-process that the translation door was closed, touch people or luggage, when the moment of torsion exceeded rich surplus, the closed loop system of closed loop step motor can make the motor reverse, make personnel or luggage pass through smoothly, play the effect of preventing pressing from both sides, can effectively clear away floodgate machine and press from both sides people's hidden danger;
(3) the utility model relates to a translation door core, when the motor takes place to lose the electric fault under the condition of closing the door, set up power storage device and have the self-resuming function, can open the passageway automatically, let the pedestrian evacuate from the passageway very first time, solved the pedestrian and evacuated the potential safety hazard problem of guiding;
(4) the utility model relates to a translation door core, stop shaft and drive wheel cooperation can prevent effectively that unauthorized person from passing through the translation door, have the effect of buffering to the translation door system simultaneously, have played effectual self-protection to whole translation door system, and can effectively reduce the noise;
(5) the utility model relates to a translation door core, the aluminum support cylindrical guide rail plays the horizontal anti-shake effect to the translation door, ensures the stable and safe movement of the translation door;
(6) the translation door core has wide application range, can be applied to gate machines in entrance guard places such as rail transit, tourist attractions, venues, factories and the like, and has practicability and economy;
(7) the utility model relates to a translation door core, it is with low costs, the installation is dismantled simply swiftly, and the device is firm, the flexibility is strong, and is effectual, is fit for promoting on a large scale.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a sliding door movement;
FIG. 2 is a schematic view of a sliding door movement in operation;
fig. 3 is a schematic view of the arrangement position of the through hole on the driving wheel.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Examples
The embodiment provides a translation door movement, the structure of which is shown in the attached drawings 1, 2 and 3 in detail: the device comprises a driving device 1, a driven device 2, an energy storage device 3, an upper aluminum support supporting cylindrical guide rail backer 5 and a lower aluminum support supporting cylindrical guide rail backer 6 which are arranged on a machine core base 4; an aluminum support cylindrical guide rail 7 is fixed on the upper aluminum support cylindrical guide rail backer 5 and the lower aluminum support cylindrical guide rail backer 6;
the driven device 2 comprises linear bearings 21, Z-shaped backer 22, translation doors 23, glass clamping pieces 24 and linear guide rails 25, wherein 2 linear bearings 21 are arranged and respectively move horizontally on the aluminum support cylindrical guide rails 7 at the upper end and the lower end, the upper end and the lower end of the Z-shaped backer 22 are respectively fixed with the linear bearings 21, the linear guide rails 25 are fixed on the Z-shaped backer 22, the translation doors 23 are fixed on the Z-shaped backer 22 through the glass clamping pieces 24, the gravity centers of the translation doors fall in the middle of the aluminum support cylindrical guide rails 7, and the translation doors 23 axially move horizontally and linearly on the aluminum support cylindrical guide rails 7; the aluminum support supporting cylindrical guide rail 7 plays a transverse anti-shaking role in the sliding door 23;
the driving device 1 comprises a closed-loop stepping motor 11, a driving wheel 12, a trunnion slide block connecting rod 13 and a slide block 14, wherein the closed-loop stepping motor 11 and the driving wheel 12 are fixedly connected and respectively arranged on two side surfaces of the movement base 4, the trunnion slide block connecting rod 13 is respectively fixed with the driving wheel 12 and the slide block 14, and the slide block 14 moves up and down in a linear guide rail 25;
the energy storage device 3 comprises a tension spring 31 and a soft steel wire 32, two ends of the soft steel wire 32 are respectively connected with the tension spring 31 and the driving wheel 12, and the other end of the tension spring 31 is fixed on the movement base 4 through a fixing column.
Further, the width of the lower aluminum-support cylindrical guide rail backer 6 is greater than the width of the upper aluminum-support cylindrical guide rail backer 5.
Further, the closed-loop stepping motor 11 is an adjustable torque type closed-loop stepping motor capable of freely setting torque. Adjustable torque formula closed loop step motor's moment of torsion can set up for it can be when driving entire system, with the rich surplus modulation minimum of moment of torsion, the in-process that the translation door was closed touches people or luggage, and when the moment of torsion exceeded rich surplus, closed loop step motor's closed loop system can make the motor reversal, makes personnel or luggage pass through smoothly, plays the effect of preventing pressing from both sides.
Further, a through hole 121 is formed in the driving wheel 12, a first slot 122 and a second slot 123 are respectively formed in two fin ends of the driving wheel, and the trunnion slide block connecting rod 13 rotates around the center of the through hole 121 in the driving wheel 12.
Furthermore, the center of the through hole 121 on the driving wheel 12 is not on the same horizontal line with the axis of the driving wheel 12. That is, an included angle of n degrees is formed between the circle center line of the through hole 121 and the axis center of the driving wheel 12 and the horizontal axis line of the axis center of the driving wheel 12, and n is a variable and is determined by the stroke of the extension door (as shown in fig. 3).
Further, a stop shaft 8 is arranged below the driving wheel 12, the stop shaft 8 is tangent to the driving wheel 12, and when the driving wheel 12 rotates, the stop shaft is clamped into the first slot 122 or the second slot 123 to limit the extension or retraction of the translation door 23. When the stop shaft is clamped into the first slot or the second slot, the stop shaft is concentric with the first slot or the second slot. After the translation door is completely closed, when an unauthorized person pushes the translation door by external force, the stop shaft can reversely push the second slot of the driving wheel, namely, a first limit point of the whole translation door system is formed, the translation door is prevented from being pulled back, and the unauthorized person is effectively prevented from passing through the translation door. When closed loop step motor loses electricity or breaks down, energy storage equipment relies on the energy storage of itself, will stimulate drive arrangement and slave unit and reset, makes the translation door open completely, and the locking axle can reversely push the first fluting of drive wheel, forms the second limit point of whole translation door system, has played the effect of buffering to the translation door, prevents that the translation door from resetting excessively causing the system to damage, has played effectual self-protection to whole translation door system.
Furthermore, the base body of the stop shaft 8 is made of metal, and the surface of the stop shaft is made of nonmetal. The noise reduction device can effectively reduce noise and simultaneously has the function of buffering a system.
Further, a V-shaped groove 124 for accommodating the flexible steel wire 33 to pass through is arranged between the two wing ends of the driving wheel 12, and the V-shaped groove 124 and the output shaft of the closed-loop stepping motor 11 are coaxial, so that the advancing track of the flexible steel wire 3 is kept at the bottom of the V-shaped groove.
In a second aspect, the present embodiment further provides a control method of a sliding door movement, including the following steps:
step one, when the driving device 1 receives a communication signal for closing the sliding door given by a gate machine, the driving device stores energy in the energy storage device 3, the closed-loop stepping motor 11 provides electric energy to drive the driving wheel 12 to rotate clockwise, the trunnion slide block connecting rod 13 rotates around the center of a circle of a through hole 121 in the driving wheel 12 to drive the slide block 14 to move up and down in the linear guide rail 25, and power is provided for the driven device 2;
after the driven device 2 obtains power, the translation door 23 makes horizontal linear motion along the axial direction of the aluminum support cylindrical guide rail 7 and extends out of the machine body, when the second slot 123 of the driving wheel 12 blocks the stop shaft 8, the driving wheel 12 stops rotating, the translation door 23 completely extends out, and the gate is in a fully closed state;
step three, when the driving device 1 receives a communication signal for opening the translation door given by the gate machine, the closed-loop stepping motor 11 provides electric energy to drive the driving wheel 12 to rotate anticlockwise, the trunnion slide block connecting rod 13 rotates around the center of the through hole 121 on the driving wheel 12 to drive the slide block 14 to move up and down in the linear guide rail 25, and power is provided for the driven device 2;
and fourthly, after the driven device 2 obtains power, the translation door 23 makes horizontal linear motion along the axial direction of the aluminum support cylindrical guide rail 7 and is pulled back from the outside of the machine body, when the first open groove 122 of the driving wheel 12 clamps the stop shaft 8 and the driving wheel 12 stops rotating, the translation door 23 is completely pulled back, and the gate is in a fully open state.
Further, when the closed-loop stepping motor 11 is powered off, the energy storage device 3 which obtains energy storage pulls the sliding door 23 back from the outside of the machine body along the aluminum support supporting cylindrical guide rail 7 by means of self energy storage, and when the first open slot 122 of the driving wheel 12 blocks the stop shaft 8 and the driving wheel 12 stops rotating, the sliding door 23 is completely pulled back, and the gate machine is in a fully open state.
The working principle is as follows: after a translation door core is installed (as shown in fig. 1), the torque of an adjustable torque type closed-loop stepping motor can be set, so that the adjustable torque type closed-loop stepping motor can modulate the allowance of the torque to the minimum while driving the whole system, then the installed and set core is installed on a gate, when the adjustable torque type closed-loop stepping motor receives a door closing signal, a driving device drives a driven device to extend a translation door out of the gate, and in the process of extending the translation door, if extra resistance is met and the extra resistance is greater than the allowance of the torque of the adjustable torque type closed-loop stepping motor, the translation door automatically returns to the gate, so that people and luggage can pass smoothly, and the anti-pinch effect is achieved; if no extra resistance is met in the extending process, the translation door is completely extended out of the gate to play a role in isolating a channel of the gate; if the translation door completely extends out of the gate, an unauthorized person forcibly pushes the translation door of the gate, and the translation door cannot be opened due to the limit of the stop shaft in the movement and the second slot of the driving wheel, so that the pushing prevention effect is realized; if the translation door is completely extended out of the gate, the adjustable torque type closed-loop stepping motor is powered off or fails, the energy storage device can pull the driving device and the driven device to reset by means of energy storage of the energy storage device, so that the translation door is completely opened, a gate passage is smooth, and a barrier-free passage is formed in a system.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (8)
1. A translation door movement is characterized by comprising a driving device (1), a driven device (2), an energy storage device (3), an upper aluminum support supporting cylindrical guide rail backer (5) and a lower aluminum support supporting cylindrical guide rail backer (6) which are arranged on a movement base (4); an aluminum support cylindrical guide rail (7) is fixed on each of the upper aluminum support cylindrical guide rail backer (5) and the lower aluminum support cylindrical guide rail backer (6);
the driven device (2) comprises linear bearings (21), Z-shaped supports (22), translation doors (23), glass clamping pieces (24) and linear guide rails (25), wherein the number of the linear bearings (21) is 2, the linear bearings respectively horizontally move on the aluminum support supporting cylindrical guide rails (7) at the upper end and the lower end, the upper end and the lower end of each Z-shaped support (22) are respectively fixed with the linear bearings (21), the linear guide rails (25) are fixed on the Z-shaped supports (22), the translation doors (23) are fixed on the Z-shaped supports (22) through the glass clamping pieces (24), the gravity centers of the translation doors fall in the middles of the aluminum support supporting cylindrical guide rails (7), and the translation doors (23) axially and horizontally move linearly on the aluminum support supporting cylindrical guide rails (7);
the driving device (1) comprises a closed-loop stepping motor (11), a driving wheel (12), a trunnion slide block connecting rod (13) and a slide block (14), wherein the closed-loop stepping motor (11) and the driving wheel (12) are fixedly connected and are respectively arranged on two side surfaces of a machine core base (4), the trunnion slide block connecting rod (13) is respectively fixed with the driving wheel (12) and the slide block (14), and the slide block (14) moves up and down in a linear guide rail (25);
energy storage device (3) are including extension spring (31) and mild steel wire (32), the both ends of mild steel wire (32) are connected with extension spring (31) and drive wheel (12) respectively, the other end of extension spring (31) is fixed on core base (4) through the fixed column.
2. Translation door movement according to claim 1, characterized in that the width of the lower aluminum bearing supporting cylindrical guide rail rest (6) is greater than the width of the upper aluminum bearing supporting cylindrical guide rail rest (5).
3. Translation door movement according to claim 1, characterized in that the closed-loop stepping motor (11) is a torque-adjustable closed-loop stepping motor with freely settable torque.
4. The translation door movement according to claim 1, wherein the driving wheel (12) is provided with a through hole (121), the two wing ends of the driving wheel are respectively provided with a first slot (122) and a second slot (123), and the trunnion slide block connecting rod (13) rotates around the center of the through hole (121) on the driving wheel (12).
5. Translation door movement according to claim 4, characterized in that the centre of the through hole (121) in the driving wheel (12) is not in a horizontal line with the axis of the driving wheel (12).
6. Translation door movement according to claim 4, characterized in that a stop shaft (8) is provided below the drive wheel (12), the stop shaft (8) is tangential to the drive wheel (12), and limits the extension or retraction of the translation door (23) by snapping into the first slot (122) or the second slot (123) when the drive wheel (12) rotates.
7. The translation door movement according to claim 6, wherein the base of the stop shaft (8) is made of metal and the surface of the stop shaft is made of non-metal.
8. The sliding door movement according to claim 1, wherein a V-shaped groove (124) for accommodating the wire passing of the flexible steel wire (33) is arranged between two wing ends of the driving wheel (12), and the V-shaped groove (124) is coaxial with the output shaft of the closed-loop stepping motor (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920787497.4U CN211038280U (en) | 2019-05-29 | 2019-05-29 | Translation door core |
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| CN201920787497.4U CN211038280U (en) | 2019-05-29 | 2019-05-29 | Translation door core |
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| CN211038280U true CN211038280U (en) | 2020-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173187A (en) * | 2019-05-29 | 2019-08-27 | 上海大漠电子科技股份有限公司 | A kind of translation door machine core and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173187A (en) * | 2019-05-29 | 2019-08-27 | 上海大漠电子科技股份有限公司 | A kind of translation door machine core and its control method |
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