AU2020103232A4 - Alternate push mechanism for drawers - Google Patents
Alternate push mechanism for drawers Download PDFInfo
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- AU2020103232A4 AU2020103232A4 AU2020103232A AU2020103232A AU2020103232A4 AU 2020103232 A4 AU2020103232 A4 AU 2020103232A4 AU 2020103232 A AU2020103232 A AU 2020103232A AU 2020103232 A AU2020103232 A AU 2020103232A AU 2020103232 A4 AU2020103232 A4 AU 2020103232A4
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- test position
- work position
- move
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Abstract
The invention discloses alternate push mechanism for drawers. The invention belongs to the
technical field of switch cabinets. The invention including a control mechanism, a push
5 mechanism, a work position contact, and a test position contact, wherein the control
mechanism includes a first gear linkage mechanism, a left rack plate, and a right rack plate;
the push mechanism includes a second gear linkage mechanism and a third gear linkage
mechanism; the first gear linkage mechanism is driven by an operation mechanism outside a
drawer panel, so as to control the left and right rack plates inside the drawer panel to move
0 towards each other in opposite directions or move away from each other in opposite
directions; the left and right rack plates realize sequential connection to the test position
contact and the work position contact and sequential disconnection from the test position
contact and the work position contact, respectively, through the linkage action with the
second gear linkage mechanism and the third gear linkage mechanism. The invention has the
5 alternate push mechanism for drawers of the invention can realize that the circuit contact
states of the drawer switch cabinet can be regulated and controlled only by using one
operation tool on the premise that the drawers (i.e., equipment carriers) do not need to move,
so that the alternate push mechanism saves power, is efficient, and is higher in safety.
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Description
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Field
[0001] This is a divisional application of PCT Application No. PCT/CN2018/088972 filed on 30 May 2018, the entire contents of which are hereby incorporated by reference.
[0002] The invention belongs to the technical field of switch cabinets, and more particularly relates to a novel drawer unit operation mechanism.
Background
[0003] A low-voltage complete switchgear is a device that completes electrical power control, protection, conversion and distribution in a low-voltage power supply system, and is widely used in industrial enterprises, public places and residential buildings. At the present, the low-voltage complete switchgear in China is still dominated by a fixed panel type and a withdrawable type.
[0004] A drawer type switch cabinet is closed switch complete equipment with a relatively high protection level. Its structure adopts a closed housing made of a steel plate. Electrical components of incoming and outgoing circuits are all installed in a withdrawable component to complete a certain power supply or power distribution function. The drawer type switch cabinet has compact equipment, strong structural versatility, flexible, safe and reliable assembling, and convenience in disassembly and assembly, has relatively high reliability, safety and interchangeability, is suitable for places with relatively high power supply reliability requirements, and is a current mainstream low voltage switchgear.
[0005] A drawer in the drawer type switch cabinet is generally set to have a work position (switch connection position), a test position and a disconnection position (where switches are !5 separated from each other). A mainstream drawer mostly uses an insertion depth of the drawer itself to realize circuit contact states of the disconnection position, the test position, and the work position. When the drawer is fully pushed in, a main circuit socket is connected to a plug, a control circuit plug is connected to a socket, and the drawer is at the work position. When the drawer is drawn out for a certain distance, the main circuit socket is disconnected from the plug, the control circuit plug is connected to the socket, and the drawer is at the test position. When the drawer is completely drawn out, the main circuit plug is disconnected from the socket, the control circuit socket and the plug are also completely separated, and the drawer is at the disconnection position.
[0006] This method requires an operator to plug and unplug a drawer to switch the position of the drawer, which has an insertion resistance, so the operation is laborious; and at the test position, the drawer is drawn out for a certain distance, and the protection level of the cabinet will be reduced.
[0007] The Chinese patent application with the application number 201520250682.1 discloses a novel drawer unit operation mechanism, including a drawer bottom plate, a contact push rod, a shaft sleeve, a gear shaft, a secondary push rod, a limiting block, a left horizontal rack, a right horizontal rack, a double-layer gear, a left longitudinal rack, a right longitudinal rack, a secondary terminal plug, a secondary terminal socket and a key. The shaft sleeve sleeves the gear shaft, and the shaft sleeve and the gear shaft are provided with a key hole matched with the key; the shaft sleeve meshes with the secondary push rod; the upper and lower parts of the gear shaft respectively mesh with the left horizontal rack and the right horizontal rack; the secondary push rod is clamped with the secondary terminal plug; the secondary terminal socket is connected with the drawer bottom plate; the double-layer gear includes a left side double-layer gear and a right-side double-layer gear; the left side double-layer gear and the right-side double-layer gear are both located on the drawer bottom plate; upper-layer teeth of the left-side double-layer gear mesh with the left horizontal rack; lower-layer teeth of the left-side double-layer gear mesh with the left longitudinal rack; lower-layer teeth of the right-side double-layer gear mesh with the right horizontal rack; upper-layer teeth of the right-side double-layer gear mesh with the right longitudinal rack; the limiting block is fixed on the drawer bottom plate through rivets; and the contact push rod is riveted to the longitudinal racks respectively.
[0008] The key in the novel drawer unit operation mechanism includes a work key and a test key. The work key is inserted into the key hole. If the key is turned in a forward direction, the shaft sleeve and the gear shaft will rotate at the same time. If the key is turned in a reverse direction, a contact is separated from a vertical busbar. When the drawer is at the disconnection position, the test key is inserted into the key hole; and only the shaft sleeve rotates if the key is turned. The novel drawer unit operation mechanism is not realized by the movement of the drawer, and directly drives, through a transmission mechanism, the contact to move to achieve the objective of controlling the drawer to be in different circuit contact states, but this cannot be realized without two keys that are operated in order, so it is low in efficiency. Furthermore, the two keys are easy to confuse, resulting in mis-operation. If any one of the two keys is lost, the state of the drawer unit operation mechanism cannot be controlled.
[0009] Any references to prior art should not be taken as admissions of common general knowledge in the field.
Summary
[0010] The invention is directed to provide a push mechanism capable of conveniently and efficiently realizing control of a circuit contact state of a drawer switch cabinet.
[0011] Specifically, the invention is realized by using the following technical solution:
[0012] An alternate push mechanism for drawers including a control mechanism, a push mechanism, a work position contact, and a test position contact, wherein the control mechanism includes a first gear linkage mechanism, a left rack plate, and a right rack plate; the push mechanism includes a second gear linkage mechanism and a third gear linkage mechanism; the first gear linkage mechanism is driven by an operation mechanism outside a drawer panel, so as to control the left and right rack plates inside the drawer panel to move towards each other in opposite directions or move away from each other in opposite directions; the left and right rack plates realize sequential connection to the test position contact and the work position contact and sequential disconnection from the test position contact and the work position contact, respectively, through the linkage action with the second gear linkage mechanism and the third gear linkage mechanism.
[0013] Further in the technical solution, the structure of the second gear linkage mechanism and the structure of the third gear linkage mechanism are the same.
[0014] Further in the technical solution, the second gear linkage mechanism or the third gear linkage mechanism includes a transmission gear, a test position rack plate connected with the test position contact, and a work position rack plate connected with the work position contact; the transmission gear includes a tooth layer meshing with the test position rack plate, a tooth layer meshing with the work position rack plate, and a tooth layer meshing !5 with a rack plate in the control mechanism; the tooth layer, which meshes with the test position rack plate, on the transmission gear and the tooth layer, which meshes with the work position rack plate, on the transmission gear are both provided with partial gaps, so that when the operation mechanism is rotated to a first angle, the test position rack plate moves, and the work position rack plate does not move, and when the operation mechanism continues to be rotated to a second angle, the work position rack plate moves, and the test position rack plate does not move.
[0015] Further in the technical solution, the structure of the second gear linkage mechanism and the structure of the third gear linkage mechanism are different.
[0016] Further in the technical solution, the second gear linkage mechanism includes a left transmission gear and a work position rack plate connected with the work position contact; the left transmission gear includes a tooth layer meshing with the work position rack plate, and a tooth layer meshing with a left rack plate in the control mechanism; the tooth layer, which meshes with the work position rack plate, on the left transmission gear is provided with partial gaps, so that when the operation mechanism is rotated to a first angle, the test position gear of the third gear linkage mechanism moves, and the work position rack plate does not move, and when the operation mechanism continues to be rotated to a second angle, the work position rack plate moves, and the test position gear does not move; and
[0017] the third gear linkage mechanism includes a right transmission gear, a test position gear connected with the test position contact, and a work position rack plate connected with the work position contact; the right transmission gear includes a tooth layer meshing with the test position gear, a tooth layer meshing with the work position rack plate, and a tooth layer meshing with a right rack plate in the control mechanism; the tooth layer, which meshes with the work position rack plate, on the right transmission gear is provided with partial gaps, and the tooth layer, which meshes with the test position gear, on the right transmission gear or the tooth layer, which meshes with the transmission gear, on the test position gear, is provided with partial gaps, so that when an operation mechanism is rotated to a first angle, the test position gear moves, and the work position rack plate does not move, and when the operation mechanism continues to be rotated to a second angle, the work position rack plate moves, and the test position gear does not move.
[0018] Further in the technical solution, the transmission gear or the test position gear is further provided with a gear limiting sheet; and the gap portions on the transmission gear are limited by gear teeth and the gear limiting sheet respectively along two sides of an axial !5 direction.
[0019] Further in the technical solution, the control mechanism includes a right rack plate, a left rack plate, a driven gear, and a driving gear; the driven gear meshes with the driving gear; at the same time, the right rack plate and the left rack plate are distributed on the inner and outer sides of the driven gear, and mesh with the driven gear; and the operation mechanism realizes, by means of controlling the driving gear to rotate, that the right rack plate and the left rack plate move towards each other in opposite directions or move away from each other in opposite directions.
[0020] Further in the technical solution, the driven gear is a bevel gear, or the driven gear and the driving gear are both bevel gears.
[0021] Further in the technical solution, further including a test position push block, wherein the test position contact is fixed on the test position push block; the lateral edge of the test position push block is provided with clamping teeth; the test position gear includes a first tooth layer meshing with the right transmission gear, and a second tooth layer meshing with the clamping teeth on the lateral edge of the test position push block; the right transmission gear drives the test position gear to rotate, so as to push the test position push block to move and then establish electrical connection between the test position contact and a test position socket.
[0022] Further in the technical solution, further including a display mechanism, wherein the display mechanism includes a lock hole panel and a station marking plate; the lock hole panel is provided with a station indication window configured to display a station state; a gear shaft of the driving gear is fixedly connected with a marking plate drive wheel; a distance from the outer wall of the marking plate drive wheel to the axis of the gear shaft is gradually increased; the station marking plate may be disposed in a region, which corresponds to the station indication window, on the inner side of the lock hole panel in a manner of sliding up and down relative to the lock hole panel; the lateral edge of the station marking plate is provided with a protrusion; and the protrusion is lapped onto the outer wall of the outermost side of the marking plate drive wheel.
[0023] The invention has the following effects: the alternate push mechanism for drawers of the invention can realize that the circuit contact states of the drawer switch cabinet can be regulated and controlled only by using one operation tool on the premise that the drawers (i.e., equipment carriers) do not need to move, so that the alternate push mechanism saves power, is efficient, and is higher in safety. Since the indicator lamps, and the marks with !5 different colors and characters are used, the working states of the drawers are clear at a glance at the station indication window.
Brief Description of the Drawings
[0024] Fig. 1 is an overall schematic structural diagram of Embodiment 1 of the invention;
[0025] Fig. 2 is an enlarged schematic diagram of a control mechanism of Embodiment 1 of the invention;
[0026] Fig. 3 is an enlarged schematic diagram of a transmission mechanism A of Embodiment 1 of the invention;
[0027] Fig. 4 is a front view of a transmission gear of Embodiment 1 of the invention;
[0028] Fig. 5 is a side view of a transmission gear of Embodiment 1 of the invention;
[0029] Fig. 6 is a rear view of a transmission gear of Embodiment 1 of the invention;
[0030] Fig. 7 is a sectional view of a surface A-A of the transmission gear in Fig. 5;
[0031] Fig. 8 is a sectional view of a surface B-B of the transmission gear in Fig. 5;
[0032] Fig. 9 is a three-dimensional diagram of a transmission gear in Embodiment 1 of the invention;
[0033] Fig. 10 is an overall schematic structural diagram, which is seen from the inner side to the outer side, of Embodiment 2 of the invention;
[0034] Fig. 11 is an overall schematic structural diagram, which is seen from the outer side to the inner side, of Embodiment 2 of the invention;
[0035] Fig. 12 is an enlarged schematic diagram of a left-side push mechanism of Embodiment 2 of the invention; and
[0036] Fig. 13 is an enlarged schematic diagram of a right-side push mechanism of Embodiment 2 of the invention.
[0037] Numerals in the drawings: 1: station indication window; 2: protrusion; 3: work position contact; 4: test position contact; 5: gear limiting sheet; 6: control mechanism; 61: fixed base; 62: right rack plate; 63: left rack plate; 64: driven bevel gear; 65: driving bevel gear; 66: lock hole panel; 67: gear shaft; 68: marking plate drive wheel; 69: station marking plate; 7: transmission mechanism A; 71: test position rack plate; 72: transmission gear; 73: work position rack plate; 711: test position push plate; 731: work position push plate; 70: transmission mechanism B; 720: left transmission gear; 721: right transmission gear; 712: test position gear; and 713: test position push block.
Detailed Description of the Embodiments !5 [0038] The invention will be further described below in detail in combination with the embodiments and with reference to the accompanying drawings.
[0039] Drawers of a low-voltage switch cabinet are divided into two types of wiring according to different voltages and effects. One is used for connection of a high-voltage circuit, and the other one is used for connection of a control circuit. A drawer has the following three working states:
[0040] State 1, which is called a disconnection position, where a primary incoming circuit and a secondary incoming circuit are not connected;
[0041] State 2, which is called a test position, where the primary incoming line is not connected, and the secondary incoming line is connected;
[0042] State 3, which is called a work position, where the primary incoming line and the secondary incoming line are both connected.
[0043] Embodiment 1
[0044] One embodiment of the invention is an alternate push mechanism for drawers. Referring to Fig. 1, the alternate push mechanism for the drawers mainly includes a control mechanism 6 and a transmission mechanism A 7.
[0045] Referring to Fig. 2, the control mechanism 6 includes a fixed base 61, a right rack plate 62, a left rack plate 63, a driven bevel gear 64, a driving bevel gear 65, a lock hole panel 66, a gear shaft 67, a marking plate drive wheel 68 and a station marking plate 69. The gear shaft 67 is transversely disposed, and the inner end of the gear shaft is provided with the driving bevel gear 65. The driving bevel gear 65 meshes with upper gear teeth of the driven bevel gear 64 having a vertical center shaft. The right rack plate 62 and the left rack plate 63 are distributed on two sides of the driven bevel gear 64, and respectively mesh with lower gear teeth of the driven bevel gear 64. When the gear shaft 67 rotates, the right rack plate 62 and the left rack plate 63 can be simultaneously driven to move towards two sides. In the present embodiment, the bevel gear is illustrated only, but it is not limited to the bevel gear, and there are other types of gears, as long as the structure of a gear used can realize the above-mentioned function.
[0046] The fixed base 61 is fixed on the drawer bottom plate through rivets, and limits the left rack plate 63 and the right rack plate 62. The driven bevel gear 64 is fixed on the fixed base 61.
[0047] A lock hole is formed in the control mechanism 6, so that an operation member (such as a key) is inserted to cause the left and right rack plates to respectively move towards the left and right sides by driving the driving bevel gear 65, and then the motions are !5 transmitted to contacts through the transmission mechanism A 7 to realize connection and disconnection control of circuits.
[0048] The transmission mechanism A 7 includes push structures on the left and right sides of the drawer. Since the structures of the push mechanisms on the two sides of the drawer are the same, the portion on the right side is taken as an example for structural description. The left side and the right side in the present embodiment refer to the left side and the right side when seen from the outer side to the inner side of the drawer. Referring to Fig. 3, the push mechanism on the right side includes a test position rack plate 71, a work position rack plate 73 and a transmission gear 72. The right rack plate 62, the test position rack plate 71 and the work position rack plate 73 all mesh with the transmission gear 72. The structure of the transmission gear 72 refers to Fig. 4 to Fig. 9. The transmission gear 72 is provided with a plurality of layers of teeth, including a layer where teeth meshing with the test position rack plate 71 are located, a layer where teeth meshing with the work position rack plate 73 are located, and a layer where teeth meshing with the right rack plate 62 are located. The layer, where the teeth meshing with the test position rack plate 71 are located, on the transmission gear 72 and the layer, where the teeth meshing with the work position rack plate 73 are located, on the transmission gear 72 have partial gaps, so that when the operation member is rotated to a certain angle (such as 90 degrees), the test position rack plate 71 moves, and the work position rack plate 73 does not move; and when the operation member continues to be rotated to a certain angle (such as 180 degrees), the work position rack plate 73 moves, and the test position rack plate 71 does not move. When the transmission gear 72 with the gaps is used for transmission, the gear deflects easily during reverse transmission. In the present embodiment, this problem is solved by means of setting a gear limiting sheet 5 (referring to Fig. 9). After the gear limiting sheet 5 is provided, the gap portions on the transmission gear 72 are respectively limited by gear teeth and the gear limiting sheet 5 along two sides of an axial direction. The transmission gear 72 meshing with the test position rack plate 71, the work position rack plate 73, and the right rack plate 62 respectively is not limited to the above-mentioned three-layer structure illustrated in the present embodiment, as long as the transmission gear 72 at least includes three layers of gear teeth meshing with the test position rack plate 71, the work position rack plate 73, and the right rack plate 62 respectively. The test position rack plate 71, the work position rack plate 73, and the right rack plate 62 are not limited to forming meshing layers according to the above sequence, either, as long as it is ensured that the test position rack plate 71, the work position rack plate 73, and the right rack plate 62 respectively mesh with the gear teeth on different layers on the transmission gear 72. !5 However, at this moment, the setting of each layer of gear teeth on the transmission gear 72 still needs to ensure that when the operation member is rotated to a certain angle (such as 90 degrees) to drive the right rack plate 62 to move a certain distance, the test position rack plate 71 moves, and the work position rack plate 73 does not move, and that when the operation member continues to be rotated to a certain angle (such as 180 degrees) to drive the right rack plate 62 to continue to move a certain distance, the work position rack plate 73 moves, and the test position rack plate 71 does not move. The above-mentioned rotating angle is only an example of the present embodiment, and different rotating angles can be set as required.
[0049] As shown in Fig. 1, the test position rack plate 71 is fixedly connected to a test position push plate 711; the test position push plate 711 is fixedly connected to a test position contact 4; the work position rack plate 73 is fixedly connected to a work position push plate 731, and the work position push plate 731 is fixedly connected to a work position contact 3. When the test position rack plate 71 moves, the test position push plate 711 is driven to move, and then the test position contact 4 is pushed to move. Therefore, electrical connection is established between the test position contact 4 and a test position socket (not shown in the figure), so as to reach a test position. When the work position rack plate 73 moves, the work position push plate 731 moves, and then the work position contact 3 is pushed to move. Therefore, electrical connection is established between the work position contact 3 and a work position socket (not shown in the figure), so as to reach a work position.
[0050] When the drawer is at the work position, if the operation member is reversely rotated to a certain angle (such as 180 degrees), the work position rack plate 73 reversely moves, and the test position rack plate 71 does not move. The work position push plate 731 pulls the work position contact 3 to reversely move and leave the work position socket (not shown in the figure), so that the electrical connection between the work position contact 3 and the work position socket (not shown in the figure) is cut off to reach a test position. If the operation member continues to be reversely rotated to a certain angle (such as 90 degrees), the test position rack plate 71 reversely moves, and the work position rack plate 73 does not move. The test position push plate 711 pulls the test position contact 4 to reversely move and leave the test position socket (not shown in the figure), so that the electrical connection between the test position contact 4 and the test position socket (not shown in the figure) is cut off to reach a disconnection position. Therefore, one operation tool can realize, by means of rotation of the control mechanism, regulation and control of the disconnection position, the test position and the work position. !5 [0051] In conclusion, in the whole operation process, the drawer (i.e., an equipment carrier) does not need to move. Motions of the test contact and the work contact can be realized if the control mechanism rotates the gear shaft, so as to achieve the object of point contact; therefore, the operation saves more power, is more efficient, and is higher in safety.
[0052] A station indication window 1 is further formed in the lock hole panel 66, and is used for indicating a current working state of the drawer. Referring to Fig. 1 and Fig. 2, the gear shaft 67 is provided with the marking plate drive wheel 68, and a distance from the outer wall of the marking plate drive wheel 68 to the axis of the gear shaft 67 is gradually increased. The lock hole panel 66 is further provided with an inner panel shell; a sliding rail is arranged in the inner panel shell; and the station marking plate 69 is arranged in the sliding rail in a sliding manner. The lateral edge of the station marking plate 69 is provided with a protrusion 2. The protrusion 2 is lapped on the outer wall of the outermost side of the marking plate drive wheel 68. Marks for indicating different colors and/or different working states are attached to the front surface of the station marking plate 69 in sequence. A lamp is mounted behind the station marking plate 69 to lighten and display these marks.
[0053] When the gear shaft 67 drives the marking plate drive wheel 68 to synchronously rotate, the marking plate drive wheel 68 will drive the protrusion 2 on the lateral edge of the station marking plate 69, so as to drive the station marking plate 69 to move up and down. Specifically, the key is inserted and rotated, and the station marking plate 69 is pushed by the marking plate drive wheel 68 to move upwards. When the key is rotated to 90 degrees, the drawer reaches the test position, and the mark, which represents the test position, on the station marking plate 69 is located on the station indication window 1. When the key is continued to be rotated, the station marking plate 69 is pushed by the marking plate drive wheel 68 to move upwards. When the rotating angle of the key is accumulated to 270 degrees, the drawer reaches the work position, and the mark, which represents the work position, on the station marking plate 69 is located on the station indication window 1. When the key is reversely rotated to 180 degrees, the station marking plate 69 is lowered due to the gravity action, and the mark, which represents the test position, on the station marking plate 69 is located on the station indication window 1. When the key continues to be rotated to 90 degrees, the station marking plate 69 is lowered due to the gravity action, and the mark, which represents the disconnection position, on the station marking plate 69 is located on the station indication window 1. The rotating angle here is only an example of the present embodiment. Different rotating angles can be set according to the above requirements, and marking positions for indicating working states are correspondingly set on the station !5 marking plate 69.
[0054] Since the indicator lamps, and the marks with different colors and characters are used, the working states of the drawer are clear at a glance at the station indication window.
[0055] Embodiment 2
[0056] The working principle of another embodiment of the invention is basically the same as the working principle of Embodiment 1, and has the basically same control mechanism as Embodiment 1. A main difference lies in a motion manner of the transmission mechanism.
[0057] Referring to Fig. 10, a transmission mechanism B 70 used in the present embodiment includes push structures on the left and right sides of the drawer. In the present embodiment, the structures of the push mechanisms on the two sides of the drawer are different. The left side and the right side in the present embodiment refer to the left side and the right side when seen from the outer side to the inner side of the drawer.
[0058] The structure of the push mechanism on the left side refers to Fig. 10 (seen from the inner side to the outer side of the drawer, not including a plug), Fig. 11 (seen from the outer side to the inner side of the drawer, including a plug), and Fig. 12. The push mechanism on the left side mainly includes a left rack plate 63, a work position rack plate 73, and a left transmission gear 720. The left rack plate 63 and the work position rack plate 73 both mesh with the left transmission gear 720. The left transmission gear 720 is provided with two layers of teeth. The work position rack plate 73 meshes with the lower layer of the left transmission gear 720, and the left rack plate 63 meshes with the upper layer of the left transmission gear 720. The layer, where the teeth meshing with the work position rack plate 73 are located, on the left transmission gear 720 has a partial gap, so that when the operation member is rotated to a certain angle (such as 90 degrees), the test position gear 712 moves, and the work position rack plate 73 does not move; and when the operation member continues to be rotated to a certain angle (such as 180 degrees), the work position rack plate 73 moves, and the test position gear 712 does not move. The left transmission gear 720 and the right transmission gear 721 in the present embodiment are also provided with gear limiting sheets 5. The gap portions on the left transmission gear 720 and the right transmission gear 721 are respectively limited by the gear teeth and the gear limiting sheets 5 along two sides of an axial direction. It should be noted that the left transmission gear 720 meshing with the left rack plate 63 and the work position rack plate 73 respectively is not limited to the above-mentioned two-layer structure illustrated in the present embodiment, as long as the left transmission gear 720 at least includes two layers of gear teeth meshing with the left rack plate 63 and the work position rack plate 73 respectively. The left rack plate 63 !5 and the work position rack plate 73 are not limited to forming meshing layers according to the above sequence, either, as long as it is ensured that the left rack plate 63 and the work position rack plate 73 respectively mesh with the gear teeth on different layers on the left transmission gear 720. However, at this moment, the setting of each layer of gear teeth on the left transmission gear 720 still needs to ensure that when the operation member is rotated to a certain angle (such as 90 degrees), the test position gear 712 moves, and the work position rack plate 73 does not move, and that when the operation member continues to be rotated to a certain angle (such as 180 degrees), the work position rack plate 73 moves, and the test position gear 712 does not move.
[0059] The structure of the push mechanism on the right side refers to Fig. 10, Fig. 11 and
Fig. 13. The push mechanism on the right side includes a right rack plate 62, a test position gear 712, a work position rack plate 73, and a right transmission gear 721. The right rack plate 62, the test position gear 712 and the work position rack plate 73 all mesh with the right transmission gear 721. The right transmission gear 721 is provided with two layers of teeth. The test position gear 712 and the work position rack plate 73 respectively mesh with the upper layer of the right transmission gear 721, and the right rack plate 62 meshes with the lower layer of the right transmission gear 721. The lateral edge of the test position push block 713 is provided with clamping teeth. The test position gear 712 includes a lower gear tooth layer meshing with the right transmission gear 721 and an upper gear tooth layer meshing with the clamping teeth on the lateral edge of the test position push block 713. The layer where the teeth meshing with the work position rack plate 73 are located, of the right transmission gear 721 and the layer, where the teeth meshing with the right transmission gear 721 are located, of the test position gear 712 have partial gaps, so that when the operation member is rotated to a certain angle (such as 90 degrees), the test position gear 712 moves, and the work position rack plate 73 does not move; and when the operation member continues to be rotated to a certain angle (such as 180 degrees), the work position rack plate 73 moves, and the test position gear 712 does not move. It should be noted that the right transmission gear 721 meshing with the right rack plate 62, the test position gear 712 and the work position rack plate 73 respectively is not limited to the above-mentioned two-layer structure illustrated in the present embodiment, as long as the right transmission gear 721 at least includes two layers of gear teeth meshing with the right rack plate 62, the test position gear 712 and the work position rack plate 73 respectively. The right rack plate 62, the test position gear 712 and the work position rack plate 73 are not limited to forming meshing layers according to the above sequence, either, as long as it is ensured that the right rack plate !5 62, the test position gear 712 and the work position rack plate 73 respectively mesh with the gear teeth on different layers on the right transmission gear 721. However, at this moment, the setting of each layer of gear teeth on the right transmission gear 721 still needs to ensure that when the operation member is rotated to a certain angle (such as 90 degrees), the test position gear 712 moves, and the work position rack plate 73 does not move, and that when the operation member continues to be rotated to a certain angle (such as 180 degrees), the work position rack plate 73 moves, and the test position gear 712 does not move. It should be noted that the test position gear 712 meshing with the right transmission gear 721 and the test position push block 713 respectively is not limited to the above-mentioned two-layer structure illustrated in the present embodiment, as long as the test position gear 712 at least includes two layers of gear teeth meshing with the right transmission gear 721 and the test position push block 713 respectively. The right transmission gear 721 and the test position push block 713 are not limited to forming meshing layers according to the above sequence, either, as long as it is ensured that the right transmission gear 721 and the test position push block 713 respectively mesh with the gear teeth on different layers on the test position gear 712. However, at this moment, the setting of each layer of gear teeth on the test position gear 712 still needs to ensure that when the operation member is rotated to a certain angle (such as 90 degrees), the test position gear 712 moves, and the work position rack plate 73 does not move, and that when the operation member continues to be rotated to a certain angle (such as 180 degrees), the work position rack plate 73 moves, and the test position gear 712 does not move. Further, the right transmission gear 721 meshing with the right rack plate 62, the test position gear 712 and the work position rack plate 73 respectively may also use the structure of the transmission gear 72 in Embodiment 1. At this moment, the test position gear 712 meshing with the right transmission gear 721 needs to use full teeth on a tooth layer meshing with the right transmission gear 721. At this moment, it can still be realized that when the operation member is rotated to a certain angle (such as 90 degrees), the test position gear 712 moves, and the work position rack plate 73 does not move, and that when the operation member continues to be rotated to a certain angle (such as 180 degrees), the work position rack plate 73 moves, and the test position gear 712 does not move.
[0060] The structure of the test position push block 713 refers to Fig. 13. The test position push block 713 is fixedly connected to the test position contact 4; the work position rack plate 73 is fixedly connected to the work position push plate 731; and the work position push plate is fixedly connected to the work position contact 3. When the test position gear 712 moves, the test position push block 713 is driven to move, and then the test position contact 4 !5 is pushed to move. Therefore, electrical connection is established between the test position contact 4 and a test position socket (not shown in the figure), so as to reach a test position. When the work position rack plate 73 moves, the work position push plate 731 pushes the work position contact 3 to move. Therefore, electrical connection is established between the work position contact 3 and a work position socket (not shown in the figure), so as to reach a work position.
[0061] When the drawer is at the work position, if the operation member is reversely rotated to a certain angle (such as 180 degrees), the work position rack plate 73 reversely moves, and the test position gear 712 does not move. The work position push plate 731 pulls the work position contact 3 to reversely move and leave the work position socket (not shown in the figure), so that the electrical connection between the work position contact 3 and the work position socket (not shown in the figure) is cut off to reach a test position. If the operation member is continued to be reversely rotated to a certain angle (such as 90 degrees), the test position gear 712 reversely moves to drive the test position push block 713 to reversely move, and the work position rack plate 73 does not move. The test position push block 713 pulls the test position contact 4 to reversely move and leave the test position socket (not shown in the figure), so that the electrical connection between the test position contact 4 and the test position socket (not shown in the figure) is cut off to reach a disconnection position. Therefore, one operation tool can realize, by means of rotation of the control mechanism, regulation and control of the disconnection position, the test position and the work position.
[0062] Although the invention has been disclosed as above in preferred embodiments, the embodiments are not intended to limit the invention. Any equivalent changes or modifications made without departing from the spirit and scope of the invention also belong to the protection scope of the invention. Therefore, the protection scope of the invention should be based on the content defined by the claims of this application as the standard.
Claims (10)
1. An alternate push mechanism for drawers, wherein including a control mechanism, a push mechanism, a work position contact, and a test position contact, wherein the control mechanism includes a first gear linkage mechanism, a left rack plate, and a right rack plate; the push mechanism includes a second gear linkage mechanism and a third gear linkage mechanism; the first gear linkage mechanism is driven by an operation mechanism outside a drawer panel, so as to control the left and right rack plates inside the drawer panel to move towards each other in opposite directions or move away from each other in opposite directions; the left and right rack plates realize sequential connection to the test position contact and the work position contact and sequential disconnection from the test position contact and the work position contact, respectively, through the linkage action with the second gear linkage mechanism and the third gear linkage mechanism.
2. The alternate push mechanism for the drawers as recited in claim 1, wherein the structure of the second gear linkage mechanism and the structure of the third gear linkage mechanism are the same.
3. The alternate push mechanism for the drawers as recited in claim 2, wherein the second gear linkage mechanism or the third gear linkage mechanism includes a transmission gear, a test position rack plate connected with the test position contact, and a work position rack plate connected with the work position contact; the transmission gear includes a tooth layer meshing with the test position rack plate, a tooth layer meshing with the work position rack plate, and a tooth layer meshing with a rack plate in the control mechanism; the tooth layer, which meshes with the test position rack plate, on the transmission gear and the tooth layer, which meshes with the work position rack plate, on the transmission gear are both provided !5 with partial gaps, so that when the operation mechanism is rotated to a first angle, the test position rack plate moves, and the work position rack plate does not move, and when the operation mechanism continues to be rotated to a second angle, the work position rack plate moves, and the test position rack plate does not move.
4. The alternate push mechanism for the drawers as recited in claim 1, wherein the structure of the second gear linkage mechanism and the structure of the third gear linkage mechanism are different.
5. The alternate push mechanism for the drawers as recited in claim 4, wherein the second gear linkage mechanism includes a left transmission gear and a work position rack plate connected with the work position contact; the left transmission gear includes a tooth layer meshing with the work position rack plate, and a tooth layer meshing with a left rack plate in the control mechanism; the tooth layer, which meshes with the work position rack plate, on the left transmission gear is provided with partial gaps, so that when the operation mechanism is rotated to a first angle, the test position gear of the third gear linkage mechanism moves, and the work position rack plate does not move, and when the operation mechanism continues to be rotated to a second angle, the work position rack plate moves, and the test position gear does not move; and the third gear linkage mechanism includes a right transmission gear, a test position gear connected with the test position contact, and a work position rack plate connected with the work position contact; the right transmission gear includes a tooth layer meshing with the test position gear, a tooth layer meshing with the work position rack plate, and a tooth layer meshing with a right rack plate in the control mechanism; the tooth layer, which meshes with the work position rack plate, on the right transmission gear is provided with partial gaps, and the tooth layer, which meshes with the test position gear, on the right transmission gear or the tooth layer, which meshes with the transmission gear, on the test position gear, is provided with partial gaps, so that when an operation mechanism is rotated to a first angle, the test position gear moves, and the work position rack plate does not move, and when the operation mechanism continues to be rotated to a second angle, the work position rack plate moves, and the test position gear does not move.
6. The alternate push mechanism for the drawers as recited in claim 3 or 5, wherein the transmission gear or the test position gear is further provided with a gear limiting sheet; and the gap portions on the transmission gear are limited by gear teeth and the gear limiting sheet respectively along two sides of an axial direction.
7. The alternate push mechanism for the drawers as recited in claim 1, wherein the control mechanism includes a right rack plate, a left rack plate, a driven gear, and a driving gear; the driven gear meshes with the driving gear; at the same time, the right rack plate and the left rack plate are distributed on the inner and outer sides of the driven gear, and mesh with the driven gear; and the operation mechanism realizes, by means of controlling the driving gear to rotate, that the right rack plate and the left rack plate move towards each other in opposite directions or move away from each other in opposite directions.
8. The alternate push mechanism for the drawers as recited in claim 7, wherein the driven gear is a bevel gear, or the driven gear and the driving gear are both bevel gears.
9. The alternate push mechanism for the drawers as recited in claim 5, wherein including a test position push block, wherein the test position contact is fixed on the test position push block; the lateral edge of the test position push block is provided with clamping teeth; the test position gear includes a first tooth layer meshing with the right transmission gear, and a second tooth layer meshing with the clamping teeth on the lateral edge of the test position push block; the right transmission gear drives the test position gear to rotate, so as to push the test position push block to move and then establish electrical connection between the test position contact and a test position socket.
10. The alternate push mechanism for the drawers as recited in claim 1, wherein including a display mechanism, wherein the display mechanism includes a lock hole panel and a station marking plate; the lock hole panel is provided with a station indication window configured to display a station state; a gear shaft of the driving gear is fixedly connected with a marking plate drive wheel; a distance from the outer wall of the marking plate drive wheel to the axis of the gear shaft is gradually increased; the station marking plate may be disposed in a region, which corresponds to the station indication window, on the inner side of the lock hole panel in a manner of sliding up and down relative to the lock hole panel; the lateral edge of the station marking plate is provided with a protrusion; and the protrusion is lapped onto the outer wall of the outermost side of the marking plate drive wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020103232A AU2020103232A4 (en) | 2018-04-08 | 2020-11-04 | Alternate push mechanism for drawers |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810313476.9 | 2018-04-08 | ||
| PCT/CN2018/088972 WO2019196173A1 (en) | 2018-04-08 | 2018-05-30 | Alternative propulsion mechanism for drawer |
| AU2020103232A AU2020103232A4 (en) | 2018-04-08 | 2020-11-04 | Alternate push mechanism for drawers |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2018/088972 Division WO2019196173A1 (en) | 2018-04-08 | 2018-05-30 | Alternative propulsion mechanism for drawer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020103232A4 true AU2020103232A4 (en) | 2021-01-14 |
Family
ID=74103418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020103232A Ceased AU2020103232A4 (en) | 2018-04-08 | 2020-11-04 | Alternate push mechanism for drawers |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2020103232A4 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675773A (en) * | 2021-08-23 | 2021-11-19 | 浙江迪思威电气股份有限公司 | Handcart advancing device for metal armored movable switch cabinet |
| CN115039981A (en) * | 2022-05-23 | 2022-09-13 | 深圳市拓迈科技有限公司 | Prison is with medicine management and control cabinet |
| CN117656106A (en) * | 2023-11-15 | 2024-03-08 | 泉州通维科技有限责任公司 | A fully automatic unlocking actuator for low-voltage drawer-type switch cabinets |
| CN119009726A (en) * | 2024-06-28 | 2024-11-22 | 内蒙古华毅达电力设备有限公司 | High-low voltage switch cabinet with good safety performance |
-
2020
- 2020-11-04 AU AU2020103232A patent/AU2020103232A4/en not_active Ceased
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675773A (en) * | 2021-08-23 | 2021-11-19 | 浙江迪思威电气股份有限公司 | Handcart advancing device for metal armored movable switch cabinet |
| CN113675773B (en) * | 2021-08-23 | 2023-10-13 | 浙江迪思威电气股份有限公司 | Handcart propulsion device for metal armoured movable switch cabinet |
| CN115039981A (en) * | 2022-05-23 | 2022-09-13 | 深圳市拓迈科技有限公司 | Prison is with medicine management and control cabinet |
| CN115039981B (en) * | 2022-05-23 | 2024-05-28 | 深圳市拓迈科技有限公司 | Medicine management and control cabinet for prison |
| CN117656106A (en) * | 2023-11-15 | 2024-03-08 | 泉州通维科技有限责任公司 | A fully automatic unlocking actuator for low-voltage drawer-type switch cabinets |
| CN119009726A (en) * | 2024-06-28 | 2024-11-22 | 内蒙古华毅达电力设备有限公司 | High-low voltage switch cabinet with good safety performance |
| CN119009726B (en) * | 2024-06-28 | 2025-02-21 | 内蒙古华毅达电力设备有限公司 | High-low voltage switch cabinet with good safety performance |
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