Experiment table power-off device

Abstract

The utility model relates to the technical field of experiment tables, and provides an experiment table power-off device which comprises a table body, and a switch is fixedly installed on the right side of the table body. According to the experiment table power-off device, through cooperative use of a telescopic rod structure and a cross rod structure, a circular ring is pulled, all telescopic rods are driven to rotate clockwise at the bottom of a cross rod through a fixing rod, then a plug of a power supply connecting wire is inserted into a corresponding jack inner cavity, and then the circular ring is loosened; all the telescopic rods automatically rotate and reset under the action of a torsion shaft installed between the telescopic rods and the cross rod, in the rotating and resetting process, when the telescopic rods touch a power supply connecting wire, the telescopic rods in contact with the power supply connecting wire are shrunk, and the other telescopic rods which do not touch the telescopic rods rotate and reset, and meanwhile, a first reset spring and a second reset spring are used for driving the telescopic rods which rotate and reset to move rightwards; therefore, the possibility of sudden power failure of the experiment table in the use process is effectively reduced, and the experiment table is convenient to overhaul after power failure.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental tables, and in particular to a power-off device for an experimental table. Background Art

[0002] As the name suggests, the laboratory bench is used for experimental learning. With the progress of society, teaching cannot only impart written knowledge, but also requires certain practical experiments to teach students so that students can understand more and more comprehensive knowledge. However, during use, due to various unexpected reasons, the laboratory bench suddenly loses power when in use, causing the laboratory bench and the surrounding environment to become dark, which is not conducive to the normal use of the laboratory bench.

[0003] After searching, the Chinese patent announcement number is CN213691075U, which discloses a test bench for teaching experiments. In this patent, a battery is set in the lighting device to deal with the poor lighting problem caused by emergencies such as power outages. However, with the development of modern technology, the sudden power outages in daily life are mainly caused by the loosening and falling of the power connection line and the leakage or power outage at the installation point of the power connection line due to water ingress or other reasons. If only a simple lighting structure is set, and the lighting structure is set at the experimental operation position on the top of the test bench, this method cannot reduce the possibility of accidental power outages on the test bench, and it cannot provide assistance for maintenance after accidental power outages. Utility Model Content

[0004] The utility model provides a power-off device for a test bench, which solves the problems in the related art that the possibility of sudden power off during use of the test bench cannot be reduced and that it is not conducive to maintenance of the test bench after power off.

[0005] The technical scheme of the utility model is as follows: a power-off device for a laboratory table comprises a table body, a switch is fixedly installed on the right side of the table body, a plurality of experimental instruments are fixedly installed on the top of the table body, a plurality of mounting holes are opened on the outer surface of the table body, a cover plate is movably installed on the right side of the top of the mounting hole through a rotating shaft, a groove is opened on the outer surface of the cover plate, a lighting lamp is detachably installed on the bottom of the inner cavity of the mounting hole, a side door is arranged at the lower left side of the front side of the table body, a strip groove 1 is opened at the lower right side of the front side of the table body, a baffle is movably installed on the front side of the strip groove 1 through a rotating shaft, and a light is detachably installed on the bottom of the inner cavity of the mounting hole. A plurality of jacks are provided on the rear side, a strip groove two is provided on the top of the inner cavity of the strip groove one, a reset spring one is fixedly installed on the rear side of the inner cavity of the strip groove two, a slider is fixedly installed on the front side of the reset spring one, a cross bar is fixedly installed on the bottom of the slider, a plurality of telescopic rods are movably installed on the bottom of the cross bar through a torsion axis, a fixed rod is fixedly installed on the middle part of the cross bar, a ring is fixedly installed on the front side of the fixed rod, a plurality of strip grooves three are provided on the bottom of the inner cavity of the strip groove one, a reset spring two is fixedly installed on the rear side of the inner cavity of the strip groove three, and a magnetic block is fixedly installed on the front side of the reset spring two.

[0006] Preferably, the mounting holes are evenly arranged on the top surface of the table body, the top of the side door, and the left side of the baffle, so that when the power is off for the experimental bench and the laboratory, pressing the switch will light up the lamps arranged in all the mounting holes, and combined with the position of the mounting holes, the lamps can illuminate the experimental instrument area on the top of the experimental bench, the battery placed at the side door, and the power connection cord plug placed at the baffle, so as to facilitate the subsequent maintenance of power outage accidents.

[0007] Preferably, the cover plate is made of a transparent material, and the groove is located at the edge of the cover plate, so that when in use, the material properties of the cover plate are utilized to facilitate light to shine through after the lighting lamp is turned on.

[0008] Preferably, a battery is placed in the inner cavity of the table body behind the side door, and the battery is electrically connected to all lights and switches through wires. When the lab bench is in use and suddenly loses power, pressing the switch turns on the light. The installation position of the light facilitates quick maintenance of the lab bench after power failure.

[0009] Preferably, the shape of the outer surface of the baffle is larger than the shape of the front side of the strip groove one, and the middle part of the baffle is hollow, so that when in use, the baffle can prevent water or other impurities from entering the inner cavity of the strip groove one and affecting the installation of the power plug and the socket. At the same time, the hollow design of the middle part of the baffle facilitates the passage of the power connection line from the bottom of the baffle after installation.

[0010] Preferably, the bottom of the sliding block extends out of the bottom of the second strip groove, and the bottom of the cross bar is higher than the top of the highest insertion hole.

[0011] Preferably, the inner cavity of the telescopic rod is provided with a spring, and the inner cavity of the torsion shaft is provided with a torsion spring, so that when the telescopic rod rotates under the action of an external force, the torsion shaft also rotates; after the external force disappears, the telescopic rod automatically resets under the elastic force of the torsion spring in the inner cavity of the torsion shaft.

[0012] Preferably, the fixing rod is located on the outer surface of the non-contractable part in the middle of the telescopic rod, and the fixing rod is fixedly installed on the front side of all the telescopic rods, so that when in use, the manual stretching ring can drive all the telescopic rods to rotate in the strip groove one through the fixing rod.

[0013] Preferably, the bottom of the telescopic rod extends into the inner cavity of the strip groove three on the same side, the right bottom of the telescopic rod and the front top of the magnetic block are both inclined, and the bottom material of the telescopic rod is made of metal material, so that when in use, first pull the ring to make the fixed rod rotate clockwise, thereby driving all the telescopic rods to rotate clockwise at the bottom of the cross bar, then insert the plug of the power connection line into the corresponding jack inner cavity, and then loosen the ring, so that all the telescopic rods automatically rotate and reset under the action of the torsion shaft installed between the cross bar, during the rotation and reset process, when the power connection line is touched, the contacted telescopic rod shrinks, and the remaining telescopic rods that are not touched rotate and reset, at the same time, the reset spring 1 also drives the cross bar and all the telescopic rods to move backward, and the bottom of the reset part of the telescopic rods extends into the strip groove three at the corresponding position in the bottom direction and is assembled with the magnetic block movably installed in the inner cavity of the strip groove three through the reset spring 2, and the reset spring 1 and the reset spring 2 are used to drive the telescopic rod after rotation and reset to move to the right, so that all the telescopic rods are used to squeeze the plug of the power connection line fixedly installed in the inner cavity of the jack backward.

[0014] Preferably, the number and distribution positions of the telescopic rods match the number and distribution positions of the strip grooves three, and the telescopic rods and the strip grooves three are evenly distributed in the inner cavity of the strip groove one.

[0015] The working principle and beneficial effects of the utility model are:

[0016] 1. The power-off device of the experimental bench, through the coordinated use of the telescopic rod structure and the cross bar structure, pulls the ring, drives all the telescopic rods to rotate clockwise at the bottom of the cross bar through the fixed rod, then inserts the plug of the power connection line into the corresponding jack cavity, and then loosens the ring, so that all the telescopic rods automatically rotate and reset under the action of the torsion shaft installed between the cross bar. During the rotation and reset process, when the power connection line is touched, the contacted telescopic rod shrinks, and the other telescopic rods that are not touched rotate and reset. At the same time, the reset spring 1 and the reset spring 2 are used to drive the telescopic rod after rotation and reset to move to the right, so as to squeeze the plug of the power connection line fixedly installed in the inner cavity of the jack, so as to effectively reduce the possibility of sudden power failure of the experimental bench during use and facilitate the maintenance of the experimental bench after power failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a schematic diagram of the front appearance of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the back appearance of the overall structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the side appearance of the overall structure of the utility model after being cut apart;

[0021] Figure 4 It is a schematic diagram of the back appearance of the overall structure of the utility model after being cut open;

[0022] Figure 5 For this utility model Figure 3 A schematic diagram of the structure at A;

[0023] Figure 6 For this utility model Figure 4 Schematic diagram of the structure at point B.

[0024] In the figure: 1. table body; 2. switch; 3. experimental instrument; 4. mounting hole; 5. cover plate; 6. groove; 7. lighting lamp; 8. side door; 9. strip groove one; 10. baffle; 11. socket; 12. strip groove two; 13. reset spring one; 14. slider; 15. cross bar; 16. telescopic rod; 17. fixed rod; 18. ring; 19. strip groove three; 20. reset spring two; 21. magnet. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 to Figure 6As shown, a power-off device for a laboratory bench comprises a table body 1, a switch 2 is fixedly installed on the right side of the table body 1, a plurality of laboratory instruments 3 are fixedly installed on the top of the table body 1, a plurality of mounting holes 4 are opened on the outer surface of the table body 1, and the mounting holes 4 are evenly arranged on the top surface of the table body 1, the top of the side door 8 and the left side of the baffle 10, so that when the power is off for the laboratory bench and the laboratory, the switch 2 is pressed to light up the lighting lamps 7 arranged in all the mounting holes 4, and the positions of the mounting holes 4 are matched so that the lighting lamps 7 can illuminate the area of ​​the laboratory instrument 3 on the top of the laboratory bench, the battery placed at the side door 8 and the power connection line plug placed at the baffle 10, so as to facilitate the subsequent maintenance of power-off accidents, and a cover plate 5 is movably installed on the right side of the top of the mounting hole 4 through a rotating shaft, and the material of the cover plate 5 is a transparent material The structure is constructed such that the groove 6 is located at the edge of the cover plate 5, so that when in use, the material properties of the cover plate 5 are utilized to facilitate the light to shine out after the lamp 7 is turned on. A groove 6 is provided on the outer surface of the cover plate 5, and a lamp 7 is detachably installed at the bottom of the inner cavity of the mounting hole 4. A side door 8 is provided at the lower left front side of the table body 1, and a battery is placed in the inner cavity of the table body 1 behind the side door 8. The battery is electrically connected to all the lamps 7 and the switch 2 through wires. Therefore, when in use, if the power of the experimental bench is suddenly cut off, the switch 2 is pressed at this time to turn on the lamp 7, and the installation position of the lamp 7 is utilized to facilitate the rapid maintenance of the experimental bench after the power is cut off. A strip groove 9 is provided at the lower right front side of the table body 1, and a baffle 10 is movably installed on the front side of the strip groove 9 through a rotating shaft, and the shape of the outer surface of the baffle 10 is larger than the strip groove 9. The front side of the groove 19 is shaped such that the middle part of the baffle 10 is hollow. Thus, when in use, the baffle 10 can be used to prevent water or other impurities from entering the inner cavity of the strip groove 19 and affecting the installation of the power plug and the socket 11. At the same time, the hollow design of the middle part of the baffle 10 facilitates the installation of the power connection line through the bottom of the baffle 10. A plurality of sockets 11 are provided on the rear side of the strip groove 19. A strip groove 2 12 is provided on the top of the inner cavity of the strip groove 19. A reset spring 13 is fixedly installed on the rear side of the inner cavity of the strip groove 2 12. A slider 14 is fixedly installed on the front side of the reset spring 13. The bottom of the slider 14 extends out of the bottom of the strip groove 2 12. The bottom of the cross bar 15 is higher than the top of the highest socket 11. The bottom of the slider 14 is fixedly installed with the cross bar 15. A plurality of telescopic rods 16 are movably mounted at the bottom of the cross bar 15 through a torsion shaft, the number and distribution positions of the telescopic rods 16 match the number and distribution positions of the strip grooves three 19, the telescopic rods 16 and the strip grooves three 19 are evenly distributed in the inner cavity of the strip groove one 9, the inner cavity of the telescopic rod 16 is provided with a spring, and the inner cavity of the torsion shaft is provided with a torsion spring, so that when the telescopic rod 16 rotates under the action of an external force, the torsion shaft also rotates, and after the external force disappears, the telescopic rod 16 automatically resets under the elastic force of the torsion spring in the inner cavity of the torsion shaft, a fixed rod 17 is fixedly mounted in the middle of the cross bar 15, the position of the fixed rod 17 is located on the outer surface of the non-contractible part in the middle of the telescopic rod 16, and the fixed rod 17 is fixedly mounted on the front side of all telescopic rods 16, so that when in use,The manually stretched circular ring 18 can drive all telescopic rods 16 to rotate in the strip groove 19 through the fixed rod 17. The circular ring 18 is fixedly installed on the front side of the fixed rod 17. The bottom of the telescopic rod 16 extends into the inner cavity of the strip groove 3 19 on the same side. The right bottom of the telescopic rod 16 and the front top of the magnetic block 21 are both inclined. The bottom material of the telescopic rod 16 is made of metal. When in use, first pull the circular ring 18 to make the fixed rod 17 rotate clockwise, thereby driving all telescopic rods 16 to rotate clockwise at the bottom of the cross bar 15. Then insert the plug of the power connection line into the inner cavity of the corresponding jack 11, and then loosen the circular ring 18, so that all telescopic rods 16 automatically rotate and reset under the action of the torsion shaft installed between the cross bar 15. During the rotation and reset process, when the power connection line is touched, the contact The telescopic rod 16 contracts, while the remaining telescopic rods 16 that have not been touched rotate and reset. At the same time, the reset spring 13 also drives the cross bar 15 and all the telescopic rods 16 to move backward, and the bottom of the reset part of the telescopic rod 16 extends into the bar groove 3 19 at the corresponding position in the bottom direction and is assembled with the magnetic block 21 movably installed in the inner cavity of the bar groove 3 19 through the reset spring 2 20. The reset spring 13 and the reset spring 2 20 are used to drive the telescopic rod 16 that has been rotated and reset to move to the right, so that all the telescopic rods 16 are used to squeeze the plug of the power connection line fixedly installed in the inner cavity of the jack 11 backward. A plurality of bar grooves 3 19 are provided at the bottom of the inner cavity of the bar groove 19, and the reset spring 2 20 is fixedly installed on the rear side of the inner cavity of the bar groove 3 19, and the magnetic block 21 is fixedly installed on the front side of the reset spring 20.

[0027] Working principle: When using, first assemble the test bench correctly, install properly functioning lighting lamps 7 in all mounting holes 4, and put the battery into the inner cavity of the table body 1 behind the side panel 8, then rotate and open the baffle 10, and then pull the ring 18 to make the fixed rod 17 rotate clockwise, thereby driving all the telescopic rods 16 to rotate clockwise at the bottom of the cross bar 15, and then insert the plug of the power connection line into the corresponding inner cavity of the jack 11, and then loosen the ring 18, so that all the telescopic rods 16 automatically rotate and reset under the action of the torsion shaft installed between the cross bar 15. During the rotation and reset process, when the power connection line is touched, the contacted telescopic rod 16 shrinks, and the other telescopic rods 16 that are not touched rotate and reset. At the same time, the reset spring 13 also drives the cross bar 15 and all telescopic rods 16 to move backward. The bottom of the partial telescopic rod 16 after the reset is extended into the strip groove three 19 at the corresponding position in the bottom direction and is assembled with the magnetic block 21 movably installed in the inner cavity of the strip groove three 19 through the reset spring two 20. The reset spring one 13 and the reset spring two 20 are used to drive the telescopic rod 16 after the rotation reset to move to the right, so that all the telescopic rods 16 are used to squeeze the plug of the power connection line fixedly installed in the inner cavity of the jack 11 backward, so as to prevent the power connection line plug from being easily separated from the jack 11 by external force during use. Then the baffle 10 is rotated to reset, and the baffle 10 is used to prevent water or other impurities from entering the inner cavity of the strip groove one 9 during use to affect the installation of the power plug and the jack 11. At the same time, the hollow design of the middle part of the baffle 10 facilitates the installation of the power connection line from the bottom of the baffle 10;

[0028] When a power outage occurs on the test bench, pressing the switch 2 will light up the lighting lamps 7 provided in all the mounting holes 4. Combined with the positions of the mounting holes 4, the lighting lamps 7 can illuminate the experimental instrument 3 area on the top of the test bench, the battery placed at the side door 8, and the power connection line plug placed at the baffle 10, so as to facilitate the subsequent maintenance of the power outage.

[0029] In summary, compared with general similar devices, this kind of power-off device for the laboratory bench has the advantages of effectively reducing the possibility of sudden power outages of the laboratory bench during use and facilitating maintenance of the laboratory bench after power outage.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power-off device for a test bench, characterized in that: The table body (1) comprises a table body (1), a switch (2) is fixedly installed on the right side of the table body (1), a plurality of experimental instruments (3) are fixedly installed on the top of the table body (1), a plurality of mounting holes (4) are provided on the outer surface of the table body (1), a cover plate (5) is movably installed on the right side of the top of the mounting hole (4) through a rotating shaft, a groove (6) is provided on the outer surface of the cover plate (5), a lighting lamp (7) is detachably installed on the bottom of the inner cavity of the mounting hole (4), a side door (8) is provided on the lower left side of the front side of the table body (1), a strip groove (9) is provided on the lower right side of the front side of the table body (1), a baffle (10) is movably installed on the front side of the strip groove (9) through a rotating shaft, a plurality of jacks (11) are provided on the rear side of the strip groove (9), and a plurality of jacks (11) are provided on the inner side of the strip groove (9). The top of the cavity is provided with a strip groove 2 (12), a return spring 1 (13) is fixedly installed on the rear side of the inner cavity of the strip groove 2 (12), a slider (14) is fixedly installed on the front side of the return spring 1 (13), a cross bar (15) is fixedly installed on the bottom of the slider (14), a plurality of telescopic rods (16) are movably installed on the bottom of the cross bar (15) through a torsion shaft, a fixed rod (17) is fixedly installed on the middle part of the cross bar (15), a circular ring (18) is fixedly installed on the front side of the fixed rod (17), a plurality of strip grooves 3 (19) are provided on the bottom of the inner cavity of the strip groove 1 (9), a return spring 2 (20) is fixedly installed on the rear side of the inner cavity of the strip groove 3 (19), and a magnetic block (21) is fixedly installed on the front side of the return spring 2 (20).

2. A test bench power-off device according to claim 1, characterized in that: The mounting holes (4) are evenly arranged on the top surface of the table body (1), the top of the side door (8) and the left side of the baffle (10).

3. A test bench power-off device according to claim 1, characterized in that: The cover plate (5) is made of a transparent material, and the groove (6) is located at the edge of the cover plate (5).

4. A test bench power-off device according to claim 1, characterized in that: A storage battery is placed in the inner cavity of the table body (1) behind the side door (8), and the storage battery is electrically connected to all the lighting lamps (7) and the switch (2) through wires.

5. A test bench power-off device according to claim 1, characterized in that: The shape of the outer surface of the baffle plate (10) is larger than the front side shape of the strip groove (9), and the middle part of the baffle plate (10) is hollow.

6. A test bench power-off device according to claim 1, characterized in that: The bottom of the sliding block (14) extends out of the bottom of the second strip groove (12), and the bottom of the crossbar (15) is higher than the top of the highest insertion hole (11).

7. A test bench power-off device according to claim 1, characterized in that: The inner cavity of the telescopic rod (16) is provided with a spring, and the inner cavity of the torsion shaft is provided with a torsion spring.

8. A test bench power-off device according to claim 1, characterized in that: The fixing rod (17) is located on the outer surface of the non-contractable portion in the middle of the telescopic rod (16), and the fixing rod (17) is fixedly mounted on the front side of all the telescopic rods (16).

9. A test bench power-off device according to claim 1, characterized in that: The bottom of the telescopic rod (16) extends into the inner cavity of the third strip groove (19) on the same side, the right bottom of the telescopic rod (16) and the front top of the magnetic block (21) are both inclined, and the bottom material of the telescopic rod (16) is made of metal.

10. A test bench power-off device according to claim 1, characterized in that: The number and distribution positions of the telescopic rods (16) match the number and distribution positions of the strip grooves three (19), and the telescopic rods (16) and the strip grooves three (19) are evenly distributed in the inner cavity of the strip groove one (9).

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