CN114229193A - High-precision mechanical storage box for physics teaching experiment - Google Patents
High-precision mechanical storage box for physics teaching experiment Download PDFInfo
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- CN114229193A CN114229193A CN202111610554.XA CN202111610554A CN114229193A CN 114229193 A CN114229193 A CN 114229193A CN 202111610554 A CN202111610554 A CN 202111610554A CN 114229193 A CN114229193 A CN 114229193A
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- box
- box body
- air bag
- fixedly connected
- box cover
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/04—Partitions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/10—Devices to locate articles in containers
- B65D25/101—Springs, elastic lips, or other resilient elements to locate the articles by pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/14—Non-removable lids or covers
- B65D43/16—Non-removable lids or covers hinged for upward or downward movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
- B65D81/051—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
- B65D81/052—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric filled with fluid, e.g. inflatable elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The invention belongs to the technical field of storage boxes, and particularly relates to a high-precision mechanical storage box for a physical teaching experiment, which comprises a rotary disc type resistance box storage box; the rotary disc type resistance box storage box comprises a box body, and a partition plate is arranged in the box body; a box cover is arranged at one end of the box body; the box body is divided into a plurality of spaces by the partition boards; the partition plates are arranged, so that two adjacent rotary disc type resistance boxes are separated, and the two adjacent rotary disc type resistance boxes cannot collide due to shaking in the storage box conveying process; by arranging the buffer air bag and the supplementary air bag, when the rotary disc type resistance box is stored in the storage box, the rotary disc type resistance box can be tightly propped in the inflated buffer air bag, so that the shaking of the rotary disc type resistance box in the carrying process is reduced; when the box cover is opened, the gas in the buffering air bag enters the air replenishing bag, and then a user can insert a hand between the side wall of the rotary disc type resistance box and the buffering air bag to take out the rotary disc type resistance box.
Description
Technical Field
The invention belongs to the technical field of storage boxes, and particularly relates to a high-precision mechanical storage box for a physical teaching experiment.
Background
Precision instruments refer to devices and apparatus for generating and measuring precision quantities, including observation, monitoring, measurement, verification, recording, transmission, transformation, display, analytical processing and control of precision quantities; physical experiment precision instruments commonly used by middle school students at present comprise a balance, a micrometer (micrometer), a vernier caliper, a thermometer, a standard resistor, a rotary disc type resistance box, a coulomb torsion balance and the like; the rotary disc type resistance box can be used for adjusting resistance in a direct current circuit, has a lower zero value resistance, is a common instrument for all laboratories, and is suitable for electric measurement and other experiments in schools, factories and scientific research units.
The rotary disc type resistance box which is the most common precision instrument in electrical measurement and electrical experiments is suitable for being used when the ambient air temperature is between 10 ℃ and 35 ℃ and the relative humidity is 30-80%, therefore, a plurality of resistance boxes are often stored in a storage box, the storage box for storing the resistance boxes is arranged in a shady and cool place of a laboratory, before the resistance box is used, a teacher can bring a student to carry the storage box for storing the resistance box from an equipment room to a laboratory for experiment, when the storage box for storing the rotary disc type resistance boxes is moved, the rotary disc type resistance boxes in the storage box are inevitably shaken, and a plurality of rotary disc type resistance boxes in the storage box are easy to collide, therefore, the mechanical damage of parts in the rotary disc type resistance box caused by vibration can cause the adjustment failure of the rotary disc type resistance box and the open circuit problem of individual gears of the rotary disc type resistance box; make the unable normal use of rotary disc resistance box, and then cause the student to carry out normal experimental operation, reduced the effect that the student tested the study.
In view of the above, the invention provides a high-precision mechanical storage box for physics teaching experiments, which solves the problem of mechanical damage caused by collision among a plurality of resistance boxes in the storage box.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a high-precision mechanical storage box for physical teaching experiments, and two adjacent rotary disc type resistance boxes are separated by arranging a partition plate, so that the two adjacent rotary disc type resistance boxes cannot collide due to shaking in the process of carrying the storage box; by arranging the buffer air bag and the supplementary air bag, when the rotary disc type resistance box is stored in the storage box, the rotary disc type resistance box can be tightly propped in the inflated buffer air bag, so that the shaking of the rotary disc type resistance box in the carrying process is reduced; when the box cover is opened, the gas in the buffering air bag enters the air replenishing bag, and then a user can insert a hand between the side wall of the rotary disc type resistance box and the buffering air bag to take out the rotary disc type resistance box.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a high-precision mechanical storage box for physical teaching experiments, which comprises a rotary disc type resistance box storage box; the rotary disc type resistance box storage box comprises:
the box body is internally provided with a partition plate; a box cover is arranged at one end of the box body; the box body is divided into a plurality of spaces by the partition boards; the surface of the clapboard is wrapped with a buffer air bag; the buffer air bag is fixedly connected with the bottom end of the box body; a supplementary air bag is fixedly arranged on one surface of the box cover close to the box body; the buffering air bag is communicated with the supplementary air bag through an air pipe;
the linkage mechanism is arranged between the box body and the box cover; the linkage mechanism is used for pushing and pulling the air replenishing bag; causing the supplemental bladder to expand and contract.
Preferably, the box cover is hinged with the box body; the partition plate is fixedly connected to the bottom end in the box body;
the linkage mechanism comprises a connecting rod and a hinge rod; the connecting rod is rotatably connected to the side wall in the box body; a push plate is arranged on one surface of the supplementary air bag, which is far away from the box cover; the hinged rod is rotationally connected with the push plate; the one end that the push pedal was kept away from to the hinge bar passes through the torsional spring rotation with the one end that the box was kept away from to the connecting rod and is connected.
A cleaning mechanism is arranged on one surface of the box cover close to the box body; the cleaning mechanism is used for cleaning the knob surface of the rotary resistance box.
Preferably, the cleaning mechanism comprises a cleaning tray; the side surface of the cleaning disc, which is far away from the box cover, is fixedly connected with a sponge block; the cleaning disc is rotatably connected with the box cover through a gear shaft;
a through groove is formed in the box cover; a rotating rod is rotatably connected in the through groove; a clockwork spring is arranged in the through groove; one end of the inner ring of the clockwork spring is fixedly connected with the surface of the rotating rod, and the other end of the inner ring of the clockwork spring is fixedly connected to the inner wall of the through groove; one end of the rotating rod, which is far away from the through groove, is fixedly connected with a transmission gear; a ratchet wheel disc is arranged between the transmission gear and the box cover; the ratchet wheel disc is fixedly connected to the surface of the rotating rod; a pawl is rotatably arranged at one end of the box cover close to the air bag through a torsion spring; a top rod is fixedly connected in the box body; when the box cover is covered, the ejector rod is contacted with one end of the rotating rod close to the box body; the ejector rod pushes the rotating rod to drive a transmission gear on the surface of the rotating rod to be in meshing transmission with the gear shaft; at the moment, the ratchet wheel disc is driven by the rotating rod to be in contact with the lower end face of the pawl.
Preferably, the surface of the box cover is provided with a gas filling module; the air-continuing module is used for providing air into the box body so as to enable the box body to be in a positive pressure state;
the gas-continuous module comprises a rubber strip; a convex rubber strip is fixedly arranged on the edge of one surface of the box cover close to the box body; the edge of the upper end of the box body is fixedly provided with a concave rubber strip; one surface of the box cover, which is far away from the box body, is fixedly connected with a corrugated air bag; one end of the rotating rod, which is far away from the transmission gear, is provided with threads; one end of the corrugated air bag, which is far away from the box cover, is connected with a nut in a rotating and sealing way; the nut is in threaded connection with the rotating rod; a square groove is formed in the center of the transmission gear; the ejector rod is matched with the square groove; the corrugated air bag is communicated with the through grooves, and air in the corrugated air bag enters the box body through gaps between the through grooves and the rotating rods.
Preferably, the inner wall of the box body is connected with a support rod in a sliding manner; the box cover is fixedly connected to one end of the support rod, which is far away from the box body; a handle is arranged on one surface of the box cover, which is far away from the support rod; the partition plate is fixedly connected with the support rod;
the linkage mechanism comprises a push plate; the push plate is fixedly connected to one end of the support rod, which is far away from the box cover; one end of the air supplementing bag is fixedly connected to one side of the push plate close to the inner wall of the box body, and the other end of the air supplementing bag is fixedly connected to the inner wall of the box body;
a cleaning mechanism is arranged above the partition plate; the cleaning mechanism is arranged on the inner wall of the box body; the cleaning mechanism is used for cleaning the knob surface of the rotary resistance box.
Preferably, the cleaning mechanism comprises a cleaning disc and a sponge block; the sponge block is fixedly connected to the lower end of the cleaning disc; the inner wall of the box body is rotatably connected with a worm; a worm wheel is arranged above the partition plate; the worm wheel is rotationally connected with the box body; the cleaning disc is fixedly connected to the lower end of the worm gear; the worm wheel and the worm are in meshed transmission; the surface of the worm is fixedly connected with a connecting gear;
a through groove is formed in the box cover; a rotating rod is connected in the through groove in a rotating and sealing manner; a clockwork spring is arranged in the through groove; two ends of the clockwork spring are respectively fixed on the surface of the rotating rod and the inner wall of the through groove; one end of the rotating rod, which is far away from the through groove, is fixedly connected with a transmission gear; when the box cover is closed; the transmission gear is in meshing transmission with the worm; a ratchet wheel disc is arranged between the transmission gear and the box cover; the ratchet wheel disc is fixedly connected to the surface of the rotating rod; one surface of the box cover close to the box body is fixedly provided with a telescopic module; the pawl is rotationally connected with the telescopic module through a torsion spring; when the lid is closed, the worm pushes the pawls to compress the telescoping modules so that the pawls are in sliding contact with the lower surface of the ratchet plate.
Preferably, the telescopic module comprises a first telescopic rod and a second telescopic rod; the first telescopic rod is fixedly connected with the box cover; one end of the first telescopic rod, which is far away from the box cover, is provided with a groove; the second telescopic rod is connected in the groove in a sliding manner; the second telescopic rod is fixedly connected with the bottom of the groove through a spring; the pawl is rotatably connected with one end, far away from the groove, of the second telescopic rod through a torsion spring; the surface of the box cover is provided with a gas filling module; the air-continuing module is used for providing air into the box body, so that the box body is in a positive pressure state.
Preferably, the gas-filling module comprises a convex rubber strip; the convex rubber strip is fixedly connected to the edge of one side of the box cover close to the partition plate; the edge of one side of the box body close to the box cover is fixedly connected with a concave rubber strip; one side of the box cover close to the partition board is fixedly connected with a clip-shaped corrugated air bag; the inner wall of the box body is fixedly connected with a return plate, and the surface of the corrugated air bag is provided with air holes.
Preferably, the cross section of the partition plate is in the shape of an isosceles trapezoid; the width of the upper end face of the partition board is larger than that of the lower end face of the partition board.
Preferably, a cavity is formed in the convex rubber strip; an air passage is formed in the box cover; one end of the air passage is communicated with the cavity; the other end is communicated with the corrugated air bag.
The invention has the following beneficial effects:
1. according to the invention, the two adjacent rotary disc type resistance boxes are separated by the partition plate, so that the two adjacent rotary disc type resistance boxes cannot collide due to shaking in the process of carrying the storage box; by arranging the buffer air bag and the supplementary air bag, when the rotary disc type resistance box is stored in the storage box, the rotary disc type resistance box can be tightly propped in the inflated buffer air bag, so that the shaking of the rotary disc type resistance box in the carrying process is reduced; when the box cover is opened, the gas in the buffering air bag enters the air supplementing bag, and then a user can insert a hand between the side wall of the rotary disc type resistance box and the buffering air bag to take out the rotary disc type resistance box.
2. According to the invention, the sponge block is arranged, so that the skin care product on the surface of the knob is wiped off, the problem of slipping of the student rotating the knob when the rotary disc type resistance box is used next time is avoided, the normal and stable use of the rotary disc type resistance box is ensured, and the practical application effect of the invention is further improved.
Drawings
The invention is further described with reference to the following figures and embodiments.
FIG. 1 is a perspective view of the present invention with a gear shaft installed;
FIG. 2 is a schematic view of the structure of the present invention with a gear shaft mounted;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a perspective view of the present invention with the connecting gear installed;
FIG. 5 is a schematic view of the present invention with a connecting gear installed;
FIG. 6 is an enlarged view at B in FIG. 5;
in the figure: 1. a box body; 11. a partition plate; 12. a buffer air bag; 13. an air tube; 14. a connecting rod; 15. a hinged lever; 16. a top rod; 17. a worm; 171. a connecting gear; 18. a worm gear; 19. a return plate; 2. a box cover; 21. supplementing the air bag; 22. pushing the plate; 23. a through groove; 24. a rotating rod; 241. a transmission gear; 242. a ratchet wheel disc; 243. a pawl; 244. a square groove; 245. a clockwork spring; 25. a strut; 26. a handle; 27. a first telescopic rod; 271. a groove; 28. a second telescopic rod; 29. an airway; 3. cleaning the disc; 31. a sponge block; 32. a gear shaft; 4. a rubber strip; 41. a corrugated air bag; 411. air holes; 42. a nut; 43. a cavity.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the high-precision instrument storage box for physics teaching experiments according to the present invention comprises a rotary disc type resistance box storage box; the rotary disc type resistance box storage box comprises:
the box body 1, a clapboard 11 is arranged in the box body 1; one end of the box body 1 is provided with a box cover 2; the partition boards 11 divide the interior of the box body 1 into a plurality of spaces; the surface of the clapboard 11 is wrapped with a buffer air bag 12; the buffering air bag 12 is fixedly connected with the bottom end of the box body 1; a supplementary air bag 21 is fixedly arranged on one surface of the box cover 2 close to the box body 1; the buffering air bag 12 is communicated with the supplementary air bag 21 through an air pipe 13;
the linkage mechanism is arranged between the box body 1 and the box cover 2; the linkage mechanism is used for pushing and pulling the air replenishing bag 21; causing the supplemental bladder 21 to expand and contract;
among the prior art, when moving the storage box of depositing the rotating disc type resistance box, inevitably can cause the rotating disc type resistance box in the storage box to take place to rock, cause rotating disc type resistance box and box 1 or other rotating disc type resistance box to bump easily, thereby lead to the inside spare part of rotating disc type resistance box to receive vibrations and take place mechanical damage, cause the rotating disc type resistance box to adjust inefficacy, and the individual gear problem of opening circuit of rotating disc type resistance box, make the unable normal use of rotating disc type resistance box, and then cause the unable normal experimental operation that carries on of student, the effect that the student tested and learned has been reduced.
When the box cover 2 is in work, the linkage mechanism pulls the air supplementing bag 21 to extend in the opening process of the box cover 2; the gas in the buffering air bag 12 enters the supplementary air bag 21, when the box cover 2 is closed, the linkage mechanism pushes the supplementary air bag 21 to contract, so that the gas in the supplementary air bag 21 enters the buffering air bag 12, and the buffering air bag 12 performs buffering protection on the knob type resistance box; when a worker stores the rotary disc type resistance box, the rotary disc type resistance box is firstly placed into the box body 1 partitioned by the partition plate 11, the partition plate 11 is wrapped by the buffering air bag 12, the peripheral side walls of the rotary disc type resistance box in the space of the partition plate 11 are wrapped by the buffering air bag 12, at the moment, the worker covers the box cover 2 on the upper end of the box body 1, the upper end surface of the rotary disc type resistance box is contacted with the supplementary air bag 21, in the process that the box cover 2 is covered on the upper end of the box body 1, the supplementary air bag 21 in the box cover 2 is extruded by the linkage mechanism, so that the gas in the supplementary air bag 21 enters the buffering air bag 12 through the gas pipe 13, the buffering air bag 12 is inflated and expanded, the expanded buffering air bag 12 is abutted against the side walls of the rotary disc type resistance box, the left-right shaking amplitude of the rotary disc type resistance box in the storage box in the process of carrying is reduced or avoided, thereby preventing the swinging rotary disc type resistance box protected by the buffer air bag 12 from colliding with the box body 1 and other rotary disc type resistance boxes, preventing the mechanical damage of parts in the rotary disc type resistance box caused by vibration, ensuring the stable adjustment of the rotary disc type resistance box, avoiding the problem of circuit break of individual gears of the rotary disc type resistance box caused by collision, simultaneously, in the process of opening the box cover 2, the air supplement bag 21 extends and expands under the pulling of the linkage mechanism, so that the space in the supplementary air bag is increased, the air pressure is reduced, the air in the buffering air bag 12 enters the supplementary air bag 21 under the action of the atmospheric pressure, the buffering air bag 12 does not abut against the side wall of the rotary disc type resistance box any more, therefore, a user can conveniently insert a hand between the side wall of the rotary disc type resistance box and the buffering air bag 12, and the user can conveniently take out the rotary disc type resistance box from the box body 1 partitioned by the partition plate 11; after the box is closed, the box is locked by the lock catch sheet on the box cover 2 and the lock catch on the box body 1, so that the box cover 2 is prevented from being reopened;
according to the invention, the partition plate 11 is arranged, so that two adjacent rotary disc type resistance boxes are separated, and the two adjacent rotary disc type resistance boxes cannot collide due to shaking in the process of carrying the storage box; by arranging the buffer air bag 12 and the supplement air bag 21, when the rotary disc type resistance box is stored in the storage box, the rotary disc type resistance box can be tightly abutted by the inflated buffer air bag 12, and the shaking of the rotary disc type resistance box in the carrying process is reduced; when the box cover 2 is opened, the gas in the buffering airbag 12 enters the supplementary airbag 21, so that a user can insert a hand between the side wall of the rotary disc type resistance box and the buffering airbag 12 to take out the rotary disc type resistance box.
As an embodiment of the present invention in which the cover 2 is flip-chip connected to the case 1,
the box cover 2 is hinged with the box body 1; the partition board 11 is fixedly connected to the bottom end in the box body 1;
the linkage mechanism comprises a connecting rod 14 and a hinge rod 15; the connecting rod 14 is rotatably connected to the side wall in the box body 1; a push plate 22 is arranged on one surface of the supplementary air bag 21 far away from the box cover 2; the hinged rod 15 is rotationally connected with the push plate 22; one end of the hinge rod 15 far away from the push plate 22 is rotatably connected with one end of the connecting rod 14 far away from the box body 1 through a torsion spring.
A cleaning mechanism is arranged on one surface of the box cover 2 close to the box body 1; the cleaning mechanism is used for cleaning the knob surface of the rotary resistance box;
during work, the box cover 2 is turned over, so that the box cover 2 rotates towards the direction far away from the box body 1, at the moment, the box cover 2 drives the push plate 22 on the surface of the buffering air bag 12 to rotate, and meanwhile, the hinge rod 15 blocked by the push plate 22 synchronously rotates towards the direction far away from the box body 1 under the action of the restoring force of the torsion spring, and the connecting rod 14 is rotationally connected with the box body 1; in the process that the hinge rod 15 rotates along with the box cover 2, the hinge rod 15 pulls the connecting rod 14 until the hinge rod 15 and the connecting rod 14 are in the same straight line; during the process of overturning the hinge rod 15, the hinge rod 15 pulls the push plate 22, so that the push plate 22 pulls the supplementary air bag 21 to extend, at the moment, the air in the buffer air bag 12 continuously enters the supplementary air bag 21 through the air pipe 13 until the box cover 2 overturns and forms an angle of 100 degrees with the box body 1, the supplementary air bag 21 is fully extended, at the moment, the box cover 2 cannot rotate continuously under the pulling of the hinge rod 15 and the connecting rod 14 which are in the same straight line state, thereby limiting the opening and closing angle of the case cover 2, the invention avoids the situation that the case cover 2 is randomly turned over on the experiment operating platform because the case cover 2 is taken down from the case body 1 through the hinge joint of the case cover 2 and the case body 1, when a user carelessly turns the cover 2 over to other equipment on the experiment operating platform, the supplementary air bag 21 in the cover 2 is contacted with other sharp experiment equipment, when the user pushes the case cover 2 unintentionally, the equipment covered by the case cover 2 may scratch the supplementary air bag 21 in the case cover 2; when placing the rotary disc type resistance box in the storage box, drive push pedal 22 through upset case lid 2 downwards and rotate drive hinge bar 15 pivoted in, hinge bar 15 overcomes the torsion of torsional spring and takes place the pivoted towards connecting rod 14 direction under push pedal 22's promotion in hinge bar 15, hinge bar 15 is through promoting push pedal 22 extrusion filling gasbag 21, make the gas in the filling gasbag 21 get into buffering gasbag 12 through trachea 13, when covering on box 1 up to case lid 2, the contained angle between connecting rod 14 and the hinge bar 15 is zero, clean mechanism cleans the knob face of rotary disc type resistance box this moment.
As an embodiment of the present invention, the cleaning mechanism includes a cleaning tray 3; the side surface of the cleaning disc 3 far away from the case cover 2 is fixedly connected with a sponge block 31; the cleaning disc 3 is rotationally connected with the case cover 2 through a gear shaft 32;
a through groove 23 is formed in the box cover 2; a rotating rod 24 is rotatably connected in the through groove 23; a spring 245 is arranged in the through groove 23; one end of the inner ring of the clockwork spring 245 is fixedly connected with the surface of the rotating rod 24, and the other end of the inner ring is fixedly connected to the inner wall of the through groove 23; one end of the rotating rod 24, which is far away from the through groove 23, is fixedly connected with a transmission gear 241; a ratchet wheel disc 242 is arranged between the transmission gear 241 and the box cover 2; the ratchet wheel plate 242 is fixedly connected to the surface of the rotating rod 24; a pawl 243 is rotatably arranged at one end of the case cover 2 close to the air bag through a torsion spring; a top rod 16 is fixedly connected in the box body 1; when the box cover 2 is covered, the ejector rod 16 is contacted with one end of the rotating rod 24 close to the box body 1; the mandril 16 pushes the rotating rod 24 to drive the transmission gear 241 on the surface of the rotating rod to be meshed with the gear shaft 32 for transmission; at this time, the ratchet wheel disc 242 is driven by the rotating rod 24 to contact with the lower end surface of the pawl 243;
when the spiral resistance box works, after a user places the spiral resistance box in the box body 1, the rotating rod 24 is rotated through a tool, so that the rotating rod 24 drives the spiral spring 245 connected with the rotating rod to rotate, the rotating rod 24 stores force on the spiral spring 245, in the rotating process of the rotating rod 24, the rotating rod 24 drives the ratchet disc 242 on the surface to rotate, the pawl 243 slides along the tooth back of the ratchet disc 242, after the force storage of the spiral spring 245 is completed, the rotating rod 24 is in a reverse rotation state under the driving of the restoring force of the spiral spring 245, the ratchet disc 242 is driven to rotate due to the reverse rotation of the rotating rod 24, the pawl 243 is inserted into the tooth groove of the ratchet disc 242, the pawl 243 blocks the ratchet disc 242 to rotate reversely, the rotating rod 24 cannot rotate under the action of the restoring force of the spiral spring 245, and the spiral spring 245 is in a force storage state; when the box cover 2 rotates towards the direction close to the box body 1, the ejector rod 16 positioned in the box body 1 is contacted with one surface of the transmission gear 241 far away from the box cover 2, and the transmission gear 241 is driven by the box cover 2 to be continuously close to the ejector rod 16, so that the transmission gear 241 drives the rotating rod 24 to move towards the direction far away from the box body 1 under the extrusion of the ejector rod 16; at this time, the rotating rod 24 drives the ratchet disc 242 to move along the tip of the pawl 243 in a direction away from the box cover 2, when the box cover 2 covers the upper end of the box body 1, the tooth tip of the ratchet disc 242 crosses the pawl 243 and is located at one end close to the box body 1, at this time, the pawl 243 no longer blocks the ratchet disc 242, the transmission gear 241 is also meshed with the gear shaft 32 under the pushing of the ejector rod 16, at this time, the clockwork spring 245 in a force accumulation state drives the rotating rod 24 to rotate under the restoring force, so that the rotating rod 24 drives the gear shaft 32 to rotate through the transmission gear 241, so that the gear shaft 32 drives the cleaning disc 3 to rotate, so that the cleaning disc 3 drives the sponge block 31 at the lower end of the cleaning disc 3 to clean the knob surface of the rotary disc type resistance box, when the box cover 2 is opened and the clockwork needs to accumulate the clockwork on the clockwork spring 245, a user manually pushes the rotating rod 24, so that the rotating rod 24 drives the ratchet disc 242 to move away from the box cover 2, so that the pawls 243 engage the ratchet plate 242; when a student rotates a knob of the rotary disc type resistance box by hand, sweat is inevitably left on the knob to cause the phenomenon that the sweat adhered to the knob slips, so that the sponge block 31 absorbs the sweat adhered to the knob of the rotary disc type resistance box; because the dial plate in the knob of the rotary disc type resistance box is rusted to cause the knob to be difficult to rotate after being used for a long time, the arrangement of the sponge block 31 ensures that the rotary disc type resistance box can be normally and stably used when being used next time, and the actual application effect of the invention is further improved.
As an embodiment of the invention, the surface of the box cover 2 is provided with a gas filling module; the gas-continuous module is used for providing air for the box body 1 so that the box body 1 is in a positive pressure state;
the gas-continuous module comprises a rubber strip 4; a convex rubber strip 4 is fixedly arranged on the edge of one surface of the box cover 2 close to the box body 1; the edge of the upper end of the box body 1 is fixedly provided with a concave rubber strip 4; a corrugated air bag 41 is fixedly connected to one surface of the box cover 2 far away from the box body 1; one end of the rotating rod 24, which is far away from the transmission gear 241, is provided with threads; one end of the corrugated air bag 41, which is far away from the box cover 2, is connected with a nut 42 in a rotating and sealing way; the nut 42 is in threaded connection with the rotating rod 24; a square groove 244 is formed in the center of the transmission gear 241; the ejector rod 16 is matched with the square groove 244; the corrugated air bag 41 is communicated with the through groove 23, and the gas in the corrugated air bag 41 enters the box body 1 through a gap between the through groove 23 and the rotating rod 24;
when the rotary disc type resistance box works, the storage environment of the rotary disc type resistance box is 5-35 ℃; the relative humidity is 25% -80%, and for the southern May and the southern June, the air temperature is high, much rain and fog are caused, so that the relative humidity of the southern air is higher than 80% for a long time, and the stored rotary disc type resistance box is easy to damage; therefore, according to the invention, by arranging the rubber strip 4, when the box cover 2 is covered on the box body 1, the protruding end of the convex rubber strip 4 on the box cover 2 is inserted into the concave groove of the concave rubber strip 4 on the box body 1, so that the interior of the box body 1 is sealed, and therefore, external damp gas is prevented from entering the box body 1, and in humid weather, due to the connection and sealing effects of the threaded connection, the nut 42 is in threaded connection with the rotating rod 24, so that the gas in the corrugated air bag 41 cannot flow out from the connection position of the nut 42; the corrugated air bag 41 is made of rubber materials, so when the corrugated air bag 41 is not pressed by the nut 42, the corrugated air bag 41 can keep an expansion state under the action of self elasticity; when the box cover 2 is covered on the box body 1, the ejector rod 16 extends into the square groove 244, when a user rotates the nut 42, the rotating rod 24 is limited by the ejector rod 16 and cannot rotate, the nut 42 rotates downwards along the rotating rod 24, the nut 42 extrudes the corrugated air bag 41 to be close to the box cover 2, the rotating rod 24 is only rotatably connected in the through groove 23, and a sealing effect is not generated between the rotating rod 24 and the through groove 23, so that in the process of extruding the corrugated air bag 41, gas in the corrugated air bag 41 can enter the box body 1 through a gap between the rotating rod 24 and the through groove 23, the interior of the box body 1 is in a positive pressure state, the gas with high humidity outside the box body 1 is prevented from entering the box body 1, the rotary resistance box is prevented from being damaged due to the influence of damp air, the service life of the rotary resistance box is prolonged, and the actual application effect of the rotary resistance box is effectively improved.
As an embodiment of the present invention in which the box cover 2 is connected with the box body 1 in a drawing manner,
the inner wall of the box body 1 is connected with a supporting rod 25 in a sliding way; the box cover 2 is fixedly connected to one end of the support rod 25 far away from the box body 1; a handle 26 is arranged on one side of the box cover 2 far away from the support rod 25; the partition plate 11 is fixedly connected with the support rod 25;
the linkage mechanism includes a push plate 22; the push plate 22 is fixedly connected to one end of the support rod 25 far away from the box cover 2; one end of the air supplementing bag 21 is fixedly connected to one side of the push plate 22 close to the inner wall of the box body 1, and the other end of the air supplementing bag is fixedly connected to the inner wall of the box body 1;
a cleaning mechanism is arranged above the partition plate 11; the cleaning mechanism is arranged on the inner wall of the box body 1; the cleaning mechanism is used for cleaning the knob surface of the rotary resistance box;
when the rotary resistor box is in work, the buffer air bag 12 is not only wrapped on the surface of the partition plate 11, but also fixedly connected to one side of the support rods 25 close to each other, so that the buffer air bag 12 can wrap and buffer the periphery of the rotary resistor box, and the buffer air bag 12 is fixedly connected to the upper end of the support rod 25 below, so that the bottom end of the rotary resistor box can be buffered and protected; a user pulls the handle 26, so that the handle 26 pulls the box cover 2 to drive the support rod 25 to extend out in a direction away from the box body 1, at the moment, the support rod 25 drives the partition plate 11 and the rotary disc type resistor box between the partition plates 11 to continuously extend out of the box body 1, in the process that the support rod 25 extends out, the support rod 25 drives the push plate 22 to pull the supplementary air bag 21 to extend, so that gas in the buffer air bag 12 continuously enters the supplementary air bag 21 through the gas pipe 13 communicated with the buffer air bags 12 on the support rods 25 at two sides, at the moment, the gas in the buffer air bag 12 is reduced, the buffer air bag 12 is contracted and does not extrude the rotary disc type resistor box any more, the user can insert hands between the rotary disc type resistor box and the buffer air bags 12 conveniently, and the rotary disc type resistor box is convenient to be rolled out from the partition plates 11; when the rotary disc type resistance box needs to be stored, the rotary disc type resistance box is firstly placed in a space formed by the partition plate 11 and the support, then the push handle 26 is pushed to enable the support rod 25 to push the push plate 22 to slide towards the box body 1, at the moment, the supplement air bag 21 is continuously contracted under the pushing of the push plate 22, so that the gas in the supplement air bag 21 is continuously filled into the buffer air bag 12, the buffer air bag 12 is inflated and expanded, the expanded buffer air bag 12 is tightly abutted against the side wall of the rotary disc type resistance box, the amplitude of left-right shaking of the rotary disc type resistance box in the storage box in the process of carrying the storage box is reduced, the shaking rotary disc type resistance box is protected by the buffer air bag 12 from colliding with the box body 1 and other rotary disc type resistance boxes, the mechanical damage of parts in the rotary disc type resistance box due to shaking is prevented, and the stable adjustment of the rotary disc type resistance box is ensured, the problem of circuit breaking caused by collision of individual gears of the rotary disc type resistance box is avoided; by the stretching design of the storage box, the storage box is convenient to stack in a narrow environment, and a user can take out the stacked rotary disc type resistance box in the storage box for inspection; after the case was closed, dead with the case lock through the hasp piece on case lid 2 and the hasp on the box 1, avoid case lid 2 to open again.
As an embodiment of the present invention, the cleaning mechanism includes a cleaning tray 3 and a sponge block 31; the sponge block 31 is fixedly connected with the lower end of the cleaning disc 3; the inner wall of the box body 1 is rotatably connected with a worm 17; a worm wheel 18 is arranged above the clapboard 11; the worm wheel 18 is rotationally connected with the box body 1; the cleaning disc 3 is fixedly connected to the lower end of the worm gear 18; the worm wheel 18 and the worm 17 are in meshed transmission; the surface of the worm 17 is fixedly connected with a connecting gear 171;
a through groove 23 is formed in the box cover 2; a rotating rod 24 is connected in the through groove 23 in a rotating and sealing manner; a spring 245 is arranged in the through groove 23; two ends of the spring 245 are respectively fixed on the surface of the rotating rod 24 and the inner wall of the through groove 23; one end of the rotating rod 24, which is far away from the through groove 23, is fixedly connected with a transmission gear 241; when the box cover 2 is closed; the transmission gear 241 is in meshing transmission with the worm 17; a ratchet wheel disc 242 is arranged between the transmission gear 241 and the box cover 2; the ratchet wheel plate 242 is fixedly connected to the surface of the rotating rod 24; a telescopic module is fixedly arranged on one surface of the box cover 2 close to the box body 1; the pawl 243 is rotationally connected with the telescopic module through a torsion spring; when the lid 2 is closed, the worm 17 pushes the pawl 243 to compress the telescopic module, so that the pawl 243 is in sliding contact with the lower surface of the ratchet plate 242;
when the rotary rod 24 is used, when a user needs to clean the knob surface of the rotary disc type resistance box, the user firstly rotates the rotary rod 24 by using a tool; the rotating rod 24 drives the spring 245 connected with the rotating rod to rotate, the spring 245 is in a force accumulation state at the moment, in the process of rotating the rotating rod 24, the rotating rod 24 can drive the ratchet disc 242 on the surface to rotate, the pawl 243 slides along the tooth back of the ratchet disc 242, after the force accumulation of the spring 245 is completed, the rotating rod 24 is in a reverse rotation state under the drive of the restoring force of the spring 245, the ratchet disc 242 is driven to rotate due to the reverse rotation of the rotating rod 24, the pawl 243 is inserted into the tooth groove of the ratchet disc 242 at the moment, the pawl 243 blocks the ratchet disc 242 to rotate reversely, the rotating rod 24 cannot rotate under the action of the restoring force of the spring 245, and the spring 245 is in a force accumulation state at the moment; the user pushes the rotary disc type resistance box to be stored in the box body 1 through the handle 26, and at the moment, the box cover 2 drives the transmission gear 241 to be close to the connecting gear 171 of the worm 17 under the pushing of the handle 26; when the end of the worm 17 close to the box cover 2 contacts with the pawl 243, the end of the worm 17 close to the box cover 2 pushes the pawl 243 to press the telescopic module to contract, so that the pawl 243 slides along the ratchet teeth of the ratchet wheel 242, when the box cover 2 is closed, the connecting gear 171 is in meshing transmission with the transmission gear 241, and at the moment, the ratchet teeth on the ratchet wheel 242 and the pawl 243 are mutually staggered; the pawl 243 stops the ratchet, so that the spring 245 drives the rotating rod 24 to rotate under the action of the restoring force of the spring, the rotating rod 24 drives the connecting gear 171 to rotate through the transmission gear 241, the connecting gear 171 drives the worm 17 to rotate, the worm 17 is in transmission connection with the worm wheel 18, the worm 17 drives the worm wheel 18 to rotate, the worm wheel 18 drives the cleaning disc 3 to rotate, and the cleaning disc 3 drives the sponge block 31 at the lower end of the cleaning disc 3 to clean the knob surface of the rotary disc type resistance box; the knob surface of the rotary disc type resistance box is ensured to be clean and can be normally used, so that the practical application effect of the invention is effectively improved.
As an embodiment of the present invention, the telescopic module includes a first telescopic rod 27 and a second telescopic rod 28; the first expansion link 27 is fixedly connected with the box cover 2; a groove 271 is formed in one end, away from the box cover 2, of the first telescopic rod 27; the second expansion link 28 is slidably connected in the groove 271; the second expansion link 28 is fixedly connected with the bottom of the groove 271 through a spring; the pawl 243 is rotatably connected with one end of the second expansion link 28 far away from the groove 271 through a torsion spring; the surface of the box cover 2 is provided with a gas filling module; the gas-continuous module is used for providing air for the box body 1 so that the box body 1 is in a positive pressure state;
during operation, in the process that the user pushes the handle 26 to drive the case cover 2 to move towards the direction of the case body 1, the case cover 2 drives the first telescopic rod 27, the second telescopic rod 28 and the pawl 243 to move towards the inside of the case body 1 until the second telescopic rod 28 is contacted with the worm 17, the user continues to push the case cover 2 to enable the pawl 243 to continue to move towards the inside of the case body 1 under the driving of the case cover 2, and as the pawl 243 is blocked by the worm 17 in the case body 1, the pawl 243 drives the second telescopic rod 28 to extrude the spring to enter the first telescopic rod 27 under the blocking of the worm 17, and as the ratchet disc 242 continuously moves towards the inside of the case body 1 under the driving of the case body 1, the ratchet disc 242 slides along the tip of the pawl 243 towards the direction away from the case cover 2; until the ratchet plate 242 passes over the pawl 243, the ratchets on the ratchet plate 242 and the pawl 243 are displaced from each other, so that the pawl 243 no longer blocks the ratchet plate 242; and case lid 2 is closed completely this moment, and the user makes the gas blowout in the continuous gas module through the extrusion continuous gas module this moment to be in the malleation state in making the box 1.
As an embodiment of the present invention, the gas-filling module comprises a convex rubber strip 4; the convex rubber strip 4 is fixedly connected to the edge of one surface of the box cover 2 close to the partition plate 11; the edge of one side of the box body 1 close to the box cover 2 is fixedly connected with a concave rubber strip 4; one surface of the box cover 2 close to the clapboard 11 is fixedly connected with a zigzag corrugated air bag 41; the inner wall of the box body 1 is fixedly connected with a return plate 19, and the surface of the corrugated air bag 41 is provided with an air hole 411;
when the box cover 2 is in work, in the process that a user pushes the box cover 2 to move towards the box body 1, the box cover 2 drives the convex rubber strip 4 on the surface to continuously move towards the box body 1, so that the convex rubber strip 4 is continuously close to the concave rubber strip 4 on the opening edge of the box body 1, until the box cover 2 closes the box body 1, the protruding end of the convex rubber strip 4 enters the concave groove of the groove 271 rubber strip 4, at the moment, the inside of the box body 1 is in a sealing state, and because the corrugated air bag 41 is installed on one surface, close to the partition plate 11, of the box cover 2, and the corrugated air bag 41 is made of a rubber material, when the corrugated air bag 41 is not extruded by the return plate 19, the corrugated air bag 41 can keep an expansion state under the action of the elasticity of the corrugated air bag 41; the air holes 411 are formed in the two side walls of the corrugated air bag 41 and are close to the box cover 2, so that the corrugated air bag 41 close to the return plate 19 deforms, and the corrugated air bag 41 connected with the box cover 2 does not deform, thereby avoiding the problem that the air holes 411 are closed due to the corrugated air bag 41 which is extruded and deformed when the corrugated air bag 41 is extruded by the return plate 19, and ensuring that the air holes 411 close to the box cover 2 can be normally ventilated; before the opening of the box body 1 is blocked by the box cover 2, the corrugated air bag 41 is firstly contacted with the return plate 19 in the box body 1, so that the corrugated air bag 41 is blocked by the return plate 19, the return plate 19 extrudes the corrugated air bag 41, the air in the corrugated air bag 41 is extruded from the air hole 411 and is filled into the box body 1, when the convex rubber strip 4 is contacted with the concave rubber strip 4, the inside of the box body 1 is in a sealing state, and in the process that the convex rubber strip 4 is inserted into the concave rubber strip 4, the air in the corrugated air bag 41 is extruded and sprayed into the box body 1, so that the inside of the box body 1 is in a positive pressure state, thereby not only preventing the high-humidity air outside the box body 1 from entering the inside of the box body 1 and preventing the rotary disc type resistance box in the box 1 from being damaged by moisture, and further prolonging the service life of the rotary disc type resistance box; the negative pressure state in the box body 1 caused by long-time storage of the box body 1 is avoided, a user can conveniently open the storage box, the actual application effect of the storage box is effectively improved, and after the box cover 2 is opened, the user can manually stretch the corrugated air bag 41 to recover the corrugated air bag 41.
As an implementation applicable to both embodiments of the invention,
the cross section of the partition plate 11 is in an isosceles trapezoid shape; the width of the upper end face of the partition board 11 is larger than that of the lower end face of the partition board 11;
when the air-conditioning box works, a user closes the box cover 2 to enable the air in the air supplementing bag 21 to enter the buffering air bag 12, and the partition plate 11 is arranged to be isosceles trapezoid; therefore, the cross section of the inflated buffer airbag 12 is also isosceles trapezoid, as the gas is continuously inflated, the gas pressure in the buffer airbag 12 is increased, so that the gas partition plate 11 in the buffer airbag 12 generates pressure, as can be seen from the principle of the interaction force, the partition plate 11 generates pressure on the gas in the buffer airbag 12, so that the gas extrudes the inner wall of the buffer airbag 12, so that the buffer airbag 12 generates a force perpendicular to the inner wall of the buffer airbag 12 on the rotating disc type resistance box contacted with the buffer airbag, as the width of the upper end surface of the cross section of the partition plate 11 is greater than the width of the lower end surface of the partition plate 11, the direction of the extrusion force of the buffer airbag 12 on the rotating disc type resistance box is inclined downwards, as can be seen from the decomposition of the force, the buffer airbag 12 generates downward extrusion force on the rotating disc type resistance box, so that when the rotating disc type resistance box in the box 1 shakes due to the transportation of the storage box, the rotary disc type resistance box is extruded downwards by the buffer air bag 12, so that the vertical shaking of the rotary disc type resistance box is weakened, the problem that the rotary disc type resistance box is damaged due to collision with the upper box body 1 is solved, and the practical application effect of the invention is further improved.
As an implementation applicable to both embodiments of the invention,
a cavity 43 is formed in the convex rubber strip 4; an air passage 29 is formed in the box cover 2; one end of the air passage 29 is communicated with the cavity 43; the other end is communicated with the corrugated air bag 41;
during operation, for the turnover rotary disc type resistance box storage box, after a user closes the box cover 2, when the corrugated air bag 41 is extruded by rotating the nut 42, part of air in the corrugated air bag 41 enters the cavity 43 of the convex rubber strip 4 through the air passage 29 on the surface of the box cover 2, so that the convex rubber strip 4 is inflated and expanded, the convex rubber strip 4 is filled in the concave groove of the concave rubber strip 4, and the concave rubber strip 4 and the convex rubber strip 4 are connected in a sealing manner more tightly; for the pull-out rotary disc type resistance box storage box, when a user closes the box cover 2, the convex rubber strip 4 of the box cover 2 is in contact with the concave rubber strip 4 of the box body 1, at the moment, the box body 1 starts to be in a sealing state, the box cover 2 is continuously pushed, the convex rubber strip 4 is inserted into the concave rubber strip 4, the corrugated air bag 41 is extruded to continuously inject air into the box body 1, the interior of the box body 1 is in a pressure increasing state, at the moment, partial air in the box body 1 enters the cavity 43 of the convex rubber strip 4 through the air passage 29, the cavity 43 of the convex rubber strip 4 and the box body 1 are both in a positive pressure state, the convex rubber strip 4 is inflated and expanded, the sealing effect of the rubber strip 4 is further improved, and the practicability of the invention is further improved.
The specific working process is as follows:
the linkage mechanism pulls the air supplement bag 21 to extend in the process of opening the box cover 2; the gas in the buffering air bag 12 enters the supplementary air bag 21, when the box cover 2 is closed, the linkage mechanism pushes the supplementary air bag 21 to contract, so that the gas in the supplementary air bag 21 enters the buffering air bag 12, and the buffering air bag 12 performs buffering protection on the knob type resistance box; when a worker stores the rotary disc type resistance box, the rotary disc type resistance box is firstly placed into the box body 1 partitioned by the partition plate 11, the partition plate 11 is wrapped by the buffering air bag 12, the peripheral side walls of the rotary disc type resistance box in the space of the partition plate 11 are wrapped by the buffering air bag 12, at the moment, the worker covers the box cover 2 on the upper end of the box body 1, the upper end surface of the rotary disc type resistance box is contacted with the supplementary air bag 21, in the process that the box cover 2 is covered on the upper end of the box body 1, the supplementary air bag 21 in the box cover 2 is extruded by the linkage mechanism, so that the gas in the supplementary air bag 21 enters the buffering air bag 12 through the gas pipe 13, the buffering air bag 12 is inflated and expanded, the expanded buffering air bag 12 is abutted against the side walls of the rotary disc type resistance box, the left-right shaking amplitude of the rotary disc type resistance box in the storage box in the process of carrying is reduced or avoided, thereby preventing the swinging rotary disc type resistance box protected by the buffer air bag 12 from colliding with the box body 1 and other rotary disc type resistance boxes, preventing the mechanical damage of parts in the rotary disc type resistance box caused by vibration, ensuring the stable adjustment of the rotary disc type resistance box, avoiding the problem of circuit break of individual gears of the rotary disc type resistance box caused by collision, simultaneously, in the process of opening the box cover 2, the air supplement bag 21 extends and expands under the pulling of the linkage mechanism, so that the space in the supplementary air bag is increased, the air pressure is reduced, the air in the buffering air bag 12 enters the supplementary air bag 21 under the action of the atmospheric pressure, the buffering air bag 12 does not abut against the side wall of the rotary disc type resistance box any more, therefore, a user can conveniently insert a hand between the side wall of the rotary disc type resistance box and the buffering air bag 12, and the user can conveniently take out the rotary disc type resistance box from the box body 1 partitioned by the partition plate 11; after the box is closed, the box is locked by the lock catch sheet on the box cover 2 and the lock catch on the box body 1, so that the box cover 2 is prevented from being reopened;
the foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a high-accuracy instrument storage box of physics teaching experiment which characterized in that: the device comprises a rotary disc type resistance box storage box; the rotary disc type resistance box storage box comprises:
the box body (1), a clapboard (11) is arranged in the box body (1); a box cover (2) is installed at one end of the box body (1); the partition plates (11) divide the interior of the box body (1) into a plurality of spaces; the surface of the clapboard (11) is wrapped with a buffer air bag (12); the buffer air bag (12) is fixedly connected with the bottom end of the box body (1); a supplementary air bag (21) is fixedly arranged on one surface of the box cover (2) close to the box body (1); the buffering air bag (12) is communicated with the supplementary air bag (21) through an air pipe (13);
the linkage mechanism is arranged between the box body (1) and the box cover (2); the linkage mechanism is used for pushing and pulling the air replenishing bag (21); so that the supplementary airbag (21) is expanded and contracted.
2. The high-precision instrument storage box for physics teaching experiments as claimed in claim 1, wherein: the box cover (2) is hinged with the box body (1); the clapboard (11) is fixedly connected with the bottom end in the box body (1);
the linkage mechanism comprises a connecting rod (14) and a hinge rod (15); the connecting rod (14) is rotatably connected to the side wall in the box body (1); a push plate (22) is arranged on one surface of the supplementary air bag (21) far away from the box cover (2); the hinged rod (15) is rotationally connected with the push plate (22); one end of the hinged rod (15) far away from the push plate (22) is rotatably connected with one end of the connecting rod (14) far away from the box body (1) through a torsion spring.
A cleaning mechanism is arranged on one surface of the box cover (2) close to the box body (1); the cleaning mechanism is used for cleaning the knob surface of the rotary resistance box.
3. The high-precision instrument storage box for physics teaching experiments as claimed in claim 2, wherein: the cleaning mechanism comprises a cleaning disc (3); the side surface of the cleaning disc (3) far away from the case cover (2) is fixedly connected with a sponge block (31); the cleaning disc (3) is rotationally connected with the case cover (2) through a gear shaft (32);
a through groove (23) is formed in the box cover (2); a rotating rod (24) is rotatably connected in the through groove (23); a clockwork spring (245) is arranged in the through groove (23); one end of the inner ring of the clockwork spring (245) is fixedly connected with the surface of the rotating rod (24), and the other end of the inner ring is fixedly connected to the inner wall of the through groove (23); one end of the rotating rod (24) far away from the through groove (23) is fixedly connected with a transmission gear (241); a ratchet wheel disc (242) is arranged between the transmission gear (241) and the box cover (2); the ratchet wheel disc (242) is fixedly connected to the surface of the rotating rod (24); a pawl (243) is rotatably arranged at one end of the box cover (2) close to the air bag through a torsion spring; a mandril (16) is fixedly connected in the box body (1); when the box cover (2) is covered, the ejector rod (16) is contacted with one end of the rotating rod (24) close to the box body (1); the ejector rod (16) pushes the rotating rod (24) to drive the transmission gear (241) on the surface of the rotating rod to be meshed with the gear shaft (32) for transmission; at the moment, the ratchet wheel disc (242) is driven by the rotating rod (24) to be in contact with the lower end surface of the pawl (243).
4. The high-precision instrument storage box for physics teaching experiments as claimed in claim 3, wherein: the surface of the box cover (2) is provided with a gas filling module; the gas-continuous module is used for providing air for the interior of the box body (1) so that the interior of the box body (1) is in a positive pressure state;
the gas-continuous module comprises a rubber strip (4); a convex rubber strip (4) is fixedly arranged on the edge of one surface of the box cover (2) close to the box body (1); the edge of the upper end of the box body (1) is fixedly provided with a concave rubber strip (4); a corrugated air bag (41) is fixedly connected to one surface of the box cover (2) far away from the box body (1); one end of the rotating rod (24) far away from the transmission gear (241) is provided with threads; one end of the corrugated air bag (41) far away from the box cover (2) is connected with a nut (42) in a rotating and sealing manner; the nut (42) is in threaded connection with the rotating rod (24); a square groove (244) is formed in the center of the transmission gear (241); the ejector rod (16) is matched with the square groove (244); the corrugated air bag (41) is communicated with the through groove (23), and air in the corrugated air bag (41) enters the box body (1) through a gap between the through groove (23) and the rotating rod (24).
5. The high-precision instrument storage box for physics teaching experiments as claimed in claim 1, wherein: the inner wall of the box body (1) is connected with a supporting rod (25) in a sliding manner; the box cover (2) is fixedly connected to one end of the support rod (25) far away from the box body (1); a handle (26) is arranged on one surface of the box cover (2) far away from the support rod (25); the partition plate (11) is fixedly connected with the support rod (25);
the linkage mechanism comprises a push plate (22); the push plate (22) is fixedly connected with one end of the support rod (25) far away from the box cover (2); one end of the air supplementing bag (21) is fixedly connected to one side of the push plate (22) close to the inner wall of the box body (1), and the other end of the air supplementing bag is fixedly connected to the inner wall of the box body (1);
a cleaning mechanism is arranged above the partition plate (11); the cleaning mechanism is arranged on the inner wall of the box body (1); the cleaning mechanism is used for cleaning the knob surface of the rotary resistance box.
6. The high-precision instrument storage box for physics teaching experiments as claimed in claim 5, wherein: the cleaning mechanism comprises a cleaning disc (3) and a sponge block (31); the sponge block (31) is fixedly connected with the lower end of the cleaning disc (3); the inner wall of the box body (1) is rotatably connected with a worm (17); a worm wheel (18) is arranged above the partition plate (11); the worm wheel (18) is rotationally connected with the box body (1); the cleaning disc (3) is fixedly connected with the lower end of the worm wheel (18); the worm wheel (18) and the worm (17) are in meshed transmission; the surface of the worm (17) is fixedly connected with a connecting gear (171);
a through groove (23) is formed in the box cover (2); a rotating rod (24) is connected in the through groove (23) in a rotating and sealing manner; a clockwork spring (245) is arranged in the through groove (23); two ends of the clockwork spring (245) are respectively fixed on the surface of the rotating rod (24) and the inner wall of the through groove (23); one end of the rotating rod (24) far away from the through groove (23) is fixedly connected with a transmission gear (241); when the box cover (2) is closed; the transmission gear (241) is in meshed transmission with the worm (17); a ratchet wheel disc (242) is arranged between the transmission gear (241) and the box cover (2); the ratchet wheel disc (242) is fixedly connected to the surface of the rotating rod (24); one surface of the box cover (2) close to the box body (1) is fixedly provided with a telescopic module; the pawl (243) is rotationally connected with the telescopic module through a torsion spring; when the cover (2) is closed, the worm (17) pushes the pawl (243) to compress the telescopic module, so that the pawl (243) is in sliding contact with the lower surface of the ratchet disc (242).
7. The high-precision instrument storage box for physics teaching experiments as claimed in claim 6, wherein: the telescopic module comprises a first telescopic rod (27) and a second telescopic rod (28); the first telescopic rod (27) is fixedly connected with the box cover (2); one end of the first telescopic rod (27) far away from the box cover (2) is provided with a groove (271); the second expansion link (28) is connected in the groove (271) in a sliding manner; the second telescopic rod (28) is fixedly connected with the bottom of the groove (271) through a spring; the pawl (243) is rotatably connected with one end, far away from the groove (271), of the second telescopic rod (28) through a torsion spring; the surface of the box cover (2) is provided with a gas filling module; the gas-continuous module is used for providing air for the interior of the box body (1) so that the interior of the box body (1) is in a positive pressure state.
8. The high-precision instrument storage box for physics teaching experiments as claimed in claim 7, wherein: the gas-continuous module comprises a convex rubber strip (4); the convex rubber strip (4) is fixedly connected to the edge of one surface, close to the partition plate (11), of the box cover (2); the edge of one surface of the box body (1) close to the box cover (2) is fixedly connected with a concave rubber strip (4); one surface of the box cover (2) close to the clapboard (11) is fixedly connected with a clip-shaped corrugated air bag (41); the inner wall of the box body (1) is fixedly connected with a return plate (19), and the surface of the corrugated air bag (41) is provided with an air hole (411).
9. The high-precision instrument storage box for physics teaching experiments as claimed in claim 4 or 8, wherein: the cross section of the partition plate (11) is in an isosceles trapezoid shape; the width of the upper end face of the partition board (11) is larger than that of the lower end face of the partition board (11).
10. The high-precision instrument storage box for physics teaching experiments as claimed in claim 9, wherein: a cavity (43) is formed in the convex rubber strip (4); an air passage (29) is formed in the box cover (2); one end of the air passage (29) is communicated with the cavity (43); the other end is communicated with the corrugated air bag (41).
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| CN202111610554.XA CN114229193B (en) | 2021-12-27 | 2021-12-27 | High-precision instrument storage box for physical teaching experiments |
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| CN202111610554.XA CN114229193B (en) | 2021-12-27 | 2021-12-27 | High-precision instrument storage box for physical teaching experiments |
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