CN112963716A - Turnover screen turner with safety protection and hand clamping prevention functions - Google Patents
Turnover screen turner with safety protection and hand clamping prevention functions Download PDFInfo
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- CN112963716A CN112963716A CN202110320598.2A CN202110320598A CN112963716A CN 112963716 A CN112963716 A CN 112963716A CN 202110320598 A CN202110320598 A CN 202110320598A CN 112963716 A CN112963716 A CN 112963716A
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- shell
- fixedly connected
- outside
- safety protection
- hand
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
- F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/03—Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/04—Tables or desks for office equipment, e.g. typewriters, keyboards characterised by means for holding or fastening typewriters or computer equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/10—Arrangements for locking
- F16C11/103—Arrangements for locking frictionally clamped
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0226—Hinges
Abstract
The invention relates to the technical field of turnover screens, and discloses a turnover screen tilter with a safety protection and hand-clamping prevention function, which comprises a shell, wherein the interior of the shell is rotatably connected with a fixed disc, the interior of the fixed disc is movably connected with a rotation detection mechanism, when an operator uses the turnover screen tilter, a rotating shaft is driven to rotate through the operation of a motor, the rotating shaft drives a rotating plate to drive to complete the exhibition and the accommodation of a display, when the rotating speed of the motor is too high, the rotating shaft rotates to drive a supporting shell to move, the supporting shell moves to drive an ejector rod to move, the centrifugal force applied to the ejector rod at the moment is larger than the elastic force of a telescopic spring, the ejector rod is thrown out, the ejector rod is clamped with a connecting shell, the ejector rod moves to drive a speed reduction disc to move, the rotating shaft is decelerated under the action of a friction plate and a ring groove, so that the effect of decelerating, the device accords with the technical idea of intelligent manufacturing.
Description
Technical Field
The invention relates to the technical field of turnover screens, in particular to a turnover screen turnover device with a safety protection and hand-clamping prevention function.
Background
The turnover screen turnover device is a necessary thing for developing an intelligent hidden conference system to a certain stage, the liquid crystal display turnover device is mainly applied to various high-grade conference halls, trading halls, high-grade multimedia network systems and office furniture places, when the turnover device is opened, the liquid crystal display screen can be automatically turned to a required angle, and the keyboard can be automatically lifted to be flush with a desktop.
Present upset screen turner rotates through the motor drive pivot thereby to make the upset screen overturn, but because motor slew velocity is very fast, thereby people can use the converter to limit its slew velocity, but the converter breaks down very easily under the effect of external factor, at this moment motor slew velocity will accelerate, it damages to lead to the display in the desk to take place very easily, and present upset screen turner can overturn with the table only, it is very easy tong when placing the desktop with the hand not noticed by people, thereby make the user be injured.
Therefore, in order to solve the problems, a turnover screen turnover device with a safety protection and hand-clamping prevention function is needed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the turnover screen turnover device with the safety protection and hand clamping prevention functions, which has the advantages that the rotation speed of the rotating shaft can be reduced when the rotation speed is high, and the rotation and the storage can be stopped when a user places a hand on a desktop, so that the problems that the display is damaged due to the high rotation speed of the rotating shaft and the hand is clamped when the user does not notice the hand are solved.
(II) technical scheme
In order to achieve the purposes that the rotating shaft can be decelerated when the rotating speed is high and can be stopped to rotate and store when a user places a hand on a table top, the invention provides the following technical scheme: the utility model provides a upset screen turner with hand function is prevented pressing from both sides in safety protection, includes the shell, the inside of shell is rotated and is connected with the fixed disk, and the inside swing joint of fixed disk has rotation detection mechanism, and the outside swing joint of fixed disk has forced reduction gears, the inside fixedly connected with external power source of shell.
Preferably, the rotation detection mechanism includes pivot, support shell, block subassembly, speed reduction disc, connection shell, electro-magnet, commentaries on classics board, and the inside of shell is rotated and is connected with the pivot, and the inside fixedly connected with support shell of pivot, the outside swing joint of support shell have the block subassembly, and the inside sliding connection of fixed disk has the speed reduction disc, and the inside fixedly connected with connection shell of speed reduction disc connects the shell, connects the inside fixedly connected with electro-magnet of shell, and the outside fixedly connected with commentaries on classics board of pivot.
Preferably, the square hole has been seted up on the surface of pivot, supports shell fixed connection in the inboard of square hole, and the round hole has been seted up on the surface of speed reduction disc, connects shell fixed connection in the inboard of round hole, and the inside of connecting the shell is provided with the feeler block, and the annular has been seted up to the internal surface of fixed disk, and the outside of speed reduction disc is provided with the slider, and the outside of slider is provided with the friction disc, and slider sliding connection is in the inboard of annular, and the outside of commentaries on classics board is provided with the crashproof.
Preferably, the block subassembly is including the current variant, the ejector pin, expanding spring, lead electrical pillar, the inside of supporting the shell is provided with the current variant, the outside sliding connection who supports the shell has the ejector pin, the outside fixedly connected with expanding spring of ejector pin, the inside fixedly connected with who supports the shell leads electrical pillar, it has two to lead electrical pillar, two lead the equal swing joint in the inside of current variant of electrical pillar, two are no less than to expanding spring's quantity, the equal fixed connection of one end at the support shell is kept away from to all expanding spring, the specification phase-match and the position of ejector pin are corresponding with the specification phase-match of connecting the shell.
Preferably, the forced reduction mechanism comprises a fixed shell, a cylinder and a fixed shell fixedly connected with the inside of the push rod fixing disk, the cylinder is fixedly connected with the inside of the fixed shell, and the push rod is slidably connected with the outside of the cylinder.
Preferably, the number of the fixed shells is not less than six, all the fixed shells are uniformly distributed outside the fixed disc at equal angles, and friction plates are arranged outside the push rod.
Preferably, the interior of the housing is movably connected with a trigger mechanism.
Preferably, the trigger mechanism comprises a light sensing assembly and a temperature sensing assembly, the light sensing assembly is fixedly connected inside the shell, and the temperature sensing assembly is movably connected inside the shell.
Preferably, the light sense subassembly includes lamp pearl, shading shell, transparent shell, photo resistance, and the inside fixedly connected with lamp pearl of shell, the inside fixedly connected with shading shell of shell, the outside of shading shell is inlayed and is had transparent shell, the inside fixedly connected with photo resistance of shading shell, the specification of transparent shell and photo resistance's specification phase-match.
Preferably, the temperature sensing assembly comprises a box body, two metal strips, a rotating gear, a toothed bar, the inside fixedly connected with box of shell, the inside fixedly connected with two metal strips of box, the inside rotation of box is connected with a rotating gear, rotating gear's outside meshing has a toothed bar, the spout has been seted up to the internal surface of box, the outside of toothed bar is provided with the lug, the specification of two metal strips and the specification phase-match and the position of the outside tooth of rotating gear are corresponding, lug sliding connection is in the inboard of spout, the outside fixedly connected with connecting spring of lug, the connecting spring keeps away from the one end fixed connection in the inside of box of lug, the inboard of box is provided with the contact.
Preferably, the main materials of the electrorheological body are gypsum, lime, carbon powder and olive oil, the electrorheological body is in a solid state under an electrified state with a specified current amount and in a liquid state under a non-electrified state, and the volume of the electrorheological body accounts for three quarters of the internal space of the supporting shell.
Preferably, the electromagnet, the cylinder, the conductive column and the motor are electrically connected with an external power supply, and the external power supply, the contact, the photoresistor and the contact block are electrically connected with the control center.
Preferably, the lamp beads are normally bright in the initial state, the photoresistor can receive the illumination of the lamp beads, the resistance value of the photoresistor is maximum, and the current is minimum.
Preferably, the two metal sheets in the bimetallic strip have different thermal expansion coefficients, and when the temperature changes, the deformation of the active layer is larger than that of the passive layer, so that the whole bimetallic strip bends towards one side of the passive layer, and the curvature of the composite material changes to generate deformation.
(III) advantageous effects
Compared with the prior art, the invention provides the turnover screen turnover device with the safety protection and hand-clamping prevention functions, and the turnover screen turnover device has the following beneficial effects:
1. this upset screen turner with safety protection prevents tong function, when the operator uses the upset screen turner, it rotates to drive the pivot through the motor operation, the pivot rotates and drives the commentaries on classics board and rotate the exhibition of accomplishing the display and accomodate, when motor slew velocity is too fast, the pivot rotates and drives the motion of support shell, it drives the ejector pin motion to support shell motion, at this moment, the centrifugal force that the ejector pin received is greater than expanding spring's elasticity, the ejector pin is thrown away, the ejector pin with be connected the shell block, the ejector pin motion drives the speed reduction disc motion, the countershaft slows down under the effect of friction disc and annular, thereby reached and to its effect that slows down when the pivot slew velocity is very fast, user's property safety has been guaranteed, the device accords with the technical theory of intelligent manufacturing.
2. The turnover screen turner with the safety protection and hand-clamping prevention function has the advantages that when an operator places a hand outside the turnover screen turner in the storage process, the double metal strips are deformed due to high body surface temperature of people, when the double metal strips are deformed, the double metal strips drive the rotating gear to rotate under the action of external teeth of the rotating gear, the rotating gear drives the toothed bar to move, the toothed bar moves to be in contact with a contact, when the operator places the hand in the turnover screen turner, the hand of the operator can block illumination of a lamp bead, the resistance value of the photosensitive resistor changes, the control center controls the external power supply to stop supplying power to the motor, the control center controls the external power supply to be powered on by the cylinder, the cylinder is powered on to operate to drive the push rod, the rotating shaft does not move under the action of the speed reduction disc and the push rod, and the effect of stopping rotating and storing when the user places the hand on a desktop is, the use safety of operators is ensured.
Drawings
FIG. 1 is a schematic view of the present invention in partial cross section;
FIG. 2 is a schematic view of the structure of FIG. 1 at A according to the present invention;
FIG. 3 is a schematic structural diagram illustrating a connection relationship between some of the structures shown in FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3 at B according to the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 at C in accordance with the present invention;
FIG. 6 is a schematic view of the connection relationship among the housing, the lamp bead, the light shielding shell, the transparent shell and the photoresistor.
In the figure: 1. a housing; 2. fixing the disc; 3. a rotation detection mechanism; 31. a rotating shaft; 32. a support housing; 33. Clamping the assembly; 331. an electrorheological fluid; 332. a top rod; 333. a tension spring; 334. a conductive post; 34. A reduction disk; 35. a connecting shell; 36. an electromagnet; 37. rotating the plate; 4. a forced deceleration mechanism; 41. a stationary case; 42. a cylinder; 43. a push rod; 5. an external power supply; 6. a trigger mechanism; 61. a light sensing component; 611. A lamp bead; 612. a light-shielding shell; 613. a transparent shell; 614. a photoresistor; 62. a temperature sensing component; 621. A box body; 622. a bi-metal strip; 623. a rotating gear; 624. a toothed bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
please refer to fig. 1, 3, 4, 5, a flip-flop with anti-pinch function of safety protection, which comprises a housing 1, the inside of housing 1 is rotated and is connected with fixed disk 2, the inside swing joint of fixed disk 2 has rotation detection mechanism 3, rotation detection mechanism 3 includes pivot 31, support shell 32, clamping component 33, speed reduction disc 34, connecting shell 35, electromagnet 36, rotating plate 37, the inside of housing 1 is rotated and is connected with pivot 31, the inside fixedly connected with support shell 32 of pivot 31, the outside swing joint of support shell 32 has clamping component 33, the inside sliding connection of fixed disk 2 has speed reduction disc 34, the inside fixedly connected with connecting shell 35 of speed reduction disc 34, the inside fixedly connected with electromagnet 36 of connecting shell 35, the outside fixedly connected with rotating plate 37 of pivot 31.
The square hole has been seted up on the surface of pivot 31, support shell 32 fixed connection is in the inboard of square hole, the round hole has been seted up on the surface of speed reduction disc 34, connect shell 35 fixed connection is in the inboard of round hole, the inside of connecting shell 35 is provided with the feeler block, the annular has been seted up to the internal surface of fixed disk 2, the outside of speed reduction disc 34 is provided with the slider, the outside of slider is provided with the friction disc, slider sliding connection is in the inboard of annular, the outside of commentaries on classics board 37 is provided with the crashproof pad, the outside fixedly.
The clamping component 33 includes an electrorheological body 331, a top bar 332, a telescopic spring 333, a conductive column 334, the inside of the supporting shell 32 is provided with the electrorheological body 331, the outside sliding connection of the supporting shell 32 has the top bar 332, the outside fixedly connected with telescopic spring 333 of the top bar 332, the inside fixedly connected with conductive column 334 of the supporting shell 32, the conductive column 334 has two, two conductive columns 334 are movably connected inside the electrorheological body 331, the number of the telescopic springs 333 is not less than two, the one end of all the telescopic springs 333 far away from the top bar 332 is fixedly connected inside the supporting shell 32, the specification of the top bar 332 is matched with the specification of the connecting shell 35 and corresponds in position, the inside fixedly connected with an external power supply 5 of the shell 1, the electromagnet 36, the conductive column 334, the motor is electrically connected with the external power supply 5, the external power.
Example two:
referring to fig. 1-6, a turnover screen turnover device with safety protection and hand-pinch prevention functions comprises a shell 1, wherein a fixed disc 2 is rotatably connected inside the shell 1, a forced reduction mechanism 4 is movably connected outside the fixed disc 2, the forced reduction mechanism 4 comprises a fixed shell 41, an air cylinder 42, a push rod 43, a fixed shell 41 is fixedly connected inside the fixed disc 2, the air cylinder 42 is fixedly connected inside the fixed shell 41, the push rod 43 is slidably connected outside the air cylinder 42, the number of the fixed shells 41 is not less than six, all the fixed shells 41 are uniformly distributed outside the fixed disc 2 at equal angles, and friction plates are arranged outside the push rod 43.
The inside fixedly connected with external power source 5 of shell 1, the inside swing joint of shell 1 has trigger mechanism 6, trigger mechanism 6 includes light sense subassembly 61, temperature sensing subassembly 62, the inside fixedly connected with light sense subassembly 61 of shell 1, the inside swing joint of shell 1 has temperature sensing subassembly 62, light sense subassembly 61 includes lamp pearl 611, shading shell 612, transparent shell 613, photo resistor 614, the inside fixedly connected with lamp pearl 611 of shell 1, the inside fixedly connected with shading shell 612 of shell 1, transparent shell 613 is inlayed to the outside of shading shell 612, the inside fixedly connected with photo resistor 614 of shading shell 612, the specification of transparent shell 613 and the specification phase-match of photo resistor 614.
Example three:
please refer to fig. 1-6, a turnover screen tilter with safety protection and hand-clamping prevention functions, which comprises a housing 1, the inside of the housing 1 is rotatably connected with a fixed disk 2, the inside of the fixed disk 2 is movably connected with a rotation detection mechanism 3, the rotation detection mechanism 3 comprises a rotating shaft 31, a supporting shell 32, a clamping component 33, a speed reduction disk 34, a connecting shell 35, an electromagnet 36, a rotating plate 37, the inside of the housing 1 is rotatably connected with the rotating shaft 31, the inside of the rotating shaft 31 is fixedly connected with the supporting shell 32, the outside of the supporting shell 32 is movably connected with the clamping component 33, the inside of the fixed disk 2 is slidably connected with the speed reduction disk 34, the inside of the speed reduction disk 34 is fixedly connected with the connecting shell 35, the inside of the connecting shell 35 is fixedly connected with the electromagnet 36, and.
The square hole has been seted up on the surface of pivot 31, support shell 32 fixed connection is in the inboard of square hole, the round hole has been seted up on the surface of speed reduction disc 34, connect shell 35 fixed connection is in the inboard of round hole, the inside of connecting shell 35 is provided with the feeler block, the annular has been seted up to the internal surface of fixed disk 2, the outside of speed reduction disc 34 is provided with the slider, the outside of slider is provided with the friction disc, slider sliding connection is in the inboard of annular, the outside of commentaries on classics board 37 is provided with the crashproof pad, the outside fixedly.
The clamping assembly 33 comprises an electrorheological body 331, a top bar 332, a telescopic spring 333, a conductive column 334, the electrorheological body 331 is arranged inside the supporting shell 32, the top bar 332 is connected to the outside of the supporting shell 32 in a sliding manner, the telescopic spring 333 is fixedly connected to the outside of the top bar 332, the conductive column 334 is fixedly connected to the inside of the supporting shell 32, the conductive columns 334 are two, the two conductive columns 334 are movably connected to the inside of the electrorheological body 331, the number of the telescopic springs 333 is not less than two, one ends of all the telescopic springs 333 far away from the top bar 332 are fixedly connected to the inside of the supporting shell 32, and the specifications of the top bar 332 are matched with the specifications of.
The external part of the fixed disk 2 is movably connected with a forced reduction mechanism 4, the forced reduction mechanism 4 comprises a fixed shell 41, an air cylinder 42 and a push rod 43, the fixed shell 41 is fixedly connected with the internal part of the fixed disk 2, the air cylinder 42 is fixedly connected with the internal part of the fixed shell 41, the push rod 43 is slidably connected with the external part of the air cylinder 42, the number of the fixed shells 41 is not less than six, all the fixed shells 41 are uniformly distributed on the external part of the fixed disk 2 at equal angles, and friction plates are arranged on the external part of the push.
The inside fixedly connected with external power source 5 of shell 1, the inside swing joint of shell 1 has trigger mechanism 6, trigger mechanism 6 includes light sense subassembly 61, temperature sensing subassembly 62, the inside fixedly connected with light sense subassembly 61 of shell 1, the inside swing joint of shell 1 has temperature sensing subassembly 62, light sense subassembly 61 includes lamp pearl 611, shading shell 612, transparent shell 613, photo resistor 614, the inside fixedly connected with lamp pearl 611 of shell 1, the inside fixedly connected with shading shell 612 of shell 1, transparent shell 613 is inlayed to the outside of shading shell 612, the inside fixedly connected with photo resistor 614 of shading shell 612, the specification of transparent shell 613 and the specification phase-match of photo resistor 614.
The temperature sensing component 62 comprises a box body 621, a bimetallic strip 622, a rotating gear 623 and a toothed bar 624, the box body 621 is fixedly connected inside the shell 1, the bimetallic strip 622 is fixedly connected inside the box body 621, the rotating gear 623 is rotatably connected inside the box body 621, the toothed bar 624 is meshed outside the rotating gear 623, a sliding groove is formed in the inner surface of the box body 621, a convex block is arranged outside the toothed bar 624, the specification of the bimetallic strip 622 is matched with the specification of the external teeth of the rotating gear 623 in a corresponding position, the convex block is slidably connected to the inner side of the sliding groove, a connecting spring is fixedly connected outside the convex block, one end of the connecting spring, which is far away from the convex block, is fixedly connected inside the box body 621, a contact is arranged inside the box, the conductive post 334 and the motor are electrically connected to an external power source 5, and the external power source 5, the contact, the photo resistor 614 and the contact block are electrically connected to the control center.
This device begins to launch, and lamp pearl 611 is bright under initial condition usually, and at this moment, the illumination of lamp pearl 611 can be received to photo resistance 614, and photo resistance 614 resistance is the biggest, and the electric current is the minimum, and when the operator need use the display screen, the operator passes through control centre control external power source 5 and for the motor circular telegram, and motor circular telegram operation drives pivot 31 and rotates, and pivot 31 rotates and drives the motion of changeing board 37, and the completion is to opening and accomodating of display screen.
When influenced by external factors, the rotating speed of the rotating shaft 31 becomes fast, the rotating shaft 31 rotates to drive the supporting shell 32 to move, the supporting shell 32 moves to drive the mandril 332 to move, at this time, the centrifugal force applied to the post rod 332 is larger than the elastic force of the expansion spring 333, the post rod 332 is thrown out, the post rod 332 contacts with the contact block, at this time, the control center controls the external power supply 5 not to electrify the motor any more, meanwhile, the control center controls the external power supply 5 to electrify the electromagnet 36 and the conductive column 334, the electromagnet 36 is electrified to generate magnetic attraction to the mandril 332, the conductive column 334 is electrified to enable current to flow into the current variant 331 through the conductive column 334, the current variant 331 is changed into a solid state under the action of the current, therefore, the ejector rod 332 is clamped with the connecting shell 35, the ejector rod 332 moves to drive the connecting shell 35 to move, the connecting shell 35 moves to drive the speed reducing disc 34 to move under the action of the sliding block and the annular groove, and the rotating shaft 31 is reduced in speed under the action of the fixed disc 2 and the friction plate.
When an operator places a hand outside a desktop, the bimetal strip 622 is deformed under the action of temperature, the bimetal strip 622 is deformed to be in contact with external teeth of the rotating gear 623, the rotating gear 623 rotates under the action of the bimetal strip 622, the rotating gear 623 rotates to drive the toothed rod 624 to move under the action of the bump and the chute, the toothed rod 624 moves to be in contact with a contact, the hand of the operator can block the illumination of the lamp bead 611, the photosensitive resistor 614 cannot receive the illumination of the lamp bead 611, the resistance value of the photosensitive resistor 614 is increased, the current is reduced, the control center senses the current change and controls the external power supply 5 to be no longer electrified for the motor, meanwhile, the control center controls the external power supply 5 to be electrified by the air cylinder 42, the air cylinder 42 is electrified to operate to drive the push rod 43 to move, the push rod 43 is moved to be in contact with the rotating shaft 31, and the rotating, the operator is protected from being pinched.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a upset screen turner with hand function is prevented pressing from both sides by safety protection, includes shell (1), its characterized in that: the internal rotation of shell (1) is connected with fixed disk (2), and the internal swing joint of fixed disk (2) has rotation detection mechanism (3), and the outside swing joint of fixed disk (2) has compulsory reduction gears (4), and the inside fixedly connected with external power source (5) of shell (1).
2. The turnover screen turnover device with the safety protection and hand-clamping prevention functions as claimed in claim 1, is characterized in that: rotation detection mechanism (3) are including pivot (31), support shell (32), block subassembly (33), speed reduction disk (34), connect shell (35), electro-magnet (36), commentaries on classics board (37), the inside of shell (1) is rotated and is connected with pivot (31), the inside fixedly connected with of pivot (31) supports shell (32), the outside swing joint of supporting shell (32) has block subassembly (33), the inside sliding connection of fixed disk (2) has speed reduction disk (34), the inside fixedly connected with connect shell (35) of speed reduction disk (34), the inside fixedly connected with electro-magnet (36) of connect shell (35), the outside fixedly connected with of pivot (31) changes board (37).
3. The turnover screen turnover device with the safety protection and hand-clamping prevention functions as claimed in claim 2, is characterized in that: the square hole has been seted up on the surface of pivot (31), support shell (32) fixed connection is in the inboard in square hole, the round hole has been seted up on the surface of speed reduction dish (34), connect shell (35) fixed connection in the inboard of round hole, the inside of connecting shell (35) is provided with the feeler block, the annular has been seted up to the internal surface of fixed disk (2), the outside of speed reduction dish (34) is provided with the slider, the outside of slider is provided with the friction disc, slider sliding connection is in the inboard of annular, the outside of commentaries on classics board (37) is provided with the crashproof pad, the outside fixedly connected with motor of pivot (31).
4. The turnover screen turnover device with the safety protection and hand-clamping prevention functions as claimed in claim 2, is characterized in that: block subassembly (33) is including current variant (331), ejector pin (332), expanding spring (333), lead electrical pillar (334), the inside of supporting shell (32) is provided with current variant (331), the outside sliding connection who supports shell (32) has ejector pin (332), the outside fixedly connected with expanding spring (333) of ejector pin (332), the inside fixedly connected with who supports shell (32) leads electrical pillar (334), it has two to lead electrical pillar (334), two lead electrical pillar (334) equal swing joint in the inside of current variant (331), two are no less than to the quantity of expanding spring (333), the equal fixed connection of one end that ejector pin (332) were kept away from in all expanding spring (333) is in the inside of supporting shell (32), the specification of ejector pin (332) and the specification phase-match and the position of connecting shell (35) are corresponding.
5. The turnover screen turnover device with the safety protection and hand-clamping prevention functions as claimed in claim 1, is characterized in that: the forced speed reduction mechanism (4) comprises a fixed shell (41), a cylinder (42) and a push rod (43), wherein the fixed shell (41) is fixedly connected with the inner part of the fixed disk (2), the cylinder (42) is fixedly connected with the inner part of the fixed shell (41), and the push rod (43) is slidably connected with the outer part of the cylinder (42).
6. The turnover screen turnover device with the safety protection and hand-clamping prevention functions as claimed in claim 5, is characterized in that: the number of the fixed shells (41) is not less than six, all the fixed shells (41) are uniformly distributed outside the fixed disc (2) at equal angles, and friction plates are arranged outside the push rod (43).
7. The turnover screen turnover device with the safety protection and hand-clamping prevention functions as claimed in claim 1, is characterized in that: the inside of the shell (1) is movably connected with a trigger mechanism (6).
8. The turnover screen turnover device with the safety protection and hand-clamping prevention functions as claimed in claim 7, is characterized in that: the trigger mechanism (6) comprises a light sensing assembly (61) and a temperature sensing assembly (62), the light sensing assembly (61) is fixedly connected inside the shell (1), and the temperature sensing assembly (62) is movably connected inside the shell (1).
9. The turnover screen turnover device with the safety protection and hand-clamping prevention functions as claimed in claim 8, is characterized in that: light sense subassembly (61) includes lamp pearl (611), shading shell (612), transparent shell (613), photo resistance (614), the inside fixedly connected with lamp pearl (611) of shell (1), the inside fixedly connected with shading shell (612) of shell (1), the outside of shading shell (612) is inlayed and is had transparent shell (613), the inside fixedly connected with photo resistance (614) of shading shell (612), the specification phase-match of transparent shell (613) and photo resistance (614).
10. The turnover screen turnover device with the safety protection and hand-clamping prevention functions as claimed in claim 8, is characterized in that: temperature sensing assembly (62) is including box (621), bimetal strip (622), rotating gear (623), ratch (624), the inside fixedly connected with box (621) of shell (1), the inside fixedly connected with bimetal strip (622) of box (621), the inside rotation of box (621) is connected with rotating gear (623), the outside meshing of rotating gear (623) has ratch (624), the spout has been seted up to the internal surface of box (621), the outside of ratch (624) is provided with the lug, the specification of bimetal strip (622) and rotating gear (623) outside tooth's specification phase-match and position are corresponding, lug sliding connection is in the inboard of spout, the outside fixedly connected with connecting spring of lug, connecting spring keeps away from the one end fixed connection in the inside of box (621) of lug, the inboard of box (621) is provided with the contact.
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| CN202110320598.2A CN112963716B (en) | 2021-03-25 | 2021-03-25 | Turnover screen turner with safety protection and hand clamping prevention functions |
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| CN202110320598.2A CN112963716B (en) | 2021-03-25 | 2021-03-25 | Turnover screen turner with safety protection and hand clamping prevention functions |
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