CN110571694A - Door stop mechanism for built-in contact box of switch cabinet and use method of door stop mechanism - Google Patents
Door stop mechanism for built-in contact box of switch cabinet and use method of door stop mechanism Download PDFInfo
- Publication number
- CN110571694A CN110571694A CN201910934952.3A CN201910934952A CN110571694A CN 110571694 A CN110571694 A CN 110571694A CN 201910934952 A CN201910934952 A CN 201910934952A CN 110571694 A CN110571694 A CN 110571694A
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- China
- Prior art keywords
- plate
- guide wheel
- box body
- wire guide
- rod
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/14—Shutters or guards for preventing access to contacts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
- H02B11/04—Isolating-contacts, e.g. mountings or shieldings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
Abstract
the invention relates to the technical field of protection of a built-in contact box of a switch cabinet, in particular to a door stop mechanism for the built-in contact box of the switch cabinet and a using method thereof. According to the door stop mechanism for the built-in contact box of the switch cabinet and the using method of the door stop mechanism, the lifting mechanism has the effect of saving labor, the opening and closing mechanism has the effect of amplifying the stroke, the occupied space is favorably reduced, the static contact is quickly opened or closed, and the connection/disconnection efficiency of the contact box is improved.
Description
Technical Field
The invention relates to the technical field of protection of a built-in contact box of a switch cabinet, in particular to a door stop mechanism for the built-in contact box of the switch cabinet and a using method thereof.
Background
In order to ensure the use safety of a built-in contact box of a switch cabinet, a valve mechanism is usually arranged at a fixed contact, so that the fixed contact is protected when the switch cabinet is in an operating state or an overhauling state.
disclosure of Invention
the invention aims to provide a door stop mechanism for a built-in contact box of a switch cabinet and a using method thereof, so as to solve the problems in the background technology.
in order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a door shield mechanism that built-in contact box of cubical switchboard was used, comprises a box bod, the box body bottom is fixed with the layer board that the level set up, still include and be used for going on the overhead gage and the lower baffle that shelter from the static contact, be fixed with vertical ascending guide post on the layer board, and sliding connection has the counterweight plate on the guide post, be provided with hoist mechanism on the layer board, and hoist mechanism is connected with the counterweight plate, the symmetry formula is fixed with the curb plate on the inside both sides wall of box body, and be provided with on the curb plate and be used for opening or closed starting and stopping mechanism to overhead gage and lower baffle, and starting and stopping mechanism is connected with the counterweight plate.
Preferably, the guide bar is provided with two, and sets up the through-hole that corresponds with the guide bar on the counterweight plate, and the guide bar slides and pegs graft on the counterweight plate rather than in the through-hole that corresponds, and bar groove has all been seted up in the both ends department of counterweight plate, two bar groove three uses the vertical central line of counterweight plate as the line of symmetry symmetrical arrangement, and the trend in bar groove three is perpendicular with the guide bar.
preferably, hoist mechanism is including fixing the deflector on the layer board, and the deflector is loudspeaker form, and the inside sliding connection of deflector has the movable block, and the moving direction of movable block is perpendicular with the backplate place face of box body, and accessible fixture is connected between movable block and the deflector, and the bilateral symmetry formula of movable block is provided with the wire wheelset, and the both sides of movable block pass corresponding wire wheelset and the end connection that corresponds on the weight plate through the stay cord.
Preferably, the wire wheel group includes wire wheel one, wire wheel two and wire wheel three, wire wheel one dead axle rotates to be connected on the layer board, wire wheel two and the rotation of the equal dead axle of wire wheel three are connected on the inside backplate of box body, wire wheel three and wire wheel two are located both sides about the tip that corresponds on the counterweight plate respectively, the stay cord of movable block one side passes wire wheel one in the corresponding wire wheel group in proper order, wire wheel two and wire wheel three are connected with the tip of counterweight plate, wire wheel one place the plane is parallel with the layer board, wire wheel two and wire wheel three are in the coplanar, and wire wheel two and wire wheel three place the plane parallel with the backplate place face of box body.
preferably, fixture is including fixing the pin rod on the movable block, fixing the sliding sleeve on the deflector and fixing the insulating switch on the box body lateral wall, and pin rod vertical fixation is at the side middle part of movable block towards the box body backplate, and the end fixing that the movable block was kept away from to the pin rod has hemispherical top, and the sliding sleeve is provided with two to correspond respectively and fix on the deflector, and two the sliding sleeve symmetry formula is fixed two one side that the deflector is relative, the inside sliding connection of sliding sleeve has the piston piece of iron, and is fixed with the pin on the piston piece, and the one end that the pin is located the sliding sleeve outside is the wedge structure, and the wedge is towards the movable block, and spring coupling is passed through with the inboard one end of pressing close to the deflector of sliding sleeve to the piston piece, and the inboard one end of pressing close to the deflector of sliding sleeve is fixed.
Preferably, the lower tip dead axle of curb plate rotates and is connected with the pivot, the one end of the directional box body backplate of pivot is fixed with sticks up pole three, stick up pole three and pivot perpendicular, and the one end of keeping away from the pivot of stick up pole three is fixed with the slider, and slider and the three sliding connection in the last corresponding one side bar groove of counterweight, the fixed cover of one end that the pivot deviates from the box body backplate has connect the axle sleeve, the bilateral symmetry formula of axle sleeve is fixed with first swing arm and second swing arm, and first swing arm and second swing arm structure are the same, and be in on the same straight line, stick up pole three and first swing arm parallel, and stick up the length ratio of pole three and first swing arm and be 4: 1.
As this application is preferred, the upper end dead axle of curb plate rotates to be connected with sticks up pole one and stick up pole two, and stick up pole one and stick up two structures of pole the same to the upper and lower position is arranged, sticks up the pivot point that pole one and stick up pole two and curb plate and is L1 and L2 junction, and L1's length: l2 was 1:4 in length.
in addition, the second swing arm is hinged to the end portion, located at the position L1, of the tilting rod II through a connecting rod II, and the first swing arm is hinged to the end portion, located at the position L1, of the tilting rod I through a connecting rod I.
Preferred on the other hand again, the overhead gage is the same with lower baffle structure, and bar groove two, two have all been seted up to the both ends department of overhead gage the vertical central line of baffle more than bar groove two is symmetrical line symmetrical arrangement, and the trend of bar groove two is perpendicular with the guide bar, sticks up the tip of the L2 department of bar two and the two sliding connection in bar groove that correspond, and bar groove one, two have all been seted up to the both ends department of baffle down the vertical central line of baffle below the bar groove one is symmetrical line symmetrical arrangement, and the trend of bar groove one is perpendicular with the guide bar, sticks up the tip of the L2 department of bar one and the first sliding connection in bar groove that corresponds.
in addition, the application also provides a use method of the door stop mechanism for the built-in contact box of the switch cabinet, which comprises the following steps:
The method comprises the following steps: the circuit breaker trolley approaches the interior of the box body, and the balancing weight moves upwards through the lifting mechanism;
step two: the upper baffle and the lower baffle are driven to open by the opening and closing mechanism in the upward moving process of the seed distributing block;
Step three: after the circuit breaker handcart is far away from the box body, the seed preparation block moves downwards under the action of self gravity to reset, and drives the lifting mechanism to reset, and simultaneously drives the upper baffle and the lower baffle to be closed through the opening and closing mechanism.
compared with the prior art, the invention has the beneficial effects that:
according to the invention, the movable block is connected with the balancing weight through the lifting mechanism, so that the thrust which is perpendicular to the box body back plate and is applied to the movable block on the horizontal plane is converted into the force which is parallel to the gravity direction and vertically upward on the vertical plane, and the balanced and stable ascending or descending of the balancing weight plate is ensured in the ascending process;
According to the invention, by using the upper baffle and the lower baffle which are in translation type and opposite to each other, the opening and closing mechanism has the stroke amplifying function, so that the occupied space is favorably reduced, the management is convenient, the static contact is quickly opened or closed, the connection/disconnection efficiency of the contact box is improved, the potential safety hazard of the operation of the switch cabinet is prevented, and the safety of operators is ensured.
drawings
FIG. 1 is a schematic view of the final assembly structure of the present invention in a closed state;
FIG. 2 is a schematic view of the final assembly structure of the present invention in an open state;
3 FIG. 33 3 is 3 a 3 schematic 3 view 3 of 3 the 3 cross 3- 3 sectional 3 structure 3 A 3- 3 A 3 of 3 FIG. 31 3; 3
FIG. 4 is a schematic view of a cross-sectional structure B-B in FIG. 1;
FIG. 5 is a schematic view of a clamping mechanism according to the present invention;
FIG. 6 is a schematic view of the cross-sectional structure C-C of FIG. 2;
FIG. 7 is a schematic view of a second connecting structure of a seesaw bar III, a first connecting bar and a second connecting bar in the present invention;
Fig. 8 is a schematic diagram of a circuit breaker trolley.
in the figure: 1-box body; 2-side plate; 3, connecting the first rod; 4-raising a third rod; 5-raising the first rod; 6-lower baffle; 7-a guide rod; 8-a weight plate; 9-wire guide wheel III; 10-raising a second rod; 11-an upper baffle plate; 12-link two; 13-shaft sleeve; 14-a second swing arm; 15-a rotating shaft; 16-a first swing arm; 17-a movable block; 18-a guide plate; 19-a first wire guide wheel; 20-pulling a rope; 21-wire guide wheel two; 22-a pallet; 23-a first strip groove; 24-a second strip groove; 25-strip groove III; 26-a slide block; 27-a clamping mechanism; 28-an insulated switch; 29-a sliding sleeve; 30-an electromagnet; 31-a spring; 32-a piston block; 33-a buckle rod; 34-a plug; 35-Pin.
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 obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 8, the present invention provides a technical solution: a door shield mechanism for a built-in contact box of a switch cabinet comprises a box body 1, a supporting plate 22 horizontally arranged is fixed at the bottom of the box body 1, an upper baffle plate 11 and a lower baffle plate 6 used for shielding a static contact, the static contact is fixed in the contact box in the switch cabinet and is stationary, a moving contact is fixed on a handcart of a circuit breaker, the static contact and the moving contact are connected by moving the handcart of the circuit breaker to enable the moving contact to move and approach the static contact, so that the static contact and the moving contact are connected with each other, a vertical upward guide post 7 is fixed on the supporting plate 22, a counterweight plate 8 is connected on the guide post 7 in a sliding manner, a lifting mechanism is arranged on the supporting plate 22 and is connected with the counterweight plate 8, side plates 2 are symmetrically fixed on two side walls in the box body 1, and an opening and closing mechanism used for opening or closing the upper baffle plate 11 and the lower baffle plate 6 is arranged on the, and the opening and closing mechanism is connected with the counterweight plate 8.
In this embodiment, guide bar 7 is provided with two, and sets up the through-hole that corresponds with guide bar 7 on the counterweight plate 8, and guide bar 7 slides and pegs graft on counterweight plate 8 in rather than the through-hole that corresponds, and bar groove three 25 has all been seted up at the both ends department of counterweight plate 8, two bar groove three 25 uses the vertical central line of counterweight plate 8 to arrange as the line of symmetry, and the trend in bar groove three 25 is perpendicular with guide bar 7.
in this embodiment, the lifting mechanism includes the guide plate 18 fixed on the supporting plate 22, and the guide plate 18 is in the shape of a horn, the inside sliding connection of the guide plate 18 has the movable block 17, and the moving direction of the movable block 17 is perpendicular to the surface of the back plate of the box body 1, and the movable block 17 and the guide plate 18 can be connected through the clamping mechanism 27, the back plate of the box body 1 is the surface perpendicular to the visual angle inside the box body 1 in fig. 1 and fig. 2, that is, the section line in fig. 3 is located, the bilateral symmetry of the movable block 17 is provided with the wire wheel sets, and the two sides of the movable block 17 pass through the corresponding wire wheel sets through the pull ropes 20 and are connected with the corresponding end portions on the counterweight plate 8.
in this embodiment, the wire wheel set includes a first wire wheel 19, a second wire wheel 21 and a third wire wheel 9, the first wire wheel 19 is fixed-axis-rotatably connected to the supporting plate 22, the second wire wheel 21 and the third wire wheel 9 are both fixed-axis-rotatably connected to the back plate inside the box body 1, the third wire wheel 9 and the second wire wheel 21 are respectively located at the upper side and the lower side of the corresponding end portion of the weight plate 8, the pull rope 20 at one side of the movable block 17 sequentially passes through the first wire wheel 19, the second wire wheel 21 and the third wire wheel 9 in the corresponding wire wheel set and is connected with the end portion of the weight plate 8, the plane where the first wire wheel 19 is located is parallel to the supporting plate 22, the second wire wheel 21 and the third wire wheel 9 are located on the same plane, and the plane where the second wire wheel 21 and the third wire wheel 9 are located is.
In this embodiment, the clamping mechanism 27 includes a pin 35 fixed on the movable block 17, a sliding sleeve 29 fixed on the guide plate 18, and an insulating switch 28 fixed on the outer sidewall of the box body 1, the pin 35 is vertically fixed in the middle of the side of the movable block 17 facing the back plate of the box body 1, the end of the pin 35 away from the movable block 17 is fixed with a hemispherical head 34, two sliding sleeves 29 are provided and are respectively and correspondingly fixed on the guide plate 18, and the two sliding sleeves 29 are symmetrically fixed on the opposite sides of the two guide plates 18, a piston block 32 made of iron is slidably connected inside the sliding sleeve 29, a buckle rod 33 is fixed on the piston block 32, one end of the buckle rod 33 located outside the sliding sleeve 29 is in a wedge structure, the wedge surface faces the movable block 17, the piston block 32 is connected with one end of the sliding sleeve 29 inside close to the guide plate 18 through a spring 31, and one end of the guide plate 18 inside the sliding sleeve 29 is, the electromagnet 30 is electrically connected to the insulation switch 28. It should be emphasized that the application of the power supply to the electromagnet 30 by the insulated switch 28 is a common knowledge technology, and the technical solution of electrically controlling the electromagnet by the insulated switch is the prior art and does not belong to the focus of the application, and it is not further described here.
In this embodiment, a rotating shaft 15 is rotatably connected to a fixed shaft at the lower end of the side plate 2, a seesaw rod three 4 is fixed at one end of the rotating shaft 15, which points to the back plate of the box body 1, the seesaw rod three 4 is perpendicular to the rotating shaft 15, as shown in fig. 5, a slider 26 is fixed at one end of the seesaw rod three 4, which is far away from the rotating shaft 1, and the slider 26 is slidably connected to a corresponding one-side strip-shaped groove three 25 on the counterweight plate 8, the cross section of the slider 26 is T-shaped, the same end of the seesaw rod one 5 is also slidably connected to a corresponding one-side strip-shaped groove one 23 through the slider 26, which is T-shaped in cross section, the end of the seesaw rod two 10 is also slidably connected to a corresponding one-side strip-shaped groove two 24 through the slider 26, a shaft sleeve 13 is fixedly sleeved on one end of the rotating shaft 15, which is far away from the back plate of the box body 1, stick up pole three 4 and first swing arm 16 parallel, and stick up the length ratio of pole three 4 and first swing arm 16 and be 4: 1.
in this embodiment, as shown in fig. 6, the shaft sleeve 13 on the rotating shaft 15 and the first swing arm 16 and the second swing arm 14 on the shaft sleeve 13 can be omitted, the first connecting rod 3 and the second connecting rod 12 are respectively hinged to the seesaw rod three 4, and the two hinged positions are symmetrically located at two sides of the rotating shaft 15, so that the transmission effect is unchanged, but the connection structure enables the seesaw rod three 14 to be installed at the front side of the side plate 2, so that the seesaw rod three 14 interferes with the moving stroke of the built-in mechanism at the lower part of the circuit breaker handcart, and the moving contact and the static contact are easily unstable, and the shaft sleeve 13 is fixedly sleeved on the rotating shaft 15 by adopting the connection mode in fig. 1 or fig. 2, and the first swing arm 16 and the second swing arm 14 at two sides of the shaft sleeve 13 are respectively hinged to the first connecting rod 3 and the second connecting rod 12, so that the seesaw rod three 14 is installed at the rear side of the side plate 2, so that the, thereby ensuring the connection stability of the moving contact and the static contact, being beneficial to reducing the volume of the box body 1 and simplifying the structure.
in this embodiment, the upper end dead axle of curb plate 2 rotates to be connected with and sticks up pole one 5 and stick up two 10 of pole, and stick up pole one 5 and stick up two 10 structures of pole the same to the upper and lower position is arranged, sticks up the pivot point of pole one 5 and stick up two 10 and curb plate 2 and is the junction of L1 and L2, and L1's length: l2 was 1:4 in length.
In this embodiment, the second swing arm 14 is hinged to the end of the seesaw bar II 10 at the position L1 through the second connecting rod 12, and the first swing arm 16 is hinged to the end of the seesaw bar I5 at the position L1 through the first connecting rod 3.
In this embodiment, the structure of upper shield 11 is the same with lower 6 fenders, and two strip groove two 24 have all been seted up in upper shield 11's both ends department two 24, two strip groove two 24 above baffle 11's vertical central line is symmetry line symmetrical arrangement, and two 24's trend and guide bar 7 are perpendicular, stick up two 10's the tip of L2 department and two 24 sliding connection in the strip groove that correspond, strip groove one 23 has all been seted up in lower 5's both ends department of baffle 23 the vertical central line of baffle 5 is symmetry line symmetrical arrangement below strip groove one 23, and the trend in strip groove one 23 is perpendicular with guide bar 7, sticks up the tip of the L2 department of bar one 5 and the strip groove one 23 sliding connection that corresponds.
as shown in fig. 7, in the circuit breaker handcart mentioned in this embodiment, the contact box is approached along the rail on the switch cabinet by the rollers on the two sides of the chassis vehicle, so as to drive the moving contact to approach the fixed contact, wherein the push rod moves synchronously while the circuit breaker handcart moves to abut against and contact the movable block 17, and further push the movable block 17 to approach to the back plate of the box body 1 along the guide plate 18.
As another invention point of the application, the application also provides a use method of the door stop mechanism for the built-in contact box of the switch cabinet, and when in use, the use method comprises the following steps:
the method comprises the following steps: when the circuit breaker handcart is pushed to approach the inside of the box body 1, the ejector rod of the chassis handcart is abutted and buckled to contact the movable block, the movable block 17 is pushed to approach the back plate of the box body 1 along the guiding direction of the guide plate 18, the horn-shaped opening of the guide plate 18 is helpful for positioning the circuit breaker handcart when approaching the inside of the box body 1, when the movable block 17 moves, the pull rope 20 exerts force on the counterweight plate 8 to enable the pull rope 20 to pull the counterweight plate 8 to move upwards along the guide rod 7, the two guide rods 7 are adopted to enable the counterweight plate 8 to stably move upwards and ensure that two ends of the counterweight plate 8 synchronously move, wherein a first wire wheel 19, a second wire wheel 21 and a third wire wheel 9 in a wire wheel group convert the thrust force perpendicular to the back plate of the box body 1 on the horizontal plane, which is applied to the movable block 17, into a vertical upward tensile force parallel to the gravity direction on the vertical plane, and further, the pull rope 20 pulls the balance weight plate 8 to move upwards along the guide rod 7, the movable block 17 is stressed to move and simultaneously exert force on the pull ropes 20 at two sides, and the purpose is to ensure that the balance weight plate 8 keeps balanced and stable ascending or descending in the ascending process, so that the upper baffle 11 and the lower baffle 6 are synchronously opened or closed, the warped rod three 4 is driven to rotate around the rotating shaft 15 by the strip-shaped groove three 25 in the ascending process of the balance weight plate 8, the first swing arm 16 and the second swing arm 14 are driven to rotate around the rotating shaft 15 by the rotating shaft 15 in the same direction as that of the warped rod three 4, according to the lever principle, the length ratio of the warped rod three 4 to the first swing arm 16 and the second swing arm 14 is 4, so that the process that the warped rod three 4 drives the rotating shaft 15 to rotate is labor-saving, the smooth opening of the upper baffle 11 and the lower baffle 6 can be ensured, and the energy output of the circuit breaker handcart, energy is saved;
After the movable block 17 is pushed by the push rod, the movable block moves close to the back plate of the box body 1 and synchronously drives the pin rod 35 and the ejector 34 to move close to the back plate of the box body 1, when the spherical surface of the ejector 34 contacts with the wedge-shaped surface of the buckle rod 33, the action of force is exerted on the wedge-shaped surface, so that the buckle rod 33 moves towards the inside of the sliding sleeve 29, the movement of the buckle rod 33 compresses the spring 31 through the piston block 32, so that the spring 31 obtains a restoring force, the ejector 34 smoothly passes through the buckle rod 33, after the ejector 34 passes through the buckle rod 33, the piston block 32 and the buckle rod 33 are pushed to reset under the action of the restoring force of the spring 31, after the buckle rod 33 resets, the movable block 17 is limited and fixed through the joint of the abutting buckle ejector 34 and the pin rod 35, so that the movable block cannot reversely move in the guide plate 18, and thus the movable block 17 is prevented from having the tendency of resetting of a pull rope under the action of gravity of the counterweight plate 8 after the contact of, further, the movable block 17 exerts a reverse acting force on the ejector rod, so that the stability of the circuit breaker handcart after the static contact and the movable contact are contacted is maintained;
Wherein, the electromagnet 30 is in a power-off state and has no magnetic attraction, so that the electromagnet has no attraction on the iron piston block 32;
Step two: the rotation of the first swing arm 16 applies upward thrust to the end of the first tilting rod 5 at the position of L1 through the first connecting rod 3, according to the lever principle, the end of the first tilting rod 5 at the position of L2 rotates downwards, so that the first tilting rod 5 drives the lower baffle 6 to move downwards, because the ratio of L1 to L2 on the first tilting rod 5 is 1:4, the first tilting rod 5 can amplify the pushing distance of the first connecting rod 3 to the end of L1 on the first tilting rod 5, further the distance of the first tilting rod 5 driving the lower baffle 6 to move downwards is amplified, so that the lower baffle 6 is opened quickly, the rotation of the second swing arm 14 applies downward tension to the end of the second tilting rod 10 at the position of L1 through the second connecting rod 12, and according to the lever principle, the end of the second tilting rod 10 at the position of L2 rotates upwards, so that the second tilting rod 10 drives the upper baffle 11 to move upwards, and because the ratio of L1 to L2 on the second tilting rod 10 is 1:4, therefore, the warped rod II 10 can enable the connecting rod II 12 to amplify the pushing distance of the L1 end on the warped rod II 10, and further enable the warped rod II 10 to drive the upper baffle 11 to move upwards, so that the upper baffle 11 is rapidly opened, and further the static contact is rapidly exposed, and the moving contact and the static contact are connected with each other along with the approaching movement of the circuit breaker handcart, in the embodiment, the translation type upper baffle 11 and the translation type lower baffle 6 which are opposite to each other are used, so that the static contact is rapidly opened or closed, the connection/disconnection efficiency of the contact box is improved, and on the other hand, due to the fact that the plane which is the same as the plane of the upper baffle 11 and the plane of the lower baffle 6 are adopted for design, the occupied space volume can be reduced, and management is;
Step three: when a fixed contact and a movable contact are required to be separated, the electromagnet 30 is powered on by pressing the insulating switch 28, magnetic attraction is generated, and then attraction action is exerted on an iron piston block 32, so that the piston block 32 compresses the spring 31 and approaches to the electromagnet 30, the piston block 32 drives the buckling rod 33 to be separated from the top 34 while moving, the limit on the top 34 is released, the movable block 17 can reversely slide in the guide plate 18 relative to the movement direction in the step one, the counterweight block 8 moves downwards along the guide rod 7 under the action of gravity, the downward movement of the counterweight block 8 exerts pulling force on the pull rope 20, the pull rope 20 pulls the movable block 17 to move along the guide plate 18 in the direction far away from the backboard of the box body 1 and reset, the automatic reset of the movable block 17 is realized, the downward gravity on the vertical surface of the counterweight block 8 is converted into the movement of the movable block 17 on the horizontal surface far away from the backboard of the box body 1 through a lead wheel set, therefore, the movable block 17 is pulled to move reversely in the guide plate 18 through the pull rope 20 under the action of the gravity of the balance weight plate 8, namely the movable block 17 applies outward thrust to the ejector rod, the circuit breaker handcart is driven to be far away from the box body 1 through the ejector rod, the circuit breaker handcart is far away from the box body 1 through the gravity of the balance weight plate 8, so that the movable contact and the fixed contact can be conveniently and rapidly separated, the labor of an operator for pulling the circuit breaker handcart is saved, and the labor intensity is reduced;
After the handcart of the circuit breaker is far away from the box body 1, the insulating switch 28 is loosened, the electromagnet 30 is powered off and loses magnetic attraction, and the piston block 32 and the buckling rod 33 reset under the action of the spring 31;
The downward movement of the balance weight plate 8 applies a downward force to one end of the tilting rod three 4 far away from the rotating shaft 15 through the strip-shaped groove three 25, the seesaw rod III 4 rotates reversely around the rotating shaft 15, the rotation of the rotating shaft drives the first swing arm 16 and the second swing arm 14 to rotate as the rotating shaft 15 through the shaft sleeve 14, the reverse rotation of the first swing arm 16 applies a downward pulling force to the end part at the L1 position of the seesaw rod I5 through the connecting rod I3, according to the lever principle, the end part at the position L2 of the tilting rod I5 rotates upwards, so that the tilting rod I5 drives the lower baffle 6 to move upwards, the reverse rotation of the second swing arm 14 applies an upward thrust to the end part at the position L1 of the tilting rod II 10 through the connecting rod II 12, and also according to the lever principle, the end part at the position L2 of the tilting rod II 10 rotates downwards, therefore, the warping rod II 10 drives the upper baffle 11 to move downwards, and the upper baffle 11 and the lower baffle 6 are quickly closed;
in this embodiment, when the circuit breaker handcart is close to box body 1, ejector pin on the circuit breaker handcart and movable block 17 contact the back, make the ejector pin to the effect of movable block 17 production force along with the continuation of circuit breaker handcart remove, just so make hoist mechanism drive starting and stopping mechanism open overhead gage 11 and baffle 6 down, when the circuit breaker handcart keeps away from to box body 1, ejector pin on the circuit breaker handcart breaks away from with movable block 17, do not produce the effect of power, thereby make hoist mechanism drive starting and stopping mechanism close overhead gage 11 and baffle 6 down under the action of gravity of counterweight plate 8, the realization is guaranteed that overhead gage 11 in the box body 1 and baffle 6 can open or close simultaneously smoothly, prevent to arouse the operation potential safety hazard of cubical switchboard, operating personnel's safety has been guaranteed.
the foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. the utility model provides a door shield mechanism that built-in contact box of cubical switchboard was used, includes box body (1), box body (1) bottom is fixed with layer board (22) that the level set up, its characterized in that: the static contact shielding box is characterized by further comprising an upper baffle (11) and a lower baffle (6) which are used for shielding a static contact, wherein a vertical upward guide post (7) is fixed on the supporting plate (22), a counterweight plate (8) is connected onto the guide post (7) in a sliding mode, a lifting mechanism is arranged on the supporting plate (22) and is connected with the counterweight plate (8), side plates (2) are symmetrically fixed on two side walls of the interior of the box body (1), an opening and closing mechanism used for opening or closing the upper baffle (11) and the lower baffle (6) is arranged on each side plate (2), and the opening and closing mechanism is connected with the counterweight plate (8).
2. The door stop mechanism for the built-in contact box of the switch cabinet according to claim 1, wherein: guide bar (7) are provided with two, and offer the through-hole that corresponds with guide bar (7) on counterweight plate (8), guide bar (7) slide peg graft on counterweight plate (8) in rather than the through-hole that corresponds, bar groove three (25) have all been seted up in the both ends department of counterweight plate (8), two bar groove three (25) use the vertical central line of counterweight plate (8) to arrange as the line of symmetry, and the trend of bar groove three (25) is perpendicular with guide bar (7).
3. The door stop mechanism for the built-in contact box of the switch cabinet according to claim 1, wherein: hoist mechanism is including fixing deflector (18) on layer board (22), and deflector (18) are the loudspeaker form, the inside sliding connection of deflector (18) has movable block (17), the moving direction of movable block (17) is perpendicular with the backplate place face of box body (1), and accessible fixture (27) are connected between movable block (17) and deflector (18), the bilateral symmetry formula of movable block (17) is provided with the wire wheelset, and passes corresponding wire wheelset and the end connection that corresponds on the weight plate (8) through stay cord (20) in the both sides of movable block (17).
4. The door stop mechanism for the built-in contact box of the switch cabinet according to claim 3, wherein: the wire guide wheel set comprises a first wire guide wheel (19), a second wire guide wheel (21) and a third wire guide wheel (9), the first wire guide wheel (19) is fixedly and rotatably connected to the supporting plate (22), the second wire guide wheel (21) and the third wire guide wheel (9) are both fixedly and rotatably connected to a back plate in the box body (1), the third wire guide wheel (9) and the second wire guide wheel (21) are respectively positioned at the upper side and the lower side of the corresponding end part on the counterweight plate (8), the pull rope (20) at one side of the movable block (17) sequentially passes through the first wire guide wheel (19), the second wire guide wheel (21) and the third wire guide wheel (9) in the corresponding wire guide wheel set to be connected with the end part of the counterweight plate (8), the plane of the first wire guide wheel (19) is parallel to the supporting plate (22), the second wire guide wheel (21) and the third wire guide wheel (9) are positioned on the same plane, and the surfaces of the second wire guide wheel (21) and the third wire guide wheel (9) are parallel to the surface of the back plate of the box body (1).
5. The door stop mechanism for the built-in contact box of the switch cabinet according to claim 3, wherein: the clamping mechanism (27) comprises a pin rod (35) fixed on the movable block (17), a sliding sleeve (29) fixed on the guide plate (18) and an insulating switch (28) fixed on the outer side wall of the box body (1), wherein the pin rod (35) is vertically fixed at the middle part of the side surface of the movable block (17) facing the back plate of the box body (1), the end part of the pin rod (35) far away from the movable block (17) is fixedly provided with a hemispherical top head (34), the sliding sleeve (29) is provided with two parts and is respectively and correspondingly fixed on the guide plate (18), the two sliding sleeves (29) are symmetrically fixed at one side opposite to the two guide plates (18), the sliding connection inside the sliding sleeve (29) is provided with an iron piston block (32), a buckling rod (33) is fixed on the piston block (32), and one end of the buckling rod (33) positioned outside the sliding sleeve (29) is of a wedge-shaped structure, and the wedge face is towards movable block (17), piston block (32) and sliding sleeve (29) inboard one end of pressing close to deflector (18) are passed through spring (31) and are connected, and sliding sleeve (29) inboard one end of pressing close to deflector (18) is fixed with electro-magnet (30), electro-magnet (30) are connected with insulating switch (28) electricity.
6. The door stop mechanism for the built-in contact box of the switch cabinet according to claim 2, wherein: the lower end part of the side plate (2) is fixedly and rotatably connected with a rotating shaft (15), one end of the rotating shaft (15) pointing to the back plate of the box body (1) is fixedly provided with a warping rod III (4), the warping rod III (4) is vertical to the rotating shaft (15), a slide block (26) is fixed at one end of the warped rod III (4) far away from the rotating shaft (1), and the slide block (26) is connected with the corresponding one side strip-shaped groove III (25) on the counterweight plate (8) in a sliding way, a shaft sleeve (13) is fixedly sleeved at one end of the rotating shaft (15) deviating from the back plate of the box body (1), a first swing arm (16) and a second swing arm (14) are symmetrically fixed on two sides of the shaft sleeve (13), the first swing arm (16) and the second swing arm (14) have the same structure, and on the same straight line, stick up pole three (4) and first swing arm (16) and be parallel, and stick up the length ratio of pole three (4) and first swing arm (16) and be 4: 1.
7. the door stop mechanism for the built-in contact box of the switch cabinet according to claim 6, wherein: the upper end dead axle of curb plate (2) is rotated and is connected with and sticks up pole (5) and stick up pole two (10), and sticks up pole (5) and stick up two (10) structures the same to the upper and lower position is arranged, stick up pole (5) and stick up the pin joint of pole two (10) and curb plate (2) and be the junction of L1 and L2, and L1's length: l2 was 1:4 in length.
8. The door stop mechanism for the built-in contact box of the switch cabinet according to claim 7, wherein: the second swing arm (14) is hinged to the end portion of the tilting rod II (10) at the position L1 through a connecting rod II (12), and the first swing arm (16) is hinged to the end portion of the tilting rod I (5) at the position L1 through a connecting rod I (3).
9. The door stop mechanism for the built-in contact box of the switch cabinet according to claim 8, wherein: go up baffle (11) and lower baffle (6) structure are the same, two in strip groove (24) have all been seted up in both ends department of overhead gage (11) the vertical central line of baffle (11) more than two (24) in strip groove is symmetry line symmetrical arrangement, and the trend of strip groove two (24) is perpendicular with guide bar (7), the tip of the L2 department of stick up two (10) and two (24) sliding connection in strip groove that correspond, strip groove one (23), two have all been seted up in both ends department of baffle (5) down the vertical central line of baffle (5) is symmetry line symmetrical arrangement below strip groove one (23), and the trend of strip groove one (23) is perpendicular with guide bar (7), the tip of the L2 department of stick up bar one (5) and the strip groove one (23) sliding connection that corresponds.
10. The use method of the door stop mechanism for the built-in contact box of the switch cabinet according to any one of claims 1 to 9, is characterized in that: the method comprises the following steps:
the method comprises the following steps: the circuit breaker handcart approaches to the interior of the box body (1), and the balancing weight (8) moves upwards through the lifting mechanism;
Step two: the upper baffle (11) and the lower baffle (6) are driven to open by the opening and closing mechanism in the upward moving process of the seed distributing block (8);
Step three: after the circuit breaker handcart is far away from the box body (1), the mating block (8) moves downwards under the action of self gravity to reset, and drives the lifting mechanism to reset, and simultaneously drives the upper baffle (11) and the lower baffle (6) to be closed through the opening and closing mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934952.3A CN110571694B (en) | 2019-09-29 | 2019-09-29 | Door stop mechanism for built-in contact box of switch cabinet and use method of door stop mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934952.3A CN110571694B (en) | 2019-09-29 | 2019-09-29 | Door stop mechanism for built-in contact box of switch cabinet and use method of door stop mechanism |
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| CN110571694B CN110571694B (en) | 2021-01-08 |
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| CN201910934952.3A Active CN110571694B (en) | 2019-09-29 | 2019-09-29 | Door stop mechanism for built-in contact box of switch cabinet and use method of door stop mechanism |
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| CN110571694B (en) | 2021-01-08 |
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