CN113914730A - Anti-theft door locking mechanism of middle-positioned high-voltage switch cabinet - Google Patents

Anti-theft door locking mechanism of middle-positioned high-voltage switch cabinet Download PDF

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Publication number
CN113914730A
CN113914730A CN202111185728.2A CN202111185728A CN113914730A CN 113914730 A CN113914730 A CN 113914730A CN 202111185728 A CN202111185728 A CN 202111185728A CN 113914730 A CN113914730 A CN 113914730A
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China
Prior art keywords
groove
switch cabinet
extension
rod
built
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Granted
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CN202111185728.2A
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Chinese (zh)
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CN113914730B (en
Inventor
姚金桂
郑益民
郑梅芳
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Ji'an Zhenghe Electric Power Development Co ltd
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Ji'an Zhenghe Electric Power Development Co ltd
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Priority to CN202111185728.2A priority Critical patent/CN113914730B/en
Publication of CN113914730A publication Critical patent/CN113914730A/en
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Publication of CN113914730B publication Critical patent/CN113914730B/en
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00Other devices specially designed for securing wings, e.g. with suction cups
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/02Mechanical actuation
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00Audible signalling systems; Audible personal calling systems
    • G08B3/10Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/306Accessories, e.g. windows

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

The utility model relates to the technical field of high-voltage switch cabinets, and discloses a central high-voltage switch cabinet anti-theft door locking mechanism which comprises a switch cabinet shell, wherein a protective door is arranged on the front side surface of the switch cabinet shell, two extension grooves are respectively formed in the front side surface of the switch cabinet shell, and two extension blocks of which the rear ends respectively extend into the two extension grooves are respectively and fixedly connected to one side surface of the protective door facing the switch cabinet shell. This put formula high tension switchgear theftproof lock door mechanism in, through being provided with alarm mechanism, when non-staff demolishs the guard gate, the siren sounds the police dispatch newspaper, remind patrolling and examining personnel and forming frightening to improper operating personnel on every side to reach the effect of preventing stealing, reduced the condition that electrical components stolen appears in the cubical switchboard, ensured the result of use of cubical switchboard, this lock door mechanism easy operation has simultaneously reduced the operating degree of difficulty of staff when demolishs the guard gate.

Description

Anti-theft door locking mechanism of middle-positioned high-voltage switch cabinet
Technical Field
The utility model relates to the technical field of high-voltage switch cabinets, in particular to an anti-theft door locking mechanism of a central high-voltage switch cabinet.
Background
The centrally-mounted high-voltage switch cabinet is one of electrical equipment, and the cabinet doors of the existing high-voltage switch cabinet are mostly anti-theft by using locks, so that the safety is not high;
according to the problems, compared with the prior patent publications: CN210111321U discloses an anti-theft high-voltage switch cabinet, in the scheme, a first locking mechanism is arranged above a second cabinet door, and a second locking mechanism is arranged above a third cabinet door, so that when a thief steals a cable, the first cabinet door, the second cabinet door and the third cabinet door need to be opened one by one, thereby improving the security of the utility model, and solving the problems that the existing high-voltage switch cabinet doors mostly use locks to prevent theft, and the security is not high, but the scheme has the following problems in the actual use process: this scheme is only the simple effect that reaches the theftproof through the mode that sets up multiple cabinet door and tool to lock, if improper operating personnel sends to take more time to prize the cabinet door, can open the cabinet door equally for this scheme does not possess fine theftproof effect, and the staff need open more cabinet door equally when overhauing the cabinet body, has just so seriously influenced staff's maintenance speed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the anti-theft door locking mechanism of the central high-voltage switch cabinet, which has the advantages of good anti-theft performance of the high-voltage switch cabinet and the like, and solves the problem of poor anti-theft effect of the high-voltage switch cabinet.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: a middle-positioned anti-theft door locking mechanism for a high-voltage switch cabinet comprises a switch cabinet shell, wherein a protective door is arranged on the front side surface of the switch cabinet shell, two extension grooves are respectively formed in the front side surface of the switch cabinet shell, two extension blocks of which the rear ends respectively extend into the two extension grooves are respectively and fixedly connected to one side surface of the protective door facing the switch cabinet shell, two first built-in grooves are respectively formed in the switch cabinet shell, supporting and rotating blocks are fixedly connected to the inner wall of the bottom of each first built-in groove, rotating plates are rotatably connected to the upper ends of the supporting and rotating blocks, locking rods of which the lower ends penetrate into the extension grooves are arranged on the lower surfaces of the rotating plates close to one ends of the extension blocks, the locking rods are slidably connected with the inner wall of the switch cabinet shell, locking grooves matched with the locking rods are formed in the upper surfaces of the extension blocks, two second built-in grooves which are positioned right above the first built-in grooves are respectively formed in the switch cabinet shell, the upper surface of the rotating plate close to one end of the control rod is rotatably connected with a pulling rod, the upper end of the pulling rod extends into the second built-in groove, and the pulling rod is positioned in the second built-in groove and is provided with an alarm mechanism.
Preferably, the one end that the extension piece is located the extension inslot sets up to the hypotenuse, and the one end cross-section that the check lock lever is located the extension inslot sets up to semicircle form, beneficial effect: the semicircle has increased the smooth degree of contact surface between check lock lever and the extension piece, has reduced the frictional force that the check lock lever formed when contacting with the extension piece like this to the dead condition of mechanical card appears when having prevented to contact between the two, thereby has ensured the smoothness nature of check lock lever when sliding on the extension piece inclined plane.
Preferably, the one end that the check lock lever is close to the rotor plate sets up to the U word form, sets up the movable groove that extends rotor plate left and right sides surface on the rotor plate, and the movable rod in the movable groove is cup jointed in fixedly connected with activity between two straight boards of check lock lever, beneficial effect: when the rotor plate rotated, the check lock pole passed through the movable rod and slided or rotate respectively in the movable groove, had prevented like this that the rotor plate is at the pivoted in-process, and the check lock pole rotates along with the rotor plate is synchronous with the displacement, prevented like this that the dead condition of mechanical card from appearing, has ensured the check lock pole all the time for straight-up straight down when the displacement to stability when having ensured with the locking groove joint.
Preferably, the communicating groove that runs through with first built-in groove is all seted up on the left and right sides surface of cubical switchboard shell, and the one end fixedly connected with right-hand member that the check lock lever was kept away from to the rotor plate extends the control lever of cubical switchboard shell through running through the groove, and the control lever activity cup joints and runs through inslot, beneficial effect: the control rod is movably sleeved in the through groove, so that the through groove is prevented from forming a limiting effect on the control rod, the situation that the control rod is mechanically blocked when the control rod drives the rotating plate to rotate is avoided, and the stability in use is further guaranteed.
Preferably, alarm mechanism includes the contact piece, and the lower surface setting of contact piece is in the upper end of dragging the pole, and the structure of contact piece sets up to the right angle trapezoidal form that reverses, and the built-in groove of second is provided with the push type switch on facing the inner wall on contact piece inclined plane, and the surface of cubical switchboard shell is provided with siren, beneficial effect: when the non-working personnel operate, the alarm is started to make a sound to remind surrounding patrol personnel and enable the illegal operating personnel to form terrorism, so that the anti-theft effect is achieved.
Preferably, the upper end of dragging the pole run through into the inside of contacting the piece and with contact a sliding connection, drag the one end fixedly connected with restriction board that the pole is located the contact piece, the restriction board cup joints the supporting spring on dragging the pole towards the activity of a side fixed surface who drags the pole, supporting spring's lower extreme fixed connection is on contacting the bottom inner wall of piece, beneficial effect: when the clamping block limits the contact block, the situation that the pull rod cannot be displaced is avoided, and therefore the stability of the device during operation is guaranteed.
Preferably, the communicating second joint groove with the second built-in groove is seted up to the right side surface of cubical switchboard shell, and the first joint groove of the same shape with second joint groove is seted up towards a side surface in second joint groove to the contact block, is provided with respectively with the joint piece of first joint groove and second joint groove looks adaptation in the second joint inslot, beneficial effect: the clamping block has a limiting effect on the contact block, and when the pull rod moves downwards, the contact block is not moved and does not move downwards, so that the contact block is not contacted with the push type switch, and the condition that the alarm gives an alarm is avoided.
Preferably, the form of the second clamping groove is set to be in a cross shape, and the beneficial effects are that: the condition that non-working personnel support the contact block through other parts is avoided, and the anti-theft effect on the protective door is improved.
The basic principle of the scheme is as follows: the first step is as follows: aligning an extension block on a protective door with an extension groove, installing the protective door on a switch cabinet shell in a forward-backward mode, so that the extension block extends into the extension groove to be in contact with a locking rod, the locking rod slides upwards along an inclined plane of the extension block, the extension block gradually retracts upwards into a first built-in groove, and when the locking rod and the locking groove are located at the same vertical position, the locking rod falls into the locking groove under the action of inertia, so that the extension block is fixed;
the second step is that: when the control rod is pulled downwards, one end of the rotating plate, which is far away from the locking rod, is driven to move downwards, so that one end connected with the locking rod is tilted upwards, the locking rod and the locking groove are not in contact, the extending block can be extracted from the extending groove, and the protective door is detached;
the third step: when a non-worker performs the second step of operation, when one end of the rotating plate, which is connected with the control rod, moves downwards, the rotating plate forms a downward pulling force on the pulling rod, so that the contact block is driven to move downwards, the inclined surface of the contact block is contacted with the button on the pressing switch, the contact block extrudes the button on the pressing switch, the pressing switch transmits a signal into the alarm, the alarm generates an alarm sound, surrounding inspection personnel are reminded, and the anti-theft effect is achieved;
the fourth step: when the staff carries out the operation of second step, the staff need extend into second built-in groove and first joint groove joint with the joint piece through second joint groove at first, when dragging the pole downward displacement again, the joint piece has the restriction effect to the contact block, thereby it forms decurrent extrusion force to supporting spring through the limiting plate to drag the pole downward displacement in-process, supporting spring atress takes place deformation, thereby it extends the contact block to drag the upper end of pole, the contact block does not contact with push type switch, thereby the alarm takes place the alarm sound when having prevented that the staff from demolising the guard gate.
The basic beneficial effects of the scheme are as follows: through being provided with alarm mechanism, thereby when non-staff demolishs the guard gate, the siren sounds the police dispatch newspaper, remind patrolling and examining personnel and forming the frightening to improper operating personnel on every side, thereby reach the effect of preventing stealing, the condition that electrical components stolen appears in the cubical switchboard has been reduced, the result of use of cubical switchboard has been ensured, when the staff demolishs the guard gate, the siren can not sound, the staff can carry out normal operation, the lock door mechanism easy operation of this guard gate simultaneously, thereby the operating difficulty of staff when demolishing the guard gate has been reduced.
(III) advantageous effects
Compared with the prior art, the utility model provides an anti-theft door locking mechanism of a central high-voltage switch cabinet, which has the following beneficial effects:
1. this put formula high tension switchgear burglary-resisting lock door mechanism in, through being provided with alarm mechanism, thereby when non-staff demolishs the guard gate, the siren sounds the police dispatch newspaper, remind personnel of patrolling and examining around and form the frightening to improper operating personnel, thereby reach the effect of preventing stealing, the condition that electrical components stolen appears in the cubical switchboard has been reduced, the result of use of cubical switchboard has been ensured, when the staff demolishs the guard gate, the siren can not send out the police dispatch newspaper sound, the staff can normally operate, the lock door mechanism easy operation of this guard gate simultaneously, the operating difficulty of staff when demolishing the guard gate has been reduced.
2. This put formula high tension switchgear theftproof lock door mechanism in, set up the lower extreme through with the check lock lever to semicircle form, the semicircle form has increased the smooth degree of contact surface between check lock lever and the extension piece, has reduced the frictional force that the check lock lever formed when contacting with the extension piece like this to the dead condition of mechanical card appears when having prevented to contact between the two, thereby has ensured the smoothness nature of check lock lever when extending on the piece inclined plane and sliding.
3. This put formula high tension switchgear theftproof lock door mechanism in, the check lock pole passes through the movable rod and slides or rotate respectively in the movable chute, has prevented like this that the rotor plate is at the pivoted in-process, and the check lock pole rotates along with the rotor plate is synchronous with the displacement, prevents like this that the dead condition of mechanical card from appearing, has ensured that the check lock pole is straight from top to bottom all the time when the displacement to stability when having ensured with the locking groove joint.
4. This put formula high tension switchgear theftproof lock door mechanism in, through cup jointing the control lever activity in passing through the groove, avoided passing through the groove like this and to form the restriction effect to the control lever to avoided the control lever to drive the dead condition of mechanical card to appear in the rotor plate pivoted in-process, further ensured the stability when using.
5. This put formula high tension switchgear theftproof lock door mechanism in through the form with second joint groove set up to "ten" word form, has avoided the condition that non-staff supports the contact block through other parts, has improved the theftproof effect to the guard gate like this.
Drawings
FIG. 1 is a schematic structural view of an anti-theft door locking mechanism of a central high-voltage switch cabinet according to the present invention;
FIG. 2 is a schematic diagram of a split structure of an anti-theft door locking mechanism of a central high-voltage switch cabinet according to the utility model;
FIG. 3 is a right side plan view of the enclosure of the switchgear of the present invention;
FIG. 4 is a schematic cross-sectional view of a rotating plate according to the present invention;
FIG. 5 is a schematic cross-sectional view of a first built-in slot according to the present invention;
FIG. 6 is a right plan view of a contact block of the present invention;
fig. 7 is a schematic sectional view of a second built-in groove according to the present invention.
In the figure: the switch cabinet comprises a switch cabinet shell 1, a protective door 2, an alarm 3, an extension groove 4, an extension block 5, a locking groove 6, a first built-in groove 7, a support rotating block 8, a rotating plate 9, a locking rod 10, a movable groove 11, a movable rod 12, a control rod 13, a through groove 14, a pull rod 15, a second built-in groove 16, a contact block 17, a press switch 18, a support spring 19, a first clamping groove 20, a second clamping groove 21, a clamping block 22 and a limiting plate 23.
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.
Referring to fig. 1-7, the present invention provides a new technical solution: a central anti-theft door locking mechanism for a high-voltage switch cabinet comprises a switch cabinet shell 1, wherein a protective door 2 is arranged on the front side surface of the switch cabinet shell 1, two extension grooves 4 are respectively formed in the front side surface of the switch cabinet shell 1, the two extension grooves 4 are respectively arranged on the left side and the right side of an inner cavity of the switch cabinet shell 1, and two extension blocks 5 of which the rear ends respectively extend into the two extension grooves 4 are respectively and fixedly connected to one side surface of the protective door 2 facing the switch cabinet shell 1;
two first built-in grooves 7 which are positioned right above two extension grooves 4 are respectively arranged in a switch cabinet shell 1, the inner wall of the bottom of each first built-in groove 7 is fixedly connected with a supporting rotating block 8, the upper end of each supporting rotating block 8 is rotatably connected with a rotating plate 9, the center of each rotating plate 9 is arranged on each supporting rotating block 8, so that the rotating plates 9 are equidistant levers by taking the supporting rotating blocks 8 as pivots, the lower surfaces of the rotating plates 9, which are close to one ends of the extension blocks 5, are provided with locking rods 10, the lower ends of the locking rods penetrate into the extension grooves 4, the locking rods 10 are slidably connected with the inner wall of the switch cabinet shell 1, the upper surfaces of the extension blocks 5 are provided with locking grooves 6 matched with the locking rods 10, and therefore the extension blocks 5 are fixedly arranged in the extension grooves 4, and the protective door 2 is fixed on the switch cabinet shell 1;
referring further to fig. 3, by setting the end of the extension block 5 in the extension groove 4 as a bevel edge and setting the cross section of the end of the locking rod 10 in the extension groove 4 as a semicircle, when the extension block 5 extends into the extension groove 4, the bevel of the extension block 5 contacts with the locking rod 10, and the semicircle increases the smoothness of the contact surface between the locking rod 10 and the extension block 5, so as to reduce the friction force formed when the locking rod 10 contacts with the extension block 5, thereby preventing the mechanical jam when the locking rod 10 contacts with the extension block 5, thereby ensuring the smoothness when the locking rod 10 slides on the bevel of the extension block 5, when the extension block 5 continuously extends into the extension groove 4, the locking rod 10 slides upwards along the bevel of the extension block 5, so that the extension block 5 gradually retracts upwards into the first built-in groove 7, and when the locking rod 10 and the locking groove 6 are in the same vertical position, the locking rod 10 falls into the locking groove 6 under the action of inertia, thus completing the fixation of the extension block 5;
referring to fig. 4, one end of the locking rod 10 close to the rotating plate 9 is set to be U-shaped, so that the rotating plate 9 is disposed between two straight plates of the locking rod 10, and the rotating plate 9 is provided with a movable groove 11 extending out of the surfaces of the left and right sides of the rotating plate 9, and a movable rod 12 movably sleeved in the movable groove 11 is fixedly connected between the two straight plates of the locking rod 10, so that when the rotating plate 9 rotates, the locking rod 10 slides or rotates in the movable groove 11 through the movable rod 12, thereby preventing the locking rod 10 from synchronously rotating and displacing along with the rotating plate 9 in the rotating process of the rotating plate 9, preventing the occurrence of mechanical jamming, ensuring that the locking rod 10 is always straight up and down during displacement, and ensuring stability when being clamped with the locking groove 6;
referring to fig. 5, the surfaces of the left and right sides of the switch cabinet housing 1 are respectively provided with a through groove 14 communicated with the first built-in groove 7, one end of the rotating plate 9 far from the locking rod 10 is fixedly connected with a control rod 13, the right end of which extends out of the switch cabinet housing 1 through the through groove 14, when a worker pulls the control rod 13 downwards, the end of the rotating plate 9 far from the locking rod 10 is driven to move downwards, the end connected with the locking rod 10 tilts upwards, so that the locking rod 10 and the locking groove 6 are not contacted, the extending block 5 can be extracted from the extending groove 4, the protective door 2 is removed, meanwhile, the control rod 13 is movably sleeved in the through groove 14, the width of the through groove 14 is greater than the diameter of the control rod 13, so that the through groove 14 is prevented from forming a limiting effect on the control rod 13, and the mechanical jamming of the control rod 13 in the process of driving the rotating plate 9 to rotate is avoided, the stability in use is further ensured;
two second built-in grooves 16 which are positioned right above the first built-in grooves 7 are respectively arranged in the switch cabinet shell 1, the upper surface of one end, close to the control rod 13, of the rotating plate 9 is rotatably connected with a pulling rod 15, the upper end of the pulling rod extends into the second built-in grooves 16, the pulling rod 15 is in sliding connection with the inner wall of the switch cabinet shell 1, so that a sliding groove is formed in the inner wall, in contact with the pulling rod 15, of the switch cabinet shell 1, the width of the sliding groove of the switch cabinet shell 1 is larger than that of the pulling rod 15, according to the above result, the situation that the pulling rod 15 is mechanically clamped with the sliding groove in the displacement process is also avoided, a contact block 17 is arranged at one end, positioned in the second built-in grooves 16, of the pulling rod 15, the structure of the contact block 17 is arranged in a reverse right-angle ladder shape, a press switch 18 is arranged on the inner wall, facing to the inclined plane of the contact block 17, and the press switch 18 is not repeated for the existing structure, the outer surface of the switch cabinet shell 1 is provided with the alarm 3, the alarm 3 is an existing structure and is not described in more detail, and meanwhile, the push switch 18 is connected with the alarm 3 through an external data line, so that when the contact block 17 moves downwards to press a button on the push switch 18, the push switch 18 transmits a signal into the alarm 3, and the alarm 3 generates an alarm sound to remind surrounding inspection personnel;
with further reference to fig. 6, the upper end of the pulling rod 15 penetrates through the inside of the contact block 17 and is slidably connected to the contact block 17, one end of the pulling rod 15 located in the contact block 17 is fixedly connected with a limiting plate 23, a supporting spring 19 movably sleeved on the pulling rod 15 is fixedly connected to the surface of one side of the limiting plate 23 facing the pulling rod 15, the lower end of the supporting spring 19 is fixedly connected to the inner wall of the bottom of the contact block 17, and the strength of the supporting spring 19 is greater than the pressing force of a button on the push switch 18, so that when the pulling rod 15 displaces downwards, a downward pressing force is formed on the supporting spring 19 through the limiting plate 23, the supporting spring 19 deforms under the force, and the upper end of the pulling rod 15 extends out of the contact block 17;
referring further to fig. 7, the right side surface of the switch cabinet housing 1 is provided with a second engaging groove 21 communicated with the second built-in groove 16, the second engaging groove 21 is in a cross shape, and a side surface of the contact block 17 facing the second engaging groove 21 is provided with a first engaging groove 20 having the same shape as the second engaging groove 21, and the second engaging groove 21 is provided with an engaging block 22 respectively matched with the first engaging groove 20 and the second engaging groove 21, so that when the engaging block 22 extends into the second built-in groove 16 through the second engaging groove 21 to engage with the first engaging groove 20, the engaging block 22 has a limiting effect on the contact block 17, when the pulling rod 15 is displaced downward, the contact block 17 is not moved downward, so that the contact block 17 is not contacted with the push switch 18, thereby avoiding the alarm 3 from alarming, and the shape of the second engaging groove 21 is not limited to the cross shape, the shape of the second clamping groove 21 can also be a rhomboid cone shape or a shape different from the normal shape of most existing shapes, so that the condition that non-working personnel support the contact block 17 through other parts is avoided, and the anti-theft effect of the protective door is improved;
meanwhile, the weight of the locking rod 10 is larger than the total weight of the end, far away from the locking rod 10, of the rotating plate 9, of the connection structure, so that the end, connected with the locking rod 10, of the rotating plate 9 always moves downwards.
The working principle is as follows:
when the anti-theft door locking mechanism of the central high-voltage switch cabinet is used;
the first step is as follows: aligning an extension block 5 on a protective door 2 with an extension groove 4, installing the protective door 2 on a switch cabinet shell 1 in a forward-backward manner, so that the extension block 5 extends into the extension groove 4 to be in contact with a locking rod 10, and the locking rod 10 slides upwards along the inclined plane of the extension block 5, so that the extension block 5 is gradually retracted upwards into a first built-in groove 7, and when the locking rod 10 and a locking groove 6 are in the same vertical position, the locking rod 10 falls into the locking groove 6 under the action of inertia, so that the extension block 5 is fixed;
the second step is that: when the control rod 13 is pulled downwards, one end of the rotating plate 9, which is far away from the locking rod 10, is driven to move downwards, so that one end connected with the locking rod 10 tilts upwards, the locking rod 10 and the locking groove 6 are not in contact, the extending block 5 can be extracted from the extending groove 4, and the protection door 2 is detached;
the third step: when a non-worker performs the second step of operation, when one end of the rotating plate 9 connected with the control rod 13 moves downwards, the rotating plate 9 forms a downward pulling force on the pulling rod 15, so that the contact block 17 is driven to move downwards, the inclined surface of the contact block 17 is contacted with the button on the press switch 18, the contact block 17 extrudes the button on the press switch 18, the press switch 18 transmits a signal into the alarm 3, the alarm 3 generates an alarm sound, surrounding patrol personnel are reminded, and an anti-theft effect is achieved;
the fourth step: when the staff carries out the operation of second step, the staff need extend into second built-in groove 16 and first joint groove 20 joint with joint piece 22 through second joint groove 21 at first, when dragging pole 15 downward displacement again, joint piece 22 has the restriction effect to contact block 17, thereby it forms decurrent extrusion force to supporting spring 19 through limiting plate 23 to drag pole 15 downward displacement in-process, supporting spring 19 atress takes place deformation, thereby it extends contact block 17 to drag the upper end of pole 15, contact block 17 does not contact with push type switch 18, thereby the staff has been prevented that siren 3 from taking place the alarm sound when demolising guard gate 2.

Claims (8)

1. The utility model provides a put formula high tension switchgear burglary-resisting door locking mechanism in, includes cubical switchboard shell (1), and the front side surface of cubical switchboard shell (1) is provided with guard gate (2), its characterized in that: two extension grooves (4) have been seted up respectively to the front side surface of cubical switchboard shell (1), guard gate (2) is towards extension piece (5) in two extension grooves (4) are extended respectively to one side surface difference fixedly connected with two rear ends of cubical switchboard shell (1), two first built-in grooves (7) have been seted up respectively in cubical switchboard shell (1), fixedly connected with supports turning block (8) on the bottom inner wall of first built-in groove (7), the upper end that supports turning block (8) is rotated and is connected with rotor plate (9), the lower surface that rotor plate (9) are close to extension piece (5) one end is provided with lower extreme and runs through check lock lever (10) in extension groove (4), check lock lever (10) and cubical switchboard shell (1) inner wall sliding connection, the upper surface of extension piece (5) is seted up check lock groove (6) with check lock lever (10) looks adaptation, cubical switchboard shell (1) have respectively seted up two second built-in that are located directly over first built-in groove (7) and are built-in The upper surface of one end, close to the control rod (13), of the rotating plate (9) is rotatably connected with a pulling rod (15) of which the upper end extends into the second built-in groove (16), and the pulling rod (15) is arranged in the second built-in groove (16) and is provided with an alarm mechanism.
2. The anti-theft door locking mechanism of the central high-voltage switch cabinet according to claim 1, characterized in that: one end of the extension block (5) in the extension groove (4) is set to be a bevel edge, and the section of one end of the locking rod (10) in the extension groove (4) is set to be semicircular.
3. The anti-theft door locking mechanism of the central high-voltage switch cabinet according to claim 1, characterized in that: the locking lever (10) is close to the one end of rotor plate (9) and sets up to the U word form, sets up movable groove (11) that extend rotor plate (9) left and right sides surface on rotor plate (9), and fixedly connected with activity cup joints movable rod (12) in movable groove (11) between two straight boards of locking lever (10).
4. The anti-theft door locking mechanism of the central high-voltage switch cabinet according to claim 1, characterized in that: the switch cabinet is characterized in that penetrating grooves (14) communicated with the first built-in grooves (7) are formed in the surfaces of the left side and the right side of the switch cabinet shell (1), one end, far away from the locking rod (10), of the rotating plate (9) is fixedly connected with a control rod (13), the right end of the control rod extends out of the switch cabinet shell (1) through the penetrating grooves (14), and the control rod (13) is movably sleeved in the penetrating grooves (14).
5. The anti-theft door locking mechanism of the central high-voltage switch cabinet according to claim 1, characterized in that: the alarm mechanism comprises a contact block (17), the lower surface of the contact block (17) is arranged at the upper end of the pulling rod (15), the contact block (17) is in a reversed right-angle trapezoidal structure, a push type switch (18) is arranged on the inner wall, facing the inclined surface of the contact block (17), of the second built-in groove (16), and an alarm (3) is arranged on the outer surface of the switch cabinet shell (1).
6. The anti-theft door locking mechanism of the central high-voltage switch cabinet according to claim 1, characterized in that: the upper end of dragging rod (15) runs through into the inside of contacting piece (17) and with contacting piece (17) sliding connection, and the one end fixedly connected with limiting plate (23) that dragging rod (15) is located contacting piece (17), and limiting plate (23) are towards one side fixed surface that drags rod (15) and are connected with supporting spring (19) of activity cup joint on dragging rod (15), and the lower extreme fixed connection of supporting spring (19) is on the bottom inner wall of contacting piece (17).
7. The anti-theft door locking mechanism of the central high-voltage switch cabinet according to claim 6, characterized in that: the right side surface of cubical switchboard shell (1) is seted up with communicating second joint groove (21) in second built-in groove (16), and contact block (17) are seted up towards one side surface in second joint groove (21) first joint groove (20) with the same shape in second joint groove (21), are provided with joint piece (22) with first joint groove (20) and second joint groove (21) looks adaptation in second joint groove (21) respectively.
8. The anti-theft door locking mechanism of the central high-voltage switch cabinet according to claim 7, characterized in that: the form of the second clamping groove (21) is arranged in a cross shape.
CN202111185728.2A 2021-10-12 2021-10-12 Anti-theft door locking mechanism of middle-positioned high-voltage switch cabinet Active CN113914730B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1039768U (en) * 1997-03-26 1999-01-16 Felten & Guilleaume Ag Oester A door handle or lid cabinet wiring. (Machine-translation by Google Translate, not legally binding)
CN206490322U (en) * 2017-03-01 2017-09-12 王秋艳 A kind of electric control cabinet with anti-theft feature
CN108365528A (en) * 2018-03-28 2018-08-03 刘旭玲 A kind of high and low voltage switchgear facilitating locking
CN209948407U (en) * 2019-08-09 2020-01-14 平顶山三和高压开关有限公司 Switch cabinet with safety early warning mechanism
DE102019127470B3 (en) * 2019-10-11 2020-12-10 Rittal Gmbh & Co. Kg Control cabinet with a closing element biased into an open position

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1039768U (en) * 1997-03-26 1999-01-16 Felten & Guilleaume Ag Oester A door handle or lid cabinet wiring. (Machine-translation by Google Translate, not legally binding)
CN206490322U (en) * 2017-03-01 2017-09-12 王秋艳 A kind of electric control cabinet with anti-theft feature
CN108365528A (en) * 2018-03-28 2018-08-03 刘旭玲 A kind of high and low voltage switchgear facilitating locking
CN209948407U (en) * 2019-08-09 2020-01-14 平顶山三和高压开关有限公司 Switch cabinet with safety early warning mechanism
DE102019127470B3 (en) * 2019-10-11 2020-12-10 Rittal Gmbh & Co. Kg Control cabinet with a closing element biased into an open position

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Application publication date: 20220111

Assignee: Jiangxi Huahai Power Engineering Co.,Ltd.

Assignor: JI'AN ZHENGHE ELECTRIC POWER DEVELOPMENT CO.,LTD.

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Denomination of invention: A type of anti-theft locking mechanism for central high-voltage switchgear

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