CN219672364U - Interlocking device for two locks and one key of movable high-voltage switch cabinet - Google Patents

Abstract

The utility model provides an interlocking device for two locks and one key of a removable high-voltage switch cabinet, which relates to the technical field of high-voltage switch cabinets and comprises a first interlocking mechanism arranged on a cabinet door of an isolation cabinet and a second interlocking mechanism arranged on a cabinet door of a circuit breaker, wherein the first interlocking mechanism and the second interlocking mechanism both comprise a lock body and a key capable of being matched with the lock body; the first interlocking mechanism further comprises a first linkage assembly to enable or disable removal of the key from the lock body; the second interlock mechanism further includes a second interlock assembly to enable or disable removal of the key from the lock body.

Description

Interlocking device for two locks and one key of movable high-voltage switch cabinet

Technical Field

The utility model relates to the technical field of high-voltage switch cabinets, in particular to an interlocking device for a two-lock one-key of a removable high-voltage switch cabinet.

Background

The 'interlocking' of the high-voltage switch cabinet is an important measure for ensuring the safe operation of a power grid and the safety of equipment and personnel, related regulations are made on interlocking by GB/T3906-20203.6kV-40.5kV alternating current metal closed switch equipment and control equipment, in a high-voltage power distribution room, the removable high-voltage switch cabinet has a large proportion, so that the five-protection interlocking of the removable high-voltage switch cabinet is particularly important, the configuration mode of most factories for realizing the two-lock one-key type of 'preventing the on-load pulling-in isolating switch' is also remained on an IP protection plate of a handcart for opening holes for installation, the operation of opening the doors of operators is needed, and if danger occurs during the operation of the handcart, operators in front of the cabinet are greatly damaged, and related equipment facilities are possibly damaged.

Disclosure of Invention

The utility model aims to provide an interlocking device for a two-lock one-key of a removable high-voltage switch cabinet, which is used for achieving the technical effects of improving the safety of operators and equipment.

The utility model is realized by the following technical scheme: the circuit breaker door locking mechanism comprises a first interlocking mechanism arranged on a door of the isolation cabinet, and a second interlocking mechanism arranged on a door of the circuit breaker, wherein the first interlocking mechanism and the second interlocking mechanism both comprise a lock body and a key which can be matched with the lock body;

the first interlocking mechanism further comprises a first linkage assembly to enable or disable removal of the key from the lock body;

the second interlock mechanism further includes a second interlock assembly to enable or disable removal of the key from the lock body.

In order to better realize the utility model, the first linkage assembly further comprises a push rod arranged below the lock body and an interlocking slide plate arranged below the push rod, wherein the interlocking slide plate can move below the push rod;

when the lock body pushes the ejector rod to move downwards, the interlocking sliding plate can abut against the end part of the ejector rod, so that a key cannot be taken out of the lock body; or the interlocking slide plate is not abutted against the end part of the ejector rod, so that the key can be taken out from the lock body.

In order to better realize the utility model, a chassis is further arranged in the movable high-voltage switch cabinet, a positioning pin is arranged on the chassis, a strip-shaped groove is arranged on the interlocking slide plate, the end part of the interlocking slide plate can extend out of the side wall of the chassis, and the positioning pin can pass through the strip-shaped groove, so that the interlocking slide plate is driven to move below the ejector rod by pushing of the chassis.

In order to better realize the utility model, further, a tension spring is also arranged on the interlocking slide plate, and the free end of the tension spring is connected with the side wall of the chassis truck so as to pull the interlocking slide plate to face to the lower part of the ejector rod.

In order to better realize the utility model, the door further comprises a first cabinet door handle hole baffle plate arranged on the cabinet door of the isolation cabinet.

In order to better realize the utility model, the first linkage assembly further comprises a push rod seat, a spring is arranged in the push rod seat, the push rod penetrates through the spring of the push rod seat and extends outwards to the bottom of the lock body, one end of the spring is connected with the inner wall of the push rod seat, and the other end of the spring is connected with the push rod.

In order to better realize the utility model, the first linkage assembly further comprises a first installation body, the first installation body is further provided with a through hole, the lock body corresponding to the first interlocking mechanism is installed on the first installation body, and the lock core of the lock body can be inserted into the through hole.

In order to better realize the utility model, the second linkage assembly further comprises an interlocking L plate, a bottom plate of the interlocking L plate is provided with a through hole, a lock cylinder of the second interlocking mechanism corresponding to the lock body can pass through the through hole, the end part of a side plate of the interlocking L plate is provided with an interlocking rod, and the free end of the interlocking rod is hinged with a second cabinet door handle hole baffle;

when the lock cylinder of the lock body is inserted into the interlocking L plate, the key can be taken out from the lock body;

when the lock core of the lock body is separated from the interlocking L plate, the key cannot be taken out from the lock body.

In order to better realize the utility model, a second installation body is further arranged below the bottom plate of the interlocking L plate, and the second interlocking mechanism is installed on the second installation body corresponding to the lock body.

In order to better realize the utility model, the interlocking rod further comprises an interlocking vertical rod and an interlocking cross rod, wherein the interlocking vertical rod is movably connected with the end part of the side plate of the interlocking L plate, the free end of the interlocking vertical rod is hinged with one end of the interlocking cross rod, and the other end of the interlocking cross rod is hinged with a second cabinet door handle hole baffle.

The beneficial effects of the utility model are as follows:

according to the utility model, the first interlocking mechanism is arranged on the cabinet door of the isolation cabinet, the second interlocking mechanism is arranged on the cabinet door of the circuit breaker, and only one key is inserted into the exterior of the cabinet door of the isolation cabinet during installation, the key can be taken out from the exterior of the cabinet door of the isolation cabinet only after the key is correctly operated, the taken key is inserted into the exterior of the cabinet door of the circuit breaker again, and the circuit breaker can be correspondingly operated only after the key is correctly operated.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the following brief description will be given of the drawings required for the present utility model, it being understood that the following drawings only illustrate some embodiments of the present utility model and are therefore not to be considered limiting in scope, and that other relevant drawings may be obtained from these drawings without the benefit of the inventive effort to a person of ordinary skill in the art.

FIG. 1 is a schematic diagram illustrating a first interlocking mechanism of the present utility model installed on a door of an isolation cabinet;

FIG. 2 is a second schematic installation diagram of the first interlocking mechanism provided by the utility model installed on a door of an isolation cabinet;

FIG. 3 is a third schematic view of the first interlocking mechanism of the present utility model installed on a door of an isolation cabinet;

fig. 4 is a schematic diagram illustrating the installation of a second interlock mechanism provided by the present utility model on a door of a circuit breaker cabinet;

fig. 5 is a second installation schematic diagram of the second interlock mechanism provided by the utility model installed on a door of a circuit breaker cabinet;

fig. 6 is a third installation schematic diagram of the second interlock mechanism provided by the present utility model installed on a door of a circuit breaker cabinet;

FIG. 7 is a schematic structural view of a first interlocking mechanism according to the present utility model;

FIG. 8 is a schematic diagram of a second interlock mechanism provided by the present utility model;

FIG. 9 is a schematic diagram showing a key removable structure according to the present utility model;

FIG. 10 is a schematic diagram showing a key non-removable structure according to the present utility model;

icon:

001-isolation cabinet door, 002-circuit breaker cabinet door, 003-chassis car, 004-locating pin, 005-first cabinet door handle hole baffle, 006-second cabinet door handle hole baffle, 100-first interlocking mechanism, 101-lock body, 102-lock core, 110-first linkage subassembly, 111-ejector pin, 112-interlocking slide, 113-bar slot, 114-extension spring, 115-ejector pin seat, 116-spring, 117-first installation body, 200-second interlocking mechanism, 210-second linkage subassembly, 211-interlocking L board, 212-interlocking lever, 2121-interlocking montant, 2122-interlocking horizontal pole, 213-second installation body.

Detailed Description

The technical scheme of the present utility model will be described below with reference to the accompanying drawings.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present utility model, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 10, the present utility model provides an interlocking device for two locks and one key of a removable high voltage switch cabinet, in which most manufacturers of two locks and one key still stay on an IP protection plate of a handcart for opening holes in the prior art, which requires an operator to open the door for operation, if danger occurs during operation, the operator in front of the cabinet is greatly damaged, and related equipment may be damaged.

The interlocking device mainly comprises a first interlocking mechanism 100 and a second interlocking mechanism 200, wherein the first interlocking mechanism 100 is installed on a cabinet door 001 of an isolation cabinet, the second interlocking mechanism 200 is installed on a cabinet door 002 of a circuit breaker, and the first interlocking mechanism 100 and the second interlocking mechanism 200 are provided with a lock body 101 and have only one key (not shown in the figure).

The structure of the first interlocking mechanism 100 will now be described in detail, the first interlocking mechanism 100 includes, in addition to the lock body 101, a first interlocking assembly 110 for interlocking with the lock body 101, where the first interlocking assembly 110 mainly includes a push rod 111 disposed below the lock body 101, and an interlocking slide plate 112 disposed below the push rod 111, as shown in fig. 1-3, in order to enable the lock body 101 to be better mounted on the cabinet door 001, a first mounting body 117 is further disposed, the first mounting body 117 is fixedly mounted on the cabinet door 001 through a pin, and then the lock body 101 is mounted on the first mounting body 117, a through hole is further disposed on the first mounting body 117, so that the lock cylinder 102 on the lock body 101 is conveniently inserted, a lock hole is correspondingly disposed outside the cabinet door 001, and a key is inserted into and placed on the lock body 101 through the lock hole, so that the lock cylinder 102 can be disengaged from the through hole or inserted into the through hole.

Under the action of the key, the lock body 101 is made to move downwards and further pushes the ejector rod 111 to move downwards, an interlocking slide plate 112 is arranged below the ejector rod 111, the interlocking slide plate 112 can move below the ejector rod 111, particularly, a bar-shaped groove 113 is formed in the interlocking slide plate 112, besides, a locating pin 004 is arranged on a chassis 003 in the movable high-voltage switch cabinet, the interlocking slide plate 112 is installed in the chassis 003, the end part of the interlocking slide plate 112 extends out of the chassis 003 and extends towards a cabinet door 001 of the isolation cabinet, during installation, the locating pin 004 is arranged in the bar-shaped groove 113 of the interlocking slide plate 112, the length of the bar-shaped groove 113 on the interlocking slide plate 112 is related to the running distance of the chassis 003 and the matching size of the ejector rod 111, and the chassis 003 belongs to the prior art and is not described in detail herein.

Still be equipped with first cabinet door handle hole baffle 005 on isolator cabinet door 001, this first cabinet door handle hole baffle 005 is through the knob outside isolator cabinet door 001 (the knob is prior art, do not carry out too much explanation here), can make first cabinet door handle hole baffle 005 rotate, make it expose first cabinet door handle hole, the rethread handle (the handle is prior art, do not carry out too much explanation here) is connected with chassis car 003, can make chassis car 003 remove in the high-voltage switch cabinet of removing, thereby drive locating pin 004 and remove in the bar slot 113 of interlocking slide 112, when chassis car 003 reaches certain position, then further drive interlocking slide 112 removes to the high-voltage switch cabinet, thereby when being ejector pin 111 moves down, can not contact with interlocking slide 112, the rotation of handle can be stopped after the prescribed position that chassis car 003 reached.

Through the above operation, the interlocking slide plate 112 can slide on the bottom of the push rod 111 and achieve the purpose of whether or not to contact with the bottom of the push rod 111.

In order to make the structure of the device more perfect, therefore, a post rod seat 115 is further provided, the post rod seat 115 is in a shape of a "[" as shown in fig. 3 and 7, the post rod seat 115 is installed in the cabinet door 001 of the isolation cabinet through a pin, the post rod 111 passes through the post rod seat 115, and the top of the post rod 111 is connected with the lock body 101, so that the post rod 111 can have a certain upward force, therefore, a spring 116 is further provided in the post rod seat 115, when the post rod 111 is installed, the post rod 111 passes through the post rod seat 115, one end of the spring 116 is connected with the bottom of the post rod seat 115, the other end of the spring 116 is connected with the post rod 111, the post rod 111 can have upward attraction under the action of the elastic force of the spring 116, and the lock cylinder 102 of the further lock body 101 can not fall out of the first installation body 117 at will, so as to prevent the occurrence of errors caused by the self causes.

Similarly, a tension spring 114 is further arranged on the interlocking slide plate 112, one end of the tension spring 114 is connected with the interlocking slide plate 112, the other end of the tension spring 114 is connected with the side wall of the chassis 003, and under the action of the tension spring 114, the interlocking slide plate 112 always has a driving force in the bottom direction of the ejector rod 111.

In the case of normal installation of the first interlocking mechanism 100, the key is inserted into the lock body 101 and cannot be removed, and the state of the key outside the cabinet door 001 is in a state of not being removable, as shown in fig. 9.

The second interlocking mechanism 200 is mounted on the breaker cabinet door 002, and the second interlocking mechanism 200 is not inserted with a key when the breaker cabinet door 002 is in a removable key state as shown in fig. 10.

The second interlocking mechanism 200 includes, in addition to the lock body 101, a second interlocking assembly 210, where the second interlocking assembly 210 includes a second mounting body 213 for mounting the lock body 101, is L-shaped, and mounts the lock body 101 on the second mounting body 213, and includes an L-shaped interlocking L plate 211, where a bottom plate of the interlocking L plate 211 is provided with a through hole so as to facilitate the lock cylinder 102 of the lock body 101 to pass through, an interlocking rod 212 is connected to a side plate end of the interlocking L plate 211, and a second cabinet door handle hole baffle 006 is hinged to a free end of the interlocking rod 212.

Under normal conditions, as shown in fig. 4-6 and 8, the lock core 102 of the lock body 101 is inserted into the interlocking L plate 211, the knob outside the circuit breaker cabinet door 002 cannot twist the second cabinet door handle hole baffle 006, and only after the circuit breaker cabinet door 002 is inserted with a key, the lock core 102 of the lock body 101 leaves the interlocking L plate 211, at this time, the key is in an undesirable state, and then the knob outside the cabinet door is rotated, and then the knob can drive the second cabinet door handle hole baffle 006 to rotate, so that the second cabinet door handle hole is exposed, and then the operation of the corresponding circuit breaker can be performed.

The interlocking bar 212 mainly comprises an interlocking vertical bar 2121 and an interlocking cross bar 2122, wherein the interlocking vertical bar 2121 is arranged at the end part of the side plate of the interlocking L plate 211, the interlocking cross bar 2122 is arranged at the bottom of the interlocking vertical bar 2121 and is hinged with the interlocking vertical bar 2121, and the middle part of the interlocking vertical bar is also connected with the cabinet door through a positioning pin 004.

When the lock cylinder 102 is inserted into the interlocking L plate 211, the second door handle hole shutter 006 is rotated by the knob, and the motion trace at this time is: the second cabinet door handle hole baffle 006 rotates leftwards, the interlocking transverse plate is linked, and the interlocking vertical plate is driven to rotate around the positioning pin 004, when the interlocking vertical plate inclines towards the interlocking L plate 211, the interlocking L plate 211 cannot move like the right due to the insertion of the lock cylinder 102, so that the second cabinet door handle hole is failed to be opened; when the lock cylinder 102 is separated from the interlocking L plate 211, the interlocking vertical plate can drive the interlocking L plate 211 to move rightward, so that the handle hole of the second cabinet door can be opened.

The working flow of the utility model is as follows:

when the first interlocking mechanism 100 of the isolation cabinet door 001 is normally installed, the states of the exterior of the isolation cabinet doors, which are not desirable, are as shown in fig. 10, the key is inserted, the knob outside the isolation cabinet can rotate to open the handle hole baffle 005 of the first cabinet door, the second interlocking mechanism 200 is installed in the circuit breaker cabinet door 002, the exterior of the circuit breaker cabinet door 002 is in the desirable states of the key as shown in fig. 9, and the knob outside the isolation cabinet can not rotate to open the handle hole baffle 006 of the second cabinet door.

The correct operation flow is as follows:

the isolation cabinet is operated firstly, the first cabinet door handle baffle is opened through the knob, the chassis vehicle 003 in the isolation cabinet door 001 moves towards the inner direction of the cabinet through handle shaking, in the process of moving towards the inner direction of the cabinet, after the chassis vehicle 003 reaches a set position, the interlocking slide plate 112 is driven to move towards the inner direction of the cabinet, at the moment, the key is rotated outside the cabinet, the lock cylinder 102 of the lock body 101 is separated from the first installation body 117, the ejector rod 111 moves downwards, and the key is turned to be in a key-taking state.

The key on the isolator cabinet door 001 is taken down to come outside the circuit breaker cabinet door 002, insert the key, rotate the key, make the key be the undesirable state, lock core 102 of lock body 101 leaves interlocking L board 211 this moment, and the knob outside the circuit breaker cabinet door 002 opens second cabinet door handle hole baffle 006, then can carry out relevant operations such as circuit breaker.

Incorrect manner of operation:

for the first interlocking mechanism 100, when the key outside the cabinet door 001 of the isolation cabinet is directly rotated, since the interlocking slide plate 112 is arranged at the bottom of the ejector rod 111, after the key is rotated, the lock body 101 can drive the ejector rod 111 to move downwards, when the lock body moves to the interlocking slide plate 112, the ejector rod 111 cannot continue to move downwards due to the blocking of the interlocking slide plate 112, and at the moment, the lock cylinder 102 of the lock body 101 cannot be taken out from the first installation body 117, so that the key cannot be taken down, and only the lock body is normally operated, and only the lock body can be taken out.

For the second interlocking mechanism 200, if the key is not inserted, the outside of the circuit breaker cabinet door 002 is in a key-removable state, and the second cabinet door handle baffle cannot be removed by rotating the knob outside the cabinet door, so that corresponding handle operation cannot be performed.

Through the multiple modes, misoperation can be prevented, and the safety of operators, equipment and the like is improved.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. An interlocking device for two locks and one key of a removable high-voltage switch cabinet is characterized by comprising a first interlocking mechanism (100) arranged on a cabinet door (001) of the isolation cabinet, and a second interlocking mechanism (200) arranged on a cabinet door (002) of the circuit breaker, wherein the first interlocking mechanism (100) and the second interlocking mechanism (200) both comprise a lock body (101) and a key capable of being matched with the lock body (101);

the first interlock mechanism (100) further comprises a first linkage assembly (110) to enable or disable removal of the key from within the lock body (101);

the second interlock mechanism (200) further includes a second linkage assembly (210) to enable or disable removal of the key from within the lock body (101).

2. The apparatus of claim 1, wherein the locking device comprises a locking device,

the first linkage assembly (110) comprises a push rod (111) arranged below the lock body (101) and an interlocking slide plate (112) arranged below the push rod (111), and the interlocking slide plate (112) can move below the push rod (111);

when the lock body (101) pushes the ejector rod (111) to move downwards, the interlocking sliding plate (112) can abut against the end part of the ejector rod (111) so that a key cannot be taken out from the lock body (101); or the interlocking slide plate (112) is not abutted against the end part of the ejector rod (111) so that the key can be taken out from the lock body (101).

3. The interlock for a two lock and one key of a removable high voltage switchgear as claimed in claim 2,

be equipped with chassis car (003) in the formula of moving high tension switchgear, set up locating pin (004) on chassis car (003), be equipped with bar groove (113) on interlocking slide (112), the tip of interlocking slide (112) can stretch out chassis car (003) lateral wall, just locating pin (004) can pass bar groove (113), through the promotion of chassis car (003) so that drive interlocking slide (112) are removed in ejector pin (111) below.

4. The two-lock-to-one-key interlock for a removable high voltage switchgear as claimed in claim 3,

and a tension spring (114) is further arranged on the interlocking slide plate (112), and the free end of the tension spring (114) is connected with the side wall of the chassis (003) so as to pull the interlocking slide plate (112) to face to the lower part of the ejector rod (111).

5. The interlock for a two lock and one key of a removable high voltage switchgear as claimed in claim 2,

the first linkage assembly (110) further comprises a push rod seat (115), a spring (116) is arranged in the push rod seat (115), the push rod (111) penetrates through the spring (116) of the push rod seat (115) and extends outwards to the bottom of the lock body (101), one end of the spring (116) is connected with the inner wall of the push rod seat (115), and the other end of the spring (116) is connected with the push rod (111).

6. The interlock for two-lock-and-key removal switch cabinet of any one of claims 2 to 5, wherein,

still including setting up first cabinet door handle hole baffle (005) on isolator cabinet door (001).

7. The two-lock-to-one key interlock for a removable high voltage switchgear of claim 6 wherein,

the first linkage assembly (110) further comprises a first installation body (117), a through hole is further formed in the first installation body (117), the lock body (101) corresponding to the first interlocking mechanism (100) is installed on the first installation body (117), and a lock cylinder (102) of the lock body (101) can be inserted into the through hole.

8. The apparatus of claim 1, wherein the locking device comprises a locking device,

the second linkage assembly (210) further comprises an interlocking L plate (211), a through hole is formed in the bottom plate of the interlocking L plate (211), a lock cylinder (102) of the second linkage mechanism (200) corresponding to the lock body (101) can penetrate through the through hole, an interlocking rod (212) is arranged at the end part of the side plate of the interlocking L plate (211), and a second cabinet door handle hole baffle (006) is hinged to the free end of the interlocking rod (212);

when a lock cylinder (102) of the lock body (101) is inserted into the interlocking L plate (211), the key can be taken out from the lock body (101);

when the lock cylinder (102) of the lock body (101) is separated from the interlocking L plate (211), the key cannot be taken out from the lock body (101).

9. The interlocking device for two locks and one key of a removable high-voltage switch cabinet according to claim 8, wherein a second mounting body (213) is further arranged below the bottom plate of the interlocking L plate (211), and the second interlocking mechanism (200) is mounted on the second mounting body (213) corresponding to the lock body (101).

10. The interlocking device for two locks and one key of a removable high voltage switch cabinet according to claim 8, wherein the interlocking rod (212) comprises an interlocking vertical rod (2121) and an interlocking cross rod (2122), the interlocking vertical rod (2121) is movably connected with the end part of the side plate of the interlocking L plate (211), the free end of the interlocking vertical rod (2121) is hinged with one end of the interlocking cross rod (2122), and the other end of the interlocking cross rod (2122) is hinged with a second cabinet door handle hole baffle (006).