Novel cabinet door lock device and novel cabinet door interlocking structure of switch cabinet

Abstract

The utility model relates to the field of electrical safety, in particular to a novel cabinet door lock device and a novel cabinet door interlocking structure of a switch cabinet, the novel cabinet door lock device comprises a fixed seat, a hook plate, a pull rod and a support, the fixed seat is installed on a cabinet body, the support is L-shaped, one end of the support is fixedly installed on a cabinet door, and the other end of the support is provided with a lock hole; one end of the hook plate is hinged to the fixing base, the other end of the hook plate is provided with an inclined kidney-shaped hole, the bottom of the hook plate is provided with a spring bolt used for being inserted into the lock hole, the back face of the spring bolt is provided with a limiting plate, the pull rod is vertically installed on the fixing base in a sliding mode, and the bottom of the pull rod is movably connected with the kidney-shaped hole through a pin shaft. The novel cabinet door interlocking structure of the switch cabinet comprises an SF6 load switch assembly, a novel cabinet door lock device and a lower cabinet door. According to the utility model, the SF6 load switch assembly is interlocked with the lower cabinet door through the mechanical interlocking rod, so that the lower cabinet door replaces a traditional sealing plate to be installed on the cabinet body, and the operation convenience of a cable chamber is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical safety field especially relates to a novel cabinet door lock device and switch cabinet novel cabinet door interlocking structure. BACKGROUND

[0002] As shown in the accompanying Figure 7 and the accompanying Figure 8 , the existing switch cabinet cable chamber is installed with the sealing plate 20' below the layer partition plate 30, the two sides of the sealing plate 20' are fixed through buckle, when needing to operate the cable chamber, need to move the sealing plate by a distance, make it separate from buckle, then can open, and the SF6 load switch assembly 10 installed in the switch cabinet is generally configured with mechanical interlocking rod 10.1, is used to form interlocking with the sealing plate 20', makes the lower sealing plate unable to open when closing, and when the lower sealing plate is not installed in place, cannot carry out closing, to ensure safety.

[0003] As shown in the accompanying Figure 8 , the bottom of mechanical interlocking rod 10.1 is equipped with the inverted " T " type limiting piece 10.2, the bracket 20'.1 is installed on the sealing plate 20', and the opening slot 20'.1.1 is formed in the bracket, in the locking state, the limiting piece is located in the opening slot, at this time, the sealing plate cannot move up through the limiting of mechanical interlocking rod, so the sealing plate cannot be opened, therefore only after opening, as shown in the accompanying Figure 9 , the mechanical interlocking rod moves up, at this time, the sealing plate has space to move up, and then separates from buckle and takes out the sealing plate, and similarly, since the sealing plate is taken out, the mechanical interlocking rod cannot be pulled down through the bracket, and cannot complete closing action, so that the interlocking of SF6 load switch assembly and sealing plate is realized.

[0004] The above structure is more troublesome when needing to operate the cable chamber, and with the development of technology, it is required to set lower cabinet door to replace the sealing plate to reduce operation difficulty and improve efficiency, when the lower cabinet door replaces the sealing plate, the original mechanical interlocking rod cannot be applicable to the interlocking of cabinet door, so a new interlocking structure needs to be developed to solve the above problems.

[0005] Based on this, the application provides a switch cabinet novel cabinet door interlocking structure, which realizes the interlocking of lower cabinet door and SF6 load switch assembly. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the technical problems in the prior art, and therefore provides a novel cabinet door lock device and switch cabinet novel cabinet door interlocking structure, which can realize the interlocking of lower cabinet door and SF6 load switch assembly.

[0007] The utility model solves the technical problems by adopting the technical scheme of:

[0008] In the first aspect, the utility model provides a novel cabinet door lock device, which comprises a fixed seat, a hook plate, a pull rod and a bracket, wherein the fixed seat is installed on a cabinet body; the bracket is in the shape of L, one end of which is fixedly installed on a cabinet door, and the other end is provided with a lock hole; one end of the hook plate is hingedly connected to the fixed seat, the other end is provided with an inclined waist round hole, and the bottom of the hook plate is provided with a lock tongue for being inserted into the lock hole, and the back of the lock tongue is provided with a limiting plate; the pull rod is vertically and slidingly installed on the fixed seat, and the bottom of the pull rod is movably connected to the waist round hole through a pin shaft.

[0009] In some optional embodiments, a U-shaped groove in the horizontal direction is arranged on the hinged lug plate of the fixed seat, a pin shaft assembly is arranged in the hinged hole of the hook plate, and the hook plate is fixedly installed in the U-shaped groove on the hinged lug plate through the pin shaft assembly.

[0010] In some optional embodiments, the pin shaft assembly comprises a bolt, a nut and a pad, the pad is arranged on both sides of the hook plate, and the bolt is screwed through the pad, the hook plate and the nut.

[0011] In some optional embodiments, the pin shaft assembly further comprises a limiting block, and the limiting block is fixedly installed at both ends on the hinged lug plate, so that the bolt is located in the round hole formed by the U-shaped groove and the limiting block.

[0012] In some optional embodiments, the cross section of the pull rod is in the shape of square.

[0013] In the second aspect, a novel cabinet door interlocking structure of a switch cabinet is provided, which comprises an SF6 load switch assembly, the SF6 load switch assembly is provided with a mechanical interlocking rod; the novel cabinet door lock device and a lower cabinet door are further included, the fixed seat of the novel cabinet door lock device is fixedly installed at the bottom of a layer partition plate, and the pull rod of the novel cabinet door lock device is fixedly connected to the mechanical interlocking rod, the lower cabinet door and an upper cabinet door of the cabinet body are fixedly installed on a frame through a hinge in parallel, and the bracket of the novel cabinet door lock device is installed on the inner wall of the lower cabinet door.

[0014] In some optional embodiments, the SF6 load switch assembly adopts an FLN36 type SF6 load switch assembly.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The novel cabinet door lock device has novel structure design, and the SF6 load switch assembly is interlocked with the lower cabinet door through the mechanical interlocking rod, so that the lower cabinet door replaces the traditional sealing plate installed on the cabinet body, the convenience of operation on the cable chamber is improved, and the appearance of the cabinet body is more beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the following embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings, wherein:

[0018] Figure 1 is the front perspective view of the novel cabinet door lock device provided by the present application;

[0019] Figure 2 is the back perspective view of the novel cabinet door lock device provided by the present application;

[0020] Figure 3 is the side view of the locking state of the novel cabinet door lock device provided by the present application;

[0021] Figure 4 is the side view of the unlocking state of the novel cabinet door lock device provided by the present application;

[0022] Figure 5 is the installation structure diagram of the novel cabinet door interlocking structure of the switch cabinet provided by the present application;

[0023] Figure 6 is Figure 5 the partial enlarged view provided by the present application;

[0024] Figure 7 is the installation structure diagram of the existing cabinet door interlocking structure;

[0025] Figure 8 is Figure 7 the partial enlarged view provided by the present application;

[0026] Figure 9 is the unlocking state diagram of the existing cabinet door interlocking structure.

[0027] In the drawings, the component list represented by each reference numeral is as follows:

[0028] 1 - fixed seat, 1.1 - U-shaped groove, 2 - hook plate, 2.1 - waist round hole, 2.2 - lock tongue, 2.3 - limiting plate, 3 - pull rod, 4 - support, 5 - pin shaft assembly, 5.1 - bolt, 5.2 - nut, 5.3 - cushion block, 5.4 - limiting block, 4.1 - lock hole, 10 - SF6 load switch assembly, 10.1 - mechanical interlocking rod, 10.2 - limiting piece, 20 - lower cabinet door, 20' - sealing plate, 20' 1 - support, 20' 1.1 - open slot, 30 - layer partition plate. DETAILED DESCRIPTION

[0029] It should be understood that the specific embodiments described herein are merely illustrative of the present application and do not limit the present application.

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0033] Embodiment one

[0034] As shown in the accompanying Figure 1 to the accompanying Figure 4 , the present embodiment provides a new cabinet door lock device, which comprises a fixed seat 1, a hook plate 2, a pull rod 3 and a bracket 4, wherein: the fixed seat 1 is installed on the cabinet body; the bracket 4 is "L" type, one end of which is fixedly installed on the cabinet door, and the other end is provided with a lock hole 4.1; one end of the hook plate 2 is hinged to the fixed seat 1, and the other end is provided with an inclined waist round hole 2.1, and the bottom thereof is provided with a lock tongue 2.2 inserted into the lock hole 4.1, and the back of the lock tongue 2.2 is provided with a limiting plate 2.3; the pull rod 3 is vertically slidably installed on the fixed seat 1, and the bottom thereof is movably connected with the waist round hole 2.1 through a pin shaft.

[0035] Preferably, the cross section of the pull rod 3 is square, which makes the connection with the hook plate not subject to torsion, thus prolonging the service life of the pin shaft.

[0036] Working principle: in the locked state, as shown in the attached Figure 3 figure, the locking tongue of the hook plate is inserted into the lock hole; when unlocking is needed, the pull rod is pulled up to a certain displacement, so that the hook plate rotates counterclockwise around its hinge point, and the locking tongue is separated from the lock hole, as shown in the attached Figure 4 figure, during the unlocking process, the cabinet door is automatically opened to a certain angle under the push of the limiting plate; when closing the door, the bracket pushes the limiting plate, so that the hook plate rotates clockwise around its hinge point, and the locking tongue is reinserted into the lock hole, thus completing the locking.

[0037] Embodiment two

[0038] Based on embodiment one, as shown in the attached Figure 1 figure, this embodiment is provided with a horizontal U-shaped groove 1.1 on the hinge lug plate of the fixed seat 1, a pin shaft assembly 5 is installed in the hinge hole of the hook plate 2, and the hook plate 2 is fixedly installed in the U-shaped groove 1.1 on the hinge lug plate through the pin shaft assembly 5. This design facilitates the assembly of the hook plate and the pin shaft assembly, and realizes modular disassembly, thus improving the disassembly efficiency.

[0039] Preferably, the pin shaft assembly 5 of this embodiment includes a bolt 5.1, a nut 5.2 and a pad 5.3, the pad 5.3 is arranged on both sides of the hook plate 2, and the bolt 5.1 penetrates the pad 5.3, the hook plate 2 and the nut 5.2.

[0040] Embodiment three

[0041] Based on embodiment two, as shown in the attached Figure 1 figure, this embodiment is further provided with a limiting block 5.4, which is fixedly installed at both ends of the hinge lug plate, so that the bolt 5.1 is located in the circular hole formed by the U-shaped groove 1.1 and the limiting block 5.4. This design ensures the reliability of the installation of the pin shaft assembly.

[0042] Embodiment four

[0043] This embodiment provides a novel cabinet door interlocking structure for a switch cabinet, as shown in the attached Figure 5 and Figure 6As shown, including SF6 load switch assembly 10, the new cabinet door lock device and the lower cabinet door 20 described in embodiment one or embodiment two or embodiment three, wherein: the SF6 load switch assembly 10 is provided with a mechanical interlocking rod 10.1; the fixed seat 1 of the new cabinet door lock device is fixedly installed at the bottom of the layer partition plate 30, and the pull rod 3 thereof is fixedly connected with the mechanical interlocking rod 10.1, the lower cabinet door 20 is hingedly fixed on the frame in parallel with the upper cabinet door of the cabinet body, and the bracket 4 of the new cabinet door lock device is installed on the inner wall of the lower cabinet door 20.

[0044] Preferably, the SF6 load switch assembly 10 of the embodiment adopts the FLN36 type SF6 load switch assembly, which is directly applied to the prior art and will not be described here.

[0045] Working principle: as shown in the accompanying Figure 6 , the lower cabinet door is in a locked state; when the cable chamber needs to be operated, the SF6 load switch is first opened, and the mechanical interlocking rod goes up after opening, at this time, the hook plate rotates counterclockwise under the pulling of the pull rod, so that the lock tongue is separated from the lock hole, and the accompanying Figure 4 , when the lock tongue rotates, the lower cabinet door is automatically opened to a certain angle under the pushing of the limiting plate, at this time, the cable chamber can be safely operated; after the operation is completed, the lower cabinet door is closed, and during the closing process, the bracket pushes the limiting plate, so that the hook plate rotates clockwise, and the hook plate pulls down the pull rod at the same time, and the SF6 load switch is unlocked; finally, the SF6 load switch is closed, ensuring the safety of the operation.

[0046] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, are all included in the patent protection range of the present application.

Claims

1. A novel cabinet door lock device, characterized by: The utility model relates to a new cabinet door lock device, which comprises a fixed seat, a hook plate, a pull rod and a support, wherein: The fixed seat is mounted on a cabinet body; The support is in the shape of L, one end of which is fixedly mounted on a cabinet door, and the other end is provided with a lock hole; One end of the hook plate is hingedly connected to the fixed seat, the other end is provided with an inclined waist round hole, and the bottom is provided with a lock tongue for inserting into the lock hole, and the back of the lock tongue is provided with a limiting plate; The pull rod is vertically and slidingly mounted on the fixed seat, and the bottom is movably connected to the waist round hole through a pin shaft.

2. The novel cabinet door lock device according to claim 1, characterized in that: A horizontal U-shaped groove is arranged on the hinged lug plate of the fixed seat, a pin shaft assembly is arranged in the hinged hole of the hook plate, and the hook plate is fixedly mounted in the U-shaped groove on the hinged lug plate through the pin shaft assembly.

3. The novel cabinet door lock device according to claim 2, characterized in that: The pin shaft assembly comprises a bolt, a nut and a pad, the pad is arranged on both sides of the hook plate, and the bolt is screwed through the pad, the hook plate and the nut.

4. The novel cabinet door lock device according to claim 3, characterized in that: The pin shaft assembly further comprises a limiting block, and both ends of the limiting block are fixedly mounted on the hinged lug plate, so that the bolt is located in the round hole formed by the U-shaped groove and the limiting block.

5. The novel cabinet door lockset device according to claim 1, wherein: The cross section of the pull rod is square.

6. A novel interlocking structure of a cabinet door of a switch cabinet, comprising an SF6 load switch assembly, wherein the SF6 load switch assembly is provided with a mechanical interlocking rod; characterized in that: The utility model further relates to a new cabinet door lock device and a lower cabinet door, the fixed seat of the new cabinet door lock device is fixedly mounted on the bottom of a layer partition plate, and the pull rod is fixedly connected with a mechanical interlocking rod, the lower cabinet door is fixed on a frame through a hinge in parallel with the upper cabinet door of the cabinet body, and the support of the new cabinet door lock device is mounted on the inner wall of the lower cabinet door.

7. The novel door interlocking structure of switchgear according to claim 6, characterized in that: The SF6 load switch assembly adopts an FLN36 type SF6 load switch assembly.

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