CN109763704B

CN109763704B - A switch lock suitable for ring main unit

Info

Publication number: CN109763704B
Application number: CN201910025763.4A
Authority: CN
Inventors: 陈羽; 王敬华; 张新慧
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2019-01-11
Filing date: 2019-01-11
Publication date: 2021-05-11
Anticipated expiration: 2039-01-11
Also published as: CN109763704A

Abstract

The invention discloses a switch lock suitable for a ring network cabinet. The switch lock includes a first module and a second module, which cooperate with each other to form a lock; the first module includes a fixing member and is arranged on a A sliding member inside the fixing member and capable of sliding toward the second module; the second module has a socket facing the sliding member, and the sliding member can slide and be inserted into the socket , forming a lock. The present invention can realize unlocking only by directly inserting the unlocking piece into the slot, which is convenient and quick to use, does not require redundant operations and redundant attempts, and can also ensure safety, and the switch lock cannot be opened without a suitable unlocking piece.

Description

Switch lock suitable for looped netowrk cabinet

Technical Field

The invention relates to the technical field of distribution automation, in particular to a switch lock suitable for a ring main unit.

Background

The distribution network automation is a system which utilizes the technical means of computer technology, automatic control technology, electronic technology, communication technology, new high-performance distribution equipment and the like to carry out offline and online intelligent monitoring management on a distribution network so as to enable the distribution network to be always in a safe, reliable, high-quality, economic and efficient optimal operation state. In a distribution network automation system, various remote detection and control units installed on a medium and low voltage distribution network are distribution automation terminals, including remote terminals such as a DTU, a TTU, an FTU and the like. The DTU is generally installed at a conventional ring main unit, an outdoor small-sized switching station, a box-type substation and the like, and is used for collecting and calculating position signals, voltage, current, active power, reactive power, power factors, electric energy and other data of the switch equipment, performing switching-on and switching-off operation on the switch, and realizing fault identification and isolation of a feeder switch and recovery power supply of a non-fault section.

Because the looped netowrk cabinet is inside to be furnished with the circuit, for guaranteeing distribution system's safety and stability and the protection of personal safety, the external safety lock that can set up of cabinet of looped netowrk cabinet for prevent that non-maintainer from opening at will. However, the door lock of the general ring main unit is cumbersome to operate, and needs to be rotated after the key is inserted, and the condition that the ring main unit cannot be opened due to insufficient number of rotation turns or the ring main unit cannot be opened due to more than half of rotation turns often exists. Meanwhile, some keys of locks in the market can only open the lock when the keys are rotated to be horizontal, and some keys can only open the lock when the keys are rotated to be vertical, so that a user needs to perform proper attempts.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The invention has been made in view of the above and/or the problems existing in the safety lock of the existing ring main unit.

Therefore, one of the objects of the present invention is to provide a switch lock suitable for ring main units, which can be unlocked by directly inserting an unlocking member.

In order to solve the technical problems, the invention provides the following technical scheme: a switch lock suitable for a ring main unit comprises a first module and a second module which are matched with each other to form locking; the first module comprises a fixed part and a sliding part which is arranged in the fixed part and can slide towards the second module; the second module is provided with a socket opposite to the sliding piece, and the sliding piece can be slidably inserted into the socket to form locking.

As a preferable mode of the switch lock of the present invention, wherein: the fixed piece and the sliding piece are respectively provided with a corresponding first channel and a corresponding second channel, and the sliding piece can enable the first channel and the second channel to form mutually opposite and communicated sliding channels through self sliding; both ends of the sliding channel are plugged.

As a preferable mode of the switch lock of the present invention, wherein: a first sliding block is arranged in the first channel, a second sliding block is arranged in the second channel, and one end of the second sliding block is fixed at the inner end head of the second channel through an elastic piece; when the first channel and the second channel are opposite to each other to form the sliding channel, the second sliding block can slide in the sliding channel under the extrusion of the elastic piece, the first sliding block is abutted against the other end of the first channel, and the contact surface of the first sliding block and the second sliding block is positioned in the range of the first channel.

As a preferable mode of the switch lock of the present invention, wherein: the sliding part is connected to an end face, far away from the second module, inside the fixed part through a stretching part, and the sliding part has a tendency to be far away from the second module under the pulling of the stretching part.

As a preferable mode of the switch lock of the present invention, wherein: the sliding piece is also provided with an adjusting piece, and the adjusting piece penetrates out of the fixing piece towards the direction far away from the second module.

As a preferable mode of the switch lock of the present invention, wherein: the two sides of the sliding part are provided with sliding strips, the inner side wall of the fixing part is provided with a sliding groove corresponding to the sliding direction of the sliding part, and the sliding strips are embedded into the sliding groove and can slide linearly in the range of the sliding groove.

As a preferable mode of the switch lock of the present invention, wherein: the switch lock also comprises an unlocking part; the fixed piece is also provided with a slot communicated with the first channel, and the width of the slot is smaller than that of the first channel, so that the first sliding block cannot be separated from the slot; the unlocking piece can be inserted into the slot and pushes the first sliding block, so that when the contact surface of the first sliding block and the second sliding block moves to the contact surface of the sliding piece and the fixed piece, the sliding piece can be pulled by the stretching piece to slide towards the direction far away from the second module, and unlocking is achieved.

As a preferable mode of the switch lock of the present invention, wherein: the first channel and the second channel are arranged in parallel and correspond to each other uniformly; a first sliding block is arranged in each first channel, and a second sliding block is also arranged in each second channel; the total length of each group of the first sliding blocks and the second sliding blocks is equal, but the lengths of the first sliding blocks are different and are all smaller than the length of the first channel; the unlocking piece is also provided with convex teeth which are complementary with the first sliding blocks in length in different lengths, so that when the unlocking piece is inserted into the slot and pushes the first sliding blocks, the contact surfaces of the first sliding blocks and the second sliding blocks of each group can be pushed to the contact surfaces of the sliding pieces and the fixing pieces.

The invention has the beneficial effects that: this send out only need can realize the unblock through the unblock piece disembowel in the slot, and convenient to use is swift, need not unnecessary operation and unnecessary attempt, can also guarantee the security simultaneously, and the unblock piece that does not have the adaptation then can not open the switch lock.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a schematic view of the installation position of the switch lock according to the present invention.

Fig. 2 is an exploded view of the switch lock of the present invention.

Fig. 3 is a diagram illustrating an internal structure of a first module according to the present invention.

Fig. 4(a) is an internal structural view and a longitudinal sectional view of the switch lock of the present invention in a locked state; 4(b) is an internal structure view and a transverse sectional view of the switch lock in the locked state.

Fig. 5(a) is an internal structural view and a longitudinal sectional view of the switch lock card according to the present invention; 5(b) is the internal structure diagram and the transverse section diagram of the switch lock plug-in card of the invention.

Fig. 6(a) is an internal structural view and a longitudinal sectional view of the switch lock of the present invention in an unlocked state; and 6(b) is an internal structure diagram and a transverse sectional diagram of the switch lock in an unlocked state.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Referring to fig. 1 to 6, a first embodiment of the present invention provides a switch lock 100 suitable for a ring main unit, where the switch lock 100 may be used for a side hung door and can lock the side hung door when the side hung door is closed. The switch lock 100 can be unlocked only by directly inserting the unlocking piece 103, unnecessary steps such as insertion and rotation in a conventional unlocking mode are not needed, and the effects of safety protection and theft prevention can be synchronously realized.

The switch lock 100 includes a first module 101 and a second module 102 that cooperate with each other. The first module 101 is fixed on the edge of the rotatable side of the vertical hinged door, and the second module 102 is fixed on the corresponding edge of the door frame, after the vertical hinged door is closed, the second module 102 and the first module 101 can be mutually corresponding and matched, and locking is formed through the switch lock 100.

Specifically, the first module 101 includes a fixed member 101a and a sliding member 101b disposed inside the fixed member 101a and capable of sliding toward the second module 102. The fixed part 101a is a hollow structure with a sliding space inside, and the sliding part 101b is a sliding block which can slide linearly in the sliding space of the fixed part 101 a. The second module 102 has a slot 102a opposite the slide 101b, and the slide 101b can slide and be inserted into the slot 102a to form a lock.

The fixed member 101a and the sliding member 101b have corresponding first and second channels 101a-1 and 101b-1, respectively. The first channel 101a-1 and the second channel 101b-1 have the same cross-sectional size and shape, and are both channels with one open end and the other closed end, and the open ends of the two channels can be arranged oppositely. During the sliding process of the sliding part 101b in the "sliding space", the first channel 101a-1 and the second channel 101b-1 can form (at a certain moment) a sliding channel H which is opposite to each other and is communicated with each other, and obviously, both ends of the sliding channel H are sealed.

The first channel 101a-1 is internally provided with a first slide block 101a-2, and the first slide block 101a-2 can slide in the first channel 101 a-1; the second channel 101b-1 is internally provided with a second slide block 101b-2, and the second slide block 101b-2 can slide in the second channel 101 b-1; the first slider 101a-2 and the second slider 101b-2 are able to slide together in the slide channel H when the first channel 101a-1 and the second channel 101b-1 are aligned with each other.

The second slider 101b-2 is fixed to the inner end of the second channel 101b-1 by the elastic member 101b-3 (the elastic member 101b-3 may be a compression spring), so that, when the first channel 101a-1 and the second channel 101b-1 face each other to form the sliding channel H, the second slider 101b-2 can slide in the sliding channel H under the compression of the elastic member 101b-3 and press the first slider 101a-2 against the other end of the first channel 101a-1, and the contact surface of the first slider 101a-2 and the second slider 101b-2 is located in the range of the first channel 101 a-1. In this state, the sliding member 101b cannot slide relative to the fixed member 101a because the first slider 101a-2 is completely located in the first passage 101a-1 and the second slider 101b-2 partially protrudes into the first passage 101a-1 to form an intervening barrier. The switch lock 100 in this state is set to the locked state. In the locked state, the outer end of the sliding member 101b can be inserted into the insertion opening 102a of the second module 102, and the sliding member 101b cannot slide, thereby forming a lock.

The two ends of the sliding part 101b are respectively a sliding part inner end 101b-1 and a sliding part outer end, the sliding part outer end 101b-2 is one end capable of being inserted into the insertion opening 102a, and the sliding part inner end 101b-1 is the other end opposite to the sliding part outer end. The inner end 101b-1 of the sliding member is further connected to an end surface of the inner part of the fixed member 101a far from the second module 102 through a tension member 101c (the tension member 101c may be a tension spring), and the sliding member 101b has a tendency to move away from the second module 102 under the pulling of the tension member 101 c.

The sliding member 101b further has an adjusting member 101d, and the adjusting member 101d may be a rod-shaped structure, one end of which is fixed to the inner end 101b-1 of the sliding member, and the other end of which extends out of the fixing member 101a in a direction away from the second module 102 to the outside of the fixing member 101 a. The fixing member 101a has a through hole to be fitted to the adjusting member 101 d. By pushing the outer end of the adjuster 101d, the slider 101b can be pushed to slide in the direction of the second module 102.

Preferably, the sliding member 101b has sliding strips 101b-4 on both sides, the fixed member 101a has sliding grooves 101a-3 on the inner side walls corresponding to the sliding direction of the sliding member 101b, and the sliding strips 101b-4 are embedded in the sliding grooves 101a-3 and can slide linearly within the sliding grooves 101a-3 (i.e., the sliding grooves 101a-3 define the sliding range of the sliding member 101b in the fixed member 101 a).

In the present invention, the switch lock 100 further includes an unlocking member 103, and the unlocking member 103 has a key function. Meanwhile, the fixed part 101a is also provided with a slot 101a-4 matched with the fixed part, and the slot 101a-4 is communicated into the first channel 101a-1, so that the unlocking part 103 can be inserted into the slot 101a-4 and pushes the first slide block 101a-2 in the first channel 101a-1 to move. It should be noted that: the width of the slot 101a-4 is smaller than the first channel 101a-1 so that the first slider 101a-2 cannot be disengaged from the slot 101 a-4.

Therefore, when the switch lock 100 is in the locked state (i.e., the first channel 101a-1 and the second channel 101b-1 face each other to form the sliding channel H, and the second slider 101b-2 partially protrudes into the first channel 101a-1), the first slider 101a-2 is pressed against the outer end of the sliding channel H. The unlocking member 103 can be inserted into the insertion groove 101a-4 and push the first slider 101a-2 while pushing the second slider 101b-2 to be gradually separated from the first passage 101 a-1. When the contact surface of the first slider 101a-2 and the second slider 101b-2 moves to the contact surface of the sliding part 101b and the fixed part 101a, the first channel 101a-1 no longer forms an obstruction to the second slider 101b-2, so that the sliding part 101b can be pulled by the pulling part 101c to slide in a direction away from the second module 102, and the outer end of the sliding part is separated from the socket 102a, so as to realize unlocking.

In order to realize safety protection, the switch lock 100 can be opened only through the specific unlocking piece 103, and the technical scheme is as follows:

the first channel 101a-1 and the second channel 101b-1 are arranged in parallel in a plurality, and correspond to each other. Therefore, a first slider 101a-2 is disposed in each first channel 101a-1, a second slider 101b-2 is disposed in each second channel 101b-1, and each second slider 101b-2 is also fixed to the inner end of the corresponding second channel 101b-1 by a respective elastic member 101 b-3.

When the switch lock 100 is in the locked state, each first slide block 101a-2 and the corresponding second slide block 101b-2 form a group and are located in a sliding channel H together. It should be noted that the total length of each set of the first slider 101a-2 and the second slider 101b-2 is equal, but the length of each set of the first slider 101a-2 is different and smaller than the length of the first channel 101a-1, so that in the locked state, the contact surfaces of each set of the first slider 101a-2 and the second slider 101b-2 are located within the interval corresponding to the first channel 101 a-1.

Correspondingly, the unlocking member 103 is also provided with a convex tooth 103a which is complementary in length to the different lengths of the respective first sliders 101 a-2. Here, "complementary in length" means: the sum of the lengths of each convex tooth 103a and the corresponding first slider 101a-2 is the same, so that when the unlocking piece 103 is inserted into the slot 101a-4 and pushes each first slider 101a-2, the contact surfaces of each group of first slider 101a-2 and second slider 101b-2 can be pushed to the contact surface position of the sliding piece 101b and the fixed piece 101a, and finally, because the sliding piece 101b is pulled by the pulling piece 101c without the blocking effect of each second slider 101b-2, the sliding piece slides in the direction away from the second module 102, and the outer end of the sliding piece is separated from the socket 102a, so as to realize unlocking.

Preferably, both ends of the unlocking member 103 have limiting portions 103b, and when the unlocking member 103 is inserted into the slot 101a-4 to achieve unlocking, the limiting portions 103b are placed on and contact with the outer side wall of the fixing member 101 a. Therefore, when unlocking is needed, the unlocking piece 103 only needs to be inserted into the slot 101a-4 directly until the insertion can not be continued, and manual and deliberate regulation is not needed.

Since, among the above, only: the unlocking can be realized only when the first sliding blocks 101a-2 with different lengths are simultaneously pushed to the 'the contact surfaces of the first sliding blocks 101a-2 and the second sliding blocks 101b-2 are all positioned at the contact surface position of the sliding part 101b and the fixed part 101 a', and the unlocking purpose is difficult to achieve because other strangers do not know the internal structure of the switch lock 100 at all and do not know the length of the first sliding blocks 101 a-2.

In summary, when unlocking is required, the unlocking part 103 is only required to be held and the unlocking part 103 is directly inserted into the slot 101a-4, so that unlocking can be achieved conveniently and quickly. Meanwhile, if the locking process is to be implemented, the adjusting member 101d is pushed inward from the outside until the first channel 101a-1 and the second channel 101b-1 face each other to form the sliding channel H, at this time, each second sliding block 101b-2 is pressed into the first channel 101a-1 by the corresponding elastic member 101b-3 again, so as to form blocking and locking, and the outer end 101b-2 of the sliding member is inserted into the insertion opening 102 a. Preferably, when the sliding bar 101b-4 slides to the end of the sliding groove 101a-3 close to the second module 102, the outer end of the sliding part is just inserted into the insertion opening 102a, so that the sliding part is pushed to be incapable of sliding continuously in the process of locking by pushing the adjusting part 101d, and manual and deliberate adjustment is not needed.

The switch lock 100 of the invention can be used for switch cabinets, ring main units or other equipment and structures adopting single-leaf vertical hinged doors. When the vertical edge of one side of the vertical hinged door is hinged (through the hinge) with one side of the ring main unit door frame when the vertical hinged door is applied to the single-leaf vertical hinged door of the ring main unit; a first module 101 is fixed on the other vertical edge (rotatable side) of the vertical hinged door, and is connected and locked with a second module 102 fixed on the edge of the corresponding door frame through the first module 101.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a switch lock suitable for looped netowrk cabinet which characterized in that: the switch lock (100) comprises a first module (101) and a second module (102), which are matched with each other and can form locking;

the first module (101) comprises a fixed part (101a) and a sliding part (101b) which is arranged in the fixed part (101a) and can slide towards the second module (102);

the second module (102) is provided with a socket (102a) opposite to the sliding piece (101b), and the sliding piece (101b) can be slidably inserted into the socket (102a) to form locking;

the fixed piece (101a) and the sliding piece (101b) are respectively provided with a corresponding first channel (101a-1) and a corresponding second channel (101b-1), and the sliding piece (101b) can enable the first channel (101a-1) and the second channel (101b-1) to form a sliding channel (H) which is opposite to each other and communicated with each other through self sliding; both ends of the sliding channel (H) are plugged;

a first sliding block (101a-2) is arranged in the first channel (101a-1), a second sliding block (101b-2) is arranged in the second channel (101b-1), and one end of the second sliding block (101b-2) is fixed at the inner end of the second channel (101b-1) through an elastic piece (101 b-3); when the first channel (101a-1) and the second channel (101b-1) are opposite to each other to form the sliding channel (H), the second slide block (101b-2) can slide in the sliding channel (H) under the extrusion of the elastic piece (101b-3) and press the first slide block (101a-2) against the other end of the first channel (101a-1), and the contact surface of the first slide block (101a-2) and the second slide block (101b-2) is positioned in the interval range of the first channel (101 a-1);

the sliding part (101b) is connected to an end face, away from the second module (102), inside the fixed part (101a) through a stretching part (101c), and the sliding part (101b) has a tendency to move away from the second module (102) under the pulling of the stretching part (101 c);

the sliding part (101b) is also provided with an adjusting part (101d), and the adjusting part (101d) penetrates out of the fixed part (101a) towards the direction away from the second module (102);

the switch lock (100) further comprises an unlocking piece (103); the fixed piece (101a) is also provided with a slot (101a-4) communicated with the first channel (101a-1), and the width of the slot (101a-4) is smaller than that of the first channel (101a-1), so that the first sliding block (101a-2) cannot be separated from the slot (101 a-4); the unlocking piece (103) can be inserted into the inserting groove (101a-4) and pushes the first sliding block (101a-2), so that when the contact surface of the first sliding block (101a-2) and the second sliding block (101b-2) moves to the contact surface of the sliding piece (101b) and the fixed piece (101a), the sliding piece (101b) can be pulled by the stretching piece (101c) to slide in the direction away from the second module (102), and unlocking is realized;

the first channel (101a-1) and the second channel (101b-1) are arranged in parallel and correspond to each other; a first sliding block (101a-2) is arranged in each first channel (101a-1), and a second sliding block (101b-2) is also arranged in each second channel (101 b-1); the total length of each group of the first sliding blocks (101a-2) and the second sliding blocks (101b-2) is equal, but the lengths of the first sliding blocks (101a-2) are different and are smaller than the length of the first channel (101 a-1); the unlocking piece (103) is also provided with convex teeth (103a) which are complementary to the lengths of the first sliding blocks (101a-2) in different lengths, so that when the unlocking piece (103) is inserted into the slot (101a-4) and pushes the first sliding blocks (101a-2), the contact surface of each group of the first sliding blocks (101a-2) and the second sliding blocks (101b-2) can be pushed to the contact surface of the sliding piece (101b) and the fixed piece (101 a);

when unlocking is needed, the unlocking piece (103) is only needed to be held and the unlocking piece (103) is directly inserted into the slot (101a-4), so that unlocking can be achieved, meanwhile, if the locking process is to be achieved, the adjusting piece (101d) is only needed to be pushed inwards from the outside until the first channel (101a-1) and the second channel (101b-1) are opposite to each other to form the sliding channel (H), at the moment, each second sliding block (101b-2) is extruded into the first channel (101a-1) by the corresponding elastic piece (101b-3) again to form blocking and locking, the outer end of the sliding piece is inserted into the socket (102a), and in the locking process through pushing the adjusting piece (101d), only the sliding piece needs to be pushed to be incapable of sliding continuously, and manual and deliberate regulation is not needed.

2. The switch lock suitable for the ring main unit as claimed in claim 1, wherein: the two sides of the sliding part (101b) are provided with sliding strips (101b-4), the inner side wall of the fixed part (101a) is provided with sliding grooves (101a-3) corresponding to the sliding direction of the sliding part (101b), and the sliding strips (101b-4) are embedded in the sliding grooves (101a-3) and can slide linearly in the range of the sliding grooves (101 a-3).