CN211654621U - Short circuit prevention cover of electric lock and short circuit prevention electric lock - Google Patents

Abstract

The utility model discloses a short circuit prevention cover of an electric lock and a short circuit prevention electric lock, relating to the technical field of electric coded locks; the short-circuit prevention cover is used for protecting two electrode posts at the rear end of a lock body of the electric lock; the cover body of the short-circuit prevention cover is surrounded to form an inner cavity for receiving each electrode pole; prevent short circuit cover still has assembly structure, prevent short circuit cover and pass through assembly structure detachably fixed mounting be in the rear end of lock body. The short-circuit prevention cover and the short-circuit prevention electric lock applying the short-circuit prevention cover can enclose and protect the electrode pole column at the rear end of the lock body, so that the electrode pole column is prevented from being exposed at the rear end of the lock body, and the electrode pole column is prevented from being short-circuited at the rear end of the lock body; the wrong short circuit of electric lock can be prevented effectively.

Description

Short circuit prevention cover of electric lock and short circuit prevention electric lock

Technical Field

The utility model relates to an electrical code lock technical field especially relates to an electric lock prevent short circuit cover and prevent short circuit electric lock.

Background

The electric coding lock is used as an important component of a microcomputer anti-misoperation locking system, is directly connected in series with a control loop of a switch, a disconnecting link and other primary power transformation equipment, and is an important element for realizing electric anti-misoperation.

The utility model discloses a chinese utility model patent that the bulletin number is CN208298725U discloses "an electrical coding lock that prevents the short circuit", and this utility model patent discloses a set up the tool to lock that shelters from stopper and relevant part additional in key hole department, sheltered from key hole, prevented that maloperation or external factor from causing two electrode post short circuits, harm equipment and personal safety, can also prevent in the key hole humidity, get into the dust.

However, the electric code lock in the scheme only prevents the key jack end from being short-circuited, namely the electric code lock is only prevented from being short-circuited at the front face; in the practical application in-process, most electrical code lock is installed on the panel in the screen cabinet, two electrode posts cartridge at the back of electrical code lock are on the screen cabinet panel and expose at the screen cabinet panel back, the back of screen cabinet can be opened when the maintainer overhauls the equipment in the screen cabinet or erection equipment, that is to say, after the back of screen cabinet was opened, two electrode posts can expose in the scope that the maintainer can touch, if the maintainer appears operating in-process and is misappropriate or two electrode posts of malicious short circuit, two electrode posts are short circuit under the unusual condition, not only can damage electrical equipment, the personal safety can be endangered to serious.

SUMMERY OF THE UTILITY MODEL

A first object of the present invention is to provide a short-circuit prevention cover for an electric lock, which solves the problem of the exposure of an electrode post at the rear end of a lock body of the electric lock, thereby avoiding the short-circuit of the electrode post at the rear end of the lock body; the utility model discloses a first purpose adopts following technical scheme to realize:

a short circuit prevention cover of an electric lock is used for protecting two electrode poles at the rear end of a lock body of the electric lock; the short-circuit prevention device is characterized in that an inner cavity for receiving each electrode pole is defined by a cover body of the short-circuit prevention cover; prevent short circuit cover still has assembly structure, prevent short circuit cover and pass through assembly structure detachably fixed mounting be in the rear end of lock body.

The short circuit prevention cover of the utility model is arranged at the rear end of the lock body, and can enclose and protect the electrode pole, thereby preventing the electrode pole from being exposed at the rear end of the lock body, and further preventing the electrode pole from being short-circuited at the rear end of the lock body; the wrong short circuit of electric lock can be prevented effectively.

Furthermore, the short circuit prevention cover is also provided with a wire outlet hole for leading out a lead connected with the electrode pole to the outside, and the wire outlet hole penetrates through the cover wall of the short circuit prevention cover.

Generally, the two electrode posts are electrically connected to the electrical equipment through conducting wires; it is therefore necessary to reserve a wiring hole (i.e., an outlet hole) for the wire to facilitate the connection of the electric lock to the electric equipment. If no wire outlet hole is arranged, the lead is pressed on the lock body by the short-circuit prevention cover, a gap may exist between the short-circuit prevention cover and the lock body, and therefore the conductor can enter the inner cavity deeply into the gap to realize the short circuit of the two electrode poles; or there may be a phenomenon in which the wire is pinched off. The arrangement of the wire outlet hole avoids the situation.

Specifically, the wire outlet hole is formed at an opening of the inner cavity, and the wire outlet hole is recessed in the edge of the cover wall on one side of the opening.

Preferably, the number of the outlet holes is two, and the size of each outlet hole is matched with the cross-sectional size of the lead.

In the preferred technical scheme, each wire outlet hole is provided with a wire to pass through, so that the wire is convenient to access, and the fit clearance between the wire and the wire outlet hole can be reduced as much as possible. The matching of the size of the wire outlet hole and the cross-sectional size of the wire means that the diameter of the wire outlet hole is just enough for one wire to pass through, and no overlarge gap exists between the wire outlet hole and the wire, so that the wire can have slight movement at the wire outlet hole.

Preferably, each of the outlet holes is staggered with the electrode pole.

In the preferred technical scheme, the staggering of the wire outlet hole and the electrode pole refers to that the wire outlet hole is not over against the electrode pole; this scheme can avoid penetrating the back direct connection to electrode utmost point post from the wire-outlet through iron wire or other short-circuit connection.

Preferably, two outlet holes are arranged oppositely.

In this preferred technical scheme, two the wire hole just sets up for after penetrating from a wire hole through iron wire or other short-circuit connection, iron wire or other short-circuit connection are worn out from another wire hole directly easily, can't touch electrode utmost point post, thereby can protect electrode utmost point post not by the short circuit. If the two wire outlet holes are not opposite to each other and are arranged in a staggered manner, an iron wire or other short-circuit wires are likely to be bent and deformed after being penetrated through one wire outlet hole and touching the cover wall, and then the wire or other short-circuit wires are likely to be connected to the electrode post; in the technical scheme, after the iron wire or the short wire penetrates through one wire outlet hole, the iron wire or the short wire can easily and directly penetrate through the other wire outlet hole, and the iron wire or the short wire is not bent in the inner cavity.

Preferably, the wall of the outlet hole is provided with a flange, and the flange is arranged to protrude from the inner side of the cover wall and/or the outer side of the cover wall.

According to the preferred technical scheme, due to the fact that the flange structure is arranged on the wall of the wire outlet hole, the function of visually shielding the electrode pole is achieved, and people who do not operate illegally cannot see the position of the electrode pole through the wire outlet hole, so that the electrode pole is difficult to connect to through other means.

Preferably, a baffle is further arranged between the wire outlet hole and the electrode pole, and a wire passing hole for wire routing is reserved on the baffle; the baffle plate divides the inner cavity into an electrode bin and an outlet hole bin, and the electrode bin is used for enclosing each electrode pole in the inner cavity.

This preferred technical scheme, baffle divide the storehouse setting with the inner chamber, and after iron wire or other shorting stub penetrated from a cross the line hole, penetrated the hole storehouse of being qualified for the next round of competitions in, because the setting of baffle has increased iron wire or other shorting stub follow the hole storehouse of being qualified for the next round of competitions gets into the degree of difficulty in electrode storehouse to increased the degree of difficulty that is connected to electrode utmost point post again, two electrode utmost point posts prevent the short circuit effect outstanding more.

More preferably, the position of the wire through hole is not arranged at the boundary of the baffle and the cover wall; thereby can avoid iron wire or other short-circuit wires to penetrate the back from a wire hole, bump and buckle behind the cover wall, just penetrate the electrode storehouse from crossing the wire hole.

Specifically, the wire passing hole is arranged in the middle of the edge of the cavity opening of the baffle plate close to the inner cavity, or the wire passing hole is a hole punched in the baffle plate.

The iron wire or other short-circuit wires penetrate through one wire outlet hole, so that the purpose of short-circuit of the two electrode poles is achieved through some means on the outside of the short-circuit prevention cover in a non-compliant mode; from this can see out, the utility model discloses a various preferred technical scheme, avoided two electrode utmost point posts effectively by unconventional ground short circuit, prevent that the mistake is effectual.

The second purpose of the utility model is to provide an electric lock for preventing short circuit; the utility model discloses a second purpose adopts following technical scheme to realize:

a short circuit prevention electric lock comprises a lock body and an electrode pole arranged on the lock body; the anti-short circuit cover is characterized by further comprising the anti-short circuit cover according to the technical scheme of the first purpose of the claim, the anti-short circuit cover is detachably and fixedly installed at the rear end of the lock body through the assembling structure, and the electrode poles are enclosed in the inner cavity.

The utility model discloses an prevent short circuit electric lock can protect the electrode utmost point post of lock body rear end not expose, and then has avoided carrying out the short circuit of electrode utmost point post at the rear end of lock body; the mistake short circuit of tool to lock can be prevented effectively.

Specifically, the assembly structure is a structure in which the short-circuit prevention cover is in threaded connection with the lock body;

or the assembly structure is a structure in which the short-circuit prevention cover is connected with the lock body in a buckling mode.

It should be appreciated that the releasable attachment of the anti-short cover to the lock body is not limited to the manner in which it is used; adopt other connected mode to realize preventing short circuit cover and lock body's dismantlement and be connected all should the utility model discloses the scope that claims.

Furthermore, the front end of the lock body is provided with a dustproof cover for opening and closing an unlocking port arranged at the front end of the lock body.

In this further technical scheme, the setting of shield makes the mistake short circuit that also can't implement two electrode utmost points posts at the front end of lock body. Thereby let the utility model discloses a prevent mistake performance of short circuit electric lock more reliable.

Drawings

Fig. 1 is a schematic structural view illustrating an electrical lock for preventing short circuit according to an embodiment of the present invention installed on a panel in a cubicle;

fig. 2 is a partial explosion diagram of an electric lock for preventing short circuit according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a short-circuit prevention cover of an electric lock according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of the short-circuit prevention electric lock installed on the panel in the cubicle according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of the short-circuit prevention cover of the short-circuit prevention electric lock according to the second embodiment of the present invention.

Detailed Description

In order to more clearly understand the technical solution of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

In this embodiment, unless otherwise stated, the terms of orientation such as "upper, lower, vertical, axial, front, and back" are generally used with respect to the directions shown in the drawings, but the terms of orientation are not intended to limit the present embodiment.

Example one

With reference to fig. 1, 2 and 4, the present embodiment provides a short-circuit prevention electric lock, which is installed on a panel 40 in a cabinet; in this embodiment, an end of the short-circuit prevention electric lock facing the outside of the device (an end having the lock hole) is defined as a front end, and an end of the short-circuit prevention electric lock facing the inside of the electric device is defined as a rear end.

The short-circuit prevention electric lock comprises a lock body 20, a dust cover 30 and a short-circuit prevention cover 10; the lock body 20 is provided with two electrode posts 21, the front end of the lock body 20 is provided with an unlocking port, the unlocking port is provided with an electrode terminal matched with an unlocking key, the electrode terminal is correspondingly and electrically connected with the electrode posts 21 or integrally formed, and the electrode posts 21 are electrically connected with electrical equipment arranged on a screen cabinet at the rear end of the lock body 20; the lock body 20 is installed on a panel 40 in the screen cabinet, and the front end and the rear end of the lock body 20 are respectively located at two sides of a door plate of the panel 40.

The short-circuit prevention cover 10 is detachably and fixedly arranged at the rear end of the lock body 20; with reference to fig. 3, the anti-short circuit shield 10 has an inner cavity 12 for receiving the electrode post 21; after the short-circuit prevention cover 10 is installed with the lock body 20, the electrode post 21 is enclosed in the inner cavity 12, so that the electrode post 21 is surrounded by the short-circuit prevention cover 10 to prevent the electrode post 21 from being exposed.

In this embodiment, the short-circuit prevention cover 10 is a rectangular structure, the short-circuit prevention cover 10 is fixedly mounted on the lock body 20 through a fastener, and the two electrode posts 21 are respectively located at two ends of the short-circuit prevention cover 10 in the length direction; specifically, in the present embodiment, the fastening member is a screw 11, the rear end of the lock body 20 is provided with a screw mounting post 23 protruding and cooperating with the screw 11, the screw mounting post 23 is located at a middle position of the rear end of the lock body 20, and the short circuit prevention cover 10 is mounted at the rear end of the lock body 20 through the threaded connection between the screw 11 and the screw mounting post 23.

In other embodiments, the detachable connection of the short circuit prevention cover 10 and the lock body 20 can also be a snap connection or a threaded connection with a plurality of screws; when a plurality of screws are used for threaded connection, the threaded connection positions are also around the joint of the short-circuit prevention cover 10 and the lock body 20. It should be understood that other connection methods for detachably connecting the short circuit prevention cover 10 to the lock body 20 are within the scope of the present invention.

It should be noted that the short-circuit prevention cover 10 may also be in other structures, for example, a split structure is also possible, that is, the short-circuit prevention cover 10 includes two parts to protect the two electrode posts 21 respectively.

The short circuit prevention cover 10 is also provided with a wire outlet hole 13; generally, the two electrode posts 21 are electrically connected to the electrical equipment through the conducting wires 22; it is therefore necessary to reserve the routing holes (i.e., the outlet holes 13) of the wires 22 to facilitate the connection of the electric lock to the electrical equipment. The outlet hole 13 extends through the wall of the short-circuit prevention cover 10, so that the lead 22 can extend out of the electric lock from the inner cavity 12 through the outlet hole 13. In which the wire 22 is insulated and has no exposed conductor on its surface so that the outer surface does not short.

If the outlet hole 13 is not provided, but after the conducting wire 22 is connected with the electrode post 21, the short-circuit prevention cover 10 is forcibly installed, and the conducting wire 22 is pressed between the short-circuit prevention cover 10 and the lock body 20, then because the conducting wire 22 itself has a certain thickness, if the installation is forcibly performed, two situations may be caused:

a remarkable gap is generated at the joint of the short-circuit prevention cover 10 and the lock body 20, so that an external conductor also has a space extending into the short-circuit prevention cover 10 to short-circuit the two electrode posts 21;

the short-circuit prevention cover 10 has no gap at the joint with the lock body 20, which may cause the lead wire 22 to be pinched off, thereby preventing the electric lock from being used normally, and causing serious electric leakage to occur, thereby endangering safety.

In either case, the disadvantages are present, and the provision of the outlet hole 13 avoids the problems described above.

In this embodiment, the wire outlet 13 is disposed at the opening of the inner cavity 12 and is recessed into the edge of the cover wall on one side of the opening, so that the lead 22 can pass through the wire outlet to the outside of the electric lock after the anti-short-circuit cover 10 and the lock body 20 are assembled. In other implementations, the outlet hole 13 may be located anywhere on the short circuit prevention cover 10, depending on convenience of use.

Preferably, there are two outlet holes 13, and one outlet hole 13 is used for receiving one wire 22, so that the arrangement not only facilitates the receiving of the wire 22, but also reduces the fit clearance between the wire 22 and the outlet hole 13 as much as possible. If two wires 22 are connected from one wire outlet hole 13, the size of the wire outlet hole 13 needs to be enlarged, and most of the outer surfaces of the wires 22 are arc-shaped, and the two wires 22 with arc-shaped outer surfaces are superposed and then matched with the wire outlet hole 13 with large size, a large gap is inevitably generated, and external conductors can extend into the inner cavity 12 of the short-circuit prevention cover 10 through the gap to short-circuit the electric lock, and the difficulty in installation is also increased.

Preferably, each outlet hole 13 is staggered with the electrode post 21; the staggering of the wire outlet hole and the electrode pole column means that the wire outlet hole 13 is not opposite to the electrode pole column 21; can avoid penetrating the back through iron wire or other short-circuit wires from the wire-outlet and be directly connected to the electrode utmost point post.

More preferably, two outlet holes 13 are arranged oppositely; the two outlet holes 13 of this embodiment are divided into two opposite long sides located at the cavity, and the outlet holes 13 are located in the middle of the long sides. After penetrating from a wire outlet 13 through iron wire or other short-circuit wires, be convenient for directly wear out from another wire outlet 13, can't touch electrode utmost point post 21 to can protect electrode utmost point post 21 not by the short circuit. If the two outlet holes 13 are not aligned to each other and are staggered, then a possible iron wire or other short-circuit wire penetrates through one outlet hole 13 and then is bent and deformed after touching the wall of the housing so as to be connected to the electrode post 21; in the technical scheme, when the iron wire or the short wire penetrates through one wire outlet hole 13 and reaches the position of the shield wall, the iron wire or the short wire directly penetrates through the other wire outlet hole 13, and the iron wire or the short wire has no chance of being bent in the inner cavity. The dust cover 30 is located at an unlocking port at the front end of the lock body 20, the dust cover 30 is movably connected with the lock body 20 and used for opening or closing the unlocking port, when unlocking is needed, the dust cover 30 is opened to expose the unlocking port, and an unlocking key is used for unlocking; when not in use, the dust cover 30 is closed to cover the unlock opening; the dust cover 30 not only plays a role in dust prevention and water prevention, but also can prevent the two electrode posts 21 from being short-circuited to harm equipment and personal safety due to misoperation or external factors (such as water inflow).

Example two

With reference to the foregoing embodiments and fig. 5, the difference between the present embodiment and the first embodiment is that there is a difference in the structure of the short-circuit prevention cover 10.

In this embodiment, the wall of the outlet hole 13 is provided with a flange 14. A flange 14 is provided projecting from the outside of the cover wall. Due to the arrangement of the protruding flange 14 on the wall of the outlet hole 12, the electrode post is visually shielded, and an operator cannot see the position of the electrode post 21 through the outlet hole, so that the operator cannot connect the electrode post to the electrode post 21 by other means. Of course, in other embodiments, the flange 14 of the wall of the outlet hole 13 may also be disposed to protrude from the inner side of the cover wall; or the flange 14 of the wall of the outlet hole 13 is arranged to protrude from the inner side of the cover wall and protrude from the outer side of the cover wall.

More preferably, a baffle 15 is further arranged between the outlet hole 13 and the electrode post 21, and a wire passing hole 16 for a wire 22 to run is reserved on the baffle 15; the baffle 15 divides the inner cavity into an electrode bin 17 for accommodating an electrode post 21 and a wire outlet bin 18 for accommodating a wire outlet 13.

According to the preferred technical scheme, the baffle 15 divides the inner cavity 12 into bins, so that the outlet hole 13 is separated from the electrode pole 21; after iron wire or other shorting stub penetrated from a wire outlet 13, penetrated in the wire outlet storehouse 18, because baffle 15's setting, increased iron wire or other shorting stub follow wire outlet storehouse 18 gets into electrode storehouse 17's the degree of difficulty to increased the degree of difficulty that is connected to the electrode utmost point post again, two electrode utmost point posts prevent the short circuit effect outstanding more.

More preferably, the position of the wire through hole 16 is not arranged at the junction of the baffle and the cover wall; thereby can avoid iron wire or other short-circuit wires to pass through the back from a line hole, bump and take place buckling behind the cover wall, just pass through the electrode storehouse from crossing the line hole.

The iron wire or other short-circuit wires penetrate through one wire outlet hole, so that the two electrode poles are short-circuited outside the short-circuit prevention cover through some means; from this can see out, the utility model discloses a various preferred technical scheme, avoided two electrode utmost point posts limitedly by unconventional ground short circuit, prevent that the mistake is effectual.

The short-circuit prevention electric lock of the utility model is additionally provided with the short-circuit prevention cover 10, so that the electrode poles 21 at the rear end of the lock body 20 are not exposed, and the two electrode poles 21 are enclosed in the inner cavity 12 of the short-circuit prevention cover 10, thus the short-circuit prevention electric lock can not be implemented even if a lead 22 or other conductors are taken to short-circuit the two electrode poles 21 of the lock body 20; the utility model discloses a prevent shield 30 of short circuit electric lock at the front end setting of lock body 20 for the mistake short circuit of two electrode utmost point posts 21 also can't be implemented at the front end of lock body 20. Therefore, the utility model discloses a prevent short circuit electric lock no matter be in the front end or the mistake short circuit that can both two effectual prevention electrode utmost point posts 21 in the rear end, prevent that the mistake performance is good.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like without creativity within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A short circuit prevention cover of an electric lock is used for protecting two electrode poles at the rear end of a lock body of the electric lock; the short-circuit prevention device is characterized in that an inner cavity for receiving each electrode pole is defined by a cover body of the short-circuit prevention cover; prevent short circuit cover still has assembly structure, prevent short circuit cover and pass through assembly structure detachably fixed mounting be in the rear end of lock body.

2. The short circuit prevention cover according to claim 1, further comprising an outlet hole for leading out a lead connected to the electrode post to the outside, wherein the outlet hole penetrates through the cover wall of the short circuit prevention cover.

3. The short circuit prevention shroud of claim 2 wherein the outlet aperture opens at an opening of the inner chamber, the outlet aperture being recessed from an edge of the shroud wall at the opening.

4. The short prevention cover of claim 2, wherein there are two outlet holes, and each outlet hole has a size matching the cross-sectional size of the wire.

5. The short circuit prevention cover of claim 4, wherein each of the outlet holes is staggered with respect to the electrode posts.

6. The short protection cap of claim 5 wherein two of said wire holes are diametrically opposed.

7. The short circuit prevention cover according to claim 6, wherein the wall of the outlet hole is provided with a flange, and the flange is arranged to protrude from the inner side of the cover wall and/or the outer side of the cover wall.

8. The short circuit prevention cover according to any one of claims 2 to 7, wherein a baffle is further arranged between the wire outlet hole and the electrode pole, and a wire passing hole for the wire routing is reserved on the baffle; the baffle plate divides the inner cavity into an electrode bin and an outlet hole bin, and the electrode bin is used for enclosing each electrode pole in the inner cavity.

9. A short circuit prevention electric lock comprises a lock body and an electrode pole arranged on the lock body; the lock is characterized by further comprising the short-circuit prevention cover according to any one of claims 1 to 8, wherein the assembly structure is a structure in which the short-circuit prevention cover is in threaded connection with the lock body;

or the assembly structure is a structure in which the short-circuit prevention cover is connected with the lock body in a buckling mode.

10. The electrical short circuit prevention lock according to claim 9, wherein a dust cap for opening and closing an unlocking port provided at the front end of the lock body is installed at the front end of the lock body.

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