CN107575096A - A kind of security tool box for electric power overhaul - Google Patents

Abstract

The invention relates to a safety tool box for electric power maintenance; it includes a box body and a first drawer, a second drawer, and a third drawer arranged on the box body, and each drawer is correspondingly provided with a first rotary tongue lock and a second rotary tongue lock. lock and the third cam lock; the bottom of the box is provided with casters, and the back of the box is provided with an upward pull-type handle; when the present invention is used, the handle can be pulled out, and the casters at the bottom of the box can be used to pull and walk , as you use it, it is easy to use; the invention needs to master the correct unlocking sequence to open the drawers one by one, and the opening method of the first drawer is equipped with confusing settings, which is beyond the thinking habits of thieves and is very safe and reliable; The invention can only need one key, but the set unlocking routine makes the thief think that three keys are needed, which greatly enhances the safety of the tool box. The tool box has simple structure, simple control, low cost, and good anti-theft effect.

Description

A safety toolbox for electric power maintenance

technical field

The invention relates to the field of power grid dispatching toolboxes, in particular to a safety toolbox for electric power maintenance.

Background technique

In daily electrical maintenance, a variety of tools are often used, such as laptops, serial debugging cables, network cables, network cable pliers, crystal heads, electric soldering irons, solder materials, insulating tape, label paper, marker pens, various screws, Flat-blade screwdrivers, cross-shaped screwdrivers, cable ties, needle-nose pliers, diagonal pliers, wrenches, optical power meters, line-finding instruments, and power strips; these tools are numerous and varied, and traditional tool bags are difficult to carry all at once. Moreover, these tools are mostly metal parts, which are very heavy together, and it is not convenient to carry them even if they are put into a tool bag; in addition, the situation of the personnel on the installation and commissioning site is complicated. When the installation and commissioning personnel have something to do, they need to leave for a while, and it is inconvenient to carry many tools with them. , Usually the tools are left on site. At this time, tools are often stolen. The loss of tools not only causes waste of cost, but also seriously affects the progress of installation and commissioning.

Contents of the invention

Aiming at the above problems, the present invention provides a safety tool box for electric power maintenance, which is not only convenient to carry, but also cleverly solves the problem of anti-theft.

The present invention provides a safety tool box for electric maintenance, comprising a box body and a first drawer, a second drawer, and a third drawer arranged on the box body, and each drawer is correspondingly provided with a first rotary cam lock, a second rotary The cam lock and the third cam lock are characterized in that the first drawer is provided with a first conductor, and when the first cam lock is in an open state, the first cam lock tongue is in contact with the first conductor; the second cam lock is in contact with the first conductor; The second drawer is provided with a second conductor, and when the second rotary cam lock is in an open state, the second rotary cam lock bolt is in contact with the second conductor; the third drawer is provided with a third conductor, and the third rotary cam lock is in an open state When the lock tongue of the third cam lock is in contact with the third conductor; the box is provided with a second electromagnet and a third electromagnet; when the second cam lock is in the locked state, the second cam lock lock The tongue is in contact with the second electromagnet; when the third cam lock is in the locked state, the third cam lock tongue is in contact with the third electromagnet; it also includes an electromagnetic latch lock for locking the first drawer;

The box is also provided with a power supply and a first relay, a second relay, and a third relay with normally closed contacts; one end of the power supply is respectively connected to one end of the first relay winding, one end of the second relay winding, and the second One end of the second relay contact, one end of the third relay winding, and one end of the third relay contact are connected. The lock tongue, one end of the second electromagnet power line, and one end of the third electromagnet power line are connected; one end of the first relay contact is connected with the first conductor, and the other end of the first relay contact is connected with the electromagnetic bolt lock power line The other end of the electromagnetic bolt lock power line is connected to the other end of the third relay winding; the other end of the third electromagnet power line is connected to the other end of the third relay contact; the third conductor is connected to the second relay The other end of the winding is connected; the other end of the second electromagnet power line is connected to the other end of the second relay contact; the second conductor is connected to the other end of the first relay winding;

The bottom of the box is provided with casters, and the back of the box is provided with an upward pull-type handle.

According to claim 1, a safety tool box for electric power maintenance, characterized in that, the electromagnetic bolt lock includes an upper sleeve arranged on the box body and an upper sleeve arranged on the first drawer corresponding to the position of the upper sleeve. The lower sleeve; the upper sleeve is provided with a metal latch, which can slide up and down in the upper sleeve and the lower sleeve; the upper end of the latch is provided with a baffle, and the outer diameter of the baffle is smaller than that of the upper sleeve The inner diameter of the barrel and the outer diameter of the baffle are larger than the inner diameter of the lower sleeve; the bottom end of the lower sleeve is provided with a bolt electromagnet; and a spring is also included, and the spring is located between the baffle and the lower sleeve.

As a further optimization of the present invention, the power supply adopts a lithium iron phosphate battery, and the voltage of the power supply is 6-12V.

As a further optimization of the present invention, the first rotary cam lock, the second rotary cam lock and the third rotary cam lock are provided with the same key; the handle part of the key is made of insulator material.

As a further optimization of the present invention, the first drawer, the third drawer and the second drawer are arranged sequentially from top to bottom.

As a further optimization of the present invention, the first drawer, the second drawer and the third drawer are arranged sequentially from top to bottom.

As a further optimization of the present invention, the upper sleeve and the lower sleeve are made of insulator material.

The invention provides a safety tool box for electric power maintenance. The handle can be pulled out, and the casters at the bottom of the box can be used to pull and walk. It is easy to use and easy to use; when in use, the first rotary tongue needs to be opened with a key. lock, the opening of the first cam lock will trigger the electromagnetic bolt lock to lock the first drawer, thereby confusing the thief into thinking that the key cannot open the first drawer; in fact, when the first cam lock is opened, a key is required Then open the third cam lock to open the third drawer; after opening the third drawer, open the second cam lock to open the second drawer, after the second cam lock is opened, the electromagnetic latch lock will Automatic opening, the first drawer can be opened; the invention needs to master the correct unlocking sequence to open the drawers one by one, the opening method of the first drawer has a confusing effect, which is beyond the thinking habits of the thief, and is very safe and reliable; Only one key is needed, but the set unlocking routine will make the thief mistakenly believe that three keys are needed, which greatly enhances the safety of the toolbox. The toolbox has simple structure, simple control, low cost, and good anti-theft effect.

Description of drawings

Fig. 1 is a kind of structural representation of the safety toolbox that is used for electric power maintenance of the present invention;

Fig. 2 is a sectional rear view of the first rotary cam lock of the toolbox shown in Fig. 1 in a locked state;

Fig. 3 is an enlarged cross-sectional schematic view of the open state of the toolbox electromagnetic latch lock shown in Fig. 2;

Fig. 4 is a sectional rear view of the toolbox shown in Fig. 2 in the open state of the first rotary cam lock;

Fig. 5 is an enlarged cross-sectional schematic diagram of the locked state of the electromagnetic latch of the toolbox shown in Fig. 4;

Fig. 6 is a wiring diagram of the electric control part of the toolbox shown in Fig. 2;

Wherein, the first drawer 1, the first rotary cam lock 11, the first rotary cam lock bolt 111, the first conductor 12, the second drawer 2, the second rotary cam lock 21, the second rotary cam lock bolt 211, the first Two conductors 22, a second electromagnet 23, a third drawer 3, a third cam lock 31, a third cam lock bolt 311, a third conductor 32, a third electromagnet 33, a box body 4, and an electromagnetic latch lock 5 , upper sleeve 51, lower sleeve 52, pin 53, baffle 54, pin electromagnet 55, spring 56, caster 6, handle 7, power supply U, first relay K1, first relay contact M1, second relay K2, the second relay contact M2, the third relay K3, the third relay contact M3, the first switch S1, the second switch S2, and the third switch S3.

detailed description

The present invention will be described in detail below in conjunction with specific embodiments.

As shown in Figure 1, the present embodiment includes a box body 4 and a first drawer 1, a second drawer 2, and a third drawer 3 arranged on the box body 4, and each drawer is correspondingly provided with a first rotary cam lock 11, a second rotary Cam lock 21 and third cam lock 31; the first cam lock 11 is used to lock the first drawer 1, the second cam lock 21 is used to lock the second drawer 2, and the third cam lock 31 is used to lock Live in the third drawer 3. The bottom of the box body 4 is provided with casters 6, and the back of the box body 4 is provided with an upward pull-type handle 7. When in use, the handle 7 is pulled up, and the toolbox can be dragged around by the casters 6, which is very convenient. convenient.

As shown in Figure 2, when using a key to turn the first turn tongue lock bolt 111 into a vertical state, the first turn tongue lock bolt 111 blocks the inner surface of the frame of the drawer opening of the box body 4, so that the first drawer 1 cannot be drawn out. , to play the role of locking the first drawer 1; as shown in Figure 4, when the first rotary tongue lock 11 is turned into a horizontal state with a key, the first drawer 1 can be drawn out at will; in the same way, the second rotary tongue Lock 21, the 3rd rotary cam lock 31 are the same as the first rotary cam lock 11 functional structures.

As shown in Figure 4, a first conductor 12 is provided near the first rotary cam lock 11 on the inner surface of the front panel of the first drawer 1. When the first rotary cam lock 11 is in the open state, the first rotary cam lock deadbolt 111 is in contact with the first conductor 12 . Similarly, the second drawer 2 is provided with a second conductor 22, and when the second rotary cam lock 21 is in an open state, the second rotary cam lock bolt 211 is in contact with the second conductor 22; the third drawer 3 is provided with a third conductor 32 , when the third cam lock 31 is in an open state, the third cam lock tongue 311 is in contact with the third conductor 32 . In addition, a second electromagnet 23 and a third electromagnet 33 are respectively provided near the frame of the second drawer opening and the frame of the third drawer opening of the casing 4; when the second rotary cam lock 21 is in the locked state, the second The cam lock bolt 211 is sucked by the second electromagnet 23; when the third cam lock 31 is in the locked state, the third cam lock bolt 311 is sucked by the third electromagnet 33. In addition, an electromagnetic bolt lock 5 for locking the first drawer 1 is also provided in the tool box.

In addition to the above-mentioned structural settings, an electrical system is also provided in the box body 4 of this embodiment. As shown in Figure 6, a power supply U and a first relay K1 with a normally closed contact and a second relay K2, the third relay K3; one end of the power supply U is respectively wound with one end of the first relay K1, one end of the second relay K2, one end of the second relay contact M2, and one end of the third relay K3. 1. One end of the third relay contact M3 is connected, and the other end of the power supply U is respectively connected to the first cam lock bolt 111, the second cam lock bolt 211, the third cam lock bolt 311, and the second electromagnet 23. One end of the power cord and one end of the third electromagnet 33 power cord are connected; one end of the first relay contact M1 is connected with the first conductor 12, and the other end of the first relay contact M1 is connected with one end of the electromagnetic latch lock 5 power cord , the other end of the electromagnetic bolt lock 5 power cord is connected to the other end of the third relay K3 winding; the other end of the third electromagnet 33 power cord is connected to the other end of the third relay contact M3; the third conductor 32 is connected to the third relay contact M3. The other end of the winding wire of the second relay K2 is connected; the other end of the power line of the second electromagnet 23 is connected to the other end of the second relay contact M2; the second conductor 22 is connected to the other end of the winding wire of the first relay K1; it needs to be explained What’s more, in order to express the wiring structure more clearly, as shown in FIG. The second switch S2, the third rotary cam lock tongue 311 and the third conductor 32 form a third switch S3.

The working process of the electrical system is as follows:

Use a key to turn the first cam lock bolt 111 to a horizontal state, so that the first rotary cam lock bolt 111 is connected to the first conductor 12, which is equivalent to turning on the first switch S1, and the first switch S1 is turned on Finally, the electromagnetic bolt lock 5 is energized, and the first drawer 1 is locked after the electromagnetic bolt lock 5 is energized. At the same time, the third relay K3 is wound and connected, and the third relay K3 is wound and connected to make the third relay contact M3 in the normally closed state disconnection, the disconnection of the third relay contact M3 causes the disconnection of the third electromagnet 33 power lines, and the third electromagnet 33 loses the electromagnetic force. At this time, the third rotary tongue lock bolt 311 in the vertical state no longer Being attracted by the third electromagnet 33, the third turn cam lock 31 can be easily opened with a key;

After using the key to turn the third cam lock bolt 311 to the horizontal position, the third cam lock bolt 311 is connected to the third conductor 32, which is equivalent to turning on the third switch S3, and the third switch S3 is connected The second relay K2 is wound and energized, and the second relay K2 is wound and energized to disconnect the second relay contact M2 in the normally closed state, and the second relay contact M2 is disconnected to cause the power line of the second electromagnet 23 to be disconnected, so that The second electromagnet 23 loses electromagnetic force, and at this moment, the second rotary cam lock dead bolt 211 in the vertical state is no longer sucked by the second electromagnet 23, and the second rotary cam lock 21 can be easily opened with a key;

After using the key to turn the second rotary cam lock 21 to the horizontal position, the second rotary cam lock bolt 211 is connected to the second conductor 22, which is equivalent to switching on the second switch S2, and the second switch S2 is connected to make the second switch S2 connected. A relay K1 is wound and energized, and the first relay K1 is wound and energized to disconnect the first relay contact M1 in the normally closed state. The disconnection of the first relay contact M1 causes the electromagnetic latch lock 5 to be powered off, and the electromagnetic latch after power failure The lock 5 is opened automatically, and the first drawer 1 can be drawn out freely.

Preferably, as shown in FIG. 3 and FIG. 5 , the electromagnetic bolt lock 5 includes an upper sleeve 51 arranged on the box body 4 and a lower sleeve 52 arranged on the first drawer 1 corresponding to the position of the upper sleeve 51 ; The upper sleeve 51 is provided with a latch 53 of metal material, and the latch 53 can slide up and down in the upper sleeve 51 and the lower sleeve 52; the upper end of the latch 53 is provided with a baffle 54, and the baffle 54 The outer diameter is smaller than the inner diameter of the upper sleeve 51, and the outer diameter of the baffle plate 54 is greater than the inner diameter of the lower sleeve 52; the bottom end of the lower sleeve 52 is provided with a bolt electromagnet 55; a spring 56 is also included, and the spring 56 is located on the baffle plate. 54 and the lower sleeve 52. After the plug electromagnet 55 is energized, the plug electromagnet 55 generates electromagnetic force and the latch 53 is sucked down to play the role of locking the first drawer 1. After the plug electromagnet 55 is powered off, the plug electromagnet 55 loses its attractive force, and the latch 53 Under the action of the spring force, it rises back to its original state, and at this moment, the first drawer 1 can be pulled out.

Preferably, the power supply U is a lithium iron phosphate battery, and the voltage of the power supply U is 6-12V. The lithium iron phosphate battery has a long service life, and it is safer to choose the voltage of the power supply U as 6-12V, even if a leakage occurs, it will not cause harm to people.

Preferably, the first cam lock 11 , the second cam lock 21 and the third cam lock 31 are provided with the same key; the handle of the key is made of insulator material. The same key is easy to carry, and there is no need to distinguish the keys, so it is more convenient to use, and the present invention can confuse the thief even if one key is used, making the thief think that three keys are needed to open the three drawers of the toolbox; The insulating material is to avoid the occurrence of electric shock.

Preferably, the first drawer 1 , the third drawer 3 and the second drawer 2 are arranged sequentially from top to bottom. This preferred solution can further confuse the thief, and it is generally difficult for the thief to think of opening the third drawer after opening the first drawer, which further improves the safety of the present invention.

Preferably, the first drawer 1 , the second drawer 2 and the third drawer 3 are arranged sequentially from top to bottom. This preferred solution conforms to the operator's habit of opening the drawer from top to bottom. .

Preferably, the upper sleeve 51 and the lower sleeve 52 are made of insulator material. The insulating material can prevent long-term use from causing the plug electromagnet 55 to magnetize the upper sleeve 51 and the lower sleeve 52, which affects the use effect.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand , the technical solution of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.

Claims (7)

1. A safety tool box for electric power maintenance, comprising a box body and a first drawer, a second drawer, and a third drawer arranged on the box body, each drawer is correspondingly provided with a first rotary cam lock and a second rotary cam lock and the third cam lock, wherein the first drawer is provided with a first conductor, and when the first cam lock is in an open state, the first cam lock tongue is in contact with the first conductor; the second drawer A second conductor is provided, and when the second rotary cam lock is in the open state, the second rotary cam lock bolt is in contact with the second conductor; the third drawer is provided with a third conductor, and when the third rotary cam lock is in the open state, The third turn tongue lock tongue is in contact with the third conductor; the box body is provided with a second electromagnet and a third electromagnet; when the second turn tongue lock is in the locked state, the second turn tongue lock bolt and The second electromagnet is in contact; when the third cam lock is in the locked state, the third cam lock tongue is in contact with the third electromagnet; it also includes an electromagnetic latch lock for locking the first drawer; The box is also provided with a power supply and a first relay, a second relay, and a third relay with normally closed contacts; one end of the power supply is respectively connected to one end of the first relay winding, one end of the second relay winding, and the second One end of the second relay contact, one end of the third relay winding, and one end of the third relay contact are connected. The lock tongue, one end of the second electromagnet power line, and one end of the third electromagnet power line are connected; one end of the first relay contact is connected with the first conductor, and the other end of the first relay contact is connected with the electromagnetic bolt lock power line The other end of the electromagnetic bolt lock power line is connected to the other end of the third relay winding; the other end of the third electromagnet power line is connected to the other end of the third relay contact; the third conductor is connected to the second relay The other end of the winding is connected; the other end of the second electromagnet power line is connected to the other end of the second relay contact; the second conductor is connected to the other end of the first relay winding; The bottom of the box is provided with casters, and the back of the box is provided with an upward pull-type handle. 2. A safety tool box for electric power maintenance according to claim 1, wherein the electromagnetic bolt lock includes an upper sleeve arranged on the box body and a first drawer corresponding to the position of the upper sleeve The upper and lower sleeves; the upper sleeve is provided with a metal latch, which can slide up and down in the upper sleeve and the lower sleeve; the upper end of the latch is provided with a baffle, and the outer diameter of the baffle is less than The inner diameter of the upper sleeve and the outer diameter of the baffle are greater than the inner diameter of the lower sleeve; the bottom end of the lower sleeve is provided with a bolt electromagnet; and a spring is also included, and the spring is located between the baffle and the lower sleeve. 3 . A safety toolbox for power maintenance according to claim 1 , wherein the power supply is a lithium iron phosphate battery, and the voltage of the power supply is 6-12V. 4. A safety toolbox for electric power maintenance according to claim 1, wherein the first rotary cam lock, the second rotary cam lock and the third rotary cam lock are provided with the same key; The handle of the key is made of insulator material. 5 . A safety toolbox for electric power maintenance according to claim 1 , wherein the first drawer, the third drawer and the second drawer are arranged sequentially from top to bottom. 6 . A safety toolbox for electric power maintenance according to claim 1 , wherein the first drawer, the second drawer and the third drawer are arranged sequentially from top to bottom. 7. A safety tool box for electric power maintenance according to claim 2, wherein the upper sleeve and the lower sleeve are made of insulator material.