CN108798292B - Mechanical logic device and use method - Google Patents

Abstract

The invention discloses a mechanical logic device and a using method thereof, which consists of a composite safety lock nose, a composite mechanical logic lock, a safety lock bolt and a safety lock nose; the shape of the safety lock bolt is a slope, and an inclined plane is arranged on the slope; the safety lock nose is in a slope shape, and a groove is arranged in the safety lock nose; the safety lock noses can be spliced mutually, and the safety lock bolts are arranged right above the safety lock noses and connected together to form a composite safety lock nose; the number of the composite safety lock noses and the number of the safety lock noses in each composite safety lock nose are the same as the number of the drawers of the drawer cabinet to be installed. When in use, the same side surface of each layer of drawer is provided with a composite safety lock nose; the composite mechanical logic lock is arranged in the cabinet body on the side surface of the drawer; the spatial positions of each lock head and each bolt in the composite mechanical logic lock are adjusted: the lock head corresponds to the safety lock bolt, and the bolt corresponds to the safety lock nose. Only one drawer can be opened in the drawer cabinet, and the problem that the gravity center of the drawer cabinet is moved outwards and overturns when a plurality of drawers are opened is effectively avoided.

Description

Mechanical logic device and use method

Technical Field

The invention relates to the technical field of mechanical logic devices, in particular to a mechanical logic device and a using method of the mechanical logic device, and the application range of the mechanical logic device comprises improvement of safety performance of a drawer cabinet, an experiment cabinet, a file cabinet and a locker.

Background

In recent years, various cabinets with drawers have fatal problems: when a plurality of drawers are pulled out simultaneously or the like and are improperly used, the drawers can fall over due to unstable gravity center. This is often the case, particularly when the drawers are turned over with great curiosity. For example, since 1999, a drawer cabinet from a certain manufacturer has been released, the global inventory has exceeded 6500 thousands of pieces, but it has fatal design defects: when a plurality of drawers are pulled open simultaneously, the gravity center of the cabinet is unstable and easy to tip over, so that a plurality of children are injured and killed, and the cabinet is called as a 'man killing cabinet'. The safety of such cabinets has not been improved and solved so far. Accordingly, there is a need for an apparatus that improves the safety performance of a multi-drawer cabinet.

Disclosure of Invention

The invention aims to provide a mechanical logic device which is simple in structure and convenient to use and can realize the output of an OR gate of a mechanical logic gate. The multi-drawer cabinet has the technical effects that only one drawer can be opened each time when the multi-drawer cabinet is used through the use of the mechanical logic device, and the technical problem that the multi-drawer cabinet is easy to overturn is solved. The invention solves the problem that the major potential safety hazard of overturning easily occurs when the drawer of the multi-drawer cabinet is randomly pulled open.

The invention aims to provide a using method of a mechanical logic device, which is easy to implement and simple and convenient to operate, when all drawers of a drawer cabinet are in a closed state, a mechanical logic lock is in a non-working state, any layer of drawers of the drawer cabinet can be pulled open at the moment, after any layer of drawers are pulled open, the mechanical logic lock is started, and any drawer left in the drawer cabinet cannot be opened any more at the moment unless the opened drawer is closed again. The invention can effectively avoid the potential safety hazard that the cabinet is overturned due to unstable gravity center caused by improper use, particularly children overturning the drawer cabinet disorderly.

In order to achieve the purpose, the invention adopts the following technical measures:

a mechanical logic device, consisting of: n (n is 3-4) (the first, the second, the third and the fourth) composite safety lock noses, the first, the second, the third and the fourth …. the nth composite mechanical logic lock; the nth composite safety lock nose consists of 1 safety lock bolt and n (n is 3 to 4) first, second, third and fourth safety lock noses; the method is characterized in that: the shape of the safety lock bolt is a slope, and an inclined plane is arranged on the slope; the first, second, third and fourth safety lock noses are in a slope shape, and a groove is arranged in the first, second, third and fourth safety lock noses; n (n is 3-4) first, second, third and fourth safety lock noses can be spliced with each other, and the number can be freely adjusted according to a use object; the safety lock bolt is arranged right above the first, second, third and fourth safety lock noses and is tightly connected with the first, second, third and fourth safety lock noses to form a first, second, third and fourth composite safety lock nose; the number of the first, second, third and fourth composite safety locking noses and the number of the safety locking noses in each composite safety locking nose are the same as the number of the drawers of the drawer cabinet to be installed.

The composite mechanical logic lock consists of n (n is 3-4) independent first, second, third, fourth and … … n mechanical logic locks; n (n is 3-4) mechanical logic locks are arranged in parallel to form a composite mechanical logic lock. Each independent first, second, third and fourth mechanical logic lock consists of a slide rail main body, a slide rail outer wall, a first, second, third and fourth lock heads, a first, second, third and fourth bolts and a spring; the spring is fixed above the sliding rail main body; the slide rail main part is in the slide rail outer wall, freely slides from top to bottom at the promotion of spring, and first tapered end, second tapered end, third tapered end, fourth tapered end and first bolt, second bolt, third bolt, fourth bolt are fixed on the slide rail main part. The slide rail main body can freely slide in the outer wall of the slide rail under the pushing of a spring; the first, second, third and fourth lock heads and the first, second, third and fourth bolts are fixed on the slide rail main body, and the space position of the slide rail main body can be adjusted and fixed.

The number n (n is 3-4) of independent mechanical logic locks forming the composite mechanical logic lock, and the number n (n is 3-4) of bolts in each of the independent first, second, third and fourth mechanical logic locks are the same as the number of drawers of the drawer cabinet to be installed.

The spatial position of the lock head in each independent mechanical logic lock can be adjusted and fixed, and the spatial positions of the first, second, third and fourth lock heads correspond to the spatial positions of the safety lock bolts of the corresponding first, second, third and fourth composite safety lock noses one by one. The spatial position of a first lock head in the first independent first mechanical logic lock corresponds to the spatial position of a first safety lock bolt of a first composite safety lock nose arranged on the drawer at the highest position; the spatial position of a second lock head in a second independent second mechanical logic lock corresponds to the spatial position of a second safety lock bolt of a second composite safety lock nose arranged on a second drawer; the spatial position of a third lock head in the third independent third mechanical logic lock corresponds to the spatial position of a third safety lock bolt of a third composite safety lock nose arranged on a third drawer; the spatial position of a fourth lock head in a fourth independent fourth mechanical logic lock (5d) corresponds to the spatial position of a fourth safety lock bolt of a fourth composite safety lock nose arranged on a fourth drawer. And so on.

The spatial position of each layer of bolt in the composite mechanical logic lock can be adjusted and fixed, and the spatial position of each layer of bolt is respectively in one-to-one correspondence with the spatial position of the safety lock nose of the third composite safety lock nose arranged on different drawers. The spatial positions of a first bolt in a first independent first mechanical logic lock, a first bolt in a second independent second mechanical logic lock, a first bolt in a third independent third mechanical logic lock and a first bolt in a fourth independent fourth mechanical logic lock are respectively in one-to-one correspondence with the spatial positions of a first safety lock nose, a second safety lock nose, a third safety lock nose and a fourth safety lock nose of a first composite safety lock nose arranged on a highest drawer; the spatial positions of a second bolt in a first independent first mechanical logic lock, a second bolt in a second independent second mechanical logic lock, a second bolt in a third independent third mechanical logic lock and a second bolt in a fourth independent third mechanical logic lock are respectively in one-to-one correspondence with the spatial positions of a first safety lock nose, a second safety lock nose, a third safety lock nose and a fourth safety lock nose of a composite safety lock nose arranged on a second drawer; the spatial positions of a third bolt in a first independent first mechanical logic lock, a third bolt in a second independent second mechanical logic lock, a third bolt in a third independent third mechanical logic lock and a third bolt in a fourth independent fourth mechanical logic lock are respectively in one-to-one correspondence with the spatial positions of a first safety lock nose, a second safety lock nose, a third safety lock nose and a fourth safety lock nose of a third composite safety lock nose arranged on a third drawer; the spatial positions of a fourth bolt in the first independent first mechanical logic lock, a fourth bolt in the second independent second mechanical logic lock, a fourth bolt in the third independent third mechanical logic lock and a fourth bolt in the fourth independent fourth mechanical logic lock are respectively in one-to-one correspondence with the spatial positions of a first safety lock nose, a second safety lock nose, a third safety lock nose and a fourth safety lock nose of a fourth composite safety lock nose (1d) arranged on a fourth drawer. And so on.

Through the combined use of the above parts, the technical effects that can be achieved are as follows: the final working state of the mechanical logic device is influenced by the change of the mutual space position between the composite safety lock nose arranged on the drawer and the composite mechanical logic lock arranged on the cabinet body. Through the combination, the mechanical logic device can realize the output of the OR gate of the mechanical logic gate. The concrete description is as follows: when all the drawers are in a closed state (the input is 0), the mechanical logic device is in a non-working state (the output is 0), and any layer of drawers of the drawer cabinet can be pulled open; when any drawer in the drawer layer is in an opening state (the input ends are 0,0,0, … and 1), the mechanical logic device is in a working state (the output end is 1), and all the remaining drawers of the drawer cabinet are locked and can not be opened any more.

The key core component of the device is a composite mechanical logic lock. In the invention, the lock head of the mechanical logic lock senses the change of the spatial position of the drawer, thereby realizing the function of mechanical input; under the action of the spring, each layer of bolt in the composite mechanical logic lock is displaced to be in a locking state, so that the function of mechanical logic output is realized.

The device mainly solves the technical difficulties that: through the combination of the spatial positions of several mechanical parts with simple structures, the opening and closing states of the drawers can be sensitively sensed, and the OR gate judgment output of the logic gate is made, so that only one drawer can be opened at each time when the multi-drawer cabinet is used by a mechanical method, and the technical problem that the multi-drawer cabinet is easy to overturn is solved.

A method of using a mechanical logic device, comprising the steps of:

A. when the mechanical logic device is used, the mechanical logic devices in corresponding combination are selected according to the drawer cabinet to be installed, wherein the number of the composite safety lock noses, the number of the safety lock noses in each composite safety lock nose, the number of the independent mechanical logic locks forming the composite mechanical logic lock and the number of the bolts in each independent mechanical logic lock are the same as the number of the drawers of the drawer cabinet to be installed;

B. when the drawer is installed, each composite safety lock nose is installed on the drawer, and one composite safety lock nose is sequentially installed on the same side face of each of the seven drawers; the composite mechanical logic lock is arranged in the cabinet body corresponding to the side surface of the drawer; adjusting the spatial positions of each lock head and each bolt in the composite mechanical logic lock;

C. after the mechanical logic lock is installed, when seven drawers are in a closed state when the drawer cabinet is used, the upper half parts of the slope inclined planes of all seven safety lock bolts are in contact with the lock heads of the corresponding seven independent mechanical logic locks, the slide rail main bodies in the composite mechanical logic lock move upwards, the springs are in compression, all bolts of the seven independent mechanical logic locks move upwards, and all safety lock noses corresponding to the bolts are in non-locking state;

D. when the drawer cabinet is used, one drawer is pulled open, wherein the slope inclined plane of the safety lock plunger installed on the pulled drawer moves downwards, the slope inclined plane is separated corresponding to the lock head of the independent mechanical logic lock, the slide rail body moves downwards under the action of the spring, all the bolts of the independent mechanical logic lock move downwards, and all the safety lock noses corresponding to the bolts are locked;

E. in this case, all the pins of one of the independent mechanical logic locks in the mechanical logic device are locked, all the remaining drawers of the drawer cabinet are locked and cannot be opened again until the opened drawers are closed again, and all the remaining drawers are opened.

Through the combination and the use of the mechanical logic device, the output function of the OR gate of the mechanical logic gate is realized, so that only one drawer can be opened by the same operation of the drawer cabinet, and the problem that the cabinet body is overturned due to the outward movement of the gravity center when the cabinet is not used is effectively avoided.

Among the technical measures of the above steps, the most critical step is the installation of mechanical logic devices of the drawer cabinet. The realization of the function of the mechanical logic lock needs to accurately install and adjust the spatial positions of each lock head and each bolt in the composite mechanical logic lock in place.

The invention mainly solves the technical problems and difficulties that:

the invention solves the technical problem that the drawer cabinet can be overturned due to the gravity center shift when being used at will.

The invention achieves the advantages and the technical effects that:

the invention realizes the judgment and output of the OR gate of the logic gate through the mechanical logic device, and realizes that only one drawer of the multi-drawer cabinet can be pulled open at a time. Therefore, the condition that the drawer cabinet is overturned to cause casualties due to the fact that the gravity center of the drawer is not shifted when the drawer cabinet is randomly used by children is avoided. The invention adopts a pure mechanical structure, is firm and durable and has strong practical value.

The main differences and advantages of the invention from the prior art are:

A. at present, a mature and reliable scheme for effectively improving the design of a cabinet body is not available aiming at the important safety problem that a multi-drawer cabinet is easy to overturn.

B. The invention uses a purely mechanical method and an easy processing device, carries out mechanical logic input by sensing the opening and closing state of the drawer, and makes OR gate judgment output of the logic gate, thereby realizing that only one drawer can be opened every time when the multi-drawer cabinet is used, and effectively solving the potential safety hazard that the prior drawer cabinet is overturned because the gravity center moves outwards when the prior drawer cabinet is not used properly.

C. The invention adopts a pure mechanical design, does not need any external power, but the prior similar logic output technology needs an external circuit and power, and is not applied to the improvement of the safety performance of the multi-drawer cabinet.

D. The invention adopts a pure mechanical device to realize the output of the logic gate without external power. In addition, the device has the advantages of simple structure, convenient use, firmness, durability, reliable performance and strong practicability.

Description of the drawings:

fig. 1 is a schematic view of a composite safety lock nose structure of a mechanical logic device.

Fig. 2 is a front view of a composite mechanical logic lock structure of a mechanical logic device.

Fig. 3 is a front view of an individual mechanical logic lock with a mechanical logic device forming a composite mechanical logic lock.

FIG. 4 is a right side view of a composite mechanical logic lock configuration of a mechanical logic device.

Fig. 5 is a schematic view of a mechanical logic device installed in use with respect to spatial location.

Wherein: 1 a-a first composite safety lock nose, 1 b-a second composite safety lock nose, 1 c-a third composite safety lock nose, 1 d-a fourth composite safety lock nose, 2-a composite mechanical logic lock, 3-a safety lock bolt, 41-a first safety lock nose, 42-a second safety lock nose, 43-a third safety lock nose, 44-a fourth safety lock nose, 5 a-a first mechanical logic lock, 5 b-a second mechanical logic lock, 5 c-a third mechanical logic lock, 5 d-a fourth mechanical logic lock, 6-a slide rail main body, 7-a slide rail outer wall, 8-a first lock, 8 b-a second lock, 8 c-a third lock, 8 d-a fourth lock, 91-a first bolt, 92-a second bolt, 93-a third bolt, 94-a fourth bolt, and 10-a spring.

Detailed Description

Example 1:

the invention is described in further detail below with reference to the figures and examples. In this embodiment, the drawer cabinet to be installed is a 4-drawer cabinet. According to the drawings of fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a mechanical logic device is composed of a first composite safety lock nose 1a, a second composite safety lock nose 1b, a third composite safety lock nose 1c, a fourth composite safety lock nose 1d and a composite mechanical logic lock 2; the composite safety lock nose 1 consists of a safety lock bolt 3, a first safety lock nose 41, a second safety lock nose 42, a third safety lock nose 43 and a fourth safety lock nose 44; the composite mechanical logic lock 2 consists of a first mechanical logic lock 5a, a second mechanical logic lock 5b, a third mechanical logic lock 5c and a fourth mechanical logic lock 5d, and the safety lock bolt 3 is arranged right above a first safety lock nose 41, a second safety lock nose 42, a third safety lock nose 43 and a fourth safety lock nose 44, and the first safety lock nose, the second safety lock nose, the third safety lock nose and the fourth safety lock nose are tightly connected together to form the composite safety lock nose 1. The number of the composite safety lock noses 1 is the same as that of the drawers of the drawer cabinet to be installed. The method is characterized in that: the safety lock plunger 3 is in a slope shape, and an inclined plane is arranged on the slope; the safety lock noses of the first safety lock nose 41, the second safety lock nose 42, the third safety lock nose 43 and the fourth safety lock nose 44 are in a slope shape, and a groove is arranged in the safety lock noses; the safety lock bolt 3 is arranged right above the first safety lock nose 41, the second safety lock nose 42, the third safety lock nose 43 and the fourth safety lock nose 44, and the first safety lock nose, the second safety lock nose 1b, the third safety lock nose 1c and the fourth safety lock nose 1d are connected together to form a first composite safety lock nose 1a, a second composite safety lock nose 1b, a third composite safety lock nose 1c and a fourth composite safety lock nose 1 d; the composite mechanical logic locks 2 are arranged in parallel to form a composite mechanical logic lock, and each independent first mechanical logic lock 5a, second mechanical logic lock 5b, third mechanical logic lock 5c and fourth mechanical logic lock 5d consists of a slide rail main body 6, a slide rail outer wall 7, a lock head 8 (a first lock head 8a, a second lock head 8b, a third lock head 8c and a fourth lock head 8d), a first bolt 91, a second bolt 92, a third bolt 93, a fourth bolt 94 and a spring 10; the spring is fixed above the slide rail main body 6; the slide rail main body 6 is arranged in the slide rail outer wall 7, and a first lock 8a, a second lock 8b, a third lock 8c, a fourth lock 8d, a first bolt 91, a second bolt 92, a third bolt 93 and a fourth bolt 94 are fixed on the slide rail main body 6.

The spatial position of a first lock head 8a in the first mechanical logic lock 5a corresponds to the spatial position of a first safety lock bolt 3a of a first composite safety lock nose 1a arranged on the drawer; the spatial position of a second lock head 8b in the second mechanical logic lock 5b corresponds to the spatial position of a second safety lock bolt 3b of a second composite safety lock nose 1b arranged on a second drawer; the spatial position of a third tapered end 8c in the third mechanical logic lock 5c corresponds to the spatial position of a third safety lock bolt 3c of a third composite safety lock nose 1c arranged on a third drawer; the spatial position of the fourth lock head 8d in the fourth mechanical logic lock 5d corresponds to the spatial position of the fourth safety lock bolt 3d of the fourth composite safety lock nose 1d installed on the fourth drawer.

A first bolt 91a is arranged in the first mechanical logic lock 5a, a first bolt 91b is arranged in the second mechanical logic lock 5b, a first bolt 91c is arranged in the third mechanical logic lock 5c, and a spatial position of a first bolt 91d is arranged in the fourth mechanical logic lock 5d and respectively corresponds to spatial positions of a first safety lock nose 41a, a second safety lock nose 42a, a third safety lock nose 43a and a fourth safety lock nose 44a in a composite first safety lock nose 1a arranged on a first drawer from the high downwards; a second bolt 92a is arranged in the first mechanical logic lock 5a, a second bolt 92b is arranged in the second mechanical logic lock 5b, a second bolt 92c is arranged in the third mechanical logic lock 5c, and a spatial position of a second bolt 92d is arranged in the fourth mechanical logic lock 5d and respectively corresponds to spatial positions of a first safety lock nose 41b, a second safety lock nose 42b, a third safety lock nose 43b and a fourth safety lock nose 44b in a composite second safety lock nose 1b arranged on a second drawer in a one-to-one correspondence manner; a third bolt 93a is arranged in the first mechanical logic lock 5a, a third bolt 93b is arranged in the second mechanical logic lock 5b, a third bolt 93c is arranged in the third mechanical logic lock 5c, and a spatial position of the third bolt 93d is arranged in the fourth mechanical logic lock 5d and respectively corresponds to spatial positions of a first safety lock nose 41c, a second safety lock nose 42c, a third safety lock nose 43c and a fourth safety lock nose 44c in a composite third safety lock nose 1c arranged on a third drawer one by one; a fourth bolt 94a is arranged in the first mechanical logic lock 5a, a fourth bolt 94b is arranged in the second mechanical logic lock 5b, a fourth bolt 94c is arranged in the third mechanical logic lock 5c, and the spatial position of the fourth bolt 94d is arranged in the fourth mechanical logic lock 5d and respectively corresponds to the spatial positions of a first safety lock nose 41d, a second safety lock nose 42d, a third safety lock nose 43d and a fourth safety lock nose 44d in a composite fourth safety lock nose 1d arranged on a fourth drawer.

The first safety lock nose 41, the second safety lock nose 42, the third safety lock nose 43 and the fourth safety lock nose 44 are in a slope shape, and a groove is arranged in the first safety lock nose 41, the second safety lock nose 42, the third safety lock nose 43 and the fourth safety lock nose 44; the safety lock bolt 3 is arranged right above the first safety lock nose 41, the second safety lock nose 42, the third safety lock nose 43 and the fourth safety lock nose 44, and the first safety lock nose, the second safety lock nose, the third safety lock nose and the fourth safety lock nose are tightly connected together to form the composite safety lock nose 1. The number of the composite safety lock noses 1 is the same as that of the drawers of the drawer cabinet to be installed. The composite mechanical logic lock 2 consists of a first mechanical logic lock 5a, a second mechanical logic lock 5b, a third mechanical logic lock 5c and a fourth mechanical logic lock 5 d; the independent mechanical logic locks 2 are arranged in parallel to form a composite mechanical logic lock. Each independent first mechanical logic lock 5a, second mechanical logic lock 5b, third mechanical logic lock 5c and fourth mechanical logic lock 5d consists of a slide rail main body 6, a slide rail outer wall 7, a lock head 8, a first bolt 91, a second bolt 92, a third bolt 93, a fourth bolt 94 and a spring 10; the spring is fixed above the slide rail main body 6; the slide rail main body 6 is arranged in the slide rail outer wall 7 and can freely slide up and down under the pushing of a spring; the slide rail main body 6 can slide freely in the slide rail outer wall 7 under the pushing of the spring 10; the lock 8, the first bolt 91, the second bolt 92, the third bolt 93 and the fourth bolt 94 are fixed on the slide rail main body 6, and the spatial position of the slide rail main body can be adjusted and fixed. The spatial position of a first tapered end 8a in the first independent first mechanical logic lock 5a corresponds to the spatial position of a first safety lock bolt 3a of a composite first safety lock nose 1a arranged on the drawer at the highest position; the spatial position of a second lock head 8b in a second independent second mechanical logic lock 5b corresponds to the spatial position of a second safety lock bolt 3b of a second composite safety lock nose 1b arranged on a second drawer; the spatial position of a third lock head 8c in a third independent third mechanical logic lock 5c corresponds to the spatial position of a third safety lock bolt 3c of a third composite safety lock nose 1c arranged on a third drawer; the spatial position of a fourth lock head 8d in the fourth independent fourth mechanical logic lock 5d corresponds to the spatial position of a fourth safety lock bolt 3d of a fourth composite safety lock nose 1d arranged on a fourth drawer. A first bolt 91a is arranged in the first independent first mechanical logic lock 5a, a first bolt 91b is arranged in the second independent second mechanical logic lock 5b, a first bolt 91c is arranged in the third independent third mechanical logic lock 5c, and the spatial position of a first bolt 91d is arranged in the fourth independent mechanical logic lock 5d, and the spatial positions respectively correspond to the spatial positions of a first safety lock nose 41, a second safety lock nose 42, a third safety lock nose 43, a first safety lock nose 41a, a second safety lock nose 42a, a third safety lock nose 43 and a fourth safety lock nose 44a of a first composite safety lock nose 1a arranged on a first drawer from the highest position downwards; a second bolt 92a is arranged in the first independent first mechanical logic lock 5a, a second bolt 92b is arranged in the second independent second mechanical logic lock 5b, a second bolt 92c is arranged in the third independent third mechanical logic lock 5c, and a second bolt 92d is arranged in the fourth independent fourth mechanical logic lock 5d, and the spatial positions of the first bolt 41b, the second bolt 42b, the third bolt 43b and the fourth bolt 44b in the second composite safety lock nose 1b arranged on the second drawer correspond to the spatial positions of the first safety lock nose 41b, the second safety lock nose 42b, the third safety lock nose 43b and the fourth safety lock nose 44b respectively; a third bolt 93a is arranged in the first independent first mechanical logic lock 5a, a third bolt 93b is arranged in the second independent second mechanical logic lock 5b, a third bolt 93c is arranged in the third independent third mechanical logic lock 5c, and a third bolt 93d is arranged in the fourth independent fourth mechanical logic lock 5d, and the spatial positions of the first safety lock nose 41c, the second safety lock nose 42c, the third safety lock nose 43c and the fourth safety lock nose 44c in the third composite safety lock nose 1c arranged on the third drawer are respectively in one-to-one correspondence with the spatial positions of the first safety lock nose 41c, the second safety lock nose 42c, the third safety lock nose 43c and the fourth safety lock nose 44 c; a fourth bolt 94a is arranged in the first independent first mechanical logic lock 5a, a fourth bolt 94b is arranged in the second independent second mechanical logic lock 5b, a fourth bolt 94c is arranged in the third independent third mechanical logic lock 5c, and a fourth bolt 94d is arranged in the fourth independent fourth mechanical logic lock 5d, and the spatial positions of the first safety lock nose 41d, the second safety lock nose 42d, the third safety lock nose 43d and the fourth safety lock nose 44d in the fourth composite safety lock nose 1d arranged on the fourth drawer correspond to one another respectively.

Through the above embodiments, a specific mechanical logic device designed for a four-drawer cabinet is realized. The device can realize the technical effect that only one drawer can be pulled open in the process of randomly opening the drawer of the four-drawer cabinet.

Example 2:

as shown in fig. 5, taking the drawer cabinet to be installed as a four-drawer cabinet as an example, a method for using a mechanical logic device includes the steps of:

A. when the mechanical logic device is used, the mechanical logic device with the corresponding combination is selected according to the drawer cabinet to be installed. The number of the composite safety locking noses, the number of the safety locking noses in each composite safety locking nose, the number of the independent mechanical logic locks forming the composite mechanical logic lock and the number of the inserted pins in each independent mechanical logic lock are all the same as the number of the drawers of the drawer cabinet to be installed.

In this embodiment, the drawer cabinet to be installed is a four-drawer cabinet. A mechanical logic device comprising: four composite safety lock noses (1a, 1b, 1c, 1d) and a composite mechanical logic lock 2. Each composite safety lock nose consists of a safety lock bolt 3 and four safety lock noses; the compound mechanical logic lock 2 is composed of four mechanical logic locks.

B. When the drawer is installed, as shown in fig. 5, each composite safety lock nose is installed on the drawer, and one composite safety lock nose is sequentially installed on the same side surface of each of the four drawers; the composite mechanical logic lock is arranged in the cabinet body corresponding to the side surface of the drawer; the spatial positions of each lock head and each bolt in the composite mechanical logic lock are well adjusted.

C. After the mechanical logic lock is installed, when the drawer cabinet is used, when four drawers are all in a closed state (the input is 0), the upper half parts of the slope inclined planes of all four safety lock bolts are all in contact with the lock heads of the corresponding four independent mechanical logic locks. At the moment, the slide rail main bodies in the composite mechanical logic lock move upwards, the springs are in a compressed state, all the bolts of the four independent mechanical logic locks move upwards, and therefore all the safety lock noses corresponding to the bolts are in a non-locking state.

In this case, all the latches of the mechanical logic device are in the unlocked state (output 0), and any drawer of the drawer cabinet can be pulled open.

D. When the drawer cabinet is used, when one drawer is in an open state (the input end is 0,0,0, …,1), wherein the slope inclined surface of the safety lock plunger installed on the open drawer moves downwards, the slope inclined surface is separated corresponding to the lock head of the independent mechanical logic lock, at this moment, the composite mechanical logic lock moves downwards under the action of the spring, all the bolts of the independent mechanical logic lock move downwards, and therefore all the safety lock noses corresponding to the bolts are in a locked state.

In this case, all the latches of one of the independent mechanical logic locks in the mechanical logic device are in the locked working state (output 1), and all the remaining drawers of the drawer cabinet are locked and cannot be opened any more. All the remaining drawers cannot be opened until the opened drawer is closed again.

Through the installation and the operation, four drawers of the drawer cabinet can be opened, and only one drawer can be opened in each operation, so that the problem that the gravity center of the cabinet body moves outwards and turns over is effectively avoided.

Claims (4)

1. A mechanical logic device is composed of a first composite safety lock nose (1a), a second composite safety lock nose (1b), a third composite safety lock nose (1c), a fourth composite safety lock nose (1d) and a composite mechanical logic lock (2); the composite safety lock nose consists of a safety lock bolt (3), a first safety lock nose (41), a second safety lock nose (42), a third safety lock nose (43) and a fourth safety lock nose (44); the composite mechanical logic lock (2) consists of a first mechanical logic lock (5a), a second mechanical logic lock (5b), a third mechanical logic lock (5c) and a fourth mechanical logic lock (5 d); the method is characterized in that: the safety lock plunger (3) is in a slope shape, and an inclined plane is arranged on the slope; the safety lock noses of the first safety lock nose (41), the second safety lock nose (42), the third safety lock nose (42) and the fourth safety lock nose (42) are in a slope shape, and a groove is arranged in the safety lock nose; the safety lock bolt (3) is arranged above the first safety lock nose (41), the second safety lock nose (42), the third safety lock nose (43) and the fourth safety lock nose (44), and the first safety lock nose, the second safety lock nose (1b), the third safety lock nose (1c) and the fourth safety lock nose (1d) are connected to form a first composite safety lock nose (1a), a second composite safety lock nose (1b), a third composite safety lock nose (1c) and a fourth composite safety lock nose (1 d); the composite mechanical logic locks (2) are arranged in parallel to form a composite mechanical logic lock, and each independent first mechanical logic lock (5a), second mechanical logic lock (5b), third mechanical logic lock (5c) and fourth mechanical logic lock (5d) consists of a sliding rail main body (6), a sliding rail outer wall (7), a lock head (8), a first bolt (91), a second bolt (92), a third bolt (93), a fourth bolt (94) and a spring 10; the spring is fixed above the sliding rail main body (6); the slide rail main body (6) is arranged in the slide rail outer wall (7), and a first lock head (8a), a second lock head (8b), a third lock head (8c), a fourth lock head (8d), a first bolt (91), a second bolt (92), a third bolt (93) and a fourth bolt (94) are fixed on the slide rail main body (6).

2. A mechanical logic device in accordance with claim 1, wherein: the spatial position of a first lock head (8a) in the first mechanical logic lock (5a) corresponds to the spatial position of a first safety lock bolt (3a) of a first composite safety lock nose (1a) arranged on the drawer; the spatial position of a second lock head (8b) in the second mechanical logic lock (5b) corresponds to the spatial position of a second safety lock bolt (3b) of a second composite safety lock nose (1b) arranged on a second drawer; the spatial position of a third lock head (8c) in the third mechanical logic lock (5c) corresponds to the spatial position of a third safety lock bolt (3c) of a third composite safety lock nose (1c) arranged on a third drawer; the spatial position of a fourth lock head (8d) in the fourth mechanical logic lock (5d) corresponds to the spatial position of a fourth safety lock bolt (3d) of a fourth composite safety lock nose (1d) arranged on a fourth drawer.

3. A mechanical logic device in accordance with claim 1, wherein: a first bolt (91a) is arranged in the first mechanical logic lock (5a), a first bolt (91b) is arranged in the second mechanical logic lock (5b), a first bolt (91c) is arranged in the third mechanical logic lock (5c), and the spatial position of the first bolt (91d) is arranged in the fourth mechanical logic lock (5d) and respectively corresponds to the spatial positions of a first safety lock nose (41a), a second safety lock nose (42a), a third safety lock nose (43a) and a fourth safety lock nose (44a) in a composite first safety lock nose (1a) arranged on a first drawer from high to low one by one; a second bolt (92a) is arranged in the first mechanical logic lock (5a), a second bolt (92b) is arranged in the second mechanical logic lock (5b), a second bolt (92c) is arranged in the third mechanical logic lock (5c), and the spatial position of the second bolt (92d) is arranged in the fourth mechanical logic lock (5d) and respectively corresponds to the spatial positions of a first safety lock nose (41b), a second safety lock nose (42b), a third safety lock nose (43b) and a fourth safety lock nose (44b) in a composite second safety lock nose (1b) arranged on a second drawer one by one; a third bolt (93a) is arranged in the first mechanical logic lock (5a), a third bolt (93b) is arranged in the second mechanical logic lock (5b), a third bolt (93c) is arranged in the third mechanical logic lock (5c), and the spatial position of the third bolt (93d) is arranged in the fourth mechanical logic lock (5d) and respectively corresponds to the spatial positions of a first safety lock nose (41c), a second safety lock nose (42c), a third safety lock nose (43c) and a fourth safety lock nose (44c) in a composite third safety lock nose (1c) arranged on a third drawer one by one; a fourth bolt (94a) is arranged in the first mechanical logic lock (5a), a fourth bolt (94b) is arranged in the second mechanical logic lock (5b), a fourth bolt (94c) is arranged in the third mechanical logic lock (5c), and the spatial position of the fourth bolt (94d) is arranged in the fourth mechanical logic lock (5d) and respectively corresponds to the spatial positions of a first safety lock nose (41d), a second safety lock nose (42d), a third safety lock nose (43d) and a fourth safety lock nose (44d) in a composite fourth safety lock nose (1d) arranged on a fourth drawer one by one.

4. A method of using a mechanical logic device as recited in claim 1, comprising the steps of:

A. when the mechanical logic device is used, the mechanical logic devices in corresponding combination are selected according to the drawer cabinet to be installed, wherein the number of the composite safety lock noses, the number of the safety lock noses in each composite safety lock nose, the number of the independent mechanical logic locks forming the composite mechanical logic lock and the number of the bolts in each independent mechanical logic lock are the same as the number of the drawers of the drawer cabinet to be installed;

B. when the drawer is installed, each composite safety lock nose is installed on the drawer, and one composite safety lock nose is sequentially installed on the same side face of each of the seven drawers; the composite mechanical logic lock is arranged in the cabinet body corresponding to the side surface of the drawer; adjusting the spatial positions of each lock head and each bolt in the composite mechanical logic lock;

C. after the mechanical logic lock is installed, when seven drawers are in a closed state when the drawer cabinet is used, the upper half parts of the slope inclined planes of all seven safety lock bolts are in contact with the lock heads of the corresponding seven independent mechanical logic locks, the slide rail main bodies in the composite mechanical logic lock move upwards, the springs are in compression, all bolts of the seven independent mechanical logic locks move upwards, and all safety lock noses corresponding to the bolts are in non-locking state;

D. when the drawer cabinet is used, one drawer is pulled open, wherein the slope inclined plane of the safety lock plunger installed on the pulled drawer moves downwards, the slope inclined plane is separated corresponding to the lock head of the independent mechanical logic lock, the slide rail body moves downwards under the action of the spring, all the bolts of the independent mechanical logic lock move downwards, and all the safety lock noses corresponding to the bolts are locked;

E. in this case, all the pins of one of the independent mechanical logic locks in the mechanical logic device are locked, all the remaining drawers of the drawer cabinet are locked and cannot be opened again until the opened drawers are closed again, and all the remaining drawers are opened.

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