CN220952574U - Small electromagnetic door lock capable of preventing false touch and door opening and closing detection - Google Patents

Abstract

The technical scheme of the utility model discloses a small electromagnetic door lock capable of preventing false touch and door opening and closing detection, which comprises a base, a cam, a torsion spring, a long sliding block and an electric box, wherein the cam is arranged above the front part of the base, the electric box is arranged above the rear part of the base, the front end of the long sliding block is arranged between the cam and the base, the rear end is pressed between the electric box and the base, an upper cover plate is arranged above the cam, the middle part of the cam is arranged on the upper cover plate through a cam shaft, the torsion spring is arranged at the rear part of the cam, one end of the torsion spring is connected with the cam, the other end of the torsion spring is connected with the upper cover plate, the front part of the long sliding block is downwards sunken to form a sliding block upper groove, the sliding block upper groove corresponds to the position of the torsion spring, the front end of the long sliding block is abutted against the rear side of the cam head, a sliding block slope structure is arranged at the left side of the rear part of the long sliding block, a limit rib and a limit groove are arranged at the right side of the long sliding block, the electric box is matched with the sliding block slope structure and the limit rib and the limit groove, so that the door opening and closing detection and false touch prevention function are realized.

Description

Small electromagnetic door lock capable of preventing false touch and door opening and closing detection

Technical Field

The utility model belongs to the technical field of door locks, and particularly relates to a small electromagnetic door lock capable of preventing false touch and door opening and closing detection.

Background

With the development of science and technology and economy, there is an increasing demand for classification washing of small articles such as sock underwear and other daily clothing, and thus, there is an increasing demand for small washing machines. In order to ensure the operation safety of the washing machine, an electromagnetic door lock is usually arranged on a door cover of the washing machine to unlock and lock the door cover. The conventional door lock requires a large installation space regardless of a small-sized washing machine alone or an auxiliary drum integrated on the conventional washing machine, and is not suitable for locking and unlocking of a door cover of the small-sized washing machine and the auxiliary drum, and when the door lock is miniaturized to be suitable for the small-sized washing machine and the auxiliary drum, functions of the door lock, such as abnormal operation of the washing machine due to erroneous touch, door opening and closing detection function, and the like, are generally sacrificed.

Patent CN 110241563B discloses a miniaturized door lock device, which comprises a door lock body with an accommodating space; the lock catch rotates when the door hook of the door enters or retreats and is combined with or separated from the door hook; the lock catch supporting component is combined with the door lock body through a hinge and is supported, the lock catch supporting component is combined with the lock catch to support the rotation of the lock catch, and when the lock catch rotates, the lock catch rotates along the entering or retreating direction of the door hook by taking the hinge as the center; a slider that moves between a locked position restricting movement of the latch support member and an unlocked position allowing movement of the latch support member; the solenoid comprises a coil framework and a plunger, wherein the coil framework is used for winding a coil, and the plunger moves towards the side of the coil framework according to an electric signal; and the elastic component is positioned between the door lock body and the lock catch supporting component and is used for pressurizing the lock catch supporting component towards the direction away from the door lock body, and the detection switch is used for identifying whether the sliding block is in a locking state or not through the matching of the sliding block, the driving terminal and the reinforcing ribs, but the length of the whole device is larger, the length of the space required for installation is required, and abnormal actions of the washing machine caused by false touch cannot be avoided. Therefore, there is a need to develop a small electromagnetic door lock suitable for a small washing machine, which increases the functions of preventing false touch and opening and closing door detection.

Disclosure of utility model

In order to solve the existing technical problems, the utility model provides a small electromagnetic door lock capable of preventing false touch and detecting the opening and closing of the door, which is characterized in that the miniaturization of a door lock assembly is realized by mutually matching a cam, a long sliding block, an upper cover plate, a push rod, a sliding frame and the door lock, and meanwhile, the functions of detecting the opening and closing of the door and preventing false touch are added.

The technical scheme of the utility model is as follows: the utility model provides a prevent mistake and touch and switch small-size electromagnetic door lock that door detected, including base, cam, torsional spring, long slider and electrical apparatus box, the cam is installed in the front portion top of base, electrical apparatus box is installed in the rear portion top of base, long slider installs at the base middle part and extends along the fore-and-aft direction, long slider's front end sets up between cam and base, long slider's rear end compresses tightly between electrical box and base, the top of cam sets up the upper cover plate, upper cover plate and base are connected, the middle part of cam is installed on the upper cover plate through the camshaft, the torsional spring sets up the rear portion at the cam, the one end and the cam of torsional spring are connected, the other end and upper cover plate are connected, long slider's front end is arc structure, long slider's front portion undercut forms slider upper groove, the slider upper groove corresponds with the position of torsional spring, long slider's front end supports tightly at the rear side of cam head, long slider's rear left side sets up slide structure, the right side sets up spacing muscle and spacing groove looks adaptation.

Further, the electrical apparatus box includes electrical apparatus box upper cover, electrical apparatus box end box, ejector PIN, sliding frame, cotter PIN, coil, iron core, terminal and conducting strip, electrical apparatus box upper cover passes through the buckle to be connected in the upside of electrical apparatus box end box, ejector PIN, sliding frame, the coil, iron core, terminal and conducting strip set up between electrical apparatus box upper cover and electrical apparatus box end box, and carry out spacingly through the recess on the electrical apparatus box end box, the ejector PIN top is tightly between slider slope structure and conducting strip, the lower extreme and the slider slope structure looks adaptation of ejector PIN, slider slope structure's back-and-forth movement drives the ejector PIN and moves in vertical direction, the one end and the ejector PIN of conducting strip contact, the rear portion at the cotter PIN is fixed, the lower part and the spacing groove of cotter PIN correspond, sliding frame's rear portion sets up frame slope structure, frame slope structure and the front portion looks adaptation of cotter PIN, sliding frame's left and right movement drive cotter PIN moves in vertical direction, sliding frame's lower part sets up spacing arch, spacing arch and spacing rib correspond, sliding frame's left end passes through iron core and coil connection, the terminal includes I, terminal and PIN III contact, a PIN contact with another PIN, PIN contact, another PIN contacts with another PIN III.

Further, the limit rib is arranged on the left side of the limit protrusion.

Further, the upper cover plate lower extreme sets up the guide post, sets up the guide way on the base, guide post and guide way looks adaptation, electric apparatus box end box is installed on the base through the buckle.

Further, a sliding rail is arranged on the base, the sliding rail extends along the front-back direction, and the long sliding block moves back and forth along the sliding rail.

Further, the sliding block slope structure is a structure with a high front part and a low rear part, and the frame slope structure is a structure with a low left part and a high right part.

By adopting the technical scheme, the beneficial effects of the utility model are as follows:

(1) According to the door lock, through the installation structure among the cam, the long sliding block, the upper cover plate, the ejector rod, the sliding frame and the door lock, the functions of unlocking and locking the door hook and the like are guaranteed, meanwhile, the space is saved, miniaturization and microminiaturization of the door lock assembly are achieved, meanwhile, through the mutual coordination among the structures, the door opening and closing detection and false touch prevention functions are increased, the safety is further improved, and the structure and the function of the existing door lock are optimized to the greatest extent.

(2) According to the utility model, the ejector rod is driven to move up and down through the forward and backward movement of the long sliding block, the on-off electricity of the terminal and the coil is realized through the up and down movement of the ejector rod, the door opening and closing detection function is further realized, the structure of the long sliding block is optimized, the fixing of the sliding frame and the long sliding block is realized when the door hook is in an unlocking state through the matching of the limiting ribs and the limiting protrusions of the sliding frame, the coil cannot be driven to move through the iron core, and therefore, the abnormal work of the washing machine penalized by manual misoperation is avoided, and the structure is simple and stable.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a long slider according to the present utility model;

FIG. 3 is a schematic diagram of the cooperation structure of the ejector pin and the long slider of the present utility model;

FIG. 4 is a schematic view of the mating structure of the door pin and long slider of the present utility model;

FIG. 5 is a schematic view of the mating structure of the sliding frame and the long slider of the present utility model;

Fig. 6 is a schematic diagram of the overall structure of the present utility model.

In the figure, a base 1, a cam 2, a torsion spring 3, a long sliding block 4, an electric box 5, an upper cover plate 6, a cam shaft 7, a sliding block upper groove 8, a sliding block slope structure 9, a limit rib 10, a limit groove 11, an electric box upper cover 12, an electric box bottom box 13, a push rod 14, a sliding frame 15, a door PIN 16, a coil 17, an iron core 18, a conductive sheet 19, a frame slope structure 20, a limit protrusion 21, a terminal I22, a terminal II 23, a terminal III 24, a PIN needle 25, a guide post 26, a guide groove 27 and a door hook 28.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description.

Example 1

Referring to fig. 1-6, a small electromagnetic door lock capable of preventing false touch and door opening and closing detection comprises a base 1, a cam 2, a torsion spring 3, a long sliding block 4 and an electric box 5, wherein the cam 2 is installed above the front part of the base 1, the electric box 5 is installed above the rear part of the base 1, the long sliding block 4 is installed in the middle of the base 1 and extends along the front-back direction, the front end of the long sliding block 4 is arranged between the cam 2 and the base 1, the rear end of the long sliding block 4 is tightly pressed between the electric box 5 and the base 1, an upper cover plate 6 is arranged above the cam 2, the upper cover plate 6 is connected with the base 1, the middle part of the cam 2 is installed on the upper cover plate 6 through a cam shaft 7, the torsion spring 3 is arranged at the rear part of the cam 2, one end of the torsion spring 3 is connected with the cam 2, the other end of the torsion spring is connected with the upper cover plate 6, the front end of the long sliding block 4 is of an arc-shaped structure, the front part of the long sliding block 4 is downwards sunken to form a sliding block upper groove 8, the sliding block upper groove 8 corresponds to the position of the torsion spring 3, the front end of the long sliding block 4 is tightly abutted against the rear side of the cam 2, the rear side of the long sliding block 4 is tightly pressed between the electric box 5 and the electric box is provided with a limit groove 10, a limit groove 11 and a limit groove 11 is arranged on the limit groove 11.

The torsion spring 3 corresponds to the position of the groove 8 on the sliding block, so that the cam 2 has enough movable space in the rotating process, and the door hook 28 is inserted into the cam 2 or pulled out through the mutual matching of the long sliding block 4, the cam 2, the upper cover plate 6 and the torsion spring 3, so that the locking and unlocking of the door hook 28 are realized, and the space is saved.

Further, the electrical box 5 includes electrical box upper cover 12, electrical box bottom box 13, ejector PIN 14, sliding frame 15, door PIN 16, coil 17, iron core 18, terminal and conducting strip 19, electrical box upper cover 12 passes through the buckle to be connected in electrical box bottom box 13's upside, ejector PIN 14, sliding frame 15, coil 17, iron core 18, terminal and conducting strip 19 set up between electrical box upper cover 12 and electrical box bottom box 13, and carry out spacing through the recess on the electrical box bottom box 13, ejector PIN 14 top is tightly between slider slope structure 9 and conducting strip 19, the lower extreme of ejector PIN 14 and slider slope structure 9 looks adaptation, slider slope structure 9's fore-and-aft movement drives ejector PIN 14 in vertical direction, the one end of conducting strip 19 contacts with ejector PIN 14, the other end is fixed in the rear portion of door PIN 16, the lower part and spacing groove 11 correspond, sliding frame 15's rear portion sets up frame slope structure 20, frame slope structure 20 and door PIN 16's front portion looks adaptation, frame slope structure 20 moves vertical movement and drives PIN 16 and upwards moves at frame 15 in the side and is followed by two terminal and 23I through the slider slope structure 9 looks adaptation, the two terminal and terminal I are connected with the terminal and 23, the terminal I is connected with the terminal and is 25, the terminal is connected with two terminal I and is provided with the terminal and is 25, the terminal is connected with the terminal I through the terminal I and the terminal II is 25, the terminal is connected with the terminal II.

The long sliding block 4 moves back and forth, and meanwhile, the sliding block slope structure 9 drives the ejector rod 14 to move up and down, so that the terminal and the coil 17 are powered on and off. Through the cooperation of spacing groove 11, frame slope structure 20 and door pin 16 to and spacing muscle 10 cooperates with the spacing arch 21 of sliding frame 15, realizes the spacing of door pin 16 to long slider 4 and the spacing of long slider 4 to sliding frame 15, thereby realizes the detection of switch door, and avoids the washing machine abnormal start or the work that leads to because of the people touches by mistake.

Further, the limit rib 10 is disposed at the left side of the limit projection 21.

Further, the lower end of the upper cover plate 6 is provided with a guide post 26, the base 1 is provided with a guide groove 27, the guide post 26 is matched with the guide groove 27, and the electric appliance box bottom box 13 is installed on the base 1 through a buckle.

Further, a sliding rail is arranged on the base 1, the sliding rail extends along the front-back direction, and the long sliding block 4 moves back and forth along the sliding rail.

Further, the slider ramp structure 9 has a structure with a high front and a low rear, and the frame ramp structure 20 has a structure with a low left and a high right.

When the small electromagnetic door lock for preventing false touch and door opening and closing detection works, when the head of the door hook 28 is inserted into the cam 2 and is in a locking state, under the action of the door hook 28, the cam 2 rotates clockwise around the cam shaft 7, the rear part of the cam 2 is positioned in the upper groove 8 of the sliding block, at the moment, the acting force of the torsion spring 3 on the cam 2 is favorable for maintaining the locking state of the door hook 28, the lower part of the door PIN 16 is inserted into the limit groove 11 to fix the long sliding block 4, meanwhile, the limit protrusion 21 of the sliding frame 15 is positioned in the groove formed between the limit rib 10 and the long sliding block 4 at the rear side and can move left and right, at the moment, the ejector rod 14 is positioned at the rear part of the sliding block slope structure 9, the conducting strip 19 is in contact with the terminal II 22, the terminal III 24 and a PIN needle 25 of the coil 17, the coil 17 is electrified, and the coil 17 drives the sliding frame 15 to move left and right through the iron core 18; when the sliding frame 15 moves leftwards, the frame slope structure 20 gradually lifts the door pin 16 upwards, the lower part of the door pin 16 moves to the upper side of the limiting groove 11, the long sliding block 4 is not limited any more, door opening detection is achieved, meanwhile, the door pin 16 drives the conducting strip 19 to move upwards, the terminal I22 is separated from the conducting strip 19, the conducting strip 19 is powered off, and therefore the coil 17 is powered off; when the sliding frame 15 moves rightwards, the frame slope structure 20 drives the door pin 16 to gradually move downwards, the lower part of the door pin 16 is inserted into the limit groove 11, the long sliding block 4 is limited, and the door closing detection is realized.

When the door hook 28 is in an unlocking state, the door hook 28 is pulled out from the head of the cam 2, the head of the cam 2 rotates anticlockwise along the cam shaft 7, the head of the cam 2 drives the long sliding block 4 to slide backwards, the long sliding block 4 drives the ejector rod 14 to move upwards through the sliding block slope structure 9, the conducting strip 19 and the PIN needle 25 are separated, the coil 17 is powered off, and the sliding frame 15 cannot be driven to move left and right through the iron core 18; meanwhile, the long sliding block 4 moves backwards to drive the limiting groove 11 and the limiting rib 10 to move backwards, so that the lower part of the door pin 16 moves to the front side of the limiting groove 11, the long sliding block 4 is not fixed any more, the limiting rib 10 moves to the inner side of the lower part of the limiting boss 21 of the sliding frame 15, at the moment, the limiting rib 10 limits the limiting boss 21, the limiting boss 21 is blocked from moving leftwards, namely the sliding frame 15 cannot move leftwards, and abnormal starting or working of the washing machine which is touched by people by mistake is avoided.

Claims (8)

1. A prevent mistake and touch and switch small-size electromagnetic door lock that door detected which characterized in that: including base (1), cam (2), torsional spring (3), long slider (4) and electrical apparatus box (5), the front portion top at base (1) is installed to cam (2), electrical apparatus box (5) are installed in the rear portion top of base (1), long slider (4) are installed at base (1) middle part and are extended along fore-and-aft direction, the front end setting of long slider (4) is between cam (2) and base (1), the rear end of long slider (4) compresses tightly between electrical apparatus box (5) and base (1), the top of cam (2) sets up upper cover plate (6), upper cover plate (6) are connected with base (1), the middle part of cam (2) is installed on upper cover plate (6) through camshaft (7), torsional spring (3) set up the rear portion at cam (2), the one end and the cam (2) of torsional spring (3) are connected, the front end of long slider (4) is the arc structure, the front end of long slider (4) is the undercut and forms slider upper groove (8), the front end setting up of long slider (4) is in the corresponding slope of side (9) of slider (4) in the position of the back side of the slope (4), the right side sets up spacing muscle (10) and spacing groove (11), and electrical apparatus box (5) and slider slope structure (9), spacing muscle (10) and spacing groove (11) looks adaptation.

2. The miniature electromagnetic door lock for preventing false touching and door opening and closing detection as claimed in claim 1, wherein: the electric appliance box (5) comprises an electric appliance box upper cover (12), an electric appliance box bottom box (13), a push rod (14), a sliding frame (15), a door pin (16), a coil (17), an iron core (18), a terminal and a conducting strip (19), wherein the electric appliance box upper cover (12) is connected to the upper side of the electric appliance box bottom box (13) through a buckle, the push rod (14), the sliding frame (15), the coil (17), the iron core (18), the terminal and the conducting strip (19) are arranged between the electric appliance box upper cover (12) and the electric appliance box bottom box (13), and limited by a groove on the electric appliance box bottom box (13), the push rod (14) is tightly propped between a sliding block slope structure (9) and the conducting strip (19), the lower end of the push rod (14) is matched with the sliding block slope structure (9), the front and back movement of the sliding block slope structure (9) drives the push rod (14) to move in the vertical direction, one end of the conducting strip (19) is contacted with the push rod (14), the other end of the coil (17) is fixed to the rear part of the door pin (16), the lower part of the pin (16) corresponds to the sliding frame (15), the front slope structure (20) is matched with the sliding frame (20), the left-right movement of the frame slope structure (20) drives the door PIN (16) to move in the vertical direction, the lower part of the sliding frame (15) is provided with a limiting protrusion (21), the limiting protrusion (21) corresponds to the limiting rib (10), the left end of the sliding frame (15) is connected with the coil (17) through the iron core (18), the terminal comprises a terminal I (22), a terminal II (23) and a terminal III (24), the terminal I (22) and the terminal II (23) are respectively contacted with the conducting strip (19), the coil (17) is provided with two PIN needles (25), one PIN needle (25) is connected with the terminal III (24), and the other PIN needle (25) is contacted with the conducting strip (19) through the contact.

3. The miniature electromagnetic door lock for preventing false touching and door opening and closing detection as claimed in claim 1, wherein: the limiting rib (10) is arranged on the left side of the limiting protrusion (21).

4. The miniature electromagnetic door lock for preventing false touching and door opening and closing detection as claimed in claim 1, wherein: the lower end of the upper cover plate (6) is provided with a guide post (26), the base (1) is provided with a guide groove (27), and the guide post (26) is matched with the guide groove (27).

5. The miniature electromagnetic door lock for preventing false touching and door opening and closing detection as claimed in claim 2, wherein: the electric appliance box bottom box (13) is installed on the base (1) through a buckle.

6. The miniature electromagnetic door lock for preventing false touching and door opening and closing detection as claimed in claim 1, wherein: the base (1) is provided with a sliding rail, the sliding rail extends along the front-back direction, and the long sliding block (4) moves back and forth along the sliding rail.

7. The miniature electromagnetic door lock for preventing false touching and door opening and closing detection as claimed in claim 1, wherein: the sliding block slope structure (9) is a structure with a high front part and a low rear part.

8. The miniature electromagnetic door lock for preventing false touching and door opening and closing detection as claimed in claim 2, wherein: the frame slope structure (20) is a structure with low left and high right.