CN104567383B - A kind of have the universal electric furnace reported to the police with fingerprint identification function - Google Patents

Abstract

The invention discloses a universal electric furnace with functions of alarm and fingerprint identification, which comprises a universal electric furnace, an annular protective cover, a cover, a fingerprint identifier, a control unit, a locking mechanism, a temperature sensor and a buzzer; the lock The tightening mechanism includes a micro-stepping motor, a lead screw and a locking block; after the fingerprint reader recognizes the user's identity information, it sends an instruction to start the micro-stepping motor to the control unit, and the control unit controls the forward rotation of the micro-stepping motor , when it rotates forward, the output shaft of the motor drives the lead screw to rotate synchronously. Since the installation groove restricts the rotation of the locking block, the locking block withdraws from the positioning locking groove. When the locking block completely enters the installation groove, the sealing The cover loses the restriction of the locking pin, and the user can operate the universal electric furnace after pushing the cover horizontally. This time, the use information is recorded by the fingerprint reader and uploaded to the external host computer, thereby realizing the universal electric furnace Information operation management.

Description

A kind of universal electric stove with functions of alarm and fingerprint recognition

technical field

The invention relates to a universal electric furnace, in particular to a universal electric furnace with alarm and fingerprint identification functions, belonging to the technical field of mechanical structures.

Background technique

At present, large-scale construction quality inspection companies need to use various types of test instruments to sample, analyze and inspect buildings when conducting inspection tests, such as using a universal electric furnace to heat and sample samples for analysis.

The operator needs to fill in the operation record after each test operation, which includes the opening time of the instrument and the number of times of use. Due to the level and sense of responsibility of the operator, there are often cases of forgetting or omissions, which makes the test There are hidden dangers in data and equipment management, which is not conducive to the realization of scientific test equipment management.

Contents of the invention

In view of this, the present invention provides a universal electric furnace with functions of alarm and fingerprint recognition, which can realize the opening of the cover through the function of fingerprint recognition, and realize the information management of the operation of the electric furnace.

A universal electric stove with alarm and fingerprint identification functions, comprising a universal electric stove, a protective cover, a cover, a fingerprint reader, a control unit, a locking mechanism, a temperature sensor and a buzzer;

Wherein, the locking mechanism includes a micro-stepping motor, a lead screw and a locking block, the output shaft of the micro-stepping motor is fixedly connected to the lead screw, the locking block and the lead screw are threaded, and the locking block is connected to the ten thousand Sliding fit with the installation groove on the electric furnace shell;

The protective cover is a rectangular shell structure, and its upper and lower bottom surfaces are open structures. One open end of the protective cover is fixedly connected to the shell of the universal electric furnace at the position corresponding to the electric furnace switch. Two opposite sides of the protective cover at one end A symmetrical chute is processed on the side wall, and the chute is slidably matched with the cover. When the cover slides from the entrance end of the chute to the end, the other open end of the protective cover is completely closed; the end of the chute A mounting groove is processed on the side wall of the mounting groove, and a micro stepping motor, a lead screw and a locking block are installed in sequence at the bottom of the mounting groove. When the micro stepping motor is not powered on, the head of the locking block is located outside the mounting groove and Cooperate with the positioning locking groove on the protective cover to lock the protective cover on the shell of the universal electric furnace; the micro stepping motor is connected with the circuit inside the universal electric furnace through the control unit; the fingerprint reader is fixedly installed on the outer wall of the universal electric furnace Above, the fingerprint reader recognizes the identity information of the user and transmits the instruction information to the control unit, and the control unit controls the on-off of the micro-stepping motor and the internal circuit of the universal electric furnace;

The temperature sensor is installed inside the universal electric furnace, and the temperature sensor feeds back the internal temperature value of the universal electric furnace in real time. If the internal temperature of the universal electric furnace exceeds the set value, the buzzer sends out an alarm signal.

Further, in order to better guide and position the locking block and the positioning and locking groove, the head of the locking block has a tapered structure, and the positioning and locking groove is a tapered groove.

Working principle: Before using the universal electric furnace, the user puts his finger on the fingerprint reader. After the fingerprint reader recognizes the user's identity information, it sends the command to start the micro-stepping motor to the control unit, and the control unit controls the micro-stepper. Enter the forward rotation of the motor. When it rotates forward, the output shaft of the motor drives the screw to rotate synchronously. Since the installation groove restricts the rotation of the locking block, the locking block can only move inward along the installation groove in a straight line. When the locking block completely enters the installation groove, the cover loses the restriction of the locking pin, and the user can operate the universal electric furnace after pushing the cover horizontally. The use information this time is provided by the fingerprint reader. Record and upload to the external host computer, thereby realizing the information operation and management of the universal electric furnace.

Beneficial effect:

(1) The switch of the present invention can realize the opening of the protective cover through the function of fingerprint identification, and can realize the information management of the operation of the electric furnace. On the one hand, it can record the time and frequency of use of the universal electric furnace by the operator, so as to facilitate the verification of subsequent experimental data and the search of the person in charge; on the other hand, only those whose fingerprints are in the fingerprint library can pass fingerprint identification and open the protective cover , Put an end to the illegal operation of the instrument by non-professionals.

(2) The universal electric furnace of the present invention has an alarm function. When the internal temperature of the universal electric furnace exceeds the set value, the buzzer sends out an alarm signal, which can reduce the occurrence of safety accidents.

(3) The switch with fingerprint recognition described in the present invention has a simple structure and is easy to implement, and can be extended to the field of the Internet of Things to realize information management of conventional instruments.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Figure 2 is a schematic diagram of the cooperation of the cover and the protective cover;

Figure 3 is a schematic diagram of the locking mechanism.

Among them, 1-universal electric furnace, 2-protective cover, 3-fingerprint reader, 4-cover, 5-locking block, 6-miniature stepping motor, 7-lead screw, 8-chute, 9-bee ringer.

detailed description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

The present invention provides a universal electric furnace with alarm and fingerprint identification functions, its structural schematic diagram is shown in Figure 1, including a universal electric furnace 1, an annular protective cover 2, a cover 4, a fingerprint reader 3, a control unit, a lock tightening mechanism, temperature sensor and buzzer9.

Wherein, the protective cover is a rectangular shell structure, the upper and lower bottom surfaces of which are open structures, one open end of the protective cover is fixedly connected to the position of the electric furnace switch on the shell of the universal electric furnace 1, and one end of the protective cover Symmetrical chute 8 is processed on the two opposite side walls of the chute, and the chute 8 is slidably matched with the cover 4. When the cover 4 slides from the entrance end of the chute 8 to the end, the other open end of the protective cover is Completely closed; as shown in Figure 2. The side wall at the end of the chute 8 is processed with an installation groove, and the bottom of the installation groove is successively equipped with a micro stepping motor 6, a leading screw 7 and a locking block 5, as shown in Figure 3 . When the miniature stepping motor 6 is not powered, the head of the locking block 5 is located outside the installation groove and cooperates with the positioning locking groove on the protective cover 2 to lock the protective cover 2 on the universal electric furnace 1 shell; The micro stepper motor 6 is connected to the circuit inside the universal electric furnace 1 through the control unit; the fingerprint reader 3 is fixedly installed on the outer wall of the universal electric furnace 1, and the fingerprint reader 3 recognizes the identity information of the user and transmits the instruction information to A control unit, the control unit controls the on-off of the micro-stepping motor 6 and the internal circuit of the universal electric furnace 1;

The temperature sensor is installed inside the universal electric furnace 1, and the temperature sensor feeds back the internal temperature value of the universal electric furnace 1 in real time. If the internal temperature of the universal electric furnace 1 exceeds a set value, the buzzer 9 sends an alarm signal.

Working principle: the user puts his finger on the fingerprint reader 3 before using the universal electric furnace 1, and after the fingerprint reader 3 recognizes the user's identity information, it sends the command to start the micro stepping motor 6 to the control unit, and the control unit The unit controls the forward rotation of the micro stepping motor 6. When it rotates forward, the output shaft of the motor drives the screw 7 to rotate synchronously. Since the installation groove limits the rotation of the locking block 5, the locking block 5 can only move inward along the installation groove. Moving in a straight line, the locking block 5 withdraws from the positioning locking groove. When the locking block 5 completely enters the installation groove, the cover 4 loses the restriction of the locking block 5. After the user pushes the cover 4 horizontally, it can The electric furnace is used for operation, and the usage information is recorded by the fingerprint reader 3 and uploaded to an external host computer, thereby realizing information-based operation and management of the universal electric furnace 1 .

To sum up, the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (2)

1. one kind has the universal electric furnace reported to the police with fingerprint identification function; it is characterized in that, including: universal electric furnace (1), ring protection cover (2), capping (4), Fingerprint Identification Unit (3), control unit, retaining mechanism, temperature sensor and buzzer (9)；

Wherein, described retaining mechanism includes micro-step motor (6), leading screw (7) and latch segment (5), the output shaft of described micro-step motor (6) is fixing with leading screw (7) to be connected, latch segment (5) and leading screw (7) are threaded engagement, and latch segment (5) is slidably matched with the mounting groove on universal electric furnace (1) housing；

Described protective cover is rectangular case structure; on it, bottom surface is opening structure; one open end of described protective cover is fixedly connected on the shell of universal electric furnace (1) position of corresponding electric stove switch; the chute (8) of symmetry it is machined with in the two opposite side walls of described protective cover one end; described chute (8) is slidably matched with capping (4), and another open end of protective cover was completely enclosed when the arrival end of chute (8) slides into end by described capping (4)；It is machined with mounting groove on the sidewall of described chute (8) end; the bottom of mounting groove is sequentially installed with micro-step motor (6), leading screw (7) and latch segment (5); protective cover (2), under being not powered on state, is locked on universal electric furnace (1) shell outside the head of latch segment (5) is positioned at mounting groove and with the positioning and locking slot fit on protective cover (2) by micro-step motor (6)；Described micro-step motor (6) is connected by the circuit that control unit is internal with universal electric furnace (1)；Fingerprint Identification Unit (3) is fixedly mounted on the outer wall of universal electric furnace (1), Fingerprint Identification Unit (3) sends command information to control unit after identifying the identity information of user, and control unit controls the break-make of micro-step motor (6) and universal electric furnace (1) internal circuit；

It is internal that described temperature sensor is arranged on universal electric furnace (1), temperature sensor Real-time Feedback universal electric furnace (1) internal temperature values, if universal electric furnace (1) internal temperature exceedes setting value, buzzer (9) sends alarm signal.

A kind of have the universal electric furnace reported to the police with fingerprint identification function, it is characterised in that the head of described latch segment (5) is pyramidal structure；Described positioning and locking groove is cone tank.