An explosion-proof printing terminal

Abstract

The present invention belongs to the technical field of printing equipment, and discloses an explosion-proof printing terminal, including a box assembly, a printing device, an inflation control device, and a pressure detection device. The box assembly includes a printing box and a paper taking box. The printing device is installed in the printing box for printing paper. The inflation control device and the pressure detection device are both installed on the box assembly. The inflation control device is used to adjust the inflation pressure filled in the printing box. The pressure detection device is used to detect the air pressure in the printing box. A first isolation plate is provided between the printing box and the paper taking box. The first isolation plate is provided with a paper drop opening. A blocking device is rotatably provided in the paper taking box, and the blocking device is used to block the paper drop opening. The inflation control device of the present invention can control the air pressure of the gas input into the printing box to ensure that the air pressure in the printing box remains within a preset range.

Description

Technical Field

[0001] The present invention relates to the technical field of printing equipment, and in particular to an explosion-proof printing terminal. Background Art

[0002] As environmental supervision is gradually strengthened, the demand for hazardous waste disposal has increased again, especially requiring hazardous waste disposal to enter standardized channels. In some hazardous waste production lines, there are more dusty and explosive environments. Ordinary electronic equipment is prone to explosion hazards. Existing hazardous waste terminals cannot work at some production line terminals. For example, printers are daily electronic office equipment and often need to run. In some production environments, there is a lot of dust. Existing printers working in dusty environments are prone to explosion accidents, especially when the printer's paper outlet is opened to take out paper. The sudden change in air pressure in the printer will cause dust to rise, and the printer's power supply will become an ignition source, prompting the occurrence of dust explosions. Therefore, existing printers are not suitable for working in dusty environments. Summary of the invention

[0003] An object of the present invention is to provide an explosion-proof printing terminal capable of controlling the air pressure in a printing box to meet the use requirements in dust-explosive environments.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] An explosion-proof printing terminal, comprising:

[0006] A box assembly, the box assembly comprising a printing box and a paper removal box;

[0007] A printing device, installed in the printing box, for printing paper;

[0008] An inflation control device, mounted on the box assembly, for adjusting the inflation pressure of the air filled into the printing box;

[0009] A pressure detection device is installed on the box assembly and is used to detect the air pressure in the printing box. A first isolation plate is provided between the printing box and the paper taking box. The first isolation plate is provided with a paper drop opening. A sealing device is rotatably provided in the paper taking box, and the sealing device is used to block the paper drop opening.

[0010] As an optional technical solution, the pressure detection device includes an air pressure detection gauge and an inflation air pressure gauge, and the inflation air pressure gauge is used to detect the air pressure of the input gas of the air supply system.

[0011] As an optional technical solution, the explosion-proof printing terminal also includes an explosion-proof control box, which is installed outside the box assembly. A control device is provided in the explosion-proof control box, and the control device is used to control the operation of the explosion-proof system.

[0012] As an optional technical solution, an indication device is also installed on the explosion-proof control box, and the indication device includes a power supply indicator light and an alarm indicator light. The power supply indicator light is used to indicate the power supply status of the electrical components installed in the explosion-proof printing terminal, and the alarm indicator light is used to indicate the air pressure status in the printing box.

[0013] As an optional technical solution, a power supply device is provided in the explosion-proof control box, and the power supply device is used to provide power to the electrical components installed on the explosion-proof printing terminal.

[0014] As an optional technical solution, a paper supply device is further provided in the printing box, and the paper supply device is used to provide paper for the printing device.

[0015] As an optional technical solution, the printing box includes an opening plate and a first frame body, one side of the first frame body is provided with an installation avoidance opening, the opening plate is rotatably installed on the side of the first frame body provided with the installation avoidance opening, and the paper supply device and the printing device are both installed in the first frame body.

[0016] As an optional technical solution, a display device and a signal input device are installed on the opening panel, the signal input device is used to input printing information, and the display device is used to display printing information.

[0017] As an optional technical solution, a first sensing device is further provided in the printing box, and the first sensing device is used to detect whether the opening plate has blocked the installation avoidance opening.

[0018] As an optional technical solution, a lock is further provided on the first frame, and the lock is located at one side of the installation avoidance opening. The lock can lock the opening plate to the installation avoidance opening.

[0019] As an optional technical solution, a signal receiving device is also provided on the box assembly, and the signal receiving device is used to receive an external printing instruction.

[0020] As an optional technical solution, the signal receiving device is also provided with an explosion-proof protective shell.

[0021] As an optional technical solution, the explosion-proof printing terminal is also provided with a camera device, which is used for scanning codes and / or taking photos.

[0022] As an optional technical solution, the blocking device includes a blocking plate, a first hinge assembly and a handle. The blocking plate is rotatably installed on the first isolation plate, and the handle is rotatably installed through the side wall of the paper removal box. One end of the first hinge assembly is rotatably hinged to one end of the handle extending into the paper removal box, and the other end of the first hinge assembly is rotatably connected to the blocking plate.

[0023] As an optional technical solution, a paper removal port is provided on the side wall of the paper removal box, and a paper removal baffle is rotatably installed at the paper removal port. The inner wall of the paper removal baffle is provided with a locking position. The blocking device also includes a second hinge assembly and a locking hook. One end of the second hinge assembly is rotatably hinged to one end of the handle extending into the paper removal box, and the other end of the second hinge assembly is rotatably connected to the locking hook. The locking hook can be locked in the locking position of the paper removal baffle.

[0024] As an optional technical solution, a second sensing device is further provided in the paper taking box, and the second sensing device is used to detect whether the paper taking baffle has been blocked at the paper taking port.

[0025] As an optional technical solution, the paper dispensing box is provided with a perspective window for observing the situation inside the paper dispensing box through perspective.

[0026] The beneficial effects of the present invention are:

[0027] The explosion-proof printing terminal provided by the present invention includes a box assembly, and an inflation control device can control the air pressure of the gas input into the printing box to ensure that the air pressure in the printing box is maintained within a preset range, thereby preventing the toner in the printing device from exploding due to dust; after printing by the printing device, the paper is transferred from the paper drop port to the paper pickup box, and the sealing device is rotated before the paper is picked up to seal the paper drop port, thereby preventing the air pressure in the printing box from dropping rapidly when the paper pickup box is opened to pick up paper, thereby preventing the dust in the working environment from being blown up and spread or the dust from being sucked into the printing box to cause an explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described in detail below based on the accompanying drawings and embodiments;

[0029] Figure 1 This is a schematic structural diagram of the explosion-proof printing terminal according to the embodiment from a first perspective;

[0030] Figure 2 A schematic diagram of the structure of the explosion-proof printing terminal according to the embodiment from a second viewing angle;

[0031] Figure 3 It is a front view of the explosion-proof printing terminal described in the embodiment;

[0032] Figure 4 for Figure 3A cross-sectional view of section AA is shown;

[0033] Figure 5 for Figure 4 A local enlarged view shown at position B;

[0034] Figure 6 It is a structural explosion diagram of the explosion-proof printing terminal described in the embodiment.

[0035] Figures 1 to 6 middle:

[0036] 1. Box assembly; 101. Print box; 1011. Opening plate; 1012. First frame; 102. Paper removal box; 1021. Paper removal baffle; 2. Explosion-proof control box; 3. Printing device; 4. Inflation control device; 5. Pressure detection device; 51. Air pressure detection gauge; 52. Inflation pressure gauge; 6. First isolation plate; 61. Paper drop port; 7. Sealing device; 71. Sealing plate; 72. First hinge assembly; 73. Handle; 74. Second hinge assembly; 75. Lock hook; 8. Control device; 9. Power supply device; 10. Indication device; 11. Paper supply device; 12. Display device; 13. Signal input device; 14. First sensing device; 15. Lock; 16. Explosion-proof protective shell; 17. Camera device. DETAILED DESCRIPTION

[0037] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", etc., and the like, are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0041] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0042] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0043] In some dusty environments, an exposed printer is very likely to become an ignition source for a dust explosion when in operation. The toner used in the printer itself is also flammable, which can easily cause an explosion in the enclosed space inside the printer, leading to a series of production safety accidents.

[0044] like Figures 1 to 6As shown, in order to solve the above problems, the present embodiment provides an explosion-proof printing terminal, which includes a box assembly 1, a printing device 3, an inflation control device 4 and a pressure detection device 5. The box assembly 1 includes a printing box 101 and a paper taking box 102. The printing box 101 is located above the paper taking box 102. The printing device 3 is installed in the printing box 101 for printing paper. The inflation control device 4 and the pressure detection device 5 are both installed on the box assembly 1. The inflation control device 4 is used to adjust the inflation pressure filled in the printing box 101. The pressure detection device 5 is used to detect the air pressure in the printing box 101. A first isolation plate 6 is arranged between the printing box 101 and the paper taking box 102. The first isolation plate 6 is provided with a paper drop port 61. A blocking device 7 is rotatably arranged in the paper taking box 102. The blocking device 7 is used to block the paper drop port 61.

[0045] The explosion-proof printing terminal also includes an explosion-proof control box 2, which is installed outside the box assembly 1. A control device 8 is provided in the explosion-proof control box 2. The control device 8 is used to control the operation of the explosion-proof system, such as the air supply system, the power adapter in the explosion-proof control box 2, the inflation control device 4, and the pressure detection device 5.

[0046] The inflation control device 4 and the pressure detection device 5 will not generate electric sparks or dangerous temperatures during normal operation, so the inflation control device 4 and the pressure detection device 5 can be arranged outside the printing box 101.

[0047] Specifically, the control device 8 is a PLC, which is prone to generate static electricity. The PLC is installed in the explosion-proof control box 2 to isolate the PLC from the print box 101, thereby preventing the PLC from becoming an ignition source that triggers the toner explosion in the printing device 3; the pressure detection device 5 includes an air pressure detection gauge 51 and an inflation air pressure gauge 52. The air pressure detection gauge 51 can detect whether the air pressure in the print box 101 is maintained within a preset range. When the air pressure in the print box 101 is not within the preset range, the control device 8 controls the air supply system to input gas, and the inflation air pressure gauge 52 can detect the air pressure of the input gas of the air supply system. When the air pressure does not meet the preset requirements, the pressure gauge 52 is adjusted. The inflation control device 4 can change the air pressure value of the input gas of the air supply system to ensure that the air pressure in the printing box 101 is maintained within a preset range, so as to prevent the toner in the printing device 3 from causing a dust explosion in the internal space of the printing box 101, or the dust from the outside from entering the printing box 101 and causing an explosion; after the printing device 3 has finished printing, the paper falls from the paper drop port 61 into the paper pick-up box 102, and the blocking device 7 is rotated before the paper is picked up to block the paper drop port 61, so as to prevent the air pressure in the printing box 101 from dropping rapidly when the paper pick-up box 102 is opened to pick up the paper, causing the dust in the working environment to be raised and spread, thereby preventing the dust in the working environment from causing a dust explosion. The specific structures of the printing device 3, the inflation control device 4, the air pressure detection meter 51 and the inflation pressure meter 52 can all refer to the prior art, and will not be described in detail in this embodiment.

[0048] like Figure 4 As shown, in the present embodiment, a power supply device 9 is provided in the explosion-proof control box 2, and the power supply device 9 is used to provide power to the electrical components respectively installed in the box assembly 1 and the explosion-proof control box 2. The electrical components in the box assembly 1 include the above-mentioned printing device 3, the inflation control device 4 and the pressure detection device 5, and the electrical components in the explosion-proof control box 2 include the above-mentioned PLC. The power supply device 9 is installed in the explosion-proof control box 2 and isolated from the printing box 101, so that the flammable and explosive mixed gas substances and dust in the external environment cannot contact the electric sparks or dangerous temperatures generated by the electrical components in the printing box 101 or the explosion-proof control box 2 during normal operation, thereby achieving the purpose of electrical explosion-proof.

[0049] In this embodiment, an indicator device 10 is also installed on the explosion-proof control box 2. The indicator device 10 includes a power indicator light and an alarm indicator light. The power indicator light is used to indicate the power supply status of the electrical components installed in the explosion-proof printing terminal, and the alarm indicator light is used to indicate the air pressure status in the printing box 101. Optionally, two power indicator lights are provided, one of which is used to indicate the power supply status of the electrical components installed in the printing box 101, and the other is used to indicate the power supply status of the electrical components installed in the explosion-proof control box 2. When the air pressure in the printing box 101 is within a preset range, the alarm indicator light turns green, and when the air pressure in the printing box 101 is outside the preset range, the alarm indicator light turns red.

[0050] In this embodiment, a paper supply device 11 is further provided in the printing box 101, and the paper supply device 11 is used to provide paper for the printing device 3. The specific structure of the paper supply device 11 can refer to the prior art, and will not be described in detail in this embodiment.

[0051] In this embodiment, the printing box 101 includes an opening plate 1011 and a first frame 1012. A mounting avoidance opening is provided on one side of the first frame 1012. The opening plate 1011 is rotatably mounted on the side of the first frame 1012 where the mounting avoidance opening is provided. The paper supply device 11 and the printing device 3 are both installed in the first frame 1012. The mounting avoidance opening is provided on the first frame 1012 to facilitate the disassembly and assembly of the electrical components in the printing box 101. The opening plate 1011 can open or block the mounting avoidance opening to ensure that the outside world cannot interfere with the operation of the electrical components in the printing box 101.

[0052] In this embodiment, a lock buckle 15 is further provided on the first frame 1012, and the lock buckle 15 is located on one side of the installation avoidance opening, and the lock buckle 15 can lock the opening plate 1011 to the installation avoidance opening. Optionally, a plurality of lock buckles 15 are provided, and lock buckles 15 are installed on both sides of the installation avoidance opening.

[0053] Optionally, a signal receiving device is also provided on the box assembly 1, and the signal receiving device is used to receive an external printing instruction. The signal receiving device is an antenna, and a user can send a printing instruction remotely, and the antenna is used to receive the printing instruction.

[0054] Optionally, the signal receiving device is further provided with an explosion-proof protective shell 16, which is made of plastic material and can ensure that the antenna can stably receive signals while preventing the antenna from becoming an ignition source.

[0055] Optionally, the explosion-proof printing terminal is provided with a camera 17, which is used for scanning and / or photographing. The camera 17 has a face recognition function, can record the operator, and can also photograph or scan the scene.

[0056] In this embodiment, a first sensing device 14 is further provided in the printing box 101, and the first sensing device 14 is used to detect whether the opening plate 1011 has blocked the installation avoidance opening. The paper supply device 11 of this embodiment needs to frequently provide new paper, so the opening plate 1011 needs to be opened frequently. After the paper supply device 11 updates the paper, the first sensing device 14 can detect whether the opening plate 1011 has blocked the sealed installation avoidance opening, thereby preventing the printing device 3 from printing paper when the printing box 101 is not yet sealed and preventing the inflation control device 4 from inflating when the printing box 101 is not yet sealed. Optionally, the specific structure of the first sensing device 14 can refer to the prior art, and this embodiment will not be repeated one by one.

[0057] In this embodiment, a display device 12 and a signal input device 13 are installed on the opening plate 1011. The signal input device 13 is used to input printing information, and the display device 12 is used to display printing information. The signal input device 13 includes a keyboard and / or a mouse, and the display device 12 includes a display screen.

[0058] In this embodiment, the blocking device 7 includes a blocking plate 71, a first hinge assembly 72 and a handle 73. The blocking plate 71 is rotatably mounted on the first isolation plate 6 and is used to block or open the paper drop opening 61 on the first isolation plate 6. The handle 73 is rotatably penetrated and installed on the side wall of the paper dispensing box 102. One end of the first hinge assembly 72 is rotatably hinged with one end of the handle 73 extending into the paper dispensing box 102, and the other end of the first hinge assembly 72 is rotatably connected to the blocking plate 71. Manually rotating the handle 73 can cause the first hinge assembly 72 to drive the blocking plate 71 to open or block the paper drop opening 61; exposing one end of the handle 73 to the outer wall of the paper dispensing box 102 facilitates the operator to identify the rotation position of the handle 73.

[0059] The side wall of the paper taking box 102 is provided with a paper taking port, and a paper taking baffle 1021 is rotatably installed at the paper taking port, and a snap-in position is provided on the inner wall of the paper taking baffle 1021. Optionally, the blocking device 7 further includes a second hinge assembly 74 and a lock hook 75, one end of the second hinge assembly 74 is rotatably hinged to one end of the handle 73 extending into the paper taking box 102, and the other end of the second hinge assembly 74 is rotatably connected to the lock hook 75, and the lock hook 75 can be snap-into the snap-in position of the paper taking baffle 1021. When the operator needs to push the paper removal baffle 1021 to take out the printed paper in the paper removal box 102, he must first turn the handle 73. The handle 73 drives the first hinge assembly 72 and the second hinge assembly 74 to rotate simultaneously. The first hinge assembly 72 drives the blocking plate 71 to block the paper drop port 61, and the second hinge assembly 74 drives the locking hook 75 to disengage from the engaging position of the paper removal baffle 1021, so as to prevent the operator from forgetting to turn the handle 73 to block the paper drop port 61 when taking paper, thereby causing the air pressure in the printing box 101 to drop rapidly. When the handle 73 is turned in the opposite direction, the locking hook 75 will be engaged with the engaging position of the paper removal baffle 1021, and the blocking plate 71 will leave the paper drop port 61, so that the printed paper can be transferred to the paper removal box 102.

[0060] Optionally, a second sensing device is further provided in the paper taking box 102, and the second sensing device is used to detect whether the paper taking baffle 1021 has been blocked at the paper taking port.

[0061] The paper taking box 102 is provided with a perspective window for perspectively observing the situation in the paper taking box 102. Preferably, the perspective window is provided on the paper taking baffle 1021, and at least a part of the paper taking baffle 1021 is made of a transparent material, such as transparent glass.

[0062] Optionally, the explosion-proof printing terminal further includes a support frame and casters, the explosion-proof control box is installed on the support frame, and the casters are installed at the bottom of the support frame.

[0063] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An explosion-proof printing terminal, characterized in that: include: A box assembly, the box assembly comprising a printing box and a paper removal box; A printing device, installed in the printing box, for printing paper; An inflation control device, mounted on the box assembly, for adjusting the inflation pressure of the air filled into the printing box; A pressure detection device is installed on the box assembly and is used to detect the air pressure in the printing box. A first isolation plate is provided between the printing box and the paper taking box. The first isolation plate is provided with a paper drop opening. A blocking device is rotatably provided in the paper taking box and is used to block the paper drop opening. The blocking device comprises a blocking plate, a first hinge assembly and a handle, wherein the blocking plate is rotatably mounted on the first isolation plate, the handle is rotatably penetrated and mounted on the side wall of the paper dispensing box, one end of the first hinge assembly is rotatably hinged to the end of the handle extending into the paper dispensing box, and the other end of the first hinge assembly is rotatably connected to the blocking plate; A paper removal opening is provided on the side wall of the paper removal box, and a paper removal baffle is rotatably installed at the paper removal opening. A snap-in position is provided on the inner wall of the paper removal baffle. The blocking device also includes a second hinge assembly and a lock hook. One end of the second hinge assembly is rotatably hinged to one end of the handle extending into the paper removal box, and the other end of the second hinge assembly is rotatably connected to the lock hook, and the lock hook can be snap-fitted to the snap-in position of the paper removal baffle.

2. The explosion-proof printing terminal according to claim 1, characterized in that: The pressure detection device comprises an air pressure detection gauge and an air inflation pressure gauge, and the air inflation pressure gauge is used to detect the air pressure of the input gas of the air supply system.

3. The explosion-proof printing terminal according to claim 1, characterized in that: The explosion-proof printing terminal further comprises an explosion-proof control box, which is installed outside the box assembly. A control device is arranged inside the explosion-proof control box, and the control device is used to control the operation of the explosion-proof system.

4. The explosion-proof printing terminal according to claim 3, characterized in that: The explosion-proof control box is also equipped with an indicator device, which includes a power indicator light and an alarm indicator light. The power indicator light is used to indicate the power supply status of the electrical components installed in the explosion-proof printing terminal, and the alarm indicator light is used to indicate the air pressure status in the printing box.

5. The explosion-proof printing terminal according to claim 3, characterized in that: A power supply device is arranged in the explosion-proof control box, and the power supply device is used to provide power to the electrical components installed on the explosion-proof printing terminal.

6. The explosion-proof printing terminal according to claim 1, characterized in that: A paper supply device is also provided in the printing box, and the paper supply device is used to provide paper for the printing device.

7. The explosion-proof printing terminal according to claim 6, characterized in that: The printing box includes an opening plate and a first frame body, one side of the first frame body is provided with an installation avoidance opening, the opening plate is rotatably installed on the side of the first frame body provided with the installation avoidance opening, and the paper supply device and the printing device are both installed in the first frame body.

8. The explosion-proof printing terminal according to claim 7, characterized in that: A display device and a signal input device are installed on the opening plate, wherein the signal input device is used to input printing information, and the display device is used to display printing information.

9. The explosion-proof printing terminal according to claim 7, characterized in that: A first sensing device is also provided in the printing box, and the first sensing device is used to detect whether the opening plate has blocked the installation avoidance opening.

10. The explosion-proof printing terminal according to claim 7, characterized in that: The first frame is also provided with a lock buckle, which is located at one side of the installation avoidance opening, and the lock buckle can lock the opening plate to the installation avoidance opening.

11. The explosion-proof printing terminal according to claim 1, characterized in that: The box assembly is also provided with a signal receiving device, and the signal receiving device is used to receive external printing instructions.

12. The explosion-proof printing terminal according to claim 11, characterized in that: The signal receiving device is also covered with an explosion-proof protective shell.

13. The explosion-proof printing terminal according to claim 1, characterized in that: The explosion-proof printing terminal is also provided with a camera device, which is used for scanning codes and / or taking photos.

14. The explosion-proof printing terminal according to claim 1, characterized in that: A second sensing device is also provided in the paper taking box, and the second sensing device is used to detect whether the paper taking baffle has been blocked at the paper taking port.

15. The explosion-proof printing terminal according to claim 1, characterized in that: The paper dispensing box is provided with a perspective window for observing the situation inside the paper dispensing box.

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