CN116912995A

CN116912995A - Automatic vending machine for chemicals

Info

Publication number: CN116912995A
Application number: CN202310912230.4A
Authority: CN
Inventors: 楼星融; 刘欢; 丁传柱
Original assignee: Misumi China Precision Machinery Trading Co ltd
Current assignee: Misumi China Precision Machinery Trading Co ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2023-10-20

Abstract

The application aims to provide a chemical vending machine, which can prevent an impact ignition source from being generated due to falling of articles in the process of storage and vending, can centralize electric elements and completely separate the electric elements from a storage chamber through a safety partition plate, realizes automatic management of storage and vending of dangerous chemicals, and meanwhile, the storage chamber in the vending machine can meet the storage requirement of the dangerous chemicals. The chemical vending machine includes: the anti-explosion safety cabinet comprises a cabinet main body, a cabinet door, a weighing sensor, an anti-explosion electric box and a safety partition plate. The cabinet body is provided with a storage cavity, and the storage cavity is separated by a built-in bearing plate to form a multi-layer storage grid; the cabinet door is arranged corresponding to the opening of the storage cavity; the weighing sensors are correspondingly arranged in the bearing plates below each storage grid; the explosion-proof electrical box is arranged at the upper end of the cabinet main body and is internally provided with an electric control device of a weighing sensor; and a safety partition plate is also arranged between the explosion-proof electrical box and the storage cavity.

Description

Automatic vending machine for chemicals

Technical Field

The application relates to the field of chemical storage, in particular to a chemical vending machine.

Background

Dangerous chemicals refer to highly toxic chemicals and other chemicals which have the properties of poisoning, corrosion, explosion, combustion supporting and the like and are harmful to human bodies, facilities and environment. The storage of dangerous chemicals mainly divide into a large amount of storage in the mill and deposit and sell the small-scale in the cabinet and deposit, wherein, in selling of dangerous chemicals, consider the needs that conveniently take, generally adopt to have great opening and can sort the cabinet of selling of placing the chemical and deposit to need sell the cabinet and have higher security. Particularly, for some flammable and explosive dangerous chemicals, it is necessary to avoid ignition sources in the space communicated with the chemical vending machine while facilitating the taking of the dangerous chemicals by users. Common ignition sources include open fire, chemical reaction heat, heat radiation, high-temperature surfaces, friction and impact, and the conditions of exposed high-current electrical components, human static electricity, severe collision and the like can generate the ignition sources with enough energy.

Some dangerous chemical vending machines capable of explosion prevention are proposed in the prior art, for example, patent CN214964067U proposes a double-sided explosion-proof vending cabinet, which comprises a container composed of a shell, a front door and a rear door, wherein the front door and the rear door are both provided with a goods taking port, a plurality of explosion-proof boxes are arranged in the container body to place electric appliances, and meanwhile, spring-type rails are utilized to carry out automatic goods discharging.

However, the spring type rail collides with the wall of the cabinet body during shipment, and a plurality of electrical appliances (a heat preservation unit, an explosion-proof motor, a motor drive and the like) in the cabinet body and dangerous chemicals are arranged in the same space, and the electrical appliances and the dangerous chemicals can become potential ignition sources, so that the chemical vending machine in the prior art is not suitable for storage and vending requirements of dangerous chemicals, particularly flammable and explosive dangerous chemicals.

Disclosure of Invention

The application aims to provide a chemical vending machine which can automatically manage the inventory and vending of dangerous chemicals, and meanwhile, the storage chamber inside the vending machine can meet the storage requirement of dangerous chemicals.

The chemical vending machine includes: the anti-explosion safety cabinet comprises a cabinet main body, a cabinet door, a weighing sensor, an anti-explosion electric box and a safety partition plate. The cabinet body is provided with a storage cavity, and the storage cavity is separated by a built-in bearing plate to form a multi-layer storage grid; the cabinet door is arranged corresponding to the opening of the storage cavity; the weighing sensors are correspondingly arranged in the bearing plates below each storage grid; the explosion-proof electrical box is arranged at the upper end of the cabinet main body and is internally provided with an electric control device connected with a weighing sensor; and a safety partition plate is also arranged between the explosion-proof electrical box and the storage cavity.

According to the technical scheme of the application, a user can directly open the cabinet door and take the chemicals on the storage grid through the opening of the storage cavity, the electronic control device receives the weight change condition sent by the weighing sensor in the explosion-proof electrical box and counts the weight change condition, which one or more chemicals are taken by the user, the change of the stock of the chemicals in the cabinet can be carried out according to the taken number, and the chemical order taken by the user can be obtained according to the change of the number of the chemicals, so that the automatic management of storing and selling of the chemicals is completed, in the processes of storing and selling, the user directly takes the chemicals, so that an impact ignition source is not generated due to falling of the chemicals, the electrical components are intensively arranged and are completely separated from the storage cavity through the safety partition plate, even if the explosion-proof electrical box is in an insulation failure, the electrical components are directly exposed in the storage cavity, the situation that the electric spark ignition source is generated in the storage cavity is further avoided, and the storage requirements of flammable dangerous chemicals can be met, and the safety requirements of storing the dangerous chemicals in the process of selling and the dangerous chemicals are reduced.

As the preferable technical scheme, the safety partition plate comprises two layers of explosion-proof steel plates which are arranged in parallel, and fireproof cotton is filled between the explosion-proof steel plates.

According to the preferred technical scheme, the mounting fence is two layers of explosion-proof steel plates which are arranged in parallel and are filled with fireproof cotton, so that the explosion-proof electrical box and the storage chamber can be reliably isolated, an effective explosion-proof effect can be provided even when the explosion-proof electrical box is isolated and fails, the electrical elements are prevented from being directly exposed in the storage chamber, and the safety of the chemical vending machine is improved.

As an optimized technical scheme, the weighing sensor is an intrinsic safety type electric appliance, and the weighing sensor is in communication connection with the electric control device through an explosion-proof cable.

According to the preferred technical scheme, the intrinsic safety type electric appliance and the explosion-proof cable which can not generate electric sparks are adopted, so that the risk of an ignition source in the storage cavity can be further reduced, and intrinsic safety can be ensured for some electric appliances which are inevitably exposed in the storage cavity.

As a preferred technical solution, the chemical vending machine further comprises: the explosion-proof electromagnetic lock is arranged at the edge of the cabinet door and is also provided with a mechanical lock hole for manual unlocking.

According to the preferred technical scheme, the electromagnetic lock can receive the control instruction to control the cabinet door to automatically lock and unlock, so that the cabinet door can be automatically opened and closed without manual assistance, and meanwhile, the lock cylinder of the explosion-proof electromagnetic lock is also provided with a mechanical lock hole, and can respond to the manual unlocking of the mechanical lock hole and complete the unlocking of the chemical vending machine under the emergency conditions such as power failure or faults.

As the preferable technical scheme, the cabinet door comprises a first door body and a second door body which are opened in double, a closing gap is formed between two end faces, far away from the cabinet main body, of the first door body and the second door body at the closing position, and an overlapping piece for covering the closing gap is formed on the outer surface of the first door body and/or the inner surface of the second door body.

According to this preferred technical scheme, through setting up simple structure's overlapping piece, can cover the closed gap between first door body and the second door body, simultaneously, can also the butt on the surface of another cabinet door, form the Z shape gap of winding to can promote the dampproofing effect of preventing leaking of chemical vending machine.

As the preferable technical scheme, the explosion-proof electromagnetic lock comprises two lock cylinders which are respectively arranged at the upper edge and the lower edge of the first door body.

According to the preferred technical scheme, due to the closing mode that the overlapped sheets of the first door body and the second door body are mutually pressed, the stable locking effect can be achieved only by locking the first door body, double locking is carried out from the upper side and the lower side of the first door body, and the sealing performance of the cabinet door when the cabinet door is closed can be further improved by matching with the overlapped sheets.

As a preferred technical solution, the chemical vending machine further comprises: the explosion-proof proximity switch is arranged on one side surface of the cabinet main body, corresponding to the cabinet door, and is used for detecting the distance between the one side surface of the cabinet main body, corresponding to the cabinet door, and the cabinet door.

According to the preferred technical scheme, after the detection value of the weighing sensor is not changed any more, the user is considered to take out the goods, and the distance between the cabinet door and the cabinet main body is further detected through the explosion-proof proximity switch, so that whether the cabinet door is closed well can be confirmed, and the cabinet door can be locked and closed after the goods are sold each time under the condition of unmanned management.

As a preferred technical solution, the chemical vending machine further comprises: the metal door handle and the grounding wire are provided with insulating anti-corrosion layers on the surfaces of the cabinet door, fixing holes which penetrate through the metal door handle and the cabinet door correspondingly are formed in the surfaces of the metal door handle and the cabinet door, and metal screws penetrate through the insulating anti-corrosion layers and are screwed in the fixing holes; one end of the grounding wire is connected with the tip end penetrating through the metal screw, and the other end of the grounding wire is connected with the grounding end of the explosion-proof electrical box.

According to the preferred technical scheme, the electrostatic guiding-out way in the chemical vending machine is as follows: the metal door handle is grabbed to the staff, static is shifted to the metal door handle by the staff to through the metal screw of metal door handle, pass in the insulating anticorrosive coating conducted to the cabinet door, shift to the earthing terminal of flameproof electrical apparatus box through the earthing wire in the cabinet door, thereby can all carry out static to the human body before opening the automatic machine of selling of chemical at every turn, can avoid human static accumulation to form the ignition source and initiate conflagration or explosion better, and can rely on the structure of automatic machine of selling of chemical self to carry out static and derive, need not to set up static derivation device in addition, moreover, the steam generator is simple in structure, and is also more convenient.

As a preferred technical solution, the chemical vending machine further comprises: one end of the hollow pipe penetrates through the surface of the cabinet door and is hinged with the cabinet door, the other end of the hollow pipe is movably arranged in the limiting groove, and the limiting groove is formed in the surface of the side, facing the user, of the explosion-proof electrical box.

According to the preferred technical scheme, the hollow tube can play a limiting role in opening the cabinet door, and avoid excessive overturning and knocking against an adjacent storage cabinet or other objects when the cabinet door is opened, so that the risk of generating an ignition source due to collision impact of the cabinet door is reduced. Meanwhile, the hollow tube can also be used for the lead to pass through, so that the lead is prevented from being bent and damaged in the opening and closing process of the cabinet door, the lead is separated from the storage chamber, and the safety of the automatic chemical vending machine is improved.

As a preferred technical solution, the chemical vending machine further comprises: and a check port is formed above the explosion-proof electrical box, a check top cover is arranged corresponding to the check port, a gap is formed between the check top cover and the check port, and the drain tank is arranged below the gap.

According to this preferred technical scheme, the chemical vending machine has the hydrophobic groove that corresponds the clearance below that sets up between inspection top cap and inspection mouth, consequently can separate and dredge the liquid that is permeated by this clearance, when being convenient for the user to inspect and maintain the electrical components in the flameproof electrical apparatus box, can also avoid liquid direct infiltration flameproof electrical apparatus box to lead to electrical apparatus trouble.

Drawings

Fig. 1 is a schematic view of the overall structure of a chemical vending machine according to an embodiment of the present application.

Fig. 2 is a rear oblique view of an internal structure of a chemical vending machine according to an embodiment of the present application.

Fig. 3 is a top view of a cabinet door of a chemical vending machine according to an embodiment of the application in a closed position.

Fig. 4 is a schematic structural diagram of an explosion-proof electromagnetic lock of a chemical vending machine according to an embodiment of the present application.

Fig. 5 is a schematic view of the back structure of a metal door handle according to an embodiment of the present application.

Fig. 6 is a schematic view of a partial structure of a chemical vending machine according to an embodiment of the present application.

Fig. 7 is a schematic top oblique view of a chemical vending machine according to an embodiment of the present application.

Description of the reference numerals

1-a cabinet main body; 11-a storage chamber; 12-bearing plates; 13-vent holes; 14-a baffle; 15-wire guides; 16-explosion-proof proximity switch; 17-drainage holes; 18-locking grooves; 2-a cabinet door; 21-a door body; 22-explosion-proof panel; 23-a first door body; 231-a first overlapping sheet; 24-a second door; 241-second overlapping sheet; 25-closing the slit; 26-a gasket; 3-a weighing sensor; 4-an explosion-proof electrical box; 41-limit grooves; 41 a-closed end; 41 b-an open end; 42-checking port; 43-checking the top cover; 44-a hydrophobic tank; 441-outer race groove walls; 442-inner race groove wall; 45-water outlet; 5-a safety barrier; 6-explosion-proof electromagnetic lock; 61-lock core; 611-a bolt; 612-mechanical lock hole; 7-a metal door handle; 71-a hand grip; 72-a fixing part; 73-fixing holes; 74-mounting surface of cabinet door; 8-hollow tube.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to fall within the scope of the present application.

It should be noted that, in the description of the present application, terms such as "upper", "lower", "left", "right", "front", "rear", and the like indicate positional relationships are based on directions or positional relationships shown in the drawings, wherein "front" refers to a direction toward a user and "rear" refers to a direction away from the user, which is merely for facilitating more visual understanding of the present application by those skilled in the art, and do not indicate or imply that a device or component must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

First embodiment

Fig. 1 is a schematic view of the overall structure of a chemical vending machine according to the present embodiment. Fig. 2 is a rear perspective view of an internal structure of the chemical vending machine according to the present embodiment. As seen in connection with fig. 1 and 2, the chemical vending machine comprises: the anti-explosion cabinet comprises a cabinet main body 1, a cabinet door 2, a weighing sensor 3, an anti-explosion electrical box 4 and a safety partition 5.

The cabinet main body 1 may be formed into a storage cabinet with any shape, illustrated in fig. 1, the cabinet main body 1 may be a rectangular explosion-proof frame structure, for example, a double-layer explosion-proof steel plate with a thickness of 1.2mm may be selected, an explosion-proof shell with a thickness of 40mm filled with fireproof cotton is used as an external skeleton of the cabinet main body 1, the external skeleton encloses to form a cavity, an explosion-proof electrical box 4 is embedded in an upper portion of the cavity, a storage cavity 11 is formed in a lower portion of the cavity, and the two cavities are separated by a safety partition 5. The storing cavity 11 can be semi-closed cavity, the front (towards one side of user) has open opening, preferably, still be formed with the air vent 13 that can open and close automatically on storing cavity 11 lateral wall, according to the storage demand of different dangerous chemicals, can control this air vent 13 and open and close, bearing plate 12 sets up in storing cavity 11, the space separation in the storing cavity 11 forms the multilayer and puts the thing check, preferably, still have the baffle 14 of vertical setting on bearing plate 12 on every layer put the thing check, can further separate every layer into a plurality of thing check of putting, can place a plurality of chemicals of same kind in proper order around on every putting the thing check, can be convenient for the user find the chemical that needs fast.

The cabinet door 2 is disposed corresponding to the opening of the storage chamber 11, and the cabinet door 2 may be any door body capable of controlling the opening of the storage chamber 11 to be opened or closed, for example, a double-opening door body, a sliding door body, a single-leaf roll-over door body, etc., and the door body of the cabinet door 2 is generally made of metal, but the cabinet door 2 made of other materials also belongs to the protection scope of the present application. Preferably, taking fig. 1 as an example, the cabinet door 2 may include a door main body 21 and an explosion-proof panel 22, where an outer surface and an inner surface of the door main body 21 are respectively covered with the explosion-proof panel 22 with a certain thickness, an interior of the door main body 21 is formed into a hollow cavity with a supporting framework, and fireproof cotton can be filled in the hollow cavity, so that the door body strength and the explosion-proof performance can be ensured, and meanwhile, the dead weight of the door body is reduced, so that the door body is lighter.

The weighing sensors 3 are arranged inside the bearing plates 12 corresponding to the storage boxes, for example, two storage boxes are separated on each layer of bearing plates 12 by the baffle plates 14, and two weighing sensors 3 are arranged in the bearing plates 12 of the layer corresponding to the two storage boxes. The detection position of the weighing sensor 3 is consistent with the chemical placement position in the storage grid, namely, the chemical can be placed in the storage grid along the front and back directions, and the detection position of the weighing sensor 3 corresponding to the storage grid is not smaller than the front and back placement position of the chemical, so that all the chemicals placed in the storage grid can be counted, and the number of the chemicals in the storage grid can be counted through weight change. Preferably, the load cell 3 is an intrinsic safety type electric appliance, and the load cell 3 and an electric control device (not shown) are in communication connection through an explosion-proof cable, and the intrinsic safety type electric appliance and the explosion-proof cable which are small in current and free from electric spark are adopted, so that the risk of an ignition source in the storage chamber 11 can be further reduced, and intrinsic safety can be ensured for some electric elements which must be arranged in the storage chamber 11.

The explosion-proof electrical box 4 is arranged at the upper end of the cabinet main body 1, specifically, the explosion-proof electrical box 4 can be a box body with an opening at the upper part, and is embedded and installed from the top of the cabinet main body 1, so that the explosion-proof electrical box 4 can be sealed and isolated from a storage cavity 11 at the lower part, and preferably, the thickness of the box wall of the explosion-proof electrical box 4 adopted by the application is not less than 5mm, so that the explosion-proof electrical box has better explosion-proof performance.

Particularly, a safety partition 5 is further arranged between the flameproof electrical box 4 and the storage chamber 11, the safety partition 5 can be any partition board with flameproof performance, in this embodiment, preferably, the installation fence is two layers of flameproof steel plates which are arranged in parallel and are filled with flame-proof cotton between the two layers of the flameproof steel plates, so that the flameproof electrical box 4 and the storage chamber 11 can be further separated, and even when the isolation of the electrical box fails, the flameproof effect can be effectively provided, the electrical components such as an electric control device of the weighing sensor 3 are prevented from being directly exposed in the storage chamber 11, and the safety of the automatic chemical vending machine is improved.

In this embodiment, the user can directly open cabinet door 2 and take the chemical on the storage compartment 11 by the opening of storage compartment 11 to, corresponding to the weight numerical value change of weighing sensor 3 of storage compartment, electric control unit receives the weight change condition that this weighing sensor 3 sent in flameproof electrical apparatus box 4, and count, obtain the quantity of which one or more chemicals has been taken by the user, and can carry out the change of chemical stock in the cabinet according to the quantity of taking, also can obtain the chemical order that the user took according to the quantity change of chemical, thereby accomplish the deposit of chemical and sell automatic management, and in deposit and sell the in-process, the user directly takes the chemical, consequently can not be like the cabinet of selling in the prior art because the article drops and produces the impact ignition source, electrical components concentrate the setting and separate completely with storage compartment 11 through safe baffle 5, even when flameproof electrical apparatus box 4 takes place the isolation failure, also can avoid electrical components direct exposure in storage compartment 11, further avoided the storage compartment 11 to appear the electric spark ignition source, thereby can satisfy the dangerous and dangerous goods of deposit in the dangerous chemical process.

Second embodiment

The second embodiment of the present application provides a chemical vending machine capable of controlling the automatic opening and closing of the cabinet door 2 on the basis of the chemical vending machine in the above-described embodiment.

Fig. 3 is a top view of the cabinet door provided in this embodiment. As shown in connection with fig. 1 and 3. The cabinet door 2 is a double-opened first door body 23 and second door body 24, in which a closing gap 25 is formed between two closing end surfaces of the first door body 23 and the second door body 24 away from the cabinet body 1, and an outer surface of the first door body 23 and/or an inner surface of the second door body 24 is formed with overlapping pieces (first overlapping piece 231 and/or second overlapping piece 241) covering the closing gap 25, and here, a case where the cabinet door 2 is provided with the first overlapping piece 231 and the second overlapping piece 241 at the same time is described as an example, and it is preferable that the explosion-proof panel 22 of the outer surface of the first door body 23 is formed to extend directly as the first overlapping piece 231, and the explosion-proof panel 22 of the inner surface of the second door body 24 is also formed to extend as the second overlapping piece 241. Specifically, the width of the explosion-proof panel 22 on the outer surface of the first door body 23 is greater than the width of the door main body 21 of the first door body 23, so that the explosion-proof panel 22 on the outer surface of the first door body 23 protrudes from the closed end surface of the door main body 21 to form a first overlapping piece 231 overlapped and abutted with the outer surface of the second door body 24, and similarly, the width of the explosion-proof panel 22 on the inner surface of the second door body 24 is also greater than the width of the door main body 21, so that the explosion-proof panel 22 on the inner surface of the second door body 24 protrudes from the closed end surface of the door main body 21 to form a second overlapping piece 241 overlapped and abutted with the inner surface of the first door body 23. In addition, the first overlapping piece 231 and the second overlapping piece 241 can be abutted on the surface of the other cabinet door 2 while covering the closing gap 25, so that the effects of moisture prevention and leakage prevention of the chemical vending machine can be improved.

Preferably, the surface of the first overlapping piece 231 and/or the second overlapping piece 241 corresponding to the closing slit 25 is further provided with a gasket 26, when the first door body 23 and the second door body 24 are closed, the first overlapping piece 231 covers a side of the closing slit 25 facing the user, and the inner surface of the first overlapping piece 231 is attached to the outer surface of the closing end of the second door body 24, the second overlapping piece 241 covers a side of the closing slit 25 facing away from the user, and the second overlapping piece 241 is attached to the inner surface of the closing end of the first door body 23, so that preferably, the gasket 26 may be disposed on an end surface of the first overlapping piece 231 and/or the second overlapping piece 241 facing away from the first door body 23 or the second door body 24, i.e. the gasket 26 is disposed on an end of the first overlapping piece 231 and/or the second overlapping piece 241 crossing the closing slit 25, so as to further seal the attaching slit between the first overlapping piece 231 and/or the second overlapping piece 241 and the surface of the cabinet door 2.

In some preferred embodiments of the present application, the lengths of the door bodies 21 of the first and second door bodies 23 and 24 are matched with the opening length of the storage chamber 11, and the lengths of the explosion-proof panels 22 of the outer surfaces of the first and second door bodies 23 and 24 are greater than the opening length of the storage chamber 11, when the door bodies 21 are matched and engaged with the opening of the storage chamber 11, the upper and lower edges of the explosion-proof panels 22 of the outer surfaces of the door bodies 21 protrude from the opening of the storage chamber 11 and are attached to the surfaces of the cabinet body 1 on the upper and lower sides of the opening of the storage chamber 11, so that the gap between the door bodies 21 and the opening of the storage chamber 11 is covered, leakage of gas from the gap between the door bodies 21 and the opening of the storage chamber 11 is further prevented, and the tightness of the automatic chemical vending machine is improved.

Fig. 4 is a schematic structural diagram of an explosion-proof electromagnetic lock of the chemical vending machine according to the present embodiment. As seen in connection with fig. 1, 3 and 4. The explosion-proof electromagnetic lock 6 may include a lock core 61, a control device and a power supply, where the power supply may be integrally formed with the control device, or may be set as two independent electrical appliances, the power supply may also be an external power supply selectively set outside the chemical vending machine, where the lock core 61 of the explosion-proof electromagnetic lock 6 may be a commercially available lock core, where the lock core 61 of the explosion-proof electromagnetic lock 6 may be illustrated as a lock core with a retractable lock tongue 611, where the lock core 61 may be set at an edge of the cabinet door 2, the lock core 61 may be extended and retracted from the edge of the door body to the lock tongue 611, and correspondingly, a locking groove 18 into which the lock tongue 611 enters is formed on an inner wall of the storage chamber 11, and particularly, the lock core 61 is in communication connection with the control device, and may receive a control instruction of the control device to control the cabinet door 2 to automatically lock and unlock, i.e., after receiving the locking instruction of the control device, the lock tongue 611 extends into the locking groove 18 to lock the cabinet door 2, and after receiving the unlocking instruction of the control device, the lock tongue 611 retracts to unlock, thereby completing automatic opening and closing of the cabinet door 2 without manual assistance. Meanwhile, the lock core 61 of the explosion-proof electromagnetic lock 6 is further provided with a mechanical lock hole 612, and can be unlocked manually in response to the mechanical lock hole 612, so that unlocking of the chemical vending machine can be completed under emergency conditions such as power failure or faults. Preferably, the lock core 61 of the explosion-proof electromagnetic lock 6 may be built in the hollow cavity of the door main body 21, and the mechanical lock hole 612 is disposed in a manner protruding from the surface of the cabinet door 2. In this embodiment, in a manner matching with the double-opening cabinet door 2 in this embodiment, the explosion-proof electromagnetic lock 6 may include two lock cylinders 61, which are respectively disposed on the upper edge and the lower edge of the hollow cavity of the first door body 23, and because of the closing manner in which the first overlapping piece 231 and the second overlapping piece 241 are mutually pressed, the stable locking effect can be achieved only by locking on the first door body 23, and the double locking can be performed from the upper side and the lower side of the first door body 23, and the tightness of the cabinet door 2 when being closed can be further improved by matching with the overlapping piece, and the power wire can be directly connected with the explosion-proof electromagnetic lock 6 in the hollow cavity, so that the power wire is not exposed on the surface of the cabinet door 2, and the mechanical lock hole 612 protrudes out of the surface of the cabinet door 2, so that the manual unlocking operation is more convenient for the user.

In addition, the control device and the power supply of the explosion-proof electromagnetic lock 6 can be integrally arranged in the explosion-proof electrical box 4, and can also be used as separate electrical components, in some preferred embodiments, the control device and the power supply are all arranged in the explosion-proof electrical box 4, so that better electrical integration is realized, compact structure is achieved, and the separation of the electrical appliance and the storage chamber 11 can be ensured in the explosion-proof electrical box 4, in other preferred embodiments, openings through which wires can pass are formed in the front side wall and the left side wall and the right side wall of the explosion-proof electrical box 4, for example, in some embodiments, a limit groove 41 is formed in the front side wall of the explosion-proof electrical box 4, wires connected with a lock cylinder in the cabinet door 2 can enter the explosion-proof electrical box 4 through the limit groove 41 in the front side wall of the explosion-proof electrical box 4, and the wires in the explosion-proof electrical box 4 are led out of the cabinet main body 1 directly from the wire holes 15 of the left side wall and the right side wall, therefore, the external power supply can be further adopted, the wires between the control device and the external power supply can be connected through the wire holes 15, the external power supply can be adopted, the explosion-proof electrical appliance can be saved in a lower level, the cost and the electrical appliance can be prevented from being separated from the storage chamber 11, and the dangerous electrical components can be prevented from being connected with the storage chamber 11.

It should be noted that the chemical vending machine in this embodiment further has an explosion-proof proximity switch 16 disposed on a side surface of the cabinet body 1 corresponding to the cabinet door 2, so that the distance between the side surface of the cabinet body 1 corresponding to the cabinet door 2 and the cabinet door 2 can be detected, that is, after the detection value of the weighing sensor 3 is not changed any more, the user can take the chemical vending machine completely, and the distance between the cabinet door 2 and the cabinet body 1 is detected through the explosion-proof proximity switch 16, so that whether the cabinet door 2 is closed is confirmed, and the chemical vending machine can ensure that the cabinet door 2 can reach the locking position to be locked and closed after the vending is completed every time under the condition of unmanned management.

Third embodiment

A third embodiment of the present application provides a chemical vending machine capable of conducting out static electricity carried by a human body before a user opens a cabinet door 2, on the basis of the chemical vending machine in the above-described embodiment.

As shown in fig. 1, the outer surface of the cabinet door 2 of the chemical vending machine is provided with a metal door handle 7, the metal door handle 7 comprises a hand holding part 71 and a fixing part 72, the hand holding part 71 is arranged towards a user for being held by the hand, the fixing part 72 is provided with a mounting structure which is mutually fixed with the cabinet door 2 at one end of the metal door handle 7 far away from the user, in particular, in the embodiment, the fixing part 72 of the metal door handle 7 and the surface of the cabinet door 2 are provided with fixing holes 73 which correspondingly penetrate, a metal screw penetrates through an insulating and corrosion-proof layer on the cabinet door 2 to be screwed into the fixing holes 73, one end of a grounding wire is connected with the tip of the metal screw, and the other end of the grounding wire is connected with the grounding end of the explosion-proof electrical box. Specifically, the insulating anti-corrosion layer can cover all the surfaces of the cabinet door 2 except the positions corresponding to the fixing holes 73 of the metal door handle 7, so that the insulating anti-corrosion effect on the cabinet door 2 can be guaranteed, the metal door handle 7 can directly contact with the cabinet door 2 through the fixing holes 73 by metal screws, and the metal screws can be connected with a grounding wire in the hollow cavity after penetrating through the explosion-proof panel 22 of the door main body 21 and entering the hollow cavity of the door main body 21. Preferably, the outer surface of the hand-holding portion 71 of the metal door handle 7 is also sprayed with an insulating corrosion-preventing layer, so that the corrosion of the metal door handle 7 is avoided while the static electricity conducting performance of the metal door handle 7 is ensured.

In this embodiment, the electrostatic discharge path in the chemical vending machine is as follows: the metal door handle 7 is grabbed by the staff, static is transferred to the metal door handle 7 by the staff, and pass through the metal screw of metal door handle 7, pass the insulating anticorrosive coating and conduct to the earthing wire in the cabinet door 2, transfer to the earthing terminal (not shown) of flameproof electrical apparatus box 4 via the earthing wire, the earthing terminal can be the conductor structure of ground, or the inside earthing wire of flameproof electrical apparatus box 4, it is unlimited here, thereby can all carry out static to the human body before opening the chemical vending machine at every turn, can avoid human static accumulation and form the ignition source to initiate conflagration or explosion better, and can rely on the structure of chemical vending machine itself to carry out static to derive, need not to set up in addition static derivation device, and is simple in structure, and is also more convenient.

Fig. 5 is a schematic view of the back structure of the metal door handle 7 provided in the present embodiment. As can be seen from fig. 1 and 5, the fixing portion 72 of the metal door handle 7 of the chemical vending machine according to the present embodiment may have a rectangular closed cavity structure, and has a handle mounting surface (a surface facing a user) and a door mounting surface 74 (i.e., a rear surface of the metal door handle 7) parallel to each other, the hand grip portion 71 is formed as a hidden handle, and is mounted on the handle mounting surface in an embedded manner, the door mounting surface 74 is attached to the cabinet door 2, and a fixing hole 73 corresponding to the penetrating hole is formed, so that the fixing portion can be screwed through the door mounting surface 74 and the surface of the cabinet door 2 by using a metal screw, preferably four fixing holes 73 are formed at four corners of the door mounting surface 74 of the fixing portion 72, respectively, so that stability of the fixing structure of the metal door handle 7 and the cabinet door 2 can be improved.

In this embodiment, based on the structure of the metal door handle 7, the screw head of the metal screw can be disposed in the cavity of the fixing portion 72, so that after the metal door handle 7 is mounted, the outer surface of the fixing portion 72 of the metal door handle 7 can be directly painted without additionally separating the screw head of the metal screw for painting, and the outer surface of the metal door handle 7 can be formed into a monolithic plane, which is more attractive.

Fourth embodiment

The fourth embodiment of the present application provides a chemical vending machine capable of protecting and separating a wire between a cabinet door 2 and an explosion-proof electrical box 4 on the basis of the chemical vending machine in the second or third embodiment.

Fig. 6 is a schematic partial structure of the chemical vending machine according to the present embodiment. As can be seen from fig. 1 and 6, a hollow tube 8 is further disposed between the cabinet door 2 and the cabinet body 1 of the chemical vending machine, the hollow tube 8 may be any tubular structure having a through passage, for example, may be a hollow circular tube structure as shown in fig. 6, or may be any other shape such as a hollow cone, a hollow square tube, etc. all suitable for the present application, one end of the hollow tube 8 is hinged with the cabinet door 2, the other end is connected in a limit slot 41 of the cabinet body 1, and can move along the limit slot 41, specifically, the limit slot 41 may have an open end 41b and a closed end 41a, the open end 41b is close to the cabinet door 2, the closed end 41a is far away from the cabinet door 2, when the cabinet door 2 is closed, the hollow tube 8 is located at the closed end 41a, and a side wall close to the flameproof electrical box 4 is in a folded state, when cabinet door 2 is opened, hollow tube 8 removes to opening end 41b in spacing groove 41, hollow tube 8 becomes braced state by folding state, first door body 23 is rotatory to be opened around articulated limit, when hollow tube 8 is located opening end 41b, hollow tube 8 supports in cabinet door 2 and the lateral wall of flame proof electrical apparatus box 4, cabinet door 2 can't continue to open, preferably, when hollow tube 8 is located opening end 41b, the contained angle of cabinet door 2 internal surface and spacing groove 41 place surface is 60-100, consequently this hollow tube 8 can play the limiting effect, avoid cabinet door 2 to open when excessively overturned and collide with adjacent cabinet or other objects, thereby reduce cabinet door 2 and collide with the impact and produce the risk of ignition source.

In particular, the wires of the electrical equipment on the cabinet door 2 can be electrically connected with the electrical equipment in the flameproof electrical box 4 after passing through the hollow tube 8, for example, in some preferred embodiments, the power supply of the flameproof electromagnetic lock 6 is arranged in the flameproof electrical box 4, the connecting wires between the lock core 61 and the power supply pass through the hollow tube 8, and in other preferred embodiments, the grounding wires connected with the metal screws of the metal door handle 7 are also connected with the grounding end in the flameproof electrical box 4 in a manner of passing through the hollow tube 8, so that bending damage in the opening and closing process of the cabinet door 2 can be avoided, and meanwhile, the hollow tube 8 can also play a role of separating the wires from the storage chamber 11, so that the safety of the automatic chemical vending machine is improved.

Fifth embodiment

The fifth embodiment of the present application provides a chemical vending machine capable of better ensuring safe operation of the electrical components in the flameproof electrical box 4 on the basis of the chemical vending machine in any of the above embodiments.

Fig. 7 is a schematic top oblique view of the chemical vending machine according to the present embodiment. As shown in fig. 7, the flameproof electrical box 4 further has an inspection opening 42, the inspection opening 42 is covered with an inspection top cover 43 with a matched shape, and the inspection opening 42 and the inspection top cover 43 are both disposed at one end of the cabinet body 1 far away from the storage chamber 11, that is, at the top of the cabinet body 1, so as to further avoid the communication between the flameproof electrical box 4 and the storage chamber 11. The inspection top cover 43 is an arbitrary cover structure capable of controlling the opening and closing of the inspection port 42, and is not limited to a flip cover, a slide cover, a telescopic cover, or the like. In the closed position, even if the edge of the inspection top cover 43 is identical to the edge of the inspection port 42 in shape and size, the inspection top cover 43 and the inspection port 42 can be just engaged, but the engaged gap still makes it difficult to completely close the space between the inspection top cover 43 and the inspection port 42, and in addition, in order to separate the flameproof electrical box 4 from the storage chamber 11, the inspection port 42 needs to be disposed at a position away from the storage chamber 11, that is, at the top of the cabinet body 1, so that it is easier for liquids such as rainwater to penetrate through the gap (not shown) between the inspection top cover 43 and the inspection port 42 in the case of rainfall, snowing, or the like.

In this embodiment, the chemical vending machine further includes a drain tank 44 disposed below the gap between the inspection top cover 43 and the inspection port 42, the drain tank 44 is formed as a groove structure with two sides high and a middle low, the depth and the size of the groove are not limited, and the drain tank 44 is disposed below the gap between the inspection top cover 43 and the inspection port 42, so that the liquid permeated by the gap can be blocked and dredged, and the risk of electrical failure caused by direct permeation of the liquid into the flameproof electrical box 4 is avoided.

It should be noted that the lower part may be directly lower part or may be slightly offset, so long as the notch and the gap are ensured to be corresponding to each other.

In some preferred embodiments, the inspection top cover 43 may be mounted on the cabinet body 1 in such a manner that a long side is hinged with a long side of the inspection opening 42, so that a user may pull up one side of the inspection top cover 43 by means of a handle on the inspection top cover 43, flip the inspection top cover 43 open, and thereby enable convenient opening and closing of the inspection top cover 43 and the inspection opening 42. The shape of the drain groove 44 corresponding to the edge of the inspection opening 42 is formed into a groove structure which is connected end to end, corresponding to the inspection top cover 43 and the inspection opening 42, for example, for a rectangular inspection opening 42, the drain groove 44 is formed into a rectangular groove which is connected end to end around the edge of the inspection opening 42, so that all liquid permeated by an annular gap between the inspection opening 42 and the inspection top cover 43 can be accepted, the annular groove can rapidly drain the permeated liquid bidirectionally, further, the outer ring groove wall 441 of the drain groove 44 can be directly attached to the inner wall of the inspection opening 42 or integrally formed with the inner wall of the inspection opening 42, and the inner wall of the inspection opening 42 is directly used as the outer ring groove wall 441 of the groove, so that on one hand, the liquid flowing down along the inner wall of the inspection opening 42 can be better received, and the liquid permeated into the explosion-proof electrical box 4 by the gap between the inspection opening 42 and the drain groove 44 can be avoided; on the other hand, the inner ring groove wall 442 of the drain groove 44 is flush with or slightly lower than the outer ring groove wall 441, i.e., the inner ring groove wall 442 of the drain groove 44 is flush with or slightly lower than the inspection opening 42, so that when the inspection top cover 43 is closed, the upper end surface of the inner ring groove wall 442 can abut against the lower surface of the inspection top cover 43 to limit, thereby preventing liquid in the drain groove 44 from splashing out, and facilitating stable closing of the inspection top cover 43 and the inspection opening 42.

In particular, since the inspection top cover 43 is opened by rotating upward around the hinged side, at the time of opening, moisture, water drops, etc. adhering to the inspection top cover 43 may slide down along the inner surface of the inspection top cover 43 to the side of the inspection top cover 43 hinged to the inspection port 42, and thus the water outlet 45 may be disposed below the side of the inspection top cover 43 hinged to the inspection port 42, thereby enabling rapid discharge of the liquid sliding down at the time of opening the inspection top cover 43. Preferably, the level of the bottom surface of the drain groove 44 is gradually reduced from the side far from the water outlet 45 to the water outlet 45, so that the liquid entering the drain groove 44 spontaneously flows into the water outlet 45 to be discharged under the guidance of the height difference, and the structure is simple and stable drainage effect can be maintained.

Further preferably, as shown in fig. 2, the back of the cabinet body 1 is further provided with a drain hole 17, the drain hole 17 is arranged at a position corresponding to the flameproof electrical box 4 and has a lower level than the water outlet 45, and the water outlet 45 is communicated with the drain hole 17 through a drain pipeline, so that liquid discharged from a drain outlet of the drain tank 44 can be discharged from the drain hole 17 to the chemical vending machine under the action of a height difference, and the liquid does not need to pass through the storage chamber 11 to be directly discharged, and the chemical in the storage chamber 11 can be prevented from being wetted.

Those skilled in the art will appreciate that in the foregoing embodiments, numerous technical details have been set forth in order to provide a thorough understanding of the present application. However, the technical solutions claimed in the claims of the present application can be basically implemented without these technical details and various changes and modifications based on the above embodiments. Accordingly, in actual practice, various changes may be made in the form and details of the above-described embodiments without departing from the spirit and scope of the application.

Claims

1. A chemical vending machine, comprising:

the cabinet main body is provided with a storage cavity, and the storage cavity is divided into a plurality of layers of storage grids by built-in bearing plates;

the cabinet door is arranged corresponding to the opening of the storage cavity;

the weighing sensors are correspondingly arranged in the bearing plates below each storage grid;

the explosion-proof electrical box is arranged at the upper end of the cabinet main body and internally provided with electrical components, and the electrical components at least comprise an electric control device connected with the weighing sensor;

and the safety partition plate is arranged between the explosion-proof electrical box and the storage cavity.

2. The chemical vending machine of claim 1, wherein the safety barrier comprises two layers of explosion-proof steel plates arranged in parallel, and wherein fireproof cotton is filled between the explosion-proof steel plates.

3. The chemical vending machine of claim 1, wherein the load cell is an intrinsically safe electrical appliance, and the load cell and the electronic control device are communicatively connected by an explosion-proof cable.

4. The chemical vending machine of claim 1, further comprising:

the anti-explosion electromagnetic lock is arranged at the edge of the cabinet door and is further provided with a mechanical lock hole for manual unlocking.

5. The chemical vending machine of claim 4, wherein the cabinet door comprises a first door body and a second door body that are double-opened, wherein a closing slit is formed between two end surfaces of the first door body and the second door body that are far away from the cabinet body in a closed position, and wherein an outer surface of the first door body and/or an inner surface of the second door body is formed with a overlapping sheet that covers the closing slit.

6. The chemical vending machine of claim 5, wherein the explosion-proof electromagnetic lock comprises two lock cylinders respectively disposed at an upper edge and a lower edge of the first door body.

7. The chemical vending machine of any of claims 4-6, further comprising:

the explosion-proof proximity switch is arranged on one side surface of the cabinet main body corresponding to the cabinet door and used for detecting the distance between the cabinet main body and the cabinet door and between the side surface of the cabinet main body corresponding to the cabinet door and the cabinet door.

8. The chemical vending machine of claim 7, further comprising:

the metal door handle is characterized in that the surface of the cabinet door is covered with an insulating anti-corrosion layer, the metal door handle and the surface of the cabinet door are provided with fixing holes which correspondingly penetrate through the metal door handle, and metal screws penetrate through the insulating anti-corrosion layer and are screwed in the fixing holes;

and one end of the grounding wire is connected with the tip end penetrating through the metal screw, and the other end of the grounding wire is connected with the grounding end of the explosion-proof electrical box.

9. The chemical vending machine of claim 8, further comprising:

one end of the hollow tube penetrates through the surface of the cabinet door to be hinged with the cabinet door, the other end of the hollow tube is movably arranged in the limiting groove, and the limiting groove is formed in the surface of the flameproof electrical box, facing to a user, of the side.

10. The chemical vending machine of claim 1, further comprising:

and a drain tank, wherein an inspection port is formed above the explosion-proof electrical box, an inspection top cover is arranged corresponding to the inspection port, a gap is formed between the inspection top cover and the inspection port, and the drain tank is arranged below the gap.