An explosion-proof forklift for use in a coal mine

Abstract

The utility model relates to a forklift structure design technical field discloses a kind of explosion-proof forklift for coal mine underground, including manned department and fixedly arranged in the cargo fork department of the side of manned department, the manned department includes main body structure, setting on the cab of the main body structure, the protective cavity of being opened in the main body structure inside is located at the position below the cab, protective housing for putting electrical equipment is fixedly arranged in the protective cavity by anti-violence alloy material, cooling mechanism is provided on the protective housing, the cooling mechanism includes the cooling pipeline for reducing the temperature inside protective housing for being arranged in the protective housing, the utility model circulates flow under the action of water pump by the cooling water in cooling pipeline and cooling pipeline, cooling pipeline is set in the bottom surface of main body structure, and contact with outside, in the process of cooling water circulation, heat in protective housing is continuously taken to outside, and the internal space of protective housing is cooled down.

Description

Technical Field

[0001] This utility model relates to the field of forklift structure design technology, and more specifically, to an explosion-proof forklift for use in underground coal mines. Background Technology

[0002] Forklifts are indispensable tools in the logistics industry. They use forks as the main picking device, rely on hydraulic lifting mechanisms to lift goods, and use a wheeled driving system to achieve horizontal transport. They can easily complete the loading, unloading, and short-distance transportation of goods. They are widely used in warehouses, factories, ports, and other places, and are an indispensable piece of equipment in modern logistics operations. In flammable and explosive environments such as chemical, oil and gas, and pharmaceutical industries, the electric sparks and high temperatures generated by ordinary forklifts during operation can easily cause serious explosion accidents. Explosion-proof forklifts, through special design and manufacturing, can operate safely in high-risk environments and effectively avoid accidents.

[0003] The explosion-proof method of explosion-proof forklifts usually involves sealing electrical equipment and live parts in a robust enclosure. The enclosure can withstand the pressure generated by an internal explosion and prevent the explosion flames and high-temperature gases from being conducted to the external environment. However, the relatively enclosed space makes it easy for the electrical equipment inside the enclosure to accumulate heat too quickly, causing the electrical equipment to overheat and making it more prone to failure and damage. In the working environment of underground coal mines, it is easy to ignite flammable substances in the air and cause an explosion.

[0004] Therefore, this utility model provides an explosion-proof forklift for use in coal mines to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides an explosion-proof forklift for use in coal mines, which has the advantage of avoiding excessive temperature of electrical equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides an explosion-proof forklift for use in coal mines, including a passenger-carrying unit and a fork unit fixedly installed on the side of the passenger-carrying unit. The passenger-carrying unit includes a main structure, a cab installed on the main structure, and a protective cavity opened in the main structure below the cab. A protective shell made of explosion-proof alloy material for housing electrical equipment is fixedly installed in the protective cavity. A cooling mechanism is provided on the protective shell. The cooling mechanism includes a cooling pipe installed inside the protective shell to reduce the internal temperature of the protective shell, a cooling pipe installed outside the protective shell, and a water pump fixedly installed on the outer wall of the protective shell. One end of the cooling pipe is connected to the input end of the water pump, and both ends of the cooling pipe penetrate the protective shell and are respectively connected to the cooling pipe and the output end of the water pump.

[0007] As a preferred embodiment of this utility model, the cooling mechanism further includes a heat-conducting plate fixedly disposed within the protective housing, and the cooling pipe is fixedly disposed within the heat-conducting plate.

[0008] As a preferred embodiment of this invention, the heat-conducting plate is made of a composite material of metal and graphite.

[0009] As a preferred embodiment of this utility model, the cooling pipe is fixedly installed on the bottom surface of the main structure.

[0010] As a preferred technical solution of this utility model, a water conveyor is fixedly installed on the bottom surface of the main structure, and both ends of the water conveyor are connected to the cooling pipes respectively. A valve is provided at the bottom of the water conveyor.

[0011] As a preferred embodiment of this utility model, flameout slits are provided on opposite sides of the protective shell, and air inlets and outlets are provided on the side walls of the protective cavity, with fans installed on the air inlets and outlets to accelerate airflow.

[0012] As a preferred embodiment of this utility model, a high-voltage generator is fixedly installed on the fork section, and the output end of the high-voltage generator is connected to the non-insulated part of the fork section through a wire.

[0013] As a preferred technical solution of this utility model, the junctions of the metal parts of the fork are covered with soft metal to prevent the hard metal parts from generating sparks that could ignite flammable and explosive substances during friction, impact or contact.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model sets up a cooling mechanism. The cooling water in the cooling pipe and the cooling pipe circulates under the action of a water pump. The cooling pipe is located inside the protective shell. The cooling water in it absorbs the heat generated by the electrical equipment inside the protective shell. The cooling pipe is set on the bottom surface of the main structure and is in contact with the outside. It can release the heat absorbed by the cooling water and achieve the purpose of reducing the temperature of the cooling water. During the circulation of the cooling water, the heat in the protective shell is continuously carried to the outside, thus cooling the internal space of the protective shell.

[0016] 2. This utility model, by setting up a protective cavity, has an air inlet, an air outlet, and a fan on the protective cavity that can quickly exchange the air inside and outside the protective cavity, preventing the temperature inside the protective cavity from becoming too high;

[0017] 3. This utility model incorporates a high-voltage generator, which can release electrical energy from a single electrode. This neutralizes the static electricity generated during the operation of the forks, preventing excessive static voltage from causing discharge and thus posing a fire risk. Attached Figure Description

[0018] Figure 1 This is the overall elevation view of the present utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a schematic diagram of the bottom surface of the present invention;

[0022] Figure 5 This is a schematic diagram of the protective shell and cooling mechanism of this utility model;

[0023] Figure 6 This is a cross-sectional view of the protective shell of this utility model.

[0024] In the diagram: 1. Passenger compartment; 11. Main structure; 12. Driver's cab; 13. Protective cavity; 131. Air inlet; 132. Air outlet; 133. Fan; 14. Protective outer shell; 141. Extinguishing seam; 2. Forklift section; 21. High-pressure generator; 3. Cooling mechanism; 31. Cooling pipe; 32. Cooling pipe; 33. Water pump; 34. Heat conduction plate; 35. Water filter; 36. Valve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 6This utility model provides an explosion-proof forklift for use in coal mines, including a passenger compartment 1 and a fork section 2 fixedly installed on the side of the passenger compartment 1. The passenger compartment 1 includes a main structure 11, a cab 12 installed on the main structure 11, and a protective cavity 13 opened inside the main structure 11 below the cab 12. A protective shell 14 made of explosion-proof alloy material for housing electrical equipment is fixedly installed inside the protective cavity 13. A cooling mechanism 3 is provided on the protective shell 14. The cooling mechanism 3 includes a cooling pipe 31 installed inside the protective shell 14 to reduce the internal temperature of the protective shell 14, a cooling pipe 32 installed outside the protective shell 14, and a component fixedly installed on the outer wall of the protective shell 14. The water pump 33 and the cooling pipe 32 are connected at one end to the input end of the water pump 33. The cooling pipe 31 passes through the protective shell 14 at both ends and is connected to the output ends of the cooling pipe 32 and the water pump 33 respectively. The cooling water in the cooling pipe 31 and the cooling pipe 32 circulates under the action of the water pump 33. The cooling pipe 31 is located inside the protective shell 14. The cooling water in it absorbs the heat generated by the electrical equipment inside the protective shell 14. The cooling pipe 32 is set on the bottom surface of the main structure 11 and is in contact with the outside. It can release the heat absorbed by the cooling water and achieve the purpose of reducing the temperature of the cooling water. During the circulation of the cooling water, the heat in the protective shell 14 is continuously carried to the outside, thus cooling the internal space of the protective shell 14.

[0027] Furthermore, refer to Figures 1 to 6 The cooling mechanism 3 also includes a heat-conducting plate 34 fixedly installed inside the protective shell 14, and a cooling pipe 31 fixedly installed inside the heat-conducting plate 34. The heat-conducting plate 34 has excellent thermal conductivity and can quickly absorb the heat inside the protective shell 14. The heat-conducting plate 34 wraps around the cooling pipe 31, which is conducive to transferring heat to the cooling water inside the cooling pipe 31.

[0028] Furthermore, refer to Figures 1 to 6 The heat-conducting plate 34 is made of a composite material of metal and graphite. The metal-graphite composite heat-conducting plate 34 combines the advantages of metal and graphite materials, and performs outstandingly in terms of thermal conductivity, structural stability and application adaptability.

[0029] It should be noted that, referring to Figures 1 to 6 The cooling pipe 32 is fixedly installed on the bottom surface of the main structure 11. During the movement of the explosion-proof forklift, there is sufficient air circulation at the bottom, which can accelerate the cooling of the cooling water in the cooling pipe 32.

[0030] It is worth noting that, referring to Figures 1 to 6 A water conveyor 35 is fixedly installed on the bottom surface of the main structure 11. The two ends of the water conveyor 35 are connected to the cooling pipe 32 respectively. A valve 36 is installed at the bottom of the water conveyor 35. The valve 36 on the water conveyor 35 can control the inflow and outflow of cooling water, making it convenient to replace the cooling water in the cooling mechanism 3.

[0031] Among them, reference Figures 1 to 6 The protective outer shell 14 has flameout seams 141 on opposite sides. The protective cavity 13 has an air inlet 131 and an air outlet 132 on opposite sides. The air inlet 131 and the air outlet 132 are equipped with fans 133 to accelerate airflow. The air inlet 131, the air outlet 132 and the fans 133 on the protective cavity 13 are used to quickly exchange the air inside and outside the protective cavity 13 to prevent the temperature inside the protective cavity 13 from getting too high.

[0032] Furthermore, refer to Figures 1 to 6 A high-voltage generator 21 is fixedly installed on the fork section 2. The output end of the high-voltage generator 21 is connected to the non-insulated part of the fork section 2 through a wire. The high-voltage generator 21 is used to release the electrical energy of a single electrode, to neutralize the static electricity generated when the fork section 2 is working, and to prevent excessive static voltage from causing discharge and creating a fire risk.

[0033] Furthermore, refer to Figures 1 to 6 The junctions of the metal parts of the fork section 2 are covered with soft metal to prevent the hard metal parts from generating sparks that could ignite flammable and explosive substances during friction, impact or contact.

[0034] Working principle and usage process of this utility model:

[0035] The personnel compartment 1 of this explosion-proof forklift is where the operator works, and the fork compartment 2 is where the forks are used to move goods. The operator is located in the cab 12 on the main structure 11 of the personnel compartment 1. The protective cavity 13 is opened on the main structure 11. Electrical equipment such as motors, controllers, and switches are prone to generating ignition sources due to electric arc discharge, overload heating, short circuit sparks, etc. during operation. The operating environment of explosion-proof forklifts often contains flammable gases, dust, or vapors. Once a source of ignition comes into contact with these substances and reaches an explosive concentration, it can trigger a violent explosion. The protective shell 14 in the protective cavity 13 encloses the more dangerous electrical equipment in the explosion-proof forklift, blocking the contact between potential ignition sources from the electrical equipment and the external flammable and explosive environment, thus limiting the accident to a smaller area. In the cooling mechanism 3, the cooling water in the cooling pipes 31 and 32 circulates under the action of the water pump 33. The cooling pipe 31 is located inside the protective shell 14, where the cooling water absorbs the heat generated by the electrical equipment inside the protective shell 14. The cooling pipe 32 is located on the bottom surface of the main structure 11 and is in contact with the outside, allowing it to release the heat absorbed by the cooling water and achieve the purpose of lowering the cooling water temperature. During the circulation of the cooling water, the heat in the protective shell 14 is continuously carried to the outside, cooling the internal space of the protective shell 14. The heat-conducting plate 34 has excellent thermal conductivity and can quickly absorb the heat inside the protective shell 14. The heat-conducting plate 34 wraps around the cooling pipe 31, which is beneficial for... Heat is transferred to the cooling water in the cooling pipe 31. In summary, the heat-conducting plate 34 can significantly improve the working efficiency of the cooling mechanism 3. The valve 36 on the water pipe 35 can control the inflow and outflow of cooling water, facilitating the replacement of cooling water in the cooling mechanism 3. The flameout gap 141 is a key safety structure. While ensuring ventilation of the protective shell 14, it also allows flames and high-temperature gases to spread outward through gaps or joints in the equipment shell when a flammable gas, vapor, or dust explosion occurs due to a malfunction inside the equipment. The design of the flameout gap 141 utilizes the fire... The energy attenuation effect of the flame as it propagates in a narrow channel lowers its temperature below the ignition point of the combustible material. The friction and heat exchange between the channel wall and the flame consume the flame's energy, eventually extinguishing the flame and preventing it from spreading to the external environment. The air inlet 131, air outlet 132, and fan 133 on the protective cavity 13 are used to quickly exchange the air inside and outside the protective cavity 13 to prevent the temperature inside the protective cavity 13 from becoming too high. The high-voltage generator 21 on the fork section 2 is used to release the electrical energy of the single electrode to neutralize the static electricity generated when the fork section 2 is working.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof forklift for use in coal mines, comprising a personnel carrier (1) and a fork section (2) fixedly disposed on the side of the personnel carrier (1), characterized in that: The manned unit (1) includes a main structure (11), a driver's cab (12) set on the main structure (11), and a protective cavity (13) located below the driver's cab (12) in the main structure (11). A protective shell (14) made of anti-explosion alloy material for placing electrical equipment is fixedly installed in the protective cavity (13). A cooling mechanism (3) is provided on the protective shell (14). The cooling mechanism (3) includes a cooling pipe (31) set in the protective shell (14) for reducing the internal temperature of the protective shell (14), a cooling pipe (32) set outside the protective shell (14), and a water pump (33) fixedly installed on the outer wall of the protective shell (14). One end of the cooling pipe (32) is connected to the input end of the water pump (33), and both ends of the cooling pipe (31) pass through the protective shell (14) and are connected to the output ends of the cooling pipe (32) and the water pump (33) respectively.

2. The explosion-proof forklift for use in coal mines according to claim 1, characterized in that: The cooling mechanism (3) also includes a heat-conducting plate (34) fixedly installed inside the protective shell (14), and the cooling pipe (31) is fixedly installed inside the heat-conducting plate (34).

3. The explosion-proof forklift for use in coal mines according to claim 2, characterized in that: The heat-conducting plate (34) is made of a composite material of metal and graphite.

4. The explosion-proof forklift for use in coal mines according to claim 3, characterized in that: The cooling pipe (32) is fixedly installed on the bottom surface of the main structure (11).

5. The explosion-proof forklift for use in coal mines according to claim 4, characterized in that: A water conveyor (35) is fixedly installed on the bottom surface of the main structure (11). The two ends of the water conveyor (35) are connected to the cooling pipe (32) respectively. A valve (36) is installed at the bottom of the water conveyor (35).

6. The explosion-proof forklift for use in coal mines according to claim 5, characterized in that: The protective shell (14) has flameout seams (141) on opposite sides. The protective cavity (13) has an air inlet (131) and an air outlet (132) on opposite sides. The air inlet (131) and the air outlet (132) are equipped with fans (133) to accelerate airflow.

7. The explosion-proof forklift for use in coal mines according to claim 1, characterized in that: A high-voltage generator (21) is fixedly installed on the fork section (2), and the output end of the high-voltage generator (21) is connected to the non-insulated part of the fork section (2) through a wire.

8. The explosion-proof forklift for use in coal mines according to claim 7, characterized in that: The junctions of the metal parts of the fork section (2) are covered with soft metal.

Images