Explosion-proof control box and explosion-proof forklift

Abstract

The present invention provides an explosion-proof control box and an explosion-proof forklift, belonging to the technical field of explosion-proof forklifts, comprising an explosion-proof housing, the explosion-proof housing comprising a first mounting surface and a second mounting surface arranged adjacent to each other, and a third mounting surface arranged opposite the first mounting surface, the first mounting surface being mounted with a direction switch assembly, the second mounting surface being mounted with a load switch assembly, and the third mounting surface being connected with a plurality of cable lead-in assemblies, wherein the third mounting surface is assembled with the forklift and connected to the forklift control system via the cable lead-in assemblies, and the direction switch assembly and the load switch assembly are both arranged toward the cab. The present invention integrates multiple switch assemblies within the explosion-proof housing so that the entire control switch action is located within the explosion-proof control box, which not only ensures the stability of the action of each switch assembly but also greatly improves the overall explosion-proof performance of the explosion-proof control box.

Description

Technical Field

[0001] The present invention belongs to the technical field of explosion-proof forklifts, and in particular relates to an explosion-proof control box and an explosion-proof forklift. Background Art

[0002] With the development of the logistics industry, forklifts are becoming increasingly common. Through the organic combination of hydraulics, electrical systems, and mechanics, forklifts can achieve a variety of actions, including moving, turning, mast lifting, forward movement, tilting, and sideways movement, ensuring safe and efficient loading and unloading of goods. However, the switch components of existing forklifts are mostly installed directly in the forklift's control room. Each switch component is independently set. This is not conducive to the driver's precise control on the one hand, and also leads to a low overall explosion-proof rating for the forklift on the other hand. This greatly limits the application of forklifts and is not conducive to the promotion and use of forklifts in special environments. Therefore, there is an urgent need for an explosion-proof control box and explosion-proof forklift with a high explosion-proof rating and precise operation. Summary of the Invention

[0003] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose an explosion-proof control box and an explosion-proof forklift with a high explosion-proof grade and precise reversing operation.

[0004] The objectives of the present invention can be achieved through the following technical solutions: An explosion-proof control box, installed on a forklift, comprising: an explosion-proof shell, the explosion-proof shell comprising a first mounting surface and a second mounting surface arranged adjacent to each other, and a third mounting surface arranged opposite to the first mounting surface, a direction switch assembly is installed on the first mounting surface, a load switch assembly is installed on the second mounting surface, and a plurality of cable entry assemblies are connected to the third mounting surface, wherein the third mounting surface is assembled with the forklift and is connected to the forklift control system through the cable entry assembly, and the direction switch assembly and the load switch assembly are both arranged toward the direction of the cab.

[0005] In the above-mentioned explosion-proof control box, the directional switch assembly includes a directional switch structure and a reversing light switch structure, and an instrument box is arranged between the directional switch structure and the reversing light switch structure, wherein the connection between the directional switch structure, the reversing light switch structure and the instrument box and the explosion-proof shell is provided with an explosion-proof surface.

[0006] In the above-mentioned explosion-proof control box, the load switch assembly includes a lighting switch structure and a horn switch structure, and the lighting switch structure and the horn switch structure are both arranged perpendicular to the second mounting surface, wherein the connections between the lighting switch structure and the horn switch structure and the explosion-proof shell are both provided with explosion-proof surfaces.

[0007] In the above-mentioned explosion-proof control box, the direction switch structure includes a first spindle assembly, the first spindle assembly includes a first end portion located inside the explosion-proof control box, at least one direction switch is connected to the first end portion of the first spindle assembly, and a first limit assembly is embedded in the first spindle assembly, wherein two limit portions are relatively arranged on the first limit assembly, and one of the limit portions is provided with multiple limit portions, and the two limit portions are gradually engaged by the first spindle assembly to control the first end portion to open the direction switch step by step.

[0008] In the above-mentioned explosion-proof control box, the limiting part includes a first limiting part and a second limiting part distributed along the axial direction of the first main shaft assembly, wherein a floating structure is provided at the first limiting part, and the second limiting part includes a connecting part adapted to the floating structure, and the first end is controlled to open the direction switch step by step through the snap-fit cooperation between the floating structure and the connecting part.

[0009] In the above-mentioned explosion-proof control box, a plurality of second limiting parts are provided, and at least one first limiting part is provided. The step-by-step opening of the directional switch is controlled by the step-by-step engagement between the first limiting part and the second limiting part.

[0010] In the above-mentioned explosion-proof control box, the lighting switch structure includes a mounting shell and a second spindle assembly, a cavity for the movement of the second spindle assembly is provided in the mounting shell, one end of the second spindle assembly is arranged in the explosion-proof control box and is connected to the lighting switch, wherein the horizontal projection of the second spindle assembly and the horizontal projection of the lighting switch have an overlapping area, and a third end portion located at the second spindle assembly and a fourth end portion adjustably connected to the third end portion are provided in the overlapping area, the fourth end portion is provided at one end of the lighting switch and moves along the stroke movement direction of the lighting switch, and the movement stroke of the lighting switch is controlled by the adjustable connection between the third end portion and the fourth end portion.

[0011] In the above-mentioned explosion-proof control box, an adjustment structure is connected to the fourth end near the third end, wherein the third end is nested in the fourth end, and the relative distance between the third end and the fourth end is controlled by the adjustment structure.

[0012] In the above-mentioned explosion-proof control box, a first clamping structure is provided at the third end, and a second clamping structure connected to the first clamping structure is provided at the fourth end. A clamping groove for clamping the second clamping structure is provided in the first clamping structure, wherein the clamping groove is semi-open, and the second clamping structure is connected to the first clamping structure along the clamping groove and is automatically locked by the adjustment structure.

[0013] The present invention also provides an explosion-proof forklift, comprising: the above-mentioned explosion-proof control box, wherein the explosion-proof control box is installed on the explosion-proof forklift, and the third mounting surface is connected to the forklift, and is electrically connected to the control system in the forklift through the cable introduction assembly.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The explosion-proof control box provided by the present invention integrates multiple switch components into an explosion-proof housing, so that the entire control switch action is located within the explosion-proof control box. This not only ensures the stability of the action of each switch component, but also greatly improves the overall explosion-proof performance of the explosion-proof control box. At the same time, the direction switch component and the load switch component are separated on two adjacent mounting surfaces, so that the switch components of the entire explosion-proof control box are reasonably and evenly distributed, the switch components do not interfere with each other, and the structure is compact, so that the driver can easily operate the switch components during driving, and the operation is smooth and convenient. The entire explosion-proof control box has a reasonable structure, the internal switch components are evenly distributed, and the humanized design greatly improves the explosion-proof performance and driving comfort.

[0016] 2. By providing explosion-proof surfaces at the connection between each switch structure and the explosion-proof shell, the setting of multiple explosion-proof surfaces makes the overall connection of the explosion-proof control box tight, with good explosion-proof performance and high safety performance. It can be applied to various use environments and has strong practicality.

[0017] 3. By setting a limit part in the directional switch structure to multiple, the two limit parts can be gradually engaged when they move relative to each other, thereby controlling the first end to gradually open the directional switch. The step-by-step reversing operation is achieved through the mechanical structure, and the action is stable and efficient, which greatly improves the working stability and explosion-proof performance of the entire directional switch.

[0018] 4. By setting a first floating structure at the first limit part and a connecting part at the second limit part, and controlling the step-by-step opening of the direction switch through the snap-fitting cooperation between the first floating structure and the connecting part, the first floating structure is set at the first limit part, and the first limit part can float up and down under the action of the first floating structure, that is, it drives the gradual snap-fitting movement of the first limit part and the second limit part, and the movement is smooth and precise, avoiding the influence of locking of the two limit parts during relative movement on the opening of the direction switch.

[0019] 5. The direction switches are opened or closed by the rotation of the first spindle assembly, and directional shifting is achieved through the relative movement of the spherical first protrusion and the third groove. While ensuring the normal opening and closing of the direction switch, fixed-point positioning shifting can also be achieved, and the shifting gear position can be accurately controlled to avoid switching failure caused by excessive or insufficient rotation, greatly improving the control accuracy and working stability of the entire explosion-proof directional switch.

[0020] 6. By arranging an adjustably connected second main shaft assembly and the lighting switch on the lighting switch structure, the relative position of the fourth end and the third end is adjusted in advance before assembly, thereby controlling the relative position of the switch shaft and the internal contacts, that is, adjusting the movement stroke of the lighting switch, ensuring that the movement of the lighting switch is accurate and reliable, and the operation is efficient and stable. It can be applied to various types of lighting switches and has a wide range of applicability.

[0021] 7. The relative position of the adjustment structure and the fourth end portion is adjusted through the adjustment portion, thereby adjusting the relative position of the third end portion and the fourth end portion. After locking their relative positions through the locking portion, the relative position of the fourth end portion and the internal contact of the lighting switch can be fixed, that is, the relative position of the switch shaft and the internal contact on the lighting switch is adjusted, and the accuracy of the relative position of the switch shaft and the internal contact is ensured, that is, the accuracy and reliability of the movement process of the lighting switch is ensured, so that the lighting switch can be turned on different switches according to user needs under the pulling force of the second main shaft assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of embodiment 1 of the present invention.

[0023] Figure 2 It is a partial cross-sectional schematic diagram of embodiment 1 of the present invention.

[0024] Figure 3 It is another partial cross-sectional schematic diagram of the first embodiment of the present invention.

[0025] Figure 4 It is a schematic diagram of the direction switch structure of embodiment 1 of the present invention.

[0026] Figure 5 It is a schematic cross-sectional view of the directional switch structure according to the first embodiment of the present invention.

[0027] Figure 6 This is a partially enlarged schematic diagram A of the first embodiment of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the first main shaft and the second limiting part of embodiment 1 of the present invention.

[0029] Figure 8 It is a structural diagram of a lighting switch according to the first embodiment of the present invention.

[0030] Figure 9 It is a schematic cross-sectional view of the lighting switch structure according to the first embodiment of the present invention.

[0031] Figure 10 This is a partially enlarged schematic diagram B of the first embodiment of the present invention.

[0032] Figure 11 It is a structural schematic diagram of the second spindle assembly of embodiment 1 of the present invention.

[0033] Figure 12 It is a schematic diagram of the adjustment structure of embodiment 1 of the present invention.

[0034] Figure 13 This is a partially enlarged schematic diagram C of the first embodiment of the present invention.

[0035] Figure 14 It is a schematic diagram of the end cover structure of embodiment 1 of the present invention.

[0036] Figure 15 This is a schematic diagram of the interior of a lighting switch according to the first embodiment of the present invention.

[0037] Figure 16 It is a schematic diagram of the overall structure of embodiment 2 of the present invention.

[0038] In the figure, 100, explosion-proof control box; 200, explosion-proof housing; 210, first mounting surface; 220, second mounting surface; 230, third mounting surface; 300, direction switch structure; 310, first spindle assembly; 311, first end; 312, first spindle; 313, shift block; 314, second end; 315, handle; 320, direction switch; 330, first limit assembly; 331, first limit part; 332, second limit part; 333, connection 334, second groove; 335, third groove; 336, first floating structure; 336a, first groove; 336b, first protrusion; 336c, first elastic member; 337, stopper; 400, reversing light switch structure; 410, instrument box; 500, lighting light switch structure; 510, mounting housing; 511, cavity; 520, second spindle assembly; 521, first clamping structure; 522, clamping groove; 522a, first clamping groove; 522 b. Second clamping groove; 523. Second main shaft; 524. Guide sleeve; 525. Sealing ring; 526. End cover; 527. Mounting groove; 528. Mounting hole; 529. Switch handle; 530. Second limiting assembly; 531. Third limiting portion; 532. Fourth limiting portion; 533. Fourth groove; 534. Second protrusion; 535. Second elastic member; 540. Light switch; 541. Second clamping structure; 542. Adjustment structure; 542a. Adjustment Part; 542b, locking part; 542c, through hole; 543, switch shaft; 544, connecting nut; 545, internal contact; 600, horn switch structure; 700, cable entry assembly; 800, explosion-proof surface; 810, first explosion-proof surface; 820, second explosion-proof surface; 830, third explosion-proof surface; 840, fourth explosion-proof surface; 850, fifth explosion-proof surface; 860, sixth explosion-proof surface; 870, seventh explosion-proof surface; 880, eighth explosion-proof surface; 900, forklift. DETAILED DESCRIPTION

[0039] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0040] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] Example 1

[0042] like Figures 1 to 16As shown, the present invention provides an explosion-proof control box 100, which is installed on a forklift 900 and includes: an explosion-proof shell 200, the explosion-proof shell 200 including a first mounting surface 210 and a second mounting surface 220 arranged adjacent to each other, and a third mounting surface 230 arranged opposite to the first mounting surface 210, a direction switch 320 component is installed on the first mounting surface 210, a load switch component is installed on the second mounting surface 220, and a plurality of cable introduction components 700 are connected to the third mounting surface 230, wherein the third mounting surface 230 is assembled with the forklift 900 and is connected to the forklift 900 control system through the cable introduction component 700, and the direction switch 320 component and the load switch component are both arranged toward the cab direction.

[0043] In this embodiment, the explosion-proof control box 100 is provided with an explosion-proof shell 200, and a plurality of switch components are provided on the explosion-proof shell 200, including a direction switch 320 component and a load switch component, and is also connected to a cable introduction component 700. By integrating the plurality of switch components in the explosion-proof shell 200, the entire control switch action is located in the explosion-proof control box 100, which not only ensures the stability of the action of each switch component, but also greatly improves the overall explosion-proof performance of the explosion-proof control box 100. At the same time, the direction switch 320 component and the load switch component are separated and arranged on two adjacent mounting surfaces, so that the switch components of the entire explosion-proof control box 100 are reasonably and evenly distributed. Specifically, the first mounting surface 210 is the top surface of the explosion-proof control box 100, and the second mounting surface 220 is the front surface of the explosion-proof control box 100. The direction switch 320 component often needs to be pushed for reversing. Placing it on the top surface makes it easier for the driver to axially rotate it and control the reversing. The load switch component is often set as a push-pull or press-type switch. Placing it on the front surface makes it easier for the driver to push, pull, or press, without having to laboriously search for the switch. The operation is simple and fast, and the switch components do not interfere with each other, are reasonably distributed, and have a compact structure. In addition, the explosion-proof housing 200 is installed on the forklift 900 via the third mounting surface 230, and the direction switch 320 component and the load switch component are arranged toward the cab, so that the driver can easily operate the switch components during driving, and the operation is smooth and convenient. The entire explosion-proof control box 100 has a reasonable structure, the internal switch components are evenly distributed, and the humanized design greatly improves the explosion-proof performance and driving comfort.

[0044] Preferably, if Figures 1 to 16 As shown, the direction switch 320 assembly includes a direction switch 320 structure 300 and a reversing light switch structure 400, and an instrument box 410 is arranged between the direction switch 320 structure 300 and the reversing light switch structure 400, wherein the connection between the direction switch 320 structure 300, the reversing light switch structure 400 and the instrument box 410 and the explosion-proof shell 200 is provided with an explosion-proof surface 800.

[0045] Further preferably, the load switch assembly includes a lighting switch 540 structure 500 and a horn switch structure 600, and the lighting switch 540 structure 500 and the horn switch structure 600 are both arranged perpendicular to the second mounting surface 220, wherein the connections between the lighting switch 540 structure 500 and the horn switch structure 600 and the explosion-proof housing 200 are both provided with explosion-proof surfaces 800.

[0046] In this embodiment, a direction switch 320 structure 300 and a reversing light switch structure 400 are mounted on the first mounting surface 210, and an instrument box 410 is disposed between the two. The direction switch 320 structure 300 is used to control the reversing direction of the forklift 900, such as forward and reverse, and the reversing light switch structure 400 is used to control the switching of the reversing light, such as the left turn signal and the right turn signal. The direction switch 320 structure 300 and the reversing light switch structure 400 are configured in the same manner, both of which control the switch reversing direction through axial rotation. The instrument box 410 is disposed between the two reversing structures, making it convenient for the driver to observe the current driving status and reversing status, thereby preventing the driving operation from being affected by reversing errors. The second mounting surface 220 is mounted with a light switch 540 structure 500 and a horn switch structure 600. The light switch 540 is used to control the opening and switching of vehicle lights, such as low beam and high beam. The light switch 540 is a pull-out switch, and the horn switch is a push-button switch. Both are mounted on the second mounting surface 220, which faces the driver. The driver can control the light switch 540 and the horn switch simultaneously while driving. Operation is simple and fast, and does not affect driving operations. The humanized design provides a comfortable driving experience. At the same time, each switch structure is connected to the explosion-proof housing 200 with a flameproof surface 800. The provision of multiple flameproof surfaces 800 ensures that the explosion-proof control box 100 is tightly connected as a whole, has good explosion-proof performance, and high safety performance. It is suitable for various usage environments and has strong practicality.

[0047] Preferably, if Figures 4 to 7 As shown, the direction switch 320 structure 300 includes a first main shaft 312 component 310, and the first main shaft 312 component 310 includes a first end 311 located inside the explosion-proof control box 100. At least one direction switch 320 is connected to the first end 311 of the first main shaft 312 component 310, and a first limit component 330 is embedded in the first main shaft 312 component 310, wherein two limit parts are relatively arranged on the first limit component 330, and one of the limit parts is provided with multiple limit parts, and the two limit parts are driven to be gradually engaged by the first main shaft 312 component 310, thereby controlling the first end 311 to gradually open the direction switch 320.

[0048] In this embodiment, the direction switch 320 is set inside the explosion-proof control box 100, and the relative movement of the two limit parts is used to gradually control the first end 311 located inside the explosion-proof control box 100 to open different direction switches 320, thereby controlling the direction of travel of the vehicle, so that the entire switch control action is set inside the explosion-proof control box 100. At the same time, one of the limit parts is set to multiple, so that when the two limit parts move relative to each other, they can be gradually engaged, thereby controlling the first end 311 to gradually open the direction switch 320, and realizing step-by-step reversing operation through mechanical structure. The action is stable and efficient, which greatly improves the working stability and explosion-proof performance of the entire direction switch 320.

[0049] Preferably, if Figures 4 to 7 As shown, the limiting portion includes a first limiting portion 331 and a second limiting portion 332 axially distributed along the first main shaft 312 component 310, wherein a first floating structure 336 is provided at the first limiting portion 331, and the second limiting portion 332 includes a connecting portion 333 adapted to the first floating structure 336, and the first end portion 311 is controlled to gradually open the direction switch 320 through the snap-fit cooperation between the first floating structure 336 and the connecting portion 333.

[0050] In this embodiment, a first floating structure 336 is provided at the first limiting portion 331, a connecting portion 333 is provided at the second limiting portion 332, and the direction switch 320 is controlled to open step by step through the snap-fitting cooperation between the first floating structure 336 and the connecting portion 333. The first floating structure 336 is provided at the first limiting portion 331, and the first limiting portion 331 can float up and down under the action of the first floating structure 336, that is, it drives the gradual snap-fitting movement of the first limiting portion 331 and the second limiting portion 332, and the movement is smooth and precise, thereby avoiding the opening of the direction switch 320 being affected by the locking of the two limiting portions during relative movement.

[0051] Preferably, if Figures 4 to 7 As shown, there are multiple second limiting parts 332 and at least one first limiting part 331 . The direction switch 320 is opened step by step by step through the step-by-step engagement between the first limiting part 331 and the second limiting part 332 .

[0052] In this embodiment, when the second limiting portion 332 is set to multiple, that is, the connecting portion 333 is set to multiple, the first limiting portion 331 can be set to one or more. When the first main shaft 312 component 310 rotates, the first limiting portion 331 and the second limiting portion 332 rotate relative to each other, and the first floating structure 336 is gradually engaged with the first limiting portion 331 to achieve a step-by-step engaging movement, thereby controlling the step-by-step movement of the first main shaft 312 component 310, driving the direction switch 320 to open step by step, with precise operation, stable and efficient work.

[0053] Preferably, if Figures 4 to 7 As shown, the first limiting portion 331 is provided with a first groove 336a for housing the first floating structure 336, wherein the first floating structure 336 includes a first protrusion 336b engaged with the connecting portion 333 and a first elastic member 336c disposed in the first groove 336a, and the two ends of the first elastic member 336c are respectively in contact with the first protrusion 336b and the first groove 336a.

[0054] Further preferably, the first protrusion 336b is provided in a spherical structure, and the connecting portion 333 is adapted to the spherical structure.

[0055] In this embodiment, a first groove 336a is provided on the first limiting portion 331, and the first floating structure 336 is arranged in the first groove 336a. The first floating structure 336 includes a first convex portion 336b and a first elastic member 336c abutting against the first convex portion 336b. The second limiting portion 332 is recessed with a connecting portion 333 adapted to the first convex portion 336b. Preferably, the connecting portion 333 is a recessed portion. The relative sliding movement of the first convex portion 336b on the connecting portion 333 controls the first end portion 311 to gradually open different direction switches 320, thereby realizing a step-by-step reversing action. Specifically, the second limiting portion 332 is fixedly connected to the first main shaft 312 component 310, and is preferably arranged in an integrated manner. The first limiting portion 331 is embedded in the first main shaft 312 component 310 and is arranged opposite to the second limiting portion 332, and the first limiting portion 331 can perform relative rotational movement with the first main shaft 312 component 310. When reversing is required, it is only necessary to toggle the first main shaft 312 component 310 to drive the second limiting portion 332 to move, so that it can perform relative rotational movement with the first limiting portion 331. Preferably, a first floating structure 336 is provided in the first limiting portion 331, and a plurality of connecting portions 333 are provided on the second limiting portion 332. Under the action of the first protrusion 336b and the first elastic member 336c, the first limiting portion 331 performs step-by-step movement along the plurality of connecting portions 333, and drives the first end portion 311 to open the direction switch 320, thereby realizing step-by-step reversing action. The arrangement of the first protrusion 336b and the connecting portion 333 allows the direction switch 320 to be opened stably and gradually during the reversing process, thereby avoiding damage to the direction switch 320 due to excessive opening or reversing failure due to incomplete opening, thereby affecting work efficiency.

[0056] Furthermore, the second stopper 332 is disc-shaped and surrounds the first spindle 312 assembly 310. Multiple connecting portions 333 are provided along the circumference of the second stopper 332. The number of connecting portions 333 corresponds to the shift gear position. If there are three gear positions (forward, reverse, and neutral), three connecting portions 333 are provided. If there are multiple gear positions, multiple connecting portions 333 are provided. Furthermore, the first protrusion 336b is configured as a spherical structure, and the connecting portion 333 is configured as a third groove 335. The rolling motion of the spherical structure and the third groove 335 controls the opening and closing of the different direction switches 320. Specifically, a first elastic member 336c is connected to the first protrusion 336b. When the first main shaft 312 assembly 310 drives the second stopper 332 to rotate, the first elastic member 336c causes the first protrusion 336b to be squeezed and rebounded by the second stopper 332 and squeezed into the adjacent third groove 335. Simultaneously, the first end 311 abuts the direction switch 320, turning on the direction switch 320 and achieving directional shifting. For example, the third groove 335 is sequentially provided with three grooves: a forward groove corresponding to the forward switch; a neutral groove corresponding to the neutral gear; and a reverse groove corresponding to the reverse switch. When the vehicle is in the neutral gear, the first end portion 311 is in contact with the forward switch 310, and the first end portion 311 is in contact with the reverse switch 320, thereby controlling the forward gear to be in the neutral gear. When the vehicle is in the reverse gear, the first end portion 311 is in contact with the reverse switch 320, thereby controlling the reverse gear to be in the neutral gear. When the vehicle is in the reverse gear, the first end portion 311 is in contact with the reverse switch 310, thereby controlling the reverse gear to be in the reverse gear. The direction switches 320 are opened or closed by rotating the first main shaft 312 component 310, and directional shifting is achieved through the relative movement of the spherical first protrusion 336b and the third groove 335. While ensuring that the direction switch 320 is opened and closed normally, fixed-point positioning shifting can also be achieved, and the shifting gear position can be accurately controlled to avoid switching failure caused by excessive or insufficient rotation, thereby greatly improving the control accuracy and working stability of the entire explosion-proof direction switch 320.

[0057] Preferably, if Figures 4 to 7 As shown, the first main shaft 312 assembly 310 includes a first main shaft 312 and a shift block 313 connected to the end of the first main shaft 312 , the shift block 313 is arranged at the first end 311 , wherein at least one direction switch 320 is connected to the shift block 313 .

[0058] Further preferably, the shift block 313 is configured in a long strip shape.

[0059] In this embodiment, the shift block 313 is provided in an elongated strip shape, so that during the rotation of the first main shaft 312, the shift block 313 abuts against different direction switches 320. Specifically, in the initial state, the shift block 313 is separated from the direction switch 320. When reversing is required, the first main shaft 312 is toggled to drive the shift block 313 to rotate, thereby controlling the shift block 313 to abut against different direction switches 320 to control the opening and closing of the different direction switches 320. The elongated strip shape of the shift block 313 allows the shift block 313 to abut against one direction switch 320 while separating from another direction switch 320. That is, when one direction switch 320 is turned on, the other direction switch 320 is turned off, thereby ensuring the operational stability of the individual direction switches 320.

[0060] Preferably, if Figures 4 to 7 As shown, the first main shaft 312 includes a second end portion 314 disposed outside the explosion-proof box, and the second end portion 314 is connected to a handle 315 for controlling the rotation of the first main shaft 312 .

[0061] In this embodiment, by providing a second end portion 314 on the first main shaft 312 and providing a handle 315 on the second end portion 314 for controlling the rotation of the first main shaft 312, the rotation of the entire first main shaft 312 can be controlled simply by rotating the handle 315, which makes the operation simple and convenient, and the switching is quick and efficient.

[0062] Preferably, if Figures 4 to 7 As shown, a stopper 337 is provided on the first limiting portion 331 at a side away from the first protrusion 336 b , and a second groove 334 corresponding to the stopper 337 is concavely provided on the second limiting portion 332 .

[0063] In this embodiment, a second groove 334 is recessed on the second limiting portion 332. The arrangement of the second groove 334 and the stop block 337 allows the second limiting portion 332 to be limited when the reversing reaches the limit, thereby avoiding damage to the direction switch 320 due to excessive rotation of the first main shaft 312, thereby ensuring the working stability of the entire explosion-proof direction switch 320.

[0064] Preferably, if Figures 8 to 15As shown, the lighting switch 540 structure 500 includes a mounting shell 510 and a second main shaft 523 assembly 520, and a cavity 511 for the movement of the second main shaft 523 assembly 520 is provided in the mounting shell 510. One end of the second main shaft 523 assembly 520 is arranged in the explosion-proof control box 100 and is connected to the lighting switch 540, wherein the horizontal projection of the second main shaft 523 assembly 520 and the horizontal projection of the lighting switch 540 have an overlapping area, and a third end of the second main shaft 523 assembly 520 and a fourth end adjustably connected to the third end are provided in the overlapping area. The fourth end is provided at one end of the lighting switch 540 and moves along the stroke movement direction of the lighting switch 540, and the movement stroke of the lighting switch 540 is controlled by the adjustable connection between the third end and the fourth end.

[0065] In this embodiment, the lighting switch 540 structure 500 includes a mounting shell 510 and a second main shaft 523 component 520 that moves along the mounting shell 510. The lighting switch 540 is turned on and off by the connection between the second main shaft 523 component 520 and the lighting switch 540, and the lighting switch 540 is arranged in the explosion-proof control box 100, so that the switching action of the entire lighting switch 540 structure 500 is completed in the explosion-proof control box 100, with good airtightness and high explosion-proof performance. The second main shaft 523 component 520 and the lighting switch 540 are adjustable. The relative distance between the second main shaft 523 component 520 and the lighting switch 540 is controlled by the adjustable connection, thereby adjusting the movement stroke of the lighting switch 540. Specifically, the lighting switch 540 structure 500 controls the turning on and off of the lighting switch 540 by the second main shaft 523 component 520, while the lighting switch 540 is mostly turned on and off. The movement of the closing shaft 543 in the lighting switch 540 contacts different internal contacts 545, thereby turning on different switches. However, the relative position of the switch shaft 543 and the internal contacts 545 is easily affected by the processing technology and may deviate, resulting in the switch shaft 543 and the internal contacts 545 not being in contact with each other, and the switch cannot be turned on normally. However, the lighting switch 540 structure 500 provided in this embodiment has a third end portion provided on the second main shaft 523 assembly 520, and a fourth end portion provided on the switch shaft 543 of the lighting switch 540. By providing an adjustably connected second main shaft 523 assembly 520 and the lighting switch 540, the relative position of the fourth end portion and the third end portion can be adjusted in advance before assembly, thereby controlling the relative position of the switch shaft 543 and the internal contacts 545, that is, adjusting the movement stroke of the lighting switch 540, ensuring that the movement of the lighting switch 540 is accurate and reliable, and the operation is efficient and stable. The lighting switch 540 can be applied to various types of lighting switches 540 and has a wide range of applicability. In addition, there is an overlapping area between the horizontal projection of the second main shaft 523 component 520 and the horizontal projection of the lighting switch 540, that is, there is an overlapping area between the installation positions of the second main shaft 523 component 520 and the lighting switch 540 in the horizontal direction. Under the premise of ensuring the movement range of the lighting switch 540, the overall size of the lighting switch 540 structure 500 is small, the structure is compact and reasonable, and it is suitable for installation in most explosion-proof control boxes 100, with wide adaptability and high practicality.

[0066] Preferably, if Figures 8 to 15 As shown, an adjustment structure 542 is connected to the fourth end near the third end, wherein the third end is nested in the fourth end, and the relative distance between the third end and the fourth end is controlled by the adjustment structure 542.

[0067] Further preferably, the adjustment structure 542 includes an adjustment portion 542a connected to the fourth end and a locking portion 542b connected to the third end, and the relative distance between the third end and the fourth end is adjusted by the adjustment portion 542a, and the relative position of the third end and the fourth end is locked by the locking portion 542b.

[0068] In this embodiment, the second spindle 523 assembly 520 and the lighting switch 540 are nested in connection, the third end is nested in the fourth end, the fourth end is connected to an adjustment structure 542, and after the adjustment structure 542 is connected, it is nested in the third end, and the relative distance between the third end and the fourth end is controlled by the adjustment structure 542. Specifically, the adjustment structure 542 includes an adjustment portion 542a and a locking portion 542b. The adjustment portion 542a is used to adjust the relative position of the adjustment structure 542 and the fourth end, thereby adjusting the relative distance between the third end and the fourth end. The relative position of the end portion is adjusted, and after locking its relative position by the locking portion 542b, the relative position of the fourth end portion and the internal contact 545 of the lighting switch 540 can be fixed, that is, the relative position of the switch shaft 543 and the internal contact 545 on the lighting switch 540 is adjusted, and the accuracy of the relative position of the switch shaft 543 and the internal contact 545 is ensured, that is, the accuracy and reliability of the movement process of the lighting switch 540 is ensured, so that the lighting switch 540 can open different switches according to user needs under the pulling force of the second main shaft 523 component 520.

[0069] Preferably, if Figures 8 to 15 As shown, the second main shaft 523 component 520 and the lighting switch 540 are nested and connected, and the third end is nested in the fourth end. The fourth end is connected to an adjustment structure 542, and after the adjustment structure 542 is connected, it is nested in the third end. The relative distance between the third end and the fourth end is controlled by the adjustment structure 542. Specifically, the adjustment structure 542 includes an adjustment portion 542a and a locking portion 542b. The adjustment portion 542a is used to adjust the relative position of the adjustment structure 542 and the fourth end, thereby adjusting the relative distance between the third end and the fourth end. The relative position of the fourth end portion and the internal contact 545 of the lighting switch 540 can be fixed after locking the relative position by the locking portion 542b, that is, the relative position of the switch shaft 543 on the lighting switch 540 and the internal contact 545 is adjusted, thereby ensuring the accuracy of the relative position of the switch shaft 543 and the internal contact 545, that is, ensuring the accuracy and reliability of the movement process of the lighting switch 540, so that the lighting switch 540 can open different switches according to user needs under the pulling force of the second main shaft 523 component 520.

[0070] Preferably, if Figures 8 to 15As shown, the adjustment structure 542 is provided in a cylindrical structure, and a through hole 542c is opened in the cylindrical structure, and is nested on the fourth end through the through hole 542c.

[0071] Further preferably, the adjusting portion 542a is provided at the circumferential surface of the through hole 542c, and the locking portion 542b is provided at the end of the cylindrical structure.

[0072] Further preferably, a first clamping structure 521 is provided at the third end, a second clamping structure 541 connected to the first clamping structure 521 is provided at the fourth end, and the through hole 542c is threadedly connected to the second clamping structure 541.

[0073] In this embodiment, the adjustment structure 542 is threadedly connected to the second clamping structure 541 through the through hole 542c. Specifically, before assembly, the adjustment structure 542 is assembled on the second clamping structure 541, and the adjustment structure 542 is screwed onto the second clamping structure 541 through the thread of the through hole 542c. The relative distance between the adjustment structure 542 and the second clamping structure 541 is adjusted. The second clamping structure 541 is the end of the switch shaft 543 mentioned above. During operation, the contact on the switch shaft 543 is in contact with the inside of the lighting switch 540. The contacts 545 are in contact with each other, thereby controlling the opening of the switch. After adjusting the relative distance between the adjustment structure 542 and the second clamping structure 541, it is installed as a whole into the first clamping structure 521. Under the action of the locking part 542b, the relative position of the first clamping structure 521 and the second clamping structure 541 can be locked, thereby controlling the relative position of the switch shaft 543 and the internal contact 545 of the lighting switch 540, ensuring that the contact on the switch shaft 543 is adapted to the internal contact 545 of the lighting switch 540, and ensuring the accuracy and stability of the switch action.

[0074] Preferably, if Figures 8 to 15 As shown, a clamping groove 522 for the second clamping structure 541 to be clamped is provided in the first clamping structure 521, wherein the clamping groove 522 is semi-open, and the second clamping structure 541 is connected to the first clamping structure 521 along the clamping groove 522 and is automatically locked by the adjustment structure 542.

[0075] Further preferably, the first clamping structure 521 is a disc-shaped structure, and the clamping groove 522 includes a first clamping groove 522a arranged along the circumferential direction of the first clamping structure 521 and a second clamping groove 522b arranged along the end of the first clamping structure 521, and the first clamping groove 522a is connected to the second clamping groove 522b.

[0076] Further preferably, a radial dimension of the adjustment structure 542 is smaller than a lengthwise dimension of the first engaging groove 522 a and larger than a widthwise dimension of the second engaging groove 522 b .

[0077] In this embodiment, the second clamping structure 541 is nested and connected to the inside of the first clamping structure 521 through the clamping groove 522. The clamping groove 522 includes a first clamping groove 522a and a second clamping groove 522b that are connected to each other. The first clamping groove 522a and the second clamping groove 522b are connected to form a T-shaped clamping groove 522. The first clamping groove 522a is opened along the circumferential direction of the first clamping structure 521, and the second clamping groove 522b is set along the end of the first clamping structure 521. During assembly, the adjustment structure 542 and the second clamping structure 541 are pre-connected first, and then the whole is connected to the first clamping structure 521 along the first clamping groove 522a. The clamping structures 521 are clamped together, and the relative positions of the first clamping structure 521 and the second clamping structure 541 are fixed under the action of the locking part 542b. At the same time, the radial dimension of the adjustment structure 542 is set to be smaller than the length direction dimension of the first clamping groove 522a and larger than the width direction dimension of the second clamping groove 522b, so that the combined structure of the adjustment structure 542 and the second clamping structure 541 can be smoothly clamped with the first clamping structure 521 along the first clamping groove 522a, and clamped on the second clamping groove 522b, thereby ensuring the stability of the relative positions of the first clamping structure 521 and the second clamping structure 541.

[0078] Preferably, if Figures 8 to 15 As shown, a second limiting assembly 530 is provided in the mounting shell 510 , and the second limiting assembly 530 includes a third limiting portion 531 located on the second main shaft 523 assembly 520 and a fourth limiting portion 532 provided on the mounting shell 510 .

[0079] Further preferably, a plurality of third limiting portions 531 are provided.

[0080] Further preferably, a fourth groove 533 is recessed in the fourth limiting portion 532, and a second floating structure is provided in the fourth groove 533. The second floating structure includes a second convex portion 534 and a second elastic member 535, and the two ends of the second elastic member 535 are respectively abutted against the second convex portion 534 and the fourth groove 533.

[0081] In this embodiment, a second limit assembly 530 for controlling the limit of the lighting switch 540 is provided in the lighting switch structure 500. Specifically, the lighting switch 540 is externally connected to a load, which can be a lamp or other load that needs to be turned on. The lighting switch 540 includes a switch shaft 543 and internal contacts 545. The internal contacts 545 are provided in multiple numbers according to actual needs. The switch shaft 543 is also provided with contacts. When the switch shaft 543 is pulled, the switch shaft 543 gradually contacts different internal contacts. The contacts 545 are in contact with each other, thereby controlling the lighting switch 540 to turn on different switches step by step. Taking the light of a forklift 900 as an example, the lighting switch 540 has three internal contacts 545 arranged in sequence, which respectively control low beam, high beam and low beam plus high beam. When working, the switch shaft 543 is pulled by the second main shaft 523 component 520, driving the switch shaft 543 to contact each internal contact 545, and after the contact is in place, it is limited by the second limit component 530 and fixed in the contact position to ensure the stability of the light being turned on. The second limiting component 530 is provided with a second floating structure, so that during the pulling process of the second main shaft 523 component 520, the second main shaft 523 component 520 can be gradually clamped with the inside of the mounting shell 510, and the second floating structure is clamped on the third limiting portion 531 step by step. The second protrusion 534 is preferably a spherical structure, and the third limiting portion 531 is preferably a recess adapted to the second protrusion 534. The setting of the second limiting component 530 allows the switch shaft 543 to contact multiple internal contacts 545 step by step, realizing a step-by-step switching action, and the switching action is accurate, efficient, stable and orderly.

[0082] Preferably, if Figures 8 to 15 As shown, the second main shaft 523 assembly 520 includes a second main shaft 523 , a guide sleeve 524 is nested on the second main shaft 523 , and the guide sleeve 524 is arranged between the second main shaft 523 and the mounting housing 510 .

[0083] Further preferably, the guide sleeve 524 is snap-fitted and sealed with the mounting housing 510 , and a sealing ring 525 is provided in the guide sleeve 524 and is sleeved on the second main shaft 523 .

[0084] Further preferably, explosion-proof surfaces 800 are provided at the connecting surface between the guide sleeve 524 and the second main shaft 523 , and at the connecting surface between the guide sleeve 524 and the mounting shell 510 .

[0085] In this embodiment, the guide sleeve 524 is nested on the second main shaft 523 and is clamped and sealed with the mounting shell 510. At the same time, it is relatively fixed to the second main shaft 523 through the sealing ring 525. Specifically, when the second main shaft 523 component 520 pulls the light switch 540, the guide sleeve 524 and the second main shaft 523 are linked. Under the action of the guide sleeve 524, the second main shaft 523 can move stably along the axial direction of the mounting shell 510, avoiding failure of the switch to open due to deviation in the direction of movement. At the same time, the setting of the explosion-proof surface 800 and the sealing ring 525 greatly improves the overall explosion-proof performance. Even if electric sparks or explosions occur inside the light switch 540, the sparks can be prevented from overflowing under the action of the explosion-proof surface 800 and the sealing ring 525, thereby ensuring the explosion-proof performance of the entire light switch 540 structure 500.

[0086] Preferably, if Figures 8 to 15 As shown, a connecting nut 544 is further provided on the lighting switch 540 near the second clamping structure 541, and an end cover 526 is nested on the mounting shell 510 near the connecting nut 544. A mounting groove 527 is provided on one side of the end cover 526, and a mounting hole 528 is provided on the other side.

[0087] In this embodiment, an end cap 526 is nested at the junction of the mounting housing 510 and the light switch 540. Mounting slots 527 and mounting holes 528 are provided on either side of the end cap 526. During installation, after connecting the first engaging structure 521 to the second engaging structure 541, the connecting nut 544 is tightened. Preferably, a washer is attached to the side of the connecting nut 544 near the end cap 526. The end cap 526 is then inserted along the mounting slot 527 onto the switch shaft 543 and engaged with the mounting housing 510. After engagement with the mounting housing 510 is complete, a connecting screw is installed in the mounting hole 528 to lock the end cap 526 in place with the mounting housing 510. The provision of the end cap 526 makes the entire light switch 540 structure 500 quick and easy to install, convenient to assemble and disassemble, and simple to operate, significantly improving its overall practicality and efficiency.

[0088] Further preferably, a switch handle 529 is connected to one end of the second main shaft 523 located outside the explosion-proof control box 100. The switch handle 529 drives the second main shaft 523 to pull the light switch 540, thereby controlling the gradual opening of the light switch 540. Specifically, when the switch needs to be turned on in the first gear, the switch handle 529 is pulled once, so that the switch shaft 543 contacts the first position of the internal contact 545 of the light switch 540. The position of the switch handle 529 is fixed by the second limit assembly 530. When the switch needs to be turned on in the second gear, the switch handle 529 is pulled twice, and so on. The provision of the switch handle 529 makes the switch easy to open and close, and can be controlled by just pulling it easily, which is simple and fast to operate.

[0089] Further preferably, the explosion-proof control box 100 is provided with a plurality of explosion-proof surfaces 800, wherein a first explosion-proof surface 810 is provided at the connection between the direction switch 320 structure 300 and the explosion-proof housing 200, a second explosion-proof surface 820 is provided at the connection between the first main shaft 312 component 310 and the first limit component 330, the explosion-proof surface 800 at the reversing light switch structure 400 is provided with the same direction switch 320 structure 300, the lighting light switch 540 structure 500 and A third explosion-proof surface 830 is provided at the connection of the explosion-proof shell 200, a fourth explosion-proof surface 840 is provided at the connection surface between the guide sleeve 524 and the second main shaft 523, a fifth explosion-proof surface 850 is provided at the connection surface between the guide sleeve 524 and the mounting shell 510, a sixth explosion-proof surface 860 is provided at the connection surface between the horn switch structure 600 and the explosion-proof shell 200, and a seventh explosion-proof surface 870 is provided at the connection surface between the instrument box 410 and the explosion-proof shell 200.

[0090] Further preferably, a plurality of the cable entry assemblies 700 are provided, connected to the control system in the forklift 900 , and an eighth flameproof surface 880 is provided at the connection between each cable entry assembly 700 and the explosion-proof housing 200 .

[0091] In this embodiment, the provision of multiple explosion-proof surfaces 800 greatly improves the explosion-proof performance of the explosion-proof control box 100, which can reach the ExdIIBT4 explosion-proof level. It can not only work in an explosive gas environment, but also in a dust environment. It has a high explosion-proof level and a wide range of applications, which greatly improves the practicality of its installation carrier. In this embodiment, the explosion-proof control box 100 is installed on a forklift 900, which greatly improves the explosion-proof performance of the forklift 900 and enables the forklift 900 to be used in a variety of environments and has a wide range of applications.

[0092] Example 2

[0093] like Figures 1 to 16As shown, the present invention also provides an explosion-proof forklift 900, including the explosion-proof control box 100 described in Example 1, wherein the explosion-proof control box 100 is installed on the explosion-proof forklift 900, and the third mounting surface 230 is connected to the forklift 900, and is electrically connected to the control system in the forklift 900 through the cable introduction assembly 700.

[0094] In this embodiment, an explosion-proof control box 100 is installed on the forklift 900. By integrating the various switch structures in the explosion-proof control box 100 and providing explosion-proof surfaces 800 at each connection surface, on the one hand, the overall operation of the forklift 900 is made stable and efficient, and is not easily affected by the external environment; on the other hand, it also greatly improves the explosion-proof performance of the entire forklift 900, so that the forklift 900 can be used in a variety of explosion-proof environments, such as dust explosion-proof and gas explosion-proof, with a high explosion-proof level and a wide range of applications.

[0095] It should be noted that, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0096] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0097] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. An explosion-proof control box, characterized in that: Installed on a forklift, comprising: an explosion-proof housing, the explosion-proof housing comprising a first mounting surface and a second mounting surface disposed adjacent to each other, and a third mounting surface disposed opposite the first mounting surface, a direction switch assembly being mounted on the first mounting surface, a load switch assembly being mounted on the second mounting surface, and a plurality of cable entry assemblies being connected to the third mounting surface, wherein the third mounting surface is assembled with the forklift and connected to a forklift control system via the cable entry assemblies, and the direction switch assembly and the load switch assembly are both disposed toward the cab; The direction switch assembly includes a direction switch structure, which includes a first spindle assembly, the first spindle assembly including a first end portion located inside the explosion-proof control box, at least one direction switch connected to the first end portion of the first spindle assembly, and a first limit assembly embedded in the first spindle assembly, wherein two limit portions are relatively provided on the first limit assembly, one of which is provided with a plurality of limit portions, and the first spindle assembly drives the two limit portions to gradually engage, thereby controlling the first end portion to gradually open the direction switch; The limiting portion includes a first limiting portion and a second limiting portion distributed along the axial direction of the first spindle assembly, wherein the first limiting portion is provided with a floating structure, and the second limiting portion includes a connecting portion adapted to the floating structure, and the first end portion is controlled to gradually open the direction switch through the snap-fit engagement between the floating structure and the connecting portion; The load switch assembly includes a lighting switch structure and a horn switch structure, wherein the lighting switch structure and the horn switch structure are both arranged perpendicular to the second mounting surface, wherein the connections between the lighting switch structure and the horn switch structure and the explosion-proof housing are both provided with explosion-proof surfaces; The lighting switch structure includes a mounting shell and a second spindle assembly, a cavity for movement of the second spindle assembly is provided in the mounting shell, one end of the second spindle assembly is arranged in the explosion-proof control box and is connected to the lighting switch, wherein the horizontal projection of the second spindle assembly and the horizontal projection of the lighting switch have an overlapping area, a third end portion of the second spindle assembly and a fourth end portion adjustably connected to the third end portion are provided in the overlapping area, the fourth end portion is provided at one end of the lighting switch and moves along the stroke movement direction of the lighting switch, and the movement stroke of the lighting switch is controlled by the adjustable connection between the third end portion and the fourth end portion.

2. The explosion-proof control box according to claim 1, characterized in that: The directional switch assembly also includes a reversing light switch structure, and an instrument box is arranged between the directional switch structure and the reversing light switch structure. The connection between the directional switch structure, the reversing light switch structure and the instrument box and the explosion-proof housing is provided with an explosion-proof surface.

3. The explosion-proof control box according to claim 1, characterized in that: There are multiple second limiting parts, and at least one first limiting part is provided. The direction switch is controlled to be opened step by step through the step-by-step engagement between the first limiting part and the second limiting part.

4. The explosion-proof control box according to claim 1, characterized in that: An adjustment structure is connected to the fourth end near the third end, wherein the third end is nested in the fourth end, and the relative distance between the third end and the fourth end is controlled by the adjustment structure.

5. The explosion-proof control box according to claim 4, characterized in that: A first clamping structure is provided at the third end, and a second clamping structure connected to the first clamping structure is provided at the fourth end. A clamping groove for the second clamping structure to be clamped is provided in the first clamping structure, wherein the clamping groove is semi-open, and the second clamping structure is connected to the first clamping structure along the clamping groove and is automatically locked by the adjustment structure.

6. An explosion-proof forklift, characterized in that: The explosion-proof control box comprises the explosion-proof control box according to any one of claims 1 to 5, wherein the explosion-proof control box is installed on the explosion-proof forklift, and the third mounting surface is connected to the forklift, and is electrically connected to the control system in the forklift through the cable introduction assembly.

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