Explosion-proof screw air compressor

Abstract

The utility model belongs to the technical field of explosion-proof screw air compressors, and particularly relates to an explosion-proof screw air compressor which comprises an explosion-proof screw air compressor body and two rotating grooves, the two rotating grooves are symmetrically formed in the inner wall of the explosion-proof screw air compressor body, and fan blades are rotationally connected into the rotating grooves; the power assembly is located on the explosion-proof screw air compressor body and used for driving the two fan blades to rotate; the two dust suction ports are formed in the inner wall of the explosion-proof screw air compressor body and communicate with the outside; according to the explosion-proof screw air compressor, the problems that in the long-time use process, a large amount of external dust enters the explosion-proof screw air compressor and is attached to components such as the explosion-proof air storage tank in the explosion-proof screw air compressor, so that a user needs to manually clean the dust in the explosion-proof screw air compressor, and the dust in the explosion-proof screw air compressor cannot be cleaned easily are solved. However, due to the fact that dust is located in the explosion-proof screw air compressor, the cleaning difficulty is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion-proof screw air compressors, in particular to an explosion-proof screw air compressor. Background Art

[0002] Explosion-proof screw air compressor is a specially designed air compression equipment, mainly used in industrial environments that require explosion-proof performance.

[0003] For example, the Chinese patent with publication number CN220850020U discloses an explosion-proof screw air compressor, including a base, four brackets are fixedly connected to the top of the base, a sound insulation pad is fixedly connected between every two brackets, a heat sink is fixedly connected to the top of the bracket, a motor is fixedly connected to the top of the base, a screw compressor is fixedly connected to the top of the base, an explosion-proof gas tank is fixedly connected to the top of the base, a filter is fixedly connected to the top of the base, a control box is fixedly connected to one side of the bracket, and a wheel set is fixedly connected to the bottom of the base. The advantages of the utility model are: a wheel set is installed at the bottom of the base, which can conveniently move the position of the screw air compressor so that it can better complete the work, a sound insulation board is installed between every two brackets to reduce the noise generated by the screw air compressor when it is working and prevent noise pollution, and the air compressor has a simple and compact structure, good heat dissipation performance, strong controllability, and low maintenance cost.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: the interior of the above-mentioned explosion-proof screw air compressor is exposed to the outside world. During long-term use, a large amount of dust from the outside will enter the interior of the explosion-proof screw air compressor and adhere to the internal explosion-proof gas tank and other components. This requires the user to manually clean the dust inside the explosion-proof screw air compressor, but because the dust is inside the explosion-proof screw air compressor, it is difficult to clean. In view of this, we propose an explosion-proof screw air compressor. Utility Model Content

[0006] The purpose of the utility model is to provide an explosion-proof screw air compressor to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides an explosion-proof screw air compressor, comprising:

[0008] An explosion-proof screw air compressor body and two rotating grooves, wherein the two rotating grooves are symmetrically arranged on the inner wall of the explosion-proof screw air compressor body, and fan blades are rotatably connected in the rotating grooves;

[0009] A power assembly, which is located on the explosion-proof screw air compressor body and is used to drive the two fan blades to rotate;

[0010] Two dust suction ports, which are arranged on the inner wall of the explosion-proof screw air compressor body and are connected to the outside;

[0011] A fixed block, the fixed block is fixedly connected to the explosion-proof screw air compressor body, a slot connected to the outside is provided in the fixed block, a dust collecting box is inserted in the slot, a dust collecting groove connected to the slot is provided in the dust collecting box, and a dust filter cloth is fixedly connected in the dust collecting groove;

[0012] A fixing assembly, the fixing assembly is located in the dust box and is used to fix the dust box;

[0013] An installation groove is provided on the inner wall of the slot and communicates with the outside, an exhaust fan is fixedly connected in the installation groove, and an exhaust port of the exhaust fan is in contact with the bottom surface of the dust collecting box;

[0014] The ventilation pipe is fixedly connected to the top surface of the fixed block, and the inner cavity of the ventilation pipe is connected to the dust collecting groove, and the two ends of the ventilation pipe are respectively fixed to the inner walls of the two dust suction ports, and the inner cavity of the ventilation pipe is connected to the two dust suction ports.

[0015] Based on the above structure, by setting the rotating groove and the fan blade, it is ensured that the fan blade can rotate in the rotating groove, and by setting the power component, it is ensured that the user can drive the two fan blades to rotate through the power component, so that the two fan blades can raise the dust inside the explosion-proof screw air compressor body, and by setting the dust suction port, dust collecting slot, exhaust fan and ventilation pipe, it is ensured that when the user starts the exhaust fan, the exhaust port of the exhaust fan will exhaust the dust collecting slot, so that the dust collecting slot generates negative pressure, so that the exhaust fan can exhaust the explosion-proof screw air compressor body through the dust collecting slot, ventilation pipe and two dust suction ports. The dust raised in the screw air compressor body is absorbed and allowed to enter the dust collecting tank. The dust filter cloth is provided to ensure that when the dust is sucked into the dust collecting tank, the dust will be filtered in the dust collecting tank by the dust filter cloth. At the same time, clean air will be discharged to the outside. The slot and dust box are provided to ensure that the dust box can be inserted into the slot. The fixing component is provided to ensure that the user can fix the dust box in the slot through the fixing component to prevent the slot from being affected by vibration and moving to the outside.

[0016] In the above technical solution, further, the power assembly includes:

[0017] Two first sprockets, the two first sprockets are respectively rotatably connected to the two sides of the explosion-proof screw air compressor body, and one end of the two first sprockets penetrates the explosion-proof screw air compressor body and respectively extends into the two rotating grooves and is fixed to the two fan blades;

[0018] Two support frames, the two support frames are fixedly connected to the top surface of the explosion-proof screw air compressor body, a rotating rod is rotatably connected between the two support frames, two second sprocket wheels are fixedly connected to both ends of the rotating rod, two chains are respectively meshed between the two second sprocket wheels and the two first sprocket wheels, and a worm wheel is fixedly connected to the circumference of the rotating rod;

[0019] The motor is fixedly connected to the top surface of the explosion-proof screw air compressor body, and a worm meshing with the worm wheel is fixedly connected to the output shaft of the motor.

[0020] In this technical solution, it is ensured that when the two fan blades rotate, the two fan blades can lift up the dust on the components in the inner cavity of the explosion-proof screw air compressor body.

[0021] In the above technical solution, further, one end of the first sprocket is rotatably connected to the rotating groove.

[0022] In this technical solution, it is ensured that one end of the first sprocket can rotate normally in the rotation groove.

[0023] In the above technical solution, further, the fixing assembly includes:

[0024] Two slide grooves are provided in the dust box and are connected to the slots. Two plug rods are slidably connected in the two slide grooves, and one end of the two plug rods extends to the inner wall of the slots and is plugged into the slots. Two springs are fixedly connected to the two plug rods, and one end of the two springs is fixed to the inner walls of the two slide grooves.

[0025] In this technical solution, it is ensured that the user can fix the dust box in the slot to prevent the dust box from being affected by vibration and moving to the outside.

[0026] In the above technical solution, further, the insertion rod is in an "L" shape.

[0027] In this technical solution, it is ensured that the user can drive one end of the insertion rod to move through the other end of the insertion rod.

[0028] In the above technical solution, further, the inner cavity of the exhaust fan is connected to the inner cavity of the dust collecting tank.

[0029] In the technical solution, it is ensured that the exhaust port of the exhaust fan can exhaust air into the inner cavity of the dust collecting tank.

[0030] The beneficial effects of the utility model are:

[0031] 1. The explosion-proof screw air compressor ensures that the fan blades can rotate in the rotating groove by means of the rotating groove and the fan blades. The power assembly is provided to ensure that the user can drive the two fan blades to rotate through the power assembly, so that the two fan blades can lift the dust inside the explosion-proof screw air compressor body. The dust suction port, dust collecting groove, exhaust fan and ventilation pipe are provided to ensure that when the user starts the exhaust fan, the exhaust port of the exhaust fan will exhaust the dust collecting groove, so that the dust collecting groove generates negative pressure, so that the exhaust fan can absorb the dust raised in the explosion-proof screw air compressor body through the dust collecting groove, the ventilation pipe and the two dust suction ports. The dust raised in the explosion-proof screw air compressor body is taken out, and the dust raised in the explosion-proof screw air compressor body enters the dust collecting tank. The dust filter cloth is set to ensure that when the dust is sucked into the dust collecting tank, the dust will be filtered in the dust collecting tank by the dust filter cloth. At the same time, clean air will be discharged to the outside, which solves the problem that a large amount of external dust will enter the explosion-proof screw air compressor during long-term use, and adhere to the internal explosion-proof gas tank and other components. This requires users to manually clean the dust inside the explosion-proof screw air compressor, but because the dust is located inside the explosion-proof screw air compressor, it is difficult to clean.

[0032] 2. The explosion-proof screw air compressor ensures that the dust box can be inserted into the slot by providing a slot and a dust box. The fixed component provided ensures that the user can fix the dust box in the slot through the fixed component to prevent the slot from being affected by vibration and moving to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the internal structure of the explosion-proof screw air compressor body of the utility model;

[0035] Figure 3 It is a schematic diagram of the internal structure of the fixed block of the utility model;

[0036] Figure 4 It is a schematic diagram of the internal structure of the dust collecting box of the utility model.

[0037] The symbols in the figure are:

[0038] 1. Explosion-proof screw air compressor body; 2. Rotating groove; 3. Fan blade; 4. Dust suction port; 5. Fixed block; 6. Slot; 7. Dust box; 8. Dust collecting groove; 9. Dust filter cloth; 10. Installation groove; 11. Exhaust fan; 12. Ventilation duct; 13. First sprocket; 14. Support frame; 15. Rotating rod; 16. Second sprocket; 17. Chain; 18. Worm wheel; 19. Motor; 20. Worm; 21. Slide groove; 22. Insert rod; 23. Spring. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0040] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0042] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0043] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0044] Embodiment 1:

[0045] See also Figure 1 - Figure 4 As shown, this embodiment provides an explosion-proof screw air compressor, comprising:

[0046] An explosion-proof screw air compressor body 1 and two rotating grooves 2, wherein the two rotating grooves 2 are symmetrically arranged on the inner wall of the explosion-proof screw air compressor body 1, and a fan blade 3 is rotatably connected in the rotating groove 2;

[0047] A power assembly is located on the explosion-proof screw air compressor body 1 and is used to drive the two fan blades 3 to rotate;

[0048] Two dust suction ports 4 are provided on the inner wall of the explosion-proof screw air compressor body 1 and are connected to the outside;

[0049] A fixed block 5 is fixedly connected to the explosion-proof screw air compressor body 1. A slot 6 connected to the outside is provided in the fixed block 5. A dust collecting box 7 is inserted in the slot 6. A dust collecting groove 8 connected to the slot 6 is provided in the dust collecting box 7. A dust filter cloth 9 is fixedly connected in the dust collecting groove 8.

[0050] A fixing assembly, which is located in the dust box 7 and is used to fix the dust box 7;

[0051] The installation groove 10 is provided on the inner wall of the slot 6 and communicates with the outside. An exhaust fan 11 is fixedly connected in the installation groove 10, and the exhaust port of the exhaust fan 11 is in contact with the bottom surface of the dust box 7;

[0052] The ventilation pipe 12 is fixedly connected to the top surface of the fixed block 5, and the inner cavity of the ventilation pipe 12 is connected to the dust collecting groove 8, and the two ends of the ventilation pipe 12 are respectively fixed to the inner walls of the two dust suction ports 4, and the inner cavity of the ventilation pipe 12 is connected to the two dust suction ports 4.

[0053] Embodiment 2:

[0054] This embodiment provides an explosion-proof screw air compressor, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the power assembly includes:

[0055] Two first sprockets 13, the two first sprockets 13 are rotatably connected to the two sides of the explosion-proof screw air compressor body 1, and one end of the two first sprockets 13 penetrates the explosion-proof screw air compressor body 1 and extends into the two rotating grooves 2 and is fixed to the two fan blades 3;

[0056] Two support frames 14, the two support frames 14 are fixedly connected to the top surface of the explosion-proof screw air compressor body 1, a rotating rod 15 is rotatably connected between the two support frames 14, two second sprocket wheels 16 are fixedly connected to both ends of the rotating rod 15, two chains 17 are respectively meshed between the two second sprocket wheels 16 and the two first sprocket wheels 13, and a worm wheel 18 is fixedly connected to the peripheral side of the rotating rod 15;

[0057] The motor 19 is fixedly connected to the top surface of the explosion-proof screw air compressor body 1 , and a worm 20 meshing with the worm wheel 18 is fixedly connected to the output shaft of the motor 19 .

[0058] Among them, when a large amount of dust adheres to the components in the inner cavity of the explosion-proof screw air compressor body 1, the user starts the motor 19, allows the motor 19 to drive the worm 20 to rotate, and allows the worm 20 to drive the worm wheel 18 to rotate. When the worm wheel 18 rotates, the worm wheel 18 will drive the rotating rod 15 to rotate between the two support frames 14. When the rotating rod 15 rotates, the rotating rod 15 will drive the two second sprocket wheels 16 to rotate, and the two second sprocket wheels 16 will respectively drive the two first sprocket wheels 13 to rotate through the two chains 17, so that the two first sprocket wheels 13 respectively drive the two fan blades 3 to rotate in the two rotating grooves 2, ensuring that when the two fan blades 3 rotate, the two fan blades 3 can lift the dust on the components in the inner cavity of the explosion-proof screw air compressor body 1.

[0059] Embodiment 3:

[0060] This embodiment provides an explosion-proof screw air compressor, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: one end of the first sprocket 13 is rotatably connected to the rotating groove 2.

[0061] Here, it is ensured that one end of the first sprocket 13 can rotate normally in the rotation groove 2 .

[0062] Embodiment 4:

[0063] This embodiment provides an explosion-proof screw air compressor, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the fixing assembly includes:

[0064] Two slide grooves 21 are provided in the dust box 7 and are connected to the slot 6. Two plug rods 22 are slidably connected in the two slide grooves 21, and one end of the two plug rods 22 extends to the inner wall of the slot 6 and is plugged into the slot 6. Two springs 23 are fixedly connected to the two plug rods 22, and one end of the two springs 23 is fixed to the inner wall of the two slide grooves 21.

[0065] When the user starts the motor 19 and the exhaust fan 11 at the same time, the exhaust fan 11 is allowed to extract the air in the dust collecting tank 8, so that the dust collecting tank 8 generates negative pressure. When the dust collecting tank 8 generates negative pressure, the dust collecting tank 8 will suck the dust raised in the inner cavity of the explosion-proof screw air compressor body 1 into the two dust suction ports 4 through the ventilation pipe 12 and the two dust suction ports 4, and enter the ventilation pipe 12 through the two dust suction ports 4. When the dust enters the ventilation pipe 12, the dust will enter the dust collecting tank 8 along the ventilation pipe 12. When the dust enters the dust collecting tank 8, the dust in the air will be filtered by the dust filter cloth 9 in the dust collecting tank 8 and collected. At the same time, the filtered air will be discharged to the outside. When the dust collecting tank 8 When the dust box 7 is full of dust, the user pulls the two rods 22 by hand, allowing one end of the two rods 22 to enter the two slide grooves 21 from the inner wall of the slot 6 respectively, and compress the two springs 23 respectively. At this time, the fixation of the dust box 7 is released, and then the user pulls the dust box 7 out of the slot 6 by hand, and cleans the dust in the dust collecting groove 8. After cleaning, the user reinserts the dust box 7 into the slot 6 by hand, and releases the hand pulling the two rods 22, so that one end of the two rods 22 is respectively affected by the rebound force of the two springs 23 and inserted into the inner wall of the slot 6, ensuring that the user can fix the dust box 7 in the slot 6 to prevent the dust box 7 from being affected by vibration and moving to the outside.

[0066] Embodiment 5:

[0067] This embodiment provides an explosion-proof screw air compressor, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the insertion rod 22 is in an "L" shape.

[0068] Here, it is ensured that the user can drive one end of the insertion rod 22 to move through the other end of the insertion rod 22.

[0069] Embodiment 6:

[0070] This embodiment provides an explosion-proof screw air compressor, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the inner cavity of the exhaust fan 11 is connected to the inner cavity of the dust collecting tank 8.

[0071] Here, it is ensured that the air outlet of the exhaust fan 11 can exhaust air into the inner cavity of the dust collecting tank 8.

[0072] When a large amount of dust adheres to the components in the inner cavity of the explosion-proof screw air compressor body 1, the user starts the motor 19, and the motor 19 drives the worm 20 to rotate, so that the worm 20 drives the worm wheel 18 to rotate. When the worm wheel 18 rotates, the worm wheel 18 drives the rotating rod 15 to rotate between the two support frames 14. When the rotating rod 15 rotates, the rotating rod 15 drives the two second sprocket wheels 16 to rotate, and the two second sprocket wheels 16 respectively drive the two first sprocket wheels 13 to rotate through the two chains 17, so that the two first sprocket wheels 1 3 respectively drive the two fan blades 3 to rotate in the two rotating grooves 2, ensuring that when the two fan blades 3 rotate, the two fan blades 3 can lift the dust on the components in the inner cavity of the explosion-proof screw air compressor body 1, wherein, when the user starts the motor 19 and the exhaust fan 11 at the same time, the exhaust fan 11 is allowed to extract the air in the dust collecting groove 8, so that the dust collecting groove 8 generates a negative pressure. When the dust collecting groove 8 generates a negative pressure, the dust collecting groove 8 will suck the dust raised in the inner cavity of the explosion-proof screw air compressor body 1 into the two suction ports 4 through the ventilation pipe 12 and the two suction ports 4. The dust in the air is filtered by the dust filter cloth 9 and collected in the dust collecting groove 8. At the same time, the filtered air is discharged to the outside. When the dust collecting groove 8 is full of dust, the user pulls the two insertion rods 22 by hand, so that one end of the two insertion rods 22 enters the two slide grooves 21 from the inner wall of the slot 6, and respectively enters the two slide grooves 21. Compress the two springs 23. At this time, the fixation of the dust box 7 is released, and then the user manually pulls the dust box 7 out of the slot 6 and cleans the dust in the dust collecting slot 8. After cleaning, the user manually reinserts the dust box 7 into the slot 6 and releases the hands pulling the two insertion rods 22, so that one end of the two insertion rods 22 is respectively affected by the rebound force of the two springs 23 and inserted into the inner wall of the slot 6, ensuring that the user can fix the dust box 7 in the slot 6 to prevent the dust box 7 from being affected by vibration and moving to the outside.

[0073] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An explosion-proof screw air compressor, characterized in that: include: An explosion-proof screw air compressor body (1) and two rotating grooves (2), wherein the two rotating grooves (2) are symmetrically arranged on the inner wall of the explosion-proof screw air compressor body (1), and a fan blade (3) is rotatably connected in the rotating groove (2); A power assembly, the power assembly being located on the explosion-proof screw air compressor body (1) and being used to drive the two fan blades (3) to rotate; Two dust suction ports (4), the two dust suction ports (4) being arranged on the inner wall of the explosion-proof screw air compressor body (1) and being connected to the outside; A fixed block (5), the fixed block (5) being fixedly connected to the explosion-proof screw air compressor body (1), the fixed block (5) being provided with a slot (6) connected to the outside, the slot (6) being plugged with a dust collecting box (7), the dust collecting box (7) being provided with a dust collecting groove (8) connected to the slot (6), the dust collecting groove (8) being fixedly connected with a dust filter cloth (9); A fixing assembly, the fixing assembly being located in the dust box (7) and being used to fix the dust box (7); An installation groove (10), the installation groove (10) being provided on the inner wall of the slot (6) and being in communication with the outside, an exhaust fan (11) being fixedly connected in the installation groove (10), and an exhaust port of the exhaust fan (11) being in contact with the bottom surface of the dust collecting box (7); A ventilation pipe (12), wherein the ventilation pipe (12) is fixedly connected to the top surface of the fixed block (5), and the inner cavity of the ventilation pipe (12) is connected to the dust collecting groove (8), and the two ends of the ventilation pipe (12) are respectively fixed to the inner walls of the two dust suction ports (4), and the inner cavity of the ventilation pipe (12) is connected to the two dust suction ports (4).

2. The explosion-proof screw air compressor according to claim 1, characterized in that: The power assembly comprises: Two first sprockets (13), the two first sprockets (13) are respectively rotatably connected to the two sides of the explosion-proof screw air compressor body (1), and one end of the two first sprockets (13) penetrates the explosion-proof screw air compressor body (1) and respectively extends into the two rotating grooves (2) to be fixed to the two fan blades (3); Two support frames (14), the two support frames (14) are fixedly connected to the top surface of the explosion-proof screw air compressor body (1), a rotating rod (15) is rotatably connected between the two support frames (14), two second sprocket wheels (16) are respectively fixedly connected at both ends of the rotating rod (15), two chains (17) are respectively meshed between the two second sprocket wheels (16) and the two first sprocket wheels (13), and a worm wheel (18) is fixedly connected to the circumferential side of the rotating rod (15); A motor (19) is fixedly connected to the top surface of the explosion-proof screw air compressor body (1), and a worm (20) meshing with the worm wheel (18) is fixedly connected to the output shaft of the motor (19).

3. The explosion-proof screw air compressor according to claim 2, characterized in that: One end of the first sprocket (13) is rotatably connected to the rotation groove (2).

4. The explosion-proof screw air compressor according to claim 1, characterized in that: The fixing assembly comprises: Two slide grooves (21), the two slide grooves (21) are opened in the dust box (7) and are connected to the slot (6), two insertion rods (22) are slidably connected in the two slide grooves (21), and one end of the two insertion rods (22) respectively extends to the inner wall of the slot (6) and is plugged into the slot (6), two springs (23) are fixedly connected to the two insertion rods (22), and one end of the two springs (23) is respectively fixed to the inner wall of the two slide grooves (21).

5. The explosion-proof screw air compressor according to claim 4, characterized in that: The insertion rod (22) is in an "L" shape.

6. The explosion-proof screw air compressor according to claim 1, characterized in that: The inner cavity of the exhaust fan (11) is communicated with the inner cavity of the dust collecting tank (8).

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