Nitrogen making machine with noise reduction function

Abstract

The nitrogen making machine with the noise reduction function comprises a bottom plate, a nitrogen making machine body is installed at the upper end of the bottom plate, a first sound insulation cover is fixedly connected to the upper end of the bottom plate, a plurality of heat dissipation holes are formed in the upper end of the first sound insulation cover, two sliding grooves are formed in the upper end of the bottom plate, and the two sliding grooves are communicated with the first sound insulation cover. The inner walls of the two sliding grooves are each slidably connected with two sliding blocks, the upper end of each sliding block is fixedly connected with a connecting block, the opposite ends of every two matched connecting blocks are jointly and fixedly connected with a second sound insulation cover, and a two-way threaded rod is rotatably connected between the inner walls of the two sides of one sliding groove; the two threaded ends of the two-way threaded rod are in threaded connection with the two sliding blocks respectively. By arranging the gear, the rack, the spring and other structures, the movable frame drives the fan blades to move, so that airflow generated by the fan blades can cover more areas of the nitrogen making machine body, local heat accumulation is avoided, and the heat dissipation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen making machine technical field especially relates to a nitrogen making machine with noise reduction function. BACKGROUND

[0002] Nitrogen making machine is with air as raw material, with high -quality carbon molecular sieve as adsorbent, uses the principle of pressure swing adsorption, utilizes the molecular sieve full of micropore, carries out selective adsorption to air, to reach the purpose of oxygen nitrogen separation, nitrogen making machine will produce noise in the use process, and the long -term work of staff in noise will affect health, therefore usually adopts the sound insulation cover to carry out noise reduction, and the sound insulation cover is provided with the movable frame, the movable frame is provided with the second motor, the second motor is connected with the fan blade, and the fan blade is arranged in the sound insulation cover, and the fan blade is arranged in the sound insulation cover.

[0003] But, the sound insulation cover generally adopts the heat dissipation hole to carry out heat dissipation, and the heat dissipation efficiency of heat dissipation hole is low, and nitrogen making machine will produce a large amount of heat in the operation process, and it is difficult to quickly and effectively dissipate heat by relying on the heat dissipation hole, which will cause the internal temperature of nitrogen making machine to continuously rise, affect the normal operation and service life of equipment, therefore, how to solve the problem is the problem that we need to consider. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of nitrogen making machines with noise reduction function, it is set gear, rack and spring structure, so that moving frame moves with fan blade, further so that the airflow generated by fan blade can cover more areas of nitrogen making machine body, avoid local heat accumulation, improve heat dissipation efficiency.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of nitrogen making machine with noise reduction function, including bottom plate, the upper end of the bottom plate is installed with nitrogen making machine body, the upper end of the bottom plate is fixedly connected with first sound insulation cover, the upper end of the first sound insulation cover is equipped with a plurality of heat dissipation holes, the upper end of the bottom plate is equipped with two sliding grooves, the inner wall of two The sliding grooves are slidably connected with two sliding blocks, the upper end of each sliding block is fixedly connected with a connecting block, the opposite ends of every two mutually cooperating connecting blocks are fixedly connected with second sound insulation cover, the inner wall of one of the sliding grooves is rotatably connected with two-way threaded rod, the two threaded ends of the two-way threaded rod are respectively connected with two sliding blocks, the upper end of two second sound insulation covers is equipped with through opening, and the through opening is fixedly connected with ventilation net, the inside of the first sound insulation cover is provided with moving frame, the inner wall of the moving frame is installed with second motor, the output shaft end of the second motor penetrates moving frame, and is fixedly connected with a plurality of fan blades, the inside of the first sound insulation cover is provided with moving mechanism for moving moving frame.

[0007] Preferably, the inner wall of the other sliding groove is fixedly connected with sliding rod, and the sliding rod is slidably connected with the other two sliding blocks.

[0008] Preferably, a first motor is installed on the outer wall of the base plate, and the end of the output shaft of the first motor extends into one of the grooves and is fixedly connected to one end of a bidirectional threaded rod.

[0009] Preferably, a sealing strip is fixedly connected to the side wall of one of the second soundproof covers, and a sealing groove that mates with the sealing strip is opened on the side wall of the other second soundproof cover.

[0010] Preferably, the moving mechanism includes a third motor mounted on the upper end of the first soundproof cover, the output shaft of the third motor extending into the interior of the first soundproof cover and fixedly connected to a gear, a guide rod fixedly connected between the inner walls of the two sides of the first soundproof cover, and a rack slidably connected to the guide rod, the rack meshing with the gear.

[0011] Preferably, a fixing rod is fixedly connected between the inner walls of the two sides of the first soundproof cover, and a movable plate is slidably connected to the fixing rod. The upper end of the movable plate is fixedly connected to the lower end of the rack, and the lower end of the movable plate is fixedly connected to the upper end of the movable frame. Both sides of the movable plate are elastically connected to the inner wall of the first soundproof cover by springs.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. A second motor and fan blades are installed to generate airflow through the rotation of the fan blades, which dissipates heat from the nitrogen generator body. Furthermore, a gear, rack, and spring structure is installed so that the gear and rack mesh to drive the rack to move, thereby moving the moving frame and fan blades within the first soundproof cover. This allows the airflow generated by the fan blades to cover more areas of the nitrogen generator body, avoiding local heat accumulation and improving heat dissipation efficiency.

[0014] 2. The structure includes sliders, bidirectional threaded rods, and guide rods. By rotating the bidirectional threaded rod, multiple sliders can move within the groove, allowing the two second soundproof covers to merge and enhance the sound insulation effect. Furthermore, rotating the bidirectional threaded rod in the opposite direction can separate the two second soundproof covers, facilitating maintenance or repair of the nitrogen generator body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a nitrogen generator with noise reduction function proposed in this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the front cross-section;

[0017] Figure 3 for Figure 1 Rear view diagram;

[0018] Figure 4 forFigure 1 A top-down view;

[0019] Figure 5 for Figure 1 A schematic diagram of the second soundproof cover in its separated state;

[0020] Figure 6 for Figure 5 Enlarged view of point A;

[0021] Figure 7 for Figure 5 The diagram on the left;

[0022] Figure 8 for Figure 1 A schematic diagram of the right-side cross-section;

[0023] Figure 9 for Figure 8 Enlarged view of point B.

[0024] In the diagram: 1. Base plate, 2. Nitrogen generator body, 3. First soundproof cover, 4. Heat dissipation hole, 5. Slide groove, 6. Slider, 7. Connecting block, 8. Second soundproof cover, 9. Bidirectional threaded rod, 10. Sliding rod, 11. First motor, 12. Ventilation mesh, 13. Sealing strip, 14. Sealing groove, 15. Moving frame, 16. Second motor, 17. Fan blade, 18. Third motor, 19. Gear, 20. Guide rod, 21. Rack, 22. Fixing rod, 23. Moving plate, 24. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-9A nitrogen generator with noise reduction function includes a base plate 1, a nitrogen generator body 2 mounted on the upper end of the base plate 1, a first soundproof cover 3 fixedly connected to the upper end of the base plate 1, a plurality of heat dissipation holes 4 opened on the upper end of the first soundproof cover 3, two sliding grooves 5 opened on the upper end of the base plate 1, two sliders 6 slidably connected to the inner walls of the two sliding grooves 5, a connecting block 7 fixedly connected to the upper end of each slider 6, and a second soundproof cover 8 fixedly connected to the opposite ends of every two cooperating connecting blocks 7. Sound insulation cotton is provided inside both the first soundproof cover 3 and the second soundproof cover 8, which can effectively block the noise generated by the nitrogen generator body 2 during operation from spreading outwards, providing a quiet working environment. A double soundproof cover 4 is rotatably connected between the inner walls of one side of the sliding groove 5. The two threaded ends of the threaded rod 9 are respectively threaded to two of the sliders 6. A sliding rod 10 is fixedly connected between the inner walls of the two sides of the other slide groove 5. The sliding rod 10 is slidably connected to the other two sliders 6. A first motor 11 is installed on the outer wall of the base plate 1. The first motor 11 is a servo motor. The end of the output shaft of the first motor 11 extends into the interior of one of the slide grooves 5 and is fixedly connected to one end of the threaded rod 9. The first motor 11 drives the threaded rod 9 so that the second soundproof cover 8 can slide open and close along the slide groove 5. When the nitrogen generator body 2 needs to be maintained or repaired, the second soundproof cover 8 can be opened conveniently. During normal operation, the second soundproof cover 8 can be closed to enhance the sound insulation effect.

[0027] Each of the two second soundproof enclosures 8 has an opening at its upper end, and a ventilation mesh 12 is fixedly connected to each opening. Sound-absorbing materials, such as sound-absorbing cotton and sound-absorbing foam, can be filled inside the heat dissipation holes 4 and the ventilation mesh 12 to absorb noise without significantly affecting air circulation. A sealing strip 13 is fixedly connected to the side wall of one of the second soundproof enclosures 8, and a sealing groove 14 that cooperates with the sealing strip 13 is opened on the side wall of the other second soundproof enclosure 8. The sealing strip 13 and the sealing groove 14 cooperate to form a good seal when the second soundproof enclosure 8 is closed. To further improve the sound insulation effect and prevent noise leakage from the connection, a movable frame 15 is set inside the first soundproof cover 3. A second motor 16 is installed on the inner wall of the movable frame 15. The output shaft of the second motor 16 passes through the movable frame 15 and is fixedly connected to multiple fan blades 17. A moving mechanism for moving the movable frame 15 is set inside the first soundproof cover 3. The moving mechanism can drive the movable frame 15 and the fan blades 17 to move inside the first soundproof cover 3. This allows the airflow generated by the fan blades 17 to cover more areas of the nitrogen generator body 2 and improve heat dissipation efficiency.

[0028] The moving mechanism includes a third motor 18 mounted on the upper end of the first soundproof cover 3. The third motor 18 is a servo motor, and the end of the output shaft of the third motor 18 extends into the interior of the first soundproof cover 3 and is fixedly connected to a gear 19. The gear 19 is an incomplete gear. A guide rod 20 is fixedly connected between the inner walls of the two sides of the first soundproof cover 3. A rack 21 is slidably connected to the guide rod 20 and meshes with the gear 19. A fixing rod 22 is fixedly connected between the inner walls of the two sides of the first soundproof cover 3, and a moving plate is slidably connected to the fixing rod 22. 23. The upper end of the movable plate 23 is fixedly connected to the lower end of the rack 21, and the lower end of the movable plate 23 is fixedly connected to the upper end of the movable frame 15. Both sides of the movable plate 23 are elastically connected to the inner wall of the first soundproof cover 3 through springs 24. When the incomplete gear 19 rotates to a position where it does not mesh with the rack 21, the spring 24 will use its own elastic force to make the movable plate 23 return to the initial position, thereby resetting and ensuring that the movable frame 15 and the fan blades 17 on it can move continuously and stably within a certain range to achieve good ventilation and heat dissipation.

[0029] In this invention, when in use, the first motor 11 is started, causing the bidirectional threaded rod 9 to rotate, which in turn causes the two sliders 6 to move. With the cooperation of the sliding rod 10, the other two sliders 6 also move. In this way, the two second soundproof covers 8 can be moved through multiple connecting blocks 7. When the two second soundproof covers 8 move towards each other, they can surround the nitrogen generator body 2, enhancing the sound insulation effect. In addition, the sealing strip 13 will be embedded in the sealing groove 14, further improving the sound insulation effect. When the two second soundproof covers 8 move away from each other, it is convenient to perform maintenance and other operations on the nitrogen generator body 2.

[0030] When cooling is required, the second motor 16 is activated, causing multiple fan blades 17 to rotate, agitating the air inside the first soundproof cover 3, promoting airflow, and achieving internal heat dissipation. At the same time, the third motor 18 can be activated, causing the gear 19 to rotate. When the gear 19 meshes with the rack 21, it will drive the rack 21 to slide along the guide rod 20, thereby causing the moving plate 23 to move with the moving frame 15. When the gear 19 rotates to a position where it does not mesh with the rack 21, the moving plate 23 returns to its initial position under the elastic action of the spring 24, thus resetting. In this way, the moving frame 15 can move repeatedly within the first soundproof cover 3, allowing the airflow generated by the fan blades 17 to cover more areas of the nitrogen generator body 2, accelerating airflow and improving heat dissipation efficiency.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A nitrogen generator with noise reduction function, comprising a base plate (1), characterized in that, The nitrogen generator body (2) is installed on the upper end of the base plate (1). A first soundproof cover (3) is fixedly connected to the upper end of the base plate (1). The upper end of the first soundproof cover (3) is provided with multiple heat dissipation holes (4). Two sliding grooves (5) are provided on the upper end of the base plate (1). Two sliders (6) are slidably connected to the inner walls of the two sliding grooves (5). A connecting block (7) is fixedly connected to the upper end of each slider (6). The opposite ends of every two cooperating connecting blocks (7) are jointly fixedly connected to a second soundproof cover (8). One of the sliding blocks (8) is connected to a second soundproof cover (8). A bidirectional threaded rod (9) is rotatably connected between the inner walls of the two sides of the groove (5). The two threaded ends of the bidirectional threaded rod (9) are respectively threaded to two sliders (6). The upper ends of the two second soundproof covers (8) are provided with openings. Ventilation mesh (12) is fixedly connected to the two openings. A movable frame (15) is provided inside the first soundproof cover (3). A second motor (16) is installed on the inner wall of the movable frame (15). The output shaft end of the second motor (16) passes through the movable frame (15) and is fixedly connected to multiple fan blades (17). The first soundproof cover (3) is provided with a moving mechanism for moving the moving frame (15).

2. A nitrogen generator with noise reduction function according to claim 1, characterized in that, A sliding rod (10) is fixedly connected between the inner walls of the two sides of another groove (5), and the sliding rod (10) is slidably connected to the other two sliders (6).

3. A nitrogen generator with noise reduction function according to claim 1, characterized in that, The outer wall of the base plate (1) is equipped with a first motor (11), the output shaft of the first motor (11) extends into one of the grooves (5) and is fixedly connected to one end of the bidirectional threaded rod (9).

4. A nitrogen generator with noise reduction function according to claim 1, characterized in that, One of the second soundproof covers (8) has a sealing strip (13) fixedly connected to its side wall, and the other second soundproof cover (8) has a sealing groove (14) that cooperates with the sealing strip (13) on its side wall.

5. A nitrogen generator with noise reduction function according to claim 1, characterized in that, The moving mechanism includes a third motor (18) installed on the upper end of the first soundproof cover (3). The output shaft of the third motor (18) extends into the interior of the first soundproof cover (3) and is fixedly connected to a gear (19). A guide rod (20) is fixedly connected between the inner walls of the two sides of the first soundproof cover (3). A rack (21) is slidably connected to the guide rod (20), and the rack (21) meshes with the gear (19).

6. A nitrogen generator with noise reduction function according to claim 5, characterized in that, A fixed rod (22) is fixedly connected between the inner walls of the two sides of the first soundproof cover (3). A movable plate (23) is slidably connected on the fixed rod (22). The upper end of the movable plate (23) is fixedly connected to the lower end of the rack (21). The lower end of the movable plate (23) is fixedly connected to the upper end of the movable frame (15). Both sides of the movable plate (23) are elastically connected to the inner wall of the first soundproof cover (3) through springs (24).

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