Soft support brush holder low noise blower assembly

Abstract

The present invention provides a soft-support brush holder low-noise blower assembly, comprising a blower body, a shock-absorbing base is provided at the bottom of the blower body, clamping plates are provided on both sides of the top of the shock-absorbing base, and the blower body is installed between the two clamping plates; wherein, a sealed cavity is provided in the shock-absorbing base, damping liquid is placed in the sealed cavity, a vibration transmission block is provided on the top of the shock-absorbing base, the top of the vibration transmission block is in close contact with the blower body, and the top of the vibration transmission block extends into the damping liquid; the present invention can achieve vibration reduction treatment of the blower, and through the provided clamping plate, the stability of the blower operation can be improved, and a first sound-absorbing plate is provided in the clamping plate to achieve noise reduction treatment of the blower operation, and can further improve the absorption of noise, so that the noise reduction performance of the blower is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of blowers, in particular to a low-noise blower assembly with a soft-support brush holder. Background Art

[0002] As an important component of the blower motor, the soft support brush holder can greatly improve the stability of the motor. However, in the actual working process, the blower will inevitably vibrate, resulting in poor stability, and a large amount of noise will be generated along with the vibration. Noise is a major pollution and has a great impact on workers and surrounding residents. Moreover, as the air volume generated by the blower increases, the corresponding blower wind noise "whoosh" will also be greater. For this reason, a soft support brush holder low-noise blower assembly is proposed to reduce the vibration and noise generated during the operation of the blower. Summary of the Invention

[0003] Technical problems solved

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a low-noise blower assembly with a soft-support brush holder, which can effectively solve the problems of unstable operation and high noise of the prior art blowers.

[0005] Technical Solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a soft-support brush holder low-noise blower assembly, comprising a blower body, a shock-absorbing base provided at the bottom of the blower body, clamping plates provided on both sides of the top of the shock-absorbing base, and the blower body installed between the two clamping plates; wherein a sealed cavity is provided in the shock-absorbing base, a damping liquid is placed in the sealed cavity, and the volume of the damping liquid is four-fifths of the volume of the sealed cavity; a vibration transmission block is provided on the top of the shock-absorbing base, the top of the vibration transmission block is in close contact with the blower body, and the top of the vibration transmission block extends into the damping liquid The top of the clamping plate is arranged on the inner side of the first sound-absorbing panel, the top of the clamping plate is arranged in a semicircular shape, and an accommodating slot is opened in the clamping plate. The top of the accommodating slot is fan-shaped and equidistantly provided with a group of guide rods, and the guide rods are interspersed with fan-shaped sound-absorbing panels extending out of the accommodating slots. A traction member is movably connected between two adjacent fan-shaped sound-absorbing panels, and a lifting member for pulling the fan-shaped sound-absorbing panels out of the accommodating slots is provided on the top of the blower body. The lifting member includes a lifting column that rises and falls synchronously with the air output of the blower body, and the lifting column is connected to the traction member.

[0008] Furthermore, the shock-absorbing base includes a bottom box, in which a liquid hopper for storing damping liquid is installed, and a sealing cover is installed on the top of the bottom box. A sealed cavity is formed between the liquid hopper and the sealing cover, and the vibration transmission block is arranged through the middle of the sealing cover.

[0009] Furthermore, an L-shaped detection tube extending out of the bottom box and with the opening facing upward is provided through the bottom of the liquid storage hopper, a limit ring is fixed in the middle of the L-shaped detection tube, a float is placed on the limit ring, a detection rod is provided on the top of the float, a pressure switch is installed at the mouth of the L-shaped detection tube, an alarm is installed on the sealing cover, and the alarm is electrically connected to the pressure switch.

[0010] Furthermore, a floating ring is provided in the middle of the float ball, the floating ring is in contact with a limiting ring, and the limiting ring is kept level with the liquid level of the damping fluid.

[0011] Furthermore, the lifting member also includes an arc-shaped cylinder arranged inside the blower body, an arc-shaped spring is arranged in the arc-shaped cylinder, a first piston block is arranged at the outer end of the arc-shaped spring, an arc-shaped piston rod is arranged on the outer side of the first piston block, a wind shield is arranged at the outer end of the arc-shaped piston rod, a vertical extension cylinder is arranged through the middle part of the arc-shaped cylinder, a second piston block is arranged on the top of the extension cylinder, and the lifting column is vertically fixed on the second piston block.

[0012] Furthermore, the arc-shaped cylinder, the arc-shaped piston rod and the arc-shaped spring are co-centered with the center of the blower body.

[0013] Furthermore, the traction member includes a U-shaped rod arranged between the tops of the two clamping plates, the middle part of the U-shaped rod is fixed to the jacking column, and the two ends of the U-shaped rod are respectively fixed to the fan-shaped sound-absorbing panels at the middle position of the two clamping plates. The outer end of the fan-shaped sound-absorbing panel is provided with an arc-shaped slide, and an arc-shaped traction rod is slidably provided in the arc-shaped slide, and one end of the arc-shaped traction rod extends out of the arc-shaped slide and communicates with the fan-shaped sound-absorbing panel at the middle position through a connecting rod.

[0014] Furthermore, a vibration transmission plate is inserted into the bottom of the accommodating slot, an extension slot is provided on the sealing cover for the vibration transmission plate to pass through, the bottom of the vibration transmission plate passes through the extension slot and extends into the top of the liquid hopper, the bottom end of the vibration transmission plate is set to be V-shaped, and a V-shaped slide groove is provided at the top of the vibration transmission plate, a pair of sliders are provided in the middle of the slide groove, and an inclined pressure rod is fixed between the slider and the bottom end of the adjacent fan-shaped sound-absorbing panel.

[0015] Beneficial effects

[0016] Compared with the known public technologies, the technical solution provided by the present invention has the following beneficial effects:

[0017] The present invention provides a shock-absorbing base, a sealed cavity is provided in the shock-absorbing base, and a damping liquid is placed in the sealed cavity. The damping liquid has good shock-absorbing characteristics, and the vibration generated during the operation of the blower body can be guided into the damping liquid through the vibration transmission block, thereby achieving vibration reduction treatment of the blower. The provided clamping plate can improve the stability of the blower operation, and a first sound-absorbing plate is provided in the clamping plate, which can absorb the noise generated during the operation of the blower, thereby achieving noise reduction treatment of the blower operation. A fan-shaped sound-absorbing panel is provided on the clamping plate, which can further improve the absorption of noise, so that the noise reduction performance of the blower is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a structural separation diagram of the shock-absorbing base of the present invention;

[0021] Figure 3 is a cross-sectional view of the lifting member of the present invention;

[0022] Figure 4 is a front cross-sectional view of the clamping plate of the present invention;

[0023] Figure 5 is a cross-sectional view of the liquid hopper of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle.

[0025] The numbers in the figure represent: 1. Blower body; 2. Shock-absorbing base; 3. Clamping plate; 4. Vibration transmission block; 5. First sound-absorbing panel; 6. Accommodating slot; 7. Guide rod; 8. Fan-shaped sound-absorbing panel; 9. Lifting column; 10. Bottom box; 11. Liquid hopper; 12. Sealing cover; 13. L-shaped detection tube; 14. Limiting ring; 15. Float; 16. Detection rod; 17. Pressure switch; 18. Alarm; 19. Arc cylinder; 20. Arc spring; 21. First piston block; 22. Arc piston rod; 23. Wind deflector; 24. Extension cylinder; 25. Second piston block; 26. U-shaped rod; 27. Arc slide; 28. Arc traction rod; 29. Connecting rod; 30. Vibration transmission plate; 31. Extension slot; 32. V-shaped slide; 33. Slider; 34. Pressure rod; 35. Floating ring. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example: Refer to the attached Figure 1 To the attached Figure 6 As shown in the figure, the soft support brush holder low noise blower assembly includes a blower body 1, a shock-absorbing base 2 is provided at the bottom of the blower body 1, clamping plates 3 are provided on both sides of the top of the shock-absorbing base 2, and the blower body 1 is installed between the two clamping plates 3; wherein, a sealed cavity is provided in the shock-absorbing base 2, and a damping liquid is placed in the sealed cavity. The damping liquid relies on the viscous resistance of the liquid medium to attenuate the kinetic energy of the moving machine. The volume of the damping liquid is four-fifths of the volume of the sealed cavity. A vibration sensor is provided on the top of the shock-absorbing base 2. The top of the vibration transmission block 4 is in close contact with the blower body 1, and the top of the vibration transmission block 4 extends into the damping liquid. By setting a shock-absorbing base 2, a sealed cavity is provided in the shock-absorbing base 2, and damping liquid is placed in the sealed cavity. The damping liquid has good shock-absorbing characteristics. The vibration generated during the operation of the blower body 1 can be guided into the damping liquid through the vibration transmission block 4, thereby realizing the vibration reduction treatment of the blower body 1. By setting the clamping plate 3, the working stability of the blower body 1 can be improved.

[0029] In order to realize the noise reduction process of the blower body 1 during operation, specifically, refer to the attached Figure 1 To the attached Figure 6As shown in the figure, a first sound-absorbing panel 5 is provided on the inner side of the clamping plate 3, and the top of the clamping plate 3 is set to a semicircular shape. A receiving slot 6 is provided in the clamping plate 3, and a group of guide rods 7 are provided at equal intervals on the top of the receiving slot 6 in a fan shape. The guide rods 7 are interspersed with fan-shaped sound-absorbing panels 8 extending from the receiving slot 6. A traction member is movably connected between two adjacent fan-shaped sound-absorbing panels 8. A lifting member for pulling the fan-shaped sound-absorbing panel 8 out of the receiving slot 6 is provided on the top of the blower body 1. The lifting member includes a A lifting column 9 is synchronously raised and lowered according to the size of the air output, and the lifting column 9 is connected to the traction part. A first sound-absorbing panel 5 is provided in the clamping plate 3, which can absorb the noise generated during the operation of the blower body 1, thereby achieving noise reduction treatment for the operation of the blower body 1, and a fan-shaped sound-absorbing panel 8 is provided on the clamping plate 3. The fan-shaped sound-absorbing panel 8 can be adjusted according to the air volume generated by the blower body 1, which can further improve the absorption of noise, so that the noise reduction performance of the blower body 1 is stably improved.

[0030] Specifically, as attached Figure 2 As shown in the figure, the shock-absorbing base 2 includes a bottom box 10, in which a liquid hopper 11 for storing damping liquid is installed. A sealing cover 12 is installed on the top of the bottom box 10. A sealed cavity is formed between the liquid hopper 11 and the sealing cover 12. The vibration transmission block 4 is arranged through the middle of the sealing cover 12, which is convenient for the assembly and production of the shock-absorbing base 2 and the replacement of the damping liquid.

[0031] For details, please refer to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 5 and attached Figure 6 As shown in the figure, the bottom of the liquid hopper 11 is provided with an L-shaped detection tube 13 extending from the bottom box 10 and opening upward. A limit ring 14 is fixed in the middle of the L-shaped detection tube 13, and a float 15 is placed on the limit ring 14. A floating ring 35 is provided in the middle of the float 15, and the floating ring 35 is in contact with the limit ring 14. The limit ring 14 and the liquid level of the damping liquid are kept level. A detection rod 16 is provided on the top of the float 15, and a pressure switch 17 is installed at the mouth of the L-shaped detection tube 13. Alarm 18 is electrically connected to pressure switch 17. Through the setting of alarm 18, the vibration generated during the operation of blower body 1 can be detected. When the vibration generated by blower body 1 is abnormally large, the vibration causes the damping fluid in L-shaped detection tube 13 to fluctuate. The damping fluid level will drive the float 15 to rise, causing the top of detection rod 16 to squeeze pressure switch 17, thereby triggering alarm 18 and sending out an alarm signal to remind staff that the blower has an abnormality and needs maintenance.

[0032] For details, please refer to the attached Figure 1 To the attached Figure 3As shown in, the lifting part also includes an arc-shaped cylinder 19 arranged inside the blower body 1, an arc-shaped spring 20 is arranged in the arc-shaped cylinder 19, a first piston block 21 is arranged at the outer end of the arc-shaped spring 20, an arc-shaped piston rod 22 is arranged on the outer side of the first piston block 21, and a windshield 23 is arranged at the outer end of the arc-shaped piston rod 22. A vertical extension cylinder 24 is provided through the middle part of the arc-shaped cylinder 19, and a second piston block 25 is provided on the top of the extension cylinder 24. The lifting column 9 is vertically fixed on the second piston block 25, and the arc-shaped cylinder 19, the arc-shaped piston rod 22 and the arc-shaped spring 20 are co-centered with the center of the blower body 1. The traction part includes a U-shaped rod 26 arranged between the tops of the two clamping plates 3, the middle part of the U-shaped rod 26 is fixed to the lifting column 9, and the two ends of the U-shaped rod 26 are respectively fixed to the fan-shaped sound-absorbing panels 8 in the middle position of the two clamping plates 3. The outer ends of the fan-shaped sound-absorbing panels 8 An arc-shaped slide 27 is provided at the end, and an arc-shaped traction rod 28 is slidingly provided in the arc-shaped slide 27. One end of the arc-shaped traction rod 28 extends out of the arc-shaped slide 27 and is connected to the fan-shaped sound-absorbing panel 8 in the middle position by a connecting rod 29. When in use, as the air volume generated by the blower increases and the wind speed increases, the pressure applied to the wind shield 23 increases, thereby pushing the first piston block 21 to move inward along the arc-shaped cylinder 19, and the second piston block 25 drives the jacking column 9 to move upward, so that the U-shaped rod 26 moves upward, and then drives the fan-shaped sound-absorbing panel 8 in the middle to move upward. During the upward movement of the fan-shaped sound-absorbing panel 8, the arc-shaped traction rod 28 is driven to move upward synchronously, and then drives the arc-shaped sound-absorbing panels on both sides to slide outward along the corresponding guide rods 7, thereby increasing the range of noise absorption and improving the noise reduction performance of the device, so that the device has the function of automatically adjusting the noise reduction according to the size of the air volume.

[0033] Refer to the attached Figure 1 To the attached Figure 4As shown in the figure, a vibration transmission plate 30 is inserted into the bottom of the accommodating slot 6, and an extension slot 31 is provided on the sealing cover 12 for the vibration transmission plate 30 to pass through. The bottom of the vibration transmission plate 30 passes through the extension slot 31 and extends into the top of the liquid hopper 11. The bottom end of the vibration transmission plate 30 is set to be V-shaped, and a V-shaped slide groove 32 is provided at the top of the vibration transmission plate 30. A pair of sliders 33 are provided in the middle of the slide groove 32. An inclined pressure rod 34 is fixed between the slider 33 and the bottom end of the adjacent fan-shaped sound-absorbing panel 8. During the movement of the fan-shaped sound-absorbing panel 8, the bottom of the fan-shaped sound-absorbing panel 8 drives the pressure rod 34 to move synchronously, thereby squeezing the vibration downward. The transmission plate 30 allows the bottom end of the vibration transmission plate 30 to extend into the damping liquid. Through the vibration transmission of the clamping plate 3 and the vibration transmission plate 30, the vibration generated by the operation of the blower body 1 is further transmitted, thereby improving the vibration reduction performance of the blower body 1. It should be noted that at this time, the rise in the damping liquid level caused by the insertion of the vibration transmission plate 30 into the damping liquid will not cause the float 15 and the detection rod 16 to rise and trigger the alarm 18. Only when the blower body 1 vibrates violently and the damping liquid fluctuates greatly, will the detection rod 16 squeeze the pressure switch 17, causing the alarm 18 to trigger and send an alarm signal.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Soft support brush holder low noise blower assembly, including blower body, characterized in that, A shock-absorbing base is provided at the bottom of the blower body, and clamping plates are provided on both sides of the top of the shock-absorbing base, and the blower body is installed between the two clamping plates; A sealed cavity is provided in the shock-absorbing base, and a damping fluid is placed in the sealed cavity. The volume of the damping fluid is four-fifths of the volume of the sealed cavity. A vibration transmission block is provided on the top of the shock-absorbing base. The top of the vibration transmission block is in close contact with the blower body and extends into the damping fluid. A first sound-absorbing panel is provided on the inner side of the clamping plate, the top of the clamping plate is configured in a semicircular shape, an accommodating slot is provided in the clamping plate, a group of guide rods are equidistantly provided on the top of the accommodating slot in a fan shape, the guide rods are interspersed with fan-shaped sound-absorbing panels extending out of the accommodating slot, a traction member is movably connected between two adjacent fan-shaped sound-absorbing panels, a lifting member is provided on the top of the blower body for pulling the fan-shaped sound-absorbing panels out of the accommodating slot, the lifting member includes a lifting column that rises and falls synchronously with the air output of the blower body, and the lifting column is connected to the traction member; The shock-absorbing base includes a bottom box, in which a liquid hopper for storing damping liquid is installed. A sealing cover is installed on the top of the bottom box, and a sealed cavity is formed between the liquid hopper and the sealing cover. The vibration transmission block is set through the middle of the sealing cover.

2. The soft support brush holder low noise blower assembly according to claim 1 is characterized in that: An L-shaped detection tube extending out of the bottom box and with the opening facing upward is provided through the bottom of the liquid storage hopper. A limit ring is fixed in the middle of the L-shaped detection tube, a float is placed on the limit ring, a detection rod is provided on the top of the float, a pressure switch is installed at the mouth of the L-shaped detection tube, and an alarm is installed on the sealing cover, and the alarm is electrically connected to the pressure switch.

3. The soft support brush holder low noise blower assembly according to claim 2 is characterized in that: A floating ring is provided in the middle of the float ball, the floating ring is in contact with a limiting ring, and the limiting ring is kept level with the liquid level of the damping fluid.

4. The soft support brush holder low noise blower assembly according to claim 3 is characterized in that: The lifting member also includes an arc-shaped cylinder arranged inside the blower body, an arc-shaped spring is arranged in the arc-shaped cylinder, a first piston block is arranged at the outer end of the arc-shaped spring, an arc-shaped piston rod is arranged at the outer side of the first piston block, a wind shield is arranged at the outer end of the arc-shaped piston rod, a vertical extension cylinder is arranged through the middle of the arc-shaped cylinder, a second piston block is arranged at the top of the extension cylinder, and the lifting column is vertically fixed on the second piston block.

5. The soft support brush holder low noise blower assembly according to claim 4 is characterized in that: The arc-shaped cylinder, the arc-shaped piston rod and the arc-shaped spring are co-centered with the center of the blower body.

6. The soft support brush holder low noise blower assembly according to claim 5, characterized in that: The traction member includes a U-shaped rod arranged between the tops of the two clamping plates, the middle part of the U-shaped rod is fixed to the jacking column, and the two ends of the U-shaped rod are respectively fixed to the fan-shaped sound-absorbing panels at the middle positions of the two clamping plates. The outer ends of the fan-shaped sound-absorbing panels are provided with arc-shaped slides, and an arc-shaped traction rod is slidably provided in the arc-shaped slides. One end of the arc-shaped traction rod extends out of the arc-shaped slide and is connected to the fan-shaped sound-absorbing panel at the middle position by a connecting rod.

7. The soft support brush holder low noise blower assembly according to claim 6, characterized in that: A vibration transmission plate is inserted into the bottom of the accommodating slot, and an extension slot for the vibration transmission plate to pass through is provided on the sealing cover. The bottom of the vibration transmission plate passes through the extension slot and extends into the top of the liquid hopper. The bottom end of the vibration transmission plate is set to be V-shaped, and a V-shaped slide groove is provided at the top of the vibration transmission plate. A pair of sliders are provided in the middle of the slide groove, and an inclined pressure rod is fixed between the slider and the bottom end of the adjacent fan-shaped sound-absorbing panel.

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