Noise reduction structure applied to high-speed centrifugal blower

Abstract

The utility model relates to the technical field of centrifugal blowers, and discloses a noise reduction structure applied to a high-speed centrifugal blower, which comprises a base, a mounting mechanism is fixedly connected to the top of the base, a clamping mechanism is fixedly connected to the top of the mounting mechanism, and a damping strip is arranged in the top end of the base. A noise reduction outer cover is fixedly connected to the top of the damping strip, an insertion limiting block is fixedly connected to the position, close to the middle, of the top of the base, insertion rods are fixedly connected to the left end and the right end of the top of the base correspondingly, air blower equipment is fixedly connected to the middle of the top of the base, and the interior of the insertion limiting block is slidably connected with the surfaces of the insertion rods. According to the noise reduction structure applied to the high-speed centrifugal blower, through the arranged mounting mechanism, the upper inclined block moves to the top of the lower inclined block, so that the noise reduction outer cover is mounted and preliminarily clamped, and then mounting and dismounting operation during maintenance is facilitated when dust in the high-speed centrifugal blower is cleaned regularly.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal blowers, in particular to a noise reduction structure applied to high-speed centrifugal blowers. Background Art

[0002] A centrifugal blower is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. In the diffuser, the gas changes its flow direction and causes deceleration. This deceleration effect converts kinetic energy into pressure energy. It is often used in places where air flow is required.

[0003] According to patent number CN 218439934 U, a noise reduction structure of a high-speed and high-pressure centrifugal blower is disclosed, which specifically relates to the technical field of centrifugal blowers, including a first protective pad, the first protective pad is made of rubber material, a first groove is opened inside the first protective pad, a placement plate is arranged inside the first groove, and a plurality of first bolts are evenly arranged on the top of the first protective pad.

[0004] The noise reduction structure of the high-speed and high-pressure centrifugal blower can achieve a certain noise reduction effect when in use. However, it is inevitable that a large amount of dust in the air will enter the interior of the high-speed centrifugal blower when inhaling air, and may cause a decrease in the air volume output of the high-speed centrifugal blower. Therefore, in order to ensure the air volume output power of the equipment when in use, it is necessary to regularly clean the dust inside the high-speed centrifugal blower. The bolts used in the original solution are not convenient for installation and disassembly operations during regular maintenance. On the other hand, every time the bolts are tightened, there will be a phenomenon that the bolts will slip and cannot be tightened. Therefore, the original technical solution needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a noise reduction structure applied to a high-speed centrifugal blower to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise reduction structure applied to a high-speed centrifugal blower, comprising a base, a mounting mechanism fixedly connected to the top of the base, a clamping mechanism fixedly connected to the top of the mounting mechanism, a shock-absorbing strip arranged inside the top of the base, a noise reduction outer cover fixedly connected to the top of the shock-absorbing strip, a limited plug-in block fixedly connected near the middle of the top of the base, plug-in rods fixedly connected to the left and right ends of the top of the base respectively, a blower device fixedly connected to the middle of the top of the base, and the inside of the limited plug-in block is slidably connected to the surface of the plug-in rod;

[0007] The installation mechanism includes a locking assembly and a fixing assembly, and the fixing assembly is arranged inside the locking assembly;

[0008] The clamping mechanism includes a positioning ring, which is fixedly connected to the top of the locking assembly, a supporting tube is arranged inside the positioning ring, a round shaft is slidably connected inside the supporting tube, a knob is fixedly connected to the top of the round shaft, a hollow connecting plate is fixedly connected to the bottom of the round shaft, a second spring is fixedly connected to the top of the hollow connecting plate, a ring positioning strip is fixedly connected to the bottom of the hollow connecting plate, the top of the second spring is fixedly connected to the top of the inside of the supporting tube, and an eccentric wheel is fixedly connected to the top of the surface of the supporting tube.

[0009] Preferably, the locking assembly includes a locking seat, the locking seat is fixedly connected to the top of the base, the left and right ends of the locking seat are respectively slidably connected to the limiting slide bar, the top of one end of the limiting slide bar is fixedly connected to an L-shaped seat, a T-shaped block is provided inside the top of the locking seat, the top of the T-shaped block is fixedly connected to a connecting block, one end of the connecting block is fixedly connected to an upper inclined block, a lower inclined block is provided at the bottom of the upper inclined block, the top of the locking seat is rotatably connected to the bottom end of the support tube, and the bottom end of the positioning ring is fixedly connected to the top of the locking seat.

[0010] Preferably, a slide groove is provided inside the top of the locking seat, and the surface of the T-shaped block is slidably connected to the inside of the slide groove, so that the T-shaped block can slide under the limit in the slide groove, thereby providing support when the upper inclined block and the lower inclined block are tightly fitted.

[0011] Preferably, the fixing assembly includes a first spring, which is fixedly connected to the inside of the L-shaped seat, one end of the first spring is fixedly connected to an I-shaped long strip, one end of the I-shaped long strip is fixedly connected to a long connecting strip, one end of the bottom of the long connecting strip is fixedly connected to a cross strip, one side of the cross strip is fixedly connected to a clamping strip, and the front of the L-shaped seat is fixedly connected to an I-shaped handle.

[0012] Preferably, a T-shaped groove is provided inside the L-shaped seat, and openings are provided on the front and sides of the T-shaped groove. The surface of the I-shaped strip is slidably connected to the inside of the T-shaped groove, so that the I-shaped strip can slide under the limit of the front side of the T-shaped groove, thereby providing auxiliary support for the L-shaped seat and the upper inclined block when they move.

[0013] Preferably, a positioning hole is provided on the side of the clamping seat, and the surface of the clamping strip matches the inside of the positioning hole.

[0014] Preferably, an arc-shaped groove is opened inside the hollow connecting plate, and a groove is opened on the side of the supporting tube. The surface of the supporting tube is slidingly connected to the inside of the arc-shaped groove, so that the hollow connecting plate can slide under the limit of the supporting tube surface, thereby performing a supporting and limiting function when the ring positioning bar moves.

[0015] Compared with the prior art, the utility model provides a noise reduction structure applied to a high-speed centrifugal blower, which has the following beneficial effects:

[0016] 1. The noise reduction structure applied to high-speed centrifugal blowers uses an installed mechanism to hold the I-shaped handle and the I-shaped long strip at the same time and drive the long connecting strip to move, so that the cross strip drives the card strip to detach from the inside of the side of the card seat, and then move the L-shaped seat and drive the connecting block to move, so that the upper inclined block moves to the top of the lower inclined block, so as to perform preliminary card installation of the noise reduction outer cover, thereby facilitating the installation and disassembly operations during maintenance when regularly cleaning the dust inside the high-speed centrifugal blower.

[0017] 2. The noise reduction structure applied to high-speed centrifugal blowers uses a clamping mechanism to rotate the knob to drive the hollow connecting plate and the support tube to rotate, thereby driving the eccentric wheel to rotate so that the end of the eccentric wheel farthest from the center of the circle slowly pushes the upper inclined block, and drives the upper inclined block to fit tightly against the top of the lower inclined block and become tighter and tighter. Then, the knob is turned downward and the ring positioning strip is inserted into the inside of the positioning ring, so that the noise reduction outer cover can be tightened and reinforced to avoid the phenomenon of bolts slipping and not being able to be tightened in the original plan during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0020] Figure 2 This is a three-dimensional split cross-sectional view of the clamping assembly of the utility model;

[0021] Figure 3 This is a three-dimensional diagram of the fixing assembly of the utility model;

[0022] Figure 4 This is a three-dimensional split cross-sectional view of the clamping mechanism of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the parts of the utility model;

[0024] Figure 6 It is a three-dimensional diagram of the base of the utility model.

[0025] In the figure: 1. base; 2. mounting mechanism; 21. positioning assembly; 211. positioning seat; 212. limiting slide bar; 213. L-shaped seat; 214. T-shaped block; 215. connecting block; 216. upper inclined block; 217. lower inclined block; 22. fixing assembly; 221. first spring; 222. I-shaped long strip; 223. long connecting strip; 224. cross strip; 225. clamping strip; 226. I-shaped handle; 3. clamping mechanism; 31. positioning ring; 32. supporting cylinder; 33. round shaft; 34. eccentric wheel; 35. second spring; 36. hollow connecting plate; 37. ring positioning strip; 38. knob; 4. shock absorbing strip; 5. noise reduction cover; 6. limiting plug block; 7. plug rod; 8. blower equipment. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The utility model provides the following technical solutions: Example

[0029] Combination Figures 2 to 6 A noise reduction structure for a high-speed centrifugal blower includes a base 1, a mounting mechanism 2 is fixedly connected to the top of the base 1, a clamping mechanism 3 is fixedly connected to the top of the mounting mechanism 2, a shock-absorbing strip 4 is arranged inside the top of the base 1, a noise reduction outer cover 5 is fixedly connected to the top of the shock-absorbing strip 4, a limited plug block 6 is fixedly connected to the middle of the top of the base 1, plug rods 7 are fixedly connected to the left and right ends of the top of the base 1, a blower device 8 is fixedly connected to the middle of the top of the base 1, and the inside of the limited plug block 6 is slidably connected to the surface of the plug rod 7;

[0030] The installation mechanism 2 includes a positioning component 21 and a fixing component 22, and the fixing component 22 is arranged inside the positioning component 21;

[0031] The clamping mechanism 3 includes a positioning ring 31, which is fixedly connected to the top of the positioning assembly 21. A support tube 32 is arranged inside the positioning ring 31. A round shaft 33 is slidably connected inside the support tube 32. A knob 38 is fixedly connected to the top of the round shaft 33. A hollow connecting plate 36 is fixedly connected to the bottom of the round shaft 33. A second spring 35 is fixedly connected to the top of the hollow connecting plate 36. A ring positioning strip 37 is fixedly connected to the bottom of the hollow connecting plate 36. The top of the second spring 35 is fixedly connected to the top of the inner part of the support tube 32. An eccentric wheel 34 is fixedly connected to the top of the surface of the support tube 32. The positioning assembly 21 includes A locking seat 211 is fixedly connected to the top of the base 1, and the left and right ends of the locking seat 211 are slidably connected with the limiting slide bar 212 respectively. The top of one end of the limiting slide bar 212 is fixedly connected with an L-shaped seat 213. A T-shaped block 214 is arranged inside the top of the locking seat 211, and a connecting block 215 is fixedly connected to the top of the T-shaped block 214. An upper inclined block 216 is fixedly connected to one end of the connecting block 215, and a lower inclined block 217 is arranged at the bottom of the upper inclined block 216. The top of the locking seat 211 is rotatably connected to the bottom end of the support tube 32, and the bottom end of the positioning ring 31 is fixedly connected to the top of the locking seat 211.

[0032] Furthermore, a slide groove is provided inside the top of the positioning seat 211, and the surface of the T-shaped block 214 is slidably connected to the inside of the slide groove. The I-shaped handle 226 and the I-shaped long strip 222 are held by hand at the same time, and the long connecting strip 223 is driven to move, so that the cross strip 224 drives the card strip 225 to detach from the inside of the side of the positioning seat 211. Then, when the L-shaped seat 213 is moved and the connecting block 215 is driven to move, the upper inclined block 216 is moved to the top of the lower inclined block 217, so as to perform preliminary positioning for the installation of the noise reduction outer cover 5, thereby facilitating the installation and disassembly operations during regular dust cleaning of the interior of the high-speed centrifugal blower during maintenance. Example

[0033] See also Figure 1-6 On the basis of the first embodiment, the fixing assembly 22 further comprises a first spring 221, the first spring 221 is fixedly connected to the inside of the L-shaped seat 213, one end of the first spring 221 is fixedly connected to an I-shaped strip 222, one end of the I-shaped strip 222 is fixedly connected to a long connecting strip 223, one end of the bottom of the long connecting strip 223 is fixedly connected to a cross bar 224, one side of the cross bar 224 is fixedly connected to a clamping strip 225, an I-shaped handle 226 is fixedly connected to the front of the L-shaped seat 213, a T-shaped slot is provided inside the L-shaped seat 213, openings are provided on the front and side of the T-shaped slot, the surface of the I-shaped strip 222 is slidably connected to the inside of the T-shaped slot, a positioning hole is provided on the side of the clamping seat 211, and the surface of the clamping strip 225 matches the inside of the positioning hole.

[0034] Furthermore, an arc-shaped groove is provided inside the hollow connecting plate 36, and a groove is provided on the side of the supporting tube 32. The surface of the supporting tube 32 is slidably connected to the inside of the arc-shaped groove. The knob 38 is turned to drive the hollow connecting plate 36 and the supporting tube 32 to rotate, thereby driving the eccentric wheel 34 to rotate, so that the end of the eccentric wheel 34 farthest from the center of the circle slowly pushes the upper inclined block 216, and drives the upper inclined block 216 to fit tightly against the top of the lower inclined block 217 and become tighter and tighter. Then, the knob 38 is turned downward and the ring positioning strip 37 is inserted into the inside of the positioning ring 31, so that the noise reduction outer cover 5 can be tightened and reinforced to avoid the phenomenon of bolts slipping and not being able to be tightened in the original scheme during use.

[0035] In actual operation, when this device is used, the bottom of the upper inclined block 216 and the top of the lower inclined block 217 are both provided with inclined surfaces, and sound insulation cotton is arranged inside the noise reduction outer cover 5. When the blower device 8 is used, the noise reduction outer cover 5 needs to be installed for noise reduction. At this time, the shock absorbing strip 4 at the bottom of the noise reduction outer cover 5 is stuck on the top of the base 1, and the limit plug block 6 is sleeved on the plug rod 7. Then, the I-shaped handle 226 and the I-shaped long strip 222 are held by hand at the same time and the long connecting strip 223 is driven to move, so that the cross strip 224 drives the card strip 225 to detach from the inside of the side of the card seat 211. Then, when the L-shaped seat 213 is moved and the connecting block 215 is driven to move, the upper inclined block 216 is moved to the top of the lower inclined block 217, so as to perform the preliminary card position of the installation of the noise reduction outer cover 5.

[0036] Afterwards, the noise reduction outer cover 5 needs to be tightened and reinforced. At this time, the knob 38 is turned upward to allow the ring positioning strip 37 to detach from the inside of the positioning ring 31, and then the knob 38 is turned to drive the hollow connecting plate 36 and the support tube 32 to rotate, thereby driving the eccentric wheel 34 to rotate, so that the end of the eccentric wheel 34 farthest from the center of the circle slowly pushes the upper inclined block 216, and drives the upper inclined block 216 to fit tightly against the top of the lower inclined block 217 and become tighter and tighter, and then the knob 38 is turned downward to allow the ring positioning strip 37 to be inserted into the inside of the positioning ring 31, so that the noise reduction outer cover 5 can be tightened and reinforced.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants 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, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A noise reduction structure for a high-speed centrifugal blower, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a mounting mechanism (2), the top of the mounting mechanism (2) is fixedly connected to a clamping mechanism (3), a shock absorbing strip (4) is provided inside the top of the base (1), the top of the shock absorbing strip (4) is fixedly connected to a noise reduction outer cover (5), a limited plug block (6) is fixedly connected near the middle of the top of the base (1), the left and right ends of the top of the base (1) are respectively fixedly connected to plug rods (7), a blower device (8) is fixedly connected to the middle of the top of the base (1), and the inside of the limited plug block (6) is slidably connected to the surface of the plug rod (7); The installation mechanism (2) comprises a locking assembly (21) and a fixing assembly (22), wherein the fixing assembly (22) is arranged inside the locking assembly (21); The clamping mechanism (3) comprises a positioning ring (31), the positioning ring (31) being fixedly connected to the top of the locking assembly (21), a supporting tube (32) being arranged inside the positioning ring (31), a round shaft (33) being slidably connected inside the supporting tube (32), a knob (38) being fixedly connected to the top of the round shaft (33), a hollow connecting plate (36) being fixedly connected to the bottom of the round shaft (33), a second spring (35) being fixedly connected to the top of the hollow connecting plate (36), a ring positioning strip (37) being fixedly connected to the bottom of the hollow connecting plate (36), the top of the second spring (35) being fixedly connected to the top of the inside of the supporting tube (32), and an eccentric wheel (34) being fixedly connected to the top of the surface of the supporting tube (32).

2. The noise reduction structure for a high-speed centrifugal blower according to claim 1, characterized in that: The locking assembly (21) comprises a locking seat (211), the locking seat (211) being fixedly connected to the top of the base (1), the left and right ends of the locking seat (211) being slidably connected to limit slide bars (212) respectively, the top of one end of the limit slide bar (212) being fixedly connected to an L-shaped seat (213), the top of the locking seat (211) being provided with a T-shaped block (214), the top of the T-shaped block (214) being fixedly connected to a connecting block (215), one end of the connecting block (215) being fixedly connected to an upper inclined block (216), the bottom of the upper inclined block (216) being provided with a lower inclined block (217), the top of the locking seat (211) being rotatably connected to the bottom of the support tube (32), and the bottom of the positioning ring (31) being fixedly connected to the top of the locking seat (211).

3. The noise reduction structure for a high-speed centrifugal blower according to claim 2, characterized in that: A sliding groove is provided inside the top of the locking seat (211), and the surface of the T-shaped block (214) is slidably connected to the inside of the sliding groove.

4. The noise reduction structure for a high-speed centrifugal blower according to claim 2, characterized in that: The fixing assembly (22) comprises a first spring (221), the first spring (221) being fixedly connected to the inside of the L-shaped seat (213), one end of the first spring (221) being fixedly connected to an I-shaped long strip (222), one end of the I-shaped long strip (222) being fixedly connected to a long connecting strip (223), one end of the bottom of the long connecting strip (223) being fixedly connected to a cross strip (224), one side of the cross strip (224) being fixedly connected to a clamping strip (225), and the front of the L-shaped seat (213) being fixedly connected to an I-shaped handle (226).

5. The noise reduction structure for a high-speed centrifugal blower according to claim 2, characterized in that: A T-shaped groove is provided inside the L-shaped seat (213), and openings are provided on the front and side surfaces of the T-shaped groove. The surface of the I-shaped strip (222) is slidably connected to the inside of the T-shaped groove.

6. The noise reduction structure for a high-speed centrifugal blower according to claim 4, characterized in that: A positioning hole is provided on the side of the clamping seat (211), and the surface of the clamping strip (225) matches the inside of the positioning hole.

7. The noise reduction structure for a high-speed centrifugal blower according to claim 1, characterized in that: The hollow connection plate (36) has an arc-shaped slot inside, the side of the support tube (32) has a slot, and the surface of the support tube (32) is slidably connected to the inside of the arc-shaped slot.

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