Noise reduction equipment display structure

Abstract

The utility model provides a noise reduction equipment display structure which comprises a base, a fresh air ventilator is arranged on the base in a sliding mode through a horizontal movement mechanism, a sealing piece is arranged on an exhaust port of the fresh air ventilator in a sleeved mode, a stand column is fixedly arranged on the base, and a sleeve is connected to the surface of the stand column in a rotating mode through a locking structure. The fresh air ventilator is installed on the traction base capable of moving horizontally, the traction base is controlled through the motor and the lead screw, the traction base drives the exhaust port of the fresh air ventilator to tightly abut against the interior of the air inlet of the resistive silencer through the sealing piece, then the intensity of noise is detected through the decibel meter at the exhaust port of the resistive silencer, and the noise is detected through the decibel meter. According to the invention, the sleeve can be rotated through the locking mechanism, so that a customer can intuitively observe the noise reduction performance of the current resistive silencer, and meanwhile, the sleeve can be limited through the locking mechanism after the sleeve is rotated, so that switching among different types of resistive silencers is realized, and the noise reduction performance of different resistive silencers can be conveniently observed.

Description

TECHNICAL FIELD

[0001] The utility model relates to noise reduction equipment display technical field, concretely is a kind of noise reduction equipment display structure. BACKGROUND

[0002] The muffler refers to the airflow duct with noise propagation, can use the duct with sound-absorbing lining and elbow or utilize the noise reduction device of sudden change and other acoustic impedance discontinuity of section area, so that the noise in duct is attenuated or reflected back, the former is called resistive muffler, the latter is called resistive muffler, there is also impedance composite muffler;

[0003] At present, some manufacturers of resistive muffler produce many different kinds of resistive muffler, and their noise reduction performance is different from each other, when showing noise reduction performance to customers, mostly can only simply introduce through language, or provide experimental data for reference, it is difficult to intuitively show the noise reduction performance of resistive muffler for customers. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of noise reduction equipment display structure to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of noise reduction equipment display structure, including base, the base is slidably provided with fresh air machine on the base by horizontal motion mechanism, the exhaust port of the fresh air machine is sleeved with sealing element, the base is fixedly provided with stand, the surface of the stand is rotatably connected with sleeve by locking structure, the surface of the sleeve is fixedly connected with multiple platforms at equal intervals, the platform is installed with resistive muffler by clamping mechanism, one end of the resistive muffler is connected on the exhaust port of fresh air machine by sealing element, the center position of the top of the stand is fixedly installed with decibel instrument, the horizontal midline of the resistive muffler is directed to the center of the top of the stand.

[0007] Preferably, the horizontal motion mechanism includes lead screw, motor, traction seat and vertical plate, two vertical plates are fixedly installed on the top of traction seat, the fresh air machine is fixedly installed between two vertical plates, the lead screw is rotatably connected to the top of base, the motor is fixedly installed on the side surface of base and connected with lead screw, the traction seat is threadedly connected to the surface of lead screw and connected with base by guide structure.

[0008] Preferably, the sealing element includes cylindrical portion and conical portion, the conical portion is integrally formed on one side of cylindrical portion, the cylindrical portion is sleeved on the exhaust port of fresh air machine, the conical portion extends into the air inlet of resistive muffler, the sealing element is of rubber material.

[0009] Preferably, the locking structure comprises a groove, a spherical protrusion, a cavity and a spring, the cavity is arranged on the surface of the column, the groove is arranged on the inner wall of the sleeve, the spherical protrusion is slidingly connected to the inside of the cavity, the spherical end of the spherical protrusion is engaged with the inside of the groove, and the spring is fixedly connected between the cavity and the spherical protrusion.

[0010] Preferably, the clamping mechanism comprises a clamping plate, a support, a crank handle and a double-threaded rod, the support is fixedly installed on the top of the platform, the double-threaded rod penetrates through the support and is rotationally connected to the top of the platform, two clamping plates are symmetrically and threadedly connected to the surface of the double-threaded rod, the thread directions of the double-threaded rod on both sides of the support are opposite, the crank handle is fixedly connected to one end of the double-threaded rod, and the bottom of the clamping plate abuts against the surface of the platform.

[0011] Preferably, the clamping plate is in contact with the side surface of the resistive muffler, and the bottom of the clamping plate is fixedly installed with a support plate which is in contact with the bottom of the resistive muffler.

[0012] Preferably, the guiding structure comprises a sliding groove and a roller, the sliding groove is arranged on the surface of the base along the axial direction of the lead screw, and the roller is rotationally connected to the bottom of the traction seat and in contact with the bottom of the sliding groove.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model installs the fresh air machine on the traction seat which can move horizontally, controls the traction seat through the motor and the lead screw, makes the traction seat drive the exhaust port of the fresh air machine to abut against the air inlet of the resistive muffler through the sealing element, detects the intensity of the noise at the exhaust port of the resistive muffler through the decibel instrument, so that the customer can directly observe the noise reduction performance of the current resistive muffler, and the locking mechanism can limit the sleeve after the rotation of the sleeve, so that the switching between different kinds of resistive mufflers is realized, and the noise reduction performance of different resistive mufflers is observed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the main body structure schematic diagram of the utility model;

[0016] Figure 2 It is the connecting structure schematic diagram of the development board body and the supporting leg of the utility model;

[0017] Figure 3 It is the internal structure schematic diagram of the adjusting seat of the utility model;

[0018] Figure 4 It is the main body structure schematic diagram of the adjusting mechanism of the utility model;

[0019] Figure 5 It is a top view structure schematic diagram of the support mechanism.

[0020] In the figure: 1, base; 2, fresh air machine; 3, sealing element; 31, cylindrical part; 32, conical part; 4, stand; 5, sleeve; 6, platform; 7, resistive silencer; 8, decibel meter; 9, screw rod; 10, motor; 11, traction seat; 12, vertical plate; 13, groove; 14, spherical protrusion; 15, cavity; 16, spring; 17, clamping plate; 18, support; 19, crank; 20, double-threaded rod; 21, support plate; 22, sliding groove; 23, roller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides a kind of noise reduction equipment display structure, including base 1, fresh air machine 2 is slidably arranged on base 1 by horizontal movement mechanism, sealing element 3 is sleeved on the exhaust port of fresh air machine 2, vertical column 4 is fixedly arranged on base 1, sleeve 5 is rotatably connected on the surface of vertical column 4 by locking structure, the surface of sleeve 5 is horizontally equidistantly fixedly connected with multiple platforms 6, resistive silencer 7 is installed on platform 6 by clamping mechanism, one end of resistive silencer 7 is connected on the exhaust port of fresh air machine 2 by sealing element 3, decibel meter 8 is fixedly installed in the center position of the top of vertical column 4, and the horizontal midline of resistive silencer 7 points to the center of the top of vertical column 4.

[0023] Please refer to Figure 1 Fresh air machine 2 converts the gas of outside into airflow to pass through resistive silencer 7, and then the noise at the exhaust port of resistive silencer 7 is detected by decibel meter 8, and then the noise at the exhaust port of fresh air machine 2 is detected separately, and the detection results of the two are compared to obtain the noise reduction effect of resistive silencer 7, and different specifications or types of resistive silencers 7 can be replaced by clamping mechanism, and the number of platforms 6 is set to six in the embodiment, and different types of resistive silencers 7 can be placed on six platforms 6, such as straight pipe type resistive silencer 7, sheet type resistive silencer 7, honeycomb type resistive silencer 7, or various resistive silencers 7 filled with different materials, such as glass fiber, low-carbon steel wire mesh and felt.

[0024] The horizontal moving mechanism comprises a screw rod 9, a motor 10, a traction seat 11 and two vertical plates 12, the two vertical plates 12 are fixedly installed on the top of the traction seat 11, the fresh air machine 2 is fixedly installed between the two vertical plates 12, the screw rod 9 is horizontally rotatably connected to the top of the base 1, the motor 10 is fixedly installed on the side of the base 1 and connected with the screw rod 9, and the traction seat 11 is threadedly connected to the surface of the screw rod 9 and connected with the base 1 through a guide structure.

[0025] Please refer to Figure 1 The motor 10 drives the screw rod 9 to rotate, the screw rod 9 drives the traction seat 11 to move linearly on the surface of the base 1, and then drives the fresh air machine 2 to move synchronously through the vertical plates 12, so that the air outlet of the fresh air machine 2 gradually approaches the resistive muffler 7, and the air outlet of the fresh air machine 2 is connected to the air inlet of the resistive muffler 7 through the sealing element 3, the sealing element 3 can seal the connection between the fresh air machine 2 and the resistive muffler 7, so that the airflow can smoothly enter the resistive muffler 7 from the fresh air machine 2.

[0026] The sealing element 3 comprises a cylindrical part 31 and a conical part 32, the conical part 32 is integrally formed on one side of the cylindrical part 31, the cylindrical part 31 is sleeved on the air outlet of the fresh air machine 2, the conical part 32 extends into the air inlet of the resistive muffler 7, and the sealing element 3 is made of rubber.

[0027] Please refer to Figure 5 Since the specification of the fresh air machine 2 is fixed, the cylindrical part 31 can be directly fixed on the air outlet of the fresh air machine 2, and since the size of the air inlet of the resistive muffler 7 is different, the conical part 32 extends into the air inlet of the resistive muffler 7, so that the generatrix of the conical part 32 can adapt to the air inlets of resistive mufflers 7 of different specifications.

[0028] It should be noted that, during the movement of the fresh air machine 2 driven by the traction seat 11, since the overall material of the sealing element 3 is rubber and has a certain elasticity, the screw rod 9 and the motor 10 need to continuously drive the fresh air machine 2 to move in the direction of approaching the resistive muffler 7 within a certain range, until the conical part 32 abuts against the air inlet of the resistive muffler 7 and the conical part 32 deforms to a certain extent.

[0029] The locking structure comprises a groove 13, a spherical protrusion 14, a cavity 15 and a spring 16, the cavity 15 is arranged on the surface of the vertical column 4, the groove 13 is arranged on the inner wall of the sleeve 5, the spherical protrusion 14 is slidably connected to the inside of the cavity 15, the spherical surface end of the spherical protrusion 14 is engaged with the inside of the groove 13, and the spring 16 is fixedly connected between the cavity 15 and the spherical protrusion 14.

[0030] Please refer to Figure 3When the sleeve 5 is rotated, the sleeve 5 can drive the platform 6 to rotate, and then the platform 6 drives the resistive silencer 7 to rotate, so as to detect the noise reduction performance of the resistive silencer 7 of different specifications. When the sleeve 5 is rotated, the sleeve 5 can drive the groove 13 to rotate synchronously. At this time, the groove 13 can extrude the spherical protrusion 14, so that the spherical protrusion 14 moves to the inside of the cavity 15 and compresses the spring 16. With the rotation of the sleeve 5, the spherical protrusion 14 is separated from the inside of the groove 13. At this time, the spherical protrusion 14 abuts against the inner wall of the sleeve 5. Until the sleeve 5 is rotated by 60°, the spherical protrusion 14 enters the next groove 13 under the action of the spring 16. At this time, the sleeve 5 drives the sleeve 5 to switch to the next platform 6, so that the new fan 2 and the decibel instrument 8 can detect the noise reduction performance of the resistive silencer 7 on the next platform 6.

[0031] The clamping mechanism includes clamping plates 17, a support 18, a rocking handle 19 and a double-threaded rod 20. The support 18 is fixedly installed on the top of the platform 6. The double-threaded rod 20 penetrates through the support 18 and is rotationally connected to the top of the platform 6. The two clamping plates 17 are symmetrically and threadedly connected to the surface of the double-threaded rod 20. The screw directions of the double-threaded rod 20 on both sides of the support 18 are opposite. The rocking handle 19 is fixedly connected to one end of the double-threaded rod 20. The bottom of the clamping plate 17 abuts against the surface of the platform 6. The clamping plate 17 is in contact with the side surface of the resistive silencer 7. The bottom of the clamping plate 17 is fixedly installed with a supporting plate 21. The supporting plate 21 is in contact with the bottom of the resistive silencer 7.

[0032] Please refer to Figure 2 Rotating the rocking handle 19 can drive the double-threaded rod 20 to rotate. When the double-threaded rod 20 rotates, it can simultaneously drive the two clamping plates 17 to move closer to or farther away from each other. When the two clamping plates 17 move closer to each other, they can clamp the resistive silencer 7 from the side. At the same time, the resistive silencer 7 is supported by the supporting plate 21. Since the distance between the two clamping plates 17 can be adjusted within a certain range, the resistive silencer 7 of different specifications can also be clamped and fixed.

[0033] It should be noted that if the resistive silencer 7 of different specifications is used, the height of the exhaust port of the resistive silencer 7 will change. Therefore, the height of the new fan 2 on the vertical plate 12 needs to be adjusted again. In this embodiment, a vertical electric push rod can be additionally arranged between the vertical plate 12 and the new fan 2 to adjust the height of the new fan 2.

[0034] The guide structure includes a sliding groove 22 and a roller 23. The sliding groove 22 is formed on the surface of the base 1 along the axial direction of the lead screw 9. The roller 23 is rotationally connected to the bottom of the traction seat 11, and the bottom of the roller 23 is in contact with the bottom of the sliding groove 22.

[0035] Please refer to Figure 1 and 4When the traction seat 11 moves horizontally, the traction seat 11 can drive the rollers 23 to move synchronously, and at this time, the rollers 23 can slide in the inside of the sliding groove 22, and since the rollers 23 are in contact with the bottom of the sliding groove 22, the sliding friction between the rollers 23 and the sliding groove 22 becomes rolling friction, thereby facilitating the movement of the traction seat 11.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A noise reduction device display structure, characterized by, The utility model provides a new fan, the utility model discloses a base (1) on the base (1) is provided with new fan (2) through horizontal movement mechanism slidingly, the exhaust port of new fan (2) is equipped with sealing element (3), the surface of fixedly provided with stand (4) on the base (1), the surface of stand (4) is rotatably connected with sleeve (5) through locking structure, the surface of sleeve (5) is equidistantly fixedly connected with a plurality of platforms (6), the platform (6) is installed with resistive silencer (7) through clamping mechanism, the one end of resistive silencer (7) is connected on the exhaust port of new fan (2) through sealing element (3), the center position of the top of stand (4) is fixedly installed with decibel instrument (8), and the horizontal midline of resistive silencer (7) points to the center of the top of stand (4).

2. A noise reducing device display structure according to claim 1, wherein: The horizontal movement mechanism includes a lead screw (9), a motor (10), a traction seat (11) and a vertical plate (12), two vertical plates (12) are fixedly installed on the top of the traction seat (11), the new fan (2) is fixedly installed between the two vertical plates (12), the lead screw (9) is rotatably connected to the top of the base (1), the motor (10) is fixedly installed on the side of the base (1) and connected with the lead screw (9), the traction seat (11) is threadedly connected to the surface of the lead screw (9) and connected with the base (1) through a guide structure.

3. A noise reducing device display structure according to claim 2, wherein: The sealing element (3) includes a cylindrical part (31) and a conical part (32), the conical part (32) is integrally formed on one side of the cylindrical part (31), the cylindrical part (31) is sleeved on the exhaust port of the new fan (2), the conical part (32) extends into the air inlet of the resistive silencer (7), and the sealing element (3) is made of rubber.

4. A noise reducing device display structure according to claim 1, wherein: The locking structure includes a groove (13), a spherical protrusion (14), a cavity (15) and a spring (16), the cavity (15) is arranged on the surface of the stand (4), the groove (13) is arranged on the inner wall of the sleeve (5), the spherical protrusion (14) is slidably connected to the inside of the cavity (15), the spherical surface end of the spherical protrusion (14) is engaged with the inside of the groove (13), and the spring (16) is fixedly connected between the cavity (15) and the spherical protrusion (14).

5. A noise reducing device display structure according to claim 2, wherein: The clamping mechanism includes a clamping plate (17), a support (18), a ratchet handle (19) and a double-threaded rod (20), the support (18) is fixedly installed on the top of the platform (6), the double-threaded rod (20) penetrates through the support (18) and is rotatably connected to the top of the platform (6), two clamping plates (17) are symmetrically threadedly connected to the surface of the double-threaded rod (20), the thread directions of the double-threaded rod (20) on both sides of the support (18) are opposite, the ratchet handle (19) is fixedly connected to one end of the double-threaded rod (20), and the bottom of the clamping plate (17) abuts against the surface of the platform (6).

6. A noise reducing device display structure according to claim 5, wherein: The clamping plate (17) contacts the side surface of the resistive silencer (7), and the bottom of the clamping plate (17) is fixedly installed with a support plate (21) which contacts the bottom of the resistive silencer (7).

7. A noise reducing device display structure according to claim 6, wherein: The guiding structure comprises a sliding groove (22) and a roller (23), the sliding groove (22) is arranged on the surface of the base (1) along the axial direction of the screw rod (9), the roller (23) is rotatably connected to the bottom of the traction seat (11), and the bottom of the roller (23) is in contact with the bottom of the sliding groove (22).

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