A low-noise vertical multi-purpose vibrator

Abstract

This utility model discloses a low-noise vertical multi-purpose vibrator, relating to the field of laboratory equipment technology. It includes a base and a mounting frame slidably mounted on the base. A limiting plate is provided on the mounting frame, with a first buffer portion at the bottom of the limiting plate and a second buffer portion on the mounting frame. The two ends of a separating funnel abut against the first and second buffer portions, respectively. A drive unit is provided inside the base for driving the mounting frame to reciprocate and move up and down. This utility model uses a damping air cylinder and springs to buffer the separating funnel, reducing collision noise and simultaneously securing it firmly. This solves the problems of noise generated by the collision between the separating funnel and the mounting frame and limiting plate during vibration, as well as the problem of unstable fixation. While buffering vibration, the damping air cylinder can also work with the filter layer to drive the air inside the transparent cover to circulate and filter harmful gases, solving the problem of harmful gas accumulation in the sealed space and the potential hazards when the transparent cover is opened.

Description

Technical Field

[0001] This utility model belongs to the technical field of laboratory equipment, specifically, it relates to a low-noise vertical multi-purpose vibrator. Background Technology

[0002] In laboratory or industrial applications, vertical vibrators are often used to mix, disperse, or shake liquids in containers such as separatory funnels.

[0003] The liquid inside the separatory funnel will exhibit a violent turbulent state under vertical vibration: for low-viscosity liquids (such as organic solvents and aqueous solutions), high-frequency fluctuations will form on the liquid surface, and liquid molecules will repeatedly impact the inner wall of the funnel at high speed, producing a continuous "slapping sound"; for high-viscosity liquids (such as slurries and colloidal solutions), eddies will form inside due to shear force. The friction between the eddies and the funnel wall and the collisions between the eddies will produce low-frequency booming noise (sound pressure level of about 75-90dB). The noise generated by the liquid impacting the funnel wall and the noise from the rigid collision of equipment parts are superimposed to form a composite noise source, which will not only cause auditory discomfort to the operators (long-term exposure may lead to occupational health problems such as hearing damage and neurasthenia), but also interfere with the operation of precision instruments in the laboratory or workshop (such as acoustic testing equipment and microbalances). In view of the above problems, a low-noise vertical multi-purpose vibrator is proposed here. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a low-noise vertical multi-purpose vibrator that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A low-noise vertical multi-purpose vibrator includes a base and a mounting bracket slidably mounted on the base. The mounting bracket is provided with a limiting plate, and a first buffer portion is provided at the bottom of the limiting plate. The mounting bracket is provided with a second buffer portion. The two ends of the separating funnel abut against the first buffer portion and the second buffer portion, respectively. The base is provided with a drive portion for driving the mounting bracket to reciprocate up and down.

[0007] In a preferred embodiment of this utility model: the drive unit includes a first mounting seat fixedly installed on the inner wall of the bottom of the base and a second mounting seat fixedly installed on the inner wall of the top of the base. A first shock-absorbing pad is fixedly installed on the first mounting seat, and a motor is fixedly installed on the first shock-absorbing pad. A second shock-absorbing pad is fixedly installed on the second mounting seat, and the bottom of the second shock-absorbing pad is fixed to the top of the motor. An eccentric wheel is fixedly installed at the output end of the motor, and a crank hinged to the bottom of the mounting frame is rotatably installed on the eccentric wheel.

[0008] In a preferred embodiment of this utility model: an installation column is fixedly installed on the mounting bracket, an installation tube is fixedly installed on the installation column, a limiting plate is slidably installed on the installation tube, and a fixing column is also included. The two ends of the fixing column are respectively provided with a first thread and a second thread. The end of the fixing column with the second thread is threadedly connected to the installation tube. A nut is rotatably installed on the limiting plate. When the separating funnel is fixed, the nut is threadedly connected to the installation tube. When the separating funnel is replaced, the nut is fixed to the first thread.

[0009] In a preferred embodiment of this utility model: both the first buffer part and the second buffer part include damping cylinders and springs. The two sets of damping cylinders are respectively fixedly installed on the mounting frame and the limiting plate. The two sets of springs are respectively sleeved on the two sets of damping cylinders. The output ends of the two sets of damping cylinders are respectively fixedly installed with a first limiting seat and a second limiting seat. The two ends of one set of springs abut against the first limiting seat and the limiting plate, respectively. The two ends of the other set of springs abut against the second limiting seat and the mounting frame, respectively. A first buffer pad is fixedly installed on the first limiting seat, and a second buffer pad is fixedly installed on the second limiting seat. The first buffer pad and the second buffer pad abut against the separating funnel.

[0010] In a preferred embodiment of this utility model: both sets of damping air cylinders include piston cylinders, the two sets of piston cylinders are fixedly connected to the limiting plate and the mounting bracket respectively, a piston plate is slidably installed inside the piston cylinder, a piston rod is fixedly installed on the piston plate, and the two piston rods are fixedly connected to the first limiting seat and the second limiting seat respectively.

[0011] As a preferred embodiment of this utility model: both the inlet and outlet ends of the piston cylinder are provided with one-way valves, an exhaust pipe assembly is fixedly installed at the outlet end of the piston cylinder, a filter chamber is provided inside the installation pipe, a filter layer is provided inside the filter chamber, a vent groove communicating with the filter chamber is provided on the second thread, and a limit tube is fixedly installed at the inlet end of the piston cylinder, the limit tube being a metal rigid tube.

[0012] In a preferred embodiment of this utility model, a sealing ring is fixedly installed on the top of the base, and a transparent cover is detachably installed on the sealing ring, the transparent cover being snapped into and sealed with the sealing ring.

[0013] As a preferred embodiment of this utility model: the transparent cover is made of double-layer sound-insulating transparent material, the inner layer is an acrylic plate and the outer layer is sound-insulating glass, with a 5-10mm air buffer layer reserved between the two layers, the sealing ring is a rubber ring, and the transparent cover and the sealing ring are interference-fitted.

[0014] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In this utility model, the damping air cylinder and spring structure buffer the separating funnel, reduce collision noise, and stabilize the separating funnel, solving the problems of noise generated by the collision between the separating funnel and the mounting frame and limiting plate during vibration, as well as the problem of unstable fixation; In addition, the spring can absorb part of the impact energy through elastic deformation, and the damping air cylinder generates damping force through the sliding of the piston plate in the piston cylinder, further buffering the vibration caused by liquid impact, thereby reducing the wear and noise of the separating funnel caused by impact, solving the problem of easy damage and increased noise of the separating funnel caused by liquid impact; While buffering vibration, the damping air cylinder can also cooperate with the filter layer to drive the air inside the transparent cover to circulate and filter, purifying harmful gases, solving the problem of harmful gas accumulation in the sealed space, which may cause harm when the transparent cover is opened.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] In the attached diagram:

[0017] Figure 1 Schematic diagram of a low-noise vertical multi-purpose vibrator proposed in this utility model Figure 1 ;

[0018] Figure 2 Schematic diagram of a low-noise vertical multi-purpose vibrator proposed in this utility model Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the fixing column of a low-noise vertical multi-purpose vibrator proposed in this utility model;

[0020] Figure 4 for Figure 3 Schematic diagram of the structure at point A;

[0021] Figure 5 This is a front sectional view of a low-noise vertical multi-purpose vibrator proposed in this utility model;

[0022] Figure 6 for Figure 5 A schematic diagram of the structure at point B.

[0023] In the diagram: 1. Base; 2. Mounting bracket; 21. Mounting post; 22. Mounting tube; 23. Filter chamber; 3. Limiting plate; 31. Nut; 4. First buffer part; 41. Piston cylinder; 42. Piston plate; 43. Piston rod; 44. Spring; 45. Exhaust pipe assembly; 46. Limiting tube; 5. Second buffer part; 6. First limiting seat; 61. First buffer pad; 62. Second limiting seat; 63. Second buffer pad; 7. Fixing post; 71. First thread; 72. Second thread; 73. Vent groove; 8. Transparent cover; 81. Sealing ring; 9. First mounting seat; 91. Second mounting seat; 92. First shock absorber; 93. Second shock absorber; 94. Motor; 95. Eccentric wheel; 96. Crank. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] Example: Refer to Figures 1-6 A low-noise vertical multi-purpose vibrator includes a base 1 and a mounting frame 2 slidably mounted on the base 1. A limiting plate 3 is provided on the mounting frame 2, a first buffer part 4 is provided at the bottom of the limiting plate 3, and a second buffer part 5 is provided on the mounting frame 2. The two ends of the separating funnel abut against the first buffer part 4 and the second buffer part 5 respectively. A drive part for driving the mounting frame 2 to reciprocate up and down is provided inside the base 1.

[0026] Reference Figure 1 A sealing ring 81 is fixedly installed on the top of the base 1. A transparent cover 8 is detachably installed on the sealing ring 81. The transparent cover 8 is snapped into the sealing ring 81 for sealing.

[0027] When in use, the separatory funnel is placed in a sealed space formed by the transparent cover 8 and the sealing ring 81 to prevent harmful gases from spreading into the air. At the same time, the transparent cover 8 is a soundproof cover to further reduce the noise generated by the vibration of the liquid inside the separatory funnel from spreading outward. Specifically, the transparent cover 8 can be made of double-layer soundproof transparent material, such as a high-strength acrylic plate as the inner layer and a soundproof glass as the outer layer, with a 5-10mm air buffer layer reserved between the two layers. In order to facilitate quick handling of the separatory funnel, the sealing ring 81 is a rubber ring, and the transparent cover 8 and the sealing ring 81 are interference-fitted.

[0028] Reference Figure 5The drive unit includes a first mounting base 9 fixedly mounted on the inner wall of the bottom of the base 1 and a second mounting base 91 fixedly mounted on the inner wall of the top of the base 1. A first shock-absorbing pad 92 is fixedly mounted on the first mounting base 9, and a motor 94 is fixedly mounted on the first shock-absorbing pad 92. A second shock-absorbing pad 93 is fixedly mounted on the second mounting base 91, and the bottom of the second shock-absorbing pad 93 is fixed to the top of the motor 94. An eccentric wheel 95 is fixedly mounted on the output end of the motor 94, and a crank 96 hinged to the bottom of the mounting bracket 2 is rotatably mounted on the eccentric wheel 95.

[0029] When in use, start the motor 94, which drives the eccentric wheel 95 to rotate. The eccentric wheel 95 drives the mounting frame 2 to move up and down repeatedly via the crank 96, thereby causing the separating funnel mounted on the mounting frame 2 to vibrate vertically back and forth.

[0030] The first damping pad 92 and the second damping pad 93 are preferably made of damping rubber. When in use, the first damping pad 92 and the second damping pad 93 work together to limit the position of the motor 94 and absorb the vibration generated when the motor 94 is working, thereby further reducing the noise generated by the vibrator when oscillating the separating funnel.

[0031] Reference Figure 6 Both the first buffer section 4 and the second buffer section 5 include damping cylinders and springs 44. The two sets of damping cylinders are fixedly installed on the mounting bracket 2 and the limiting plate 3, respectively. The two sets of springs 44 are respectively sleeved on the two sets of damping cylinders, and the output ends of the two sets of damping cylinders are respectively fixedly installed with a first limiting seat 6 and a second limiting seat 62. The two ends of one set of springs 44 abut against the first limiting seat 6 and the limiting plate 3, respectively, and the two ends of the other set of springs 44 abut against the second limiting seat 62 and the mounting bracket 2, respectively. A first buffer pad 61 is fixedly installed on the first limiting seat 6, and a second buffer pad 63 is fixedly installed on the second limiting seat 62. The first buffer pad 61 and the second buffer pad 63 abut against the separating funnel.

[0032] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 Mounting bracket 2 is fixedly mounted with mounting column 21, and mounting tube 22 is fixedly mounted on mounting column 21. Limiting plate 3 is slidably mounted on mounting tube 22. It also includes fixing column 7. The two ends of fixing column 7 are respectively provided with first thread 71 and second thread 72. The end of fixing column 7 with second thread 72 is threadedly connected to mounting tube 22. Limiting plate 3 is rotatably mounted with nut 31. When the separating funnel is fixed, nut 31 is threadedly connected to mounting tube 22. When the separating funnel is replaced, nut 31 is fixed with first thread 71.

[0033] The first buffer pad 61 and the second buffer pad 63 are preferably made of chemically resistant silicone.

[0034] Reference Figure 6 Both sets of damping cylinders include piston cylinders 41. The two sets of piston cylinders 41 are fixedly connected to the limiting plate 3 and the mounting bracket 2, respectively. A piston plate 42 is slidably installed inside the piston cylinder 41. A piston rod 43 is fixedly installed on the piston plate 42. The two piston rods 43 are fixedly connected to the first limiting seat 6 and the second limiting seat 62, respectively.

[0035] The piston cylinder 41 is equipped with a one-way valve at both the inlet and outlet ends. An exhaust pipe assembly 45 is fixedly installed at the outlet end of the piston cylinder 41. A filter chamber 23 is provided inside the mounting pipe 22. A filter layer (preferably an adsorbent such as activated carbon) is provided inside the filter chamber 23. A ventilation groove 73 communicating with the filter chamber 23 is provided on the second thread 72. A limit pipe 46 is fixedly installed at the inlet end of the piston cylinder 41. The limit pipe 46 is a metal rigid pipe.

[0036] When using this vibrator:

[0037] After confirming that the filter layer (such as activated carbon) in the filter chamber 23 is intact and effective, check whether the one-way valve (inlet end and outlet end) of the piston cylinder 41 is working properly; check whether the first shock-absorbing pad 92 and the second shock-absorbing pad 93 are intact, and check whether the wiring of the motor 94 is normal; after confirming that the transparent cover 8 and the sealing ring 81 (rubber ring) are undamaged, screw the nut 31 on the limiting plate 3 onto the first thread 71 of the fixing column 7 (in the "replacement state"), leaving space for placing the separating funnel, and then place the separating funnel between the mounting bracket 2 and the limiting plate 3, loosen the nut 31 from the first thread 71, lower the limiting plate 3 to the appropriate position, press the limiting plate 3 and fix the nut 31 onto the mounting tube 22, so that the two ends of the separating funnel abut against the first buffer pad 61 on the first buffer part 4 and the second buffer pad 63 on the second buffer part 5 respectively, and pre-tighten the two sets of springs 44.

[0038] After the separatory funnel is fixed, the transparent cover 8 is placed on the sealing ring 81. The interference fit between the transparent cover 8 and the rubber sealing ring 81 achieves a snap-fit ​​seal, keeping the separatory funnel in a sealed space and preventing the leakage of harmful gases during oscillation. At the same time, the double-layer sound insulation structure of the transparent cover 8 (inner acrylic layer, outer soundproof glass + air buffer layer) begins to play a sound insulation role.

[0039] Then start the motor 94. The output end of the motor 94 drives the eccentric wheel 95 to rotate, and drives the mounting frame 2 to reciprocate up and down through the crank 96. The separating funnel vibrates vertically back and forth with the mounting frame 2.

[0040] The motor 94 is stably mounted by the first damping pad 92 and the second damping pad 93 (dampening rubber) on the first mounting base 9 and the second mounting base 91, thereby reducing its own vibration transmission.

[0041] During vibration, the piston plate 42 of the damping cylinder slides inside the piston cylinder 41. The air inlet end steadily draws in the air inside the transparent cover 8 through the limiting tube 46 (metal rigid tube). The air outlet end discharges the gas into the filter chamber 23 through the exhaust pipe assembly 45 via the one-way valve. After being adsorbed and purified by the filter layer (such as activated carbon, molecular sieve, or other materials suitable for the adsorption of harmful gases in the laboratory), the gas is discharged back into the interior of the transparent cover 8, thereby circulating and filtering the air inside the transparent cover 8.

[0042] After vibration is complete, turn off motor 94; open transparent cover 8, screw nut 31 back onto first thread 71 from mounting tube 22 to loosen limit plate 3, and then take out separatory funnel; replace filter layer in filter chamber 23 regularly and clean all parts (such as buffer pad, transparent cover 8, etc.).

[0043] In summary, the transparent cover 8 and the sealing ring 81 form a sealed space, which can effectively prevent harmful gases from spreading into the air. While solving the problem of harmful gas leakage in the separating funnel during the oscillation process, it can also reduce the noise generated when the liquid impacts the separating funnel during the oscillation process.

[0044] The first damping pad 92 and the second damping pad 93 work together to limit the position of the motor 94 while absorbing the vibration of the motor 94 during operation, reducing the noise of the motor 94 during operation, and solving the problem that the vibration of the motor 94 during operation causes the overall noise of the vibrator to be too large.

[0045] The damping air cylinder and spring 44, among other structures, buffer the separating funnel, reducing collision noise and stabilizing it. This solves the problems of noise and instability caused by the separating funnel colliding with the mounting bracket 2 and the limiting plate 3 during vibration. Furthermore, the spring 44 absorbs some impact energy through elastic deformation, while the damping air cylinder generates damping force through the sliding of the piston plate 42 within the piston cylinder 41, further buffering the vibration caused by liquid impact. This reduces wear and noise caused by impact, solving the problems of easy damage and increased noise caused by liquid impact. In addition to buffering vibration, the damping air cylinder can also work with the filter layer to circulate and filter the air inside the transparent cover 8, purifying harmful gases and preventing the accumulation of harmful gases in the sealed space, which could cause harm when the transparent cover 8 is opened.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A vertical multi-purpose vibrator with low noise, comprising a base (1) and a mounting frame (2) slidingly mounted on the base (1), characterized in that, The mounting frame (2) is provided with a limiting plate (3), the bottom of the limiting plate (3) is provided with a first buffer part (4), the mounting frame (2) is provided with a second buffer part (5), the two ends of the separating funnel abut against the first buffer part (4) and the second buffer part (5) respectively, and the base (1) is provided with a driving part for driving the mounting frame (2) to move back and forth.

2. A compact vertical multi-purpose vibrator according to claim 1, characterized in that The drive unit includes a first mounting seat (9) fixedly mounted on the inner wall of the bottom of the base (1) and a second mounting seat (91) fixedly mounted on the inner wall of the top of the base (1). A first damping pad (92) is fixedly mounted on the first mounting seat (9), and a motor (94) is fixedly mounted on the first damping pad (92). A second damping pad (93) is fixedly mounted on the second mounting seat (91), and the bottom of the second damping pad (93) is fixed to the top of the motor (94). An eccentric wheel (95) is fixedly mounted on the output end of the motor (94), and a crank (96) hinged to the bottom of the mounting bracket (2) is rotatably mounted on the eccentric wheel (95).

3. A low noise vertical multi-use vibrator according to claim 1, wherein The mounting bracket (2) is fixedly mounted with a mounting column (21), and a mounting tube (22) is fixedly mounted on the mounting column (21). The limiting plate (3) is slidably mounted on the mounting tube (22). The mounting bracket (3) also includes a fixing column (7). The two ends of the fixing column (7) are respectively provided with a first thread (71) and a second thread (72). The end of the fixing column (7) with the second thread (72) is threadedly connected to the mounting tube (22). A nut (31) is rotatably mounted on the limiting plate (3). When the separating funnel is fixed, the nut (31) is threadedly connected to the mounting tube (22). When the separating funnel is replaced, the nut (31) is fixed to the first thread (71).

4. A low noise vertical multi-use vibrator according to claim 3, wherein Both the first buffer section (4) and the second buffer section (5) include damping cylinders and springs (44). The two sets of damping cylinders are fixedly installed on the mounting frame (2) and the limiting plate (3), respectively. The two sets of springs (44) are respectively sleeved on the two sets of damping cylinders. The output ends of the two sets of damping cylinders are respectively fixedly installed with a first limiting seat (6) and a second limiting seat (62). The two ends of one set of springs (44) abut against the first limiting seat (6) and the limiting plate (3), respectively. The two ends of the other set of springs (44) abut against the second limiting seat (62) and the mounting frame (2), respectively. A first buffer pad (61) is fixedly installed on the first limiting seat (6), and a second buffer pad (63) is fixedly installed on the second limiting seat (62). The first buffer pad (61) and the second buffer pad (63) abut against the separating funnel.

5. A low noise vertical multi-use vibrator according to claim 4, wherein Both sets of damping cylinders include piston cylinders (41). The two sets of piston cylinders (41) are fixedly connected to the limiting plate (3) and the mounting bracket (2) respectively. A piston plate (42) is slidably installed inside the piston cylinder (41). A piston rod (43) is fixedly installed on the piston plate (42). The two piston rods (43) are fixedly connected to the first limiting seat (6) and the second limiting seat (62) respectively.

6. A low-noise vertical multi-purpose vibrator according to claim 5, characterized in that, The piston cylinder (41) is equipped with a one-way valve at both the inlet and outlet ends. An exhaust pipe assembly (45) is fixedly installed at the outlet end of the piston cylinder (41). A filter chamber (23) is provided inside the mounting pipe (22). A filter layer is provided inside the filter chamber (23). A ventilation groove (73) communicating with the filter chamber (23) is provided on the second thread (72). A limit tube (46) is fixedly installed at the inlet end of the piston cylinder (41). The limit tube (46) is a metal rigid tube.

7. A low-noise vertical multi-purpose vibrator according to claim 1, characterized in that, A sealing ring (81) is fixedly installed on the top of the base (1), and a transparent cover (8) is detachably installed on the sealing ring (81). The transparent cover (8) and the sealing ring (81) are snapped together and sealed.

8. A low-noise vertical multi-purpose vibrator according to claim 7, characterized in that, The transparent cover (8) is made of double-layer soundproof transparent material, with an inner layer of acrylic board and an outer layer of soundproof glass. An air buffer layer of 5-10mm is reserved between the two layers. The sealing ring (81) is a rubber ring, and the transparent cover (8) and the sealing ring (81) are interference-fitted.

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