Laboratory vacuum pump

Abstract

The utility model discloses a laboratory vacuum pump, and particularly relates to the technical field of laboratory equipment, the laboratory vacuum pump comprises a vacuum pump body, the bottom end of the vacuum pump body is fixedly connected with a vacuum pump connecting cushion block, the side edge of the vacuum pump connecting cushion block is provided with a sliding groove, and the vacuum pump body is sleeved with a noise reduction cover. The inner wall of the noise reduction cover is fixedly connected with a sliding block, the sliding block is arranged in the sliding groove in a sliding state, the bottom end of the vacuum pump connecting cushion block is fixedly connected with a vacuum pump supporting cushion block, and the bottom end of the vacuum pump supporting cushion block is fixedly connected with a connecting block base; the problems that a laboratory vacuum pump is large in noise, strong in vibration and inconvenient to operate in the operation process are solved. The noise reduction cover is arranged, and the sliding connection structure of the sliding groove and the sliding block is utilized, so that the noise reduction cover can stably cover the vacuum pump body, and noise is effectively isolated.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory equipment, and more specifically, the utility model relates to a laboratory vacuum pump. Background Art

[0002] Laboratory vacuum pumps are widely used in various experimental operations to provide a stable low-pressure environment. However, traditional laboratory vacuum pumps have problems such as high noise and strong vibration during operation, which not only affect the quietness of the laboratory environment but also may have an adverse impact on precision experiments. Most existing vacuum pumps adopt internal structure improvements to reduce noise and vibration, but these methods usually have a high cost and are difficult to implement without changing the internal structure of the equipment. In addition, the installation and maintenance operations of existing vacuum pumps are relatively complex, especially in scenarios where frequent disassembly and assembly are required, resulting in a poor user experience.

[0003] Facing this technical status quo, there is an urgent need for a device that can effectively reduce noise, reduce vibration, and provide convenient operation. Therefore, in view of the above problems, a laboratory vacuum pump is specifically proposed. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a laboratory vacuum pump, which solves the problems of high noise, strong vibration, and inconvenient operation of the laboratory vacuum pump during operation. By setting a noise reduction cover and using the sliding connection structure of the chute and the slider, the noise reduction cover can be firmly covered on the vacuum pump body to effectively isolate noise. At the same time, a glass fiber cotton sound-absorbing pad is adopted to significantly reduce the interference of medium and low-frequency noise on the experimental environment. The honeycomb-shaped hollow groove not only reduces the overall weight of the vacuum pump but also disperses the vibration of the equipment, further enhancing the shock absorption effect. In addition, the auxiliary ball handle made of rubber improves the disassembly and assembly convenience and operation safety of the equipment, and improves the experience of experimental personnel during use.

[0005] To achieve the above object, the utility model provides the following technical solution: A laboratory vacuum pump, including a vacuum pump body, a vacuum pump connection pad is fixedly connected to the bottom end of the vacuum pump body, a chute is opened on the side of the vacuum pump connection pad, a noise reduction cover is sleeved outside the vacuum pump body, a slider is fixedly connected to the inner wall of the noise reduction cover, the slider is arranged in a sliding state inside the chute, a vacuum pump support pad is fixedly connected to the bottom end of the vacuum pump connection pad, and a connection block base is fixedly connected to the bottom end of the vacuum pump support pad.

[0006] In a preferred embodiment, the noise reduction cover is arranged in an arc shape to surround the outside of the vacuum pump body, the noise reduction cover is made of polypropylene material, a sound-absorbing pad is adhesively arranged on the inner wall of the noise reduction cover, the sound-absorbing pads are arranged symmetrically on both sides of the noise reduction cover, and the sound-absorbing pad is made of glass fiber cotton material.

[0007] In a preferred embodiment, a plurality of hollow grooves are formed on the side of the vacuum pump support pad, an auxiliary plate is fixedly connected to the bottom end of the noise reduction cover, a limiting rod is slidably connected inside the auxiliary plate, and the limiting rod is inserted into the hollow groove.

[0008] In a preferred embodiment, a spring is wound around the outer portion of the limiting rod, an auxiliary block is fixedly connected to the outer end of the limiting rod, one end of the spring is fixedly connected to the auxiliary plate, and the other end of the spring is fixedly connected to the auxiliary block.

[0009] In a preferred embodiment, the hollow groove and the limiting rod are shaped like a "honeycomb", and the outer wall of the limiting rod fits closely with the inner wall of the hollow groove.

[0010] In a preferred embodiment, an auxiliary ball handle is fixedly connected to the outer end of the auxiliary block, and the auxiliary ball handle is made of rubber.

[0011] The technical effects and advantages of the present utility model:

[0012] Through the mutual cooperation of the vacuum pump connection pad, the chute, the noise reduction cover, the slider, the sound absorption pad, the vacuum pump support pad, the hollow groove, the auxiliary plate, the limiting rod, the spring, the auxiliary ball handle, the auxiliary block and the connection block base, the noise reduction effect and operation convenience of the laboratory vacuum pump are improved. The sliding cooperation of the chute and the slider enables the noise reduction cover to be smoothly closed, and through the insertion and fixation of the limiting rod and the hollow groove, the stable positioning of the noise reduction cover is realized, preventing displacement during operation. The noise reduction cover is made of polypropylene material, which is light and has a sound insulation effect. The glass fiber cotton sound absorption pad inside effectively absorbs medium and low frequency noise, significantly improving the experimental environment. The honeycomb-shaped hollow groove of the vacuum pump support pad not only reduces the weight of the equipment, but also disperses the vibration, enhancing the shock absorption performance of the equipment. The auxiliary ball handle is made of rubber material, providing an anti-slip effect, and the operation is simple and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure state of the vacuum pump body of the present utility model.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure active state of the noise reduction cover of the present utility model.

[0015] Figure 3 For the present utility model Figure 2 The enlarged view of the structure at A.

[0016] Figure 4 It is a schematic diagram of the plane sectional structure state of the noise reduction cover of the present utility model.

[0017] Figure 5 For the present utility model Figure 4Enlarged view of the structure at position B.

[0018] Wherein: 1. Vacuum pump body; 2. Vacuum pump connecting cushion block; 3. Chute; 4. Noise reduction cover; 5. Slide block; 6. Sound absorption pad; 7. Vacuum pump support cushion block; 8. Hollow groove; 9. Auxiliary plate; 10. Limit rod; 11. Spring; 12. Auxiliary ball handle; 13. Auxiliary block; 14. Connecting block base. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Refer to the attached drawings of the specification Figures 1-5 , a laboratory vacuum pump, including a vacuum pump body 1, the bottom end of the vacuum pump body 1 is fixedly connected with a vacuum pump connecting cushion block 2, a chute 3 is opened on the side of the vacuum pump connecting cushion block 2, a noise reduction cover 4 is sleeved outside the vacuum pump body 1, the inner wall of the noise reduction cover 4 is fixedly connected with a slide block 5, and the slide block 5 is arranged in a sliding state inside the chute 3. The bottom end of the vacuum pump connecting cushion block 2 is fixedly connected with a vacuum pump support cushion block 7, and the bottom end of the vacuum pump support cushion block 7 is fixedly connected with a connecting block base 14; through the sliding connection effect between the chute 3 and the slide block 5, during the operation of the vacuum pump body 1, the noise reduction cover 4 is covered, and after the noise reduction cover 4 covers the vacuum pump body 1, it can play a certain noise prevention effect, thereby reducing the noise during the operation of the vacuum pump body 1 and effectively improving the experimental environment.

[0021] Then, the noise reduction cover 4 is arranged in an arc shape and surrounded and sleeved outside the vacuum pump body 1. The noise reduction cover 4 is made of polypropylene material. A sound absorption pad 6 is adhesively arranged on the inner wall of the noise reduction cover 4, and the sound absorption pad 6 is arranged symmetrically on both sides of the noise reduction cover 4. The sound absorption pad 6 is made of glass fiber cotton material; the noise reduction cover 4 is arranged in this shape so that the noise reduction cover 4 can better cover the vacuum pump body 1; the noise reduction cover 4 is made of polypropylene material because the hard plastic material is light in weight, has good sound insulation effect, is easy to process, has relatively low cost, and has strong plasticity, suitable for different structural designs. It has good weather resistance and is suitable for long-term use; glass fiber cotton is an efficient sound absorption material, arranged on both sides inside the noise reduction cover 4, which can effectively improve the noise reduction effect of the noise reduction cover 4.

[0022] Then, an array of hollow grooves 8 are opened on the side of the vacuum pump support pad 7, and the bottom end of the noise reduction cover 4 is fixedly connected to an auxiliary plate 9. The auxiliary plate 9 is internally slidably connected to a limit rod 10, and the limit rod 10 is inserted into the hollow groove 8; through the sliding effect of the slide groove 3 and the slider 5, the noise reduction cover 4 is covered on the vacuum pump body 1, and the limit rod 10 is used to fix the insertion of the hollow groove 8, thereby achieving the fixing effect of the noise reduction cover 4.

[0023] Next, a spring 11 is wrapped around the outside of the limiting rod 10, and the outer end of the limiting rod 10 is fixedly connected to the auxiliary block 13. One end of the spring 11 is fixedly connected to the auxiliary plate 9, and the other end of the spring 11 is fixedly connected to the auxiliary block 13. Through this structure, the elastic properties of the spring 11 are utilized to drive the limiting rod 10 to insert into the hollow groove 8 to ensure the normal operation of the equipment.

[0024] At this time, the shapes of the hollow groove 8 and the limiting rod 10 are set to be "honeycomb-shaped", and the outer wall of the limiting rod 10 fits the inner wall of the hollow groove 8. Since the hollow groove 8 adopts a "honeycomb-shaped" setting, the vacuum pump support pad 7 can reduce the weight and improve the vibration dispersion effect. The limiting rod 10 is fitly inserted into the hollow groove 8, so that the stability of the fixing effect is improved to a certain extent.

[0025] It should be noted that the outer end of the auxiliary block 13 is fixedly connected to an auxiliary ball handle 12, and the material of the auxiliary ball handle 12 is set to be rubber; if the noise reduction cover 4 needs to be disassembled, the auxiliary ball handle 12 can be pulled to drive the limit rod 10 out of the hollow groove 8, and then the slider 5 can be used to slide out of the slide groove 3, so that the installation and disassembly operations of the noise reduction cover 4 are both convenient to a certain extent. The use of rubber material for the auxiliary ball handle 12 also makes the outer wall of the auxiliary ball handle 12 have greater friction, thereby preventing the operator from slipping when pulling the auxiliary ball handle 12.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0027] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0028] Finally: The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A laboratory vacuum pump, comprising a vacuum pump body (1), characterized in that: The bottom end of the vacuum pump body (1) is fixedly connected with a vacuum pump connecting cushion block (2). A chute (3) is arranged on the side of the vacuum pump connecting cushion block (2). A noise reduction cover (4) is sleeved outside the vacuum pump body (1). A slider (5) is fixedly connected to the inner wall of the noise reduction cover (4). The slider (5) is arranged in a sliding state inside the chute (3). The bottom end of the vacuum pump connecting cushion block (2) is fixedly connected with a vacuum pump supporting cushion block (7). The bottom end of the vacuum pump supporting cushion block (7) is fixedly connected with a connecting block base (14).

2. The laboratory vacuum pump according to claim 1, wherein: The noise reduction cover (4) is arranged in an arc shape to surround and sleeve the outside of the vacuum pump body (1). The noise reduction cover (4) is made of polypropylene material. A sound absorption pad (6) is adhesively arranged on the inner wall of the noise reduction cover (4). The sound absorption pads (6) are arranged symmetrically on both sides of the noise reduction cover (4). The sound absorption pad (6) is made of glass fiber cotton material.

3. A laboratory vacuum pump according to claim 1, characterized in that: A plurality of sets of hollow slots (8) are arranged on the side of the vacuum pump supporting cushion block (7). An auxiliary plate (9) is fixedly connected to the bottom end of the noise reduction cover (4). A limiting rod (10) is slidably connected inside the auxiliary plate (9). The limiting rod (10) is inserted into the hollow slot (8).

4. A laboratory vacuum pump according to claim 3, characterized in that: A spring (11) is wound around the outside of the limiting rod (10). An auxiliary block (13) is fixedly connected to the outer end of the limiting rod (10). One end of the spring (11) is fixedly connected to the auxiliary plate (9), and the other end of the spring (11) is fixedly connected to the auxiliary block (13).

5. The laboratory vacuum pump according to claim 3, wherein: The shapes of the hollow slot (8) and the limiting rod (10) are set to be "honeycomb-shaped", and the outer wall of the limiting rod (10) fits with the inner wall of the hollow slot (8).

6. The laboratory vacuum pump according to claim 4, characterized in that: An auxiliary ball handle (12) is fixedly connected to the outer end of the auxiliary block (13). The material of the auxiliary ball handle (12) is set to be rubber material.

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