A shock-absorbing base for a vacuum pump

Abstract

The utility model relates to the field of shock absorption of vacuum pumps, and discloses a shock absorption base for vacuum pumps, including a base, a bottom plate fixed on the top of the base, a first sleeve fixed on the top of the bottom plate, a first piston slidably provided on the inner side wall of the first sleeve, an air bag fixed on the inner side wall of the first sleeve, and the air bag is located below the first piston, a first connecting rod fixed on the top of the first piston, and one end of the first connecting rod passes through the top of the first sleeve, a top plate fixed on the end of the first connecting rod, a protective cover is provided on the top of the top plate, and a collar is sleeved on the side wall of the first sleeve. The utility model performs two buffering treatments on the vibration generated by the vacuum pump during operation through the first buffer mechanism and the second buffer mechanism, thereby improving the shock absorption effect and extending the service life of the vacuum pump, and at the same time, the air inside the protective cover is extracted through two exhaust mechanisms, so that a vacuum state is gradually formed inside the protective cover, noise is prevented from being transmitted, and noise pollution caused to the outside world is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pump shock absorption, in particular to a shock absorption base for a vacuum pump. Background Art

[0002] A vacuum pump is a device used to extract gas from a container to form a vacuum environment. It extracts gas from the container through mechanical, physical or chemical methods to reduce the pressure in the container to the required vacuum level. The vacuum pump will vibrate during use, so a shock-absorbing base is needed for the vacuum pump.

[0003] Traditional shock-absorbing bases often use simple shock-absorbing materials, such as rubber gaskets, which have limited shock-absorbing effects. These materials may not be able to effectively reduce the vibration generated by the vacuum pump, which may cause damage to the vacuum pump, increased wear and loose parts, and reduce the service life of the vacuum pump. In addition, when the vacuum pump is working, it will generate certain noise, which may exceed the environmental noise standard, causing noise pollution to surrounding residents, employees or other equipment, and interfering with their normal work and life. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a shock-absorbing base for a vacuum pump.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A shock-absorbing base for a vacuum pump comprises a base, a bottom plate is fixed on the top of the base, a first sleeve is fixed on the top of the bottom plate, a first piston is slidably provided on the inner side wall of the first sleeve, an air bag is fixed on the inner side wall of the first sleeve, and the air bag is located below the first piston, a first connecting rod is fixed on the top of the first piston, and one end of the first connecting rod passes through the top of the first sleeve, a top plate is fixed on the end of the first connecting rod, a protective cover is arranged on the top of the top plate, a collar is sleeved on the side wall of the first sleeve, a first buffer mechanism for buffering the top plate is arranged at both symmetrical ends of the collar for buffering the top plate, a second buffer mechanism for buffering the top plate is arranged at both symmetrical sides of the top of the bottom plate, and an exhaust mechanism for exhausting air from the protective cover is arranged at both symmetrical sides of the top of the top plate. During use, the vibration generated by the vacuum pump during operation is buffered twice by the first buffer mechanism and the second buffer mechanism, thereby improving the shock-absorbing effect and extending the service life of the vacuum pump. At the same time, the air inside the protective cover is extracted by the two exhaust mechanisms, so that a vacuum state is gradually formed inside the protective cover, noise is prevented from being transmitted, and noise pollution to the outside is reduced.

[0007] As a further scheme of the utility model, the first buffer mechanism includes a connecting seat, the connecting seat is fixed to the outer wall of the sleeve, the side wall of the connecting seat is provided with a through groove, the inner wall of the through groove is fixed with a sliding rod, the side wall of the sliding rod is slidably connected with a sliding block, the side wall of the sliding rod is sleeved with a buffer spring, and the two ends of the buffer spring are respectively fixed to the connecting seat and the sliding block, and the symmetrical two side walls of the sliding block are fixed with a connecting column, and the two side walls of the connecting column are rotatably connected with a connecting plate, wherein one end of the two connecting plates are fixed to the bottom plate, and one end of the other two connecting plates are fixed to the top plate. When the vacuum pump vibrates during use, the top plate will move downward, so that the angle between each two connecting plates in the four groups will gradually become smaller. At this time, the two sliding blocks move away from each other along the directions of the two sliding rods, respectively squeeze the two buffer springs, so that the two buffer springs are in a compressed state, and under the reaction of the two compressed buffer springs, the top plate has a tendency to move upward, preventing the top plate from moving downward, thereby realizing the initial buffering of the vacuum pump.

[0008] As a further scheme of the utility model, the second buffer mechanism includes a second sleeve, which is fixed at the middle of one side of the top of the bottom plate, and a second piston is slidably arranged on the inner wall of the second sleeve, and a second connecting rod is fixed on the top of the second piston, and one end of the second connecting rod passes through the top of the second sleeve, and a first connecting tube is fixed on the bottom of the side wall of the second sleeve, and one end of the first connecting tube is connected to the airbag. When the top plate descends, it drives the two second connecting rods to move downward, and then drives the two second pistons to move downward, so that the air inside the two second sleeves enters the airbag, causing the airbag to expand and deform, and the first piston is pushed to move upward along the inner wall of the first sleeve through the airbag, and then the top plate is driven upward through the first connecting rod to achieve secondary buffering of the vacuum pump.

[0009] As a further scheme of the present utility model, the air extraction mechanism includes a third sleeve, the third sleeve is fixed to one side of the top of the top plate, a third piston is slidably provided on the inner side wall of the third sleeve, a third connecting rod is fixed to the top of the third piston, one end of the third connecting rod passes through the top of the third sleeve, a second connecting pipe is fixed to the bottom of the third sleeve, and one end of the second connecting pipe is connected to the protective cover, a check valve is provided on the side wall of the second connecting pipe, a fixing plate is fixed to the top of the third connecting rod, a column is fixed to one side of the top of the base, and the fixing plate and the column are fixed, when the top plate moves downward, the two third sleeves are driven to move downward at the same time, and the two fixing plates and the two columns are cooperated to keep the two third pistons stationary, and the air in the protective cover is extracted through the action of the two second connecting pipes, so that the protective cover gradually becomes a vacuum state, thereby preventing the noise generated when the vacuum pump is working from being transmitted to the outside world, and reducing the noise pollution caused to the outside world.

[0010] The beneficial effects of the utility model are:

[0011] 1. During the use of the device, the vacuum pump is fixed on the top of the top plate. The vacuum pump generates vibration when working, which drives the top plate to move downward. The first buffer mechanism and the second buffer mechanism are used to perform two buffering treatments on the top plate, thereby improving the shock absorption effect and extending the service life of the vacuum pump.

[0012] 2. While the top plate moves downward, the air inside the protective cover is extracted by cooperating with two exhaust mechanisms, so that a vacuum state is gradually formed inside the protective cover, preventing noise from being transmitted and reducing noise pollution to the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a shock-absorbing base for a vacuum pump proposed by the utility model;

[0014] Figure 2 A schematic diagram of a base, a connecting seat and a connecting plate of a shock-absorbing base for a vacuum pump proposed by the utility model;

[0015] Figure 3 This is a cross-sectional schematic diagram of a connecting seat for a shock-absorbing base of a vacuum pump proposed by the utility model;

[0016] Figure 4 This is a cross-sectional schematic diagram of a second sleeve of a shock-absorbing base for a vacuum pump proposed by the utility model;

[0017] Figure 5 The utility model is a schematic cross-sectional view of a third sleeve of a shock-absorbing base for a vacuum pump.

[0018] In the figure: 1. base; 2. bottom plate; 3. top plate; 4. protective cover; 5. connecting seat; 6. first sleeve; 7. second sleeve; 8. connecting plate; 9. third sleeve; 10. through groove; 11. collar; 12. first connecting rod; 13. slider; 14. connecting column; 15. slide rod; 16. buffer spring; 17. airbag; 18. second connecting rod; 19. first piston; 20. second piston; 21. first connecting pipe; 22. third piston; 23. second connecting pipe; 24. fixing plate; 25. check valve; 26. column; 27. third connecting rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 5A shock-absorbing base for a vacuum pump includes a base 1, a bottom plate 2 is fixed on the top of the base 1, a first sleeve 6 is fixed on the top of the bottom plate 2, a first piston 19 is slidably arranged on the inner wall of the first sleeve 6, an air bag 17 is fixed on the inner wall of the first sleeve 6, and the air bag 17 is located below the first piston 19, a first connecting rod 12 is fixed on the top of the first piston 19, and one end of the first connecting rod 12 passes through the top of the first sleeve 6, a top plate 3 is fixed on the end of the first connecting rod 12, a protective cover 4 is arranged on the top of the top plate 3, a collar 11 is sleeved on the side wall of the first sleeve 6, and both ends of the collar 11 are symmetrically provided with a A first buffer mechanism for buffering the top plate 3, second buffer mechanisms for buffering the top plate 3 are symmetrically provided on both sides of the top of the bottom plate 2, and exhaust mechanisms for exhausting the protective cover 4 are symmetrically provided on both sides of the top of the top plate 3. During use, the vibration generated by the vacuum pump when working is buffered twice by the first buffer mechanism and the second buffer mechanism, thereby improving the shock absorption effect and extending the service life of the vacuum pump. At the same time, the air inside the protective cover 4 is extracted through the two exhaust mechanisms, so that a vacuum state is gradually formed inside the protective cover 4, thereby preventing noise from being transmitted and reducing noise pollution to the outside world.

[0021] Reference Figure 2 and Figure 3 In a preferred embodiment, the first buffer mechanism includes a connecting seat 5, the connecting seat 5 is fixed to the outer wall of the collar 11, the side wall of the connecting seat 5 is provided with a through slot 10, the inner wall of the through slot 10 is fixed with a slide bar 15, the side wall of the slide bar 15 is slidably connected with a slider 13, the side wall of the slide bar 15 is sleeved with a buffer spring 16, and the two ends of the buffer spring 16 are respectively fixed to the connecting seat 5 and the slider 13, the two symmetrical side walls of the slider 13 are fixed with connecting columns 14, the side walls of the two connecting columns 14 are rotatably connected with connecting plates 8, wherein one end of the two connecting plates 8 is connected to the bottom plate 2 The top plate 3 is fixed, and one end of the other two connecting plates 8 are fixed to the top plate 3. When the vacuum pump vibrates during use, the top plate 3 will move downward, so that the angle between each two connecting plates 8 in the four groups will gradually become smaller. At this time, the two sliders 13 move away from each other along the directions of the two slide bars 15, respectively squeezing the two buffer springs 16, so that the two buffer springs 16 are in a compressed state. Under the reaction of the two compressed buffer springs 16, the top plate 3 has a tendency to move upward, preventing the top plate 3 from moving downward, thereby realizing the initial buffering of the vacuum pump.

[0022] Reference Figure 2 and Figure 4In a preferred embodiment, the second buffer mechanism includes a second sleeve 7, which is fixed at the middle of one side of the top of the bottom plate 2, and a second piston 20 is slidably arranged on the inner wall of the second sleeve 7, and a second connecting rod 18 is fixed on the top of the second piston 20, and one end of the second connecting rod 18 passes through the top of the second sleeve 7, and a first connecting tube 21 is fixed to the bottom of the side wall of the second sleeve 7, and one end of the first connecting tube 21 is connected to the airbag 17. When the top plate 3 descends, the two second connecting rods 18 are driven to move downward, and then the two second pistons 20 are driven to move downward, so that the air inside the two second sleeves 7 enters the airbag 17, so that the airbag 17 expands and deforms, and the first piston 19 is pushed to move upward along the inner wall of the first sleeve 6 through the airbag 17, and then the top plate 3 is driven to move upward through the first connecting rod 12, so as to realize secondary buffering of the vacuum pump.

[0023] Reference Figure 1 and Figure 5 In a preferred embodiment, the air extraction mechanism includes a third sleeve 9, which is fixed to one side of the top of the top plate 3, and a third piston 22 is slidably arranged on the inner side wall of the third sleeve 9, and a third connecting rod 27 is fixed to the top of the third piston 22, one end of the third connecting rod 27 passes through the top of the third sleeve 9, and a second connecting pipe 23 is fixed to the bottom of the third sleeve 9, and one end of the second connecting pipe 23 is connected to the protective cover 4, and a check valve 25 is arranged on the side wall of the second connecting pipe 23, and a fixing plate 24 is fixed to the top of the third connecting rod 27, and a column 26 is fixed to one side of the top of the base 1, and the fixing plate 24 and the column 26 are fixed. When the top plate 3 moves downward, the two third sleeves 9 are driven to move downward at the same time, and the two fixing plates 24 and the two columns 26 are cooperated to keep the two third pistons 22 motionless, and the air in the protective cover 4 is extracted through the action of the two second connecting pipes 23, so that the protective cover 4 gradually becomes a vacuum state, preventing the noise generated when the vacuum pump is working from being transmitted to the outside world, and reducing the noise pollution caused to the outside world.

[0024] Working principle of this embodiment: during use of this device, the vacuum pump is fixed on the top of the top plate 3, and the protective cover 4 is fixed on the top of the top plate 3, and the vacuum pump is covered inside the protective cover 4. When the vacuum pump vibrates during use, the top plate 3 will move downward, so that the angle between each two connecting plates 8 in the four groups will gradually become smaller. At this time, under the action of the connecting column 14, the two sliding blocks 13 move away from each other along the directions of the two sliding rods 15, respectively squeezing the two buffer springs 16, so that the two buffer springs 16 are in a compressed state. Under the reaction of the two compressed buffer springs 16, the top plate 3 has a tendency to move upward, preventing the top plate 3 from moving downward, thereby realizing the initial buffering of the vacuum pump. During the descending process, the top plate 3 drives the two second connecting rods 18 to move downward, thereby driving the two second pistons 20 to move downward along the inner walls of the two second sleeves 7 respectively. At this time, the two The air inside the second sleeve 7 enters the airbag 17 at the same time through the two first connecting pipes 21, causing the airbag 17 to expand and deform. At this time, the airbag 17 pushes the first piston 19 to move upward along the inner wall of the first sleeve 6, thereby driving the first connecting rod 12 to move upward. When the first connecting rod 12 moves upward, it drives the top plate 3 to move upward, thereby realizing secondary buffering of the vacuum pump, enhancing the shock absorbing effect of the vacuum pump, extending the service life of the vacuum pump, and improving the practicality of the device. When the top plate 3 moves downward, it drives the two third sleeves 9 to move downward at the same time. Under the action of the two fixed plates 24 and the two columns 26, the third piston 22 remains stationary. Through the action of the two second connecting pipes 23, the air in the protective cover 4 is extracted, so that the protective cover 4 gradually becomes a vacuum state, preventing the noise generated during the operation of the vacuum pump from being transmitted to the outside world, thereby reducing the noise pollution caused to the outside world.

[0025] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A shock-absorbing base for a vacuum pump, comprising a base (1), characterized in that: A bottom plate (2) is fixed on the top of the base (1), a first sleeve (6) is fixed on the top of the bottom plate (2), a first piston (19) is slidably provided on the inner side wall of the first sleeve (6), an air bag (17) is fixed on the inner side wall of the first sleeve (6), and the air bag (17) is located below the first piston (19), a first connecting rod (12) is fixed on the top of the first piston (19), and one end of the first connecting rod (12) passes through the top of the first sleeve (6), a top plate (3) is fixed on the end of the first connecting rod (12), a protective cover (4) is arranged on the top of the top plate (3), a collar (11) is sleeved on the side wall of the first sleeve (6), and first buffer mechanisms for buffering the top plate (3) are provided at symmetrical ends of the collar (11), second buffer mechanisms for buffering the top plate (3) are provided at symmetrical sides of the top of the bottom plate (2), and air extraction mechanisms for extracting air from the protective cover (4) are provided at symmetrical sides of the top of the top plate (3).

2. The shock-absorbing base for a vacuum pump according to claim 1, characterized in that: The first buffer mechanism comprises a connecting seat (5), the connecting seat (5) is fixed to the outer wall of the collar (11), the side wall of the connecting seat (5) is provided with a through slot (10), the inner wall of the through slot (10) is fixed with a slide bar (15), the side wall of the slide bar (15) is slidably connected with a slider (13), the side wall of the slide bar (15) is sleeved with a buffer spring (16), and the two ends of the buffer spring (16) are respectively fixed to the connecting seat (5) and the slider (13).

3. The shock-absorbing base for a vacuum pump according to claim 2, characterized in that: The symmetrical side walls of the slider (13) are both fixed with connecting columns (14), and the side walls of the two connecting columns (14) are both rotatably connected with connecting plates (8), wherein one end of the two connecting plates (8) is fixed to the bottom plate (2), and one end of the other two connecting plates (8) is fixed to the top plate (3).

4. The shock-absorbing base for a vacuum pump according to claim 1, characterized in that: The second buffer mechanism comprises a second sleeve (7), the second sleeve (7) being fixed at the middle of one side of the top of the bottom plate (2), a second piston (20) being slidably arranged on the inner wall of the second sleeve (7), a second connecting rod (18) being fixed on the top of the second piston (20), and one end of the second connecting rod (18) passing through the top of the second sleeve (7), a first connecting tube (21) being fixed on the bottom of the side wall of the second sleeve (7), and one end of the first connecting tube (21) being connected to the airbag (17).

5. The shock-absorbing base for a vacuum pump according to claim 1, characterized in that: The air extraction mechanism comprises a third sleeve (9), the third sleeve (9) being fixed to one side of the top of the top plate (3), a third piston (22) being slidably arranged on the inner wall of the third sleeve (9), a third connecting rod (27) being fixed to the top of the third piston (22), one end of the third connecting rod (27) passing through the top of the third sleeve (9), a second connecting pipe (23) being fixed to the bottom of the third sleeve (9), one end of the second connecting pipe (23) being connected to the protective cover (4), and a check valve (25) being arranged on the side wall of the second connecting pipe (23).

6. The shock-absorbing base for a vacuum pump according to claim 5, characterized in that: A fixing plate (24) is fixed on the top of the third connecting rod (27), a column (26) is fixed on one side of the top of the base (1), and the fixing plate (24) and the column (26) are fixed.

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