Vacuum pump

Abstract

The utility model provides a vacuum pump, and belongs to the field of vacuum pumps. The vacuum pump comprises a pump body, a driving piece and a plurality of driving handles, the driving piece comprises a machine body and a rotating shaft, the two ends of the rotating shaft are located outside the machine body, the machine body is located in the pump body and connected with the pump body, and the driving handles are connected with the rotating shaft and the pump body; and the other part of the driving handles is connected with the other end of the rotating shaft. The two ends of a rotating shaft of the driving piece extend out of the machine body and are connected with the pump body through driving handles correspondingly, so that when the driving piece operates, the rotating shaft rotates, and the pump body works under the combined action of the driving handles located on the two sides of the machine body. Due to the fact that loads are arranged at the two ends of the rotating shaft, rotation of the rotating shaft is more stable, vibration generated in the operation process of the driving piece is smaller, and vibration generated in the operation process of the vacuum pump can be reduced.

Description

Technical Field

[0001] The present application relates to the field of vacuum pumps, and in particular to a vacuum pump. Background Art

[0002] A vacuum pump is a device that can mechanically evacuate air from a container to reduce the internal pressure of the container.

[0003] A vacuum pump generally includes a pump body, a drive handle, and a motor. The motor body is fixed to one side of the outside of the pump body, and one end of the motor shaft extends into the inside of the pump body and is connected to the pump body through the drive handle. When the motor is working, the shaft rotates, driving the pump body to work through the drive handle.

[0004] When the vacuum pump is working, the pump body and the motor will generate a certain amount of vibration, and the vibration of the motor body will be transmitted to one side of the pump body, aggravating the vibration of the pump body. Strong vibration will not only cause loud noise, but also may cause the parts in the vacuum pump to loosen, affecting the service life of the vacuum pump. Utility Model Content

[0005] The embodiment of the present application provides a vacuum pump, which can reduce the vibration of the vacuum pump during operation. The technical solution is as follows:

[0006] An embodiment of the present application provides a vacuum pump, which includes a pump body, a driving member and multiple driving handles, the driving member includes a body and a rotating shaft, both ends of the rotating shaft are located outside the body, the body is located in the pump body and connected to the pump body, the driving handle connects the rotating shaft and the pump body, a part of the multiple driving handles are connected to one end of the rotating shaft, and another part of the multiple driving handles are connected to the other end of the rotating shaft.

[0007] In some examples, the plurality of driving handles include a plurality of first driving handles and a plurality of second driving handles, and the first driving handles and the second driving handles are symmetrically distributed with respect to the fuselage.

[0008] Optionally, the rotation axes of the plurality of first driving handles coincide, and the plurality of first driving handles are arranged at equal angular intervals around the rotation axes.

[0009] In some examples, the vacuum pump also includes a support seat, a first buffer member, a second buffer member and a restraining frame, the pump body is located on the support seat, the first buffer member is located between the pump body and the support seat, the restraining frame is connected to the support seat and is partially located on a side of the pump body away from the support seat, and the second buffer member is located on a side of the pump body away from the support seat and is located between the restraining frame and the pump body.

[0010] Optionally, the pump body includes a frame, a first pump head assembly and a second pump head assembly, the first pump head assembly is located on a side of the frame close to the support seat and is connected to the first buffer member, the second pump head assembly is located on a side of the frame away from the support seat and is connected to the second buffer member, and the driving member is located in the frame.

[0011] Optionally, bearings are sleeved on both ends of the rotating shaft, the bearings are mounted on the frame, and a third buffer is provided in the gap between the bearings and the frame.

[0012] Optionally, the vacuum pump further comprises a shell, wherein the shell is connected to the support seat, and the pump body is located in the shell.

[0013] Optionally, the vacuum pump further comprises a mainboard bracket and a mainboard, wherein the mainboard bracket is located on a side of the pump body away from the support seat and is connected to the shell, a gap is provided between the mainboard bracket and the pump body, the mainboard is connected to the mainboard bracket and is electrically connected to the driving member.

[0014] Optionally, the mainboard bracket is connected to the shell via a shock-absorbing nut.

[0015] Optionally, a power supply component is further provided in the support seat, and the power supply component is electrically connected to the driving member.

[0016] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0017] By arranging the body of the driving member inside the pump body, both ends of the rotating shaft of the driving member extend out of the body, and both ends of the rotating shaft are connected to the pump body through driving handles, so that when the driving member is running, the rotating shaft rotates, and the pump body works under the joint action of the driving handles located on both sides of the body. Since both ends of the rotating shaft are loaded, the rotation of the rotating shaft will be more stable, and the vibration generated by the driving member during operation will be smaller, thereby reducing the vibration generated during the operation of the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of a vacuum pump provided in an embodiment of the present application;

[0020] Figure 2It is a schematic diagram of the exploded structure of a vacuum pump provided in an embodiment of the present application;

[0021] Figure 3 is a front view of a vacuum pump provided in an embodiment of the present application;

[0022] Figure 4 It is a structural schematic diagram of a vacuum pump provided in an embodiment of the present application;

[0023] Figure 5 It is a structural schematic diagram of a vacuum pump provided in an embodiment of the present application;

[0024] Figure 6 It is a structural schematic diagram of a vacuum pump provided in an embodiment of the present application;

[0025] Figure 7 It is a schematic diagram of the structure of a vacuum pump provided in an embodiment of the present application.

[0026] Figure Number:

[0027] Pump body: 10; frame: 11; frame: 111; bearing plate: 112; bearing: 113; third buffer: 114; first pump head assembly: 12; airway module: 121; inlet: 1211; outlet: 1212; diaphragm: 122; second pump head assembly: 13; connecting pipe: 14; driving member: 20; body: 21; rotating shaft: 22; driving handle: 30; first driving handle: 31; second driving handle: 32; supporting seat: 40; first buffer: 41; second buffer: 42; restraining frame: 50; shell: 60; bracket: 61; condenser: 62; container: 63; mainboard bracket: 70; shock absorbing nut: 71; radiator: 72; mainboard: 80; power supply assembly: 90; rotation axis: m. DETAILED DESCRIPTION

[0028] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0029] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0033] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "Multiple" means two or more.

[0034] When a closed container needs to be evacuated, the container is usually connected to a vacuum pump, and the vacuum pump is used to extract the gas in the container. The power part of the vacuum pump is generally an electric motor, which is connected to one side of the pump body. During the operation of the vacuum pump, the motor will generate relatively strong vibrations. Strong vibrations will not only generate loud noises, but also may affect the service life of the vacuum pump.

[0035] Figure 1 Schematic diagram of the structure of a vacuum pump provided in an embodiment of the present application. Figure 1 As shown, the vacuum pump includes a pump body 10 , a driving member 20 and a plurality of driving handles 30 .

[0036] The driving member 20 includes a body 21 and a rotating shaft 22, and both ends of the rotating shaft 22 are located outside the body 21. The body 21 is located in the pump body 10, and the body 21 is connected to the pump body 10. The driving handle 30 connects the rotating shaft 22 and the pump body 10.

[0037] A portion of the driving handles 30 among the plurality of driving handles 30 is connected to one end of the rotating shaft 22 , and another portion of the driving handles 30 among the plurality of driving handles 30 is connected to the other end of the rotating shaft 22 .

[0038] By arranging the body 21 of the driving member 20 inside the pump body 10, both ends of the rotating shaft 22 of the driving member 20 extend out of the body 21, and both ends of the rotating shaft 22 are connected to the pump body 10 through the driving handle 30, so that when the driving member 20 is running, the rotating shaft 22 rotates, and the pump body 10 works under the joint action of the driving handle 30 located on both sides of the body 21. Since both ends of the rotating shaft 22 are loaded, the rotation of the rotating shaft 22 will be more stable, and the vibration generated by the driving member 20 during operation will be smaller, thereby reducing the vibration generated during the operation of the vacuum pump.

[0039] Exemplarily, the driving member 20 can be a double-headed motor, for example, the double-headed motor can be a variable frequency motor. In other examples, the driving member 20 can also be other structures with a rotating shaft and capable of outputting power, such as a hydraulic motor.

[0040] Figure 2 is a schematic diagram of the exploded structure of a vacuum pump provided in an embodiment of the present application, such as Figure 2 As shown, the pump body 10 includes a frame 11 and a plurality of pump head assemblies. As a possible implementation, in the embodiment of the present application, the pump body 10 includes a first pump head assembly 12 and a second pump head assembly 13, and the first pump head assembly 12 and the second pump head assembly 13 are located on opposite sides of the frame 11. The driving member 20 is located in the frame 11. Exemplarily, the pump head assembly and the driving member 20 can be connected to the frame 11 by bolts.

[0041] With the frame 11 as support, the structure is not only simple, but also light, and the vibration generated when the driving member 20 is in operation is also small. In addition, the pump head assembly will also generate vibration during operation, and the first pump head assembly 12 and the second pump head assembly 13 are arranged on opposite sides of the frame 11. The vibrations generated by the first pump head assembly 12 and the second pump head assembly 13 can partially offset each other, further reducing the vibration during the operation of the vacuum pump.

[0042] In other examples, the pump body 10 may also include a larger number of pump head assemblies, for example, 4 pump head assemblies, which may be arranged around the driving member 20, for example, at equal angles around the circumference of the rotating shaft 22 of the driving member 20. The embodiment of the present application is described by only taking two pump head assemblies as an example.

[0043] The structures of the first pump head assembly 12 and the second pump head assembly 13 may be the same. Taking the first pump head assembly 12 as an example, Figure 2 As shown, the first pump head assembly 12 includes an airway module 121 and two diaphragms 122. The two diaphragms 122 are respectively connected to the airway module 121. The diaphragms 122 and the airway module 121 form a working chamber, and the two working chambers are connected to each other. One side of the airway module 121 has an inlet 1211, and the other side has an outlet 1212. One of the two working chambers is connected to the inlet 1211, and the other is connected to the outlet 1212. The two diaphragms 122 are respectively connected to the driving handle 30. The diaphragms move under the drive of the driving handle 30, so that the volume of the working chamber changes, so that the fluid is sucked into the working chamber, or discharged from the working chamber. For example, the working chamber connected to the inlet 1211 is defined as the first working chamber, and the working chamber connected to the outlet 1212 is defined as the second working chamber. When the volume of the first working chamber increases and the volume of the second working chamber decreases, the gas is sucked into the first working chamber from the inlet 1211, and the gas in the second working chamber is discharged from the outlet 1212. When the volume of the first working chamber decreases and the volume of the second working chamber increases, the gas in the first working chamber enters the second working chamber. The volumes of the first working chamber and the second working chamber change alternately, so that the gas can be continuously sucked from the inlet 1211 and discharged from the outlet 1212. The structural description of the airway module 121 in the embodiment of the present application is only an example, and the specific structure of the airway module 121 can be the same as that in the related art.

[0044] like Figure 2 As shown, the pump body 10 may further include a connecting tube 14, one end of which may be connected to the inlet 1211 of the airway module 121 of the first pump head assembly 12, and the other end of which may be connected to the outlet 1212 of the airway module 121 of the second pump head assembly 13, thereby connecting the two airway modules 121 in series.

[0045] In some examples, the diaphragm 122 and the connecting tube 14 may be made of an anti-corrosion material, such as polytetrafluoroethylene. The diaphragm 122 and the connecting tube 14 will directly contact the medium sucked by the vacuum pump. By using an anti-corrosion material to make the diaphragm 122 and the connecting tube 14, it is beneficial to extend the service life of the vacuum pump.

[0046] like Figure 2 As shown, the plurality of driving handles 30 include a plurality of first driving handles 31 and a plurality of second driving handles 32. The first driving handles 31 are located on one side of the body 21, and the second driving handles 32 are located on the other side of the body 21. The first driving handles 31 and the second driving handles 32 are symmetrically distributed about the body 21.

[0047] A portion of the multiple first drive handles 31 are connected to the first pump head assembly 12, and another portion of the multiple first drive handles 31 are connected to the second pump head assembly 13. A portion of the multiple second drive handles 32 are connected to the first pump head assembly 12, and another portion of the multiple second drive handles 32 are connected to the second pump head assembly 13. Here, the first drive handles 31 and the second drive handles 32 are symmetrically distributed with respect to the body 21, which means that the distribution mode of the multiple first drive handles 31 in the direction away from the body 21 along the rotating shaft 22 is the same as the distribution mode of the multiple second drive handles 32 in the direction away from the body 21 along the rotating shaft 22. For example, Figure 3 is a front view of a vacuum pump provided in an embodiment of the present application, such as Figure 3 As shown, in the present example, the plurality of driving handles 30 include two first driving handles 31 and two second driving handles 32, wherein, among the two first driving handles 31, the first driving handle 31 close to the body 21 is connected to the second pump head assembly 13, and the first driving handle 31 away from the body 21 is connected to the first pump head assembly 12; and among the two second driving handles 32, the second driving handle 32 close to the body 21 is connected to the second pump head assembly 13, and the second driving handle 32 away from the body 21 is connected to the first pump head assembly 12.

[0048] By arranging a plurality of driving handles 30 in a symmetrical distribution, the loads at both ends of the rotating shaft 22 can be balanced, so that the operation of the driving member 20 is more stable, which is beneficial to reducing the vibration of the vacuum pump during operation.

[0049] like Figure 3 As shown, the rotation axes m of the plurality of first driving handles 31 coincide with each other, and the plurality of first driving handles 31 are arranged at equal angular intervals around the rotation axis m.

[0050] In this example, the two first driving handles 31 are arranged 180° apart.

[0051] The driving handle 30 is not coaxially arranged with the rotating shaft 22. When the rotating shaft 22 rotates, the driving handle 30 and the rotating shaft 22 will not only rotate relative to each other, but also move relative to each other in the radial direction. Taking the first driving handle 31 as an example, the rotation axis m of the first driving handle 31 is parallel to the rotating shaft 22 but does not overlap. During the rotation of the rotating shaft 22, the rotation axis m of the first driving handle 31 rotates around the rotating shaft 22, and the driving handle 30 moves toward or away from the pump head assembly to drive the pump head assembly.

[0052] In some examples, the rotating shaft 22 may be a crankshaft, and the driving handle 30 may be sleeved on a journal of the crankshaft.

[0053] As an example, in the embodiment of the present application, the rotating shaft 22 is a straight shaft, and eccentric sleeves 221 are sleeved on both ends of the rotating shaft 22, and the driving handle 30 is sleeved outside the eccentric sleeve 221. The processing difficulty of the crankshaft is generally large and the cost is high. By using a structure in which the eccentric sleeve 221 and the straight shaft are combined to replace the crankshaft, the production cost can be reduced.

[0054] In the embodiment of the present application, the eccentric sleeves 221 at both ends of the rotating shaft 22 have a phase difference of π after being installed in place, that is, the axes of the outer walls of the two eccentric sleeves 221 are coplanar with the axis of the rotating shaft 22, and the axis of the rotating shaft 22 is located between the axes of the outer walls of the two eccentric sleeves 221.

[0055] like Figure 2 As shown, bearings 113 are sleeved on both ends of the rotating shaft 22 , and the bearings 113 are installed on the frame 11 .

[0056] The frame 11 may include a frame body 111 and a bearing plate 112, wherein the bearing plates 112 are arranged on both sides of the frame body 111, and the bearings 113 are mounted on the bearing plates 112. The bearings 113 provide support to both ends of the rotating shaft 22, so that the operation of the driving member 20 can be more stable.

[0057] like Figure 2 As shown, a third buffer member 114 is disposed in the gap between the bearing 113 and the frame 11. Exemplarily, the third buffer member 114 may be disposed in the bearing mounting hole of the bearing disk 112.

[0058] During the rotation of the shaft 22 , the shaft 22 may cause vibration of the bearing 113 . The third buffer 114 is provided in the gap between the bearing 113 and the frame 11 to absorb the vibration of the bearing 113 and reduce the influence of the vibration of the bearing 113 on the frame 11 .

[0059] Exemplarily, the third buffer member 114 may be in a cylindrical shape and sleeved outside the bearing 113. In the embodiment of the present application, the third buffer member 114 may be an elastic sleeve, such as a sleeve made of rubber.

[0060] Figure 4 Schematic diagram of the structure of a vacuum pump provided in an embodiment of the present application. Figure 4 As shown, compared to Figure 3The vacuum pump shown in the figure further includes a support seat 40, on which the pump body 10 is disposed. The first pump head assembly 12 is located on a side of the frame 11 close to the support seat 40, and the second pump head assembly 13 is located on a side of the frame 11 away from the support seat 40, that is, when the vacuum pump is placed upright, the first pump head assembly 12 is located above the support seat 40, the frame 11 is located above the first pump head assembly 12, and the second pump head assembly 13 is located above the frame 11. The support seat 40 is used to provide a more stable support, so that the vacuum pump is more stable when working.

[0061] Optionally, a power supply component 90 is further disposed in the support seat 40 , and the power supply component 90 is electrically connected to the driving member 20 .

[0062] By setting the power supply assembly 90 in the support base 40, not only can the vibration impact on the power supply assembly 90 be reduced, but also the weight of the support base 40 can be increased, the center of gravity of the vacuum pump can be lowered, and the vacuum pump can be placed more stably to reduce the possibility of tipping over.

[0063] The power supply component 90 may include at least one of a battery and a power adapter. When the power supply component 90 includes a battery, the battery may be a rechargeable battery, such as a lead-acid battery, a lithium battery, etc. By providing a battery, the vacuum pump can operate in an environment where it is not convenient to use a power supply line.

[0064] As an example, the vacuum pump may further include a first buffer 41, a second buffer 42 and a restraining frame 50, wherein the first buffer 41 is located between the pump body 10 and the support seat 40. The restraining frame 50 is connected to the support seat 40, and a portion of the restraining frame 50 is located on a side of the pump body 10 away from the support seat 40. The second buffer 42 is located on a side of the pump body 10 away from the support seat 40, and the second buffer 42 is located between the restraining frame 50 and the pump body 10.

[0065] The restraining frame 50 provides downward pressure for the pump body 10, so that the pump body 10 can be more stably supported on the support seat 40. The first buffer 41 and the second buffer 42 play a buffering role. During the operation of the pump body 10, the pump body 10 will vibrate. The first buffer 41 and the second buffer 42 can reduce the impact of the pump body 10 on the support seat 40, reduce the vibration of the support seat 40, make the vacuum pump more stable, and help to further reduce noise.

[0066] The first buffer member 41 and the second buffer member 42 may have the same structure. For example, the first buffer member 41 and the second buffer member 42 may be rubber pads.

[0067] In the embodiment of the present application, the first pump head assembly 12 is connected to the first buffer 41, and the second pump head assembly 13 is connected to the second buffer 42. For example, the airway module 121 of the first pump head assembly 12 may have a positioning groove on the side away from the driving member 20, and the first buffer 41 is at least partially located in the positioning groove. By limiting the positioning groove, the first buffer 41 can be installed more stably, and will not be displaced due to the influence of vibration during the operation of the vacuum pump.

[0068] In addition, a shock-absorbing pad may be provided at the bottom of the support seat 40 to further reduce the vibration caused by the operation of the vacuum pump.

[0069] Figure 5 Schematic diagram of the structure of a vacuum pump provided in an embodiment of the present application. Figure 5 As shown, the vacuum pump may further include a housing 60 , which is connected to the support seat 40 . The pump body 10 , the first buffer 41 , the second buffer 42 and the restraining frame 50 may all be located in the housing 60 .

[0070] The housing 60 not only plays a protective role, but also arranges the pump body 10 inside the housing 60 to block sound and reduce noise when the vacuum pump is working.

[0071] A handle may also be provided on the top of the housing 60 to facilitate carrying the vacuum pump. The handle may be fixedly connected to the housing 60.

[0072] The housing 60 may be an integral structure, or may include a plurality of sub-housings that are directly detachable from each other, so as to facilitate the manufacture or disassembly of the housing 60 . Figure 5 In order to facilitate the display of the structure of the vacuum pump, a part of the housing 60 is disassembled.

[0073] like Figure 5 As shown, the vacuum pump further includes a mainboard bracket 70 and a mainboard 80. The mainboard bracket 70 is located on a side of the pump body 10 away from the support seat 40 and is connected to the housing 60. There is a gap between the mainboard bracket 70 and the pump body 10. The mainboard 80 is connected to the mainboard bracket 70. The mainboard 80 is also electrically connected to the driving member 20. The mainboard 80 is used to control the operation of the driving member 20.

[0074] The mainboard bracket 70 is connected to the housing 60, and the housing 60 is used to provide support, while there is a gap between the mainboard bracket 70 and the pump body 10. This can prevent the vibration of the pump body 10 from being directly transmitted to the mainboard bracket 70, which is conducive to reducing the vibration of the mainboard bracket 70, making the mainboard 80 more stable, and preventing strong vibration from damaging the mainboard 80.

[0075] In some examples, the mainboard bracket 70 is connected to the housing 60 via a shock absorbing nut 71 .

[0076] The use of the shock absorbing nut 71 to fix the mainboard bracket 70 is helpful to further reduce the vibration of the mainboard bracket 70 and make the mainboard 80 more stable.

[0077] The mainboard bracket 70 may also be provided with a radiator 72, which may contact the mainboard 80 to dissipate heat from the mainboard 80. The radiator 72 and the pump body 10 are spaced apart from each other, that is, the two are not in direct contact, so as to avoid the vibration of the pump body 10 being directly transmitted to the radiator 72.

[0078] Figure 6 Schematic diagram of the structure of a vacuum pump provided in an embodiment of the present application. Figure 6 As shown, at least one of a display screen 601, a control button 602 and a power switch 603 may be provided on the housing 60. The display screen 601 may be used to display the working parameters of the vacuum pump, such as the power and rotation speed of the driving member 20. The control button 602 may be used to adjust the working state of the vacuum pump, such as adjusting the rotation speed of the driving member 20. The display screen 601, the control button 602 and the power switch 603 may be arranged on the same surface of the housing 60 for easy viewing and operation. A control module, such as a control circuit, may also be provided inside the housing 60. The control module may be electrically connected to at least one of the display screen 601, the control button 602 and the power switch 603, and the control module may also be electrically connected to the aforementioned mainboard 80.

[0079] Figure 7 is a schematic diagram of the structure of a vacuum pump provided in an embodiment of the present application, such as Figure 7 As shown, compared to Figure 5 The vacuum pump shown in the figure may further include a bracket 61 and a condenser 62. The bracket 61 may be connected to the outside of the shell 60, and the bracket 61 and the shell 60 may be fixedly connected or detachably connected. For example, in this example, the bracket 61 and the shell 60 may be detachably connected in a snap-fit ​​manner. The bracket 61 is used to clamp the condenser 62. When it is necessary to condense the gaseous medium extracted from the pump body 10, the extracted gas can be introduced into the condenser 62. The lower end of the condenser 62 may also be connected to a container 63 to collect the liquid medium formed after the condenser 62 is condensed.

[0080] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A vacuum pump, characterized in that: The invention comprises a pump body (10), a driving member (20) and a plurality of driving handles (30), wherein the driving member (20) comprises a body (21) and a rotating shaft (22), both ends of the rotating shaft (22) are located outside the body (21), the body (21) is located in the pump body (10) and is connected to the pump body (10), the driving handle (30) connects the rotating shaft (22) and the pump body (10), a part of the driving handles (30) among the plurality of driving handles (30) is connected to one end of the rotating shaft (22), and another part of the driving handles (30) among the plurality of driving handles (30) is connected to the other end of the rotating shaft (22).

2. The vacuum pump according to claim 1, characterized in that The plurality of driving handles (30) include a plurality of first driving handles (31) and a plurality of second driving handles (32), wherein the first driving handles (31) and the second driving handles (32) are symmetrically distributed with respect to the fuselage (21).

3. The vacuum pump according to claim 2, characterized in that The rotation axes (m) of the plurality of first driving handles (31) coincide with each other, and the plurality of first driving handles (31) are arranged at equal angular intervals around the rotation axis (m).

4. The vacuum pump according to any one of claims 1 to 3, characterized in that: It also includes a support seat (40), a first buffer member (41), a second buffer member (42) and a binding frame (50), wherein the pump body (10) is located on the support seat (40), the first buffer member (41) is located between the pump body (10) and the support seat (40), the binding frame (50) is connected to the support seat (40), and a portion of the binding frame (50) is located on a side of the pump body (10) away from the support seat (40), and the second buffer member (42) is located on a side of the pump body (10) away from the support seat (40), and is located between the binding frame (50) and the pump body (10).

5. The vacuum pump according to claim 4, characterized in that The pump body (10) comprises a frame (11), a first pump head assembly (12) and a second pump head assembly (13); the first pump head assembly (12) is located on a side of the frame (11) close to the support seat (40) and connected to the first buffer member (41); the second pump head assembly (13) is located on a side of the frame (11) away from the support seat (40) and connected to the second buffer member (42); the driving member (20) is located in the frame (11).

6. The vacuum pump according to claim 5, characterized in that Both ends of the rotating shaft (22) are sleeved with bearings (113), the bearings (113) are mounted on the frame (11), and a third buffer (114) is provided in the gap between the bearings (113) and the frame (11).

7. The vacuum pump according to claim 4, characterized in that It also comprises a shell (60), wherein the shell (60) is connected to the support seat (40), and the pump body (10) is located in the shell (60).

8. The vacuum pump according to claim 7, characterized in that It also includes a mainboard bracket (70) and a mainboard (80), wherein the mainboard bracket (70) is located on a side of the pump body (10) away from the support seat (40) and is connected to the shell (60), and there is a gap between the mainboard bracket (70) and the pump body (10), and the mainboard (80) is connected to the mainboard bracket (70) and is electrically connected to the driving member (20).

9. The vacuum pump according to claim 8, characterized in that The mainboard bracket (70) is connected to the housing (60) via a shock absorbing nut (71).

10. The vacuum pump according to claim 4, characterized in that A power supply component (90) is also provided in the support seat (40), and the power supply component (90) is electrically connected to the driving member (20).

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