Multi-cavity vacuum long pump shell

Abstract

The utility model relates to the field of vacuum pumps, in particular to a multi-cavity vacuum long pump shell which comprises a shell body and a cover body, the shell body and the cover body are detachably and fixedly connected, and a motor cavity, a first suction cavity, a second suction cavity, a first transmission cavity and a second transmission cavity are formed in the shell body. The device further comprises a water inlet, a connecting port and a water outlet, the water inlet penetrates through the shell body and then is connected with the first suction cavity, one end of the connecting port is connected with the first suction cavity, the other end of the connecting port is connected with the second suction cavity, and the water outlet penetrates through the shell body and is connected with the second suction cavity. According to the utility model, the first suction cavity and the second suction cavity are arranged, so that the screw rod for realizing vacuum suction is not too long, and the condition of lower vacuum degree caused by too large volume is avoided.

Description

Technical Field

[0001] The utility model relates to the field of vacuum pumps, in particular to a multi-cavity vacuum long pump housing. Background Art

[0002] A vacuum pump is a device that uses various methods to create, improve and maintain vacuum in a closed space. A vacuum pump can be defined as a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to obtain a vacuum.

[0003] At present, the common long pump housing adopts a single-chamber design to ensure a higher volume and a better drainage speed; however, the longer single chamber makes it impossible for the vacuum degree in the pump body to reach a higher level, and can only reach a low vacuum, which in turn restricts the suction speed of the vacuum pump. Therefore, it is necessary to improve such a structure to overcome the above defects. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a multi-cavity vacuum long pump housing. The utility model is achieved through the following technical solutions:

[0005] A multi-chamber vacuum long pump housing comprises a housing body and a cover body, wherein the housing body and the cover body are detachably fixedly connected, wherein the housing body is provided with a motor chamber, a first suction chamber, a second suction chamber, a first transmission chamber and a second transmission chamber, and further comprises a water inlet, a connecting port and a water outlet, wherein the water inlet passes through the housing body and is connected to the first suction chamber, one end of the connecting port is connected to the first suction chamber, and the other end is connected to the second suction chamber, and the water outlet passes through the housing body and is connected to the second suction chamber.

[0006] In the above technical solution: the shell body is used to carry the remaining parts of the vacuum pump; the cover body is used to be assembled with the shell body so that the cavity is open only at the opening; the motor cavity is used to set the motor and the transmission assembly; the first suction chamber is used to set the first group of screw assemblies to achieve the first vacuum suction; the second suction chamber is used to set the second group of screw assemblies to achieve the second vacuum suction; the first transmission chamber is used to set the first group of transmission gears; the second transmission chamber is used to set the second group of transmission gears; the water inlet is used to supply liquid to enter the first transmission chamber; the connecting port is used to supply liquid in the first transmission chamber to enter the second transmission chamber; the water outlet is used to discharge liquid.

[0007] The utility model is further configured as follows: the first transmission chamber is located between the first suction chamber and the second suction chamber.

[0008] In the above technical solution: the position setting of the first transmission chamber facilitates the connection between the first group of transmission gears in the first transmission chamber and the first group of screw rod assemblies in the first suction chamber.

[0009] The utility model is further configured as follows: two first clearance holes are further provided on the shell body, the first clearance holes connect the first suction chamber and the first transmission chamber, and a first fixing block is further detachably provided at the first clearance holes.

[0010] In the above technical solution: the first clearance hole is used for connecting the first set of transmission gears with the first set of screw assemblies; the first fixing block is used to fix the rotating shaft connecting the first set of transmission gears with the first set of screw assemblies, and is convenient for setting bearings and mechanical seal components.

[0011] The utility model is further configured as follows: the connecting port is not connected to the first transmission cavity.

[0012] In the above technical solution: the connecting port is not connected to the first transmission cavity to prevent liquid from entering the first transmission cavity.

[0013] The utility model is further configured as follows: a second clearance hole is further provided on the shell body, the second clearance hole connects the first transmission cavity and the motor cavity, and a second fixing block is further provided at the second clearance hole.

[0014] In the above technical solution: the second clearance hole is used for connecting the first group of transmission gears in the first transmission cavity with the motor and the transmission assembly in the motor cavity; the second fixing block is used to fix the rotating shaft connecting the first group of transmission gears and the transmission assembly, and is convenient for setting bearings and mechanical seal components.

[0015] The utility model is further configured as follows: a third clearance hole is further provided on the shell body, the third clearance hole connects the second transmission cavity and the motor cavity, and a third fixing block is further provided at the third clearance hole.

[0016] In the above technical solution: the third clearance hole is used for connecting the second group of transmission gears in the second transmission cavity with the motor and the transmission assembly in the motor cavity; the third fixing block is used to fix the second group of transmission gears and the rotating shaft of the transmission assembly, and it is convenient to set the bearings and mechanical seal components.

[0017] The utility model is further configured as follows: a fourth clearance hole is further provided on the shell body, the fourth clearance hole connects the second transmission chamber and the second suction chamber, and a fourth fixing block is further provided at the fourth clearance hole.

[0018] In the above technical solution: the fourth clearance hole is used for connecting the second group of transmission gears in the second transmission chamber with the second group of screw assemblies in the second suction chamber; the fourth fixing block is used to fix the rotating shaft connecting the second group of transmission gears and the second group of screw assemblies, and is convenient for setting bearings and mechanical seal components.

[0019] The utility model discloses a multi-cavity vacuum long pump housing. Compared with the prior art:

[0020] 1. The utility model provides a first suction chamber and a second suction chamber, so that the screw for achieving vacuum suction is not too long, thereby avoiding the situation where the vacuum degree is low due to excessive volume;

[0021] 2. After the utility model is assembled with other parts of the vacuum pump, by setting screw assemblies with different rotation speeds in the first suction chamber and the second suction chamber, the vacuum degree in the second suction chamber is made greater than the vacuum degree in the first suction chamber, and the vacuum degree in the second suction chamber is maintained, thereby accelerating the drainage speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view of the housing body of the utility model;

[0023] Figure 2 It is the front view of the utility model;

[0024] Figure 3 It is a top view of the housing body of the utility model after assembly;

[0025] Figure 4 It is a cross-sectional view of the shell body at the water inlet.

[0026] The corresponding component names represented by the numbers and letters in the figure are: 10-shell body; 101-motor cavity; 102-first suction cavity; 103-second suction cavity; 104-first transmission cavity; 105-second transmission cavity; 106-water inlet; 107-connecting port; 108-water outlet; 109-first make way hole; 1010-second make way hole; 1011-third make way hole; 1012-fourth make way hole; 20-cover body; 30-first fixing block; 40-second fixing block; 50-third fixing block; 60-fourth fixing block. DETAILED DESCRIPTION

[0027] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0028] like Figure 1-4As shown, the utility model proposes a multi-chamber vacuum long pump shell, including a shell body 10 and a cover body 20, the shell body 10 and the cover body 20 are detachably fixedly connected, the shell body 10 is provided with a motor cavity 101, a first suction cavity 102, a second suction cavity 103, a first transmission cavity 104 and a second transmission cavity 105, and also includes a water inlet 106, a connecting port 107 and a water outlet 108, the water inlet 106 passes through the shell body 10 and is connected to the first suction cavity 102, one end of the connecting port 107 is connected to the first suction cavity 102, and the other end is connected to the second suction cavity 103, and the water outlet 108 passes through the shell body 10 and is connected to the second suction cavity 103.

[0029] like Figure 1-4 As shown, the utility model proposes a multi-chamber vacuum long pump housing, wherein the first transmission chamber 104 is located between the first suction chamber 102 and the second suction chamber 103 .

[0030] like Figure 1-4 As shown, the utility model proposes a multi-chamber vacuum long pump housing, the housing body 10 is further provided with two first clearance holes 109, the first clearance holes 109 connect the first suction chamber 102 and the first transmission chamber 104, and the first clearance holes 109 are further provided with a first fixing block 30 which can be detachably provided. Among them, a first mounting groove is provided at a corresponding position on the inner wall of the first suction chamber 102, for setting the rotating shaft of the screw assembly; the first fixing block 30 is connected to the housing body 10 by bolts.

[0031] like Figure 1-4 As shown, in the multi-cavity vacuum long pump housing proposed by the present invention, the connection port 107 is not connected to the first transmission cavity 104 .

[0032] like Figure 1-4 As shown, the utility model proposes a multi-cavity vacuum long pump housing, the housing body 10 is further provided with a second clearance hole 1010, the second clearance hole 1010 connects the first transmission cavity 104 and the motor cavity 101, and the second clearance hole 1010 is further provided with a second fixing block 40. The second fixing block 40 is connected to the housing body 10 by bolts.

[0033] like Figure 1-4 As shown, the utility model proposes a multi-cavity vacuum long pump housing, the housing body 10 is further provided with a third clearance hole 1011, the third clearance hole 1011 connects the second transmission cavity 105 and the motor cavity 101, and the third clearance hole 1011 is further provided with a third fixing block 50. The third fixing block 50 is connected to the housing body 10 by bolts.

[0034] like Figure 1-4 As shown, the utility model proposes a multi-cavity vacuum long pump housing, the housing body 10 is further provided with a fourth clearance hole 1012, the fourth clearance hole 1012 connects the second transmission cavity 105 and the second suction cavity 103, and the fourth clearance hole 1012 is further provided with a fourth fixing block 60. The fourth fixing block 60 is connected to the housing body 10 by bolts.

[0035] The working principle of the utility model is:

[0036] a) Install the utility model with the remaining components of the vacuum pump;

[0037] b) after starting, the vacuum degree in the second suction chamber is greater than the vacuum degree in the first suction chamber;

[0038] c) liquid enters the first suction chamber from the water inlet;

[0039] d) then entering the second suction chamber through the connecting port;

[0040] e) Increased water flow rate;

[0041] f) The liquid is discharged from the second suction chamber through the water outlet.

[0042] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A multi-cavity vacuum long pump housing, characterized in that: The invention comprises a shell body (10) and a cover body (20), wherein the shell body (10) and the cover body (20) are detachably fixedly connected, and the shell body (10) is provided with a motor cavity (101), a first suction cavity (102), a second suction cavity (103), a first transmission cavity (104) and a second transmission cavity (105), and further comprises a water inlet (106), a connecting port (107) and a water outlet (108), wherein the water inlet (106) passes through the shell body (10) and is connected to the first suction cavity (102), one end of the connecting port (107) is connected to the first suction cavity (102), and the other end is connected to the second suction cavity (103), and the water outlet (108) passes through the shell body (10) and is connected to the second suction cavity (103).

2. A multi-cavity vacuum long pump housing according to claim 1, characterized in that: The first transmission chamber (104) is located between the first suction chamber (102) and the second suction chamber (103).

3. A multi-cavity vacuum long pump housing according to claim 2, characterized in that: The shell body (10) is also provided with two first clearance holes (109), the first clearance holes (109) connecting the first suction chamber (102) and the first transmission chamber (104), and the first clearance holes (109) are also detachably provided with a first fixing block (30).

4. A multi-cavity vacuum long pump housing according to claim 3, characterized in that: The connection port (107) is not connected to the first transmission chamber (104).

5. A multi-cavity vacuum long pump housing according to claim 2 or 4, characterized in that: The housing body (10) is also provided with a second clearance hole (1010), the second clearance hole (1010) connecting the first transmission cavity (104) and the motor cavity (101), and a second fixing block (40) is also provided at the second clearance hole (1010).

6. A multi-cavity vacuum long pump housing according to claim 5, characterized in that: The housing body (10) is also provided with a third clearance hole (1011), the third clearance hole (1011) connecting the second transmission cavity (105) and the motor cavity (101), and a third fixing block (50) is also provided at the third clearance hole (1011).

7. A multi-cavity vacuum long pump housing according to claim 6, characterized in that: The shell body (10) is also provided with a fourth clearance hole (1012), the fourth clearance hole (1012) connecting the second transmission chamber (105) and the second suction chamber (103), and a fourth fixing block (60) is also provided at the fourth clearance hole (1012).

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