Vacuum unit structure with detachable lower pump

Abstract

The utility model provides a vacuum unit structure with a detachable lower pump, comprising: a rack, the rack comprises a lower layer frame, a connecting rod and an upper layer frame, the upper layer frame is connected with the lower layer frame through the connecting rod, and one side of the lower layer frame is provided with a mounting channel; the fixing plate is arranged on the lower layer frame; the lower pump body is arranged on the fixed plate; the moving assembly is arranged between the fixing plate and the lower pump body, and the moving assembly can drive the lower pump body to move out of the lower layer frame along the mounting channel; the device has the beneficial effects that the fixing plate is detachably installed on the lower layer frame, the supporting plate is detachably installed on the fixing plate, after the fixing plate and the lower layer frame are detached, and the supporting plate and the fixing plate are detached, the upper pump body is driven by the moving assembly to move in and out of the rack, and the lower pump body is conveniently installed and overhauled; the maintenance time of the lower pump body can be greatly shortened, and the maintenance efficiency of the lower pump body is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of vacuum instruments, and in particular relates to a vacuum unit structure with a detachable lower pump. Background Art

[0002] Vacuum pumps are widely used in industries such as refrigeration, vacuum coating, lithium batteries, vacuum smelting, and photovoltaics. Different production processes require vacuum pumps with varying pumping speeds. Sometimes, due to the large size of the vacuum chamber, a single high-speed oil pump simply cannot meet the required pumping speed. In such cases, a vacuum unit consisting of a Roots pump and an oil pump must be considered. A single vacuum unit can replace multiple oil pumps, reducing equipment usage. The advantages of a vacuum unit include: 1. It increases the unit's operating limit. 2. It increases pumping speed and shortens pumping time.

[0003] Vacuum units are typically designed with upper and lower pumps bolted to the frame, creating a skid-mounted structure. This design features a compact design and a small footprint. When maintenance is required, the unit must have ample space around it for installation and removal, or be easily accessible. Small vacuum units are lightweight and easy to handle, making the upper and lower pumps easy to remove. However, large units are particularly difficult to remove due to the bulk and weight of the lower pump. This is especially true for the lower pump's foreline pump, which is located within the frame. Obstructed by the upper pump, removing it from the frame is more laborious, reducing maintenance efficiency. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] In order to solve the above problems, the present application provides a vacuum unit structure with a detachable lower pump, comprising:

[0006] A frame, the frame comprising a lower frame, a connecting rod and an upper frame, the upper frame being connected to the lower frame via the connecting rod, and a mounting channel being provided on one side of the lower frame;

[0007] a fixed plate, the fixed plate being arranged on the lower shelf;

[0008] a lower pump body, the lower pump body being arranged on the fixing plate;

[0009] A moving component is arranged between the fixed plate and the lower pump body, and the moving component can drive the lower pump body to move out of the lower shelf along the installation channel.

[0010] Optionally, the mobile component includes:

[0011] a lower pump seat, on which the lower pump body is arranged;

[0012] The support plate is arranged between the lower pump seat and the fixed plate, and each of the support plates is provided with a supporting portion and a moving portion.

[0013] Optionally, the support portion includes:

[0014] an adjusting rod connected to the supporting plate;

[0015] A bottom plate is arranged at the bottom of the adjusting rod.

[0016] Optionally, the adjusting rod is threadedly connected to the supporting plate.

[0017] Optionally, the support plate and the fixed plate, and the fixed plate and the lower shelf are all detachably connected.

[0018] Optionally, there are four support plates, which are symmetrically arranged in pairs on both sides of the lower pump seat.

[0019] Optionally, a closing rod is further included, and the closing rod is arranged on the installation channel of the lower shelf.

[0020] Optionally, the closing rod is detachably connected to the lower shelf.

[0021] Optionally, an upper pump body is further included, and the upper pump body is arranged on the upper shelf.

[0022] Optionally, a support beam is provided on the upper frame, and the upper pump body is provided on the support beam.

[0023] Beneficial effects

[0024] A lower pump detachable vacuum unit structure provided in the embodiment of the present utility model has the following beneficial effects: it can be detachably installed on the lower frame through a fixing plate, and the support plate can be detachably installed on the fixing plate. After the fixing plate and the lower frame and the support plate and the fixing plate are disassembled, the upper pump body can be driven in and out of the frame by the moving assembly, which is convenient for the installation and maintenance of the lower pump body, can greatly shorten the maintenance time of the lower pump body, and improve the maintenance efficiency of the lower pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the main structural diagram of the utility model;

[0026] Figure 2 This is a diagram of the connection structure of the lower pump body and the moving component of the utility model.

[0027] The reference numerals indicate:

[0028] 1. Frame; 11. Lower frame; 12. Connecting rod; 13. Upper frame; 2. Fixed plate; 3. Lower pump body; 4. Moving assembly; 41. Lower pump seat; 42. Support plate; 43. Support part; 431. Adjusting rod; 432. Bottom plate; 44. Moving part; 5. Closing rod; 6. Upper pump body; 7. Support beam. DETAILED DESCRIPTION

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0031] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0033] See also Figure 1-2 As shown, according to an embodiment of the present application, a lower pump detachable vacuum unit structure is provided, comprising:

[0034] The frame 1 includes a lower frame 11, a connecting rod 12, and an upper frame 13. The upper frame 13 is connected to the lower frame 11 through the connecting rod 12. A mounting channel is provided on one side of the lower frame 11.

[0035] A fixed plate 2, the fixed plate 2 being arranged on the lower shelf 11;

[0036] A lower pump body 3, wherein the lower pump body 3 is arranged on the fixing plate 2;

[0037] The movable component 4 is arranged between the fixed plate 2 and the lower pump body 3. The movable component 4 can drive the lower pump body 3 to move out of the lower shelf 11 along the installation channel.

[0038] Specifically, the frame 1 includes an upper frame 13, a connecting rod 12 and a lower frame 11. The upper frame 13 is used to fix the upper pump body 6, and the lower frame 11 is used to fix the lower pump body 3. The connecting rod 12 is installed between the upper frame 13 and the lower frame 11 to realize the connection between the upper frame 13 and the lower frame 11, forming an integral frame 1 structure; a plurality of fixed plates 2 are installed between the lower frames 11 for fixing and supporting the lower pump body 3, and a movable assembly 4 is installed between the lower pump body 3 and the fixed plate 2. The movable assembly 4 can move the upper pump body 6 into and out of the frame 1, which is convenient for the installation and maintenance of the lower pump body 3, can greatly shorten the maintenance time of the lower pump body 3, and improve the maintenance efficiency of the lower pump body 3.

[0039] Among them, the upper frame 13 and the lower frame 11 are both rectangular frames, and there are multiple connecting rods 12, which are vertically installed between the four corners of the upper frame 13 and the lower frame 11, so that the frame 1 forms an upper and lower double-layer structure. The upper frame is used to fix the upper pump body 6, and the lower frame is used to simultaneously support and fix the lower pump body 3. The structure is compact and occupies a small area. Furthermore, there are four connecting rods 12, which are installed at the four corners of the upper frame 13 and the lower frame 11 to achieve a stable connection.

[0040] Among them, one side of the lower frame 11 is an open structure to form an installation channel. Through the setting of the installation channel, it is convenient to move the lower pump body 3 into and out of the frame 1 through the moving component 4, which is convenient for subsequent maintenance work on the lower pump body 3.

[0041] The mobile component 4 includes:

[0042] A lower pump seat 41, on which the lower pump body 3 is disposed;

[0043] The support plates 42 are disposed between the lower pump seat 41 and the fixed plate 2 . Each of the support plates 42 is provided with a support portion 43 and a movable portion 44 .

[0044] Specifically, the movable assembly 4 includes a lower pump seat 41 and a support plate 42. The lower pump body 3 is installed on the lower pump seat 41. The lower pump seat 41 is used to fix the lower pump body 3. The support plates 42 are symmetrically installed on both sides of the lower pump seat and are connected to the fixed plate 2. The support part 43 and the movable part 44 are installed on each support plate 42; when the lower pump body 3 is fixed in use, the support part 43 is in contact with the ground to achieve stable support; when the lower pump body 3 needs to be inspected and repaired, the movable part 44 can be in contact with the ground to drive the lower pump body 3 to move out of the frame 1 for easy inspection and repair of the lower pump body 3.

[0045] The moving portion 44 is a caster, and the supporting portion 43 is a supporting foot cup.

[0046] The support portion 43 includes:

[0047] an adjusting rod 431 connected to the supporting plate 42;

[0048] The bottom plate 432 is disposed at the bottom of the adjusting rod 431 .

[0049] The adjusting rod 431 is threadedly connected to the supporting plate 42 .

[0050] The bottom plate 432 is mounted on the bottom of the adjusting rod 431 , and the bottom plate 432 is a rectangular or circular structure, so that the contact surface of the bottom plate 432 when in contact with the ground is larger, which can improve the stability of the support of the supporting portion 43 . The adjusting rod 431 is used to adjust the distance between the bottom plate 432 and the supporting plate 42 , thereby enabling use under different working conditions. For example, when the lower pump body 3 does not need to be repaired and needs to be stably fixed inside the frame 1 , the adjusting rod 431 will drive the bottom plate 432 to contact the ground. At this time, the movable part 44 is above the ground. When the lower pump body 3 needs to be repaired, the adjusting rod 431 will drive the bottom plate 432 to move toward the support plate 42, so that the movable part 44 contacts the ground. At this time, the lower pump body 3 can be pushed out from the inside of the frame 1 to facilitate subsequent maintenance work.

[0051] Among them, the adjusting rod 431 can be a threaded rod, and the position of the bottom plate 432 can be adjusted through the threaded connection between the adjusting rod 431 and the support plate 42; the adjusting rod 431 can also be a hydraulic rod, and the bottom plate 432 can be driven to move by the output end of the hydraulic rod to adjust the position of the bottom plate 432.

[0052] The support plate 42 and the fixing plate 2 as well as the fixing plate 2 and the lower shelf 11 are detachably connected.

[0053] Specifically, the support plate 42 and the fixed plate 2 are detachably connected by bolts. At the same time, the fixed plate 2 and the lower frame 11 are also detachably connected by bolts. When the lower pump body 3 needs to be inspected and repaired, the support plate 42 and the fixed plate 2 can be disassembled, and then the fixed plate 2 and the lower frame 11 can be disassembled. In this way, after the fixed plate 2 is removed, the lower pump body 3 can be moved out of the installation channel of the frame 1, which is convenient for inspection and maintenance operations on the lower pump body 3.

[0054] The support plate 42 and the fixing plate 2 as well as the lower frame 11 of the fixing plate 2 may also be connected by snap-fit connections.

[0055] There are four support plates 42 , which are symmetrically arranged on both sides of the lower pump seat 41 in pairs.

[0056] Specifically, there are four support plates 42, which are symmetrically arranged in pairs on both sides of the lower pump seat 41. By setting up four support plates 42, when the support plates 42 are connected to the fixing plate 2, the fixing performance of the lower pump body 3 can be greatly improved, and the working stability of the lower pump body 3 can be improved.

[0057] It also includes a closing rod 5 , which is arranged on the installation channel of the lower shelf 11 .

[0058] The closing rod 5 is detachably connected to the lower shelf 11 .

[0059] Specifically, the closing rod 5 is installed on the lower frame 11 by screws or clips, and the closing rod 5 is located on the outside of the fixing plate 2. Through the setting of the closing rod 5, when the lower pump body 3 needs to be inspected and repaired, the closing rod 5 can be disassembled to form an installation channel, and the lower pump body 3 can be moved out of the frame 1 through the installation channel; when the lower pump body 3 is installed, the lower pump body 3 is moved into the interior of the frame 1, and the closing rod 5 can be installed, which can fix both sides of the installation channel of the lower frame 11, thereby improving the overall stability of the lower frame 11, and further improving the overall stability of the frame 1 when the lower pump body 3 is working.

[0060] It also includes an upper pump body 6 , which is arranged on the upper frame 13 .

[0061] A support beam 7 is provided on the upper frame 13 , and the upper pump body 6 is provided on the support beam 7 .

[0062] Specifically, the frame 1 has a double-layer structure, the lower pump body 3 is installed on the lower frame 11, and the upper pump body 6 is installed on the upper frame 13. In order to improve the stability of the upper pump body 6, a support beam 7 and a lower pump seat are installed between the upper pump body 6 and the upper frame 13.

[0063] Working principle:

[0064] During assembly, install the lower pump body 3 and the lower pump seat 41, adjust the height of the support part 43 so that the movable part 44 is in contact with the ground, push it into the frame 1 through the installation channel, and lift the lower pump body 3 through the auxiliary lifting equipment. At this time, install the fixed plate 2 on the lower frame 11 with bolts, and then lower the pump body 3 with the auxiliary lifting device, and then connect the support plate 42 with the fixed plate 2 with bolts. At this time, install the closing rod 5 on the lower frame 11 to close the installation passage, and finally install the upper pump body 6 on the upper frame 13 to complete the assembly.

[0065] During maintenance, loosen the bolts between the support plate 42 and the fixed plate 2, adjust the height of the support part 43 so that the support part 43 is in contact with the ground, then loosen the bolts between the fixed plate 2 and the closing rod 5 and the lower frame 11, disassemble the fixed plate 2 and the closing rod 5, and then lower the height of the support part 43 so that the moving part 44 is in contact with the ground. At this time, push the lower pump body 3 to drive it to move out of the mounting channel from the frame 1, making it convenient to inspect the lower pump body 3.

[0066] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above are merely preferred embodiments of the present application. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A lower pump detachable vacuum unit structure, characterized in that: include: A frame (1), the frame (1) comprising a lower frame (11), a connecting rod (12) and an upper frame (13), the upper frame (13) being connected to the lower frame (11) via the connecting rod (12), and a mounting channel being provided on one side of the lower frame (11); A fixed plate (2), the fixed plate (2) being arranged on the lower shelf (11); A lower pump body (3), wherein the lower pump body (3) is arranged on the fixing plate (2); A movable assembly (4), wherein the movable assembly (4) is arranged between the fixed plate (2) and the lower pump body (3), and the movable assembly (4) can drive the lower pump body (3) to move out of the lower shelf (11) along the installation channel.

2. The lower pump detachable vacuum unit structure according to claim 1 is characterized in that: The mobile component (4) comprises: a lower pump seat (41), the lower pump body (3) being arranged on the lower pump seat (41); A support plate (42) is provided between the lower pump seat (41) and the fixed plate (2), and each support plate (42) is provided with a support portion (43) and a movable portion (44).

3. The lower pump detachable vacuum unit structure according to claim 2 is characterized in that: The support portion (43) comprises: an adjusting rod (431), the adjusting rod (431) being connected to the supporting plate (42); A bottom plate (432) is provided at the bottom of the adjusting rod (431).

4. The lower pump detachable vacuum unit structure according to claim 3 is characterized in that: The adjusting rod (431) is threadedly connected to the supporting plate (42).

5. The lower pump detachable vacuum unit structure according to claim 4 is characterized in that: The support plate (42) and the fixed plate (2), as well as the fixed plate (2) and the lower shelf (11), are all detachably connected.

6. The lower pump detachable vacuum unit structure according to claim 5, characterized in that: There are four support plates (42), which are symmetrically arranged in pairs on both sides of the lower pump seat (41).

7. The lower pump detachable vacuum unit structure according to claim 1, characterized in that: It also includes a closing rod (5), which is arranged on the installation channel of the lower shelf (11).

8. The lower pump detachable vacuum unit structure according to claim 7, characterized in that: The closing rod (5) and the lower shelf (11) are detachably connected.

9. The lower pump detachable vacuum unit structure according to claim 1, characterized in that: It also includes an upper pump body (6), which is arranged on the upper shelf (13).

10. The lower pump detachable vacuum unit structure according to claim 9, characterized in that: A support beam (7) is provided on the upper frame (13), and the upper pump body (6) is provided on the support beam (7).

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