Vacuum machine and frame structure thereof

Abstract

The application belongs to the technical field of vacuum machines, and discloses a vacuum machine and a frame structure thereof, wherein the frame structure of the vacuum machine comprises a bottom frame, a top plate, a side plate and L-shaped rods, four L-shaped rods are vertically arranged, the inner corner surfaces of the bottom ends of the L-shaped rods are respectively attached to four corner portions of the bottom frame, the inner corner surfaces of the top ends of the four L-shaped rods are respectively attached to four corner portions of the top plate, the two outer edges of the L-shaped rods are provided with first bending portions, the outer peripheral surface of the top plate is provided with a second bending portion, the first bending portion and the second bending portion form a mounting portion for embeddedly mounting the side plate, and the side plate is detachably connected with the first bending portion and / or the second bending portion. The frame structure is simple, easy to assemble and convenient for later maintenance. Meanwhile, the application also provides a vacuum machine with the frame structure, and the vacuum machine has the advantages of small size and light weight.

Description

Technical Field

[0001] This application belongs to the field of vacuum machine technology, specifically a vacuum machine and its frame structure. Background Technology

[0002] A screw vacuum pump is a pumping device that uses a pair of screws to rotate synchronously at high speed in the pump casing to generate suction and exhaust. It is a replacement product for ordinary water ring vacuum pumps, which is highly efficient and energy-saving and can achieve a high ultimate vacuum. It is widely used in domestic pharmaceutical, chemical, semiconductor and other industries with high vacuum requirements.

[0003] Currently, screw vacuum pumps and other types of vacuum pumps are developing towards miniaturization and portability. The miniaturization of screw vacuum pumps and their vacuum units is a product of the close integration of technological advancements and market demands, bringing comprehensive and significant benefits. The most direct benefit is the significant saving of valuable space occupied by the equipment, allowing them to be easily deployed in space-constrained locations, such as modern laboratories, high-standard cleanrooms, and even directly embedded as a core module within large process equipment, thereby optimizing the layout of the entire production line. While successfully achieving miniaturization, vacuum units also need to optimize their assembly and ease of maintenance. Utility Model Content

[0004] The purpose of this application is to solve the above-mentioned problems by providing a vacuum machine and its frame structure. The frame structure of this application is simple, easy to assemble, and improves the convenience of later maintenance. Furthermore, this application also provides a vacuum machine with this frame structure.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A frame structure for a vacuum machine includes a base frame, a top plate, side plates, and L-shaped rods. The top plate is located above the base frame. There are four L-shaped rods, all of which are arranged vertically. The inner corner surfaces of the bottom ends of the four L-shaped rods are respectively attached to the four corners of the base frame, and the inner corner surfaces of the top ends of the four L-shaped rods are respectively attached to the four corners of the top plate. The L-shaped rods are detachably connected to both the top plate and the base plate.

[0007] The L-shaped rod has a first bend at each of its two outer edges. The length of the first bend matches the vertical distance between the top plate and the base frame. The outer circumferential surface of the top plate has a second bend. The length of the second bend matches the distance between two adjacent first bends. The first bend and the second bend form a mounting portion for embedding a side plate. The side plate is detachably connected to the first bend and / or the second bend.

[0008] In the frame structure of the vacuum machine described above, both the first bending section and the second bending section are L-shaped structures. The first arm of the first bending section and the first arm of the second bending section form the sidewall of the mounting section, which is used to restrict the side plate from moving along its length and width directions within the mounting section. The length of the second arm of the second bending section matches the distance between the first arms of two adjacent first bending sections. The second arm of the first bending section and the second arm of the second bending section are used to support the plate surface of the side plate. When the plate surface of the side plate contacts the second arm of the first bending section and the second arm of the second bending section, the side plate is in a vertical state. The side plate is detachably connected to the second arm of the first bending section and / or the second arm of the second bending section.

[0009] In the frame structure of the vacuum machine described above, the second arm of the second bend has multiple first mounting holes, and multiple first nuts are fixed on the back of the second arm of the second bend. The multiple first nuts correspond to the positions of the multiple first mounting holes. The side plate has multiple first through holes penetrating its surface. The multiple first through holes correspond to the positions of the multiple first mounting holes. The first through holes are used for bolts to pass through and connect with the first nuts.

[0010] In the frame structure of the vacuum machine described above, the base frame has a second through hole, which is located in the mounting section. Each mounting section has at least two second through holes. The bottom of the side plate has a connecting post that matches the second through hole, and the side plate is inserted into the second through hole through the connecting post.

[0011] In the frame structure of the vacuum machine described above, the base frame has multiple second mounting holes on its side wall near its corner, the top plate has multiple third mounting holes on its side wall near its corner, and the two ends of the L-shaped rod have multiple third through holes and multiple fourth through holes penetrating its outer and inner corner surfaces, respectively. The number of third through holes on a single L-shaped rod matches the number of multiple second mounting holes near the corner of one of the base frames, and the number of fourth through holes on a single L-shaped rod matches the number of multiple third mounting holes near the corner of one of the top plates.

[0012] Multiple second nuts are fixed to the inner side of the base frame, and each of the multiple second nuts corresponds to a second mounting hole; multiple third nuts are fixed to the inner side of the top plate, and each of the multiple third nuts corresponds to a third mounting hole.

[0013] Meanwhile, this application also provides a vacuum machine, including an oil and gas tank, a screw pump, a cooling mechanism, a control unit, and the frame structure of the vacuum machine as described above. The oil and gas tank and the screw pump are mounted on the base frame. The oil and gas tank has an inlet pipe and an outlet pipe. The outlet pipe extends out from the top plate. The inlet pipe is connected to the outlet end of the screw pump. The inlet end of the screw pump extends out of the top plate through a pipe.

[0014] The cooling mechanism is mounted on the top plate, and the control unit is mounted on one of the side plates. The control unit is connected to the mains power, and both the screw pump and the cooling mechanism are electrically connected to the control unit.

[0015] In the aforementioned vacuum machine, the top plate has a removable cover plate and a removable mesh plate. The cover plate is located above the oil and gas tank, and the mesh plate is located above the cooling mechanism.

[0016] In the aforementioned vacuum machine, there are vent holes on the side plate near the cooling mechanism.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] 1. This application uses an L-shaped bar as the main support beam of the frame, and a first bend is provided at the outer edge of the L-shaped bar, which, together with the second bend of the top plate, forms a side plate mounting part. The side plate can be directly installed on the first bend and / or the second bend, reducing additional connecting parts. Moreover, the embedded installation does not affect the overall aesthetics.

[0019] 2. This application provides a connecting column at the bottom of the side plate, which, together with the first mounting hole on the second arm of the second bend and the second through hole on the base frame, provides top and bottom support for the side plate, ensuring the stability of the side plate installation and also improving the convenience of the side plate installation;

[0020] 3. The L-shaped rod of this application adopts the method of fitting the inner corner surface with the corner of the base frame and the corner of the top plate. It can not only be automatically positioned, but also all connection positions are located on the outside of the overall frame. The L-shaped rod, side plate and top plate and other components can be easily disassembled and assembled. It is small, portable and easy to maintain. Attached Figure Description

[0021] Figure 1 This is a perspective view of the frame structure of the vacuum machine in Example 1 (with side panels removed);

[0022] Figure 2 This is a schematic diagram of the top plate of the frame structure of the vacuum machine in Example 1;

[0023] Figure 3 This is a schematic diagram of the L-shaped rod in the frame structure of the vacuum machine of Example 1;

[0024] Figure 4 This is a schematic diagram of the side plate of the frame structure of the vacuum machine in Example 1;

[0025] Figure 5 This is a perspective view (with side plates) of the frame structure of the vacuum machine in Example 1;

[0026] Figure 6 This is a schematic diagram of the internal structure of the vacuum machine in Example 2;

[0027] The labels for each item are as follows:

[0028] Base frame 1; Top plate 2; Side plate 3; L-shaped rod 4; Oil and gas tank 5; Screw pump 6; Pipeline 7; Cooling mechanism 8; Control unit 9; Second mounting hole 11; Second through hole 12; Second bend 21; Third mounting hole 22; Cover plate 23; Mesh plate 24; First through hole 31; Connecting column 32; First bend 41; Third through hole 42; Fourth through hole 43; Vent hole 44; Inlet pipe 51; Outlet pipe 52; First mounting hole 211. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] Example 1

[0031] refer to Figures 1-5 A frame structure for a vacuum machine includes a base frame 1, a top plate 2, side plates 3, and L-shaped rods 4. The top plate 2 is located above the base frame 1. There are four L-shaped rods 4, all of which are arranged vertically. The inner corner surfaces of the bottom ends of the four L-shaped rods 4 are respectively attached to the four corners of the base frame 1, and the inner corner surfaces of the top ends of the four L-shaped rods 4 are respectively attached to the four corners of the top plate 2. The L-shaped rods 4 are detachably connected to both the top plate 2 and the base plate.

[0032] The L-shaped rod 4 has a first bend 41 at each of its two outer edges. The length of the first bend 41 matches the vertical distance between the top plate 2 and the base frame 1. The outer circumferential surface of the top plate 2 has a second bend 21. The length of the second bend 21 matches the distance between two adjacent first bends 41. The first bend 41 and the second bend 21 form a mounting part for embedding the side plate 3. The side plate 3 is detachably connected to the first bend 41 and / or the second bend 21.

[0033] Regarding the specific structure of the L-shaped rod 4, you can refer to the structure of the angle steel. The two outer edges of the L-shaped rod 4 refer to the two free sides of the L-shaped rod 4. If the L-shaped rod 4 is divided into a horizontal part and a vertical part, then the two outer edges are respectively the side of the horizontal part away from the vertical part and the side of the vertical part away from the horizontal part.

[0034] In this embodiment, the inner corner surfaces of the L-shaped rod 4 are two surfaces forming a 90-degree angle, implicitly meaning that both the base frame 1 and the top plate 2 are rectangular structures.

[0035] Under this design, regarding the assembly of the frame structure, the operator first installs the L-shaped rod 4 on the base frame 1. The inner corner of the L-shaped rod 4 is automatically positioned and detachably connected to the base frame 1 by fitting with the corner of the base frame 1. If it is necessary to install components such as the screw pump 6 and the oil and gas tank 5, they need to be installed on the base frame 1 first. After the L-shaped rod 4 is installed, the top plate 2 is placed on top of the base frame 1, and the inner corner of the L-shaped rod 4 is fitted with the corner of the top plate 2. The L-shaped rod 4 and the corner of the top plate 2 are detachably connected. At this time, the first bending part 41 and the second bending part 21 form the mounting part on the four sides of the frame. The side plate 3 is installed in the mounting part by embedding. The specific installation method can be based on the corresponding installation position on the first bending part 41 or the second bending part 21. The side plate 3 is detachably connected to the first bending part 41 and / or the second bending part 21.

[0036] In a preferred embodiment, the side plate 3 is detachably connected to the first bend 41 and the second bend 21;

[0037] In a specific implementation, the side plate 3 is detachably connected to the second bending portion 21;

[0038] In other embodiments, the side plate 3 is detachably connected to the first bend 41;

[0039] All three methods can be used to fix the side plate 3, and the operator can choose to use the method according to the actual situation.

[0040] In this embodiment, both the first bending portion 41 and the second bending portion 21 are L-shaped structures. The first arm of the first bending portion 41 and the first arm of the second bending portion 21 form the sidewalls of the mounting portion, which are used to restrict the side plate 3 from moving along its length and width directions within the mounting portion. The length of the second arm of the second bending portion 21 matches the distance between the first arms of two adjacent first bending portions 41. The second arms of the first bending portion 41 and the second arms of the second bending portion 21 are used to support the surface of the side plate 3. When the surface of the side plate 3 contacts the second arm of the first bending portion 41 and the second arm of the second bending portion 21, the side plate 3 is in a vertical state. The side plate 3 is detachably connected to the second arm of the first bending portion 41 and / or the second arm of the second bending portion 21.

[0041] Specifically, regarding the first arm and the second arm of the first bending portion 41, the first arm of the first bending portion 41 bends inward toward the frame, and the second arm of the first bending portion 41 bends inward toward the mounting portion; regarding the first arm and the second arm of the second bending portion 21, the first arm of the second bending portion 21 bends inward toward the frame, and the second arm of the second bending portion 21 bends inward toward the mounting portion. Therefore, the distance between the first arms on two adjacent L-shaped rods 4 matches the width of the side plate 3, the distance between the first arm on the second bending portion 21 and the base frame 1 matches the length of the side plate 3, and the second arm of the first bending portion 41 and the second arm of the second bending portion 21 can restrict the side plate 3 from continuing to move inward toward the frame, that is, the width of all the first arms matches the thickness of the side plate 3.

[0042] In other embodiments, the second arms on two adjacent first bends 41 can also be connected to reinforcing rods to enhance the overall stability. If the frame is rectangular, the reinforcing rods are preferably connected to the long side of the rectangle.

[0043] In this embodiment, the second arm of the second bending portion 21 has a plurality of first mounting holes 211, and a plurality of first nuts (not shown in the figure) are fixed on the back of the second arm of the second bending portion 21. The positions of the plurality of first nuts correspond to the positions of the plurality of first mounting holes 211. The side plate 3 has a plurality of first through holes 31 penetrating its surface. The positions of the plurality of first through holes 31 correspond to the positions of the plurality of first mounting holes 211. The first through holes 31 are used for bolts to pass through and connect with the first nuts.

[0044] Specifically, multiple first mounting holes 211 are provided on the second arm of the second bend 21, and multiple first nuts are provided on the corresponding back positions. The first nuts are preferably fixed to the back of the second arm of the second bend 21 by welding. During connection, the side plate 3 can be locked by simply passing the bolt through the first through hole 31 and the first mounting hole 211 in sequence and then screwing it into the first nut. Locks can also be provided on the first through hole 31 and the first mounting hole 211, allowing the side plate 3 to be opened with a dedicated key.

[0045] Preferably, the base frame 1 has a second through hole 12 located in the mounting part, and each mounting part has at least two second through holes 12. The bottom of the side plate 3 has a connecting post 32 that matches the second through hole 12, and the side plate 3 is inserted into the second through hole 12 through the connecting post 32.

[0046] In actual use, a connecting post 32 is set at the bottom of the side plate 3. During installation, the connecting post 32 is first inserted into the second through hole 12 to position the side plate 3. Then, the side plate 3 is swung to make it vertical. At this time, the plate surface of the side plate 3 contacts all the second arms. The operator then makes bolt connections according to the position of the first through hole 31 on the side plate 3.

[0047] In this embodiment, the base frame 1 has a plurality of second mounting holes 11 on its side wall near its corner, the top plate 2 has a plurality of third mounting holes 22 on its side wall near its corner, and the two ends of the L-shaped rod 4 have a plurality of third through holes 42 and a plurality of fourth through holes 43 penetrating its outer corner surface and inner corner surface, respectively. The plurality of third through holes 42 on a single L-shaped rod 4 matches the number of the plurality of second mounting holes 11 near the corner of one of the base frames 1, and the plurality of fourth through holes 43 on a single L-shaped rod 4 matches the number of the plurality of third mounting holes 22 near the corner of one of the top plates 2.

[0048] Multiple second nuts (not shown in the figure) are fixed on the inner side of the base frame 1, and the multiple second nuts correspond one-to-one with the second mounting holes 11; multiple third nuts are fixed on the inner side of the top plate 2, and the multiple third nuts correspond one-to-one with the third mounting holes 22.

[0049] Specifically, the connection method of the second mounting hole 11, the second through hole 12, and the third mounting hole 22 and the third through hole 42 is the same as that of the first mounting hole 211 and the first through hole 31, all of which are bolted connections. The second nut is preferably welded to the inner side of the base frame 1, and the third nut is preferably welded to the inner side of the top plate 2.

[0050] In a preferred embodiment, the first mounting hole 211, the second mounting hole 11, and the third mounting hole 22 have the same diameter, the first through hole 31, the second through hole 12, and the third through hole 42 also have the same diameter, and the first nut, the second nut, and the third nut have the same size, thus standardizing the bolts.

[0051] Example 2

[0052] refer to Figure 6 A vacuum machine includes an oil and gas tank 5, a screw pump 6, a cooling mechanism 8, a control unit 9, and a frame structure of the vacuum machine as described in Embodiment 1. The oil and gas tank 5 and the screw pump 6 are mounted on a base frame 1. The oil and gas tank 5 has an inlet pipe 51 and an outlet pipe 52. The outlet pipe 52 extends out from the top plate 2. The inlet pipe 51 is connected to the outlet end of the screw pump 6. The inlet end of the screw pump 6 extends out of the top plate 2 through a pipe 7.

[0053] The cooling mechanism 8 is mounted on the top plate 2, and the control unit 9 is mounted on one of the side plates 3. The control unit 9 is connected to the mains power, and the screw pump 6 and the cooling mechanism 8 are both electrically connected to the control unit 9.

[0054] In this embodiment, the oil and gas tank 5, screw pump 6, and cooling mechanism 8 are all existing technologies in the art. Specific details can be found in the technical solution disclosed in Chinese Patent CN217582490U. The oil and gas tank 5 corresponds to the oil and gas container in this embodiment, the screw pump 6 corresponds to the screw vacuum integrated machine in this embodiment, and the cooling mechanism 8 corresponds to the temperature control component in this embodiment. Regarding the installation method, all components can be installed using bolts and nuts. Studs can be welded to corresponding positions on the top plate 2 and the base frame 1, and then tightened with nuts. The control unit 9 can be a PLC system well-known to those skilled in the art, used to control the start / stop and speed of the screw pump 6 and the temperature control of the cooling mechanism 8. If necessary, it can also adjust the inlet pipe 51, outlet pipe 52, and valves on the pipeline.

[0055] Preferably, the top plate 2 has a removable cover plate 23 and a removable mesh plate 24, with the cover plate 23 located above the oil and gas tank 5 and the mesh plate 24 located above the cooling mechanism 8.

[0056] Specifically, the mesh plate 24 is used for venting the cooling mechanism 8, serving a protective and dustproof function, while the cover plate 23 facilitates the installation, inspection, and maintenance of the oil and gas tank 5. The removable mechanism can be achieved through screw connections. Furthermore, the side plate 3 near the cooling mechanism 8 has vent holes 44. These vent holes 44 allow external air to enter the frame.

[0057] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements or modifications can be made without departing from the principle of this application, and these improvements or modifications should also be considered within the scope of protection of this application.

Claims

1. A frame structure for a vacuum machine, comprising a base frame, a top plate, side plates, and an L-shaped rod, characterized in that, The top plate is located above the base frame. There are four L-shaped rods, all of which are arranged vertically. The inner corners of the bottom ends of the four L-shaped rods are respectively attached to the four corners of the base frame, and the inner corners of the top ends of the four L-shaped rods are respectively attached to the four corners of the top plate. The L-shaped rods are detachably connected to both the top plate and the base plate. The L-shaped rod has a first bend at each of its two outer edges. The length of the first bend matches the vertical distance between the top plate and the base frame. The outer circumferential surface of the top plate has a second bend. The length of the second bend matches the distance between two adjacent first bends. The first bend and the second bend form a mounting portion for embedding the side plate. The side plate is detachably connected to the first bend and / or the second bend.

2. The frame structure of the vacuum machine according to claim 1, characterized in that, Both the first bend and the second bend are L-shaped structures. The first arm of the first bend and the first arm of the second bend form the sidewall of the mounting part, which is used to restrict the side plate from moving along its length and width directions within the mounting part. The length of the second arm of the second bend matches the distance between the first arms of two adjacent first bends. The second arms of the first bend and the second arms of the second bend support the surface of the side plate. When the surface of the side plate contacts the second arms of the first bend and the second arms of the second bend, the side plate is in a vertical state. The side plate is detachably connected to the second arms of the first bend and / or the second arms of the second bend.

3. The frame structure of the vacuum machine according to claim 2, characterized in that, The second arm of the second bend has a plurality of first mounting holes, and a plurality of first nuts are fixed on the back of the second arm of the second bend. The plurality of first nuts correspond to the positions of the plurality of first mounting holes. The side plate has a plurality of first through holes penetrating its surface. The plurality of first through holes correspond to the positions of the plurality of first mounting holes. The first through holes are used for bolts to pass through and connect with the first nuts.

4. The frame structure of the vacuum machine according to claim 3, characterized in that, The base frame has a second through hole located within the mounting portion. Each mounting portion has at least two second through holes. The bottom of the side plate has a connecting post that matches the second through hole. The side plate is inserted into the second through hole via the connecting post.

5. The frame structure of the vacuum machine according to claim 1, characterized in that, The base frame has multiple second mounting holes on its side wall near its corner, and the top plate has multiple third mounting holes on its side wall near its corner. The two ends of the L-shaped rod have multiple third through holes and multiple fourth through holes penetrating its outer and inner corner surfaces, respectively. The number of the multiple third through holes on a single L-shaped rod matches the number of the multiple second mounting holes near the corner of one of the base frames, and the number of the multiple fourth through holes on a single L-shaped rod matches the number of the multiple third mounting holes near the corner of one of the top plates. The inner side of the base frame is fixed with a plurality of second nuts, each of which corresponds to a second mounting hole; the inner side of the top plate is fixed with a plurality of third nuts, each of which corresponds to a third mounting hole.

6. A vacuum machine, characterized in that, The system includes an oil and gas tank, a screw pump, a cooling mechanism, a control unit, and a frame structure for a vacuum machine as described in any one of claims 1 to 5. The oil and gas tank and the screw pump are mounted on the base frame. The oil and gas tank has an inlet pipe and an outlet pipe. The outlet pipe extends out from the top plate. The inlet pipe is connected to the outlet end of the screw pump. The inlet end of the screw pump extends out of the top plate through a pipe. The cooling mechanism is mounted on the top plate, the control unit is mounted on one of the side plates, the control unit is connected to the mains power, and both the screw pump and the cooling mechanism are electrically connected to the control unit.

7. The vacuum machine according to claim 6, characterized in that, The top plate has a removable cover plate and a removable mesh plate, the cover plate being located above the oil and gas tank and the mesh plate being located above the cooling mechanism.

8. The vacuum machine according to claim 6, characterized in that, The side plate near the cooling mechanism has vent holes.

Images