Portable vacuum machine food vacuum air pump

Abstract

The invention discloses a portable vacuum machine food vacuum air pump, and belongs to the technical field of vacuum air pumps, by arranging a shell I, a shell II, a connecting plate and an elastic clamping plate, the shell II is controlled to cover the surface of an air pump main body in the shell I, and the air pump main body is clamped and fixed in the shell I and the shell II; meanwhile, positioning protruding blocks on the surface of the mounting ring are clamped into corresponding second rectangular clamping grooves in the surface of the second shell, it is ensured that the control end cover is fixed between the first shell and the second shell and does not deflect, and then connecting plates are correspondingly clamped into first rectangular grooves and second rectangular grooves; elastic clamping plates at the two ends of a connecting plate are clamped into corresponding first fixing clamping grooves and second fixing clamping grooves, it is ensured that positioning clamping holes in the surface of the connecting plate are clamped in the surfaces of corresponding first positioning clamping blocks and second positioning clamping blocks, and therefore the first shell and the second shell are combined and connected, and the first shell and the second shell are conveniently and detachably connected; and the air extracting pump main body is overhauled and maintained.

Description

Technical Field

[0001] The present invention belongs to the technical field of vacuum pumps, and specifically relates to a portable vacuum machine food vacuum pump. Background Art

[0002] In an oxygen-deficient environment, the activities of microorganisms in food are inhibited, the oxidation and spoilage processes are slowed down, and at the same time, it can also prevent food from absorbing strange smells and getting damp. A food vacuum pump is often used to extract the air inside the food packaging bag to make the inside of the packaging bag reach a vacuum state, thereby extending the shelf life of the food inside the packaging bag and preventing the food from oxidizing and mildewing.

[0003] When assembling the existing portable vacuum machine food vacuum pump, generally multiple bolts are required to connect and combine the outer shell. When the pump malfunctions after long-term use, multiple sets of bolts need to be turned to disassemble the outer shell from the surface of the pump. The disassembly and installation are relatively complex and cumbersome, and it takes a long time. Therefore, improvements are needed. Summary of the Invention

[0004] In order to overcome the above defects, the present invention provides a portable vacuum machine food vacuum pump, which solves the problem that the existing portable vacuum machine food vacuum pump uses multiple bolts to connect and combine the outer shell. When the pump malfunctions after long-term use, multiple sets of bolts need to be turned to disassemble the outer shell from the surface of the pump, and the disassembly and installation are relatively complex and cumbersome.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A portable vacuum machine food vacuum pump, including a first housing, a second housing is provided on one side of the first housing, an air pump main body is provided inside between the first housing and the second housing, a control end cover is provided at the top of the air pump main body between the first housing and the second housing, and the control end cover and the air pump main body are electrically connected by a wire. Connecting plates are symmetrically provided on both sides of the first housing and the second housing respectively, and the first housing and the second housing are clamped and fixed on the surface of the air pump main body through the connecting plates. An air extraction joint is provided at the bottom between the first housing and the second housing.

[0006] As a further solution of the present invention: Multiple sets of first rib plates are equidistantly and fixedly installed at the top of the inner wall of the first housing, a first rectangular card slot is provided at the top of the surface of the first housing, first rectangular grooves are symmetrically provided on both sides of the surface of the first housing, first fixed card slots are symmetrically provided at both ends of the first rectangular groove, and four first positioning blocks are equidistantly and fixedly installed inside the first rectangular groove.

[0007] As a further solution of the present invention: A first retaining ring is fixedly installed at the bottom of the inner wall of the first housing, two first positioning columns are symmetrically and fixedly installed at the bottom of the first retaining ring, a first slot is provided at the bottom of the inner wall of the first housing where the first retaining ring is located, and two first arc-shaped card slots are provided on the inner wall of the first slot.

[0008] As a further solution of the present invention: a plurality of second rib plates are fixedly installed at equal intervals on the top of the inner wall of the second housing, and the positions of the second rib plates correspond to those of the first rib plates. A second rectangular card slot is provided at the top of the surface of the second housing, and the position of the second rectangular card slot corresponds to that of the first rectangular card slot. Two rectangular slots are provided on both sides of the surface of the second housing, and the positions of the two rectangular slots correspond to those of the first rectangular slots. Fixed card slots two are respectively provided at both ends of the two rectangular slots. Four positioning blocks two are fixedly installed at equal intervals inside the two rectangular slots.

[0009] As a further solution of the present invention: a battery is provided on the surface of the second housing, and a protective cover plate is inlaid on the surface of the second housing where the battery is located. A second retaining ring is fixedly installed at the bottom of the inner wall of the second housing. Two positioning columns two are symmetrically fixedly installed at the bottom of the second retaining ring. A second slot is provided inside the second housing at the bottom of the second retaining ring. Two arc-shaped card slots two are provided on the inner wall of the second slot, and the positions of the arc-shaped card slots two correspond to those of the arc-shaped card slots one.

[0010] As a further solution of the present invention: the connecting plate has the same shape as the first rectangular slot and the second rectangular slot. Two elastic clamping plates are symmetrically fixedly installed at both ends of the connecting plate, and the positions of the elastic clamping plates correspond to those of the first fixed card slot and the second fixed card slot. A plurality of positioning card holes are provided at equal intervals on the surface of the connecting plate. The positioning card holes correspond to and have the same shape as the first positioning block and the second positioning block.

[0011] As a further solution of the present invention: a control main board is provided at the bottom of the control end cover, and the control end cover is electrically connected to the battery through a wire. A control button is provided at the top of the control end cover. An installation ring is fixedly installed at the bottom of the control end cover. Two positioning convex blocks are symmetrically fixedly installed on both sides of the surface of the installation ring. The positioning convex blocks correspond to and have the same shape as the first rectangular card slot and the second rectangular card slot. Exhaust slots are symmetrically provided on both sides of the top of the control end cover where the control button is located.

[0012] As a further solution of the present invention: a connecting ring is fixedly installed at the top of the air extraction joint. Two fixed clamping rings are fixedly installed on the surface of the connecting ring, and the positions of the fixed clamping rings correspond to those of the arc-shaped card slot one and the arc-shaped card slot two. Four positioning holes are provided at equal angles on the top of the connecting ring. The positioning holes correspond to the positions of the first positioning column and the second positioning column. A fixed ring is fixedly installed on the surface of the connecting ring at the top of the air extraction joint.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. In the present invention, by providing a housing one, a housing two, a connecting plate and an elastic clamping plate, the air extraction pump main body is clamped into the interior of the housing one. After the positioning protrusions on the surface of the mounting ring are clamped into the corresponding rectangular clamping grooves one on the surface of the housing one, the housing two is controlled to cover the surface of the air extraction pump main body inside the housing one, and the air extraction pump main body is tightly clamped and fixed inside the housing one and the housing two. At the same time, the positioning protrusions on the surface of the mounting ring are clamped into the corresponding rectangular clamping grooves two on the surface of the housing two, ensuring that the control end cover is fixed between the housing one and the housing two without deflection. Then, the connecting plate is correspondingly clamped into the rectangular groove one and the rectangular groove two, and the elastic clamping plates at both ends of the connecting plate are clamped into the corresponding fixed clamping grooves one and fixed clamping grooves two, ensuring that the positioning clamping holes on the surface of the connecting plate are clamped on the surfaces of the corresponding positioning clamping blocks one and positioning clamping blocks two, thereby combining and connecting the housing one and the housing two, facilitating the disassembly and connection of the housing one and the housing two, and performing maintenance on the air extraction pump main body.

[0015] 2. In the present invention, by providing a slot one, a slot two, a connecting ring, a fixed clamping ring and a positioning hole, after the housing one and the housing two are connected and fixed, an air extraction joint of a suitable size is selected according to the size of the food bag interface. The connecting ring at the top of the air extraction joint is inserted into the slot one and the slot two at the bottom of the housing one and the housing two, so that the positioning hole at the top of the connecting ring is clamped on the surfaces of the corresponding positioning columns one and positioning columns two at the bottom of the retaining ring one and the retaining ring two. At the same time, the fixed clamping ring on the surface of the connecting ring is clamped into the corresponding arc-shaped clamping grooves one and arc-shaped clamping grooves two on the inner walls of the slot one and the slot two, thereby facilitating the replacement of the corresponding air extraction interface according to the specifications of the food bag interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exploded structural schematic diagram of the present invention;

[0017] Figure 2 is a structural schematic diagram of the housing one of the present invention;

[0018] Figure 3 is an exploded structural schematic diagram of the housing two of the present invention;

[0019] Figure 4 is a structural schematic diagram of the connecting plate of the present invention;

[0020] Figure 5 is a structural schematic diagram of the control end cover and the mounting ring of the present invention;

[0021] Figure 6 is a cross-sectional structural schematic diagram of the air extraction joint and the connecting ring of the present invention;

[0022] In the figure: 1. Housing 1; 101. Rib plate 1; 102. Rectangular card slot 1; 103. Rectangular slot 1; 104. Fixed card slot 1; 105. Positioning block 1; 106. Retaining ring 1; 107. Positioning post 1; 108. Slot 1; 109. Arc-shaped card slot 1; 2. Housing 2; 201. Rib plate 2; 202. Rectangular card slot 2; 203. Rectangular slot 2; 204. Fixed card slot 2; 205. Positioning block 2; 206. Battery; 207. Protective cover plate; 208. Retaining ring 2; 209. Positioning post 2; 210. Slot 2; 211. Arc-shaped card slot 2; 3. Connecting plate; 301. Elastic card plate; 302. Positioning card hole; 4. Control end cover; 401. Control button; 402. Mounting ring; 403. Positioning convex block; 404. Exhaust slot; 5. Main body of the air extraction pump; 6. Air extraction joint; 601. Connecting ring; 602. Fixed clamping ring; 603. Positioning hole; 604. Fixed ring. Specific embodiments

[0023] The technical solution of the present application will be further described in detail below in conjunction with specific embodiments.

[0024] As Figure 1-6 shown, the present invention provides a technical solution: a portable vacuum machine food vacuum air extraction pump, including a housing 1, a plurality of groups of rib plates 101 are fixedly installed at equal intervals on the top of the inner wall of the housing 1, a housing 2 is provided on one side of the housing 1, and a plurality of groups of rib plates 201 are fixedly installed at equal intervals on the top of the inner wall of the housing 2, and the rib plates 201 correspond to the positions of the rib plates 101. By providing the rib plates 101 and the rib plates 201, when the main body 5 of the air extraction pump is clamped inside the housing 1 and the housing 2, the rib plates 101 and the rib plates 201 support the main body 5 of the air extraction pump, ensuring that the main body 5 of the air extraction pump will not shake when clamped between the housing 1 and the housing 2;

[0025] A rectangular card slot 102 is provided at the top of the surface of the housing 1, a rectangular card slot 202 is provided at the top of the surface of the housing 2, and the rectangular card slot 202 corresponds to the position of the rectangular card slot 102. Connecting plates 3 are symmetrically provided on both sides of the housing 1 and the housing 2, and the housing 1 and the housing 2 are clamped and fixed on the surface of the main body 5 of the air extraction pump through the connecting plates 3. A mounting ring 402 is fixedly installed at the bottom of the control end cover 4, and positioning convex blocks 403 are symmetrically fixedly installed on both sides of the surface of the mounting ring 402. The positioning convex blocks 403 correspond to the positions of the rectangular card slot 102 and the rectangular card slot 202 and have the same shape. Due to the provision of the rectangular card slot 102 and the rectangular card slot 202, when the mounting ring 402 is clamped between the housing 1 and the housing 2, the positioning convex blocks 403 on the surface of the mounting ring 402 are inserted into the corresponding rectangular card slot 102 and the rectangular card slot 202, ensuring that the mounting ring 402 will not rotate randomly when clamped between the housing 1 and the housing 2.

[0026] On both sides of the surface of the first housing 1, rectangular grooves 103 are symmetrically provided. At both ends of the first rectangular groove 103, fixing clamping grooves 104 are symmetrically provided. On both sides of the surface of the second housing 2, rectangular grooves 203 are provided, and the positions of the rectangular grooves 203 correspond to those of the first rectangular grooves 103. At both ends of the second rectangular groove 203, fixing clamping grooves 204 are respectively provided. The connecting plate 3 has the same shape as the first rectangular groove 103 and the second rectangular groove 203. Due to the presence of the first rectangular groove 103 and the second rectangular groove 203, positions are provided for the installation of the connecting plate 3, ensuring that when the connecting plate 3 is clamped on the surfaces of the first housing 1 and the second housing 2, it will not warp, affecting the feel when holding the first housing 1 and the second housing 2;

[0027] At both ends of the connecting plate 3, elastic clamping plates 301 are symmetrically and fixedly installed, and the positions of the elastic clamping plates 301 correspond to those of the first fixing clamping grooves 104 and the second fixing clamping grooves 204. By providing the elastic clamping plates 301, the elastic clamping plates 301 are bent and snapped into the corresponding first fixing clamping grooves 104 and second fixing clamping grooves 204, thereby clamping the connecting plate 3 inside the corresponding first rectangular groove 103 and second rectangular groove 203.

[0028] Inside the first rectangular groove 103, four groups of positioning blocks 105 are fixedly installed at equal intervals. Inside the second rectangular groove 203, four groups of positioning blocks 205 are fixedly installed at equal intervals. On the surface of the connecting plate 3, multiple groups of positioning holes 302 are provided at equal intervals. The positions of the positioning holes 302 correspond to those of the positioning blocks 105 and the positioning blocks 205 and have the same shape. Due to the presence of the positioning blocks 105 and the positioning blocks 205, when the connecting plate 3 is clamped inside the first rectangular groove 103 and the second rectangular groove 203, the positioning holes 302 are clamped on the surfaces of the corresponding positioning blocks 105 and the positioning blocks 205, thereby connecting and fixing the first housing 1 and the second housing 2.

[0029] At the bottom of the inner wall of the first housing 1, a first retaining ring 106 is fixedly installed. At the bottom of the inner wall of the second housing 2, a second retaining ring 208 is fixedly installed. Due to the presence of the first retaining ring 106 and the second retaining ring 208, the main body of the air pump 5 is clamped inside the first housing 1 and the second housing 2 and rests on the tops of the first retaining ring 106 and the second retaining ring 208, ensuring that the main body of the air pump 5 will not drop and shake when clamped inside the first housing 1 and the second housing 2;

[0030] At the bottom of the first retaining ring 106, two groups of positioning columns 107 are symmetrically and fixedly installed. At the bottom of the second retaining ring 208, positioning columns 209 are symmetrically and fixedly installed. At equal angles on the top of the connecting ring 601, four groups of positioning holes 603 are provided. The positions of the positioning holes 603 correspond to those of the positioning columns 107 and the positioning columns 209. By providing the positioning columns 107 and the positioning columns 209, when the positioning holes 603 are clamped on the surfaces of the corresponding positioning columns 107 and the positioning columns 209, it is ensured that when the connecting ring 601 is clamped inside the first slot 108 and the second slot 210, it will not deflect and shake.

[0031] On the inner wall of the first housing 1 at the bottom of the first retaining ring 106, there is a first slot 108, and on the inner wall of the first slot 108, there are two groups of arc-shaped clamping grooves 109. Inside the second housing 2 at the bottom of the second retaining ring 208, there is a second slot 210, and on the inner wall of the second slot 210, there are two groups of arc-shaped clamping grooves 211, and the positions of the arc-shaped clamping grooves 211 correspond to those of the arc-shaped clamping grooves 109. On the surface of the connecting ring 601, two fixing clamping rings 602 are fixedly installed, and the positions of the fixing clamping rings 602 correspond to those of the arc-shaped clamping grooves 109 and the arc-shaped clamping grooves 211. Due to the presence of the fixing clamping rings 602, when the connecting ring 601 is inserted into the first slot 108 and the second slot 210, the fixing clamping rings 602 are snapped into the corresponding arc-shaped clamping grooves 109 and arc-shaped clamping grooves 211, thereby clamping and fixing the connecting ring 601 inside the first slot 108 and the second slot 210;

[0032] On the surface of the second housing 2, there is a battery 206, and on the surface of the second housing 2 where the battery 206 is located, a protective cover plate 207 is inlaid. Due to the presence of the protective cover plate 207, after the battery 206 is snapped into the surface of the second housing 2, the protective cover plate 207 is covered and fixed on the surface of the second housing 2, thereby shielding and protecting the battery 206.

[0033] Inside the space between the first housing 1 and the second housing 2, there is an air extraction pump main body 5. On the top of the air extraction pump main body 5 between the first housing 1 and the second housing 2, there is a control end cover 4, and the control end cover 4 and the air extraction pump main body 5 are electrically connected through a wire. At the bottom of the control end cover 4, there is a control main board, and the control end cover 4 and the battery 206 are electrically connected through a wire. On the top of the control end cover 4, there is a control button 401. On both sides of the control button 401 on the top of the control end cover 4, there are symmetrically arranged exhaust slots 404. Through the provision of the exhaust slots 404, the air extraction pump main body 5 extracts the air inside the food bag inside the first housing 1 and the second housing 2, and the extracted air is discharged through the exhaust slots 404, preventing the pressure inside the first housing 1 and the second housing 2 from being too high and causing the first housing 1 and the second housing 2 to rupture.

[0034] At the bottom between the first housing 1 and the second housing 2, there is an air extraction joint 6. On the top of the air extraction joint 6, a connecting ring 601 is fixedly installed, and on the surface of the connecting ring 601 on the top of the air extraction joint 6, a fixing ring 604 is fixedly installed. Due to the presence of the fixing ring 604, after the air extraction joint 6 is clamped at the bottom of the first housing 1 and the second housing 2, the fixing ring 604 is clamped on the surface of the first housing 1 and the second housing 2. While clamping and fixing the first housing 1 and the second housing 2, it reduces the air leakage at the connection position between the air extraction joint 6 and the first housing 1 and the second housing 2.

[0035] The working principle of the present invention is:

[0036] After horizontally placing the first housing 1 on the tabletop, place the air pump main body 5 correspondingly inside the first housing 1, such that the surface of the air pump main body 5 lies on the inside of the first rib plate 101. At the same time, one side of the air pump main body 5 is closely attached to one side of the first retaining ring 106. Then, snap the control end cap 4 into the inside of the first housing 1 at one end of the air pump main body 5, such that the positioning protrusion 403 on the surface of the mounting ring 402 installed on one side of the control end cap 4 snaps into the corresponding first rectangular card slot 102. Next, correspondingly cover the second housing 2 on the surface of the first housing 1, such that the second rib plate 201 inside the second housing 2 is closely attached to the surface of the air pump main body 5, and the second retaining ring 208 is closely attached to one end of the air pump main body 5. At the same time, the second rectangular card slot 202 is stuck on the surface of the corresponding positioning protrusion 403 on the surface of the mounting ring 402, ensuring that the positions of the first rectangular slot 103 and the second rectangular slot 203 correspond to each other. Bend the elastic clamping plates 301 at both ends of the connecting plate 3, and snap the connecting plate 3 into the corresponding first rectangular slot 103 and the second rectangular slot 203, such that the elastic clamping plates 301 snap into the corresponding first fixed card slot 104 and the second fixed card slot 204, and the positioning card holes 302 on the surface of the connecting plate 3 are stuck on the surfaces of the corresponding first positioning card block 105 and the second positioning card block 205, thereby connecting and fixing the first housing 1 and the second housing 2 on the surface of the air pump main body 5;

[0037] Select a suitable air extraction joint 6 according to the size of the air extraction interface of the food bag. Correspondingly snap the connecting ring 601 into the first slot 108 and the second slot 210 at one end of the first housing 1 and the second housing 2 away from the control end cap 4. Adjust the position of the connecting ring 601 inside the first slot 108 and the second slot 210, such that the positioning holes 603 on the surface of the connecting ring 601 are stuck on the surfaces of the corresponding first positioning post 107 and the second positioning post 209. At the same time, the fixing ring 604 on the surface of the connecting ring 601 snaps into the corresponding first arc-shaped card slot 109 and the second arc-shaped card slot 211, thereby clamping and fixing the air extraction joint 6 at one end of the first housing 1 and the second housing 2. Cover the air extraction joint 6 on the surface of the air extraction interface of the food bag, and press the control button 401 to control the air pump main body 5 to start air extraction, thereby performing vacuum air extraction on the food bag.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present invention.

[0039] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0040] In the present invention, unless otherwise clearly specified and defined, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one solution", "some solutions", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the solution or example are included in at least one solution or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same solution or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more solutions or examples in a suitable manner.

Claims

1. A portable vacuum food vacuum pump, comprising a housing (1), characterized in that: A shell body (2) is provided on one side of the shell body (1), and an air pump body (5) is provided inside the shell body (1) and the shell body (2). A control end cover (4) is provided between the shell body (1) and the shell body (2) at the top of the air pump body (5), and the control end cover (4) and the air pump body (5) are electrically connected through a wire. Connecting plates (3) are symmetrically provided on both sides of the shell body (1) and the shell body (2), and the shell body (1) and the shell body (2) are clamped and fixed on the surface of the air pump body (5) through the connecting plates (3). An air extraction joint (6) is provided at the bottom between the shell body (1) and the shell body (2).

2. The portable vacuum food vacuum pump according to claim 1, characterized in that: A plurality of groups of rib plates (101) are fixedly installed at equal intervals on the top of the inner wall of the shell (1), a rectangular slot (102) is provided on the top of the surface of the shell (1), rectangular slots (103) are symmetrically provided on both sides of the surface of the shell (1), fixed slots (104) are symmetrically provided at both ends of the rectangular slot (103), and four groups of positioning blocks (105) are fixedly installed at equal intervals inside the rectangular slot (103).

3. The portable vacuum food vacuum pump according to claim 2, characterized in that: A retaining ring (106) is fixedly mounted on the bottom of the inner wall of the shell (1), and two groups of positioning columns (107) are symmetrically fixedly mounted on the bottom of the retaining ring (106). A slot (108) is provided on the inner wall of the shell (1) at the bottom of the retaining ring (106), and two groups of arc-shaped slots (109) are provided on the inner wall of the slot (108).

4. The portable vacuum food vacuum pump according to claim 3, characterized in that: A plurality of groups of rib plates (201) are fixedly installed at equal intervals on the top of the inner wall of the shell (2), and the positions of the rib plates (201) and the rib plates (101) correspond to each other; a rectangular card slot (202) is provided on the top of the surface of the shell (2), and the positions of the rectangular card slot (202) and the rectangular card slot (102) correspond to each other; rectangular grooves (203) are provided on both sides of the surface of the shell (2), and the positions of the rectangular grooves (203) and the rectangular grooves (103) correspond to each other; fixed card slots (204) are respectively provided at both ends of the rectangular grooves (203), and four groups of positioning card blocks (205) are fixedly installed at equal intervals inside the rectangular grooves (203).

5. The portable vacuum food vacuum pump according to claim 4, characterized in that: A battery (206) is provided on the surface of the second shell (2), and a protective cover plate (207) is inlaid on the surface of the battery (206) of the second shell (2), a retaining ring (208) is fixedly installed at the bottom of the inner wall of the second shell (2), and a positioning column (209) is symmetrically fixedly installed at the bottom of the retaining ring (208), and a slot (210) is provided inside the second shell (2) at the bottom of the retaining ring (208), and two groups of arc-shaped slots (211) are provided on the inner wall of the slot (210), and the position of the arc-shaped slot (211) corresponds to that of the arc-shaped slot (109).

6. The portable vacuum food vacuum pump according to claim 5, characterized in that: The connecting plate (3) has the same shape as the rectangular groove 1 (103) and the rectangular groove 2 (203); elastic clamping plates (301) are symmetrically fixedly installed at both ends of the connecting plate (3); and the positions of the elastic clamping plates (301) and the fixed clamping groove 1 (104) and the fixed clamping groove 2 (204) correspond; and a plurality of groups of positioning clamping holes (302) are equidistantly arranged on the surface of the connecting plate (3); and the positioning clamping holes (302) correspond to the positions of the positioning clamping block 1 (105) and the positioning clamping block 2 (205) and have the same shape.

7. The portable vacuum food vacuum pump according to claim 5, characterized in that: A control main board is provided at the bottom of the control end cover (4), and the control end cover (4) is electrically connected to the battery (206) via a wire. A control button (401) is provided at the top of the control end cover (4). A mounting ring (402) is fixedly mounted at the bottom of the control end cover (4), and positioning protrusions (403) are symmetrically fixedly mounted on both sides of the surface of the mounting ring (402). The positioning protrusions (403) correspond to the positions of the rectangular card slot 1 (102) and the rectangular card slot 2 (202) and have the same shape. Exhaust slots (404) are symmetrically provided on both sides of the control button (401) at the top of the control end cover (4).

8. The portable vacuum food vacuum pump according to claim 5, characterized in that: A connecting ring (601) is fixedly installed on the top of the air extraction joint (6), and two groups of fixed snap rings (602) are fixedly installed on the surface of the connecting ring (601), and the fixed snap rings (602) correspond to the positions of the arc-shaped snap groove 1 (109) and the arc-shaped snap groove 2 (211). Four groups of positioning holes (603) are provided at equal angles on the top of the connecting ring (601), and the positioning holes (603) correspond to the positions of the positioning column 1 (107) and the positioning column 2 (209). A fixing ring (604) is fixedly installed on the surface of the connecting ring (601) at the top of the air extraction joint (6).

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