Air pump with high adaptability

Abstract

The utility model relates to an air pump with high adaptability, which comprises a shell, a motor and an impeller, the shell comprises an air outlet hole at the top and an air exhaust hole at the bottom, the motor is fixedly connected with the impeller and is positioned at the bottom inside the shell, the shell is provided with an air exhaust section in a protruding manner, and the air pump also comprises an air tap, the shell comprises a mounting part at the top and a matching part at the bottom, the impeller comprises a fixing part, the fixing part is located between the mounting part and the matching part and detachably connected with the mounting part, the matching part is detachably connected with the mounting part, and the air tap further comprises a first limiting ring and a second limiting ring; the air nozzle is inserted into the matching part, the bottom of the first limiting ring abuts against the matching part, and the upper end face of the second limiting ring abuts against the air exhaust section. By the adoption of the scheme, the air pump high in adaptability is provided, and after the installation part and the fixing part are disassembled and assembled, the air nozzle can be assembled or disassembled, so that the air pump is matched with inflation holes of different diameters.

Description

Technical Field

[0001] The utility model relates to an air pump, in particular to an air pump with high adaptability. Background Art

[0002] An air pump is a gas delivery device that can continuously form a pressure difference between the inlet and outlet. Its main working principle is based on the motor drive, which in turn drives the impeller to change the gas pressure in the cavity and achieve air extraction.

[0003] When the existing air pump realizes air extraction, the air extraction holes on the shell are aligned with the air extraction port on the bag body, and then the switch is pressed to start the motor to realize air extraction. However, since the diameters of the air extraction ports of different bag bodies are different, when the air extraction holes are directly mounted on the air extraction ports, the air extraction holes mounted on the air extraction ports may shake relative to the air extraction ports and cannot stably extract air because the diameter of the air extraction holes is larger than the air extraction ports. Therefore, how to achieve the alignment and adaptation of the air extraction holes of the air pump with air extraction ports of more specifications to realize stable air extraction has become a problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an air pump with high adaptability, which can be adapted to inflation holes of different diameters by disassembling and assembling a mounting portion and then installing or removing an air nozzle.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: the shell is composed of a shell, a motor and an impeller, the shell comprising an air outlet at the top and an air suction hole at the bottom, the motor is fixedly connected to the impeller and is located in the shell, an air suction section is protrudingly provided at the bottom of the shell, and also includes an air nozzle, the shell comprises a mounting portion at the top and a matching portion at the bottom, the impeller comprises a fixing portion, the fixing portion is located between the mounting portion and the matching portion and is detachably connected to the mounting portion, the matching portion is detachably connected to the mounting portion, the air nozzle also includes a first limiting ring and a second limiting ring, the air nozzle is inserted in the matching portion and the bottom of the first limiting ring is abutted against the matching portion, and the upper end face of the second limiting ring is abutted against the air suction section, a plurality of limiting blocks are arranged at intervals along the circumferential direction in the matching portion, and the first limiting ring is provided with limiting slots corresponding to each limiting block.

[0006] The utility model is further configured as follows: each of the limit plug blocks is configured in a step-shaped manner with a narrow upper portion and a wide lower portion.

[0007] The utility model is further configured as follows: the second limiting ring is configured to be tapered from top to bottom, and a deformation groove is configured at the upper end of the second limiting ring.

[0008] The utility model is further configured as follows: it also includes a plurality of connecting bolts, the fixing portion is provided with a through hole corresponding to each connecting bolt, the mounting portion is provided with a screw hole corresponding to each through hole, each connecting bolt is respectively inserted into one of the through holes and is threadedly matched with the corresponding screw hole.

[0009] The utility model is further configured as follows: a disassembly block is provided on the outer side of each through hole on the matching portion, the fixed portion is provided with a disassembly slot corresponding to each disassembly slot, each of the disassembly slots is recessed inwardly and provided with a matching slot, each matching slot is arranged in a ring shape, and the fixed portion is provided with a matching block in each disassembly slot.

[0010] The utility model is further configured as follows: a handle is rotatably mounted on the mounting portion.

[0011] The utility model is further configured to include two fixing bolts, each fixing bolt includes a polished rod, the left and right sides of the handle are rotatably mounted on the corresponding polished rods respectively, and each fixing bolt is threadably matched with the mounting portion.

[0012] By adopting the above technical scheme, 1. Since the fixing part is located between the mounting part and the matching part and the fixing part and the mounting part are detachable, and the matching part and the mounting part are detachable, after the air pump is damaged, the mounting part, the matching part and the mounting part can be disassembled for inspection and the fixing part where the impeller is located can be removed for cleaning. The modular arrangement enables the corresponding damaged parts to be inspected and replaced, thereby extending the service life of the undamaged parts; 2. When the diameter of the air suction port on the bag body that needs to be evacuated is smaller than the air suction hole, at this time, the air nozzle can be installed into the matching part after separating the matching part from the fixed part, and during the insertion process, the second limiting ring will forcibly cross the matching part so that the second limiting ring will abut against the air suction section, and the first limiting ring located in the matching part will abut against the matching part, and then the assembly of the matching part and the fixed part is completed so that the insertion The air nozzle of the matching part cannot move in the axial direction and is stably located on the matching part, and then is sleeved on the air suction port on the bag body that needs to be evacuated to realize air suction. Therefore, the air nozzle on the matching part can be disassembled and assembled by separating the matching part and the fixed part, and multiple air nozzles with different diameters at the bottom can be produced. By installing the air nozzles with different diameters at the bottom into the limiting part, the air pump can be matched with more air suction ports with different diameters; 3. At the same time, since each limiting slot of the first limiting ring will cooperate with the corresponding limiting plug block, the air nozzle inserted in the matching part will not rotate, thereby further improving the stability of the air nozzle on the matching part; 4. Since the first limiting ring will abut against the matching part and the second limiting ring will abut against the air suction section, the setting of the first limiting ring and the second limiting ring can ensure airtightness and reduce gas leakage during the air suction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is an assembly diagram of a specific implementation method of the utility model;

[0015] Figure 2 It is an exploded view of the utility model;

[0016] Figure 3 The exploded view of the mating part and the impeller;

[0017] Figure 4 is a cross-sectional view of the mating part and the impeller;

[0018] Figure 5 is a cross-sectional view of the mating part and the impeller from another perspective;

[0019] Figure 6 for Figure 2 A magnified view of middle;

[0020] Figure 7 for Figure 4 Enlarged view of middle B;

[0021] Figure 8 for Figure 4 Enlarged view of middle C;

[0022] Fig. 9 for Figure 5 Enlarged view of D in the middle.

[0023] In the figure: 1-shell, 11-installation part, 111-air outlet, 112-screw hole, 113-handle, 12-matching part, 121-air extraction hole, 122-limiting plug block, 123-disassembly plug block, 1231-matching slot, 13-air extraction section;

[0024] 2- Motor;

[0025] 3-impeller, 31-fixing part, 311-perforation, 312-disassembly slot, 3121-matching plug;

[0026] 4- Switch;

[0027] 5-air nozzle, 51-first limiting ring, 511-limiting slot, 52-second limiting ring, 521-deformation groove;

[0028] 6-fixing bolt, 61-plain rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-Figure 9As shown, the utility model discloses an air pump with high adaptability, which is composed of a housing 1, a motor 2, a switch 4 for starting and closing the motor 2, and an impeller 3. The housing 1 includes an air outlet 111 at the top and an air suction hole 121 at the bottom. The output shaft of the motor 2 is fixedly connected to the impeller 3 by welding and the like and is located in the housing 1. The impeller 3 is located at the bottom of the housing 1. A suction section 13 is protrudingly provided at the bottom of the housing 1. By aligning the suction section 13 with the suction port on the bag body to be evacuated, the switch 4 is turned on to start the motor 2 to realize the impeller 3. The rotation of the impeller 3 causes the gas to flow from the air extraction hole 121 toward the air outlet hole 111 (this is the prior art and will not be elaborated on here), and also includes a gas nozzle 5. The housing 1 includes a mounting portion 11 at the top and a matching portion 12 at the bottom. The air extraction section 13 is located at the bottom of the matching portion 12. The impeller 3 includes a fixing portion 31, which is located between the mounting portion 11 and the matching portion 12 and is detachably connected to the mounting portion 11 by means of buckles, bolts, etc. The matching portion 12 is connected to the mounting portion 11 by means of buckles, bolts, etc. The air nozzle 5 further comprises a first limiting ring 51 and a second limiting ring 52 made of a deformable material such as rubber. The air nozzle 5 is inserted into the matching portion 12 and the bottom of the first limiting ring 51 abuts against the matching portion 12, and the upper end surface of the second limiting ring 52 abuts against the air extraction section 13. A plurality of limiting inserts 122 are arranged at intervals along the circumferential direction in the matching portion 12. The first limiting ring 51 corresponds to each limiting insert. The limiting plug block 122 is provided with a limiting slot 511. 1. Since the fixing portion 31 is located between the mounting portion 11 and the matching portion 12, and the fixing portion 31 and the mounting portion 11 are detachable, and the matching portion 12 and the mounting portion 11 are detachable, when the air pump is damaged, the mounting portion 11, the matching portion 12 and the mounting portion 11 can be disassembled for repair, and the fixing portion 31 where the impeller 3 is located can be removed for cleaning. The modular setting enables the corresponding damaged parts to be repaired and replaced, thereby extending the service life of the undamaged parts; 2.When the diameter of the air suction port on the bag body that needs to be evacuated is smaller than the air suction hole 121, at this time, by separating the matching part 12 from the fixing part 31, the air nozzle 5 can be installed in the matching part 12, and during the insertion process, the second limiting ring 52 will forcibly cross the matching part 12 so that the second limiting ring 52 and the air suction section 13 are abutted, and the first limiting ring 51 located in the matching part 12 will abut against the matching part 12. At this time, the matching part 12 and the fixing part 31 are assembled again, so that the air nozzle 5 inserted in the matching part 12 cannot move in the axial direction and is stably located on the matching part 12, and then is sleeved on the air suction port on the bag body that needs to be evacuated to achieve air suction. Therefore, the alignment can be achieved by disassembling and separating the matching part 12 and the fixing part 31. 1. The air nozzle 5 on the matching part 12 can be disassembled and assembled, and multiple air nozzles 5 with different bottom diameters can be produced. By installing the air nozzles 5 with different bottom diameters into the limiting part 12, the air pump can be matched with more suction ports with different diameters; 2. At the same time, since each limiting slot 511 of the first limiting ring 51 will cooperate with the corresponding limiting plug 122, the air nozzle 5 inserted in the matching part 12 will not rotate, thereby further improving the stability of the air nozzle 5 on the matching part 12; 3. Since the first limiting ring 51 will abut against the matching part 12 and the second limiting ring 52 will abut against the suction section 13, the setting of the first limiting ring 51 and the second limiting ring 52 can ensure airtightness and reduce gas leakage during the suction process.

[0031] Preferably, each of the limit blocks 122 is arranged in a stepped shape with a narrow upper part and a wide lower part. Since the width of the upper end face of each limit block 122 is smaller than the lower end face, the lower end face of each limit block 122 can be more stably fixed on the matching part 12. In the process of installing the air nozzle 5 into the matching part 12, the limit slots 511 on the first limit ring 51 will first contact the upper end face of each limit block 122, that is, the part with the smallest width, thereby facilitating the assembly of each limit block 122 with the limit slots 511 on the first limit ring 51.

[0032] Preferably, the second limiting ring 52 is configured to be tapered from top to bottom, and a deformation groove 521 is provided at the upper end of the second limiting ring 52. Since the second limiting ring 52 is tapered from top to bottom, the bottom of the second limiting ring 52, that is, the part with the smallest diameter, is the first part to be inserted into the mating part 12 during the process of inserting the air nozzle 5 into the mating part 12, thereby facilitating the second limiting ring 52 to forcibly pass over the mating part 12. When the second limiting ring 52 abuts against the air pumping section 13, the part with the largest diameter of the second limiting ring 52 contacts the air pumping section 13 at this time, thereby enabling the second limiting ring 52 to stably abut against the air pumping section 13 without the action of external force. Moreover, due to the existence of the deformation groove 521, when the air nozzle 5 needs to be removed from the mating part 12, the outer periphery of the second limiting ring 52 is deformed toward the deformation groove 521 by the force, and then forced upward to pass over the mating part 12 to achieve the separation of the air nozzle 5 from the mating part 12.

[0033] In addition, it also includes a plurality of connecting bolts (not shown in the figure), the fixing portion 31 is provided with a through hole 311 corresponding to each connecting bolt, and the mounting portion 11 is provided with a screw hole 112 corresponding to each through hole 311, and each connecting bolt is respectively inserted into one of the through holes 311 and threadedly engaged with the corresponding screw hole 112. Therefore, by inserting each connecting bolt into the through hole 311 and threadedly engaging with the corresponding screw hole 112, the fixing portion 31 can be stably located on the mounting portion 11, so that the mounting portion 11 and the fixing portion 31 can be stably connected together while being convenient for disassembly and assembly.

[0034] Among them, the mating portion 12 is provided with a disassembly block 123 on the outside of each through hole 311, the fixed portion 31 is provided with a disassembly slot 312 corresponding to each disassembly block 123, each of the disassembly blocks 123 is recessed inwardly and provided with a matching slot 1231, and each of the matching slots 1231 is arranged in a ring shape, and the fixed portion 31 is provided with a matching block 3121 in each disassembly slot 312, 1. Since each disassembly block 123 of the mating portion 12 will be inserted into the disassembly slot 312 corresponding to the fixed portion 31, the assembled mating portion 12 cannot be rotated compared to the fixed portion 31; 2. Since each disassembly block 123 is recessed inwardly with a matching slot 1231, When each disassembly and assembly block 123 is inserted into the corresponding disassembly and assembly slot 312 on the fixed part 31, the portion of each disassembly and assembly block 123 located above the corresponding mating slot 1231 needs to be forced upward to pass over the mating block 3121 in the corresponding disassembly and assembly slot 312 so as to achieve the mating of each mating slot 1231 and the mating block 3121. Similarly, when it is necessary to separate the mating part 12 from the fixed part 31, a downward force is applied to the mating part 12 so that the portion of each disassembly and assembly block 123 located above the corresponding mating slot 1231 will be forced downward to pass over the corresponding mating block 3121 so that each disassembly and assembly block 123 is separated from the corresponding disassembly and assembly slot 312 to achieve the separation of the mating part 12 from the fixed part 31.

[0035] In addition, a handle 113 is rotatably mounted on the mounting portion 11. Since the handle 113 on the mounting portion 11 is rotatably arranged, the air pump can be carried by lifting the handle 113 during carrying, and the handle 113 can be rotated upward to cooperate with the hook to hang the air pump.

[0036] Wherein, it also includes two fixing bolts 6, each fixing bolt 6 includes a light rod 61, the left and right sides of the handle 113 are respectively rotatably installed on the corresponding light rod 61 and each fixing bolt 6 is threadedly matched with the mounting portion 11. Since each fixing bolt 6 is threadedly matched with the mounting portion 11, and the left and right sides of the handle 113 are rotatably installed on the corresponding light rod 61, when assembling the handle 113, the left and right sides of the handle 113 are respectively sleeved on the light rod 61, and then each fixing bolt 6 is rotated to achieve the cooperation between each fixing bolt 6 and the mounting portion 11, so that the handle 113 can be stably installed on the mounting portion 11, and at the same time, the handle 113 can be removed from the mounting portion 11 by rotating each fixing bolt 6 counterclockwise to separate it from the mounting portion 11, so that the user can choose whether to install the handle 113 on the shell 1 according to personal needs, thereby improving the user experience.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air pump with high adaptability, consisting of a housing, a motor and an impeller, wherein the housing includes an air outlet at the top and an air suction hole at the bottom, the motor is fixedly connected to the impeller and is located in the housing, and an air suction section is protruding from the bottom of the housing, characterized in that: It also includes an air nozzle, the shell includes a mounting portion at the top and a matching portion at the bottom, the impeller includes a fixing portion, the fixing portion is located between the mounting portion and the matching portion and is detachably connected to the mounting portion, the matching portion is detachably connected to the mounting portion, the air nozzle also includes a first limiting ring and a second limiting ring, the air nozzle is inserted into the matching portion and the bottom of the first limiting ring is abutted against the matching portion, and the upper end surface of the second limiting ring is abutted against the air extraction section, a plurality of limiting blocks are arranged at circumferential intervals in the matching portion, and the first limiting ring is provided with limiting slots corresponding to each limiting block.

2. The air pump with high adaptability according to claim 1, characterized in that: Each of the limit plug blocks is arranged in a stepped shape with a narrow top and a wide bottom.

3. An air pump with high adaptability according to claim 1 or 2, characterized in that: The second limiting ring is configured to be tapered from top to bottom, and a deformation groove is provided at the upper end of the second limiting ring.

4. The air pump with high adaptability according to claim 1, characterized in that: It also includes a plurality of connecting bolts, the fixing portion is provided with a through hole corresponding to each connecting bolt, the mounting portion is provided with a screw hole corresponding to each through hole, and each connecting bolt is respectively inserted into one of the through holes and is threadedly matched with the corresponding screw hole.

5. The air pump with high adaptability according to claim 4, characterized in that: The matching portion is provided with a disassembly block on the outside of each through hole, the fixed portion is provided with a disassembly slot corresponding to each disassembly slot, each disassembly slot is recessed inwardly and provided with a matching slot, each matching slot is arranged in a ring shape, and the fixed portion is provided with a matching block in each disassembly slot.

6. The air pump with high adaptability according to claim 1, characterized in that: A handle is rotatably mounted on the mounting portion.

7. The air pump with high adaptability according to claim 6, characterized in that: It also includes two fixing bolts, each of which includes a polished rod. The left and right sides of the handle are respectively rotatably mounted on the corresponding polished rod, and each fixing bolt is threadedly matched with the mounting portion.

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