Air pump

Abstract

The present application provides an air pump. The above-mentioned air pump includes a mounting frame, a driving mechanism, a piston-connecting rod assembly and an air nozzle; the mounting frame includes a first fixed seat, a fixed plate and a second fixed seat connected in sequence, and the first fixed seat, the fixed plate and the second fixed seat are integrally formed; the second fixed seat is provided with a mounting hole; the driving mechanism is arranged on the first fixed seat, and the power output end of the driving mechanism is connected to the piston-connecting rod assembly; the air nozzle is located in the mounting hole and connected to the second fixed seat, the air nozzle is provided with a communicating slide groove and an air outlet hole, and the piston-connecting rod assembly is partially located in the slide groove and is slidably connected to the air nozzle. Since the first fixed seat, the fixed plate and the second fixed seat of the mounting frame are integrally formed, the first fixed seat, the fixed plate and the second fixed seat are reliably connected together, and at the same time the rigidity of the mounting frame is improved, avoiding the problem that the rigidity of the plastic bracket is poor and it is easy to deform due to heat.

Description

Technical Field

[0001] The invention relates to the field of inflatable products, in particular to an inflatable pump. Background Art

[0002] An air pump, also called an air pump or inflator, is an inflatable tool that works by running a motor. An air pump is used to inflate inflatable products such as assault boats. The working principle of an air pump is that when the motor runs to pump air, the valve of the communicating vessel is opened by the atmospheric pressure, and the gas enters the cylinder.

[0003] The bracket of the conventional air pump is a plastic bracket, the plastic air nozzle is connected to the plastic bracket in the axial direction by screws, the external heat sink such as aluminum fins is sleeved on the plastic bracket, and the heat sink is located between the plastic air nozzle and the plastic bracket, so that the heat sink is clamped axially between the plastic air nozzle and the plastic bracket by screw locking, so that the heat of the plastic bracket is dissipated through the heat sink. However, since the rigidity of the plastic bracket is poor and it is easy to deform when heated, the reliability of the connection between the plastic bracket and the plastic air nozzle is poor. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an air pump with a simple structure, a small volume and good thermal conductivity.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] An air pump comprises a mounting frame, a driving mechanism, a piston-connecting rod assembly and an air nozzle;

[0007] The mounting frame comprises a first fixing seat, a fixing plate and a second fixing seat connected in sequence, wherein the first fixing seat, the fixing plate and the second fixing seat are integrally formed; and the second fixing seat is provided with a mounting hole;

[0008] The driving mechanism is arranged on the first fixing seat, and the power output end of the driving mechanism is connected to the piston connecting rod assembly;

[0009] The air nozzle is located in the mounting hole and connected to the second fixing seat. The air nozzle is provided with a communicating slide groove and an air outlet hole. The piston connecting rod assembly is partially located in the slide groove and is slidably connected to the air nozzle.

[0010] In one embodiment, the air pump also includes a transmission assembly, the power output end of the driving mechanism is connected to the transmission assembly, the transmission assembly is movably arranged on the fixed plate, and the piston connecting rod assembly is rotatably connected to the transmission assembly, so that the power output end of the driving mechanism is connected to the piston connecting rod assembly.

[0011] In one embodiment, the transmission assembly includes a driving gear and a driven gear; the driving gear is sleeved on the power output end of the driving mechanism, the driven gear is rotatably connected to the fixed plate, the driven gear is meshed with the driving gear for transmission, and the piston connecting rod assembly is rotatably connected to the driven gear.

[0012] In one embodiment, the piston-connecting rod assembly includes a connecting rod and a piston, the connecting rod is connected to the piston, the piston is located in the slide groove and is slidingly connected to the air nozzle, and the connecting rod is rotationally connected to the driven gear; the center line of rotation of the driven gear relative to the fixed plate is not colinear with the center line of rotation of the connecting rod relative to the driven gear.

[0013] In one embodiment, a rotating shaft is protruded from a side of the driven gear adjacent to the connecting rod, and the connecting rod includes a connecting rod body and a roller, one end of the connecting rod body is connected to the piston, and the other end of the connecting rod body is provided with a connecting hole, the roller is located in the connecting hole and is rotatably connected to the connecting rod body, and the roller is sleeved on the rotating shaft and is rotatably connected to the rotating shaft.

[0014] In one embodiment, the air nozzle includes an air nozzle body and a ferrule, the ferrule is provided with a socket hole, the air nozzle body is located in the socket hole and connected to the ferrule, the ferrule part is located in the mounting hole and connected to the second fixing seat; the slide groove and the air outlet are both provided in the air nozzle body.

[0015] In one of the embodiments, the ferrule is further provided with an exposed hole communicating with the sleeve hole.

[0016] In one embodiment, the ferrule is detachably connected to the second fixing seat.

[0017] In one embodiment, a connected insertion groove and a rotation limit groove are formed on a side of the second fixing seat facing away from the first fixing seat, the rotation limit groove is connected to the mounting hole, an arc-shaped boss is convexly provided on the side wall of the ferrule, the ferrule is inserted into the rotation limit groove through the insertion groove, and the arc-shaped boss is used to be limited in the rotation limit groove when the ferrule is rotated relative to the second fixing seat by a predetermined angle, the minimum value of the inner diameter of the rotation limit groove is equal to the maximum value of the inner diameter of the insertion groove; the inner diameter of the insertion groove decreases along the direction in which the ferrule is limited in the rotation limit groove relative to the second fixing seat.

[0018] In one embodiment, the air pump also includes a locking piece, and the second fixing seat also has a locking hole connected to the insertion groove, the locking piece is located in the locking hole and is threadedly connected to the second fixing seat, and the locking piece abuts against the side wall of the hoop.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] 1. Since the first fixing seat, the fixing plate and the second fixing seat of the mounting frame are integrally formed, the first fixing seat, the fixing plate and the second fixing seat are reliably connected together, and the rigidity of the mounting frame is improved, thereby avoiding the problem that the rigidity of the plastic bracket is poor and it is easy to deform due to heat;

[0021] 2. Since the first fixing seat, the fixing plate and the second fixing seat of the mounting frame are integrally formed, the first fixing seat, the fixing plate and the second fixing seat are deformed to the same extent by heat, and there is no need to add a radiator for heat dissipation, thus avoiding the problem of poor reliability of the connection between the plastic bracket and the plastic air nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a schematic diagram of an air pump in one embodiment;

[0024] Figure 2 for Figure 1 A schematic diagram of the air pump from another perspective;

[0025] Figure 3 for Figure 1 A schematic diagram of the air pump from another perspective;

[0026] Figure 4 for Figure 1 A schematic diagram of the air pump from another perspective;

[0027] Figure 5 for Figure 4 A cross-sectional view of the air pump taken along line AA;

[0028] Figure 5a for Figure 5 A BB line cross-sectional view of the air pump shown;

[0029] Figure 6 for Figure 1 A partial schematic diagram of the air pump shown;

[0030] Figure 7 for Figure 1 Another partial schematic diagram of the air pump shown. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] like Figure 1 and Figure 2 As shown, an air pump 10 of an embodiment includes a mounting frame 100, a driving mechanism 200, a piston connecting rod assembly 300 and an air nozzle 400. In this embodiment, the driving mechanism 200 and the air nozzle 400 are both mounted on the mounting frame 100. One end of the piston connecting rod assembly 300 is connected to the power output end of the driving mechanism 200, and the other end is slidably connected to the air nozzle 400. Figure 3 As shown, the mounting frame 100 includes a first fixing seat 100a, a fixing plate 100b and a second fixing seat 100c which are connected in sequence. The first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c are integrally formed so that the first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c are firmly connected together.

[0035] like Figure 3 As shown, in one embodiment, the driving mechanism 200 is disposed on the first fixing seat 100a, and the power output end of the driving mechanism 200 is connected to the piston connecting rod assembly 300. Figure 4 and Figure 5, the second fixing seat 100c is provided with a mounting hole 110, and the air nozzle 400 is located in the mounting hole 110 and connected to the second fixing seat 100c. The air nozzle 400 is provided with a connected slide groove 402 and an air outlet 404, and the piston connecting rod assembly 300 is partially located in the slide groove 402 and is slidably connected to the air nozzle 400. The driving mechanism 200 drives the piston connecting rod assembly 300 to slide relative to the air nozzle 400, so that the piston connecting rod assembly 300 slides in the slide groove 402 and squeezes the gas in the slide groove 402, and then the gas in the slide groove 402 is discharged from the air outlet 404, so as to realize the inflation operation of the air pump 10. In this embodiment, the driving mechanism 200 drives the piston connecting rod assembly 300 to slide reciprocatingly relative to the air nozzle 400, so as to realize the reciprocating inflation operation of the air pump 10.

[0036] The above-mentioned air pump 10, because the first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c of the mounting frame 100 are integrally formed, the first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c are reliably connected together, and the rigidity of the mounting frame 100 is improved, avoiding the problem that the rigidity of the plastic bracket is poor and it is easy to deform when heated. Because the first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c of the mounting frame 100 are integrally formed, that is, the degree of deformation of the first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c when heated is consistent, and there is no need to add a radiator for heat dissipation, avoiding the problem of poor reliability of the connection between the plastic bracket and the plastic air nozzle 400.

[0037] like Figure 1 As shown, in one embodiment, the air pump 10 further includes a transmission assembly 500, and the power output end of the driving mechanism 200 is connected to the transmission assembly 500. The transmission assembly 500 is movably arranged on the fixed plate 100b, and the piston connecting rod assembly 300 is rotatably connected to the transmission assembly 500, so that the power output end of the driving mechanism 200 is connected to the piston connecting rod assembly 300. In this embodiment, the transmission assembly 500 is rotatably connected to the fixed plate 100b. The center line of the rotation of the transmission assembly 500 relative to the fixed plate 100b is the first center line, and the center line of the rotation of the piston connecting rod assembly 300 relative to the transmission assembly 500 is the second center line. The first center line and the second center line are not colinear, so that the piston connecting rod assembly 300 is eccentrically rotated and connected to the transmission assembly 500, so that the piston connecting rod assembly 300 can slide back and forth in the slide groove 402.

[0038] like Figure 1As shown, in one embodiment, the transmission assembly 500 includes a driving gear 510 and a driven gear 520. The driving gear 510 is sleeved on the power output end of the driving mechanism 200, so that the transmission assembly 500 is connected to the power output end of the driving mechanism 200. The driven gear 520 is rotatably connected to the fixed plate 100b, the driven gear 520 is meshed with the driving gear 510 for transmission, and the piston connecting rod assembly 300 is rotatably connected to the driven gear 520, so that the piston connecting rod assembly 300 is rotatably connected to the transmission assembly 500. In this embodiment, the driving gear 510 and the driven gear 520 are both bevel gears, so that the driving gear 510 is meshed along one side of the driven gear 520 for transmission. It can be understood that in other embodiments, the driving gear 510 and the driven gear 520 are not limited to be bevel gears, but can also be spur gears.

[0039] It should be noted that, in other embodiments, the transmission assembly 500 is not limited to being rotationally connected to the fixed plate 100b, and the transmission assembly 500 can also be slidably connected to the fixed plate 100b.

[0040] like Figure 4 and Figure 5 As shown, in one embodiment, the piston-connecting rod assembly 300 includes a connecting rod 310 and a piston 320, and the connecting rod 310 is connected to the piston 320. The piston 320 is located in the slide groove 402 and is slidably connected to the air nozzle 400, so that the piston-connecting rod assembly 300 is slidably connected to the air nozzle 400. The connecting rod 310 is rotatably connected to the driven gear 520, so that the piston-connecting rod assembly 300 is rotatably connected to the driven gear 520. The center line of rotation of the driven gear 520 relative to the fixed plate 100b is not colinear with the center line of rotation of the connecting rod 310 relative to the driven gear 520, that is, the rotatable connection between the connecting rod 310 and the driven gear 520 is an eccentric rotatable connection structure, so that when the driven gear 520 rotates relative to the fixed plate 100b, it drives the connecting rod 310 to slide reciprocatingly relative to the air nozzle 400, thereby realizing the reciprocating inflation operation of the air pump 10.

[0041] like Figure 2 and Figure 5 As shown, in one embodiment, a rotating shaft 523 is protruded from one side of the driven gear 520 adjacent to the connecting rod 310. The connecting rod 310 includes a connecting rod body 312 and a roller 314. One end of the connecting rod body 312 is connected to the piston 320, and the other end of the connecting rod body 312 is provided with a connecting hole 312a. The roller 314 is located in the connecting hole 312a and is rotatably connected to the connecting rod body 312. The roller 314 is sleeved on the rotating shaft 523 and is rotatably connected to the rotating shaft 523, so that the connecting rod body 312 is rotatably connected to the rotating shaft 523 through the roller 314, thereby avoiding large wear when the connecting rod body 312 and the rotating shaft 523 are rotatably connected, and the connecting rod body 312 and the rotating shaft 523 are reliably rotatably connected.

[0042] like Figure 5 and Figure 5a As shown, in one embodiment, the air nozzle 400 includes an air nozzle body 410 and a ferrule 420. The ferrule 420 is provided with a socket hole 422, and the air nozzle body 410 is located in the socket hole 422 and connected to the ferrule 420. The ferrule 420 is partially located in the mounting hole 110 and connected to the second fixing seat 100c, so that the ferrule 420 is connected to the second fixing seat 100c, and the air nozzle body 410 is reliably connected to the second fixing seat 100c. In this embodiment, the slide groove 402 and the air outlet hole 404 are both provided in the air nozzle body 410.

[0043] like Figure 1 and Figure 5 As shown, in one of the embodiments, the sleeve 420 is further provided with an exposed hole 424 connected to the sleeve hole 422, so that the air outside the sleeve 420 can dissipate the heat of the air nozzle body 410 through the exposed hole 424, and the heat of the air nozzle body 410 can be transferred to the sleeve 420 for heat dissipation, thereby improving the heat dissipation rate of the air nozzle body 410.

[0044] In one embodiment, the inner wall of the hoop 420 is provided with a plurality of spaced abutment strips, and the exposed hole is located between two adjacent abutment strips, so that the air nozzle body is located in the sleeve hole and there is an air flow channel between the inner wall of the hoop, and then the air flow enters the hoop through the exposed hole and flows between the inner wall of the hoop and the outer wall of the air nozzle body, thereby improving the heat dissipation performance of the air nozzle. In this embodiment, each abutment strip extends along the axial direction of the hoop 420.

[0045] like Figure 1 As shown, in order to improve the convenience of using the air pump 10, in one embodiment, the hoop 420 is detachably connected to the second fixing seat 100c to facilitate maintenance and replacement of the air nozzle 400, thereby improving the convenience of using the air pump 10.

[0046] like Figure 1 , Figure 6 and Figure 7As shown, in one embodiment, the second fixing seat 100c is provided with a connected insertion groove 120 and a rotation limiting groove 130 on a side facing away from the first fixing seat 100a, and the rotation limiting groove 130 is connected to the mounting hole 110. An arc-shaped boss 423 is convexly provided on the side wall of the ferrule 420, and the ferrule 420 is inserted into the rotation limiting groove 130 through the insertion groove 120, that is, the ferrule 420 can only be inserted into the rotation limiting groove 130 along the direction corresponding to the arc-shaped boss 423 and the insertion groove 120. The arc-shaped boss 423 is used to limit the ferrule 420 to be located in the rotation limiting groove 130 when the ferrule 420 rotates a predetermined angle relative to the second fixing seat 100c, and the minimum value of the inner diameter of the rotation limiting groove 130 is equal to the maximum value of the inner diameter of the insertion groove 120. The inner diameter of the insertion groove 120 decreases along the direction in which the ferrule 420 is rotated relative to the second fixing seat 100c and is limited in the rotation limiting groove 130, so that the arc boss 423 is limited in the rotation limiting groove 130 after rotating a predetermined angle, thereby making the ferrule 420 reliably connected to the second fixing seat 100c.

[0047] In this embodiment, the insertion groove 120 includes a connected fan-shaped groove 121 and a circular groove 123, and the fan-shaped groove 121 and the circular groove 123 are both connected to the rotation limit groove 130, and the diameter of the fan-shaped groove 121 is larger than the diameter of the circular groove 123. The arc boss 423 is a fan-shaped boss, and the arc boss 423 is adapted to the fan-shaped groove 121, so that the arc boss 423 can only be inserted into the rotation limit groove 130 facing the fan-shaped groove 121, and the inner diameter of the insertion groove decreases along the direction in which the sleeve hoop is rotated relative to the second fixed seat and is limited in the rotation limit groove. When the arc boss 423 rotates a predetermined angle with the sleeve hoop 420 relative to the second fixed seat 100c, the arc boss 423 is staggered with the fan-shaped groove 121 in the rotation limit groove 130, so that the arc boss 423 is limited in the rotation limit groove 130 after rotating a predetermined angle. Both the fan-shaped groove 121 and the circular groove 123 are arc-shaped groove structures.

[0048] like Figure 5 and Figure 5aAs shown, in order to make the arc boss reliably rotate and position in the rotation limit groove 130 and avoid excessive rotation of the arc boss, further, the inner diameter of the rotation limit groove 130 is reduced along the direction of the arc boss 423 being screwed in and positioned, so that the arc boss is positioned in the rotation limit groove after rotating a predetermined angle. In this embodiment, the inner diameter of the rotation limit groove is non-uniformly small along the direction of the arc boss being screwed in and positioned, that is, the inner diameter of the rotation limit groove includes a large diameter area 130a and a small diameter area 130b that are connected, and the inner diameter of the large diameter area is larger than the inner diameter of the small diameter area. The inner diameters of the arc inner walls in the large diameter area are equal. Similarly, the inner diameters of the arc inner walls in the small diameter area are equal. The inner diameter of the small diameter area is greater than or equal to the inner diameter of the circular groove 123, and the inner diameter of the small diameter area is smaller than the inner diameter of the fan-shaped groove 121. The inner diameter of the large diameter area is greater than or equal to the inner diameter of the fan-shaped groove. Both the large diameter area and the small diameter area are arc-shaped grooves. Part of the large diameter area is connected to the fan-shaped groove, and part of it is connected to the circular groove. The small diameter area is connected to the circular groove. When the arc-shaped boss of the ferrule is inserted into the large diameter area of ​​the rotation limit groove through the fan-shaped groove, the ferrule is rotated to rotate the arc-shaped boss from the large diameter area to the small diameter area of ​​the limit groove until the arc-shaped boss abuts against the position of the inner wall of the large diameter area adjacent to the small diameter area. At this time, the arc-shaped boss is located at the position corresponding to the large diameter area and the circular groove, so that the arc-shaped boss can be reliably rotated and positioned in the rotation limit groove, while avoiding excessive rotation of the arc-shaped boss. It can be understood that in other embodiments, the inner diameter of the rotation limit groove can also be gradually reduced along the direction in which the arc-shaped boss is screwed into the position, that is, the inner diameter of the rotation limit groove can also be gradually reduced along the direction in which the arc-shaped boss is screwed into the position.

[0049] like Figure 6 and Figure 7 As shown, in order to enable the arc-shaped boss to be quickly screwed into the rotation limit groove 130, further, the front end portion of the arc-shaped boss in the direction of being screwed into the rotation limit groove 130 is provided with a first guiding bevel 423a, and the inner wall of the rotation limit groove is provided with a second guiding bevel 138 adapted to the first guiding bevel, so that the arc-shaped boss is subjected to less resistance during the rotation process in the rotation limit groove, thereby enabling the arc-shaped boss to be quickly screwed into the rotation limit groove 130.

[0050] like Figure 5a and Figure 6 As shown, in order to facilitate the judgment of whether the arc-shaped boss is accurately screwed into the rotation limit groove 130, the second fixing seat 100c is also provided with a bare slot 135 connected to the rotation limit groove. When the arc-shaped boss is screwed into the rotation limit groove 130, the arc-shaped boss is located in the bare slot, so that the user can judge whether the arc-shaped boss is accurately screwed into the rotation limit groove 130, which improves the convenience of using the air pump and is conducive to the air flow flowing in the rotation limit groove through the bare slot. The air flow in the rotation limit groove can also enter through the bare slot to dissipate the heat on the surface of the air nozzle body, thereby improving the heat dissipation performance of the air nozzle. In this embodiment, the second guiding slope is arranged at a position of the inner wall of the rotation limit groove adjacent to the bare slot.

[0051] like Figure 6 As shown, in one embodiment, the air pump 10 further includes a locking member (not shown). The second fixing seat 100c is further provided with a locking hole 150 connected to the insertion groove 120. The locking member is located in the locking hole 150 and is screwed to the second fixing seat 100c. The locking member abuts against the side wall of the hoop 420 to prevent the hoop from accidentally rotating relative to the second fixing seat, so that the hoop 420 is better fixedly installed on the second fixing seat 100c. In this embodiment, the locking hole 150 is connected to the circular groove 123. The locking member is a screw.

[0052] It should be noted that, in other embodiments, the connection method between the ferrule and the second fixing seat is not limited to the positioning connection by protruding an arc-shaped boss on the ferrule, but can also be a threaded connection or a snap-on connection.

[0053] like Figure 5 As shown, in one embodiment, the slide groove 402 is opened on one side of the air nozzle body 410 adjacent to the driven gear 520, so that the piston connecting rod assembly 300 is better slidably connected with the air nozzle body 410 through the slide groove 402, and the structure of the air pump 10 is more compact.

[0054] like Figure 2 and Figure 6 As shown, in one embodiment, a limit platform 102 is provided at the end surface where the second fixed seat 100c is connected to the air nozzle body 410 and adjacent to the driven gear 520. The limit platform 102 abuts against the air nozzle body 410, so that the air nozzle body 410 is limited to the side adjacent to the driven gear 520 through the limit platform 102, and the hoop 420 is limited in the rotation limit groove 130. The air nozzle body 410 abuts against the hoop 420, so that the air nozzle body 410 is limited and installed on the second fixed seat 100c.

[0055] like Figure 5As shown, in one embodiment, the first fixed seat 100a, the fixed plate 100b and the second fixed seat 100c are all heat-conducting plates, that is, the first fixed seat 100a, the fixed plate 100b and the second fixed seat 100c are all thermally conductive, so that the mounting frame 100 has good thermal conductivity. The two ends of the fixed plate 100b extend to the first fixed seat 100a and the second fixed seat 100c respectively, and the fixed plate 100b, the first fixed seat 100a and the second fixed seat 100c together form a receiving chamber 100d. In this embodiment, the transmission assembly 500 is arranged in the receiving chamber 100d and is movably connected to the fixed plate 100b. The piston connecting rod assembly 300 is partially located in the receiving chamber 100d and is rotatably connected to the transmission assembly 500. Since the fixing plate 100b, the first fixing seat 100a and the second fixing seat 100c are integrally formed, the materials of the fixing plate 100b, the first fixing seat 100a and the second fixing seat 100c are the same, and the first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c are all heat-conducting plates, so that the mounting frame 100 has good thermal conductivity and can meet the heat dissipation requirements without setting up a radiator. This not only simplifies the structure and reduces the volume, but also improves the heat dissipation performance of the air pump 10.

[0056] like Figure 5 As shown, in order to make the structure of the mounting frame 100 simpler and easier to shape, in one embodiment, the cross section of the accommodating cavity 100d is U-shaped, so that the structure of the mounting frame 100 is simpler and easier to shape.

[0057] like Figure 5 As shown, in one embodiment, the first fixing seat 100a and the second fixing seat 100c are arranged in parallel, so that the structure of the mounting frame 100 is simple and easy to manufacture. In this embodiment, the first fixing seat 100a and the second fixing seat 100c are both perpendicular to the extension direction of the fixing plate 100b, so that the mounting frame 100 has good structural strength and the space of the accommodating cavity 100d is larger. It can be understood that in other embodiments, the first fixing seat 100a and the second fixing seat 100c are not limited to being perpendicular to the extension direction of the fixing plate 100b. For example, the angle between the first fixing seat 100a and the second fixing seat 100c and the extension direction of the fixing plate 100b is 80 degrees.

[0058] like Figure 5 As shown, in one embodiment, the first fixing seat 100a, the second fixing seat 100c and the fixing plate 100b are all metal plates, so that the mounting frame 100 has good thermal conductivity and stress strength. In one embodiment, the fixing plate 100b, the first fixing seat 100a and the second fixing seat 100c are all aluminum plates, so that the mounting frame 100 has good thermal conductivity and light weight.

[0059] like Figure 5 As shown, in this embodiment, the fixing plate 100b, the first fixing seat 100a and the second fixing seat 100c are integrally cast. It is understood that in other embodiments, the fixing plate 100b, the first fixing seat 100a and the second fixing seat 100c are not limited to being integrally cast. For example, the fixing plate 100b, the first fixing seat 100a and the second fixing seat 100c are separately formed and connected to one another by welding.

[0060] Of course, in other embodiments, the first fixing seat 100a, the second fixing seat 100c and the fixing plate 100b are not limited to metal plates. The first fixing seat 100a, the second fixing seat 100c and the fixing plate 100b are all made of plastic materials with good thermal conductivity and high strength. For example, the first fixing seat 100a, the second fixing seat 100c and the fixing plate 100b are integrally injection molded. For another example, the first fixing seat 100a, the second fixing seat 100c and the fixing plate 100b are individually molded and connected together by gluing.

[0061] Of course, the first heat conducting plate 100a, the second heat conducting plate 100c and the connecting plate 100b can also be any two integrally injection molded, which reduces the difficulty of injection molding, and further reduces the difficulty of manufacturing the heat dissipation bracket. In one embodiment, the heat dissipation bracket is installed and also includes a fixing. The second heat conducting plate and the connecting plate are integrally molded, so that the second heat conducting plate and the connecting plate are firmly connected. The first heat conducting plate is provided with a first fixing hole, and the connecting plate is provided with a second fixing hole. The fixings are respectively inserted into the first fixing hole and the second fixing hole, so that the connecting plate and the second heat conducting plate are firmly connected. In this embodiment, the fixings are bolts or screws.

[0062] like Figure 3 As shown, in one embodiment, the fixing plate 100b is provided with a hollow groove 104, so that air can flow through the hollow groove 104 to dissipate heat for the fixing plate 100b, thereby increasing the contact area between the fixing plate 100b and the air, thereby increasing the heat dissipation rate of the fixing plate 100b and reducing the weight of the fixing plate 100b.

[0063] like Figure 6 As shown, in one embodiment, the mounting frame 100 further includes a first heat-conducting rib plate 160 , which is respectively connected to the first fixing seat 100 a and the fixing plate 100 b , thereby improving the heat conduction rate and structural strength of the mounting frame 100 .

[0064] See again Figure 3 and Figure 6In one embodiment, the mounting frame 100 further includes a second heat-conducting rib plate 170, which is connected to the second fixing seat 100c and the fixing plate 100b, respectively, to improve the heat conduction rate and structural strength of the mounting frame 100. In this embodiment, the second heat-conducting rib plate 170 is parallel to the first heat-conducting rib plate 160, and both the second heat-conducting rib plate 170 and the first heat-conducting rib plate 160 are triangular rib plates.

[0065] In one embodiment, the first heat-conducting rib plate 160 is welded to the first fixing seat 100a and the fixing plate 100b, respectively, so that the first heat-conducting rib plate 160 is firmly connected to the first fixing seat 100a and the fixing plate 100b, respectively. The second heat-conducting rib plate 170 is welded to the second fixing seat 100c and the fixing plate 100b, respectively, so that the second heat-conducting rib plate 170 is firmly connected to the second fixing seat 100c and the fixing plate 100b, respectively.

[0066] like Figure 5 As shown, in one embodiment, the driving gear 510 is a first bevel gear, and the driven gear 520 is a second bevel gear. Both the driving gear 510 and the driven gear 520 are located in the accommodating chamber 100d. The first bevel gear is provided at the power output end of the driving mechanism 200, the second bevel gear is rotationally connected to the fixing plate 100b, the second bevel gear is meshed with the first bevel gear for transmission, and the piston connecting rod assembly 300 is rotationally connected to the second bevel gear, so that the power at the power output end of the driving mechanism 200 is transmitted to the piston connecting rod assembly 300 through the transmission assembly 500. In this embodiment, the connecting rod 310 is rotationally connected to the second bevel gear. The center line of the first bevel gear rotating with the power output end of the driving mechanism 200 is perpendicular to the center line of the second bevel gear rotating.

[0067] like Figure 2 , Figure 3 and Figure 5 As shown, in one embodiment, the second bevel gear includes a bevel gear body 522 and a rotating shaft 524. The bevel gear body is sleeved on the rotating shaft and connected to the rotating shaft, and the bevel gear body is meshed with the first bevel gear for transmission, so that the second bevel gear is meshed with the first bevel gear for transmission. The fixed plate 100b is provided with a rotating hole 105 connected to the accommodating cavity 100d, and the rotating shaft is located in the rotating hole 105 and is rotatably connected to the fixed plate 100b, so that the second bevel gear is rotatably connected to the fixed plate 100b.

[0068] In order to better enable the rotating shaft and the connecting plate to be rotatably connected, in another embodiment, the rotating shaft includes a rotating shaft body and a bearing. The bearing is sleeved on the rotating shaft body, and the bevel gear body is sleeved on the rotating shaft body and connected to the rotating shaft body. The bearing is located in the connecting hole and connected to the connecting plate, so that the rotating shaft and the connecting plate are rotatably connected, which greatly reduces the resistance to the rotation of the rotating shaft relative to the connecting plate. In this embodiment, the bearing is a ball bearing. The outer ring of the bearing is interference fit in the connecting hole, so that the bearing and the connecting plate are firmly connected. The inner ring of the bearing is sleeved on the rotating shaft body.

[0069] like Figure 2 , Figure 3 and Figure 5 As shown, in one embodiment, the bevel gear body 522 is provided with a first ventilation hole 522a. A ventilation cavity 106 is provided on one side of the fixed plate 100b adjacent to the bevel gear body 522, and the accommodating cavity 100d is connected to the rotating hole 105 through the ventilation cavity 106. In one embodiment, the fixed plate 100b is also provided with a second ventilation hole 108 connected to the ventilation cavity 106, and the first ventilation hole is connected to the second ventilation hole through the ventilation cavity, so that the air flow on one side of the fixed plate 100b flows into the accommodating cavity 100d through the first ventilation hole, the ventilation cavity and the second ventilation hole, or the air flow on the other side of the fixed plate 100b flows into the first ventilation hole through the accommodating cavity 100d, the second ventilation hole and the ventilation cavity, thereby allowing the fixed plate 100b to dissipate heat quickly, thereby improving the heat dissipation rate of the mounting frame 100. In this embodiment, the bevel gear body and the driving gear can both be straight bevel gears. In other embodiments, the bevel gear body and the driving gear can also be helical bevel gears.

[0070] like Figure 5 As shown, in one embodiment, the driving mechanism 200 includes a driving mechanism body 210 and a mounting shaft 220. The driving mechanism body 210 is fixed to the first fixed seat 100a. The first fixed seat 100a is provided with a through hole 109, and the mounting shaft 220 is inserted into the through hole 109, and the two ends of the mounting shaft 220 are respectively connected to the driving mechanism body 210 and the transmission assembly 500, so that the driving mechanism body 210 is connected to the transmission assembly 500 through the mounting shaft 220, and the power of the driving mechanism 200 is transmitted to the transmission assembly 500. In this embodiment, the driving mechanism body 210 is a motor body or a cylinder body. The driving gear 510 is sleeved on the mounting shaft 220, and the driving gear 510 is meshed with the driven gear 520 for transmission, so that the mounting shaft 220 is connected to the transmission assembly 500.

[0071] Compared with the prior art, the present invention has at least the following advantages:

[0072] 1. Since the first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c of the mounting frame 100 are integrally formed, the first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c are reliably connected together, and the rigidity of the mounting frame 100 is improved, thereby avoiding the problem that the rigidity of the plastic bracket is poor and it is easy to deform due to heat;

[0073] 2. Since the first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c of the mounting frame 100 are integrally formed, that is, the degree of thermal deformation of the first fixing seat 100a, the fixing plate 100b and the second fixing seat 100c is consistent, and there is no need to add a heat sink for heat dissipation, thereby avoiding the structural connection method in which the heat sink is axially clamped between the plastic air nozzle 400 and the plastic bracket by screw locking, and avoiding the problem of poor reliability of the connection between the plastic bracket and the plastic air nozzle 400.

[0074] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An air pump, characterized in that: It includes a mounting frame, a driving mechanism, a piston-connecting rod assembly and a gas nozzle; The mounting frame comprises a first fixing seat, a fixing plate and a second fixing seat connected in sequence, wherein the first fixing seat, the fixing plate and the second fixing seat are integrally formed; and the second fixing seat is provided with a mounting hole; The driving mechanism is arranged on the first fixing seat, and the power output end of the driving mechanism is connected to the piston connecting rod assembly; The air nozzle is located in the mounting hole and connected to the second fixing seat, the air nozzle is provided with a connecting slide groove and an air outlet hole, the piston connecting rod assembly is partially located in the slide groove and is slidably connected to the air nozzle; The air pump further comprises a transmission assembly, the power output end of the driving mechanism is connected to the transmission assembly, the transmission assembly is movably arranged on the fixed plate, the piston connecting rod assembly is rotatably connected to the transmission assembly, so that the power output end of the driving mechanism is connected to the piston connecting rod assembly; The gas nozzle comprises a gas nozzle body and a sleeve, the sleeve is provided with a sleeve hole, the gas nozzle body is located in the sleeve hole and connected to the sleeve, the sleeve is located in the mounting hole and connected to the second fixing seat; the slide groove and the air outlet are both provided in the gas nozzle body; The ferrule is also provided with an exposed hole connected to the sleeve hole; the inner wall of the ferrule is provided with a plurality of abutment strips distributed at intervals, and the exposed hole is located between two adjacent abutment strips; The hoop is detachably connected to the second fixing seat; a connected insertion groove and a rotation limiting groove are provided on a side of the second fixing seat facing away from the first fixing seat, the rotation limiting groove is connected to the mounting hole, an arc-shaped boss is convexly provided on the side wall of the hoop, the hoop is inserted into the rotation limiting groove through the insertion groove, and the arc-shaped boss is used to be limited in the rotation limiting groove when the hoop rotates relative to the second fixing seat by a predetermined angle, and the minimum value of the inner diameter of the rotation limiting groove is equal to the maximum value of the inner diameter of the insertion groove; the inner diameter of the insertion groove decreases along the direction in which the hoop is limited in the rotation limiting groove relative to the second fixing seat; The air pump also includes a locking piece, and the second fixing seat is further provided with a locking hole connected to the insertion groove, the locking piece is located in the locking hole and is threadedly connected to the second fixing seat, and the locking piece abuts against the side wall of the hoop.

2. The air pump according to claim 1, characterized in that: The transmission assembly includes a driving gear and a driven gear; the driving gear is sleeved on the power output end of the driving mechanism, the driven gear is rotatably connected to the fixed plate, the driven gear is meshed with the driving gear for transmission, and the piston connecting rod assembly is rotatably connected to the driven gear.

3. The air pump according to claim 2, characterized in that: The piston-connecting rod assembly includes a connecting rod and a piston, wherein the connecting rod is connected to the piston, the piston is located in the slide groove and is slidingly connected to the air nozzle, and the connecting rod is rotationally connected to the driven gear; the center line of rotation of the driven gear relative to the fixed plate is not colinear with the center line of rotation of the connecting rod relative to the driven gear.

4. The air pump according to claim 3, characterized in that: A rotating shaft is protruded from one side of the driven gear adjacent to the connecting rod, and the connecting rod includes a connecting rod body and a roller. One end of the connecting rod body is connected to the piston, and the other end of the connecting rod body is provided with a connecting hole. The roller is located in the connecting hole and is rotatably connected to the connecting rod body. The roller is sleeved on the rotating shaft and is rotatably connected to the rotating shaft.

5. The air pump according to claim 1, characterized in that: The insertion groove includes a connected fan-shaped groove and a circular groove, both of which are connected to the rotation limit groove, the diameter of the fan-shaped groove is larger than the diameter of the circular groove, the arc-shaped boss is a fan-shaped boss, the arc-shaped boss is adapted to the fan-shaped groove, and the inner diameter of the insertion groove decreases along the direction in which the hoop is limited in rotation relative to the second fixed seat in the rotation limit groove.

6. The air pump according to claim 5, characterized in that: The inner diameter of the rotation limiting groove decreases along the direction in which the arc-shaped boss is screwed into position.

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