CN212656959U

CN212656959U - Air pump magnetic rod fixing structure

Info

Publication number: CN212656959U
Application number: CN202020848549.7U
Authority: CN
Inventors: 王瑾
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-03-05
Anticipated expiration: 2030-05-19

Abstract

The utility model relates to the technical field of air pumps, in particular to an air pump magnetic rod fixing structure, which comprises a pump shell, a motor, a magnetic rod, a limiting rod, a first air cylinder assembly and a second air cylinder assembly; the motor is arranged in the pump shell; the magnetic rod penetrates through the pump shell, and two ends of the magnetic rod are respectively connected with the first air cylinder assembly and the second air cylinder assembly which are arranged outside the pump shell; the magnetic rod is connected with a motor through a limiting rod, and the motor drives the magnetic rod to do reciprocating motion along a central shaft in the length direction of the magnetic rod. The utility model discloses air pump bar magnet fixed knot constructs simple structure, installs and removes conveniently, can ensure the fixed clearance between air pump during operation bar magnet and the motor, furthest reduces the relative position deviation of bar magnet and motor to guarantee the performance of air pump.

Description

Air pump magnetic rod fixing structure

Technical Field

The utility model relates to an air pump technical field, more specifically relates to an air pump bar magnet fixed knot constructs.

Background

Diaphragm type air pumps are reciprocating pumps that rely on a diaphragm to reciprocate in a cylinder to compress and deliver air. The magnetic rod of the traditional diaphragm type air pump is generally fixedly connected with the air cylinder component through the leather cup, and the leather cup is usually made of rubber, so that the fixing mode of the magnetic rod belongs to soft fixing. Therefore, in the working process of the air pump, the working position of the magnetic rod can deviate under the influence of external force along with the hardness of the leather cup, and the relative position of the magnetic rod and the motor can deviate, so that the working efficiency and the performance of the air pump are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple structure, install and remove convenient air pump bar magnet fixed knot and construct, it can ensure the fixed clearance between air pump during operation bar magnet and the motor, furthest reduces the relative position deviation of bar magnet and motor to guarantee the performance of air pump.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the air pump magnetic rod fixing structure comprises a pump shell, a motor, a magnetic rod, a limiting rod, a first air cylinder assembly and a second air cylinder assembly; the motor is arranged in the pump shell; the magnetic rod penetrates through the pump shell, and two ends of the magnetic rod are respectively connected with the first air cylinder assembly and the second air cylinder assembly which are arranged outside the pump shell; the magnetic rod is connected with a motor through a limiting rod, and the motor drives the magnetic rod to do reciprocating motion along a central shaft in the length direction of the magnetic rod.

Further, the motor is composed of a motor A and a motor B, and the motor A and the motor B are respectively positioned on two opposite surfaces of the magnetic bar; the limiting rod comprises a first fixing part, a connecting rod and a second fixing part, the first fixing part and the second fixing part are fixedly connected through the connecting rod, the first fixing part is fixed at the end part of the magnetic rod, and the second fixing part is fixed on the motor A.

Furthermore, the motor a comprises an iron core and a coil arranged in the iron core, the coil is arranged opposite to the magnetic rod, and the second fixing part is fixed on the iron core; the motor B and the motor A have the same structure.

Furthermore, the magnetic rod comprises a shell and a magnetic sheet arranged in the shell; the magnetic sheet is arranged opposite to the coil; the shell comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially connected end to form a quadrilateral frame structure, wherein a first connecting piece is arranged on the first side plate, and the first side plate is connected with the first cylinder assembly through the first connecting piece; the third side plate is provided with a second connecting piece and is connected with the second air cylinder assembly through the second connecting piece; the first fixing part is fixed on the first side plate or the third side plate, the first fixing part and the second fixing part are located on the same side of the coil, and the connecting rod is perpendicular to the plane where the shell is located.

Preferably, the first side plate, the second side plate, the third side plate, the fourth side plate, the first connecting piece and the second connecting piece are integrally formed.

As an improvement, the limiting rods are provided with two groups, each group of limiting rods is provided with two limiting rods, two first fixing parts of one group of limiting rods are respectively arranged on two sides of the first connecting piece, and two first fixing parts of the other group of limiting rods are respectively arranged on two sides of the second connecting piece.

Preferably, the outer wall of the iron core is provided with a positioning rod, the positioning rod is parallel to the plane where the shell is located, and the two second fixing parts in each group of limiting rods are respectively fixed at two ends of the positioning rod.

Preferably, the first fixing portion and the second fixing portion are both fixedly connected with the magnetic bar and the motor A through screws respectively.

Preferably, the first fixing portion, the connecting rod and the second fixing portion are integrally formed.

Compared with the prior art, the utility model discloses an air pump bar magnet fixed knot constructs adopts the gag lever post to connect bar magnet and motor, has fixed the distance between bar magnet and the motor promptly, ensures the fixed clearance between air pump during operation bar magnet and the motor, furthest has reduced the relative position deviation of bar magnet and motor to the performance of air pump has been guaranteed.

Drawings

Fig. 1 is a schematic view of a fixing structure of a magnetic rod of an air pump according to an embodiment of the present invention.

Fig. 2 is a schematic sectional view taken along line a-a in fig. 1.

Fig. 3 is a schematic view illustrating a connection between the magnetic rod and the motor according to an embodiment of the present invention.

Fig. 4 is a schematic view of a magnetic rod according to an embodiment of the present invention.

Fig. 5 is a schematic view illustrating a connection between the magnetic rod and the stopper rod according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Further, it is to be understood that the terms indicating orientation or positional relationship in the present invention are based on the orientation or positional relationship shown in the drawings and are only for convenience of description and simplification of description, but do not indicate or imply that the structures or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Fig. 1 to 5 show an embodiment of a magnetic rod fixing structure of an air pump according to the present invention. As shown in fig. 1, the air pump magnetic rod fixing structure comprises a pump shell 1, a motor 2, a magnetic rod 3, a limiting rod 4, a first air cylinder assembly 5 and a second air cylinder assembly 6; the motor 2 is arranged in the pump shell 1; the magnetic rod 3 penetrates through the pump shell 1, and two ends of the magnetic rod 3 are respectively connected with a first air cylinder assembly 5 and a second air cylinder assembly 6 which are arranged outside the pump shell 1; the magnetic rod 3 is connected with the motor 2 through the limiting rod 4, and the motor 2 drives the magnetic rod 3 to do reciprocating motion along a central shaft in the length direction of the magnetic rod 3.

When in actual use, because the magnet rod 3 of the air pump magnet rod fixing structure adopts the limiting rod 4 to connect the motor 2, when the magnet rod 3 works under the driving action of the motor 2, the limiting rod 4 is equivalent to hard fixation, namely, the distance between the magnet rod 3 and the motor 2 is limited, the limiting rod 4 vibrates in a small amplitude when the magnet rod 3 is used for reciprocating compression of the air cylinder assemblies at the left end and the right end, the relative position deviation of the magnet rod 3 and the motor 2 is reduced to the maximum extent, namely, the fixed gap between the magnet rod 3 and the motor 2 when the air pump works is ensured, and therefore, the performance of the air pump is ensured. The utility model discloses an air pump bar magnet fixed knot constructs simple structure, installs and removes conveniently.

As shown in fig. 1 to 3, the motor 2 is composed of a motor a and a motor B, which are respectively located on two opposite sides of the magnetic rod 3, i.e. in actual operation, the coil inside the motor 2 interacts with the magnetic rod 3. As shown in fig. 2 and 3, the limiting rod 4 includes a first fixing portion 41, a connecting rod 42 and a second fixing portion 43, the first fixing portion 41 and the second fixing portion 43 are fixedly connected by the connecting rod 42, the first fixing portion 41 is fixed to the end of the magnetic rod 3, and the second fixing portion 43 is fixed to the motor a. In order to minimize the influence of the stopper rod 4 on the operation of the magnet bar 3, the first fixing portion 41 of the stopper rod 4 is disposed at the end of the magnet bar 3, and when the second fixing portion 43 is fixed to the motor a, the second fixing portion 43 is generally located closer to the first fixing portion 41, but it is preferable that the stopper effect is not affected.

More preferably, as shown in fig. 3, the motor a includes a core 21 and a coil 22 disposed in the core 21, the coil 22 is disposed opposite to the magnetic rod 3, and the second fixing portion 43 is fixed to the core 21. Wherein, motor B is the same with motor A's structure, also promptly, gag lever post 4 can set up on any side of bar magnet 3 in fact, and bar magnet 3 can be connected with motor A promptly, also can be connected with motor B, can be connected with motor A and motor B simultaneously even, nevertheless considers resource optimization and utilizes, reduces unnecessary consumptive material, adopts the gag lever post 4 setting mode of this embodiment, and bar magnet 3 is connected with motor A's iron core 21 through gag lever post 4 promptly.

In the present embodiment, as shown in fig. 3, 4 and 5, the magnet bar 3 includes a housing 31 and a magnet piece 32 provided inside the housing 31. Wherein, the magnetic sheet 32 is arranged opposite to the coil 22; the housing 31 includes a first side plate 311, a second side plate 312, a third side plate 313 and a fourth side plate 314 which are connected end to end in sequence to form a quadrilateral frame structure. In addition, a first connecting piece 315 is arranged on the first side plate 311, and the first side plate 311 is connected with the first cylinder assembly 5 through the first connecting piece 315; the third side plate 313 is provided with a second connecting piece 316, and the third side plate 313 is connected with the second cylinder assembly 6 through the second connecting piece 316; the first fixing portion 41 of the limiting rod 4 is fixed on the first side plate 311 or the third side plate 313, the first fixing portion 41 and the second fixing portion 43 are located on the same side of the coil 22, and the connecting rod 42 is perpendicular to the plane of the housing 31. The housing 31 is a quadrilateral frame structure, and the magnetic sheet 32 is disposed in the middle of the quadrilateral frame structure, that is, the magnetic rod 3 is substantially a cuboid, which is also convenient for fixing the limit rod 4. In addition, in practice, since the magnetic sheet 32 generally includes two magnets of opposite polarities, there is a partition structure in the middle inside the quadrangular frame structure.

In the preferred embodiment, the first side plate 311, the second side plate 312, the third side plate 313, the fourth side plate 314, the first connecting member 315, and the second connecting member 316 are integrally formed, so as to facilitate manufacturing and use, and to make the operation of the magnetic rod 3 more stable.

In order to further ensure the fixed gap between the magnetic rod 3 and the motor 2 when the air pump works, two sets of limiting rods 4 are provided, as shown in fig. 1, fig. 2, fig. 3 and fig. 5, two sets of limiting rods 4 are provided for each set, wherein two first fixing portions 41 of one set of limiting rods 4 are respectively provided on two sides of the first connecting piece 315, and two first fixing portions 41 of the other set of limiting rods 4 are respectively provided on two sides of the second connecting piece 316, that is, each side of the housing 31 of the magnetic rod 3 in the quadrilateral frame structure is connected with the iron core 21 of the motor a, so that the distance between the magnetic rod 3 and the motor 2 can be ensured while the magnetic rod 3 works stably.

In order to enhance the stability of each set of limiting rods 4 and balance the overall stability of the connection between the two sets of limiting rods 4 and the magnetic rod 3 and the motor 2, as shown in fig. 2 and 3, a positioning rod 211 may be further disposed on the outer wall of the iron core 21, the positioning rod 211 is parallel to the plane where the housing 31 is located, and two second fixing portions 43 of each set of limiting rods 4 are respectively fixed at two ends of the positioning rod 211.

The embodiment of the utility model provides an in, first fixed part 41 and second fixed part 43 all through the screw respectively with bar magnet 3 and motor A fixed connection, simple structure, the convenience is installed and removed, it is also comparatively convenient when maintenance or renewal part.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A fixing structure for a magnetic rod of an air pump is characterized by comprising a pump shell, a motor, a magnetic rod, a limiting rod, a first air cylinder assembly and a second air cylinder assembly;

the motor is arranged in the pump shell;

the magnetic rod penetrates through the pump shell, and two ends of the magnetic rod are respectively connected with the first air cylinder assembly and the second air cylinder assembly which are arranged outside the pump shell;

the magnetic rod is connected with a motor through a limiting rod, and the motor drives the magnetic rod to do reciprocating motion along a central shaft in the length direction of the magnetic rod.

2. The air pump magnetic rod fixing structure according to claim 1, wherein the motor is composed of a motor a and a motor B, which are respectively located on two opposite sides of the magnetic rod;

the limiting rod comprises a first fixing part, a connecting rod and a second fixing part, the first fixing part and the second fixing part are fixedly connected through the connecting rod, the first fixing part is fixed at the end part of the magnetic rod, and the second fixing part is fixed on the motor A.

3. The air pump magnetic rod fixing structure according to claim 2, wherein the motor a includes an iron core and a coil disposed in the iron core, the coil being disposed opposite to the magnetic rod, the second fixing portion being fixed to the iron core; the motor B and the motor A have the same structure.

4. An air pump magnetic rod fixing structure as claimed in claim 3, wherein the magnetic rod includes a housing and a magnetic sheet disposed in the housing;

the magnetic sheet is arranged opposite to the coil;

the shell comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially connected end to form a quadrilateral frame structure, wherein a first connecting piece is arranged on the first side plate, and the first side plate is connected with the first cylinder assembly through the first connecting piece; the third side plate is provided with a second connecting piece and is connected with the second air cylinder assembly through the second connecting piece;

the first fixing part is fixed on the first side plate or the third side plate, the first fixing part and the second fixing part are located on the same side of the coil, and the connecting rod is perpendicular to the plane where the shell is located.

5. The air pump magnetic rod fixing structure according to claim 4, wherein the first side plate, the second side plate, the third side plate, the fourth side plate, and the first connecting member and the second connecting member are integrally formed.

6. The air pump magnetic rod fixing structure according to claim 4, wherein there are two sets of the position-limiting rods, two for each set of the position-limiting rods, wherein the two first fixing portions of one set of the position-limiting rods are respectively disposed on both sides of the first connecting member, and the two first fixing portions of the other set of the position-limiting rods are respectively disposed on both sides of the second connecting member.

7. The air pump magnetic rod fixing structure of claim 6, wherein a positioning rod is arranged on the outer wall of the iron core, the positioning rod is parallel to the plane of the shell, and the two second fixing portions of each set of limiting rods are respectively fixed at two ends of the positioning rod.

8. The air pump magnetic rod fixing structure according to claim 2, wherein the first fixing portion and the second fixing portion are both fixedly connected to the magnetic rod and the motor a by screws, respectively.

9. An air pump magnetic rod fixing structure as claimed in any one of claims 2 to 8, wherein the first fixing portion, the link and the second fixing portion are integrally formed.