CN214743202U

CN214743202U - Novel linear type air pump

Info

Publication number: CN214743202U
Application number: CN202023103110.0U
Authority: CN
Inventors: 吴德忠; 潘辉; 许剑忠
Original assignee: Shenzhen Woxin Zhichuang Technology Co ltd
Current assignee: Shenzhen Woxin Zhichuang Technology Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-11-16
Anticipated expiration: 2030-12-18

Abstract

The utility model belongs to the technical field of portable air pumps, in particular to a novel linear air pump, which comprises a gear box provided with a gear box bottom shell, a driving gear connected with a motor output shaft and positioned in the gear box, a driven gear meshed with the driving gear and positioned in the gear box, and a driven shaft arranged in the gear box and connected with the driven gear; the output shaft of the motor is vertical to the driven shaft, the driven gear is positioned above the driving gear, and a gear ring arranged on the lower surface of the driven gear is meshed with the driving gear; the driven shaft is detachably connected with the gear box; the driven gear sleeve is arranged at the upper end of the driven shaft and fixedly connected with the driven shaft. Adopt the utility model discloses a structure compares with current like product, the utility model discloses a driven gear's installation is all very simple with the dismantlement process, is convenient for install and after-sales maintenance.

Description

Novel linear type air pump

Technical Field

The utility model relates to a portable air pump technical field specifically indicates a driven gear is convenient for dismouting, after sales easy maintenance's linear type air pump in it.

Background

At present, a portable linear air pump is used for inflating products such as vehicles, balls and air cushions, and has a wide application range, the structure of the portable linear air pump comprises a motor, a driving gear, a driven gear and the like which are arranged in a gear box, the conventional driving gear and the driven gear are arranged in a way that the driven gear is fixed below the driving gear, namely the driven gear is arranged on a bottom shell of the gear box, or the driving gear and the driven gear are arranged in the same plane; by adopting the mounting mode, when the driven gear, the rotating shaft connected with the driven gear, the bearing and other parts are damaged and need to be maintained, the driven gear can be dismounted only after the driving gear and other parts are completely dismounted, so that the dismounting and mounting are time-consuming and labor-consuming, and are very inconvenient; the installation structure in addition adopts the interference fit mode with the driven shaft to fix on the drain pan of gear box, unable dismantlement to lead to not maintaining, not only lead to use cost high, also can lead to the waste of resource.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's weak point, the utility model aims to provide a novel linear type air pump has solved current like product and has been difficult to the installation and dismantle to lead to the inconvenient problem of after-sales maintenance.

In order to achieve the above object, the utility model adopts the following technical scheme: a novel linear air pump comprises a gear box provided with a gear box bottom shell, a driving gear, a driven gear and a driven shaft, wherein the driving gear is connected with a motor output shaft and is positioned in the gear box; the output shaft of the motor is vertical to the driven shaft, the driven gear is positioned above the driving gear, and a gear ring arranged on the lower surface of the driven gear is meshed with the driving gear; the driven shaft is detachably connected with the gear box; the driven gear sleeve is arranged at the upper end of the driven shaft and fixedly connected with the driven shaft. Adopt this structure, driven gear is located the driving gear top, and the two is except realizing connecting through respective tooth meshing, does not have other relation of connection again, and when installation and dismantlement, the driving gear can not interfere driven gear, consequently, when needing to dismantle driven gear, pull down the driven shaft can, and driven shaft and gear box separable connection, for example adopt common threaded connection mode to connect to, driven gear's installation and dismantlement process are all very simple, be convenient for installation and after-sales maintenance.

Preferably, the driven gear is a crown gear.

Preferably, in order to install the bearing connected with the driven shaft, a bearing accommodating cavity is arranged in the bottom shell of the gear box, and the bearing connected with the lower end of the driven shaft is arranged in the bearing accommodating cavity.

Preferably, an axial threaded hole is provided in the lower end of the driven shaft.

Still further include a connecting bolt, the screw rod of connecting bolt inserts and locates in the axial threaded hole.

And a containing hole is formed in the bottom plate of the bottom shell of the gear box, and a fixing nut on the connecting bolt is positioned in the containing hole.

The beneficial technical effects are as follows: adopt the utility model discloses a structure, driven gear are located the driving gear top, and the two has no other relation of connection again except realizing connecting through respective tooth meshing, and when installation and dismantlement, the driven gear can not be interfered to the driving gear, consequently, when needing to dismantle driven gear, pull down the driven shaft can, and driven shaft and gear box separable connection for example adopt common threaded connection mode to connect to, compare with current like product, the utility model discloses a driven gear's installation and dismantlement process are all very simple, are convenient for install and after-sales maintenance.

Drawings

Fig. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is an exploded view of an embodiment of the present invention.

Detailed Description

In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 3, an embodiment of the present invention provides a novel linear air pump, including a gear case 1, which includes a gear case bottom shell 102; a driving gear 3 connected with the motor output shaft 2 and located in the gear box 1, a driven gear 4 engaged with the driving gear 3 and located in the gear box 1, and a driven shaft 5 disposed in the gear box 1 and connected with the driven gear 4.

As shown in fig. 1-2, the motor output shaft 2 and the driven shaft 5 are perpendicular to each other, so the driving gear 3 and the driven gear 4 are also perpendicular to each other; the driven gear 4 is positioned above the driving gear 3, and a gear ring 401 arranged on the lower surface of the driven gear 4 is meshed with the driving gear 3; the driven shaft 5 is detachably connected with the gear box 1; the driven gear 4 is sleeved at the upper end of the driven shaft 5 and fixedly connected with the driven shaft.

In this embodiment, the driven gear 4 is formed by integrally forming the toothed disc and the gear ring 401, that is, the toothed disc and the gear ring 401 are directly machined together without any connecting member.

Adopt this structure, driven gear 4 is located driving gear 3 top, the two is except realizing connecting through respective tooth meshing, no other relation of connection again, when installation and dismantlement, driving gear 3 can not interfere driven gear 4, consequently, when needing to dismantle driven gear 4, it can to pull down driven shaft 5, and driven shaft 5 and gear box 1 separable connection, for example adopt common threaded connection mode to connect, thereby, driven gear 4's installation and dismantlement process are all very simple, be convenient for installation and after-sales maintenance.

The driven gear 4 is a crown gear, but obviously, other gears, such as a helical gear, can be adopted as the driven gear as long as the vertical installation relationship between the driven gear 4 and the driving gear 3 can be satisfied.

As shown in fig. 2 to 3, here, in order to mount the bearing 6 connected to the driven shaft 5, a bearing receiving cavity 102a is provided in the gear housing bottom case 102, and the bearing 6 connected to the lower end of the driven shaft 5 is provided in the bearing receiving cavity 102 a.

The driven shaft 5 is connected with the gearbox 1 in a separable connection mode, namely, the two connected components can be nondestructively disassembled, such as common threaded connection, and in the embodiment, the driven shaft 5 is in threaded connection with the gearbox 1 so as to facilitate the installation and the disassembly of the driven shaft 5.

Specifically, an axial threaded hole 501 is formed in the lower end portion of the driven shaft 5, and the axial threaded hole 501 is a blind hole.

The connecting device further comprises a connecting bolt 7, and a screw 701 of the connecting bolt 7 is inserted into the axial threaded hole 501, as shown in fig. 2.

In order to accommodate the fixing nuts 702 of the connecting bolts 7, receiving holes (not shown) are provided in the bottom plate 102b of the gear housing bottom shell 102, and the fixing nuts 702 of the connecting bolts 7 are located in the receiving holes.

To sum up, adopt the utility model discloses a structure, driven gear 4 is located driving gear 3 top, and the two is except realizing connecting through respective tooth meshing, does not have other relation of connection again, when installation and dismantlement, and driven gear 4 can not interfered by driving gear 3, consequently, when needing to dismantle driven gear 4, pull down driven shaft 5 can, and driven shaft 5 and 1 separable connections of gear box, for example adopt common threaded connection mode to connect to, compare with current like product, the utility model discloses a driven gear 4's installation and dismantlement process are all very simple, be convenient for installation and after-sales maintenance.

In the above description, it should be noted that the terms "mounted," "connected," and the like are used in a broad sense, and for example, they may be fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and the connection may be internal to the two components.

It is to be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all embodiments, and that the appended drawings illustrate preferred embodiments of the present invention, but do not limit the scope of the invention. The present invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.

Claims

1. A novel linear air pump comprises a gear box provided with a gear box bottom shell, a driving gear, a driven gear and a driven shaft, wherein the driving gear is connected with a motor output shaft and is positioned in the gear box; the motor is characterized in that the output shaft of the motor is vertical to the driven shaft, the driven gear is positioned above the driving gear, and a gear ring arranged on the lower surface of the driven gear is meshed with the driving gear; the driven shaft is detachably connected with the gear box; the driven gear sleeve is arranged at the upper end of the driven shaft and fixedly connected with the driven shaft.

2. The novel linear air pump as claimed in claim 1, wherein the driven gear is a crown gear.

3. The linear air pump according to claim 2, wherein a bearing receiving cavity is formed in the bottom housing of the gear housing, and the bearing connected to the lower end of the driven shaft is provided in the bearing receiving cavity.

4. The linear air pump according to claim 3, wherein the driven shaft has a threaded axial hole at a lower end thereof.

5. The novel linear air pump according to claim 4, further comprising a connecting bolt, wherein a screw of said connecting bolt is inserted into said axial threaded hole.

6. The linear air pump according to claim 5, wherein a receiving hole is formed in the bottom plate of the bottom casing of the gear box, and the fixing nut of the connecting bolt is located in the receiving hole.