CN215720899U

CN215720899U - Rotating shaft mechanism capable of limiting angle for range hood

Info

Publication number: CN215720899U
Application number: CN202122014728.8U
Authority: CN
Inventors: 夏志生
Original assignee: JIANGSU MEIDA ELECTRICAL APPLIANCES CO Ltd
Current assignee: ZHEJIANG MEIDA INDUSTRIAL CO LTD
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-02-01
Anticipated expiration: 2031-08-25

Abstract

The utility model provides a but lampblack absorber is with pivot mechanism of restricted angle which characterized by: the rotary shaft mainly comprises a rotary shaft core, a rotary shaft main body and a rotary shaft fixing body, wherein a cylinder is arranged at the end part of the rotary shaft core, a screw hole for fixing is arranged on the cylinder, and a spring for adjusting the length is sleeved on the cylinder; the main body of the rotating shaft is sleeved on one end of the rotating shaft core, a hollow body with a matched shape for inserting the end part of the rotating shaft core is arranged in the main body of the rotating shaft, an unthreaded hole is arranged on the non-insertion end of the main body of the rotating shaft, and a connecting screw rod penetrates through the unthreaded hole to be connected with a fixing screw hole on a cylinder, so that the telescopic connection of the rotating shaft core and the main body of the rotating shaft is realized; the surface of the rotating shaft main body is provided with a V-shaped notch; the rotating shaft fixing body is sleeved on the rotating shaft main body, and an axial convex strip matched with the V-shaped notch to limit the rotating angle is arranged in the mounting hole of the rotating shaft fixing body. The utility model has simple structure and convenient manufacture, installation and use.

Description

Rotating shaft mechanism capable of limiting angle for range hood

Technical Field

The utility model relates to a range hood technology, in particular to a range hood accessory, and specifically relates to a rotating shaft mechanism capable of limiting an angle for a range hood.

Background

At present, a check valve plate is required to be used on the side-discharge type range hood, the check valve plate is sleeved on an installation shaft, two ends of the installation shaft are required to be inserted into an installation seat, and in order to prevent the check valve plate from rotating an overlarge angle, the angle of the check valve plate needs to be limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims to design a rotating shaft mechanism capable of limiting a rotating angle for a range hood, aiming at the problem that the rotating shaft mechanism for limiting the rotating angle is required in the safety process of the existing side-discharge type check valve plate.

The technical scheme of the utility model is as follows:

the utility model provides a but lampblack absorber is with pivot mechanism of restricted angle which characterized by: the main body of the rotating shaft core 1 is of a square structure, one end or two ends of the main body are provided with a cylinder 2 with the diameter smaller than the length of the short edge of the end face of the rotating shaft core, the cylinder 2 is provided with a screw hole 3 for fixing, and the cylinder 2 is sleeved with a spring 11 for adjusting the length; the rotating shaft main body 4 is sleeved on one end of the rotating shaft core 1, a hollow body with a matched shape is arranged in the rotating shaft main body 4, the end part of the rotating shaft core 1 is inserted into the hollow body, a unthreaded hole 6 is arranged on a non-insertion end of the rotating shaft main body 4, and a connecting screw rod penetrates through the unthreaded hole 6 to be connected with a fixing screw hole on the cylinder 2, so that the telescopic connection of the rotating shaft core and the rotating shaft main body is realized; the surface of the rotating shaft main body 4 is provided with a V-shaped notch 5; the rotating shaft fixing body 8 is sleeved on the rotating shaft main body 4, an axial convex strip 10 matched with the V-shaped notch 5 to limit the rotating angle is arranged in a mounting hole 9 of the rotating shaft fixing body 3, and the rotating shaft main body 4 can only rotate within the angle surrounded by the V-shaped notch under the action of the axial convex strip 10.

The two ends of the rotating shaft core 1 are of polygonal structures, and the middle part of the rotating shaft core is of a cylindrical structure.

The rotating shaft fixing body 8 is provided with a fixed preformed hole 7 fixedly connected with equipment.

The utility model has the beneficial effects that:

the utility model has simple structure and convenient manufacture, installation and use. The rotation range of the rotating shaft body 4 can be ensured to be within the range of the set value.

Drawings

Fig. 1 is a schematic view of the structure of a spindle core of the present invention.

Fig. 2 is a schematic structural view of the spindle body of the present invention.

Fig. 3 is a schematic structural view of the rotating shaft fixing body of the present invention.

Detailed Description

The utility model is further described below with reference to the figures and examples.

As shown in fig. 1-3.

A rotating shaft mechanism capable of limiting angles for a range hood mainly comprises a rotating shaft core 1, a rotating shaft main body 4 and a rotating shaft fixing body 8, wherein the rotating shaft core 1 is of a square structure, a cylinder 2 with the diameter smaller than the length of the short side of the end face of the rotating shaft core is arranged at one end or two ends (two ends in figure 1), a screw hole 3 for fixing is arranged on the cylinder 2, the rotating shaft core 1 is long in length during specific implementation, the rotating shaft core 1 is of a polygonal structure at two ends during specific implementation, the middle part of the rotating shaft core is of a cylinder structure, the two ends can be upset or turned into a square (or a polygon), and then the short cylinder 2 is machined on the square head. The cylinder 2 at one end is sleeved with a spring 11 for adjusting the length, and the other end is not required to be provided with the adjusting spring 11; the rotating shaft main body 4 is sleeved on one end of the rotating shaft core 1, a hollow body with a matched shape is arranged in the rotating shaft main body 4, the end part of the rotating shaft core 1 is inserted into the hollow body, a unthreaded hole 6 is arranged on a non-insertion end of the rotating shaft main body 4, and a connecting screw rod penetrates through the unthreaded hole 6 to be connected with a fixing screw hole on the cylinder 2, so that the telescopic connection of the rotating shaft core and the rotating shaft main body is realized; the surface of the rotating shaft main body 4 is provided with a V-shaped notch 5; the rotating shaft fixing body 8 is sleeved on the rotating shaft main body 4, an axial convex strip 10 which is matched with the V-shaped notch 5 to limit the rotating angle is arranged in a mounting hole 9 (with or without a bottom) of the rotating shaft fixing body 3, and the rotating shaft main body 4 can only rotate in the angle surrounded by the V-shaped notch under the action of the axial convex strip 10. The rotating shaft fixing body 8 is provided with two fixed preformed holes 7 fixedly connected with equipment.

During the use, can install the valve plate on the pivot core, with the hand with the one end after with pivot core 1 and the installation of pivot main part 4 compress tightly the back, aim at pivot fixed body 8 and mounting hole 9 back loose hand, pivot main part 4 relies on the elasticity of spring 11, release pivot fixed body 4, can insert fix in the mounting hole 9 of the pivot fixed body 8 of lampblack absorber mounted position department can, it is mainly that the length of pivot core normal condition is overlength, accessible spring 11 adjusts, guarantee the normal clear of installation. When the valve plate rotates, the rotating shaft core is driven to rotate, the rotating shaft core 1 drives the rotating shaft main body 4 to rotate, the rotating shaft main body 4 is limited by the convex strips 10 in the mounting holes 9 on the rotating shaft fixing body 8 and can only rotate within the range limited by the V-shaped notches 5, the rotating shaft fixing body 8 cannot rotate beyond the range limited by the V-shaped notches 5, and the valve plate also realizes fixed-angle rotation.

The parts not involved in the present invention are the same as or can be implemented using the prior art.

Claims

1. The utility model provides a but lampblack absorber is with pivot mechanism of restricted angle which characterized by: the rotary shaft mainly comprises a rotary shaft core (1), a rotary shaft main body (4) and a rotary shaft fixing body (8), wherein the rotary shaft core (1) main body is of a square structure, one end or two ends of the rotary shaft core main body are provided with cylinders (2) with the diameter smaller than the length of the short side of the end face of the rotary shaft core, the outer ends of the cylinders (2) are provided with screw holes (3) for fixing, and the cylinders (2) are sleeved with springs (11) for adjusting the length; the connecting screw rod is connected with a fixing screw hole on the cylinder (2) sleeved with the spring (11) through the unthreaded hole (6), so that the telescopic connection of the rotating shaft core and the rotating shaft main body is realized; a V-shaped notch (5) is arranged on the surface of the rotating shaft main body (4); the rotating shaft fixing body (8) is sleeved on the rotating shaft main body (4), an axial convex strip (10) matched with the V-shaped notch (5) to limit the rotating angle is arranged in a mounting hole (9) of the rotating shaft fixing body (8), and the rotating shaft main body (4) can only rotate within the angle surrounded by the V-shaped notch under the action of the axial convex strip (10).

2. The angle-limitable spindle mechanism for range hoods of claim 1, wherein: the two ends of the rotating shaft core (1) are of polygonal structures, and the middle part of the rotating shaft core is of a cylindrical structure.

3. The angle-limitable spindle mechanism for range hoods of claim 1, wherein: the rotating shaft fixing body (8) is provided with two fixed preformed holes (7) fixedly connected with equipment.