CN221040960U

CN221040960U - Mechanical timing switch

Info

Publication number: CN221040960U
Application number: CN202323089920.9U
Authority: CN
Inventors: 潘家秀; 李金旺; 陈华超
Original assignee: Huizhou Guanweixin Precision Hardware And Plastic Co ltd
Current assignee: Huizhou Guanweixin Precision Hardware And Plastic Co ltd
Priority date: 2023-11-16
Filing date: 2023-11-16
Publication date: 2024-05-28
Anticipated expiration: 2033-11-16

Abstract

The utility model discloses a mechanical timing switch, which relates to the technical field of metal spring plates and comprises a shell, wherein a gear ring is rotatably arranged in the shell, and a shifting block is fixedly connected to the outer wall of the gear ring; the inner wall meshing of gear ring is connected with multiunit internal gear, and the internal gear is at the outer wall annular equidistance setting of gear post. According to the utility model, the gear ring and the plurality of groups of internal gears are arranged in the shell, under the action of the spring, after a user dials the gear ring, the gear ring resets and rotates under the elastic action of the spring, and the internal gears are meshed with the inner wall of the gear ring, so that the internal gears rotate on the outer wall of the gear column, the accuracy and stability of the gear ring during resetting are ensured, accurate mechanical timing is convenient, compared with the traditional mechanical timing switch, the structure is simpler, the arrangement of electrode reeds is omitted, the accurate timing of pure machinery is realized, the assembly is convenient, and the production cost is low.

Description

Mechanical timing switch

Technical Field

The utility model relates to the technical field of metal spring plates, in particular to a mechanical timing switch.

Background

The timing switch refers to an electronic element which enables a circuit to be opened, current to be interrupted or enables the current to flow to other circuits within a certain period of time based on time change, and is mainly divided into a mechanical timing switch, a motor-driven type timing switch, an electronic type timing switch and the like from the aspects of single-in single-out and double-in double-out, wherein the mechanical timing switch is generally composed of a knob, a contact reed, a spring, a contact wheel, a rotating shaft, an oil box and a resistance plate, and is used for timing on-off by adopting a clock principle.

In the prior art, the basic principle of a mechanical timing switch is much like a clock mechanism, when a rotating shaft is rotated, a spring is pressed, after the spring is released, a gear is dragged by taking the spring as motive power, a two-layer eccentric plastic timing cam is driven by the transmission speed change of a gear set, the rotation of an eccentric wheel is connected with or disconnected from a corresponding contact, the forward rotation, stop or reverse rotation of a motor is completed, and the time interval is controlled by the speed change of the rotation of the gear and the shape of the eccentric wheel.

The current mechanical timing switch is used for timing through a timing cam, a spring and electrode reeds, but the structure is required to be provided with a plurality of groups of electrode reeds to realize the forward rotation, stop or reverse rotation of a motor, and the mechanical timing switch has the advantages of complex timing structure, low production and assembly efficiency, inconvenient operation and incapability of realizing mechanical timing efficiently and simply.

Disclosure of utility model

The utility model aims to solve the defects that the existing mechanical timing switch needs to be provided with a plurality of groups of electrode reeds to realize the forward rotation, stop or reverse rotation of a motor, has a complex timing structure, low production and assembly efficiency and inconvenient operation, and cannot realize mechanical timing efficiently and simply.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The mechanical timing switch comprises a shell, wherein a gear ring is rotatably arranged in the shell, and a shifting block is fixedly connected to the outer wall of the gear ring;

The inner wall of the gear ring is connected with a plurality of groups of internal gears in a meshed manner, and the internal gears are annularly and equidistantly arranged on the outer wall of the gear column;

The bottom of gear ring and the tensile end fixed connection of clockwork spring, and the other end of clockwork spring is fixed the setting at the interior bottom wall of casing.

As a further description of the above technical solution:

the annular equidistant three groups of internal gears are arranged, and the three groups of internal gears are herringbone gear plates.

As a further description of the above technical solution:

The outer wall of herringbone gear disk corresponds to be provided with herringbone gear ring.

As a further description of the above technical solution:

A partition plate is arranged between the clockwork spring and the internal gear, and the partition plate is fixedly installed in the shell.

As a further description of the above technical solution:

the gear column is fixedly arranged on the surface of the partition plate.

As a further description of the above technical solution:

The shell is provided with a slot capable of accommodating the shifting block, and the slot is arranged in the shell in a C shape.

In conclusion, by adopting the technical scheme, the utility model has the beneficial effects that:

According to the utility model, the gear ring and the plurality of groups of internal gears are arranged in the shell, under the action of the spring, after a user dials the gear ring, the gear ring resets and rotates under the elastic action of the spring, and the internal gears are meshed with the inner wall of the gear ring, so that the internal gears rotate on the outer wall of the gear column, the accuracy and stability of the gear ring during resetting are ensured, accurate mechanical timing is convenient, compared with the traditional mechanical timing switch, the structure is simpler, the arrangement of electrode reeds is omitted, the accurate timing of pure machinery is realized, the assembly is convenient, and the production cost is low.

Drawings

FIG. 1 is a schematic perspective view of a mechanical timing switch according to the present utility model;

FIG. 2 is a schematic diagram of an exploded structure of a mechanical time switch according to the present utility model;

FIG. 3 is a schematic side sectional view of a mechanical time switch according to the present utility model;

Fig. 4 is a schematic top sectional view of a mechanical time switch according to the present utility model.

Legend description:

A housing; 2. a gear ring; 3. a shifting block; 4. an internal gear; 5. a gear post; 6. a clockwork spring; 7. a partition board.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a mechanical timing switch comprises a shell 1, a gear ring 2, a shifting block 3, an inner gear 4, a gear column 5, a spring 6 and a baffle 7, wherein the gear ring 2 is rotatably arranged in the shell 1, the inner wall gear of the gear ring 2 is a herringbone tooth slot, meanwhile, the shifting of the gear ring 2 is considered to be convenient for a user, the shifting block 3 is fixedly connected to the outer wall of the gear ring 2, a slot capable of containing the shifting block 3 to move is formed in the shell 1, the slot is formed in a C shape in the shell 1, through the arrangement, the user can drive the gear ring 2 to rotate through the shifting block 3, the accurate shifting of the gear ring 2 is facilitated for the user according to timing requirements, in addition, scale marks are correspondingly arranged on the surface of the shell 1, the accurate shifting of the gear ring 2 is facilitated for the user, and under the action of the slot, the gear ring 2 is accurately and stably rotated in the shell 1, so that the mechanical timing is facilitated;

In order to realize the reset of gear ring 2 after the inside rotation of fluting, be convenient for carry out mechanical timing through the reset of gear ring 2, with the bottom of gear ring 2 and the tensile end fixed connection of clockwork spring 6, the gear ring 2 of being convenient for drives clockwork spring 6 and stretches when rotating, simultaneously, the other end of clockwork spring 6 is fixed to be set up at the interior bottom wall of casing 1, the stability and the reset effect of clockwork spring 6 installation have been ensured, the steady operation of clockwork spring 6 has been realized, specifically, be provided with baffle 7 between clockwork spring 6 and internal gear 4, and baffle 7 is at the inside fixed mounting of casing 1, the installation effect of clockwork spring 6 in casing 1 bottom has been realized.

Further, in order to realize spacing to the speed of restoring to the clockwork spring 6, surface fixed mounting at baffle 7 has gear post 5, simultaneously, the inner wall meshing at gear ring 2 is connected with multiunit internal gear 4, and internal gear 4 is at the outer wall annular equidistance setting of gear post 5, specifically, set up three group with internal gear 4 annular equidistance, and three group's internal gear 4 are the herringbone gear dish, then make the outer wall of herringbone gear dish set up to the herringbone tooth's socket correspondence of gear ring 2 inner wall, then make gear ring 2 when rotating, three group's internal gear 4 rotate around gear post 5 in the inside of casing 1, be convenient for carry out spacing and supplementary to the restoration of gear ring 2, guaranteed the equilibrium of gear ring 2 under spring 6 elasticity restoration, and through the herringbone setting of gear, the meshing degree is high, can transmit great moment of torsion, and the transmission precision is high, be favorable to improving the accuracy of time switch.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims

1. A mechanical chronograph switch comprising a housing (1), characterized in that: the gear ring (2) is rotatably arranged in the shell (1), and a shifting block (3) is fixedly connected to the outer wall of the gear ring (2);

The inner wall of the gear ring (2) is connected with a plurality of groups of internal gears (4) in a meshed manner, and the internal gears (4) are annularly and equidistantly arranged on the outer wall of the gear column (5);

The bottom end of the gear ring (2) is fixedly connected with the stretching end of the clockwork spring (6), and the other end of the clockwork spring (6) is fixedly arranged on the inner bottom wall of the shell (1).

2. A mechanical chronograph switch according to claim 1, wherein: the annular equidistant three groups of internal gears (4) are arranged, and the three groups of internal gears (4) are herringbone gear plates.

3. A mechanical chronograph switch according to claim 2, wherein: the outer wall of the herringbone gear plate is correspondingly provided with a herringbone gear ring (2).

4. A mechanical chronograph switch according to claim 1, wherein: a partition plate (7) is arranged between the clockwork spring (6) and the internal gear (4), and the partition plate (7) is fixedly installed in the shell (1).

5. A mechanical chronograph switch according to claim 1, wherein: the gear column (5) is fixedly arranged on the surface of the partition plate (7).

6. A mechanical chronograph switch according to claim 4, wherein: the shell (1) is provided with a slot capable of accommodating the shifting block (3) to move, and the slot is formed in a C shape in the shell (1).