CN220585107U

CN220585107U - Three-gear button switch

Info

Publication number: CN220585107U
Application number: CN202322146783.1U
Authority: CN
Inventors: 姚航宇; 陈旭; 尚华; 李中欢; 周小川
Original assignee: Yibin Redstar Electronics Co ltd
Current assignee: Yibin Redstar Electronics Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-03-12
Anticipated expiration: 2033-08-10

Abstract

The utility model discloses a three-gear button switch in the field of switch equipment, which comprises a shell, a sliding shaft and a wiring assembly, wherein a sliding cavity is arranged in the shell, the wiring assembly is arranged at the bottom of the sliding cavity and comprises an upper fixed contact piece and a lower fixed contact piece, the sliding shaft is arranged in the sliding cavity in a sliding manner, an upper reset spring is arranged between the sliding shaft and the top of the sliding cavity, a lower reset spring is arranged between the sliding shaft and the bottom of the sliding cavity, and a movable contact piece which can be contacted with the upper fixed contact piece and the lower fixed contact piece is arranged at the lower end of the sliding shaft. When the electric switch is operated, the movable contact piece can be respectively conducted with the upper fixed contact piece and the lower fixed contact piece by pulling and pressing the sliding shaft, so that the switching of two circuit modes is realized, and the sliding shaft can be reset under the action of two springs after the hand is released, so that a circuit is disconnected. The whole switch has stable structure, convenient operation and smooth circuit switching, can reduce misoperation, and meets the requirements of normal work and special circuit switching of equipment in special scenes.

Description

Three-gear button switch

Technical Field

The utility model relates to the field of switch equipment, in particular to a three-gear button switch.

Background

The button switch is a switching device which realizes circuit on-off control and signal selection switching through man-machine interaction by a hand-held pressing function. The existing push-button switch usually only has two groups of action operation modes of pressing and returning, namely, only one or two circuit mode states can be switched synchronously, and the push-button switch can meet most of circuit control requirements. In many devices, multiple switches are typically used for different control requirements, but in some cases, multiple switches may not be convenient to operate, and misoperation may occur. In view of the above problems, some devices have proposed a push button switch with three circuit mode states of 1-0-1 for selection switching at the time of design, but the existing switch cannot meet the use requirements, so that it is necessary to study a new three-gear push button switch.

Disclosure of Invention

In order to overcome the defects that misoperation and the like are easy to occur when the circuit mode is switched by a plurality of switches in the prior art, the utility model aims to solve the technical problems that: the three-gear button switch is stable in structure and simple and convenient to operate.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a three-gear button switch, includes casing, sliding shaft and wiring subassembly, be equipped with the sliding chamber in the casing, the wiring subassembly sets up in sliding chamber bottom, including last fixed contact spare and lower fixed contact spare, the sliding shaft slides and sets up in the sliding chamber, is equipped with reset spring between sliding shaft and the sliding chamber top, is equipped with down reset spring with sliding chamber bottom between, the casing is worn out to the sliding shaft upper end, and the lower extreme is equipped with the movable contact spare that can be contacted with last fixed contact spare and lower fixed contact spare, and when last reset spring and lower reset spring were in balanced state, the movable contact spare was located between fixed contact spare and the lower fixed contact spare.

Further, the sliding shaft comprises an operation shaft with a connecting seat at the lower end and a moving shaft arranged at the lower end of the connecting seat, the upper return spring is abutted between the top opening of the sliding cavity and the upper end of the connecting seat, the lower return spring is abutted between the lower end of the connecting seat and the bottom of the sliding cavity, the upper end of the operation shaft penetrates through the sliding cavity, an operation button is arranged at the upper end of the operation shaft, and the moving contact piece is arranged at the lower end of the moving shaft.

Further, the sliding cavity is internally and fixedly provided with a limiting sleeve, the inner wall of the limiting sleeve is provided with a guide groove arranged along the vertical direction, and the connecting seat is provided with a guide block sliding along the guide groove.

Further, the guide groove comprises two guide grooves symmetrically arranged on the inner wall of the limit sleeve, the guide blocks are pin shafts penetrating through the connecting seat, two ends of each pin shaft are in sliding connection with the two guide grooves, the lower end of the connecting seat is provided with a mounting groove, the upper end of each movable shaft is inserted into the corresponding mounting groove, and the pin shafts penetrate through the movable shafts to fix the movable shafts on the connecting seat.

Further, a circle of annular groove is further formed in the inner wall of the sliding cavity, through holes are formed in the connecting seat and are arranged along the radial direction of the connecting seat, steel balls capable of being clamped into the annular groove are respectively arranged in the two ends of the through holes, the two steel balls are connected together through a connecting spring, and when the upper reset spring and the lower reset spring are in a balanced state, the steel balls are clamped in the annular groove.

Further, the wiring assembly further comprises a base, an insulating sleeve arranged above the base and binding posts fixed in the base, wherein the four binding posts are arranged on the upper fixed contact piece, the two conducting plates are arranged at the bottom of the insulating sleeve, the upper ends of the two binding posts are respectively connected with the two conducting plates, the two ends of the movable contact piece can be respectively contacted with the two conducting plates, and the lower fixed contact piece is arranged at the upper ends of the other two binding posts and is respectively opposite to the lower parts of the two ends of the movable contact piece.

Further, the upper end of wiring subassembly still is equipped with the backup pad, and the casing lower extreme is equipped with the external screw thread, is equipped with support nut on the external screw thread, support nut is pressed the fastening with base, insulating cover, backup pad and spacing cover in proper order and is fixed on the step face in the casing, reset spring's lower extreme butt is in the backup pad down.

Further, a positioning groove is formed in the side wall of the bottom of the shell, and bumps matched with the positioning groove are arranged on the limiting sleeve, the supporting plate, the insulating sleeve and the base.

The beneficial effects of the utility model are as follows: the sliding shaft is positioned by arranging a spring at the upper end and the lower end of the sliding shaft respectively, and the movable contact piece can be respectively connected with the upper fixed contact piece and the lower fixed contact piece by pulling and pressing the sliding shaft, so that the switching of two circuit modes is realized, and the sliding shaft can be reset under the action of the two springs after the hand is loosened, and a circuit is disconnected. The whole switch has stable structure, convenient operation and smooth circuit switching, can reduce misoperation, and meets the requirements of normal work and special circuit switching of equipment in special scenes.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

FIG. 2 is a side cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the arrangement of the terminal post of the present utility model;

FIG. 4 is a schematic view of the positioning slot of the housing of the present utility model;

the drawing is marked as 1-shell, 2-sliding shaft, 3-wiring component, 4-upper reset spring, 5-lower reset spring, 6-movable contact, 7-limit sleeve, 8-supporting plate, 9-supporting nut, 11-sliding cavity, 12-annular groove, 13-positioning groove, 21-operation shaft, 22-connecting seat, 23-moving shaft, 24-operation button, 25-guide block, 26-installation groove, 27-through hole, 28-steel ball, 29-connecting spring, 31-upper fixed contact, 32-lower fixed contact, 33-base, 34-insulating sleeve, 35-binding post, 71-guide groove.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

In the present utility model, directional terms such as up, down, left, right, front, rear, and azimuth are used to facilitate the description of the relative positional relationship between the members, and are not meant to refer specifically to the absolute position of the relative member or the inter-member relationship, but are used only to explain the relative positional relationship, movement, and the like between the members in a specific posture, and if the specific posture is changed, the directional terms are changed accordingly. In the present utility model, the terms "plurality", "a plurality" and the like refer to two or more.

As shown in fig. 1 and 2, the three-gear button switch of the utility model comprises a shell 1, a sliding shaft 2 and a wiring assembly 3, wherein a sliding cavity 11 is arranged in the shell 1, the wiring assembly 3 is arranged at the bottom of the sliding cavity 11 and comprises an upper fixed contact 31 and a lower fixed contact 32, the sliding shaft 2 is arranged in the sliding cavity 11 in a sliding manner, an upper return spring 4 is arranged between the sliding shaft 2 and the top of the sliding cavity 11, a lower return spring 5 is arranged between the sliding shaft 2 and the bottom of the sliding cavity 11, the upper end of the sliding shaft 2 penetrates out of the shell 1, a movable contact 6 which can be in contact with the upper fixed contact 31 and the lower fixed contact 32 is arranged at the lower end, and when the upper return spring 4 and the lower return spring 5 are in a balanced state, the movable contact 6 is positioned between the upper fixed contact 31 and the lower fixed contact 32. The utility model has the working process that under the natural state, the sliding shaft 2 is stabilized in the sliding cavity 11 under the combined action of the upper return spring 4 and the lower return spring 5, at the moment, the movable contact 6 is not contacted with the upper fixed contact 31 and the lower fixed contact 32, and the circuit is in an open state; when the sliding shaft 2 is pulled upwards, the movable contact 6 at the lower end of the sliding shaft is contacted with the upper fixed contact 31, so that a circuit connected with the upper fixed contact 31 is conducted; when the slide shaft 2 is pressed downward, the movable contact 6 at the lower end thereof is brought into contact with the lower fixed contact 32, thereby conducting a circuit connected to the lower fixed contact 32. Both circuits are automatically in an off state when not in operation. Therefore, the whole switch has stable structure and convenient operation, is particularly suitable for being used in severe environments, such as dark or underwater environments, and can be operated by touching the switch by hands, and if the two switches are controlled, misoperation is easy to occur.

For the convenience of manufacturing the sliding shaft 2 and installing two springs, the sliding shaft 2 can be divided into two parts, namely, the sliding shaft 2 comprises an operation shaft 21 with a connecting seat 22 at the lower end and a moving shaft 23 arranged at the lower end of the connecting seat 22, the upper return spring 4 is abutted between the top opening of the sliding cavity 11 and the upper end of the connecting seat 22, the lower return spring 5 is abutted between the lower end of the connecting seat 22 and the bottom of the sliding cavity 11, the upper end of the operation shaft 21 penetrates through the sliding cavity 11, an operation button 24 is arranged at the end of the operation shaft for the convenience of operating the sliding shaft 2, and the movable contact piece 6 is arranged at the lower end of the moving shaft 23.

The sliding shaft 2 and the shell 1 can be arranged in a structure form capable of rotating relatively and not rotating relatively. If the sliding shaft 2 is not limited to rotate, the upper fixed contact 31 and the lower fixed contact 32 can be arranged in a ring-shaped structure, so that the movable contact 6 can be contacted with the upper fixed contact and the lower fixed contact when rotating. However, in view of structural stability and sealing performance, it is preferable to provide the sealing member so as not to rotate relative to each other. In order to avoid the relative rotation of the sliding shaft 2 and the shell 1, a limiting sleeve 7 is fixedly arranged in the sliding cavity 11, a guide groove 71 arranged along the vertical direction is arranged on the inner wall of the limiting sleeve 7, and a guide block 25 sliding along the guide groove 71 is arranged on the connecting seat 22. The guide block 25 is restricted by the guide groove 71, so that the sliding shaft 2 can be prevented from rotating during the moving process.

Further, in order to improve the limiting effect, the guide groove 71 comprises two guide blocks symmetrically arranged on the inner wall of the limiting sleeve 7, the guide block 25 is a pin shaft penetrating through the connecting seat 22, two ends of the pin shaft are slidably connected with the two guide grooves 71, the lower end of the connecting seat 22 is provided with the mounting groove 26, the upper end of the moving shaft 23 is inserted into the mounting groove 26, and the pin shaft simultaneously penetrates through the moving shaft 23 to fix the moving shaft 23 on the connecting seat 22. The combination of the guide block 25 and the mounting of the movable shaft 23 can make the structure compact and stable.

Because only lean on upper reset spring 4 and lower reset spring 5 to carry out spacing to sliding shaft 2, can make sliding shaft 2 appear rocking the condition, not stable enough, therefore, the preferred scheme is still be equipped with round annular groove 12 on the inner wall of sliding chamber 11, be equipped with the through-hole 27 that sets up along its radial direction on the connecting seat 22, be equipped with a steel ball 28 that can block into annular groove 12 in the through-hole 27 both ends respectively, link together through connecting spring 29 between two steel balls 28, when upper reset spring 4 and lower reset spring 5 are in balanced state, steel ball 28 block in annular groove 12. When the sliding shaft 2 is pulled and pressed, a little more acting force is needed to be applied, so that the steel ball 28 can be separated from the annular groove 12, the sliding shaft 2 is not influenced in resetting, the steel ball 28 can be automatically clamped in when moving to the annular groove 12, and the stability of the sliding shaft 2 when a circuit is in an off state is improved.

For the specific structure of the wiring assembly 3, as shown in fig. 3, the wiring assembly 3 further includes a base 33, an insulating sleeve 34 located above the base 33, and four wiring posts 35 fixed in the base 33, the four wiring posts 35 include two conductive plates disposed at the bottom of the insulating sleeve 34, the upper ends of the two wiring posts 35 are respectively connected with the two conductive plates, two ends of the movable contact 6 can be respectively contacted with the two conductive plates, and the lower fixed contact 32 is disposed at the upper ends of the remaining two wiring posts 35 and is respectively opposite to the lower sides of the two ends of the movable contact 6. The four terminals 35 are arranged in a cross shape in general, and therefore the conductive plates need to be provided in an arc-shaped plate structure to ensure that the movable contact 6 can be brought into contact with the upper fixed contact 31 and the lower fixed contact 32.

For the connection mode of the wiring assembly 3 and the shell 1, the utility model adopts that the upper end of the wiring assembly 3 is also provided with a supporting plate 8, the lower end of the shell 1 is provided with external threads, the external threads are provided with supporting nuts 9, the supporting nuts 9 sequentially press and fix the base 33, the insulating sleeve 34, the supporting plate 8 and the limiting sleeve 7 on the step surface in the shell 1, and the lower end of the lower return spring 5 is abutted on the supporting plate 8. The base 33, the insulating sleeve 34, the supporting plate 8 and the limiting sleeve 7 can be tightly fixed in the shell 1 by using one supporting nut 9, and the assembly and the gap maintenance are convenient. The supporting plate 8 mainly plays a role in supporting the lower return spring 5, and the insulating sleeve 34 is generally made of high-performance insulating plastic, so that the structural strength is low, and the lower return spring 5 cannot be directly supported.

As shown in fig. 4, in order to ensure the installation and positioning of the casing 1 and the inside base 33, the insulating sleeve 34, the supporting plate 8 and the stop collar 7, a positioning groove 13 is formed on the side wall of the bottom of the casing 1, and the stop collar 7, the supporting plate 8, the insulating sleeve 34 and the base 33 are all provided with projections matched with the positioning groove 13. During installation, the limiting sleeve 7, the supporting plate 8, the insulating sleeve 34 and the base 33 are clamped in the positioning groove 13 through the convex blocks in sequence, and then are pressed and fixed through the supporting nut 9, so that the installation stability of internal parts can be ensured.

Claims

1. A three-gear push button switch, characterized by: including casing (1), sliding shaft (2) and wiring subassembly (3), be equipped with sliding chamber (11) in casing (1), wiring subassembly (3) set up in sliding chamber (11) bottom, including last fixed contact piece (31) and lower fixed contact piece (32), sliding shaft (2) slip sets up in sliding chamber (11), is equipped with reset spring (4) between sliding shaft (2) and sliding chamber (11) top, is equipped with reset spring (5) down between sliding chamber (11) bottom, casing (1) are worn out to sliding shaft (2) upper end, and the lower extreme is equipped with movable contact piece (6) that can be contacted with last fixed contact piece (31) and lower fixed contact piece (32), and when last reset spring (4) and lower reset spring (5) were in balanced state, movable contact piece (6) are located between last fixed contact piece (31) and lower fixed contact piece (32).

2. A three-position push button switch as defined in claim 1, wherein: the sliding shaft (2) comprises an operation shaft (21) with a connecting seat (22) arranged at the lower end and a moving shaft (23) arranged at the lower end of the connecting seat (22), the upper reset spring (4) is abutted between the top opening of the sliding cavity (11) and the upper end of the connecting seat (22), the lower reset spring (5) is abutted between the lower end of the connecting seat (22) and the bottom of the sliding cavity (11), the upper end of the operation shaft (21) penetrates through the sliding cavity (11) and is provided with an operation button (24) at the upper end, and the movable contact piece (6) is arranged at the lower end of the moving shaft (23).

3. A three-position push button switch as defined in claim 2, wherein: the sliding cavity (11) is internally and fixedly provided with a limiting sleeve (7), the inner wall of the limiting sleeve (7) is provided with a guide groove (71) arranged along the vertical direction, and the connecting seat (22) is provided with a guide block (25) sliding along the guide groove (71).

4. A three-position push button switch as defined in claim 3, wherein: the guide grooves (71) comprise two guide pins which are symmetrically arranged on the inner wall of the limiting sleeve (7), the guide blocks (25) are pin shafts penetrating through the connecting seat (22), two ends of each pin shaft are slidably connected with the two guide grooves (71), the lower ends of the connecting seat (22) are provided with mounting grooves (26), the upper ends of the movable shafts (23) are inserted into the mounting grooves (26), and the movable shafts (23) are fixed on the connecting seat (22) by the pin shafts penetrating through the movable shafts (23) at the same time.

5. A three-position push button switch as defined in claim 2, wherein: the sliding device is characterized in that a circle of annular groove (12) is further formed in the inner wall of the sliding cavity (11), through holes (27) are formed in the connecting seat (22) along the radial direction of the connecting seat, steel balls (28) capable of being clamped into the annular groove (12) are respectively arranged in the two ends of the through holes (27), the two steel balls (28) are connected together through a connecting spring (29), and when the upper reset spring (4) and the lower reset spring (5) are in a balanced state, the steel balls (28) are clamped in the annular groove (12).

6. A three-position push button switch according to any one of claims 2-5, characterized in that: the wiring assembly (3) further comprises a base (33), an insulating sleeve (34) arranged above the base (33) and wiring posts (35) fixed in the base (33), the wiring posts (35) comprise four wiring posts, the upper fixed contact pieces (31) are two conductive pieces arranged at the bottom of the insulating sleeve (34), the upper ends of the two wiring posts (35) are respectively connected with the two conductive pieces, the two ends of the movable contact piece (6) can be respectively contacted with the two conductive pieces, and the lower fixed contact piece (32) is arranged at the upper ends of the other two wiring posts (35) and is respectively opposite to the lower sides of the two ends of the movable contact piece (6).

7. A three-position push button switch as defined in claim 6, wherein: the upper end of wiring subassembly (3) still is equipped with backup pad (8), and casing (1) lower extreme is equipped with the external screw thread, is equipped with back nut (9) on the external screw thread, back nut (9) compress tightly base (33), insulating cover (34), backup pad (8) and stop collar (7) in proper order and fix on the step face in casing (1), the lower extreme butt of lower reset spring (5) is in backup pad (8).

8. A three-position push button switch as defined in claim 7, wherein: the side wall of the bottom of the shell (1) is provided with a positioning groove (13), and the limiting sleeve (7), the supporting plate (8), the insulating sleeve (34) and the base (33) are provided with lugs matched with the positioning groove (13).