CN210925840U

CN210925840U - Key switch

Info

Publication number: CN210925840U
Application number: CN201921772367.XU
Authority: CN
Inventors: 王国良; 赵建余; 张国明
Original assignee: Shanghai Upun Industry Control System Co ltd
Current assignee: Shanghai Upun Industry Control System Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-07-03
Anticipated expiration: 2029-10-22

Abstract

The utility model provides a key switch, including electrical switch, lock core and lock body, lock body and electrical switch fixed connection, the lock core has a periphery that is the solid of revolution, be provided with round circumference's revolute pair and first axial limit structure between lock core and the lock body, be provided with between lock body and the lock core with key complex spring and lockpin, the front end of lock core passes the circular through-hole in the lock body leading flank and has a convex extension section forward, the cover is equipped with a roating seat on the extension section, be provided with round circumference's limit structure and second axial limit structure between extension section and the roating seat. The utility model discloses be provided with the roating seat, rotatory roating seat drives the lock core and rotates when inserting the key, avoids directly turning round the key, has reduced the possibility that the key warp, in addition, is provided with the manipulating arm on the roating seat, and roating seat both sides face is provided with the cambered surface, and is more convenient when making rotatory, and the edge of roating seat is provided with the chamfer, is difficult to the fish tail user during the use.

Description

Key switch

Technical Field

The utility model relates to the field of machinary, especially, relate to tool to lock, in particular to control electrical switch's tool to lock is a key switch particularly.

Background

In the prior art, a lock is installed on part of the electrical switch, and a lock cylinder in the lock is linked with an operating component in the electrical switch, such as a rotating shaft connected with a movable contact, so as to prevent the switch from being operated accidentally. When the number of the switch sections connected with the lock is large, the torque acting on the key needs to be increased to complete the operation, so that the key is easy to deform and even break.

SUMMERY OF THE UTILITY MODEL

The utility model provides a key switch, this kind of key switch will solve and install the technical problem that the key is out of shape easily among the prior art in the electrical switch of tool to lock.

The utility model provides a key switch, including electrical switch, lock core and lock body, electrical switch including the pivot of its movable contact of drive, lock body and electrical switch fixed connection, the lock core have one be the periphery of solid of revolution, be provided with a circular through-hole in the lock body front side, circular through-hole and lock core coaxial, the lock core sets up in the lock body, be provided with round circumferential revolute pair and first axial limit structure between lock core and the lock body, be provided with spring and lockpin with the key complex between lock body and the lock core, the spring with lockpin to the offset of lock core direction, be provided with key slot hole along its axial in the lock core, the front end of lock core passes the circular through-hole in the lock body front side and has a convex extension section forward, the extension section go up the cover and be equipped with a roating seat, the outside of roating seat along radially being provided with the operating arm, and a circumferential limiting structure is arranged between the extension section and the rotating seat.

Furthermore, the circumferential limiting structure comprises an axial groove arranged on the outer wall of the extension section and an axial lug arranged on the inner wall of the rotating seat, and the axial lug is matched with the axial groove.

Furthermore, the number of the axial grooves is four, the four axial grooves are evenly distributed in the circumferential direction of the outer wall of the extension section, the number of the axial protrusions is four, and the four axial protrusions are evenly distributed in the circumferential direction of the inner wall of the rotary seat.

Or, the circumferential limiting structure comprises an axial convex block arranged on the outer wall of the extension section and an axial groove arranged on the inner wall of the rotating seat, and the axial convex block is matched with the axial groove.

Furthermore, the number of the axial convex blocks is four, the four axial convex blocks are evenly distributed on the outer wall of the extension section in the circumferential direction, the number of the axial grooves is four, and the four axial grooves are evenly distributed on the inner wall of the rotary seat in the circumferential direction.

Furthermore, the edge of the rotating seat is provided with a chamfer.

Furthermore, two side surfaces of the rotating seat are cambered surfaces.

Furthermore, a second axial limiting structure is arranged between the extension section at the front end of the lock cylinder and the rotating seat.

Furthermore, the second axial limiting structure comprises a set screw, a threaded hole is formed in the outer wall of the rotating seat, and the tail end of the set screw penetrates through the threaded hole and is pressed on the outer wall of the extending section.

Compared with the prior art, the utility model, its effect is positive and obvious. The utility model discloses be provided with the roating seat, rotatory roating seat drives the lock core and rotates when inserting the key, avoids directly turning round the key, has reduced the possibility that the key warp, in addition, is provided with the manipulating arm on the roating seat, and roating seat both sides face is provided with the cambered surface, and is more convenient when making rotatory, and the edge of roating seat is provided with the chamfer, is difficult to the fish tail user during the use.

Drawings

Fig. 1 is a schematic structural diagram of a key switch of the present invention.

Fig. 2 is a schematic front view of a key switch according to the present invention.

Fig. 3 is a left side view structure diagram of the key switch of the present invention.

Fig. 4 is a schematic top view of a key switch according to the present invention.

Detailed Description

Example 1:

as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a key switch, which comprises an electrical switch, a lock cylinder 3 and a lock body 2, wherein the electrical switch comprises a rotating shaft for driving a moving contact of the electrical switch, the lock body 2 is fixedly connected with the electrical switch, the lock cylinder 3 has a periphery which is a revolving body, a circular through hole is arranged in the front side surface of the lock body 2, the circular through hole is coaxial with the lock cylinder 3, the lock cylinder 3 is arranged in the lock body 2, a circumferential revolute pair and a first axial limiting structure are arranged between the lock cylinder 3 and the lock body 2, a spring and a lock pin which are matched with a key are arranged between the lock body 2 and the lock cylinder 3, the spring biases the lock pin towards the lock cylinder 3, a key slot is arranged in the lock cylinder 3 along the axial direction, the front end of the lock cylinder 3 passes through the circular through hole in the front side surface of the, the extension section on the cover be equipped with a roating seat 4, roating seat 4 the outside radially be provided with operating arm 45, the extension section with roating seat 4 between be provided with circumferential limit structure and second axial limit structure.

Furthermore, the number of the axial grooves is four, the four axial grooves are evenly distributed in the circumferential direction of the outer wall of the extension section, the number of the axial protrusions is four, and the four axial protrusions are evenly distributed in the circumferential direction of the inner wall of the rotating seat 4.

Or, the circumferential limiting structure comprises an axial convex block 31 arranged on the outer wall of the extension section and an axial groove 44 arranged on the inner wall of the rotary seat, and the axial convex block 31 is matched with the axial groove 44.

Further, the number of the axial protrusions 31 is four, four of the axial protrusions 31 are evenly distributed in the circumferential direction of the outer wall of the extension section, the number of the axial grooves 44 is four, and four of the axial grooves 44 are evenly distributed in the circumferential direction of the inner wall of the rotary base 4.

Further, the edge of the rotating seat 4 is provided with a chamfer 41.

Furthermore, two side surfaces of the rotating seat 4 are cambered surfaces 42.

Further, the second axial limiting structure comprises a set screw 6, a threaded hole is formed in the outer wall of the rotating base 4, and the tail end of the set screw 6 penetrates through the threaded hole to be pressed on the outer wall of the extension section.

In particular, the matching structure, the spring and the lock pin of the electric switch, the lock body 2 and the lock cylinder 3 of the present invention all adopt the known technology in the prior art, and those skilled in the art are well aware of the matching structure and are not described herein again.

The working principle of the embodiment is as follows: the key 5 is inserted into the hole of the lock core 3, the rotary seat 4 is rotated, and the rotary seat 4 drives the lock core 3 to rotate through the cooperation of the axial groove 44 and the axial convex block 31, so that the switch is turned on and off.

Claims

1. A key switch comprises an electric switch, a lock cylinder (3) and a lock body (2), wherein the electric switch comprises a rotating shaft for driving a moving contact of the electric switch, the lock body (2) is fixedly connected with the electric switch, the lock cylinder (3) is provided with a periphery which is a revolving body, a circular through hole is formed in the front side surface of the lock body (2), the circular through hole is coaxial with the lock cylinder (3), the lock cylinder (3) is arranged in the lock body (2), a circumferential revolute pair and a first axial limiting structure are arranged between the lock cylinder (3) and the lock body (2), a spring and a lock pin which are matched with a key are arranged between the lock body (2) and the lock cylinder (3), the spring biases the lock pin towards the lock cylinder (3), and a key slot hole is formed in the lock cylinder (3) along the axial direction of the lock pin, and the key switch is characterized: the front end of the lock cylinder (3) penetrates through a circular through hole in the front side face of the lock body (2) and is provided with an extension section protruding forwards, a rotating seat (4) is sleeved on the extension section, an operating arm (45) is arranged on the outer side of the rotating seat (4) along the radial direction, and a circumferential limiting structure is arranged between the extension section and the rotating seat (4).

2. A key switch as defined in claim 1, wherein: the circumferential limiting structure comprises an axial groove formed in the outer wall of the extension section and an axial lug arranged on the inner wall of the rotating seat, and the axial lug is matched with the axial groove.

3. A key switch according to claim 2, wherein: the number of the axial grooves is four, the four axial grooves are evenly distributed in the circumferential direction of the outer wall of the extension section, the number of the axial lugs is four, and the four axial lugs are evenly distributed in the circumferential direction of the inner wall of the rotating seat (4).

4. A key switch as defined in claim 1, wherein: the circumferential limiting structure comprises an axial convex block (31) arranged on the outer wall of the extension section and an axial groove (44) arranged on the inner wall of the rotating seat, and the axial convex block (31) is matched with the axial groove (44).

5. A key switch according to claim 4, wherein: the number of the axial protrusions (31) is four, the four axial protrusions (31) are evenly distributed on the outer wall of the extension section in the circumferential direction, the number of the axial grooves (44) is four, and the four axial grooves (44) are evenly distributed on the inner wall of the rotary seat (4) in the circumferential direction.

6. A key switch as defined in claim 1, wherein: the edge of the rotating seat (4) is provided with a chamfer (41).

7. A key switch as defined in claim 1, wherein: two side surfaces of the rotating seat (4) are cambered surfaces (42).

8. A key switch as defined in claim 1, wherein: a second axial limiting structure is arranged between the extension section at the front end of the lock core (3) and the rotating seat (4).

9. A key switch as defined in claim 8, wherein: the second axial limiting structure comprises a set screw (6), a threaded hole is formed in the outer wall of the rotating seat (4), and the tail end of the set screw (6) penetrates through the threaded hole to be pressed tightly on the outer wall of the extension section.