CN107808795B - key position changing clamping table, high-current power switch and using method thereof - Google Patents
key position changing clamping table, high-current power switch and using method thereof Download PDFInfo
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- CN107808795B CN107808795B CN201711072832.4A CN201711072832A CN107808795B CN 107808795 B CN107808795 B CN 107808795B CN 201711072832 A CN201711072832 A CN 201711072832A CN 107808795 B CN107808795 B CN 107808795B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
- H01H27/06—Key inserted and then turned to effect operation of the switch
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Abstract
The invention discloses a key deflection clamping table, a high-current power switch and a use method thereof. The heavy-current power switch comprises a switch key, a switch main body, a movable contact, a fixed contact, a push rod and a spring, wherein the movable contact and the fixed contact are arranged in the switch main body, the push rod is in contact with the movable contact and the fixed contact, the spring is used for separating the movable contact and the fixed contact, the switch main body comprises an upper shell and a lower shell, an upward vertical pipe is arranged at the center of the upper shell and is communicated with the cavity of the lower shell, a key deflection clamping table and a mounting position sliding groove are arranged on the inner wall of the vertical pipe, the switch key comprises a handle at the upper end part and a key rod at the lower end part, and positioning clamping heads corresponding to the. The invention has simple structure, the key can not fall off in the switch state, and the switch key can be installed and taken down at will.
Description
Technical Field
The invention relates to the technical field of power switches, in particular to a key deflection clamping table, a high-current power switch and a using method of the high-current power switch.
Background
According to market demands, a high-current power switch is required to have a function that a key cannot fall down when used in a normal "on-off" state, and can be easily removed when the key is desired to be removed, and re-installation and use are not affected.
The key switches used at present have two technical schemes for meeting the requirements:
Firstly, a connecting band is added between the switch key and the shell, one end of the connecting band is sleeved on the shell, and the other end of the connecting band is buckled on the handle, so that the handle is not lost due to the fact that the handle is pulled by the connecting band in an 'off' state. However, the disadvantage is that it is not desirable to have the handle removable when the switch is in the "off" state. Chinese patent document CN202948869U (published 2013, 5/22) discloses a separation preventing member and a fixing case for connecting a switch main body and a switch key to prevent the key from separating, that is, a method of adding a connecting band between the switch key and a housing as described above.
Secondly, an elastic clamp spring is added on the shell to clamp the key rod, so that the key is not taken down, but the following problems are still solved:
1. When the clamp spring is installed on the upper shell, the upper shell is firstly punched, and scraps generated during punching are easy to fall into the switch main body, so that the switch performance is invalid;
2. when the key is required to be taken down, the clamp spring needs to be loosened by a tool to take down the key, which wastes time and labor;
3. When the handle is installed, the handle is pulled by strong force, the clamp spring is easily bent and deformed and damaged, and the clamp spring cannot play a role in clamping the main key rod when being installed again.
the switch that domestic switch producer produced, the handle can not realize that the off-state key does not drop under the condition of not dismantling the casing, and the key can be installed wantonly and take off the function.
Although foreign key switches, such as those used in a germany factory, have the function of mounting and removing a handle at will, the key switch is based on the principle that a circle of convex ribs are arranged on the inner wall of a shell, and a key can be caught by a key rod after being pushed in so that the key cannot be taken out.
In order to solve the defects of the prior art, the inventor has a basic idea of solving the technical problems through continuous search for many years, and then the technical scheme of the invention is finally formed by overcoming various technical problems through repeated tests.
disclosure of Invention
the technical problem to be solved by the invention is to provide a high-current power switch which is simple in structure, a key can not fall off in a switch state, and the key can be installed and taken down at will.
in order to solve the technical problems, the invention adopts the following technical scheme:
A designed key shifting clamping table comprises a semicircular pipe or a semicircular pipe, wherein one end of the semicircular pipe or the semicircular pipe is provided with two arc-shaped grooves with unequal heights at the groove bottoms, and the two arc-shaped grooves respectively correspond to the key in an opening state and a closing state, and are in smooth transition.
preferably, the arc-shaped groove is parabolic-like.
A high-current power switch is designed, which comprises a switch key, a switch main body, a movable contact and a fixed contact in the switch main body, a push rod for contacting the movable contact and the fixed contact, and a spring for separating the movable contact and the fixed contact, the switch key comprises a handle at the upper end part and a key rod at the lower end part, positioning clamping heads are arranged at two sides of the lower part of the key rod, the switch main body comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, the center part of the upper shell is provided with an upward vertical pipe (provided with a key hole) communicated with the cavity of the lower shell, one or two key position-changing clamping tables which are symmetrical relative to the center of the vertical pipe and correspond to the key hole and a mounting position sliding groove are arranged on the inner wall of the vertical pipe, and the depth of the arc-shaped groove corresponding to the opening state and the closing state respectively is matched with the height between the movable contact and the fixed contact.
furthermore, the size of the positioning clamping head corresponds to that of the mounting position sliding groove and the two arc-shaped grooves, a sealing ring clamping groove is formed in the middle of the key rod, and a sealing ring is sleeved in the sealing ring clamping groove.
Preferably, the upper shell and the lower shell are fixedly connected through ultrasonic welding.
Preferably, the positioning clamp is integrally formed with the key shaft.
as a further preferable technical solution of the present invention, the arc groove corresponding to the off state is provided at a certain angle clockwise with respect to the installation position chute, and the arc groove corresponding to the on state is provided at a certain angle clockwise with respect to the off state arc groove.
The invention also relates to a using method of the high-current power switch, which comprises the following steps:
(1) The positioning chuck faces to the chute at the installation position in the vertical pipe to place the switch key into the key hole of the switch main body;
(2) when the switch key is pressed to the push rod, the switch key is continuously pressed to be immovable, the switch key is rotated by a certain angle clockwise, and the positioning chuck is stopped in the arc-shaped groove in the closing state after the downward pressure on the switch key is released;
(3) the switch key is rotated clockwise by a certain angle, so that the positioning chuck is stopped in the arc-shaped groove at the position of the open state;
(4) the off-state position and the on-state position are switched via an angle corresponding to a counterclockwise and clockwise rotation;
(5) The switch key is rotated to an off state position, the switch key is pressed down until the switch key is not pressed, and the switch key is rotated counterclockwise by a certain angle to an installation position, so that the switch key can be taken out.
In the step (2), after the downward pressure on the switch key is released, the movable contact and the fixed contact are separated under the action of the spring, and the positioning clamping head is stopped in the arc-shaped groove in the closed state.
In the step (3), the switch key is rotated clockwise by a certain angle, the positioning chuck on the switch key presses the push rod down along with the smooth connection between the open-state arc-shaped groove and the closed-state arc-shaped groove, the movable contact is in contact with the static contact, and the positioning chuck stops at the open-state arc-shaped groove.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) The key has a simple structure, the key can not fall off in the on state and the off state, and the switch key can be installed and taken down at will;
(2) Structurally, the position-changing clamping table is arranged on the inner wall of the vertical pipe, so that the structure is simple, and the use performance of the switch is not influenced;
(3) Structurally, the key rod is sleeved with the sealing ring, so that the interior of the switch can be protected from moisture and dust, and the influence on the service performance of the switch caused by external factors is avoided;
(4) structurally, the positioning clamping head and the key rod are integrally formed, so that the processing procedures of parts can be reduced, the processing time is reduced, and the cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a high-current power switch;
FIG. 2 is a schematic cross-sectional view of the upper housing of the present invention;
FIG. 3 is a schematic view of the key structure of the present invention;
FIG. 4 is a schematic top view of the upper housing of the present invention;
fig. 5 is a schematic diagram illustrating the switching principle of the present invention.
In the figure, 1, a handle, 2, a positioning clamp, 3, a deflection clamp, 4, an arc-shaped groove in a closed state, 5, an arc-shaped groove in an open state, 6, a mounting position chute, 7, a sealing ring, 8, a push rod, 9, a vertical pipe, 10, an upper shell, 11, a lower shell, 12, a spring, 13, a static contact, 14, a movable contact, 15, a switch key and 16, a key rod are arranged.
Detailed Description
the following examples are intended to illustrate the present invention in detail and should not be construed as limiting the scope of the present invention in any way.
The components in the following embodiments can be selected or adapted by those skilled in the art according to specific application scenarios, and all such components are common components of such products unless otherwise specified.
Example 1: a key shift clamping table 3, see figure 2, comprises a semi-circular pipe or a semi-arc pipe, wherein one end of the semi-circular pipe or the semi-arc pipe is provided with two arc grooves with unequal heights at the groove bottoms, which respectively correspond to the on state and the off state of a key, and the two arc grooves are in smooth transition.
Specifically, the arcuate groove is parabolic-like.
A high-current power switch, see fig. 1 to 4, comprises a switch key 15, a switch main body, a movable contact 14 and a fixed contact 13 in the switch main body, a push rod 8 for contacting the movable contact 14 and the fixed contact 13, and a spring 12 for separating the movable contact 14 and the fixed contact 13, wherein the switch key 15 comprises a handle 1 at the upper end part and a key rod 16 at the lower end part, two sides of the lower part of the key rod 16 are provided with positioning chucks 2, the switch main body comprises an upper shell 10 and a lower shell 11, the upper shell 10 is fixedly connected with the lower shell 11, an upward vertical tube 9 communicated with the cavity of the lower shell 11 is arranged at the central part of the upper shell 10, two switch key deflection clamping platforms 3 which are symmetrical about the center of the vertical tube and a mounting position chute 6 are arranged on the inner wall of the vertical tube 9, and the depth of the arc-shaped groove corresponding to the open state and the closed state, respectively, is matched with the height between the movable contact 14 and the stationary contact 13.
The size of the positioning clamping head 2 corresponds to that of the chute 6 and the two arc-shaped grooves at the installation position, a sealing ring clamping groove is arranged in the middle of the key rod 16, and a sealing ring 7 is sleeved in the sealing ring clamping groove.
Specifically, the upper case 10 and the lower case 11 are fixedly connected by ultrasonic welding.
Specifically, the positioning clamp 2 is integrally formed with the key lever 16.
Specifically, the arc groove 4 corresponding to the off state is provided at 45 degrees clockwise with respect to the mounting position chute 6, and the arc groove 5 corresponding to the on state is provided at 90 degrees clockwise with respect to the off state arc groove 4.
the application method of the high-current power switch comprises the following steps:
(1) the positioning clamp head faces the mounting position sliding groove in the vertical pipe to place the switch key into the switch main body;
(2) when the switch key is pressed to the push rod, the switch key is continuously pressed to be immovable, the switch key is rotated by 45 degrees clockwise, and after the downward pressure on the switch key is released, the positioning chuck is stopped to be the arc-shaped groove in the closed state;
(3) The switch key is rotated by 90 degrees clockwise, and the positioning chuck is stopped at an arc-shaped groove in an open state;
(4) The off state position and the on state position are switchable between a counterclockwise and a clockwise rotation of 90 degrees;
(5) The switch key is rotated to an off state position, the switch key is pressed down until the switch key is not pressed, and the switch key is rotated anticlockwise by 45 degrees to an installation position, so that the switch key can be taken out.
In step (2), after the downward pressure on the switch key is released, the movable contact and the fixed contact are separated under the action of the spring, and the positioning clamping head is stopped in the arc-shaped groove in the closed state.
in the step (3), the switch key is rotated by 90 degrees clockwise, the positioning chuck on the switch key presses the push rod down along with the smooth connection between the open-state arc-shaped groove and the closed-state arc-shaped groove, the movable contact is in contact with the static contact, and the positioning chuck stops at the open-state arc-shaped groove.
example 2: the present embodiment has the same structure as embodiment 1, and specifically, the difference is that: the arc groove 4 corresponding to the off state is provided at 60 degrees clockwise with respect to the installation position chute 6, and the arc groove 5 corresponding to the on state is provided at 60 degrees clockwise with respect to the off state arc groove 4.
The application method of the high-current power switch comprises the following steps:
(1) the positioning clamp head faces the mounting position sliding groove in the vertical pipe to place the switch key into the switch main body;
(2) When the switch key is pressed to the push rod, the switch key is continuously pressed to be immovable, the switch key is rotated by 60 degrees clockwise, and after the downward pressure on the switch key is released, the positioning chuck is stopped to be an arc-shaped groove in a closed state;
(3) the switch key is rotated by 60 degrees clockwise, and the positioning chuck is stopped at an arc-shaped groove in an open state;
(4) The off-state position and the on-state position are switchable between counterclockwise and clockwise rotation by 60 degrees;
(5) Taking down the switch key: the switch key is rotated to the off state position, the switch key is pressed down until the switch key is not pressed, and the switch key is rotated 60 degrees anticlockwise to the installation position, so that the switch key can be taken out.
In step (2), after the downward pressure on the switch key is released, the movable contact and the fixed contact are separated under the action of the spring, and the positioning clamping head is stopped in the arc-shaped groove in the closed state.
In the step (3), the switch key is rotated by 60 degrees clockwise, the positioning chuck on the switch key presses the push rod down along with the smooth connection between the open-state arc-shaped groove and the closed-state arc-shaped groove, the movable contact is in contact with the static contact, and the positioning chuck is stopped at the open-state arc-shaped groove.
while the present invention has been described in detail with reference to the drawings and the embodiments, those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention, and a plurality of specific embodiments are formed, which are common variation ranges of the present invention, and will not be described in detail herein.
Claims (9)
1. a high-current power switch comprises a switch key, a switch main body, a movable contact and a fixed contact in the switch main body, a push rod for contacting the movable contact with the fixed contact, and a spring for separating the movable contact from the fixed contact, and is characterized in that the switch key comprises a handle at the upper end part and a key rod at the lower end part, positioning clamping heads are arranged at two sides of the lower part of the key rod, the switch main body comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, an upward vertical pipe communicated with a cavity of the lower shell is arranged at the central part of the upper shell, and one or two key displacement clamping tables symmetrical about the center of the vertical pipe and a mounting position sliding groove are arranged on the inner wall of the vertical pipe; the key displacement clamping table comprises a semi-circular pipe or a semi-circular pipe, two arc grooves with unequal heights at the bottoms of the grooves, which correspond to the key opening state and the key closing state respectively, are arranged at one end of the key displacement clamping table, and the two arc grooves are in smooth transition; the depth of the arc-shaped groove corresponding to the opening state and the closing state is matched with the height between the movable contact and the fixed contact.
2. A high current power switch according to claim 1, wherein said arcuate recess is parabolic-like.
3. A high current power switch according to claim 1, wherein the positioning clip is sized to correspond to the mounting position runner and the two arcuate grooves, and a seal ring slot is provided in the middle of said key rod, and a seal ring is fitted in said seal ring slot.
4. A high current power switch according to claim 1, wherein said upper and lower housings are fixedly connected by ultrasonic welding.
5. A high current power switch according to claim 1, wherein said locator clip is integrally formed with the key shaft.
6. A high current power switch according to claim 1, wherein said arc-shaped recess corresponding to the off-state is provided at a clockwise angle with respect to the mounting position runner, and said arc-shaped recess corresponding to the on-state is provided at a clockwise angle with respect to the off-state arc-shaped recess.
7. a method of using a high current power switch as claimed in claim 1, comprising the steps of:
(1) The positioning chuck of the switch key is opposite to the chute at the installation position in the vertical pipe, and the switch key is placed in the key hole of the switch main body;
(2) when the switch key is pressed to the push rod, the switch key is continuously pressed to be immovable, the switch key is rotated by a certain angle clockwise, and the positioning chuck is stopped in the arc-shaped groove in the closing state after the downward pressure on the switch key is released;
(3) The switch key is rotated clockwise by a certain angle, so that the positioning chuck is stopped in the arc-shaped groove in the open state;
(4) the off-state position and the on-state position are switched by rotating counterclockwise and clockwise by corresponding angles;
(5) the switch key is rotated to an off state position, the switch key is pressed down until the switch key is not pressed, and the switch key is rotated counterclockwise by a certain angle to an installation position, so that the switch key can be taken out.
8. a method for using a high current power switch according to claim 7, wherein in step (2), after the downward force on the switch key is released, the movable contact and the fixed contact are separated by the spring, and the positioning clip is stopped in the arc-shaped groove in the off state.
9. a method for using a high current power switch according to claim 7, wherein in step (3), the switch key is further rotated clockwise by a certain angle, the positioning clip on the switch key presses down the push rod along with the smooth connection between the arc-shaped groove in the on state and the arc-shaped groove in the off state, the movable contact contacts with the stationary contact, and the positioning clip stops at the arc-shaped groove in the on state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072832.4A CN107808795B (en) | 2017-11-03 | 2017-11-03 | key position changing clamping table, high-current power switch and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072832.4A CN107808795B (en) | 2017-11-03 | 2017-11-03 | key position changing clamping table, high-current power switch and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107808795A CN107808795A (en) | 2018-03-16 |
| CN107808795B true CN107808795B (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711072832.4A Active CN107808795B (en) | 2017-11-03 | 2017-11-03 | key position changing clamping table, high-current power switch and using method thereof |
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| Country | Link |
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| CN (1) | CN107808795B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204352U (en) * | 1986-06-19 | 1987-09-09 | 中国科学院南京地质古生物研究所 | Theft-defence automobile ignition switch |
| FR2710451B1 (en) * | 1993-09-24 | 1995-12-01 | Claude Bonnet | Circuit breaker comprising a movable spring cage and a removable operating handle. |
| CN102184792A (en) * | 2011-04-02 | 2011-09-14 | 新乡市光明电器有限公司 | Large-current power supply switch |
| CN207587607U (en) * | 2017-11-03 | 2018-07-06 | 新乡市光明电器有限公司 | Key conjugates chuck and large-current electric source switch |
-
2017
- 2017-11-03 CN CN201711072832.4A patent/CN107808795B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204352U (en) * | 1986-06-19 | 1987-09-09 | 中国科学院南京地质古生物研究所 | Theft-defence automobile ignition switch |
| FR2710451B1 (en) * | 1993-09-24 | 1995-12-01 | Claude Bonnet | Circuit breaker comprising a movable spring cage and a removable operating handle. |
| CN102184792A (en) * | 2011-04-02 | 2011-09-14 | 新乡市光明电器有限公司 | Large-current power supply switch |
| CN207587607U (en) * | 2017-11-03 | 2018-07-06 | 新乡市光明电器有限公司 | Key conjugates chuck and large-current electric source switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107808795A (en) | 2018-03-16 |
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