CN111711026A

CN111711026A - Socket fixing device for instrument based on capacitance change

Info

Publication number: CN111711026A
Application number: CN202010606060.3A
Authority: CN
Inventors: 程婷
Original assignee: Hangzhou Henggu Media Technology Co ltd
Current assignee: Hangzhou Henggu Media Technology Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-09-25

Abstract

The utility model provides a socket fixing device for instrument based on electric capacity changes, relates to instrument technical field, which comprises a housin, the interior diapire fixedly connected with spring one of casing, the top fixedly connected with of spring one and the inner wall swing joint of casing have a fixture block, and the inner wall fixedly connected with magnetic path one at fixture block middle part, the spacing groove has all been seted up to the both sides of fixture block, and the inner wall of casing just is close to the equal fixedly connected with spring two in both sides of fixture block. This socket fixing device for instrument based on capacitance variation, cooperation through electromagnet and magnetic path one is used, when the inserted block inserts in the casing, the relative area of positive plate and negative plate is reduced to the minimum to the dielectric plate, make circuit voltage be less than the biggest access voltage of resistance, make the electromagnet circular telegram and produce magnetism, at this moment the fixture block under the inter attraction effect of electromagnet and magnetic path one with the draw-in groove joint, with inserted block and casing relatively fixed, thereby effectively prevent that the inserted block mistake from being extracted, the stability in use of instrument has been improved.

Description

Socket fixing device for instrument based on capacitance change

Technical Field

The invention relates to the technical field of instruments, in particular to a socket fixing device for an instrument based on capacitance change.

Background

Instruments and meters are instruments or devices for detecting, measuring, observing, and calculating various physical quantities, material components, physical parameters, and the like. The vacuum leak detector, the pressure gauge, the length measuring instrument, the microscope, the multiplier and the like belong to instruments and meters.

In a broad sense, the instruments can also have functions of automatic control, alarm, signal transmission and data processing, such as pneumatic regulating instruments and electric regulating instruments used in automatic control of industrial production processes, and distributed instrument control systems.

Present instrument and meter often can use the socket on plug and the instrument to connect in the use, effectively guarantees the normal use of instrument and meter, and when present plug and socket were pegged graft, it is the mode of direct grafting mostly to have to prevent mistake and pull out the device, will lead to the plug at this moment to peg graft unstably, when using instrument and meter, lead to the plug to drop from the socket easily, lead to the unable accurate measurement of instrument and meter, reduced the practicality of instrument and meter.

Therefore, we have provided a socket fixing device for instrument based on electric capacity changes to solve above problem, use through the cooperation of electromagnet and magnetic path one, prevent effectively that the inserted block mistake from extracting, improved the stability in use of instrument, use through the cooperation of stopper and spacing groove, reached the effect of further strengthening the fixture block joint, improved the practicality.

Disclosure of Invention

The invention adopts the following technical scheme for realizing the technical purpose: a socket fixing device for an instrument based on capacitance change comprises a shell, wherein a first spring is fixedly connected to the inner bottom wall of the shell, a clamping block is fixedly connected to the top of the first spring, the clamping block is movably connected to the inner wall of the shell, a first magnetic block is fixedly connected to the inner wall of the middle portion of the clamping block, limiting grooves are formed in two sides of the clamping block, a second spring is fixedly connected to the inner wall of the shell and two sides of the clamping block, the inner side of the second spring is fixedly connected with a limiting block movably connected to the inner wall of the shell, a second magnetic block is fixedly connected to the inner wall of the middle portion of the limiting block, a positive plate is fixedly connected to the inner wall of the left side of the shell, a negative plate symmetrical to the right side of the positive plate is fixedly connected to the inner wall of the right side of the shell, the inner walls of the two sides of the insert block are fixedly connected with dielectric plates.

The invention has the following beneficial effects:

1. this socket fixing device for instrument based on capacitance variation, cooperation through electromagnet and magnetic path one is used, when the inserted block inserts in the casing, the relative area of positive plate and negative plate is reduced to the minimum to the dielectric plate, make circuit voltage be less than the biggest access voltage of resistance, make the electromagnet circular telegram and produce magnetism, at this moment the fixture block under the inter attraction effect of electromagnet and magnetic path one with the draw-in groove joint, with inserted block and casing relatively fixed, thereby effectively prevent that the inserted block mistake from being extracted, the stability in use of instrument has been improved.

2. This socket fixing device for instrument based on electric capacity changes uses through the cooperation of stopper and spacing groove, and after fixture block and draw-in groove joint, at this moment the stopper can be under the inter attraction effort between magnetic path one and magnetic path two, with the spacing groove joint, effectively restrict the fixture block and shrink downwards to the effect of further strengthening the fixture block joint has been reached, has improved the practicality.

Furthermore, the shell is made of hard high-strength materials and does not have magnetic conductivity and electric conductivity, the first spring is an extension spring, and the diameter of the first spring is smaller than the width of the clamping block.

Furthermore, the fixture block is made of a hard high-strength material and does not have magnetic conductivity and electric conductivity, the first magnetic block is made of a hard high-strength material, and the size of the first magnetic block is smaller than that of the fixture block.

Furthermore, the depth of the limiting groove is smaller than half of the width of the clamping block, the limiting groove is triangular, and the second spring is an extension spring and the diameter of the second spring is smaller than the width of the limiting block.

Further, the limiting block is made of a hard high-strength material and does not have magnetic conductivity and electric conductivity, the second magnetic block is made of a rubidium magnet material, and the magnetism of the inner side of the second magnetic block is opposite to that of the outer side of the first magnetic block.

Further, the resistor is a voltage dependent resistor, the maximum path voltage of the resistor is larger than the minimum circuit voltage of the negative plate, and the magnetism of the bottom of the electromagnet is opposite to that of the top of the first magnetic block.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged partial view of portion A of FIG. 1;

FIG. 3 is a schematic diagram of a clamping structure of the clamping block of the present invention;

FIG. 4 is an enlarged partial view of the portion B in FIG. 3 according to the present invention.

In the figure: 1. a housing; 2. a first spring; 3. a clamping block; 4. a first magnetic block; 5. a limiting groove; 6. a second spring; 7. a limiting block; 8. a second magnetic block; 9. a positive plate; 10. a negative plate; 11. a resistance; 12. inserting a block; 13. a card slot; 14. an electromagnet; 15. a dielectric plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a socket fixing device for an instrument based on capacitance change comprises a housing 1, the housing 1 plays a role of fixing each component, the housing 1 is made of a hard high-strength material, the housing 1 does not have magnetic conductivity and electric conductivity, a spring 2 is an extension spring, the diameter of the spring 2 is smaller than the width of a clamping block 3, the inner bottom wall of the housing 1 is fixedly connected with the spring 2, the spring 2 plays a role of retracting the clamping block 3 into the housing 1, the top of the spring 2 is fixedly connected with the clamping block 3 movably connected with the inner wall of the housing 1, the clamping block 3 plays a role of relatively fixing the housing 1 and the clamping block 12, the clamping block 3 is made of a hard high-strength material, the clamping block 3 does not have magnetic conductivity and electric conductivity, the magnetic block 4 is made of a hard high-strength material, the size of the magnetic block 4 is smaller than that of the clamping block 3, the inner wall of the middle part of the clamping block 3 is, the first magnetic block 4 plays a role in magnetic transmission.

Spacing groove 5 has all been seted up to fixture block 3's both sides, spacing groove 5 plays the effect of 3 contractions of restriction fixture block, the degree of depth of spacing groove 5 is less than half of 3 width of fixture block and the shape of spacing groove 5 is the triangle-shaped, spring two 6 is extension spring and the diameter of spring two 6 is less than the width of stopper 7, the inner wall of casing 1 and the equal fixedly connected with spring two 6 in both sides that are close to fixture block 3, spring two 6 plays the effect of 7 contractions of stopper into casing 1, the inboard fixedly connected with of spring two 6 and casing 1's inner wall swing joint's stopper 7, stopper 7 plays the effect of 3 contractions of restriction fixture block, the material of stopper 7 does not have magnetic conductivity and electric conductivity for stereoplasm high strength material and stopper 7.

The material of the magnetic block II 8 is rubidium magnet material, the magnetism of the inner side of the magnetic block II 8 is opposite to that of the outer side of the magnetic block I4, the inner wall of the middle part of the limiting block 7 is fixedly connected with the magnetic block II 8, the magnetic block II 8 plays a role in magnetic transmission, the inner wall of the left side of the shell 1 is fixedly connected with a positive plate 9, the inner wall of the right side of the shell 1 is fixedly connected with a negative plate 10 which is symmetrical to the right side of the positive plate 9, according to the expression that C is S/d and rS/4 pi kd, the relative area of the positive plate 9 and the negative plate 10 can determine the size of capacitance, the capacitance is larger, the voltage passing through the negative plate 10 is larger, the inner wall of the bottom of the shell 1 is fixedly connected with a resistor 11, the resistor 11 plays a role in controlling the circuit communication condition of the electromagnet 14, the resistor 11 is a, the magnetism at the bottom of the electromagnet 14 is opposite to that at the top of the first magnetic block 4, the inserting block 12 is inserted in the middle of the shell 1, the inserting block 12 plays a role in fixing various components, the clamping groove 13 is formed in the bottom of the inserting block 12, the clamping groove 13 plays a role in relatively fixing the shell 1 and the inserting block 12, the electromagnet 14 is fixedly connected to the middle of the inserting block 12, the electromagnet 14 plays a role in magnetic transmission, the dielectric plates 15 are fixedly connected to the inner walls of the two sides of the inserting block 12, and the dielectric plates 15 play a role in changing the voltage of a circuit.

The working principle is as follows: when the insert 12 is completely inserted into the housing 1, the structures are as shown in fig. 1, at this time, the fixture block 3 is contracted into the housing 1 under the action of the first spring 2, at this time, the stopper 7 is contracted into the housing 1 under the action of the second spring 6, and at this time, the relative area of the positive plate 9 and the negative plate 10 is not reduced to the minimum by the dielectric plate 15, at this time, the circuit voltage passing through the negative plate 10 is greater than the maximum path voltage of the resistor 11, so the electromagnet 14 is in an open circuit state and does not generate magnetism;

when the insert block 12 is inserted into the housing 1, the relative area between the positive plate 9 and the negative plate 10 is reduced to the minimum by the dielectric plate 15, and the circuit voltage passing through the negative plate 10 is smaller than the maximum path voltage of the resistor 11, so the resistor 11 is in the path state, the electromagnet 14 is in the path state and generates magnetism, at this time, the first magnet block 4 moves upwards under the action of magnetic attraction of the electromagnet 14, the first magnet block 4 drives the fixture block 3 to move upwards, the fixture block 3 is clamped with the clamping groove 13, the insert block 12 and the housing 1 are relatively fixed together, and when the fixture block 3 is clamped, the limiting block 7 is clamped with the limiting groove 5 under the mutual attraction action of the first magnet block 4 and the second magnet block 8, the fixture block 3 is prevented from shrinking downwards, the clamping effect of the fixture block 3 is enhanced, and the anti-pulling effect is further.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a socket fixing device for instrument based on electric capacity changes, includes casing (1), its characterized in that: the inner bottom wall of the shell (1) is fixedly connected with a first spring (2), the top of the first spring (2) is fixedly connected with a clamping block (3) movably connected with the inner wall of the shell (1), the inner wall of the middle part of the clamping block (3) is fixedly connected with a first magnetic block (4), both sides of the clamping block (3) are respectively provided with a limiting groove (5), both sides of the inner wall of the shell (1) close to the clamping block (3) are respectively fixedly connected with a second spring (6), the inner side of the second spring (6) is fixedly connected with a limiting block (7) movably connected with the inner wall of the shell (1), the middle inner wall of the limiting block (7) is fixedly connected with a second magnetic block (8), the left inner wall of the shell (1) is fixedly connected with a positive plate (9), the right inner wall of the shell (1) is fixedly connected with a negative plate (10) symmetrical to, an insert block (12) is inserted in the middle of the shell (1), a clamping groove (13) is formed in the bottom of the insert block (12), an electromagnet (14) is fixedly connected to the middle of the insert block (12), and dielectric plates (15) are fixedly connected to the inner walls of the two sides of the insert block (12).

2. The socket fixing device for the instrument based on the capacitance change as claimed in claim 1, wherein: the shell (1) is made of hard high-strength materials, and the shell (1) does not have magnetic conductivity and electric conductivity.

3. The socket fixing device for the instrument based on the capacitance change as claimed in claim 1, wherein: the first spring (2) is an extension spring, and the diameter of the first spring (2) is smaller than the width of the clamping block (3).

4. The socket fixing device for the instrument based on the capacitance change as claimed in claim 1, wherein: the fixture block (3) is made of hard high-strength material, and the fixture block (3) does not have magnetic conductivity and electric conductivity.

5. The socket fixing device for the instrument based on the capacitance change as claimed in claim 1, wherein: the first magnetic block (4) is made of hard high-strength material, and the size of the first magnetic block (4) is smaller than that of the clamping block (3).

6. The socket fixing device for the instrument based on the capacitance change as claimed in claim 1, wherein: the depth of the limiting groove (5) is smaller than half of the width of the clamping block (3), the limiting groove (5) is triangular, and the diameter of the second spring (6) is smaller than the width of the limiting block (7).

7. The socket fixing device for the instrument based on the capacitance change as claimed in claim 1, wherein: the limiting block (7) is made of hard high-strength materials, the limiting block (7) does not have magnetic conductivity and electric conductivity, the magnetic block II (8) is made of rubidium magnet materials, and the magnetism of the inner side of the magnetic block II (8) is opposite to that of the outer side of the magnetic block I (4).

8. The socket fixing device for the instrument based on the capacitance change as claimed in claim 1, wherein: the resistor (11) is a voltage dependent resistor, the maximum path voltage of the resistor (11) is larger than the minimum circuit voltage passing through the negative plate (10), and the magnetism of the bottom of the electromagnet (14) is opposite to that of the top of the magnetic block I (4).