CN115545141A - Shielding structure of magnetic head - Google Patents
Shielding structure of magnetic head Download PDFInfo
- Publication number
- CN115545141A CN115545141A CN202210970755.9A CN202210970755A CN115545141A CN 115545141 A CN115545141 A CN 115545141A CN 202210970755 A CN202210970755 A CN 202210970755A CN 115545141 A CN115545141 A CN 115545141A
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- box
- magnetic head
- plate
- outer box
- head main
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M7/00—Counting of objects carried by a conveyor
- G06M7/02—Counting of objects carried by a conveyor wherein objects ahead of the sensing element are separated to produce a distinct gap between successive objects
- G06M7/06—Counting of flat articles, e.g. of sheets of paper
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to a shielding structure of a magnetic head, which comprises a magnetic head main body positioned in a shielding box, wherein one end of the magnetic head main body extends to the outer side of the shielding box, the shielding box comprises an inner box and an outer box, a containing cavity is formed between the inner box and the outer box, a spring I for connecting the inner box and the outer box is arranged in the containing cavity, grooves are respectively arranged on the inner walls of the two sides of the opening end of the outer box, the tail end of the groove close to the opening of the outer box is outwards sunken to form an arched part, a sealing plate is arranged in each groove, mounting lugs extending into the openings of the arched parts are arranged on the two sides of one end of each sealing plate, rotating shafts penetrating through the corresponding two sets of mounting lugs are arranged in the arched parts, a rectangular notch opposite to the mounting lugs is arranged on the surface of the other end of each sealing plate, a connecting plate with an isosceles trapezoid-shaped cross section is arranged on the inner bottom wall of each notch along the length direction of the connecting plate, a sliding block matched with the connecting plate is also arranged in the notch, and a sliding block is arranged on the connecting plate. The invention has simple structure and convenient use.
Description
Technical Field
The invention relates to the technical field of magnetic heads, in particular to a shielding structure of a magnetic head.
Background
When the magnetic head of the currency count machine works, if the magnetic head is influenced by surrounding electromagnetism, the scanning is not accurate, so that the outer side of a general magnetic head body is wrapped with a shielding layer to ensure the scanning accuracy of the magnetic head body.
The shielding structure of the magnetic head of the existing cash register is inconvenient to replace after being installed and is not capable of completely protecting when not in use, for example, the shielding structure of the magnetic head of the cash register with the patent number of CN213211147U has the following defects while solving the problems, such as: after the magnetic head main body penetrates out of the shielding box, the two groups of blocking cover plates are positioned on two sides of the shielding box at the moment, so that the magnetic head main body is in an opening state, normal use of equipment or assemblies around the shielding box is easily influenced, the magnetic head main body is pushed by the extension of the spring to move towards the opening direction of the shielding box under the action of force application, the two groups of blocking cover plates are easily pressed and separated, and the magnetic head main body can not be protected by the shielding box due to the fact that the magnetic head main body cannot seal the opening of the shielding box.
Disclosure of Invention
The invention aims to provide a shielding structure of a magnetic head.
The technical problem of the invention is mainly solved by the following technical scheme:
a shielding structure of a magnetic head comprises a shielding box and a magnetic head main body positioned in the shielding box, wherein one end of the magnetic head main body extends to the outer side of the shielding box:
the shielding box comprises an inner box for fixing the magnetic head main body and an outer box sleeved on the inner box, wherein a containing cavity is formed between the inner box and the outer box, a spring I for connecting the inner box and the outer box is arranged in the containing cavity, grooves are formed in the inner walls of two sides of the opening end of the outer box, the tail end of each groove close to the opening of the outer box is outwards sunken to form an arched part, a sealing plate with one end extending to the opening of the arched part is arranged in each groove, mounting lugs extending into the opening of the arched part are arranged on two sides of one end of each sealing plate, a rotating shaft penetrating through two sets of corresponding mounting lugs is arranged in each arched part, a rectangular notch opposite to the positions of the mounting lugs is arranged on the other end of each sealing plate on the surface, a sliding groove with the cross section being isosceles trapezoid is arranged on the inner bottom wall of each notch along the length direction of the sliding groove, a connecting plate is further arranged in each notch, a sliding block which is located in each sliding groove and matched with the sliding block is arranged on each connecting plate, a connecting column is arranged on the top of one group of the connecting plates, and a connecting groove corresponding connecting column is arranged on the top of the other group of the connecting plates.
Preferably, the sum of the lengths of the two sets of sealing plates is less than the length of the opening of the outer box, wherein the width of the sealing plate is matched with the width of the opening of the outer box.
Preferably, the outer side wall of the inner box is provided with a protrusion, one end of the protrusion extends into the corresponding notch and contacts with the side wall of the corresponding notch, and the end face of the protrusion is attached to the end face of the corresponding connecting plate.
Preferably, the inner box corresponds and all is provided with the holding tank on two inner walls, wherein the slope is provided with the rotor plate in the holding tank, and the department both sides in the middle of the rotor plate are provided with the rotation axis that imbeds in the holding tank lateral wall, rotor plate one end is provided with the clamp plate with the contact of magnetic head main part end face, and wherein the rotor plate other end is provided with the bending plate, and is provided with the spring II who corresponds the lateral wall and be connected with the holding tank on the bending plate back, the inner box open end outside is provided with the rectangle frame of overcoat on the magnetic head main part, and wherein rectangle frame one end is provided with and runs through the inner box lateral wall and extend to the holding tank in the crushing bar, and overcoat has the nut on the holding tank in the crushing bar, the rectangle frame is located outer box and corresponds in the opening that constitutes between lateral wall and the two sets of closing plates.
Preferably, the back of the sealing plate is provided with a movable groove with a section in a major arc arch, wherein the outer wall of the inner box is provided with an arc-shaped groove corresponding to the movable groove, the movable groove is internally provided with a ball body with one end extending into the arc-shaped groove, and one end of the ball body is provided with a spring III connected with the corresponding side wall of the movable groove.
The invention has the beneficial effects that: when the magnetic head main body is used, the inner box can extrude the sealing plate to enable the sealing plate to be embedded into the groove, when the magnetic head main body is not used, the rotating sealing plate and the rotating connecting plate seal the bottom opening of the outer box, and further the magnetic head main body is sealed in the outer box to be protected, so that the sealing plate and the connecting plate can not protrude out of the outer side of the shielding box under the condition of use or nonuse, and further the normal use of other components outside the shielding box can not be interfered.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the present invention in use;
FIG. 3 is a schematic view of the structure of another state of the present invention;
FIG. 4 is an enlarged view at C in FIG. 3;
FIG. 5 is a cross-sectional view of the connecting plate of the present invention;
FIG. 6 is a schematic structural view of two sets of connection plates according to the present invention;
FIG. 7 is a bottom view of FIG. 6;
FIG. 8 is an enlarged view at A in FIG. 1;
FIG. 9 is an enlarged view at B in FIG. 1;
fig. 10 is a schematic view of the structure of fig. 9 in another state.
In the figure: 1. the shielding box, 101, interior box, 102, outer box, 2, magnetic head main part, 3, hold the chamber, 4, spring I,5, recess, 6, hunch portion, 7, closing plate, 8, installation ear, 9, pivot, 10, breach, 11, spout, 12, connecting plate, 13, slider, 14, spliced pole, 15, spread groove, 16, arch, 17, holding tank, 18, rotor plate, 19, rotation axis, 20, clamp plate, 21, bending plate, 22, spring II,23, rectangular frame, 24, extrusion stem, 25, nut, 26, movable slot, 27, arc wall, 28, spheroid, 29, spring III.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
A shielding structure of magnetic head includes a shielding box 1 and a magnetic head main body 2 in the shielding box, wherein one end of the magnetic head main body 2 extends to the outside of the shielding box 1:
the shielding box 1 comprises an inner box 101 for fixing the magnetic head main body 2 and an outer box 102 sleeved on the inner box 101, wherein a containing cavity 3 is formed between the inner box 101 and the outer box 102, a spring I4 for connecting the inner box 101 and the outer box 102 is arranged in the containing cavity 3, grooves 5 are formed in inner walls of two sides of an opening end of the outer box 101, an arching portion 6 is formed in the end of each groove 5 close to an opening of the outer box 102 in an outward concave mode, a sealing plate 7 is arranged in each groove 5, one end of each sealing plate extends to an opening of the arching portion 6, mounting lugs 8 extending into the openings of the arching portions 6 are arranged on two sides of one end of each sealing plate 7, a rotating shaft 9 penetrating through the two sets of mounting lugs 8 is arranged in each arching portion 6, a rectangular notch 10 opposite to the position of each mounting lug 8 is arranged on the surface of the other end of each sealing plate 7, a sliding groove 11 with an isosceles trapezoid cross section is arranged on the inner bottom wall of each notch 10 along the length direction of the rectangular notch, a connecting plate 12 is further provided with a connecting plate 12, a connecting column 13 matched with the sliding block is arranged in each sliding groove 11, one group of the connecting plate 12, and a connecting plate 14 is arranged on the top end of the other connecting plate 12, and a connecting column 15 is arranged on the other corresponding to the other group 14.
In this embodiment, the total length of the two sets of sealing plates 7 is smaller than the length of the opening of the outer box 102, wherein the width of the sealing plate 7 is matched with the width of the opening of the outer box 102.
The outer side wall of the inner box 101 is provided with a flexible bulge 16, one end of which extends into the corresponding notch 10 and contacts with the side wall of the notch, wherein the end surface of the bulge 16 is attached to the end surface of the corresponding connecting plate 12.
The invention uses the double-layer shielding box 1 composed of the inner box 101 and the outer box 102 to improve the shielding performance of the magnetic head main body 2, when the magnetic head main body 2 needs to be put into the shielding box 1 to prevent the magnetic head main body from contacting with the foreign object, and further improve the safety, the magnetic head main body 2 can be extruded to drive the inner box 101 to completely slide into the containing cavity 3, and simultaneously the spring I4 is extruded to shrink, as shown in fig. 2, under the extrusion losing of the inner box 101, the suspended end above the sealing plate 7 can drive the mounting ear 8 to rotate by taking the rotating shaft 9 as the center of the circle, so that the mounting ear can slide out from the groove 5 to the bottom opening of the outer box 102, as shown in fig. 3, one end of the sealing plate 7 rotating downwards 90 rotates into the opening of the arch part 6, then the arch part 6 abuts against the side wall of the sealing plate at the moment, the sealing plate 7 can effectively prevent the sealing plate 7 from continuing to rotate downwards, so that the two groups of sealing plate 7 cover the bottom openings of the outer box 102, because there is a larger gap between the sealing plates 7, the sealing plate 102 is positioned in the opening of the sealing plate to prevent the magnetic head main body 2 from sliding out of the outer box 2 and the magnetic head main body 2 from sliding out of the magnetic head main body 2, and the magnetic head main body 2 from sliding downwards, and the lifting tool 2, and the magnetic head main body 2 can not be pushed by the lifting tool, and the outer box 2.
Simultaneously remove connecting plate 12 and drive slider 13 and slide in spout 11 to this makes connecting plate 12 slide in breach 10, and then reduces the interval between two sets of connecting plates 12, and makes spliced pole 14 insert in spread groove 15, thereby with two sets of connecting plates 12 activity fixed, finally realizes through two sets of connecting plates 12 that the opening is sealed between with two sets of closing plates 7, reaches to play the guard action in order to promote its security to outer box 102 interior magnetic head main part 2.
When the magnetic head main body 2 needs to be exposed from the bottom opening of the outer box 101 for use, the steps are opposite to the above-mentioned manner, as shown in fig. 1, when the magnetic head main body 2 is in use, the inner box 101 can extrude the sealing plate 7 to be embedded into the groove 5, as shown in fig. 3, the rotating sealing plate 7 and the connecting plate 12 seal the bottom opening of the outer box 102, and further seal the magnetic head main body 2 in the outer box 102 for protection, so that the sealing plate 7 and the connecting plate 12 will not protrude outside the shielding box 1 regardless of use or non-use, and further will not interfere with normal use of other components outside the shielding box 1, and due to the influence of the arching part 6 abutting against the sealing plate 7 and the sealing plate 7 abutting against the magnetic head main body 2, the problem that the magnetic head main body 2 extrudes the sealing plate 7 to open the bottom opening of the outer box 101, and finally affects the safety of the magnetic head main body 2 can be effectively prevented.
Because of the influence of the notch 10 abutting against the protrusion 16 and the spring I4, the inner case 101 does not drive the magnetic head main body 2 to slide out from the bottom opening of the outer case 102, and when the inner case 101 drives the magnetic head main body 2 to completely slide into the accommodating cavity 3, the deformation of the flexible protrusion 16 after being pressed can effectively slide into the accommodating cavity 3 from the end face of the connecting plate 12.
As shown in fig. 3, the inclined wall of the sliding block 13 fixed by the isosceles trapezoid sliding chute 11 can effectively prevent the suspended connecting plate 12 from falling downward from the gap 10.
The back of the sealing plate 7 is provided with a movable groove 26 with a section in a major arc bow shape, wherein the outer wall of the inner box 101 is provided with an arc groove 27 corresponding to the movable groove 26, a ball 28 with one end extending into the arc groove 27 is arranged in the movable groove 26, and one end of the ball 28 is provided with a spring III29 connected with the corresponding side wall of the movable groove 26.
The ball 28 in the movable groove 26 is pushed to slide and be embedded into the arc groove 27 by the extension of the spring III29, so as to movably fix the inner case 101 at a specified position in the outer case 102, thereby preventing the problem that the inner case 101 can drive the magnetic head main body 2 to slide out from the bottom opening of the outer case 102, and when the inner case 101 drives the magnetic head main body 2 to completely slide into the accommodating cavity 3, the ball 28 extrudes the spring III29 to shrink and enable the ball 28 to slide out from the arc groove 27, thereby preventing the ball 101 from interfering the sliding of the inner case 101 into the accommodating cavity 3.
The inner box 101 is provided with accommodating grooves 17 on two corresponding inner walls, wherein the accommodating grooves 17 are provided with rotating plates 18 in an inclined manner, two sides of the middle of the rotating plates 18 are provided with rotating shafts 19 embedded in the side walls of the accommodating grooves 17, one end of each rotating plate 18 is provided with a pressing plate 20 in contact with the end surface of the magnetic head main body 2, the other end of each rotating plate 18 is provided with a bending plate 21, the back surface of each bending plate 21 is provided with a spring II22 connected with the side wall corresponding to the accommodating groove 17, the outer side of the open end of the inner box 101 is provided with a rectangular frame 23 sleeved on the magnetic head main body 2, one end of each rectangular frame 23 is provided with an extrusion rod 24 penetrating through the side wall of the inner box 101 and extending into the accommodating groove 17, a nut 25 is sleeved on the extrusion rod 24 in the accommodating groove 17, and the rectangular frame 23 is positioned in an opening formed between the corresponding side wall of the outer box 101 and the two sets of sealing plates 7.
When the magnetic head main body 2 needs to be installed in the inner case 101, as shown in fig. 10, only the rectangular frame 23 needs to be squeezed to enable the squeezing rod 24 to squeeze the bending plate 21, wherein the bending plate 21 squeezes the spring II22 to shrink, and at the same time, the bending plate 21 drives the rotating plate 18 to rotate around the rotating shaft 19, so as to drive the pressing plate 20 to completely slide into the accommodating groove 17, so that the magnetic head main body 2 is placed into the inner case 101, and then the squeezing rod 24 is loosened, the spring II22 expands and pushes the bending plate 21 to move, and further, the rotating plate 18 is driven to rotate around the rotating shaft 19, so as to drive the pressing plate 20 to slide out of the accommodating groove 17 and play a role in squeezing and locking the magnetic head main body 2, and the working procedure for taking out the magnetic head main body 2 is opposite to the installation procedure.
The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (5)
1. A shielding structure of magnetic head includes shielding box and magnetic head main body in it, one end of magnetic head main body extends to outside of shielding box, its character:
the shielding box includes the interior box of fixed magnetic head main part and the outer box on the box including the overcoat, wherein has constructed between interior box and the outer box and hold the chamber, wherein hold the intracavity and be provided with the spring I who is connected interior box and outer box, and all be provided with the recess on the inner wall of outer box open end both sides, wherein the recess end that is close to outer box opening part is outwards sunken to have hunch portion, and is provided with the closing plate that one end extends to hunch portion opening part in the recess, closing plate one end both sides are provided with the installation ear that extends to hunch portion opening part in, wherein are provided with the pivot that passes corresponding two sets of installation ears in the hunch portion, the closing plate other end is provided with the rectangle breach opposite with installation ear position on the surface, wherein is provided with the spout that the cross-section is isosceles trapezoid on the diapire in the breach along its length direction, and still is provided with the connecting plate in the breach, be provided with the slider that is located in the spout rather than the looks adaptation on the connecting plate, be provided with the spliced pole on one of group of connecting plate top, and be provided with the spread groove that the spliced pole corresponds on another group of connecting plate top.
2. A shield structure for a magnetic head according to claim 1, wherein: the total length of the two groups of sealing plates is less than the length of the opening of the outer box, wherein the width of the sealing plates is matched with the width of the opening of the outer box.
3. A shield structure for a magnetic head according to claim 1, wherein: the outer side wall of the inner box is provided with a bulge, one end of the bulge extends into the corresponding notch and contacts with the side wall of the notch, and the end face of the bulge is attached to the end face of the corresponding connecting plate.
4. A shield structure of a magnetic head according to claim 1, wherein: the interior box corresponds all to be provided with the holding tank on two inner walls, wherein the slope is provided with the rotor plate in the holding tank, and the rotor plate middle department both sides are provided with the rotation axis of embedding in the holding tank lateral wall, rotor plate one end is provided with the clamp plate with magnetic head main part end face contact, and wherein the rotor plate other end is provided with the bending plate, and is provided with the spring II who corresponds the lateral wall with the holding tank and be connected on the bending plate back, interior box open end outside is provided with the rectangle frame of overcoat in the magnetic head main part, and wherein rectangle frame one end is provided with and runs through interior box lateral wall and extend to the stripper bar in the holding tank, and the overcoat has the nut on the stripper bar in the holding tank, the rectangle frame is located the opening that constitutes between outer box correspondence lateral wall and the two sets of closing plates.
5. A shield structure of a magnetic head according to claim 1, wherein: the sealing plate back is provided with the movable slot that the cross-section is the major arc bow, wherein is provided with the arc wall that corresponds the movable slot on the inner box outer wall, and is provided with the spheroid that one end extends to in the arc wall in the movable slot, spheroid one end is provided with the spring III who corresponds the lateral wall with the movable slot and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210970755.9A CN115545141A (en) | 2022-08-13 | 2022-08-13 | Shielding structure of magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210970755.9A CN115545141A (en) | 2022-08-13 | 2022-08-13 | Shielding structure of magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115545141A true CN115545141A (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210970755.9A Pending CN115545141A (en) | 2022-08-13 | 2022-08-13 | Shielding structure of magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115545141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116206397A (en) * | 2023-04-28 | 2023-06-02 | 全南群英达电子有限公司 | Magnetic head shielding cover driving structure of banknote detector |
-
2022
- 2022-08-13 CN CN202210970755.9A patent/CN115545141A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116206397A (en) * | 2023-04-28 | 2023-06-02 | 全南群英达电子有限公司 | Magnetic head shielding cover driving structure of banknote detector |
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