A magnetic head structure

Abstract

The present invention relates to a magnetic head structure, including a fixing plate, a fixing seat and a shell, wherein a mounting opening is arranged on the top wall of the shell, and a sensing chip passing through the mounting opening is arranged on the top of the fixing seat, and a notch I is arranged at the top corner of the bottom of the fixing seat, wherein a card block is arranged in the notch I, and a rotating shaft is arranged at the end of the card block in the notch I, and an elastic strip bonded to the card block is arranged on one side of the notch I, wherein a plurality of circles of limiting strips are also arranged on the outer wall of the fixing seat above the notch I; a notch II buckled on the corresponding card block is arranged at the bottom of the side wall of the shell, and a mounting plate fitted therewith is arranged at the top of the shell, wherein a through hole is arranged on the mounting plate, and a conical thorn extending into the through hole is arranged on the top wall of the shell, and a circle of hollow holes is arranged along the edge direction of the mounting opening at the middle area of ​​the mounting plate, wherein an inflatable filling layer is also suspended at the bottom of the mounting plate. The present invention can effectively protect the sensing chip.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic head production, and in particular to a magnetic head structure. Background Art

[0002] The magnetic head generally includes a mounting plate assembled with the banknote detector, a fixing seat is fixed above the mounting plate, a sensing chip is fixed on the top of the fixing seat, a shell is fixed on the outer peripheral side of the fixing seat, and the sensing chip is exposed from the top of the shell. The banknote is identified after the sensing chip contacts the banknote. However, the magnetic head is produced separately and then supplied to the banknote detector manufacturer for assembly. During transportation and assembly with the banknote detector, the exposed sensing chip is easily collided and worn, resulting in the scrapping of the sensing chip.

[0003] Specifically, a magnetic head with a new structure having patent number CN112669514B, while solving the above problems, still has the following defects. For example, during transportation or assembly, it is still easy for objects to come into contact with the sensing chip through the connecting groove, thereby affecting its safety, and thus failing to effectively protect the sensing chip. At the same time, during transportation, the outer shell is easily compressed, causing the limit block to engage with the limit groove or the fixing groove, and then the outer shell is covered on the magnetic head, causing the sensing chip to pass through the opening at the top of the outer shell, thereby failing to effectively protect the sensing chip. Summary of the invention

[0004] The object of the present invention is to provide a magnetic head structure.

[0005] The technical problem of the present invention is mainly solved by the following technical solutions:

[0006] A magnetic head structure includes a fixing plate, a fixing seat, and a shell for buckling the fixing seat on the fixing plate, wherein a mounting opening is provided on the top wall of the shell, and a sensing chip passing through the mounting opening is provided on the top of the fixing seat:

[0007] A rectangular notch I is provided at the top corner of the bottom of the fixing seat, wherein a block extending to the outside is provided in the notch I, and a rotating shaft is provided at the end of the block in the notch I, and an elastic strip with one end bonded to the side wall of the block is provided in the side wall of the fixing seat on one side of the notch I, wherein a plurality of circles of limiting strips are also provided on the outer wall of the fixing seat above the notch I;

[0008] The bottom of the shell is provided with a circle of expansion grooves buckled on the fixing seat, wherein the bottom of the shell side wall is provided with a notch II buckled on the corresponding card block, and the side wall of the expansion groove is provided with a card slot buckled on the corresponding limit strip;

[0009] A mounting plate fitted therewith is arranged at the top of the shell, wherein a through hole is arranged on the mounting plate, and a conical thorn extending into the through hole is arranged on the top wall of the shell, a circle of hollow holes is arranged in the middle area of ​​the mounting plate along the edge direction of the mounting opening, and an inflatable filling layer is also suspended at the bottom of the mounting plate outside the sensing chip.

[0010] As a preferred solution, the vertical section of the card slot is a right-angled triangle, wherein one right-angled side of the card slot is connected to the expansion slot, and the other right-angled side of the card slot is located below, and the limit strip is matched in size to the corresponding card slot.

[0011] As a preferred solution, the elastic strip is contracted and pulled to rotate the card block in the notch I with the rotating axis as the center, so that one end thereof extends to the outside of the fixed seat and presses against the shell to prevent it from moving up and down on the fixed seat, thereby covering the sensing chip in the shell, and the mounting opening is sealed by the mounting plate to prevent the sensing chip from being exposed to the outside from the mounting opening.

[0012] As a preferred solution, the two groups of blocks on the same side are rotated to rotate in the notch I with the rotating shaft as the center and extend to the outer sides of the left and right ends of the fixing seat. At this time, the block pulls the elastic strip to stretch it, and the shell is squeezed downward so that it is buckled on the fixing seat and the notch II is buckled on the block, wherein the limit strip is embedded in the corresponding slot, and the downward-moving shell drives the mounting plate to squeeze the inflatable filling layer to deform it and embed it into the through hole. At this time, the conical thorn pierces the inflatable filling layer, deflates it, and shrinks it. Under the influence of the resistance of the sensing chip and the squeezing of the shell, the connections of the mounting plates on both sides of the hollow hole are broken and separated, so that part of the mounting plate in the opening formed by the multiple groups of hollow holes slides out of the mounting opening after separation and pressure, and the sensing chip is then exposed from the mounting opening.

[0013] As a preferred solution, a circle of grooves is provided on the top of the fixing plate outside the fixing seat, wherein a rectangular frame is provided in the groove, and a spring connected to the bottom of the rectangular frame and driving it to move upward is provided at the bottom of the groove, and a notch III corresponding to the card block is also provided at the top of the rectangular frame, wherein after the spring drives the rectangular frame to move upward, the notch III is buckled on the corresponding card block which is in a different state at this time.

[0014] The beneficial effect of the present invention is as follows: the present invention shrinks and pulls the card block through the elastic strip to make it rotate with the rotating shaft as the center, so that one end of the card block rotates to the outside of the front and rear ends of the fixing seat, and at this time the shell is buckled on the fixing seat and suspended in the air to cover the sensing chip in the shell, and at the same time the lower card slot fits with the upper limit strip to prevent the shell from separating from the fixing seat, and at this time the card block presses against the shell to prevent it from moving downward under the influence of external force, wherein the top wall of the shell presses against the top surface of the magnetic head in the shell through the mounting plate and the inflatable filling layer to prevent it from moving up and down, and at the same time the mounting plate seals the mounting opening to prevent the sensing chip from being exposed to the outside, thereby achieving the problem of preventing foreign objects from contacting the sensing chip through the mounting opening before transportation or assembly, and preventing the shell from moving downward under the influence of external force to push the sensing chip to slide out of the mounting opening, thereby causing the sensing chip to be exposed and affecting its safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention after assembly;

[0016] Figure 2 It is a schematic diagram of the structure of the present invention;

[0017] Figure 3 is a cross-sectional view of the fixing seat in the present invention when viewed from above;

[0018] Figure 4 yes Figure 3 Schematic diagram of the structure in another state;

[0019] Figure 5 is a bottom view of the housing in the present invention;

[0020] Figure 6 yes Figure 1 A partial enlarged view of the top of the middle shell;

[0021] Figure 7 yes Figure 1 The enlarged view of point A in the middle;

[0022] Figure 8 yes Figure 2 A partial enlarged view of the top of the middle shell;

[0023] Fig. 9 yes Figure 2 Enlarged view of point B in the middle.

[0024] In the figure: 1, fixing plate, 2, fixing seat, 3, shell, 4, installation opening, 5, sensing chip, 6, notch I, 7, card block, 8, rotating shaft, 9, elastic strip, 10, limit strip, 11, expansion slot, 12, notch II, 13, card slot, 14, mounting plate, 15, through hole, 16, conical thorn, 17, hollow hole, 18, inflatable filling layer, 19, groove, 20, rectangular frame, 21, spring, 22, notch III. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings. Example

[0026] A magnetic head structure includes a fixing plate 1, a fixing seat 2, and a shell 3 for buckling the fixing seat 2 on the fixing plate 1, wherein a mounting opening 4 is provided on the top wall of the shell 3, and a sensing chip 5 passing through the mounting opening 4 is provided on the top of the fixing seat 2:

[0027] A rectangular notch I6 is provided at each top corner of the bottom of the fixing seat 2, wherein a block 7 extending to the outside thereof is provided in the notch I6, and a rotating shaft 8 is provided at the end of the block 7 in the notch I6, and an elastic strip 9 with one end bonded to the side wall of the block 7 is provided in the side wall of the fixing seat 2 on one side of the notch I6, wherein a plurality of circles of limiting strips 10 are also provided on the outer wall of the fixing seat 2 above the notch I6;

[0028] The bottom of the shell 3 is provided with a circle of expansion grooves 11 buckled on the fixing seat 2, wherein the bottom of the side wall of the shell 3 is provided with a notch II12 buckled on the corresponding block 7, and the side wall of the expansion groove 11 is provided with a card slot 13 buckled on the corresponding limit strip 10;

[0029] A mounting plate 14 fitted therewith is arranged at the top of the shell 3, wherein the mounting plate 14 is provided with a through hole 15, and a conical thorn 16 extending into the through hole 15 is arranged on the top wall of the shell 3, a circle of hollow holes 17 is arranged in the middle area of ​​the mounting plate 14 along the edge direction of the mounting opening 4, and an inflatable filling layer 18 is also suspended at the bottom of the mounting plate 14 outside the sensor chip 5.

[0030] In this embodiment, the vertical section of the card slot 13 is a right triangle, wherein one right-angled side of the card slot 13 is connected to the expansion slot 11, and the other right-angled side of the card slot 13 is located at the bottom, and the limit strip 10 is matched with the corresponding card slot 13 in size.

[0031] The present invention is before assembly or during transportation, such as Figure 3As shown, the elastic strip 9 contracts and pulls the card block 7 to make it rotate around the rotating shaft 8 as the center, so that one end of the card block 7 rotates to the outer side of the front and rear ends of the fixing seat 2. At this time, the shell 3 is buckled on the fixing seat 2 and suspended in the air to cover the sensing chip 5 in the shell 3. At the same time, the lower card slot 13 fits with the upper limit strip 10 to prevent the shell 3 from separating from the fixing seat 2. At this time, the card block 7 presses against the shell 3 to prevent it from moving downward under the influence of external force, wherein the top wall of the shell 3 presses against the top surface of the magnetic head in the shell 3 through the mounting plate 14 and the inflatable filling layer 18 to prevent it from moving up and down. At the same time, the mounting plate 14 seals the mounting opening 4 to prevent the sensing chip 5 from being exposed to the outside, thereby achieving the problem of preventing foreign objects from contacting the sensing chip 5 through the mounting opening 4 before transportation or assembly, and preventing the shell 3 from moving downward under the influence of external force to push the sensing chip 5 to slide out of the mounting opening 4, thereby causing the sensing chip 5 to be exposed and affecting its safety.

[0032] During assembly, the two groups of blocks 7 on the same side are rotated to rotate in the notch I6 with the rotating shaft 8 as the center and extend to the outer sides of the left and right ends of the fixing seat 2. At this time, the block 7 pulls the elastic strip 9 to stretch it, and the shell 3 is pressed downward to make it buckled on the fixing seat 2. At the same time, the notch II12 is buckled on the block 7, preventing the block 7 from being pulled by the elastic strip 9 to extend to the front and rear ends of the fixing seat 2 and press against the shell 3 to affect its downward movement. The limit strip 10 is embedded in the corresponding card slot 13, and the downward moving shell 3 drives the mounting plate 14 to squeeze the inflatable filling layer 18 to deform it and embed it into the through hole 15. At this time, the conical thorn 16 punctures the inflatable filling layer 18 and shrinks after deflation, and under the influence of the sensor chip 5 and the squeezing of the shell 3, the mounting plate connections on both sides of the hollow hole 17 are thin and easy to break and separate after being compressed, so that part of the mounting plate 14 in the opening formed by the multiple groups of hollow holes slides out of the mounting opening 4 after separation and compression, and the sensor chip 5 is then exposed from the mounting opening 4 for normal use. Since the conical thorn 16 is located in the through hole 15 and is blocked by the deflated inflatable filling layer 18, it will not contact the end face of the magnetic head, and will not affect its safety. At the same time, the deflated inflatable filling layer 18 can also protect it. Example

[0033] A magnetic head structure is basically the same as that of embodiment 1, except that a circle of grooves 19 are provided on the top of the fixing plate 1 outside the fixing seat 2, wherein a rectangular frame 20 is provided in the groove 19, and a spring 21 connected to the bottom of the rectangular frame 20 and driving it to move upward is provided at the bottom of the groove 19, and a notch III22 corresponding to the card block 7 is also provided on the top of the rectangular frame 20, wherein the spring 21 drives the rectangular frame 20 to move upward and then buckles the notch III22 on the corresponding card block 7 which is in a different state at this time.

[0034] When in use, the rectangular frame 20 is squeezed downward to compress the spring 21, thereby separating the notch III22 from the block 7. Then, the block 7 can be operated conveniently. When the notch III22 catches the block 7 at different positions, it can effectively prevent the block 7 from rotating around the rotating shaft 8 under the influence of the elastic strip 9 or other external forces, thereby playing a positive effect on improving the stability of the block 7.

[0035] The present invention is described in detail above, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A magnetic head structure, comprising a fixing plate, a fixing seat and a shell for buckling the fixing seat on the fixing plate, wherein a mounting opening is arranged on the top wall of the shell, and a sensing chip passing through the mounting opening is arranged on the top of the fixing seat, Features: A rectangular notch I is provided at the top corner of the bottom of the fixing seat, wherein a block extending to the outside is provided in the notch I, and a rotating shaft is provided at the end of the block in the notch I, and an elastic strip with one end bonded to the side wall of the block is provided in the side wall of the fixing seat on one side of the notch I, wherein a plurality of circles of limiting strips are also provided on the outer wall of the fixing seat above the notch I; The bottom of the shell is provided with a circle of expansion grooves buckled on the fixing seat, wherein the bottom of the shell side wall is provided with a notch II buckled on the corresponding card block, and the side wall of the expansion groove is provided with a card slot buckled on the corresponding limit strip; The top of the shell is provided with a mounting plate fitted therewith, wherein the mounting plate is provided with a through hole, and the top wall of the shell is provided with a conical thorn extending into the through hole, a circle of hollow holes is provided in the middle area of ​​the mounting plate along the edge direction of the mounting opening, wherein an inflatable filling layer is also suspended at the bottom of the mounting plate outside the sensor chip; By rotating the two groups of blocks on the same side, they are made to rotate in the notch I with the rotating shaft as the center and extend to the outer sides of the left and right ends of the fixing seat. At this time, the block pulls the elastic strip to stretch it, and by squeezing the shell downward, it is buckled on the fixing seat and the notch II is buckled on the block, wherein the limit strip is embedded in the corresponding slot, and the downward-moving shell drives the mounting plate to squeeze the inflatable filling layer to deform it and embed it into the through hole. At this time, the conical thorn punctures the inflatable filling layer and deflates it and shrinks, and under the influence of the sensing chip and the squeezing of the shell, the connections of the mounting plates on both sides of the hollow hole are broken and separated, so that part of the mounting plate in the opening formed by the multiple groups of hollow holes slides out of the mounting opening after separation and pressure, and the sensing chip is then exposed from the mounting opening.

2. A magnetic head structure according to claim 1, Features: The vertical section of the card slot is a right-angled triangle, wherein a right-angled side of the card slot is connected to the expansion slot, and the other right-angled side of the card slot is located at the bottom, and the limit strip is matched in size with the corresponding card slot.

3. A magnetic head structure according to claim 1, Features: The elastic strip contracts and pulls the card block to rotate in the notch I with the rotating shaft as the center, so that one end of the card block extends to the outside of the fixing seat and presses against the shell to prevent it from moving up and down on the fixing seat, thereby covering the sensing chip in the shell, and sealing the mounting opening with the mounting plate to prevent the sensing chip from being exposed from the mounting opening.

4. A magnetic head structure according to claim 1, Features: A circle of grooves is arranged on the top of the fixing plate outside the fixing seat, wherein a rectangular frame is arranged in the groove, and a spring connected to the bottom of the rectangular frame and driving it to move upward is arranged at the bottom of the groove, and a notch III corresponding to the card block is also arranged on the top of the rectangular frame, wherein after the spring drives the rectangular frame to move upward, the notch III is buckled on the corresponding card block which is in a different state at this time.

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