CN219123549U - Interface device for film type pressure sensing sheet - Google Patents

Abstract

The application is applicable to the technical field of sensors, and particularly provides an interface device for a film type pressure sensing piece, wherein the interface device comprises a shell, a circuit board and a flip cover, the shell is provided with a containing cavity and a notch, and the containing cavity is communicated with the notch; the circuit board is provided with a butt joint port which is butted with the film type pressure sensing piece, the part of the circuit board provided with the butt joint port is exposed out of the notch, and the rest part of the circuit board is arranged in the accommodating cavity; the flip cover is arranged at the notch and is rotationally connected with the shell, and the notch is covered or exposed by rotating the flip cover. The connector device aims at solving the technical problems that the prior connector device is inconvenient to operate and the cover is easy to lose due to the fact that the connector is closed by the cover in a direct buckling mode.

Description

Interface device for film type pressure sensing sheet

Technical Field

The utility model relates to the technical field of sensors, in particular to an interface device for a film type pressure sensing sheet.

Background

With the development of industrial technology, a thin film pressure sensor is used as one of the sensors, and the thin film pressure sensor sheet is widely applied to the detection of industrial equipment, such as the field of wearable electronic equipment, the field of robots, the field of industrial detection, the field of scientific research, and the like, due to the advantages of light weight, good flexibility and ductility.

The film type pressure sensor comprises a film type pressure sensing sheet and an interface device which is in butt joint with the film type pressure sensing sheet, the film type pressure sensing sheet and the interface device form the film type pressure sensor, and the film type pressure sensing sheet transmits corresponding signals to an upper computer through the interface device by the butt joint interface device. In use, the thin film pressure sensing die is typically inserted into the interface device to electrically connect the thin film pressure sensing die to the interface device.

In order to protect the interface of the interface device when the interface device is not used, a way of directly buckling the cover and the interface device is generally adopted to cover the interface, the protection way is troublesome in that the cover needs to be opened or closed, and when the cover is opened, the cover and the interface device are not connected together, so that the cover is easy to lose.

Disclosure of Invention

The utility model aims to provide an interface device for a film type pressure sensing sheet, which aims to solve the technical problems that the prior interface device is inconvenient to operate and the cover is easy to lose due to the fact that the interface is closed by directly buckling the cover.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the interface device comprises a shell, a circuit board and a flip cover, wherein the shell is provided with a containing cavity and a notch, and the containing cavity is communicated with the notch; the circuit board is provided with a butt joint port which is in butt joint with the film type pressure sensing piece, a part of the circuit board provided with the butt joint port is exposed out of the notch, and the rest part of the circuit board is arranged in the accommodating cavity; the flip cover is arranged at the notch and is rotationally connected with the shell, and the notch is covered or exposed by rotating the flip cover.

In one embodiment, when the flip cover covers the notch, a gap is kept between the flip cover and the housing at a position corresponding to the docking port so as to form a channel for the thin film pressure sensing sheet to pass through, and the channel is communicated with the notch and the external space.

In one embodiment, the flip cover comprises a transverse plate and a vertical plate which are connected with each other, an included angle is formed between the transverse plate and the vertical plate, and one end of the transverse plate, which is far away from the vertical plate, is rotationally connected with the shell through a rotating shaft; the notch comprises a transverse opening and a vertical opening which are communicated, and the butt joint port is arranged corresponding to the vertical opening; when the flip covers the gap, the cross plate covers the transverse opening, and the riser covers at least a portion of the vertical opening to form the channel with the housing.

In one embodiment, the housing is provided with an abutting plate, and the abutting plate is arranged corresponding to the vertical opening and protrudes out of the abutting port; when the flip covers the notch, the vertical plate is abutted against the abutting plate to limit the vertical plate to rotate towards the abutting port.

In one embodiment, the housing is provided with a support portion, and the support portion is arranged on one side of the rotating shaft away from the vertical plate; when the flip cover exposes out of the notch, the transverse plate is in contact with the supporting portion, and the supporting portion supports the transverse plate so that the gravity center of the flip cover is located between the rotating shaft and the supporting portion.

In one embodiment, a first magnetic attraction piece is arranged at a position, close to the transverse opening, of the shell, and a first magnetic piece corresponding to the first magnetic attraction piece is arranged on the flip cover; when the turnover cover is turned over to expose the notch, the first magnetic attraction piece and the first magnetic piece are mutually magnetically attracted so that the turnover cover keeps a state of exposing the notch.

In one embodiment, the docking port includes a docking point and a movable pressing plate rotatably disposed relative to the docking point, and the rotation direction of the movable pressing plate is the same as that of the flip cover; the thin film type pressure sensing sheet is butted with the butt contact to realize electric conduction, and the movable pressing plate is matched with the butt contact to clamp the thin film type pressure sensing sheet between the movable pressing plate and the butt contact.

In one embodiment, the shell is provided with a second magnetic attraction piece, and the flip cover is provided with a second magnetic piece corresponding to the second magnetic attraction piece; when the flip cover covers the notch, the second magnetic attraction piece and the second magnetic piece are mutually magnetically attracted so that the flip cover keeps a state of covering the notch.

In one embodiment, the circuit board is further provided with an indicator light for indicating the working state of the interface device, a through hole is formed in the position, corresponding to the indicator light, of the shell, and the indicator light penetrates out of the through hole.

In one embodiment, the shell comprises an upper shell and a lower shell, the outer edge of the upper shell is provided with a concave part, and the outer edge of the lower shell is provided with a bulge at a position corresponding to the concave part; when the protrusion is arranged in the concave part and is abutted against the concave part, the upper shell is abutted against the lower shell to form the accommodating cavity and the notch.

The interface device for the film type pressure sensing piece has the beneficial effects that the turnover cover and the shell adopt a rotatable connection mode, and when the film type pressure sensing piece needs to be butted with the butt joint port, the turnover cover can be turned over to expose the notch so as to expose the butt joint port. When the interface device is not used, the notch can be covered by the flip cover to protect the docking port. Thus, the flip cover is connected with the shell, and the loss of the flip cover is avoided; meanwhile, the rotatable setting mode of the flip is more convenient for a user to operate and use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram 1 of an interface device according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram 2 of an interface device according to an embodiment of the present utility model;

FIG. 3 is a partial cross-sectional view of an interface device according to an embodiment of the present utility model shown in FIG. 1;

FIG. 4 is an enlarged schematic view of FIG. 3A;

FIG. 5 is a partial cross-sectional view 2 of an interface device according to an embodiment of the present utility model;

FIG. 6 is an enlarged schematic view of B in FIG. 5;

fig. 7 is a schematic structural diagram 3 of an interface device according to an embodiment of the present utility model;

fig. 8 is an enlarged schematic view of C in fig. 5.

In the figure:

1. a housing; 2. a circuit board; 3. a flip cover; 4. a channel;

11. a receiving chamber; 12. a notch; 13. an abutting plate; 14. a support part; 15. a through hole; 16. an upper housing; 17. a lower housing; 21. a docking port; 22. an indicator light; 23. a signal transmission port; 31. a cross plate; 32. a riser; 33. a rotating shaft; 34. a second magnetic member; 35. a mounting groove; 36. a groove;

121. a lateral opening; 122. a vertical opening; 161. a recessed portion; 171. a protrusion; 211. a butt contact; 212. a movable pressing plate.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the present utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 8, an interface device for a film pressure sensor chip is provided in an embodiment of the present utility model, and the interface device at least includes a housing 1, a circuit board 2 and a flip cover 3. The housing 1 is provided with a receiving chamber 11 and a notch 12, and the receiving chamber 11 and the notch 12 communicate with each other. The circuit board 2 is provided with a butt joint port 21 which is in butt joint with the film type pressure sensing piece, part of the circuit board 2 provided with the butt joint port 21 is exposed from the notch 12, and the rest part of the circuit board is arranged in the accommodating cavity 11; the flip cover 3 is placed at the notch 12 and is rotatably connected with the housing 1, and the notch 12 is covered or exposed by rotating the flip cover 3.

It can be appreciated that in this embodiment, a rotatable connection manner is adopted between the flip cover 3 and the housing 1, and when the thin film pressure sensing piece needs to be docked with the docking port 21, the flip cover 3 can be turned over to expose the notch 12 and thus expose the docking port 21, as shown in fig. 2; while when the interface device is not in use, the notch 12 may be covered by the flip cover 3 to protect the docking port 21, as shown in fig. 1. In this way, the flip cover 3 is connected with the shell 1, so that the flip cover 3 is not lost; meanwhile, the rotatable setting mode of the flip cover 3 is more convenient for a user to operate and use.

Furthermore, in order to better cover the notch 12 through the flip cover 3 to protect the docking port 21, the outer contour of the flip cover 3 may be adapted to the notch 12. When the flip cover 3 covers the notch 12, the flip cover 3 can completely cover the notch 12 to realize the closing of the notch 12, so as to realize better protection of the butt joint port 21; the flip cover 3 may also cover a portion of the notch 12 to leave a channel 4 for the thin film pressure sensing patch to pass through.

Referring to fig. 3 and 4, as an embodiment, the cover 3 covers a portion of the notch 12. Specifically, in the present embodiment, when the cover 3 covers the notch 12, a gap is maintained between the cover 3 and the housing 1 at a position corresponding to the docking port 21 to form a passage 4 for the thin film pressure sensing sheet to pass through, and the passage 4 communicates with the notch 12 and the external space. It will be appreciated that the external space is the space outside the interface device. That is, when the lid 3 covers the notch 12, the lid 3 does not completely cover the notch 12 at a position corresponding to the docking port 21.

It will be appreciated that when the thin film pressure sensing piece is docked with the docking port 21, the flip cover 3 needs to be opened, and after the thin film pressure sensing piece is docked with the docking port 21, the user can cover the notch 12 by flipping the flip cover 3 to protect the docking port 21. It will be appreciated that if the lid 3 completely covers the notch 12, the thin film pressure sensing patch will be squeezed by the lid 3 and the housing 1 when the lid 3 covers the notch 12. In the embodiment, the channel 4 is arranged, when the turnover cover 3 covers the notch 12, the thin film type pressure sensing sheet can extend out of the channel 4 and cannot be extruded by the turnover cover 3, so that the thin film type pressure sensing sheet is prevented from being damaged due to the fact that the turnover cover 3 extrudes the thin film type pressure sensing sheet; meanwhile, after the thin film type pressure sensing piece is in butt joint with the butt joint port 21, the gap 12 can be covered by the flip cover 3 to protect the butt joint port 21, so that the stability of the interface device in use is further improved.

Referring to fig. 4 to 6, as an embodiment, the flip cover 3 includes a cross plate 31 and a vertical plate 32 connected to each other, an included angle is formed between the cross plate 31 and the vertical plate 32, and an end of the cross plate 31 away from the vertical plate 32 is rotatably connected to the housing 1 through a rotation shaft 33. The notch 12 includes a lateral opening 121, a vertical opening 122, and an accommodating space located at a lateral portion of the vertical opening 122 at a lower portion of the lateral opening 121, and the docking port 21 is disposed corresponding to the vertical opening 122. When the flip cover 3 covers the notch 12, the cross plate 31 covers the transverse opening 121 and the riser 32 covers at least part of the vertical opening 122 to form the channel 4 with the housing 1.

As an embodiment, the angle between the transverse plate 31 and the vertical plate 32 is 90 °, and when the cover 3 covers the notch 12, the plate of the cover 3 in the horizontal direction is defined as the transverse plate 31, and the plate in the vertical direction is the vertical plate 32. The housing 1 has an upper surface and a side surface perpendicular to each other, and the upper surface and the side surface of the housing 1 are missing one piece and communicate to form a communicating lateral opening 121 and a vertical opening 122, respectively. When the cover 3 covers the notch 12, the transverse plate 31 of the cover 3 is flush with the upper surface of the housing 1, and the vertical plate 32 of the cover 3 is flush with the side surface of the housing 1.

Further, in order to ensure the stability of the flip cover 3 during rotation, the two opposite ends of the transverse plate 31 are respectively provided with a rotating shaft 33, and the two rotating shafts 33 are respectively connected with the housing 1, so that the flip cover 3 can rotate relative to the housing 1 by taking the axes of the two rotating shafts 33 as rotation axes.

It can be appreciated that the transverse opening 121 and the vertical opening 122 provided in this embodiment are openings with different orientations, and by providing the openings with different orientations, the thin film pressure sensing sheet is more convenient to dock with the docking port 21 in the state that the flip cover 3 is opened. The butt joint port 21 is arranged corresponding to the vertical opening 122, so that the insertion of the film type pressure sensing piece along the horizontal direction is facilitated, and the inconvenience of insertion in the vertical direction is avoided.

Referring to fig. 1, 2 and 6, further, in order to control the rotation range of the flip cover 3 and improve the user experience, in this embodiment, the housing 1 is further provided with an abutment plate 13, and the abutment plate 13 is disposed corresponding to the vertical opening 122 and protrudes out of the abutment port 21. When the cover 3 covers the notch 12, the riser 32 abuts against the abutment plate 13 to restrict rotation of the riser 32 toward the abutment port 21.

Specifically, the housing 1 is provided with two abutting plates 13, and the two abutting plates 13 are disposed in the notch 12 and are respectively disposed at two sides of the abutting port 21. The two abutting plates 13 protrude from the abutting port 21, that is, the two abutting plates 13 are closer to the vertical opening 122 relative to the abutting port 21. It will be appreciated that when the flap 3 is rotated to cover the gap 12, the riser 32 is rotated to cover the vertical opening 122, and when the riser 32 abuts the abutment plates 13, the riser 32 stops rotating towards the abutment port 21. Limiting the rotation of the riser 32 toward the docking port 21 prevents the riser 32 from continuing to rotate and collide with the docking port 21. More specifically, the abutment plate 13 has a plane parallel to the side of the housing 1, and when the lid 3 covers the notch 12, the plane parallel to the side of the housing 1 of the abutment plate 13 abuts against the riser 32 so that the outer side of the riser 32 is flush with the side of the housing 1 when the lid 3 is closed.

Further, in order to avoid excessive rotation of the lid 3 when the lid 3 is exposed to the notch 12, the housing 1 is further provided with a support portion 14, and the support portion 14 is disposed on a side close to the lateral opening 121. When the cover 3 is exposed from the notch 12, the cross plate 31 abuts against the support portion 14. It will be appreciated that continued rotation of the flip 3 may be limited by the support portion 14.

Further, in the state that the notch 12 is exposed, in order to avoid the flip cover 3 automatically turning over due to gravity, the user experience is reduced, and in this embodiment, the flip cover 3 is fixed by adjusting the center of gravity of the flip cover 3 or setting a connecting piece.

As an embodiment, the flip cover 3 is fixed by adjusting the center of gravity of the flip cover 3, as shown in fig. 6. Specifically, the supporting portion 14 is disposed on a side of the rotating shaft 33 away from the riser 32, and when the lid 3 is exposed from the notch 12, the supporting portion 14 supports the transverse plate 31 such that the center of gravity of the lid 3 is located between the rotating shaft 33 and the supporting portion 14.

It will be appreciated that when the lid 3 is supported by the support portion 14, the lid 3 will not automatically flip due to gravity since the center of gravity of the lid 3 is disposed between the rotation shaft 33 and the support portion 14. By adjusting the position of the center of gravity of the flip cover 3 or adjusting the relative position of the supporting portion 14 and the rotating shaft 33, the center of gravity of the flip cover 3 can be placed between the rotating shaft 33 and the supporting portion 14 when the supporting portion 14 supports the flip cover 3.

As another embodiment, the flip cover 3 is fixed by providing a connection member. Specifically, a first magnetic attraction piece (not shown) is disposed at a position of the housing 1 near the transverse opening 121, a first magnetic piece (not shown) corresponding to the first magnetic attraction piece is disposed on the flip cover 3, and when the flip cover 3 is flipped over to expose the notch 12, the first magnetic attraction piece and the first magnetic piece magnetically attract each other to keep the flip cover 3 in a state of exposing the notch 12.

Specifically, as an embodiment, the first magnetic member is disposed on the transverse plate 31 of the flip cover 3, and during the process of exposing the notch 12 of the flip cover 3, the transverse plate 31 gradually rotates to approach the housing 1, and at this time, the first magnetic member gradually approaches the first magnetic attraction member. It can be understood that the first magnetic member and the first magnetic member that approach gradually increase the magnetic attraction force between each other, so that the flip cover 3 can keep the state of exposing the notch 12 through the magnetic attraction force between the first magnetic member and the first magnetic member without random shaking. Of course, the housing 1 may also be provided with a first magnetic element, and the cover 3 is provided with a first magnetic element corresponding to the first magnetic element. The first magnetic member may be a magnet and the first magnetic attraction member may be a magnet or iron.

Referring to fig. 4 and 6, further, in order to enhance the stability of the flip cover 3 when covering the notch 12, a second magnetic member is further disposed on the housing 1, and the flip cover 3 is disposed with a second magnetic member 34 corresponding to the second magnetic member. When the flip cover 3 covers the notch 12, the second magnetic attraction piece and the second magnetic piece 34 magnetically attract each other so that the flip cover 3 keeps a state of covering the notch 12. It can be appreciated that the second magnetic attraction piece and the second magnetic piece 34 can further fix the position of the flip cover 3, so that the flip cover 3 is prevented from shaking randomly, and the use experience of a user is further improved.

Specifically, the inner side surface of the riser 32 is further provided with a mounting groove 35, the second magnetic member 34 is clamped in the mounting groove 35, the housing 1 is provided with a second magnetic member, and the second magnetic member is arranged at a position close to the vertical opening 122. In this way, during the covering of the notch 12 by the flap 3, the riser 32 gradually approaches the vertical opening 122, thereby gradually approaching the second magnetic element 34 to the second magnetic element. It will be appreciated that the second magnetic member 34 and the second magnetic member that are gradually close to each other gradually increase the magnetic attraction force therebetween, so that the flip cover 3 can maintain the state of covering the notch 12 without random shake by the magnetic attraction force between the second magnetic member and the second magnetic member 34. In this embodiment, as an implementation manner, the second magnetic member 34 may be a magnet, and the second magnetic member may be a magnet or iron.

Referring to fig. 1, further, in order to facilitate the user to turn the flip cover 3, the flip cover 3 is further provided with a groove 36, and the groove 36 is disposed on the riser 32. It can be appreciated that the user can better hold the flip cover 3 through the groove 36 when turning the flip cover 3, thereby facilitating the turning of the flip cover 3. Of course, a handle may be provided on the flip cover 3, specifically on the outer side of the riser 32, through which the flip cover 3 can be flipped.

Referring to fig. 6, in the present embodiment, the docking port 21 includes a docking point 211 and a movable platen 212 rotatably disposed with respect to the docking point 211. The thin film type pressure sensing sheet is butted with the butt contact 211 to realize electrical conduction, and the movable pressing plate 212 is matched with the butt contact 211 to clamp the thin film type pressure sensing sheet between the movable pressing plate 212 and the butt contact 211, so that the thin film type pressure sensing sheet is prevented from falling off.

As an embodiment, the movable platen 212 is in the same direction as the rotation of the flip cover 3. That is, the rotation axis of the movable platen 212 and the rotation axis of the flap 3 are parallel to each other. It will be appreciated that when the user opens the flip cover 3 to expose the docking port 21, the user needs to open the movable platen 212 to expose the docking point 211, or close the movable platen 212 to clamp the thin film pressure sensing sheet between the movable platen 212 and the docking point 211. While the turning direction of the movable pressing plate 212 is set to be the same as that of the flip cover 3 in the embodiment, so that the operation of a user is facilitated.

Referring to fig. 2 and fig. 7, as an embodiment, the circuit board 2 further includes a PCB board, components integrated on the PCB board, and an indicator light 22 for indicating the working state of the interface device, the housing 1 has a through hole 15 corresponding to the position of the indicator light 22, and the indicator light 22 passes through the through hole 15. The functions and connection modes of the components are arranged according to the specific functions of the interface device, and the embodiment of the utility model is not described in detail.

Specifically, the pilot lamp 22 sets up on the PCB board, and pilot lamp 22 has played the effect of instruction, and when pilot lamp 22 was bright, the people can observe. The indicator light 22 is used for indicating the abutting state of the film type pressure sensing piece and the abutting port 21 and/or the working state of the interface device.

The number of the indicator lamps 22 is not particularly limited in the embodiment of the utility model, and only one indicator lamp 22 can be arranged to reflect different working states of the interface device through different colors or states; the indicator light 22 may also be provided in plurality to reflect different operating states of the interface device by the indicator light 22 in different positions or by a combination of different indicator lights 22.

Further, when the interface device needs to be in communication connection with other devices, for example, when the interface device needs to be in communication connection with an upper computer or a computer, the interface device may set the signal transmission port 23 to realize communication connection between the interface device and the upper computer or the computer through a signal transmission line; the interface device can also be provided with a wireless docking device so as to realize communication connection with an upper computer or a computer through the wireless docking device.

As an embodiment, the circuit board 2 is further provided with a signal transmission port 23, the signal transmission port 23 is disposed at a side far away from the docking port 21, and an external device such as an upper computer is docked with the signal transmission port 23 through a signal transmission line to obtain detection data of the interface device.

Referring to fig. 5, 6 and 8, as an embodiment, the housing 1 includes an upper case 16 and a lower case 17, and the upper case 16 and the lower case 17 are both in a case shape and have an inner cavity. The upper and lower housings 16 and 17 are butted to form the accommodation chamber 11 and the notch 12.

Specifically, in this embodiment, the upper casing 16 and the lower casing 17 may be rectangular, the sections of the upper casing 16 and the lower casing 17 are rectangular, the outer side of the transverse plate 31 is flush with the upper surface of the upper casing 16 when the cover 3 covers the notch 12, and the outer side of the vertical plate 32 is flush with the side of the upper casing 16. Thus, when the notch 12 is covered by the flip cover 3, the outer surface of the flip cover 3 is flush with the outer surface of the upper shell 16, and the flip cover cannot protrude out of the outer surface, so that the whole appearance is attractive and concise.

In this embodiment, the connection manner of the upper casing 16 and the lower casing 17 is not particularly limited, and the upper casing 16 and the lower casing 17 may be detachably connected by a connection manner such as a bolt connection, a bayonet connection, a magnetic connection, or the like, and the upper casing 16 and the lower casing 17 may be fixedly connected by an adhesive manner or the like.

Preferably, in this embodiment, the upper housing 16 is detachably connected to the lower housing 17. It can be appreciated that, since the circuit board 2 is accommodated in the accommodating cavity 11, when the circuit board 2 needs to be maintained or replaced, the upper casing 16 or the lower casing 17 needs to be detached to expose the circuit board 2, and the upper casing 16 and the lower casing 17 are detachably connected to be more convenient for a user to detach and install, so that convenience in maintenance and replacement of the circuit board 2 is further improved.

Specifically, the upper casing 16 is provided with a threaded hole, the position of the lower casing 17 corresponding to the threaded hole is further provided with a through hole, and the bolt part passes through the through hole to be in threaded connection with the threaded hole, so that the upper casing 16 and the lower casing 17 are detachably connected.

Further, in order to quickly position the relative positions of the upper housing 16 and the lower housing 17 during disassembly and assembly, the outer edge of the upper housing 16 in this embodiment is further provided with a recess 161, the outer edge of the lower housing 17 is further provided with a protrusion 171 corresponding to the recess 161, and when the protrusion 171 is placed in the recess 161 and contacts with the recess 161, the upper housing 16 is in butt joint with the lower housing 17, thereby realizing quick positioning during assembly of the upper housing 16 and the lower housing 17.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. An interface device for a film type pressure sensing sheet is characterized by comprising a shell, a circuit board and a flip cover, wherein the shell is provided with a containing cavity and a notch, and the containing cavity is communicated with the notch; the circuit board is provided with a butt joint port which is in butt joint with the film type pressure sensing piece, a part of the circuit board provided with the butt joint port is exposed out of the notch, and the rest part of the circuit board is arranged in the accommodating cavity;

the flip cover is arranged at the notch and is rotationally connected with the shell, and the notch is covered or exposed by rotating the flip cover.

2. The interface device for a thin film pressure sensing die of claim 1, wherein when the flip cover covers the notch, a gap is maintained between the flip cover and the housing at a position corresponding to the docking port to form a channel for the thin film pressure sensing die to pass through, the channel communicating the notch with an external space.

3. The interface device for a thin film pressure sensing die of claim 2, wherein the flip cover comprises a cross plate and a riser connected to each other, an included angle is formed between the cross plate and the riser, and an end of the cross plate away from the riser is rotatably connected to the housing through a rotation shaft; the notch comprises a transverse opening and a vertical opening which are communicated, and the butt joint port is arranged corresponding to the vertical opening;

when the flip covers the gap, the cross plate covers the transverse opening, and the riser covers at least a portion of the vertical opening to form the channel with the housing.

4. An interface device for a membrane pressure sensing die as defined in claim 3, wherein said housing is provided with an abutment plate disposed in correspondence of said vertical opening and protruding from said abutment port;

when the flip covers the notch, the vertical plate is abutted against the abutting plate to limit the vertical plate to rotate towards the abutting port.

5. An interface device for a membrane pressure sensing die as claimed in claim 3 wherein the housing is provided with a support portion disposed on a side of the shaft remote from the riser;

when the flip cover exposes out of the notch, the transverse plate is in contact with the supporting portion, and the supporting portion supports the transverse plate so that the gravity center of the flip cover is located between the rotating shaft and the supporting portion.

6. An interface device for a membrane pressure sensing die as defined in claim 3, wherein said housing is provided with a first magnetic element adjacent said transverse opening, said flip cover being provided with a first magnetic element corresponding to said first magnetic element; when the turnover cover is turned over to expose the notch, the first magnetic attraction piece and the first magnetic piece are mutually magnetically attracted so that the turnover cover keeps a state of exposing the notch.

7. The interface device for a thin film pressure sensing sheet of claim 1, wherein the docking port comprises a docking point and a movable platen rotatably disposed with respect to the docking point, the movable platen having the same rotational direction as the flip cover; the thin film type pressure sensing sheet is butted with the butt contact to realize electric conduction, and the movable pressing plate is matched with the butt contact to clamp the thin film type pressure sensing sheet between the movable pressing plate and the butt contact.

8. The interface device for a thin film pressure sensing die of claim 1, wherein the housing is provided with a second magnetic member, and the flip cover is provided with a second magnetic member corresponding to the second magnetic member; when the flip cover covers the notch, the second magnetic attraction piece and the second magnetic piece are mutually magnetically attracted so that the flip cover keeps a state of covering the notch.

9. The interface device for the film-type pressure sensing sheet according to claim 1, wherein the circuit board is further provided with an indicator lamp for indicating the working state of the interface device, a through hole is formed in the position, corresponding to the indicator lamp, of the housing, and the indicator lamp penetrates out of the through hole.

10. The interface device for a thin film pressure sensing sheet as claimed in any one of claims 1 to 9, wherein the housing comprises an upper case and a lower case, the outer edge of the upper case is provided with a recess, and the outer edge of the lower case is provided with a protrusion at a position corresponding to the recess; when the protrusion is arranged in the concave part and is abutted against the concave part, the upper shell is abutted against the lower shell to form the accommodating cavity and the notch.

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