CN220154912U

CN220154912U - Serial port communication expansion board

Info

Publication number: CN220154912U
Application number: CN202321563229.7U
Authority: CN
Inventors: 陈心悦; 陈志浩; 胡凡凡; 陈海军
Original assignee: Wuhan Gongdian Information Technology Co ltd
Current assignee: Wuhan Gongdian Information Technology Co ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-12-08
Anticipated expiration: 2033-06-19

Abstract

The utility model relates to the technical field of expansion boards and provides a serial port communication expansion board which comprises a frame body, wherein the middle parts of the front side and the rear side of the frame body are provided with a first strip-shaped groove, and the bottom of an inner cavity of the first strip-shaped groove is provided with a second strip-shaped groove; this serial port communication expansion board uses through the cooperation of extrusion piece structure and electro-magnet structure, during the use, utilize the drum to rotate through spring two and install at the round axle surface, thereby after the external force disappears behind the connecting wire is tensile, can be under the elasticity effect of spring two automatic re-setting, utilize the frictional force between spring one elasticity and extrusion piece and the connecting wire surface in the use simultaneously, with the connecting wire when this fixed use, the repulsion force that produces between the electro-magnet that starts in the cooperation use and the extrusion piece, with this consolidate extrusion piece to the fixed of connecting wire, improve the stability of connecting wire installation when avoiding simultaneously during the use with the loose back of power one end connecting wire with other electric wires winding, the effect of in-service use is influenced.

Description

Serial port communication expansion board

Technical Field

The utility model relates to the technical field of expansion boards, in particular to a serial port communication expansion board.

Background

The expansion board is an expansion board which can be compatible with multiple types of main control, can only be connected to the expansion board by using one type of main control at a time, comprises support STM32, arduino UNO, micro: bit and STC51, even further reserves an external I2C interface, can support other main control boards with I2C functions, can be used by connecting computers through a plurality of data lines when the existing expansion board is used so as to carry out data transmission and debugging, but when the expansion board is used, the data lines can be randomly placed, are very messy, and are easy to be wound together.

Through retrieving, chinese patent publication No. CN218351864U discloses a many serial ports expansion board with real-time operating system, in this patent through twining the connecting wire at the carriage release lever surface, during the use, tensile connecting wire for the slider removes on the slide rail, and the axle sleeve is kept away from each other under the effect of transfer line simultaneously, and the spring is stretched at this moment, and after using, unclamp the connecting wire, automatic re-setting under the elasticity effect of spring.

However, when the device in this patent is in actual use, because the elasticity effect of spring behind the connecting wire is tensile for there is pulling force that pulls the reset after the connecting wire is used all the time, so that the plug and the jack installation of connecting wire are unstable, lead to connecting wire practicality to reduce, when the device in the above-mentioned patent is tensile simultaneously, the movable rod contracts, the front and back connecting wire all can stretch, during actual use, most just the leading end connecting wire that is connected with equipment such as computer removes the stretching, the leading connecting wire end of being connected with the power of rear-mounted then can unnecessary stretching, cause the loose winding of connecting wire, influence normal use.

Disclosure of Invention

The utility model provides a serial port communication expansion board, which solves the problems that in the use process of the related technology, the installation of a connecting wire is unstable due to the elastic force of a spring, and the practical use is affected by the looseness of the connecting wire at one end of a power supply during the use.

The technical scheme of the utility model is as follows: the utility model provides a serial communication expansion board, includes the framework, bar groove one has all been seted up at the front and back both sides middle part of framework, bar groove two has been seted up to the bottom of bar groove one inner chamber, the equal fixed mounting in left and right sides of bar groove two inner chambers has the electro-magnet, the equal fixed mounting in left and right sides of bar groove two inner chambers has spring one, the opposite side fixed mounting of spring one has the extrusion piece, the equal fixed mounting in left and right sides of the inner chamber of bar groove one has the rubber block, the equal fixed mounting in front and back both sides of framework inner chamber bottom has the group battery, bar groove three has all been seted up to the left and right sides of framework, the inner chamber demountable installation of bar groove three has the plectane, the middle part fixed mounting of left and right plectane has the round axle, the middle part surface movable mounting of round axle has the drum, fixed mounting has spring two between round axle surface and the drum inner wall, the surface winding of drum has the connecting wire.

Preferably, the front side of the frame body is fixedly provided with a switch, the top of the frame body is provided with a mounting groove, an inner cavity of the mounting groove is detachably provided with a cover plate, and the right side of the cover plate is fixedly provided with a pull ring.

Preferably, after the electromagnet is electrified, the magnetic pole of the opposite side of the same-side extrusion block is the same, and the electromagnet is arranged in the middle of the same-side spring I, so that after the electromagnet is electrified, the left extrusion block and the right extrusion block move towards the middle of the strip-shaped groove I under the action of repulsive force generated by the same poles.

Preferably, the upper and lower both sides of the opposite side of the left and right extrusion piece are arc-shaped designs, and the material of the opposite side of the left and right extrusion piece is an elastomer material construction, so that when in use, the arc-shaped designs of the opposite side of the left and right extrusion piece are utilized to facilitate the insertion of the connecting wire, and simultaneously the friction force between the rubber material of the extrusion piece and the outer surface of the connecting wire is improved, and the abrasion to the connecting wire is avoided.

Preferably, the battery pack is electrically connected with the two electromagnets on the same side through a wire.

Preferably, the material of rubber piece is the synthetic rubber material and builds, and the top of rubber piece is arc design, and the height of rubber piece and the distance phase-match between extrusion piece top and the installation back shroud bottom to during the use, the arc design at utilizing the rubber piece top is convenient for insert of connecting wire, utilizes the rubber piece to prevent simultaneously that the external impurity from getting into the framework inner chamber through strip groove one easily in the use.

Preferably, the diameter of one side, far away from the inner wall of the frame, of the left and right strip-shaped grooves is larger than that of one side, close to the inner wall of the frame, of the left and right strip-shaped grooves, the diameter of one side, far away from the inner wall of the frame, of the left and right strip-shaped grooves is matched with that of a circular plate, the diameter of one side, close to the inner wall of the frame, of the left and right strip-shaped grooves is matched with that of a joint between the circular plate and the circular shaft, and the rear side, close to the front side of the inner cavity of the frame, of the left and right strip-shaped grooves is more than the rear side of the inner cavity of the frame, so that the circular shaft is movably mounted in the left and right inner cavities of the strip-shaped grooves, which are formed in the frame, by the circular plate.

Preferably, the second spring is arranged on the outer surface of the middle part of the circular shaft, so that when the second spring rotates, the circular plate and the circular shaft are fixed in the three inner cavities of the strip-shaped groove, the circular shaft does not rotate when the cylinder rotates, the second spring contracts at the moment, and when the external force driving the cylinder to rotate disappears, the second spring automatically resets, so that the cylinder automatically rotates and resets, and the connecting wire is automatically wound.

Preferably, the switch is electrically connected with all the battery packs and all the electromagnets through the lead wires, so that when the connecting wire is stretched, and the use is started, the switch is pressed, the electromagnets are driven by the battery packs to be electrified, so that the extrusion blocks on the front side and the rear side automatically move towards the middle part of the first strip-shaped groove because of repulsive force generated by the electromagnets, and the connecting wire is clamped better.

Preferably, the mounting groove penetrates through the right side of the frame body and extends to the left side wall of the frame body, and the shape of the cover plate is matched with the shape of the inner cavity of the mounting groove, so that when the device is used, the top of the inner cavity of the frame body is automatically shielded by the cover plate, and impurities are prevented from entering the inner cavity of the frame body.

The working principle and the beneficial effects of the utility model are as follows:

1. this serial port communication expansion board uses through the cooperation of extrusion piece structure and electro-magnet structure, during the use, utilize the drum to rotate through spring two and install at the round axle surface, thereby after the external force disappears behind the connecting wire is tensile, can be under the elasticity effect of spring two automatic re-setting, utilize the frictional force between spring one elasticity and extrusion piece and the connecting wire surface in the use simultaneously, with the connecting wire when this fixed use, the repulsion force that produces between the electro-magnet that starts in the cooperation use and the extrusion piece, with this consolidate extrusion piece to the fixed of connecting wire, improve the stability of connecting wire installation when avoiding simultaneously during the use with the loose back of power one end connecting wire with other electric wires winding, the effect of in-service use is influenced.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic view of the front appearance of the overall structure of the present utility model;

FIG. 2 is a right side view of the overall structure of the present utility model;

FIG. 3 is a schematic top view of the overall structure of the present utility model;

FIG. 4 is a schematic view of the overall structure of the present utility model from the right front perspective;

FIG. 5 is a schematic view of the structure of FIG. 4A according to the present utility model;

fig. 6 is a schematic diagram of the structure of fig. 4 at B according to the present utility model.

In the figure: 1. a frame; 2. a first strip-shaped groove; 3. a second strip-shaped groove; 4. an electromagnet; 5. a first spring; 6. extruding a block; 7. a rubber block; 8. a battery pack; 9. a third strip-shaped groove; 10. a circular plate; 11. a circular shaft; 12. a cylinder; 13. a second spring; 14. a connecting wire; 15. a switch; 16. a mounting groove; 17. a cover plate; 18. and (5) a pull ring.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, a serial port communication expansion board comprises a frame 1, wherein a first strip-shaped groove 2 is formed in the middle of the front side and the rear side of the frame 1, a second strip-shaped groove 3 is formed in the bottom of the inner cavity of the first strip-shaped groove 2, electromagnets 4 are fixedly arranged on the left side and the right side of the inner cavity of the second strip-shaped groove 3, the magnetic poles of the electromagnets 4 on the opposite sides of the same-side extrusion blocks 6 are the same, the electromagnets 4 are arranged in the middle of the same-side spring 5, so that the left extrusion block 6 and the right extrusion block 6 move towards the middle of the first strip-shaped groove 2 under the action of repulsive force generated by the same poles after the electromagnets 4 are electrified, a first spring 5 is fixedly arranged on the left side and the right side of the inner cavity of the second strip-shaped groove 3, the extrusion blocks 6 are fixedly arranged on the other side of the first spring 5, the upper side and the lower side of the opposite sides of the left extrusion blocks 6 are arc-shaped, the opposite sides of the left extrusion blocks 6 are made of synthetic rubber materials, therefore, when in use, the arc design on the opposite sides of the left extrusion block 6 and the right extrusion block 6 is utilized to facilitate the insertion of the connecting wire 14, the rubber material of the extrusion block 6 is utilized to improve the friction force between the rubber material and the outer surface of the connecting wire 14, the abrasion to the connecting wire 14 is avoided, the rubber block 7 is fixedly arranged on the left side and the right side of the inner cavity of the first strip-shaped groove 2, the rubber block 7 is made of synthetic rubber material, the top of the rubber block 7 is in arc design, the height of the rubber block 7 is matched with the distance between the top of the extrusion block 6 and the bottom of the rear cover plate 17, therefore, when in use, the arc design on the top of the rubber block 7 is utilized to facilitate the insertion of the connecting wire 14, and meanwhile, the rubber block 7 is utilized to prevent external impurities from easily entering the inner cavity of the frame 1 through the first strip-shaped groove 2 in the use, the battery pack 8 is fixedly arranged on the front side and the rear side of the bottom of the inner cavity of the frame 1, the battery pack 8 is electrically connected with two electromagnets 4 on the same side through wires, the left side and the right side of the frame body 1 are respectively provided with a strip-shaped groove III 9, the diameter of one side, far away from the inner wall of the frame body 1, of the left and the right strip-shaped grooves III 9 is larger than that of one side, close to the inner wall of the frame body 1, of the left and the right strip-shaped grooves III 9, the diameter of one side, far away from the inner wall of the frame body 1, of the left and the right strip-shaped grooves III 9 is matched with that of a circular plate 10, the diameter of one side, close to the inner wall of the frame body 1, of the left and the right strip-shaped grooves III 9 is matched with that of the junction between the circular plate 10 and the circular shaft 11, the circular shaft 11 is movably mounted in the inner cavity of the left and the right of the frame body 1 by using the circular plate 10, the inner cavity of the strip-shaped grooves III 9 is detachably mounted with the circular shaft 11 in the middle of the left and the circular plate 10, the cylinder 12 is movably arranged on the outer surface of the middle part of the circular shaft 11, the cylinder 12 is arranged on the outer surface of the middle part of the circular shaft 11 through the second spring 13, so that when the cylinder 12 rotates, the circular plate 10 and the circular shaft 11 are fixed in the inner cavity of the three 9 strip-shaped grooves, the circular shaft 11 does not rotate when the cylinder 12 rotates, the second spring 13 is contracted, when the external force driving the cylinder 12 to rotate disappears, the second spring 13 automatically resets, the cylinder 12 automatically rotates and resets, the connecting wire 14 is automatically wound, the second spring 13 is fixedly arranged between the outer surface of the circular shaft 11 and the inner wall of the cylinder 12, the connecting wire 14 is wound on the outer surface of the cylinder 12, the switch 15 is electrically connected with all the battery packs 8 and all the electromagnets 4 through wires, when the connecting wire 14 is stretched, the switch 15 is pressed, the electromagnets 4 are driven to be electrified through the battery packs 8, the extrusion piece 6 that makes the front and back both sides is because with the repulsion that the electro-magnet 4 produced and automatic to the middle part direction removal of bar groove one 2 to this better clamp connection line 14, the front side fixed mounting of framework 1 has switch 15, mounting groove 16 has been seted up at the top of framework 1, the inner chamber demountable installation of mounting groove 16 has apron 17, the right side fixed mounting of apron 17 has pull ring 18, mounting groove 16 runs through the right side of framework 1 and extends to the left side lateral wall of framework 1, the shape of apron 17 and the shape phase-match in mounting groove 16 inner chamber, thereby during the use, utilize the inner chamber top of apron 17 automatic shelter from framework 1, prevent impurity entering framework 1 inner chamber.

Working principle: when in use, firstly, the cover plate 17 is pulled out of the mounting groove 16 at the top of the frame body 1 through the pull ring 18, then the connecting wire 14 is wound on the outer surface of the cylinder 12, the wound cylinder 12 is inserted into the inner cavities of the three strip-shaped grooves 9 at the left and right sides of the frame body 1 through the round plates 10 at the left and right sides, the shape of the inner cavities of the three strip-shaped grooves 9 and the shape of the round plates 10 and the round shafts 11 are utilized to ensure that the round plates 10 and the round shafts 11 cannot rotate after being mounted, then one end of the connecting wire 14 connected with equipment and the other end of the connecting wire 14 connected with a power supply are manually stretched, respectively inserted from the top of the first strip-shaped groove 2 at the front side and the rear side and slid into the bottom of the inner cavity of the first strip-shaped groove 2 at the front and rear side, in the process that the connecting wire 14 moves from the top of the inner cavity of the first strip-shaped groove 2 to the bottom, the arc design of the top of the rubber block 7 and the arc design of the opposite sides of the left extrusion block 6 are utilized to facilitate the insertion of the connecting wire 14, after the connecting wire 14 is inserted between the left extrusion block 6 and the right extrusion block 6 arranged at the bottom of the inner cavity of the second strip-shaped groove 3, the extrusion block 6 is used for extruding and fixing the connecting wire 14 by the elasticity of the first spring 5, and the sliding speed of the connecting wire 14 between the left extrusion block 6 and the right extrusion block 6 is reduced by matching with the friction force between the rubber material of the extrusion block 6 and the outer surface of the connecting wire 14, and finally the cover plate 17 is inserted into the mounting groove 16 to seal the top of the inner cavity of the frame 1;

when the device is used, the connecting wire 14 which is placed in the inner cavity of the front side strip-shaped groove II 3 and is connected with the device connecting plug is manually stretched according to the requirement, the cylinder 12 rotates at the moment, the second spring 13 connected between the cylinder 12 and the outer surface of the round shaft 11 rotates and contracts, one end of the connecting wire 14 which is connected with the power connecting plug is also arranged on the rear side and is loose, the position where the round shaft 11 is arranged is close to the front side of the inner cavity of the frame body 1, the connecting wire 14 which is connected with the power connecting plug is arranged on the rear side of the inner cavity of the frame body 1, after stretching adjustment is finished, the switch 15 is pressed, all the electromagnets 4 are electrified, the repulsive force generated between the electromagnets 4 and the same side extrusion block 6 is utilized to push the extrusion block 6 to one end in the direction of the connecting wire 14, the fixation of the connecting wire 14 is reinforced, when the device is not used, the switch 15 is pressed again, all the electromagnets 4 are powered off, and under the elastic force of the second spring 13, the cylinder 12 slowly rotates to reset, and the stretched connecting wire 14 is automatically rolled.

In summary, this serial communication expansion board compares in general similar device, and this device possesses the stability that improves the connecting wire installation in the use simultaneously avoid when using with the power one end connecting wire with other electric wires winding after lax, influence the advantage of in-service use.

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, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a serial communication expansion board, a serial communication expansion board comprises a frame body (1), bar groove one (2) have all been seted up at the front and back both sides middle part of framework (1), bar groove three (9) have all been seted up to the bottom of bar groove one (2) inner chamber, bar groove two (3) inner chamber's left and right sides all fixed mounting has electro-magnet (4), bar groove two (3) inner chamber's left and right sides all fixed mounting has spring one (5), the opposite side fixed mounting of spring one (5) has extrusion piece (6), bar groove one (2) inner chamber left and right sides all fixed mounting has rubber piece (7), bar groove three (9) have all been seted up at the front and back both sides of framework (1) inner chamber bottom, bar groove three (9) inner chamber demountable installation has plectane (10), the middle part fixed mounting of plectane (10) has round axle (11), the middle part movable mounting of round axle (11) has drum (12), between round axle (11) surface and drum (12) inner wall, the surface of connecting wire (13) of drum (12) fixed mounting has drum (14).

2. The serial port communication expansion board according to claim 1, wherein the front side of the frame body (1) is fixedly provided with a switch (15), the top of the frame body (1) is provided with a mounting groove (16), an inner cavity of the mounting groove (16) is detachably provided with a cover plate (17), and the right side of the cover plate (17) is fixedly provided with a pull ring (18).

3. The serial port communication expansion board according to claim 1, wherein the magnetic pole of the electromagnet (4) on the opposite side of the same-side extrusion block (6) after being electrified is the same, and the electromagnet (4) is arranged in the middle of the same-side spring I (5).

4. The serial port communication expansion board according to claim 1, wherein the upper and lower sides of the opposite sides of the left and right extrusion blocks (6) are arc-shaped, and the opposite sides of the left and right extrusion blocks (6) are made of synthetic rubber materials.

5. A serial communication expansion board according to claim 1, characterized in that the battery (8) is electrically connected to the two electromagnets (4) on the same side by means of wires.

6. The serial port communication expansion board according to claim 1, wherein the rubber block (7) is made of synthetic rubber, the top of the rubber block (7) is arc-shaped, and the height of the rubber block (7) is matched with the distance between the top of the extrusion block (6) and the bottom of the installation rear cover plate (17).

7. The serial port communication expansion board according to claim 1, wherein the diameter of the side, far away from the inner wall of the frame body (1), of the left and right strip-shaped grooves three (9) is larger than that of the side, close to the inner wall of the frame body (1), of the left and right strip-shaped grooves three (9), the diameter of the side, far away from the inner wall of the frame body (1), of the left and right strip-shaped grooves three (9) is matched with that of the circular plate (10), and the diameter of the side, close to the inner wall of the frame body (1), of the left and right strip-shaped grooves three (9) is matched with that of the joint between the circular plate (10) and the circular shaft (11), and the rear side, close to the front side, close to the inner cavity of the frame body (1), of the left and right strip-shaped grooves three (9) relative to the rear side of the inner cavity of the frame body (1).

8. A serial communication expansion board according to claim 1, characterized in that the cylinder (12) is mounted on the outer surface of the middle part of the circular shaft (11) by means of a second spring (13).

9. A serial communication expansion board according to claim 2, characterized in that the switch (15) is electrically connected to all battery packs (8) and all electromagnets (4) by means of wires.

10. A serial port communication expansion board according to claim 2, characterized in that the mounting groove (16) penetrates the right side of the frame (1) and extends to the left side wall of the frame (1), and the shape of the cover plate (17) is matched with the shape of the inner cavity of the mounting groove (16).