CN217787256U - Testing mechanism for electronic whiteboard - Google Patents

Abstract

The utility model relates to the technical field of electronic display, in particular to a testing mechanism for an electronic whiteboard, which comprises a shell, a refill and a buffer unit, wherein the refill is arranged in the shell, one end of the refill penetrates through the inner wall of the shell and extends to the outside of the shell, and the buffer unit is arranged at the other end of the refill and positioned in the shell; the buffer unit comprises a fixing plate, a primary spring, a sliding block, a sliding chute, a guide block, a limiting groove, a rack, a gear and a transmission rod, the bottom end of the cartridge is fixedly connected with the fixing plate, the outer surface of the fixing plate is in sliding connection with the inner wall of the shell, and the outer surface of the cartridge is sleeved with the primary spring; the utility model discloses in, can play certain cushioning effect to the refill through the buffer unit, prevent that the contact dynamics between refill and the whiteboard is too big, lead to the refill at the in-process of writing, produce fish tail or pit phenomenon to the surface of whiteboard easily, can improve whiteboard's life and surface finish.

Description

Testing mechanism for electronic whiteboard

Technical Field

The utility model relates to an electronic display technical field, in particular to accredited testing organization for whiteboard.

Background

Common electronic whiteboards are divided into three types: the first is a pressure-sensitive electronic whiteboard, which is positioned by pressure induction; the second type is an electromagnetic electronic whiteboard, which uses electromagnetic wire induction to perform positioning; the last one is an infrared electronic whiteboard, which uses infrared light for positioning; the electronic whiteboard adopting the pressure sensing technology adopts the analog resistance technology, uses a pressure sensing input mode, is equivalent to a touch screen of a computer, and when a teacher touches options realized on the screen with fingers or a pen, the computer can automatically process corresponding operations; at present, in a test process of a pressure-sensitive electronic whiteboard, a touch pen is usually adopted for writing, but the existing touch pen is usually formed by a round rod with certain hardness and does not have a buffer function; if the contact between the pen refill and the electronic whiteboard is not in place, the test cannot be carried out; when the contact force between the pen core and the electronic whiteboard is too large, the pen core is easy to scratch or dent the surface of the electronic whiteboard in the writing process, and the service life and the surface smoothness of the electronic whiteboard are reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a accredited testing organization for whiteboard has mainly solved the technical problem who proposes among the prior art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the testing mechanism for the electronic whiteboard comprises a shell, a refill and a buffer unit, wherein the refill is arranged in the shell, one end of the refill penetrates through the inner wall of the shell and extends to the outside of the shell, and the buffer unit is arranged at the other end of the refill and positioned in the shell;

the buffer unit comprises a fixing plate, a first-level spring, a sliding block, a sliding groove, a guide block, a limiting groove, a rack, a gear and a transmission rod, the top end of the cartridge is fixedly connected with the fixing plate, the outer surface of the fixing plate is connected with the inner wall of the shell in a sliding mode, the outer surface of the cartridge is sleeved with the first-level spring, one end of the first-level spring is fixedly connected with the inner wall of the shell, the other end of the first-level spring is fixedly connected with one end of the fixing plate and close to one side of the cartridge, two sets of sliding grooves are symmetrically formed in the inner wall of the shell and located on two sides of the cartridge, the inner wall of the shell is connected with the sliding block in a sliding mode respectively, the outer surface of the sliding block is fixedly connected with the transmission rod through a locking unit in a rotating mode, the outer surface of the transmission rod is fixedly connected with the gear, the outer surface of the gear is meshed with the rack, the bottom end of the rack is fixedly connected with the top end of the fixing plate, one side of the outer surface of the rack and close to the inner wall of the shell is fixedly connected with the guide block, the inner wall of the shell and close to one side of the rack, the inner wall of the shell is provided with the limiting groove, and the inner wall of the outer surface of the guide block is connected with the outer surface of the limiting groove.

Preferably, the locking unit includes fixed block, runner, electro-magnet, connecting rod, stopper and second grade spring, the inner wall of casing and the two sets of fixed blocks that are located the both ends fixedly connected with of transfer line, it is two sets of the inside of fixed block is provided with the cavity, the both ends of transfer line run through the surface of fixed block respectively and extend to fixedly connected with runner in the cavity, leave the space between the surface of runner and the inner wall of cavity, just the surface of transfer line is connected with the inner wall rotation of fixed block, the recess has been seted up to the inside of fixed block, one side sliding connection who just keeps away from the runner of the inner wall of recess has the stopper, the surface of stopper just is close to one side fixedly connected with connecting rod of runner, the other end of connecting rod runs through the inner wall of recess and extends to fixedly connected with electro-magnet in the cavity, electro-magnet and runner looks adaptation, the surface of connecting rod just is located the recess endotheca and is equipped with the second grade spring, the both ends of second grade spring contact with the surface of stopper and the inner wall of recess respectively.

Preferably, the top end of the shell is fixedly connected with a mounting seat.

Preferably, an installation cavity is formed in the outer surface of the shell and in one side close to the installation seat, a control box is fixedly connected to the installation cavity, a storage battery and a controller are arranged in the control box, and the controller, the storage battery and the electromagnet are electrically connected with one another.

Preferably, the surface of control box is provided with the interface that charges, just the wiring end of the interface that charges links to each other with the battery electrical property.

Preferably, the charging interface adopts a USB interface.

Preferably, a plurality of groups of triangular grooves are uniformly formed in the outer surface of the rotating wheel in an annular mode.

Preferably, the shape of stopper sets up to the arc structure, the surface of stopper and the one side that is close to the runner are provided with the multiunit triangle-shaped arch, and the multiunit triangle-shaped arch and triangle-shaped recess looks adaptation.

Preferably, the material of the rotating wheel is iron.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, can play certain cushioning effect to the refill through buffer unit, prevent that the contact dynamics between refill and the whiteboard is too big, lead to the refill in the process of writing, produce fish tail or pit phenomenon to the surface of whiteboard easily, can improve the life and the surface finish of whiteboard; in addition, the rotating wheel can be locked through the locking unit, so that the refill is fixed, the refill is prevented from stretching in the writing process, the writing stability of the refill can be improved, and the testing effect is improved; simultaneously, can charge the battery through the USB interface, convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of the testing mechanism for an electronic whiteboard of the present invention;

fig. 2 is a schematic structural view of the present invention, wherein fig. 1 is mounted on a fixing frame and a fixing ring;

fig. 3 is a schematic view of the internal structure of fig. 1 in the present invention;

fig. 4 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1 according to the present invention;

fig. 5 is a cross-sectional view taken along line B-B of fig. 1 according to the present invention;

fig. 6 is an enlarged view of fig. 5 at C of the present invention;

fig. 7 is a perspective view of the runner of fig. 1 in the present invention;

fig. 8 is a perspective view of the electromagnet shown in fig. 1 according to the present invention.

In the figure: the pen core comprises a shell 1, a pen core 2, a mounting seat 3, a buffering unit 4, a fixing plate 41, a primary spring 42, a sliding block 43, a sliding groove 44, a guide block 45, a limiting groove 46, a rack 47, a gear 48, a transmission rod 49, a locking unit 5, a fixing block 51, a cavity 511, a groove 512, a rotating wheel 52, an electromagnet 53, a connecting rod 54, a limiting block 55, a secondary spring 56, a mounting chamber 6, a control box 7, a charging interface 71, a fixing frame 8 and a fixing ring 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution:

the testing mechanism for the electronic whiteboard comprises a shell 1, a pen core 2 and a buffer unit 4, wherein the pen core 2 is arranged inside the shell 1, one end of the pen core 2 penetrates through the inner wall of the shell 1 and extends to the outside of the shell 1, and the buffer unit 4 is arranged at the other end of the pen core 2 and is positioned inside the shell 1;

the buffer unit 4 comprises a fixing plate 41, a first-level spring 42, a sliding block 43, a sliding groove 44, a guide block 45, a limiting groove 46, a rack 47, a gear 48 and a transmission rod 49, the top end of the cartridge 2 is fixedly connected with the fixing plate 41, the outer surface of the fixing plate 41 is in sliding connection with the inner wall of the casing 1, the outer surface of the cartridge 2 is sleeved with the first-level spring 42, one end of the first-level spring 42 is fixedly connected with the inner wall of the casing 1, the other end of the first-level spring 42 is fixedly connected with one end of the fixing plate 41 and close to one side of the cartridge 2, two groups of sliding grooves 44 are symmetrically formed in the inner wall of the casing 1 and located on two sides of the cartridge 2, the inner walls of the two groups of sliding grooves 44 are respectively in sliding connection with the sliding block 43, the outer surface of the sliding block 43 is fixedly connected with the outer surface of the fixing plate 41, the upper position of the inner wall of the casing 1 and located on the sliding groove 44 is rotatably connected with the transmission rod 49 through the locking unit 5, the gear 48 is fixedly connected with the outer surface of the gear 49, the outer surface of the gear 48 is meshed with the rack 47, the bottom end of the rack 47 is fixedly connected with the top end of the fixing plate 41, the outer surface of the rack 47 is fixedly connected with the guide block 45 and close to one side of the inner wall of the casing 1, the limiting groove 46, and close to one side of the inner wall of the limiting groove 46, and the limiting groove 46 is connected with the inner wall of the limiting groove 45.

When a user needs to test the electronic whiteboard by using the mechanism, firstly, the bottom end of the mechanism sequentially penetrates through the top end of the fixing ring 9 and the top end of the fixing frame 8, and the mechanism is fixedly arranged on the fixing frame 8 through the fixing ring 9, so that the electronic whiteboard can be conveniently tested in the subsequent process; in the testing process, the fixing frame 8 drives the mechanism to move towards one side close to the electronic whiteboard, so that the end part of the pen core 2 is abutted against the electronic whiteboard, and a part of the pen core 2 is retracted into the shell 1 under the extrusion of the electronic whiteboard, so that the pen core 2 is fully contacted with the electronic whiteboard, then the pen core 2 drives the fixing plate 41 to slide along the inner wall of the shell 1, so that the fixing plate 41 drives the sliding block 43 to slide along the inner wall of the sliding groove 44, a certain guiding and limiting effect can be achieved on the fixing plate 41 through the sliding groove 44, the fixing plate 41 is prevented from impacting the gear 48 in the sliding process, and the transmission rod 49 is damaged to a certain extent; then, the fixing plate 41 drives the guide block 45 to slide along the inner wall of the limiting groove 46 through the rack 47, and then the rack 47 drives the gear 48 to rotate; simultaneously, fixed plate 41 is tensile one-level spring 42 at gliding in-process, make one-level spring 42 hold power, be convenient for after refill 2 loses the extrusion force, under one-level spring 42's elastic restoring force effect, make one-level spring 42 can drive refill 2 through fixed plate 41 and reset, thereby can play certain cushioning effect to refill 2, prevent that the contact force between refill 2 and the whiteboard is too big, lead to refill 2 at the in-process of writing, produce fish tail or pit phenomenon easily to the surface of whiteboard, can improve whiteboard's life and surface finish.

As an embodiment of the present invention, the locking unit 5 includes a fixing block 51, a rotating wheel 52, an electromagnet 53, a connecting rod 54, a limiting block 55 and a second-stage spring 56, the inner wall of the housing 1 is located two sets of fixing blocks 51 of both ends fixedly connected with of the transmission rod 49, the inside of the two sets of fixing blocks 51 is provided with a cavity 511, the both ends of the transmission rod 49 are respectively run through the outer surface of the fixing block 51 and extend to the fixedly connected with rotating wheel 52 in the cavity 511, a gap is left between the outer surface of the rotating wheel 52 and the inner wall of the cavity 511, and the outer surface of the transmission rod is connected with the inner wall of the fixing block in a rotating manner, a groove 512 is provided inside the fixing block 51, one side sliding connection of the inner wall of the groove 512 and far away from the rotating wheel 52 has a limiting block 55, one side fixedly connected with the connecting rod 54 of the outer surface of the limiting block 55 and near the rotating wheel 52, the other end of the connecting rod 54 is run through the inner wall of the groove 512 and extends to the fixedly connected with the electromagnet 53 in the cavity 511, the electromagnet 53 is adapted to the rotating wheel 52, the outer surface of the connecting rod 54 and is located the groove 512 and is provided with the second-stage spring 56, both ends of the outer surface of the limiting block 55 and the inner wall of the groove 512 respectively.

In the initial state, the electromagnet 53 and the rotating wheel 52 are in a separated state, and after the end part of the pen core 2 is abutted against the electronic whiteboard, the pen core 2 can be locked by the locking unit 5 in order to prevent the pen core 2 from retracting into the shell 1 in the writing process; firstly, controlling the electromagnet 53 to be electrified to enable the electromagnet 53 and the rotating wheel 52 to be attracted together, then driving the limiting block 55 to slide along the inner wall of the groove 512 by the electromagnet 53 through the connecting rod 54, enabling the limiting block 55 to extrude the secondary spring 56 to store force, and driving the electromagnet 53 to reset under the action of elastic restoring force of the secondary spring 56 after the electromagnet 53 is powered off; thereby can lock runner 52 through electro-magnet 53, and then play fixed effect to refill 2, prevent that flexible phenomenon from appearing in the in-process of refill 2 writing, can improve the writing stability of refill 2, improve test effect.

As an embodiment of the present invention, the top end of the housing 1 is fixedly connected with the mounting seat 3; in the installation process, the mechanism is not manually supported, and the clamping and the positioning are convenient.

As an embodiment of the utility model, the surface of casing 1 and the one side of being close to mount pad 3 have been seted up installation cavity 6, and fixedly connected with control box 7 in the installation cavity 6 is provided with battery and controller in the control box 7, and mutual electrical property links to each other between controller, battery and the electro-magnet 53.

So as to provide power for the electromagnet 53 and control the electromagnet 53 to be in a power-on or power-off state.

As an embodiment of the present invention, the outer surface of the control box 7 is provided with a charging interface 71, and the wiring end of the charging interface 71 is electrically connected to the storage battery; the storage battery is convenient to charge.

As an embodiment of the present invention, the charging interface 71 adopts a USB interface.

As an embodiment of the present invention, a plurality of sets of triangular grooves 512 are uniformly formed on the outer surface of the rotating wheel 52; the locking limit of the rotating wheel 52 is convenient.

As an embodiment of the present invention, the shape of the limiting block 55 is an arc structure, a plurality of sets of triangular protrusions are disposed on the outer surface of the limiting block 55 and on the side close to the rotating wheel 52, and the plurality of sets of triangular protrusions are matched with the triangular grooves 512; so as to be convenient to lock and limit by matching with the rotating wheel 52.

As an embodiment of the present invention, the material of the runner 52 is iron; so as to be convenient for being attracted with the electromagnet 53.

The working principle is as follows: when a user needs to test the electronic whiteboard by using the mechanism, firstly, the bottom end of the mechanism sequentially penetrates through the top end of the fixing ring 9 and the top end of the fixing frame 8, so that the bottom end of the mounting seat 3 is contacted with the top end of the fixing ring 9, and then the mechanism is fixedly mounted on the fixing frame 8 through the fixing ring 9, so that the electronic whiteboard can be conveniently tested subsequently; in the test process, the fixing frame 8 drives the mechanism to move towards one side close to the electronic whiteboard, so that the end part of the pen core 2 is abutted against the electronic whiteboard, and a part of the pen core 2 is retracted into the shell 1 under the extrusion of the electronic whiteboard, so that the pen core 2 is fully contacted with the electronic whiteboard, then the pen core 2 drives the fixing plate 41 to slide along the inner wall of the shell 1, so that the fixing plate 41 drives the sliding block 43 to slide along the inner wall of the sliding groove 44, the fixing plate 41 can be guided and limited by the sliding groove 44, the fixing plate 41 is prevented from impacting the gear 48 in the sliding process, and the transmission rod 49 is damaged to a certain extent; then, the fixed plate 41 drives the guide block 45 to slide along the inner wall of the limit groove 46 through the rack 47, and then the rack 47 drives the gear 48 to rotate, so that the gear 48 drives the transmission rod 49 to rotate along the inner wall of the fixed block 51, and the transmission rod 49 drives the rotating wheel 52 to rotate in the cavity 511; simultaneously, fixed plate 41 is tensile one-level spring 42 at gliding in-process, make one-level spring 42 hold power, be convenient for after refill 2 loses the extrusion force, under the elastic restoring force effect of one-level spring 42, make one-level spring 42 can drive refill 2 through fixed plate 41 and reset, thereby can play certain cushioning effect to refill 2, prevent that the contact dynamics between refill 2 and the electronic whiteboard is too big, lead to refill 2 at the in-process of writing, produce fish tail or pit phenomenon to the surface of electronic whiteboard easily, can improve electronic whiteboard's life and surface finish.

In the initial state, the electromagnet 53 and the rotating wheel 52 are in a separated state, and after the end part of the pen core 2 is abutted against the electronic whiteboard, the pen core 2 can be locked by the locking unit 5 in order to prevent the pen core 2 from retracting into the shell 1 in the writing process; firstly, the electromagnet 53 is controlled to be electrified through the controller, so that the electromagnet 53 and the rotating wheel 52 are attracted together, then the electromagnet 53 drives the limiting block 55 to slide along the inner wall of the groove 512 through the connecting rod 54, so that the limiting block 55 extrudes the secondary spring 56 to store force, and after the electromagnet 53 is electrified, the electromagnet 53 is driven to reset under the action of the elastic restoring force of the secondary spring 56; the rotating wheel 52 can be locked through the electromagnet 53, so that the refill 2 is fixed, the phenomenon that the refill 2 stretches in the writing process is prevented, the writing stability of the refill 2 can be improved, and the testing effect is improved; similarly, when the pen core 2 needs to be adjusted in a telescopic mode, the electromagnet 53 is controlled to be powered off through the controller.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (9)

1. Test mechanism for whiteboard includes casing (1), refill (2) and buffer unit (4), its characterized in that: a refill (2) is arranged in the shell (1), one end of the refill (2) penetrates through the inner wall of the shell (1) and extends to the outside of the shell (1), and a buffer unit (4) is arranged at the other end of the refill (2) and positioned in the shell (1);

the buffer unit (4) comprises a fixing plate (41), a primary spring (42), a sliding block (43), a sliding groove (44), a guide block (45), a limiting groove (46), a rack (47), a gear (48) and a transmission rod (49), the top end of the cartridge (2) is fixedly connected with the fixing plate (41), the outer surface of the fixing plate (41) is in sliding connection with the inner wall of the shell (1), the outer surface of the cartridge (2) is sleeved with the primary spring (42), one end of the primary spring (42) is fixedly connected with the inner wall of the shell (1), the other end of the primary spring (42) is fixedly connected with one end of the fixing plate (41) and one side close to the cartridge (2), two groups of sliding grooves (44) are symmetrically formed in the inner wall of the shell (1) and positioned on two sides of the cartridge (2), the inner walls of the two groups of sliding grooves (44) are respectively in sliding connection with the sliding block (43), the outer surface of the sliding block (43) is fixedly connected with the outer surface of the fixing plate (41), the inner wall of the shell (1) and positioned above the sliding groove (44) are rotatably connected with the transmission rod (49) through a locking unit (5), the outer surface of the gear (49) is fixedly connected with the gear (48), and the rack (47), and the outer surface of the gear (48) is meshed with the rack (47), the bottom of rack (47) and the top fixed connection of fixed plate (41), the surface of rack (47) just is close to one side fixedly connected with guide block (45) of casing (1) inner wall, spacing groove (46) have been seted up to the inner wall of casing (1) just one side of being close to rack (47), the inner wall of spacing groove (46) and the surface sliding connection of guide block (45).

2. The test mechanism for an electronic whiteboard according to claim 1, wherein: the locking unit (5) comprises a fixed block (51), a rotating wheel (52), an electromagnet (53), a connecting rod (54), a limiting block (55) and a secondary spring (56), wherein two groups of fixed blocks (51) are fixedly connected to the inner wall of the shell (1) and positioned at two ends of a transmission rod (49), a cavity (511) is formed in the two groups of fixed blocks (51), two ends of the transmission rod (49) respectively penetrate through the outer surface of the fixed block (51) and extend to the cavity (511) to be fixedly connected with the rotating wheel (52), a gap is reserved between the outer surface of the rotating wheel (52) and the inner wall of the cavity (511), the outer surface of the transmission rod (49) is rotatably connected with the inner wall of the fixed block (51), a groove (512) is formed in the fixed block (51), the limiting block (55) is slidably connected to one side of the inner wall of the groove (512) far away from the rotating wheel (52), the outer surface of the limiting block (55) is fixedly connected with the connecting rod (54) close to one side of the rotating wheel (52), the other end of the connecting rod (54) penetrates through the inner wall of the groove (512) and extends to be fixedly connected with the cavity (53), the electromagnet (56), and the outer surface of the rotating wheel (512) is matched with the second-level electromagnet (56), and two ends of the secondary spring (56) are respectively contacted with the outer surface of the limiting block (55) and the inner wall of the groove (512).

3. The testing mechanism for an electronic whiteboard according to claim 2, characterized in that: the top end of the shell (1) is fixedly connected with a mounting seat (3).

4. The test mechanism for an electronic whiteboard according to claim 3, wherein: the outer surface of the shell (1) and one side close to the mounting seat (3) are provided with a mounting cavity (6), a control box (7) is fixedly connected in the mounting cavity (6), a storage battery and a controller are arranged in the control box (7), and the controller, the storage battery and the electromagnet (53) are electrically connected with one another.

5. The test mechanism for an electronic whiteboard according to claim 4, wherein: the surface of control box (7) is provided with interface (71) that charges, just the wiring end of interface (71) that charges links to each other with the battery electrical property.

6. The test mechanism for an electronic whiteboard according to claim 5, wherein: the charging interface (71) adopts a USB interface.

7. The test mechanism for an electronic whiteboard according to claim 2, wherein: the outer surface of the rotating wheel (52) is annularly and uniformly provided with a plurality of groups of triangular grooves.

8. The test mechanism for an electronic whiteboard according to claim 7, wherein: the shape of stopper (55) sets up to the arc structure, the surface of stopper (55) and the one side that is close to runner (52) are provided with the multiunit triangle-shaped arch, and the multiunit triangle-shaped arch and triangle-shaped recess looks adaptation.

9. The test mechanism for an electronic whiteboard according to claim 7, wherein: the material of the rotating wheel (52) is iron.

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