Track ball device, control panel and medical equipment

Abstract

The utility model discloses a trackball device, a control panel and medical equipment. The trackball device comprises a mounting base body, a trackball and a sensor board card. The installation base body comprises a ball seat and an installation groove, the installation groove is provided with a positioning datum plane, and at least the positioning datum plane and the ball seat are of an integrally-formed structure. The trackball is rotatably mounted on the ball seat. The sensor board card is inserted into the mounting groove, and one side of the sensor board card abuts against the positioning reference surface. On one hand, the installation of the sensor board card through the installation groove is more convenient and faster, operations such as screwing screws are not needed, and the influence of screw stress on the sensor board card is also eliminated. And on the other hand, the positioning reference surface and the ball seat are of an integrally-formed structure, so that the distance precision between the positioning reference surface and the ball seat is guaranteed, and when one side of the sensor board card abuts against the positioning reference surface, the distance precision between the sensor board card and the trackball on the ball seat is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and particularly relates to a trackball device, a control panel, and a medical device. Background Art

[0002] Trackball devices are widely used. For example, some medical device control panels are provided with trackball devices for medical staff to control the medical devices through the trackball devices. A trackball device generally includes a trackball and a sensor board. The laser or infrared sensor on the sensor board is used to sense the rotation of the trackball, and the distance between the sensor board and the surface of the trackball is an important factor affecting the performance of the trackball device. To ensure the high precision of this distance, in the related art, some fix the sensor board with screws, but this fixing method has screw stress and the assembly process is complex. Others fix the sensor board with a sheet metal pressing plate, but this fixing method has a risk of loosening, the structure of the sheet metal pressing plate is complex, and it is not easy to ensure the precision. Summary of the Utility Model

[0003] The main purpose of the present utility model is to provide a trackball device with convenient installation and high precision of the sensor board, as well as a control panel and a medical device with the trackball device.

[0004] In a first aspect, in one embodiment, a trackball device is provided, including:

[0005] An installation base, the installation base includes a ball seat and an installation groove, the installation groove has a positioning reference surface, and at least the positioning reference surface and the ball seat are integrally formed structures;

[0006] A trackball, the trackball is rotatably installed on the ball seat;

[0007] And a sensor board, the sensor board is inserted into the installation groove, and one side of the sensor board abuts against the positioning reference surface.

[0008] In one embodiment, the installation groove includes a first groove wall and a second groove wall, the second groove wall is disposed around the circumferential side of the first groove wall, and an installation opening is formed on the side of the second groove wall away from the first groove wall; the positioning reference surface is located on the inner wall of the second groove wall.

[0009] In one embodiment, a clamping groove is provided on the second groove wall, and the clamping groove is detachably clamped and matched with the side of the sensor board to fix the sensor board in the installation groove; the positioning reference surface is located in the clamping groove, and the positioning reference surface is parallel to the sensor board.

[0010] In one embodiment, the engaging grooves are provided on two opposite sides of the second groove wall perpendicular to the sensor board, and the two engaging grooves are respectively used for detachably engaging with two opposite side edges of the sensor board in a one-to-one correspondence.

[0011] In one embodiment, the engaging groove includes a first engaging side, a second engaging side, and a third engaging side. The first engaging side and the second engaging side are oppositely arranged and are both parallel to the sensor board; the third engaging side is connected between the first engaging side and the second engaging side and is perpendicular to the sensor board.

[0012] In one embodiment, the positioning reference plane is located on one of the first engaging side and the second engaging side, and the other of the first engaging side and the second engaging side is provided with a pressing protrusion for pressing the sensor board against the positioning reference plane.

[0013] In one embodiment, the shape of the pressing protrusion is hemispherical.

[0014] In one embodiment, the positioning reference plane is located on the first engaging side or the second engaging side; the tolerance range of the shortest distance between the first engaging side and the second engaging side and the thickness of the side edge of the sensor board is 0 - 0.05 mm.

[0015] In one embodiment, the mounting base further includes a positioning portion for positioning and cooperating with the sensor board to prevent the sensor board from detaching from the mounting slot through the mounting opening.

[0016] In one embodiment, the positioning portion is configured as a positioning protrusion provided on the third engaging side, and the sensor board is provided with a positioning groove corresponding to the positioning protrusion for engaging with the positioning protrusion.

[0017] In one embodiment, the shape of the positioning protrusion is hemispherical, and the shape of the positioning groove fits the positioning protrusion.

[0018] In one embodiment, the positioning portion is configured as a positioning buckle provided beside the mounting opening for engaging with the side edge of the sensor board.

[0019] In one embodiment, the ball seat is located in the middle of the mounting base, and the mounting slot is located on one side of the mounting base; the line connecting the midpoints of the ball seat and the track ball is the mounting axis of the mounting base, and the positioning reference plane forms an inclined angle with the mounting axis of the mounting base.

[0020] Second aspect, in one embodiment, a control panel is provided, which includes the trackball device as described in any one of the above.

[0021] Third aspect, in one embodiment, a medical device is provided, which includes the trackball device as described in any one of the above.

[0022] According to the trackball device, control panel and medical device of the above embodiments, the trackball device includes a mounting base, a trackball and a sensor board. The mounting base includes a ball seat and a mounting groove. The mounting groove has a positioning reference surface, and at least the positioning reference surface and the ball seat are integrally formed structures. The trackball is rotatably mounted on the ball seat. The sensor board is inserted into the mounting groove, and one side of the sensor board abuts against the positioning reference surface. On the one hand, it is more convenient and fast to install the sensor board through the mounting groove, without operations such as screwing, and the influence of screw stress on the sensor board is also eliminated. On the other hand, since the positioning reference surface and the ball seat are integrally formed structures, it is beneficial to ensure the distance accuracy between the positioning reference surface and the ball seat. Furthermore, when one side of the sensor board abuts against the positioning reference surface, it is beneficial to ensure the distance accuracy between the sensor board and the trackball on the ball seat. Description of the Drawings

[0023] Figure 1 It is a cross-sectional view of the trackball device in one embodiment of the present application;

[0024] Figure 2 It is a cross-sectional view of the mounting groove and the sensor board along the Figure 1 A-A direction in this;

[0025] Figure 3 It is of the present application Figure 2 An enlarged view of the C part in this;

[0026] Figure 4 It is a cross-sectional view of the mounting groove and the sensor board along the Figure 1 B-B direction in this;

[0027] Figure 5 It is a schematic diagram of the positioning reference surface and the abutting protrusion in the mounting groove in one embodiment of the present application;

[0028] Reference numerals: 1000, trackball device; 100, mounting base; 110, ball seat; 120, mounting groove; 121, positioning reference surface; 122, first groove wall; 123, second groove wall; 124, mounting opening; 125, clamping groove; 1251, first clamping side; 1252, second clamping side; 1253, third clamping side; 126, abutting protrusion; 127, positioning part; 1271, positioning protrusion; 200, trackball; 300, sensor board; 310, circuit board; 320, sensor; 330, positioning groove. Detailed implementation manners

[0029] The present utility model will be further described in detail below in conjunction with the accompanying drawings through specific implementation manners. Similar elements in different implementation manners adopt related similar element numbers. In the following implementation manners, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, which is to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and general technical knowledge in the art.

[0030] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various implementation manners. At the same time, the steps or actions in the method description can also be reordered or adjusted in a manner obvious to those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a certain embodiment and do not mean that they are necessary sequences, unless it is stated that a certain sequence must be followed.

[0031] The serial numbers assigned to the components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connections (couplings).

[0032] This embodiment provides a medical device.

[0033] Please refer to Figures 1-5 , this medical device includes a trackball device 1000, so that medical staff can perform control operations on the medical device through the trackball device 1000. Specifically, the trackball device 1000 can be arranged on the control panel of the medical device, and the medical device can be an ultrasonic device, a ventilator, an anesthetic machine, or other medical devices.

[0034] On the other hand, this embodiment also provides a control panel.

[0035] Please refer to Figures 1-5 , this control panel includes a trackball device 1000, so that an operator can perform control operations on the control panel through the trackball device 1000. Specifically, the control panel can be applied to the above-mentioned medical device, or can also be applied to other processing devices that require the trackball device 1000 for control.

[0036] On the other hand, this embodiment also provides a trackball device 1000.

[0037] Please refer to Figures 1-5 , the trackball device 1000 includes a mounting base 100, a trackball 200, and a sensor board 300.

[0038] The mounting base 100 includes a ball seat 110 and a mounting groove 120. The mounting groove 120 has a positioning reference surface 121, and at least the positioning reference surface 121 and the ball seat 110 are integrally formed structures. The trackball 200 is rotatably mounted on the ball seat 110. The sensor board 300 is inserted into the mounting groove 120, and one side of the sensor board 300 abuts against the positioning reference surface 121.

[0039] On the one hand, it is more convenient and faster to install the sensor board 300 through the mounting groove 120 without operations such as screwing, and it also eliminates the influence of screw stress on the sensor board 300. On the other hand, since the positioning reference surface 121 and the ball seat 110 are integrally formed structures, it is beneficial to ensure the distance accuracy between the positioning reference surface 121 and the ball seat 110. Furthermore, when one side of the sensor board 300 abuts against the positioning reference surface 121, it is beneficial to ensure the distance accuracy between the sensor board 300 and the trackball 200 on the ball seat 110. It should be noted that the sensor board 300 usually includes a circuit board 310 and a sensor 320 disposed in the middle of the circuit board 310. In the traditional installation scheme, the screw is usually connected to the side of the circuit board 310.

[0040] Please refer to Figure 1 and 2 , in one embodiment, the mounting groove 120 includes a first groove wall 122 and a second groove wall 123. The second groove wall 123 is disposed around the circumferential side of the first groove wall 122, and an installation opening 124 is formed on the side of the second groove wall 123 away from the first groove wall 122. The positioning reference surface 121 is located on the inner wall of the second groove wall 123.

[0041] On the one hand, the assembly personnel can insert the sensor board 300 into the mounting groove 120 from the installation opening 124, thereby realizing the installation of the sensor board 300 in the mounting groove 120. On the other hand, since the positioning reference surface 121 is located on the inner wall of the second groove wall 123, when the sensor board 300 is inserted into the mounting groove 120, one side surface of the sensor board 300 abuts against the positioning reference surface 121 on the second groove wall 123, which is beneficial to realize the precise positioning between the sensor board 300 and the trackball 200.

[0042] Please refer to Figures 1-3, in one embodiment, a clamping groove 125 is provided on the second groove wall 123. The clamping groove 125 is detachably clamped and matched with the side of the sensor board card 300 to fix the sensor board card 300 in the installation groove 120. The positioning reference surface 121 is located in the clamping groove 125, and the positioning reference surface 121 is parallel to the sensor board card 300.

[0043] On the one hand, when the sensor board card 300 is inserted into the installation groove 120, the clamping groove 125 is detachably clamped and matched with the side of the sensor board card 300, thereby realizing the fixation of the sensor board card 300 in the installation groove 120, making it difficult for the sensor board card 300 to fall out of the installation groove 120, and further ensuring the stability of the installation of the sensor board card 300 in the installation groove 120. On the other hand, since the positioning reference surface 121 is located in the clamping groove 125, and the sensor board card 300 must be closely matched when clamped with the clamping groove 125, this makes the sensor board card 300 abut against the positioning reference surface 121, which is beneficial to ensuring the precise positioning between the sensor board card 300 and the trackball 200. It should be noted that "the positioning reference surface 121 is parallel to the sensor board card 300" can be understood as the positioning reference surface 121 is parallel to the circuit board 310 of the sensor board card 300.

[0044] Please refer to Figures 1-3 , in one embodiment, clamping grooves 125 are provided on both opposite sides of the second groove wall 123 perpendicular to the sensor board card 300. The two clamping grooves 125 are respectively used for detachably clamping and corresponding to two opposite sides on the sensor board card 300 one by one.

[0045] The two opposite sides of the sensor board card 300 are clamped tightly by the two clamping grooves 125, making the installation of the sensor board card 300 in the installation groove 120 more stable. It should be noted that since the sensor board card 300 usually includes a circuit board 310 and a sensor 320, and the sensor 320 is usually arranged in the middle of the circuit board 310, and the thickness of the sensor 320 is usually greater than the thickness of the circuit board 310. Here, the "thickness" can be understood as the dimension along the direction perpendicular to the circuit board 310. Therefore, the thicknesses of the two clamping grooves 125 are both smaller than the thickness in the middle of the installation groove 120, that is, the two clamping grooves 125 are respectively clamped with the opposite sides of the circuit board 310, and the middle of the installation groove 120 is used to accommodate the sensor 320 with a larger thickness.

[0046] Please refer to Figures 1-3, in one embodiment, the clamping groove 125 includes a first clamping side 1251, a second clamping side 1252, and a third clamping side 1253. The first clamping side 1251 and the second clamping side 1252 are oppositely arranged and are both parallel to the sensor board 300. The third clamping side 1253 is connected between the first clamping side 1251 and the second clamping side 1252 and is perpendicular to the sensor board 300.

[0047] The clamping groove 125 facing the side of the sensor board 300 is formed by the first connection side, the second connection side, and the third connection side. When the sensor board 300 is clamped with the clamping groove 125, the first clamping side 1251 and the second clamping side 1252 clamp the sensor board 300 from two opposite surfaces of the sensor board 300, while the third clamping side 1253 contacts the side of the sensor board 300.

[0048] Please refer to Figures 1-3 and 5, in one embodiment, the positioning reference surface 121 is located on one of the first clamping side 1251 and the second clamping side 1252, and the other of the first clamping side 1251 and the second clamping side 1252 is provided with a pressing protrusion 126 for pressing the sensor board 300 against the positioning reference surface 121.

[0049] Since the pressing protrusion 126 is provided on the opposite side of the positioning reference surface 121, when the sensor board 300 is clamped with the clamping groove 125, the sensor board 300 is pressed against the positioning reference surface 121 by the pressing protrusion 126, making the fit between the sensor board 300 and the positioning reference surface 121 closer, thus further facilitating the improvement of the accuracy of the distance between the sensor board 300 and the trackball 200.

[0050] Please refer to Figures 1-3 and 5, in one embodiment, the shape of the pressing protrusion 126 is hemispherical.

[0051] When the assembler inserts the sensor board 300 into the clamping groove 125, the hemispherical surface of the pressing protrusion 126 guides the movement of the sensor board 300 inserted into the clamping groove 125, thus making it easier to achieve the fit between the sensor board 300 and the clamping groove 125. In other embodiments, the pressing protrusion 126 can also be trapezoidal or frustum-shaped, etc., and the inclined surfaces of these shapes can also play the above guiding role.

[0052] Please refer to Figures 1-3 , in one embodiment, the positioning reference surface 121 is located on the first clamping side 1251 or the second clamping side 1252. The tolerance range of the shortest distance between the first clamping side 1251 and the second clamping side 1252 and the thickness of the side of the sensor board 300 is 0 - 0.05 mm.

[0053] By controlling the tolerance between the thickness of the side of the sensor board 300 and the thickness of the clamping groove 125 within 0 - 0.05 mm, the assembly accuracy of the sensor board 300 and the clamping groove 125 is relatively high. Thus, when the sensor board 300 is inserted into the clamping groove 125, the first clamping side 1251 or the second clamping side 1252 opposite to the positioning reference surface 121 functions to press the sensor board 300 tightly against the positioning reference surface 121. That is to say, a similar function to the pressing protrusion 126 can be achieved by improving the accuracy of the clamping groove 125. It should be noted that the "thickness of the side of the sensor board 300" can be understood as the thickness of the circuit board 310 of the sensor board 300. Specifically, the thickness direction of the sensor board 300 can be regarded as Figure 2 the direction shown by the central axis L2. The area where the side of the sensor board 300 cooperates with the clamping groove 125 can be regarded as Figure 4 the area shown by the shaded area D. The number of the pressing protrusions 126 can be one, two, three or other appropriate numbers.

[0054] Please refer to Figures 1-4 , in an embodiment, the mounting base 100 further includes a positioning portion 127, and the positioning portion 127 is used for positioning and cooperating with the sensor board 300 to prevent the sensor board 300 from detaching from the mounting groove 120 through the mounting opening 124.

[0055] When the assembler inserts the sensor board 300 into the mounting groove 120, the positioning portion 127 is in positioning cooperation with the sensor board 300, thereby generating a resistance to prevent the sensor board 300 from detaching from the mounting groove 120 through the mounting opening 124, so that the sensor board 300 is not easily dropped out of the mounting groove 120 from the mounting opening 124, which is beneficial to improving the installation stability of the sensor board 300 in the mounting groove 120. Specifically, the cooperation mode between the positioning portion 127 and the sensor board 300 includes but is not limited to clamping, damping contact or magnetic attraction cooperation, etc.

[0056] Please refer to Figures 1-4 , in an embodiment, the positioning portion 127 is configured as a positioning protrusion 1271, the positioning protrusion 1271 is provided on the third clamping side 1253, and a positioning groove 330 corresponding to the positioning protrusion 1271 is provided on the sensor board 300, and the positioning protrusion 1271 is used for clamping with the positioning groove 330.

[0057] When the assembler inserts the sensor board 300 into the installation slot 120, the positioning protrusion 1271 is snap-fitted with the positioning groove 330. The snap-force between the positioning protrusion 1271 and the positioning groove 330 prevents the sensor board 300 from detaching from the installation slot 120 through the installation opening 124, making it difficult for the sensor board 300 to fall out of the installation slot 120 from the installation opening 124, thereby facilitating the improvement of the installation stability of the sensor board 300 in the installation slot 120. Specifically, the number of the positioning protrusion 1271 and the positioning groove 330 can be one, two, or three, as long as the positioning protrusion 1271 and the positioning groove 330 are arranged in one-to-one correspondence.

[0058] Please refer to Figures 1-4 , in an embodiment, the shape of the positioning protrusion 1271 is hemispherical, and the shape of the positioning groove 330 fits the positioning protrusion 1271.

[0059] On the one hand, when the assembler inserts the sensor board 300 into the snap-fitting groove 125, the hemispherical surface of the positioning protrusion 1271 guides the movement of the sensor board 300 inserted into the snap-fitting groove 125, thereby making it easier to achieve the cooperation between the sensor board 300 and the snap-fitting groove 125. On the other hand, when it is necessary to remove the sensor board 300 from the installation slot 120, the hemispherical surface of the positioning protrusion 1271 guides the movement of itself away from the positioning groove 330, thereby making it easier to disassemble the sensor board 300 from the installation slot 120, and further facilitating the detachable installation of the sensor board 300 in the installation slot 120.

[0060] Please refer to Figures 1-4 , in an embodiment, the positioning portion 127 is configured as a positioning snap (not shown), the positioning snap is disposed beside the installation opening 124, and the positioning snap is used for snap-fitting with the side of the sensor board 300.

[0061] When the assembler inserts the sensor board 300 into the installation slot 120, the positioning snap is snap-fitted with the side of the sensor board 300, thereby making the installation of the sensor board 300 in the installation slot 120 more stable. Specifically, one end of the positioning snap can be connected to the side of the installation opening 124, and the other end extends away from the installation opening 124 and forms a hook-shaped buckling position, and the hook-shaped buckling position is snap-fitted with the side of the sensor board 300.

[0062] Please refer to Figures 1-3 , in an embodiment, the ball seat 110 is located in the middle of the installation base 100, and the installation slot 120 is located on one side of the installation base 100. The connection line between the midpoint of the ball seat 110 and the midpoint of the trackball 200 is the installation axis of the installation base 100, and the positioning reference plane 121 forms an inclined angle with the installation axis of the installation base 100.

[0063] On the one hand, the installation groove 120 is located on one side of the installation base 100. Compared with the traditional solution of installing the sensor board 300 at the bottom of the installation base 100, the utilization rate of the side space of the installation base is improved, and the installation space at the bottom of the installation base 100 is released. On the other hand, the positioning reference surface 121 forms an inclined angle with the installation axis of the installation base 100, so that when the sensor board 300 abuts against the positioning reference surface 121, the distance between the sensor 320 and the trackball 200 is within a suitable range. Of course, in other embodiments, according to the change of design requirements, the positioning reference surface 121 can also be parallel or perpendicular to the installation axis of the installation base 100. Specifically, the installation axis can be regarded as Figure 1 the axis L1 in

[0064] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art of the present invention, according to the idea of the present invention, several simple deductions, deformations or substitutions can also be made.

Claims

1. A trackball device, characterized in that: include: A mounting base, the mounting base comprising a ball seat and a mounting groove, the mounting groove having a positioning reference surface, at least the positioning reference surface and the ball seat are an integrally formed structure; a trackball rotatably mounted on the ball seat; and a sensor card, wherein the sensor card is inserted into the installation slot, and one side of the sensor card contacts the positioning reference surface.

2. The trackball device according to claim 1, wherein: The mounting groove includes a first groove wall and a second groove wall, wherein the second groove wall is arranged around the circumference of the first groove wall, and a mounting opening is formed on a side of the second groove wall away from the first groove wall; the positioning reference surface is located on the inner wall of the second groove wall.

3. The trackball device according to claim 2, wherein: The second slot wall is provided with a snap-in slot, which is detachably snap-fitted with the side of the sensor board to fix the sensor board in the installation slot; the positioning reference surface is located in the snap-in slot, and the positioning reference surface is parallel to the sensor board.

4. The trackball device according to claim 3, wherein: The second slot wall is provided with the said clamping slots on two opposite sides perpendicular to the sensor board, and the two said clamping slots are respectively used for detachably clamping with two opposite side edges of the sensor board in a one-to-one correspondence.

5. The trackball device according to claim 3, wherein: The snap-in slot includes a first snap-in side, a second snap-in side and a third snap-in side, wherein the first snap-in side and the second snap-in side are arranged opposite to each other and are both parallel to the sensor board; the third snap-in side is connected between the first snap-in side and the second snap-in side and is perpendicular to the sensor board.

6. The trackball device according to claim 5, wherein: The positioning reference surface is located at one of the first clamping side and the second clamping side, and the other of the first clamping side and the second clamping side is provided with a pressing protrusion, and the pressing protrusion is used to press the sensor board against the positioning reference surface.

7. The trackball device according to claim 6, wherein: The shape of the pressing protrusion is hemispherical.

8. The trackball device according to claim 5, wherein: The positioning reference plane is located at the first clamping side or the second clamping side; the tolerance range of the shortest distance between the first clamping side and the second clamping side and the thickness of the side edge of the sensor board is 0-0.05mm.

9. The trackball device according to claim 5, wherein: The installation base also includes a positioning portion, which is used to position and cooperate with the sensor board to prevent the sensor board from being separated from the installation slot from the installation opening.

10. The trackball device according to claim 9, wherein: The positioning portion is configured as a positioning protrusion, the positioning protrusion is arranged on the third clamping side, a positioning groove corresponding to the positioning protrusion is provided on the sensor board, and the positioning protrusion is used to clamp with the positioning groove.

11. The trackball device according to claim 10, wherein: The positioning protrusion is hemispherical in shape, and the positioning groove is matched with the positioning protrusion in shape.

12. The trackball device according to claim 9, wherein: The positioning portion is configured as a positioning buckle, the positioning buckle is arranged beside the installation opening, and the positioning buckle is used to be clamped with the side of the sensor board.

13. The trackball device according to any one of claims 1 to 11, characterized in that: The ball seat is located in the middle of the mounting base, and the mounting groove is located on one side of the mounting base; the line connecting the midpoint of the ball seat and the midpoint of the trackball is the mounting axis of the mounting base, and the positioning reference plane forms an inclined angle with the mounting axis of the mounting base.

14. A control panel, characterized in that: The invention comprises a trackball device as claimed in any one of claims 1 to 13.

15. A medical device, characterized in that: The invention comprises a trackball device as claimed in any one of claims 1 to 13.

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