Quick fixing device for PCB (printed circuit board) of endoscope host

Abstract

The utility model relates to a quick fixing device for an endoscope host PCB, which comprises a plurality of positioning columns, a first locking assembly and a second locking assembly, the positioning columns are arranged along the peripheral side edge of the PCB, each positioning column comprises a first column body and a second column body, the diameter of the first column body is larger than that of the second column body, the first column body is fixed on a bottom plate, and the second column body is fixed on the bottom plate. The second column body is connected to the top surface of the first column body, and a positioning hole for the second column body to penetrate through is formed in the PCB; a plurality of groups of first locking assemblies and second locking assemblies are arranged along the peripheral side edge of the PCB; the first locking assembly comprises fixing plates and a first locking plate, the fixing plates are located on the two sides of the first locking plate in the width direction, the bottom ends of the fixing plates are fixed to the bottom plate, the first locking plate comprises a first plate body and a second plate body which are integrally formed, and the first plate body and the second plate body are connected to enable the first locking plate to be in a V shape. The position of the first plate body close to the middle is hinged to the top end of the fixing plate. According to the invention, the PCB and the bottom plate can be conveniently and rapidly fixed.

Description

Technical Field

[0001] The utility model relates to the field of endoscope host PCB board installation, in particular to a quick fixing device for an endoscope host PCB board. Background Art

[0002] With the rapid development of science and medical technology, endoscopic minimally invasive or non-invasive medical examination and treatment have become widely popular. In endoscopic examination or treatment, an endoscope host needs to be used in conjunction.

[0003] The traditional endoscope host includes a base plate and a PCB board fixed on the base plate. The PCB board and the base plate are fixed and locked by screws, which is cumbersome to operate. Therefore, a quick fixing device is needed to quickly fix and lock the PCB board on the base plate. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a quick fixing device for an endoscope host PCB board.

[0005] The present application provides a quick fixing device for an endoscope host PCB board using the following technical solution:

[0006] A quick fixing device for an endoscope host PCB board, comprising a positioning column, a first locking assembly and a second locking assembly, wherein a plurality of the positioning columns are arranged along the circumferential side of the PCB board, the positioning column comprises a first column and a second column, the diameter of the first column is larger than the diameter of the second column, the first column is fixed to a bottom plate, the second column is connected to the top surface of the first column, a positioning hole for the second column to pass through is provided on the PCB board, and the bottom surface of the PCB board abuts against the top surface of the first column;

[0007] The first locking components and the second locking components are arranged in a plurality of groups along the peripheral side of the PCB board;

[0008] The first locking assembly includes a fixing plate and a first locking plate, wherein the fixing plates are located on both sides of the first locking plate in a width direction, and the bottom end of the fixing plate is fixed to the bottom plate, and the first locking plate includes an integrally formed first plate body and a second plate body, wherein the first plate body and the second plate body are connected so that the first locking plate is in a "V" shape, and the first plate body is hinged to the top end of the fixing plate near the middle;

[0009] When the first locking assembly fixes the PCB board, the opening of the first locking plate faces downward, the inner side wall of the first plate body away from the end of the second plate body abuts against the outer side wall of the PCB board, and the end surface of the second plate body away from the end of the first plate body abuts against the top surface of the PCB board;

[0010] When the first locking assembly releases the fixation of the PCB board, the opening of the first locking plate faces the PCB board, the inner side wall of the first plate body away from one end of the second plate body contacts the bottom surface of the PCB board, and the second plate body is separated from the PCB board.

[0011] By adopting the above technical solution, when the PCB board is fixed by the first locking assembly, the PCB board is pressed downward, and the PCB board pushes the first plate body during the descending process, and the first plate body rotates, so that the end surface of the second plate body away from one end of the first plate body abuts against the top surface of the PCB board. At this time, the bottom surface of the PCB board abuts against the top surface of the first column, and the top surface of the PCB board abuts against the second plate body, so that the PCB board and the bottom plate are quickly fixed;

[0012] When the fixing of the first locking assembly to the PCB needs to be released, the second plate is pulled in a direction away from the PCB. The first plate gradually contacts the PCB after a period of interference fit, until the inner side wall of the first plate away from the end of the second plate contacts the bottom surface of the PCB. At this time, the second plate is out of contact with the PCB, and unlocking is completed.

[0013] The above process is easy to operate and realizes the rapid fixing and unlocking of the PCB board and the base plate.

[0014] Preferably, the end surface of the first plate body away from one end of the second plate body is arranged as a yielding inclined surface, and when the first locking assembly fixes the PCB board, the yielding inclined surface tilts downward from the direction from approaching the PCB board to away from the PCB board.

[0015] By adopting the above technical solution, the smoothness of the first plate body being separated from the PCB is improved.

[0016] Preferably, the second locking assembly comprises a support seat, a second locking plate, a connecting plate and an operating handle, the support seat comprises a support plate, and the support plates are located on both sides of the second locking plate in the width direction;

[0017] The second locking plate comprises an integrally formed third plate body and a fourth plate body, the third plate body and the fourth plate body are connected so that the second locking plate is in a "V" shape, the length of the third plate body is shorter than the length of the fourth plate body, and one end of the third plate body away from the fourth plate body is hinged to the top end of the support plate;

[0018] The connecting plate is located on a side of the second locking plate away from the PCB board, and one end of the connecting plate is hinged to the top end of the supporting plate;

[0019] The operating handle includes a connecting portion, a transition portion and an operating portion, the connecting portion includes two connecting rods, the two connecting rods are respectively located on both sides of the width direction of the second locking plate, one end of the connecting rod is hinged to the connection between the third plate body and the fourth plate body, the other end of the connecting rod is hinged to an end of the connecting plate away from the support plate, and the transition portion is located between the connecting portion and the operating portion;

[0020] The axis of the hinge shaft between the connecting rod and the second locking plate is the first axis, the axis of the hinge shaft between the connecting rod and the connecting plate is the second axis, and the axis of the hinge shaft between the connecting plate and the supporting plate is the third axis;

[0021] When the second locking assembly fixes the PCB board, the inner side wall of the fourth plate body away from one end of the third plate body abuts against the top surface of the PCB board, and at this time, the first axis, the second axis, and the third axis are coplanar;

[0022] When the second locking assembly releases the fixation of the PCB board, the fourth plate body is separated from the PCB board. At this time, the first axis, the second axis and the third axis are distributed in a triangle.

[0023] By adopting the above technical solution, when the PCB board is fixed by the second locking assembly, the operating handle is rotated in the direction close to the PCB board, so that the inner side wall of the fourth plate body away from the end of the third plate body abuts against the top surface of the PCB board, and the first axis, the second axis, and the third axis are coplanar, and the second locking plate, the connecting plate and the operating handle are mutually restricted and difficult to move, thereby locking the PCB board and the bottom plate;

[0024] When it is necessary to release the fixing of the second locking assembly on the PCB board, the operating handle is rotated in a direction away from the PCB board, so that the fourth plate body is separated from the PCB board, and the first axis, the second axis, and the third axis are distributed in a triangular shape, and the second locking plate, the connecting plate, and the operating handle are free from restraint and can move, thereby completing the unlocking;

[0025] The above process is easy to operate and realizes the rapid fixing and unlocking of the PCB board and the base plate.

[0026] Preferably, the transition portion includes a transition rod, one connecting rod corresponds to one transition rod, and the transition rod is connected to the connecting rod and is in a "V" shape;

[0027] The operating part is an operating plate, which is fixedly connected to one end of the transition part away from the connecting part, and the operating plate is connected to two transition rods at the same time.

[0028] By adopting the above technical solution, it is convenient for the staff to apply force to the operating handle.

[0029] Preferably, the fixing plate is in an "L" shape, and the horizontal section of the fixing plate is fixed to the base plate by connecting screws.

[0030] Preferably, the support seat also includes a horizontal plate, the support plate is fixedly connected to the top surface of the horizontal plate, the length of the horizontal plate is greater than the distance between the two support plates, and the horizontal plate is fixed to the bottom plate by fixing screws.

[0031] By adopting the above technical solution, the space occupied by the first unlocking component is smaller than that occupied by the second unlocking component, and the friction between the second unlocking component and the PCB board is smaller than the friction between the first unlocking component and the PCB board. Therefore, the first unlocking component and the second unlocking component can be placed in appropriate positions according to actual conditions, and the position of the first unlocking component can be fixed by connecting screws, and the position of the second unlocking component can be fixed by fixing screws. The first unlocking component and the second unlocking component can also be disassembled, and the second unlocking component and the first unlocking component are used together to realize quick fixing and unlocking of the PCB board to the base plate.

[0032] In summary, this application includes the following beneficial technical effects:

[0033] The second unlocking component cooperates with the first unlocking component to realize the rapid fixing and unlocking of the PCB board to the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of a quick fixing device for an endoscope host PCB board when the first locking assembly and the second locking assembly are both in a locked state in an embodiment of the present application.

[0035] Figure 2 In the embodiment of the present application, a portion of the fixing plate is hidden, and the entire support seat is hidden, so as to show the structural schematic diagram when the first locking assembly and the second locking assembly are both in a locked state.

[0036] Figure 3 It is a structural schematic diagram of an embodiment of the present application when the first locking assembly and the second locking assembly are both in an unlocked state. At this time, the PCB board is lifted up a certain distance by the first plate body of the first locking plate.

[0037] Figure 4 yes Figure 1 Enlarged view of point A in the middle.

[0038] Explanation of the accompanying drawings: 1. PCB board; 11. Positioning hole; 2. Bottom plate; 3. Positioning column; 31. First column; 32. Second column; 4. First locking assembly; 41. Fixing plate; 411. Connecting screw; 42. First locking plate; 421. First plate; 4211. Yield slope; 422. Second plate; 5. Second locking assembly; 51. Support seat; 511. Support plate; 512. Horizontal plate; 5121. Fixing screw; 52. Second locking plate; 521. Third plate; 522. Fourth plate; 53. Connecting plate; 54. Operating handle; 541. Connecting portion; 542. Transition portion; 543. Operating portion. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-4 This application is described in further detail.

[0040] The embodiment of the present application discloses a quick fixing device for an endoscope host PCB board.

[0041] Reference Figure 1-4 The quick fixing device for the endoscope host PCB board includes a positioning column 3, a first locking component 4 and a second locking component 5.

[0042] A plurality of positioning posts 3 are arranged along the circumferential side of the PCB board 1. The positioning posts 3 include an integrally formed first column 31 and a second column 32. The diameter of the first column 31 is larger than the diameter of the second column 32. The first column 31 is fixed on the base plate 2, and the second column 32 is connected to the top surface of the first column 31. A positioning hole 11 for the second column 32 to pass through is opened on the PCB board 1, and the bottom surface of the PCB board 1 abuts against the top surface of the first column 31.

[0043] Several groups of the first locking components 4 and the second locking components 5 are arranged along the peripheral side of the PCB board 1 .

[0044] The first locking assembly 4 includes a fixing plate 41 and a first locking plate 42. The fixing plate 41 is located on both sides of the first locking plate 42 in the width direction. The bottom end of the fixing plate 41 is fixed to the bottom plate 2. The first locking plate 42 includes an integrally formed first plate body 421 and a second plate body 422. The first plate body 421 and the second plate body 422 are connected to make the first locking plate 42 present a "V" shape. The first plate body 421 is hinged to the top end of the fixing plate 41 near the middle.

[0045] When the first locking assembly 4 fixes the PCB board 1, the first unlocking assembly 4 enters a locked state, the opening of the first locking plate 42 faces downward, the inner side wall of the first plate body 421 away from the end of the second plate body 422 abuts against the outer side wall of the PCB board 1, and the end surface of the second plate body 422 away from the end of the first plate body 421 abuts against the top surface of the PCB board 1;

[0046] When the first locking assembly 4 releases the fixation on the PCB board 1, the first unlocking assembly 4 enters the unlocking state, the opening of the first locking plate 42 faces the PCB board 1, the inner side wall of the first plate body 421 away from one end of the second plate body 422 contacts the bottom surface of the PCB board 1, and the second plate body 422 is separated from the PCB board 1.

[0047] The end surface of the first plate body 421 away from one end of the second plate body 422 is set as a yield slope 4211. When the first locking assembly 4 fixes the PCB board 1, the yield slope 4211 tilts downward from the direction close to the PCB board 1 to the direction away from the PCB board 1, thereby improving the smoothness of the first plate body 421 separating from the PCB board 1.

[0048] The second locking assembly 5 includes a support base 51 , a second locking plate 52 , a connecting plate 53 and an operating handle 54 . The support base 51 includes support plates 511 . The support plates 511 are located on both sides of the second locking plate 52 in the width direction.

[0049] The second locking plate 52 includes an integrally formed third plate body 521 and a fourth plate body 522. The third plate body 521 and the fourth plate body 522 are connected to make the second locking plate 52 present a "V" shape. The length of the third plate body 521 is smaller than the length of the fourth plate body 522. The end of the third plate body 521 away from the fourth plate body 522 is hinged to the top of the support plate 511.

[0050] The connecting plate 53 is located on a side of the second locking plate 52 away from the PCB board 1 and one end of the connecting plate 53 is hinged to the top end of the supporting plate 511 .

[0051] The operating handle 54 includes a connecting portion 541, a transition portion 542 and an operating portion 543. The connecting portion 541 includes two connecting rods, and the two connecting rods are respectively located on both sides of the width direction of the second locking plate 52. One end of the connecting rod is hinged to the connection between the third plate body 521 and the fourth plate body 522, and the other end of the connecting rod is hinged to one end of the connecting plate 53 away from the support plate 511. The transition portion 542 is located between the connecting portion 541 and the operating portion 543.

[0052] The axis of the hinge axis between the connecting rod and the second locking plate 52 is the first axis, the axis of the hinge axis between the connecting rod and the connecting plate 53 is the second axis, and the axis of the hinge axis between the connecting plate 53 and the supporting plate 511 is the third axis.

[0053] When the second locking assembly 5 fixes the PCB board 1, the second locking assembly 5 enters a locking state, and the inner side wall of the fourth plate body 522 away from one end of the third plate body 521 abuts against the top surface of the PCB board 1. At this time, the first axis, the second axis, and the third axis are coplanar;

[0054] When the second locking assembly 5 releases the fixation of the PCB board 1, the second locking assembly 5 enters an unlocked state, and the fourth plate body 522 is separated from the PCB board 1. At this time, the first axis, the second axis, and the third axis are distributed in a triangle.

[0055] The transition portion 542 includes a transition rod, one connecting rod corresponds to one transition rod, the transition rod is connected to the connecting rod and is in a "V" shape, the operating portion 543 is an operating panel, the operating panel is fixedly connected to one end of the transition portion 542 away from the connecting portion 541, and the operating panel is connected to the two transition rods at the same time, so that the staff can apply force to the operating handle 54.

[0056] The fixing plate 41 is in an "L" shape, and the horizontal section of the fixing plate 41 is fixed to the bottom plate 2 by means of connecting screws 411. The support seat 51 also includes a horizontal plate 512, and the supporting plate 511 is fixedly connected to the top surface of the horizontal plate 512, and the length of the horizontal plate 512 is greater than the distance between the two supporting plates 511, and the horizontal plate 512 is fixed to the bottom plate 2 by means of fixing screws 5121.

[0057] The space occupied by the first unlocking component is smaller than that occupied by the second unlocking component, and the friction between the second unlocking component and the PCB board 1 is smaller than the friction between the first unlocking component and the PCB board 1. Therefore, the first unlocking component and the second unlocking component can be placed at appropriate positions according to actual conditions, and the position of the first unlocking component can be fixed by connecting screws 411, and the position of the second unlocking component can be fixed by fixing screws 5121. The first unlocking component and the second unlocking component can also be disassembled, and the second unlocking component and the first unlocking component are used together to realize the rapid fixation and unlocking of the PCB board 1 to the base plate 2.

[0058] The implementation principle of a quick fixing device for an endoscope host PCB board in the embodiment of the present application is as follows:

[0059] When the PCB board 1 is fixed by the first locking assembly 4, the PCB board 1 is pressed downward, and the PCB board 1 pushes the first plate body 421 during the descending process, and the first plate body 421 rotates, so that the end surface of the second plate body 422 away from the end of the first plate body 421 abuts against the top surface of the PCB board 1. At this time, the bottom surface of the PCB board 1 abuts against the top surface of the first column 31, and the top surface of the PCB board 1 abuts against the second plate body 422, so that the PCB board 1 and the bottom plate 2 are quickly fixed;

[0060] When it is necessary to release the fixation of the first locking assembly 4 on the PCB board 1, the second plate body 422 is pulled in the direction away from the PCB board 1, and the first plate body 421 and the PCB board 1 gradually come into contact with the PCB board 1 after a period of interference fit, until the inner side wall of the first plate body 421 away from the end of the second plate body 422 contacts the bottom surface of the PCB board 1, at which time the second plate body 422 has been disengaged from the PCB board 1, and the unlocking is completed.

[0061] When the PCB board 1 is fixed by the second locking assembly 5, the operating handle 54 is rotated toward the direction close to the PCB board 1, so that the inner side wall of the fourth plate body 522 away from the end of the third plate body 521 abuts against the top surface of the PCB board 1, and the first axis, the second axis, and the third axis are coplanar, and the second locking plate 52, the connecting plate 53 and the operating handle 54 are mutually restricted and difficult to move, thereby locking the PCB board 1 and the bottom plate 2;

[0062] When it is necessary to release the fixation of the second locking assembly 5 on the PCB board 1, the operating handle 54 is rotated in the direction away from the PCB board 1, so that the fourth plate body 522 is separated from the PCB board 1, and the first axis, the second axis, and the third axis are distributed in a triangular shape, and the second locking plate 52, the connecting plate 53 and the operating handle 54 lose the restraint between each other and can move, thereby completing the unlocking.

[0063] The above process is easy to operate and realizes the rapid fixing and unlocking of the PCB board 1 and the base plate 2.

[0064] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A quick fixing device for an endoscope host PCB board, characterized in that: The invention comprises a positioning column (3), a first locking component (4) and a second locking component (5), wherein a plurality of the positioning columns (3) are arranged along the circumferential side of a PCB board (1), and the positioning column (3) comprises a first column (31) and a second column (32), wherein the diameter of the first column (31) is greater than the diameter of the second column (32), the first column (31) is fixed on a bottom plate (2), the second column (32) is connected to the top surface of the first column (31), a positioning hole for the second column (32) to pass through is provided on the PCB board (1), and the bottom surface of the PCB board (1) is in contact with the top surface of the first column (31); The first locking components (4) and the second locking components (5) are arranged in a plurality of groups along the peripheral side of the PCB board (1); The first locking assembly (4) comprises a fixing plate (41) and a first locking plate (42), wherein the fixing plates (41) are located on both sides of the first locking plate (42) in a width direction, and the bottom end of the fixing plate (41) is fixed to the bottom plate (2), and the first locking plate (42) comprises an integrally formed first plate body (421) and a second plate body (422), wherein the first plate body (421) and the second plate body (422) are connected so that the first locking plate (42) is in a "V" shape, and the first plate body (421) is hinged to the top end of the fixing plate (41) near the middle; When the first locking assembly (4) fixes the PCB board (1), the opening of the first locking plate (42) faces downward, the inner side wall of the first plate body (421) away from the end of the second plate body (422) abuts against the outer side wall of the PCB board (1), and the end surface of the second plate body (422) away from the end of the first plate body (421) abuts against the top surface of the PCB board (1); When the first locking assembly (4) releases the fixation on the PCB board (1), the opening of the first locking plate (42) faces the PCB board (1), the inner side wall of the first plate body (421) away from one end of the second plate body (422) contacts the bottom surface of the PCB board (1), and the second plate body (422) is detached from the PCB board (1).

2. The quick fixing device for the PCB board of the endoscope host according to claim 1 is characterized in that: The end surface of the first plate body (421) away from one end of the second plate body (422) is arranged as a paving inclined surface (4211); when the first locking assembly (4) fixes the PCB board (1), the paving inclined surface (4211) is inclined downward in a direction from approaching the PCB board (1) to away from the PCB board (1).

3. The quick fixing device for the PCB board of the endoscope host according to claim 1 is characterized in that: The second locking assembly (5) comprises a support seat (51), a second locking plate (52), a connecting plate (53) and an operating handle (54); the support seat (51) comprises a support plate (511), and the support plates (511) are located on both sides of the second locking plate (52) in a width direction; The second locking plate (52) comprises an integrally formed third plate body (521) and a fourth plate body (522); the third plate body (521) and the fourth plate body (522) are connected so that the second locking plate (52) is in a "V" shape; the length of the third plate body (521) is smaller than the length of the fourth plate body (522); and one end of the third plate body (521) away from the fourth plate body (522) is hinged to the top end of the support plate (511); The connecting plate (53) is located on a side of the second locking plate (52) away from the PCB board (1), and one end of the connecting plate (53) is hinged to the top end of the supporting plate (511); The operating handle (54) comprises a connecting portion (541), a transition portion (542) and an operating portion (543); the connecting portion (541) comprises two connecting rods, the two connecting rods are respectively located on both sides of the width direction of the second locking plate (52); one end of the connecting rod is hinged to the connection between the third plate body (521) and the fourth plate body (522); the other end of the connecting rod is hinged to an end of the connecting plate (53) away from the support plate (511); the transition portion (542) is located between the connecting portion (541) and the operating portion (543); The axis of the hinge shaft between the connecting rod and the second locking plate (52) is the first axis, the axis of the hinge shaft between the connecting rod and the connecting plate (53) is the second axis, and the axis of the hinge shaft between the connecting plate (53) and the supporting plate (511) is the third axis; When the second locking assembly (5) fixes the PCB board (1), the inner side wall of the fourth plate body (522) away from one end of the third plate body (521) abuts against the top surface of the PCB board (1), and at this time, the first axis, the second axis, and the third axis are coplanar; When the second locking assembly (5) releases the fixation on the PCB board (1), the fourth plate body (522) is separated from the PCB board (1), and at this time, the first axis, the second axis and the third axis are distributed in a triangle.

4. The quick fixing device for the PCB board of the endoscope host according to claim 3 is characterized in that: The transition part (542) includes a transition rod, one connecting rod corresponds to one transition rod, and the transition rod is connected to the connecting rod and is in a "V" shape; The operating portion (543) is an operating panel, which is fixedly connected to an end of the transition portion (542) away from the connecting portion (541), and is connected to two transition rods at the same time.

5. The quick fixing device for the PCB board of an endoscope host according to claim 1, characterized in that: The fixing plate (41) is L-shaped, and the horizontal section of the fixing plate (41) is fixed to the bottom plate (2) via connecting screws (411).

6. The quick fixing device for the PCB board of an endoscope host according to claim 3 is characterized in that: The support seat (51) further comprises a horizontal plate (512), wherein the support plate (511) is fixedly connected to the top surface of the horizontal plate (512), the length of the horizontal plate (512) is greater than the distance between the two support plates (511), and the horizontal plate (512) is fixed to the bottom plate (2) by means of fixing screws (5121).

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