Image acquisition device and switch machine

Abstract

The present invention discloses an image acquisition device and a switch machine, wherein the image acquisition device comprises a device base, an upper shell and a device mounting base plate; the device base comprises a horizontally distributed fixing plate, a connecting plate and an upper cover plate; a vertically distributed connecting plate is fixedly provided on the top rear side of the fixing plate; a horizontally distributed upper cover plate is provided on the top rear side of the connecting plate; a hollow upper shell with an open bottom is provided on the bottom of the upper cover plate; a device mounting base plate is provided on the bottom of the upper shell; the upper cover plate, the upper shell and the device mounting base plate together form a hollow device mounting shell; at least one camera module and a lighting lamp group are provided in the device mounting shell; the image acquisition device of the present invention has a strong waterproof function, and can effectively protect the electronic devices (such as camera modules and lighting lamp groups) installed thereon, effectively avoid damage to the electronic devices caused by rainwater, and improve the service life of the entire image acquisition device.

Description

Technical Field

[0001] The present invention relates to the technical field of image monitoring, and in particular to an image acquisition device and a switch machine. Background Art

[0002] A switch is an important signal infrastructure device used to reliably switch the position of a turnout, change the direction of turnout opening, lock the switch point rail, and reflect the position of the turnout. It can effectively ensure driving safety, improve transportation efficiency, and improve the labor intensity of drivers. The function of a switch is to switch and lock the point rail (point rail), change the direction of turnout opening, and reflect the position status of the point rail (point rail) through the contact. The switch is one of the important equipment to ensure the safety of railway transportation. If the switch fails to switch the turnout into place normally, it will affect the normal operation of the train. In serious cases, it may cause a train collision or derailment. Therefore, the switch is an electric traction device for railway turnouts, and the reliability of its operation is related to the safety of railway transportation.

[0003] For switch machines, the switch gap (i.e., the switch indication gap) is used to reflect the close contact and position of the switch point rail (center rail) and the stock rail (wing rail). It is an important indicator for monitoring the switch status that directly affects driving safety. Therefore, it is necessary to monitor the switch gap in real time.

[0004] The switch gap image acquisition device is an important component of the existing switch gap monitoring system and is installed on the contact seat inside the switch machine.

[0005] Since switch machines are usually installed in outdoor environments and are exposed to severe weather such as wind, sand, rain and snow, waterproof performance has become an important performance requirement for existing switch machine gap image acquisition devices.

[0006] However, the existing switch gap image acquisition device has weak waterproof performance. After being soaked in rain for a long time, it is easy to cause damage to the internal electronic components, affecting the normal use and service life of the entire device.

[0007] Therefore, there is an urgent need to develop a technology that can solve the above technical problems. Summary of the Invention

[0008] The purpose of the present invention is to provide an image acquisition device and a switch machine in view of the technical defects in the prior art.

[0009] To this end, the present invention provides an image acquisition device, comprising a device base, an upper shell, and a device mounting base plate;

[0010] The device base includes a horizontally distributed fixing plate, a connecting plate and an upper cover plate;

[0011] A vertically distributed connecting plate is fixedly provided on the top rear side of the fixed plate;

[0012] A horizontally distributed upper cover plate is provided on the top rear side of the connecting plate;

[0013] The bottom of the upper cover is provided with an upper shell with an open bottom and a hollow interior;

[0014] The bottom of the upper shell is provided with a device mounting base plate;

[0015] The upper cover plate, the upper shell and the device mounting base plate together form a hollow device mounting housing;

[0016] The device is installed in a housing and is provided with at least one camera module and at least one lighting lamp group;

[0017] The top of the device mounting base is surrounded by a cavity partition boss;

[0018] The inner side of the cavity partition boss has a hollow bottom plate cavity;

[0019] A plurality of support cylinders are arranged in the inner cavity of the bottom plate at intervals;

[0020] The supporting cylinder is fixedly connected to the camera module by screws;

[0021] The device mounting base plate has an opening with at least one window;

[0022] A camera module is provided on the inside of each window;

[0023] Wherein, the upper shell is provided with a sealing clamping boss cavity at a position corresponding to the cavity partition boss on the device mounting base plate;

[0024] The cavity partition boss is sealed and clamped with the sealing clamping boss cavity.

[0025] In addition, the present invention also provides a switch machine, comprising the image acquisition device as described above, and a contact seat of the switch machine;

[0026] An image acquisition device is arranged on the top of the contact seat of the switch machine;

[0027] The image acquisition device is used to acquire images of the designated photographing area downward.

[0028] It can be seen from the technical solution provided by the present invention that, compared with the prior art, the present invention provides an image acquisition device and a switch machine, which are scientifically designed. The image acquisition device has a strong waterproof function and can effectively protect the electronic devices installed thereon (such as camera modules and lighting groups). It can effectively avoid damage to electronic devices caused by rainwater, and ensure that the electrical part of the image acquisition device is not affected by rainwater in normal use, thereby improving the service life of the entire image acquisition device, which has great practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the three-dimensional structure of an image acquisition device provided by the present invention when viewed from the front side;

[0030] Figure 2 A schematic diagram of the three-dimensional structure of an image acquisition device provided by the present invention when viewed from the rear side;

[0031] Figure 3 A schematic diagram of the three-dimensional structure of a device base in an image acquisition device provided by the present invention;

[0032] Figure 4 A schematic diagram of the three-dimensional structure of an image acquisition device provided by the present invention, in which a camera module and an illumination lamp assembly are installed on a device mounting base;

[0033] Figure 5 A schematic diagram of an exploded three-dimensional structure of an image acquisition device provided by the present invention, in which a camera module and an illumination lamp assembly are mounted on a device mounting base;

[0034] Figure 6 A schematic diagram of the three-dimensional structure of a device mounting base plate in an image acquisition device provided by the present invention;

[0035] Figure 7 A schematic diagram of the three-dimensional structure of a lens film in an image acquisition device provided by the present invention;

[0036] Figure 8 A schematic structural diagram of a background area on a lens film in an image acquisition device provided by the present invention;

[0037] Figure 9 A schematic diagram of the three-dimensional structure of an upper shell in an image acquisition device provided by the present invention;

[0038] Figure 10 A schematic diagram of the three-dimensional structure of a connection state between a via-hole sheath mounted on an upper shell and a connecting cable in an image acquisition device provided by the present invention;

[0039] Figure 11A schematic diagram of the three-dimensional structure of an image acquisition device provided by the present invention when installed on a switch machine;

[0040] Figure 12 The present invention provides an image acquisition device, which is a schematic diagram of a partial magnified structure when installed on a switch machine. Figure 1 ;

[0041] Figure 13 The present invention provides an image acquisition device, which is a schematic diagram of a partial magnified structure when installed on a switch machine. Figure 2 ;

[0042] In the figure, 1 is the device base, 2 is the upper shell, 3 is the device mounting base, 4 is the camera module, and 5 is the lighting;

[0043] 6 is a lens film, 601 is a notch groove; 10 is a via cover;

[0044] 11 is a fixing plate, 12 is a through hole of the fixing plate, 13 is a reinforcing rib, 14 is a connecting plate, and 15 is an upper cover plate;

[0045] 16 is a threaded connection hole; 301 is a through hole for mounting the device on the bottom plate;

[0046] 22 is the upper shell docking cavity, 24 is the first cable through hole, 25 is the second cable through hole, and 29 is the sealing clamping boss cavity;

[0047] 30 is the cavity partition boss, 31 is the bottom plate cavity, 33 is the window, and 35 is the supporting cylinder;

[0048] 100 is an image acquisition device, 200 is a contact seat of the switch machine, 300 is a designated photo area; 400 is a display rod.

[0049] 110 is a connecting cable, and 290 is a stepped portion. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0054] See also Figures 1 to 10 , the present invention provides an image acquisition device, comprising a device base 1, an upper shell 2 and a device mounting base plate 3;

[0055] The device base 1 includes a horizontally distributed fixing plate 11, a connecting plate 14 and an upper cover plate 15;

[0056] A vertically distributed connecting plate 14 is fixedly provided on the top rear side of the fixed plate 11;

[0057] A horizontally distributed upper cover plate 15 is provided on the top rear side of the connecting plate 14;

[0058] The bottom of the upper cover plate 15 is provided with an upper shell 2 with an open bottom and a hollow interior (the top of the upper shell 2 is sealed);

[0059] The bottom of the upper shell 2 is provided with a device mounting base plate 3;

[0060] The upper cover plate 15, the upper shell 2 and the device mounting base plate 3 together form a hollow device mounting housing;

[0061] The device is installed in a housing and is provided with at least one camera module 4 and at least one lighting lamp group (not limited to two);

[0062] In the present invention, in a specific implementation, the fixing plate 11 and the upper cover plate 15 are parallel to each other;

[0063] The upper cover plate 15 and the connecting plate 14 are vertically connected to each other.

[0064] In the present invention, in a specific implementation, the center position of the image acquisition area of ​​the camera module 4 corresponds to the center of the detection point to be photographed (i.e., the notch position of the switch machine);

[0065] And / or, the light beams of the lighting lamp group converge on the detection point that needs to be photographed (i.e., the notch position of the switch machine).

[0066] In the present invention, in a specific implementation, the connecting plate 14 is fixedly connected to the top of the fixing plate 11 through a plurality of spaced reinforcing ribs 13 (not limited to two) on one side (ie, the front side) facing the fixing plate 11 .

[0067] It should be noted that the reinforcing ribs 13 are used to strengthen the overall structural strength of the device base 1 .

[0068] In the present invention, in a specific implementation, the fixing plate 11, the connecting plate 14 and the upper cover plate 15 are integrally formed.

[0069] It should be noted that the device base 1 can be formed by bending a single plate, and includes a fixing plate 11 , a connecting plate 14 and an upper cover plate 15 .

[0070] In the present invention, in a specific implementation, the fixing plate 11 and the connecting plate 14 together form a T-shaped structure.

[0071] In the present invention, in a specific implementation, a circular fixing plate through hole 12 is provided at the left and right ends of the fixing plate 11;

[0072] The through hole 12 of the fixing plate is used for fixed connection with the contact seat of the switch machine located outside, so as to realize the installation and fastening of the image acquisition device of the present invention and the switch machine.

[0073] In the present invention, in a specific implementation, the upper cover plate 15 is fixedly connected to the upper shell 2 and the device mounting base plate 3 by a plurality of screws.

[0074] In specific implementation, two threaded connection holes 16 are respectively provided at both ends of the upper cover plate 15;

[0075] The upper shell 2 is provided with an upper shell through hole 201 at a position corresponding to each threaded connection hole 16;

[0076] The device mounting base plate 3 is provided with a device mounting base plate through hole 301 at a position corresponding to each threaded connection 16;

[0077] The screws pass through the corresponding device installation bottom plate through holes 301 and upper shell through holes 201 in sequence, and are then screwed and fixedly connected with the threaded connection holes 16 of the upper cover plate 15 of the device base 1 .

[0078] In the present invention, in a specific implementation, a cavity partition boss 30 is provided around the top of the device mounting base plate 3;

[0079] The inner side of the cavity partition boss 30 has a hollow bottom plate cavity 31;

[0080] In the bottom plate cavity 31, a plurality of spaced support cylinders 35 are provided;

[0081] The support cylinder 35 is fixedly connected to the camera module 4 by screws;

[0082] On the device mounting base plate 3, at least one window 33 is provided in the opening;

[0083] A camera module 4 is correspondingly provided on the inner side of each window 33 .

[0084] The upper shell 2 is provided with a sealing clamping boss cavity 29 at a position corresponding to the cavity partition boss 30 on the device mounting base 3;

[0085] The cavity partition boss 30 is sealed and clamped with the sealing clamping boss cavity 29 .

[0086] In specific implementation, the camera module 4 is welded to the lighting assembly;

[0087] The lighting lamp group includes at least two lighting lamps 5 , which are arranged corresponding to the windows 33 .

[0088] It should be noted that each lighting group includes at least two lighting lamps, which are used to provide auxiliary light sources when the camera module 4 is shooting, thereby enhancing the shooting effect and ensuring the shooting quality.

[0089] In specific implementation, the cavity partition boss 30 on the device mounting base plate 3 is located inside the sealing clamping boss cavity 29;

[0090] In a specific implementation, the camera module 4 and the lighting lamp assembly are located on the inner side of the cavity partition boss 30 and the sealing clamping boss cavity 29 .

[0091] It should be noted that, since the cavity partition boss 30 on the device mounting base plate 3 is sealed and clamped with the sealing clamping boss cavity 29 of the upper shell 2, a sealed space is formed, so that the base plate cavity 31 located on the inner side of the cavity partition boss 30, which is used to install electronic devices such as the camera module 4 and the lighting group, can achieve reliable sealing, prevent external rainwater and dust from entering, ensure waterproof performance, and effectively ensure the normal use and safety of the camera module 4 and the lighting group.

[0092] In specific implementation, the device is mounted on the base plate 3, and the opening is provided with two windows 33;

[0093] Two camera modules 4 are provided on the two windows 33;

[0094] Four supporting columns 35 are provided on the top of the device mounting base plate 3;

[0095] The two camera modules 4 are fixedly connected to the two supporting cylinders 35 via two screws respectively.

[0096] It should be noted that the camera module 4 and the lighting lamp assembly can capture images and illuminate the outside through the window 33.

[0097] In a specific implementation, the entire outer side of the lens of the camera module 4 (ie, the bottom surface) is covered with a transparent lens film 6 .

[0098] In a specific implementation, the edge portion of each lens film 6 is bonded to the bottom surface of the device mounting base plate 3 .

[0099] In a specific implementation, each lens film 6 is respectively covered and adhered to the bottom surface of a window 33 .

[0100] Furthermore, a transparent lens film 6 is pasted on the upper and lower sides of each window 33 .

[0101] Furthermore, the lens film 6 is provided with a notch groove 601 at a position corresponding to each supporting cylinder 35;

[0102] The inner edge of the notch 601 of the lens film 6 is in close contact with the outer wall of the adjacent supporting cylinder 35 .

[0103] Furthermore, a circle of adhesive area 602 is provided around the upper side or the lower side of the lens film 6 .

[0104] In specific implementation, the top of the device mounting base plate 3 is provided with base plate docking grooves 39 on the outer sides of both ends of the cavity partition boss 30;

[0105] The device mounting base plate through hole 301 is located inside the base plate docking groove 39;

[0106] The upper shell 2 is provided with an upper shell docking cavity 22 at a position corresponding to each base plate docking groove 39 on the device mounting base plate 3;

[0107] The upper shell through hole 201 is located inside the upper shell docking cavity 22;

[0108] The upper cover 15 is fixedly connected to the bottom plate docking groove 39 of the device mounting bottom plate 3 and the upper shell docking cavity 22 of the upper shell 2 by a plurality of screws.

[0109] It should be noted that the screws, after sequentially passing through the corresponding device mounting base plate through holes 301 and upper shell through holes 201, are threadedly secured to the threaded connection holes 16 of the upper cover plate 15 of the device base 1. Thus, a secure connection is achieved between the upper cover plate 15 of the device base 1, the device mounting base 3, and the upper shell 2.

[0110] In the present invention, in a specific implementation, the upper shell 2 is turned upside down 180 degrees to form a graphic, such as Figure 8 shown.

[0111] See also Figure 8 , the bottom of the upper shell 2 is provided with a sealing clamping boss cavity 29 and two upper shell docking cavities 22;

[0112] The upper shell 2 is provided with a sealing clamping boss cavity 29 at a position corresponding to the cavity partition boss 30 on the device mounting base 3;

[0113] The cavity partition boss 30 is sealed and clamped with the sealing clamping boss cavity 29 .

[0114] The two upper shell docking cavities 22 are located outside the two ends of the sealing clamping boss cavity 29 .

[0115] In a specific implementation, a circle of stepped portions 290 is provided around the top of the sealing clamping boss cavity 29;

[0116] The stepped portion 290 includes a vertical plane portion and a horizontal plane portion distributed around;

[0117] a vertical plane portion, disposed on the outer side of the top of the horizontal plane portion;

[0118] The stepped portion 290 is engaged with the cavity partition boss 30 .

[0119] It should be noted that the sealing snap-fit ​​boss cavity 29 is sealed and snap-fitted with the cavity partition boss 30 on the device mounting base 3, which can effectively prevent external water and dust from entering the sealing snap-fit ​​boss cavity 29, thereby providing effective waterproof protection for electronic devices such as the camera module 4 and the lighting group installed in the sealing snap-fit ​​boss cavity 29.

[0120] In a specific implementation, the connection cable 110 of the camera module 4 passes through an upper shell docking cavity 22 and is connected to an external image acquisition and storage device (such as a host computer);

[0121] Furthermore, the connection cable 110 of the camera module 4 is sealed and connected to the upper shell docking cavity 22. The specific structural design is as follows: a first cable through hole 24 is provided on the outer side of each upper shell docking cavity 22;

[0122] The sealing clamping boss cavity 2929 is provided with a second cable through hole 25 at a position corresponding to each first cable through hole 24;

[0123] The connection cable 110 of the camera module 4 passes through the second cable through hole 25 and the first cable through hole 24 at the corresponding positions, and is connected to an external image acquisition and storage device (such as a host computer);

[0124] Furthermore, the connection cable 110 of the camera module 4 is sealed and connected to the second cable through hole 25 and the first cable through hole 24 respectively.

[0125] In specific implementation, a through-hole sheath 10 is provided on the inner side of each second cable through-hole 25 and each first cable through-hole 24;

[0126] The outer side of each via sheath 10 is surrounded by an embedding groove 1001;

[0127] Embedding groove 1001, used for embedding into the inner edge of the second cable through hole 25 or the first cable through hole 24;

[0128] The inner through hole of the via sheath 10 is used to pass the connection cable 110 of the camera module 4;

[0129] The outer side surface of the connecting cable 110 is bonded to the inner through hole of the via sheath 10 by means of sealant.

[0130] Furthermore, the diameter of the inner through hole (ie, the through hole) of the via sheath 10 is smaller than the diameter of the connecting cable 110 , that is, the two are interference fit.

[0131] It should be noted that since the diameter of the inner through hole (i.e., the via) of the via sheath 10 is smaller than the diameter of the connecting cable 110, and the outer side surface of the connecting cable 110 is bonded to the inner through hole of the via sheath 10 through sealant, the sealing performance can be effectively guaranteed.

[0132] It should be noted that the spaces of the two upper shell docking cavities 22 and the sealing clamping boss cavity 29 are relatively independent, and the second cable through hole 25 and the first cable through hole 24 serving as the wire outlet holes are both sealed, so as not to affect the sealing performance of the sealing clamping boss cavity 29, and further will not affect the normal operation of electronic devices such as the camera module 4 and the lighting group installed in the sealing clamping boss cavity 29.

[0133] In addition, the image acquisition device provided by the present invention can be applied to a switch machine. Figures 11 to 13 The present invention also provides a switch machine, which includes: Figures 1 to 10 The image acquisition device 100 and the contact seat 200 of the switch machine are shown;

[0134] The image acquisition device 100 is arranged on the top of the contact seat 200 of the switch machine;

[0135] The image acquisition device 100 is used to capture images of the designated photographing area 300 downward;

[0136] In a specific implementation, the designated photographing area 300 is the area directly below the image acquisition device, for example, an image of the position of the notch on the indicating rod of the switch machine, for example Figure 12 The rectangular area shown.

[0137] It should be noted that for the switch on the railway, since the actual position of the notch for the reverse position is blocked by an object, the notch value (i.e., the width of the notch) is indirectly determined by shooting the notch line A and line B on the indicating rod 400 (both are short straight lines distributed longitudinally, and line A and line B are parallel to each other). The notch line A is relatively fixed to the actual positioning notch position 401, and the notch line B is relatively fixed to the actual reverse position notch position 402. The notch value of the actual reverse position is determined based on the notch value represented by the calibrated notch line AB. Here, for the switch, the meaning and function of the switch notch (i.e., the switch indicating notch) are common knowledge in the field of railway technology and will not be elaborated here.

[0138] After verification, the image acquisition device provided by the present invention is a waterproof and sealed device suitable for use in switch machines to capture images indicating gaps in the switch machine. Thanks to its scientific structural design and sealing treatment, the device's fixed mounting structure is isolated from the electrical components, effectively protecting the camera module and lighting assembly, while protecting the electrical components of the image acquisition device from water and dust interference. Furthermore, the image acquisition device's mounting structure is reliable, ensuring that it does not affect the normal operation of the switch machine while enabling accurate and reliable monitoring of gap images.

[0139] To sum up, compared with the prior art, the image acquisition device and switch provided by the present invention are scientifically designed. The image acquisition device has a strong waterproof function, which can effectively protect the electronic devices installed thereon (such as camera modules and lighting groups), effectively avoid damage to electronic devices caused by rain, and ensure that the electrical parts of the image acquisition device are not affected by rain during normal use, thereby improving the service life of the entire image acquisition device, which has great practical significance.

[0140] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An image acquisition device, characterized in that: It comprises a device base (1), an upper shell (2) and a device mounting base plate (3); The device base (1) comprises a horizontally distributed fixing plate (11), a connecting plate (14) and an upper cover plate (15); A vertically distributed connecting plate (14) is fixedly provided on the top rear side of the fixing plate (11); A horizontally distributed upper cover plate (15) is provided on the top rear side of the connecting plate (14); The bottom of the upper cover plate (15) is provided with an upper shell (2) with a bottom opening and a hollow interior; A device mounting base plate (3) is provided at the bottom of the upper shell (2); The upper cover plate (15), the upper shell (2) and the device mounting base plate (3) together surround and form a hollow device mounting housing; At least one camera module (4) and at least one lighting lamp assembly are arranged in the device installation housing; A cavity partition boss (30) is provided around the top of the device mounting base plate (3); The inner side of the cavity partition boss (30) has a hollow bottom plate inner cavity (31); A plurality of spaced support cylinders (35) are provided in the bottom plate inner cavity (31); The supporting cylinder (35) is fixedly connected to the camera module (4) via screws; The upper opening of the device mounting base plate (3) is provided with at least one window (33); A camera module (4) is correspondingly provided on the inner side of each window (33); Wherein, the upper shell (2) is provided with a sealing clamping boss cavity (29) at a position corresponding to the cavity partition boss (30) on the device mounting base plate (3); The cavity partition boss (30) is sealed and clamped with the sealing clamping boss cavity (29); The bottom of the upper shell (2) is provided with a sealing clamping boss cavity (29) and two upper shell docking cavities (22); The two upper shell docking cavities (22) are located outside the two ends of the sealing clamping boss cavity (29); A circle of stepped portions (290) is provided around the top of the sealing clamping boss cavity (29); The stepped portion (290) includes a vertical plane portion and a horizontal plane portion that are distributed around; The vertical plane portion is arranged on the outer side of the top of the horizontal plane portion; The stepped portion (290) is engaged with the cavity partition boss (30); The connection cables (110) of the camera modules (4) are respectively passed through an upper shell docking cavity (22) and connected to an external image acquisition and storage device; Furthermore, the connection cable (110) of the camera module (4) is sealed and connected to the upper shell docking cavity (22). The specific structural design is as follows: A first cable through hole (24) is provided on the outer side of each upper shell docking cavity (22); The sealing clamping boss cavity (29) is provided with a second cable through hole (25) at a position corresponding to each first cable through hole (24); The connection cable (110) of the camera module (4) passes through the second cable through hole (25) and the first cable through hole (24) at corresponding positions in sequence, and is connected to an external image acquisition and storage device; The connection cable (110) of the camera module (4) is sealedly connected to the second cable through hole (25) and the first cable through hole (24), respectively.

2. The image acquisition device according to claim 1, wherein: The fixing plate (11) and the upper cover plate (15) are parallel to each other; and / or, the upper cover plate (15) and the connecting plate (14) are vertically connected to each other; and / or, the connecting plate (14) is fixedly connected to the top of the fixing plate (11) on one side facing the fixing plate (11) via a plurality of spaced-apart reinforcing ribs (13); And / or, the fixing plate (11), the connecting plate (14) and the upper cover plate (15) are integrally formed; And / or, a circular fixing plate through hole (12) is provided at each of the left and right ends of the fixing plate (11); The fixing plate through hole (12) is used for fixed connection with the switch machine contact seat located outside; and / or, the center position of the image acquisition area of ​​the camera module (4) corresponds to the center of the detection point to be photographed; And / or, the light beams of the lighting lamp group converge on the detection point that needs to be photographed.

3. The image acquisition device according to claim 1, wherein: The upper cover plate (15) is fixedly connected to the upper shell (2) and the device mounting base plate (3) via a plurality of screws; Two threaded connection holes (16) are respectively provided at both ends of the upper cover plate (15); The upper shell (2) is provided with an upper shell through hole (201) at a position corresponding to each threaded connection hole (16); The device mounting base plate (3) is provided with a device mounting base plate through hole (301) at a position corresponding to each threaded connection (16); The screws sequentially pass through the corresponding device mounting base plate through holes (301) and upper shell through holes (201) and are then threadedly fixedly connected to the threaded connection holes (16) of the upper cover plate (15) of the device base (1).

4. The image acquisition device according to claim 1, wherein: The camera module (4) is welded to the lighting assembly; The lighting lamp assembly includes at least two lighting lamps (5) arranged corresponding to the windows (33); and / or, the cavity partition boss (30) on the device mounting base plate (3) is located inside the sealing clamping boss cavity (29); And / or, the camera module (4) and the lighting lamp assembly are located inside the cavity partition boss (30) and the sealing clamping boss cavity (29); And / or, the upper opening of the device mounting base plate (3) is provided with two windows (33); Two camera modules (4) are provided on the two windows (33); Four supporting columns (35) are provided on the top of the device mounting base plate (3); The two camera modules (4) are fixedly connected to the two supporting cylinders (35) via two screws respectively; And / or, all the lens outer sides of the camera module (4) are covered with a transparent lens film (6); The edge portion of each lens film (6) is bonded to the bottom surface of the device mounting base plate (3); And / or, a transparent lens film (6) is respectively adhered to the upper and lower sides of each window (33); The lens film (6) is provided with a notch groove (601) at a position corresponding to each supporting cylinder (35); The inner edge of the notch groove (601) of the lens film (6) is in close contact with the outer side wall of the adjacent supporting cylinder (35).

5. The image acquisition device according to claim 1, wherein: The top of the device mounting base plate (3) is provided with base plate docking grooves (39) on the outer sides of both ends of the cavity partition boss (30); The upper shell (2) is provided with an upper shell docking cavity (22) at a position corresponding to each base plate docking groove (39) on the device mounting base plate (3); The upper cover plate (15) is fixedly connected to the bottom plate docking groove (39) of the device mounting bottom plate (3) and the upper shell docking cavity (22) of the upper shell (2) through a plurality of screws.

6. The image acquisition device according to claim 1, wherein: A through-hole sheath (10) is provided on the inner side of each second cable through hole (25) and each first cable through hole (24); An embedded groove (1001) is provided around the outer side of each through-hole sheath (10); The embedding groove (1001) is used to embed the inner edge of the second cable through hole (25) or the first cable through hole (24); The inner through hole of the through-hole sheath (10) is used to pass through the connection cable (110) of the camera module (4); The outer side surface of the connecting cable (110) is bonded to the inner through hole of the through-hole sheath (10) by means of a sealant; The diameter of the inner through hole of the through hole sheath (10) is smaller than the diameter of the connecting cable (110).

7. A switch machine, characterized in that: It comprises the image acquisition device according to any one of claims 1 to 6, and a contact seat (200) of a switch machine; The image acquisition device (100) is arranged on the top of the contact seat (200) of the switch machine; The image acquisition device (100) is used to downwardly acquire images of a designated photographing area.

Images