Multi-channel signal acquisition and preprocessing equipment

Abstract

This utility model discloses a multi-channel signal acquisition and preprocessing device, specifically relating to the technical field of signal acquisition equipment. It includes a device housing with heat dissipation grooves on both sides. A signal acquisition terminal is mounted inside the housing, and multiple signal connectors are located at the rear of the terminal, fixedly extending through the rear of the housing. A protective cover is fixedly connected to the rear of the housing. From bottom to top, a sealing cover, a cable support plate, and a connecting plate are sequentially arranged on the end side of the protective cover. Multiple cable fixing plates are installed through the connecting plate. Cable grooves one and two are respectively formed on the opposite surfaces of the cable fixing plates and the cable support plates. Cable grooves one and two are used to secure the signal lines of the signal connectors. A flip-top connection structure is provided on the cable fixing plates and the protective cover. This utility model solves the technical problem that exposing the input wiring of the signal acquisition equipment to air reduces the waterproof and moisture-proof performance of the equipment components.

Description

Technical Field

[0001] This utility model relates to the field of signal acquisition equipment technology, and more specifically, to a multi-channel signal acquisition and preprocessing equipment. Background Technology

[0002] A channel signal acquisition and processing device is a device used to collect, record, and store various types of data. It can acquire information such as physical quantities, environmental parameters, and signals from sensors, instruments, or other data sources, and convert them into digital form for subsequent processing and analysis. The basic principle of this type of device is to receive analog signals from external sensors or instruments through input channels and convert them into digital signals. The conversion method is usually accomplished by an analog-to-digital converter (ADC).

[0003] For example, utility model patent publication number CN220874856U discloses a multi-channel analog signal isolation and acquisition device. This application describes a multi-channel analog signal isolation and acquisition device including a housing, an extension plate fixedly connected to the side of the housing, multiple rotating shafts fixedly connected to the side of the extension plate, movable plates slidably connected to adjacent rotating shafts, and a horizontal fixing block fixedly connected to the side of the movable plate. The surface of the horizontal fixing block has holes, allowing fixing screws to be removed from the horizontal fixing block when not in use, thus detaching the screws from the extension plate. The movable plate is then rotated around the rotating shafts to a vertical position, and the fixing screws are inserted into the vertical fixing block, which is then connected to a fixed base plate. Using this device protects the equipment, preventing components from being exposed to air and corroding when not in use. It also prevents personnel contact, protects equipment safety, extends equipment life, saves operating costs, and facilitates use by staff.

[0004] In the aforementioned patent, the inventor believes that although the patent can seal off the signal connector when it is not in use, the connection between the two will inevitably be exposed to the air when the signal connector is connected to the signal line. This will reduce the waterproof and moisture-proof performance of the signal acquisition equipment components and affect their durability. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the problem that the waterproof and moisture-proof performance of signal acquisition device components is reduced when the input wiring of the signal acquisition device is exposed to air.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-channel signal acquisition and preprocessing device, including a device housing, heat dissipation grooves on both sides of the device housing, a signal acquisition terminal mounted inside the device housing, and multiple signal connectors at the tail of the signal acquisition terminal, the signal connectors being fixedly inserted through the tail of the device housing;

[0007] A protective cover is fixedly connected to the rear of the device housing. From bottom to top, a sealing cover plate, a cable support plate, and a connecting plate are arranged on the end side of the protective cover. Multiple cable fixing plates are arranged through the connecting plate. The opposite surfaces of the cable fixing plate and the cable support plate are respectively provided with cable groove one and cable groove two. Cable groove one and cable groove two are used to press and fix the signal lines of the signal connector. A flip-top connection structure is provided on the cable fixing plate and the protective cover.

[0008] In a preferred embodiment, a pad is fixedly connected to the inner bottom of the device housing, the signal acquisition terminal is fixedly connected to the pad, and a pair of water baffles are fixedly connected to the inner top of the device housing, with the pair of water baffles disposed on both sides of the signal acquisition terminal.

[0009] In a preferred embodiment, a ventilation gap is provided between one end of the baffle plate and the inner bottom of the equipment housing.

[0010] In a preferred embodiment, the bottom end of the sealing cover is rotatably connected to the protective cover via a hinge, the top end of the sealing cover is pressed against the bottom end of the cable support plate, and both the cable support plate and the connecting plate are fixedly connected to the protective cover.

[0011] In a preferred embodiment, the sealing cover is provided with a locking structure, the locking structure including a rotating rod rotatably connected to the sealing cover, one end of the rotating rod being fixedly connected to a pull rod, the pull rod being disposed on the outside of the sealing cover, and the other end of the rotating rod being fixedly connected to a stop block, the stop block being fixedly connected to an anti-slip pad, the anti-slip pad being slidably connected to the inner surface of the cable tray.

[0012] In a preferred embodiment, both sides of the cable fixing plate are fixedly connected with flanges, and both sides of the cable fixing plate are fixedly connected with sealing gaskets. A convex groove is provided on the connecting plate, and the cable fixing plate is tightly inserted into the convex groove through the sealing gasket. The opposing surfaces of the cable support plate and the cable fixing plate are provided with matching inclined surfaces.

[0013] In a preferred embodiment, sealing rings are fixedly connected to both the first and second wire grooves.

[0014] In a preferred embodiment, a pull ring is fixedly connected to the outer surface of the wire fixing plate.

[0015] In a preferred embodiment, the flip-cover connection structure includes a support fixedly connected to the top of the protective cover, a torsion spring shaft rotatably connected to the inner side of the support, a rotating block fixedly connected to the torsion spring shaft, and the rotating block fixedly connected to the top of the wire-fixing plate.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This multi-channel signal acquisition and preprocessing equipment uses a flip-top connection structure to achieve a flexible flip-top effect on the cable tray. Because the cable tray and the cable tray are respectively provided with cable groove one and cable groove two for clamping the signal wires of the signal connector, the cable groove one and cable groove two are designed to clamp the signal wires. This allows the signal connector connection to have waterproof sealing performance. The flip-top cable clamping is convenient and has a good sealing effect. Furthermore, because multiple independently set cable trays cooperate with the cable tray with multiple cable groove two, multiple signal wires can be independently sealed.

[0018] 2. This multi-channel signal acquisition and preprocessing equipment features a sealing cover with a locking structure. The sealing cover is easy to open and close and provides a good seal. By flexibly opening the sealing cover, it is easy to plug and unplug the signal cable at the signal connector. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Side view;

[0022] Figure 3 This utility model Figure 1 A sectional view;

[0023] Figure 4 This is a schematic diagram of the structure of the protective cover of this utility model;

[0024] Figure 5 This is a structural schematic diagram of the cable tray, connecting plate, and cable fixing plate of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the wire fixing plate of this utility model;

[0026] Figure 7 This is a schematic diagram of the sealing cover plate of this utility model.

[0027] The attached diagram is labeled as follows: 1. Equipment casing; 2. Heat dissipation trough; 3. Signal acquisition terminal; 31. Pad; 4. Signal connector; 5. Protective cover; 6. Sealing cover; 7. Cable support plate; 8. Connecting plate; 9. Cable fixing plate; 91. Edge retainer; 10. Cable trough one; 11. Cable trough two; 12. Support; 121. Torsion spring shaft; 122. Rotating block; 13. Water baffle; 14. Sealing gasket; 15. Sealing ring; 16. Pull ring; 17. Rotating rod; 171. Pull rod; 172. Stop block; 173. Anti-slip pad. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] See also Figures 1-7 This utility model provides a multi-channel signal acquisition and preprocessing device, including a device housing 1, with heat dissipation grooves 2 on both sides of the device housing 1.

[0030] The device housing 1 can serve as a protective housing for multi-channel signal acquisition and preprocessing equipment. The heat dissipation slot 2 can promote air circulation inside the device housing 1 to facilitate heat dissipation.

[0031] In this embodiment: a signal acquisition terminal 3 is installed inside the device housing 1, and multiple signal connectors 4 are provided at the tail of the signal acquisition terminal 3. The signal connectors 4 are fixedly inserted through the tail of the device housing 1.

[0032] The signal acquisition terminal 3 is model TRINV306U-7660. It is suitable for acquiring vibration, noise, shock and other signals with a large number of channels or a high sampling rate. It features a 16-bit high-speed AD chip, multi-channel parallel and continuous large capacity design, stable and reliable performance, and supports USB2.0 high-speed interface. It can be connected to DASP series software. The signal connector 4 can be used to connect signal lines for vibration, noise, shock and other signal acquisition to the signal acquisition terminal 3.

[0033] In this embodiment: a pad 31 is fixedly connected to the inner bottom of the device housing 1, and the signal acquisition terminal 3 is fixedly connected to the pad 31.

[0034] The pad 31 can be used to raise the setting position of the signal acquisition terminal 3, which can reduce the risk of the signal acquisition terminal 3 being submerged in water.

[0035] In this embodiment: a pair of water baffles 13 are fixedly connected to the inner top of the equipment housing 1. The pair of water baffles 13 are arranged on both sides of the signal acquisition terminal 3. A ventilation gap is reserved between one end of the water baffle 13 and the inner bottom of the equipment housing 1.

[0036] The advantage of setting up the water baffle 13 is that when water enters during the ventilation process of the heat dissipation slot 2, the water baffle 13 can act as a barrier to the signal acquisition terminal 3. Because the signal acquisition terminal 3 is raised by the pad 31, the possibility of short circuit damage to the signal acquisition terminal 3 due to water immersion can be reduced. The ventilation gap between the water baffle 13 and the equipment housing 1 ensures that the water baffle 13 is waterproof while the ventilation gap can work with the heat dissipation slot 2 to provide a heat dissipation channel for the signal acquisition terminal 3.

[0037] In this embodiment, a protective cover 5 is fixedly connected to the tail of the device housing 1.

[0038] The protective cover 5 has a double-opening structure, and its position can provide a protective enclosure for the signal connector 4 on the signal acquisition terminal 3.

[0039] In this embodiment: The protective cover 5 is provided with a cable support plate 7 and a connecting plate 8 from bottom to top on its end side. The cable support plate 7 and the connecting plate 8 are fixedly connected to the protective cover 5. Multiple cable fixing plates 9 are provided through the connecting plate 8.

[0040] The cable support plate 7 is used to provide cable support for the signal cable connected to the signal connector 4. The cable fixing plate 9 can be used to press and seal the signal cable supported on the cable support plate 7. The connecting plate 8 can be used to seal the edge of the cable fixing plate 9.

[0041] In this embodiment: both sides of the wire fixing plate 9 are fixedly connected with a retaining edge 91, both sides of the wire fixing plate 9 are fixedly connected with a sealing gasket 14, a convex groove is opened on the connecting plate 8, the wire fixing plate 9 is tightly inserted into the convex groove through the sealing gasket 14, and the opposite surfaces of the wire support plate 7 and the wire fixing plate 9 are provided with matching inclined surfaces.

[0042] The convex groove allows the cable holder 9 to move in and be limited, while also providing a range for the insertion or removal of the signal line. At this time, the cable holder 9 can act on the signal input line for compression. The sealing gasket 14 ensures that the periphery of the cable holder 9 is sealed, thus achieving a waterproof effect when the cable holder 9 enters the convex groove. The baffle 91 serves to cover the sealing gasket 14, providing an aesthetically pleasing appearance. The matching bevel allows the cable support plate 7 and the cable holder 9 to be in a closed state after the cable holder 9 enters the convex groove, further improving waterproofness. In this application, the bottom of the connecting plate 8 has the same bevel as the bottom of the cable holder 9.

[0043] In this embodiment, sealing rings 15 are fixedly connected to both the first groove 10 and the second groove 11.

[0044] When the signal connector 4 is installed with the signal wire in the wire groove 10 and the wire groove 11, the sealing ring 15 can be pressed tightly against the outer surface of the signal wire. The sealing ring 15 seals and compacts the signal wire, which can prevent the risk of water leakage at this position and thus ensure the waterproof performance of the signal connector 4.

[0045] In this embodiment, a pull ring 16 is fixedly connected to the outer surface of the wire fixing plate 9.

[0046] The pull ring 16 allows for easy hand-operated control of the wire fixing plate 9 on the connecting plate 8.

[0047] In this embodiment: a flip-top connection structure is provided on the wire fixing plate 9 and the protective cover 5. The flip-top connection structure includes a support 12, which is fixedly connected to the top of the protective cover 5. A torsion spring shaft 121 is rotatably connected to the inner side of the support 12. A rotating block 122 is fixedly connected to the torsion spring shaft 121 and is fixedly connected to the top of the wire fixing plate 9.

[0048] The torsion spring shaft 121 consists of a shaft rotatably connected to the support 12 and a torsion spring sleeved on the shaft. The two ends of the torsion spring can be fixed to the shaft and the support 12. In use, the user can pull the pull ring 16, which can pull the cable fixing plate 9 to rotate around the axis of the torsion spring shaft 121. At this time, the rotating block 122 can drive the shaft to rotate. The rotating shaft can deform the torsion spring and store force. At this time, the signal wire connecting the signal connector 4 can be inserted through the convex groove and correspond to the second groove 11. Then the cable fixing plate 9 can be released. The springback of the deformed torsion spring can cause the shaft to drive the cable fixing plate 9 to return to the convex groove position through the rotating block 122. At this time, the user can apply a certain pressure to promote the cable fixing plate 9 to enter the convex groove. In this way, the first groove 10 can act on the top of the outer surface of the signal wire. The pair of sealing rings 15 set at the top and bottom act on the signal wire, thus providing the sealing of the signal wire position and satisfying the waterproofing of the connection of the signal connector 4.

[0049] It is worth noting that since the signal connector 4 may use signal cables with different wire diameters, and the tail of the signal acquisition terminal 3 may include not only the signal connector 4, but also a power connector, which will use a power cable, the dimensions of the cable tray 10 and cable tray 21 in this application can be set in various ways to meet the fixed requirements of the input wire diameter of the signal acquisition terminal 3.

[0050] In this embodiment: a sealing cover 6 is provided on the end side of the protective cover 5. The bottom end of the sealing cover 6 is rotatably connected to the protective cover 5 by a hinge, and the top end of the sealing cover 6 is pressed against the bottom end of the cable tray 7.

[0051] The sealing method of the sealing cover 6 can be achieved by providing a sealing material of the same type as the sealing gasket 14 around the inner periphery of the sealing cover 6. In this way, the sealing cover 6 can be attached to the protective cover 5 to increase the sealing performance. The sealing cover 6 can be used to seal the opening at one end of the protective cover 5 except for the connecting plate 8 and the wire support plate 7. The sealing cover 6, which is hinged, can be easily rotated and opened. In this application, the opposite ends of the sealing cover 6 and the wire support plate 7 are also provided with bevels that match those provided on the wire support plate 7 and the wire fixing plate 9. In this way, when the sealing cover 6 is covered on the protective cover 5, the sealing cover 6 is pressed against the wire support plate 7, which can improve the sealing performance of the connection.

[0052] In this embodiment: a locking structure is provided on the sealing cover plate 6. The locking structure includes a rotating rod 17, which is rotatably connected to the sealing cover plate 6. One end of the rotating rod 17 is fixedly connected to a pull rod 171, which is located on the outside of the sealing cover plate 6. The other end of the rotating rod 17 is fixedly connected to a stop block 172, and an anti-slip pad 173 is fixedly connected to the stop block 172. The anti-slip pad 173 is slidably connected to the inner surface of the cable tray 7.

[0053] The anti-slip pad 173 has a high friction damping effect. By rotating the lever 171, the lever 17 can drive the stop block 172 to rotate. The rotation of the stop block 172 allows the anti-slip pad 173 to slide against the inner side of the cable tray 7 until the anti-slip pad 173 is disengaged from the cable tray 7. At this time, the sealing cover 6 can be opened. The plug of the signal line entering from the convex groove can be connected and cooperate with the signal connector 4 through the open position of the sealing cover 6. Subsequently, the lever 17 is rotated in the opposite direction to allow the anti-slip pad 173 to rub against the inner side of the cable tray 7, thus closing the sealing cover 6. This provides a sealing effect for the signal connector 4 inside the protective cover 5, preventing the signal connector 4 and the signal line connection from being exposed to the air and reducing the waterproof and moisture-proof performance of the signal acquisition equipment components. Therefore, it effectively improves the durability of the signal acquisition equipment.

Claims

1. Multi-channel signal acquisition pre-processing device, comprising a device housing (1), characterized in that: The device housing (1) has heat dissipation slots (2) on both sides. A signal acquisition terminal (3) is installed inside the device housing (1). The signal acquisition terminal (3) has multiple signal connectors (4) at its tail. The signal connectors (4) are fixedly inserted through the tail of the device housing (1). The rear of the device housing (1) is fixedly connected to a protective cover (5). The protective cover (5) is provided with a sealing cover plate (6), a cable support plate (7) and a connecting plate (8) from bottom to top on the end side. Multiple cable fixing plates (9) are provided through the connecting plate (8). The cable fixing plate (9) and the cable support plate (7) are respectively provided with a cable groove first (10) and a cable groove second (11). The cable groove first (10) and the cable groove second (11) are used to press and fix the signal line of the signal connector (4). The cable fixing plate (9) and the protective cover (5) are provided with a flip-cover connection structure.

2. The multi-channel signal acquisition and preprocessing device according to claim 1, characterized in that: A pad (31) is fixedly connected to the bottom inner side of the device housing (1), and the signal acquisition terminal (3) is fixedly connected to the pad (31). A pair of water baffles (13) are fixedly connected to the top inner side of the device housing (1), and the pair of water baffles (13) are arranged on both sides of the signal acquisition terminal (3).

3. The multi-channel signal acquisition and preprocessing device according to claim 2, characterized in that: A ventilation gap is reserved between one end of the baffle plate (13) and the inner bottom of the equipment shell (1).

4. The multi-channel signal acquisition and preprocessing device according to claim 1, characterized in that: The bottom end of the sealing cover (6) is rotatably connected to the protective cover (5) by a hinge, and the top end of the sealing cover (6) is pressed against the bottom end of the cable tray (7). The cable tray (7) and the connecting plate (8) are both fixedly connected to the protective cover (5).

5. The multi-channel signal acquisition and preprocessing device according to claim 4, characterized in that: The sealing cover (6) is provided with a locking structure, which includes a rotating rod (17). The rotating rod (17) is rotatably connected to the sealing cover (6). One end of the rotating rod (17) is fixedly connected to a pull rod (171). The pull rod (171) is located on the outside of the sealing cover (6). The other end of the rotating rod (17) is fixedly connected to a stop block (172). An anti-slip pad (173) is fixedly connected to the stop block (172). The anti-slip pad (173) is slidably connected to the inner surface of the cable tray (7).

6. The multi-channel signal acquisition and preprocessing device according to claim 1, characterized in that: Both sides of the wire fixing plate (9) are fixedly connected with a retaining edge (91), and both sides of the wire fixing plate (9) are fixedly connected with a sealing gasket (14). A convex groove is provided on the connecting plate (8), and the wire fixing plate (9) is tightly inserted into the convex groove through the sealing gasket (14). The opposite surfaces of the wire support plate (7) and the wire fixing plate (9) are provided with matching inclined surfaces.

7. The multi-channel signal acquisition and preprocessing device according to claim 1, characterized in that: Both the first (10) and the second (11) of the wire groove are fixedly connected with sealing rings (15).

8. The multi-channel signal acquisition and preprocessing device according to claim 1, characterized in that: A pull ring (16) is fixedly connected to the outer surface of the wire fixing plate (9).

9. The multi-channel signal acquisition and preprocessing device according to claim 1, characterized in that: The flip-cover connection structure includes a support (12), which is fixedly connected to the top of the protective cover (5). A torsion spring shaft (121) is rotatably connected to the inner side of the support (12). A rotating block (122) is fixedly connected to the torsion spring shaft (121), and the rotating block (122) is fixedly connected to the top of the wire plate (9).

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