Multi-channel synchronous data acquisition device

Abstract

The utility model relates to a multi-channel synchronous data acquisition device, and aims to solve the problem that most of the conventional synchronous data acquisition devices for a double-channel shaft vibration protection meter directly connect lines through plugging of wiring terminals, so that the wiring terminals which are directly plugged cannot be directly connected in a long-term use process; the device comprises a shell, a wiring terminal is installed at the rear end of the shell, a plurality of wiring holes are formed in the wiring terminal, limiting mechanisms are arranged in the wiring holes, each limiting mechanism comprises a horn, one side of a large opening of each horn is fixedly connected with a connecting ring, and the other side of the large opening of each horn is fixedly connected with the connecting ring. An elastic rubber ring is fixedly connected to the inner cavity of the small opening of the horn; according to the utility model, the connecting line is prevented from being loosened or being separated from the wiring terminal to influence data acquisition due to traction to the connecting line, and meanwhile, a large amount of dust is prevented from entering the connecting part of the wiring hole and the connecting line to cause short circuit or damage.

Description

Technical Field

[0001] The utility model relates to the field of synchronous data acquisition, in particular to a multi-channel synchronous data acquisition device. Background Art

[0002] The "dual-channel shaft vibration protection meter" is mainly used in various rotating machinery, such as fans, compressors, motors, pumps, gearboxes, turbines, etc. Vibration monitoring can detect and issue alarms, protection and other information early, so that the machine can operate safely and ensure the service life of the equipment.

[0003] Most of the existing dual-channel shaft vibration protection meter synchronous data acquisition devices directly connect the lines through terminal blocks. Therefore, during long-term use, the directly plugged terminal blocks will inevitably pull the lines, causing the connecting wires to loosen or detach, affecting data collection. Therefore, a new technical solution needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a multi-channel synchronous data acquisition device to solve the technical problem that most of the current dual-channel shaft vibration protection table synchronous data acquisition devices directly connect the lines through wiring terminals, so that the directly plugged wiring terminals will inevitably pull the lines during long-term use, causing the connecting wires to loosen or detach, affecting data collection.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a multi-channel synchronous data acquisition device is designed, including a shell, a wiring terminal is installed at the rear end of the shell, a plurality of wiring holes are opened on the wiring terminal, and a limiting mechanism is arranged in each of the plurality of wiring holes, the limiting mechanism includes a horn, a connecting ring is fixedly connected to one side of the large opening of the horn, and an elastic rubber ring is fixedly connected to the inner cavity of the small opening of the horn; adjusting chambers are opened on both sides of the inner cavity of the connecting ring, connecting plates are slidably connected in the two adjusting chambers, and springs are fixedly connected between the two connecting plates and one side of the inner cavity of the two adjusting chambers, respectively, a pressing rod and a limiting rod are slidably penetrated on both sides of the connecting ring, and the same end of the pressing rod and the limiting rod is fixedly connected to the connecting plate, limiting holes are opened on both sides of the inner cavity of the wiring hole, and a sealing gasket is fixedly connected to the outer side of the connecting ring.

[0006] Preferably, the outer dimensions of the limiting rod are matched with the inner dimensions of the limiting hole.

[0007] Preferably, the spring is always in a compressed state, and the elastic force of the spring is greater than the friction force of the connecting plate in the regulating chamber.

[0008] Preferably, the distance that the connecting plate moves in the adjusting chamber is equal to the length of the pressing rod and the limiting rod placed outside the connecting ring.

[0009] Preferably, the thickness of the connecting ring is greater than the depth of the wiring hole.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model combines structures such as a wiring terminal, a wiring hole, a limiting hole, a loudspeaker, a pressing rod, a limiting rod, a sealing pad, an elastic rubber ring, a connecting plate, a spring and an adjusting bin. When the connecting wire is connected to the wiring terminal, the connecting wire is first inserted from the end of the loudspeaker with a small opening, and then the connecting wire is connected to the corresponding wiring hole on the wiring terminal. Then, the limiting rod is contracted by squeezing the pressing rod in cooperation with the spring and the connecting plate, and then the connecting ring is inserted into the wiring hole. Then, the pressing rod is released in cooperation with the elastic force of the spring to insert the limiting rod into the limiting hole to limit the loudspeaker, so that the elastic rubber ring is tightly connected to the outside of the connecting wire, so that there is a certain friction between the connecting wire and the loudspeaker, so as to avoid the connection wire being pulled to cause the connection wire to loosen or detach from the wiring terminal to affect data collection. At the same time, the connection ring cooperates with the sealing pad to increase the sealing of the connection between the connecting wire and the wiring hole, so as to avoid a large amount of dust entering the connection between the wiring hole and the connecting wire to cause a short circuit or damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the connection structure between the horn and the connection ring of the utility model;

[0014] Figure 3 This is a cross-sectional view of the connecting ring of the utility model;

[0015] Figure 4 It is an enlarged view of point A of the utility model;

[0016] Figure 5 This is a multi-channel data acquisition block diagram of the utility model;

[0017] Figure 6 It is a cross-sectional view of the wiring terminal of the present utility model.

[0018] In the figure: 1. Shell; 11. Original signal buffer output circuit; 12. A / D conversion circuit; 13. Central processing unit; 14. Analog signal preprocessing circuit; 15. Display module; 2. Wiring terminal; 21. Wiring hole; 3. Limiting mechanism; 31. Speaker; 32. Elastic rubber ring; 33. Connecting ring; 34. Sealing gasket; 4. Pressing rod; 41. Limiting rod; 42. Adjusting chamber; 43. Connecting plate; 44. Spring. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Embodiment 1: A multi-channel synchronous data acquisition device, see Figures 1 to 6 , including a shell 1, a wiring terminal 2 is installed at the rear end of the shell 1, a plurality of wiring holes 21 are provided on the wiring terminal 2, and a limiting mechanism 3 is arranged in each of the plurality of wiring holes 21, and the limiting mechanism 3 includes a horn 31, a connecting ring 33 is fixedly connected to one side of the large opening of the horn 31, and an elastic rubber ring 32 is fixedly connected to the inner cavity of the small opening of the horn 31; adjusting chambers 42 are provided on both sides of the inner cavity of the connecting ring 33, and connecting plates 43 are slidably connected in the two adjusting chambers 42, and springs 44 are fixedly connected between the two connecting plates 43 and one side of the inner cavity of the two adjusting chambers 42, respectively, and a pressing rod 4 and a limiting rod 41 are slidably penetrated on both sides of the connecting ring 33, and the same ends of the pressing rod 4 and the limiting rod 41 are fixedly connected to the connecting plate 43, and limiting holes are provided on both sides of the inner cavity of the wiring hole 21, and a sealing gasket 34 is fixedly connected to the outer side of the connecting ring 33. When the connecting wire is connected When on the wiring terminal 2, first insert the connecting wire from the end with the smaller opening of the horn 31, and then connect the connecting wire to the corresponding wiring hole 21 on the wiring terminal 2, and then shrink the limiting rod 41 by squeezing the pressing rod 4 in cooperation with the spring 44 and the connecting plate 43, and then insert the connecting ring 33 into the wiring hole 21, and then release the pressing rod 4 and cooperate with the elastic force of the spring 44 to insert the limiting rod 41 into the limiting hole to limit the horn 31, so that the elastic rubber ring 32 is tightly connected to the outside of the connecting wire, so that there is a certain friction between the connecting wire and the horn 31, thereby avoiding pulling the connecting wire to cause the connecting wire to loosen or detach from the wiring terminal 2 to affect data collection. At the same time, the connecting ring 33 cooperates with the sealing gasket 34 to increase the sealing of the connection between the connecting wire and the wiring hole 21, thereby avoiding a large amount of dust entering the connection between the wiring hole 21 and the connecting wire to cause a short circuit or damage.

[0021] For details, see Figure 5The housing 1 includes a central processing unit 13, a display module 15 and two signal modules. The signal module includes an original signal buffer output circuit 11, an analog signal preprocessing circuit 14 and an A / D conversion circuit 12. The input end of the analog signal preprocessing circuit 14 is provided with a plurality of independent sensor signal input terminals. The input end of the A / D conversion circuit 12 is connected to an output end of the analog signal preprocessing circuit 14. The input end of the original signal buffer output circuit 11 is connected to another output end of the analog signal preprocessing circuit 14. The output end of the original signal buffer output circuit 11 is connected to the original signal output port. The output end of the A / D conversion circuit 12 is connected to an input end of the central processing unit 13. The output end of the central processing unit 13 is connected to the input end of the display module 15. Through the two signal modules, the data of the vibration working condition of the equipment can be measured at multiple locations simultaneously for collection, thereby improving the accuracy of the vibration working condition of the equipment.

[0022] For further information, see Figure 4 and Figure 6 The outer dimensions of the limiting rod 41 are matched with the inner dimensions of the limiting hole, so as to ensure the stability of the limiting rod 41 inserted into the limiting hole, thereby improving the stability of the speaker 31 connected to the wiring hole 21.

[0023] It is worth noting that see Figure 4 The spring 44 is always in a compressed state, and the elastic force of the spring 44 is greater than the friction force of the connecting plate 43 in the adjusting chamber 42, which is used to ensure that the spring 44 always has elastic force, and at the same time ensure that the elastic force of the spring 44 can push the connecting plate 43 to move and drive the limiting rod 41 to insert into the limiting hole to limit the horn 31.

[0024] It is worth noting that see Figure 4 The distance that the connecting plate 43 moves in the adjusting chamber 42 and the length of the pressing rod 4 and the limiting rod 41 placed outside the connecting ring 33 are used to ensure that the limiting rod 41 can be fully retracted, thereby preventing the limiting rod 41 from being placed outside the connecting ring 33 and affecting the connection of the connecting ring 33 in the wiring hole 21.

[0025] It is worth noting that see Figure 2 and Figure 6 The thickness of the connecting ring 33 is greater than the depth of the wiring hole 21, which is used to ensure that the pressing rod 4 is placed on the outside of the wiring terminal 2 when the connecting ring 33 is connected to the wiring hole 21, thereby facilitating personnel to squeeze the pressing rod 4 to disassemble and assemble the horn 31.

[0026] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0027] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A multi-channel synchronous data acquisition device, comprising a housing (1), characterized in that: A connection terminal (2) is installed at the rear end of the housing (1), a plurality of connection holes (21) are provided on the connection terminal (2), a limiting mechanism (3) is provided in each of the plurality of connection holes (21), the limiting mechanism (3) comprises a horn (31), a connecting ring (33) is fixedly connected to one side of the large opening of the horn (31), and an elastic rubber ring (32) is fixedly connected to the inner cavity of the small opening of the horn (31); Adjustment chambers (42) are provided on both sides of the inner cavity of the connecting ring (33), and connecting plates (43) are slidably connected in the two adjusting chambers (42). Springs (44) are fixedly connected between the two connecting plates (43) and one side of the inner cavity of the two adjusting chambers (42), respectively. A pressing rod (4) and a limiting rod (41) are slidably penetrated on both sides of the connecting ring (33), and the same ends of the pressing rod (4) and the limiting rod (41) are fixedly connected to the connecting plate (43). Limiting holes are provided on both sides of the inner cavity of the wiring hole (21), and a sealing gasket (34) is fixedly connected to the outer side of the connecting ring (33).

2. A multi-channel synchronous data acquisition device as claimed in claim 1, characterized in that: The outer dimensions of the limiting rod (41) are adapted to the inner dimensions of the limiting hole.

3. A multi-channel synchronous data acquisition device as claimed in claim 1, characterized in that: The spring (44) is always in a compressed state, and the elastic force of the spring (44) is greater than the friction force of the connecting plate (43) in the regulating chamber (42).

4. A multi-channel synchronous data acquisition device as claimed in claim 1, characterized in that: The distance that the connecting plate (43) moves in the regulating chamber (42) is equal to the length of the pressing rod (4) and the limiting rod (41) placed outside the connecting ring (33).

5. A multi-channel synchronous data acquisition device as claimed in claim 1, characterized in that: The thickness of the connecting ring (33) is greater than the depth of the wiring hole (21).

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