Signal acquisition cable with high characteristic impedance

Abstract

The utility model relates to the technical field of electric wires, and discloses a signal acquisition cable with high characteristic impedance, which comprises an outer protective sleeve in bilateral symmetry, an inner protective sleeve is fixedly connected inside the outer protective sleeve, an air bag cylinder is fixedly connected inside the inner protective sleeve, a cable body is slidably connected inside the air bag cylinder, and the cable body is fixedly connected with the inner protective sleeve. A sleeve plate is fixedly connected to the interior of the outer protective sleeve, a first sliding rod is slidably connected to the interior of the sleeve plate, a first clamping plate is fixedly connected to one end of the first sliding rod, a pressing plate is fixedly connected to the other end of the first sliding rod, and the outer wall of the first sliding rod is sleeved with a first spring. According to the utility model, the surface of the cable body can be protected through the air bag cylinder and the inner protective sleeve, and meanwhile, the pressing plate is pressed to drive the clamping plate to be clamped in the limiting plate, so that the clamping plate I can fix the cable body, and the problem that most of existing signal acquisition cables are protected only through basic outer-layer insulating materials, so that the cable body cannot be fixed is solved. And the cable body cannot be prevented from being folded and worn.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wires, in particular to a signal acquisition cable with high characteristic impedance. Background Art

[0002] Signal acquisition cables are used to transmit high-frequency signals and precision data, and are widely used in communications, measurement, medical equipment, and electronic test instruments. These cables can effectively reduce signal attenuation and interference, improve the accuracy and stability of data transmission, and are particularly suitable for environments that require high-precision signal transmission, such as laboratory testing, remote communications, and medical diagnostic equipment.

[0003] Existing signal acquisition cables improve the characteristic impedance of cables by optimizing cable structure and materials, reducing capacitance and inductance effects. The internal conductor is usually made of high-quality copper, and the outside is covered with multiple layers of insulation materials and shielding layers to minimize external electromagnetic interference and signal reflection. This design can not only effectively transmit high-frequency signals, but also maintain the integrity and accuracy of the signal, and meet the needs of high-precision signal acquisition in different environments.

[0004] However, existing signal acquisition cables often lack adequate protection for the cable body during use. Most of these cables are only protected by basic outer insulation materials and fail to effectively resist external physical damage and environmental factors. Especially in harsh environments, such as high temperature, high humidity, strong electromagnetic interference, etc., the cable body is easily worn, bent or broken, resulting in reduced stability and accuracy of signal transmission. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a signal acquisition cable with high characteristic impedance, aiming to improve the problem that most of the existing signal acquisition cables are only protected by basic outer insulation materials and cannot prevent the cable body from folding and wear.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a signal acquisition cable with high characteristic impedance, comprising a left-right symmetrical outer protective sleeve, the inner part of the outer protective sleeve is fixedly connected to the inner protective sleeve, the inner part of the inner protective sleeve is fixedly connected to the airbag tube, the inner part of the airbag tube is slidably connected to the cable body, the inner part of the outer protective sleeve is fixedly connected to the sleeve plate, the inner part of the sleeve plate is slidably connected to a sliding rod 1, one end of the sliding rod 1 is fixedly connected to a clamping plate, and the other end of the sliding rod 1 is fixedly connected to a pressure plate. The outer wall of the sliding rod 1 is sleeved with a spring 1, the outer wall of the pressure plate is fixedly connected to a clamping plate, the inner part of the sleeve plate is slidably connected to a sliding rod 2, the outer wall of the sliding rod 2 is fixedly connected to a limiting plate, the outer wall of the clamping plate is slidably connected to the outer wall of the limiting plate, a spring 2 is arranged inside the sleeve plate, the inner part of the inner protective sleeve is fixedly connected to a clamping plate, and a positioning component is arranged on the outer wall of the outer protective sleeve on the right side, and the positioning component is used for accurate connection between the two outer protective sleeves.

[0007] Furthermore, the positioning assembly includes a positioning plate, an outer wall of the positioning plate is fixedly connected to an outer wall of the outer protective sleeve on the right side, and an outer wall of the positioning plate is slidably connected to the inside of the outer protective sleeve on the left side.

[0008] Furthermore, one end of the spring one is fixedly connected to the outer wall of the sleeve plate, and the other end of the spring one is fixedly connected to the outer wall of the pressure plate; one end of the spring two is fixedly connected to the inside of the sleeve plate, and the other end of the spring two is fixedly connected to the outer wall of the pressure plate.

[0009] Furthermore, the outer wall of the outer protective sleeve is provided with two fixing rings, and the two fixing rings are fitted together.

[0010] Furthermore, the outer wall of the fixing ring is fixedly connected to a connecting frame, and the outer wall of the connecting frame is rotatably connected to a connecting seat.

[0011] Furthermore, a connecting plate is fixedly connected to the outer wall of the fixing ring, and a fixing bolt is connected to the inner thread of the connecting plate.

[0012] Furthermore, the internal thread of the fixing ring is connected with a movable bolt, and the outer wall of the movable bolt is fixedly connected with a knob.

[0013] Furthermore, a sealing gasket is rotatably connected to the outer wall of the movable bolt, and the sealing gasket is fitted with the outer protective sleeve.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, firstly, the surface of the cable body can be protected by the airbag tube and the inner protective sleeve. At the same time, the pressure plate is pressed to drive the card plate to be stuck inside the limit plate, so that the clamping plate can fix the cable body, thereby limiting the position of the outer protective sleeve, thereby achieving the effect of protecting the cable connection. It solves the problem that most of the existing signal acquisition cables are only protected by the basic outer insulating material and cannot prevent the cable body from folding and wear, improves the safety of the cable, and extends the service life of the cable.

[0016] 2. In the utility model, two fixing rings are put between two outer protective sleeves, and then the fixing bolts are rotated to fix the connecting plate. At the same time, the knob is rotated to drive the sealing gasket to rotate, so that the sealing gasket can clamp and fix the two outer protective sleeves, thereby achieving the effect of assembling two cables, solving the problem that most of the existing signal acquisition cables are not convenient for multiple assembly, and improving the practicality of the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a signal acquisition cable with high characteristic impedance proposed by the utility model;

[0018] Figure 2 This is a cross-sectional view of the internal structure of an outer protective sheath of a signal acquisition cable with high characteristic impedance proposed by the utility model;

[0019] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic structural diagram of the fixing ring portion of a signal acquisition cable with high characteristic impedance proposed by the utility model.

[0021] Legend:

[0022] 1. Outer protective sleeve; 2. Inner protective sleeve; 3. Airbag tube; 4. Cable body; 5. Sleeve plate; 6. Sliding rod 1; 7. Clamping plate 1; 8. Pressure plate; 9. Spring 1; 10. Clamping plate; 11. Sliding rod 2; 12. Limiting plate; 13. Spring 2; 14. Positioning plate; 15. Fixing ring; 16. Connecting seat; 17. Connecting frame; 18. Connecting plate; 19. Fixing bolt; 20. Movable bolt; 21. Knob; 22. Sealing pad; 23. Clamping plate 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-Figure 3 , the utility model provides an embodiment: a high characteristic impedance signal acquisition cable, including a bilaterally symmetrical outer protective sleeve 1, the inner protective sleeve 2 is fixedly connected to the inner protective sleeve 2, the inner protective sleeve 2 is fixedly connected to the air bag tube 3, the air bag tube 3 is slidably connected to the cable body 4, the outer protective sleeve 1 is fixedly connected to the inner plate 5, the inner plate 5 is slidably connected to a slide bar 6, one end of the slide bar 6 is fixedly connected to a clamping plate 7, the other end of the slide bar 6 is fixedly connected to a pressure plate 8, the outer wall of the slide bar 6 is sleeved with a spring 9, the outer wall of the pressure plate 8 is fixedly connected to a clamping plate 10, the inner sliding surface of the sleeve plate 5 A slide bar 11 is connected, the outer wall of the slide bar 11 is fixedly connected to the limit plate 12, the outer wall of the clamping plate 10 is slidably connected to the outer wall of the limit plate 12, a spring 13 is arranged inside the sleeve plate 5, a clamping plate 23 is fixedly connected inside the inner protective sleeve 2, and a positioning component is arranged on the outer wall of the right outer protective sleeve 1, and the positioning component is used for accurate connection between the two outer protective sleeves 1; one end of the spring 19 is fixedly connected to the outer wall of the sleeve plate 5, and the other end of the spring 19 is fixedly connected to the outer wall of the pressure plate 8, one end of the spring 13 is fixedly connected to the inside of the sleeve plate 5, and the other end of the spring 13 is fixedly connected to the outer wall of the pressure plate 8;

[0025] Specifically, when the position of the outer protective sleeve 1 needs to be fixed, the outer protective sleeve 1, the inner protective sleeve 2 and the airbag tube 3 are used to fully protect the cable body 4. Once the sliding position of the outer protective sleeve 1 reaches the appropriate position, the pressure plate 8 can be pressed, which will drive the slide bar 16 to push the clamping plate 17, so that the clamping plate 17 cooperates with the clamping plate 23, thereby effectively fixing the cable body 4 and the outer protective sleeve 1. This not only ensures the stability of the cable position, but also enhances its durability and reliability in various working environments. At the same time, the movement of the pressure plate 8 will also drive the card plate 10 to slide on the surface of the limit plate 12. The sliding process of the card plate 10 will compress the spring 2 13 until the clamping plate 17 completely clamps the cable body 4. The limit plate 12 directly limits the card plate 10, ensuring that the position of the clamping plate 7 is fixed and the cable connection is fully protected. This whole set of mechanisms not only improves the safety of the cable, but also effectively extends the service life of the cable, thereby reducing maintenance costs and improving work efficiency.

[0026] Reference Figure 1 , Figure 2 and Figure 4The positioning assembly includes a positioning plate 14, the outer wall of the positioning plate 14 is fixedly connected to the outer wall of the right outer protective sleeve 1, and the outer wall of the positioning plate 14 is slidably connected to the inside of the left outer protective sleeve 1; the outer wall of the outer protective sleeve 1 is provided with two fixing rings 15, and the two fixing rings 15 are fitted together; the outer wall of the fixing ring 15 is fixedly connected to a connecting frame 17, and the outer wall of the connecting frame 17 is rotatably connected to a connecting seat 16; the outer wall of the fixing ring 15 is fixedly connected to a connecting plate 18, and the internal thread of the connecting plate 18 is connected to a fixing bolt 19; the internal thread of the fixing ring 15 is connected to a movable bolt 20, and the outer wall of the movable bolt 20 is fixedly connected to a knob 21; the outer wall of the movable bolt 20 is rotatably connected to a sealing gasket 22, and the sealing gasket 22 is fitted with the outer protective sleeve 1;

[0027] Specifically, when the two cable bodies 4 need to be assembled, the fixing ring 15 is put on the outer walls of the two outer protective sleeves 1 to ensure that the fixing ring 15 is tightly fitted with the outer protective sleeves 1, and then the two connecting plates 18 are connected by rotating the fixing bolt 19, so as to preliminarily fix the position of the fixing ring 15, which ensures the basic stability and position accuracy during the assembly process. Subsequently, the knob 21 is turned to drive the movable bolt 20 to rotate on the ring part of the fixing ring 15, which not only further strengthens the position of the fixing ring 15, but also gradually clamps the two outer protective sleeves 1 by pushing the sealing gasket 22 to slide inward. The sliding process of the sealing gasket 22 is until the two outer protective sleeves 1 are completely and evenly clamped, ensuring the stability and safety of the cable body 4 after assembly. This not only simplifies the installation process of the cable, but also improves its reliability and practicality in actual use, so that the cable can better withstand tension and environmental pressure in various working environments, thereby extending its service life and improving work efficiency.

[0028] Working principle: when it is necessary to fix the position of the outer protective sleeve 1, the cable body 4 can be fully protected by the outer protective sleeve 1, the inner protective sleeve 2 and the airbag tube 3. At the same time, when the outer protective sleeve 1 slides to a suitable position, the pressing plate 8 is pressed to drive the slide bar 6 to push the clamping plate 7, so that the clamping plate 7 can cooperate with the clamping plate 23, thereby fixing the cable body 4 and the outer protective sleeve 1. On the other hand, the pressing plate 8 moves and drives the card plate 10 to slide on the surface of the limit plate 12, so that the card plate 10 can push the limit plate 12, thereby compressing the spring 2 13, until the clamping plate 7 completely clamps and fixes the cable body 4. At this time, the limit plate The straight surface of 12 will limit the card plate 10, thereby achieving the effect of protecting the cable connection, improving the safety of the cable, and extending the service life of the cable. When the two cable bodies 4 need to be assembled, the fixing ring 15 is sleeved on the outer walls of the two outer protective sleeves 1, and the fixing bolts 19 are rotated to connect the two connecting plates 18, so as to preliminarily fix the fixing ring 15, and then the knob 21 is rotated to drive the movable bolt 20 to rotate on the temporal part of the fixing ring 15, and at the same time, the sealing gasket 22 is pushed inward to slide until the sealing gasket 22 completely clamps the two outer protective sleeves 1, thereby achieving the effect of assembling the two cables and improving the practicability of the cables.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A signal acquisition cable with high characteristic impedance, comprising a bilaterally symmetrical outer protective sheath (1), characterized in that: The inner part of the outer protective sleeve (1) is fixedly connected to the inner part of the inner protective sleeve (2), the inner part of the inner protective sleeve (2) is fixedly connected to the airbag tube (3), the inner part of the airbag tube (3) is slidably connected to the cable body (4), the inner part of the outer protective sleeve (1) is fixedly connected to the sleeve plate (5), the inner part of the sleeve plate (5) is slidably connected to a sliding rod (6), one end of the sliding rod (6) is fixedly connected to a clamping plate (7), the other end of the sliding rod (6) is fixedly connected to a pressure plate (8), the outer wall of the sliding rod (6) is provided with a spring (9), the pressure plate The outer wall of the sleeve (8) is fixedly connected with a clamping plate (10), the interior of the sleeve (5) is slidably connected with a sliding rod (11), the outer wall of the sliding rod (11) is fixedly connected with a limiting plate (12), the outer wall of the clamping plate (10) is slidably connected to the outer wall of the limiting plate (12), the sleeve (5) is provided with a spring (13), the interior of the inner protective sleeve (2) is fixedly connected with a clamping plate (23), and the outer wall of the outer protective sleeve (1) on the right side is provided with a positioning component, and the positioning component is used for accurate connection between the two outer protective sleeves (1).

2. A signal acquisition cable with high characteristic impedance according to claim 1, characterized in that: The positioning assembly comprises a positioning plate (14), the outer wall of which is fixedly connected to the outer wall of the outer protective sleeve (1) on the right side, and the outer wall of which is slidably connected to the inside of the outer protective sleeve (1) on the left side.

3. The signal acquisition cable with high characteristic impedance according to claim 1, characterized in that: One end of the spring one (9) is fixedly connected to the outer wall of the sleeve plate (5), and the other end of the spring one (9) is fixedly connected to the outer wall of the pressure plate (8); one end of the spring two (13) is fixedly connected to the inside of the sleeve plate (5), and the other end of the spring two (13) is fixedly connected to the outer wall of the pressure plate (8).

4. The signal acquisition cable with high characteristic impedance according to claim 2, characterized in that: The outer wall of the outer protective sleeve (1) is provided with two fixing rings (15), and the two fixing rings (15) are fitted together.

5. The signal acquisition cable with high characteristic impedance according to claim 4, characterized in that: The outer wall of the fixing ring (15) is fixedly connected to a connecting frame (17), and the outer wall of the connecting frame (17) is rotatably connected to a connecting seat (16).

6. The signal acquisition cable with high characteristic impedance according to claim 5, characterized in that: The outer wall of the fixing ring (15) is fixedly connected with a connecting plate (18), and the inner thread of the connecting plate (18) is connected with a fixing bolt (19).

7. The signal acquisition cable with high characteristic impedance according to claim 6, characterized in that: The internal thread of the fixing ring (15) is connected to a movable bolt (20), and the outer wall of the movable bolt (20) is fixedly connected to a knob (21).

8. The signal acquisition cable with high characteristic impedance according to claim 7, characterized in that: The outer wall of the movable bolt (20) is rotatably connected to a sealing gasket (22), and the sealing gasket (22) is in close contact with the outer protective sleeve (1).

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