An adjustable support stand for facilitating microwave testing of cable assemblies
By using a feedback system that combines pneumatic and mechanical linkages, the problems of cable entanglement and connector damage caused by cable sag or rigid fixation during microwave testing are solved. This enables adaptive adjustment of cable clamping force, ensuring the stability and accuracy of the test.
Patent Information
- Application Number
- CN202522113497.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
In microwave testing, cables are prone to tangling or damaging connectors when suspended or rigidly fixed. Existing support devices cannot effectively adjust the clamping force, leading to unstable testing.
The system employs a pneumatic and mechanical linkage feedback system, which combines a plug assembly, a cable threading mechanism, and a rotary adjustment fixing component to achieve adaptive control of the cable clamping force, thus avoiding problems caused by cable sag or rigid fixing.
It achieves stable clamping of cables during microwave testing, preventing tangling and connector damage, and improving the reliability and accuracy of testing.
Smart Images
Figure CN224683783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable assembly technology, specifically an adjustable support frame that facilitates the assembly of microwave test cables. Background Technology
[0002] Microwave testing is the performance testing and verification of signals, devices and systems in the microwave frequency band. It uses specialized instruments to measure key parameters such as power, frequency, gain, and VSWR to determine whether microwave components or systems meet design requirements and ensure their normal operation in fields such as communication, radar, and remote sensing. The accuracy and reliability of microwave testing largely depend on high-quality cable assembly. Before assembly, the right cable must be selected according to the test frequency band and power requirements. At the same time, the connectors at both ends of the cable must be carefully checked to see if the interface type matches the instrument and the device under test, so as to ensure that the microwave signal can be transmitted between the test instrument and the device under test with the lowest loss and distortion. When cables are connected to the tester, if they are left to hang, they are prone to tangling and will pull on the interface under their own weight. However, if they are fixed with rigid clamps, the stress will be concentrated directly on the root of the connector if there is an accidental pull, which can easily cause damage. Therefore, an adjustable support frame that facilitates the assembly of microwave test cables is proposed to address the above problems. Utility Model Content
[0003] The purpose of this invention is to provide an adjustable support frame that facilitates the assembly of microwave test cables, thereby solving the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: An adjustable support frame for easy assembly of microwave test cables includes a sleeve, a plug assembly inserted in the sleeve, a threading mechanism inserted at the upper end of the plug assembly, a rotating adjustment fixing component threaded to the inner side of the sleeve, a support base fixedly connected to the outer side of the rotating adjustment fixing component, the plug assembly including a support column, the upper end of the support column having an inter-column groove, a first steel ring welded to the outer side of the support column, an elastic telescopic corrugated tube bonded to the upper end of the first steel ring, a second steel ring bonded to the upper end of the elastic telescopic corrugated tube, a retaining ring welded to the outer side of the support column, a limit plate fixedly connected to the bottom end of the support column, the threading mechanism including a threading tube, a rubber airbag embedded in the inner side of the threading tube, flared tubes welded to both ends of the threading tube, a connecting tube fixedly connected to the outer side of the threading tube, a connecting frame welded to the bottom end of the connecting tube, and a connecting spring passing through the inner side of the connecting frame.
[0005] As a further optimization of this utility model, the outer side of the connecting pipe is in close contact with the inner side of the inter-column groove, the inner side of the inter-column groove is connected to the inner side of the connecting pipe, the second steel ring is welded and fixed to the outer side of the connecting pipe, and the second steel ring and the first steel ring are parallel to each other.
[0006] As a further optimization of this utility model, the following features are provided: multiple retaining rings are provided, and the multiple retaining rings are evenly and equidistantly distributed on the outside of the support column. A gap is provided between every two adjacent retaining rings. The outside of the retaining rings is in close contact with the inside of the sleeve. The diameter of the limiting disc is equal to the diameter of the sleeve.
[0007] As a further optimization of this utility model, the following features are provided: the opening diameter of the flared tube is twice the diameter of the threading tube; a cavity is provided on the inner side of the threading tube; the inner side of the rubber airbag is connected to the cavity on the inner side of the threading tube; and the cavity on the inner side of the threading tube is connected to the interior of the connecting tube.
[0008] As a further optimization of this utility model, the connecting pipe is slidably disposed in the intercolumn groove, the central axis of the connecting pipe and the central axis of the connecting spring are on the same straight line, and the bottom end of the connecting spring is fixedly connected to a support column.
[0009] As a further optimization of this utility model, the rotary adjustment fixing component includes a screw nut, which is disposed on the outside of the sleeve. A screw rod is fixedly connected to one side of the screw nut, and a rubber rod head is fixedly connected to one end of the screw rod by adhesive bonding.
[0010] As a further optimization of this utility model, the length of the thread on the outer side of the screw is twice the thickness of the sleeve, and one end of the rubber rod head is arc-shaped and abuts against the outer side of the support column.
[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention introduces a feedback system that combines pneumatic and mechanical linkage to achieve adaptive and precise control of cable clamping force. It breaks through the single mode of clamping and locking the cable by the traditional support and fixing device, and specifically solves the drawbacks of cable assembly suspension or rigid fixation in microwave testing. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall exploded structure of this utility model; Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the insert assembly of this utility model; Figure 5 This is a cross-sectional structural diagram of the threading mechanism of this utility model; Figure 6 This is a schematic diagram of the rotating adjustment fixing component of this utility model.
[0013] In the diagram: 1. Sleeve; 2. Insertion column assembly; 21. Support column; 22. Inter-column groove; 23. First steel ring; 24. Elastic telescopic corrugated pipe; 25. Second steel ring; 26. Clamping ring; 27. Limiting plate; 3. Threading mechanism; 31. Threading tube; 32. Rubber airbag; 33. Flared tube; 34. Connecting tube; 35. Connecting frame; 36. Connecting spring; 4. Rotary adjustment and fixing parts; 41. Tightening nut; 42. Screw; 43. Rubber rod head; 5. Support base frame. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0016] Please see Figures 1-6 This utility model provides a technical solution: An adjustable support frame for easy assembly of microwave test cables includes a sleeve 1, a plug assembly 2 inserted into the sleeve 1, a wire threading mechanism 3 inserted at the upper end of the plug assembly 2, a rotating adjustment fixing component 4 threaded inside the sleeve 1, and a support base 5 fixedly connected to the outside of the rotating adjustment fixing component 4. The plug assembly 2 includes a support column 21, an inter-column groove 22 formed at the upper end of the support column 21, a first steel ring 23 welded to the outside of the support column 21, and an elastic telescopic joint bonded to the upper end of the first steel ring 23. The corrugated pipe 24 has a second steel ring 25 bonded to its upper end. A retaining ring 26 is welded to the outside of the support column 21. A limit plate 27 is fixedly connected to the bottom of the support column 21. The threading mechanism 3 includes a threading pipe 31. A rubber airbag 32 is embedded in the inner side of the threading pipe 31. Flared pipes 33 are welded to both ends of the threading pipe 31. A connecting pipe 34 is fixedly connected to the outside of the threading pipe 31. A connecting frame 35 is welded to the bottom of the connecting pipe 34. A connecting spring 36 passes through the inner side of the connecting frame 35.
[0017] As a further implementation of this solution, the outer side of the connecting pipe 34 is tightly attached to the inner side of the inter-column groove 22, and the inner side of the inter-column groove 22 is connected to the inner side of the connecting pipe 34. The second steel ring 25 is welded and fixed to the outer side of the connecting pipe 34. The second steel ring 25 and the first steel ring 23 are parallel to each other. The design of the outer side of the connecting pipe 34 being tightly attached to the inner side of the inter-column groove 22 can prevent the air inside the connecting pipe 34 and the air inside the inter-column groove 22 from leaking from the connection between the two. The design of the second steel ring 25 and the first steel ring 23 being parallel to each other can facilitate the expansion and contraction of the elastic expansion and contraction of the bellows 24. The second steel ring 25 and the first steel ring 23 are connected by the elastic expansion and contraction bellows 24, which can provide multiple guarantees for the sealing between the connecting pipe 34 and the inter-column groove 22. As a further implementation of this solution, multiple retaining rings 26 are provided, which are evenly and equidistantly distributed on the outside of the support column 21. There is a gap between every two adjacent retaining rings 26. The outside of the retaining rings 26 is in close contact with the inside of the sleeve 1. The diameter of the limiting disc 27 is equal to the diameter of the sleeve 1. The design of the retaining rings 26 being in close contact with the inside of the sleeve 1 makes the support column 21 inserted into the sleeve 1 more stable. The gap between every two adjacent retaining rings 26 facilitates the insertion of the rubber rod head 43 and its support column 21. As a further implementation of this solution, the opening diameter of the flared tube 33 is twice the diameter of the threading tube 31. A cavity is opened on the inner side of the threading tube 31. The inner side of the rubber airbag 32 is connected to the cavity opened on the inner side of the threading tube 31. The cavity opened on the inner side of the threading tube 31 is connected to the inside of the connecting tube 34. The design that the opening diameter of the flared tube 33 is twice the diameter of the threading tube 31 facilitates the cable to pass through the threading tube 31 through the flared tube 33. The design that the inner side of the rubber airbag 32 is connected to the cavity opened on the inner side of the threading tube 31 and the cavity opened on the inner side of the threading tube 31 is connected to the inside of the connecting tube 34 allows the volume of the rubber airbag 32 to change with the change of the air pressure inside the threading tube 31 and the connecting tube 34, thereby exerting different clamping forces on the wrapped cable. As a further implementation of this solution, the connecting pipe 34 is slidably disposed in the intercolumn groove 22. The central axis of the connecting pipe 34 and the central axis of the connecting spring 36 are on the same straight line. The bottom end of the connecting spring 36 is fixedly connected to the support column 21. The design that the central axis of the connecting pipe 34 and the central axis of the connecting spring 36 are on the same straight line ensures that the elastic force of the connecting spring 36 is applied entirely along the sliding direction of the connecting pipe 34, without generating a lateral component force, thus avoiding additional squeezing friction between the connecting pipe 34 and the inner wall of the intercolumn groove 22. As a further implementation of this solution, the rotating adjustment fixing component 4 includes a screw nut 41, which is located on the outside of the sleeve 1. A screw 42 is fixedly connected to one side of the screw nut 41. A rubber rod head 43 is fixedly connected to one end of the screw nut 42 by adhesive bonding. The length of the thread on the outside of the screw nut 42 is twice the thickness of the sleeve 1. One end of the rubber rod head 43 is arc-shaped and abuts against the outside of the support column 21. The design that the length of the thread on the outside of the screw nut 42 is twice the thickness of the sleeve 1 avoids the limitation of "either not being able to tighten or not being able to unscrew" due to the thread being too short. The arc-shaped design of one end of the rubber rod head 43 prevents scratching the surface of the support column 21 or damaging the retaining ring 26 fixed on the outside of the support column 21 when it abuts against the outside of the support column 21.
[0018] Working process: When using the device, first pull the threading mechanism 3 upward. At this time, the space formed inside the connecting pipe 34 and the inter-column groove 22 will increase. Since the cavity formed inside the connecting pipe 34 and the threading pipe 31 is connected, the negative pressure formed inside the connecting pipe 34 will draw air out of the threading pipe 31, causing the air inside the rubber airbag 32 connected to the threading pipe 31 to also flow into the connecting pipe 34, thus reducing the volume of the rubber airbag 32. At this time, the cable is inserted into the flared tube 33 at one end of the threading pipe 31, and after passing through the threading pipe 31, it is pulled out from the flared tube 33 at the other end of the threading pipe 31. Then, release the threading mechanism 3. At this time, the connecting spring 36 restores its deformation and exerts a pulling force on the connecting frame 35, causing the connecting frame 35 to drive the connecting pipe 34 and the threading pipe 31 fixed to the connecting pipe 34 to move downward. The connecting pipe 34 and the cavity formed inside the inter-column groove 22... The space formed will shrink again, and the air will return to the rubber airbag 32, causing the rubber airbag 32 to expand and wrap around the cable. Throughout the process, since the second steel ring 25 and the first steel ring 23 are respectively welded to the connecting pipe 34 and the support column 21, and the second steel ring 25 and the first steel ring 23 are connected by the elastic expansion corrugated pipe 24, this provides multiple guarantees for the sealing between the connecting pipe 34 and the column groove 22, preventing the device from failing due to air leakage. When the cable is fixed by the threading pipe 31 and the rubber airbag 32, if it is pulled and shakes, it will squeeze the rubber airbag 32 and also drive the threading pipe 31 to move. When the threading pipe 31 moves, the contents of the rubber airbag 32 will change, thereby reducing the clamping force on the cable and preventing the threading mechanism 3 from pulling the cable excessively, which could damage the connection between the cable and the tester. When the cable is connected to the tester, since the cable and the conduit 31 are in a relatively stationary state, the rotating adjustment fixing part 4 can be unscrewed from the sleeve 1 to adjust the relative position of the support column 21 in the sleeve 1. Then, the screw nut 41 is rotated to drive the screw 42 into the sleeve 1, so that the rubber rod head 43 is re-inserted between the two adjacent retaining rings 26 and abuts against the support column 21 to prevent the support column 21 from sliding again. At this time, the relative position of the support column 21 and the connecting pipe 34 changes, and the space formed by the column groove 22 and the connecting pipe 34 will also change, thereby adjusting the clamping force of the rubber airbag 32 on the cable.
[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An adjustable support frame for easy assembly of microwave test cables, comprising a sleeve (1), characterized in that: The sleeve (1) is provided with a plug assembly (2), and the upper end of the plug assembly (2) is provided with a threading mechanism (3). The inner side of the sleeve (1) is threaded with a rotating adjustment fixing part (4), and the outer side of the rotating adjustment fixing part (4) is fixedly connected with a support base (5). The insert assembly (2) includes a support column (21), the upper end of the support column (21) is provided with an inter-column groove (22), a first steel ring (23) is welded to the outside of the support column (21), an elastic telescopic corrugated pipe (24) is bonded to the upper end of the first steel ring (23), a second steel ring (25) is bonded to the upper end of the elastic telescopic corrugated pipe (24), a retaining ring (26) is welded to the outside of the support column (21), and a limit plate (27) is fixedly connected to the bottom end of the support column (21). The threading mechanism (3) includes a threading tube (31), a rubber airbag (32) is embedded in the inner side of the threading tube (31), flared tubes (33) are welded to both ends of the threading tube (31), a connecting tube (34) is fixedly connected to the outer side of the threading tube (31), a connecting frame (35) is welded to the bottom end of the connecting tube (34), and a connecting spring (36) passes through the inner side of the connecting frame (35).
2. The adjustable support frame for facilitating the assembly of microwave test cables according to claim 1, characterized in that: The outer side of the connecting pipe (34) is in close contact with the inner side of the intercolumn groove (22), and the inner side of the intercolumn groove (22) is connected to the inner side of the connecting pipe (34). The second steel ring (25) is welded and fixed to the outer side of the connecting pipe (34), and the second steel ring (25) and the first steel ring (23) are parallel to each other.
3. The adjustable support frame for facilitating the assembly of microwave test cables according to claim 1, characterized in that: Multiple retaining rings (26) are provided, and the multiple retaining rings (26) are evenly and equidistantly distributed on the outside of the support column (21). There is a gap between each two adjacent retaining rings (26). The outside of the retaining rings (26) is in close contact with the inside of the sleeve (1). The diameter of the limiting plate (27) is equal to the diameter of the sleeve (1).
4. The adjustable support frame for facilitating the assembly of microwave test cables according to claim 1, characterized in that: The diameter of the flared tube (33) is twice the diameter of the threading tube (31). A cavity is provided inside the threading tube (31). The inner side of the rubber airbag (32) is connected to the cavity inside the threading tube (31). The cavity inside the threading tube (31) is connected to the inside of the connecting tube (34).
5. An adjustable support frame for facilitating the assembly of microwave test cables according to claim 1, characterized in that: The connecting pipe (34) is slidably disposed in the intercolumn groove (22). The central axis of the connecting pipe (34) and the central axis of the connecting spring (36) are on the same straight line. The bottom end of the connecting spring (36) is fixedly connected to a support column (21).
6. An adjustable support frame for facilitating the assembly of microwave test cables according to claim 1, characterized in that: The rotating adjustment fixing component (4) includes a screw nut (41), which is located on the outside of the sleeve (1). A screw rod (42) is fixedly connected to one side of the screw nut (41), and a rubber rod head (43) is fixedly connected to one end of the screw rod (42) by adhesive bonding.
7. An adjustable support frame for facilitating the assembly of microwave test cables according to claim 6, characterized in that: The length of the thread on the outside of the screw (42) is twice the thickness of the sleeve (1), and one end of the rubber rod head (43) is arc-shaped and abuts against the outside of the support column (21).