A three-way vibration test device for radio frequency coaxial cable connector assemblies

Abstract

The present invention discloses a three-way vibration test device for a radio frequency coaxial cable connector assembly, the three-way vibration test device includes a vertical test unit and a horizontal test unit, wherein the vertical test unit includes a mounting fixture, a vertical bracket and a vibration device, the mounting fixture is arranged below the vertical bracket, and the mounting fixture is fixed on the vibration device; a first fixing portion pair is vertically arranged on the mounting fixture, which is used to clamp and fix the connectors at both ends when the cable is vertically tested; the connectors at both ends of the cable with a connector to be tested are respectively connected to the first fixing portion pair, and the cables are hung on the top frame of the vertical bracket to form an inverted U-shaped structure. Through the structural design of the device of the present invention, it is possible to perform vibration tests on the cable with a connector to be tested along the cable axis direction and in multiple directions within the cable cross section.

Description

Technical Field

[0001] The invention belongs to the field of detection of radio frequency coaxial cable connector components, and in particular relates to a three-way vibration test device for radio frequency coaxial cable connector components. Background Art

[0002] At present, RF coaxial cable connector components mainly include RF coaxial connectors, RF coaxial jumpers, RF coaxial cluster components, etc., which have been widely used in the field of mobile communication network construction. RF coaxial cable connector components mainly play the role of connecting cables, connecting devices, or connecting cables to devices. Since most application scenarios are outdoors, there are certain requirements for the fixity, vibration resistance, and wind resistance between connections. At present, national standards and industry standards use vibration tests to evaluate the above performance.

[0003] In the current national standards and industry standards, only technical indicators are proposed for vibration testing: vibration frequency (such as 10Hz~55Hz, 10Hz~500Hz, 10Hz~2000Hz), vibration amplitude (such as 100m / s 2 ~200m / s 2 ), vibration time (such as 30 minutes) and vibration direction (three mutually perpendicular directions: axial X direction, tangential Y direction, vertical Z direction), and stipulate that the test sample is directly installed on the table of the vibration table or installed through a fixture, and only the two ends of the connector are fixed. This raises questions such as what kind of fixture to use for installation and fixing, how to ensure the free fluctuation of the vibration amplitude of the entire test sample during vibration, and whether the length of the sample placement device can be adjusted according to the length of the test sample.

[0004] The RF coaxial cable connector assembly mainly plays a connecting role, and the fixation performance between the connector and the cable is tested through vibration testing. The existing technical solutions usually directly fix the test sample as a whole on the vibration table, and the vibration occurs on the entire test sample. It does not strictly abide by the "vibration occurs between the connector and the cable", which greatly reduces the test requirements and deviates from the purpose of the test. Therefore, there is an urgent need for a test device that can ensure vibration between the cable and the connector when the cable is in the natural straightening process. Summary of the invention

[0005] The purpose of the present invention is to provide a three-way vibration test device for a radio frequency coaxial cable connector assembly in order to overcome the problems of the prior art. The device can realize a vibration test between the cable and the connector while ensuring that the cable is in a naturally extended state, thereby improving the effectiveness of the vibration test.

[0006] The object of the present invention is achieved through the following technical solutions:

[0007] A three-way vibration test device for a radio frequency coaxial cable connector assembly, the three-way vibration test device comprising a vertical test unit and a horizontal test unit, wherein the vertical test unit comprises a mounting fixture, a vertical bracket and a vibration device, the mounting fixture is arranged below the vertical bracket, and the mounting fixture is fixed on the vibration device; a first fixing portion pair is vertically arranged on the mounting fixture, which is used to clamp and fix the connectors at both ends when the cable is vertically tested; the connectors at both ends of the cable with connectors to be tested are respectively connected to the first fixing portion pair, and the cables are hung on the top frame of the vertical bracket to form an inverted U-shaped structure.

[0008] According to a preferred embodiment, the top frame is a frame structure, a plurality of steel sheets for cable suspension are arranged inside the top frame, and springs are arranged at both ends of the steel sheets, which are connected to the outer frame of the top frame via the springs.

[0009] According to a preferred embodiment, the vertical support includes four first support rods for structural support, the top end of each first support rod is connected to the top frame, and a telescopic structure is provided on the first support rod.

[0010] According to a preferred embodiment, the first fixing portion pair is provided with a threaded structure matching the connector.

[0011] According to a preferred embodiment, the horizontal test device includes a mounting fixture, a horizontal bracket and a vibration device, wherein the mounting fixture is arranged side by side with the horizontal bracket, and the mounting fixture is fixed on the vibration device; the mounting fixture is provided with a second fixing part, and the second fixing part includes a first clamping part, a second clamping part and a positioning rod, wherein the first clamping part is fixed to the bottom plate of the mounting fixture, a plurality of positioning rods for guiding the second clamping part are provided on the top of the first clamping part, a positioning hole matching the positioning rod is provided on the second clamping part, the second clamping part is sleeved on the positioning rod, and a plurality of clamping openings are provided between the second clamping part and the first clamping part for realizing horizontal clamping of the connectors at both ends of the cable; the connectors at both ends of the cable with connectors to be tested are respectively clamped in the two clamping openings, and the cable is horizontally fixed on the horizontal bracket to form a horizontally placed U-shaped structure.

[0012] According to a preferred embodiment, the horizontal bracket includes a supporting frame and a cable accommodating portion, the cable accommodating portion is horizontally arranged, and the cable accommodating portion is provided with a plurality of shock absorbing blocks and buckles, and the cable with a connector to be tested is arranged on the shock absorbing blocks and fixed by the buckles.

[0013] According to a preferred embodiment, the cable accommodating portion is provided with a plurality of parallel accommodating areas, each accommodating area being separated by a telescopic plate.

[0014] According to a preferred embodiment, the support frame of the horizontal bracket is composed of 4 second support rods, 4 first cross beams and 4 second cross beams, wherein the first cross beam has a telescopic structure, and the first cross beam is arranged along the extension direction of the cable.

[0015] According to a preferred embodiment, the second support rod has a telescopic structure.

[0016] The aforementioned main scheme of the present invention and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection by the present invention; and in the present invention, (non-conflicting options) options and other options can also be freely combined. After understanding the scheme of the present invention, those skilled in the art can understand that there are many combinations based on the prior art and common knowledge, all of which are technical schemes to be protected by the present invention, and they are not exhaustively listed here.

[0017] Beneficial effects of the present invention: Through the structural design of the device of the present invention, a vibration test of a cable with a connector to be tested along the cable axis direction and along multiple directions within the cable cross section is achieved. At the same time, the device of the present invention can perform vibration tests on multiple RF coaxial connector assemblies. In addition, the vertical bracket and the horizontal bracket in the device of the present invention are of telescopic design and can be adaptively adjusted according to the specific length of the test sample, so that the device has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the mounting fixture of the present invention;

[0019] Figure 2 is a schematic structural diagram of a vertical support of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the horizontal support of the present invention;

[0021] Among them, 1-installing fixture, 2-fixing hole, 3-first fixing part pair, 4-second fixing part, 4a-first clamping part, 4b-second clamping part, 4c-positioning rod, 4d-clamping mouth, 5-vertical bracket, 6-first support rod, 7-top frame, 8-steel sheet, 9-spring, 10-horizontal bracket, 11-second support rod, 12-first crossbeam, 13 second crossbeam, 14-shock-absorbing block, 15-buckle, 16-telescopic plate. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] It should be noted that, in order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the present invention should be pointed out that, in the present invention, unless the specific structure, connection relationship, positional relationship, power source relationship, etc. are specifically written out, the structure, connection relationship, positional relationship, power source relationship, etc. involved in the present invention are all known by those skilled in the art on the basis of the prior art without creative work.

[0030] Embodiment 1:

[0031] refer to Figure 1 , Figure 2 and Figure 3 As shown, the figure shows a three-way vibration test device for a radio frequency coaxial cable connector assembly, and the three-way vibration test device includes a vertical test unit and a horizontal test unit.

[0032] The vertical test unit is used to complete the vibration test in the direction of the cable axis, and the horizontal test unit is used to complete the vibration test in the direction of the cable cross section.

[0033] Preferably, the vertical test unit comprises a mounting fixture 1, a vertical bracket 5 and a vibration device, wherein the mounting fixture 1 is arranged below the vertical bracket 5, and the mounting fixture 1 is fixed on the vibration device. Preferably, a fixing hole 2 is provided on the bottom plate of the mounting fixture 1 to provide a housing space for fixing bolts between the mounting fixture 1 and the vibration device. The vibration device is used to provide a vibration power source for the vibration of the cable. The vibration direction of the vibration device is arranged perpendicular to the bottom plate of the mounting fixture 1.

[0034] Preferably, the mounting fixture 1 is provided with a first fixing portion pair 3 vertically, which is used to clamp and fix the connectors at both ends when the cable is vertically tested. Furthermore, the first fixing portion pair 3 may also be provided with a threaded structure matching the connector, which is used to fix the connector.

[0035] Preferably, the connectors at both ends of the cable with connector to be tested are respectively connected to the first fixing portion pair 3, and the cable is hung on the top frame 7 of the vertical support to form an inverted U-shaped structure.

[0036] Thus, by vibrating the installation fixture 1 through the vibration device, the vibration of the cable fixed on the installation fixture 1 and arranged vertically is realized, that is, the vibration treatment along the cable axis direction is realized between the cable and the connector. At the same time, by setting the vibration parameters corresponding to the vibration time, vibration frequency or vibration amplitude to the vibration device, the vibration test in the cable axis direction can be completed. Therefore, the tester only needs to test the electrical signal conductivity of the cable that has completed the test to complete the evaluation of the cable that has undergone the vibration test in the cable axis direction.

[0037] Furthermore, the top frame 7 is a frame structure. A plurality of steel sheets 8 for cable suspension are arranged inside the top frame 7, and springs 9 are arranged at both ends of the steel sheets 8, and connected to the outer frame of the top frame 7 via the springs 9. The spring 9 structural design on both sides of the steel sheet 8 helps to realize that the steel sheet 8 can vibrate with the vibration of the cable, and avoids the situation where the steel sheet 8 has an additional pulling force on the cable if it is rigidly connected to the outer frame.

[0038] Furthermore, the vertical support 5 includes four first support rods 6 for structural support, the top of each first support rod 6 is connected to the top frame 7, and a telescopic structure is provided on the first support rod 6. The telescopic structure design of the first support rod 6 enables the vertical support 5 to adapt to various cable lengths.

[0039] Preferably, the horizontal test device comprises a mounting fixture 1, a horizontal support 10 and a vibration device, wherein the mounting fixture 1 and the horizontal support 10 are arranged side by side, and the mounting fixture 1 is fixed on the vibration device.

[0040] Preferably, the installation fixture 1 is provided with a second fixing portion 4. The second fixing portion 4 comprises a first clamping portion 4a, a second clamping portion 4b and a positioning rod 4c. The first clamping portion 4a is fixed to the bottom plate of the installation fixture 1, a plurality of positioning rods 4c are provided on the top of the first clamping portion 4a for guiding the second clamping portion 4b, a positioning hole matching the positioning rod 4c is provided on the second clamping portion 4b, the second clamping portion 4b is sleeved on the positioning rod 4c, and a plurality of clamping openings 4d are provided between the second clamping portion 4b and the first clamping portion 4a for horizontal clamping of the connectors at both ends of the cable.

[0041] Preferably, the connectors at both ends of the cable with connector to be tested are respectively clamped in the two clamping openings 4d, and the cable is horizontally fixed on the horizontal bracket 10 to form a horizontally placed U-shaped structure.

[0042] That is, by applying vibration power perpendicular to the bottom plate of the installation fixture 1 to the installation fixture 1 through the vibration device, vibration can be applied to the cable and the connectors at both ends of the cable in the direction of the cable cross section. Therefore, by setting the vibration parameters corresponding to the vibration time, vibration frequency or vibration amplitude to the vibration device, the vibration test in the direction of the cable cross section axis can be completed. Therefore, the tester only needs to test the electrical signal conductivity of the cable that has completed the test to complete the evaluation of the cable that has undergone the vibration test in the direction of the cable cross section.

[0043] Furthermore, by adjusting the clamping angle of the connector in the second fixing portion 4, vibration tests at different angles in the cable cross section can be implemented.

[0044] Preferably, the horizontal support 10 includes a support frame and a cable accommodating portion. The cable accommodating portion is arranged horizontally, and is provided with a plurality of damping blocks 14 and buckles 15. The cable with the connector to be tested is arranged on the damping blocks 14 and fixed by the buckles 15. The provision of the damping blocks 14 avoids the problem of tension on the cable that occurs when the cable is fixed to a rigid connector during vibration, thereby affecting the final test result.

[0045] Preferably, the cable accommodating portion is provided with a plurality of parallel accommodating areas, each of which is separated by a telescopic plate 16. That is, the horizontal support 10 can accommodate a plurality of test cables at the same time.

[0046] Preferably, the support frame of the horizontal bracket 10 is composed of 4 second support rods 11, 4 first beams 12 and 4 second beams, wherein the first beam 12 has a telescopic structure, and the first beam 12 is arranged along the extension direction of the cable. The telescopic structure in the first beam 12 is arranged to facilitate the horizontal bracket 10 to adjust the length of the accommodating space based on the length of the cable to be tested. Preferably, the second support rod 11 has a telescopic structure. The telescopic structure in the second support rod 11 is arranged to facilitate the horizontal bracket 10 to complete the height adjustment of the horizontal bracket 10, so that the horizontally placed cables and the connectors are in the same horizontal plane as much as possible.

[0047] Through the structural design of the device of the present invention, it is possible to conduct vibration tests on the cable with connector to be tested along the cable axis direction and in multiple directions within the cable cross section. At the same time, the device of the present invention can conduct vibration tests on multiple RF coaxial connector components. In addition, the vertical bracket and the horizontal bracket in the device of the present invention are of telescopic design and can be adaptively adjusted according to the specific length of the test sample, so that the device has a wider range of applications.

[0048] The above basic examples of the present invention and their further optional examples can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed for protection by the present invention. In the scheme of the present invention, each optional example can be arbitrarily combined with any other basic examples and optional examples.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-way vibration test device for a radio frequency coaxial cable connector assembly, characterized in that: The three-way vibration test device includes a vertical test unit and a horizontal test unit. The vertical test unit comprises a mounting fixture (1), a vertical support (5) and a vibration device, wherein the mounting fixture (1) is arranged below the vertical support (5), and the mounting fixture (1) is fixed on the vibration device; The installation fixture (1) is provided with a first fixing portion pair (3) in a vertical manner, which is used to clamp and fix the connectors at both ends when the cable is vertically tested; The connectors at both ends of the cable with connector to be tested are respectively connected to the first fixing portion pair (3), and the cable is hung on the top frame (7) of the vertical support (5) to form an inverted U-shaped structure; The top frame (7) is a frame structure, a plurality of steel sheets (8) for cable suspension are arranged inside the top frame (7), and springs (9) are arranged at both ends of the steel sheets (8), which are connected to the outer frame of the top frame (7) via the springs (9); The vertical support (5) comprises four first support rods (6) for structural support, the top end of each first support rod (6) is connected to the top frame (7), and a telescopic structure is provided on the first support rod (6); The first fixing portion pair (3) is provided with a thread structure matching the connector.

2. A three-way vibration test device for a radio frequency coaxial cable connector assembly as claimed in claim 1, characterized in that: The horizontal test unit comprises a mounting fixture (1), a horizontal support (10) and a vibration device, wherein the mounting fixture (1) and the horizontal support (10) are arranged side by side, and the mounting fixture (1) is fixed on the vibration device; The installation fixture (1) is provided with a second fixing portion, and the second fixing portion (4) comprises a first clamping portion (4a), a second clamping portion (4b) and a positioning rod (4c), wherein the first clamping portion (4a) is fixed to the bottom plate of the installation fixture (1), a plurality of positioning rods (4c) for guiding the second clamping portion (4b) are provided on the top of the first clamping portion (4a), and the second clamping portion (4b) is provided with positioning holes matching the positioning rods (4c), the second clamping portion (4b) is sleeved on the positioning rods (4c), and a plurality of clamping openings (4d) are provided between the second clamping portion (4b) and the first clamping portion (4a) for horizontally clamping the connectors at both ends of the cable; The connectors at both ends of the cable with connector to be tested are respectively clamped in the two clamping openings (4d), and the cable is horizontally fixed on the horizontal support (10) to form a horizontally placed U-shaped structure.

3. A three-way vibration test device for a radio frequency coaxial cable connector assembly as claimed in claim 2, characterized in that: The horizontal support (10) comprises a support frame body and a cable accommodating portion, the cable accommodating portion is arranged horizontally, and the cable accommodating portion is provided with a plurality of shock absorbing blocks (14) and buckles (15), and the cables with connectors to be tested are arranged on the shock absorbing blocks (14) and fixed by the buckles (15).

4. A three-way vibration test device for a radio frequency coaxial cable connector assembly as claimed in claim 3, characterized in that: The cable accommodating portion is provided with a plurality of parallel accommodating areas, and each accommodating area is separated by a telescopic plate (16).

5. A three-way vibration test device for a radio frequency coaxial cable connector assembly as claimed in claim 2, characterized in that: The support frame of the horizontal support (10) is composed of four second support rods (11), four first cross beams (12) and four second cross beams (13). Wherein, the first crossbeam (12) has a telescopic structure, and the first crossbeam (12) is arranged along the extension direction of the cable.

6. A three-way vibration test device for a radio frequency coaxial cable connector assembly as claimed in claim 5, characterized in that: The second support rod (11) has a telescopic structure.

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