CN113484675B - Welding-free type rapid locking adjustable cable parameter testing device - Google Patents
Welding-free type rapid locking adjustable cable parameter testing device Download PDFInfo
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- CN113484675B CN113484675B CN202110754893.9A CN202110754893A CN113484675B CN 113484675 B CN113484675 B CN 113484675B CN 202110754893 A CN202110754893 A CN 202110754893A CN 113484675 B CN113484675 B CN 113484675B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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Abstract
The invention provides a welding-free type rapid locking adjustable test cable parameter device which comprises a radio frequency connector, a connecting sleeve, a spring, a tail shell, a conical bearing and a bayonet screw, wherein the radio frequency connector is connected with the connecting sleeve; the radio frequency connector comprises a first outer conductor, an inner conductor, a medium guide sleeve and a second outer conductor, wherein the inner conductor is fixedly arranged in the first outer conductor through the medium, the end part of the medium is provided with the medium guide sleeve, the medium guide sleeve is arranged in the second outer conductor through medium plugging, and the end part of the second outer conductor is provided with contacts and a plurality of groups of slots positioned among the contacts; the first outer conductor is also provided with a key groove, one end of the key groove is provided with a circular clamping groove, the connecting sleeve is connected with a bayonet screw corresponding to the key groove, the end part of the connecting sleeve is internally threaded with the tail shell, the conical bearing is assembled and connected in the tail shell, and the connecting sleeve is also internally connected with a spring which is abutted against the end part of the first outer conductor.
Description
Technical Field
The invention relates to a detection and self-locking structure of a single-head assembly or a bare wire, in particular to a welding-free type rapid locking adjustable cable parameter testing device.
Background
In the prior art, cable manufacturers and terminal users still have a great defect in the aspect of distinguishing the performance superiority of the radio frequency cable, and a method which is generally adopted in the past is to directly weld connectors at two ends of the cable.
The cable connection composite structure (with the publication number of CN110311270A) of the short-tail coaxial radio frequency connector comprises a hollow shell, a coaxial cable penetrating into the shell, a welding cup used for welding a metal braid layer of the coaxial cable and a clamping nut used for clamping and fixing the welding cup in the shell, wherein the welding cup is provided with a plurality of welding holes, an extrusion ring used for compressing a stainless steel wire of the coaxial cable is clamped between the clamping nut and the welding cup, and a wire arranging sleeve used for enabling the compressed stainless steel wire to fall down is sleeved on the outer side of the welding cup. According to the invention, the metal braid layer is fixed by welding, and the stainless steel wires are fixed by pressing, so that the problems of support outside the shielding layer and reduction of tensile effect caused by falling of the stainless steel wires can be avoided, the connector is prevented from being further disconnected from the cable, and the lapping among the stainless steel wires can be kept to ensure the shielding effect of the stainless steel wires, the radio frequency performance of the product is ensured, but the common technical problems still exist, and the stability and the reliability are poor.
Therefore, a welding-free type cable parameter quick-locking adjustable test device which can realize quick locking, has small damage to a cable and has higher stability and reliability is urgently needed.
Disclosure of Invention
The invention aims to provide a welding-free type rapid locking adjustable cable parameter testing device which can realize rapid locking, has small damage to a cable and has higher stability and reliability.
The invention provides the following technical scheme:
a welding-free type rapid locking adjustable test cable parameter device comprises a radio frequency connector, a connecting sleeve, a spring, a tail shell, a conical bearing and a bayonet screw; the radio frequency connector comprises a first outer conductor, an inner conductor, a medium guide sleeve and a second outer conductor, wherein the inner conductor is arranged in the first outer conductor, and the outer side of the inner conductor is fixed in the first outer conductor in a press fit mode through the medium; the end part of the first outer conductor is also fixedly provided with a second outer conductor in a press fit manner, the end part of the medium is provided with a medium guide sleeve, the medium guide sleeve is arranged in the second outer conductor in a medium plugging manner, the end part of the second outer conductor is provided with contacts with elastic expansion and contraction functions in a stress state, and the second outer conductor is also provided with a plurality of groups of slots which are positioned among the contacts and are used for realizing the opening expansion or the closing of the contacts along with the change of the stress condition; a key groove is further formed in the first outer conductor, a vertically and outwardly expanded circular clamping groove is formed in one end, away from the second outer conductor, of the key groove, the connecting sleeve is sleeved outside the first outer conductor and is connected with a bayonet screw corresponding to the key groove, and a cylinder extending into the key groove for guiding is arranged at the end portion of the bayonet screw; the end part of the connecting sleeve is internally threaded with a tail shell, a conical bearing is assembled and connected in the tail shell, a spring which is abutted against the end part of the first outer conductor is further connected in the connecting sleeve, the radio frequency cable penetrates through one end of the tail shell and can penetrate out of the conical bearing to enter the inner side of the contact, and after the spring is compressed, the contact extends into the conical bearing to be stressed and clasps the cable tightly.
Preferably, the tail shell further comprises a hoop bearing 6 located in the tail shell, a retaining ring and a reserved gap located between the retaining ring and the conical bearing are arranged in the tail shell, and the hoop bearing 6 is fixed between the reserved gap and the retaining ring.
Preferably, a circle of straight-line barbs used for being clamped and fixed with the inner side of the medium are arranged outside the inner conductor.
Preferably, a tooth punching barb used for being clamped and fixed with the outer side of the medium is arranged in the first outer conductor.
Preferably, the bayonet screw is connected with the connecting sleeve through threads.
Preferably, the outer thread of the tail shell is connected with a tuning nut which can be locked at the end part of the connecting sleeve.
Preferably, the connecting sleeve is externally provided with an anilox drawing ring with an anti-skid function and a groove arranged on the anilox drawing ring.
The invention has the beneficial effects that:
1. the invention adopts the matching of the key slot and the buckle screw, thereby quickly realizing the locking of the mechanism to the cable;
2. the invention adopts the combination of the tapered bearing and the slotted contact, thereby ensuring the uniformity and reliability of the locking force of the cable;
3. the structure of the invention can adopt an integral demagnetization process, thereby avoiding the interference of the magnetism on electromagnetic wave signals and ensuring the accuracy of test parameters;
4. according to the invention, the cable is fixed by arranging the hoop bearing, so that the stability and the anti-falling effect of the cable can be enhanced;
5. the invention selects the matching of the tuning nut and the tail shell at the tail part, thereby realizing the adjustment of different forces and avoiding the phenomenon of damaging the cable weaving or causing the instability of performance transmission due to the deficiency of the positive force;
6. the invention adopts the spring device, thereby realizing the switching of positive and negative directions, and the spring has long service life, can be integrally disassembled and is easy to replace;
7. the invention realizes the welding-free type cable parameter testing, and has practical application significance for single-head components and bare wires;
8. the invention adopts the conical bearing, and the damage of the rotating force to the cable and the contact head is counteracted by utilizing the rotating action of the conical bearing.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a front view in half section of the present invention;
FIG. 2 is a cross-sectional view of the tuning nut of the present invention in a locked and unlocked configuration;
FIG. 3 is a structural cross-sectional view of the present invention in a locked state;
FIG. 4 is a sectional view of the structure of the present invention as assembled;
FIG. 5 is a schematic structural view of a cable;
FIG. 6 is a front view in half section of the present invention as assembled;
FIG. 7 is a structural cross-sectional view of a tapered bearing;
Detailed Description
With reference to fig. 1 to 6, a welding-free type fast locking adjustable test cable parameter device includes, in this embodiment, a radio frequency connector 1, a connection sleeve 2, a spring 3, a tail housing 4, and a tapered bearing 5; the radio frequency connector 1 comprises a first outer conductor 11, an inner conductor 12, a medium 13, a medium guide sleeve 14 and a second outer conductor 15, wherein the first outer conductor 11, the inner conductor 12, the medium 13, the medium guide sleeve 14 and the second outer conductor 15 are firmly fixed in an anti-rotation mode through a straight-line barb 121 in the inner conductor 12 and a tooth punching barb 111 in the first outer conductor 11 and the medium 13 in a press-fit mode respectively, the second outer conductor 15 is provided with a contact 151 with an elastic expansion and contraction function under a stress state, and meanwhile, the second outer conductor 15 is provided with 6 grooves 152, so that the contact 151 can be changed along with the stress condition to generate opening expansion and contraction; first outer conductor 11 has set up evenly around distributed keyway 112 outward, keyway 112 has set up circular slot 1121, link together first outer conductor 11 and adapter sleeve 2 through keyway 112 and bayonet screw 8, and can form the positive negative portable of axial through having set up cylinder 83 in bayonet screw 8 with keyway 112 and spring 3, keyway 112 has set up circular slot 1121, it cooperates (impel and add clockwise rotation) with cylinder 83, form locking structure, bayonet screw 8 is connected through screw 82 and screw thread 22 with adapter sleeve 2, for the fastening, set up word groove 81 (can screw up with the screwdriver) at screw 8.
The connecting sleeve 2 has a tail housing 4 connected thereto, which is connected by an internal thread 23 and an external thread 41. The tail shell 4 is provided with a tuning nut 7, a conical bearing 5 and a hoop bearing 6 which are matched with the tail shell, the tail shell 4 and the conical bearing 5 are fixed in a tight fit mode, and the hoop bearing 6 is fixed in the conical bearing 5 and the tail shell 4 through a reserved gap of the tail shell 4 and a retaining ring.
After the structure is adopted, the fast locking device is realized through the matching of the bayonet screw 8, the key groove 112 and the spring 3; by adopting the conical bearing 5 to be matched with the contact 151 in a screwing state, a reliable and firm cable clamping device is realized, stable transmission of signals is realized, and the feasibility of product detection is ensured, referring to the cable shown in fig. 5, which comprises a radio frequency cable 9, a cable braid 92 and a cable core 91;
by the matching of the tuning nut 7, the tail shell 4 and the connecting sleeve 2, the contact distance between the bearing contact surface 51 and the contact 151 can be effectively controlled, so that the contact force and the size of the contact surface can be changed; due to the adoption of the conical bearing, the axial force can be realized under the condition of ensuring the radial force through the force decomposition, and the cable can be ensured not to retreat.
The working principle of the invention is as follows:
the structure of the invention adopts the devices such as the bearing, the self-locking spring and the like to realize the solderless bare wire or the single-head radio frequency component and detect the electrical parameters of the component, when the device is used for the first time, before the end of the cable is inserted, the connecting sleeve 2 is moved axially and rotated clockwise, so that the bayonet screw cylinder 83 is fixed on the circular clamping groove 1121, at the moment, one end of the cable can be inserted into the device, the tail shell 4 is rotated to drive the conical bearing 5 to move forwards, when the contact contacts the conical bearing, the clicking sound can be heard, the rotation is slowed down, at the moment, the contact can hold the cable tightly under the force application of the bearing contact surface of the conical bearing, then the cable is locked by the tuning nut and then connected to a radio frequency instrument to test the parameters of the cable; when the locking is removed, the connecting sleeve 2 only needs to be rotated anticlockwise, automatic retraction can be realized under the action of the spring, the bearing contact surface 51 and the contact 151 are automatically separated, and the cable can be easily taken out; when the cable is subsequently clamped, the cable is inserted in place, and then the connecting sleeve 2 is pushed and rotated clockwise (in the pushing process of the connecting sleeve 2, a bearing contact surface 51 in the conical bearing 5 is in radial contact with a contact 151 in the second outer conductor 15, and the contact 151 is radially contracted due to the fact that the conical bearing 5 applies radial force to the contact, so that the purpose of locking a cable braid is achieved, and stable and complete transmission of signals is guaranteed);
the tapered bearing 5 has another function of eliminating the rotational force by the function of the bearing to cause damage to the cable and the contact portion when the tail housing 4 is screwed in; the connecting sleeve 2 is provided with an anilox drawing ring 21 with an anti-skid function and a groove 211 for convenience of use. The clamp bearing 6 can elastically fasten the outer sheath of the cable when the cable is connected, so that the stability is ensured; the yoke bearing uses M250 material and has good durability testing, groove compensation to maintain tolerances, allow low bearing clearance, and ensure easy assembly.
In order to integrally test different types of cable parameters, wherein third-order intermodulation (PIM) is sensitive to the magnetism of materials, parts in a conventional bearing are all made of materials with high iron content, and therefore, an integral demagnetization process is adopted.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A welding-free type rapid locking adjustable test cable parameter device is characterized by comprising a radio frequency connector, a connecting sleeve, a spring, a tail shell, a conical bearing and a bayonet screw; the radio frequency connector comprises a first outer conductor, an inner conductor, a medium guide sleeve and a second outer conductor, wherein the inner conductor is arranged in the first outer conductor, and the outer side of the inner conductor is fixed in the first outer conductor through medium press fit;
the end part of the first outer conductor is also fixedly provided with a second outer conductor in a press fit manner, the end part of the medium is provided with a medium guide sleeve, the medium guide sleeve is arranged in the second outer conductor in a plugging manner by the medium, the end part of the second outer conductor is provided with a contact with an elastic expansion and contraction function in a stressed state, and the second outer conductor is also provided with a plurality of groups of slots which are positioned among the contacts and are used for realizing the expansion or contraction of the contact along with the change of the stressed condition;
a key groove is further formed in the first outer conductor, a circular clamping groove which is vertically expanded outwards is formed in one end, away from the second outer conductor, of the key groove, the connecting sleeve is sleeved outside the first outer conductor and is connected with a bayonet screw corresponding to the key groove, and a cylinder which extends into the key groove and guides is arranged at the end of the bayonet screw;
the end part of the connecting sleeve is internally connected with a tail shell in a threaded manner, a conical bearing is assembled and connected in the tail shell, a spring which is abutted against the end part of the first outer conductor is further connected in the connecting sleeve, a radio frequency cable penetrates through one end of the tail shell and can penetrate out of the conical bearing to enter the inner side of the contact, and after the spring is compressed, the contact extends into the conical bearing to bear the force and hold the cable tightly;
still including being located the clamp bearing of tail casing, be provided with in the tail casing and keep off the ring and be located the reservation space between fender ring and the conical bearing, the clamp bearing is fixed in reserve clearance and keep off between the ring.
2. The weld-free quick-locking adjustable test cable parameter device according to claim 1, wherein a circle of straight-line barbs for clamping and fixing with the inner side of the medium are arranged outside the inner conductor.
3. The weld-free quick-locking adjustable test cable parameter device according to claim 1, wherein a tooth punching barb for clamping and fixing with the outer side of the medium is arranged in the first outer conductor.
4. The weld-free rapid-locking adjustable test cable parameter device according to claim 1, wherein the bayonet screw is in threaded connection with the connecting sleeve.
5. The weld-free rapid-locking adjustable test cable parameter device according to claim 1, wherein the tail housing is externally and threadedly connected with a tuning nut that can be locked at an end of the connection sleeve.
6. The weld-free quick-locking adjustable test cable parameter device according to claim 1, wherein the connecting sleeve is externally provided with an anilox drawing ring with an anti-slip function and a groove arranged on the anilox drawing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110754893.9A CN113484675B (en) | 2021-07-01 | 2021-07-01 | Welding-free type rapid locking adjustable cable parameter testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110754893.9A CN113484675B (en) | 2021-07-01 | 2021-07-01 | Welding-free type rapid locking adjustable cable parameter testing device |
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| Publication Number | Publication Date |
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| CN113484675A CN113484675A (en) | 2021-10-08 |
| CN113484675B true CN113484675B (en) | 2022-04-08 |
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| CN202110754893.9A Active CN113484675B (en) | 2021-07-01 | 2021-07-01 | Welding-free type rapid locking adjustable cable parameter testing device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114204304B (en) * | 2021-11-19 | 2024-03-12 | 东南大学 | Coaxial connector suitable for high-voltage radio frequency cable |
| CN114019425A (en) * | 2021-11-25 | 2022-02-08 | 辽宁工程技术大学 | Automatic diagnosis device and method for mining high-voltage cable joint |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209896296U (en) * | 2019-07-09 | 2020-01-03 | 镇江市华展电子科技有限公司 | Radio frequency connector |
| CN112751246A (en) * | 2020-12-31 | 2021-05-04 | 罗森伯格亚太电子有限公司 | Adapter |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202308393U (en) * | 2011-08-25 | 2012-07-04 | 合肥佰特微波技术有限公司 | Novel RF coaxial cable connector |
| US8662911B2 (en) * | 2011-09-23 | 2014-03-04 | Commscope, Inc. Of North Carolina | Coaxial connectors including conductive anti-friction bearing mechanisms and/or locking mechanisms and related methods |
| CN204205108U (en) * | 2014-11-13 | 2015-03-11 | 镇江华浩通信器材有限公司 | A kind of high-performance N-type plumb joint radio frequency (RF) coaxial connector |
| US9966702B2 (en) * | 2015-05-01 | 2018-05-08 | Commscope Technologies Llc | Coaxial cable connector interface for preventing mating with incorrect connector |
| CN104916935A (en) * | 2015-07-01 | 2015-09-16 | 苏州华旃航天电器有限公司 | Right-angle bending type radio frequency coaxial connector |
| CN106410445B (en) * | 2015-07-28 | 2020-01-07 | 康普技术有限责任公司 | Cable connector |
| CN207947784U (en) * | 2018-01-10 | 2018-10-09 | 南京中兴新软件有限责任公司 | Radio frequency line cable end and radio-frequency performance test device |
| CN213042688U (en) * | 2020-10-20 | 2021-04-23 | 常州易泽科通信科技有限公司 | Radio frequency probe type cable assembly with radially movable inner conductor |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209896296U (en) * | 2019-07-09 | 2020-01-03 | 镇江市华展电子科技有限公司 | Radio frequency connector |
| CN112751246A (en) * | 2020-12-31 | 2021-05-04 | 罗森伯格亚太电子有限公司 | Adapter |
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