CN209687977U - It is a kind of to prevent from blocking sunken compressed spring mutually - Google Patents

Abstract

It prevents from blocking sunken compressed spring mutually the utility model discloses a kind of, the compressed spring is by coil of wire coiled, the longitudinal section of the wire is oblate shape, and shape has angle between the longitudinal section and the central axis of compressed spring, the corner dimension is adjustable, the compressed spring includes multiple spring rings, in a free state, the axial width of the spring ring is greater than the gap between adjacent two spring ring, under compression, along shrinkage direction, the inner surface of spring ring described in the outer surface of the previous spring ring and the latter fits, so that the stroke of the spring ring is greater than the gap between adjacent two spring ring.The stroke of compressed spring in the utility model, the compressed spring can be adjusted according to the angle between longitudinal section and central axis, save installation space, and sunken winding will not be blocked between compressed spring mutually, artificial separation is avoided, cost has been saved, improves production efficiency.

Description

It is a kind of to prevent from blocking sunken compressed spring mutually

Technical field

The utility model relates to microelectronics and micro-mechanical component mounting technology field, specifically, the utility model relates to It is a kind of to prevent from blocking sunken compressed spring mutually.

Background technique

Compressed spring is subject to the helical spring of axial compressive force, compressed spring by coil of wire around forming, and the metal The section of silk is mostly circle, has certain gap between the circle and circle of compressed spring, and compressed spring is shunk when by external applied load Deformation stores deformation energy.

The stroke of existing conventional compact spring is equal to or less than the sum of the gap between each spring ring of compressed spring, When stroke is inadequate, need to increase the circle number of spring to increase the stroke of Monolithic spring, such mode will increase the installation of spring Space.

And in microelectronics and micro-mechanical component mounting technology field, since compressed spring is small in size, in transportational process In, several compressed springs can be loaded in a packaging bag, and the gap of existing compressed spring is both greater than spring line footpath, makes A spring can block and be trapped in another spring, therefore in transport moving process, multiple springs, which mutually twine, to connect together, Roll into a mass by kneading, when in use, need manually to separate spring one by one in such a way that hand is selected, thus take a large amount of manpower and Working hour greatly reduces production efficiency.

Utility model content

For the shortcomings of the prior art, prevent mutual card from falling into the purpose of the utility model is to provide a kind of The stroke of compressed spring, the compressed spring can be adjusted by changing the angle between longitudinal section and central axis, be saved Installation space, and will not block sunken winding between compressed spring mutually, artificial separation is avoided, production efficiency is improved.

On the one hand, the utility model discloses a kind of compressed spring for preventing mutual card sunken, is coiled into spiral shell by coil of wire Shape is revolved, the longitudinal section of the wire is oblate shape, and shape has angle between the longitudinal section and the central axis of compressed spring, The corner dimension is adjustable, to be adapted with the stroke of required compressed spring；

Wherein, the compressed spring includes multiple spring rings, and in a free state, the axial width of the spring ring is big Gap between adjacent two spring ring, under compression, along shrinkage direction, the outer surface of the previous spring ring with The inner surface of spring ring described in the latter fits, so that between the stroke of the spring ring is greater than between adjacent two spring ring Gap.

Preferably, the spring ring is to set up separately in the oblique oblate of central axis two sides by the longitudinal section of central axis.

Preferably, along the shrinkage direction of the compressed spring, the outer diameter of the spring ring gradually successively decreases.

Preferably, arc angling is provided on the end face of the spring ring.

On the other hand, the utility model discloses a kind of elastic inner conductor of radio frequency (RF) coaxial connector, leads in the elasticity Body includes compressed spring as described above.

Preferably, the elastic inner conductor includes:

Elastic conductor is rounded cylindrical structure, the first accommodating chamber is provided in the elastic conductor；

Conductor is coaxially disposed with the elastic conductor, and one end of the conductor is slideably positioned in the elastic conductor In first accommodating chamber, and the outer surface of the conductor is in contact with the inner surface of the elastic conductor, is arranged in the conductor There is the second accommodating chamber；

Pin shaft, is used to connect the elastic conductor and conductor, and one end of the pin shaft is fixed on the elastic conductor In first accommodating chamber, the other end is movably arranged in second accommodating chamber；

Wherein, compressed spring, one end of the compressed spring and the pin shaft phase are provided in second accommodating chamber Even, the other end is connected with the conductor, when the elastic conductor and pin shaft are pressurized when moving in the axial direction, the compressed spring quilt Compression, so that the conductor slides in the first receiving cavity.

The beneficial effects of the utility model are:

1) what the utility model disclosed prevents from blocking sunken compressed spring mutually, and the compressed spring is by coil of wire around formation Helical form, and the longitudinal section of the wire is oblate shape, forms one between the longitudinal section and the central axis of compressed spring Angle, the angle can be adjusted according to the stroke of required compressed spring, when the stroke of required compressed spring increases When big, without increasing the circle number of spring, the installation space of compressed spring is reduced.

2) what the utility model disclosed prevents from blocking sunken compressed spring, in a free state, the axis of the spring ring mutually It is greater than the gap between adjacent two spring ring to width, therefore, compressed spring can not block the gap for being trapped in another compressed spring It is interior, the company of twining mutually is avoided between two compressed springs, no longer needs to manually be separated when in use, substantially increases production effect Rate.

3) what the utility model disclosed prevents from blocking sunken compressed spring, under complete compressive state, the multiple bullet mutually Spring coil is overlapped, and therefore, the stroke of compressed spring is greater than the sum of the gap between whole spring rings, relative to conventional compression The attainable stroke of compressed spring institute of spring, the utility model is bigger.

Above description is only the general introduction of technical scheme, in order to better understand the technological means of the application, So as to be implemented in accordance with the contents of the specification, and in order to allow the above and other objects, features and advantages energy of the application It is enough clearer and more comprehensible, with the preferred embodiment of the application and cooperates attached drawing below detailed description is as follows.

According to the accompanying drawings to the detailed description of the application specific embodiment, those skilled in the art will be brighter The above-mentioned and other purposes of the application, advantages and features.

Detailed description of the invention

In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the application Some embodiments for those of ordinary skill in the art without creative efforts, can also basis These attached drawings obtain other attached drawings.In all the appended drawings, similar element or part are generally identified by similar appended drawing reference. In attached drawing, each element or part might not be drawn according to actual ratio.

Fig. 1-2 is a kind of structural schematic diagram for preventing from mutually blocking sunken compressed spring that one embodiment of the disclosure provides；

Fig. 3 is a kind of structural schematic diagram of the longitudinal section for wire that one embodiment of the disclosure provides；

Fig. 4 is a kind of sectional view for preventing from mutually blocking sunken compressed spring that one embodiment of the disclosure provides；

Fig. 5 is the structural schematic diagram of the elastic conductor in a kind of elastic inner conductor that one embodiment of the disclosure provides；

Fig. 6 is a kind of explosive decomposition figure for elastic inner conductor that another embodiment of the disclosure provides；

Fig. 7-8 is a kind of sectional view for elastic inner conductor that another embodiment of the disclosure provides.

Specific embodiment

To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is Some embodiments of the present application, instead of all the embodiments.In the following description, such as specific configuration and component are provided Specific detail just for the sake of help comprehensive understanding embodiments herein.It therefore, it will be apparent to those skilled in the art that can To make various changes and modifications the embodiments described herein without departing from the scope and spirit of the present application.In addition, in order to clear Except with it is succinct, the description to known function and construction is omitted in embodiment.

It should be understood that " one embodiment " or " the present embodiment " that specification is mentioned in the whole text mean it is related with embodiment A particular feature, structure, or characteristic include at least one embodiment of the application.Therefore, occur everywhere in the whole instruction " one embodiment " or " the present embodiment " not necessarily refer to identical embodiment.In addition, these specific feature, structure or spies Property can in any suitable manner combine in one or more embodiments.

It should also be noted that, herein, relational terms such as first and second and the like are used merely to one Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain Lid non-exclusive inclusion.

Embodiment 1

As shown in Figs. 1-2, a kind of compressed spring for preventing mutual card sunken provided for an embodiment, the compressed spring 300 by coil of wire around forming helical form, as shown in figure 3, the longitudinal section of the wire is oblate shape, and the longitudinal section with Form an angle α between the central axis of compressed spring, the angle α can according to the stroke of required compressed spring 300 come It is adjusted.

Further, the compressed spring 300 includes multiple spring rings, and spring ring is by the longitudinal section of central axis Set up separately in the oblique oblate of central axis two sides, the oblique oblate angle between central axis is angle α.And along described The outer diameter of the shrinkage direction of compressed spring 300, the spring ring gradually successively decreases, so that being in pressure completely in compressed spring 300 Under contracting state, along shrinkage direction, the inner surface of spring ring described in the outer surface of the previous spring ring and the latter is affixed It closes, is detailed in Fig. 4, in its natural state, is separated by certain interval between spring ring 301 and adjacent spring ring 302, is compressing completely Under state, spring ring 301 is moved at the spring ring position that dotted line indicates in figure, the outer surface of spring ring 301 and the spring The inner surface of circle 302 fits, i.e., the multiple spring ring is overlapped.Therefore, the stroke of spring ring is greater than adjacent two spring Gap between circle, therefore the stroke of the compressed spring 300 is greater than the sum of the gap between whole spring rings.Relative to routine Compressed spring, the attainable stroke of the institute of compressed spring 300 described in the present embodiment are bigger.It is worth noting that, this is practical new The stroke of spring ring described in type is the distance between the initial position of spring ring and compressed position, the compressed spring 300 stroke is the distance between the initial position of compressed spring 300 and compressed position.In the manufacturing process of spring, The size of angle α can be adjusted according to required spring travel and gapping of spring, it is described as angle α is bigger The stroke of compressed spring 300 is bigger, therefore, longitudinal section and compression can be adjusted according to the stroke of required compressed spring 300 Angle α between 300 central axis of spring, without increasing the circle number of compressed spring, so that the installation for reducing compressed spring is empty Between.

Further, in a free state, the axial width of the spring ring is greater than the gap between adjacent two spring ring, Therefore, during being transported several compressed springs in packaging bag, compressed spring 300, which can not block, is trapped in another In the gap of compressed spring, the mutual company of twining between multiple compressed springs is avoided, no longer needs to manually be separated when in use, Production efficiency is substantially increased, cost has been saved.

Further, it is provided with arc angling on the end face of the spring ring, to be convenient for compression in compression process Contact between adjacent two spring ring of spring 300.

Embodiment 2

On the basis of the above embodiments, described that the compressed spring that mutually card is sunken is prevented to can be applied to RF coaxial connection Device reduces cost to improve the assembly and production efficiency of the radio frequency (RF) coaxial connector.

As viewed in figures 5-8, a kind of structural representation of the elastic inner conductor of the radio frequency (RF) coaxial connector provided for an embodiment Figure, the elastic inner conductor of the radio frequency (RF) coaxial connector includes: elastic conductor 100, conductor 400, pin shaft 200 and compressed spring 300, the conductor 400 includes tailstock 420 and round tube 410 again.

Wherein, as shown in fig. 7, elastic conductor 100 is rounded cylindrical structure, the is provided in the elastic conductor 100 One accommodating chamber 104.Conductor 400 and the elastic conductor 100 are coaxially disposed, and one end of the conductor 400 is slideably positioned in institute It states in the first accommodating chamber 104 of elastic conductor 100, and the inner surface of the outer surface of the conductor 400 and the elastic conductor 100 It is in contact, is provided with the second accommodating chamber 412 in the conductor 400 in the conductor.

One end of pin shaft 200 is fixed in the first accommodating chamber 104 of the elastic conductor 100, and the other end is movably arranged on In second accommodating chamber 412, for connecting the elastic conductor 100 and conductor 400, set between pin shaft 200 and conductor 400 It is equipped with a compressed spring 300, and the compressed spring 300 is placed in the second accommodating chamber 412, when the elastic conductor 100 and pin When the compression of axis 200 moves in the axial direction, the compressed spring 300 is compressed, and the conductor 400 can be in first accommodating chamber Sliding, to realize the axial floating of elastic conductor, solves the axial direction between radio frequency (RF) coaxial connector and circuit board in 104 Fit tolerance.

Further, as shown in fig. 6, offering multiple open slots 102 in the circumferential direction of the elastic conductor 100, adjacent two An elastic slice 101 is formed between a open slot 102, so that the diameter of the elastic conductor 100 is adjustable.In order to guarantee elasticity The inner surface of conductor 100 and the outer surface of conductor 400 are in contact, and the internal diameter of the elastic conductor 100 should be not more than to be connect therewith Outer diameter at the conductor 400 of touching allows conductor 400 in elastic conductor 100 since the diameter of elastic conductor 100 is adjustable Sliding by the inner diameter size of elastic conductor 100 without being limited in first accommodating chamber 104.And the thickness of the elastic conductor 100 Spend thin, therefore conductor 400 and the diameter of 100 touching position of elastic conductor are small relative to the diameter change of conductor 400, thus in bullet During property 100 axial floating of conductor, impedance variations are small, and the performance of product is more stable.

Further, as shown in Figure 7 and Figure 8, protrusion is provided in the first cavity 104 of the elastic conductor 100 103, described raised 103 can be inner annular or dotted, and described raised 103 with the bottom end interval of the elastic conductor 100 Setting, one end of the pin shaft 200 are provided with hook 202, the hook 202 be fastened on the elastic conductor 100 bottom end and Between protrusion 103, to realize being fixedly connected for the pin shaft 200 and elastic conductor 100,

Further, be additionally provided with an annular convex platform 201 on the pin shaft 200, the boss 201 and hook 202 it Between spacing be 100 axial floating of elastic conductor maximum distance, i.e., the described spacing be conductor 400 exist close to 200 one end of pin shaft Slidable maximum distance in first accommodating chamber 104, the spacing between the boss 201 and hook 202 are less than the elastic conducting The length of body 100 so that during 100 axial floating of elastic conductor, the outer surface of the conductor 400 always with the elasticity The inner surface of conductor 100 is in contact to be detached between the two, therefore, connects the elastic conducting using pin shaft 200 Body 100 and conductor 400, so that the contact between elastic conductor 100 and conductor 400 is relatively reliable.

Further, the conductor 400 is made of tailstock 420 and round tube 410, and the tailstock 420 is plugged in the round tube In 410, it is provided with a groove 421 on the tailstock 420, is provided on the round tube 410 and is adapted with the groove 421 Interior concave point 411, the interior concave point 411 is placed in the groove 421, and the round tube 410 is close to the one of the tailstock 420 End and the side of the groove 421 offset, to realize being fixedly connected for the tailstock 420 and the round tube 410.And in the circle Pipe 410 is provided with crimping 413 close to one end of the pin shaft 200, as shown in figure 5, when the conductor 400 slides into pin shaft 200 201 position of boss at when, the boss 201 of the crimping 413 and pin shaft 200 offsets, to limit the pin shaft 200 and elastic conducting The shaft orientation moving range of body 100.

Further, compressed spring 300 is placed in round tube 410, and 300 one end of the compressed spring is wound on the pin shaft It on 200, and offsets with the boss 201 of the pin shaft 200, the other end offsets with the tailstock 420, when the elastic conductor 100 When being axially moveable with the compression of pin shaft 200, when the round tube 410 slides in first accommodating chamber 104, the compressed spring 300 are compressed, and the spring ring of compressed spring 300 is overlapped, along the shrinkage direction of the compressed spring 300, the latter bullet Spring coil supports previous spring ring, and therefore, 300 need of compressed spring are partially wrapped on pin shaft 200, in compression process, by The spring ring of spring ring support previous section on pin shaft 200, without by whole compressed springs 300 wound on pin shaft On.After external force cancellation, the elastic conductor 100 and pin shaft 200 can under the action of the reaction force of compressed spring 300 To reset.And the compressed spring 300 has precompressed, and under initial position, the compressed spring 300 is to tailstock 420 and pin shaft 200 are all applied with thrust, so that pin shaft 200 will not slide in round tube 410, i.e., under no external force, lead in elasticity The structure of body is able to maintain stabilization.

To the above description of all disclosed embodiments, professional and technical personnel in the field is made to can be realized or use this Shen Please.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, originally Application is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein Consistent widest scope.

Claims (6)

1. a kind of prevent from blocking sunken compressed spring mutually, by coil of wire coiled, which is characterized in that the wire Longitudinal section be oblate shape, shape has angle between the longitudinal section and the central axis of compressed spring, and the corner dimension is adjustable, To be adapted with the stroke of required compressed spring；

Wherein, the compressed spring includes multiple spring rings, and in a free state, the axial width of the spring ring is greater than phase Gap between adjacent two spring rings, under compression, along shrinkage direction, the outer surface of the previous spring ring with it is latter The inner surface of a spring ring fits, so that the stroke of the spring ring is greater than the gap between adjacent two spring ring.

2. compressed spring as described in claim 1, which is characterized in that the spring ring is to set up separately by the longitudinal section of central axis In the oblique oblate of central axis two sides.

3. compressed spring as described in claim 1, which is characterized in that along the shrinkage direction of the compressed spring, the bullet The outer diameter of spring coil gradually successively decreases.

4. compressed spring as described in claim 1, which is characterized in that be provided with arc angling on the end face of the spring ring.

5. a kind of elastic inner conductor of radio frequency (RF) coaxial connector, which is characterized in that the elasticity inner conductor includes such as claim The described in any item compressed springs of 1-4.

6. it is according to claim 5 elasticity inner conductor, which is characterized in that it is described elasticity inner conductor include:

Elastic conductor (100) is rounded cylindrical structure, is provided with the first accommodating chamber in the elastic conductor (100) (104)；

Conductor (400) is coaxially disposed with the elastic conductor (100), and one end of the conductor (400) is slideably positioned in described In the first accommodating chamber (104) of elastic conductor (100), and the outer surface of the conductor (400) and the elastic conductor (100) Inner surface is in contact, and is provided with the second accommodating chamber (412) in the conductor (400)；

Pin shaft (200), is used to connect the elastic conductor (100) and conductor (400), and one end of the pin shaft (200) is fixed In the first accommodating chamber (104) of the elastic conductor (100), the other end is movably arranged in second accommodating chamber (412)；

Wherein, be provided with compressed spring (300) in second accommodating chamber (412), one end of the compressed spring (300) with The pin shaft (200) is connected, and the other end is connected with the conductor (400), when the elastic conductor (100) and pin shaft (200) by When pressure moves in the axial direction, the compressed spring (300) is compressed, so that the conductor (400) is in first accommodating chamber (104) sliding in.