CN217413866U - Pulling device - Google Patents

Abstract

The disclosed embodiments relate to an extractor for separating two connected modules, the extractor comprising: the outer peripheral surface of the first screw is provided with a first external thread; a second screw having a second external thread on an outer circumferential surface thereof; the connecting portion, the one end of connecting portion be equipped with the second internal thread hole of first external screw thread looks adaptation, the other end of connecting portion be equipped with the third internal thread hole of second external screw thread looks adaptation. The extractor in the embodiment of the disclosure has a simple structure, can complete the rapid extraction of the module, reduces the stress concentration of the contact surface, does not damage the surface of the connected module, does not damage the connector, is simple to operate, and can greatly improve the maintainability of the product.

Description

Pulling device

Technical Field

The embodiment of the disclosure relates to the technical field of auxiliary tools for module disassembly, in particular to a puller.

Background

A large number of low-frequency connectors and radio-frequency connectors are mounted on an internal module of the radar equipment, and the low-frequency connectors and the radio-frequency connectors can achieve functions of power transmission, instruction transmission, information exchange and the like among all sub-system equipment in the radar. In order to reduce connecting cables and improve the integration and the cleanliness of radar equipment, a large number of low-frequency connectors and radio-frequency connectors are arranged on one or more modules, so that when the modules are repaired and pulled out, the occlusion force among the connectors is too large, the connectors are not convenient to pull out, and the printed board in the modules is easy to deform or damage the connectors, thereby influencing the maintainability of the radar.

The pulling-up method is usually to install a handle or set a fastening screw on the module having a large number of low frequency connectors and rf connectors to assist in pulling out the module.

Accordingly, there is a need to ameliorate one or more of the problems with the related art solutions described above.

It is noted that this section is intended to provide a background or context to the disclosure as recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

SUMMERY OF THE UTILITY MODEL

It is an object of embodiments of the present disclosure to provide an extractor that overcomes, at least to some extent, one or more of the problems due to limitations and disadvantages of the related art.

The disclosed embodiment provides an extractor for separating two connected modules, the extractor includes:

the outer peripheral surface of the first screw is provided with a first external thread;

a second screw having a second external thread on an outer circumferential surface thereof;

the connecting portion, the one end of connecting portion be equipped with the second internal thread hole of first external screw thread looks adaptation, the other end of connecting portion be equipped with the third internal thread hole of second external screw thread looks adaptation.

In an embodiment of the disclosure, an end surface of the first screw opposite to the second screw is provided with a first internal threaded hole, and the second external thread of the second screw is matched with the first internal threaded hole of the first screw.

In an embodiment of the present disclosure, the connecting portion is a threaded sleeve.

In an embodiment of the present disclosure, the second internal threaded hole and the third internal threaded hole are communicated with each other.

In an embodiment of the present disclosure, the module threaded hole is a counterbore.

In an embodiment of the present disclosure, a length of the module threaded hole is greater than or equal to a length of the first screw.

In an embodiment of the present disclosure, the module threaded hole is i-shaped.

In an embodiment of the present disclosure, the module is provided with a plurality of module threaded holes penetrating through the module.

In an embodiment of the present disclosure, a clamping surface for clamping the wrench is disposed on an outer surface of the connecting portion.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the extractor in the embodiment of the disclosure has a simple structure, can complete the rapid extraction of the module, reduces the stress concentration of the contact surface, does not damage the surface of the connected module, does not damage the connector, is simple to operate, and can greatly improve the maintainability of the product.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 shows a perspective view of an extractor in an exemplary embodiment of the present disclosure;

fig. 2 shows a perspective view of an extractor in yet another exemplary embodiment of the present disclosure;

FIG. 3 shows a schematic structural view of a first screw in an exemplary embodiment of the present disclosure;

FIG. 4 illustrates a schematic diagram of the positional relationship between the extractor and the module in an exemplary embodiment of the present disclosure;

FIG. 5 shows a schematic view of the cross-sectional A-A structure of FIG. 4;

fig. 6 is an enlarged schematic view of a portion B of fig. 5.

Reference numerals are as follows:

10. a puller; 101. a first screw; 1011. a first external thread; 1012. a first internally threaded bore; 102. a second screw; 1021. a second external thread; 103. a connecting portion; 1031. a second internally threaded bore; 1032. a third internally threaded bore; 1033. a clamping surface; 200. a module; 201. a module threaded hole; 21. a first module; 22. a second module; 23. and a third module.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of embodiments of the disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

In the present exemplary embodiment, an extractor 10 is provided, please refer to fig. 1-2, for separating two connected modules 200, the extractor 10 includes: a first screw 101, a second screw 102 and a connecting portion 103.

Specifically, the outer circumferential surface of the first screw 101 has a first external thread 1011, and the length of the first external thread 1011 may be set according to the thickness of the module 200. The outer circumferential surface of the second screw 102 has a second external thread 1021. One end of the connecting part 103 is provided with a second internal thread hole 1031 matched with the first external thread 1011, and the other end of the connecting part 103 is provided with a third internal thread hole 1032 matched with the second external thread 1021. In addition, one of the two connected modules 200 is provided with a module threaded hole 201 penetrating through the module 200, the first external thread 1011 is matched with the module threaded hole 201, and the module threaded hole 201 is used for screwing the first screw 101 of the extractor 10 into the module threaded hole 201.

Pulling out: when two modules 200 are connected, first the first screw 101 of the extractor 10 is screwed into the module threaded hole 201 provided in one of the modules 200 via the first external thread 1011, then the connection part 103 is screwed into the first screw 101, and then the second screw 102 is screwed into the connection part 103. When the module 200 needs to be pulled up, the first screw 101 of the puller 10 located in the module threaded hole 201 is screwed in, and the second screw 102 of the puller 10 is partially ejected out of the module threaded hole 201 until the two modules 200 are separated, thereby completing the pulling up work.

In this embodiment, the extractor 10 has a simple structure, can rapidly extract the module 200, reduces the stress concentration of the contact surface, does not damage the surface of the connected module 200, does not damage the connector, is simple to operate, and can greatly improve the maintainability of the product. The module 200 is suitable for the modules with limited space and no auxiliary structural members such as handles and the like.

Optionally, in some embodiments, an end surface of the first screw 101 opposite to the second screw 102 is provided with a first internally threaded hole 1012, and the second external thread 1021 of the second screw 102 is matched with the first internally threaded hole 1012 of the first screw 101. The process of screwing the extractor 10 in the module threaded hole 201 can be as follows: the first screw 101 is screwed into the module threaded hole 201, the connecting portion 103 is connected to the first screw 101, and the second screw 102 is connected to the connecting portion 103 and the first screw 101. After the first screw 101, the second screw 102 and the connecting portion 103 are connected, they are fixedly connected and relatively fixed.

Optionally, in some embodiments, the connecting portion 103 is a threaded sleeve for connecting the first screw 101 and the second screw 102.

Optionally, in some embodiments, the second internal thread hole 1031 is communicated with the third internal thread hole 1032 for the second screw 102 to enter the first internal thread hole 1012 of the first screw 101 through the third through internal thread hole 1032 for connection, so that the overall strength of the extractor 10 is higher.

Optionally, in some embodiments, the module threaded hole 201 is a counterbore, so that the extractor 10 can completely enter the module threaded hole 201, and the surface of the module 200 can be smooth.

Optionally, in some embodiments, the length of the module threaded hole 201 is greater than or equal to the length of the first screw 101, so that the module threaded hole 201 is fully inserted into the module threaded hole 201, and the surface flatness of the module 200 is ensured.

Optionally, in some embodiments, please refer to fig. 5 and 6, the module threaded hole 201 is i-shaped, and particularly, the shape of the extractor 10 is taken as a reference, so that the module threaded hole is adapted.

Optionally, in some embodiments, the module 200 is provided with a plurality of module threaded holes 201 penetrating through the module 200, for example, two, three, and the like, for pulling up different portions of the module 200.

Optionally, in some embodiments, the outer surface of the connecting portion 103 is provided with a clamping surface 1033 for clamping by a wrench, so that the wrench and the like can clamp the connecting portion 103 to rotate the connecting portion 103 to prevent loosening.

Specific dimensions of the extractor 10 and of the module threaded bore 201 are described below by way of example.

Referring to fig. 3 and 6, the size of the extractor 10 is set, and referring to fig. 4 and 5, the position relationship between the extractor 10 and the module 200 is shown. We set the dimensions of the first screw 101 to d1, d5, L1, respectively; the dimensions of the connection 103 are d2, L2, respectively; the module 200 comprises a first module 21, a second module 22 and a third module 23, the sizes of the module threaded holes 201 for mounting the extractor 10 on the first module 21 are d3, d4, L3, L4 and L5 respectively, the maximum disengagement size of the connectors between the second module 22, the third module 23 and the first module 21 is L0, and the following relations should be satisfied between the extractor 10 and the module threaded holes 201 on the first module 21:

d3≥1.1×d1

d4≥1.1×d2

L1≥L3+L4+L5

L5≥L2

L3≥L0

specifically, the above dimensions may be specifically (unit: cm): d1 ═ 6; d2 ═ 5.5; d3 ═ 7; d4 ═ 6.5; d5 ═ 4; l0 ═ 4; l1 ═ 13; l2 ═ 5; l3 ═ 4; l4 ═ 3; l5 is 6, but not limited thereto.

In addition, if a connection screw is provided between the two modules 200, when the modules 200 are pulled up, the connection screw needs to be removed first, and then the pulling-up work is performed by the pulling-up tool 10.

The first screw 101, the second screw 102 and the connecting portion 103 may be made of stainless steel 40Cr, but are not limited thereto.

It is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the foregoing description are used for indicating or indicating the orientation or positional relationship illustrated in the drawings, merely for the convenience of describing the disclosed embodiments and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be considered limiting of the disclosed embodiments.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present disclosure, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the embodiments of the present disclosure, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (9)

1. An extractor for separating two connected modules, the extractor comprising:

the outer peripheral surface of the first screw is provided with a first external thread;

a second screw having a second external thread on an outer circumferential surface thereof;

one end of the connecting part is provided with a second internal thread hole matched with the first external thread, and the other end of the connecting part is provided with a third internal thread hole matched with the second external thread;

one of the two connected modules is provided with a module threaded hole penetrating through the module, the first external thread is matched with the module threaded hole, and the module threaded hole is used for connecting a first screw of the extractor in the module threaded hole in a threaded manner.

2. The extractor of claim 1, wherein an end surface of said first screw opposite said second screw is provided with a first internally threaded bore, said second external thread of said second screw mating with said first internally threaded bore of said first screw.

3. The extractor of claim 1 wherein the coupling portion is a threaded sleeve.

4. The extractor of claim 1, wherein the second internally threaded bore and the third internally threaded bore are through.

5. The extractor of claim 1, wherein the module threaded bore is a counterbore.

6. The extractor of claim 1, wherein a length of the module threaded bore is equal to or greater than a length of the first screw.

7. The extractor of claim 1 wherein said module threaded bore is i-shaped.

8. The extractor of claim 1 wherein said block defines a plurality of said block threaded bores extending through said block.

9. The extractor according to any of the claims 1 to 8, wherein the outer surface of the connecting portion is provided with a gripping surface for the gripping of a wrench.

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