CN212838871U - Connecting structure - Google Patents

Abstract

The utility model discloses a connection structure, include: an integrally formed screw comprising a screw head and a screw shaft, the screw shaft being divided in its axial direction into a plurality of shaft sections; the plurality of rod sections are at least provided with two unthreaded rod sections which are respectively assembled with the tool connecting part and the tested product connecting part, and the plurality of rod sections are also provided with one threaded rod section which is assembled with the first locking nut; the screw head limits the tool connecting portion to move axially along the screw rod, and the first locking nut limits the tested product connecting portion to move axially along the screw rod. The utility model discloses a connection structure reduces the damage between frock and connection structure's junction.

Description

Connecting structure

Technical Field

The utility model relates to a frock technical field particularly, relates to a connection structure.

Background

In the test process of the electrical product, the tool is a common auxiliary device, and the product to be tested is assembled and fixed with the tool to test the product. In the related art, a tool and a product to be tested are usually threaded and fixed by using screws. However, when the tested product is subjected to vibration testing, the connection position of the connecting screw and the tool threaded hole is damaged due to long-time disassembly and vibration, a new tool needs to be replaced, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a connection structure, which reduces the damage between the connection points of the tool and the connection structure.

The utility model provides a connection structure, include: an integrally formed screw comprising a screw head and a screw shaft, the screw shaft being divided in its axial direction into a plurality of shaft sections;

the plurality of rod sections are at least provided with two unthreaded rod sections which are respectively assembled with the tool connecting part and the tested product connecting part, and the plurality of rod sections are also provided with one threaded rod section which is assembled with the first locking nut;

the screw head limits the tool connecting portion to move axially along the screw rod, and the first locking nut limits the tested product connecting portion to move axially along the screw rod.

As a further improvement of the present invention, the screw shaft is divided into four shaft sections, a first shaft section, a second shaft section, a third shaft section and a fourth shaft section, from the head to the tail;

the first rod section and the third rod section are arranged without threads, the first rod section is assembled with the tool connecting part, and the third rod section is assembled with the tested product connecting part;

the fourth rod segment is threadedly disposed, the fourth rod segment being assembled with the first lock nut.

As a further development of the invention, the diameters of the first rod section, the second rod section, the third rod section and the fourth rod section are gradually reduced.

As a further improvement, the tool connecting portion is provided with a through hole matched with the diameter of the first rod section, and the tested product connecting portion is provided with a through hole matched with the diameter of the third rod section.

As a further improvement of the present invention, the connecting structure further includes: and the first washer is assembled between the product connecting part to be tested and the first locking nut.

As a further improvement of the present invention, the second rod section has a threaded arrangement.

As a further improvement of the present invention, the connecting structure further includes: a second locking nut mounted on the second shaft section, the second locking nut limiting axial movement of the product under test connection along the screw shaft.

As a further improvement of the present invention, the connecting structure further includes: and the second washer is assembled between the product connecting part to be tested and the second locking nut.

As a further improvement of the utility model, the screw head is a hexagonal nut.

The utility model has the advantages that: connection structure, need not threaded connection between screw rod and the frock connecting portion, after the screw rod inserts the frock connecting portion, through the spacing locking of screwhead, the screw rod is connected closely with the frock connecting portion, can not produce the cooperation not hard up, and dismantle for a long time and the vibration can not make the junction damage of screw rod and frock connecting portion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.

Fig. 1 is an installation schematic view of a connection structure according to an embodiment of the present invention;

fig. 2 is a schematic view of a connection structure according to an embodiment of the present invention.

In the figure, the position of the upper end of the main shaft,

1. a screw head; 2. a first rod section; 3. a second rod section; 4. a third rod section; 5. a fourth rod segment; 6. a tool connecting part; 7. a tested product connecting part; 8. a first lock nut; 9. a first gasket; 10. and a second lock nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, in the description of the present invention, the terms used are for illustrative purposes only and are not intended to limit the scope of the present invention. The terms "comprises" and/or "comprising" are used to specify the presence of stated elements, steps, operations, and/or components, but do not preclude the presence or addition of one or more other elements, steps, operations, and/or components. The terms "first," "second," and the like may be used to describe various elements, not necessarily order, and not necessarily limit the elements. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified. These terms are only used to distinguish one element from another. These and/or other aspects will become apparent and those skilled in the art will more readily appreciate the description of the embodiments of the present invention presented in conjunction with the following drawings. The drawings are only for purposes of illustrating the described embodiments of the invention. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated in the present application may be employed without departing from the principles of the invention.

The embodiment of the utility model provides a connection structure, connection structure is used for the assembly of frock and product under test, as shown in fig. 1-2, connection structure includes: an integrally formed screw comprising a screw head 1 and a screw shaft, the screw shaft being divided into a plurality of shaft sections along its axial direction;

at least two unthreaded rod sections are arranged in the plurality of rod sections and are respectively assembled with the tool connecting part 6 and the tested product connecting part 7, and one threaded rod section is also assembled with the first locking nut 8;

the screw head 1 limits the tool connecting portion 6 to move axially along the screw rod, and the first locking nut 8 limits the tested product connecting portion 7 to move axially along the screw rod.

In the related art, when the connection between the tool and the tested product is realized, the tool and the tested product are usually threaded and fixed by using screws, and the tested product is removed after the test is finished. The long-time dismantlement can make the frock screw hole grow gradually, and it is not hard up that the cooperation appears in being connected between measured product and the frock, leads to the test inaccurate. And the screw thread is easy to damage after being disassembled for a long time, which is not beneficial to the subsequent installation test of the tested product. In addition, in the vibration test process, the connection part of the connecting screw and the tool threaded hole is damaged due to long-time vibration, a new tool needs to be replaced, and the cost is increased. Connection structure, need not threaded connection between screw rod and the frock connecting portion 6, after the screw rod inserts frock connecting portion 6, through 1 spacing locking of screwhead, the screw rod is closely connected with frock connecting portion 6, can not produce the cooperation not hard up, and dismantle for a long time and the vibration can not make the junction of screw rod and frock connecting portion 6 damage.

In an alternative embodiment, the screw shaft is divided into four shaft sections, a first shaft section 2, a second shaft section 3, a third shaft section 4 and a fourth shaft section 5, from the head to the tail;

the first rod section 2 and the third rod section 4 are arranged without threads, the first rod section 2 is assembled with the tool connecting part 6, and the third rod section 4 is assembled with the tested product connecting part 7;

said fourth rod segment 5 is provided with a thread, said fourth rod segment 5 being assembled with said first locking nut 8.

In an alternative embodiment, the first rod section 2, the second rod section 3, the third rod section 4 and the fourth rod section 5 have a decreasing diameter.

The utility model discloses with the design of screw rod subregion section, the different installation site of every pole district section adaptation. Alternatively, the diameter of each rod segment may be arranged differently, for example four rod segments of decreasing diameter from the head to the tail of the rod. The first rod section 2 with the largest diameter is assembled with the tool connecting portion 6, the first rod section and the tool connecting portion are connected more stably and can bear larger force, the strength is higher, and damage to the connecting portion in the vibration process is further reduced. Due to the fact that the two adjacent rod sections have different diameters, a protruding step surface extends outwards, and each installation part can be further locked by the corresponding step surface in the assembling process, and the connection tightness is enhanced. In addition, the diameters of the rod sections are gradually reduced, so that the processing is convenient, and the cost is reduced.

In an optional implementation manner, a through hole matched with the diameter of the first rod section 2 is formed in the tool connecting portion 6, and a through hole matched with the diameter of the third rod section 4 is formed in the tested product connecting portion 7.

The through-hole do not set up the screw thread, frock connecting portion 6 forms the joint with first pole district section 2, is surveyed product connecting portion 7 and forms the joint with third pole district section 4. The joint can make on the one hand and connect closely, can not produce the cooperation not hard up, and on the other hand vibrates for a long time and can not make the junction of screw pole and frock connecting portion 6 damage.

In an alternative embodiment, the connecting structure further comprises: and a first washer 9 fitted between the product-under-test connection portion 7 and the first lock nut 8.

Wherein the first lock nut 8 is fitted on the fourth rod section 5, both provided with matching threads, e.g. the fourth rod section 5 is provided with an external thread and the first lock nut 8 is provided with a matching internal thread. In the vibration test, a thread gap may be generated between the first locking nut 8 and the fourth rod section 5 due to long-time vibration, and then a gap is generated between the first locking nut 8 and the tested product connecting part 7, so that the tested product connecting part 7 cannot be locked, and the screw rod is prone to damage due to inaccurate vibration test and long-time vibration. Install a first packing ring 9 additional between product connecting portion 7 and the first lock nut 8 under test, rubber packing ring for example, can be to reducing the vibration test in-process on the one hand, the influence of vibrational force to the screw rod, on the other hand can realize the locking to product connecting portion 7 under test.

In an alternative embodiment, the second rod section 3 is provided with a thread.

In an alternative embodiment, the connecting structure further comprises: a second lock nut 10 fitted to the second shank segment 3, the second lock nut 10 limiting axial movement of the product connection under test 7 along the shank.

In an alternative embodiment, the connecting structure further comprises: and a second washer fitted between the product-under-test connection part 7 and the second lock nut 10.

The utility model discloses a product connecting portion 7 is surveyed and is installed in third pole district section 4, has carried out the locking to one side of being surveyed product connecting portion 7 through set up first lock nut 8 in fourth pole district section 5. The locking of the other side of the connecting part 7 of the product to be tested can be realized by mounting the second lock nut 10 on the other side. After the two ends are locked, the connection of the product connecting parts 7 to be tested is more stable, the test is more accurate, and the influence of vibration on the product can be reduced.

Wherein the second lock nut 10 is fitted on the second rod section 3, both provided with matching threads, for example the second rod section 3 is provided with an external thread and the second lock nut 10 is provided with a matching internal thread. In the vibration test, a thread gap may be generated between the second lock nut 10 and the second rod section 3 due to long-term vibration, and then a gap is generated between the second lock nut 10 and the tested product connecting part 7, so that the tested product connecting part 7 cannot be locked, and the screw rod is easily damaged due to inaccurate vibration test and long-term vibration. Install a second packing ring additional between product connecting portion 7 and second lock nut 10 under test, rubber packing ring for example, can be to reducing the vibration test in-process on the one hand, the influence of vibrational force to the screw rod, on the other hand can realize the locking to product connecting portion 7 under test.

In an alternative embodiment, the screw head 1 is a hexagonal nut.

The screw head 1 is designed to be hexagonal, on one hand, the tool connecting portion 6 is limited through the screw head 1, on the other hand, the assembly of the connecting structure can be facilitated, and for example, the screw head 1 is further screwed in the through hole of the tool connecting portion 6 through a wrench.

In an alternative embodiment, the screw is made of stainless steel.

Connection structure, adopt the higher stainless steel of intensity to carry out integration processing, the effectual frock of having connected has guaranteed the whole integrality of frock with surveyed the product, can not lead to damaging because of the vibration and the impulse work of being surveyed the product, the effectual spoilage that reduces the frock.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Furthermore, those of ordinary skill in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

It will be understood by those skilled in the art that while the invention has been described with reference to exemplary embodiments, various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. A connecting structure, characterized by comprising: an integrally formed screw comprising a screw head (1) and a screw shank, the screw shank being divided in its axial direction into a plurality of shank segments;

wherein, at least two unthreaded rod sections are arranged in the plurality of rod sections and are respectively assembled with the tool connecting part (6) and the tested product connecting part (7), and the plurality of rod sections also comprise a threaded rod section and are assembled with the first locking nut (8);

the screw head (1) limits the tool connecting portion (6) to move axially along the screw rod, and the first locking nut (8) limits the tested product connecting portion (7) to move axially along the screw rod.

2. The connection according to claim 1, wherein the screw shaft is divided into four shaft sections, a first shaft section (2), a second shaft section (3), a third shaft section (4) and a fourth shaft section (5), from the head to the tail;

wherein the first rod section (2) and the third rod section (4) are arranged without threads, the first rod section (2) is assembled with the tool connecting part (6), and the third rod section (4) is assembled with the tested product connecting part (7);

the fourth rod section (5) is provided with a thread, and the fourth rod section (5) is assembled with the first locking nut (8).

3. The connection according to claim 2, wherein the first rod section (2), the second rod section (3), the third rod section (4) and the fourth rod section (5) are of decreasing diameter.

4. The connecting structure of claim 2, wherein the tool connecting portion (6) is provided with a through hole matching the diameter of the first rod section (2), and the measured product connecting portion (7) is provided with a through hole matching the diameter of the third rod section (4).

5. The connecting structure according to claim 1, wherein the connecting structure further comprises: a first washer (9) fitted between the product connection portion (7) to be tested and the first lock nut (8).

6. The connection according to claim 2, wherein the second rod section (3) is provided with a thread.

7. The connecting structure as set forth in claim 6, wherein the connecting structure further comprises: a second locking nut (10) fitted on the second shank section (3), the second locking nut (10) limiting the axial movement of the product connection under test (7) along the shank.

8. The connecting structure as set forth in claim 7, wherein the connecting structure further comprises: a second washer fitted between the product connection portion (7) to be tested and the second lock nut (10).

9. The connection according to claim 1, wherein the screw head (1) is a hexagonal nut.

10. The coupling structure as claimed in claim 1, wherein the screw is made of stainless steel.

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