CN212340256U

CN212340256U - Change-over plug

Info

Publication number: CN212340256U
Application number: CN202021521870.0U
Authority: CN
Inventors: 路振华; 段建民
Original assignee: Tianjin Measuring Instrument Co ltd
Current assignee: Tianjin Measuring Instrument Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-01-12
Anticipated expiration: 2030-07-28

Abstract

The utility model provides a changeover plug, include: the clamping device comprises a tubular structure, a clamping table and an elastic clamping structure; the tubular structure comprises a hollow tubular structure body, the top of the tubular structure body is an upper joint end, the bottom of the tubular structure body is a lower connecting joint end, the clamping table is annularly arranged on the periphery of the tubular structure body, one side surface of the clamping table is transversely provided with an extrusion cavity, and the other side surface of the clamping table is provided with a waist-shaped hole communicated with the extrusion cavity; the elastic clamping structure comprises a spring, a limiting nut, a pressing head, a small head section and a large head section, a clamping hole is formed in the inner wall of the extrusion cavity, the extrusion cavity is communicated with the hollow area of the tubular structure body through the clamping hole, and the large head section penetrates through the clamping hole and extends into the hollow area when the elastic clamping structure is in a natural state; when the elastic clamping structure is in a pressing state, the large head section is positioned at the bottom of the extrusion cavity, and the large head section and the small head section do not enter the hollow area. The utility model discloses can be fast, steadily come the card to connect and turn into 5/8 "screwed joint.

Description

Change-over plug

Technical Field

The utility model relates to a surveying instrument technical field especially indicates a changeover plug.

Background

The laika prism base is provided with a laika joint A, the specific structure is shown in fig. 1 and fig. 2, the upper part A1 of the laika prism base is of a solid cylindrical structure, the peripheral surface of the A1 is annularly provided with a groove A11 with an arc-shaped surface, the lower part A2 of the laika prism base is of a hollow cylindrical structure with threads on the inner surface, and the whole laika joint A is of an integrated structure. Since a plurality of parts need 5/8 'connectors for matching connection, a conversion plug capable of quickly converting the come card connector into the 5/8' connector needs to be designed.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of above prior art, the utility model provides a changeover plug.

The technical scheme of the utility model is realized like this:

an adapter plug for converting a come adapter into an 5/8 adapter, the come adapter including a come adapter upper part and a come adapter lower part, the come adapter upper part being provided with an upper ring being an arc-shaped groove, comprising: the clamping device comprises a tubular structure, a clamping table and an elastic clamping structure; the tubular structure comprises a hollow tubular structure body, the top of the tubular structure body is an upper joint end, the bottom of the tubular structure body is a lower connecting joint end, the upper joint end is an 5/8' joint, a sealing groove is arranged below the upper joint end, and the tubular structure, the upper joint end and the lower connecting joint end are of an integrated structure; the clamping table is annularly arranged on the periphery of the tubular structure body, an extrusion cavity is transversely formed in one side face of the clamping table, a waist-shaped hole communicated with the extrusion cavity is formed in the other side face, close to the side face, of the clamping table, and the length direction of the waist-shaped hole is consistent with that of the extrusion cavity; the elastic clamping structure comprises a spring, a limiting nut and a pressing head, a small head section and a large head section which are sequentially arranged, the surface of the large head section is matched with the surface structure of the groove, a holding groove is formed in the end face of the free end of the large head section, one end of the spring is fixed in the holding groove, the other end of the spring is fixedly connected with the bottom end of the extrusion cavity, the limiting nut is fixed on the small head section, a clamping hole is formed in the inner wall of the extrusion cavity, the extrusion cavity is communicated with the hollow area of the tubular structure body through the clamping hole, and when the elastic clamping structure is in a natural state, the large head section penetrates through the clamping hole and extends into the hollow; when the elastic clamping structure is in a pressing state, the large head section is located at the bottom of the extrusion cavity, and the large head section and the small head section do not enter the hollow area, and the elastic clamping structure is limited by moving left and right in the waist-shaped hole through the limiting nut in the whole pressing process.

Preferably, the device further comprises a limiting sleeve, and the limiting sleeve is fixed in the tubular structure body.

Further preferably, a seal ring is arranged in the seal groove.

More preferably, the tubular structure and the clamping platform are integrally formed, and the clamping platform is of a cubic structure with a square cross section.

Most preferably, the lower connection end is equal in outer diameter to the lower part of the come card connector.

The utility model discloses simple structure, design science, firm in connection can be fast, steadily will come the card to connect and turn into 5/8 "screwed joint.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a first longitudinal cross-sectional view of FIG. 1;

fig. 3 is a longitudinal sectional view two of fig. 1.

In the figure: A. a Leica joint; a1, come card joint upper part; a11, a groove; a2, lower part of come card joint; 1. a tubular structure; 11. an upper connector end; 12. a sealing groove; 13. the lower connecting end; 2. a limiting sleeve; 3. clamping a platform; 31. a kidney-shaped hole; 32. a spring; 33. a limit nut; 4. an elastic clamping structure; 41. a pressing head; 42. a small head section; 43. a large head section.

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.

As shown collectively in fig. 1-3: a conversion plug for converting a come adapter A into an 5/8' adapter, the come adapter A comprising a come adapter upper A1 and a come adapter lower A2, the come adapter upper A1 being provided with an annular curved groove A11, comprising: the device comprises a tubular structure 1, a clamping table 3 and an elastic clamping structure 4; the tubular structure 1 comprises a hollow tubular structure body, the top of the tubular structure body is an upper joint end 11, the bottom of the tubular structure body is a lower joint end 13, the upper joint end 11 is an 5/8' joint, a sealing groove 12 is arranged below the upper joint end 11, and the tubular structure, the upper joint end 11 and the lower joint end 13 are of an integrated structure; the clamping table 3 is annularly arranged on the periphery of the tubular structure body, an extrusion cavity is transversely formed in one side face of the clamping table 3, a waist-shaped hole 31 communicated with the extrusion cavity is formed in the other side face, close to the side face, of the clamping table 3, and the length direction of the waist-shaped hole 31 is consistent with that of the extrusion cavity; the elastic clamping structure 4 comprises a spring 32, a limiting nut 33, a pressing head 41, a small head section 42 and a large head section 43 which are sequentially arranged, the surface of the large head section 43 is matched with the surface structure of the groove A11, a placing groove is formed in the end face of the free end of the large head section 43, one end of the spring 32 is fixed in the placing groove, the other end of the spring is fixedly connected with the bottom end of the extrusion cavity, the limiting nut 33 is fixed on the small head section 42, a clamping hole is formed in the inner wall of the extrusion cavity, the extrusion cavity is communicated with the hollow area of the tubular structure body through the clamping hole, and when the elastic clamping structure 4 is in a natural state, the large head section 43 penetrates through the clamping hole to extend into the hollow area to be used for clamping; when the elastic clamping structure 4 is in a pressing state, the large head section 43 is positioned at the bottom of the extrusion cavity, and the large head section 43 and the small head section 42 do not enter the hollow area; in order to improve the stability of connection, still include stop collar 2, stop collar 2 is fixed in tubular structure is originally internal, during the connection, press head 41 to extreme position, come card joint upper portion A1 to stretch into down in the connector end 13 and by the bottom top of stop collar 2 tight, loosen press head 41 back big head section 43 and stretch into the joint downthehole and paste the surface of tight recess A11, whole pressing in-process elasticity joint structure 4 is spacing through the left and right removal of stop nut 33 in waist type hole 31.

Preferably, a seal ring is provided in the seal groove 12 in order to improve the tightness of the connection. In order to facilitate the processing and improve the overall stability of the utility model, the tubular structure 1 and the clamping table 3 are integrally formed, the clamping table 3 is a cubic structure with a square cross section, and the lower connecting head end 13 is equal to the come card connector lower part A2 outer diameter.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A conversion plug for converting a come adapter (a) into an 5/8 "adapter, the come adapter (a) comprising a come adapter upper part (a1) and a come adapter lower part (a2), the come adapter upper part (a1) being provided with an annular groove (a11) which is curved, characterized in that: the method comprises the following steps: the clamping device comprises a tubular structure (1), a clamping table (3) and an elastic clamping structure (4); the tubular structure (1) comprises a hollow tubular structure body, the top of the tubular structure body is an upper joint end (11), the bottom of the tubular structure body is a lower connecting joint end (13), the upper joint end (11) is an 5/8' joint, a sealing groove (12) is arranged below the upper joint end (11), and the tubular structure, the upper joint end (11) and the lower connecting joint end (13) are of an integrated structure; the clamping table (3) is arranged on the periphery of the tubular structure body in a surrounding mode, an extrusion cavity is transversely formed in one side face of the clamping table (3), a waist-shaped hole (31) communicated with the extrusion cavity is formed in the other side face, close to the side face, of the clamping table (3), and the length direction of the waist-shaped hole (31) is consistent with the length direction of the extrusion cavity; the elastic clamping structure (4) comprises a spring (32), a limiting nut (33), a pressing head (41), a small head section (42) and a large head section (43), the pressing head (41), the small head section (42) and the large head section (43) are sequentially arranged, the surface of the large head section (43) is matched with the surface structure of the groove (A11), a placing groove is formed in the end surface of the free end of the large head section (43), one end of the spring (32) is fixed in the placing groove, the other end of the spring is fixedly connected with the bottom end of the extrusion cavity, the limiting nut (33) is fixed on the small head section (42), a clamping hole is formed in the inner wall of the extrusion cavity, the extrusion cavity is communicated with the hollow area of the tubular structure body through the clamping hole, and when the elastic clamping structure (4) is in a natural state, the large head section (43) penetrates; when elasticity joint structure (4) were in the state of pressing, big head section (43) were located extrusion chamber bottom and big head section (43) and little head section (42) all do not get into the hollow space area, whole pressing in-process elasticity joint structure (4) and through stop nut (33) in waist type hole (31) left and right removal carry on spacingly.

2. The transition plug defined in claim 1, wherein: the limiting sleeve (2) is further included, and the limiting sleeve (2) is fixed in the tubular structure body.

3. The transition plug defined in claim 1, wherein: a sealing ring is arranged in the sealing groove (12).

4. The conversion plug according to any one of claims 1 to 3, wherein: the tubular structure (1) and the clamping table (3) are integrally formed, and the clamping table (3) is of a cubic structure with a square cross section.

5. The transition plug defined in claim 4, wherein: the lower connecting head end (13) has the same outer diameter as the lower part (A2) of the come card connector.