CN215806933U

CN215806933U - Quick pressure testing device for clamping and pressing type pipe fittings

Info

Publication number: CN215806933U
Application number: CN202120678013.XU
Authority: CN
Inventors: 袁雪峰; 孙静琪; 车冬升; 胡国栋
Original assignee: Jiangsu Lingjia Technology Co ltd
Current assignee: Jiangsu Lingjia Technology Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-02-11
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a rapid pressure test device for a clamping-pressing type pipe fitting, which comprises a first component, a second component and a third component, wherein the first component, the second component and the third component are all hollow tubular structures; the two ends of the first component are provided with socket sections, the middle of the first component is provided with a middle section, and the middle section is connected with the socket sections through two connecting sections; the second component is provided with a clamping section and a thread section; the third part comprises an inserting section, a left side thread section, a protruding section and a right side thread section in sequence. Through above-mentioned structure, the segmentation pressure testing problem in the present card pressure formula pipeline product has been solved, has effectively avoided long distance pipeline then can't the pressure testing or need install the hickey to the complicated technology of excision after the pressure testing.

Description

Quick pressure testing device for clamping and pressing type pipe fittings

Technical Field

The utility model relates to the field of quick connection and installation of casting pipe fittings, in particular to a quick pressure test device for a clamping-pressing type pipe fitting.

Background

In some casting enterprises, molten iron smelted in the casting process needs to be conveyed from a kiln to another working procedure, so that various pipe fittings are required to be connected, but some pipe fittings are loosened in the connecting process, unsafe factors are caused, and the production efficiency of the enterprises is delayed.

The clamping and pressing type connecting pipe fitting is a connecting pipe fitting matched with a water supply pipeline and used, and compared with a hot melting connecting pipe fitting or a threaded connecting pipe fitting, the clamping and pressing type connecting pipe fitting has the advantages of simple structure, quickness in installation and firmness in connection, so that the clamping and pressing type connecting pipe fitting is widely applied. However, in actual use and testing, the following problems still remain with the currently used pipe: 1. when the water supply pipeline pipe is inserted, the insertion condition can not be clearly observed; 2. When the pipe fitting is in compression joint with a water supply pipeline pipe, the pipe fitting is not easy to break, so that an operator is not easy to check whether compression joint operation is performed or not; 3. when the pipe is in compression joint with a water supply pipeline, a compression joint tool (such as a circular ring-shaped compression clamp) is easy to slip and run, so that the operation efficiency is low; 4 the pressure testing needs the pipe fitting to have the hickey to carry out, if long distance pipeline then can't the pressure testing or need install the hickey to the excision after the pressure testing.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems in the prior art, the utility model provides a quick pressure test device for a clamping and pressing type pipe fitting, which is realized by the following steps:

a rapid pressure test device for a clamping and pressing type pipe fitting comprises a first component, a second component and a third component, wherein the first component, the second component and the third component are all hollow tubular structures; the method is characterized in that: the first component is of a symmetrical structure along the cross section in the middle, the two ends of the first component are provided with socket sections, the middle of the first component is provided with a middle section, and the middle section is connected with the socket sections through two connecting sections; the second component is provided with a clamping section and a threaded section, an annular groove is formed in the clamping section, and internal threads are formed on the inner circumferential surface of the threaded section; the third part comprises an insertion section, a left threaded section, a protruding section and a right threaded section in sequence; the outer circumferential surface of the insertion section is a smooth section, a groove is formed in the outer circumferential surface of the tail end of the smooth section, and a sealing ring is arranged in the groove; and a second external thread is arranged on the outer circumferential surface of the right side thread section.

As a preferred embodiment, it is preferred that: the maximum outer diameter of the groove bottom of the annular groove is larger than the outer diameter of the internal thread; therefore, when the inserting section extends into the threaded section, the inserting section can smoothly penetrate through the threaded section and the socket section and extend into the connecting section to realize sealing with the inside of the connecting section, and because the protruding part of the socket section is arranged in the groove, the matching relation of the socket section is not only ensured, but also the strength of the socket section is not changed, the fracture phenomenon of the socket section and the groove in matching is avoided, in addition, the maximum outer diameter of the groove bottom of the annular groove is larger than the outer diameter of the internal thread, when the sealing ring is inserted along with the third component, the space in the pipe cavity is vacated by the groove, and therefore, the sealing ring can be effectively prevented from falling off in the installation process.

As a preferred embodiment, it is preferred that: the outer periphery of screw thread section on be provided with first portion of exerting oneself, first portion of exerting oneself can also be regular polygon structure for bar antiskid line structure, when being bar antiskid line structure, the line of antiskid line be parallel with the axis direction of second part, through first portion of exerting oneself, can effectively improve the flexibility of card pressure formula pipe fitting pressure testing device when the equipment, when the installation, just can provide great knob moment through very little radial pressure, under the special circumstances, also can direct manual equipment or demolish the device, improved the convenience of device.

As a preferred embodiment, it is preferred that: the internal diameter of the first external thread of left side screw thread section be greater than the external diameter of smooth section, because the sealing washer is made for the elastic compressible rubber material usually, for example can be O type sealing washer, realized the good sealed relation of sealing washer with linkage segment like this, also guaranteed first external thread with the good spiro union relation of internal thread to as the embodiment of preferred, the sealing washer can be trapezoidal sealing washer, the shorter base of trapezoidal sealing washer be located the end side of smooth section, when the third part is inserting first part in-process, trapezoidal sealing washer can cooperate the installation better, avoids droing of sealing washer, and the sealed effect of tip is also more superior.

As a preferred embodiment, it is preferred that: when the sealing ring is placed in the groove, the outer diameter of the sealing ring is larger than the thread outer diameter of the first external thread; this can further improve the sealing performance of the seal ring.

As a preferred embodiment, it is preferred that: the outer circumference of the convex section is provided with a second force application part,

the second portion of exerting oneself can also be regular polygon structure for bar antiskid line structure, when being bar antiskid line structure, the line of antiskid line be parallel with the axis direction of third part, equally, can effectively improve the flexibility of card pressure formula pipe fitting pressure testing device when the equipment, when the installation, just can provide great knob moment through very little radial pressure, under special circumstances, also can directly manual equipment or demolish the device, improved the convenience of device.

As a preferred embodiment, it is preferred that: the middle section with the linkage segment between be provided with the changeover portion, the changeover portion be toper tubular structure, the tapered changeover portion can avoid the insertion section in the process of inserting, the left side displacement does not retrain, and leads to the insertion section screw in too much, causes first external screw thread with the internal thread can not demonstrate good threaded connection relation.

Has the advantages that:

(1) the transition section is arranged between the middle section and the connecting section and is of a conical tubular structure, so that the transition section can prevent the insertion section from being screwed too much due to the fact that the left side displacement of the insertion section is not restricted in the insertion process, and the problem that the insertion depth is difficult to control is effectively solved;

(2) the transverse displacement of the first component, the second component and the third component is limited by the matching of the socket section of the first component 1 and the annular groove of the second component, and the insertion section of the third component is inserted into the connecting section at the inner side of the socket section, so that the drawing resistance effect is achieved;

(2) the traditional mode needs the pipe fitting to have the hickey just can carry out the pressure testing, if long distance pipeline then can't the pressure testing or need install the hickey to the segmentation pressure testing problem in the present card pressure formula pipeline product has been solved in the excision behind the pressure testing.

Drawings

FIG. 1 is a schematic structural view of a first part of the present invention;

FIG. 2 is a cross-sectional view of a second portion having a stripe-shaped non-slip pattern;

FIG. 3 is an isometric view of a second portion having a polygonal force application portion;

FIG. 4 is a cross-sectional view of a third portion having a polygonal force application portion;

FIG. 5 is an isometric view of a third portion having a polygonal force application portion.

Reference numerals: the bearing comprises a first component 1, a socket section 1.1, a connecting section 1.2, a middle section 1.3, a second component 2, a clamping section 2.1, a thread section 2.2, an annular groove 2.3, an internal thread 2.4, a first force exerting part 2.5, a third component 3, an inserting section 3.1, a left thread section 3.2, a protruding section 3.3, a right thread section 3.4, a first external thread 3.5, a second external thread 3.6, a groove 3.7, a sealing ring 3.8 and a second force exerting part 3.9.

Detailed Description

The technical solutions in the present invention will be described in detail below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in fig. 1-5, a quick pressure testing device for a clamp-press type pipe fitting comprises a first component 1, a second component 2 and a third component 3, wherein the first component 1, the second component 2 and the third component 3 are all hollow tubular structures; the method is characterized in that: the first component 1 is of a symmetrical structure along the cross section in the middle, the two ends of the first component 1 are provided with socket sections 1.1, the middle of the first component 1 is provided with a middle section 1.3, and the middle section 1.3 is connected with the socket sections 1.1 through two connecting sections 1.2; the second component 2 is provided with a clamping section 2.1 and a thread section 2.2, an annular groove 2.3 is formed in the clamping section 2.1, and an internal thread 2.4 is formed in the inner circumferential surface of the thread section 2.2; the third part 3 sequentially comprises an insertion section 3.1, a left threaded section 3.2, a protruding section 3.3 and a right threaded section 3.4; the outer circumferential surface of the insertion section 3.1 is a smooth section, a groove 3.7 is arranged on the outer circumferential surface at the tail end of the smooth section, and a sealing ring 3.8 is arranged in the groove 3.7; a second external thread 3.6 is arranged on the outer circumferential surface of the right side thread section 3.4; the maximum outer diameter of the groove bottom of the annular groove 2.3 is larger than the outer diameter of the internal thread 2.4; a first force application part 2.5 is arranged on the outer circumferential surface of the threaded section 2.2, and the grains of the first anti-skid grains are parallel to the axial direction of the second component 2; the inner diameter of the first external thread 3.5 of the left side thread section 3.2 is larger than the outer diameter of the smooth section; when the sealing ring 3.8 is placed in the groove 3.7, the outer diameter of the sealing ring 3.8 is larger than the thread outer diameter of the first external thread 3.5; this further improves the sealing properties of the sealing ring 3.8; a second force application part 3.9 is arranged on the outer circumferential surface of the convex section 3.3, and the grains of the anti-skid grains are parallel to the axial direction of the third component 3; a transition section is arranged between the middle section 1.3 and the connecting section 1.2, and the transition section is of a conical tubular structure.

The working principle is as follows: put into joint section 2.1 with bell section 1.1 of card pressure formula pipe fitting, again with first external screw thread 3.5 and internal thread 2.4 through threaded connection second part 2 and third part 3, sealing washer 3.8 in the third part gets into the inside of first part bell section 1.1 this moment, and compression deformation after the atress plays sealed effect. After the assembly is completed, the socket section of the first component 1 and the annular groove 2.3 of the second component 2 are matched to limit the transverse displacement of the first component 1, the second component 2 and the third component 3, and the insertion section 3.1 of the third component 3 is inserted into the connecting section 1.2 on the inner side of the socket section 1.1, so that the drawing resistance effect is achieved.

Various modifications and changes may be made to the present invention by those skilled in the art. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.

Claims

1. A rapid pressure test device for a clamping and pressing type pipe fitting comprises a first component (1), a second component (2) and a third component (3), wherein the first component (1), the second component (2) and the third component (3) are all hollow tubular structures; the method is characterized in that: the first component (1) is of a symmetrical structure along the cross section in the middle, the two ends of the first component (1) are provided with socket sections (1.1), the middle of the first component (1) is provided with a middle section (1.3), and the middle section (1.3) is connected with the socket sections (1.1) through two connecting sections (1.2); the second component (2) is provided with a clamping section (2.1) and a threaded section (2.2), an annular groove (2.3) is formed in the clamping section (2.1), and an internal thread (2.4) is formed in the inner circumferential surface of the threaded section (2.2); the third component (3) sequentially comprises an insertion section (3.1), a left threaded section (3.2), a protruding section (3.3) and a right threaded section (3.4); the outer circumferential surface of the insertion section (3.1) is a smooth section, a groove (3.7) is formed in the outer circumferential surface of the tail end of the smooth section, and a sealing ring (3.8) is arranged in the groove (3.7); and a second external thread (3.6) is arranged on the outer circumferential surface of the right side thread section (3.4).

2. The rapid pressure testing device for clamp-press type pipe fittings according to claim 1, which is characterized in that: the maximum outer diameter of the groove bottom of the annular groove (2.3) is larger than the outer diameter of the internal thread (2.4).

3. The rapid pressure testing device for clamp-press type pipe fittings according to claim 1, which is characterized in that: the outer circumferential surface of the thread section (2.2) is provided with a first force application part (2.5).

4. The rapid pressure testing device for clamp-press type pipe fittings according to claim 3, characterized in that: the first force applying part is a strip-shaped anti-skid line or a regular polygon structure; when the first force applying part is a strip-shaped anti-slip line, the line of the first force applying part is parallel to the axis direction of the second component (2).

5. The rapid pressure testing device for clamp-press type pipe fittings according to any one of claims 1 to 4, characterized in that: the thread inner diameter of the first external thread (3.5) of the left side thread section (3.2) is larger than the outer diameter of the smooth section.

6. The rapid pressure testing device for clamp-press type pipe fittings according to claim 4, which is characterized in that: when the sealing ring (3.8) is placed in the groove (3.7), the outer diameter of the sealing ring (3.8) is larger than the thread outer diameter of the first external thread (3.5); this further improves the sealing performance of the sealing ring (3.8).

7. The rapid pressure testing device for clamp-press type pipe fittings according to any one of claims 1 to 4, characterized in that: and a second force application part (3.9) is arranged on the outer circumferential surface of the convex section (3.3).

8. The rapid pressure testing device for clamp-press type pipe fittings according to claim 7, which is characterized in that: the second force applying part is a strip-shaped anti-skid line or a regular polygon structure; when the second force application part is a strip-shaped anti-slip line, the line of the strip-shaped anti-slip line is parallel to the axis direction of the third component (3).

9. The rapid pressure testing device for clamp-press type pipe fittings according to claim 1, which is characterized in that: a transition section is arranged between the middle section (1.3) and the connecting section (1.2), and the transition section is of a conical tubular structure.

10. The rapid pressure testing device for clamp-press type pipe fittings according to any one of claims 1 to 4, characterized in that: the sealing ring (3.8) is an O-shaped sealing ring or a trapezoidal sealing ring.