CN205173786U - Three leaf reducing oil filter piecing devices - Google Patents

Abstract

The utility model discloses a joint device of a three-leaf variable-diameter oil filter, which comprises a pipe head and an elastic locking mechanism arranged at both ends of the pipe head. The elastic locking mechanism includes an elastic chuck, a chuck seat and a pressing cover , the elastic collet is arranged in the conical hole of the collet seat, the pressing cover is connected with the collet seat, and the ring-shaped protrusion is arranged in the compressing cover and is connected with the elastic collet Matching; the utility model adopts an elastic pipe head, which can be initially sleeved at the port of the pipeline to be connected, and then a sealing ring is set in the annular sealing groove. Since the ring-shaped protrusion is formed in the sealing groove, it can be pressed tightly During the process, a tighter annular sealing band can be formed here, thereby achieving a stable sealing effect and ensuring the stability of the connection, which is worthy of application and promotion.

Description

A joint device for a three-leaf variable-diameter oil filter

technical field

The utility model relates to the technical field of hose connection parts, in particular to a joint device for a three-leaf oil filter with variable diameter.

Background technique

In the daily work of electric power operation, it is often necessary to connect liquid infusion pipelines or other gas pipelines with different diameters. If the model is not listed or the joint is used up, it is often necessary to purchase it, which wastes a lot of time, and also makes the redundant joint become waste, resulting in a great waste of resources. A variable diameter joint is disclosed in CN104421550A, including large A diameter section, a small diameter section, and a variable diameter section connected between the large diameter section and the small diameter section, the variable diameter section is a tapered pipe, and a first An annular groove, the thickness of the first annular groove is equivalent to the wall thickness of the large rubber hose to be connected, the bottom of the first annular groove is provided with a first sealing gasket, and the inner and outer walls of the small diameter section are provided There is a second annular groove, the thickness of the second annular groove is equivalent to the wall thickness of the small rubber hose to be connected, and the bottom of the second annular groove is provided with a second sealing gasket. However, its fastening effect is poor, and a better locking effect cannot be obtained; a reduced-diameter joint is disclosed in CN204187163U, which includes: a reduced-diameter fastening part; The first threaded part connected; the second threaded part arranged at the other end of the variable-diameter fastening part; the third threaded part arranged coaxially with the second threaded part and having a smaller pipe diameter than the second threaded part . Although it achieves a better connection effect, its complex structure is still limited by the caliber of the connecting parts. However, there is no technical solution to solve this problem in the current prior art.

Utility model content

The problem to be solved by the utility model is to provide a joint device of a three-leaf variable-diameter oil filter, which can not only adapt to the connection of different pipe diameters, but also has a simple structure and easy operation.

In order to achieve the above purpose, the adopted technical scheme is:

A joint device for a three-leaf variable-diameter oil filter, comprising a pipe head and an elastic locking mechanism arranged at both ends of the pipe head. The elastic locking mechanism includes an elastic chuck, a chuck seat and a compression cover. The elastic clip The head is arranged in the conical hole of the collet seat, the pressing cover is connected with the collet seat, and the ring-shaped protrusion is arranged in the pressing cover and matched with the elastic collet.

The pipe head includes an upper large diameter section, a small diameter section and a variable diameter section connecting the large diameter section and the small diameter section, the variable diameter section is a tapered pipe, and the large diameter section and the small diameter section The outer surfaces are all provided with annular sealing grooves.

An elastic sealing ring is arranged in the annular sealing groove.

The middle of the elastic collet is a circular through hole and the outside is a conical shape matched with the conical hole.

The pipe head is made of polytetrafluoroethylene.

A steel wire mesh sleeve is arranged outside the diameter reducing section.

The utility model adopts elastic polytetrafluoroethylene as the pipe head. Due to its good elasticity and toughness, it can adapt to the needs of pipe connections with different pipe diameters within a certain range; If the oil phenomenon occurs, an annular sealing groove is set on the outer surface of the large-diameter section and the small-diameter section, and an elastic sealing ring is arranged in the annular sealing groove; the elastic sealing ring used is an O-ring or a spring-like sealing ring, which can Under the pressure of the collet, it can further play the effect of sealing the pipe head; in order to ensure the strength of the pipe head, a steel wire mesh sleeve is set at the reducing section of the pipe head, which can further improve the rigidity of the pipe head. The elastic collet used is The common elastic collet can change the inner diameter of the elastic collet within a certain range, so that it can adapt to a certain range of pipe diameters; reduce the need to design a variety of connection joints between different sizes of pipe diameters due to pipe size problems, so that The waste of resources caused and the disadvantages of requiring a large number of conversion joints.

In addition, the elastic locking mechanism adopted includes a collet seat, and a tapered hole is set in the collet seat, which can match the shape of the elastic collet. The ring-shaped protrusion of the elastic collet plays a role in tightening the elastic collet, and moves it to the direction of the small diameter opening in the collet seat, thereby compressing the diameter of the middle of the elastic collet to become smaller, and tightly pressing the pipe head on the pipe, ensuring Tightness; and the middle of the compression cover is provided with a round hole, and the pipe is passed through it.

The utility model adopts an elastic pipe head, which can be preliminarily sleeved at the port of the pipeline to be connected, and then a sealing ring is arranged in the annular sealing groove. Since an annular protrusion is formed in the sealing groove, it can be used during the pressing process. A tighter annular sealing band is formed here, thereby achieving a stable sealing effect and ensuring the stability of the connection, which is worthy of application and promotion.

Description of drawings

Below in conjunction with accompanying drawing, the utility model will be further described:

Fig. 1 is a schematic view of the side structure of the utility model;

Fig. 2 is a schematic diagram of the side partial structure of the elastic locking mechanism of the large-diameter section of the utility model;

Fig. 3 is a schematic diagram of the side partial structure of the elastic locking mechanism of the small-diameter section of the present invention;

Fig. 4 is a schematic view of the front structure of the utility model elastic sealing ring;

Fig. 5 is a schematic diagram of the side structure of the elastic sealing ring of the present invention.

detailed description

Below in conjunction with accompanying drawing 1-5, the utility model is further described:

Embodiment 1: A joint device for a three-leaf variable-diameter oil filter, including a pipe head, and an elastic locking mechanism arranged at both ends of the pipe head. The elastic locking mechanism includes an elastic chuck 3, a chuck seat 2 and a pressing Cover 1, the elastic chuck 3 is arranged in the conical hole of the chuck seat 2, the pressing cover 1 is connected with the chuck seat 2, and the ring-shaped protrusion is arranged in the pressing cover 1 10 is matched with the elastic collet 3.

Described pipe head comprises upper large-diameter section 5, small-diameter section 8 and the variable-diameter section 6 that connects described large-diameter section 5 and described small-diameter section 8, and described variable-diameter section 6 is a tapered pipe, and the large-diameter section An annular sealing groove 4 is provided on the outer surface of the segment 5 and the small-diameter segment 8 .

An elastic sealing ring 9 is arranged in the annular sealing groove 4 .

The middle of the collet 3 is a circular through hole 11 and the outside is conical shaped to match the conical hole.

The pipe head is made of polytetrafluoroethylene.

Embodiment 2: A joint device for a three-leaf variable-diameter oil filter, including a pipe head, and an elastic locking mechanism arranged at both ends of the pipe head. The elastic locking mechanism includes an elastic chuck 3, a chuck seat 2 and a pressing Cover 1, the elastic chuck 3 is arranged in the conical hole of the chuck seat 2, the pressing cover 1 is connected with the chuck seat 2, and the ring-shaped protrusion is arranged in the pressing cover 1 10 is matched with the elastic collet 3.

Described pipe head comprises upper large-diameter section 5, small-diameter section 8 and the variable-diameter section 6 that connects described large-diameter section 5 and described small-diameter section 8, and described variable-diameter section 6 is a tapered pipe, and the large-diameter section An annular sealing groove 4 is provided on the outer surface of the segment 5 and the small-diameter segment 8 .

An elastic sealing ring 9 is arranged in the annular sealing groove 4 .

The middle of the collet 3 is a circular through hole 11 and the outside is conical shaped to match the conical hole.

The pipe head is made of polytetrafluoroethylene.

A steel wire mesh sleeve 7 is arranged outside the diameter reducing section 6 .

Embodiment 3: A joint device for a three-leaf variable-diameter oil filter, including a pipe head and an elastic locking mechanism arranged at both ends of the pipe head. The elastic locking mechanism includes an elastic chuck 3, a chuck seat 2 and a pressing Cover 1, the elastic chuck 3 is arranged in the conical hole of the chuck seat 2, the pressing cover 1 is connected with the chuck seat 2, and the ring-shaped protrusion is arranged in the pressing cover 1 10 is matched with the elastic collet 3.

Described pipe head comprises upper large-diameter section 5, small-diameter section 8 and the variable-diameter section 6 that connects described large-diameter section 5 and described small-diameter section 8, and described variable-diameter section 6 is a tapered pipe, and the large-diameter section An annular sealing groove 4 is provided on the outer surface of the segment 5 and the small-diameter segment 8 .

An elastic sealing ring 9 is arranged in the annular sealing groove 4, and the elastic sealing ring 9 is an O-ring.

The middle of the collet 3 is a circular through hole 11 and the outside is conical shaped to match the conical hole.

The use method of the utility model: set the large-diameter section of the device on a pipe with a larger diameter, and set an elastic sealing ring in the annular sealing groove, and then set the chuck seat, the chuck and the compression cover in sequence On it, then set the collet seat, collet, elastic sealing ring and compression cover required by the smaller diameter on the smaller pipe, then set the small diameter section on the smaller diameter pipe, and seal the elastic The snare is set in the annular sealing groove, and then the collet of the small diameter section is put on, and locked by the cooperation of the compression cover and the collet seat, the pipe is sealed, and the installation is completed.

Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model, and anyone skilled in this art can make modifications, alterations and retouches within the spirit and scope of the utility model. Easily conceivable changes or replacements should be covered within the protection scope of the present utility model.

Claims (7)

1. leaf reducing oil filter piecing devices, comprise tube head, be arranged on the elastic locking mechanism at tube head two ends, it is characterized in that: described elastic locking mechanism comprises collet, base of the carrier head and friction top, described collet is arranged in the conical bore of described base of the carrier head, described friction top and described base of the carrier head are connected, and arrange ring-like projection and match with described collet in described friction top.

2. three leaf reducing oil filter piecing devices as claimed in claim 1, it is characterized in that: described tube head comprises the large footpath section on top, path section and the reducer being connected described large footpath section and described path section, described reducer is conical pipe, and described large footpath section and described path section outer surface all arrange annular seal groove.

3. three leaf reducing oil filter piecing devices as claimed in claim 2, is characterized in that: arrange elastic seal ring in described annular seal groove.

4. three leaf reducing oil filter piecing devices as claimed in claim 1, is characterized in that: be manhole in the middle of described collet and the outside cone type in matching with described conical bore.

5. three leaf reducing oil filter piecing devices as claimed in claim 1, is characterized in that: described tube head is teflon product.

6. three leaf reducing oil filter piecing devices as claimed in claim 2, is characterized in that: described reducer outer installment wire sets.

7. three leaf reducing oil filter piecing devices as claimed in claim 3, is characterized in that: described elastic seal ring is O type circle.