CN204267930U - A kind of direct insertion pressure piping joint - Google Patents

Abstract

The utility model discloses an in-line pressure pipeline joint, which is composed of a connecting flange seat, a sealing ring, a split-type clamping ring and a compression ring connected in sequence, the section of the sealing ring is wedge-shaped, and the sealing The inclined surface of the outer wall part of the small end of the sealing ring is in contact with the raised top of the middle part of the connecting flange seat, a card groove is provided on the side of the large end of the sealing ring, and the split clamping collar is composed of several ring-shaped flaps Composition, there is a pressing gap between the several ring-shaped flaps, the cross-section of the ring-shaped flaps is wedge-shaped, and a hook is provided on the big end side of the ring-shaped flaps, and the hooks cooperate with the grooves connection, the inner wall of the compression ring is set as an annular counterbore structure, the outer wall of the compression ring is provided with two lock lugs, and the connecting flange seat corresponding to the lock lugs is provided with an anti-rotation counterbore, and the lock lugs Bolts are arranged in the anti-rotation counterbore and fixed by nuts. The utility model has the advantages of simple structure, convenient installation, good sealing performance and high firmness.

Description

A direct plug-in pressure pipe joint

technical field

The utility model relates to the field of pressure pipelines, in particular to an in-line pressure pipeline joint.

Background technique

For a long time in the past, when the outlet of the water pump or the outlet of the sewage lifter was connected to the output pressure pipe, a steel pipe with a flange was used to connect with the flange of the pump or lifter and fixed with screws. During on-site construction, since the outlet of the pump station and the pipeline interface are fixed to ensure reliable connection and sealing, either on-site welding requires on-site equipment and mature technical workers, which takes a long time and costs a lot; A rubber flexible joint, the price is higher. Nowadays, pressure-bearing plastic pipes are mostly used for drainage pipes, and it is inconvenient to weld on site. In order to change this status quo, low prices, convenient use, and flexible operation are achieved. When in use, as long as the drain pipe is directly inserted into the pipe joint, a large deviation in the axial dimension of the drain pipe is allowed without affecting the construction. A problem arises that the use time becomes longer and deteriorates.

Utility model content

The purpose of the utility model is to overcome the above problems existing in the prior art, and provide an in-line pressure pipeline joint. The utility model has simple structure, convenient installation, good sealing performance and high firmness.

In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the utility model is realized through the following technical solutions:

An in-line pressure pipeline joint, which consists of a connecting flange seat, a sealing ring, a split clamping collar and a compression ring connected in sequence, the section of the sealing ring is wedge-shaped, and the outer wall part of the small end of the sealing ring is The inclined surface of the connecting flange abuts against the raised top of the middle part of the flange seat, and a card groove is provided on the side of the large end of the sealing ring. A compression gap is provided between the annular clamping petals, the section of the circular clamping petals is wedge-shaped, and a hook is provided on one side of the large end of the annular clamping petals. The inner wall is set as an annular counterbore structure, and the outer wall of the compression ring is provided with two lock lugs, and the connecting flange seat corresponding to the lock lugs is provided with an anti-rotation counterbore, and the lock lug and the anti-rotation counterbore are set Has bolts and is secured by nuts.

Further, the number of the annular clasps is 3 or 4.

Further, several annular ribs are provided on the slopes of the inner wall and the outer wall of the sealing ring.

Further, the sealing ring is made of elastic rubber or similar elastic body.

Further, the inner wall of the annular clasp is provided with several annular teeth.

Further, a washer is provided between the nut and the lock lug.

Further, the material of the annular clasp is copper alloy or stainless steel.

Further, the bolt head structure of the bolt is consistent with the anti-rotation counterbore, and it only needs to be non-circular to ensure that the bolt cannot be rotated.

The beneficial effects of the utility model are:

The device described in the utility model can firmly lock the pressure-bearing plastic pipe with the outlet of the pump or extractor, has good sealing performance, and can adapt to the connection of pipes with approximate diameters. The connection is locked by bolts and nuts, and the operation is convenient and fast; Compared with the planar structure, it can ensure good sealing performance during extrusion; there are gaps between the annular clamping flaps, which can adapt to the connection of pressure pipes with different diameters.

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with accompanying drawings. back. The specific embodiment of the utility model is given in detail by the following examples and accompanying drawings.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiment technology of the present invention, the accompanying drawings that need to be used in the technical description of the embodiment will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the embodiment of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the explosion structure schematic diagram of the present utility model;

Fig. 2 is a schematic cross-sectional view of the overall structure of the utility model;

Fig. 3 is a schematic cross-sectional structure diagram of the sealing ring of the present invention;

Fig. 4 is a schematic cross-sectional structure diagram of the annular clamp flap of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Figures 1 to 4, an in-line pressure pipe joint is composed of a connecting flange seat 1, a sealing ring 2, a split clamping collar 3 and a compression ring 4 connected in sequence, and the cross section of the sealing ring is It is wedge-shaped, and the inclined surface of the outer wall part of the small end of the sealing ring is in contact with the raised top of the middle part of the connecting flange seat. There is a card groove 21 on the side of the large end of the sealing ring, and the split clamping collar is composed of four annular rings The clamping valve is composed of 31, and the material of the ring clamping valve is copper alloy or stainless steel. There is a pressing gap 32 between the ring clamping valves. The cross section of the ring clamping valve is wedge-shaped. The hook is connected with the card slot, the inner wall of the compression ring is set as an annular counterbore structure, the outer wall of the compression ring is provided with two lock ears 41, and the corresponding connecting flange seat of the lock ears is provided with an anti-rotation counterbore 11, and the lock ears and Bolts 5 are arranged in the anti-rotation counterbore and fixed by nuts 6 and washers 7 .

Wherein, a plurality of annular ribs 22 are arranged on the inner wall and the outer wall slope of the sealing ring to ensure the sealing performance after tight pressing. A plurality of ring teeth 34 are provided on the inner wall of the annular clamp flap to effectively clamp the pressure pipe.

The working principle of this embodiment is as follows:

When in use, set the device shown in Figure 2 on the joint of the pressure pipe, the pressure pipe enters from the compression ring to the middle of the connecting flange seat, and then lock the two nuts, the nuts are locked and pressed against the compression ring toward The connection flange seat moves in the direction, and the compression ring passes through the inner wall of the annular counterbore structure, and moves against the two metal ring clips. The metal material will not be deformed, so through the setting of the compression gap, it can pass through after extrusion. The gap is narrowed so that the ring clip is close to the pressure pipe, and the ring teeth on the inner wall of the ring clip can firmly bite the pressure pipe after being pressed tightly to ensure the firmness of the structure. The ring clip presses against the sealing ring to the connecting flange Seat, because the sealing ring and the connecting flange seat are connected by a tapered surface, they are squeezed into the space between the connecting flange seat and the pressure pipe through the inclined surface of the outer wall, and the annular ribs on the inclined surface of the sealing ring are connected with the connecting flange after extrusion. The seat is tighter to increase the sealing effect, and the annular rib on the inner wall is more tightly connected to the pressure pipe to increase the sealing effect.

Among them, the annular clasp and the sealing ring are connected by a card groove and a hook. When the pressure pipe is not connected, it will not fall from the inside of the joint, ensuring the integrity of the joint. When used on pressure pipes of different diameters, through The gap shrinks, and it can also be installed perfectly, becoming a universal piece.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. An in-line pressure pipeline joint, characterized in that: it consists of a connecting flange seat, a sealing ring, a split clamping collar and a compression ring connected in sequence, the section of the sealing ring is wedge-shaped, and the The inclined surface of the outer wall part of the small end of the sealing ring abuts against the raised top of the middle part of the connecting flange seat, a card groove is provided on the side of the large end of the sealing ring, and the split clamping collar is composed of several annular rings Composed of clamping flaps, there is a pressing gap between the annular clamping flaps, the cross section of the annular clamping flaps is wedge-shaped, and a hook is provided on the big end side of the annular clamping flap, and the hook is matched with the clamping groove connection, the inner wall of the compression ring is set as an annular counterbore structure, the outer wall of the compression ring is provided with two lock lugs, and the connecting flange seat corresponding to the lock lugs is provided with an anti-rotation counterbore, and the lock lugs Bolts are arranged in the anti-rotation counterbore and fixed by nuts. 2. An in-line pressure line connector according to claim 1, characterized in that: the number of said annular clips is 3 or 4. 3. An in-line pressure pipeline joint according to claim 1, characterized in that: the inner wall and the outer wall slope of the sealing ring are provided with a number of annular ribs, and the material is elastic rubber. 4. An in-line pressure pipeline joint according to claim 1, characterized in that: the inner wall of the annular clasp is provided with several annular teeth. 5 . The in-line pressure pipeline joint according to claim 1 , wherein a gasket is arranged between the nut and the locking ear. 5 . 6 . The in-line pressure pipe joint according to claim 1 , wherein the material of the ring-shaped clasp is copper alloy or stainless steel. 7 . 7. An in-line pressure pipeline joint according to claim 1, characterized in that: the structure of the bolt head of the bolt is consistent with the anti-rotation counterbore.