Stainless steel pipe flange joint

Abstract

The utility model discloses a stainless steel pipe flange joint, relates to the technical field of flange joints, aims to solve the technical problems that a flange plate type structure of an existing flange joint occupies a large space and is inconvenient to assemble under the conditions of limited space and special mounting angles, and comprises a connecting mechanism, a flange head and a locking mechanism, a liquid passing opening is formed in the middle of each flange head, an imbedding pipe is installed at an opening in the rear end of each liquid passing opening, connecting grooves are formed in the two ends of each flange head, the two flange heads are connected through the connecting mechanism, the connecting mechanism is composed of a connecting piece, an inner concave opening is formed in the inner side of each connecting piece, a gasket is arranged in each inner concave opening, and each connecting piece is connected with the corresponding liquid passing opening. The two sides of the connecting piece are each provided with a penetrating opening, the penetrating openings communicate with the interior of the inner concave opening, and the locking mechanism is composed of a first butt joint cylinder and a second butt joint cylinder. The utility model has the advantages of linear flange structural design, reduced space occupation, suitability for various installation spaces and environments, and strong practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange joint technical field more specifically, relate to a stainless steel pipe flange joint. BACKGROUND

[0002] Flange joint is a kind of connecting component widely used in pipeline system, and flange joint is mainly composed of flange and connecting component two parts.In the water supply, drainage pipeline and heating, air conditioning refrigerant delivery pipeline etc.in building, flange joint is convenient to install, maintain and overhaul, can ensure that pipeline system long-term stable operation, provides convenience for people's life.

[0003] The flange joint of stainless steel pipe generally adopts simple flange plate and bolt piece to connect and fix, and the flange joint occupies larger space, is limited in space and special installation angle working condition, such as in some compact equipment layout, round flange is not convenient to adhere to periphery structure, makes pipeline connection limited, causes the inconvenience of installation.In view of this, we propose a stainless steel pipe flange joint. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the insufficient of prior art, adapting to reality needs, provide a kind of stainless steel pipe flange joint, to solve the technical problem that the flange plate type structure of current flange joint occupies larger space, is inconvenient to assemble in the case of space limitation and special installation angle.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a kind of stainless steel pipe flange joint, including connecting mechanism, flange head and lock mechanism, the middle of the flange head is equipped with liquid passage, and the rear end opening of liquid passage is installed with insertion pipe, the both ends of the flange head are equipped with connecting groove, the connecting mechanism connects two flange heads, the connecting mechanism is made of connecting piece, the inside of the connecting piece is equipped with inner recess, and the inner recess is equipped with gasket, the both sides of the connecting piece are equipped with through hole, and the through hole is communicated with the inside of inner recess, the lock mechanism is made of first butt cylinder and second butt cylinder, and the outer end of first butt cylinder and second butt cylinder is fixed with baffle.

[0006] This utility model features a straight-line flange design. An insertion tube is installed through the rear end of the flange, inserting into the end of a stainless steel pipe. The rear end of the insertion tube fits snugly against the rear side of the flange and is then fixed by welding. The straight-line design effectively reduces the space occupied, facilitating assembly in space-constrained locations. It can also be adjusted to meet specific installation angle requirements, effectively reducing assembly difficulty. After the two flanges are joined, a U-shaped connector is inserted into the connecting groove on the side of the flange. A rubber sleeve structure improves the fit. Then, the first and second connecting sleeves, forming the locking mechanism, are inserted from the insertion ports on the outer sides of the two flanges respectively. After passing through the through-hole, the connection is completed. During the insertion process, the guide groove of the locking rod squeezes the expansion plate to expand and unfold. When the buckle on the inner side of the expansion plate is engaged in the slot, it stops. At this time, the first and second docking cylinders form a complete cylindrical structure. The outermost baffle limits and clamps the connector to connect with the flange head. The limiting support of the connector fixes the two flange heads after docking. The U-shaped arm of the connector completes the locking and limiting, and the concave surface fits to complete the positioning. Through the above structural design, this device can be fixed by locking through mutual insertion, without the need for bolt fixing, reducing the installation difficulty and making this device easy to install in space-constrained situations.

[0007] Preferably, the opening end of the connecting groove is designed to be height-adaptive, and the connecting member of the connecting mechanism is designed in a U-shape, with both ends of the connecting member inserted into adjacent connecting grooves, and the inner gasket of the inner recess of the connecting member fitting against the lower end of the connecting groove.

[0008] Preferably, the flange head is designed in a straight line, and both ends of the flange head have sockets on their outer sides, and the sockets are connected to the inside of the connecting groove.

[0009] Preferably, the end face of the connector is provided with a rubber sleeve, and both ends of the rubber sleeve are filled with pads, and the rubber sleeve fits against the bottom of the connecting groove.

[0010] Preferably, the first and second mating cylinders are inserted into the socket and through hole and then connected in the recess, and the baffle is attached to the opening of the socket on the outside of the flange head.

[0011] Preferably, the first docking cylinder has a locking sleeve inside, and expansion plates are distributed in a ring array on the outer side of the locking sleeve. The expansion plates are designed to be inclined, and the inner side of the outer end of the expansion plates is fixed with a buckle.

[0012] Preferably, the second docking cylinder has a pad rod inside, and a locking rod is fixed at the outer end of the pad rod. The locking rod has a guide groove arranged in a ring array on the outer side, and a slot is provided at the bottom of the guide groove.

[0013] Preferably, the expansion sheet is adapted to the inclined surface of the guide groove, and the length of the expansion sheet is the same as the length of the guide groove, and the buckle is clamped in the corresponding clamping groove.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The flange head is designed in a linear structure, the rear end of the flange head penetrates and is provided with an insertion pipe, the insertion pipe is inserted into the end of the stainless steel pipe, the rear end is attached to the rear side of the flange head and then fixed by welding, the linear design of the flange head effectively reduces the occupied space volume, facilitates the assembly of the device in a space-limited place, and can be adjusted according to special installation angle requirements, effectively reducing the assembly difficulty.

[0016] 2. The utility model also designs a connecting mechanism and a locking mechanism, two flange heads are butted, a U-shaped connecting piece is inserted into a connecting groove, and a first butt joint cylinder and a second butt joint cylinder of the locking mechanism are inserted into the corresponding flange head outer side socket to complete butt joint, in the insertion process, the guide groove of the lock rod extrudes the expansion sheet to make it expand and unfold, and the buckle is clamped in the clamping groove and then stopped, at this time, the assembly is completed, the connecting piece is connected with the flange head through the limiting clamping of the outermost baffle, the two flange heads are fixed after butt joint through the limiting support of the connecting piece, the U-shaped arm of the connecting piece is clamped and limited, and the positioning of the house type surface of the inner recess is completed, through the above structure design, the device can be fixed through the locking mode of mutual insertion, without using bolts, reducing the installation difficulty, and facilitating the installation of the device in a space-limited case. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is an expanded structure schematic diagram of the utility model;

[0019] Figure 3 It is a flange head structure schematic diagram of the utility model;

[0020] Figure 4 It is a connecting mechanism schematic diagram of the utility model;

[0021] Figure 5 It is a locking mechanism schematic diagram of the utility model;

[0022] Figure 6 It is a pad rod structure schematic diagram of the utility model;

[0023] Figure 7 It is a locking sleeve structure schematic diagram of the utility model.

[0024] The figure label explanation: 1, connecting mechanism; 101, rubber sleeve; 102, cushion block; 103, connecting piece; 104, inner recess; 105, gasket; 106, through hole; 2, flange; 201, inserted pipe; 202, connecting groove; 203, spigot; 204, liquid passage; 3, locking mechanism; 301, baffle; 302, first butt cylinder; 303, second butt cylinder; 304, pad rod; 305, lock sleeve; 306, lock rod; 307, guide groove; 308, clamping groove; 309, expansion piece; 310, buckle. DETAILED DESCRIPTION

[0025] As Figures 1 to 5 shown, the utility model relates to a stainless steel pipe flange joint, including connecting mechanism 1, flange 2 and locking mechanism 3, the middle part of flange 2 is equipped with liquid passage 204, and the rear end opening of liquid passage 204 is installed inserted pipe 201, both ends of flange 2 are equipped with connecting groove 202, and connecting mechanism 1 connects two flanges 2, and connecting mechanism 1 is formed by connecting piece 103, the inner side of connecting piece 103 is equipped with inner recess 104, and gasket 105 is arranged in inner recess 104, and the opening end of connecting groove 202 is high-low adaptation design, and the connecting piece 103 of connecting mechanism 1 is U-shaped design, and the both ends of connecting piece 103 are inserted into adjacent connecting groove 202, and the gasket 105 in the inner recess 104 of connecting piece 103 is attached to the low face end of connecting groove 202, and flange 2 is designed as a linear type, and the both ends of flange 2 are equipped with spigot 203 on the outside, and spigot 203 is connected with the inside of connecting groove 202, and the end face of connecting piece 103 is equipped with rubber sleeve 101, and the both ends of rubber sleeve 101 are filled with cushion block 102, and rubber sleeve 101 is attached to the bottom of connecting groove 202, and flange 2 is designed as a linear structure, and the rear end of flange 2 is installed inserted pipe 201, and inserted pipe 201 is inserted into the end of stainless steel pipe, and the rear end is attached to the rear side of flange 2 and then fixed by welding, and the linear design of flange 2 effectively reduces the occupied space volume, facilitates the assembly of the device in the space limited place, and can be adjusted according to the special installation angle requirement, effectively reduces the assembly difficulty.

[0026] As Figures 3 to 7The utility model relates to a kind of stainless steel pipe flange joint shown, including connecting mechanism 1, flange 2 and locking mechanism 3, the both sides of connecting piece 103 are all set with through 106, and through 106 is connected inside recess 104, locking mechanism 3 is made of first docking cylinder 302 and second docking cylinder 303, and the outer end of first docking cylinder 302 and second docking cylinder 303 is fixed with baffle 301, first docking cylinder 302 and second docking cylinder 303 are connected in inside recess 104 after being inserted into from socket 203 and through 106, baffle 301 is attached to the opening portion of socket 203 outside flange 2, the inside of first docking cylinder 302 is equipped with lock sleeve 305, and lock sleeve 305 outside annular array distribution has expansion sheet 309, expansion sheet 309 is inclined design, and the outer end inside expansion sheet 309 is fixed with buckle 310, the inside of second docking cylinder 303 is equipped with pad rod 304, and pad rod 304 outer end is fixed with lock rod 306, lock rod 306 outside annular array is set with guide slot 307, and the bottom of guide slot 307 is equipped with clamping groove 308, expansion sheet 309 adapts the inclined surface of guide slot 307, and expansion sheet 309 length is same with guide slot 307 length, buckle 310 is clamped in corresponding clamping groove 308, two flanges 2 are docked, U-shaped connecting piece 103 is inserted into connecting groove 202, and first docking cylinder 302 and second docking cylinder 303 of the locking mechanism 3 are inserted into from corresponding flange 2 socket 203 and complete docking, during splicing process, guide slot 307 of lock rod 306 extrudes expansion sheet 309 and makes it expand and unfold, buckle 310 is clamped in clamping groove 308 after stopping, at this time, assembly is completed, the most outside baffle 301 is positioned and clamped, so that connecting piece 103 is connected with flange 2, the fixing of two flanges 2 after complete docking is realized by the limiting support of connecting piece 103, the U-shaped arm of connecting piece 103 completes clamping and limiting, the positioning of the house type surface of inside recess 104 is completed by attaching, through the above structural design, the device can be fixed by the way of mutual splicing locking, without using bolt, reduce installation difficulty, so that the device is convenient to install in the case of space limitation.

[0027] Working principle: the embodiment provides a stainless steel pipe flange joint, when in use, the flange head 2 is designed as a linear structure, the rear end of the flange head 2 is penetrated and installed with the inserted pipe 201, the inserted pipe 201 is inserted into the end head of the stainless steel pipe, the rear end is attached to the rear side of the flange head 2 and then fixed through welding, the linear design of the flange head 2 effectively reduces the occupied space volume, when the two flange heads 2 are butt-jointed, the U-shaped connecting piece 103 is inserted into the connecting groove 202 of the side edge of the flange head 2, the adhesion degree is improved through the rubber sleeve 101 structure, then the first butt-joint cylinder 302 and the second butt-joint cylinder 303 constituting the locking mechanism 3 are inserted into the spigot 203 outside the two flange heads 2 respectively, then the butt-joint is completed after passing through the through hole 106, in the inserting process, the guide groove 307 of the lock rod 306 extrudes the expansion sheet 309 to make it expand and unfold, when the buckle 310 inside the expansion sheet 309 is buckled in the clamping groove 308, the process is stopped, at this time, the first butt-joint cylinder 302 and the second butt-joint cylinder 303 constitute a complete cylinder structure, the connecting piece 103 is connected with the flange head 2 through the limiting and clamping of the outermost baffle 301, the two flange heads 2 are fixed after butt-joint through the limiting support of the connecting piece 103, the U-shaped arm of the connecting piece 103 completes the clamping and limiting, and the positioning is completed through the house type surface attachment of the inner recess 104.

[0028] The embodiments of the utility model discloses the better embodiment, but is not limited to this, the ordinary skill of the art, the person, the spirit of the utility model is appreciated very easily according to the above-mentioned embodiment, and different extension and change are made, but as long as not departing from the spirit of the utility model, all are within the protection scope of the utility model.

Claims

1. A stainless steel pipe flange joint, comprising a connecting mechanism (1), a flange head (2), and a locking mechanism (3), characterized in that: The flange head (2) has a liquid outlet (204) in the middle, and an insertion tube (201) is installed at the rear end opening of the liquid outlet (204). Both ends of the flange head (2) have connecting grooves (202). The connecting mechanism (1) connects the two flange heads (2). The connecting mechanism (1) is composed of a connector (103). The connector (103) has an inner recess (104) on its inner side, and a gasket (105) is provided in the inner recess (104). Both sides of the connector (103) have through holes (106), and the through holes (106) communicate with the inside of the inner recess (104). The locking mechanism (3) is composed of a first docking cylinder (302) and a second docking cylinder (303), and baffles (301) are fixed at the outer ends of the first docking cylinder (302) and the second docking cylinder (303).

2. A stainless steel pipe flange joint according to claim 1, characterized in that: The opening end of the connecting groove (202) is designed to be adapted to different heights, and the connector (103) of the connecting mechanism (1) is designed in a U-shape. Both ends of the connector (103) are inserted into the adjacent connecting groove (202), and the gasket (105) inside the concave opening (104) of the connector (103) is in contact with the lower end of the connecting groove (202).

3. A stainless steel pipe flange joint according to claim 2, characterized in that: The flange head (2) is designed in a straight line, and both ends of the flange head (2) are provided with sockets (203), and the sockets (203) are connected to the inside of the connecting groove (202).

4. A stainless steel pipe flange joint according to claim 3, characterized in that: The connector (103) has a rubber sleeve (101) at its end face, and both ends of the rubber sleeve (101) are filled with pads (102). The rubber sleeve (101) fits against the bottom of the connecting groove (202).

5. A stainless steel pipe flange joint according to claim 4, characterized in that: After the first docking tube (302) and the second docking tube (303) are inserted from the socket (203) and the through hole (106), they are connected in the recess (104), and the baffle (301) is attached to the opening of the socket (203) on the outside of the flange head (2).

6. A stainless steel pipe flange joint according to claim 5, characterized in that: The first docking cylinder (302) has a locking sleeve (305) inside, and expansion plates (309) are distributed in a ring array on the outer side of the locking sleeve (305). The expansion plates (309) are designed to be inclined, and a buckle (310) is fixed on the inner side of the outer end of the expansion plate (309).

7. A stainless steel pipe flange joint according to claim 6, characterized in that: The second docking cylinder (303) is provided with a pad rod (304) inside, and a locking rod (306) is fixed at the outer end of the pad rod (304). The locking rod (306) is provided with a guide groove (307) in an annular array on the outer side, and a slot (308) is provided at the bottom of the guide groove (307).

8. A stainless steel pipe flange joint according to claim 7, characterized in that: The expansion piece (309) is adapted to the inclined surface of the guide groove (307), and the length of the expansion piece (309) is the same as the length of the guide groove (307). The buckle (310) is engaged in the corresponding slot (308).

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