High-pressure pipe joint

Abstract

The utility model relates to the technical field of high-pressure pipe joints, in particular to a high-pressure pipe joint which comprises a joint sleeve, an inner joint set and a fixing sleeve, the slidable inner joint set is arranged on the upper side in the joint sleeve, the fixing sleeve is sleeved on the inner joint set, and the fixing sleeve is in threaded bolting connection with the inner wall of the joint sleeve. When in use, the threaded connection sleeve head is in threaded connection with an outflow pipeline, inflow pipelines which need to be connected and have different diameters are connected and fixed from the taper sleeve, high-pressure fluid in the inflow pipelines enters the inner connecting pipe through the flow guide ring, the pressure of the connecting pipe is changed through the taper sleeve, and at the moment, the fluid is impacted by high pressure in the inner connecting pipe; the inner connecting pipe slides towards one side of the fixing sleeve due to impact of high-pressure fluid, the lantern ring applies pressure to the lower pressing ring, the reset spring conducts impact buffering on the high-pressure fluid through corresponding deformation, and the high-pressure buffering effect of the high-pressure fluid is improved.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure pipe fitting technology, and in particular to a high-pressure pipe fitting. Background Technology

[0002] High-pressure pipe fittings are connecting components in high-pressure pipeline systems. Their main function is to connect pipes and corresponding equipment within the high-pressure pipeline system, ensuring the airtightness and sealing of the pipe connections, thereby guaranteeing the normal operation of the pipeline system.

[0003] Furthermore, when connecting existing high-pressure pipe joints, due to the high-pressure flow rate and the different diameters of the two connected high-pressure pipes, the high-pressure pipe joints need to withstand greater hydraulic pressure to ensure normal fluid flow during fluid diameter change. Utility Model Content

[0004] Those skilled in the art have provided a high-pressure pipe fitting to solve the problems mentioned in the background section.

[0005] To solve the above technical problems, this utility model provides a high-pressure pipe connector, including a connector sleeve, an inner connector assembly, and a fixing sleeve. The upper side of the connector sleeve is provided with a slidable inner connector assembly, and the fixing sleeve is sleeved on the inner connector assembly. The fixing sleeve is threadedly bolted to the inner wall of the connector sleeve.

[0006] The connector sleeve includes an outer tube, a hexagonal collar, a tapered sleeve, a guide ring, a sealing gasket ring, a limiting slot, and an internal thread. The hexagonal collar is fixedly installed on the outer end of the bottom ring side of the outer tube, and the tapered sleeve is fixed on the lower end face of the outer tube. The tapered sleeve can be used to fit pipes of different diameters. Several limiting slots are circumferentially opened in the middle of the outer tube, and an internal thread is opened on the top of the inner wall of the outer tube.

[0007] The inner connector assembly includes an inner tube, a collar, a lower pressure ring, a return spring, an upper pressure ring, and spring blocks. The inner tube is sleeved on the outside of the guide ring, and the collar is fixedly installed on the lower side of the outer wall of the inner tube. The sealing gasket is adhered to the bottom of the collar. The collar drives the inner tube to slide freely in the inner cavity of the outer tube of the connector. The lower pressure ring is sleeved on the inner tube and is positioned above the collar. The upper pressure ring is sleeved on the inner tube and is positioned above the lower pressure ring. A return spring is fixedly connected between the lower pressure ring and the upper pressure ring. The return spring is sleeved on the inner tube. Several spring blocks are fixedly installed in a ring shape on the side end of the upper pressure ring. The spring blocks engage with the limiting slots.

[0008] In a preferred embodiment: a flow guide ring is fixedly connected to the bottom of the outer tube of the connector, and the flow guide ring guides the fluid flow through a conical sleeve.

[0009] In a preferred embodiment: the flow guide ring and the joint outer tube inner wall are provided with an annular cavity, the annular cavity is used for the inner joint group to be installed, and the cavity bottom of the annular cavity is provided with a sealing gasket ring.

[0010] In a preferred embodiment: the sealing gasket ring is arranged between the joint outer tube and the connecting gap of the sleeve ring, and the sealing gasket ring is adhered to the bottom of the sleeve ring.

[0011] In a preferred embodiment: the fixing sleeve is divided into a threaded sleeve head and a fastening sleeve ring, and the lower end of the threaded sleeve head is fixedly installed with the fastening sleeve ring.

[0012] In a preferred embodiment: the threaded sleeve head and the fastening sleeve ring are sleeved on the inner joint pipe, and the fastening sleeve ring is in threaded engagement with the inner thread, so that the inner joint group can always be located in the joint sleeve.

[0013] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0014] 1、The utility model discloses a threaded sleeve head and an outflow pipeline are screwed, different diameter inflow pipelines are connected to the fixed cone sleeve, high-pressure fluid in the inflow pipeline enters the inner joint pipe through the flow guide ring, the joint pipe is pressure-transformed through the cone sleeve, the fluid is impacted in the inner joint pipe, the inner joint pipe slides to the fixed sleeve side under the high-pressure fluid impact, the sleeve ring is pressed by the bottom pressing ring, the reset spring is deformed to buffer the high-pressure fluid impact, and the high-pressure fluid impact buffering effect is increased.

[0015] 2、When the elastic block and the limiting clamp are damaged, the upper pressing ring can still be resisted by the fastening sleeve ring, protection work is realized, and the pipe joint can well bear the high-pressure fluid impact. DRAWINGS

[0016] Fig. 1 It is the structural schematic diagram provided by the application.

[0017] Fig. 2 It is the structural schematic diagram of the joint sleeve provided by the application.

[0018] Fig. 3 It is the structural schematic diagram of the fixed sleeve provided by the application.

[0019] Fig. 4 It is the structural schematic diagram of the fixed sleeve provided by the application.

[0020] In the drawing: 1, joint sleeve; 2, inner joint group; 3, fixed sleeve.

[0021] 11, joint outer tube; 12, hex collar; 13, taper sleeve; 14, flow guide ring; 15, gasket ring; 16, limit clamp; 17, internal thread;

[0022] 21, inner joint; 22, collar; 23, lower pressing ring; 24, return spring; 25, upper pressing ring; 26, elastic block;

[0023] 31, threaded sleeve; 32, fastening collar. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be wall-mounted connection, can be detachable connection, or integral connection, can be mechanical connection, can be electrical connection, can be direct connection, can be indirect connection through an intermediate medium, can be internal communication of two elements, and for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Please refer to Figs. 1-4 In the present embodiment, a high-pressure pipe joint is provided, which comprises a joint sleeve 1, an inner joint group 2, and a fixing sleeve 3. The inner joint group 2 is slidably arranged on the inner upper side of the joint sleeve 1, the fixing sleeve 3 is sleeved on the inner joint group 2, and the fixing sleeve 3 is threadedly connected with the inner wall of the joint sleeve 1.

[0028] The joint sleeve 1 comprises a joint outer pipe 11, a hexagonal collar 12, a taper sleeve 13, a flow guide ring 14, a gasket ring 15, a limiting clamping port 16 and an internal thread 17, the hexagonal collar 12 is fixedly installed at the bottom ring side outer end of the joint outer pipe 11, the taper sleeve 13 is fixed at the lower end face of the joint outer pipe 11, the taper sleeve 13 can be applied to pipes with different diameters for sleeving, the flow guide ring 14 is fixedly connected to the bottom of the joint outer pipe 11, the flow guide ring 14 guides fluid flow through the taper sleeve 13, an annular cavity is arranged between the flow guide ring 14 and the inner wall of the joint outer pipe 11, the annular cavity is used for inserting the inner joint set 2, the gasket ring 15 is arranged at the cavity bottom of the annular cavity, the gasket ring 15 is arranged between the connecting gap of the joint outer pipe 11 and the collar 22, a plurality of limiting clamping ports 16 are annularly arranged in the middle part of the joint outer pipe 11, and the internal thread 17 is arranged at the top of the inner wall of the joint outer pipe 11.

[0029] The inner joint set 2 comprises an inner connecting pipe 21, a collar 22, a lower pressing ring 23, a reset spring 24, an upper pressing ring 25 and an elastic block 26, the inner connecting pipe 21 is sleeved outside the flow guide ring 14, the collar 22 is fixedly installed at the lower side of the outer wall of the inner connecting pipe 21, the gasket ring 15 is adhered to the bottom of the collar 22, the collar 22 drives the inner connecting pipe 21 to freely slide in the inner pipe cavity of the joint outer pipe 11, the lower pressing ring 23 is sleeved on the inner connecting pipe 21 and arranged above the collar 22, the upper pressing ring 25 is sleeved on the inner connecting pipe 21 and arranged above the lower pressing ring 23, the reset spring 24 is fixedly connected between the lower pressing ring 23 and the upper pressing ring 25 and sleeved on the inner connecting pipe 21, and a plurality of elastic blocks 26 are annularly fixedly installed at the side end of the upper pressing ring 25 and correspondingly clamped with the limiting clamping ports 16.

[0030] The fixing sleeve 3 is divided into a screw sleeve head 31 and a fastening sleeve ring 32, the fastening sleeve ring 32 is fixedly installed at the lower end of the screw sleeve head 31, the screw sleeve head 31 and the fastening sleeve ring 32 are sleeved on the inner connecting pipe 21, and the fastening sleeve ring 32 is in threaded engagement with the internal thread 17, so that the inner joint set 2 can always be located in the joint sleeve 1.

[0031] The working principle of the utility model is as follows:

[0032] The utility model discloses when using, through the screw joint of sleeve head 31 and the effluent pipeline, need to access the fixed access of the inflow pipeline of different diameter from the taper sleeve 13, the high pressure fluid in the inflow pipeline will enter into the inner connector pipe 21 through the flow guide ring 14, because the connector pipe changes pressure through the taper sleeve 13, the fluid at this time will flow high pressure impact in the inner connector pipe 21, and the inner connector pipe 21 will slide to the fixed sleeve 3 one side because of the impact of high pressure fluid, and the ring 22 then bottom pressure ring 23 carries out pressure, and reset spring 24 carries out the impact buffer of high pressure fluid through the corresponding deformation, increases the high pressure buffer effect of high pressure fluid, and even when the breakage of the clamping between elastic block 26 and limit bayonet 16, upper pressure ring 25 still can be resisted by fastening sleeve ring 32, realizes the protection work, guarantees that pipe joint can bear high pressure fluid impact well.

[0033] The above is only the preferred embodiment of the utility model, but the design concept of the utility model does not limit to this, any skilled person in the art uses the concept to make non-essential changes to the utility model within the technical range disclosed by the utility model, and all belong to the act of infringing the protection scope of the utility model.

Claims

1. A high-pressure pipe connector, comprising a connector sleeve (1), an inner connector assembly (2), and a fixing sleeve (3), characterized in that, The upper side of the connector sleeve (1) is provided with a slidable inner connector assembly (2), and a fixing sleeve (3) is fitted on the inner connector assembly (2). The fixing sleeve (3) is threadedly connected to the inner wall of the connector sleeve (1). The connector sleeve (1) includes a connector outer tube (11), a hexagonal collar (12), a conical sleeve (13), a flow guide ring (14), a sealing gasket ring (15), a limiting slot (16), and an internal thread (17). The hexagonal collar (12) is fixedly installed on the outer end of the bottom ring side of the connector outer tube (11), and the conical sleeve (13) is fixed on the lower end face of the connector outer tube (11). The conical sleeve (13) can be used to fit pipes of different diameters. Several limiting slots (16) are opened in a ring shape in the middle of the connector outer tube (11), and an internal thread (17) is opened on the top of the inner wall of the connector outer tube (11). The inner connector assembly (2) includes an inner tube (21), a collar (22), a lower pressure ring (23), a return spring (24), an upper pressure ring (25), and a spring block (26). The inner tube (21) is sleeved on the outside of the guide ring (14), and the collar (22) is fixedly installed on the lower side of the outer wall of the inner tube (21). The collar (22) drives the inner tube (21) to slide freely in the inner cavity of the outer tube (11) of the connector. The lower pressure ring (23) is sleeved on the inner tube (21). The lower pressure ring (23) is positioned above the collar (22), and the inner tube (21) is fitted with an upper pressure ring (25). The upper pressure ring (25) is positioned above the lower pressure ring (23), and a reset spring (24) is fixedly connected between the lower pressure ring (23) and the upper pressure ring (25). The reset spring (24) is fitted on the inner tube (21), and several spring blocks (26) are fixedly installed in a ring shape on the side end of the upper pressure ring (25). The spring blocks (26) are engaged with the limiting slots (16).

2. A high-pressure pipe connector according to claim 1, characterized in that, The bottom of the outer tube (11) of the connector is fixedly connected to the guide ring (14).

3. A high-pressure pipe connector according to claim 2, characterized in that, An annular cavity is provided between the guide ring (14) and the inner wall of the connector outer tube (11). The annular cavity is used for the inner connector assembly (2) to be inserted. A sealing gasket ring (15) is provided at the bottom of the annular cavity.

4. A high-pressure pipe connector according to claim 3, characterized in that, The sealing gasket (15) is placed between the joint outer tube (11) and the collar (22), and the sealing gasket (15) is adhered to the bottom of the collar (22).

5. A high-pressure pipe connector according to claim 1, characterized in that, The fixing sleeve (3) is divided into a screw-in sleeve (31) and a fastening collar (32), and the fastening collar (32) is fixedly installed at the lower end of the screw-in sleeve (31).

6. A high-pressure pipe connector according to claim 5, characterized in that, The threaded sleeve (31) and the fastening collar (32) are fitted on the inner tube (21), and the fastening collar (32) is threadedly engaged with the internal thread (17).

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