Cast pipe joint

Abstract

The utility model relates to the technical field of pipe joints, and provides a cast pipe joint which comprises a first pipe head assembly, the first pipe head assembly comprises a first installation base, one side of the first installation base is fixedly connected with a connector, the outer wall of the connector is fixedly connected with external threads, and the inner wall of the connector is fixedly connected with internal threads. A communicating pipe concentric with the connector is arranged on the inner side of the connector, one end of the communicating pipe is fixedly connected with the first mounting base, and a second pipe head assembly communicating with the communicating pipe is arranged at the other end of the communicating pipe. The external thread of the connector on the first installation base is in threaded connection with the internal thread sleeve, meanwhile, the internal thread of the connector is in threaded connection with the external thread sleeve, the whole pipe head is stably connected in a multi-layer thread matching mode, and the problem that in the prior art, a pipeline is prone to disengagement due to the fact that the pipeline is prone to being subjected to external force is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe joints, in particular to a casting pipe joint. Background Art

[0002] A pipe connector is a connector that can connect or disconnect pipes without tools. Usually, the male head of the quick connector is inserted into the female head of the quick connector, and the lever is moved so that the lever and the male head of the quick connector are engaged, thus completing the installation and connection of the male head and the female head.

[0003] After searching, the Chinese patent publication number CN214146979U discloses "a stainless steel cast quick connector with stable connection, including a male connector and a female connector, and a lever for locking the male connector and the female connector is provided on the female connector.

[0004] The male connector is provided with a slot to match the lever, the male connector is sleeved with a sleeve, the female connector is provided with a clamping ring to match the sleeve, the sleeve is provided with a first inclined surface, and the clamping ring is provided with a second inclined surface to match the first inclined surface.

[0005] The above patent connects pipes by setting an interference fit between the male and female joints, wherein the male and female joints mainly rely on the static friction between them to maintain stability and prevent separation. However, if the balance of the static friction is broken by external force after installation, the male and female joints will separate, causing the connected pipes to separate. Utility Model Content

[0006] The utility model provides a casting pipe joint, which solves the problem in the prior art that the pipe is easily separated due to external force.

[0007] The technical solution of the utility model is as follows: a cast pipe joint, comprising a pipe head assembly 1, the pipe head assembly 1 comprising a mounting seat 1, a connecting head is fixedly connected to one side of the mounting seat 1, an outer wall of the connecting head is fixedly connected to an external thread, an inner wall of the connecting head is fixedly connected to an internal thread, a connecting pipe concentrically arranged with the connecting head is arranged on the inner side of the connecting head, one end of the connecting pipe is fixedly connected to the mounting seat 1, and the other end of the connecting pipe is provided with a pipe head assembly 2 connected to the connecting pipe.

[0008] Preferably, the connector is a circular ring structure, and the inner diameter of the connector is larger than the outer diameter of the connecting pipe.

[0009] Preferably, the second pipe head assembly includes a second mounting seat, an outer edge of one side of the second mounting seat is fixedly connected with an internal threaded sleeve, the inner wall of the internal threaded sleeve is threadedly connected to the external thread of the connecting head, the inner side of the internal threaded sleeve is provided with an external threaded sleeve concentrically arranged with the internal threaded sleeve, one end of the external threaded sleeve is fixedly connected to the second mounting seat, the outer wall of the external threaded sleeve is threadedly connected to the internal thread of the connecting head, and the inner wall of the external threaded sleeve is slidably connected to the connecting pipe.

[0010] Preferably, the mounting seat 1 and the mounting seat 2 are both annular structures, and their outer diameters are the same.

[0011] Preferably, the inner diameter of the external threaded sleeve is the same as the outer diameter of the connecting pipe, and the length of the connecting pipe is greater than the length of the external threaded sleeve.

[0012] Preferably, a plurality of seals for sealing the outer wall of the connecting pipe are arranged on the inner side of the second mounting seat, and the plurality of seals are distributed at equal angles around the second mounting seat.

[0013] Preferably, the sealing component comprises a piston 1, an L-shaped oil passage for filling oil is provided on the inner side of the mounting seat 2, the piston 1 is slidably connected to the inner wall of the horizontal section of the L-shaped oil passage, a sliding rod 1 is fixedly connected to one side of the piston 1, the sliding rod 1 penetrates the inner wall of the L-shaped oil passage and extends to the outer side of the mounting seat 2, the sliding rod 1 is slidably connected to the inner wall of the L-shaped oil passage, the end of the sliding rod 1 away from the piston 1 is fixedly connected to a pressure block, the connecting head is in contact with the pressure block, one end of the sliding rod 1 is sleeved with a spring, one end of the spring is in contact with the pressure block, and the other end of the spring is in contact with the side wall of the mounting seat 2, and the horizontal section of the L-shaped oil passage is provided with a clamping piece that is tightly attached to the outer wall of the connecting pipe.

[0014] Preferably, the clamping member includes a second slide rod, which passes through the side wall of the vertical section of the L-shaped oil channel and is slidably connected to the side wall of the L-shaped oil channel. The top end of the second slide rod is fixedly connected to a second piston, and the second piston is slidably connected to the inner wall of the vertical section of the L-shaped oil channel. The bottom end of the second slide rod is fixedly connected to a sealing plate, and the sealing plate is in contact with the outer wall of the connecting pipe.

[0015] Preferably, the sealing plate is an arc-shaped structure, and a rubber pad is fixedly connected to the inner wall of the sealing plate.

[0016] Preferably, the side of the mounting seat 1 away from the connector is fixedly connected to the catheter 1, the side of the mounting seat 2 away from the internal threaded sleeve is fixedly connected to the catheter 2, and the catheter 2 is arranged concentrically with the catheter.

[0017] The technical effects and advantages of the utility model are as follows: by threading the external thread of the connector on the mounting seat one with the internal thread sleeve, and at the same time threading the internal thread of the connector with the external thread sleeve, the connecting pipe can be slidably matched with the external thread sleeve and connected with the inner side of the mounting seat two, so that the connecting pipe is connected with the conduit one, and then the connection between the conduit two and the conduit one is realized. The connection of the entire pipe head is stably connected by multi-layer thread matching, which effectively avoids the problem of pipe detachment under the action of external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of a casting pipe joint.

[0019] Figure 2 The utility model is a cross-sectional view of a casting pipe joint.

[0020] Figure 3 It is a structural schematic diagram of the pipe head component 1 of the utility model.

[0021] Figure 4 This is a structural schematic diagram of the second pipe head assembly of the utility model.

[0022] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of part A.

[0023] The accompanying drawings are marked as follows: 1. pipe head assembly 1; 11. mounting seat 1; 12. connecting head; 13. connecting pipe; 14. internal thread; 15. external thread; 16. catheter 1; 2. pipe head assembly 2; 21. mounting seat 2; 22. internal thread sleeve; 23. external thread sleeve; 24. sealing member; 241. L-shaped oil channel; 242. slide rod 1; 243. piston 1; 244. pressure block; 245. spring; 246. clamping member; 2461. piston 2; 2462. slide rod 2; 2463. sealing plate; 25. catheter 2. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1 - Figure 4The utility model provides a casting pipe joint, including a pipe head assembly 1, the pipe head assembly 1 includes a mounting seat 11, one side of the mounting seat 11 is fixedly connected with a connector 12, the outer wall of the connector 12 is fixedly connected with an external thread 15, the inner wall of the connector 12 is fixedly connected with an internal thread 14, the inner side of the connector 12 is provided with a connecting pipe 13 concentrically arranged with the connecting head 12, one end of the connecting pipe 13 is fixedly connected with the mounting seat 11, the connecting head 12 is a circular ring structure, the inner diameter of the connecting head 12 is larger than the outer diameter of the connecting pipe 13, the other end of the connecting pipe 13 is provided with a pipe head assembly 2 connected with the connecting pipe 13, the pipe head assembly 22 includes a mounting seat 21, the mounting seat 11 and the mounting seat 21 are both annular structures, and the outer diameters of the two are the same, the mounting seat 2 An inner threaded sleeve 22 is fixedly connected to the outer edge of one side of 21, the inner wall of the inner threaded sleeve 22 is threadedly connected to the outer thread 15 of the connector 12, an outer threaded sleeve 23 is arranged concentrically with the inner threaded sleeve 22 on the inner side of the inner threaded sleeve 22, one end of the outer threaded sleeve 23 is fixedly connected to the mounting seat 21, the outer wall of the outer threaded sleeve 23 is threadedly connected to the inner thread 14 of the connector 12, the inner wall of the outer threaded sleeve 23 is slidably connected to the connecting pipe 13, the inner diameter of the outer threaded sleeve 23 is the same as the outer diameter of the connecting pipe 13, and the length of the connecting pipe 13 is greater than the length of the outer threaded sleeve 23; a conduit 16 is fixedly connected to the side of the mounting seat 11 away from the connector 12, and a conduit 25 is fixedly connected to the side of the mounting seat 21 away from the inner threaded sleeve 22, and the conduit 25 is arranged concentrically with the conduit 16.

[0026] By threading the external thread 15 of the connector 12 on the mounting seat 11 with the internal threaded sleeve 22, and at the same time threading the internal thread 14 of the connector 12 with the external threaded sleeve 23, the connecting pipe 13 can be slidably matched with the external threaded sleeve 23 and connected with the inner side of the mounting seat 21, so that the connecting pipe 13 is connected with the conduit 1 16, and then the conduit 25 is connected with the conduit 1 16. The connection of the entire pipe head is stably connected by multi-layer thread matching, which effectively avoids the problem of pipeline detachment under the action of external force.

[0027] Reference Figure 5, a plurality of seals 24 for sealing the outer wall of the connecting pipe 13 are arranged on the inner side of the mounting seat 21, and the plurality of seals 24 are distributed at equal angles around the mounting seat 21, and the seal 24 includes a piston 1 243, and an L-shaped oil passage 241 for filling oil is opened on the inner side of the mounting seat 21, and the piston 1 243 is slidably connected to the inner wall of the horizontal section of the L-shaped oil passage 241, and a sliding rod 1 242 is fixedly connected to one side of the piston 1 243, and the sliding rod 1 242 passes through the inner wall of the L-shaped oil passage 241 and extends to the outer side of the mounting seat 21, and the sliding rod 1 242 is slidably connected to the inner wall of the L-shaped oil passage 241, and the end of the sliding rod 1 242 away from the piston 1 243 is fixedly connected to a pressure block 244, and the connector 12 contacts the pressure block 244, and a spring is sleeved on one end of the sliding rod 1 242 245, one end of the spring 245 is in conflict with the pressure block 244, and the other end of the spring 245 is in conflict with the side wall of the mounting seat 21, and the horizontal section of the L-shaped oil channel 241 is provided with a clamping piece 246 that is tightly attached to the outer wall of the connecting pipe 13; the clamping piece 246 includes a sliding rod 2462, the sliding rod 2462 passes through the side wall of the vertical section of the L-shaped oil channel 241 and is slidably connected to the side wall of the L-shaped oil channel 241, the top of the sliding rod 2462 is fixedly connected with a piston 2461, the piston 2461 is slidably connected to the inner wall of the vertical section of the L-shaped oil channel 241, the bottom end of the sliding rod 2462 is fixedly connected with a sealing plate 2463, the sealing plate 2463 is in conflict with the outer wall of the connecting pipe 13, the sealing plate 2463 is an arc structure, and the inner wall of the sealing plate 2463 is fixedly connected with a rubber pad.

[0028] Working principle: During installation, first insert the connecting pipe 13 into the external threaded sleeve 23, and then rotate the mounting seat 21 to make the connecting head 12 rotate synchronously, which makes the external thread 15 of the connecting head 12 cooperate with the internal threaded sleeve 22, and at the same time, the internal thread 14 of the connecting head 12 cooperates with the external threaded sleeve 23, which makes the connecting head 12 contact with all the pressure blocks 244 and apply pressure to them, so that the pressure block 244 drives the slide bar 1 242 to slide into the L-shaped oil passage 241, and the piston 1 243 slides in the horizontal section of the L-shaped oil passage 241, so that the oil pressure in the horizontal section of the L-shaped oil passage 241 increases, and then the oil pressure in the vertical section of the L-shaped oil passage 241 increases synchronously, which makes the piston 2 2461 slide downward under the action of the oil pressure, and the slide bar 2462 drives the corresponding sealing plate 2463 to move and compress and seal the connecting pipe 13, which can greatly improve the sealing between the connecting pipe 13 and the conduit 25.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cast pipe joint, comprising a pipe head assembly (1), characterized in that: The pipe head assembly (1) comprises a mounting seat (11), one side of which is fixedly connected to a connector (12), an outer wall of the connector (12) is fixedly connected to an outer thread (15), an inner wall of the connector (12) is fixedly connected to an inner thread (14), a connecting pipe (13) arranged concentrically with the connecting pipe (12) is arranged on the inner side of the connector (12), one end of the connecting pipe (13) is fixedly connected to the mounting seat (11), and the other end of the connecting pipe (13) is provided with a pipe head assembly (2) connected to the connecting pipe (13).

2. A cast pipe joint according to claim 1, characterized in that: The connector (12) is a circular ring structure, and the inner diameter of the connector (12) is larger than the outer diameter of the connecting pipe (13).

3. A cast pipe joint according to claim 1, characterized in that: The second pipe head assembly (2) comprises a second mounting seat (21), an outer edge of one side of the second mounting seat (21) is fixedly connected with an internal thread sleeve (22), an inner wall of the internal thread sleeve (22) is threadedly connected with an external thread (15) of a connecting head (12), an inner side of the internal thread sleeve (22) is provided with an external thread sleeve (23) arranged concentrically with the internal thread sleeve (22), one end of the external thread sleeve (23) is fixedly connected with the second mounting seat (21), an outer wall of the external thread sleeve (23) is threadedly connected with an internal thread (14) of the connecting head (12), and an inner wall of the external thread sleeve (23) is slidably connected with the connecting pipe (13).

4. A cast pipe joint according to claim 3, characterized in that: The mounting seat 1 (11) and the mounting seat 2 (21) are both annular structures, and their outer diameters are the same.

5. A cast pipe joint according to claim 3, characterized in that: The inner diameter of the external threaded sleeve (23) is the same as the outer diameter of the connecting pipe (13), and the length of the connecting pipe (13) is greater than the length of the external threaded sleeve (23).

6. A cast pipe joint according to claim 3, characterized in that: A plurality of sealing members (24) for sealing the outer wall of the connecting pipe (13) are arranged on the inner side of the second mounting seat (21), and the plurality of sealing members (24) are distributed at equal angles around the second mounting seat (21).

7. A cast pipe joint according to claim 6, characterized in that: The sealing member (24) comprises a piston 1 (243). An L-shaped oil passage (241) for filling oil is provided on the inner side of the mounting seat 2 (21). The piston 1 (243) is slidably connected to the inner wall of the horizontal section of the L-shaped oil passage (241). A sliding rod 1 (242) is fixedly connected to one side of the piston 1 (243). The sliding rod 1 (242) passes through the inner wall of the L-shaped oil passage (241) and extends to the outer side of the mounting seat 2 (21). The sliding rod 1 (242) is slidably connected to the inner wall of the L-shaped oil passage (241). The sliding rod (242) is dynamically connected, one end of the sliding rod (242) away from the piston (243) is fixedly connected with a pressure block (244), the connecting head (12) contacts the pressure block (244), one end of the sliding rod (242) is sleeved with a spring (245), one end of the spring (245) contacts the pressure block (244), and the other end of the spring (245) contacts the side wall of the mounting seat (21), and the horizontal section of the L-shaped oil channel (241) is provided with a clamping piece (246) that is tightly attached to the outer wall of the connecting pipe (13).

8. A cast pipe joint according to claim 7, characterized in that: The clamping member (246) includes a second slide bar (2462), which passes through the side wall of the vertical section of the L-shaped oil channel (241) and is slidably connected to the side wall of the L-shaped oil channel (241). The top end of the second slide bar (2462) is fixedly connected to a second piston (2461), and the second piston (2461) is slidably connected to the inner wall of the vertical section of the L-shaped oil channel (241). The bottom end of the second slide bar (2462) is fixedly connected to a sealing plate (2463), and the sealing plate (2463) contacts the outer wall of the connecting pipe (13).

9. A cast pipe joint according to claim 8, characterized in that: The sealing plate (2463) has an arc-shaped structure, and a rubber pad is fixedly connected to the inner wall of the sealing plate (2463).

10. A cast pipe joint according to claim 3, characterized in that: A side of the mounting seat 1 (11) away from the connector (12) is fixedly connected to a conduit 1 (16), and a side of the mounting seat 2 (21) away from the internal threaded sleeve (22) is fixedly connected to a conduit 2 (25), and the conduit 2 (25) is arranged concentrically with the conduit 1 (16).

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