Anti-degumming pipe clamping structure and hose connector

Abstract

The anti-degumming pipe clamping structure comprises a clamping sleeve, the upper portion of the clamping sleeve is a clamping part, the outer wall of the clamping part is provided with a section of external threads, the outer wall of the clamping part at the end of the external threads is provided with a limiting protrusion, the inner wall of the clamping part is provided with inner anti-disengaging lines, and the outer diameter of the lower portion of the clamping sleeve is smaller than that of the external threads. The nut is used for locking the clamping part; the nut is detachably connected with the external thread of the clamping part; and the fixing piece is used for locking the position of the nut. The utility model further provides a hose connector applying the anti-degumming hose clamping structure, the hose connector clamps the hose in a nut screwing mode, a fixing piece is arranged at the tail of the nut, and the nut can be effectively prevented from loosening and falling off after being used for a long time.

Description

Technical Field

[0001] The utility model belongs to the field of pipeline connection, and in particular relates to a pipeline clamping structure, an anti-debonding pipe clamping structure and a pipe joint. Background Art

[0002] The Chinese patent (announcement number: CN221171257U, announcement date: 2024.06.18) provides a high-pressure hose connector and a hose connection structure using the connector. The petal structure clamp is connected by a bolt assembly to form an integral joint clamp. The outer clamping teeth group of the clamp presses the hose body wall tightly, and a safety step is provided at the end of the clamp to prevent it from falling off.

[0003] The petal-shaped clamp is difficult to install and remove during use, and cannot be used for emergency pipe connections. The current quick-twist hose connector uses a nut to tighten the contact part between the connector and the hose to achieve the effect of clamping the hose, but the pipe structure connected in this way will gradually loosen the nut after long-term use, and the hose and connector are prone to fall off, resulting in liquid leakage, causing certain cost losses. Summary of the invention

[0004] The utility model aims to overcome the above-mentioned deficiencies of the prior art and provide an anti-debonding pipe clamping structure, which is easy to use, quick to install and disassemble, and suitable for emergency pipeline connection.

[0005] Another object of the utility model is to provide a hose connector.

[0006] The technical solution of the utility model is:

[0007] The upper part of the jacket is a clamping part for clamping the outer wall of the hose inserted outside the end of the joint body, the outer wall of the clamping part is provided with a section of external thread, the outer wall of the clamping part at the end of the external thread has a limited position protrusion, the inner wall of the clamping part has an inner anti-slip pattern, and the outer diameter of the lower part of the jacket is smaller than the outer diameter of the external thread;

[0008] Also included is a nut for locking the clamping portion, the nut being detachably connected to the external thread of the clamping portion;

[0009] A retainer for the lock nut position is also included.

[0010] The fixing part comprises a fixing ring and bolts, wherein the fixing ring is radially provided with bolts; the inner diameter of the fixing ring is larger than the outer diameter of the external thread; and the outer wall of the lower end of the jacket is provided with a bottom thread for fixing with the joint body.

[0011] The fixing ring has more than two screw holes radially, and bolts are installed in the screw holes; when the nut is rotated along the external thread until it contacts the limiting protrusion, the fixing ring sleeved outside the sleeve moves to the end face of the nut, and the bolt is rotated until the end of the bolt is stuck in the slot of the clamping part, and the nut position is locked.

[0012] The clamping part is formed by a plurality of jaws arranged in a circular pattern. Each jaw has the external thread on its outer wall, and a limiting protrusion protruding outward on the outer wall of the jaw head. Each jaw has an internal anti - detachment texture on its inner wall; the gap between two adjacent jaws forms a slot for clamping the bolt, and the bottom of the slot is an arc - shaped structure adapted to the outer diameter of the bolt.

[0013] The clamping sleeve is a stepped structure, including a thick sleeve part located in the upper part, a thin sleeve part located in the lower part, and a rounded corner part between the thick sleeve part and the thin sleeve part. The outer wall of the upper end opening of the thick sleeve part is chamfered to form a chamfered part. The outer wall of the thick sleeve part at the lower end of the chamfered part has an external thread, and the outer wall of the thin sleeve part is smooth; a limiting protrusion is formed on the lower end surface of the chamfered part; the inner diameter of the thick sleeve part is larger than the inner diameter of the thin sleeve part; the outer diameter of the thick sleeve part is larger than the outer diameter of the thin sleeve part;

[0014] The thick sleeve part is the clamping part. The thick sleeve part is formed by a plurality of jaws arranged in a circular pattern. Each jaw has an external thread on its outer wall. The gap between the roots of two adjacent jaws forms a slot for clamping the bolt, and the bottom of the slot is an arc - shaped structure adapted to the outer diameter of the bolt; each jaw has an internal anti - detachment texture corresponding to the external anti - detachment texture.

[0015] A hose joint includes a joint body and the above - mentioned anti - detachment hose clamping structure connected to the end of the joint body.

[0016] The joint body is a circular tubular structure. There is a sealing ring at the upper end of the joint body. There is a section of external anti - detachment texture corresponding to the internal anti - detachment texture on the outer wall of the joint body below the sealing ring. There is a mounting seat in the middle of the joint body, and a groove for positioning the clamping sleeve is provided on the mounting seat; there is a thread for connection at the lower end of the joint body.

[0017] The flange extending radially outward in the middle of the joint body forms the mounting seat. The side wall of the mounting seat is provided with a plurality of mounting planes for easy installation. The radial cross - section of the mounting seat is polygonal, and the outer wall of the joint body between the external anti - detachment texture and the mounting seat is smooth; the groove is an annular groove. The outer groove wall of the annular groove has an external thread adapted to the bottom thread on the outer wall of the lower end of the clamping sleeve, and the diameter of the inner groove wall of the annular groove is the same as the inner diameter of the lower end of the clamping sleeve.

[0018] When clamping, the nut is screwed axially upward along the external thread of the clamping sleeve. Since the inner diameter of the nut is smaller than the outer diameter of the external thread of the clamping sleeve, the jaws contract inward to clamp the hose. The internal anti - detachment texture of the jaws and the external anti - detachment texture of the joint body are clamped against each other, which can increase the friction between the joint and the inner wall of the hose and jointly play a role in clamping the hose. When the nut is screwed until the upper end surface of the nut abuts against the limiting protrusion formed by the lower end surface of the chamfered part, the fixing ring moves upward to the lower end surface of the nut. The bolt is installed at three screw holes in the radial direction of the fixing ring. Turn the three bolts so that the bolts pass through the screw holes of the fixing ring and are stuck at the bottom of the slot between two adjacent jaws, thereby limiting the position of the fixing ring and further preventing the nut from loosening and sliding down.

[0019] The connector body of the utility model is a four-layer pagoda-shaped connector structure, which is inserted into the interior of the hose structure when in use. A sealing ring is provided at the top of the connector to prevent liquid leakage. A groove with a thread is provided in the middle of the connector body to fix the clamping structure. Secondly, after the bottom end of the clamping structure with a thread is screwed into the groove, a nut with an outer diameter smaller than the outer thread is screwed upward to tighten the clamping structure inward, and the inner anti-slip lines of the clamping structure and the pagoda-shaped protrusion of the connector are clamped together to clamp the hose. Finally, when the nut is tightened, the fixing ring is dragged upward to the tail end of the nut, and the bolt is screwed so that the bolt passes through the screw hole of the fixing ring and is stuck in the middle of the slot between the two adjacent clamping claws, thereby limiting the position of the fixing ring and preventing the nut from loosening and sliding down. The utility model clamps the hose by twisting the nut, and a fixing ring is provided at the tail of the nut, which can effectively prevent the nut from loosening and falling off during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the hose connector of the utility model;

[0021] Figure 2 It is a schematic diagram of the assembly of the joint body and the jacket;

[0022] Figure 3 It is a cross-sectional view of the hose connector of the utility model;

[0023] Figure 4 It is a schematic diagram of the joint body;

[0024] Figure 5 It is a schematic diagram of the assembly of the jacket and the fixing ring. DETAILED DESCRIPTION

[0025] Figures 1-5 In the embodiment, the hose connector of the utility model comprises four components, namely a connector body 11, a nut 9, a jacket 13, and a fixing member. The fixing member comprises a fixing ring 10 and a bolt 5.

[0026] The joint body 11 is a circular tubular structure. A sealing ring 1 is sleeved on the outer wall of the upper end of the joint body. The outer wall of the joint body 11 below the sealing ring 1 has an outer anti-slipping pattern. The middle part of the joint body 11 has a mounting seat 12 formed by a flange extending radially outward. The side wall of the mounting seat 12 is provided with a plurality of mounting planes 18 for easy installation. The radial cross section of the mounting seat 12 is polygonal. The outer wall of the joint body 11 between the outer anti-slipping pattern and the mounting seat 12 is smooth (i.e., there is no anti-slipping pattern). The upper surface of the mounting seat 12 is provided with a groove 3, which is used to fix the jacket 13. The groove 3 is an annular groove. The outer groove wall of the annular groove has an external thread that matches the bottom thread 7 of the outer wall of the lower end of the jacket 13. The inner groove wall diameter of the annular groove is the same as the inner diameter of the lower end of the jacket 13. The lower end of the joint body 11 has a thread 4, which connects the hose joint to the joint fixing part of the conveying equipment such as the fuel dispenser.

[0027] The jacket 13 has a stepped structure, including a thick sleeve part 14 at the upper part, a thin sleeve part 15 at the lower part, a rounded corner part 16 between the thick sleeve part 14 and the thin sleeve part 15. The outer wall of the upper end opening of the thick sleeve part is chamfered to form a chamfer part 17. There is an external thread on the outer wall of the thick sleeve part 14 at the lower end of the chamfer part 17, and the outer wall of the thin sleeve part 15 is smooth. A limit protrusion is formed on the lower end surface of the chamfer part 17. The inner diameter of the thick sleeve part 14 is larger than the inner diameter of the thin sleeve part 15. The outer diameter of the thick sleeve part 14 is larger than the outer diameter of the thin sleeve part 15.

[0028] The thick sleeve part 14 is a clamping part, and the thick sleeve part 14 is formed by a plurality of clamping claws 8 arranged in a circumferential manner. There is an external thread on the outer wall of each clamping claw 8. The gap between the roots of adjacent two clamping claws 8 forms a clamping groove for the clamping bolt 5, and the bottom of the clamping groove is an arc-shaped structure 19 adapted to the outer diameter of the bolt 5. There is an internal anti-loosening thread on the inner wall of each clamping claw 8 corresponding to the external anti-loosening thread.

[0029] When the jacket 13 is screwed into the groove 3 on the upper surface of the mounting seat 12 of the joint body 11 through the bottom thread 7, a receiving groove for accommodating the rubber hose is formed between the jacket 13 and the joint body 11.

[0030] The inner diameter of the nut 9 is smaller than the outer diameter of the external thread of the jacket 13. There are three screw holes 6 in the radial direction of the fixing ring 10. The bolt 5 inserted into the screw hole 6 is stuck at the bottom of the clamping groove between adjacent two clamping claws. The position of the fixing ring 10 is fixed, and the inner diameter of the fixing ring 10 is larger than the outer diameter of the external thread.

[0031] During installation, first put the jacket 13, the nut 9, and the fixing ring 10 of the anti-loosening rubber hose clamping structure on the outside of the rubber hose from the end of the rubber hose. Then insert the top end of the joint body 11 into the inside of the rubber hose port until the rubber hose port abuts against the upper surface of the mounting seat 12. Move the nut 9 and the fixing ring 10 to the upper surface of the mounting seat 12 of the joint body 11. Screw the lower end of the jacket 13 through the inner rings of the nut 9 and the fixing ring 10 into the groove 3 on the upper surface of the mounting seat 12 of the joint body 11 through the bottom thread 7. A receiving groove for accommodating the rubber hose is formed between the jacket 13 and the joint body 11.

[0032] When clamping, the nut 9 is screwed upward along the axial direction of the external thread of the jacket 13. Since the inner diameter of the nut 9 is smaller than the outer diameter of the external thread of the jacket 13, the clamping jaws 8 shrink inward to clamp the hose. The inner anti-slipping lines of the clamping jaws 8 and the outer anti-slipping lines of the joint body clamp each other, which can increase the friction between the joint and the inner wall of the hose, and play a role in clamping the hose together. When the nut 9 is screwed until the upper end face of the nut 9 and the limiting protrusion formed by the lower end face of the chamfered portion 17 abut against each other, the fixing ring 10 moves upward to the lower end face of the nut 9, and the bolts 5 are installed at three screw holes 6 on the radial direction of the fixing ring 10. The three bolts 5 are screwed to make the bolts pass through the screw holes of the fixing ring and get stuck at the bottom of the slot between the two adjacent clamping jaws, thereby limiting the position of the fixing ring 10 and preventing the nut 9 from loosening and sliding down. Since the upper and lower end faces of the nut 9 are both limited, the nut 9 is prevented from loosening and falling off during operation.

[0033] After the rubber hose placed in the accommodating space is clamped by the anti-stripping rubber hose clamping structure, the hose connector is connected to the connector fixing part of the fuel dispenser and other conveying equipment through the thread 4 at the lower end of the connector body 11. The sealing ring 1 set on the outer wall of the upper port of the connector body can effectively prevent leakage during liquid delivery.

[0034] Figure 4 In the figure, the joint body 11 has a sealing ring 1, a pagoda outer protrusion (i.e., an outer anti-slip pattern) 2, a groove 3 with a thread, and a thread 4 at the lower end of the joint body 11 from top to bottom. A mounting seat 12 is provided in the middle of the joint body 11, and a groove 3 for positioning the jacket is provided on the mounting seat 12. When in use, the top end of the joint body 11 is inserted into the inside of the hose.

[0035] Figure 5 When the clamping structure is installed, the nut 9 and the fixing ring 10 are inserted into the lower end of the jacket 13 in sequence to form the clamping structure, and then the clamping structure is installed on the joint body 11.

Claims

1. A tube clamping structure for preventing debonding, characterized in that: include A jacket (13), the upper part of the jacket (13) is a clamping part for clamping the outer wall of the hose inserted outside the end of the joint body (11), the outer wall of the clamping part is provided with a section of external thread, the outer wall of the clamping part at the end of the external thread has a limiting protrusion, the inner wall of the clamping part has an inner anti-slip pattern, and the outer diameter of the lower part of the jacket is smaller than the outer diameter of the external thread; It also includes a nut (9) for locking the clamping portion, the nut (9) being detachably connected to the external thread of the clamping portion; Also included is a fixing for locking the nut (9) in position.

2. The anti-debonding tube clamping structure according to claim 1 is characterized in that: The fixing member comprises a fixing ring (10) and a bolt (5), wherein the fixing ring (10) is radially provided with the bolt (5); the inner diameter of the fixing ring (10) is larger than the outer diameter of the external thread; and the outer wall of the lower end of the jacket (13) is provided with a bottom thread (7) for fixing to the joint body (11).

3. The anti-debonding tube clamping structure according to claim 2 is characterized in that: The fixing ring (10) has more than two screw holes (6) in the radial direction, and the bolts (5) are installed in the screw holes (6); when the nut (9) is screwed along the external thread until it contacts the limiting protrusion, the fixing ring (10) sleeved on the outside of the clamping sleeve (13) moves to the end face of the nut (9), and the bolt (5) is rotated until the end of the bolt (5) is clamped in the clamping groove of the clamping part, and the position of the nut (9) is locked.

4. The anti-debonding tube clamping structure according to claim 3 is characterized in that: The clamping portion is formed by a plurality of clamping jaws (8) arranged in a ring pattern, the outer wall of each clamping jaw having the external thread, the outer wall of the clamping jaw head having a limiting protrusion protruding outward, and the inner wall of each clamping jaw having an inner anti-slip pattern; the gap between two adjacent clamping jaws forms a clamping groove for clamping the bolt (5), and the bottom of the clamping groove is an arc-shaped structure adapted to the outer diameter of the bolt (5).

5. The anti-debonding tube clamping structure according to claim 1, characterized in that: The jacket (13) is a step-shaped structure, comprising a coarse jacket portion (14) located at the top, a thin jacket portion (15) located at the bottom, a rounded portion (16) located between the coarse jacket portion (14) and the thin jacket portion (15), an outer wall of the jacket opening at the top end of the coarse jacket portion is chamfered to form a chamfered portion (17), an outer wall of the coarse jacket portion (14) at the bottom end of the chamfered portion (17) has an external thread, and an outer wall of the thin jacket portion (15) is smooth; a limiting protrusion is formed on the lower end surface of the chamfered portion (17); the inner diameter of the coarse jacket portion (14) is greater than the inner diameter of the thin jacket portion (15); and the outer diameter of the coarse jacket portion (14) is greater than the outer diameter of the thin jacket portion (15); The thick sleeve portion (14) is a clamping portion, and is formed by a plurality of clamping jaws (8) arranged in a ring pattern. The outer wall of each clamping jaw (8) has an external thread, and the gap between the claw roots of two adjacent clamping jaws (8) forms a clamping groove for clamping the bolt (5), and the bottom of the clamping groove is an arc-shaped structure (19) that matches the outer diameter of the bolt (5); the inner wall of each clamping jaw (8) has an inner anti-slipping pattern corresponding to the outer anti-slipping pattern.

6. A hose connector, characterized in that: The invention comprises a joint body and an anti-debonding tube clamping structure as claimed in any one of claims 1 to 5 connected to the end of the joint body.

7. The hose connector according to claim 6, characterized in that: The joint body (11) is a circular tubular structure, with a sealing ring (1) at the upper end of the joint body, an outer wall of the joint body (11) below the sealing ring (1) having an outer anti-slip pattern corresponding to the inner anti-slip pattern, a mounting seat (12) at the middle of the joint body (11), a groove (3) for positioning the jacket being provided on the mounting seat (12); and a thread (4) for connection is provided at the lower end of the joint body (11).

8. The hose connector according to claim 7, characterized in that: A flange extending radially outward from the middle of the joint body (11) forms a mounting seat (12), and a plurality of mounting planes (18) are provided on the side wall of the mounting seat (12) for easy installation. The radial cross section of the mounting seat (12) is polygonal, and the outer wall of the joint body (11) between the outer anti-slip pattern and the mounting seat (12) is smooth; the groove (3) is an annular groove, and the outer groove wall of the annular groove has an external thread that matches the bottom thread (7) of the outer wall of the lower end of the lower part of the jacket (13), and the inner groove wall diameter of the annular groove is the same as the inner diameter of the lower end of the jacket (13).

9. The hose connector according to claim 6, characterized in that: When clamping, the nut (9) is screwed upward along the axial direction of the external thread of the jacket (13). Since the inner diameter of the nut (9) is smaller than the outer diameter of the external thread of the jacket (13), the clamping jaws (8) shrink inward to clamp the rubber hose. The inner anti-slip grooves of the clamping jaws (8) and the outer anti-slip grooves of the joint body clamp each other, which can increase the friction between the joint and the inner wall of the rubber hose and play a role in clamping the rubber hose. When the nut (9) is screwed until the limiting protrusion formed by the upper end face of the nut (9) and the lower end face of the chamfered portion (17) abut against each other, the fixing ring (10) moves upward to the lower end face of the nut (9). The bolts (5) are installed at three screw holes (6) on the radial direction of the fixing ring (10). The three bolts (5) are screwed so that the bolts pass through the screw holes of the fixing ring and are clamped at the bottom of the groove between the two adjacent clamping jaws, thereby limiting the position of the fixing ring (10) and preventing the nut (9) from loosening and sliding down.

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