Self-sealing type hoop device for raw material conveying pipeline

Abstract

The invention belongs to the technical field of pipeline connection, and particularly relates to a self-sealing hoop device for a raw material conveying pipeline, which comprises an upper half hoop and a lower half hoop which can be hooped together, round holes are formed in ear parts at two ends of the upper half hoop and the lower half hoop, and a same bolt is inserted between two mutually overlapped round holes. A nut used for fixing the upper half hoop and the lower half hoop is connected to the bolt in a threaded mode, a plurality of clamping openings distributed in an annular array mode are formed in the outer wall of the circumference of the nut, a U-shaped guide frame is fixed to the lug portion, and an anti-loosening inserting rod is inserted into the guide frame and elastically connected with the guide frame. According to the anti-loosening device, the nut starts to rotate after loosening, when one bayonet adjacent to the anti-loosening insertion rod is aligned with the anti-loosening insertion rod, the inner end of the anti-loosening insertion rod is inserted into the bayonet under the elastic force action of the spring, or after the nut is screwed, the position of one bayonet is just aligned with the anti-loosening insertion rod, and the anti-loosening insertion rod can be directly inserted into the bayonet; therefore, the nut is prevented from loosening.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline connection, in particular to a self-sealing clamp device for a raw material conveying pipeline. Background Art

[0002] The clamp is a connection device for connecting grooved pipes, valves and pipeline accessories. It is used to tighten the connection between quick connectors. Generally, the connector is equipped with gaskets, rubber, silicone and PTFE. It has good performance, high sealing and easy installation.

[0003] In order to solve the problem that "the existing pipe connectors make the connection between pipes not tight enough", the patent with publication number CN216520103U discloses a high-strength clamp-type pipe connector, including a first pipe, a clamp and a second pipe, the first pipe is fixedly connected to the second pipe through the clamp, the clamp includes a first connecting half ring and a second connecting half ring, the first connecting half ring is threadedly connected to the second connecting half ring through a threaded connecting rod, both sides of the first connecting half ring are fixedly connected to the first connecting head, the middle of the first connecting head and the middle of the second connecting head are provided with threaded holes, both sides of the bottom end of the first connecting half ring and both sides of the bottom end of the second connecting half ring are fixedly connected with elastic rubber clips, the utility model is a high-strength clamp-type pipe connector, by providing a card slot and an elastic rubber clip, it is convenient to connect the first pipe and the second pipe, and a threaded connecting rod and a connecting head are provided to strengthen the connection between the first pipe and the second pipe. Although the existing technical problems have been solved, the following problems still exist: The pipe connector in this technical solution is similar to most clamp structures on the market, in that two half-ring clamps are fixed together by bolts and nuts. However, since the bolts and washers in the clamp connection are easily affected by external factors, such as vibration, trend force, etc., loose bolts will cause the pipe connection to loosen, thereby affecting the operation of the pipeline system. Therefore, corresponding improvements are made to this problem, and a self-sealing clamp device for raw material conveying pipelines is proposed to avoid loose bolts. Summary of the invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a self-sealing clamp device for a raw material conveying pipeline.

[0005] The self-sealing clamp device for a raw material conveying pipeline proposed by the present invention comprises an upper half hoop and a lower half hoop that can be embraced together, circular holes are provided on the ears at both ends of the upper half hoop and the lower half hoop, a same bolt is inserted between the two overlapping circular holes, a nut for fixing the upper half hoop and the lower half hoop is threadedly connected on the bolt, a plurality of bayonet holes distributed in a circular array are provided on the circumferential outer wall of the nut, a U-shaped guide frame is fixed on the ear, an anti-loosening rod is inserted in the guide frame, the anti-loosening rod is elastically connected to the guide frame, the inner end of the anti-loosening rod is pressed against the circumferential outer wall of the nut under the action of elastic force, the nut starts to rotate after being loosened, when a bayonet hole adjacent to the anti-loosening rod is aligned with the anti-loosening rod, the inner end of the anti-loosening rod is inserted into the bayonet hole under the action of elastic force, thereby preventing the nut from continuing to loosen.

[0006] Preferably, a T-shaped storage opening is provided on the guide frame, a T-shaped docking rod is inserted into the storage opening, and a docking groove for inserting the docking rod is provided at the bottom of the anti-loosening rod. The anti-loosening rod is pulled outward along the guide frame, and when the docking groove and the storage opening are aligned, the docking rod is pushed upward and inserted into the docking groove to fix the anti-loosening rod.

[0007] Preferably, the docking rod comprises a detachable anti-detachment part and a main rod, a stud is provided at the top end of the main rod, a thread groove is provided at the bottom end of the anti-detachment part, and the anti-detachment part is threadedly connected to the top end of the main rod through the thread groove and the stud.

[0008] Preferably, a clearance groove is provided in the middle position of the inner arc surface of the upper half hoop and the lower half hoop, and a pair of flanges are distributed on both sides of the clearance groove on the inner arc surface of the upper half hoop and the lower half hoop, so that the clamp forms a groove connection with the groove on the pipe to prevent the clamp from moving around the axial direction of the pipe.

[0009] Preferably, at least one protrusion is provided on the inner arc surface of the flange, and a groove matching the protrusion is provided in the groove of the pipe to prevent the clamp from rotating around the circumferential direction of the pipe.

[0010] Preferably, it also includes a supporting mechanism that is detachably connected under the clamp, which is used to support the clamp at the pipe connection. The supporting mechanism includes a pad, a movable groove is opened on the pad, a pair of movable blocks are slidably connected in the movable groove, a support rod for supporting the clamp is rotatably connected to the top of the movable block, a bidirectional screw is rotatably connected in the movable groove, the bidirectional screw and the movable block form a threaded connection, the supporting mechanism is installed on the clamp, and the bidirectional screw is rotated to make the movable blocks move closer to each other, and the support rods move closer in the vertical direction until the bottom of the pad is pressed against the ground to support the clamp.

[0011] Preferably, a pair of sleeves are fixed to the outer arc surface of the lower half hoop, and a plug that can be inserted into the sleeve is fixed to the top of the support rod. The plug is provided with an external thread, and the plug is threadedly connected to a screw sleeve through the external thread.

[0012] Compared with the prior art, the present invention provides a self-sealing clamp device for a raw material conveying pipeline, which has the following beneficial effects: 1. A self-sealing clamp device for a raw material conveying pipeline is provided with an anti-loosening plug rod. When the nut is tightened, the inner end of the anti-loosening plug rod is pressed against the circumferential outer wall of the nut under the elastic force of the spring. The nut starts to rotate after being loosened. When a bayonet adjacent to the anti-loosening plug rod is aligned with the anti-loosening plug rod, the inner end of the anti-loosening plug rod is inserted into the bayonet under the elastic force of the spring, thereby preventing the nut from further loosening. Alternatively, when the nut is tightened, the position of one of the bayonet holes is just aligned with the anti-loosening plug rod. Under the elastic force of the spring, the anti-loosening plug rod is directly inserted into the bayonet hole, thereby preventing the nut from loosening.

[0013] 2. A self-sealing clamp device is used for the raw material conveying pipeline. By setting a docking rod, the anti-loosening rod is pulled outward along the guide frame. When the docking groove and the receiving port are aligned, the docking rod is pushed upward and inserted into the docking groove to fix the anti-loosening rod. In this way, when the nut is tightened, the anti-loosening rod will not hinder it. When the nut is tightened, the docking rod is pulled out of the docking groove to release the fixation of the anti-loosening rod. The top end of the docking rod enters the receiving port and will not fall from the receiving port.

[0014] 3. A self-sealing clamp device is used for the raw material conveying pipeline. A docking rod consisting of a detachable anti-slip part and a main rod is provided. When installing the docking rod, it is only necessary to insert the main rod from the bottom end of the receiving port and insert the anti-slip part from the top end of the receiving port. Then, the main rod can be rotated to install the docking rod into the receiving port.

[0015] 4. The self-sealing clamp device for the raw material conveying pipeline is provided with a flange so that the clamp forms a groove connection with the groove on the pipeline, so that the clamp can be prevented from moving around the axial direction of the pipeline. By providing a bump and a groove, the clamp can be prevented from rotating around the circumferential direction of the pipeline after the installation is completed.

[0016] 5. The self-sealing clamp device is used for the raw material conveying pipeline. By setting up a supporting mechanism, the plunger is inserted into the casing, and then the screw sleeve is tightened onto the plunger. In this way, the supporting mechanism can be installed on the clamp. The bidirectional screw is rotated to make the movable blocks move closer to each other, and the support rod is moved closer in the vertical direction, so that the pad moves downward until the bottom of the pad is close to the ground. In this way, the clamp can be supported, thereby effectively preventing the clamp from loosening and causing water leakage at the pipe connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the self-sealing clamp device for the raw material conveying pipeline proposed by the present invention; Figure 2This is a schematic diagram of the lower half hoop structure of the self-sealing clamp device for the raw material conveying pipeline proposed by the present invention; Figure 3 This is a schematic diagram of the bottom structure of the lower half of the self-sealing clamp device for the raw material conveying pipeline proposed by the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of the proposed self-sealing clamp device for raw material conveying pipeline at point A; Figure 5 A schematic diagram of the installation structure between the guide frame and the anti-loosening plug rod of the self-sealing clamp device for the raw material conveying pipeline proposed by the present invention; Figure 6 This is a schematic cross-sectional view of the guide frame of the self-sealing clamp device for the raw material conveying pipeline proposed by the present invention; Figure 7 A schematic diagram of the composition structure of the butt joint rod of the self-sealing clamp device for the raw material conveying pipeline proposed by the present invention; Figure 8 This is a structural schematic diagram of a support mechanism of a self-sealing clamp device for a raw material conveying pipeline proposed by the present invention; Fig. 9 This is a schematic diagram of the installation structure between the support rod and the lower half hoop of the self-sealing clamp device for the raw material conveying pipeline proposed by the present invention.

[0018] In the figure: 1. upper hoop; 2. lower hoop; 3. round hole; 4. bolt; 5. nut; 6. bayonet; 7. guide frame; 8. anti-loosening plug rod; 9. spring; 10. docking groove; 11. storage port; 12. docking rod; 1201, anti-slip part; 1202, main rod; 13. threaded groove; 14. stud; 15. clearance groove; 16. flange; 17. protrusion; 18. ear; 19. pad; 20. movable groove; 21. movable block; 22. support rod; 23. bidirectional screw; 24. sleeve; 25. plug rod; 26. screw sleeve; 27. external thread. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] Example Reference Figure 1-9 A self-sealing clamp device for a raw material conveying pipeline comprises an upper half hoop 1 and a lower half hoop 2 which can be embraced together, circular holes 3 are provided on the ears 18 at both ends of the upper half hoop 1 and the lower half hoop 2, a bolt 4 is inserted between the two overlapping circular holes 3, a nut 5 for fixing the upper half hoop 1 and the lower half hoop 2 is threadedly connected on the bolt 4, a plurality of bayonet holes 6 distributed in an annular array are provided on the circumferential outer wall of the nut 5, a U-shaped guide frame 7 is fixed on the ear 18, an anti-loosening plug rod 8 is inserted in the guide frame 7, and the anti-loosening plug rod 8 is connected to the guide frame 7 by a spring 9 Then, when the nut 5 is tightened, the inner end of the anti-loosening rod 8 rests on the circumferential outer wall of the nut 5 under the elastic force of the spring 9, and the nut 5 starts to rotate after being loosened. When a slot 6 adjacent to the anti-loosening rod 8 is aligned with the anti-loosening rod 8, the inner end of the anti-loosening rod 8 is inserted into the slot 6 under the elastic force of the spring 9, thereby preventing the nut 5 from continuing to loosen. Or when the nut 5 is tightened, the position of one of the slots 6 is just aligned with the anti-loosening rod 8. Under the elastic force of the spring 9, the anti-loosening rod 8 is directly inserted into the slot 6, thereby preventing the nut 5 from loosening.

[0022] Furthermore, a T-shaped receiving opening 11 is provided on the guide frame 7, a T-shaped docking rod 12 is inserted into the receiving opening 11, a docking groove 10 is provided at the bottom of the anti-loosening plug rod 8 for inserting the docking rod 12, the anti-loosening plug rod 8 is pulled outward along the guide frame 7, when the docking groove 10 and the receiving opening 11 are aligned, the docking rod 12 is pushed upward and inserted into the docking groove 10, the anti-loosening plug rod 8 is fixed, so that when the nut 5 is tightened, the anti-loosening plug rod 8 will not hinder it, when the nut 5 is tightened, the docking rod 12 is pulled out of the docking groove 10, the fixation of the anti-loosening plug rod 8 can be released, the top end of the docking rod 12 enters the receiving opening 11, and will not fall from the receiving opening 11.

[0023] Furthermore, the docking rod 12 includes a detachable anti-detachment part 1201 and a main rod 1202, a stud 14 is provided at the top end of the main rod 1202, a threaded groove 13 is provided at the bottom end of the anti-detachment part 1201, and the anti-detachment part 1201 is threadedly connected to the top end of the main rod 1202 through the threaded groove 13 and the stud 14. In this way, when installing the docking rod 12, it is only necessary to insert the main rod 1202 from the bottom end of the receiving port 11 and insert the anti-detachment part 1201 from the top end of the receiving port 11, and then rotate the main rod 1202 to install the docking rod 12 into the receiving port 11.

[0024] Furthermore, a clearance groove 15 is provided in the middle position of the inner arc surface of the upper half hoop 1 and the lower half hoop 2, and a pair of flanges 16 distributed on both sides of the clearance groove 15 are provided on the inner arc surface of the upper half hoop 1 and the lower half hoop 2, so that the clamp forms a groove connection with the groove on the pipe, thereby preventing the clamp from moving around the axial direction of the pipe.

[0025] Furthermore, at least one protrusion 17 is provided on the inner arc surface of the flange 16, and a groove matching the protrusion 17 is provided in the groove of the pipe, so that the clamp can be prevented from rotating around the circumference of the pipe after the clamp is installed.

[0026] Furthermore, it also includes a supporting mechanism that is detachably connected to the bottom of the clamp, and is used to support the clamp at the pipe connection. The supporting mechanism includes a pad 19, and a movable groove 20 is opened on the pad 19. A pair of movable blocks 21 are slidably connected in the movable groove 20. A support rod 22 for supporting the clamp is rotatably connected to the top of the movable block 21. A bidirectional screw 23 is rotatably connected in the movable groove 20. The bidirectional screw 23 forms a threaded connection with the movable block 21. The supporting mechanism is installed on the clamp, and the bidirectional screw 23 is rotated to make the movable blocks 21 move closer to each other, and the support rod 22 moves closer in the vertical direction, so that the pad 19 moves downward until the bottom of the pad 19 is close to the ground, so that the clamp can be supported, thereby effectively preventing the clamp from loosening and causing water leakage at the pipe connection.

[0027] Furthermore, a pair of sleeves 24 are fixed to the outer arc surface of the lower half hoop 2, and a plug 25 that can be inserted into the sleeve 24 is fixed to the top of the support rod 22. The plug 25 is provided with an external thread 27, and the plug 25 is threadedly connected with a screw sleeve 26 through the external thread 27. The plug 25 is inserted into the sleeve 24, and then the screw sleeve 26 is tightened onto the plug 25, so that the support mechanism can be installed on the clamp.

[0028] Working principle: when the nut 5 is tightened, the inner end of the anti-loosening plug rod 8 is pressed against the circumferential outer wall of the nut 5 under the elastic force of the spring 9, and the nut 5 starts to rotate after being loosened. When a bayonet 6 adjacent to the anti-loosening plug rod 8 is aligned with the anti-loosening plug rod 8, the inner end of the anti-loosening plug rod 8 is inserted into the bayonet 6 under the elastic force of the spring 9, thereby preventing the nut 5 from further loosening. Or, when the nut 5 is tightened, the position of one of the bayonet 6 is just aligned with the anti-loosening plug rod 8, and under the elastic force of the spring 9, the anti-loosening plug rod 8 is directly inserted into the bayonet 6, thereby preventing the nut 5 from loosening. When tightening the nut 5, the anti-loosening plug rod 8 is pulled outward along the guide frame 7. When the docking groove 10 and the receiving opening 11 are aligned, the docking rod 12 is pushed upward and inserted into the docking groove 10 to fix the anti-loosening plug rod 8. In this way, when the nut 5 is tightened, the anti-loosening plug rod 8 will not hinder it. When the nut 5 is tightened, the docking rod 12 is pulled out of the docking groove 10 to release the fixation of the anti-loosening plug rod 8. The top end of the docking rod 12 enters the receiving opening 11 and will not fall from the receiving opening 11. When installing the docking rod 12, it is only necessary to insert the main rod 1202 from the bottom end of the receiving opening 11, and insert the anti-dropping portion 1201 from the top end of the receiving opening 11, and then rotate the main rod 1202 to install the docking rod 12 into the receiving opening 11; Insert the plunger 25 into the sleeve 24, and then tighten the screw sleeve 26 onto the plunger 25, so that the support mechanism can be installed on the clamp, and the bidirectional screw 23 is rotated to make the movable blocks 21 move closer to each other, and the support rod 22 moves closer to the vertical direction, so that the pad 19 moves downward until the bottom of the pad 19 is close to the ground, so that the clamp can be supported, thereby effectively preventing the clamp from loosening and causing water leakage at the pipe connection.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-sealing clamp device for a raw material conveying pipeline, comprising an upper half clamp (1) and a lower half clamp (2) that can be held together, wherein the ears (18) at both ends of the upper half clamp (1) and the lower half clamp (2) are provided with round holes (3), a bolt (4) is inserted between the two overlapping round holes (3), a nut (5) for fixing the upper half clamp (1) and the lower half clamp (2) is threadedly connected to the bolt (4), and the characteristics are as follows: The nut (5) is provided with a plurality of bayonet holes (6) distributed in an annular array on the circumferential outer wall, a U-shaped guide frame (7) is fixed on the ear (18), an anti-loosening plug rod (8) is inserted into the guide frame (7), the anti-loosening plug rod (8) is elastically connected to the guide frame (7), the inner end of the anti-loosening plug rod (8) is pressed against the circumferential outer wall of the nut (5) under the action of elastic force, and the nut (5) starts to rotate after being loosened. When a bayonet hole (6) adjacent to the anti-loosening plug rod (8) and the anti-loosening plug rod (8) are aligned, the inner end of the anti-loosening plug rod (8) is inserted into the bayonet hole (6) under the action of elastic force, thereby preventing the nut (5) from continuing to loosen.

2. The self-sealing clamp device for a raw material conveying pipeline according to claim 1, characterized in that: The guide frame (7) is provided with a receiving opening (11) of a T-shaped structure, a docking rod (12) of a T-shaped structure is inserted into the receiving opening (11), and a docking groove (10) for inserting the docking rod (12) is provided at the bottom of the anti-loosening plug rod (8), the anti-loosening plug rod (8) is pulled outward along the guide frame (7), and when the docking groove (10) and the receiving opening (11) are aligned, the docking rod (12) is pushed upward and inserted into the docking groove (10), thereby fixing the anti-loosening plug rod (8).

3. The self-sealing clamp device for a raw material conveying pipeline according to claim 2, characterized in that: The docking rod (12) comprises a detachable anti-detachment portion (1201) and a main rod (1202); a stud (14) is provided at the top end of the main rod (1202); a threaded groove (13) is provided at the bottom end of the anti-detachment portion (1201); and the anti-detachment portion (1201) is threadedly connected to the top end of the main rod (1202) via the threaded groove (13) and the stud (14).

4. The self-sealing clamp device for a raw material conveying pipeline according to claim 1, characterized in that: A clearance groove (15) is provided in the middle of the inner arc surface of the upper half hoop (1) and the lower half hoop (2), and a pair of flanges (16) are provided on both sides of the clearance groove (15) on the inner arc surface of the upper half hoop (1) and the lower half hoop (2), so that the clamp forms a groove connection with the groove on the pipeline, so as to prevent the clamp from moving around the axial direction of the pipeline.

5. The self-sealing clamp device for a raw material conveying pipeline according to claim 4, characterized in that: The inner arc surface of the flange (16) is provided with at least one protrusion (17), and a groove matching the protrusion (17) is provided in the groove of the pipe to prevent the clamp from rotating around the circumference of the pipe.

6. The self-sealing clamp device for a raw material conveying pipeline according to claim 1, characterized in that: The invention also comprises a support mechanism which is detachably connected to the bottom of the clamp and is used to support the clamp at the pipe connection. The support mechanism comprises a pad (19). A movable groove (20) is formed on the pad (19). A pair of movable blocks (21) are slidably connected in the movable groove (20). A support rod (22) for supporting the clamp is rotatably connected to the top of the movable block (21). A bidirectional screw rod (23) is rotatably connected in the movable groove (20). The bidirectional screw rod (23) and the movable block (21) are threadedly connected. The support mechanism is mounted on the clamp and the bidirectional screw rod (23) is rotated so that the movable blocks (21) move closer to each other and the support rod (22) moves closer in the vertical direction until the bottom of the pad (19) is pressed against the ground, thereby supporting the clamp.

7. The self-sealing clamp device for a raw material conveying pipeline according to claim 6, characterized in that: A pair of sleeves (24) are fixed to the outer arc surface of the lower half hoop (2), and an insert rod (25) that can be inserted into the sleeve (24) is fixed to the top end of the support rod (22). The insert rod (25) is provided with an external thread (27), and the insert rod (25) is threadedly connected to a screw sleeve (26) via the external thread (27).

Images