A theft deterrent clamp assembly for a pipeline

Abstract

The utility model provides a kind of pipeline is prevented with theft clamp assembly, including clamp, the connecting lug of the clamp end is inserted with bolt, the nut is threadedly connected on the bolt, the connecting lug of the clamp is provided with threaded hole, and threaded hole is threadedly connected with screw rod, the inside of the screw rod is provided with installation groove, the inside of the installation groove is fixedly connected with V-shaped piece, the upper end of the V-shaped piece is fixedly connected with limit rod, the inside of the threaded hole is provided with clamping groove, and one end of limit rod extends into clamping groove.The utility model, existing two heavy theftproof structure, and rotating screw rod needs special wrench to rotate, improves the theftproof ability at clamp.

Description

Technical Field

[0001] This utility model relates to the field of clamp technology, and in particular to an anti-theft clamp assembly for pipelines. Background Technology

[0002] A clamp is a connecting device used to connect grooved pipe fittings, valves, and pipeline accessories. It is used to tighten the connection between quick couplings. Generally, the coupling has gaskets, rubber, silicone, and PTFE. It has good performance, high sealing, and is easy to install. It is a commonly used pipeline connection component. However, in oil extraction and transportation, in order to prevent the clamps of pipeline connections from being damaged by human intervention, the clamps need to have anti-theft functions.

[0003] The patent, titled "Anti-theft Clamp for Oil Wellhead," with application number CN201910146874.0, includes components such as studs, protective caps, fasteners, locking blocks, pressure pins, and opening keys. Through structures like fixing grooves and holes on the studs, the clamped studs are prevented from disengaging from the first and second screw holes, achieving a stable connection between the first and second clamp halves. However, this structure is relatively complex, resulting in high costs for both manufacturing and installation. Utility Model Content

[0004] To address the aforementioned problems, this utility model discloses an anti-theft clamp assembly for pipelines, comprising a clamp, a bolt inserted into a connecting lug at the end of the clamp, a nut threaded onto the bolt, a threaded hole on the connecting lug of the clamp, and a threaded rod threaded into the threaded hole. The threaded rod has an internal mounting groove, and a V-shaped component is fixedly connected inside the mounting groove. A limiting rod is fixedly connected to the upper end of the V-shaped component. A retaining groove is provided inside the threaded hole, and one end of the limiting rod extends into the retaining groove. When the stud is screwed into the threaded hole, the connection between the two clamps is achieved. The limiting rod on the V-shaped component extends into the retaining groove, restricting the rotation of the stud, thus preventing the screw from unscrewing and achieving anti-theft capability.

[0005] Preferably, the upper end of the screw is provided with a regular hexagonal groove. That is, when it is necessary to rotate the screw, an Allen wrench is used to rotate it in the rectifier deformation groove.

[0006] Preferably, the limiting rod has a first through hole, which is an elongated hole, and the inside of the regular hexagonal groove has a second through hole, which is located directly above the first through hole. If it is necessary to rotate the screw, the limiting rod needs to be disengaged from the slot. In this case, the Allen wrench needs to be modified by fixing a vertical insert to the end of the Allen wrench. The insert can pass through the second through hole and the first through hole in sequence, so that the end of the insert abuts against one side of the V-shaped part. The V-shaped part deforms, and the limiting rod can disengage from the slot, at which point the screw can be rotated.

[0007] Furthermore, by setting the dimensions of the V-shaped component, such as the opening angle of the V-shaped component and the height of the fixed limiting rod, a specified length of insert rod is required to disengage the limiting rod from the slot. If the insert rod is too short, it cannot contact the V-shaped component, or the deformation of the V-shaped component is limited, making it impossible to disengage the limiting rod from the slot. If the insert rod is too long, the deformation of the V-shaped component is too large, causing the other end of the limiting rod to insert into the slot on the other side. Therefore, only an insert rod of a specified length can disengage the limiting rod from the slot.

[0008] Preferably, a protective sleeve is fitted onto the connecting lug of the clamp. This protects the internal structure and reduces the ingress of dust, rainwater, etc.

[0009] Preferably, the protective sleeve has an opening on its side wall and forms a limiting strip. A protrusion is provided at the end of the limiting strip. The connecting ear of the clamp has a limiting groove on its side wall, and the protrusion engages with a groove at one end of the limiting groove. The protrusion and groove allow the protective sleeve to be fastened onto the connecting ear.

[0010] Preferably, the protective sleeve is provided with a pin, and the lower end of the pin is provided with a lead seal. The pin and lead seal are provided to further secure the protective sleeve, and also serve as an anti-theft measure, facilitating subsequent inspection.

[0011] The beneficial effects of this utility model are as follows: 1. The device is equipped with a screw, and the screw has a limit rod, V-shaped parts and other structures to limit the rotation of the screw, thereby playing an anti-theft role. In addition, the structure of this utility model is relatively simple.

[0012] 2. It is also equipped with a protective cover, along with a latch and lead seal, which not only protects the internal structure but also provides a second layer of protection.

[0013] 3. It is equipped with a first through hole and a second through hole. By setting a specified length of insert at the end of the Allen wrench, it abuts against the V-shaped part, so that the limit rod retracts into the mounting groove, and the screw can be rotated. The screw-rotating tool is easy to manufacture. In addition, there are requirements for the length of the insert, which improves the anti-theft capability. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the clamp connection ear of this utility model.

[0015] List of reference numerals in the attached diagram: 1. Protective sleeve; 2. Clamp; 3. Lead seal; 4. Limiting strip; 5. Pin; 6. Nut; 7. Bolt; 8. Screw; 9. Limiting rod; 10. V-shaped part; 11. Slot; 12. Limiting groove; 13. First through hole; 14. Second through hole; 15. Regular hexagonal groove; 16. Mounting groove. Detailed Implementation

[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0017] like Figures 1 to 3 As shown, a pipeline anti-theft clamp assembly includes clamps 2. Two clamps 2 are provided for clamping onto pipe fittings. A bolt 7 is inserted through the connecting ear at the end of the clamp 2. A nut 6 is threaded onto the bolt 7. That is, the bolt 7 passes through the connecting ear and is threaded onto the nut 6 to achieve fixation between the two clamps 2. The fixing connection of the bolt 7 and nut 6 is the main fixing structure of the two clamps 2.

[0018] The connecting ears of clamp 2 are provided with threaded holes, meaning that both connecting ears of clamp 2 are provided with threaded holes. The two threaded holes are positioned correspondingly, and a screw 8 is threaded into the threaded holes. The screw 8 further connects the two clamps 2. The function of the screw 8 here is to prevent theft. If clamp 2 needs to be removed, not only bolts 7 and nuts 8 need to be removed, but also screw 8 needs to be taken off. The screw 8 has a mounting groove 16 inside, meaning that a rectangular opening is provided through the lower part of the screw 8. A V-shaped piece 1 is fixedly connected inside the mounting groove 16. 0. The upper end of the V-shaped part 10 is fixedly connected to the limiting rod 9. One side of the V-shaped part 10 is fitted and fixed to the bottom of the mounting groove 16, while the other end is used to fix the limiting rod 9. The threaded hole is provided with a slot 11, and one end of the limiting rod 9 extends into the slot 11. At this time, the limiting rod 9 is in the initial state of being in the slot 11. If it is necessary to disassemble or install the screw 8, the limiting rod 9 needs to be disassembled from the slot 11. Otherwise, one end of the limiting rod 9 is in the slot 11, which restricts the rotation of the screw 8, thus achieving the anti-theft capability.

[0019] The upper end of the screw 8 is provided with a regular hexagonal slot 15. The regular hexagonal slot 15 is used to rotate the screw 8 with an Allen wrench. At this time, a probe needs to be set on the Allen wrench. The probe is inserted into the mounting slot 16 to disengage the limiting rod 9 from the retaining slot 11.

[0020] The limiting rod 9 is provided with a first through hole 13, and the first through hole 13 is an elongated hole. The inside of the regular hexagonal groove 15 is provided with a second through hole 14, and the second through hole 14 is located directly above the first through hole 13. The second through hole 14 is a round hole. The insertion rod passes through the second through hole 14 and the first through hole 13 and then fastens the V-shaped piece 10. The first through hole 13 is an elongated hole to prevent the insertion rod from restricting the movement of the limiting rod 9. The limiting rod 9 can be disengaged from the slot 11. In addition, it is easy to change the length of the insertion rod.

[0021] A protective sleeve 1 is fitted onto the connecting ear of the clamp 2. The protective sleeve 1 is provided to protect the connecting ear.

[0022] The protective sleeve 1 has an opening on its side wall and forms a limiting strip 4. The end of the limiting strip 4 has a protrusion. The connecting ear side wall of the clamp 2 has a limiting groove 12, and the protrusion fits into the groove at one end of the limiting groove 12. That is, through the structure of the protrusion and the groove, the protective sleeve 1 is fastened to the connecting ear.

[0023] A pin 5 is inserted into the protective sleeve 1, and a lead seal 3 is provided at the lower end of the pin 5. The protective sleeve 1 is fixed by the pin 5 and the lead seal 3. Further anti-counterfeiting mark or identification lead seal 3 is selected. During subsequent inspection and maintenance, check whether the lead seal 3 is damaged or replaced, so as to determine whether the clamp 2 at this place has been damaged.

[0024] The technical means disclosed in this utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A pipeline anti-theft clamp assembly, comprising a clamp (2), wherein a bolt (7) is inserted through a connecting lug at the end of the clamp (2), and a nut (6) is threaded onto the bolt (7), characterized in that: The clamp (2) has a threaded hole on its connecting ear, and a screw (8) is threaded into the threaded hole. The screw (8) has an installation groove (16) inside, and a V-shaped part (10) is fixedly connected inside the installation groove (16). A limit rod (9) is fixedly connected to the upper end of the V-shaped part (10). A slot (11) is provided inside the threaded hole, and one end of the limit rod (9) extends into the slot (11).

2. The anti-theft clamp assembly for pipelines according to claim 1, characterized in that: The upper end of the screw (8) is provided with a regular hexagonal groove (15).

3. The anti-theft clamp assembly for pipelines according to claim 2, characterized in that: The limiting rod (9) is provided with a first through hole (13), and the first through hole (13) is an elongated hole. The inside of the regular hexagonal groove (15) is provided with a second through hole (14), and the second through hole (14) is located directly above the first through hole (13).

4. The anti-theft clamp assembly for pipelines according to claim 1, characterized in that: A protective sleeve (1) is fitted onto the connecting ear of the clamp (2).

5. The anti-theft clamp assembly for pipelines according to claim 4, characterized in that: The protective sleeve (1) has an opening on its side wall and forms a limiting strip (4). The end of the limiting strip (4) has a protrusion. The connecting ear side wall of the clamp (2) has a limiting groove (12), and the protrusion fits into the groove at one end of the limiting groove (12).

6. The anti-theft clamp assembly for pipelines according to claim 4, characterized in that: A pin (5) is inserted into the protective sleeve (1), and a lead seal (3) is provided at the lower end of the pin (5).

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