Static conductive belt connecting piece

Abstract

The utility model discloses a static conductive belt connecting piece which comprises a base and a connecting shaft which are rotationally connected. The connecting shaft is provided with a first connecting part, and the first connecting part is used for being fixedly connected with the static conductive belt; the base is provided with a second connecting part, and the second connecting part is used for being fixedly connected with the mounting face of the static conductive belt connecting piece. According to the utility model, based on the design that the base is rotationally connected with the connecting shaft, the stress of the static conductive belt can be ensured to be effectively dispersed and buffered when the static conductive belt faces a complicated and changeable environment and is not uniform in stress, so that the damage caused by the non-uniform stress is avoided. Due to the fact that the situation that the static conductive belt is damaged due to shearing force is reduced, frequent maintenance and replacement of related parts are not needed, the overall operation and maintenance cost is effectively reduced, and meanwhile the continuity and efficiency of production operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a conductive strip connector. Background Technology

[0002] In the field of crude oil storage, the safe operation of floating roof tanks is of paramount importance. Among them, the static discharge strip connector is a key component that ensures effective static discharge, and its performance directly affects the safety of the entire storage system.

[0003] Currently, traditional conductive strip connectors mostly use fixed clip connections. In practical use, this connection method has significant drawbacks. The floating roof of a floating roof tank floats up and down due to changes in liquid level, and in windy weather, the floating roof and conductive strip are subjected to considerable wind force. The fixed clip connection is inflexible; when the floating roof floats up and down or is blown by strong winds, the shear force on the conductive strip changes significantly. This unstable stress state greatly affects the service life of the conductive strip, accelerating its damage. Taking the Alashankou oil transfer station as an example, its four floating roof tanks have a total of 28 telescopic grounding devices, and the conductive strips use fixed clip connections. Statistics show that the breakage rate of the conductive strips on the tank floating vessels is as high as 8 times per six months. Moreover, once the conductive strip is damaged, the repair work is cumbersome, requiring disassembly of the fixing clips, re-threading the conductive strip, and tightening it, which is not only time-consuming and labor-intensive but also very difficult to repair. Utility Model Content

[0004] This utility model provides a conductive strip connector to solve at least one technical defect in the prior art.

[0005] This utility model embodiment provides a conductive tape connector, including:

[0006] A base and a connecting shaft, wherein the connecting shaft is rotatably connected to the base;

[0007] The connecting shaft is provided with a first connecting part, which is used to be fixedly connected to the electrostatic conductive strip.

[0008] The base is provided with a second connecting part, which is used to fix and connect to the mounting surface of the electrostatic conductive strip connector.

[0009] Optionally, it also includes a static-dissipating jumper wire, which is fixedly connected to the first connection part and the second connection part.

[0010] Optionally, the cross-sectional area of ​​the electrostatic discharge jumper is 50 mm². 2 .

[0011] Optionally, the first connecting part is an extension rod, the extension rod is threaded, and the electrostatic conductive strip is fixedly connected to the extension rod through the thread.

[0012] Optionally, the extension rod is an L-shaped extension rod.

[0013] Optionally, the L-direction extension rod is made of zinc alloy.

[0014] Optionally, the connecting shaft is a ball joint shaft.

[0015] Optionally, the thread is a left-hand thread.

[0016] Optionally, the base includes a cavity with threads on its surface. The cavity is used to engage with a bolt to fix the base to the mounting surface, and the bolt serves as the second connecting part.

[0017] Optionally, the electrostatic conductive strip connector is used to connect the storage tank and the floating roof via the electrostatic conductive strip, and the mounting surface is the edge of the floating roof.

[0018] Compared with existing technologies, the advantages of this utility model are as follows: This utility model proposes a conductive strip connector, including a base and a connecting shaft, with the connecting shaft rotatably connected to the base. Based on the rotatable connection between the base and the connecting shaft, when the conductive strip faces complex and variable environments with uneven stress, the stress on the conductive strip can be effectively dispersed and buffered, avoiding damage caused by uneven stress. Since the likelihood of damage to the conductive strip due to shear force is reduced, frequent maintenance and replacement of related components are unnecessary, effectively reducing overall maintenance costs while improving the continuity and efficiency of production operations. Attached Figure Description

[0019] Figure 1 This is a structural block diagram of the conductive strip connector in the embodiment;

[0020] Figure 2 This is a schematic diagram of the conductive strip connector structure in the embodiment;

[0021] Figure 3 This is a schematic diagram of the conductive strip connector structure from another perspective in the embodiment. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0023] Figure 1 This is a structural block diagram of the conductive strip connector in the embodiment, for reference. Figure 1The conductive strip connector includes: a connecting shaft 101 and a base 102, with the connecting shaft 101 and the base 102 being rotatably connected.

[0024] In this design, the connecting shaft 101 is equipped with a first connecting part, which is used to fix the connection with the conductive strip; the base 102 is equipped with a second connecting part, which is used to fix the connection with the mounting surface of the conductive strip connector.

[0025] For example, in this solution, the object to which the conductive strip is connected, except for the other end connected to the conductive strip connector, is not limited. For example, it can be the storage tank 1. At the same time, the mounting surface of the conductive strip connector is not limited. For example, it can be a designated position on the floating roof 2.

[0026] For example, in this solution, the specific mechanical structure of the connecting shaft 101 can be set according to design requirements.

[0027] For example, the connecting shaft 101 can be designed as an integral threaded rod connecting shaft. The main body of the connecting shaft is a metal rod, with one end machined into a threaded rod as the first connecting part, used to connect with the conductive strip. The threaded rod can be adapted to the threaded hole at the end of the conductive strip and is fixed by tightening a nut.

[0028] Alternatively, the connecting shaft 101 can be designed as a flanged connecting shaft. The connecting shaft is a cylindrical metal shaft with a circular flange welded or integrally formed at one end as the first connection part. Multiple bolt holes are evenly distributed on the flange, and corresponding mounting holes are provided at the end of the conductive strip. Bolts are used to pass through both to fix the conductive strip to the connecting shaft. The rotating connection between the shaft body and the base uses bearings to ensure flexible rotation and reduce frictional resistance.

[0029] For example, in this solution, the specific mechanical structure of the base 102 can be set according to design requirements.

[0030] For example, the base 102 can be designed as a flat plate. In this design, the base is a flat metal plate with a smooth surface. The second connection consists of multiple bolt holes distributed on the plate, which secure the base to the mounting surface of the storage tank or floating roof using bolts.

[0031] Alternatively, the base 102 can be designed as an L-shaped support base. In this design, the base consists of two mutually perpendicular metal plates in an L-shape. The second connecting part on the horizontal plate has multiple mounting holes for fixing to the vertical mounting surface of the storage tank or floating roof.

[0032] For example, in this solution, the rotatable connection between the connecting shaft and the base can be achieved in the following way:

[0033] A mounting hole, slightly larger in diameter than the connecting shaft, is made at the corresponding position on the base. A high-strength bronze bushing is inserted into the mounting hole. The inner hole of the bushing is precision-machined and has a clearance fit with the connecting shaft, ensuring that the connecting shaft can rotate freely within the bushing. The outer diameter of the bushing has an interference fit with the mounting hole on the base, and the bushing is securely installed on the base by heat fitting or cold fitting.

[0034] Alternatively, a rolling bearing, such as a deep groove ball bearing, can be installed at the mounting hole in the base. First, the outer ring of the bearing is installed with an interference fit to the mounting hole in the base. This can be achieved by heating the base or cooling the outer ring of the bearing to ensure a tight fit. The shaft body passes through the inner ring of the bearing, with an transition fit between the inner ring and the shaft body. Then, using a shaft retaining ring or lock nut, the inner ring of the bearing is secured at the end of the connecting shaft to prevent axial movement.

[0035] In this design, the purpose of rotatably connecting the connecting shaft 101 to the base 102 is:

[0036] In actual working conditions, storage tanks and floating roofs often operate under complex conditions with various dynamic factors. During windy weather, the conductive strips can experience frequent movement due to high-frequency wind forces.

[0037] The connecting shaft 101 and the base 102 are rotatably connected, which fundamentally changes the stress pattern of the conductive strip. Since the connecting shaft 101 can rotate relative to the base 102 and move automatically within a certain range, the lateral shear force generated by the high-frequency movement of the conductive strip during windy weather, as well as the forces caused by various factors during daily use, can be effectively dispersed and buffered through the relative rotation of the connecting shaft 101 and the base 102, avoiding stress concentration that could damage the conductive strip.

[0038] This embodiment proposes a conductive strip connector, including a base and a connecting shaft, with the connecting shaft rotatably connected to the base. Based on this rotatable connection, when the conductive strip faces uneven stress in complex and changing environments, the stress on the conductive strip can be effectively dispersed and buffered, avoiding damage caused by uneven stress. Since the likelihood of damage to the conductive strip due to shear force is reduced, frequent maintenance and replacement of related components are unnecessary, effectively lowering overall maintenance costs while improving the continuity and efficiency of production operations.

[0039] Based on any of the aforementioned solutions, in one possible implementation, the electrostatic discharge strip connector further includes an electrostatic discharge jumper wire, which is fixedly connected to the first connecting part and the second connecting part.

[0040] For example, in this solution, the purpose of configuring the conductive jumper wire is:

[0041] To meet the overcurrent requirements of high current, ensure that static electricity can be quickly and stably discharged, efficiently conduct the generated static electricity to the grounding system, continuously provide reliable electrostatic protection, and greatly reduce the risk of accidents caused by static electricity.

[0042] For example, in this solution, the first end of the static electricity conductive jumper is fixedly connected to the first connecting part, and the second end of the static electricity conductive jumper is fixedly connected to the second connecting part.

[0043] For example, in this solution, the specifications of the static electricity bonding wire are determined according to actual needs. For instance, the static electricity bonding wire can be selected based on the specifications corresponding to the resistance of the static electricity strip after installation.

[0044] For example, in the application scenario of storage tanks, the cross-sectional area of ​​the static electricity conductive jumper is 50mm². 2 In this solution, 50mm diameter wires are added to both ends of the conductive strip connector. 2 Conductive jumper cable. The reason for choosing 50mm is... 2 The specification is because this cross-sectional area provides low resistance and strong high current conduction capability.

[0045] Precise measurements using professional measuring instruments showed that, after adding jumper wires, the resistance of the conductive strip was controlled within an extremely low range of 0 to 0.002 Ω. This value is significantly lower than the standard requirement of 0.03 Ω and far below the upper limit, fully demonstrating that the conductive strip fully meets the stringent standard requirements.

[0046] Based on any of the aforementioned solutions, in one possible implementation, the first connecting part is an extension rod, the extension rod is threaded, and the electrostatic conductive strip is fixedly connected to the extension rod through the thread.

[0047] For example, in this solution, a nut is used in conjunction with an extension rod to fix the static-dissipating strip. The end of the static-dissipating strip should be pre-machined with a through hole that matches the thread of the extension rod to ensure that it can pass smoothly through the extension rod.

[0048] During installation, align the through-hole of the conductive strip with the extension rod of the connecting shaft, allowing the extension rod to pass through the conductive strip. On the other end of the extension rod, place a flat washer and a spring washer in sequence. The flat washer increases the contact area between the nut and the conductive strip, preventing damage to the conductive strip when the nut is tightened; the spring washer provides anti-loosening protection, ensuring the nut does not loosen during equipment operation.

[0049] For example, in this solution, the direction of the thread can be designed as needed; for example, the thread can be a left-hand thread.

[0050] In this design, the direction of the left-hand thread is opposite to the loosening tendency caused by common vibration directions. When the equipment vibrates, the force on the left-hand thread will tighten it further, effectively preventing the threaded connection from loosening under vibration, improving the stability and reliability of the conductive tape connector, and ensuring the stable operation of the electrostatic conduction system.

[0051] Based on the aforementioned scheme of using an extension rod in the first connecting part, in one possible implementation, the extension rod is an L-shaped extension rod.

[0052] For example, in this solution, the extension rod is an L-shaped extension rod. During installation, the L-shaped extension rod's structural design makes operation more convenient. Its bent portion can serve as a leverage point, making it easier for installers to grip and adjust the position of the conductive strip, reducing installation difficulty and improving installation efficiency.

[0053] Based on the scheme of using an L-shaped extension rod, in one possible implementation, the L-shaped extension rod is made of zinc alloy.

[0054] Based on any of the aforementioned solutions, in one possible implementation, the connecting shaft is a ball joint shaft.

[0055] For example, in this solution, a ball joint is machined on the base to match the ball head portion of the ball joint shaft, and the ball head portion of the ball joint shaft is tightly embedded in the ball joint to form a rotating pair.

[0056] The ball joint and the ball socket are fully engaged, allowing the ball joint to rotate freely within a 360-degree range. This meets the requirements of the conductive strip for multi-angle rotation under complex working conditions, effectively disperses the force on the conductive strip, and improves the stability of the conductive system.

[0057] Based on any of the aforementioned solutions, in one possible implementation, the base includes a cavity with threads on its surface. The cavity is used to engage with bolts to fix the base to the mounting surface, and the bolts serve as a second connection.

[0058] For example, in this solution, the cavity is designed as a cylinder, which is easy to manufacture and can distribute the force evenly. Its inner diameter is adapted to the diameter of the mating bolt, and is generally slightly larger than the bolt diameter to ensure that the bolt can pass through smoothly and form a clearance fit. For example, if an M10 bolt is used, the inner diameter of the cavity may be designed to be 10.5mm to 11mm.

[0059] The threads on the cavity surface are standard metric threads, with the thread depth and pitch determined according to the bolt specifications and connection strength requirements. For common M8 to M12 bolts, the thread depth is generally 6mm to 10mm, and the pitch is 1.25mm to 1.75mm.

[0060] For example, in this solution, when fixing the base on the mounting surface: the base with the cavity is placed on the mounting surface and positioned according to a predetermined installation position. Then, bolts are passed through the cavity, and flat washers, spring washers, and nuts are sequentially fitted onto the other end of the bolts to fix the base.

[0061] Based on any of the aforementioned solutions, in one possible implementation, the electrostatic discharge strap connector is used to connect the storage tank and the floating roof via the electrostatic discharge strap, with the mounting surface being the edge of the floating roof.

[0062] Figure 2 This is a schematic diagram of the conductive strip connector structure in the embodiment. Figure 3 This is a schematic diagram of the conductive strip connector structure from another perspective in the embodiment, for reference. Figure 2 and Figure 3 Based on any of the aforementioned solutions, in one possible implementation, the conductive strip connector includes:

[0063] The ball head shaft 1011 and the base 102 are rotatably connected. The ball head shaft 1011 is equipped with an extension rod 1012, which is threaded. The electrostatic conductive strip is fixedly connected to the extension rod 1012 through the thread. The extension rod 1012 serves as the first connecting part.

[0064] The base 102 has an internal cavity with threads on its surface. The cavity is used to engage with bolts to fix the base to the mounting surface, and the bolts serve as a second connection.

[0065] It also includes a static discharge jumper wire, which is fixedly connected to the first connection part and the second connection part.

[0066] In this solution, a connector is designed and manufactured to address the problem that the conductive strip of the floating roof of the storage tank is prone to breakage during windy weather. This connector can reduce or eliminate the lateral shear force caused by the high-frequency movement of the conductive strip due to windy weather, reduce the number of times the conductive strip breaks, and extend the service life of the conductive strip.

[0067] In this design, a conductive strip connector is used to connect the conductive strip to the floating vessel, and the conductive strip is fixed to the top of the connector. After installation, the shear stress between the conductive strip and the floating vessel is eliminated by rotating the ball joint.

[0068] In this solution, to address the issue of high resistance in the straight rod ball joint bearing, 50mm thick antistatic tape was added to both ends of the conductive tape connector. 2 The static discharge jumper wire has ensured the ability to handle large currents.

[0069] In this solution, the conductive strip connector can be widely used at the connection points of the conductive telescopic strips on external floating roof tanks. It can significantly reduce the damage rate of the conductive telescopic strips, saving costs and improving work efficiency. The manufacturing cost of the conductive strip connector is approximately 150 yuan, the cost of modifying one tank is approximately 1,000 yuan, and the total cost for four tanks is 4,000 yuan; while the cost of replacing one conductive strip is approximately 3,000 yuan. Using the conductive strip connector can save approximately 20,000 yuan per year, solving the practical problem on site at a relatively low cost.

[0070] Using this conductive strip connector can reduce the breakage rate of the conductive strip, reduce the risk of the conductive strip breaking due to strong winds, ensure that the low-frequency lightning current and static electricity generated during operation on the floating roof are released in a timely manner, and avoid the phenomenon of arcing due to lightning current and static electricity passing through the floating roof.

[0071] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A conductive strip connector, characterized in that, include: A base and a connecting shaft, wherein the connecting shaft is rotatably connected to the base; The connecting shaft is provided with a first connecting part, which is used to be fixedly connected to the electrostatic conductive strip. The base is provided with a second connecting part, which is used to fix and connect to the mounting surface of the electrostatic conductive strip connector.

2. The conductive strip connector as described in claim 1, characterized in that, It also includes a static-dissipating jumper wire, which is fixedly connected to the first connection part and the second connection part.

3. The conductive strip connector as described in claim 2, characterized in that, The cross-sectional area of ​​the conductive jumper wire is 50 mm². 2 .

4. The conductive tape connector as described in claim 1, characterized in that, The first connecting part is an extension rod, which is threaded, and the electrostatic conductive strip is fixedly connected to the extension rod through the thread.

5. The conductive strip connector as described in claim 4, characterized in that, The extension rod is an L-shaped extension rod.

6. The conductive strip connector as described in claim 5, characterized in that, The L-shaped extension rod is made of zinc alloy.

7. The electrostatic conductive tape connector as described in claim 1, characterized in that, The connecting shaft is a ball-joint shaft.

8. The conductive strip connector as described in claim 4, characterized in that, The thread is a left-hand thread.

9. The electrostatic conductive tape connector as described in claim 1, characterized in that, The base includes a cavity with threads on its surface. The cavity is used to engage with a bolt to fix the base to the mounting surface, and the bolt serves as the second connecting part.

10. The electrostatic conductive tape connector as described in any one of claims 1 to 9, characterized in that, The conductive strip connector is used to connect the storage tank and the floating roof via the conductive strip, and the mounting surface is the edge of the floating roof.

Images