Short-circuit grounding wire clamp for obstacle-crossing centrally-mounted circuit breaker cabinet

Abstract

The invention relates to the technical field of grounding wire clamps, and discloses a short-circuit grounding wire clamp for an obstacle-crossing middle-mounted circuit breaker cabinet, and the short-circuit grounding wire clamp comprises a wire clamp main body, an operating rod, a duplex universal joint, an orientation rod, and a rotating rod. The wire clamp main body is provided with an adjusting rod capable of rotating to adjust the opening size of the wire clamp; the operating rod is connected with the adjusting rod through the duplex universal joint, so that the operating rod can drive the adjusting rod to rotate when rotating, and the operating rod can rotate relative to the adjusting rod; the directional rod is fixedly connected with the wire clamp main body; one end of the rotating rod is connected with the operating rod, and the other end is rotatably connected with the orientation rod; a tightness adjusting piece is arranged on the rotating rod; the tightness adjusting piece can limit the rotation of the rotating rod relative to the directional rod when tightened. The short-circuit grounding wire clamp provided by the scheme can be adapted to middle circuit breaker cabinets of different models, the grounding wire clamp can be rapidly hung, the operation difficulty is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of grounding clamp technology, and in particular to a short-circuit grounding clamp for a barrier-crossing circuit breaker cabinet. Background Technology

[0002] Power expansion projects are a series of power infrastructure and service projects undertaken by the power industry to meet the new, increased, or changed power needs of users. In power expansion projects, 10kV high-voltage incoming line cabinets often use withdrawable, centrally located circuit breaker cabinets. To prevent users from accidentally closing the grounding switch while the circuit is energized, these incoming line cabinets are usually not suitable for installation with grounding switches. Therefore, when the incoming line cabinet needs to be put into maintenance mode, a 10kV grounding wire must be installed inside the cabinet to ensure operational safety.

[0003] Because different manufacturers produce 10kV withdrawable medium-voltage circuit breaker cabinets of various models, their design is mostly based on the built-in grounding switch and operating mechanism, without reserving enough internal structural space for hanging 10kV grounding wires. At the same time, the arrangement of components such as beams and insulators inside the cabinet is messy, which will obstruct the existing 10kV grounding wire operating rod with a length of at least 0.7m.

[0004] In other words, the existing grounding wire operating rod has problems such as difficulty in hanging the grounding wire, difficulty in tightening the clamp, and low work efficiency when performing grounding wire installation work on the central circuit breaker cabinet. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a short-circuit grounding clamp for a barrier-crossing circuit breaker cabinet, which can solve some or all of the above problems.

[0006] To achieve the above technical objectives, this application provides a short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet, comprising: a clamp body, an operating rod, a double universal joint, a directional rod, and a rotating rod;

[0007] The clamp body has an adjusting rod that can rotate to adjust the size of the clamp opening;

[0008] The operating lever is connected to the adjusting rod via the double universal joint, so that the operating lever can drive the adjusting rod to rotate when it rotates, and the operating lever can rotate relative to the adjusting rod.

[0009] The directional rod is fixedly connected to the wire clamp body;

[0010] One end of the rotating rod is connected to the operating rod, and the other end is rotatably connected to the directional rod;

[0011] The rotating rod is equipped with a tension adjustment component;

[0012] When the tension adjustment component is tightened, it can restrict the rotation of the rotating rod relative to the directional rod.

[0013] Furthermore, the directional rod is provided with a first toothed disc surface;

[0014] The rotating rod is provided with a second toothed disc surface;

[0015] When the tension adjustment component is tightened, the first gear plate surface meshes with the second gear plate surface.

[0016] Furthermore, a spring sleeve is fitted around the outer periphery of the double universal joint;

[0017] The two ends of the spring sleeve are respectively connected to the operating rod and the adjusting rod.

[0018] Furthermore, the adjusting rod is a telescopic rod;

[0019] The directional rod is a telescopic rod.

[0020] Furthermore, the directional rod includes an inner rod and an outer rod;

[0021] The inner rod is fixedly connected to the wire clamp body;

[0022] The outer rod can be slidably connected to the inner rod;

[0023] The rotating rod is rotatably connected to the outer rod.

[0024] Furthermore, the directional rod includes multiple bolts.

[0025] The inner rod is provided with multiple positioning holes;

[0026] The outer rod is provided with multiple second positioning holes;

[0027] The bolt passes through the second positioning hole and the positioning hole, and is threadedly connected to both the inner rod and the outer rod.

[0028] Furthermore, the inner rod is a tapered rod;

[0029] The outer rod is provided with a dovetail groove, and the inner rod can be slidably disposed in the dovetail groove.

[0030] Furthermore, a limit block is provided at the bottom of the inner rod;

[0031] The limiting block is used to restrict the outer rod from sliding through.

[0032] Furthermore, a sleeve is provided at one end of the rotating rod;

[0033] The operating lever is rotatably mounted on the sleeve.

[0034] Furthermore, the clamp body includes a pressure block;

[0035] The pressure block is slidably disposed within the opening of the wire clamp;

[0036] The top end of the adjusting rod extends into the opening of the clamp;

[0037] The pressure block is rotatably connected to the top of the adjusting rod.

[0038] As can be seen from the above technical solutions, this application provides a short-circuit grounding clamp for a barrier-crossing center-mounted circuit breaker cabinet, comprising: a clamp body, an operating rod, a double universal joint, a directional rod, and a rotating rod; the clamp body has an adjusting rod that can rotate to adjust the size of the clamp opening; the operating rod is connected to the adjusting rod through the double universal joint, so that the operating rod can drive the adjusting rod to rotate when rotating, and the operating rod can rotate relative to the adjusting rod; the directional rod is fixedly connected to the clamp body; one end of the rotating rod is connected to the operating rod, and the other end is rotatably connected to the directional rod; the rotating rod is provided with a tension adjustment component; when the tension adjustment component is tightened, it can restrict the rotation of the rotating rod relative to the directional rod.

[0039] In this solution, when the tension adjustment component is loosened, the rotating rod can rotate relative to the directional rod, thereby adjusting the relative position of the operating rod and the adjusting rod to adapt to the component structures in different center-mounted circuit breaker cabinets. After adjustment, the tension adjustment component is tightened. Then, rotating the operating rod drives the adjusting rod to rotate, adjusting the size of the clamp opening until the clamp body is securely attached. The short-circuit grounding clamp provided by this solution can be adapted to different models of center-mounted circuit breaker cabinets, enabling quick installation of grounding clamps, reducing operational difficulty and improving operational efficiency. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A perspective view of a short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet provided in an embodiment of this application;

[0042] Figure 2 A side view of a short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet provided in an embodiment of this application;

[0043] Figure 3A cross-sectional view of the inner and outer rods of a short-circuit grounding clamp for a barrier-crossing circuit breaker cabinet provided in an embodiment of this application;

[0044] In the picture:

[0045] 10. Wire clamp body; 11. Wire clamp opening; 12. Adjusting rod; 13. Pressure block;

[0046] 20. Control lever;

[0047] 30. Double universal joint; 31. Spring sleeve;

[0048] 40. Directional rod; 41. First gear plate surface; 42. Inner rod; 43. Outer rod; 44. Bolt;

[0049] 50. Rotating rod; 51. Tension adjusting component; 52. Second gear plate surface; 53. Sleeve. Detailed Implementation

[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0051] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0053] Please see Figure 1 and Figure 2The present application provides a short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet, comprising: clamp body 10, operating lever 20, double universal joint 30, directional lever 40, and rotating lever 50.

[0054] The clamp body 10 has an adjusting rod 12 that can rotate to adjust the size of the clamp opening 11. Specifically, the clamp body 10 has a C-shaped clamp opening 11. In this embodiment, the top and bottom of the clamp opening 11 can be flattened, and an arc groove is provided at the top for a more secure connection of the wire. The adjusting rod 12 is threadedly connected to the clamp body 10, and when the adjusting rod 12 is rotated, it can move along its own axis within the clamp opening 11. A pressure block 13 is rotatably connected to the top of the adjusting rod 12; the pressure block 13 is slidably connected to a guide strip within the clamp opening 11. During the rotation of the adjusting rod 12, the pressure block 13 can slide along the clamp opening 11 to adjust the size of the clamp opening 11.

[0055] The operating lever 20 is connected to the adjusting lever 12 via a double universal joint 30, allowing the operating lever 20 to rotate and drive the adjusting lever 12 to rotate, and the operating lever 20 to rotate relative to the adjusting lever 12. The double universal joint 30 is a conventional transmission connection structure, comprising a driving fork and a driven fork. The driving fork and driven fork are respectively connected to the operating lever 20 and the adjusting lever 12. When the operating lever 20 rotates, it can drive the adjusting lever 12 to rotate via the double universal joint 30, and the operating lever 20 can bend flexibly relative to the adjusting lever 12.

[0056] The directional rod 40 is fixedly connected to the main body 10 of the clamp; one end of the rotating rod 50 is connected to the operating rod 20, and the other end is rotatably connected to the directional rod 40; a tension adjustment component 51 is provided on the rotating rod 50; when the tension adjustment component 51 is tightened, it can restrict the rotation of the rotating rod 50 relative to the directional rod 40.

[0057] In this embodiment, when it is necessary to rotate and adjust the angle between the operating lever 20 and the adjusting lever 12, the operator loosens the tension adjustment component 51. After adjustment, tightening the tension adjustment component 51 fixes the relative position of the rotating lever 50 and the directional lever 40, thereby fixing the position of the operating lever 20 by rotating the lever 50. This allows the operator to lift the entire grounding clamp by operating the lever 20 and control the clamp opening 11 by rotating the operating lever 20.

[0058] In this embodiment, the tension adjustment component 51 can be a wing bolt to facilitate manual operation by the operator.

[0059] The short-circuit grounding clamp provided in this embodiment can efficiently complete the installation of grounding clamps in the center-mounted circuit breaker cabinet, and it can be adapted to different models of center-mounted circuit breaker cabinets, making it widely applicable.

[0060] In one embodiment, a sleeve 53 is provided at one end of the rotating rod 50; the operating rod 20 is rotatably disposed on the sleeve 53.

[0061] Specifically, a bearing can be installed inside the sleeve 53. The operating rod 20 is sleeved inside the bearing. The sleeve 53 provides support for the rotation of the operating rod 20, and the operator can hold the rotating rod 50 with one hand and rotate the operating rod 20 with the other hand, thus facilitating the operation of rotating the operating rod 20.

[0062] In one embodiment, the directional rod 40 is provided with a first toothed disc surface 41; the rotating rod 50 is provided with a second toothed disc surface 52; when the tension adjusting member 51 is tightened, the first toothed disc surface 41 and the second toothed disc surface 52 mesh.

[0063] Specifically, the first toothed disc surface 41 and the second toothed disc surface 52 can improve the stability of the rotating rod 50 and the directional rod 40 when the tension adjustment component 51 is tightened, ensuring that the rotating rod 50 will not rotate relative to the directional rod 40 during the hanging process.

[0064] In one embodiment, a spring sleeve 31 is fitted around the outer periphery of the double universal joint 30; the two ends of the spring sleeve 31 are respectively connected to the operating rod 20 and the adjusting rod 12.

[0065] The spring sleeve 31 provides physical protection for the double universal joint 30, preventing components such as crossbeams and insulators inside the cabinet from colliding with or scratching the universal joint's cross shaft, fork, and other core transmission components during operation, thus extending the universal joint's service life. Furthermore, the elastic properties of the spring sleeve 31 buffer vibrations transmitted by the operating lever during operation, reducing instantaneous impacts during torque transmission and making the rotation of the adjusting rod 12 smoother, preventing loosening of the clamps due to vibration. In addition, the spring sleeve 31 enhances the overall connection between the operating rod 20 and the adjusting rod 12, reducing radial wobble at the universal joint and ensuring transmission stability.

[0066] In one embodiment, the adjusting rod 12 is a telescopic rod; the directional rod 40 is a telescopic rod.

[0067] The telescopic structure of both the adjusting rod 12 and the directional rod 40 further enhances the applicability and scenario adaptability of the grounding clamp. This addresses the issue of varying internal depths and obstacle locations in 10kV withdrawable center-mounted circuit breaker cabinets from different manufacturers and models. Simultaneously, the telescopic nature of the directional rod 40, in conjunction with the length of the adjusting rod 12, ensures that the operating rod 20 is oriented correctly after the tension adjustment component 51 is tightened.

[0068] In one embodiment, the directional rod 40 includes an inner rod 42 and an outer rod 43; the inner rod 42 is fixedly connected to the clamp body 10; the outer rod 43 is slidably connected to the inner rod 42; and the rotating rod 50 is rotatably connected to the outer rod 43.

[0069] Specifically, the directional rod 40 includes multiple bolts 44, and the inner rod 42 is provided with multiple positioning holes; the outer rod 43 is provided with multiple second positioning holes; the bolts 44 pass through the second positioning holes and the positioning holes, and are threadedly connected to both the inner rod 42 and the outer rod 43.

[0070] The design of multiple bolts 44 in conjunction with the threaded connection between the inner rod positioning hole and the outer rod second positioning hole can fix the guide rod 40 after it is extended or retracted, ensuring the firmness of the length of the guide rod 40 after extension or retraction; the setting of multiple positioning holes and the second positioning hole can realize multiple length adjustment.

[0071] In one embodiment, the inner rod 42 is a tapered rod; the outer rod 43 is provided with a dovetail groove, and the inner rod 42 can be slidably disposed in the dovetail groove, so as to prevent the outer rod 43 from separating from the inner rod 42 during the process of adjusting the length of the guide rod 40 after the bolt 44 is removed.

[0072] Furthermore, a limiting block is provided at the bottom of the inner rod 42; the limiting block is used to restrict the outer rod 43 from sliding through. The limiting block can prevent the outer rod 43 from separating from the bottom of the inner rod 42 during the extension and retraction process.

[0073] As one implementation method, please refer to Figure 3 The bottom of the inner rod 42 can protrude outward to form a limiting block. Inside the outer rod 43, a second limiting block is provided at the top of the dovetail groove. When the outer rod 43 slides to the bottom of the inner rod 42, the second limiting block abuts against the limiting block, thereby preventing the outer rod 43 from separating from the inner rod 42.

[0074] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although this application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet, characterized in that, include: The cable clamp body (10), operating lever (20), double universal joint (30), directional rod (40) and rotating rod (50); The clamp body (10) has an adjustment rod (12) that can be rotated to adjust the size of the clamp opening (11). The operating lever (20) is connected to the adjusting rod (12) through the double universal joint (30), so that the operating lever (20) can drive the adjusting rod (12) to rotate when rotating, and the operating lever (20) can rotate relative to the adjusting rod (12). The directional rod (40) is fixedly connected to the clamp body (10); One end of the rotating rod (50) is connected to the operating rod (20), and the other end is rotatably connected to the directional rod (40). The rotating rod (50) is provided with a tension adjustment component (51); When the tension adjustment member (51) is tightened, it can restrict the rotation of the rotating rod (50) relative to the directional rod (40).

2. The short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet according to claim 1, characterized in that, The directional rod (40) is provided with a first toothed disc surface (41). The rotating rod (50) is provided with a second toothed disc surface (52); When the tension adjustment member (51) is tightened, the first toothed disc surface (41) meshes with the second toothed disc surface (52).

3. The short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet according to claim 1, characterized in that, The outer periphery of the double universal joint (30) is fitted with a spring sleeve (31). The two ends of the spring sleeve (31) are respectively connected to the operating rod (20) and the adjusting rod (12).

4. The short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet according to claim 1, characterized in that, The adjusting rod (12) is a telescopic rod; The directional rod (40) is a telescopic rod.

5. The short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet according to claim 4, characterized in that, The directional rod (40) includes an inner rod (42) and an outer rod (43); The inner rod (42) is fixedly connected to the clamp body (10); The outer rod (43) can be slidably connected to the inner rod (42); The rotating rod (50) is rotatably connected to the outer rod (43).

6. The short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet according to claim 5, characterized in that, The directional rod (40) includes multiple bolts (44). The inner rod (42) is provided with multiple positioning holes; The outer rod (43) is provided with a plurality of second positioning holes; The bolt (44) passes through the second positioning hole and the positioning hole, and is threadedly connected to both the inner rod (42) and the outer rod (43).

7. The short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet according to claim 5, characterized in that, The inner rod (42) is a tapered rod; The outer rod (43) is provided with a dovetail groove, and the inner rod (42) can be slidably disposed in the dovetail groove.

8. The short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet according to claim 5, characterized in that, A limit block is provided at the bottom of the inner rod (42); The limiting block is used to restrict the outer rod (43) from sliding through.

9. The short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet according to claim 1, characterized in that, A sleeve (53) is provided at one end of the rotating rod (50); The operating lever (20) is rotatably mounted on the sleeve (53).

10. The short-circuit grounding clamp for a barrier-crossing centrally located circuit breaker cabinet according to claim 1, characterized in that, The clamp body (10) includes a pressure block (13); The pressure block (13) is slidably disposed within the wire clamp opening (11); The top end of the adjusting rod (12) extends into the opening (11) of the clamp; The pressure block (13) is rotatably connected to the top of the adjusting rod (12).

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