Novel low-voltage straight-face busbar type card-row type drainage clamp

Abstract

This invention relates to a novel low-voltage straight busbar type clamp-type drain clamp, comprising: a quick-connect connector, a conductive tube, a voltage-conducting head, clamping teeth, a horizontal clamping plate, and a vertical clamping plate. The quick-connect connector is electrically connected to the conductive tube; the end of the conductive tube is threadedly connected to the voltage-conducting head, and the conductive tube and the voltage-conducting head are electrically connected; the clamping teeth are fixed to the end of the voltage-conducting head; the horizontal clamping plate is provided with a horizontal clamping element; the horizontal clamping element can move perpendicularly relative to the axis of the conductive tube; the end of the horizontal clamping element is provided with a No. I baffle parallel to the clamping teeth; the vertical clamping plate is provided with a vertical clamping element; the vertical clamping element can move parallel to the axis of the conductive tube; the end of the vertical clamping element is provided with a No. II baffle parallel to the clamping teeth; this drain clamp can adapt well to small-pitch busbars, ensuring simple and easy power extraction operation.

Description

Technical Field

[0001] This invention relates to the field of live-line working technology, and in particular to a novel low-voltage straight-face busbar type clamp-type drain clamp. Background Technology

[0002] Live-line work on 0.4kV lines has become a routine task, with temporary power extraction being an essential part of the work. For safety during this operation, workers need a safe and reliable low-voltage current-drawing clamp. This clamp must be able to break through the insulation layer of the copper busbar to extract power and then guide it to the external cable.

[0003] Faced with the special busbar environment, many power-getting tools are helpless, or can only use other complicated methods. Common power-getting methods on the market are: 1) using existing holes or drilling holes with tools, installing bolts, and connecting external cables; 2) finding other locations with larger spacing on the busbar and using bus clamps to connect external cables; 3) using small clamps to connect external cables.

[0004] The current common power supply methods on the market have the following drawbacks: 1) When using bolt connection, there must be holes on the busbar. If the busbar is energized, it is even more inconvenient to install; 2) For low-voltage switchgear with small busbar spacing, it is very difficult, or even impossible, to find a position with a larger spacing on the busbar line; 3) Small-sized clamps generally have a low rated current, which does not meet the usage requirements. Summary of the Invention

[0005] This application provides a novel low-pressure straight busbar type clamp-type drainage clamp, which solves or partially solves the technical problem that existing low-pressure drainage clamps are difficult or impossible to operate when facing special busbar environments due to the small spacing.

[0006] The novel low-voltage straight busbar type clamp-type drain clamp provided in this application includes: a quick-connect connector, a conductive tube, a voltage conductive head, clamping teeth, a horizontal clamp, and a vertical clamp. The quick-connect connector is electrically connected to the conductive tube; The end of the conductive tube is threadedly connected to the voltage-conducting head, and the conductive tube is electrically connected to the voltage-conducting head. The clamping teeth are fixed to the end of the conductive head, and the clamping teeth are perpendicular to the axis of the conductive tube. The transverse card holder is provided with a transverse card; the transverse card can move perpendicularly relative to the axis of the conductive tube; the end of the transverse card is provided with a No. I baffle parallel to the clamping tooth plate; The longitudinal clamping block is provided with a longitudinal clamping member; the longitudinal clamping member can move parallel to the axis of the conductive tube; the end of the longitudinal clamping member is provided with a No. II baffle parallel to the clamping tooth plate; Both the lateral and longitudinal clamps can pass through the gaps in the busbar; the clamping space between the clamping teeth and the No. I and No. II baffles is used to accommodate the busbar; during power extraction, the lateral clamps are positioned directly opposite the gaps in the busbar, and the clamping teeth are positioned higher than the busbar; the outer side of the longitudinal clamps abuts against the busbar and moves longitudinally backward, allowing the upper part of the busbar to enter the clamping space; then, the power extraction clamps move downward as a whole, and the busbar contacts the lateral clamps. As the power-feeding clamp continues to move downwards, and the busbar is positioned above the upper edge of the No. II baffle, the longitudinal clamp moves forward longitudinally, at which point the busbar is located inside the longitudinal clamp. Then, the power-feeding clamp moves upwards, and the busbar contacts the inner wall of the longitudinal clamp. At this point, the position of the clamping teeth is at the same height as the busbar. Finally, the conductive tube rotates, causing the conductive voltage head to move forward, thereby clamping and fixing the busbar between the clamping teeth and the No. I baffle, after which power can be drawn.

[0007] Preferably, it also includes an insulating shell that wraps around the conductive tube and the voltage-conducting head; the end of the insulating shell near the voltage-conducting head is a clamping end; the transverse clamp is slidably disposed on the clamping end of the insulating shell; and the longitudinal clamp is slidably disposed on the clamping end of the insulating shell.

[0008] Preferably, the transverse card holder is further provided with a transverse sliding frame and a transverse spring. The transverse sliding frame is fixed to the clamping end of the insulating shell; the conductive voltage head is slidably disposed in the through hole of the transverse sliding frame; the two opposite sides of the transverse sliding frame are provided with transverse sliding grooves perpendicular to the axis of the conductive tube; the transverse clamp is slidably disposed in the transverse sliding groove of the transverse sliding frame; one end of the transverse spring is connected to the transverse sliding frame, and the other end is connected to the transverse clamp. When the transverse spring is in its initial state, the transverse clip is attached to the transverse sliding frame.

[0009] Preferably, the longitudinal card slot is also provided with a longitudinal spring. The clamping end of the insulating shell is provided with a longitudinal groove parallel to the axis of the conductive tube; the longitudinal clamp is slidably disposed in the longitudinal groove of the clamping end of the insulating shell; one end of the longitudinal spring is connected to the clamping end of the insulating shell, and the other end is connected to the longitudinal clamp. When the longitudinal spring is in its initial state, the No. II baffle of the longitudinal clamp and the No. I baffle of the transverse clamp are located on the same plane. When power is being drawn, the No. II baffle of the longitudinal clamp abuts against the upper part of the busbar. Pushing the power-drawing clamp forward will cause the No. II baffle of the longitudinal clamp to slide backward, and the busbar will move closer to the clamping teeth.

[0010] Preferably, the device also includes a conductive adapter disposed within the insulating housing; the quick-connect connector is fixed to the lower part of the conductive adapter and electrically connected via strip-shaped contacts; the upper part of the conductive adapter is provided with a through hole, and the conductive tube is rotatably disposed in the through hole of the conductive adapter, and the conductive tube is electrically connected to the conductive adapter via strip-shaped contacts. The conductive tube transmits electrical energy to the quick-connect connector through the conductive adapter, and the quick-connect connector then transmits the electrical energy to the external cable.

[0011] Preferably, the device further includes a conductive end sleeve fixed inside the insulating shell; the conductive end sleeve is rotatably sleeved on the conductive tube and the conductive voltage head, the conductive tube is electrically connected to the conductive end sleeve through a strip-shaped contact finger; the conductive voltage head is electrically connected to the conductive end sleeve through a strip-shaped contact finger.

[0012] Preferably, a limiting ring is provided inside the conductive end sleeve, and a limiting groove is formed in the conductive tube to cooperate with the limiting ring.

[0013] Preferably, the other end of the conductive tube is provided with a groove, and the conductive tube is rotated by an insulated wrench that cooperates with the groove; a through hole is provided at the axial position of the conductive tube.

[0014] Preferably, the quick-connector is a standard self-locking quick-connector, which is fixed to the lower part of the conductive adapter by a threaded connection.

[0015] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: This application discloses a novel low-voltage straight-face busbar type clamp-type drain clamp, which comprises a quick-connect connector, a conductive tube, a voltage-conducting head, clamping teeth, a horizontal clamp, and a vertical clamp. The conductive tube serves as the transmission component; rotating the conductive tube with a tool drives the voltage-conducting head and clamping teeth via a threaded connection to clamp the busbar. This structure offers higher strength and durability than traditional transmission rods, and the threaded transmission is more stable. The end of the horizontal clamp has a No. 1 baffle parallel to the clamping teeth; the end of the vertical clamp has a No. 2 baffle parallel to the clamping teeth. The movement of the horizontal and vertical clamps within the busbar spacing allows the busbar to easily and smoothly enter the clamping space between the clamping teeth and the No. 1 and No. 2 baffles. Then, the rotation of the conductive tube moves the voltage-conducting head forward, clamping and fixing the busbar between the clamping teeth and the No. 1 baffle, enabling power extraction. Therefore, this low-voltage straight-face busbar type clamp-type drain clamp can effectively adapt to small-pitch busbars, ensuring simple and easy power extraction operations. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of the novel low-pressure straight-face busbar type card-type drainage clamp provided in the embodiments of this application; Figure 2 for Figure 1 Schematic diagram of the AA-direction section; Figure 3 A schematic diagram of the assembly of the novel low-pressure straight busbar type clamp-type drain clamp and busbar provided in the embodiments of this application; Figure 4 for Figure 1 A partial schematic diagram of the positions of the horizontal and vertical card slots; Figure 5 for Figure 4 A top-down view; Figure 6 A partial schematic diagram showing the interaction between the novel low-voltage straight busbar type clamp-type drain clamp and the insulated wrench provided in the embodiments of this application; Figure 7 A partial schematic diagram showing the compression of the longitudinal clamp of the novel low-pressure straight-face busbar type card-type drainage clamp provided in the embodiments of this application; Figure 8 A partial schematic diagram of the lateral locking element of the novel low-pressure straight-face busbar type card-type drainage clamp provided in the embodiments of this application being pushed open.

[0018] (The components represented by the numbers in the diagram are as follows: 1 Standard self-locking quick connector, 2 Conductive adapter, 3 Conductive tube, 4 Insulating shell, 5 Limiting ring, 6 Conductive end sleeve, 7 Conductive voltage head, 8 Lateral clamp, 81 I baffle, 9 Longitudinal clamp, 91 II baffle, 10 Clamping teeth, 11 Longitudinal spring, 12 Lateral spring, 13 Busbar, 14 Insulating wrench) Detailed Implementation To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] See appendix Figures 1-3The novel low-voltage straight busbar type clamp-type drain clamp provided in this embodiment includes: a quick-connect connector, a conductive adapter connector 2, a conductive tube 3, a voltage conductive head 7, a conductive end sleeve 6, clamping teeth 10, an insulating shell 4, a horizontal clamp and a vertical clamp. The conductive adapter 2 is housed inside the insulating housing 4; the quick-connect connector is fixed to the lower part of the conductive adapter 2 and electrically connected through the strip-shaped contact fingers; the upper part of the conductive adapter 2 is provided with a through hole, and the conductive tube 3 is rotatably installed in the through hole of the conductive adapter 2. The conductive tube 3 is electrically connected to the conductive adapter 2 through the strip-shaped contact fingers; wherein, the conductive tube 3 transmits electrical energy to the quick-connect connector through the conductive adapter 2, and the quick-connect connector then transmits electrical energy to the external cable.

[0020] The conductive end sleeve 6 is fixed inside the insulating shell 4; the conductive end sleeve 6 is rotatably sleeved on the conductive tube 3 and the voltage conducting head 7, and the conductive tube 3 is electrically connected to the conductive end sleeve 6 through the strip-shaped contact fingers; the voltage conducting head 7 is electrically connected to the conductive end sleeve 6 through the strip-shaped contact fingers. When power is drawn, the clamping toothed plate 10 pierces the busbar 13 and transmits electrical energy to the voltage conducting head 7. The voltage conducting head 7 transmits electrical energy to the conductive end sleeve 6 through the strip-shaped contact fingers, and the conductive end sleeve 6 transmits electrical energy to the conductive tube 3 through the strip-shaped contact fingers.

[0021] See appendix Figure 2 and 3 The end of the conductive tube 3 is threadedly connected to the voltage conducting head 7; the end of the voltage conducting head 7 has a concave groove, and the clamping tooth 10 is fixed to the end of the voltage conducting head 7 through the concave groove. The clamping tooth 10 is perpendicular to the axis of the conductive tube 3; the conductive tube 3 rotates, causing the voltage conducting head 7 to slide forward, and the voltage conducting head 7 causes the clamping tooth 10 to move forward so as to clamp and pierce the busbar 13.

[0022] The insulating shell 4 is wrapped around the conductive tube 3 and the voltage conducting head 7; the end of the insulating shell 4 near the voltage conducting head 7 is the clamping end; the transverse clamp 8 is slidably disposed at the clamping end of the insulating shell 4; the longitudinal clamp 9 is slidably disposed at the clamping end of the insulating shell 4.

[0023] See appendix Figure 5 The transverse clamping unit is provided with a transverse clamping member 8; the transverse clamping member 8 can move perpendicularly to the axis of the conductive tube 3; the end of the transverse clamping member 8 is provided with a No. I baffle 81 parallel to the clamping tooth 10; the transverse clamping unit is also provided with a transverse sliding frame and a transverse spring 12, the transverse sliding frame is fixed to the clamping end of the insulating shell 4; the voltage conducting head 7 is slidably disposed in the through hole of the transverse sliding frame; the two opposite sides of the transverse sliding frame are provided with transverse sliding grooves perpendicular to the axis of the conductive tube 3; the transverse clamping member 8 is slidably disposed in the transverse sliding groove of the transverse sliding frame; one end of the transverse spring 12 is connected to the transverse sliding frame, and the other end is connected to the transverse clamping member 8; wherein, when the transverse spring 12 is in the initial state, the transverse clamping member 8 is against the transverse sliding frame.

[0024] See appendix Figure 4 and 5 The longitudinal clamping unit is provided with a longitudinal clamping member 9; the longitudinal clamping member 9 can move parallel to the axis of the conductive tube 3; the end of the longitudinal clamping member 9 is provided with a No. II baffle 91 parallel to the clamping tooth 10; the longitudinal clamping unit is also provided with a longitudinal spring 11, and the clamping end of the insulating shell 4 is provided with a longitudinal groove parallel to the axis of the conductive tube 3; the longitudinal clamping member 9 is slidably disposed in the longitudinal groove of the clamping end of the insulating shell 4; one end of the longitudinal spring 11 is connected to the clamping end of the insulating shell 4, and the other end is connected to the longitudinal clamping member 9; wherein, when the longitudinal spring 11 is in the initial state, the No. II baffle 91 of the longitudinal clamping member 9 and the No. I baffle 81 of the transverse clamping member 8 are located on the same plane; when power is being drawn, the No. II baffle 91 of the longitudinal clamping member 9 abuts against the upper part of the busbar 12, and pushing the power-drawing clamp forward will cause the No. II baffle 91 of the longitudinal clamping member 9 to slide backward, and the busbar 13 will move closer to the clamping tooth 10.

[0025] See appendix Figure 3 , 7 Both the transverse clamp 8 and the longitudinal clamp 9 can pass through the gap of the busbar 13; the clamping space between the clamping tooth 10 and the No. I baffle 81 and No. II baffle 91 is used to accommodate the busbar 13; when taking power, the transverse clamp 8 is directly opposite the spacing position of the busbar 13, and the clamping tooth 10 is positioned higher than the position of the busbar 13; the outer side of the longitudinal clamp 9 abuts against the busbar 13 and moves longitudinally backward, so that the upper part of the busbar 13 enters the clamping space, and then the power taking clamp moves down as a whole, the busbar 13 contacts the inner wall of the transverse clamp 8, and the power taking clamp... As the clamp continues to move downwards, busbar 13 is positioned above the upper edge of baffle 91. The longitudinal clamp 9 moves forward under the force of the longitudinal spring 11, at which point busbar 13 is located inside the longitudinal clamp 9. Then, the power-taking clamp moves upwards, and busbar 13 contacts the inner wall of the longitudinal clamp 9. At this point, the position of the clamping tooth 10 is at the same height as the position of busbar 13. Finally, the conductive tube 3 rotates, causing the conductive voltage head 7 to move forward, thereby clamping and fixing busbar 13 between the clamping tooth 10 and baffle 81. Power can then be taken.

[0026] See appendix Figures 1-3 A limiting ring 5 is provided inside the conductive end sleeve 6, and a limiting groove is formed in the conductive tube 3 to cooperate with the limiting ring 5. When the conductive tube 3 rotates, the limiting ring 5 can restrict the axial movement of the conductive tube 3. See appendix. Figure 6The other end of the conductive tube 3 is provided with a slot, and the conductive tube 3 is rotated by an insulated wrench 14 that mates with the slot; when the conductive tube 3 is made of copper, a through hole can be provided at the axial position to reduce weight; if the conductive tube 3 is made of aluminum alloy, the conductive tube 3 can also be solid. The quick-connect connector is a standard self-locking quick-connect connector 1, which is fixed to the lower part of the conductive adapter 2 by a threaded connection; the standard self-locking quick-connect connector 1 is a standard 0.4kV female quick connector specified by the State Grid Corporation of China ( The quick-connector can also be a standard hand-locking quick-connector, i.e., the 0.4kV busbar quick connector specified in the national standard. ) The working principle and operation characteristics of this novel low-pressure straight-face busbar type clamp-type drainage clamp are described below: 1. Initial state: Rotate the conductive tube 3 with the insulating wrench 14 to adjust the distance between the voltage conduction head 7 and the No. I baffle 81 of the transverse clamp 8 and the No. II baffle 91 of the longitudinal clamp 9 to the maximum through the threaded transmission.

[0027] 2. Top busbar state: Push the drain clamp toward busbar 13, the longitudinal spring 11 is gradually compressed, and the No. II baffle 91 of the longitudinal clamp 9 pushes against busbar 13 and moves in the opposite direction.

[0028] 3. Lateral movement clamp state: The drainage clamp moves laterally, the lateral spring 12 is gradually compressed, and the busbar 13 moves against the lateral clamp 8 until the busbar 13 leaves the longitudinal clamp 9.

[0029] 4. Locking state: During the transverse locking process, when the busbar 13 leaves the edge of the longitudinal locking member 9, the longitudinal locking member 9 returns to its original position under the action of the longitudinal spring 11. At this time, when the drainage clamp is moved transversely in the opposite direction, the transverse locking member 8 locks the busbar 13 under the action of the transverse spring 12.

[0030] 5. Insertion into the busbar: When the conductive tube 3 is rotated by the insulating wrench 14, the conductive head 7 is pushed by the thread, reducing the distance between the conductive head 7 and the No. I baffle 81 of the transverse clamp 8 and the No. II baffle 91 of the longitudinal clamp 9, until the clamping tooth 10 inserts into the busbar 13, thus clamping the busbar 13.

[0031] 6. Toothed plate return state: When the work is completed and the drain clamp needs to be removed, rotate the conductive tube 3 in the opposite direction using the insulated wrench 14, and use the thread to pull the voltage guide 7 to increase the distance between the voltage guide 7 and the No. I baffle 81 of the transverse clamp 8 and the No. II baffle 91 of the longitudinal clamp 9 until the voltage guide 7 can no longer move.

[0032] 7. Lateral movement and disengagement state: The drainage clamp moves laterally, the lateral spring 12 is gradually stretched, the busbar 13 moves against the lateral clamp 8 until the busbar 13 leaves the longitudinal clamp 9.

[0033] 8. Swinging disengagement state: Slightly tilt the drain clamp to disengage the lower part of the busbar 13 from the clamping space. At this time, the lower part of the busbar 13 is located outside the No. II baffle 91 of the longitudinal clamp 9. The drain clamp returns to the center and presses down on the longitudinal clamp 9.

[0034] 9. Completely disconnected state: Move the drainage clamp laterally, the lateral spring 12 gradually returns, and the busbar 13 moves in the opposite direction to the lateral retainer 8 until the busbar 13 is separated from the lateral retainer 8. Then, directly pull out the drainage clamp and remove it from the busbar 13.

[0035] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel low-pressure straight-face busbar type clamp-type drainage clamp, characterized in that, include: Quick-connect connectors, conductive tubes, voltage conductive heads, clamping teeth, horizontal and vertical clamping blocks. The quick-connect connector is electrically connected to the conductive tube; The end of the conductive tube is threadedly connected to the voltage-conducting head, and the conductive tube is electrically connected to the voltage-conducting head. The clamping teeth are fixed to the end of the conductive head, and the clamping teeth are perpendicular to the axis of the conductive tube. The transverse card holder is provided with a transverse card; the transverse card can move perpendicularly relative to the axis of the conductive tube; the end of the transverse card is provided with a No. I baffle parallel to the clamping tooth plate; The longitudinal clamping plate is provided with a longitudinal clamping member; the longitudinal clamping member can move parallel to the axis of the conductive tube; the end of the longitudinal clamping member is provided with a No. II baffle parallel to the clamping tooth plate.

2. The novel low-pressure straight-face busbar type clamp-type drainage clamp as described in claim 1, characterized in that, It also includes an insulating shell that wraps around the conductive tube and the voltage-conducting head; the end of the insulating shell near the voltage-conducting head is a clamping end; the transverse clamp is slidably disposed on the clamping end of the insulating shell; the longitudinal clamp is slidably disposed on the clamping end of the insulating shell.

3. The novel low-pressure straight-face busbar type clamp-type drainage clamp as described in claim 2, characterized in that, The horizontal card slot is also equipped with a horizontal sliding frame and a horizontal spring. The transverse sliding frame is fixed to the clamping end of the insulating shell; the conductive head is slidably disposed in the through hole of the transverse sliding frame; the two opposite sides of the transverse sliding frame are provided with transverse sliding grooves perpendicular to the axis of the conductive tube; the transverse clamp is slidably disposed in the transverse sliding groove of the transverse sliding frame; one end of the transverse spring is connected to the transverse sliding frame, and the other end is connected to the transverse clamp.

4. The novel low-pressure straight-face busbar type clamp-type drainage clamp as described in claim 3, characterized in that, The longitudinal card slot is also equipped with a longitudinal spring. The clamping end of the insulating shell is provided with a longitudinal groove parallel to the axis of the conductive tube; the longitudinal clamp is slidably disposed in the longitudinal groove of the clamping end of the insulating shell; one end of the longitudinal spring is connected to the clamping end of the insulating shell, and the other end is connected to the longitudinal clamp.

5. The novel low-pressure straight-face busbar type clamp-type drainage clamp as described in claim 2, characterized in that, It also includes a conductive adapter, which is disposed inside the insulating housing; the quick-connect connector is fixed to the lower part of the conductive adapter and electrically connected through a strip-shaped contact finger; the upper part of the conductive adapter is provided with a through hole, and the conductive tube is rotatably disposed in the through hole of the conductive adapter, and the conductive tube is electrically connected to the conductive adapter through the strip-shaped contact finger.

6. The novel low-pressure straight-face busbar type clamp-type drainage clamp as described in claim 2, characterized in that, It also includes a conductive end sleeve, which is fixed inside the insulating shell; the conductive end sleeve is rotatably sleeved on the conductive tube and the conductive voltage head, and the conductive tube is electrically connected to the conductive end sleeve through a strip-shaped contact finger; the conductive voltage head is electrically connected to the conductive end sleeve through a strip-shaped contact finger.

7. The novel low-pressure straight-face busbar type clamp-type drainage clamp as described in claim 6, characterized in that, A limiting ring is provided inside the conductive end sleeve, and a limiting groove is opened in the conductive tube to cooperate with the limiting ring.

8. The novel low-pressure straight-face busbar type clamp-type drainage clamp as described in claim 1, characterized in that, The other end of the conductive tube is provided with a slot, and the conductive tube can be rotated by an insulated wrench that cooperates with the slot; a through hole is provided at the axial position of the conductive tube.

9. The novel low-pressure straight-face busbar type clamp-type drainage clamp as described in claim 1, characterized in that, The quick-connector is a standard self-locking quick-connector, which is fixed to the lower part of the conductive adapter by a threaded connection.

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