Quick-assembly and quick-disassembly connecting tool for connecting jack box to bus

Abstract

The utility model discloses a quick-assembly and quick-disassembly connecting tool for connecting a jack box to a bus. The frame body can contain the jack box in a semi-surrounding mode, the driving handle can penetrate through the frame body and protrude out of the surface, the clamping arms can be folded to tightly hold the bus and are arranged in pairs, the transmission assembly is located in the frame body and plays a transmission role between the inner end of the driving handle and the clamping arms, and the transmission assembly is provided with a retrograde self-locking mechanism. And the driving handle is screwed and power is transmitted to the clamping arms through the transmission assembly, so that the clamping arms can be quickly closed to hold the bus. The retrograde motion self-locking mechanism blocks power retrograde motion transmission, so that the clamping arms cannot be opened autonomously, thereby realizing self-locking, and enabling the clamping arms to hold the bus tightly all the time to avoid loosening. Unlocking and transmission can be realized by manually and reversely screwing the driving handle, so that the clamping arms are quickly opened, and then the jack box can be taken down.

Description

Technical Field

[0001] This utility model relates to the technical field of connecting plug boxes to busbars, and in particular to a quick-connect and quick-disconnect tool for connecting plug boxes to busbars. Background Technology

[0002] In low-voltage power distribution systems, busbar junction boxes are crucial components for distributing electrical energy from the busbar to various electrical devices. Traditional busbar junction box installation and removal typically require tightening or loosening multiple bolts using screwdrivers or similar tools. This method is not only time-consuming and labor-intensive but also inconvenient in confined spaces, increasing the risk of bolts falling out and impacting installation efficiency and safety. Currently, there is a lack of specialized quick-connect and disconnection tools for busbar junction boxes on the market, making it impossible to achieve rapid connection and disconnection between the junction box and the busbar. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a quick-connect and quick-disconnection tool for connecting the plug box to the busbar, which can realize the quick connection and separation between the plug box and the busbar.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a quick-connect and quick-disconnect connection tool for connecting a plug box to a busbar, which includes a frame body that can partially surround and accommodate the plug box, a drive handle that can pass through the frame body and protrude from the surface, a pair of clamping arms that can close and hold the busbar, and a transmission component located in the frame body and playing a transmission role between the inner end of the drive handle and the clamping arms. The transmission component is provided with a reverse self-locking mechanism.

[0005] As an improvement to the technical solution of the quick-connect and disconnection tool for connecting the plug box to the busbar, the transmission assembly includes a transmission shaft that is connected to the inner end of the drive handle via a pair of bevel gears, a worm gear that is connected to both ends of the transmission shaft via a pair of bevel gears, and worm wheels that are arranged in pairs on the upper and lower sides of the worm gear. The root of the clamping arm is fixedly connected to the side of the worm wheel that is offset from the worm gear.

[0006] As an improvement to the technical solution of the quick-connect and disconnection tool for connecting the plug-in box to the busbar, the drive shaft and worm are both mounted on the inner side of the frame body through bearings; the shaft of the worm wheel is fixedly mounted on the frame body.

[0007] As an improvement to the technical solution of the quick-connect and disconnection tool for connecting the plug box to the busbar, the transmission assembly includes a transmission shaft that is connected to the inner end of the drive handle via a worm gear assembly, a rack that is connected to both ends of the transmission shaft via tooth meshing, and a final gear that is arranged in pairs on the upper and lower sides of the teeth on both sides of the rack and forms a tooth meshing transmission with the rack. The root of the clamping arm is fixedly connected to the side of the final gear that is offset from the rack.

[0008] As an improvement to the technical solution of the quick-connection tool for connecting the plug-in box to the busbar, the front end of the clamping arm is arc-shaped and the inner side is provided with anti-slip texture.

[0009] As an improvement to the technical solution of the quick-installation and quick-disassembly connection tool for connecting the plug-in box to the busbar, the frame body is a portal frame, which includes a top plate and side plates integrally connected to both sides of the top plate, with the two side plates arranged in parallel.

[0010] As an improvement to the technical solution of the quick-connect and disconnection tool for connecting the plug box to the busbar, the bottom end of the side plate is provided with a buckle that can block the bottom of the plug box and prevent it from falling.

[0011] As an improvement to the technical solution of the quick-connect and quick-disconnection tool for connecting the plug box to the busbar, the buckle is a self-locking folding hinge. The self-locking folding hinge includes a base plate fixedly connected to the side plate, a buckle plate hinged to the base plate, a locking shaft passing through the base plate and the side rocker plate of the buckle plate, a press buckle provided at one end of the locking shaft, and a tension spring sleeved on the locking shaft and supporting the press buckle. The rocker plate of the base plate is provided with a meniscus hole through which the locking shaft passes. The head hole of the meniscus hole is larger than the cross-section of the press buckle, and the width of the bend of the meniscus hole is smaller than the cross-section of the press buckle.

[0012] As an improvement to the technical solution of the quick-connect and disconnection tool for connecting the plug-in box to the busbar, the plug-in box is provided with a positioning hole, and the side plate is fixedly connected with a positioning sleeve, a positioning pin that passes through the outer end of the positioning sleeve and can be inserted into the positioning hole, and a shaft push spring sleeved on the positioning pin. The two ends of the shaft push spring respectively abut against the ring shoulder in the middle of the positioning pin and the ring support at the outer end of the positioning sleeve. The outer end of the positioning pin is provided with a pull handle.

[0013] The beneficial effects of this utility model are as follows: Turning the drive handle transmits power to the clamping arm via the transmission assembly, causing the previously retracted clamping arm to open. The opened clamping arm is then placed over the busbar, and turning the drive handle in the opposite direction allows the clamping arm to quickly close and grip the busbar. The transmission assembly is equipped with a reverse self-locking mechanism, which obstructs the reverse transmission of power during the clamping arm's opening tendency, preventing the clamping arm from opening on its own, thus achieving self-locking and ensuring the clamping arm always grips the busbar tightly to prevent loosening. Manually turning the drive handle in the opposite direction unlocks and transmits power, allowing the clamping arm to open quickly, after which the connector box can be removed, enabling rapid connection and separation between the connector box and the busbar. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of the first embodiment of the quick-connect and disconnection tool for connecting a plug-in box to a busbar according to the present invention.

[0015] Figure 2 for Figure 1 The diagram shows the side structure of the quick-release connection tool.

[0016] Figure 3 This is a front structural diagram of a second embodiment of the quick-connect and disconnection tool for connecting a plug-in box to a busbar according to the present invention.

[0017] Figure 4 for Figure 3 The diagram shows the side structure of the quick-release connection tool. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] like Figure 1 , Figure 2The first embodiment shown in this invention provides a quick-connect and quick-disconnect tool for connecting a plug-in box to a busbar. It includes a frame 12 that partially encloses and accommodates the plug-in box 11, a drive handle 15 that passes through the frame 12 and protrudes from its surface, paired clamping arms 29 that can close to grip the busbar 19, and a transmission assembly 13 located within the frame 12 and acting as a transmission link between the inner end of the drive handle 15 and the clamping arms 29. The transmission assembly is equipped with a reverse self-locking mechanism. The bottom of the frame 12 has a buckle to prevent the plug-in box 11 from falling. Twisting the drive handle 15 transmits power to the clamping arms 29 through the transmission assembly 13, causing the previously closed clamping arms 29 to open. The opened clamping arms 29 are then placed on the upper and lower sides of the busbar 19. Twisting the drive handle 15 in the opposite direction allows the clamping arms 29 to quickly close and grip the busbar 19. The transmission assembly is equipped with a reverse self-locking mechanism. The reverse transmission of power to the clamping arm 29 during its opening trend is blocked, preventing the clamping arm 29 from opening on its own, thus achieving self-locking and ensuring that the clamping arm 29 always holds the busbar 19 tightly to prevent it from loosening. Manually turning the drive handle 15 in the reverse direction can unlock and transmit power, causing the clamping arm 29 to open quickly. Then, the connector box can be removed, thereby enabling quick connection and separation between the connector box 11 and the busbar 19.

[0020] Specifically, the transmission assembly 13 includes a transmission shaft 31 connected to the inner end of the drive handle 15 via a pair of bevel gears 33a, a worm gear 35 connected to both ends of the transmission shaft 31 via a pair of bevel gears 33b, and worm wheels 36 arranged in pairs on the upper and lower sides of the worm gear 35. The root of the clamping arm 29 is fixedly connected to the side of the worm wheel 36 that is offset from the worm gear 35. The drive handle 15 is turned to generate power, which is transmitted through the transmission shaft 31 and the worm gear 35, and the transmission direction is changed through the bevel gears 33a and 33b, causing the pair of worm wheels 36 to rotate. This allows the clamping arm 29 to swing, either closing and clamping the cable 19 or opening and releasing it. The worm wheel 36 and the worm gear 35 can only transmit power in one direction and cannot move in the opposite direction, thus possessing a reverse self-locking function. Turning the drive handle 15 can quickly transmit power to the clamping arm 29 in either the forward or reverse direction, causing it to close or open.

[0021] Furthermore, the transmission shaft 31 and the worm gear 35 are both mounted on the inner side of the frame body 12 via bearings 32, so that the transmission assembly is stably set inside the frame body 12; the shaft of the worm wheel 36 is fixedly mounted on the frame body 12, forming a support fulcrum.

[0022] The front end of the clamping arm 29 is arc-shaped to facilitate closing and holding the busbar 19, and the inner side is provided with anti-slip texture to make the holding more stable, which can increase the friction between the arm and the busbar conductor, prevent slippage during the clamping process, and ensure the reliability of the connection.

[0023] The frame 12 is a portal frame, comprising a top plate 21 and side plates 22 integrally connected to both sides of the top plate. The two side plates 22 are arranged in parallel to facilitate the insertion of the plug-in box 11 from the open side. The drive shaft 31 is located on the bottom side of the top plate 21, facilitating the construction of a double bevel gear transmission structure with the inner end of the drive handle 15. The clamping arm 29 is located on the inner side of the side plate 22, facilitating the construction of a double bevel gear transmission structure with the drive shaft 31 via a worm gear and worm.

[0024] Furthermore, the bottom end of the side plate 22 is provided with a buckle that can block the bottom of the plug box 11 and prevent it from falling. The buckle is in the form of a switch. When it is open, it does not block the insertion and removal of the plug box 11. When it is closed, it can make the plug box 11 inserted into the frame body 12 stay stably inside the frame body 12.

[0025] Specifically, the buckle is a self-locking folding hinge 16, which includes a base plate 62 fixedly connected to the side plate 22, a buckle plate 63 hinged to the base plate 62, a locking shaft 61 passing through the side rocker plate of the base plate 62 and the buckle plate 63, a press buckle 65 located at one end of the locking shaft 61, and a tension spring 66 sleeved on the locking shaft 61 and supporting the press buckle. The rocker plate of the base plate 62 is provided with a meniscus hole 68 through which the locking shaft 61 passes. The head hole of the meniscus hole 68 is larger than the cross-section of the press buckle, and the width of the bend of the meniscus hole 68 is smaller than the cross-section of the press buckle. The snap fastener 65 has a top support head. When it overcomes the pushing and restoring force of the tension spring 66, it can push the snap fastener 65 to the inside of the seat plate 62 and thus move away from the meniscus 68. The snap fastener 65 is axially offset from the rocker plate of the seat plate 62, so that the buckle plate 63 can swing. During the swinging process, the locking shaft 61 can swing at the meniscus 68. Under the restoring force of the tension spring 66, the end face of the snap fastener 65 presses against the inner side of the rocker plate of the seat plate 62, so that the buckle plate 63 and the seat plate 62 are folded together to a 180° closed state. At this time, the plug box 11 can be inserted or removed. When the buckle plate 63 is turned 90° in the opposite direction, the pressing buckle 65 reaches the head hole position of the crescent hole 68. Under the restoring force of the tension spring 66, the pressing buckle 65 extends into the head hole, preventing the buckle plate 63 from closing in the opposite direction. This keeps the buckle plate 63 and the base plate 62 in a 90° perpendicular state. In other words, the buckle plate 63 extends laterally to form a blocking part, restricting the insertion box 11 from entering and exiting, and keeping it inside the frame body 12.

[0026] Furthermore, the connector box 11 is provided with a positioning hole 18. The side plate 22 is fixedly connected to a positioning sleeve 23, a positioning pin 25 that passes through the outer end of the positioning sleeve 23 and whose inner end can be inserted into the positioning hole 18, and a push spring 26 sleeved on the positioning pin. The two ends of the push spring 26 respectively abut against the ring shoulder 28 in the middle of the positioning pin 25 and the ring support at the outer end of the positioning sleeve 23. The outer end of the positioning pin 25 is provided with a pull handle 27. Under the action of the push spring 26, the front end of the positioning pin 25 is inserted into the positioning hole 18, ensuring accurate alignment between the quick-installation and quick-disassembly connection tool and the connector box, avoiding misalignment during installation, and improving the stability and safety of the installation. Pulling the pull handle 27 from the outside can remove the front end of the positioning pin 25 from the positioning hole 18, thereby releasing the constraint on the connector box 11.

[0027] Among them, such as Figure 3 , Figure 4 The second embodiment shown differs from the first embodiment in that the transmission assembly 13 includes a transmission shaft 31 connected to the inner end of the drive handle 15 via a worm gear assembly 38, a rack 41 connected to both ends of the transmission shaft 31 via gear meshing, and a final gear 39 located on the upper and lower sides of the rack 41's double-sided teeth 42, paired and meshing with the rack 41. The root of the clamping arm 29 is fixedly connected to the side of the final gear 39 that is offset from the rack 41. The two ends of the transmission shaft 31 are connected to a middle gear 45 that meshes with the single-sided teeth 43 of the rack 41. A limiting block 46 is fixedly connected to the frame 12 to limit the back of the single-sided teeth 43 of the rack 41, ensuring good meshing between the single-sided teeth 43 and the middle gear 45. A guide sleeve 49 is fixedly connected to the frame 12 to hold and guide the guide rod in the middle section of the rack 41, allowing it to move only axially. The drive handle 15 is turned to generate power, which is transmitted through the drive shaft 31 and rack 41. The transmission direction is changed through the meshing of the worm gear assembly 38 and the rack and pinion, causing a pair of final gears 39 to rotate. This, in turn, causes the clamping arm 29 to swing, either closing and clamping the cable 19 or opening and releasing it. The worm wheel and worm in the worm gear assembly 38 can only transmit power in one direction and cannot move in the opposite direction, thus possessing a reverse self-locking function. Turning the drive handle 15 can quickly transmit power to the clamping arm 29 in either the forward or reverse direction, causing it to close or open.

[0028] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A quick-connect and disconnection tool for connecting a plug-in box to a busbar, characterized in that: It includes a frame body that can partially enclose and accommodate the plug box, a drive handle that can pass through the frame body and protrude from the surface, a pair of clamping arms that can close and hold the busbar, and a transmission component located in the frame body and playing a transmission role between the inner end of the drive handle and the clamping arms. The transmission component is provided with a reverse self-locking mechanism.

2. The quick-connect and disconnection tool for connecting a plug-in box to a busbar according to claim 1, characterized in that: The transmission assembly includes a transmission shaft that is connected to the inner end of the drive handle via a pair of bevel gears, a worm gear that is connected to both ends of the transmission shaft via a pair of bevel gears, and worm wheels that are arranged in pairs on the upper and lower sides of the worm gear. The root of the clamping arm is fixedly connected to the side of the worm wheel that is offset from the worm gear.

3. The quick-connect and disconnection tool for connecting a plug-in box to a busbar according to claim 2, characterized in that: The drive shaft and worm gear are both mounted on the inner side of the frame body via bearings; the shaft of the worm wheel is fixedly mounted on the frame body.

4. The quick-connect and disconnection tool for connecting a plug-in box to a busbar according to claim 1, characterized in that: The transmission assembly includes a transmission shaft that is connected to the inner end of the drive handle via a worm gear assembly, a rack that is connected to both ends of the transmission shaft via tooth meshing, and a final gear that is arranged in pairs on the upper and lower sides of the rack's teeth and meshes with the rack. The root of the clamping arm is fixedly connected to the side of the final gear that is offset from the rack.

5. The quick-connect and disconnection tool for connecting a plug-in box to a busbar according to claim 1, characterized in that: The front end of the clamping arm is arc-shaped and has anti-slip texture on the inner side.

6. The quick-connect and disconnection tool for connecting a plug-in box to a busbar according to claim 1, characterized in that: The frame is a portal frame, which includes a top plate and side plates integrally connected to both sides of the top plate, with the two side plates arranged in parallel.

7. The quick-connect and disconnection tool for connecting a plug-in box to a busbar according to claim 6, characterized in that: The bottom end of the side panel is provided with a buckle that can block the bottom of the plug box and prevent it from falling.

8. The quick-connect and disconnection tool for connecting a plug-in box to a busbar according to claim 7, characterized in that: The buckle is a self-locking folding hinge, which includes a base plate fixedly connected to the side plate, a buckle plate hinged to the base plate, a locking shaft passing through the base plate and the side rocker plate of the buckle plate, a press buckle located at one end of the locking shaft, and a tension spring sleeved on the locking shaft and supporting the press buckle. The rocker plate of the base plate has a meniscus hole through which the locking shaft passes. The head hole of the meniscus hole is larger than the cross-section of the press buckle, and the width of the bend of the meniscus hole is smaller than the cross-section of the press buckle.

9. The quick-connect and disconnection tool for connecting a plug-in box to a busbar according to claim 6, characterized in that: The plug-in box is provided with a positioning hole. The side plate is fixedly connected with a positioning sleeve, a positioning pin that passes through the outer end of the positioning sleeve and can be inserted into the positioning hole at the inner end, and a shaft push spring sleeved on the positioning pin. The two ends of the shaft push spring respectively abut against the ring shoulder in the middle of the positioning pin and the ring support at the outer end of the positioning sleeve. The outer end of the positioning pin is provided with a pull handle.

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