A quick-mounting and quick-detaching cable branch box

Abstract

The application belongs to the technical field of branch boxes, and particularly relates to a quick-mounting and quick-dismounting cable branch box which comprises a cabinet body assembly, a cabinet top assembly and a base assembly. The cabinet top assembly and the base assembly in the application can be accommodated into a square to facilitate stacking and transportation. The cabinet body assembly can also be folded and accommodated into a flat state to facilitate stacking and transportation. The accommodation of the cabinet top assembly, the cabinet body assembly and the base assembly greatly reduces the transportation space and is beneficial to increasing the transportation quantity. The plug-in cooperation of the first connecting head and the second connecting head can avoid the contact scratching problem caused by plug-in of the traditional plug-in connector.

Description

Technical Field

[0001] This invention belongs to the field of branch box technology, and particularly relates to a quick-installation and quick-disassembly cable branch box. Background Technology

[0002] Cable distribution boxes are key equipment in power distribution systems used for cable line branching, switching, and power distribution. They are widely used in medium and low voltage distribution networks, and are especially suitable for urban cable renovation projects. Like a "transportation hub" in the power system, they efficiently distribute the power from the main cable to multiple branch lines, meeting the power needs of different areas.

[0003] Existing cable distribution boxes generally do not have the function of folding for easy storage and transportation, nor do they have the function of quick installation and disassembly.

[0004] This invention designs a quick-installation and quick-disassembly cable branch box to solve the above problems. Summary of the Invention

[0005] Therefore, it is necessary to provide a quick-installation and quick-disassembly cable branch box to address the existing problems of current cable branch boxes. This design utilizes a top assembly, a base assembly, and a cabinet body assembly to facilitate the quick installation and disassembly of the branch box for easy transportation.

[0006] The above objectives are achieved through the following technical solutions: A quick-installation and quick-disconnect cable branch box for power distribution and transmission, comprising: The cabinet body assembly has a flat, foldable structure that facilitates transportation and storage.

[0007] The cabinet top assembly includes a top shell with an opening on the lower side that mates with the upper end of the cabinet body assembly. Each of the four sides of the top shell is hinged with a first baffle that controls the opening and closing of the third heat dissipation groove on the corresponding side of the top shell and provides rain protection. Two second baffles are symmetrically hinged to the inner lower end of the top shell, controlling the opening at the lower end. A transmission shell, with its upper and lower ends connected to the second heat dissipation groove, slides vertically within the top shell. Each of the four sides of the transmission shell is hinged to a top rod that closes and retracts the second baffle when the transmission shell moves inward. The transmission shell has a heat dissipation structure and a branch connector for splitting power into two and being externally insulated. Each of the three ends of the branch connector has a first connector and a second connector for plugging and connecting the branch connector end to a cable. The first and second connectors have structural features that improve the stability of the electrical connection, and the second connector also has a structural feature that automatically strips the cable.

[0008] The base assembly includes a base body, and the upper and lower sides of the base body are respectively provided with a first insertion groove that mates with the lower end of the cabinet assembly and a moisture-proof cavity opposite to the cable well. The moisture-proof cavity is provided with a first locking structure that automatically locks the cabinet assembly and a pair of second locking structures that establish a connection with the cable well wall when triggered by the cabinet assembly and automatically lock the branch box at the cable well when it is moved by external force.

[0009] In one embodiment, a moisture-venting hole is provided on the side wall of the moisture-proof cavity, and a cable-passing hole is provided on the top of the moisture-proof cavity.

[0010] In one embodiment, the cabinet assembly includes a back panel, with a first bend plate and a second bend plate fixedly disposed on both sides of the back panel. A first side panel and a second side panel are hinged to the side ends of the first bend plate and the second side panel, respectively. A third bend plate is hinged to the side ends of both the first side panel and the second side panel. Each of the two third bend plates has a cabinet door with a movable groove on the front side of a first insertion slot. Two corner positioning strips are fitted between the back panel and the first and second side panels to fix the unfolded first and second side panels to the back panel and to engage with a second insertion slot at the rear corner of the first insertion slot. Corner positioning strips are fitted between the first and second side panels and the corresponding third bend plates to fix the unfolded third bend plates and to engage with a second insertion slot at the front corner of the first insertion slot. Two dovetail slides are disposed on the inner side of the corner positioning strips. The dovetail slides engage with dovetail grooves on the outer side of the back panel, the first side panel, the second side panel, or the third bend plate.

[0011] In one embodiment, the first locking structure includes two first V-bars symmetrically arranged on both sides of the moisture barrier. The corners of the first V-bars are hinged to the sidewalls of the moisture barrier. The upper ends of the first V-bars are movable within a first movable groove at the top of the moisture barrier. The upper ends of the first V-bars are provided with a first locking hook that engages with a first locking groove on the inner side of the lower end of the first or second side plate. The end of the first locking hook is provided with an inclined surface that allows the upper end of the first V-bar to swing inward by engaging with the lower end of the first or second side plate. The lower end of the first V-bars is hinged to the lower end of a trigger rod that slides vertically within a first guide sleeve at the center of the top of the moisture barrier. The trigger rod is provided with a first spring that causes the trigger rod to move upward.

[0012] In one embodiment, the second lock structure includes two left-right distributed first rod sleeves, two second rod sleeves corresponding to the first rod sleeves, and two left-right distributed second V-bars. The first rod sleeves are hinged to the top of the moisture barrier cavity by horizontal hinge pins parallel to the corresponding sidewalls of the first insertion slot. A first inner rod is slidably disposed at one end of the first rod sleeve, with its end engaging with the corresponding sidewall of the first insertion slot and the lower end of the cabinet assembly. The first inner rod moves within a second movable groove located on the top side of the moisture barrier cavity, which limits the upward swing amplitude of the first inner rod. A second spring is disposed within the first rod sleeve to abut against the corresponding sidewall of the first insertion slot. The other end of the first rod sleeve is hinged to the upper end of the corresponding second rod sleeve. A second inner rod is slidably disposed within the lower end of the second rod sleeve. A third spring is disposed within the second rod sleeve to retract the second inner rod inward. A second V-bar is recessed at the lower end of the second inner rod and the corner of the corresponding side. One end of the second V-rod is hinged, and the other end of the second V-rod is provided with a first gear that engages with the inner wall of the corresponding side of the cable well. At the corner of the second V-rod, a positioning rod is hinged and detachably fixed in a vertical state on the reinforcing frame inside the moisture barrier. Two arc-shaped first racks are symmetrically arranged on the positioning rod along the axial direction of the first gear. The first racks are on the same central axis as the hinge pins of the positioning rod and the second V-rod. The first racks mesh with the eighth gear located on the corresponding side of the second V-rod. The eighth gear meshes with the seventh gear located on the corresponding side of the second V-rod. The seventh gear meshes with the sixth gear located on the corresponding side of the second V-rod. The sixth gear meshes with the fifth gear located on the corresponding side of the second V-rod. The fifth gear meshes with the fourth gear located on the corresponding side of the second V-rod. The fourth gear meshes with the third gear located on the corresponding side of the second V-rod. The third gear meshes with the second gear located at the corresponding end of the pin shaft where the first gear is located.

[0013] In one embodiment, the upper end of the positioning rod is provided with a first retaining sleeve, which is fixed to a second retaining sleeve on the reinforcing frame by a bolt with a nut threaded to it. The inner wall of the first retaining sleeve has four first slots distributed at 90-degree intervals around the circumference, and the inner wall of the second retaining sleeve has second slots that correspond one-to-one with the first slots. The bolt is provided with four locking keys that cooperate with the first and second slots.

[0014] In one embodiment, the first baffle is hinged to the underside of the eaves at the top edge of the top shell. An elastic membrane is connected between the adjacent side ends of any two adjacent first baffles to block the gaps generated when they are unfolded. The branch joint is mounted on the underside of the transmission shell via a bracket. A connecting plate is provided on the underside of the insulating sleeve on the outer side of the branch joint. A first locking bolt is threaded onto the connecting plate. The movable end of the second baffle is provided with a semi-circular groove. When the two second baffles are closed, the semi-circular grooves on the two second baffles merge into a full circular groove. A semi-circular hole is provided on the straight edge of the semi-circular groove. When the two semi-circular holes on the two semi-circular grooves are closed, they merge into a perfect circular hole that mates with the first locking bolt. A second locking bolt that mates with the first side plate or the second side plate is provided on the second baffle.

[0015] In one embodiment, the heat dissipation structure includes a fixed column fixed at the center of the second heat dissipation groove inside the transmission housing and a motor fixed inside the transmission housing. A rotating sleeve is rotatably disposed on the fixed column, and a plurality of heat dissipation blades are disposed on the rotating sleeve to allow heat inside the cabinet assembly to rise from bottom to top. A second pulley is disposed on the output shaft of the motor, and the second pulley is connected to a first pulley disposed on the rotating sleeve via a synchronous belt.

[0016] In one embodiment, the first connector includes a first contact connected to the corresponding end of the branch connector. A first protective sleeve connected to an insulating sleeve is provided on the outer side of the first contact. The end of the first protective sleeve has two third movable grooves, one on each side of the first contact. A pressure rod is hinged to the end wall of the third movable groove via a hinge shaft perpendicular to the axis of the first protective sleeve. A first spiral spring connecting the pressure rod to the corresponding hinge shaft opens the pressure rod. An arc-shaped copper contact piece mates with the corresponding side of the first contact and the second connector is provided on the inner side of the pressure rod. A first sliding groove is provided on the end face of the first contact. A trigger bar is slidably disposed within the first sliding groove along the longitudinal direction of the first contact, and a fifth spring is provided to make the end of the trigger bar protrude from the opening of the first sliding groove. A limiting sleeve slidably disposed on the first protective sleeve, mates with the pressure rod and the second connector. A fourth spring connecting the end of the limiting sleeve to a first limiting ring on the first protective sleeve moves the limiting sleeve in the direction of the pressure rod. The upper part of the retaining sleeve has two second locking grooves spaced 180 degrees apart circumferentially. An unlocking hook is hinged to the end wall of the second locking groove near the fourth spring via a hinge shaft. A second spiral spring connects the unlocking hook to the corresponding hinge shaft to open the unlocking hook. The end of the retaining sleeve has two insert rods spaced 180 degrees apart circumferentially. Two friction strips are symmetrically arranged on both sides of the insert rods. The first protective sleeve has a second limiting ring that limits the return range of the retaining sleeve. The two sides of the trigger strip mesh one-to-one with two tenth gears located on both sides of the first slide groove. Both tenth gears are coaxially connected to a ninth gear. The ninth gear meshes with a locking rod that slides laterally along the first contact and penetrates the second slide groove of the first protective sleeve. The trigger rod has a fourth movable groove to prevent interference with the locking rod. The end of the locking rod has a tooth angle that engages with a tooth groove on the inner wall of the retaining sleeve. The tooth angle prevents the retaining sleeve from sliding towards the pressure rod but does not prevent the return of the retaining sleeve.

[0017] In one embodiment, the second connector includes a second protective sleeve and a third protective sleeve connected to the second protective sleeve. The second protective sleeve contains a second contact that mates with a first contact, a copper contact plate, and a trigger bar. Two third sliding grooves, distributed 180 degrees circumferentially and corresponding to the second locking grooves, and two fifth movable grooves, corresponding to and communicating with the third sliding grooves, are formed on the outer side of the second protective sleeve. The fifth movable grooves and the third protective sleeves are located at both ends of the third sliding grooves. A pull rod is slidably arranged longitudinally along the second contact within the third sliding groove, and a sixth spring is provided to pull the corresponding pull rod from the fifth movable groove towards the third protective sleeve. The end of the pull rod is hinged via a hinge shaft to a second locking hook that mates with the corresponding second locking groove and the fifth movable groove. The end of the second locking hook has an inclined surface that does not obstruct the movement of the limiting sleeve towards the first protective sleeve. A third spiral spring connects the second locking hook to the corresponding hinge shaft, allowing the second locking hook to swing into the second locking groove. The second protective sleeve has two eleventh gears that mesh with the pull rods one-to-one via two rotating shafts. Each end of the rotating shaft has a twelfth gear via a one-way ring. The twelfth gear engages with a friction wheel on the corresponding side friction strip of the corresponding side insertion rod. The third protective sleeve has two cutting wheels spaced 180 degrees circumferentially inside its port, designed to cut the sheath of the inserted cable. The third protective sleeve also has two sharp-angled blocks inside, separating the cable sheath cut by the cutting wheels to both sides. The inner wall of the third protective sleeve has two fourth sliding grooves located at the ends of the sharp-angled blocks. A copper clamping block, which presses against the copper core of the cable, slides radially within the fourth sliding groove along the third protective sleeve. The clamping block is connected to the second contact via an elastic sheet. A screw threadedly connected to the third protective sleeve is rotatably connected to the clamping block. A torsion wheel is located at the outer end of the screw. The inner wall of the third protective sleeve has a receiving groove to accommodate the sheath of the cable separated by the sharp-angled blocks.

[0018] The beneficial effects of this invention are: 1. The cabinet top component and base component in this invention can be stored into a cube that is easy to stack and transport, while the cabinet body component can also be folded and stored into a flat state that is easy to stack and transport. The storage of the cabinet top component, cabinet body component and base component greatly reduces the transportation space and helps to increase the number of items transported.

[0019] 2. In this invention, the base assembly, cabinet body assembly, and cabinet top assembly are assembled sequentially using a quick-release mechanism. The second locking structure in the base assembly, used for connecting to the cable well, is only triggered after the cabinet body assembly is installed on the base assembly, thus securing the base assembly to the cable well. The first locking structure on the base assembly automatically locks the cabinet body assembly and the base assembly after they are connected. Because the first locking structure is located inside the base assembly, it is not damaged externally. As long as the cabinet body assembly is not separated from the base assembly, the second locking structure in the base assembly will automatically further secure the base assembly to the cable well when the base assembly connected to the cabinet body assembly is subjected to external force. The greater the external force received, the better the locking effect. The first locking structure on the base assembly can only be manually unlocked after the cabinet door is opened, providing a strong protective effect.

[0020] 3. The three ends of the branch connector in the cabinet top assembly of the present invention, which are used to connect the first and second connectors for connecting cables, can realize quick-connect stripping connection between the second connector and the cable and quick-connect and quick-disconnect installation between the first connector and the second connector. After the first connector and the second connector are connected, they can be automatically locked and a pre-tension force can be automatically established to prevent the connection between the first connector and the second connector from loosening, so as to ensure a stable electrical connection between the first contact in the first connector and the second contact in the second connector.

[0021] 4. In this invention, the two copper contacts of the first connector can provide a double guarantee for the electrical connection between the first contact and the second contact after the first connector and the second connector are connected, avoiding the disconnection of the first contact and the second contact due to vibration or other reasons, and ensuring a stable electrical connection between the first contact and the second contact.

[0022] 5. The insertion and mating of the first connector and the second connector in this invention can avoid the problem of contact scratches caused by insertion in traditional plug-in connectors. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of the present invention and its overall contents; Figure 2 This is the first sectional view of the base assembly and cabinet body assembly in tandem; Figure 3 This is the second sectional view of the base assembly and cabinet body assembly in tandem; Figure 4 This is a base assembly and its first sectional view; Figure 5 This is the second sectional view of the base assembly; Figure 6 This is a schematic diagram of the first ferrule, the second ferrule, and the insert structure; Figure 7 It is a view of the base structure and its cross-section; Figure 8 This is a schematic diagram of the cabinet components in their unfolded state; Figure 9 This is a diagram showing the cabinet components in their stored state; Figure 10 This is a schematic diagram of a corner positioning strip; Figure 11 This is a top sectional view of the base assembly and cabinet body assembly in tandem; Figure 12 This is a cross-sectional view of the cabinet top assembly in its stored state; Figure 13 This is a schematic diagram of the unfolded state of the top cabinet components; Figure 14 This is a cross-sectional view of the cabinet top assembly and cabinet body assembly in the unfolded state. Figure 15 This is a schematic diagram of the top shell structure; Figure 16 This is a branch joint structure and its sectional view; Figure 17 This is a schematic diagram showing the mating of the first connector and the second connector; Figure 18 This is a first sectional view showing the mating of the first connector and the second connector; Figure 19 This is a second sectional view showing the mating of the first connector and the second connector; Figure 20 This is a cross-sectional view of the first connector structure; Figure 21 This is the first sectional view of the second connector structure; Figure 22 This is the second sectional view of the second connector structure; Labels in the diagram: 100. Base assembly; 101. Seat body; 102. Moisture-proof cavity; 103. Moisture vent hole; 104. First guide sleeve; 105. Cable hole; 106. First movable groove; 107. Second movable groove; 108. First insertion groove; 109. Movable opening; 110. Second insertion groove; 111. First locking structure; 112. First V-rod; 113. First locking hook; 114. Connecting rod; 115. Trigger rod; 116. First spring; 117. Reinforcing frame; 118. Second locking structure; 119. First rod sleeve; 120. First inner rod; 121. 122. Second spring; 123. Second rod sleeve; 124. Third spring; 125. Second inner rod; 126. Second V-rod; 127. Positioning rod; 128. First retaining sleeve; 129. First retaining groove; 130. Second retaining sleeve; 131. Second retaining groove; 132. Bolt; 133. Locking key; 134. Nut; 135. First rack; 136. Second gear; 137. Third gear; 138. Fourth gear; 139. Fifth gear; 140. Sixth gear; 141. Seventh gear; 142. Eighth gear; 200. Cabinet body assembly; 201. Back panel; 202. First corner panel; 203. Second corner panel; 204. First side panel; 205. Second side panel; 206. Third corner panel; 207. Cabinet door; 208. Dovetail groove; 209. Corner positioning strip; 210. Dovetail slide; 211. First lock groove; 300. Cabinet top assembly; 301. Top shell; 302. Eaves; 303. First heat dissipation groove; 304. First baffle; 305. Elastic membrane; 306. Top rod; 307. Second baffle; 308. Positioning hole; 309. Semicircular groove; 310. Semicircular hole; 311. Transmission housing; 312. Second heat dissipation groove; 313. Heat dissipation structure; 314. Fixing column; 315. Heat dissipation blades; 316. First pulley; 317. Synchronous belt; 318. Second pulley; 319. Motor; 320. Bracket; 321. Branch connector; 322. Insulating sleeve; 323. Connecting plate; 324. First locking bolt; 325. First connector; 326. First protective sleeve; 327. First limiting ring; 328. Second limiting ring; 329. Third movable groove; 330. Pressure rod; 332. First spiral spring; 333. Copper contact piece; 334. Limiting sleeve; 335. Second locking groove; 336. Unlocking hook; 337. Second spiral spring; 33 8. Fourth spring; 339. First contact; 340. First slide groove; 341. Fifth spring; 342. Second slide groove; 343. Trigger bar; 344. Fourth movable groove; 345. Locking rod; 346. Sharp corner; 347. Ninth gear; 348. Tenth gear; 349. Tooth groove; 350. Insert rod; 351. Friction bar; 352. Second connector; 353. Second protective sleeve; 354. Third slide groove; 355. Fifth movable groove; 356. Sixth 357. Spring; 358. Pull rod; 359. Third spiral spring; 360. Second locking hook; 361. Eleventh gear; 362. Rotating shaft; 363. One-way ring; 364. Friction wheel; 365. Second contact; 366. Third protective sleeve; 367. Receiving groove; 368. Fourth sliding groove; 369. Cutting wheel; 370. Sharp corner block; 371. Clamping block; 372. Elastic sheet; 373. Screw; 374. Torsion wheel; 375. Second locking bolt; 376. Rotating sleeve. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0025] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 invention.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] like Figure 1-22 As shown, a quick-installation and quick-disconnect cable branch box, used for power distribution and transmission, includes: The cabinet assembly 200 has a flat, foldable structure that facilitates transportation and storage.

[0028] The cabinet top assembly 300 includes a top shell 301 with a lower opening that engages with the upper end of the cabinet body assembly 200. Each of the four sides of the top shell 301 is hinged with a first baffle 304 that controls the opening and closing of the third heat dissipation groove on the corresponding side of the top shell 301 and provides rain protection. Two second baffles 307 are symmetrically hinged to the inner lower end of the top shell 301, controlling the opening at the lower end. A transmission shell 311, with its upper and lower ends providing penetration of the second heat dissipation groove 312, slides vertically within the top shell 301. Each of the four sides of the transmission shell 311 is hinged to the corresponding second baffle 307. When 311 moves inward, it causes the second baffle 307 to close and retract the top rod 306. The transmission housing 311 has a heat dissipation structure 313 and a branch connector 321 for one-to-two power distribution and an outer insulating sleeve 322 respectively. The three ends of the branch connector 321 are provided with a first connector 325 and a second connector 352 for plugging and connecting the end of the branch connector 321 to the cable. The first connector 325 and the second connector 352 have structural features to improve the stability of the electrical connection. The second connector 352 also has the structural feature of automatically stripping the cable.

[0029] The base assembly 100 includes a base body 101. The upper and lower sides of the base body 101 are respectively provided with a first insertion groove 108 that mates with the lower end of the cabinet assembly 200 and a moisture barrier 102 that is opposite to the cable well. The moisture barrier 102 is provided with a first locking structure 111 that automatically locks the cabinet assembly 200 and a pair of second locking structures 118 that establish a connection with the cable well wall when triggered by the cabinet assembly 200 and automatically lock the branch box at the cable well when it is moved by external force.

[0030] In a further embodiment, such as Figure 7 As shown, a moisture-venting hole 103 is provided on the side wall of the moisture-proof cavity 102, and a cable-passing hole 105 is provided on the top of the moisture-proof cavity 102.

[0031] In a further embodiment, such as Figures 8-10As shown, the cabinet assembly 200 includes a back panel 201. A first bend 202 and a second bend 203 are fixedly disposed on both sides of the back panel 201. A first side panel 204 and a second side panel 205 are hinged to the side ends of the first bend 202 and the second bend 203, respectively. A third bend 206 is hinged to the side ends of both the first side panel 204 and the second side panel 205. Each of the two third bend 206 has a cabinet door 207 that engages with the movable groove on the front side of a first insertion groove 108. Two unfoldable first side panels 204 and second side panels 205 are fitted between the back panel 201 and the first side panels 204 and the second side panels 205. The two side plates 205 are fixed to the back plate 201 and cooperate with the second insertion groove 110 at the rear corner of the first insertion groove 108. The first side plate 204 and the second side plate 205 are both fitted with the corresponding third corner plate 206, and the corner positioning strip 209 is fixed to the unfolded third corner plate 206 and cooperates with the second insertion groove 110 at the front corner of the first insertion groove 108. The inner side of the corner positioning strip 209 is provided with two dovetail slides 210, and the dovetail slides 210 cooperate with the dovetail grooves 208 on the outer side of the back plate 201, the first side plate 204, the second side plate 205, or the third corner plate 206.

[0032] In a further embodiment, such as Figure 2 As shown, the first locking structure 111 includes two first V-bars 112 symmetrically arranged on both sides of the moisture barrier 102. The corners of the first V-bars 112 are hinged to the sidewalls of the moisture barrier 102. The upper ends of the first V-bars 112 are movable in the first movable groove 106 at the top of the moisture barrier 102. The upper ends of the first V-bars 112 are provided with first locking hooks 113 that cooperate with the first locking groove 211 on the inner side of the lower end of the first side plate 204 or the second side plate 205. The end of the first locking hook 113 is provided with an inclined surface that causes the upper end of the first V-bars 112 to swing inward by cooperating with the lower end of the first side plate 204 or the second side plate 205. The lower end of the first V-bars 112 is hinged to the lower end of the trigger rod 115, which slides vertically in the first guide sleeve 104 at the top center of the moisture barrier 102, by a connecting rod 114. The trigger rod 115 is provided with a first spring 116 that causes the trigger rod 115 to move upward.

[0033] In a further embodiment, such as Figures 3-5 , Figure 7As shown, the second lock structure 118 includes two left-right distributed first rod sleeves 119, two second rod sleeves 122 corresponding to the first rod sleeves 119, and two left-right distributed second V-bars 125. The first rod sleeves 119 are hinged to the top of the moisture barrier 102 by horizontal hinge pins parallel to the corresponding sidewalls of the first insertion slot 108. A first inner rod 120 is slidably disposed at one end of the first rod sleeve 119, the end of which cooperates with the corresponding sidewall of the first insertion slot 108 and the lower end of the cabinet assembly 200. The first inner rod 120 is movable to limit the upward swing amplitude of the first inner rod 120 and is located in the moisture barrier. Within the second movable groove 107 on the top side of the tidal cavity 102, a second spring 121 is provided inside the first rod sleeve 119, causing the end of the first inner rod 120 to abut against the corresponding side wall of the first insertion groove 108. The other end of the first rod sleeve 119 is hinged to the upper end of the corresponding second rod sleeve 122. A second inner rod 124 is slidably disposed inside the lower end of the second rod sleeve 122. A third spring 123 is provided inside the second rod sleeve 122, causing the second inner rod 124 to retract inward. The lower end of the second inner rod 124 is hinged to one end of a second V-rod 125 that is concave at the corner on the corresponding side. The other end of the second V-rod 125 is provided with a first gear 135 that mates with the inner wall of the corresponding side of the cable well. At the corner of the second V-rod 125, a positioning rod 126 is hinged to a vertically detachable and fixed reinforcing frame 117 within the moisture barrier 102. Two arc-shaped first racks 134 are symmetrically arranged on the positioning rod 126, distributed axially along the first gear 135. The first racks 134 are coaxial with the hinge pins of the positioning rod 126 and the second V-rod 125. The first racks 134 mesh with an eighth gear 142 located on the corresponding side of the second V-rod 125. 42 meshes with the seventh gear 141 located on the corresponding side of the second V-bar 125. The seventh gear 141 meshes with the sixth gear 140 located on the corresponding side of the second V-bar 125. The sixth gear 140 meshes with the fifth gear 139 located on the corresponding side of the second V-bar 125. The fifth gear 139 meshes with the fourth gear 138 located on the corresponding side of the second V-bar 125. The fourth gear 138 meshes with the third gear 137 located on the corresponding side of the second V-bar 125. The third gear 137 meshes with the second gear 136 located at the corresponding end of the pin shaft where the first gear 135 is located.

[0034] In a further embodiment, such as Figures 5-6As shown, the upper end of the positioning rod 126 is provided with a first retaining sleeve 127. The first retaining sleeve 127 is fixed to the second retaining sleeve 129 on the reinforcing frame 117 by a bolt 131 with a nut 133 threadedly connected to it. The inner wall of the first retaining sleeve 127 is provided with four first slots 128 distributed at 90-degree intervals in the circumference. The inner wall of the second retaining sleeve 129 is provided with second slots 130 that correspond one-to-one with the first slots 128. The bolt 131 is provided with four locking keys 132 that cooperate with the first slots 128 and the second slots 130.

[0035] In a further embodiment, such as Figures 12-16 As shown, the first baffle 304 is hinged to the lower side of the protrusion 302 on the top edge of the top shell 301. An elastic membrane 305 is connected between the adjacent sides of any two adjacent first baffles 304 to cover the gaps generated when they are unfolded. The branch joint 321 is set on the lower side of the transmission shell 311 through the bracket 320. A connecting plate 323 is provided on the lower side of the insulating sleeve 322 on the outer side of the branch joint 321. A first locking bolt 324 is threaded onto the connecting plate 323. The second baffle 307 is movable. The moving end is provided with a semi-circular groove 309. When the two second baffles 307 are closed, the semi-circular grooves 309 on the two second baffles 307 merge into a whole circular groove. A semi-circular hole 310 is provided on the straight edge of the semi-circular groove 309. When the two second baffles 307 are closed, the semi-circular holes 310 on the two semi-circular grooves 309 merge into a whole circular hole that mates with the first locking bolt 324. The second baffle 307 is provided with a second locking bolt 374 that is threadedly connected to the first side plate 204 or the second side plate 205.

[0036] In a further embodiment, such as Figure 12 As shown, the heat dissipation structure 313 includes a fixed column 314 fixed at the center of the second heat dissipation groove 312 inside the transmission housing 311 and a motor 319 fixed inside the transmission housing 311. A rotating sleeve 375 is rotatably mounted on the fixed column 314. The rotating sleeve 375 is provided with a plurality of heat dissipation blades 315 that can lift the heat inside the cabinet assembly 200 from bottom to top. A second pulley 318 is provided on the output shaft of the motor 319. The second pulley 318 is connected to the first pulley 316 mounted on the rotating sleeve 375 via a synchronous belt 317.

[0037] In a further embodiment, such as Figures 16-21As shown, the first connector 325 includes a first contact 339 connected to the corresponding end of the branch connector 321. A first protective sleeve 326 connected to an insulating sleeve 322 is provided on the outer side of the first contact 339. The end of the first protective sleeve 326 is provided with two third movable grooves 329 that are one-to-one opposite to the two sides of the first contact 339. A pressure rod 330 is hinged to the end wall of the third movable groove 329 via a hinge shaft perpendicular to the axis of the first protective sleeve 326. A first spiral spring 332 connecting the pressure rod 330 and the corresponding hinge shaft is provided to open the pressure rod 330. The inner side of the pressure rod 330 is provided with a spring that is one-to-one with the end of the first contact 339. The first contact 339 has an arc-shaped copper contact 333 that mates with the second connector 352. A first groove 340 is provided on the end face of the first contact 339. A trigger bar 343 is slidably disposed within the first groove 340 along the longitudinal direction of the first contact 339, and a fifth spring 341 is provided to cause the end of the trigger bar 343 to protrude from the opening of the first groove 340. A limiting sleeve 334, which mates with the pressure rod 330 and the second connector 352, is slidably disposed on the first protective sleeve 326. A fourth spring 338 is connected between the end of the limiting sleeve 334 and the first limiting ring 327 on the first protective sleeve to cause the limiting sleeve 334 to move in the direction of the pressure rod 330. Two second locking grooves 335 are provided on the upper part of the 334, spaced 180 degrees apart in the circumferential direction. An unlocking hook 336 is hinged to the end wall of the second locking groove 335 near the fourth spring 338 via a hinge shaft. A second spiral spring 337 connects the unlocking hook 336 to the corresponding hinge shaft to open the unlocking hook 336. Two insert rods 350 are provided at the end of the limiting sleeve 334, spaced 180 degrees apart in the circumferential direction. Two friction strips 351 are symmetrically arranged on both sides of the insert rods 350. A second limiting ring 328 is provided on the first protective sleeve 326 to limit the sliding amplitude of the limiting sleeve 334. The trigger strip 343 is connected to the first sliding... Two tenth gears 348 on both sides of the groove 340 mesh one-to-one. Both tenth gears 348 are coaxially connected to a ninth gear 347. The ninth gear 347 meshes with a locking rod 345 that slides laterally along the first contact 339 in the second groove 342 that passes through the first protective sleeve 326. The trigger rod 115 is provided with a fourth movable groove 344 to avoid interference with the locking rod 345. The end of the locking rod 345 is provided with a tooth angle that matches the tooth groove 349 on the inner wall of the limiting sleeve 334. The tooth angle prevents the limiting sleeve 334 from sliding towards the pressure rod 330 but does not prevent the limiting sleeve 334 from sliding back.

[0038] In a further embodiment, such as Figure 16-18 , Figure 21 , Figure 22As shown, the second connector 352 includes a second protective sleeve 353 and a third protective sleeve 365 connected to the second protective sleeve 353. The second protective sleeve 353 contains a second contact 364 that mates with the first contact 339, the copper contact piece 333, and the trigger bar 343. The outer side of the second protective sleeve 353 has two third sliding grooves 354 distributed circumferentially at 180 degrees and corresponding one-to-one with the second locking grooves 335, and two fifth movable grooves 355 corresponding to and communicating with the third sliding grooves 354. The fifth movable grooves 355 and the third protective sleeves 365 are located at both ends of the third sliding grooves 354. A pull rod 357 is slidably disposed within the third slide groove 354 along the longitudinal direction of the second contact 364, and a sixth spring 356 is provided to pull the corresponding pull rod 357 from the fifth movable groove 355 to the third protective sleeve 365. The end of the pull rod 357 is hinged via a hinge shaft to a second locking hook 359 that cooperates with the corresponding second locking groove 335 and the fifth movable groove 355. The end of the second locking hook 359 has an inclined surface that does not obstruct the movement of the limiting sleeve 334 onto the first protective sleeve 326. A third spiral spring 35 is connected between the second locking hook 359 and the corresponding hinge shaft to allow the second locking hook 359 to swing into the second locking groove 335. 8. The second protective sleeve 353 is provided with two eleventh gears 360 that mesh with the pull rods 357 one-to-one via two rotating shafts 361. Both ends of the rotating shafts 361 are provided with twelfth gears via one-way rings 362. The twelfth gears cooperate with the friction wheels 363 on the corresponding side friction strips 351 of the corresponding side insertion rods 350. The port of the third protective sleeve 365 is provided with two cutting wheels 368 that are distributed at 180-degree intervals around the circumference and cut the sheath of the inserted cable. The third protective sleeve 365 is provided with two sharp corners that separate the cable sheath cut by the cutting wheels 368 to both sides. The third protective sleeve 365 has 346 pieces. The inner wall of the third protective sleeve 365 is provided with two fourth sliding grooves 367 located at the ends of the sharp corner pieces 346. A copper clamping block 370 that presses the copper core of the cable slides radially along the third protective sleeve 365 in the fourth sliding groove 367. The clamping block 370 is connected to the second contact 364 through an elastic sheet 371. A screw 372 that is threadedly connected to the third protective sleeve 365 is rotatably connected to the clamping block 370. A torsion wheel 373 is provided at the outer end of the screw 372. The inner wall of the third protective sleeve 365 is provided with a receiving groove 366 for accommodating the sheath of the cable that is separated by the sharp corner pieces 346.

[0039] The cabinet top component 300 and base component 100 in this invention can be stored into a cube that is easy to stack and transport, while the cabinet body component 200 can also be folded and stored into a flat state that is easy to stack and transport. The storage of the cabinet top component 300, cabinet body component 200 and base component 100 greatly reduces the transportation space and helps to increase the number of items transported. In this invention, the base assembly 100, cabinet body assembly 200, and cabinet top assembly 300 are sequentially quick-assembled. The second locking structure 118 in the base assembly 100, used for locking with the cable well, is only triggered after the cabinet body assembly 200 is installed on the base assembly 100, thus fixing the base assembly 100 to the cable well. The first locking structure 111 on the base assembly 100 automatically locks the cabinet body assembly 200 and the base assembly 100 after they are connected. Because the first locking structure 111 is located inside the base assembly 100, it will not be damaged externally. As long as the cabinet body assembly 200 is not separated from the base assembly 100, the second locking structure 118 in the base assembly 100 will automatically further fix the base assembly 100 to the cable well when the base assembly 100 connected to the cabinet body assembly 200 is subjected to external force. The greater the external force received, the better the locking effect. The first locking structure 111 on the base assembly 100 can only be manually unlocked after the cabinet door 207 is opened, providing a strong protective effect. In this invention, the three ends of the branch connector 321 located in the cabinet top assembly 300, used for connecting cables, include a first connector and a second connector. These connectors enable quick-connect stripping of the cable to the second connector 352 and quick-connect installation to the first connector 325 and the second connector 352. After connection, the first connector 325 and the second connector 352 automatically lock and establish a pre-tension force to prevent loosening, ensuring a stable electrical connection between the first contact 339 in the first connector 325 and the second contact 364 in the second connector 352. Furthermore, the two copper contacts 333 of the first connector 325, after connection between the first connector 325 and the second connector 352, provide a double guarantee for the electrical connection between the first contact 339 and the second contact 364, preventing disconnection due to vibration or other reasons and ensuring a stable electrical connection between the first contact 339 and the second contact 364. The insertion and engagement of the first connector 325 and the second connector 352 in this invention can avoid the problem of contact scratches caused by insertion in traditional plug-in connectors.

[0040] The operation flow of this invention is as follows: In the initial state, the top assembly 300, the body assembly 200, and the base assembly 100 are separated from each other, such as... Figure 12As shown, the transmission housing 311 of the cabinet top assembly 300 is completely housed within the top shell 301. Two second baffles 307 are closed to the lower opening of the top shell 301 and are locked to the connecting plate 323 via first locking bolts 324. The top rod 306 is housed within the corresponding first heat dissipation groove 303, and four first baffles 304 close the corresponding first heat dissipation groove 303 on the top shell 301. Figure 9 As shown, the back panel 201, first side panel 204, second side panel 205, two third bend panels 206, and two cabinet doors 207 of the cabinet body assembly 200 are in a flat, folded storage state. The ends of the four first inner rods 120 in the base assembly 100 protrude from the bottom of the first insertion slot 108 from the corresponding second movable slot 107 and abut against the corresponding side wall of the first insertion slot 108. The positioning rods 126 in the two second locking structures 118 are not fixed to the reinforcing frame 117 by the bolts 131. The second rod sleeve 122, the second V rod 125, and the positioning rod 126 are tied to the first rod sleeve 119 by cable ties and stored in the moisture-proof cavity 102. The first connector 325 is connected to the corresponding second connector 352. The first contact 339 in the first connector 325 abuts against the second contact 364 in the second connector 352. Under the low pressure of the second contact 364 in the first connector 325, the trigger bar 343 in the first connector 325 is completely retracted into the first groove 340 at the end of the first contact 339. The fifth spring 341 is in a compressed state. The two pressure rods 330 in the first connector 325 are swung into the corresponding third movable grooves 329. The copper contact pieces 333 on the pressure rods 330 abut against the first contact 339 and the second contact 364 and are in a state of electrical connection with a large area. The limiting sleeve 334 in the first connector 325, under the action of the fourth spring 338, is fitted onto the mating point of the first protective sleeve 326 and the second protective sleeve 353, limiting the two pressure rods 330. The two second locking hooks 359 in the second connector 352 are inserted into the corresponding second locking grooves 335 on the limiting sleeve 334 and, under the pull of the sixth spring 356, pull the limiting sleeve 334, thus applying force to the abutment of the first contact 339 and the second contact 364, ensuring that the first contact 339 and the second contact 364 do not loosen. The friction strip 351 on the insertion rod 350 in the limiting sleeve 334 disengages from the corresponding friction wheel 363. No connecting cable is inserted into the third protective sleeve 365 of the second connector 352.

[0041] When installing this invention, first remove the cable ties on the second locking structure 118, and then use the engagement of the bolts 131 and nuts 133 to fix the four positioning rods 126 of the two second locking structures 118 vertically onto the reinforcing frame 117, so that the second V-rod 125 and the first gear 135 protrude downwards from the moisture barrier 102. Next, place the base assembly 100 at the cable well opening, so that the four first gears 135 are inserted into the cable well and face the corresponding sidewalls of the cable well.

[0042] Then, as Figure 8 The cabinet assembly 200 is unfolded, and four corner positioning strips 209 are inserted into the four corners of the unfolded cabinet assembly 200 to fix its unfolded state. Next, the bottom of the unfolded cabinet assembly 200 is inserted into the first insertion slot 108 on the base 101, so that the two cabinet doors 207 are opposite the movable opening 109. During the insertion of the cabinet assembly 200 into the first insertion slot 108, the lower end of the cabinet assembly 200 interacts with the inclined surfaces of the ends of the two first locking hooks 113 of the first locking structure 111, causing the two first locking hooks 113 to swing inward. The first locking hooks 113 drive the trigger rod 115 downward through the connecting rod 114, compressing the first spring 116. When the first locking groove 211 on the first side plate 204 and the second side plate 205 is opposite the first locking hook 113, the first locking hook 113 swings outward under the action of the first spring 116 and inserts into the first locking groove 211, locking the cabinet assembly 200. When the lower end of the cabinet assembly 200 is fully inserted into the first insertion slot 108, the ends of the four first inner rods 120 of the two second lock structures 118 are fully pressed into the second movable slot 107. The two first inner rods 120 in each second lock structure 118 drive the first gear 135 at the end of the corresponding second V rod 125 to abut against the side wall of the cable well through the corresponding first rod sleeve 119, second rod sleeve 122, and second inner rod 124.

[0043] Then, as Figures 13-14 As shown, the two second baffles 307 of the top assembly are unfolded, and the transmission shell 311 slides down to its limit. The transmission shell 311 drives the four first baffles 304 to tilt and open through the top rod 306 to form a rainproof edge and open the first heat dissipation groove 303. The two second baffles 307 are inserted into the cabinet assembly 200 from the top. The top shell 301 is placed on the top of the cabinet assembly 200 and inserted into the upper end of the four corner positioning strips 209 protruding from the top of the cabinet assembly 200 for positioning. Then, the two second baffles 307 are fixed to the first side plate 204 and the second side plate 205 by the second locking bolt 374.

[0044] When a cable needs to be connected, one end of the cable is inserted into the third protective sleeve 365 in the second connector 352. During the process of inserting the cable into the third protective sleeve 365, the two cutting wheels 368 first cut the outer sheath of the cable. As the cable continues to be inserted, the outer sheath cut by the cutting wheels 368 at the end of the cable is separated and unfolded into the receiving grooves 366 on both sides under the action of the two sharp corner blocks 346, exposing the copper core. Then, the two torsion wheels 373 are rotated respectively. The torsion wheels 373 drive the two clamping blocks 370 through the screw 372 to clamp the copper core and complete the electrical connection.

[0045] When it is necessary to disconnect the first connector 325, press the two unlocking hooks 336 to disengage the two second locking hooks 359 from the corresponding second locking grooves 335. Then, slide the limiting sleeve 334 to the second limiting ring 328 and compress the fourth spring 338. The friction strip 351 on the insertion rod 350 drives the friction wheel 363 to rotate. The one-way ring 362 does not function. The pull rod 357 pulls the second locking hooks 359 into the third sliding groove 354 under the action of the corresponding sixth spring 356. When the limiting sleeve 334 disengages from the two pressure rods 330, the two pressure rods 330 swing outward under the action of the corresponding first spiral spring 332 and drive the copper contact 333 to disengage from the first contact 339 and the second contact 364. Then, pull the second connector 352 away from the first connector 325, so that the first contact 339 and the second contact 364 are separated.

[0046] During the separation of the first contact 339 and the second contact 364, the trigger bar 343 slides out of the first groove 340 under the action of the fifth spring 341. The trigger bar 343 drives the locking rod 345 to insert into the toothed groove 349 on the inner wall of the limiting sleeve 334 through the tenth gear 348 and the ninth gear 347 to lock and limit the limiting sleeve 334.

[0047] When it is necessary to connect the first connector 325 and the second connector 352, the second contact 364 is mated with the first contact 339. The first contact 339 presses the trigger bar 343 into the first groove 340. The trigger bar 343 drives the locking rod 345 to disengage from the toothed groove 349 on the inner wall of the limiting sleeve 334 to unlock. Under the action of the fourth spring 338, the limiting sleeve 334 slides quickly towards the second protective sleeve 353 and fits onto the mating point of the first protective sleeve 326 and the second protective sleeve 353. Under the action of the limiting sleeve 334, the two pressure rods 330 are pressed into the corresponding third movable grooves 329. The pressure rods 330 press the corresponding copper contact pieces 333 against the first contact 339 and the second contact 364 and deform them. The copper contact pieces 333 make a large-area electrical connection with the first contact 339 and the second contact 364. During the movement toward the second protective sleeve 353, the friction strips 351 on the two inserts 350 at the end of the limiting sleeve 334 drive the corresponding friction wheels 363 to rotate a certain amplitude. The four friction wheels 363 respectively drive the second locking hook 359 to move toward the limiting sleeve 334 through the corresponding one-way ring 362, rotating shaft 361, eleventh gear 360, and pull rod 357. The second locking hook 359 moves toward the limiting sleeve 334 against the sixth spring 356. Under the action of the end face of the limiting sleeve 334 and the inclined surface of the end of the second locking hook 359, the second locking hook 359 swings into the fifth movable groove 355. When the second locking hook 359 is opposite to the second locking groove 335 on the limiting sleeve 334, it swings into the second locking groove 335 under the action of the corresponding third spiral spring 358. When the friction strips 351 separate from the friction wheels 363, the second locking hook 359 is pulled back under the action of the sixth spring 356 and pulls the limiting sleeve 334.

[0048] The copper contact 333 on the two pressure rods 330 is pressed against the first contact 339 and the second contact 364 only after the first contact 339 and the second contact 364 are mated, so as to avoid scratching the copper contact 333 when the first contact 339 and the second contact 364 are inserted.

[0049] The moisture barrier 102 on the lower side of the base 101 can effectively prevent moisture in the cable well from entering the cabinet assembly 200. The moisture vent 103 on the side wall of the moisture barrier 102 can discharge the moisture that enters the moisture barrier 102 to prevent the moisture barrier 102 from being corroded by moisture over a long period of time.

Claims

1. A quick-installation and quick-dismantling cable branch box for power distribution and transmission, characterized in that, The utility model relates to a cabinet, which comprises: a cabinet body assembly having a flat plate folding storage structure for facilitating transportation; a cabinet top assembly comprising a top shell with an open lower side and matched with the upper end of the cabinet body assembly, four sides of the top shell are hingedly connected with first flaps for opening and closing the third heat dissipation slots on the corresponding sides of the top shell and shielding rain, the inner side of the lower end of the top shell is symmetrically hingedly connected with two second flaps for opening and closing the lower end of the top shell, a transmission shell with a through second heat dissipation slot arranged at the upper and lower ends is vertically slid in the top shell, the four sides of the transmission shell are hingedly connected with top rods for closing and storing the second flaps when the transmission shell moves inward, the inner part and the lower side of the transmission shell are respectively provided with a heat dissipation structure and a branch joint for one-to-two power distribution and external insulation, the three end portions of the branch joint are respectively provided with first and second connectors for plugging and electrically connecting the end portions of the branch joint with cables, the first and second connectors have a structure for improving the stability of electrical connection, and the second connector further has a structure for automatically stripping the cables; a base assembly comprising a seat body, the upper and lower sides of the seat body are respectively provided with a first plugging slot matched with the lower end of the cabinet body assembly and a moisture-proof cavity opposite to a cable well, the moisture-proof cavity is provided with a first lock structure for automatically locking the cabinet body assembly and a pair of second lock structures for establishing a connection with the wall of the cable well when the cabinet body assembly is triggered and being automatically locked in the cable well when the branch box is moved by external force.

2. The quick-assembly and quick-disassembly cable branch box according to claim 1, characterized in that, A moisture discharge hole is formed in the side wall of the moisture-proof cavity, and a cable passing hole is formed in the top of the moisture-proof cavity.

3. The quick-assembly and quick-disassembly cable branch box according to claim 1, characterized in that, The cabinet body assembly comprises a back plate, the two side ends of the back plate are respectively fixedly provided with first and second corner plates, the side ends of the first and second corner plates are respectively hingedly connected with first and second side plates, the side ends of the first and second side plates are respectively hingedly connected with third corner plates, the side ends of the two third corner plates are respectively provided with cabinet doors matched with the movable grooves in front of the first plugging slots, two corner positioning strips matched with the second plugging slots at the corner of the front of the first plugging slots are arranged between the back plate and the first and second side plates for fixing the unfolded first and second side plates and the back plate, corner positioning strips matched with the second plugging slots at the corner of the front of the first plugging slots are arranged between the first and second side plates and the corresponding third corner plates for fixing the unfolded third corner plates, and the inner sides of the corner positioning strips are respectively provided with two dovetail sliding strips matched with the dovetail grooves on the outer sides of the back plate, the first and second side plates or the third corner plates.

4. The quick-assembly and quick-disassembly cable branch box according to claim 1, characterized in that, The first lock structure comprises two first V-shaped rods symmetrically arranged on both sides of the moisture-proof chamber, the corners of the first V-shaped rods are hinged to the side walls of the moisture-proof chamber, the upper ends of the first V-shaped rods are movably arranged in the first movable slots on the top of the moisture-proof chamber, the upper ends of the first V-shaped rods are provided with first hooks matched with the first lock slots on the inner sides of the lower ends of the first side plates or the second side plates, the end portions of the first hooks are provided with inclined surfaces enabling the upper ends of the first V-shaped rods to swing inwards by matching with the lower ends of the first side plates or the second side plates, a connecting rod is hinged between the lower end of the first V-shaped rod and the lower end of a trigger rod vertically sliding in a first guide sleeve on the center of the top of the moisture-proof chamber, and the trigger rod is provided with a first spring enabling the trigger rod to move upwards.

5. The quick-mounting and quick-removing cable branch box according to claim 1, characterized in that, The second lock structure comprises two first rod sleeves distributed left and right, two second rod sleeves connected with the first rod sleeves one by one, and two second V-shaped rods distributed left and right, the first rod sleeves are hinged to the top of the moisture-proof chamber through horizontal hinge pins parallel to the corresponding side walls of the first plug-in slots, one end of the first rod sleeve is slidably provided with a first inner rod with an end matched with the corresponding side walls of the first plug-in slots and the lower end of the cabinet body assembly, the first inner rod is movably arranged in a second movable slot for limiting the swing range of the first inner rod and located on the side of the top of the moisture-proof chamber, the first rod sleeve is provided with a second spring enabling the end of the first inner rod to abut against the corresponding side wall of the first plug-in slot, the other end of the first rod sleeve is hinged to the upper end of the corresponding second rod sleeve, the lower end of the second rod sleeve is slidably provided with a second inner rod, the second rod sleeve is provided with a third spring enabling the second inner rod to retract inwards, the lower end of the second inner rod is hinged to one end of a second V-shaped rod with a concave corner on the corresponding side, the other end of the second V-shaped rod is provided with a first gear matched with the inner wall of the corresponding side of the cable well, the corner of the second V-shaped rod is hinged with a positioning rod in a vertical and detachable fixed state on the reinforcing frame in the moisture-proof chamber, the positioning rod is symmetrically provided with two circular-arc first racks distributed along the axial direction of the first gear, the first racks have the same center axis with the hinge pins of the positioning rod and the second V-shaped rod, the first racks are engaged with an eighth gear provided on the corresponding side of the second V-shaped rod, the eighth gear is engaged with a seventh gear provided on the corresponding side of the second V-shaped rod, the seventh gear is engaged with a sixth gear provided on the corresponding side of the second V-shaped rod, the sixth gear is engaged with a fifth gear provided on the corresponding side of the second V-shaped rod, the fifth gear is engaged with a fourth gear provided on the corresponding side of the second V-shaped rod, the fourth gear is engaged with a third gear provided on the corresponding side of the second V-shaped rod, and the third gear is engaged with a second gear provided on the corresponding end of the pin shaft of the first gear.

6. The quick-mounting and quick-removing cable branch box according to claim 5, characterized in that, The upper end of the positioning rod is provided with a first clamping sleeve, the first clamping sleeve is fixed to a second clamping sleeve on the reinforcing frame through a plug bolt with a nut, the inner wall of the first clamping sleeve is provided with four first clamping slots distributed at a circumferential interval of 90 degrees, the inner wall of the second clamping sleeve is provided with second clamping slots corresponding to the first clamping slots one by one, and the plug bolt is provided with four clamping keys matched with the first clamping slots and the second clamping slots.

7. The quick-mounting and quick-removing cable branch box according to claim 1, characterized in that, The first baffle is hinged to the underside of the eaves on the top edge of the top shell. An elastic membrane is connected between the adjacent sides of any two adjacent first baffles to block the gaps generated when they are unfolded. The branch joint is set on the underside of the transmission shell by a bracket. A connecting plate is set on the underside of the insulating sleeve on the outside of the branch joint. A first locking bolt is threaded onto the connecting plate. The movable end of the second baffle is provided with a semi-circular groove. When the two second baffles are closed, the semi-circular grooves on the two second baffles merge into a full circular groove. A semi-circular hole is provided on the straight edge of the semi-circular groove. When the two semi-circular holes on the two semi-circular grooves are closed, they merge into a perfect circular hole that mates with the first locking bolt. A second locking bolt that mates with the first side plate or the second side plate is provided on the second baffle.

8. The quick-assembly and quick-disassembly cable branch box according to claim 1, characterized in that, The heat dissipation structure includes a fixed column fixed at the center of the second heat dissipation groove inside the transmission housing and a motor fixed inside the transmission housing. A rotating sleeve is rotatably mounted on the fixed column. The rotating sleeve is provided with a number of heat dissipation blades that can raise the heat inside the cabinet assembly from bottom to top. A second pulley is provided on the output shaft of the motor. The second pulley is connected to a first pulley mounted on the rotating sleeve via a synchronous belt.

9. The quick-mounting and quick-removing cable branch box according to claim 1, characterized in that, The first connector includes a first contact connected to the corresponding end of the branch connector. A first protective sleeve connected to an insulating sleeve is provided on the outer side of the first contact. Two third movable grooves, one on each side of the first contact, are provided at the end of the first protective sleeve. A pressure rod is hinged to the end wall of each third movable groove via a hinge shaft perpendicular to the axis of the first protective sleeve. A first spiral spring connecting the pressure rod to the corresponding hinge shaft opens the pressure rod. An arc-shaped copper contact piece mates with the corresponding side of the first contact and the second connector is provided on the inner side of the pressure rod. A first sliding groove is provided on the end face of the first contact. A trigger bar is slidably arranged along the longitudinal direction of the first contact within the first sliding groove, and a fifth spring is provided to make the end of the trigger bar protrude from the opening of the first sliding groove. A limiting sleeve slidably arranged on the first protective sleeve, mates with the pressure rod and the second connector. A fourth spring connecting the end of the limiting sleeve to a first limiting ring on the first protective sleeve moves the limiting sleeve in the direction of the pressure rod. The upper opening of the limiting sleeve... The device has two second locking grooves spaced 180 degrees apart circumferentially. An unlocking hook is hinged to the end wall of the second locking groove near the fourth spring via a hinge shaft. A second spiral spring connects the unlocking hook to the corresponding hinge shaft to open the unlocking hook. The end of the limiting sleeve has two insert rods spaced 180 degrees apart circumferentially. Two friction strips are symmetrically arranged on both sides of the insert rods. The first protective sleeve has a second limiting ring that limits the sliding range of the limiting sleeve. The two sides of the trigger strip mesh one-to-one with two tenth gears located on both sides of the first sliding groove. Both tenth gears are coaxially connected to a ninth gear. The ninth gear meshes with a locking rod that slides laterally along the first contact and penetrates the second sliding groove of the first protective sleeve. The trigger rod has a fourth movable groove to prevent interference with the locking rod. The end of the locking rod has a tooth angle that engages with a tooth groove on the inner wall of the limiting sleeve. The tooth angle prevents the limiting sleeve from sliding towards the pressure rod but does not prevent the limiting sleeve from sliding back.

10. The quick-mounting and quick-removing cable branch box according to claim 9, characterized in that, The second connector includes a second protective sleeve and a third protective sleeve connected to the second protective sleeve. The second protective sleeve contains a second contact that mates with a first contact, a copper contact plate, and a trigger bar. Two third sliding grooves, distributed 180 degrees circumferentially and corresponding to the second locking grooves, and two fifth movable grooves, corresponding to and communicating with the third sliding grooves, are formed on the outer side of the second protective sleeve. The fifth movable grooves and the third protective sleeve are located at both ends of the third sliding grooves. A pull rod is slidably arranged longitudinally along the second contact within the third sliding groove, and a sixth spring is provided to pull the corresponding pull rod from the fifth movable groove towards the third protective sleeve. The end of the pull rod is hinged via a hinge shaft to a second locking hook that mates with the corresponding second locking groove and the fifth movable groove. The end of the second locking hook has an inclined surface that does not obstruct the movement of the limiting sleeve towards the first protective sleeve. A third spiral spring connects the second locking hook to the corresponding hinge shaft, allowing the second locking hook to swing into the second locking groove. The protective sleeve has two eleventh gears that mesh with the pull rods via two rotating shafts. Each end of the rotating shaft has a twelfth gear via a one-way ring. The twelfth gear engages with a friction wheel on the corresponding side friction strip of the side insertion rod. The port of the third protective sleeve has two cutting wheels spaced 180 degrees circumferentially to cut the sheath of the inserted cable. The third protective sleeve also has two sharp-angled blocks that separate the cable sheath cut by the cutting wheels to both sides. The inner wall of the third protective sleeve has two fourth sliding grooves located at the ends of the sharp-angled blocks. A copper clamping block that presses the cable core slides radially within the fourth sliding groove along the third protective sleeve. The clamping block is connected to the second contact via an elastic sheet. A screw threaded to the third protective sleeve is rotatably connected to the clamping block. A torsion wheel is located at the outer end of the screw. The inner wall of the third protective sleeve has a receiving groove to accommodate the sheath separated by the sharp-angled blocks on the cable.

Images