CN116417963A

CN116417963A - Buried cable branch box convenient to lift

Info

Publication number: CN116417963A
Application number: CN202310534178.3A
Authority: CN
Inventors: 秦永富; 华一峰; 吴永明
Original assignee: Hangzhou Huahong Communications Equipment Co ltd
Current assignee: Hangzhou Huahong Communications Equipment Co ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-07-11

Abstract

The invention discloses a buried cable branch box convenient to lift, which comprises an ejecting mechanism, a lifting mechanism, a cable winding mechanism and a buckling mechanism; the ejection mechanism includes: the device comprises a back plate A, a base, a slide bar A, side plates, a support bar A, a support bar B, a tension spring A, a bottom plate, a slide bar B, a back plate B and a connecting block; the two bases are respectively and fixedly connected with the lower parts of the two sides of the backboard A; the base is fixedly arranged in the ground; the two sliding rods A are respectively and fixedly connected with the inner sides of the two bases; two side plates are arranged, and both the side plates are slidably arranged on the slide bar A; the two side plates are connected with the bottom plate through a supporting rod; the cable branch box can be lowered below the ground through the lifting mechanism, so that the ground space is greatly saved, and the cable branch box can be lifted to the ground through the ejection mechanism and the lifting mechanism when the cable branch box needs to be lifted; and the inspection and maintenance are convenient.

Description

Buried cable branch box convenient to lift

Technical Field

The invention relates to the technical field of power engineering, in particular to a buried cable branch box convenient to lift.

Background

There are a large number of cables in the power line, and as the number of cables increases, which makes it a problem how to connect the cables more effectively. In general, if the distribution of the independent load cables with small capacity is concentrated, the cable branching box can be used to make multi-branch connection to the cables, so that the connection of the cables is more convenient and simple, and the cables can be effectively protected through the cable branching box.

In the prior art, the patent number is 201810027632.5, and the cable branch box body comprises a box body, a supporting plate, an air flow generating part and an air flow diffusion device. The box body is provided with a containing cavity. The supporting plate partitions the accommodating cavity into an air flow conveying space and a cable placing space along the direction from the bottom wall to the top wall. The airflow generating part is configured to reciprocate in a direction from the second end to the first end. The airflow diffusing device is movably arranged on the supporting plate, and the plurality of airflow diffusing holes face the airflow conveying space and the cable placing space respectively. When the airflow diffusing device reciprocates, external air is extracted through the air inlet hole, so that airflow enters the airflow conveying space and acts on the airflow diffusing device, and the airflow diffusing device moves on the supporting plate. The cable branch box is used for carrying out multi-branch connection on the cable, and the cable can be in a dry environment through the cable branch box, so that the normal operation of the cable is ensured.

The existing cable branch box has the function of drying the inner space, but occupies a large amount of space on the ground, so that the space layout of other ground projects is influenced.

Disclosure of Invention

In order to solve the problems, the invention provides the buried cable branch box which is convenient to lift, the device can lower the cable branch box below the ground through the lifting mechanism, so that the ground space is greatly saved, and the cable branch box can be lifted to the ground through the ejection mechanism and the lifting mechanism when the cable branch box needs to be lifted; and the inspection and maintenance are convenient.

The technical scheme adopted by the invention is as follows: a buried cable branch box convenient to lift comprises an ejecting mechanism, a lifting mechanism, a cable winding mechanism and a buckling mechanism;

the ejection mechanism includes: the device comprises a back plate A, a base, a slide bar A, side plates, a support bar A, a support bar B, a tension spring A, a bottom plate, a slide bar B, a back plate B and a connecting block;

the two bases are respectively and fixedly connected with the lower parts of the two sides of the backboard A; the base is fixedly arranged in the ground; the two sliding rods A are respectively and fixedly connected with the inner sides of the two bases; two side plates are arranged, and both the side plates are slidably arranged on the slide bar A; the two side plates are connected with the bottom plate through a supporting rod; the tension springs A are arranged in the two side plates;

the support rod comprises a support rod A and a support rod B; the middle parts of the support rods A and B are rotationally connected; the lower end of the supporting rod A is rotatably arranged on the left side plate; the upper end of the supporting rod A is rotatably arranged on the bottom plate; the lower end of the supporting rod B is rotatably arranged on the side plate on the right side; the upper end of the supporting rod B is rotatably arranged on the bottom plate; the rear end of the bottom plate is fixedly connected with two connecting blocks, and the two connecting blocks are respectively connected with the sliding chute on the back plate A in a sliding manner; two sliding rods B are fixedly arranged at the front end of the upper surface of the bottom plate, and a back plate B is fixedly arranged at the rear end of the upper surface of the bottom plate;

the lifting mechanism comprises a box body and a sliding rail; the sliding rails at the two ends of the back of the box body are slidably arranged on the sliding grooves at the two ends of the backboard B; a boss is arranged at the lower end of the front surface of the box body, and a round hole on the boss is in sliding connection with the slide rod B; the cable winding mechanism is arranged in the box body; the buckling mechanism is installed between the box body and the bottom plate in a penetrating mode.

Preferably, the lifting mechanism further comprises: the lifting device comprises a bracket A, a long plate, a handle and a lifting unit;

the bracket A is fixedly arranged on the upper end surface of the bottom plate; the long plate is slidably mounted in the sliding groove of the support A, teeth are arranged on the sliding groove of the support A, teeth are also arranged on two sides of the protrusion at the lower end of the long plate, and the teeth on the protrusion of the support A are meshed with the teeth on the sliding groove of the long plate; the handle is fixedly arranged at the top end of the long plate; the lifting unit is used for lifting the box body.

Preferably, the lifting unit comprises a crank, a rocker, a roller A, a belt, a connecting rod A, a connecting rod B, a sliding block A, a sliding block B, a roller B, a gear B and a rack; one end of the crank is rotatably arranged in the groove on the rocker, the shaft of the rocker is rotatably arranged in a round hole on the upper part of the long plate, the roller A is fixedly connected with the shaft of the rocker, and meanwhile, the roller A is connected with small rollers and the roller B which are arranged on the sliding block A and the sliding block B through a belt; the transverse sliding groove on the backboard B is in sliding connection with the sliding block A and the sliding block B; the round hole on the backboard B is rotationally connected with the shaft of the roller B; the upper ends of the connecting rod A and the connecting rod B are both in rotational connection with the shaft of the rocker, the lower end of the connecting rod A is in rotational connection with the short shaft on the sliding block B, and the lower end of the connecting rod B is in rotational connection with the short shaft on the sliding block A; the gear B is fixedly connected with the shaft of the roller B, and simultaneously, the gear B is meshed with the rack; the rack is fixedly connected with the back of the box body.

Preferably, the device also comprises a limiting mechanism, wherein the limiting mechanism comprises a bidirectional pawl, a tension spring B and a gear A; the gear A is fixedly arranged on the shaft of the rocker; a round hole is formed in the middle of the bidirectional pawl, the round hole is rotationally connected with a short shaft on the long plate, and the lower end of the tension spring B is fixedly connected with a short rod arranged at the lower end of the bidirectional pawl; the upper end of the tension spring B is fixedly connected with a short shaft on the long plate, which is positioned above the bidirectional pawl; the gear A is matched with the bidirectional pawl.

Preferably, the cable winding mechanism includes: bracket B, pulley A and pulley B;

the two brackets B are respectively and fixedly arranged on the two bases, and the pulleys A are rotatably arranged on the brackets B; a group of pulleys B are arranged on two sides of the box body; each group of pulleys B comprises two pulleys B; the cable passes between the two pulleys B.

Preferably, the cable winding mechanism further comprises: the cable branch module comprises a bracket C, a reel A, a cable branch module, a bracket D and a reel B;

the two brackets C are respectively and fixedly arranged above the inside of the box body, and the reel A is rotatably arranged on the rotating shaft of the brackets C; the cable branch module is fixedly arranged on the rear end face of the inner wall of the box body; the two brackets D are fixedly arranged in the box body; the bracket D is positioned below the bracket C; a reel B is rotatably arranged on the bracket D; the main cable is wound on the reel A and is communicated with the cable branch module; the branch cable is wound on the reel B and is communicated with the cable branch module.

Preferably, the reel a and the reel B are provided with conductive mechanisms; the conductive mechanism includes: a conductive ring A and a conductive ring B;

the electric conduction ring A is fixedly arranged in the reel A, the electric conduction ring A is communicated with the electric conduction ring B, the electric conduction ring A is connected with the main cable, the electric conduction ring B is arranged in a circular hole of the support C, which is pivoted, of one end of the support C, the electric conduction ring B is fixedly connected with one end of the excessive cable, and the other end of the excessive cable is connected with the cable branch module.

Preferably, the reel A and the reel B are also provided with tensioning mechanisms; the tensioning mechanism comprises a coil spring; one end of the coil spring is fixedly connected with the reel A, and the other end of the coil spring is fixedly connected with the rotating shaft on the bracket C.

Preferably, the fastening mechanism includes: knob, telescopic link, sleeve, diaphragm and draw-in groove;

the knob is fixedly connected with the top end of the telescopic rod, the upper end of the telescopic rod is rotatably arranged in a round hole on the upper surface of the box body, the telescopic rod is slidably arranged in the sleeve, the sleeve penetrates through the round hole on the lower surface of the box body to be rotatably connected with the round hole on the bottom plate, and the lower end of the sleeve is buckled with the clamping groove; the transverse plate is fixedly connected with the inner sides of the two bases, and a clamping groove is fixedly arranged in the middle of the transverse plate.

Preferably, the sliding rod a is provided with a round table, and the round table is used for preventing the side plate from sliding.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a buried cable branch box convenient to lift, which can be lowered below the ground through a lifting mechanism, so that the ground space is greatly saved, and the cable branch box can be lifted to the ground through an ejection mechanism and the lifting mechanism when the cable branch box needs to be lifted; and the inspection and maintenance are convenient.

Compared with an automatic lifting mechanism, the box body can slowly rise by arranging the lifting mechanism to drive the rocker to rotate, and has the advantage of observing the condition of an internal cable at any time, and the box body can stop at any time if the cable is damaged, a wire is clamped or electricity is leaked, and the like, so that danger is prevented.

3. According to the invention, the box body can be ejected out of the ground by arranging the ejecting mechanism, and the manual operation crank is leaked, so that the lifting mechanism can lift the box body conveniently.

4. According to the invention, the gear A is enabled to rotate unidirectionally by arranging the bidirectional pawl, when the left side of the upper end of the bidirectional pawl is meshed with the rocker, the gear A can only rotate clockwise, and when the right side of the upper end of the bidirectional pawl is meshed with the rocker, the gear A can only rotate anticlockwise.

5. The lower end of the sleeve is matched with the clamping groove; when not in use, the whole equipment can be in a locking state through the buckling of the lower end of the sleeve and the clamping groove.

Drawings

FIG. 1 is a schematic view of the entire structure of the present invention in an underground state.

Fig. 2 is a schematic view showing the overall structure of the present invention in a state above the ground.

Fig. 3 is a schematic structural view of a lifting mechanism according to the present invention.

Fig. 4 is a schematic structural view of the ejecting mechanism of the present invention.

Fig. 5 is a schematic structural diagram of a back plate B according to the present invention.

Fig. 6 is a schematic view of the structure of the support rod a according to the present invention.

Fig. 7 is a schematic structural diagram of a back plate a according to the present invention.

Fig. 8 is a schematic view of the structure of a bracket a according to the present invention.

Fig. 9 is a schematic diagram of the structure of the case of the present invention.

Fig. 10 is an enlarged view of a portion of the present invention at a.

Fig. 11 is a schematic view of the structure of the connecting rod B according to the present invention.

Fig. 12 is a schematic view of the rack structure of the present invention.

Fig. 13 is a schematic view of the structure of the bracket B of the present invention.

Fig. 14 is a schematic view of the structure of the bracket C of the present invention.

Fig. 15 is a schematic view of the structure of the bracket D according to the present invention.

Fig. 16 is a schematic view of the reel a of the present invention.

Fig. 17 is a schematic view of a cable branching module according to the present invention.

Fig. 18 is a schematic structural view of the fastening mechanism of the present invention.

Reference numerals and signs

1-an ejector mechanism; 2-a lifting mechanism; 3-a cable winding mechanism; 4-a snap-fit mechanism; 101-a back plate a; 102-a base; 103-slide bar A; 104-side plates; 105-supporting rod A; 106-supporting the rod B; 107-a tension spring A; 108-a bottom plate; 109-slide bar B; 110-a back plate B; 111-connecting blocks; 201-a box body; 202-a slide rail; 203-scaffold a; 204-long plate; 205-a bi-directional pawl; 206-tension spring B; 207-crank; 208-rocker; 209-gear a; 210-handle; 211-roller a; 212-a belt; 213-link a; 214-connecting rod B; 215-slider a; 216-slider B; 217-roller B; 218-gear B; 219-rack; 301-a bracket B; 302-pulley a; 303-pulley B; 304-a bracket C; 305-reel a; 306-a cable branching module; 307-stent D; 308-reel B; 309-coil springs; 310-conducting ring A; 311-conductive ring B; 401-a knob; 402-telescoping rod; 403-sleeve; 404-a cross plate; 405-clamping groove.

Detailed Description

The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., are based on directions or positional relationships shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention.

It should be noted that in this document, relational terms such as "… … a" and "… … B" or "… … a" and "… … B" and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities or operations.

1-18, a buried cable branch box convenient to lift comprises an ejection mechanism 1, a lifting mechanism 2, a cable winding mechanism 3 and a buckling mechanism 4;

the ejection mechanism 1 includes: back plate a101, base 102, slide bar a103 and side plate 104, support bar a105, support bar B106, tension spring a107, bottom plate 108, slide bar B109, back plate B110 and connection block 111;

two bases 102 are arranged, and the two bases 102 are fixedly connected with the lower parts of the two sides of the backboard A101 respectively; the base 102 is fixedly installed in the ground; two slide bars A103 are arranged, and two ends of the slide bar A103 are fixedly connected with the inner sides of the two bases 102 respectively; two side plates 104 are arranged, and the two side plates 104 are both slidably arranged on the slide rod A103; the two side plates 104 are connected with the bottom plate 108 through struts; tension springs A107 are arranged in the two side plates 104;

the strut comprises a strut A105 and a strut B106; the middle parts of the support rod A105 and the support rod B106 are rotationally connected; the lower end of the supporting rod A105 is rotatably arranged on the left side plate 104; the upper end of the supporting rod A105 is rotatably arranged on the bottom plate 108; the lower end of the supporting rod B106 is rotatably arranged on the side plate 104 on the right side; the upper end of the support rod B106 is rotatably arranged on the bottom plate 108; the rear end of the bottom plate 108 is fixedly connected with two connecting blocks 111, and the two connecting blocks 111 are respectively and slidably connected with a chute on the back plate A101; two sliding rods B109 are fixedly arranged at the front end of the upper surface of the bottom plate 108, and a back plate B110 is fixedly arranged at the rear end of the upper surface of the bottom plate 108; preferably, the sliding rod a103 is provided with a round table, which is used for preventing the side plate 104 from sliding.

The lifting mechanism 2 comprises a box 201 and a sliding rail 202; the sliding rails 202 at the two ends of the back of the box 201 are slidably arranged on the sliding grooves at the two ends of the backboard B110; a boss is arranged at the lower end of the front surface of the box body 201, and a round hole on the boss is in sliding connection with the slide rod B109; the cable winding mechanism 3 is installed in the box 201; the latch mechanism 4 is interposed between the case 201 and the bottom plate 108.

The ejector mechanism 1 is used for ejecting the bottom plate 108, namely ejecting the box body 201, so that the handle 210 leaks out of the ground, further manual operation is convenient, the lifting mechanism 2 is used for finally driving the box body 201 to lift by manually rocking the rocking rod 208, the cable winding mechanism 3 is used for synchronously extending or shortening the cable when the box body 201 is lifted, the internal cable is prevented from being disordered, and the buckle mechanism 4 is used for locking when the equipment is not used or loosening when the equipment is started to be used;

specifically, when the pop-up mechanism 1 works, under the action of the tension spring a107, the side plate 104 is driven to slide towards the middle, so as to squeeze the support rod a105 and the support rod B106, and thus the bottom plate 108 is driven to rise, and as the round table arranged on the slide rod a103 makes the middle thicker, the side plate 104 is forced to stop after sliding for a certain distance, so that the bottom plate 108 stops rising, and the support a203 on the bottom plate 108 correspondingly rises and stops, so that the support a203 leaks out of the ground, namely the long plate 204 leaks out of the ground.

In an alternative embodiment of the present invention, as shown in fig. 8, 9, 10, 11, and 12, the lifting mechanism 2 further includes: a bracket a203, a long plate 204, a handle 210 and a lifting unit;

the bracket A203 is fixedly arranged on the upper end surface of the bottom plate 108; the long plate 204 is slidably arranged in the sliding groove of the support A203, teeth are arranged on the sliding groove of the support A203, teeth are also arranged on two sides of the convex part at the lower end of the long plate 204, and the teeth on the convex part of the support A203 are meshed with the teeth on the sliding groove of the long plate 204; a handle 210 is fixedly mounted at the top end of the long plate 204; the lifting unit is used to lift and lower the case 201. The long plate 204 is driven to slide in the support A203 by using a certain external force, and the teeth on the support A203 and the long plate 204 can be corrugated teeth; the engagement between the corrugated teeth upon loss of external force may allow for relative rest between the bracket a203 and the long plate 204;

preferably, the lifting unit comprises a crank 207, a rocker 208, a roller A211, a belt 212, a connecting rod A213, a connecting rod B214, a sliding block A215, a sliding block B216, a roller B217, a gear B218 and a rack 219; one end of a crank 207 is rotatably arranged in a groove on a rocker 208, a shaft of the rocker 208 is rotatably arranged in a round hole on the upper part of the long plate 204, a roller A211 is fixedly connected with the shaft of the rocker 208, and meanwhile, the roller A211 is connected with small rollers arranged on a sliding block A215 and a sliding block B216 and a roller B217 through a belt 212; the transverse sliding groove on the back plate B110 is in sliding connection with the sliding block A215 and the sliding block B216; the round hole on the backboard B110 is rotationally connected with the shaft of the roller B217; the upper ends of the connecting rod A213 and the connecting rod B214 are both rotationally connected with the shaft of the rocker 208, the lower end of the connecting rod A213 is rotationally connected with the short shaft on the sliding block B216, and the lower end of the connecting rod B214 is rotationally connected with the short shaft on the sliding block A215; gear B218 is fixedly connected with the shaft of roller B217, while gear B218 is meshed with rack 219; the rack 219 is fixedly connected to the rear surface of the case 201. Preferably, the device also comprises a limiting mechanism, wherein the limiting mechanism comprises a bidirectional pawl 205, a tension spring B206 and a gear A209; gear a209 is fixedly mounted on the shaft of rocker 208; a round hole is arranged in the middle of the bidirectional pawl 205 and is rotationally connected with a short shaft on the long plate 204, and the lower end of the tension spring B206 is fixedly connected with a short rod arranged on the lower end of the bidirectional pawl 205; the upper end of the tension spring B206 is fixedly connected with a short shaft of the long plate 204, which is positioned above the bidirectional pawl 205; gear a209 mates with bi-directional pawl 205. Tension spring B206 generates a pulling force, and the action of tension spring B206 is to provide a deflection restraining force for bi-directional pawl 205, so that bi-directional pawl 205 always deflects to one side, and when the lower end of bi-directional pawl 205 is manually shifted to deflect bi-directional pawl 205 to the other side, tension spring B206 provides a restraining force to the other side; the bidirectional pawl 205 has the function of enabling the gear A209 to rotate in one direction, when the left side of the upper end of the bidirectional pawl 205 is meshed with the rocker 208, the gear A209 can only rotate clockwise, and when the right side of the upper end of the bidirectional pawl 205 is meshed with the rocker 208, the gear A209 can only rotate anticlockwise; a handle 210 is fixedly mounted at the top end of the long plate 204, the handle 210 serving to manually lift the long plate 204.

Specifically, when lifting, the handle 210 is manually pulled up until stopping at a proper position of a human body, at the moment, the roller A211 is also lifted, as the roller B217 is motionless, the lower ends of the connecting rod A213 and the connecting rod B214 are close to the middle by being extruded by the belt 212, then the crank 207 is unfolded, the crank 207 is rocked clockwise, the roller A211 is driven to rotate, the roller B217 drives the gear B218 to rotate, the gear B218 drives the rack 219 to slide upwards, the box 201 is driven to slide upwards, and until the height suitable for maintenance is reached, one side of the upper end of the bidirectional pawl 205 clamps the gear A209 when the rocker 208 is rocked, so that the gear A209 cannot reversely rotate, and the box 201 is ensured not to descend after being lifted;

in an alternative embodiment of the present invention, as shown in fig. 13, the cable winding mechanism 3 includes: bracket B301, pulley a302, and pulley B303;

two brackets B301 are arranged, the two brackets B301 are respectively and fixedly arranged on the two bases 102, and pulleys A302 are rotatably arranged on the brackets B301; a group of pulleys B303 are arranged on both sides of the box 201; each set of pulleys B303 comprises two pulleys B303; the cable passes between two pulleys B303, pulley a302 and pulley B303 function to protect the cable from damage when the cable changes position.

In an alternative embodiment of the present invention, as shown in fig. 14 and 15, the cable winding mechanism 3 further includes: bracket C304, reel a305, cable branching module 306, bracket D307, and reel B308;

two brackets C304 are arranged, the two brackets C304 are respectively and fixedly arranged above the inside of the box 201, and a reel A305 is rotatably arranged on the rotating shaft of the brackets C304; the cable branch module 306 is fixedly arranged on the rear end face of the inner wall of the box 201; two brackets D307 are fixedly installed in the case 201; bracket D307 is located below bracket C304; a reel B308 is rotatably mounted on the bracket D307; the main cable is wound on reel a305 and communicates with cable branching module 306; the branch cable is wound on reel B308 and communicates with the cable branch module 306, wherein the main cable is wound on reel a305 and communicates with excess cable on the cable branch module 306 through the conductive mechanism; the other side of the cable branching module 306 is provided with a branching cable; a copper plate is arranged in the cable branching module 306; the copper plate is connected with the transition cable and the branch cable; the two branch cables in front of the cable branching module 306 are wound around the two reels B308, and the extended branch cables pass through the circular holes in the bottom surface of the box 201 and the circular holes in the bottom plate 108, so that the branch cables are pulled out for use.

In an alternative embodiment of the present invention, as shown in fig. 16 and 17, a conductive mechanism is provided on reel a305 and reel B308; the conductive mechanism includes: conductive loop a310 and conductive loop B311; wherein the conductive mechanisms on reel a305 and reel B308 are identical in structure.

Conductive ring A310 fixed mounting is in reel A305's inside, and conductive ring A310 communicates with conductive ring B311, and main cable is connected to conductive ring A310, and conductive ring B311 installs in the round hole of the pivot of support C304 one end, and conductive ring B311 and the one end fixed connection of excessive cable, the other end of excessive cable and the connection of cable branch module 306. Wherein the conductive ring A310 can also adopt a conductive slip ring; so that the main cable wound on the reel A305 is electrified with the conductive ring B311 when rotating, and the transmission of power is ensured;

preferably, reel a305 and reel B308 are also provided with tensioning mechanisms; the tensioning mechanism includes a coil spring 309; one end of the coil spring 309 is fixedly connected with the reel A305, the other end of the coil spring 309 is fixedly connected with the rotating shaft on the bracket C304, and the coil spring 309 is used for providing a pretightening force for the rotation of the reel A305, so that the wound cable can be freely wound and unwound; so that the main cable wound on the reel a305 is energized with the conductive ring B311 while rotating, ensuring the transmission of electric power.

Specifically, while the box 201 is lifted, the cable in the box 201 is stretched, so as to drive the reel a305 to rotate, and the cable wound on the reel a305 is released, so that the communication of the cable is ensured when the box 201 is lifted to the ground;

in an alternative embodiment of the present invention, as shown in fig. 18, the snap mechanism 4 includes: the knob 401 of the knob 401, the telescopic rod 402, the sleeve 403, the transverse plate 404 and the clamping groove 405 are fixedly connected with the top end of the telescopic rod 402, the upper end of the telescopic rod 402 is rotatably arranged in a round hole on the upper surface of the box 201, the telescopic rod 402 is slidably arranged in the sleeve 403, the sleeve 403 penetrates through a round hole on the lower surface of the box 201 to be rotatably connected with a round hole on the bottom plate 108, and the lower end of the sleeve 403 is buckled with the clamping groove 405; the transverse plate 404 is fixedly connected with the inner sides of the two bases 102, and a clamping groove 405 is fixedly arranged in the middle of the transverse plate 404. Specifically, the cover on the device is manually taken off, and then the knob 401 is rotated, so that the telescopic rod 402 is driven to rotate, and the telescopic rod 402 drives the sleeve 403 to rotate, so that the lower end of the sleeve 403 is separated from the clamping groove 405;

working principle: when the cable branch box is used, the cable branch box can be hidden under the ground, a main cable enters the equipment from the right end wall body, is led out from the left end wall body after being branched, saves the ground space, and needs to be lifted up to the ground for operation under the conditions of maintenance and the like;

firstly, the cover on the equipment is manually taken off, and then the knob 401 is rotated, so that the telescopic rod 402 is driven to rotate, and the telescopic rod 402 drives the sleeve 403 to rotate, so that the lower end of the sleeve 403 is separated from the clamping groove 405; under the action of the tension spring A107, the side plate 104 is driven to slide towards the middle, so that the support rod A105 and the support rod B106 are extruded, the bottom plate 108 is driven to ascend, and as the round table arranged on the slide rod A103 makes the middle thicker, the side plate 104 is forced to stop after sliding for a certain distance, so that the bottom plate 108 stops ascending, the support A203 on the bottom plate 108 correspondingly ascends and stops, and the support A203 leaks out of the ground, namely the long plate 204 leaks out of the ground.

The next step is to manually pull up the handle 210 until stopping at a proper position of a human body, at the moment, the roller A211 is also lifted, as the roller B217 is stationary, the lower ends of the connecting rod A213 and the connecting rod B214 are close to the middle by being extruded by the belt 212, then the crank 207 is unfolded, the crank 207 is rocked clockwise, the roller A211 is driven to rotate, the roller B217 drives the gear B218 to rotate, the gear B218 drives the rack 219 to slide upwards, the box 201 is driven to slide upwards, and until the height suitable for maintenance is reached, when the rocker 208 is rocked, one side of the upper end of the bidirectional pawl 205 clamps the gear A209, so that the gear A209 cannot rotate reversely, and the box 201 is ensured not to descend after being lifted up; when the box 201 ascends, the cable in the box 201 stretches to drive the reel A305 to rotate, and the cable wound on the reel A305 is discharged, so that the communication of the cable is ensured when the box 201 ascends to the ground;

when the equipment needs to be restored to the ground, the bidirectional pawl 205 is firstly shifted to the other direction, so that the rocker 208 can only rotate anticlockwise, the crank 207 is rocked to rotate anticlockwise, the gear B218 is driven to rotate, the gear B218 drives the rack 219 to slide downwards, the box 201 is driven to slide downwards until the box 201 descends to the position above the bottom plate 108, the crank 207 is folded back in the next step, the handle 210 is manually pressed, the long plate 204 descends to the lowest position, the cover is covered on the box 201 in the next step, then a person stands in the middle of the cover, the bottom plate 108 descends through the gravity of a human body, the bottom plate 108 descends to drive the sleeve 403 to descend, finally the knob 401 is rotated, the telescopic rod 402 is driven to rotate, and the sleeve 403 is driven to rotate, so that reset is completed when the lower end of the sleeve 403 is buckled with the clamping groove 405.

Claims

1. Buried cable branch box convenient to go up and down, its characterized in that: comprises an ejecting mechanism (1), a lifting mechanism (2), a cable winding mechanism (3) and a buckling mechanism (4);

the ejection mechanism (1) includes: back plate A (101), base (102), slide bar A (103) and side plate (104), support bar A (105), support bar B (106), tension spring A (107), bottom plate (108), slide bar B (109), back plate B (110) and connecting block (111);

two bases (102) are arranged, and the two bases (102) are fixedly connected with the lower parts of the two sides of the backboard A (101) respectively; the base (102) is fixedly arranged in the ground; two slide bars A (103) are arranged, and two ends of the slide bars A (103) are fixedly connected with the inner sides of the two bases (102) respectively; two side plates (104) are arranged, and the two side plates (104) are both slidably arranged on the sliding rod A (103); the two side plates (104) are connected with the bottom plate (108) through struts; the tension springs A (107) are arranged in the two side plates (104);

the support rod comprises a support rod A (105) and a support rod B (106); the middle parts of the support rods A (105) and the support rods B (106) are rotationally connected; the lower end of the supporting rod A (105) is rotatably arranged on the left side plate (104); the upper end of the supporting rod A (105) is rotatably arranged on the bottom plate (108); the lower end of the supporting rod B (106) is rotatably arranged on the side plate (104) on the right side; the upper end of the supporting rod B (106) is rotatably arranged on the bottom plate (108); the rear end of the bottom plate (108) is fixedly connected with two connecting blocks (111), and the two connecting blocks (111) are respectively connected with the sliding grooves on the back plate A (101) in a sliding manner; two sliding rods B (109) are fixedly arranged at the front end of the upper surface of the bottom plate (108), and a back plate B (110) is fixedly arranged at the rear end of the upper surface of the bottom plate (108);

the lifting mechanism (2) comprises a box body (201) and a sliding rail (202); slide rails (202) at two ends of the back of the box body (201) are slidably arranged on slide grooves at two ends of the backboard B (110); a boss is arranged at the lower end of the front surface of the box body (201), and a round hole on the boss is in sliding connection with the slide rod B (109); the cable winding mechanism (3) is arranged in the box body (201); the fastening mechanism (4) is installed between the box body (201) and the bottom plate (108) in a penetrating mode.

2. The underground cable branch box convenient to lift according to claim 1, wherein: the lifting mechanism (2) further comprises: a bracket A (203), a long plate (204), a handle (210) and a lifting unit;

the bracket A (203) is fixedly arranged on the upper end surface of the bottom plate (108); a long plate (204) is slidably arranged in the sliding groove of the support A (203), teeth are arranged on the sliding groove of the support A (203), teeth are also arranged on two sides of the protrusion at the lower end of the long plate (204), and the teeth on the protrusion of the support A (203) are meshed with the teeth on the sliding groove of the long plate (204); the handle (210) is fixedly arranged at the top end of the long plate (204); the lifting unit is used for lifting the box body (201).

3. A buried cable distribution box for facilitating lifting as defined in claim 2, wherein: the lifting unit comprises a crank (207), a rocker (208), a roller A (211), a belt (212), a connecting rod A (213), a connecting rod B (214), a sliding block A (215), a sliding block B (216), a roller B (217), a gear B (218) and a rack (219); one end of the crank (207) is rotatably arranged in a groove on the rocker (208), the shaft of the rocker (208) is rotatably arranged in a round hole on the upper part of the long plate (204), the roller A (211) is fixedly connected with the shaft of the rocker (208), and meanwhile, the roller A (211) is connected with small rollers arranged on the sliding block A (215) and the sliding block B (216) and the roller B (217) through a belt (212); the transverse sliding groove on the backboard B (110) is in sliding connection with the sliding block A (215) and the sliding block B (216); the round hole on the backboard B (110) is rotationally connected with the shaft of the roller B (217); the upper ends of the connecting rod A (213) and the connecting rod B (214) are both in rotary connection with the shaft of the rocker (208), the lower end of the connecting rod A (213) is in rotary connection with the short shaft on the sliding block B (216), and the lower end of the connecting rod B (214) is in rotary connection with the short shaft on the sliding block A (215); the gear B (218) is fixedly connected with the shaft of the roller B (217), and meanwhile, the gear B (218) is meshed with the rack (219); the rack (219) is fixedly connected with the back of the box body (201).

4. A buried cable distribution box for facilitating lifting as defined in claim 3, wherein: the device also comprises a limiting mechanism, wherein the limiting mechanism comprises a bidirectional pawl (205), a tension spring B (206) and a gear A (209); the gear A (209) is fixedly arranged on the shaft of the rocker (208); a round hole is formed in the middle of the bidirectional pawl (205), the round hole is rotationally connected with a short shaft on the long plate (204), and the lower end of the tension spring B (206) is fixedly connected with a short rod arranged at the lower end of the bidirectional pawl (205); the upper end of the tension spring B (206) is fixedly connected with a short shaft of the long plate (204) which is positioned above the bidirectional pawl (205); the gear A (209) is matched with the bidirectional pawl (205).

5. The underground cable branch box convenient to lift according to claim 1, wherein: the cable winding mechanism (3) comprises: a bracket B (301), a pulley A (302) and a pulley B (303);

two brackets B (301) are arranged, the two brackets B (301) are respectively and fixedly arranged on the two bases (102), and pulleys A (302) are rotatably arranged on the brackets B (301); a group of pulleys B (303) are arranged on two sides of the box body (201); each set of pulleys B (303) comprises two pulleys B (303); the cable passes between two pulleys B (303).

6. The underground cable branch box convenient to lift according to claim 1, wherein: the cable winding mechanism (3) further comprises: a bracket C (304), a reel A (305), a cable branching module (306), a bracket D (307) and a reel B (308);

two brackets C (304) are arranged, the two brackets C (304) are respectively and fixedly arranged above the inside of the box body (201), and the reel A (305) is rotatably arranged on the rotating shaft of the brackets C (304); the cable branch module (306) is fixedly arranged on the rear end face of the inner wall of the box body (201); two brackets D (307) are fixedly arranged in the box body (201); the bracket D (307) is positioned below the bracket C (304); a reel B (308) is rotatably mounted on the bracket D (307); a main cable is wound on the reel A (305) and is communicated with the cable branching module (306); a drop cable is wound around the reel B (308) and communicates with the cable drop module (306).

7. The lifting-facilitating buried cable distribution box of claim 6, wherein: the reel A (305) and the reel B (308) are provided with conductive mechanisms; the conductive mechanism includes: conductive ring A (310) and conductive ring B (311);

the conductive ring A (310) is fixedly arranged in the reel A (305), the conductive ring A (310) is communicated with the conductive ring B (311), the conductive ring A (310) is connected with the main cable, the conductive ring B (311) is arranged in a rotating round hole at one end of the bracket C (304), the conductive ring B (311) is fixedly connected with one end of an excessive cable, and the other end of the excessive cable is connected with the cable branch module (306).

8. The lifting-facilitating buried cable distribution box of claim 7, wherein: the reel A (305) and the reel B (308) are also provided with tensioning mechanisms; the tensioning mechanism comprises a coil spring (309); one end of the coil spring (309) is fixedly connected with the reel A (305), and the other end of the coil spring (309) is fixedly connected with a rotating shaft on the bracket C (304).

9. The underground cable branch box convenient to lift according to claim 1, wherein: the fastening mechanism (4) comprises: a knob (401), a telescopic rod (402), a sleeve (403), a transverse plate (404) and a clamping groove (405);

the knob (401) is fixedly connected with the top end of the telescopic rod (402), the upper end of the telescopic rod (402) is rotatably arranged in a round hole on the box body (201), the telescopic rod (402) is slidably arranged in the sleeve (403), the sleeve (403) penetrates through the round hole on the lower surface of the box body (201) to be rotatably connected with the round hole on the bottom plate (108), and the lower end of the sleeve (403) is buckled with the clamping groove (405); the transverse plate (404) is fixedly connected with the inner sides of the two bases (102), and a clamping groove (405) is fixedly arranged in the middle of the transverse plate (404).

10. The underground cable branch box convenient to lift according to claim 1, wherein: the sliding rod A (103) is provided with a round platform which is used for preventing the side plate (104) from sliding.