CN113872075A

CN113872075A - Distribution box with high maintenance safety

Info

Publication number: CN113872075A
Application number: CN202111374374.6A
Authority: CN
Inventors: 赵娅梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2021-12-31

Abstract

The invention belongs to the field of distribution boxes, and particularly relates to a distribution box with high maintenance safety, which comprises a wiring box mechanism, a control box mechanism and an electric control element, wherein the electric control element is arranged in the control box mechanism matched with the wiring box mechanism; the control box mechanism and the wiring box mechanism need to be detached or assembled separately in disassembly or assembly, inconvenience in disassembly or assembly of an electric control element or a power line in the distribution box caused by difficulty in movement of the self weight of the traditional distribution box is avoided, disassembly operation is flexible and rapid, and high assembly and disassembly efficiency is achieved.

Description

Distribution box with high maintenance safety

Technical Field

The invention belongs to the field of distribution boxes, and particularly relates to a distribution box with high maintenance safety.

Background

The distribution box is a low-voltage distribution box formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch. When the fault or abnormal operation occurs, the circuit is cut off or an alarm is given by the aid of the protective electric appliance. The measuring instrument can display various parameters in operation, and can also adjust some electrical parameters to prompt or send out signals for deviation from normal working state.

The block terminal can rationally distribute the electric energy, the convenient operation that opens and shuts to the circuit. The safety protection level is higher, and the conduction state of the circuit can be visually displayed.

The traditional distribution box has a high probability of electric shock risk when the internal electric control element is repaired or replaced. In addition, when installing the dismantlement to the block terminal, can only carry out the dismantlement installation of inside electrical control original paper and electric wire under the unmovable condition of block terminal because of the block terminal dead weight is great to make its installation or dismantle the in-process need use the position of block terminal as the reference and carry out a great deal of operations that adapt to the block terminal position, its complex operation is inflexible, and efficiency is lower.

The invention designs a distribution box with high maintenance safety to solve the problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention discloses a distribution box with high maintenance safety, which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A distribution box with high maintenance safety comprises a wiring box mechanism, a control box mechanism and an electric control element, wherein the electric control element is arranged in the control box mechanism matched with the wiring box mechanism; all the electric control elements are respectively connected into corresponding circuits in the wiring box mechanism in a plugging mode and control the corresponding circuits.

The box control mechanism comprises a cabinet body B, an insert rod, a spring B, a limiting rod B, a spring C, a limiting rod C, a spring D and a back plate B, wherein four sliding grooves B are symmetrically formed in four corners of one side end wall of the cabinet body B, through which two side end walls are communicated, an insert rod slides in each sliding groove B, and the insert rod is nested with the spring B for resetting the insert rod; the inner side wall of each sliding groove B is provided with a sliding groove C and a sliding groove D which are distributed at intervals along the sliding direction of the inserted bar; a limiting rod B slides in the sliding groove C along the direction vertical to the movement of the corresponding inserted rod, the limiting rod B is matched with a limiting groove B on the side wall of the corresponding inserted rod, and a spring C for resetting the limiting rod B is nested on the limiting rod B; a limiting rod C slides in the sliding groove D along the direction vertical to the movement of the corresponding inserted rod, and a spring D for resetting the limiting rod C is nested on the limiting rod C; a limiting groove C on the side wall of the limiting rod C is matched with the tail end of the corresponding inserted rod; a back plate B perpendicular to the inserted rod is arranged in the cabinet body B in a sliding mode along the direction parallel to the motion of the inserted rod, and the back plate B can swing out around a fixed vertical axis at one side end of the opening B of the cabinet body B; a plurality of groups of conductor bolts are arranged on the back plate B for mounting the electric control elements, and each group of the bolts is electrically connected with the corresponding electric control element through a lead; the inclined plane B end of the limiting rod C is matched with the limiting groove D on the side wall of the back plate B.

The wiring box mechanism comprises a cabinet body A, a limiting rod A, a spring A and a back plate A, wherein four slots are symmetrically formed in the four corners of the end wall of one side of the cabinet body A, which is through from the end walls of two sides, and a sliding groove A is formed in the inner side wall of each slot; a limiting rod A slides in each sliding groove A, and a spring A for resetting the limiting rod A is nested on each limiting rod A; the inclined plane A end of the limiting rod A is matched with a limiting groove A on the side wall of the corresponding inserted rod; the cabinet body A is internally provided with a back plate A matched with the back plate B, and the back plate A is provided with a plurality of groups of conductor plug bushes which are matched with the bolts in a one-to-one correspondence manner and are electrically connected with corresponding power lines entering the cabinet body A.

As a further improvement of the technology, a cabinet door A is mounted at an opening A on the side end wall of the cabinet body A without the slot through a hinge, and a manual handle is mounted on the cabinet door A; the bottom of the side end wall with an opening A on the cabinet body A is provided with two symmetrically distributed threading grooves; a threading pipe for leading a power supply cable into the cabinet body A is arranged at each threading groove; a cabinet door B is mounted at an opening B on the side end wall of the cabinet body B, which is not provided with the inserted link, through a hinge, and a manual handle is mounted on the cabinet door B; the plug pin and the plug bush are made of copper.

As a further improvement of the technology, the spring A is positioned in a ring groove A on the inner wall of the corresponding chute A; the spring A is a compression spring; one end of the spring A is connected with the inner wall of the corresponding ring groove A, and the other end of the spring A is connected with a compression spring ring A arranged on the corresponding limiting rod A; the exposed end of each limiting rod A is provided with a pull ring.

As a further improvement of the present technology, the spring B is an extension spring; the spring B is positioned in the annular groove B on the inner wall of the corresponding sliding groove B; one end of the spring B is connected with the inner wall of the corresponding ring groove B, and the other end of the spring B is connected with a tension spring ring arranged on the corresponding inserted bar; the spring C is a compression spring; the spring C is positioned in the annular groove C on the inner wall of the corresponding sliding groove C; one end of the spring C is connected with the inner wall of the corresponding ring groove C, and the other end of the spring C is connected with a compression spring ring B arranged on the corresponding limiting rod B; the spring D is an extension spring; one end of the spring D is connected with a tension spring plate arranged at the tail end of the corresponding limiting rod C, and the other end of the spring D is connected with the outer side wall of the cabinet body B; and the limiting rod C is provided with a limiting ring A for limiting the range of the limiting rod C penetrating into the corresponding sliding groove D.

As a further improvement of the technology, four limiting blocks which are in one-to-one correspondence with the limiting rods C are symmetrically arranged on two side end walls of the back plate B through L rods; the limiting groove D matched with the limiting rod C is positioned on the side wall of the corresponding limiting block; the two sides of the upper end of the back plate B are provided with a cylindrical guide block A and a square guide block B through connecting rods, and the two sides of the lower end of the back plate B are also provided with the cylindrical guide block A and the directional guide block B through the connecting rods; the two guide blocks A are symmetrically distributed in the vertical direction, and the two lead blocks B are symmetrically distributed in the vertical direction; the two guide blocks A respectively slide in the sliding grooves E on the two guide rails A along the motion direction of the inserted bar, and the connecting rod connected with the guide blocks A slides in the sliding grooves F on the corresponding guide rails A; the tail end of the sliding chute F on each guide rail A is provided with a circular groove which does not limit the rotation of the corresponding connecting rod; the two guide blocks B respectively slide in the sliding grooves G on the two guide rails B along the motion direction of the inserted bar; the connecting rod connected with the guide block B slides in the sliding groove H on the corresponding guide rail B. The length of the guide rail B is smaller than that of the guide rail A, so that when the backboard B drives the guide blocks A to slide to the circular groove range on the corresponding guide rail A, the guide blocks B which move synchronously along with the backboard B just break away from the sliding grooves G on the corresponding guide rail B, and the backboard B can swing outwards from the cabinet body B around the central axis of the two guide blocks A.

Compared with the traditional distribution box, the back plate B in the control box mechanism can slide towards the direction outside the cabinet body B only after the control box mechanism is completely separated from the wiring box mechanism, so that maintenance personnel can pull out the back plate B from the cabinet body for maintenance under the condition that the power is completely cut off after the control box mechanism is completely separated from the wiring box mechanism, the safety of maintenance or replacement operation of certain electrical control elements on the back plate B is ensured, and the electric shock hazard in the maintenance or replacement process is avoided.

In addition, compared with the traditional distribution box, the control box mechanism and the wiring box mechanism need to be detached or assembled separately in the detaching or assembling process, the inconvenience of detaching or assembling an electric control element or a power line in the distribution box caused by the difficulty in moving the traditional distribution box due to the self weight is avoided, the detaching operation is flexible and rapid, and the installing and detaching efficiency is higher.

The invention has simple structure and better use effect.

Drawings

Fig. 1 is an overall schematic view of the present invention from two perspectives.

Fig. 2 is a schematic cross-sectional view of the electrical control element, the back plate a, the plug, the back plate B and the plug bush in two views.

FIG. 3 is a schematic cross-sectional view of the wiring cabinet mechanism and the control cabinet mechanism.

FIG. 4 is a schematic partial cross-sectional view of the wiring cabinet mechanism in cooperation with the control cabinet mechanism.

Fig. 5 is a schematic cross-sectional view of the guide block a and guide rail a and the guide block B and guide rail B.

Fig. 6 is a schematic view of the control box mechanism from two perspectives.

Fig. 7 is a schematic sectional view of the guide rail a.

Fig. 8 is a schematic view of the guide rail B.

Fig. 9 is a back plate B and two partial schematic views thereof.

Fig. 10 is a cabinet B and a partial sectional view thereof.

FIG. 11 is a schematic view of a stop lever A, an insert lever and a stop lever C.

FIG. 12 is a schematic view of a wiring cabinet mechanism and portions thereof.

Fig. 13 is a cabinet B and a partial sectional view thereof.

Number designation in the figures: 1. a wiring box mechanism; 2. a cabinet body A; 3. a slot; 4. a chute A; 5. a ring groove A; 6. an opening A; 7. a threading slot; 8. a threading tube; 9. a cabinet door A; 10. a handle; 11. a hinge; 12. a limiting rod A; 13. an inclined plane A; 14. a spring A; 15. a compression spring ring A; 16. a back plate A; 17. inserting a sleeve; 18. a control box mechanism; 19. a cabinet body B; 20. a chute B; 21. a ring groove B; 22. a chute C; 23. a ring groove C; 24. a chute D; 25. an opening B; 26. a cabinet door B; 27. inserting a rod; 28. a limiting groove A; 29. a limiting groove B; 30. a spring B; 31. a tension spring ring; 32. a limiting rod B; 33. a spring C; 34. a limiting rod C; 35. a bevel B; 36. a limiting groove C; 37. a spring D; 38. a tension spring plate; 39. a limiting ring A; 40. a back plate B; 41. an L-bar; 42. a limiting block; 43. a limiting groove D; 44. a connecting rod; 45. a guide block A; 46. a guide block B; 47. a bolt; 48. a guide rail A; 49. a chute E; 50. a chute F; 51. a circular groove; 52. a guide rail B; 53. a chute G; 54. a chute H; 55. an electrical control element; 56. a wire; 57. and a compression spring ring B.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1, it includes wiring box mechanism 1, control box mechanism 18, electric control element 55, wherein as shown in fig. 1, 2, 4, the control box mechanism 18 matching with wiring box mechanism 1 is installed with electric control element 55; as shown in fig. 2 and 3, all the electrical control elements 55 are plugged into and control corresponding circuits in the wiring box mechanism 1.

As shown in fig. 6, the control box mechanism 18 includes a cabinet B19, an insert rod 27, a spring B30, a stopper rod B32, a spring C33, a stopper rod C34, a spring D37, and a back plate B40, wherein as shown in fig. 4 and 10, four sliding grooves B20 are symmetrically formed in four corners of an end wall of one side of the cabinet B19, through which end walls of two sides of the cabinet B19 penetrate, the insert rod 27 is slidably arranged in each sliding groove B20, and the insert rod 27 is nested with the spring B30 for returning the insert rod 27; the inner side wall of each sliding groove B20 is provided with a sliding groove C22 and a sliding groove D24 which are distributed at intervals along the sliding direction of the inserted link 27; as shown in fig. 4 and 11, a limiting rod B32 slides in the sliding groove C22 in a direction perpendicular to the movement of the corresponding inserted rod 27, the limiting rod B32 is matched with a limiting groove B29 on the side wall of the corresponding inserted rod 27, and a spring C33 for resetting the limiting rod B32 is nested on the limiting rod B32; a limiting rod C34 slides in the sliding groove D24 along the direction vertical to the movement of the corresponding inserted link 27, and a spring D37 for resetting the limiting rod C34 is nested on the limiting rod C34; the limiting groove C36 on the side wall of the limiting rod C34 is matched with the tail end of the corresponding inserted rod 27; as shown in fig. 3, a back plate B40 perpendicular to the insertion rod 27 slides in the cabinet B19 along the direction parallel to the movement of the insertion rod 27, and the back plate B40 can swing out around the fixed vertical axis of one side end of the cabinet B19 at the opening B25; as shown in fig. 2, 3 and 9, a plurality of sets of conductor pins 47 are mounted on the back panel B40 for mounting the electric control elements 55, and each set of pins 47 is electrically connected to the corresponding electric control element 55 through a wire 56; as shown in FIGS. 4 and 11, the inclined surface B35 of the limiting rod C34 is matched with the limiting groove D43 on the side wall of the back plate B40.

As shown in fig. 12, the wiring box mechanism 1 includes a cabinet a2, a limiting rod a12, a spring a14, and a back plate a16, wherein as shown in fig. 13, four slots 3 are symmetrically formed at four corners of an end wall of one side of the cabinet a2, through which end walls of two sides of the cabinet a2 penetrate, and a sliding groove a4 is formed in an inner side wall of each slot 3; as shown in fig. 4 and 11, each sliding groove a4 has a limiting rod a12 sliding therein, and each limiting rod a12 is nested with a spring a14 for returning the limiting rod a; the inclined surface A13 end of the limiting rod A12 is matched with a limiting groove A28 on the side wall of the corresponding inserted rod 27; as shown in fig. 2, 3 and 12, a backboard a16 matched with the backboard B40 is installed in the cabinet a2, and a plurality of groups of conductor plugs 17 which are matched with the plugs 47 in a one-to-one correspondence and electrically connected with corresponding power lines entering the cabinet a2 are installed on the backboard a 16.

As shown in fig. 12 and 13, a cabinet door a9 is mounted on the cabinet a2 through a hinge 11 at an opening a6 on the side end wall without the slot 3, and a manual handle 10 is mounted on the cabinet door a 9; two symmetrically distributed threading grooves 7 are formed in the bottom of the side end wall with an opening A6 on the cabinet body A2; each threading groove 7 is provided with a threading pipe 8 for leading a power supply cable into the cabinet body A2; as shown in fig. 6, a cabinet door B26 is mounted on an opening B25 of a side end wall of the cabinet B19, on which the insert rod 27 is not mounted, through a hinge 11, and a manual handle 10 is mounted on the cabinet door B26; the plug 47 and the plug bush 17 are made of copper.

As shown in fig. 4 and 13, the spring a14 is located in a ring groove a5 on the inner wall of the corresponding sliding groove a 4; the spring A14 is a compression spring; one end of the spring A14 is connected with the inner wall of the corresponding ring groove A5, and the other end is connected with a compression spring ring A15 arranged on the corresponding limiting rod A12; the exposed end of each stopper rod A12 has a pull ring.

As shown in fig. 4 and 10, the spring B30 is an extension spring; the spring B30 is positioned in a ring groove B21 on the inner wall of the corresponding sliding groove B20; one end of the spring B30 is connected with the inner wall of the corresponding ring groove B21, and the other end is connected with the tension spring ring 31 arranged on the corresponding inserted bar 27; the spring C33 is a compression spring; the spring C33 is positioned in a ring groove C23 on the inner wall of the corresponding chute C22; one end of the spring C33 is connected with the inner wall of the corresponding ring groove C23, and the other end is connected with a compression spring ring B57 arranged on the corresponding limiting rod B32; the spring D37 is an extension spring; one end of the spring D37 is connected with the tension spring plate 38 arranged at the tail end of the corresponding limiting rod C34, and the other end is connected with the outer side wall of the cabinet body B19; the limiting rod C34 is provided with a limiting ring A39 for limiting the range of the limiting rod penetrating into the corresponding sliding groove D24.

As shown in fig. 4 and 9, four limit blocks 42 corresponding to the limit rods C34 are symmetrically mounted on two side end walls of the back plate B40 through L-shaped rods 41; the limiting groove D43 matched with the limiting rod C34 is positioned on the side wall of the corresponding limiting block 42; as shown in fig. 9, a cylindrical guide block a45 and a square guide block B46 are mounted on both sides of the upper end of the backboard B40 through a connecting rod 44, and a cylindrical guide block a45 and a directional guide block B46 are also mounted on both sides of the lower end of the backboard B40 through a connecting rod 44; the two guide blocks A45 are symmetrically distributed in the vertical direction, and the two lead 56 blocks B are symmetrically distributed in the vertical direction; as shown in fig. 5, 7 and 8, the two guide blocks a45 slide in the sliding grooves E49 on the two guide rails a48 respectively along the moving direction of the inserted link 27, and the connecting link 44 connected with the guide block a45 slides in the sliding groove F50 on the corresponding guide rail a 48; the end of the sliding slot F50 on each guide rail a48 has a circular slot 51 that does not limit the rotation of the corresponding connecting rod 44; the two guide blocks B46 slide in the chutes G53 on the two guide rails B52 along the moving direction of the inserted link 27; the connecting rod 44 of the connecting guide block B46 slides in the slide slot H54 on the corresponding guide rail B52. As shown in fig. 3, the length of the guide rail B52 is smaller than that of the guide rail a48, so that when the back plate B40 drives the guide block a45 to slide into the circular groove 51 of the corresponding guide rail a48, the guide block B46 moving synchronously with the back plate B40 just disengages from the sliding groove G53 of the corresponding guide rail B52, and the back plate B40 can swing around the central axis of the two guide blocks a45 to the outside of the cabinet B19.

The working process of the invention is as follows: in the initial state, the control box mechanism 18 and the wiring box mechanism 1 are separated from each other. The back plate B40 is located in the cabinet body B19 and located at the extreme position of the guide rail, the two guide blocks A45 are respectively located at the extreme position of the sliding groove E49 on the corresponding guide rail A48, and the two guide blocks B46 are respectively located at the extreme position of the sliding groove G53 on the corresponding guide rail B52. The inclined plane B35 ends of the four stopper rods C34 are inserted into the stopper grooves D43 of the corresponding stopper 42 and fix the position of the back plate B40 on the guide rail, the four insertion rods 27 are respectively opposite to the stopper grooves C36 of the corresponding stopper rods C34 and are not inserted into the stopper grooves C36 of the corresponding stopper rods C34, and the four stopper rods B32 are not inserted into the stopper grooves B29 of the corresponding insertion rods 27 and abut against the side walls of the corresponding insertion rods 27. The inclined surfaces A13 ends of the four limiting rods A12 on the wiring box mechanism 1 respectively protrude out of the inner walls of the corresponding slots 3. Spring A14 and spring C33 are both in compression, and spring B30 and spring D37 are both in tension.

When the invention is needed, the junction box mechanism is firstly placed and fixed at a required position, the cabinet door A9 is opened, all cables respectively penetrate into the cabinet body A2 from the threading groove 7 at the bottom of the rear side of the cabinet body A2, and the cables are respectively and electrically connected with the tail end of the plug bush 17 on the back plate A16. When the electric connection between the cable and the plug bush 17 is finished, the cabinet door A9 is closed, and the electric connection between the junction box mechanism and the cable can be completed.

Then, the control box mechanism 18 is mounted on the wiring box mechanism 1, and the mounting process is as follows:

the control box mechanism 18 is locked onto the wiring box mechanism 1, so that the four insertion rods 27 on the cabinet B19 of the control box mechanism 18 are simultaneously inserted into the four slots 3 on the cabinet a2 of the wiring box mechanism 1. During the process of inserting the inserted rod 27 into the corresponding slot 3, the end of the inserted rod 27 interacts with the inclined surface a13 of the corresponding stopper rod a12 and pushes the stopper rod a12 into the corresponding sliding groove a4, the spring a14 for resetting the stopper rod a12 is further compressed, and the stopper rod a12 does not form an obstruction to the movement of the inserted rod 27 into the slot 3.

When the four insertion rods 27 are respectively inserted into the extreme positions in the slot 3, the limit grooves a28 on the side walls of the insertion rods 27 are exactly opposite to the ends of the inclined surfaces a13 of the limit rods a12, and the ends of the inclined surfaces a13 of the limit rods a12 are instantly inserted into the limit grooves a28 under the reset action of the corresponding springs a14 and limit the movement of the insertion rods 27 out of the slot 3. At this time, the cabinet B19 of the control box mechanism 18 is still spaced apart from the cabinet a2 of the wiring box mechanism 1.

As the control box mechanism 18 is further engaged with the wiring box mechanism 1, the four insert rods 27 fixed in the four slots 3 slide in the corresponding slide grooves B20, the springs B30 for returning the insert rods 27 are further extended, and the four insert rods 27 are inserted into the stopper grooves C36 of the stopper rods C34, respectively. When the limiting groove B29 on the inserted link 27 is completely opposite to the corresponding limiting rod B32, the tail end of the inserted link 27 is completely inserted into the corresponding limiting groove C36, the four limiting rods B32 are simultaneously and instantly inserted into the corresponding limiting grooves B29 under the action of the corresponding springs C33 respectively and lock the position of the inserted link 27 in the sliding groove B20, and the inserted link 27 respectively locks the position of the corresponding limiting rods C34 in the corresponding sliding grooves D24.

In the process of buckling the control box mechanism 18 to the wiring box mechanism 1, the pins 47 on the back plate B40 correspond to the inserting sleeves 17 on the back plate a16 one by one, and the pins 47 on the back plate B40 are respectively inserted into the inserting sleeves 17 on the back plate a 16.

When the cabinet a2 abuts against the cabinet B19, all the pins 47 are inserted into the corresponding sockets 17 and complete the electrical connection between the electrical control unit 55 and the corresponding cables. At this point, the engagement and attachment of the control box mechanism 18 and the wiring box mechanism 1 to each other is completed.

When some electric control elements 55 in the control box mechanism 18 in the working state need to be repaired or replaced, the four limiting rods a12 are pulled outwards simultaneously, the inclined surface a13 ends of the four limiting rods a12 are quickly separated from the limiting grooves a28 on the corresponding plug rods 27 and are contracted in the corresponding sliding grooves a4, and the spring a14 on each limiting rod a12 is compressed again.

The cabinet body a2 is separated from the cabinet body B19, so that the four insertion rods 27 are separated from the corresponding slots 3 respectively, when the four insertion rods 27 are separated from the corresponding slots 3 respectively, the acting force on each limiting rod a12 is removed, and the limiting rod a12 is reset instantly under the reset action of the corresponding spring a14, so that the separation of the wiring box mechanism 1 and the control box mechanism 18 is completed, and all the electric control elements 55 are completely disconnected from the electric connection of the corresponding insertion sleeves 17 respectively. The electric control box mechanism has the advantages that the electric shock hazard can be avoided when an operator carries out maintenance and replacement on certain electric control elements 55 in the control box mechanism 18, and the safety is high.

When the wiring box mechanism 1 is separated from the control box mechanism 18, the cabinet door B26 is opened, and then the four limiting rods B32 are pulled outwards at the same time, so that the inclined plane B35 end of the limiting rod B32 is quickly separated from the limiting groove B29 on the corresponding inserted rod 27, and the spring C33 for resetting the limiting rod B32 is further compressed. The four inserted rods 27 are respectively and rapidly separated from the limiting grooves C36 on the corresponding limiting rods C34 under the reset action of the corresponding springs B30 to reset and release the position locking of the limiting rods C34 in the corresponding sliding grooves D24, and the limiting grooves B29 on the four inserted rods 27 are respectively staggered with the tail ends of the corresponding limiting rods B32. Then, the acting force on the stopper rod B32 is removed, and the four stopper rods B32 are respectively abutted against the side walls of the corresponding plug rods 27 under the restoring action of the corresponding springs C33.

Then, the four stopper rods C34 are pulled outward at the same time, so that the inclined surfaces B35 of the stopper rods C34 disengage from the stopper grooves D43 on the corresponding stoppers 42 at the same time, the position of the back plate B40 in the cabinet B19 is released, and the spring D37 for resetting the stopper rods C34 is further stretched. The back panel B40 is then pulled to slide along guide rails A48 and B52, and out of the cabinet B19. When the four limit blocks 42 are respectively separated from the corresponding limit rods C34, the acting force on the limit rods C34 is removed, and the limit rods C34 are instantly reset under the reset action of the springs D37. When the back plate B40 slides to the opening B25 of the cabinet body B19, the connecting rods 44 on the two guide blocks A45 respectively disengage from the corresponding sliding grooves F50 and enter the corresponding circular grooves 51, and the two guide blocks B46 respectively disengage from the corresponding guide rails B52 at the same time.

When the two guide blocks A45 reach the extreme positions of the corresponding guide rails A48 respectively, the back plate B40 swings around the circular central axes of the two cylindrical guide blocks A45 towards the outside of the cabinet body B19, and when the back plate B40 swings completely to the outside of the cabinet body B19, the electric control element 55 which needs to be replaced or repaired on the back plate B40 is replaced or repaired.

After the replacement and maintenance of the electric control element 55 on the back plate B40 are finished, the back plate B40 is swung back around the central axis of the two guide blocks a45 into the cabinet B19 again, so that the two guide blocks B46 are respectively opposite to the sliding grooves G53 on the corresponding guide rails B52. Then, the push back plate B40 slides back along the guide rails a48 and B52 in the cabinet B19 to return, and the two guide blocks B46 enter the sliding grooves G53 on the corresponding guide rails B52 again and slide back in the sliding grooves G53 to return. When the backboard B40 drives the four limit blocks 42 to meet the inclined planes B35 of the corresponding limit rods C34, respectively, the limit blocks 42 moving the reset backboard B40 make the inclined plane B35 ends of the limit rods C34 contract towards the corresponding sliding grooves D24 and do not hinder the reset of the backboard B40 in the cabinet B19, and the spring D37 is further stretched.

When the back plate B40 is reset in the cabinet B19, the two guide blocks a45 are reset in the corresponding guide rails a48, the two guide blocks B46 are reset in the corresponding guide rails B52, the limiting grooves D43 on the four limiting blocks 42 are completely opposite to the ends of the inclined surfaces B35 of the limiting rods C34, and the four limiting rods C34 are inserted into the limiting grooves D43 on the corresponding limiting blocks 42 and fix the initial position of the back plate B40 in the cabinet B19 under the reset action of the corresponding springs D37, so far, the replacement or maintenance of the electric control elements 55 in the control box mechanism 18 is finished, and the cabinet door B26 is closed.

When the control box mechanism 18 and the wiring box mechanism 1 need to be disassembled, the control box mechanism 18 is first disassembled from the wiring box mechanism 1, and the disassembling process is as described above, and will not be described herein again. After the control box mechanism 18 is detached from the wiring box mechanism 1, the control box mechanism 18 is moved to a proper position.

Then, the plug bush 17 in the wiring box mechanism 1 is electrically disconnected from the corresponding cable, the cable is pulled out from the cabinet a2, and the wiring box mechanism 1 is moved to a proper position.

The separation of control box mechanism 18 and wiring box mechanism 1 is dismantled, is moved and is installed and effectively has reduced the single transport quality of block terminal for the dismantlement transport of block terminal is more convenient quick, also is convenient for to the dismantlement maintenance of electrical control element 55, has higher practicality, effectively improves dismantlement installation effectiveness.

In conclusion, the beneficial effects of the invention are as follows: in the invention, the back plate B40 in the control box mechanism 18 can slide towards the direction outside the cabinet body B19 only after the control box mechanism 18 is completely separated from the wiring box mechanism 1, so that a maintainer can pull out the back plate B40 from the cabinet body for maintenance under the condition that the power is completely cut off after the control box mechanism 18 is completely separated from the wiring box mechanism 1, the safety of maintenance or replacement operation of certain electric control elements 55 on the back plate B40 is ensured, and the electric shock hazard in the maintenance or replacement process is avoided.

In addition, compared with the traditional distribution box, the control box mechanism 18 and the wiring box mechanism 1 need to be detached or assembled separately in the detaching or assembling process, the inconvenience of detaching or assembling the electric control element 55 or the power line in the distribution box caused by the difficulty in moving the traditional distribution box due to the self weight is avoided, the detaching operation is flexible and rapid, and the installing and detaching efficiency is high.

Claims

1. The utility model provides a block terminal that maintenance security is high, its characterized in that: the intelligent control system comprises a wiring box mechanism, a control box mechanism and an electric control element, wherein the electric control element is arranged in the control box mechanism matched with the wiring box mechanism; all the electric control elements are respectively connected into corresponding circuits in the wiring box mechanism in a plugging mode and control the corresponding circuits;

the box control mechanism comprises a cabinet body B, an insert rod, a spring B, a limiting rod B, a spring C, a limiting rod C, a spring D and a back plate B, wherein four sliding grooves B are symmetrically formed in four corners of one side end wall of the cabinet body B, through which two side end walls are communicated, an insert rod slides in each sliding groove B, and the insert rod is nested with the spring B for resetting the insert rod; the inner side wall of each sliding groove B is provided with a sliding groove C and a sliding groove D which are distributed at intervals along the sliding direction of the inserted bar; a limiting rod B slides in the sliding groove C along the direction vertical to the movement of the corresponding inserted rod, the limiting rod B is matched with a limiting groove B on the side wall of the corresponding inserted rod, and a spring C for resetting the limiting rod B is nested on the limiting rod B; a limiting rod C slides in the sliding groove D along the direction vertical to the movement of the corresponding inserted rod, and a spring D for resetting the limiting rod C is nested on the limiting rod C; a limiting groove C on the side wall of the limiting rod C is matched with the tail end of the corresponding inserted rod; a back plate B perpendicular to the inserted rod is arranged in the cabinet body B in a sliding mode along the direction parallel to the motion of the inserted rod, and the back plate B can swing out around a fixed vertical axis at one side end of the opening B of the cabinet body B; a plurality of groups of conductor bolts are arranged on the back plate B for mounting the electric control elements, and each group of the bolts is electrically connected with the corresponding electric control element through a lead; the inclined plane B end of the limiting rod C is matched with a limiting groove D on the side wall of the back plate B;

2. The distribution box with high maintenance safety according to claim 1, characterized in that: a cabinet door A is mounted at an opening A on the side end wall of the cabinet body A without the slot through a hinge, and a manual handle is mounted on the cabinet door A; the bottom of the side end wall with an opening A on the cabinet body A is provided with two symmetrically distributed threading grooves; a threading pipe for leading a power supply cable into the cabinet body A is arranged at each threading groove; a cabinet door B is mounted at an opening B on the side end wall of the cabinet body B, which is not provided with the inserted link, through a hinge, and a manual handle is mounted on the cabinet door B; the plug pin and the plug bush are made of copper.

3. The distribution box with high maintenance safety according to claim 1, characterized in that: the spring A is positioned in the annular groove A on the inner wall of the corresponding sliding groove A; the spring A is a compression spring; one end of the spring A is connected with the inner wall of the corresponding ring groove A, and the other end of the spring A is connected with a compression spring ring A arranged on the corresponding limiting rod A; the exposed end of each limiting rod A is provided with a pull ring.

4. The distribution box with high maintenance safety according to claim 1, characterized in that: the spring B is an extension spring; the spring B is positioned in the annular groove B on the inner wall of the corresponding sliding groove B; one end of the spring B is connected with the inner wall of the corresponding ring groove B, and the other end of the spring B is connected with a tension spring ring arranged on the corresponding inserted bar; the spring C is a compression spring; the spring C is positioned in the annular groove C on the inner wall of the corresponding sliding groove C; one end of the spring C is connected with the inner wall of the corresponding ring groove C, and the other end of the spring C is connected with a compression spring ring B arranged on the corresponding limiting rod B; the spring D is an extension spring; one end of the spring D is connected with a tension spring plate arranged at the tail end of the corresponding limiting rod C, and the other end of the spring D is connected with the outer side wall of the cabinet body B; and the limiting rod C is provided with a limiting ring A for limiting the range of the limiting rod C penetrating into the corresponding sliding groove D.

5. The distribution box with high maintenance safety according to claim 1, characterized in that: two side end walls of the back plate B are symmetrically provided with four limiting blocks which are in one-to-one correspondence with the limiting rods C through L rods; the limiting groove D matched with the limiting rod C is positioned on the side wall of the corresponding limiting block; the two sides of the upper end of the back plate B are provided with a cylindrical guide block A and a square guide block B through connecting rods, and the two sides of the lower end of the back plate B are also provided with the cylindrical guide block A and the directional guide block B through the connecting rods; the two guide blocks A are symmetrically distributed in the vertical direction, and the two lead blocks B are symmetrically distributed in the vertical direction; the two guide blocks A respectively slide in the sliding grooves E on the two guide rails A along the motion direction of the inserted bar, and the connecting rod connected with the guide blocks A slides in the sliding grooves F on the corresponding guide rails A; the tail end of the sliding chute F on each guide rail A is provided with a circular groove which does not limit the rotation of the corresponding connecting rod; the two guide blocks B respectively slide in the sliding grooves G on the two guide rails B along the motion direction of the inserted bar; the connecting rod connected with the guide block B slides in the sliding groove H on the corresponding guide rail B; the length of the guide rail B is smaller than that of the guide rail A.