A retractable multi-purpose distribution box and its working method

Abstract

The present invention discloses a telescopic multi-purpose distribution box and its working method, belonging to the technical field of distribution boxes. The present invention includes a C-shaped box body. Horizontally telescopic grooves are symmetrically arranged on the upper and lower sides of both sides of the C-shaped box body, and vertically telescopic grooves are symmetrically arranged on both sides of the back. One end of the horizontally telescopic grooves symmetrically arranged on the upper and lower sides of both sides is communicated with the vertically telescopic grooves and has the same grooving depth. Multiple rows of horizontal one-way locking groove groups and multiple rows of vertical one-way locking groove groups are symmetrically arranged above the C-shaped box body and on both sides of the back. Multiple rows of horizontal two-way locking groove groups are symmetrically arranged at the bottom of the C-shaped box body. Telescopic C-shaped plates that can be telescoped are symmetrically installed in the upper and lower horizontal telescopic grooves and the vertical telescopic grooves on both sides. Multiple groups of one-way locking mechanisms are respectively installed above and on the back of the C-shaped telescopic plates, and multiple groups of two-way locking mechanisms are installed at the bottom at the same time. Telescopic door mechanisms that can be locked and telescoped are symmetrically installed on the opening sides of the C-shaped telescopic plates on both sides. Through the above mechanisms, the size of the box body can be easily controlled according to the usage space requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution boxes, and particularly relates to a retractable multi-purpose distribution box and its working method. Background Art

[0002] The distribution box has the characteristics of small volume, simple installation, special technical performance, fixed position, unique configuration function, not restricted by the site, relatively common application, stable and reliable operation, high space utilization rate, less land occupation and environmental protection effect. It is the control center for rationally distributing electric energy among various components in the power supply line, the control link for reliably receiving the upper power supply and correctly feeding out the load electric energy, and also the key to obtaining whether the user is satisfied with the power supply quality. Improving the operation reliability of the power distribution box is the goal of creating high-quality projects.

[0003] However, during the use of the existing distribution box, due to the limitation of the use space, the size of the distribution box cannot be flexibly adjusted. At the same time, because different sizes of distribution boxes must be equipped according to the number of internal devices installed, when it needs to be moved to other places for use after use, there is a situation where the size of the internal installation platform or the external space requirements do not match, and it is necessary to purchase again, increasing the cost.

[0004] Based on the above problems, the present invention proposes a retractable multi-purpose distribution box and its working method. Summary of the Invention

[0005] Aiming at the problems in the above technical background, the purpose of the present invention is to provide a retractable multi-purpose distribution box and its working method, which solves the problem that the existing distribution box in the background art cannot be adjusted in size according to the use requirements.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A retractable multi-purpose distribution box, including a C-shaped box body, characterized in that: horizontal telescopic grooves are symmetrically arranged up and down on both sides of the C-shaped box body, and vertical telescopic grooves are symmetrically arranged on both sides of the back. One end of the horizontally telescopic grooves symmetrically arranged up and down on both sides is communicated with the vertical telescopic grooves and has the same grooving depth. Multiple rows of horizontal one-way locking groove groups and multiple rows of vertical one-way locking groove groups are respectively communicated and arranged towards the inner side of the box body in the horizontal telescopic grooves and the vertical telescopic grooves symmetrically arranged above the C-shaped box body and on both sides of the back. At the same time, multiple rows of horizontal two-way locking groove groups are communicated towards the upper and lower sides of the box body in the horizontal telescopic grooves symmetrically arranged at the bottom of the C-shaped box body. C-shaped telescopic plates are symmetrically installed in the upper, lower parts of the horizontal telescopic grooves and the vertical telescopic grooves on both sides. Multiple groups of one-way locking mechanisms are respectively installed above and on the back of the C-shaped telescopic plates, and multiple groups of two-way locking mechanisms are installed at the bottom. Telescopic door mechanisms that can be locked and telescoped are symmetrically installed on the open sides of the C-shaped telescopic plates on both sides.

[0008] Further, the horizontal one-way locking groove group is composed of a plurality of inner horizontal locking grooves, the vertical one-way locking groove group is composed of a plurality of inner vertical locking grooves, and the horizontal two-way locking groove group at the bottom of the C-shaped box body is composed of a plurality of inner horizontal locking grooves and corresponding outer horizontal locking grooves. The inner horizontal locking grooves, the inner vertical locking grooves and the outer horizontal locking grooves are arranged in parallel at equal intervals. At the same time, multiple groups of the one-way locking mechanisms installed above and on the back of the C-shaped telescopic plate are respectively in one-to-one correspondence and locking relationship with multiple rows of the horizontal one-way locking groove group and multiple rows of the vertical one-way locking groove group.

[0009] Furthermore, the one-way locking mechanism includes a first fixed rotating shaft, a one-way locking block with a semi-circular movable end, and a first knob. Above and on the back of the C-shaped telescopic plate, there are multiple rows of upper locking block rotating groove groups and back locking block rotating groove groups respectively. The upper locking block rotating groove group is composed of a plurality of upper locking block rotating grooves, and the back locking block rotating groove group is composed of a plurality of back locking block rotating grooves. The upper locking block rotating grooves correspond to the inner horizontal locking grooves one by one, and the back locking block rotating grooves correspond to the inner vertical locking grooves one by one. At the same time, the first fixed rotating shaft is installed through both the upper locking block rotating groove group and the back locking block rotating groove group. On the axial surface of the first fixed rotating shaft, a plurality of one-way locking blocks with semi-circular movable ends are fixedly installed in parallel. And the installation positions of the multiple one-way locking blocks are respectively located in the upper locking block rotating grooves and the back locking block rotating grooves. At the same time, the length of the one-way locking block is greater than the depth of the upper locking block rotating groove and the back locking block rotating groove and less than half of their widths. A side sealing plate is fixedly installed at the outer end of the C-shaped telescopic plate. The first fixed rotating shaft passes through the outer side sealing plate and is connected with the first knob. A push-pull ring is fixedly installed on the outer side of the side sealing plate.

[0010] Furthermore, the two-way locking mechanism includes a second fixed rotating shaft, a two-way locking block with semi-circular ends at both ends, and a second knob. At the bottom of the C-shaped telescopic plate, there are multiple rows of lower locking block rotating through groove groups. The lower locking block rotating through groove is composed of a plurality of lower locking block rotating through grooves. And the lower locking block rotating through grooves respectively correspond to the inner horizontal locking grooves and the outer horizontal locking grooves above and below in the horizontal telescopic groove below. On each row of the lower locking block rotating through groove groups on the C-shaped telescopic plate, the second fixed rotating shaft is installed through. At the same time, a plurality of two-way locking blocks with semi-circular ends at both ends are fixedly installed in parallel on the second fixed rotating shaft. And the length of the two-way locking block is greater than the depth of the lower locking block rotating through groove and less than the width of the lower locking block rotating through groove.

[0011] Further, the telescopic door mechanism includes 2 groups of symmetrically installed telescopic door groups and multiple groups of lock card mechanisms installed on the telescopic door groups.

[0012] Further, the retractable door group includes a C-shaped door frame, a third fixed rotating shaft, and a retractable door inside the outer door frame.

[0013] Furthermore, the outer sides of the C-shaped telescopic plates are symmetrically installed with the C-shaped door frames with openings facing inwards. The C-shaped door frames are fixedly installed with the rotatable third fixed rotating shafts. One side end of the outer door frame is installed on the third fixed rotating shafts. The inner telescopic door is installed inside the outer door frame through symmetrically arranged slideways up and down. Door grooves are symmetrically arranged on the inner side of the opening section of the C-shaped box body. The height of the inner telescopic door is greater than the height between the upper and lower inner sides of the C-shaped box body. The height of the outer door frame is less than the height between the upper and lower planes of the door grooves. The upper and lower ends of the inner telescopic door are symmetrically provided with guide rail bumps installed in the slideways. Multiple door telescopic locking grooves for locking by the locking mechanism are arranged on the guide rail bumps. The distances between the multiple door telescopic locking grooves are respectively the same as the unit locking distances of the horizontal one-way locking groove group and the vertical one-way locking groove group.

[0014] Furthermore, the locking mechanism includes a locking block, a telescopic column, a spring, an anti-retraction block, and a locking button. Locking telescopic slots are symmetrically arranged up and down on the outer door frame outside the slideways. A locking hole is provided through the locking telescopic slots and penetrating the outer door frame. The telescopic column is installed through the locking hole and the locking telescopic slots. The inner side end of the telescopic column is fixedly connected with the locking block with chamfers on the inner side and multiple sides. The spring is installed on the telescopic column inside the locking block. The outer side end of the telescopic column is fixedly connected with the locking button. The anti-retraction block that coincides with the protruding part of the locking hole is fixedly installed on the telescopic column inside the locking button.

[0015] Furthermore, door locks for locking the box body are installed at the inner side ends of the symmetrically installed outer door frames on both sides. Multiple groups of first reinforcing rib grooves and second reinforcing rib grooves are respectively arranged in the horizontal telescopic slots and the vertical telescopic slots. Multiple groups of first reinforcing ribs and second reinforcing ribs are respectively arranged on the upper, lower, and back inner sides of the C-shaped telescopic plate in one-to-one correspondence. Multiple equipment installation reserved holes for equipment installation are arranged on the second reinforcing ribs. A C-shaped ridge is formed inside the C-shaped box body between the inner side surfaces of the horizontal telescopic slots and the vertical telescopic slots on both sides. The width of the C-shaped ridge is not less than 1 / 5 of the width of the C-shaped box body.

[0016] A working method of a retractable multi-purpose distribution box includes the following steps:

[0017] S1. Stretching step: Rotate the first fixed rotating shaft by driving a plurality of the first knobs above and on one side of the side sealing plate, with a rotation angle of 90 degrees. The first fixed rotating shaft drives a plurality of one-way locking blocks to rotate and retract from a plurality of the inner horizontal locking grooves and a plurality of the inner vertical locking grooves into the upper locking block rotating groove and the back locking block rotating groove respectively.

[0018] S2. Rotate a plurality of the second knobs below the side sealing plate by 90 degrees. The second knobs drive the second fixed rotating shaft to rotate, and the second fixed rotating shaft drives a plurality of two-way locking blocks to rotate, so that the upper and lower ends thereof retract from the inner horizontal locking groove and the outer horizontal locking groove into the lower locking block rotating through groove.

[0019] S3. Pull out a plurality of the lock buttons on the outer door frame. The lock buttons drive the telescopic column to move outward. During this process, the anti-retraction block on the telescopic column slides out of the lock-shaped jack, and at the same time, the lock catch block at the inner end of the telescopic column slides out of the door telescopic locking groove and compresses the spring.

[0020] S4. After pulling the lock catch block out of the door telescopic locking groove, rotate the lock button to drive the telescopic column to rotate. At this time, after the anti-retraction block rotates, it is stuck on the outer door frame panel outside the lock-shaped jack, realizing the unlocking action of the locking mechanism included in the telescopic door mechanism.

[0021] S5. At this time, control the internal use space of the box body or adjust the occupied space outside by pulling the push-pull rings on the outer sides of the two side sealing plates. During this process, the door lock is in the locked state.

[0022] S7. After adjusting the telescopic size of the box body, realize the locking action of the C-shaped telescopic plate by rotating a plurality of the first knobs and a plurality of the second knobs. At the same time, rotate the lock button so that the anti-retraction block rotates and aligns with the groove of the convex part of the lock-shaped jack. Due to the push of the spring, the lock catch block is inserted into the door telescopic locking groove, the telescopic column moves inward, and the anti-retraction block is inserted into the groove of the convex part of the lock-shaped jack, realizing the locking action of the telescopic door mechanism.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] (1) In the present invention, a C-shaped box body is provided, with horizontal telescopic grooves symmetrically arranged on the upper and lower sides of both sides of the C-shaped box body, and vertical telescopic grooves symmetrically arranged on the back. The upper and lower horizontal telescopic grooves on both sides are connected to the vertical telescopic grooves, and the upper horizontal telescopic grooves on both sides are respectively connected to multiple rows of horizontal one-way locking groove groups and multiple rows of vertical one-way locking groove groups arranged towards the inner side of the box body. At the same time, the lower horizontal telescopic groove is connected to multiple rows of horizontal two-way locking groove groups towards the upper and lower sides of the box body. C-shaped telescopic plates that can be telescopically slid are symmetrically installed on both sides of the C-shaped box body. Multiple groups of one-way locking mechanisms are installed above and on the back of the C-shaped telescopic plate, and multiple groups of two-way locking mechanisms are installed at the bottom to control the telescopic movement of the C-shaped telescopic plate. By rotating the multiple first knobs and multiple second knobs included in the multiple groups of one-way locking mechanisms and multiple groups of two-way locking mechanisms by 90 degrees, the unlocking actions of the one-way locking blocks and two-way locking blocks on the first knobs and second knobs are respectively controlled. At the same time, telescopic door mechanisms that can be locked and telescoped are symmetrically installed on the open sides of the C-shaped telescopic plates on both sides. By pulling out the lock button, the lock catch block at the inner end of the telescopic column slides out from the door telescopic locking groove on the inner telescopic door, and then rotating the lock button drives the telescopic column to rotate, so that the anti-indentation block located on the telescopic column catches the panel of the outer door frame outside the lock-type jack, realizing the unlocked state of the telescopic door mechanism. Finally, by pulling out or pushing the push-pull rings on the outer sides of the side sealing plates on both sides outward or inward, the occupied space of the box body or the installation controls of internal equipment are controlled. This process is simple and easy to operate to control the size of the box body.

[0025] (2) In the present invention, multiple equipment installation reserved holes for equipment installation are provided on the second reinforcing ribs on the inner side of the back of the C-shaped telescopic plate. Equipment can be installed on the equipment installation reserved holes after stretching. At the same time, since the lower lock block rotation through grooves included in the multiple rows of lower lock block rotation through groove groups penetrate the bottom plate of the C-shaped telescopic plate, the bottom of the C-shaped telescopic plate extending out of the horizontal telescopic groove after stretching can also play a role in ventilation and heat dissipation. At the same time, to ensure the overall bonding strength of the box body, a C-shaped ridge is formed inside the C-shaped box body between the inner sides of the horizontal telescopic grooves and vertical telescopic grooves on both sides. The width of the C-shaped ridge is not less than 1 / 5 of the width of the C-shaped box body, ensuring the telescopic performance while guaranteeing the overall bonding strength of the box body. Brief Description of the Drawings

[0026] Figure 1 is a three-dimensional view provided by an embodiment of the present invention;

[0027] Figure 2 is a stretched three-dimensional view provided by an embodiment of the present invention;

[0028] Figure 3 is a three-dimensional view of the C-shaped box body provided by an embodiment of the present invention;

[0029] Figure 4 is a half-section three-dimensional view of the C-shaped box body provided by an embodiment of the present invention Figure 1 ;

[0030] Figure 5 The half-section three-dimensional view of the C-shaped box body provided by the embodiment of the present invention Figure 2 ;

[0031] Figure 6 The three-dimensional view of the C-shaped telescopic plate and the side sealing plate provided by the embodiment of the present invention;

[0032] Figure 7 The three-dimensional view of removing the telescopic door mechanism provided by the embodiment of the present invention;

[0033] Figure 8 The three-dimensional view of the one-way locking mechanism and the two-way locking mechanism provided by the embodiment of the present invention;

[0034] Figure 9 The three-dimensional view of the telescopic door mechanism provided by the embodiment of the present invention;

[0035] Figure 10 The separated three-dimensional view of the telescopic door mechanism provided by the embodiment of the present invention;

[0036] Figure 11 The partial-section three-dimensional view of the outer door frame provided by the embodiment of the present invention;

[0037] Figure 12 The partial three-dimensional view of the outer door frame provided by the embodiment of the present invention.

[0038] In the figure: 1. C-shaped box body; 2. Horizontal telescopic groove; 3. First reinforcing rib groove; 4. Inner horizontal locking groove; 5. Inner vertical locking groove; 6. Vertical telescopic groove; 7. Second reinforcing rib groove; 8. Outer horizontal locking groove; 9. Door groove; 10. C-shaped ridge; 11. C-shaped telescopic plate; 12. Side sealing plate; 13. First reinforcing rib; 14. Second reinforcing rib; 15. Equipment installation reserved hole; 16. Upper lock block rotation groove; 1601. Back lock block rotation groove; 17. First fixed rotating shaft; 18. One-way lock block; 19. First knob; 20. Lower lock block rotation through groove; 21. Second fixed rotating shaft; 22. Two-way lock block; 23. Second knob; 24. Push-pull ring; 25. C-shaped door frame; 26. Third fixed rotating shaft; 27. Outer door frame; 28. Slideway; 29. Inner telescopic door; 30. Guide rail convex block; 31. Door telescopic locking groove; 32. Lock type jack; 33. Lock card telescopic groove; 34. Lock card block; 35. Telescopic column; 36. Spring; 37. Anti-retraction block; 38. Lock button; 39. Door lock. Detailed implementation manners

[0039] The following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the present invention, and are not used to limit the present invention.

[0040] As Figures 1-12As shown in the figure, a retractable multi-purpose distribution box includes a C-shaped box body 1. Horizontal telescopic grooves 2 are symmetrically arranged up and down on both sides of the C-shaped box body 1. At the same time, vertical telescopic grooves 6 are symmetrically arranged on both sides of the back. One end of the horizontally telescopic grooves 2 symmetrically arranged up and down on both sides is connected to the vertical telescopic grooves 6 and has the same grooving depth. The horizontally telescopic grooves 2 symmetrically arranged above the C-shaped box body 1 and on both sides of the back are respectively connected to multiple rows of horizontal one-way locking groove groups arranged towards the inside of the box body, and the vertical telescopic grooves 6 are respectively connected to multiple rows of vertical one-way locking groove groups. At the same time, the horizontally telescopic grooves 2 symmetrically arranged at the bottom of the C-shaped box body 1 are connected to multiple rows of horizontal two-way locking groove groups facing the upper and lower sides of the box body. C-shaped telescopic plates 11 are symmetrically installed in the upper and lower horizontal telescopic grooves 2 and the vertical telescopic grooves 6 on both sides. Multiple groups of one-way locking mechanisms are installed above and on the back of the C-shaped telescopic plates 11 respectively. At the same time, multiple groups of two-way locking mechanisms are installed at the bottom. Telescopic door mechanisms that can be locked and telescoped are symmetrically installed on the open sides of the C-shaped telescopic plates 11 on both sides. Through the above structure, the function of controlling the C-shaped telescopic plates on both sides of the distribution box to expand and contract along the horizontal telescopic grooves 2 and vertical telescopic grooves 6 provided on the C-shaped box body is realized. At the same time, by setting multiple groups of one-way locking mechanisms and multiple groups of two-way locking mechanisms, it is ensured that the distribution box can maintain a good shape after expansion and contraction, and there will be no accidental sliding phenomenon, greatly increasing the stability of the overall structure of the distribution box and improving the multi-purpose practicality of the distribution box.

[0041] Telescopic principle:.

[0042] By setting a C-shaped box body 1, horizontally telescopic grooves 2 are symmetrically arranged up and down on both sides of the C-shaped box body 1, and vertically telescopic grooves 6 are symmetrically arranged on the back. The upper and lower horizontal telescopic grooves 2 on both sides are communicated with the vertical telescopic grooves 6. The upper horizontal telescopic grooves 2 on both sides are communicated with the vertical telescopic grooves 6 respectively and are communicated with multiple rows of horizontal one-way locking groove groups and multiple rows of vertical one-way locking groove groups arranged towards the inner side of the box body. At the same time, multiple rows of horizontal two-way locking groove groups towards the upper and lower sides of the box body are communicated in the lower horizontal telescopic groove 2. C-shaped telescopic plates 11 that can be telescopically slid are symmetrically installed on both sides of the C-shaped box body 1. Multiple groups of one-way locking mechanisms are installed above and on the back of the C-shaped telescopic plate 11, and multiple groups of two-way locking mechanisms are installed at the bottom, realizing the action of controlling the telescopic movement of the C-shaped telescopic plate 11. By rotating multiple first knobs 19 and multiple second knobs 23 included in multiple groups of one-way locking mechanisms and multiple groups of two-way locking mechanisms to 90 degrees, the unlocking actions of the one-way locking blocks 18 and two-way locking blocks 22 on the first knobs 19 and the second knobs 23 are respectively controlled. At the same time, telescopic door mechanisms that can be locked and telescoped are symmetrically installed on the opening sides of the two C-shaped telescopic plates 11. By pulling out the locking knob 38, the locking block 34 at the inner end of the telescopic column 35 slides out from the door telescopic locking groove 31 on the inner telescopic door 29, and then rotating the locking knob 38 drives the telescopic column 35 to rotate, so that the anti-indentation block 37 on the telescopic column catches the panel of the outer door frame 27 outside the lock-type jack 32, realizing the unlocked state of the telescopic door mechanism. Finally, by pulling out or pushing the push-pull rings 24 on the outer sides of the two side sealing plates 12 outward or inward, the occupied space of the box body or the installation control of internal equipment is controlled. This process is simple and easy to operate to realize the control of the size of the box body.

[0043] As Figures 3-6 shown, the horizontal one-way locking groove group is composed of multiple inner horizontal locking grooves 4, the vertical one-way locking groove group is composed of multiple inner vertical locking grooves 5, and the horizontal two-way locking groove group at the bottom of the C-shaped box body 1 is composed of multiple inner horizontal locking grooves 4 and the corresponding outer horizontal locking grooves 8. The inner horizontal locking grooves 4, the inner vertical locking grooves 5, and the outer horizontal locking grooves 8 are arranged in parallel at equal intervals. At the same time, multiple groups of one-way locking mechanisms installed above and on the back of the C-shaped telescopic plate 11 are respectively installed in a locking relationship corresponding to multiple rows of horizontal one-way locking groove groups and multiple rows of vertical one-way locking groove groups. The multiple inner horizontal locking grooves 4 are parallel to the multiple inner vertical locking grooves 5 and have equal spacing, preventing the situation of misalignment and inability to lock during the stretching process. At the same time, multiple groups of one-way locking mechanisms are respectively corresponding to multiple rows of horizontal one-way locking groove groups and multiple rows of vertical one-way locking groove groups one by one to ensure the structural coincidence during the stretching and locking process and avoid the situation of local resistance.

[0044] As Figures 3-8As shown in the figure, the one-way locking mechanism includes a first fixed rotating shaft 17, a one-way locking block 18 with a semi-circular movable end, and a first knob 19. Multiple rows of upper locking block rotating groove groups and back locking block rotating groove groups are respectively provided above and at the back of the C-shaped telescopic plate 11. The upper locking block rotating groove group consists of multiple upper locking block rotating grooves 16, and the back locking block rotating groove group consists of multiple back locking block rotating grooves 1601. The upper locking block rotating grooves 16 correspond one-to-one with the inner horizontal locking grooves 4, and the back locking block rotating grooves 1601 correspond one-to-one with the inner vertical locking grooves 5. At the same time, a first fixed rotating shaft 17 is installed through both the upper locking block rotating groove group and the back locking block rotating groove group. Axially parallel multiple one-way locking blocks 18 with semi-circular movable ends are fixedly installed on the axial surface of the first fixed rotating shaft 17, and the installation positions of the multiple one-way locking blocks 18 are respectively located in the upper locking block rotating grooves 16 and the back locking block rotating grooves 1601. At the same time, the length of the one-way locking block 18 is greater than the depth of the upper locking block rotating groove 16 and the back locking block rotating groove 1601 and less than half of their widths. A side sealing plate 12 is fixedly installed at the outer end of the C-shaped telescopic plate 11. The first fixed rotating shaft 17 passes through the outer side sealing plate 12 and is connected to a first knob 19. A push-pull ring 24 is fixedly installed on the outer side of the side sealing plate 12. By setting the push-pull ring 24, it is convenient to realize the push-pull and retraction actions. At the same time, the first knob 19 is set in a symmetric angular shape on the outside to facilitate identifying the locking state and controlling the rotation angle.

[0045] As Figure 3 , 5 , 6 and 8 show that the two-way locking mechanism includes a second fixed rotating shaft 21, a two-way locking block 22 with semi-circular ends at both ends, and a second knob 23. Multiple rows of lower locking block rotating through groove groups are provided at the bottom of the C-shaped telescopic plate 11. The lower locking block rotating through grooves are composed of multiple lower locking block rotating through grooves 20, and the lower locking block rotating through grooves 20 respectively correspond one-to-one with the inner horizontal locking grooves 4 and the outer horizontal locking grooves 8 above and below in the lower horizontal telescopic groove 2. A second fixed rotating shaft 21 is installed through each row of lower locking block rotating through groove groups on the C-shaped telescopic plate 11. At the same time, multiple two-way locking blocks 22 with semi-circular ends at both ends are evenly and fixedly installed in parallel on the second fixed rotating shaft 21. The length of the two-way locking block 22 is greater than the depth of the lower locking block rotating through groove 20 and the length is less than the width of the lower locking block rotating through groove 20. The two ends of the two-way locking block 22 are set in a semi-circular shape to facilitate insertion into the inner horizontal locking groove 4 and the outer horizontal locking groove 8, and at the same time, control the length to prevent interference or size mismatch during rotation, and at the same time, it can play the role of locking and limiting.

[0046] As Figure 9 , 10 As shown in the figure, the retractable door mechanism includes 2 groups of symmetrically installed retractable door groups and multiple groups of lock card mechanisms installed on the retractable door groups. By symmetrically setting the retractable door groups and cooperating with the C-shaped telescopic plate 11 for telescoping, it is ensured that the door can match the locking function after telescoping.

[0047] As Figure 9, 10 As shown in the figure, the retractable door group includes a C-shaped door frame 25, a third fixed rotating shaft 26, an outer door frame 27, and an inner retractable door 29. The outer door frame 27 can be made of high-strength alloy material to ensure strength and avoid deformation over time, which may affect the retractable effect.

[0048] As Figure 2 , 3 , 9, 10 shown, on the outer side end of the C-shaped telescopic plate 11, C-shaped door frames 25 with openings facing inwards are symmetrically installed. A rotatable third fixed rotating shaft 26 is fixedly installed on the C-shaped door frame 25. One side end of the outer door frame 27 is installed on the third fixed rotating shaft 26. The inner retractable door 29 is installed inside the outer door frame 27 through symmetrically arranged slideways 28 up and down. On the inner side of the opening section of the C-shaped box body 1, door grooves 9 are symmetrically arranged. The height of the inner retractable door 29 is greater than the height between the upper and lower inner sides of the C-shaped box body 1. The height of the outer door frame 27 is less than the height between the upper and lower planes of the upper and lower door grooves 9. Guide rail protrusions 30 are symmetrically arranged at the upper and lower ends of the inner retractable door 29 and installed in the slideways 28. Multiple door retractable locking grooves 31 for locking by the locking mechanism are provided on the guide rail protrusions 30. The distances between the multiple door retractable locking grooves 31 are the same as the unit locking distances of the horizontal one-way locking groove group and the vertical one-way locking groove group.

[0049] As Figure 11 , 12 As shown in the figure, the locking mechanism includes a locking block 34, a telescopic column 35, a spring 36, an anti-retraction block 37, and a locking button 38. Locking telescopic slots 33 are symmetrically arranged up and down on the outer door frame 27 outside the slideways 28. A lock-shaped insertion hole 32 is provided through the locking telescopic slots 33 and penetrates the outer door frame 27. The telescopic column 35 is installed through the lock-shaped insertion hole 32 and the locking telescopic slots 33. The inner side end of the telescopic column 35 is fixedly connected with a locking block 34 with chamfers on the inner side. At the same time, a spring 36 is installed on the telescopic column 35 inside the locking block 34. The outer side end of the telescopic column 35 is fixedly connected with a locking button 38. An anti-retraction block 37 that coincides with the protruding part of the lock-shaped insertion hole 32 is fixedly installed on the telescopic column 35 inside the locking button 38. By pulling out the locking button 38 outwards, the telescopic column 35 is driven to move outwards, so that the locking block 34 at the inner side end of the telescopic column 35 slides out of the door retractable locking groove 31. In this process, the locking block 34 compresses the spring 36, and then by rotating the locking button 38, the telescopic column 35 is driven to rotate. After the telescopic column 35 drives the anti-retraction block 37 to rotate, it is stuck on the panel of the outer door frame 27 outside the groove of the protruding part of the lock-shaped insertion hole 32.

[0050] As Figure 2 , 4As shown in Figures 6 and 9, the inner ends of the outer door frames 27 symmetrically installed on both sides are equipped with door locks 39 for locking the box body. Multiple groups of first reinforcing rib grooves 3 and second reinforcing rib grooves 7 are respectively provided in the horizontal telescopic grooves 2 and vertical telescopic grooves 6. At the same time, multiple groups of first reinforcing ribs 13 and second reinforcing ribs 14 are respectively provided on the upper, lower inner sides and the back inner side of the C-shaped telescopic plate 11 in one-to-one correspondence. At the same time, multiple equipment installation reserved holes 15 for equipment installation are provided on the second reinforcing ribs 14. A C-shaped ridge 10 is formed inside the C-shaped box body 1 between the inner sides of the horizontal telescopic grooves 2 and vertical telescopic grooves 6 on both sides. The width of the C-shaped ridge 10 is not less than 1 / 5 of the width of the C-shaped box body 1, ensuring the telescopic performance while guaranteeing the overall bonding strength of the box body.

[0051] The working method of a retractable multi-purpose distribution box proposed by the present invention:

[0052] S1. Tensile step: By rotating multiple first knobs 19 above and on one side of the side sealing plate 12, the first fixed rotating shaft 17 is driven to rotate by 90 degrees. The first fixed rotating shaft 17 drives multiple one-way lock blocks 18 to rotate and retract from multiple inner horizontal locking grooves 4 and multiple inner vertical locking grooves 5 into the upper lock block rotating groove 16 and the back lock block rotating groove 1601 respectively.

[0053] S2. By rotating multiple second knobs 23 below the side sealing plate 12 by 90 degrees, the second fixed rotating shaft 21 is driven to rotate by the second knobs 23. The second fixed rotating shaft 21 drives multiple two-way lock blocks 22 to rotate, so that the upper and lower ends thereof retract from the inner horizontal locking groove 4 and the outer horizontal locking groove 8 into the lower lock block rotating through groove 20;

[0054] S3. By pulling out multiple lock buttons 38 on the outer door frame 27, the lock buttons 38 drive the telescopic columns 35 to move outward. During this process, the anti-retraction blocks 37 on the telescopic columns 35 slide out of the lock-type jacks 32, and at the same time, the lock catch blocks 34 at the inner ends of the telescopic columns 35 slide out of the door telescopic locking grooves 31 and compress the springs 36;

[0055] S4. After pulling the lock catch block 34 out of the door telescopic locking groove 31, rotate the lock button 38 to drive the telescopic column 35 to rotate. At this time, after the anti-retraction block 37 rotates, it is stuck on the panel of the outer door frame 27 outside the lock-type jack 32, realizing the unlocking action of the locking mechanism included in the telescopic door mechanism;

[0056] S5. At this time, by pulling the push-pull rings 24 on the outer sides of the two side sealing plates 12, the internal use space of the box body is controlled or the external occupied space is adjusted. During this process, the door lock 39 is in the locked state;

[0057] S7. After adjusting the telescopic dimension of the box body, the locking action of the C-shaped telescopic plate 11 is achieved by rotating a plurality of first knobs 19 and a plurality of second knobs 23. At the same time, by rotating the locking knob 38, the anti-retraction block 37 rotates and aligns with the groove of the convex part of the locking jack 32. Due to the push of the spring 36, the locking block 34 is inserted into the door telescopic locking groove 31, the telescopic column 35 moves inward, and the anti-retraction block 37 is inserted into the groove of the convex part of the locking jack 32, realizing the locking action of the telescopic door mechanism.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic multi-purpose distribution box, including a C-shaped box body, characterized in that: Horizontal telescopic grooves are symmetrically arranged up and down on both sides of the C-shaped box body, and vertical telescopic grooves are symmetrically arranged on both sides of the back. One end of the horizontally telescopic grooves symmetrically arranged up and down on both sides communicates with the vertical telescopic grooves and has the same grooving depth. Multiple rows of horizontal one-way locking groove groups and multiple rows of vertical one-way locking groove groups communicating towards the inner side of the box body are respectively arranged in the horizontal telescopic grooves and vertical telescopic grooves symmetrically arranged above the C-shaped box body and on both sides of the back. At the same time, multiple rows of horizontal two-way locking groove groups communicating towards the upper and lower sides of the box body are arranged in the horizontal telescopic grooves symmetrically arranged at the bottom of the C-shaped box body. C-shaped telescopic plates are symmetrically installed in the upper, lower, left and right horizontal telescopic grooves and vertical telescopic grooves on both sides. Multiple groups of one-way locking mechanisms are installed above and on the back of the C-shaped telescopic plate, and multiple groups of two-way locking mechanisms are installed at the bottom. Telescopic door mechanisms that can be locked and telescoped are symmetrically installed on the open sides of the C-shaped telescopic plates on both sides; The horizontal one-way locking groove group is composed of multiple inner horizontal locking grooves, the vertical one-way locking groove group is composed of multiple inner vertical locking grooves, and the horizontal two-way locking groove group at the bottom of the C-shaped box body is composed of multiple inner horizontal locking grooves and corresponding outer horizontal locking grooves. The inner horizontal locking grooves, the inner vertical locking grooves and the outer horizontal locking grooves are arranged in parallel at equal intervals. At the same time, multiple groups of the one-way locking mechanisms installed above and on the back of the C-shaped telescopic plate are respectively installed in a locking relationship corresponding to multiple rows of the horizontal one-way locking groove group and multiple rows of vertical one-way locking groove groups; The one-way locking mechanism includes a first fixed rotating shaft, a one-way locking block with a semicircular movable end and a first knob. Multiple rows of upper locking block rotating groove groups and back locking block rotating groove groups are respectively arranged above and on the back of the C-shaped telescopic plate. The upper locking block rotating groove group is composed of multiple upper locking block rotating grooves, and the back locking block rotating groove group is composed of multiple back locking block rotating grooves. The upper locking block rotating grooves correspond to the inner horizontal locking grooves one by one, and the back locking block rotating grooves correspond to the inner vertical locking grooves one by one. At the same time, the first fixed rotating shaft is installed through the upper locking block rotating groove group and the back locking block rotating groove group. Multiple one-way locking blocks with semicircular movable ends are fixedly installed on the axial surface of the first fixed rotating shaft, and the installation positions of the multiple one-way locking blocks are respectively located in the upper locking block rotating grooves and back locking block rotating grooves. At the same time, the length of the one-way locking block is greater than the depth of the upper locking block rotating groove and the back locking block rotating groove and less than half of their widths. A side sealing plate is fixedly installed at the outer end of the C-shaped telescopic plate. The first fixed rotating shaft penetrates the outer side sealing plate and is connected with the first knob, and a push-pull ring is fixedly installed on the outer side of the side sealing plate; The telescopic door mechanism includes 2 groups of symmetrically installed telescopic door groups and multiple groups of lock card mechanisms installed on the telescopic door groups.

2. A telescopic multi-purpose distribution box according to claim 1, characterized in that, The bi-directional locking mechanism includes a second fixed rotating shaft, a bi-directional locking block with semi-circular ends at both ends, and a second knob. A plurality of rows of lower locking block rotation through slots are provided at the bottom of the C-shaped telescopic plate. The lower locking block rotation through slots are composed of a plurality of lower locking block rotation through slots, and the lower locking block rotation through slots respectively correspond to the inner horizontal locking slot and the outer horizontal locking slot located above and below in the lower horizontal telescopic slot. Each row of the lower locking block rotation through slots on the C-shaped telescopic plate is penetrated and installed with the second fixed rotating shaft. At the same time, a plurality of the bi-directional locking blocks with semi-circular ends at both ends are evenly and fixedly installed in parallel on the second fixed rotating shaft, and the length of the bi-directional locking block is greater than the depth of the lower locking block rotation through slot and less than the width of the lower locking block rotation through slot.

3. A retractable multi-purpose distribution box according to claim 2, wherein, the telescopic door group includes a C-shaped door frame, a third fixed rotating shaft, an outer door frame, and an inner telescopic door.

4. A retractable multi-purpose distribution box according to claim 3, wherein, the C-shaped telescopic plates are symmetrically installed with the C-shaped door frames with openings facing inwards at the outer ends. The C-shaped door frames are fixedly installed with the rotatable third fixed rotating shafts. One end of the outer door frame is installed on the third fixed rotating shafts. The inner telescopic door is installed on the inner side of the outer door frame through symmetrically arranged slideways up and down. Door grooves are symmetrically arranged on the inner side of the opening section of the C-shaped box body. The height of the inner telescopic door is greater than the height of the inner side surface of the C-shaped box body up and down. The height of the outer door frame is less than the height between the upper and lower planes of the door grooves. Guide rail protrusions are symmetrically arranged at the upper and lower ends of the inner telescopic door and installed in the slideways. A plurality of door telescopic locking slots for locking by the locking mechanism are provided on the guide rail protrusions. The distances between the plurality of door telescopic locking slots are the same as the unit locking distances of the horizontal one-way locking slot group and the vertical one-way locking slot group.

5. A retractable multi-purpose distribution box according to claim 4, wherein, the locking mechanism includes a locking block, a telescopic column, a spring, an anti-retraction block, and a locking knob. Locking telescopic slots are symmetrically arranged up and down on the outer door frame outside the slideways. A locking hole is provided to connect the locking telescopic slots and penetrate the outer door frame. The telescopic column is penetrated and installed in the locking hole and the locking telescopic slots. The inner end of the telescopic column is fixedly connected with the locking block with chamfers on the inner side with multiple sides. At the same time, the spring is installed on the telescopic column inside the locking block. The outer end of the telescopic column is fixedly connected with the locking knob. The anti-retraction block that coincides with the protruding part of the locking hole is fixedly installed on the telescopic column inside the locking knob.

6. A retractable multi-purpose distribution box according to claim 5, wherein, On the inner sides of the outer door frames symmetrically installed on both sides, door locks for locking the box body are installed. Multiple groups of first reinforcing rib grooves and second reinforcing rib grooves are respectively provided in the horizontal telescopic grooves and the vertical telescopic grooves. At the same time, multiple groups of first reinforcing ribs and second reinforcing ribs are respectively provided on the upper and lower inner sides and the back inner side of the C-shaped telescopic plate in one-to-one correspondence. At the same time, multiple equipment installation reserved holes for equipment installation are provided on the second reinforcing ribs. A C-shaped ridge is formed in the C-shaped box body between the inner side surfaces of the horizontal telescopic grooves and the vertical telescopic grooves on both sides. The width of the C-shaped ridge is not less than 1 / 5 of the width of the C-shaped box body.

7. The working method of a retractable multi-purpose distribution box according to claim 6, characterized in that it includes the following steps: S1. Stretching step: By rotating multiple first knobs above and on one side of the side sealing plate, the first fixed rotating shaft is driven to rotate by 90 degrees. The first fixed rotating shaft drives multiple one-way locking blocks to rotate and retract from multiple inner horizontal locking grooves and multiple inner vertical locking grooves into the upper locking block rotating groove and the back locking block rotating groove respectively; S2. By rotating multiple second knobs below the side sealing plate by 90 degrees, the second fixed rotating shaft is driven to rotate by the second knobs. The second fixed rotating shaft drives multiple two-way locking blocks to rotate, and the upper and lower ends thereof retract from the inner horizontal locking groove and the outer horizontal locking groove into the lower locking block rotating through groove; S3. By pulling out multiple lock buttons on the outer door frame, the lock buttons drive the telescopic columns to move outward. During this process, the anti-retraction blocks on the telescopic columns slide out of the lock-type insertion holes, and at the same time, the lock catch blocks at the inner ends of the telescopic columns slide out of the door telescopic locking grooves and compress the springs; S4. After pulling the lock catch block out of the door telescopic locking groove, rotate the lock button to drive the telescopic column to rotate. At this time, after the anti-retraction block rotates, it is stuck on the outer door frame panel outside the lock-type insertion hole, realizing the unlocking action of the locking mechanism included in the telescopic door mechanism; S5. At this time, by pulling the push-pull rings on the outer sides of the side sealing plates on both sides, the internal use space of the box body is controlled or the occupied space outside is adjusted. During this process, the door lock is in the locked state; S7. After adjusting the telescopic size of the box body, the locking action of the C-shaped telescopic plate is realized by rotating multiple first knobs and multiple second knobs. At the same time, by rotating the lock button, the anti-retraction block rotates and aligns with the groove of the protruding part of the lock-type insertion hole. Due to the spring push, the lock catch block is inserted into the door telescopic locking groove, the telescopic column moves inward, and the anti-retraction block is inserted into the groove of the protruding part of the lock-type insertion hole, realizing the locking action of the telescopic door mechanism.

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