Closed cable trough box

Abstract

This invention discloses a closed cable tray, relating to the field of electrical appliance technology. The key technical feature is that it includes a tray body and a cover detachably mounted on the tray body. One end of each side plate of the tray body has a slot, and the other end has a first cavity. A locking assembly adapted to the slot is disposed inside the first cavity. The locking assembly includes a locking arm rotatably mounted within the first cavity and a self-locking unit mounted on the tray body. The locking arm includes a movable rod for engaging with the slot and a fixed rod, one end of which is rotatably mounted on the inner wall of the first cavity, and the other end of which is movably sleeved with the movable rod. This invention, by providing a locking assembly and slots that can be engaged and interlocked on the side plates of the tray body, allows for assembly of the entire tray solely through the engagement of these two components, significantly improving the installation efficiency of the entire tray. Simultaneously, the self-locking unit provides overall locking, ensuring high stability after assembly.

Description

Technical Field

[0001] The invention relates to the technical field of electrical appliances, in particular to a closed cable trough box. Background Art

[0002] Cable trough boxes (also called cable bridges or cable trays) are electrical system appliances used to support and protect wires and cables. Their main function is to place and fix cables and provide waterproof and fireproof protection for cables using a closed structure. Since the trough box is adapted to the length of the cable, it is assembled as a whole through single-length connectable units. The conventional assembly method is to drill bolt holes on the side panels of the trough box, and then bolt them through a connecting plate that bridges the two units. This assembly method is time-consuming and labor-intensive, which makes the overall installation efficiency of the trough box very low.

[0003] In view of this, the present invention is designed to solve the above-mentioned problems.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned shortcomings and provide a closed cable trough box.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A closed cable trough box comprises a trough box body and a box cover detachably arranged on the trough box body, wherein the two side panels of the trough box body are provided with a card slot at one end and a first cavity at the other end, and a locking assembly adapted to the card slot is arranged inside the first cavity; the locking assembly comprises a locking arm rotatably arranged in the first cavity and a self-locking unit arranged on the trough box body, the locking arm comprises a movable rod for buckling with the card slot and a fixed rod with one end rotatably arranged on the inner wall of the first cavity and the other end movably sleeved with the movable rod; the self-locking unit is used for relative locking between the movable rod and the fixed rod.

[0008] Furthermore, the slot includes a second cavity groove opened on the slot box body, an arc-shaped slide groove opened on the second cavity groove close to the inner side wall of the slot box body, and an inner buckle socket arranged at the lower end of the arc-shaped slide groove and connected with the arc-shaped slide groove; a buckle rod adapted to the inner buckle socket is arranged at one end of the movable rod away from the fixed rod; during assembly, the movable rod extends out from the fixed rod and slides in the arc-shaped slide groove to the inner buckle socket through the buckle rod, and then the movable rod retracts so that the buckle rod and the inner buckle socket are buckled.

[0009] Furthermore, a movable hole is provided in the fixed rod, and an inner sliding rod is provided at the rear end of the movable rod for limiting telescopic sliding sliding in the fixed rod; a first limiting sliding groove is provided on the movable hole, and a first limiting sliding block is provided at the side end of the inner sliding rod for limiting sliding sliding in the first limiting sliding groove; a first spring is provided between the first limiting sliding block and the side wall of the first limiting sliding groove.

[0010] Furthermore, a first limiting slide cavity connected to the first cavity groove is provided on the lower side thereof, and a pin groove connected to the first limiting slide cavity is provided on the side of the first limiting slide cavity close to the outside of the groove box body, and the self-locking unit includes a lock pin box that limits sliding in the first limiting slide cavity, a limiting clamping plate that limits movement in the second limiting slide cavity provided in the lock pin box, and a second spring arranged between the limiting clamping plate and the inner wall of the second limiting slide cavity; two groups of pin lock plates that slide and abut against the two side walls of the pin groove respectively are arranged on the limiting clamping plate; a fixing block is arranged on the inner slide rod, and a docking interface that is clamped with the end of the lock pin box is formed between the fixing block and the first limiting slide block.

[0011] Furthermore, a third spring is provided on the docking interface, a push block is provided at one end of the third spring away from the docking interface, and a wedge-shaped surface is provided at the lower end of the push block away from the third spring; a second limit slide groove is provided on the side wall of the first limit slide groove, and second limit sliding blocks are provided on both sides of the push block and are engaged and slid in the second limit slide groove.

[0012] Furthermore, the four corners of the bottom surface of the box cover are provided with plug-in plates which are movably connected with the first cavity groove and the second cavity groove respectively and abut against the side of the locking arm. The plug-in plates, the side plates of the box cover and the side plates of the slot box body are provided with threaded holes of the same specifications.

[0013] Furthermore, the upper surface of the box cover is symmetrically provided with a sloped water surface, a vent hole is opened in the middle part thereof, and the box cover is also provided with a sloped water top plate located on the upper side of the vent hole, and side frame plates are provided on both sides of the sloped water top plate; a water groove is formed between the side frame plates and the sloped water top plate, and the cross-sectional diameter of the water groove gradually decreases along the direction from the upper surface of the sloped water top plate to the upper surface of the box cover.

[0014] Furthermore, it also includes a unlocking frame for unlocking the card assembly and the card slot, an embedding groove is formed between the two groups of pin locking plates, and the unlocking frame includes a push rod adapted to be engaged with the embedding groove and a holding rod arranged on the push rod; the slot box body is provided with an L-shaped sliding groove connected to the card pin groove for limiting the sliding of the holding rod, and the upper end of the lock pin box is provided with a through hole for the push rod to movably pass through.

[0015] Compared with the prior art, the beneficial effect of the present solution is as follows: the present invention provides a locking assembly and a card slot that can be engaged on the side panel of the trough box body, so that the whole can be assembled only by the engagement of the two, which greatly improves the installation efficiency of the whole trough box. At the same time, the self-locking unit is used to lock the whole, thereby ensuring high stability after the whole assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 is a front perspective schematic diagram of an embodiment of the present invention;

[0018] Figure 2 is a side perspective schematic diagram of an embodiment of the present invention;

[0019] Figure 3 2 is a schematic diagram of the structure of the trough box body in an embodiment of the present invention;

[0020] Figure 4 Schematic diagram of the splicing state of the trough box body in an embodiment of the present invention;

[0021] Figure 5 is a cross-sectional perspective schematic diagram of a side plate of a trough box body in an embodiment of the present invention;

[0022] Figure 6 is a schematic structural diagram of a locking assembly in an embodiment of the present invention;

[0023] Figure 7 is a schematic diagram of the matching relationship between the locking arm and the lock pin box in an embodiment of the present invention;

[0024] Figure 8 is a cross-sectional perspective schematic diagram of a lock pin box according to an embodiment of the present invention;

[0025] Fig. 9 is a cross-sectional perspective schematic diagram of a locking arm in an embodiment of the present invention;

[0026] Fig.10 It is a structural schematic diagram of a push block in an embodiment of the present invention;

[0027] Fig.11 is a schematic structural diagram of a movable rod in an embodiment of the present invention;

[0028] Fig.12 is a schematic structural diagram of a fixing rod in an embodiment of the present invention;

[0029] Fig.13 1 is a bottom-up stereoscopic schematic diagram of a box cover in an embodiment of the present invention;

[0030] Fig.14 is a cross-sectional schematic diagram of a box cover in an embodiment of the present invention;

[0031] Fig.15 2 is a schematic structural diagram of a lock removing frame according to an embodiment of the present invention;

[0032] Fig.16 The present invention Figure 4 A magnified schematic diagram of center A.

[0033] In the figure: 1, slot box body; 11, box cover; 2, card slot; 21, first cavity slot; 22, locking arm; 23, movable rod; 24, fixed rod; 3, second cavity slot; 31, arc-shaped slide slot; 32, inner buckle slot; 33, buckle rod; 4, movable hole; 41, inner slide rod; 42, first limit slide slot; 43, first limit slider; 44, first spring; 5, first limit slide cavity; 51, card pin slot; 52, lock pin box; 53, second limit slide cavity; 54, limit Card plate; 55, second spring; 56, pin lock plate; 57, fixed block; 58, docking port; 6, third spring; 61, push block; 62, wedge surface; 63, second limit slide groove; 64, second limit slider; 7, plug plate; 71, threaded hole; 8, slope water surface; 81, exhaust hole; 82, slope water top plate; 83, side frame plate; 84, water channel; 9, unlocking frame; 91, embedded groove; 92, push rod; 93, holding rod; 94, L-shaped slide groove; 95, through hole. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0035] like Figure 1-16The closed cable trough box shown in the figure comprises a trough box body 1 and a box cover 11 detachably arranged on the trough box body 1, a card slot 2 is opened at one end of the two side panels of the trough box body 1, and a first cavity 21 is opened at the other end, and a card lock assembly adapted to the card slot 2 is arranged inside the first cavity 21; the card lock assembly comprises a locking arm 22 rotatably arranged in the first cavity 21 and a self-locking unit arranged on the trough box body 1, the locking arm 22 comprises a movable rod 23 for buckling with the card slot 2 and a fixed rod 2 having one end rotatably arranged on the inner wall of the first cavity 21 and the other end movably sleeved with the movable rod 23 4; The self-locking unit is used to relatively lock the movable rod 23 and the fixed rod 24. The splicing of the slot box structure does not utilize the conventional fixing method of the connecting plate and the side plate by connecting bolts. It is mainly through the locking assembly on one side of one group of slot box bodies 1 and the locking slot 2 of another group of slot box bodies 1 that the two groups of slot box bodies 1 are preliminarily connected. Then, the movable rod 23 and the fixed rod 24 in the locking assembly are relatively locked by the self-locking unit, so that the two groups of slot box bodies 1 can maintain high stability. This assembly method is simple and convenient, and can greatly improve the overall assembly efficiency.

[0036] The cam 32 is a block 32 which is adapted to engage with the cam 32 and is adapted to engage with the cam 32 when the cam 32 engages with the cam 32. The first limit slider 43 is movable; a first spring 44 is provided between the first limit slider 43 and the side wall of the first limit slide groove 42. When the locking assembly is engaged with the slot 2, it rotates the locking arm 22 on one group of slot box main bodies 1 to initially overlap the upper edge of the slot 2 on the other group of slot box main bodies 1, and then stretches the movable rod 23 to make it extend a certain length from the fixed rod 24. At this time, the first spring 44 will be compressed and deformed, and then the buckle rod 33 at its front end is stuck in the arc slot 31 and slides, and finally enters the inner buckle slot 32, and then under the elastic action of the first spring 44, it drives the movable rod 23 to be locked back into the fixed rod 24, so that the buckle rod 33 and the inner buckle slot 32 are locked. In this state, the two groups of slot box main bodies 1 are longitudinally locked, that is, the two will not move relative to each other in an upward and downward manner.

[0037] In one embodiment, a first limiting sliding cavity 5 communicating with the first cavity 21 is provided at the lower side thereof, and a latch groove 51 communicating with the first limiting sliding cavity 5 is provided at one side thereof close to the outside of the slot box body 1, and the self-locking unit comprises a lock pin box 52 that slides within the first limiting sliding cavity 5, a limiting clamping plate 54 that moves within the second limiting sliding cavity 53 provided in the lock pin box 52, and a second spring 55 that is arranged between the limiting clamping plate 54 and the inner wall of the second limiting sliding cavity 53; the limiting clamping plate 54 is provided with two groups of pin lock plates 56 that slide against the two side walls of the latch groove 51 respectively; the inner slide rod 41 is provided with a A fixing block 57 is arranged, and a docking interface 58 that is engaged with the end of the lock pin box 52 is formed between the fixing block 57 and the first limiting slide block 43. A third spring 6 is also arranged on the docking interface 58. A push block 61 is arranged at one end of the third spring 6 away from the docking interface 58. A wedge-shaped surface 62 is arranged at the lower end of the push block 61 away from the third spring 6. A second limiting slide groove 63 is opened on the side wall of the first limiting slide groove 42. Second limiting slide blocks 64 that are engaged and slide in the second limiting slide groove 63 are arranged on both sides of the push block 61. When the buckle rod 33 slides in the arc-shaped slide groove 31, the docking interface 58 on the side of the inner slide rod 41 When the lock pin box 52 is in the state of being locked, the locking nut 52 is automatically locked and the locking nut 52 is automatically locked. The pin locking plate 56 is directly opposite to the latch groove 51, and then the limiting latch plate 54 extends out from the second limiting sliding cavity 53 under the action of the second spring 55, so that the two groups of pin locking plates 56 are stuck on both sides of the latch groove 51, so that the movable rod 23 and the fixed rod 24 are relatively locked, that is, the movable rod 23 will not extend out from the fixed rod 24 in this state, and at this time, the two ends of the locking arm 22 are equivalent to being fixed at the docking position of the two groups of slot box bodies 1, and then the slot box bodies 1 are horizontally locked, that is, the two will not move horizontally relative to each other, so that a stable splicing is achieved between the two groups of slot box bodies 1.

[0038] In one embodiment, the four corners of the bottom surface of the box cover 11 are provided with plug plates 7 which are movably plugged into the first cavity 21 and the second cavity 3 respectively and abut against the side of the locking arm 22. The plug plates 7, the side plates of the box cover 11 and the side plates of the slot box body 1 are provided with threaded holes 71 of the same specifications. When the slot box body 1 is spliced, the plug plates 7 on the box cover 11 are inserted into the first cavity 21 and the second cavity 3, so that the box cover 11 is covered on the box cover 11. At this time, the plug plates 7 are abutted against the locking arm 22, so that the locking state is further stabilized, and then they are fixed by screws to complete the overall closure.

[0039] In one embodiment, a sloped water surface 8 is symmetrically provided on the upper surface of the box cover 11, and an exhaust hole 81 is opened in the middle part thereof. The box cover 11 is also provided with a sloped water top plate 82 located on the upper side of the exhaust hole 81, and side frame plates 83 are provided on both sides of the sloped water top plate 82; a water trough 84 is formed between the side frame plates 83 and the sloped water top plate 82, and the cross-sectional diameter of the water trough 84 gradually decreases from the upper surface of the sloped water top plate 82 to the upper surface of the box cover 11. When the trough box is used outdoors and in a rainy environment, rainwater falls on the sloped water top plate 82 and slides along the slopes on both sides thereof, and then enters the water trough 84 and flows toward the sloped water surface 8 on the box cover 11. When it passes through the water trough 84, its flow cross-section is reduced, and then the flow rate becomes faster. At this time, negative pressure appears on the side of the water flow, and then air is drawn from the exhaust hole 81, so that the hot air in the trough box is accelerated to circulate, thereby achieving the effect of heat dissipation and cooling of the internal cables while waterproofing.

[0040] In one embodiment, a disengaging frame 9 for unlocking the card assembly and the card slot 2 is also included, an embedding groove 91 is formed between the two sets of pin lock plates 56, and the disengaging frame 9 includes a push rod 92 adapted to be engaged with the embedding groove 91 and a holding rod 93 arranged on the push rod 92; an L-shaped slide groove 94 connected to the card pin groove 51 for limiting the sliding of the holding rod 93 is opened on the slot box body 1, and a through hole 95 for the push rod 92 to movably pass through is opened on the upper end of the lock pin box 52. When it is necessary to remove the connection between the slot box body 1, the push rod 92 is inserted into the embedding groove 91, and then the limiting card plate 54 is relatively pressed to shrink it into the second limiting sliding cavity 53 until the pin lock plate 56 and the side of the card pin groove 51 are released. The walls are dislocated and disengaged, and then the holding rod 93 is controlled to slide horizontally in the L-shaped slide groove 94, so that the lock pin box 52 moves synchronously, thereby driving the movable rod 23 to extend from the fixed rod 24, so that the snap rod 33 at the front end thereof slides to the bottom position of the arc-shaped slide groove 31, and then the holding rod 93 is controlled to slide longitudinally in the L-shaped slide groove 94, so that the push rod 92 slides upward along the embedded groove 91, and its upper end extends out from the through hole 95 and pushes the side of the inner slide rod 41, thereby lifting and rotating the locking arm 22 as a whole, until the snap rod 33 slides out of the arc-shaped slide groove 31, thereby completing the disassembly work. Through the setting of this structure, the overall disassembly and assembly are simple and fast, and it is easy to use.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A closed cable trough box, comprising a trough box body (1) and a box cover (11) detachably arranged on the trough box body (1), characterized in that: The two side plates of the slot box body (1) are provided with a card slot (2) at one end and a first cavity (21) at the other end, and a card lock assembly adapted to the card slot (2) is arranged inside the first cavity (21); The locking assembly comprises a locking arm (22) rotatably arranged in the first cavity (21) and a self-locking unit arranged on the slot box body (1); the locking arm (22) comprises a movable rod (23) for locking with the slot (2) and a fixed rod (24) with one end rotatably arranged on the inner wall of the first cavity (21) and the other end movably sleeved with the movable rod (23); The self-locking unit is used to relatively lock the movable rod (23) and the fixed rod (24).

2. The closed cable trough box according to claim 1, characterized in that: The card slot (2) comprises a second cavity (3) provided on the slot box body (1), an arc-shaped slide groove (31) provided on the inner side wall of the second cavity (3) close to the slot box body (1), and an inner buckle (32) provided at the lower end of the arc-shaped slide groove (31) and connected thereto; A buckle rod (33) adapted to the inner buckle socket (32) is provided at one end of the movable rod (23) away from the fixed rod (24); During assembly, the movable rod (23) extends from the fixed rod (24) and slides in the arc-shaped slide groove (31) to the inner buckle socket (32) through the buckle rod (33), and then the movable rod (23) retracts so that the buckle rod (33) and the inner buckle socket (32) are buckled.

3. The closed cable trough box according to claim 1 or 2, characterized in that: A movable hole (4) is provided in the fixed rod (24), and an inner sliding rod (41) is provided at the rear end of the movable rod (23) for limiting telescopic sliding in the fixed rod (24); The movable hole (4) is provided with a first limiting sliding groove (42), and the side end of the inner sliding rod (41) is provided with a first limiting sliding block (43) which is limitedly slidable in the first limiting sliding groove (42); A first spring (44) is provided between the first limiting sliding block (43) and the side wall of the first limiting sliding groove (42).

4. The closed cable trough box according to claim 3, characterized in that: A first limiting sliding cavity (5) in communication with the first cavity (21) is provided at the lower side thereof, a latching groove (51) in communication with the first limiting sliding cavity (5) is provided at one side of the first limiting sliding cavity (5) close to the outside of the slot box body (1), and the self-locking unit comprises a lock pin box (52) which is limitedly slidable in the first limiting sliding cavity (5), a limiting clamping plate (54) which is movable in limiting position in a second limiting sliding cavity (53) provided in the lock pin box (52), and a second spring (55) which is arranged between the limiting clamping plate (54) and the inner wall of the second limiting sliding cavity (53); The position limiting clamping plate (54) is provided with two groups of pin locking plates (56) which are respectively slidably engaged with the two side walls of the clamping pin slot (51); A fixing block (57) is provided on the inner slide bar (41), and a docking port (58) for clamping with the end of the lock pin box (52) is formed between the fixing block (57) and the first limit slide block (43).

5. The closed cable trough box according to claim 4, characterized in that: A third spring (6) is also provided on the docking port (58), a push block (61) is provided at one end of the third spring (6) away from the docking port (58), and a wedge-shaped surface (62) is provided at the lower end of the push block (61) away from the third spring (6); A second limiting sliding groove (63) is provided on the side wall of the first limiting sliding groove (42), and second limiting sliding blocks (64) which are engaged and slide in the second limiting sliding groove (63) are provided on both sides of the push block (61).

6. The closed cable trough box according to claim 5, characterized in that: The four corners of the bottom surface of the box cover (11) are provided with plug-in plates (7) which are respectively movably plugged into the first cavity (21) and the second cavity (3) and abut against the side surface of the locking arm (22); the plug-in plates (7), the side plates of the box cover (11) and the side plates of the slot box body (1) are provided with threaded holes (71) of the same specifications.

7. The closed cable trough box according to any one of claims 4 to 6, characterized in that: The upper surface of the box cover (11) is symmetrically provided with a water slope surface (8), the middle part of which is provided with an exhaust hole (81), and the box cover (11) is also provided with a water slope top plate (82) located on the upper side of the exhaust hole (81), and side frame plates (83) are provided on both sides of the water slope top plate (82); A water channel (84) is formed between the side frame plate (83) and the water slope top plate (82), and the cross-sectional diameter of the water channel (84) gradually decreases along the direction from the upper surface of the water slope top plate (82) to the upper surface of the box cover (11).

8. The closed cable trough box according to claim 5, characterized in that: It also includes a unlocking frame (9) for unlocking the card assembly and the card slot (2), an embedding groove (91) is formed between the two sets of the pin lock plates (56), and the unlocking frame (9) includes a push rod (92) adapted to be engaged with the embedding groove (91) and a holding rod (93) arranged on the push rod (92); The slot box body (1) is provided with an L-shaped sliding groove (94) which is connected with the latch groove (51) and is used for limiting the sliding of the holding rod (93). The upper end of the lock pin box (52) is provided with a through hole (95) for the push rod (92) to movably pass through.

Images