Cable protection device

Abstract

The application provides a cable protection device, which comprises a first sleeve provided with a first accommodating cavity, the first sleeve being configured to allow a cable to pass through the first accommodating cavity; a second sleeve provided with a second accommodating cavity, the second sleeve being configured to allow the cable to pass through the second accommodating cavity, and the second sleeve being capable of moving to butt joint connection with the first sleeve along a butt joint direction; a side wall of the first sleeve being provided with a protruding part, and a side wall of the second sleeve being provided with a clamping groove and a clamping part which are distributed in sequence along the butt joint direction; in the case of butt joint connection between the second sleeve and the first sleeve, the first accommodating cavity and the second accommodating cavity are in communication, the protruding part is clamped in the clamping groove, the clamping part is configured to prevent the protruding part from being separated from the clamping groove, and the clamping part is limited to move in a direction away from the side wall of the first sleeve. Through the application, the technical problem that a worker is prone to misoperation to disassemble the cable protection device and touch the cable in the cable protection device, thus causing a high risk of electric shock, is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical assembly, and in particular to a cable protection device. BACKGROUND

[0002] In electrical assembly, a cable sheath is usually used to fix and protect the cable. For example, when multiple cables are connected in butt joint, the cable connection is placed in the cable sheath, which can avoid direct contact of personnel and other equipment with the cable connection, and reduce the risk of electric shock; when the cable needs to be arranged on a vehicle, the cable sheath can be installed on the vehicle body, and the cable passes through the cable sheath, which can limit and protect the cable. The cable sheath is mainly used for fixing and protecting the wire harness in the electrical assembly of new energy vehicles, and has the functions of flame retardation, waterproofness and prevention of damage to the wire harness by external force.

[0003] In order to facilitate assembly, the cable sheath is usually of an assembled structure. When the cable sheath is disassembled, it needs to be operated according to safety specifications. However, in the inspection or maintenance link, in order to facilitate maintenance, the staff may sometimes violate the rules and disassemble the cable sheath due to lax safety awareness, and the cable sheath is disassembled by mistake. After the protection of the cable sheath is lost, it is easy to cause the staff to directly touch the wire and cause electric shock, thus there is a great safety hazard. SUMMARY

[0004] The purpose of the present application is to provide a cable protection device to solve the technical problem that the staff is easy to disassemble the sheath by mistake and touch the cable in the sheath, and there is a great risk of electric shock.

[0005] The above-mentioned purpose of the present application can be realized by using the following technical scheme:

[0006] The present application provides a cable protection device, comprising:

[0007] A first sleeve is provided with a first accommodating cavity for accommodating a cable, and the first sleeve is configured to pass through the cable through the first accommodating cavity;

[0008] A second sleeve is provided with a second accommodating cavity for accommodating a cable, and the second sleeve is configured to pass through the cable through the second accommodating cavity, and the second sleeve can be moved to butt joint connection with the first sleeve in a butt joint direction;

[0009] The side wall of the first sleeve is provided with a protruding part, and the side wall of the second sleeve is provided with a clamping groove and a clamping part which are distributed in sequence in the butt joint direction;

[0010] In the case that the second sleeve is connected to the first sleeve in the butt joint manner, the first accommodating cavity and the second accommodating cavity are at least partially communicated, the protruding part is clamped in the clamping groove, the clamping part is configured to prevent the protruding part from being separated from the clamping groove, and the clamping part is limited to move in the direction away from the side wall of the first sleeve.

[0011] In the preferred embodiment, the first sleeve is configured to be sleeved outside the second sleeve in the reverse direction of the butt joint direction, and the protruding part is arranged on the inner wall of the first sleeve.

[0012] In the preferred embodiment, the second sleeve is configured to be sleeved outside the first sleeve in the butt joint direction, and the protruding part is arranged on the outer wall of the first sleeve.

[0013] In the preferred embodiment, the side wall of the second sleeve is provided with a first clamping structure comprising the clamping groove and the clamping part, the clamping groove is a clamping through groove, and the clamping part is a clamping plate which is inclined outwardly in the butt joint direction.

[0014] In the preferred embodiment, the first clamping structure comprises a guide groove, the clamping plate and the guide groove are sequentially connected in the butt joint direction, and the clamping plate is connected to the groove bottom surface of the guide groove.

[0015] In the preferred embodiment, the side wall of the second sleeve is provided with a plurality of the first clamping structures.

[0016] In the preferred embodiment, the clamping groove in at least one of the first clamping structures is oppositely arranged to the clamping groove in another of the first clamping structures.

[0017] In the preferred embodiment, the protruding part comprises a protruding column standing plate, the protruding column standing plate can be moved into the clamping groove along the clamping plate, and abuts against the end surface of the clamping plate close to the clamping groove.

[0018] In the preferred embodiment, the protruding part comprises a protruding column rib plate, the protruding column rib plate is connected between the outer wall of the first sleeve and the protruding column standing plate.

[0019] In the preferred embodiment, the side wall of the second sleeve is provided with a second clamping structure comprising the clamping groove and the clamping part, and the clamping groove is a clamping groove.

[0020] In the preferred embodiment, the clamping part comprises a first clamping protruding block, the second clamping structure comprises a second clamping protruding block, the first clamping protruding block and the second clamping protruding block are sequentially and spacedly distributed in the butt joint direction, and the clamping groove is arranged between the first clamping protruding block and the second clamping protruding block.

[0021] In a preferred embodiment, the side wall of the second sleeve is provided with a plurality of oppositely arranged second clamping structures.

[0022] In a preferred embodiment, the first sleeve is provided with an abutting plate for abutting with the end face of the second sleeve.

[0023] In a preferred embodiment, the first sleeve is connected with at least one first cable tube, the second sleeve is connected with at least one second cable tube, and the first cable tube, the first accommodating cavity, the second accommodating cavity and the second cable tube are in communication.

[0024] In a preferred embodiment, the cable protection device comprises a shielding structure arranged in the first accommodating cavity and the second accommodating cavity, and the shielding structure is configured for the cable to pass through the shielding structure.

[0025] In a preferred embodiment, the joint of the shielding structure is provided with a shielding gap, and an EMI gasket (EMI, Electromagnetic Interference) is arranged in the shielding gap, and the shielding gap is configured to compress the thickness of the EMI gasket by 10% to 95%.

[0026] The characteristics and advantages of the present application are:

[0027] In the cable protection device, the convex part is clamped and matched with the clamping groove and the clamping part, which can prevent the first sleeve from being separated from the second sleeve. Since the clamping part is limited to move away from the side wall of the first sleeve when the second sleeve is connected to the first sleeve, the position of the clamping part remains stable and is not easy to deform or move, which increases the difficulty of deforming or moving the clamping part to make the clamping part separate from the clamping groove, making the connection between the first sleeve and the second sleeve more stable, and it is difficult for the staff to disassemble the cable protection device, so it is not easy to disassemble the cable protection device due to misoperation, the protection effect of the cable is better, and the risk of electric shock caused by touching the cable in the cable protection device due to misoperation of the staff to disassemble the cable protection device is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 The overall schematic diagram of the cable protection device provided by the present application is shown in the drawings.

[0030] Figure 2A Fig. 1 shows a schematic view of a cable protection device according to the present application in a first state; Figure 1 Fig. 2 shows a schematic view of a first sleeve in the cable protection device shown in Fig. 1 ;

[0031] Figure 2B Fig. 3 shows a schematic view of another perspective of the first sleeve shown in Fig. 2; Figure 2A Fig. 4 shows a schematic view of a second sleeve in the cable protection device shown in Fig. 1 ;

[0032] Figure 3A Fig. 5 shows a schematic view of another perspective of the second sleeve shown in Fig. 4; Figure 1 Fig. 6 shows a schematic view of a detail of the cable protection device shown in Fig. 1 at B;

[0033] Figure 3B Fig. 7 shows a schematic view of a detail of the cable protection device shown in Fig. 1 at C; Figure 3A Fig. 8 shows a schematic view of a detail of the cable protection device shown in Fig. 1 at D;

[0034] Figure 4A Fig. 9 shows a schematic view of a vertical cross-section of the cable protection device shown in Fig. 1 ; Figure 1 Fig. 10 shows a schematic view of a horizontal cross-section of the cable protection device shown in Fig. 1 ;

[0035] Figure 4B Fig. 11 shows a schematic view of a detail of the cable protection device shown in Fig. 1 at C; Figure 4A Fig. 12 shows a schematic view of a detail of the cable protection device shown in Fig. 1 at D;

[0036] Figure 5A Fig. 13 shows a schematic view of a cable protection device according to the present application in a first state; Figure 1 Fig. 14 shows a schematic view of a vertical cross-section of the cable protection device shown in Fig. 13; Fig. 15 shows a schematic view of a horizontal cross-section of the cable protection device shown in Fig. 13;

[0037] Fig. 16 shows a schematic view of a detail of the cable protection device shown in Fig. 13 at B; Figure 5B Fig. 17 shows a schematic view of a detail of the cable protection device shown in Fig. 13 at C; Figure 5A Fig. 18 shows a schematic view of a detail of the cable protection device shown in Fig. 13 at D; Fig. 19 shows a schematic view of a cable protection device according to the present application in a first state;

[0038] Fig. 20 shows a schematic view of a detail of the cable protection device shown in Fig. 19 at A; Figure 6 Fig. 21 shows a schematic view of a detail of the cable protection device shown in Fig. 19 at B; Fig. 22 shows a schematic view of a detail of the cable protection device shown in Fig. 19 at C;

[0039] Fig. 23 shows a schematic view of a detail of the cable protection device shown in Fig. 19 at D; Figure 7 Fig. 24 shows a schematic view of a cable protection device according to the present application in a first state; Figure 6 Fig. 25 shows a schematic view of a detail of the cable protection device shown in Fig. 24 at A; Fig. 26 shows a schematic view of a detail of the cable protection device shown in Fig. 24 at B;

[0040] Fig. 27 shows a schematic view of a detail of the cable protection device shown in Fig. 24 at C; Figure 8 Fig. 28 shows a schematic view of a detail of the cable protection device shown in Fig. 24 at D; Figure 6 Fig. 29 shows a schematic view of a cable protection device according to the present application in a first state; Fig. 30 shows a schematic view of a detail of the cable protection device shown in Fig. 29 at A;

[0041] Fig. 31 shows a schematic view of a detail of the cable protection device shown in Fig. 29 at B; Figure 9 Fig. 32 shows a schematic view of a detail of the cable protection device shown in Fig. 29 at C; Figure 6 Fig. 33 shows a schematic view of a cable protection device according to the present application in a first state; Fig. 34 shows a schematic view of a detail of the cable protection device shown in Fig. 33 at A;

[0042] Fig. 35 shows a schematic view of a detail of the cable protection device shown in Fig. 33 at B; Figure 10 Fig. 36 shows a schematic view of a detail of the cable protection device shown in Fig. 33 at C; Figure 6 Fig. 37 shows a schematic view of a cable protection device according to the present application in a first state; Fig. 38 shows a schematic view of a detail of the cable protection device shown in Fig. 37 at A;

[0043] Fig. 39 shows a schematic view of a detail of the cable protection device shown in Fig. 37 at B; Figure 11 Fig. 40 shows a schematic view of a detail of the cable protection device shown in Fig. 37 at C; Figure 3A Fig. 41 shows a schematic view of a detail of the cable protection device shown in Fig. 37 at D; Fig. 42 shows a schematic view of a detail of the cable protection device shown in Fig. 37 at E;

[0044] Brief Description of Drawings

[0045] 10, sleeve; 100, docking direction; 101, accommodating cavity;

[0046] 50, first sleeve; 51, first accommodating cavity; 52, protruding part; 53, abutting plate;

[0047] 60, second sleeve; 61, second accommodating cavity; 62, clamping groove; 63, clamping part;

[0048] 70, first clamping structure; 71, clamping through groove; 72, guiding groove; 721, groove bottom surface; 73, clamping plate; 521, clamping protruding column; 541, protruding column vertical plate; 542, protruding column rib plate;

[0049] 80, second clamping structure; 81, clamping groove; 821, first clamping protruding block; 822, second clamping protruding block; 522, positioning clamping column;

[0050] 91, first cable tube; 92, second cable tube;

[0051] 102, docking barrel; 103, accommodating barrel; 104, cable;

[0052] 11, cable tube; 12, open groove; 13, pressing arm; 131, arm protruding block;

[0053] 20, locking barrel; 21, pressing protruding block; 211, protruding block inclined surface; 22, handle;

[0054] 30, locking groove; 40, locking protruding block;

[0055] 31, circumferential groove part; 32, axial groove part; 33, locking part; 34, positioning groove; 41, positioning column;

[0056] 36, circumferential clamping groove; 42, first locking clamping block; 421, clamping block vertical plate; 422, clamping block rib plate. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0058] The cable protection device comprises at least one sleeve 10, the sleeve 10 is provided with an accommodating cavity 101 for accommodating a cable, and the cable can pass through the sleeve 10.

[0059] In some cases, the cable protection device includes a sleeve 10, which can be installed on the vehicle body. The cable passes through the sleeve 10, which can limit and protect the cable.

[0060] In other cases, the cable protection device includes a plurality of sleeves 10. Specifically, the plurality of sleeves 10 includes a first sleeve 50 and a second sleeve 60. The first sleeve 50 is provided with a first receiving cavity 51 for receiving cables, and the first sleeve 50 is configured such that cables pass through the first receiving cavity 51. The second sleeve 60 is provided with a second receiving cavity 61 for receiving cables, and the second sleeve 60 is configured such that cables pass through the second receiving cavity 61. The second sleeve 60 is movable along the mating direction 100 to be mated with the first sleeve 50. When the second sleeve 60 is mated with the first sleeve 50, the first receiving cavity 51 and the second receiving cavity 61 are in communication, and cables can pass through the first sleeve 50 and the second sleeve 61. The connection of the cable can be disposed in the first receiving cavity 51 and the second receiving cavity 61, thereby protecting the cable.

[0061] Example 1

[0062] This invention provides a cable protection device, such as... Figures 1-3B As shown, the cable protection device includes: a first sleeve 50 and a second sleeve 60. The first sleeve 50 has a first receiving cavity 51 for accommodating the cable, and the first sleeve 50 is configured such that the cable passes through the first receiving cavity 51. The second sleeve 60 has a second receiving cavity 61 for accommodating the cable, and the second sleeve 60 is configured such that the cable passes through the second receiving cavity 61, and the second sleeve 60 is movable along the mating direction 100 to be mated with the first sleeve 50. The side wall of the first sleeve 50 has a protrusion 52, and the side wall of the second sleeve 60 has a locking groove 62 and a locking portion 63 sequentially distributed along the mating direction 100. When the second sleeve 60 is mated with the first sleeve 50, as shown... Figure 4A and Figure 5A As shown, the first receiving cavity 51 and the second receiving cavity 61 are at least partially connected. The protrusion 52 is engaged with the engaging groove 62. The engaging part 63 is configured to prevent the protrusion 52 from disengaging from the engaging groove 62, and the engaging part 63 is restricted to move away from the side wall of the first sleeve 50.

[0063] The cable protection device, through the protruding portion 52 and the clamping groove 62 and the clamping portion 63 clamping cooperation, can prevent the first sleeve 50 and the second sleeve 60 from being separated. Because in the case of the second sleeve 60 and the first sleeve 50 butt joint connection, the clamping portion 63 is limited to move away from the side wall of the first sleeve 50, so that the position of the clamping portion 63 remains stable, not easy to deform or move, also increases the difficulty of driving the clamping portion 63 to deform or move to make the clamping portion 63 disengage from the clamping groove 62, so that the connection of the first sleeve 50 and the second sleeve 60 is more stable, and the staff is difficult to disassemble the cable protection device, so it is not easy to disassemble the cable protection device due to misoperation, the protection effect of the cable is better, and the risk of electric shock caused by the staff touching the cable in the cable protection device due to misoperation of disassembling the cable protection device is reduced.

[0064] As shown in Figures 1-3B , the second sleeve 60 is configured to be sleeved to the outside of the first sleeve 50 in the butt joint direction 100, and the protruding portion 52 is arranged on the outer wall of the first sleeve 50. The end of the first sleeve 50 extends into the second sleeve 60, and the protruding portion 52 is clamped in the clamping groove 62 on the side wall of the second sleeve 60. The protruding portion 52 is arranged on the outer wall of the first sleeve 50, compared with arranging the protruding portion 52 on the inner wall, so that the cable protection device is easier to form and is convenient to manufacture.

[0065] The inventor further improves the structure of the clamping groove 62.

[0066] First clamping structure 70

[0067] As shown in Figure 3A , Figure 3B , Figure 4A and Figure 4B , the side wall of the second sleeve 60 is provided with a first clamping structure 70 having a clamping groove 62 and a clamping portion 63. The clamping groove 62 is a clamping through groove 71, and the clamping portion 63 is a clamping plate 73. The protruding portion 52 abuts against the end face of the clamping plate 73 close to the clamping groove 62, and the clamping plate 73 prevents the protruding portion 52 from moving in the butt joint direction 100 and limits the protruding portion 52 in the clamping groove 62. The shape of the clamping through groove 71 can be various, such as triangle, trapezoid or ellipse, etc.

[0068] Further, the clamping plate 73 is inclined outwardly along the butt joint direction 100, as shown in Figure 4A and Figure 4BAs shown, on the one hand, the snap-fit ​​plate 73 is inclined inward in the direction pointing to the protrusion 52, which makes the driving force required to drive the protrusion to deform outward larger; on the other hand, the snap-fit ​​plate 73 is inclined inward and abuts against the protrusion 52 in the direction pointing to the protrusion 52, which makes the space for applying external force to the snap-fit ​​plate 73 smaller, and it is difficult for the operator to apply an outward force to the snap-fit ​​plate 73. Therefore, when the second sleeve 60 and the first sleeve 50 form a mating connection, the outward movement of the snap-fit ​​plate 73 is restricted. In this embodiment, the side wall where the first sleeve 50 is located is located inside the snap-fit ​​plate 73, so the snap-fit ​​plate 73 is restricted to move away from the side wall of the first sleeve 50.

[0069] The snap-fit ​​plate 73 confines the protrusion 52 within the snap-fit ​​groove 62. To disengage the protrusion 52 from the snap-fit ​​groove 62, the snap-fit ​​plate 73 typically needs to move outwards so that the protrusion 52 moves to the inner wall of the snap-fit ​​plate 73. As mentioned earlier, the outward movement of the snap-fit ​​plate 73 is restricted, making it difficult for the operator to apply force to move the snap-fit ​​plate 73 outwards. This makes the position of the snap-fit ​​plate 73 more stable, increasing the difficulty for the protrusion 52 to disengage from the snap-fit ​​groove 62. Consequently, the connection between the first sleeve 50 and the second sleeve 60 becomes more secure, making it difficult for workers to disassemble the cable protection device.

[0070] like Figure 3A and Figure 3B As shown, the first snap-fit ​​structure 70 includes a guide groove 72, and a snap-fit ​​plate 73 is sequentially connected to the guide groove 72 along the mating direction 100. The snap-fit ​​plate 73 is connected to the bottom surface 721 of the guide groove 72. When assembling the first sleeve 50 and the second sleeve 60, the first sleeve 50 moves towards the second sleeve 60 in the opposite direction of the mating direction 100. The protrusion 52 on the first sleeve 50 first enters the guide groove 72, then abuts against the inner wall of the snap-fit ​​plate 73, and continues to move along the mating direction 100 into the snap-fit ​​groove 62. By providing the guide groove 72, it is easy for the protrusion 52 to move into the snap-fit ​​groove 62, facilitating assembly.

[0071] like Figure 3A and Figure 3B As shown, the side wall of the second sleeve 60 is provided with multiple first snap-fit ​​structures 70. The first sleeve 50 is provided with multiple protrusions 52 that mate with the first snap-fit ​​structures 70, thereby allowing the first sleeve 50 and the second sleeve 60 to snap together at multiple positions, improving the reliability of the connection. Furthermore, the snap-fit ​​groove 62 in at least one first snap-fit ​​structure 70 is opposite to the snap-fit ​​groove 62 in another first snap-fit ​​structure 70. For the two oppositely positioned snap-fit ​​grooves 62, in order to disengage the protrusions 52 from the snap-fit ​​grooves 62, it is necessary to apply opposite forces to the snap-fit ​​plates 73 corresponding to the two snap-fit ​​grooves 62, further increasing the difficulty of operation and reducing the risk of misoperation. For example, as... Figure 3A andFigure 3B As shown, the end face of the second sleeve 60 is rectangular, and the opposite two edges of the rectangle are respectively provided with the first clamping structure 70.

[0072] As shown in Figure 2A , Figure 4A and Figure 4B shown, the protruding part 52 is a clamping protruding column 521, which includes a protruding column vertical plate 541 that can be moved along the clamping plate 73 into the clamping groove 62 and abut against the end face of the clamping plate 73 close to the clamping groove 62, so that the protruding column vertical plate 541 is clamped in the clamping groove 62. In an embodiment, the clamping protruding column 521 includes a protruding column rib plate 542 connected between the outer wall of the first sleeve 50 and the protruding column vertical plate 541, which increases the strength of the clamping protruding column 521, so that the clamping protruding column 521 is not easy to deform, increasing the difficulty of the operator pushing the clamping protruding column 521 to move inward, which is beneficial to the more stable connection of the clamping protruding column 521 and the clamping groove 62. Specifically, the protruding column rib plate 542 can be arranged extending along the butt direction 100. As shown in Figure 2A , the protruding column vertical plate 541 and the protruding column rib plate 542 are configured as the clamping protruding column 521. The end face of the clamping plate 73 close to the clamping groove 62 serves as a lapping surface, and one end face of the protruding column vertical plate 541 in the clamping protruding column 521 serves as a lapping surface, and the two lapping surfaces are abutted together to realize clamping.

[0073] Second clamping structure 80

[0074] As shown in Figure 3A , Figure 3B , Figure 5A and Figure 5B , the side wall of the second sleeve 60 is provided with a second clamping structure 80 with a clamping groove 62 and a clamping part 63, and the clamping groove 62 is a clamping groove 81. The clamping groove 62 and the clamping part 63 are both arranged on the side wall of the second sleeve 60, and the body of the side wall of the second sleeve 60 on the side of the clamping groove 62 close to the end face of the second sleeve 60 constitutes the clamping part 63.

[0075] The protruding part 52 is arranged on the outer wall of the first sleeve 50, and the second sleeve 60 is sleeved on the first sleeve 50, as shown in Figure 2A and Figure 2BAs shown, the protruding part 52 is a positioning clamping column 522. Unlike the through slot, the protruding part 52 is clamped in the clamping groove 81, and the bottom wall of the clamping groove 81 covers the protruding part 52. On the one hand, after the first sleeve 50 and the second sleeve 60 are docked, the protruding part 52 and the clamping groove 62 are not visible externally, and it is difficult for the operator to confirm the position of the protruding part 52 or the clamping groove 62, thereby making it difficult to operate. On the other hand, the clamping groove 62 is a clamping groove 81, and the outer wall of the second sleeve 60 is closed, and there is no space for operating the clamping part 63, and it is difficult for the operator to exert an external force on the clamping part 63. Therefore, when the second sleeve 60 and the first sleeve 50 form a docking connection, the movement of the clamping part 63 to the outside is limited. In this embodiment, the side wall where the first sleeve 50 is located is located inside the clamping part 63, so that the clamping part 63 is limited to move in a direction away from the side wall of the first sleeve 50.

[0076] In an embodiment, as shown in Figure 3A and Figure 3B , the clamping part 63 is a first clamping protrusion 821; the second clamping structure 80 includes a second clamping protrusion 822, and the first clamping protrusion 821 and the second clamping protrusion 822 are sequentially and spaced apart along the docking direction 100, and the clamping groove 62 is arranged between the first clamping protrusion 821 and the second clamping protrusion 822. When docking, the protruding part 52 moves in the opposite direction of the docking direction 100 and enters the clamping groove 62 through the first clamping protrusion 821. By arranging the first clamping protrusion 821 and the second clamping protrusion 822, the connection strength of the protruding part 52 and the second sleeve 60 is increased. Further, the outer side of the first clamping protrusion 821 is provided with a protrusion inclined surface, so as to facilitate the protruding part 52 to move along the protrusion inclined surface in the opposite direction of the docking direction 100.

[0077] As shown in Figure 3A , the side wall of the second sleeve 60 is provided with a plurality of second clamping structures 80. The first sleeve 50 is provided with a plurality of protruding parts 52 matched with the second clamping structures 80, so that the first sleeve 50 and the second sleeve 60 are clamped at multiple positions, thereby improving the reliability of the connection. For example, as shown in Figure 3A , the end face of the second sleeve 60 is rectangular, and the second clamping structure 80 is arranged on the opposite two edges of the rectangle respectively.

[0078] The above has introduced that the first clamping structure 70 and / or the second clamping structure 80 are arranged to limit the movement of the clamping part 63 in a direction away from the side wall of the first sleeve 50, so as to increase the difficulty for the operator to disassemble the cable protection device, and reduce the misoperation. Next, another embodiment is introduced.

[0079] The first sleeve 50 is configured to be sleeved outside the second sleeve 60 in the reverse direction of the butt joint direction 100, the protruding part 52 is arranged on the inner wall of the first sleeve 50, the clamping groove 62 and the clamping part 63 are both arranged on the side wall of the second sleeve 60, the clamping groove 62 can be a through groove or a recess, in the case of butt joint connection between the second sleeve 60 and the first sleeve 50, the side wall of the first sleeve 50 surrounds the side wall of the second sleeve 60, the protruding part 52, the clamping part 63 and the clamping groove 62 are all located on the inner side of the side wall of the second sleeve 60, so that the protruding part 52, the clamping part 63 and the clamping groove 62 are all invisible; and there is no space for operating the clamping part 63, the protruding part 52 extends inwardly, it is difficult for the operator to exert an external force on the clamping part 63, it is difficult to drive the clamping part 63 to move inwardly to make the protruding part 52 disengage from the clamping groove 62, therefore, the movement of the clamping part 63 inwardly is limited, in the embodiment, the side wall of the first sleeve 50 is located on the outer side of the clamping part 63, so that the clamping part 63 is limited to move in the direction away from the side wall of the first sleeve 50, the difficulty of disengaging the protruding part 52 from the clamping groove 62 is increased, so that the connection between the first sleeve 50 and the second sleeve 60 is more stable, and it is difficult for the operator to disassemble the cable protection device.

[0080] In an embodiment of the present application, the first sleeve 50 is provided with an abutting plate 53 for abutting with the end face of the second sleeve 60, so as to limit the stroke of the second sleeve 60 moving relative to the first sleeve 50 in the butt joint direction 100, and play a positioning role.

[0081] As shown in Figures 1-3B , the first sleeve 50 is connected with at least one first cable pipe 91, the second sleeve 60 is connected with at least one second cable pipe 92, and the first cable pipe 91, the first accommodating cavity 51, the second accommodating cavity 61 and the second cable pipe 92 are communicated. For example, the cable can enter the first accommodating cavity 51 and the second accommodating cavity 61 through the first cable pipe 91, and after the cable is divided into multiple cables, the multiple cables can pass out through multiple second cable pipes 92 respectively.

[0082] Locking cylinder

[0083] As shown in Figure 6 , Figure 7 , Figure 3A and Figure 11 , the cable protection device comprises a sleeve 10 and a locking cylinder 20, the sleeve 10 is provided with a cable pipe 11; the locking cylinder 20 is configured to be sleeved outside the cable pipe 11; the end of the cable pipe 11 is provided with a pressing arm 13 and an open slot 12 adjacent to the pressing arm 13; the inner wall of the locking cylinder 20 is provided with a pressing protruding block 21 capable of being sleeved in the open slot 12, as shown in Figure 9 and Figure 10As shown, the pressing block 21 is configured to rotate to the outside of the pressing arm 13 with the locking cylinder 20 to press the pressing arm 13 to move inward.

[0084] Using the cable protection device, the locking cylinder 20 is sleeved on the cable tube 11, one end of the cable 104 is passed out of the cable tube 11 and passes through the locking cylinder 20. When the cable 104 is passed, the pressing block 21 on the locking cylinder 20 is passed in the opening groove 12, and the pressing block 21 is located in the opening groove 12. Figure 9 As shown, the pressing arm 13 is not pressed by the pressing block 21, and the size of the hole at the end of the cable tube 11 is larger, which reduces the resistance between the cable tube 11 and the cable 104 when the cable 104 moves, and facilitates the cable 104 to pass through the cable tube 11. After the position of the cable 104 is adjusted, the locking cylinder 20 is rotated to rotate the pressing block 21 to the outside of the pressing arm 13, the pressing block 21 presses the pressing arm 13 inward, the pressing arm 13 moves inward, the size of the hole at the end of the cable tube 11 is reduced, the pressing arm 13 is pressed on the outer wall of the cable 104, which can prevent the displacement of the cable tube 11, keep the position of the cable 104 stable, reduce the risk of the cable 104 from the fixed connection position, and reduce the cable 104 failure.

[0085] The sleeve 10 is provided with a receiving cavity 101 for accommodating and carrying the wire. The opening groove 12 can accommodate the pressing block 21, the pressing block 21 is passed in the opening groove 12, and the pressing block 21 can move in the opening groove 12 along the longitudinal direction of the cable tube 11. The pressing block 21 cooperates with the opening groove 12 to play a positioning role. During the process of sleeving the locking cylinder 20 on the cable tube 11, the pressing block 21 and the opening groove 12 guide the locking cylinder 20 to move along the bus of the cable tube 11. As shown in Figure 2A and Figure 1 As shown, a plurality of cable tubes 11 can be provided on the sleeve 10, a plurality of cables 104 are respectively passed out of each cable tube 11, and the locking cylinder 20 connected to each cable tube 11 respectively limits the displacement of each cable 104. As shown, Figure 1 As shown, the cable protection device includes a plurality of sleeves 10, the plurality of sleeves 10 are connected in abutment, the cable 104 passes through the abutted sleeves 10, and the locking cylinders 20 at both ends respectively lock the positions of both ends of the cable 104. The cable protection device can reduce the displacement of the cable 104 and keep the cable 104 in the cable protection device stable. The connection of the plurality of cables 104 can be arranged in the cable protection device to avoid the disconnection of the plurality of cables 104, which is beneficial to ensure the reliability of the connection of the cable 104.

[0086] The pressing protrusion 21 presses the pressing arm 13 inwardly, and the pressing arm 13 is deformed inwardly, and the pressing arm 13 presses the cable 104, and the pressing protrusion 21 and the pressing arm 13 generate a friction force, which can prevent the locking cylinder 20 from moving relative to the cable tube 11. In an embodiment of the present application, the cable protection device comprises at least one locking protrusion 40 and at least one locking groove 30; the at least one locking protrusion 40 is arranged on the outer wall of the cable tube 11, and the at least one locking groove 30 is arranged on the locking cylinder 20; and / or, the at least one locking protrusion 40 is arranged on the inner wall of the locking cylinder 20, and the at least one locking groove 30 is arranged on the cable tube 11; the locking protrusion 40 is configured to be embedded in the locking groove 30, so as to limit the position of the locking cylinder 20 on the cable tube 11, and facilitate the position of the locking cylinder 20 on the cable tube 11 to be stable, and the two are kept Figure 10 As shown in the state shown in the figure, the pressing arm 13 is pressed inwardly on the cable 104 under the pressing of the pressing protrusion 21.

[0087] As shown in the state shown in the figure, the pressing arm 13 is pressed inwardly on the cable 104 under the pressing of the pressing protrusion 21. Figure 7 、 Figure 8 、 Figure 3A 、 Figure 11 and Figure 2A As shown in the state shown in the figure, the pressing arm 13 is pressed inwardly on the cable 104 under the pressing of the pressing protrusion 21. Figure 7 、 Figure 8 、 Figure 3A 、 Figure 11 and Figure 2A As shown in the state shown in the figure, the pressing arm 13 is pressed inwardly on the cable 104 under the pressing of the pressing protrusion 21.

[0088] The locking protrusion 40 is configured to be embedded in the locking groove 30, and the locking groove 30 can be a through groove or a recess. When the locking groove 30 is arranged on the locking cylinder 20, preferably, as shown in the figure, the locking groove 30 is a through groove, so as to facilitate manufacturing. Figure 7

[0089] In an embodiment, the locking groove 30 comprises a circumferential groove portion 31 extending along a planar circumferential line around the axis of the cable tube 11; and the locking protrusion 40 is configured to be rotatably embedded in the circumferential groove portion 31. As shown in the figure, Figure 7 and​Figure 8 As shown, the locking protrusion 40 rotates in the circumferential groove portion 31, and the trajectory of the rotation is a planar circumferential line around the axis of the cable tube 11, so that the locking cylinder 20 rotates without axial displacement, and by rotating the locking cylinder 20 by a small angle, the compression protrusion 21 is moved to the outer wall of the compression arm 13, so as to compress and lock the cable 104.

[0090] Further, the locking groove 30 includes an axial groove portion 32 in communication with the circumferential groove portion 31, and the axial groove portion 32 is configured to guide the locking protrusion 40 into the circumferential groove portion 31. When the locking cylinder 20 is sleeved on the cable tube 11, the locking protrusion 40 first enters the axial groove portion 32, and the locking protrusion 40 moves along the axial groove portion 32 into the circumferential groove portion 31, so as to facilitate smooth installation of the locking cylinder 20.

[0091] Further, the end of the circumferential groove portion 31 has a locking portion 33, and the side wall of the locking portion 33 is configured to press the locking protrusion 40 inward. Figure 8 As shown, compared with the groove width of the initial segment of the circumferential groove portion 31, the size of the locking portion 33 is reduced, and after the locking protrusion 40 enters the locking portion 33, the side wall of the locking portion 33 presses the locking protrusion 40, which can generate a resistance to prevent the locking protrusion 40 from returning, thereby limiting the locking protrusion 40 in the locking portion 33. Preferably, the locking protrusion 40 is in a cylindrical shape, the shape of the locking portion 33 is matched with the locking protrusion 40, the locking portion 33 can be a circular hole, the side wall of the locking portion 33 surrounds the locking protrusion 40, and the locking portion 33 is provided with an opening for the locking protrusion 40 to enter the locking portion 33, and in a natural state, the opening is smaller than the locking protrusion 40, so as to prevent the locking protrusion 40 from exiting the locking portion 33 after entering the locking portion 33. Figure 8 As shown, the axial groove portion 32, the circumferential groove portion 31 and the locking portion 33 are connected in sequence to form a positioning groove 34; the locking protrusion 40 forms a positioning column 41, and the positioning column 41 moves in the positioning groove 34, which guarantees the smoothness of the movement of the locking cylinder 20, and when the positioning column 41 moves to the locking portion 33, the locking is realized.

[0092] In another embodiment, the locking groove 30 includes a spiral groove portion extending along a spiral line around the axis of the cable tube 11, and the locking protrusion 40 moves along the spiral groove portion, and the trajectory of the movement of the locking protrusion 40 is a spiral line around the axis of the cable tube 11, so that rotating the locking cylinder 20 can drive the compression protrusion 21 to rotate to the outside of the compression arm 13, and the locking protrusion 40 threadedly cooperates with the spiral groove portion, and rotating the locking cylinder 20 can generate a friction force between the locking protrusion 40 and the spiral groove portion, and by using the friction force, the position of the locking cylinder on the cable tube 11 can be kept stable.

[0093] In still another embodiment, as shown,Figure 7 , Figure 8 , Figure 3A , Figure 11 and Figure 2A As shown, the locking groove 30 is a circumferential groove 36, and the locking protrusion 40 is a first locking block 42. The first locking block 42 is configured to engage with the circumferential groove 36 to prevent the locking cylinder 20 from moving relative to the cable conduit 11 along the axial direction of the cable conduit 11, and the first locking block 42 can rotate within the circumferential groove 36. The axial position of the locking cylinder 20 on the cable conduit 11 is limited by the circumferential groove 36 and the first locking block 42; at the same time, the first locking block 42 can rotate within the circumferential groove 36 to allow the locking cylinder 20 to rotate on the cable conduit 11.

[0094] like Figure 3A , Figure 11 and Figure 2A As shown, the first locking block 42 includes a locking block upright plate 421, which is configured to abut against the inner wall of the circumferential locking groove 36, so that the first locking block 42 is engaged with the circumferential locking groove 36. In one embodiment, the first locking block 42 includes a locking block rib 422, which is connected to the locking block upright plate 421. The locking block rib 422 increases the strength of the first locking block 42, thereby making the first locking block 42 less prone to deformation. Specifically, the locking block rib 422 may be provided to extend longitudinally along the cable conduit 11.

[0095] In another embodiment, the locking groove 30 is an axial groove, and the locking protrusion 40 is a second locking block. The axial groove and the second locking block are configured such that the second locking block engages within the axial groove to prevent the locking cylinder 20 from rotating relative to the cable conduit 11 around the axis of the cable conduit 11. When the locking cylinder 20 is fitted over the cable conduit 11 and rotated, the second locking block enters the axial groove to prevent the locking cylinder 20 from rotating, thus limiting the position of the locking cylinder 20. Preferably, the locking cylinder 20 has an axial groove and a circumferential groove 31. The axial groove and the axial groove 32 cooperate to lock the position of the locking cylinder 20, providing the advantages of accurate positioning and reliable locking.

[0096] Furthermore, the cable protection device includes multiple locking protrusions 40 and multiple locking grooves 30. The multiple locking protrusions 40 are all located on the outer wall of the cable conduit 11, and the multiple locking grooves 30 are all located in the locking cylinder 20; for example... Figure 7 , Figure 8 , Figure 3A , Figure 11 and Figure 2AAs shown, the at least one locking groove 30 comprises a circumferential groove portion 31 extending along a planar circumferential line around the axis of the cable tube 11; the at least one locking protrusion 40 is rotatable within the circumferential groove portion 31; the at least one locking groove 30 is a circumferential clamping groove 36, and the at least one locking protrusion 40 is a first locking clamping block 42 capable of being clamped in the circumferential clamping groove 36 to prevent the locking cylinder 20 from moving relative to the cable tube 11 along the axial direction of the cable tube 11, and the first locking clamping block 42 is rotatable within the circumferential clamping groove 36. The position of the locking cylinder 20 is locked by the cooperation of the circumferential clamping groove 36 and the circumferential groove portion 31, which has the advantages of accurate positioning and reliable locking.

[0097] As shown in Figure 7 The pressing protrusion 21 has a protrusion inclined surface 211 for overlapping with the pressing arm 13, and the protrusion inclined surface 211 guides the pressing protrusion 21 to rotate to the outside of the pressing arm 13 when the locking cylinder 20 is rotated. Initially, the pressing protrusion 21 is arranged in the opening groove 12, and the protrusion inclined surface 211 is in contact with the side wall of the pressing arm 13. When the locking cylinder 20 is rotated, the protrusion inclined surface 211 plays a guiding role, facilitating the movement of the pressing protrusion 21 to the outside of the pressing arm 13. The locking cylinder 20 is provided with a handle 22 to facilitate operation, and the number of handles 22 is selected as two according to installation requirements, or other numbers such as three, five, six, etc. according to different specifications. The handles 22 are arranged in an overall layout of two above and two below according to installation requirements, which is helpful for uniform stress during installation and meets the strength requirements of anti-disassembly. Different layout schemes can be used according to different installation requirements.

[0098] As shown in Figure 6 , Figure 3A , Figure 11 and Figure 2A The inner wall of the pressing arm 13 is provided with an arm protrusion 131, and the pressing arm 13 abuts against the cable 104 through the arm protrusion 131, which is conducive to concentrating the pressing force on the arm protrusion 131 and generating greater resistance to better prevent the displacement of the cable 104 and improve the stability of the position of the cable 104.

[0099] In an embodiment of the present application, the cable protection device comprises a shielding structure arranged in the first accommodating cavity and the second accommodating cavity, and the shielding structure is configured to allow the cable to pass through the shielding structure. The structure of the shielding structure is not limited to one, for example: the shielding structure can be a shielding shell, the shielding shell wraps around the connection of the cable, and multiple cables pass out of the shielding shell respectively; the shielding shell can be a split structure to facilitate the shielding shell to be sleeved on the connection of the cable.

[0100] Further, the joint of the shielding structure is provided with a shielding gap, and an EMI gasket is arranged in the shielding gap. The shielding gap is configured to compress the thickness of the EMI gasket by 10% to 95% to improve the shielding effect. The relationship between the thickness compression ratio of the EMI gasket and the shielding performance is shown in the following table. Specifically, the shielding structure includes a first shell and a second shell, and the first shell and the second shell are spliced into a shielding shell. A cable passes out of the shielding shell. The joint of the first shell and the second shell forms a shielding gap, and an EMI gasket is arranged at the joint of the first shell and the second shell. The EMI gasket is compressed and the thickness is reduced to 10% to 95% of the initial thickness.

[0101]

[0102] The structure, shape and size of the sleeve 10 will now be described in detail.

[0103] The sleeve 10 includes a receiving barrel 103 and a mating barrel 102. A receiving cavity 101 is arranged in the receiving barrel 103 and the mating barrel 102. The receiving barrel 103 and the mating barrel 102 carry the wires and protect the wires, meeting the requirements of flame retardation, difficulty in damage, etc.

[0104] The cable protection device can be applied to protect cables, such as wires or high-voltage wire harnesses, and can also be applied to protect other wire harness-like products.

[0105] As shown in Figure 2A and Figure 2B , the first sleeve 50 includes a first cable tube 91 and a mating barrel 102. As shown in Figure 3A and Figure 3B , the second sleeve 60 includes a second cable tube 92, a receiving barrel 103, and a mating barrel 102.

[0106] The first cable tube 91 and the second cable tube 92 carry the wires and protect the wires, meeting the requirements of flame retardation, difficulty in damage, etc. The first cable tube 91 and the second cable tube 92 have a circular profile shape that matches the outer shape of the wires. Alternative profile schemes include elliptical, square, rectangular, rounded rectangular, triangular, trapezoidal, parallelogram, diamond, polygon, etc. The diameter size of the first cable tube 91 and the second cable tube 92 is designed according to different specifications of the wires and can be an integer (e.g., 10 mm in diameter, 20 mm in diameter, 30 mm in diameter, etc.) or a non-integer (e.g., 11.2 mm in diameter, 12.2 mm in diameter, 13.2 mm in diameter, etc.). The draft angle of the first cable tube 91 and the second cable tube 92 is designed according to the mold ejection requirements and is 1°, or is changed to other angle values according to different lengths, such as 1.5°, 2°, 0.5°, etc.

[0107] The accommodating barrel 103, the butt joint barrel 102 and the butt joint barrel 102 bear the terminal and protect the terminal, meet the requirements of flame retardation, are not easy to be damaged and the like. The accommodating barrel 103, the butt joint barrel 102 and the butt joint barrel 102 are oval, match the wire shape after distribution, and the alternative profile scheme is circular, square, rectangular, rectangular with a round corner, triangular, trapezoidal, parallelogram, diamond, polygon and the like. The overall size of the accommodating barrel 103, the butt joint barrel 102 and the butt joint barrel 102 is designed according to different wire specifications, and can be an integer (for example, size 10 mm, size 20 mm, size 30 mm and the like) or a non-integer (for example, size 11.2 mm, size 12.2 mm, size 13.2 mm and the like). The draft angle of the accommodating barrel 103, the butt joint barrel 102 and the butt joint barrel 102 is designed according to the mold ejection requirement, and is preferably 1°, and can also be changed to other angle values according to different lengths, for example, 1.5°, 2°, 0.5° and the like. The accommodating barrel 103, the butt joint barrel 102 and the butt joint barrel 102 simultaneously act as the bearing body of the first clamping structure 70, the second clamping structure 80, the clamping convex column 521 and the positioning clamping column 522, increase the strength when the buckle is stressed, and meet the requirements of anti-disassembly.

[0108] As shown in Figure 3A and Figure 3B , the second cable tube 92 and the accommodating barrel 103 are vertically connected, save materials and meet the strength requirements at the same time. As shown in Figure 2A and Figure 2B , the accommodating barrel 103 and the butt joint barrel 102 are vertically connected, save materials and meet the strength requirements at the same time.

[0109] The positioning ribs of different shapes are arranged at the outer profile of the accommodating barrel 103, the butt joint barrel 102 and the butt joint barrel 102 according to different assembly requirements, as the positioning points for assembly, the shape of the positioning rib can be rectangular, triangular or cylindrical and the like, and the length and thickness of the positioning rib are designed according to different assembly requirements, and can be an integer (for example, size 10 mm, size 20 mm, size 30 mm and the like) or a non-integer (for example, size 11.2 mm, size 12.2 mm, size 13.2 mm and the like).

[0110] The positioning ribs of different shapes are arranged at the inner profile of the accommodating barrel 103, the butt joint barrel 102 and the butt joint barrel 102 for the assembly and positioning requirements of the second sleeve 60 and the first sleeve 50, as the positioning points for assembly, the shape of the positioning rib can be rectangular, triangular or cylindrical and the like, and the length and thickness of the positioning rib are designed according to different assembly requirements, and can be an integer (for example, size 10 mm, size 20 mm, size 30 mm and the like) or a non-integer (for example, size 11.2 mm, size 12.2 mm, size 13.2 mm and the like).

[0111] The accommodating cylinder 103, the docking cylinder 102 and the outer profile of the docking cylinder 102 are rounded to avoid damage to the surrounding environment and to avoid injury to personnel. Alternatively, the rounded corners can be replaced by beveled corners. The size of the rounded corners and beveled corners can be an integer (e.g. 1 mm, 2 mm, 3 mm, etc.) or a non-integer (e.g. 1.2 mm, 2.2 mm, 3.2 mm, etc.).

[0112] The wall thickness of the second sleeve 60 and the first sleeve 50 can be an integer (e.g. 1 mm, 2 mm, 3 mm, etc.) or a non-integer (e.g. 1.1 mm, 2.1 mm, 3.1 mm, etc.) according to different strength requirements and process requirements.

[0113] The second sleeve 60 and the first sleeve 50 are orange in color, which serves as a warning. They can also be other colors, such as red, purple, blue, etc. The material of the second sleeve 60 and the first sleeve 50 can be selected according to different strength requirements, different temperature resistance levels, and different material property requirements, such as one or more combinations of polyamide, polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, ethylene-propylene-diene rubber, nylon, polycarbonate, polytetrafluoroethylene, polyethylene terephthalate, polyformaldehyde, and polyvinyl chloride. The materials must meet the requirements of flame retardance and strength. The surface of the second sleeve 60 and the first sleeve 50 is treated with sparkles to increase the aesthetic effect and the tactile sensation. The specifications of the sparkles can be selected according to different specifications, such as Ra0.16, Ra0.25, Ra0.32, etc.

[0114] As shown in Figure 2A , Figure 2B , Figure 3A and Figure 3B , the first clamping structure 70 is arranged on the docking cylinder 102, and the clamping protrusion 521 is arranged on the docking cylinder 102. The first clamping structure 70 and the clamping protrusion 521 correspond one by one in position, and the axial position size of the two can be adjusted according to the fitting length. The clamping position of the first clamping structure 70 and the clamping protrusion 521 is the tightest fitting position of the second sleeve 60 and the first sleeve 50. Alternatively, the first clamping structure 70 can be arranged on the cable tube 11, and the clamping protrusion 521 can be arranged on the docking cylinder 102.

[0115] The number of the first clamping structure 70 and the clamping convex column 521 is selected as 4 according to the installation requirements, and can also be selected as other numbers such as 3, 5, 6, etc. according to different specifications. Preferably, the first clamping structure 70 and the clamping convex column 521 are arranged as 2 above and 2 below as a whole according to the installation requirements, which helps to evenly bear the force during installation and meets the strength requirements during anti-disassembly. Other different layout schemes can be used according to different installation requirements, such as 1 above and 2 below, 1 above, 3 above and 1 below, etc.

[0116] The shape of the clamping groove 62 is preferably a rectangular shape with rounded corners according to the installation requirements, and alternative schemes can be circular, square, rectangular, triangular, trapezoidal, parallelogram, rhombus, polygon, etc. The included angle between the clamping plate 73 and the longitudinal direction of the second sleeve 60 is the angle of the inclined surface of the clamping plate 73. The angle of the inclined surface is preferably 10° according to the installation requirements, and can be changed to other angles such as 15°, 20°, 25°, etc. according to different specifications.

[0117] The first clamping structure 70 leaves a certain space at the front end for the arrangement space after the assembly of the second clamping structure 80. The size of the arrangement space is designed according to the size of the second clamping structure 80, and can be an integer (such as size 1mm, size 2mm, size 3mm, etc.) or a non-integer (such as size 1.2mm, size 2.2mm, size 3.2mm, etc.).

[0118] The overall shape of the clamping convex column 521 and the clamping recess 81 is selected as a right triangle according to the installation requirements, and alternative schemes can be circular, square, rectangular, triangular, trapezoidal, parallelogram, rhombus, polygon, etc. The top wall of the convex column rib plate 542 of the clamping convex column 521 and the side wall of the clamping recess 81 are both inclined surfaces, which mainly play a role in assembly and guiding during installation. The angle between the inclined surface and the axis of the sleeve 10 is selected as 20° according to the installation requirements, and can be changed to other angles such as 10°, 15°, 25°, etc. according to different specifications. The number of the second clamping structure 80 and the positioning clamping column 522 is selected as 2 according to the installation requirements, and can also be selected as other numbers such as 3, 4, 5, etc. according to different specifications.

[0119] The second clamping structure 80 and the positioning clamping column 522 are arranged in one on the left and one on the right as a whole according to installation requirements, which helps to uniformly bear force during installation and meets the strength requirements during anti-disassembly. Different layout schemes can be used according to different installation requirements, such as one on the top and one on the bottom, one on the left and two on the right, two on the left and two on the right, etc. The overall shape of the second clamping structure 80 is selected as a trapezoid according to installation requirements, and alternative schemes include a circle, a square, a rectangle, a triangle, a trapezoid, a parallelogram, a rhombus, and a polygon, etc. The overall shape of the positioning clamping column 522 is selected as an inverted trapezoid according to installation requirements, and alternative schemes include a circle, a square, a rectangle, a triangle, a trapezoid, a parallelogram, a rhombus, and a polygon, etc. The angle of the inclined surface of the second clamping structure 80 and the positioning clamping column 522 is selected as 20° according to installation requirements, and can be changed to other angles such as 10°, 15°, 25°, etc. according to different specifications.

[0120] The implementation principle of the cable protection device is as follows: the first clamping structure 70 and the clamping convex column 521 are guided by the top wall of the convex column rib plate 542 of the clamping convex column 521, and during assembly, the clamping plate 73 is gradually guided to produce a trajectory movement with a fixed slope. When the assembly requirement overlap surface is reached, the clamping plate 73 elastically deforms to a fixed value, exceeds the top wall of the convex column rib plate 542 of the clamping convex column 521, and after crossing the overlap surface, the clamping plate 73 produces a springback deformation. The clamping plate 73 and the clamping convex column 521 are assembled to coincide with the overlap surface, and after complete locking, the first clamping structure 70 stops moving, meeting the assembly requirements. Since the overlap surface of the first clamping structure 70 is blocked by the overlap surface of the clamping convex column 521 after assembly, after assembly is completed, the overlap surface of the first clamping structure 70 cannot be contacted by a tool, and thus the first clamping structure 70 cannot be re-elastically deformed by tool operation, so that the disassembly action cannot be completed, meeting the anti-disassembly requirements.

[0121] The second clamping structure 80 and the positioning clamping column 522 are guided by the inclined surface of the positioning clamping column 522, and during assembly, the second clamping structure 80 and the butt cylinder 102 are gradually guided to produce an elastic deformation to a fixed value, exceed the assembly section of the positioning clamping column 522, and after crossing the overlap surface, the second clamping structure 80 produces a springback deformation. The second clamping structure 80 and the positioning clamping column 522 are assembled to coincide with the overlap surface, and after complete locking, the second clamping structure 80 stops moving, meeting the assembly requirements.

[0122] Since the overlap surface of the positioning clamping column 522 is completely wrapped by the butt cylinder 102 after assembly, and the butt cylinder 102 is inserted into the cavity of the butt cylinder 102, the overlap surface of the positioning clamping column 522 is in a hidden and invisible state, and a tool cannot contact the second clamping structure 80, and thus the second clamping structure 80 cannot be re-elastically deformed by tool operation, so that the disassembly action cannot be completed, meeting the anti-disassembly requirements.

[0123] The cable protection device adopts a precision injection molding process, the size requirements of the cable protection device are met by controlling the equipment precision and mold error, the injection molding process is controlled by the mold clamping force, the injection position measurement precision, the injection speed, the injection pressure, the mold temperature and the like, so as to meet the elastic deformation requirements of the buckle and the buckle strength requirements. The specific parameters are preferably selected as follows: when the mold clamping force is zero, the injection precision value is less than 0.03mm; when the mold clamping force is maximum, the injection precision value is less than 0.005mm; the injection position precision (pressure holding termination point) is less than 0.03mm; the injection speed is greater than or equal to 300mm / s; the injection pressure is greater than 25MPa; the mold temperature change should be controlled within ±1℃; the cable protection device adopts an automatic assembly process, the assembly process is controlled by the automatic assembly tooling, so as to meet the installation force, the installation depth, the installation position, the buckle deformation stroke, the error-free assembly, the no-missing assembly, the no-reverse assembly and the like requirements.

[0124] The main structure of the automatic assembly tooling is: industrial computer, cylinder, lead screw, slide rail, positioning structure, guide mechanism, error-proof mechanism and the like.

[0125] The above only describes several embodiments of the present application, and those skilled in the art can make various modifications or changes to the embodiments of the present application according to the disclosed content of the application file without departing from the spirit and scope of the present application.

Claims

1. A cable protection device, characterized in that, The application relates to a cable sleeve. The first sleeve is provided with a first accommodating cavity for accommodating a cable, and the first sleeve is configured to allow the cable to pass through the first accommodating cavity; The second sleeve is provided with a second accommodating cavity for accommodating a cable, and the second sleeve is configured to allow the cable to pass through the second accommodating cavity, and the second sleeve can be moved to butt joint with the first sleeve in a butt joint direction; The side wall of the first sleeve is provided with a protruding part, and the side wall of the second sleeve is provided with a clamping groove and a clamping part which are sequentially arranged in the butt joint direction; When the second sleeve is butt jointed with the first sleeve, the first accommodating cavity and the second accommodating cavity are at least partially communicated, the protruding part is clamped in the clamping groove, the clamping part is configured to prevent the protruding part from being separated from the clamping groove, and the clamping part is limited to move in a direction away from the side wall of the first sleeve; The first sleeve is configured to be sleeved outside the second sleeve in the reverse direction of the butt joint direction, and the protruding part is arranged on the inner wall of the first sleeve; or The second sleeve is configured to be sleeved outside the first sleeve in the butt joint direction, and the protruding part is arranged on the outer wall of the first sleeve; The side wall of the second sleeve is provided with a first clamping structure which comprises the clamping groove and the clamping part, the clamping groove is a clamping through groove, and the clamping part is a clamping plate which is inclined outward in the butt joint direction; The side wall of the second sleeve is provided with a second clamping structure which comprises the clamping groove and the clamping part, and the clamping groove is a clamping groove; The first sleeve is provided with an abutting plate which is used for abutting against the end face of the second sleeve; The first sleeve and the second sleeve are provided with a cable pipe, the cable pipe is sleeved with a locking cylinder, the end part of the cable pipe is provided with a pressing arm and an opening groove which is adjacent to the pressing arm, the inner wall of the locking cylinder is provided with a pressing protruding block which can be arranged in the opening groove, and the pressing protruding block is configured to be rotated to the outside of the pressing arm to press the pressing arm to move inward.

2. The cable protection device of claim 1, wherein, The first clamping structure comprises a guide groove, the clamping plate and the guide groove are sequentially connected in the butt joint direction, and the clamping plate is connected to the groove bottom surface of the guide groove.

3. A cable protection device according to claim 1 or 2, characterised in that, The side wall of the second sleeve is provided with a plurality of the first clamping structures.

4. The cable protection device of claim 3, wherein, The clamping groove in at least one of the first clamping structures is oppositely arranged with the clamping groove in another of the first clamping structures.

5. The cable protection device of claim 1 or 2, wherein, The protruding part comprises a protruding column standing plate which can be moved into the clamping groove and abut against the end face of the clamping plate which is close to the clamping groove.

6. The cable protection device of claim 5, wherein, The protruding part comprises a protruding column rib plate which is connected between the outer wall of the first sleeve and the protruding column standing plate.

7. The cable protection device of claim 1, wherein, The clamping part comprises a first clamping protruding block; The second clamping structure comprises a second clamping protruding block, the first clamping protruding block and the second clamping protruding block are sequentially and spacedly arranged in the butt joint direction, and the clamping groove is arranged between the first clamping protruding block and the second clamping protruding block.

8. The cable protection device of claim 1, wherein, The side wall of the second sleeve is provided with a plurality of oppositely arranged second clamping structures.

9. The cable protection device of claim 1, wherein, The first sleeve is connected with at least one first cable tube, the second sleeve is connected with at least one second cable tube, and the first cable tube, the first accommodating cavity, the second accommodating cavity and the second cable tube are communicated.

10. The cable protection device of claim 1, wherein, The cable protection device comprises a shielding structure arranged in the first accommodating cavity and the second accommodating cavity, and the shielding structure is configured to allow the cable to pass through the shielding structure.

11. The cable protection device of claim 10, wherein, The shielding structure is provided with a shielding gap at a joint thereof, the shielding gap is provided with an EMI gasket, and the shielding gap is configured to compress the thickness of the EMI gasket to 10%~95%.

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