Wire slot assembly

Abstract

The invention discloses a wire duct assembly which has a height direction and a width direction, and the assembly comprises a wire duct which is used for a cable to pass through and is provided with an upper surface and a first side wall and a second side wall which are oppositely arranged along the width direction; the arched protection frame is provided with a first end and a second end which are oppositely arranged in the width direction, the first end is connected with the first side wall, the second end is connected with the second side wall, the arched protection frame stretches across the second side wall from the first side wall and covers the upper surface of the wire groove, and a distance is formed between the arched protection frame and the upper surface of the wire groove. The wire duct assembly provided by the invention has relatively good anti-pressure capability and safety performance.

Description

Technical Field

[0001] The present invention belongs to the technical field of power cable arrangement, and in particular relates to a cable duct assembly. Background Art

[0002] Wire ducts are an indispensable component in electrical wiring systems and are used to lay and protect wires. In order to protect the wires and cables in the wire ducts from external physical damage, such as vehicle running over, vandalism, animal bites, etc., and to reduce the risk of electric shock, keep the floor clean and beautiful, and improve space utilization, it is often necessary to bury the wire ducts that carry the cables underground. However, after a long period of use, the wire ducts will still be damaged to a certain extent. For example, the wire ducts will be deformed due to continuous impact from external forces, creating the risk of cracking. Once cracks or cracks occur, such as water seepage, water will flow into the wire ducts, causing electrical hazards, and even causing the entire system to short-circuit or explode. Based on this, how to avoid external impacts on the wire ducts as much as possible, thereby preventing cracking and improving the safety of the system has become a technical problem that needs to be solved urgently. Summary of the invention

[0003] The present invention solves the above technical problems by providing the following technical solutions.

[0004] The present invention provides a wire trough assembly, which has a height direction and a width direction, and the wire trough assembly comprises:

[0005] A cable trough, for allowing cables to pass through, comprising an upper surface and a first side wall and a second side wall arranged opposite to each other in a width direction;

[0006] The arched protective frame has a first end and a second end arranged opposite to each other along the width direction, the first end is connected to the first side wall, and the second end is connected to the second side wall. The arched protective frame spans from the first side wall to the second side wall, covers the upper surface of the wire trough, and has a distance from the upper surface of the wire trough.

[0007] By adopting the above technical solution, an arched protective frame is arranged on the wire trough, that is, the arched protective frame is covered on the upper surface of the wire trough, so that there is a gap between the arched protective frame and the upper surface of the wire trough. On the one hand, the arched structure of the arched protective frame can effectively convert the vertical load (such as weight, pressure) applied thereon into a force distributed along the arched structure, that is, the arched structure can evenly distribute the external load to the entire arched protective frame structure, thereby effectively avoiding the stress concentration at a certain point of the arched protective frame, so that the arched protective frame can protect the wire trough from the impact of the external load, greatly reducing the potential safety hazard. On the other hand, when the arched protective frame is impacted by the external load, it will produce a certain deformation downward, and the arched space (the area formed between the lower surface of the arched protective frame and the upper surface of the wire trough) provides a certain receiving space for this deformation, so that even if the arched protective frame is deformed, the arched protective frame will not directly exert pressure on the upper surface of the wire trough to cause the upper surface of the wire trough to deform, thereby preventing the line inside the wire trough from being impacted by the external load, thereby reducing the potential safety hazard.

[0008] Optionally, the arched protective frame has an upper surface and a lower surface, a solid area is formed between the upper surface and the lower surface, and the solid area is divided into a first end area, a middle area and a second end area in sequence along the width direction, the lower surface of the first end area is in contact with the first side wall, the lower surface of the second end area is in contact with the second side wall, and there is a distance between the middle area and the upper surface of the wire groove.

[0009] Optionally, the arched protection frame is a solid structure.

[0010] Optionally, the arched protective frame also includes two first pressure-bearing holes, which are respectively arranged at the upper end of the first end zone and the upper end of the second end zone, and the two first pressure-bearing holes are symmetrical about the arch axis of the arched protective frame. The first pressure-bearing holes penetrate the arched protective frame along a first direction, and the first direction is perpendicular to the cross-section of the wire trough assembly.

[0011] Optionally, the cross-section of the upper surface of the arched protective frame forms a first side, the cross-section of the lower surface of the arched protective frame forms a second side, the cross-sectional shape of the first pressure-bearing hole is surrounded by three edges connected in sequence, namely the third side, the fourth side and the fifth side, the third side has the same extension trend as the first side, the fourth side has the same extension trend as the second side, one end of the third side is connected to one end of the fourth side by an arc, and the fifth side is used to connect the other end of the third side and the other end of the fourth side, wherein the fifth side is connected to the other end of the fourth side by an arc.

[0012] Optionally, the arched protective frame also includes two second pressure-bearing holes, wherein a portion of one second pressure-bearing hole is located in the first end area and the other portion is located in the middle area, and a portion of the other second pressure-bearing hole is located in the second end area and the other portion is located between the middle areas, the two second pressure-bearing holes are symmetrical about the arch axis, and the second pressure-bearing holes penetrate the arched protective frame along the first direction.

[0013] Optionally, the cross-sectional shape of the second pressure-bearing hole is surrounded by three edges connected in sequence, namely the sixth side, the seventh side and the eighth side, wherein the seventh side is parallel to the fifth side, the sixth side has the same extension trend as the first side, one end of the seventh side is connected to one end of the sixth side in a circular arc, and the eighth side is connected to the other end of the seventh side and the other end of the sixth side in a circular arc.

[0014] Optionally, the arched protection frame further includes two third pressure-bearing holes, which are respectively arranged between the second pressure-bearing hole and the arch axis, the two third pressure-bearing holes are symmetrical about the arch axis, and the third pressure-bearing holes penetrate the arched protection frame along the first direction.

[0015] Optionally, the cross-sectional shape of the third pressure-bearing hole is surrounded by four edges connected in sequence, namely the ninth side, the tenth side, the eleventh side, and the twelfth side. The tenth side and the twelfth side are arranged opposite to each other in the width direction, and the tenth side and the twelfth side are parallel. The ninth side and the eleventh side are arranged opposite to each other in the height direction. One end of the tenth side is connected to one end of the ninth side in a circular arc, the other end of the tenth side is connected to one end of the eleventh side in a circular arc, one end of the twelfth side is connected to the other end of the ninth side in a circular arc, and the other end of the twelfth side is connected to the other end of the eleventh side in a circular arc, wherein the ninth side has the same extension trend as the first side, and the eleventh side has the same extension trend as the second side.

[0016] Optionally, the arched protection frame further includes two fourth pressure-bearing holes, which are respectively arranged between the third pressure-bearing hole and the arch axis, the two fourth pressure-bearing holes are symmetrical about the arch axis, and the fourth pressure-bearing holes penetrate the arched protection frame along the first direction.

[0017] Optionally, the cross-sectional shape of the fourth pressure-bearing hole is surrounded by four edges connected in sequence, namely the thirteenth side, the fourteenth side, the fifteenth side, and the sixteenth side. The thirteenth side and the fifteenth side are arranged opposite to each other in the height direction. The thirteenth side has the same extension trend as the first side, the fifteenth side has the same extension trend as the second side, the fourteenth side is parallel to the twelfth side, one end of the fourteenth side is connected to one end of the thirteenth side in a circular arc, the other end of the fourteenth side is connected to one end of the fifteenth side in a circular arc, one end of the sixteenth side is connected to the other end of the fifteenth side, the other end of the sixteenth side is connected to the other end of the thirteenth side in a circular arc, and the angle between the fifteenth side and the sixteenth side is an obtuse angle.

[0018] Optionally, the maximum distance between the arched protection frame and the upper surface of the wire trough is 3.5-4.5 mm.

[0019] Optionally, the bottom ends of the first end and the second end of the arched protection frame are lower than 1 / 2 of the height of the wire trough.

[0020] Optionally, the first end and the second end of the arch protection frame are also provided with a first arch hook and a second arch hook, the first arch hook and the second arch hook are arranged opposite to each other in the width direction, the first arch hook is connected to the first end, and the second arch hook is connected to the second end, the arch protection frame also includes two support frames, the two support frames respectively include a third arch hook and a fourth arch hook, the third arch hook and the first arch hook are connected to the outer peripheral wall of the first arch hook through an interference fit, and the fourth arch hook and the second arch hook are connected to the outer peripheral wall of the second arch hook through an interference fit, and the arch protection frame is locked on the wire groove through the interference fit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram showing deformation of a wire duct in the prior art due to long-term use;

[0022] Figure 2 A schematic diagram showing deformation of a cable duct buried underground due to long-term use in the prior art;

[0023] Figure 3 The equivalent stress distribution diagram of the wire duct in the prior art is shown;

[0024] Figure 4 A schematic cross-sectional view of a wire duct assembly in a first embodiment of the present invention is shown. Figure 1 ;

[0025] Figure 5 The equivalent stress distribution diagram of the solid structure arch protection frame in the first embodiment of the present invention is shown;

[0026] Figure 6 A schematic cross-sectional view of a wire duct assembly in a second embodiment of the present invention is shown;

[0027] Figure 7 The equivalent stress distribution diagram of the arch protection frame in the second embodiment of the present invention is shown;

[0028] Figure 8 A schematic cross-sectional view showing a wire duct assembly in a third embodiment of the present invention Figure 1 ;

[0029] Fig. 9 A schematic cross-sectional view showing a wire duct assembly in a third embodiment of the present invention Figure 2 ;

[0030] Fig.10 A schematic cross-sectional view showing a wire duct assembly in a third embodiment of the present invention Figure 3 ;

[0031] Fig.11 A schematic cross-sectional view showing a wire duct assembly in a third embodiment of the present invention Figure 4 ;

[0032] Fig.12 A schematic cross-sectional view showing a wire duct assembly in a third embodiment of the present invention Figure 5 ;

[0033] Fig.13 A schematic cross-sectional view showing a wire duct assembly in a third embodiment of the present invention Figure 6 ;

[0034] Fig.14 A schematic cross-sectional view showing a wire duct assembly in a third embodiment of the present invention Figure 7 ;

[0035] Fig.15 A schematic cross-sectional view showing a wire duct assembly in a third embodiment of the present invention Figure 8 ;

[0036] Fig.16 A schematic cross-sectional view showing a wire duct assembly in a third embodiment of the present invention Figure 9 ;

[0037] Fig.17 The equivalent stress distribution diagram of the arch protection frame in the third embodiment of the present invention is shown;

[0038] Fig.18 A schematic cross-sectional view of a wire duct assembly in a fourth embodiment of the present invention is shown;

[0039] Fig.19 The equivalent stress distribution diagram of the arch protection frame in the fourth embodiment of the present invention is shown;

[0040] Fig. 20 A schematic cross-sectional view of a wire duct assembly in a fifth embodiment of the present invention is shown;

[0041] Fig.21 The equivalent stress distribution diagram of the arch protection frame in the fifth embodiment of the present invention is shown;

[0042] Fig. 22 A three-dimensional structural diagram showing interference fit between an arched protection frame and a support frame in one embodiment of the present invention;

[0043] Fig.23 A three-dimensional structural diagram showing interference fit between an arched protection frame and a support frame in another embodiment of the present invention;

[0044] Fig.24 A cross-sectional schematic diagram showing the interference fit between the arch protection frame and the support frame in another embodiment of the present invention.

[0045] (Explanation of symbols)

[0046] 1-cable trough assembly, 2-cable trough, 2.1-upper surface of the cable trough, 2.2-first side wall, 2.3-second side wall, 2.4-first straight edge, 2.5-first arc edge, 2.6-second straight edge, 2.7-second arc edge, 3-arch protection frame, 3.1-first end, 3.2-second end, 3.3-upper surface of the arch protection frame, 3.3.1-third straight edge, 3.3.2-sixth arc edge, 3.3.3-fourth straight edge, 3.4-lower surface of the arch protection frame, 3.4.1-third arc edge, 3.4.2-fourth arc edge, 3.4.3 fifth arc edge, 4-solid area, 4.1-first end area, 4.2-middle area, 4.3-second end area, 5-first pressure-bearing hole, 6- The first side, 7-the second side, 5.1-the third side, 5.2-the fourth side, 5.3-the fifth side, 8-the second pressure-bearing hole, 8.1-the sixth side, 8.2-the seventh side, 8.3-the eighth side, 9-the third pressure-bearing hole, 9.1-the ninth side, 9.2-the tenth side, 9.3-the eleventh side, 9.4-the twelfth side, 10-the fourth pressure-bearing hole, 10.1-the thirteenth side, 10.2-the fourteenth side, 10.3-the fifteenth side, 10.4-the sixteenth side, 11-the first arched hook, 12-the second arched hook, 13-the supporting frame, 14-the third arched hook, 15-the fourth arched hook, X-the width direction, Z-the height direction, Y-the first direction, A-the arch axis, H-the height of the cable trough, H1-the height of the arched protection frame. DETAILED DESCRIPTION

[0047] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0048] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0049] It should be noted that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0050] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0051] In the description of this embodiment, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0052] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0053] like Figure 1-Figure 2 As shown, the existing cable duct will be deformed, such as bending or twisting, after being subjected to external loads (such as weight, pressure) for a long time, which will cause stress concentration at the edges or sharp corners of the deformation area, which will easily lead to the formation of cracks, and cracks or cracks will appear over time. Once cracks or cracks appear, external accumulated water can easily penetrate into the cable duct, causing safety hazards. Based on this, the present invention provides the following technical solutions to solve the above technical problems.

[0054] The present invention provides a wire trough assembly, which has a height direction and a width direction, and the wire trough assembly comprises:

[0055] A cable trough, for allowing cables to pass through, comprising an upper surface and a first side wall and a second side wall arranged opposite to each other in a width direction;

[0056] The arched protective frame has a first end and a second end arranged opposite to each other along the width direction, the first end is connected to the first side wall, and the second end is connected to the second side wall. The arched protective frame spans from the first side wall to the second side wall, covers the upper surface of the wire trough, and has a distance from the upper surface of the wire trough.

[0057] The present invention arranges an arched protection frame on the wire trough, that is, covers the upper surface of the wire trough with the arched protection frame, so that there is a gap between the arched protection frame and the upper surface of the wire trough. On the one hand, the arched structure of the arched protection frame can effectively convert the vertical load (such as weight, pressure) applied thereon into a force distributed along the arched structure, that is, the arched structure can evenly distribute the external load to the entire arched protection frame structure, thereby effectively avoiding the stress concentration at a certain point of the arched protection frame, and then the arched protection frame can protect the wire trough from the impact of the external load, greatly reducing the potential safety hazard. On the other hand, when the arched protection frame is impacted by the external load, it will produce a certain deformation downward, and the arched space (the area formed between the lower surface of the arched protection frame and the upper surface of the wire trough) provides a certain receiving space for this deformation, so that even if the arched protection frame is deformed, the arched protection frame will not directly exert pressure on the upper surface of the wire trough to cause the upper surface of the wire trough to deform, thereby preventing the line inside the wire trough from being impacted by the external load, thereby reducing the potential safety hazard.

[0058] The above technical solution is described in detail below in conjunction with the accompanying drawings.

[0059] like Figure 4 As shown, the present invention discloses a wire trough assembly 1. The wire trough assembly 1 has a height direction (e.g. Figure 4 , Figure 8-Figure 14 , Fig.16 and Figure 22-Figure 23 The Z direction shown in FIG. 1 ) and the width direction (eg Figure 4 , Figure 8-Figure 14 , Fig.16 and Figure 22-Figure 23 X direction shown in ). The wire trough assembly 1 includes a wire trough 2 and an arched protective frame 3. The wire trough 2 is used for cables to pass through, and has an upper surface 2.1 and a first side wall 2.2 and a second side wall 2.3 arranged opposite to each other along the width direction. The arched protective frame 3 has a first end 3.1 and a second end 3.2 arranged opposite to each other along the width direction. The first end 3.1 is connected to the first side wall 2.2, and the second end 3.2 is connected to the second side wall 2.3. The arched protective frame 3 spans from the first side wall 2.2 to the second side wall 2.3, covering the upper surface 2.1 of the wire trough 2. There is a distance between the arched protective frame 3 and the upper surface 2.1 of the wire trough 2. Specifically, the upper surface 2.1 of the wire trough 2 is a plane, and the upper surface 3.3 and the lower surface 3.4 of the arched protective frame 3 are both arched. The present invention arranges an arched protection frame 3 on the wire duct 2, that is, the arched protection frame 3 covers the upper surface 2.1 of the wire duct 2, so that there is a distance between the arched lower surface 3.4 of the arched protection frame 3 and the upper surface 2.1 of the wire duct 2.

[0060] By adopting the above technical solution, on the one hand, the arched structure of the arched protection frame 3 can effectively convert the vertical load (such as weight, pressure) applied thereon into a force distributed along the arched structure, that is, the arched structure can evenly distribute the external load to the entire arched protection frame 3 structure, thereby effectively avoiding the stress concentration at a certain point of the arched protection frame 3, so that the arched protection frame 3 can protect the wire trough 2 from the impact of the external load, greatly reducing the potential safety hazard. On the other hand, when the arched protection frame 3 is impacted by the external load, it will produce a certain deformation downward, and the arched space (the area formed between the lower surface 3.4 of the arched protection frame 3 and the upper surface 2.1 of the wire trough 2) provides a certain receiving space for such deformation. Therefore, even if the arched protection frame 3 is deformed, the arched protection frame 3 will not directly exert pressure on the upper surface 2.1 of the wire trough 2 to cause the upper surface 2.1 of the wire trough 2 to deform, thereby preventing the line inside the wire trough 2 from being impacted by the external load, thereby reducing the potential safety hazard.

[0061] In some possible embodiments provided by the present invention, Figure 4 As shown, the arched protection frame 3 has an upper surface 3.3 and a lower surface 3.4. A solid area 4 is formed between the upper surface 3.3 and the lower surface 3.4. The solid area 4 refers to a solid structure. In other words, there is no hollow structure between the upper surface 3.3 and the lower surface 3.4. Specifically, the space between the upper surface 3.3 and the lower surface 3.4 is filled with the manufacturing material of the arched protection frame 3.

[0062] The physical region 4 is arranged along the width direction (eg Figure 4 , Figure 8-Figure 14 , Fig.16 and Figure 22-Figure 23 The first end region 4.1 is the region from the first end 3.1 of the arch protection frame 3 to the dotted line B along the width direction. The middle region 4.2 is the region from the dotted line B to the dotted line C along the width direction. The second end region 4.3 is the region from the dotted line C to the second end 3.2 of the arch protection frame 3 along the width direction.

[0063] The lower surface 3.4 of the first end area 4.1 is in contact with the first side wall 2.2, and the lower surface 3.4 of the second end area 4.3 is in contact with the second side wall 2.3. There is a gap between the middle area 4.2 and the upper surface 2.1 of the wire trough 2. That is to say, since the arched protection frame 3 is arched, the two ends (the first end 3.1 and the second end 3.2) of the arched protection frame 3 in the width direction X are closely in contact with the two ends of the wire trough 2 in the width direction X, so that the arched protection frame 3 can be stably installed on the wire trough 2, covering the wire trough 2, protecting the wire trough 2, protecting the wire trough 2 from the impact of external loads, and greatly reducing safety hazards. In addition, since the lower surface 3.4 of the arched protection frame 3 is arched and the upper surface 2.1 of the wire trough 2 is a plane, there is a gap between the middle area 4.2 and the upper surface 2.1 of the wire trough 2. This gap allows the arched protection frame 3 to have space to receive the deformation of the arched protection frame 3 when subjected to external loads, protecting the wire trough 2 from external loads and preventing the wire trough 2 from deformation.

[0064] In some other possible embodiments provided by the present invention, such as Figure 4 As shown, the arched protection frame 3 is a solid structure. The arched protection frame 3 of a solid structure has a greater ability to resist pressure, that is, when the arched protection frame 3 of a solid structure is set on the wire duct 2, even if the arched protection frame 3 is subjected to external force, the arched protection frame 3 will only produce a small deformation. The deformation of the arched protection frame 3 is small, and the arched space of the arched protection frame provides sufficient receiving space for the small deformation, thereby protecting the wire duct 2 from external impact, thereby reducing safety hazards.

[0065] In some other possible embodiments provided by the present invention, such as Figure 6 , Figure 8 and Fig.16 As shown, the arched protection frame 3 further includes two first pressure-bearing holes 5, which are respectively arranged at the upper end of the first end area 4.1 and the upper end of the second end area 4.3. The two first pressure-bearing holes 5 are symmetrical about the arch axis of the arched protection frame 3 (the symmetry axis of the arched protection frame, for example Figure 4 , Figure 8 and Figure 11-Figure 16 The first pressure-bearing hole 5 is symmetrical along the first direction (e.g. Figure 22-Figure 23 The first direction (in the Y direction) penetrates the arched protection frame 3, and the first direction is perpendicular to the cross section of the wire trough assembly 1. The first pressure-bearing hole 5 is arranged on the arched protection frame 3, which can not only ensure that the arched protection frame 3 has a good pressure resistance effect, but also reduce the weight of the arched protection frame 3, thereby facilitating transportation and installation and reducing production costs.

[0066] In some other possible embodiments provided by the present invention, such as Figure 8As shown, the cross section of the upper surface 3.3 of the arched protective frame 3 forms a first side 6, and the cross section of the lower surface 3.4 of the arched protective frame 3 forms a second side 7. The cross-sectional shape of the first pressure-bearing hole 5 is surrounded by three sides connected in sequence, namely the third side 5.1, the fourth side 5.2 and the fifth side 5.3. The third side 5.1 has the same extension trend as the first side 6, and the fourth side 5.2 has the same extension trend as the second side 7. One end of the third side 5.1 is connected to one end of the fourth side 5.2 in an arc, and the fifth side 5.3 is used to connect the other end of the third side 5.1 and the other end of the fourth side 5.2. Among them, the fifth side 5.3 is connected to the other end of the fourth side 5.2 in an arc. The fifth side 5.3 can be a straight side. The present invention further ensures that the arched protective frame 3 has a good pressure resistance effect by designing the shape of the first pressure-bearing hole 5.

[0067] Specifically, Fig. 9 As shown, the cross-sectional shape of the wire slot 2 is surrounded by a first straight edge 2.4, a first arc edge 2.5, a second straight edge 2.6 and a second arc edge 2.7 connected in sequence. The first straight edge 2.4 and the second straight edge 2.6 are arranged opposite to each other in the height direction, i.e., the Z direction, and the first straight edge 2.4 and the second straight edge 2.6 are parallel. The first arc edge 2.5 and the second arc edge 2.7 are arranged opposite to each other in the width direction, i.e., the X direction, and the first arc edge 2.5 and the second arc edge 2.7 protrude outward in opposite directions in the width direction and are symmetrical about the arch axis.

[0068] like Figure 8 As shown, the cross-sectional shape of the upper surface 3.3 of the arch protection frame 3 is composed of a third straight edge 3.3.1, a sixth arc edge 3.3.2 and a fourth straight edge 3.3.3. The third straight edge 3.3.1 and the fourth straight edge 3.3.3 are arranged opposite to each other along the width direction, and the third straight edge 3.3.1 and the fourth straight edge 3.3.3 are parallel. The third straight edge 3.3.1 is connected to the sixth arc edge 3.3.2 in an arc. Among them, the third edge 5.1 has the same extension trend as the arc, which is equivalent to forming an arch structure between the third edge 5.1 and the arc, thereby increasing the compression resistance of the arch protection frame 3; the fourth straight edge 3.3.3 is connected to the sixth arc edge 3.3.2 in an arc, and the fourth edge 5.2 has the same extension trend as the arc, which is equivalent to forming an arch structure between the fourth edge 5.2 and the arc, thereby further increasing the compression resistance of the arch protection frame 3.

[0069] Recombination Fig.10The cross-sectional shape of the lower surface 3.4 of the arch protection frame 3 is composed of a third arc edge 3.4.1, a fourth arc edge 3.4.2 and a fifth arc edge 3.4.3. Among them, the third arc edge 3.4.1 and the fifth arc edge 3.4.3 protrude outward in opposite directions in the width direction, i.e., the X direction, and are symmetrical along the arch axis. When the lower surface 3.4 of the first end area 4.1 is in contact with the first side wall 2.2, the third arc edge 3.4.1 coincides with the first arc edge 2.5; when the lower surface 3.4 of the second end area 4.3 is in contact with the second side wall 2.3, the fifth arc edge 3.4.3 coincides with the second arc edge 2.7. In this way, the arch protection frame 3 can be stably installed on the wire groove 2.

[0070] As described above, when the arched protective frame is subjected to an external load, it will deform downward to a certain extent, and the arched space (i.e., the area formed between the arched protective frame 3 and the upper surface 2.1 of the wire trough 2) provides a certain receiving space for this deformation. Even if the arched protective frame 3 is deformed, the arched protective frame 3 will not directly exert pressure on the upper surface 2.1 of the wire trough 2 to cause deformation of the upper surface 2.1 of the wire trough 2, thereby preventing the lines inside the wire trough 2 from being impacted by the external load and reducing potential safety hazards. Compared with an arched protective frame with a solid structure (i.e., an arched protective frame without a first pressure-bearing hole), the arched protective frame 3 in this embodiment has the advantages of being easy to carry and install and having a low cost while meeting a good pressure resistance.

[0071] In some other possible embodiments provided by the present invention, such as Figure 6 and Fig.16 As shown, the arched protection frame 3 also includes two second pressure-bearing holes 8, a portion of one second pressure-bearing hole 8 is located in the first end area 4.1, and the other portion is located in the middle area 4.2; a portion of the other second pressure-bearing hole 8 is located in the second end area 4.3, and the other portion is located between the middle areas 4.2. The two second pressure-bearing holes 8 are symmetrical about the arch axis. The second pressure-bearing hole 8 penetrates the arched protection frame 3 along the first direction Y. Providing the second pressure-bearing holes 8 on the arched protection frame 3 can reduce the weight of the arched protection frame 3 and reduce the production cost of the arched protection frame 3.

[0072] In some other possible embodiments provided by the present invention, such as Fig.11As shown, the cross-sectional shape of the second pressure-bearing hole 8 is surrounded by three edges connected in sequence, namely the sixth edge 8.1, the seventh edge 8.2 and the eighth edge 8.3. Among them, the seventh edge 8.2 is parallel to the fifth edge 5.3, and the seventh edge 8.2 can be a straight edge. The sixth edge 8.1 has the same extension trend as the first edge 6. One end of the seventh edge 8.2 is connected to one end of the sixth edge 8.1 in an arc, and the eighth edge 8.3 is connected to the other end of the seventh edge 8.2 and the other end of the sixth edge 8.1 in an arc. The present invention designs the shape of the second pressure-bearing hole 8, while reducing the weight of the arch protection frame 3 and ensuring that the arch protection frame 3 has a good pressure resistance effect.

[0073] For example, reference Figure 8 and Fig.11 The third side 5.1, the fourth side 5.2, the sixth side 8.1 and the eighth side 8.3 are all arcuate sides. The arcuate sides and the upper surface 3.3 form an arch structure, and since the arch structure has better pressure resistance, the overall pressure resistance of the arch protection frame 3 is further improved.

[0074] Continue to refer Figure 8 and Fig.11 , the seventh side 8.2 and the fifth side 5.3 are straight lines. More specifically, the seventh side 8.2 and the fifth side 5.3 are straight lines parallel to each other, that is, there is a spacing between the fifth side 5.3 and the seventh side 8.2, that is, consumables are filled between the two sides, and the space between the two sides is a solid structure. In other words, there is a spacing between the first pressure-bearing hole 5 and the second pressure-bearing hole 8, that is, consumables are filled between the first pressure-bearing hole 5 and the second pressure-bearing hole 8, and the space between the two holes is a solid structure, and the solid structure forms a reinforcing rib, which has the effect of further improving the pressure resistance of the arch protection frame 3.

[0075] In some other possible embodiments provided by the present invention, such as Figure 6 and Fig.12 As shown, the arched protection frame 3 also includes two third pressure-bearing holes 9. The two third pressure-bearing holes 9 are respectively arranged between the second pressure-bearing hole 8 and the arch axis. The two third pressure-bearing holes 9 are symmetrical about the arch axis. The third pressure-bearing hole 9 penetrates the arched protection frame 3 along the first direction Y. The third pressure-bearing holes 9 are arranged on the arched protection frame 3, which can reduce the weight of the arched protection frame 3.

[0076] In some other possible embodiments provided by the present invention, such as Fig.12As shown, the cross-sectional shape of the third pressure-bearing hole 9 is surrounded by four edges connected in sequence, namely the ninth side 9.1, the tenth side 9.2, the eleventh side 9.3, and the twelfth side 9.4. The tenth side 9.2 and the twelfth side 9.4 are arranged opposite to each other along the width direction, and the tenth side 9.2 is parallel to the twelfth side 9.4. The ninth side 9.1 and the eleventh side 9.3 are arranged opposite to each other along the height direction. One end of the tenth side 9.2 is connected to one end of the ninth side 9.1 in an arc, the other end of the tenth side 9.2 is connected to one end of the eleventh side 9.3 in an arc, one end of the twelfth side 9.4 is connected to the other end of the ninth side 9.1 in an arc, and the other end of the twelfth side 9.4 is connected to the other end of the eleventh side 9.3 in an arc. Among them, the ninth side 9.1 has the same extension trend as the first side 6, and the eleventh side 9.3 has the same extension trend as the second side 7. The third pressure-bearing hole 9 is arranged as Fig.12 The shape shown is not only convenient for mold opening, but also has a good pressure resistance effect. More specifically, the ninth side 9.1 is an arcuate side, which forms an arch structure together with the upper surface 3.3; the eleventh side 9.3 is also an arcuate side, which forms an arch structure together with the lower surface 3.4. Since the arch structure has a better pressure resistance, the overall pressure resistance effect of the arch protection frame 3 can be further improved.

[0077] In some other possible embodiments provided by the present invention, such as Fig.15 As shown, the arched protection frame 3 also includes two fourth pressure-bearing holes 10. The two fourth pressure-bearing holes 10 are respectively arranged between the third pressure-bearing hole 9 and the arch axis, and the two fourth pressure-bearing holes 10 are symmetrical about the arch axis. The fourth pressure-bearing hole 10 penetrates the arched protection frame along the first direction Y. Providing the fourth pressure-bearing hole 10 on the arched protection frame 3 can not only ensure that the arched protection frame 3 has a good pressure resistance effect, but also reduce the weight of the arched protection frame 3, thereby facilitating transportation and installation and reducing production costs.

[0078] In some other possible embodiments provided by the present invention, such as Fig.14As shown, the cross-sectional shape of the fourth pressure-bearing hole 10 is surrounded by four sides connected in sequence, namely the thirteenth side 10.1, the fourteenth side 10.2, the fifteenth side 10.3, and the sixteenth side 10.4. The thirteenth side 10.1 and the fifteenth side 10.3 are arranged opposite to each other in the height direction, and the thirteenth side 10.1 has the same extension trend as the first side 6. The fifteenth side 10.3 has the same extension trend as the second side 7. The fourteenth side 10.2 is parallel to the twelfth side 9.4, one end of the fourteenth side 10.2 is connected to one end of the thirteenth side 10.1 in an arc, and the other end of the fourteenth side 10.2 is connected to one end of the fifteenth side 10.3 in an arc. One end of the sixteenth side 10.4 is connected to the other end of the fifteenth side 10.3, and the other end of the sixteenth side 10.4 is connected to the other end of the thirteenth side 10.1 in an arc, and the angle between the fifteenth side 10.3 and the sixteenth side 10.4 is an obtuse angle. More specifically, the thirteenth side 10.1 of the fourth pressure-bearing hole 10 is an arcuate side, and forms an arch structure with the upper surface 3.3; the fifteenth side 10.3 is an arcuate side, and forms an arch structure with the lower surface 3.4. Since the arch structure has better pressure resistance, the overall pressure resistance of the arch protection frame 3 can be further improved.

[0079] Furthermore, if Fig.14 As shown, the two fourth pressure-bearing holes 10 are symmetrical about the arch axis, a spacing is provided between the two fourth pressure-bearing holes 10, and the sixteenth side 10.4 is an arc-shaped side. This is equivalent to filling the space between the two fourth pressure-bearing holes 10, and the space between the two fourth pressure-bearing holes 10 is a solid structure, which forms a reinforcing rib. Moreover, the reinforcing rib retains arcs on the two outer sides along the width direction, i.e., the X direction, and the reinforcing rib is an arched structure, which further improves the overall compression resistance of the arched protective frame 3.

[0080] In some other possible embodiments provided by the present invention, such as Fig.13 and Fig. 20 As shown, the arched protective frame 3 and the upper surface 2.1 of the wire trough 2 have a maximum spacing d. Among them, the intersection of the lower surface 3.4 of the arched protective frame 3 and the arch axis A is a, and the intersection of the upper surface 2.1 of the wire trough 2 and the arch axis A is b, and the distance from a to b is the maximum spacing d from the lower surface 3.4 of the arched protective frame 3 to the upper surface 2.1 of the wire trough 2. Specifically, the maximum spacing d between the lower surface 3.4 of the arched protective frame 3 and the upper surface 2.1 of the wire trough 2 is 3.5-4.5mm. With this arrangement, it can be ensured that the arched protective frame 3 has a good pressure resistance effect, and sufficient arched space is provided for receiving the deformation of the arched protective frame 3. Sufficient arched space means that when subjected to external pressure, the arched protective frame 3 can be deformed to a certain extent without damaging or affecting the structural integrity of the arched protective frame 3 itself, so that it can be installed on the wire trough 2 more stably.

[0081] Further, Figure 22 to Figure 23 2 shows a schematic diagram of the structure of the arch protection frame 3. It should be noted that the arch protection frame 3 is always located above the wire trough 2, covering the upper surface 2.1 of the wire trough 2. That is, the wire trough 2 is along the first direction ( Figure 22-Figure 23 The arched protection frame 3 extends in the extension direction Y of the wire trough 2. The arched protection frame 3 can prevent the wire trough 2 from being impacted by external forces.

[0082] In some possible embodiments provided by the present invention, Fig.13 As shown, the bottom ends of the first end 3.1 and the second end 3.2 of the arched protective frame 3 are lower than 1 / 2 of the height H of the wire trough 2. That is to say, the height H1 of the arched protective frame 3 in the height direction, i.e., the Z direction, is greater than 1 / 2 of the height H of the wire trough 2, i.e., H / 2. This structural setting makes it easy for the staff to accurately install the arched protective frame 3 on the wire trough 2. Specifically, when the arched protective frame 3 is installed on the wire trough 2, the arched protective frame 3 will apply a downward force, which will cause the bottom ends of the first end 3.1 and the second end 3.2 of the arched protective frame 3 to be buckled at 1 / 2 of the height of the wire trough 2. Then, the force from top to bottom will continue to be applied, and the bottom ends of the first end 3.1 and the second end 3.2 of the arched protective frame 3 will continue to move downward. When the bottom end of the arched protective frame 3 passes 1 / 2 of the height of the wire trough 2, the arched protective frame 3 can be firmly installed on the wire trough 2.

[0083] Furthermore, if Fig.24 As shown, in the above embodiments, the first end 3.1 and the second end 3.2 of the arch protection frame 3 are also provided with a first arch hook 11 and a second arch hook 12, and the first arch hook 11 and the second arch hook 12 are arranged opposite to each other along the width direction, the first arch hook 11 is connected to the first end 3.1, and the second arch hook 12 is connected to the second end 3.2.

[0084] The wire trough assembly includes the aforementioned wire trough 2, the arched protection frame 3, and also includes a support frame 13. Exemplarily, there are two support frames 13, the two support frames 13 are arranged opposite to each other along the width direction X, and the two support frames 13 respectively include a third arched hook 14 and a fourth arched hook 15, the third arched hook 14 and the first arched hook 11 are sleeved on the outer peripheral wall of the first arched hook 11 through interference fit, and the fourth arched hook 15 and the second arched hook 12 are sleeved on the outer peripheral wall of the second arched hook 12 through interference fit, and the two support frames 13 are respectively locked with the two arched hooks through interference fit, thereby realizing that the arched protection frame 3 is locked on the wire trough 2.

[0085] In some possible embodiments provided by the present invention, the support frames 13 are arranged at preset appropriate intervals, so that the arched protection frame 3 can evenly bear and disperse the pressure in the first direction (ie, the Y direction).

[0086] The support frames 13 appear in pairs, that is, the two support frames 13 are arranged opposite to each other along the width direction (ie, the X direction). And along the first direction (ie, the Y direction), the support frames 13 can be arranged at any position on the arch protection frame 3. For example, referring to Fig.23 , the support frame 13 is arranged at both ends of the arch protection frame 3 along the first direction (ie, the Y direction). Fig. 22 The support frame 13 is arranged at any position on the arch protection frame 3 except the aforementioned two ends.

[0087] Combine the following Figure 4 The first embodiment shown, Figure 6 The second embodiment shown, Figure 8-Figure 16 The third embodiment shown, Fig.18 The fourth embodiment shown, Fig. 20 The fifth embodiment shown specifically introduces the structure of the arch protection frame in each embodiment and its finite element mechanical simulation test. Among them, the first to fourth embodiments are arch protection frames suitable for wire ducts of the same size. Exemplarily, the size of the arch protection frame in the first to fourth embodiments is 160cm*60cm.

[0088] At the same time, finite element mechanical simulation tests are also performed on the existing cable duct (the cable duct is not provided with an arch protection frame) for comparison.

[0089] It should be noted that, in practice, the maximum weight of an engineering transport vehicle is 20 tons, and the pressure of each tire of the vehicle on the wire groove 2 is 5 tons. Therefore, in order to explore the deformation of the arch protection frame 3 in the first to fifth embodiments and the existing wire groove (the wire groove is not provided with an arch protection frame) under external force, a finite mechanics simulation experiment is performed using an external force of 5 tons. The force test results of the arch protection frame in the first to fifth embodiments are as follows: Figure 5 , Figure 7 , Fig.17 , Fig.19 , Fig.21 The stress test results of the existing cable duct (the cable duct is not provided with an arch protection frame) are shown as follows: Figure 3 shown.

[0090] according to Figure 3 It can be seen that the existing cable duct (without an arched protective frame) has a maximum deformation of 5.07237 mm when subjected to an external force of 5 tons. The large deformation means that the cable duct is at risk of deformation and cracking as mentioned above when subjected to an external force of 5 tons, which poses a safety hazard.

[0091] like Figure 4As shown, the first embodiment of the present invention provides an arched protection frame 3 of a solid structure. The maximum spacing in the arched space of the arched protection frame is 4 mm. Figure 5 It can be seen that the arched protective frame 3 of the solid structure provided in the first embodiment has a maximum deformation of 0.566702mm when subjected to an external force of 5 tons. This means that the arched protective frame 3 of the solid structure is set on the wire groove 2, and even if the arched protective frame 3 is subjected to an external force of 5 tons, the arched protective frame 3 will only produce a deformation not exceeding 0.566702mm. Since the arched protective frame 3 of the solid structure has a greater compressive resistance, the deformation of the arched protective frame 3 of the solid structure is smaller when subjected to an external force of 5 tons. Since the arched space of the arched protective frame is controlled within the range of 3.5-4.5mm, sufficient receiving space can be provided for smaller deformations, thereby protecting the wire groove 2 from external impacts, thereby reducing safety hazards.

[0092] In the first embodiment, although the arched protection frame 3 of the solid structure has a small deformation amount and good pressure resistance, it is heavy, has certain difficulties in transportation and installation, and has high cost.

[0093] To this end, the inventor has conducted explorations, hoping to provide an arched protective frame that can both meet the pressure resistance requirements and reduce its own weight.

[0094] refer to Figure 6 The second embodiment of the present invention provides an arched protective frame 3. The arched protective frame 3 includes the arched space mentioned above and two first pressure-bearing holes 5, two second pressure-bearing holes 8 (wherein the fifth side 5.3 and the seventh side 8.2 are straight lines parallel to each other; the third side 5.1, the fourth side 5.2, the sixth side 8.1 and the eighth side 8.3 are all arcuate sides), and two third pressure-bearing holes 9 (the ninth side 9.1 is an arcuate side, forming an arched structure together with the upper surface 3.3; the eleventh side 9.3 is also an arcuate side, forming an arched structure together with the lower surface 3.4). In the arched space, the lower surface 3.4 of the arched protective frame 3 is spaced apart from the upper surface 2.1 of the wire trough 2. Wherein, the lower surface 3.4 of the arched protective frame 3 is spaced apart from the arch axis A (such as Figure 4 , Figure 8 and Figure 11-Figure 16 The intersection of the dotted line A) shown in FIG. 1 to the upper surface 2.1 of the wire groove 2 and the arch axis A (as shown in FIG. Figure 4 , Figure 8 and Figure 11-Figure 16 The distance between the intersections of the dotted lines A) shown in FIG. 1 is the maximum spacing d1 from the lower surface 3.4 of the arched protection frame 3 to the upper surface 2.1 of the wire trough 2. In this embodiment, the maximum spacing d1 in the arched space is 8.9 mm. The maximum spacing d1 of the arched space is large, so that the thickness from the upper surface 3.3 to the lower surface 3.4 of the arched protection frame 3 is small.

[0095] Since this embodiment designs the fifth side 5.3 and the seventh side 8.2 as straight lines parallel to each other, and a solid structure is formed between the two sides, the solid structure forms reinforcing ribs, thereby improving the compressive resistance. At the same time, this embodiment designs the third side 5.1, the fourth side 5.2, the sixth side 8.1 and the eighth side 8.3 as arcuate sides, and the arcuate sides and the upper surface 3.3 together form an arch structure to further improve the compressive resistance. Then, the ninth side 9.1 is designed as an arcuate side, and the ninth side 9.1 and the upper surface 3.3 together form an arch structure, and the eleventh side 9.3 is also designed as an arcuate side, and together with the lower surface 3.4, it forms an arch structure to further improve the compressive resistance effect. Finally, when the arch protection frame 2 in this embodiment is subjected to an external force of 5 tons, the maximum deformation is 1.49324mm (reference Figure 7 , the equivalent stress test result of the arch protection frame 3 provided in the second embodiment is 1.49324mm), that is, when the arch protection frame of this structure is subjected to an external force of 5 tons, the maximum deformation is 1.49324mm. Although its maximum deformation is larger than that of the arch protection frame of the solid structure, the arch protection frame of this deformation can already meet the pressure resistance requirements in practice. At the same time, the arch protection frame of this structure also has advantages that the arch protection frame of the solid structure provided in the first embodiment does not have, such as reducing weight, reducing costs, and facilitating construction. In addition, since the maximum spacing d1 of the arch space of the arch protection frame of this embodiment is relatively large, it can provide sufficient receiving space for smaller deformations, thereby protecting the cable duct 2 from external impacts, thereby reducing safety hazards.

[0096] refer to Figures 8 to 16 The third embodiment of the present invention provides an arch protection frame 3. The arch protection frame 3 includes the arch space mentioned above and two first pressure-bearing holes, two second pressure-bearing holes (wherein the fifth side 5.3 and the seventh side 8.2 are straight lines parallel to each other; the third side 5.1, the fourth side 5.2, the sixth side 8.1 and the eighth side 8.3 are all arcuate sides), two third pressure-bearing holes (the ninth side 9.1 is an arcuate side, forming an arch structure together with the upper surface 3.3; the eleventh side 9.3 is also an arcuate side, forming an arch structure together with the lower surface 3.4) and two fourth pressure-bearing holes (the thirteenth side 10.1 is an arcuate side, forming an arch structure together with the upper surface 3.3; the fifteenth side 10.3 is an arcuate side, forming an arch structure together with the lower surface 3.4).

[0097] like Fig.13As shown, the arched protective frame 3 has a maximum spacing d with the upper surface 2.1 of the wire trough 2. Specifically, the intersection of the lower surface 3.4 of the arched protective frame 3 and the arch axis A is a, and the intersection of the upper surface 2.1 of the wire trough 2 and the arch axis A is b, and the distance from a to b is the maximum spacing d from the lower surface 3.4 of the arched protective frame 3 to the upper surface 2.1 of the wire trough 2. In this embodiment, the maximum spacing d between the lower surface 3.4 of the arched protective frame 3 and the upper surface 2.1 of the wire trough 2 is 4 mm. Since this embodiment further provides a fourth pressure-bearing hole in the arched protective frame, and at the same time, the thirteenth side 10.1 of the fourth pressure-bearing hole is designed as an arcuate side, and the arcuate side forms an arch structure with the upper surface 3.3; and the fifteenth side 10.3 is also designed as an arcuate side, and the arcuate side forms an arch structure with the lower surface 3.4, because the arch structure has a better pressure resistance effect. Therefore, the final embodiment is that, compared with the second embodiment, the arched protection frame in this embodiment has a smaller deformation amount (refer to Fig.17 , the equivalent stress test result of the arch protection frame 3 provided in the third embodiment is 1.23086mm. That is, when the arch protection frame of this structure is subjected to an external force of 5 tons, the maximum deformation is 1.23086mm, which means better compression resistance, lighter weight, lower production cost, and more convenient installation. In addition, since this embodiment controls the maximum spacing d of the arch space of the arch protection frame within the range of 3.5-4.5mm, it can provide sufficient receiving space for smaller deformation, thereby protecting the wire duct 2 from external impact, thereby reducing safety hazards.

[0098] refer to Fig.18 , the fourth embodiment of the present invention provides an arch protection frame 3. The arch protection frame 3 includes the arch space mentioned above and two first pressure-bearing holes, two second pressure-bearing holes (wherein the fifth side 5.3 and the seventh side 8.2 are straight lines parallel to each other; the third side 5.1, the fourth side 5.2, the sixth side 8.1 and the eighth side 8.3 are all arcuate sides), two third pressure-bearing holes (the ninth side 9.1 is an arcuate side, forming an arch structure together with the upper surface 3.3; the eleventh side 9.3 is also an arcuate side, forming an arch structure together with the lower surface 3.4) and two fourth pressure-bearing holes (the thirteenth side 10.1 is an arcuate side, forming an arch structure together with the upper surface 3.3; the fifteenth side 10.3 is an arcuate side, forming an arch structure together with the lower surface 3.4).

[0099] In this embodiment, there is a gap between the lower surface 3.4 of the arched protection frame 3 and the upper surface 2.1 of the wire trough 2. The distance between the intersection of the lower surface 3.4 of the arched protection frame 3 and the arch axis A to the intersection of the upper surface 2.1 of the wire trough 2 and the arch axis A is the maximum gap d2 between the lower surface 3.4 of the arched protection frame 3 and the upper surface 2.1 of the wire trough 2. The maximum gap d2 is relatively large. Exemplarily, the maximum gap d2 is 7.9 mm, so that the thickness from the upper surface 3.3 of the arched protection frame 3 to the lower surface 3.4 is relatively small.

[0100] Compared with the third embodiment, the fourth embodiment is different in that the distance between the intersection of the lower surface 3.4 of the arch protection frame 3 and the arch axis A to the intersection of the upper surface 2.1 of the wire groove 2 and the arch axis A is set. Fig.18 The fourth embodiment shown, and Figures 8 to 16 The fourth embodiment is an analysis of the arched space (i.e. Fig.18 In other words, the third embodiment is to fill a part of the arched space shown in the fourth embodiment with a solid body as a reinforcing rib. Therefore, in the third embodiment, in the filled arched space, the maximum distance d between the lower surface 3.4 of the arched protection frame 3 and the upper surface 2.1 of the wire trough 2 is small, d<d2. That is, Figures 8 to 16 The thickness of the middle region of the arched protection frame 3 in the third embodiment shown is increased.

[0101] Refer to Fig.19 , the equivalent stress test result of the arch protection frame 3 provided in the fourth embodiment is 1.36165mm, that is, when the arch protection frame 3 of this structure is subjected to an external force of 5 tons, the maximum deformation is 1.36165mm. It can be seen that the compressive resistance of the arch protection frame in the third embodiment is better than that of the arch protection frame in the fourth embodiment. The reason is that the third embodiment controls the maximum spacing d of the arch space of the arch protection frame within the range of 3.5-4.5mm, which ultimately reflects that the compressive resistance of the arch protection frame in the third embodiment is better than that of the arch protection frame in the fourth embodiment.

[0102] In summary, from the above four embodiments, it can be seen that the solid arched protection frame provided in the first embodiment has the best compression resistance. The arched protection frame 3 provided in the third embodiment has both better compression resistance and lighter weight and lower production cost.

[0103] It can be seen that the structure of the arched protection frame 3 is designed as Figures 8 to 16The structure shown (including an arched space, and the maximum spacing d of the arched space is in the range of 3.5-4.5 mm; also including the two first pressure-bearing holes 5, two second pressure-bearing holes 8, two third pressure-bearing holes 9 and two fourth pressure-bearing holes 10 as described above) is more conducive to optimizing the compressive performance of the arched protective frame 3, while also reducing production costs and facilitating installation.

[0104] refer to Fig. 20 The fifth embodiment of the present invention provides an arched protection frame 3. The structure of the arched protection frame provided in this embodiment is the same as that of the arched protection frame provided in the third embodiment. The arched protection frame provided in the fifth embodiment is only an adaptive improvement of the size of the arched protection frame provided in the third embodiment in order to be suitable for wire ducts of different sizes. For example, the size of the arched protection frame in the third embodiment is 160cm*60cm, and the size of the arched protection frame in the fifth embodiment is 160cm*35cm.

[0105] Specifically, the arched protection frame provided in the fifth embodiment includes an arched space, and the maximum spacing d in the arched space is 4 mm. The arched protection frame provided in the fifth embodiment also includes two first pressure-bearing holes 5, two second pressure-bearing holes 8, two third pressure-bearing holes 9 and two fourth pressure-bearing holes 10.

[0106] refer to Fig.21 The equivalent stress test result of the arch protection frame 3 provided in the fifth embodiment is 1.35417 mm. That is, when the arch protection frame 3 is subjected to an external force of 5 tons, the minimum node (ie, the maximum deformation) is 1.35417 mm.

[0107] When faced with cable ducts of different sizes, it is only necessary to make adaptive size improvements to the size of the arch protection frame provided in the third embodiment of the present invention. The improved arch protection frame can meet the pressure resistance requirements in practice. At the same time, the arch protection frame of this structure also has the advantages of lightest weight, lowest cost and most convenient construction.

[0108] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A wire trough assembly, characterized in that: It has height direction and width direction, including: A cable trough, for allowing cables to pass through, comprising an upper surface and a first side wall and a second side wall arranged opposite to each other along the width direction; An arched protective frame has a first end and a second end arranged opposite to each other along the width direction, the first end is connected to the first side wall, and the second end is connected to the second side wall. The arched protective frame spans from the first side wall to the second side wall, covers the upper surface of the wire trough, and has a distance from the upper surface of the wire trough.

2. The wire duct assembly according to claim 1, characterized in that: The arched protective frame has an upper surface and a lower surface, a solid area is formed between the upper surface and the lower surface, and the solid area is divided into a first end area, a middle area and a second end area in sequence along the width direction, the lower surface of the first end area is in contact with the first side wall, the lower surface of the second end area is in contact with the second side wall, and the middle area has a spacing from the upper surface of the wire groove.

3. The wire duct assembly according to claim 2, characterized in that: The arched protection frame is a solid structure.

4. The wire duct assembly according to claim 2, characterized in that: The arched protective frame also includes two first pressure-bearing holes, which are respectively arranged at the upper end of the first end zone and the upper end of the second end zone. The two first pressure-bearing holes are symmetrical about the arch axis of the arched protective frame. The first pressure-bearing holes penetrate the arched protective frame along a first direction, and the first direction is perpendicular to the cross-section of the wire trough assembly.

5. The wire duct assembly according to claim 4, characterized in that: The cross-section of the upper surface of the arched protective frame forms a first side, and the cross-section of the lower surface of the arched protective frame forms a second side. The cross-sectional shape of the first pressure-bearing hole is surrounded by three sides connected in sequence, namely the third side, the fourth side and the fifth side. The third side has the same extension trend as the first side, and the fourth side has the same extension trend as the second side. One end of the third side is connected to one end of the fourth side in an arc, and the fifth side is used to connect the other end of the third side and the other end of the fourth side, wherein the fifth side is connected to the other end of the fourth side in an arc.

6. The wire duct assembly according to claim 5, characterized in that: The arched protective frame also includes two second pressure-bearing holes, one of which has a portion located in the first end area and another portion located in the middle area, and another of which has a portion located in the second end area and another portion located between the middle areas. The two second pressure-bearing holes are symmetrical about the arch axis, and the second pressure-bearing holes penetrate the arched protective frame along the first direction.

7. The wire duct assembly according to claim 6, characterized in that: The cross-sectional shape of the second pressure-bearing hole is surrounded by three edges connected in sequence, namely the sixth side, the seventh side and the eighth side, wherein the seventh side is parallel to the fifth side, the sixth side has the same extension trend as the first side, one end of the seventh side is connected to one end of the sixth side in a circular arc, and the eighth side is connected to the other end of the seventh side and the other end of the sixth side in a circular arc.

8. The wire duct assembly according to claim 7, characterized in that: The arch protection frame further includes two third pressure-bearing holes, which are respectively arranged between the second pressure-bearing hole and the arch axis. The two third pressure-bearing holes are symmetrical about the arch axis, and the third pressure-bearing holes penetrate the arch protection frame along the first direction.

9. The wire duct assembly according to claim 8, characterized in that: The cross-sectional shape of the third pressure-bearing hole is surrounded by four edges connected in sequence, namely the ninth side, the tenth side, the eleventh side, and the twelfth side. The tenth side and the twelfth side are arranged opposite to each other in the width direction, and the tenth side is parallel to the twelfth side. The ninth side and the eleventh side are arranged opposite to each other in the height direction. One end of the tenth side is connected to one end of the ninth side in a circular arc, the other end of the tenth side is connected to one end of the eleventh side in a circular arc, one end of the twelfth side is connected to the other end of the ninth side in a circular arc, and the other end of the twelfth side is connected to the other end of the eleventh side in a circular arc, wherein the ninth side has the same extension trend as the first side, and the eleventh side has the same extension trend as the second side.

10. The wire duct assembly according to claim 9, characterized in that: The arch protection frame further includes two fourth pressure-bearing holes, which are respectively arranged between the third pressure-bearing hole and the arch axis. The two fourth pressure-bearing holes are symmetrical about the arch axis, and the fourth pressure-bearing holes penetrate the arch protection frame along the first direction.

11. The wire duct assembly according to claim 10, characterized in that: The cross-sectional shape of the fourth pressure-bearing hole is surrounded by four edges connected in sequence, namely the thirteenth side, the fourteenth side, the fifteenth side and the sixteenth side. The thirteenth side and the fifteenth side are arranged opposite to each other in the height direction. The thirteenth side has the same extension trend as the first side, and the fifteenth side has the same extension trend as the second side. The fourteenth side is parallel to the twelfth side. One end of the fourteenth side is connected to one end of the thirteenth side in a circular arc, and the other end of the fourteenth side is connected to one end of the fifteenth side in a circular arc. One end of the sixteenth side is connected to the other end of the fifteenth side, and the other end of the sixteenth side is connected to the other end of the thirteenth side in a circular arc. The angle between the fifteenth side and the sixteenth side is an obtuse angle.

12. The wire duct assembly according to any one of claims 1, characterized in that: The maximum distance between the arched protection frame and the upper surface of the wire trough is 3.5-4.5 mm.

13. The wire duct assembly according to any one of claims 1 to 12, characterized in that: The bottom ends of the first end and the second end of the arched protection frame are lower than 1 / 2 of the height of the wire trough.

14. The wire duct assembly according to any one of claims 1 to 12, characterized in that: The first end and the second end of the arch protection frame are also provided with a first arch hook and a second arch hook, and the first arch hook and the second arch hook are arranged opposite to each other in the width direction, the first arch hook is connected to the first end, and the second arch hook is connected to the second end, and the arch protection frame also includes two support frames, and the two support frames respectively include a third arch hook and a fourth arch hook, and the third arch hook and the first arch hook are connected to the outer peripheral wall of the first arch hook through an interference fit, and the fourth arch hook and the second arch hook are connected to the outer peripheral wall of the second arch hook through an interference fit, and the arch protection frame is locked on the wire groove through the interference fit.

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