High-strength hot-dip galvanizing cable bridge

Abstract

The invention relates to the technical field of cable bridges, in particular to a high-strength hot-dip galvanizing cable bridge which comprises a bottom box and a box cover detachably installed at the top of the bottom box, a storage cavity is formed in the bottom box, the two ends of the bottom box penetrate through the storage cavity and are provided with two cable holes, and the high-strength hot-dip galvanizing cable bridge further comprises a locking and sealing assembly installed between the bottom box and the box cover. The locking and sealing assembly comprises two inserting cylinders vertically and fixedly installed at the bottom of the storage cavity, inserting cavities are formed in the two inserting cylinders, springs and square air bags distributed on the two sides of the springs are installed at the bottoms of the two inserting cavities, and telescopic barrier strips are elastically, telescopically and slidably installed on the two opposite inner cavity walls of the two inserting cavities. A gap between a cable and a hole wall is automatically filled after the annular air bag is pressed and expanded, compatibility with different cable outer diameters is achieved, the dustproof and waterproof effects are remarkable, the sealing action is synchronously triggered when the box cover is locked, extra operation is not needed, and the installation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cable bridges, and in particular to a high-strength hot-dip galvanized cable bridge. Background Art

[0002] Cable tray is a metal or non-metal structural system used to support, protect and manage cables. It is widely used in cable laying in construction, industry, power, communications and other fields.

[0003] Traditional cable trays have the following technical problems when laying cables: Poor sealing of cable holes: The reserved cable hole diameter is fixed and cannot adapt to cables of different outer diameters, resulting in a gap between the cable and the hole wall, which allows dust and moisture to easily penetrate and shorten the cable life.

[0004] Low efficiency of manual sealing: Existing technologies require additional use of sealants or rubber rings to fill gaps, which is cumbersome and difficult to adjust repeatedly.

[0005] Therefore, there is an urgent need for a high-strength cable tray that can automatically adapt to the outer diameter of the cable and simultaneously complete locking and sealing. Summary of the Invention

[0006] In response to the defects of the existing technology, the present invention provides a high-strength hot-dip galvanized cable tray. Through the linkage design of the locking and sealing components, the annular airbag is automatically triggered to expand when the box cover and the base box are pressed together, thereby realizing dynamic sealing of the cable hole.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a high-strength hot-dip galvanized cable tray, comprising a bottom box and a cover detachably mounted on the top of the bottom box, wherein a storage cavity is defined within the bottom box, two cable holes are defined through the storage cavity at both ends of the bottom box, and a locking and sealing assembly is further provided between the bottom box and the cover; The locking sealing assembly includes two plug-in tubes vertically fixedly installed at the bottom of the storage cavity, and a plug-in cavity is opened inside the two plug-in tubes. The bottoms of the two plug-in cavities are installed with springs and square air bags distributed on both sides of the springs. The two opposite inner cavity walls of the two plug-in cavities are elastically and slidably installed with telescopic block strips. The locking sealing assembly also includes a plug-in column vertically fixedly installed at the bottom of the box cover, and fixed block strips are fixedly installed on the opposite outer walls of the two plug-in columns. The locking sealing assembly also includes an annular air bag embedded in the four cable holes, and the four square air bags are connected to the corresponding annular air bags. When the two plug-in columns are respectively inserted into the corresponding plug-in cavities and squeeze the spring and the two square air bags, the air in the annular air bag is forced to squeeze into the corresponding square air bag, and the corresponding two fixed block strips are squeezed and conflicted with the telescopic block strip.

[0008] Furthermore, a plurality of rotating rollers are rotatably installed between two opposite inner walls of the storage cavity. The plurality of rotating rollers have the same specifications and are distributed in a linear array with equal spacing. Two horizontally arranged positioning bars are vertically fixedly installed on the lower bottom of the bottom box.

[0009] Furthermore, the top four corners of the bottom box are provided with sockets, and the lower four corners of the box cover are vertically fixed with plug shafts, and the four plug shafts are respectively and adaptively inserted into the corresponding sockets.

[0010] Furthermore, four supporting seats symmetrically distributed in pairs are provided below the bottom box, a supporting plate is fixedly installed between two symmetrical supporting seats, and a positioning groove is provided on the top of the two supporting plates to facilitate the insertion of the positioning strip.

[0011] Furthermore, two hanging seats are provided directly above the bottom box, and strip-shaped mounting holes are provided through the two hanging seats. Threaded shafts are rotatably mounted on the bottoms of the two hanging seats, and guide rods are vertically fixedly connected thereto.

[0012] Furthermore, the bottoms of the two threaded shafts are threadedly sleeved with threaded cylinders, and the bottoms of the two threaded cylinders are vertically fixedly mounted on corresponding support seats. The bottoms of the two guide rods are slidably sleeved with guide cylinders, and the bottoms of the two guide cylinders are vertically fixedly mounted on corresponding support seats.

[0013] Furthermore, the two threaded barrels are provided with interconnected movable cavities and threaded grooves, and circular blocks are fixedly installed at the bottoms of the two threaded shafts. The circular blocks are spirally lifted and installed in the corresponding movable cavities, and the two threaded shafts are respectively threadedly inserted in the corresponding threaded grooves.

[0014] Furthermore, the inner walls of the four cable holes are each provided with an annular groove, and an annular airbag is adaptively embedded and installed in the four annular grooves. The four annular airbags are connected to the corresponding square airbags by air pipes, and the four air pipes are hidden and distributed between the outer wall of the bottom box and the inner wall of the storage cavity.

[0015] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: Adaptive sealing: The annular airbag automatically fills the gap between the cable and the hole wall after being pressurized and expanded. It is compatible with different cable outer diameters and has significant dust and water proofing effects.

[0016] Linkage efficiency: The sealing action is triggered synchronously when the box cover is locked, without additional operation, which improves installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0018] Fig. 1 It is a schematic diagram of the overall structure of the present invention; Fig. 2 This is a schematic diagram of the bottom box installation structure of the present invention; Fig. 3 This is a schematic diagram of the installation structure of the base box and the supporting plate of the present invention; Fig. 4 This is a schematic diagram of the installation structure of the threaded barrel and the threaded shaft of the present invention; Fig. 5 This is a schematic structural diagram of the locking and sealing assembly of the present invention; Fig. 6 It is a schematic cross-sectional structural diagram of the plug-in sleeve of the present invention.

[0019] The numbers in the figure represent: 1. Bottom box; 11. Cable hole; 12. Rotating roller; 13. Positioning strip; 14. Box cover; 2. Support seat; 21. Support plate; 22. Positioning slot; 31. Threaded barrel; 32. Threaded shaft; 33. Lifting seat; 41. Connecting tube; 42. Square airbag; 43. Spring; 44. Telescopic stop bar; 45. Connecting column; 46. Fixed stop bar; 47. Annular airbag; 48. Trachea. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Example 1

[0023] Reference Figs. 1-6 , which is the first embodiment of the present invention, provides a high-strength hot-dip galvanized cable tray, which mainly includes the following structures: Bottom box 1 A storage cavity is provided inside for accommodating cables.

[0024] Two cable holes 11 (the hole diameter can be set to standard sizes such as 50mm and 80mm) are formed through the storage cavity at both ends.

[0025] Lid 14 It can be detachably mounted on the top of the bottom box 1 and sealed by locking the sealing assembly 4.

[0026] Locking seal assembly Plug-in tubes 41 : fixed vertically at the bottom of the storage cavity, there are two of them, and a plug-in cavity is defined inside.

[0027] Spring 43: installed at the bottom of the plug-in cavity, with an elastic coefficient of 5N / mm~10N / mm.

[0028] Square airbags 42: distributed on both sides of the spring 43, made of oil-resistant rubber, with an initial air pressure of 0.1 MPa.

[0029] Telescopic baffle 44: elastically and telescopically installed on the inner wall of the plug-in cavity, with a telescopic stroke of 10mm~15mm. The telescopic baffle 44 is semi-cylindrical and is elastically and telescopically installed on the inner wall of the plug-in cavity through an elastic rubber head.

[0030] The plug-in column 45 is fixed to the bottom of the box cover 14 and is matched with the plug-in tube 41 for insertion.

[0031] Fixed blocking bar 46 : It is set on the side wall of the plug-in column 45 , has a width of 20 mm, and is connected with the telescopic blocking bar 44 in a snap-fit ​​manner.

[0032] Annular airbag 47: embedded in the cable hole 11, connected to the square airbag 42 through the air tube 48, and can adapt to the deviation of the cable outer diameter of ±5mm after expansion.

[0033] Working process: When the box cover 14 is pressed down, the plug-in column 45 is inserted into the plug-in tube 41, compressing the spring 43 and squeezing the square airbag 42. Air enters the annular airbag 47 through the air tube 48 to expand it, thereby achieving a seal between the cable hole 11 and the cable.

[0034] Example 2

[0035] Reference Figs. 1-4 , which is the second embodiment of the present invention, differs from the first embodiment in that: Rotating roller 12 The quantity is 7-9 pieces, the diameter is 30mm, the spacing is 150mm~200mm, and the surface is galvanized for rust prevention.

[0036] Used to reduce cable drag friction and suitable for laying cables with large cross-sections.

[0037] Positioning bar 13 Welded to the bottom of the bottom box 1, the length is the same as the bottom box, the width is 40mm, and the thickness is 5mm.

[0038] Support seat 2 and support plate 21 The support seat 2 is made of Q235 steel and has an adjustable height range of 100mm to 300mm.

[0039] A positioning groove 22 is provided on the top of the supporting plate 21 , and the groove width is 42 mm (to fit with the positioning strip 13 ).

[0040] Lifting seat 33 and threaded shaft 32 The 33 bar-shaped mounting holes on the lifting mount are 100mm x 20mm in size and are compatible with M16 bolts.

[0041] The threaded shaft 32 has a diameter of 12mm, a pitch of 2mm, and is made of 304 stainless steel.

[0042] Installation example: Insert the positioning bar 13 into the positioning groove 22, rotate the threaded shaft 32 to adjust the height, and the guide rod ensures that the verticality error is ≤1°.

[0043] The remaining structures are the same as those of Example 1.

[0044] Example 3

[0045] Reference Figs. 1-6 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: Threaded cylinder 31 and guide cylinder The depth of the internal thread groove of the threaded barrel 31 is 50 mm, and the height of the active cavity is 30 mm.

[0046] The inner diameter of the guide cylinder is 20mm, and the gap with the guide rod is 0.5mm.

[0047] Annular airbag 47 enhanced design The annular groove has a depth of 8 mm, the wall thickness of the annular airbag 47 is 2 mm, and the pressure resistance is 0.3 MPa.

[0048] The inner diameter of the air pipe 48 is 6 mm and is hidden in the wall thickness of the bottom box 1 (the wall thickness is ≥ 10 mm).

[0049] Adjustment process: When the threaded shaft 32 is rotated, the circular stopper is limited in the movable cavity, and the adjustment range is 0 to 200 mm. The sealing system can maintain airtightness at any height.

[0050] Parameter Summary Table Note: The above parameters can be adjusted according to actual needs. For example, the cable hole 11 can be added with multiple specifications, and the airbag pressure can match different sealing level requirements. The remaining structures are the same as those of Example 2.

[0051] Working process of high strength hot dip galvanized cable tray 1. Cable installation and bridge assembly First, the cable is passed through the cable holes 11 at both ends of the bottom box 1 into the storage cavity and laid flat on the rotating rollers 12. The equidistant distribution design of the rotating rollers 12 can reduce the friction when the cable is dragged, making it easy to pull and adjust.

[0052] Next, align the four insertion shafts at the bottom of the box cover 14 with the four insertion holes at the top of the bottom box 1, and press the box cover 14 vertically downward to make it fit tightly with the bottom box 1.

[0053] 2. Linkage seal of locking seal assembly When the box cover 14 is pressed down, the plug post 45 is inserted into the plug cavity of the plug tube 41. The bottom of the plug post 45 first contacts the spring 43 and the square air bags 42 on both sides, and continues to press down, compressing the spring 43 and squeezing the square air bags 42 at the same time.

[0054] When the square airbag 42 is pressurized, the air inside is forced into the corresponding annular airbag 47 through the air tube 48, causing the annular airbag 47 to expand. The expanded annular airbag 47 tightly wraps around the outer wall of the cable, automatically filling the gap between the cable and the inner wall of the cable hole 11, achieving a dynamic seal and effectively preventing the intrusion of dust and moisture.

[0055] At the same time, the fixed stop bar 46 on the side wall of the plug column 45 and the telescopic stop bar 44 on the inner wall of the plug tube 41 squeeze and contact each other. The telescopic stop bar 44 expands outward under the action of elasticity and forms a snap connection with the fixed stop bar 46, ensuring that the box cover 14 and the bottom box 1 are firmly locked to prevent accidental opening.

[0056] 3. Height adjustment and fixing of bridge If the bridge height needs to be adjusted, the threaded shaft 32 can be rotated. The threaded shaft 32 is spirally lifted and lowered in the threaded barrel 31 through the threaded groove, driving the lifting seat 33 to move up and down.

[0057] The cooperation of the guide rod and the guide cylinder can prevent the threaded shaft 32 from deflecting when rotating, ensuring smooth lifting. When the circular stopper at the bottom of the threaded shaft 32 reaches the limit point of the movable cavity, the height adjustment is completed.

[0058] The positioning strip 13 at the bottom of the bottom box 1 is inserted into the positioning groove 22 of the supporting plate 21 to further stabilize the bridge position and prevent horizontal displacement.

[0059] 4. Cable maintenance and removal When the cable needs to be repaired or replaced, the cover 14 is lifted upwards to pull the plug post 45 out of the plug tube 41. At this time, the spring 43 rebounds, the square airbag 42 returns to its original shape, the air in the annular airbag 47 flows back, the airbag shrinks, and the cable seal is released, making it easier to pull out or adjust the cable.

[0060] Summarize The present invention utilizes the coupling of the plug post 45 and the plug barrel 41 to automatically trigger the locking seal assembly 4 when the cover 14 is closed, causing the annular airbag 47 to expand and seal the cable hole 11, achieving dust and water resistance. This entire process requires no additional operation, is efficient and convenient, and is suitable for cables of varying outer diameters, significantly improving the cable tray's sealing and installation efficiency.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high-strength hot-dip galvanized cable tray, comprising a bottom box (1) and a box cover (14) detachably mounted on the top of the bottom box (1), wherein a storage cavity is provided in the bottom box (1), and two cable holes (11) are provided at both ends of the bottom box (1) through the storage cavity, characterized in that: Also included is a locking seal assembly (4) mounted between the bottom box (1) and the box cover (14); The locking and sealing assembly (4) includes two plug-in tubes (41) vertically fixedly mounted on the bottom of the storage chamber, and the two plug-in tubes (41) are provided with a plug-in cavity inside, and the bottoms of the two plug-in cavities are provided with springs (43) and square air bags (42) distributed on both sides of the springs (43), and the two opposite inner cavity walls of the two plug-in cavities are elastically and slidably provided with telescopic blocking strips (44), and the locking and sealing assembly also includes a plug-in column (45) vertically fixedly mounted on the bottom of the box cover (14), and the two opposite outer walls of the two plug-in columns (45) are fixed. A fixed baffle (46) is installed, and the locking sealing assembly also includes an annular airbag (47) embedded in the four cable holes (11). The four square airbags (42) are connected to the corresponding annular airbags (47). When the two plug-in columns (45) are respectively inserted into the corresponding plug-in cavities and squeeze the spring (43) and the two square airbags (42), the air in the annular airbag (47) is forced to squeeze into the corresponding square airbag (42), and the corresponding two fixed baffles (46) are squeezed and conflicted with the telescopic baffle (44).

2. A high-strength hot-dip galvanized cable tray according to claim 1, characterized in that: A plurality of rotating rollers (12) are rotatably mounted between two opposite inner walls of the storage cavity. The plurality of rotating rollers (12) have the same specifications and are distributed in a linear array at equal intervals. Two horizontally arranged positioning bars (13) are vertically fixedly mounted on the lower bottom of the bottom box (1).

3. The high-strength hot-dip galvanized cable tray according to claim 1, characterized in that: The four corners of the top of the bottom box (1) are provided with insertion holes, and the four corners of the bottom of the box cover (14) are vertically fixed with insertion shafts, and the four insertion shafts are respectively inserted into the corresponding insertion holes in a matching manner.

4. A high-strength hot-dip galvanized cable tray according to claim 2, characterized in that: Four supporting seats (2) are symmetrically distributed in pairs below the bottom box (1), and a supporting plate (21) is fixedly installed between two symmetrical supporting seats (2). The tops of the two supporting plates (21) are provided with positioning grooves (22) for facilitating the insertion of the positioning strips (13).

5. The high-strength hot-dip galvanized cable tray according to claim 4, characterized in that: Two hanging seats (33) are provided directly above the bottom box (1), and strip-shaped mounting holes are provided through the two hanging seats (33). The bottoms of the two hanging seats (33) are rotatably mounted with threaded shafts (32) and are vertically fixedly connected with guide rods.

6. The high-strength hot-dip galvanized cable tray according to claim 5, characterized in that: The bottoms of the two threaded shafts (32) are threadedly sleeved with threaded cylinders (31), and the bottoms of the two threaded cylinders (31) are vertically fixedly mounted on the corresponding support seats (2). The bottoms of the two guide rods are slidably sleeved with guide cylinders, and the bottoms of the two guide cylinders are vertically fixedly mounted on the corresponding support seats (2).

7. The high-strength hot-dip galvanized cable tray according to claim 6, characterized in that: A connected active cavity and a threaded groove are provided in each of the two threaded barrels (31), and a circular stopper is fixedly installed at the bottom of each of the two threaded shafts (32). The circular stopper is spirally lifted and installed in the corresponding active cavity, and the two threaded shafts (32) are respectively threadedly inserted in the corresponding threaded groove.

8. The high-strength hot-dip galvanized cable tray according to claim 1, characterized in that: The inner hole walls of the four cable holes (11) are each provided with an annular groove, and an annular airbag (47) is adaptively embedded and installed in the four annular grooves. An air pipe (48) is connected between the four annular airbags (47) and the corresponding square airbags (42), and the four air pipes (48) are hidden and distributed between the outer wall of the bottom box (1) and the inner wall of the storage cavity.

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