An adjustable-spacing cable tray

Abstract

The present invention relates to the technical field of cable trays, and discloses an adjustable-spacing cable tray, which includes a fixed plate. A sliding plate is slidably connected to the inner wall of the fixed plate, and a sliding cover plate is snap-fitted on the top of the fixed plate. After the spring piece and the sliding support plate form an integral body, when the fixed plate and the sliding plate are pressed to generate a downward bending deformation, the pressure received by the limiting track one will be transmitted to the position of the rotating support plate through the sliding support plate, and the rotating support plate will then transmit the pressure to the position of the fixed rod one and the sliding plate. At this time, it can be regarded that the sliding support plate and the rotating support plate are one side line, and the sliding plate and the limiting track one are the other two side lines, which makes the above devices form a triangle. Through the application of the above components, the compression range of the fixed plate and the sliding plate is increased, so that after the weight of the cable is applied inside the cable tray, the load-bearing capacity of the center position of the adjustable cable tray is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable trays, and specifically relates to a cable tray with adjustable spacing. Background Art

[0002] Cable trays are divided into trough type, tray type, ladder type, grid type and other structures, and are composed of brackets, cantilever arms and installation accessories, etc.; the cable trays in buildings can be erected independently or attached to various building and pipe gallery brackets, reflecting the characteristics of simple structure, beautiful shape, flexible configuration and convenient maintenance; the cable trays installed outdoors on buildings have the characteristics of anti-corrosion, moisture resistance, high impact strength, etc., and the spacing between the support frames fixed on the top of the cable tray is 1.5 - 2 meters. Within this distance, the cable will exert a downward pressure on the cable tray.

[0003] Among them, the cable tray with adjustable spacing mostly uses the internal slide rail method for sliding, that is, the staff can adjust the width of the cable tray by pulling the left and right ends of the cable tray. However, during the adjustment process, as the end position of the sliding end slowly approaches the outlet position of the fixed end, and since the cable tray is mostly formed by stamping thin steel plates and is mostly flat, as the end position and the outlet position approach each other, the internal contact surface between the two decreases, which will greatly weaken the load-bearing capacity at the center position of the cable tray, resulting in the center position of the tray protruding downward after placing the cable. In view of the above problems, the following solutions are proposed. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a cable tray with adjustable spacing, including a fixing plate, a sliding plate is slidably connected to the inner wall of the fixing plate, a sliding cover plate is snap-fitted on the top of the fixing plate, and further includes:

[0005] A fixing mechanism, which is fixedly arranged on the inner wall of the fixing plate and is used to enhance the load-bearing capacity at the connection position between the fixing plate and the sliding plate;

[0006] A linkage mechanism, which is arranged inside the fixing mechanism and is used to extend the fixing mechanism and limit the reset of the fixing mechanism;

[0007] A limiting mechanism, which is fixedly arranged inside the linkage mechanism;

[0008] Among them, before use, first separate the fixing plate and the sliding plate. As the distance between the two increases, the fixing mechanism placed inside the sliding plate will deform, and the linkage mechanism will operate by utilizing the deformation of the fixing mechanism.

[0009] Preferably, the fixing mechanism includes:

[0010] A positioning component, which is opened on the inner wall of the sliding plate through a mounting part;

[0011] The mounting member includes a mounting slot formed on the top of the sliding plate;

[0012] An auxiliary component, the auxiliary component is fixedly connected to the inner wall of the installation groove through a limiting member;

[0013] The limiting member includes a fixing rod 1 fixedly connected to the inner wall of the installation groove, and a spring sheet is slidably provided on the bottom of the fixing rod 1;

[0014] Among them, the spring leaf is in a bent state when not squeezed by external pressure. When the spring leaf is in the gap between the sliding plate and the fixed plate, the spring leaf is compressed and in a straight state, and accumulates mechanical power.

[0015] Preferably, the linkage mechanism includes:

[0016] A pushing mechanism, the pushing mechanism being rotatably arranged on the side wall of the fixing rod;

[0017] A positioning mechanism, the positioning mechanism is fixedly arranged on the outer wall of the auxiliary component;

[0018] Among them, after the external pressure of the spring sheet disappears, the spring sheet will be forced to move away from the fixing rod and tilt upward at one end, and the tilting force will force the pushing mechanism to move.

[0019] Preferably, the limiting mechanism includes:

[0020] A buckle assembly is provided on a side wall of the fixing mechanism;

[0021] A restriction component, the restriction component being fixedly connected to an outer wall of the restriction track 1;

[0022] Among them, after the spring piece bounces upward, as the sliding plate continues to move backward, the spring piece will be restricted by the positioning component and slowly reset downward. At this time, the auxiliary component will contact the outer wall of the bent hanging piece and form a snap-fit state.

[0023] Preferably, the positioning assembly includes a limiting track 1 fixedly connected to the top of the fixing plate, and a limiting track 2 fixedly connected to the side wall of the limiting track 1;

[0024] Among them, after the spring piece is tilted upward, it will extend, and the extended part will enter the inner wall of the limiting track 1. At this time, the spring piece, the fixing plate and the limiting track 1 will form a triangle state.

[0025] Preferably, the auxiliary component includes a sliding support plate slidably connected to the inner wall of the spring sheet, and one end of the sliding support plate away from the fixed rod is fixedly connected to a thin spring scraper;

[0026] After the spring piece tilts upward, the upward thrust will force the sliding support plate to move outward along the inner wall of the spring piece through the pushing mechanism.

[0027] Preferably, the pushing mechanism includes a rotating support plate rotatably connected to the inner wall of the fixed rod, an end of the rotating support plate away from the fixed rod is rotatably connected to the fixing frame, and a through hole is opened on the side wall of the spring sheet;

[0028] After the spring sheet tilts upward, the rotating support plate has a fixed length, which causes the rotating support plate to push the fixing frame to move outward along the inner wall of the sliding support plate.

[0029] Preferably, the positioning mechanism includes a second fixing rod fixedly connected to the side wall of the sliding support plate, a rotating short rod is rotatably connected to the side wall of the second fixing rod, a rotating long rod is fixedly connected to the side wall of the rotating short rod, and a slot is provided on the side wall of the spring sheet;

[0030] Among them, since the length of the rotating long rod is longer than the rotating short rod, when the sliding support plate extends outward, the rotating short rod moves outward, driving the rotating long rod to rotate upward synchronously. When external pressure is applied to cause the sliding support plate to reset, the rotating long rod and the rotating short rod are in a vertical state, so that when the sliding support plate moves backward, the rotating long rod and the rotating short rod will limit the movement of the sliding support plate.

[0031] Preferably, the buckle assembly includes a slot provided on the side wall of the sliding support plate, and a curved hanging piece is fixedly connected to the side wall of the spring piece;

[0032] When the distance between the fixed plate and the sliding plate continues to extend, the auxiliary component in the extended state will be affected by the limiting track 2 and reset downward.

[0033] Preferably, the limiting assembly includes an obstruction rod fixedly connected to the inner wall of the limiting track 1, and a reinforcing rib fixedly connected to the outer wall of the limiting track 2;

[0034] The outer wall of the obstruction rod and the outer wall of the spring thin scraper are in a contact state.

[0035] Preferably, the outer wall of the reinforcing rib away from the limiting track 1 is fixedly connected to the outer wall of the fixing plate, and the side wall of the fixing frame is fixedly connected to the side wall of the sliding support plate.

[0036] The present invention has the following beneficial effects:

[0037] (1) In the present invention, after the spring sheet and the sliding support plate form an integral body, when the fixed plate and the sliding plate are compressed and deformed downward, the pressure on the limiting track 1 will be transmitted to the position of the rotating support plate through the sliding support plate, and the rotating support plate will then transmit the pressure to the position of the fixed rod 1 and the sliding plate. At this time, the sliding support plate and the rotating support plate can be regarded as one side line, and the sliding plate and the limiting track 1 can be regarded as the other two side lines, which makes the above devices form a triangle. Through the application of the above components, the pressure range of the fixed plate and the sliding plate is increased, so that after the weight of the cable is applied to the inside of the cable tray, the load-bearing capacity of the center position of the adjustable cable tray is greatly improved;

[0038] (2) The present invention utilizes the characteristic of the distance between the fixed plate and the sliding plate being expanded, and a spring thin scraper and a bent hanging piece are arranged inside the device. As the distance between the fixed plate and the sliding plate continues to expand, the sliding support plate that has completed the extension is restricted by the inner wall of the second restricted track, which will force the raised end of the spring piece to slowly rotate downward, so that the spring thin scraper approaches the direction of the bent hanging piece. Moreover, since the material of the bent hanging piece and the spring thin scraper are both metal elastic materials, when the spring thin scraper moves down to the lowest point, the two will form a snap-fit state, forming a state as shown in FIG. Figure 9 In the middle G state, multiple spring scrapers and curved hanging pieces are in a snap-on state. If the pressure of the cable increases at this time, the sliding support plate and the spring piece inside the limiting track 1 will rotate at a small angle, and the rotation pressure will act on the subsequent spring pieces through the spring scrapers and the curved hanging piece, so that the pressure on the spring piece inside the limiting track 1 can be distributed to the rest of the positions of the other sliding plates, thereby improving the pressure resistance of the bridge.

[0039] (3) In the present invention, after the sliding support plate is mortgaged to the position of the blocking rod, if the fixed plate and the sliding plate are compressed and the angle between them is reduced, the pressure will be applied to the spring scraper and the sliding support plate, and the external pressure will force the sliding support plate to slide inward along the inner wall of the spring plate. The pressure generated by the fixed plate will cause the spring plate to tilt upward. The pressure on the sliding support plate will cause it to shrink, and the spring plate will continue to push outward due to the rotation angle of the fixed plate, causing the spring plate to bear two opposite pressures. Through the application of the above components, the degree of bending of the center position of the fixed plate and the sliding plate can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 Schematic cross-sectional view of the overall structure of the present invention;

[0042] Figure 2 Schematic view of the overall structure of the present invention;

[0043] Figure 3 Schematic cross-sectional view of the positioning component of the present invention;

[0044] Figure 4 Schematic view of the fixing mechanism of the present invention;

[0045] Figure 5 Schematic cross-sectional view of the auxiliary component of the present invention;

[0046] Figure 6 Schematic cross-sectional view of the pushing mechanism of the present invention;

[0047] Figure 7 For the present invention Figure 6 Schematic view at position A in;

[0048] Figure 8 Schematic cross-sectional view of the buckle component of the present invention;

[0049] Figure 9 Schematic cross-sectional view of the limiting component of the present invention.

[0050] In the drawings, the list of components represented by each reference numeral is as follows:

[0051] In the figure: 1, fixing mechanism; 11, positioning component; 12, auxiliary component; 13, fixing plate; 14, sliding plate; 15, sliding cover plate; 111, installation groove; 112, limiting track one; 113, limiting track two; 121, fixing rod one; 122, spring piece; 123, sliding support plate; 124, spring thin scraping piece; 2, linkage mechanism; 21, pushing mechanism; 22, positioning mechanism; 211, rotating support plate; 212, fixing frame; 213, through hole; 221, fixing rod two; 222, rotating short rod; 223, rotating long rod; 224, card slot; 3, limiting mechanism; 31, buckle component; 32, limiting component; 311, empty slot; 312, bent hanging piece; 321, blocking rod; 322, reinforcing rib. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0053] Example 1, please refer to Figures 1 - 6, the present invention is an adjustable-spacing cable tray, which includes a fixed plate 13. A sliding plate 14 is slidably connected to the inner wall of the fixed plate 13. A sliding cover plate 15 is snap-fitted on the top of the fixed plate 13. It further includes:

[0054] A fixing mechanism 1, which is fixedly arranged on the inner wall of the fixed plate 13 and is used to strengthen the load-bearing capacity of the connection position between the fixed plate 13 and the sliding plate 14;

[0055] A linkage mechanism 2, which is arranged inside the fixing mechanism 1 and is used to extend the fixing mechanism 1 and limit the reset of the fixing mechanism 1;

[0056] A limiting mechanism 3, which is fixedly arranged inside the linkage mechanism 2;

[0057] Among them, before use, first separate the fixed plate 13 from the sliding plate 14. As the distance between the two increases, the fixing mechanism 1 placed inside the sliding plate 14 will deform, and the linkage mechanism 2 utilizes the deformation of the fixing mechanism 1 to generate operation.

[0058] The fixing mechanism 1 includes:

[0059] A positioning component 11, which is opened on the inner wall of the sliding plate 14 through a mounting member;

[0060] The mounting member includes a mounting groove 111 opened on the top of the sliding plate 14;

[0061] An auxiliary component 12, which is fixedly connected to the inner wall of the mounting groove 111 through a limiting member;

[0062] The limiting member includes a first fixing rod 121 fixedly connected to the inner wall of the mounting groove 111. A spring piece 122 is slidably arranged at the bottom of the first fixing rod 121;

[0063] Among them, when the spring piece 122 is not extruded by external pressure, it is in a bent state. When the spring piece 122 is in the gap position between the sliding plate 14 and the fixed plate 13, the spring piece 122 is compressed and in a straight state, and mechanical power is accumulated;

[0064] Before use, the staff first place the device flat on the ground, and then pull the fixed plate 13 and the sliding plate 14 with the left and right hands, so that the distance between the fixed plate 13 and the sliding plate 14 increases, presenting a state as shown in Figure 2 . During this process, the sliding plate 14 will slide along the inner wall of the fixed plate 13, and the mounting groove 111 will also move synchronously.

[0065] The linkage mechanism 2 includes:

[0066] A pushing mechanism 21, which is rotatably arranged on the side wall of the first fixing rod 121;

[0067] A positioning mechanism 22, the positioning mechanism 22 is fixedly disposed on the outer wall of the auxiliary component 12;

[0068] When the external pressure on the spring sheet 122 disappears, the spring sheet 122 will be forced to tilt upward away from the fixing rod 121, and the tilting force will force the pushing mechanism 21 to move.

[0069] When the spring piece 122 is completely free from the restraint of the inner wall of the fixing plate 13, due to the stress of the spring piece 122 itself, the end of the limiting track 112 away from the fixing rod 121 will be tilted upwards, showing a Figure 4 status.

[0070] The limiting mechanism 3 includes:

[0071] A buckle assembly 31 is provided on a side wall of the fixing mechanism 1;

[0072] The limiting component 32 is fixedly connected to the outer wall of the limiting track 112;

[0073] Among them, after the spring piece 122 bounces upward, as the sliding plate 14 continues to move backward, the spring piece 122 will be restricted by the positioning component 11 and slowly reset downward. At this time, the auxiliary component 12 will contact the outer wall of the curved hanging piece 312 and form a snap-fit state.

[0074] For example 2, please refer to Figures 3 - 9 The present invention is a cable tray with adjustable spacing. Based on Example 1, the positioning assembly 11 includes a limiting track 112 fixedly connected to the top of the fixing plate 13, and a limiting track 2 113 is fixedly connected to the side wall of the limiting track 112;

[0075] The bottom of the fixing rod 121 and the top of the spring piece 122 are in a sliding state. When the fixing plate 13 and the sliding plate 14 are separated, the sliding support plate 123 and the spring piece 122 cannot be reset due to the influence of the positioning mechanism 22. When the sliding support plate 123 is restricted by the limiting track 2 113, causing the sliding support plate 123 to reset downward, the flat position of the spring piece 122 will slide along the bottom of the fixing rod 121, so that after the sliding support plate 123 and the spring piece 122 are fixed, the spring piece 122 can still rotate downward. Finally, the folded position of the spring piece 122 contacts the side wall of the fixing rod 121, limiting the sliding of the spring piece 122.

[0076] The auxiliary component 12 includes a sliding support plate 123 slidably connected to the inner wall of the spring sheet 122, and a spring thin scraper 124 is fixedly connected to one end of the sliding support plate 123 away from the fixing rod 121;

[0077] Among them, after the spring piece 122 and the sliding support plate 123 form an integral body, when the fixed plate 13 and the sliding plate 14 are pressed to generate a downward bending deformation, the pressure received by the limiting track 112 will be transmitted to the position of the rotating support plate 211 through the sliding support plate 123, and then the rotating support plate 211 will transmit the pressure to the position of the first fixed rod 121 and the sliding plate 14. At this time, it can be regarded that the sliding support plate 123 and the rotating support plate 211 are one side line, and the sliding plate 14 and the limiting track 112 are the other two side lines. This makes the above equipment form a triangle. Through the application of the above components, the pressure-bearing range of the fixed plate 13 and the sliding plate 14 is increased, so that after the weight of the cable is applied inside the cable bridge, the load-bearing capacity of the center position of the adjustable cable bridge is greatly improved.

[0078] The pushing mechanism 21 includes a rotating support plate 211 rotatably connected to the inner wall of the first fixed rod 121. One end of the rotating support plate 211 away from the first fixed rod 121 is rotatably connected to a fixed frame 212. A through hole 213 is formed in the side wall of the spring piece 122.

[0079] Among them, after the spring piece 122 tilts upward, due to the fixed length of the rotating support plate 211, the rotating support plate 211 will push the fixed frame 212 to move outward along the inner wall of the sliding support plate 123.

[0080] The positioning mechanism 22 includes a second fixed rod 221 fixedly connected to the side wall of the sliding support plate 123. A rotating short rod 222 is rotatably connected to the side wall of the second fixed rod 221. A rotating long rod 223 is fixedly connected to the side wall of the rotating short rod 222. A clamping groove 224 is formed in the side wall of the spring piece 122.

[0081] When the rotating short rod 222 moves upward and to the left, the rotating short rod 222 will drive the rotating long rod 223 to rotate counterclockwise. When the rotating short rod 222 crosses a single clamping groove 224, the side wall of the rotating long rod 223 will contact the side wall of the second fixed rod 221. Subsequently, the rotating short rod 222 enters the inner wall of the new clamping groove 224. At this time, the thrust received by the rotating short rod 222 disappears, causing the rotating long rod 223 to drive the rotating short rod 222 to rotate clockwise and reset again. When the external cable pressure is too high, the sliding positions of the fixed plate 13 and the sliding plate 14 will be bent at this time, and the bending force will be applied to the sliding support plate 123, causing the sliding support plate 123 to move backward. At this time, since the angle between the rotating short rod 222 and the rotating long rod 223 is 90 degrees, after the sliding support plate 123 moves backward a certain distance, because the outer wall of the rotating long rod 223 is closely attached to the outer wall of the spring piece, the rotating short rod 222 cannot rotate, restricting the sliding of the second fixed rod 221 and the sliding support plate 123, so that the sliding support plate 123 cannot be reset.

[0082] The buckle assembly 31 includes an empty groove 311 formed in the side wall of the sliding support plate 123, and a bent hanging piece 312 is fixedly connected to the side wall of the spring piece 122;

[0083] When the distance between the fixed plate 13 and the sliding plate 14 continues to extend, the auxiliary assembly 12 in the extended state will be affected by the limiting track two 113 and reset downward;

[0084] Taking advantage of the characteristic that the distance between the fixed plate 13 and the sliding plate 14 expands, a spring thin scraper 124 and a bent hanging piece 312 are arranged inside the device. As the distance between the fixed plate 13 and the sliding plate 14 continues to increase, the sliding support plate 123 that has completed the extension is restricted by the inner wall of the limiting track two 113, which will force the upturned end of the spring piece 122 to slowly rotate downward, making the spring thin scraper 124 approach the bent hanging piece 312. And since the materials of both the bent hanging piece 312 and the spring thin scraper 124 are metal elastic materials, when the spring thin scraper 124 moves down to the lowest point, the two will form a buckling state, forming the state as shown in Figure 9 G in the figure. Multiple spring thin scrapers 124 and bent hanging pieces 312 are all in a buckling state. If the pressure of the cable increases at this time, the sliding support plate 123 and the spring piece 122 inside the limiting track one 112 will generate a small-angle rotation, and the rotational pressure will act on the subsequent spring piece 122 through the spring thin scraper 124 and the bent hanging piece 312, so that the pressure received by the spring piece 122 inside the limiting track one 112 can be partially shared to the remaining positions of the other sliding plates 14, improving the anti-pressure ability of the cable tray.

[0085] The limiting component 32 includes an obstructive rod 321 fixedly connected to the inner wall of the limiting track one 112, and a reinforcing rib 322 is fixedly connected to the outer wall of the limiting track two 113;

[0086] Among them, the outer wall of the obstructive rod 321 is in a fitting state with the outer wall of the spring thin scraper 124.

[0087] The outer wall of the reinforcing rib 322 away from the limiting track one 112 is fixedly connected to the outer wall of the fixed plate 13, and the side wall of the fixed frame 212 is fixedly connected to the side wall of the sliding support plate 123;

[0088] After the sliding support plate 123 is mortgaged at the position of the blocking rod 321, if the angle between the fixed plate 13 and the sliding plate 14 is reduced due to the pressure, at this time, the pressure will be applied to the position of the spring thin scraper 124 and the sliding support plate 123. At this time, the external pressure will force the sliding support plate 123 to slide inward along the inner wall of the spring piece 122. The pressure generated by the fixed plate 13 will cause the spring piece 122 to tilt upward. The pressure received by the sliding support plate 123 will cause contraction, and affected by the rotation angle of the fixed plate 13, the spring piece 122 will continue to generate an outward push, resulting in the spring piece 122 being subjected to two opposite pressures. Through the application of the above components, the amplitude of the downward bending of the central position of the fixed plate 13 and the sliding plate 14 is effectively reduced.

[0089] A specific application of this embodiment is as follows: Before use, the staff first place the device flat on the ground, and then pull the fixed plate 13 and the sliding plate 14 with the left and right hands, so that the distance between the fixed plate 13 and the sliding plate 14 is enlarged, presenting a state as Figure 2 . During this process, the sliding plate 14 will slide along the inner wall of the fixed plate 13, and the installation groove 111 will also move synchronously. When the spring piece 122 is completely released from the restraint of the inner wall of the fixed plate 13, due to the influence of its own stress, the end of the limiting track 112 away from the fixed rod 121 will tilt upward, presenting a state as Figure 4 . Among them, the length of the rotating support plate 211 is in a fixed state. After the spring piece 122 tilts upward, the rotating support plate 211 will push the sliding support plate 123 to extend outward along the inner wall of the spring piece 122, and finally present a state as Figure 6 . The extended sliding support plate 123 will drive the spring thin scraper 124 to be mortgaged at the bottom of the blocking rod 321;

[0090] During the above process, the outward movement of the sliding support plate 123 will drive the fixed rod 221 to move synchronously, as Figure 7As shown, when the rotating short rod 222 moves upward and to the left, the rotating short rod 222 will drive the rotating long rod 223 to rotate counterclockwise. When the rotating short rod 222 crosses a single card slot 224, the side wall of the rotating long rod 223 will contact the side wall of the second fixed rod 221. Subsequently, the rotating short rod 222 enters the inner wall of the new card slot 224. At this time, the thrust force received by the rotating short rod 222 disappears, causing the rotating long rod 223 to drive the rotating short rod 222 to rotate clockwise and reset again. When the external cable pressure is too high, the sliding positions of the fixed plate 13 and the sliding plate 14 will be bent at this time, and the bending force will be applied to the sliding support plate 123, causing the sliding support plate 123 to move backward. At this time, since the angle between the rotating short rod 222 and the rotating long rod 223 is 90 degrees, after the sliding support plate 123 retreats a certain distance, because the outer wall of the rotating long rod 223 is closely attached to the outer wall of the spring piece 122, the rotating short rod 222 cannot rotate, restricting the sliding of the second fixed rod 221 and the sliding support plate 123, making the sliding support plate 123 unable to reset.

[0091] Through the application of the above components, after the spring piece 122 and the sliding support plate 123 form an integral body, when the fixed plate 13 and the sliding plate 14 are pressed and deformed downward, the pressure received by the limiting track 112 will be transmitted to the position of the rotating support plate 211 through the sliding support plate 123, and the rotating support plate 211 will then transmit the pressure to the position of the first fixed rod 121 and the sliding plate 14. At this time, it can be regarded that the sliding support plate 123 and the rotating support plate 211 are on one side line, and the sliding plate 14 and the limiting track 112 are on the other two side lines, which makes the above equipment form a triangle. Through the application of the above components, the pressure-bearing range of the fixed plate 13 and the sliding plate 14 is increased, so that after the weight of the cable is applied inside the cable tray, the load-bearing capacity of the adjustable cable tray center position is greatly improved.

[0092] In addition, taking advantage of the characteristic that the distance between the fixed plate 13 and the sliding plate 14 is enlarged, a spring thin scraper 124 and a bending hanging piece 312 are arranged inside the equipment. As the distance between the fixed plate 13 and the sliding plate 14 continues to expand, the extended sliding support plate 123 is restricted by the inner wall of the limiting track 113, forcing the upturned end of the spring piece 122 to slowly rotate downward, making the spring thin scraper 124 approach the bending hanging piece 312. And because the materials of both the bending hanging piece 312 and the spring thin scraper 124 are metal elastic materials, when the spring thin scraper 124 moves down to the lowest point, the two will form a buckling state, forming as Figure 9When the state of G in the middle is such that multiple spring thin scraping pieces 124 and the bent hanging piece 312 are both in the buckling state, if the pressure of the cable increases at this time, the sliding support plate 123 and the spring piece 122 inside the limiting track one 112 will produce a small-angle rotation. The rotation pressure will act on the subsequent spring piece 122 through the spring thin scraping piece 124 and the bent hanging piece 312, so that part of the pressure on the spring piece 122 inside the limiting track one 112 can be shared to other positions of the other sliding plates 14, improving the anti-pressure ability of the cable tray.

[0093] Taking advantage of the characteristic that the bottom of the first fixing rod 121 and the top of the spring piece 122 are in a sliding state, when the fixing plate 13 and the sliding plate 14 are separated, since the sliding support plate 123 and the spring piece 122 cannot be reset due to the influence of the positioning mechanism 22, when the sliding support plate 123 is restricted by the limiting track two 113 and causes the sliding support plate 123 to reset downward, at this time, the flat position of the spring piece 122 will slide along the bottom of the first fixing rod 121, so that after the sliding support plate 123 and the spring piece 122 are fixed, the spring piece 122 can still rotate downward. Finally, the folded position of the spring piece 122 contacts the side wall of the first fixing rod 121, restricting the sliding of the spring piece 122.

[0094] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An adjustable-spacing cable tray, comprising a fixed plate (13), wherein a sliding plate (14) is slidably connected to the inner wall of the fixed plate (13), and a sliding cover plate (15) is snap-fitted on the top of the fixed plate (13), characterized in that, Also includes: A fixing mechanism (1), wherein the fixing mechanism (1) is fixedly arranged on the inner wall of the fixing plate (13) and is used to enhance the load-bearing capacity of the connection position between the fixing plate (13) and the sliding plate (14); A linkage mechanism (2), the linkage mechanism (2) being arranged on the inner wall of the fixing mechanism (1) and being used to extend the fixing mechanism (1) and restrict the resetting of the fixing mechanism (1); A limiting mechanism (3), wherein the limiting mechanism (3) is fixedly arranged on the inner wall of the linkage mechanism (2); Before use, the fixed plate (13) and the sliding plate (14) are separated. As the distance between the fixed plate (13) and the sliding plate (14) increases, the fixed mechanism (1) placed inside the sliding plate (14) will be deformed, and the linkage mechanism (2) will operate by utilizing the deformation of the fixed mechanism (1). The fixing mechanism (1) comprises: A positioning assembly (11), wherein the positioning assembly (11) is opened on the inner wall of the sliding plate (14) through a mounting member; The mounting member includes a mounting groove (111) formed on the top of the sliding plate (14); An auxiliary component (12), the auxiliary component (12) being fixedly connected to the inner wall of the mounting groove (111) via a limiting member; The limiting member comprises a fixing rod (121) fixedly connected to the inner wall of the mounting groove (111), and a spring sheet (122) is slidably provided at the bottom of the fixing rod (121); The spring sheet (122) is in a bent state when not squeezed by external pressure, and when the spring sheet (122) is in a gap position between the sliding plate (14) and the fixed plate (13), the spring sheet (122) is compressed and in a straight state, and mechanical power is accumulated; The linkage mechanism (2) comprises: A pushing mechanism (21), wherein the pushing mechanism (21) is rotatably arranged on a side wall of the first fixing rod (121); a positioning mechanism (22), wherein the positioning mechanism (22) is fixedly arranged on the outer wall of the auxiliary component (12); When the external pressure on the spring sheet (122) disappears, the spring sheet (122) will be forced to tilt upward away from one end of the fixing rod (121), and the tilting force will force the pushing mechanism (21) to move; The limiting mechanism (3) comprises: A snap assembly (31), wherein the snap assembly (31) is provided on a side wall of the fixing mechanism (1); A limiting assembly (32), wherein the limiting assembly (32) is fixedly connected to the outer wall of the limiting track (112); After the spring sheet (122) bounces upward, as the sliding plate (14) continues to move backward, the spring sheet (122) will be restricted by the positioning assembly (11) and slowly reset downward. At this time, the auxiliary assembly (12) will contact the outer wall of the curved hanging sheet (312) and form a snap-fit state; The pushing mechanism (21) includes a rotating support plate (211) rotatably connected to the inner wall of the fixing rod (121), an end of the rotating support plate (211) away from the fixing rod (121) is rotatably connected to a fixing frame (212), and a through hole (213) is provided on the side wall of the spring sheet (122); Among them, after the spring piece (122) tilts upward, since the length of the rotating support plate (211) is fixed, the rotating support plate (211) will push the fixed frame (212) to move outward along the inner wall of the sliding support plate (123); The positioning mechanism (22) includes a second fixed rod (221) fixedly connected to the side wall of the sliding support plate (123). A rotating short rod (222) is rotatably connected to the side wall of the second fixed rod (221). A rotating long rod (223) is fixedly connected to the side wall of the rotating short rod (222). A card slot (224) is formed in the side wall of the spring piece (122); Among them, since the length of the rotating long rod (223) is longer than that of the rotating short rod (222), when the sliding support plate (123) extends outward, when the rotating short rod (222) moves outward, it drives the rotating long rod (223) to rotate upward synchronously. When the sliding support plate (123) is reset due to external pressure, since the rotating long rod (223) and the rotating short rod (222) are in a perpendicular state, when the sliding support plate (123) retracts, the rotating long rod (223) and the rotating short rod (222) will limit the movement of the sliding support plate (123).

2. The adjustable-spacing cable tray according to claim 1, wherein: The positioning component (11) includes a first limiting track (112) fixedly connected to the top of the fixed plate (13). A second limiting track (113) is fixedly connected to the side wall of the first limiting track (112); Among them, after the spring piece (122) tilts upward, it will extend, and the extended part will enter the inner wall of the first limiting track (112). At this time, the spring piece (122), the fixed plate (13), and the first limiting track (112) will form a triangular state.

3. The adjustable-spacing cable tray according to claim 2, wherein: The auxiliary component (12) includes a sliding support plate (123) slidably connected to the inner wall of the spring piece (122). A spring thin scraping piece (124) is fixedly connected to one end of the sliding support plate (123) away from the first fixed rod (121); Among them, after the spring piece (122) tilts upward, the upward tilting thrust will force the sliding support plate (123) to move outward along the inner wall of the spring piece (122) through the pushing mechanism (21).

4. The adjustable-spacing cable tray according to claim 3, wherein: The buckle component (31) includes an empty slot (311) formed in the side wall of the sliding support plate (123). A bent hanging piece (312) is fixedly connected to the side wall of the spring piece (122); When the distance between the fixed plate (13) and the sliding plate (14) continues to extend, the extended auxiliary component (12) will be affected by the second limiting track (113) and reset downward.

5. The adjustable-spacing cable tray according to claim 4, wherein: The limiting component (32) includes an obstructive rod (321) fixedly connected to the inner wall of the first limiting track (112). A reinforcing rib (322) is fixedly connected to the outer wall of the second limiting track (113); Among them, the outer wall of the obstructive rod (321) is in a fitting state with the outer wall of the spring thin scraping piece (124).

6. The adjustable-spacing cable tray according to claim 5, wherein: The outer wall of the reinforcing rib (322) away from the first limiting track (112) is fixedly connected to the outer wall of the fixed plate (13). The side wall of the fixed frame (212) is fixedly connected to the side wall of the sliding support plate (123).

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