Adjustable supporting cushion for construction of limiting noise reduction cable trench cover plate

Abstract

This application provides an adjustable support pad for the construction of a limit-positioning and noise-reducing cable trench cover, relating to the field of cable trench construction equipment. It includes a sleeve, a lead rod, and a pad. The sleeve is connected to a pre-embedded reinforcing bar. An adjusting element is provided at the top of the sleeve, and a threaded hole is provided in the middle of the adjusting element. One end of the lead rod is located above the adjusting element and connected to the bottom of the pad. The other end of the lead rod passes through the adjusting element and the sleeve in sequence. The lead rod is threadedly connected to the threaded hole of the adjusting element, and the outer wall of the lead rod is in close contact with the inner wall of the sleeve. The sleeve and the pre-embedded reinforcing bar are connected by a connecting mechanism, which includes a U-shaped clamping strip. The bottom of the clamping strip is connected to the sleeve, and the groove of the clamping strip is engaged with the outside of the pre-embedded reinforcing bar. This application has the effect of improving the flatness of the angle steel placed on the pad.

Description

Technical Field

[0001] This application relates to the field of cable trench construction equipment, and in particular to adjustable support pads for the construction of limit-position noise-reducing cable trench covers. Background Technology

[0002] Cable laying refers to the process of laying and installing cables along a surveyed route to form a cable line. Depending on the application, it can be divided into several laying methods, including overhead, underground pipeline, direct burial, underwater, wall, and tunnel laying. Among these, direct burial is not suitable for power cables of 10kV and below. Therefore, in locations with dense cable networks, such as substations, cable trenches are generally excavated for cable laying. This effectively protects the cables and facilitates future maintenance or replacement.

[0003] Currently, when constructing cable trenches, after the trench is excavated, steel bars need to be pre-embedded at the trench opening and angle steel welded on. A pair of angle steels extend along the length of the trench, and then a cover plate is placed on the pair of angle steels to seal the trench. The cover plate serves to prevent rain, and the inspection vehicle inside the substation can also walk on the cover plate to inspect the equipment inside the substation.

[0004] However, when welding angle steel and reinforcing bars, there is a problem that the flatness elevation is difficult to control. That is, after the angle steel is welded, it will be tilted, and two adjacent angle steels will tilt at different angles. This makes it more difficult to install the cover plate, and the cover plate cannot form a flat surface, which will reduce the rainproof effect of the cover plate. It will also prevent the inspection vehicle from walking smoothly on the cover plate and generate more noise when it moves. Summary of the Invention

[0005] To address the issue of poor flatness after angle steel welding during construction, which prevents accurate installation of the cover plate, this application provides an adjustable support pad for the construction of a limit-positioning and noise-reducing cable trench cover plate.

[0006] This application provides an adjustable support pad for the construction of a limit-position noise-reducing cable trench cover, employing the following technical solution:

[0007] An adjustable support pad for the construction of a noise-reducing cable trench cover includes a sleeve, a threaded rod, and a pad. The sleeve is connected to a pre-embedded steel bar. An adjusting element is provided at the top of the sleeve, and a threaded hole is provided in the middle of the adjusting element. One end of the threaded rod is located above the adjusting element and connected to the bottom of the pad. The other end of the threaded rod passes through the adjusting element and the sleeve in sequence. The threaded rod and the threaded hole of the adjusting element are connected by threads. The outer wall of the threaded rod and the inner wall of the sleeve are in a mutually fitted state.

[0008] By adopting the above technical solution, after the pre-embedded steel bars are completed, the sleeves are temporarily fixed to the pre-embedded steel bars by welding or binding with cable ties. Multiple sleeves are set at intervals along the length of the cable trench, and there is a distance between the bottom of the sleeve and the bottom surface. Then, a level is set at the starting end. Using the pad on the sleeve at the starting end as a reference, the pads at other positions are rotated by the mark shot by the level. This causes the screw at the bottom of the corresponding pad to rotate in the adjusting part and the sleeve, thereby adjusting the height of the pad at that position. After the adjustment is completed, since the screw and the adjusting part are connected by threads, they have a self-locking function. The pad is locked after it is rotated into place. In this way, under the calibration of the level, the height of multiple pads can be adjusted to be consistent by rotating the screw in the adjusting part. Thus, when the angle steel is placed on multiple pads, it can be in a straight state with high flatness, and it can ensure accurate connection between two adjacent angle steels. After the angle steel is laid, the cover plate can be laid flat on the angle steel, and the inspection trolley can also move smoothly on the cover plate.

[0009] Optionally, the sleeve and the embedded steel bar are connected by a connecting mechanism, the connecting mechanism including a U-shaped clamping strip, the bottom of the clamping strip being connected to the sleeve, and the groove of the clamping strip being engaged with the outside of the embedded steel bar.

[0010] By adopting the above technical solution, during construction, the sleeve can be held and the clips on the sleeve can be inserted into the pre-embedded steel bars. The initial connection between the sleeve and the pre-embedded steel bars can be achieved by using the engagement between the clips and the pre-embedded steel bars. The operation is simple, the engagement effect is good, and it saves time for adjusting the height of the pad.

[0011] Optionally, the connecting mechanism further includes a locking bolt and a locking nut. The locking bolt is inserted into the slot of the locking strip from one side and exits from the other side of the locking strip. The locking nut is adapted to be screwed onto the locking bolt and is located on the other side of the locking strip.

[0012] By adopting the above technical solution, after the locking strip is engaged with the embedded steel bar, the locking bolt is inserted into the locking strip, so that the locking bolt can be screwed into the locking nut after passing through the locking strip. In this way, through the cooperation of the locking bolt and the locking nut, deformation can be achieved at the groove position of the locking strip. This ensures that the locking strip reliably clamps the embedded steel bar, and avoids the connection between the locking strip and the embedded steel bar becoming loose or falling off when rotating the screw rod to adjust the height of the pad, which would cause the height of the pad to change and require subsequent reinstallation and adjustment, thus reducing work efficiency.

[0013] Optionally, a movable plate is provided above the pad, and a receiving groove is provided at the bottom of the movable plate. The pad is placed in the receiving groove. A through hole is provided at each of the four corners of the top of the movable plate. An adjusting nut is fixed in the through hole. The pad has multiple through holes corresponding to the through holes. The adjusting bolt passes through the through holes and the through holes sequentially from the bottom of the pad upwards and is screwed into the adjusting nut.

[0014] By adopting the above technical solution, the movable plate is fitted onto the top of the pad through the receiving groove. After the height of the pad is initially adjusted, an adjusting bolt can be rotated to continuously tighten the adjusting bolt and the adjusting nut. In this way, the distance between the pad and the movable plate is reduced at the position of the adjusting bolt, causing the angle of the pad to change. That is to say, by rotating the adjusting bolt at different positions, the movable plate at the corresponding position can be raised or lowered, thereby realizing multi-angle adjustment of the movable plate. This avoids the pad not being able to be in a horizontal state due to the deviation of the connection angle between the screw and the pad, which would reduce the support effect on the angle steel. The movable plate, which can be rotated, makes up for the tilt angle of the pad and supports the angle steel, ensuring that the angle steel can be in a horizontal state after the angle steel and the movable plate are welded.

[0015] Optionally, the inner diameter of the through hole is larger than the outer diameter of the adjusting bolt, the tail of the adjusting bolt presses against the bottom of the pad, and the head of the adjusting bolt is screwed into the adjusting nut.

[0016] By adopting the above technical solution, the adjusting nut is fixedly set. When the distance between the movable plate and the pad changes after the adjusting bolt is screwed into the adjusting nut, the angle between the adjusting bolt and the pad will also change. Since the inner diameter of the through hole is larger than the outer diameter of the adjusting bolt, there is enough distance between the adjusting bolt and the inner wall of the through hole for the angle of the adjusting bolt to change, ensuring that the adjusting bolt can rotate, thereby ensuring that the cooperation between the adjusting bolt and the adjusting nut can realize the adjustment of the angle of the movable plate.

[0017] Optionally, a rubber pad is fixedly provided inside the perforation, and the rubber pad has a stepped hole that runs through the axis, wherein the upper inner diameter of the stepped hole is larger than the lower inner diameter of the stepped hole.

[0018] The stepped hole is a square hole, and the adjusting nut is fitted into the upper part of the stepped hole.

[0019] By adopting the above technical solution, the rubber pad is fixed in the through hole, and because the stepped hole in the rubber pad is square, the adjusting nut can be more firmly locked in the stepped hole of the rubber pad. In this way, when the adjusting bolt is screwed into the adjusting nut to adjust the distance between the pad and the movable plate, the adjusting nut will not rotate, ensuring that there is sufficient locking force between the adjusting nut and the adjusting bolt.

[0020] Optionally, a limiting plate is provided at the top of the perforation, the bottom of the limiting plate covers the top of the rubber pad, and the top of the limiting plate is flush with the top of the movable plate.

[0021] By adopting the above technical solution, the limiting plate can limit the rubber pad, effectively preventing the rubber pad from coming out of the perforation, which would prevent the locking effect between the adjusting bolt and the adjusting nut from being achieved.

[0022] Optionally, the top of the sleeve is provided with an annular groove, and the bottom of the groove is provided with a plurality of cavities communicating with the groove, the plurality of cavities being arranged circumferentially and at intervals at the bottom of the groove;

[0023] The bottom of the adjusting member is provided with at least one pair of limiting rods, and both of the limiting rods are inserted into the groove and extend to the bottom of the corresponding cavity.

[0024] By adopting the above technical solution, the sleeve and the adjusting component are in contact with each other but not connected. When the sleeve and the adjusting component are connected, the limiting rod is inserted into the groove and extends to the bottom of the cavity. This limiting effect of the cavity on the limiting rod ensures that the adjusting component will not rotate. Thus, the lead screw can rotate within the adjusting component, achieving the desired length at the top of the adjusting component, thereby adjusting the height of the pad. When the height of the pad is adjusted and rotation is required, the adjusting component is lifted upwards, causing the limiting rod to move out of the cavity. This releases the limiting effect of the cavity on the limiting rod. Rotating the adjusting component allows for the overall rotation of the lead screw and the pad. The rotation of the pad adjusts the contact area between the pad and the angle steel, ensuring that the pad reliably supports the angle steel.

[0025] Optionally, the inner diameter of the cavity is larger than the width of the groove;

[0026] The bottom of the limiting rod is provided with a rotating rod, and the top of the rotating rod is provided with a waist hole. A rotating shaft extending along the width direction of the waist hole is provided in the waist hole. The waist hole is sleeved on the outside of the bottom of the limiting rod. The rotating shaft passes through the limiting rod, and the rotating rod rotates around the limiting rod through the rotating shaft.

[0027] By adopting the above technical solution, the rotating rod, in cooperation with the rotating shaft and the waist hole, can rotate around the limiting rod. Thus, when the limiting rod drives the rotating rod to move downward, the rotating rod will rotate towards the vertical position, thereby ensuring that the rotating rod and the limiting rod can be displaced into the cavity. After the rotating rod and the limiting rod are displaced into the cavity, the rotating rod returns to the horizontal position under the action of gravity and locks against the inner wall of the cavity. This can further improve the limiting effect of the limiting rod, minimize the rotation amplitude of the adjusting component during the rotation of the lead screw and the adjustment of the pad height, and improve the accuracy of the pad height adjustment.

[0028] Optionally, the length of the rotating rod is greater than the width of the groove and less than the inner diameter of the cavity;

[0029] The outer wall of the sleeve is provided with a plurality of insertion holes, which are respectively and correspondingly connected to a plurality of cavities. Insertion rods are inserted into the insertion holes, and the insertion rods extend into the cavities and are located above the rotating rods.

[0030] By adopting the above technical solution, when it is necessary to lift the adjusting component to achieve the rotation of the pad, the insert rod is inserted into the cavity. In this way, one end of the rotating rod will contact the insert rod, and the rotating rod will rotate again in the vertical direction under the limiting action of the insert rod. This ensures that the rotating rod can be displaced from the cavity into the groove, thereby releasing the limiting action of the limiting rod.

[0031] In summary, this application has the following beneficial effects:

[0032] 1. The sleeve is initially fixed on the pre-embedded steel bar by the connector. Then, the height of the pad is adjusted by rotating the screw and using the threaded connection between the screw and the adjusting part. This adjusts multiple pads to the same level, thus improving the flatness between multiple angle steels after the angle steel is placed on the pad.

[0033] 2. By installing a movable plate on the outside of the pad and adjusting the angle of the movable plate by adjusting the bolts and nuts, the movable plate can be adjusted to ensure that it is in contact with the angle steel.

[0034] 3. A groove and multiple cavities are set at the top of the sleeve, and multiple limit rods are set at the bottom of the adjusting component. In this way, by lifting the adjusting component and causing it to fall out of the cavity, the adjusting component, the lead screw, and the pad can be rotated as a whole, maximizing the contact area between the pad and the angle steel, thereby improving the support effect on the angle steel. Attached Figure Description

[0035] Figure 1 Schematic perspective view of this application;

[0036] Figure 2This is a schematic diagram of the internal structure of this application;

[0037] Figure 3 This is a schematic perspective view of the connecting mechanism and the sleeve in this application;

[0038] Figure 4 yes Figure 2 Enlarged structural diagram at point A in the diagram;

[0039] Figure 5 This is an enlarged structural diagram of point B in this application;

[0040] Figure 6 This is a schematic perspective view of the limiting rod and the rotating rod in this application;

[0041] In the diagram: 1. Sleeve; 11. Adjusting component; 110. Threaded hole; 12. Connecting mechanism; 121. Locking strip; 122. Locking bolt; 123. Locking nut; 13. Groove; 14. Cavity; 15. Limiting rod; 16. Rotating rod; 161. Waist hole; 162. Rotating shaft; 17. Insertion hole; 18. Insertion rod; 2. Screw rod; 3. Pad; 31. Movable plate; 311. Receiving groove; 312. Through hole; 313. Adjusting nut; 314. Adjusting bolt; 315. Rubber pad; 3150. Stepped hole; 316. Limiting plate; 32. Through hole; 4. Embedded steel bar. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0043] Figure 1 Schematic perspective view of this application, Figure 2 This is a schematic diagram of the internal structure of this application. See also: Figure 1 and Figure 2 An adjustable support pad for the construction of a noise-reducing cable trench cover is provided. Multiple adjustable supports are spaced apart on the pre-embedded steel bars 4 and used to support the angle steel. The adjustable support pad includes a sleeve 1, a screw rod 2 and a pad 3. The sleeve 1 is initially fixed to the pre-embedded steel bars 4 through a connecting mechanism 12. The sleeve 1 is a tubular structure with a smooth inner wall. The top of the sleeve 1 is provided with an adjusting part 11. The middle part of the adjusting part 11 is provided with a threaded hole 110. The pad 3 is a plate-shaped structure. The bottom of the pad 3 is connected to one end of the screw rod 2 by welding. The other end of the screw rod 2 passes through the adjusting part 11 and the sleeve 1 in sequence. The screw rod 2 and the adjusting part 11 are threadedly connected through the threaded hole 110. The sleeve 1 wraps around the screw rod 2 but has no connection with the screw rod 2.

[0044] After the connecting mechanism 12 initially fixes the sleeve 1 onto the embedded reinforcing bar 4, the height of each pad 3 on the multiple adjustable supports is adjusted to ensure they are at a relatively consistent height. Then, according to design requirements, the height of the pad 3 at the front or rear end is measured and adjusted to meet the design requirements. Next, a level is activated, and a baseline is shot out using the adjusted pad 3 as a reference. The height of the other pads 3 is adjusted according to this baseline until all pads 3 are at the same height. Finally, multiple angle steels are placed sequentially on the pads 3. This ensures high flatness between the angle steels, which is beneficial for the subsequent laying of the cover plate. After the angle steels are placed, they are welded to the pads 3 to fix them in place. Then, concrete is poured, leaving only the angle steels exposed, thus achieving complete and reliable fixation of the angle steels.

[0045] Figure 3 This is a schematic perspective view of the connecting mechanism 12 and the sleeve 1 in this application. See also Figure 3 The connecting mechanism 12 includes a U-shaped retaining strip 121. The bottom of the retaining strip 121 is connected to the sleeve 1. The groove of the retaining strip 121 is engaged with the outside of the pre-embedded reinforcing bar 4. A locking bolt 122 passes through the groove of the retaining strip 121. A locking nut 123 is provided on the outer wall of the retaining strip 121. After the locking bolt 122 passes through the retaining strip 121, it is screwed into the locking nut 123. As the locking force between the locking bolt 122 and the locking nut 123 gradually increases, the retaining strip 121... The groove of the retaining strip 121 will undergo a certain deformation, gradually closing. This allows the retaining strip 121 to wrap around and lock the embedded reinforcing bar 4, maintaining a fixed connection between the retaining strip 121 and the embedded reinforcing bar 4. This ensures that when the angle steel is placed on the pad 3, the force exerted by the angle steel on the pad 3 is transmitted to the retaining strip 121 through the threaded rod 2 and sleeve 1, preventing the retaining strip 121 from loosening. This ensures reliable and stable support for the angle steel by the pad 3. To facilitate the quick screwing of the locking bolt 122 into the locking nut 123, the locking nut 123 can be welded to the outer wall of the retaining strip 121 and coaxial with the hole through which the locking bolt 122 passes. This allows the locking bolt 122 to immediately engage with the locking nut 123 after passing through the hole, increasing the locking speed of the retaining strip 121 on the embedded reinforcing bar 4 and improving overall assembly efficiency.

[0046] Figure 4 yes Figure 2 A magnified structural diagram at point A in the diagram. See also... Figure 4A movable plate 31 is provided above the pad 3. A receiving groove 311 is provided at the bottom of the movable plate 31. The pad 3 is placed inside the receiving groove 311. There is a distance between the inner wall of the receiving groove 311 and the outer wall of the pad 3. Four through holes 312 are provided at the top of the movable plate 31, distributed around its four corners. Four through holes 32 are provided at the top of the pad 3. The four through holes 32 and the four through holes 312 are coaxially arranged, each corresponding to one of them. Rubber pads 315 are provided inside the through holes 312. An adjusting nut 313 is fixedly installed between a rubber pad 315 and a through hole 312. A stepped hole 3150 is provided in the middle of the rubber pad 315. The stepped hole 3150 has a structure that is larger at the top and smaller at the bottom and is composed of two square holes. An adjusting nut 313 is placed on the upper part of the stepped hole 3150. The adjusting nut 313 is locked on the upper part of the rubber pad 315. An adjusting bolt 314 is inserted upward through the bottom of the pad 3. The adjusting bolt 314 passes through the through hole 32 and is screwed into the adjusting nut 313.

[0047] Because the pad 3 and the lead screw 2 are welded together, there will be a problem with the perpendicularity between the pad 3 and the lead screw 2, meaning the pad 3 will be tilted. When the adjusting bolt 314 is rotated, since the position of the adjusting nut 313 is fixed, the adjusting bolt 314 will cause the pad 3 at that position to move towards the bottom or opening of the receiving groove 311 during rotation (if the adjusting bolt 314 is continuously tightened towards the adjusting nut 313, the pad 3 moves towards the bottom of the receiving groove 311; if the adjusting bolt 314 is continuously loosened towards the adjusting nut 313, the pad 3 moves towards the opening of the receiving groove 311). In other words, when one of the four adjusting bolts 314 rotates, the pad 3 moves relative to the movable plate 3... The 1 will move within a certain range based on the adjusting bolt 314. Since the pad 3 and the screw 2 are welded together, the adjusting bolt 314 pushes and pulls the movable plate 31, so that the angle of the movable plate 31 can be adjusted. In this way, after targeted adjustment of the four sets of adjusting bolts 314 and adjusting nuts 313, it can be ensured that the setting of the movable plate 31 can make up for the tilt of the pad 3, and ensure that the pad 3 and the movable plate 31 can more reliably support the angle steel, thereby improving the flatness after the angle steel is laid, facilitating the laying of cover plates on the angle steel later, and ensuring that the inspection trolley can move smoothly on several cover plates without overturning, and also reducing the noise during the movement.

[0048] See Figure 2 and Figure 4Because the position of the pad 3 remains fixed during the adjustment of the angle of the movable plate 31 by the adjusting bolt 314, the adjusting bolt 314 and the adjusting nut 313 will deflect to a certain extent. As a result, the rubber pad 315 used to clamp the adjusting nut 313 will be squeezed by the adjusting nut 313 and deform to a certain extent. At the same time, the inner diameter of the through hole 32 is larger than the outer diameter of the adjusting bolt 314, ensuring that the adjusting bolt 314 has enough space in the through hole 32 for its own rotation. In other words, through the elastic deformation of the rubber pad 315 and the setting of the deflection margin in the through hole 32, it is ensured that the locking amount between the adjusting nut 313 and the adjusting bolt 314 can realize the multi-angle rotation of the movable plate 31. Thus, the movable plate 31 can compensate for the tilt of the pad 3, ensuring reliable support for the angle steel.

[0049] Furthermore, to prevent the rubber pad 315 from detaching from the perforation 312, a limiting plate 316 is provided at the top of the perforation 312. The limiting plate 316 is flush with the top of the movable plate 31. While ensuring the flatness of the top of the movable plate 31, it ensures that the rubber pad 315 will not fall off the top of the perforation 312. The bottom of the perforation 312 is close to the top of the pad 3, and the pad 3 also limits the rubber pad 315, preventing the pad from falling off the bottom of the perforation 312.

[0050] Figure 5 This is an enlarged structural diagram of point B in this application. Figure 6 This is a schematic perspective view of the limiting rod 15 and the rotating rod 16 in this application. See also Figure 5 and Figure 6 The top of the sleeve 1 is provided with an annular groove 13. The bottom of the groove 13 is provided with several cavities 14 at intervals. The cavities 14 are arranged in a circular shape and are cylindrical and communicate with the groove 13. The inner diameter of the cavity 14 is larger than the width of the groove 13. The bottom of the adjusting member 11 is provided with at least one pair of limiting rods 15. The lower end of the limiting rod 15 passes through the groove 13 and is inserted into the cavity 14. The bottom of the limiting rod 15 is provided with a rotating rod 16. The top of the rotating rod 16 is provided with a waist hole 161. A rotating shaft 162 extending along the width direction of the waist hole 161 is provided in the waist hole 161. The waist hole 161 is sleeved on the outer side of the bottom of the limiting rod 15. The rotating shaft 162 passes through the limiting rod 15, and the rotating rod 16 rotates around the limiting rod 15 through the rotating shaft 162.

[0051] See Figure 6When the rotating rod 16 is located inside the cavity 14, under the limiting action of the cavity 14, the rotating rod 16 and the limiting rod 15 will be stuck inside the cavity 14. Thus, the adjusting member 11, which is fixedly connected to the limiting rod 15, cannot rotate. At this time, the lead screw 2 can be rotated to adjust the height of the pad 3. When the pad 3 needs to be rotated, the adjusting member 11 can be lifted upwards. At the same time, multiple insertion holes 17 are provided on the outer wall of the sleeve 1, and insertion rods 18 are inserted into the insertion holes 17. The insertion rods 18 can extend into the cavity 14 and are located above the rotating rod 16. In this way, when the adjusting member 11 and the rotating rod 16 are lifted together, one end of the rotating rod 16 contacts the insertion rod 18. Thus, the rotating rod 16 will rotate under the interference of the insertion rod 18. Through the setting of the waist hole 161, the rotating rod 16 can rotate in the vertical direction and enter the groove 13. At this time, the limiting effect of the cavity 14 on the limiting rod 15 is released. The adjusting member 11 can rotate around the axis of the sleeve 1 under the support of the limiting rod 15, thereby driving the screw 2 and the pad 3 to rotate as a whole, realizing the angle adjustment of the pad 3, maximizing the contact area between the pad 3 and the angle steel, and thus improving the support effect on the angle steel. The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable support pad for the construction of a limit-positioning and noise-reducing cable trench cover, used to support angle steel, characterized in that... The device includes a sleeve (1), a lead screw (2), and a pad (3). The sleeve (1) is connected to a pre-embedded steel bar (4). An adjusting member (11) is provided at the top of the sleeve (1). A threaded hole (110) is provided in the middle of the adjusting member (11). One end of the lead screw (2) is located above the adjusting member (11) and connected to the bottom of the pad (3). The other end of the lead screw (2) passes through the adjusting member (11) and the sleeve (1) in sequence. The lead screw (2) is connected to the threaded hole (110) of the adjusting member (11) by a thread. The outer wall of the lead screw (2) and the inner wall of the sleeve (1) are in a state of mutual contact. The top of the sleeve (1) is provided with an annular groove (13), and the bottom of the groove (13) is provided with a plurality of cavities (14) communicating with the groove (13). The plurality of cavities (14) are arranged in a circle and spaced apart on the bottom of the groove (13). The bottom of the adjusting member (11) is provided with at least one pair of limiting rods (15), and the pair of limiting rods (15) are inserted into the groove (13) and extend to the bottom of the corresponding cavity (14); The inner diameter of the cavity (14) is greater than the width of the groove (13); The bottom of the limiting rod (15) is provided with a rotating rod (16), the top of the rotating rod (16) is provided with a waist hole (161), the waist hole (161) is provided with a rotating shaft (162) extending along the width direction of the waist hole (161), the waist hole (161) is sleeved on the bottom outside of the limiting rod (15), the rotating shaft (162) passes through the limiting rod (15), and the rotating rod (16) rotates around the limiting rod (15) through the rotating shaft (162); The length of the rotating rod (16) is greater than the width of the groove (13) and less than the inner diameter of the cavity (14); The outer wall of the sleeve (1) is provided with a plurality of insertion holes (17), and the plurality of insertion holes (17) are connected to a plurality of cavities (14) in a corresponding manner. Insertion rods (18) are inserted into the insertion holes (17), and the insertion rods (18) extend into the cavities (14) and are located above the rotating rods (16).

2. The adjustable support pad for construction of the limiting and noise-reducing cable trench cover as described in claim 1, characterized in that, The sleeve (1) and the embedded steel bar (4) are connected by a connecting mechanism (12). The connecting mechanism (12) includes a U-shaped clamping strip (121). The bottom of the clamping strip (121) is connected to the sleeve (1), and the groove of the clamping strip (121) is clamped on the outside of the embedded steel bar (4).

3. The adjustable support pad for construction of the limiting and noise-reducing cable trench cover according to claim 2, characterized in that, The connecting mechanism (12) further includes a locking bolt (122) and a locking nut (123). The locking bolt (122) is inserted into the slot of the clip (121) from one side and exits from the other side of the clip (121). The locking nut (123) is adapted to be screwed onto the locking bolt (122) and located on the other side of the clip (121).

4. The adjustable support pad for construction of the limiting and noise-reducing cable trench cover according to claim 1, characterized in that, The pad (3) has a movable plate (31) above it. The bottom of the movable plate (31) has a receiving groove (311). The pad (3) is located in the receiving groove (311). The top four corners of the movable plate (31) are provided with a through hole (312). An adjusting nut (313) is fixedly installed in the through hole (312). The pad (3) has a plurality of through holes (32) that correspond one-to-one with the through holes (312). The adjusting bolt (314) passes through the through hole (32) and the through hole (312) from the bottom of the pad (3) and is screwed into the adjusting nut (313).

5. The adjustable support pad for construction of the limiting and noise-reducing cable trench cover according to claim 4, characterized in that, The inner diameter of the through hole (32) is larger than the outer diameter of the adjusting bolt (314). The tail of the adjusting bolt (314) presses against the bottom of the pad (3), and the head of the adjusting bolt (314) is screwed into the adjusting nut (313).

6. The adjustable support pad for construction of the limiting and noise-reducing cable trench cover according to claim 4, characterized in that, A rubber pad (315) is fixedly provided inside the perforation (312). The rubber pad (315) is provided with a stepped hole (3150) that runs through the axis. The upper inner diameter of the stepped hole (3150) is larger than the lower inner diameter of the stepped hole (3150). The stepped hole (3150) is a square hole, and the adjusting nut (313) is adapted to be engaged at the upper part of the stepped hole (3150).

7. The adjustable support pad for construction of the limiting and noise-reducing cable trench cover according to claim 6, characterized in that, The top of the perforation (312) is provided with a limiting plate (316), the bottom of the limiting plate (316) covers the top of the rubber pad (315), and the top of the limiting plate (316) is flush with the top of the movable plate (31).

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