Floating slab embedded outer sleeve and floating slab track system

Abstract

The utility model discloses a floating slab pre-embedded outer sleeve and a floating slab track system, the outer sleeve comprises a sleeve body, the sleeve body comprises an upper sleeve section and a lower sleeve section, the outer sleeve wall of the upper sleeve section is a first conical surface which is gradually reduced along with the height, the outer sleeve wall of the lower sleeve section is a second conical surface which is gradually increased along with the height, and the first conical surface is a conical surface; the large end of the upper cylinder section is integrally connected with the large end of the lower cylinder section; a plurality of circles of annular concave-convex connecting structures for preventing falling are uniformly distributed and fixed on the first conical surface along the height direction of the first conical surface; and a plurality of barb bosses for preventing falling are uniformly distributed and fixed on the second conical surface along the circumferential direction. According to the outer sleeve, under the joint matching action of the first conical surface, the second conical surface, the annular concave-convex connecting structure and the barb boss, the connecting strength between the outer sleeve and the concrete floating slab can be improved, and the outer sleeve can be embedded in the concrete floating slab more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit, and more specifically, to a pre-embedded outer sleeve for a floating slab and a floating slab track system. Background Art

[0002] The vibration and noise problems caused by urban rail transit have a non-negligible impact on the lives of residents along the line and even the structural safety of the overlying buildings. The floating slab track bed system is one of the means with the strongest comprehensive performance among many existing vibration reduction track design schemes, and has been widely applied in the field of urban rail transit.

[0003] For example, in the existing CN105840725A, named screw shock absorber and isolator, its threaded sleeve is equivalent to a pre-embedded cylinder, and its outer wall is provided with concave and convex structures for increasing the contact area with concrete and improving the connection strength between the pre-embedded cylinder and concrete. However, the outer wall of this sleeve is a straight cylinder surface structure, and there is still a risk of the sleeve slipping out of the floating slab. Moreover, in CN105821722 B, named screw shock absorber floating slab track system and its jacking equipment and jacking method, there is still a risk of the sleeve slipping out of the floating slab.

[0004] On the other hand, at present, floating slab vibration isolators mainly include two categories: spiral steel spring vibration isolators and rubber vibration isolators. Although the spiral steel spring vibration isolators have high design accuracy for vertical stiffness, they have certain difficulties in the design of lateral stiffness and are difficult to meet the requirements of multi-directional stiffness, such as CN105840725A, named screw shock absorber and isolator, CN105821722B, named screw shock absorber floating slab track system and its jacking equipment and jacking method, CN206111927U - spiral jacking spring shock absorber for track floating slab, CN208830062U - a subway track bed shock reduction system with a new type of intelligent steel spring floating slab structure, CN209245142U - a self-locking type limit shock absorber. The rubber vibration isolators can achieve targeted design of multi-directional stiffness by designing the shape and assembly method of the rubber group, and the modular rubber group can reduce the replacement difficulty and further improve the comprehensive performance of the floating slab vibration isolator on the premise of ensuring the maintenance cost. For example, in the existing CN218932741U, named a high-performance rubber vibration isolator and its track system. However, this vibration isolator does not adopt an integral rotating vibration isolator, but a split rotatable connection between the adapter top plate and the adjustment table. Although a spacer is provided between the adapter top plate and the adjustment table to reduce the friction and wear between the two, when the adapter top plate rotates, since the adjustment table is fixed and does not rotate, there is still a certain amount of wear and tear between the adjustment table and the adapter plate, thereby reducing the service life of the components, increasing the maintenance cost, and the internal shock-absorbing components are prone to excessive wear due to reverse torque, which easily affects the use performance of the vibration isolator.

[0005] Therefore, how to provide an outer sleeve that can better bond with the floating slab, improve the connection strength between the outer sleeve and the floating slab, make the outer sleeve not easily fall off from the floating slab, and enable the overall rotation of the vibration isolator during stepless height adjustment, thereby reducing the friction loss of components and the maintenance cost, is an urgent problem to be solved by those skilled in the art for the embedded outer sleeve of the floating slab and the floating slab track system. Summary of the Invention

[0006] In view of this, the present invention provides an embedded outer sleeve for a floating slab and a floating slab track system, in which the outer sleeve can better bond with the floating slab, improve the connection strength between the outer sleeve and the floating slab, make the outer sleeve not easily fall off from the floating slab, and enable the overall rotation of the vibration isolator during stepless height adjustment, thereby reducing the friction loss of components and the maintenance cost.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An embedded outer sleeve for a floating slab, comprising: a cylinder body, the cylinder body includes an upper cylinder section and a lower cylinder section, the outer cylinder wall of the upper cylinder section is a first tapered surface that gradually decreases with height, the outer cylinder wall of the lower cylinder section is a second tapered surface that gradually increases with height, and the large end of the upper cylinder section is integrally connected to the large end of the lower cylinder section;

[0009] A plurality of circumferentially distributed and fixed multi-turn annular concave-convex connection structures for anti-detachment are arranged along the height direction on the first tapered surface; a plurality of barb bosses for anti-detachment are circumferentially distributed and fixed along the circumferential direction on the second tapered surface.

[0010] It can be seen from the above technical solutions that compared with the prior art, the present invention discloses an embedded outer sleeve for a floating slab. The outer sleeve is embedded in the concrete floating slab. The first tapered surface can prevent the outer sleeve from being pulled out of the floating slab upward, the second tapered surface can prevent the outer sleeve from being pulled out of the floating slab downward, and the multi-turn annular concave-convex connection structures increase the connection strength between the outer sleeve and the concrete floating slab, and further prevent the outer sleeve from being pulled out of the floating slab upward or downward. In addition, the setting of the barb bosses also effectively prevents the outer sleeve from protruding downward from the floating slab. Therefore, under the combined action of the first tapered surface, the second tapered surface, the annular concave-convex connection structures and the barb bosses, the connection strength between the outer sleeve and the concrete floating slab can be improved, and the outer sleeve can be more firmly embedded in the concrete floating slab.

[0011] Further, the top surface of the barb boss is a third tapered surface that gradually decreases with the height direction.

[0012] The beneficial effects of adopting the above technical solution are as follows: The barb boss can not only effectively prevent the outer sleeve from slipping out of the concrete floating slab downward by means of the barbs thereon, but also prevent the outer sleeve from slipping out of the concrete floating slab upward by means of the third conical surface thereon, realizing two-way anti-detachment and greatly improving the stability of the outer sleeve embedded in the concrete floating slab.

[0013] The utility model provides a floating slab track system, comprising: a concrete floating slab, the above-mentioned floating slab embedded outer sleeve, and a vibration isolator. The barrel body is embedded inside the concrete floating slab. An internal thread structure is provided on the inner wall of the barrel body. An external thread structure is provided on the outer wall of the top of the vibration isolator. The external thread structure is in threaded connection with the internal thread structure. The bottom end of the vibration isolator is rotatably connected to the ground.

[0014] The beneficial effects of adopting the above technical solution are as follows: When the vibration isolator is rotated, under the cooperation of the external thread structure and the internal thread structure, stepless height adjustment of the floating slab can be achieved, and the vibration isolator can rotate integrally, ensuring the installation accuracy and shock absorption performance of the shock absorption components inside the vibration isolator and also avoiding excessive wear of the shock absorption components.

[0015] Furthermore, the vibration isolator includes:

[0016] An adjustment table, on the outer side of which the above-mentioned external thread structure is provided;

[0017] A base, which serves as a support foundation and is located below the adjustment table. The base is in plug-in fit with the adjustment table and can rotate synchronously. A plug-in hole is provided at the bottom end of the base. A positioning pin is embedded in the ground. The plug-in hole is plugged and rotatably connected to the limiting head end of the positioning pin;

[0018] A buffer shock absorption component, which is placed between the adjustment table and the base and realizes the distance adjustment between the adjustment table and the base;

[0019] A central bolt rod, which is arranged successively through the base, the buffer shock absorption component, and the adjustment table. A fastening nut is screwed at the end of the central bolt rod.

[0020] The beneficial effects of adopting the above technical solutions are as follows: There is a certain amount of vertical floating between the adjustment table and the base socket for the buffer shock-absorbing component to be compressed. In addition, the socket structure can rotate synchronously to play a role in rotational limiting, enabling the overall synchronous rotation during the adjustment of the vibration isolator, ensuring the installation accuracy and shock-absorbing performance of the buffer shock-absorbing component inside the vibration isolator, and also preventing the buffer shock-absorbing component from wearing out too quickly. The buffer shock-absorbing component, adjustment table, and base of the present utility model are modularly designed. Moreover, by adopting the surface support method, the stiffness support effect in multiple directions is increased, and the longitudinal and transverse (corresponding to the longitudinal and transverse directions of the floating slab) stability of the vibration isolator is improved. The modular design of the present utility model facilitates the later maintenance and replacement of parts. The central bolt rod makes the vibration isolator form a systematic whole, and together with the buffer shock-absorbing component, it can provide a stiffness support effect in multiple directions.

[0021] Further, a protruding anti-rotation square rod with a hole is provided in the middle of the bottom of the adjustment table, and an anti-rotation inner square hole is provided in the middle of the base. The anti-rotation square rod with a hole is slidably inserted up and down in the anti-rotation inner square hole, and the central bolt rod is located in the hole of the anti-rotation square rod with a hole.

[0022] The beneficial effects of adopting the above technical solutions are as follows: By using the insertion and cooperation of the anti-rotation square rod with a hole and the anti-rotation inner square hole, the synchronous rotation of the adjustment table and the base can be realized, and there is a rotational limiting effect. In addition, the vertical (the up and down floating of the floating slab) sinking amplitude limit is determined by the distance between the adjustment table and the base.

[0023] Further, an outer sleeve extends from the bottom of the adjustment table. An anti-rotation inner square structure is provided on the inner side wall of the outer sleeve, and an anti-rotation outer square structure is provided on the top edge of the base. The anti-rotation outer square structure is inserted into the anti-rotation inner square structure.

[0024] The beneficial effects of adopting the above technical solutions are as follows: The cooperation between the anti-rotation inner square structure of the outer sleeve on the adjustment table and the anti-rotation outer square structure on the base has both a rotational limiting effect and a longitudinal and transverse limiting effect, and the vertical distance between the adjustment table and the base is adjusted by using the pressing gap.

[0025] Further, a first staggered tooth structure is provided in a ring shape at the bottom of the adjustment table, and a second staggered tooth structure is provided in a ring shape at the top of the base. The teeth on the first staggered tooth structure are adapted to and engage with the grooves on the second staggered tooth structure and rotate synchronously.

[0026] The beneficial effects of adopting the above technical solutions are as follows: The cooperation between the first staggered tooth structure and the second staggered tooth structure can achieve rotational limiting, and the vertical distance between the adjustment table and the base is adjusted by using the up and down engagement gap.

[0027] Furthermore, a first cylinder structure extends from the bottom of the adjustment platform, an anti-rotation limit groove is provided on the inner side of the first cylinder structure, a second cylinder structure is provided on the top of the base, an anti-rotation limit block is provided on the outer side wall of the second cylinder structure, and the anti-rotation limit block is adapted to be plugged into the anti-rotation limit groove.

[0028] The beneficial effects of adopting the above technical solution are: longitudinal and lateral limiting are achieved by using the plug-in cooperation of the first tube structure and the second tube structure. In addition, rotation limiting is achieved by using the limiting groove and the limiting block, and the vertical distance adjustment of the adjustment platform and the base is achieved by using the depth of the limiting groove.

[0029] Furthermore, a buffer and shock absorbing assembly bearing platform is provided at the bottom of the adjustment platform, and the buffer and shock absorbing assembly bearing platform abuts against the top of the buffer and shock absorbing assembly. A buffer and shock absorbing assembly supporting platform is provided at the top of the base, and the buffer and shock absorbing assembly supporting platform abuts against the bottom of the buffer and shock absorbing assembly.

[0030] The beneficial effects of adopting the above technical solution are: the load-bearing table and the supporting table are specially designed to match the shape of the buffer shock-absorbing component, which is easy to disassemble and assemble, has high stability and good adaptability, and the load-bearing table, the supporting table and the buffer shock-absorbing component are all surface supported, which is better and more stable than the linear support of the traditional steel spring shock absorber.

[0031] Furthermore, the rotating cross-section of the bearing platform of the buffer and shock-absorbing assembly is conical or broken line-shaped, and the rotating cross-section of the support platform of the buffer and shock-absorbing assembly is conical, broken line-shaped or straight line-shaped; the buffer and shock-absorbing assembly is a composite component in which multiple first rubbers and multiple steel plates are alternately stacked, and the rotating body formed by the component has a V-shaped structure, a folded structure and a flat structure, or the buffer and shock-absorbing assembly is a composite rubber spring component in which a spring is embedded in the second rubber.

[0032] The beneficial effects of adopting the above technical solution are: the rubber shock-absorbing component formed by stacking rubber and steel plates has a gradually hardening stiffness characteristic, which is not the traditional single spring linear shock-absorbing characteristic. The specific strength and stiffness requirements can be achieved through the number of stacked layers of rubber and steel plates. In addition, the rotating body formed by stacking rubber and steel plates has a variety of different structural forms that can be adapted to the selection; and the composite rubber spring component also has a gradually hardening stiffness characteristic. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0034] Figure 1 Schematic three-dimensional structure diagram of a floating slab outer sleeve provided by the present utility model.

[0035] Figure 2 For Figure 1 schematic longitudinal sectional structure diagram.

[0036] Figure 3 Schematic structure diagram of a floating slab track system provided by the present utility model.

[0037] Figure 4 Schematic longitudinal sectional structure diagram when the floating slab outer sleeve is assembled with the vibration isolator.

[0038] Figure 5 Schematic diagram of the first embodiment of the cooperation between the adjustment table and the base socket in the vibration isolator provided by the present utility model.

[0039] Figure 6 Schematic diagram of the second embodiment of the cooperation between the adjustment table and the base socket in the vibration isolator provided by the present utility model.

[0040] Figure 7 Schematic diagram of the third embodiment of the cooperation between the adjustment table and the base socket in the vibration isolator provided by the present utility model.

[0041] Figure 8 Schematic diagram of the fourth embodiment of the cooperation between the adjustment table and the base socket in the vibration isolator provided by the present utility model.

[0042] Figure 9 Schematic diagram of the first embodiment of the buffer and shock absorption component in the vibration isolator provided by the present utility model.

[0043] Figure 10 Schematic diagram of the second embodiment of the buffer and shock absorption component in the vibration isolator provided by the present utility model.

[0044] Figure 11 Schematic diagram of the third embodiment of the buffer and shock absorption component in the vibration isolator provided by the present utility model.

[0045] Figure 12 Schematic diagram of the fourth embodiment of the buffer and shock absorption component in the vibration isolator provided by the present utility model. Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0047] See Figure 1 and Figure 2 , an embodiment of the present utility model discloses a floating slab embedded outer sleeve, including: a barrel body 1, the barrel body 1 includes an upper barrel section 11 and a lower barrel section 12, the outer barrel wall of the upper barrel section 11 is a first tapered surface 111 that gradually decreases with height, the outer barrel wall of the lower barrel section 12 is a second tapered surface 121 that gradually increases with height, and the large end of the upper barrel section 11 is integrally connected to the large end of the lower barrel section 12;

[0048] A plurality of circles of annular concave-convex connection structures 112 (which can be threads, protrusions, fins, etc.) for preventing detachment are uniformly fixed along the height direction on the first tapered surface 111; a plurality of barb bosses 122 for preventing detachment are uniformly fixed along the circumferential direction on the second tapered surface 121.

[0049] Among them, the top surface of the barb boss 122 is a third tapered surface 1221 that gradually decreases along the height direction.

[0050] When the outer sleeve is embedded in the concrete floating slab, the annular concave-convex connection structure can increase the contact bonding area between the outer sleeve and the concrete, improve the connection stability, and the first tapered surface can prevent the outer sleeve from being pulled out of the floating slab upward, and the second tapered surface can prevent the outer sleeve from being pulled out of the floating slab downward. In addition, the barb boss can not only effectively prevent the outer sleeve from being pulled out of the concrete floating slab downward by the barbs thereon, but also prevent the outer sleeve from being pulled out of the concrete floating slab upward by the third tapered surface thereon, realizing two-way anti-detachment and greatly improving the stability of the outer sleeve embedded in the concrete floating slab.

[0051] Therefore, under the combined action of the first tapered surface, the second tapered surface, the annular concave-convex connection structure, the barb boss and the third tapered surface, the outer sleeve can be closely fitted with the concrete floating slab, and can jointly ensure that the outer sleeve is fixedly connected to the floating slab and cannot undergo relative translational or rotational motion in the vertical direction (the up and down direction of the Z-axis), the horizontal direction (the horizontal direction of the X-axis), and the longitudinal direction (the horizontal direction of the Y-axis).

[0052] In addition, the material of the barrel body 1 can be a metal material, a rubber material or a nylon material. The present utility model preferably uses a nylon material, which does not rust, is light in weight, convenient for transportation and has a long service life.

[0053] See Figure 3 , a floating slab track system of the present utility model includes: a concrete floating slab 2, a floating slab embedded outer sleeve, and a vibration isolator 3. The barrel body 1 is embedded inside the concrete floating slab 2. An internal thread structure 13 is provided on the inner wall of the barrel body 1. An external thread structure 311 is provided on the outer wall of the top of the vibration isolator 3. The external thread structure 311 is threadedly connected to the internal thread structure 13. The bottom end of the vibration isolator 3 is rotatably connected to the foundation 4.

[0054] Specifically, the vibration isolator 3 includes:

[0055] An adjustment platform 31, the outer side of the adjustment platform 31 is provided with an external thread structure 311;

[0056] The base 32 is located below the adjustment platform 31 as a supporting base. The base 32 and the adjustment platform 31 are plug-in-matched and can rotate synchronously. A plug-in hole 3201 is provided at the bottom of the base 32. A positioning pin 41 is pre-buried on the foundation 4. The plug-in hole 3201 is plugged and rotatably connected with the limit head end 411 of the positioning pin 41;

[0057] The buffer shock absorbing component 33 is disposed between the adjusting platform 31 and the base 32 and realizes the distance adjustment between the adjusting platform 31 and the base 32, thereby realizing the floating effect of the floating plate;

[0058] The central bolt rod 34 passes through the base 32, the buffer and shock absorbing assembly 33, and the adjustment platform 31 in sequence. The end of the central bolt rod 34 is screwed with a fastening nut 35, so that the vibration isolator forms an integral structure.

[0059] As for the connection mode of the adjusting platform 31 and the base 32, the utility model provides the following multiple embodiments:

[0060] See also Figure 5 , the first embodiment of the plug-in combination, a protruding anti-rotation square rod 312 with a hole is provided in the middle of the bottom of the adjusting platform 31, and an anti-rotation inner square hole 321 (an inner hexagonal hole can be used) is provided in the middle of the base 32, and the anti-rotation square rod 312 with a hole (an outer hexagonal rod can be used) is slidably inserted in the anti-rotation inner square hole 321 up and down, and the center bolt rod 34 is located in the hole of the anti-rotation square rod 312 with a hole.

[0061] See also Figure 6 In the second embodiment of the plug-in matching, an outer sleeve 313 extends from the bottom of the adjusting platform 31, and an inner side wall of the outer sleeve 313 is provided with an anti-rotation inner square structure 3131, and an anti-rotation outer square structure 322 is provided on the top edge of the base 32, and the anti-rotation outer square structure 322 is plugged into the anti-rotation inner square structure 3131.

[0062] See also Figure 7 In the third embodiment of the plug-in matching, the bottom ring of the adjustment platform 31 is provided with a first staggered tooth structure 314, and the top ring of the base 32 is provided with a second staggered tooth structure 323. The teeth on the first staggered tooth structure 314 and the grooves on the second staggered tooth structure 323 are adapted to bite and rotate synchronously.

[0063] See also Figure 8, the fourth embodiment of the socket fitting, a first cylinder structure 315 extends from the bottom of the adjustment table 31, an anti-rotation limit groove 3151 is provided on the inner side of the first cylinder structure 315, a second cylinder structure 324 is provided on the top of the base 32, and an anti-rotation limit block 3241 is provided on the outer side wall of the second cylinder structure 324. The anti-rotation limit block 3241 is adaptively inserted and connected with the anti-rotation limit groove 3151.

[0064] In the above embodiment, a buffer shock absorption component bearing platform 316 is provided at the bottom of the adjustment table 31. The buffer shock absorption component bearing platform 316 is in surface contact with the top of the buffer shock absorption component 33. A buffer shock absorption component support platform 325 is provided on the top of the base 32. The buffer shock absorption component support platform 325 is in surface contact with the bottom of the buffer shock absorption component 33.

[0065] The rotating cross-section of the buffer shock absorption component bearing platform 316 is conical or polyline-shaped. The rotating cross-section of the buffer shock absorption component support platform 325 is conical (such as Figure 9 ) or polyline-shaped (such as Figure 10 ) or linear (such as Figure 11 ) ; The buffer shock absorption component 33 is a laminated member in which a plurality of first rubbers 331 and a plurality of steel plates 332 are alternately laminated. The rotating body formed by it has a V-shaped structure (such as Figure 9 ), a folded structure (such as Figure 10 , including an upwardly inclined polyline rubber part and a horizontal rubber part) and a flat structure (such as Figure 11 ), or, the buffer shock absorption component 33 is a composite rubber spring member in which a second rubber 333 is embedded with a spring 334 (such as Figure 12 ).

[0066] It should be noted that when the buffer shock absorption component is linear, since the rubber is completely compressed in the vertical (Z-direction), it has stronger vertical load-bearing capacity, but the disadvantage is that there is no limit in the horizontal direction (Y-direction and X-direction), resulting in a very small horizontal recovery ability; when the buffer shock absorption component is in a V-shaped structure, the vertical and horizontal stiffness are considered through the oblique arrangement of the rubber, but the rubber is not completely compressed in the gravity direction and there is a shear effect, so the vertical load-bearing capacity is limited; when the buffer shock absorption component is in a folded structure, the vertical load-bearing stiffness is mainly provided by the horizontal part of the rubber, and the horizontal stiffness is provided by the obliquely bent rubber part. Compared with the linear type, the horizontal stiffness is effectively improved, and compared with the V-shaped type, the vertical stiffness is improved.

[0067] Therefore, the linear buffer damping component is generally used when a large vertical stiffness is required; the V-shaped component is used when a slightly smaller vertical stiffness is required and a certain shear stiffness needs to be provided, while the zigzag-shaped component is used when both a relatively large vertical stiffness and a certain shear stiffness can be provided. The design ideas of the three damping components mainly involve designing the damping component solutions by combining the vertical stiffness and the shear stiffness to meet different design requirements.

[0068] In addition, the vibration isolator of the present utility model adopts an integral rotation structure, avoiding the problems of rapid wear of internal components and increased costs caused by the split rotation of traditional vibration isolators; moreover, the damping component can select different structural damping according to actual needs to meet different usage requirements; in addition, the bearing table, the support table and the buffer damping component are all surface-supported, and its effect is better and more stable compared with the wire support of traditional steel spring vibration dampers.

[0069] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and reference can be made to the description in the method part for related parts.

[0070] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A floating plate embedded outer sleeve, characterized in that: include: A barrel body (1), the barrel body (1) comprising an upper barrel section (11) and a lower barrel section (12), the outer barrel wall of the upper barrel section (11) being a first conical surface (111) which gradually decreases with height, the outer barrel wall of the lower barrel section (12) being a second conical surface (121) which gradually increases with height, the large end of the upper barrel section (11) being integrally connected with the large end of the lower barrel section (12); The first conical surface (111) is evenly fixed with a plurality of annular concave-convex connection structures (112) for preventing falling off along its height direction; and the second conical surface (121) is evenly fixed with a plurality of undercut bosses (122) for preventing falling off along its circumference direction.

2. The floating plate embedded outer sleeve according to claim 1, characterized in that: The top end surface of the undercut boss (122) is a third conical surface (1221) that gradually decreases in height.

3. A floating plate track system, characterized in that: include: A concrete floating plate (2), a floating plate embedded outer sleeve as claimed in any one of claims 1 to 2, and a vibration isolator (3), wherein the sleeve body (1) is embedded in the concrete floating plate (2), the inner wall of the sleeve body (1) has an internal thread structure (13), the top outer wall of the vibration isolator (3) has an external thread structure (311), the external thread structure (311) is threadedly connected to the internal thread structure (13), and the bottom end of the vibration isolator (3) is rotatably connected to the foundation (4).

4. A floating plate track system according to claim 3, characterized in that: The vibration isolator (3) comprises: An adjustment platform (31), wherein the outer side of the adjustment platform (31) is provided with the external thread structure (311); A base (32), the base (32) being located below the adjustment platform (31) as a supporting base, the base (32) and the adjustment platform (31) being plug-in-matched and being able to rotate synchronously, a plug-in hole (3201) being provided at the bottom end of the base (32), a positioning pin (41) being pre-buried on the foundation (4), the plug-in hole (3201) being plug-in-connected and rotationally connected to a limiting head end (411) of the positioning pin (41); A buffer shock absorbing component (33), wherein the buffer shock absorbing component (33) is disposed between the adjustment platform (31) and the base (32) and realizes the distance adjustment between the adjustment platform (31) and the base (32); A central bolt rod (34) is sequentially passed through the base (32), the buffer shock absorbing assembly (33), and the adjustment platform (31), and a fastening nut (35) is screwed on the end of the central bolt rod (34).

5. A floating plate track system according to claim 4, characterized in that: An outwardly protruding anti-rotation square rod (312) with a hole is provided in the middle of the bottom of the adjustment platform (31), an anti-rotation inner square hole (321) is provided in the middle of the base (32), the anti-rotation square rod (312) with a hole is slidably inserted in the anti-rotation inner square hole (321) up and down, and the central bolt rod (34) is located in the hole of the anti-rotation square rod (312) with a hole.

6. A floating slab track system according to claim 5, characterized in that: An outer sleeve (313) extends from the bottom of the adjustment platform (31), an inner side wall of the outer sleeve (313) is provided with an anti-rotation inner square structure (3131), and an anti-rotation outer square structure (322) is provided at the top edge of the base (32), and the anti-rotation outer square structure (322) is plugged into the anti-rotation inner square structure (3131).

7. A floating slab track system according to claim 4, characterized in that: The bottom ring of the adjustment platform (31) is provided with a first staggered tooth structure (314), and the top ring of the base (32) is provided with a second staggered tooth structure (323); the teeth on the first staggered tooth structure (314) and the grooves on the second staggered tooth structure (323) are adapted to engage with each other and rotate synchronously.

8. A floating slab track system according to claim 4, characterized in that: A first cylinder structure (315) extends from the bottom of the adjustment platform (31), an anti-rotation limit groove (3151) is provided on the inner side of the first cylinder structure (315), a second cylinder structure (324) is provided on the top of the base (32), an anti-rotation limit block (3241) is provided on the outer side wall of the second cylinder structure (324), and the anti-rotation limit block (3241) is adapted to be plug-connected with the anti-rotation limit groove (3151).

9. A floating slab track system according to any one of claims 4 to 8, characterized in that: A buffer and shock absorbing component bearing platform (316) is provided at the bottom of the adjustment platform (31), and the buffer and shock absorbing component bearing platform (316) abuts against the top of the buffer and shock absorbing component (33); a buffer and shock absorbing component supporting platform (325) is provided at the top of the base (32), and the buffer and shock absorbing component supporting platform (325) abuts against the bottom of the buffer and shock absorbing component (33).

10. A floating slab track system according to claim 9, characterized in that: The revolving cross section of the buffer and shock absorbing component bearing platform (316) is conical or zigzag, and the revolving cross section of the buffer and shock absorbing component support platform (325) is conical, zigzag or straight; the buffer and shock absorbing component (33) is a composite component in which a plurality of first rubbers (331) and a plurality of steel plates (332) are alternately stacked, and the revolving body formed by the component has a V-shaped structure, a folded structure and a flat structure, or the buffer and shock absorbing component (33) is a composite rubber spring component in which a spring (334) is embedded in a second rubber (333).

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