WO2022166343A1

WO2022166343A1 - Plastic sleeper and plastic sleeper assembly

Info

Publication number: WO2022166343A1
Application number: PCT/CN2021/134028
Authority: WO
Inventors: 李武军
Original assignee: 李武军
Priority date: 2021-02-03
Filing date: 2021-11-29
Publication date: 2022-08-11
Also published as: CN216193682U

Abstract

A plastic sleeper and a plastic sleeper assembly, which relate to the technical field of construction engineering. The plastic sleeper comprises: a first sleeper block (1), wherein a surface of the first sleeper block (1) is provided with several first protrusions (2), and a first groove (3) is disposed between the adjacent first protrusions (2); a second sleeper block (4), wherein a surface of the second sleeper block (4) is provided with several second protrusions (5), a second groove (6) is disposed between the adjacent second protrusions (5), the first protrusions (2) of the first sleeper block (1) are correspondingly embedded in the second grooves (6) of the second sleeper block (4), and the second protrusions (5) of the second sleeper block (4) are correspondingly embedded in the first grooves (3) of the first sleeper block (1); and fasteners (7), wherein the first sleeper block (1) and the second sleeper block (4) are fixedly locked by means of the fasteners (7). The plastic sleeper not only has the effect of being solid, but can also achieve the same bearing effect as a solid sleeper, so that a structure involving integral injection molding of a traditional plastic sleeper is avoided.

Description

A plastic sleeper and a plastic sleeper assembly

technical field

The utility model relates to the technical field of construction engineering, in particular to a plastic sleeper and a plastic sleeper assembly.

Background technique

Plastic sleeper products are used in the field of building logistics infrastructure, specifically for building railways, shelving goods, etc. At present, the plastic sleepers commonly used in the market are produced by the integrated molding technology of extrusion or hot pressing. The current integrated structure has problems such as high production cost and low production efficiency.

Utility model content

1. Technical problems to be solved by the utility model

Aiming at the technical problems of high production cost and low production efficiency of integrally formed plastic sleepers, the utility model provides a plastic sleeper and a plastic sleeper assembly, which can save the production cost and reduce the overall weight on the premise of ensuring the structural strength of the sleeper. , improve the production and installation efficiency.

2. Technical solutions

In order to solve the above-mentioned problems, the technical scheme that the utility model provides is:

A plastic sleeper, comprising: a first sleeper block, a plurality of first protrusions are arranged on the surface of the first sleeper block, and a first groove is provided between the adjacent first protrusions; a second sleeper block, the first sleeper block A plurality of second protrusions are arranged on the surface of the block, and second grooves are arranged between adjacent second protrusions; the first protrusions of the first sleeper block are correspondingly embedded in the second grooves of the second sleeper block , the second protrusion of the second sleeper block is correspondingly embedded in the first groove of the first sleeper block; the fastener, the first sleeper block and the second sleeper block are locked and fixed by the fastener.

In the present invention, the first protrusion and the first groove of the first sleeper block and the second groove and the second protrusion of the second sleeper block are clamped/embedded to make the first block The sleeper block and the second sleeper block form an integral sleeper, and the first sleeper block and the second sleeper block are locked and fixed with fasteners, so that the plastic sleeper has a solid effect and can achieve the same effect as a solid sleeper. The load-bearing effect of the traditional plastic sleeper avoids the structure of integral injection molding of traditional plastic sleepers. It can be seen from this that the present embodiment can not only save the production cost, but also reduce the overall weight, and improve the production and installation efficiency under the premise of ensuring the structural strength of the sleeper.

Optionally, there are a plurality of fasteners, the first sleeper block is provided with a plurality of first through holes, the second sleeper block is correspondingly provided with a plurality of second through holes, and the fasteners pass through the first through holes in sequence. and the second through hole to lock and fix the first sleeper block and the second sleeper block, or the fasteners pass through the second through hole and the first through hole in turn to lock and fix the first sleeper block and the second sleeper block.

Optionally, a plurality of plastic plugs are also included, and the plastic plugs cover and seal both ends of the fastener.

Optionally, two first handle ropes are also included, and both ends of the first handle ropes are clamped to the joint of the first sleeper block and the second sleeper block.

Optionally, limiting platforms are protruded on both sides of the surfaces of the first sleeper block and the second sleeper block that are away from the protrusions.

Optionally, both ends of the first sleeper block and the second sleeper block are provided with accommodating spaces, and finger grooves are provided in the accommodating spaces.

Optionally, first anti-slip concave-convex patterns are provided on the surfaces of the first sleeper block and the second sleeper block that are far away from the protrusions.

The utility model also provides a plastic sleeper assembly, which comprises the above-mentioned plastic sleeper and a plastic backing board, and the plastic sleeper is placed on the plastic backing board.

Optionally, the plastic backing plate includes: a bottom plate, a plurality of third protrusions are arranged on the surface of the bottom plate, and third grooves are arranged between adjacent third protrusions; There are several fourth protrusions, fourth grooves are arranged between adjacent fourth protrusions, the third protrusions are correspondingly embedded in the fourth grooves; the fourth protrusions are correspondingly embedded in the third grooves ; A number of screws, the screws are used to connect the bottom plate and the bearing plate up and down; the plastic sleepers are placed on the surface of the bearing plate far from the bottom plate.

Optionally, two second handle ropes are also included, and both ends of the second handle ropes are clamped at the butt joints between the bottom plate and the pressure-bearing plate.

Optionally, a plastic cover is also included, and the plastic cover seals over the screw positions.

Optionally, a surface of the pressure bearing plate away from the second protrusion is provided with a second anti-slip convex and concave pattern, and the second anti-slip convex and concave pattern is correspondingly matched with the first anti-slip concave and convex pattern.

Optionally, the pressure bearing plate has a fifth groove, the second anti-skid convex and concave pattern is arranged on the bottom surface of the fifth groove, and the plastic sleeper is placed in the fifth groove.

Optionally, the plastic backing plate includes a pressure-bearing plate and a bottom plate, the bottom plate is provided with an installation groove adapted to the pressure-bearing plate, the bottom edge of the groove of the installation groove is provided with a number of clip slots, and the bottom edge of the pressure plate is provided with a number of clips. The feet are engaged with the card slot, and the bottom surface of the pressure-bearing plate and/or the bottom of the installation slot is provided with an ultrasonic wire for ultrasonic welding.

The installation groove on the bottom plate has a positioning function for the bearing plate, which is convenient for the installation of the bearing plate. During installation, the clips on the pressure-bearing plate are correspondingly snapped into the grooves of the bottom plate, and after the pressure-bearing plate and the bottom plate are firmly connected, the convexity is set on the bottom surface of the pressure-bearing plate by using high-frequency vibration ultrasonic waves. And/or the ultrasonic wire at the bottom of the installation groove melts rapidly. Under pressure, the bottom surface of the bearing plate and the groove bottom of the installation groove are fused together by the molten ultrasonic wire. When the ultrasonic wave stops working, let the pressure continue. For a few seconds, it is solidified and formed, so that a strong molecular chain is formed, and the two bonding surfaces of the bearing plate and the bottom plate are completely and firmly attached, so as to achieve the same load-bearing capacity as the solid plate.

Specifically, the number of the pressure-bearing plates and the installation grooves may be four, which are arranged in a field shape on the bottom plate.

Wherein, the ultrasonic wire may be provided on the pressure-bearing plate or the bottom plate, or both the pressure-bearing plate and the bottom plate may be provided with an ultrasonic wire, both of which can realize ultrasonic welding between the pressure-bearing plate and the bottom plate. The ultrasonic wire can be annular, the annular ultrasonic wire is evenly distributed, and the adhesive structure formed after melting is more uniform.

Optionally, the clamping foot includes a clamping script body, a clamping base and a reinforcing rib arranged on the clamping script body, and the clamping base and the reinforcing rib are respectively arranged on opposite surfaces of the clamping script body.

The card script body is a plate-like structure, so that the plastic card script body has a certain elastic deformation ability. The card script body is provided with a card table, and a corresponding groove can be set in the card groove to match the card table. A hook structure is formed in the card slot, and the clamping structure is more stable. A reinforcing rib is arranged on the side of the clip body opposite to the clip table, which can enhance the structural strength of the clip foot.

Optionally, both the clamping table and the reinforcing rib are provided with lead-in slopes for assisting the clamping feet to be clamped into the clamping grooves, so that the clamping feet can be smoothly clamped into the clamping grooves, thereby improving assembly efficiency and reducing labor intensity of workers.

Optionally, the bottom surface of the pressure-bearing plate is further provided with a plurality of positioning posts, and the groove bottom of the installation groove is provided with a plurality of positioning slots adapted to the positioning posts. The positioning posts are inserted into the positioning grooves to further increase the contact area between the pressure-bearing plate and the bottom plate, so as to ensure that the assembly structure between the pressure-bearing plate and the bottom plate does not shift, so as to facilitate subsequent ultrasonic welding operations.

Optionally, the pressure-bearing plate has a square structure, and four corners of the pressure-bearing plate are provided with chamfers. The sharp corners are easy to be damaged and the problem of scratching the operator occurs. The design of the chamfer makes it not easy to be cut during assembly, and at the same time increases the aesthetics.

Optionally, the surface of the pressure bearing plate is provided with second anti-skid convex and concave patterns. A sleeper is placed above the backing plate, and the surface of the pressure-bearing plate is provided with a second anti-skid convex and concave pattern corresponding to the concave-convex structure on the surface of the sleeper, that is, the depression of the pressure-bearing plate corresponds to the protrusion on the sleeper. The board can be effectively attached to the sleeper, and at the same time, it can effectively prevent the sleeper and the backing board from sliding, and increase the stability and firmness of the sleeper on the backing board. In practical application, the anti-skid convex and concave pattern on the bearing plate and the concave and convex structure on the sleeper can be diamond patterns.

Optionally, at least one second handle rope for carrying is provided on the side of the bottom plate. The second handle rope can be a second handle rope with a rope-like structure. After the second handle rope passes through the prefabricated hole on the bottom plate, the two ends of the second handle rope are knotted to form knots, and the second handle rope is tied under pressure. Before the board is fixed and assembled, it is clipped into the prefabricated groove of the base plate through a rope knot.

3. Beneficial effects

Compared with the prior art, the technical scheme provided by the present utility model has the following beneficial effects:

(1) The plastic sleepers proposed in the embodiments of the present application have a simple structure. By snapping/embedding, the first sleeper block and the second sleeper block form an integral sleeper, and the first sleeper block and the second sleeper block are locked and fixed with fasteners, so that the plastic sleeper has a solid shape. At the same time, it can achieve the same load-bearing effect as the solid sleeper, avoiding the structure of the traditional plastic sleeper integrated injection molding. It can be seen from this that the present embodiment can not only save the production cost, but also reduce the overall weight, and improve the production and installation efficiency under the premise of ensuring the structural strength of the sleeper.

(2) For the plastic sleepers proposed in the embodiments of the present application, the first sleeper block and the second sleeper block that are nested together are locked and fixed by fasteners, which can effectively avoid the loosening problem caused by the welding method and effectively ensure the first sleeper block and the second sleeper block. Strong stability between a sleeper block and a second sleeper block.

(3) The plastic sleepers proposed in the embodiments of the present application are provided with plastic plugs, which can prevent the fasteners from being exposed and rusted.

(4) The plastic sleeper assembly proposed in the embodiment of the present application, the plastic sleeper assembly provided can save the production cost and improve the production efficiency while ensuring the structural strength.

(5) The plastic sleeper assembly proposed in the embodiment of the present application is to connect the third protrusion and the third groove on the surface of the bottom plate and the fourth groove and the fourth protrusion of the pressure-bearing plate. The bottom plate and the pressure-bearing plate form an integral plastic backing plate, and the bottom plate and the pressure-bearing plate are fixed with screws, so that the plastic backing plate has a solid effect and can achieve the same load-bearing as the solid backing plate. It avoids the structure of integral injection molding of the traditional plastic backing plate. On the premise of ensuring the structural strength of the plastic backing plate, the structure can effectively save the production cost, reduce the overall weight, and improve the production and installation efficiency.

(6) In the plastic sleeper assembly proposed in the embodiment of the present application, after the backing plate is clamped and fastened correspondingly in the groove of the bottom plate through the clamping feet on the pressure-bearing plate, the outer protrusion is arranged on the supporting plate by the ultrasonic wave of high frequency vibration. The ultrasonic wire on the bottom surface of the pressure plate and/or the groove bottom of the installation groove is rapidly melted, and the bottom surface of the pressure plate and the groove bottom of the installation groove are fused together by the molten ultrasonic wire. After the molten ultrasonic wire is solidified and formed, a solid The molecular chain makes the two bonding surfaces of the pressure-bearing plate and the bottom plate completely and firmly attached, thereby ensuring its load-bearing capacity.

Description of drawings

FIG. 1 is a structural perspective view of a plastic sleeper according to an embodiment of the present invention.

FIG. 2 is an exploded view of the structure of a plastic sleeper according to an embodiment of the present invention.

3 is a three-dimensional schematic diagram of a plurality of plastic sleepers being stacked according to an embodiment of the present invention.

4 is a structural exploded view of the front side of a plastic backing plate in a plastic sleeper assembly according to an embodiment of the present invention.

5 is an exploded view of the structure of the back of a plastic backing plate in a plastic sleeper assembly according to an embodiment of the present invention.

6 is a schematic structural diagram of a plastic sleeper assembly according to an embodiment of the present invention;

7 is a schematic diagram of another plastic backing plate according to an embodiment of the present invention;

8 is an exploded view of another plastic backing plate according to an embodiment of the present invention;

9 is a schematic diagram of the bottom surface of another pressure-bearing plate according to an embodiment of the present invention;

10 is a schematic diagram of another plastic sleeper assembly according to an embodiment of the present invention.

Detailed ways

In order to further understand the content of the present utility model, the present utility model is described in detail with reference to the accompanying drawings and embodiments.

The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, rather than limit the utility model. In addition, it should be noted that, for the convenience of description, only the parts related to the utility model are shown in the drawings. The terms "first" and "second" mentioned in the present utility model are provided for the convenience of describing the technical solutions of the present utility model, and have no specific limiting effect. . It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations. Multiple technical solutions in the same embodiment, and between multiple technical solutions of different embodiments, can be arranged and combined to form new technical solutions without contradiction or conflict, all within the scope of protection of the present invention.

Example 1

1-2, this embodiment provides a plastic sleeper, comprising: a first sleeper block 1, a surface of the first sleeper block 1 is provided with a plurality of first protrusions 2, between adjacent first protrusions 2 A first groove 3 is provided; a second sleeper block 4, a plurality of second protrusions 5 are provided on the surface of the first sleeper block 1, and a second groove 6 is provided between the adjacent second protrusions 5; The first protrusion 2 of the sleeper block 1 is correspondingly embedded in the second groove 6 of the second sleeper block 4 , and the second protrusion 5 of the second sleeper block 4 is correspondingly embedded in the first concave of the first sleeper block 1 . In the groove 3; the fastener 7, the first sleeper block 1 and the second sleeper block 4 are locked and fixed by the fastener 7.

In this embodiment, the first protrusion 2 and the first groove 3 of the first sleeper block 1 and the second groove 6 and the second protrusion 5 of the second sleeper block 4 are snap-connected/ Inlay, so that the first sleeper block 1 and the second sleeper block 4 form an integral sleeper, and the first sleeper block 1 and the second sleeper block 4 are locked and fixed with the fastener 7, so that the plastic sleeper has Solid effect, and at the same time can achieve the same load-bearing effect as solid sleepers, avoiding the structure of traditional plastic sleepers integrated injection molding. It can be seen from this that the present embodiment can not only save the production cost, but also reduce the overall weight, and improve the production and installation efficiency under the premise of ensuring the structural strength of the sleeper.

Example 2

1-2, compared with the technical solution of Embodiment 1, the plastic sleeper of this embodiment can be improved as follows: there are multiple fasteners 7, and the first sleeper block 1 is provided with multiple first through holes , the second sleeper block 4 is correspondingly provided with a plurality of second through holes, and the fasteners 7 pass through the first through holes and the second through holes in turn to make the first sleeper block 1 and the second sleeper block 4 locked and fixed or tightened The fasteners 7 pass through the second through hole and the first through hole in sequence to lock and fix the first sleeper block 1 and the second sleeper block 4 .

Since it is a plastic sleeper, if the first sleeper block 1 and the second sleeper block 4 are nested together to form the whole sleeper by welding, the plastic sleeper can easily be used in the first sleeper block 1 and the second sleeper block 4. The welding position is prone to loosening, which affects the firmness of the fixation between the first sleeper block 1 and the second sleeper block 4 . In this embodiment, the first sleeper block 1 and the second sleeper block 4 that are nested together are locked and fixed by the fasteners 7, which can effectively avoid the loosening problem caused by the welding method, and effectively ensure that the first sleeper block 1 and the second sleeper block 4 are locked together. Strong stability between the second sleeper blocks 4 .

In practice, the fastener 7 is a screw, and the screw and the nut cooperate to lock and fix the nested first sleeper block 1 and the second sleeper block 4 .

Example 3

1-2, compared with the technical solution of the second embodiment, the plastic sleeper of this embodiment can be improved as follows: it also includes a plurality of plastic plugs 8, and the plastic plugs 8 cover and seal two parts of the fastener 7. Ends. Setting the plastic plug 8 can prevent the fasteners 7 from being exposed and rusted. The plastic plugs 8 can be square or cylindrical plastic plugs. Among the plurality of plastic plugs, some of the plastic plugs 8 are square plastic plugs, and the other part of the plastic plugs 8 are cylindrical plastic plugs.

Example 4

1-2, compared with the technical solution of Embodiment 1, the plastic sleeper of this embodiment can be improved as follows: it also includes two first handle ropes 23, and both ends of the first handle rope 23 are clamped together At the joint of the first sleeper block 1 and the second sleeper block 4. Set the handle rope, easy to carry plastic sleepers. In practical application, the two ends of the two first handle ropes 23 are knotted into knots, and when the first sleeper block 1 and the second sleeper block 4 are assembled, they are stuck on the first sleeper block 1 or the second sleeper block through the knot. Sleeper blocks 4 prefabricated holes.

Example 5

As shown in FIG. 2 , compared with the technical solution of Embodiment 1, the plastic sleeper of the present embodiment can be improved as follows: the surfaces of the first sleeper block 1 and the second sleeper block 4 that are far away from the protrusions are protruded with a limit on both sides. Station 26. The limiting platform 26 is provided to limit the mutual limiting of the plurality of plastic sleepers when they are stacked.

Example 6

As shown in FIG. 2 , compared with the technical solution of Embodiment 1, the plastic sleeper of this embodiment can be improved as follows: both ends of the first sleeper block 1 and the second sleeper block 4 are provided with accommodation spaces 9 for accommodating A finger groove 22 is provided in the space 9 . The arrangement can effectively prevent the hand from slipping when transporting the plastic sleeper.

Example 7

As shown in FIG. 1 , compared with any of the technical solutions in Embodiments 1-6, the plastic sleeper of this embodiment can be improved as follows: the surfaces of the first sleeper block 1 and the second sleeper block 4 that are far away from the bulge are all A first anti-slip concave-convex pattern 10 is provided. This setting can prevent slipping when the plastic sleepers are stacked between the plastic sleepers.

Example 8

As shown in FIG. 6 , this embodiment provides a plastic sleeper assembly, including the plastic sleeper and the plastic backing plate 11 according to any one of the technical solutions of Embodiments 1-7, and the plastic sleeper is placed on the plastic backing plate 11 . The provided plastic sleeper assembly can save the production cost and improve the production efficiency while ensuring the structural strength.

Example 9

As shown in FIGS. 3-5 , the plastic sleeper assembly of this embodiment, compared with the technical solution of Embodiment 8, can be improved as follows: the plastic backing plate 11 includes: a bottom plate 12 , and a surface of the bottom plate 12 is provided with a number of third The protrusions 13 are provided with third grooves 14 between adjacent third protrusions 13; the pressure-bearing plate 15 is provided with a number of fourth protrusions 16 on the surface of the pressure-bearing plate 15, and the adjacent fourth protrusions 16 There are fourth grooves 17 between them, and the third protrusions 13 are correspondingly embedded in the fourth grooves 17; the fourth protrusions 16 are correspondingly embedded in the third grooves 14; a plurality of screws 18 are used for the screws 18 The bottom plate 12 and the bearing plate 15 are fixedly connected up and down; the plastic sleepers are placed on the surface of the bearing plate 15 away from the bottom plate 12 . By connecting/embedding the third protrusion 13 and the third groove 14 on the surface of the bottom plate 12 and the fourth groove 17 and the fourth protrusion 16 of the pressure plate 15 correspondingly to each other, the bottom plate 12 and the The pressure-bearing plate 15 forms an integral plastic backing plate 11, and the bottom plate 12 and the pressure-bearing plate 15 are fixed by screws 18, so that the plastic backing plate 11 has a solid effect and can achieve the same load bearing as the solid backing plate. It avoids the structure of integral injection molding of the traditional plastic backing plate. On the premise of ensuring the structural strength of the plastic backing plate 11, the structure can effectively save the production cost, reduce the overall weight, and improve the production and installation efficiency.

Example 10

As shown in FIGS. 3-5 , the plastic sleeper assembly of this embodiment, compared with the technical solution of Embodiment 9, can be improved as follows: it further includes two second handle ropes 24 , two ends of the second handle rope 24 It is clamped at the butt joint between the bottom plate 12 and the pressure-bearing plate 15 . This arrangement is convenient for transporting the plastic backing plate 11 . In practice, the second handle rope 24 is clamped and fixed in the prefabricated hole of the bottom plate 12 through a knot before assembly.

Example 11

As shown in FIGS. 3-5 , the plastic sleeper assembly of this embodiment, compared with the technical solution of Embodiment 9, can be improved as follows: it also includes a plastic cover 25 , and the plastic cover 25 seals and covers the position of the screw 18 . This arrangement prevents the screws 18 from being exposed and rusted.

Example 12

As shown in FIGS. 3-5 , the plastic sleeper assembly of this embodiment, compared with the technical solution of Embodiment 9, can be improved as follows: the surface of the pressure bearing plate 15 away from the second protrusion 5 is provided with a second anti-skid convex and concave pattern 19. The second anti-slip concave-convex pattern 19 is matched with the first anti-slip concave-convex pattern 10 correspondingly. This arrangement can effectively fit the plastic sleeper 11 with the plastic sleeper, and at the same time, can effectively prevent the plastic sleeper from sliding on the plastic sleeper 11 , and increase the stability and firmness of the plastic sleeper on the plastic sleeper 11 . In practical application, the second anti-slip concave-convex pattern 19 and the first anti-slip concave-convex pattern 10 are diamond patterns.

Example 13

As shown in Figs. 3-5, the plastic sleeper assembly of this embodiment, compared with the technical solution of Embodiment 12, can be improved as follows: the pressure bearing plate 15 has a fifth groove 20, and the second anti-skid convex and concave pattern 19 is provided on the first On the bottom surface of the five grooves 20 , the plastic sleepers are placed in the fifth groove 20 . This arrangement is convenient for the plastic sleeper to be fixed on the plastic backing plate 11 .

Example 14

As shown in FIG. 10 , this embodiment provides another plastic sleeper assembly, including the plastic sleeper of any one of the technical solutions of Embodiments 1-7 and the plastic backing plate 27 of a different structure from that of Embodiments 8-13. The plastic sleeper is placed on the plastic backing plate 27. The provided plastic sleeper assembly has a split structure, has excellent load-bearing capacity, and can save production costs on the premise of ensuring the overall structural strength.

Example 15

As shown in Figures 7-9, the plastic sleeper assembly of this embodiment, compared with the technical solution of Embodiment 14, can be improved as follows:

The plastic backing plate 27 includes a pressure bearing plate 28 and a bottom plate 29 . The bottom plate 29 is provided with an installation groove 42 which is matched with the pressure-bearing plate 28 , the bottom edge of the installation groove 42 is provided with twelve clamping grooves 43 corresponding to the clamping feet 32 , and the edge of the bottom surface 36 of the pressure-bearing plate is provided with twelve clamping grooves 43 . There are 1 clamping feet 32 , and the twelve clamping feet 32 are evenly distributed on the four sides, and the clamping feet 32 are inserted into the clamping slots 43 in a one-to-one correspondence for clamping engagement. The number of the pressure-bearing plates 28 and the installation grooves 42 may be four, which are arranged in a field shape on the bottom plate 29 .

The bottom surface 36 of the pressure-bearing plate is provided with an ultrasonic wire 33 made of plastic material for ultrasonic welding. After the clips 32 of the pressure-bearing plate 28 are stuck into the grooves 43 of the bottom plate 29, the ultrasonic wire 33 is rapidly melted by high-frequency vibration ultrasonic waves. , the bottom surface 36 of the pressure-bearing plate and the groove bottom of the installation groove 42 are fused together by the molten ultrasonic wire 33. When the ultrasonic wave stops acting, let the pressure continue for a few seconds until the solidification and molding firmly solidify the pressure-bearing plate 28 and the bottom plate 29. Welded together to achieve the same load-bearing capacity as a solid board.

Example 16

As shown in Figures 7-9, the plastic sleeper assembly of this embodiment, compared with the technical solution of Embodiment 15, can be improved as follows:

The clamping leg 32 includes a plate-shaped clamping script body 38 , a clamping base 39 and a reinforcing rib 40 arranged on the clamping script body 38 . Wherein, the clamping table 39 and the reinforcing rib 40 are provided with an introduction slope 41 for assisting the clamping feet 32 to be inserted into the clamping grooves 43, so that the clamping feet 32 can be smoothly inserted into the clamping grooves 43, thereby improving the assembly efficiency and reducing the labor intensity of workers. .

Example 17

As shown in Figures 7-9, the plastic sleeper assembly of this embodiment, compared with the technical solutions of Embodiment 15 and Embodiment 16, can be improved as follows:

The bottom surface 36 of the pressure-bearing plate is also provided with four positioning posts 34, and the bottom of the mounting slot 42 is provided with four positioning slots 44 that are adapted to the positioning posts 34, and the positioning posts 34 are inserted into the positioning slots 44 to further increase the bearing pressure The contact area between the plate 28 and the bottom plate 29 ensures that the assembly structure between the pressure-bearing plate 28 and the bottom plate 29 will not be displaced, so as to facilitate the subsequent ultrasonic welding operation.

Example 18

As shown in Figures 7-9, the plastic sleeper assembly of this embodiment, compared with the technical solutions of Embodiments 15-17, can be improved as follows:

The pressure-bearing plate 28 has a square structure, and the four corners of the pressure-bearing plate 28 are provided with chamfers 31, so that it is not easy to be cut during assembly, and at the same time, the aesthetics is enhanced.

Example 19

As shown in Figures 7-9, the plastic sleeper assembly of this embodiment, compared with the technical solutions of Embodiments 15-18, can be improved as follows:

The surface 37 of the pressure-bearing plate is provided with a second anti-skid convex and concave pattern 35 that is adapted to the concave-convex structure on the sleeper, so that when the sleeper is placed on the backing plate, the pressure-bearing plate 28 can effectively fit with the sleeper, and can effectively prevent the sleeper. The sleeper and the backing board slide to increase the stability and firmness of the sleeper on the backing board.

Example 20

As shown in Figures 7-9, the plastic sleeper assembly of this embodiment, compared with the technical solutions of Embodiments 15-19, can be improved as follows:

The side of the bottom plate 29 is provided with a rope-shaped second handle rope 30 for carrying. After the second handle rope 30 passes through the prefabricated hole on the bottom plate 29 , the two ends of the second handle rope 30 are knotted to form knots, and before the pressure-bearing plate 28 is fixed and assembled, the two ends of the second handle rope 30 are clipped and fixed on the bottom plate by means of knots. 29 in prefabricated slots.

The present invention and its embodiments have been schematically described above, and the description is not restrictive, and what is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it, without departing from the purpose of creation of the present utility model, without creative design of the structural mode and the embodiment similar to the technical solution, all should belong to the present utility model. protected range.

Claims

A plastic sleeper, characterized in that it comprises:

a first sleeper block, a plurality of first protrusions are provided on the surface of the first sleeper block, and a first groove is provided between adjacent first protrusions;

the second sleeper block, a plurality of second protrusions are provided on the surface of the first sleeper block, and a second groove is provided between the adjacent second protrusions;

The first protrusion of the first sleeper block is correspondingly embedded in the second groove of the second sleeper block, and the second protrusion of the second sleeper block is correspondingly embedded in the first groove of the first sleeper block Inside;

Fasteners, the first sleeper block and the second sleeper block are locked and fixed by the fasteners.
The plastic sleeper according to claim 1, characterized in that there are a plurality of fasteners, a plurality of first through holes are formed on the first sleeper block, and a corresponding number of first through holes are formed on the second sleeper block. There are a plurality of second through holes, and the fasteners pass through the first through holes and the second through holes in sequence to lock and fix the first sleeper block and the second sleeper block, or the fasteners pass through the second through holes in sequence. The hole and the first through hole make the first sleeper block and the second sleeper block locked and fixed.
The plastic sleeper according to claim 2, further comprising a plurality of plastic plugs, and the plastic plugs are covered and sealed on both ends of the fastener.
The plastic sleeper according to claim 1, further comprising two first handle ropes, and two ends of the first handle ropes are clamped to the first sleeper block and the second sleeper block to fit together place.
The plastic sleeper according to claim 1, wherein limit platforms are protruded on both sides of the surface of the first sleeper block and the second sleeper block that are far away from the protrusions.
The plastic sleeper according to claim 1, wherein both ends of the first sleeper block and the second sleeper block are provided with accommodating spaces, and finger grooves are provided in the accommodating spaces.
The plastic sleeper according to any one of claims 1 to 6, wherein first anti-slip concave-convex patterns are provided on the surfaces of the first sleeper block and the second sleeper block that are far away from the protrusions.
A plastic sleeper assembly, characterized in that it comprises the plastic sleeper of claim 7 and a plastic backing board, wherein the plastic sleeper is placed on the plastic backing board.
The plastic sleeper assembly according to claim 8, wherein the plastic backing plate comprises: a bottom plate, a surface of the bottom plate is provided with a plurality of third protrusions, and a third protrusion is provided between adjacent third protrusions Three grooves; a pressure-bearing plate, a plurality of fourth protrusions are arranged on the surface of the pressure-bearing plate, fourth grooves are arranged between adjacent fourth protrusions, and the third protrusions are correspondingly embedded in In the fourth groove; the fourth protrusion is correspondingly embedded in the third groove; a plurality of screws, the screws are used to connect the bottom plate and the bearing plate up and down; the plastic sleepers are placed at a distance from the bottom plate. on the surface of the bearing plate.
The plastic sleeper assembly according to claim 9, further comprising two second handle ropes, and two ends of the second handle ropes are clamped at the butt joints between the bottom plate and the pressure-bearing plate.
The plastic sleeper assembly according to claim 9, further comprising a plastic cover, the plastic cover sealingly covers the screw position.
The plastic sleeper assembly according to claim 9, wherein a surface of the pressure-bearing plate away from the second protrusion is provided with a second anti-skid convex and concave pattern, and the second anti-slip convex and concave pattern is consistent with the first anti-skid convex and concave pattern. Anti-skid bumps correspond to fit.
The plastic sleeper assembly according to claim 12, wherein the pressure-bearing plate has a fifth groove, the second anti-skid convex and concave pattern is provided on the bottom surface of the fifth groove, and the plastic sleeper is placed on the bottom surface of the fifth groove. in the fifth groove.
The plastic sleeper assembly according to claim 8, wherein the plastic backing plate comprises a pressure-bearing plate and a bottom plate, the bottom plate is provided with a mounting groove adapted to the pressure-bearing plate, and the mounting groove is The bottom edge of the groove is provided with a number of clamping grooves, the bottom edge of the pressure-bearing plate is provided with a number of clamping feet, the clamping feet are engaged with the clamping grooves, and the bottom surface of the pressure-bearing plate and/or the installation groove The bottom of the groove is provided with an ultrasonic wire for ultrasonic welding.
The plastic sleeper assembly according to claim 14, wherein the clamping foot comprises a clamping script body, a clamping platform and a reinforcing rib arranged on the clamping script body, and the clamping platform and the reinforcing rib are respectively provided with on the opposite side of the card body.
The plastic sleeper assembly according to claim 15, wherein the clamping table and the reinforcing rib are provided with an introduction slope for assisting the clamping feet to be clamped into the clamping grooves.
The plastic sleeper assembly according to claim 14, wherein the bottom surface of the pressure bearing plate is further provided with a plurality of positioning posts, and the bottom of the installation groove is provided with a plurality of positioning slots adapted to the positioning posts .
The plastic sleeper assembly according to claim 14, wherein the pressure-bearing plate has a square structure, and four corners of the pressure-bearing plate are provided with chamfers.
The plastic sleeper assembly according to claim 14, wherein the surface of the pressure-bearing plate is provided with second anti-skid convex and concave patterns.
The plastic sleeper assembly according to claim 14, wherein at least one second handle rope for carrying is provided on the side of the bottom plate.