A connection structure of polypropylene base mat

Abstract

The invention discloses a connection structure of a polypropylene base pad, comprising a first polypropylene base pad and a second polypropylene base pad, both of which are composed of an upper and lower layer of non-woven fabric combined with a V-shaped central drainage core plate; and also comprising a dragon spine connection part, which is composed of an upper and lower layer of bondable non-woven fabric and a plurality of separate modules, and each separate module is clamped between the first polypropylene base pad and the second polypropylene base pad, so that the connection and positioning of the polypropylene base pad can be quickly and conveniently achieved; through the arrangement of the dragon spine connection part, the invention can not only cooperate with external drive, in the form of a worm gear combination, but also realize the outward push of the claw and the rotational attachment to the single surface of the central drainage core plate, so that the connection and fixation of the polypropylene base pad can be completed quickly, easily and conveniently, and the unit spine section can have the ability of free adjustment at multiple angles, which greatly improves the practical flexibility and operability of the dragon spine connection part.

Description

Technical Field

[0001] The invention relates to the technical field of polypropylene base pads, in particular to a connection structure of polypropylene base pads. Background Art

[0002] The polypropylene base pad can be called a V-shaped or W-shaped drainage shock-absorbing pad. It is a three-dimensional drainage sheet, which is composed of two layers of non-woven fabrics and a middle drainage mesh core. The material of the middle mesh core is polypropylene, which has a high compressive strength. The upper and lower composite layers of non-woven fabrics play a filtering role, so that no particles will enter the drainage channel to block the channel in actual engineering applications, so as to ensure that the soil structure is perfect and there is no structural deformation or collapse. In projects with special anti-seepage design requirements, a composite geomembrane can be selected to play an anti-seepage role. Therefore, it can have three functions of drainage, anti-filtration and anti-seepage. It is mainly used in highways (including temporary roads), railways, embankments, earth-rock dams, sports fields and other projects to strengthen soft foundations and play the role of isolation and filtration.

[0003] At present, polypropylene base mats are always cut into multiple modules according to certain sizes for transportation and use. At present, most polypropylene base mats are laid directly or laid and positioned by bonding after laying. The stability of polypropylene base mats laid by these two methods is relatively poor. During use, they are prone to separation, overlap, etc. due to human or external factors, which will make the covered area exposed again and lose the paving effect. At the same time, the bonding method will greatly reduce the drainage and filtration effects of the joints of the polypropylene base mat, limit the flexible use function of the polypropylene base mat, and is not conducive to the later recycling and sorting.

[0004] Therefore, a connection structure of a polypropylene base mat is proposed. Summary of the invention

[0005] The object of the present invention is to provide a connection structure of a polypropylene base mat to solve the problems of poor connection stability, affecting the function of the connection, reducing the flexibility of use and being inconvenient for recycling mentioned in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a connection structure of a polypropylene base pad, comprising a first polypropylene base pad and a second polypropylene base pad, both of which are composed of upper and lower layers of non-woven fabric combined with a V-shaped central drainage core plate; and further comprising:

[0007] The ridge connection part is composed of two layers of adhesive non-woven fabric and multiple individual modules, and each individual module is fixed between the first polypropylene base pad and the second polypropylene base pad, which can quickly and conveniently realize the connection and positioning of the polypropylene base pad without affecting the actual use effect of the polypropylene base pad;

[0008] The dragon spine connection part includes several unit spine segments, and the interior of each unit spine segment is connected with a double-volute worm through a bearing on the same straight line. The double-volute worm is meshed with a second drive worm wheel and a first drive worm wheel located on the upper and lower sides of the double-volute worm through the spiral pattern. The rotating shaft at one end of the first drive worm wheel is fixed to the driving gear, and the second drive worm wheel is rotatably arranged in the interior of the unit spine segment through the rotating shaft, and a through rib hole is opened in the interior of the rotating shaft along the axis core, and is slidably connected to the rib rod through the rib hole, one end of the rib rod is integrally connected with the push screw, the rod body of the push screw is threadedly connected to the interior of the unit spine segment, and one end is rotatably arranged in the through hole in the center of the angle adjustment gear, and is fixed to one end of the torsion spring fixed in the through hole, the angle adjustment gear is installed and fixed to the projection body shaft end of the claw, and will mesh with the driving gear when the claw moves to the position of the central drainage core plate, and both ends of the double-volute worm extend through the unit spine segment and are fixed to the universal joint located between the unit spine segments.

[0009] Preferably, the dragon ridge connection part also includes two layers of non-woven fabric strips, and each layer of the non-woven fabric strips is integrally provided with adhesive cloth on both sides at the edges away from each other. The non-woven fabric strips are provided with docking grooves equidistantly arranged on the facing sides according to the V-shaped central drainage core plate, and are bonded and fixed to several unit ridge nodes through the grooves.

[0010] Preferably, the unit ridges are distributed in a linear array along the non-woven fabric strip.

[0011] Preferably, a through hole is opened at the middle and lower position inside each of the unit spine segments, and connecting holes extending to both sides are opened symmetrically along the center of the through hole, wherein the double-volute worm is connected to the inside of the through hole through a bearing.

[0012] Preferably, the outward ends of the double-spiral worm gears at both ends are integrally connected with a driving end head, which can cooperate with a driving mechanism to drive the overall double-spiral worm gear.

[0013] Preferably, the surface of the double-spiral worm is integrally provided with two sections of spirals in opposite directions in a centrally symmetrical manner.

[0014] Preferably, the first driving worm gear is rotatably disposed in a connecting hole located below the unit spine segment, and a rotating shaft at one end extends inside the unit spine segment and is fixed to a driving gear that is also rotatably disposed inside the unit spine segment.

[0015] Preferably, the radius of the ridge rod is greater than the radius of the push screw, and a screw hole for spiral movement is provided inside the unit ridge segment corresponding to the push screw.

[0016] Preferably, a claw groove for docking is provided on the claw side of the clamping claw corresponding to a single width of the V-shaped central drainage core plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention can cooperate with external drive through the arrangement of unit ridges, double-screw worms, driving ends, first driving worm wheels, driving gears, second driving worm wheels, ridge rods, push screws, angle adjustment gears and claws, and in the form of a worm and gear combination, simultaneously realize the outward push of the claws and the rotational attachment to the single surface of the central drainage core plate, thereby quickly, easily and conveniently completing the connection and fixation of the polypropylene base pad. At the same time, due to the grabbing connection method, under the locking of the gears, the polypropylene base pad can be prevented from being separated or offset after connection, and the stability of the polypropylene base pad after connection can be ensured.

[0019] The present invention, by setting a universal joint between the unit spine segments, not only can the unit spine segments have the ability to freely adjust at multiple angles to meet the connection and laying requirements of different polypropylene base pads, greatly improving the actual practical flexibility and operability of the dragon spine connection part, but also retains the integrated driving capability between the double-volute worm gears, so that it still has the working characteristics of one-end drive and overall movement after adjustment at different angles, thereby ensuring the connection of the polypropylene base pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a structural breakdown diagram of the present invention;

[0022] Figure 3 This is a disassembled diagram of the dragon spine connection portion of the present invention;

[0023] Figure 4 It is a schematic diagram of the whole spine section of the present invention;

[0024] Figure 5 It is a schematic diagram of a unit spine section of the present invention;

[0025] Figure 6 It is a cross-sectional view of a unit spine section of the present invention;

[0026] Figure 7 It is a schematic diagram of the internal structure of a unit spine node of the present invention;

[0027] Figure 8 This is a disassembled view of the connection structure between the second driving worm gear and the claw of the present invention.

[0028] In the figure:

[0029] 1. The first polypropylene base pad;

[0030] 2. Dragon spine connection part; 201. Non-woven fabric strip; 2011. Adhesive fabric; 202. Unit spine section; 203. Double spiral worm; 2031. Driving end; 204. First driving worm gear; 2041. Driving gear; 205. Second driving worm gear; 2051. Edge rod; 2052. Push screw; 2054. Angle adjustment gear; 2055. Claw; 206. Universal joint;

[0031] 3. Second polypropylene base pad. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 8 The present invention provides a technical solution for the connection structure of a polypropylene base pad:

[0034] A connection structure of a polypropylene base pad, comprising a first polypropylene base pad 1 and a second polypropylene base pad 3, both of which are composed of upper and lower layers of non-woven fabric combined with a V-shaped central drainage core plate; and further comprising:

[0035] The dragon spine connection part 2 is composed of two layers of bondable non-woven fabric and multiple individual modules, and each individual module is fixed between the first polypropylene base pad 1 and the second polypropylene base pad 3, which can quickly and conveniently realize the connection and positioning of the polypropylene base pad without affecting the actual use effect of the polypropylene base pad.

[0036] The ridge connection part 2 includes two layers of non-woven fabric strips 201, one above the other, and adhesive fabric 2011 is integrally provided on both sides of each non-woven fabric strip 201 at the edges away from each other. The non-woven fabric strip 201 is provided with slots for docking at equal intervals according to the V-shaped central drainage core plate on the facing side, and is bonded and fixed to a plurality of unit ridge nodes 202 through the slots. The unit ridge nodes 202 are distributed in a linear array along the non-woven fabric strip 201, and a through hole is provided in the middle and lower position inside each unit ridge node 202, and the through hole is provided along the opening. The center of the double-screw worm 203 is symmetrically provided with connecting holes extending to both sides, wherein the inside of the through hole is connected to a double-screw worm 203 through a bearing, and the outward ends of the double-screw worm 203 located at both ends of the non-woven fabric strip 201 are integrally connected to a driving end head 2031, which can cooperate with the driving mechanism to drive the overall double-screw worm 203, and the surface of the double-screw worm 203 is integrally provided with two sections of spirals in opposite directions in a centrally symmetrical manner, and is connected to the second driving worm wheel 205 and the first driving worm wheel 205 located on the upper and lower sides of the double-screw worm 203 through the spirals. A driving worm gear 204 is meshed and driven, wherein the first driving worm gear 204 is rotatably arranged in the connection hole located below the unit spine segment 202, and the rotating shaft at one end extends inside the unit spine segment 202 and is fixed to the driving gear 2041 which is also rotatably arranged inside the unit spine segment 202. The second driving worm gear 205 is rotatably arranged inside the unit spine segment 202 through the rotating shaft, and the interior of the rotating shaft is provided with a through rib hole along the axis core, and is slidably connected with the rib rod 2051 through the rib hole, and the rib rod 205 One end of the push screw 2052 is integrally connected with the push screw 2052, and the radius of the ridge rod 2051 is larger than the radius of the push screw 2052, and a screw hole for spiral movement is provided inside the unit ridge segment 202 corresponding to the push screw 2052, one end of the push screw 2052 is rotatably set in the through hole at the center of the angle adjustment gear 2054, the angle adjustment gear 2054 is installed and fixed on the axial end of the projection body of the claw 2055, and the claw side of the claw 2055 is provided with a butt-jointed claw groove corresponding to the single width of the V-shaped central drainage core plate.

[0037] During operation, the driving end 2031 is driven by a driving motor at either end of the dragon spine connection part 2, and the double-screw worm 203 is driven to rotate, and the rotating double-screw worm 203 transmits the first driving worm wheel 204 and the second driving worm wheel 205 through the spiral pattern on the surface, wherein the rotating second driving worm wheel 205 drives the ridge rod 2051 to rotate, and the ridge rod 2051 drives the push screw 2052 to rotate as a whole, and then the push screw 2052 pushes the claw 2055 out of the unit ridge section 202 along the screw hole inside the unit ridge section 202, and when the claw 2055 moves to the position of the central drainage core plate, the driving gear 2041 is just in sliding engagement with the angle adjustment gear 2054, and the double-screw worm 20 The first driving worm gear 204 driven by 3 drives the driving gear 2041 to rotate, and rotates and attaches the sliding meshing angle adjustment gear 2054 to the surface of the single strip of the central drainage core plate until the claw 2055 is caught on the single strip of the central drainage core plate, thereby realizing the rapid connection between the polypropylene base pads; when the polypropylene base pad needs to be disassembled and recycled, the double-screw worm 203 can be driven in the opposite direction by the driving end 2031 to drive the first driving worm gear 204 and the second driving worm gear 205 to reverse, and the claw 2055 is rotated and reset to the inside of the non-woven fabric strip 201 by the first driving worm gear 204 and the second driving worm gear 205, and then the dragon spine connection part 2 can be dragged away, so that the connection of the laying of the polypropylene base pad and the disassembly of the recycling are completed.

[0038] To summarize, through the arrangement of the unit ridge segment 202, the double-screw worm 203, the driving end 2031, the first driving worm wheel 204, the driving gear 2041, the second driving worm wheel 205, the ridge rod 2051, the push screw 2052, the angle adjustment gear 2054 and the claw 2055, it is possible to cooperate with the external drive, in the form of a worm gear combination, to simultaneously realize the outward push of the claw 2055 and the rotational attachment to the single surface of the central drainage core plate, so that the connection and fixation of the polypropylene base pad can be completed quickly, easily and conveniently. At the same time, due to the grabbing connection method, under the locking of the gear, the polypropylene base pad can be prevented from detaching, deviating, etc. after the connection, thereby ensuring the stability of the polypropylene base pad after connection.

[0039] As an embodiment of the present invention, Figure 4 As shown, both ends of the double-screw worm 203 extend through the unit segments 202 and are fixed to the universal joint 206 located between the unit segments 202 .

[0040] When working, the unit spine section 202 will be driven by the non-woven fabric strip 201 and cooperate with the universal joint 206 to freely adjust the laying range along the laying path of the ground, so that the dragon spine connection part 2 can meet various laying conditions of the polypropylene base mat while retaining the overall active driving ability.

[0041] In summary, by connecting the universal joint 206 between the unit spine segments 202, not only can the unit spine segments 202 have the ability to freely adjust at multiple angles to meet the connection and laying requirements of different polypropylene base pads, greatly improving the practical flexibility and operability of the dragon spine connection part 2, but also retaining the integrated driving capability between the double-volute worm gear 203, so that it still has the working characteristics of one-end drive and overall movement after adjustment at different angles, thereby ensuring the connection of the polypropylene base pad.

[0042] Working principle: When working, first lay the polypropylene base pad at the designated position according to the operating specifications, then pull and transfer the dragon spine connection part 2 to the connection position between the polypropylene base pads, and adhere the upper and lower adhesive cloths 2011 to the surface of the polypropylene base pad to preliminarily position the polypropylene base pad, and then drive the driving end 2031 through the driving motor at either end of the dragon spine connection part 2, and thereby realize the rotation drive of the overall double-screw worm 203 through the universal joint 206, and the rotating double-screw worm 203 will transmit the first driving worm wheel 204 and the second driving worm wheel 205 through the screech on the surface, wherein the rotating second driving worm wheel 205 will drive the ridge rod 2051 to rotate, and the ridge rod 2051 will drive the push screw 2052 to rotate as a whole, and then the push screw 2052 will push the claw 2055 out of the inside of the unit spine segment 202 along the screw hole inside the unit spine segment 202, and the claw When 2055 moves to the position of the central drainage core plate, the driving gear 2041 is just slidingly engaged with the angle adjustment gear 2054, and the first driving worm wheel 204 driven by the double-screw worm 203 will drive the driving gear 2041 to rotate, and rotate the slidingly engaged angle adjustment gear 2054 to the surface of the single strip of the central drainage core plate until the claw 2055 is caught on the single strip of the central drainage core plate, thereby realizing a quick connection between the polypropylene base pads; when the polypropylene base pad needs to be disassembled and recycled, the overall double-screw worm 203 can be driven in the opposite direction by the driving end head 2031, so that it drives the first driving worm wheel 204 and the second driving worm wheel 205 to reverse, and the claw 2055 is rotated and reset to the inside of the non-woven fabric strip 201 by the first driving worm wheel 204 and the second driving worm wheel 205, and then the dragon spine connecting part 2 can be dragged away, so that the connection of the laying of the polypropylene base pad and the disassembly of the recycling are realized.

[0043] It should be noted that there is a certain friction force between the end of the push screw 2052 inserted into the angle adjustment gear 2054 and the angle adjustment gear 2054 .

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure of a polypropylene base mat, comprising: The first polypropylene base pad (1) and the second polypropylene base pad (3) are both composed of two layers of non-woven fabric combined with a V-shaped central drainage core plate; and are characterized in that they also include: The ridge connection part (2) is mainly composed of two layers of adhesive non-woven fabric and multiple individual modules, and each individual module is fixed between the first polypropylene base pad (1) and the second polypropylene base pad (3) to achieve connection and positioning of the polypropylene base pad; The dragon spine connection part (2) comprises a plurality of unit spine segments (202), the interior of each unit spine segment (202) is connected to a double-screw worm (203) via a bearing on the same straight line, the double-screw worm (203) meshes with a second driving worm wheel (205) and a first driving worm wheel (204) located on the upper and lower sides of the double-screw worm (203) via the spirals, wherein a rotating shaft at one end of the first driving worm wheel (204) is fixed to a driving gear (2041), the second driving worm wheel (205) is rotatably arranged inside the unit spine segment (202) via the rotating shaft, and a through rib hole is provided inside the rotating shaft along the axis core, and is slidably connected to the rib rod (2051) via the rib hole, One end of the prism rod (2051) is integrally connected to the push screw (2052); the rod body of the push screw (2052) is threadedly connected to the inside of the unit spine (202); one end of the push screw is rotatably arranged in the through hole at the center of the angle adjustment gear (2054) and is fixed to one end of a torsion spring fixed in the through hole; the angle adjustment gear (2054) is mounted and fixed to the end of the lofting body of the claw (2055) and meshes with the driving gear (2041) when the claw (2055) moves to the position of the central drainage core plate; both ends of the double-screw worm (203) extend out of the unit spine (202) and are fixed to the universal joint (206) located between the unit spines (202); The surface of the double-volute worm (203) is integrally provided with two sections of volutes in opposite directions in a centrosymmetric manner; The claw side of the clamping claw (2055) is provided with a butt-jointed claw groove corresponding to a single width of the V-shaped central drainage core plate.

2. A connection structure of a polypropylene base mat according to claim 1, characterized in that: The ridge connection portion (2) further comprises an upper and lower layer of non-woven fabric strips (201), and adhesive fabrics (2011) are integrally provided on both sides of each layer of the non-woven fabric strips (201) at edges away from each other. The non-woven fabric strips (201) are provided with slots for docking at equal intervals on the facing sides according to the V-shaped central drainage core plate, and are bonded and fixed to the plurality of unit ridge nodes (202) via the slots.

3. A connection structure of a polypropylene base mat according to claim 1, characterized in that: The unit ridge nodes (202) are distributed in a linear array along the non-woven fabric strip (201).

4. A connection structure of a polypropylene base mat according to claim 1, characterized in that: A through hole is provided at the middle and lower position inside each unit ridge segment (202), and connecting holes extending to both sides are symmetrically provided along the center of the through hole, wherein the double-volute worm (203) is connected inside the through hole via a bearing.

5. The connection structure of a polypropylene base mat according to claim 1, characterized in that: The outward ends of the double-screw worm (203) located at both ends of the non-woven fabric strip (201) are integrally connected to a driving end head (2031), which can cooperate with a driving mechanism to drive the overall double-screw worm (203).

6. A connection structure of a polypropylene base mat according to claim 1, characterized in that: The first driving worm gear (204) is rotatably disposed in a connection hole located below the unit spine segment (202), and a rotating shaft at one end extends inside the unit spine segment (202) and is fixed to a driving gear (2041) that is also rotatably disposed inside the unit spine segment (202).

7. A connection structure of a polypropylene base mat according to claim 1, characterized in that: The radius of the ridge rod (2051) is greater than the radius of the push screw (2052), and a screw hole for spiral movement is provided inside the unit spine (202) corresponding to the push screw (2052).

Images