A pre-laid EPDM self-adhesive membrane waterproofing roll

Abstract

The present invention provides a pre-laid EPDM self-adhesive membrane waterproofing roll material, which belongs to the technical field of building waterproofing. The present invention comprises an EPDM base layer including an upper sheet layer and a lower sheet layer, and a plurality of expansion and expansion parts are arranged between the two. At the same time, a water hole is provided on the upper sheet layer and at each expansion and expansion part, so that when there is too much water in the soil, the water can first enter the expansion and expansion part through the water hole, and the expansion and expansion part expands after absorbing water to lift the upper sheet layer, so that the space between the upper sheet layer and the lower sheet layer increases and generates negative pressure, and the excess water is sucked into the EPDM base layer from the water hole and stored. When the water in the expansion and expansion part is sucked out from the water hole when there is too little water in the soil, the expansion and expansion part loses water and shrinks, so that the upper sheet layer moves down and discharges the stored water, so as to realize soil water replenishment, save water resources, reduce the frequency of manual watering, and reduce the labor burden.

Description

Technical Field

[0001] The invention relates to the technical field of building waterproofing, in particular to a pre-laid EPDM self-adhesive membrane waterproofing coiled material. Background Art

[0002] In order to ensure the dryness of the interior of a building during construction, pre-laid waterproofing membranes are usually installed in areas of the building that are prone to water ingress, such as roofs, walls, and basements, to avoid indoor moisture, rot, water leakage, and other problems, and to improve the living experience. In addition, since pre-laid waterproofing membranes are usually pre-made in the factory, it can reduce on-site operation time and improve laying efficiency. In addition, it can facilitate quality control during the production process and reduce the impact of on-site factors. Therefore, pre-laid waterproofing membranes are widely used in the construction process of modern buildings.

[0003] At present, the structure of the existing pre-laid waterproofing coiled material on the market is usually a pre-laid EPDM waterproofing coiled material disclosed in patent CN216507200U, which includes a EPDM homogeneous sheet layer with a reinforcement layer, and a self-adhesive layer with mineral sand is arranged on one side of the EPDM homogeneous sheet, that is, it includes an EPDM base layer and a self-adhesive layer arranged on the surface of the base layer, and the mineral sand is covered outside the base layer by the self-adhesive layer. Although the above structure can meet the waterproofing needs of traditional buildings, for waterproofing in special scenes such as some roof gardens, the existing waterproofing coiled material can only be laid on the side wall or bottom wall of the flower bed, which can only prevent the water in the flower bed from infiltrating into the building. However, since the plants in the flower bed need to absorb water, and the use scene of the roof garden is often far away from the natural water source, its water is usually supplemented by rain, snow or artificial watering, which makes its water very precious. In addition, there is a lot of randomness when it rains or snows or when watering manually. For example, if it rains or snows just after watering manually, the extra rain and snow water will flow away directly and cannot be used, resulting in a waste of resources. It will also increase the frequency of manual watering and increase the labor burden. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention aims to provide a pre-laid EPDM self-adhesive membrane waterproofing coil, so as to set a base layer including an upper sheet layer and a lower sheet layer, and a supporting net composed of a plurality of ribs is arranged between the two, the supporting net is in contact with the upper sheet layer, and an expansion and expansion member is arranged between the supporting net and the lower sheet layer. In addition, a water through hole is provided on the upper sheet layer, and the water through hole is located at the expansion and expansion member, so that when the amount of water is large, the expansion and expansion member absorbs water and expands, thereby lifting the supporting net, and pushing the upper sheet layer away from the lower sheet layer to expand the gap between the two, thereby forming a negative pressure in the base layer, sucking excess water into the base layer, and when the soil is subsequently too dry, the water in the base layer is gradually sucked away by the soil, causing the expansion and expansion member to dehydrate and shrink, waiting for the next water storage, thereby realizing the storage and utilization of excess water, avoiding the waste of resources, and also reducing the frequency of manual watering and reducing the labor burden.

[0005] The specific technical solutions are as follows:

[0006] A pre-laid EPDM self-adhesive film waterproofing coiled material comprises an EPDM base layer, a self-adhesive film layer and a quartz sand layer, wherein the self-adhesive film layer is arranged on one or both sides of the EPDM base layer, and the self-adhesive film layer is covered with a quartz sand layer. The coiled material has the following characteristics and further comprises a supporting net and an expansion and expansion member, and the EPDM base layer comprises an upper sheet layer and a lower sheet layer, the upper sheet layer and the lower sheet layer are stacked and the outer sides of the two are connected to each other, the supporting net and the expansion and expansion member are both arranged between the upper sheet layer and the lower sheet layer, the top of the supporting net abuts against the bottom surface of the upper sheet layer, the expansion and expansion member is arranged on the lower sheet layer and is located at the bottom of the supporting net, and a water through hole is provided on the upper sheet layer and at each expansion and expansion member.

[0007] The above-mentioned pre-laid EPDM self-adhesive membrane waterproofing coiled material, wherein the supporting mesh includes transverse ribs and longitudinal ribs, the transverse ribs and longitudinal ribs are formed in a criss-cross manner, and an expansion and contraction member is provided at the intersection of each transverse rib and longitudinal rib.

[0008] The above-mentioned pre-laid EPDM self-adhesive membrane waterproofing coiled material, wherein the supporting net is made of EPDM rubber, and the supporting net is protrudingly arranged on the bottom surface of the upper sheet layer.

[0009] The above-mentioned pre-laid EPDM self-adhesive membrane waterproofing coiled material, wherein the space between the upper sheet layer and the lower sheet layer and located in the space formed by the interweaving of the transverse reinforcement and the longitudinal reinforcement is filled with sponge.

[0010] The above-mentioned pre-laid EPDM self-adhesive membrane waterproofing coiled material, wherein the expansion and contraction component comprises a water-passing expansion and contraction sleeve and an expansion component, the water-passing expansion and contraction sleeve is a columnar structure and contracts along its axial direction, and the expansion component is filled in the water-passing expansion and contraction sleeve.

[0011] The above-mentioned pre-laid EPDM self-adhesive membrane waterproofing coiled material, wherein the water-passing expansion sleeve includes an upper sleeve and a lower sleeve, the upper sleeve and the lower sleeve are both arranged in a barrel shape, the barrel mouths of the upper sleeve and the lower sleeve are arranged relatively and coaxially sleeved, and one end of the barrel bottom of the upper sleeve and the lower sleeve respectively abuts against the supporting net and the lower sheet layer, and at the same time, the expansion piece is arranged in the space formed by the combination of the upper sleeve and the lower sleeve, and the upper sleeve is arranged outside the lower sleeve, the outer side wall of the upper sleeve is arranged in an inverted frustum shape, and a limiting edge is arranged outside the barrel mouth of the lower sleeve, the diameter of the limiting edge is larger than the inner diameter of the barrel mouth of the upper sleeve and smaller than the diameter of the barrel bottom of the upper sleeve, and a sealing ring is arranged between the barrel mouth of the lower sleeve and the inner wall of the upper sleeve.

[0012] The above-mentioned pre-laid EPDM self-adhesive membrane waterproofing coiled material, wherein the upper cover and the lower cover are both made of hard plastic material, and the expansion piece is water-absorbent nylon.

[0013] The above-mentioned pre-laid EPDM self-adhesive membrane waterproofing coiled material, wherein the water-through hole includes an upper large hole, a lower small hole and a plurality of auxiliary holes, the upper large hole and the lower small hole are connected to each other, the upper large hole penetrates the top surface of the upper sheet layer, the lower small hole penetrates the bottom surface of the upper sheet layer and the supporting net, a step is formed between the bottom of the upper large hole and the opening of the lower small hole, a plurality of auxiliary holes are all arranged on the step and all penetrate the bottom surface of the upper sheet layer and the supporting net, a filter net is installed in the upper large hole, and a circle of upwardly extending retaining edges is arranged on the step and at the opening of the lower small hole, and the retaining edges separate the lower small hole and the plurality of auxiliary holes into two areas.

[0014] The above-mentioned pre-laid EPDM self-adhesive membrane waterproofing coiled material, wherein a circle of support plates are arranged on the bottom of the barrel of the upper sleeve and the lower sleeve and located on the outside thereof, and the parts of the support net and the lower sheet layer for the expansion and expansion parts to contact are provided with embedding grooves corresponding to the support plates, and the groove openings are of a contracted structure, and the support plates are embedded in the corresponding embedding grooves. At the same time, a water hole is provided in the center of the support plate of the upper sleeve, and the water hole is vertically opposite to the lower small hole, and a plurality of inlet and outlet holes corresponding to the auxiliary holes are provided on the periphery of the support plate of the upper sleeve.

[0015] The above-mentioned pre-laid EPDM self-adhesive membrane waterproofing coiled material, wherein the transverse reinforcement of the supporting mesh is arranged along the width direction of the EPDM base layer, the longitudinal reinforcement is arranged along the length direction of the EPDM base layer, and the thickness of the transverse reinforcement is greater than the thickness of the longitudinal reinforcement.

[0016] The positive effects of the above technical solution are:

[0017] The above-mentioned pre-laid EPDM self-adhesive membrane waterproofing coiled material is provided by arranging the EPDM base layer into a double-layer structure including an upper sheet layer and a lower sheet layer, and the upper sheet layer and the lower sheet layer are stacked and the outer edges of the two are connected to each other to form a pocket structure closed on all sides, the support net and the expansion and expansion member are both arranged between the upper sheet layer and the lower sheet layer, and the top of the support net is abutted against the bottom surface of the upper sheet layer, the expansion and expansion member is arranged on the lower sheet layer and is located at the bottom of the support net, and a water hole is provided on the upper sheet layer and at each expansion and expansion member, so that when there is too much water in the soil, the water first passes through the expansion hole. The water hole enters into the expansion and expansion part, which expands after absorbing water and stretches out, thereby lifting the supporting net, so that the space between the upper sheet layer and the lower sheet layer increases and generates negative pressure, and the excess water is sucked into the EPDM base layer from the water hole and stored. When there is too little water in the soil later, the stored water is absorbed from the water hole, causing the expansion and expansion part to lose water and shrink, so that the upper sheet layer moves downward toward the lower sheet layer to squeeze out the water stored between the two, thereby replenishing the water in the soil, satisfying the storage and utilization of excess water, avoiding the waste of resources, and also reducing the frequency of manual watering and alleviating the labor burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of an embodiment of a pre-laid EPDM self-adhesive membrane waterproofing roll material of the present invention;

[0019] Figure 2 It is a cross-sectional view of the expansion and contraction member of the pre-laid EPDM self-adhesive membrane waterproofing coiled material of the present invention after installation;

[0020] Figure 3 It is a cross-sectional view of an expansion and telescopic component of a pre-laid EPDM self-adhesive film waterproofing coiled material according to the present invention.

[0021] In the attached drawings: 1. EPDM base layer; 11. upper sheet layer; 12. lower sheet layer; 111. water hole; 121. embedded groove; 1111. upper large hole; 1112. lower small hole; 1113. auxiliary hole; 1114. step; 1115. retaining edge; 2. self-adhesive film layer; 3. quartz sand layer; 4. supporting net; 5. expansion and expansion member; 51. water-through expansion sleeve; 52. expansion member; 511. upper sleeve; 512. lower sleeve; 513. limiting edge; 514. sealing ring; 515. support plate; 5151. water hole; 5152. inlet and outlet holes; 6. sponge; 7. coating layer. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the following embodiments are combined with the attached Figure 1 To Attachment Figure 3The technical solution provided by the present invention is described in detail, but the following content is not intended to limit the present invention.

[0023] Figure 1 1 is a cross-sectional view of an embodiment of a pre-laid EPDM self-adhesive membrane waterproofing roll of the present invention. Figure 1 As shown, the pre-laid EPDM self-adhesive film waterproofing coil provided in this embodiment includes: an EPDM base layer 1, a self-adhesive film layer 2, a quartz sand layer 3, a support net 4, and a plurality of expansion and expansion parts 5. At this time, the EPDM base layer 1 is used as a waterproof layer, which has strong resilience and high elongation performance, can resist micro cracks in the later stage of the building, and is less affected by the influence of micro deformation of the building, and has a significant waterproof effect. At the same time, a self-adhesive film layer 2 is provided on one or both sides of the EPDM base layer 1. Preferably, the self-adhesive film layer 2 is a strongly grafted EPDM self-adhesive, which is compatible with the performance of the EPDM base layer 1, provides extremely strong bonding performance, and has good acid and alkali resistance and corrosion resistance, and a longer service life. A quartz sand layer 3 is covered on the self-adhesive film layer 2. The quartz sand is made of nano high-strength diamond quartz sand, which not only has extremely high structural strength, but also has strong compatibility with concrete and can penetrate into the post-poured concrete to form a solid union, thereby preventing blanching and also extending the service life to the same life as the building.

[0024] Specifically, the EPDM base layer 1 includes an upper sheet layer 11 and a lower sheet layer 12. At this time, the upper sheet layer 11 and the lower sheet layer 12 are stacked and the outer edges of the two are connected to each other, so that a gap can be formed between the upper sheet layer 11 and the lower sheet layer 12, and a pocket structure with four sides closed is formed, which provides conditions for the subsequent storage of excess water. In addition, the lower sheet layer 12 is used as the main waterproof structure, and its thickness is appropriately increased relative to the thickness of the upper sheet layer 11 to ensure waterproof and impermeable. In addition, the support net 4 and the expansion and telescopic parts 5 are both arranged between the upper sheet layer 11 and the lower sheet layer 12, and the top of the support net 4 is abutted against the bottom surface of the upper sheet layer 11, so that the support net 4 can provide auxiliary support for the upper sheet layer 11. At the same time, the expansion and telescopic parts 5 are arranged on the lower sheet layer 12 and are located at the bottom of the support net 4, so that when the expansion and telescopic parts 5 expand and extend, the upper sheet layer 11 can be lifted up by the support net 4, so that the space between the upper sheet layer 11 and the lower sheet layer 12 is increased and negative pressure is generated, and excess water is sucked into the EPDM base layer 1 from the water hole 111 and stored. When the expansion and telescopic parts 5 shrink, the upper sheet layer 11 can move downward and squeeze out the water stored between the upper sheet layer 11 and the lower sheet layer 12, so as to replenish the water in the soil, meet the storage and utilization of excess water, avoid waste of resources, and also reduce the frequency of manual watering and reduce the labor burden. At this time, a water hole 111 is opened on the upper sheet layer 11 and at each expansion and telescopic component 5, so that excess water can be sucked into the space between the upper sheet layer 11 and the lower sheet layer 12 through the water hole 111 and stored, and the stored water can be squeezed out from the water hole 111. At the same time, the water in the water hole 111 can quickly act on the expansion and telescopic component 5, causing the expansion and telescopic component 5 to make corresponding movements.

[0025] More specifically, the support net 4 includes transverse ribs and longitudinal ribs. At this time, the transverse ribs and longitudinal ribs are formed in a crisscross manner, which has better integrity and better support effect on the upper sheet layer 11. At the same time, an expansion and expansion member 5 is provided at the intersection of each transverse rib and longitudinal rib, so that the expansion and expansion member 5 can act on the transverse rib and the longitudinal rib at the same time, thereby maximizing the support effect on the upper sheet layer 11. It is worth pointing out that when there are more expansion and expansion members 5, the larger the area of ​​the upper sheet layer 11 supported, the better the water storage effect.

[0026] More specifically, the material of the support net 4 is preferably EPDM rubber, and the support net 4 is arranged to protrude on the bottom surface of the upper sheet layer 11, so that the support net 4 can serve as a reinforcing structure of the upper sheet layer 11, which can not only meet the use requirements of supporting the upper sheet layer 11 to the greatest extent, but also avoid material waste caused by increasing the thickness of the upper sheet layer 11. In addition, the support net 4 made of EPDM rubber and the upper sheet layer 11 are of the same material, and the overall integration is very good, which is convenient for processing and manufacturing.

[0027] More specifically, a sponge 6 is filled between the upper sheet layer 11 and the lower sheet layer 12 and in the space formed by the interweaving of the transverse ribs and the longitudinal ribs. The sponge 6 can improve the water storage capacity of the EPDM-based layer 1 and achieve a better water absorption effect.

[0028] Figure 2 It is a cross-sectional view of an expansion and contraction member of a pre-laid EPDM self-adhesive film waterproofing membrane of the present invention; Figure 3 This is a cross-sectional view of an expansion and contraction member of a pre-laid EPDM self-adhesive membrane waterproofing roll of the present invention. Figure 1 , Figure 2 as well as Figure 3 As shown, the expansion and expansion member 5 for lifting the support net 4 includes a water-through expansion sleeve 51 and an expansion member 52. The water-through expansion sleeve is a columnar structure and expands and contracts along its axial direction, which can change its own length to meet the use requirements of changing the space between the upper sheet layer 11 and the lower sheet layer 12. In addition, the expansion member 52 is filled in the water-through expansion sleeve 51, and the change in the length of the water-through expansion sleeve 51 is driven by the change in volume of the expansion member 52 when absorbing and losing water, which provides conditions for water storage and drainage of the EPDM base layer 1.

[0029] More specifically, the water-passing telescopic sleeve 51 includes an upper sleeve 511 and a lower sleeve 512. At this time, the upper sleeve 511 and the lower sleeve 512 are arranged in a barrel shape, so that the upper sleeve 511 and the lower sleeve 512 both have an inner cavity. During installation, the barrel openings of the upper sleeve 511 and the lower sleeve 512 are arranged relatively and coaxially sleeved, so that the axial connection of the upper sleeve 511 and the lower sleeve 512 is realized and the axial relative sliding can be achieved, meeting the telescopic requirements. During installation, the barrel bottom ends of the upper sleeve 511 and the lower sleeve 512 are respectively abutted against the support net 4 and the lower sheet layer 12, so that the telescopic movement can push the support net 4 and the lower sheet layer 12 to move relative to each other, thereby realizing the adjustment of the interval size between the upper sheet layer 11 and the lower sheet layer 12. At the same time, the expansion member 52 is arranged in the space formed by the combination of the upper sleeve 511 and the lower sleeve 512, and the expansion member 52 is used as a driving structure for the relative telescopic movement of the upper sleeve 511 and the lower sleeve 512. Preferably, the expansion member 52 is made of a material that expands when it absorbs water and shrinks when it loses water. It can expand when there is a large amount of water, thereby lifting up the upper sheet layer 11, so that the space between the upper sheet layer 11 and the lower sheet layer 12 is expanded, forming a negative pressure to absorb and store excess water. When the soil subsequently dries and loses water, the expansion member 52 loses water and shrinks, so that the upper sheet layer 11 moves downward under the action of the soil, thereby squeezing the stored water into the soil, thereby replenishing the soil, realizing resource utilization, and reducing the frequency of manual watering. Furthermore, the upper sleeve 511 is sleeved outside the lower sleeve 512. At this time, the outer wall of the upper sleeve 511 is arranged in an inverted truncated cone shape, so that the lower end of the upper sleeve 511 is a constricted structure. At the same time, a limiting edge 513 is arranged outside the barrel opening of the lower sleeve 512, and the diameter of the limiting edge 513 is set to be larger than the inner diameter of the barrel opening of the upper sleeve 511 and smaller than the diameter of the barrel bottom of the upper sleeve 511, so that when the upper sleeve 511 moves upward relative to the lower sleeve 512, the barrel opening of the upper sleeve 511 can be closed by the lower sleeve 512. The limit edge 513 on 12 is blocked, thereby limiting the upper sleeve 511 from escaping from the lower sleeve 512, maintaining the stability of the structure. In addition, the upper sleeve 511 arranged in an inverted frustum can gradually expand its internal cavity following the distance it moves upward, that is, when the water-transmitting telescopic sleeve 51 is telescoped, its telescopic speed is inversely proportional to its length change, that is, its telescopic speed is relatively slow at the end of the telescope, thereby reducing the stress on the support net 4 and the upper sheet layer 11 and extending the service life of both. In addition, a sealing ring 514 is provided between the barrel mouth of the lower sleeve 512 and the inner wall of the upper sleeve 511. At this time, the sealing ring 514 is sleeved on the barrel mouth of the upper sleeve 511, so that the sealing ring 514 can be located at the minimum inner diameter of the lower sleeve 512 and can always fit on the outer wall of the lower sleeve 512. The sealing ring 514 realizes the sealing between the upper sleeve 511 and the lower sleeve 512, and reduces the problem of interference of water sucked between the upper sheet layer 11 and the lower sheet layer 12 on the movement of the expansion member 52, so that the deformation of the expansion member 52 is basically affected by the moisture in the soil, thereby improving the movement accuracy of the expansion and telescopic member 5.

[0030] More specifically, the upper sleeve 511 and the lower sleeve 512 are both made of hard plastic material, so that the deformation of the inner diameter of the upper sleeve 511 and the lower sleeve 512 is extremely small, so that when the expansion member 52 expands or contracts, the upper sleeve 511 and the lower sleeve 512 basically do not undergo radial deformation, so that the upper sleeve 511 and the lower sleeve 512 can be relatively expanded and contracted along their own axis, better meeting the use requirements. In addition, the expansion member 52 is water-absorbent nylon, which is a commercially available product, easy to obtain, and has a lower cost. In addition, it has a good water absorption rate, meets the characteristics of water absorption expansion and water loss contraction, and its chemical properties are stable, can be used for a long time and multiple times, is not easy to be damaged, and has a longer service life.

[0031] More specifically, the water holes 111 on the upper sheet layer 11 include an upper large hole 1111, a lower small hole 1112 and a plurality of auxiliary holes 1113. At this time, the upper large hole 1111 and the lower small hole 1112 are interconnected so that water can smoothly pass through the upper sheet layer 11, thereby achieving water storage and extrusion. In addition, the upper large hole 1111 penetrates the top surface of the upper sheet layer 11, and the lower small hole 1112 penetrates the bottom surface of the upper sheet layer 11 and the support net 4, thereby forming a step 1114 at the bottom of the upper large hole 1111 and the orifice of the lower small hole 1112, and the formed step 1114 provides an intermediate expansion space, which provides conditions for the subsequent arrangement of the auxiliary holes 1113. During processing, several auxiliary holes 1113 are set on the step 1114 and penetrate the bottom surface of the upper sheet layer 11 and the support net 4, that is, the water from the upper large hole 1111 can enter the lower small hole 1112 and the auxiliary hole respectively, and the water in the lower small hole 1112 and the auxiliary hole 1113 can also be discharged through the upper large hole 1111, which can not only meet the expansion and contraction requirements of the expansion and contraction member 5, but also meet the use requirements of water absorption and squeezing. In addition, a filter net is installed in the upper large hole 1111, and the filter net can limit the soil on the upper sheet layer 11 from entering the water storage space between the upper sheet layer 11 and the lower sheet layer 12 through the water hole 111 to cause the water storage space to shrink. In addition, it can also prevent the soil from entering the expansion and contraction member 5 and affecting its expansion and contraction movement. In addition, a circle of upwardly extending retaining edge 1115 is provided on the step 1114 and at the opening of the lower small hole 1112. At the same time, the retaining edge 1115 separates the lower small hole 1112 and the plurality of auxiliary holes 1113 into two areas, so that when the water is discharged outward through the auxiliary holes 1113, the discharged water can be minimized from entering the lower small hole 1112 and affecting the telescopic movement of the expansion and contraction member 5, so that the expansion and contraction member 5 can lose water and shrink as much as possible, thereby squeezing out the water in the EPDM base layer 1. However, after the water is squeezed out to a certain amount, a small amount of water will infiltrate into the lower small hole 1112, and at this time, the expansion and contraction member 5 will continue to lose water and shrink, thereby avoiding the excessive squeezing out of the water stored in the EPDM base layer 1, and the water replenishment lasts longer, further delaying the frequency of artificial watering. It is worth pointing out that the retaining edge 1115 passes through the filter screen, that is, the retaining edge 1115 divides the filter screen into two parts, the middle filter screen covers the lower small hole 1112, and the outer filter screen covers the auxiliary hole 1113, thereby distinguishing different functional areas and reducing the problem of mutual influence.

[0032] More specifically, a circle of supporting plates 515 are arranged on the barrel bottom of the upper sleeve 511 and the lower sleeve 512 and located outside thereof, and the supporting plates 515 increase the contact area of ​​the barrel bottom of the upper sleeve 511 and the lower sleeve 512, thereby increasing the force bearing area of ​​the support net 4 and the lower sheet layer 12, and reducing the probability of puncture. In addition, the parts of the support net 4 and the lower sheet layer 12 for the expansion and telescopic member 5 to contact are also provided with embedded grooves 121 corresponding to the supporting plates 515, and the embedded grooves 121 provide a concave installation space, so as to realize the hidden installation of the end of the expansion member 52 and the telescopic member, reduce the space occupation, and thus increase the water storage space. In addition, the notch of the embedded groove 121 is set to a shrinking structure, and the supporting plate 515 is embedded in the corresponding embedded groove 121, so as to prevent the end of the expansion and telescopic member 5 after installation from coming out of the embedded groove 121, and the structural design is more reasonable. At the same time, a water hole 5151 is also provided at the center of the support plate 515 of the upper sleeve 511. At this time, the water hole 5151 is vertically opposite to the lower small hole 1112, so that the water in and out of the lower small hole 1112 is related to the expansion member 52, ensuring that the expansion and telescopic member 5 can be smoothly extended and retracted. In addition, a plurality of inlet and outlet holes 5152 corresponding to the auxiliary holes 1113 are provided on the periphery of the support plate 515 of the upper sleeve 511. The inlet and outlet holes 5152 ensure the smooth flow of the auxiliary holes 1113, avoiding the problem that the support plate 515 blocks and blocks the auxiliary holes 1113.

[0033] More specifically, the transverse ribs of the support net 4 are arranged along the width direction of the EPDM base layer 1, and the longitudinal ribs are arranged along the length direction of the EPDM base layer 1, so that the support net 4 is crisscrossed. In addition, the thickness of the transverse ribs is greater than the thickness of the longitudinal ribs, so that the longitudinal deformation capacity of the support net 4 is greater than the lateral deformation capacity, so that it can be rolled up along its length direction during storage, transportation and paving after production, meeting the design requirements of the coiled material.

[0034] As a preferred embodiment, it also includes a covering layer 7, that is, a covering layer 7 is arranged on the outside and / or inside of the outer edges of the upper sheet layer 11 and the lower sheet layer 12, and the covering layer 7 is made of the same material as the EPDM base layer 1, and the upper edge of the covering layer 7 overlaps the upper sheet layer 11, and the lower edge overlaps the lower sheet layer 12. The covering layer 7 improves the connection strength between the upper sheet layer 11 and the lower sheet layer 12, and the structure is more reliable.

[0035] The pre-laid EPDM self-adhesive membrane waterproofing coiled material provided in this embodiment comprises an EPDM base layer 1, a self-adhesive membrane layer 2, a quartz sand layer 3, a support net 4 and an expansion and expansion member 5; the EPDM base layer 1 is arranged into a double-layer structure including an upper sheet layer 11 and a lower sheet layer 12, and a plurality of expansion and expansion members 5 are arranged between the two, and a support net 4 is arranged between the expansion and expansion members 5 and the upper sheet layer 11, and at the same time, a water hole 111 is arranged on the upper sheet layer 11 and at each expansion and expansion member 5, so that when there is too much water in the soil, the water can first enter the expansion and expansion member 5 through the water hole 111. In the expansion and expansion member 5, the expansion and expansion member 5 expands after absorbing water and then extends to lift up the support net 4 and the upper sheet layer 11, so that the space between the upper sheet layer 11 and the lower sheet layer 12 increases and generates negative pressure, and the excess water is sucked into the EPDM base layer 1 through the water hole 111 and stored. When the water in the soil is too little later, the water in the expansion and expansion member 5 is sucked out from the water hole 111, and the expansion and expansion member 5 loses water and shrinks, so that the upper sheet layer 11 moves down and discharges the stored water, thereby realizing soil water replenishment, avoiding the waste of water resources, and also reducing the frequency of manual watering and alleviating the labor burden.

[0036] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A pre-laid EPDM self-adhesive film waterproofing coiled material, comprising an EPDM base layer, a self-adhesive film layer and a quartz sand layer, wherein the self-adhesive film layer is arranged on one or both sides of the EPDM base layer, and the quartz sand layer is covered on the self-adhesive film layer, characterized in that: It also includes a support net and an expansion and expansion member, and the EPDM base layer includes an upper sheet layer and a lower sheet layer, the upper sheet layer and the lower sheet layer are stacked and the outer edges of the two are connected to each other, the support net and the expansion and expansion member are both arranged between the upper sheet layer and the lower sheet layer, the top of the support net abuts against the bottom surface of the upper sheet layer, the expansion and expansion member is arranged on the lower sheet layer and is located at the bottom of the support net, and a water hole is opened on the upper sheet layer and at each of the expansion and expansion members; The expansion and telescopic member comprises a water-through telescopic sleeve and an expansion member, the water-through telescopic sleeve is a columnar structure and is telescopic along its axial direction, and the expansion member is filled in the water-through telescopic sleeve; The water-through telescopic sleeve comprises an upper sleeve and a lower sleeve, the upper sleeve and the lower sleeve are both arranged in a barrel shape, the barrel openings of the upper sleeve and the lower sleeve are arranged oppositely and coaxially sleeved, one end of the barrel bottom of the upper sleeve and the lower sleeve is respectively abutted against the support net and the lower sheet layer, and at the same time, the expansion member is arranged in a space formed by the combination of the upper sleeve and the lower sleeve, and the upper sleeve is arranged outside the lower sleeve, the outer side wall of the upper sleeve is arranged in an inverted frustum shape, a limited position edge is arranged outside the barrel opening of the lower sleeve, the diameter of the limited position edge is larger than the inner diameter of the barrel opening of the upper sleeve and smaller than the diameter of the barrel bottom of the upper sleeve, and a sealing ring is arranged between the barrel opening of the lower sleeve and the inner wall of the upper sleeve; The upper sleeve and the lower sleeve are both made of hard plastic, and the expansion piece is made of water-absorbent nylon; The water-through hole comprises an upper large hole, a lower small hole and a plurality of auxiliary holes, the upper large hole and the lower small hole are connected to each other, the upper large hole passes through the top surface of the upper sheet material layer, the lower small hole passes through the bottom surface of the upper sheet material layer and the supporting net, a step is formed between the bottom of the upper large hole and the opening of the lower small hole, a plurality of the auxiliary holes are arranged on the step and pass through the bottom surface of the upper sheet material layer and the supporting net, a filter net is installed in the upper large hole, a circle of upwardly extending retaining edges is arranged on the step and at the opening of the lower small hole, the retaining edges separate the lower small hole and the plurality of the auxiliary holes into two areas; A circle of support plates are provided on the bottom of the barrel of the upper sleeve and the lower sleeve and on the outer side thereof, and the parts of the support net and the lower sheet layer for the contact of the expansion and telescopic parts are provided with embedding grooves corresponding to the support plates, and the grooves of the embedding grooves are of a contracted structure, and the support plates are embedded in the corresponding embedding grooves. At the same time, a water hole is provided in the center of the support plate of the upper sleeve, and the water hole is vertically opposite to the lower small hole, and the periphery of the support plate of the upper sleeve is provided with inlet and outlet holes corresponding to the auxiliary holes one by one.

2. The pre-laid EPDM self-adhesive membrane waterproofing coiled material according to claim 1, characterized in that: The support net includes transverse ribs and longitudinal ribs, the transverse ribs and the longitudinal ribs are formed in a crisscross manner, and an expansion and contraction member is provided at the intersection of each transverse rib and the longitudinal rib.

3. The pre-laid EPDM self-adhesive membrane waterproofing coiled material according to claim 2, characterized in that: The support net is made of EPDM rubber, and the support net is protrudingly arranged on the bottom surface of the upper sheet layer.

4. The pre-laid EPDM self-adhesive membrane waterproofing coiled material according to claim 2 or 3, characterized in that: The space between the upper sheet material layer and the lower sheet material layer and formed by the interweaving of the transverse ribs and the longitudinal ribs is filled with sponge.

5. The pre-laid EPDM self-adhesive membrane waterproofing coiled material according to claim 2, characterized in that: The transverse reinforcement of the support net is arranged along the width direction of the EPDM base layer, the longitudinal reinforcement is arranged along the length direction of the EPDM base layer, and the thickness of the transverse reinforcement is greater than the thickness of the longitudinal reinforcement.

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