Mortise and tenon parting structure for thin-layer kerf ground

Abstract

The utility model relates to a mortise and tenon parting structure for a thin-layer kerf ground. The mortise and tenon parting structure comprises a first template and a second template which are oppositely arranged at an interval and are fixed on a ground layer, the first template and the second template are arranged at an interval to form a parting part; a plurality of easily broken screws are connected between the first template and the second template; the first template comprises at least one third bending part which is formed by extending inwards in a direction far away from the second template in a concave manner; and the second template comprises a fourth bending part which is formed by protruding and extending towards the direction close to the first template and is positioned on the inner side of the third bending part. According to the utility model, the traditional angle steel and steel plate are transformed to form the permanent parting template with the mortise and tenon process, so that the problems of slab staggering, hollowing, edge breakage and the like caused by thin-layer concrete parting are solved. The concrete expansion joint has a concrete corner protection function, increases anchoring, protects the expansion part and the fragile edge of the concrete terrace, has ultrahigh durability and an integral force transmission function, and can transmit the load from one side of the expansion joint to the other side under the action of the vertical load.

Description

Technical Field

[0001] The utility model relates to the technical field of floor, in particular to a tenon joint and slit structure for a thin-layer slit-cut ground. Background Art

[0002] For a thin-layer floor, it is usually necessary to cut slits to avoid floor cracking and hollowing. The appropriate spacing of floor slits is generally carefully determined according to the characteristics of the floor materials used and the purpose of slitting. Generally speaking, setting the slit spacing at about 4 - 6 meters is a reasonable choice to ensure that the floor materials are not prone to excessive deformation or cracks when environmental factors such as temperature and humidity change, thereby effectively extending the service life of the floor.

[0003] For a concrete floor, the design of the slit spacing particularly needs to consider the shrinkage characteristics of the concrete and the influence of temperature changes. To prevent cracks caused by concrete shrinkage, the slit spacing should usually be less than the slab span of the concrete. Therefore, at a spacing of about 4 - 6 meters, the floor materials are properly protected from damage caused by excessive deformation or cracks.

[0004] In addition, the depth and width of the slits are also factors that cannot be ignored. Generally speaking, the slit depth should be less than 1 / 3 of the slab thickness to ensure that the slits do not weaken the overall performance of the floor. At the same time, the slit width also needs to be appropriately controlled to avoid loosening or damage of the materials in the slit area.

[0005] When determining the floor slit spacing, it is also necessary to fully consider the use environment and intended use of the floor. For example, if the floor will bear the pressure of parking and transporting heavy equipment or vehicles, the slit spacing should be appropriately reduced to prevent cracks or damage caused by excessive deformation.

[0006] Based on this, the more commonly used technology in the prior art is to treat the floor by slitting. The traditional building ground 4 - meter or 6 - meter slit system is adopted for the bearing floor of the domestic building first floor. The 4 - meter or 6 - meter slits bring more risks of concrete edge collapse caused by slitting. Over time, such edge collapse problems of the slits indirectly affect the travel of automated robots and the safety risk of forklift operation, and increase the damage rate of tires.

[0007] Another treatment method is to use traditional angle steel and steel plates to connect with cement, which cannot achieve good adhesion, the flatness is not enough, the thickness of the angle steel is insufficient, and the angle steel deforms and sinks during use, damaging the integrity of the cement. Over time, irreparable cracking, powdering, hollowing, deformation, and loud noise occur, affecting the safety management of forklift operators on site.

[0008] How to reduce the safety hazards caused by slitting is a technical problem that urgently needs to be solved in this field. Summary of the Utility Model

[0009] To solve the above problems of the prior art, the present utility model provides a thin-layer cut joint ground mortise and tenon joint structure.

[0010] To achieve the above object, the main technical solutions adopted by the present utility model include:

[0011] A thin-layer cut joint ground mortise and tenon joint structure, including a first template and a second template which are relatively spaced apart and fixed on the ground layer; the first template and the second template are spaced apart to form a joint part; a plurality of easily breakable screws are connected between the first template and the second template; the first template includes at least one third bending part which extends inwards concave towards the direction away from the second template; the second template includes a fourth bending part which extends outwards convex towards the direction close to the first template and is located inside the third bending part.

[0012] Further, the width of the joint part is 20 - 30 mm.

[0013] Further, the top of the first template extends towards the direction away from the second template to form a first bending part; the top of the second template extends towards the direction away from the first template to form a second bending part.

[0014] Further, on one side of the first template away from the second template and one side of the second template away from the first template, a plurality of anchoring hooks fixed on the ground layer are provided at intervals along the length direction of the joint part.

[0015] Further, the anchoring hooks are fixedly connected with a connecting piece; the length direction of the connecting piece is consistent with the length direction of the joint part.

[0016] Further, the distance between the relatively arranged anchoring hooks is 300 - 500 mm.

[0017] Further, a planed ground layer, an interface layer, a fiber-reinforced concrete layer, and a surface layer are sequentially provided on the top of the ground layer from bottom to top to form a thin-layer ground; the first bending part and the second bending part are attached to the top of the surface layer to protect the joint corners.

[0018] Further, the thickness of the planed ground layer is 3 - 5 mm.

[0019] Further, the fiber-reinforced concrete layer is composed of three layers of fiber-reinforced concrete layers.

[0020] Further, the thickness of the thin-layer ground is 50 - 60 mm.

[0021] The beneficial effects of the present utility model are as follows: By transforming traditional angle steel and steel plates, a permanent split template with mortise and tenon technology is formed, which is simple, fast, and efficient in construction, and solves problems such as stepped joints, hollowing, and chipping at the split joints of thin-layer concrete. It has the function of protecting the corners of concrete, increasing anchorage, and protecting the vulnerable edges at the expansion joints of concrete floors. It has extremely high durability and an overall load transfer function. Under the action of vertical loads, the load can be transferred from one side of the expansion joint to the other side. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is a top view of the structure of the present utility model;

[0025] Description of reference numerals: 100, first template; 110, first bending part; 120, third bending part; 200, second template; 210, second bending part; 220, fourth bending part; 101, split joint part; 102, breakable screw; 300, anchoring hook; 310, connecting piece; 400, ground layer; 410, planed ground layer; 420, interface layer; 430, fiber-reinforced concrete layer; 440, surface layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] For the embodiments, please refer to Figure 1-2 as shown in

[0030] A thin-layer cut joint ground mortise joint structure. The thin-layer cut joint ground described in the present utility model refers to a thin-layer ground with a thickness of 50 - 100 mm in the prior art. Usually, it is necessary to prevent cracking caused by concrete shrinkage stress through the means of cutting joints. And through the joint structure of the present utility model, it can be applied to this kind of floor without cutting joints, and the effect of jointing is realized by using a prefabricated template structure, effectively transmitting stress, avoiding floor cracking, and at the same time effectively reducing various problems such as hollowing, edge curling, and cracking. The structure of the present utility model is preferably applied to the scenario where the thickness of the thin-layer ground is 50 - 60 mm.

[0031] The joint structure of the present utility model includes a first template 100 and a second template 200 which are relatively spaced apart and fixed on the ground layer 400; the first template 100 and the second template 200 are spaced apart to form a joint part 101. The function of the joint part 101 is equivalent to the gap formed by cutting joints in the prior art. The present utility model is realized by the prefabricated method of the first template 100 and the second template 200, which can avoid the problem of edge chipping caused by subsequent cutting joints, and at the same time omit the process of secondary cutting joints.

[0032] A number of breakable screws 102 are connected between the first template 100 and the second template 200. On the one hand, the breakable screws 102 are used to connect the first template 100 and the second template 200, so as to keep a reasonable distance therebetween and increase the strength. On the other hand, after the installation is completed, the breakable screws 102 can adapt to the shrinkage stress of the concrete and the changes of thermal expansion and contraction. When the breakable screws 102 are under greater stress, they will automatically break, without affecting the structural stability of the concrete layer. A plurality of breakable screws 102 are arranged in the whole structure, such as Figure 1 , specifically, it is a schematic cross-sectional view applied to the floor. Three breakable screws 102 are arranged at intervals in the cross-section, such as Figure 2 In the top view shown in, a plurality of breakable screws 102 are also arranged at intervals in the length direction of the joint part 101;

[0033] The first template 100 includes at least one third bending part 120 formed by concave extension in a direction away from the second template 200; the second template 200 includes a fourth bending part 220 formed by convex extension in a direction close to the first template 100 and located inside the third bending part 120. Through the cooperation of the third bending part 120 and the fourth bending part 220, a mortise and tenon structure is formed. When it is applied to the floor, the vertical load can be transmitted between the concrete layers on both sides through the structures of the third bending part 120 and the fourth bending part 220, thereby effectively increasing the structural strength and stability at the joint. The transmission of the vertical load can significantly increase the service life of the concrete layer, and has a good inhibitory effect on the problems of hollowing, edge warping and cracking caused by thin concrete layers, insufficient strength or grade at the joint in the prior art. The application of the plate force transmission measure enables the floor plates on both sides of the joint structure to be in a separated state while realizing the mechanism of force transmission. The joint structure solves the cracking problem caused by shrinkage and lateral displacement. The mortise and tenon structure realizes the transmission of the vertical load, enabling the two originally separated floor slabs to jointly bear the vertical load, effectively improving the durability and stability. When equipment such as forklifts and robots pass through the joint, the joint structure can also bear high loads; since the floor thickness applied in the present utility model is usually relatively thin, and the more common application range is about 50-60 mm, in order to enhance the strength of the mortise and tenon structure and reduce the processing difficulty, usually only one third bending part 120 and one fourth bending part 220 are arranged in the middle; in another embodiment, when the structure of the present utility model is applied to a thicker floor, several more third bending parts 120 and fourth bending parts 220 can also be selectively arranged; such as Figure 1 As shown, in the embodiment, the third bending part 120 is a groove structure formed by right-angle bending, mainly for the convenience of processing, with low welding / bending difficulty and convenient operation at a thickness of 50-60 mm; in another embodiment, the shape of the third bending part 120 can also be semi-circular, wavy, triangular and other shapes;

[0034] The first template 100 and the second template 200 are usually formed by bending flat steel or welding multiple flat steels / steel plates. Compared with concrete, they have better toughness. Wrapping the concrete at the joint can enhance the impact resistance at the joint structure. Especially when a vehicle passes by, in the prior art, the concrete in the cut joint structure will crack under long-term impact, causing damage to the floor. However, the present utility model strengthens the concrete structure at the joint through the first template 100 and the second template 200, and solves this problem well. The concrete is adapted to the shapes of the first template 100 and the second template 200 by pouring, and has good adhesion to the first template 100 and the second template 200. The first template 100 and the second template 200 of the present utility model are non-detachable templates and are used permanently together with the concrete during pouring.

[0035] In an embodiment of the present utility model, the width of the joint part 101 is 20 - 30 mm.

[0036] In an embodiment of the present utility model, the top of the first template 100 extends away from the second template 200 to form a first bending part 110; the top of the second template 200 extends away from the first template 100 to form a second bending part 210; the first bending part 110 and the first template 100 form a wrapping structure for the concrete corners at the joint. When equipment such as a forklift passes by, it can prevent the edges of the concrete corners from chipping, increasing strength and durability. Further, the structure of the first bending part 110 is arranged on the top of the surface layer 440, and the bottom of the first template 100 is fixed to the ground layer 400. The "bow" - shaped structure formed by the first template 100 as a whole can support the concrete layer, reduce the settlement of the concrete layer, and also help prevent the cracking of the concrete. Similarly, the second bending part 210 of the second template 200 can also prevent the edges of the concrete corners from chipping and reduce the settlement of the concrete.

[0037] In an embodiment of the present utility model, on the side of the first template 100 away from the second template 200 and on the side of the second template 200 away from the first template 100, a number of anchoring hooks 300 fixed to the ground layer 400 are provided at intervals along the length direction of the joint part 101; the length direction of the joint part 101 is as Figure 2The vertical direction in it; the anchoring hooks 300 are arranged at intervals between the first formwork 100 and the second formwork 200, which are used to strengthen the anchoring effect on the newly poured concrete layer, further prevent the occurrence of hollowing and cracking, and strengthen the bearing capacity of the vertical load of the concrete layer through the interaction between the anchoring hooks 300 and the concrete. The combination of the anchoring hooks 300 and the mortise and tenon mechanism significantly strengthens the structural strength at the joint; in another embodiment, the anchoring hooks 300 are fixedly connected to the connecting piece 310, and the length direction of the connecting piece 310 is the same as the length direction of the joint part 101. Through the connecting piece 310, the anchoring hooks 300 and the connecting piece 310 can form a structure similar to a steel mesh, enhancing the strength of the concrete. At the same time, relatively speaking, the cost of this structure is lower; the connecting piece 310 is usually a steel bar; the anchoring hooks 300 and the connecting piece 310 can be fixed by welding or binding;

[0038] In one embodiment, the spacing between the relatively arranged anchoring hooks 300 is set to 300 - 500 mm, which has a good strengthening effect on the first formwork 100 and the second formwork 200, and the spacing between the anchoring hooks 300 arranged on the same side is set according to the size of the actual laying site, and can also be set to 300 - 500 mm;

[0039] In one embodiment, the top of the ground layer 400 is successively provided with a planed ground layer 410, an interface layer 420, a fiber - reinforced concrete layer 430, and a surface layer 440 from bottom to top to form a thin - layer ground; the thickness of the planed ground layer 410 is 3 - 5 mm; the interface layer 420 can usually be a common interface adhesive. For example, before pouring concrete, the base layer (planed ground layer 410) is wetted, and a new type of polyvinyl alcohol interface adhesive is applied. By increasing the interface adhesive, the planed ground layer 410 and the fiber - reinforced concrete layer 430 are closely attached, effectively reducing the hollowing phenomenon of the fiber - reinforced concrete layer 430. The fiber - reinforced concrete layer 430 is composed of three layers of fiber - added concrete layers and is poured in three times. The fiber - reinforced concrete layer is self - leveling cement with polyvinyl fibers added to improve the crack resistance of the surface layer 440, improve the toughness of the self - leveling cement, and enhance the flexural strength of the self - leveling cement. Pouring in three times can ensure the quality of the self - leveling cement; the thickness of the thin - layer ground is 50 - 60 mm; in this embodiment, through the improvement of the concrete layer structure, the strength of the concrete itself can be increased, so that it has a better use effect when cooperating with the joint structure;

[0040] The slit structure of the present utility model replaces the traditional cutting seam structure with a slit structure, achieving a floor with fewer cutting seams overall. It reduces safety problems such as seam edge chipping caused by cutting seams and the resulting forklift safety issues, robot malfunctions, and high tire breakage rates. It optimizes the pain point in the building ground design code GB50037 - 2013 regarding the multiple seam edge chippings in the 4 - meter or 6 - meter cutting seams of the first - layer bearing floor. It brings high efficiency, speed, aesthetics, load - bearing capacity, and strength to the user unit, while also taking into account the need for fewer floor seams and solving various safety problems caused by seam edge chipping due to cutting seams.

[0041] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent transformation made using the content of the specification and drawings of the present utility model, or directly or indirectly applied in related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A mortise and tenon joint structure for a thin-layer cut-slit floor, characterized in that: The invention comprises a first template (100) and a second template (200) which are arranged at a relative interval and fixed on a ground layer (400); the first template (100) and the second template (200) are arranged at a interval to form a slit portion (101); a plurality of easily breakable screws (102) are connected between the first template (100) and the second template (200); the first template (100) comprises at least one third bent portion (120) which is formed by extending inwardly in a direction away from the second template (200); and the second template (200) comprises a fourth bent portion (220) which is formed by extending outwardly in a direction close to the first template (100) and is located inside the third bent portion (120).

2. The mortise and tenon joint structure for thin-layer slit floor according to claim 1, characterized in that: The width of the split portion (101) is 20-30 mm.

3. The mortise and tenon joint structure for thin-layer slit floor according to claim 1, characterized in that: The top of the first template (100) extends in a direction away from the second template (200) to form a first bending portion (110); the top of the second template (200) extends in a direction away from the first template (100) to form a second bending portion (210).

4. The mortise and tenon joint structure for thin-layer slit floor according to claim 1, characterized in that: A plurality of anchor hooks (300) fixed to the ground layer (400) are provided at intervals along the length direction of the split portion (101) on a side of the first template (100) away from the second template (200) and on a side of the second template (200) away from the first template (100).

5. The mortise and tenon joint structure for thin-layer slit floor according to claim 4, characterized in that: The anchor hook (300) is fixedly connected to the connecting piece (310); the length direction of the connecting piece (310) is consistent with the length direction of the slit portion (101).

6. The mortise and tenon joint structure for thin-layer slit floor according to claim 4, characterized in that: The spacing between the relatively arranged anchor hooks (300) is 300-500 mm.

7. The mortise and tenon joint structure for thin-layer slit floor according to claim 3, characterized in that: The top of the ground layer (400) is provided with an iron planed ground layer (410), an interface layer (420), a fiber reinforced concrete layer (430), and a surface layer (440) in order from bottom to top to form a thin layer of ground; the first bent portion (110) and the second bent portion (210) are attached to the top of the surface layer (440) to protect the corners of the seams.

8. The mortise and tenon joint structure for thin-layer slit floor according to claim 7, characterized in that: The thickness of the iron planing ground layer (410) is 3-5 mm.

9. The mortise and tenon joint structure for thin-layer slit floor according to claim 7, characterized in that: The fiber reinforced concrete layer (430) comprises three fiber reinforced concrete layers.

10. The mortise and tenon joint structure for thin-layer slit floor according to claim 7, characterized in that: The thickness of the thin layer of ground is 50-60 mm.

Images