A device for sealing temperature shrinkage cracks in granite floors

Abstract

The utility model relates to a ground temperature shrinkage joint device for granite, which comprises an "I" shaped plate with a first transverse hook-shaped rib in the middle, an inverted "L" shaped plate with its horizontal upper limb extending above the "I" shaped plate, a first interval reserved between its vertical lower limb and the first transverse hook-shaped rib, a second transverse hook-shaped rib in the middle of the vertical lower limb, the second transverse hook-shaped rib being connected with the first transverse hook-shaped rib, an upper cavity and a lower cavity being separated between the "I" shaped plate and the inverted "L" shaped plate, a second interval reserved between the second transverse hook-shaped rib and the "I" shaped plate, and a sealing rubber strip filled in the upper cavity and the lower cavity between the "I" shaped plate and the inverted "L" shaped plate. The utility model is beneficial to the deformation of the granite floor, and the expansion joint can adapt to the deformation of the bottom cement mortar leveling layer and the concrete cushion layer without surface peeling and warping.

Description

Technical Field

[0001] The utility model relates to the field of expansion joint construction, in particular to a ground temperature shrinkage joint device for granite. Background Art

[0002] The conventional method for temperature expansion joints uses rubber strips. Due to repeated cleaning of the ground, the rubber strips are severely soiled and cannot be cleaned thoroughly, resulting in poor decorative effects.

[0003] Direct splicing joints are prone to problems such as height differences and left - right misalignments, which are likely to become dead corners for cleaning.

[0004] Due to the huge flow of people in high - speed railway stations, the ground bears high - frequency and high - intensity dynamic loads (such as pedestrians, luggage, cleaning equipment, etc.). If the rubber strip has poor quality and warps, it is likely to affect the aesthetics and comfort of use, and it is also difficult to maintain in the later stage. Moreover, since the coefficient of thermal expansion of granite floors is usually less than that of cement mortar leveling layers and concrete cushions, it is easy to cause the surface rubber strip to fall off and warp. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a ground temperature shrinkage joint device for granite, which is convenient for adapting to the temperature deformation problem when the coefficients of thermal expansion of granite floors, cement mortar leveling layers and concrete cushions are inconsistent. When the granite floor is not deformed, the expansion joint can also adapt to the deformation of the bottom cement mortar leveling layer and concrete cushion without the surface of the expansion joint falling off or warping.

[0006] To solve the above problems, a ground temperature shrinkage joint device for granite is adopted, which includes:

[0007] An "I" - shaped plate with a first horizontal hook - shaped rib in the middle.

[0008] An inverted "L" - shaped plate, whose upper horizontal limb extends above the "I" - shaped plate, and a first gap is reserved between its lower vertical limb and the first horizontal hook - shaped rib. A second horizontal hook - shaped rib is provided in the middle of its lower vertical limb. The second horizontal hook - shaped rib is hooked to the first horizontal hook - shaped rib, separating an upper cavity and a lower cavity between the "I" - shaped plate and the inverted "L" - shaped plate. A second gap is reserved between the second horizontal hook - shaped rib and the "I" - shaped plate.

[0009] A sealing rubber strip, which is filled in the upper cavity and the lower cavity between the "I" - shaped plate and the inverted "L" - shaped plate.

[0010] With such a structure, when the cement mortar leveling layer and the concrete cushion layer under the granite floor are deformed under the influence of temperature stress, the "|" - shaped plate can be compressed towards the inverted "L" - shaped plate, and the upper horizontal limb of the inverted "L" - shaped plate can remain stationary, still maintaining a tight joint with the granite floor. The internal sealing strip provides the effect of resilience and adaptation to deformation, and can provide vertical support force to the upper horizontal limb of the inverted "L" - shaped plate to enhance the ability of the upper horizontal limb of the "L" - shaped plate to resist bending under compression.

[0011] As a further improvement of the present utility model, a first folding edge is provided on the lower side of the "|" - shaped plate 1, and a second folding edge is provided on the lower side of the vertical lower limb of the inverted "L" - shaped plate, and the first folding edge is opposite to the second folding edge.

[0012] With such a structure, the first folding edge and the second folding edge properly limit the sealing strip. For example, if the first folding edge and the second folding edge are appropriately narrowed, it can prevent the bottom sealing strip from slipping during installation.

[0013] As a further improvement of the present utility model, the sealing strip is made of silicone sealing strip.

[0014] With such a structure, by selecting a high - quality silicone sealing strip, the elastic recovery rate is extremely high (>90%), it is resistant to high and low temperatures (-40°C - 150°C), has a long service life, and can meet the temperature shrinkage deformation effect in a complex environment.

[0015] As a further improvement of the present utility model, the "|" - shaped plate, the first transverse hook - shaped rib and the first folding edge are integrally formed by alloy profiles; the inverted "L" - shaped plate, the second transverse hook - shaped rib and the second folding edge are integrally formed by alloy profiles.

[0016] With such a structure, the integrally formed structure is beneficial to improving the assembly efficiency.

[0017] As a further improvement of the present utility model, a first gap is reserved in the height direction between the first transverse hook - shaped rib and the second transverse hook - shaped rib.

[0018] With such a structure, there is space for up - and - down deformation to adapt to the deformation of the profile itself.

[0019] As a further improvement of the present utility model, a second gap is reserved in height between the upper horizontal limb of the inverted "L" - shaped plate and the "|" - shaped plate.

[0020] With such a structure, the sealing strip jacks up the upper horizontal limb of the inverted "L" - shaped plate, which can reduce the friction force generated by relative sliding.

[0021] As a further improvement of the utility model, the sealing strip adopts a hollow trapezoidal structure, the maximum width of which is wider than the distance between the first folding edge and the second folding edge. The sealing strips are arranged symmetrically up and down, with their wide bottoms approaching each other and their narrow bottoms moving away from each other.

[0022] With such a structure, the hollow trapezoidal structure is conducive to compression and contraction on both sides.

[0023] As a further improvement of the utility model, deformation grooves are arranged at intervals on the upper bottom and the wide bottom of the sealing strip.

[0024] With such a structure, when the hollow trapezoidal structure is compressed and deformed, the middle part is prevented from bulging.

[0025] The sealing strip for controlling thermal shrinkage deformation of the utility model is placed inside and does not leak outside, so there is no problem of dirt caused by repeated cleaning of the strip. The metal finish is easy to clean, and the decorative effect is better maintained.

[0026] Hook connection makes the ground thermal shrinkage joint form a whole and is not easy to warp. The joint is tight and is not easy to have offsets or misaligned joints, and it is not easy to form cleaning dead corners, ensuring safety, comfort and aesthetics, and effectively solving the thermal deformation problem caused by the inconsistent thermal expansion coefficients of granite floor, cement mortar leveling layer and concrete cushion layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of an embodiment.

[0028] Figure 2 It is an axonometric drawing of an embodiment.

[0029] Figure 3 It is an installation drawing of the sealing strip with deformation grooves.

[0030] Figure 4 It is a schematic structural diagram of the installation structure of the expansion joint.

[0031] Reference numerals: 1, "|" - shaped plate; 101, first transverse hook - shaped rib; 102, first folding edge;

[0032] 2, inverted "L" - shaped plate; 201, second transverse hook - shaped rib; 202, second folding edge;

[0033] 3, first interval; 4, upper cavity; 5, lower cavity; 6, second interval; 7, sealing strip; 8, first gap; 9, second gap; 10, deformation groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying 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, and therefore should not be construed as a limitation to the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it 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.

[0036] Embodiment 1

[0037] As Figures 1-4 shown, a ground temperature shrinkage joint device for granite includes:

[0038] An "I"-shaped plate 1, which has a first horizontal hook-shaped rib 101 in the middle.

[0039] An inverted "L"-shaped plate 2, the upper horizontal limb of which extends into the upper part of the "I"-shaped plate 1, and a first interval 3 is reserved between the lower vertical limb of it and the first horizontal hook-shaped rib 101. A second horizontal hook-shaped rib 201 is provided in the middle of the lower vertical limb of it. The second horizontal hook-shaped rib 201 is hooked to the first horizontal hook-shaped rib 101, separating an upper cavity 4 and a lower cavity 5 between the "I"-shaped plate 1 and the inverted "L"-shaped plate 2. A second interval 6 is reserved between the second horizontal hook-shaped rib 201 and the "I"-shaped plate 1.

[0040] A sealing strip 7, which is filled in the upper cavity 4 and the lower cavity 5 between the "I"-shaped plate 1 and the inverted "L"-shaped plate 2.

[0041] With such a structure, when the cement mortar leveling layer and the concrete cushion layer under the granite floor are deformed under the influence of temperature stress, the "|" - shaped plate 1 can be compressed towards the inverted "L" - shaped plate 2. The upper limb of the inverted "L" - shaped plate 2 in the transverse direction can remain stationary, still maintaining a tight joint with the granite floor. The internal sealing strip provides the effect of resilience and adaptation to deformation, and can provide vertical support force to the upper limb of the inverted "L" - shaped plate 2 in the transverse direction to enhance the ability of the upper limb of the "L" - shaped plate 2 to resist bending under pressure.

[0042] In this embodiment, a first folded edge 102 is provided on the lower side of the "|" - shaped plate 1, and a second folded edge 202 is provided on the lower side of the vertical lower limb of the inverted "L" - shaped plate 2. The first folded edge 102 and the second folded edge 202 are opposite to each other.

[0043] With such a structure, the first folded edge 102 and the second folded edge 202 properly limit the sealing strip 7. For example, if the first folded edge 102 and the second folded edge 202 are appropriately narrowed, it can prevent the sealing strip 7 at the bottom from slipping during installation.

[0044] In this embodiment, the sealing strip 7 is made of a silicone sealing strip.

[0045] With such a structure, by selecting a high - quality silicone sealing strip, it has an extremely high elastic recovery rate (>90%), is resistant to high and low temperatures (-40°C - 150°C), has a long service life, and can meet the temperature shrinkage deformation effects in complex environments.

[0046] In this embodiment, the "|" - shaped plate 1, the first transverse hook - shaped rib 101, and the first folded edge 102 are integrally formed by alloy profiles; the inverted "L" - shaped plate 2, the second transverse hook - shaped rib 201, and the second folded edge 202 are integrally formed by alloy profiles.

[0047] With such a structure, the integrally formed structure is beneficial to improving the assembly efficiency.

[0048] In this embodiment, a first gap 8 is reserved in the height direction between the first transverse hook - shaped rib 101 and the second transverse hook - shaped rib 201.

[0049] With such a structure, there is a space for up - and - down deformation to adapt to the deformation of the profile itself.

[0050] In this embodiment, a second gap 9 is reserved in height between the upper limb of the inverted "L" - shaped plate 2 in the transverse direction and the "|" - shaped plate 1.

[0051] With such a structure, the sealing strip 7 jacks up the upper limb of the inverted "L" - shaped plate 2, which can reduce the frictional force generated by relative sliding.

[0052] In this embodiment, the sealing strip 7 adopts a hollow trapezoidal structure, and its maximum width is wider than the distance between the first fold 102 and the second fold 202. The sealing strip 7 is arranged symmetrically from top to bottom, with its wide bottoms close to each other and its narrow bottoms far apart.

[0053] This hollow trapezoidal structure is advantageous for compression and contraction on both sides.

[0054] In this embodiment, deformation grooves 10 are provided at intervals on the upper bottom and the wide bottom of the sealing strip 7.

[0055] This structure is designed to prevent the central part from bulging out when the hollow trapezoidal structure is compressed and deformed.

[0056] The sealing strip of this invention, which controls temperature shrinkage and deformation, is placed inside and does not leak out. It eliminates the problem of dirt caused by repeated cleaning of the sealing strip, and the metal finish is easy to clean, thus maintaining a better decorative effect.

[0057] The interlocking connection ensures that the ground expansion joints form a unified whole, preventing warping. The tight joints prevent misalignment and create cleaning dead corners, guaranteeing safety, comfort, and aesthetics. It effectively solves the problem of thermal deformation caused by the inconsistent thermal expansion coefficients of granite flooring, cement mortar leveling layer, and concrete subbase.

[0058] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A granite floor thermal shrinkage joint device, characterized in that... Comprising: An "I"-shaped plate (1), having a first transverse hook-shaped rib (101) in its middle part; An inverted "L"-shaped plate (2), whose upper horizontal limb extends above the "I"-shaped plate (1), with a first gap (3) reserved between its lower vertical limb and the first transverse hook-shaped rib (101), having a second transverse hook-shaped rib (201) in the middle part of its lower vertical limb, the second transverse hook-shaped rib (201) being hooked to the first transverse hook-shaped rib (101), separating an upper cavity (4) and a lower cavity (5) between the "I"-shaped plate (1) and the inverted "L"-shaped plate (2), and a second gap (6) being reserved between the second transverse hook-shaped rib (201) and the "I"-shaped plate (1); A sealing rubber strip (7), which is filled in the upper cavity (4) and the lower cavity (5) between the "I"-shaped plate (1) and the inverted "L"-shaped plate (2).

2. The granite floor thermal contraction joint device according to claim 1, characterized in that... A first hem (102) is provided on the lower side of the "I"-shaped plate (1), and a second hem (202) is provided on the lower side of the lower vertical limb of the inverted "L"-shaped plate (2), and the first hem (102) is opposite to the second hem (202).

3. The granite floor thermal contraction joint device according to claim 1, characterized in that... The sealing rubber strip (7) adopts a silicone sealing rubber strip.

4. The granite floor thermal contraction joint device according to claim 1, characterized in that... The "I"-shaped plate (1), the first transverse hook-shaped rib (101) and the first hem (102) are integrally formed by an alloy profile; the inverted "L"-shaped plate (2), the second transverse hook-shaped rib (201) and the second hem (202) are integrally formed by an alloy profile.

5. The granite floor thermal contraction joint device according to claim 1, characterized in that... A first gap (8) is reserved in the height direction between the first transverse hook-shaped rib (101) and the second transverse hook-shaped rib (201).

6. The granite floor thermal contraction joint device according to claim 1, characterized in that... A second gap (9) is reserved in height between the upper horizontal limb of the inverted "L"-shaped plate (2) and the "I"-shaped plate (1).

7. The granite floor thermal contraction joint device according to claim 1, characterized in that... The sealing rubber strip (7) adopts a hollow trapezoidal structure, its maximum width being wider than the distance between the first hem (102) and the second hem (202), the sealing rubber strip (7) being arranged symmetrically up and down, its wide bottoms being pulled closer to each other, and its narrow bottoms being pulled farther apart from each other.

8. The granite floor thermal contraction joint device according to claim 7, characterized in that... Deformation grooves (10) are arranged at intervals on the upper bottom and the wide bottom of the sealing rubber strip (7).

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