Insulation board and connecting piece

Abstract

The invention relates to the field of heat preservation plate connecting pieces, in particular to a heat preservation plate and a connecting piece, the heat preservation plate comprises the heat preservation plate, a plurality of flow guide grooves are formed in the upper surface of the heat preservation plate from front to back at equal intervals, inserting grooves are transversely formed in the front side of the heat preservation plate, and protruding blocks matched with the inserting grooves are integrally formed in the heat preservation plate; the two heat preservation plates can be combined by splicing the protruding blocks and the inserting grooves, connecting pieces are evenly arranged on the surfaces of the heat preservation plates, and the heat preservation plates and the steel mesh are installed through the connecting pieces. The connecting piece comprises a connecting rod inserted into the outer wall of the heat preservation plate, a plurality of protruding edges are continuously arranged on the upper side and the lower side of the outer wall of the connecting rod, and the bottom of the outer wall of the connecting rod is sleeved with a supporting assembly. And the heat bridge effect caused by traditional connecting pieces such as metal screws can be blocked, so that the heat loss is remarkably reduced, the mounting procedure is greatly simplified, the mounting efficiency is remarkably improved, it can be ensured that the position of the steel mesh is accurate in the concrete pouring process, and the firmness and stability of the wall are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal insulation board connectors, in particular to a thermal insulation board and a connector. Background Art

[0002] Insulation board, a core material in the field of building energy conservation, is typically made from polystyrene resin as a base material, supplemented by other raw materials and polymers. It is produced through heating, blending, catalyst injection, and extrusion molding to form a rigid foam plastic board with a closed-cell structure. Its notable properties are moisture resistance, waterproofness, and a certain degree of mechanical strength. During the construction of building insulation systems, insulation boards often need to work in conjunction with steel mesh, with connectors ensuring a reliable connection between the two to create a composite insulation wall. The traditional connection solution uses a combination of screws, upper and lower fasteners, and nuts. During installation, the screws penetrate the pre-set holes in the insulation board, the upper and lower fasteners are fitted over the screws, the lower fastener is locked in place by tightening the nut, and the steel mesh is pressed and secured to the upper fastener by the nut. This solution has the following technical drawbacks.

[0003] Installation efficiency bottleneck: The threaded installation method requires multiple tightening of the nut to complete the positioning, which is a cumbersome and time-consuming process. This is particularly problematic in large-scale construction scenarios, where low operational efficiency is a prominent issue. Defects in thermal insulation performance: Due to structural limitations, the insulation panels cannot overlap when spliced. The metal screws act as thermal bridges, causing a large amount of heat from the wall to be lost through the gaps and screws, significantly reducing the energy-saving effect of the insulation system. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a thermal insulation board and a connector to solve the problems of low installation efficiency and poor thermal insulation effect raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, an embodiment of the present invention provides the following technical solution: an insulation board, comprising an insulation board, a plurality of guide grooves being provided on the upper surface of the insulation board at equal intervals from front to back, a slot being provided laterally on the front side of the insulation board, the insulation board being integrally formed with a protrusion matching the slot, the protrusion and the slot being spliced ​​to combine two insulation boards, the surface of the insulation board being evenly provided with connecting pieces, and the insulation board being installed with the steel mesh through the connecting pieces.

[0006] As a further solution of the present invention, the guide groove opened on the surface of the insulation board is a straight groove, a dovetail groove or a T-shaped groove, the slot on the insulation board is a straight groove or an L-shaped groove, and the protrusion matches the shape of the slot.

[0007] As a further solution of the present invention, the connecting rod is made of fiberglass or basalt.

[0008] As a further solution of the present invention, the connecting part includes a connecting rod inserted into the outer wall of the insulation board, and a plurality of ridges are continuously arranged on the upper and lower sides of the outer wall of the connecting rod. The bottom of the outer wall of the connecting rod is sleeved with a support assembly, and the support assembly is positioned by using the ridges. The connecting rod supports the bottom of the insulation board, and the top of the outer wall of the connecting rod is sleeved with a first positioning assembly or a second positioning assembly. The steel mesh is fixed by the first positioning assembly or the second positioning assembly, and the steel mesh and the insulation board are installed equidistantly.

[0009] As a further solution of the present invention, a plurality of the ridges are symmetrically distributed on the outer wall of the connecting rod, and the side surfaces of the ridges are inclined surfaces.

[0010] As a further solution of the present invention, the support assembly includes a base that is sleeved on the outer wall of the connecting rod, and a first sleeve that is sleeved on the outer wall of the connecting rod is integrally formed at the center position of the base. Ribs are provided between the base and the outer wall of the first sleeve to improve the connection stability. At least three first accommodating grooves are equidistantly provided on the inner wall of the first sleeve along the circumferential direction, and a first clamping block is installed on the top of the inner wall of the first accommodating groove. The first clamping block is made of engineering material and is elastic. The inner side of the bottom of the first clamping block is triangular in shape, and the first sleeve is prevented from falling by being clamped by the first clamping block and the ridge.

[0011] As a further solution of the present invention, the first positioning assembly includes a first splint that is sleeved on the outer wall of the connecting rod, and a positioning seat that is sleeved on the connecting rod is integrally formed on the top of the first splint, and ribs are provided between the positioning seat and the outer wall of the first splint to improve the stability of both, and baffles are installed all around the upper surface of the positioning seat, and a first limiting groove is provided on the inner side of the baffle to limit the steel wire on the steel mesh, and positioning parts are clamped between the baffles.

[0012] As a further solution of the present invention, the positioning portion includes a cover plate, the outer edge of the cover plate is a slope, and when the cover plate squeezes the baffle, the baffle can move outward. The middle part of the cover plate is integrally formed with a second sleeve that is sleeved with the outer wall of the connecting rod. The inner wall of the second sleeve is provided with at least three second accommodating grooves equidistantly along the circumference. A second clamping block is installed on the top of the inner cavity of the second accommodating groove. The second clamping block is made of engineering plastic, and the inner side of the bottom of the second clamping block is triangular. The second clamping block positions the second sleeve when it is engaged with the ridge.

[0013] As a further solution of the present invention, the second positioning assembly includes a second splint that is sleeved on the outer wall of the connecting rod, and the top of the second splint is integrally formed with an annular seat that is sleeved on the connecting rod, and the upper surface of the annular seat is provided with at least three sliding grooves equidistantly along the circumference, and the sliding grooves are connected to the annular seat, and the top of the annular seat is integrally formed with a base, and the inner cavity of the sliding groove is slidably connected to a slider, and a pressure plate is installed on the top of the slider, and the steel mesh is positioned by cooperating with the pressure plate and the base, and a rotatable turntable is provided at the bottom of the annular seat, and the upper surface of the turntable is provided with guide grooves corresponding to the position of the slider equidistantly along the circumference, and the bottom of the slider is provided with a pin that is inserted into the inner cavity of the sliding groove.

[0014] As a further solution of the present invention, the guide grooves are obliquely distributed on the outer wall of the turntable.

[0015] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: 1. This invention provides slots on the front of the insulation panels that match the bumps. The bumps fit into the slots during splicing, achieving a seamless connection between the insulation panels. This effectively avoids the gaps found in traditional splicing methods and reduces the path for heat loss through these gaps. Furthermore, the connecting rods of the connectors are made of fiberglass or basalt, materials with poor thermal conductivity, which can block the thermal bridge effect caused by traditional connectors such as metal screws, significantly reducing heat loss and significantly improving the insulation system's effectiveness.

[0016] 2. When the support assembly of the present invention is used in combination with the first positioning assembly, the installation process is simple and convenient. After the first splint contacts the surface of the insulation board, the second sleeve is put on the connecting rod. At this time, the baffle will limit the cover plate, and at the same time, the second clamping block is clamped with the ridge of the outer wall of the connecting rod. Not only is the precise positioning of the steel mesh achieved through the cooperation between the baffle and the cover plate, but the positioning of the first splint is also completed with the help of the cooperation between the second clamping block and the ridge. There is no need for traditional threaded screwing operations, which greatly simplifies the installation process, facilitates quick operation by staff, and significantly improves installation efficiency.

[0017] 3. When the support assembly of the present invention is used in combination with the second positioning assembly, it has the function of tightening the steel mesh. When the turntable is rotated, the inclined guide groove slope on the turntable will squeeze the pin inward, thereby driving the slider and the pressure plate to move inward. The slider is engaged with the ridges on the outer wall of the connecting rod to limit the second clamping plate, and the pressure plate cooperates with the base to clamp the steel mesh so that the steel mesh will not shake when installed with the insulation board. This structural design can ensure the accurate position of the steel mesh during the concrete pouring process, thereby further improving the firmness and stability of the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2Schematic diagram of the combined structure of the insulation board; Figure 3 Schematic diagram of the connector structure; Figure 4 This is a main cross-sectional view of the support assembly; Figure 5 Schematic diagram of the structure of the first positioning component; Figure 6 This is a main cross-sectional view of the positioning portion; Figure 7 This is a front cross-sectional view of the second positioning assembly; Figure 8 Schematic diagram of the turntable structure; Figure 9 Schematic diagram of the connector structure in the prior art.

[0019] In the figure: 1. insulation board; 2. guide groove; 3. slot; 4. protrusion; 5. connector; 51. connecting rod; 52. ridge; 53. support assembly; 54. first positioning assembly; 55. second positioning assembly; 531. base; 532. first sleeve; 533. first receiving groove; 534. first clamping block; 541. first splint; 542. positioning seat; 543. baffle; 544. first limiting groove; 545. positioning part; 5451. cover; 5452. second sleeve; 5453. second receiving groove; 5454. second clamping block; 551. second splint; 552. annular seat; 553. slide groove; 554. base; 555. slider; 556. pressure plate; 557. turntable; 558. guide groove; 559. pin. DETAILED DESCRIPTION

[0020] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0021] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0022] Example 1, please refer to Figure 1 and 2The top surface of the heat preservation board 1 is provided with a plurality of guide grooves 2 at equal intervals from the front to the back. The guide grooves 2 opened on the surface of the heat preservation board 1 are straight grooves, dovetail grooves or T-shaped grooves. The guide grooves 2 play the role of draining concrete to prevent uneven pouring of the wall or hollowing. A slot 3 is opened horizontally on the front side of the heat preservation board 1. The heat preservation board 1 is integrally formed with a protrusion 4 matching the slot 3. The protrusion 4 and the slot 3 are spliced ​​to allow two heat preservation boards 1 to be combined. The slot 3 on the heat preservation board 1 is a straight groove or an L-shaped groove. The protrusion 4 matches the shape of the slot 3, so that the heat preservation board 1 is seamlessly connected to avoid heat loss. The slot 3 on the heat preservation board 1 is a straight groove or an L-shaped groove. The protrusion 4 matches the shape of the slot 3, so that the heat preservation board 1 is seamlessly connected to avoid heat loss. Connectors 5 are evenly arranged on the surface of the heat preservation board 1, and the heat preservation board 1 is installed with the steel mesh through the connector 5.

[0023] See Figure 3 The connecting piece 5 includes a connecting rod 51 inserted into the outer wall of the insulation board 1. The connecting rod 51 is made of fiberglass or basalt. The thermal conductivity of fiberglass and basalt is poor to prevent heat loss from the wall. A number of ridges 52 are continuously provided on the upper and lower sides of the outer wall of the connecting rod 51. The ridges 52 are symmetrically distributed on the outer wall of the connecting rod 51, and the side surfaces of the ridges 52 are inclined. The inclined surfaces play an extrusion role, and the plane can position the support component 53, the first positioning component 54 or the second positioning component 55. The bottom of the outer wall of the connecting rod 51 is sleeved with the support component 53, and the ridges 52 are used to position the support component 53. The connecting rod 51 supports the bottom of the insulation board 1, and the top of the outer wall of the connecting rod 51 is sleeved with the first positioning component 54. The steel mesh is fixed by the first positioning component 54, and the steel mesh and the insulation board are installed equidistantly.

[0024] For further information, see Figure 4 The support assembly 53 includes a base 531 that is sleeved on the outer wall of the connecting rod 51. A first sleeve 532 that is sleeved on the outer wall of the connecting rod 51 is integrally formed at the center of the base 531. Ribs are provided between the base 531 and the outer wall of the first sleeve 532 to improve the connection stability. At least three first accommodating grooves 533 are equidistantly provided on the inner wall of the first sleeve 532 along the circumferential direction. A first clamping block 534 is installed on the top of the inner wall of the first accommodating groove 533. The first accommodating groove 533 reserves space for the first clamping block 534 to move. The first clamping block 534 is made of engineering material and is elastic. It can be reset after being squeezed by the ridge 52. The inner side of the bottom of the first clamping block 534 is triangular in shape. The first clamping block 534 is engaged with the ridge 52 to prevent the first sleeve 532 from falling.

[0025] The first clamping block 534 is made of engineering plastic with an elastic modulus of 200-300 MPa to ensure that it can maintain elasticity after multiple extrusions; the ridge 52 and the first clamping block 534 are matched, the inclined surface angle of the ridge 52 is 60 degrees, and the inner side inclination angle of the triangle of the first clamping block 534 matches the inclined surface of the ridge 52.

[0026] For further information, see Figure 5 The first positioning assembly 54 includes a first splint 541 that is sleeved on the outer wall of the connecting rod 51. A positioning seat 542 that is sleeved on the connecting rod 51 is integrally formed on the top of the first splint 541. Ribs are provided between the positioning seat 542 and the outer wall of the first splint 541 to improve the stability of both. Baffles 543 are installed all around the upper surface of the positioning seat 542. The baffles 543 serve as a limit for the steel mesh. A first limiting groove 544 is provided on the inner side of the baffle 543. The first limiting groove 544 accurately determines the height of the steel wire on the steel mesh and limits the steel wire on the steel mesh. A positioning portion 545 is clamped between the baffles 543.

[0027] For further information, see Figure 6 The positioning portion 545 includes a cover plate 5451, the outer edge of the cover plate 5451 is a slope, when the cover plate 5451 squeezes the stop bar 543, the stop bar 543 can be moved outward, the middle part of the cover plate 5451 is integrally formed with a second sleeve 5452 that is sleeved with the outer wall of the connecting rod 51, the inner wall of the second sleeve 5452 is equidistantly provided with at least three second receiving grooves 5453 along the circumferential direction, the top of the inner cavity of the second receiving groove 5453 is installed with a second clamping block 5454, the second receiving groove 5453 reserves space for the second clamping block 5454 to move. The second clamping block 5454 is made of engineering plastic. The inner side of the bottom of the second clamping block 5454 is triangular. When the second clamping block 5454 is engaged with the convex ridge 52, the second sleeve 5452 is positioned. The second clamping block 5454 is made of engineering plastic with an elastic modulus of 200-300MPa to ensure that it can still maintain elasticity after multiple extrusions. The inner inclination angle of the triangle of the second clamping block 5454 matches the inclined surface of the convex ridge 52.

[0028] Working principle: Step 1: When pouring concrete on the load-bearing wall, the guide groove 2 on the insulation board 1 plays a guiding role to prevent hollowing of the wall or poor density of the wall casting. The protrusion 4 cooperates with the slot 3 to ensure seamless connection between the insulation boards 1 to prevent heat loss. In step 2, when the insulation board 1 and the steel mesh are installed using the connecting piece 5, the connecting rod 51 passes through the reserved hole of the insulation board 1, and the first sleeve 532 is sleeved on the connecting rod 51. With the help of the outer inclined surface of the convex rib 52, the first clamping block 534 can be squeezed outward. At the same time, the first clamping block 534 can also be reset by its own elasticity. The first clamping block 534 is engaged with the convex rib 52 to prevent the first sleeve 532 from falling, so that the base 531 clamps the bottom of the insulation board 1; In step three, the first clamping plate 541 and the positioning seat 542 are sleeved on the connecting rod 51, so that the first clamping plate 541 contacts the upper surface of the insulation board 1 to clamp the insulation board 1. At this time, the steel mesh is placed on the positioning seat 542, and the baffle 543 blocks the steel wire of the steel mesh. Then the second sleeve 5452 is inserted, and the cover plate 5451 squeezes the baffle 543 outward until the cover plate 5451 enters the inner side of the baffle 543. The steel wire is locked by the cover plate 5451 to prevent the steel mesh from detaching from the positioning seat 542. The second clamping block 5454 is clamped on the outer wall of the ridge 52 to prevent the second sleeve 5452 from rising, thereby achieving stable installation of the steel mesh and the insulation board 1.

[0029] Example 2, please refer to Figure 1 and 2 The top surface of the heat preservation board 1 is provided with a plurality of guide grooves 2 at equal intervals from the front to the back. The guide grooves 2 opened on the surface of the heat preservation board 1 are straight grooves, dovetail grooves or T-shaped grooves. The guide grooves 2 play the role of draining concrete to prevent uneven pouring of the wall or hollowing. A slot 3 is opened horizontally on the front side of the heat preservation board 1. The heat preservation board 1 is integrally formed with a protrusion 4 matching the slot 3. The protrusion 4 and the slot 3 are spliced ​​to allow two heat preservation boards 1 to be combined. The slot 3 on the heat preservation board 1 is a straight groove or an L-shaped groove. The protrusion 4 matches the shape of the slot 3, so that the heat preservation board 1 is seamlessly connected to avoid heat loss. The slot 3 on the heat preservation board 1 is a straight groove or an L-shaped groove. The protrusion 4 matches the shape of the slot 3, so that the heat preservation board 1 is seamlessly connected to avoid heat loss. Connectors 5 are evenly arranged on the surface of the heat preservation board 1, and the heat preservation board 1 is installed with the steel mesh through the connector 5.

[0030] See Figure 3 The connecting piece 5 includes a connecting rod 51 inserted into the outer wall of the insulation board 1. The connecting rod 51 is made of fiberglass or basalt. The thermal conductivity of fiberglass and basalt is poor to prevent heat loss from the wall. A number of ridges 52 are continuously provided on the upper and lower sides of the outer wall of the connecting rod 51. The ridges 52 are symmetrically distributed on the outer wall of the connecting rod 51, and the side surfaces of the ridges 52 are inclined. The inclined surfaces play an extrusion role, and the plane can position the support component 53, the first positioning component 54 or the second positioning component 55. The bottom of the outer wall of the connecting rod 51 is sleeved with the support component 53, and the support component 53 is positioned by the protrusion of the ridge 52. The connecting rod 51 supports the bottom of the insulation board 1, and the top of the outer wall of the connecting rod 51 is sleeved with the second positioning component 55. The steel mesh is fixed by the second positioning component 55, and the steel mesh and the insulation board are installed equidistantly.

[0031] For further information, see Figure 4The support assembly 53 includes a base 531 that is sleeved on the outer wall of the connecting rod 51. A first sleeve 532 that is sleeved on the outer wall of the connecting rod 51 is integrally formed at the center of the base 531. Ribs are provided between the base 531 and the outer wall of the first sleeve 532 to improve the connection stability. At least three first accommodating grooves 533 are equidistantly provided on the inner wall of the first sleeve 532 along the circumferential direction. A first clamping block 534 is installed on the top of the inner wall of the first accommodating groove 533. The first accommodating groove 533 reserves space for the first clamping block 534 to move. The first clamping block 534 is made of engineering material and is elastic. It can be reset after being squeezed by the ridge 52. The inner side of the bottom of the first clamping block 534 is triangular in shape. The first clamping block 534 is engaged with the ridge 52 to prevent the first sleeve 532 from falling.

[0032] The first clamping block 534 is made of engineering plastic with an elastic modulus of 200-300 MPa to ensure that it can maintain elasticity after multiple extrusions; the ridge 52 and the first clamping block 534 are matched, the inclined surface angle of the ridge 52 is 60 degrees, and the inner side inclination angle of the triangle of the first clamping block 534 matches the inclined surface of the ridge 52.

[0033] For further information, see Figure 7 and 8 The second positioning assembly 55 includes a second clamping plate 551 sleeved on the outer wall of the connecting rod 51, and an annular seat 552 sleeved with the connecting rod 51 is integrally formed on the top of the second clamping plate 551. At least three slide grooves 553 are opened on the upper surface of the annular seat 552 at equal intervals along the circumference, and the slide grooves 553 are connected to the annular seat 552. A base 554 is integrally formed on the top of the annular seat 552. The inner cavity of the slide groove 553 is slidably connected to the slider 555. The slide groove 553 cooperates with the slider 555 to give the pressure plate 556 the ability to move. The top of the slider 555 is installed There is a pressure plate 556, which cooperates with the base 554 to position the steel mesh. A rotatable turntable 557 is provided at the bottom of the annular seat 552. The upper surface of the turntable 557 is equidistantly provided with guide grooves 558 corresponding to the position of the slider 555 along the circumferential direction. The guide grooves 558 are obliquely distributed on the outer wall of the turntable 557. When the turntable 557 rotates, the inclined surface of the guide groove 558 can squeeze the pin 559 inward or outward, thereby realizing the inward and outward movement of the pressure plate 556. A pin 559 is installed at the bottom of the slider 555 to be inserted into the inner cavity of the slide groove 553.

[0034] Working principle: Step 1: When pouring concrete on the load-bearing wall, the guide groove 2 on the insulation board 1 plays a guiding role to prevent hollowing of the wall or poor density of the wall casting. The protrusion 4 cooperates with the slot 3 to ensure seamless connection between the insulation boards 1 to prevent heat loss. In step 2, when the insulation board 1 and the steel mesh are installed using the connecting piece 5, the connecting rod 51 passes through the reserved hole of the insulation board 1, and the first sleeve 532 is sleeved on the connecting rod 51. With the help of the outer inclined surface of the convex rib 52, the first clamping block 534 can be squeezed outward. At the same time, the first clamping block 534 can also be reset by its own elasticity. The first clamping block 534 is engaged with the convex rib 52 to prevent the first sleeve 532 from falling, so that the base 531 clamps the bottom of the insulation board 1; Step three, the second clamping plate 551 and the annular seat 552 are put on the connecting rod 51 until the second clamping plate 551 is attached to the upper surface of the insulation board 1, the steel mesh is placed on the annular seat 552, and the steel wire is located between the base 554 and the pressure plate 556, and the turntable 557 is rotated to allow the guide groove 558 to be inclined and squeeze the pin 559 inward. Under the limiting action of the slider 555, the pressure plate 556 moves inward to clamp and position the steel wire, and the slider 555 contacts the connecting rod 51 and is clamped on the ridge 52, positioning the first sleeve 532 and the connecting rod 51, thereby realizing the installation of the insulation board 1 and the steel mesh.

[0035] The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A thermal insulation board, characterized in that: The invention comprises a heat preservation board (1), wherein a plurality of guide grooves (2) are provided on the upper surface of the heat preservation board (1) at equal intervals from the front to the back, a slot (3) is provided on the front side of the heat preservation board (1), a convex block (4) matching the slot (3) is integrally formed on the heat preservation board (1), and the convex block (4) and the slot (3) are spliced ​​to combine two heat preservation boards (1), and connectors (5) are evenly provided on the surface of the heat preservation board (1), and the heat preservation board (1) is mounted on the steel mesh via the connectors (5).

2. The thermal insulation board according to claim 1, characterized in that: The guide groove (2) provided on the surface of the insulation board (1) is a straight groove, a dovetail groove or a T-shaped groove, the slot (3) on the insulation board (1) is a straight groove or an L-shaped groove, and the protrusion (4) matches the shape of the slot (3).

3. The thermal insulation board according to claim 2, characterized in that: The connecting rod (51) is made of glass fiber reinforced plastic or basalt material.

4. The connector according to claim 3, wherein: The connecting member (5) includes a connecting rod (51) inserted into the outer wall of the insulation board (1), and a plurality of ridges (52) are continuously provided on the upper and lower sides of the outer wall of the connecting rod (51). A support assembly (53) is sleeved on the bottom of the outer wall of the connecting rod (51), and the support assembly (53) is positioned by using the protrusions of the ridges (52). The connecting rod (51) supports the bottom of the insulation board (1). A first positioning assembly (54) or a second positioning assembly (55) is sleeved on the top of the outer wall of the connecting rod (51), and the steel mesh is fixed by the first positioning assembly (54) or the second positioning assembly (55), so that the steel mesh and the insulation board are installed at equal distances.

5. The connector according to claim 4, characterized in that The plurality of ridges (52) are symmetrically distributed on the outer wall of the connecting rod (51) in an upper and lower manner, and the side surfaces of the ridges (52) are inclined surfaces.

6. The connector according to claim 5, characterized in that The support assembly (53) includes a base (531) sleeved on the outer wall of the connecting rod (51), a first sleeve (532) sleeved on the outer wall of the connecting rod (51) is integrally formed at the center of the base (531), and ribs are provided between the base (531) and the outer wall of the first sleeve (532) to improve the connection stability, at least three first accommodating grooves (533) are equidistantly provided on the inner wall of the first sleeve (532) along the circumferential direction, and a first clamping block (534) is installed on the top of the inner wall of the first accommodating groove (533), the first clamping block (534) is made of engineering material and has elasticity, the inner side of the bottom of the first clamping block (534) is triangular in shape, and the first sleeve (532) is prevented from falling by being clamped by the first clamping block (534) and the ridge (52).

7. The connector according to claim 6, characterized in that The first positioning assembly (54) includes a first clamping plate (541) sleeved on the outer wall of the connecting rod (51), a positioning seat (542) sleeved on the connecting rod (51) is integrally formed on the top of the first clamping plate (541), ribs are provided between the positioning seat (542) and the outer wall of the first clamping plate (541) to improve the stability of both, and retaining bars (543) are installed around the upper surface of the positioning seat (542), and a first limiting groove (544) is provided on the inner side of the retaining bar (543) to limit the steel wire on the steel mesh, and a positioning portion (545) is clamped between the retaining bars (543).

8. The connecting piece according to claim 7, characterized in that The positioning portion (545) includes a cover plate (5451), the outer edge of the cover plate (5451) is an inclined surface, and when the cover plate (5451) squeezes the stop bar (543), the stop bar (543) can be moved outward. A second sleeve (5452) is integrally formed in the middle of the cover plate (5451) and is sleeved with the outer wall of the connecting rod (51). The inner wall of the second sleeve (5452) is provided with at least three second receiving grooves (5453) equidistantly along the circumference. A second clamping block (5454) is installed on the top of the inner cavity of the second receiving groove (5453). The second clamping block (5454) is made of engineering plastic. The inner side of the bottom of the second clamping block (5454) is triangular. When the second clamping block (5454) is clamped with the ridge (52), the second sleeve (5452) is positioned.

9. The connecting piece according to claim 6, characterized in that The second positioning assembly (55) includes a second clamping plate (551) sleeved on the outer wall of the connecting rod (51), the top of the second clamping plate (551) is integrally formed with an annular seat (552) sleeved with the connecting rod (51), the upper surface of the annular seat (552) is provided with at least three chute (553) equidistantly along the circumference, and the chute (553) is connected to the annular seat (552), the top of the annular seat (552) is integrally formed with a base (554), and the inner cavity of the chute (553) is provided with a plurality of grooves (553). A slider (555) is slidably connected, and a pressure plate (556) is installed on the top of the slider (555). The steel mesh is positioned by cooperating with the pressure plate (556) and the base (554). A rotatable turntable (557) is provided at the bottom of the annular seat (552). The upper surface of the turntable (557) is provided with guide grooves (558) corresponding to the position of the slider (555) at equal intervals along the circumference. A pin (559) is installed at the bottom of the slider (555) and is plugged into the inner cavity of the slide groove (553).

10. The connecting piece according to claim 9, characterized in that The guide grooves (558) are obliquely distributed on the outer wall of the turntable (557).

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