Prefabricated wallboard hole site fixing pin rod

Abstract

The utility model discloses a prefabricated wallboard hole site fixing pin rod which comprises a metal rod body and a silica gel rod body wrapping the periphery of the metal rod body, one end of the metal rod body penetrates out of the silica gel rod body, and an external thread is arranged on the exposed portion of the metal rod body. The metal rod body and the silica gel rod body are further provided with limiting holes penetrating in the radial direction, and the limiting holes are arranged away from the end where the external threads are located. According to the hole site fixing pin rod for the prefabricated wall panel, an original positioning pin structure is improved, a metal and silica gel composite rod body is manufactured, so that the hole site fixing pin rod has the advantages of a metal rod body and a non-metal rod body, and the problem that the positioning pin rod is prone to skew can be solved when the hole site fixing pin rod is applied to the production process of the prefabricated wall panel.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a prefabricated wall panel hole position fixing pin rod. Background Art

[0002] With the widespread application of PC components (precast concrete components) in high-rise buildings, various component factories have emerged, and the use of prefabricated wall panels has greatly increased. The perforation process is required between wall panels, between wall panels and aluminum molds, and between aluminum molds and climbing frames. During the production process, the perforations are particularly easy to deviate from the mold, causing the hole positions to be skewed.

[0003] In the prior art, positioning pins are used for positioning connection, and most positioning pins are metal pins. Although they have high strength and good rigidity, they will wear non-metallic wall panels or templates during connection, and long-term use is not conducive to the accuracy of positioning. Non-metallic pin rods are also used, but their rigidity is poor and they are easy to deform, resulting in inaccurate positioning. Summary of the invention

[0004] The utility model aims to provide a prefabricated wall panel hole position fixing pin rod in view of the problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A prefabricated wall panel hole fixing pin rod comprises a metal rod body and a silicone rod body wrapped around the outer circumference of the metal rod body, one end of the metal rod body passes through the silicone rod body and an external thread is provided on the exposed portion; the metal rod body and the silicone rod body are also provided with radially penetrating limiting holes, and the limiting holes are arranged away from the end where the external thread is located.

[0007] The prefabricated wall panel hole position fixing pin rod is manufactured by improving the original positioning pin structure to produce a metal and silicone composite rod body, which has the characteristics of both rigidity and flexibility. The problem that the positioning pin rod is easily skewed can be overcome when used in the prefabricated wall panel production process.

[0008] The fixing pin rod has the advantages of both metal and non-metallic rods by compounding a layer of the silicone rod body on the metal rod body. It has high strength and good support stability. When connecting the wallboard mold, the positioning hole is not easy to be skewed; it also has a certain flexibility. When using the fixing pin rod to connect the template, it will not cause additional damage to the positioning hole of the template. When removing the mold and demoulding, the connecting piece is not easy to get stuck, which is conducive to demoulding.

[0009] One end of the metal rod body is provided with an external thread and exposed outside the silicone rod body. The external thread and nut can be used to connect to the positioning hole on the connected object (such as wall panel, bottom mold, etc.), or it can be fixed on the upper tooling to achieve the purpose of accurate positioning.

[0010] Furthermore, the metal rod is a steel rod, which can be a cylindrical smooth rod, or an anti-slip pattern can be set on the outer circumference of the metal rod. The anti-slip pattern is arranged in the middle and upper part of its outer circumference to avoid relative sliding between the silicone rod and the metal rod.

[0011] In some embodiments, the inner diameter of the silicone rod is smaller than the outer diameter of the metal rod, and an angle of 0.5 to 1.5 degrees exists between the outer generatrix of the silicone rod and the central axis, which is conducive to plugging and unplugging and demoulding.

[0012] In some embodiments, the metal rod body is a multi-stage stepped rod body structure, with the outer diameter gradually increasing from top to bottom, and the diameter difference between adjacent outer circumferences does not exceed 2 mm.

[0013] Furthermore, a truncated cone-shaped guide structure is provided at the end of the metal rod away from the external thread, which is conducive to the insertion of the silicone rod and will not allow sharp edges to scratch the silicone.

[0014] Furthermore, a plurality of exhaust holes are respectively provided on the end surface and the outer periphery of the silicone rod body, which can exhaust the air inside the silicone rod body when the silicone rod body is sleeved on the metal rod body, so that the two are more closely connected.

[0015] Furthermore, the metal rod body is provided with a circle of limiting grooves or limiting protrusions at the outer circumference near the external thread, and the inner circumference of the silicone rod body is provided with a matching clamping protrusion or clamping groove. The limiting groove and the clamping protrusion are matched, or the limiting protrusion and the clamping groove are matched, and the purpose of such a setting is to set a limit at the connection between the two.

[0016] Furthermore, the limiting protrusion is a regular polygonal structure.

[0017] Furthermore, the limiting hole is an elongated hole and is equipped with a wedge-shaped limiting clip that matches the elongated hole; or, the limiting hole is a round hole and is equipped with a wave-shaped clip that matches the round hole.

[0018] Furthermore, the diameter of the metal rod is between 10 and 30 mm, and the length of the metal rod is not shorter than 270 mm.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. The prefabricated wall panel hole position fixing pin rod improves the original positioning pin structure to produce a metal and silicone composite rod body, which has the characteristics of both rigidity and flexibility. When used in the prefabricated wall panel production process, it can overcome the problem that the positioning pin rod is easy to be skewed; 2. The fixing pin rod is compounded with a layer of the silicone rod body outside the metal rod body, so that it has the advantages of both metal rod body and non-metallic rod body; compared with a simple non-metallic pin rod, the fixing pin rod has higher strength and better supporting stability, and the positioning hole is not easy to be skewed when connecting the wall panel mold. , which is conducive to the installation and connection of the template; compared with the simple metal pin rod, the silicone rod body on the outside of the fixed pin rod has a certain flexibility. When using the fixed pin rod to connect the template, it will not cause additional damage to the positioning hole of the template, thereby improving the service life and long-term positioning accuracy of the wall panel mold, wall panel, etc., and the connecting parts are not easy to get stuck when dismantling the mold and demolding, which is conducive to demolding; 3. One end of the metal rod body is provided with an external thread and exposed outside the silicone rod body. The external thread and the nut can be used to connect to the positioning hole on the connected object, or it can be fixed on the upper tooling to achieve the purpose of accurate positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a partial cross-sectional structural schematic diagram of a prefabricated wall panel hole fixing pin rod according to the utility model;

[0021] Figure 2 This is a structural schematic diagram of a metal rod body of a prefabricated wall panel hole fixing pin rod according to the utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of a prefabricated wall panel hole fixing pin rod according to the utility model;

[0023] Figure 4 This is a schematic diagram of the end structure of the silicone rod of the utility model;

[0024] Figure 5 This is a schematic structural diagram of another metal rod body of the utility model;

[0025] Figure 6 This is a partial structural schematic diagram of another silicone rod body of the utility model;

[0026] Figure 7 for Figure 5 A schematic diagram of the structure of the limiting protrusion of the metal rod;

[0027] Figure 8 This is a schematic diagram of the overall structure of another prefabricated wall panel hole fixing pin rod of the utility model;

[0028] In the figure: 1. Metal rod body; 2. Silicone rod body; 3. External thread; 4. Limiting hole; 5. Anti-slip pattern; 6. Exhaust hole; 7. Conical guide structure; 8. Limiting protrusion; 9. Engaging groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] like Figure 1 to Figure 3 As shown, a prefabricated wall panel hole fixing pin rod comprises a metal rod body 1 and a silicone rod body 2 wrapped around the outer circumference of the metal rod body 1, one end of the metal rod body 1 passes through the silicone rod body 2 and an external thread 3 is provided on the exposed part; the metal rod body 1 and the silicone rod body 2 are also provided with radially penetrating limiting holes 4, and the limiting holes 4 are arranged away from the end where the external threads are located.

[0032] The prefabricated wall panel hole position fixing pin rod is manufactured by improving the original positioning pin structure to produce a metal and silicone composite rod body, which has the characteristics of both rigidity and flexibility. The problem that the positioning pin rod is easily skewed can be overcome when used in the prefabricated wall panel production process.

[0033] The fixing pin rod has the advantages of both metal and non-metal rods by compounding a layer of the silicone rod body 2 outside the metal rod body 1. Compared with a simple non-metallic pin rod, such as a wooden pin rod, a rubber rod or a polyurethane rod, the fixing pin rod has higher strength and better supporting stability. When connecting the wallboard mold, the positioning hole is not easy to be skewed, which is conducive to the installation and connection of the template.

[0034] Compared with simple metal pins, the silicone rod body on the outside of the fixed pin has a certain degree of flexibility. On the one hand, when using the fixed pin to connect the template, it will not cause additional damage to the positioning holes of the template, such as wear, etc., thereby improving the service life and long-term positioning accuracy of wall panel molds, wall panels, etc.; on the other hand, when dismantling the mold, the connecting parts are not easy to get stuck, which is conducive to demolding.

[0035] One end of the metal rod body 1 is provided with an external thread 3 and exposed outside the silicone rod body 2. The external thread and nut can be used to connect to the positioning hole on the connected object (such as wall panel, bottom mold, etc.), or it can be fixed on the upper tooling to achieve the purpose of accurate positioning.

[0036] The fixing pin can be manufactured in a variety of ways, namely, the metal rod and the silicone rod are manufactured and processed according to the designed dimensions, and then the silicone rod is stretched and sleeved on the metal rod; or the silicone rod is molded on the metal rod by pouring silicone.

[0037] Furthermore, the metal rod body 1 is a steel rod, such as a threaded steel rod, and the outer periphery of the metal rod body 1 is also provided with an anti-slip pattern 5, which is arranged in the middle and upper part of its outer periphery. The anti-slip pattern 5 can increase friction and bonding force to ensure that the metal rod body and the silicone rod body are effectively and stably connected.

[0038] Furthermore, the inner diameter of the silicone rod body 2 is smaller than the outer diameter of the metal rod body 1, and due to the flexibility of the silicone material, the silicone rod body can not only be sleeved outside the metal rod body, but also fit tightly with interference fit; there is an angle of 0.5 to 1.5 degrees between the outer peripheral generatrix of the silicone rod body 2 and the central axis, such as an inclination of 1 degree, so that the outer periphery of the entire fixing pin rod has a slight slope, which is conducive to plugging and pulling out, and convenient demoulding.

[0039] In other embodiments, the metal rod 1 is a multi-stage stepped rod structure, with the outer diameter increasing from top to bottom, and the diameter difference between adjacent outer circumferences does not exceed 2 mm. This layered rod structure has a variable diameter effect, can be used in some connection structures with varying apertures, and is also convenient for its own plugging and unplugging.

[0040] Further, combined with Figure 5 As shown, the end of the metal rod 1 away from the external thread 3 is provided with a truncated cone guide structure 7. That is to say, the metal rod 1 has an arc-shaped end, so that when connecting the silicone rod 2, it has a certain guiding effect and will not isolate and scratch the silicone.

[0041] Further, combined with Figure 4As shown, the end surface and the outer periphery of the silicone rod 2 are respectively provided with a plurality of exhaust holes 6. The arrangement of these exhaust holes 6 has an exhaust function, and when the silicone rod is sleeved, the residual air inside can be discharged, which is conducive to the close fit between the silicone rod and the metal rod.

[0042] Further, such as Figure 5-7 As shown, the metal rod body 1 is provided with a circle of limiting protrusions 8 at the outer circumference close to the external thread 3 , and the inner circumference of the silicone rod body 2 is provided with a snap-fitting groove 9 matched with the limiting protrusions 8 .

[0043] The purpose of such a setting is to set a limit at the connection between the two to prevent the silicone rod from easily falling off the metal rod and to reduce the displacement of the silicone.

[0044] Furthermore, the limiting protrusion 8 is a regular polygonal structure, such as a regular hexagonal structure; the limiting protrusion on the metal rod body is set to a regular hexagon, and even if the silicone rod body is sleeved, this place can still be subjected to force, which is convenient for manually or using tools to screw the external threaded end of the fixing pin into the hole, and the limiting protrusion can also limit the screwing depth.

[0045] Further, the limiting hole 4 is an elongated hole and is equipped with a wedge-shaped limiting clip adapted to the elongated hole; or, the limiting hole 4 is a round hole (such as Figure 8 As shown), and equipped with wave clips adapted to the circular holes. The cooperation of these clips with the limiting holes can limit the fixed pin rod to prevent it from falling off after connection.

[0046] Furthermore, the diameter of the metal rod 1 is between 10 and 30 mm, and the length of the metal rod 1 is not less than 270 mm. Preferably, the diameter of the metal rod 1 is 16 mm, and the overall length of the metal rod is about 300 mm.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated wall panel hole fixing pin rod, characterized in that: It comprises a metal rod body and a silicone rod body wrapped around the metal rod body, one end of the metal rod body passes through the silicone rod body and an external thread is provided on the exposed part; the metal rod body and the silicone rod body are also provided with radially penetrating limiting holes, and the limiting holes are arranged away from the end where the external thread is located.

2. The prefabricated wall panel hole fixing pin rod according to claim 1, characterized in that: The metal rod body is a steel rod, and an anti-skid pattern is further arranged on the outer circumference of the metal rod body, wherein the anti-skid pattern is arranged on the middle and upper part of the outer circumference.

3. The prefabricated wall panel hole fixing pin rod according to claim 1, characterized in that: The inner diameter of the silicone rod body is smaller than the outer diameter of the metal rod body, and an angle of 0.5 to 1.5 degrees exists between the outer peripheral generatrix of the silicone rod body and the central axis.

4. The prefabricated wall panel hole fixing pin rod according to claim 1, characterized in that: The metal rod body is a multi-stage stepped rod body structure, with the outer diameter gradually increasing from top to bottom, and the diameter difference between adjacent outer circumferences does not exceed 2mm.

5. The prefabricated wall panel hole fixing pin rod according to claim 1, characterized in that: The end of the metal rod body away from the external thread is provided with a truncated cone-shaped guiding structure.

6. The prefabricated wall panel hole fixing pin rod according to claim 1, characterized in that: A plurality of exhaust holes are respectively arranged on the end surface and the outer periphery of the silica gel rod body.

7. The prefabricated wall panel hole fixing pin rod according to claim 1, characterized in that: The metal rod body is provided with a circle of limiting grooves or limiting protrusions at the outer circumference close to the external thread, and the inner circumference of the silicone rod body is provided with matching clamping protrusions or clamping grooves.

8. The prefabricated wall panel hole fixing pin rod according to claim 7, characterized in that: The limiting protrusion is a regular polygonal structure.

9. The prefabricated wall panel hole fixing pin rod according to claim 1, characterized in that: The limiting hole is an elongated hole and is equipped with a wedge-shaped limiting clip that matches the elongated hole; or, the limiting hole is a round hole and is equipped with a wave clip that matches the round hole.

10. The prefabricated wall panel hole fixing pin rod according to claim 1, characterized in that: The diameter of the metal rod is between 10 and 30 mm, and the length of the metal rod is not shorter than 270 mm.

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