Water stop bolt, decorative cover component and installation method thereof

Abstract

The present invention provides a water stop bolt, a decorative cover member and an installation method thereof that can be operated simply with a simple structure. The water stop bolt 2 of the present invention has a threaded shaft 2a and a threaded head 2b, the threaded shaft 2a has external threads 2m1 and 2m2, the external threads 2m1 and 2m2 cooperate with internal threads 100n formed in the cylinder of a cylindrical insert 100, the cylindrical insert 100 is used to connect a wall scaffold, the threaded head 2b has a cover hole 2b1 formed at one end of the threaded shaft 2a, the cover hole 2b1 is provided with a decorative cover 3, the threaded shaft 2a and the threaded head 2b are formed as a whole by resin, the pitch p1 of each of the external threads 2m1 and 2m2 is the same as the pitch p1 of the internal thread, and the external threads 2m1 and 2m2 are formed with two threads in the middle of each thread tooth, and the height h2 of the thread teeth of the external threads 2m1 and 2m2 is lower than the height h1 of the thread teeth of the internal thread.

Description

Technical Field

[0001] The invention relates to a water stop bolt, a decorative cover component for a scaffolding connection anchor, and an installation method of the decorative cover component for the scaffolding connection anchor. Background Art

[0002] In the past, when construction was performed on the exterior walls of buildings, scaffolding was installed on the exterior walls.

[0003] Fig.30 1 is an exploded view of a conventional scaffolding anchor decorative cover member 101 provided in an anchor hole k1. Fig.31 1 is a cross-sectional view showing a state where a conventional decorative cover member 101 for a scaffold connection anchor is installed on an outer wall K. FIG.

[0004] When installing the scaffolding, the outer wall K is provided with an anchor hole k1 ( Fig.31 ), a scaffolding connection anchor 100 is knocked into the hole k1, and an internal thread is formed on the inner side of the scaffolding connection anchor 100.

[0005] Furthermore, a wall connection portion is fastened to the scaffold connection anchor 100 and the scaffold is installed.

[0006] After the construction using the scaffold is completed, the scaffold is dismantled and the anchor bolts are removed. Thereafter, the following work of hiding the anchor hole k1 (decoration work) is performed.

[0007] like Fig.30 As shown, the scaffolding anchor decorative cover member 101 of the decorative member includes a water stop bolt 102, a decorative cover 103, and an annular waterproof rubber 102p.

[0008] The water stop bolt 102 has an external thread 102m, a bolt washer 102b and a cover mounting hole 102c. Fig.31 )Cooperate.

[0009] like Fig.31 As shown, the water stop bolt 102 is screwed into the scaffold connection anchor 100 hammered into the hole k1 of the outer wall K while adjusting the screwing degree. In addition, a decorative cover 103 is attached to the water stop bolt 102 (see Patent Document 1).

[0010] In this way, the scaffolding anchor decorative cover member 101 is installed inside the scaffolding anchor 100 of the outer wall K. The hole k1 formed in the outer wall K is closed by the decorative cover 103 .

[0011] Prior art literature

[0012] Patent Literature

[0013] Patent Document 1: Japanese Patent Application Publication No. 2009-24340 Summary of the invention

[0014] However, the scaffold anchor decorative cover member 101 (103, 103a, 102, 102p) as a decorative member has the following problems: adjustment is required to prevent the decorative cover 103 from being sunken or protruding toward the outer wall K when the water stop bolt 102 is screwed in, and installation is time-consuming.

[0015] The present invention is proposed in view of the above actual situation, and its purpose is to provide a water stop bolt, a decorative cover member for a scaffolding connection anchor, and an installation method of the decorative cover member for a scaffolding connection anchor, which can adjust the position of the decorative cover through simple operations.

[0016] In order to solve the above-mentioned problems, the first aspect of the water stop bolt of the present invention comprises: a threaded shaft, the threaded shaft having two external threads, the external threads cooperating with the internal threads formed in the cylinder of the cylindrical insert, the cylindrical insert being used to connect the wall scaffolding; a threaded head, the threaded head forming a cover hole at one end of the threaded shaft, the cover hole being provided with a decorative cover; the threaded shaft and the threaded head being formed as a whole by resin, the pitch of each external thread being the same as the pitch of the internal thread, and the two external threads being formed in the middle of their respective thread teeth, and the height of the thread teeth of the external thread being lower than the height of the thread teeth of the internal thread.

[0017] The water stop bolt of the second aspect of the present invention comprises: a threaded shaft, the threaded shaft having an external thread, the external thread cooperates with the internal thread formed in the cylinder of a cylindrical insert, the cylindrical insert is used to connect a wall scaffolding; a threaded head, the threaded head forms a cover hole at one end of the threaded shaft, and the cover hole is provided with a decorative cover; the threaded shaft and the threaded head are formed as a whole by resin, the pitch of the external thread is smaller than the pitch of the internal thread, and the height of the thread teeth of the external thread is lower than the height of the thread teeth of the internal thread.

[0018] A decorative cover member for a scaffolding anchor according to a third aspect of the present invention comprises: the first or second water stop bolt of the present invention and a decorative cover provided in the cover hole of the threaded head.

[0019] The decorative cover component for a scaffolding connection anchor according to the fourth aspect of the present invention comprises: a threaded shaft, the threaded shaft cooperates with the internal thread formed in the cylinder of a cylindrical insert, the cylindrical insert is used to connect a wall scaffolding; a threaded head, the threaded head is formed with a decorative cover at one end of the threaded shaft, the threaded shaft, the threaded head and the decorative cover are formed as a whole by resin, the pitch of the external thread is less than or equal to the pitch of the internal thread, and the height of the thread teeth of the external thread is lower than the height of the thread teeth of the internal thread.

[0020] The fifth aspect of the present invention is a method for installing a decorative cover component for a scaffolding connecting anchor, which comprises knocking the decorative cover provided on the threaded head of the water stop bolt of any one of the first to third aspects of the present invention into the internal thread formed in the cylinder of the cylindrical insert, thereby knocking in the water stop bolt and making the decorative cover flush with the outer wall, wherein the cylindrical insert is used for a scaffolding of the outer wall of a building.

[0021] Effects of the Invention

[0022] According to the present invention, it is possible to provide a water stop bolt, a decorative cover member for a scaffolding anchor, and a method for installing the decorative cover member for a scaffolding anchor, which allow the position of the decorative cover to be adjusted by a simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view showing a state where a scaffold connection anchor decorative cover member including a water stop bolt according to Example 1 of the present invention is installed in an anchor hole of an outer wall.

[0024] Figure 2 This is an exploded perspective view of the scaffolding connection anchor decorative cover member according to the first embodiment of the present invention installed in the anchor hole formed in the outer wall.

[0025] Figure 3 (a) is an exploded perspective view of a decorative cover member for a scaffolding connection anchor and a scaffolding connection anchor according to Example 1 of the present invention, Figure 3 (b) is a side view of a partial longitudinal section including a rubber seal.

[0026] Figure 4 This is a front view showing a water stop bolt.

[0027] Figure 5 It is an enlarged schematic diagram showing the matching state of the internal thread of the scaffolding connection anchor and the external thread of the water stop bolt.

[0028] Figure 6 (a) is a longitudinal cross-sectional view of the internal thread of the scaffolding connection anchor of Example 1, Figure 6 (b) Yes Figure 6 (a) View in the I direction.

[0029] Figure 7 (a) is a longitudinal sectional view of the external thread of the water stop bolt of Example 1, Figure 7 (b) Yes Figure 7 (a) View in direction II.

[0030] Figure 8 It is a schematic diagram of the start point of the internal thread and the start point of the external thread of the scaffold connection anchor of Example 1 when the internal thread and the external thread of the water stop bolt are engaged, as viewed in the axial direction.

[0031] Fig. 9 This is a perspective view of a water stop bolt according to Modification 1.

[0032] Fig.10 (a) is a front view of the water stop bolt of Modification 1, Fig.10 (b) is Modification 1 Fig.10 (a) View in direction III.

[0033] Fig.11 It is a cross-sectional view showing a state in which the scaffold connection anchor decorative cover member according to Modification 2 is driven into the scaffold connection anchor provided in the anchor hole of the outer wall.

[0034] Fig.12 (a) is a front view showing a partial cross section of a water stop bolt including a modification 2. Fig.12 (b) is Modification 2 Fig.12 (a) IV direction view.

[0035] Fig.13 (a) is a front view of a water stop bolt of Modification 3, Fig.13 (b) is Modification 3 Fig.13 (a) V-direction view.

[0036] Fig.14 It is an enlarged cross-sectional schematic diagram showing a state in which the decorative cover member for the scaffold connection anchor according to the modification example 3 is fitted into the inside of the scaffold connection anchor.

[0037] Fig.15 This is a front view of a water stop bolt according to Modification 4.

[0038] Fig.16 This is a cross-sectional view of a case where the decorative cover member for a scaffolding anchor according to Modification 4 is applied to a case where the scaffolding anchor is driven in shallowly.

[0039] Fig.17 This is a cross-sectional view of a case where the decorative cover member for a scaffold connection anchor according to Modification 4 is applied to a scaffold connection anchor that is driven deeply.

[0040] Fig.18 This is a diagram showing a decorative cover member for a scaffolding anchor formed by integrally forming a decorative cover of a fifth modification with a water stop bolt.

[0041] Fig.19 This is a diagram showing a decorative cover member for a scaffolding anchor formed by integrally forming a decorative cover and a flange portion according to another example of Modification 5 on a water stop bolt.

[0042] Fig. 20 It is a cross-sectional view showing a state in which a decorative cover member for a scaffold connection anchor according to Modification 6 is provided inside the scaffold connection anchor.

[0043] Fig.21 It is a front view showing the decorative cover of modification example 6.

[0044] Fig. 22 (a) is a front cross-sectional view showing an example of a decorative cover of Modification Example 7, Fig. 22 (b) is a cross-sectional view showing an example of a state in which the decorative cover member for the scaffolding anchor according to the modification 7 is provided inside the scaffolding anchor.

[0045] Fig.23 (a) is a front cross-sectional view showing an example of a decorative cover of another company's product as an existing product, Fig.23 (b) is a cross-sectional view showing an example of a state in which a decorative cover member for a scaffolding anchor of another company, which is a conventional product, is provided inside a scaffolding anchor.

[0046] Fig.24 (a) is a front view showing a state where the decorative cover member for scaffold connection anchor of Example 2 is installed in the anchor hole of the wall, Fig.24 (b) is a perspective view of a water stop bolt of a decorative cover member for a scaffold connection anchor of Example 2, Fig.24 (c) Yes Fig.24 (b) View in the VI direction.

[0047] Fig.25 It is a front cross-sectional view showing a decorative cover according to Modification Example 8.

[0048] Fig.26 1 is a front cross-sectional view showing a rubber seal according to a ninth modification.

[0049] Fig. 27 (a) is a front view of a water stop bolt of Modification 10, Fig. 27 (b) is Modification 10 Fig. 27 (a) View in the VII direction.

[0050] Fig.28 It is a cross-sectional perspective view of a water stop bolt according to a tenth modification.

[0051] Fig.29 It is a cross-sectional view showing a state where the decorative cover member for the scaffolding connection anchor of the third embodiment is installed inside the scaffolding connection anchor.

[0052] Fig.30 This is an exploded view of a decorative cover member for a scaffold connection anchor installed in an existing anchor hole.

[0053] Fig.31 It is a cross-sectional view showing a state where a conventional decorative cover member for a scaffold connection anchor is installed on an outer wall. DETAILED DESCRIPTION

[0054] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings as appropriate.

[0055] <Example 1>

[0056] First, the use process of the decorative cover member for the scaffold connection anchor is described, and then each structure is described.

[0057] like Figure 2 As shown, when the outer wall K of a building is constructed, a scaffold is installed on the outer wall K.

[0058] When installing the scaffold, a plurality of anchor holes k1 are provided on the outer wall K. Then, the anchor holes k1 are hammered with the following Figure 3 The scaffolding anchor 100 shown in (a) has an internal thread 100n formed in a central hole 100a. Figure 1 (arrow α11).

[0059] The scaffolding anchor 100 has a cylindrical shape and is provided with a fall-off preventing member 101 on the inner side of the scaffolding anchor 100 to prevent the scaffolding anchor 100 from falling out of the anchor hole k1.

[0060] Then, anchor bolts for the scaffold are fastened to the scaffold connection anchors 100 with bolts, thereby assembling the scaffold.

[0061] After the construction is completed, the work of hiding the anchor hole k1 is performed (decoration work).

[0062] The scaffolding anchor decorative cover member 1 including the water stop bolt 2 of the first embodiment is driven into the internal thread 100n of the scaffolding anchor 100 provided in the anchor hole k1.

[0063] The cover 3a is installed on the outer wall K, thereby completing a series of operations.

[0064] The decorative cover member 1 for a scaffold connection anchor includes a water stop bolt 2, a decorative cover 3, and a rubber seal 4. Next, the structure will be described.

[0065] <Water stop bolt 2>

[0066] The water stop bolt 2 is formed of resin and has a threaded shaft 2a with an external thread 2m and a threaded head 2b.

[0067] The water stop bolt 2 is disposable and is used to reuse the scaffolding connection anchor 100 and is used in conjunction with the decorative cover 3 and the like.

[0068] In this case, the internal thread 100n of the scaffolding anchor 100 matches the external thread 2m of the water stop bolt 2, so that the scaffolding anchor 100 can be smoothly removed using a socket wrench.

[0069] The first external thread 2m1 and the second external thread 2m2 of the water stop bolt 2 described below are the same threads as the internal thread 100n of the scaffold connecting anchor 100, and therefore, can be removed smoothly.

[0070] The screw head 2b of the water stop bolt 2 is provided with a cover hole 2b1, into which the cover shaft 3d of the decorative cover 3 is inserted. The screw head 2b is hexagonal, and a flange having a larger diameter than the screw head 2b is formed between the root 2a1 and the screw head 2b.

[0071] An external thread 2m is formed on the threaded shaft 2a.

[0072] In the external thread 2m of the water stop bolt 2, two external threads (a first external thread 2m1 and a second external thread 2m2) are formed with a phase shift of π, and the pitch of the two external threads is the same as the internal thread 100n of the scaffolding connection anchor 100. That is, in the external thread 2m of the threaded shaft 2a, the first external thread 2m1 and the second external thread 2m2 having the same pitch p1 as the pitch p1 of the internal thread 100n of the scaffolding connection anchor 100 are respectively formed between the threads of the internal thread 100n.

[0073] like Figure 5 As shown, the first external thread 2m1 contacts the thread ridge 100n1 of the internal thread 100n, and the second external thread 2m2 contacts the thread ridge 100n2 of the internal thread 100n.

[0074] Therefore, the pitch p2 of the external thread 2m (the distance between the first external thread 2m1 and the second external thread 2m2) is smaller than the internal thread 100n of the scaffolding connection anchor 100 (see Figure 2 ) is formed by a pitch p1.

[0075] In addition, the thread height h2 of the external thread 2 m of the water stop bolt 2 is formed to be smaller than the thread height h1 of the internal thread 100 n of the scaffolding anchor 100 .

[0076] For example, this embodiment shows a case where the pitch p2 of the external thread 2m of the water stop bolt 2 is set to 1 / 2 of the pitch p1 of the internal thread 100n of the scaffolding connection anchor 100. In addition, a case where the thread height h2 of the external thread 2m in the water stop bolt 2 is set to 1 / 2 of the thread height h1 of the internal thread 100n of the scaffolding connection anchor 100 is also shown.

[0077] Furthermore, in the first embodiment, the internal thread 100n ( Figure 6 (a) Figure 6 (b)) and the external thread 2m of the water stop bolt 2 ( Figure 7 (a) Figure 7 (b)) have different phases.

[0078] like Figure 6 As shown in (b), the starting point of cutting the internal thread 100n of the scaffold connecting anchor 100 is the starting point 100n0.

[0079] like Figure 7 As shown in (b), the cutting start point of the external thread 2m of the water stop bolt 2 is the starting point 2m0.

[0080] The cutting start point (starting point m0) of the external thread 2m of the water stop bolt 2 is delayed by π (180 degrees) relative to the starting point 100n0 of the internal thread 100n of the scaffolding anchor 100. That is, the external thread 2m of the water stop bolt 2 is delayed by π (180 degrees) relative to the internal thread 100n of the scaffolding anchor 100.

[0081] By making the internal thread 100n of the scaffolding anchor 100 and the external thread 2m of the water stop bolt 2 out of phase, the water stop bolt 2 can be smoothly driven (fitted) by arranging the two external threads 2m of the water stop bolt 2 inside the internal thread 100n of the scaffolding anchor 100.

[0082] The decorative cover 3 is matched with the outer space side of the scaffolding anchor decorative cover member 1. The cover portion 3a of the decorative cover 3 is connected to the outer surface finish Kg of the outer wall K (see Figure 2 ) form the same pattern. For example, when the outer surface finish Kg of the outer wall K is a tile finish, the cover 3a forms a tile finish pattern.

[0083] The decorative cover 3 is formed with a cover portion 3a and a spherical body 3c (see Fig.11 ) of the support shaft 3b. The decorative cover 3 is provided with a structure in which the cover shaft 3d is matched with the sphere 3c of the support shaft 3b. Since the decorative cover 3 has the sphere 3c, the cover 3a can be tilted at a predetermined angle relative to the cover shaft 3d based on an orthogonal positional relationship.

[0084] It should be noted that, as an example, here, the rubber seal 4 is pre-embedded in the root 2a1 of the threaded shaft 2a of the water stop bolt 2. Figure 3 (a) Figure 3 As shown in (b), the rubber seal 4 is formed in an annular shape, and a hole 4a is formed in the center of the annular shape.

[0085] The rubber seal 4 has a main body 4a and a flange 4b. The flange 4b ​​has a tapered portion 4b1 whose diameter gradually increases from the main body 4a. The tapered portion 4b1 is formed to a certain size so that when the scaffolding anchor decorative cover member 1 is driven in, the rubber packing 4 can smoothly slide and seal in the anchor hole k1.

[0086] When the decorative cover member 1 for scaffolding anchor is used, the cover shaft 3d of the decorative cover 3 is inserted into the cover hole 2b1 of the threaded head 2b from the external space side of the water stop bolt 2, so that the annular rubber seal 4 (see Figure 3 (b)) The water stop bolt 2 is elastically deformed and fitted into the root portion 2a1 of the threaded shaft 2a.

[0087] <Installation of the scaffolding anchor decorative cover member 1 to the scaffolding anchor 100>

[0088] Next, a method of attaching the scaffold anchor decorative cover member 1 to the scaffold anchor 100 will be described.

[0089] like Figure 3 As shown in (a), the root 2a1 of the water stop bolt 2 is inserted into the hole 4a to insert the rubber seal 4 (see Figure 2 ).

[0090] Next, the cover shaft 3 d of the decorative cover 3 is fitted into the cover hole 2 b 1 of the threaded head 2 b of the water stop bolt 2 in which the rubber seal 4 is embedded, thereby mounting the decorative cover 3 on the threaded head 2 b of the water stop bolt 2 .

[0091] Then, if Figure 1 As shown, on the outer wall K, the outer thread 2m of the water stop bolt 2 on the scaffolding anchor decorative cover member 1 is matched with the inner thread 100n of the scaffolding anchor 100 in the anchor hole k1, and the scaffolding anchor decorative cover member 1 is knocked into the inner thread 100n of the scaffolding anchor 100. In addition, the decorative cover 3 of the scaffolding anchor decorative cover member 1 is made flush with the outer wall K.

[0092] Compared with a hammer made of metal, a hammer made of plastic is preferred, because the diameter of the hammer is larger than the diameter of the decorative cover 3, so if the hammer hits the decorative cover 3 to the outer wall K, it can be made flush with the outer wall K. Alternatively, a backing plate can be placed and then hit with a metal hammer.

[0093] For example, in the case of pitch and Fig.30 , Fig.31 In the conventional water stop bolt 101 having the same internal thread 100n as the scaffolding connection anchor 100 shown, the height difference of the pitch of the internal thread 100n of the scaffolding connection anchor 100 is generated to the greatest extent between the decorative cover 103 and the outer wall K.

[0094] On the other hand, in the present embodiment, only the height difference of the pitch p2 of the external thread 2m of the water stop bolt 2 is generated.

[0095] The water stop bolt 2 is formed of resin. The pitch p2 of the external thread 2m of the water stop bolt 2 is formed to be smaller than the internal thread 100n of the scaffolding anchor 100 (see Figure 5 ) has a smaller pitch p1, and at the same time, the height h2 of the thread teeth of the external thread 2m of the water stop bolt 2 is formed to be lower than the height h1 of the thread teeth of the internal thread 100n of the scaffold connection anchor 100.

[0096] When the scaffold anchor decorative cover member 1 is driven into the scaffold anchor 100 , the external thread 2 m of the water stop bolt 2 is elastically deformed, so that the water stop bolt 2 can be driven into the scaffold anchor 100 .

[0097] Therefore, it is relatively easy to conceal the anchor hole k1 of the outer wall K. In addition, since the scaffolding anchor decorative cover member 1 is hammered in, it is easy to make the decorative cover 3 of the scaffolding anchor decorative cover member 1 flush with the outer wall K.

[0098] Furthermore, since the structure can be adjusted by knocking in the decorative cover member 1 for the scaffolding connection anchor, the phenomenon of the decorative cover 3 protruding or sinking from the outer wall K can be reduced according to the length of the knocked-in scaffolding connection anchor 100 .

[0099] In this way, the scaffolding anchor decorative cover member 1 is driven into all the anchor holes k1 of the outer wall K, thereby completing the work of hiding the holes k1 (decoration work).

[0100] As described above, the scaffold anchor decorative cover member 1 can be reused in the next construction. That is, it can be removed by removing the decorative cover 3 from the water stop bolt 2 and engaging the thread head 2b with a socket wrench and rotating it.

[0101] In addition, the external thread 2m of the water stop bolt 2 may also be composed of an external thread 2m3 having a pitch p2, where the pitch p2 is 1 / 2 of the pitch of the internal thread 100n of the scaffolding connecting anchor 100.

[0102] <Modification 1>

[0103] like Fig. 9As shown, the modification 1 is provided with one or more chamfered portions 22m1, which are formed by removing the outer peripheral portion of the external thread 22m of the water stop bolt 22 from the thread head 22b side to the front end 22a1 side of the external thread 22m in the axial direction. Except that the pitch of the external thread 22m is 1 / 2 of the pitch p1 of the internal thread 100n of the scaffolding connection anchor 100, the other structures are the same as those of the embodiment 1, and therefore, the same structural elements as those of the embodiment 1 are indicated by the symbols 20 to 29, and no further description is given.

[0104] The threaded shaft 22a of the water stop bolt 22 of Modification 1 is formed with an external thread 22m. As an example, four chamfered portions 22m1 are formed where the outer circumference of the external thread 22m is removed in the axial direction from the thread head 22b side to the front end 22a1 side of the external thread 22m.

[0105] According to the first modification, since the plane chamfered portion 22m1 is formed on the threaded shaft 22a of the water stop bolt 22, and the radius r2 of the chamfered portion 22m1 is smaller than the radius r1 of the external thread 22m, when the scaffolding anchor decorative cover member 1 is driven into the interior of the scaffolding anchor 100, the area where the internal thread 100a of the scaffolding anchor 100 and the external thread 22m of the water stop bolt 22 are interfered with becomes smaller. Therefore, the operation of driving the scaffolding anchor decorative cover member 1 having the water stop bolt 22 into the interior of the scaffolding anchor 100 is made easier.

[0106] Furthermore, by setting the pitch of the external thread 22m of the water stop bolt 22 to 1 / 2 of the pitch p1 of the internal thread 100n of the scaffolding anchor 100 and forming the chamfered portion 22m1, when the water stop bolt 22 is used again in the next construction, it can be removed using a socket wrench corresponding to the thread teeth of the internal thread 100n of the scaffolding anchor 100.

[0107] It should be noted that, in Modification 1, the case where four chamfered portions 22m1 are formed is described as an example, but the above-mentioned effect of Modification 1 can be achieved as long as there is one or more chamfered portions.

[0108] <Modification 2>

[0109] like Fig.12 (a) Fig.12 (b) shows a decorative cover member 31 for scaffolding connection anchor of modification 2 (see Fig.11) has a cover hole 32b1, and the cover hole 32b1 matches the support shaft portion 3b of the decorative cover 3 on the threaded head 32b. In addition, a concave avoidance portion 32b2 is formed at the periphery of the cover hole 32b1, and the avoidance portion 32b2 forms a deformation margin when being inserted into the support shaft portion 3b of the decorative cover 3.

[0110] In addition, the water stop bolt 32 has a flange portion 32c integrally formed between the thread head 32b and the thread shaft 32a for waterproofing.

[0111] like Fig.12 (a) Fig.12 As shown in (b), the flange portion 32c is formed into a disk shape with a predetermined thickness, and the disk shape has an outer peripheral portion 32c1. The outer diameter d2 ( Fig.12 (a) Fig.12 (b)) has a diameter d1 larger than the anchor hole k1 (see Fig.11 ) A larger diameter. In addition, as long as the thickness of the outer peripheral portion 32c1 is within the range of, for example, 0.4 to 0.8 mm, it can be knocked in smoothly.

[0112] Therefore, if Fig.11 As shown, the outer peripheral portion 32c1 of the flange portion 32c can cover the scaffold connection anchor hole k1, thereby sealing the anchor hole k1 of the outer wall K and the external space.

[0113] The relief portion 32b2 on the thread head 32b is formed as a recessed portion, which is annularly concave on the thread head 32b.

[0114] An annular thickness deformation portion 32b3 is formed between the cover hole 32b1 and the escape portion 32b2.

[0115] like Fig.11 As shown, by forming the concave escape portion 32b2 at the periphery of the cover hole 32b1, when the support shaft portion 3b of the sphere 3c with the decorative cover 3 is inserted into the cover hole 32b1, the annular thickness deformation portion 32b3 is elastically deformed and enters the escape portion 32b2. Therefore, the support shaft portion 3b of the sphere 3c with the decorative cover 3 can be smoothly inserted into the cover hole 32b1.

[0116] In addition, if Fig.11 As shown, the cover shaft 3d (see Figure 3 (a)) The decorative cover 3 can be directly embedded in the screw head 32b.

[0117] Therefore, it is easy to mount the decorative cover 3 to the water stop bolt 32 .

[0118] When the scaffolding anchor decorative cover member 31 is inserted into the anchor hole k1, the flange portion 32c of the water stop bolt 32 has a diameter d1 (see FIG. Fig.11 ) Larger outer diameter d2 (see Fig.12 (a)), therefore, the anchor hole k1 can be blocked and sealed by the flange portion 32c (see Fig.11 ).

[0119] In addition, the flange portion 32c having a sealing function is integrally formed with the waterproof bolt 32, so that the waterproof rubber 102p (see Fig.30 , Fig.31 ). Therefore, the number of components can be reduced. In addition, the need to embed the waterproof rubber 102p into the water stop bolt 102 (see Fig.30 ) assembly work, thereby improving assemblability.

[0120] <Variation 3>

[0121] Water stop bolt 42 of modification 3 (see Fig.13 (a)) A guide protrusion piece 42t may be formed protruding from the front end portion 42a1 of the screw shaft 42a.

[0122] like Fig.13 (a) Fig.13 As shown in (b), a pair of guide protrusions 42t protrude from the front end 42a1 of the threaded shaft 42a. The guide protrusions 42t guide the threaded shaft 42a into the interior of the scaffolding anchor 100 so that the scaffolding anchor decorative cover member 41 can be smoothly inserted into the cylinder of the scaffolding anchor 100 when being knocked into the scaffolding anchor 100.

[0123] like Fig.13 As shown in (a), the pair of guide protrusions 42t each have an outer diameter d4 smaller than the outer diameter d3 of the external thread 42m (see Fig.14 ) In other words, the radius r1 of the guide protrusion piece 42t is smaller than the radius r2 of the outer shape of the male thread 42m.

[0124] The guide protrusion piece 42t has a long main body portion 42t1 and a tapered portion 42t2.

[0125] The cone portion 42t2 is formed at the front end of the guide protrusion piece 42t. The cone portion 42t2 has an inclination that is located more inward as it approaches the front end. In addition, a concave cutout 42t3 is formed inside the root of the guide protrusion piece 42t.

[0126] According to the modification 3, the front end portion 42a1 of the threaded shaft 42a of the water stop bolt 42 has a guide protrusion piece 42t, which has an outer diameter d4 and is located inside the inner diameter d3 of the internal thread 100n of the scaffolding anchor 100. Therefore, when the scaffolding anchor decorative cover member 41 is inserted into the cylinder of the scaffolding anchor 100 ( Fig.14 As shown in the arrow a12), the scaffolding anchor decorative cover member 41 can be smoothly knocked into (embedded into) the interior of the scaffolding anchor 100 by the guide protruding piece 42t.

[0127] In addition, since the guide protruding piece 42t has a conical portion 42t2 at the front end thereof and a concave notch 42t3 is formed inside the root of the guide protruding piece 42t, the scaffolding connection anchor 100 of the anchor hole k1 on the outer wall K is shallow, even if the guide protruding piece 42t is connected to the anti-detachment member 101 (see FIG. Figure 3 (a)) The guide protrusion piece 42t can also be flexibly bent inward.

[0128] In addition, although the case where a pair (two) of guide protrusions 42t are formed at the front end portion 42a1 of the externally threaded shaft 42a is described in Modification 3, three or more guide protrusions 42t may be formed. In addition, if three guide protrusions 42t are formed at intervals of about 180 degrees, it is easy to guide on a two-dimensional plane.

[0129] <Variation 4>

[0130] When hammering in the scaffold connection anchor 100, there are shallower and deeper situations.

[0131] According to the depth, different lengths of the scaffolding anchor decorative cover members 1 must be prepared (see Figure 1 ). Therefore, when preparing the water stop bolt 102 and cutting the external thread 102m on site (see Fig.30 ), burrs or warping may occur in the cut portion, preventing the thread from entering smoothly.

[0132] The following modification 4 is a structure to address this problem.

[0133] The decorative cover member 51 for the scaffolding connection anchor of the modification example 4 (see Fig.15 ) has a water stop bolt 52. The water stop bolt 52 has a threaded shaft 52a and a threaded head 52b.

[0134] Furthermore, the threaded shaft 52a of the water stop bolt 52 is provided with a cylindrical non-threaded shaft 52h having no threaded ridges in the axial direction and having a diameter d6 smaller than the diameter d5 of the thread valley 52m0 of the external thread 52m.

[0135] That is, the threaded shaft 52a is provided with two external threads 52m with the non-threaded shaft 52h interposed therebetween.

[0136] When the decorative cover member 51 for the scaffolding anchor is used, the non-threaded shaft 52 h is cut according to the driving depth of the scaffolding anchor 100 .

[0137] like Fig.16 As shown, for example, when the scaffolding connection anchor 100 is driven in shallowly, the internal thread 100n of the scaffolding connection anchor 100 is located at a shallow position, so the cutting is performed at the non-threaded shaft 52h. In addition, the chamfer 52c can be pre-applied to the cutting side of the non-threaded shaft 52h so that the water stop bolt 52 can easily enter the inside of the internal thread 100n of the scaffolding connection anchor 100.

[0138] In the case where the scaffold connecting anchor 100 is driven deeper, the internal thread 100 is located at a deeper position, and therefore, cutting is not performed at the non-threaded shaft 52h.

[0139] According to the fourth modification, the non-threaded shaft 52h of the threaded shaft 52a is cut on site with a cutting wheel or a saw, so that the scaffolding anchor 100 can be smoothly inserted.

[0140] The water stop bolt 52 can be adjusted according to the hammering state of the scaffolding anchor 100 , and thus the cost of molds and inventory can be reduced.

[0141] In addition, although the case where one non-threaded shaft 52h is formed is described in Modification 4, two or more non-threaded shafts 52h may be formed.

[0142] <Variation 5>

[0143] Fig.18 The fifth modification shown is an example in which the decorative cover 63 and the water stop bolt 62 are formed integrally to form the decorative cover portions 61A and 61B for the scaffolding anchor.

[0144] The other structures are the same as those in Example 1, and therefore, the same structures are represented by elements numbered 60 to 69 and will not be described in detail.

[0145] Modification 5 is an example in which a decorative cover 63 is formed integrally with the water stop bolt 62 to constitute a decorative cover portion 62A for a scaffolding anchor.

[0146] Therefore, the number of components can be reduced, and the number of installation steps can be reduced. Therefore, the cost of the decorative cover portion 62A for the scaffolding connection anchor can be reduced.

[0147] Fig.19 Another example of the modification 5 shown is to replace the anchor hole k1 with a diameter d1 (see Fig.11) An example in which a flange portion 62c having a large outer diameter d2 is formed integrally with a decorative cover 63 on a water stop bolt 62 to constitute a decorative cover portion 62B for a scaffold connection anchor.

[0148] The water stop bolt 62 has a waterproof flange portion 62c integrally formed between a thread head 62b and a thread shaft 62a.

[0149] The flange portion 62c is formed with an outer peripheral portion 62c1 for covering, and the outer peripheral portion 62c1 has a diameter d1 (see Fig.11 ) Large outer diameter d2.

[0150] According to the scaffold anchor decorative cover portion 62B of another example of Modification 5, since the decorative cover 63 and the flange portion 62 c are integrally formed with the water stop bolt 62 , the number of components can be further reduced. In addition, the number of installation steps can be further reduced.

[0151] Therefore, the decorative cover members 62A and 62B for scaffold connection anchors can be obtained at low cost.

[0152] <Variation 6>

[0153] The decorative cover member 71 for the scaffolding connection anchor of the modification example 6 (see Fig. 20 ) is a structure in which the decorative cover 73 can be flexibly bent relative to the water stop bolt 42.

[0154] The other structures are the same as those in Example 4, so the same structural elements are marked with the same numbers and will not be repeated.

[0155] In the decorative cover member 71 for scaffolding anchor of Modification 6, a decorative cover 73 is fitted into the cover hole of the water stop bolt 42, wherein the rubber seal 4 is fitted into the cover hole. A pair of inner protruding pieces 42t are formed to protrude from the front end portion 42a1 of the threaded shaft 42a.

[0156] The cover portion 73 a and the support shaft portion 73 b of the decorative cover 73 are integrally formed using resin or metal.

[0157] The base portion 73b1 of the support shaft portion 73b is configured to become thinner as it approaches the cover portion 73a and is bendable relative to the cover portion 73a.

[0158] Therefore, if Fig. 20 As shown, even if the scaffold anchor decorative cover member 71 is driven into the scaffold anchor 100 of the outer wall K and tilts, the outer surface 73a1 of the cover portion 73a of the decorative cover 73 can be along the outer surface Kg of the outer wall K.

[0159] <Variation 7>

[0160] The decorative cover member 91 for the scaffolding connection anchor of the modification example 7 (see Fig. 22 (b)) is a change type of variant example 6.

[0161] like Fig. 22 As shown in (a), the decorative cover 93 of the modification 7 includes a cover portion 93a and a support shaft portion 93b.

[0162] The support shaft portion 93b is formed of a weather-resistant resin. The support shaft portion 93b is formed with a ball portion 93b1, a cylindrical shaft portion 93b2, and a thin connection portion 93b3 connecting the ball portion 93b1 and the shaft portion 93b2. The connection portion 93b3 has a shape in which the diameter gradually decreases from the shaft portion 93b2 toward the ball portion 93b1.

[0163] The cover 93a is a disk-shaped member made of metal or resin. The cover 93a includes a disk-shaped outer plate 93a1 and a connecting plate 93a2 having a smaller diameter than the outer plate 93a1 and being thicker. The ball portion 93b1 supporting the shaft portion 93b is molded into the connecting plate 93a2.

[0164] exist Fig. 22 (b) shows an example of a state in which the scaffolding anchor decorative cover member 91 is provided on the scaffolding anchor 100 hammered in at an angle of 10° with respect to the direction perpendicular to the outer surface Kg of the outer wall K.

[0165] Fig.23 (a) shows a front cross-sectional view of an example of a decorative cover 193 of another company's product as an existing product. Fig.23 (b) is a cross-sectional view showing an example of a state in which a scaffold anchor decorative cover member 191 of another company's product, which is a conventional product, is provided inside the scaffold anchor 100 .

[0166] The decorative cover 193 includes a cover portion 193 a and a support shaft portion 193 b .

[0167] The cover 193a is made of metal, and the disc portion 193a1 and the ball portion 193a2 of the cover 193a are connected via a thin metal shaft 193a3.

[0168] The support shaft portion 193b is a substantially cylindrical member made of resin. A slit 193b1 is formed in the support shaft portion 193b. A ball portion 193a2 of the cover portion 193a is insert-molded in the support shaft portion 193b.

[0169] In the decorative cover 193, the position of the ball portion 193a2 as a sphere is away from the surface of the cover portion 193a. Fig.23As shown in (a), the axial length s11 of the support shaft portion 193b of the decorative cover 193 is 3.95 mm. Therefore, after the decorative cover 193 is driven in, the gap s12 between the anchor hole k1 and the cover portion 193a is, for example, 0.84 mm.

[0170] And in Fig. 22 In the decorative cover 93 of the modification 7 shown in (a), the position of the ball part 93a2 as a sphere is close to the surface of the cover part 93a. For example, the axial length s1 of the support shaft part 93b of the decorative cover 93 is 1.8 mm. Therefore, after the decorative cover 93 is driven in, the gap s2 between the anchor hole k1 and the cover part 93a can be, for example, 0.46 mm.

[0171] Compared with the decorative cover 193 , in the decorative cover 93 of the seventh modification, the gap s2 between the anchor hole k1 and the cover portion 93 a is improved to about half of the original gap s2 .

[0172] The effect of the decorative cover 93 of the above-mentioned modification example 7 is better than the effect of the decorative cover 73 of the above-mentioned modification example 6.

[0173] <Example 2>

[0174] Fig.24 The scaffold anchor decorative cover member 1A of the second embodiment shown in (a) is a combination of the first embodiment, the first modification, and the third modification.

[0175] like Fig.24 As shown in (b), the outer thread 82m of the water stop bolt 82 is formed by a first outer thread 2m1 and a second outer thread 2m2, wherein the first outer thread 2m1 and the second outer thread 2m2 are connected to the inner thread 100n of the scaffolding connection anchor 100 (see Figure 3 (a)) The same pitch is formed by shifting the phase by π. In addition, there is one or more chamfered parts 82m1, which are obtained by removing the outer peripheral part of the external thread 82m from the external thread head 82b side to the front end 82a1 side of the external thread 82m along the axial direction.

[0176] Fig.24 (a)~ Fig.24 (c) shows an example in which four chamfered portions 82m1 are formed. The height of the thread of the external thread 82m of the water stop bolt 82 is formed to be lower than the height of the thread of the internal thread 100n of the scaffolding anchor 100.

[0177] A pair of guide protrusion pieces 82t are formed to protrude from the front end portion 82a1 of the screw shaft 82a.

[0178] The guide protrusion piece 82t has a long main body 82t1 and a tapered portion 82t2. The tapered portion 82t2 has an inclination that is located more inward toward the front end at the front end of the guide protrusion piece 82t. In addition, a concave cutout 82t3 is formed inside the root of the guide protrusion piece 82t.

[0179] According to Embodiment 2, since the chamfered portion 82m1 is formed by removing the outer peripheral portion of the external thread 82m in the axial direction from the thread head 82b side to the front end 82a1 side of the external thread 82m, it can be knocked into (fitted with) the anchor hole k1 of the external wall K more smoothly.

[0180] In addition, the external thread 82m of the water stop bolt 82 has a chamfered portion 82m1. Therefore, when the scaffolding anchor decorative cover member 1A is driven into the interior of the scaffolding anchor 100, the axial overlap area between the internal thread 100n of the scaffolding anchor 100 and the external thread 82m of the scaffolding anchor decorative cover member 1A is reduced, so that it can be driven smoothly and easily.

[0181] In addition, the water stop bolt 82 has a guide protrusion 82t at the front end, and the guide protrusion 82t has a tapered portion 82t2 and a concave cutout 82t3, so that when the scaffolding anchor decorative cover member 1A is driven into the inside of the scaffolding anchor 100, it can be driven smoothly by being guided by the guide protrusion 82t. In addition, the external thread 82m of the water stop bolt 82 may be composed of an external thread 2m3 having a pitch p2 of 1 / 2 of the internal thread 100n of the scaffolding anchor 100.

[0182] <Variant 8>

[0183] The decorative cover 113 of the eighth modification is a modified version of the decorative cover 73 of the sixth modification.

[0184] like Fig.25 As shown, the cover portion 113 a and the support shaft portion 113 b of the decorative cover 113 of Modification 8 are integrally formed using resin or metal.

[0185] At the root of the support shaft 113b, a small diameter portion 113b1, a stopper portion 113b2, and an inclined surface portion 113b3 are formed in order from the cover 113a side. The small diameter portion 113b1 is connected to the center of the cover 113a, and the cover 113a is formed to be thin so as to be bendable relative to the support shaft 113b.

[0186] The locking portion 113b2 has a protrusion with a diameter larger than that of the small diameter portion 113b1. The protrusion is connected to the small diameter portion 113b1, and gradually increases in diameter as it approaches the front end side of the support shaft portion 113b, and then slightly decreases in diameter. The cross section of the protrusion is triangular, and it is formed into a ring along the circumferential direction.

[0187] The inclined surface 113b3 is connected from the front end of the locking portion 113b2, and its diameter gradually increases as it approaches the front end side of the support shaft portion 113b (away from the cover portion 113a), and the inclined surface 113b3 is connected to the outer peripheral surface of the support shaft portion 113b.

[0188] The decorative cover 113 of the eighth modification can be used in place of the decorative cover 3 of the first embodiment, the decorative cover 73 of the sixth modification, and the decorative cover 93 of the seventh modification.

[0189] According to the decorative cover 113 of such a structure, when the decorative cover 113 is inserted into the water stop bolt 112, if the small diameter portion 113b1 is broken and the cover falls off, the support shaft portion 113b can be removed. Specifically, the support shaft portion 113b can be easily removed by clamping the locking portion 113b2 with a tool such as flat-nosed pliers and pulling it out.

[0190] <Variant 9>

[0191] The rubber seal 114 of the modification 9 is installed on the water stop bolt in the opposite direction to the rubber seal 4 of the embodiment 1. The rubber seal 114 is cylindrical and is pre-embedded in the root of the threaded shaft 112a of the water stop bolt 112. Fig.26 As shown, the rubber seal 114 has a main body 114a and a flange 114b. The flange 114b has an annular portion 114b1, which is a truncated cone shape whose diameter gradually decreases as it moves away from the main body 4a. The annular portion 114b1 is formed to a certain size so that when the decorative cover member 111 for the scaffolding connection anchor is knocked in, the rubber seal 114 can smoothly slide on the inner peripheral surface of the anchor hole k1 and seal. The rubber seal 114 is embedded in the root of the threaded shaft 112a in a manner that the flange 114b is located closer to the front end side of the threaded shaft 112a than the main body 114a.

[0192] The rubber seal 114 of the ninth modification can be used in place of the rubber seal 4 of the first and second embodiments, and can be mounted on the water stop bolts of the first to fifth modifications.

[0193] According to the rubber seal 114 of such a structure, when the water stop bolt 112 equipped with the rubber seal 114 is inserted into the hole k1, the flange portion 114b does not get caught on the inner peripheral surface of the hole k1, so that the water stop bolt 112 can be smoothly inserted. In addition, since the flange portion 114b is away from the thread head 112b, it is easy to deform, and the water stop bolt 112 is more easily inserted into the hole k1.

[0194] <Variation 10>

[0195] The water stop bolt 112 of the modification 10 has a threaded shaft 112a and a threaded head 112b. Fig. 27 and Fig.28 As shown, on the inner side of the threaded shaft 112a, a wrench hole 115 is provided along the axial direction, and the wrench hole 115 is for inserting a rod-shaped wrench (not shown). The cross section of the wrench hole 115 of this modification is polygonal (a hexagonal hole shape in this modification 10), and a hexagonal wrench is inserted. The wrench hole 115 is connected from the opening 116 on the surface of the threaded head 112b. The opening 116 is a circular hole with a diameter larger than the hexagonal hole of the wrench hole 115. The outer end of the opening 116 is formed with a tapered portion 116a whose diameter increases toward the outside. The wrench hole 115 also serves as a cover hole 112b1, and the support shaft portion 113b of the decorative cover 113 is embedded in the cover hole 112b1. The axial dimension and the inner diameter dimension of the wrench hole 115 are set according to the shape of the support shaft portion 113b. It should be noted that the shape of the wrench hole 115 is not limited to a hexagon, as long as its cross section is a polygon, it can also be other polygons or other shapes such as a star that match the cross-sectional shape of the wrench. It should be noted that a star is also included in a polygon.

[0196] The water stop bolt 112 of the modification 10 can be used instead of the water stop bolt 2 of the first embodiment and the water stop bolt 82 of the second embodiment.

[0197] According to the water stop bolt 112 of such a structure, the axial length of the thread head 112b can be shortened compared to the case where a socket wrench is put on the thread head 112b to remove and install the water stop bolt 112. Therefore, the area where rainwater that penetrates from the gap between the decorative cover 113 and the hole k1 is retained can be reduced. In addition, the axial dimension of the wrench hole 115 can be sufficiently ensured, so that the water stop bolt 112 can be reliably rotated.

[0198] <Example 3>>

[0199] Fig.29 The scaffolding anchor decorative cover member 111 of the third embodiment shown is a combination of the first embodiment, the eighth modification, the ninth modification, and the tenth modification. The anchor decorative cover member 111 of the third embodiment is different from the first embodiment in the shape of the decorative cover 113 inserted into the water stop bolt 112, the shape of the rubber seal 114 embedded in the root of the threaded shaft 112a of the water stop bolt 112, and the shape of the water stop bolt 112. In addition, the water stop bolt 112 is formed with a pair of guide protrusions 112t protruding from the front end 112a1 of the threaded shaft 112a.

[0200] The other structures are the same as those in Example 1, and the same components are marked with the same figure marks and will not be repeated.

[0201] The water stop bolt 112 of this embodiment is screwed to the internal thread 100n of the scaffolding anchor 100 using a hexagonal wrench. The support shaft portion 113b of the decorative cover 113 of the modified example 8 is embedded in the cover hole 112b1 of the water stop bolt 112 of the anchor decorative cover member 111. The rubber seal 114 of the modified example 9 is matched to the root of the threaded shaft 112a of the water stop bolt 112. The rubber seal is embedded in the root of the threaded shaft 112a in such a way that the flange portion 114b is located closer to the front end side of the threaded shaft 112a than the main body portion 114a.

[0202] According to the third embodiment, when the decorative cover 113 is tilted, even if the small diameter portion 113b1 is broken and the cover portion 113a falls off, the support shaft portion 113b can be easily removed by clamping the locking portion 113b2 with a tool such as flat-nosed pliers and pulling it out.

[0203] In addition, the flange portion 114b of the rubber seal 114 has a tapered portion 114b1 with a small diameter at the front end side in the insertion direction. Therefore, when the water stop bolt 112 is inserted into the hole k1, the flange portion 114b of the rubber seal 114 does not get caught on the inner peripheral surface of the hole k1, and the water stop bolt 112 can be smoothly inserted. In addition, since the flange portion 114b is away from the thread head 112b, it is easy to deform, and the water stop bolt 112 is easier to insert into the hole k1.

[0204] Furthermore, since the water stop bolt 112 has a wrench hole 115 formed inside the threaded shaft 112a, the axial length of the threaded head 112b can be shortened compared to the case where a socket wrench is put on the threaded head 112b to remove and assemble the water stop bolt 112. Therefore, the area where rainwater that penetrates from the gap between the decorative cover 113 and the hole k1 is retained can be reduced. Furthermore, the water stop bolt 112 installed in the scaffolding connection anchor 100 can be removed by inserting a wrench into the wrench hole 115 and rotating it after removing the decorative cover 113.

[0205] <Other embodiments>

[0206] 1. Various configurations are described in the first and second embodiments and modifications 1 to 6, but at least a portion of the first and second embodiments and modifications 1 to 6 may be adopted. For example, the configurations of the first and second embodiments and modifications 1 to 6 described may be appropriately selected and combined.

[0207] 2. The structures described in the above-mentioned embodiments 1, 2, and modifications 1 to 6 are examples of the present invention, and may be in other various forms within the scope of the claims. In addition, the water stop bolts shown in the embodiments and modifications may also be replaced with existing decorative covers (such as Fig.23 The support shaft portion (a)) is inserted into the cover hole of the screw head for use.

[0208] Explanation of symbols

[0209] 1, 1A, 31, 41, 51, 61A, 61B, 71, 91 Decorative cover components (inserts) for scaffolding connection anchors

[0210] 2, 22, 32, 42, 52, 62, 72, 82 water stop bolts

[0211] 2b, 22b, 32b, 52b, 82b thread head

[0212] 2b1 Cover hole

[0213] 2m1 First external thread (two external threads formed in the middle of each thread tooth)

[0214] 2m2 Second external thread (two external threads formed in the middle of each thread tooth)

[0215] 3, 63, 73, 93 Decorative cover

[0216] 32b2 Avoidance

[0217] 32c Flange

[0218] 32c1 Periphery

[0219] 42a1, 82a1 front end

[0220] 42t, 82t guide tab

[0221] 42t3, 82t3 cutout

[0222] 52c Chamfer (chamfered corner)

[0223] 52h Non-threaded shaft

[0224] 63 Decorative cover formed on the thread head

[0225] 100n internal thread

[0226] h1 Height of the internal thread

[0227] h2 Height of the thread teeth of the external thread

[0228] p1 Pitch of internal thread

[0229] p2 Pitch of external thread

[0230] θ phase.

Claims

1. A water stop bolt, characterized in that: have: A threaded shaft, the threaded shaft having two external threads, the external threads being knocked into the internal threads formed in the barrel of a cylindrical insert, the cylindrical insert being used to connect the wall scaffolding; A threaded head, wherein the threaded head forms a cover hole at one end of the threaded shaft, and a decorative cover is provided on the cover hole. The threaded shaft and the threaded head are formed integrally with each other by resin; The pitch of each of the external threads is the same as the pitch of the internal thread, and the two external threads are formed in the middle of their respective thread teeth, The height of the thread teeth of the external thread is lower than the height of the thread teeth of the internal thread, The water stop bolt has one or more chamfered portions, wherein the chamfered portions are formed by removing the outer peripheral portion of the external thread of the water stop bolt from the thread head side to the thread tip side in the axial direction. The water stop bolt has a guide protrusion piece that protrudes from a front end portion of the threaded shaft and guides the threaded shaft into the cylinder of the insert.

2. A water stop bolt, characterized in that: have: A threaded shaft, the threaded shaft having an external thread, the external thread being knocked into the tube of a cylindrical insert to form an internal thread, the cylindrical insert being used to connect a wall scaffold; A threaded head, wherein the threaded head forms a cover hole at one end of the threaded shaft, and a decorative cover is provided on the cover hole; The threaded shaft and the threaded head are formed integrally with resin. The pitch of the external thread is smaller than the pitch of the internal thread, and the height of the thread teeth of the external thread is lower than the height of the thread teeth of the internal thread, The water stop bolt has one or more chamfered portions, wherein the chamfered portions are formed by removing the outer peripheral portion of the external thread of the water stop bolt from the thread head side to the thread tip side in the axial direction. The water stop bolt has a guide protrusion piece that protrudes from a front end portion of the threaded shaft and guides the threaded shaft into the cylinder of the insert.

3. The water stop bolt according to claim 1 or 2, characterized in that: The thread cutting start phases of the external thread of the water stop bolt and the internal thread of the insert are different.

4. The water stop bolt according to claim 1, characterized in that: The threaded head has a cover hole, which matches the supporting shaft of the decorative cover. A concave avoidance portion is formed around the cover hole, and the avoidance portion forms a deformation margin when the supporting shaft of the decorative cover is embedded.

5. The water stop bolt according to claim 1, characterized in that: The waterproof bolt is integrally formed with a flange portion for waterproofing, and the flange portion for waterproofing forms an outer peripheral portion for covering between a thread head and an external thread, and the diameter of the outer peripheral portion is larger than the diameter of the anchor hole.

6. The water stop bolt according to claim 1, characterized in that: The guide protrusion is formed with a concave cutout at the inner side of the root portion, and the front end portion thereof is inclined gradually approaching the axis of the water stop bolt from the inside to the outside.

7. The water stop bolt according to claim 1, characterized in that: The threaded shaft of the water stop bolt is provided with a cylindrical non-threaded shaft in the axial direction with a diameter smaller than the thread valley of the external thread, and the non-threaded shaft is not formed with thread teeth.

8. The water stop bolt according to claim 1, characterized in that: The decorative cover includes a cover and a shaft portion, wherein the shaft portion is formed integrally with the cover and a direction of the shaft portion can be changed relative to the cover.

9. A decorative cover component, characterized in that: have: The water stop bolt according to any one of claims 1 to 8; and The decorative cover is arranged on the cover hole of the threaded head.

10. The decorative cover member according to claim 9, wherein: The decorative cover includes a cover and a shaft portion, wherein the shaft portion is formed integrally with the cover and a direction of the shaft portion can be changed relative to the cover.

11. The decorative cover member according to claim 10, wherein: At the root of the cover side of the shaft portion, a small diameter portion, a stop portion, and an inclined surface portion are formed in sequence from the cover side, the stop portion having a protrusion with a diameter larger than that of the small diameter portion, and the inclined surface portion is connected to the stop portion and its diameter gradually increases as it moves away from the cover side.

12. The decorative cover member according to any one of claims 9 to 11, characterized in that The decorative cover component also has a rubber seal, which cooperates with the root of the threaded shaft of the water stop bolt. The rubber seal has a cylindrical main body and a flange. The flange portion is arranged closer to the threaded shaft than the main body portion, and has an annular portion whose diameter gradually decreases as it moves away from the main body portion.

13. A decorative cover component, characterized in that: have: A threaded shaft, the threaded shaft having an external thread, the external thread being knocked into the tube of a cylindrical insert to form an internal thread, the cylindrical insert being used to connect a wall scaffold; The threaded head is provided with a decorative cover at one end of the threaded shaft; the threaded shaft, the threaded head and the decorative cover are formed as a whole by resin. The pitch of the external thread is less than or equal to the pitch of the internal thread, and the height of the thread teeth of the external thread is lower than the height of the thread teeth of the internal thread, The water stop bolt has one or more chamfered portions, wherein the chamfered portions are formed by removing the outer peripheral portion of the external thread of the water stop bolt from the thread head side to the thread tip side in the axial direction. The water stop bolt has a guide protrusion piece that protrudes from a front end portion of the threaded shaft and guides the threaded shaft into the cylinder of the insert.

14. A method for installing a decorative cover component, characterized in that: The decorative cover provided on the threaded head of the water stop bolt according to any one of claims 1 to 8 is knocked into the internal thread formed in the cylinder of the cylindrical insert, so that the decorative cover is flush with the outer wall of the building, wherein the cylindrical insert is used for the scaffolding of the outer wall of the building.

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