Tie device for external scaffold and structural surface

Abstract

The utility model provides a pulling device for an external scaffold and a structural surface, which comprises an L-shaped arm, a smooth part and a threaded part, a fixed angle block is arranged at the corner of the smooth part, one end of the smooth part is detachably connected with a limiting arm through a mortise and tenon joint buckle, a movable angle block is arranged on the threaded part in a sliding manner, the threaded part is in threaded connection with a nut, and the nut is in threaded connection with the fixed angle block. The nut abuts against the movable angle block. A building structure body (such as a stand column and a steel structure) is clamped through the fixed angle block and the movable angle block, then the nut is rotated to drive the movable angle block to be close to the fixed angle block, so that the building structure body is clamped, the limiting arm detachably connected to one end of the L-shaped arm through the mortise and tenon joint buckle is connected with the external scaffold, and pulling of the external scaffold is formed. The external scaffold is fixed, and the problem that the external scaffold shakes and collapses is avoided; the problem that in the prior art, when an existing external scaffold is tied and fixed, if a pre-embedded fixing structure does not exist, tying of the external scaffold is not stable is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a pulling device for connecting an external scaffolding to a structural surface. Background Art

[0002] External scaffolding refers to the scaffolding erected outside the building, which is mostly used for exterior wall masonry, facade decoration and round steel concrete projects. It is a working platform set up to ensure the smooth progress of each construction process. Wall connectors are an important part of the external scaffolding. They are components that strengthen the stability of the scaffolding by connecting to reliable fixed ends (such as walls, etc.).

[0003] For example, the Chinese utility model with announcement number CN217812293U discloses "a device for tying an external scaffold to a structural surface". During use, the device welds the embedded plate to the vertical round steel, and then welds the horizontal round steel to the vertical round steel 1 to form an embedded part, which is then tied to the steel bars of the structural beam, and then concrete is poured to embed the embedded part into the structural beam, and then the first clamping ring and the second clamping ring are abutted against the outer wall of the steel pipe, and the first clamping ring and the second clamping ring are fixed by bolts, and then the first screw is passed through the exposed plate and fixed by the first nut, so that the steel pipe and the exposed plate are fixed. Due to the small size of the vertical round steel, the horizontal round steel and the embedded plate, when the scaffold is dismantled, the leakage risk caused by the external scaffolding pulling node in the subsequent construction process is effectively reduced, thereby reducing the construction quality risk.

[0004] However, in actual construction, due to various reasons, such as construction condition restrictions, structural design requirements, etc., it may not be possible to pre-embed fixed structures on the structural surface. Without pre-embedded fixes, this brings difficulties to the scaffolding tie-down. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a device for tying an external scaffold to a structural surface, which solves the problem in the prior art that the tying and fixing of the existing external scaffold will be unstable if there is no pre-buried fixing structure.

[0006] According to an embodiment of the utility model, a tensioning device for an external scaffolding and a structural surface comprises an L-shaped arm, comprising a smooth portion and a threaded portion, a fixed angle block is arranged at a corner of the smooth portion, and one end is detachably connected to a limiting arm through a mortise and tenon buckle, a movable angle block is slidably arranged on the threaded portion, wherein a nut is threadedly connected to the threaded portion, the nut abuts against the movable angle block, the nut is used to adjust the relative position of the movable angle block and the fixed angle block, the movable angle block and the fixed angle block are used to clamp the building structure body, and the limiting arm is used to connect the scaffolding body.

[0007] Compared with the prior art, the utility model has the following beneficial effects: the building structure body (such as columns, steel structures) is clamped by fixed corner blocks and movable corner blocks, and then the nut is rotated to drive the movable corner block close to the fixed corner block, thereby clamping the building structure body, and the limit arm detachably connected to one end of the L-shaped arm through mortise and tenon buckles is connected to the external scaffolding to form a tie for the external scaffolding, fix the external scaffolding to prevent it from shaking and collapsing. The building structure is an indispensable part of the building structure, so the practicality of the device can be guaranteed, and the problem that the external scaffolding cannot be stably fixed when there are no pre-embedded fixings can be avoided. At the same time, the cumbersome process of pre-embedded fixings in the early stage and the later processing of the pre-embedded fixings is avoided. Since no pre-embedded fixings are used, the structural surface will not be damaged, thereby reducing the risk of construction quality.

[0008] Preferably, the mortise and tenon buckle includes a sub-buckle, a mother buckle and a limiting bolt threadedly connected to the mother buckle, the sub-buckle is fixedly connected to the smooth part, and the mother buckle is fixedly connected to the limiting arm, wherein the sub-buckle and the mother buckle are connected by mortise and tenon, and a limiting plate is provided on each side of the sub-buckle and the mother buckle.

[0009] Preferably, a bottom plate is provided on one side of the female buckle, the limiting bolt is threadedly connected to the bottom plate, and the sub-buckle is provided with a rectangular groove, and the bottom plate is located in the rectangular groove.

[0010] Preferably, at least one set of tripod buckles is slidably provided on the limiting arm, and the tripod buckles are used to connect the scaffold body.

[0011] Preferably, reinforcing ribs are provided on the movable corner block, and half ring sleeves are hinged on the upper and lower sides of the reinforcing ribs. The ends of the two half ring sleeves away from the hinge point are abutted and fixed to each other by a limiting device, wherein a travel groove is opened in the threaded part, the reinforcing ribs are inserted into the travel groove, and the two half ring sleeves are sleeved on the threaded part.

[0012] Preferably, the limiting device comprises limiting teeth and a buckle, the limiting teeth and the buckle are respectively arranged on corresponding half ring sleeves, and the buckle is clamped on the limiting teeth.

[0013] Preferably, the upper half ring sleeve is provided with ratchet teeth, and a ratchet wheel is provided on a side of the nut close to the half ring sleeve, and the ratchet teeth are clamped on the ratchet wheel.

[0014] Preferably, rubber pads are provided on the sides of the fixed corner blocks and the movable corner blocks facing the building structure body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the structure of the mortise and tenon buckle in the embodiment of the utility model.

[0017] Figure 3It is a schematic structural diagram of an L-shaped arm in an embodiment of the utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the movable corner block in the embodiment of the utility model.

[0019] Figure 5 It is a schematic diagram of the use of an embodiment of the utility model.

[0020] In the above drawings: 1. L-shaped arm; 101. fixed angle block; 102. rubber pad; 103. limit arm; 104. tripod buckle; 105. threaded part; 106. travel groove; 107. smooth part; 2. mortise and tenon buckle; 201. sub-buckle; 202. female buckle; 203. bottom plate; 204. limit bolt; 205. rectangular groove; 206. limit plate; 3. movable angle block; 301. ratchet; 302. semi-ring; 303. limit tooth; 304. buckle; 305. reinforcing rib; 4. nut; 401. ratchet; 001. scaffolding body; 002. building structure body. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figures 1 to 5 As shown, an embodiment of the utility model proposes a tensioning device for an external scaffolding and a structural surface, which includes an L-shaped arm 1, including a smooth portion 107 and a threaded portion 105, a fixed angle block 101 is arranged at a corner of the smooth portion 107, and one end is detachably connected to a limiting arm 103 through a mortise and tenon buckle 2, a movable angle block 3 is slidably arranged on the threaded portion 105, wherein the threaded portion 105 is threadedly connected with a nut 4, the nut 4 abuts against the movable angle block 3, the nut 4 is used to adjust the relative position of the movable angle block 3 and the fixed angle block 101, the movable angle block 3 and the fixed angle block 101 are used to clamp the building structure body 002, and the limiting arm 103 is used to connect the scaffold body 001.

[0023] The detailed working process of this embodiment is: the building structure (such as a column, a steel structure) is clamped by the fixed corner block 101 and the movable corner block 3, and then the nut 4 is rotated to drive the movable corner block 3 to approach the fixed corner block 101, thereby clamping the building structure, and the limiting arm 103 which is detachably connected to one end of the L-shaped arm 1 through the mortise and tenon buckle 2 is connected to the external scaffolding to form a tie for the external scaffolding, fix the external scaffolding to prevent it from shaking and collapsing. The building structure is an indispensable part in the construction project, so the practicality of the device can be guaranteed, and the problem that the external scaffolding cannot be stably fixed when there are no pre-embedded fixings can be avoided.

[0024] On the other hand, in construction without embedded fixings, steel pipes and their matching clips are usually used to fix the external scaffolding. This method requires more bolt connections and is time-consuming and laborious during disassembly and installation. The present device is easy and quick to install and disassemble, which can save installation time, and the fixation of the external scaffolding is stable and reliable.

[0025] like Figure 2 As shown, the mortise and tenon buckle 2 includes a sub-buckle 201, a female buckle 202 and a limiting bolt 204 threadedly connected to the female buckle 202, the sub-buckle 201 is fixedly connected to the smooth portion 107, and the female buckle 202 is fixedly connected to the limiting arm 103, wherein the sub-buckle 201 and the female buckle 202 are connected by mortise and tenon, and a limiting plate 206 is provided on each side of the sub-buckle 201 and the female buckle 202.

[0026] like Figure 2 As shown, a bottom plate 203 is provided on one side of the mother buckle 202 , a limiting bolt 204 is threadedly connected to the bottom plate 203 , and a rectangular groove 205 is opened on the sub-buckle 201 , and the bottom plate 203 is located in the rectangular groove 205 .

[0027] The detailed working process of this embodiment is as follows: the function of the mortise and tenon buckle 2 is to facilitate the removal of the limit arm 103. Since the scaffolding may need to be adjusted or moved during the construction process, and the limit arm 103 needs to extend out of the building structure when fixing the scaffolding, in order to avoid interference in the process of moving the scaffolding, when interference occurs, the limit arm 103 can be removed, avoiding frequent removal of the L-shaped arm 1, which will cause the stability of its connection with the building structure.

[0028] The function of the limiting plate 206 is to prevent the sub-buckle 201 and the mother buckle 202 which are mortise and tenoned with each other from sliding against each other. The sub-buckle 201 and the mother buckle 202 are mutually clamped when mortise and tenoned with each other, and then the limiting bolt 204 is threadedly connected to the bottom plate 203. At this time, the two sub-buckles 201 and the mother buckle 202 which are mortise and tenoned with each other form a whole and cannot be disassembled. When disassembly is required, the limiting bolt 204 needs to be unscrewed to separate the two sub-buckles 201 and the mother buckle 202 which are mortise and tenoned with each other, thereby removing the limiting arm 103.

[0029] like Figure 1 and Figure 5 As shown, at least one set of tripod buckles 104 is slidably provided on the limiting arm 103 , and the tripod buckles 104 are used to connect the scaffold body 001 .

[0030] The detailed working process of this embodiment is as follows: the scaffold body 001 is fixedly connected to the limiting arm 103 through the scaffold buckle 104, so as to prevent the scaffold body 001 from shaking during use.

[0031] like Figure 3 and Figure 4As shown, a reinforcing rib 305 is provided on the movable corner block 3, and a half ring sleeve 302 is hinged on the upper and lower sides of the reinforcing rib 305. The ends of the two half ring sleeves 302 away from the hinge point are abutted and fixed to each other by a limiting device, wherein a travel groove 106 is opened in the threaded portion 105, the reinforcing rib 305 is inserted into the travel groove 106, and the two half ring sleeves 302 are sleeved on the threaded portion 105.

[0032] like Figure 4 As shown, the limiting device includes a limiting tooth 303 and a buckle 304 . The limiting tooth 303 and the buckle 304 are respectively arranged on the corresponding half ring sleeve 302 , and the buckle 304 is clamped on the limiting tooth 303 .

[0033] The detailed working process of this embodiment is as follows: through the cooperation of the two half-ring sleeves 302 and the reinforcing ribs 305, the movable corner block 3 can slide on the threaded portion 105 without rotating, and the function of the two half-ring sleeves 302 is to enhance the connection strength between the movable corner block 3 and the threaded portion 105 to improve its stability, and the movable corner block 3 is driven to approach the fixed corner block 101 by rotating the nut 4 to clamp the building structure. When in use, first withdraw the reinforcing rib 305 into the stroke groove 106, and then close the two half-ring sleeves 302 so that the buckle 304 is clamped on the limiting tooth 303, and then adjust the relative distance between the movable corner block 3 and the fixed corner block 101 according to the width of the building structure, and then clamp the movable corner block 3 and the fixed corner block 101 on the building structure, and rotate the nut 4 to drive the movable corner block 3 close to the fixed angle block 101 to clamp the building structure.

[0034] like Figure 3 As shown, the upper half ring sleeve 302 is provided with a ratchet 301 , and a ratchet 401 is provided on one side of the nut 4 close to the half ring sleeve 302 , and the ratchet 301 is clamped on the ratchet 401 .

[0035] The detailed working process of this embodiment is as follows: with the cooperation of the ratchet 401 and the ratchet teeth 301, the nut 4 can be prevented from self-rotating during the force-bearing process, resulting in a weakening of the clamping force between the movable angle block 3 and the fixed angle block 101, thereby losing the fixation of the scaffold.

[0036] like Figure 1 As shown, a rubber pad 102 is provided on one side of the fixed corner block 101 and the movable corner block 3 facing the building structure body 002 .

[0037] The detailed working process of this embodiment is as follows: the function of the rubber pad 102 is to prevent the fixed corner block 101 and the movable corner block 3 from directly and rigidly contacting the building structure body 002 , thereby causing wear to the building structure body 002 .

[0038] The implementation principle of the embodiment of the present application is: when in use, first withdraw the reinforcing rib 305 into the travel groove 106, then close the two half rings 302, so that the buckle 304 is clamped on the limiting tooth 303, then adjust the relative distance between the movable corner block 3 and the fixed corner block 101 according to the width of the building structure, then clamp the movable corner block 3 and the fixed corner block 101 on the building structure, rotate the nut 4 to drive the movable corner block 3 close to the fixed angle block 101, so as to clamp the building structure, and then connect the limiting arm 103 extending out of the building structure to the external scaffolding, so as to fix the external scaffolding.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A device for tying an external scaffold to a structural surface, characterized in that: include: The L-shaped arm (1) comprises a smooth portion (107) and a threaded portion (105); a fixed angle block (101) is arranged at a corner of the smooth portion (107), and one end is detachably connected to a limiting arm (103) through a mortise and tenon joint (2); a movable angle block (3) is slidably arranged on the threaded portion (105); a nut (4) is threadedly connected to the threaded portion (105); the nut (4) abuts against the movable angle block (3); the nut (4) is used to adjust the relative position of the movable angle block (3) and the fixed angle block (101); the movable angle block (3) and the fixed angle block (101) are used to clamp a building structure body (002); and the limiting arm (103) is used to connect a scaffold body (001).

2. The device for tying the external scaffolding to the structural surface according to claim 1 is characterized in that: The mortise and tenon buckle (2) comprises a sub-buckle (201), a female buckle (202) and a limiting bolt (204) threadedly connected to the female buckle (202), the sub-buckle (201) is fixedly connected to the smooth portion (107), and the female buckle (202) is fixedly connected to the limiting arm (103), wherein the sub-buckle (201) and the female buckle (202) are connected by mortise and tenon, and a limiting plate (206) is provided on each side of the sub-buckle (201) and the female buckle (202).

3. The device for tying the external scaffolding to the structural surface according to claim 2 is characterized in that: A bottom plate (203) is provided on one side of the female buckle (202), the limiting bolt (204) is threadedly connected to the bottom plate (203), and the sub-buckle (201) is provided with a rectangular groove (205), and the bottom plate (203) is located in the rectangular groove (205).

4. The device for tying the external scaffolding to the structural surface according to claim 2 is characterized in that: At least one set of tripod buckles (104) is slidably arranged on the limiting arm (103), and the tripod buckles (104) are used to connect the scaffold body (001).

5. The device for tying the external scaffolding to the structural surface according to claim 3 is characterized in that: The movable corner block (3) is provided with a reinforcing rib (305), and a semi-ring sleeve (302) is hingedly connected to the upper and lower sides of the reinforcing rib (305), and the ends of the two semi-ring sleeves (302) away from the hinge point are abutted and fixed to each other through a limiting device, wherein a travel groove (106) is opened in the threaded portion (105), the reinforcing rib (305) is inserted into the travel groove (106), and the two semi-ring sleeves (302) are sleeved on the threaded portion (105).

6. The device for tying the external scaffolding to the structural surface according to claim 5, characterized in that: The limiting device comprises a limiting tooth (303) and a buckle (304); the limiting tooth (303) and the buckle (304) are respectively arranged on the corresponding half ring sleeve (302), and the buckle (304) is clamped on the limiting tooth (303).

7. The device for tying the external scaffolding to the structural surface according to claim 5, characterized in that: The upper semi-annular sleeve (302) is provided with a ratchet (301), and a ratchet (401) is provided on a side of the nut (4) close to the semi-annular sleeve (302), and the ratchet (301) is clamped on the ratchet (401).

8. The device for tying the external scaffolding to the structural surface according to claim 1 is characterized in that: The fixed corner block (101) and the movable corner block (3) are both provided with rubber pads (102) on one side facing the building structure body (002).

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