Novel joist device for socket type scaffold

Abstract

The invention discloses a novel joist device for a socket type scaffold, which comprises at least two vertical rods and a joist arranged on the vertical rods, and positioning mechanisms are arranged on the vertical rods; the positioning mechanism comprises a sleeve piece and a movable piece, the sleeve piece is arranged on the outer side of the vertical rod in a sleeving mode, and the bottom end of the movable piece is embedded into a crack between the inner side wall of the sleeve piece and the peripheral wall of the vertical rod; the joist is erected between the two adjacent vertical rods and placed at the top end of the movable part so that the movable part can move downwards under the action of gravity, and the movable part, the inner side walls of the vertical rods and the outer side wall of the sleeve part can be clamped and positioned. The device is ingenious in conception, easy to operate, convenient, fast and efficient, can be used for supporting and reinforcing operation of all parts in the steel pipe scaffold, gets rid of height limitation of a connecting disc on a vertical rod, and has certain reference and popularization significance for scaffold installation operation in engineering construction.

Description

Technical Field

[0001] The invention relates to the field of engineering construction, in particular to a novel support beam device for a socket-and-spigot scaffold. Background Art

[0002] In construction and municipal engineering, scaffolding is an important supporting structure and working platform, and its safety, stability and construction efficiency have received great attention. In recent years, with the development of technology, socket-type disc-type steel pipe scaffolding has gradually become the mainstream choice due to its high efficiency, safety and strong bearing capacity.

[0003] The socket-and-spigot type disc-type steel pipe scaffolding forms a stable supporting structure through the combination of components such as vertical poles and horizontal poles. The connection method of this structure is realized by a connecting plate welded on the vertical pole, that is, a wedge-shaped pin is inserted and fixed between the through hole at the end of the rod and the through hole on the connecting plate, so as to achieve the effect of rapid assembly and disassembly between the rod and the vertical pole.

[0004] Patent No. ZL202121414989.2 discloses a socket-type disc-type steel pipe scaffolding, which improves the structure of the connecting plate to improve its pressure-bearing capacity; however, since the crossbeam can only be connected to the connecting plate, the connecting plate pre-welded on the vertical pole will limit the installation height of the crossbeam. When the steel pipe scaffolding is constructed and installed, the crossbeam cannot be installed at the required height according to the use requirements, which seriously affects the use effect of the steel pipe scaffolding. It is necessary to improve it. Summary of the invention

[0005] The object of the present invention is to provide a novel support beam device for socket-and-spigot scaffolding with a simple structure and convenient use in view of the above problems.

[0006] In order to achieve the above object, the technical solution of the present invention is: A new type of supporting beam device for a socket-type scaffold comprises a vertical pole and a supporting beam mounted on the vertical pole, wherein there are at least two vertical poles, and a positioning mechanism is arranged on the vertical pole; the positioning mechanism comprises a sleeve member and a movable member, wherein the sleeve member is sleeved on the outer side of the vertical pole, and the bottom end of the movable member is embedded in the gap between the inner side wall of the sleeve member and the outer peripheral wall of the vertical pole; the supporting beam is erected between two adjacent vertical poles and placed on the top of the movable member, so that the movable member is ordered to move downward under the action of gravity and be clamped and positioned between the inner side wall of the vertical pole and the outer side wall of the sleeve member.

[0007] Furthermore, the sleeve member is a tubular structure, and its axial direction is consistent with the axial direction of the vertical pole; the inner wall of the sleeve member is an inclined conical surface structure with a large inner diameter at the top and a small inner diameter at the bottom.

[0008] Furthermore, the sleeve member is a split clamp structure; in the split clamp structure, the sleeve member includes a first opening and closing anchor and a second opening and closing anchor with two openings arranged opposite to each other, and when the first opening and closing anchor and the second opening and closing anchor are relatively closed, an inclined conical surface structure with a large inner diameter at the top and a small inner diameter at the bottom is formed; one end of the first opening and closing anchor and the second opening and closing anchor are connected with a pin shaft, and the other ends of the first opening and closing anchor and the second opening and closing anchor are detachably connected.

[0009] Furthermore, the movable part is a tapered tubular structure with a large outer diameter at the top and a small outer diameter at the bottom, and the conical surface of the outer wall of the movable part is matched with the inclined conical surface structure of the inner wall of the sleeve part.

[0010] Furthermore, the movable part is a split-type combined structure; in the split-type combined structure, the movable part is composed of a plurality of conical arc parts surrounded and combined to form a conical tubular structure with a large outer diameter at the top and a small outer diameter at the bottom.

[0011] Furthermore, the conical arc part includes a vertical slide plate, a pressure plate, and a plug-in plate; the vertical slide plate is a vertically arranged arc plate structure, the outer periphery of the top end of the vertical slide plate is integrally formed with the horizontally arranged pressure plate, the bottom end of the vertical slide plate is integrally formed with the top end of the plug-in plate, and the plug-in plate is arranged in a conical arc sheet shape with the arc length of the top end being greater than the arc length of the bottom end.

[0012] Furthermore, the sleeve member is fixedly connected to a limit frame, the limit frame includes a connecting rod and an arc ring, the arc ring is arranged in the sleeve member and a limit gap is provided between the outer wall of the arc ring and the inner wall of the sleeve member to accommodate the conical arc member to pass through, the arc ring and the movable member are coaxially arranged, the outer diameter of the arc ring is smaller than the inner diameter of the top end of the conical arc member and larger than the inner diameter of the bottom end of the conical arc member; the outer circumference of the arc ring is integrally formed with a connecting rod and is fixedly connected to the inner wall of the sleeve member through the connecting rod.

[0013] Furthermore, in the conical arc part, the inner wall of the vertical slide plate is flush with the inner wall of the top end of the plug-in board, and the thickness of the vertical slide plate is less than the thickness of the plug-in board, so that a limiting groove is formed between the bottom end wall of the pressure plate, the outer wall of the vertical slide plate, and the top end wall of the plug-in board; a guide groove corresponding to the limiting groove is provided on the inner circumferential side wall of the sleeve part, and a positioning part is slidably connected in the guide groove and can move the positioning part along the radial direction of the sleeve part; a threaded through hole penetrating the outer wall of the sleeve part is provided on the outer side of the guide groove, and an extrusion screw is threadedly connected in the threaded through hole, one end of the extrusion screw abuts against the positioning part and pushes the positioning part into the limiting groove to achieve the engagement and positioning between the positioning part and the limiting groove.

[0014] Furthermore, a plurality of limiting protrusions are sequentially arranged on the outer wall of the vertical slide along the height direction of the vertical slide, the limiting protrusions are in the shape of an arc ring and are integrally formed on the outer peripheral side wall of the vertical slide, and the outer wall of the limiting protrusions presents an inclined surface structure with a small outer diameter at the top and a large outer diameter at the bottom; the positioning member is in the shape of an arc ring, and the end of the positioning member close to the limiting groove presents an inclined surface structure with a small inner diameter at the top and a large inner diameter at the bottom, and the positioning member is engaged and positioned on the conical arc member by abutting against the inclined surface structure of the outer wall of any limiting protrusion through the inclined surface structure.

[0015] Furthermore, the support beam includes two support frames symmetrically arranged on both sides of the vertical pole, and the two support frames are erected between two adjacent vertical poles and placed on the top of the positioning mechanism installed on the vertical pole. The bottom ends of the two support frames are in contact with the top of the movable part and under the action of gravity, the movable part is squeezed downward and embedded in the gap between the inner wall of the sleeve part and the outer peripheral wall of the vertical pole. The two support frames are connected by fixing bolts.

[0016] Compared with the prior art, the present invention has the following advantages and positive effects: When the present invention is used, the sleeve is first sleeved on the outside of the vertical pole, and then the bottom end of the movable part is inserted into the gap between the inner wall of the sleeve and the outer peripheral wall of the vertical pole, and the initial pre-tightening between the positioning mechanism and the vertical pole is achieved through the extrusion friction between the movable part and the inner wall of the sleeve and the outer wall of the vertical pole; finally, the two support frames in the joist are placed on both sides of the vertical pole and on the top of the movable part, and under the action of the gravity of the joist and the bearing capacity of other frames placed on the joist, the movable part moves downward again, increasing the extrusion friction between the movable part and the inner wall of the sleeve and the outer wall of the vertical pole, making the connection structure between the positioning mechanism and the vertical pole more stable; the joist transmits the bearing capacity on the joist to the vertical pole through the positioning mechanism, thereby achieving the installation and stable support effect of the vertical pole on the joist; In this structure, the positioning mechanism and the support beam can be installed at any height on the vertical pole according to the use requirements, without the need to pre-weld the connection plate on the vertical pole, and will not be subject to the height limit of the connection plate, thereby improving the installation and use effect of the steel pipe scaffolding; at the same time, the conical surface structure design of the inner wall of the sleeve member and the outer wall of the movable member utilizes the force characteristics of the conical clamp, so that the movable member and the sleeve member and the column have a technical effect of being pressed tighter and tighter, making the structure of the steel pipe scaffolding more reliable and improving the safety performance of the steel pipe scaffolding; The device is ingeniously designed, simple to operate, convenient and efficient, and can be used for the support and reinforcement operations of various components in steel pipe scaffolding. It gets rid of the height limitation of the connecting plate on the vertical pole, and has certain reference and promotion significance for scaffolding installation operations in engineering construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a rendering of the positioning mechanism in Example 1; Figure 3 Assembly of the positioning mechanism in Example 1 Figure 1 ; Figure 4 Assembly of the positioning mechanism in Example 1 Figure 2 ; Figure 5 is an assembly diagram of the positioning mechanism in Example 2; Figure 6 This is a diagram showing the installation effect of the first opening and closing anchor and the tapered arc member in Example 2; Figure 7 It is an assembly diagram of the first opening and closing anchor and the tapered arc member in Example 2; Figure 8 It is a schematic diagram of the structure of a tapered arc part; Fig. 9 This is an installation effect diagram of the positioning mechanism in Example 3; Fig.10 This is a diagram showing the installation effect of the first opening and closing anchor and the tapered arc member in Example 3; Fig.11 It is a cross-sectional view of the installation of the first opening and closing anchor and the tapered arc member in Example 3; Fig.12 for Fig.11 A magnified view of the local structure; Fig.13 is a schematic structural diagram of the first opening and closing anchor in Example 3; Fig.14 The use scenario of the present invention Figure 1 ; Fig.15 The use scenario of the present invention Figure 2 . DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work, any modifications, equivalent substitutions, improvements, etc., should be included in the protection scope of the present invention.

[0020] Embodiment 1, as Figures 1 to 4 As shown, this embodiment discloses a novel joist device for a socket-and-spigot scaffold, comprising a vertical pole 1 and a joist mounted on the vertical pole 1, wherein the vertical pole 1 has at least two vertical poles, and a positioning mechanism 2 is arranged on the vertical pole 1; the positioning mechanism 2 comprises a sleeve member 21 and a movable member 22, wherein the sleeve member 21 is sleeved on the outside of the vertical pole 1, and the bottom end of the movable member 22 is embedded in the gap between the inner side wall of the sleeve member 21 and the outer peripheral wall of the vertical pole 1; The supporting beam includes two support frames 3 symmetrically arranged on both sides of the vertical pole, and the two support frames 3 are connected by fixing bolts 31; the two support frames 3 are both erected between two adjacent vertical poles 1 and placed on the top of the positioning mechanism 2 installed on the vertical pole 1, and the bottom ends of the two support frames 3 are in contact with the top of the movable part 22 and squeeze the movable part 22 downward under the action of gravity to achieve clamping and positioning between the inner wall of the vertical pole 1 and the outer wall of the sleeve part 21.

[0021] like Figure 2 , Figure 3 As shown, the sleeve member 21 is an integral tubular structure, and its axial direction is consistent with the axial direction of the vertical pole; the inner wall of the sleeve member 21 is an inclined conical surface structure with a large inner diameter at the top and a small inner diameter at the bottom; the inner diameter of the bottom end of the sleeve member 21 is adapted to the outer diameter of the vertical pole; the movable member 22 is also an integral structure, and the movable member 22 is a conical tubular structure with a large outer diameter at the top and a small outer diameter at the bottom. The inner diameter of the bottom end of the movable member 22 is smaller than the outer diameter of the vertical pole, and the conical surface of the outer wall of the movable member 22 is adapted to the inclined conical surface structure of the inner wall of the sleeve member 21.

[0022] When installing the positioning mechanism of this structure, it is necessary to sleeve the integral sleeve member and the movable member from one end of the vertical pole to the outside of the vertical pole, and then embed the movable member into the gap between the sleeve member and the vertical pole.

[0023] like Figure 4As shown, in order to prevent the movable part from escaping from the sleeve part 21, a limit frame is designed to limit the movable part; the limit frame is fixedly connected in the sleeve part, and the limit frame includes a connecting rod 24 and an arc ring 23. The arc ring 23 is arranged in the sleeve part 21, and a limiting gap 231 for accommodating the movable part to pass through is arranged between the outer wall of the arc ring 23 and the inner wall of the sleeve part 21. The inner diameter of the arc ring 23 is larger than the outer diameter of the vertical rod. The arc ring 23 is coaxially arranged with the movable part, and the outer circumference of the arc ring 23 is integrally formed with a connecting rod 24 and is fixedly connected to the inner wall of the sleeve part 21 through the connecting rod 24.

[0024] Due to the existence of the connecting rod, the movable part of the integral structure cannot be embedded in the sleeve part. Therefore, a movable part of a split combined structure is designed, which can meet the embedded installation requirements in the limit frame and does not require the vertical pole sleeve operation, making the installation of the positioning mechanism more convenient; In the split type combined structure, the movable part is surrounded and combined by two tapered arc parts 211 to form a tapered tubular structure with a large outer diameter at the top and a small outer diameter at the bottom.

[0025] In the limiting structure, the outer diameter of the arc ring should be smaller than the inner diameter of the top end of the conical arc part and larger than the inner diameter of the bottom end of the conical arc part; so that the conical arc part can be inserted into the limiting gap in an inclined state, and when the conical arc part wants to leave the limiting gap, it will be blocked by the vertical pole and can only leave in a vertical upward posture, and the arc ring will block the inclined part of the conical arc part, so that it cannot leave the limiting gap, and finally realize the limiting effect of the limiting frame on the movable part.

[0026] Embodiment 2, as Figure 1 , Figures 5 to 8 As shown, this embodiment discloses a novel joist device for a socket-type scaffold, comprising a vertical pole 1 and a joist mounted on the vertical pole 1, wherein the vertical pole 1 has at least two vertical poles, and a positioning mechanism 2 is arranged on the vertical pole 1; the positioning mechanism 2 comprises a sleeve member and a movable member, wherein the sleeve member is sleeved on the outside of the vertical pole 1, and the bottom end of the movable member is embedded in the gap between the inner side wall of the sleeve member and the outer peripheral wall of the vertical pole 1; The supporting beam includes two support frames 3 symmetrically arranged on both sides of the vertical pole, and the two support frames 3 are connected by fixing bolts 31; the two support frames 3 are both erected between two adjacent vertical poles 1 and placed on the top of the positioning mechanism 2 installed on the vertical pole 1, and the bottom ends of the two support frames 3 are in contact with the top of the movable part and squeeze the movable part to move downward under the action of gravity and realize clamping and positioning between the inner wall of the vertical pole 1 and the outer wall of the sleeve part.

[0027] like Figure 5As shown, the sleeve member is a split clamp structure; in the split clamp structure, the sleeve member includes a first opening and closing anchor 211 and a second opening and closing anchor 212 with two openings arranged opposite to each other, and the first opening and closing anchor 211 and the second opening and closing anchor 212 are relatively closed to form an inclined conical surface structure with a large inner diameter at the top and a small inner diameter at the bottom; one end of the first opening and closing anchor 211 and the second opening and closing anchor 212 are connected by a pin shaft, the other end of the first opening and closing anchor 211 is fixedly connected to a first connecting ear 213, and the other end of the second opening and closing anchor 212 is fixedly connected to a second connecting ear 214, and the first connecting ear 213 and the second connecting ear 214 are inserted and positioned by a fixing pin 215.

[0028] The movable part is a split-type combined structure; in the split-type combined structure, the movable part is surrounded and combined by four tapered arc parts 221 to form a tapered tubular structure with a large outer diameter at the top and a small outer diameter at the bottom.

[0029] like Figure 8 As shown, the conical arc member 221 includes a vertical slide plate 2212, a pressure plate 2211, and a plug-in plate 2213; the vertical slide plate 2212 is a vertically arranged arc plate structure, the outer periphery of the top end of the vertical slide plate 2212 is integrally formed with the horizontally arranged pressure plate 2211, the bottom end of the vertical slide plate 2212 is integrally formed with the top end of the plug-in plate 2213, the plug-in plate 2213 is in the shape of a conical arc sheet with a top arc length greater than a bottom arc length, and the inner wall of the plug-in plate 2213 is provided with threads or other stripes to increase its friction, so as to increase the friction between the movable part and the vertical pole after being plugged in, so as to make the overall structure of the positioning mechanism more stable.

[0030] When installing the positioning mechanism of this structure, it is only necessary to open the first opening and closing anchor and the second opening and closing anchor and close them on the outside of the vertical pole. After closing, the first connecting ear and the second connecting ear are fixed with a fixing pin, and finally the tapered arc part is inserted into the gap between the first opening and closing anchor, the second opening and closing anchor and the vertical pole; when the support beam is placed on the top of the movable part, the support beam is placed on the pressure plate, and the pressure plate will abut against the top end wall of the sleeve part after being squeezed, so that the tapered arc part can be easily taken out when disassembling the scaffolding.

[0031] like Figure 6 , Figure 7 As shown, a limit frame is also provided in the sleeve member of the structure to limit the tapered arc member to prevent it from slipping out of the sleeve member; the limit frame includes a connecting rod 24 and an arc ring 23, the arc ring 23 is arranged in the first opening and closing anchor 211 and the second opening and closing anchor, and a limit gap 231 for accommodating the tapered arc member 221 to pass through is provided between the outer wall of the arc ring 23 and the inner wall of the first opening and closing anchor 211 and the second opening and closing anchor; the outer circumference of the arc ring 23 is integrally formed with a connecting rod 24 and is fixedly connected to the inner walls of the first opening and closing anchor 211 and the second opening and closing anchor through the connecting rod 24.

[0032] In this structure, since the sleeve member is divided into a first opening and closing anchor and a second opening and closing anchor, a limit frame is respectively provided on the inner wall of the first opening and closing anchor and the second opening and closing anchor, and the limit principle is consistent with the limit principle in Example 1. After the conical arc member is installed, the arc ring is located on the inner side of the vertical sliding plate, which limits the position of the plug-in board with a slope structure to prevent the conical arc member from escaping from the limit gap.

[0033] Embodiment 3, as Figure 1 , Figures 8 to 13 As shown, this embodiment discloses a new type of support beam device for a socket-type scaffold, including a vertical pole 1 and a support beam installed on the vertical pole 1, the support beam is composed of two symmetrically arranged support frames 3 fixedly connected by fixing bolts 31, there are at least two vertical poles 1, and a positioning mechanism 2 is arranged on the vertical pole 1; the positioning mechanism 2 includes a sleeve member and a movable member, the sleeve member 21 is sleeved on the outer side of the vertical pole, and the bottom end of the movable member is embedded in the gap between the inner wall of the sleeve member and the outer peripheral wall of the vertical pole 1; the support beam is erected between two adjacent vertical poles 1 and placed on the top of the movable member, so that the movable member is ordered to move downward under the action of gravity and is clamped and positioned between the inner wall of the vertical pole 1 and the outer wall of the sleeve member.

[0034] like Fig. 9 As shown, the sleeve member is a split clamp structure; in the split clamp structure, the sleeve member includes a first opening and closing anchor 211 and a second opening and closing anchor 212 with two openings arranged opposite to each other, and the first opening and closing anchor 211 and the second opening and closing anchor 212 are relatively closed to form an inclined conical surface structure with a large inner diameter at the top and a small inner diameter at the bottom; one end of the first opening and closing anchor 211 and the second opening and closing anchor 212 are connected by a pin shaft, the other end of the first opening and closing anchor 211 is fixedly connected to a first connecting ear 213, and the other end of the second opening and closing anchor 212 is fixedly connected to a second connecting ear 214, and the first connecting ear 213 and the second connecting ear 214 are inserted and positioned by a fixing pin 215.

[0035] The movable part is a split-type combined structure; in the split-type combined structure, the movable part is surrounded and combined by two tapered arc parts 221 to form a tapered tubular structure with a large outer diameter at the top and a small outer diameter at the bottom.

[0036] like Figure 8As shown, the conical arc member 221 includes a vertical slide plate 2212, a pressure plate 2211, and a plug-in plate 2213; the vertical slide plate 2212 is a vertically arranged arc plate structure, the outer periphery of the top end of the vertical slide plate 2212 is integrally formed with the horizontally arranged pressure plate 2211, the bottom end of the vertical slide plate 2212 is integrally formed with the top end of the plug-in plate 2213, the plug-in plate 2213 is in the shape of a conical arc sheet with a top arc length greater than a bottom arc length, and the inner wall of the plug-in plate 2213 is provided with threads or other stripes to increase its friction, so as to increase the friction between the movable part and the vertical pole after being plugged in, so as to make the overall structure of the positioning mechanism more stable.

[0037] The installation method of the positioning mechanism of this structure is the same as that of Example 2. It is only necessary to open the first opening and closing anchor and the second opening and closing anchor and close them on the outside of the vertical pole. After closing, the first connecting ear and the second connecting ear are fixed with a fixing pin, and finally the tapered arc part is inserted into the gap between the first opening and closing anchor, the second opening and closing anchor and the vertical pole. like Figures 10 to 13 As shown, in the positioning structure of the structure, the structure of the tapered arc part is appropriately improved, and the groove structure on the tapered arc part and the positioning part on the sleeve part are used to cooperate and limit; since the sleeve part is designed as a split structure, the same structural design can be set on the first opening and closing anchor and the second opening and closing anchor respectively; the first opening and closing anchor is taken as an example for a detailed structural description below; In the conical arc part 221, the inner side wall of the vertical slide 2212 is flush with the inner side wall of the top end of the plug board 2213, and the thickness of the vertical slide 2212 is less than the thickness of the plug board 2213, so that the bottom end wall of the pressure plate 2211, the outer side wall of the vertical slide 2212, and the top end wall of the plug board 2213 are surrounded to form a limiting groove 2214; the inner side wall of the first opening and closing anchor 211 is provided with a guide groove 2111 corresponding to the limiting groove 2214, and the guide groove 2 A positioning member 26 is slidably connected inside 111 and can move the positioning member 26 along the radial direction of the first opening and closing anchor 211; a threaded through hole 2112 is provided on the outside of the guide groove 2111 and penetrates the outer wall of the first opening and closing anchor 211, and an extrusion screw 25 is threadedly connected inside the threaded through hole 2112. One end of the extrusion screw 25 abuts against the positioning member 26 and pushes the positioning member 26 into the limiting groove 2214 to achieve the locking and positioning between the positioning member 26 and the limiting groove 2214.

[0038] After the conical arc part is inserted into the gap between the first opening and closing anchor, the second opening and closing anchor and the upright pole and the joist is installed, the limiting groove in the conical arc part corresponds to the position of the positioning part. By turning the extrusion screw, the positioning part can be inserted into the limiting groove. Under the action of the positioning part, the conical arc part cannot be separated from the sleeve part, thereby realizing the position limiting operation of the conical arc part. In the design, a spring can be provided between the positioning part and the inner wall of the guide groove to facilitate the reset operation of the positioning part when disassembling the scaffolding. Of course, the limiting structure can also be applied to an integral sleeve member and an integral movable member, and it also has the technical effect of preventing the movable member from separating from the sleeve member.

[0039] like Fig.11 , Fig.12 As shown, a plurality of limiting protrusions 2215 are sequentially arranged on the outer wall of the vertical slide 2212 along the height direction of the vertical slide 2212. The limiting protrusions 2215 are in the shape of an arc ring and are integrally formed on the outer peripheral side wall of the vertical slide 2212. The outer wall of the limiting protrusion 2215 has an inclined surface structure with a small outer diameter at the top and a large outer diameter at the bottom. The positioning member 26 is in the shape of an arc ring, and one end of the positioning member 26 close to the limiting groove 2214 has an inclined surface structure with a small inner diameter at the top and a large inner diameter at the bottom. The positioning member 26 is engaged with the conical arc member 221 by abutting against the inclined surface structure of the outer wall of any limiting protrusion 2215 through the inclined surface structure.

[0040] The coordinated design of the inclined surface structure on the limiting protrusion and the inclined surface structure on the positioning piece enables, when the positioning piece is inserted into the limiting groove and any limiting protrusion is squeezed, the coordination of the inclined surface structure causes the tapered arc piece to generate a force to move downward, thereby increasing the embedding depth of the tapered arc piece in the gap, and further improving the structural stability between the positioning mechanism and the upright pole; at the same time, when dismantling the scaffolding, after unscrewing the squeezing screw, using a tool to move the tapered arc piece upward to disengage from the sleeve piece, the limiting protrusion will push the positioning piece into the guide groove under the action of the inclined surface structure, causing the positioning piece to disengage from the limiting groove, thereby facilitating the removal of the tapered arc piece from between the sleeve piece and the upright pole, bringing convenience to the dismantling of the scaffolding.

[0041] In addition, the present invention can also be applied to the densification operation of the upright poles of the formwork frame under the stairs and ramps, so as to achieve the supporting effect of densifying the upright poles, such as Fig.14 As shown; and, when the vertical poles of the support formwork plate beams under the edge beams are shared, the buckle nodes of the adjacent vertical poles are staggered, and the device in the present invention can also be used to install vertical poles to improve the support effect, such as Fig.15 shown.

[0042] When the present invention is used, the sleeve is first sleeved on the outside of the vertical pole, and then the bottom end of the movable part is inserted into the gap between the inner wall of the sleeve and the outer peripheral wall of the vertical pole, and the initial pre-tightening between the positioning mechanism and the vertical pole is achieved through the extrusion friction between the movable part and the inner wall of the sleeve and the outer wall of the vertical pole; finally, the two support frames in the joist are placed on both sides of the vertical pole and on the top of the movable part, and under the action of the gravity of the joist and the bearing capacity of other frames placed on the joist, the movable part moves downward again, increasing the extrusion friction between the movable part and the inner wall of the sleeve and the outer wall of the vertical pole, making the connection structure between the positioning mechanism and the vertical pole more stable; the joist transmits the bearing capacity on the joist to the vertical pole through the positioning mechanism, thereby achieving the installation and stable support effect of the vertical pole on the joist; In this structure, the positioning mechanism and the support beam can be installed at any height on the vertical pole according to the use requirements, without the need to pre-weld the connection plate on the vertical pole, and will not be subject to the height limit of the connection plate, thereby improving the installation and use effect of the steel pipe scaffolding; at the same time, the conical surface structure design of the inner wall of the sleeve member and the outer wall of the movable member utilizes the force characteristics of the conical clamp, so that the movable member and the sleeve member and the column have a technical effect of being pressed tighter and tighter, making the structure of the steel pipe scaffolding more reliable and improving the safety performance of the steel pipe scaffolding; The device is ingeniously designed, simple to operate, convenient and efficient, and can be used for the support and reinforcement operations of various components in steel pipe scaffolding. It gets rid of the height limitation of the connecting plate on the vertical pole, and has certain reference and promotion significance for scaffolding installation operations in engineering construction.

Claims

1. A novel joist device for a socket-and-spigot scaffold, comprising a vertical pole and a joist mounted on the vertical pole, characterized in that: There are at least two vertical poles, and a positioning mechanism is arranged on the vertical poles; the positioning mechanism includes a sleeve member and a movable member, the sleeve member is sleeved on the outside of the vertical pole, and the bottom end of the movable member is embedded in the gap between the inner wall of the sleeve member and the outer peripheral wall of the vertical pole; the supporting beam is erected between two adjacent vertical poles and placed on the top of the movable member, so that the movable member is ordered to move downward under the action of gravity and be clamped and positioned between the inner wall of the vertical pole and the outer wall of the sleeve member.

2. The novel support beam device for socket-type scaffolding according to claim 1 is characterized in that: The sleeve member is a tubular structure, and its axial direction is consistent with the axial direction of the vertical rod; the inner wall of the sleeve member is an inclined conical surface structure with a large inner diameter at the top and a small inner diameter at the bottom.

3. The novel joist device for socket-and-spigot scaffolding according to claim 2 is characterized in that: The sleeve member is a split clamp structure; in the split clamp structure, the sleeve member includes a first opening and closing anchor and a second opening and closing anchor with two openings arranged opposite to each other, and when the first opening and closing anchor and the second opening and closing anchor are relatively closed, an inclined conical surface structure with a large inner diameter at the top and a small inner diameter at the bottom is formed; one end of the first opening and closing anchor and the second opening and closing anchor are connected with a pin shaft, and the other ends of the first opening and closing anchor and the second opening and closing anchor are detachably connected.

4. The novel joist device for socket-and-spigot scaffolding according to claim 2, characterized in that: The movable part is a tapered tubular structure with a large outer diameter at the top and a small outer diameter at the bottom. The conical surface of the outer wall of the movable part is matched with the inclined conical surface structure of the inner wall of the sleeve part.

5. The novel joist device for socket-and-spigot scaffolding according to claim 4 is characterized in that: The movable part is a split-type combined structure; in the split-type combined structure, the movable part is composed of a plurality of conical arc parts surrounded and combined to form a conical tubular structure with a large outer diameter at the top and a small outer diameter at the bottom.

6. The novel joist device for socket-and-spigot scaffolding according to claim 5, characterized in that: The conical arc part includes a vertical slide plate, a pressure plate, and a plug-in plate; the vertical slide plate is a vertically arranged arc plate structure, the outer periphery of the top end of the vertical slide plate is integrally formed with the horizontally arranged pressure plate, the bottom end of the vertical slide plate is integrally formed with the top end of the plug-in plate, and the plug-in plate is arranged in a conical arc sheet shape with the arc length of the top end being greater than the arc length of the bottom end.

7. The novel joist device for socket-and-spigot scaffolding according to claim 6 is characterized in that: A limiting frame is fixedly connected inside the sleeve member, and the limiting frame includes a connecting rod and an arc ring. The arc ring is arranged in the sleeve member, and a limiting gap for accommodating the conical arc member to pass through is arranged between the outer wall of the arc ring and the inner wall of the sleeve member. The arc ring and the movable member are coaxially arranged, and the outer diameter of the arc ring is smaller than the inner diameter of the top end of the conical arc member and larger than the inner diameter of the bottom end of the conical arc member; the outer circumference of the arc ring is integrally formed with a connecting rod and is fixedly connected to the inner wall of the sleeve member through the connecting rod.

8. The novel joist device for socket-and-spigot scaffolding according to claim 6, characterized in that: In the conical arc part, the inner wall of the vertical slide plate is flush with the inner wall of the top end of the plug-in board, and the thickness of the vertical slide plate is less than the thickness of the plug-in board, so that a limiting groove is formed between the bottom end wall of the pressure plate, the outer wall of the vertical slide plate, and the top end wall of the plug-in board; a guide groove corresponding to the limiting groove is arranged on the inner peripheral side wall of the sleeve part, and a positioning part is slidably connected in the guide groove and can move the positioning part along the radial direction of the sleeve part; a threaded through hole penetrating the outer wall of the sleeve part is arranged on the outer side of the guide groove, and an extrusion screw is threadedly connected in the threaded through hole, and one end of the extrusion screw abuts against the positioning part and pushes the positioning part into the limiting groove to realize the engagement and positioning between the positioning part and the limiting groove.

9. The novel joist device for socket-and-spigot scaffolding according to claim 8, characterized in that: A plurality of limiting protrusions are sequentially arranged on the outer side wall of the vertical slide along the height direction of the vertical slide. The limiting protrusions are in the shape of an arc ring and are integrally formed on the outer peripheral side wall of the vertical slide. The outer side wall of the limiting protrusions presents an inclined surface structure with a small outer diameter at the top and a large outer diameter at the bottom. The positioning member is in the shape of an arc ring, and the end of the positioning member close to the limiting groove presents an inclined surface structure with a small inner diameter at the top and a large inner diameter at the bottom. The positioning member is engaged and positioned on the conical arc member by abutting against the inclined surface structure of the outer side wall of any limiting protrusion through the inclined surface structure.

10. The novel joist device for socket-and-spigot scaffolding according to claim 1, characterized in that: The supporting beam includes two support frames symmetrically arranged on both sides of the vertical pole. The two support frames are both erected between two adjacent vertical poles and placed on the top of the positioning mechanism installed on the vertical pole. The bottom ends of the two support frames are in contact with the top of the movable part and under the action of gravity, the movable part is squeezed downward and embedded in the gap between the inner wall of the sleeve part and the outer peripheral wall of the vertical pole. The two support frames are connected by fixing bolts.

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