Connection structure of crossbar and support bar for scaffold

Abstract

This invention discloses a connection structure for horizontal bars and support bars of scaffolding, comprising: multiple support bars; two arc-shaped locking plates, one end of which is rotatably installed on opposite sides of the upper end of the support bar; multiple horizontal bars, which pass through through holes and are inserted into socket holes, with a second locking hole at the upper part of the horizontal bar and a third locking hole at the lower part; and an interlocking structure, including a lever, a push rod, a push rod, and two arc-shaped locking rods, with a strip-shaped through hole at the upper end of the support bar along the axial direction of the support bar, and the middle part of the lever slidingly on the... In the strip-shaped through-hole, the through-hole connects to the vertical socket hole through a first channel. A cavity is formed inside the lower end of the support rod, which connects to a notch at the lower end of the support rod through a second channel. An arc-shaped locking rod slides in the second channel, with one end of the arc extending into the cavity. The connector has a third channel connecting the cavity and the first channel. A push rod slides in the third channel and is supported by one end of the two arc-shaped locking rods. An elastic element is installed in the strip-shaped through-hole, and anti-reverse rods are connected to both ends of the lever. This invention solves the problem of cumbersome operation caused by the existing method of connecting scaffold support rods and crossbars with fasteners and screws.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and specifically to a connection structure for horizontal bars and support bars of scaffolding. Background Technology

[0002] Scaffolding is a working platform erected to ensure the smooth progress of various construction processes. Current scaffolding connections primarily rely on various fasteners and screws. When connecting support rods and horizontal bars, multiple screws are used to secure them, ensuring stability. This requires repeated tightening of screws during construction, which is time-consuming, significantly reducing work efficiency. Furthermore, screws and fasteners are prone to loss, resulting in unstable fixation.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, a connection structure for horizontal and support bars of scaffolding is provided to solve the problem of cumbersome operation caused by the use of fasteners and screws to connect the support bars and horizontal bars of existing scaffolding.

[0005] To achieve the above objectives, a connection structure for horizontal members and support members of scaffolding is provided, comprising:

[0006] A multi-segment support rod, wherein the lower end of the support rod is formed with a plug joint, the upper end of the support rod is formed with a vertical insertion hole, and notches are formed on opposite sides of both ends of the support rod;

[0007] Two arc-shaped locking plates are provided, with one end of each arc-shaped locking plate being rotatably mounted on opposite sides of the upper end of the support rod. A first locking hole is formed on the side of the lower end of the support rod. After the connector of the upper support rod is inserted into the vertical socket of the lower support rod, the notches on opposite sides of the ends of the two support rods are closed to form a horizontal socket. The upper end of the arc-shaped locking plate is inserted into the first locking hole, and a through hole aligned with the horizontal socket is provided in the middle of the arc-shaped locking plate.

[0008] Multiple crossbars, the crossbars passing through the through holes and inserted into the receiving crossbars, the upper part of the crossbars having a second locking hole, and the lower part of the crossbars having a third locking hole;

[0009] The interlocking structure includes a lever, a push rod, a push rod, and two arc-shaped locking rods. The upper end of the support rod has a strip-shaped through hole along its axial direction. The middle part of the lever slides within the strip-shaped through hole. The strip-shaped through hole connects to the socket vertical hole through a first channel. The lower end of the support rod has an accommodating cavity. The accommodating cavity connects to a notch at the lower end of the support rod through a second channel. The arc-shaped locking rod slides within the second channel, with one end of the arc-shaped locking rod extending into the accommodating cavity. The connector has... The third channel connects the accommodating cavity and the first channel. The push rod is slidably disposed in the third channel and supported at one end of the two arc-shaped locking rods. An elastic element for lifting the lever is installed in the strip-shaped through hole. Both ends of the lever are connected to anti-reverse rods. After the elastic element lifts the lever, the anti-reverse rod is inserted into the third locking hole. The push rod extends into the third channel and lifts the push rod. The push rod pushes the arc-shaped locking rod so that the other end of the arc-shaped locking rod extends into the notch and is inserted into the second locking hole.

[0010] Furthermore, a plug is formed at the other end of the arc-shaped lock plate, and the plug is inserted into the first lock hole.

[0011] Furthermore, the elastic element is a spring.

[0012] Furthermore, the first channel and the third channel are coaxially arranged.

[0013] Furthermore, the second channel is an arc-shaped channel, and the curvature of the arc-shaped channel is adapted to the curvature of the arc-shaped locking rod.

[0014] Furthermore, one end of the arc-shaped locking rod is rotatably mounted on the inner wall of the accommodating cavity via a hinge rod, and a return spring is connected between the hinge rod and the inner wall of the accommodating cavity.

[0015] Furthermore, the inner wall of the accommodating cavity is connected to an arc-shaped guide rod, the guide rod and the arc-shaped locking rod are concentrically arranged, a guide hole is opened in the middle of the hinge rod, the guide rod slides in the guide hole, and the reset spring is movably sleeved on the outside of the guide rod and pushes against the hinge rod.

[0016] The beneficial effects of this invention are that the connection structure between the horizontal bar and the support bar of the scaffolding is achieved by locking the upper and lower support bars together with an arc-shaped locking bar. After the horizontal bar passes through the hole of the arc-shaped locking bar, the arc-shaped locking bar is prevented from retracting. At the same time, the interlocking mechanism locks the horizontal bar to the upper and lower support bars. During the connection process between the support bar and the horizontal bar, there is no need to use traditional fasteners and screws, which improves the erection efficiency of the scaffolding, saves a lot of installation time, and ensures reliable connection of the scaffolding. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the connection structure between the horizontal bar and the support bar of the scaffolding according to an embodiment of the present invention.

[0019] Figure 2 This is an exploded structural diagram of the connection structure between the horizontal bar and the support bar of the scaffolding according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the support rod according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the upper end of the support rod according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the lower end of the support rod according to an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the crossbar structure according to an embodiment of the present invention. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Reference Figures 1 to 6 As shown, the present invention provides a connection structure for a crossbar and a support bar for scaffolding, comprising: a support bar 1, an arc-shaped locking plate 2, a crossbar 3, and an interlocking structure 4.

[0027] In this embodiment, there are multiple support rods. There are two arc-shaped locking plates. There are at least two crossbars.

[0028] Specifically, the multiple support rods 1 are coaxially arranged. (See reference...) Figure 2As shown, a connector 11 is formed at the lower end of the support rod 1. A socket hole a is formed at the upper end of the support rod 1. In this embodiment, the connector has a polygonal cross-section. Correspondingly, the shape and size of the socket hole are adapted to the shape and size of the connector. The connector is detachably inserted into the socket hole.

[0029] Notches b are formed on opposite sides at both ends of support rod 1. (See reference...) Figure 1 and Figure 2 As shown, after the connector 11 of the upper support rod 1 is inserted into the vertical socket a of the lower support rod 1, the notches b on opposite sides of the ends of the two support rods 1 enclose and form a horizontal socket. The size and shape of the horizontal socket are adapted to the shape and size of the end of the crossbar.

[0030] The inner arc surfaces of the two arc-shaped locking plates 2 face the sides of the support rod. One end of each arc-shaped locking plate 2 is rotatably mounted on opposite sides of the upper end of the support rod 1. A first locking hole c is formed on the side of the lower end of the support rod 1. (See reference...) Figure 3 As shown, the first locking hole is located above the notch at the lower end of the support rod.

[0031] After the connector 11 of the upper support rod 1 is inserted into the vertical socket a of the lower support rod 1, the arc-shaped locking plate is flipped upward so that the upper end of the arc-shaped locking plate 2 is inserted into the first locking hole c, thereby aligning the through hole in the middle of the arc-shaped locking plate 2 with the horizontal socket hole.

[0032] Multiple crossbars 3 are coaxially arranged. Crossbars 3 pass through the through hole d and are inserted into the socket holes. (See reference...) Figure 6 As shown, a second locking hole e is provided at the upper part of the crossbar 3. A third locking hole f is provided at the lower part of the crossbar 3.

[0033] The interlocking structure 4 includes a lever 41, a push rod 42, a push rod 43, and two arc-shaped locking rods 44.

[0034] Specifically, a strip-shaped through hole is provided at the upper end of the support rod 1. The strip-shaped through hole is arranged along the axial direction of the support rod 1. The strip-shaped through hole is located below the lower end of the arc-shaped locking plate.

[0035] The middle part of the lever 41 is slidably positioned in the strip-shaped through hole. The outer diameter of the lever is adapted to the width of the strip-shaped through hole. The outer diameter of the lever is smaller than the length of the strip-shaped through hole, allowing the lever to slide up and down within the strip-shaped through hole.

[0036] Furthermore, the strip-shaped through hole connects to the vertical socket hole a via the first channel h. (See also...) Figure 3 and Figure 5As shown, a cavity i is formed inside the lower end of the support rod 1. The cavity i is connected to the notch b at the lower end of the support rod 1 through a second channel. The arc-shaped locking rod 44 is slidably disposed in the second channel. One end of the arc-shaped locking rod 44 extends into the cavity i. The connector 11 has a third channel. The third channel is connected to the cavity i and the first channel h. The push rod 43 is slidably disposed in the third channel and supported on one end of the two arc-shaped locking rods 44.

[0037] In this embodiment, the outer arc surfaces of the two arc-shaped locking rods are arranged opposite each other. A support plate is formed on the upper part of the push rod. The support plate is slidably disposed in the accommodating cavity and supported on one end of the two arc-shaped locking rods.

[0038] See Figure 1 As shown, an elastic element 46 for lifting the lever 41 is installed in the strip-shaped through hole. Anti-reverse levers 45 are connected to both ends of the lever 41.

[0039] After the elastic element 46 lifts the lever 41, the anti-reverse lever 45 is inserted into the third locking hole f. At the same time, the push rod 42 extends into the third channel and lifts the push rod 43 upward. The push rod 43 then pushes the arc-shaped locking rod 44 upward through the support plate so that the other end of the arc-shaped locking rod 44 extends into the notch b and is inserted into the second locking hole e, thereby locking the crossbar at the upper and lower parts respectively.

[0040] See Figure 2 As shown, a rod is formed at the other end of the arc-shaped locking plate 2. The rod is inserted into the first locking hole c. The width of the arc-shaped locking plate is greater than the outer diameter of the rod.

[0041] In this embodiment, the first channel h and the third channel are coaxially arranged. The outer diameters of the push rod and the ejector rod are matched. The outer diameter of the push rod is matched with the inner diameter of the first channel.

[0042] The second channel is an arc-shaped channel. The curvature of the arc-shaped channel matches the curvature of the arc-shaped locking rod 44. The corresponding second locking hole is also arc-shaped. After the crossbar is inserted into the receiving cross hole, the second locking hole and the second channel are connected and concentrically set with the arc-shaped locking rod.

[0043] In this embodiment, refer to Figure 2 and Figure 3 As shown, one end of the arc-shaped locking rod 44 is rotatably mounted to the inner wall of the accommodating cavity i via a hinge rod 47. The hinge rod is flip-connected to the inner wall of the accommodating cavity. When the hinge rod is flipped upwards, the other end of the arc-shaped locking rod extends into the notch and is inserted into the second locking hole. When the hinge rod is flipped downwards, the other end of the arc-shaped locking rod retracts into the second channel and releases the lock on the crossbar. A return spring 49 is connected between the hinge rod 47 and the inner wall of the accommodating cavity i.

[0044] An arc-shaped guide rod 48 is connected to the inner wall of the accommodating cavity i. The guide rod 48 is concentrically arranged with the arc-shaped locking rod 44. A guide hole is provided in the middle of the hinge rod 47. The guide rod 48 slides in the guide hole. A return spring 49 is movably sleeved on the outside of the guide rod 48 and pushes against the hinge rod 47.

[0045] In this embodiment, the guide rod is semi-circular.

[0046] Continue reading Figure 1 and Figure 2 As shown, elastic element 46 is a spring.

[0047] When installing the scaffolding, first insert the connector 11 of the upper support rod 1 into the vertical socket a of the lower support rod 1. Then flip the arc-shaped locking plate upward so that the insert of the arc-shaped locking plate is inserted into the first locking hole, thereby locking the upper support rod and the lower support rod together.

[0048] After the upper support rod is locked to the lower support rod, press down the lever and insert the end of the crossbar through the through hole d and into the receiving cross hole, so that the second locking hole is aligned with the port of the second channel.

[0049] Then, the lever is released, and under the jacking of the elastic element, the lever rises vertically in the strip-shaped through hole. After the lever rises, the anti-reverse lever 45 is inserted into the third locking hole f. At the same time, the push rod 42 extends into the third channel and lifts the push rod 43. The push rod 43 pushes the arc-shaped locking rod 44 so that the other end of the arc-shaped locking rod 44 extends into the notch b and is inserted into the second locking hole e, thereby realizing the locking connection between the support rod and the crossbar.

[0050] When it is necessary to disassemble the crossbar, press down on the lever to retract the push rod into the first channel. After the push rod retracts into the first channel, the lifting force on the push rod disappears, and under the push of the return spring, the other end of the arc-shaped locking rod retracts into the second channel, thus releasing the lock on the crossbar, which allows for quick disassembly of the crossbar from the support rod.

[0051] The present invention provides a connection structure for horizontal and support rods of scaffolding. This structure uses an arc-shaped locking rod to lock the upper and lower support rods together. After the horizontal rod passes through the hole in the arc-shaped locking rod, the locking rod is prevented from retracting. Simultaneously, an interlocking mechanism locks the horizontal rod to the upper and lower support rods. During the connection process between the support rod and the horizontal rod, traditional fasteners and screws are not required, improving scaffolding erection efficiency, saving significant installation time, and ensuring reliable scaffolding connection.

[0052] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A connection structure for horizontal bars and support bars in scaffolding, characterized in that, include: A multi-segment support rod, wherein the lower end of the support rod is formed with a plug joint, the upper end of the support rod is formed with a vertical insertion hole, and notches are formed on opposite sides of both ends of the support rod; Two arc-shaped locking plates are provided, with one end of each arc-shaped locking plate being rotatably mounted on opposite sides of the upper end of the support rod. A first locking hole is formed on the side of the lower end of the support rod. After the connector of the upper support rod is inserted into the vertical socket of the lower support rod, the notches on opposite sides of the ends of the two support rods are closed to form a horizontal socket. The upper end of the arc-shaped locking plate is inserted into the first locking hole, and a through hole aligned with the horizontal socket is provided in the middle of the arc-shaped locking plate. Multiple crossbars, the crossbars passing through the through holes and inserted into the receiving crossbars, the upper part of the crossbars having a second locking hole, and the lower part of the crossbars having a third locking hole; The interlocking structure includes a lever, a push rod, a push rod, and two arc-shaped locking rods. The upper end of the support rod has a strip-shaped through hole along its axial direction. The middle part of the lever slides within the strip-shaped through hole. The strip-shaped through hole connects to the socket vertical hole through a first channel. The lower end of the support rod has an accommodating cavity. The accommodating cavity connects to a notch at the lower end of the support rod through a second channel. The arc-shaped locking rod slides within the second channel, with one end of the arc-shaped locking rod extending into the accommodating cavity. The connector has... The third channel connects the accommodating cavity and the first channel. The push rod is slidably disposed in the third channel and supported at one end of the two arc-shaped locking rods. An elastic element for lifting the lever is installed in the strip-shaped through hole. Both ends of the lever are connected to anti-reverse rods. After the elastic element lifts the lever, the anti-reverse rod is inserted into the third locking hole. The push rod extends into the third channel and lifts the push rod. The push rod pushes the arc-shaped locking rod so that the other end of the arc-shaped locking rod extends into the notch and is inserted into the second locking hole.

2. The connection structure between the horizontal bar and the support bar for scaffolding according to claim 1, characterized in that, The other end of the arc-shaped lock plate has a plug rod, which is inserted into the first lock hole.

3. The connection structure between the horizontal bar and the support bar for scaffolding according to claim 1, characterized in that, The elastic element is a spring.

4. The connection structure between the horizontal bar and the support bar for scaffolding according to claim 1, characterized in that, The first channel and the third channel are coaxially arranged.

5. The connection structure between the horizontal bar and the support bar for scaffolding according to claim 1, characterized in that, The second channel is an arc-shaped channel, and the curvature of the arc-shaped channel is adapted to the curvature of the arc-shaped locking rod.

6. The connection structure between the horizontal bar and the support bar for scaffolding according to claim 5, characterized in that, One end of the arc-shaped locking rod is rotatably mounted on the inner wall of the accommodating cavity via a hinge rod, and a return spring is connected between the hinge rod and the inner wall of the accommodating cavity.

7. The connection structure between the horizontal bar and the support bar for scaffolding according to claim 6, characterized in that, The inner wall of the accommodating cavity is connected to an arc-shaped guide rod, which is concentrically arranged with the arc-shaped locking rod. A guide hole is opened in the middle of the hinge rod, and the guide rod slides in the guide hole. The reset spring is movably sleeved on the outside of the guide rod and pushes against the hinge rod.

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