Pin-key type scaffold support structure and construction method

Abstract

The application discloses a pin-key type scaffold supporting structure and a construction method, and belongs to the technical field of scaffolds. The pin-key type scaffold supporting structure has the advantages that when the horizontal rod is fixed on the outer side of the connecting ring through the pin body, the rotating threaded sleeve can abut against and fix the horizontal rod, and can also cover and limit the pin body, so that the stability of the horizontal rod connection is improved, and the stability of the pin body in the inserting process is ensured, and therefore the stability of the whole scaffold in the supporting process is improved.

Description

Technical Field

[0001] This invention relates to the field of scaffolding technology, specifically to a pin-key type scaffolding support structure. Background Technology

[0002] Key-type steel pipe scaffolding and support frames are new types of scaffolding and support frames connected by wedge-shaped pins. They include disc pin (buckle) type steel pipe scaffolding, keyway type steel pipe support, plug-in type (sleeve buckle type, ring buckle type) steel pipe scaffolding, etc. Currently, they are mostly used as formwork support frames.

[0003] For example, invention patent CN110242031A discloses a key-type scaffolding, including a ring body, a pin, uprights, and horizontal bars. The ring body has a vertical connecting part in the middle for engaging with the uprights. The ring body has four circumferentially distributed horizontal connecting holes. This key-type scaffolding allows for easy scaffolding assembly, and the ring body is lightweight and high-strength, ensuring the overall strength of the scaffolding. Finally, during disassembly, the scaffolding can be dismantled simply by removing the pin, significantly accelerating the assembly and disassembly speed and shortening the construction period.

[0004] However, when the pin in the above application is used to fix the horizontal bar, there is a certain gap between the pin, the horizontal bar, and the ring. When the entire scaffolding shakes during support, the connection of the entire scaffolding is prone to follow, thereby reducing the stability of the scaffolding. Therefore, a pin-type scaffolding support structure is proposed to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a key-type scaffolding support structure, which has advantages such as improved support stability and solves the problem of poor support stability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a key-type scaffolding support structure, including a support rod, an extension rod being threadedly connected to the upper end of the support rod, and connecting parts being provided on the support rod and the extension rod;

[0007] The connector includes a connecting ring, which is fixedly connected to the outside of the support rod. A threaded ring located outside the connecting ring is fixedly connected to the outside of the support rod. A pin is inserted into one end of the crossbar near the connecting ring. The end of the crossbar is fixed to the connecting ring by the pin. A threaded sleeve located outside the pin is threadedly connected to the outside of the threaded ring. A handle is fixedly connected to the outside of the threaded sleeve.

[0008] The connector is provided with a crossbar, the crossbar is provided with a reinforcing rod, and the crossbar is provided with a fixing member for connecting and fixing the reinforcing rod.

[0009] Furthermore, the lower end of the extension rod is convex, the upper end of the support rod is concave, the convex end of the extension rod is provided with a plug, and the upper end of the support rod is provided with a first slot located outside the convex end of the extension rod, the first slot and the plug cooperating with each other.

[0010] Furthermore, there are two connecting rings, which are symmetrically distributed on the support rod, and four threaded sleeves, which are symmetrically distributed in pairs on the outside of the connecting rings.

[0011] Furthermore, a limiting ring is fixedly connected to the outer side of the extension rod, with one end extending into the inside of the top threaded sleeve, and the threads on the inner side of the threaded sleeve and the threads on the outer side of the threaded ring engage with each other.

[0012] Furthermore, the threaded sleeve has a fixing groove located outside the connecting bolt on the side near the connecting ring, and there are several grips, which are distributed in a ring at equal intervals on the outside of the threaded sleeve.

[0013] Furthermore, the support rod includes two movable rods. The upper end of the bottom movable rod is fixedly connected to a threaded post that extends into the interior of the top movable rod. A sleeve is slidably connected to the outside of the movable rod, and a fixing bolt with one end passing through the sleeve and the movable rod is rotatably connected to the outside of the sleeve.

[0014] Furthermore, the lower end of the top movable rod is provided with a second threaded groove located outside the threaded post. The second threaded groove and the thread outside the threaded post are mutually engaged. The outer side of the sleeve is provided with a through hole located outside the fixing bolt. The number of through holes is several, and the several through holes are evenly distributed on the sleeve.

[0015] Furthermore, the fastener includes a threaded sleeve rod with one end fixedly connected to the outside of the crossbar, a fixing ring on the outside of the reinforcing rod is threadedly connected to the outside of the threaded sleeve rod, and a rotating rod is fixedly connected to the outside of the fixing ring.

[0016] Furthermore, there are two threaded sleeves, which are symmetrically distributed on the crossbar. There are four fixing rings, which are symmetrically distributed in pairs on the outside of the threaded sleeves. The end of the reinforcing rod is located between each pair of fixing rings. The inner wall of the fixing ring is provided with a third threaded groove located on the outside of the threaded sleeve, and the third threaded groove cooperates with the thread on the outside of the threaded sleeve.

[0017] Furthermore, the threaded rod has a connecting groove located on the outer side of the end of the reinforcing rod, and the end of the reinforcing rod located on the inner side of the connecting groove is circular. The threaded rod has a rotating groove with one end connected to the connecting groove, and the rotating groove is tapered.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] 1. In this pin-type scaffolding support structure, when the horizontal bar is fixed to the outside of the connecting ring by the pin, the rotating threaded sleeve can not only resist and fix the horizontal bar, but also cover and limit the pin. This improves the stability of the horizontal bar connection and ensures the stability of the pin during the insertion process, thereby improving the stability of the entire scaffolding during the support process.

[0020] 2. This pin-key type scaffolding support structure, while the top threaded sleeve is rotated and fixed on the outside of the threaded ring, can also support and fix the extension rod extending into the inside of the support rod. Furthermore, since the support rod can be extended and adjusted through the movable rod and the fixing bolt, it is convenient to adjust the support height of the entire scaffolding, thereby improving the adaptability of the entire scaffolding.

[0021] 3. The key-type scaffolding support structure has a reinforcing rod located on the horizontal bar. This rod can reinforce the horizontal bar and support rod. At the same time, by tightening or loosening the fixing ring, the reinforcing rod can be easily fixed or disassembled, thereby improving the convenience of the entire scaffolding during assembly and disassembly. Attached Figure Description

[0022] Figure 1 This is a front view of the overall structure of the present invention;

[0023] Figure 2 This is a front sectional view of the overall structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a front sectional view of the support rod of the present invention;

[0026] Figure 5 This is a side view of the fixed ring structure of the present invention.

[0027] In the diagram: 1 Support rod, 11 Movable rod, 12 Threaded post, 13 Fixing bolt, 14 Through hole, 15 Sleeve, 2 Support plate, 3 Connector, 31 Connecting ring, 32 Threaded ring, 33 Fixing groove, 34 Limiting ring, 35 Threaded sleeve, 36 Grip rod, 37 Pin, 38 First slot, 4 Extension rod, 5 Crossbar, 6 Fixing component, 61 Threaded sleeve rod, 62 Fixing ring, 63 Rotating rod, 64 Connecting groove, 65 Rotating groove, 7 Reinforcing rod. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-2 Alternatively, in this embodiment, a key-type scaffolding support structure includes a support rod 1, with an extension rod 4 threadedly connected to the upper end of the support rod 1, and a connector 3 provided on the support rod 1 and the extension rod 4.

[0030] A crossbar 5 is provided on the connector 3, a reinforcing rod 7 is provided on the crossbar 5, and a fixing member 6 for connecting and fixing the reinforcing rod 7 is provided on the crossbar 5. The fixing member 6 includes a threaded sleeve rod 61 with one end fixedly connected to the outside of the crossbar 5. A fixing ring 62 on the outside of the reinforcing rod 7 is threadedly connected to the outside of the threaded sleeve rod 61. A rotating rod 63 is fixedly connected to the outside of the fixing ring 62.

[0031] In this embodiment, the reinforcing rod 7 located on the crossbar 5 can reinforce the crossbar 1 and the support rod 1. At the same time, by tightening or loosening the fixing ring 62, the reinforcing rod 7 can be easily fixed or disassembled, thereby improving the convenience of the entire scaffolding during assembly and disassembly.

[0032] There are two threaded sleeve rods 61, which are symmetrically distributed on the crossbar 5. There are four fixing rings 62, which are symmetrically distributed in pairs on the outside of the threaded sleeve rods 61. The end of the reinforcing rod 7 is located between each group of fixing rings 62. The inner sidewall of the fixing ring 62 is provided with a third threaded groove located on the outside of the threaded sleeve rod 61. The third threaded groove and the thread on the outside of the threaded sleeve rod 61 cooperate with each other, so that each group of fixing rings 62 can be adjusted by lateral reciprocating rotation on the threaded sleeve rod 61.

[0033] In addition, the threaded rod 61 has a connecting groove 64 located on the outer side of the end of the reinforcing rod 7. The end of the reinforcing rod 7 located inside the connecting groove 64 is circular. The threaded rod 61 has a rotating groove 65 with one end connected to the connecting groove 64. The rotating groove 65 is conical. The connecting groove 64 is semi-circular. There are several connecting grooves 64 and several rotating grooves 65. The several connecting grooves 64 and rotating grooves 65 are all distributed in a ring at equal intervals on the threaded rod 61, so that the end of the reinforcing rod 7 is located in the connecting groove 64 and rotated to an inclined position through the rotating groove 65, and can be squeezed and fixed by the tightened fixing ring 62.

[0034] It should be noted that the fixing ring 62 and the threaded sleeve 61 can be set at equal intervals according to the length of the crossbar 5 to support multiple reinforcing rods 7 and form a triangular shape to reinforce crossbars 5 of different lengths. Since several connecting grooves 64 and rotating grooves 65 are distributed in a ring at equal intervals on the threaded rod 61, the reinforcing rods 7 can also be fixed at an angle to the front and back to provide front and rear support and reinforcement for multiple sets of support rods 1 and crossbars 5.

[0035] Please see Figure 2-3 In this embodiment, the connector 3 includes a connecting ring 31, which is fixedly connected to the outside of the support rod 1. A threaded ring 32 located outside the connecting ring 31 is fixedly connected to the outside of the support rod 1. A pin 37 is inserted into one end of the crossbar 5 near the connecting ring 31. The end of the crossbar 5 is fixed to the connecting ring 31 by the pin 37. A threaded sleeve 35 located outside the pin 37 is threadedly connected to the outside of the threaded ring 32. A handle 36 is fixedly connected to the outside of the threaded sleeve 35.

[0036] In this embodiment, when the crossbar 5 is fixed to the outside of the connecting ring 31 by the pin 37, the rotating threaded sleeve 35 can not only resist and fix the crossbar 5, but also cover and limit the pin 37. This improves the connection stability of the crossbar 5 and the stability of the pin 37 during the insertion process, thereby improving the stability of the entire scaffold during the support process.

[0037] The lower end of the extension rod 4 is convex, and the upper end of the support rod 1 is concave. The convex end of the extension rod 4 is provided with a plug, and the upper end of the support rod 1 is provided with a first slot 38 located outside the convex end of the extension rod 4. The first slot 38 cooperates with the plug so that the lower end of the extension rod 4 can be screwed into the upper end of the support rod 1 to assemble the support rod 1 and the extension rod 4.

[0038] In addition, there are two connecting rings 31, which are symmetrically distributed on the support rod 1. There are four threaded sleeves 35, which are symmetrically distributed in pairs on the outside of the connecting rings 31. The number of connecting rings 31 can be increased according to the height of the support rod 1 to support more crossbars 5.

[0039] Secondly, a limiting ring 34 is fixedly connected to the outer side of the extension rod 4, with one end extending into the inside of the top threaded sleeve 35. The threads on the inner side of the threaded sleeve 35 and the threads on the outer side of the threaded ring 32 cooperate with each other, so that the rotating threaded sleeve 35 can be adjusted by reciprocating on the threaded ring 32.

[0040] Then, a fixing groove 33 is provided on the side of the threaded sleeve 35 near the connecting ring 31, located outside the pin body 37. The connecting ring 31 has several insertion holes located outside the pin body 37. These insertion holes are arranged in a ring on the connecting ring 31, which can facilitate the insertion and fixing of crossbars 5 in different positions. There are also several grips 36, which are arranged in a ring and equidistantly on the outside of the threaded sleeve 35, making it convenient for the operator to rotate the threaded sleeve 35 by gripping the grips 36.

[0041] Please see Figure 2-4 In this embodiment, the support rod 1 includes two movable rods 11. The upper end of the bottom movable rod 11 is fixedly connected to a threaded post 12 that extends into the interior of the top movable rod 11. A sleeve 15 is slidably connected to the outside of the movable rod 11. A fixing bolt 13 is rotatably connected to the outside of the sleeve 15, with one end passing through the sleeve 15 and the movable rod 11 respectively. The lower end of the top movable rod 11 is provided with a second threaded groove located outside the threaded post 12. The second threaded groove and the thread on the outside of the threaded post 12 are mutually engaged. A through hole 14 is provided on the outside of the sleeve 15 located outside the fixing bolt 13. There are several through holes 14, which are equidistantly distributed on the sleeve 15.

[0042] In this embodiment, when the support rod 1 is fixed to the ground by the support plate 2, the height of the support rod 1 can be adjusted by turning the top movable rod 11 to adjust the fixing bolt 13 to pass through and fix it on the through holes 14 in different ranges, so as to adapt to uneven ground and adjust the support height of the scaffold.

[0043] The limiting rings 34 of the connectors 3 at both ends of the bottom crossbar 5 are fitted onto the outside of the support rod 1, and the rest of the structure is the same as the connector 3 on the extension rod 4.

[0044] The working principle of the above embodiments is as follows:

[0045] When the crossbar 5 is fixed to the outside of the connecting ring 31 by the pin 37, the rotating threaded sleeve 35 can not only resist and fix the crossbar 5, but also cover and limit the pin 37, which improves the connection stability of the crossbar 5 and ensures the stability of the pin 37 during the insertion process, thereby improving the stability of the entire scaffold during the support process. The reinforcing rod 7 located on the crossbar 5 can not only reinforce the crossbar 1 and the support rod 1, but also make it easy to fix or disassemble the reinforcing rod 7 by tightening or loosening the fixing ring 62, thereby improving the convenience of the entire scaffold during the assembly and disassembly process.

[0046] Since the top threaded sleeve 35 is rotated and fixed on the outside of the threaded ring 32, it can also support and fix the extension rod 4 extending into the support rod 1, thereby improving the stability of the connection between the extension rod 4 and the support rod 1. Furthermore, since the support rod 1 can be extended and adjusted through the movable rod 11 and the fixing bolt 13, it is convenient to adjust the support height of the entire scaffold and improve the adaptability of the entire scaffold.

[0047] A construction method for a key-type scaffolding support structure includes the following steps:

[0048] Step 1: Install the support rod

[0049] The support rod is fixedly installed on the ground by the support plate, and the overall height of the support rod can be adjusted by adjusting the top movable rod through the threaded column and the fixing bolt through the corresponding hole. It is suitable for uneven ground and makes the top height of the top movable rod consistent.

[0050] Step 2: Installation of the bottom crossbar

[0051] The two ends of the bottom crossbar are fixed to the connecting ring by pins. The bottom crossbar is fixed by rotating the threaded sleeves on the upper and lower sides of the two ends and the pins are covered and restricted.

[0052] Step 3: Secure the bottom of the reinforcing rod

[0053] Install the bottom of the reinforcing rod into the corresponding connecting groove on the threaded rod of the bottom crossbar, and adjust the fixing rings at both ends to fix the two ends of the reinforcing rod.

[0054] Step 4: Install the top-level horizontal bar

[0055] The two ends of the top crossbar are fixed to the connecting ring by pins. The top crossbar is fixed by rotating the threaded sleeves on the upper and lower sides of the bottom crossbar and covering the pins for restriction. At the same time, the extension rod is fixed.

[0056] Step 5: Secure the top of the reinforcing rod

[0057] Install the bottom of the reinforcing rod into the corresponding connecting groove on the threaded rod of the top crossbar, and adjust the fixing rings at both ends to fix the top of the reinforcing rod. This completes the front and rear tilting and fixing of the reinforcing rod to provide front and rear support and reinforcement for multiple sets of support rods and crossbars.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A key-type scaffolding support structure, characterized in that: It includes a support rod, the upper end of which is threadedly connected to an extension rod, and the support rod and the extension rod are provided with connecting parts; The connector is provided with a crossbar and includes a connecting ring. The connecting ring is fixedly connected to the outside of the support rod. A threaded ring located outside the connecting ring is fixedly connected to the outside of the support rod. A pin is inserted into one end of the crossbar near the connecting ring. The end of the crossbar is fixed to the connecting ring by the pin. A threaded sleeve located outside the pin is threadedly connected to the outside of the threaded ring. A handle is fixedly connected to the outside of the threaded sleeve. The crossbar is provided with a reinforcing bar, and the crossbar is provided with a fastener for connecting and fixing the reinforcing bar; The lower end of the extension rod is convex, the upper end of the support rod is concave, the convex end of the extension rod is provided with a plug, and the upper end of the support rod is provided with a first slot located outside the convex end of the extension rod. The first slot and the plug cooperate with each other. The number of connecting rings is two, and the two connecting rings are symmetrically distributed on the support rod. The number of threaded sleeves is four, and the four threaded sleeves are symmetrically distributed in pairs on the outside of the connecting rings. The extension rod is fixedly connected to a limiting ring with one end extending into the inside of the top threaded sleeve, and the threads on the inside of the threaded sleeve and the threads on the outside of the threaded ring cooperate with each other. The threaded sleeve has a fixing groove on the side near the connecting ring, located outside the connecting bolt. There are several grips, which are distributed in a ring at equal intervals on the outside of the threaded sleeve. The support rod includes two movable rods. The upper end of the bottom movable rod is fixedly connected to a threaded post that extends into the interior of the top movable rod. A sleeve is slidably connected to the outside of the movable rod. A fixing bolt with one end passing through the sleeve and the movable rod is rotatably connected to the outside of the sleeve. The lower end of the top movable rod is provided with a second threaded groove located outside the threaded column. The second threaded groove and the thread outside the threaded column are mutually engaged. The outer side of the sleeve is provided with a through hole located outside the fixing bolt. The number of through holes is several, and the several through holes are evenly distributed on the sleeve. The fastener includes a threaded sleeve rod with one end fixedly connected to the outside of the crossbar, a fixing ring on the outside of the reinforcing rod is threadedly connected to the outside of the threaded sleeve rod, and a rotating rod is fixedly connected to the outside of the fixing ring. The number of threaded sleeves is two, and the two threaded sleeves are symmetrically distributed on the crossbar. The number of fixing rings is four, and the four fixing rings are symmetrically distributed in pairs on the outside of the threaded sleeves. The end of the reinforcing rod is located between each pair of fixing rings. The inner sidewall of the fixing ring is provided with a third threaded groove located on the outside of the threaded sleeve. The third threaded groove and the thread on the outside of the threaded sleeve cooperate with each other. The threaded sleeve has a connecting groove located on the outer side of the end of the reinforcing rod. The end of the reinforcing rod located inside the connecting groove is circular. The threaded sleeve has a rotating groove with one end connected to the connecting groove. The rotating groove is tapered.

2. The construction method of a key-type scaffolding support structure according to claim 1, characterized in that, Includes the following steps: Step 1: Install the support rod The support rod is fixedly installed on the ground by the support plate, and the overall height of the support rod can be adjusted by adjusting the top movable rod through the threaded column and the fixing bolt through the corresponding hole. It is suitable for uneven ground and makes the top height of the top movable rod consistent. Step 2: Installation of the bottom crossbar The two ends of the bottom crossbar are fixed to the connecting ring by pins. The bottom crossbar is fixed by rotating the threaded sleeves on the upper and lower sides of the two ends and the pins are covered and restricted. Step 3: Secure the bottom of the reinforcing rod Install the bottom of the reinforcing rod into the corresponding connecting groove on the threaded sleeve on the bottom crossbar, and adjust the fixing rings at both ends to fix the two ends of the reinforcing rod. Step 4: Installation of the top-level horizontal bar The two ends of the top crossbar are fixed to the connecting ring by pins. The top crossbar is fixed by rotating the threaded sleeves on the upper and lower sides of the bottom crossbar and covering the pins for restriction. At the same time, the extension rod is fixed. Step 5: Secure the top of the reinforcing rod Install the bottom of the reinforcing rod into the corresponding connecting groove on the threaded sleeve of the top crossbar, and adjust the fixing rings at both ends to fix the top of the reinforcing rod. This completes the front and rear tilting and fixing of the reinforcing rod, providing front and rear support and reinforcement to multiple sets of support rods and crossbars.

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