A hanging bracket boom connecting device and a building machine
By using snap-fit components and a snap-fit structure for quick connection and anti-rotation locking of the connecting components, the problems of time-consuming, labor-intensive, and safety hazards in traditional boom connections are solved, achieving efficient and safe boom connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR THIRD BUREAU GRP (SHENZHEN) CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional boom connection methods are time-consuming and labor-intensive in high-altitude construction. Bolt connections are prone to loosening, leading to structural safety hazards. In addition, they are difficult to operate and pose a risk of falling objects from heights.
It adopts a snap-fit and snap-fit structure, and achieves quick snap-fit through the cooperation of the avoidance groove and the snap-fit slot. Combined with the anti-rotation locking of the connecting component, it disperses stress concentration and reduces the use of special tools.
It improves the efficiency and safety of the boom connection, reduces the risk of loosening of bolted connections and the difficulty of operation, and enhances the fatigue life of the connection nodes.
Smart Images
Figure CN224532256U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of construction, and more particularly to a hanger rod connection device and a building construction machine. Background Technology
[0002] In the field of industrialized construction of high-rise buildings, the scaffolding system of a building construction machine serves as the core load-bearing platform. Its suspension rod structure, a vertical load-bearing component that withstands axial tension or compression, is mostly made of high-strength steel and is primarily used to suspend, support, or connect structural parts, transferring the load to the main load-bearing structure. Traditional suspension rods generally employ a segmented bolt connection scheme, with bolt holes pre-machined at the ends of the upper and lower suspension rods. High-strength bolts are then passed through the holes and tightened with torque to achieve splicing. This method has revealed significant limitations in actual construction. First, the installation process relies on manual alignment of the bolt holes one by one, requiring repeated adjustments to the spatial posture of the suspension rods. This is extremely time-consuming, especially in high-altitude, windy conditions, severely impacting the climbing efficiency of the building construction machine. Second, the bolt connection points form rigid nodes, which are prone to stress concentration under dynamic construction loads. Long-term alternating stress can lead to bolt thread stripping, plastic deformation of the hole wall, or the propagation of local micro-cracks, significantly reducing the fatigue life of the connection nodes and creating potential structural safety hazards. In addition, bolt tightening requires special wrenches, which are difficult for construction workers to operate in narrow spaces, and the risk of bolts falling off further increases the hazard of falling objects from heights. Utility Model Content
[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a hanger rod connection device and a building construction machine.
[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: This application provides: A hanger rod connecting device includes: A boom, comprising a first rod body and a second rod body, wherein the first rod body has a first cavity and the second rod body has a second cavity; A snap-fit component is disposed in the first cavity. The end face of the snap-fit component facing the direction of the second rod body is provided with a clearance groove along its axial direction, and a snap-fit groove is provided on the circumferential surface of the snap-fit component. A locking block, which is fixedly disposed on the inner wall of the second cavity and is located in the locking slot; A connecting assembly is provided, through which the first rod and the second rod are connected.
[0005] Furthermore, a circumferential limiting component is provided on the inner wall of the first cavity, and the snap-fit component is connected to the first rod body through the circumferential limiting component. The circumferential limiting component includes a guide block fixedly disposed on the inner wall of the first cavity and a guide groove opened on the circumferential surface of the snap-fit component. The guide block is slidably disposed in the guide groove.
[0006] Furthermore, a first fixing member is provided on the side of the snap-fit member facing away from the second rod body, located in the first cavity. An elastic member is provided between the first fixing member and the snap-fit member. One end of the elastic member is connected to the snap-fit member, and the other end of the elastic member facing away from the snap-fit member is connected to the first fixing member.
[0007] Furthermore, the number of both the clearance slot and the locking block is N, satisfying: N≥1; When N≥2, the card blocks are located on opposite sides of the inner wall of the second cavity, the clearance grooves are located on opposite sides of the circumferential direction of the card connector, and the card blocks are correspondingly arranged in the card grooves.
[0008] Furthermore, a transition zone is formed between the two card blocks in opposite directions, the width of the transition zone is L1, the surface of the clearance groove facing the axis of the card connector is a side surface, and the distance between the two side surfaces in opposite directions is L2, satisfying: L1≥L2.
[0009] Furthermore, the hanging rod connecting device has a first direction, the length of the clearance groove along the first direction is L3, and the length of the locking block along the first direction is L4, satisfying: L3 > L4.
[0010] Furthermore, the latching member includes a driven part and a latching part, the driven part and the latching part are integrally formed, the clearance groove is formed on the end face of the latching part opposite to the driven part, and the latching slot is disposed on the peripheral surface of the latching part.
[0011] Furthermore, the connecting assembly includes a first lug disposed on the peripheral surface of the end of the first rod facing the second rod, the first lug having at least one first connecting hole. The connecting assembly also includes a second lug disposed on the peripheral surface of the end of the second rod facing the first rod, the second lug having at least one second connecting hole. The first connecting hole and the second connecting hole are coaxially arranged and communicate with each other to form a fastening hole. A connector is disposed in the fastening hole, and fasteners are disposed at both ends of the connector.
[0012] Furthermore, a second fixing member is also fixedly disposed within the second cavity, and the snap-fit member abuts against the second fixing member.
[0013] This application also provides a building construction machine, which includes the hanging rod connection device described in any one of the above-mentioned methods.
[0014] This application utilizes a snap-fit component located within the first cavity, along with clearance grooves on its end face and slots on its circumference, in conjunction with a snap-fit block fixed to the inner wall of the second cavity. During connection, the snap-fit block is inserted through the clearance groove and then rotated into the slot to achieve rapid snap-fit, eliminating the need for manual precision alignment of bolt holes and significantly shortening the time required for connecting the boom. The snap-fit structure disperses stress concentration under dynamic construction loads, reducing the risk of thread stripping, hole wall deformation, or micro-crack propagation caused by alternating forces at traditional bolt connection points, thereby improving the fatigue life of the connection joint. Combined with the anti-rotation locking mechanism for the first and second booms, this design ensures structural safety while reducing the need for specialized tools, lowering the difficulty of operation in confined spaces, and mitigating the risk of falling objects from heights due to bolt detachment.
[0015] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This paper shows a schematic diagram of the overall structure of the first and second rods in the combined state of this application. Figure 2 This paper shows a schematic diagram of the internal structure of the first and second rods in the coupled state of this application. Figure 3 This application shows Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This diagram illustrates the steps of rotating the latching part and engaging the latching block in this application. Figure 5 A cross-sectional view of the first rod at the guide groove location of this application is shown.
[0018] Explanation of key component symbols: 110-First rod body; 111-First cavity body; 120-Second rod body; 121-Second cavity body; 200-Snap-fit part; 201-Allowing groove; 2011-Side; 202-Snap-fit groove; 210-Driven part; 220-Snap-fit part; 300-Snap-fit block; 301-Transition area; 400-Connecting assembly; 410-First lug; 420-Second lug; 430-Connector; 440-Fastener; 500-First fixing part; 600-Elastic part; 710-Guide block; 720-Guide groove; 800-Second fixing part. Detailed Implementation
[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0020] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0024] This application provides a hanger rod connection device, which includes a hanger rod, a snap-fit component 200, a snap block 300, and a connection assembly 400. The hanger rod includes a first rod body 110 and a second rod body 120. The first rod body 110 has a first cavity 111, and the second rod body 120 has a second cavity 121. The snap-fit component 200 is disposed in the first cavity 111. The end face of the snap-fit component 200 facing the second rod body 120 has an avoidance groove 201 along its axial direction. The peripheral surface of the snap-fit component 200 has a snap groove 202. The snap block 300 is fixedly disposed in the inner wall of the second cavity 121 and is located in the snap groove 202. The first rod body 110 and the second rod body 120 are connected by the connection assembly 400.
[0025] In this embodiment, the boom mainly bears the pressure. Therefore, this embodiment uses the first boom 110 and the second boom 120 as examples to illustrate the pressure. The force is transmitted to the main body through the connection between the first boom 110 and the second boom 120.
[0026] In some embodiments, the snap-fit 200 can be fixed to the first rod 110 by welding or other means. That is, the snap-fit 200 cannot rotate or move axially relative to the first rod 110. Therefore, the first rod 110 can drive the snap-fit 200 to rotate during rotation.
[0027] Please see Figure 1 and Figure 2 As shown, when a connection is required, the snap-fit part 200 can first be inserted into the second cavity 121, and then the snap-fit block 300 is positioned in the clearance groove 201. As the snap-fit part 200 continues to penetrate deeper into the second cavity 121, the slot 202 is positioned at the position of the snap-fit block 300. The rotatable first rod 110 drives the snap-fit part 200 to rotate through the axial limiting component, so that the snap-fit block 300 enters the slot 202 to achieve snap-fit, thereby achieving snap-fit between the snap-fit block 300 and the snap-fit part 200, and thus achieving the connection between the first rod 110 and the second rod 120.
[0028] Furthermore, in order to prevent the first rod 110 and the second rod 120 from rotating relative to each other due to external force, causing the locking block 300 to disengage from the locking slot 202, the peripheral surfaces of the first rod 110 and the second rod 120 are connected by a connecting assembly 400, thereby preventing the first rod 110 and the second rod 120 from rotating relative to each other in the rotational direction. The specific structure of the connecting assembly 400 is explained in detail below and will not be elaborated here.
[0029] It is understandable that, since the snap-fit 200 extends into the second cavity 121 of the second rod 120, the peripheral surface of the snap-fit 200 is in contact with the inner wall of the second cavity 121, thereby improving the coaxiality of the first rod 110 and the second rod 120 when they are connected, and ensuring the stability of the connection between the first rod 110 and the second rod 120.
[0030] In some embodiments, a circumferential limiting component is provided on the inner wall of the first cavity 111, and the snap-fit member 200 is connected to the first rod 110 through the circumferential limiting component. The circumferential limiting component includes a guide block 710 fixedly disposed on the inner wall of the first cavity 111 and a guide groove 720 opened on the circumferential surface of the snap-fit member 200. The guide block 710 is slidably disposed in the guide groove 720.
[0031] like Figure 2 and Figure 3 as well as Figure 5 As shown, the circumferential limiting component limits the rotation direction of the latching member 200, meaning that the latching member 200 cannot rotate relative to the first rod 110, but it does not restrict the axial movement of the latching member 200. Specifically, the latching member 200 is adapted to the first cavity 111, and the circumferential surface of the latching member 200 is slidably connected to the guide block 710 on the inner wall of the first cavity 111 through the opening of the guide groove 720. At this time, the guide block 710 is located in the guide groove 720, thereby limiting the rotation of the latching member 200, and the latching member 200 can move a certain distance in the axial direction.
[0032] In the initial state, the snap-fit 200 slides up and down under the guidance of the guide block 710. When the snap-fit block 300 engages with the slot 202, the bottom of the guide block 710 abuts against the inner bottom surface of the guide slot 720. At this time, the force from the first rod 110 is transmitted downward to the snap-fit 200 through the guide block 710. Under the premise that the snap-fit block 300 and the slot 202 are engaged, the force from the snap-fit 200 is transmitted to the second rod 120 to realize the force transmission.
[0033] In some embodiments, a first fixing member 500 located in the first cavity 111 is provided on the side of the snap-fit member 200 away from the second rod body 120. An elastic member 600 is provided between the first fixing member 500 and the snap-fit member 200. One end of the elastic member 600 is connected to the snap-fit member 200, and the other end of the elastic member 600 away from the snap-fit member 200 is connected to the first fixing member 500.
[0034] Please continue reading. Figure 2 and Figure 3 As shown, by setting a first fixing member 500 fixedly connected to the first rod body 110 above the snap-fit member 200, and setting an elastic member 600 between the first fixing member 500 and the snap-fit member 200, the elastic member 600 provides a downward force to the snap-fit member 200, thereby increasing the contact force between the inner top wall of the slot 202 and the top surface of the block 300, and thus increasing the friction between the snap-fit member 200 and the block 300, making it less likely for the snap-fit member 200 and the block 300 to rotate relative to each other and separate to release the snap-fit state.
[0035] In some embodiments, the number of clearance grooves 201 and locking blocks 300 is N, satisfying: N≥1; when N≥2, the locking blocks 300 are located on opposite sides of the inner wall of the second cavity 121, the clearance grooves 201 are located on opposite sides of the circumferential direction of the locking member 200, and the locking blocks 300 are correspondingly arranged in the locking grooves 202.
[0036] See Figure 2 , Figure 3 as well as Figure 4 As shown, in order to ensure uniform force distribution between the snap-fit component 200 and the snap-fit block 300, the number of snap-fit blocks 300 should be greater than or equal to two. The snap-fit blocks 300 are evenly distributed on the inner wall of the second cavity 121 to ensure uniform distribution. In order to ensure that the snap-fit component 200 can enter the space formed by the multiple snap-fit blocks 300 and the second cavity 121 and can rotate, the number of clearance slots 201 should be the same as the number of snap-fit blocks 300.
[0037] In this embodiment, there are two clearance grooves 201 and two locking blocks 300. The locking blocks 300 are arranged on the inner wall of the second cavity 121 in opposite directions. The clearance grooves 201 are also opened on the locking member 200 in opposite directions, so that the locking member 200 can at least partially extend into the space formed between the two locking blocks 300, and the locking groove 202 reaches the position of the locking block 300. The first rod 110 drives the locking member 200 to rotate through the cooperation of the guide block 710 and the guide groove 720, so that the locking groove 202 and the locking block 300 are engaged and locked.
[0038] In some embodiments, a transition region 301 is formed between two opposing blocks 300. The width of the transition region 301 is L1. The side of the clearance groove 201 facing the axis of the latch 200 is a side surface 2011. The distance between the two opposing side surfaces 2011 is L2, satisfying: L1≥L2.
[0039] Please continue reading. Figure 4 As shown, the example continues with two clearance slots 201 and two locking blocks 300. In order for the locking member 200 to extend between the two opposing locking blocks 300, the distance between the two adjacent sides 2011 of the two clearance slots 201 in opposite directions should be less than or equal to the distance between the two locking blocks 300 in opposite directions. In practice, in order to make it easier for the locking member 200 to extend between the two locking blocks 300, the distance between the two adjacent sides 2011 in opposite directions is less than the distance between the two locking blocks 300.
[0040] In some embodiments, the hanger rod connecting device has a first direction, the clearance groove 201 has a length of L3 along the first direction, and the locking block 300 has a length of L4 along the first direction, satisfying: L3 > L4.
[0041] In this embodiment, the first direction mentioned above refers to the vertical direction, such as... Figure 3 As shown, in order for the latching member 200 to engage with the latching block 300 through the latching groove 202, the latching groove 202 should be located on the circumferential sidewall of the area where the clearance groove 201 is located. That is, the length of the latching groove 202 should be less than the length of the clearance groove 201, and thus the length of the latching block 300 should also be less than the length of the clearance groove 201. For this reason, L3 > L4 must be satisfied so that the latching block 300 and the latching member 200 can be successfully latched and limited. After the latching block 300 engages with the latching groove 202, it directly limits the position of the second rod 120 and the latching member 200 in the height direction, that is, the latching member 200 cannot move relative to the second rod 120.
[0042] In some embodiments, the snap-fit member 200 includes a driven portion 210 and a snap-fit portion 220, the driven portion 210 and the snap-fit portion 220 are integrally formed, an avoidance groove 201 is formed on the end face of the snap-fit portion 220 opposite to the driven portion 210, and a snap groove 202 is provided on the peripheral surface of the snap-fit portion 220.
[0043] See Figure 2 and Figure 3As shown, the snap-fit part 200 is integrally formed by the driven part 210 and the snap-fit part 220. Specifically, the guide groove 720 is formed on the peripheral surface of the driven part 210, the clearance groove 201 is formed with the cross section of the snap-fit part 220 and extends toward the driven part 210, and correspondingly, the snap groove 202 is formed on the peripheral surface of the snap-fit part 220. The snap block 300 cooperates with the snap groove 202 to snap with the snap-fit part 220, and the end of the elastic member 600 away from the first fixing member 500 is connected to the top surface of the driven part 210.
[0044] In some embodiments, the connecting assembly 400 includes a first lug 410 disposed on the end peripheral surface of the first rod 110 facing the second rod 120, the first lug 410 having at least one first connecting hole. The connecting assembly 400 also includes a second lug 420 disposed on the end peripheral surface of the second rod 120 facing the first rod 110, the second lug 420 having at least one second connecting hole. The first connecting hole and the second connecting hole are coaxially arranged and communicate to form a fastening hole. A connector 430 is disposed in the fastening hole, and fasteners 440 are disposed at both ends of the connector 430.
[0045] Please see Figure 1 As shown, in order to prevent the first rod 110 and the second rod 120 from rotating relative to each other after being connected by the snap-fit member 200 and the snap-fit block 300, thus releasing the snap-fit state, the rotation direction of the first rod 110 and the second rod 120 is limited by the connecting assembly 400 on their circumferential surfaces.
[0046] Specifically, a first lug 410 is fixedly provided at the circumferential end of the first rod 110, and a second lug 420 is fixedly provided at the circumferential end of the second rod 120. The first connecting hole on the first lug 410 and the second connecting hole on the second lug 420 are coaxially connected. It can be understood that when the first rod 110 drives the snap-fit 200 to rotate so that the snap-fit groove 202 engages with the snap-fit block 300, the first rod 110 also drives the first lug 410 to rotate to the position of the second lug 420. At this time, the first connecting hole and the second connecting hole are coaxial. After the first connecting hole and the second connecting hole are connected, a fastening hole is formed. A connector 430 is provided in the fastening hole, and fasteners 440 are connected to the two ends of the connector 430. The first lug 410 and the second lug 420 are connected by tightening the fasteners 440.
[0047] For example, if the fastener 440 is a nut, then the connector 430 can be a stud, with corresponding nuts installed at both ends of the stud for connection.
[0048] In another embodiment, the connector 430 can also be a bolt, in which case only one fastener 440 is needed for tightening.
[0049] In some embodiments, a second fixing member 800 is also fixedly disposed inside the second cavity 121, and the snap-fit member 200 abuts against the second fixing member 800.
[0050] Please see Figure 2 As shown, in order to ensure that the slot 202 accurately reaches the position of the block 300, a second fixing member 800 is fixedly installed in the second cavity 121. When the engaging part 220 penetrates into the area between the two blocks 300, the elastic member 600 will contract as it continues to extend, and then the end of the engaging part 220 will abut against the second fixing member 800. When the engaging part 220 abuts against the second fixing member 800, the slot 202 reaches the position of the block 300. At this time, the first rod 110 only needs to drive the driven part 210 and the engaging part 220 to rotate through the guide block 710 to make the slot 202 cooperate with the block 300 and complete the installation.
[0051] It should be noted that after the slot 202 engages with the block 300, the outer walls of the first rod 110 and the second rod 120 are connected by the connecting assembly 400, thereby limiting the circumferential direction of the first rod 110 and the second rod 120 and preventing them from rotating relative to each other and causing the slot 202 to separate from the block 300.
[0052] For example, the second fastener 800 can be fixedly installed in the second cavity 121 by welding.
[0053] This embodiment also provides a building construction machine, which includes the hanging rod connection device described in any one of the above descriptions.
[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0055] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A hanging bracket rod connecting device, characterized in that, include: The boom includes a first rod body (110) and a second rod body (120), the first rod body (110) having a first cavity (111) and the second rod body (120) having a second cavity (121). A snap-fit component (200) is disposed in the first cavity (111). The end face of the snap-fit component (200) facing the second rod (120) is provided with a relief groove (201) along its axial direction, and a snap-fit groove (202) is provided on the circumferential surface of the snap-fit component (200). A locking block (300) is fixedly disposed on the inner wall of the second cavity (121) and the locking block (300) is located in the locking slot (202); A connecting assembly (400) is provided, through which the first rod (110) and the second rod (120) are connected.
2. The hanger rod connecting device according to claim 1, characterized in that, The inner wall of the first cavity (111) is provided with a circumferential limiting component. The snap-fit member (200) is connected to the first rod body (110) through the circumferential limiting component. The circumferential limiting component includes a guide block (710) fixedly disposed on the inner wall of the first cavity (111) and a guide groove (720) opened on the circumferential surface of the snap-fit member (200). The guide block (710) is slidably disposed in the guide groove (720).
3. The hanger rod connecting device according to claim 2, characterized in that, The snap-fit member (200) is provided with a first fixing member (500) located in the first cavity (111) on the side opposite to the second rod body (120). An elastic member (600) is provided between the first fixing member (500) and the snap-fit member (200). One end of the elastic member (600) is connected to the snap-fit member (200), and the other end of the elastic member (600) opposite to the snap-fit member (200) is connected to the first fixing member (500).
4. The hanger rod connecting device according to claim 1, characterized in that, The number of the clearance slots (201) and the locking blocks (300) is N, satisfying: N≥1; When N≥2, the card block (300) is located on opposite sides of the inner wall of the second cavity (121), the clearance groove (201) is located on opposite sides of the circumferential direction of the card connector (200), and the card block (300) is correspondingly set in the card slot (202).
5. The hanger rod connecting device according to claim 4, characterized in that, A transition zone (301) is formed between the two card blocks (300) in opposite directions. The width of the transition zone (301) is L1. The side of the relief groove (201) facing the axis of the card (200) is a side surface (2011). The distance between the two side surfaces (2011) in opposite directions is L2, satisfying: L1≥L2.
6. The hanger rod connecting device according to claim 1, characterized in that, The hanging rod connecting device has a first direction, the length of the clearance groove (201) along the first direction is L3, and the length of the locking block (300) along the first direction is L4, satisfying: L3>L4.
7. The hanger rod connecting device according to claim 1, characterized in that, The snap-fit component (200) includes a driven part (210) and a snap-fit part (220). The driven part (210) and the snap-fit part (220) are integrally formed. The clearance groove (201) is opened on the end face of the snap-fit part (220) away from the driven part (210). The snap groove (202) is provided on the periphery of the snap-fit part (220).
8. The hanger rod connecting device according to claim 1, characterized in that, The connecting assembly (400) includes a first lug (410) disposed on the end periphery of the first rod (110) facing the second rod (120), and the first lug (410) has at least one first connecting hole. The connecting assembly (400) also includes a second lug (420) disposed on the end periphery of the second rod (120) facing the first rod (110), and the second lug (420) has at least one second connecting hole. The first connecting hole and the second connecting hole are coaxially arranged and communicate with each other to form a fastening hole. A connector (430) is disposed in the fastening hole, and fasteners (440) are disposed at both ends of the connector (430).
9. The hanger rod connecting device according to claim 1, characterized in that, A second fixing member (800) is also fixedly installed inside the second cavity (121), and the snap-fit member (200) abuts against the second fixing member (800).
10. A building construction machine, characterized in that, Includes the hanger rod connecting device according to any one of claims 1 to 9.