connection structure

Abstract

The application provides a connecting structure, comprising a main frame and a reinforcing frame. The main frame is provided with an avoiding hole. One end of the reinforcing frame is rotationally connected with an inner side wall of the avoiding hole, and the other end is provided with a connecting assembly for detachable connection with the other inner side wall of the avoiding hole and exerting tension on the main frame. When the power box needs to be maintained, the detachable connection between the connecting assembly and the main frame is released, so that the reinforcing frame can rotate relative to the main frame to avoid the power box, ensuring that the power box does not interfere with the reinforcing frame during maintenance and improving the practicability of the connecting structure. After the maintenance of the power box is completed, the reinforcing frame is rotated to a preset position, so that the connecting assembly can be re-detachably connected with the main frame and exert tension on the main frame, and then the reinforcing frame correspondingly pulls the two ends of the main frame towards the middle, so that the overall strength of the main frame is increased, and the reliability of the connecting structure is improved.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a connection structure. Background Technology

[0002] Currently, LED displays mainly consist of three parts: LED display modules, cabinet, and power supply box. Especially for special applications such as rental screens and grid screens, the power supply box is typically located in the middle of the back of the cabinet. When a frame structure needs to be installed on the back of the cabinet, the frame structure will interfere with the power supply box, affecting its maintenance. Summary of the Invention

[0003] Therefore, it is necessary to provide a connection structure to address the problem that the frame structure of the existing LED display screen interferes with the power supply box, thus affecting the maintenance of the power supply box.

[0004] The technical solution is as follows:

[0005] On the one hand, a connection structure is provided, including:

[0006] The main frame is provided with clearance holes;

[0007] A reinforcing frame is provided, one end of which is rotatably connected to one inner wall of the clearance hole, and the other end is provided with a connecting component, which is used to detachably connect to the other inner wall of the clearance hole and apply a tension force to the main frame.

[0008] In the above embodiments, the connection structure is installed on the back of the enclosure, with the clearance hole located in the middle of the back of the enclosure. This allows the power supply box to be installed in the middle of the back of the enclosure and within the main frame. When maintenance of the power supply box is required, the detachable connection between the connection component and the main frame is released, allowing the reinforcing frame to rotate relative to the main frame to avoid the power supply box. This ensures that the power supply box will not interfere with the reinforcing frame during maintenance, improving the practicality of the connection structure. After the power supply box maintenance is completed, the reinforcing frame rotates to a preset position, allowing the connection component to be detachably reconnected to the main frame and applying tension to the main frame. This allows the reinforcing frame to pull the two ends of the main frame towards the middle, increasing the overall strength of the main frame and improving the reliability of the connection structure. Furthermore, the connection structure strengthens the structural strength of the enclosure, meeting the requirements for higher ceiling heights of LED displays and further enhancing the practicality of the connection structure.

[0009] The technical solution will be further explained below:

[0010] In one embodiment, the other inner wall of the clearance hole is provided with a first connecting hole. The connecting component includes a telescopic pivot, which is movably disposed on the reinforcing frame. When the reinforcing frame rotates relative to the main frame to a first preset position, the telescopic pivot can extend into the first connecting hole and press the inner wall of the first connecting hole on the side close to the clearance hole.

[0011] In one embodiment, the end of the telescopic shaft near the first connecting hole is configured as an eccentric circular shaft end, which is eccentrically positioned relative to the first connecting hole. When the eccentric circular shaft end extends into the first connecting hole, it is clearance-fitted with the first connecting hole. When the eccentric circular shaft end extends into the second preset position within the first connecting hole, it is interference-fitted with the first connecting hole to press against the inner wall of the first connecting hole on the side near the clearance hole.

[0012] In one embodiment, the reinforcing frame is provided with a second connecting hole corresponding to the first connecting hole, the outer wall of the telescopic shaft is provided with a sliding part, the sliding part is slidably engaged with the inner wall of the second connecting hole along a spiral line, and the connecting assembly further includes an operating member, the operating member is drivenly engaged with the end of the telescopic shaft away from the first connecting hole, so as to drive the telescopic shaft to extend into or move out of the first connecting hole.

[0013] In one embodiment, the sliding part is configured as a spiral groove, the reinforcing frame is further provided with a third connecting hole, the third connecting hole extends to the inner sidewall of the second connecting hole, and the connecting assembly further includes a first limiting member, the first limiting member passes through the third connecting hole and slides in cooperation with the spiral groove.

[0014] In one embodiment, the reinforcing frame is provided with two first connecting parts at intervals near one end of the operating member. Each of the two first connecting parts is provided with a second connecting hole. There are two first connecting holes and two telescopic rotating shafts. The operating member is disposed between the two first connecting parts and is correspondingly connected to the two telescopic rotating shafts. The two telescopic rotating shafts are correspondingly provided with the two first connecting holes and the two second connecting holes.

[0015] In one embodiment, the operating member is provided with a fourth connecting hole corresponding to the second connecting hole and a fifth connecting hole corresponding to and communicating with the fourth connecting hole. The end of the telescopic rotating shaft near the operating member extends into the fourth connecting hole and is provided with a first sliding hole corresponding to the fifth connecting hole. The first sliding hole is arranged along the axial direction of the telescopic rotating shaft. The connecting component also includes a pin, which passes through the fifth connecting hole and the first sliding hole and slides with the first sliding hole.

[0016] In one embodiment, the connection structure further includes a locking component that, when the telescopic shaft extends into the first connection hole and presses against the inner wall of the first connection hole near the clearance hole, optionally engages with the operating member to restrict the rotation of the operating member.

[0017] In one embodiment, the operating member is provided with a limiting portion, and the reinforcing frame is also provided with a mounting hole and a second sliding hole at one end near the operating member. The second sliding hole extends to the inner wall of the mounting hole and is arranged along the axial direction of the mounting hole. The locking assembly includes an elastic member, a latch, and an unlocking member. The elastic member and the latch are both installed in the mounting hole. The elastic member is located on the side of the latch away from the limiting portion and is used to push the latch to move in a direction close to the limiting portion, so that the latch can be limited to cooperate with the limiting portion to restrict the rotation of the operating member. The unlocking member passes through the second sliding hole and is drivenly connected to the latch. The unlocking member is used to drive the latch to move in a direction away from the limiting portion, so that the limiting cooperation between the latch and the limiting portion can be released.

[0018] In one embodiment, the connecting structure further includes a fixed rotating shaft and a second limiting member. The end of the reinforcing frame away from the connecting assembly is provided with a sixth connecting hole and a seventh connecting hole. The seventh connecting hole extends to the inner sidewall of the sixth connecting hole. An eighth connecting hole is provided on the inner sidewall of the clearance hole, corresponding to the sixth connecting hole. One end of the fixed rotating shaft extends into the sixth connecting hole and is rotatably engaged with it. The other end extends into the eighth connecting hole and is rotatably engaged with it. The outer sidewall of the fixed rotating shaft is also provided with an annular groove corresponding to the seventh connecting hole. The second limiting member passes through the seventh connecting hole and is limited and engaged with the inner sidewall of the annular groove. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the connection structure in one embodiment.

[0022] Figure 2 for Figure 1 Exploded view of the connection structure.

[0023] Figure 3 for Figure 2 Exploded view of the reinforcing frame, connecting components and locking components.

[0024] Figure 4 for Figure 3 A magnified view of part A in the middle.

[0025] Figure 5 for Figure 3 A magnified view of part B in the middle section.

[0026] Figure 6 for Figure 3 A magnified view of part C in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Connecting structure; 110. Main frame; 111. Clearance hole; 112. First connecting hole; 113. Eighth connecting hole; 120. Reinforcing frame; 121. Second connecting hole; 122. Third connecting hole; 123. First connecting part; 124. Mounting hole; 125. Second sliding hole; 126. Sixth connecting hole; 127. Seventh connecting hole; 128. Second connecting part; 130. Connecting assembly; 131. Telescopic pivot; 311. Eccentric round shaft end; 1312. First sliding hole; 132. Operating component; 1321. Fourth connecting hole; 1322. Fifth connecting hole; 1323. Limiting part; 133. First limiting component; 134. Pin; 140. Locking assembly; 141. Elastic component; 142. Tongue; 143. Unlocking component; 144. Retaining ring; 145. Connecting screw; 151. Fixed rotating shaft; 1511. Annular groove; 152. Second limiting component. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, in one embodiment, a connection structure 100 is provided, including a main frame 110 and a reinforcing frame 120. The main frame 110 has a clearance hole 111. One end of the reinforcing frame 120 is rotatably connected to one inner wall of the clearance hole 111, and the other end is provided with a connecting assembly 130. The connecting assembly 130 is used for detachable connection to the other inner wall of the clearance hole 111 and applies a tension force to the main frame 110.

[0031] In the above embodiment, the connection structure 100 is installed on the back of the enclosure, with the clearance hole 111 located in the middle of the back of the enclosure, allowing the power box to be installed in the middle of the back of the enclosure and within the main frame 110. When maintenance of the power box is required, the detachable connection between the connection component 130 and the main frame 110 is released, allowing the reinforcing frame 120 to rotate relative to the main frame 110 to avoid the power box, ensuring that the power box does not interfere with the reinforcing frame 120 during maintenance, thus improving the practicality of the connection structure 100. After the power box maintenance is completed, the reinforcing frame 120 rotates to a preset position, allowing the connection component 130 to be detachably reconnected to the main frame 110, and applying a tension force to the main frame 110. This allows the reinforcing frame 120 to pull the two ends of the main frame 110 towards the middle, thereby increasing the overall strength of the main frame 110 and improving the reliability of the connection structure 100. In addition, the connecting structure 100 can strengthen the structural strength of the cabinet, meet the requirements of LED display screen to achieve higher hoisting height, and improve the practicality of the connecting structure 100.

[0032] The connecting component 130 can be configured as a snap-fit ​​component, plug-in component, fastening component, hook component, or other structure.

[0033] like Figure 2 , Figure 4 and Figure 5 As shown, further, the other inner wall of the clearance hole 111 is provided with a first connecting hole 112. The connecting assembly 130 includes a telescopic pivot 131, which is movably mounted on the reinforcing frame 120. When the reinforcing frame 120 rotates relative to the main frame 110 to a first preset position, the telescopic pivot 131 can extend into the first connecting hole 112 and press the inner wall of the first connecting hole 112 near the clearance hole 111. Thus, by controlling the movement of the telescopic pivot 131 relative to the first connecting hole 112, the telescopic pivot 131 can correspondingly connect the reinforcing frame 120 and the main frame 110 and maintain a locked state, or correspondingly release the connection between the reinforcing frame 120 and the main frame 110 and maintain an unlocked state, thereby improving the convenience and efficiency of power box maintenance.

[0034] The first preset position refers to the position of the reinforcing frame 120 relative to the main frame 110 when the telescopic shaft 131 can freely extend into or out of the first connecting hole 112 along the axial direction of the telescopic shaft 131.

[0035] like Figure 3 , Figure 4 and Figure 5 As shown, optionally, the end of the telescopic shaft 131 near the first connecting hole 112 is configured as an eccentric round shaft end 1311. The eccentric round shaft end 1311 is eccentrically positioned with respect to the first connecting hole 112. When the eccentric round shaft end 1311 extends into the first connecting hole 112, it has a clearance fit with the first connecting hole 112. When the eccentric round shaft end 1311 extends into the second preset position within the first connecting hole 112, it has an interference fit with the first connecting hole 112, thereby pressing against the inner wall of the first connecting hole 112 near the clearance hole 111. In this way, during the process of the eccentric round shaft end 1311 extending into the second preset position, the eccentric round shaft end 1311 and the first connecting hole 112 can gradually transition from a clearance fit to an interference fit, improving the ease of use of the connection structure 100.

[0036] Specifically, in this embodiment, when the eccentric circular shaft end 1311 extends into the first connecting hole 112, a gap is formed between the eccentric circular shaft end 1311 and the inner wall of the first connecting hole 112 near the clearance hole 111. As the telescopic shaft 131 continues to extend into the first connecting hole 112, the gap gradually decreases until the eccentric circular shaft end 1311 extends into the second preset position within the first connecting hole 112, at which point the eccentric circular shaft end 1311 presses against the inner wall of the first connecting hole 112 near the clearance hole 111. In other embodiments, the end of the telescopic shaft 131 away from the first connecting hole 112 is set as a perfectly round shaft end, which can maintain its rotation around the central axis.

[0037] like Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the reinforcing frame 120 is provided with a second connecting hole 121 corresponding to the first connecting hole 112. The outer wall of the telescopic shaft 131 is provided with a sliding part (not shown). The sliding part slides along a spiral line with the inner wall of the second connecting hole 121. The connecting assembly 130 also includes an operating member 132. The operating member 132 is driven to the end of the telescopic shaft 131 away from the first connecting hole 112, so as to drive the telescopic shaft 131 to extend into or move out of the first connecting hole 112. In this way, the operating member 132 can drive the telescopic shaft 131 to rotate, and under the guidance of the sliding part, the telescopic shaft 131 makes a spiral motion. Thus, by rotating the operating member 132 in different directions and angles, the telescopic shaft 131 can be extended or retracted, improving the convenience of using the connecting structure 100.

[0038] In other embodiments, the telescopic shaft 131 can also be driven by hydraulic, pneumatic, telescopic motor or other means, as long as the telescopic shaft 131 can selectively extend into the first connecting hole 112 and squeeze the inner sidewall of the first connecting hole 112 near the avoidance hole 111.

[0039] The operating component 132 can be an operating handle, an operating knob, an operating wrench, or other operating structure. Specifically, in this embodiment, the eccentric circular shaft end 1311 can cooperate with the first connecting hole 112 to realize the function of opening and closing the reinforcing frame 120 relative to the main frame 110.

[0040] like Figure 2 , Figure 4 and Figure 5 As shown, optionally, the sliding part is configured as a spiral groove, and the reinforcing frame 120 is also provided with a third connecting hole 122, which extends to the inner sidewall of the second connecting hole 121. The connecting assembly 130 also includes a first limiting member 133, which passes through the third connecting hole 122 and slides in cooperation with the spiral groove. In this way, the first limiting member 133 and the spiral groove can cooperate to play a guiding role, ensuring that the telescopic rotating shaft 131 can perform spiral movement to correspondingly extend into or move out of the first connecting hole 112, thereby improving the reliability of the connecting structure 100.

[0041] In this specific embodiment, the first limiting member 133 is set as a first limiting screw.

[0042] like Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the reinforcing frame 120 has two first connecting portions 123 spaced apart at one end near the operating member 132. Each of the two first connecting portions 123 has a second connecting hole 121. There are two first connecting holes 112 and two telescopic pivots 131. The operating member 132 is positioned between the two first connecting portions 123 and is correspondingly connected to the two telescopic pivots 131. The two telescopic pivots 131 are correspondingly positioned with the two first connecting holes 112 and the two second connecting holes 121. Thus, the reinforcing frame 120 can lock into the main frame 110 on both sides through the two telescopic pivots 131, resulting in a more uniform distribution of the tension force of the reinforcing frame 120 on the main frame 110 and improving the reliability of the connection structure 100.

[0043] like Figure 2 , Figure 4 and Figure 5As shown, the operating member 132 further includes a fourth connecting hole 1321 corresponding to the second connecting hole 121 and a fifth connecting hole 1322 communicating with the fourth connecting hole 1321. The telescopic shaft 131 extends into the fourth connecting hole 1321 at one end near the operating member 132 and is provided with a first sliding hole 1312 corresponding to the fifth connecting hole 1322. The first sliding hole 1312 is arranged along the axial direction of the telescopic shaft 131. The connecting assembly 130 also includes a pin 134, which passes through the fifth connecting hole 1322 and the first sliding hole 1312 and slides in cooperation with the first sliding hole 1312. Thus, the pin 134 can restrict the rotation of the telescopic shaft 131 relative to the operating member 132, while the telescopic shaft 131 can slide relative to the pin 134 through the first sliding hole 1312 along the axial direction of the telescopic shaft 131, ensuring that while the operating member 132 rotates, the telescopic shaft 131 will rotate synchronously with the operating member 132 and extend and retract along the axial direction of the telescopic shaft 131 to correspondingly extend into or move out of the first connecting hole 112, thereby improving the ease of use of the connection structure 100.

[0044] like Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the connecting structure 100 further includes a locking assembly 140. When the telescopic pivot 131 extends into the first connecting hole 112 and presses against the inner wall of the first connecting hole 112 near the clearance hole 111, the locking assembly 140 optionally locks into the operating member 132 to restrict the rotation of the operating member 132. Thus, the locking assembly 140 can limit the position of the operating member 132 relative to the reinforcing frame 120, ensuring that the reinforcing frame 120 can maintain a state of pulling the main frame 110 towards the center, thereby improving the reliability and stability of the connecting structure 100.

[0045] The locking component 140 can be configured as a locking buckle, locking clamp, locking fixture or other locking structure.

[0046] like Figure 2 , Figure 4 and Figure 5As shown, optionally, the operating member 132 is provided with a limiting part 1323, and the reinforcing frame 120 is also provided with a mounting hole 124 and a second sliding hole 125 at one end near the operating member 132. The second sliding hole 125 extends to the inner sidewall of the mounting hole 124 and is arranged along the axial direction of the mounting hole 124. The locking assembly 140 includes an elastic member 141, a latch 142 and an unlocking member 143. The elastic member 141 and the latch 142 are both installed in the mounting hole 124, and the elastic member 141 is located at the latch. 142 is located away from the limiting part 1323 and is used to push the latch 142 to move in a direction close to the limiting part 1323, so that the latch 142 can be limited to cooperate with the limiting part 1323 to restrict the rotation of the operating member 132. The unlocking member 143 passes through the second sliding hole 125 and is connected to the latch 142 in a transmission manner. The unlocking member 143 is used to drive the latch 142 to move in a direction away from the limiting part 1323, so that the limiting cooperation between the latch 142 and the limiting part 1323 can be released.

[0047] Specifically, in this embodiment, the elastic element 141 is a spring, and the locking assembly 140 also includes a retaining ring 144. The retaining ring 144 is located on the side of the spring away from the latch 142 and abuts against the spring to ensure that the spring is limited within the mounting hole 124 and can be compressed. The latch 142 is provided with a threaded hole extending along the axial direction of the mounting hole 124. The outer side wall of the latch 142 is provided with a first insertion hole corresponding to and communicating with the threaded hole. The unlocking element 143 is provided with an unlocking button. One end of the unlocking button passes through the second sliding hole 125 and the first insertion hole and extends into the threaded hole. The other end of the unlocking button is provided with a second insertion hole corresponding to and communicating with the threaded hole. The unlocking assembly also includes a connecting screw 145. The connecting screw 145 passes through the second insertion hole and is threadedly connected to the threaded hole, so that the unlocking button and the latch 142 are fixed together, improving the reliability of the connection structure 100.

[0048] like Figure 2 , Figure 3 and Figure 6As shown, in one embodiment, the connecting structure 100 further includes a fixed rotating shaft 151 and a second limiting member 152. The end of the reinforcing frame 120 away from the connecting assembly 130 is provided with a sixth connecting hole 126 and a seventh connecting hole 127. The seventh connecting hole 127 extends to the inner sidewall of the sixth connecting hole 126. An inner sidewall of the clearance hole 111 is provided with an eighth connecting hole 113 corresponding to the sixth connecting hole 126. One end of the fixed rotating shaft 151 extends into the sixth connecting hole 126 and rotates with the sixth connecting hole 126. The other end extends into the eighth connecting hole 113 and rotates with the eighth connecting hole 113. The outer sidewall of the fixed rotating shaft 151 is also provided with an annular groove 1511 corresponding to the seventh connecting hole 127. The second limiting member 152 passes through the seventh connecting hole 127 and is limited and engaged with the inner sidewall of the annular groove 1511. Thus, the reinforcing frame 120 can be hinged to the main frame 110 via the fixed pivot 151, allowing the reinforcing frame 120 to rotate relative to the main frame 110. This ensures the strength of the connection structure 100 without affecting the maintenance of the power supply box, thereby improving the practicality of the connection structure 100.

[0049] Specifically, in this embodiment, the distance between the central axis of the fixed rotating shaft 151 and the central axis of the telescopic rotating shaft 131 is the first distance, and the distance between the central axis of the first connecting hole 112 and the central axis of the eighth connecting hole 113 is the second distance, with the first distance being smaller than the second distance. This ensures that the two ends of the reinforcing frame 120 can correspondingly tighten the two ends of the main frame 110, keeping the main frame 110 in a state of being pulled towards the center, thus improving the overall strength and reliability of the connecting structure 10.

[0050] like Figure 2 and Figure 6 As shown, optionally, two second connecting portions 128 are provided at intervals at the end of the reinforcing frame 120 away from the operating member 132. Each of the two second connecting portions 128 is provided with a sixth connecting hole 126 and a seventh connecting hole 127. There are two eighth connecting holes 113, two fixed rotating shafts 151, and two second limiting members 152. The two fixed rotating shafts 151 are correspondingly provided with the two sixth connecting holes 126, the two seventh connecting holes 127, the two eighth connecting holes 113, and the two second limiting members 152. The second limiting members 152 are set as second limiting screws. In this way, the reinforcing frame 120 is rotatably connected to the main frame 110 on both sides through the two fixed rotating shafts 151, so that the tension force of the reinforcing frame 120 on the main frame 110 is more evenly distributed, improving the reliability of the connection structure 100.

[0051] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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.

[0052] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0055] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0056] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A connection structure, characterized in that, include: The main frame is provided with clearance holes; A reinforcing frame is provided, one end of which is rotatably connected to one inner wall of the clearance hole, and the other end is provided with a connecting component, which is used to detachably connect to the other inner wall of the clearance hole and apply a tension force to the main frame. The other inner wall of the clearance hole is provided with a first connecting hole. The connecting component includes a telescopic rotating shaft, which is movably mounted on the reinforcing frame. When the reinforcing frame rotates relative to the main frame to a first preset position, the telescopic rotating shaft can extend into the first connecting hole and press the inner wall of the first connecting hole on the side close to the clearance hole. The reinforcing frame is provided with a second connecting hole corresponding to the first connecting hole. The outer side wall of the telescopic shaft is provided with a sliding part. The sliding part slides in a spiral with the inner side wall of the second connecting hole. The connecting assembly also includes an operating member. The operating member is driven in a transmission engagement with the end of the telescopic shaft away from the first connecting hole, so as to drive the telescopic shaft to extend into or move out of the first connecting hole.

2. The connection structure according to claim 1, characterized in that, The end of the telescopic shaft near the first connecting hole is set as an eccentric round shaft end. The eccentric round shaft end is eccentrically set to the first connecting hole. When the eccentric round shaft end is inserted into the first connecting hole, the eccentric round shaft end and the first connecting hole are in clearance fit. When the eccentric round shaft end is inserted into the second preset position in the first connecting hole, the eccentric round shaft end and the first connecting hole are in interference fit to press the inner sidewall of the first connecting hole near the clearance hole.

3. The connection structure according to claim 1, characterized in that, The sliding part is configured as a spiral groove, and the reinforcing frame is also provided with a third connecting hole. The third connecting hole extends to the inner sidewall of the second connecting hole. The connecting assembly also includes a first limiting member, which passes through the third connecting hole and slides in cooperation with the spiral groove.

4. The connection structure according to claim 1, characterized in that, The reinforcing frame is provided with two first connecting parts at intervals near one end of the operating member. Each of the two first connecting parts is provided with a second connecting hole. There are two first connecting holes and two telescopic rotating shafts. The operating member is disposed between the two first connecting parts and is correspondingly connected to the two telescopic rotating shafts. The two telescopic rotating shafts are correspondingly provided with the two first connecting holes and the two second connecting holes.

5. The connection structure according to claim 1, characterized in that, The operating component is provided with a fourth connecting hole corresponding to the second connecting hole and a fifth connecting hole corresponding to and communicating with the fourth connecting hole. The end of the telescopic rotating shaft near the operating component extends into the fourth connecting hole and is provided with a first sliding hole corresponding to the fifth connecting hole. The first sliding hole is arranged along the axial direction of the telescopic rotating shaft. The connecting component also includes a pin, which passes through the fifth connecting hole and the first sliding hole and slides with the first sliding hole.

6. The connection structure according to claim 5, characterized in that, The connection structure also includes a locking component. When the telescopic shaft extends into the first connection hole and presses against the inner wall of the first connection hole near the clearance hole, the locking component can optionally lock into the operating member to restrict the rotation of the operating member.

7. The connection structure according to claim 6, characterized in that, The operating component is provided with a limiting part. The reinforcing frame is also provided with a mounting hole and a second sliding hole at one end near the operating component. The second sliding hole extends to the inner sidewall of the mounting hole and is arranged along the axial direction of the mounting hole. The locking assembly includes an elastic element, a latch, and an unlocking element. The elastic element and the latch are both installed in the mounting hole. The elastic element is located on the side of the latch away from the limiting part and is used to push the latch to move in a direction close to the limiting part, so that the latch can be limited to cooperate with the limiting part to restrict the rotation of the operating component. The unlocking element passes through the second sliding hole and is drivenly connected to the latch. The unlocking element is used to drive the latch to move in a direction away from the limiting part, so that the limiting cooperation between the latch and the limiting part can be released.

8. The connection structure according to any one of claims 1 to 7, characterized in that, The connecting structure further includes a fixed rotating shaft and a second limiting member. The end of the reinforcing frame away from the connecting assembly is provided with a sixth connecting hole and a seventh connecting hole. The seventh connecting hole extends to the inner sidewall of the sixth connecting hole. An eighth connecting hole is provided on the inner sidewall of the clearance hole, corresponding to the sixth connecting hole. One end of the fixed rotating shaft extends into the sixth connecting hole and is rotatably engaged with it. The other end extends into the eighth connecting hole and is rotatably engaged with it. The outer sidewall of the fixed rotating shaft is also provided with an annular groove corresponding to the seventh connecting hole. The second limiting member passes through the seventh connecting hole and is limited and engaged with the inner sidewall of the annular groove.

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