Anti-sway device and ladder

Abstract

An anti-sway device and a ladder belong to the technical field of climbing equipment. The anti-sway device includes: a connecting assembly, a rotating locking mechanism and a telescopic rod. The rotating locking mechanism is respectively connected to the connecting assembly and the telescopic rod, and is used to adjust the angle between the connecting assembly and the telescopic rod and lock it. The ladder includes the above-mentioned anti-sway device. The anti-sway device can reduce the possibility of the ladder tipping over during use, thereby improving the stability and safety of the ladder.

Description

Technical Field

[0001] The present invention relates to the technical field of climbing work equipment, and in particular to an anti-sway device and a ladder. Background Art

[0002] Ladders are tools for people to climb up and are widely used in homes, industrial and mining enterprises, construction and decoration industries, power construction and maintenance, communications industry, fire fighting, shopping malls and office maintenance. Generally, ladders are composed of two long and thick support poles as vertical sides, and a horizontal side suitable for climbing in the middle.

[0003] During the use of ladders, there is often a risk that the eccentric load applied to the ladder by the operator when climbing the ladder may cause the ladder and the person to topple over, thereby causing injuries to the person during the height operation. Summary of the invention

[0004] The object of the present invention is to provide an anti-sway device and a ladder, which can reduce the chance of the ladder tipping over during use and improve the stability and safety of the ladder.

[0005] The embodiment of the present invention is achieved as follows:

[0006] According to one aspect of an embodiment of the present invention, an anti-sway device is provided, comprising: a connecting assembly, a rotation locking mechanism and a telescopic rod, wherein the rotation locking mechanism is respectively connected to the connecting assembly and the telescopic rod, and is used to adjust and lock the angle between the connecting assembly and the telescopic rod.

[0007] Further, the rotation locking mechanism includes a connecting shaft and a stop portion, a first connecting member, a second connecting member and a locking member which are sequentially sleeved on the connecting shaft, the connecting shaft is fixedly connected to the stop portion, the locking member is movably connected to the connecting shaft, the first connecting member is arranged on the connecting assembly, the second connecting member is arranged on the telescopic rod, and the locking member is used to provide a force to the second connecting member so that the stop portion, the first connecting member and the second connecting member are abutted and locked.

[0008] Further, the connecting shaft is a screw rod, the locking member is a first nut, and the first nut is rotated and moved on the screw rod so that the stopper, the first connecting member and the second connecting member are abutted and locked.

[0009] Furthermore, the locking member includes a locking shaft and a locking block, the locking shaft is vertically inserted into the end of the connecting shaft away from the stop portion, the locking block is rotatably arranged on the locking shaft, the locking member has a mating surface, and the mating surface is an eccentric arc surface. The locking block is rotated to make the stop portion, the first connecting member and the second connecting member abut and lock.

[0010] Furthermore, a surface of the first connecting member facing the second connecting member is provided with first face teeth, and a surface of the second connecting member facing the first connecting member is provided with second face teeth, and the first face teeth and the second face teeth are used to engage with each other when the first connecting member and the second connecting member are abutted and locked.

[0011] Furthermore, the connecting assembly includes a fixed part, a movable part and a fastener, the first end of the fixed part is hinged to the first end of the movable part, and the second end of the fixed part is connected to the second end of the movable part via the fastener.

[0012] Furthermore, the fastener includes a first bolt and a second nut.

[0013] Furthermore, the connecting component includes a fixed part and two movable parts slidably arranged on both sides of the fixed part, the two ends of the two movable parts are respectively connected by second bolts, and the first connecting part is arranged at one end of the fixed part away from the movable part.

[0014] Furthermore, the telescopic rod includes an outer rod body, an inner rod body sleeved in the outer rod body, and a locking body rotatably arranged outside the outer rod body, the outer rod body and the locking body are both provided with a slide groove along the axial direction, the inner rod body is provided with a boss along the axial direction, the slide groove cooperates with the boss, the boss is provided with an external thread, the locking body is provided with an internal thread, and the external thread cooperates with the internal thread.

[0015] Furthermore, the anti-sway device provided in an embodiment of the present invention also includes an elastic member, which is sleeved in the outer rod body, and the two ends of the elastic member are respectively connected to the rotation locking mechanism and the inner rod body, and the elastic member is used to apply elastic force to the inner rod body so that the inner rod body has a tendency to move in a direction away from the outer rod body.

[0016] Furthermore, a convex portion is provided on an outer edge of the first connecting member, and the convex portion faces the second connecting member and is used to limit an angle between the connecting assembly and the telescopic rod.

[0017] Furthermore, an anti-slip pad is provided on one end of the telescopic rod away from the rotation locking mechanism.

[0018] Another aspect of an embodiment of the present invention provides a ladder, comprising: an anti-sway device according to any one of the above items.

[0019] The beneficial effects of the embodiments of the present invention include:

[0020] The anti-sway device provided in the embodiment of the present invention can be installed on the member to be supported through the connection assembly. By setting a rotation locking mechanism and a telescopic rod, the anti-sway device can rotate the telescopic rod to make it form a certain angle with the member to be supported during use, and through the telescopic characteristics of the telescopic rod, the telescopic rod is lengthened and supported on the ground. By using the rotation locking mechanism to lock the connection assembly and the telescopic rod, the connection assembly and the telescopic rod are fixedly connected, and the anti-sway device of this embodiment can provide stable support for the member to be supported. The anti-sway device of this embodiment can reduce the possibility of the member to be supported tipping over during use, and improve the support stability and use safety of the member to be supported.

[0021] The ladder provided in the embodiment of the present invention adopts the above-mentioned anti-sway device, which can reduce the possibility of the ladder tipping over during use and improve the stability and safety of the ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 One of the structural schematic diagrams of the anti-sway device provided in an embodiment of the present invention;

[0024] Figure 2 A second structural schematic diagram of the anti-sway device provided in an embodiment of the present invention;

[0025] Figure 3 A second structural schematic diagram of a rotation locking mechanism provided by an embodiment of the present invention;

[0026] Figure 4 A third structural diagram of the rotation locking mechanism provided by an embodiment of the present invention;

[0027] Figure 5 One of the structural schematic diagrams of the connection assembly provided in an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the structure of a telescopic rod provided in an embodiment of the present invention;

[0029] Figure 7 A schematic diagram of the structure of a locking body provided by an embodiment of the present invention;

[0030] Figure 8 The second structural schematic diagram of the connection component provided in the embodiment of the present invention.

[0031] Icons: 100-anti-sway device; 110-connecting assembly; 111-fixed part; 112-movable part; 113-first end of fixed part; 114-first end of movable part; 115-second end of fixed part; 116-second end of movable part; 117-fastener; 118-first bolt; 119-second nut; 120-rotation locking mechanism; 122-first connecting member; 123-second connecting member; 124-connecting shaft; 125-locking member; 126-fastener; 127-fastener; 128-first bolt; 129-second nut; 130-rotation locking mechanism; 131-first connecting member; 132-second connecting member; 133-second connecting member; 134-connecting shaft; 135-locking member; 136-fastener; 137-fastener; 138-first bolt; 139-second nut; 140-rotation locking mechanism; 141-first connecting member; 142-second connecting member; 143-second connecting member; 144-connecting shaft; 145-locking member; 146-second connecting member; 147-fastener; 148-first bolt; 149-second nut; 150-rotation locking mechanism; 151-first connecting member; 152-second connecting member; 153-second connecting member; 154-second connecting member; 155-second connecting member; 156-second connecting member; 157-second connecting member; 158-second connecting member; 159-second connecting member; 160-second connecting member; 161-second connecting member; 162-second connecting member; 163-second connecting member; 164-second connecting shaft; 165-second connecting member; 7-locking block; 128-locking shaft; 129-matching surface; 130-telescopic rod; 131-outer rod body; 132-inner rod body; 133-locking body; 134-slide groove; 135-boss; 136-external thread; 137-internal thread; 140-elastic member; 150-anti-slip pad; 211-fixing member; 212-movable member; 213-second bolt; 221-first face tooth; 223-convex portion; 224-limiting surface; 225-stop portion. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Please refer to Figure 1 An embodiment of the present invention provides an anti-sway device 100, including: a connecting component 110, a rotation locking mechanism 120 and a telescopic rod 130, wherein the rotation locking mechanism 120 is respectively connected to the connecting component 110 and the telescopic rod 130, and is used to adjust the angle between the connecting component 110 and the telescopic rod 130 and lock it.

[0039] It should be noted that the connecting assembly 110 is used to connect the rotation locking mechanism 120 and the telescopic rod 130 with the member to be supported.

[0040] When using the anti-sway device 100 of the embodiment of the present invention, first operate the rotation locking mechanism 120 to release the fixed connection between the connecting assembly 110 and the telescopic rod 130, so that the connecting assembly 110 and the telescopic rod 130 are movably connected, then the telescopic rod 130 is made to form a certain angle with the supported member, and the distance of the telescopic rod 130 is extended until the end of the telescopic rod 130 away from the rotation locking mechanism 120 reaches the target position, and the rotation locking mechanism 120 is operated to make the connecting assembly 110 and the telescopic rod 130 fixedly connected, that is, the angle between the connecting assembly 110 and the telescopic rod 130 is fixed, so that the anti-sway device 100 can support the supported member. When the anti-sway device 100 of the present embodiment is not needed, operate the rotation locking mechanism 120 to release the fixed connection between the connecting assembly 110 and the telescopic rod 130, then reduce the length of the telescopic rod 130, and rotate the telescopic rod 130 to make it close to the supported member, so as to reduce the occupied space of the anti-sway device 100 of the present embodiment.

[0041] The anti-sway device 100 provided in the embodiment of the present invention can be installed on the member to be supported through the connection component 110. By setting the rotation locking mechanism 120 and the telescopic rod 130, the anti-sway device 100 can rotate the telescopic rod 130 during use to make it form a certain angle with the member to be supported, and through the telescopic characteristics of the telescopic rod 130, the telescopic rod 130 is lengthened and supported on the ground. By using the rotation locking mechanism 120 to lock the connection component 110 and the telescopic rod 130, the connection component 110 and the telescopic rod 130 are fixedly connected, and the anti-sway device 100 of this embodiment can provide stable support for the member to be supported. The anti-sway device 100 of this embodiment can reduce the possibility of the member to be supported tipping over during use, and improve the support stability and use safety of the member to be supported.

[0042] Optional, see Figure 3 The rotation locking mechanism 120 includes a connecting shaft 124 and a stopper 225, a first connecting member 122, a second connecting member 123 and a locking member 125 which are sequentially sleeved on the connecting shaft 124. The connecting shaft 124 is fixedly connected to the stopper 225, and the locking member 125 is movably connected to the connecting shaft 124. The first connecting member 122 is arranged on the connecting assembly 110, and the second connecting member 123 is arranged on the telescopic rod 130. The locking member 125 is used to provide a force for the second connecting member 123 to make the stopper 225, the first connecting member 122 and the second connecting member 123 abut and lock.

[0043] When the angle between the connecting assembly 110 and the telescopic rod 130 needs to be adjusted, the first connecting member 122 and the second connecting member 123 are separated by operating the locking member 125, so that the connecting assembly 110 and the telescopic rod 130 can rotate relative to each other; the telescopic rod 130 is adjusted to the target position at one end of the telescopic rod 130 away from the rotation locking mechanism 120, and the locking member 125 is operated to make the first connecting member 122 and the second connecting member 123 abut against each other and have a certain friction force, so that the angle adjustment between the connecting assembly 110 and the telescopic rod 130 can be completed. Therefore, the above structure makes the angle between the connecting assembly 110 and the telescopic rod 130 of the anti-sway device 100 of this embodiment more convenient and simple.

[0044] It should be noted that the setting method of the stopper 225 in the embodiment of the present invention is not specifically limited. For example, the stopper 225 can be directly set at one end of the connecting shaft 124, or the stopper 225 can be set on the connecting component 110.

[0045] In addition, the rotation locking mechanism 120 may also adopt a ball joint in addition to the above structure.

[0046] Please refer to Figure 3The connecting shaft 124 is a screw rod, and the locking member 125 is a first nut. The first nut rotates and moves on the screw rod so that the stopper 225, the first connecting member 122 and the second connecting member 123 abut and lock.

[0047] In this way, the connection state between the first connecting member 122 and the second connecting member 123 is adjusted by adjusting the position of the first nut on the screw rod. Specifically, the first nut is rotated to move toward the direction of the first connecting member 122, thereby forcing the second connecting member 123 to move toward the direction of the first connecting member 122 until the second connecting member 123 abuts against the first connecting member 122, and the first nut provides a positive pressure for the second connecting member 123, thereby generating friction between the stopper 225, the first connecting member 122 and the second connecting member 123, locking the positions of the first connecting member 122 and the second connecting member 123, and preventing relative movement between the two.

[0048] Optionally, the first nut is a butterfly nut. In this way, when the first connecting member 122 and the second connecting member 123 need to be released from the abutting state or restored to the abutting state, the operator can directly rotate the butterfly nut by hand without the aid of external tools.

[0049] In addition, the locking member 125 may also adopt the following structure besides the above structure: Figure 4 The structure shown: the locking member 125 includes a locking shaft 128 and a locking block 127. The locking shaft 128 is vertically penetrated through the end of the connecting shaft 124 away from the stop portion 225. The locking block 127 is rotatably arranged on the locking shaft 128. The locking member 125 has a mating surface 129, and the mating surface 129 is an eccentric arc surface. The locking block 127 is rotated to make the stop portion 225, the first connecting member 122 and the second connecting member 123 abut and lock.

[0050] The mating surface 129 is an eccentric arc surface, which means that the center of the eccentric arc surface does not coincide with the rotation center of the locking block 127. Therefore, when the locking block 127 rotates and the mating surface 129 contacts the second connecting member 123, the pressure between the rotation center of the locking member 125 and the second connecting member 123 changes. That is, when the distance between the rotation center of the locking block 127 and the contact part of the mating surface 129 with the second connecting member 123 is the smallest, there is a gap between the first connecting member 122 and the second connecting member 123, and the pressure between the two is zero. When the distance between the rotation center of the locking block 127 and the contact part of the mating surface 129 with the second connecting member 123 is the largest, the first connecting member 122 and the second connecting member 123 are abutted and pressed and locked, and the pressure reaches the maximum value at this time. The above structure makes the angle between the connecting assembly 110 and the telescopic rod 130 of the anti-sway device 100 of this embodiment more convenient and simple.

[0051] To facilitate the rotation operation of the locking block 127 , a handle may be provided on the end of the locking block 127 away from the mating surface 129 .

[0052] Optionally, in order to reduce the poor stability of the locking member 125 on the stop portion 225, the first connecting member 122 and the second connecting member 123 due to manufacturing errors of the first connecting member 122, the second connecting member 123, the locking member 125 and the connecting shaft 124, rubber may be further arranged between the locking member 125 and the second connecting member 123, and the rubber is allowed to have a certain compression deformation when the first connecting member 122 and the second connecting member 123 are pressed tightly.

[0053] Please refer to Figure 5 A first face tooth 221 is provided on the surface of the first connecting member 122 facing the second connecting member 123, and a second face tooth (not shown in the figure) is provided on the surface of the second connecting member 123 facing the first connecting member 122. The first face tooth 221 and the second face tooth are used to engage with each other when the first connecting member 122 and the second connecting member 123 are abutted and locked.

[0054] During the process of the rotation locking mechanism 120 locking the connection assembly 110 and the telescopic rod 130, there may be a situation where the supporting member is subjected to a lateral force and has a tendency to fall, thereby causing the entire anti-sway device 100 to be subjected to a large external force. In this case, the telescopic rod 130 is subjected to a large reaction force from the ground. When the reaction force is greater than the friction force between the first connecting member 122 and the second connecting member 123, the locking will fail. Therefore, by adopting the above structure, the force generated between the first face teeth 221 and the second face teeth that are meshed with each other can be used to resist the external force.

[0055] The embodiment of the present invention does not specifically limit the structural form of the connection component 110. For example, a structure in which a sheet of plate is formed into a shape matching the cross-sectional shape and size of the supported member may be adopted, or a structure in which two parts are used to wrap the supported member.

[0056] Optionally, see Figure 2 and Figure 5 The connecting assembly 110 includes a fixed portion 111 , a movable portion 112 and a fastener 117 , the first end 113 of the fixed portion is hinged to the first end 114 of the movable portion, and the second end 115 of the fixed portion is connected to the second end 116 of the movable portion via the fastener 117 .

[0057] It should be noted that both the fixed portion 111 and the movable portion 112 are provided with mounting surfaces that cooperate with the supported member. When the cross-section of the supported member is circular, the corresponding mounting surface is also cylindrical; when the cross-section of the supporting member is square, the corresponding mounting surface is also square.

[0058] By adopting the above structure, the connection component 110 of this embodiment has a simple structure and the anti-sway device 100 of this embodiment is easy to assemble and disassemble. When disassembly is required, the fastener 117 can be removed to disengage the fixed connection between the fixed part 111 and the movable part 112, so that it can be removed from the supported part.

[0059] The embodiment of the present invention does not specifically limit the structural form of the fastener 117. For example, rivets can be selected to connect the fixed part 111 and the movable part 112 together, or bolts and nuts can be used for connection.

[0060] Optionally, see Figure 3 The fastener 117 includes a first bolt 118 and a second nut 119 .

[0061] By adopting this structure, the anti-sway device 100 provided in this embodiment can adapt to the supported parts with different cross-sectional sizes. Specifically, the first bolt 118 passes through the fixed part 111 and the movable part 112 and extends out of the movable part 112. The part extending out of the movable part 112 is connected to the second nut 119. By rotating the second nut 119, the second nut 119 moves on the first bolt 118. The second nut 119 pushes the second end 116 of the movable part toward the second end 115 of the fixed part, thereby reducing the space enclosed between the fixed part 111 and the movable part 112. Therefore, when using the anti-sway device 100, the size of the space enclosed between the fixed part 111 and the movable part 112 can be adjusted according to the cross-sectional size of the supported part. In addition, this detachable connection method allows the anti-sway device 100 of this embodiment to be installed and used on different ladders.

[0062] In addition, the connection component 110 may also adopt the following structure in addition to the above structure: Figure 8 The structure shown: the connecting component 110 includes a fixed part 211 and two movable parts 212 slidably arranged on both sides of the fixed part 211, the two ends of the two movable parts 212 are respectively connected by a second bolt 213, and the first connecting part 122 is arranged on one end of the fixed part 211 away from the movable part 212.

[0063] It should be noted that, first, in order to ensure that the connecting assembly 110 can be connected to the supported part, one end of the two movable parts 212 is slidably connected to the fixed part 211, and after being installed on the supported part, it is connected and fixed by a second bolt 213; the other end of the two movable parts 212 is directly connected by the second bolt 213.

[0064] Second, the embodiment of the present invention does not specifically limit the connection method between the two movable parts 212 and the fixed part 211. For example, a through hole can be opened on the fixed part 211, and the second bolt 213 can be passed through the movable part 212, the fixed part 211 and another movable part 212 in sequence, and then connected to the second bolt 213 with a nut; or a threaded hole can be set on the fixed part 211, and two second bolts 213 can be passed through the two movable parts 212 respectively and connected with the threaded holes. When using the connecting assembly 110, the distance between the two movable parts 212 can be controlled by controlling the depth of the second bolt 213 screwed into the threaded hole, so that the connecting assembly 110 can adapt to the supported parts of different specifications.

[0065] By adopting the above structure, the connection component 110 of this embodiment has a simple structure and the anti-sway device 100 of this embodiment is easy to assemble and disassemble. When disassembly is required, the fastener 117 can be removed to disengage the fixed connection between the fixed part 211 and the movable part 212, so that it can be removed from the supported part.

[0066] Please refer to Figure 6 and Figure 7 The telescopic rod 130 includes an outer rod body 131, an inner rod body 132 sleeved in the outer rod body 131, and a locking body 133 rotatably arranged outside the outer rod body 131. The outer rod body 131 and the locking body 133 are both axially provided with a slide groove 134, the inner rod body 132 is axially provided with a boss 135, the slide groove 134 cooperates with the boss 135, the boss 135 is provided with an external thread 136, the locking body 133 is provided with an internal thread 137, and the external thread 136 cooperates with the internal thread 137.

[0067] It should be noted that, first, the boss 135 of the inner rod body 132 slides in the slide groove 134 of the outer rod body 131 to change the length of the telescopic rod 130. When the length of the telescopic rod 130 needs to be adjusted, the locking body 133 can be rotated so that the slide groove 134 of the locking body 133 corresponds to the position of the boss 135, so that the inner rod body 132 can slide in the slide groove 134; when the length of the telescopic rod 130 is adjusted, the locking body 133 can be rotated so that the part of the locking body 133 provided with the internal thread 137 is matched and connected with the external thread 136 on the boss 135, thereby fixing the relative position between the inner rod body 132 and the outer rod body 131.

[0068] Second, the boss 135 provided on the inner rod body 132 should cooperate with the slide groove 134 on the outer rod body 131 and the internal thread 137 provided on the locking body 133. Therefore, the slide groove 134 on the outer rod body 131 is a slide groove 134 that passes from the inner surface of the outer rod body 131 to the outer surface, and the slide groove 134 on the locking body 133 should pass through the two end surfaces of the inner rod body 132, and not through the inner and outer surfaces of the inner rod body 132, so that the boss 135 passes when the inner rod body 132 slides on the outer rod body 131. The above structure has the advantages of simple structure, convenient adjustment of the length of the telescopic rod 130, and reliable connection.

[0069] Please refer to Figure 1 The anti-sway device 100 provided in the embodiment of the present invention also includes an elastic member 140, which is sleeved in the outer rod body 131. The two ends of the elastic member 140 are respectively connected to the rotation locking mechanism 120 and the inner rod body 132. The elastic member 140 is used to apply elastic force to the inner rod body 132, so that the inner rod body 132 has a tendency to move in a direction away from the outer rod body 131.

[0070] In this way, when the length of the telescopic rod 130 needs to be extended, the elastic force of the elastic member 140 can be used to extend the telescopic rod 130, and the telescopic rod 130 can be locked after being extended to the required length to fix the length of the telescopic rod 130. This makes the extension of the length of the telescopic rod 130 more convenient and labor-saving.

[0071] Please refer to Figure 5 A convex portion 223 is provided on the outer edge of the first connecting member 122 , and the convex portion 223 faces the second connecting member 123 , so as to limit the angle between the first connecting member 122 and the second connecting member 123 .

[0072] Since the anti-sway device 100 of the present embodiment has a certain angle with the supported member during operation, the telescopic rod 130 is usually oblique to the ground. When the telescopic rod 130 is subjected to a reaction force from the ground, the reaction force will cause the angle between the telescopic rod 130 and the connecting component 110 to increase. By adopting the above structure, the angle between the telescopic rod 130 and the connecting component 110 is limited to a certain range. Therefore, when the telescopic rod 130 is subjected to a reaction force, the rotation locking mechanism 120 loses its locking function, and the angle between the telescopic rod 130 and the connecting component 110 continues to increase, eventually causing the supported member to topple over. This increases the safety of the anti-sway device 100.

[0073] Please refer to Figure 1 An anti-slip pad 150 is provided on one end of the telescopic rod 130 away from the rotation locking mechanism 120 .

[0074] In this way, the friction between the anti-sway device 100 of this embodiment and the ground can be increased, especially when the ground is relatively smooth, and the situation in which the anti-sway device 100 is unstable due to slipping when subjected to external force, which is caused by the friction between the anti-sway device 100 and the ground being too small, can be reduced.

[0075] It should be noted that the anti-sway device 100 of the above-mentioned structural form is not limited to use in ladders, and the same structure can also be used when it is necessary to stabilize other long poles.

[0076] Another aspect of the embodiments of the present invention provides a ladder, comprising: any one of the anti-sway devices 100 described above. The ladder has the same structure and beneficial effects as the anti-sway device 100 in the aforementioned embodiments. Since the structure and beneficial effects of the anti-sway device 100 have been described in detail in the aforementioned embodiments, they will not be repeated here.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-sway device, characterized in that: include: A connecting assembly, a rotation locking mechanism and a telescopic rod, wherein the rotation locking mechanism is connected to the connecting assembly and the telescopic rod respectively, and is used to adjust the angle between the connecting assembly and the telescopic rod and lock the connecting assembly; the telescopic rod comprises an outer rod body, an inner rod body sleeved in the outer rod body, and a locking body rotatably arranged outside the outer rod body, wherein the outer rod body and the locking body are both provided with a slide groove along the axial direction, the inner rod body is provided with a boss along the axial direction, the slide groove matches with the boss, the boss is provided with an external thread, the locking body is provided with an internal thread, and the external thread matches with the internal thread; The rotation locking mechanism comprises a connecting shaft and a stopper, a first connecting member, a second connecting member and a locking member which are sequentially sleeved on the connecting shaft, the connecting shaft is fixedly connected to the stopper, the locking member is movably connected to the connecting shaft, the first connecting member is arranged on the connecting assembly, the second connecting member is arranged on the telescopic rod, and the locking member is used to provide a force for the second connecting member to make the stopper, the first connecting member and the second connecting member abut against each other and lock; a rubber is arranged between the locking member and the second connecting member, and when the first connecting member and the second connecting member are pressed tightly, the rubber is compressed and deformed; The connecting component includes a fixed part, a movable part and a fastener, the first end of the fixed part is hinged to the first end of the movable part, and the second end of the fixed part is connected to the second end of the movable part by a fastener; or, the connecting component includes a fixed part and two movable parts slidably arranged on both sides of the fixed part, the two ends of the two movable parts are respectively connected by a second bolt, and the first connecting part is arranged on an end of the fixed part away from the movable part.

2. The anti-sway device according to claim 1, characterized in that: The connecting shaft is a screw rod, the locking member is a first nut, and the first nut is rotated and moved on the screw rod so that the stopper, the first connecting member and the second connecting member are abutted and locked.

3. The anti-sway device according to claim 1, characterized in that: The locking member includes a locking shaft and a locking block. The locking shaft is vertically inserted into one end of the connecting shaft away from the stop portion. The locking block is rotatably arranged on the locking shaft. The locking member has a mating surface, which is an eccentric arc surface. The locking block is rotated to make the stop portion, the first connecting member and the second connecting member abut and lock.

4. The anti-sway device according to claim 1, characterized in that: The surface of the first connecting member facing the second connecting member is provided with first face teeth, and the surface of the second connecting member facing the first connecting member is provided with second face teeth. The first face teeth and the second face teeth are used to mesh with each other when the first connecting member and the second connecting member are abutted and locked.

5. The anti-sway device according to claim 1, characterized in that: The fastener includes a first bolt and a second nut.

6. The anti-sway device according to claim 1, characterized in that: It also includes an elastic member, which is sleeved inside the outer rod body, and the two ends of the elastic member are respectively connected to the rotation locking mechanism and the inner rod body, and the elastic member is used to apply elastic force to the inner rod body so that the inner rod body has a tendency to move in a direction away from the outer rod body.

7. The anti-sway device according to claim 1, characterized in that: A convex portion is arranged on the outer edge of the first connecting member, and the convex portion faces the second connecting member, and is used to limit an angle between the connecting assembly and the telescopic rod.

8. The anti-sway device according to claim 1, characterized in that: An anti-slip pad is arranged on one end of the telescopic rod away from the rotation locking mechanism.

9. A ladder, characterized in that: The invention comprises an anti-sway device as claimed in any one of claims 1 to 8.

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