Telescopic rod, telescopic supporting leg and lifting platform

Abstract

The telescopic rod comprises an inner rod and a sleeve arranged on the inner rod in a sleeved mode, the inner rod and the sleeve can be switched between a folded state and an extending state in a telescopic mode, a first limiting structure is arranged between the inner rod and the sleeve, and a second limiting structure is arranged between the inner rod and the sleeve. The first limiting structure is used for limiting the inner rod and the sleeve to be in an extending state or a retracting state, and an adjusting structure used for adjusting the length of the inner rod is further arranged on the inner rod. The extension length of the telescopic rod can be adjusted through the inner rod and the sleeve, it is ensured that the inner rod cannot automatically retract in the using process through the first limiting structure, the structural strength during supporting is ensured, meanwhile, the inner rod is further provided with the adjusting structure for adjusting the length, the overall extensible length of the telescopic rod can be increased, and when the inner rod is folded, the telescopic rod is not prone to deformation. And the adjusting structure is retracted into the sleeve together, so that the structure of the telescopic rod is more compact, the compactness of the structure is improved, and the structures of the telescopic supporting leg and the lifting platform applying the telescopic rod are more compact.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting devices, in particular to a telescopic rod, a telescopic supporting leg and a lifting platform. Background Art

[0002] Some lifting engineering machinery has certain requirements on the stability of the entire equipment when lifting heavy materials or lifting materials to a height that is too high. In order to prevent the equipment from tipping over and ensure the safety of surrounding objects and personnel, a common solution is to use outriggers to increase the supporting area between the equipment and the ground, reduce the burden on the tires, and improve the vehicle's anti-overturning ability.

[0003] However, traditional legs are generally retracted and opened by pulling the legs through gas springs, and the position of the legs needs to be fixed by a locking structure to fix the legs relative to the brackets for installing the legs. This traditional structure requires a special bracket for installing the legs and a structure for fixing the state of the legs on the brackets, which makes the structure of the entire equipment appear bloated and occupies a large space. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a telescopic rod, a telescopic leg and a lifting platform. The telescopic rod can adjust its length in multiple stages, making the structure of the telescopic rod more compact, and the telescopic leg can be controlled to open or retract through the telescopic rod by adjusting the length of the telescopic rod itself. The equipment using the telescopic leg can effectively reduce the space occupied by the equipment.

[0005] According to a first aspect of the present application, a telescopic rod is provided, comprising:

[0006] The inner rod and the sleeve are sleeved on the inner rod, and the inner rod and the sleeve can be telescopically switched between a retracted state and an extended state.

[0007] A first limiting structure is provided between the inner rod and the sleeve, and the first limiting structure is used to limit the inner rod and the sleeve to an extended state or a retracted state.

[0008] The inner rod is also provided with an adjusting structure for adjusting the length thereof.

[0009] The telescopic rod of the utility model can adjust its extended length by utilizing the inner rod and the sleeve, and utilizes the first limiting structure to limit the state between the inner rod and the sleeve to the extended state or the retracted state, which can ensure that they will not automatically retract during use, thereby ensuring the structural strength during support. At the same time, the inner rod itself is also provided with an adjustment structure for adjusting the length, thereby further increasing the overall extendable length of the telescopic rod. When the inner rod is retracted into the sleeve, the adjustment structure on the inner rod can be retracted into the sleeve together, making the overall structure more compact, thereby improving the compactness of the structure.

[0010] In some embodiments, the inner rod includes a first rod body and a second rod body that are coaxially arranged, and the adjustment structure is arranged between the first rod body and the second rod body to adjust the distance between the first rod body and the second rod body.

[0011] Therefore, through such an arrangement, the distance between the first rod body and the second rod body can be adjusted by using the adjustment structure, thereby adjusting the length of the inner rod and realizing secondary adjustment of the length.

[0012] In some embodiments, the adjustment structure includes a connecting member, one end of which is threadedly connected to the first rod body, and the other end of which is threadedly connected to the second rod body, and the threads at both ends of the connecting member are arranged to be opposite to each other.

[0013] Therefore, through such a setting, the distance between the first rod body and the second rod body can be adjusted by means of a threaded connection. At the same time, the threaded connection can retract the threaded end into the internal threaded section when there is no need to extend the length of the inner rod, thereby effectively reducing the space it occupies and making the overall structure more compact.

[0014] In some embodiments, the first rod body and the second rod body are both provided with internal thread structures, and the connecting member is provided as a threaded rod, and the thread directions at both ends thereof are opposite to each other.

[0015] Therefore, through such a setting, a threaded rod with bidirectional different thread directions can be threadedly connected with the first rod body and the second rod body, so that when the threaded rod is rotated, the first rod body and the second rod body can be moved closer to or farther away from each other, thereby adjusting the length of the inner rod.

[0016] In some embodiments, the connecting member is provided with an operating structure for facilitating the rotation of the connecting member.

[0017] Therefore, by configuring in this way, the operation structure can improve the convenience of the user in operating the connector.

[0018] In some embodiments, a second limiting structure for limiting relative rotation between the connecting member and the first rod body and between the connecting member and the second rod body is provided.

[0019] Therefore, through such a setting, the second limiting structure can be used to limit the length adjustment of the inner rod, thereby ensuring that it will not automatically retract during use, ensuring the structural stability of the length adjustment of the inner rod, and improving the structural strength of the overall telescopic rod when supporting.

[0020] In some embodiments, the first limiting structure includes a first positioning hole provided on the sleeve, a second positioning hole provided on the inner rod, and a positioning pin passing through the first positioning hole and the second positioning hole.

[0021] Therefore, through such an arrangement, the positioning pin can be used to limit the relative position between the inner rod and the sleeve to prevent the inner rod from retracting into the sleeve during use. At the same time, when the inner rod and the sleeve are both cylindrical structures, the first limiting structure can also limit the inner rod and the sleeve from relative rotation.

[0022] In some embodiments, two groups of the second positioning holes are provided on the inner rod.

[0023] Therefore, through such an arrangement, the two groups of second positioning holes can be used to correspond to the extended state or retracted state between the inner rod and the sleeve respectively, so that in the extended state, the positioning pin can be used to prevent the inner rod from retracting into the sleeve, and in the retracted state, the positioning pin can be used to prevent the inner rod from extending out of the sleeve.

[0024] According to a second aspect of the present application, a telescopic leg is provided, comprising a leg body and the telescopic rod described in the first aspect, wherein the leg body is hinged to one end of the telescopic rod, and one end of the leg body is hinged to a device for installing the telescopic leg, and the other end of the telescopic rod is hinged to the device for installing the telescopic leg.

[0025] The telescopic leg of the utility model is controlled by the telescopic rod of the first aspect, one end of the leg body is hinged to the device, and one end of the telescopic rod is hinged to the device, and the other end is hinged to the leg body, so that when the telescopic rod is extended, the leg body will gradually open under the support of the telescopic rod, and when the telescopic rod is fixed in length, the leg body can be fixed in the corresponding position. The overall structure is simple and compact, and there is no need to set up an additional bracket for installing the leg body and set an additional limit structure on the bracket to limit the opening angle of the leg body, thereby reducing the occupied space of the overall telescopic leg structure.

[0026] According to the third aspect of the present application, a lifting platform is provided, comprising a lifting platform body and the telescopic legs described in the second aspect, wherein one end of the leg body is hinged to the lifting platform body, and the other end of the telescopic rod is hinged to the lifting platform body.

[0027] The lifting platform of the utility model is installed with the telescopic legs of the second aspect mentioned above, and thus it does not need to additionally provide a bracket for installing the leg body and an additional limiting structure on the bracket for limiting the opening angle of the leg body, thereby reducing the space occupied by the overall telescopic leg structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of a telescopic rod according to one embodiment of the utility model;

[0029] Figure 2This is a schematic diagram of the internal structure of the telescopic rod in the extended state according to one embodiment of the utility model;

[0030] Figure 3 This is a schematic diagram of the internal structure of the telescopic rod in a retracted state according to one embodiment of the utility model;

[0031] Figure 4 This is a schematic structural diagram of the telescopic legs in an open state according to one embodiment of the utility model;

[0032] Figure 5 This is a schematic structural diagram of the retractable legs in a folded state according to one embodiment of the utility model;

[0033] Figure 6 This is a schematic diagram of the overall structure of a lifting platform according to one embodiment of the utility model;

[0034] Explanation of the accompanying drawings: 1. sleeve; 2. inner rod; 21. first rod body; 22. second rod body; 23. internal threaded sleeve; 3. connecting piece; 31. operating structure; 41. first positioning hole; 42. second positioning hole; 43. positioning pin; 51. first limiting through hole; 52. second limiting through hole; 6. support leg body; 7. telescopic rod; 8. lifting platform body. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0036] In the description of the present application, it should be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like are used to indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The features defined as "first" and "second" are used to distinguish the feature names, rather than having special meanings. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include" and "comprise" include not only those elements, but also other elements that are not explicitly listed, or also include elements inherent to such processes, methods, articles or equipment. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or equipment that includes the elements. The terms used in this article are generally commonly used terms by those skilled in the art. If they are inconsistent with commonly used terms, the terms in this article shall prevail.

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0041] Figure 1 The overall structure of the telescopic rod of one embodiment of the utility model is schematically shown. Figure 1As shown, the telescopic rod of the utility model comprises an inner rod 2 and a sleeve 1 sleeved on the inner rod 2. Among them, a first limiting structure is provided between the inner rod 2 and the sleeve 1, and the first limiting structure is used to limit the inner rod 2 and the sleeve 1 in an extended state or a retracted state. When the inner rod 2 and the sleeve 1 are in an extended state, most of the inner rod 2 is exposed outside the sleeve 1, and at least a part of the inner rod 2 is still in the sleeve 1 or connected to the sleeve 1, so as to extend the overall length of the telescopic rod, and when the inner rod 2 and the sleeve 1 are in a retracted state, the entire inner rod 2 is retracted in the sleeve 1, so as to shorten the overall length of the telescopic rod. The shapes of the inner rod 2 and the sleeve 1 can be arbitrarily set, such as polygonal or cylindrical shapes, which will not affect the relative movement between the inner rod 2 and the sleeve 1. At the same time, an adjustment structure for adjusting the length of the inner rod 2 itself is also provided on the inner rod 2. The adjustment structure is used to adjust the length of the inner rod 2 itself, so that after the inner rod 2 is extended in the sleeve 1, the adjustment structure can be used to further increase the length of the inner rod 2 itself when the inner rod 2 and the sleeve 1 are in the extended state, so that the length of the entire telescopic rod can be extended a second time.

[0042] In some possible implementations, the adjustment structure of the inner rod 2 can be realized by setting the inner rod 2 to be a telescopic structure composed of the outer sleeve 1 and the inner sleeve rod, so that the inner rod 2 itself can be adjusted in length, so that the length of the overall telescopic rod can be extended twice. In other possible implementations, the inner rod 2 can be divided into a multi-section structure, including a first rod body 21 and a second rod body 22 coaxially arranged, and the first rod body 21 and the second rod body 22 are connected by an adjustment structure, and the adjustment structure is used to adjust the distance between the first rod body 21 and the second rod body 22, so as to achieve the effect of conditioning the length of the inner rod 2 itself. In this embodiment, the adjustment structure may specifically include a connecting member 3, the connecting member 3 is arranged between the first rod body 21 and the second rod body 22, and the connecting member 3 and the first rod body 21 are connected by a threaded connection, and the connecting member 3 and the second rod body 22 are also connected by a threaded connection, and the thread direction of the connection between the connecting member 3 and the first rod body 21 and the thread direction of the connection between the connecting member 3 and the second rod body 22 are opposite to each other, so that the first rod body 21 and the second rod body 22 can be moved closer or farther from each other by relatively rotating the connecting member 3 and the first rod body 21 and the second rod body 22, so that the length of the entire inner rod 2 can be adjusted. Among them, the threaded connection between the connecting member 3 and the first rod body 21 and the second rod body 22 can be realized by setting one of them as a threaded rod and the other as an internal threaded sleeve 23. For example, the first rod body 21 and the second rod body 22 can be both set as threaded rods, and the connecting member 3 can be set as the corresponding internal thread sleeve 23. For another example, one of the first rod body 21 and the second rod body 22 can be set as a threaded rod, and the other can be provided with an internal thread sleeve 23, and the connecting member 3 can be set as a structure with a corresponding internal thread sleeve 23 at one end and a threaded rod at the other end. For another example, the first rod body 21 and the second rod body 22 can be provided with an internal thread sleeve 23, and the connecting member 3 can be set as a threaded rod with opposite thread directions at both ends. It should be noted that, since the inner rod 2 needs to be able to be completely received in the sleeve 1, the circumferential cross-sectional dimensions between the first rod body 21, the second rod body 22 and the connecting member 3 should all be smaller than the circumferential cross-sectional inner diameter dimension of the sleeve 1, and at the same time, when the inner rod 2 is shortened to at least the shortest, it should not be longer than the length of the sleeve 1. At this time, in this embodiment, since the connecting member 3 is operated, the first rod body 21 and the second rod body 22 need to be set to be unable to rotate synchronously with the connecting member 3, so as to avoid that when the connecting member 3 is operated to rotate, the first rod body 21 and / or the second rod body 22 rotates together with the connecting member 3, thereby making it impossible to adjust the overall length of the inner rod 2.

[0043] When the telescopic rod of the utility model is in use, generally both ends are hinged or fixedly connected to other structures, so that one of the first rod body 21 or the second rod body 22 can be hinged or fixedly connected to other structures to achieve non-synchronous rotation with the connecting member 3. When the inner rod 2 and the sleeve 1 are both polygonal structures, through the nesting restriction of the polygonal structure, the other of the first rod body 21 or the second rod body 22 can also be restricted by the sleeve 1 to achieve non-synchronous rotation with the connecting member 3. When both the inner rod 2 and the sleeve 1 are cylindrical structures, an additional structure is required to limit the other of the first rod body 21 or the second rod body 22 to not rotate synchronously with the connecting member 3. This structure can be achieved by a first limiting structure between the inner rod 2 and the sleeve 1, or by adding other commonly used structures in the prior art, such as a convex strip (bump) on the inner rod 2 and a groove on the inner side of the sleeve 1 to limit the relative axial rotation between the inner rod 2 and the sleeve 1, so that the other of the first rod body 21 or the second rod body 22 can also be restricted by the sleeve 1 to not rotate synchronously with the connecting member 3.

[0044] Since the connecting member 3 needs to be rotated by operation to adjust the length of the inner rod 2, an operating structure 31 for assisting the operator to rotate the connecting member 3 can be provided on the connecting member 3. In some possible embodiments, the operating structure 31 can be provided as a structure such as an anti-slip pattern or a pull rod on the surface of the connecting member 3. In other possible embodiments, the operating structure 31 can also be provided as a perforation that penetrates the connecting member 3. By providing the operating structure 31 as a perforation, the operator can rotate the connecting member 3 by inserting an operating rod when using it, and when the connecting member 3 does not need to be rotated, the inserted operating rod can be removed, thereby reducing redundant structures. Among them, the operating rod can be an ordinary long rod.

[0045] In order to improve the stability of the telescopic rod after extension, in the above embodiment, a second limiting structure for limiting the relative rotation of the two can be provided between the first rod body 21 and the connecting member 3, and between the second rod body 22 and the connecting member 3. In some possible embodiments, the second limiting structure can be provided as a structure such as a card block groove, for example, a card block is provided on the first rod body 21 and the second rod body 22, and a groove is provided on the connecting member 3, so that when the inner rod 2 is extended to the longest length, the card block can be inserted into the groove and cooperate with the groove to limit the relative rotation between the three, and when the restriction needs to be released, the card block can be disengaged from the groove by pressing the card block, so that the three can continue to rotate relative to each other. In some other possible embodiments, a first limit hole 51 may be provided on the first rod body 21 and the second rod body 22, and a second limit hole 52 corresponding to the first limit hole 51 may be provided on the connecting member 3. Then, when the connecting member 3 is rotated to a position where the first limit hole 51 and the second limit hole 52 are relative to each other, the relative rotation between the three can be limited by inserting a pin that passes through the first limit hole 51 and the second limit hole 52 at the same time. When the restriction needs to be lifted, the pin can be directly removed so that the three can continue to rotate relative to each other.

[0046] For example, refer to Figure 2 and Figure 3 As shown, in Figure 2 and Figure 3 In the embodiment shown, the first rod body 21 and the second rod body 22 are both configured as cylindrical structures, and the connecting member 3 is configured as a corresponding cylindrical structure. The first rod body 21 is arranged on a side away from the sleeve 1, and the second rod body 22 is arranged on a side close to the sleeve 1. An internal thread sleeve 23 is installed on the opposite ends of the first rod body 21 and the second rod body 22. The internal thread sleeve 23 is fixedly connected to the first rod body 21 and the second rod body 22. The two ends of the connecting member 3 are respectively provided with threads in different directions. A through hole is provided in the middle of the connecting member 3 for the user to operate the rotation thereof. The user can insert the operating rod into the through hole, so as to more conveniently operate the rotation of the connecting member 3. A first limiting through hole 51 is respectively provided on the first rod body 21 and the second rod body 22, and a second limiting through hole 52 is provided on the connecting member 3, so that the relative rotation between the first rod body 21, the second rod body 22 and the connecting member 3 can be limited by inserting a pin that passes through the first limiting through hole 51 and the second limiting through hole 52 at the same time.

[0047] As for the first limiting structure between the inner rod 2 and the sleeve 1, in some possible embodiments, the first limiting structure is similar to the second limiting structure, and can also be set as a structure of a block and a groove. For example, a block is set on the inner rod 2, and a groove is set on the sleeve 1, so that when the inner rod 2 and the sleeve 1 are in the extended state, one of the blocks on the inner rod 2 can be inserted into the groove and cooperate with the groove to limit the inner rod 2 from being retracted into the sleeve 1, and when the inner rod 2 and the sleeve 1 are in the retracted state, another block on the inner rod 2 can be inserted into the groove and cooperate with the groove to limit the inner rod 2 from being extended out of the sleeve 1. In combination with the above-mentioned embodiments of the inner rod 2 structure, the block corresponding to the extended state can be set on the second rod body 22, and the block corresponding to the retracted state can be set on the first rod body 21. In some other possible embodiments, the first limiting structure can also be set to include a first positioning hole 41 set on the sleeve 1, a second positioning hole 42 set on the second inner rod 2, and a positioning pin 43 passing through the first positioning hole 41 and the second positioning hole 42. Among them, the second positioning hole 42 corresponds to the extended state and the retracted state, and two groups can be provided. Therefore, when the inner rod 2 and the sleeve 1 are in the extended state, the second positioning hole 42 on the inner rod 2 will correspond to the first positioning hole 41 on the sleeve 1, and at this time, the positioning pin 43 can be passed through the first positioning hole 41 and the second positioning hole 42 at the same time to limit the inner rod 2 from being retracted into the sleeve 1, and when the inner rod 2 and the sleeve 1 are in the retracted state, another second positioning hole 42 on the inner rod 2 will correspond to the first positioning hole 41 on the sleeve 1, and at this time, the positioning pin 43 can be passed through the first positioning hole 41 and the second positioning hole 42 at the same time to limit the inner rod 2 from extending out of the sleeve 1. It can be understood that the first limiting structure of this embodiment can also effectively limit the relative rotation between the inner rod 2 (the second rod body 22) and the sleeve 1, so as to cooperate with the adjustment structure of the inner rod 2 itself.

[0048] For example, refer to Figure 2 and Figure 3 As shown in Figure Figure 2 and Figure 3In the illustrated embodiment, the inner rod 2 includes a first rod body 21 and a second rod body 22, wherein the first rod body 21 is arranged on a side away from the sleeve 1, and the second rod body 22 is arranged on a side close to the sleeve 1, and the first rod body 21 and the second rod body 22 are arranged at opposite ends thereof, and the first rod body 21 and the second rod body 22 are both provided with a second positioning hole 42, and the second positioning hole 42 is a through hole penetrating the first rod body 21 and the second rod body 22. The sleeve 1 is provided with a first positioning hole 41, and the first positioning hole 41 is similarly arranged as a through hole penetrating the sleeve 1. When the inner rod 2 and the sleeve 1 are in the extended state, the second positioning hole 42 on the second rod body 22 will correspond to the first positioning hole 41 on the sleeve 1. At this time, the positioning pin 43 can be passed through the first positioning hole 41 and the second positioning hole 42 on the second rod body 22 at the same time to limit the inner rod 2 from being retracted into the sleeve 1; when the inner rod 2 and the sleeve 1 are in the retracted state, the second positioning hole 42 on the first rod body 21 will correspond to the first positioning hole 41 on the sleeve 1. At this time, the positioning pin 43 can be passed through the first positioning hole 41 and the second positioning hole 42 on the first rod body 21 at the same time to limit the inner rod 2 from extending out of the sleeve 1.

[0049] When the telescopic rod of the utility model is used, the positioning pin 43 needs to be taken out first to extend the inner rod 2 to the extended state, and then the positioning pin 43 is inserted into the first positioning hole 41 and the second positioning hole 42 on the second rod body 22 to limit the inner rod 2 and the sleeve 1 to the extended state, and then the operating rod is inserted into the through hole of the connecting member 3 to rotate the connecting member 3 so that the first rod body 21 and the second rod body 22 are separated from each other, so as to achieve the extension of the telescopic rod. When the telescopic rod needs to be retracted, it is only necessary to first insert the operating rod into the through hole of the connecting member 3 to rotate the connecting member 3 so that the first rod body 21 and the second rod body 22 are close to each other, and then the positioning pin 43 is taken out to retract the inner rod 2 to the retracted state, and then the positioning pin 43 is inserted into the first positioning hole 41 and the second positioning hole 42 on the first rod body 21 to limit the inner rod 2 and the sleeve 1 to the retracted state.

[0050] The telescopic rod of the utility model can adjust its extended length by using the inner rod 2 and the sleeve 1, and uses the first limiting structure to limit the state between the inner rod 2 and the sleeve 1 to the extended state or the retracted state, which can ensure that it will not automatically retract during use, thereby ensuring the structural strength during support. At the same time, the inner rod 2 itself is also provided with an adjustment structure for adjusting the length, thereby further increasing the overall extendable length of the telescopic rod. When the inner rod 2 is retracted into the sleeve 1, the adjustment structure on the inner rod 2 can be retracted into the sleeve 1 together, making the overall structure more compact, thereby improving the compactness of the structure.

[0051] Figure 4 and Figure 5 The overall structure of the telescopic legs of an embodiment of the utility model is schematically shown. Figure 4 and Figure 5 As shown, the telescopic leg of the utility model includes the telescopic rod 7 and the leg body 6 in the above embodiment. Among them, one end of the leg body 6 is provided with a hinge structure, which is hinged to the equipment used to install the telescopic leg, and both ends of the telescopic rod 7 are provided with hinge structures, one end of which is also hinged to the equipment used to install the telescopic leg, and the other end is hinged to the leg body 6.

[0052] When the telescopic legs of the utility model are used, the leg body 6 can be opened and folded only by adjusting the length of the telescopic rod 7 and fixing it. Figure 4 and Figure 5 As shown, when the telescopic legs need to be opened, it is only necessary to adjust the telescopic rod 7 to extend it, and then the leg body 6 will rotate around the end hinged to the device under the support of the telescopic rod 7 to gradually open, and when the leg body 6 is against the ground, it is only necessary to fix the length of the telescopic rod 7 to achieve the opening of the leg body 6. When the leg body 6 needs to be retracted, it is only necessary to adjust the telescopic rod 7 to shorten it, and then the leg body 6 will rotate around the end hinged to the device under the pulling action of the telescopic rod 7 to gradually retract, and when the telescopic rod 7 is completely retracted and fixed, the leg body 6 has completed the retraction.

[0053] The telescopic leg of the utility model is controlled by the telescopic rod 7 of the first aspect, one end of the leg body 6 is hinged to the device, and one end of the telescopic rod 7 is hinged to the leg body 6, and the other end is hinged to the device, so that when the telescopic rod 7 is extended, the leg body 6 will gradually open under the support of the telescopic rod 7, and when the telescopic rod 7 is fixed in length, the leg body 6 can be fixed in the corresponding position. The overall structure is simple and compact, and there is no need to set up an additional bracket for installing the leg body 6 and set an additional limit structure on the bracket to limit the opening angle of the leg body 6, thereby reducing the occupied space of the overall telescopic leg structure.

[0054] Figure 6 The lifting platform of one embodiment of the utility model is schematically shown. Figure 6 As shown, the lifting platform includes a lifting platform body 8 and the telescopic legs of the above embodiment, wherein one end of the leg body 6 of the telescopic legs is hinged to the lifting platform body 8, and the other end of the telescopic rod 7 is hinged to the lifting platform body 8.

[0055] The lifting platform of the utility model is installed with the telescopic legs of the second aspect mentioned above, so it is unnecessary to additionally provide a bracket for installing the leg body 6 and to provide an additional limiting structure on the bracket for limiting the opening angle of the leg body 6, thereby reducing the space occupied by the overall telescopic leg structure.

[0056] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A telescopic rod, characterized in that: include: The inner rod and the sleeve are sleeved on the inner rod, and the inner rod and the sleeve can be telescopically switched between a retracted state and an extended state. A first limiting structure is provided between the inner rod and the sleeve, and the first limiting structure is used to limit the inner rod and the sleeve to an extended state or a retracted state. The inner rod is also provided with an adjusting structure for adjusting the length thereof.

2. The telescopic rod according to claim 1, characterized in that: The inner rod comprises a first rod body and a second rod body which are coaxially arranged. The adjustment structure is arranged between the first rod body and the second rod body to adjust the distance between the first rod body and the second rod body.

3. The telescopic rod according to claim 2, characterized in that: The adjustment structure comprises a connecting piece, one end of which is threadedly connected to the first rod body, and the other end of which is threadedly connected to the second rod body, and the threads at both ends of the connecting piece are arranged to be opposite to each other.

4. The telescopic rod according to claim 3, characterized in that: The first rod body and the second rod body are both provided with internal thread structures, and the connecting member is provided as a threaded rod, and the thread directions at both ends thereof are opposite to each other.

5. The telescopic rod according to claim 3, characterized in that: The connecting piece is provided with an operating structure for facilitating the rotation of the connecting piece.

6. The telescopic rod according to claim 3, characterized in that: A second limiting structure for limiting the relative rotation between the connecting member and the first rod body and between the connecting member and the second rod body is provided.

7. The telescopic rod according to any one of claims 1 to 6, characterized in that: The first limiting structure includes a first positioning hole arranged on the sleeve, a second positioning hole arranged on the inner rod, and a positioning pin passing through the first positioning hole and the second positioning hole.

8. The telescopic rod according to claim 7, characterized in that: The second positioning holes are arranged in two groups on the inner rod.

9. A telescopic leg, characterized in that: It comprises a leg body and the telescopic rod as claimed in any one of claims 1 to 8, wherein the leg body is hinged to one end of the telescopic rod, and one end of the leg body is hinged to a device for installing the telescopic leg, and the other end of the telescopic rod is hinged to the device for installing the telescopic leg.

10. A lifting platform, characterized in that: It comprises a lifting platform body and the telescopic legs as claimed in claim 9, one end of the leg body is hinged to the lifting platform body, and the other end of the telescopic rod is hinged to the lifting platform body.

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