Telescopic support

Abstract

The utility model provides a telescopic support, and relates to the technical field of supports. The telescopic bracket comprises a bracket main body, at least one connecting plate, a telescopic rod, a limiting block, a limiting plate and a cover plate; the support body is provided with a sliding groove, at least one connecting hole, a limiting groove and a limiting plate mounting groove, the support body is in a long strip shape, the connecting hole is close to one end of the support body, the limiting groove is close to the other end of the support body, and the sliding groove is adjacent to and communicated with the limiting groove. The connecting plate is provided with a mounting shaft, and the mounting shaft is rotationally connected to the connecting hole; the telescopic rod is located in the sliding groove and provided with a notch, and the side, provided with the notch, of the telescopic rod is close to the limiting groove. The limiting block is provided with a side protrusion and located at the first position or the second position of the limiting groove, and therefore the telescopic rod is limited. The telescopic support is matched with the reserved hole in the back face of the supported object, high-adaptability supporting is achieved, and telescopic adjustment and rotation adjustment are convenient in the process of supporting the supported object.

Description

Technical Field

[0001] The utility model relates to the technical field of brackets, in particular to a retractable bracket. Background Art

[0002] When supporting objects such as monitors, photo frames, electronic photo frames, tablets, mobile phones, computers, and televisions, corresponding brackets are usually used for support. If a user needs to support multiple objects, it is cumbersome to find corresponding brackets.

[0003] During the support process, the adjustment of the support angle usually requires the disassembly of the original support, which is cumbersome.

[0004] Existing supports with telescopic functions often shrink automatically during the support process, and the support stability is poor;

[0005] The existing bracket with telescopic function is not convenient to operate when performing telescopic adjustment. Utility Model Content

[0006] The purpose of the utility model is to provide a retractable bracket, and the utility model provides the following technical solutions:

[0007] The utility model provides a retractable bracket, characterized in that it comprises a bracket body, at least one connecting plate, a telescopic rod, a limiting block, a limiting plate, and a cover plate;

[0008] The bracket body has a slide groove, at least one connecting hole, a limiting groove, and a limiting plate mounting groove. The bracket body is in the shape of an elongated strip. The connecting hole is located near one end of the bracket body, the limiting groove is located near the other end of the bracket body, and the slide groove is adjacent to and connected to the limiting groove.

[0009] The connecting plate has a mounting shaft, and the mounting shaft is rotatably connected to the connecting hole;

[0010] The telescopic rod is located in the sliding groove, the telescopic rod has a notch, and a side of the telescopic rod having the notch is close to the limiting groove;

[0011] The limit block has a side protrusion, and the limit block is located at the first position or the second position of the limit slot; wherein, when the limit block is located at the first position, the telescopic rod can slide in the slide slot; when the limit block is located at the second position, the side protrusion is stuck in the notch of the telescopic rod so that the telescopic rod cannot slide in the slide slot;

[0012] The limiting plate is in the limiting plate installation groove, the limiting plate has a limiting protrusion, and the telescopic rod has a guide rail groove; when the telescopic rod slides in the slide groove, the limiting protrusion is located in the guide rail groove; when the limiting protrusion contacts one end of the guide rail groove, the limiting protrusion limits the telescopic rod from sliding toward the other end of the guide rail groove;

[0013] The cover plate covers the slide groove, the limiting groove and the limiting plate installation groove.

[0014] Further, the limit block has at least one spring hole;

[0015] For each of the spring holes, a spring is arranged in the spring hole;

[0016] The spring limits the limit block to the second position; wherein, when the limit block transmits force to the spring so that the spring contracts, the limit block is located at the first position when the spring contracts.

[0017] Further, the limit block has an upper protrusion;

[0018] The upper protrusion passes through a cover plate hole pre-arranged on the cover plate, wherein when the cover plate is covered and installed on the limiting groove, the position of the cover plate hole is located on the limiting groove;

[0019] When the upper protrusion is subjected to a force in a first direction, the limit block transfers the force to the spring to compress the spring, wherein the first direction is parallel to the cover plate and points from a side of the upper protrusion away from the spring to a side of the upper protrusion close to the spring.

[0020] Further, one side of the telescopic rod has at least one notch;

[0021] The telescopic rod is made of a hard material, and the notch has at least two planes formed by the hard material, which are referred to as notch surfaces, wherein the hard material includes at least one of metal or hard plastic;

[0022] On one side of the telescopic rod having the notch, there is a portion outside the notch, wherein the portion outside the notch is formed of a hard material to form a discontinuous plane, which is recorded as a reference plane.

[0023] Further, for each of the notches, there are two corresponding notch surfaces, the two notch surfaces include a first notch surface and a second notch surface; wherein the first notch surface is a plane on the telescopic rod close to the connecting hole of the bracket body, and the second notch surface is a surface in the corresponding notch opposite to the first notch surface;

[0024] The angle formed by the first notch surface and the hard material on the reference surface is greater than 90 degrees and not greater than 180 degrees;

[0025] The angle formed by the second notch surface and the hard material on the reference surface is no greater than 90 degrees.

[0026] Further, the side protrusion of the limit block has a first limit surface and a second limit surface, wherein, when the limit block is placed in the limit groove, the first limit surface is a plane on the side protrusion close to the connecting hole of the bracket body, and the second limit surface is a plane on the side protrusion away from the connecting hole of the bracket body;

[0027] When the limiting block is located at the second position, the side protrusion is inserted into one of all the notches, wherein the first limiting surface is close to the first notch surface, and the second limiting surface is close to the second notch surface.

[0028] Further, the limit block is located at the second position, and the side protrusion of the limit block is inserted into a notch of the telescopic rod;

[0029] The telescopic rod is located in the slide slot, and the telescopic rod has a first end and a second end, wherein the first end is an end close to the connecting hole of the bracket body, and the second end is the other end opposite to the first end;

[0030] When the telescopic rod is subjected to a force directed from the first end to the second end, the first notch surface transfers the force to the first limit surface. After the first limit surface is subjected to the force, the force is transferred to the spring through the limit block so that the spring contracts. When the spring contracts, the limit block is located at the first position;

[0031] When the telescopic rod is subjected to a force directed from the second end to the first end, the first notch surface transfers the force to the second limiting surface. After the second limiting surface is subjected to the force, the force is transferred to the limiting block but cannot be transferred to the spring to cause it to contract, so that the telescopic rod cannot slide in the sliding groove.

[0032] Further, the limit block is located at the first position, and the side protrusion of the limit block is not stuck in any notch of the telescopic rod, so that the telescopic rod can slide in the slide groove;

[0033] When the telescopic rod slides to the third position in the slide groove, the side protrusion of the limit block cannot be inserted into any notch of the telescopic rod, and the telescopic rod can slide in the slide groove, wherein the third position is the position of the telescopic rod when the side protrusion cannot contact any notch;

[0034] When the telescopic rod slides to the fourth position in the sliding groove, the side protrusion of the limit block is stuck in a notch of the telescopic rod, and the telescopic rod cannot slide in the sliding groove, wherein the third position is the position of the telescopic rod when the side protrusion can contact a notch.

[0035] Further, the limiting plate has a mounting portion;

[0036] The mounting portion is mounted on the limiting plate mounting groove by screws, so that the limiting protrusion extends into the slide groove, wherein when the mounting portion is mounted on the limiting plate mounting groove, the limiting protrusion does not contact the bottom of the slide groove;

[0037] The limiting plate installation groove is adjacent to and connected to the sliding groove; the depth of the installation groove is smaller than the depth of the sliding groove.

[0038] Further, the guide rail groove is on a side close to the cover plate;

[0039] When the cover plate covers the slide groove, the limiting groove and the limiting plate mounting groove, and the telescopic rod is located in the slide groove, the cover plate and the guide rail groove form a cavity, so that when the telescopic rod slides in the slide groove, the limiting protrusion is always in the cavity.

[0040] It can be seen from the analysis that the utility model discloses a retractable bracket, which is fixed to the back of the supported object by screws or other fixing parts through the reserved holes on the back of the supported object (for example, the wall-mounted holes on the back of the display, the wall-mounted holes on the back of the photo frame), so as to achieve the technical effect of supporting the supported object; the retractable bracket provides at least one supporting point, which can make the supported object stand up in a balanced manner; the connection plate can be easily rotated and adjusted, so that the adjustment of the angle at which the supported object is supported and stood up is convenient; the retractable bracket can be retracted and extended to adapt to supported objects of different sizes and dimensions, and the support has strong adaptability; when the user adjusts the retractable bracket, he directly pulls from the first end to the second end, that is, pulls out the retractable rod of the retractable bracket, so that the overall length of the retractable bracket becomes longer, and the retractable adjustment is convenient; once the retractable rod is stuck in the gap by the limit block, when the retractable rod is subjected to the force from the second end to the first end, the force cannot be transmitted to the spring 7a and the spring 7b, so that the spring contracts, and the retractable rod cannot be automatically retracted; Fig.17 and Fig.18 When supporting the supported object as shown in FIG. 1 , the telescopic rod will obviously be subjected to a force directed from the second end to the first end. In this case, the telescopic rod cannot be automatically retracted, thereby ensuring the stability of the support. When the user needs to retract the telescopic rod (the state of the telescopic rod being retracted is shown in FIG. 15 , and the state of the telescopic rod not being retracted is shown in FIG. 15 ), the telescopic rod is automatically retracted. Fig.14As shown in the figure, it is only necessary to apply force to the upper protrusion 403 to turn the retractable bracket into a state where the retractable rod can be retracted, making the retracting operation of the retractable rod convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0042] Figure 1 It is a schematic diagram of the exploded structure of the retractable bracket in the embodiment of the utility model;

[0043] Figure 2 A schematic diagram of the structure of the bracket body and the connecting plate in the embodiment of the utility model;

[0044] Figure 3 It is a structural schematic diagram of a state of the retractable bracket in an embodiment of the utility model;

[0045] Figure 4 It is a structural schematic diagram of a telescopic rod in an embodiment of the utility model;

[0046] Figure 5 It is a structural schematic diagram of an angle of the limit block in the embodiment of the utility model;

[0047] Figure 6 It is a structural schematic diagram of another angle of the limit block in the embodiment of the utility model;

[0048] Figure 7 This is a structural schematic diagram of a limiting block in an embodiment of the utility model from another angle;

[0049] Figure 8 It is a structural schematic diagram of an angle of the limiting plate in the embodiment of the utility model;

[0050] Fig. 9 It is a structural schematic diagram of another angle of the limiting plate in the embodiment of the utility model;

[0051] Fig.10 It is a structural schematic diagram of another state of the retractable bracket in the embodiment of the utility model;

[0052] Fig.11 It is a structural schematic diagram of the retractable support part structure in the embodiment of the utility model;

[0053] Fig.12 This is a structural schematic diagram of another state of the retractable bracket in the embodiment of the utility model;

[0054] Fig.13Another structural schematic diagram of the retractable support structure in the embodiment of the utility model;

[0055] Fig.14 It is a schematic diagram of the overall structure of the retractable bracket in the embodiment of the utility model;

[0056] Fig.15 Another overall structural schematic diagram of the retractable bracket in the embodiment of the utility model;

[0057] Fig.16 This is a schematic diagram of a usage scenario of the retractable bracket in an embodiment of the utility model;

[0058] Fig.17 This is a schematic diagram of another usage scenario of the retractable bracket in an embodiment of the utility model;

[0059] Fig.18 This is a schematic diagram of another usage scenario of the retractable bracket in the embodiment of the utility model.

[0060] Description of reference numerals: 1, bracket body; 2a, a connecting plate; 2b, another connecting plate; 3, telescopic rod; 4, limit block; 5, limit plate; 6, cover plate; 101, slide groove; 102b, a connecting hole; 103, limit groove; 104, limit plate mounting groove; 201b, mounting axis of connecting plate 2b; 202b, connecting plate mounting portion of connecting plate 2b; 301a, first notch on the telescopic rod (counted from the end away from the connecting hole 102b); 301b, telescopic rod 301a, the second notch on the telescopic rod (counted from the end away from the connecting hole 102b); 301c, the third notch on the telescopic rod (counted from the end away from the connecting hole 102b); 301d, the fourth notch on the telescopic rod (counted from the end away from the connecting hole 102b); 301e, the fifth notch on the telescopic rod (counted from the end away from the connecting hole 102b); 302, guide rail groove; 302a, one end of the guide rail groove; 302b, the other end of the guide rail groove; 302c, the third notch on the telescopic rod (counted from the end away from the connecting hole 102b); 302d, the fourth notch on the telescopic rod (counted from the end away from the connecting hole 102b); 302e, the fifth notch on the telescopic rod (counted from the end away from the connecting hole 102b); 302, the guide rail groove; 302a, one end of the guide rail groove; 302b, the other end of the guide rail groove; 302d, the fourth notch on the telescopic rod (counted from the end away from the connecting hole 102b); 302e, the fifth notch on the telescopic rod (counted from the end away from the connecting hole 102b); 302 01a1 is the first notch surface of notch 301a, 301a2 is the second notch surface of notch 301a, 301b1 is the first notch surface of notch 301b, 301b2 is the second notch surface of notch 301b, 301c1 is the first notch surface of notch 301c, 301c2 is the second notch surface of notch 301c, 301d1 is the first notch surface of notch 301d, 301d2 is the second notch surface of 301d, 301e1 is the first notch surface of notch 301e, 301e2 is the second notch surface of the notch 301e; 303, the reference surface; 304, the back surface; 401, the side protrusion; 401a, the first limiting surface; 401b, the second limiting surface; 402a, a spring hole of the limiting block; 402b, another spring hole of the limiting block; 403, the upper protrusion; 501, the limiting protrusion; 502, the mounting portion; 601, the cover plate hole; 7a, the spring arranged in the spring hole 402a; 7b, the spring arranged in the spring hole 402b; 8, the supported object. DETAILED DESCRIPTION

[0061] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention includes such modifications and variations within the scope of the appended claims and their equivalents.

[0062] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components; they can be wired electrical connections, radio connections, or wireless communication signal connections. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0063] One or more examples of the utility model are shown in the attached drawings. The detailed description uses numbers and letters to refer to the features in the drawings. Similar or similar marks in the drawings and descriptions have been used to refer to similar or similar parts of the utility model. As used herein, the terms "first", "second", and "third" etc. are used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of individual components.

[0064] like Figures 1 to 18 As shown, according to an embodiment of the utility model, a retractable bracket is provided, according to Figure 1-18 As shown, it includes a bracket body 1, at least one connecting plate 2, a telescopic rod 3, a limit block 4, a limit plate 5, and a cover plate 6; for example, the connecting plates of the telescopic bracket are set as connecting plates 2a and 2b.

[0065] Optionally, the bracket body 1 has a slide groove 101, a connecting hole 102b, a limit groove 103, and a limit plate mounting groove 104. The bracket body 1 is in the shape of an elongated strip. The connecting hole 102b is located close to one end of the bracket body 1, and the limit groove 103 is located close to the other end of the bracket body 1. The slide groove 101 is adjacent to and connected to the limit groove 103.

[0066] Optionally, the connecting plate 2b has a mounting shaft 201b, which can be rotatably connected to the connecting hole 102b; the connecting plate 2b has a connecting plate mounting portion 202b, and the connecting plate mounting portion 202b has holes, so that screws can be used to fix the connecting plate mounting portion 202b to the back of the display through the holes on the connecting plate mounting portion 202b, wherein the screws can be screwed into wall-mounting holes reserved on the back of the display (or other holes for fixing).

[0067] Optionally, the telescopic rod 3 is located in the slide groove 101 , the telescopic rod 3 has notches 301a , 301b , 301c , 301d , and 301e , the telescopic rod 3 has a guide groove 302 , and the side of the telescopic rod 3 having the notch is close to the limiting groove 103 .

[0068] Optionally, one side of the telescopic rod 3 has at least one notch; the telescopic rod 3 is made of a hard material, and the notch has at least two planes formed by the hard material, recorded as notch surfaces, wherein the hard material includes at least one of metal or hard plastic; on the side of the telescopic rod 3 having the notch, there is a part outside the notch, wherein the part outside the notch is formed by the hard material as a discontinuous plane, recorded as a reference plane 303.

[0069] Optionally, for each notch, there are two corresponding notch surfaces, and the two notch surfaces include a first notch surface and a second notch surface; wherein the first notch surface is a plane on the telescopic rod 3 close to the connecting hole of the bracket body 1, and the second notch surface is a surface in the corresponding notch opposite to the first notch surface; for example, 301a1 is the first notch surface of the notch 301a, 301a2 is the second notch surface of the notch 301a, 301b1 is the first notch surface of the notch 301b, 301b2 is the second notch surface of the notch 301b, 301c1 is the first notch surface of the notch 301c, 301c2 is the second notch surface of the notch 301c, 301d1 is the first notch surface of the notch 301d, 301d2 is the second notch surface of 301d, 301e1 is the first notch surface of the notch 301e, and 301e2 is the second notch surface of the notch 301e.

[0070] Optionally, the angle formed by the first notch surface and the hard material on the reference surface 303 is greater than 90 degrees and not greater than 180 degrees; the angle formed by the second notch surface and the hard material on the reference surface 303 is not greater than 90 degrees; in actual applications, the first notch surface, the second notch surface and the reference surface can all be set to curved surfaces.

[0071] Optionally, the telescopic rod 3 has a back side 304, wherein the back side 304 is a side of the telescopic rod 3 opposite to a side having the guide groove 302; Fig.11 For the retractable bracket Fig.10 Schematic diagram of the positional relationship between the telescopic rod 3, the limit block 4, the limit plate 5, the spring 7a, and the spring 7b in the state; wherein, Fig.11 The angle of display is Fig.10 Flipping the front and back so that the back side 304 faces upward; Fig.11 In the embodiment, spring 7a and spring 7b are both in a compressed state; Fig.11The positional relationship shown in the figure does not isolate the four components of the telescopic rod 3, the limit block 4, the limit plate 5, the spring 7a and the spring 7b. It can be understood that the telescopic rod 3 is located in the slide groove 101, the limit block 4 is located in the first position of the limit groove 103, and the limit plate 5 is located in the limit plate installation groove 104; Fig.11 In the embodiment, the limit block 4 is not engaged in any notch on the telescopic rod 3, so the telescopic rod 3 is in a slidable state. When the telescopic rod 3 slides, the limit plate 5 does not interact with any notch on the telescopic rod 3 by force.

[0072] Optionally, the telescopic rod 3 has a back side 304, wherein the back side 304 is a side of the telescopic rod 3 opposite to a side having the guide groove 302; Fig.13 For the retractable bracket Fig.12 Schematic diagram of the positional relationship between the telescopic rod 3, the limit block 4, the limit plate 5, the spring 7a, and the spring 7b in the state; wherein, Fig.13 The angle of display is Fig.12 Flipping the front and back so that the back side 304 faces upward; Fig.13 In the embodiment, spring 7a and spring 7b are both in a compressed state; Fig.13 The positional relationship shown in the figure does not isolate the four components of the telescopic rod 3, the limit block 4, the limit plate 5, the spring 7a and the spring 7b. It can be understood that the telescopic rod 3 is located in the slide groove 101, the limit block is located in the first position of the limit groove 103, and the limit plate 5 is located in the limit plate installation groove 104; Fig.13 In the embodiment, the side protrusion 401 on the limit block 4 is inserted into the notch 301c on the telescopic rod 3, so the telescopic rod 3 is in a non-sliding state.

[0073] Optionally, the limit block 4 has a side protrusion 401, and the limit block 4 is located at the first position or the second position of the limit groove; wherein, when the limit block 4 is located at the first position, the telescopic rod 3 can slide in the slide groove; when the limit block 4 is located at the second position, the side protrusion is inserted into the notch of the telescopic rod 3 so that the telescopic rod 3 cannot slide in the slide groove; Fig.10 and Fig.11 As shown, the limit block 4 is located in the first position; Fig.12 and Fig.13 As shown, the limit block is located at the second position.

[0074] Optionally, the limit block 4 has a spring hole 402a and a spring hole 402b; a spring 7a is arranged in the spring hole 402a, and a spring 7b is arranged in the spring hole 402b; the spring limits the limit block 4 to the second position; when the limit block is in the second position, the positional relationship between the telescopic rod 3, the limit block 4, the limit plate 5, the spring 7a, and the spring 7b is as follows: Fig.13 shown.

[0075] Optionally, the limit block 4 transmits force to the spring so that the spring 7a and the spring 7b contract, and the limit block 4 is located in the first position when the spring contracts; when the limit block is in the first position, the positional relationship between the telescopic rod 3, the limit block 4, the limit plate 5, the spring 7a, and the spring 7b is as follows: Fig.11 shown.

[0076] Optionally, the limit block 4 has an upper protrusion 403; the upper protrusion 403 passes through a cover plate hole 601 pre-arranged on the cover plate 6, wherein when the cover plate 6 is covered and installed on the limit groove 103, the position of the cover plate hole 601 is located on the limit groove 103; when the upper protrusion 403 is subjected to a force in a first direction, the limit block 4 transmits the force to the spring to compress the spring 7a and the spring 7b, wherein the first direction is parallel to the cover plate 6, and points from a side of the upper protrusion 403 away from the spring to a side of the upper protrusion 403 close to the spring;

[0077] For example, Fig.14 The position of the upper protrusion 403 shown in FIG. 4 represents the position of the upper protrusion 403 when the spring 7a and the spring 7b are compressed; for example, Fig.15 The position of the upper protrusion 403 shown represents the position of the upper protrusion 403 when the spring 7a and the spring 7b are compressed;

[0078] In practical applications, the upper protrusion 403 is in Fig.15 In the state shown, the limit block 4 is limited to the second position by the spring. At this time, a force in the first direction can be applied to the upper protrusion 403 to force the spring to compress, so that the limit block 4 slides to the first position. At this time, the position of the upper protrusion 403 is as shown in FIG. Fig.14 As shown; it is understandable that Figure 15 to Figure 14 The changing process is only used to illustrate the position change of the limit block 4 and the upper protrusion 403, and the change of the telescopic rod is not involved in the process.

[0079] Optionally, the limit plate 5 is in the limit plate installation groove 104, and the limit plate 5 has a limit protrusion 501; when the telescopic rod 3 slides in the slide groove, the limit protrusion 501 is located in the guide rail groove 302; when the limit protrusion 501 contacts one end of the guide rail groove 302, the limit protrusion 501 limits the telescopic rod 3 from sliding toward the other end of the guide rail groove; for example, when the limit protrusion 501 contacts 302a, the limit protrusion 501 limits the telescopic rod 3 from sliding toward one end 302b.

[0080] Optionally, the limit plate 5 has a mounting portion 502, which is mounted on the limit plate mounting slot 104 by screws, so that the limit protrusion 501 extends into the slide slot 101, wherein when the mounting portion 502 is installed in the limit plate mounting slot 104, the limit protrusion 501 does not contact the bottom of the slide slot.

[0081] Optionally, the limiting plate installation groove 104 is adjacent to and connected to the sliding groove 101; the depth of the installation groove is less than the depth of the sliding groove.

[0082] Optionally, the cover plate 6 covers the slide groove 101, the limiting groove 103 and the limiting plate mounting groove 104;

[0083] Optionally, a cover plate hole 601 is pre-arranged on the cover plate 6;

[0084] exist Figures 1 to 18 In the figure, the cover plate 6 is not shown. In practical applications, the cover plate 6 can be covered on the slide groove 101, the limiting groove 103 and the limiting plate installation groove 104.

[0085] Optionally, the side protrusion 401 of the limit block 4 has a first limit surface 401a and a second limit surface 401b, wherein, when the limit block 4 is placed in the limit groove 103, the first limit surface 401a is a plane on the side protrusion close to the connecting hole 102b (or connecting hole 102a) of the bracket body 1, and the second limit surface is a plane on the side protrusion away from the connecting hole of the bracket body 1.

[0086] Optionally, when the limit block 4 is in the second position, the side protrusion is inserted into one of all the notches, wherein the first limit surface is close to the first notch surface, and the second limit surface is close to the second notch surface; for example, Fig.12 As shown, the side protrusion 401 is inserted into the notch 301c, and the Figure 4 , Figure 6 , Fig.12 and Fig.13 , it can be seen that when the retractable bracket is in Fig.12 In the state shown in FIG. 3 , the first limiting surface 401a is close to the first notch surface 301c1, and the second limiting surface 401b is close to the second notch surface 301c2.

[0087] Optionally, the angles of the first limiting surface 401a and the second limiting surface 401b can be set so that the first limiting surface 401a can contact any first notch surface and the second limiting surface 402b can contact any second notch surface.

[0088] Optionally, the stop block 4 is located at the second position, and the side protrusion of the stop block 4 is inserted into a notch of the telescopic rod 3; for example, Fig.12 As shown, the side protrusion 401 is inserted into the notch 301c.

[0089] In this embodiment, the telescopic rod 3 is located in the slide groove, and the telescopic rod 3 has a first end and a second end, wherein the first end is an end close to the connecting hole 102b (or connecting hole 102a) of the bracket body 1, and the second end is the other end opposite to the first end, specifically, the second end is an end on the bracket body 1 close to the limiting plate mounting groove 104.

[0090] Optionally, the angle formed by the first notch surface and the hard material on the reference surface 303 is greater than 90 degrees and less than 180 degrees; when the telescopic rod 3 is subjected to a force directed from the first end to the second end, the first notch surface transfers the force to the first limit surface, and after the first limit surface is subjected to the force, the force is transferred to the spring through the limit block 4 to cause the spring to contract, and when the spring contracts, the limit block 4 is located at the first position;

[0091] For example, when the telescopic rod 3 is subjected to a force directed from the first end to the second end, the first notch surface 301c1 transfers the force to the first limit surface 401a. After the first limit surface 401a is subjected to the force, the force is transferred to the spring 7a and the spring 7b through the limit block 4 to cause the spring to contract. When the spring contracts, the limit block 4 is located in the first position. Since the angle formed by the first notch surface and the hard material on the reference surface 303 is greater than 90 degrees and not greater than 180 degrees, after the first limit surface 401a is subjected to the force, the limit block 4 can transfer the force to the spring 7a and the spring 7b to cause the spring to contract.

[0092] In practical applications, the position of the upper protrusion is as follows Fig.15 As shown, a force away from the bracket body 1 can be applied to the telescopic rod (i.e., the force from the first end to the second end), and the telescopic rod transfers the force to the first notch surface 301c1, and the first notch surface 301c1 transfers the force to the first limit surface 401a. After the first limit surface 401a is subjected to force, the force is transferred to the spring 7a and the spring 7b through the limit block 4 to cause the spring to contract. When the spring contracts, the limit block 4 is located in the first position. At this time, the position of the upper protrusion 403 is as shown in FIG. Fig.14 As shown, at the same time, the telescopic rod slides to Fig.14 ; it is understandable that the example here Figure 15 to Figure 14 The changing process involves both the position change of the limit block 4 and the upper protrusion 403 and the change of the telescopic rod, but the position of the telescopic rod is only used as an example and is not limited thereto.

[0093] Optionally, the angle formed by the second notch surface and the hard material on the reference surface 303 is not greater than 90 degrees; when the telescopic rod 3 is subjected to a force directed from the second end to the first end, the first notch surface transmits the force to the second limit surface, and after the second limit surface is subjected to the force, the force is transmitted to the limit block 4 but cannot be transmitted to the spring to cause it to contract, so that the telescopic rod 3 cannot slide in the slide groove;

[0094] For example, when the telescopic rod 3 is subjected to a force directed from the second end to the first end, the first notch surface 301c1 transfers the force to the second limit surface 401a; since the angle formed by the second notch surface and the hard material on the reference surface 303 is not greater than 90 degrees, after the first limit surface 401a is subjected to force, the limit block 4 cannot transfer the force to the spring 7a and the spring 7b, causing the spring to contract.

[0095] Optionally, the limit block 4 is located at the first position, and the side protrusion of the limit block 4 does not fit into any notch of the telescopic rod 3, so that the telescopic rod 3 can slide in the slide groove; when the telescopic rod 3 slides to the third position in the slide groove, the side protrusion of the limit block 4 cannot fit into any notch of the telescopic rod 3, and the telescopic rod 3 can slide in the slide groove, wherein the third position is the position of the telescopic rod 3 when the side protrusion and any notch cannot contact each other; for example, Fig.10 As shown, the third position includes at least Fig.10 The position of the telescopic rod 3 in the slide slot 101 is shown.

[0096] Optionally, when the telescopic rod 3 slides to the fourth position in the slide groove, the side protrusion of the limit block 4 is inserted into a notch of the telescopic rod 3, and the telescopic rod 3 cannot slide in the slide groove, wherein the third position is the position of the telescopic rod 3 when the side protrusion can contact a notch; for example, Fig.12 As shown, the fourth position includes at least Fig.12 The position of the telescopic rod 3 in the slide slot 101 is shown.

[0097] Optionally, the guide rail groove 302 is on the side close to the cover plate 6; when the cover plate 6 covers the slide groove 101, the limit groove 103 and the limit plate mounting groove 104, and the telescopic rod 3 is located in the slide groove 101, the cover plate 6 and the guide rail groove 302 form a cavity, so that when the telescopic rod 3 slides in the slide groove 101, the limit protrusion 501 is always in the cavity.

[0098] In practical applications, the retractable bracket described in this embodiment can be used to support any one of a display, a photo frame, an electronic photo frame, a tablet, a mobile phone, a computer, and a television; during use, the retractable bracket is used to fix the connecting plate of the retractable bracket to the back of the supported object by cooperating with the reserved holes on the back of the supported object (for example, the wall-mounting holes on the back of the display, the wall-mounting holes on the back of the photo frame), using screws or other fixing components, so as to achieve the technical effect of supporting the supported object; for example, Fig.16 As shown, the connecting plate 2a and the connecting plate 2b are fixed to a supported object 8 for example, and screws can be passed through the holes on the connecting plate 2a and the connecting plate 2b and fixed to the supported object 8;

[0099] In practical applications, the supported object provides at least two supporting points, and the retractable bracket provides at least one supporting point, so that the supported object can stand upright in a balanced manner; for example, Fig.17 As shown, in the process of the telescopic bracket supporting the supported object, one end of the telescopic rod 3 and one end of the supported object 8 are in the same plane, so it can stand stably on the plane;

[0100] In practical applications, the retractable bracket can be extended and retracted to adjust the angle at which the supported object stands; for example, Fig.18 As shown, compared to Fig.17 , the telescopic rod 3 is extended further, so that Fig.18 The angle at which the supported object 8 is supported and Fig.17 different;

[0101] In actual applications, the angle at which the supported object 8 is supported can be adjusted by adjusting the angle between the connecting plates 2a, 2b and the bracket body 1; since the connecting plates are rotatably connected to the connecting holes of the bracket body (for example, the connecting plates 2b are rotatably connected to the connecting holes 102b of the bracket body 1), the connecting plates can be easily rotated and adjusted, thereby facilitating the adjustment of the angle at which the supported object is supported.

[0102] In practical applications, the retractable bracket can be retracted to adapt to supported objects of different sizes and dimensions, and the support has strong adaptability.

[0103] In this embodiment, the telescopic rod 3 is located in the slide groove, and the telescopic rod 3 has a first end and a second end, wherein the first end is an end close to the connecting hole 102b (or connecting hole 102a) of the bracket body 1, and the second end is the other end opposite to the first end, specifically, the second end is an end on the bracket body 1 close to the limiting plate mounting groove 104.

[0104] In practical applications, the angle formed by the first notch surface and the hard material on the reference surface 303 is greater than 90 degrees and less than 180 degrees; when the telescopic rod 3 is subjected to a force directed from the first end to the second end, the first notch surface transfers the force to the first limit surface, and after the first limit surface is subjected to the force, the force is transferred to the spring through the limit block 4 to make the spring contract, and when the spring contracts, the limit block 4 is located in the first position; for example, when the telescopic rod 3 is subjected to a force directed from the first end to the second end, the first notch surface 301c1 transfers the force to the first limit surface 401a, and after the first limit surface 401a is subjected to the force, the force is transferred to the spring 7a and the spring 7b through the limit block 4 to make the spring contract, and when the spring contracts, the limit block 4 is located in the first position; since the angle formed by the first notch surface and the hard material on the reference surface 303 is greater than 90 degrees and less than 180 degrees, after the first limit surface 401a is subjected to the force, the limit block 4 can transfer the force to the spring 7a and the spring 7b to make the spring contract;

[0105] The above design allows the user to directly pull from the first end to the second end when adjusting the retractable bracket, that is, to pull out the telescopic rod of the retractable bracket, so that the overall length of the retractable bracket becomes longer, and the retractable adjustment is convenient.

[0106] In practical applications, the angle formed by the second notch surface and the hard material on the reference surface 303 is not greater than 90 degrees; when the telescopic rod 3 is subjected to a force directed from the second end to the first end, the first notch surface transfers the force to the second limit surface, and after the second limit surface is subjected to the force, the force is transferred to the limit block 4 but cannot be transferred to the spring to shrink it, so that the telescopic rod 3 cannot slide in the slide groove; for example, when the telescopic rod 3 is subjected to a force directed from the second end to the first end, the first notch surface 301c1 transfers the force to the second limit surface 401a; because the angle formed by the second notch surface and the hard material on the reference surface 303 is not greater than 90 degrees, after the first limit surface 401a is subjected to the force, the limit block 4 cannot transfer the force to the spring 7a and the spring 7b to shrink the spring;

[0107] The above design makes it impossible for the telescopic rod to be automatically retracted once the telescopic rod is stuck in the gap by the stop block, when the telescopic rod is subjected to a force directed from the second end to the first end, the force cannot be transmitted to the spring 7a and the spring 7b to cause the spring to contract; Fig.17 and Fig.18 When supporting the supported object, the telescopic rod will obviously be subjected to a force directed from the second end to the first end. In this case, the telescopic rod cannot be automatically retracted, thereby ensuring the stability of the support.

[0108] In practical applications, the limit block 4 has an upper protrusion 403; the upper protrusion 403 passes through a cover plate hole 601 pre-set on the cover plate 6, wherein when the cover plate 6 is covered and installed on the limit groove 103, the position of the cover plate hole 601 is located on the limit groove 103; when the upper protrusion 403 is subjected to a force in a first direction, the limit block 4 transmits the force to the spring to compress the spring 7a and the spring 7b, wherein the first direction is parallel to the cover plate 6, and points from a side of the upper protrusion 403 away from the spring to a side of the upper protrusion 403 close to the spring;

[0109] After the user applies force to the upper protrusion 403 from the first direction, the limit block 4 transmits the force to the spring to compress the spring 7a and the spring 7b. The limit block is in the first position, so that the telescopic rod 3 can slide in the slide groove 101; this allows the user to retract the telescopic rod (the state of the telescopic rod being retracted is shown in 15, and the state of the telescopic rod being not retracted is shown in Fig.14 As shown in the figure, it is only necessary to apply force to the upper protrusion 403 to turn the retractable bracket into a state where the retractable rod can be retracted, making the retracting operation of the retractable rod convenient.

[0110] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0111] By matching the reserved holes on the back of the supported object (e.g., the wall-hanging holes on the back of the display, the wall-hanging holes on the back of the photo frame), the connecting plate of the retractable bracket is fixed to the back of the supported object with screws or other fixing parts, thereby achieving the technical effect of supporting the supported object; the retractable bracket provides at least one supporting point, which can make the supported object stand up in a balanced manner;

[0112] The connection plate can be easily rotated and adjusted, so that the angle at which the supported object is supported can be easily adjusted;

[0113] The retractable bracket can be extended and retracted to adapt to supported objects of different sizes and dimensions, and the support has strong adaptability;

[0114] When the user adjusts the retractable bracket, the user directly pulls from the first end to the second end, that is, pulls out the telescopic rod of the retractable bracket, so that the overall length of the retractable bracket becomes longer, and the retractable adjustment is convenient;

[0115] Once the telescopic rod is stuck in the gap by the stop block, when the telescopic rod is subjected to a force directed from the second end to the first end, the force cannot be transmitted to the spring 7a and the spring 7b to cause the spring to contract, thereby failing to automatically retract the telescopic rod; Fig.17 and Fig.18 When supporting the supported object, the telescopic rod will obviously be subjected to a force directed from the second end to the first end. In this case, the telescopic rod cannot be automatically retracted, thereby ensuring the stability of the support;

[0116] When the user needs to retract the telescopic rod (the state of the telescopic rod being retracted is shown in 15, and the state of the telescopic rod being not retracted is shown in Fig.14 As shown in the figure, it is only necessary to apply force to the upper protrusion 403 to turn the retractable bracket into a state where the retractable rod can be retracted, making the retracting operation of the retractable rod convenient.

[0117] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A retractable bracket, It is characterized in that It includes a bracket body, at least one connecting plate, a telescopic rod, a limit block, a limit plate, and a cover plate; The bracket body has a slide groove, at least one connecting hole, a limiting groove, and a limiting plate mounting groove. The bracket body is in the shape of an elongated strip. The connecting hole is located near one end of the bracket body, the limiting groove is located near the other end of the bracket body, and the slide groove is adjacent to and connected to the limiting groove. The connecting plate has a mounting shaft, and the mounting shaft is rotatably connected to the connecting hole; The telescopic rod is located in the sliding groove, the telescopic rod has a notch, and a side of the telescopic rod having the notch is close to the limiting groove; The limit block has a side protrusion, and the limit block is located at the first position or the second position of the limit slot; wherein, when the limit block is located at the first position, the telescopic rod can slide in the slide slot; when the limit block is located at the second position, the side protrusion is stuck in the notch of the telescopic rod so that the telescopic rod cannot slide in the slide slot; The limiting plate is in the limiting plate installation groove, the limiting plate has a limiting protrusion, and the telescopic rod has a guide rail groove; when the telescopic rod slides in the slide groove, the limiting protrusion is located in the guide rail groove; when the limiting protrusion contacts one end of the guide rail groove, the limiting protrusion limits the telescopic rod from sliding toward the other end of the guide rail groove; The cover plate covers the slide groove, the limiting groove and the limiting plate installation groove.

2. The retractable bracket according to claim 1, It is characterized in that The limiting block has at least one spring hole; For each of the spring holes, a spring is arranged in the spring hole; The spring limits the limit block to the second position; wherein, when the limit block transmits force to the spring so that the spring contracts, the limit block is located at the first position when the spring contracts.

3. The retractable bracket according to claim 2, It is characterized in that The limit block has an upper protrusion; The upper protrusion passes through a cover plate hole pre-arranged on the cover plate, wherein when the cover plate is covered and installed on the limiting groove, the position of the cover plate hole is located on the limiting groove; When the upper protrusion is subjected to a force in a first direction, the limit block transfers the force to the spring to compress the spring, wherein the first direction is parallel to the cover plate and points from a side of the upper protrusion away from the spring to a side of the upper protrusion close to the spring.

4. The retractable bracket according to claim 3, It is characterized in that One side of the telescopic rod has at least one notch; The telescopic rod is made of a hard material, and the notch has at least two planes formed by the hard material, which are referred to as notch surfaces, wherein the hard material includes at least one of metal or hard plastic; On one side of the telescopic rod having the notch, there is a portion outside the notch, wherein the portion outside the notch is formed of a hard material to form a discontinuous plane, which is recorded as a reference plane.

5. The retractable support according to claim 4, It is characterized in that For each of the notches, there are two corresponding notch surfaces, the two notch surfaces include a first notch surface and a second notch surface; wherein the first notch surface is a plane on the telescopic rod close to the connecting hole of the bracket body, and the second notch surface is a surface in the corresponding notch opposite to the first notch surface; The angle formed by the first notch surface and the hard material on the reference surface is greater than 90 degrees and not greater than 180 degrees; The angle formed by the second notch surface and the hard material on the reference surface is no greater than 90 degrees.

6. The retractable support according to claim 5, It is characterized in that The side protrusion of the limit block has a first limit surface and a second limit surface, wherein when the limit block is placed in the limit groove, the first limit surface is a plane on the side protrusion close to the connecting hole of the bracket body, and the second limit surface is a plane on the side protrusion away from the connecting hole of the bracket body; When the limiting block is located at the second position, the side protrusion is inserted into one of all the notches, wherein the first limiting surface is close to the first notch surface, and the second limiting surface is close to the second notch surface.

7. The retractable support according to claim 6, It is characterized in that The limit block is located at the second position, and the side protrusion of the limit block is inserted into a notch of the telescopic rod; The telescopic rod is located in the slide slot, and the telescopic rod has a first end and a second end, wherein the first end is an end close to the connecting hole of the bracket body, and the second end is the other end opposite to the first end; When the telescopic rod is subjected to a force directed from the first end to the second end, the first notch surface transfers the force to the first limit surface. After the first limit surface is subjected to the force, the force is transferred to the spring through the limit block so that the spring contracts. When the spring contracts, the limit block is located at the first position; When the telescopic rod is subjected to a force directed from the second end to the first end, the first notch surface transfers the force to the second limiting surface. After the second limiting surface is subjected to the force, the force is transferred to the limiting block but cannot be transferred to the spring to cause it to contract, so that the telescopic rod cannot slide in the sliding groove.

8. The retractable support according to claim 6, It is characterized in that The limit block is located at the first position, and the side protrusion of the limit block is not inserted into any notch of the telescopic rod, so that the telescopic rod can slide in the slide groove; When the telescopic rod slides to the third position in the slide groove, the side protrusion of the limit block cannot be inserted into any notch of the telescopic rod, and the telescopic rod can slide in the slide groove, wherein the third position is the position of the telescopic rod when the side protrusion cannot contact any notch; When the telescopic rod slides to the fourth position in the sliding groove, the side protrusion of the limit block is stuck in a notch of the telescopic rod, and the telescopic rod cannot slide in the sliding groove, wherein the third position is the position of the telescopic rod when the side protrusion can contact a notch.

9. The retractable bracket according to claim 1, It is characterized in that The limiting plate has a mounting portion; The mounting portion is mounted on the limiting plate mounting groove by screws, so that the limiting protrusion extends into the slide groove, wherein when the mounting portion is mounted on the limiting plate mounting groove, the limiting protrusion does not contact the bottom of the slide groove; The limiting plate installation groove is adjacent to and connected to the sliding groove; the depth of the installation groove is smaller than the depth of the sliding groove.

10. The retractable support according to claim 9, It is characterized in that The guide rail groove is on a side close to the cover plate; When the cover plate covers the slide groove, the limiting groove and the limiting plate mounting groove, and the telescopic rod is located in the slide groove, the cover plate and the guide rail groove form a cavity, so that when the telescopic rod slides in the slide groove, the limiting protrusion is always in the cavity.

Images