Folding mechanism

Abstract

The utility model relates to the field of machinery, in particular to a folding mechanism. Comprising a base, connecting rods, elastic pieces, supporting pieces and fixing pieces. The first end of the connecting rod can rotate in the direction close to or away from the base. The first end of the elastic piece is fixedly connected with the base, the second end is fixedly connected with the connecting rod, and acting force facing the base can be provided for the first end of the connecting rod. The first end of the supporting piece can rotate in the direction close to or away from the connecting rod. When the supporting piece rotates, the first end of the supporting piece abuts against the base or the installation platform and can slide on the surface of the base or the installation platform. The fixing piece is fixedly connected or in transmission connection with the supporting piece. In the unfolding process of the folding mechanism, the connecting rods, the supporting pieces and the surface of the base or the surface of the mounting platform form a stable triangular structure all the time, compared with a multi-connecting-rod structure in the prior art, the stability is better, and the technical problem that the stability is poor due to the multi-connecting-rod structure in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a folding mechanism. Background Art

[0002] In many application scenarios, for ease of use, a fixing frame is often used to install the product on a mounting platform for the operator to use, such as installing a television, projector, operation panel, etc. on a vertical wall, and such products generally have interfaces set on the back. In order to save space, the product is generally spaced a short distance from the wall, which makes it difficult to operate the back interface. Therefore, the prior art generally uses a foldable fixing frame for installation. When the operator needs to operate the back of the product, the fixing frame can be unfolded by applying external force, so that the distance between the product and the wall becomes larger, which is convenient for subsequent operations. However, the foldable fixing frames used in the prior art all use a multi-link structure, which has poor stability and is prone to shaking during the unfolding process. Utility Model Content

[0003] The utility model provides a folding mechanism, which solves the technical problem of poor stability caused by a multi-link structure in the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted in this embodiment is as follows:

[0005] In some embodiments, the utility model provides a folding mechanism, comprising:

[0006] A base, used to fix the folding mechanism on a mounting platform;

[0007] A connecting rod is rotatably connected to the base, with the connection point serving as a first connection point, and a first end of the connecting rod can rotate around the first connection point toward or away from the base;

[0008] An elastic member, a first end of which is fixedly connected to the base, and a second end of which is fixedly connected to the connecting rod, capable of providing a force for the first end of the connecting rod to act in a direction toward the base;

[0009] A support member is rotatably connected to the connecting rod, with the connection point serving as a second connection point, and its first end can rotate around the second connection point in a direction close to or away from the connecting rod; when the support member rotates, its first end abuts against the base or the mounting platform and can slide on the surface of the base or the mounting platform;

[0010] The fixing member is fixedly connected or transmission-connected to the supporting member.

[0011] In some embodiments, the connecting rod is a U-shaped groove structure, the base is an elongated strip, and the width of the base matches the width of the slot of the connecting rod; one end of the base is located in the slot of the connecting rod, and the two sides of one end of the base are respectively hinged to the two side walls of the connecting rod at the first connection point.

[0012] In some embodiments, the second end of the support member is located in the notch of the connecting rod.

[0013] In some embodiments, the connecting rod and the support member are respectively provided with a first through hole and a second through hole at the second connection point; the folding structure also includes a rotating shaft; the rotating shaft passes through the first through hole and the second through hole, is rotatably connected to the connecting rod, and is fixedly connected to the support member.

[0014] In some embodiments, the folding mechanism further includes a rotary drive mechanism, a rotary end of which is transmission-connected to the rotating shaft.

[0015] In some embodiments, the fixing member is a U-shaped groove structure, and the width of the connecting rod matches the width of the groove of the fixing member; the second connection point is located at the first end of the connecting rod, and the first end of the connecting rod is located in the groove of the fixing member.

[0016] In some embodiments, the elastic member is a compression spring located on a side of the first connection point away from the first end of the connecting rod.

[0017] In some embodiments, the first end of the support member has a curved surface.

[0018] In some embodiments, the support member is an elliptical sheet structure.

[0019] In some embodiments, the base is a U-shaped groove structure, and the groove of the base faces the direction of the connecting rod; when the support member rotates, its first end is located in the groove of the base.

[0020] Beneficial Effects

[0021] During the deployment process of the utility model, the connecting rod, the support member and the surface of the base or the mounting platform always form a stable triangular structure, which has better stability than the multi-link structure in the prior art, and solves the technical problem of poor stability caused by the multi-link structure in the prior art.

[0022] Additional aspects and advantages of the embodiments of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] The methods, systems and / or programs in the accompanying drawings will be further described according to exemplary embodiments. These exemplary embodiments will be described in detail with reference to the drawings. These exemplary embodiments are non-limiting exemplary embodiments, wherein example numbers represent similar mechanisms in the various views of the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the folding mechanism structure in an unfolded state provided by an embodiment of the utility model.

[0026] Figure 2 It is a structural schematic diagram of a folding mechanism in a folded state provided by an embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 001-product;

[0029] 10- base;

[0030] 20-connecting rod; 21-first connection point; 22-second connection point;

[0031] 30- elastic member;

[0032] 40-support member; 41-rotating shaft;

[0033] 50-Fixers. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme 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, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the term "connection" 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 direct connection, or an indirect connection 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 the present invention can be understood according to specific circumstances.

[0038] In some embodiments, the utility model provides a folding mechanism, including a base 10, a connecting rod 20, an elastic member 30, a support member 40 and a fixing member 50. The base 10 is used to fix the folding mechanism on the mounting platform. The connecting rod 20 is rotatably connected to the base 10, and the connection point is used as a first connection point 21, and its first end can rotate around the first connection point 21 in a direction close to or away from the base 10. Specifically, the base 10 and the connecting rod 20 can be rotatably connected in a hinged manner. The first end of the elastic member 30 is fixedly connected to the base 10, and the second end is fixedly connected to the connecting rod 20, which can provide a force for the first end of the connecting rod 20 in the direction of the base 10. The support member 40 is rotatably connected to the connecting rod 20, and the connection point is used as a second connection point 22, and its first end can rotate around the second connection point 22 in a direction close to or away from the connecting rod 20. The first connection point 21 and the second connection point 22 are arranged along the axial direction of the connecting rod 20. Specifically, the support member 40 and the connecting rod 20 can be rotatably connected in a hinged manner. The support member 40 and the base 10 are located on the same side of the connecting rod 20. When the support member 40 rotates, its first end abuts against the base 10 or the mounting platform and can slide on the surface of the base 10 or the mounting platform. The fixing member 50 is fixedly connected or transmission-connected to the support member 40 for installing the product 001.

[0039] The initial state of the folding mechanism is a folding state. The connecting rod 20 and the base 10 are in a folding state under the force of the elastic member 30. The supporting member 40 is also in a folding state with the connecting rod 20 under the force of the base 10 or the mounting platform when no external force is applied. When in use, the operator applies an external force to the product 001 installed on the fixing member 50, so that the product 001 drives the fixing member 50 to move. Since the fixing member 50 is fixedly connected or transmission-connected with the supporting member 40, the movement of the fixing member 50 drives the supporting member 40 to rotate around the second connection point 22. At this time, the first end of the supporting member 40 abuts against the surface of the base 10 or the mounting platform, and the connecting rod 20 is unfolded in a direction away from the base 10. When the operator stops applying external force, the connecting rod 20 and the base 10 are gradually folded under the force of the elastic member 30, and the supporting member 40 is also gradually folded toward the connecting rod 20 under the pressure of the surface of the base 10 or the mounting platform, and the folding mechanism finally returns to the initial state. During the use of the folding mechanism, the connecting rod 20, the support member 40 and the surface of the base 10 or the mounting platform always form a stable triangular structure, which has better stability than the multi-link 20 structure in the prior art, and solves the technical problem of poor stability brought about by the multi-link 20 structure in the prior art.

[0040] It is understandable that the first end of the support member 40 may abut against the surface of the base 10 or directly abut against the surface of the mounting platform during movement, depending on the size of the base 10 in different application scenarios. Preferably, if the installation conditions permit, a larger base 10 may be selected so that the length from the first connection point 21 to one end of the base 10 is greater than the sum of the length from the first connection point 21 to the second connection point 22 and the length of the support member 40. This ensures that the first end of the support member 40 always abuts against the surface of the base 10 during movement and slides on the surface of the base 10, preventing the support member 40 from damaging the surface of the mounting platform due to long-term use.

[0041] In some embodiments, the connecting rod 20 is a U-shaped groove structure, the base 10 is a long strip, and the width of the base 10 matches the width of the slot of the connecting rod 20. One end of the base 10 is located in the slot of the connecting rod 20, and the two sides are respectively hinged to the two side walls of the connecting rod 20 at the first connection point 21. In the folded state, the base 10 can be partially or completely accommodated in the slot of the connecting rod 20, saving space and improving the space utilization efficiency of the utility model.

[0042] Furthermore, the second end of the support member 40 is located in the notch of the connecting rod 20, which can increase the stability of the support member 40 when rotating around the second connection point 22 and prevent it from loosening from the notch.

[0043] In some embodiments, the connecting rod 20 and the support member 40 are respectively provided with a first through hole and a second through hole at the second connection point 22. The folding mechanism further includes a rotating shaft 41, which passes through the first through hole and the second through hole. The rotating shaft 41 is fixedly connected to the support member 40 and is rotatably connected to the connecting rod 20. The figure shows the case where the connecting rod 20 adopts a U-shaped groove structure, in which case there are two first through holes, which are respectively located on the two side walls of the connecting rod 20.

[0044] There are many ways to realize that the rotating shaft 41 is fixedly connected to the support member 40 and rotatably connected to the connecting rod 20. Taking the case where the connecting rod 20 is a U-shaped groove structure and the second end of the support member 40 is located in the groove of the connecting rod 20 as an example, the following methods can be adopted: the first through hole is circular, the cross-sectional shape and size of the two ends of the rotating shaft 41 match the first through hole, the cross-sectional shape of the middle section of the rotating shaft 41 is a triangle, a quadrilateral, other polygons, an ellipse or an irregular shape, etc., and the second through hole matches the cross-sectional shape of the middle section of the rotating shaft 41. Alternatively, the cross-sectional shape of the two ends of the rotating shaft 41 is the same as that of the middle section, and the two ends are respectively installed in the two first through holes through bearings.

[0045] The fixing member 50 can be fixedly connected to the support member 40 by being fixedly connected to the rotating shaft 41 . For example, a through hole matching the rotating shaft 41 can be opened on the fixing member 50 so that the rotating shaft 41 is fixedly connected to the through hole.

[0046] Furthermore, the folding mechanism also includes a rotary drive mechanism, and its rotating section is transmission-connected with the rotating shaft 41. The operator can directly apply a force to the rotating shaft 41 by operating the rotary drive mechanism, thereby driving the folding mechanism to unfold. Specifically, the rotary drive mechanism can adopt a rotary motor with a locking function, which can keep the folding mechanism in the unfolded state, and maintain the product 001 installed on the fixing member 50 at a fixed position or a fixed angle, thereby increasing the application scenarios of the utility model. Taking the TV as an example, the TV is fixed to the ceiling by the folding mechanism, and the folding mechanism is in a folded state when not in use. When in use, the folding mechanism is unfolded by the rotary drive mechanism, the angle of the TV screen is rotated 90 degrees and locked, and the folding mechanism is restored to the folded state by the rotary drive mechanism after use.

[0047] In some embodiments, the fixing member 50 is a U-shaped groove structure and is in a straight line with the support member 40. The width of the connecting rod 20 matches the width of the slot of the fixing member 50. The second connection point 22 is located at the first end of the connecting rod 20, and the first end of the connecting rod 20 is located in the slot of the fixing member 50. Both sides of the first end of the connecting rod 20 are respectively hinged to the two side walls of the fixing member 50 at the second connection point 22. The fixing member 50 and the support member 40 are in a straight line. When the support member 40 and the connecting rod 20 are in a folded state, the fixing member 50 and the connecting rod 20 are also in a folded state. At this time, the connecting rod 20 can be accommodated in the fixing member 50, which can save space.

[0048] It should be noted that the fixing member 50 and the supporting member 40 are not necessarily in a straight line, and a certain angle may be formed between the two, which depends on the normal use state of the product 001 installed on the fixing member 50. For example, if the base 10 is installed on a vertical wall, and the product 001 needs to maintain a certain angle with the wall in the normal use state, the fixing member 50 and the supporting member 40 will maintain a certain angle.

[0049] In some embodiments, the elastic member 30 is a compression spring located at a side of the first connection point 21 away from the first end of the connecting rod 20. With the first connection point 21 as a fulcrum, a pressure is continuously provided to make the first end of the connecting rod 20 toward the base 10.

[0050] It is understandable that the elastic member 30 can also be a tension spring or other device capable of providing tension. In this case, it should be arranged on the side of the first connection point 21 close to the first end of the connecting rod 20, and can also continuously provide pressure to make the first end of the connecting rod 20 toward the base 10.

[0051] In some embodiments, the first end of the support member 40 has a curved surface. When the support member 40 rotates, the curved surface abuts against the base 10 or the mounting platform and slides on the surface of the base 10 or the mounting platform, which can make the unfolding action of the folding mechanism smoother and improve the operating experience.

[0052] Furthermore, the support member 40 is an elliptical sheet structure, and the first end and the second end thereof are respectively the locations of the two intersection points of the major axis of the ellipse and its edge.

[0053] Furthermore, when the connecting rod 20 adopts a U-shaped groove structure, the second end of the elliptical support member 40 is located in the groove of the connecting rod 20, and the length of the short axis of the support member 40 matches the distance between the base 10 or the surface of the mounting platform and the bottom of the groove of the connecting rod 20 when in a folded state. That is, when the folding mechanism is in a folded state, the surface where the short axis of the support member 40 and its edge intersect is in contact with the base 10 or the surface of the mounting platform. In the process of gradual unfolding of the folding mechanism, the contact point between the support member 40 and the base 10 or the surface of the mounting platform gradually transitions to the first end of the support member 40 along the arc of the ellipse. This can make the unfolding process of the folding mechanism more linear, further improving the operating experience.

[0054] In some embodiments, the base 10 is also a U-shaped groove structure, and the groove of the base 10 is facing the direction of the connecting rod 20. When the support member 40 rotates, its first end is located in the groove of the base 10, which can ensure that the first end of the support member 40 will not fall out of the base 10 during the unfolding process of the folding mechanism, thereby improving the stability of the unfolding action of the folding mechanism.

[0055] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A folding mechanism, characterized in that: include: A base (10) for fixing the folding mechanism on a mounting platform; A connecting rod (20) is rotatably connected to the base (10), with the connection point serving as a first connection point (21), and a first end of the connecting rod (20) being capable of rotating around the first connection point (21) in a direction approaching or moving away from the base (10); an elastic member (30), a first end of which is fixedly connected to the base (10), and a second end of which is fixedly connected to the connecting rod (20), and is capable of providing a force for the first end of the connecting rod (20) in a direction toward the base (10); A support member (40) is rotatably connected to the connecting rod (20), with the connection point serving as a second connection point (22), and a first end of the support member (40) is capable of rotating around the second connection point (22) in a direction approaching or moving away from the connecting rod (20); when the support member (40) rotates, the first end of the support member (40) abuts against the base (10) or the mounting platform, and is capable of sliding on the surface of the base (10) or the mounting platform; The fixing member (50) is fixedly connected or transmission-connected to the supporting member (40).

2. The folding mechanism according to claim 1, characterized in that: The connecting rod (20) is a U-shaped groove structure, the base (10) is an elongated strip, and the width of the base (10) matches the width of the slot of the connecting rod (20); one end of the base (10) is located in the slot of the connecting rod (20), and the two sides of one end of the base (10) are respectively hinged to the two side walls of the connecting rod (20) at the first connection point (21).

3. The folding mechanism according to claim 2, characterized in that: The second end of the support member (40) is located in the notch of the connecting rod (20).

4. The folding mechanism according to claim 1, characterized in that: The connecting rod (20) and the supporting member (40) are respectively provided with a first through hole and a second through hole at the second connection point (22); the folding mechanism further comprises a rotating shaft (41); the rotating shaft (41) passes through the first through hole and the second through hole, is rotatably connected to the connecting rod (20), and is fixedly connected to the supporting member (40).

5. The folding mechanism according to claim 4, characterized in that: It also comprises a rotary drive mechanism, the rotary end of which is in driving connection with the rotary shaft (41).

6. The folding mechanism according to claim 1, characterized in that: The fixing member (50) is a U-shaped groove structure, and the width of the connecting rod (20) matches the width of the groove of the fixing member (50); the second connection point (22) is located at the first end of the connecting rod (20), and the first end of the connecting rod (20) is located in the groove of the fixing member (50).

7. The folding mechanism according to claim 1, characterized in that: The elastic member (30) is a compression spring and is located on a side of the first connection point (21) away from the first end of the connecting rod (20).

8. The folding mechanism according to claim 1, characterized in that: The first end of the support member (40) has a curved surface.

9. The folding mechanism according to claim 8, characterized in that: The support member (40) is an elliptical sheet structure.

10. The folding mechanism according to claim 1, characterized in that: The base (10) is a U-shaped groove structure, and the groove of the base (10) faces the direction of the connecting rod (20); when the support member (40) rotates, its first end is located in the groove of the base (10).

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