Foldable support and guitar stand

Abstract

The utility model provides a kind of foldable support frame and guitar stand, including main pipe, support seat and at least three foot pipes;The lower end of main pipe is connected on support seat, and support seat includes base and protruding shaft joint part distributed on the outer periphery of base;The upper end of foot pipe is shafted on protruding shaft joint part;The upper end of foot pipe has a slot in the middle, and two connecting ears are formed on both sides;Two connecting ears are rotatably connected with the two sides of protruding shaft joint part;Tooth part is provided on the leading edge of protruding shaft joint part;Tooth part includes a plurality of longitudinally arranged grooves and tooth structures distributed at intervals;A movable body is provided in the slot, the movable body is provided with a sharp end, the sharp end of movable body is away from groove, and foot pipe can be rotated;The sharp end of movable body extends into different grooves to fix the support angle of adjusted foot pipe.

Description

Technical Field

[0001] This utility model relates to a musical instrument stand, and more particularly to a foldable support frame in a musical instrument stand; the support frame can be folded for storage, reducing its volume. Background Technology

[0002] Currently, guitar stands, as a key tool for storing and displaying guitars, come in a variety of designs to meet the needs of different users and usage scenarios.

[0003] Traditional U-shaped guitar stands are widely available in the market due to their simple structure, but they pose a safety hazard as guitars can easily fall out due to collisions. Manual locking guitar stands improve safety by adding locking straps, but are limited by inconvenient operation and the ease with which the locking straps can be damaged.

[0004] In contrast, guitar stands with self-locking functions are more popular. For example, the patent with publication number CN101276579A (application number 200810062363.2) discloses a "self-locking upper support fork" design for a guitar stand. This design achieves the self-locking function of the bracket through mechanical structures such as the base, "Y"-shaped fork, movable rod, return spring and locking block, which effectively prevents the guitar from falling out due to accidental collisions and significantly improves the safety and convenience of guitar storage.

[0005] Existing folding guitar stands typically consist of a connecting base, three foldable support legs, and a support rod, a design that facilitates carrying and storage. However, these support legs often only allow for switching between fully folded and fully unfolded states, lacking the ability to flexibly adjust to the actual size of the guitar. This limitation means that the guitar stand may not provide stable support when placing guitars of different sizes or weights, thus affecting the safety and convenience of use. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a foldable support frame and guitar stand.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a foldable support frame, including a main tube, a support base and at least three leg tubes; the lower end of the main tube is connected to the support base, the support base includes a base and protruding shaft joints distributed on the outer periphery of the base; the upper end of the leg tube is shafted to the protruding shaft joints. The upper end of the foot tube has a slot in the middle and two connecting ears on both sides; the two connecting ears are rotatably connected to the two sides of the protruding shaft joint. The leading edge of the protruding shaft connection is provided with teeth; the teeth include a plurality of longitudinally arranged grooves and tooth structures spaced apart; A movable body is provided in the slot. The movable body has a pointed tip. The pointed tip of the movable body leaves the groove, and the foot tube can be rotated. The pointed tip of the movable body extends into different grooves to fix the support angle of the foot tube after adjustment.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: the base is provided with a central hole; the lower end of the main tube is inserted into the central hole.

[0009] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: the front edge of the protruding shaft connection is arc-shaped, each of the teeth extends laterally, and the teeth are arranged side by side along the front edge; the movable body is connected to the foot tube by an elastic element, the foot tube rotates, and the movable body switches between different grooves.

[0010] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: when the movable body moves to the preset position, the tip disengages from the tooth, and the foot tube has rotational freedom and can be folded and close to the base of the support seat.

[0011] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a fixed frame is provided in the slot, and a connecting shaft is provided on the fixed frame; The movable body includes a button plate and a pivot part, the pivot part is provided with a waist-shaped groove, and the connecting shaft passes through the waist-shaped groove; A torsion spring, serving as an elastic element, is provided between the connecting shaft and the movable body; when the connecting shaft moves to the first position of the waist-shaped groove, the movable body disengages from the toothed portion, and the foot tube is in a freely foldable state. The connecting shaft moves to the second position of the waist-shaped groove, and the movable body approaches the tooth and engages with the tooth.

[0012] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: the protruding shaft connection includes a first arc portion located on the upper side of the tooth portion, and the first arc portion starts from the top position of the upper tooth structure; A first recess is formed at the connection between the root of the first arc portion and the base portion. When the leg tube is flipped upward and folded close to the main tube, the tip enters the first recess along the first arc portion.

[0013] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: the protruding shaft connection includes a second arc portion located on the lower side of the tooth portion, and the second arc portion starts from the concave position of the lower end tooth structure; A second recess is formed at the connection between the root of the second arc portion and the adjacent tooth structure. When the foot tube is flipped downwards and folded close to the base tube, the tip is subjected to the second recess.

[0014] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: the keypad includes, from top to bottom, a first inclined surface, a second inclined surface, a third inclined surface and a fourth inclined surface; The upper end of the first inclined surface and the upper end of the inner surface of the movable body form a sharp point; The lower end of the first inclined surface and the upper end of the second inclined surface are connected to form a concave portion; The lower end of the second inclined surface and the upper end of the third inclined surface are connected to form a protrusion.

[0015] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a guitar stand, including a main tube, a support base and at least three legs; the lower end of the main tube is connected to the support base, the support base includes a base for supporting the guitar and protruding shaft joints distributed on the outer periphery of the base; the upper end of the legs is shafted to the protruding shaft joints. The upper end of the foot tube has a slot in the middle and two connecting ears on both sides; the two connecting ears are rotatably connected to the two sides of the protruding shaft joint. The leading edge of the protruding shaft connection is provided with teeth; the teeth include a plurality of longitudinally arranged grooves and tooth structures spaced apart; A fixed frame is provided in the slot, and a connecting shaft is provided on the fixed frame; a movable body is rotatably provided on the connecting shaft via a torsion spring; The movable body includes a button plate portion and a pivot portion. The pivot portion is provided with an oblong groove, and the connecting shaft passes through the oblong groove. The front edge of the protruding shaft portion is provided with teeth. The teeth include a plurality of longitudinally arranged grooves and tooth structures that are spaced apart. The button plate portion is provided with a tip that mates with the teeth. A torsion spring, serving as an elastic element, is provided between the connecting shaft and the movable body; when the connecting shaft moves to the first position of the waist-shaped groove, the tip of the movable body disengages from the toothed portion, and the foot tube is in a freely foldable state; The connecting shaft moves to the second position of the waist-shaped groove, the movable body approaches the tooth, and the tip engages with the tooth to fix the adjusted support angle of the foot tube.

[0016] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: the protruding shaft connection includes a first arc portion located on the upper side of the tooth portion, and the first arc portion starts from the top position of the upper tooth structure; A first recess is formed at the connection between the root of the first arc portion and the base portion. When the leg tube is flipped upward and folded close to the main tube, the tip enters the first recess along the first arc portion. The protruding shaft connection includes a second arc portion located below the tooth portion, the second arc portion starting from the recess of the lower end tooth structure; A second recess is formed at the connection between the root of the second arc portion and the adjacent tooth structure. When the foot tube is flipped downwards and folded close to the base tube, the tip is restricted by the second recess.

[0017] Compared with the prior art, the advantages of this utility model are: the user applies external force to disengage the tip from the groove, then rotates the foot tube to the target angle and releases it. The tip then snaps into the corresponding groove to complete the fixation. Through the cooperation of the movable body and the teeth, the user can quickly adjust the foot tube support angle to adapt to the usage needs of different supports and different terrains. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 Diagram showing the foldable support frame in use as a guitar stand; Figure 2 A three-dimensional schematic diagram of a foldable support frame with an adjustable support angle when the connecting shaft is in the second position; Figure 3 for Figure 2 A partially enlarged schematic diagram of point A on the foldable support frame; Figure 4 A three-dimensional schematic diagram of a foldable support frame in which the legs can be folded freely when the connecting shaft is in the first position; Figure 5 for Figure 4 Enlarged view of part B of the foldable support frame; Figure 6 This is an exploded view of the support state of the foldable support frame; Figure 7 for Figure 6 A partially enlarged schematic diagram of point C on the foldable support frame; Figure 8 A three-dimensional schematic diagram of the foldable support frame in its folded state; Figure 9 This is an exploded view of the folded state of the foldable support frame; Figure 10 This is a cross-sectional view of the folded support frame. Figure 11 for Figure 10 Enlarged view of part D of the foldable support frame; Figure 12An exploded view of the key components of the foldable support frame. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0021] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Similarly, "first" and "second" are only for ease of understanding and have no other directional meaning, and cannot be considered as limitations on this utility model.

[0023] like Figure 1-7 As shown, this embodiment provides a foldable support frame 100, which can be a guitar stand. It is used to support a guitar 200 and includes a main tube 1, a support base 2, and at least three legs 3. The lower end of the main tube 1 is connected to the support base 2, which includes a base 4 and protruding shaft connections 5 distributed around the outer periphery of the base 4. The upper ends of the legs 3 are shafted to the protruding shaft connections 5.

[0024] like Figure 7 , 11 As shown, the upper end of the leg tube 3 has a slot 6 in the middle and two connecting ears 7 on both sides. The two connecting ears 7 are rotatably connected to both sides of the protruding shaft connection 5. The front edge of the protruding shaft connection 5 is provided with teeth 8. The teeth 8 include multiple longitudinally arranged grooves 81 and tooth structures 82 spaced apart. A movable body 9 is provided in the slot 6. The movable body 9 has a tip 90. When the tip 90 of the movable body 9 leaves the groove 81, the leg tube 3 can be rotated. The tip 90 of the movable body 9 extends into different grooves 81 to fix the support angle of the adjusted leg tube 3.

[0025] like Figure 1-11As shown, the leg tube 3 achieves rotational freedom through the connection between the connecting ear 7 and the protruding shaft joint 5. The movable body 9, under normal conditions, forces the tip 90 to engage with the groove 81 of the toothed part 8 via elastic force, thus restricting the rotation of the leg tube 3. When the user applies external force to disengage the tip 90 from the groove 81, the leg tube 3 can be rotated to the target angle and then released, at which point the tip 90 automatically engages with the corresponding groove 81 to complete the fixation. Through the cooperation of the movable body 9 and the toothed part 8, the user can quickly adjust the support angle of the leg tube 3 to adapt to different supports and terrains.

[0026] When used as a guitar stand, a support area is provided above the base 4 to support the bottom of the guitar, while the upper part of the guitar rests against the main tube 1 and is clamped and fixed by the clamping part 18 on the main tube 1.

[0027] like Figure 3 , 5 As shown in Figures 7, 9, and 12, the leading edge of the protruding shaft connection 5 is arc-shaped, and each tooth 8 extends laterally, with the teeth 8 arranged longitudinally side by side along the leading edge. The movable body 9 is connected to the foot tube 3 by an elastic element. When the foot tube 3 rotates, the tip 90 of the movable body 9 slides along the arc surface, and the elastic element provides continuous pressure, causing the tip 90 to switch between the grooves 81 in a jumping manner.

[0028] like Figure 4 , 5 As shown in Figures 8-11, when the movable body 9 moves to the preset position, the tip 90 disengages from the tooth 8, and the leg tube 3 can be folded freely and close to the base 4.

[0029] It should be noted that the movable body 9 can only disengage from the teeth 8 when it is in a specific position to prevent accidental folding during use. The transverse distribution of the teeth 8 ensures that each groove 81 corresponds to a specific angle, enabling adjustable settings. The arc surface and transverse tooth design allow the movable body 9 to naturally slide over the tooth structure 82 during rotation, reducing frictional loss. The elastic element automatically pushes the movable body 9 to engage with the teeth 8, locking the angle without manual intervention.

[0030] like Figure 7 , 12 As shown, a fixed frame 11 is provided in the slot 6, and a connecting shaft 12 is provided on the fixed frame 11. The movable body 9 is rotatably mounted on the connecting shaft 12 by a torsion spring 13. The movable body 9 includes a button plate portion 91 and a pivot portion 92. The pivot portion 92 is provided with an oblong groove 920, and the connecting shaft 12 passes through the oblong groove 920. The button plate portion 91 is provided with a pointed tip 90 that mates with the toothed portion 8.

[0031] like Figure 4 , 5 As shown in Figures 8-12, the connecting shaft 12 moves to the first position of the waist-shaped groove 920, the tip 90 of the movable body 9 disengages from the tooth 8, and the foot tube 3 is in a freely foldable state.

[0032] like Figure 2 , 3 As shown in Figure 12, the connecting shaft 12 moves to the second position of the waist-shaped groove 920, the movable body 9 approaches the tooth 8, and the tip 90 engages with the tooth 8 to fix the support angle of the adjusted foot tube 3.

[0033] The user presses the button panel 91 to overcome the force of the torsion spring 13, causing the waist-shaped groove 920 to move relative to the connecting shaft 12, thus switching states. The waist-shaped groove 920 allows for both a free, effortless folding and unfolding section and a more strenuous damping section. The free section is for storage, while the damping section is for adjusting the support state.

[0034] like Figure 7 , 12 As shown, the fixing frame 11 includes a base plate 110 and a support arm 111 located on the base plate. The support arm 11 is inclinedly disposed on the base plate 110, and the base plate 110 is fixedly connected to the end wall of the foot tube 3. The fixing frame 11 provides a position for connecting the movable body 9, while also providing sufficient space for the movable body 9 to engage with the toothed part 8 and for the movable body 9 to switch positions with the waist-shaped groove 920, thus providing space for the movable body 9 to move up and down and rotate.

[0035] like Figure 2-9 As shown, the base 4 has a central hole 41. The lower end of the main pipe 1 is inserted into the central hole 41. This insertion structure simplifies the connection between the main pipe 1 and the support base 2, facilitating production assembly and user-replacement of components.

[0036] like Figure 5 , 9 As shown in Figures 1 and 12, the protruding shaft connection portion 5 includes a first arc portion 83 located on the upper side of the tooth portion 8, the first arc portion 83 starting from the top position of the upper end tooth structure 82.

[0037] A first recessed position 84 is formed at the connection between the root of the first arc portion 83 and the base portion 4. When the leg tube 3 is flipped upward and folded close to the main tube 1, the tip 90 enters the first recessed position 84 along the first arc portion 83.

[0038] like Figure 5 , 9 As shown in Figures 1 and 12, the protruding shaft connection portion 5 includes a second arc portion 85 located below the tooth portion 8, the second arc portion 85 starting from the recess of the lower end tooth structure 82.

[0039] The second recess 86 is formed at the connection between the root of the second arc portion 85 and the adjacent tooth structure 82. When the foot tube 3 is flipped downward and folded close to the base tube 1, the tip 90 is restricted by the second recess 86.

[0040] When folded upwards, the tip 90 slides along the first arc portion 83 into the first recess 84; when folded downwards, it slides along the second arc portion 85 into the second recess 86. The recesses mechanically limit the tip 90, requiring additional external force to release it, thus preventing accidental unfolding during transportation.

[0041] like Figure 12 As shown, the button plate portion 91 includes, from top to bottom, a first inclined surface 91a, a second inclined surface 91b, a third inclined surface 91c, and a fourth inclined surface 91d. The upper end of the first inclined surface 91a and the upper end of the inner side surface of the movable body 9 form a tip 90. The lower end of the first inclined surface 91a and the upper end of the second inclined surface 91b connect to form a concave portion n. The lower end of the second inclined surface 91b and the upper end of the third inclined surface 91c connect to form a protruding portion m. This concave-convex inclined surface design conforms to the finger pressing curve, providing a comfortable touch and anti-slip properties. Moreover, the concave portion and the protruding portion enhance the rigidity of the button plate portion 91, preventing deformation from repeated pressing.

[0042] This paper introduces the foldable support frame and guitar stand provided by this utility model. Specific examples are used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A foldable support frame, characterized in that: It includes a main tube, a support base, and at least three leg tubes; the lower end of the main tube is connected to the support base, the support base includes a base and protruding shaft joints distributed on the outer periphery of the base; the upper end of the leg tube is shafted to the protruding shaft joints. The upper end of the foot tube has a slot in the middle and two connecting ears on both sides; the two connecting ears are rotatably connected to both sides of the protruding shaft joint. The front edge of the protruding shaft connection is provided with teeth; the teeth include a plurality of longitudinally arranged grooves and tooth structures spaced apart; A movable body is provided in the slot. The movable body has a pointed tip. The pointed tip of the movable body leaves the groove, and the foot tube can be rotated. The pointed tip of the movable body extends into different grooves to fix the support angle of the foot tube after adjustment.

2. The foldable support frame according to claim 1, characterized in that: The base is provided with a central hole; the lower end of the main tube is inserted into the central hole.

3. A foldable support frame according to claim 1, characterized in that: The leading edge of the protruding shaft joint is arc-shaped, and each of the teeth extends laterally, with each tooth arranged side by side along the leading edge; the movable body is connected to the foot tube by an elastic element, and when the foot tube rotates, the movable body switches between different grooves.

4. A foldable support frame according to claim 1, characterized in that: When the movable body moves to the preset position, the tip disengages from the teeth, and the leg tube has rotational freedom and can be folded and close to the base of the support.

5. A foldable support frame according to claim 3, characterized in that: A fixing frame is provided in the slot, and a connecting shaft is provided on the fixing frame; The movable body includes a button plate and a pivot part, the pivot part is provided with a waist-shaped groove, and the connecting shaft passes through the waist-shaped groove; A torsion spring, serving as an elastic element, is provided between the connecting shaft and the movable body; when the connecting shaft moves to the first position of the waist-shaped groove, the movable body disengages from the toothed portion, and the foot tube is in a freely foldable state. The connecting shaft moves to the second position of the waist-shaped groove, and the movable body approaches the tooth and engages with the tooth.

6. A foldable support frame according to claim 5, characterized in that: The protruding shaft connection includes a first arc portion located on the upper side of the tooth portion, the first arc portion starting from the top of the upper tooth structure; A first recess is formed at the connection between the root of the first arc portion and the base portion. When the leg tube is flipped upward and folded close to the main tube, the tip enters the first recess along the first arc portion.

7. A foldable support frame according to claim 5, characterized in that: The protruding shaft connection includes a second arc portion located below the tooth portion, the second arc portion starting from the recess of the lower end tooth structure; A second recess is formed at the connection between the root of the second arc portion and the adjacent tooth structure. When the foot tube is flipped downwards and folded close to the base tube, the tip is subjected to the second recess.

8. A foldable support frame according to claim 5, characterized in that: The button panel includes, from top to bottom, a first inclined surface, a second inclined surface, a third inclined surface, and a fourth inclined surface; The upper end of the first inclined surface and the upper end of the inner surface of the movable body form a sharp point; The lower end of the first inclined surface and the upper end of the second inclined surface are connected to form a concave portion; The lower end of the second inclined surface and the upper end of the third inclined surface are connected to form a protrusion.

9. A guitar stand, characterized by: It includes a main tube, a support base, and at least three legs; the lower end of the main tube is connected to the support base, which includes a base for supporting the guitar and protruding shaft joints distributed around the outer periphery of the base; the upper ends of the legs are shafted to the protruding shaft joints. The upper end of the foot tube has a slot in the middle and two connecting ears on both sides; the two connecting ears are rotatably connected to both sides of the protruding shaft joint. The front edge of the protruding shaft connection is provided with teeth; the teeth include a plurality of longitudinally arranged grooves and tooth structures spaced apart; A fixed frame is provided in the slot, and a connecting shaft is provided on the fixed frame; a movable body is rotatably provided on the connecting shaft via a torsion spring; The movable body includes a button plate portion and a pivot portion. The pivot portion is provided with an oblong groove, and the connecting shaft passes through the oblong groove. The front edge of the protruding shaft portion is provided with teeth. The teeth include a plurality of longitudinally arranged grooves and tooth structures that are spaced apart. The button plate portion is provided with a tip that mates with the teeth. A torsion spring, serving as an elastic element, is provided between the connecting shaft and the movable body; when the connecting shaft moves to the first position of the waist-shaped groove, the tip of the movable body disengages from the toothed portion, and the foot tube is in a freely foldable state; The connecting shaft moves to the second position of the waist-shaped groove, the movable body approaches the tooth, and the tip engages with the tooth to fix the adjusted support angle of the foot tube.

10. A guitar stand according to claim 9, characterized in that: The protruding shaft connection includes a first arc portion located on the upper side of the tooth portion, the first arc portion starting from the top of the upper tooth structure; A first recess is formed at the connection between the root of the first arc portion and the base portion. When the leg tube is flipped upward and folded close to the main tube, the tip enters the first recess along the first arc portion. The protruding shaft connection includes a second arc portion located below the tooth portion, the second arc portion starting from the recess of the lower end tooth structure; A second recess is formed at the connection between the root of the second arc portion and the adjacent tooth structure. When the foot tube is flipped downwards and folded close to the base tube, the tip is restricted by the second recess.

Images