CN109949782B - Crossed shaft type support for supporting musical instrument and using method thereof - Google Patents
Crossed shaft type support for supporting musical instrument and using method thereof Download PDFInfo
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- CN109949782B CN109949782B CN201910283255.6A CN201910283255A CN109949782B CN 109949782 B CN109949782 B CN 109949782B CN 201910283255 A CN201910283255 A CN 201910283255A CN 109949782 B CN109949782 B CN 109949782B
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Abstract
The invention relates to the field of musical instrument supports, in particular to a crossed shaft type support for supporting a musical instrument and a using method thereof. The cross shaft type support for supporting the musical instrument and the using method thereof have high safety and long service life in the automatic folding process of the support.
Description
Technical Field
The invention relates to the field of musical instrument supports, in particular to a crossed shaft type support for supporting musical instruments and a using method thereof.
Background
For the convenience of performance, the supporting parts of such musical instruments are usually foldable structures, wherein the cross-axis structure is the most common, for example: application No. 201410833540.8 discloses a folding musical instrument stand, which adopts a first support rod and a second support rod which are coupled with each other, a fixed disc is arranged on the second support rod, a spring is arranged in the fixed disc, the spring is exerted by mutual torsion of the first support rod and the second support rod and is light and portable, then the first support rod and the second support rod are fixed by a positioning device, so that the height adjustment of the musical instrument stand is realized, in the using process, the positioning device is loosened, the musical instrument stand is automatically folded by the resetting of the spring, in the structure, the first support rod and the second support rod are mutually rotated by the resetting of the spring and are jointed and folded, the mutual approaching speed of the first support rod and the second support rod in the folding process is faster and until the first support rod and the second support rod are jointed by collision, the first support rod and the second support rod are easy to bounce, clamp or touch personnel, so as to cause injury to the personnel, the elasticity of the spring is weakened along with the using time, the automatic folding property is weakened, the service life is not longer, and therefore, a shaft type support stand for supporting musical instrument is provided, and a using method thereof.
Disclosure of Invention
The present invention is directed to a cross-axis stand for supporting a musical instrument and a method of using the same to solve the above-mentioned problems of the prior art. In order to achieve the purpose, the invention provides the following technical scheme: a cross shaft type support for supporting a musical instrument and a using method thereof comprise a first support rod, a second support rod, a base and a support plate, wherein the base is parallel to the support plate, different surfaces of the first support rod and the second support rod are parallel, a lantern ring is arranged between the first support rod and the second support rod, the lantern ring is positioned between the base and the support plate and is respectively connected with the base and the support plate through a speed limiting device, a first turntable is fixed in the middle of the first support rod, the upper end and the lower end of the first support rod are respectively connected onto the support plate and the base in a sliding mode, a second turntable is fixed in the middle of the second support rod, the upper end and the lower end of the second support rod are respectively connected onto the support plate and the base in a sliding mode, the first turntable and the second turntable are respectively connected to the inner sides of two port positions of the lantern ring in a coaxial sliding mode, and a locking mechanism for locking the first support rod and the second support rod is arranged between the first turntable and the second turntable.
Preferably, the central axis of the speed limiting device is perpendicular to the supporting plate and the base, the speed limiting device is formed by coaxially sleeving a plurality of telescopic sleeves with different diameters according to the size sequence of the diameters, the two adjacent telescopic sleeves can slide relative to each other, the end part of the telescopic sleeve with the minimum diameter is fixedly connected with the lantern ring, and the end part of the telescopic sleeve with the maximum diameter is fixedly connected with the corresponding supporting plate or base.
Preferably, the exhaust hole has been seted up on the telescopic sleeve's that the diameter is the biggest lateral wall, and the position department that corresponds the exhaust hole on telescopic sleeve's the inner wall articulates there is the baffle, and the baffle is not less than two-thirds of exhaust hole opening area to sheltering from of exhaust hole, is not more than the three-quarters of exhaust hole opening area.
Preferably, the upper surface of the base is fixed with two first slide rails which are parallel to each other, the lower ends of the first supporting rod and the second supporting rod are hinged to be connected with first slide blocks, and the first slide blocks are connected to the corresponding first slide rails through the first slide blocks in a sliding mode respectively.
Preferably, the lower surface of the supporting plate is fixed with two second sliding rails which are parallel to each other, a balancing weight is arranged inside the supporting plate, the upper end of the first supporting rod and the upper end of the second supporting rod are hinged to be connected with second sliding blocks respectively, the second sliding blocks are connected to the corresponding second sliding rails in a sliding mode through the second sliding blocks, and the cross sections of the first sliding rails and the second sliding rails are both in a dovetail shape.
Preferably, the first rotating disc and the second rotating disc are identical in structure, an inner lining is uniformly fixed at the edge of one opposite side, the inner lining is coaxially and rotatably connected inside the lantern ring, and teeth are arranged on the inner side face of the inner lining along the circumferential direction.
Preferably, the locking mechanism comprises a cantilever fixed on the second turntable, the cantilever is perpendicular to the inner side end face of the second turntable, a guide sleeve is fixed at one end, pointing to the first turntable, of the cantilever, the central axis of the guide sleeve is on the symmetrical surfaces of the first turntable and the second turntable, a push rod is inserted into the guide sleeve in a sliding mode, a fixture block is fixed at one end, pointing to the inner side wall of the inner bushing, of the push rod, and teeth meshed with teeth on the inner side face of the inner bushing are arranged on one face, facing the inner side wall of the inner bushing, of the fixture block.
Preferably, the locking mechanism further comprises a pull rod, the pull rod is inserted in the center of the first rotary table in a sliding mode and exposed to the outer side of the first supporting rod, one end, pointing to the second rotary table, of the pull rod is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to one end, far away from the clamping block, of the ejector rod.
Preferably, the width of the fixture block along the axial direction of the inner bushing is larger than the axial height of the inner bushing, the connecting rod is perpendicular to the pull rod when the fixture block is meshed with the inner bushing, and the damping ring is sleeved at the joint of the pull rod, the first rotating disc and the first supporting rod.
A method of using a cross-axis stand for supporting a musical instrument, comprising the steps of:
the method comprises the following steps: the locking mechanism is used for unlocking the first rotary disc and the second rotary disc, so that the first rotary disc and the second rotary disc can rotate relatively;
step two: the first supporting rod and the second supporting rod tend to be vertical or horizontal by applying force to the supporting plate, so that the height of the supporting plate is adjusted;
step three: when the support is folded, the first rotating disc and the second rotating disc are unlocked through the locking mechanism, automatic folding is performed by utilizing the dead weight of the supporting plate, in the process, the speed limiting device plays a role in limiting the falling speed of the supporting plate, and the falling speed of the supporting plate is prevented from being too fast.
Compared with the prior art, the invention has the beneficial effects that:
in the folding and accommodating process of the support, the folding driving force is applied by using the self weight of the support plate, and the speed limiting device has the function of limiting the falling speed of the support plate, so that the support plate is prevented from falling too fast, the buffering function is realized, the safety is improved, and people or objects around the support are protected;
in the invention, the bracket does not need to use flexible deformation components such as a spring and the like, so the service life is longer.
Drawings
FIG. 1 is a schematic view of the final assembly structure in a supported state according to the present invention;
FIG. 2 is a schematic view of the overall assembly structure of the invention in a folded state;
FIG. 3 isbase:Sub>A schematic view of the cross-sectional structure A-A of FIG. 1;
FIG. 4 is a schematic illustration of the locking mechanism of the present invention in a locked condition;
FIG. 5 is a schematic view of the release state of the locking mechanism of the present invention;
FIG. 6 is an axial view of the inner structure of a second turntable according to the present invention;
FIG. 7 is a schematic cross-sectional view of a governor device of the present invention;
fig. 8 is an enlarged schematic view of a structure at B in fig. 7.
In the figure: 1-a base; 2-a support plate; 3-a first slide rail; 4-a second slide rail; 5-a collar; 6-a first strut; 7-a second strut; 8-a speed limiting device; 81-telescoping sleeve; 82-air outlet holes; 83-a baffle; 9-a first carousel; 10-a pull rod; 11-a first slider; 12-a second slide; 13-a second carousel; 14-a locking mechanism; 15-a connecting rod; 16-a mandril; 17-a cartridge; 18-a cantilever; 19-a guide sleeve; 20-inner lining.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by workers skilled in the art from the embodiments given herein without making creative efforts, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a cross shaft type support for supporting a musical instrument and a using method thereof comprise a first support rod 6, a second support rod 7, a base 1 and a support plate 2, wherein the base 1 is parallel to the support plate 2, the support plate 2 and the base 1 have the functions of improving a stable and unchangeable support surface under the condition that the first support rod 6 and the second support rod 7 are at any angle, so that the defect that the support surface is smaller as the support height is higher is avoided, the different surfaces of the first support rod 6 and the second support rod 7 are parallel, a lantern ring 5 is arranged between the first support rod 6 and the second support rod 7, the lantern ring 5 is positioned between the base 1 and the support plate 2 and is respectively connected with the base 1 and the support plate 2 through a speed limiting device 8, a first rotary disc 9 is fixed in the middle of the first support rod 6, the upper end and the lower end of the first support rod 6 are respectively connected onto the support plate 2 and the base 1 in a sliding mode, a second rotary disc 13 is fixed in the middle of the second support rod 7, the upper end and the lower end of the second support rod 7 are respectively connected onto the support plate 2 and the base 1, the first rotary disc 9 and the second rotary disc 13 are respectively connected on the inner side of the lantern ring 5 in a coaxial sliding mode, and a locking mechanism 14 is arranged between the first rotary disc 9 and the second support rod 7.
In this embodiment, the central axis of the speed limiting device 8 is perpendicular to the supporting plate 2 and the base 1, the speed limiting device 8 is formed by coaxially sleeving a plurality of telescopic sleeves 81 with different diameters in a size order of the diameters, two adjacent telescopic sleeves 81 can slide relative to each other, the end of the telescopic sleeve 81 with the smallest diameter is fixedly connected with the sleeve ring 5, and the end of the telescopic sleeve 81 with the largest diameter is fixedly connected with the corresponding supporting plate 2 or the base 1.
In this embodiment, exhaust hole 82 has been seted up on the lateral wall of the biggest telescopic sleeve 81 of diameter, the position department that corresponds exhaust hole 82 on telescopic sleeve 81's the inner wall articulates there is baffle 83, and baffle 83 is not less than two-thirds of exhaust hole 82 opening area to sheltering from of exhaust hole 82, be not more than three-quarters of exhaust hole 82 opening area, air outlet rate through injecing exhaust hole 82, the speed limit of the falling speed of realization to backup pad 2, the guarantee security, and in backup pad 2's the operation of increaseing, air inlet rate to exhaust hole 82 department increases, and the efficiency is improved.
In this embodiment, the upper surface of the base 1 is fixed with two first slide rails 3 parallel to each other, and the lower ends of the first support rod 6 and the second support rod 7 are both hinged to be connected with a first slide block 11, and are respectively connected to the corresponding first slide rails 3 through the first slide blocks 11 in a sliding manner.
In this embodiment, the lower fixed surface of backup pad 2 has two second slide rails 4 that are parallel to each other, and the inside of backup pad 2 is provided with the balancing weight, the effect of balancing weight is that the frictional resistance in whole support can be overcome to the dead weight of guaranteeing backup pad 2, make automatic folding to go on smoothly, the upper end of first branch 6 and the upper end of second branch 7 all articulate and are connected with second slider 12, and respectively through 12 sliding connection of second slider on the second slide rail 4 that corresponds, and the cross section of first slide rail 3 and second slide rail 4 is the dovetail.
In this embodiment, the first rotating disk 9 and the second rotating disk 13 have the same structure, and an inner bushing 20 is uniformly fixed at an edge of one of the opposite surfaces, the inner bushing 20 is coaxially and rotatably connected inside the sleeve ring 5, and teeth are formed on an inner side surface of the inner bushing 20 along a circumferential direction.
In this embodiment, the locking mechanism 14 includes a cantilever 18 fixed on the second rotating disk 13, the cantilever 18 is perpendicular to the inner side end surface of the second rotating disk 13, a guide sleeve 19 is fixed at one end of the cantilever 18 pointing to the first rotating disk 9, the central axis of the guide sleeve 19 is on the symmetrical surface of the first rotating disk 9 and the second rotating disk 13, a push rod 16 is inserted into the guide sleeve 19 in a sliding manner, a latch 17 is fixed at one end of the push rod 16 pointing to the inner side wall of the inner bushing 20, teeth engaged with the teeth on the inner side surface of the inner bushing 20 are formed on one surface of the latch 17 facing to the inner side wall of the inner bushing 20, the rotating directions of the first rotating disk 9 and the second rotating disk 13 are opposite, so that the rotation of the first rotating disk 9 and the second rotating disk 13 is limited by the latch 17 under the condition that the latch 17 is engaged with the two inner bushings 20, thereby locking the first rotating disk 9 and the second rotating disk 13.
In this embodiment, the locking mechanism 14 further includes a pull rod 10, the pull rod 10 is slidably inserted into the center of the first rotary disk 9 and is exposed to the outside of the first support rod 6, one end of the pull rod 10 pointing to the second rotary disk 13 is hinged to one end of a connecting rod 15, and the other end of the connecting rod 15 is hinged to one end of a support rod 16 far away from the fixture block 17.
In this embodiment, the width of the fixture block 17 along the axial direction of the inner bushing 20 is greater than the axial height of the inner bushing 20, so that the fixture block 17 can be engaged with both of the inner bushings 20, the connecting rod 15 is perpendicular to the pull rod 10 when the fixture block 17 is engaged with the inner bushings 20, and the pull rod 10 is used for adjusting the position of the fixture block 17, so that the locking and unlocking states of the locking mechanism 14 can be controlled to facilitate operation, and in the locking state, the connecting rod 15 is perpendicular to the pull rod 10, so that a dead point mechanism is formed, so that the stability of the locking mechanism 14 is improved, and a damping ring is sleeved at the connection part of the pull rod 10, the first rotating disc 9 and the first support rod 6, so that the stability of the pull rod 10 in the locking state is improved.
The invention also provides a cross shaft type bracket for supporting the musical instrument and a using method thereof, and the cross shaft type bracket comprises the following steps when in use:
the method comprises the following steps: unlocking of first and second rotating disks 9, 13 by unlocking mechanism 14: manually pulling out the pull rod 10 to enable the pull rod 10 to move towards the outer side of the sleeve ring 5, applying pulling force to the ejector rod 16 through the connecting rod 15 while the pull rod 10 moves outwards, enabling the ejector rod 16 to move towards the center of the sleeve ring 5 along the guide sleeve 19 after the ejector rod 16 receives the pulling force, enabling the ejector rod 16 to move to drive the fixture block 17 to move synchronously, enabling the fixture block 17 to be far away from the inner side face of the inner lining 20 and approach to the central axis of the inner lining 20 in the process until the fixture block 17 abuts against the guide sleeve 19, stopping pulling the pull rod 10, enabling the fixture block 17 to be not in contact with the inner lining 20 at the moment, and enabling the first rotary disc 9 and the second rotary disc 13 to rotate relatively;
step two: adjusting the supporting height of the bracket: after the locking mechanism 14 unlocks the first rotating disc 9 and the second rotating disc 13, an upward force is applied to the support plate 2 by hand, the support plate 2 is stressed to enable the two first sliders 11 to approach each other along the first guide rail 3, the two second sliders 12 approach each other along the second guide rail 4, namely, an angle a in fig. 1 is reduced, the angle a is reduced to enable the first support rod 6 and the second support rod 7 to tend to be vertical, namely, the support plate 2 is lifted, when the support plate 2 is lifted to a required height, the support plate 2 is kept to be fixed, the pull rod 10 is pressed towards the inner side of the collar 5, the pull rod 10 moves towards the inner side of the collar 5, the push rod 16 is applied with a thrust force to the push rod 16 through the connecting rod 15 while the pull rod 10 moves inwards, the push rod 16 moves towards the inner wall of the collar 5 along the guide sleeve 19 after being subjected to the thrust force, the movement of the push rod 16 drives the fixture block 17 to move synchronously, in the process, the fixture block 17 approaches the inner side face of the inner bushing 20 until teeth on the fixture 17 are meshed with teeth on the inner bushing 20, the inner side face of the fixture 17, the inner side of the inner bushing 20 stops pulling rod 10, and the rotation direction of the inner bushing 20 is opposite to enable the fixture 17 to be meshed with teeth on the inner bushing 20, even if the support plate 9 and the second rotating disc 13 can not be locked, the second rotating disc 13;
when the height of the support plate 2 needs to be adjusted to be low, the pull rod 10 is pulled out of the sleeve ring 5, the first rotary table 9 and the second rotary table 10 are unlocked, the support plate 2 is pressed downwards, the two first sliders 11 are far away from each other along the first guide rail 3 after the support plate 2 is stressed, the two second sliders 12 are far away from each other along the second guide rail 4, namely an angle a in the figure 1 is increased, the angle a is increased, so that the first supporting rod 6 and the second supporting rod 7 tend to be horizontal, namely the support plate 2 is lowered, after the support plate 2 is lowered to the required height, the support plate 2 is kept still, the pull rod 10 is pressed towards the inner side of the sleeve ring 5, the first rotary table 9 and the second rotary table 13 cannot rotate relatively, and the height adjustment of the support plate 2 is completed;
step three: folding and accommodating of the bracket: when the support is required to be folded after use, according to the step two, the pull rod 10 is pulled outwards, the first rotating disc 9 and the second rotating disc 13 are unlocked, so that the first rotating disc 9 and the second rotating disc 13 can rotate relatively, the first support 6 and the second support 7 are acted by the self-weight of the support plate 2, so that the two first sliders 11 are far away from each other along the first guide rail 3, the two second sliders 12 are far away from each other along the second guide rail 4, that is, the angle a in fig. 1 is increased, the angle a is increased, so that the first support 6 and the second support 7 tend to be horizontal, that is, the support plate 2 is lowered, in the process of lowering the support plate 2, as shown in fig. 1, fig. 2, fig. 7 and fig. 8, each telescopic sleeve 81 in the speed limiting device 8 contracts inwards to extrude air inside the telescopic sleeve to be discharged from the air discharging holes 82, under the action of the baffle 83, the discharging speed of the air discharging holes 82 is low, when the supporting plate 2 descends too fast, the pressure of the telescopic sleeve 81 is increased through the lantern ring 5, so that the pressure inside the telescopic sleeve 81 is increased, the air inside the telescopic sleeve 81 cannot be discharged through the air discharging holes 82 in time, according to Newton's third motion law, the high pressure inside the telescopic sleeve 81 exerts reverse acting force through the telescopic sleeve 81, so that the descending speed of the lantern ring 5 is limited, the falling speed limitation of the supporting plate 2 is realized, and the automatic folding of the support is completed until the supporting plate 2 falls to the lowest position;
in the process of heightening the supporting plate 2, the supporting plate 2 is far away from the base 1, each telescopic sleeve 81 in the speed limiting device 8 does outward extending movement, so that the space inside the speed limiting device 8 is enlarged, the internal pressure is lowered, external air enters from the exhaust hole 82, the baffle 83 rotates around the connecting shaft of the baffle 83 and the inner wall of the telescopic sleeve 81 to the inner side of the telescopic sleeve 81 under the action of air flow, the edge of the free end of the baffle 83 can be of a curled edge structure which is curled towards the inner side of the telescopic sleeve 81, therefore, the baffle 83 can better rotate around the shaft in the air intake process, the exhaust hole 82 is not shielded, the air inflow of the exhaust hole 82 is increased, the time length in the heightening process is reduced, and the efficiency is improved;
in the folding and accommodating process of the support, the dead weight of the support plate 2 is utilized to apply folding driving force, the speed limiting device 8 has the function of limiting the falling speed of the support plate 2, the support plate 2 is prevented from falling too fast, the buffering function is realized, the safety is improved, and people or objects around the support are protected;
when the height of the lifting plate 2 is adjusted down in the step two, extra force does not need to be applied to the supporting plate 2, and the height adjustment of the supporting plate 2 can be completed, although the height adjustment is not as efficient as the height adjustment, the safety is important, and meanwhile, the safety accident is caused and the risk is reduced under the emergency conditions that the locking mechanism 14 is invalid and the like.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A cross-axis stand for supporting a musical instrument comprising a first strut (6) and a second strut (7), characterized in that: the device is characterized by further comprising a base (1) and a supporting plate (2), wherein the base (1) is parallel to the supporting plate (2), the first supporting rod (6) is parallel to the second supporting rod (7) in a different surface mode, a lantern ring (5) is arranged between the first supporting rod (6) and the second supporting rod (7), and the lantern ring (5) is located between the base (1) and the supporting plate (2) and is connected with the base (1) and the supporting plate (2) through a speed limiting device (8) respectively;
a first rotating disc (9) is fixed in the middle of the first supporting rod (6), the upper end and the lower end of the first supporting rod (6) are respectively connected to the supporting plate (2) and the base (1) in a sliding mode, a second rotating disc (13) is fixed in the middle of the second supporting rod (7), and the upper end and the lower end of the second supporting rod (7) are respectively connected to the supporting plate (2) and the base (1) in a sliding mode;
the first rotating disc (9) and the second rotating disc (13) are respectively coaxially and slidably connected to the inner sides of two ports of the lantern ring (5), and a locking mechanism (14) for locking the first supporting rod (6) and the second supporting rod (7) is arranged between the first rotating disc (9) and the second rotating disc (13);
the structure of the first rotating disc (9) is the same as that of the second rotating disc (13), an inner lining (20) is uniformly fixed at the edge of one opposite side, the inner lining (20) is coaxially and rotatably connected inside the lantern ring (5), and teeth are arranged on the inner side surface of the inner lining (20) along the circumferential direction;
the locking mechanism (14) comprises a cantilever (18) fixed on the second rotating disc (13), the cantilever (18) is perpendicular to the inner side end face of the second rotating disc (13), a guide sleeve (19) is fixed at one end, pointing to the first rotating disc (9), of the cantilever (18), the central axis of the guide sleeve (19) is located on the symmetrical surface of the first rotating disc (9) and the second rotating disc (13), a push rod (16) is inserted into the guide sleeve (19) in a sliding mode, a clamping block (17) is fixed at one end, pointing to the inner side wall of the inner bushing (20), of the push rod (16), and one surface, facing the inner side wall of the inner bushing (20), of the clamping block (17) is provided with teeth meshed with the teeth on the inner side face of the inner bushing (20); the locking mechanism (14) further comprises a pull rod (10), the pull rod (10) is inserted in the center of the first rotary table (9) in a sliding mode and exposed to the outer side of the first supporting rod (6), one end, pointing to the second rotary table (13), of the pull rod (10) is hinged to one end of a connecting rod (15), and the other end of the connecting rod (15) is hinged to one end, far away from the clamping block (17), of a push rod (16);
the width of the fixture block (17) along the axial direction of the inner bushing (20) is larger than the axial height of the inner bushing (20), the connecting rod (15) is perpendicular to the pull rod (10) when the fixture block (17) is meshed with the inner bushing (20), and a damping ring is sleeved at the joint of the pull rod (10) and the first rotating disc (9) as well as the first supporting rod (6).
2. A cross-axis stand for supporting a musical instrument according to claim 1 wherein: the central axis of the speed limiting device (8) is perpendicular to the supporting plate (2) and the base (1), the speed limiting device (8) is formed by coaxially sleeving a plurality of telescopic sleeves (81) with different diameters in sequence according to the diameters, two adjacent telescopic sleeves (81) can slide relatively, the end part of the telescopic sleeve (81) with the smallest diameter is fixedly connected with the lantern ring (5), and the end part of the telescopic sleeve (81) with the largest diameter is fixedly connected with the corresponding supporting plate (2) or the base (1).
3. A cross-axis stand for supporting a musical instrument according to claim 2 wherein: exhaust hole (82) have been seted up on the lateral wall of the telescopic sleeve (81) that the diameter is the biggest, the position department that corresponds exhaust hole (82) on the inner wall of telescopic sleeve (81) articulates there is baffle (83), and baffle (83) are not less than two-thirds of exhaust hole (82) opening area to the sheltering from of exhaust hole (82), are not more than the three-fourths of exhaust hole (82) opening area.
4. A cross-axis support for a musical instrument according to claim 1 or 3 wherein: the upper surface of base (1) is fixed with two first slide rails (3) that are parallel to each other, the lower extreme of first branch (6) and the lower extreme of second branch (7) all articulate and are connected with first slider (11) to respectively through first slider (11) sliding connection on first slide rail (3) that correspond.
5. A cross-axis stand for supporting a musical instrument according to claim 4 wherein: the lower fixed surface of backup pad (2) has two second slide rails (4) that are parallel to each other, and the inside of backup pad (2) is provided with the balancing weight, the upper end of first branch (6) and the upper end of second branch (7) are all articulated to be connected with second slider (12) to respectively through second slider (12) sliding connection on second slide rail (4) that correspond, and the cross section of first slide rail (3) and second slide rail (4) is the dovetail.
6. The method of using a cross-axis stand for supporting a musical instrument as set forth in claim 1, wherein: the method comprises the following steps:
the method comprises the following steps: the first rotary disc (9) and the second rotary disc (13) are unlocked through a locking mechanism (14), so that the first rotary disc (9) and the second rotary disc (13) can rotate relatively;
step two: the first supporting rod (6) and the second supporting rod (7) tend to be vertical or horizontal by applying force to the supporting plate (2), so that the height of the supporting plate (2) is adjusted;
step three: when the support is folded, the first rotating disc (9) and the second rotating disc (13) are unlocked through the locking mechanism (14), automatic folding is carried out by utilizing the self weight of the supporting plate (2), and in the process, the speed limiting device (8) plays a role in limiting the falling speed of the supporting plate (2) and avoids the falling speed of the supporting plate (2) from being too fast.
7. The use of a cross-axis stand for supporting a musical instrument as set forth in claim 6, wherein:
in the process of heightening the height of the supporting plate (2), the supporting plate (2) is far away from the base (1), each telescopic sleeve (81) in the speed limiting device (8) does outward extending movement, so that the space inside the speed limiting device (8) is enlarged, the internal pressure is lowered, external air enters from the air exhaust hole (82), the baffle (83) rotates around the connection shaft of the baffle (83) and the inner wall of the telescopic sleeve (81) to the inner side of the telescopic sleeve (81) under the action of air flow, the edge of the free end of the baffle (83) can be of a turned edge structure which is turned up towards the inner side of the telescopic sleeve (81), and therefore the baffle (83) can better rotate around the shaft in the air inlet process, the air exhaust hole (82) is not shielded, the air inflow of the air exhaust hole (82) is increased, and the time length in the heightening process is reduced;
in the folding and accommodating process of the support, the dead weight of the support plate (2) is utilized to apply the folding driving force, and the speed limiting device (8) plays a role in limiting the falling speed of the support plate (2), so that the falling speed of the support plate (2) is prevented from being too fast, and a buffering effect is achieved.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283255.6A CN109949782B (en) | 2019-04-10 | 2019-04-10 | Crossed shaft type support for supporting musical instrument and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910283255.6A CN109949782B (en) | 2019-04-10 | 2019-04-10 | Crossed shaft type support for supporting musical instrument and using method thereof |
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| CN109949782A CN109949782A (en) | 2019-06-28 |
| CN109949782B true CN109949782B (en) | 2022-12-20 |
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| CN201910283255.6A Active CN109949782B (en) | 2019-04-10 | 2019-04-10 | Crossed shaft type support for supporting musical instrument and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5984245A (en) * | 1997-10-27 | 1999-11-16 | Hsu; Hsin-Hsuan | Device for adjusting the angle and height of an electronic organ stand |
| JP3656620B2 (en) * | 2001-08-08 | 2005-06-08 | ヤマハ株式会社 | Musical instrument stand |
| GB0122897D0 (en) * | 2001-09-24 | 2001-11-14 | Michell Andrew C | Music stand |
| US7398571B2 (en) * | 2004-09-24 | 2008-07-15 | Stryker Corporation | Ambulance cot and hydraulic elevating mechanism therefor |
| CN104200798B (en) * | 2014-08-06 | 2017-04-05 | 宁波音王电声股份有限公司 | A kind of x types folding rack |
| CN206751330U (en) * | 2017-03-03 | 2017-12-15 | 衢州伟仕工业产品设计有限公司 | A kind of firm movable elevator |
| CN107183915A (en) * | 2017-05-31 | 2017-09-22 | 四川弘毅智慧知识产权运营有限公司 | A kind of lifting pedestal |
| CN107355063A (en) * | 2017-08-30 | 2017-11-17 | 浙江工业大学 | A kind of wall painting machine |
| CN208141322U (en) * | 2018-05-16 | 2018-11-23 | 常州大学 | A kind of computer heat radiating device |
| CN108720451B (en) * | 2018-05-25 | 2020-08-04 | 安徽兄弟同创文化发展有限公司 | Automobile exhibition stand convenient for height adjustment and angle display |
| CN208439442U (en) * | 2018-07-17 | 2019-01-29 | 中国人民解放军海军航空大学青岛校区 | A kind of hoistable platform for aircraft maintenance |
| CN108996445A (en) * | 2018-07-21 | 2018-12-14 | 筑梦高科建筑有限公司 | A kind of high-altitude lifter structure of architectural engineering high security |
| CN109193397B (en) * | 2018-11-26 | 2020-04-28 | 河北机电职业技术学院 | Automatic change energy-conserving dampproofing switch board of over-and-under type |
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2019
- 2019-04-10 CN CN201910283255.6A patent/CN109949782B/en active Active
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