CN109361974B - Microphone support for singing - Google Patents
Microphone support for singing Download PDFInfo
- Publication number
- CN109361974B CN109361974B CN201811345704.7A CN201811345704A CN109361974B CN 109361974 B CN109361974 B CN 109361974B CN 201811345704 A CN201811345704 A CN 201811345704A CN 109361974 B CN109361974 B CN 109361974B
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- expansion
- rod
- diameter
- inner hole
- telescopic rod
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a microphone bracket for singing, which comprises a base, a lifting rod arranged on the base and a cross rod for placing a microphone, wherein the lifting rod is arranged on the base; the lifting rod is characterized by comprising a main rod body with a circular inner hole and a telescopic rod inserted in the main rod body, wherein the cross rod is arranged at the upper end of the telescopic rod through a connecting seat; the lower end of the telescopic rod is rotatably sleeved with an expansion sleeve, the outer diameter of the expansion sleeve is consistent with the diameter of the inner hole of the main rod body, and the expansion sleeve is in sliding fit connection with the main rod body through a guide structure arranged along the axial direction; the lower end of the expansion sleeve is provided with an expansion part uniformly distributed with a plurality of radial cuts, the shape of an inner hole of the expansion part close to the lower end is a rotationally symmetrical graph formed by curves, and the radial dimension of the inner hole is smoothly changed along the circumferential direction; the lower end of the telescopic rod is provided with an expansion part which is consistent with the size and shape of the inner hole at the lower end part of the expansion part. The invention has the advantages of ingenious structure, convenient operation and use, convenient adjustment and the like, and can lock the height of the bracket only by slightly screwing.
Description
Technical Field
The invention relates to the technical field of stage equipment, in particular to a microphone bracket for singing.
Background
The microphone support is usually including connecting the outer tube on the base, the outer tube inserts the inner tube, microphone clamp installs the top at the inner tube, people can be in order to make the height-adjusting of placing of microphone, consequently set up the inner tube of microphone support as can freely go up and down, and realize this elevating function's device is including installing the connector at the outer tube top, there is external screw thread and locking pawl on the connector, the connector corresponds a locking swivel nut, the inner tube is pegged graft in the tube hole of outer tube, with the locking swivel nut down screw in along the external screw thread, the locking swivel nut is downwards, inwards extrudeed locking pawl and is locked the inner tube. Although the structure can realize the height adjustment locking of the inner tube, the structure can lock the inner tube only by continuously rotating the locking screw sleeve, and the use is inconvenient.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that: how to provide a structural design ingenious, operation convenient to use only need slightly to twist and to lock a support height, adjust the microphone support for singing convenient.
In order to solve the technical problems, the invention adopts the following technical scheme:
a microphone bracket for singing comprises a base, a lifting rod arranged on the base and a cross rod for placing a microphone; the lifting rod is characterized by comprising a main rod body with a circular inner hole and a telescopic rod inserted in the main rod body, wherein the cross rod is arranged at the upper end of the telescopic rod through a connecting seat; the lower end of the telescopic rod is rotatably sleeved with an expansion sleeve, the outer diameter of the expansion sleeve is consistent with the diameter of the inner hole of the main rod body, and the expansion sleeve is slidably matched and connected with the main rod body through a guide structure arranged along the axial direction; the lower end of the expansion sleeve is provided with an expansion part uniformly distributed with a plurality of radial cuts, the shape of an inner hole, close to the lower end, of the expansion part is a rotationally symmetrical graph formed by curves, and the radial dimension of the inner hole is smoothly changed along the circumferential direction; the lower end of the telescopic rod is provided with an expansion part which is consistent with the size and shape of the inner hole at the lower end part of the expansion part.
By adopting the structure, the expansion sleeve and the main rod body are slidably matched and connected through the guide structure arranged along the axial direction, so that the expansion sleeve can only move along the axial direction in the main rod body. Meanwhile, the expansion sleeve is rotatably sleeved on the telescopic rod, so that the telescopic rod can rotate relative to the expansion sleeve, the expansion part of the telescopic rod and the inner hole at the lower end part of the expansion sleeve are rotationally symmetrical patterns with consistent shapes and sizes, and the radial sizes are smoothly changed along the circumferential direction, so that the expansion part slightly rotates along with the telescopic rod, the part with relatively large radial sizes on the expansion part corresponds to the part with relatively small radial sizes on the inner hole at the lower end part of the expansion sleeve, and the expansion part of the expansion sleeve is extruded outwards, so that the expansion part is expanded along the notch and is locked in the main rod body. The structure design is ingenious, the matching relation between the inner hole at the lower end part of the expansion part and the radial dimension smoothly changing on the expansion part is changed, and the height of the support can be locked by only slightly screwing, so that the support is more convenient to adjust.
Further, the telescopic rod comprises a long rod section with the diameter identical with the diameter of the inner hole of the main rod body and an expansion section with the smaller diameter at the lower end; the length of the expansion section is consistent with that of the expansion sleeve, and the expansion sleeve is sleeved on the expansion section; the expansion sleeve is characterized by further comprising a circular baffle, the diameter of the baffle is consistent with the diameter of the inner hole of the main rod body, and the baffle is positioned below the expansion sleeve and is installed at the lower end of the telescopic rod through a connecting bolt.
Because the diameter of the long rod section, the diameter of the baffle and the outer diameter of the expansion sleeve are consistent with the diameter of the inner hole of the main rod body, the length of the expansion section is consistent with the length of the expansion sleeve, and the baffle is positioned below the expansion sleeve, the expansion sleeve is limited on the expansion section, so that when the expansion rod moves along the axial direction, the expansion sleeve always moves together with the expansion rod, and any position of the expansion rod can be conveniently locked and fixed.
Further, the bottom of the expansion extrusion part is provided with a concave part which is coaxially arranged and polygonal, one side of the baffle, which faces the telescopic rod, is provided with a convex part which is arranged corresponding to the concave part, the shape and the size of the end face of the convex part are consistent with those of the end face of the concave part, and the convex part of the baffle is matched in the concave part of the telescopic rod.
Because the end face shape and the size of the protruding portion of the baffle are consistent with those of the recessed portion, the protruding portion of the baffle is matched in the recessed portion of the telescopic rod, and the recessed portion is of a polygonal structure, when the telescopic rod rotates, the baffle rotates together with the telescopic rod, so that looseness of bolts caused by relative rotation of the baffle and the telescopic rod can be avoided, and the stability of installation of the baffle is improved.
Further, the inner hole of the expansion part close to the lower end part is elliptical, and the length of a long half axis of the ellipse is 1-2 mm larger than that of a short half axis.
In this way, in the process of rotating the long axis of the expansion part to the short axis direction of the inner hole of the expansion part close to the lower end part, the length of the elliptic long half axis is 1-2 mm longer than that of the short half axis, so that the diameter of the expansion part of the expansion sleeve can be increased by 0-4 mm, the expansion sleeve can be tightly locked in the inner hole of the main rod body, and the locking of any position of the telescopic rod is realized.
Further, the upper end of the expansion sleeve is provided with a plurality of positioning grooves which are arranged in a wave shape along the circumferential direction, and the depth of each positioning groove is smaller than the height of the protruding part of the baffle plate; the lower end of the long rod section is provided with a positioning block corresponding to the positioning groove in an axially protruding mode, and when the long axis of the expansion part is consistent with the long axis direction of an inner hole of the expansion part, which is close to the lower end part, the positioning block is clamped into one of the positioning grooves; and a spring is further arranged between the lower end of the baffle plate and the connecting bolt.
Because set up the spring between the lower extreme of baffle and connecting bolt for the telescopic link rotates the in-process relatively the expansion shell, just can utilize the compression of spring in the axial, make the locating piece can slide to another constant head tank along wavy constant head tank in, with the different positions of expansion part locking in the expansion part. And because the depth of the positioning groove is smaller than the height of the protruding part of the baffle, the protruding part can be ensured to be always positioned in the concave part, the telescopic rod and the baffle synchronously rotate all the time, and the looseness of the connecting bolt is avoided.
Further, the expansion sleeve is formed by plastic integral injection molding, and comprises an expansion part at the lower end and a guide part at the upper end, wherein the guide structure comprises a guide groove axially arranged on the inner hole wall of the main rod body and a guide block protruding from the outer wall of the guide part, and the guide block of the guide part is slidably matched in the guide groove of the main rod body.
Further, the outer diameter of the guide portion is consistent with the inner hole diameter of the main rod body, the outer diameter of the expansion portion is smaller than the outer diameter of the guide portion, a layer of rubber is arranged on the outer surface of the expansion portion, and the outer diameter of the rubber layer is consistent with the outer diameter of the guide portion.
By arranging a layer of rubber on the outer surface of the expansion part, the friction force between the expanded expansion sleeve and the inner control of the main rod body can be increased, and the compression performance of the expansion sleeve can be utilized in the expansion process, so that the smoothness of rotation is improved.
Further, the connecting seat comprises a ball seat and a cross rod seat which are arranged at the upper end of the telescopic rod, the cross rod seat is provided with a clamping groove for clamping the cross rod, and the cross rod is movably clamped in the clamping groove; the cross rod seat is also provided with a column body protruding along the direction perpendicular to the clamping groove, and the end part of the column body is provided with a sphere with the diameter larger than that of the column body; the top of the ball seat is provided with a ball socket with the inner diameter matched with the diameter of the ball, and the depth of the ball socket is larger than the radius of the ball socket; the ball body of the cross rod seat is rotatably locked and matched in the ball socket of the ball seat.
Therefore, the cross rod can be conveniently pulled through the rotatable locking fit between the ball body and the ball socket, the angle of the cross rod can be adjusted, and the cross rod can be stopped at any angle by utilizing the locking fit between the ball body and the ball socket, so that the singer can use the cross rod conveniently.
Further, the ball seat is provided with a locking part protruding along the radial direction of the main rod body and a notch arranged along the vertical bisecting of the locking part, the notch is communicated with the ball socket, and the gap at the notch is 2-3 mm; the locking part is provided with a bolt hole which is arranged in a penetrating way along the plane perpendicular to the notch, and is provided with a locking bolt.
Therefore, the ball can be conveniently installed in the ball socket by expanding the gap at the notch, and the ball socket can be further reduced by extruding the gap at the notch through the locking bolt, so that the clamping force between the ball socket and the ball is increased, and the angle of the cross rod is convenient to fix.
Further, the depth of the ball socket is 2-3 mm greater than the radius of the sphere.
Therefore, half of the ball body can be contained in the ball socket, the ball body is prevented from falling off from the ball socket, and the connection reliability is improved. The ball socket can be slightly enlarged, so that the ball body can be plugged into the ball socket, and the installation is more convenient.
In conclusion, the invention has the advantages of ingenious structure, convenient operation and use, convenient adjustment and the like, and the height of the bracket can be locked only by slightly screwing.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of the portion a in fig. 1.
FIG. 3 is a schematic cross-sectional view of the expansion shell and expansion portion of FIG. 2.
Fig. 4 is an enlarged schematic view of the portion B in fig. 1.
Fig. 5 is a schematic structural view of the base portion.
Fig. 6 is a schematic view of the bottom structure of the main rod body.
Fig. 7 is a schematic view of one portion of an expansion portion of another construction.
Fig. 8 is a schematic view of the structure between the positioning groove and the positioning block arranged in a wave shape.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The specific implementation method comprises the following steps: as shown in fig. 1 to 6, a microphone stand for singing includes a base 1, a lifting rod 2 mounted on the base 1, and a cross bar 3 for placing a microphone; the lifting rod 2 comprises a main rod body 21 with a circular inner hole and a telescopic rod 22 inserted into the main rod body 21, and the cross rod 3 is arranged at the upper end of the telescopic rod 22 through a connecting seat 4; the lower end of the telescopic rod 22 is rotatably sleeved with an expansion sleeve 23, the outer diameter of the expansion sleeve 23 is consistent with the diameter of the inner hole of the main rod body 21, and the expansion sleeve 23 is slidably matched and connected with the main rod body 21 through a guide structure arranged along the axial direction; the lower end of the expansion sleeve 23 is provided with an expansion part 231 uniformly provided with a plurality of radial cuts, the shape of an inner hole of the expansion part close to the lower end is a rotationally symmetrical graph formed by curves, and the radial dimension of the inner hole is smoothly changed along the circumferential direction; the lower end of the telescopic rod 22 has an expansion portion 223 corresponding to the size and shape of the inner hole of the lower end portion of the expansion portion 231.
By adopting the structure, the expansion sleeve and the main rod body are slidably matched and connected through the guide structure arranged along the axial direction, so that the expansion sleeve can only move along the axial direction in the main rod body. Meanwhile, the expansion sleeve is rotatably sleeved on the telescopic rod, so that the telescopic rod can rotate relative to the expansion sleeve, the expansion part of the telescopic rod and the inner hole at the lower end part of the expansion sleeve are rotationally symmetrical patterns with consistent shapes and sizes, and the radial sizes are smoothly changed along the circumferential direction, so that the expansion part slightly rotates along with the telescopic rod, the part with relatively large radial sizes on the expansion part corresponds to the part with relatively small radial sizes on the inner hole at the lower end part of the expansion sleeve, and the expansion part of the expansion sleeve is extruded outwards, so that the expansion part is expanded along the notch and is locked in the main rod body. The structure design is ingenious, the matching relation between the inner hole at the lower end part of the expansion part and the radial dimension smoothly changing on the expansion part is changed, and the height of the support can be locked by only slightly screwing, so that the support is more convenient to adjust.
In practice, the telescopic rod 22 comprises a long rod section 221 with the diameter consistent with the diameter of the inner hole of the main rod body 21 and an expansion section 222 with the smaller diameter at the lower end; the length of the expansion section 222 is consistent with that of the expansion sleeve 23, and the expansion sleeve 23 is sleeved on the expansion section 222; the expansion sleeve comprises a main rod body 21, an expansion sleeve 23 and a circular baffle 24, wherein the diameter of the baffle 24 is consistent with the diameter of an inner hole of the main rod body 21, and the baffle 24 is positioned below the expansion sleeve 23 and is arranged at the lower end of the expansion rod 22 through a connecting bolt.
Because the diameter of the long rod section, the diameter of the baffle and the outer diameter of the expansion sleeve are consistent with the diameter of the inner hole of the main rod body, the length of the expansion section is consistent with the length of the expansion sleeve, and the baffle is positioned below the expansion sleeve, the expansion sleeve is limited on the expansion section, so that when the expansion rod moves along the axial direction, the expansion sleeve always moves together with the expansion rod, and any position of the expansion rod can be conveniently locked and fixed.
In implementation, the bottom of the expansion portion 223 has a recess portion coaxially disposed and polygonal, one side of the baffle 24 facing the telescopic rod 22 has a protrusion portion disposed corresponding to the recess portion, the shape and size of the end face of the protrusion portion are consistent with those of the end face of the recess portion, and the protrusion portion of the baffle 24 is fitted in the recess portion of the telescopic rod 22.
Because the end face shape and the size of the protruding portion of the baffle are consistent with those of the recessed portion, the protruding portion of the baffle is matched in the recessed portion of the telescopic rod, and the recessed portion is of a polygonal structure, when the telescopic rod rotates, the baffle rotates together with the telescopic rod, so that looseness of bolts caused by relative rotation of the baffle and the telescopic rod can be avoided, and the stability of installation of the baffle is improved.
In implementation, the inner hole of the expansion part close to the lower end part is elliptical, and the length of a long half axis of the ellipse is 1-2 mm larger than that of a short half axis.
In this way, in the process of rotating the long axis of the expansion part to the short axis direction of the inner hole of the expansion part close to the lower end part, the length of the elliptic long half axis is 1-2 mm longer than that of the short half axis, so that the diameter of the expansion part of the expansion sleeve can be increased by 0-4 mm, the expansion sleeve can be tightly locked in the inner hole of the main rod body, and the locking of any position of the telescopic rod is realized.
In the specific implementation, a structure as shown in fig. 7 may be further adopted, where the projection pattern of the inner hole of the expansion part near the lower end part includes a first convex curve and a second convex curve that are sequentially arranged at intervals along the circumferential direction, and the diameter of the common tangent circle of all the first convex curves is 2-4 mm smaller than the diameter of the common tangent circle of all the second convex curves; and concave curves are connected between the adjacent first convex curves and the second convex curves, and the diameters of the common tangent circles of all the first convex curves are 1-1.5 mm larger than those of the common tangent circles of all the concave curves. The central angle between the adjacent first convex curve and the adjacent second convex curve is 10-15 degrees.
Therefore, when the positions of the second outward convex curve and the first outward convex curve on the expansion part are staggered with the positions of the second outward convex curve and the first outward convex curve on the expansion part, the expansion part can expand the expansion part outwards, so that the expansion part is locked in the main rod body. Moreover, the telescopic rod can be locked or unlocked only by rotating the telescopic rod by 10-15 degrees, so that the height of the lifting rod is adjusted.
In practice, as shown in fig. 8, the upper end of the expansion sleeve 23 has a plurality of positioning grooves arranged in a wave shape along the circumferential direction, and the depth of the positioning grooves is smaller than the height of the protruding part of the baffle 24; the lower end of the long rod section 221 is provided with a positioning block corresponding to the positioning groove in an axially protruding mode, and when the long axis of the expansion part is consistent with the long axis direction of an inner hole of the expansion part close to the lower end part, the positioning block is clamped into one of the positioning grooves; a spring is also arranged between the lower end of the baffle plate 24 and the connecting bolt.
Because set up the spring between the lower extreme of baffle and connecting bolt for the telescopic link rotates the in-process relatively the expansion shell, just can utilize the compression of spring in the axial, make the locating piece can slide to another constant head tank along wavy constant head tank in, with the different positions of expansion part locking in the expansion part. And because the depth of the positioning groove is smaller than the height of the protruding part of the baffle, the protruding part can be ensured to be always positioned in the concave part, the telescopic rod and the baffle synchronously rotate all the time, and the looseness of the connecting bolt is avoided.
In implementation, the expansion sleeve 23 is integrally injection molded by plastic, and comprises an expansion part 231 at the lower end and a guide part 232 at the upper end, and the guide structure comprises a guide groove axially arranged on the inner hole wall of the main rod body 21 and a guide block protruding from the outer wall of the guide part 232, and the guide block of the guide part 232 is slidably matched in the guide groove of the main rod body 21.
In practice, the outer diameter of the guiding portion 232 is identical to the inner diameter of the main rod body 21, the outer diameter of the expansion portion 231 is smaller than the outer diameter of the guiding portion 232, a layer of rubber is disposed on the outer surface of the expansion portion 231, and the outer diameter of the rubber layer is identical to the outer diameter of the guiding portion 232.
By arranging a layer of rubber on the outer surface of the expansion part, the friction force between the expanded expansion sleeve and the inner control of the main rod body can be increased, and the compression performance of the expansion sleeve can be utilized in the expansion process, so that the smoothness of rotation is improved.
In practice, the connecting seat 4 comprises a ball seat 41 and a cross rod seat 42 which are arranged at the upper end of the telescopic rod 22, the cross rod seat 42 is provided with a clamping groove for clamping the cross rod 3, and the cross rod 3 is movably clamped in the clamping groove; the cross rod seat 42 is also provided with a column body protruding along the direction perpendicular to the clamping groove, and the end part of the column body is provided with a sphere with a diameter larger than that of the column body; the top of the ball seat 41 is provided with a ball socket with an inner diameter matched with the diameter of the ball, and the depth of the ball socket is larger than the radius of the ball socket; the ball of the cross bar seat 42 is rotatably locked and matched in the ball socket of the ball seat 41.
Therefore, the cross rod can be conveniently pulled through the rotatable locking fit between the ball body and the ball socket, the angle of the cross rod can be adjusted, and the cross rod can be stopped at any angle by utilizing the locking fit between the ball body and the ball socket, so that the singer can use the cross rod conveniently.
In practice, the ball seat 41 is provided with a locking part 43 protruding along the radial direction of the main rod body 21 and a notch arranged along the vertical direction and dividing the locking part 43, the notch is communicated with the ball socket, and the gap at the notch is 2-3 mm; the locking portion 43 has a bolt hole penetrating along a plane perpendicular to the slit, and is provided with a locking bolt.
Therefore, the ball can be conveniently installed in the ball socket by expanding the gap at the notch, and the ball socket can be further reduced by extruding the gap at the notch through the locking bolt, so that the clamping force between the ball socket and the ball is increased, and the angle of the cross rod is convenient to fix.
In practice, the depth of the ball socket is 2-3 mm greater than the radius of the sphere.
Therefore, half of the ball body can be contained in the ball socket, the ball body is prevented from falling off from the ball socket, and the connection reliability is improved. The ball socket can be slightly enlarged, so that the ball body can be plugged into the ball socket, and the installation is more convenient.
In practice, the cross rod seat 42 is formed by plastic injection molding, and the side wall of the clamping groove is a circular arc thin wall; the diameter of the clamping groove is 2-3 mm smaller than that of the cross rod 3, and the depth of the clamping groove is 2-3 mm larger than the radius of the cross rod 3.
Therefore, the opening of the clamping groove can be enlarged to clamp the cross rod into the clamping groove by utilizing the elasticity of the plastic thin wall of the clamping groove, and the cross rod is clamped in the clamping groove because the diameter of the clamping groove is smaller than that of the cross rod.
In practice, the base 1 comprises a sleeve 11 sleeved on the main rod body 21 and a plurality of support legs 12 hinged on the sleeve 11, wherein the support legs 12 are uniformly distributed along the circumferential direction of the sleeve 11; the inner diameter of the sleeve 11 is consistent with the diameter of the main rod body 21, a gap corresponding to the supporting leg 12 is formed in the wall of the sleeve, two lugs are respectively arranged on two sides of the gap along the circumferential direction, a cylindrical hinging seat is arranged at the upper end of the supporting leg 12, the hinging seat is hinged on the lugs on two sides of the gap through a hinging shaft arranged along the axial direction, and the minimum distance from the axis of the hinging shaft to the inner wall of the sleeve 11 is consistent with the radius of the hinging seat; the hinge shaft is eccentrically arranged on one side of the hinge seat facing the lower end of the support leg 12, and the eccentric distance is 2-5 mm.
By adopting the structure, as the gap is arranged on the wall of the sleeve and the lugs are arranged on the two sides of the gap, the support leg hinge seat hinged between the two lugs is also positioned in the gap, and as the hinge shaft is eccentrically arranged on one side of the hinge seat towards the lower end of the support leg, the minimum distance from the axis of the hinge shaft to the inner wall of the sleeve is equal to the radius of the hinge seat, when the support leg is in a state of axially shrinking along the sleeve, the hinge seat is tangential with the outer wall of the main rod body, once the support leg is radially outwards stretched, the eccentric distance of the hinge seat can be utilized, the hinge seat is propped against the outer wall of the main rod body, and as the angle of the outer support of the support leg is larger, the compression force between the support leg and the hinge seat is larger, so that the sleeve can be locked on the main rod body in a supporting state under the stretching state of the support leg. When the telescopic support is stored, the support can be rotated and contracted downwards by utilizing the dead weight of the support only by lifting the main rod body, so that the support can move upwards along with the sleeve after being contracted, and can be contracted outside the main rod body, and the support can be completely contracted to be cylindrical by combining with the contraction of the telescopic rod, so that the telescopic support is convenient to store and carry.
In implementation, a plurality of support blocks are arranged at the lower end of the main rod body 21 in a protruding manner along the radial direction, wherein the support blocks are arranged corresponding to the areas between two adjacent support legs 12, and the diameter of the circumcircle of the support blocks is consistent with that of the circumcircle of the support lugs; the support block is inclined along one side of the main rod body 21 in the circumferential direction.
Like this, can move the sleeve downwardly, then rotatory sleeve makes the landing leg remove along the inclined plane of supporting shoe, just can realize the struts of landing leg, simultaneously, utilizes the supporting shoe to the support of landing leg, can prevent landing leg shrink when performing, uses more stably. When the support is stored, the main rod body is only required to be rotated, so that the support leg is positioned between two adjacent support blocks, and the support leg can be contracted by utilizing the dead weight of the support leg.
In practice, the supporting block is inclined upwards along the axial direction of the main rod body 21, and an accommodating space capable of accommodating the lower ends of the support legs 12 is formed between the supporting block and the main rod body 21.
Therefore, after the supporting legs are contracted, the sleeve and the supporting legs can be rotated together, so that the lower ends of the supporting legs are rotated into the accommodating space, the supporting legs are limited to swing along with the hinge shaft, and the carrying is more convenient.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. A microphone bracket for singing comprises a base (1), a lifting rod (2) arranged on the base (1) and a cross rod (3) for placing a microphone; the lifting rod (2) comprises a main rod body (21) with a circular inner hole and a telescopic rod (22) inserted into the main rod body (21), and the cross rod (3) is arranged at the upper end of the telescopic rod (22) through a connecting seat (4); the lower end of the telescopic rod (22) is rotatably sleeved with an expansion sleeve (23), the outer diameter of the expansion sleeve (23) is consistent with the diameter of the inner hole of the main rod body (21), and the expansion sleeve (23) is slidably matched and connected with the main rod body (21) through a guide structure arranged along the axial direction; the lower end of the expansion sleeve (23) is provided with an expansion part (231) with a plurality of radial cuts uniformly, the shape of an inner hole of the expansion part close to the lower end is a rotationally symmetrical graph formed by curves, and the radial dimension of the inner hole is changed smoothly along the circumferential direction; the lower end of the telescopic rod (22) is provided with an expansion part (223) which is consistent with the size and shape of the inner hole at the lower end part of the expansion part (231);
the telescopic rod (22) comprises a long rod section (221) with the diameter consistent with the diameter of the inner hole of the main rod body (21) and an expansion section (222) with the smaller diameter at the lower end; the length of the expansion section (222) is consistent with that of the expansion sleeve (23), and the expansion sleeve (23) is sleeved on the expansion section (222); the expansion device further comprises a circular baffle plate (24), the diameter of the baffle plate (24) is consistent with the diameter of the inner hole of the main rod body (21), and the baffle plate (24) is positioned below the expansion sleeve (23) and is arranged at the lower end of the telescopic rod (22) through a connecting bolt;
the bottom of the expansion and extrusion part (223) is provided with a polygonal concave part which is coaxially arranged, one side of the baffle (24) facing the telescopic rod (22) is provided with a convex part which is correspondingly arranged with the concave part, the shape and the size of the end face of the convex part are consistent with those of the end face of the concave part, and the convex part of the baffle (24) is matched in the concave part of the telescopic rod (22);
the inner hole of the expansion part close to the lower end part is elliptical, and the length of a long half shaft of the ellipse is 1-2 mm longer than that of a short half shaft; the upper end of the expansion sleeve (23) is provided with a plurality of positioning grooves which are arranged in a wave shape along the circumferential direction, and the depth of each positioning groove is smaller than the height of the protruding part of the baffle plate (24); the lower end of the long rod section (221) is provided with a positioning block corresponding to the positioning groove in an axially protruding mode, and when the long axis of the expansion part is consistent with the long axis direction of an inner hole of the expansion part close to the lower end part, the positioning block is clamped into one of the positioning grooves; a spring is further arranged between the lower end of the baffle plate (24) and the connecting bolt.
2. Microphone stand for singing according to claim 1, characterized in that the expansion sleeve (23) is injection molded in one piece from plastic, comprising the expansion part (231) at the lower end and the guide part (232) at the upper end, the guide structure comprising a guide groove axially provided on the inner wall of the main rod body (21), and a guide block protruding on the outer wall of the guide part (232), the guide block of the guide part (232) being slidably fitted in the guide groove of the main rod body (21).
3. The microphone holder for singing according to claim 2, wherein the outer diameter of the guide portion (232) is identical to the inner diameter of the main rod body (21), the outer diameter of the expansion portion (231) is smaller than the outer diameter of the guide portion (232), a layer of rubber is provided on the outer surface of the expansion portion (231), and the outer diameter of the rubber layer is identical to the outer diameter of the guide portion (232).
4. Microphone stand for singing according to claim 1, characterized in that the connection base (4) comprises a ball base (41) and a cross rod base (42) mounted at the upper end of the telescopic rod (22), the cross rod base (42) is provided with a clamping groove for clamping the cross rod (3), and the cross rod (3) is movably clamped in the clamping groove; the cross rod seat (42) is also provided with a column body protruding along the direction perpendicular to the clamping groove, and the end part of the column body is provided with a sphere with the diameter larger than that of the column body; the top of the ball seat (41) is provided with a ball socket with an inner diameter matched with the diameter of the ball, and the depth of the ball socket is larger than the radius of the ball socket; the ball body of the cross rod seat (42) is rotatably locked and matched in the ball socket of the ball seat (41).
5. Microphone stand for singing according to claim 4, characterized in that the ball seat (41) is provided with a locking part (43) protruding along the radial direction of the main rod body (21), and a notch arranged along the vertical bisecting of the locking part (43), the notch is communicated with the ball socket, and the gap at the notch is 2-3 mm; the locking part (43) is provided with a bolt hole which is penetrated and arranged along the plane perpendicular to the notch, and is provided with a locking bolt.
6. The singing microphone boom of claim 5, wherein the depth of the socket is 2-3 mm greater than the radius of the sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811345704.7A CN109361974B (en) | 2018-11-13 | 2018-11-13 | Microphone support for singing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811345704.7A CN109361974B (en) | 2018-11-13 | 2018-11-13 | Microphone support for singing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109361974A CN109361974A (en) | 2019-02-19 |
| CN109361974B true CN109361974B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811345704.7A Active CN109361974B (en) | 2018-11-13 | 2018-11-13 | Microphone support for singing |
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| Country | Link |
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| CN (1) | CN109361974B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109361974A (en) | 2019-02-19 |
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