CN117082387A - Outdoor pull rod sound box convenient to fix - Google Patents

Abstract

The invention discloses an outdoor pull rod sound box convenient to fix, which relates to the field of sound boxes and comprises a sound box main body and a loudspeaker, wherein a groove is formed in the outer wall of the sound box main body, a stretching mechanism is arranged on the inner side of the sound box main body and extends to the outer side of the sound box main body, the stretching mechanism comprises a handle, a first threaded rod, a first threaded sleeve rod, two groups of second gears and a driving belt, the handle is arranged above the sound box main body, the first threaded rod is arranged below the handle, the first threaded sleeve rod is arranged on the outer side of the first threaded rod, the two groups of second gears are arranged on the outer side of the first threaded sleeve rod, and the driving belt is arranged on the outer side of the second gears. According to the invention, the roller of the device is separated from the ground by the stretching mechanism and the fixing mechanism, and the device is fixed by the sucker at the bottom of the fixing seat, so that the purpose of fixing the device is achieved, and the damage of the device caused by collapse and sliding of the device is avoided.

Description

Outdoor pull rod sound box convenient to fix

Technical Field

The invention relates to the field of sound boxes, in particular to an outdoor pull rod sound box convenient to fix.

Background

The sound box is a simplified daily term, is a simplified sound box system, namely a whole set of equipment capable of playing audio signals in a restoring mode, people can live more and more colorful along with the progress of society, the dance is taken as a popular entertainment form, the life of people goes deep, along with the development and progress of science and technology, the requirements of people on the performance form and the place of the dance are more and more, and the sound box system is continuously improved and perfected along with the demands of people.

Outdoor use makes user's outer audio amplifier more, and outdoor audio amplifier is when using, at first will pulling the pull rod through operating personnel is manual, drags the pull rod afterwards, through the gyro wheel of audio amplifier bottom, drives whole audio amplifier and removes until removing to required position, fixes whole device through gyro wheel and the supporting shoe of bottom this moment to this avoids removing because the roll drive device of gyro wheel in the use.

In the prior art, because fix whole audio amplifier device in required position through gyro wheel and fixed block, if the device is placed when the slope bottom surface, because the self gravity of device and the roll of gyro wheel, easily make the device take place to remove for the device takes place to collapse, easily causes the damage to the device, and when the device is in outdoor use weather rains suddenly, easily makes the opening part of speaker intaking in the way of pulling the device back, causes the damage to the device, and when the device is placed for a long time and is not used, the easy dust that piles up in position of speaker has reduced the life of device.

Disclosure of Invention

Based on this, the present invention aims to provide an outdoor pull rod sound box which is convenient to fix, so as to solve the technical problems mentioned in the background.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a conveniently fixed outdoor pull rod audio amplifier, includes audio amplifier main part and speaker, the outer wall of audio amplifier main part is provided with the recess, and the inboard of audio amplifier main part is provided with stretching mechanism, and stretching mechanism extends to the outside of audio amplifier main part, stretching mechanism is including handle, first threaded rod, first screw thread loop bar, two sets of second gears and drive belt, and the handle sets up in the top of audio amplifier main part, and first threaded rod sets up in the below of handle, first screw thread loop bar sets up in the outside of first threaded rod, and two sets of second gears set up in the outside of first screw thread loop bar, and the drive belt sets up in the outside of second gear, and the inboard of audio amplifier main part is provided with fixed establishment.

Through adopting above-mentioned technical scheme, make first threaded rod reciprocate through pulling and pressing the handle, through threaded connection between first threaded rod and the first thread loop bar, ensured when first threaded rod reciprocates for first thread loop bar rotates, through the transmission connection between first thread loop bar, second gear and the drive belt for fixed establishment rotates, fixes the device through fixed establishment.

The invention further provides that the handle comprises a handle shell, two groups of first spring telescopic rods, a first connecting rod, a transmission rod and an extrusion block, wherein the handle shell is arranged above the sound box main body, the two groups of first spring telescopic rods are arranged in the handle shell, the first connecting rod is connected between the two groups of first spring telescopic rods, the transmission rod is arranged on the outer side of the first connecting rod, the transmission rod extends to the inner side of the first threaded rod, the extrusion block is arranged at the tail end of the first spring telescopic rod, and the extrusion block extends to the outer side of the handle shell.

Through adopting above-mentioned technical scheme, through the extrusion piece for first spring telescopic link inwards contracts, with this drive head rod upward movement, guaranteed to drive the transfer line upward movement.

The invention further provides that the first threaded rod comprises a threaded rod main body, a connecting cylinder, a second threaded sleeve rod, a first gear, two groups of second threaded rods and a limiting block, wherein the threaded rod main body is arranged below the handle shell, the connecting cylinder is arranged at the tail end of the threaded rod main body, a limiting groove is formed in the outer side of the connecting cylinder, the second threaded sleeve rod is arranged in the connecting cylinder, the first gear is arranged on the outer side of the second threaded sleeve rod, the two groups of second threaded rods are symmetrically arranged on the inner side of the first gear, and the limiting block is arranged at the tail end of the second threaded rod.

Through adopting above-mentioned technical scheme, when reciprocate through the transfer line, through the engagement connection between the terminal rack of transfer line and the first gear for the second thread loop bar rotates, through the threaded connection between second thread loop bar and the second threaded rod, has ensured when the transfer line reciprocates, makes the second threaded rod at the inboard concertina movement of second thread loop bar.

The fixing mechanism comprises a third threaded sleeve rod, a third gear, a fourth gear, a third threaded rod and a fixing seat, wherein the third threaded sleeve rod is arranged on the inner side of the sound box main body, the third gear is arranged on the outer side of the third threaded sleeve rod, the fourth gear is arranged on the outer side of the third threaded sleeve rod, the third threaded rod is arranged on the inner side of the third threaded sleeve rod, the fixing seat is arranged at the tail end of the third threaded rod, and a telescopic rod is arranged between the fixing seat and a groove at the bottom of the sound box main body.

Through adopting above-mentioned technical scheme, make with third threaded rod threaded connection's of third threaded loop bar third threaded rod reciprocate through the rotation of third threaded loop bar, guaranteed to drive the fixing base and reciprocate to this reaches when using the device, through the laminating of sucking disc and the ground of fixing base bottom, has guaranteed to fix the device, and is provided with the telescopic link between the recess through the audio amplifier main part bottom, carries out spacingly to the third threaded rod, has guaranteed that the third threaded rod reciprocates along with the rotation of third threaded loop bar.

The sound box is characterized in that a protection mechanism is arranged on the inner side of the sound box main body and comprises a protection plate, a second connecting rod and a third spring telescopic rod, the protection plate is arranged in a groove on the outer wall of the sound box main body, the second connecting rod is arranged on one side of the protection plate, and the third spring telescopic rod is arranged at the tail end of the second connecting rod.

Through adopting above-mentioned technical scheme, when the fourth gear rotates, drive third spring telescopic link horizontal migration, through the fixed connection between second connecting rod and the third spring telescopic link for the second connecting rod drives guard plate horizontal migration, through the coincidence of two sets of guard plates, has ensured to shelter from the speaker, reaches waterproof dirt-proof purpose.

The invention further provides that the protection plate comprises a sleeve plate, two groups of sliding blocks and a second spring telescopic rod, wherein the sleeve plate is arranged in a groove on the outer wall of the sound box main body, the sliding blocks are arranged on the inner side of the sleeve plate, the second spring telescopic rod is arranged in the sleeve plate, the edges of the sliding blocks are arc-shaped, the diameter of the arc is the same as that of a loudspeaker, through grooves are formed in the inner side of one group of sliding blocks, and the thickness of the through grooves is larger than that of the other group of sliding blocks.

Through adopting above-mentioned technical scheme, when second connecting rod horizontal migration, through fixed connection between second connecting rod and the second spring telescopic link for telescopic movement is done to the second spring telescopic link, through the fixed connection between second spring telescopic link and the sliding block, guaranteed to drive sliding block horizontal migration, and through the inside logical groove of a set of sliding block, guaranteed when two sets of sliding blocks fold to the centre, make two sets of sliding blocks coincide, and set up to convex through the edge of sliding block, guaranteed when the device uses, close the inside logical groove of audio amplifier main part through the edge of sliding block, guaranteed that tone quality when using can not receive the influence.

The invention is further arranged that the tail end of the transmission rod is provided with a rack, and the length of the rack at the tail end of the transmission rod is the same as the circumference of the first gear.

Through adopting above-mentioned technical scheme, through the terminal rack of transfer line, guaranteed when the transfer line reciprocates, drive first gear and rotate, and the length of the terminal rack of transfer line is unanimous with the circumference length of first gear, has guaranteed to drive the rotation of second screw thread loop bar round.

The invention is further characterized in that the two ends of the first threaded sleeve rod are smooth cylinders, through grooves are formed in the outer sides of the smooth cylinders at the two ends, and the diameter of each through groove is larger than that of the second threaded rod.

Through adopting above-mentioned technical scheme, through the logical groove that first thread loop bar both ends drum outside set up, guaranteed when first threaded rod removes to first thread loop bar top and terminal, carry out the block through the logical groove of second threaded rod and first thread loop bar terminal to this is spacing to first threaded rod, has guaranteed that first threaded rod can not move downwards in the use.

The invention is further characterized in that grooves are formed in two sides of the sleeve in the third spring telescopic rod, a rack is arranged on one side, close to the fixing mechanism, of the telescopic column in the third spring telescopic rod, the rack arranged on the outer side of the third spring telescopic rod is connected with the fourth gear in a meshed mode, and a spring is arranged on the inner side of the third spring telescopic rod.

Through adopting above-mentioned technical scheme, constitute the meshing connection between rack and the fourth gear that one side that leans on fixed establishment set up through the flexible post in the third spring telescopic link, ensured when the fourth gear rotates for third spring telescopic link horizontal migration, with this drive sliding block horizontal migration.

In summary, the invention has the following advantages:

1. according to the invention, the stretching mechanism and the fixing mechanism are arranged, the first threaded rod is driven to move downwards by pressing the handle, the first threaded rod and the first threaded sleeve rod are connected through threads, so that the first threaded sleeve rod drives the second gear to rotate, the first group rotates through the transmission connection among the second gear, the transmission belt and the first group of third gears, the other group of third threaded sleeve rods rotate through the engagement of the other second gear and the other group of third gears, the third threaded rod is driven to move downwards until the fixing seat moves downwards, the roller of the device is separated from the joint with the ground, the device is fixed through the sucker at the bottom of the fixing seat, and the purpose of fixing the device is achieved, so that the device is prevented from collapsing and sliding and is damaged.

2. According to the invention, the fixing mechanism and the protection mechanism are arranged, when the third threaded loop bar rotates, the fourth gear is driven to rotate, the third spring telescopic bar is contracted through the meshing connection between the fourth gear and the third spring telescopic bar, the second connecting rod is horizontally moved, the second spring telescopic bar is driven to contract, the sliding block is contracted towards the inside of the loop bar, the loudspeaker is exposed out of the device, and when the sliding block reversely rotates, the two groups of sliding blocks are overlapped, so that the sliding block shields the loudspeaker, and the aim of waterproof and dustproof of the device is achieved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic structural diagram of a connection mode of the stretching mechanism and the fixing mechanism;

FIG. 4 is a cross-sectional view of a first threaded rod of the present invention;

FIG. 5 is an enlarged schematic view of the structure of the present invention at A;

FIG. 6 is a schematic view of a connecting cylinder according to the present invention;

FIG. 7 is a schematic view of a first threaded rod according to the present invention;

FIG. 8 is an enlarged schematic view of the structure of the present invention at B;

FIG. 9 is a schematic view of the internal structure of a second threaded shank according to the present invention;

FIG. 10 is a schematic structural diagram of a connection mode of the protection mechanism of the present invention;

fig. 11 is a cross-sectional view of a fender of the invention.

In the figure: 1. a sound box main body; 2. a speaker; 3. a stretching mechanism; 301. a handle; 3011. a handle housing; 3012. a first spring telescoping rod; 3013. a first connecting rod; 3014. a transmission rod; 3015. extruding a block; 302. a first threaded rod; 3021. a threaded rod body; 3022. a connecting cylinder; 3023. a second threaded shank; 3024. a first gear; 3025. a second threaded rod; 3026. a limiting block; 303. a first threaded shank; 304. a second gear; 305. a transmission belt; 4. a fixing mechanism; 401. a third threaded sleeve rod; 402. a third gear; 403. a fourth gear; 404. a third threaded rod; 405. a fixing seat; 5. a protective mechanism; 501. a protection plate; 5011. a sleeve plate; 5012. a sliding block; 5013. a second spring telescoping rod; 502. a second connecting rod; 503. and a third spring telescoping rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.

The utility model provides a conveniently fixed outdoor pull rod audio amplifier, as shown in fig. 1-11, including audio amplifier main part 1 and speaker 2, the outer wall of audio amplifier main part 1 is provided with the recess, the inboard of audio amplifier main part 1 is provided with stretching mechanism 3, and stretching mechanism 3 extends to the outside of audio amplifier main part 1, stretching mechanism 3 is including handle 301, first threaded rod 302, first screw thread loop 303, two sets of second gears 304 and drive belt 305, and handle 301 sets up in the top of audio amplifier main part 1, and first threaded rod 302 sets up in the below of handle 301, first screw thread loop 303 sets up in the outside of first threaded rod 302, and two sets of second gears 304 set up in the outside of first screw thread loop 303, drive belt 305 sets up in the outside of second gears 304, and the inboard of audio amplifier main part 1 is provided with fixed establishment 4, make first threaded rod 302 reciprocate through pulling and pressing handle 301, threaded rod connection between first threaded rod 302 and first screw thread loop 303 has been ensured when first 302 reciprocates, make first screw thread loop 303 rotate, make fixed establishment through first gear loop 303 and drive belt 4 fixed device.

Referring to fig. 2, 3, 4 and 5, the handle 301 includes a handle housing 3011, two sets of first spring telescopic rods 3012, a first connecting rod 3013, a transmission rod 3014 and a pressing block 3015, wherein the handle housing 3011 is disposed above the sound box main body 1, the two sets of first spring telescopic rods 3012 are disposed inside the handle housing 3011, the first connecting rod 3013 is connected between the two sets of first spring telescopic rods 3012, the transmission rod 3014 is disposed outside the first connecting rod 3013, the transmission rod 3014 extends to the inside of the first threaded rod 302, the pressing block 3015 is disposed at the end of the first spring telescopic rods 3012, and the pressing block 3015 extends to the outside of the handle housing 3011, and the first spring telescopic rods 3012 are retracted inwards through the pressing block 3015, so as to drive the first connecting rod 3013 to move upwards, thereby ensuring that the transmission rod 3014 is driven to move upwards.

Referring to fig. 2, fig. 3, fig. 4, fig. 6, fig. 7, fig. 8, and fig. 9, the first threaded rod 302 includes a threaded rod main body 3021, a connecting cylinder 3022, a second threaded rod 3023, a first gear 3024, two sets of second threaded rods 3025, and a stopper 3026, the threaded rod main body 3021 is disposed below the handle housing 3011, the connecting cylinder 3022 is disposed at the end of the threaded rod main body 3021, a limit groove is disposed at the outer side of the connecting cylinder 3022, the second threaded rod 3023 is disposed inside the connecting cylinder 3022, the first gear 3024 is disposed at the outer side of the second threaded rod 3023, two sets of second threaded rods 3025 are symmetrically disposed at the inner side of the first gear 3024, the stopper 3026 is disposed at the end of the second threaded rod 3025, and when the second threaded rod 3024 moves up and down, the second threaded rod 3023 rotates through the engaged connection between the rack at the end of the transmission rod 3014 and the first gear 3024, and when the second threaded rod 3024 moves up and down, thereby ensuring that the second threaded rod 3025 moves up and down.

Referring to fig. 1 and 3, the fixing mechanism 4 includes a third threaded rod 401, a third gear 402, a fourth gear 403, a third threaded rod 404 and a fixing seat 405, wherein the third threaded rod 401 is disposed at the inner side of the sound box main body 1, the third gear 402 is disposed at the outer side of the third threaded rod 401, the fourth gear 403 is disposed at the outer side of the third threaded rod 401, the third threaded rod 404 is disposed at the inner side of the third threaded rod 401, the fixing seat 405 is disposed at the tail end of the third threaded rod 404, a telescopic rod is disposed between the fixing seat 405 and a groove at the bottom of the sound box main body 1, the third threaded rod 404 in threaded connection with the third threaded rod 401 moves up and down through rotation of the third threaded rod 401, and it is ensured that the fixing seat 405 is driven to move up and down, so that when the device is used, the fixing of the device is ensured through attachment of a sucker at the bottom end of the fixing seat 405 to the ground, and the limit of the third threaded rod 404 is ensured through the telescopic rod disposed between the fixing seat 405 and a groove at the bottom of the sound box main body 1.

Referring to fig. 1, 10 and 11, the inner side of the sound box main body 1 is provided with a protection mechanism 5, the protection mechanism 5 comprises a protection plate 501, a second connecting rod 502 and a third spring telescopic rod 503, the protection plate 501 is arranged in a groove on the outer wall of the sound box main body 1, the second connecting rod 502 is arranged on one side of the protection plate 501, the third spring telescopic rod 503 is arranged at the tail end of the second connecting rod 502, when the fourth gear 403 rotates, the third spring telescopic rod 503 is driven to horizontally move, the protection plate 501 is driven to horizontally move by the second connecting rod 502 through the fixed connection between the second connecting rod 502 and the third spring telescopic rod 503, and the loudspeaker 2 is blocked by the superposition of the two groups of protection plates 501, so that the waterproof and dustproof purposes are achieved.

Referring to fig. 10 and 11, the protection plate 501 includes a sleeve board 5011, two sets of sliding blocks 5012 and a second spring telescopic rod 5013, the sleeve board 5011 is disposed in a groove on an outer wall of the sound box main body 1, the sliding blocks 5012 are disposed on an inner side of the sleeve board 5011, the second spring telescopic rod 5013 is disposed in an inner side of the sleeve board 5011, edges of the sliding blocks 5012 are circular arc-shaped, the diameter of the circular arc is the same as that of the loudspeaker 2, through grooves are formed in the inner side of one set of sliding blocks 5012, the thickness of the through grooves is larger than that of the other set of sliding blocks 5012, when the second connecting rod 502 horizontally moves, the second spring telescopic rod 5013 is fixedly connected with the second spring telescopic rod 5013, the sliding blocks 5012 are driven to horizontally move through the through grooves in the second spring telescopic rod 5013, when the two sets of sliding blocks 5012 are folded towards the middle, the edges of the two sets of sliding blocks 5012 are overlapped, and when the edges of the two sets of sliding blocks 5012 are not folded, and when the edges of the sliding blocks are arranged into circular arc-shaped, the sound quality is not affected by the circular grooves, and the sound quality of the sound box is ensured when the sound box is not affected by the circular grooves.

Referring to fig. 4 and 5, the end of the transmission rod 3014 is provided with a rack, and the length of the rack at the end of the transmission rod 3014 is the same as the circumference of the first gear 3024, so that when the transmission rod 3014 moves up and down, the first gear 3024 is driven to rotate, and the length of the rack at the end of the transmission rod 3014 is consistent with the circumference of the first gear 3024, so that the second threaded sleeve 3023 is driven to rotate for one turn.

Referring to fig. 4, 7 and 8, the two ends of the first threaded rod 303 are provided with smooth cylinders, the outer sides of the smooth cylinders at the two ends are provided with through grooves, the diameter of each through groove is larger than that of the second threaded rod 3025, and when the first threaded rod 302 moves to the top end and the tail end of the first threaded rod 303, the through grooves at the tail end of the first threaded rod 303 are clamped with the through grooves at the second threaded rod 3025, so that the first threaded rod 302 is limited, and the first threaded rod 302 is prevented from moving downwards in the use process.

Referring to fig. 10 and 11, grooves are formed on two sides of a sleeve in the third spring telescopic rod 503, a rack is arranged on one side of a telescopic column in the third spring telescopic rod 503, which is close to the fixing mechanism 4, and the rack arranged on the outer side of the third spring telescopic rod 503 is connected with the fourth gear 403 in a meshed manner, and a spring is arranged on the inner side of the third spring telescopic rod 503, and through the meshed connection between the rack arranged on one side of the telescopic column in the third spring telescopic rod 503, which is close to the fixing mechanism 4, and the fourth gear 403, the third spring telescopic rod 503 is enabled to move horizontally when the fourth gear 403 rotates, so that the sliding block 5012 is driven to move horizontally.

The working principle of the invention is as follows: when the loudspeaker box needs to be moved outdoors, an operator holds the handle shell 3011, at this time, the index finger of the operator is attached to the first extrusion block 3015, the middle finger is attached to the other extrusion block 3015, then the extrusion block 3015 is extruded towards the inside of the handle shell 3011, at this time, the first spring telescopic rod 3012 is contracted inwards, the first connecting rod 3013 moves upwards, the driving rod 3014 is driven to move upwards, when the driving rod 3014 moves upwards, the first gear 3024 is driven to rotate through the meshing connection between the rack at the tail end of the driving rod 3014 and the first gear 3024, the second threaded sleeve rod 3023 is driven to rotate, two groups of second threaded rods 3025 are contracted towards the inside of the second threaded sleeve rod 3023 through the threaded connection between the second threaded sleeve rod 3023, at this time, the limiting block 3026 is positioned in the limiting groove on the outer side of the connecting cylinder 3022, the second threaded rod 3025 is positioned on the inner side of the threaded rod main body 3021, then the operator pulls the handle casing 3011 upwards, at this time, pull the first threaded rod 302 to move upwards, through the threaded connection between the first threaded rod 302 and the first threaded rod 303, the first threaded rod 303 rotates, so as to drive the two sets of second gears 304 to rotate, through the transmission connection between the first set of second gears 304, the transmission belt 305 and the third gears 402, the first set of third gears 402 rotate, and at the same time, the other set of second gears 304 and the third gears 402 are in meshed connection, so that the two sets of third threaded rods 401 rotate, and the third threaded rod 401 and the third threaded rod 404 are in threaded connection, so that the two sets of third threaded rods 404 shrink inwards the third threaded rod 401, the fixing seat 405 is positioned in the groove at the bottom of the sound box main body 1 until the bottom of the fixing seat 405 is leveled with the bottom of the sound box main body 1, at this time, the second threaded rod 3025 drives the stopper 3026 to reach the groove on the upper inner wall of the first threaded rod 303, then releases the pressing block 3015, so that the first spring expansion rod 3012 extends downward, until the second threaded rod 3025 is driven to extend outward, so that the stopper 3026 is positioned in the groove on the upper inner wall of the first threaded rod 303, thereby limiting the second threaded rod 3025, then pulls the handle 301 to move by the roller driving device, when reaching the designated position, uses the device, the user through the pressing block 3015, causes the first spring expansion rod 3012 to shrink inward, drives the transmission rod 3014 to move upward, causes the first gear 3024 to rotate, causes the second threaded rod 3025 to rotate inward of the second threaded rod 3023, then pushes the handle housing 3011 downward, causes the second threaded rod 3025 to separate from the groove on the inner side of the top of the first threaded rod 303, then the first threaded rod 302 moves downwards to drive the first threaded sleeve 303 to rotate reversely, the second gear 304 drives the third gear 402 to rotate reversely, the third threaded sleeve 401 is rotated reversely until the third threaded rod 404 is driven to move downwards, the fixed seat 405 moves downwards until the roller is higher than the ground, at the moment, the second threaded rod 3025 moves below the first threaded sleeve 303, the extrusion block 3015 is released, the second threaded rod 3025 drives the limiting block 3026 to reset, the limiting block 3026 is positioned in a groove in the first threaded sleeve 303, and after the device is used up, the third threaded sleeve 401 rotates to drive the fourth gear 403 to rotate, the fourth gear 403 is meshed with a rack on the outer side of the third spring telescopic rod 503, the third spring telescopic rod 503 drives the second connecting rod 502 to move towards the middle, make second connecting rod 502 drive the outside extension of second spring telescopic link 5013 for two sets of sliding block 5012 laminating, first set of sliding block 5012 inboard is provided with the recess, and the thickness of second set of sliding block 5012 is unanimous with the inside recess of first set of sliding block 5012, makes two sets of sliding block 5012 coincidence, so that guard plate 501 shelters from speaker 2, so that reaches dustproof and waterproof purpose to the device.

Although embodiments of the invention have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the invention as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the invention, provided that such modifications are within the scope of the appended claims.

Claims (9)

1. The utility model provides an outdoor pull rod audio amplifier of convenient fixed, includes audio amplifier main part (1) and speaker (2), its characterized in that: the outer wall of audio amplifier main part (1) is provided with the recess, and the inboard of audio amplifier main part (1) is provided with stretching mechanism (3), and stretching mechanism (3) extend to the outside of audio amplifier main part (1), stretching mechanism (3) are including handle (301), first threaded rod (302), first screw thread loop bar (303), two sets of second gears (304) and drive belt (305), and handle (301) set up in the top of audio amplifier main part (1), and first threaded rod (302) set up in the below of handle (301), first screw thread loop bar (303) set up in the outside of first threaded rod (302), and two sets of second gears (304) set up in the outside of first screw thread loop bar (303), and drive belt (305) set up in the outside of second gears (304), and the inboard of audio amplifier main part (1) is provided with fixed establishment (4).

2. The outdoor pull rod sound box convenient to fix according to claim 1, wherein: handle (301) is including handle shell (3011), two sets of first spring telescopic link (3012), head rod (3013), transfer line (3014) and extrusion piece (3015), and handle shell (3011) set up in the top of audio amplifier main part (1), and two sets of first spring telescopic link (3012) set up in the inside of handle shell (3011), and head rod (3013) connect between two sets of first spring telescopic link (3012), transfer line (3014) set up in the outside of head rod (3013), and transfer line (3014) extend to the inside of first threaded rod (302), extrusion piece (3015) set up in the end of head rod (3012), and extrusion piece (3015) extend to the outside of handle shell (3011).

3. The outdoor pull rod sound box convenient to fix according to claim 1, wherein: the first threaded rod (302) comprises a threaded rod main body (3021), a connecting cylinder (3022), a second threaded sleeve rod (3023), a first gear (3024), two groups of second threaded rods (3025) and a limiting block (3026), the threaded rod main body (3021) is arranged below a handle shell (3011), the connecting cylinder (3022) is arranged at the tail end of the threaded rod main body (3021), a limiting groove is formed in the outer side of the connecting cylinder (3022), the second threaded sleeve rod (3023) is arranged in the connecting cylinder (3022), the first gear (3024) is arranged in the outer side of the second threaded sleeve rod (3023), two groups of second threaded rods (3025) are symmetrically arranged in the inner side of the first gear (3024), and the limiting block (3026) is arranged at the tail end of the second threaded rod (3025).

4. The outdoor pull rod sound box convenient to fix according to claim 1, wherein: the fixing mechanism (4) comprises a third threaded sleeve rod (401), a third gear (402), a fourth gear (403), a third threaded rod (404) and a fixing seat (405), wherein the third threaded sleeve rod (401) is arranged on the inner side of the sound box main body (1), the third gear (402) is arranged on the outer side of the third threaded sleeve rod (401), the fourth gear (403) is arranged on the outer side of the third threaded sleeve rod (401), the third threaded rod (404) is arranged on the inner side of the third threaded sleeve rod (401), the fixing seat (405) is arranged at the tail end of the third threaded rod (404), and a telescopic rod is arranged between the fixing seat (405) and a groove at the bottom of the sound box main body (1).

5. The outdoor pull rod sound box convenient to fix according to claim 1, wherein: the inside of audio amplifier main part (1) is provided with protection machanism (5), and protection machanism (5) are including guard plate (501), second connecting rod (502) and third spring telescopic link (503), and guard plate (501) set up in the recess of audio amplifier main part (1) outer wall, and second connecting rod (502) set up in one side of guard plate (501), and third spring telescopic link (503) set up in the end of second connecting rod (502).

6. The outdoor pull rod sound box convenient to fix according to claim 1, wherein: guard plate (501) is including bushing (5011), two sets of sliding block (5012) and second spring telescopic link (5013), and bushing (5011) sets up in the recess of audio amplifier main part (1) outer wall, sliding block (5012) are provided with the inboard of bushing (5011), and second spring telescopic link (5013) set up in the inside of bushing (5011), the edge of sliding block (5012) sets up to convex, and the diameter of circular arc is the same with the diameter of speaker (2), a set of sliding block (5012) inboard is provided with logical groove, and logical groove thickness is greater than the thickness of another set of sliding block (5012).

7. The outdoor pull rod sound box convenient to fix according to claim 1, wherein: the tail end of the transmission rod (3014) is provided with a rack, and the length of the rack at the tail end of the transmission rod (3014) is the same as the circumference of the first gear (3024).

8. The outdoor pull rod sound box convenient to fix according to claim 1, wherein: the two ends of the first threaded sleeve rod (303) are smooth cylinders, through grooves are formed in the outer sides of the smooth cylinders at the two ends, and the diameter of each through groove is larger than that of the second threaded rod (3025).

9. The outdoor pull rod sound box convenient to fix according to claim 1, wherein: grooves are formed in two sides of a sleeve in the third spring telescopic rod (503), racks are arranged on one side, close to the fixing mechanism (4), of a telescopic column in the third spring telescopic rod (503), the racks arranged on the outer side of the third spring telescopic rod (503) are connected with a fourth gear (403) in a meshed mode, and springs are arranged on the inner side of the third spring telescopic rod (503).