CN111343555A - Lifting device of indoor music loudspeaker - Google Patents
Lifting device of indoor music loudspeaker Download PDFInfo
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- CN111343555A CN111343555A CN202010131585.6A CN202010131585A CN111343555A CN 111343555 A CN111343555 A CN 111343555A CN 202010131585 A CN202010131585 A CN 202010131585A CN 111343555 A CN111343555 A CN 111343555A
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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
- H04R27/00—Public address systems
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Abstract
The invention discloses a lifting device of an indoor music loudspeaker, which comprises a fixed seat and a motor, wherein the upper surface of the fixed seat is provided with the motor and a screw sleeve, the screw sleeve is arranged on the left side of the motor, the bottom end of the motor is connected with the upper surface of the fixed seat, the top end of the screw sleeve is sleeved with a driven bevel gear, the inner side of the screw sleeve is provided with a screw rod in a penetrating manner, the output end of the motor is sleeved with a driving bevel gear, the bottom end of the screw rod is sleeved with a connecting frame, two sides of the connecting frame are both provided with first connecting piles, the bottom end of each first connecting pile is provided with a fixed plate, two sides of each fixed plate are both provided with second connecting piles, the inner sides of the second connecting piles are provided with buckles, the bottom ends of the fixed plates are provided with connecting seats, and. The lifting device of the indoor music loudspeaker is convenient to disassemble and assemble quickly, and is convenient to adjust the angle of the indoor music loudspeaker, so that the sound effect is better.
Description
Technical Field
The invention relates to the technical field of indoor music loudspeakers, in particular to a lifting device of an indoor music loudspeaker.
Background
In large indoor places such as large stairstep classrooms, meeting rooms, auditoriums and the like, because of the large indoor space, the indoor music loudspeakers are generally adopted, and the sound boxes or the loudspeakers are placed in the corners of the indoor places.
This, however, leads to two problems: firstly, because the sound box or the loudspeaker is arranged in the corner of the indoor place, the sound information of the played music and the like can not be clearly heard at each corner of the indoor space; secondly, the sound or the loudspeaker is arranged in the corner of the indoor place, which not only occupies the space, but also influences the beauty.
Based on the technical problems in the prior art, the invention discloses a lifting device of an indoor music loudspeaker, which solves the problems in future.
Disclosure of Invention
The invention aims to provide a lifting device of an indoor music loudspeaker, which solves the problems that the installation is not convenient enough, the disassembly and the maintenance are inconvenient, and the installation angle cannot be adjusted in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a lifting device of indoor music megaphone, includes fixing base and motor, the upper surface of fixing base is provided with motor and silk braid, and the silk braid sets up in the left side of motor, the bottom of motor passes through the upper surface connection of bolt and fixing base, the top of silk braid is cup jointed from the bevel gear, the inboard of silk braid is run through and is provided with the lead screw, the initiative bevel gear has been cup jointed to the output of motor, the bottom cover of lead screw is equipped with the link, two of link then all are provided with first connecting pile, and the bottom of first connecting pile is provided with the fixed plate, the both sides of fixed plate all are equipped with the second connecting pile, the inboard of second connecting pile is equipped with the buckle, the bottom of fixed plate is provided with the connecting seat, the draw-in groove has been seted up to the lower surface of.
Preferably, the upper surface of fixing base is provided with the protective cover through the screw, and the output of motor runs through the protective cover.
Preferably, the upper surface of protective cover is provided with the dust ring, the dust ring cover is located on the surface of lead screw.
Preferably, the driving bevel gear is meshed with the driven bevel gear, and the bottom end of the thread sleeve is rotatably connected with the fixed seat through a bearing.
Preferably, the screw rod is connected with the screw sleeve through threads, and the screw rod and the screw sleeve form a lifting structure.
Preferably, the bottom end of the screw rod and the connecting frame form a fixed structure, and the connecting frame and the first connecting pile form a rotating structure.
Preferably, a butterfly bolt penetrates through the inner side of the first connecting pile and is connected with the connecting frame through threads.
Preferably, the upper surface of the fixing plate is provided with a third connecting pile, the inner side of the third connecting pile is hinged with a guide rod, and the top end of the guide rod penetrates through the surface of the fixing seat.
Preferably, buckle and draw-in groove block, the top of buckle is run through and is provided with the connecting axle, the surface cover of connecting axle is equipped with the torsional spring, the one end and the connecting axle of torsional spring are connected, the other end and the buckle of torsional spring are connected, elastic construction is constituteed with the torsional spring to the buckle.
Preferably, in order to better realize the rotation between the screw rod and the wire sleeve, the material of the screw rod is 45# steel subjected to thermal refining, and the material of the wire sleeve is one of tin bronze, tin-zinc bronze and aluminum-tin bronze so as to reduce the friction force. The surface hardness Y1 of the matching part of the screw rod and the screw sleeve is HB 215-247; surface roughness Ra1 is 0.4-0.8 micron; the surface roughness Ra2 of the screw sleeve at the matching part of the screw rod is 0.4-0.8 micrometer. In particular, the hardness Y1 and the surface roughness Ra1 satisfy the following conditions: y1 & Ra1 is 87.9-196.5.
Preferably, in order to further reduce the fit friction force and realize efficient rotation between the screw rod and the screw sleeve, the following relations are satisfied among the surface hardness Y1, the surface roughness Ra1 and the surface roughness Ra 2:
Y11/3＝α·π(Ra1+Ra2)；
wherein α is a relation coefficient, and the value range is 1.3-2.4.
Preferably, a groove is formed in an internal thread, matched with the screw rod, of the screw sleeve, lubricating grease is coated in the groove, and the lubricating grease is one of fluorine silicone grease, silicone grease and fluorine grease; when the screw sleeve is matched with the screw rod, the pressure P of the lubricating grease in the groove is 160-370 KPa.
Preferably, in order to further reduce the fitting friction force and realize efficient rotation between the screw rod and the thread sleeve, the following relations are satisfied among the pressure P of the lubricating grease in the groove when the thread sleeve is fitted with the screw rod, the surface hardness Y1 at the fitting position of the screw rod and the thread sleeve, the surface roughness Ra1 and the surface roughness Ra 2:
P/Y1＝β·(Ra1/Ra2)；
wherein α is an adjusting factor, and the value range is 0.35-3.24.
Compared with the prior art, the lifting device of the indoor music loudspeaker has the advantages that:
(1) the lifting device of the indoor music loudspeaker is provided with the connecting seat, the buckle and the clamping groove, the connecting seat is arranged at the bottom end of the fixing plate and is clamped with the clamping groove through the buckle, so that the connecting seat is connected with the fixing plate, the indoor music loudspeaker can be firstly arranged on the connecting seat and then is quickly clamped with the clamping groove through the buckle, the installation can be completed, and the indoor music loudspeaker can be detached only by pulling the buckle outwards to remove the limit of the connecting seat during detachment, so that the effect of facilitating quick detachment is achieved.
(2) The lifting device of the indoor music loudspeaker is provided with the connecting frame, the first connecting pile and the butterfly bolt, the connecting frame is sleeved at the bottom end of the screw rod, and the connecting frame is rotatably connected with the first connecting pile through the butterfly bolt, so that the fixing plate can rotate on the connecting frame through the first connecting pile to adjust the inclination angle, and the effect of conveniently adjusting the installation angle is achieved.
(3) The lifting device of the indoor music loudspeaker reduces the friction force between the screw rod and the screw sleeve by setting the material and the surface roughness of the screw rod and the screw sleeve and setting the relation between the hardness Y1 and the surface roughness Ra 1.
(4) According to the lifting device of the indoor music loudspeaker, the matching friction force is further reduced by setting the relation met by the surface hardness Y1, the surface roughness Ra1 and the surface roughness Ra2, and the efficient rotation between the screw rod and the screw sleeve is realized.
(5) According to the lifting device of the indoor music loudspeaker, the groove is formed in the internal thread, matched with the screw rod, of the screw sleeve, and when the screw sleeve is matched with the screw rod, the pressure P of lubricating grease in the groove, the surface hardness Y1, the surface roughness Ra1 and the surface roughness Ra2 at the matched part of the screw rod and the screw sleeve meet the requirements, so that the matching friction force is further reduced, and the efficient rotation between the screw rod and the screw sleeve is realized.
Drawings
Fig. 1 is a schematic front view of the structure of the present invention.
Fig. 2 is an expanded cross-sectional view of the structure of the present invention.
Fig. 3 is an enlarged view of the structure at a in fig. 2 according to the present invention.
Fig. 4 is an enlarged view of the structure at B in fig. 2 according to the present invention.
In the figure: 1. a fixed seat; 2. a motor; 3. driving bevel gears; 4. sleeving the silk; 5. driven bevel gears; 6. a screw rod; 7. a protective cover; 8. a dust ring; 9. a connecting frame; 10. a fixing plate; 11. a first connecting pile; 12. a butterfly bolt; 13. a connecting seat; 14. a second connecting pile; 15. buckling; 16. a connecting shaft; 17. a torsion spring; 18. a third connecting pile; 19. a guide bar; 20. a clamping groove.
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 a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-4, a lifting device for an indoor music loudspeaker comprises a fixed base 1 and a motor 2, wherein the motor 2 and a thread sleeve 4 are arranged on the upper surface of the fixed base 1, the thread sleeve 4 is arranged on the left side of the motor 2, the bottom end of the motor 2 is connected with the upper surface of the fixed base 1 through a bolt, a driven bevel gear 5 is sleeved on the top end of the thread sleeve 4, a lead screw 6 penetrates through the inner side of the thread sleeve 4, a protective cover 7 is arranged on the upper surface of the fixed base 1 through a screw, the output end of the motor 2 penetrates through the protective cover 7, a dust ring 8 is arranged on the upper surface of the protective cover 7, the dust ring 8 is sleeved on the outer surface of the lead screw 6, as shown in fig. 1-2, the protective cover 7 is mounted on the fixed base 1, parts in the protective cover 7 can be protected, and the dust ring 8 plays a role in.
The output of motor 2 has cup jointed initiative umbrella tooth 3, initiative umbrella tooth 3 and the meshing of driven umbrella tooth 5, the bottom of silk braid 4 is passed through the bearing and is rotated with fixing base 1 and be connected, lead screw 6 passes through threaded connection with silk braid 4, lead screw 6 constitutes elevation structure with silk braid 4, as shown in figure 4, through the driven umbrella tooth 5 rotation of initiative umbrella tooth 3 drive, can make driven umbrella tooth 5 drive silk braid 4 rotate, make the internal thread in the silk braid 4 stir the silk groove on lead screw 6 surface, make lead screw 6 go up and down at the 4 internal rotations of silk braid.
The bottom cover of lead screw 6 is equipped with link 9, link 9's two then all are provided with first spud 11, and the bottom of first spud 11 is provided with fixed plate 10, the rotating-structure is constituteed with link 9 to the bottom of lead screw 6, link 9 constitutes rotating-structure with first spud 11, the inboard of first spud 11 runs through and is provided with butterfly bolt 12, and butterfly bolt 12 passes through threaded connection with link 9, as shown in fig. 1-2, it is fixed to be connected with link 9 through butterfly bolt 12, can make first spud 11 and link 9 laminating fixed, through lead screw 6 and link 9 fixed connection.
As shown in fig. 1-2, the third connecting pile 18 is mounted on the fixing plate 10 and is hinged to the bottom end of the guide rod 19, so that the third connecting pile 18 and the guide rod 19 do not hinder the fixing plate 10 from adjusting the inclination angle, and the fixing plate 10 is more stable during lifting.
The two sides of the fixing plate 10 are provided with second connecting piles 14, the inner sides of the second connecting piles 14 are provided with buckles 15, the bottom end of the fixing plate 10 is provided with a connecting seat 13, the lower surface of the connecting seat 13 is provided with a clamping groove 20, the buckles 15 are clamped with the clamping groove 20, the top end of each buckle 15 is provided with a connecting shaft 16 in a penetrating mode, the outer surface of each connecting shaft 16 is sleeved with a torsion spring 17, one end of each torsion spring 17 is fixedly connected with the connecting shaft 16, the other end of each torsion spring 17 is connected with the corresponding buckle 15, each buckle 15 and the corresponding torsion spring 17 form an elastic structure, as shown in fig. 2-3, the connecting seat 13 can be connected with the fixing plate 10 through the clamping of the buckles 15 and the clamping grooves 20, and the torsion springs 17 play a role of providing elasticity.
The working principle is as follows: firstly, the fixed seat 1 is connected with the indoor roofs of large-scale ladder classrooms, meeting rooms, auditoriums and the like, and particularly is connected and fixed with a keel in a suspended ceiling of the indoor roofs. The position that fixing base 1 and roof are connected is confirmed as required, can set up the elevating gear of a plurality of indoor music megaphones on the roof moreover to guarantee that each indoor space corner homoenergetic obtains sound signals such as music clearly. The motor 2 is electrically connected with an external control switch through a lead, and then the indoor music loudspeaker is connected with the connecting seat 13 through a screw.
The upper surface of connecting seat 13 is attached to fixed plate 10, buckle 15 and clamping groove 20 are quickly clamped, installation can be completed, motor 2 is powered on and rotates by opening an external control switch, driving bevel gear 3 drives driven bevel gear 5 to rotate, and then screw sleeve 4 drives screw rod 6 to rotate, so that screw rod 6 is lifted in screw sleeve 4, and fixed plate 10 drives indoor music loudspeaker to lift through connecting seat 13.
When the installation angle of the indoor music loudspeaker needs to be adjusted, the butterfly bolt 12 only needs to be unscrewed, the first connecting pile 11 is connected with the connecting frame 9 loosely, the fixing plate 10 can be rotated to adjust the inclination angle, and then the installation angle of the indoor music loudspeaker is adjusted.
Example 2
The utility model provides a lifting device of indoor music megaphone, including fixing base 1 and motor 2, the upper surface of fixing base 1 is provided with motor 2 and silk braid 4, and silk braid 4 sets up in the left side of motor 2, the bottom of motor 2 is fixed with the upper surface connection of fixing base 1 through the bolt, the top of silk braid 4 has cup jointed driven umbrella tooth 5, the inboard of silk braid 4 runs through and is provided with lead screw 6, the upper surface of fixing base 1 has protective cover 7 through the screw fixation, and the output of motor 2 runs through protective cover 7, the upper surface of protective cover 7 is provided with dust ring 8, dust ring 8 overlaps and locates on the surface of lead screw 6, as shown in fig. 1-2, through installing protective cover 7 on fixing base 1, can protect the part in the protective cover 7, dust ring 8 plays the effect that increases the leakproofness between lead screw 6 and the protective cover 7.
The output of motor 2 has cup jointed initiative umbrella tooth 3, initiative umbrella tooth 3 and the meshing of driven umbrella tooth 5, the bottom of silk braid 4 is passed through the bearing and is rotated with fixing base 1 and be connected, lead screw 6 passes through threaded connection with silk braid 4, lead screw 6 constitutes elevation structure with silk braid 4, as shown in figure 4, through the driven umbrella tooth 5 rotation of initiative umbrella tooth 3 drive, can make driven umbrella tooth 5 drive silk braid 4 rotate, make the internal thread in the silk braid 4 stir the silk groove on lead screw 6 surface, make lead screw 6 go up and down at the 4 internal rotations of silk braid.
The bottom cover of lead screw 6 is equipped with link 9, link 9's two then all are provided with first spud 11, and the bottom of first spud 11 is provided with fixed plate 10, and the fixed knot of bottom and link 9 constitution of lead screw 6 constructs, and link 9 constitutes rotating-structure with first spud 11, and the inboard of first spud 11 runs through and is provided with butterfly bolt 12, and butterfly bolt 12 passes through threaded connection with link 9, as shown in fig. 1-2, it is fixed to be connected with link 9 through butterfly bolt 12, can make first spud 11 and link 9 laminating fixed. The screw rod 6 is fixedly connected with the connecting frame 9.
As shown in fig. 1-2, the third connecting pile 18 is mounted on the fixing plate 10 and is hinged to the bottom end of the guide rod 19, so that the third connecting pile 18 and the guide rod 19 do not hinder the fixing plate 10 from adjusting the inclination angle, and the fixing plate 10 is more stable during lifting.
The two sides of the fixing plate 10 are provided with second connecting piles 14, the inner sides of the second connecting piles 14 are provided with buckles 15, the bottom end of the fixing plate 10 is provided with a connecting seat 13, the lower surface of the connecting seat 13 is provided with a clamping groove 20, the buckles 15 are clamped with the clamping groove 20, the top end of each buckle 15 is provided with a connecting shaft 16 in a penetrating mode, the outer surface of each connecting shaft 16 is sleeved with a torsion spring 17, one end of each torsion spring 17 is fixedly connected with the connecting shaft 16, the other end of each torsion spring 17 is fixedly connected with the corresponding buckle 15, each buckle 15 and the corresponding torsion spring 17 form an elastic structure, as shown in fig. 2-3, the connecting seat 13 can be fixedly connected with the fixing plate 10 through the clamping of the buckles 15 and the clamping grooves 20, and the torsion springs 17 play a role of providing elasticity.
In order to better realize the rotation between the screw rod and the screw sleeve, the screw rod is made of 45# steel subjected to thermal refining, and the screw sleeve is made of one of tin bronze, tin-zinc bronze and aluminum-tin bronze so as to reduce the friction force. The surface hardness Y1 of the matching part of the screw rod and the screw sleeve is HB 215-247; surface roughness Ra1 is 0.4-0.8 micron; the surface roughness Ra2 of the screw sleeve at the matching part of the screw rod is 0.4-0.8 micrometer. In particular, the hardness Y1 and the surface roughness Ra1 satisfy the following conditions: y1 & Ra1 is 87.9-196.5.
In order to further reduce the fit friction force and realize efficient rotation between the screw rod and the screw sleeve, the following relations are satisfied among the surface hardness Y1, the surface roughness Ra1 and the surface roughness Ra 2:
Y11/3＝α·π(Ra1+Ra2)；
wherein α is a relation coefficient, and the value range is 1.3-2.4.
A groove is formed in an internal thread, matched with the screw rod, of the screw sleeve, lubricating grease is coated in the groove, and the lubricating grease is one of fluorine silicone grease, silicone grease and fluorine grease; when the screw sleeve is matched with the screw rod, the pressure P of the lubricating grease in the groove is 160-370 KPa.
Example 3
The utility model provides a lifting device of indoor music megaphone, including fixing base 1 and motor 2, the upper surface of fixing base 1 is provided with motor 2 and silk braid 4, and silk braid 4 sets up in the left side of motor 2, the bottom of motor 2 is fixed with the upper surface connection of fixing base 1 through the bolt, the top of silk braid 4 has cup jointed driven umbrella tooth 5, the inboard of silk braid 4 runs through and is provided with lead screw 6, the upper surface of fixing base 1 has protective cover 7 through the screw fixation, and the output of motor 2 runs through protective cover 7, the upper surface of protective cover 7 is provided with dust ring 8, dust ring 8 overlaps and locates on the surface of lead screw 6, as shown in fig. 1-2, through installing protective cover 7 on fixing base 1, can protect the part in the protective cover 7, dust ring 8 plays the effect that increases the leakproofness between lead screw 6 and the protective cover 7.
The output of motor 2 has cup jointed initiative umbrella tooth 3, initiative umbrella tooth 3 and the meshing of driven umbrella tooth 5, the bottom of silk braid 4 is passed through the bearing and is rotated with fixing base 1 and be connected, lead screw 6 passes through threaded connection with silk braid 4, lead screw 6 constitutes elevation structure with silk braid 4, as shown in figure 4, through the driven umbrella tooth 5 rotation of initiative umbrella tooth 3 drive, can make driven umbrella tooth 5 drive silk braid 4 rotate, make the internal thread in the silk braid 4 stir the silk groove on lead screw 6 surface, make lead screw 6 go up and down at the 4 internal rotations of silk braid.
The bottom cover of lead screw 6 is equipped with link 9, link 9's two then all are provided with first spud 11, and the bottom of first spud 11 is provided with fixed plate 10, the rotating-structure is constituteed with link 9 to the bottom of lead screw 6, link 9 constitutes rotating-structure with first spud 11, the inboard of first spud 11 runs through and is provided with butterfly bolt 12, and butterfly bolt 12 passes through threaded connection with link 9, as shown in fig. 1-2, it is fixed to be connected with link 9 through butterfly bolt 12, can make first spud 11 and link 9 laminating fixed, through lead screw 6 and link 9 fixed connection.
As shown in fig. 1-2, the third connecting pile 18 is mounted on the fixing plate 10 and is hinged to the bottom end of the guide rod 19, so that the third connecting pile 18 and the guide rod 19 do not hinder the fixing plate 10 from adjusting the inclination angle, and the fixing plate 10 is more stable during lifting.
The two sides of the fixing plate 10 are provided with second connecting piles 14, the inner sides of the second connecting piles 14 are provided with buckles 15, the bottom end of the fixing plate 10 is provided with a connecting seat 13, the lower surface of the connecting seat 13 is provided with a clamping groove 20, the buckles 15 are clamped with the clamping groove 20, the top end of each buckle 15 is provided with a connecting shaft 16 in a penetrating mode, the outer surface of each connecting shaft 16 is sleeved with a torsion spring 17, one end of each torsion spring 17 is fixedly connected with the connecting shaft 16, the other end of each torsion spring 17 is fixedly connected with the corresponding buckle 15, each buckle 15 and the corresponding torsion spring 17 form an elastic structure, as shown in fig. 2-3, the connecting seat 13 can be fixedly connected with the fixing plate 10 through the clamping of the buckles 15 and the clamping grooves 20, and the torsion springs 17 play a role of providing elasticity.
In order to better realize the rotation between the screw rod and the screw sleeve, the screw rod is made of 45# steel subjected to thermal refining, and the screw sleeve is made of one of tin bronze, tin-zinc bronze and aluminum-tin bronze so as to reduce the friction force. The surface hardness Y1 of the matching part of the screw rod and the screw sleeve is HB 215-247; surface roughness Ra1 is 0.4-0.8 micron; the surface roughness Ra2 of the screw sleeve at the matching part of the screw rod is 0.4-0.8 micrometer. In particular, the hardness Y1 and the surface roughness Ra1 satisfy the following conditions: y1 & Ra1 is 87.9-196.5.
In order to further reduce the fit friction force and realize efficient rotation between the screw rod and the screw sleeve, the following relations are satisfied among the surface hardness Y1, the surface roughness Ra1 and the surface roughness Ra 2:
Y11/3＝α·π(Ra1+Ra2)；
wherein α is a relation coefficient, and the value range is 1.3-2.4.
A groove is formed in an internal thread, matched with the screw rod, of the screw sleeve, lubricating grease is coated in the groove, and the lubricating grease is one of fluorine silicone grease, silicone grease and fluorine grease; when the screw sleeve is matched with the screw rod, the pressure P of the lubricating grease in the groove is 160-370 KPa.
In order to further reduce the matching friction force and realize the efficient rotation between the screw rod and the screw sleeve, the following relations are satisfied among the pressure P of lubricating grease in the groove when the screw sleeve is matched with the screw rod, the surface hardness Y1 at the matching position of the screw rod and the screw sleeve, the surface roughness Ra1 and the surface roughness Ra 2:
P/Y1＝β·(Ra1/Ra2)；
wherein α is an adjusting factor, and the value range is 0.35-3.24.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a lifting device of indoor music megaphone, includes fixing base (1) and motor (2), its characterized in that: the upper surface of the fixing seat (1) is provided with a motor (2) and a screw sleeve (4), the screw sleeve (4) is arranged on the left side of the motor (2), the bottom end of the motor (2) is connected with the upper surface of the fixing seat (1), the top end of the screw sleeve (4) is sleeved with a driven umbrella tooth (5), the inner side of the screw sleeve (4) is provided with a lead screw (6) in a penetrating manner, the output end of the motor (2) is sleeved with a driving umbrella tooth (3), the bottom end of the lead screw (6) is sleeved with a connecting frame (9), two sides of the connecting frame (9) are both provided with first connecting piles (11), the bottom ends of the first connecting piles (11) are provided with fixing plates (10), two sides of the fixing plates (10) are both provided with second connecting piles (14), the inner sides of the second connecting piles (14) are provided with buckles (15), the bottom ends of the fixing plates (10) are provided with connecting seats, the lower surface of the connecting seat (13) is provided with a clamping groove (20).
2. The lifting device of an indoor music loudspeaker according to claim 1, characterized in that: the upper surface of fixing base (1) is provided with protective cover (7), and protective cover (7) are run through to the output of motor (2).
3. The lifting device of an indoor music loudspeaker according to claim 1, characterized in that: the driving bevel gear (3) is meshed with the driven bevel gear (5), and the bottom end of the thread sleeve (4) is rotatably connected with the fixed seat (1) through a bearing.
4. The lifting device of an indoor music loudspeaker according to claim 1, characterized in that: the bottom of lead screw (6) constitutes fixed knot with link (9) and constructs, link (9) and first connecting pile (11) constitute rotating-structure.
5. The lifting device of an indoor music loudspeaker according to claim 1, characterized in that: the upper surface of the fixing plate (10) is provided with a third connecting pile (18), and the inner side of the third connecting pile (18) is hinged with a guide rod (19).
6. The lifting device of an indoor music loudspeaker according to claim 1, characterized in that: buckle (15) and draw-in groove (20) block, the top of buckle (15) is run through and is provided with connecting axle (16), the surface cover of connecting axle (16) is equipped with torsional spring (17), the one end and the connecting axle (16) of torsional spring (17) are connected, the other end and the buckle (15) of torsional spring (17) are connected, buckle (15) and torsional spring (17) constitute elastic construction.
7. A lifting device of an indoor music loudspeaker according to claim 5, characterized in that: the top end of the guide rod (19) penetrates through the surface of the fixed seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010131585.6A CN111343555B (en) | 2020-02-28 | 2020-02-28 | Lifting device of indoor music loudspeaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010131585.6A CN111343555B (en) | 2020-02-28 | 2020-02-28 | Lifting device of indoor music loudspeaker |
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| CN111343555A true CN111343555A (en) | 2020-06-26 |
| CN111343555B CN111343555B (en) | 2021-05-07 |
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| CN202010131585.6A Expired - Fee Related CN111343555B (en) | 2020-02-28 | 2020-02-28 | Lifting device of indoor music loudspeaker |
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- 2020-02-28 CN CN202010131585.6A patent/CN111343555B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN111343555B (en) | 2021-05-07 |
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