CN219549509U - Elastic tensioning mechanism for prolonging service life of synchronous belt and stage lamp - Google Patents
Elastic tensioning mechanism for prolonging service life of synchronous belt and stage lamp Download PDFInfo
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- CN219549509U CN219549509U CN202320511945.4U CN202320511945U CN219549509U CN 219549509 U CN219549509 U CN 219549509U CN 202320511945 U CN202320511945 U CN 202320511945U CN 219549509 U CN219549509 U CN 219549509U
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Abstract
The utility model discloses an elastic tensioning mechanism for prolonging the service life of a synchronous belt and a stage lamp, which comprise a mounting plate, a motor assembly, a driven belt pulley assembly and a tensioning adjusting assembly, wherein the motor assembly can move relative to the mounting plate, the motor assembly is connected with the driven belt pulley assembly through the synchronous belt, the tensioning adjusting assembly comprises a tensioning part and an eccentric adjusting shaft, the tensioning part comprises a tensioning push plate, a tensioning supporting plate and an elastic part, the eccentric adjusting shaft is eccentrically arranged between the tensioning push plate and the tensioning supporting plate, and the elastic part is arranged between the tensioning supporting plate and the motor assembly and provides tensioning force for the synchronous belt. The damping deformation of the elastic component can absorb the transient impact caused by huge acceleration, thereby reducing the negative effect of transient overload on the synchronous belt, avoiding the reduction of the service life of the synchronous belt caused by the transient rigid impact for many times and improving the service life of the synchronous belt.
Description
Technical Field
The utility model relates to the field of stage lamps, in particular to an elastic tensioning mechanism for prolonging service life of a synchronous belt and a stage lamp.
Background
The shaking motion of the stage shaking lamp is generally formed by combining the forward and reverse rotation of a lamp body driven by an arm around a lamp rotating shaft and the forward and reverse rotation of the lamp body around the lamp rotating shaft, wherein the lamp rotating shaft is commonly called an X-axis and the lamp holder rotating shaft is commonly called a Y-axis. The Y-axis of the lamp is generally erected on a bearing seat of an arm of the lamp and is divided into a left part and a right part which are connected with the lamp body. One side is usually set as a transmission side, and a synchronous belt pulley on the Y axis of the lamp is driven and installed through a motor and a synchronous belt, and forward and reverse rotation is carried out around the Y axis rotation center on the arm, so that the lamp holder is driven to rotate. In order to ensure the precise rotation and accurate positioning of the lamp cap, the Y-axis synchronous belt generally adopts a design of fixing the center distance by adopting a preset tension force, for example, a tension spring is adopted to set Zhang Jinli, and then the center distance between a motor and a belt wheel is locked by using a screw, so that the design has the advantage of higher cost performance. However, when the lamp requires the lamp cap to perform actions such as forward and reverse rotation at high speed, scram and the like, the abrasion and aging of the synchronous belt can be accelerated due to the impact caused by huge acceleration, and even the synchronous belt is broken in a short time, so that the service life of the synchronous belt is shortened.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the elastic tensioning mechanism for prolonging the service life of the synchronous belt is high in efficiency, uniform in load distribution and stable in output.
The utility model also provides a stage lamp with the elastic tensioning mechanism for prolonging the service life of the synchronous belt.
An elastic tensioning mechanism for improving the life of a synchronous belt according to an embodiment of the first aspect of the present utility model comprises
A mounting plate;
the motor assembly is arranged on the mounting plate and can move relative to the mounting plate;
the driven belt pulley assembly and the motor assembly are respectively arranged at two ends of the mounting plate, and the motor assembly is connected with the driven belt pulley assembly through a synchronous belt;
the tensioning adjusting assembly is arranged on the mounting plate and comprises a tensioning component and an eccentric adjusting shaft, the tensioning component comprises a tensioning push plate, a tensioning supporting plate and an elastic component, the eccentric adjusting shaft is eccentrically arranged between the tensioning push plate and the tensioning supporting plate, and the elastic component is arranged between the tensioning supporting plate and the motor component so as to adjust tightness degree between the motor component and the driven pulley component.
According to the embodiment of the first aspect of the utility model, the elastic tensioning mechanism for prolonging the service life of the synchronous belt has at least the following beneficial effects: the elastic tensioning mechanism for prolonging the service life of the synchronous belt comprises a mounting plate, a motor assembly, a driven belt pulley assembly and a tensioning adjusting assembly, wherein the motor assembly can move relative to the mounting plate, the motor assembly is connected with the driven belt pulley assembly through the synchronous belt, the tensioning adjusting assembly comprises a tensioning part and an eccentric adjusting shaft, the tensioning part comprises a tensioning push plate, a tensioning supporting plate and an elastic part, the eccentric adjusting shaft is eccentrically arranged between the tensioning push plate and the tensioning supporting plate, and the elastic part is arranged between the tensioning supporting plate and the motor assembly and provides tensioning force for the synchronous belt. When the lamp holder moves at a constant speed or in a small acceleration, the tension provided by the elastic component can ensure that the synchronous belt stably transmits torque required by rotation of the lamp holder. When the lamp cap needs to be controlled to quickly turn or suddenly stop, the transient impact caused by huge acceleration can be absorbed by damping deformation of the elastic component, so that the motor component rebounds towards the direction of the driven belt wheel component, the center distance of the two belt wheels is reduced, thereby reducing the negative effect of transient overload on the synchronous belt, when the transient impact is eliminated, the elastic component gradually releases deformation energy, the center distance returns to normal, the phenomenon that the service life of the synchronous belt is reduced due to the fact that the transient rigid impact is suffered for many times can be avoided, and the service life of the synchronous belt is prolonged.
According to some embodiments of the utility model, the motor assembly comprises a motor, a driving pulley and a fixed plate, wherein the motor is installed on the fixed plate, the driving pulley is installed on the motor, a tensioning pressing plate is arranged on the fixed plate and abuts against the elastic component, a motor sliding groove is arranged on the mounting plate, and the fixed plate is movably installed in the motor sliding groove.
According to some embodiments of the utility model, the tensioning adjustment assemblies are arranged at two sides of the mounting plate, the tensioning pressing plates are arranged at two sides of the fixing plate, and the elastic component is arranged between the tensioning pressing plates and the tensioning supporting plate.
According to some embodiments of the utility model, the motor assembly further comprises a sliding cushion block and fixing screws, the motor sliding chute is provided with four fixing plates, and the fixing plates are installed in the four motor sliding chutes through the four sliding cushion blocks and the four fixing screws.
According to some embodiments of the utility model, the driven pulley assembly comprises a shaft core, a driven pulley, a bearing and a bearing housing, the driven pulley being disposed on the shaft core, the shaft core being mounted on the bearing housing by the bearing.
According to some embodiments of the utility model, the tensioning member further comprises a tensioning base plate, the tensioning blade and the tensioning push plate being disposed on the tensioning base plate, the tensioning base plate being disposed on the mounting plate, the tensioning base plate being movable relative to the mounting plate.
According to some embodiments of the utility model, the tensioning base plate is provided with a tensioning chute, the mounting plate is provided with a guide screw, and the tensioning chute is sleeved on the guide screw so that the tensioning base plate can slide on the mounting plate.
According to some embodiments of the utility model, the eccentric adjustment shaft includes a rotation hole, an outer cylindrical surface, and a square groove, the rotation hole being disposed offset from an axial center of the eccentric adjustment shaft, and a torsion groove being disposed at a top of the eccentric adjustment shaft.
According to some embodiments of the utility model, the mounting plate is provided with a mounting hole, a retaining nut is arranged in the square groove, and the eccentric adjusting shaft is rotatably mounted in the mounting hole through the cooperation of the countersunk head screw and the retaining nut.
According to a second aspect of the utility model, a stage lamp includes an elastic tensioning mechanism as described above for improving the life of a timing belt.
The stage lamp according to the embodiment of the second aspect of the utility model has at least the following beneficial effects: according to the stage lamp disclosed by the utility model, the elastic tensioning mechanism for prolonging the service life of the synchronous belt is used, and the torque required by rotation of the lamp cap can be stably transmitted by the synchronous belt through the tensioning force provided by the elastic component. The damping deformation of the elastic component can absorb transient impact caused by huge acceleration, so that the motor component rebounds towards the direction of the driven belt wheel component, the center distance between the two belt wheels is reduced, thereby reducing the negative effect of transient overload on the synchronous belt, avoiding the reduction of the service life of the synchronous belt caused by repeated transient rigid impact, and improving the service life of the synchronous belt.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a stage lamp according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an elastic tensioning mechanism for improving the life of a synchronous belt according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the tension adjustment assembly of FIG. 2 in a resilient tension state;
FIG. 4 is a schematic illustration of the tension adjustment assembly of FIG. 2 in a de-tensioned state;
FIG. 5 is a cross-sectional view of the tensioning adjustment assembly and eccentric adjustment shaft shown in FIG. 2;
fig. 6 is a schematic structural view of the eccentric adjusting shaft shown in fig. 2.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, inner, outer, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, mounting, connection, assembly, cooperation, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical solution.
An elastic tensioning mechanism that improves the life of the timing belt 500 in accordance with an embodiment of the present utility model is described below with reference to fig. 1-6.
An elastic tensioning mechanism for prolonging service life of a synchronous belt 500 according to an embodiment of the present utility model, as shown in fig. 1 to 6, comprises a mounting plate 100, a motor assembly 200, a driven pulley assembly 300 and a tensioning adjustment assembly 400, wherein the motor assembly 200 is arranged on the mounting plate 100, the motor assembly 200 can move relative to the mounting plate 100, the driven pulley assembly 300 and the motor assembly 200 are respectively arranged at two ends of the mounting plate 100, the motor assembly 200 is connected with the driven pulley assembly 300 through the synchronous belt 500, and the motor assembly 200 drives the synchronous belt 500 to move, and can drive the driven pulley assembly 300 to move, thereby driving a lamp cap 600 to move. The tension adjusting assembly 400 includes a tension member including a tension push plate 410, a tension bracket 420, and an elastic member 430, and an eccentric adjusting shaft 450 is eccentrically disposed between the tension push plate 410 and the tension bracket 420, and the elastic member 430 is disposed between the tension bracket 420 and the motor assembly 200 to adjust the tightness between the motor assembly 200 and the driven pulley assembly 300, specifically, the elastic member 430 is disposed between the tension bracket 420 and the motor assembly 200, the eccentric adjusting shaft 450 is eccentrically disposed between the tension push plate 410 and the tension bracket 420, and rotation of the eccentric adjusting shaft 450 can generate a thrust force to the tension member, the elastic member 430 presses down the motor assembly 200 to provide a tension force to the timing belt 500. When the cap 600 makes a uniform or small acceleration movement, the tension provided by the elastic member 430 can ensure that the timing belt 500 stably transmits torque required for rotation of the cap 600. When the lamp cap 600 needs to be controlled to quickly turn or suddenly stop, the transient impact caused by huge acceleration is absorbed by the damping deformation of the elastic component 430, so that the motor assembly 200 rebounds towards the driven pulley assembly 300, the center distance of the two pulleys is reduced, thereby reducing the negative effect of transient overload on the synchronous belt 500, when the transient impact is eliminated, the elastic component 430 gradually releases deformation energy, the center distance returns to normal, and the reduction of the service life of the synchronous belt 500 caused by the transient rigid impact for many times can be avoided, and the service life of the synchronous belt 500 is prolonged.
According to some embodiments of the present utility model, the motor assembly 200 includes a motor 210, a driving pulley 230, and a fixing plate 220, the motor 210 is mounted on the fixing plate 220, the driving pulley 230 is mounted on the motor 210, a tension pressing plate 240 is disposed on the fixing plate 220, the tension pressing plate 240 abuts against an elastic member 430, a motor sliding slot 110 is disposed on the mounting plate 100, and the fixing plate 220 is movably mounted in the motor sliding slot 110. The motor assembly 200 is disposed on the mounting plate 100, specifically, the mounting plate 100 is provided with the motor chute 110, the fixed plate 220 is movably disposed in the motor chute 110, the motor 210 is disposed on the fixed plate 220, the fixed plate 220 is provided with the tensioning pressing plate 240, the elastic component 430 is disposed between the tensioning pressing plate 240 and the tensioning supporting plate 420, the elastic component 430 presses down the tensioning pressing plate 240, the motor 210 and the fixed plate 220 can be driven to move relative to the mounting plate 100, and the distance between the motor assembly 200 and the driven pulley assembly 300 is adjusted, so that the tensioning force is adjusted.
According to some embodiments of the present utility model, the tension adjusting assembly 400 is provided in two, the two tension adjusting assemblies 400 are respectively provided at both sides of the mounting plate 100, the tension pressing plate 240 is provided at both sides of the fixing plate 220, and the elastic member 430 is provided between the tension pressing plate 240 and the tension supporting plate 420. The tension adjusting assembly 400 presses down the motor assembly 200 at both sides, so that both sides of the motor assembly 200 can be kept balanced when the tension adjusting assembly 400 adjusts the tension of the motor assembly 200, the problem that the service life of the synchronous belt 500 is reduced due to the fact that one side of the synchronous belt 500 is subjected to transient rigid impact for many times is avoided, and the service life of the synchronous belt 500 is prolonged.
According to some embodiments of the present utility model, the motor assembly 200 further includes a sliding pad 252 and fixing screws 251, the motor sliding chute 110 is provided with four, and the fixing plate 220 is installed in the four motor sliding chutes 110 through the four sliding pad 252 and the four fixing screws 251. The motor 210 is mounted on the fixing plate 220, the fixing plate 220 is mounted in the motor sliding groove 110 of the mounting plate 100, specifically, the motor sliding groove 110 is provided with four, sliding cushion blocks 252 and fixing screws 251 are arranged between the fixing plate 220 and the mounting plate 100, the fixing screws 251 penetrate through the motor sliding groove 110 to mount the fixing plate 220 on the mounting plate 100, so that the fixing plate 220 and the motor 210 on the fixing plate 220 can move relative to the mounting plate 100, and the distance between the motor assembly 200 and the driven pulley assembly 300 can be conveniently adjusted, so that the tensioning force can be adjusted. It will be appreciated that a sliding pad 252 is also provided between the fixed plate 220 and the mounting plate 100, the sliding pad 252 being capable of isolating and protecting friction between the fixed plate 220 and the mounting plate 100.
According to some embodiments of the present utility model, the driven pulley assembly 300 includes a shaft core 310, a driven pulley 320, a bearing 330, and a bearing housing 340, the driven pulley 320 is disposed on the shaft core 310, and the shaft core 310 is mounted on the bearing housing 340 through the bearing 330. The driven pulley 320 is fixed to the shaft core 310, the shaft core 310 is mounted in the bearing housing 340 through the bearing 330, the driven pulley 320 and the shaft core 310 can rotate in the bearing housing 340 through the bearing 330, and when the motor assembly 200 rotates after the timing belt 500 is tensioned, the timing belt 500 can transmit power to the driven pulley 320, thereby pulling the shaft core 310 and the cap 600 to rotate.
According to some embodiments of the present utility model, the tensioning member further comprises a tensioning base plate 440, the tensioning pallet 420 and the tensioning push plate 410 are disposed on the tensioning base plate 440, the tensioning base plate 440 is disposed on the mounting plate 100, and the tensioning base plate 440 is movable relative to the mounting plate 100. The tensioning part is arranged between the driven pulley assembly 300 and the motor assembly 200, the tensioning part comprises a tensioning substrate 440, a tensioning supporting plate 420 and a tensioning pushing plate 410, the tensioning supporting plate 420 and the tensioning pushing plate 410 are arranged on the tensioning substrate 440, the tensioning substrate 440 can move relative to the mounting plate 100, the eccentric adjusting shaft 450 is eccentrically arranged between the tensioning pushing plate 410 and the tensioning supporting plate 420, the rotating of the eccentric adjusting shaft 450 can generate thrust for the tensioning part, and the movable tensioning part can press down the motor assembly 200 to provide tensioning force for the synchronous belt 500. Specifically, in some embodiments, the tensioning base plate 440 is provided with a tensioning chute 441, the mounting plate 100 is provided with a guide screw, and the tensioning chute 441 is sleeved on the guide screw, so that the tensioning base plate 440 can slide on the mounting plate 100.
According to some embodiments of the present utility model, the eccentric adjustment shaft 450 includes a rotation hole 451, an outer cylindrical surface and a square groove 452, and a torsion groove 453, the rotation hole 451 being disposed offset from the axial center of the eccentric adjustment shaft 450, the torsion groove 453 being disposed at the top of the eccentric adjustment shaft 450. The eccentric adjusting shaft 450 is eccentrically disposed between the tension pushing plate 410 and the tension supporting plate 420, specifically, the eccentric adjusting shaft 450 is disposed between the tension pushing plate 410 and the tension supporting plate 420 with the rotation hole 451 as a rotation center, and the rotation of the eccentric adjusting shaft 450 can make the outer cylindrical surface press down the tension pushing plate 410 or lift up the tension supporting plate 420 due to the eccentric arrangement of the rotation hole 451, so as to realize the adjustment of the tension force. The twisting groove 453 is provided at the top of the eccentric adjusting shaft 450, and the eccentric adjusting shaft 450 can be twisted through the twisting groove 453, so that the adjustment is more convenient.
According to some embodiments of the present utility model, the mounting plate 100 is provided with a mounting hole in which the stop nut 455 is provided in the square groove 452, and the eccentric adjustment shaft 450 is rotatably mounted by the cooperation of the countersunk screw 454 and the stop nut 455. The eccentric adjusting shaft 450 is disposed on the mounting plate 100, specifically, a mounting hole is disposed on the mounting plate 100, a square groove 452 is disposed on a side portion of the eccentric adjusting shaft 450, a stop nut 455 is disposed in the square groove 452, a countersunk screw 454 passes through the mounting hole to cooperate with the stop nut 455 in the eccentric adjusting shaft 450, the eccentric adjusting shaft 450 is mounted in the mounting hole, and the eccentric adjusting shaft 450 can rotate relative to the mounting hole to adjust the tensioning force.
A stage lamp according to an embodiment of the second aspect of the utility model includes an elastic tensioning mechanism as described above that improves the life of the timing belt 500. The stage lamp according to the second aspect of the present utility model can ensure that the timing belt 500 stably transmits torque required for rotation of the cap 600 by the tension provided by the elastic member 430 using the elastic tension mechanism of the first aspect for improving the life of the timing belt 500. The damping deformation of the elastic member 430 can absorb the transient impact caused by the huge acceleration, so that the motor assembly 200 rebounds towards the driven pulley assembly 300, the center distance between the two pulleys is reduced, thereby reducing the negative effect of transient overload on the synchronous belt 500, avoiding the reduction of the service life of the synchronous belt 500 caused by the multiple transient rigid impacts, and improving the service life of the synchronous belt 500.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. An elastic tensioning mechanism for improving the life of a synchronous belt, comprising:
a mounting plate;
the motor assembly is arranged on the mounting plate and can move relative to the mounting plate;
the driven belt pulley assembly and the motor assembly are respectively arranged at two ends of the mounting plate, and the motor assembly is connected with the driven belt pulley assembly through a synchronous belt;
the tensioning adjusting assembly is arranged on the mounting plate and comprises a tensioning component and an eccentric adjusting shaft, the tensioning component comprises a tensioning push plate, a tensioning supporting plate and an elastic component, the eccentric adjusting shaft is eccentrically arranged between the tensioning push plate and the tensioning supporting plate, and the elastic component is arranged between the tensioning supporting plate and the motor component so as to adjust tightness degree between the motor component and the driven pulley component.
2. The elastic tensioning mechanism for improving service life of a synchronous belt according to claim 1, wherein the motor assembly comprises a motor, a driving pulley and a fixing plate, the motor is mounted on the fixing plate, the driving pulley is mounted on the motor, a tensioning pressing plate is arranged on the fixing plate and abuts against the elastic component, a motor sliding groove is formed in the mounting plate, and the fixing plate is movably mounted in the motor sliding groove.
3. The elastic tensioning mechanism for prolonging service life of synchronous belt according to claim 2, wherein two tensioning adjustment assemblies are arranged, the two tensioning adjustment assemblies are respectively arranged on two sides of the mounting plate, the tensioning pressing plates are arranged on two sides of the fixing plate, and the elastic component is arranged between the tensioning pressing plates and the tensioning supporting plates.
4. The elastic tensioning mechanism for improving service life of synchronous belt according to claim 2, wherein the motor assembly further comprises four sliding cushion blocks and four fixing screws, and the fixing plate is installed in the four motor sliding grooves through the four sliding cushion blocks and the four fixing screws.
5. The elastic tensioning mechanism for improving the life of a synchronous belt according to claim 1, wherein the driven pulley assembly comprises a shaft core, a driven pulley, a bearing and a bearing housing, the driven pulley being disposed on the shaft core, the shaft core being mounted on the bearing housing by the bearing.
6. The elastic tensioning mechanism for improving the life of a synchronous belt according to claim 1, wherein the tensioning member further comprises a tensioning base plate, the tensioning support plate and the tensioning push plate are disposed on the tensioning base plate, the tensioning base plate is disposed on the mounting plate, and the tensioning base plate is movable relative to the mounting plate.
7. The elastic tensioning mechanism for improving service life of synchronous belt according to claim 6, wherein a tensioning chute is arranged on the tensioning base plate, a guide screw is arranged on the mounting plate, and the tensioning chute is sleeved on the guide screw so that the tensioning base plate can slide on the mounting plate.
8. The elastic tensioning mechanism for improving service life of a synchronous belt according to claim 1, wherein the eccentric adjusting shaft comprises a rotary hole, an outer cylindrical surface, a square groove and a torsion groove, the rotary hole is arranged offset from the axis of the eccentric adjusting shaft, and the torsion groove is arranged at the top of the eccentric adjusting shaft.
9. The elastic tensioning mechanism for prolonging service life of a synchronous belt according to claim 8, wherein the mounting plate is provided with a mounting hole, a retaining nut is arranged in the square groove, and the eccentric adjusting shaft is rotatably mounted in the mounting hole through cooperation of a countersunk head screw and the retaining nut.
10. Stage lamp, characterized in that it comprises an elastic tensioning mechanism for improving the life of a synchronous belt according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320511945.4U CN219549509U (en) | 2023-03-15 | 2023-03-15 | Elastic tensioning mechanism for prolonging service life of synchronous belt and stage lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320511945.4U CN219549509U (en) | 2023-03-15 | 2023-03-15 | Elastic tensioning mechanism for prolonging service life of synchronous belt and stage lamp |
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| Publication Number | Publication Date |
|---|---|
| CN219549509U true CN219549509U (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320511945.4U Active CN219549509U (en) | 2023-03-15 | 2023-03-15 | Elastic tensioning mechanism for prolonging service life of synchronous belt and stage lamp |
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|---|---|
| CN (1) | CN219549509U (en) |
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2023
- 2023-03-15 CN CN202320511945.4U patent/CN219549509U/en active Active
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