CN219919002U - Matrix switcher convenient to maintain - Google Patents
Matrix switcher convenient to maintain Download PDFInfo
- Publication number
- CN219919002U CN219919002U CN202320986251.6U CN202320986251U CN219919002U CN 219919002 U CN219919002 U CN 219919002U CN 202320986251 U CN202320986251 U CN 202320986251U CN 219919002 U CN219919002 U CN 219919002U
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- fixed mounting
- matrix switcher
- matrix switch
- matrix
- synchronous wheel
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- 239000011159 matrix material Substances 0.000 title claims abstract description 105
- 230000001681 protective effect Effects 0.000 claims abstract description 35
- 239000000428 dust Substances 0.000 claims abstract description 7
- 230000001360 synchronised effect Effects 0.000 claims description 38
- 230000017525 heat dissipation Effects 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 20
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a matrix switcher convenient to maintain, which comprises a matrix switcher main body, wherein limiting assemblies are fixedly arranged on opposite sides of inner cavities of two protective shells, a radiating assembly is fixedly arranged on the rear side of the left side of a fixing plate, and a dust screen is fixedly arranged on the right side of the inner cavity of the matrix switcher main body. According to the utility model, through the design of the top cover, the plugboard, the slot, the protective shell and the limiting component, the limiting component can rapidly mount and dismount the plugboard when in use, the plugboard is mounted on the top cover, and the top cover can be dismounted along with the dismounting of the plugboard, so that the top cover can be rapidly mounted and dismounted, the maintenance of the matrix switcher main body is more convenient, and through the design of the radiating component, the radiating component is started, and the radiating component can radiate the interior of the matrix switcher main body when in use, so that the service life of the matrix switcher main body is prolonged.
Description
Technical Field
The utility model belongs to the technical field of matrix switchers, and particularly relates to a matrix switcher convenient to maintain.
Background
The matrix switcher is an image processing device capable of completing multi-picture display in real time, and can simultaneously display a plurality of dynamic pictures on one display terminal, so that the matrix switcher is widely applied to the fields of monitoring, conferences and the like.
For example, application number: the utility model discloses a CN202220666564.9, which relates to the technical field of matrix switches and comprises a matrix switching main body, wherein the front surface of the matrix switching main body is fixedly connected with a control mechanism, the back surface of the matrix switching main body is provided with a socket, four corners of the back surface of the matrix switching main body are provided with opposite interfaces, the matrix switching main body is movably connected with a butt joint shaft through the opposite interfaces, one end of the butt joint shaft is fixedly connected with a wire arrangement assembly, two sides of the matrix switching main body are provided with sliding grooves, and the matrix switching main body is movably connected with a heat dissipation plate through the sliding grooves. According to the utility model, through the wire arranging plate and the wire arranging hook, the wire arranging effect of the matrix switcher is improved, and the phenomenon that the connecting wires are mutually wound and knotted is avoided, so that the later maintenance of the wires is facilitated, and through the arranged sliding grooves, the radiating plates and the guide rails, the operator can conveniently disassemble the radiating plates and clean the radiating plates, and the influence on the fan heat effect caused by the accumulation of a large amount of dust on the radiating net is avoided.
Based on the retrieval of the above patent and the discovery of the device in the prior art, the device can be normally used when being applied, but the matrix switcher dissipates heat through the heat dissipation plate and the heat dissipation net, so that the heat dissipation effect is poor, the safe operation of the matrix switcher cannot be guaranteed due to the fact that the effective heat dissipation is not achieved, the service life of the matrix switcher can be possibly shortened, and when the matrix switcher needs to be maintained, the matrix switcher is inconvenient to maintain, and when the matrix switcher is inconvenient to use, so that the working efficiency is reduced, and the practicability is low.
The matrix switcher convenient to maintain has good heat dissipation effect, can achieve effective heat dissipation to ensure safe operation of the matrix switcher, prolongs the service life of the matrix switcher, is convenient to maintain the matrix switcher when the matrix switcher is required to be maintained, and is convenient to use, so that the working efficiency is improved, and the practicability is strong.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides the matrix switcher convenient to maintain, which has the advantages of good heat dissipation effect, capability of effectively dissipating heat to ensure the safe operation of the matrix switcher, capability of prolonging the service life of the matrix switcher, convenience in maintaining the matrix switcher when the matrix switcher is required to be maintained, convenience in use, thereby improving the working efficiency and strong practicability, and solves the problems that the conventional matrix switcher dissipates heat through a heat dissipation plate and a heat dissipation network, the heat dissipation effect is poor, the effective heat dissipation cannot be achieved to ensure the safe operation of the matrix switcher, the service life of the matrix switcher is possibly reduced, the matrix switcher is inconvenient to maintain when the matrix switcher is required to be maintained, and the working efficiency and the practicability are reduced.
The utility model is realized in such a way, the matrix switcher convenient to maintain comprises a matrix switcher main body, wherein a top cover is detachably arranged at the top of the matrix switcher main body, plugboards are fixedly arranged at two sides of the bottom of the top cover, slots are fixedly arranged at the front sides and the rear sides of two opposite sides of the plugboards, protective shells are fixedly arranged at the tops of two opposite sides of the matrix switcher main body, limit components are fixedly arranged at the opposite sides of inner cavities of the two protective shells, a protective shell is fixedly arranged at the right side of the matrix switcher main body, a fixed plate is fixedly arranged at the right side of the inner cavity of the protective shell, a heat dissipation component is fixedly arranged at the rear side of the left side of the fixed plate, a dust screen is fixedly arranged at the right side of the inner cavity of the matrix switcher main body, and vent holes are formed in the right side of the protective shell.
As the preferable limit component of the utility model, the limit component comprises springs, two springs are respectively and fixedly arranged on the opposite sides of the inner cavities of two protective shells, baffle plates are fixedly arranged on the opposite sides of the two springs, clamping blocks are fixedly arranged on the opposite sides of the two baffle plates, pull rods are fixedly arranged on the opposite sides of the two baffle plates, and the opposite sides of the two pull rods penetrate through the outer sides of the protective shells.
As the preferable mode of the utility model, the front side and the rear side of the baffle are fixedly provided with sliding blocks, the inner cavity of each sliding block is slidably provided with a sliding rod, and both sides of each sliding rod are fixedly arranged in the inner cavity of the protective shell.
As a preferred mode of the utility model, the heat dissipation assembly comprises a motor, the motor is fixedly arranged at the rear side of the left side of the fixed plate, a first synchronous wheel is fixedly arranged on an output shaft of the motor, a second synchronous wheel is arranged at the front side of the first synchronous wheel, and a belt is connected between the first synchronous wheel and the second synchronous wheel in a transmission manner.
As preferable in the utility model, the left side of the first synchronous wheel and the inner cavity of the second synchronous wheel are fixedly provided with rotating rods, and the surfaces of the rotating rods are fixedly provided with fan blades.
As the preferable mode of the utility model, the right side of the surface of the motor is sleeved with the limiting ring, and the right side of the limiting ring is fixedly connected with the fixed plate.
As the preferable mode of the utility model, the bottom of the right side of the matrix switcher main body is fixedly provided with a positioning plate, and the top of the positioning plate is fixedly connected with the protective shell.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the matrix switcher, the device can be normally used through the design of the matrix switcher body, the plug board, the plug slot, the protective shell and the limiting component, the limiting component can be rapidly installed and detached when the matrix switcher body is used, the plug board is installed on the top cover, the top cover can be detached along with the plug board to be detached, so that the top cover can be rapidly installed and detached, when the matrix switcher body needs to be maintained, the heat dissipation component is protected through the design of the protective shell, the heat dissipation component is supported through the design of the fixing board, the heat dissipation component is started through the design of the heat dissipation component, the heat dissipation component dissipates heat in the matrix switcher body when the matrix switcher body is used, the service life of the matrix switcher body is prolonged, floating dust is blocked when the heat dissipation component is used through the design of the dustproof net, and ventilation can be carried out when the heat dissipation component is used through the design of the ventilation hole.
2. According to the utility model, through the design of the spring, the baffle, the clamping block and the pull rod, the pull rod drives the baffle and the clamping block to move when being pulled, the spring can be compressed, the plugboard enters the matrix switcher body from the top of the matrix switcher body, the pull rod is loosened, the spring is reset when the pull rod is loosened, the baffle and the clamping block are driven to reset when the spring is reset, the clamping block enters the slot on the plugboard, so that the plugboard is quickly installed, when the plugboard is required to be disassembled, the pull rod is pulled, the clamping block is separated from the slot, the plugboard is disassembled and taken out, and the top cover is installed on the plugboard and can be assembled and disassembled with the plugboard.
3. According to the utility model, through the design of the sliding block and the sliding rod, the baffle can be assisted when moving, so that the baffle is more convenient when moving.
4. According to the utility model, through the design of the motor, the first synchronous wheel, the belt and the second synchronous wheel, the motor is started, and the motor drives the first synchronous wheel to rotate when in use, because the second synchronous wheel is connected with the first synchronous wheel through the belt in a transmission way, the second synchronous wheel is driven to rotate when the first synchronous wheel rotates.
5. According to the matrix switcher, through the design of the rotating rod and the fan blades, the rotating rod is fixedly arranged on the first synchronous wheel and the second synchronous wheel, the rotating rod is driven to rotate when the first synchronous wheel and the second synchronous wheel rotate, and the fan blades are arranged on the rotating rod and rotate along with the rotation of the rotating rod, so that heat dissipation is carried out inside the matrix switcher body.
6. According to the utility model, through the design of the limiting ring, the motor is fixed through the limiting ring when in use, and the motor cannot shake when in use, so that the stability of the motor when in use is improved.
7. According to the utility model, through the design of the locating plate, one end of the locating plate is fixedly arranged on the matrix switcher main body, and the other end of the locating plate is fixedly arranged on the protective shell, so that the matrix switcher main body and the protective shell are firmer when being fixed.
Drawings
FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present utility model;
FIG. 2 is a front cross-sectional view provided by an embodiment of the present utility model;
FIG. 3 is a front view of a spacing assembly provided by an embodiment of the present utility model;
fig. 4 is a front view of a heat dissipating assembly according to an embodiment of the present utility model.
In the figure: 1. a matrix switcher body; 2. a top cover; 3. inserting plate; 4. a slot; 5. a protective shell; 6. a limit component; 601. a spring; 602. a baffle; 603. a clamping block; 604. a pull rod; 605. a sliding block; 606. a slide bar; 7. a protective shell; 8. a fixing plate; 9. a heat dissipation assembly; 901. a motor; 902. a first synchronizing wheel; 903. a belt; 904. a second synchronizing wheel; 905. a rotating lever; 906. a fan blade; 907. a limiting ring; 10. a dust screen; 11. a vent hole; 12. and (5) positioning the plate.
Detailed Description
For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
The structure of the present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the matrix switcher convenient to maintain provided by the embodiment of the utility model comprises a matrix switcher main body 1, wherein a top cover 2 is detachably arranged at the top of the matrix switcher main body 1, plugboards 3 are fixedly arranged on two sides of the bottom of the top cover 2, slots 4 are fixedly arranged on the front sides and the rear sides of two opposite sides of the plugboards 3, a protective shell 5 is fixedly arranged on the top of two sides of the matrix switcher main body 1, a limiting component 6 is fixedly arranged on one side opposite to the inner cavities of the two protective shells 5, a protective shell 7 is fixedly arranged on the right side of the matrix switcher main body 1, a fixing plate 8 is fixedly arranged on the right side of the inner cavity of the protective shell 7, a heat dissipation component 9 is fixedly arranged on the rear side of the left side of the fixing plate 8, a dustproof net 10 is fixedly arranged on the right side of the inner cavity of the matrix switcher main body 1, and a vent hole 11 is formed in the right side of the protective shell 7.
Referring to fig. 1, 2 and 3, the limiting assembly 6 includes a spring 601, two springs 601 are respectively and fixedly installed on opposite sides of inner cavities of two protecting shells 5, a baffle 602 is fixedly installed on opposite sides of the two springs 601, a clamping block 603 is fixedly installed on opposite sides of the two baffles 602, a pull rod 604 is fixedly installed on opposite sides of the two baffles 602, and opposite sides of the two pull rods 604 penetrate through to the outer sides of the protecting shells 5.
The scheme is adopted: according to the utility model, through the design of the spring 601, the baffle 602, the clamping block 603 and the pull rod 604, the pull rod 604 is pulled, the baffle 602 and the clamping block 603 are driven to move when the pull rod 604 is pulled, the spring 601 can be compressed, the plugboard 3 enters the matrix switcher body 1 from the top of the matrix switcher body 1, the pull rod 604 is loosened, the spring 601 is reset when the pull rod 604 is loosened, the baffle 602 and the clamping block 603 are driven to reset when the spring 601 is reset, the clamping block 603 enters the slot 4 on the plugboard 3, so that the plugboard 3 is quickly installed, when the plugboard 3 needs to be disassembled, the pull rod 604 is pulled, the clamping block 603 is separated from the slot 4, the plugboard 3 is disassembled and taken out, and the top cover 2 is installed on the plugboard 3 and can be installed and disassembled with the plugboard 3.
Referring to fig. 1, 2 and 3, the front side and the rear side of the baffle 602 are fixedly provided with sliding blocks 605, the inner cavity of the sliding blocks 605 is slidably provided with sliding rods 606, and both sides of the sliding rods 606 are fixedly provided with the inner cavity of the protective shell 5.
The scheme is adopted: according to the utility model, through the design of the sliding block 605 and the sliding rod 606, the baffle 602 can play an auxiliary role when moving, so that the baffle 602 is more convenient when moving.
Referring to fig. 2 and 4, the heat dissipating assembly 9 includes a motor 901, the motor 901 is fixedly installed at the rear side of the left side of the fixing plate 8, an output shaft of the motor 901 is fixedly installed with a first synchronizing wheel 902, a second synchronizing wheel 904 is installed at the front side of the first synchronizing wheel 902, and a belt 903 is drivingly connected between the first synchronizing wheel 902 and the second synchronizing wheel 904.
The scheme is adopted: according to the utility model, through the design of the motor 901, the first synchronous wheel 902, the belt 903 and the second synchronous wheel 904, the motor 901 is started, and the motor 901 drives the first synchronous wheel 902 to rotate when in use, because the second synchronous wheel 904 is in transmission connection with the first synchronous wheel 902 through the belt 903, the first synchronous wheel 902 can drive the second synchronous wheel 904 to rotate when in rotation.
Referring to fig. 2 and 4, a rotating rod 905 is fixedly installed at the left side of the first synchronizing wheel 902 and the inner cavity of the second synchronizing wheel 904, and fan blades 906 are fixedly installed on the surface of the rotating rod 905.
The scheme is adopted: according to the utility model, through the design of the rotating rod 905 and the fan blades 906, the rotating rod 905 is fixedly arranged on the first synchronous wheel 902 and the second synchronous wheel 904, the rotating rod 905 is driven to rotate when the first synchronous wheel 902 and the second synchronous wheel 904 rotate, and the fan blades 906 are arranged on the rotating rod 905 and rotate along with the rotation of the rotating rod 905, so that the heat dissipation is carried out inside the matrix switcher main body 1.
Referring to fig. 2 and 4, a limit ring 907 is sleeved on the right side of the surface of the motor 901, and the right side of the limit ring 907 is fixedly connected with a fixing plate 8.
The scheme is adopted: according to the utility model, through the design of the limiting ring 907, the motor 901 is fixed through the limiting ring 907 when in use, so that the motor 901 cannot shake when in use, and the stability of the motor 901 when in use is increased.
Referring to fig. 2, a positioning plate 12 is fixedly installed at the bottom of the right side of the matrix switcher body 1, and the top of the positioning plate 12 is fixedly connected with a protective shell 7.
The scheme is adopted: according to the utility model, through the design of the positioning plate 12, one end of the positioning plate 12 is fixedly arranged on the matrix switcher body 1, and the other end of the positioning plate is fixedly arranged on the protective shell 7, so that the matrix switcher body 1 and the protective shell 7 are firmer in the fixing process.
The working principle of the utility model is as follows:
when using, pulling pull rod 604, pull rod 604 drives baffle 602 and fixture block 603 and removes when the pulling, still can compress spring 601, picture peg 3 enters into matrix switch main part 1's inside from matrix switch main part 1 top, loosen pull rod 604, spring 601 resets when loosening, spring 601 drives baffle 602 and fixture block 603 and resets, let fixture block 603 enter into slot 4 on picture peg 3, thereby carry out quick installation to picture peg 3, when need dismantle picture peg 3, pulling pull rod 604, let fixture block 603 break away from slot 4 inside, thereby dismantle picture peg 3 and take out, top cap 2 is installed on picture peg 3, can follow the installation of picture peg 3 and dismantlement, thereby install and dismantle top cap 2 that can be quick, when need carry out maintenance to matrix switch main part 1, start motor 901, motor 901 drives first synchronizing wheel 902 when using and rotates because second synchronizing wheel 904 and first synchronizing wheel 902 are through belt 903 transmission connection, make first synchronizing wheel 902 can drive first synchronizing wheel 904 and also rotate the first fan blade 905 and install at first rotating wheel 905 and rotate the same time at first rotating wheel 905, can follow the installation of fan blade 905 on matrix switch main part 1 rotates the first rotating wheel 902, thereby rotate the fan blade 905, can rotate the first rotating assembly is rotated at first rotating fan blade 905, the inside is rotated at the first rotating wheel 905, the time of the matrix switch main part 1, can be rotated simultaneously, and more convenient is rotated, the speed of the matrix switch 1 is required to maintain, the matrix switch 1, and the first is rotated, the time, the first synchronous wheel 902 is rotated, and can be rotated, and the use, the first synchronous wheel 902 can be rotated, and the speed is rotated, and can be rotated.
To sum up: this matrix switch convenient to maintain, through matrix switch main part 1, top cap 2, picture peg 3, slot 4, protective housing 5, spacing subassembly 6, spring 601, baffle 602, fixture block 603, pull rod 604, sliding block 605, sliding rod 606, protective housing 7, fixed plate 8, radiator unit 9, motor 901, first synchronizing wheel 902, belt 903, second synchronizing wheel 904, dwang 905, flabellum 906, spacing ring 907, dust screen 10, ventilation hole 11 and locating plate 12's cooperation is used, it dispels the heat through heating panel and heat dissipation net to have solved current matrix switch, the radiating effect is not good, can not reach the safe operation of effectual heat dissipation assurance matrix switch, the life of matrix switch is probably reduced, and when need maintaining the matrix switch, be inconvenient for maintaining the matrix switch, when using, thereby work efficiency has been reduced, the problem of practicality is low.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A matrix switcher convenient to maintain, comprising a matrix switcher body (1), characterized in that: the utility model discloses a matrix switch, including matrix switch main part (1), top cover (2) is detachably installed at the top of matrix switch main part (1), the equal fixed mounting in both sides of the bottom of top cover (2) has picture peg (3), and the equal fixed mounting in front side and the rear side of two picture peg (3) opposite sides has slot (4), the equal fixed mounting in top of matrix switch main part (1) both sides has protective housing (5), and equal fixed mounting in one side opposite of two protective housing (5) inner chamber has spacing subassembly (6), the right side fixed mounting of matrix switch main part (1) has protective housing (7), the right side fixed mounting of protective housing (7) inner chamber has fixed plate (8), the rear side fixed mounting in fixed plate (8) left side has radiator unit (9), the right side fixed mounting in matrix switch main part (1) inner chamber has dust screen (10), ventilation hole (11) have been seted up on the right side of protective housing (7).
2. A maintenance-friendly matrix switch as claimed in claim 1, wherein: spacing subassembly (6) include spring (601), and two spring (601) fixed mounting are in two protection shell (5) inner chamber opposite one side respectively, and two equal fixed mounting of one side that spring (601) are opposite has baffle (602), and two equal fixed mounting of one side that baffle (602) are opposite has fixture block (603), and two equal fixed mounting of one side that baffle (602) are opposite have pull rod (604), and two opposite one side of pull rod (604) all run through to the outside of protection shell (5).
3. A maintenance-friendly matrix switch as claimed in claim 2, wherein: the front side and the rear side of the baffle (602) are fixedly provided with sliding blocks (605), the inner cavities of the sliding blocks (605) are slidably provided with sliding rods (606), and both sides of each sliding rod (606) are fixedly provided with the inner cavities of the protective shells (5).
4. A maintenance-friendly matrix switch as claimed in claim 1, wherein: the heat dissipation assembly (9) comprises a motor (901), the motor (901) is fixedly arranged on the rear side of the left side of the fixed plate (8), a first synchronous wheel (902) is fixedly arranged on an output shaft of the motor (901), a second synchronous wheel (904) is arranged on the front side of the first synchronous wheel (902), and a belt (903) is connected between the first synchronous wheel (902) and the second synchronous wheel (904) in a transmission mode.
5. A maintenance-friendly matrix switch as claimed in claim 4, wherein: the inner cavities of the left side of the first synchronous wheel (902) and the inner cavity of the second synchronous wheel (904) are fixedly provided with rotating rods (905), and the surfaces of the rotating rods (905) are fixedly provided with fan blades (906).
6. A maintenance-friendly matrix switch as claimed in claim 4, wherein: and a limiting ring (907) is sleeved on the right side of the surface of the motor (901), and the right side of the limiting ring (907) is fixedly connected with the fixed plate (8).
7. A maintenance-friendly matrix switch as claimed in claim 1, wherein: the matrix switcher is characterized in that a locating plate (12) is fixedly arranged at the bottom of the right side of the matrix switcher main body (1), and the top of the locating plate (12) is fixedly connected with a protective shell (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320986251.6U CN219919002U (en) | 2023-04-27 | 2023-04-27 | Matrix switcher convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320986251.6U CN219919002U (en) | 2023-04-27 | 2023-04-27 | Matrix switcher convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219919002U true CN219919002U (en) | 2023-10-27 |
Family
ID=88425039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320986251.6U Active CN219919002U (en) | 2023-04-27 | 2023-04-27 | Matrix switcher convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219919002U (en) |
-
2023
- 2023-04-27 CN CN202320986251.6U patent/CN219919002U/en active Active
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