CN217207033U - Box fan mounting structure of making an uproar shock attenuation falls - Google Patents

Box fan mounting structure of making an uproar shock attenuation falls Download PDF

Info

Publication number
CN217207033U
CN217207033U CN202123448985.9U CN202123448985U CN217207033U CN 217207033 U CN217207033 U CN 217207033U CN 202123448985 U CN202123448985 U CN 202123448985U CN 217207033 U CN217207033 U CN 217207033U
Authority
CN
China
Prior art keywords
flexible ring
shock
mounting
mounting base
structural layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202123448985.9U
Other languages
Chinese (zh)
Inventor
刘豪
李兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Ruidashun Ventilation Engineering Equipment Manufacturing Co ltd
Original Assignee
Wuhan Ruidashun Ventilation Engineering Equipment Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Ruidashun Ventilation Engineering Equipment Manufacturing Co ltd filed Critical Wuhan Ruidashun Ventilation Engineering Equipment Manufacturing Co ltd
Priority to CN202123448985.9U priority Critical patent/CN217207033U/en
Application granted granted Critical
Publication of CN217207033U publication Critical patent/CN217207033U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The application discloses a noise-reducing and shock-absorbing box type fan mounting structure, which relates to the field of fire-fighting fan mounting and comprises a mounting base and a mounting plate connected with a box body, wherein the mounting base is provided with an elastic rubber support used for connecting a structural layer; the mounting base is far away from the side of structural layer and has seted up the standing groove, just in the diapire of standing groove is connected with and is located the flexible ring group of shock attenuation of mounting panel below, the mounting panel is followed the depth direction of standing groove slide in the standing groove. This application has the not fragile effect of junction that realizes box fan and structural layer, is of value to the connection steadiness between promotion box fan and the structural layer.

Description

Box fan mounting structure of making an uproar shock attenuation falls
Technical Field
The application relates to a fire control fan installation field especially relates to a shock-absorbing box fan mounting structure of making an uproar falls.
Background
The box type fan is also called centrifugal fire-fighting smoke-discharging fan, is suitable for ventilation or high-temperature smoke discharging of high-rise buildings, underground buildings, tunnels, drying rooms and the like, can continuously operate for more than 30 minutes at the high temperature of 280 ℃, does not damage after continuously operating for 20 hours/time at the medium temperature of 100 ℃, and is an ideal fire-fighting necessary facility.
A box fan generally includes a box body and a fan body mounted in the box body. When box fan is installed to needs, the bottom welding mounting panel in advance of the box usually to on placing the basis with the mounting panel, wear to establish connecting screw on the mounting panel again, and insert the tip of connecting screw and locate the structural layer.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the fan body starts, the motor of fan body can last the shake, and then drives box and the synchronous shake of mounting panel, because mounting panel and structural layer are the fixed connection mode, lead to the junction of box fan and structural layer to take place easily to damage, influences the installation steadiness of box fan.
SUMMERY OF THE UTILITY MODEL
In order to improve the problem that the junction of box fan and structural layer takes place the damage easily, this application provides a shock attenuation box fan mounting structure of making an uproar falls.
The application provides a box fan mounting structure of shock attenuation of making an uproar falls adopts following technical scheme:
a noise-reducing and shock-absorbing box type fan mounting structure comprises a mounting base and a mounting plate connected with a box body, wherein the mounting base is provided with an elastic rubber support used for connecting a structural layer; the mounting base is kept away from the side of structural layer and has been seted up the standing groove, just in the diapire of standing groove is connected with and is located the flexible ring group of shock attenuation of mounting panel below, the mounting panel is followed the depth direction of standing groove slide in the standing groove.
Through adopting above-mentioned technical scheme, when the fan body starts, the fan body, box and mounting panel are synchronous along the activity of vertical direction, until the mounting panel laminating and when extrudeing the flexible ring group of shock attenuation, the flexible ring of shock attenuation takes place to deform and exerts the reaction force to the mounting panel, and then can cushion the vibrations of mounting panel and box fan, and reduce rocking of mounting base, the rocking of mounting base also can be cushioned to the elastic rubber support simultaneously, and then weaken the vibrations of transmission to mounting base and structural layer junction by a wide margin, with this effect that the junction of realizing box fan and structural layer is not fragile, be of value to promoting the stability of being connected between box fan and the structural layer.
Optionally, the shock-absorbing flexible ring set comprises an inner flexible ring, a middle flexible ring and an outer flexible ring which are concentrically arranged; the free end face of the outer flexible ring is located on one side, away from the bottom wall of the placing groove, of the free end face of the middle flexible ring, and the free end face of the middle flexible ring is located on one side, away from the bottom wall of the placing groove, of the free end face of the inner flexible ring.
Through adopting above-mentioned technical scheme, when the mounting panel shakes along vertical direction, the mounting panel takes place the contact with outer flexible ring, well flexible ring and interior flexible ring in proper order to can carry out the shock attenuation of multilevel buffering to the mounting panel.
Optionally, the inner flexible ring, the middle flexible ring and the outer flexible ring are all in a bell mouth shape, and the opening faces away from the bottom wall of the placement groove.
Through adopting above-mentioned technical scheme, when mounting panel and outer flexible ring, well flexible ring or interior flexible ring contact, can promote the area of contact between mounting panel and outer flexible ring, well flexible ring or the interior flexible ring, further promote buffering shock attenuation effect.
Optionally, the elastic rubber support comprises a connecting screw, a gasket sleeved on the connecting screw, and a rubber seat sleeved on the connecting screw; the end part of the connecting screw rod sequentially penetrates through the gasket, the mounting base and the rubber seat and is inserted into the structural layer; the gasket is abutted between the nut of the connecting screw rod and the mounting base; the rubber seat is abutted between the mounting base and the structural layer.
By adopting the technical scheme, when the mounting base and the structural layer are required to be connected, the end part of the connecting screw rod sequentially penetrates through the gasket, the mounting base and the rubber seat, and is inserted into the structural layer until the gasket is tightly abutted between the nut of the connecting screw rod and the mounting base, and the rubber seat is tightly abutted between the mounting base and the structural layer, so that the mounting base and the structural layer can be stably connected. If box fan takes place to rock the time, the rubber seat can exert reaction force to the mounting base, slows down rocking of mounting base.
Optionally, the mounting plate is provided with a sliding buffer mechanism, and the sliding buffer mechanism includes a movable block sliding on the mounting plate, a hinge rod hinged on the movable block, and an elastic member for limiting the sliding of the movable block; the end part of the hinge rod is hinged on the box body.
Through adopting above-mentioned technical scheme, when box and fan main part take place the level and rock, the swing takes place at the both ends of hinge bar to drive the movable block and slide on the mounting panel along the horizontal direction, the elastic component is in tensile or compression state simultaneously, and exerts reaction force to the movable block, makes the motion kinetic energy of movable block convert the elastic potential energy of elastic component, can cushion the motion of box fan horizontal direction.
Optionally, two movable blocks and two hinge rods are arranged; the elastic piece is a spring connected between the two movable blocks.
Through adopting above-mentioned technical scheme, the movable block and the hinge bar that above-mentioned quantity set up make mounting panel and box be connected more stably.
Optionally, the mounting plate is provided with a movable groove in sliding fit with the movable block, and a guide rod penetrating through the movable block is connected between two inner walls of the movable groove; the spring is sleeved on the guide rod.
Through adopting above-mentioned technical scheme, the direction of motion of movable block can be restricted to guide bar and activity groove, and then can promote the stability of being connected between mounting panel and the box.
Optionally, the inner side wall of the placing groove is connected with silencing cotton.
Through adopting above-mentioned technical scheme, the noise that box fan, mounting panel and mounting base vibrations take place can be absorbed to the amortization cotton.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the fan body is started, the fan body, the box body and the mounting plate synchronously move in the vertical direction, the mounting plate is sequentially contacted with the outer flexible ring, the middle flexible ring and the inner flexible ring, the outer flexible ring, the middle flexible ring and the inner flexible ring deform and apply reaction force to the mounting plate, and therefore vibration of the mounting plate and the box type fan in the vertical direction can be buffered in a multistage mode;
2. if the mounting base shakes, the rubber seat can apply a reaction force to the mounting base to slow down the shaking of the mounting base, so that the vibration transmitted to the joint of the mounting base and the structural layer is greatly weakened, and the effect that the joint of the box type fan and the structural layer is not easy to damage is achieved;
3. when the fan body starts, the swing takes place at the both ends of hinge bar to drive the movable block and slide on the mounting panel along the horizontal direction, the spring is in tensile or compression state simultaneously, and exert the reaction force to the movable block, make the motion kinetic energy of movable block convert the elastic potential energy of elastic component, can cushion the motion of box fan horizontal direction.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic diagram of an explosive structure according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a mounting plate and a sliding buffer mechanism according to an embodiment of the present application.
Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.
Reference numerals: 11. a box body; 111. a second hinged ear panel; 112. a second horizontal bar; 12. a fan body; 2. mounting a base; 21. connecting the ear plates; 22. a placement groove; 23. silencing cotton; 24. a guide groove; 3. mounting a plate; 31. a guide block; 32. a movable groove; 33. a guide rod; 4. an elastic rubber support; 41. connecting a screw rod; 42. a gasket; 43. a rubber seat; 5. a slipping buffer mechanism; 51. a movable block; 511. a first hinge ear panel; 512. a first horizontal bar; 52. a hinged lever; 53. a spring; 6. a shock absorbing flexible ring set; 61. an inner flexible ring; 62. a middle flexible ring; 63. an outer flexible ring.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses box fan mounting structure of vibration reduction of making an uproar. Referring to fig. 1 and 2, the noise-reducing and shock-absorbing box type fan mounting structure includes a mounting base 2 and a mounting plate 3 connected to a box body 11. Connecting lug plates 21 are welded at four corners of the mounting base 2, and the mounting base 2 is provided with elastic rubber supports 4 for connecting structural layers at the four connecting lug plates 21. The mounting plate 3 is provided with a sliding buffer mechanism 5 which is used for connecting the box body 11 and buffering the box body 11 to shake along the horizontal direction at four corners.
Referring to fig. 1 and 2, a placing groove 22 is formed in a side surface of the mounting base 2 away from the structural layer, and a damping flexible ring group 6 located below the mounting plate 3 is connected to a bottom wall of the placing groove 22. The inside wall of standing groove 22 is connected with amortization cotton 23 through the bonding mode, and the noise in standing groove 22 can be absorbed to amortization cotton 23. Mounting panel 3 slides in standing groove 22 along the depth direction of standing groove 22, and mounting base 2 has seted up guide way 24 in standing groove 22 double-phase to the inside wall, and mounting panel 3 double-phase to the side welding have with guide way 24 the guide block 31 of the adaptation that slides to make mounting panel 3 move about on mounting base 2 along vertical direction steadily.
When fan body 12 starts, there is relative motion along the horizontal direction between box 11 and the mounting panel 3, the buffer gear that slides 5 can be to slowing down the rocking of box 11 along the horizontal direction, box 11 and mounting panel 3 are along vertical direction activity in step simultaneously, until mounting panel 3 laminating and extrusion shock attenuation flexible ring group 6 time, shock attenuation flexible ring group 6 takes place to deform and applys reaction force to mounting panel 3, and then can cushion the vibrations of mounting panel 3 and box fan, and reduce rocking of mounting base 2, simultaneously elasticity rubber support 4 also can cushion rocking of mounting base 2, and then weaken the vibrations of transmission to mounting base 2 and structural layer junction by a wide margin, with this effect that realizes that the junction of box fan and structural layer is not fragile, it is of value to be of benefit to the connection steadiness between box fan and the structural layer to promote.
Referring to fig. 1 and 2, the elastic rubber support 4 includes a connection screw 41, a washer 42 sleeved on the connection screw 41, and a rubber seat 43 sleeved on the connection screw 41. Connecting screw 41 and gasket 42 adopt stainless steel, and connecting screw 41's tip passes gasket 42, connection otic placode 21 and rubber seat 43 along vertical direction in proper order, and the plug locates in the structural layer, and gasket 42 butt is kept away from between the structural layer in the side of nut and the mounting base 2 of connecting screw 41, and rubber seat 43 butt is close to between the structural layer and the side of mounting base 2.
When the mounting base 2 and the structural layer need to be connected, the end of the connecting screw rod 41 sequentially penetrates through the gasket 42, the mounting base 2 and the rubber seat 43, and is inserted into the structural layer until the gasket 42 abuts between the nut of the connecting screw rod 41 and the mounting base 2, and the rubber seat 43 abuts between the mounting base 2 and the structural layer, so that the mounting base 2 and the structural layer can be stably connected. If box fan takes place to rock the time, rubber seat 43 can exert reaction force to mounting base 2, slows down rocking of mounting base 2.
Referring to fig. 1 and 2, the shock-absorbing flexible ring set 6 includes an inner flexible ring 61, a middle flexible ring 62 and an outer flexible ring 63 which are concentrically arranged, and the inner flexible ring 61, the middle flexible ring 62 and the outer flexible ring 63 are all in a bell mouth shape and open to the bottom wall of the placement groove 22, and are all made of rubber. The free end face of the outer flexible ring 63 is located on the side of the free end face of the middle flexible ring 62 remote from the bottom wall of the placement groove 22, and the free end face of the middle flexible ring 62 is located on the side of the free end face of the inner flexible ring 61 remote from the bottom wall of the placement groove 22.
When the mounting plate 3 shakes along the vertical direction, the mounting plate 3 contacts with the outer flexible ring 63, the middle flexible ring 62 and the inner flexible ring 61 in sequence, and the damping flexible ring group 6 with the structural design can improve the contact area between the mounting plate 3 and the outer flexible ring 63, the middle flexible ring 62 or the inner flexible ring 61, so that multi-level buffering and damping can be performed on the mounting plate 3.
Referring to fig. 2, 3 and 4, the sliding buffer mechanism 5 includes a movable block 51 sliding on the mounting plate 3 in a horizontal direction, a hinge rod 52 hinged on the movable block 51, and an elastic member for limiting sliding of the movable block 51. The movable block 51 and the hinge rod 52 are both provided with two, the side of the mounting plate 3 far away from the structural layer is provided with a movable groove 32 matched with the movable block 51 in a sliding manner along the horizontal direction, and a guide rod 33 penetrating through the movable block 51 is connected between the two inner walls of the movable groove 32.
Referring to fig. 2, 3 and 4, the first hinge lug plates 511 are welded to the two sides of the bottom end of the hinge rod 52 on the side of the movable block 51 away from the structural layer, a first horizontal rod 512 penetrates between the two first hinge lug plates 511, and the bottom end of the hinge rod 52 swings around the first horizontal rod 512. The end of the hinge rod 52 far from the movable block 51 is hinged to the box body 11, the second hinge ear plates 111 are welded to two sides of the top end of the hinge rod 52 of the box body 11, a second horizontal rod 112 penetrates between the two first hinge ear plates 511, and the top end of the hinge rod 52 swings around the second horizontal rod 112.
Referring to fig. 2, 3 and 4, the elastic member is a spring 53 connected between the two movable blocks 51, and the spring 53 is sleeved on the guide rod 33, in other embodiments, three springs 53 may be provided, one spring 53 is located between the two movable blocks 51, and the other two springs 53 are respectively located at a side where the two movable blocks 51 are away from each other.
When box 11 and fan body 12 take place the level and rock, the swing takes place for the both ends of articulated rod 52 to drive movable block 51 and slide on the mounting groove along the horizontal direction, spring 53 is in tensile or compression state simultaneously, and exert reaction force to movable block 51, make movable block 51's kinetic energy of movement convert the elastic potential energy of spring 53 spare, can cushion box fan horizontal direction's motion.
The implementation principle of the box type fan mounting structure with noise reduction and shock absorption provided by the embodiment of the application is as follows: when the fan body 12 is started, the box body 11 and the mounting plate 3 move relatively in the horizontal direction, the two ends of the hinge rod 52 swing and drive the movable block 51 to slide on the mounting groove in the horizontal direction, meanwhile, the spring 53 is in a stretching or compressing state and applies a reaction force to the movable block 51, so that the motion kinetic energy of the movable block 51 is converted into the elastic potential energy of the spring 53, and the motion of the box type fan in the horizontal direction can be buffered;
meanwhile, the box body 11 and the mounting plate 3 synchronously move in the vertical direction, the mounting plate 3 is sequentially contacted with the outer flexible ring 63, the middle flexible ring 62 and the inner flexible ring 61, the outer flexible ring 63, the middle flexible ring 62 and the inner flexible ring 61 are sequentially deformed and apply a reaction force to the mounting plate 3, so that the vibration of the mounting plate 3 and the box-type fan in the vertical direction can be buffered in a multi-level mode, and the shaking of the mounting base 2 is reduced;
meanwhile, the rubber seat 43 can also buffer the shaking of the mounting base 2, so that the shaking transmitted to the joint of the mounting base 2 and the structural layer is greatly weakened, the effect that the joint of the box-type fan and the structural layer is not easy to damage is achieved, and the improvement of the connection stability between the box-type fan and the structural layer is facilitated.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a box fan mounting structure of absorbing of making an uproar falls, includes mounting base (2) and mounting panel (3) of being connected with box (11), its characterized in that: the mounting base (2) is provided with an elastic rubber support (4) for connecting a structural layer;
mounting base (2) are kept away from the side of structural layer and have been seted up standing groove (22), and in the diapire of standing groove (22) is connected with and is located the flexible ring group of shock attenuation (6) of mounting panel (3) below, mounting panel (3) are followed the degree of depth direction of standing groove (22) slides in standing groove (22).
2. The noise-reducing and shock-absorbing box type fan mounting structure according to claim 1, wherein: the shock-absorbing flexible ring set (6) comprises an inner flexible ring (61), a middle flexible ring (62) and an outer flexible ring (63) which are concentrically arranged;
the free end surface of the outer flexible ring (63) is positioned on the side of the free end surface of the middle flexible ring (62) far away from the bottom wall of the placing groove (22), and the free end surface of the middle flexible ring (62) is positioned on the side of the free end surface of the inner flexible ring (61) far away from the bottom wall of the placing groove (22).
3. The noise-reducing and shock-absorbing box type fan mounting structure according to claim 2, wherein: the inner flexible ring (61), the middle flexible ring (62) and the outer flexible ring (63) are all in a horn mouth shape, and the opening of the bottom wall faces away from the placing groove (22).
4. The noise-reducing and shock-absorbing box type fan mounting structure according to claim 1, wherein: the elastic rubber support (4) comprises a connecting screw rod (41), a gasket (42) sleeved on the connecting screw rod (41) and a rubber seat (43) sleeved on the connecting screw rod (41);
the end part of the connecting screw rod (41) sequentially penetrates through the gasket (42), the mounting base (2) and the rubber seat (43) and is inserted into the structural layer;
the gasket (42) is abutted between a nut of the connecting screw rod (41) and the mounting base (2);
the rubber seat (43) is abutted between the mounting base (2) and the structural layer.
5. The noise-reducing and shock-absorbing box type fan mounting structure according to any one of claims 1 to 4, wherein: the mounting plate (3) is provided with a sliding buffer mechanism (5), and the sliding buffer mechanism (5) comprises a movable block (51) sliding on the mounting plate (3), a hinge rod (52) hinged on the movable block (51) and an elastic piece for limiting the sliding of the movable block (51);
the end part of the hinge rod (52) is hinged on the box body (11).
6. The noise-reducing and shock-absorbing box type fan mounting structure according to claim 5, wherein: the movable block (51) and the hinged rod (52) are provided with two parts;
the elastic piece is a spring (53) connected between the two movable blocks (51).
7. The noise-reducing and shock-absorbing box type fan mounting structure according to claim 6, wherein: the mounting plate (3) is provided with a movable groove (32) which is matched with the movable block (51) in a sliding manner, and a guide rod (33) which is arranged in the movable block (51) in a penetrating manner is connected between two inner walls of the movable groove (32);
the spring (53) is sleeved on the guide rod (33).
8. The noise-reducing and shock-absorbing box type fan mounting structure according to claim 1, wherein: the inner side wall of the placing groove (22) is connected with silencing cotton (23).
CN202123448985.9U 2021-12-31 2021-12-31 Box fan mounting structure of making an uproar shock attenuation falls Active CN217207033U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123448985.9U CN217207033U (en) 2021-12-31 2021-12-31 Box fan mounting structure of making an uproar shock attenuation falls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123448985.9U CN217207033U (en) 2021-12-31 2021-12-31 Box fan mounting structure of making an uproar shock attenuation falls

Publications (1)

Publication Number Publication Date
CN217207033U true CN217207033U (en) 2022-08-16

Family

ID=82788409

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123448985.9U Active CN217207033U (en) 2021-12-31 2021-12-31 Box fan mounting structure of making an uproar shock attenuation falls

Country Status (1)

Country Link
CN (1) CN217207033U (en)

Similar Documents

Publication Publication Date Title
CN212365755U (en) Novel sound-absorbing and noise-reducing cavity for power capacitor
CN217207033U (en) Box fan mounting structure of making an uproar shock attenuation falls
CN216489596U (en) Cable branch box
CN216810496U (en) Stone curtain wall with efficient noise reduction function in green and environment-friendly construction
CN115924690A (en) Sound insulation elevator and sound insulation noise reduction device
CN214006079U (en) Assembled building shock-absorbing structure
CN212022548U (en) A board of making an uproar falls in novel sound insulation for car engine compartment lid
CN214148170U (en) Air conditioner external unit with damping structure
CN215058485U (en) Roofing fan mounting structure
CN213807976U (en) Vibration/noise reduction type compressor
CN209891526U (en) Integrated ceiling structure
CN210565187U (en) Vibration damping base for centrifugal fan
CN216304410U (en) Rubber support that shock attenuation performance is strong
CN208858388U (en) A kind of protective device for air door of coal-mining roadway
CN209067697U (en) The pre- vibration absorber of driven disc
CN212562952U (en) Shock attenuation anticollision window
CN111021230A (en) Bridge separates shock attenuation mild steel damping device
CN213567188U (en) Valve electric actuator capable of buffering and damping
CN218151250U (en) Wind power tower cylinder with protection function
CN217000229U (en) Expansion joint device
CN215258502U (en) Pipeline vibration/noise reduction structure
CN216407234U (en) Energy-saving damping box type fan
CN220666560U (en) Integrated house with shock-absorbing structure
CN213064466U (en) Shock attenuation formula diesel generating set
CN220341865U (en) High stability mounting bracket for block terminal

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant