CN211395430U - Adjustable deceleration strip - Google Patents

Adjustable deceleration strip Download PDF

Info

Publication number
CN211395430U
CN211395430U CN201920942209.8U CN201920942209U CN211395430U CN 211395430 U CN211395430 U CN 211395430U CN 201920942209 U CN201920942209 U CN 201920942209U CN 211395430 U CN211395430 U CN 211395430U
Authority
CN
China
Prior art keywords
shell
adjusting
hole
cabin
partition plate
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
CN201920942209.8U
Other languages
Chinese (zh)
Inventor
张蓉
颜飞彪
颜永夫
徐一翔
陈意凡
王宇涛
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.)
Ningbo University
Original Assignee
Ningbo University
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 Ningbo University filed Critical Ningbo University
Priority to CN201920942209.8U priority Critical patent/CN211395430U/en
Application granted granted Critical
Publication of CN211395430U publication Critical patent/CN211395430U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Body Structure For Vehicles (AREA)

Abstract

The utility model discloses a deceleration strip with adjustable, including the casing of straight prism form and set up at the inside cabin baffle of casing, the slope of cabin baffle relative horizontal plane sets up, and the edge of cabin baffle and the interior wall connection of casing, sets up on the cabin baffle and has adjusting hole and a plurality of water conservancy diversion hole, and the total cross sectional area in water conservancy diversion hole on every cabin baffle is less than the total cross sectional area in adjusting hole, and adjusting hole department is provided with the sealing plug, and the sealing plug is used for adjusting the on-state in adjusting hole. The cabin partition plate divides the interior of the shell into different chambers, and the adjacent chambers are communicated through the adjusting holes and the flow guide holes. The buffer solution is filled in the cavities, when the wheels are extruded on one cavity, the shell at the position of the cavity is pressed to deform, the wheels are buffered, and meanwhile, the buffer solution in the cavity flows into the adjacent cavity, so that the side wall of the adjacent cavity is tilted.

Description

Adjustable deceleration strip
[ technical field ] A method for producing a semiconductor device
The utility model relates to a deceleration strip with adjustable belongs to the deceleration strip field.
[ background of the invention ]
The speed reducing belt is one traffic facility for ensuring the running safety of pedestrians and vehicles, and has the basic design that some special road sections in city are provided with one kind of road surface protuberant device to produce violent mechanical vibration when the vehicle passes through at relatively high speed to reduce the speed of the vehicle and ensure the running safety of the road section. At present, the existing deceleration strip is usually made of cast steel products or rubber products, is a common road surface protrusion device, basically meets the safety problem of ensuring pedestrians and vehicles, but has a plurality of problems at the same time, the vehicles generate large impact on the panel of the deceleration strip at the moment of passing through the deceleration strip quickly, so that the operation of drivers and the comfort level of vehicle passengers are influenced, parts of the vehicles can be damaged due to severe friction, when the conditions are serious, the consequences of vehicle runaway, important part fracture and the like can be caused, the safe driving is influenced, the hardness of the deceleration strip is adjustable, vehicle drivers who feel decelerated can obtain better driving experience, and the driving safety is ensured more effectively. The deceleration strips with the same specification are used in different occasions, so that the humanized requirements of different occasions cannot be met, for example, the deceleration strips with the same performance used in roads and cells near schools cannot better meet the living requirements of people.
[ Utility model ] content
The utility model aims to solve the technical problem that overcome prior art not enough and provide a deceleration strip with adjustable hardness.
Solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a deceleration strip with adjustable, includes the casing of straight prism form and sets up the cabin baffle in the casing is inside, and the cabin baffle sets up relative horizontal plane slope, and the edge of cabin baffle and the inner wall connection of casing, sets up on the cabin baffle and has adjusting hole and a plurality of water conservancy diversion hole, and the total cross sectional area of water conservancy diversion hole on every cabin baffle is less than the total cross sectional area of adjusting hole, and adjusting hole department is provided with the sealing plug, and the sealing plug is used for adjusting the on-state of adjusting hole.
The utility model has the advantages that:
the cabin partition plate divides the interior of the shell into different chambers, and the adjacent chambers are communicated through the adjusting holes and the flow guide holes. The buffer solution is filled in the cavities, when the wheels are extruded on one cavity, the shell at the position of the cavity is pressed to deform, the wheels are buffered, and meanwhile, the buffer solution in the cavity flows into the adjacent cavity, so that the side wall of the adjacent cavity is tilted. The cabin baffle can also play the effect of skeleton to the casing, promotes the support ability of casing, prevents the excessive deformation of casing. Wherein the opening and closing state of regulation hole is changed through the relative position who adjusts sealing plug and regulation hole, and the buffer solution flow area between the corresponding different cavities changes, and the change speed when the cavity lateral wall receives the extrusion to produce deformation also can change, and flow area is less, and the velocity of flow is slower, and the hardness of corresponding deceleration strip is big more, and the shock attenuation effect is poor more. Taking the deceleration strip in the community as an example, the specifications of the vehicles entering and exiting the community are basically constant in a certain period, so the hardness requirement of the deceleration strip is also basically maintained in a constant state, and the property only needs to regularly adjust the opening and closing state of the adjusting hole according to the feedback of a user. Since the number of the cabin partition plates can be multiple, the larger the number of the cabin partition plates is, the larger the number of the chambers is, and the hardness of different positions of the shell can be adjusted. The diversion holes enable the adjacent chambers to be always communicated, so that the basic elasticity of the speed bump can be guaranteed even if all the adjusting holes are closed. However, the total sectional area of the adjusting holes is larger than that of the flow guide holes, so when the adjusting holes are communicated, the buffer solution mainly flows from the adjusting holes, and the flow guide holes can slightly change under the condition that the shell is extruded, so that the purpose of manually and actively roughly adjusting the hardness of the speed bump can be achieved by adjusting and adjusting, and meanwhile, the hardness of the speed bump can be finely adjusted in real time by the flow guide holes.
The cross section of casing is trapezoidal, and the lower bottom surface laminating of casing is in ground, and preceding, the back lateral wall homogeneous phase of casing set up to horizontal plane slope.
Cabin baffle perpendicular to casing's lower bottom surface sets up.
The rotation groove has been seted up to the lower bottom surface of casing, and the sealing plug includes sealed lid, spiral board, connecting rod and hemispherical cock body, and the spiral board rotates to set up at the rotation inslot, and sealed lid is fixed at the top of spiral board and will rotate the upper end in groove and seal, and the both ends of connecting rod set up respectively between the last bottom surface of sealed lid and cock body, and the regulation hole is the round hole, and the cock body is used for plugging up the regulation hole.
The rotating plate is clamped on the side wall of the rotating groove.
The lateral wall indent of rotating the groove forms the spacing groove, is fixed with the spacing piece on the rotating plate, and the locating part card is at the spacing inslot.
The locating part is the elasticity limiting plate that the level set up, perhaps is setting up at the spacing lug of rotating plate edge.
The bottom edge of sealed lid is provided with the step, and the lateral wall of step is laminated simultaneously on the inner wall of casing and the inner wall in rotation groove.
The utility model discloses regulation hole quantity on every cabin baffle is one.
Be provided with the rubber spare of a plurality of cones in the middle of the water conservancy diversion hole, the rubber spare distributes along the circumference in water conservancy diversion hole, leaves the space that supplies the buffer solution to flow between the rubber spare.
Other features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The invention will be further explained with reference to the drawings:
fig. 1 is a schematic perspective structural view of an adjustable deceleration strip according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a structure of a diversion hole in an embodiment 1 of the present invention;
fig. 3 is a schematic view of a sealing plug mounting structure according to embodiment 1 of the present invention;
fig. 4 is a schematic view of a sealing plug mounting structure according to embodiment 2 of the present invention;
fig. 5 is a schematic view of a sealing plug mounting structure according to embodiment 3 of the present invention.
[ detailed description ] embodiments
The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
In the following description, the appearances of the indicating orientation or positional relationship, such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are only for convenience in describing the embodiments and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
Example 1:
referring to fig. 1-3, the adjustable speed bump shown in this embodiment includes a casing 1 in a shape of a right prism and a compartment partition plate 2 disposed inside the casing 1, where the compartment partition plate 2 is disposed obliquely with respect to a horizontal plane, and an edge of the compartment partition plate 2 is connected to an inner wall of the casing 1 so as to be sealed, the compartment partition plate 2 partitions inside the casing 1 into different chambers, the more the number of the compartment partition plates 2 is, the more the number of the chambers is, and all the compartment partition plates 2 are disposed along an axial direction of the casing 1. Generally speaking, cabin baffle 2 perpendicular to casing 1's axial, the vertical setting of cabin baffle 2 under the deceleration strip normal operating condition to furthest plays the effect that forms the inside skeleton of casing 1, produces if unexpected such as bursting in order to avoid the vehicle to press excessive deformation after casing 1, reduces casing 1's life.
All fill in all the chambeies and have the buffer solution, wherein the bottom of casing 1 is provided with annotates liquid hole 11, and accessible annotates liquid hole 11 and adds or release buffer solution to casing 1 inside, cooperates a sealing plug to carry out the sealed of dismantlement formula to annotating liquid hole 11 simultaneously.
Each cabin partition plate 2 is provided with an adjusting hole 3 and a plurality of flow guide holes 4, wherein the flow guide holes 4 are uniformly distributed on the upper part of the cabin partition plate 2, the number of the adjusting holes 3 can be one or a plurality of, and the adjusting holes 3 are uniformly distributed on the lower part of the cabin partition plate 2. The diversion holes 4 are always in a conducting state, so that buffer solutions in different chambers can be exchanged through the diversion holes 4. The adjusting hole 3 is provided with a sealing plug which is used for adjusting the conduction state of the adjusting hole 3. When the sealing plug blocks up the regulation hole 3, then can not carry out buffer solution exchange through regulation hole 3 between the adjacent cavity, leave regulation hole 3 when the sealing plug, then except through water conservancy diversion hole 4, can also carry out buffer solution exchange through regulation hole 3 between the adjacent cavity. The total flow area between the corresponding adjacent chambers is the sum of the total cross section area of the flow guide holes 4 on the cabin partition plate 2 between the adjacent chambers and the total cross section area of the communicated adjusting holes 3.
In this embodiment, each cabin partition board 2 is completely the same, taking one of the cabin partition boards 2 as an example, the sectional area of a single diversion hole 4 is smaller than the sectional area of a single adjusting hole 3, the number of diversion holes 4 is greater than the number of adjusting holes 3, and in addition, on the cabin partition board 2, the total sectional area of all diversion holes 4 is smaller than the total sectional area of all adjusting holes 3, so the open-close state of a single adjusting hole 3 has a larger influence on the total flow through area of the cabin partition board 2, the flow change of the buffer solution at the cabin partition board 2 is larger when the corresponding shell 1 is extruded, and the conduction number of the corresponding control adjusting holes 3 is the rough adjustment of the hardness of the side wall of the shell 1.
The shell 1 can jointly deform the cabin partition plate 2 when being extruded, so that the size of the flow guide hole 4 is gradually reduced, but the deformation is not large, and the flow area of the cabin partition plate 2 can be finely adjusted along with the change of the weight of the vehicle when the vehicle is arranged on the shell 1.
Through the change of the number of the communicated adjusting holes 3 and the micro deformation of the flow guide holes 4, the matching of coarse adjustment and fine adjustment is realized, so that the hardness of the deceleration strip can be flexibly adjusted according to the requirement. The softer the speed bump, the better the shock absorption effect on the vehicle.
The greater the number of cabin partitions 2, the more regionally adjustable the housing 1 can be. For example, the width of the road in the cell is generally fixed, so that the contact position of the wheels and the shell 1 is fixed when vehicles pass through, accordingly, the flow area of the cabin partition plate 2 of the chamber below the wheels can be adjusted to be larger, the flow area of the other cabin partition plates 2 can be adjusted to be smaller, and the sectional adjustment of the speed bump is realized.
In a normal use state, the axial direction of the housing 1 is parallel to the horizontal plane, and the vehicle hits the housing 1 in the horizontal plane in a direction perpendicular to the axial direction of the housing 1. If the cross section of the housing 1 is configured as a circular arc, the horizontal velocity of the tire hitting the housing 1 may be suddenly reduced, resulting in severe shaking. Therefore, the cross section of the casing 1 is preferably designed to be trapezoidal, the lower bottom surface of the casing 1 is attached to the ground, and the front and rear side walls of the casing 1 are both inclined relative to the horizontal plane. Therefore, the horizontal speed is reduced less when the tire impacts the front and rear side walls of the housing 1, and the deceleration strip can not only remind the driver of decelerating, but also cannot generate excessive vibration.
Similarly, in the embodiment, the cabin partition board 2 is trapezoidal, and the cabin partition board 2 supports the shell from the inner side of the shell 1 to the maximum extent under the condition that the cabin partition board 2 is perpendicular to the lower bottom surface of the shell 1, so that the most basic mechanical strength of the shell 1 is ensured.
The sealing plug in the embodiment comprises a sealing cover 6, a rotating plate 7, a connecting rod 8 and a plug body 9. Rotation groove 5 has been seted up to casing 1's lower bottom surface, rotates groove 5 and sets up for cylindrical and along vertical direction, revolves board 7 and rotates the setting and rotate inslot 5 to avoid revolving board 7 and make the perk of casing 1 bottom. The sealing cover 6 is fixed on the top of the rotary plate 7 and seals the upper end of the rotary groove 5 to prevent the buffer solution from leaking out of the upper end of the rotary groove 5, and the sealing cover 6 is rotated together with the rotation of the rotary plate 7. The vertical setting of connecting rod 8, the lower extreme of connecting rod 8 is fixed with the last bottom surface of sealed lid 6, and the upper end and the cock body 9 of connecting rod 8 are fixed, and sealed lid 6 rotates and drives cock body 9 through connecting rod 8 and rotate.
Adjusting hole 3 is the round hole in this embodiment, and cock body 9 shape is hemispherical, and the vertical setting of flat bottom of cock body 9, the radius of cock body 9 are greater than adjusting hole 3 radius, and cock body 9 can progressively fill adjusting hole 3 at the rotation in-process, and when the flat bottom of cock body 9 was on a parallel with adjusting hole 3, the cock body 9 was stopped up adjusting hole 3 completely, and the flat bottom of cock body 9 was on a parallel with adjusting hole 3 this moment. The purpose of continuously adjusting the conduction area of the adjusting hole 3 by the rotary plate 7 is realized by the method.
Because the setting of rotating groove 5, sealed lid 6 misplaces or rocks the condition and can lead to rotating groove 5 upper end not tightly sealed, in order to reduce the emergence of above-mentioned condition, revolves the chucking of board 7 on rotating groove 5's lateral wall, utilizes rotating groove 5's lateral wall to fix a position the chucking to revolving board 7 to fix a position sealed lid 6 and rotating groove 5 upper end open-ended relative position. Furthermore, the greater friction between the rotating plate 7 and the side wall of the rotating groove 5 reduces the possibility of the seal cover 6 moving in the vertical direction under the continuous action of the hydraulic pressure.
In this embodiment, be provided with the rubber spare 10 of a plurality of pyramids in the middle of the water conservancy diversion hole 4, the circumference distribution of water conservancy diversion hole 4 is followed to all rubber spare 10, the edge at water conservancy diversion hole 4 is fixed to the diapire of rubber spare 10, the part that rubber spare 10 thickness is thinner is located the centre of water conservancy diversion hole 4, leave the space that supplies the buffer solution to flow between the rubber spare 10, can drive rubber spare 10 deformation under the great condition of buffer solution velocity of flow, make the space grow between the rubber spare 10, the buffer solution exchange of speeding up, avoid the pressure in the pressurized cavity too big.
Example 2:
referring to fig. 4, in this embodiment, the side wall of the rotating groove 5 is recessed to form a limiting groove 12, a limiting member 13 is fixed on the rotating plate 7, the limiting member 13 is clamped in the limiting groove 12, the rotating plate 7 drives the limiting member 13 to rotate in the limiting groove 12 when the rotating groove 5 rotates, and meanwhile, the side wall of the limiting groove 12 limits the limiting member 13 along the axial direction of the rotating groove 5, so that the rotating plate 7 is prevented from driving the sealing cover 6 to generate displacement along the axial direction of the rotating groove 5.
For example, in the embodiment, the limiting member 13 is an elastic limiting plate horizontally disposed, the limiting member 13 is parallel to the bottom surface of the rotating slot 5, and the elastic limiting plate is a circular plate and is perpendicular to the rotating plate 7. If sealed lid 6 is sealed under the not tight condition, the inner wall of elasticity limiting plate cooperation rotation groove 5 can also cut off buffer solution, avoids the below of buffer solution flow direction elasticity limiting plate.
Further, the sealing cover 6 may be a round cover having a diameter larger than that of the rotation groove 5, and the sealing cover 6 completely covers and presses the upper end of the rotation groove 5 against the inner wall of the case 1. On one hand, the sealing cover 6 is indirectly positioned by the limiting piece 13, and on the other hand, the sealing cover 6 is hydraulically operated in the shell 1, so that the sealing performance of the sealing cover 6 is fully ensured.
The limiting member 13 and the sealing cover 6 in this embodiment are both made of elastic rubber, so that the limiting member 13 is clamped into the limiting groove 12 through elastic deformation when the rotating plate 7 is installed, and the sealing cover 6 is pressed on the inner wall of the housing 1.
Example 3:
referring to fig. 5, the bottom edge of the sealing cover 6 in this embodiment is provided with a step 14, and the side wall of the step 14 is fitted to both the inner wall of the housing 1 and the inner wall of the rotation groove 5. The step 14 increases the contact area between the sealing cover 6 and the housing 1 to enhance the sealing effect, and at the same time, the sealing cover 6 can be firmly pressed against the inner wall of the housing 1 by the hydraulic pressure in the housing 1.
Example 4:
the difference between this embodiment and embodiment 1 is that the number of the adjusting holes on each cabin partition plate is one, so as to reduce the adjusting time of the counter-rotating plate on each cabin partition plate, but correspondingly reduce the adjustable range of the shell hardness.
Example 5:
the difference between this embodiment and embodiment 2 is that the limiting member is a limiting protrusion disposed at the edge of the rotating plate. The resistance of the limiting groove is small when the rotary plate is correspondingly rotated.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. The utility model provides a deceleration strip with adjustable which characterized in that: the novel cabin partition plate comprises a straight prism-shaped shell and a cabin partition plate arranged inside the shell, wherein the cabin partition plate is obliquely arranged relative to a horizontal plane, the edge of the cabin partition plate is connected with the inner wall of the shell, an adjusting hole and a plurality of flow guide holes are formed in the cabin partition plate, the total cross-sectional area of the flow guide holes in each cabin partition plate is smaller than that of the adjusting hole, a sealing plug is arranged at the adjusting hole and used for adjusting the conduction state of the adjusting hole.
2. The adjustable speed bump according to claim 1, wherein: the cross section of the shell is trapezoidal, the lower bottom surface of the shell is attached to the ground, and the front side wall and the rear side wall of the shell are obliquely arranged relative to the horizontal plane.
3. The adjustable speed bump according to claim 2, wherein: the cabin partition plate is arranged perpendicular to the lower bottom surface of the shell.
4. The adjustable speed bump according to claim 2, wherein: the rotating groove is formed in the lower bottom surface of the shell, the sealing plug comprises a sealing cover, a rotating plate, a connecting rod and a hemispherical plug body, the rotating plate is rotatably arranged in the rotating groove, the sealing cover is fixed at the top of the rotating plate and seals the upper end of the rotating groove, two ends of the connecting rod are respectively arranged between the upper bottom surface of the sealing cover and the plug body, the adjusting hole is a round hole, and the plug body is used for plugging the adjusting hole.
5. The adjustable speed bump according to claim 4, wherein: the rotating plate is clamped on the side wall of the rotating groove.
6. The adjustable speed bump according to claim 5, wherein: the side wall of the rotating groove is recessed inwards to form a limiting groove, a limiting part is fixed on the rotating plate, and the limiting part is clamped in the limiting groove.
7. The adjustable speed bump according to claim 6, wherein: the locating part is the elasticity limiting plate that the level set up, perhaps for setting up the spacing lug in the rotating plate edge.
8. The adjustable speed bump according to claim 4, wherein: the bottom edge of the sealing cover is provided with a step, and the side wall of the step is attached to the inner wall of the shell and the inner wall of the rotating groove at the same time.
9. The adjustable speed bump according to claim 1, wherein: the number of the adjusting holes on each cabin partition plate is one.
10. The adjustable speed bump according to claim 1, wherein: the middle of the diversion hole is provided with a plurality of conical rubber pieces which are distributed along the circumferential direction of the diversion hole, and a gap for buffer solution to flow is reserved between the rubber pieces.
CN201920942209.8U 2019-06-21 2019-06-21 Adjustable deceleration strip Active CN211395430U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920942209.8U CN211395430U (en) 2019-06-21 2019-06-21 Adjustable deceleration strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920942209.8U CN211395430U (en) 2019-06-21 2019-06-21 Adjustable deceleration strip

Publications (1)

Publication Number Publication Date
CN211395430U true CN211395430U (en) 2020-09-01

Family

ID=72207758

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920942209.8U Active CN211395430U (en) 2019-06-21 2019-06-21 Adjustable deceleration strip

Country Status (1)

Country Link
CN (1) CN211395430U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112195810A (en) * 2020-09-22 2021-01-08 靳书文 Municipal administration is with formula of taking a breath road surface deceleration strip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112195810A (en) * 2020-09-22 2021-01-08 靳书文 Municipal administration is with formula of taking a breath road surface deceleration strip

Similar Documents

Publication Publication Date Title
CN211395430U (en) Adjustable deceleration strip
CN202320179U (en) Warning device for early warning vehicle tilt
CN217719855U (en) Lithium battery module fixing device for electric scooter
CN207435959U (en) One kind can change nyctitropic Anti-reverse roadblock
CN115821806A (en) Intelligent deceleration strip
CN219446982U (en) Spring limiting structure of primary spring seat
EP2761239B1 (en) Cooling appliance and dispenser system used for cooling appliance
CN210659657U (en) Inclined surface oil sealing buffer
CN111267745B (en) Self-adaptive mobile phone support for new energy automobile
CN114654990A (en) New energy automobile chassis structure
CN214487165U (en) Plate hammer of hammer crusher
CN209603699U (en) A kind of side-door rotating shaft connecting structure
CN218063432U (en) Air volume adjusting equipment of air valve
CN202016139U (en) Novel fully closed rubber mixing machine
CN101612502B (en) Water prevention and noise reduction air filter
CN206943298U (en) A kind of motorcycle steering damper
CN201454279U (en) Motorcycle air filter
CN214225432U (en) GPS navigator with early warning device
CN211493964U (en) Bumper with good buffering performance
CN215934509U (en) Integrated vehicle-mounted charger
CN212175352U (en) Railway track damping device
CN215783639U (en) Crushing device for producing granular formaldehyde adsorbent for vehicle
CN218703041U (en) Vehicle-mounted audio and video chip control module
CN204095671U (en) A kind of inside-automobile rear mirror structure and automobile
CN214682828U (en) Sand screening machine for interior decoration

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant