CN214578556U

CN214578556U - Shock pad

Info

Publication number: CN214578556U
Application number: CN202120452946.7U
Authority: CN
Inventors: 翁耳楠
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-11-02
Anticipated expiration: 2031-03-02

Abstract

The utility model provides a shock pad for the installation of equipment on the installation basis. The cushion includes a base cushion member and a pressure bladder, wherein the base cushion member is configured to fit between the equipment and the mounting base to form an intermediary for supporting the equipment on the mounting base, and wherein a mounting chamber having a reduced volume is provided in the base cushion member due to the equipment being compressed against vibrations of the mounting base. The pressure-filling bag is installed and filled in the installation cavity, and the medium with set pressure is filled in the pressure-filling bag to form the inhibition of the pressure-filling bag to the reduction of the volume of the installation cavity. The utility model discloses a shock pad, accessible change fill in the pressurization bag into the pressure of medium in order to change the elasticity bearing performance of whole shock pad, are favorable to shock pad vibration isolation performance application scope's increase.

Description

Shock pad

Technical Field

The utility model relates to an equipment shock attenuation technical field, in particular to shock pad.

Background

In order to reduce vibration and noise generated by the vibration, a shock pad is generally additionally arranged for vibration isolation when equipment which vibrates due to self operation is installed on an installation base. For example, an air filter assembly of a vehicle is assembled on a vehicle frame using a shock pad.

The existing shock pad is in a single rubber pad form, and the hardness and the elastic vibration isolation performance of the shock pad are fixed; the self hardness range of the rubber pad is relied on to meet the isolation requirement of the vibration of the parts of the air intake system. When a vehicle runs under an extremely cold temperature condition, the original vibration isolation effect is lost due to the characteristics of rubber products, and the problem of abnormal vibration and noise is caused; when the automobile runs under the condition of extremely hot temperature, the rubber product is over-soft due to the effect of the cabin temperature and the environment temperature, the original vibration isolation characteristic is lost, and the problems of large shaking amount of parts, abnormal sound caused by collision and the like are easy to occur. Therefore, when different vehicles run under different working conditions, products span platforms and span power applications, the existing rubber shock pad has the problem that the vibration isolation effect of the shock pad is insufficient due to different excitation changes of a power system and different external vibration excitations, so that the vibration isolation effect and the noise isolation effect of equipment are greatly reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a shock pad, which is beneficial to increase the application range of the vibration isolation performance of the shock pad.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a cushion for installation of equipment on an installation foundation, the cushion comprising:

a base pad assembly configured to fit between the equipment and the mounting base to form an intermediary for the mounting base to carry the equipment, and having a mounting cavity on the base pad assembly that is collapsible to a reduced volume due to vibration of the equipment relative to the mounting base;

and the pressurizing bag is arranged and filled in the mounting cavity, and a medium with set pressure is filled in the pressurizing bag, so that the pressurizing bag can inhibit the volume of the mounting cavity from becoming smaller.

Further, the base cushion part comprises a base for bearing the equipment, the installation cavity is arranged on the base, and the pressurizing bag is inserted and limited in the installation cavity.

Furthermore, the pressure bag is in a shape of a cake with two sides bulging outwards, and the installation cavity is arranged along the shape of the pressure bag and is orthogonal to the bearing direction of the base.

Furthermore, the middle parts of two sides of the bulge of the pressurizing bag are formed with outward protruding limit platforms, limit grooves matched with the limit platforms are arranged in the installation cavity, the pressurizing bag is inserted into the installation cavity, and the limit platforms are clamped in the limit grooves to limit the pressurizing bag in the installation cavity.

Furthermore, the edge of the pressure bag is provided with a filling port for filling the medium.

Further, the pressure-filling bag is formed by blow molding of rubber.

Further, the basic cushion part comprises a neck post arranged on the base and a clamping head positioned at the end part of the neck post, the equipment is sleeved on the neck post through an installation part on the equipment, the installation part is clamped between the clamping head and the base, and the basic cushion part and the equipment are assembled.

Furthermore, along the axial direction of the neck post, an insertion hole penetrating to the bottom of the base is formed in the base cushion part, and an insertion post on the mounting base is inserted into the insertion hole so as to form assembly between the base cushion part and the mounting base.

Furthermore, the middle part of the pressurizing bag is provided with a plug-in hole which is plugged in the mounting cavity along with the pressurizing bag, the plug-in hole is opposite to the plug-in hole, and the plug-in column can be plugged in the plug-in hole and the mounting hole.

Furthermore, the inner wall of the insertion hole is in a corrugated pipe shape.

Compared with the prior art, the utility model discloses following advantage has:

shock pad, install the chamber through seting up on basic cushion spare, install the pressurized bag that is filled with pressure medium in installing the intracavity, when the shock pad that the pad was established between equipment and installation basis is extruded because of the vibration of equipment, the cushion can be realized to the cushion's elastic buffer vibration isolation effect by the pressure reaction elasticity that relies on the pressurized bag, and the medium pressure through changing in the pressurized bag can change the elastic deformation performance of pressurized bag moreover to do benefit to the increase of shock pad vibration isolation performance application scope.

In addition, the pressurizing bag is arranged in the installation cavity of the foundation cushion piece in an insertion mode, so that the pressurizing bag can be conveniently detached, pressurized and replaced, and the limit structure can prevent the pressurizing bag from falling off. The pressurizing bag is of a cake-shaped structure with two raised sides and is arranged in a direction orthogonal to the bearing direction of the base, so that the pressurizing bag has a larger bearing area, the bearing performance of the shock pad can be kept, and the elastic deformation recovery performance of the pressurizing bag can be exerted in the vibration isolation effect.

Drawings

The accompanying drawings, which form a part of the present disclosure, are provided to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the present disclosure, wherein the related terms in the front, back, up, down, and the like are only used to represent relative positional relationships, and do not constitute an undue limitation of the present disclosure. In the drawings:

FIG. 1 is a schematic view of an assembly relationship between a cushion and a device and an installation base according to an embodiment of the present invention;

FIG. 2 is a schematic view of a disassembled structure of the shock pad according to the embodiment of the present invention;

FIG. 3 is a front view of a cushion according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

description of reference numerals:

1. equipment; 10. an installation part; 100. an assembly hole; 2. installing a foundation; 200. inserting a column; 201. a fin;

3. a shock pad; 30. a base pad assembly; 300. inserting holes; 301. clamping a head; 302. a neck post; 303. a base; 3030. installing a cavity; 3031. a deformation auxiliary groove; 3032. a connecting portion; 3033. a limiting groove; 31. inflating the bladder; 310. inserting and aligning holes; 3100. an inner cavity; 311. a limiting table; 312. an inner wall; 313. a fill port.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless expressly limited otherwise. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to a shock pad, which can change the elastic bearing performance of the whole shock pad by changing the pressure of a medium filled in a pressurizing bag, and is beneficial to the increase of the application range of the vibration isolation performance of the shock pad.

The shock pad is used for mounting equipment on a mounting base and comprises a base pad piece and a pressurizing bag. Wherein the base pad assembly is configured to fit between the equipment and the mounting base to form an intermediary for carrying the equipment of the mounting base, and wherein the base pad assembly is provided with a mounting cavity having a reduced volume due to the equipment being compressed by vibration relative to the mounting base. The pressurizing bag is installed and filled in the installation cavity, and the medium with set pressure is filled in the pressurizing bag, so that the volume of the installation cavity is restrained from being reduced by the pressurizing bag.

Based on the above design concept, an exemplary assembly structure of the cushion of the present embodiment to the assembly relationship of the equipment and the installation base is shown in fig. 1, and an exemplary structure of the cushion of the present embodiment is shown in fig. 2.

Specifically, as shown in fig. 2, the cushion 3 includes a base cushion member 30 and a pressurizing bladder 31. Wherein, the base pad unit 30 is provided with a mounting chamber 3030 whose volume is reduced by being pressed by the vibration of the device 1 relative to the mounting base 2; the pressurizing bag 31 is installed in the installation chamber 3030, and is filled in the installation chamber 3030, at least in the vibration direction of the equipment 1 to fill the installation chamber 3030; in this way, the pressurizing bag 31 can be changed in synchronization with the vibration of the apparatus 1, and the shape of the mounting chamber 3030. The medium having a set pressure is filled in the pressurizing bag 31, and the pressurizing bag 31 has an elastic force to return to an original shape under the pressure of the medium, so that the pressurizing bag 31 forms a suppression against the reduction of the volume of the mounting chamber 3030.

In this embodiment, the base cushion assembly 30 includes a base 303 for carrying the weight of the apparatus 1, a mounting chamber 3030 is open on the base 303, and the pressurized bladder 31 is insertable and captivated within the mounting chamber 3030. The installation of the inflation bladder 31 in the installation cavity 3030 of the base cushion 30 facilitates the removal, inflation and replacement of the inflation bladder 31, and the limit structure prevents the inflation bladder 31 from falling out.

The outer shape of the pressure-charging bag 31 may have various forms, and may be a spherical shape, a disk shape, or the like, and in the present embodiment, the pressure-charging bag 31 has a disk shape with both sides bulging outward, the mounting chamber 3030 is provided following the outer shape of the pressure-charging bag 31, and the mounting chamber 3030 also having a disk shape with both upper and lower sides bulging is provided in a form orthogonal to the load-bearing direction of the base 303. The cake-shaped structure is arranged in a direction orthogonal to the bearing direction of the base 303, so that most of the gravity borne by the base 303 is pressed on the upper side surface and the lower side surface of the pressurizing bag 31, the pressurizing bag 31 has a larger bearing area, the bearing performance of the shock pad 3 is favorably maintained, and the elastic deformation recovery performance of the pressurizing bag 31 is exerted in the vibration isolation effect.

In order to facilitate the filling of the medium into the inner cavity 3100 of the pressurizing bag 31, a filling port 313 for filling the medium is opened at an edge portion of the pressurizing bag 31. A check valve operable to discharge the medium may be provided in the filling port 313, and the medium charged in the pressurizing bag 31 cannot be discharged from the check valve in a natural state thereof. For example, a tire valve configuration may be used. The charged medium may be a gas or a liquid, for example, an inert gas, an antifreeze, a hydraulic oil, etc. The opening of the inflation port 313 at the edge of the inflation bladder 31 facilitates the medium charging or discharging operation of the inflation bladder 31 when it is in the mounting chamber 3030.

The pressure-charging bag 31 may be made of a high-toughness material having excellent airtightness, and in the present embodiment, the pressure-charging bag 31 is formed by blow molding a rubber material, and the rubber used may be one of NBR (nitrile butadiene rubber), EPDM (ethylene propylene diene monomer), AEM (ethylene acrylate rubber), and the like. The pressurizing bag 31 made by blow molding of rubber has good sealing property and toughness, and is beneficial to improving the vibration isolation performance of the shock pad 3. In the case of using the pressure-charging bag 31 made of a rubber material, the set pressure of the medium charged into the pressure-charging bag 31 is preferably set to 1.1 to 1.4atm (standard atmospheric pressure).

Meanwhile, the medium pressure in the pressurizing bag 31 can be flexibly adjusted according to different equipment working conditions. The device 1 takes an air filter assembly of a vehicle as an example, and in an extremely hot area, the pressure range of the medium filled into the pressure filling bag 31 is recommended to be 1.1-1.2 times of standard atmospheric pressure; in extremely cold regions and off-road vehicle types, the pressure range of the charged medium is recommended to be 1.3-1.4 times of standard atmospheric pressure.

Based on the above-mentioned arrangement shapes of the inflating bag 31 and the mounting cavity 3030, the limiting structure therebetween can be flexibly designed, and preferably, a convex limiting platform 311 is formed at the middle position of the two raised side surfaces of the inflating bag 31, for example, the limiting platform 311 can be set to be in a circular truncated cone shape. A limit groove 3033 matched with the limit table 311 is arranged in the mounting cavity 3030, and the limit table 311 is clamped in the limit groove 3033 along with the insertion of the inflating bag 31 into the mounting cavity 3030, so that the limit of the inflating bag 31 in the mounting cavity 3030 is formed. The design has simple structure and convenient processing and manufacture, and because of the deformable characteristic of the pressurizing bag 31, the pressurizing bag 31 can be slightly flattened during the insertion so as to allow the limiting table 311 to enter the limiting groove 3033 of the mounting cavity 3030.

As shown in fig. 2 and 3, the base 303 is preferably cylindrical, the mounting chamber 3030 is formed in the middle of the base 303 to penetrate through the base 303 in the radial direction, and connecting portions 3032 are left on two sides of the mounting chamber 3030 to maintain the upper and lower portions of the base 303 to be integrally connected. Based on this design requirement, the base gasket 30 is preferably integrally injection molded by using a rubber material, which may be any one of NBR (nitrile butadiene rubber), EPDM (ethylene propylene diene monomer), etc., so that the connecting portion 3032 can be deformed in response to the shape change of the mounting chamber 3030, and the base 303 itself can have an elastic deformation vibration isolation effect.

It should be noted that the shock pad of the present embodiment can be applied to the installation of various devices requiring vibration isolation, for example, an engine assembly, an air filter assembly, and other devices, and accordingly, the installation base 2 can be a framework, an installation frame, and other devices of a vehicle. As shown in fig. 1, in the present embodiment, the apparatus 1 is provided with a plurality of mounting portions 10, and mounting holes 100 are opened on the mounting portions 10; a plurality of vertical upward inserting columns 200 are fixedly arranged on the installation foundation 2, convex clamping fins 201 are arranged on the side faces of the tops of the inserting columns 200, the number and the positions of the installation parts 10 and the inserting columns 200 correspond to each other one by one, and a shock pad 3 is assembled between each pair of installation parts 10 and the inserting columns 200, so that an intermediary for bearing the equipment 1 by the installation foundation 2 is formed, and vibration isolation between the equipment 1 and the installation foundation 2 is realized.

Based on the above-mentioned assembly conditions, as shown in fig. 3 and 4 in combination with fig. 1, in the present embodiment, the base cushion unit 30 of the cushion 3 includes a base 303 for mounting the pressure bladder 31, a neck 302 provided at the top of the base 303, and a stopper 301 provided at the top end of the neck 302. The neck 302 is designed as a cylinder, and the radial dimension of the neck 302 is smaller than that of the base 303, and the two are coaxially arranged. The chuck 301 is designed into a disc shape, and protrudes out of the side wall of the neck column 302 in the radial direction, and meanwhile, the top edge of the chuck 301 is chamfered, so that the assembly hole 100 of the mounting part 10 can slide through the chuck 301 by means of the guidance of the chamfer and is sleeved on the neck column 302.

Due to the rubber material configuration of the base cushion member 30, the collet 301 can be deformed to contract in its radial direction to pass through the fitting hole 100, and when the device 1 and the cushion 3 are fitted in place, the mounting portion 10 is sandwiched between the collet 301 and the base 303, thereby forming a connection between the base cushion member 30 and the device 1. Adopt the form that above-mentioned suit card was put to install equipment 1 on shock pad 3, the convenient installation of equipment 1 of being convenient for does benefit to the improvement of equipment 1 assembly efficiency on installation basis 2.

In order to quickly realize the assembly of the shock pad 3 on the installation base 2. The base pad 30 is provided with an insertion hole 300 penetrating to the bottom of a base 303 in the axial direction of a neck 302, and the insertion post 200 of the mounting base 2 is inserted into the insertion hole 300 from the bottom of the base 303 to form the assembly between the base pad 30 and the mounting base 2. Preferably, the insertion hole 300 is entirely formed through the base pad assembly 30, the top of the insertion column 200 passes through the insertion hole 300 and protrudes from the top of the collet 301, and the snap fin 201 is snapped on the top of the collet 301 to improve the connection between the mounting base 2 and the cushion 3. The snap fin 201 may be formed in a wedge shape, and may pass through the insertion hole 300 by expanding it by the rubber deformability of the base packing 30, and may be retained above the chuck 301.

As shown in fig. 4, in view of the insertion feature of the insertion column 200, an insertion hole 310 is formed in the middle of the pressurizing bag 31, and the insertion hole 310 faces the insertion hole 300 as the pressurizing bag 31 is inserted into the mounting chamber 3030, so that the insertion column 200 can be inserted into both. Thus, the insertion posts 200 are inserted into the insertion holes 310 and 300 and located at the axis of the entire cushion 3, so that the center of gravity of the cushion 3 is located at the center of the pressure-applying bag 31, the distribution of the force applied by the pressure-applying bag 31 is balanced, and the elastic vibration-isolating effect of the pressure-applying bag 31 is achieved.

In order to make the elastic deformation of the bladder skin of the pressurizing bladder 31 at the portion of the inner wall 312 of the insertion-paired hole 310 in the axial direction of the insertion-paired hole 310, i.e., in the load-bearing direction of the cushion 3, smoother and thereby reduce the occurrence of irregular wrinkling and rupture of the bladder skin at the portion of the inner wall 312, the inner wall 312 of the pressurizing bladder 31 at the portion of the insertion-paired hole 310 is also configured to have a bellows shape in the axial direction of the neck post 302.

In addition, a plurality of deformation auxiliary grooves 3031 can be formed in the side wall of the base 303 above and/or below the mounting cavity 3030 to enhance the elastic deformation performance of the base 303, so that the vibration isolation requirement of the air filter assembly under the daily driving condition of a vehicle can be met.

In the shock pad of this embodiment, the installation cavity 3030 is formed in the base pad assembly member 30, the pressure-charging bag 31 filled with the pressure medium is installed in the installation cavity 3030, when the shock pad 3 padded between the equipment 1 and the installation base 2 is pressed due to the vibration of the equipment 1, the elastic buffering and vibration isolation effect of the shock pad 3 can be realized by the pressure-receiving reaction elastic force of the pressure-charging bag 31, and the elastic deformation performance of the pressure-charging bag 31 can be changed by changing the pressure of the medium in the pressure-charging bag 31, thereby being beneficial to the increase of the application range of the vibration isolation performance of the shock pad.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A shock-absorbing pad for the mounting of a device (1) on a mounting base (2), characterized in that the shock-absorbing pad (3) comprises:

a base cushion member (30), the base cushion member (30) being configured to be fittable between the equipment (1) and the mounting base (2) to form an intermediary of the mounting base (2) for carrying the equipment (1), and a mounting chamber (3030) being provided on the base cushion member (30), the mounting chamber (3030) being volumetrically reducible by being pressed by vibration of the equipment (1) relative to the mounting base (2);

and the inflation bag (31) is arranged and filled in the installation cavity (3030), and a medium with set pressure is filled in the inflation bag (31) so that the inflation bag (31) can inhibit the volume of the installation cavity (3030) from decreasing.

2. The cushion of claim 1, wherein: the base cushion part (30) comprises a base (303) for bearing the equipment (1), the installation cavity (3030) is arranged on the base (303), and the pressurizing bag (31) is inserted and limited in the installation cavity (3030).

3. The cushion of claim 2, wherein: the inflating bag (31) is in a shape of a cake with two sides bulging outwards, and the mounting cavity (3030) is arranged along the shape of the inflating bag (31) and is orthogonal to the bearing direction of the base (303).

4. The cushion of claim 3, wherein: the middle parts of two raised sides of the inflating bag (31) are formed with convex limiting tables (311), a limiting groove (3033) matched with the limiting table (311) is arranged in the mounting cavity (3030), the inflating bag (31) is inserted into the mounting cavity (3030), and the limiting table (311) is clamped in the limiting groove (3033) to limit the inflating bag (31) in the mounting cavity (3030).

5. The cushion of claim 3, wherein: the edge of the pressure bag (31) is provided with a filling port (313) for filling the medium.

6. The cushion of claim 5, wherein: the inflation bladder (31) is formed by blow molding of rubber.

7. The cushion according to any one of claims 2 to 6, wherein: basis dress spare (30) is including locating neck post (302) on base (303), and be located dop (301) of neck post (302) tip, equipment (1) through installation department (10) suit on itself in on the neck post (302), just installation department (10) are held in dop (301) with between base (303), and constitute basis dress spare (30) with assembly between equipment (1).

8. The cushion of claim 7, wherein: along the axial direction of the neck post (302), an insertion hole (300) penetrating to the bottom of the base (303) is formed in the base cushion part (30), and an insertion post (200) on the installation base (2) is inserted into the insertion hole (300) to form the assembly between the base cushion part (30) and the installation base (2).

9. The cushion of claim 8, wherein: the middle part of the inflating bag (31) is provided with an inserting hole (310), the inflating bag (31) is inserted into the mounting cavity (3030), and the inserting hole (310) is opposite to the inserting hole (300) so that the inserting column (200) can be inserted into the inserting hole and the mounting cavity.

10. The cushion of claim 9, wherein: the inner wall (312) of the insertion hole (310) is in a corrugated pipe shape.