CN215705637U - Suspension assembly - Google Patents

Abstract

The utility model provides a suspension assembly which comprises a body support, a vibration isolation bushing arranged in the body support and a supporting arm connected with the vibration isolation bushing, wherein the vibration isolation bushing comprises an outer pipe, a rubber body and an inner core; the rubber body has the brace rod to and the middle part connector that is supported by the brace rod, and in the middle part connector was located to the inner core, and the rubber body still had the stopper to the protruding setting of middle part connector, be equipped with on the inner wall of outer tube and imbed the brace rod respectively, and the spacing arch in at least one of them stopper. According to the suspension assembly, the rubber body has good impact-relieving performance and durability, the outer pipe is provided with the limiting bulge embedded with the supporting rib or the limiting block, the rubber body can be prevented from falling out of the outer pipe, and the connection reliability of the outer pipe and the rubber body and the durability of a product can be well improved.

Description

Suspension assembly

Technical Field

The utility model relates to the technical field of vehicle parts, in particular to a suspension assembly.

Background

Suspensions are automotive powertrain components used to reduce and control the transmission of engine vibrations and to provide support, and are currently used in the automotive industry. At present, the widely used suspension comprises the traditional pure rubber suspension and the hydraulic suspension with better dynamic and static performances.

Among them, the existing pure rubber suspension has a large weight, and is influenced by NVH (Noise, Vibration, Harshness Noise, Vibration and Harshness) performance requirements, and the diameter of the bushing is often required to be set to about 100mm, which leads to the reduction of the durability of the bushing, and in addition, the lightweight performance is also to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a suspension assembly to improve durability thereof.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a suspension assembly comprises a body bracket, a vibration isolation bushing arranged in the body bracket, and a supporting arm connected with the vibration isolation bushing; wherein,

the vibration isolation bushing comprises an outer pipe, a rubber body and an inner core, the vibration isolation bushing is pressed in the body bracket through the outer pipe, and one end of the supporting arm is pressed in the inner core;

the rubber body is provided with a support rib and a middle connecting body supported by the support rib, the inner core is arranged in the middle connecting body, and the rubber body is also provided with a limiting block protruding towards the middle connecting body;

the inner wall of the outer pipe is provided with a limiting bulge which is respectively embedded into the supporting rib and at least one limiting block.

Further, corresponding to each limiting protrusion, a concave pit is arranged on the outer wall of the outer pipe.

Furthermore, the two support ribs are arranged in a splayed shape; the limiting blocks comprise two bottom limiting blocks located between the supporting ribs and a top limiting block located above the middle connecting body, and the top limiting blocks and the bottom limiting blocks are arranged in an up-and-down corresponding mode.

Furthermore, the limiting blocks further comprise side limiting blocks which are respectively arranged on two sides of the middle connecting body.

Furthermore, a plurality of first noise reduction bulges which are arranged at intervals are arranged on the bottom limiting block; and/or a plurality of convex ridges arranged at intervals are arranged on the top limiting block and the side limiting block.

Further, the middle connecting body is provided with a blocking block for blocking one end of the inner core; the outer wall of the plugging block is provided with a plurality of strip-shaped grooves, and the outer wall of the plugging block is provided with a plurality of second noise reduction bulges which are arranged at intervals.

Furthermore, an anti-falling groove is formed in the inner core, and an anti-falling bulge embedded into the anti-falling groove is arranged at one end, pressed into the inner core, of the supporting arm; and/or the inner core is provided with a plurality of communicating holes, the middle connecting body is provided with an outer part covering the outer part of the inner core and an inner part covering the inner wall of the inner core, and the outer part and the inner part are connected through a connecting part penetrating through the communicating holes.

Further, the inner core is made of a coiled plate with two connected ends, and the two connected ends of the plate are provided with a clamping groove and a clamping block which are clamped together; and a chamfer for guiding one end of the bracket arm to be pressed in is formed on the inner side of the end part of the inner core.

Further, the outer tube is made of nylon; a flanging which is arranged in an outward turning manner is formed at one end of the outer pipe, and a positioning groove is formed in the flanging; the body support is provided with a plurality of through holes used for exhausting in electrophoresis.

Furthermore, at least one of a vibration reduction groove, a weight reduction groove and a positioning boss is arranged on the supporting arm; the vibration reduction groove is arranged at one end of the supporting arm inserted into the inner core; the weight reduction groove and the positioning boss are arranged at one end of the support arm outside the inner core; the weight reducing groove is formed in the top end face of the support arm, and a drain hole is formed in the weight reducing groove; the positioning boss is integrally formed on the bottom end face of the supporting arm.

Compared with the prior art, the utility model has the following advantages:

(1) according to the suspension assembly, the rubber body is structurally characterized in that the supporting ribs support the middle connecting body, so that the rubber body has good impact-relieving performance, the limiting blocks are arranged at the same time, the displacement of the middle connecting body when impacted can be limited, the durability of the rubber body can be better improved, the limiting bulges are arranged on the outer pipe to be embedded into the supporting ribs or the limiting blocks, the rubber body can be prevented from being separated from the outer pipe, and the connection reliability and durability of the outer pipe and the rubber body can be better improved.

(2) Corresponding to the limiting bulge, the outer wall of the outer tube is provided with the pits, so that a better weight reduction effect is achieved.

(3) The support rib is splayed, can be better firm support middle part connector, make the stopper include top stopper and bottom stopper, the displacement volume when can follow the better restraint middle part connector in upper and lower direction and receive the impact.

(4) Make the stopper include the lateral part stopper, be favorable to retraining the displacement volume when the middle part connector receives the impact from the lateral part, with aforementioned top stopper and the cooperation of bottom stopper, can retrain the displacement volume of middle part connector from a plurality of directions, and the durability and the shock resistance of improvement suspension assembly that can be better.

(5) The first noise reduction bulge is arranged on the bottom limiting block, and the convex edge is arranged on the top limiting block or the side limiting block, so that the contact area between the limiting block and the middle connecting body can be reduced, and a better vibration and noise reduction effect is achieved.

(6) The middle connecting body is provided with a plugging block which can limit the installation position of the inner core; and set up recess and the second on the outer wall of shutoff piece and fall the arch of making an uproar, reducible shutoff piece and external member's contactable area to improve the damping and the effect of making an uproar.

(7) The anti-drop groove is formed in the inner core, and the anti-drop bulge embedded into the anti-drop groove is formed in one end, pressed into the inner core, of the support arm, so that the support arm can be prevented from dropping from the vibration isolation bushing, and the connection reliability of the support arm and the vibration isolation bushing can be improved; the inner core is provided with the communicating hole, and the middle connecting body is provided with an outer part covering the outer side of the inner core, an inner part covering the inner side of the inner core and a connecting part penetrating the communicating hole, so that on one hand, the weight can be reduced, and the connection reliability of the rubber body and the inner core can be better improved, thereby further preventing the support arm from being separated from the vibration isolation bushing.

(8) The inner core is made by winding the plate, so that the development cost can be effectively reduced, and the two ends connected with the plate are provided with the clamping grooves and the clamping blocks which are clamped together, so that the two ends of the plate can be reliably connected together; and the inner side of the end part of the inner core is provided with a chamfer, so that the supporting arm can be conveniently pressed and mounted, aluminum scraps can be prevented from overflowing in the pressing and mounting process, and the product quality can be improved.

(9) The outer pipe is made of nylon, so that the weight is light and the cost is low; the flanging arranged in an everting mode is formed at one end of the outer pipe, the positioning grooves are formed in the flanging, the vibration isolation bushing can be rapidly and accurately installed on a die, the body support is provided with a plurality of through holes used for exhausting during electrophoresis, the electrophoresis yield of the body support can be improved, and the positioning function can be provided in the bushing press-fitting process.

(10) The damping grooves are arranged on the supporting arms, so that the supporting arms have a certain weight reduction effect while having a damping effect, and the weight of the product can be further reduced by arranging the weight reduction grooves; the positioning boss is arranged, so that the positioning boss is matched with an external component; the support arm is provided with the drain hole, so that water can be drained timely, and the durability of the product can be guaranteed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a suspension assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a body support according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

FIG. 4 is a schematic structural diagram of an outer tube according to an embodiment of the present invention;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 6 is a schematic structural diagram of the assembly of the outer tube and the rubber body according to the embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a rubber body according to an embodiment of the present invention;

FIG. 8 is a schematic view of the structure of FIG. 7 from another perspective;

FIG. 9 is a schematic view of the structure of FIG. 7 from another perspective;

FIG. 10 is a schematic structural view of an inner core according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a bracket according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of fig. 11 from a further viewing angle.

Description of reference numerals:

1. a body support; 2. a vibration isolation bushing; 3. a bracket arm;

101. a pipe body; 102. a first bracket; 103. a second bracket; 104. a third support; 105. a through hole;

201. an outer tube; 202. a rubber body; 203. an inner core;

2011. a limiting bulge; 2012. a pit; 2013. flanging; 2014. positioning a groove;

2021. supporting ribs; 2022. a middle connector; 2023. a bottom limiting block; 2024. a top stop block; 2025. a side stopper;

20221. a plugging block; 20222. a groove; 20223. a second noise reducing projection; 20224. an outer portion; 20225. an inner portion;

20231. a first noise reducing projection; 20241. convex edges;

2031. a drop-proof groove; 2032. a communicating hole; 2033. a clamping groove; 2034. a clamping block; 2035. chamfering;

301. the anti-drop bulge; 302. a vibration damping tank; 303. a weight reduction groove; 304. positioning the boss; 305. a drain hole; 306. and (7) installing holes.

Detailed Description

It should be noted that 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", "inside", "outside", etc. appear, they are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, third, etc. in this specification are not necessarily all referring to the same item, but are instead intended to be illustrative or implied.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.

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

The present embodiment relates to a suspension assembly, as shown in fig. 1, which mainly includes a body bracket 1, a vibration isolation bushing 2 and a bracket 3, in terms of an integral structure, wherein: the vibration isolation bush 2 is arranged in the body bracket 1, and the vibration isolation bush 2 is connected with the support arm 3.

In order to facilitate a better understanding of the suspension assembly of the present embodiment, the structure of the body bracket 1 will be described with reference to fig. 2 and 3. In this embodiment, the structure of the body bracket 1 may refer to the existing structure, or as shown in fig. 2 and 3, it mainly includes a sleeve-shaped pipe body 101, the cross section of which is circular, and one end of the pipe body 101 is plugged with an end plate, which is favorable for better matching with the vibration isolation bushing 2.

In this embodiment, the end plate of the support body is further provided with a through hole 105, which can exhaust air during electrophoresis of the body support 1, thereby facilitating improvement of the qualification rate of electrophoresis and providing a positioning function during press mounting. The number of the through holes 105 is not particularly limited, and may be two as shown in fig. 3, or may be another number.

A first bracket 102, a second bracket 103 and a third bracket 104 are arranged in the circumferential direction of the pipe body 101, wherein: the first bracket 102 and the second bracket 103 are symmetrically arranged on both sides of the lower portion of the pipe body 101, the third bracket 104 is disposed on the upper portion of the pipe body 101, and the first bracket 102, the second bracket 103, and the third bracket 104 can be connected to an external member via a connector passing through a hole thereof, such as a bolt.

It should be noted that the first support 102 and the second support 103 both include a bottom plate and side plates oppositely disposed on two sides of the bottom plate, the through holes are opened on the bottom plate, and the side plates are both provided with through holes 105, where the through holes 105 can also exhaust air when the body support 1 is subjected to electrophoresis, so as to further improve the yield of electrophoresis.

The vibration isolating bush 2 comprises an outer pipe 201, a rubber body 202 and an inner core 203 which are vulcanized and connected together, wherein the vibration isolating bush 2 is pressed in the body bracket 1 through the outer pipe 201, and one end of the bracket arm 3 is pressed in the inner core 203. Fig. 4 and 5 show the structure of the outer tube 201, fig. 6 to 9 show the structure of the rubber body 202, and fig. 10 shows the structure of the inner core 203.

Referring to fig. 4 and 5, the outer tube 201 is press-fitted into the tube 101, and is in a sleeve shape, a turned-over flange 2013 is formed at one end of the outer tube 201, and a semicircular positioning slot 2014 is formed in the turned-over flange 2013, so that the vibration isolation bushing 2 can be conveniently and rapidly mounted on a mold. The number of the positioning slots 2014 is not particularly limited, and may be two as shown in fig. 4 and 5, or may be other numbers.

In a specific structure, the inner wall of the outer tube 201 is provided with a limiting protrusion 2011 which is respectively embedded into the following supporting rib 2021 and a limiting block, so that the rubber body 202 can be prevented from being separated from the outer tube 201, and the connection reliability of the outer tube 201 and the rubber body 202 can be improved. In this embodiment, the limiting protrusions 2011 are disposed corresponding to the bottom limiting block 2023, the two supporting ribs 2021 and the two side limiting blocks 2025, and the number of the limiting protrusions 2011 may be set according to actual needs, which is not specifically limited herein.

It should be noted that, along the axial direction of the outer tube 201, the middle portion of the limiting protrusion 2011 has approximately 10mm straight ends which are slightly convex relative to the two ends, and a draft angle is provided from the middle portion to the two ends to facilitate the draft.

As a preferred possible embodiment, corresponding to the limiting protrusions 2011, the outer wall of the outer tube 201 is further provided with the concave pits 2012, so that a better weight reduction effect is achieved. Here, according to the size of the limiting protrusion 2011, the number and arrangement of the dimples 2012 can be flexibly adjusted. In this embodiment, a plurality of pits 2012 corresponding to the same limiting protrusion 2011 are preferably arranged at intervals in sequence along the axial direction of the outer tube 201, which is further beneficial to improving the anti-dropping reliability.

It should be noted that the outer tube 201 of the present embodiment is preferably made of nylon, which has a light weight and a low cost, and besides, the outer tube 201 may also be made of other existing materials, such as stainless steel.

Referring to fig. 6 to 9, the rubber body 202 has a supporting rib 2021 and a middle connecting body 2022 supported by the supporting rib 2021, the inner core 203 described below is disposed in the middle connecting body 2022, and the rubber body 202 further has a limiting block protruding toward the middle connecting body 2022.

In a specific structure, the two support ribs 2021 are arranged in a splayed shape, and can support the middle connector stably. The limiting blocks include a bottom limiting block 2023 located between the two supporting ribs 2021, and a top limiting block 2024 located above the middle connector 2022, and the top limiting block 2024 and the bottom limiting block 2023 are disposed vertically and correspondingly, so as to better restrict the displacement of the middle connector 2022 when impacted.

In addition, the limiting blocks further include side limiting blocks 2025 respectively disposed at two sides of the middle connecting body 2022, which is beneficial to laterally restrict the displacement of the middle connecting body 2022 when impacted. Here, the side stopper 2025 cooperates with the top stopper 2024 and the bottom stopper 2023 to restrict the displacement of the middle connector 2022 from multiple directions, thereby better improving the durability and impact resistance of the suspension assembly.

The bottom stopper 2023 is provided with a plurality of first noise reduction protrusions 20231 arranged at intervals, the first noise reduction protrusions 20231 are preferably distributed on the bottom stopper in a plurality of positions, and the top stopper 2024 and the side stopper 2025 are provided with a plurality of protruding ridges 20241 arranged at intervals, and the protruding ridges 20241 are preferably distributed along the circumference of the middle connector 2022 in a plurality of positions, so that the position contactable with the middle connector 2022 is in a wave shape, so the arrangement is favorable for reducing the contactable area of the stopper and the middle connector 2022, and the vibration and noise reduction effect is better.

It should be noted that, while the first noise reduction protrusion 20231 is disposed on the bottom stopper 2023, the protrusions 20241 are disposed on both the top stopper 2024 and the side stopper 2025, in addition, it is needless to say that only the first noise reduction protrusion 20231 is disposed on the bottom stopper 2023, or only the protrusions 20241 are disposed on the top stopper 2024 or the side stopper 2025. In addition, it is needless to say that the bottom stopper 2023 may be provided with a protrusion 20241, and the top stopper 2024 and the side stopper 2025 may be provided with a first noise reduction protrusion 20231.

The middle connector 2022 has a ring-shaped member for covering the core 203, and a sealing block 20221 for sealing one end of the core 203 is disposed at one end of the ring-shaped member, so as to limit the installation position of the core 203. Specifically, the ring-shaped member has an outer portion 20224 covering the outer side of the core 203, an inner portion 20225 covering the inner side of the core 203, and a connecting portion inserted into the communication hole 2032 described below, so that the connection reliability between the rubber body 202 and the core 203 can be improved, and the bracket 3 can be prevented from coming off the vibration damping bush 2.

The outer wall of the blocking block 20221 is provided with a plurality of strip-shaped grooves 20222, the grooves 20222 are preferably arranged in parallel, the outer wall of the blocking block 20221 is provided with a plurality of second noise reducing protrusions 20223 arranged at intervals, and the second noise reducing protrusions 20223 are arranged on the periphery of each groove 20222, which is beneficial to reducing the contact area between the blocking block 20221 and an external component, thereby improving the vibration and noise reduction effect.

The structure of the inner core 203 can be as shown in fig. 10, which is made by winding a plate material, and the two ends of the plate material are welded together, which can effectively reduce the development cost. In the concrete structure, the two ends of the plate connected are provided with a clamping groove 2033 and a clamping block 2034 which are clamped together, the clamping groove 2033 and the clamping block 2034 are correspondingly arranged, and the shape is dovetail-shaped, so that the two ends of the plate body can be reliably connected together.

A chamfer 2035 is formed at the inner side of the end of the inner core 203, as shown in fig. 10, chamfers 2035 are provided at both sides of the inner core 203, which can guide one end of the bracket arm 3 to press in, and can facilitate the press fitting of the bracket arm 3, thereby preventing aluminum scraps from overflowing during the press fitting, and being beneficial to improving the product quality.

The inner core 203 is provided with a plurality of communication holes 2032, in this embodiment, two side communication holes 2032 are respectively provided at the upper part and the lower part of the inner core 203, the two side communication holes 2032 are respectively disposed at two sides of the inner core 203, and each row of communication holes 2032 is a plurality of communication holes arranged at intervals along the inserting direction of the bracket arm 3. With this arrangement, on the one hand, the weight can be reduced, and on the other hand, the connection between the outer portion 20224 and the inner portion 20225 via the connection portion passing through the communication hole 2032 can be facilitated, whereby the retaining reliability can be improved.

Continuing to refer to fig. 10, the inner core 203 is further provided with a disengagement preventing groove 2031, specifically, the square hole of the two chamfers 2035 near the inner core 203 is the disengagement preventing groove 2031 matched with the disengagement preventing protrusion 301, which can be matched with the disengagement preventing protrusion 301 to prevent the bracket 3 from disengaging, and the two square holes near the other end of the inner core 203 have the function of reducing weight.

The structure of the bracket arm 3 can be seen from fig. 11 and 12, one end of the bracket arm 3 pressed into the inner core 203 is provided with two anti-falling protrusions 301 embedded in the anti-falling groove 2031, in this embodiment, the two anti-falling protrusions 301 can be embedded in the anti-falling groove 2031 to prevent the bracket arm 3 from falling off the vibration isolation bushing 2, so that the connection reliability of the bracket arm 3 and the vibration isolation bushing 2 can be improved.

In addition, as shown in fig. 11, the bracket arm 3 is further provided with damping grooves 302, specifically, the damping grooves 302 are provided at one end of the bracket arm 3 inserted into the inner core 203, which may be four as shown in fig. 11, or may be other number, and have a certain weight reduction effect while having a damping effect.

In addition, three mounting holes 306 are further formed in the exposed part of the bracket arm 3, and the three mounting holes 306 are arranged in a triangular shape. A positioning boss 304 protruding outwards is further formed on the bottom end face of the exposed part of the bracket arm 3, the positioning boss 304 is located in the middle of the three mounting holes 306, and the positioning boss is I-shaped, has good structural strength, and is beneficial to being matched and positioned with an external component.

Meanwhile, a weight reduction groove 303 is formed on the other side of the support arm 3 corresponding to the positioning boss 304, the weight reduction groove 303 is formed in the top end face of the support arm 3, and a water drainage hole 305 is formed in the weight reduction groove 303, so that the weight of the product can be further reduced by the weight reduction groove 303, and the water drainage hole 305 is beneficial to timely drainage of water, and further beneficial to guarantee the durability of the product. In this structure, the diameter of the drain hole 305 is preferably 4 to 8mm, for example, it may be 6mm, to have a good drainage effect.

In the suspension assembly of the present embodiment, the rubber body 202 has a better impact-alleviating performance and a higher durability, and the connection reliability between the parts is high, which is further beneficial to improving the durability of the suspension assembly.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A suspension assembly, characterized by: the vibration isolation device comprises a body support (1), a vibration isolation bushing (2) arranged in the body support (1), and a support arm (3) connected with the vibration isolation bushing (2); wherein,

the vibration isolation bushing (2) comprises an outer pipe (201), a rubber body (202) and an inner core (203), the vibration isolation bushing (2) is pressed in the body support (1) through the outer pipe (201), and one end of the supporting arm (3) is pressed in the inner core (203);

the rubber body (202) is provided with a supporting rib (2021) and a middle connecting body (2022) supported by the supporting rib (2021), the inner core (203) is arranged in the middle connecting body (2022), and the rubber body (202) is also provided with a limiting block which is arranged to protrude towards the middle connecting body (2022);

the inner wall of the outer pipe (201) is provided with a limiting bulge (2011) which is respectively embedded into the supporting rib (2021) and at least one of the limiting blocks.

2. The suspension assembly of claim 1, wherein:

corresponding to each limiting protrusion (2011), a pit (2012) is arranged on the outer wall of the outer pipe (201).

3. The suspension assembly of claim 1, wherein:

the two support ribs (2021) are arranged in a splayed shape;

the limiting blocks comprise a bottom limiting block (2023) located between the two supporting ribs (2021) and a top limiting block (2024) located above the middle connecting body (2022), and the top limiting block (2024) and the bottom limiting block (2023) are arranged up and down correspondingly.

4. The suspension assembly of claim 3, wherein:

the limiting blocks also comprise side limiting blocks (2025) which are respectively arranged at two sides of the middle connecting body (2022).

5. The suspension assembly of claim 4, wherein:

a plurality of first noise reduction protrusions (20231) which are arranged at intervals are arranged on the bottom limiting block (2023); and/or the presence of a gas in the gas,

the top limiting block (2024) and the side limiting block (2025) are provided with a plurality of convex ridges (20241) which are arranged at intervals.

6. The suspension assembly of claim 1, wherein:

the middle connecting body (2022) is provided with a blocking block (20221) for blocking one end of the inner core (203);

the outer wall of the blocking block (20221) is provided with a plurality of strip-shaped grooves (20222), and the outer wall of the blocking block (20221) is provided with a plurality of second noise reduction protrusions (20223) which are arranged at intervals.

7. The suspension assembly of claim 1, wherein:

an anti-falling groove (2031) is formed in the inner core (203), and an anti-falling bulge (301) embedded into the anti-falling groove (2031) is formed in one end, pressed into the inner core (203), of the supporting arm (3); and/or the presence of a gas in the gas,

the inner core (203) is provided with a plurality of communicating holes (2032), the middle connecting body (2022) is provided with an outer part (20224) covering the outer part of the inner core (203) and an inner part (20225) covering the inner wall of the inner core (203), and the outer part (20224) is connected with the inner part (20225) through a connecting part penetrating the communicating holes (2032).

8. The suspension assembly of claim 1, wherein:

the inner core (203) is made of coiled plates with two connected ends, and the two connected ends of the plates are provided with a clamping groove (2033) and a clamping block (2034) which are clamped together;

a chamfer (2035) for guiding one end of the bracket arm (3) to be pressed in is formed on the inner side of the end part of the inner core (203).

9. The suspension assembly of claim 1, wherein:

the outer pipe (201) is made of nylon;

a flanging (2013) which is arranged in an outward turning mode is formed at one end of the outer pipe (201), and a positioning groove (2014) is formed in the flanging (2013);

the body support (1) is provided with a plurality of through holes (105) used for exhausting in electrophoresis.

10. The suspension assembly of any of claims 1-9, wherein:

at least one of a vibration reduction groove (302), a weight reduction groove (303) and a positioning boss (304) is arranged on the supporting arm (3);

the vibration reduction groove (302) is arranged at one end of the bracket arm (3) inserted into the inner core (203);

the weight reduction groove (303) and the positioning boss (304) are arranged at one end of the bracket arm (3) which is positioned outside the inner core (203);

the weight reduction groove (303) is formed in the top end face of the support arm (3), and a water drainage hole (305) is formed in the weight reduction groove (303);

the positioning boss (304) is integrally formed on the bottom end face of the supporting arm (3).

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