Axial self-limiting suspension

Abstract

The present invention discloses an axial self-limiting suspension, comprising an inner core, an outer sleeve and a rubber member, wherein the inner core is wrapped by the rubber member, and the outer sleeve surrounds the rubber member; an assembly portion is provided at one end or both ends of the rubber member, and the rubber member and the assembly portion are designed as an integrated whole; in the present invention, the axial limiting function is realized by the assembly portion, thereby eliminating the limiting plate design; not only the suspension is lightweight, but also the assembly of the present invention is more convenient and quick, and at the same time, it is also beneficial to improve the constraint mode of the suspension in the assembled state and the bracket, prevent noise caused by resonance, and improve the NVH performance of the whole vehicle.

Description

Technical Field

[0001] The invention relates to the field of design and manufacture of automobile parts, and more specifically, to an axial self-limiting suspension. Background Art

[0002] The suspension is an automotive powertrain component used to reduce and control the transmission of engine vibration and play a supporting role. In existing conventional suspensions, there is no axial limiting structure, so a riveted limiting plate is required to achieve the axial limiting function, which in turn increases the product weight and makes assembly more difficult. At the same time, the axial riveted limiting plate of the suspension will lead to a low constraint mode of the bracket, resulting in low NVH performance of the vehicle. Summary of the invention

[0003] The present invention overcomes the deficiencies of the prior art and provides an axial self-limiting suspension with simple structure, reasonable design, light weight, convenient assembly and higher NVH performance of the whole vehicle.

[0004] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0005] An axial self-limiting suspension comprises an inner core, an outer sleeve and a rubber member, wherein the inner core is wrapped by the rubber member and the outer sleeve surrounds the rubber member; an assembly portion is arranged at one or both ends of the rubber member, and the rubber member and the assembly portion are designed as an integrated whole.

[0006] Furthermore, the rubber part includes a matching part, a connecting part and an installation part; the matching part matches with the outer sleeve, an inner space is provided in the matching part, and the installation part is provided in the inner space; the installation part wraps the inner core; the connecting part connects the matching part and the installation part; the assembly part is provided on the connecting part, and is located at both ends of the connecting part and matches with the corresponding installation positions.

[0007] Furthermore, the mounting portion also includes a movable limit block, which is arranged on the outer surface of the mounting portion; a movable limit portion is arranged on the matching portion, and the movable limit portion is arranged on the inner surface of the matching portion; the movable limit block and the movable limit portion are both in the inner space, the movable limit block moves with the swing of the mounting portion and the inner core, and the movable limit portion is on the movable path of the movable limit block.

[0008] Furthermore, the matching portion is provided with a first opening, and the first opening is located on the movable path of the movable limit block; and the outer sleeve is provided with a second opening corresponding to the first opening.

[0009] Furthermore, a first support space is provided in the movable limit block, and an installation space for assembling the inner core is provided in the installation portion, and the first support space is communicated with the installation space; the inner core includes a first support block, and when the inner core enters the installation space and is wrapped by the installation portion, the first support block enters the first support space;

[0010] A second supporting space is arranged in the movable limiting part; the inner surface of the outer sleeve is arranged on a second supporting block matched with the second supporting space; when the outer sleeve and the rubber part are assembled, the second supporting block enters the second supporting space.

[0011] Furthermore, a first assembly limiting portion is provided in the first supporting space, and a first assembly limiting groove corresponding to the first assembly limiting portion is provided on the first supporting block, and when the first supporting block cooperates with the first supporting space, the first assembly limiting portion enters the first assembly limiting groove;

[0012] The second support block is provided with a second assembly limiting portion, and a second assembly limiting groove corresponding to the second assembly limiting portion is arranged in the second support space, and when the outer sleeve is matched with the rubber member, the second assembly limiting portion enters the second assembly limiting groove.

[0013] Furthermore, the inner core and the rubber member are both axially symmetrical columns, the first support blocks are symmetrically arranged on both sides of the inner core, and the movable limit blocks are symmetrically arranged on both sides of the mounting portion; the movable limit portion is above the first opening, the second support block is above the second opening, the second assembly limit portion is arranged on the end face of the second support block away from the second opening, and a contact block is arranged on the end face of the movable limit portion close to the first opening, and the contact block is in contact with the movable limit block.

[0014] Furthermore, the outer sleeve and the rubber part are detachably matched; a matching groove is provided on the outer wall of the matching part, and a matching column is provided above the matching groove; a matching block is provided on the inner surface of the outer sleeve, and a lower matching space is provided at one end of the matching block close to the bottom of the suspension, and a lower matching opening is provided at one end of the matching block close to the bottom of the suspension; when the outer sleeve and the rubber part are matched, the matching column enters the lower matching space through the lower matching opening, and the end of the matching block close to the bottom of the suspension enters the matching groove and fits with the matching groove.

[0015] Furthermore, the axial length of the connecting portion is smaller than the axial length of the matching portion and the axial length of the mounting portion, and the axial length of the outer sleeve corresponds to the axial length of the matching portion; during the suspended assembly, the corresponding installation positions respectively enter the top and the bottom of the inner space and cooperate with the assembly portions at both ends of the connecting portion.

[0016] Furthermore, an upper mating space is provided at one end of the mating block close to the top of the suspension, and an upper mating opening is provided at one end of the mating block close to the top of the suspension; when the top of the corresponding installation position entering the inner space is mated with the assembly portion, the upper mating space is entered through the upper mating opening;

[0017] A buffer block is also provided on the inner surface of the matching portion, and the buffer block is provided corresponding to the matching groove, and an auxiliary assembly space is provided at a position of the buffer block corresponding to the matching column, and an auxiliary assembly opening is provided at one end of the auxiliary assembly space close to the suspension bottom; when the matching column enters the lower matching space, the auxiliary assembly space is in the lower matching space, and when the corresponding installation position enters the bottom of the inner space and matches with the assembly portion, it enters the auxiliary assembly space through the auxiliary assembly opening;

[0018] The bottoms of the outer sleeve and the matching portion are both provided with auxiliary assembly portions surrounding the two, and auxiliary assembly notches are provided on the auxiliary assembly portions.

[0019] The beneficial effects of the present invention are:

[0020] In the present invention, an assembly part is provided at one or both ends of the rubber part, and the axial limiting function is realized by the assembly part, thereby eliminating the limit plate design; not only the suspension is made lightweight, but also the assembly of the present invention is more convenient and quick, and it is also beneficial to improve the constraint mode of the suspension and the bracket in the assembled state, prevent noise caused by resonance, and improve the NVH performance of the whole vehicle.

[0021] In the present invention, since the mating portion needs to cooperate with the outer sleeve and the installation portion needs to cooperate with the inner core, the connecting portion is arranged between the mating portion and the installation portion and connects the two; therefore, the assembly portion is arranged on the connecting portion, so that the axial force can be better transmitted to various areas of the present invention, thereby better alleviating the force.

[0022] In the present invention, when the inner core is moved by the force, the movable limit block will move with the swing of the mounting portion and the inner core, and the movable limit portion is on the movable path of the movable limit block; the present invention can limit the movable range of the movable limit block by the movable limit portion, thereby preventing the inner core from being excessively moved so as to damage the rubber part, and when the rubber part is deformed and tightened, the buffering and shock absorbing effect will be poor.

[0023] In the present invention, since the rubber part itself has elasticity, when the movable limit block moves with the swing of the mounting part and the inner core, it can relieve a certain force under the action of the elasticity of the rubber part itself; the setting of the first opening and the second opening can allow the movable limit block to pass through the matching part and the outer sleeve through the first opening and the second opening when moving, so as to avoid touching the matching part or the outer sleeve, which would affect the relief of the force received by the present invention; at the same time, compared with the method of using a matching part with a larger internal space to enable the movable limit block to have a larger range of movement, the setting of the first opening and the second opening in the present invention allows the present invention to use a matching part with a smaller internal space, so that the production cost of the present invention is lower.

[0024] In the present invention, the provision of the first supporting space and the first supporting block makes the contact surface between the mounting portion and the inner core larger, more fitted, and the fit tighter; the provision of the second supporting space and the second supporting block makes the contact surface between the matching portion and the outer sleeve larger, more fitted, and the fit tighter.

[0025] In the present invention, the provision of the first assembly limit portion and the first assembly limit groove further strengthens the assembly strength between the mounting portion and the inner core; the provision of the second assembly limit portion and the second assembly limit groove further strengthens the assembly strength between the matching portion and the outer sleeve.

[0026] In the present invention, the inner core and the rubber member are both axially symmetrical columns, so that the assembly of the various components in the present invention is more stable and balanced; at the same time, since the movable limit blocks are symmetrically arranged on both sides of the mounting portion, when the movable limit blocks move with the swing of the inner core, the movable limit blocks will correspondingly swing in a manner to relieve the force, and when the movable limit block on one side of the mounting portion is lower, the movable limit block on the other side of the mounting portion will tilt up and touch the contact block, thereby limiting the movable range of the movable limit block.

[0027] In the present invention, the outer sleeve and the rubber part are detachably matched, and when the outer sleeve and the rubber part are matched, the matching column enters the lower matching space through the lower matching opening, and the end of the matching block close to the bottom of the suspension enters the matching groove and fits with the matching groove, so that the outer sleeve and the rubber part are more secure after assembly.

[0028] In the present invention, during suspension assembly, the corresponding installation positions respectively enter the top and bottom of the inner space and cooperate with the assembly parts at both ends of the connecting part, making the assembly of the present invention more firm and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is the overall structure diagram of the present invention.

[0030] Figure 2 This is a bottom structure diagram of the present invention.

[0031] Figure 3 This is the inner core structure diagram.

[0032] Figure 4 This is the bottom structure diagram of the inner core.

[0033] Figure 5 This is a structural diagram of rubber parts.

[0034] Figure 6 This is a diagram of the bottom structure of the rubber part.

[0035] Figure 7 The top view of the rubber part.

[0036] Figure 8This is a bottom view of the rubber part.

[0037] Fig. 9 This is the assembly department structure diagram.

[0038] Fig.10 This is a diagram of the jacket structure.

[0039] Fig.11 This is a diagram of the bottom structure of the jacket.

[0040] Numbers in the figure:

[0041] 1. Inner core; 2. Outer jacket; 3. Rubber member; 4. Assembly part; 11. First support block; 12. First assembly limit groove; 21. Second opening; 22. Second support block; 23. Second assembly limit part; 24. Matching block; 25. Lower matching space; 26. Upper matching space; 31. Matching part; 32. Connecting part; 33. Mounting part; 34. Auxiliary assembly part; 35. Auxiliary assembly notch; 41. First assembly plate; 42. Second assembly plate; 43. Third assembly plate; 44. First connecting plate; 45. Second connecting plate; 46. First assembly space; 47. Second assembly space; 48. Assembly opening; 241. First matching block; 242. Second matching block; 251. Lower matching opening; 2 61. Upper matching opening; 281. Auxiliary assembly opening; 310. Contact block; 311. Inner space; 312. Movable limiting portion; 313. First opening; 314. Second supporting space; 315. Second assembly limiting groove; 316. Matching column; 317. Buffer block; 318. First buffer block; 319. Second buffer block; 320. Auxiliary assembly space; 321. First connecting column; 322. Second connecting column; 323. Third connecting column; 324. Fourth connecting column; 331. Movable limiting block; 332. First supporting space; 333. Installation space; 334. First assembly limiting portion; 335. First movable limiting block; 336. Second movable limiting block; 341. Matching groove. DETAILED DESCRIPTION

[0042] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments are only specific descriptions of the present invention, and their purpose is to allow those skilled in the art to better understand the technical solutions of the present invention, and should not be regarded as limitations of the present invention.

[0043] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Example:

[0046] like Figure 1-11 As shown, an axial self-limiting suspension comprises an inner core 1, an outer sleeve 2 and a rubber member 3, wherein the inner core 1 is wrapped by the rubber member 3, and the outer sleeve 2 surrounds the rubber member 3; an assembly portion 4 is provided at one end or both ends of the rubber member 3, and the rubber member 3 and the assembly portion 4 are designed as an integrated whole; in the present invention, the axial limiting function is realized by the assembly portion 4, thereby eliminating the limiting plate design; not only the suspension is made lightweight, but also the assembly of the present invention is made more convenient and quick, and at the same time, it is also beneficial to improve the constraint mode of the suspension in the assembled state and the bracket, prevent noise caused by resonance, and improve the NVH performance of the whole vehicle.

[0047] The rubber part 3 includes a matching portion 31, a connecting portion 32 and a mounting portion 33; the matching portion 31 matches with the outer sleeve 2, an inner space 311 is provided in the matching portion 31, and the mounting portion 33 is provided in the inner space 311; the mounting portion 33 wraps the inner core 1; the connecting portion 32 connects the matching portion 31 and the mounting portion 33; the assembly portion 4 is provided on the connecting portion 32, and is located at both ends of the connecting portion 32 and matches with the corresponding mounting position; in the present invention, since the matching portion 31 needs to match with the outer sleeve 2, and the mounting portion 33 needs to match with the inner core 1, the connecting portion 32 is provided between the matching portion 31 and the mounting portion 33 and connects the two; therefore, the assembly portion 4 is provided on the connecting portion 32, so that the axial force can be better transmitted to various regions of the present invention, thereby better alleviating the force.

[0048] In the present embodiment, the assembly portion 4 includes a first assembly plate 41, a second assembly plate 42, a third assembly plate 43, a first connecting plate 44 and a second connecting plate 45; the first assembly plate 41, the second assembly plate 42 and the third assembly plate 43 are arranged along the end surfaces at both ends of the connecting portion 32; the first connecting plate 44 connects the first assembly plate 41 and the second assembly plate 42 to form a first assembly space 46, and the second connecting plate 45 connects the second assembly plate 42 and the third assembly plate 43 to form a second assembly space 47; corresponding installation positions are provided with assembly grooves corresponding to the first assembly plate 41, the second assembly plate 42, the third assembly plate 43, the first connecting plate 44 and the second connecting plate 45, and auxiliary assembly plates are arranged along the assembly grooves; when the present invention cooperates with the corresponding installation positions, the first assembly plate 41, the second assembly plate 42, the third assembly plate 43, the first connecting plate 44 and the second connecting plate 45 enter the assembly grooves, and the auxiliary assembly plates are arranged along the assembly grooves. The auxiliary assembly plate enters the first assembly space 46 and the second assembly space 47, thereby making the axial assembly of the present invention more firm and stable; at the same time, in this embodiment, the first connecting plate 44 and the second connecting plate 45 are connected to different ends of the second assembly plate 42, so that the first assembly space 46 and the second assembly space 47 are both provided with assembly openings 48, and the orientations of the assembly openings 48 are inconsistent; the provision of the assembly openings 48 makes it easy to assemble the assembly portion 4; at the same time, since the rubber member 3 will produce a certain deformation when subjected to a force, if there is a hard contact between the auxiliary assembly plate and the assembly portion 4, both of them are easily damaged, and the assembly openings 48 with different orientations on the first assembly space 46 and the second assembly space 47 provide the auxiliary assembly plate with a certain activity space to alleviate the hard contact and avoid damage; at the same time, the first connecting plate 44 and the second connecting plate 45 can limit the range of movement to prevent it from falling off.

[0049] In some preferred embodiments, the present invention can select assembly parts 4 of different shapes and structures according to actual use requirements, so that the present invention is more firm and stable when axially assembled through the assembly part 4.

[0050] In the present embodiment, the mounting portion 33 further comprises a movable limit block 331, which is arranged on the outer surface of the mounting portion 33; a movable limit portion 312 is arranged on the matching portion 31, and the movable limit portion 312 is arranged on the inner surface of the matching portion 31; the movable limit block 331 and the movable limit portion 312 are both located in the inner space 311, the movable limit block 331 moves with the swing of the mounting portion 33 and the inner core 1, and the movable limit portion 312 is located on the movable path of the movable limit block 331; when the inner core 1 is moved by the force, the movable limit block 331 moves with the swing of the mounting portion 33 and the inner core 1, and the movable limit portion 312 is located on the movable path of the movable limit block 331; the present invention can limit the movable range of the movable limit block 331 through the movable limit portion 312, so as to avoid excessive movement of the inner core 1 to damage the rubber member 3, and when the rubber member 3 is deformed and tightened, the buffering and shock absorbing effect will be poor.

[0051] In the present embodiment, the matching portion 31 is provided with a first opening 313, and the first opening 313 is located on the movable path of the movable limit block 331; the outer sleeve 2 is provided with a second opening 21 corresponding to the first opening 313; in the present invention, since the rubber member 3 itself has elasticity, when the movable limit block 331 moves with the swinging of the mounting portion 33 and the inner core 1, it can relieve a certain force under the action of the elasticity of the rubber member 3 itself; the setting of the first opening 313 and the second opening 21 enables the movable limit block 331 to pass through the matching portion 31 and the outer sleeve 2 through the first opening 313 and the second opening 21 when it moves, so as to avoid touching the matching portion 31 or the outer sleeve 2, which affects the relief of the force received by the present invention; at the same time, compared with the method of using a matching portion 31 with a larger inner space 311 to enable the movable limit block 331 to have a larger movable range, the setting of the first opening 313 and the second opening 21 in the present invention enables the present invention to use a matching portion 31 with a smaller inner space 311, so that the production cost of the present invention is lower.

[0052] In this embodiment, a first supporting space 332 is provided in the movable limiting block 331, and a mounting space 333 for assembling the inner core 1 is provided in the mounting portion 33, and the first supporting space 332 is communicated with the mounting space 333; the inner core 1 includes a first supporting block 11, and when the inner core 1 enters the mounting space 333 and is wrapped by the mounting portion 33, the first supporting block 11 enters the first supporting space 332; a second supporting space 314 is provided in the movable limiting portion 312; the inner surface of the outer sleeve 2 is provided on a second supporting block 22 that cooperates with the second supporting space 314; when the outer sleeve 2 and the rubber member 3 are assembled, the second supporting block 22 enters the second supporting space 314; the provision of the first supporting space 332 and the first supporting block 11 makes the contact surface between the mounting portion 33 and the inner core 1 larger and more fitted, and also makes the fit tighter; the provision of the second supporting space 314 and the second supporting block 22 makes the contact surface between the matching portion 31 and the outer sleeve 2 larger and more fitted, and also makes the fit tighter.

[0053] In this embodiment, a first assembly limit portion 334 is provided in the first supporting space 332, and a first assembly limit groove 12 corresponding to the first assembly limit portion 334 is provided on the first supporting block 11. When the first supporting block 11 cooperates with the first supporting space 332, the first assembly limit portion 334 enters the first assembly limit groove 12; a second assembly limit portion 23 is provided on the second supporting block 22, and a second assembly limit groove 315 corresponding to the second assembly limit portion 23 is provided in the second supporting space 314. When the outer sleeve 2 cooperates with the rubber member 3, the second assembly limit portion 23 enters the second assembly limit groove 315; the provision of the first assembly limit portion 334 and the first assembly limit groove 12 further strengthens the assembly strength between the mounting portion 33 and the inner core 1; the provision of the second assembly limit portion 23 and the second assembly limit groove 315 further strengthens the assembly strength between the matching portion 31 and the outer sleeve 2.

[0054] It is worth mentioning that the shapes of the first assembly limit portion 334 and the second assembly limit portion 23 can be selected according to actual conditions, and can be columnar, straight plate-shaped, etc. It should be noted that the shapes of the first assembly limit groove 12 and the second assembly limit groove 315 need to correspond to the shapes of the first assembly limit portion 334 and the second assembly limit portion 23 respectively.

[0055] In this embodiment, the inner core 1 and the rubber member 3 are both in the shape of an axisymmetric column, so that the assembly of the various components in the present invention is more stable and balanced; the first support blocks 11 are symmetrically arranged on both sides of the inner core 1, and the movable limit blocks 331 are symmetrically arranged on both sides of the mounting portion 33; the movable limit portion 312 is located above the first opening 313, the second support block 22 is located above the second opening 21, the second assembly limit portion 23 is arranged on the end face of the second support block 22 away from the second opening 21, and the movable limit portion 312 is located near the first opening 313. The end surface of 3 is provided with a contact block 310, and the contact block 310 is in contact with the movable limit block 331; since the movable limit blocks 331 are symmetrically arranged on both sides of the mounting portion 33, when the movable limit blocks 331 move with the swing of the inner core 1, the movable limit blocks 331 will correspondingly swing to relieve the force, and when the movable limit block 331 on one side of the mounting portion 33 is lower, the movable limit block 331 on the other side of the mounting portion 33 will tilt up and touch the contact block 310, thereby limiting the movable range of the movable limit block 331.

[0056] In this embodiment, the sleeve 2 and the rubber part 3 are detachably matched; a matching groove 341 is provided on the outer wall of the matching portion 31, and a matching column 316 is provided above the matching groove 341; a matching block 24 is provided on the inner surface of the sleeve 2, and a lower matching space 25 is provided at one end of the matching block 24 close to the bottom of the suspension, and a lower matching opening 251 is provided at one end of the matching block 24 close to the bottom of the suspension; when the sleeve 2 and the rubber part 3 are matched, the matching column 316 enters the lower matching space 25 through the lower matching opening 251, and the end of the matching block 24 close to the bottom of the suspension enters the matching groove 341 and fits with the matching groove 341; the matching column 316 enters the lower matching space 25 through the lower matching opening 251, and the end of the matching block 24 close to the bottom of the suspension enters the matching groove 341 and fits with the matching groove 341, so that the sleeve 2 and the rubber part 3 are more secure after assembly.

[0057] The axial length of the connecting portion 32 is smaller than the axial length of the matching portion 31 and the axial length of the mounting portion 33, and the axial length of the outer sleeve 2 corresponds to the axial length of the matching portion 31; during the suspended assembly, the corresponding mounting positions respectively enter the top of the inner space 311 and the bottom of the inner space 311 and cooperate with the mounting portions 4 at both ends of the connecting portion 32; making the assembly of the present invention more firm and stable.

[0058] In this embodiment, an upper mating space 26 is provided at one end of the mating block 24 close to the top of the suspension, and an upper mating opening 261 is provided at one end of the mating block 24 close to the top of the suspension; when the top of the inner space 311 corresponding to the installation position is mated with the assembly portion 4, the upper mating space 26 is entered through the upper mating opening 261; a buffer block 317 is further provided on the inner surface of the mating portion 31, and the buffer block 317 is provided corresponding to the mating groove 341, and an auxiliary assembly space 320 is provided at the position of the buffer block 317 corresponding to the mating column 316, and an auxiliary assembly opening 281 is provided at one end of the auxiliary assembly space 320 close to the bottom of the suspension; the mating When the column 316 enters the lower matching space 25, the auxiliary assembly space 320 is in the lower matching space 25, so that the matching portion 31 of the present invention and the outer sleeve 2 are matched more closely, and when the corresponding installation position enters the bottom of the inner space 311 and matches with the assembly portion 4, it enters the auxiliary assembly space 320 through the auxiliary assembly opening 281; the setting of the upper matching space 26 and the auxiliary assembly space 320 makes the assembly of the present invention more firm and stable; the bottom of the outer sleeve 2 and the matching portion 31 are both provided with an auxiliary assembly portion 34 surrounding the two, and an auxiliary assembly notch 35 is provided on the auxiliary assembly portion 34; making the assembly of the present invention more firm and stable.

[0059] In this embodiment, the connecting portion 32 is in an "X"-shaped column, and the connecting portion 32 includes a first connecting column 321, a second connecting column 322, a third connecting column 323 and a fourth connecting column 324. The movable limit block 331 includes a first movable limit block 335 and a second movable limit block 336. The first movable limit block 335 is arranged between the first connecting column 321 and the second connecting column 322, and the second movable limit block 336 is arranged between the third connecting column 323 and the fourth connecting column 324. The first movable limit block 335 and the second movable limit block 336 are arranged between the first movable limit block 335 and the second movable limit block 336. on the same straight line; the mating block 24 includes a first mating block 241 and a second mating block 242, and the buffer block 317 includes a first buffer block 318 and a second buffer block 319; the first mating block 241 and the first buffer block 318 are correspondingly arranged, and the first mating block 241 and the first buffer block 318 are located in the area between the first connecting column 321 and the third connecting column 323; the second mating block 242 and the second buffer block 319 are correspondingly arranged, and the second mating block 242 and the second buffer block 319 are located in the area between the second connecting column 322 and the fourth connecting column 324.

[0060] It is worth noting that the shapes of the matching portion 31 , the connecting portion 32 and the mounting portion 33 can be changed according to needs to adapt to different assembly environments.

[0061] It is worth noting that other technical solutions of the present invention belong to the prior art and will not be described in detail.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the concept of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An axial self-limiting suspension, comprising an inner core, an outer sleeve and a rubber member, wherein the inner core is wrapped by the rubber member and the outer sleeve surrounds the rubber member; It is characterized in that One end or both ends of the rubber piece are provided with an assembly portion, and the rubber piece and the assembly portion are designed as an integrated whole; The rubber part includes a matching part, a connecting part and a mounting part; the matching part matches with the outer sleeve, an inner space is provided in the matching part, and the mounting part is provided in the inner space; the mounting part wraps the inner core; the connecting part connects the matching part and the mounting part; the assembly part is provided on the connecting part and is located at both ends of the connecting part and matches with the corresponding mounting positions; The mounting portion further comprises a movable limiting block, which is arranged on the outer surface of the mounting portion; a movable limiting portion is arranged on the matching portion, which is arranged on the inner surface of the matching portion; the movable limiting block and the movable limiting portion are both located in the inner space, the movable limiting block moves with the swing of the mounting portion and the inner core, and the movable limiting portion is located on the movable path of the movable limiting block; The matching portion is provided with a first opening, and the first opening is located on the movable path of the movable limit block; and the outer sleeve is provided with a second opening corresponding to the first opening.

2. An axial self-limiting suspension according to claim 1, It is characterized in that A first support space is provided in the movable limit block, and an installation space for assembling the inner core is provided in the installation portion, and the first support space is communicated with the installation space; the inner core includes a first support block, and when the inner core enters the installation space and is wrapped by the installation portion, the first support block enters the first support space; A second supporting space is arranged in the movable limiting part; the inner surface of the outer sleeve is arranged on a second supporting block matched with the second supporting space; when the outer sleeve and the rubber part are assembled, the second supporting block enters the second supporting space.

3. An axial self-limiting suspension according to claim 2, It is characterized in that A first assembly limiting portion is provided in the first supporting space, and a first assembly limiting groove corresponding to the first assembly limiting portion is provided on the first supporting block, and when the first supporting block cooperates with the first supporting space, the first assembly limiting portion enters the first assembly limiting groove; The second support block is provided with a second assembly limiting portion, and a second assembly limiting groove corresponding to the second assembly limiting portion is arranged in the second support space, and when the outer sleeve is matched with the rubber member, the second assembly limiting portion enters the second assembly limiting groove.

4. An axial self-limiting suspension according to claim 3, It is characterized in that The inner core and the rubber member are both axially symmetrical columns, the first support blocks are symmetrically arranged on both sides of the inner core, and the movable limit blocks are symmetrically arranged on both sides of the mounting portion; the movable limit portion is above the first opening, the second support block is above the second opening, the second assembly limit portion is arranged on the end face of the second support block away from the second opening, and a contact block is arranged on the end face of the movable limit portion close to the first opening, and the contact block is in contact with the movable limit block.

5. An axial self-limiting suspension according to claim 4, It is characterized in that The outer sleeve and the rubber part are detachably matched; a matching groove is provided on the outer wall of the matching part, and a matching column is provided above the matching groove; a matching block is provided on the inner surface of the outer sleeve, and a lower matching space is provided at one end of the matching block close to the suspension bottom, and a lower matching opening is provided at one end of the matching block close to the suspension bottom; when the outer sleeve and the rubber part are matched, the matching column enters the lower matching space through the lower matching opening, and the end of the matching block close to the suspension bottom enters the matching groove and fits with the matching groove.

6. An axial self-limiting suspension according to claim 5, It is characterized in that The axial length of the connecting portion is smaller than the axial length of the matching portion and the axial length of the mounting portion, and the axial length of the outer sleeve corresponds to the axial length of the matching portion; during suspension assembly, the corresponding mounting positions respectively enter the top and bottom of the inner space and cooperate with the mounting portions at both ends of the connecting portion.

7. An axial self-limiting suspension according to claim 6, It is characterized in that An upper matching space is provided at one end of the matching block close to the top of the suspension, and an upper matching opening is provided at one end of the matching block close to the top of the suspension; when the top of the corresponding installation position entering the inner space matches with the assembly part, the upper matching space is entered through the upper matching opening; A buffer block is also provided on the inner surface of the matching portion, the buffer block is provided corresponding to the matching groove, an auxiliary assembly space is provided at a position of the buffer block corresponding to the matching column, and an auxiliary assembly opening is provided at one end of the auxiliary assembly space close to the suspension bottom; When the matching column enters the lower matching space, the auxiliary assembly space is in the lower matching space, and when the corresponding installation position enters the bottom of the inner space and matches with the assembly part, it enters the auxiliary assembly space through the auxiliary assembly opening; The bottoms of the outer sleeve and the matching portion are both provided with auxiliary assembly portions surrounding the two, and auxiliary assembly notches are provided on the auxiliary assembly portions.

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