Auxiliary frame bushing for vehicle

Abstract

The utility model discloses an auxiliary frame bushing for a vehicle, which relates to the technical field of auxiliary frame bushings and comprises a bushing outer core, a bushing inner core and an insertion plate, a telescopic top supporting part is arranged in a pressure groove, and a gas filling part for continuously filling gas into the inner side of the pressure groove is arranged at the top of the insertion plate; through the arrangement of the telescopic supporting top part and the gas filling part, the gas filling part is utilized to continuously inject gas into the pressed groove, so that the gas pressure between the extrusion block and the inner wall of the top end of the pressed groove is gradually increased, and the extrusion block slides downwards on the inner side of the pressed groove under the gas pressure and continuously contacts with the inner wall of the bottom end of the lining outer core; therefore, upward acting force is formed on the plug board to a certain extent, the plug board extends outwards for a certain distance from the inner side of the bushing outer core, the operation space for manual plugging and unplugging of the plug board can be enlarged, the contact area between the plug board and the inner wall of the bushing outer core and the contact area between the plug board and the outer wall of the bushing inner core can be reduced, and the service life of the plug board is prolonged. Therefore, friction obstruction during actual plugging of the plugboard is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of subframe bushing, specifically relates to a vehicle subframe bushing. BACKGROUND

[0002] With the rapid development of domestic automobile industry, the whole vehicle development technology matures gradually, and people's comfort requirement for vehicle driving is gradually improved. Therefore, the application of bushings on the whole vehicle is more and more widely. The subframe bushing is arranged between the subframe and the vehicle body, and when the two components move relatively, the impact energy is absorbed and the vibration is reduced. The use of subframe bushing can greatly improve the vibration isolation performance of the whole vehicle, and plays a crucial role in the comfort performance of the whole vehicle.

[0003] The prior art patent No. CN219866010U of a new type of subframe bushing for automobile, the patent sets up the clamping groove and the clamping block, can limit the freedom degree of the bushing inner core in the vertical direction in the bushing assembly process, sets up two plugboards, limits the freedom degree of the bushing inner core in the horizontal direction, enhances the stability of the coaxial installation of the bushing inner core and the bushing outer core, is favorable to make the hollow stiffness and the axial stiffness ratio of the bushing consistent;

[0004] The above-mentioned patent sets up two plugboards, limits the freedom degree of the bushing inner core in the horizontal direction, enhances the stability of the coaxial installation of the bushing inner core and the bushing outer core, so the arrangement leads to that when the bushing inner core is disassembled in the later period, the plugboard needs to be disassembled first, and the limitation of the bushing inner core in the bushing outer core is removed in advance, so that the disassembly space of the bushing inner core is finally provided, since the plugboard is located between the bushing inner core and the bushing outer core, the two surfaces of the plugboard are respectively close to the outer wall of the bushing inner core and the inner wall of the bushing outer core, and the bushing product is mostly rubber material, has greater friction coefficient, so that the operable gap is small and the friction resistance is large when the plugboard is actually pulled out, and then the disassembly difficulty of the plugboard is increased, and the practicability is reduced. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, a vehicle subframe bushing is provided, which solves the problem of inconvenient disassembly of the plugboard between the bushing inner core and the bushing outer core in the prior art.

[0006] In order to achieve the above object, the utility model adopts the technical scheme that a kind of vehicle auxiliary frame bushing, including bushing outer core, bushing inner core being arranged in the middle part of bushing outer core inside and two respectively symmetrically arranged in the bushing inner core two sides insert plate, the bottom of the bushing outer core is provided with cover plate, the cover plate and the bushing outer core are all left and right symmetrical and are provided with communicating groove, hook is arranged in the communicating groove, one end of the hook is hook-shaped and is in abutment with the lower surface of the cover plate, the other end of the hook is in contact with the insert plate, one side of the insert plate inner wall is vertically provided with pressure groove, telescopic support top is built-in in the pressure groove, the top of the insert plate is provided with for continuously filling gas inside pressure groove gas injection part;

[0007] The telescopic support top includes an extrusion block vertically slidingly arranged in the pressure groove, and a connecting spring fixed between the extrusion block and the inner wall of the top end of the pressure groove.

[0008] Preferably, the gas injection part includes a gas injection port fixed to the top end of the insert plate and connected to the inside of the pressure groove, and a sealing cover threadedly connected to the outer wall of the gas injection port.

[0009] Preferably, the magnetic slide includes a T-shaped slide block slidingly arranged in the T-shaped slide groove and fixedly connected to one end of the hook, and a magnetic block fixedly embedded on one side surface of the T-shaped slide block.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] (1) By setting the telescopic support top and the gas injection part, the gas injection part continuously injects gas into the pressure groove, gradually increasing the gas pressure between the extrusion block and the inner wall of the top end of the pressure groove, so that the extrusion block slides down inside the pressure groove under the gas pressure and continuously contacts the inner wall of the bottom end of the bushing outer core, thereby forming an upward force on the insert plate to some extent, so that the insert plate extends outward from the inside of the bushing outer core by a certain distance, which not only expands the operation space for manually pulling out the insert plate, but also reduces the contact area between the insert plate and the inner wall of the bushing outer core and the outer wall of the bushing inner core, thereby reducing the friction resistance during actual pulling out of the insert plate.

[0012] (2) through the setting of the magnetic slide, when the extrusion block is pressed to slide down in the pressure groove, the magnetic strip can slide down synchronously with the extrusion block and correspond to the magnetic block on the T-shaped slide block in advance, so that the T-shaped slide block slides to one side in the T-shaped slide groove under the repulsion of the magnetic force, so that the hook-shaped end of the hook moves to the position corresponding to the opening of the communication groove, and then when the plugboard is extruded and slides up, the hook can enter the inner side of the outer core of the bushing through the communication groove, so as to avoid the hook-shaped end of the hook to hinder the movement of the plugboard. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is an internal structure schematic view of the utility model;

[0015] Figure 3 It is the utility model Figure 2 A structure schematic view in the middle;

[0016] Figure 4 It is the utility model Figure 2 B structure schematic view in the middle.

[0017] Reference signs in the drawing are:

[0018] 1, bushing outer core, 2, bushing inner core, 3, plugboard, 4, cover plate, 5, hook, 6, communication groove, 7, T-shaped slide block, 8, reset spring, 9, pressure groove, 10, extrusion block, 11, magnetic strip, 12, connecting spring, 13, gas injection port, 14, sealing cover. DETAILED DESCRIPTION

[0019] The following description is used to disclose the utility model so that those skilled in the art can realize the utility model. The preferred embodiments in the following description are only as examples, and those skilled in the art can think of other obvious modifications.

[0020] Referring to Figures 1-4 As shown in the figure, a kind of vehicle auxiliary frame bushing, including bushing outer core 1, bushing inner core 2 being set to the middle part of the inner side of bushing outer core 1 and two respectively symmetrically set to the both sides of bushing inner core 2 plugboard 3, the bottom of bushing outer core 1 is provided with cover plate 4, and the communication groove 6 is symmetrically set in cover plate 4 and bushing outer core 1, hook 5 is arranged in communication groove 6, one end of hook 5 is hook-shaped and abuts with the lower surface of cover plate 4, the other end of hook 5 is in contact with plugboard 3;

[0021] According to the existing patent announcement No. CN219866, a new type of automobile subframe bushing, from the file content, the bushing outer core 1, the bushing inner core 2, the insert plate 3, the cover plate 4 and the hook 5 are disclosed in the prior art and are well known to the public. The structure and use principle of the case are only briefly described, and the detailed content can be referred to the above-mentioned file.

[0022] The assembly principle is that when in use, the bushing inner core 2 is pre-assembled into the middle part of the inside of the bushing outer core 1, and is in abutment with the bottom surface of the bushing outer core 1. Then the cover plate 4 is placed on the lower surface of the bushing outer core 1, and the communication grooves 6 on the cover plate 4 correspond to the communication grooves 6 on the bushing outer core 1. Then the insert plates 3 are inserted from both sides of the bushing inner core 2, and are in close contact between the outer wall of the bushing inner core 2 and the inner wall of the bushing outer core 1. The two insert plates 3 cooperate with each other to limit the bushing inner core 2 inside the bushing outer core 1, and enhance the stability of the coaxial installation of the bushing inner core 2 and the bushing outer core 1.

[0023] During the insertion process of the insert plate 3, the hook 5 is inserted into the communication groove 6 in synchronization, and the hook-shaped end thereof is in advance in contact with the inner wall of the opening of the communication groove 6 on the bushing outer core 1, and is deformed to one side under extrusion, so as to facilitate the smooth insertion of the hook 5 into the inside of the communication groove 6. When the insert plate 3 is completely inserted into the bushing outer core 1, the hook-shaped end of the hook 5 penetrates out of the communication groove 6, and is in contact with the lower surface of the cover plate 4 after plastic reset, so as to effectively form a fixing effect on the insert plate 3.

[0024] However, such arrangement results in that when the bushing inner core 2 is disassembled later, the insert plate 3 needs to be disassembled first, and the limitation of the bushing inner core 2 in the bushing outer core 1 is released in advance, so as to finally provide a working space for the disassembly of the bushing inner core 2. Since the insert plate 3 is located between the bushing inner core 2 and the bushing outer core 1, and the two surfaces thereof are in close contact with the outer wall of the bushing inner core 2 and the inner wall of the bushing outer core 1 respectively, and the bushing product is mostly made of rubber material, which has a large friction coefficient. Therefore, the operable gap is small and the friction resistance is large when the insert plate 3 is actually pulled out, which further seriously increases the disassembly difficulty of the insert plate 3 and reduces the practicability.

[0025] Therefore, referring to Figures 2-4 It is worth noting that one side of the inner wall of the insert plate 3 is vertically provided with a pressure receiving groove 9, and a telescopic support top is built-in the pressure receiving groove 9. The top of the insert plate 3 is provided with a gas filling part for continuously filling gas into the inside of the pressure receiving groove 9.

[0026] The telescopic support top includes an extrusion block 10 vertically slidingly arranged in the pressure receiving groove 9, and a connecting spring 12 fixed between the extrusion block 10 and the inner wall of the top end of the pressure receiving groove 9.

[0027] By setting the telescopic support top and the gas injection part, the gas injection part continuously injects gas into the pressure receiving groove 9, and the gas pressure between the extrusion block 10 and the inner wall of the top end of the pressure receiving groove 9 is gradually increased, so that the extrusion block 10 slides downward in the pressure receiving groove 9 under the gas pressure and continuously contacts the inner wall of the bottom end of the outer core 1 of the bushing, and then an upward force is formed on the plug 3 to a certain extent, so that the plug 3 extends outward from the inner side of the outer core 1 of the bushing by a distance, thereby expanding the operation space of the artificial plug pulling operation of the plug 3, and reducing the contact area between the plug 3 and the inner wall of the outer core 1 of the bushing and the outer wall of the inner core 2 of the bushing, so that the friction resistance during the actual plug pulling operation of the plug 3 is reduced.

[0028] Further, referring to Figure 3 It is worth noting that the gas injection part includes a gas injection port 13 fixed to the top end of the plug 3 and connected to the inside of the pressure receiving groove 9, and the outer wall of the gas injection port 13 is threadedly connected with a sealing cover 14.

[0029] The gas injection port 13 is connected with the gas injection pump by a hose, so that the gas injection pump can continuously inject gas into the inside of the pressure receiving groove 9, and the gas pressure between the extrusion block 10 and the inner wall of the top end of the pressure receiving groove 9 is increased.

[0030] When the gas injection port 13 is idle, the sealing cover 14 is threadedly screwed on the outer wall of the gas injection port 13, so that the gas injection port 13 can be effectively protected, and the inside of the gas injection port 13 is prevented from being blocked by dust and impurities when idle, thereby affecting the subsequent gas injection effect.

[0031] Further, referring to Figure 4 It is worth noting that the bottom end of the plug 3 is provided with a T-shaped sliding groove, and a magnetic sliding part cooperating with the hook 5 is arranged in the T-shaped sliding groove.

[0032] The magnetic sliding part includes a T-shaped sliding block 7 slidably arranged in the T-shaped sliding groove and fixedly connected with one end of the hook 5, and a magnetic block fixedly embedded on one side surface of the T-shaped sliding block 7, and a magnetic strip 11 corresponding to the magnetic block is fixedly embedded on the side surface of the extrusion block 10, and a return spring 8 is fixed between the other surface of the T-shaped sliding block 7 and the inner wall of the T-shaped sliding groove.

[0033] By arranging the magnetic sliding part, when the extrusion block 10 is pressed and slides downward in the pressure receiving groove 9, the magnetic strip 11 can slide downward together with the extrusion block 10 and correspond to the magnetic block on the T-shaped sliding block 7 in advance, so that the T-shaped sliding block 7 slides to one side in the T-shaped sliding groove under the repulsion of the magnetic force, so that the hook-shaped end of the hook 5 moves to a position corresponding to the opening of the communication groove 6, and then when the plug 3 is extruded and slides upward, the hook 5 can enter the inner side of the outer core 1 of the bushing through the communication groove 6, so that the hook-shaped end of the hook 5 does not hinder the movement of the plug 3.

[0034] Moreover, by using the T-shaped slider 7 and the reset spring 8, when the to-be-inserted plate 3 is inserted into the inner side of the outer core 1 of the bushing, the hook-shaped end of the hook 5 contacts the inner wall at the opening of the communication groove 6, the hook 5 is extruded to carry the T-shaped slider 7 to slide to one side and compress the reset spring 8 to deform, so that the hook 5 is smoothly inserted into the inner side of the communication groove 6, when the to-be-inserted plate 3 is completely inserted into the inner side of the outer core 1 of the bushing, the hook-shaped end of the hook 5 penetrates out of the communication groove 6, the hook 5 is reset under the elastic force of the reset spring 8, so that the hook-shaped end of the hook 5 contacts the lower surface of the cover plate 4, so that the fixing effect of the to-be-inserted plate 3 is realized.

[0035] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A vehicle subframe bushing, comprising a bushing outer core (1), a bushing inner core (2) disposed in the middle of the inner side of the bushing outer core (1), and two insert plates (3) respectively symmetrically disposed on both sides of the bushing inner core (2), wherein a cover plate (4) is provided at the bottom of the bushing outer core (1), and both the cover plate (4) and the bushing outer core (1) are provided with symmetrically arranged connecting grooves (6), wherein a hook (5) is provided in the connecting groove (6), one end of the hook (5) is hook-shaped and abuts against the lower surface of the cover plate (4), and the other end of the hook (5) contacts the insert plate (3), characterized in that: One side of the inner wall of the plugboard (3) is vertically provided with a pressure groove (9) with a telescopic supporting top, and the top of the plugboard (3) is provided with a gas filling part for continuously filling gas into the pressure groove (9). The telescopic supporting top comprises an extrusion block (10) vertically slidingly arranged in the pressure groove (9), and a connecting spring (12) is fixed between the extrusion block (10) and the inner wall of the top end of the pressure groove (9).

2. The subframe bushing of claim 1, wherein The gas filling part comprises a gas injection port (13) fixed to the top end of the plugboard (3) and communicating with the inside of the pressure groove (9), the outer wall of the gas injection port (13) is threadedly connected with a sealing cover (14), the bottom end of the plugboard (3) is provided with a T-shaped sliding groove, and the T-shaped sliding groove is provided with a magnetic sliding part cooperating with the hook (5).

3. The subframe bushing of claim 2, wherein, The magnetic sliding part comprises a T-shaped sliding block (7) slidingly arranged in the T-shaped sliding groove and fixedly connected with one end of the hook (5), and a magnetic block fixedly embedded on one side surface of the T-shaped sliding block (7), a magnetic strip (11) corresponding to the magnetic block is fixedly embedded on the side surface of the extrusion block (10), and a reset spring (8) is fixed between the other surface of the T-shaped sliding block (7) and the inner wall of the T-shaped sliding groove.

Images