Vibration absorber structure

Abstract

The utility model discloses a vibration absorber structure, which relates to the technical field of vibration absorbers, and comprises a mounting inner core, a balancing weight arranged outside the mounting inner core, a mounting hole formed in the mounting inner core, a fixing bolt arranged in the mounting hole, a thread of the fixing bolt penetrating through the mounting inner core, and a pressure shielding mechanism, through the arrangement of the pressure shielding mechanism, after the balancing weight and the installation inner core are integrally installed on the vehicle body through the fixing bolt, the pressing plate in the pressure shielding mechanism is turned over, so that the pressing plate is attached to the surface of the installation inner core to shield the installation hole, then the fixing bolt is sealed and hidden, the influence of the external environment on the fixing bolt is reduced, and the fixing bolt is prevented from being rusted; and in the process of overturning the pressing plate, the pressing block can synchronously rotate into the inner side of the mounting hole and abut against the fixing bolt, so that certain extrusion force can be applied to the fixing bolt, the stability of the fixing bolt in use is enhanced to a certain extent, and the risk that the fixing bolt is loosened due to long-term vibration is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration absorbers, in particular to a vibration absorber structure. Background Art

[0002] As consumption levels rise, people's requirements for automobile quality are also increasing, especially NVH performance. Consumers who usually buy family cars or luxury cars hope that the vehicle cabin can be as quiet as possible, with less vibration and smooth operation during driving. Moreover, a relatively quiet driving environment objectively makes it easier for the driver to calmly respond to various emergency road conditions, improving driving quality and safety, because due to vibration excitation from the road surface or powertrain, there will always be resonance in certain components.

[0003] The prior art patent announcement number CN218229140U is a subframe vibration absorber, mounting structure and vehicle. The above patent has the advantages of simple structure by embedding a mounting inner core in the counterweight block and forming the two into one by vulcanization. It is directly connected to the subframe through the mounting inner core, which has the advantage of simple assembly, and solves the problem of complex structure and assembly of the existing vibration absorber assembly. By setting the cross section of the mounting inner core in the vertical direction into a T-shaped structure and providing a stepped hole on the counterweight block that matches the shape of the mounting inner core, the risk of the counterweight block falling off due to failure, breakage or debonding of the vulcanization connection between the two can be effectively prevented.

[0004] The above patent uses bolts to assemble the counterweight block and the mounting inner core as a whole on the vehicle body. Although the bolt fixing method can achieve the fixing effect of the counterweight block and the mounting inner core on the vehicle body as a whole to a certain extent, from a practical point of view, the bolt fixing structure is very easy to loosen due to long-term vibration during the operation of the vehicle, resulting in the risk of the counterweight block and the mounting inner core as a whole falling off. Utility Model Content

[0005] In order to solve the above technical problems, a vibration absorber structure is provided, which solves the problem in the prior art that the bolt fixing structure is very easy to loosen due to long-term vibration during vehicle operation, resulting in the risk of the counterweight block and the mounting inner core as a whole falling off.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a vibration absorber structure, including a mounting inner core, a counterweight block arranged outside the mounting inner core, and a mounting hole opened on the mounting inner core, a fixing bolt is arranged in the mounting hole, and the thread of the fixing bolt passes through the mounting inner core, and also includes a shielding mechanism;

[0007] The shielding mechanism includes a pressure plate laterally attached to the top surface of the mounting inner core, one end of the pressure plate is provided with an elastic flip component, both sides of the other end of the pressure plate are provided with fastening components, and a pressure block is provided on the inner side of the mounting hole, one end of the pressure block is fixed to the bottom surface of the pressure plate, and the other end of the pressure block is abutted against the top of the fixing bolt.

[0008] Preferably, the elastic flip component includes two fixing plates symmetrically fixed to the top surface of the counterweight block and a rotating sleeve rotatably arranged between the two fixing plates, and the rotating sleeve is fixedly connected to the side edge of the pressure plate.

[0009] Preferably, a fixing column is laterally arranged on the inner side of the rotating sleeve, and both ends of the fixing column are respectively fixedly connected to the two fixing plates, and a torsion spring is sleeved on the rod body of the fixing column, one end of the torsion spring is fixedly connected to the inner wall of the rotating sleeve, and the other end of the torsion spring is fixedly connected to the rod body of the fixing column.

[0010] Preferably, the fastening component includes an extrusion block vertically fixed on the side wall of the pressure plate and a pressure groove opened at one end of the extrusion block away from the pressure plate, and an internal threaded seat is also vertically fixed on the top surface of the counterweight block, and an external threaded rod is threadedly connected to the inner side of the internal threaded seat, and one end of the external threaded rod is inserted into the pressure groove and fixed with a pressure ball.

[0011] Preferably, the longitudinal section of the pressure groove is in the shape of a right-angled trapezoid, and the pressure ball abuts against the oblique inner wall of the pressure groove.

[0012] Compared with the prior art, the advantages of the utility model are: through the setting of the shielding and pressure-shielding mechanism, after the counterweight block and the mounting inner core are installed on the vehicle body as a whole by using the fixing bolts, the pressure plate in the shielding and pressure-shielding mechanism is flipped over so that the pressure plate fits against the surface of the mounting inner core to shield the mounting hole, thereby sealing and hiding the fixing bolts, reducing the influence of the external environment on the fixing bolts, and avoiding rusting of the fixing bolts. In the process of flipping the pressure plate, the pressure block can be synchronously rotated into the inner side of the mounting hole and pressed against the fixing bolt, so that a certain extrusion force can be applied to the fixing bolt, which enhances the stability of the fixing bolt during use to a certain extent and reduces the risk of the fixing bolt loosening due to long-term vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 Schematic diagram of the structure at A in the middle;

[0015] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 4 For this utility model Figure 3 Schematic diagram of the structure at point B in the middle.

[0017] The numbers in the figure are:

[0018] 1. Counterweight; 2. Install inner core; 3. Install hole; 4. Fixing bolt; 5. Pressure plate; 6. Fixing plate; 7. Fixing column; 8. Rotating sleeve; 9. Torsion spring; 10. Pressure block; 11. Extrusion block; 12. Internal thread seat; 13. External thread rod; 14. Pressure ball; 15. Pressure groove. DETAILED DESCRIPTION

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0020] Reference Figure 1-4 As shown, a vibration absorber structure includes a mounting inner core 2, a counterweight block 1 arranged outside the mounting inner core 2, and a mounting hole 3 opened on the mounting inner core 2, a fixing bolt 4 is arranged in the mounting hole 3, and the thread of the fixing bolt 4 penetrates the mounting inner core 2;

[0021] When in use, the mounting inner core 2 and the counterweight 1 can be integrally mounted on the vehicle body using the fixing bolts 4, thereby ensuring the firmness of the mounting inner core 2 and the counterweight 1 when in use on the vehicle body.

[0022] However, in practice, the fixing structure of the fixing bolt 4 is very likely to become loose due to long-term vibration during the operation of the vehicle, resulting in the risk of the counterweight block 1 and the mounting inner core 2 falling off as a whole;

[0023] In view of this, refer to Figure 3 As shown, it is worth noting that it also includes a shielding and pressing mechanism;

[0024] The shielding and pressing mechanism includes a pressing plate 5 which is laterally attached to the top surface of the mounting inner core 2, one end of the pressing plate 5 is provided with an elastic flip component, and both sides of the other end of the pressing plate 5 are provided with fastening components, and a pressing block 10 is provided in the inner side of the mounting hole 3, one end of the pressing block 10 is fixed to the bottom surface of the pressing plate 5, and the other end of the pressing block 10 is against the top of the fixing bolt 4;

[0025] By setting up the shielding and pressing mechanism, after the counterweight block 1 and the mounting inner core 2 are integrally installed on the vehicle body by using the fixing bolts 4, the pressure plate 5 in the shielding and pressing mechanism is flipped over so that the pressure plate 5 fits the surface of the mounting inner core 2 to shield the mounting hole 3, thereby sealing and hiding the fixing bolt 4, reducing the influence of the external environment on the fixing bolt 4, and avoiding rust of the fixing bolt 4. In the process of flipping the pressure plate 5, the pressure block 10 can be synchronously rotated into the inner side of the mounting hole 3 and pressed against the fixing bolt 4, so that a certain extrusion force can be applied to the fixing bolt 4, which enhances the stability of the fixing bolt 4 during use to a certain extent and reduces the risk of the fixing bolt 4 loosening due to long-term vibration.

[0026] Further, refer to Figure 3 and Figure 4 As shown, it is worth noting that the elastic flip component includes two fixed plates 6 symmetrically fixed to the top surface of the counterweight 1 and a rotating sleeve 8 rotatably arranged between the two fixed plates 6, the rotating sleeve 8 is fixedly connected to the side of the pressure plate 5, and a fixed column 7 is horizontally arranged on the inner side of the rotating sleeve 8, and the two ends of the fixed column 7 are respectively fixedly connected to the two fixed plates 6, and a torsion spring 9 is sleeved on the rod body of the fixed column 7, one end of the torsion spring 9 is fixedly connected to the inner wall of the rotating sleeve 8, and the other end of the torsion spring 9 is fixedly connected to the rod body of the fixed column 7;

[0027] When the pressure plate 5 is flipped to fit the surface of the inner core 2, the rotating sleeve 8 can synchronously twist the torsion spring 9 on the rod of the fixed column 7 to deform. In this way, only the flipping effect on the pressure plate 5 needs to be released, and the rotating sleeve 8 can carry the pressure plate 5 to quickly reverse and reset under the elastic force of the torsion spring 9, which is convenient for secondary use.

[0028] Further, refer to 1 and Figure 2 As shown, it is worth noting that the fastening component includes an extrusion block 11 vertically fixed on the side wall of the pressure plate 5 and a pressure groove 15 opened at the end of the extrusion block 11 away from the pressure plate 5. An internal thread seat 12 is also vertically fixed on the top surface of the counterweight 1. An external thread rod 13 is threadedly connected to the inner side of the internal thread seat 12. One end of the external thread rod 13 penetrates into the pressure groove 15 and is fixed with a pressure ball 14.

[0029] The longitudinal section of the pressure groove 15 is in the shape of a right-angled trapezoid, and the pressure ball 14 abuts against the oblique inner wall of the pressure groove 15;

[0030] By setting the fastening components, when the pressure plate 5 is flipped to fit the surface of the installation inner core 2, the knob external threaded rod 13 is turned to make the external threaded rod 13 pass into the pressure groove 15 under the threaded structure until the pressure ball 14 is against the oblique inner wall of the pressure groove 15. In this way, the extrusion block 11 and the pressure plate 5 can be locked as a whole, and a downward force can be applied to the pressure plate 5 and the extrusion block 11 as a whole, thereby improving the fit of the pressure plate 5 on the installation inner core 2.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A vibration absorber structure, comprising a mounting inner core (2), a counterweight (1) arranged outside the mounting inner core (2), and a mounting hole (3) opened on the mounting inner core (2), wherein a fixing bolt (4) is arranged in the mounting hole (3), and the thread of the fixing bolt (4) passes through the mounting inner core (2), characterized in that: Also includes a shielding and pressing mechanism; The shielding mechanism comprises a pressure plate (5) which is laterally attached to the top surface of the mounting inner core (2), one end of the pressure plate (5) is provided with an elastic flip component, and both sides of the other end of the pressure plate (5) are provided with fastening components, and a pressure block (10) is provided on the inner side of the mounting hole (3), one end of the pressure block (10) is fixed to the bottom surface of the pressure plate (5), and the other end of the pressure block (10) is against the top of the fixing bolt (4).

2. A vibration absorber structure according to claim 1, characterized in that: The elastic flip component comprises two fixing plates (6) symmetrically fixed to the top surface of the counterweight (1) and a rotating sleeve (8) rotatably arranged between the two fixing plates (6), and the rotating sleeve (8) is fixedly connected to the side edge of the pressure plate (5).

3. A vibration absorber structure according to claim 2, characterized in that: A fixing column (7) is transversely arranged on the inner side of the rotating sleeve (8), and the two ends of the fixing column (7) are respectively fixedly connected to the two fixing plates (6), and a torsion spring (9) is sleeved on the rod body of the fixing column (7), one end of the torsion spring (9) is fixedly connected to the inner wall of the rotating sleeve (8), and the other end of the torsion spring (9) is fixedly connected to the rod body of the fixing column (7).

4. A vibration absorber structure according to claim 1, characterized in that: The fastening component comprises an extrusion block (11) vertically fixed on the side wall of the pressure plate (5) and a pressure groove (15) opened at one end of the extrusion block (11) away from the pressure plate (5); an internal thread seat (12) is also vertically fixed on the top surface of the counterweight block (1); an external thread rod (13) is threadedly connected to the inner side of the internal thread seat (12); one end of the external thread rod (13) penetrates into the pressure groove (15) and is fixed with a pressure ball (14).

5. A vibration absorber structure according to claim 4, characterized in that: The longitudinal section of the pressure-bearing groove (15) is in the shape of a right-angled trapezoid, and the pressure ball (14) abuts against the oblique inner wall of the pressure-bearing groove (15).

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