Spherical hinge type vibration isolator

Abstract

The utility model relates to the technical field of vibration damping devices, in particular to a spherical hinge type vibration isolator, which comprises a shell, a spherical hinge type vibration isolator, a second containing cavity and a spherical hinge type vibration isolator, the first vibration reduction part comprises a vibration reduction spring arranged in the first containing cavity in the Z-axis direction and a supporting piece arranged on the upper portion of the vibration reduction spring in a sleeving mode; the second vibration reduction part comprises a first vibration reduction piece and a second vibration reduction piece; a third vibration damping part for providing vibration damping in the X-axis, Y-axis and Z-axis directions; and the spherical hinge part is used for installing a photographing system. According to the vibration isolator, under the synergistic effect of the multiple vibration reduction structures, the vibration absorbers have the good vibration reduction effect in the X-axis direction, the Y-axis direction and the Z-axis direction, so that a photographing system installed on the upper portion of the vibration isolator can effectively reduce vibration interference in all the directions in the complex vibration environment, and the stability and definition of imaging of the photographing system are guaranteed. And meanwhile, the spherical hinge part capable of freely rotating is matched, so that the photographing system can stably rotate at various angles according to photographing requirements.

Description

Technical Field

[0001] This utility model relates to the field of vibration reduction device technology, and in particular to a ball-joint type vibration isolator. Background Technology

[0002] In many fields such as aerospace, automotive, and precision instrument manufacturing, equipment inevitably generates vibrations during operation. To ensure normal equipment operation and improve product quality, vibration isolation technology is widely used. Reducing vibration transmission through vibration isolators has become an important way to ensure equipment performance.

[0003] Existing vibration isolators often use stainless steel wire mesh blocks and steel wire coil springs as elastic elements. Their working principle is to utilize the dry friction damping generated by the slippage between the wires of the wire mesh block under load, which absorbs and dissipates a large amount of system energy, thereby achieving the purpose of vibration isolation and buffering; while the springs serve as supporting elements, providing a certain supporting force for the system.

[0004] Although existing vibration isolators can achieve vibration isolation to a certain extent, they still have many shortcomings. On the one hand, their stiffness is often not adjustable, making it difficult to flexibly change according to actual needs and accurately adapt to different working conditions and vibration environments. On the other hand, in complex vibration environments, existing vibration isolators have a single vibration reduction direction, and their vibration isolation effect in the three axes (X, Y, and Z axes) is limited. This makes it difficult to meet the stringent requirements of high-precision systems such as photographic systems for stable imaging, resulting in the camera still being subject to significant vibration interference during equipment operation, affecting the clarity and stability of the image. Utility Model Content

[0005] To address at least one of the aforementioned technical problems, this utility model proposes a ball-joint vibration isolator to solve the problems of existing vibration isolators having a single vibration reduction direction, inconvenient angle adjustment for photographic equipment, and poor imaging effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A ball-joint type vibration isolator, characterized in that it comprises:

[0008] A housing for fixing to a device, the housing having a first receiving cavity and a first mounting hole at the center of one end away from the device;

[0009] The first damping part is used to provide damping in the Z-axis direction. The central axis of the housing is set as the Z-axis. The first damping part includes a damping spring disposed in the first accommodating cavity along the Z-axis direction and a support member sleeved on the upper part of the damping spring. The support member extends out of the housing through the first mounting hole under the support of the damping spring.

[0010] The second vibration damping part is used to provide vibration damping for the support member in the X-axis and Y-axis directions. The X-axis and Y-axis are perpendicular to each other and both intersect the Z-axis perpendicularly. The second vibration damping part includes a first vibration damping member and a second vibration damping member, which are coaxially spaced from the Z-axis and disposed in the first accommodating cavity and in contact with the inner wall of the housing. The first vibration damping member is sleeved on the outside of the support member and has a first radial installation gap with the support member. The second vibration damping member is disposed at the lower part of the support member and has an axial installation gap with the support member and a second radial installation gap with the vibration damping spring.

[0011] The third vibration damping part is used to provide vibration damping in the X-axis, Y-axis and Z-axis directions. The third vibration damping part is coaxially fixedly arranged on the upper part of the first vibration damping part with the Z-axis.

[0012] A ball joint is used to mount the photographic system. The ball joint is coaxially fixed to the third vibration damping part with the Z-axis. Under the synergistic action of the first vibration damping part, the second vibration damping part, and the third vibration damping part, the photographic system achieves vibration damping effects in the X-axis, Y-axis, and Z-axis directions.

[0013] Preferably, the support member includes:

[0014] The first vertical section has a second receiving cavity at the end away from the ball joint, which opens toward the bottom of the housing. The second receiving cavity is used to house the damping spring.

[0015] The first horizontal segment is disposed on the outer periphery of the end of the first vertical segment away from the ball joint. The first horizontal segment is located between the first damping member and the second damping member. When the damping spring is in a free state, the first horizontal segment has an installation gap with the inner wall of the housing, the first damping member and the second damping member.

[0016] Preferably, the first damping member includes a first wire mesh pad disposed on the upper part of the first accommodating cavity and a second wire mesh pad disposed on the lower part of the first wire mesh pad, wherein the inner diameters of the first wire mesh pad and the second wire mesh pad are the same and smaller than the inner diameter of the first mounting hole;

[0017] The second damping element is a third wire mesh pad, which is disposed in the lower part of the first accommodating cavity and has a second radial installation gap with the damping spring.

[0018] Preferably, the ball-joint vibration isolator further includes a mounting bushing, which is fixedly disposed on the inner wall of the housing and located between the second wire mesh pad and the third wire mesh pad. When the damping spring is in a free state, the mounting bushing does not contact the first horizontal section. A third accommodating cavity is formed between the second wire mesh pad, the third wire mesh pad, and the mounting bushing, and the first horizontal section is located within the third accommodating cavity.

[0019] Preferably, the third vibration damping part includes:

[0020] The connector includes a second vertical section having a stepped hole along the Z-axis direction and a second horizontal section fixedly disposed on the outer periphery of the second vertical section and parallel to the plane containing the X-axis and Y-axis. The second horizontal section divides the second vertical section into an upper mounting section and a lower connecting section.

[0021] The disc spring assembly is sleeved on the outer periphery of the mounting section;

[0022] The mounting part is pressed onto the upper part of the disc spring assembly. The mounting part has a second mounting hole. The ball joint is fixed to the connector through the second mounting hole. The inner diameter of the second mounting hole is smaller than the outer circumference of the disc spring assembly and larger than the outer diameter of the mounting section.

[0023] Preferably, the disc spring assembly includes a plurality of stacked disc springs, which are stacked in a superimposed, paired, or combined manner.

[0024] Preferably, the ball joint includes:

[0025] A ball head bolt includes a spherical head, a connecting rod connected to the lower part of the spherical head, an external thread on the lower end of the connecting rod away from the spherical head, a limit block between the upper part of the external thread and the spherical head, the limit block being located in the large hole section of the stepped hole, and an internal thread adapted to the external thread of the connecting rod being provided in the small hole section of the stepped hole of the connecting section.

[0026] A ball joint for mounting a photographic system, the ball joint having a spherical insertion cavity, the spherical head being movably inserted into the ball joint through the insertion cavity, so that the ball joint rotates relative to the center of the spherical head.

[0027] Preferably, the ball joint seat includes an upper ball joint seat fixed to the photographic system and a lower ball joint seat that covers the upper ball joint seat, and the upper ball joint seat and the lower ball joint seat are movably fixed together by fasteners.

[0028] Preferably, the first vertical section has a first internal threaded hole along the Z-axis direction, and the connecting section is provided with a first external thread adapted to the first internal threaded hole;

[0029] The first vertical section is provided with a second internal threaded hole along the X-axis or Y-axis direction, and the outer periphery of the connecting section is provided with a groove corresponding to the second internal threaded hole, and the connecting section and the first vertical section are fixed by fasteners.

[0030] Preferably, the housing includes a base fixed to the device and a cylindrical hollow cover that covers the base. The hollow cover has a fixing part parallel to the plane containing the X-axis and the Y-axis. The fixing part and the base are provided with corresponding fixing holes and are fixed by riveting with steel bushing flanges. The center of the inner side wall of the base is provided with a countersunk hole for placing one end of the vibration damping spring.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. This utility model, by setting up a first damping part, a second damping part, and a third damping part, achieves good damping effect in the X, Y, and Z axes through the synergistic action of multiple damping structures. This allows the photographic system mounted on the vibration isolator to effectively reduce vibration interference from all directions even in complex vibration environments, ensuring the stability and clarity of the photographic image. Simultaneously, the freely rotatable ball joint allows the photographic system to rotate smoothly at various angles according to shooting requirements.

[0033] 2. By setting a first wire mesh pad, a second wire mesh pad, and a third wire mesh pad, when the vibration isolator is under load or vibrating, the first vertical section of the support member may come into contact with the first and second wire mesh pads, and the first horizontal section may come into contact with the opposite surfaces of the second and third wire mesh pads. By utilizing the elasticity of the above-mentioned wire mesh pads, the vibration of the support member is buffered, ensuring that the support member can maintain relative stability in the vibration environment.

[0034] 3. By incorporating a disc spring assembly, this invention can dampen vibrations originating from the X, Y, and Z axes of the ball joint when it is under load and / or vibrating, effectively improving the overall vibration damping effect of the vibration isolator. Furthermore, the stiffness, load-bearing capacity, and preload of the vibration isolator can be adjusted by modifying the number and stacking method of the disc springs.

[0035] 4. This utility model, by incorporating a ball-head bolt inserted into a ball joint seat, utilizes the tight fit between the spherical head and the spherical insertion cavity. During rotation, the contact area is relatively large and uniform, effectively dispersing the force generated by rotation and reducing local stress concentration. Simultaneously, this insertion method limits the potential wobbling or offset of the ball joint seat during rotation, ensuring the stability of the photographic system during rotation. Furthermore, the ball joint seat rotates freely around the center of the spherical head, giving the connected photographic system flexible rotational freedom to meet the angle adjustment needs of different shooting requirements. Attached Figure Description

[0036] Figure 1 A three-dimensional diagram of a ball-joint type vibration isolator;

[0037] Figure 2 This is a front view of a ball-joint type vibration isolator.

[0038] Figure 3 A top view of a ball-joint vibration isolator;

[0039] Figure 4 for Figure 2 Sectional view along axis AA;

[0040] Figure 5 An exploded three-dimensional view of a ball-joint vibration isolator;

[0041] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0042] Figure 7 An exploded front view of a ball-joint vibration isolator.

[0043] Figure 8 for Figure 7 BB-direction sectional view.

[0044] In the figure: 10, shell; 101, base; 1011, countersunk hole; 102, hollow cover; 1021, fixing part; 10211, fixing hole; 1022, first mounting hole;

[0045] 20. First vibration damping section; 201. Vibration damping spring; 202. Support member; 2021. First vertical section; 20211. Second internal threaded hole; 20212. Fastener; 2022. First horizontal section;

[0046] 30. Second vibration damping part; 301. First vibration damping component; 3011. First wire mesh pad; 3012. Second wire mesh pad; 302. Second vibration damping component;

[0047] 40. Third vibration damping section; 401. Connector; 4011. Second vertical section; 40111. Mounting section; 40112. Connecting section; 4012. Second horizontal section; 402. Disc spring assembly; 403. Mounting part; 4031. Second mounting hole;

[0048] 50. Ball joint; 501. Ball head bolt; 5011. Spherical head; 5012. Connecting rod; 5013. Limiting block; 502. Ball joint seat; 5021. Upper ball joint seat; 5022. Lower ball joint seat; 5023. Insertion cavity;

[0049] 60. Install the bushing. Detailed Implementation

[0050] To enable those skilled in the art to better understand the technical solutions in this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this utility model, and not all of the embodiments in this utility model.

[0051] Please refer to Figures 1-8 As shown, a ball-joint type vibration isolator is characterized by comprising:

[0052] The housing 10 is used to fix it to the equipment. The housing 10 has a first receiving cavity and a first mounting hole 1022 is provided at the center of one end away from the equipment.

[0053] The first damping part 20 is used to provide damping in the Z-axis direction. The central axis of the housing 10 is set as the Z-axis. The first damping part 20 includes a damping spring 201 arranged in the first accommodating cavity along the Z-axis direction and a support member 202 sleeved on the upper part of the damping spring 201. Under the support of the damping spring 201, the support member 202 extends out of the housing 10 through the first mounting hole 1022.

[0054] The second damping part 30 is used to provide damping for the support member 202 in the X-axis and Y-axis directions. The X-axis and Y-axis are perpendicular to each other and both intersect the Z-axis perpendicularly. The second damping part 30 includes a first damping member 301 and a second damping member 302, which are coaxially spaced from the Z-axis and are in contact with the inner wall of the housing 10. The first damping member 301 is sleeved on the outside of the support member 202 and has a first radial installation gap with the support member 202. The second damping member 302 is disposed at the lower part of the support member 202 and has an axial installation gap with the support member 202 and a second radial installation gap with the damping spring 201.

[0055] The third vibration damping part 40 is used to provide vibration damping in the X-axis, Y-axis and Z-axis directions. The third vibration damping part 40 is coaxially fixed on the upper part of the first vibration damping part 20 with the Z-axis.

[0056] The ball joint 50 is used to mount the photographic system. The ball joint 50 is coaxially fixed on the third vibration damping part 40 with the Z-axis. Under the synergistic action of the first vibration damping part 20, the second vibration damping part 30 and the third vibration damping part 40, the photographic system achieves vibration damping effects in the X-axis, Y-axis and Z-axis directions.

[0057] In this embodiment, by setting up a first damping part 20, a second damping part 30, and a third damping part 40, the vibration damper has a good damping effect in the X-axis, Y-axis, and Z-axis directions under the synergistic effect of multiple damping structures. This allows the photographic system installed on the upper part of the vibration isolator to effectively reduce vibration interference from all directions even in complex vibration environments, ensuring the stability and clarity of the photographic system's imaging. At the same time, in conjunction with the freely rotatable ball joint 50, the photographic system can rotate smoothly at various angles according to shooting requirements.

[0058] It should be noted that in this embodiment, the housing 10 includes a base 101 fixed to the device and a cylindrical hollow cover 102 that covers the base 101. The hollow cover 102 has a fixing part 1021 parallel to the plane containing the X-axis and Y-axis. The fixing part 1021 and the base 101 are provided with corresponding fixing holes 10211 and are fixed by steel bushing flange riveting.

[0059] Please refer to Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, in this embodiment, the support member 202 includes:

[0060] The first vertical section 2021 has a second receiving cavity at the end away from the ball joint 50, which opens toward the bottom of the housing 10. The second receiving cavity is used to house the damping spring 201.

[0061] The first horizontal segment 2022 is disposed on the outer periphery of the end of the first vertical segment 2021 away from the ball joint 50. The first horizontal segment 2022 is located between the first damping member 301 and the second damping member 302. When the damping spring 201 is in a free state, the first horizontal segment 2022 has an installation gap with the inner wall of the housing 10, the first damping member 301 and the second damping member 302.

[0062] It should be noted that, in order to facilitate the installation of the damping spring 201 and the ball joint 50, in this embodiment, the second accommodating cavity is configured to communicate with the first threaded hole described below, wherein the inner diameter of the second accommodating cavity is larger than the inner diameter of the first threaded hole. Thus, the second accommodating cavity and the first threaded hole form a stepped hole shape, so that the upper part of the damping spring 201 can abut against the stepped part of the stepped hole.

[0063] like Figure 3As shown, the lower part of the damping spring 201 abuts against the countersunk hole 1011 in the center of the inner side wall of the base 101, so that the lower part of the damping spring 201 is installed stably and will not be displaced, thereby ensuring that the entire damping spring 201 can maintain relative stability when deformation occurs.

[0064] In this embodiment, the first horizontal segment 2022 is located at the bottom of the first vertical segment 2021. Specifically, the first vertical segment 2021 is bent outward horizontally to form the first horizontal segment 2022. The first vertical segment 2021 is cylindrical, and the first horizontal segment 2022 is annular. It can be understood that, in order to improve the overall structural integrity of the support member 202, the support member 202 in this embodiment is a one-piece molded part.

[0065] Please refer to Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, in this embodiment, the first damping member 301 includes a first wire mesh pad 3011 disposed on the upper part of the first accommodating cavity and a second wire mesh pad 3012 disposed on the lower part of the first wire mesh pad 3011. The inner diameters of the first wire mesh pad 3011 and the second wire mesh pad 3012 are the same and smaller than the inner diameter of the first mounting hole 1022.

[0066] The second damping element 302 is a third wire mesh pad, which is disposed in the lower part of the first accommodating cavity and has a second radial installation gap with the damping spring 201.

[0067] It should be noted that in this example, the first wire mesh pad 3011, the second wire mesh pad 3012, and the third wire mesh pad are all formed by metal wire drawing, weaving, and stamping. The metal material can be stainless steel. Therefore, by utilizing the elasticity of the first wire mesh pad 3011, the second wire mesh pad 3012, and the third wire mesh pad, when they are pressed into the first receiving cavity, they can rely on their own elasticity to apply pressure to the inner wall of the housing 10, thus maintaining a relatively stable position to a certain extent.

[0068] To ensure the stability of the installation of the first wire mesh pad 3011, the second wire mesh pad 3012, and the third wire mesh pad, the shape of each wire mesh pad in contact with the inner wall of the housing 10 can be designed according to the shape of the contact area. For example, in this embodiment, the transition part from the side wall of the housing 10 to the upper wall is rounded, and the corresponding position of the first wire mesh pad 3011 should also be rounded, thereby ensuring that the first wire mesh pad 3011 can have a good fit with the inner wall of the housing 10, and thus ensuring the stability of the installation of the first wire mesh pad 3011.

[0069] It is understandable that by setting the first wire mesh pad 3011, the second wire mesh pad 3012, and the third wire mesh pad, when the vibration isolator is under load or vibrating, the first vertical section 2021 of the support member 202 may come into contact with the first wire mesh pad 3011 and the second wire mesh pad 3012, and the first horizontal section 2022 may come into contact with the opposite surfaces of the second wire mesh pad 3012 and the third wire mesh pad. By utilizing the elasticity of the above-mentioned wire mesh pads, the support member 202 is subjected to vibration buffering, ensuring that the support member 202 can maintain relative stability in the vibration environment.

[0070] Please refer to Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, in order to provide displacement deformation caused by vibration and load for the first horizontal segment 2022, the ball joint vibration isolator in this embodiment also includes a mounting bushing 60. The mounting bushing 60 is fixedly disposed on the inner wall of the housing 10 and located between the second wire mesh pad 3012 and the third wire mesh pad. When the damping spring 201 is in a free state, the mounting bushing 60 does not contact the first horizontal segment 2022. A third accommodating cavity is formed between the second wire mesh pad 3012, the third wire mesh pad and the mounting bushing 60, and the first horizontal segment 2022 is located in the third accommodating cavity.

[0071] It should be noted that in this embodiment, the mounting bushing 60 is made of stainless steel and is fixed to the inner wall of the housing 10 to ensure the stability of the relative distance between the second wire mesh pad 3012 and the third wire mesh pad, thereby ensuring that the first horizontal segment 2022 has a stable displacement deformation space.

[0072] Meanwhile, there is an installation gap between the mounting bushing 60 and the first horizontal section 2022, so that when the first horizontal section 2022 undergoes displacement deformation, it does not come into contact with the mounting bushing 60 and there is no rigid collision between them, thereby improving the vibration reduction capability of the support 202.

[0073] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, in this embodiment, the third vibration damping unit 40 includes:

[0074] The connector 401 includes a second vertical section 4011 having a stepped hole along the Z-axis direction and a second horizontal section 4012 fixedly disposed on the outer periphery of the second vertical section 4011 and parallel to the plane containing the X-axis and Y-axis. The second horizontal section 4012 divides the second vertical section 4011 into an upper mounting section 40111 and a lower connecting section 40112.

[0075] Disc spring assembly 402 is sleeved on the outer periphery of mounting section 40111;

[0076] Mounting part 403 is pressed onto the upper part of disc spring assembly 402. Mounting part 403 has a second mounting hole 4031. Ball joint part 50 is fixed to connector 401 through second mounting hole 4031. The inner diameter of second mounting hole 4031 is smaller than the outer circumference of disc spring assembly 402 and larger than the outer diameter of mounting section 40111.

[0077] In this embodiment, by setting up the disc spring assembly 402, when the ball joint 50 is under load and / or vibrates, it can dampen the vibration of the ball joint 50 from the X-axis, Y-axis, and Z-axis directions, effectively improving the overall vibration damping effect of the vibration damper. At the same time, the stiffness, load-bearing capacity, and preload of the vibration isolator can be adjusted by adjusting the number of disc springs and their stacking method.

[0078] It should be noted that, in this embodiment, the disc spring assembly 402 includes a plurality of disc springs stacked on top of each other, wherein the disc springs are stacked in a superimposed, paired, or combined manner.

[0079] Specifically, a stacked combination involves placing multiple disc springs sequentially in the same direction. This combination increases the axial stiffness of the springs, generating a large restoring force with relatively small deformation. When the vibration isolator is subjected to vibration and impact, the stacked disc springs can quickly provide a large counterforce, effectively suppressing vibration transmission. This method is suitable for scenarios requiring resistance to large axial forces and minimal axial deformation, ensuring that the equipment maintains a stable axial position under vibration.

[0080] Paired Combination: The disc springs are stacked in pairs in opposite directions. This combination allows the disc spring assembly 402 to provide more stable elastic characteristics when subjected to large deformations. Compared to the stacked combination, the paired combination of disc springs generates relatively less force under the same deformation, but has a larger deformation range. In situations where large vibration displacements may occur, the paired combination of disc springs can better adapt, ensuring vibration isolation while preventing disc spring failure due to excessive deformation, and effectively coping with the large vibration amplitude generated during equipment operation.

[0081] Composite Combination: This method combines overlapping and mating techniques, arranging disc springs in different sequences. This combination approach can accommodate various performance requirements, allowing for flexible adjustment of the stiffness, load-bearing capacity, and deformation characteristics of the disc spring assembly 402 according to specific vibration isolation needs. For example, in the vibration isolation of aerospace equipment under complex vibration environments, it is necessary to resist large impact forces while adapting to vibration displacements in different directions. Composite combination disc springs can leverage their advantages, meeting the vibration isolation requirements of aerospace equipment under various operating conditions through a rational design of the disc spring combination sequence and quantity.

[0082] Therefore, the specific stacking method of the disc springs can be selected according to the actual application scenario to achieve the ideal vibration reduction effect. In this embodiment, the disc springs are stacked in a pairing combination.

[0083] Please refer to the reference. Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 In this embodiment, the ball joint 50 includes:

[0084] The ball head bolt 501 includes a ball head 5011, a connecting rod 5012 connected to the lower part of the ball head 5011, an external thread on the lower end of the connecting rod 5012 away from the ball head 5011, a limit block 5013 between the upper part of the external thread and the ball head 5011, the limit block 5013 being located in the large hole section of the stepped hole, and an internal thread adapted to the external thread of the connecting rod 5012 being provided in the small hole section of the stepped hole of the connecting section 40112;

[0085] The ball joint 502 is used to mount the photographic system. The ball joint 502 has a spherical insertion cavity 5023. The spherical head 5011 is movably inserted into the ball joint 502 through the insertion cavity 5023, so that the ball joint 502 can rotate relative to the center of the spherical head 5011.

[0086] In this embodiment, the ball joint seat 502 includes an upper ball joint seat 5021502 fixed to the camera system and a lower ball joint seat 5022502 covering the upper ball joint seat 5021502. The upper ball joint seat 5021502 and the lower ball joint seat 5022502 are movably fixed together by fasteners 20212.

[0087] In this embodiment, by using a ball-head bolt 501 inserted into the ball joint seat 502, and utilizing the tight fit between the spherical head 5011 and the spherical insertion cavity 5023, the contact area is relatively large and uniform during rotation, effectively dispersing the force generated by rotation and reducing local stress concentration. Simultaneously, this insertion method limits the potential wobbling or offset of the ball joint seat 502 during rotation, ensuring the stability of the photographic system during rotation. Furthermore, the ball joint seat 502 can rotate freely around the center of the spherical head 5011, giving the connected photographic system flexible rotational freedom to meet the angle adjustment needs of different shooting requirements.

[0088] It is understandable that, in order to improve the vibration damping of the ball joint 50 itself, a rubber ball cap adapted to the spherical head 5011 is provided in the insertion cavity 5023 in this embodiment.

[0089] The rubber cap structure gives the ball joint 50 the following advantages:

[0090] In the axial direction, the rubber ball cap and the ball joint seat 502 are interference-fitted, which effectively reduces the transmission of vibration. When the equipment or structure is affected by external vibration, the rubber ball cap can absorb and disperse the vibration energy, reduce the vibration interference of the assembled parts, and play a role in protecting the assembled parts and improving stability.

[0091] In the radial direction, the clearance fit between the rubber ball cap and the ball joint seat 502 reduces frictional wear between the ball head bolt 501 and the mounting seat during movement. This helps extend the service life of the ball head bolt 501 and the mounting seat, ensuring the reliability and durability of the entire structure.

[0092] Please refer to the figure. In order to facilitate the installation of the support 202 and the connector 401, in this embodiment, the first vertical section 2021 has a first internal threaded hole along the Z-axis direction, and the connector 40112 is provided with a first external thread that is adapted to the first internal threaded hole.

[0093] Considering the complexity of vibration conditions in the application scenarios of the vibration damper, in order to avoid relative rotation between the threaded connection between the support member 202 and the connector 401, in this embodiment, the first vertical section 2021 is provided with a second internal threaded hole 20211 along the X-axis or Y-axis direction, and the outer periphery of the connecting section 40112 is provided with a groove corresponding to the second internal threaded hole 20211, and the connecting section 40112 and the first vertical section 2021 are fixed by fasteners 20212.

[0094] Specifically, after the connector 401 is fixed to the support 202 via a threaded connection, a fastener 20212, such as a set screw, is screwed into the corresponding groove through the second internal threaded hole 20211 on the first vertical section 2021 of the support 202, thereby locking the support 202 and the connector 401 and effectively preventing relative rotation between them. It is understood that when the fastener 20212 is tightened, pressure is applied to the outer periphery of the connector 401. Sufficient pressure or the pressure from multiple fasteners 20212 can effectively prevent relative rotation between the connector 401 and the support 202. Therefore, in some cases, the groove structure can be omitted for ease of installation.

[0095] The ball joint vibration isolator provided by this utility model achieves vibration reduction in the Z-axis direction through the combination of vibration damping spring 201 and disc spring assembly 402; and achieves vibration reduction in the X and Y-axis directions through the combination of disc spring and wire mesh pad. Thus, the ball joint vibration isolator of this utility model has vibration reduction effects in three axes: X-axis, Y-axis and Z-axis. This ensures that the photographic system installed on the vibration isolator can effectively reduce vibration interference from all directions in complex vibration environments, and ensure the stability and clarity of the imaging of the photographic system.

[0096] In addition, the freely rotatable ball joint 50 allows the connected photographic system to have flexible rotational freedom, which can meet the needs of angle adjustment under different shooting requirements.

[0097] The above description is a specific implementation of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A ball joint vibration isolator characterized by, The application relates to a camera stabilizer, which comprises the following parts: a shell (10) for fixing a device, wherein the shell (10) has a first accommodating cavity and a first mounting hole (1022) arranged at the center of one end of the shell (10) and away from the device; a first damping part (20) for providing damping in the Z-axis direction, wherein the central axis of the shell (10) is the Z-axis, the first damping part (20) comprises a damping spring (201) arranged in the Z-axis direction in the first accommodating cavity and a support (202) sleeved on the upper part of the damping spring (201), the support (202) partially extends out of the shell (10) through the first mounting hole (1022) under the support of the damping spring (201); a second damping part (30) for providing damping of the support (202) in the X-axis and Y-axis directions, wherein the X-axis and the Y-axis are perpendicular to each other and both are perpendicular to the Z-axis, the second damping part (30) comprises a first damping member (301) and a second damping member (302) which are coaxially arranged in the first accommodating cavity and are in contact with the inner wall of the shell (10), the first damping member (301) is sleeved outside the support (202) and has a first radial mounting gap with the support (202), the second damping member (302) is arranged at the lower part of the support (202) and has an axial mounting gap with the support (202) and a second radial mounting gap with the damping spring (201); a third damping part (40) for providing damping in the X-axis, Y-axis and Z-axis directions, wherein the third damping part (40) is fixedly arranged on the upper part of the first damping part (20) coaxially with the Z-axis; a spherical hinge part (50) for mounting a camera system, wherein the spherical hinge part (50) is fixedly arranged on the third damping part (40) coaxially with the Z-axis, and the camera system realizes damping effects in the X-axis, Y-axis and Z-axis directions under the cooperation of the first damping part (20), the second damping part (30) and the third damping part (40).

2. The ball joint isolator of claim 1, wherein The support (202) comprises: a first vertical section (2021) which is provided with a second accommodating cavity opening towards the bottom of the shell (10) at one end away from the spherical hinge part (50), and the second accommodating cavity is used for sleeving the damping spring (201); a first horizontal section (2022) arranged at the outer periphery of the first vertical section (2021) away from the spherical hinge part (50), wherein the first horizontal section (2022) is located between the first damping member (301) and the second damping member (302), and when the damping spring (201) is in a free state, the first horizontal section (2022) has mounting gaps with the inner wall of the shell (10), the first damping member (301) and the second damping member (302).

3. The ball joint isolator of claim 2, wherein, The first damping member (301) comprises a first wire mesh pad (3011) arranged at the upper portion of the first accommodating cavity and a second wire mesh pad (3012) arranged at the lower portion of the first wire mesh pad (3011), the inner diameters of the first wire mesh pad (3011) and the second wire mesh pad (3012) are the same and smaller than the inner diameter of the first mounting hole (1022); The second damping member (302) is a third wire mesh pad arranged at the lower portion of the first accommodating cavity and has a second radial mounting gap with the damping spring (201).

4. The ball joint isolator of claim 3, wherein The spherical hinge vibration isolator further comprises a mounting bushing (60) fixedly arranged on the inner wall of the housing (10) and located between the second wire mesh pad (3012) and the third wire mesh pad, the mounting bushing (60) is not in contact with the first horizontal section (2022) when the damping spring (201) is in a free state; the second wire mesh pad (3012), the third wire mesh pad and the mounting bushing (60) form a third accommodating cavity, and the first horizontal section (2022) is located in the third accommodating cavity.

5. The ball joint isolator of claim 4, wherein, The third damping portion (40) comprises: a connecting member (401) comprising a second vertical section (4011) having a stepped hole along the Z-axis direction, a second horizontal section (4012) fixedly arranged on the outer periphery of the second vertical section (4011) and parallel to the plane where the X-axis and the Y-axis are located, the second horizontal section (4012) divides the second vertical section (4011) into an upper mounting section (40111) and a lower connecting section (40112); a disc spring assembly (402) sleeved on the outer periphery of the mounting section (40111); a mounting portion (403) press-fitted on the upper portion of the disc spring assembly (402), the mounting portion (403) has a second mounting hole (4031), the spherical hinge portion (50) is fixed with the connecting member (401) through the second mounting hole (4031), the inner diameter of the second mounting hole (4031) is smaller than the outer diameter of the disc spring assembly (402) and larger than the outer diameter of the mounting section (40111).

6. The ball joint isolator of claim 5, wherein, The disc spring assembly (402) comprises a plurality of butterfly springs stacked in a superimposed or apposed or combined manner.

7. The ball joint isolator of claim 6, wherein, The spherical hinge portion (50) comprises: a ball head bolt (501) comprising a spherical head (5011), a connecting rod (5012) connected to the lower portion of the spherical head (5011), an outer thread provided on the distal end of the connecting rod (5012) away from the spherical head (5011), a limiting block (5013) arranged between the upper portion of the outer thread and the spherical head (5011), the limiting block (5013) being located in the large hole section of the stepped hole, and an inner thread provided on the small hole section of the stepped hole of the connecting section (40112) and matched with the outer thread of the connecting rod (5012). The ball hinge seat (502) is used for installing a photographic system, and has a spherical insertion cavity (5023). The spherical head (5011) is movably inserted with the ball hinge seat (502) through the insertion cavity (5023) to enable the ball hinge seat (502) to relatively rotate around the ball center of the spherical head (5011).

8. The ball joint isolator of claim 7, wherein, The ball hinge seat (502) comprises an upper ball hinge seat (5021) (502) fixed with the photographic system and a lower ball hinge seat (5022) (502) covering the upper ball hinge seat (5021) (502), and the upper ball hinge seat (5021) (502) and the lower ball hinge seat (5022) (502) are movably fixed through a fastener (20212).

9. The ball joint isolator of claim 8, wherein, The first vertical section (2021) has a first inner threaded hole in the direction of the Z axis, and the connecting section (40112) is provided with a first outer thread matched with the first inner threaded hole. The first vertical section (2021) is provided with a second inner threaded hole (20211) in the direction of the X axis or the Y axis, the outer periphery of the connecting section (40112) is provided with a groove corresponding to the second inner threaded hole (20211), and the connecting section (40112) and the first vertical section (2021) are fixed through a fastener (20212).

10. Ball joint vibration isolator according to any of claims 1-9, characterized in that The shell (10) comprises a base (101) fixed with the device and a cylindrical hollow cover body (102) covering the base (101), the hollow cover body (102) has a fixed part (1021) parallel to the plane where the X axis and the Y axis are located, the fixed part (1021) and the base (101) are provided with corresponding fixed holes (10211) and are fixed through steel bushing flanging riveting, and the inner side wall center of the base (101) is provided with a counterbore (1011) for placing one end of the damping spring (201).

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