A low frequency vibration isolator of double diaphragm spring type
By introducing anti-slip washers and a temperature sensor alarm system into the double diaphragm spring type low-frequency vibration isolator, the problems of loose connections and temperature monitoring are solved, achieving a more stable vibration isolation effect and timely temperature handling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI CHONGAN DISTRICT WANDA SHOCK ABSORPTION DEVICES FACTORY
- Filing Date
- 2025-07-08
- Publication Date
- 2026-05-29
AI Technical Summary
Existing dual-diaphragm spring type low-frequency vibration isolators are prone to loosening at the connection points and lack temperature monitoring and alarm functions, resulting in weakened vibration isolation effect and frequent maintenance.
An anti-slip washer structure and a temperature sensor alarm system were designed. The anti-slip washer increases connection stability, and the temperature sensor and control panel work together with the alarm to achieve temperature monitoring and alarm.
It improves the stability of the connection, extends the service life of the equipment, enhances the low-frequency vibration isolation performance, and promptly alerts maintenance personnel to handle abnormal temperatures.
Smart Images

Figure CN224301276U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vibration isolation technology, specifically a low-frequency vibration isolator with double diaphragm springs. Background Technology
[0002] Vibration is a common phenomenon in daily life. In the mechanical field, if the vibration level exceeds a certain range, it will not only cause noise from equipment and affect the surrounding environment, but also affect the working performance of the equipment, shorten its service life, cause related parts to fail, and in severe cases, even cause safety accidents, threatening life and property. To eliminate the impact of vibration from the mounting surface on the equipment, vibration isolators are usually installed between the equipment and the fixed surface. Therefore, the design of vibration isolators is increasingly valued by designers in equipment production and daily life.
[0003] The existing patent application number CN109854672A discloses a low-frequency vibration isolator with a double diaphragm spring. The various connection points of this vibration isolator do not have anti-slip washers, which makes it impossible to delay the loosening of the mounting bolts, thereby increasing the number of maintenance times and maintenance costs. Furthermore, it is not convenient to remind the staff to deal with the temperature inside the protective shell as soon as possible when it is outside the range. As a result, if the temperature inside the protective shell is too high or too low, the elastic performance of the diaphragm spring will decrease, which will weaken the overall vibration isolation effect of the vibration isolator. Therefore, this utility model provides a low-frequency vibration isolator with a double diaphragm spring. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides a dual-diaphragm spring type low-frequency vibration isolator, which solves the problems mentioned in the background section.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention provides the following technical solution: a double diaphragm spring type low-frequency vibration isolator, including a T-shaped mounting bracket, the bottom of the T-shaped mounting bracket having a mounting through hole and a threaded through hole, the inner top wall of the threaded through hole being threaded with a connecting bolt, the surface of the connecting bolt being threaded with a triangular tower, the surface of the triangular tower being fixedly mounted with a tower support, and the upper surface of the tower support having a threaded through hole.
[0008] Preferably, the upper surface of the triangular tower is provided with a telescopic hole, a threaded rod is inserted into the telescopic hole, a fixing nut, an anti-slip washer and a series connecting shaft are threadedly connected to the surface of the threaded rod, a diaphragm spring is snapped between the anti-slip washer and the series connecting shaft, and a connecting through hole is provided on the upper surface of the diaphragm spring.
[0009] Preferably, the internal thread of the threaded through hole two is connected to a connecting bolt two, the connecting bolt two passes through the connecting through hole one and is threaded to an anti-slip washer two and a fixing nut two, and an anti-slip washer three is engaged between the connecting bolt two and the tower support leg one.
[0010] Preferably, the upper surface of the series connecting shaft is provided with a threaded connecting hole 1, the threaded connecting hole 1 is internally threaded with a threaded rod 2, the surface of the threaded rod 2 is threaded with an anti-slip washer 4 and a fixing nut 3, a diaphragm spring 2 is snapped between the series connecting shaft and the anti-slip washer 4, the upper surface of the diaphragm spring 2 is provided with a connecting through hole 2, and a triangular tower 2 is sleeved on the surface of the threaded rod 2.
[0011] Preferably, a tower support leg 2 is fixedly installed on the surface of the triangular tower 2, and a threaded through hole 3 is opened on the upper surface of the tower support leg 2. A connecting bolt 3 is threadedly connected inside the threaded through hole 3. The connecting bolt 3 passes through the connecting through hole 2 and is threadedly connected to an anti-slip washer 5 and a fixing nut 4. An anti-slip washer 6 is snapped between the tower support leg 2 and the connecting bolt 3.
[0012] Preferably, the upper surface of the triangular tower 2 is provided with a threaded connection hole 2, and a connecting bolt 4 is threadedly connected inside the threaded connection hole 2. The surface of the connecting bolt 4 is threadedly connected to a T-shaped mounting bracket 2 through a threaded through hole 4. The upper surface of the T-shaped mounting bracket 2 is provided with a mounting through hole 2.
[0013] Preferably, threaded connection holes three are provided on both the left and right surfaces of the T-shaped mounting bracket one. A connecting bolt five is threaded into the inside of the threaded connection hole three. A left half of the protective shell is threaded into the surface of the connecting bolt five. A temperature sensor is fixedly installed on the inner side wall of the left half of the protective shell. A control panel is fixedly installed on the side surface of the left half of the protective shell.
[0014] Preferably, an alarm is fixedly installed on the surface of the left half of the protective shell, and a fixing bolt is threadedly connected to the left half of the protective shell through a threaded through hole five. A fixing nut five, an anti-slip washer seven, the right half of the protective shell, and an anti-slip washer eight are threadedly connected to the surface of the fixing bolt.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a low-frequency vibration isolator with a double diaphragm spring, which has the following advantages:
[0017] This double diaphragm spring type low-frequency vibration isolator, through the coordinated arrangement of T-shaped mounting bracket 1, series connecting shaft, diaphragm spring 1, diaphragm spring 2, and T-shaped mounting bracket 2, transmits vibration through T-shaped mounting bracket 2 (connected to the vibration source) to the connected triangular tower 2 and diaphragm spring 2. Utilizing the low stiffness characteristics and series connection characteristics of diaphragm spring 1, series connecting shaft, and diaphragm spring 2, the vibration is greatly attenuated upon reaching the surface of T-shaped mounting bracket 1, thus exhibiting excellent low-frequency vibration isolation performance. Through the coordinated arrangement of anti-slip washers 1, 2, 3, 4, 5, 6, 7, and 8, anti-slip washers are used... The anti-slip properties of anti-slip washers 1, 2, 3, 4, 5, 6, 7, and 8 are enhanced, thereby increasing the resistance to rotation of fixing nuts 1, 2, 3, 4, 5, and 6, significantly delaying loosening at each connection point. Through the coordinated setup of a temperature sensor, control panel, and alarm, the temperature sensor monitors the temperature inside the protective housing in real time and transmits the data to the control panel. The control panel then activates the alarm based on a pre-set temperature range, triggering a siren to alert personnel that the temperature inside the protective housing is outside the acceptable range and prompt action. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0020] Figure 3 This is a top view of the structure of the triangular tower frame 5 of this utility model;
[0021] Figure 4 This is a top view of the structure of the diaphragm spring-13 of this utility model.
[0022] In the diagram: 1. T-shaped mounting bracket; 2. Mounting through hole; 3. Threaded through hole; 4. Connecting bolt; 5. Triangular tower; 6. Tower support; 7. Threaded through hole 2; 8. Expansion hole; 9. Threaded rod; 10. Fixing nut; 11. Anti-slip washer; 12. Series connecting shaft; 13. Diaphragm spring; 14. Connecting through hole; 15. Connecting bolt 2; 16. Anti-slip washer 2; 17. Fixing nut 2; 18. Anti-slip washer 3; 19. Threaded connecting hole 1; 20. Threaded rod 2; 21. Anti-slip washer 4; 22. Fixing nut 3; 23. Diaphragm spring 2; 24. Threaded through hole 2; 25. Triangular tower. Frame 25, Tower support 26, Threaded through hole 3, Connecting bolt 3, Anti-slip washer 5, Fixing nut 4, Anti-slip washer 6, Threaded connection hole 2, Connecting bolt 4, Threaded through hole 4, T-type mounting bracket 2, Mounting through hole 2, Threaded connection hole 36, Threaded connection hole 3, Connecting bolt 5, Left half protective shell 39, Temperature sensor 40, Control panel 41, Alarm 42, Threaded through hole 5, Fixing bolt 44, Fixing nut 5, Anti-slip washer 7, Right half protective shell 47, Anti-slip washer 8, Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-4This utility model provides a technical solution: a double diaphragm spring type low-frequency vibration isolator, including a T-shaped mounting bracket 1. The bottom of the T-shaped mounting bracket 1 has a mounting through hole 2 and a threaded through hole 3. A connecting bolt 4 is threaded onto the inner top wall of the threaded through hole 3. A triangular tower 5 is threaded onto the surface of the connecting bolt 4. A tower support 6 is fixedly mounted on the surface of the triangular tower 5. A threaded through hole 7 is opened on the upper surface of the tower support 6. A telescopic hole 8 is opened on the upper surface of the triangular tower 5. A threaded rod 9 is inserted into the telescopic hole 8. A fixing nut 10, an anti-slip washer 11, and a series connecting shaft 12 are threaded onto the surface of the threaded rod 9. A diaphragm spring is engaged between the anti-slip washer 11 and the series connecting shaft 12. A diaphragm spring 13 has a connecting through hole 14 on its upper surface. A connecting bolt 15 is threaded into the threaded through hole 7. The connecting bolt 15 passes through the connecting through hole 14 and is threaded with an anti-slip washer 16 and a fixing nut 17. An anti-slip washer 18 is engaged between the connecting bolt 15 and the tower support leg 6. A threaded connecting hole 19 is provided on the upper surface of the series connecting shaft 12. A threaded rod 20 is threaded into the threaded connecting hole 19. An anti-slip washer 21 and a fixing nut 22 are threaded onto the surface of the threaded rod 20. A diaphragm spring 23 is engaged between the series connecting shaft 12 and the anti-slip washer 21. A connecting through hole 24 is provided on the upper surface of the diaphragm spring 23. The surface of the threaded rod 20 is fitted with a connecting through hole 24. There is a triangular tower 25. A tower support 26 is fixedly mounted on the surface of the triangular tower 25. A threaded through hole 3 27 is formed on the upper surface of the tower support 26. A connecting bolt 3 28 is threaded inside the threaded through hole 3 27. The connecting bolt 3 28 passes through the connecting through hole 2 24 and is threaded with an anti-slip washer 5 29 and a fixing nut 4 30. An anti-slip washer 6 31 is engaged between the tower support 26 and the connecting bolt 3 28. A threaded connecting hole 2 32 is formed on the upper surface of the triangular tower 25. A connecting bolt 4 33 is threaded inside the threaded connecting hole 2 32. A T-shaped mounting bracket 2 35 is threaded through the threaded through hole 4 34 on the surface of the connecting bolt 4 33. The T-shaped mounting bracket 1, a series connecting shaft 12, and a diaphragm spring 13 are connected to the T-shaped mounting bracket 1. The diaphragm spring 23 and T-mount bracket 25 are designed to work together to transmit vibrations through the T-mount bracket 235 (connected to the vibration source) to the connected triangular tower 25 and diaphragm spring 23. Utilizing the low stiffness and series connection characteristics of the diaphragm spring 13, the series connecting shaft 12, and the diaphragm spring 23, the vibrations are significantly attenuated upon reaching the surface of the T-mount bracket 11, resulting in excellent low-frequency vibration isolation performance. The upper surface of the T-mount bracket 235 has a through-hole 36, and both the left and right surfaces of the T-mount bracket 11 have threaded connection holes 37. Connecting bolts 38 are threaded into the internal threads of the threaded connection holes 37, and the surface of the connecting bolts 38 is threaded with a left half-protective shell 39.A temperature sensor 40 is fixedly installed on the inner wall of the left half of the protective shell 39. A control panel 41 is fixedly installed on the side surface of the left half of the protective shell 39. An alarm 42 is fixedly installed on the surface of the left half of the protective shell 39. A fixing bolt 44 is threadedly connected to the left half of the protective shell 39 through a threaded through hole 43. A fixing nut 45, an anti-slip washer 46, the right half of the protective shell 47, and an anti-slip washer 48 are threadedly connected to the surface of the fixing bolt 44.
[0025] In summary, this double diaphragm spring type low-frequency vibration isolator, through the coordinated arrangement of T-shaped mounting bracket 1, series connecting shaft 12, diaphragm spring 13, diaphragm spring 23, and T-shaped mounting bracket 25, transmits vibration through the T-shaped mounting bracket 25 connected to the vibration source to the connected triangular tower 25 and diaphragm spring 23. Utilizing the low stiffness characteristics and series elasticity of diaphragm spring 13, series connecting shaft 12, and diaphragm spring 23, the vibration is greatly attenuated when transmitted to the surface of T-shaped mounting bracket 11, thus exhibiting excellent low-frequency vibration isolation performance. Through the coordinated arrangement of anti-slip washers 11, 26, 38, 41, 59, 31, 46, and 48, the anti-slip washers 11, 29, 31, 46, and 48 are used. The anti-slip washers 16, 18, 21, 29, 31, 46, and 48 enhance the anti-slip properties of the fixing nut 10, connecting bolt 15, 17, 22, 28, 30, 38, and 44, thereby significantly delaying loosening at each connection point. Through the coordinated setup of the temperature sensor 40, control panel 41, and alarm 42, the temperature sensor 40 monitors the temperature inside the protective housing in real time and transmits the data to the control panel 41. The control panel 41 then activates the alarm 42 according to the preset temperature range, triggering a siren to alert staff that the temperature inside the protective housing is outside the acceptable range and prompt action.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A low-frequency vibration isolator of the double diaphragm spring type, comprising a T-shaped mounting bracket (1), characterized in that: The bottom of the T-shaped mounting bracket (1) is provided with a mounting through hole (2) and a threaded through hole (3). The inner top wall of the threaded through hole (3) is threaded with a connecting bolt (4). The surface of the connecting bolt (4) is threaded with a triangular tower (5). The surface of the triangular tower (5) is fixedly installed with a tower support (6). The upper surface of the tower support (6) is provided with a threaded through hole (7).
2. The low-frequency vibration isolator of the double diaphragm spring type according to claim 1, characterized in that: The upper surface of the triangular tower (5) is provided with a telescopic hole (8), and a threaded rod (9) is inserted into the telescopic hole (8). The surface of the threaded rod (9) is threaded with a fixing nut (10), an anti-slip washer (11) and a series connecting shaft (12). A diaphragm spring (13) is snapped between the anti-slip washer (11) and the series connecting shaft (12). The upper surface of the diaphragm spring (13) is provided with a connecting through hole (14).
3. A low-frequency vibration isolator of the double diaphragm spring type according to claim 1, characterized in that: The threaded through hole 2 (7) is internally threaded with connecting bolt 2 (15). Connecting bolt 2 (15) passes through connecting through hole 1 (14) and is threaded with anti-slip washer 2 (16) and fixing nut 2 (17). Anti-slip washer 3 (18) is engaged between connecting bolt 2 (15) and tower support 1 (6).
4. A low-frequency vibration isolator of the double diaphragm spring type according to claim 2, characterized in that: The upper surface of the series connecting shaft (12) is provided with a threaded connection hole 1 (19). The threaded connection hole 1 (19) is internally threaded with a threaded rod 2 (20). The surface of the threaded rod 2 (20) is threaded with an anti-slip washer 4 (21) and a fixing nut 3 (22). A diaphragm spring 2 (23) is snapped between the series connecting shaft (12) and the anti-slip washer 4 (21). The upper surface of the diaphragm spring 2 (23) is provided with a connecting through hole 2 (24). The surface of the threaded rod 2 (20) is sleeved with a triangular tower 2 (25).
5. A low-frequency vibration isolator of the double diaphragm spring type according to claim 4, characterized in that: The surface of the triangular tower 2 (25) is fixedly installed with tower support 2 (26). The upper surface of the tower support 2 (26) is provided with threaded through hole 3 (27). The threaded through hole 3 (27) is internally threaded with connecting bolt 3 (28). The connecting bolt 3 (28) passes through the connecting through hole 2 (24) and is threaded with anti-slip washer 5 (29) and fixing nut 4 (30). Anti-slip washer 6 (31) is snapped between tower support 2 (26) and connecting bolt 3 (28).
6. A low-frequency vibration isolator of the double diaphragm spring type according to claim 4, characterized in that: The upper surface of the triangular tower 2 (25) is provided with a threaded connection hole 2 (32), and the threaded connection hole 2 (32) is internally threaded with a connecting bolt 4 (33). The surface of the connecting bolt 4 (33) is threadedly connected with a T-shaped mounting bracket 2 (35) through a threaded through hole 4 (34). The upper surface of the T-shaped mounting bracket 2 (35) is provided with a mounting through hole 2 (36).
7. A low-frequency vibration isolator of the double diaphragm spring type according to claim 1, characterized in that: The T-shaped mounting bracket (1) has threaded connection holes (37) on both the left and right surfaces. The threaded connection holes (37) are threaded with connecting bolts (38). The connecting bolts (38) are threaded with a left half protective shell (39). A temperature sensor (40) is fixedly installed on the inner side wall of the left half protective shell (39). A control panel (41) is fixedly installed on the side surface of the left half protective shell (39).
8. A low-frequency vibration isolator of the double diaphragm spring type according to claim 7, characterized in that: An alarm (42) is fixedly installed on the surface of the left half protective shell (39). The left half protective shell (39) is threadedly connected to a fixing bolt (44) through a threaded through hole five (43). The surface of the fixing bolt (44) is threadedly connected to a fixing nut five (45), an anti-slip washer seven (46), a right half protective shell (47), and an anti-slip washer eight (48).