Air bag type adjustable shockproof base

Abstract

The utility model discloses an air bag type adjustable shockproof base which comprises an upper supporting plate and a lower supporting plate which correspond to each other up and down and are horizontally arranged, a rubber sleeve is arranged between the outer side edge of the upper supporting plate and the outer side edge of the lower supporting plate, the upper supporting plate, the lower supporting plate and the rubber sleeve form a hollow air bag, and a spherical hinge is arranged in the center of the top of the upper supporting plate. The spherical hinge is connected with a supporting rod, a rotary knob is coaxially and fixedly arranged on the supporting rod, and an external thread connected with a screw hole in the bottom of an instrument is arranged on the outer circle of the supporting rod and above the rotary knob. According to the utility model, the design is novel, the structure is simple, the parts are assembled in a split manner, the mounting and dismounting are convenient, the damping and shockproof effects are good, the height is convenient to adjust, the stability is better, the levelness of an instrument is ensured, and the application range is wider.

Description

Technical Field

[0001] This utility model belongs to the technical field of measurement and scientific experimental instruments, specifically relating to an airbag-type adjustable shockproof base. Background Technology

[0002] Many precision measuring instruments are sensitive to vibration; ground or platform vibrations can cause them to malfunction or reduce their measurement accuracy. For example, optical interferometry is widely used in precision measurement, achieving nanometer-level accuracy for small-scale measurements and micrometer-level accuracy for large-scale measurements. However, optical interferometers are extremely sensitive to vibration; even minute vibrations of the light source or mirror assembly can cause severe shaking of the interference pattern, leading to inaccurate measurements. Therefore, avoiding instrument vibration is a key challenge for these instruments. For large measuring instruments, due to their large mass, minor vibrations from the ground platform have almost no impact. Besides this, other technologies exist to eliminate vibration interference, such as automated vibration monitoring and feedback adjustments, which can effectively prevent interference caused by interference, but these are costly. For small measuring instruments, effectively avoiding vibration at a low cost is a pressing technical problem that needs to be solved. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an airbag-type adjustable shockproof base that is simple in structure, easy to operate, and has a good shock absorption effect.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: an airbag-type adjustable shockproof base, including an upper support plate and a lower support plate that are corresponding to each other and are horizontally arranged. A rubber sleeve is provided between the outer edges of the upper support plate and the outer edges of the lower support plate. The upper support plate, the lower support plate and the rubber sleeve constitute a hollow airbag. A spherical hinge is provided at the top center of the upper support plate. A support rod is connected to the spherical hinge. A knob is fixedly provided on the support rod in the same direction. The outer circle of the support rod is provided with an external thread above the knob that connects to the screw hole at the bottom of the instrument.

[0005] The spherical hinge includes a hinge support on an upper support plate and an upper cover plate on the hinge support. The upper support plate, hinge support, and upper cover plate are connected as a whole by several bolts. A spherical groove is formed between the top surface of the hinge support and the bottom surface of the upper cover plate. The lower half of the spherical groove is located inside the hinge support, and the upper half of the spherical groove is located inside the upper cover plate. A sphere is assembled inside the spherical groove. The diameter of the sphere is equal to the diameter of the spherical groove. The center of the sphere is located on the upper end plane of the hinge support. A guide hole is formed in the upper cover plate, which is open from top to bottom and communicates with the spherical groove at its lower end. The lower end of the support rod passes through the guide hole and is fixedly connected to the upper end of the sphere.

[0006] The support rod consists of an upper section and a lower section. The diameter of the upper section is smaller than that of the lower section. An annular step is formed between the lower end of the upper section and the upper end of the lower section. A mounting hole for fitting into the upper section is opened in the center of the knob. The lower end of the knob contacts the annular step. Two or more keyways are opened axially in the inner circle of the mounting hole of the knob. The keyways are arranged in a circumferential array along the center line of the support rod. A flat key is integrally fitted into the keyway on the outer circle of the upper section. The outer diameter of the lower section is equal to the diameter of the guide hole.

[0007] The airbag is equipped with an inflation nozzle.

[0008] A layer of anti-slip rubber pad is bonded to the bottom surface of the lower support plate.

[0009] By adopting the above technical solution, compared with the prior art, this utility model has the following technical effects:

[0010] (1) Both the upper and lower support plates are circular. The upper and lower ends of the rubber sleeve are fixed and sealed to the outer circles of the upper and lower support plates, respectively. The upper and lower support plates can also be integrally formed with the rubber sleeve. Metal plates or rigid plastic plates are embedded inside the upper and lower support plates to maintain good rigidity and ensure the stability and reliability of the support. The rubber sleeve is filled with gas at a certain pressure. When the ground or platform vibrates, the rubber sleeve can effectively isolate the vibration, preventing the vibration from being transmitted to the instrument and avoiding vibration interference. The air pressure inside the airbag can be set to different values ​​according to actual needs, such as the weight of the instrument it carries or the size of the airbag. The airbag can be closed or equipped with an inflation nozzle to adjust the air pressure in a timely manner.

[0011] (2) The upper section of the support rod is provided with an external thread. The upper section of the support rod extends into the screw hole at the bottom of the instrument and is threadedly connected to the screw hole. When the knob is turned, the length of the upper end of the support rod entering the instrument changes, thereby adjusting the height of the instrument.

[0012] (3) The upper section diameter of the support rod is smaller than the lower section diameter. When installing the knob, the lower end face of the knob contacts the annular step, which limits the axial position of the knob. Multiple flat keys are provided on the lower outer circle of the lower section to assemble with the keyway on the inner wall of the knob mounting hole. This way, the knob will not slip when it rotates and drives the support rod to rotate. The ball fixedly connected to the lower end of the support rod can also rotate in the spherical groove.

[0013] (4) The upper hinge support and the upper cover plate of the spherical hinge are fixedly connected to the upper cover plate by bolts, which facilitates assembly. The head of the bolt can be located above the upper cover plate or at the bottom of the upper support plate. If it is at the bottom of the upper support plate, it is concealed and more aesthetically pleasing. Due to the setting of the spherical hinge, the knob drives the support rod to rotate, and the support rod drives the ball to rotate in the spherical groove. The lower section of the support rod rotates in the guide hole opened in the upper cover plate. The guide hole plays the role of limiting the support rod to keep it in a vertical state, thereby ensuring the stability of the load instrument.

[0014] (5) The anti-slip rubber pad has a good anti-slip effect when in contact with the table or laboratory table surface.

[0015] In summary, this utility model features a novel design and simple structure. The components are assembled separately, facilitating installation and disassembly. It offers excellent shock absorption and vibration damping, while also allowing for easy height adjustment and good stability, ensuring the instrument's levelness and broadening its applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 Top view of the middle knob and the upper section of the support rod. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0019] like Figure 1 and Figure 2 As shown, the present invention provides an adjustable shockproof base for airbags, comprising an upper support plate 1 and a lower support plate 2 that are horizontally arranged and correspond to each other. A rubber sleeve 3 is provided between the outer edges of the upper support plate 1 and the outer edges of the lower support plate 2. The upper support plate 1, the lower support plate 2, and the rubber sleeve 3 form a hollow airbag 4. A spherical hinge is provided at the top center of the upper support plate 1, and a support rod is connected to the spherical hinge. A knob 5 is fixedly mounted on the support rod in the same direction. An external thread 6 is provided on the outer circle of the support rod above the knob 5, which connects to the screw hole at the bottom of the instrument.

[0020] The spherical hinge includes a hinge support 7 on the upper support plate 1 and an upper cover plate 8 on the hinge support 7. The upper support plate 1, the hinge support 7 and the upper cover plate 8 are connected as a whole by several bolts 9. A spherical groove is formed between the top surface of the hinge support 7 and the bottom surface of the upper cover plate 8. The lower half of the spherical groove is located inside the hinge support 7 and the upper half of the spherical groove is located inside the upper cover plate 8. A sphere 10 is assembled in the spherical groove. The diameter of the sphere 10 is equal to the diameter of the spherical groove. The center of the sphere 10 is located on the upper end plane of the hinge support 7. A guide hole 11 is formed in the upper cover plate 8, which is open from top to bottom and communicates with the spherical groove at its lower end. The lower end of the support rod passes through the guide hole 11 and is fixedly connected to the upper end of the sphere 10.

[0021] The support rod comprises an upper section 12 and a lower section 13. The diameter of the upper section 12 is smaller than that of the lower section 13. An annular step 14 is formed between the lower end of the upper section 12 and the upper end of the lower section 13. A mounting hole for fitting into the upper section 12 is provided in the center of the knob 5. The lower end of the knob 5 contacts the annular step 14. Two or more keyways are provided axially along the inner circle of the mounting hole of the knob 5. The keyways are arranged in a circumferential array along the center line of the support rod. A flat key 15 is integrally fitted into the keyway on the outer circle of the upper section 12. The distance from the outer side of each flat key 15 to the center line of the support rod is equal to the diameter of the lower section 13. An air inlet 16 is provided on the rubber sleeve 3. A layer of anti-slip rubber pad 17 is bonded to the bottom surface of the lower support plate 2. The anti-slip rubber pad 17 contacts the table or laboratory table surface and has a good anti-slip effect. The outer diameter of the lower section 13 of the support rod is equal to the diameter of the guide hole 11.

[0022] The working principle and technical effects of this utility model are as follows:

[0023] (1) Both the upper support plate 1 and the lower support plate 2 are circular. The upper and lower ports of the rubber sleeve 3 are fixed and sealed to the outer circles of the upper support plate 1 and the lower support plate 2, respectively. The upper support plate 1 and the lower support plate 2 can also be integrally made with the rubber sleeve 3. Metal plates or hard plastic plates are embedded inside the upper support plate 1 and the lower support plate 2 to maintain good rigidity and ensure the stability and reliability of the support. The rubber sleeve 3 is filled with gas at a certain pressure. When the ground or platform vibrates, the rubber sleeve 3 can effectively isolate the vibration, preventing the vibration from being transmitted to the instrument and avoiding vibration interference. The air pressure inside the air bag 4 can be set to different values ​​according to actual needs, such as the weight of the instrument it is loaded with or the size of the air bag 4. The air bag 4 can be closed or equipped with an inflation nozzle 16 (similar to the inflation nozzles of basketballs, footballs, etc.) to adjust the air pressure in a timely manner.

[0024] (2) The upper section 12 of the support rod is provided with an external thread 6. The upper section 12 of the support rod extends into the screw hole at the bottom of the instrument and is threadedly connected to the screw hole. When the knob 5 is turned, the length of the upper end of the support rod entering the instrument changes, thereby adjusting the height of the instrument.

[0025] (3) The diameter of the upper section 12 of the support rod is smaller than that of the lower section 13. When the knob 5 is installed, the lower end face of the knob 5 contacts the annular step 14, which limits the axial position of the knob 5. Multiple flat keys 15 are provided on the lower outer circle of the lower section 13 to assemble with the keyway on the inner wall of the mounting hole of the knob 5. In this way, the knob 5 will not slip when it rotates and drives the support rod to rotate. The ball 10 fixedly connected to the lower end of the support rod can also rotate in the spherical groove.

[0026] (4) The upper hinge support 7 and the upper cover plate 8 of the spherical hinge are fixedly connected to the upper cover plate 8 by bolts 9, which is convenient for assembly. The head of the bolt 9 can be located above the upper cover plate 8 or at the bottom of the upper support plate 1. If it is at the bottom of the upper support plate 1, it is concealed. Due to the setting of the spherical hinge, the knob 5 drives the support rod to rotate, and the support rod drives the ball 10 to rotate in the spherical groove. The lower section 13 of the support rod rotates in the guide hole 11 opened on the upper cover plate 8. The guide hole 11 plays the role of limiting the support rod to maintain a vertical state, thereby ensuring the stability of the load instrument.

[0027] The above embodiments illustrate the basic principles and features of this utility model. However, the above descriptions are merely preferred embodiments and are not limited to these embodiments. Those skilled in the art, inspired by this patent, can make many modifications and improvements without departing from the spirit and scope of the claims, all of which fall within the protection scope of this utility model. Therefore, the patent and its scope of protection should be determined by the appended claims.

Claims

1. An airbag-type adjustable shockproof base, characterized in that: It includes an upper support plate and a lower support plate that are horizontally aligned and positioned vertically. A rubber sleeve is provided between the outer edges of the upper support plate and the outer edges of the lower support plate. The upper support plate, the lower support plate, and the rubber sleeve form a hollow airbag. A spherical hinge is provided at the top center of the upper support plate. A support rod is connected to the spherical hinge. A knob is fixedly mounted on the support rod in the same direction. The outer circle of the support rod has an external thread above the knob that connects to the screw hole at the bottom of the instrument.

2. The airbag-type adjustable shockproof base according to claim 1, characterized in that: The spherical hinge includes a hinge support on an upper support plate and an upper cover plate on the hinge support. The upper support plate, hinge support, and upper cover plate are connected as a whole by several bolts. A spherical groove is formed between the top surface of the hinge support and the bottom surface of the upper cover plate. The lower half of the spherical groove is located inside the hinge support, and the upper half of the spherical groove is located inside the upper cover plate. A sphere is assembled inside the spherical groove. The diameter of the sphere is equal to the diameter of the spherical groove. The center of the sphere is located on the upper end plane of the hinge support. A guide hole is formed in the upper cover plate, which is open from top to bottom and communicates with the spherical groove at its lower end. The lower end of the support rod passes through the guide hole and is fixedly connected to the upper end of the sphere.

3. The airbag-type adjustable shockproof base according to claim 2, characterized in that: The support rod consists of an upper section and a lower section. The diameter of the upper section is smaller than that of the lower section. An annular step is formed between the lower end of the upper section and the upper end of the lower section. A mounting hole for fitting into the upper section is opened in the center of the knob. The lower end of the knob contacts the annular step. Two or more keyways are opened axially in the inner circle of the mounting hole of the knob. The keyways are arranged in a circumferential array along the center line of the support rod. A flat key is integrally fitted into the keyway on the outer circle of the upper section. The outer diameter of the lower section is equal to the diameter of the guide hole.

4. The airbag-type adjustable shockproof base according to claim 3, characterized in that: The airbag is equipped with an inflation nozzle.

5. An adjustable shock-absorbing base with an airbag design according to any one of claims 1-4, characterized in that: A layer of anti-slip rubber pad is bonded to the bottom surface of the lower support plate.

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