Spring cylinder bottom

Abstract

The utility model relates to a spring cylinder bottom, including at least two cylinder bottom spare, each cylinder bottom spare all includes base and sets up nitrogen storage cavity on the base, is equipped with nitrogen connecting hole on the base, one end of base is connected with two nitrogen adjusting cavities, two nitrogen adjusting cavities communicate with nitrogen storage cavity respectively, and both sides of base are connected with nitrogen through -hole, and two nitrogen through -holes communicate with two nitrogen adjusting cavities respectively, two adjacent cylinder bottom spare are connected through nitrogen through -hole, the technical scheme of the present application has the beneficial technical effect that: base is equipped with two nitrogen adjusting cavities in the end away from nitrogen storage cavity, is used for with the nitrogen adjusting cavity intercommunication of adjacent cylinder bottom spare. Nitrogen through -hole sets up in both sides of base, communicates with two nitrogen adjusting cavities respectively, and nitrogen can flow between nitrogen adjusting cavities through nitrogen through -hole, or carries out nitrogen exchange with adjacent cylinder bottom spare. Two adjacent cylinder bottom spare realize the connection through nitrogen through -hole, form a whole nitrogen system.

Description

Technical Field

[0001] This utility model relates to the field of spring cylinders, specifically to a spring cylinder bottom. Background Technology

[0002] A nitrogen spring, also known as a nitrogen cylinder, is a new type of elastic component that uses nitrogen as the working medium to provide constant pressure and delayed action for corresponding parts. A nitrogen spring is a flexible elastic device. Nitrogen springs are ideal for tire-mounted construction machinery that frequently operates on uneven terrain, where elastic suspension is unsuitable. Rigid suspension, on the other hand, relies solely on the pressure of the tires for partial damping. However, construction machinery with rigid suspension experiences bouncing even at slightly increased speeds. Nitrogen springs, with their superior damping effect, small size, and light weight, are increasingly widely used.

[0003] Existing spring cylinders typically consist of a cylinder body, with a certain amount of nitrogen gas filling the spherical chamber within the cylinder body and a certain amount of oil filling the working cylinder, separated by an oil-gas diaphragm. A piston assembly is used; when pressure is applied to one end of the piston assembly, the nitrogen gas and oil create a counter-pressure, achieving vibration damping. However, existing spring cylinders have independent oil and gas filling holes at the bottom for replenishing nitrogen and oil. In practical use, spring cylinders in different positions require different damping effects, and adjacent spring cylinders are usually independently configured, resulting in a fixed damping effect after nitrogen replenishment, making adjustment difficult.

[0004] Therefore, it is very necessary to provide a spring cylinder bottom to solve the above-mentioned technical problems. Utility Model Content

[0005] Based on the above description, this utility model provides a spring cylinder bottom to solve the problem of existing spring cylinders having independent oil filling holes and air filling holes at the bottom for nitrogen and oil replenishment. In practical use, spring cylinders in different positions require different buffering effects, and adjacent spring cylinders are usually set independently, resulting in a fixed buffering effect after nitrogen replenishment, which is difficult to adjust.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A spring cylinder bottom includes at least two cylinder bottom components, each of the cylinder bottom components includes a base and a nitrogen storage chamber disposed on the base, the base is provided with a nitrogen connection hole, the nitrogen connection hole is used to connect with the spring cylinder; one end of the base is connected to two nitrogen regulating chambers, the two nitrogen regulating chambers are respectively connected to the nitrogen storage chamber, and nitrogen through holes are connected to both sides of the base, the two nitrogen through holes are respectively connected to the two nitrogen regulating chambers; two adjacent cylinder bottom components are connected through the nitrogen through holes.

[0007] Furthermore, the base is provided with a connecting slide, and the base is connected with a first through hole and a second through hole. The first through hole is connected to one of the nitrogen regulating chambers, and the second through hole is connected to the other nitrogen regulating chamber.

[0008] Furthermore, it also includes a venting switch, which includes a switch slider slidably connected within the connecting slide. The switch slider is provided with a third through hole, a fourth through hole, and a fifth through hole. The third through hole communicates with the nitrogen storage chamber. When the fourth through hole is in a first position, it communicates with the first through hole to connect the nitrogen storage chamber with one of the nitrogen regulating chambers. When the fifth through hole is in a second position, it communicates with the second through hole to connect the nitrogen storage chamber with the other nitrogen regulating chamber.

[0009] Furthermore, the ventilation switch includes a first drive connected to the base, the telescopic end of the first drive being connected to the switch slider, and the first drive being used to drive the switch slider to move.

[0010] Furthermore, a sealing ring is externally connected to the switch slider.

[0011] Furthermore, the switch slider is provided with a spring groove, and a lifting block and a spring with one end connected to the spring groove and the other end connected to the lifting block are slidably connected in the spring groove.

[0012] Furthermore, the base is provided with a ball bearing groove, and the ball bearing groove is provided with a first groove, a second groove, a third groove and a fourth groove in sequence from front to back. When the lifting block slides to the first groove, it is in the first sealing position; when the lifting block slides to the second groove, it is in the position where the fourth through hole communicates with the first through hole; when the lifting block slides to the third groove, it is in the position where the fifth through hole communicates with the second through hole; when the lifting block slides to the fourth groove, it is in the second sealing position.

[0013] Furthermore, pressure sensors are connected to the first, second, third, and fourth grooves.

[0014] Furthermore, it also includes a regulating chamber switch, which includes a sealing piston slidably connected to the nitrogen regulating chamber and an regulating drive connected to the base, wherein the telescopic end of the regulating drive is connected to the sealing piston.

[0015] Furthermore, the base is also connected to a pressure detection port, which is used to connect a pressure gauge to detect the pressure in the nitrogen storage chamber.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] Two nitrogen regulating chambers are located at the end of the base furthest from the nitrogen storage chamber. These chambers communicate with the nitrogen regulating chambers of adjacent cylinder bottom components or serve as nitrogen filling or releasing components. Nitrogen through-holes are located on both sides of the base, communicating with the two nitrogen regulating chambers respectively. Nitrogen can flow between the nitrogen regulating chambers through these through-holes or exchange nitrogen with adjacent cylinder bottom components. Adjacent cylinder bottom components are connected via nitrogen through-holes, allowing nitrogen to circulate among multiple cylinder bottom components, forming a unified nitrogen system. This solves the problem of existing spring cylinders requiring separate oil and air filling holes at the cylinder bottom for nitrogen and oil replenishment. In practical use, spring cylinders in different positions require different buffering effects. Adjacent spring cylinders are usually set independently, resulting in a fixed buffering effect after nitrogen replenishment, making adjustment difficult. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the bottom of a spring cylinder provided in an embodiment of this utility model;

[0019] Figure 2 A top view of the bottom structure of a spring cylinder provided in an embodiment of this utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 4 for Figure 3 Enlarged structural diagram at point Q;

[0022] Figure 5 for Figure 4 Enlarged structural diagram at point W;

[0023] Figure 6 A front view of the bottom structure of a spring cylinder provided for an embodiment of this utility model;

[0024] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at point BB;

[0025] Figure 8 for Figure 7 A magnified structural diagram at point E in the middle.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Cylinder bottom component;

[0028] 2. Base; 21. Nitrogen storage chamber; 22. Nitrogen connection hole; 23. Nitrogen adjustment chamber; 24. Nitrogen through hole; 25. Connecting slide; 26. First through hole; 27. Second through hole; 28. Ball bearing groove; 281. First groove; 282. Second groove; 283. Third groove; 284. Fourth groove; 29. ​​Pressure sensor;

[0029] 3. Ventilation switch component; 31. Switch slider; 311. Third through hole; 312. Fourth through hole; 313. Fifth through hole; 314. Spring groove; 32. First drive; 33. Sealing ring; 34. Lifting block; 35. Spring;

[0030] 4. Adjusting chamber switch; 41. Sealing piston; 42. Adjusting drive;

[0031] 5. Air pressure detection port. Detailed Implementation

[0032] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0034] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0035] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0036] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0037] like Figures 1 to 8 As shown, a spring cylinder bottom includes at least two cylinder bottom components 1. Each cylinder bottom component 1 includes a base 2 and a nitrogen storage chamber 21 disposed on the base 2. The base 2 is provided with a nitrogen connection hole 22 for connecting to the spring cylinder. One end of the base 2 is connected to two nitrogen regulating chambers 23, which are respectively connected to the nitrogen storage chamber 21. Nitrogen through holes 24 are connected to both sides of the base 2, and the two nitrogen through holes 24 are respectively connected to the two nitrogen regulating chambers 23. Two adjacent cylinder bottom components 1 are connected through the nitrogen through holes 24.

[0038] In this embodiment, a nitrogen storage chamber 21 is disposed on the base 2 for storing nitrogen. A nitrogen connection hole 22 is connected to the base 2, which is used to connect to the spring cylinder and supply nitrogen to it, enabling nitrogen flow between the nitrogen storage chamber 21 and the spring cylinder. Two nitrogen regulating chambers 23 are provided at the end of the base 2 away from the nitrogen storage chamber 21, for communication with the nitrogen regulating chambers 23 of adjacent cylinder bottom components 1, or for use as nitrogen filling or releasing components. Nitrogen through holes 24 are disposed on both sides of the base 2, communicating with the two nitrogen regulating chambers 23 respectively. Nitrogen can flow between the nitrogen regulating chambers 23 through the nitrogen through holes 24, or exchange nitrogen with adjacent cylinder bottom components 1. Adjacent cylinder bottom components 1 are connected through the nitrogen through holes 24, allowing nitrogen to flow between multiple cylinder bottom components 1, forming a unified nitrogen system. This solves the problem of existing spring cylinders requiring separate oil filling holes and air filling holes at the cylinder bottom for nitrogen and oil replenishment. In practical use, spring cylinders in different positions require different buffering effects. Two adjacent spring cylinders are usually set independently, which results in a fixed buffering effect after nitrogen is added, making it difficult to adjust.

[0039] In some embodiments, the base 2 is provided with a connecting slide 25, and the base 2 is connected with a first through hole 26 and a second through hole 27. The first through hole 26 is connected to one of the nitrogen regulating chambers 23, and the second through hole 27 is connected to the other nitrogen regulating chamber 23.

[0040] In this embodiment, the first through hole 26 is formed inside the base 2 and communicates with one of the nitrogen regulating chambers 23. The second through hole 27 is also formed inside the base 2 and communicates with the other nitrogen regulating chamber 23.

[0041] In some embodiments, a venting switch 3 is further included, the venting switch 3 including a switch slider 31 slidably connected within the connecting slide 25, the switch slider 31 having a third through hole 311, a fourth through hole 312 and a fifth through hole 313, the third through hole 311 communicating with the nitrogen storage chamber 21; the fourth through hole 312, in a first position, communicating with the first through hole 26 to connect the nitrogen storage chamber 21 with one of the nitrogen regulating chambers 23; the fifth through hole 313, in a second position, communicating with the second through hole 27 to connect the nitrogen storage chamber 21 with the other nitrogen regulating chamber 23.

[0042] In this embodiment, the switch slider 31 is slidably connected within the connecting slide 25. Movement within the connecting slide 25 switches the flow path of nitrogen. A third through-hole 311 is formed on the switch slider 31 and is always connected to the nitrogen storage chamber 21. The third through-hole 311 serves as a fixed interface for the nitrogen storage chamber 21, ensuring that nitrogen can flow to the switch slider 31. A fourth through-hole 312 is formed on the switch slider 31. In the first position, it connects to the first through-hole 26, connecting the nitrogen storage chamber 21 to one of the nitrogen regulating chambers 23, and disconnects from the first through-hole 26, cutting off the nitrogen flow in this path. A fifth through-hole 313 is formed on the switch slider 31. In the second position, it connects to the second through-hole 27, connecting the nitrogen storage chamber 21 to another nitrogen regulating chamber 23, and disconnects from the second through-hole 27, cutting off the nitrogen flow in this path.

[0043] In some embodiments, the ventilation switch 3 includes a first drive 32 connected to the base 2, the telescopic end of the first drive 32 being connected to the switch slider 31, and the first drive 32 being used to drive the switch slider 31 to move.

[0044] In this embodiment, the first drive 32 is driven by pneumatic pressure, hydraulic pressure, or electric motor.

[0045] In some embodiments, a sealing ring 33 is externally connected to the switch slider 31.

[0046] In this embodiment, a sealing ring 33 is connected to the switch slider 31 to ensure a tight seal.

[0047] In some embodiments, the switch slider 31 is provided with a spring groove 314, and a lifting block 34 and a spring 35 with one end connected to the spring groove 314 and the other end connected to the lifting block 34 are slidably connected in the spring groove 314.

[0048] In this embodiment, a spring groove 314 is formed on the switch slider 31, serving as a space to accommodate the lifting block 34 and the spring 35, providing a sliding track for the lifting block 34 and a mounting position for the spring 35. The lifting block 34 is slidably connected within the spring groove 314, and under the action of the spring 35, it can move up and down relative to the switch slider 31. One end of the spring 35 is connected to the spring groove 314, and the other end is connected to the lifting block 34 to provide a restoring force.

[0049] In some embodiments, the base 2 is provided with a ball bearing groove 28, and the ball bearing groove 28 is provided with a first groove 281, a second groove 282, a third groove 283 and a fourth groove 284 in sequence from front to back. When the lifting block 34 slides to the first groove 281, it is in the first sealing position; when the lifting block 34 slides to the second groove 282, it is in the position where the fourth through hole 312 communicates with the first through hole 26; when the lifting block 34 slides to the third groove 283, it is in the position where the fifth through hole 313 communicates with the second through hole 27; when the lifting block 34 slides to the fourth groove 284, it is in the second sealing position.

[0050] In this embodiment, the ball bearing groove 28 is formed on the base 2, serving as the sliding track for the lifting block 34. Precise positioning of the lifting block 34 is achieved through internal grooves. The first groove 281, the second groove 282, the third groove 283, and the fourth groove 284 are arranged sequentially from front to back within the ball bearing groove 28. Each groove corresponds to a different operating position of the lifting block 34, thereby regulating the nitrogen gas.

[0051] In some embodiments, pressure sensors 29 are connected to the first groove 281, the second groove 282, the third groove 283 and the fourth groove 284.

[0052] In this embodiment, pressure sensors 29 are connected to the first groove 281, the second groove 282, the third groove 283, and the fourth groove 284 to detect the position of the lifting block 34. Additionally, connecting the controller to the pressure sensors 29 is a common technique in the art and will not be elaborated upon here.

[0053] In some embodiments, the device further includes a regulating chamber switch 4, which includes a sealing piston 41 slidably connected to the nitrogen regulating chamber 23 and an regulating drive 42 connected to the base 2. The telescopic end of the regulating drive 42 is connected to the sealing piston 41.

[0054] In this embodiment, to further improve the sealing performance, an adjustment chamber switch 4 is provided. When sealing is required, the adjustment drive 42 drives the sealing piston 41 to perform sealing, and vice versa. This will not be described in detail here.

[0055] In some embodiments, the base 2 is also connected to a pressure detection hole 5, which is used to connect a pressure gauge to detect the pressure in the nitrogen storage chamber 21.

[0056] In this embodiment, in order to monitor the air pressure more accurately, an air pressure detection hole 5 is provided. The air pressure detection hole 5 is connected to a pressure gauge to detect the air pressure in the nitrogen storage chamber 21.

[0057] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0058] Two nitrogen regulating chambers are located at the end of the base furthest from the nitrogen storage chamber. These chambers communicate with the nitrogen regulating chambers of adjacent cylinder bottom components or serve as nitrogen filling or releasing components. Nitrogen through-holes are located on both sides of the base, communicating with the two nitrogen regulating chambers respectively. Nitrogen can flow between the nitrogen regulating chambers through these through-holes or exchange nitrogen with adjacent cylinder bottom components. Adjacent cylinder bottom components are connected via nitrogen through-holes, allowing nitrogen to circulate among multiple cylinder bottom components, forming a unified nitrogen system. This solves the problem of existing spring cylinders requiring separate oil and air filling holes at the cylinder bottom for nitrogen and oil replenishment. In practical use, spring cylinders in different positions require different buffering effects. Adjacent spring cylinders are usually set independently, resulting in a fixed buffering effect after nitrogen replenishment, making adjustment difficult.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spring cylinder base, characterized in that, It includes at least two cylinder bottom parts (1), each cylinder bottom part (1) includes a base (2) and a nitrogen storage chamber (21) provided on the base (2). The base (2) is provided with a nitrogen connection hole (22) for connecting to a spring cylinder. One end of the base (2) is connected to two nitrogen regulating chambers (23), which are respectively connected to the nitrogen storage chamber (21). Nitrogen through holes (24) are connected to both sides of the base (2), which are respectively connected to the two nitrogen regulating chambers (23). Two adjacent cylinder bottom parts (1) are connected through the nitrogen through holes (24).

2. The spring cylinder bottom according to claim 1, characterized in that, The base (2) is provided with a connecting slide (25), and the base (2) is connected with a first through hole (26) and a second through hole (27). The first through hole (26) is connected to one of the nitrogen regulating chambers (23), and the second through hole (27) is connected to the other nitrogen regulating chamber (23).

3. The spring cylinder bottom according to claim 2, characterized in that, It also includes a venting switch (3), which includes a switch slider (31) slidably connected in the connecting slide (25). The switch slider (31) is provided with a third through hole (311), a fourth through hole (312) and a fifth through hole (313). The third through hole (311) is connected to the nitrogen storage chamber (21). When the fourth through hole (312) is in the first position, it is connected to the first through hole (26) to connect the nitrogen storage chamber (21) to one of the nitrogen regulating chambers (23). When the fifth through hole (313) is in the second position, it is connected to the second through hole (27) to connect the nitrogen storage chamber (21) to another nitrogen regulating chamber (23).

4. The spring cylinder bottom according to claim 3, characterized in that, The ventilation switch (3) includes a first drive (32) connected to the base (2), the telescopic end of the first drive (32) being connected to the switch slider (31), and the first drive (32) being used to drive the switch slider (31) to move.

5. The cylinder bottom of a spring cylinder according to claim 3, characterized in that, The switch slider (31) is externally connected to a sealing ring (33).

6. The spring cylinder bottom according to claim 3, characterized in that, The switch slider (31) is provided with a spring groove (314), and a lifting block (34) and a spring (35) with one end connected to the spring groove (314) and the other end connected to the lifting block (34) are slidably connected in the spring groove (314).

7. The spring cylinder bottom according to claim 6, characterized in that, The base (2) is provided with a ball bearing groove (28). The ball bearing groove (28) is provided with a first groove (281), a second groove (282), a third groove (283) and a fourth groove (284) from front to back. When the lifting block (34) slides to the first groove (281), it is located in the first sealing position. When the lifting block (34) slides to the second groove (282), it is located at the position where the fourth through hole (312) communicates with the first through hole (26). When the lifting block (34) slides to the third groove (283), it is located at the position where the fifth through hole (313) communicates with the second through hole (27). When the lifting block (34) slides to the fourth groove (284), it is located in the second sealing position.

8. The cylinder bottom of a spring cylinder according to claim 7, characterized in that, Pressure sensors (29) are connected to the first groove (281), the second groove (282), the third groove (283) and the fourth groove (284).

9. The cylinder bottom of a spring cylinder according to claim 1, characterized in that, It also includes a regulating chamber switch (4), which includes a sealing piston (41) slidably connected to the nitrogen regulating chamber (23) and an regulating drive (42) connected to the base (2). The telescopic end of the regulating drive (42) is connected to the sealing piston (41).

10. The cylinder bottom of a spring cylinder according to claim 1, characterized in that, The base (2) is also connected to a pressure detection hole (5), which is used to connect a pressure gauge to detect the pressure in the nitrogen storage chamber (21).

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