One-way adjustable valve body and nitrogen shock absorber

Abstract

The utility model provides a one-way adjustable valve body and a nitrogen shock absorber, and the one-way adjustable valve body comprises a valve body, one end of the valve body is provided with a first oil liquid flowing channel and at least two second oil liquid flowing channels, and the end, away from the oil liquid flowing channels, of the valve body is provided with a containing space; one end of the adjusting core is provided with a semi-ring-shaped adjusting channel, and the adjusting core is narrowed from one end to the other end; a positioning groove is formed in the position, close to the adjusting channel, of the middle of the adjusting core along the outer wall of the adjusting core. A sealing groove is formed in the side, away from the adjusting channel, of the positioning groove along the outer wall of the adjusting core. A plunger containing cavity is formed in the side, away from the positioning groove, of the sealing groove. According to the one-way adjustable valve body and the nitrogen shock absorber, the problems that an existing product is not accurate enough in oil quantity adjustment, not sensitive enough in reaction speed adjustment and not accurate enough in gear adjustment are solved, and the one-way adjustable valve body and the nitrogen shock absorber have the advantages that the oil quantity adjustment is more accurate, the reaction speed adjustment is more sensitive, and the gear adjustment is more accurate.

Description

Technical Field

[0001] The utility model relates to the field of automobile shock absorbers, in particular to a one-way adjustable valve body and a nitrogen shock absorber. Background Art

[0002] With the continuous development of the domestic automobile market, people's requirements for automobile power, operation, braking, comfort, etc. are constantly increasing, and the competition in the automobile industry is becoming more and more fierce. As one of the indispensable modules in automobile production, shock absorbers play a vital role in the comfort and stability of automobiles. Nitrogen shock absorbers are increasingly used with the development of automobile off-road sports. The self-adjustment of nitrogen pressure can better adjust the softness and hardness of the shock absorber. At the same time, the better thermal attenuation performance of nitrogen shock absorbers also provides drivers with a better driving experience, which not only increases driving pleasure, but also improves driving comfort. On this basis, it also takes into account safety under high-speed bumpy driving conditions. Nitrogen will basically not deteriorate after a single injection, which also increases the reliability of the shock absorber to a certain extent. At present, adjustable nitrogen shock absorbers are the mainstream products in the off-road vehicle market.

[0003] Oil-gas separation and the use of nitrogen are the main working principles of nitrogen shock absorbers: the air in traditional oil-gas hybrid shock absorbers is replaced by nitrogen, and the nitrogen is sealed in the shock absorber through two methods: capsule type and gas tank piston type. The capsule type is to seal the nitrogen in a rubber capsule and put it into a sleeve. The gas tank type is to seal nitrogen in an aluminum alloy gas tank with good thermal conductivity, and use a floating piston made of polytetrafluoroethylene to separate the nitrogen and oil. When the tire bounces and drives the working piston on the piston rod to reciprocate in the oil during vehicle driving, an oil pressure difference will be generated. At this time, the oil flows through the compression valve or the restoring valve, generating a damping force to attenuate the vibration. Due to the reciprocating motion of the piston rod, nitrogen will expand and compress to compensate for the change in cylinder volume. By adding an oil flow control device to the valve system, the damping force can be regulated under the same speed and the same valve plate combination.

[0004] However, the current oil regulating device cannot be used for the new specifications of the nitrogen shock absorber cylinder adjustment seat. At the same time, the old specifications of the nitrogen shock absorber adjustable device have poor control accuracy and slow response speed for the damping force. Therefore, it is necessary to design a new specification of oil flow regulation control device for matching use. Utility Model Content

[0005] The main purpose of the utility model is to provide a one-way eight-stage adjustable valve body and a nitrogen shock absorber, which overcome the above technical problems.

[0006] In order to achieve the above purpose, the utility model proposes the following technical solutions:

[0007] A one-way adjustable valve body, characterized by comprising:

[0008] A valve body, one end of which is provided with a first oil flow channel and at least two second oil flow channels, and one end of which is away from the oil flow channel is provided with a receiving space;

[0009] The regulating core can be placed in the accommodation space on the valve body, and a semi-annular regulating channel is arranged at one end, and the regulating channel is narrowed from one end to the other end;

[0010] A positioning groove is provided along the outer wall of the regulating core at a position in the middle of the regulating core close to the regulating channel;

[0011] A sealing groove is arranged along the outer wall of the adjusting core on one side of the positioning groove away from the adjusting channel;

[0012] A plunger accommodating cavity is arranged on one side of the sealing groove away from the positioning groove, for accommodating the spring ball head plunger.

[0013] Furthermore, the bottom of one end of the regulating core is inwardly concave to form an oil flow space for oil flow;

[0014] Furthermore, a connecting hole connecting the accommodating space with the outside is provided in the middle of the valve body, and together with the adjusting channel, a space of adjustable size is formed.

[0015] Furthermore, a valve plate device is provided at one end of the second oil flow channel.

[0016] Furthermore, a communication space connecting the accommodating space and the outside is provided at one end of the valve body away from the first oil flow channel.

[0017] Furthermore, one end of the regulating core away from the regulating channel is connected with a driving rotation device, and the driving rotation device can just pass through the connecting space and is fixedly connected to the regulating core.

[0018] Furthermore, a positioning shaft is provided on the valve body, and the positioning shaft slightly protrudes from the inner wall of the valve body and is used in conjunction with the positioning groove.

[0019] Furthermore, a plurality of hemispherical recessed mechanisms are arranged on the inner wall of the valve body accommodating space.

[0020] Furthermore, an oil hole connected with the connecting hole is arranged on the oil circulation space.

[0021] According to another aspect of the present application, a nitrogen shock absorber is provided, the nitrogen shock absorber comprising the one-way adjustable valve body mentioned above.

[0022] The one-way adjustable valve body and nitrogen shock absorber of the utility model solve the problems of inaccurate oil quantity regulation, insensitive regulation response speed and inaccurate gear regulation of existing products, and have the advantages of more accurate oil quantity regulation, more sensitive regulation response speed and more accurate gear regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0024] Figure 1 A longitudinal cross-sectional schematic diagram of a one-way adjustable valve body of the utility model is shown.

[0025] Figure 2 A multi-angle structural schematic diagram of the adjusting core of the utility model is shown.

[0026] Figure 3 The utility model shows a schematic cross-sectional view of the overall structure of a nitrogen shock absorber.

[0027] The above drawings include the following reference numerals:

[0028] 1. Valve body; 2. Adjusting core; 11. First oil flow channel; 12. Second oil flow channel; 13. Connecting hole; 14. Valve plate device; 15. Connecting space; 16. Positioning shaft; 21. Adjusting channel; 22. Positioning groove; 23. Sealing groove; 24. Plunger accommodating chamber; 25. Driving rotating device; a. Main working parts; b. Nitrogen cylinder parts; c. One-way adjustable valve body. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] Reference below Figures 1 to 3 , the utility model is further described as follows:

[0033] A one-way adjustable valve body, characterized by comprising:

[0034] A valve body 1, one end of the valve body 1 is provided with a first oil flow channel 11 and at least two second oil flow channels 12, and one end of the valve body 1 away from the oil flow channel is provided with a receiving space;

[0035] The regulating core 2 can be placed in the accommodation space on the valve body 1, and a semi-annular regulating channel 21 is provided at one end, and the regulating channel 21 is narrowed from one end to the other end;

[0036] In this embodiment, a connecting hole 13 is provided in the middle of the valve body 1 to connect the accommodating space with the outside, and together with the adjusting channel 21, a space of adjustable size is formed.

[0037] Since the regulating channel 21 is narrowed, the oil will be reduced as the matching area between the regulating channel 21 and the connecting hole 13 changes, thereby achieving the effect of regulating the amount of oil passing through.

[0038] A positioning groove 22 is provided along the outer wall of the adjusting core 2 at a position in the middle of the adjusting core 2 close to the adjusting channel 21;

[0039] In one embodiment, a positioning shaft 16 is disposed on the valve body 1 . The positioning shaft 16 slightly protrudes from the inner wall of the valve body 1 and is used in conjunction with the positioning groove 22 .

[0040] The positioning groove 22 cooperates with the positioning shaft 16 to limit the rotation range of the adjusting core 2 and ensure that the adjusting core 2 rotates within a certain angle.

[0041] A sealing groove 23 is arranged along the outer wall of the adjusting core 2 on one side of the positioning groove 22 away from the adjusting channel 21;

[0042] The sealing ring groove 22 is used in conjunction with the sealing ring on the adjusting core 2 to improve the sealing degree of the one-way adjustable valve body and prevent oil leakage from affecting the product usage experience.

[0043] A plunger accommodating cavity 24 is provided on one side of the sealing groove 23 away from the positioning groove 22 for accommodating a spring ball plunger. A plurality of hemispherical recessed mechanisms are provided on the inner wall of the accommodating space of the valve body 1.

[0044] In one embodiment, one end of the adjusting core 2 away from the adjusting channel is connected to a driving rotation device 25 , and the driving rotation device 25 can just pass through the connecting space 15 and is fixedly connected to the adjusting core 2 .

[0045] The spherical part on the top of the spring ball head plunger cooperates with multiple hemispherical recessed mechanisms. When in use, as the adjustment core 2 rotates, the spring ball head plunger can sink into different recessed mechanisms in turn. When the spring ball head plunger sinks into the recessed mechanism, a metal collision prompt sound will be emitted to achieve the purpose of gear position prompt.

[0046] In this embodiment, an oil hole 26 communicating with the communicating hole 13 is provided in the oil circulation space 20 .

[0047] In this embodiment, the bottom of one end of the regulating core 2 is inwardly recessed to form an oil circulation space 20 for oil circulation;

[0048] In this embodiment, a valve plate device 14 is disposed at one end of the second oil flow channel 12 .

[0049] When the oil enters the one-way adjustable valve body through the second oil flow channel 12 , the oil passes through the valve plate device 14 , and generates different compression damping forces according to different compression speeds.

[0050] When the piston rod performs a restoring stroke and the oil flows out of the second oil flow channel 12 of the one-way adjustable valve body, the partial valve plate device 14 cannot block the oil, and the oil can flow out normally, achieving the effect of one-way regulation.

[0051] In this embodiment, a communication space 15 connecting the accommodating space and the outside is provided at one end of the valve body 1 away from the first oil flow passage 11 .

[0052] According to another aspect of the present application, a nitrogen shock absorber is provided, the nitrogen shock absorber comprising the one-way adjustable valve body mentioned above.

[0053] The oil flow rate is adjusted through a one-way adjustable valve body to achieve different damping forces, thereby enabling the nitrogen shock absorber to have a variety of different shock absorbing effects.

[0054] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0055] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0056] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0057] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A one-way adjustable valve body, characterized in that: include: A valve body (1), wherein one end of the valve body (1) is provided with a first oil flow channel (11) and at least two second oil flow channels (12), and one end of the valve body (1) away from the oil flow channel is provided with a receiving space; An adjusting core (2), the adjusting core (2) can be placed in the accommodation space on the valve body (1), one end of the adjusting core is provided with a semi-annular adjusting channel (21), and the adjusting channel (21) is narrowed from one end to the other end; A positioning groove (22) is provided along the outer wall of the adjusting core (2) at a position in the middle of the adjusting core (2) close to the adjusting channel (21); A sealing groove (23) is provided along the outer wall of the adjusting core (2) on one side of the positioning groove (22) away from the adjusting channel (21); A plunger accommodating cavity (24) is provided on one side of the sealing groove (23) away from the positioning groove (22) for accommodating a spring ball head plunger.

2. A one-way adjustable valve body according to claim 1, characterized in that: The bottom of one end of the regulating core (2) is inwardly concave to form an oil circulation space (20) for oil circulation.

3. A one-way adjustable valve body according to claim 2, characterized in that: A connecting hole (13) is provided in the middle of the valve body (1) for connecting the accommodating space with the outside, and together with the regulating channel (21) forms a space with adjustable size.

4. A one-way adjustable valve body according to claim 1, characterized in that: A valve plate device (14) is provided at one end of the second oil flow channel (12).

5. The one-way adjustable valve body according to claim 1, characterized in that: An end of the valve body (1) away from the first oil flow channel (11) is provided with a communication space (15) connecting the accommodating space with the outside.

6. A one-way adjustable valve body according to claim 5, characterized in that: One end of the adjusting core (2) away from the adjusting channel is connected to a driving rotation device (25), and the driving rotation device (25) can just pass through the connecting space (15) and is fixedly connected to the adjusting core (2).

7. The one-way adjustable valve body according to claim 1, characterized in that: The valve body (1) is provided with a positioning shaft (16), which slightly protrudes from the inner wall of the valve body (1) and is used in conjunction with the positioning groove (22).

8. The one-way adjustable valve body according to claim 1, characterized in that: A plurality of hemispherical recessed mechanisms are arranged on the inner wall of the accommodating space of the valve body (1).

9. The one-way adjustable valve body according to claim 3, characterized in that: The oil circulation space (20) is provided with an oil hole (26) which is in communication with the communication hole (13).

10. A nitrogen shock absorber, characterized in that: The nitrogen shock absorber comprises the one-way adjustable valve body according to any one of claims 1 to 9.

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