Suspension valve and seat

Abstract

The invention discloses a suspension valve which comprises a valve rod, a first sealing ring, a second sealing ring, a third sealing ring, a valve body, an air inlet, an inflation inlet, a fixed end, a connecting end, a spring and a pull wire. The valve body is of a special hollow structure, the inner diameters of the two ends of the valve body are the largest, the inner diameter of the middle of the valve body is the smallest, and a hollow circular truncated cone structure is arranged at the connecting position of the portion, with the largest inner diameter, of the valve body and the portion, with the smallest inner diameter, of the valve body. According to the simplified design of the suspension valve, the suspension valve does not lose a suspension function, the suspension valve has a quick drop function, meanwhile, the production cost is greatly reduced due to the simple structural design, a traditional complex structure is omitted, batch and large-scale production is facilitated, and in subsequent assembly and maintenance, due to the fact that the technical requirement is not high, the production cost is greatly reduced. The required cost is greatly reduced; the seat provided with the suspension valve has a suspension function, the seat can be always kept at an approximate height on a bumpy road, and a comfortable experience is provided for a user.

Description

Technical Field

[0001] The invention relates to the field of gas valves, and in particular to a suspension valve. Background Art

[0002] At present, most of the seat limit suspension valves are realized by the linkage of multiple mechanical parts. For example, CN206155232U discloses a seat, which realizes the limit suspension adjustment of the seat through the mutual coordination and linkage between the first rotating plate, the rotating part, the limit plate, the limit pin and the limit groove. Although this limit suspension mechanism can well realize the limit suspension function of the seat, this mechanical structure is relatively complicated. Not only is it difficult to produce, but the subsequent assembly and maintenance are also troublesome, and the cost performance is relatively not very high. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide a suspension valve and a seat that overcome the above problems or at least partially solve the above problems.

[0004] According to one aspect of the present invention, a suspension valve is designed, the suspension valve comprising a valve stem, a first sealing ring, a second sealing ring, a third sealing ring, a valve body, an air inlet, an air charging port, a fixed end, a connecting end, a spring and a pull wire;

[0005] The valve body is a special hollow structure, the inner diameters of the two ends of the valve body are the largest, the inner diameter of the middle of the valve body is the smallest, and the connection between the largest inner diameter part of the valve body and the smallest inner diameter part of the valve body is a hollow truncated cone structure;

[0006] The first sealing ring is arranged on the valve stem, and the outer diameter of the first sealing ring is slightly larger than the maximum inner diameter of the valve body;

[0007] The second sealing ring is arranged on the valve stem, the outer diameter of the second sealing ring is slightly larger than the minimum inner diameter of the valve body, and the outer diameter of the second sealing ring is smaller than the maximum inner diameter of the valve body;

[0008] The third sealing ring is arranged on the valve stem, and the third sealing ring and the second sealing ring are the same sealing ring.

[0009] Preferably, the fixed end is a special structure, and the fixed end is used to fix the valve body, the connecting end, the spring and the pull wire. The fixed end can also be used to limit the maximum displacement of the valve stem along the axial direction.

[0010] Preferably, the air inlet is connected to an air source to provide gas, and the inflation port is connected to a working element to achieve inflation.

[0011] Preferably, when the spring and the pull wire are not operated, the pressure exerted by the gas on the valve stem is equal to the elastic force exerted by the spring on the valve stem, the valve stem is in a balanced position, the gas in the air inlet is restricted by the second sealing ring and cannot be inflated, and the gas in the inflation port is restricted by the third sealing ring and cannot be exhausted.

[0012] Preferably, when an upward force is applied to the spring, the valve stem is pulled upward by the spring and deviates from the equilibrium position, the second sealing ring restricts the gas in the air inlet from entering the inflation port, the third sealing ring cannot restrict the gas in the inflation port from being discharged from the top of the valve body, and the suspension valve completes the exhaust.

[0013] Preferably, when a downward force is applied to the spring, the valve stem is squeezed by the spring and moves downward away from the equilibrium position, the second sealing ring cannot restrict the gas in the air inlet from entering the inflation port, the third sealing ring restricts the gas in the inflation port from being discharged from the bottom of the valve body, and the suspension valve completes inflation.

[0014] Preferably, when the spring changes from a stressed state to a non-stressed state, the spring gradually returns to a balanced position, the valve stem returns to a balanced position under the action of the spring, the second sealing ring limits the gas in the air inlet from entering the inflation port, the third sealing ring limits the gas in the inflation port from being discharged from the top of the valve body, and the suspension valve completes resetting.

[0015] Preferably, when the pull wire is pulled, the valve stem is forced to move upward rapidly, the second sealing ring limits the gas in the air inlet from entering the inflation port, and the third sealing ring cannot limit the gas in the inflation port from being discharged from the top of the valve body, and the suspension valve completes rapid exhaust.

[0016] According to another aspect of the present invention, a seat is designed, which includes the suspension valve, the fixed end is connected to the lower frame of the seat, the spring end is connected to the upper frame of the seat, and the pull wire is connected to the fast-ascending and fast-descending switch.

[0017] Preferably, the suspension valve switches back and forth between the three states of inflation, exhaust and reset according to the different motion states of the seat to complete the suspension;

[0018] When the seat moves upward away from the equilibrium position, the seat upper frame drives the spring to move upward, and the suspension valve exhausts air to make the seat drop to the equilibrium position;

[0019] When the seat moves downward away from the equilibrium position, the seat lower frame drives the spring to move downward, and the suspension valve is inflated to make the seat rise to the equilibrium position;

[0020] When the seat needs to be rapidly lowered to a balanced position, the rapid ascent and descent switch can control the pull line to rapidly move upward, the suspension valve rapidly discharges gas, and the seat completes rapid descent.

[0021] The beneficial effects of the present invention are as follows: the design of the suspension valve is simplified as much as possible, which not only does not make the suspension valve lose its suspension function, but also enables the suspension valve to have a rapid descent function. At the same time, the simple structural design greatly reduces the production cost. The absence of the traditional complex structure is conducive to batch and large-scale production. In the subsequent assembly and later maintenance, the technical requirements are not high, which leads to a significant reduction in the required costs.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description of the preferred embodiment below, various advantages and benefits of the suspension valve will become clear to those of ordinary skill in the art. The accompanying drawings are only for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0024] Figure 1 A three-dimensional structural diagram of the suspension valve is shown;

[0025] Figure 2 An exploded view of the suspension valve is shown;

[0026] Figure 3 A cross-sectional view of the suspension valve in a balanced position is shown;

[0027] Figure 4 A cross-sectional view of the suspension valve in exhaust state is shown;

[0028] Figure 5 A cross-sectional view of the suspension valve in an inflated state is shown;

[0029] Figure 6 The connection diagram between the suspension valve and the seat is shown;

[0030] Reference numerals:

[0031] 1. Suspension valve

[0032] 2. Valve stem

[0033] 3. The first sealing ring

[0034] 4. Second sealing ring

[0035] 5. The third sealing ring

[0036] 6. Valve body

[0037] 7. Air Inlet

[0038] 8. Inflatable port

[0039] 9. Fixed end

[0040] 10. Connection terminal

[0041] 11. Spring

[0042] 12. Pull the wire

[0043] 13. Seat

[0044] 14. Seat lower frame

[0045] 15. Seat upper frame

[0046] 16. Fast rise and fall switch DETAILED DESCRIPTION

[0047] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0048] Embodiment 1:

[0049] According to one embodiment of the present invention, a suspension valve 1 is designed. Figure 1 The three-dimensional structure diagram of the suspension valve is shown. Figure 2 The explosion diagram of the suspension valve is shown in FIG. Figure 1 and Figure 2 As shown, the floating valve 1 includes a valve stem 2, a first sealing ring 3, a second sealing ring 4, a third sealing ring 5, a valve body 6, an air inlet 7, an air charging port 8, a fixed end 9, a connecting end 10, a spring 11 and a pull wire 12;

[0050] Specifically, the valve body 6 is a special hollow structure, the inner diameters of the two ends of the valve body 6 are the largest, the inner diameter of the middle of the valve body 6 is the smallest, and the connection between the largest inner diameter part of the valve body 6 and the smallest inner diameter part of the valve body 6 is a hollow truncated cone structure;

[0051] Specifically, the first sealing ring 3 is arranged on the valve stem 2, and the outer diameter of the first sealing ring 3 is slightly larger than the maximum inner diameter of the valve body 6, so that the gas on both sides of the first sealing ring 3 can be completely isolated;

[0052] Specifically, the second sealing ring 4 is arranged on the valve stem 2, and the outer diameter of the second sealing ring 4 is slightly larger than the minimum inner diameter of the valve body 6, and the outer diameter of the second sealing ring 4 is smaller than the maximum inner diameter of the valve body 6. This structural design can ensure that the second sealing ring 4 isolates the flow of gases on both sides when it reaches the minimum inner diameter of the valve body 6, and the gases on both sides can flow to each other when the second sealing ring 4 is away from the minimum inner diameter of the valve body 6;

[0053] Specifically, the third sealing ring 5 is arranged on the valve stem 2, and the third sealing ring 5 and the second sealing ring 4 are the same sealing rings arranged at different positions.

[0054] It can be seen that compared with the existing suspension valve, the suspension valve has a very simple structure and requires very few components.

[0055] In some embodiments of the present invention, Figure 1 As shown, the fixed end 9 is a special structure, which can be changed according to actual conditions. The fixed end 9 is used to fix the valve body 6, the connecting end 10, the spring 11 and the pull wire 12. The special structure at the bottom of the fixed end 9 can also be used to limit the maximum displacement of the valve stem 2 along the axial direction.

[0056] It can be seen that the suspension valve itself is provided with a fixed end, which can be connected to other large components to prevent the suspension valve from being damaged during use and improve the stability of the suspension valve.

[0057] In some embodiments of the present invention, Figure 1 As shown, the air inlet 7 is connected to an air source to provide gas, and the inflation port 8 is connected to a working element to realize inflation.

[0058] It can be seen that the suspension valve can complete the inflation of the working element under certain conditions.

[0059] In some embodiments of the present invention, Figure 3 The cross-sectional view of the suspension valve in the equilibrium position is shown in FIG. Figure 3 As shown, when the spring 11 and the pull wire 12 are not operated or subjected to any external force, the pressure exerted by the gas on the valve stem 2 is equal to the elastic force exerted by the spring 11 on the valve stem 2. At this time, the valve stem 2 is in a balanced position, and the gas in the air inlet 7 is restricted by the second sealing ring 4 and cannot enter the inflation port 8 to complete inflation. The gas in the inflation port 8 is restricted by the third sealing ring 5 and cannot reach the top of the valve body 6 to complete exhaust.

[0060] It can be seen that when no external force is applied to the valve stem, the floating valve will float at a certain height without inflating or exhausting air.

[0061] In some embodiments of the present invention, Figure 4 The cross-sectional view of the suspension valve in the exhaust state is shown in FIG. Figure 4 As shown, when an upward force is applied to the spring 11, the valve stem 2 is pulled upward by the spring 11 and deviates from the equilibrium position. At this time, the second sealing ring 4 restricts the gas in the air inlet 7 from entering the inflation port 8. The third sealing ring 5 is far away from the minimum outer diameter of the valve body 6 and cannot restrict the gas in the inflation port 8 from being discharged from the top of the valve body 6. The suspension valve 1 completes the exhaust.

[0062] It can be seen that when an upward external force acts on the spring, the spring will drive the valve stem and the sealing ring above it to move upward and deviate from the equilibrium position. Since the third sealing ring is far away from the place with the smallest outer diameter of the valve body, the gas in the inflation port is exhausted through the top of the valve body.

[0063] In some embodiments of the present invention, Figure 5 A cross-sectional view of the suspended valve in the inflated state is shown. Figure 5 As shown, when a downward force is applied to the spring 11, the valve stem 2 is squeezed by the spring 11 and moves downward and deviates from the equilibrium position. The second sealing ring 4 cannot restrict the gas in the air inlet 7 from entering the inflation port 8. The third sealing ring 5 restricts the gas in the inflation port 8 from being discharged from the bottom of the valve body 6, and the floating valve 1 completes inflation.

[0064] It can be seen that when a downward external force acts on the spring, the spring will drive the valve stem and the sealing ring above it to move downward and deviate from the equilibrium position. Since the second sealing ring is far away from the place where the valve body has the smallest outer diameter, the gas in the air inlet is inflated after passing through the valve body and the inflation port.

[0065] In some embodiments of the present invention, Figure 3 As shown, when the spring 11 changes from a stressed state to a non-stressed state, the spring 11 gradually returns to a balanced position, and the valve stem 2 returns to a balanced position under the action of the spring 11. The second sealing ring 4 limits the gas in the air inlet 7 from entering the inflation port 8, and the third sealing ring 5 limits the gas in the inflation port 8 from being discharged from the top of the valve body 6, and the floating valve 1 completes the resetting.

[0066] It can be seen that when the external force acting on the spring disappears, the spring will drive the valve stem and the sealing ring thereon to return to the equilibrium position. At this time, the second sealing ring and the third sealing ring will respectively reach the place with the smallest outer diameter of the valve body, hindering the gas flow of the entire valve body. At this time, the valve body is neither inflated nor exhausted.

[0067] In some embodiments of the present invention, Figure 4As shown, when the pull wire 12 is pulled, the valve stem 2 is forced to move upward rapidly, the second sealing ring 4 limits the gas in the air inlet 7 from entering the inflation port 8, and the third sealing ring 5 cannot limit the gas in the inflation port 8 from being discharged from the top of the valve body 6, and the suspension valve 1 completes rapid exhaust.

[0068] It can be seen that the function of the pull wire is similar to that of a spring, except that the pull wire can quickly move the valve stem upward, so that the suspension valve can be quickly exhausted.

[0069] Embodiment 2:

[0070] According to another embodiment of the present invention, a seat 13 is designed. Figure 6 The connection diagram between the suspension valve and the seat is shown. Figure 6 As shown, the seat 13 includes the above-mentioned suspension valve 1, the fixed end 9 is connected to the seat lower frame 14, the end of the spring 11 is connected to the seat upper frame 15, and the pull wire 12 is connected to the speed increase and decrease switch 16.

[0071] It can be seen that the suspension valve can be applied to seats.

[0072] In some embodiments of the present invention, Figure 3 , 4 As shown in FIGS. 5 and 6 , the suspension valve 1 switches back and forth between the inflated state, the exhausted state, and the reset state according to the different motion states of the seat 13 to complete the suspension;

[0073] Specifically, when the seat 13 moves upward away from the equilibrium position, such as when bumping upward on an uneven road, the seat upper frame 15 drives the spring 11 to move upward, and the suspension valve 1 exhausts air to make the seat 13 drop to the equilibrium position;

[0074] Specifically, when the seat 13 moves downward away from the equilibrium position, such as when bumping downward on an uneven road, the seat lower frame 14 drives the spring 11 to move downward, and the suspension valve 1 is inflated to raise the seat 13 to the equilibrium position;

[0075] Specifically, when the seat 13 needs to be quickly exhausted and descended to the equilibrium position or below the equilibrium position, the quick-ascending and quick-descending switch 16 can control the pull wire 12 to move upward quickly, the suspension valve 1 quickly exhausts gas, and the seat 13 completes the rapid descent.

[0076] It can be seen that after the seat is equipped with the suspension valve, when encountering rugged and bumpy roads, the inflation and exhaust of the car seat can be adjusted at any time to keep the seat at a rough height.

[0077] To sum up, the design of the suspension valve is simplified as much as possible, which not only does not make the suspension valve lose its suspension function, but also makes the suspension valve have a rapid descent function. At the same time, the simple structural design greatly reduces the production cost. The absence of the traditional complex structure is conducive to batch and large-scale production. In the subsequent assembly and later maintenance, the technical requirements are not high, so the required costs will also be greatly reduced. The seat equipped with the suspension valve has a suspension function, which can always keep the seat at a rough height on a bumpy road, giving the user a comfortable experience.

[0078] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A suspension valve, It is characterized in that The suspension valve comprises a valve stem, a first sealing ring, a second sealing ring, a third sealing ring, a valve body, an air inlet, an air charging port, a fixed end, a connecting end, a spring and a pull wire; The valve body is a special hollow structure, the inner diameters of the two ends of the valve body are the largest, the inner diameter of the middle of the valve body is the smallest, and the connection between the largest inner diameter part of the valve body and the smallest inner diameter part of the valve body is a hollow truncated cone structure; The first sealing ring is arranged on the valve stem, and the outer diameter of the first sealing ring is slightly larger than the maximum inner diameter of the valve body; The second sealing ring is arranged on the valve stem, the outer diameter of the second sealing ring is slightly larger than the minimum inner diameter of the valve body, and the outer diameter of the second sealing ring is smaller than the maximum inner diameter of the valve body; The third sealing ring is arranged on the valve stem, and the third sealing ring and the second sealing ring are the same sealing ring.

2. The suspension valve according to claim 1, It is characterized in that The fixed end is a special structure, and is used to fix the valve body, the connecting end, the spring and the pull wire. The fixed end can also be used to limit the maximum displacement of the valve stem along the axial direction.

3. The suspension valve according to claim 1, It is characterized in that The air inlet is connected to an air source to provide gas, and the inflation port is connected to a working element to realize inflation.

4. The suspension valve according to claim 1, It is characterized in that When the spring and the pull wire are not operated, the pressure exerted by the gas on the valve stem is equal to the elastic force exerted by the spring on the valve stem, the valve stem is in a balanced position, the gas in the air inlet is restricted by the second sealing ring and cannot be inflated, and the gas in the inflation port is restricted by the third sealing ring and cannot be exhausted.

5. The suspension valve according to claim 1, It is characterized in that When an upward force is applied to the spring, the valve stem is pulled upward by the spring and deviates from the equilibrium position. The second sealing ring restricts the gas in the air inlet from entering the inflation port. The third sealing ring cannot restrict the gas in the inflation port from being discharged from the top of the valve body. The suspension valve completes the exhaust.

6. The suspension valve according to claim 1, It is characterized in that When a downward force is applied to the spring, the valve stem is squeezed by the spring and moves downward, deviating from the equilibrium position. The second sealing ring cannot restrict the gas in the air inlet from entering the inflation port. The third sealing ring restricts the gas in the inflation port from being discharged from the bottom of the valve body, and the suspension valve completes inflation.

7. The suspension valve according to claim 1, It is characterized in that When the spring changes from a stressed state to a non-stressed state, the spring gradually returns to a balanced position, and the valve stem returns to a balanced position under the action of the spring. The second sealing ring limits the gas in the air inlet from entering the inflation port, and the third sealing ring limits the gas in the inflation port from being discharged from the top of the valve body, and the suspension valve completes resetting.

8. The suspension valve according to claim 1, It is characterized in that When the pull wire is pulled, the valve stem is forced to move upward rapidly, the second sealing ring limits the gas in the air inlet from entering the inflation port, and the third sealing ring cannot limit the gas in the inflation port from being discharged from the top of the valve body, and the suspension valve completes rapid exhaust.

9. A seat, It is characterized in that The seat comprises the suspension valve according to any one of claims 1 to 8, the fixed end is connected to the lower frame of the seat, the spring end is connected to the upper frame of the seat, and the pull wire is connected to the quick-ascending and quick-descending switch.

10. The seat as claimed in claim 9, It is characterized in that The suspension valve switches back and forth between the three states of inflation, exhaust and reset according to the different motion states of the seat to complete the suspension; When the seat moves upward away from the equilibrium position, the seat upper frame drives the spring to move upward, and the suspension valve exhausts air to make the seat drop to the equilibrium position; When the seat moves downward away from the equilibrium position, the seat lower frame drives the spring to move downward, and the suspension valve is inflated to make the seat rise to the equilibrium position; When the seat needs to be rapidly lowered to a balanced position, the rapid ascent and descent switch can control the pull line to rapidly move upward, the suspension valve rapidly discharges gas, and the seat completes rapid descent.

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