A new type of button graded adjustable pressure check valve

Abstract

The present invention relates to the field of valve technology, and discloses a new type of button-type graded adjustable pressure-type one-way valve, comprising: a valve body and a valve core, the valve body is provided with a valve cavity and a liquid inlet and a liquid outlet both connected to the valve cavity; the valve core is arranged in the valve cavity, and the valve core can slide up and down in the valve cavity to block the liquid inlet; an adjusting device is arranged in the valve cavity and is located above the valve core, comprising a button and an upper adjusting member and a lower adjusting member both driven by the button; an elastic member is arranged between the lower adjusting member and the valve core; the button can drive the lower adjusting member to move up and down, thereby adjusting the gear position of the one-way valve; the button can drive the upper adjusting member and the lower adjusting member to move up and down together, thereby adjusting the conduction pressure of the one-way valve. The advantages of the present invention are that the graded adjustable one-way valve of the present invention can safely, accurately, efficiently and quickly adjust the one-way valve pressure, providing convenience for the debugging and use of various hydraulic equipment; and the gear position and conduction pressure of the valve can be adjusted manually.

Description

Technical Field

[0001] The invention relates to the technical field of valves, and in particular to a novel button-type graded adjustable pressure-type one-way valve. Background Art

[0002] Through market research, it is found that the one-way valves on the market currently have defects such as non-adjustable pressure, adjustable pressure but requiring special tools, difficult replacement and maintenance, large size, poor versatility, and cumbersome operation when frequently adjusting pressure. Therefore, it is necessary to solve the problem of accurate and fast adjustable pressure of the one-way valve, convenient maintenance, versatility, tool-free operation under special circumstances, and easy pressure adjustment.

[0003] For example, the patent number "CN 208221681" discloses an adjustable pressure one-way valve for a fire-fighting negative pressure proportional mixing device, comprising a valve body with a valve cavity therein, a one-way sealing valve core, a threaded adjustment plate and a spring arranged in the valve cavity, a liquid suction inlet arranged at the front end of the valve body and connected to the valve cavity, and a joint detachably connected to the rear end of the valve body; the joint is axially penetrated by a liquid suction outlet connected to the valve cavity, the inner wall of the valve cavity is provided with an internal thread, the threaded adjustment plate is provided with an external thread matching the internal thread and is threadedly connected to the inner wall of the valve cavity, the threaded adjustment plate is penetrated by a through hole for facilitating the passage of gas, the spring is located between the threaded adjustment plate and the one-way sealing valve core, and is used to push the one-way sealing valve core to block the liquid suction inlet.

[0004] When the conduction pressure of the one-way valve needs to be adjusted, the joint needs to be disassembled, and the compression degree of the spring needs to be adjusted by changing the screwing depth of the threaded adjustment plate through external tools (needle-nosed pliers, etc.), thereby adjusting the conduction pressure of the one-way valve. The operation is complicated, and the one-way valve cannot adjust the pressure in multiple gears.

[0005] In order to solve the above problems existing in the existing one-way valve, it is necessary to design a new type of graded adjustable pressure one-way valve which can manually adjust the pressure and switch different gears. Summary of the invention

[0006] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art and to provide a new type of graded adjustable pressure-type one-way valve which is manually adjustable and capable of changing different gears.

[0007] The technical solution adopted by the present invention to solve the technical problem is to propose a new type of button graded adjustable pressure type one-way valve, which is characterized by comprising:

[0008] A valve body and a valve core, wherein the valve body is provided with a valve cavity and a liquid inlet and a liquid outlet both connected to the valve cavity; the valve core is arranged in the valve cavity, and the valve core can slide up and down in the valve cavity to block the liquid inlet;

[0009] The regulating device is arranged in the valve cavity and above the valve core, and includes a button and an upper regulating member and a lower regulating member both driven by the button; an elastic member is arranged between the lower regulating member and the valve core; the button can drive the lower regulating member to move up and down, thereby adjusting the gear position of the one-way valve; the button can drive the upper regulating member and the lower regulating member to move up and down together, thereby adjusting the conduction pressure of the one-way valve.

[0010] In the above-mentioned new type of button graded adjustable pressure-type one-way valve, an internal thread is arranged on the inner wall of the valve body; an external thread matching the internal thread is arranged on the upper adjusting member, so that the upper adjusting member can move up and down in the valve body.

[0011] In the above-mentioned new type of button graded adjustable pressure type one-way valve, the upper adjusting member includes an inner ring surface and an outer ring surface; the outer thread is on the outer ring surface, and the inner ring surface is provided with a plurality of deep grooves and shallow grooves, and the deep grooves and shallow grooves are distributed at intervals;

[0012] A plurality of tooth groups are arranged on the lower end surface of the upper adjusting member, wherein the tooth groups include first latching teeth and second latching teeth, and the first latching teeth and the second latching teeth are spaced apart.

[0013] In the above-mentioned novel button graded adjustable pressure type one-way valve, a spring hole is opened in the middle of the lower adjusting member, and the elastic member is located in the spring hole;

[0014] A plurality of convex strips matching with the deep grooves are arranged on the outer side of the lower adjusting member, and a tooth surface is arranged on the top of the convex strips.

[0015] In the above-mentioned new type of button graded adjustable pressure-type one-way valve, the button includes a button head and a push rod, the button head is located above the valve body; one end of the push rod is connected to the button head, and the other end extends into the valve cavity;

[0016] One end of the push rod in the valve cavity is provided with a circle of downward driving teeth, and the driving teeth are pressed against the tooth surface of the convex strip; and each driving tooth is provided with a convex block on the outer side, and the convex block is installed in the deep groove and the shallow groove.

[0017] In the above-mentioned novel button graded adjustable pressure-type one-way valve, the valve cavity is provided with a conical surface near the liquid inlet end;

[0018] The valve core comprises a sealing head and a positioning rod connected to the sealing head; the elastic member is sleeved on the positioning rod; when the valve core blocks the liquid inlet, the sealing head abuts against the conical surface.

[0019] In the above-mentioned novel button graded adjustable pressure-type one-way valve, the end surface of the sealing head close to the conical surface of the valve cavity is hemispherical or conical.

[0020] In the above-mentioned new type of button graded adjustable pressure-type one-way valve, a positioning column is arranged on the button head, and a dial is sleeved on the positioning column; the dial can rotate with the rotation of the button head.

[0021] In order to solve the above problems, the present invention also proposes a novel control method of a button graded adjustable pressure type one-way valve, which is characterized by comprising:

[0022] S1. Shifting of the one-way valve: Press the button to shift the one-way valve from high gear to low gear or from low gear to high gear;

[0023] S2. Pressure adjustment of the one-way valve: Rotate the button to drive the upper and lower adjusting parts to move up and down as a whole, thereby changing the compression amount of the elastic part.

[0024] In the above-mentioned novel control method of a button graded adjustable pressure type one-way valve, the shifting of the one-way valve in S1 includes shifting from low gear to high gear and from high gear to low gear;

[0025] The low gear to high gear shifting is: pressing the button, thereby making the lower adjusting member abut against the lower end of the upper adjusting member, and the compression amount of the elastic member increases;

[0026] The high gear to low gear shifting is: pressing a button, thereby causing the lower adjusting member to move into the upper adjusting member, and the compression amount of the elastic member to decrease.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The button-graded adjustable pressure-type one-way valve of the present invention can not only adjust the conduction pressure by a button, but also has different gears to choose from, so as to meet the user's high-pressure or low-pressure usage requirements; it is particularly used in various special situations where there are no available tools and the pressure needs to be adjusted quickly and conveniently; the switch between high gear and low gear can be achieved by directly pressing the button; the conduction pressure of the one-way valve can be precisely adjusted by rotating the button; and no tools are required in these two processes, which simplifies the user's use; and the overall structure of the one-way valve is simple, the use is safe, and the adjustment is precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 for Figure 1 Explosion diagram;

[0031] Figure 3 It is a structural schematic diagram of the one-way valve in high gear with the valve body removed;

[0032] Figure 4 It is a structural schematic diagram of the one-way valve when it is in low gear, with the valve body removed;

[0033] Figure 5 is a structural schematic diagram of the upper adjusting member;

[0034] Figure 6 for Figure 5 A schematic diagram of the structure from another perspective;

[0035] Figure 7 is a front schematic diagram of the upper adjustment member;

[0036] Figure 8 for Figure 7 A top view of

[0037] Fig. 9 It is a structural schematic diagram of the valve body;

[0038] Fig.10 for Fig. 9 A half-section diagram of

[0039] Fig.11 It is a schematic diagram of the structure of the button;

[0040] Fig.12 for Fig.11 A half-section diagram of

[0041] Fig.13 Schematic diagram of the structure of the button head;

[0042] Fig.14 Schematic diagram of the structure of the push rod;

[0043] Fig.15 is a structural schematic diagram of a lower adjusting member;

[0044] Fig.16 for Fig.15 A half-section diagram of

[0045] Fig.17 A structural schematic diagram of a valve core;

[0046] Fig.18 This is another structural schematic diagram of the valve core.

[0047] In the figure, 1, valve body; 10, valve cavity; 11, liquid inlet; 12, liquid discharge port; 13, internal thread; 14, conical surface; 2, valve core; 20, sealing head; 21, positioning rod; 22, spherical end surface; 23, conical end surface; 3, button; 30, button head; 302, positioning column; 31, push rod; 310, driving tooth; 311, protrusion; 4, upper adjusting member; 40, outer annular surface; 41, inner annular surface; 42, first latching tooth; 43, second latching tooth; 44, upper limit wall; 5, lower adjusting member; 50, spring hole; 51, convex strip; 510, tooth surface; 52, extension rod; 6, elastic member; 7, dial. DETAILED DESCRIPTION

[0048] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the present invention is not limited to these embodiments.

[0049] like Figure 1-4 As shown, a new type of button graded adjustable pressure-type one-way valve includes: a valve body 1 and a valve core 2; the valve body 1 is provided with a valve cavity 10 and a liquid inlet 11 and a liquid outlet 12 both connected to the valve cavity 10; the valve core 2 is arranged in the valve cavity 10, and the valve core 2 can slide up and down in the valve cavity 10 to block the liquid inlet 11.

[0050] The adjusting device is arranged in the valve cavity 10 and above the valve core 2, and includes a button 3 and an upper adjusting member 4 and a lower adjusting member 5 both driven by the button 3; an elastic member 6 is arranged between the lower adjusting member 5 and the valve core 2; the button 3 can drive the lower adjusting member 5 to move up and down, thereby adjusting the gear position of the one-way valve; the button 3 can drive the upper adjusting member 5 and the lower adjusting member 6 to move up and down together, thereby adjusting the conduction pressure of the one-way valve; the central axes of all components coincide, among which the elastic member 6 is preferably but not limited to a spring.

[0051] like Fig. 9 and Fig.10 As shown, the valve body 1 is provided with a valve cavity 10 and a liquid inlet 11 and a liquid discharge port 12 which are both connected to the valve cavity 10, and the number of the liquid discharge port 12 is not limited to one; an internal thread 13 is provided on the inner wall of the valve body 1; a conical surface 14 is provided at the end of the valve cavity 10 close to the liquid inlet 11; when the valve core 2 blocks the liquid inlet 11, the conical surface 14 not only guides the valve core 2, but also prevents the sealing head 20 from tilting, thereby facilitating sealing.

[0052] like Fig.17 and Fig.18 As shown, the valve core 2 is arranged in the valve cavity 10, and the valve core 2 can slide up and down in the valve cavity 10 to block the liquid inlet 11. The valve core 2 includes a sealing head 20 and a positioning rod 21 connected to the sealing head 20; an elastic member 6 is sleeved on the positioning rod 21; when the valve core blocks the liquid inlet 11, the sealing head 20 abuts against the conical surface 14. Preferably, the end surface of the sealing head 20 close to the conical surface 14 of the valve cavity is hemispherical or conical, that is, the sealing head 20 has two forms, one is a sealing head 20 with a spherical end surface 22, and the other is a sealing head 20 with a conical end surface 23.

[0053] like Figure 5-Figure 8As shown, the upper adjusting member 4 is provided with an external thread 400 that matches the internal thread 13, so that the upper adjusting member 4 can move up and down in the valve body 1. The upper adjusting member 4 includes an inner ring surface 41 and an outer ring surface 40; the external thread 400 is on the outer ring surface 40, and a plurality of deep grooves 410 and shallow grooves 411 are provided on the inner ring surface 41, and the deep grooves 410 and the shallow grooves 411 are distributed at intervals; specifically, the number of the deep grooves 410 and the shallow grooves 411 is optimal but not limited to four; a plurality of tooth groups are provided on the lower end surface of the upper adjusting member 4, and the tooth groups include a first latch tooth 42 and a second latch tooth 43, and the first latch tooth 42 and the second latch tooth 43 are distributed at intervals.

[0054] like Fig.15 and Fig.16 As shown, a spring hole 50 is provided in the middle of the lower adjusting member 5, and the elastic member 6 is in the spring hole 50; one end of the spring is sleeved on the positioning rod 21 of the valve core 2, and the other end of the spring is set in the spring hole 50; the positioning rod 21 can play a good guiding role, which can prevent the spring from being unstable and the sealing head 20 from being skewed to cause a loose seal. The outer side of the lower adjusting member 5 is provided with a plurality of convex strips 51 that cooperate with the deep groove 410. Preferably, the number of the convex strips 51 is optimal but not limited to four; and a tooth surface 510 is provided on the top of the convex strip 51. The lower adjusting member 5 also includes an extension rod 52, and when the one-way valve is in resistance, the extension rod 52 extends into the lower end of the button 3.

[0055] like Figure 11-Figure 14 As shown, the button 3 includes a button head 30 and a push rod 31, the button head 30 is located above the valve body 1; one end of the push rod 31 is connected to the button head 30, and the other end of the push rod 31 extends into the valve cavity 10; the button head 30 and the push rod 31 can be connected by internal and external hexagons, or by threads; so as to facilitate the replacement of the dial 7; one end of the push rod 31 in the valve cavity 10 is provided with a circle of downward driving teeth 310, the driving teeth 310 abut against the tooth surface 510 of the convex strip 51; and each driving tooth 310 is provided on the outer side There are protrusions 311, preferably, the number of protrusions 311 is optimal but not limited to eight; the protrusions 311 are installed in the deep groove 410 and the shallow groove 411, and the protrusions 311 can slide up and down in the deep groove 410 and the shallow groove 411, and the button head 30 is provided with a positioning column 302, and the positioning column 302 is sleeved with a dial 7; the dial 7 can rotate with the rotation of the button head 30; specifically, the button head 30 is subjected to surface roughening treatment to improve the surface roughness of the button head 30, so as to facilitate the manual rotation of the button 3. The positioning column 302 under the button 3 is designed with an outer hexagonal shape, which cooperates with the inner hexagonal hole of the dial 7, so that the dial 7 can rotate with the rotation of the button 3.

[0056] Specifically, since the protrusion 311 below the button 3 matches the deep groove 410 and the shallow groove 411 on the upper adjusting member 4, and the protrusion 311 is set at the middle position of the driving tooth 310, the tooth tip of the driving tooth 310 on the lower end face of the push rod of the button 3 is always positioned at the middle position of the deep groove 410; when in the low pressure gear, the protrusion 51 of the lower adjusting member 5 is inserted into the deep groove 410 of the upper adjusting member 4, and the driving tooth 310 of the button 3 presses against the middle position of the tooth surface 510 of the lower adjusting member 5, so that it can no longer move upward. Due to the restriction of the deep groove 410, the lower adjusting member 5 cannot rotate, and the one-way valve is positioned in the low pressure gear. When the lower adjusting member 5 is separated from the deep groove 410, since the driving tooth 310 presses against the middle position of the tooth surface 510, in the absence of the constraint of the deep groove 410, the driving tooth 310 will force the lower adjusting member 5 to rotate until the top of the tooth surface 510 presses into the tooth root of the driving tooth 310. Therefore, when the button 3 is pressed to switch the gear, no matter whether the one-way valve is in the high-pressure gear or the low-pressure gear, the driving tooth 310 of the button 3 can drive the lower adjusting member 5 to rotate when the convex strip 51 disengages from the deep groove 410, thereby forcing the convex strip 51 to be engaged in the deep groove 410 or the tooth surface 510 of the convex strip to press against the second engaging tooth 43; the principle is the same and will not be described in detail here.

[0057] Preferably, the dial 7 is used to mark the scale, and the dial 7 is made of magnetic material so that it can be adsorbed on the valve body 1. When it is worn, it is easy to replace without additional tools, and a simple and easy visual operation of pressure change is realized, which saves manpower and material resources and improves production efficiency. Since the spring coefficient K can be measured, according to Hooke's law F = KX, where K is the spring coefficient, X is the deformation of the spring, and F is the force on the spring; the pressure change corresponding to the spring deformation can be calculated. By calculation, the pressure change when rotating the button 3 and the graded pressure change when toggling the button 3 can be obtained, so that the value can be engraved on the dial 7, and the pressure change caused by rotating the button 3 and pressing the button 3 can be read.

[0058] Preferably, the grading of the one-way valve of the present invention is not limited to the two pressure gradings of high pressure gear and low pressure gear, and multiple levels can be set according to actual needs to achieve the effect of multi-stage pressure regulation for user use.

[0059] During operation, when the one-way valve needs to shift gears: press button 3 to change the one-way valve from high gear to low gear, and continue to press button 3 to change the one-way valve from low gear to high gear; wherein, the shifting of the one-way valve includes low gear to high gear and high gear to low gear; low gear to high gear: press button 3, button 3 drives the lower adjusting member 5 to move downward, the convex strip 51 is separated from the deep groove 410, and button 3 makes the lower adjusting member 5 abut against the lower end of the upper adjusting member 4, so that the compression amount of the elastic member 6 increases; so the pressure required to open the one-way valve increases. High gear to low gear: press button 3, button 3 drives the lower adjusting member 5 to move downward, so that the lower adjusting member 5 no longer abuts against the lower end of the upper adjusting member 4, and the convex strip 51 slides into the deep groove 410 again. Since the spring has an upward force on the lower adjusting member 5, the lower adjusting member moves into the upper adjusting member, and the compression amount of the elastic member decreases; so the pressure required to open the one-way valve decreases. Whether in the high-pressure gear or the low-pressure gear, when the one-way valve needs to adjust the pressure: rotate the button 3 by hand, the external thread 400 of the upper adjusting part 4 spirally rises or falls on the internal thread 13 of the valve body 1, and the button 3 drives the upper adjusting part 4 and the lower adjusting part 5 to move up and down as a whole, thereby changing the compression amount of the spring, and then precisely adjusting the conduction pressure of the one-way valve.

[0060] The one-way valve of the present invention can be widely used in many fields, such as construction, fire fighting, aviation, robots, etc., and is particularly suitable for hydraulic devices and equipment, such as high-pressure pumps, jacks, shearing pliers, punching machines, etc. The overall structure of the one-way valve is simple, easy to use, and has low maintenance costs. Pressing the button 3 drives the upper adjustment member 4 to engage or withdraw the second locking tooth 43 of the lower adjustment member 5, thereby realizing rapid graded adjustment of the conduction pressure of the one-way valve. The one-way valve pressure can be adjusted safely, accurately, efficiently, and quickly.

[0061] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A new type of button graded adjustable pressure check valve, characterized in that: Included are: A valve body and a valve core, wherein the valve body is provided with a valve cavity and a liquid inlet and a liquid outlet both connected to the valve cavity; the valve core is arranged in the valve cavity, and the valve core can slide up and down in the valve cavity to block the liquid inlet; The regulating device is arranged in the valve cavity and above the valve core, and includes a button and an upper regulating member and a lower regulating member both driven by the button; an elastic member is arranged between the lower regulating member and the valve core; the button can drive the lower regulating member to move up and down, thereby adjusting the gear position of the one-way valve; the button can drive the upper regulating member and the lower regulating member to move up and down together, thereby adjusting the conduction pressure of the one-way valve; Wherein, the inner wall of the valve body is provided with an internal thread; the upper adjusting member is provided with an external thread matching the internal thread, so that the upper adjusting member can move up and down in the valve body; The upper adjusting member comprises an inner ring surface and an outer ring surface; the outer thread is on the outer ring surface, a plurality of deep grooves and shallow grooves are provided on the inner ring surface, and the deep grooves and shallow grooves are distributed at intervals; a plurality of tooth groups are provided on the lower end surface of the upper adjusting member, the tooth groups comprise a first latching tooth and a second latching tooth, and the first latching tooth and the second latching tooth are distributed at intervals; The outer side of the lower adjusting member is provided with a plurality of convex strips cooperating with the deep groove, and the top of the convex strips is provided with a tooth surface; The button includes a button head and a push rod, wherein the button head is located above the valve body; one end of the push rod is connected to the button head, and the other end extends into the valve cavity; a circle of downwardly facing driving teeth is arranged at one end of the push rod located in the valve cavity, and the driving teeth are pressed against the tooth surface of the convex strip; and a convex block is arranged on the outer side of each driving tooth, and the convex block is installed in the deep groove and the shallow groove; The switch between high-range and low-range conduction pressures can be realized by directly pressing the button, and the conduction pressure of the one-way valve can be precisely adjusted by rotating the button; Wherein, a spring hole is opened in the middle of the lower adjusting member, and the elastic member is located in the spring hole; The valve cavity is provided with a conical surface near the liquid inlet end; the valve core comprises a sealing head and a positioning rod connected to the sealing head; the elastic member is sleeved on the positioning rod; when the valve core blocks the liquid inlet, the sealing head abuts against the conical surface; The end surface of the sealing head close to the conical surface of the valve cavity is hemispherical or conical.

2. A new type of button graded adjustable pressure check valve according to claim 1, characterized in that: The button head is provided with a positioning column, and the positioning column is sleeved with a dial; the dial can rotate with the rotation of the button head.

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