A linear flow valve core and a gas cock valve

Abstract

The present invention aims to provide a valve core and a gas cock valve with a linear flow regulation function, which has the characteristics of a more stable and gentle flow regulation curve. The valve core includes an outer environmental protection fire groove, an outer ring flow regulation group, an outer ring large fire channel and an inner ring flow regulation group. The outer ring large fire channel is arranged on one side of the outer ring flow regulation group. The outer environmental protection fire groove, the inner ring flow regulation group and the outer ring flow regulation group are arranged in coordination. The outer environmental protection fire groove includes an outer ring air guide groove and an outer environmental protection fire hole provided on the outer ring air guide groove. The lower part of the valve core is provided with an inner cavity with an opening facing downward. The outer ring large fire channel and the outer environmental protection fire hole are both connected to the inner cavity. When the outer ring flow regulation group is connected to the outer ring air outlet channel, the outer environmental protection fire hole is connected to the outer ring air outlet channel. The present invention is applied to the technical field of valve core and gas valve structure.

Description

Technical Field

[0001] The invention relates to the technical field of a valve core and a gas valve structure, and in particular to a linear flow valve core and a gas cock valve. Background Art

[0002] Most of the solutions currently available on the market use holes or slots of varying sizes machined on the valve core. When the valve core is rotated, the holes or slots of varying sizes are alternately connected to the outlet channel to achieve smoother flow regulation. In this solution, if there is a problem with the connection between the outlet channel and the holes or slots during the rotation of the valve core, it is easy to cause fluctuations in the flow curve and even cause the outer ring fire of the burner to be temporarily extinguished.

[0003] The Chinese patent with publication number CN110206915A discloses a gas-fired

[0004] A valve and a gas stove, the gas valve includes a valve core, a valve housing assembly, an adjusting plate and a fixing plate, the valve core is provided with an air inlet channel and a valve core air outlet channel connected to the air inlet channel, the valve core air outlet channel is arranged corresponding to the valve body air outlet channel of the valve housing assembly, the valve core is rotatably arranged in the valve core installation cavity of the valve housing assembly, the fixing plate is arranged at the air inlet end of the valve core and an adjusting plate is arranged between the two; the adjusting plate is provided with a first air inlet hole, the fixing plate is provided with a second air inlet hole, and the overlapping area of ​​the first air inlet hole and the second air inlet hole is linearly adjusted by rotating the adjusting plate. In this patent scheme, the linear flow rate is controlled by changing the relative positions of the fixing plate and the adjusting plate, which has high requirements on the assembly process and has a relatively complex structure, and is not suitable for wide promotion. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a valve core and a gas cock with a linear flow regulation function, which have the characteristics of a more stable and gentle flow regulation curve.

[0006] The technical solution adopted by the present invention is:

[0007] A linear flow valve core includes a valve core, the valve core includes an outer environmental protection fire groove, an outer ring flow regulating group, an outer ring large fire channel and an inner ring flow regulating group, the outer ring large fire channel is arranged on one side of the outer ring flow regulating group, the outer environmental protection fire groove, the inner ring flow regulating group and the outer ring flow regulating group are arranged in coordination, the outer environmental protection fire groove includes an outer ring air guide groove and an outer environmental protection fire hole opened on the outer ring air guide groove, the lower part of the valve core is provided with an inner cavity with an opening facing downward, the outer ring large fire channel and the outer environmental protection fire hole are both communicated with the inner cavity, and when the outer ring flow regulating group is communicated with the outer ring air outlet channel, the outer environmental protection fire hole is communicated with the outer ring air outlet channel.

[0008] Furthermore, the outer ring flow regulating group includes a tail groove, a gradient groove and an outer ring channel, the tail groove, the gradient groove, the outer ring channel and the inner cavity are connected in sequence, the outer ring high fire channel is connected to the inner cavity, the depth of the gradient groove gradually becomes shallower along the direction from the outer ring channel to the tail groove, and on the outer surface of the valve core, the outer ring high fire channel is blocked from the outer ring channel.

[0009] Furthermore, the outer ring flow regulating group includes a plurality of flow regulating channels uniformly distributed laterally along the outer surface of the valve core, and on the outer surface of the valve core, the flow regulating channels are blocked from the outer ring large fire channels.

[0010] Furthermore, the inner ring flow regulating group includes an inner ring air guide groove, an inner ring large fire channel and a plurality of inner ring channels, the inner ring large fire channel is connected to the inner cavity, the plurality of inner ring channels are in relative structure and are respectively arranged on both sides of the inner ring air guide groove and the inner ring large fire channel, on the outer surface of the valve core, the inner ring air guide groove is blocked by the plurality of inner ring channels, and when the outer ring flow regulating group is connected to the outer ring air outlet channel, the inner ring air guide groove is connected to the inner ring air outlet channel.

[0011] Furthermore, the inner ring large fire channel is connected to one end of the inner ring air guide groove.

[0012] Furthermore, a small hole communicating with the inner cavity is provided on one end of the inner ring air guide groove, and on the outer surface of the valve core, the inner ring large fire channel is blocked from the inner ring air guide groove.

[0013] Furthermore, a connecting groove is connected between the inner ring air guide groove and the outer ring air guide groove.

[0014] The present invention also discloses a gas cock valve, comprising a valve core, a valve body, a valve stem, an upper cover and a ejector assembly, wherein the valve core is arranged in the valve body, the valve stem which is transmission-coordinated with the valve core is arranged on the upper cover, the ejector assembly is connected to the bottom of the valve stem, and the upper cover is arranged on the valve body.

[0015] Furthermore, the valve body has an air inlet, a valve core cavity, an outer ring air outlet passage connected to the outer ring air outlet, and an inner ring air outlet passage connected to the inner ring air outlet, and the valve core is cooperatively arranged in the valve core cavity.

[0016] Furthermore, an additional fire protection channel is provided on one side of the outer ring flow regulating group, and the additional fire protection channel is communicated with the inner cavity.

[0017] The present invention has the following beneficial effects:

[0018] Compared with the prior art, the present invention changes the gas flow of the outer ring air outlet by rotating the outer ring flow regulating group on the valve core, so that the gas flow reaches a linear change and increases or decreases linearly. This linear change in area causes the gas flow through the outer ring air outlet channel to also change linearly, showing that the flow control of the entire gas valve is linear and smoothly regulated, shortening the ineffective firepower regulation stage, meeting various cooking needs, and bringing convenience to users; because when the outer ring flow regulating group is connected to the outer ring air outlet channel, the outer ring fire hole is connected to The outer ring air outlet channel is connected, and the additional fire protection channel, the outer ring air guide groove and the outer fire protection channel provide a preset flow rate for the outer ring air outlet channel, so that the user can quickly adjust the firepower to a preset desired firepower value, such as the outer ring minimum fire state; in addition, since the outer ring flow regulation group is connected to the outer ring air outlet channel, the inner ring air guide groove is connected to the inner ring air outlet channel, that is, when the outer ring flow regulation group is linearly adjusted, the inner ring flow regulation group and the outer ring flow regulation group are connected through the inner cavity, thereby achieving the effect of synchronous regulation of the outer and inner rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the valve core in Embodiment 1 from a first viewing angle;

[0020] Figure 2 is a structural schematic diagram of the valve core in Embodiment 1 from a second viewing angle;

[0021] Figure 3 is a schematic structural diagram of the valve core in Embodiment 1 from a third viewing angle;

[0022] Figure 4 is a schematic structural diagram of the valve core in Embodiment 1 from a fourth viewing angle;

[0023] Figure 5 yes Figure 4 Sectional view of AA in the middle;

[0024] Figure 6 yes Figure 4 Cross-sectional view of CC;

[0025] Figure 7 yes Figure 4 Cross-sectional view of the middle BB;

[0026] Figure 8 is an exploded view of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the valve body;

[0028] Fig.10 is a schematic structural diagram of the valve core described in Example 2;

[0029] Fig.11 is a cross-sectional view of the valve core described in Example 2;

[0030] Fig.12 is a schematic structural diagram of the valve core described in Example 3;

[0031] Fig.13 is a cross-sectional view of the valve core described in Example 3;

[0032] Fig.14 It is a schematic diagram of the structure of the valve core described in Example 4. DETAILED DESCRIPTION

[0033] like Figures 1 to 9 As shown, in this embodiment 1, a linear flow valve core includes a valve core 1, and the valve core 1 includes an outer environmental protection fire groove 2, an outer ring flow regulating group 3, an outer ring large fire channel 4 and an inner ring flow regulating group 5, the outer ring large fire channel 4 is arranged on one side of the outer ring flow regulating group 3, the outer environmental protection fire groove 2, the inner ring flow regulating group 5, and the outer ring flow regulating group 3 are arranged in coordination, the outer environmental protection fire groove 2 includes an outer ring air guide groove 21 and an outer environmental protection fire hole 22 opened on the outer ring air guide groove 21, the lower part of the valve core 1 is provided with an inner cavity 11 with an opening facing downward, the outer ring large fire channel 4 and the outer environmental protection fire hole 22 are both communicated with the inner cavity 11, and when the outer ring flow regulating group 3 is connected to the outer ring air outlet channel 63, the outer environmental protection fire hole 22 is connected to the outer ring air outlet channel 63 When the outer ring flow regulating group is connected to the outer ring air outlet channel, the inner ring gas guide groove is connected to the inner ring air outlet channel, and the outer environmental protection fire hole is connected to the outer ring air outlet channel. When the valve core 1 is rotated to adjust the outer ring firepower, the gas can be automatically distributed to the outer ring air outlet channel 63 and the inner ring air outlet channel 64 through the outer environmental protection fire groove 2, the inner ring gas guide groove 51, and the connecting groove 55 inside the stopcock, thereby realizing synchronous adjustment of the inner and outer rings of the burner; the additional fire protection channel 23 can provide a preset flow rate for the outer ring air outlet channel 63 within a certain interval within the range of 0 degrees to 90 degrees, so that the user can easily and quickly adjust the firepower from the 90-degree maximum firepower position to the preset expected firepower value, such as the outer ring minimum fire state.

[0034] A preferred solution is, Figure 1 , Figure 2 and Figure 5As shown, the outer ring flow regulating group 3 includes a tail groove 31, a gradient groove 32 and an outer ring channel 33. The tail groove 31, the gradient groove 32, the outer ring channel 33 and the inner cavity 11 are connected in sequence, and the outer ring high fire channel 4 is connected to the inner cavity 11. The depth of the gradient groove 32 gradually becomes shallower from the outer ring channel 33 to the tail groove 31. On the outer surface of the valve core 1, the outer ring high fire channel 4 is blocked from the outer ring channel 33. The gas flow rate changes linearly through the gradient grooves 32 of different depths.

[0035] A preferred solution is, Figure 1 , Figure 2 , Figure 3 and Figure 7 The inner ring flow regulating group 5 shown includes an inner ring air guide groove 51, an inner ring high fire channel 52 and a plurality of inner ring channels 53. The inner ring high fire channel 52 is connected to the inner cavity 11. The plurality of inner ring channels 53 are in relative structure and are respectively arranged on both sides of the inner ring air guide groove 51 and the inner ring high fire channel 52. On the outer surface of the valve core 1, the inner ring air guide groove 51 is blocked by the plurality of inner ring channels 53; the inner ring high fire channel 52 is connected to one end of the inner ring air guide groove 51, and the inner ring air guide groove 51 is connected to the inner cavity 11 through the inner ring high fire channel 52. In this design, the gas flows into the inner cavity 11 through the inner ring air guide groove 51 and the inner ring high fire channel 52 to provide a preset flow value to the inner ring outlet.

[0036] A preferred solution is, Figure 8 and Fig. 9 As shown, the gas cock valve includes a valve core 1, a valve body 6, a valve stem 7, an upper cover 8 and a ejector assembly 9, the valve core 1 is arranged in the valve body 6, the valve stem 7 which is transmission-coordinated with the valve core 1 is arranged on the upper cover 8, the ejector assembly 9 is connected to the bottom of the valve stem 7, and the upper cover 8 is arranged on the valve body 6; the valve body 6 has an air inlet 61, a valve core cavity 62, an outer ring air outlet channel 63 connected to the outer ring air outlet, and an inner ring air outlet channel 64 connected to the inner ring air outlet, the valve core 1 is arranged in the valve core cavity 62, and in this design, the ejector assembly 9 is a common press-reset structure.

[0037] The difference between Example 2 and Example 1 is that:

[0038] like Fig.10 and Fig.11As shown, the outer ring flow regulating group 3 includes a plurality of flow regulating channels 34 uniformly distributed laterally along the outer surface of the valve core 1. On the outer surface of the valve core 1, the flow regulating channels 34 are blocked from the outer ring large fire channel 4. In this design, the gradient groove 32 is replaced by a plurality of uniformly distributed flow regulating channels 34 to control the linear change of the gas flow of the outer ring outlet channel 63 and smoothly adjust the flame.

[0039] The difference between Example 3 and Example 1 is that:

[0040] like Fig.12 and Fig.13 As shown, a small hole 54 connected to the inner cavity 11 is provided on one end of the inner ring air guide groove 51, and the inner ring large fire channel 52 is blocked from the inner ring air guide groove 51 on the outer surface of the valve core 1. In this design, the outer ring air guide groove 21 is connected to the inner cavity 11 through the small hole 54 to provide a preset flow value to the inner ring air outlet channel 64.

[0041] The difference between Example 4 and Example 1 is that:

[0042] like Fig.14 As shown, a connecting groove 55 is connected between the inner ring air guide groove 51 and the outer ring air guide groove 21. In this design, the connecting groove 55 enables the outer ring air guide groove 21 to be connected to the inner cavity 11 to provide a preset flow value to the inner ring air outlet. When the outer ring flow regulation group 3 is connected to the outer ring air outlet channel 63, the inner ring air guide groove 51 is also connected to the inner ring air outlet channel 64 at the same time.

[0043] Working principle of the present invention:

[0044] By rotating the valve core 1, the gas flow at the outer ring air outlet changes linearly, causing the gas flow through the outer ring air outlet channel 63 to also change linearly. When the outer ring flow is adjusted, the outer environmental fire groove 2 is always connected with the outer ring air outlet channel 63, and provides the minimum gas flow required for the outer ring combustion of the burner, thereby effectively ensuring that the outer ring flame of the burner is stable during the fire power adjustment process of the outer ring of the burner, avoiding accidental flameout of the outer ring of the burner during the adjustment process.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A linear flow valve core, comprising a valve core (1), characterized in that: The valve core (1) comprises an outer environmental fire groove (2), an outer ring flow regulating group (3), an outer ring high fire channel (4) and an inner ring flow regulating group (5); the outer ring high fire channel (4) is arranged on one side of the outer ring flow regulating group (3); the outer environmental fire groove (2), the inner ring flow regulating group (5) and the outer ring flow regulating group (3) are arranged in coordination; the outer environmental fire groove (2) comprises an outer ring air guide groove (21) and an outer environmental fire hole (22) provided on the outer ring air guide groove (21); The lower part of the valve core (1) is provided with an inner cavity (11) with an opening facing downwards, the outer ring large fire channel (4) and the outer ring environmental fire hole (22) are both in communication with the inner cavity (11), and when the outer ring flow regulating group (3) is in communication with the outer ring air outlet channel (63), the outer ring environmental fire hole (22) is in communication with the outer ring air outlet channel (63); the outer ring flow regulating group (3) comprises a tail groove (31), a gradient groove (32) and an outer ring channel (33), the tail groove (31), the gradient groove (32) and the outer ring The channel (33) and the inner cavity (11) are connected in sequence, the outer ring high fire channel (4) is connected to the inner cavity (11), the depth of the gradient groove (32) gradually becomes shallower along the direction from the outer ring channel (33) to the tail groove (31), and on the outer surface of the valve core (1), the outer ring high fire channel (4) is blocked from the outer ring channel (33); the inner ring flow regulating group (5) includes an inner ring air guide groove (51), an inner ring high fire channel (52) and a plurality of inner ring channels (53), The inner ring high fire channel (52) is connected to the inner cavity (11), and a plurality of the inner ring channels (53) are in an opposing structure and are respectively arranged on both sides of the inner ring air guide groove (51) and the inner ring high fire channel (52). On the outer surface of the valve core (1), the inner ring air guide groove (51) and the plurality of the inner ring channels (53) are blocked, and when the outer ring flow regulating group (3) is connected to the outer ring air outlet channel (63), the inner ring air guide groove (51) is connected to the inner ring air outlet channel (64).

2. The linear flow valve core according to claim 1, characterized in that: The inner ring large fire channel (52) is in communication with one end of the inner ring air guide groove (51).

3. The linear flow valve core according to claim 1, characterized in that: A small hole (54) communicating with the inner cavity (11) is provided at one end of the inner ring air guide groove (51), and the inner ring large fire channel (52) is blocked from the inner ring air guide groove (51) on the outer surface of the valve core (1).

4. A linear flow valve core according to claim 1, characterized in that: A connecting groove (55) is connected between the inner ring air guide groove (51) and the outer ring air guide groove (21).

5. The linear flow valve core according to claim 1, characterized in that: An additional fire protection channel (23) is provided on one side of the outer ring flow regulating group (3), and the additional fire protection channel (23) is communicated with the inner cavity (11).

6. A gas cock valve comprising the linear flow valve core according to any one of claims 1 to 5, characterized in that: It comprises a valve core (1), a valve body (6), a valve stem (7), an upper cover (8) and a pin assembly (9), wherein the valve core (1) is arranged in the valve body (6), the valve stem (7) which is in transmission cooperation with the valve core (1) is arranged on the upper cover (8), the pin assembly (9) is connected to the bottom of the valve stem (7), and the upper cover (8) is arranged on the valve body (6).

7. The gas cock valve according to claim 6, characterized in that: The valve body (6) comprises an air inlet (61), a valve core cavity (62), an outer ring air outlet passage (63) connected to the outer ring air outlet, and an inner ring air outlet passage (64) connected to the inner ring air outlet, and the valve core (1) is arranged in the valve core cavity (62).

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