Linear flow valve without valve core plane seal

Abstract

The utility model relates to the technical field of gas valves, and discloses a valve-core-free plane-sealed linear flow valve which comprises a valve body, a rotating piece, a pressing block and a sealing block, one end of the valve body is provided with an installation cavity, the other end of the valve body is provided with a gas outlet pipe, the valve body is provided with a gas inlet pipe, the gas inlet pipe is provided with a gas inlet pipe opening, and the sealing block is provided with a gas outlet pipe opening. A mounting cavity is formed in the valve body, an air outlet channel communicated with the mounting cavity is formed in the air outlet pipe, the pressing block and the sealing block are arranged in the mounting cavity, one end of the rotating part extends into the mounting cavity through a clamping part to be matched with the pressing block, the other end of the rotating part extends out of the outer end of the valve body to be provided with a valve rod part, one end of the pressing block is matched with the rotating part, and the other end of the pressing block is matched with the sealing block. The end face of the pressing block is provided with a flow linear adjusting module communicated with the air outlet channel and the air inlet pipe opening.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, in particular to a linear flow valve without valve core plane sealing. Background Art

[0002] At present, the components of the fire control device of household gas stoves on the market generally use plug valves, including valve body, valve core, valve shaft and valve seat, and the valve core and valve body are movably assembled. The structure of the existing valve to achieve the adjustment of the outlet flow rate is basically to drill different sized vent holes at different positions on the cone of the valve core. By rotating the valve core, the vent holes of different sizes on the valve core are connected with the air guide holes on the valve body, so as to adjust the fire power. Due to the small volume of the valve body itself, the number and aperture size of the holes opened on the valve core are also limited, making it difficult to achieve fine-tuning, and even more difficult to smoothly adjust the gas flow. Moreover, during the rotation of the valve core, problems are prone to occur in the connection between the outlet channel and different holes or grooves, resulting in fluctuations in the flow curve.

[0003] The patent document with publication number CN220416300U discloses a gas valve core with linear flow control. The valve core is assembled in a valve and realizes linear flow adjustment by rotation adjustment. However, the sealing of the valve core and the valve body in the comparative document is mainly achieved by the cooperation between the outer conical surface of the valve core and the inner conical surface of the valve body. Since the difficulty of conical surface sealing processing and realizing deep gradient groove processing on the conical surface is relatively high, the processing cost is high. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a linear flow valve without valve core plane sealing, which reduces the valve core arrangement in the valve, simplifies the processing technology and reduces the processing cost by realizing plane sealing.

[0005] The technical solution of the utility model is: a linear flow valve without valve core plane seal, comprising a valve body, a rotating part, a pressure block and a sealing block, wherein a mounting cavity is arranged at one end of the valve body, and an air outlet pipe is arranged at the other end, an air inlet pipe is arranged on the valve body, an air inlet pipe port is opened on the air inlet pipe, an air outlet passage connected with the mounting cavity is arranged in the air outlet pipe, the pressure block and the sealing block are arranged in the mounting cavity, one end of the rotating part extends into the mounting cavity through a clamping part and is adapted to the pressure block, and the other end extending out of the outer end of the valve body is provided with a valve stem part, one end of the pressure block cooperates with the rotating part, and the other end is connected with the sealing block, and a flow linear adjustment module connected with the air outlet passage and the air inlet port is arranged on the end face of the pressure block.

[0006] It can be seen from the above scheme that the air inlet pipe is used for the intake of gas, the air outlet channel is used for the outlet of regulated gas, the rotating part is used to realize feeding and rotation in the installation cavity, the pressure block is used to adapt to the rotating part to realize the regulation of the gas entering the valve body, the sealing block is used to be arranged between the pressure block and the air outlet pipe to realize sealing, the rotating part realizes a locking fit with the pressure block through a locking part, the rotating part realizes rotation through the valve stem, the air inlet is used to communicate with the air inlet pipe port to realize air intake, and the flow linear adjustment module is used to linearly adjust the outlet flow of the gas, thereby adjusting the firepower.

[0007] The end of the clamping part is provided with a positioning hole, a top column is provided in the positioning hole along the axis, and the rotating member is provided with an embedding groove on the edge protrusion of the positioning hole. It can be seen that the clamping part realizes the clamping cooperation with the pressing block through the embedding groove.

[0008] The sealing block is provided with an air outlet hole and an air inlet hole, the sealing block is symmetrically provided with arc-shaped protrusions on both sides of the air outlet hole, the valve body is provided with a limiting arc groove adapted to the arc-shaped protrusions, the air outlet hole is communicated with the air outlet channel, and the air inlet hole is communicated with the air inlet port. It can be seen that the limiting arc groove is adapted to the arc-shaped protrusions to achieve the sealing of the sealing block in the valve body.

[0009] The flow linear adjustment module includes a gradient groove and a tail groove connected to the gradient groove, an air outlet is provided at the starting end of the gradient groove, the air outlet is provided corresponding to the air outlet through hole, the width of the gradient groove narrows from the air outlet to the tail groove, the depth of the gradient groove gradually becomes shallower from the air outlet to the tail groove, and the depth of the tail groove is consistent with the depth of the air outlet. It can be seen that the air outlet is connected with the air outlet channel through the air outlet through hole to realize the gas outlet, and the flow linear adjustment module realizes the conduction between the air inlet pipe and the air outlet channel through the rotation adjustment of the rotating part, and the notches of different depths are rotated to align with the air inlet pipe to realize the linear change of the gas flow.

[0010] The pressure block is provided with a cut-off groove on the same end face as the flow linear adjustment module, and an insert block and a top block are provided at the end of the pressure block. The insert block is provided corresponding to the insert groove, and the top block is provided corresponding to the top column. It can be seen that the cut-off groove is used to communicate with the air intake port to stop the air intake, thereby turning off the firepower. The insert block and the insert groove are correspondingly engaged to achieve the locking position between the pressure block and the rotating member. At the same time, the top block and the top column are abutted. After the locking position, the rotating block drives the pressure block to rotate in real time when rotating to achieve rotation adjustment.

[0011] The end of the air inlet pipe is provided with a threaded mounting hole, which can be seen to be used for fixing the valve body on the pipeline.

[0012] The gas outlet passage is arranged in a conical shape, and the diameter of the gas outlet passage gradually increases along the gas outlet direction. It can be seen that the gas outlet passage is arranged in a conical shape to facilitate the full mixing of fuel gas and oxygen for combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is an exploded view of the utility model;

[0015] Figure 3 It is an exploded view of the utility model from another perspective;

[0016] Figure 4 It is a cross-sectional view of the utility model;

[0017] Figure 5 It is a schematic diagram of the structure of the briquette. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] like Figures 1 to 5 As shown, the utility model is a linear flow valve without valve core plane seal, comprising a valve body 1, a rotating member 2, a pressing block 3 and a sealing block 4, wherein the valve body 1 is provided with a mounting cavity 11 at one end and an air outlet pipe 12 at the other end, an air inlet pipe 13 is provided on the valve body 1, an air inlet pipe port 131 is provided on the air inlet pipe 13, a threaded mounting hole is provided at the end of the air inlet pipe 13, an air outlet passage 121 communicating with the mounting cavity 11 is provided in the air outlet pipe 12, the pressing block 3 and the sealing block 4 are arranged in the mounting cavity 11, one end of the rotating member 2 extends into the mounting cavity 11 through a clamping portion 21 to adapt to the pressing block 3, and the other end extending out of the valve body 1 is provided with a valve stem portion 22, one end of the pressing block 3 cooperates with the rotating member 2, and the other end is connected to the sealing block 4, and a flow linear adjustment module 5 communicating with the air outlet passage 121 and the air inlet port 131 is provided on the end face of the pressing block 3.

[0020] In this embodiment, a limiting ring groove is provided on the rotating member 2, and a socket is provided on the valve body 1. A limiting member is inserted into the socket corresponding to the limiting ring groove to realize the limiting of the rotating member at the end of the valve body 1. A gas outlet connected to the gas outlet channel 121 is provided at the end of the outlet pipe 12. The diameter of the gas outlet is larger than the diameter of the gas outlet channel 121. The sealing block 4 is arranged in the pressure block 3 and the valve body 1 to realize planar sealing. The mounting cavity 11 is provided with a movable space for the locking portion 21. The locking portion 21 is fed into the mounting cavity 11 at the end of the valve body 1 to realize the locking cooperation with the pressure block 3, so that the rotating member 2 drives the pressure block 3 to realize rotation.

[0021] The sealing block 4 is provided with an air outlet hole 41 and an air inlet hole 42, and the sealing block 4 is symmetrically provided with arc-shaped protrusions 43 on both sides of the air outlet hole 41, and the valve body 1 is provided with a limiting arc groove 15 adapted to the arc-shaped protrusion 43, the air outlet hole 41 is connected to the air outlet channel 121, and the air inlet hole 42 is connected to the air inlet pipe port 131.

[0022] The flow linear regulation module 5 includes a gradient groove 51 and a tail groove 52 connected to the gradient groove 51. An air outlet 53 is provided at the starting end of the gradient groove 51. The air outlet 53 is provided corresponding to the air outlet through hole 41. The width of the gradient groove 51 becomes narrower along the air outlet 53 to the tail groove 52. The depth of the gradient groove 51 gradually becomes shallower along the air outlet 53 to the tail groove 52. The depth of the tail groove 52 is consistent with the depth of the air outlet 53.

[0023] A top column 211 is provided at the end of the locking portion 21, and an embedding groove 213 is provided on the edge protrusion 212 of the top column 211 of the rotating member 2. The pressing block 3 is provided with a cut-off groove 31 on the same end surface as the flow linear adjustment module 5, and an embedding block 32 and a top block 33 are provided at the other end of the pressing block 3. The embedding block 32 is arranged corresponding to the embedding groove 213, and the top block 33 is arranged corresponding to the top column 211.

[0024] The air outlet channel 121 is configured in a conical shape, and the diameter of the air outlet channel 121 gradually increases along the air outlet direction.

[0025] The working process of the utility model is as follows: the locking portion 21 of the rotating member 2 is pressed inward to realize feeding, the embedded block 32 on the pressing block 3 is aligned with the embedded groove 213 to realize locking cooperation, the top column 211 at the end of the locking portion 21 contacts the top block 33 on the end surface of the pressing block 3, the valve stem portion 22 is rotated, the rotating member 2 drives the pressing block 3 to rotate, the gradient groove 51 on the flow linear adjustment module 5 is connected with the air inlet pipe port 131 through the air inlet through hole 42 on the sealing block 4, and the air outlet 53 is aligned with the air outlet channel 121 through the air outlet through hole 41 on the sealing block 4 to realize the gas outlet, and after the pressing block 3 rotates and the air inlet pipe port 131 is aligned with the gradient groove 51, the depth of the gradient groove 51 changes linearly to realize the linear change of the gas intake amount, thereby realizing the linear adjustment of the firepower size, and when the air inlet through hole 41 is aligned with the cut-off groove 31, the gas output is stopped, thereby realizing the closing of the firepower.

[0026] It should be noted that the flow linear regulation module 5 realizes flow regulation by rotating the rotating part 2 .

[0027] Finally, it should be emphasized that the above is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A linear flow valve without valve core plane seal, characterized by: The invention comprises a valve body (1), a rotating member (2), a pressing block (3) and a sealing block (4); the valve body (1) is provided with a mounting cavity (11) at one end and an air outlet pipe (12) at the other end; the valve body (1) is provided with an air inlet pipe (13); the air inlet pipe (13) is provided with an air inlet pipe opening (131); the air outlet pipe (12) is provided with an air outlet passage (121) communicating with the mounting cavity (11); the pressing block (3) and the sealing block (4) are arranged in the valve body (1) and the rotating member (2); the pressing block (3) and the sealing block (4) are arranged in the valve body (1) and the rotating member (2); the pressing block (3) and the sealing block (4) are arranged in the valve body (1) and the rotating member (2); the pressing block (3) and the sealing block (4) are arranged in the valve body (1) and the rotating member (2); the pressing block (3) and the sealing block (4) are arranged in the valve body (1) and the rotating member (2); the pressing block (3) and the sealing block (4) are arranged in the valve body (1) and the rotating member (2); the pressing block (3) and the sealing block (4) are arranged in the valve body (1) and the rotating member (2); ... In the installation cavity (11), one end of the rotating member (2) extends into the installation cavity (11) through the locking portion (21) to match the pressure block (3), and the other end extends out of the outer end of the valve body (1) and is provided with a valve stem portion (22). One end of the pressure block (3) matches the rotating member (2), and the other end is connected to the sealing block (4). The end surface of the pressure block (3) is provided with a flow linear adjustment module (5) that is connected to the air outlet channel (121) and the air inlet pipe port (131).

2. A linear flow valve without valve core plane seal according to claim 1, characterized in that: The end of the locking portion (21) is provided with a top column (211), and the rotating member (2) is provided with an embedding groove (213) on the edge protrusion (212) of the top column (211).

3. A linear flow valve without valve core plane seal according to claim 1, characterized in that: The sealing block (4) is provided with an air outlet hole (41) and an air inlet hole (42); the sealing block (4) is symmetrically provided with arc-shaped protrusions (43) on both sides of the air outlet hole (41); a limiting arc groove (15) adapted to the arc-shaped protrusion (43) is provided in the valve body (1); the air outlet hole (41) is communicated with the air outlet channel (121); and the air inlet hole (42) is communicated with the air inlet pipe port (131).

4. A linear flow valve without valve core plane seal according to claim 3, characterized in that: The flow linear regulation module (5) comprises a gradient groove (51) and a tail groove (52) connected to the gradient groove (51); an air outlet (53) is arranged at the starting end of the gradient groove (51); the air outlet (53) is arranged corresponding to the air outlet through hole (41); the width of the gradient groove (51) narrows along the air outlet (53) to the tail groove (52); the depth of the gradient groove (51) gradually becomes shallower along the air outlet (53) to the tail groove (52); and the depth of the tail groove (52) is consistent with the depth of the air outlet (53).

5. A linear flow valve without valve core plane seal according to claim 2, characterized in that: The pressing block (3) is provided with a cut-off groove (31) on the same end face as the flow linear regulating module (5), and the other end of the pressing block (3) is provided with an insert block (32) and a top block (33), wherein the insert block (32) is arranged corresponding to the insert groove (213), and the top block (33) is arranged corresponding to the top column (211).

6. A linear flow valve without valve core plane seal according to claim 1, characterized in that: The end of the air inlet pipe (13) is provided with a threaded mounting hole.

7. A linear flow valve without valve core plane seal according to claim 1, characterized in that: The air outlet channel (121) is arranged in a conical shape, and the diameter of the air outlet channel (121) gradually increases along the air outlet direction.

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