Pressure stabilizing control valve of coffee machine

Abstract

The utility model discloses a pressure stabilizing control valve of a coffee machine, which comprises a valve cover and a valve main body, and the valve cover and the valve main body are fixedly connected through a locking structure. The locking structure comprises a first locking matching part and a second locking matching part which are matched in a locking mode, the first locking matching part is arranged on the valve deck, the second locking matching part is correspondingly arranged on the valve body, a plurality of first locking blocks are arranged on the first locking matching part, and a plurality of second locking blocks corresponding to the first locking blocks are arranged on the second locking matching part. The first locking block is provided with a first locking face in contact fit with the second locking block, the first locking face is obliquely arranged in the length direction of the first locking block, the second locking block is provided with a second locking face which slides in a guiding mode and is in locking fit with the first locking face, and the first locking face and the second locking face are oppositely and obliquely arranged on the first locking block and the second locking block correspondingly. The valve cover and the valve body are locked stably, the disassembly and assembly convenience is better, the manufacturing cost is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee machine pressure control technical field, especially relate to a kind of coffee machine's pressure stabilizing control valve. BACKGROUND

[0002] The existing patent with the announcement number CN 103519697B discloses a kind of pressure stabilizing control device for coffee machine, including shell, valve body, throttling piece and throttling pad, the shell is set on the upper end of the valve body, the lower end of the valve body is equipped with liquid inlet and liquid outlet, the throttling piece is set on the liquid outlet, the throttling pad is set on the throttling piece, and the throttling pad and the throttling piece form a throttling passage, and the pressure stabilizing control device further includes buffer pad, the buffer pad is set between the shell and the valve body.

[0003] But the pressure stabilizing control device of coffee machine described above has the following shortcomings: the shell of the device is generally connected with the valve body tightly by stainless steel riveting process, but riveting process is complex, and the manufacturing cost is higher, and the shell and the valve body are difficult to disassemble, and improvement is urgently needed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of coffee machine's pressure stabilizing control valve, with valve cover and valve main body locking firm and more convenient disassembly, reduce manufacturing cost, improve production efficiency.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a kind of coffee machine's pressure stabilizing control valve, including valve cover and valve main body, the valve cover and valve main body are fixedly connected by locking structure between them;

[0006] The locking structure includes first locking cooperation part and second locking cooperation part of locking cooperation, the first locking cooperation part is located on the valve cover, the second locking cooperation part is correspondingly located on the valve main body, a plurality of first lock blocks are provided on the first locking cooperation part, and a plurality of second lock blocks are provided on the second locking cooperation part corresponding to the first lock block;The first lock block is provided with the first locking surface that is in contact with the second lock block, and the first locking surface is inclinedly arranged along the length direction of the first lock block, the second lock block is provided with the second locking surface that is guided to slide and locking cooperation with the first locking surface, and the first locking surface and the second locking surface are relatively inclinedly arranged on the corresponding first lock block and second lock block.

[0007] By adopting the technical scheme, the first locking block and the second locking block are in the unlocking position, the valve cover is closed to the valve body, then the valve cover is screwed relative to the valve body, the first locking part is rotated relative to the second locking part, under the guidance of the first locking surface and the second locking surface, the first locking block is driven to rotate relative to the second locking block from the unlocking position to the locking state, since the first locking surface and the second locking surface are oppositely and obliquely arranged on the corresponding first locking block and second locking block, with the increase of the screwing angle of the valve cover, the static friction between the first locking surface and the second locking surface is larger and larger, until the valve cover and the valve body are completely locked, the valve cover and the valve body are locked stably, the disassembly and assembly are more convenient, the manufacturing cost is reduced, and the production efficiency is improved.

[0008] The utility model discloses further provide that: the first locking part is along the valve cover periphery and extends to the valve body and is the ring shape cover body part, a plurality of first locking blocks are protruded on the inner wall of the first locking part, and when the valve body and valve cover are fixedly connected, the first locking part is circumferentially surrounded in the periphery of the second locking part.

[0009] By adopting the technical scheme, when the valve cover is locked to the valve body, the first locking surface of the first locking block and the second locking surface of the second locking block are locked to each other, and the cover bottom of the valve cover and the first locking part of the valve body are abutted, so that the valve cover is locked firmly on the valve body.

[0010] The utility model discloses further provide that: the first locking block is equipped with three, and the second locking block is correspondingly adapted and is equipped with three.

[0011] By adopting the technical scheme, the plurality of first locking blocks and second locking blocks are locked to each other, which is beneficial to improve the locking firmness of the valve cover on the valve body.

[0012] The utility model discloses further provide that: three first locking blocks, second locking blocks are along the circumferential equidistance distribution in the corresponding first locking part, second locking part side wall.

[0013] By adopting the technical scheme, the three first locking blocks are equidistantly distributed in a triangular shape, and the stability of the triangular shape is utilized to further improve the stability of the valve cover locked on the valve body.

[0014] The utility model discloses further provide that: the second locking part is equipped with a plurality of reinforcing ribs between the valve body.

[0015] By adopting the technical scheme, the reinforcing ribs are added, the structural strength between the second locking part and the valve body is improved, and the second locking part can be effectively prevented from being unexpectedly twisted and broken on the valve body due to excessive force when the valve cover is screwed.

[0016] The utility model discloses a further setting for: first locking cooperation department with the valve body is equipped with the clamping positioning structure, when the valve cover is relative the valve body rotates to the predetermined angle, first locking surface with second locking surface contact and fit, and the valve cover with the valve body is through clamping positioning structure and stops rotation cooperation.

[0017] Through the above technical scheme, under the cooperation of the clamping positioning structure and the locking structure, the locking between the valve cover and the valve body is more firm, and the accidental rotation of the valve cover relative to the valve body in the unlocking direction caused by the clamping positioning structure can be effectively prevented.

[0018] The utility model discloses a further setting for: the clamping positioning structure includes first clamping block and second clamping block, first clamping block is fixed on first locking cooperation department, second clamping block is fixed on second locking cooperation department, and first locking cooperation department, second locking cooperation department at least one is equipped with the material of elastic deformation ability, when first locking cooperation department relative second locking cooperation department rotates the predetermined angle, first clamping block surpasses second clamping block, and first clamping block surpasses second clamping block and both locking direction stop block cooperation.

[0019] Through the above technical scheme, when the valve cover is covered on the valve body, and the valve cover is rotated to the predetermined angle relative to the valve body, the reverse locking of the valve cover and the valve body in the unlocking direction is realized by the stop action of the first clamping block and the second clamping block, so that the valve cover and the valve body are firmly locked together by the first locking block and the second locking block.

[0020] The utility model discloses a further setting for: first clamping block is located on first locking block, and first clamping block with first locking surface is divided and located on the upper and lower two end surfaces of first locking block.

[0021] The utility model discloses a further setting for: first clamping block corresponds second clamping block and is equipped with the guide inclined plane, and the guide inclined plane with first locking surface is opposite and sets up, when the valve cover is relative the valve body and rotates to the locking direction, first clamping block passes through the guide inclined plane with second clamping block and guides cooperation.

[0022] Through the above technical scheme, the guide inclined plane is added, which is beneficial to the process that the second clamping block smoothly surpasses the first locking block to reach its back surface through the guide inclined plane when the valve cover rotates to the locking direction relative to the valve body, so as to realize the locking and fixing of the first clamping block and the second clamping block.

[0023] The utility model discloses further provide that: the valve cover and valve body between being equipped with valve diaphragm, the valve body is opened with water inlet channel and water outlet channel, the valve cover and valve body between form the pressure -stabilizing chamber, the valve diaphragm is located in the pressure -stabilizing chamber, the valve diaphragm will the pressure -stabilizing chamber divide and form the water passing chamber and pressure regulating chamber, and the water inlet channel passes through the water passing chamber with the water outlet channel is connected.

[0024] Through adopting above-mentioned technical scheme, when the liquid flow in water inlet channel is too large, the valve diaphragm elastically deforms to pressure regulating chamber, thereby increasing the liquid flow of water outlet channel, realizing the purpose of instantaneous pressure storage of pressure regulating chamber, when the liquid flow in water inlet channel suddenly becomes small, the valve diaphragm realizes elastic reset to water passing chamber by relying on self elastic force, and then releases the pressure stored in pressure regulating chamber, thereby reducing the liquid flow of water passing chamber, and the above-mentioned process is completed instantaneously, which can be used to stabilize coffee flow and pressure, thereby reducing the noise when coffee machine operates.

[0025] In conclusion, the utility model has the following beneficial effects:

[0026] The first locking block is obliquely provided with a first locking surface, and the second locking block is correspondingly obliquely provided with a second locking surface, so that the first locking block and the second locking block are in an unlocking position, the valve cover is covered on the valve body, and then the valve cover is screwed relative to the valve body, so that the first locking portion is rotated relative to the second locking portion, and the first locking block is driven to rotate from the unlocking position to the locking state under the guidance of the first locking surface and the second locking surface. Since the first locking surface and the second locking surface are oppositely and obliquely arranged on the corresponding first locking block and second locking block, the static friction force between the first locking surface and the second locking surface becomes larger and larger with the increase of the screwing angle of the valve cover, until the valve cover and the valve body are completely locked, so that the valve cover and the valve body are stably locked, the disassembly and assembly are more convenient, the manufacturing cost is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the overall structure diagram of the utility model.

[0028] Figure 2 It is the longitudinal section view of the utility model.

[0029] Figure 3 It is the explosion diagram of the utility model.

[0030] Figure 4 It is the explosion diagram of another angle of the utility model.

[0031] Figure 5 It is the front view of the valve body of the utility model.

[0032] Figure 6 is a longitudinal sectional view of the valve cover of the present application.

[0033] In the figure: 1, valve cover; 11, first locking matching part; 111, first lock block; 1111, first locking surface; 112, first clamping block; 1121, guide inclined surface; 2, valve main body; 21, second locking matching part; 211, second lock block; 2111, second locking surface; 22, reinforcing rib; 23, second clamping block; 24, water inlet channel; 25, water outlet channel; 26, annular groove; 3, valve diaphragm; 31, annular compression part; 4, pressure stabilizing cavity; 41, water passing cavity; 42, pressure regulating cavity. DETAILED DESCRIPTION

[0034] The present application will be further described below in conjunction with the drawings.

[0035] A pressure stabilizing control valve for a coffee machine, such as Figure 1 and Figures 3-6As shown, it comprises a valve cover 1 and a valve body 2, the valve cover 1 and the valve body 2 are fixedly connected through a locking structure, the valve cover 1 and the valve body 2 are plastic parts in the embodiment; the locking structure comprises a first locking part 11 and a second locking part 21 which are locked and matched, the first locking part 11 is arranged on the valve cover 1, the second locking part 21 is integrally arranged on the valve body 2, a plurality of first locking blocks 111 are arranged on the first locking part 11, a plurality of second locking blocks 211 are arranged on the second locking part 21 corresponding to the first locking blocks 111; the first locking block 111 is provided with a first locking surface 1111 which is in contact with the second locking block 211, the first locking surface 1111 is arranged obliquely along the length direction of the first locking block 111, the second locking block 211 is provided with a second locking surface 2111 which is guided and slipped with the first locking surface 1111 and locked and matched, and the first locking surface 1111 and the second locking surface 2111 are arranged obliquely on the corresponding first locking block 111 and second locking block 211; the first locking part 11 is arranged as a cover body part which extends along the periphery of the valve cover 1 towards the valve body 2 and is annular, the plurality of first locking blocks 111 are protruded on the inner wall of the first locking part 11, and when the valve body 2 and the valve cover 1 are fixedly connected, the first locking part 11 is circumferentially surrounded around the periphery of the second locking part 21, when the valve cover 1 is locked on the valve body 2, the first locking surface 1111 of the first locking block 111 and the second locking surface 2111 of the second locking block 211 are locked with each other, at the same time, the bottom of the valve cover 1 is abutted with the first locking part 11 of the valve body 2, so that the valve cover 1 is tightly locked on the valve body 2; a valve diaphragm 3 is arranged between the valve cover 1 and the valve body 2, the valve body 2 is provided with a water inlet channel 24 and a water outlet channel 25, a pressure stabilizing chamber 4 is formed between the valve cover 1 and the valve body 2, the valve diaphragm 3 is arranged in the pressure stabilizing chamber 4, the valve diaphragm 3 divides the pressure stabilizing chamber 4 to form a water passing chamber 41 and a pressure regulating chamber 42, and the water inlet channel 24 is communicated with the water outlet channel 25 through the water passing chamber 41, when the liquid flow in the water inlet channel 24 is too large, the valve diaphragm 3 is elastically deformed towards the pressure regulating chamber 42, so as to increase the liquid flow of the water outlet channel 25, and the purpose of instant pressure storage of the pressure regulating chamber 42 is realized, when the liquid flow in the water inlet channel 24 is suddenly reduced, the valve diaphragm 3 is elastically reset towards the water passing chamber 41 by relying on the elastic force of itself, and then the pressure stored in the pressure regulating chamber 42 is released, so as to reduce the liquid flow of the water passing chamber 41, the above process is completed instantaneously, which can be used to stabilize the coffee flow and pressure, so as to reduce the noise during the operation of the coffee machine; in the embodiment, a ring-shaped pressing part 31 is integrally arranged on the side of the valve diaphragm 3 facing the valve body 2, the valve body 2 is provided with a ring-shaped groove 26 corresponding to the ring-shaped pressing part 31, when the valve diaphragm 3 is tightly positioned between the valve cover 1 and the valve body 2, the ring-shaped pressing part 31 is tightly positioned in the ring-shaped groove 26.It should be noted that in other embodiments, the second locking portion 21 can also be provided as an annular surrounding portion extending along the periphery of the valve body 2 towards the valve cover 1, and the second locking block 211 is provided on the inner wall of the second locking portion 21, and the first locking block 111 is provided on the outer wall of the first locking portion 11. When the valve body 2 is fixedly connected with the valve cover 1, the second locking portion 21 circumferentially surrounds the periphery of the first locking portion 11.

[0036] As shown in Figures 1-5 The first locking block 111 is provided with three, and the second locking block 211 is provided with three corresponding to the first locking block 111. The plurality of first locking blocks 111 and the second locking blocks 211 are locked with each other, which is beneficial to improve the locking firmness of the valve cover 1 on the valve body 2. The three first locking blocks 111 and the second locking blocks 211 are equally spaced circumferentially distributed on the side walls of the corresponding first locking portion 11 and the second locking portion 21. The three first locking blocks 111 are distributed in a triangular shape, which utilizes the stability of the triangular shape to further improve the stability of the valve cover 1 locked on the valve body 2. The second locking portion 21 and the valve body 2 are provided with a plurality of reinforcing ribs 22. The provision of the reinforcing ribs 22 improves the structural strength between the second locking portion 21 and the valve body 2, which can effectively prevent the second locking portion 21 from being unexpectedly twisted and broken on the valve body 2 due to excessive force when the valve cover 1 is screwed.

[0037] As shown in Figures 1-4As shown, the first locking fitting part 11 and the valve body 2 are provided with clamping positioning structure, when the valve cover 1 rotates to a predetermined angle relative to the valve body 2, the first locking surface 1111 contacts and fits with the second locking surface 2111, and the valve cover 1 and the valve body 2 are rotationally matched through the clamping positioning structure, under the mutual cooperation of the clamping positioning structure and the locking structure, the locking firmness between the valve cover 1 and the valve body 2 is higher, which can effectively prevent the accidental rotation of the valve cover 1 relative to the valve body 2 in the unlocking direction caused by the clamping positioning structure alone; the clamping positioning structure includes a first clamping block 112 and a second clamping block 23, the first clamping block 112 is fixedly arranged on the first locking fitting part 11, the second clamping block 23 is fixedly arranged on the second locking fitting part 21, and at least one of the first locking fitting part 11 and the second locking fitting part 21 is made of a material capable of elastically deforming, when the first locking fitting part 11 rotates a predetermined angle relative to the second locking fitting part 21, the first clamping block 112 passes over the second clamping block 23 and the two are stopper matched in the unlocking direction, so that the valve cover 1 and the valve body 2 are rotationally matched in the unlocking direction, at this time, the first locking surface 1111 and the second locking surface 2111 are in close contact and mutually locked in the locking direction, in the embodiment, the unlocking direction and the locking direction of the valve cover relative to the valve body are inverse processes, when the valve cover 1 is covered on the valve body 2, and the valve cover 1 is rotated to a predetermined angle relative to the valve body 2, the reverse locking of the valve cover 1 and the valve body 2 in the unlocking direction is realized by using the stopper action of the first clamping block 112 and the second clamping block 23, so that the valve cover 1 and the valve body 2 are firmly locked together by the first locking block 111 and the second locking block 211; in the embodiment, the first clamping block 112 is arranged on the first locking block 111, and the first clamping block 112 and the first locking surface 1111 are arranged on the upper and lower end surfaces of the first locking block 111; the first clamping block 112 is provided with a guide inclined surface 1121 corresponding to the second clamping block 23, and the guide inclined surface 1121 is arranged opposite to the first locking surface 1111, when the valve cover 1 rotates in the locking direction relative to the valve body 2, the first clamping block 112 is guided and matched with the second clamping block 23 through the guide inclined surface 1121, the addition of the guide inclined surface 1121 is beneficial to the process that the second clamping block 23 smoothly passes through the first locking block 111 to the back surface thereof through the guide inclined surface 1121 during the rotation of the valve cover 1 relative to the valve body 2 in the locking direction, so as to realize the locking and fixing of the first clamping block 112 and the second clamping block 23, in other embodiments, the first clamping block 112 can also be arranged at a position deviating from the first locking block 111.

[0038] The basic working principle of the utility model is: first locking block 111 is arranged on the first locking cooperation part 11 of valve cover 1, and second locking block 211 is arranged on the second locking cooperation part 21 of valve body 2 correspondingly, wherein first locking block 111 is obliquely provided with first locking surface 1111, and second locking surface 2111 is obliquely arranged on second locking block 211 correspondingly, so that first locking block 111 and second locking block 211 are in the unlocking position, valve cover 1 is covered on valve body 2, then valve cover 1 is screwed relative to valve body 2, so that first locking cooperation part 11 rotates relative to second locking cooperation part 21, under the guidance of first locking surface 1111 and second locking surface 2111, first locking block 111 is driven to rotate from the unlocking position to the locking state relative to second locking block 211, since first locking surface 1111 and second locking surface 2111 are relatively obliquely arranged on corresponding first locking block 111 and second locking block 211, so with the increase of the screwing angle of valve cover 1, the static friction between first locking surface 1111 and second locking surface 2111 is more and more big, until valve cover 1 and valve body 2 are completely locked, and the effect that the locking of valve cover and valve body is stable, and the disassembly and assembly are better, the manufacturing cost is reduced, and the production efficiency is improved is achieved.

[0039] The above is only the preferred embodiment of the utility model, so equivalent changes or modifications made according to the structure, features and principles of the utility model patent application range are included in the utility model patent application range.

Claims

1. A pressure stabilizing control valve for a coffee machine comprising a valve cover (1) and a valve body (2), characterized in that: The valve cover (1) and the valve body (2) are fixedly connected through a locking structure; The locking structure comprises a first locking matching part (11) and a second locking matching part (21) which are locked together, the first locking matching part (11) is arranged on the valve cover (1), the second locking matching part (21) is correspondingly arranged on the valve body (2), a plurality of first locking blocks (111) are arranged on the first locking matching part (11), and a plurality of second locking blocks (211) are correspondingly arranged on the second locking matching part (21); the first locking block (111) is provided with a first locking surface (1111) which is in contact with the second locking block (211), the first locking surface (1111) is arranged obliquely along the length direction of the first locking block (111), the second locking block (211) is provided with a second locking surface (2111) which is guided to slide and locked with the first locking surface (1111), and the first locking surface (1111) and the second locking surface (2111) are arranged obliquely on the corresponding first locking block (111) and second locking block (211).

2. A pressure stabilizing control valve for a coffee machine according to claim 1, characterized in that: The first locking matching part (11) is arranged as a cover body part extending along the periphery of the valve cover (1) towards the valve body (2) and in a ring shape, a plurality of first locking blocks (111) are protruded on the inner wall of the first locking matching part (11), and when the valve body (2) and the valve cover (1) are fixedly connected, the first locking matching part (11) is circumferentially surrounded by the periphery of the second locking matching part (21).

3. The pressure stabilizing control valve of a coffee maker according to claim 1, wherein: The first locking block (111) is provided with three, and the second locking block (211) is correspondingly provided with three.

4. A pressure stabilizing control valve for a coffee machine according to claim 3, characterized in that: The three first locking blocks (111) and the second locking blocks (211) are distributed equidistantly along the circumference on the side walls of the first locking matching part (11) and the second locking matching part (21).

5. The pressure stabilizing control valve of a coffee maker according to claim 1, wherein: A plurality of reinforcing ribs (22) are arranged between the second locking matching part (21) and the valve body (2).

6. The pressure stabilizing control valve of a coffee maker according to claim 1, wherein: The first locking matching part (11) and the valve body (2) are provided with a clamping positioning structure, when the valve cover (1) is rotated to a predetermined angle relative to the valve body (2), the first locking surface (1111) is in contact with the second locking surface (2111), and the valve cover (1) and the valve body (2) are rotationally matched through the clamping positioning structure.

7. A pressure stabilizing control valve for a coffee machine according to claim 6, characterized in that: The clamping positioning structure comprises a first clamping block (112) and a second clamping block (23), the first clamping block (112) is fixedly arranged on the first locking matching part (11), the second clamping block (23) is fixedly arranged on the second locking matching part (21), and at least one of the first locking matching part (11) and the second locking matching part (21) is made of a material capable of elastically deforming, when the first locking matching part (11) is rotated by a predetermined angle relative to the second locking matching part (21), the first clamping block (112) passes over the second clamping block (23) and the two are stopper matched in the unlocking direction.

8. A pressure stabilizing control valve for a coffee machine according to claim 7, characterized in that: The first clamping block (112) is arranged on the first locking block (111), and the first clamping block (112) and the first locking surface (1111) are arranged on the upper and lower end surfaces of the first locking block (111).

9. A pressure stabilizing control valve for a coffee machine according to claim 7, characterized in that: The first clamping block (112) is provided with a guide inclined surface (1121) corresponding to the second clamping block (23), and the guide inclined surface (1121) is arranged opposite to the first locking surface (1111). When the valve cover (1) rotates relative to the valve body (2) in the locking direction, the first clamping block (112) is guided and matched with the second clamping block (23) through the guide inclined surface (1121).

10. The pressure stabilizing control valve of a coffee maker according to claim 1, wherein: The valve cover (1) and the valve body (2) are provided with a valve diaphragm (3), the valve body (2) is provided with a water inlet channel (24) and a water outlet channel (25), a pressure stabilizing cavity (4) is formed between the valve cover (1) and the valve body (2), the valve diaphragm (3) is arranged in the pressure stabilizing cavity (4), the valve diaphragm (3) divides the pressure stabilizing cavity (4) into a water passing cavity (41) and a pressure regulating cavity (42), and the water inlet channel (24) communicates with the water outlet channel (25) through the water passing cavity (41).

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