Steam valve and coffee machine

Abstract

The steam valve comprises a valve body, a valve element, a control rod and an elastic piece, the valve body is provided with a channel, the control rod is movably arranged in the channel, the head of the control rod stretches into the channel and faces the bottom wall of the channel, and the tail of the control rod stretches out of the channel and is used for being connected with a controller; a cavity is defined by the head of the control rod and the bottom wall of the channel, the valve body is provided with a steam inlet and a steam outlet, and the steam inlet and the steam outlet are communicated with the cavity. A mounting cavity is formed in the head of the control rod, the tail of the valve element is movably arranged in the mounting cavity, and the head of the valve element extends out towards the cavity. The elastic piece is arranged in the installation cavity, one end of the elastic piece abuts against the inner wall of the installation cavity, the other end of the elastic piece abuts against the tail of the valve element, and the elastic piece forms a reset mechanism of the valve element. And the service lives of the valve core and the steam inlet are effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of steam valve and coffee machine. BACKGROUND

[0002] Steam valve as the key component in fluid control system, its performance directly affects the sealing property and service life of equipment. The existing steam valve usually adopts the design of fixed connection of control lever and valve core, user rotates control lever to drive valve core synchronous rotation, and makes valve core insert steam inlet, to realize the control to steam flow. However, this kind of design has certain defects in practical application.

[0003] Firstly, since valve body and valve core are usually made of metal material, valve core is inserted into steam inlet by rotating extrusion, in long-term use process, wear and tear will be generated between valve core and steam inlet due to friction, leading to sealing performance decline, even the problem of steam leakage. This wear and tear not only affects the service life of steam valve, but also can reduce the safety and energy utilization of equipment.

[0004] When valve core and steam inlet form gap due to wear and tear, additional maintenance or replacement component is often needed, which increases the maintenance cost of equipment.

[0005] In order to solve the above problems, the present application proposes an improved steam valve design, in which control lever and valve core are no longer fixedly connected, but are provided with reset force by elastic member, so that valve core blocks steam inlet by plug-in mode. This design not only reduces the friction and wear between metal components, improves the sealing performance of steam valve, but also enhances the service life and operation convenience. SUMMARY

[0006] The first purpose of the utility model is to provide a kind of steam valve, which is provided with reset force by elastic member, so that valve core blocks steam inlet by plug-in mode, reduces the friction and wear between metal components, and improves the sealing performance of steam valve.

[0007] The second purpose of the utility model is to provide a kind of coffee machine, which is provided with reset force by elastic member, so that valve core blocks steam inlet by plug-in mode, reduces the friction and wear between metal components, and improves the sealing performance of steam valve.

[0008] The first purpose of the utility model is realized as follows:

[0009] A kind of steam valve, including valve body, valve core, control lever and elastic member, the valve body is opened with passageway, the control lever is set in passageway in movable mode, the head of control lever extends into passageway and is towards the bottom wall of passageway, the tail of control lever extends out of passageway for connecting controller;

[0010] The head of the operating lever and the bottom wall of the channel form a cavity, the valve body is provided with a steam inlet and a steam outlet, and the steam inlet and the steam outlet communicate with the cavity.

[0011] The head of the operating lever is provided with a mounting cavity, the tail of the valve core is movably arranged in the mounting cavity, and the head of the valve core extends out of the cavity.

[0012] The elastic member is arranged in the mounting cavity, one end of the elastic member abuts against the inner wall of the mounting cavity, and the other end of the elastic member abuts against the tail of the valve core, and the elastic member constitutes a reset mechanism of the valve core.

[0013] The operating lever and the valve core are separated by adopting the non-fixed connection structure, the valve core is plugged into the steam inlet through the movement of the operating lever and the reset action of the elastic member, metal friction and wear caused by rotation and extrusion are avoided, and therefore the service life of the valve core and the steam inlet is effectively prolonged.

[0014] The elastic member continuously applies elastic force, so that the valve core always maintains close contact with the steam inlet, and ideal sealing effect can be maintained even after long-term use, and the problem of steam leakage caused by gaps due to wear is prevented.

[0015] Since the metal friction and wear in the traditional design are reduced, the possibility of problems occurring in the equipment during long-term use is reduced, and the economic cost and maintenance difficulty caused by component replacement or maintenance are reduced.

[0016] By optimizing the structure design, sealing failure caused by metal fatigue or wear is effectively avoided, stable operation of the equipment under high temperature and high pressure conditions is ensured, and the safety and reliability of the system are improved as a whole.

[0017] The first purpose of the utility model can also be solved by the following technical measures:

[0018] Further, the elastic member is a silica gel elastic ball.

[0019] The silica gel elastic ball is used as the elastic member, has excellent high-temperature resistance, corrosion resistance and stable elastic force, and can ensure that the valve core and the steam inlet are continuously and uniformly pushed into close contact in long-term use, so that excellent sealing effect is maintained and the wear risk caused by vibration or temperature change is reduced.

[0020] Further, the head of the valve core is a bullet-shaped head, and the tail of the valve core is a column body with a diameter smaller than that of the mounting cavity.

[0021] The design of the bullet-shaped head helps to guide the valve core to be accurately and smoothly inserted into the steam inlet, form better sealing, and reduce impact and friction in the plugging process, thereby prolonging the service life of the components.

[0022] The tail part of the valve core adopts a cylindrical design with a smaller diameter than the installation cavity, which can ensure the free movement of the valve core in the installation cavity, reduce the movement resistance, avoid jamming, and improve the response speed and operation flexibility.

[0023] Further, the control lever and the passage of the valve body are connected through threads, and the control lever enters or exits the passage in a rotating manner.

[0024] The control lever and the passage of the valve body are fixed through threads, which not only ensures the firmness of the connection and prevents loosening due to external vibration or use, but also allows the control lever to enter or exit the passage in a rotating manner, thereby accurately adjusting the position of the valve core and ensuring the stability and reliability of the sealing state. It is also convenient for subsequent maintenance and adjustment.

[0025] Further, it also includes a stop bolt, the control lever has a stop groove along its circumferential direction, and the stop bolt extends into the stop groove through the valve body, limiting the movement range of the control lever.

[0026] By setting a stop groove on the control lever and using a stop bolt to pass through the valve body and enter the groove, the movement range of the control lever can be effectively limited to prevent damage to the valve body structure or operational errors caused by overtravel, thereby ensuring the precise cooperation between the valve body and the valve core and improving the safety and stability of the entire machine.

[0027] Further, it also includes a first sealing ring, which is sleeved on the head of the control lever, and the first sealing ring seals the gap between the control lever and the passage.

[0028] The first sealing ring is sleeved on the head of the control lever, sealing the gap between the control lever and the passage, preventing steam from leaking along this gap, ensuring the stability of the pressure inside the valve body, and effectively preventing dust and impurities from entering the passage, thereby enhancing the overall sealing performance and the reliability of the equipment operation.

[0029] Further, it also includes a second sealing ring and a steam inlet pipe, the steam inlet pipe is inserted into the steam inlet, and the second sealing ring is sleeved on the steam inlet pipe, sealing the gap between the steam inlet pipe and the steam inlet.

[0030] The steam inlet pipe is fixed to the steam inlet by insertion and has a second sealing ring sleeved thereon, which can seal the gap between the steam inlet pipe and the steam inlet, effectively preventing steam leakage and ensuring that steam can be stably introduced into the system, thereby maintaining the energy efficiency and safety of the system.

[0031] Further, it also includes a third sealing ring and a steam outlet pipe, the steam outlet pipe is inserted into the steam outlet, and the third sealing ring is sleeved on the steam outlet pipe, sealing the gap between the steam outlet pipe and the steam outlet.

[0032] The steam exhaust pipe is inserted into the steam outlet, and the gap between the two is sealed by the third sealing ring, so as to prevent steam from leaking due to the gap during the exhaust process, ensure that the waste steam can be safely discharged along the predetermined path, and avoid energy waste and potential safety hazards.

[0033] Further, the control lever moves in the channel direction to push the valve core to move until the head of the valve core is inserted into the steam inlet while the elastic member is compressed and deformed, at which time the control lever is moved to the position, and the elastic force of the elastic member pushes the valve core to maintain the state that the head of the valve core is inserted into the closed steam inlet.

[0034] When the control lever moves in the channel direction to push the valve core, the head of the valve core is inserted into the steam inlet, and the elastic member is compressed and deformed. At this time, the control lever reaches the predetermined position, and the elastic force of the elastic member continuously pushes the valve core to maintain the closed state, so as to ensure that the valve core can stably block the steam inlet even in the case of external vibration or temperature change during long-term use, thereby improving the sealing effect and the safety and reliability of the equipment.

[0035] The second purpose of the utility model is realized as follows:

[0036] A coffee machine comprises a water tank, a water pump and a heating boiler, the inlet of the water pump is communicated with the water outlet of the water tank, the outlet of the water pump is communicated with the water inlet of the heating boiler, and the steam discharge port of the heating boiler is communicated with the steam inlet of the steam valve.

[0037] The direct communication between the water tank and the water pump ensures that the water pump can always obtain sufficient water source from the water tank, thereby guaranteeing the continuous and stable water supply of the heating boiler.

[0038] The outlet of the water pump is communicated with the water inlet of the heating boiler, so that the water flow can enter the heating boiler at appropriate pressure and flow rate, which helps to quickly heat and maintain the ideal water temperature.

[0039] The steam discharge port of the heating boiler is communicated with the steam inlet of the steam valve, and the steam generated by the boiler is effectively controlled through the steam valve.

[0040] The overall design enables the water pump, the heating boiler and the steam valve to work cooperatively, which not only improves the energy efficiency of water heating and steam control, but also reduces the loss caused by unstable pressure or temperature fluctuation of each part, thereby prolonging the service life and reliability of the coffee machine.

[0041] The water pump sucks water from the water tank and stably sends the water into the heating boiler through the outlet of the water pump, water in the heating boiler is rapidly heated to boiling state under the action of the high-efficiency heating device, and under the high-temperature and high-pressure environment, the water is rapidly converted into steam, the high-temperature steam formed in the heating boiler is discharged through the steam discharge port of the heating boiler and is regulated through the steam valve connected thereto, and the steam valve accurately regulates the pressure and temperature of the discharged steam, so that the released steam meets the standard conditions required for coffee extraction or milk foam production.

[0042] The utility model discloses the beneficial effects are as follows:

[0043] The utility model discloses, adopt non - fixed connection structure, control lever and valve core separate, through the movement of control lever and the reset action of elastic part, make valve core with the way of plug -in jam the steam entrance, avoided because rotating extrusion produced metal friction and wear and tear, thereby effectively prolonged valve core and the service life of steam entrance.

[0044] The utility model discloses, elastic part continuously exerts the elastic force, make valve core always keep with the close contact of steam entrance, even long -term use can maintain ideal sealing effect, prevent the problem of steam leakage caused by the gap due to wear and tear.

[0045] The utility model discloses, because reduced metal friction and wear and tear in traditional design, the possibility of equipment in the long -term use process to appear the problem reduces, reduced the economic cost and maintenance difficulty due to the part replacement or maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0046] Fig. 1 It is the working principle diagram that coffee machine produces and discharges steam.

[0047] Fig. 2 It is the assembly drawing of steam valve.

[0048] Fig. 3 It is the sectional view of steam valve. DETAILED DESCRIPTION

[0049] The utility model will be further described in connection with the drawings and examples:

[0050] Example, combine Figs. 1 to 3 As shown in the figure, a steam valve, including valve body 1, valve core 2, control lever 3 and elastic part, the valve body 1 is opened with passageway 11, the control lever 3 is set in passageway 11 with movable mode, the head of control lever 3 stretches into passageway 11 and is towards the bottom wall of passageway 11, the tail of control lever 3 stretches out passageway 11 outside for connecting controller;

[0051] The head of the operating lever 3 and the bottom wall of the channel 11 form a cavity 12, the valve body 1 is provided with a steam inlet 13 and a steam outlet 14, which communicate with the cavity 12.

[0052] The head of the operating lever 3 is provided with a mounting cavity 31, the tail of the valve core 2 is movably arranged in the mounting cavity 31, and the head of the valve core 2 extends into the cavity 12.

[0053] The elastic member is arranged in the mounting cavity 31, one end of the elastic member abuts against the inner wall of the mounting cavity 31, and the other end of the elastic member abuts against the tail of the valve core 2, and the elastic member constitutes a reset mechanism of the valve core 2.

[0054] Further, the elastic member is a silica gel elastic ball 4.

[0055] Further, the head of the valve core 2 is a bullet-shaped head 21, and the tail of the valve core 2 is a cylinder 22 with a diameter smaller than that of the mounting cavity 31.

[0056] Further, the operating lever 3 and the channel 11 of the valve body 1 are connected through threads, and the operating lever 3 enters or leaves the channel 11 in a rotating manner.

[0057] Further, a stop bolt 5 is further included, the operating lever 3 is provided with a stop groove 32 along the circumferential direction thereof, the stop bolt 5 extends into the stop groove 32 through the valve body 1, and the stop bolt 5 limits the movement range of the operating lever 3.

[0058] Further, a first sealing ring 6 is further included, the first sealing ring 6 is sleeved on the head of the operating lever 3, and the first sealing ring 6 seals the gap between the operating lever 3 and the channel 11.

[0059] Further, a second sealing ring 7 and a steam inlet pipe 8 are further included, the steam inlet pipe 8 is inserted into the steam inlet 13, and the second sealing ring 7 is sleeved on the steam inlet pipe, and the second sealing ring 7 seals the gap between the steam inlet pipe and the steam inlet 13.

[0060] Further, a third sealing ring 9 and a steam outlet pipe 10 are further included, the steam outlet pipe 10 is inserted into the steam outlet 14, and the third sealing ring 9 is sleeved on the steam outlet pipe 10, and the third sealing ring 9 seals the gap between the steam outlet pipe 10 and the steam outlet 14.

[0061] Further, the operating lever 3 is moved towards the channel 11 to push the valve core 2 to move until the head of the valve core 2 is inserted into the steam inlet 13 and the elastic member is compressed and deformed, at this time, the operating lever 3 is moved to the position, and the elastic force of the elastic member pushes the valve core 2, so that the head of the valve core 2 maintains the state of being inserted into the steam inlet 13.

[0062] A coffee machine comprising a water tank 20, a water pump 30 and a heating boiler 40, the inlet of the water pump 30 is connected to the water outlet of the water tank 20, the outlet of the water pump 30 is connected to the water inlet of the heating boiler 40, the steam outlet of the heating boiler 40 is connected to the steam inlet 13 of the steam valve.

[0063] When the user opens the steam valve

[0064] The user rotates the controller (e.g. knob) to move the control rod 3 backward along the channel 11.

[0065] When the control rod 3 moves backward, the valve core 2 is in a free state because the control rod 3 and the valve core 2 are not fixedly connected.

[0066] At this time, the steam generated by the heating boiler 40 enters the cavity 12 of the valve body 1 through the steam inlet 13, and the flowing steam exerts a force on the valve core 2 in a free state, pushing the valve core 2 to move backward.

[0067] Under the action of the steam, the bullet-shaped head 21 of the valve core 2 gradually moves away from the steam inlet 13, thereby opening the steam inlet 13, so that the steam can flow smoothly into the cavity 12 of the valve body 1 and be released through the steam outlet pipe 10.

[0068] When the user closes the steam valve

[0069] The user rotates the controller (e.g. knob) in the opposite direction to move the control rod 3 forward along the channel 11.

[0070] The control rod 3 moves forward to push the valve core 2 to move towards the steam inlet 13 until the bullet-shaped head 21 of the valve core 2 is accurately inserted into the steam inlet 13.

[0071] During this process, the silica gel elastic ball 4 is compressed, and the silica gel elastic ball 4 provides a continuous restoring force to push the valve core 2, ensuring that the valve core 2 stably blocks the steam inlet 13, thereby effectively preventing steam leakage.

Claims

1. A steam valve, comprising a valve body, a valve core, a control lever, and a resilient element, characterized in that: The valve body has a channel, and the control lever is movably disposed in the channel. The head of the control lever extends into the channel and faces the bottom wall of the channel, while the tail of the control lever extends out of the channel for connecting to the controller. The head of the control lever and the bottom wall of the channel form a cavity, and the valve body has a steam inlet and a steam outlet, which are connected to the cavity. The head of the control lever has a mounting cavity, the tail of the valve core is movably placed in the mounting cavity, and the head of the valve core extends towards the cavity. The elastic element is placed inside the mounting cavity, with one end abutting against the inner wall of the mounting cavity and the other end abutting against the tail of the valve core. The elastic element constitutes the valve core reset mechanism.

2. The steam valve according to claim 1, characterized in that: The elastic element is a silicone elastic ball.

3. The steam valve according to claim 1, characterized in that: The valve core has a bullet-shaped head and a cylindrical tail with a diameter smaller than that of the mounting cavity.

4. The steam valve according to claim 1, characterized in that: The control lever and the valve body are connected by a threaded connection, and the control lever rotates into or out of the channel.

5. The steam valve according to claim 1, characterized in that: It also includes a backstop bolt, and the control lever has a backstop groove along its circumference. The backstop bolt passes through the valve body and extends into the backstop groove, and the backstop bolt limits the range of movement of the control lever.

6. The steam valve according to claim 1, characterized in that: It also includes a first sealing ring, which is fitted onto the head of the control lever and seals the gap between the control lever and the channel.

7. The steam valve according to claim 1, characterized in that: It also includes a second sealing ring and a steam inlet pipe, wherein the steam inlet pipe is inserted into the steam inlet, and the second sealing ring is fitted onto the steam insertion pipe to seal the gap between the steam insertion pipe and the steam inlet.

8. The steam valve according to claim 1, characterized in that: It also includes a third sealing ring and a steam discharge pipe, wherein the steam discharge pipe is inserted into the steam outlet, and the third sealing ring is fitted onto the steam discharge pipe to seal the gap between the steam discharge pipe and the steam outlet.

9. The steam valve according to claim 1, characterized in that: The control lever moves in the direction of the channel, pushing the valve core to move until the head of the valve core is inserted into the steam inlet and the elastic element is compressed and deformed. At this time, the control lever moves into position, and the elastic force of the elastic element pushes the valve core so that the head of the valve core remains inserted into the closed steam inlet.

10. A coffee machine employing a steam valve as described in any one of claims 1-9, characterized in that: It includes a water tank, a water pump, and a heating boiler. The inlet of the water pump is connected to the outlet of the water tank, the outlet of the water pump is connected to the inlet of the heating boiler, and the steam outlet of the heating boiler is connected to the steam inlet of the steam valve.

Images