Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
  • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
  • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
  • F04F5/46—Arrangements of nozzles
  • F04F5/461—Adjustable nozzles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
  • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
  • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
  • B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
  • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
  • F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
  • F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
  • F16K1/12—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened
  • F16K1/123—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened with stationary valve member and moving sleeve
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
  • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
  • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K19/00—Arrangements of valves and flow lines specially adapted for mixing fluids
  • F16K19/006—Specially adapted for faucets

Definitions

• the invention relates to a jet mixer, in particular to a jet mixer used in a water supply system of a solar water heater, and belongs to the technical field of solar water heaters. Background technique
• Existing solar water heaters mainly include pressure-bearing and non-pressure-bearing types.
• the working principle of the pressure-bearing solar water heater is: the tap water enters the water tank and the heat pipe through the control switch, and the heat collecting pipe absorbs the solar radiation, transfers the heat energy to the cold water in the heat pipe through the medium, and circulates and heats the water in the water tank, because the water tank is an overall closed structure,
• the water tank of this structure is subjected to the pressure of tap water, the discharge flow rate is relatively large, and the use comfort is good.
• the water tank of the structure needs to withstand the water pressure of 7 MPa, and the heat pipe structure needs to be added inside, and the sealing requirement is high.
• the material is thicker, resulting in higher cost of the water heater.
• the working principle of the non-pressure-bearing solar water heater is:
• the tap water is connected to the inlet and outlet of the water tank (water retaining plate) through the control switch until it is filled with the water tank and the glass heat pipe, and the glass heat pipe absorbs the sunlight and heats the water in the water tank and the glass heat pipe, the water tank
• the water in the water is heated and then flows through the water inlet and outlet to the indoor water unit for the user to use.
• the water tank and the glass heat pipe of this structure only bear the water pressure at the height of the water tank, and the pressure is small. Therefore, the glass heat pipe and the water tank do not need a pressure-resistant design, and the material is saved, and the cost is lower than that of the pressure-bearing solar water heater.
• the diameter of the nozzle is fixed, and when the flow rate of the cold water and the hot water is respectively adjusted by the cold and hot water flow regulating switch, when the opening of the cold water regulating switch is smaller than the diameter of the nozzle At this time, the water pressure of the working fluid in the nozzle is lowered, so that the injection speed of the cold water working fluid is lowered, and the effect of sucking the hot water is not good, resulting in low comfort in summer use.
• Cipheral Patent Publication No. CN1 02086941 B discloses a water mixing valve including a valve body, which is provided with a valve body cold water inlet, a valve body hot water inlet, a valve body water outlet, and a nozzle connected to the valve body cold water inlet.
• the nozzle is provided with a nozzle cold water inlet and a nozzle cold water outlet, and the valve body is further provided with a hot water regulating chamber connected to the valve body hot water inlet and a water mixing chamber connected to the valve body water outlet.
• the mixing water chamber and the hot water regulating chamber are connected through a valve body hot water outlet located at one end of the hot water regulating chamber, and the mixing chamber is also connected to the nozzle through the nozzle cold water outlet.
• the nozzle When it is necessary to adjust the hot water flow, the nozzle can be screwed in or selected from the valve body to reduce or increase the cross-sectional area of the hot water inlet. At the same time, the nozzle also reduces or increases the interface agent of the cold water inlet, thereby adjusting The mixing ratio of hot and cold water.
• the nozzle has the following defects in its use:
• the needle valve moves together with the nozzle.
• the nozzle and the needle valve do not move relatively, so that the cross-sectional area of the cold water outlet remains unchanged, so that the cross-sectional area of the cold water inlet is smaller than that of the cold water outlet.
• the cross-sectional area is small, the water pressure of the cold water in the nozzle will be small, and it is difficult to achieve a better injection effect.
• the technical problem to be solved by the present invention is to provide an adjustable jet shower device which is more comfortable to use, lower in cost, and convenient to handle.
• the present invention provides an adjustable jet shower apparatus comprising a water mixer body having a cold water port, a hot water port and a water mixing outlet, the opening of the cold water port and the hot water port passing through a double linkage control valve Adjusting; a jet injection valve having a valve body, a nozzle, a needle and a water outlet, a cold water inlet and a hot water inlet being opened on the valve body, the nozzle and the needle being disposed in the valve body, the needle Provided in the nozzle, a cold water inflow space and a jet cold water outlet are formed between the nozzle and the needle, and a hot water inflow space is formed between the nozzle and the valve body, and the cold water inlet is respectively The cold water inlet is connected to the cold water inflow space, the hot water inlet is respectively connected to the hot water port and the hot water inflow space; and the shower assembly has a communication with the mixed water outlet of the water mixer body.
• a shower nozzle soft and a shower head softly connected to the shower tube the needle is fixed in a position in an axial direction of the jet injection valve, and the nozzle is at an axis of the jet injection valve
• the position in the direction is adjustable, and the adjustment of the cold water inflow space, the hot water inflow space, and the jet cold water outlet is achieved by axially adjusting the nozzle.
• the rotating member is coupled to the needle to drive the needle to rotate at the same time; the nozzle cooperates with the valve body by restricting the rotating portion, the nozzle is rotated when the rotating member drives the needle to rotate
• the valve body does not rotate, but it is movable relative to the valve body in the axial direction of the needle by the movement adjusting device.
• the valve body of the jet injection valve communicates with the throat at a front end in the direction of the cold water injection, the throat communicates with the small end of the diffusion pipe, and the large end of the diffusion pipe is in soft communication with the shower pipe.
• the shower tube soft includes an inner tube that is in communication with the diffuser tube and that is bendable, and a hose that fits outside the inner tube.
• the diffuser tube is inserted into the inner tube and fixed to the inner tube by a fixed seal.
• the shower tube is also provided with a fixing member for softly fixing the shower tube to the wall.
• the inner diameter of the throat tube ranges from 5 to 14 mm, and the length of the throat tube is 5 in the inner diameter of the tube. Within -8 times range.
• the throat has an inner diameter ranging from 6-1 to 0 mm.
• An expansion angle of 5° to 10° is formed between the outer wall of the expansion tube and the extension of the outer wall of the throat, and the diameter of the outlet of the expansion tube is 1.5 to 4 times the diameter of the inlet.
• the divergence angle of the dilation tube is a continuous expansion.
• the divergence angle of the dilation tube is a segmented expansion.
• the axial movement adjusting device includes an internal thread formed on the nozzle and an external thread formed on the rotating member and engaged with the inner screw, wherein the inner screw and the outer screw Therefore, the thread engagement stroke is greater than or equal to the axial movement stroke of the nozzle.
• the restricting rotating portion is a polygonal end portion formed on the nozzle, and an inner wall shape of the valve body is matched with the polygonal end portion.
• the nozzle has a nozzle taper, and the small end of the nozzle taper is the jet cold water outlet.
• the needle has a needle body and a needle tapered portion provided at an end of the needle body. The taper angle of the nozzle taper is larger than the taper angle of the tapered portion of the needle.
• the taper angle of the needle taper portion ranges from 20 ° to 90 °, and the taper angle of the nozzle taper portion ranges from 30. -1 00.
• the needle body is provided with a support body in a circumferential direction, and the support body cooperates with an inner wall of the nozzle to prevent the needle from shaking under the impact of cold water inflow, and a fluid passage is formed between adjacent support bodies.
• the support body is a plurality of ribs uniformly distributed around the needle main body in the circumferential direction and extending in the axial direction thereof, and the plurality of the ribs form the fluid passage therebetween.
• the rib includes a first portion and a second portion, wherein a radial dimension of the first portion is smaller than a radial dimension of the second portion, and an outer surface of the second portion and a lumen of the nozzle Cooperate.
• the length of the second portion is smaller than the length of the first portion, and the length of the first portion is not less than the length of the inlet of the nozzle in the axial direction of the needle and the axial travel of the nozzle with.
• the total cross-sectional area of the fluid passage formed between the ribs is greater than the cross-sectional area of the jet cold water outlet when injected.
• the water quantity adjustment switch includes a base mounted on the water mixer body, a valve core cooperated with the base to adjust a flow rate of cold water and a flow of hot water, and a handle for driving the rotation of the valve core, the base respectively
• the cold water port and the hot water port are communicated through a communication hole.
• the side wall of the base has a water flow introduction port communicating with an external water supply pipe, and the valve core has a water flow regulating port, and the water flow introduction port has an axial direction corresponding to the water flow regulating port.
• the adjustable jet shower device provided by the present invention, wherein the spray needle is disposed in the nozzle, Forming a cold water inflow space and a jet cold water outlet between the nozzle and the spray needle, forming a hot water inflow space between the nozzle and the valve body, wherein the cold water inlet is respectively connected to the cold water inlet and the cold water inlet flow space
• the hot water inlet is respectively connected to the hot water inlet and the hot water inflow space.
• the inflow space and the adjustment of the jet cold water outlet are specifically as follows: When the nozzle moves so that the cross section of the cold water inflow space becomes smaller, the cross section of the hot water inflow space becomes larger, thereby realizing the adjustment of the mixed water temperature with a relatively simple operation. It is important that the cross-sectional area of the jet cold water outlet is also small when the cold water inflow space section is small, thereby ensuring that the nozzle has a high water pressure inside the nozzle when the proportion of cold water is small, and has a good jetting effect. Therefore, the technical solution of the present invention achieves a better ejection effect in a relatively simple manner.
• the adjustable jet shower apparatus provided by the present invention, further comprising a sealing rotatably rotating member disposed on the valve body, the rotating member being coupled to the nozzle to drive the needle to rotate simultaneously; the nozzle passing The axial movement adjusting device is axially moved and engaged with the rotating member; the nozzle cooperates with the valve body by restricting the rotating portion, wherein the nozzle is opposite to the nozzle when the rotating member drives the needle to rotate
• the valve body does not rotate, but it is movable relative to the valve body in the axial direction of the needle under the action of the movement adjusting device.
• the needle In use, as long as the rotating member is rotated, the needle can be rotated together, because an axial movement adjusting device is disposed between the needle and the nozzle, and the nozzle is restricted by the limiting rotating member on the valve body, and cannot be Rotating, during the rotation of the needle, under the adjustment of the axial movement adjusting device, the nozzle moves axially along the needle, and then the cold water inflow space and heat through the nozzle.
• an axial movement adjusting device is disposed between the needle and the nozzle, and the nozzle is restricted by the limiting rotating member on the valve body, and cannot be Rotating, during the rotation of the needle, under the adjustment of the axial movement adjusting device, the nozzle moves axially along the needle, and then the cold water inflow space and heat through the nozzle
• the adjustment of the water inflow space and the jet cold water outlet, the ingenious design achieves a simple work.
• the valve body of the jet injection valve communicates with a throat at a front end of the cold water injection direction, and the throat communicates with a small port end of the diffusion pipe, the jet jet
• the valve body of the valve communicates with the throat at a front end in the direction of the cold water spray, the throat communicates with the small end of the reduced diameter expansion pipe, and the cold water is ejected from the jet cold water outlet along the front end of the spray needle
• the jet cold water outlet is the smallest cross section in the entire flow passage, the pressure loss before this is the smallest, so the jet cold water outlet can sufficiently convert the cold water pressure into the water discharge speed, and eject the cold water outlet from the jet.
• Cold water has a good speed.
• the throat communicates with the hot water inflow space
• a high pressure is formed around the cold water due to the high-speed injection and entrainment of the cold water, thereby sucking in the hot water, and the arrangement of the throat ensures the hot water sucked in and
• the cold water is thoroughly mixed and subjected to sufficient energy transfer;
• the inner diameter of the throat is in the range of 5-14 mm, and the length of the throat is in the range of 5-8 times its inner diameter.
• the function of the expansion tube is to reduce the flow rate of the water, and convert the kinetic energy of the mixed water at the outlet of the throat into pressure energy, and the outer wall of the expansion tube forms an extension of 5-15 ° with the extension of the outer wall of the throat.
• the expansion angle, the expansion angle continuous expansion or multi-stage expansion ensures that the speed is gradually converted into pressure, and has a good use effect.
• the ratio of the diameter of the outlet of the expansion tube to the inlet is 1. 5-4.
• the support body is a plurality of ribs uniformly distributed around the needle main body in the circumferential direction and extending along the axial direction thereof, and the plurality of the ribs are formed between each other Said fluid channel.
• the rib includes a first portion and a second portion, wherein a radial dimension of the first portion is smaller than a radial dimension of the second portion, and an outer surface of the second portion and a lumen of the nozzle Cooperate.
• the radial dimension of the first portion is less than the radial dimension of the second portion.
• the first portion corresponds to the inlet of the nozzle, and the radial dimension is smaller than the second portion.
• the water at the nozzle inlet is introduced into the fluid passage formed by the rib to ensure the fluid.
• the cross-sectional area of the channel is larger than the cross section of the jet cold water outlet of the nozzle, so that the cold water pressure is not lost before the jet cold water outlet of the nozzle, and the jet effect is good.
• the adjustable jet shower device of the present invention is used for a jet nozzle of a jet injection valve, wherein a main body of the needle body is provided with a support body for supporting the body when the needle is assembled in the nozzle of the jet injection valve
• the outer surface will cooperate with the inner cavity of the nozzle to limit the needle body, and a fluid passage is formed between the supports so that when the pressure of the fluid passing through the nozzle is large or large, and the fluid flow rate is unstable, It can effectively prevent the needle from being radial due to the smooth flow of the fluid. It is subjected to a large and uneven radial pressure to deviate from the jet cold water outlet of the nozzle or to cause a radial swing, which affects the jetting effect of the nozzle.
• the needle for the jet injection valve the support body comprises a plurality of ribs uniformly distributed around the needle body in the circumferential direction and extending along the axial direction thereof, and a plurality of ribs Forming a fluid passage to facilitate flow of the fluid, further, each of the ribs includes a first rib and a second rib, the radial dimension of the first rib being smaller than the radial dimension of the second rib, Thereby, the ejection effect of the nozzle can be further enhanced.
• the adjustable jet shower apparatus of the present invention wherein the cold water inlet on the valve body always corresponds to the inlet of the nozzle when the nozzle moves along the axial direction. Since the cold water inlet on the valve body always corresponds to the inlet of the nozzle, such that when the nozzle is moved along the axial direction, the inlet of the nozzle is always constant, and the water pressure at the nozzle inlet is always equivalent. The water pressure at the cold water inlet of the valve body ensures that the spray effect is still good when the proportion of cold water is small.
• Figure 1 is a schematic view showing the structure of a nozzle, a needle, and a rotating member of the first embodiment
• Figure 2 is a view showing the structure of the needle of the embodiment 1;
• Figure 3 is a view showing the structure of the nozzle of Embodiment 1;
• Figure 4 is a view showing the structure of the jet injection valve of Embodiment 1;
• Figure 5 is a perspective view showing the structure of the jet injection valve of Embodiment 1;
• Figure 6 is a view showing the structure of the support body on the needle of the embodiment 3;
• Figure 7 is a view showing the structure of the support body on the needle of the embodiment 2;
• Figure 8 is a perspective view showing the structure of the base of the present invention.
• Figure 9 is a perspective view showing the structure of a ceramic valve body of the present invention.
• Figure 10 is a cross-sectional view showing the soft fitting structure of the jet mixer and the shower tube of the present invention;
• Figure 11 is a cross-sectional view showing the mating structure of the shower tube soft and connector of the present invention;
• Figure 12 is an exploded perspective view showing the soft dripping assembly of the present invention.
• Figure 13 is a view showing the structural form of the diffusing pipe of Embodiment 1;
• Fig. 14 shows the structural form of the diffusing pipe of the first embodiment.
• the present embodiment provides an adjustable jet shower apparatus comprising a water mixer body A and a jet injection valve B and a shower assembly, wherein the water mixer body A has a cold water port A1, heat a nozzle A2 having a cold water inlet B1 and a hot water inlet B2, the hot water inlet B1 communicating with the cold water inlet B1, the hot water port A2 and the hot water inlet B2 Communicating, adjusting the amount of cold water and hot water entering the jet injection valve B by adjusting the opening size of the cold water port A1 and the hot water port A2, the soft shower assembly having the water mixing device body A shower tube 15 connected to the mixed water outlet of A and a flower 15 connected to the shower tube Sprinkle the nozzle 1 6.
• the opening size of the chiller A1 is adjusted by the cold water regulating switch, and the opening size of the hot water port A2 is adjusted by the hot water adjusting switch.
• the cold water regulating switch It has the same structure as the hot water regulating switch.
• the cold water regulating switch (and the hot water regulating switch) includes a base a mounted on the water mixer body A, a ceramic valve core b mated with the base a, and a drive for driving the ceramic valve core b Rotating handle c.
• the base a is columnar, and the base a has a communication hole, and communicates with the cold water port A1 (and the hot water port A2) through the communication hole, the base a A water flow introduction port a1 is opened in the side wall, and the water flow introduction port a1 is in communication with the cold water pipe.
• the ceramic valve core assembly b includes a columnar body, and a sidewall of the columnar body is provided with a cold water regulating port b1, and the columnar body is sleeved with a polygonal engaging portion and a threaded connecting portion.
• one end of the ceramic valve core b is inserted into the base a such that the water flow regulating port b1 of the ceramic valve core b axially corresponds to the water flow introduction port a1 of the base a, and passes through the polygonal snap portion.
• the handle c is rotated, and the ceramic valve core b is rotated by the rotating handle c to drive the water flow regulating port b1 on the ceramic valve core b to rotate, thereby changing the water flow regulating port b1.
• the size of the opening of the water flow introduction port a1 on the base a overlaps, and when the water flow regulating port b1 completely corresponds to the water flow introduction port a1, the amount of cold water entering the water mixer body A is the largest.
• the amount of cold water flowing from the cold water port A1 to the jet injection valve B is maximized, and when the water flow regulating port b1 and the water flow introduction port a1 are completely shifted, the water flow introduction port a1 is closed, and thus cannot By introducing cold water into the mixer body A.
• the jet injection valve B has a valve body 1, a rotary member 13, a nozzle 3, a spray needle 4, a throat pipe 6, and a diffuser pipe 7.
• the valve body 1 is a housing having a cavity.
• the cavity of the valve body 1 is provided with a nozzle 3, a needle 4 and a rotating member 13.
• the side wall of the valve 1 is provided with a cold water inlet B1 and Hot water inlet B2.
• the rotating member 13 includes a cylinder and a knob disposed at one end of the cylinder, the cylinder having a radial ⁇ portion and an axial ⁇ portion disposed along an axial direction thereof.
• the knob extends to the outside of the valve body 1, and the radial recess is fitted to the upper wall of the valve body 1 at the diameter Mounting the catching member 48 to the ⁇ portion causes the rotating member 13 to be mounted in the valve body 1 such that it cannot move relative to the axial direction of the valve body 1.
• the rotating member 13 is provided with an external thread. As shown in FIG.
• the needle 4 has a cylindrical needle main body 41, and one end of the cylindrical needle main body 41 is inserted into the axial recess of the rotating member 13, and the rotating member 13
• the rotational displacement is not generated, and can be rotated together with the needle 4 when the rotating member 13 rotates
• the other end of the needle main body 41 is provided with a needle tapered portion 42, and the needle tapered portion 42
• the inclined surface continuously decreases from the root thereof to the end of the jet jet, thereby ensuring the effect of linear jetting
• the taper angle of the needle taper portion 34 is 30 °
• the large end of the needle taper portion 42 is connected at
• the needle main body 41 is uniformly provided with a plurality of ribs 44 as support bodies in the circumferential direction, and the ribs 44 extend along the axial direction of the needle main body 41, and the ribs 44 has a first portion 44a having a radial diameter smaller than a radial diameter of the 44b, and a second portion 44b, in the present
• the axial length of the second portion 44b is smaller than the axial length of the first portion 44b, and the axial length of the first portion 44a is the inlet 35 of the nozzle 3 in the axial direction of the needle 4.
• the length of the direction and the axial direction of the nozzle 4 The sum of the strokes in order to ensure a better injection effect, the total cross-sectional area of the fluid passage 5 is larger than the cross-sectional area of the jet cold water outlet 32 of the nozzle 3.
• the axial length of the first portion 44a of the needle 4 may be greater than the length of the inlet 35 of the nozzle 3 in the axial direction of the needle 4. The sum of the axial strokes of the nozzles 4 is described. As shown in FIG.
• the nozzle 3 includes a cylindrical body having an inner cavity, and an inlet 35 for inflow of cold water is formed on a side wall of the cylindrical body, and one end of the cylindrical body is directly formed with a cavity.
• a hex nut the edge of the hex nut is snapped onto the inner wall of the valve body 1 when the nozzle 3 is mounted in the valve body 1, so that the nozzle 3 cannot be opposite to the valve body 1 rotation, therefore, the hex nut becomes a restricting rotation portion 33 that restricts the rotation of the nozzle 3, and at the other end of the cylindrical body, a nozzle taper portion 34 is formed, and the small end of the nozzle taper portion 34 is formed
• the jet cold water outlet 32 the diameter of the jet cold water outlet 32 is 6 mm, and the taper angle of the nozzle taper portion 42 is 60 °.
• the nozzle 3 is further formed with an internal thread, and when the nozzle 3 is installed in the valve body 1, the internal thread on the nozzle 3 and the external thread on the rotating member 13 A threaded engagement is formed, the internal thread and the external thread being used in combination to form the axial movement adjustment device 36, the engagement stroke of the internal thread and the external thread being greater than the axial movement of the nozzle 3.
• the taper angle of the needle taper portion 34 can be deformed within 20 ° -90 °, while the taper angle of the nozzle taper can be between 30 ° -1 00 °
• the taper angle of the needle taper portion 34 is always smaller than the taper angle of the nozzle taper portion 42.
• the diameter of the jet cold water outlet 32 may vary within a range of 3-1 0, preferably within a range of 4 mm to 6 mm.
• the jet injection valve B further includes a valve installed in the direction of the cold water jet. a throat pipe 6 on the body 1, the throat pipe 6 having a certain distance from the jet cold water outlet 32, the distance being less than or equal to the internal thread on the nozzle 3 and the said rotating member 13 The stroke of the threaded fit of the external thread.
• the end of the throat pipe 6 is formed with a throat portion of the throat tube, and the throat portion of the throat tube is adapted to cooperate with the nozzle taper portion 42, that is, the nozzle 3 and the throat portion of the throat tube 6
• the cross-sectional area formed is larger than the cross-sectional area of the inner hole of the throat pipe 6, the large-mouth end of the tapered portion of the throat is toward the nozzle taper portion 42, and the throat pipe 6 is further extended with the variable-diameter expansion pipe 7 (see Fig. 11).
• the inner diameter of the inner diameter of the diffuser tube 7 communicating with the throat pipe 6 to the end portion communicating with the water mixing port is increased.
• the inner diameter of the throat pipe 6 is 10 circles.
• the length of the throat pipe 6 is 8 times the inner diameter dimension, and the outer wall of the expansion pipe 7 forms an expansion angle of 8° with the extension line of the outer wall of the throat pipe 6, and the outlet diameter of the expansion pipe 7 is its inlet. 1.5 times the diameter.
• the inner diameter of the throat 6 may vary from 5 to 14 mm, preferably from 6 to 10, and the length of the throat 6 may be within the inner diameter of the throat 6. Change within 5-8 times range.
• the angle of expansion formed between the outer wall of the expansion tube 7 and the extension of the outer wall of the throat 6 may vary from 5 to 10 degrees, and the outlet diameter of the expansion tube 7 may be relative to the diameter of the inlet. Change in the range of 1.5-4 times. As shown in FIG.
• the function of the diffusing pipe 7 is to change a part of the kinetic energy of the mixed water at the outlet of the throat 6 into pressure energy, and in the process of energy conversion, there is diffusion loss and diffusion.
• the amount of loss is related to the distribution of the inlet flow velocity of the diffuser tube 7, the diffusion angle magnitude, and the diffusion section diameter ratio.
• the diffusion angle ⁇ is 5° -8°, but is not limited to 5° -8.
• valve body 1 When installed, the valve body 1 is sleeved on the outside of the nozzle 3, and the limiting rotating portion 33 of the nozzle 3 is engaged on the inside of the valve body 1, so that the nozzle 3 cannot be opposite
• the valve body 1 rotates, and the inlet 35 of the nozzle 3 corresponds to the cold water inlet port 1 on the valve body 1;
• the needle main body 41 of the needle 4 is inserted into the axial recess of the rotating member 13 so that the needle 4 can rotate together with the rotating member 13;
• a rotating member 13 and a needle 4 are inserted into the inner cavity of the nozzle 3 located in the valve body 1 such that the internal thread on the nozzle 3 and the rotating member 13
• the external thread forms a threaded engagement to form a jet injection spool as shown in FIG.
• the jet injection valve B includes a valve body 1, a nozzle 3, a needle 4, a throat 6, and a diffuser 7.
• a cold water inlet B1 and a hot water inlet B2 are opened in the valve body 1, and the nozzle 3 is mounted in the valve body 1 and is engaged with the inner wall of the valve body 1 by the restricting rotation portion 33.
• the needle 4 is inserted into the nozzle 3 after being engaged with the rotating member 13, so that the internal thread on the nozzle 3 and the external thread on the rotating member 13 are threadedly matched.
• a cold water inflow space 9 and a jet cold water outlet 32 are formed between the nozzle 3 and the needle 4, and a hot water inflow space 8 is formed between the nozzle 3 and the valve body 1, the cold water
• the inlet B1 is in communication with the cold water inlet A1 and the cold water inflow space 9, respectively, and the hot water inlet B2 is respectively communicated with the hot water inlet A2 and the hot water inflow space 8, the inlet 35 of the nozzle 3 and the valve body
• the cold water inlet B1 on 1 corresponds.
• the rotating member 13 In use, the rotating member 13 is rotated, the needle 4 rotates together with the rotating member 13 , and the nozzle 3 is locked in the valve body 1 by the limiting rotating portion 33.
• it can be screwed with the external thread of the rotating member 13 by the internal thread, so that the nozzle 3 can move along the axial direction of the valve body 1 when the rotating member 13 is rotated.
• the cross-sectional area of the cold water inflow space 9, the hot water inflow space 8 and the jet cold water outlet 32 is simultaneously changed, and in the process, the inlet 35 on the nozzle 3 always corresponds to the cold water inlet B1, thereby ensuring the inlet.
• the water pressure at 35 is always equivalent to the water pressure at the cold water inlet B1 and the cold water port A1.
• the inlet 35 on the nozzle 3 and the cold on the valve body 1 Corresponding to the water inlet B1 means that the water pressure at the inlet 35 of the nozzle 3 is always in phase with the water pressure at the cold water inlet B1 of the valve body 1 throughout the axial movement of the nozzle 3. Correspondingly, that is, the inlet 35 of the nozzle 3 always has a water pressure that ensures a good injection effect. In order to satisfy this technical effect, during the axial movement of the nozzle 3, the inlet 35 of the nozzle 3 is always located within the range of the cold water inlet B1 of the valve body 1, or the valve body 1 The cold water inlet B1 is always located within the inlet 35 of the nozzle 3.
• the pressurizing section 31 is cylindrical, and its diameter is not less than or slightly smaller than the diameter of the jet cold water outlet 32 of the nozzle 3, where "not less than "When the needle taper portion 34 is fully engaged with the jet cold water outlet 32, the jet cold water outlet 32 is completely closed to prevent cold water from being ejected from the jet cold water outlet 32.
• the diameter of the pressurizing section 31 is slightly different from the diameter of the jet cold water outlet 32, that is, when the needle taper portion 34 and the jet cold water outlet 32 are 32.
• the full fit there is a slight gap between the outer circumferential surface of the pressurized section 31 and the inner circumferential surface of the jet cold water outlet 32, although a small amount of cold water can be ejected from the jet cold water outlet 32 through the gap, but flows through the nozzle 3
• the slight effect of hot water on the outer wall is negligible.
• the jet direction of the needle taper portion 34 gradually decreases, and its length is less than or equal to the movable stroke of the nozzle 3.
• the adjustable jet shower device of the present invention has an important influence on the effect of the cold water jet of the adjustable jet shower device on the effect of the hot water jet of the adjustable jet shower device.
• the test proves that the overall structure of the adjustable jet shower device of the present embodiment Combining the specific parameters in the above embodiments, it has a very good negative pressure adsorption effect when the cold water volume is small.
• Table 1 shows that when the temperature is adjusted to the intermediate state, in this embodiment
• the overall structure of the adjustable jet shower unit combined with specific parameters also has a very good negative pressure adsorption effect when used. Table 1
• this embodiment is an improvement on the adjustable jet shower apparatus provided in the embodiment 1, and the main improvement is that the support body of the needle 4 has a different structure.
• the support body is an annular support plate 45 disposed on the needle main body 41, and a plurality of diversions serving as the fluid passage 5 are formed on the surface of the annular support plate 45. Hole 46. The cold water inflow is unobstructed, and the needle 4 can be uniformly supported.
• this embodiment is an improvement on the basis of the adjustable jet shower apparatus provided in Embodiment 1, and the main improvement is that the support body of the spray needle 4 adopts a different structure.
• the support body is a ring 43 which is connected to the needle main body 41 by a plurality of ribs 40, and the fluid passage 5 is formed between the ribs 40. This arrangement not only ensures the smooth flow of cold water, but also supports the needle 4 uniformly.
• This embodiment is an improvement on the basis of the adjustable jet shower apparatus provided in Embodiment 1, and the main improvement is that the restricting rotation portion 33 on the nozzle 3 adopts a different structure.
• the restricting rotation portion 33 is a flange circumferentially disposed at an end portion of the nozzle 3, and a sliding fit with the flange is provided on the inner wall of the valve body 1 in the axial direction. Guide groove.
• This embodiment is an improvement on the basis of the adjustable jet shower apparatus provided in Embodiment 1, and the main improvement is that the restricting rotation portion 33 on the nozzle 3 adopts a different structure.
• the restricting rotation portion 33 is a flange provided on the inner wall of the valve body 1, and a sliding fit with the flange is provided on the end portion of the nozzle 3 in the axial direction.
• the guide groove is a flange provided on the inner wall of the valve body 1, and a sliding fit with the flange is provided on the end portion of the nozzle 3 in the axial direction.
• the shower tube soft 15 of the shower assembly includes an inner tube 151 which is in communication with the diffuser tube 7 and is bendable, and is disposed outside the inner tube. a hose 152 and a shower water inlet passage 153 for connecting the shower head 16 , the inner tube 151 is fixedly coupled to the hose 152 , and the diffusion tube 7 is inserted into the inner tube In 151, and fixed to the inner tube 1 51 by a fixed seal 18 such as a steel sleeve.
• a fixed seal 18 such as a steel sleeve.
• the cross-sectional area of the shower water inlet passage 153 is not less than the cross-sectional area of the inner tube 151, and preferably the cross-sectional area of the shower water inlet passage 153 is larger than the cross-section of the inner tube 151. area.
• the shower water inlet passage 153 is used to connect the shower head 16 .
• connection can be understood as “installation”, so the inner diameter and the inner diameter of the shower water inlet passage 153
• the shower tube of the shower head 16 has an inner diameter, and the shower tube is a pipe for the water to pass through the shower head 16.
• the inner diameter of the shower water inlet passage 153 and the shower tube is not smaller than the inner diameter of the inner tube 151, and the arrangement is compared with the shower water inlet passage 153 and the flower.
• the inner diameter of the sprinkler tube is smaller than the arrangement of the inner tube 151, so that the cold water jet in the embodiment is weak to the hot water suction force, that is, the jet flow effect is poor.
• the shower tube soft 15 is further provided with a solid for fixing the shower tube soft 15 to the wall.
• the fixing member 17 is in the embodiment, the fixing member 17 is a shower seat assembly, and the shower seat assembly and the shower tube 15 can be made into an integral structure or a component structure.
• the shower tube soft 15 may be directly connected to the shower head 16 or may be connected to the shower head 16 through a connecting head 19, and the connecting head 19 is connected to The shower tube soft 15 is between the shower head 16 and the shower head 16.
• the connecting head 19 includes a connecting tube 191 that is inserted into the inner tube 151 at one end and a shower head at the other end.
• the connecting tube 91 is preferably made of a plastic material, but is not limited to a plastic material, and may be
• the outer wall portion of the connecting tube 191 is formed with a mounting external thread; the connecting head 19 further includes a nut 192 for fixing the connecting tube together with the shower head, the mounting of the nut 192
• the internal thread cooperates with the externally mounted thread of the connecting tube 191 such that the shower head 16 is securely mounted on the connector, and the threaded engagement can effect axial adjustment of the showerhead 16.
• Embodiment 6 This embodiment is an improvement on the basis of the jet water mixer provided in Embodiment 1, and the main improvement is that the restricting rotation portion 33 on the nozzle 3 adopts a different structure.
• the restricting rotation portion 33 is a flange provided on an inner wall of the valve body 1 and a groove spaced apart on the flange, and the end of the nozzle 3 is along an axis A guide groove that is slidably fitted to the flange and a boss that engages with the groove.
• Embodiment 7 As shown in Fig. 14, this embodiment is an improvement on the basis of the jet water mixer provided in Embodiment 1, and the main improvement is: an extension of the outer wall of the expansion pipe 7 and the outer wall of the throat pipe 6 The expansion angle between the lines is increased in sections, that is, the expansion tube 7 is in a segmented expansion manner.
• Embodiment 8 This embodiment is an improvement on the basis of Embodiment 1, and the improvement is that the axial movement The device 36 does not use the cooperation of the external thread and the internal thread.
• the axial movement adjusting device 36 is a rack and a gear that are mutually coupled, that is, the rack 3 is provided with the rack, and the rotating member 1 3 interlocks with the gear to drive the nozzle 3 to move axially.
• Embodiment 9 This embodiment is an improvement on the basis of Embodiment 1, and the improvement is that the axial movement adjusting device 36 adopts a matching structure of a helical gear and a rack, and can convert the rotational motion of the helical gear into a rack.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Nozzles (AREA)

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• 2013
  • 2013-04-27 CN CN201310153955.6A patent/CN103769320B/zh not_active Expired - Fee Related
  • 2013-09-26 WO PCT/CN2013/084300 patent/WO2014173075A1/zh active Application Filing
  • 2013-09-26 IN IN787MUN2014 patent/IN2014MN00787A/en unknown

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