WO2019100764A1 - 液体泵 - Google Patents

液体泵 Download PDF

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Publication number
WO2019100764A1
WO2019100764A1 PCT/CN2018/100161 CN2018100161W WO2019100764A1 WO 2019100764 A1 WO2019100764 A1 WO 2019100764A1 CN 2018100161 W CN2018100161 W CN 2018100161W WO 2019100764 A1 WO2019100764 A1 WO 2019100764A1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic mechanism
liquid pump
elastic
base
push plate
Prior art date
Application number
PCT/CN2018/100161
Other languages
English (en)
French (fr)
Inventor
丁要武
Original Assignee
丁要武
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 丁要武 filed Critical 丁要武
Priority to EP18882021.1A priority Critical patent/EP3715280A4/en
Priority to US16/765,572 priority patent/US11203026B2/en
Priority to JP2020545414A priority patent/JP7199444B2/ja
Publication of WO2019100764A1 publication Critical patent/WO2019100764A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1009—Piston pumps actuated by a lever
    • B05B11/1011—Piston pumps actuated by a lever without substantial movement of the nozzle in the direction of the pressure stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means
    • B05B11/1056—Actuation means comprising rotatable or articulated levers
    • B05B11/1057—Triggers, i.e. actuation means consisting of a single lever having one end rotating or pivoting around an axis or a hinge fixedly attached to the container, and another end directly actuated by the user
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0089—Dispensing tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem

Definitions

  • the present invention relates to a liquid pump, where the term "liquid” includes liquid or semi-liquid products such as liquid, semi-liquid, and the like.
  • a container is typically included on the container for dispensing the product in the container.
  • the user pumps the product by applying pressure to the actuator on the liquid pump.
  • the reset mechanism mounted on the liquid pump returns the actuator to its unpressed position, ie , reset the actuator for the next pumping.
  • a reset mechanism is a plastic spring in the shape of a bellows.
  • a bellows-shaped spring 1300 is provided between the indenter 1100 of the liquid pump 1000 and the mouthpiece 1200.
  • the indenter 1100 is pressed to cause the indenter 1100 to move downward against the spring force of the spring 1300.
  • the pressure on the indenter 1100 is removed, so that the indenter 1100 is at the spring 1300.
  • the spring force acts upwards and returns to the initial position.
  • the spring force is insufficient. If the product to be pumped is relatively thick or the pumping amount is relatively large, the spring head 1100 is insufficient due to insufficient spring force. Rebounding can be difficult and may not even rebound. This will affect the continued use of the product container.
  • the current common practice is to preload the bellows spring before use to subject it to a certain preload deformation. However, this causes other problems. For example, if the bellows spring is always in the preload state, the yield deformation will occur after a long time, so that the amount of preload deformation caused by the original preload disappears. In this way, after a long period of storage or use, there is still a problem that the rebound cannot be in place.
  • a sleeve type spring As shown in FIG. 29, a sleeve spring 2300 is formed on the indenter 2100 of the liquid pump 2000, and the lower end of the sleeve spring 2300 abuts on the dental mouthpiece 2200, and is provided with a plurality of longitudinal slits, thereby An elastic strip is formed between the adjacent slits.
  • the elastic strip When the pressing head 2100 is pressed, the elastic strip is pressed and bent, and when the pressure is removed, the elastic strip returns to the vertical unstressed state by the elastic force thereof, so that the pressing head 2100 rebounds.
  • the present invention has been made in view of the above technical problems of the prior art, and an object thereof is to provide a liquid pump of improved structure in which a large downforce is not required to press down the head of the liquid pump, and Avoid elastic deformation of the elastic strip due to prolonged stress.
  • the liquid pump of the present invention includes a movable unit and a fixed unit, the movable unit is movable relative to the fixed unit to pump the product, and an elastic mechanism is disposed between the movable unit and the fixed unit, the elastic mechanism including at least one elastic strip.
  • the elastic strip applies a biasing force to the movable unit to reset the movable unit after pumping the product
  • the liquid pump further includes an elastic mechanism adjusting member formed on the elastic mechanism or connected to the elastic mechanism, and The resilient mechanism adjustment member is moveable between a first position in which the resilient strip of the resilient mechanism is in a relaxed state and a second position in which the resilient strip of the resilient mechanism is in a preloaded state.
  • the elastic strip of the elastic mechanism is in a relaxed state when not in use, and in use, the elastic strip can be preloaded first. In this way, it is not necessary to press the indenter with too much pressing force during use, and at the same time, the elastic strip can be prevented from being deformed by long-term compression when not in use, resulting in failure of the liquid pump.
  • the elastic mechanism is made of a non-metallic material having elasticity.
  • the material used to manufacture the elastic mechanism may be an elastic plastic, rubber, or the like.
  • liquid pump is a push-type liquid pump, wherein the movable unit includes a pressure head and a piston rod connected to the pressing head; the fixing unit includes a mouthpiece and a cylinder connected to the mouthpiece.
  • the specific structure of the elastic mechanism adjusting member may take the following embodiments.
  • the elastic mechanism includes an upper base and a lower base, the upper base rotatably abuts against the indenter, the lower base rotatably abuts against the mouthpiece; and the elastic mechanism adjusting member includes a lower base a seat, wherein the lower surface of the lower base is formed with a convex support surface and a concave support surface, and a protrusion is formed on the dental sleeve, and when the elastic mechanism adjustment member is in the first position, the concave support surface cooperates with the convex piece when elastic When the mechanism adjusting member is in the second position, the convex supporting surface cooperates with the protrusion; and the paddle is formed on the lower base, and the elastic mechanism adjusting member is between the first position and the second position by the operation of the paddle Turn.
  • the elastic mechanism adjusting member may also include an upper base, wherein the upper surface of the upper base is formed with a convex supporting surface and a concave supporting surface, and a convex portion is formed at a lower portion of the pressing head, when the elastic mechanism adjusting member is at the first position In the position, the concave bearing surface cooperates with the convex block, and when the elastic mechanism adjusting member is in the second position, the convex supporting surface cooperates with the convex block; and the picking piece is formed on the upper base, and the operation of the picking piece is realized The rotation of the resilient mechanism adjustment member between the first position and the second position.
  • the elastic mechanism includes a lower base, and a lower support surface and a concave support surface are formed on the lower surface;
  • the elastic mechanism adjusting member includes a lower base and a release ring, and the release ring is located at the lower base and Between the braces, and the release ring is formed with a protrusion.
  • the elastic mechanism adjustment member is in the first position, the protrusion cooperates with the concave support surface, and when the elastic mechanism adjustment member is in the second position, the protrusion and the convex support surface Contact;
  • the release ring is further formed with at least one paddle for effecting rotation of the resilient mechanism adjustment member between the first position and the second position by operation of the paddle.
  • the elastic mechanism may include an upper base, and the upper surface of the upper base is formed with a convex support surface and a concave support surface; the elastic mechanism adjusting member includes an upper base and a release ring, and the release ring is located on the upper base and the indenter And a bump is formed on the release ring.
  • the elastic mechanism adjusting member When the elastic mechanism adjusting member is in the first position, the convex piece cooperates with the concave supporting surface, and when the elastic mechanism adjusting member is in the second position, the convex piece contacts the convex supporting surface.
  • the relaxation ring is also formed with at least one paddle for effecting rotation of the resilient mechanism adjustment member between the first position and the second position by operation of the paddle.
  • the elastic mechanism includes a lower base
  • the elastic mechanism adjusting member includes a push plate disposed between the lower base and the mouthpiece, the push plate including: two end plates at both ends and extending between the end plates a side plate, the upper surface of the side plate is formed in a step shape, including an upper step surface and a lower step surface, and the push plate is linearly movable between the first position and the second position, in the first position, the lower step surface and The support faces of the lower base are in contact, and in the second position, the upper step faces are in contact with the support faces of the lower base.
  • a transition surface is further included between the upper step surface and the lower step surface of the push plate, and the transition surface is a slope surface or a curved surface.
  • the resilient mechanism adjustment member automatically effects movement between the first position and the second position.
  • the elastic mechanism adjusting member includes a sleeve formed on the elastic mechanism, and at least one convex piece is formed on the inner surface of the sleeve; a guiding groove is formed on the upper sleeve of the dental sleeve, and the convex block accommodates
  • the guide groove includes an inclined portion at the upper portion and a vertical portion at the lower portion; and the elastic mechanism includes an upper base, the upper surface of the upper base is formed with a convex platform and a concave platform; and a lower portion of the ram is formed a ram bump; wherein, when the ram is at a top dead center position of the stroke, the sleeve is in the first position, the concave platform of the upper pedestal is in contact with the ram bump; and the bulge is made by pressing the ram Interacting with the inclined portion of the guiding groove to rotate the sleeve from the first position to the second position.
  • the elastic mechanism adjusting member includes a push plate disposed between the elastic mechanism and the pressing head, the push plate includes a plate body and a first cantilever and a second cantilever that are suspended downward from the plate body, the plate body
  • the lower surface is formed in a stepped shape, including an upper step surface and a lower step surface; and the upper sleeve of the mouthpiece is provided with: a first guiding wedge, the first guiding wedge corresponding to the first cantilever and having an upwardly facing inclined surface And a second guiding wedge, the second guiding wedge corresponding to the second cantilever and having a downwardly facing slope; wherein, when the indenter is at the top dead center of the stroke, the push plate is in the first position, at the first In the position, the lower step surface of the push plate contacts the upper base of the elastic mechanism to relax the elastic strip; and the first cantilever contacts and interacts with the first guiding wedge as the pressing head moves downward, Moving the push plate from the first position to the second position, in the second
  • a claw is formed on the free end of the first cantilever and/or the second cantilever, and the claw acts on the first guiding wedge and/or the second guiding wedge.
  • the elastic mechanism adjusting member includes a push plate disposed between the lower base of the elastic mechanism and the mouthpiece, the upper surface of the push plate includes an upper step surface and a lower step surface; and the piston rod is formed with: a first guiding wedge, the first guiding wedge comprising a downwardly facing bevel; and a second guiding wedge comprising an upwardly facing bevel; wherein the push plate is when the indenter is at the top dead center of the stroke In the first position, in the first position, the lower step surface of the push plate contacts the lower base, so that the elastic strip is in a relaxed state, and as the indenter moves downward, the first guiding wedge contacts the push plate and Interacting to move the push plate from the first position to the second position.
  • the upper step surface of the push plate contacts the lower base to preload the elastic strip; and as the indenter moves upward, the first
  • the two guiding wedges are in contact with the push plate and interact to return the push plate from the second position to the first position.
  • a convex portion is formed on the lower surface of the lower base, and the convex portion is in contact with the upper step surface or the lower step surface of the push plate. In this way, the frictional resistance between the lower base and the push plate can be reduced, facilitating the movement of the push plate between the first position and the second position.
  • the liquid pump is a push type liquid pump
  • the movable unit includes a pressing head
  • the pressing head includes a lower sleeve
  • the fixing unit includes: a dental sleeve
  • the cylinder the cylinder is connected with the dental sleeve
  • the cylinder is formed with a convexity.
  • the elastic mechanism includes an upper base and a lower base, the lower base abuts against the shoulder, and the upper sleeve and the lower sleeve of the indenter a relaxation ring is disposed between the lower ends; a convex support surface and a concave support surface are formed on the lower surface of the relaxation ring, wherein when the release ring is in the first position, the concave support surface is in contact with the upper base, and the elastic strip is in a relaxed state, And when the release ring is in the second position, the convex support surface is in contact with the upper base, and the elastic strip is in a preloaded state; wherein at least one groove is formed on the inner surface of the release ring, and at least one is formed on the piston rod a guiding rib, the guiding rib comprising an upper inclined portion and a lower vertical portion, the groove being fitted on the guiding rib, and when the groove is matched with the
  • the positions at which the above-mentioned ridges and grooves are arranged may be interchanged.
  • at least one protrusion is formed on an inner surface of the relaxation ring
  • at least one guide groove is formed on the piston rod
  • the guide groove includes an inclined portion of the upper portion and a vertical portion of the lower portion
  • the protrusion is fitted in the guide groove, when When the lug cooperates with the inclined portion, the downward movement of the indenter causes the release ring to rotate from the first position to the second position, and the upward movement of the indenter causes the release ring to rotate from the second position back to the first position.
  • the elastic mechanism includes an upper base
  • the elastic mechanism adjusting member includes at least an upper base, wherein the upper base is linearly movable between the first position and the second position, and the elastic strip is when the upper base is in the first position
  • the distance between the two ends is L1.
  • the distance between the two ends of the elastic strip is L2, where L1>L2.
  • the lower base of the elastic mechanism can be used as a linearly moveable member, that is, the elastic mechanism adjustment member includes at least a lower base, wherein the lower base can linearly move between the first position and the second position, When the seat is in the first position, the distance between the two ends of the elastic strip is L1, and when the lower base is in the second position, the distance between the two ends of the elastic strip is L2, where L1>L2.
  • the liquid pump can also be a spray gun type liquid pump, wherein the fixed unit comprises a cylinder, the movable unit comprises a piston rod, the piston rod is movably sleeved in the cylinder, and the piston rod is provided with an actuating member for actuating the piston rod relative to Cylinder movement;
  • the elastic mechanism comprises an elastic strip, the first end of the elastic strip is fixed on the piston rod, and the second end of the elastic strip is fixed on the fixing unit
  • the elastic mechanism adjusting member comprises a relaxation plate sleeved on the piston rod, The relaxation plate abuts the first end of the elastic strip, the surface of the relaxation plate facing the elastic mechanism is formed with a convex surface and a concave surface, and the relaxation plate is rotatable between the first position and the second position, in the first position, The concave surface is in contact with the first end of the relaxation plate to relax the elastic strip. In the second position, the convex surface is in contact with the first end of the relaxation plate, so that the
  • the actuating member is a pivoting trigger or the actuating member is a pressing portion that is coaxially mounted on the piston rod.
  • Fig. 1a is a front elevational view of a liquid pump of a first embodiment of the present invention.
  • Fig. 1b is a cross-sectional view of the liquid pump taken along line A-A of Fig. 1a, wherein the liquid pump is in a state of being unpressed.
  • Figure 1c is another cross-sectional view of the liquid pump of Figure 1a with the liquid pump in a depressed state.
  • Fig. 2a is a perspective view of the elastic mechanism in the liquid pump of the first embodiment.
  • Figure 2b is a cross-sectional view of the resilient mechanism of Figure 2a.
  • Fig. 3a is a perspective view of a mouthpiece in the liquid pump of the first embodiment.
  • Figure 3b is a top plan view of the mouthpiece of Figure 3a.
  • Figure 3c is a cross-sectional view taken along line B-B of Figure 3b.
  • Figure 4a is a perspective view of a liquid pump of a second embodiment of the present invention.
  • Figure 4b is a cross-sectional view of the liquid pump of Figure 4a with the liquid pump in a state of being unpressed.
  • Figure 4c is another cross-sectional view of the liquid pump of Figure 4a with the liquid pump in a depressed state.
  • Fig. 5a is a perspective view of the elastic mechanism in the liquid pump of the second embodiment.
  • Figure 5b is a cross-sectional view of the resilient mechanism of Figure 5a.
  • Fig. 6a is a perspective view of a relaxation ring in the liquid pump of the second embodiment.
  • Figure 6b is a bottom plan view of the relaxation ring of Figure 6a.
  • Figure 6c is a side view of the relaxation ring of Figure 6a.
  • Figure 7a is a perspective view of a liquid pump of a third embodiment of the present invention.
  • Figure 7b is a cross-sectional view of the liquid pump of Figure 7a with the liquid pump in a state of being unpressed.
  • Figure 7c is another cross-sectional view of the liquid pump of Figure 7a with the liquid pump in a depressed state.
  • Fig. 8a is a perspective view of the elastic mechanism in the liquid pump of the third embodiment.
  • Figure 8b is a front elevational view of the resilient mechanism of Figure 8a.
  • Figure 8c is a side view of the resilient mechanism of Figure 8a.
  • Fig. 9a is a perspective view of a push plate in the liquid pump of the third embodiment.
  • Figure 9b is a top plan view of the push plate of Figure 9a.
  • Figure 9c is a cross-sectional view taken along line C-C of Figure 9b.
  • Figure 10a is a perspective view of a liquid pump of a fourth embodiment of the present invention.
  • Figure 10b is a cross-sectional view of the liquid pump of Figure 10a with the liquid pump in a state of being unpressed.
  • Figure 10c is another cross-sectional view of the liquid pump of Figure 10a with the liquid pump in a depressed state.
  • Figure 11a is a perspective view of the elastic mechanism in the liquid pump of the fourth embodiment, wherein the elastic mechanism is provided with a sleeve.
  • Figure 11b is a front elevational view of the resilient mechanism of Figure 11a.
  • Figure 11c is a cross-sectional view taken along line D-D in Figure 11b.
  • Fig. 12a is a perspective view of a mouthpiece of the liquid pump of the fourth embodiment.
  • Figure 12b is a front elevational view of the mouthpiece of Figure 12a.
  • Figure 13a is a bottom perspective view of the indenter of the liquid pump of the fourth embodiment.
  • Figure 13b is a cross-sectional view of the indenter shown in Figure 13a.
  • Figure 14a is a front elevational view of a liquid pump of a fifth embodiment of the present invention.
  • Figure 14b is a cross-sectional view of the liquid pump of Figure 14a with the liquid pump in a state of being unpressed.
  • Figure 14c is another cross-sectional view of the liquid pump of Figure 14a with the liquid pump in a depressed state.
  • Fig. 15a is a plan view of a push plate of the liquid pump of the fifth embodiment.
  • Figure 15b is a side elevational view of the push plate of Figure 15a.
  • Figure 15c is a cross-sectional view taken along line E-E in Figure 15a.
  • Fig. 16a is a plan view of a mouthpiece of the liquid pump of the fifth embodiment.
  • Figure 16b is a cross-sectional view taken along line F-F in Figure 16a.
  • Figure 17a shows a cross-sectional view of a liquid pump of a sixth embodiment of the present invention, wherein the liquid pump is in a state of being unpressed.
  • Figure 17b is another cross-sectional view of the liquid pump of Figure 17a with the liquid pump in a depressed state.
  • Figure 18a is a bottom view of the piston rod of the liquid pump of the sixth embodiment.
  • Figure 18b is a cross-sectional view taken along line G-G in Figure 18a.
  • Fig. 19a is a plan view of a push plate of the liquid pump of the sixth embodiment.
  • Figure 19b is a cross-sectional view taken along line H-H in Figure 19a.
  • Figure 20a shows a cross-sectional view of a liquid pump of a seventh embodiment of the present invention, wherein the liquid pump is in a state of being unpressed.
  • Figure 20b is another cross-sectional view of the liquid pump of Figure 20a with the liquid pump in a depressed state.
  • Figure 21a is a perspective view of a piston rod of the liquid pump of the seventh embodiment.
  • Figure 21b is a front elevational view of the piston rod of Figure 21a.
  • Figure 21c is a bottom plan view of the piston rod of Figure 21a.
  • Fig. 22a is a bottom perspective view of the relaxation ring of the liquid pump of the seventh embodiment.
  • Figure 22b is a top perspective view of the relaxation ring of Figure 22a.
  • Figure 22c is a top plan view of the relaxation ring of Figure 22a.
  • Figure 22d is a side view of the relaxation ring of Figure 22a.
  • Figure 23 is a side view of a liquid pump of an eighth embodiment of the present invention.
  • Figure 24 is a perspective view of the release lever of the liquid pump of the eighth embodiment.
  • Fig. 25 shows a modified structure of the liquid pump of the eighth embodiment.
  • Figure 26a is a side view of a liquid pump of a ninth embodiment of the present invention, in which the elastic strip is in a relaxed state.
  • Fig. 26b is another side view of the liquid pump of the ninth embodiment, in which the elastic strip is in a preloaded state.
  • Figure 27a is a perspective view of the elastic mechanism of the liquid pump of the ninth embodiment.
  • Figure 27b is a cross-sectional view of the elastic mechanism of Figure 27a.
  • Figure 27c is a top plan view of the resilient mechanism of Figure 27a.
  • Figure 28 shows a prior art liquid pump.
  • Figure 29 shows another prior art liquid pump.
  • FIG. 1a to 3c show a liquid pump 100 of a first embodiment of the present invention.
  • the type of the liquid pump 100 is a push pump
  • FIG. 1a shows a front view of the liquid pump 100
  • FIG. 1b shows a cross-sectional view taken along line AA of FIG. 1a, in which the liquid pump 100 is in an unpressed state
  • 1b is a cross-sectional view of the liquid pump 100 in a pressed state.
  • a liquid pump 100 in the form of a push pump includes a ram 110 and a mouthpiece 120 with a resilient mechanism 130 disposed between the ram 110 and the mouthpiece 120.
  • the elastic mechanism 130 is made of a resilient non-metallic material such as elastic plastic, rubber or the like.
  • a piston rod 140 is coupled to the indenter 110, and a piston 160 is attached to the lower end of the piston rod 140.
  • the socket 120 is coupled to the cylinder 150.
  • the piston rod 140 passes through the opening at the upper end of the mouthpiece 120 into the interior of the mouthpiece 120 and into the cylinder 150.
  • the user applies a downward pressing force to the indenter 110, causing the indenter 110 and the piston rod 140 connected to the indenter 110 to move downward against the elastic force of the elastic mechanism 130, thereby bringing the cylinder 150 into the cylinder 150.
  • the product liquid is pumped out.
  • the pressing force applied to the ram 110 is removed, and the ram 110 and the piston rod 140 are returned upward to the standby position by the elastic force of the elastic mechanism 130. Thereby, the product is pumped out during the reciprocation of the ram 110.
  • the elastic mechanism 130 is made of an elastic material such as plastic, and is switchable between a first position and a second position, in which the elastic mechanism 130 is in an unloaded relaxed state, and in the first In the second position, the elastic mechanism 130 is in a preloaded state.
  • the resilient mechanism 130 includes at least one, and preferably two or more, elastic strips 131.
  • the elastic strip 131 is curved in an unstressed state, so that the required downforce at the top dead center of the stroke of the ram 110 is not excessively generated.
  • An upper base 132 and a lower base 133 are respectively coupled to both ends of the elastic strip 131, and the upper base 132 and the lower base 133 are annular.
  • the upper base 132 is sleeved on the lower sleeve of the indenter 110, and is relatively rotatably abutted against the indenter 110
  • the lower base 133 is sleeved on the upper sleeve of the dental sleeve 120, and Abutting against the mouthpiece 120 in a relatively rotatable manner, a biasing force is applied between the indenter 110 and the mouthpiece 120 to reset the indenter 110 relative to the mouthpiece 120.
  • the lower surface of the lower base 133 includes a convex support surface 134 and a concave support surface 135.
  • at least one bump 121 (two bumps are shown) is provided on the mouthpiece 120.
  • a paddle 136 is further disposed on the elastic mechanism 130, for example, a paddle 136 is disposed on the lower base 133 as shown in the drawing.
  • the user can operate the paddle 136 to rotate the resilient mechanism 130 between the first position and the second position to switch the resilient strip 131 of the resilient mechanism 130 between the relaxed state and the preloaded state.
  • the elastic mechanism 130 When the liquid pump 100 is in the unused state, the elastic mechanism 130 is in the first position, and the concave bearing surface 135 of the lower base 133 of the elastic mechanism 130 is opposite to the protrusion 121 on the dental cap 120, at this time, the elastic mechanism 130 The distance between the upper base 132 and the lower base 133 is large, so that the elastic strip 131 is in a relaxed state.
  • the paddles 136 are operated to move the resilient mechanism 130 from the first position to the second position relative to the indenter 110 and/or the cuff 120, at which time the lower base 133 of the resilient mechanism 130
  • the convex bearing surface 134 is in contact with the bump 121, causing the lower base 133 to rise, so that the distance between the upper base 132 and the lower base 133 is shortened, and the elastic strip 131 undergoes preloading.
  • the paddles 136 are operated to rotate the resilient mechanism 130 from the second position back to the first position to return the elastic bar 131 from the preloaded state to the relaxed state.
  • the elastic strip 131 of the elastic mechanism 130 when the liquid pump 100 is used, the elastic strip 131 of the elastic mechanism 130 is in a preloaded state, and when the liquid pump 100 is not used, the elastic strip 131 is in a relaxed state, so that the elastic mechanism 130 can be secured. It has sufficient elasticity when in use, and the relaxed state of the elastic strip 131 when not in use can prevent the elastic strip 131 from yielding deformation due to long-term stress and prolong its service life.
  • the relaxation and preloading of the elastic strip 131 is achieved by the alternating engagement and contact of the convex support surface 134 of the lower base 133 and the concave support surface 135 with the projections 121 on the mouthpiece 120.
  • a convex supporting surface and a concave supporting surface may also be formed on the upper surface of the upper base 132, and matching projections may be formed at the lower portion of the ram 110.
  • the liquid pump 200 includes a ram 210, a mouthpiece 220, and a resilient mechanism 230.
  • the resilient mechanism 230 includes an upper base 232, a lower base 233, and at least one resilient strip 231 coupled between the upper base 232 and the lower base 233.
  • the upper base 232 and the lower base 233 are annular.
  • the lower surface of the lower base 233 of the elastic mechanism 230 includes a convex support surface 234 and a concave support surface 235.
  • the liquid pump 200 of the second embodiment is different from the liquid pump 100 of the first embodiment in that the liquid pump 200 further includes a relaxation ring 240.
  • the release ring 240 includes an annular support seat 242 on which at least one paddle 241 is disposed (two paddles 241 are shown). Also, at least one, preferably two or more, projections 243 are formed on the surface of the support seat 242 facing the elastic mechanism 230.
  • the upper base 232 of the resilient mechanism 230 abuts against the ram 210, and a relaxation ring 240 is interposed between the lower base 233 of the resilient mechanism 230 and the mouthpiece 220.
  • the relaxation ring 240 is rotatable between a first position and a second position.
  • the projection 243 on the support seat 242 of the release ring 240 corresponds to the concave support surface 235 on the lower base 233 of the resilient mechanism 230 such that the upper base 232 and the lower base 233 of the resilient mechanism 230
  • the distance between the elastic strips 231 is large, and at the second position, the projections 243 on the support seats 242 of the release ring 240 are in contact with the convex support surfaces 234 on the lower base 233 of the elastic mechanism 230.
  • the lower base 233 is raised, so that the distance between the upper base 232 and the lower base 233 of the elastic mechanism 230 is reduced, and the elastic strip 231 is preloaded.
  • a convex supporting surface and a concave supporting surface may be provided on the upper surface of the upper base 232, and the relaxing ring 240 is disposed between the upper base 232 and the ram 210.
  • the release ring 240 When the liquid pump 200 is in the unused state, the release ring 240 is in the first position, at which time the position of the projection 243 on the support seat 242 of the release ring 240 corresponds to the concave support surface 235 of the lower base 233 of the resilient mechanism 230. Thus, the elastic strip 231 is in a relaxed state.
  • the user can operate the paddles 241 of the release ring 240 to rotate the release ring 240 from the first position to the second position, causing the tabs 243 of the release ring 240 and the lower portion of the resilient mechanism 230.
  • the convex bearing faces 234 on the base 233 are in contact, thereby raising the lower base 233, thereby causing the elastic strips 231 to be in a preloaded state.
  • the user again operates the paddles 241 of the release ring 240 to rotate the release ring 240 from the second position to the first position, thereby relaxing the position of the projections 243 of the ring 240 again with the concave bearing surface.
  • the elastic strip 231 is returned to the relaxed state.
  • FIG. 7a to 9c show a liquid pump 300 of a third embodiment of the present invention.
  • the features that are not included in the previous embodiments are mainly described for the sake of brevity, and the same technical features as the previous embodiments will not be described in detail.
  • the liquid pump 300 includes a ram 310, a mouthpiece 320, and a resilient mechanism 330.
  • the elastic mechanism 330 includes an upper base 332, a lower base 333, and at least one elastic strip 331 (see FIGS. 8a-8c) connected between the upper base 332 and the lower base 333.
  • the liquid pump 300 of the third embodiment is different from the previous embodiment in that the upper base 332 abuts against the ram 310, and the push between the lower base 333 of the elastic mechanism 330 and the mouthpiece 320 is pushed.
  • Plate 340 is in the form of a pusher member.
  • the push plate 340 in the form of a push member includes an end plate 341 at both ends and two side plates connected between the two end plates 341, so that the push plate 340 is formed in the shape of a rectangular ring.
  • the rectangular collar can be sleeved, for example, on the upper sleeve of the mouthpiece 320.
  • the upper surface of the side plate is stepped, and includes an upper step surface 342 and a lower step surface 343.
  • a transition surface 344 is formed between the upper step surface 342 and the lower step surface 343.
  • the push plate 340 is linearly movable between a first position and a second position.
  • the support surface 334 on the lower surface of the lower base 333 of the elastic mechanism 330 is in contact with the lower step surface 343, thereby The distance between the base 332 and the lower base 333 is large, the elastic strip 331 of the elastic mechanism 330 is in a relaxed state, and in the second position, the support surface 334 of the elastic mechanism 330 is in contact with the upper stepped surface 342, and the elastic mechanism The distance between the upper base 332 and the lower base 333 of the 330 is small, and the elastic strip 331 of the elastic mechanism 330 is in a preloaded state.
  • protrusions 345 are formed on the inner sides of the two side plates, respectively, and the distance between the two protrusions 345 is smaller than the diameter of the upper sleeve 321 of the mouthpiece 320.
  • the convex portion 345 functions as a limit.
  • the convex portion 345 is on one side of the upper sleeve 321 of the mouthpiece 320 and is not in contact with the upper sleeve 321.
  • the convex portion 345 contacts the upper sleeve 321 to prevent further movement of the push plate 340, and at this time, it is required to be applied.
  • a force greater than a predetermined value deforms the two side plates of the push plate 340 to allow the convex portion 345 to pass over the upper sleeve 321.
  • a guide projection 335 is provided on the support surface 334 of the elastic mechanism 330, and the guide projection 335 is engaged with the upper step surface 342 when the push plate 340 is in the first position.
  • the guide protrusion 335 guides the movement of the support surface 334 from the lower step surface 343 to the upper step surface 342 during the movement of the push plate 340 from the first position to the second position.
  • the push plate 340 When the liquid pump 300 is in the unused state, the push plate 340 is in the first position, and the lower step surface 343 on the side plate of the push plate 340 is in contact with the support surface 334 of the lower base 333 of the elastic mechanism 330, and the elastic strip 331 is in a relaxed state.
  • the user pushes the end plate 341 on one end of the push plate 340 to linearly move the push plate 340 from the first position to the second position.
  • the support surface 334 of the elastic mechanism 330 is in contact with the upper step surface 342, so that the lower base 333 is raised, and the distance between the upper base 332 and the lower base 333 is shortened, so that the elastic strip 331 is preloaded. .
  • the end plate 341 on the other end of the push plate 340 is pushed to linearly move the push plate 340 from the second position to the first position.
  • the support surface 334 of the elastic mechanism 330 comes into contact with the lower step surface 343 and returns to the relaxed state.
  • the liquid pump 400 of the fourth embodiment includes a ram 410, a mouthpiece 420, and a resilient mechanism 430 disposed between the ram 410 and the mouthpiece 420. Also included in the fourth embodiment is a sleeve 440 that can be integrally or detachably formed on the elastic mechanism 430, for example.
  • the resilient mechanism 430 includes an upper base 432, a lower base 433, and at least one resilient strip 431 coupled between the upper base 432 and the lower base 433.
  • a convex platform 435 and a concave platform 436 are included on the upper surface of the upper base 432.
  • a ram bump 411 is formed at a lower portion of the ram 410 (see Figs. 13a and 13b).
  • the resilient mechanism 430 is rotatable between a first position and a second position.
  • the concave platform 436 In the first position, the concave platform 436 is in contact with the ram bump 411 such that the distance between the upper pedestal 432 and the lower pedestal 433 is greater, the elastic strip 431 is in a relaxed state, and in the second position, convex The platform 435 is in contact with the ram bump 411 such that the distance between the upper pedestal 432 and the lower pedestal 433 is small and the elastic strip 431 is in a preloaded state.
  • the elastic mechanism 430 can automatically switch from the first position to the second position during the user pressing the ram 410.
  • the structure of this automatic switching is as follows.
  • a downwardly extending sleeve 440 is formed on the upper base 432, and the inside of the sleeve 440 is formed with at least one projection 441.
  • a guide groove 422 is formed in the upper sleeve 421 of the mouthpiece 420, the upper portion of the guide groove 422 is an inclined groove, and the lower portion is a vertical groove. In the mounted state, the bump 441 fits in the guide groove 422.
  • the sleeve 440 formed on the upper base 432 is also lowered, and when the projection 441 is in the inclined groove portion of the guide groove 422, between the projection 441 and the guide groove 422
  • the elastic mechanism 430 is rotated from the first position to the second position.
  • the elastic mechanism 430 reaches the second position, thereby bringing the elastic mechanism 430 into the preloaded state.
  • a rib 434 is formed on the lower surface of the lower base 433 of the elastic mechanism 430, and the rib 434 is in contact with the mouthpiece 420, so that the resistance of the elastic mechanism 430 with respect to the rotation of the mouthpiece 420 can be reduced.
  • the elastic mechanism 430 When the liquid pump 400 is in the unused state, the elastic mechanism 430 is in the first position, and the concave platform 436 of the upper base 432 of the elastic mechanism 430 is in contact with the ram bump 411 of the ram 410, so that the elastic strip 431 is in a relaxed state. .
  • the user removes the pressing force on the indenter 410, and the indenter 410 moves upward under the elastic force of the elastic strip 431 of the elastic mechanism 430.
  • the projection 441 of the sleeve 440 moves from the vertical groove portion of the guide groove 422 to the inclined groove portion, and thereafter, under the action of the guide groove 422 and the projection 441, the elastic mechanism 430
  • the second position is rotated back to the first position so that the elastic strip 431 returns to the relaxed state.
  • the liquid pump 500 includes a ram 510, a mouthpiece 520, and a resilient mechanism 530 disposed between the ram 510 and the mouthpiece 520.
  • the liquid pump 500 of the fifth embodiment further includes a relaxation push plate 540 disposed between the upper bases 532 of the elastic mechanism 530.
  • the lower base 533 of the elastic mechanism 530 abuts against the mouthpiece 520.
  • Figures 15a-15c illustrate a relaxation pusher 540, wherein the relaxed pusher 540 includes a plate 541 in the shape of a rectangular ring and a cantilever 542 suspended downwardly from the plate 541, such as in the configuration shown in Figure 15a,
  • the suspension plate 540 is formed with two cantilevers 542 disposed opposite to each other.
  • the two side walls of the plate body 541 are respectively formed in a stepped shape, and the lower surface thereof includes an upper stepped surface 543 and a lower stepped surface 544 between the upper stepped surface 543 and the lower stepped surface 544.
  • the transition surface 545 is formed in the form of a bevel in the figure.
  • the transition surface 545 can also be formed as a curved surface.
  • the relaxation push plate 540 is capable of linear movement between the first position and the second position.
  • the lower step surface 544 is in contact with the upper base 532 of the elastic mechanism 530, so that the distance between the upper base 532 and the lower base 533 is large, and the elasticity of the elastic mechanism 530 is achieved.
  • the strip 531 is in a relaxed state, and when the relaxation pusher 540 is in the second position, the upper stepped surface 543 is in contact with the upper base 532 of the elastic mechanism 530, so that the distance between the upper base 532 and the lower base 533 is made smaller.
  • the elastic strip 531 is preloaded.
  • Protruding claws 546 are respectively disposed on the free ends of the two cantilevers 542 shown, and correspondingly, two guiding wedges 521 corresponding to the two claws 546 are provided on the dental sleeve 520, for example, on the upper sleeve of the dental mouthpiece 520. .
  • one guiding wedge 521 includes an upwardly facing bevel and the other guiding wedge 521 includes a downwardly facing bevel.
  • the relaxation push plate 540 When the liquid pump 500 is in the unused state, the relaxation push plate 540 is in the first position, at which time the lower step surface 544 of the relaxation push plate 540 is in contact with the upper base 532 of the elastic mechanism 530, thereby causing the elastic strip of the elastic mechanism 530. 531 is in a relaxed state.
  • the user applies a downward pressing force to the indenter 510.
  • the relaxation push plate 540 also moves downward, with one cantilever 542 and a corresponding obliquely facing guiding wedge.
  • the 521 contact for example in the figure, is that the tab 546 of the cantilever 542 contacts and interacts with the guiding wedge 521.
  • the relaxation push plate 540 is linearly moved from the first position to the second position.
  • the relaxation push plate 540 When the relaxation push plate 540 is moved to the second position, the upper step surface 543 of the relaxation push plate 540 comes into contact with the upper base 532 of the elastic mechanism 530, thereby causing the elastic strip 531 to be in a preloaded state.
  • the pressing force to the indenter 510 is removed, and the indenter 510 and the relaxation pusher 540 are moved upward by the elasticity of the elastic strip 531.
  • the other cantilever 542 of the relaxation push plate 540 for example its claw 546, contacts and interacts with the corresponding other guiding wedge 521 that slopes downward.
  • the relaxation pusher 540 is returned from the second position to the first position, thereby returning the elastic strip 531 of the elastic mechanism 530 to the relaxed state.
  • 17a to 19b show a liquid pump 600 of a sixth embodiment of the present invention.
  • the features that are not included in the previous embodiments are mainly described for the sake of brevity, and the same technical features as the previous embodiments will not be described in detail.
  • the liquid pump 600 includes a ram 610, a mouthpiece 620, and a resilient mechanism 630 disposed between the ram 610 and the mouthpiece 620.
  • the elastic mechanism 630 includes an upper base 632, a lower base 633, and at least one elastic strip 631 connected between the upper base 632 and the lower base 633.
  • a relaxation pusher 640 is disposed between the lower base 633 of the elastic mechanism 630 and the mouthpiece 620.
  • the structure of the relaxation pusher 640 is shown in Figures 19a and 19b.
  • the upper surface of the relaxation push plate 640 is stepped, and includes an upper step surface 641 and a lower step surface 642.
  • a transition surface 643 having a slope is formed between the upper step surface 641 and the lower step surface 642.
  • the transition surface 643 can also be a curved surface.
  • a convex portion 634 is formed on the lower surface of the lower base 633, and the convex portion 634 is in contact with the upper step surface 641 or the lower step surface 642 of the relaxation push plate 640.
  • the relaxation push plate 640 is capable of linear movement between the first position and the second position.
  • the convex portion 634 In the first position, the convex portion 634 is in contact with the lower step surface 642 of the relaxation push plate 640, so that the distance between the upper base 632 and the lower base 633 of the elastic mechanism 630 is large, and the elastic strip 631 is in a relaxed state; In the second position, the convex portion 634 is in contact with the upper stepped surface 641 of the relaxation push plate 640 such that the distance between the upper base 632 and the lower base 633 of the elastic mechanism 630 is reduced, thereby preloading the elastic strip 631 .
  • a piston rod 650 is coupled to the lower sleeve of the push plate 640. As shown in Figures 18a and 18b, two oppositely disposed guiding wedges 651 are formed on the piston rod 650, one guiding wedge 651 comprising an upwardly facing bevel and the other guiding wedge 651 comprising a downwardly facing bevel.
  • the relaxation push plate 640 When the liquid pump 600 is in the unused state, the relaxation push plate 640 is in the first position, and the lower step surface 642 of the relaxation push plate 640 is in contact with the convex portion 634 on the lower surface of the lower base 633 of the elastic mechanism 630, thereby making the elastic strip The 631 is in a relaxed state.
  • the user applies a downward pressing force to the indenter 610 such that the piston rod 650 attached to the lower sleeve of the indenter 610 also moves downward.
  • a guide wedge 651 on the piston rod 650 including the downwardly facing ramp faces contacts and interacts with the release push plate 640.
  • the relaxation push plate 640 linearly moves from the first position to the second position such that the convex portion 634 of the elastic mechanism 630 is in contact with the upper stepped surface 641 of the push plate 640. .
  • the elastic strip 631 of the elastic mechanism 630 is shifted to the preloaded state.
  • the user After one pumping, the user removes the pressing force on the indenter 610, and the indenter 610 moves upward by the elastic force of the elastic mechanism 630.
  • the other guiding wedge 651 of the piston rod 650 including the upwardly facing ramp faces contacts and interacts with the relaxed push plate 640.
  • the restoring plate 640 Under the action of the guiding wedge 651 including the upwardly facing bevel, the restoring plate 640 is returned from the second position to the first position such that the convex portion 634 of the elastic mechanism 630 is in contact with the lower stepped surface 642 of the relaxation push plate 640. .
  • the elastic strip 631 of the elastic mechanism 630 returns to the relaxed state.
  • the automatic switching of the relaxation push plate 640 between the first position and the second position is achieved by relaxing the interaction of the push plate 640 with the guide wedge 651 on the piston rod 650.
  • the liquid pump 700 includes a pressure head 710, a mouthpiece 720, and a cylinder 750.
  • a piston rod 760 is fixed within the cylinder 750.
  • the ram 710 includes a lower sleeve 711.
  • the upper base 732 of the elastic mechanism 730 abuts the lower end of the lower sleeve 711, and the lower base 733 of the elastic mechanism 730 abuts on the shoulder 751 in the cylinder 750.
  • the resilient mechanism 730 applies an upward biasing force to the indenter 710.
  • a relaxation ring 740 is further disposed between the lower end of the sleeve 711 of the indenter 710 and the upper base 732 of the elastic mechanism 730.
  • the relaxation ring 740 is annular and its structure is shown in Figures 22a-22d.
  • the lower surface of the relaxation ring 740 is formed with a convex support surface 742 and a concave support surface 743.
  • the release ring 740 is rotatable between a first position in which the concave support surface 743 is in contact with the upper base 732 of the resilient mechanism 730, such that the upper base 732 and the lower base The distance between the 733 is large, the elastic strip 731 of the elastic mechanism 730 is in a relaxed state, and in the second position, the convex supporting surface 742 is in contact with the upper base 732 of the elastic mechanism 730, so that the upper base 732 and the lower base The distance between the 733 becomes smaller, thereby preloading the elastic strip 731 of the elastic mechanism 730.
  • the rotation of the relaxation ring 740 in the first position and the second position can be automatically achieved.
  • at least one, and preferably two, mutually opposing grooves 741 are formed in the inner surface of the release ring 740.
  • at least one, and preferably two, opposing guide ribs 761 are formed on the piston rod 760, as shown in Figs. 21a to 21c.
  • the guide rib 761 includes an inclined portion at the upper portion and a vertical portion at the lower portion. In the installed state, the recess 741 of the release ring 740 mates with the guide rib 761 of the piston rod 760.
  • the groove 741 When the relaxation ring 740 moves downward, the groove 741 first cooperates with the inclined portion of the guiding rib 761, and under the action of the inclined portion, rotates from the first position to the second position, and when the groove 741 enters and When the vertical portions of the guide ribs 761 are engaged, the release ring 740 reaches the second position and stops rotating.
  • a plurality of bead points 744 are formed on the surface of the relaxation ring 740 opposite to the lower end of the lower sleeve 711 of the indenter 710, through which the bead points 744 It is in contact with the lower end of the lower sleeve 711 so as to reduce the frictional resistance it receives when the relaxation ring 740 is rotated.
  • the guide groove is formed on the piston rod 760, and the shape of the guide groove is matched on the inner surface of the release plate 740.
  • the projections are also within the scope of the invention.
  • the ram 710 When the liquid pump 700 is in the unused state, the ram 710 is at the top dead center of the stroke, and the release ring 740 is in its first position, at which time the concave bearing surface 743 of the release ring 740 is in contact with the upper base 732 of the resilient mechanism 730.
  • the elastic strip 731 of the elastic mechanism 730 is in a relaxed state.
  • the user applies a downward pressing force to the indenter 710 to move the indenter 710 downward, and the relaxation ring 740 abutting the lower end of the lower sleeve 711 of the indenter 710 also moves downward.
  • the recess 741 in the relaxation ring 740 first cooperates with the inclined portion of the upper portion of the guide rib 761 in the piston rod 760, and under the action of the inclined portion of the guide rib 761 Rotating from the first position to the second position.
  • the release ring 740 moves to a position where its groove 741 mates with the vertical portion of the guide rib 761, at which point the release ring 740 is rotated to the second position.
  • the convex supporting surface 742 of the relaxing ring 740 comes into contact with the upper base 732 of the elastic mechanism 730, and the elastic strip 731 of the elastic mechanism 730 enters the preloaded state.
  • continuing to press down on the ram 710 does not result in further rotation of the relaxation ring 740.
  • the user After a single pumping, the user removes the pressing force exerted on the indenter 710, and the indenter 710 is returned to its top dead center by the elastic force of the elastic mechanism 730, and the relaxation ring 740 is also moved upward.
  • the relaxation ring 740 When the relaxation ring 740 is moved to a position where its groove 741 is engaged with the inclined portion of the guide rib 761, the release ring 740 starts to rotate from the second position to the first position by the inclined portion.
  • the relaxation ring 740 When the indenter 710 reaches its stroke top dead center, the relaxation ring 740 also reaches its first position, so that the concave bearing surface 743 of the relaxation ring 740 comes into contact with the upper base 732 of the elastic mechanism 730, so that the elastic strip of the elastic mechanism 730 731 returns to its relaxed state.
  • FIG. 23 to 25 show a liquid pump 800 of an eighth embodiment of the present invention and a liquid pump 800' of a modified structure thereof.
  • the features that are not included in the previous embodiments are mainly described for the sake of brevity, and the same technical features as the previous embodiments will not be described in detail.
  • the liquid pumps 800, 800' shown in Figs. 23 to 25 are spray gun type liquid pumps.
  • the liquid pump 800 has a cylinder 850 and a piston rod 840 that is movable within the cylinder 850.
  • a pivot trigger 810 is provided on the piston rod 840 for actuating the piston rod 840.
  • the pivot trigger 810 pivots, thereby moving the piston rod 840 relative to the cylinder 850, thereby pumping the product out.
  • the liquid pump 800 also includes a resilient mechanism 820.
  • the resilient mechanism 820 includes an elastic strip 821 having a first end 822 secured to the piston rod 840 and a second end 823 secured to the cylinder 850 or liquid pump.
  • a biasing force is applied to the piston rod 840 to reset it relative to the cylinder 850.
  • a release plate 830 is further included.
  • the release plate 830 is rotatably sleeved on the piston rod 840 and abuts against the first end 822 of the resilient mechanism 820.
  • the relaxation plate 830 includes a body having a convex surface 831 and a concave surface 832 formed on the surface of the elastic body 820, and a paddle 833 formed on the body of the relaxation plate 830. .
  • the release pad 830 can be rotated between the first position and the second position.
  • the concave surface 832 of the relaxation plate 830 In the first position, when the concave surface 832 of the relaxation plate 830 is in contact with the first end 822 of the elastic mechanism 820, the distance between the two ends of the elastic strip 821 is large, so that the elastic strip 821 is in a relaxed state, and in the second In the position, the convex surface 831 of the relaxation plate 830 is in contact with the first end 822 of the elastic mechanism 820 such that the distance between the ends of the elastic strip 821 is reduced, thereby preloading the elastic strip 821.
  • the release plate 830 When the liquid pump 800 is in the unused state, the release plate 830 is in the first position with its concave surface 832 in contact with the first end 822 of the resilient strip 821 of the resilient mechanism 820, thereby leaving the elastic strip 821 in a relaxed state.
  • the paddles 833 of the release plate 830 are operated to rotate the release plate 830 from the first position to the second position. At this time, the convex surface 831 of the relaxation plate 830 is in contact with the first end 822 of the elastic strip 821, thereby preloading the elastic strip 821.
  • the paddles 833 are operated to rotate the release plate 830 back to the first position, thereby returning the elastic strips 821 of the resilient mechanism 820 to a relaxed state.
  • the liquid pump 800' of the modified structure of the eighth embodiment shown in Fig. 25 is basically similar in structure to the liquid pump 800 shown in Fig. 23. That is, the liquid pump 800' includes a piston rod 840', a cylinder 850', an elastic mechanism 820' for applying a biasing force to the piston rod 840', and a loosening plate 830' for adjusting the elastic mechanism 820'.
  • the actuating mechanism of the liquid pump 800' is a pressing portion 810' that is coaxially mounted on the piston rod 840'.
  • the pressing portion 810' allows the pressing force applied to the piston rod 840' to coincide with the moving direction of the piston rod 840', so that the pressing force can be utilized more effectively.
  • the liquid pump 900 includes a ram 910 and a mouthpiece 920 with a resilient mechanism 930 disposed between the ram 910 and the mouthpiece 920 to apply an upward biasing force to the ram 910.
  • the elastic mechanism 930 includes an upper base 932, a lower base 933, and an elastic strip 931 connected between the upper base 932 and the lower base 933.
  • One of the upper base 932 and the lower base 933 is movable between a first position and a second position.
  • the upper base 932 is moveable between a first position and a second position, wherein in the first position shown in Figure 26a, between the ends of the resilient strip 931
  • the wire is inclined relative to the longitudinal axis of the liquid pump 900, for example at an acute angle.
  • the distance L1 between the both ends of the elastic strip 931 is large, so that the elastic strip 931 is in a relaxed state.
  • the line between the ends of the elastic strip 931 is substantially parallel to the longitudinal axis of the liquid pump 900, whereby the distance between the ends of the elastic strip 931 L2 is smaller than the distance L1 at the first position, thereby preloading the elastic strip 931.
  • the line between the ends of the elastic strip 931 may also be non-parallel to the longitudinal axis of the liquid pump 900 as long as the elastic strip 931 is now connected between the ends and the liquid pump 900.
  • the angle between the longitudinal axes is smaller than the angle between the line between the ends of the elastic strip 931 in the first position and the longitudinal axis of the liquid pump 900, and the above L2 may be made smaller than L1, so that in the second position The elastic strip 931 is in a preloaded state.
  • the lower base 933 is movable between the first position and the second position.
  • the upper base 932 of the elastic mechanism 930 When the liquid pump 900 is in the unused state, the upper base 932 of the elastic mechanism 930 is in the first position, so that the distance between the ends of the elastic strip 931 of the elastic mechanism 930 is large, and the elastic strip 931 is in a relaxed state.
  • the upper base 932 of the elastic mechanism 930 is pushed to move from the first position to the second position.
  • the distance between the ends of the elastic strip 931 is reduced, thereby preloading the elastic strip 931.
  • the user pushes the upper base 932 from the opposite direction to return the upper base 932 from the second position to the first position, thereby returning the elastic strip 931 to the relaxed state.
  • the elastic mechanism includes an upper base and a lower base.
  • at least one of the upper base and the lower base may not be included, but the respective ends of the elastic strips may be directly connected to the indenter or the mouthpiece.
  • the resilient mechanism typically includes two resilient strips.

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Abstract

一种液体泵（100,200,300,400,500,600,700,800,900），包括活动单元和固定单元，活动单元能够相对于固定单元运动，从而将产品泵送出来，在活动单元和固定单元之间设置有弹性机构（130,230,330,430,530,630,730,820,930），该弹性机构（130,230,330,430,530,630,730,820,930）包括至少一个弹性条（131,231,331,431, 531,631,731,821,931），弹性条（131,231,331,431,531,631,731,821,931）对活动单元施加偏置力，以在泵送产品之后使活动单元复位。该液体泵（100,200,300, 400,500,600,700,800,900）还包括弹性机构调节件，该弹性机构调节件能够在第一位置和第二位置之间运动，在第一位置中，弹性机构（130,230,330,430,530, 630,730,820,930）的弹性条（131,231,331,431,531,631,731,821,931）处于放松状态，而在第二位置中，弹性机构（130,230,330,430,530,630,730,820,930）的弹性条（131,231,331,431,531,631,731,821,931）处于预加载状态。通过设置弹性机构调节件，可便于在使用时下压压头（110,210,310,410,510,610,710,910），还可避免弹性条（131,231,331,431,531,631,731,821,931）因长时间受力而屈服变形。

Description

液体泵 技术领域
本发明涉及一种液体泵，此处，所谓的“液体”包括液态、半液态等的流动或半流动产品。
背景技术
在诸如洗护产品的领域中，采用的容器上通常会包括液体泵，用于将容器中的产品分配出来。使用人通过对液体泵上的致动件施加压力来泵送产品，在对产品进行一次泵送之后，安装在液体泵上的复位机构会使致动件恢复到其未受按压的位置，即，使致动件复位，以备下一次的泵送。
目前，市场上用于液体泵的复位机构通常有以下几种：
一种复位机构是呈波纹管形状的塑料弹簧。如图28所示，在液体泵1000的压头1100和牙套1200之间设置有波纹管形的弹簧1300。当要对产品进行分配时，按压压头1100，使压头1100克服弹簧1300的弹簧力向下运动，在将产品分配出来之后，撤去对压头1100的压力，从而压头1100在弹簧1300的弹簧力的作用下向上运动，回到初始位置。
对于这种波纹管形状的塑料弹簧1300，其存在的一个问题是弹簧力不足，如果遇到所要泵送的产品比较黏稠或者泵送量比较大的情况时，由于弹簧力不足，压头1100的回弹会发生困难，甚至有可能无法回弹。这会影响对产品容器的继续使用。针对这一问题，为了使液体泵的压头在使用后能够回弹到位，目前的常用做法是在使用前对波纹管弹簧进行预加载，使其承受一定的预压变形。不过，这又会产生其他问题，例如波纹管弹簧如果一直处于预加载状态，则时间长了就会发生屈服变形，使得原来预加载而产生的预压变形量消失。这样，长时间的储存或使用之后，仍然会发生无法回弹到位的问题。
另一种复位机构是套管式的弹簧。如图29所示，在液体泵2000的压头2100上形成有套管式弹簧2300，该套管式弹簧2300的下端抵接在牙套2200上，且设有多条纵向狭缝，从而在相邻狭缝之间形成弹性条。当下压压头2100时，弹性条 受压弯曲，而当撤去压力时，弹性条在其弹性力的作用下恢复到竖直的未受力状态，从而使压头2100回弹。
这种套管式弹簧2300所存在的一个问题是，当压头2100处于上止点附近时，要将压头2100下压需要很大的下压力，有些使用人会压不动，而当压头2100达到其行程的下止点时，弹簧2300的弹性条有可能过度变形，导致其回弹力较小，使压头的回弹缓慢，有时无法完全复位，影响下一次的使用。
因此，需要一种改进的液体泵，其能够克服以上所述的现有技术中的技术问题。
发明内容
本发明是基于以上所述现有技术的技术问题而作出的，其目的在于提供一种结构改进的液体泵，其中，无需很大的下压力来下压该液体泵的压头，并且还可避免弹性条因长时间受力而屈服变形。
本发明的液体泵包括活动单元和固定单元，活动单元能够相对于固定单元运动，从而将产品泵送出来，在活动单元和固定单元之间设置有弹性机构，该弹性机构包括至少一个弹性条，弹性条对活动单元施加偏置力，以在泵送产品之后使活动单元复位，其中，该液体泵还包括弹性机构调节件，弹性机构调节件形成在弹性机构上，或者与弹性机构相连，并且弹性机构调节件能够在第一位置和第二位置之间运动，在第一位置中，弹性机构的弹性条处于放松状态，而在第二位置中，弹性机构的弹性条处于预加载状态。
通过本发明的上述液体泵，在不使用的时候，弹性机构的弹性条处于放松状态，而在使用时，可先对弹性条进行预加载。这样，在使用过程中无需太大的按压力来按压压头，同时又可避免弹性条在不使用时长期受压而屈服变形，导致液体泵失效。
在本发明中，弹性机构由具有弹性的非金属材料制成。例如，用于制造弹性机构的材料可以是弹性塑料、橡胶等。
液体泵的一种类型为按压式的液体泵，其中，活动单元包括压头和连接在按压头上的活塞杆；固定单元包括牙套和与牙套相连的汽缸。
对于按压式的液体泵，其中的弹性机构调节件的具体结构可采取以下的 一些实施方式。
在第一实施方式中，弹性机构包括上基座和下基座，上基座可转动地抵靠在压头上，下基座可转动地抵靠在牙套上；弹性机构调节件包括下基座，其中，下基座的下表面形成有凸支承面和凹支承面，在牙套上形成有凸块，当弹性机构调节件处于第一位置时，凹支承面与凸块相配合，当弹性机构调节件处于第二位置时，凸支承面与凸块相配合；以及在下基座上形成有拨片，通过对拨片的操作实现弹性机构调节件在第一位置和第二位置之间的转动。
或者，弹性机构调节件也可以是包括上基座，其中，上基座的上表面形成有凸支承面和凹支承面，在压头的下部形成有凸块，当弹性机构调节件处于第一位置时，凹支承面与凸块相配合，当弹性机构调节件处于第二位置时，凸支承面与凸块相配合；以及在上基座上形成有拨片，通过对拨片的操作实现弹性机构调节件在第一位置和第二位置之间的转动。
在第二实施方式中，弹性机构包括下基座，下基座的下表面上形成有凸支承面和凹支承面；弹性机构调节件包括下基座和放松环，放松环处于下基座和牙套之间，且放松环上形成有凸块，当弹性机构调节件处于第一位置时，凸块与凹支承面相配合，而当弹性机构调节件处于第二位置时，凸块与凸支承面相接触；放松环还形成有至少一个拨片，通过对拨片的操作实现弹性机构调节件在第一位置和第二位置之间的转动。
或者，也可以是弹性机构包括上基座，上基座的上表面上形成有凸支承面和凹支承面；弹性机构调节件包括上基座和放松环，放松环处于上基座和压头之间，且放松环上形成有凸块，当弹性机构调节件处于第一位置时，凸块与凹支承面相配合，而当弹性机构调节件处于第二位置时，凸块与凸支承面相接触；放松环还形成有至少一个拨片，通过对拨片的操作实现弹性机构调节件在第一位置和第二位置之间的转动。
在第三实施方式中，弹性机构包括下基座，弹性机构调节件包括设置在下基座和牙套之间的推板，推板包括：位于两端的两个端板以及在端板之间延伸的侧板，侧板的上表面上形成为台阶状，包括上台阶面和下台阶面，并且推板能够在第一位置和第二位置之间线性运动，在第一位置中，下台阶面与下基座的支承面相接触，在第二位置中，上台阶面与下基座的支承面相接触。
进一步地，在推板的上台阶面和下台阶面之间还包括过渡面，过渡面为斜面或弧面。
较佳地，弹性机构调节件自动实现第一位置和第二位置之间的运动。例如：
在第四实施方式中，弹性机构调节件包括形成在弹性机构上的套筒，在套筒的内表面上形成有至少一个凸块；在牙套的上套筒上形成有导向槽，凸块容纳在导向槽中，导向槽包括在上部的倾斜部分和在下部的竖直部分；以及弹性机构包括上基座，上基座的上表面形成有凸平台和凹平台；在压头的下部形成有压头凸块；其中，当压头位于其行程的上止点位置时，套筒位于第一位置，上基座的凹平台与压头凸块相接触；通过下压压头，使凸块与导向槽的倾斜部分相互作用，从而使套筒从第一位置向第二位置转动，当凸块进入竖直部分时，套筒转动到达第二位置，从而使上基座的凸平台与压头凸块相接触。
在第五实施方式中，弹性机构调节件包括设置在弹性机构和压头之间的推板，推板包括板体和从板体向下悬置的第一悬臂和第二悬臂，板体的下表面形成为台阶状，包括上台阶面和下台阶面；以及牙套的上套筒上设置有：第一引导楔块，第一引导楔块与第一悬臂相对应，并具有面向上的斜面；以及第二引导楔块，第二引导楔块与第二悬臂相对应，并具有面向下的斜面；其中，当压头处于行程的上止点时，推板处于第一位置，在第一位置中，推板的下台阶面与弹性机构的上基座相接触，以使弹性条处于放松状态；随着压头向下运动，第一悬臂与第一引导楔块相接触并互相作用，使推板从第一位置移动到第二位置，在第二位置中，推板的上台阶面与弹性机构的上基座相接触，以使弹性条处于预加载状态；而随着压头向上运动，第二悬臂与第二引导楔块相接触并相互作用，以使推板从第二位置回到第一位置。
其中较佳地，在第一悬臂和/或第二悬臂的自由端上形成有凸爪，凸爪与第一引导楔块和/或第二引导楔块相作用。
在第六实施方式中，弹性机构调节件包括设置在弹性机构的下基座与牙套之间的推板，推板的上表面包括上台阶面和下台阶面；以及在活塞杆上形成有：第一引导楔块，第一引导楔块包括面向下的斜面；以及第二引导楔块，第二引导楔块包括面向上的斜面；其中，当压头处于行程的上止点时，推板处于 第一位置，在第一位置中，推板的下台阶面与下基座相接触，使弹性条处于放松状态，随着压头向下运动，第一引导楔块与推板相接触并互相作用，使推板从第一位置移动到第二位置，在第二位置中，推板的上台阶面与下基座相接触，使弹性条预加载；而随着压头向上运动，第二引导楔块与推板相接触并互相作用，以使推板从第二位置回到第一位置。
较佳地，在下基座的下表面上形成有凸部，凸部与推板的上台阶面或下台阶面相接触。这样，可以减少下基座和推板之间的摩擦阻力，便于推板在第一位置和第二位置之间的运动。
弹性机构也可设置在牙套的下方，比如位于汽缸内部。例如，在第七实施方式中，液体泵为按压式的液体泵，活动单元包括压头，压头包括下套筒；固定单元包括：牙套；汽缸，汽缸与牙套相连接，汽缸中形成有凸肩部；以及活塞杆，活塞杆固定在汽缸内；以及弹性机构包括上基座和下基座，下基座抵靠在凸肩部上，且在上基座和压头的下套筒的下端之间设置有放松环；放松环的下表面上形成有凸支承面和凹支承面，其中，当放松环处于第一位置，凹支承面与上基座相接触，弹性条处于放松状态，而当放松环处于第二位置，凸支承面与上基座相接触，弹性条处于预加载状态；其中，在放松环的内表面上形成有至少一个凹槽，在活塞杆上形成有至少一个引导凸条，引导凸条包括上部的倾斜部分和下部的竖直部分，凹槽配合在引导凸条上，当凹槽与倾斜部分相配合时，压头的向下运动使放松环从第一位置转动到第二位置，而压头的向上运动使放松环从第二位置转动回到第一位置。
或者，可将上述凸条和凹槽的设置位置互换。例如，在放松环的内表面上形成有至少一个凸块，在活塞杆上形成有至少一个引导槽，引导槽包括上部的倾斜部分和下部的竖直部分，凸块配合在引导槽中，当凸块与倾斜部分相配合时，压头的向下运动使放松环从第一位置转动到第二位置，而压头的向上运动使放松环从第二位置转动回到第一位置。
还可通过使弹性条相对于液体泵的纵向轴线倾斜来实现弹性条的放松。例如，弹性机构包括上基座，弹性机构调节件至少包括上基座，其中，上基座能够在第一位置和第二位置之间线性运动，当上基座处于第一位置时，弹性条的两端之间的距离为L1，当上基座处于第二位置时，弹性条的两端之间的距 离为L2，其中L1>L2。
或者，可将弹性机构的下基座作为可线性运动的部件，即，弹性机构调节件至少包括下基座，其中，下基座能够在第一位置和第二位置之间线性运动，当下基座处于第一位置时，弹性条的两端之间的距离为L1，当下基座处于第二位置时，弹性条的两端之间的距离为L2，其中L1>L2。
液体泵也可为喷枪式液体泵，其中固定单元包括汽缸，活动单元包括活塞杆，活塞杆可运动地套设在汽缸中，在活塞杆上设置有致动部件，用于致动活塞杆相对于汽缸运动；弹性机构包括弹性条，弹性条的第一端固定在活塞杆上，弹性条的第二端固定在固定单元上，其中，弹性机构调节件包括套设在活塞杆上的放松板，放松板与弹性条的第一端抵接，放松板的面对弹性机构的表面上形成有凸面和凹面，并且，放松板能够在第一位置和第二位置之间转动，在第一位置，凹面与放松板的第一端接触，使弹性条处于放松状态，在第二位置，凸面与放松板的第一端接触，使弹性条处于预加载状态。
其中，致动部件为枢转扳机，或者，致动部件为同轴线地安装在活塞杆上的按压部。
附图说明
图1a是本发明的第一实施例的液体泵的正视图。
图1b是沿图1a中的线A-A得到的液体泵的截面图，其中该液体泵处于未被下压的状态。
图1c是图1a所示液体泵的另一截面图，其中该液体泵处于下压状态。
图2a是第一实施例的液体泵中的弹性机构的立体图。
图2b是图2a所示弹性机构的截面图。
图3a是第一实施例的液体泵中的牙套的立体图。
图3b是图3a所示牙套的俯视图。
图3c是沿图3b中的线B-B得到的截面图。
图4a是本发明的第二实施例的液体泵的立体图。
图4b是图4a所示液体泵的截面图，其中该液体泵处于未被下压的状态。
图4c是图4a所示液体泵的另一截面图，其中该液体泵处于下压状态。
图5a是第二实施例的液体泵中的弹性机构的立体图。
图5b是图5a所示弹性机构的截面图。
图6a是第二实施例的液体泵中的放松环的立体图。
图6b是图6a所示放松环的仰视图。
图6c是图6a所示放松环的侧视图。
图7a是本发明的第三实施例的液体泵的立体图。
图7b是图7a所示液体泵的截面图，其中该液体泵处于未被下压的状态。
图7c是图7a所示液体泵的另一截面图，其中该液体泵处于下压状态。
图8a是第三实施例的液体泵中的弹性机构的立体图。
图8b是图8a所示弹性机构的正视图。
图8c是图8a所示弹性机构的侧视图。
图9a是第三实施例的液体泵中的推板的立体图。
图9b是图9a所示推板的俯视图。
图9c是沿图9b中的线C-C得到的截面图。
图10a是本发明的第四实施例的液体泵的立体图。
图10b是图10a所示液体泵的截面图，其中该液体泵处于未被下压的状态。
图10c是图10a所示液体泵的另一截面图，其中该液体泵处于下压状态。
图11a是第四实施例的液体泵中的弹性机构的立体图，其中该弹性机构上设置有套筒。
图11b是图11a所示弹性机构的正视图。
图11c是沿图11b中的线D-D得到的截面图。
图12a是第四实施例的液体泵的牙套的立体图。
图12b是图12a所示牙套的正视图。
图13a是第四实施例的液体泵的压头的仰视立体图。
图13b是图13a所示压头的截面图。
图14a是本发明的第五实施例的液体泵的正视图。
图14b是图14a所示液体泵的截面图，其中该液体泵处于未被下压的状态。
图14c是图14a所示液体泵的另一截面图，其中该液体泵处于下压状态。
图15a是第五实施例的液体泵的推板的俯视图。
图15b是图15a所示推板的侧视图。
图15c是沿图15a中的线E-E得到的截面图。
图16a是第五实施例的液体泵的牙套的俯视图。
图16b是沿图16a中的线F-F得到的截面图。
图17a示出了本发明的第六实施例的液体泵的截面图，其中该液体泵处于未被下压的状态。
图17b是图17a所示液体泵的另一截面图，其中该液体泵处于下压状态。
图18a是第六实施例的液体泵的活塞杆的仰视图。
图18b是沿图18a中的线G-G得到的截面图。
图19a是第六实施例的液体泵的推板的俯视图。
图19b是沿图19a中的线H-H得到的截面图。
图20a示出了本发明的第七实施例的液体泵的截面图，其中该液体泵处于未被下压的状态。
图20b是图20a所示液体泵的另一截面图，其中该液体泵处于下压状态。
图21a是第七实施例的液体泵的活塞杆的立体图。
图21b是图21a所示活塞杆的正视图。
图21c是图21a所示活塞杆的仰视图。
图22a是第七实施例的液体泵的放松环的仰视立体图。
图22b是图22a所示放松环的俯视立体图。
图22c是图22a所示放松环的俯视图。
图22d是图22a所示放松环的侧视图。
图23是本发明的第八实施例的液体泵的侧视图。
图24是第八实施例的液体泵的放松扳的立体图。
图25示出了第八实施例的液体泵的变型结构。
图26a是本发明的第九实施例的液体泵的侧视图，其中弹性条处于放松状态。
图26b是第九实施例的液体泵的另一侧视图，其中弹性条处于预加载状态。
图27a是第九实施例的液体泵的弹性机构的立体图。
图27b是图27a所示弹性机构的截面图。
图27c是图27a所示弹性机构的俯视图。
图28示出了一种现有技术的液体泵。
图29示出了另一种现有技术的液体泵。
具体实施方式
为便于理解本发明，以下将参考附图对本发明的具体实施例进行描述。应当了解的是，附图中所示的仅仅是本发明的较佳实施例，其并不构成对本发明的范围的限制。本领域的技术人员可以在附图所示的实施例的基础上对本发明进行各种显而易见的修改、变型、等效替换，并且在不相矛盾的前提下，在以下所描述的不同实施例中的技术特征可以任意组合，而这些都落在本发明的保护范围之内。
在此要说明的是，除非另有特别解释，在本文中所使用的诸如“上”、“下”等有关方位的用语是以液体泵在使用状态下所处的竖直取向为参照而言的。
<第一实施例>
图1a～3c示出了本发明的第一实施例的液体泵100。该液体泵100的类型为按压泵，图1a示出了该液体泵100的正视图，图1b示出了沿图1a中的线A-A得到的截面图，其中液体泵100处于未按压状态，图1b是液体泵100处于按压状态的截面图。
如图1a所示，按压泵形式的液体泵100包括压头110和牙套120，在压头110和牙套120之间设置有弹性机构130。该弹性机构130由诸如弹性塑料、橡胶等具有弹性的非金属材料制成。压头110下连接有活塞杆140，在活塞杆140的下端安装有活塞160，牙套120与汽缸150连接在一起。活塞杆140穿过牙套120上端的开口进入牙套120内部，并伸入汽缸150中。
在使用液体泵100时，用户对压头110施加向下的按压力，使压头110和连接在压头110上的活塞杆140克服弹性机构130的弹力向下运动，从而将汽缸150中的产品料液泵送出来。在一次泵送之后，撤去施加在压头110上的按压力，压头110和活塞杆140在弹性机构130的弹性力的作用下向上回复到待用位置。由此，在压头110的往复运动过程中，将产品泵送出来。
在本发明中，弹性机构130由诸如塑料之类的弹性材料制成，并且可以 在第一位置和第二位置之间切换，在第一位置弹性机构130处于未加载的放松状态，而在第二位置，弹性机构130处于预加载的状态。
具体来说，如图2a和2b所示，弹性机构130包括至少一个、较佳地为两个或更多的弹性条131。较佳地，在未受力的状态下，该弹性条131呈弧形，这样，不会产生在压头110的行程上止点处所需下压力过大的情况。
在弹性条131的两端分别连接有上基座132和下基座133，上基座132和下基座133呈环形。在安装状态下，上基座132套设在压头110的下套筒上，且可相对转动地抵靠在压头110上，下基座133套设在牙套120的上套筒上，且可相对转动地抵靠在牙套120上，从而在压头110和牙套120之间施加使压头110相对于牙套120复位的偏置力。
下基座133的下表面包括凸支承面134和凹支承面135。相对应地，如图3a-3c所示，在牙套120上设置有至少一个凸块121(图中所示的是两个凸块)。当弹性机构130处于第一位置时，凹支承面135与凸块121相配合，此时上基座132和下基座133之间的距离为较大的H1，而在第二位置中，凸支承面134与凸块121相接触，从而使得上基座132和下基座133之间的距离缩短到较小的H2，此时弹性机构130的弹性条131预加载。
进一步地，如图2a和2b所示，在弹性机构130上还设置有拨片136，例如图中所示的在下基座133上设置拨片136。用户可以对该拨片136进行操作，使弹性机构130在第一位置和第二位置之间转动，从而使弹性机构130的弹性条131在放松状态和预加载状态之间切换。
下面将描述上述结构的液体泵100的操作原理：
当液体泵100处于未使用状态时，弹性机构130处于上述第一位置，此时弹性机构130的下基座133的凹支承面135与牙套120上的凸块121相对，此时弹性机构130的上基座132和下基座133之间的距离较大，从而弹性条131处于放松状态。
当需要使用液体泵100时，对拨片136进行操作，使弹性机构130相对于压头110和/或牙套120从第一位置传动到第二位置，此时弹性机构130的下基座133的凸支承面134与凸块121相接触，使下基座133上升，从而上基座132和下基座133之间的距离缩短，弹性条131经历预加载。
在使用完成之后，对拨片136进行操作，使弹性机构130从第二位置转回第一位置，使弹性条131从预加载状态回复到放松状态。
在上述结构的液体泵100中，在使用液体泵100时，弹性机构130的弹性条131处于预加载状态，而在不使用液体泵100时，弹性条131处于放松状态，因此可确保弹性机构130在使用时具有足够的弹力，而在不使用时弹性条131的放松状态可避免弹性条131因长期受力而屈服变形，延长其使用寿命。
在以上所述的结构中，通过下基座133的凸支承面134和凹支承面135与牙套120上的凸块121的交替配合和接触来实现对弹性条131的放松和预加载。作为替代的或附加的结构，也可在上基座132的上表面上也形成凸支承面和凹支承面，并且在压头110的下部形成相匹配的凸部。
<第二实施例>
图4a～6c示出了本发明的第二实施例的液体泵200。在以下对第二实施例的描述中，为了表述简洁，主要描述没有包括在第一实施例中的特征，对与第一实施例相同的技术特征则不再作详细描述。
如图4a～4c所示，液体泵200包括压头210、牙套220和弹性机构230。
如图5a和5b所示，弹性机构230包括上基座232、下基座233以及连接在上基座232和下基座233之间的至少一个弹性条231。上基座232和下基座233呈环形。弹性机构230的下基座233的下表面包括凸支承面234和凹支承面235。
第二实施例的液体泵200不同于第一实施例的液体泵100之处在于，液体泵200还包括放松环240。如图6a～6c所示，该放松环240包括环形的支承座242，在支承座242上设置有至少一个拨片241(图中示出了两个拨片241)。并且，在支承座242面对弹性机构230的表面上形成有至少一个、较佳地为两个或多个的凸块243。
回到图4a～4c，弹性机构230的上基座232抵接在压头210上，而在弹性机构230的下基座233和牙套220之间插设有放松环240。该放松环240可在第一位置和第二位置之间转动。在第一位置处，放松环240的支承座242上的凸块243与弹性机构230的下基座233上的凹支承面235相对应，从而弹 性机构230的上基座232和下基座233之间的距离较大，弹性条231处于放松状态，而在第二位置处，放松环240的支承座242上的凸块243与弹性机构230的下基座233上的凸支承面234相接触，使下基座233上升，从而弹性机构230的上基座232和下基座233之间的距离减小，对弹性条231预加载。
与第一实施例类似，也可在上基座232的上表面上设置凸支承面和凹支承面，而放松环240则设置在上基座232和压头210之间。
下面将描述上述结构的液体泵200的操作原理：
当液体泵200处于未使用状态时，放松环240处于第一位置，此时放松环240的支承座242上的凸块243的位置与弹性机构230的下基座233的凹支承面235相对应，从而弹性条231处于放松状态。
当需要使用液体泵200时，用户可对放松环240的拨片241进行操作，从而使放松环240从第一位置转动到第二位置，使放松环240的凸块243与弹性机构230的下基座233上的凸支承面234相接触，由此使下基座233上升，从而使弹性条231处于预加载状态。
当对液体泵200使用完毕之后，用户再次操作放松环240的拨片241，将放松环240从第二位置转回到第一位置，从而放松环240的凸块243的位置再次与凹支承面235对应，使弹性条231回到放松状态。
<第三实施例>
图7a～9c示出了本发明的第三实施例的液体泵300。在以下对第三实施例的描述中，为了表述简洁，主要描述没有包括在之前的实施例中的特征，对与之前的实施例相同的技术特征则不再作详细描述。
如图7a～7c所示，液体泵300包括压头310、牙套320和弹性机构330。弹性机构330包括上基座332、下基座333和连接在上基座332和下基座333之间的至少一个弹性条331(见图8a～8c)。
第三实施例的液体泵300与之前的实施例的不同之处在于，上基座332抵接在压头310上，而在弹性机构330的下基座333和牙套320之间插设的推板340为推动部件的形式。
如图9a～9c所示，呈推动部件形式的推板340包括位于两端的端板341 和连接在两个端板341之间的两个侧板，从而推板340形成为矩形环的形状，该矩形环套例如可套设在牙套320的上套筒上。
侧板的上表面呈台阶状，包括上台阶面342和下台阶面343，在上台阶面342和下台阶面343之间是呈斜面的过渡面344。该推板340可在第一位置和第二位置之间线性运动，在第一位置处，弹性机构330的下基座333的下表面上的支承面334与下台阶面343相接触，从而上基座332和下基座333之间的距离较大，弹性机构330的弹性条331处于放松状态，而在第二位置处，弹性机构330的支承面334与上台阶面342相接触，弹性机构330的上基座332和下基座333之间的距离较小，弹性机构330的弹性条331处于预加载状态。
较佳地，在两个侧板的内侧上分别形成有凸部345，两个凸部345之间的距离小于牙套320的上套筒321的直径。这样，在该凸部345起到限位的作用。当推板340处于第一位置或第二位置时，凸部345处于牙套320的上套筒321的一侧上，不与上套筒321相接触。当要将推板340从第一位置推到第二位置或从第二位置推到第一位置时，凸部345会接触上套筒321，阻止推板340的进一步运动，此时，需要施加大于预定值的力，使推板340的两个侧板变形，以允许凸部345越过上套筒321。这样，通过设置凸部345，使得需要施加预定值以上的力才能使推板340在第一位置和第二位置之间线性运动，从而避免对推板340误操作。
另外较佳地，在弹性机构330的支承面334上设置有导向凸块335，在推板340处于第一位置时，该导向凸部335与上台阶面342相配合。在推板340从第一位置运动到第二位置的过程中，该导向凸部335引导支承面334从下台阶面343到上台阶面342的运动。
下面将描述上述结构的液体泵300的操作原理：
当液体泵300处于未使用状态时，推板340处于第一位置，此时推板340的侧板上的下台阶面343与弹性机构330的下基座333的支承面334相接触，弹性条331处于放松状态。
当需要使用液体泵300时，用户推动推板340的一端上的端板341，使推板340从第一位置向第二位置线性运动。其结果是，弹性机构330的支承面334与上台阶面342相接触，使下基座333上升，缩短上基座332和下基座333 之间的距离，从而使弹性条331处于预加载状态。
在对弹性机构330使用完毕之后，推动推板340的另一端上的端板341，使推板340线性运动而从第二位置回到第一位置。这样，弹性机构330的支承面334与下台阶面343相接触，回到放松状态。
<第四实施例>
图10a～13b示出了本发明的第四实施例的液体泵400。在以下对第四实施例的描述中，为了表述简洁，主要描述没有包括在之前的实施例中的特征，对与之前的实施例相同的技术特征则不再作详细描述。
如图10a～10c所示，第四实施例的液体泵400包括压头410、牙套420和设置在压头410和牙套420之间的弹性机构430。在第四实施例中还包括套筒440，该套筒例如可一体地或可拆卸地形成在弹性机构430上。
如图11a～11c，弹性机构430包括上基座432、下基座433和连接在上基座432和下基座433之间的至少一个弹性条431。上基座432的上表面上包括凸平台435和凹平台436。相对应地，在压头410的下部形成有压头凸块411(见图13a和13b)。弹性机构430可在第一位置和第二位置之间转动。在第一位置中，凹平台436与压头凸块411相接触，从而上基座432和下基座433之间的距离较大，弹性条431处于放松状态，而在第二位置中，凸平台435与压头凸块411相接触，从而上基座432和下基座433之间的距离较小，弹性条431处于预加载状态。
在本发明的第四实施例中，弹性机构430可在用户按压压头410的过程中自动实现从第一位置到第二位置的切换。该自动切换的结构具体如下。
如图11a和11c所示，在上基座432上形成有向下延伸的套筒440，该套筒440的内部形成有至少一个凸块441。相对应地，在牙套420的上套筒421上形成有导向槽422，该导向槽422的上部为倾斜槽，而下部为竖直槽。在安装好的状态下，凸块441配合在该导向槽422中。当压头410被下压时，形成在上基座432上的套筒440也随之下降，当凸块441在导向槽422的倾斜槽部分中时，在凸块441和导向槽422之间的相互作用下，弹性机构430从第一位置向第二位置转动。当凸块441进入导向槽422的竖直槽部分时，弹性机构 430到达第二位置，从而使弹性机构430进入预加载状态。
较佳地，在弹性机构430的下基座433的下表面上形成有凸条434，由该凸条434与牙套420相接触，从而可减少弹性机构430相对于牙套420旋转时的阻力。
下面将描述上述结构的液体泵400的操作原理：
当液体泵400处于未使用状态时，弹性机构430处于第一位置，弹性机构430的上基座432的凹平台436与压头410的压头凸块411相接触，从而弹性条431处于放松状态。
在用户使用液体泵400时，对压头410施加向下的按压力，使压头410向下运动，而套筒440也随之向下运动。此时，套筒440中的凸部441在导向槽422中的倾斜槽部分中运动，从而使弹性机构430从第一位置向第二位置转动。
继续向下按压压头410，使凸块441进入导向槽422中的竖直槽部分，此时弹性机构430转到第二位置，弹性机构430的上基座432的凸平台435与压头410的压头凸块411接触，从而弹性条431转变到预加载状态。
在使用完毕之后，用户撤去对压头410的按压力，压头410在弹性机构430的弹性条431的弹性力的作用下向上运动。随着压头410向上运动，套筒440的凸块441从导向槽422的竖直槽部分运动到倾斜槽部分，之后，在导向槽422和凸块441之间的作用下，弹性机构430从第二位置转动回到第一位置，从而弹性条431回到放松状态。
<第五实施例>
图14a～16b示出了本发明的第五实施例的液体泵500。在以下对第五实施例的描述中，为了表述简洁，主要描述没有包括在之前的实施例中的特征，对与之前的实施例相同的技术特征则不再作详细描述。
如图14a～14c所示，液体泵500包括压头510、牙套520和设置在压头510和牙套520之间的弹性机构530。第五实施例的液体泵500还包括放松推板540，该放松推板540布置在弹性机构530的上基座532之间。弹性机构530的下基座533则抵接在牙套520上。
图15a～15c示出了放松推板540，其中放松推板540包括呈矩形环形状的板体541和从板体541向下悬置的悬臂542，例如在图15a所示的结构中，在放松推板540上形成有两个互相相对地设置的悬臂542。如图15c中更清楚地显示的，板体541的两个侧壁分别形成为台阶状，其下表面包括上台阶面543和下台阶面544，在上台阶面543和下台阶面544之间为过渡面545，该过渡面545在图中被形成为斜面的形式，当然该过渡面545也可形成为弧面。
放松推板540能够在第一位置和第二位置之间线性运动。当放松推板540处于第一位置时，下台阶面544与弹性机构530的上基座532相接触，从而使上基座532和下基座533之间的距离较大，弹性机构530的弹性条531处于放松状态，而在放松推板540处于第二位置时，上台阶面543与弹性机构530的上基座532相接触，使上基座532和下基座533之间的距离变小，从而对弹性条531预加载。
在图示的两个悬臂542的自由端上分别设置有凸爪546，相应地在牙套520上、例如在牙套520的上套筒上设置与两个凸爪546对应的两个引导楔块521。如图16a和图16b所示，两个引导楔块521中，一个引导楔块521包括面向上的斜面，另一个引导楔块521包括面向下的斜面。
下面将具体描述上述结构的液体泵500的操作原理：
当液体泵500处于未使用状态时，放松推板540处于第一位置，此时放松推板540的下台阶面544与弹性机构530的上基座532相接触，从而使弹性机构530的弹性条531处于放松状态。
在使用液体泵500时，用户对压头510施加向下的按压力，随着压头510向下运动，放松推板540也向下运动，其一个悬臂542与对应的斜面向上的引导楔块521接触，例如在图中是该悬臂542的凸爪546与引导楔块521相接触并相互作用。在该引导楔块521的斜面的作用下，使放松推板540从第一位置向第二位置线性运动。
当放松推板540运动到第二位置时，放松推板540的上台阶面543与弹性机构530的上基座532相接触，从而使弹性条531处于预加载状态。
在一次泵送之后，撤去对压头510的按压力，压头510和放松推板540在弹性条531的弹性作用下向上运动。在向上运动的过程中，放松推板540 的另一个悬臂542、例如其凸爪546与对应的斜面向下的另一个引导楔块521接触并相互作用。在该另一个引导楔块521的斜面的作用下，使放松推板540从第二位置回到第一位置，从而使弹性机构530的弹性条531回到放松状态。
由此，通过放松推板540与牙套520上的引导楔块521之间的相互作用，实现放松推板540在第一位置和第二位置之间的自动切换。
<第六实施例>
图17a～19b示出了本发明的第六实施例的液体泵600。在以下对第六实施例的描述中，为了表述简洁，主要描述没有包括在之前的实施例中的特征，对与之前的实施例相同的技术特征则不再作详细描述。
如图17a和17b所示，液体泵600包括压头610、牙套620和设置在压头610和牙套620之间的弹性机构630。弹性机构630包括上基座632、下基座633和连接在上基座632和下基座633之间的至少一个弹性条631。
在第六实施例中，在弹性机构630的下基座633和牙套620之间设置有放松推板640。图19a和19b示出了该放松推板640的结构。该放松推板640的上表面为台阶状，包括上台阶面641和下台阶面642，在上台阶面641和下台阶面642之间是呈斜面的过渡面643。当然过渡面643也可以是弧面。
相对应地，在下基座633的下表面上形成有凸部634，该凸部634与放松推板640的上台阶面641或下台阶面642相接触。放松推板640能够在第一位置和第二位置之间线性运动。在第一位置中，凸部634与放松推板640的下台阶面642相接触，从而弹性机构630的上基座632和下基座633之间的距离较大，弹性条631处于放松状态；在第二位置中，凸部634与放松推板640的上台阶面641相接触，使得弹性机构630的上基座632和下基座633之间的距离减小，从而对弹性条631预加载。
在推板640的下套筒上连接有活塞杆650。如图18a和18b所示，在活塞杆650上形成有两个相对设置的引导楔块651，其中一个引导楔块651包括面向上的斜面，另一个引导楔块651包括面向下的斜面。
下面将具体描述上述结构的液体泵600的操作原理：
当液体泵600处于未使用状态时，放松推板640处于第一位置，放松推 板640的下台阶面642与弹性机构630的下基座633下表面上的凸部634接触，从而使弹性条631处于放松状态。
在使用液体泵600的过程中，用户对压头610施加向下的按压力，使得连接在压头610的下套筒上的活塞杆650也向下运动。在活塞杆650向下运动的过程中，活塞杆650上的包括面向下的斜面的一个引导楔块651与放松推板640相接触并相互作用。在该包括面向下的斜面的引导楔块651的作用下，放松推板640从第一位置向第二位置线性运动，使得弹性机构630的凸部634与推板640的上台阶面641相接触。由此，弹性机构630的弹性条631转变到预加载状态。
在一次泵送之后，用户撤去对压头610的按压力，压头610在弹性机构630的弹性力的作用下向上运动。在向上运动的过程中，活塞杆650的包括面向上的斜面的另一个引导楔块651与放松推板640相接触并相互作用。在该包括面向上的斜面的引导楔块651的作用下，放松推板640从第二位置回到第一位置，使得弹性机构630的凸部634与放松推板640的下台阶面642相接触。由此，弹性机构630的弹性条631回到放松状态。
因此，在第六实施例中，通过放松推板640与活塞杆650上的引导楔块651的相互作用，实现放松推板640在第一位置和第二位置之间的自动切换。
<第七实施例>
图20a～22d示出了本发明的第七实施例的液体泵700。在以下对第七实施例的描述中，为了表述简洁，主要描述没有包括在之前的实施例中的特征，对与之前的实施例相同的技术特征则不再作详细描述。
如图20a和20b所示，液体泵700包括压头710、牙套720和汽缸750。在汽缸750内固定有活塞杆760。该压头710包括下套筒711，弹性机构730的上基座732抵接在下套筒711的下端，且弹性机构730的下基座733抵接在汽缸750内的凸肩部751上，由此，弹性机构730对压头710施加向上的偏置力。
在本发明的第七实施例中，在压头710的套筒711的下端与弹性机构730的上基座732之间还设置有放松环740。该放松环740呈环状，其结构在图 22a～22d中示出。其中，放松环740的下表面上形成有凸支承面742和凹支承面743。并且，放松环740能够在第一位置和第二位置之间转动，在第一位置处，凹支承面743与弹性机构730的上基座732相接触，从而使上基座732和下基座733之间的距离较大，弹性机构730的弹性条731处于放松状态，而在第二位置，凸支承面742与弹性机构730的上基座732相接触，使上基座732和下基座733之间的距离变小，从而对弹性机构730的弹性条731进行预加载。
放松环740在第一位置和第二位置的转动能够自动地实现。举例来说，如图22a～22d中示出的，在放松环740的内表面中形成有至少一个、较佳地为两个互相对置的凹槽741。与凹槽741相对应地，在活塞杆760上形成有至少一个、较佳地为两个互相对置的引导凸条761，如图21a～21c所示。该引导凸条761包括在上部的倾斜部分和在下部的竖直部分。在安装状态下，放松环740的凹槽741与活塞杆760的引导凸条761相配合。
当放松环740向下运动时，凹槽741首先与引导凸条761的倾斜部分相配合，在该倾斜部分的作用下，从第一位置向第二位置转动，而当凹槽741进入到与引导凸条761的竖直部分相配合时，放松环740到达第二位置，并停止转动。
较佳地，如图22c所示，在放松环740与压头710的下套筒711的下端相对的表面上形成有若干珠点744(图中显示的是四个)，通过这些珠点744与下套筒711的下端接触，从而可在放松环740旋转时减少其所受的摩擦阻力。
在此要说明的是，以上所述的凹槽和凸条的结构设置互换，即，在活塞杆760上形成引导槽，而在放松板740的内表面上形成与引导槽的形状相匹配的凸部，该结构同样在本发明的范围之内。
下面将具体描述上述结构的液体泵700的操作原理：
在液体泵700处于未使用状态时，压头710处于行程上止点，而放松环740处于其第一位置，此时放松环740的凹支承面743与弹性机构730的上基座732相接触，弹性机构730的弹性条731处于放松状态。
在使用液体泵700时，用户对压头710施加向下的按压力，使压头710向下运动，而抵接在压头710的下套筒711的下端的放松环740也向下运动。 在放松环740向下运动的过程中，放松环740中的凹槽741首先与活塞杆760中的引导凸条761上部的倾斜部分相配合，并且在该引导凸条761的倾斜部分的作用下从第一位置向第二位置旋转。
随着继续向下按压压头710，放松环740运动到其凹槽741与引导凸条761的竖直部分相配合的位置，此时放松环740转动到第二位置。此时，放松环740的凸支承面742与弹性机构730的上基座732相接触，弹性机构730的弹性条731进入预加载状态。此后，继续向下按压压头710不会导致放松环740的进一步转动。
在一次泵送之后，用户撤去施加在压头710上的按压力，压头710在弹性机构730的弹性力的作用下向上回到其上止点，放松环740也随之向上运动。当放松环740运动到其凹槽741与引导凸条761的倾斜部分相配合的位置时，在该倾斜部分的作用下，放松环740开始从第二位置向第一位置转动。当压头710到达其行程上止点时，放松环740也到达其第一位置，从而放松环740的凹支承面743与弹性机构730的上基座732相接触，从而弹性机构730的弹性条731回到其放松状态。
<第八实施例>
图23～25示出了本发明的第八实施例的液体泵800及其变型结构的液体泵800’。在以下对第八实施例的描述中，为了表述简洁，主要描述没有包括在之前的实施例中的特征，对与之前的实施例相同的技术特征则不再作详细描述。
首先，与之前的实施例不同的是，图23～25所示的液体泵800、800’为喷枪式的液体泵。如图23所示，液体泵800具有汽缸850和活塞杆840，活塞杆840能够在汽缸850内运动。在活塞杆840上设置有枢转扳机810，用于致动活塞杆840。当用户在枢转扳机810上施加按压力时，枢转扳机810枢转，进而使活塞杆840相对于汽缸850运动，从而将产品泵送出来。
液体泵800还包括弹性机构820，如图23所示，弹性机构820包括弹性条821，该弹性条821的第一端822固定在活塞杆840上，第二端823固定在汽缸850或液体泵800的其他固定部件上，从而对活塞杆840施加使之相对于 汽缸850复位的偏置力。
在本发明的第八实施例中，还包括放松板830，该放松板830可转动地套设在活塞杆840上，并与弹性机构820的第一端822相抵接。
图24示出了放松板830的结构，其中，放松板830包括本体，该本体面对弹性机构820的表面上形成有凸面831和凹面832，在放松板830的本体上还形成有拨片833。通过对拨片833进行操作，可使放松板830在第一位置和第二位置之间转动。在第一位置中，放松板830的凹面832与弹性机构820的第一端822相接触时，弹性条821的两端之间的距离较大，从而弹性条821处于放松状态，而在第二位置中，放松板830的凸面831与弹性机构820的第一端822相接触，使弹性条821的两端之间的距离减小，从而对弹性条821预加载。
下面将具体描述上述结构的液体泵800的操作原理：
在液体泵800处于未使用状态时，放松板830处于第一位置，其凹面832与弹性机构820的弹性条821的第一端822相接触，从而使弹性条821处于放松状态。
当需要使用液体泵800时，对放松板830的拨片833进行操作，使放松板830从第一位置转动到第二位置。此时，放松板830的凸面831与弹性条821的第一端822相接触，从而对弹性条821预加载。
在使用完毕之后，操作拨片833，将放松板830转回到第一位置，从而使弹性机构820的弹性条821回到放松状态。
图25中示出的第八实施例的变型结构的液体泵800’与图23所示的液体泵800结构基本类似。即，该液体泵800’包括活塞杆840’、汽缸850’、用于对活塞杆840’施加偏置力的弹性机构820’以及用于调节弹性机构820’的放松板830’。
与液体泵800不同的是，液体泵800’的致动机构是同轴线地安装在活塞杆840’上的按压部810’。该按压部810’使得施加在活塞杆840’上的按压力与活塞杆840’的运动方向相一致，从而能够更有效地利用该按压力。
<第九实施例>
图26a～27c示出了本发明的第九实施例的液体泵900。在以下对第九实施例的描述中，为了表述简洁，主要描述没有包括在之前的实施例中的特征，对与之前的实施例相同的技术特征则不再作详细描述。
如图26a和26b所示，液体泵900包括压头910和牙套920，在压头910和牙套920之间设置有弹性机构930，以向压头910施加向上的偏置力。
如图27a～27c所示，弹性机构930包括上基座932、下基座933和连接在上基座932和下基座933之间的弹性条931。上基座932和下基座933中的一个可以在第一位置和第二位置之间运动。
在图26a和26b所示的结构中，上基座932可在第一位置和第二位置之间运动，其中，在图26a所示的第一位置中，弹性条931的两端之间的连线相对于液体泵900的纵向轴线倾斜，例如成锐角。这样，在第一位置中，弹性条931的两端之间的距离L1较大，从而弹性条931处于放松状态。
如图26b所示，在上基座932的第二位置中，弹性条931的两端之间的连线基本平行于液体泵900的纵向轴线，由此弹性条931的两端之间的距离L2小于第一位置时的距离L1，从而使弹性条931预加载。
在此，在第二位置中，弹性条931的两端之间的连线也可以不平行于液体泵900的纵向轴线，只要弹性条931此时在两端之间的连线与液体泵900的纵向轴线之间的夹角小于第一位置中弹性条931的两端之间的连线与液体泵900的纵向轴线的夹角，也可使得上述L2小于L1，从而使得在第二位置中，弹性条931处于预加载状态。
另外，在该第九实施例中，也可以是下基座933可在第一位置和第二位置之间运动。
下面将具体描述上述结构的液体泵900的操作原理：
在液体泵900处于未使用状态时，弹性机构930的上基座932处于第一位置，从而弹性机构930的弹性条931的两端之间的距离较大，弹性条931处于放松状态。
在需要对液体泵900进行操作时，推动弹性机构930的上基座932，使其从第一位置向第二位置运动。当上基座932运动到第二位置时，弹性条931的两端之间的距离减小，从而使弹性条931预加载。
对液体泵900使用完毕之后，用户从反方向推动上基座932，使上基座932从第二位置回到第一位置，从而使弹性条931回到放松状态。
<其他变型结构>、
以上对本发明的具体实施例进行了详细描述。在这些实施例的基础上，还可进行对本领域技术人员来说显而易见的修改和变型，同样在本发明的保护范围之内。
在以上各实施例中，弹性机构包括上基座和下基座。不过，根据实际情况，也可不包括上基座和下基座中的至少一个，而是将弹性条的相应的端部直接连接到压头或牙套上。
在图中所示的各实施例的结构中，弹性机构通常包括两个弹性条。不过，也可以根据需要设置其他数量的弹性条，例如一个、三个或更多个，这些弹性条可以互相均匀间隔地布置，也可以间隔不均匀地布置。
在图中所示的结构中，当下压压头时，弹性机构的弹性条大部分都是径向向外变形的。不过，本领域技术人员可知，在空间允许的条件下，弹性条也被设置成随着压头被下压而径向向内变形。

Claims (21)

  1. 一种液体泵，所述液体泵包括活动单元和固定单元，所述活动单元能够相对于所述固定单元运动，从而将产品泵送出来，在所述活动单元和所述固定单元之间设置有弹性机构，所述弹性机构包括至少一个弹性条，所述弹性条对所述活动单元施加偏置力，以在泵送所述产品之后使所述活动单元复位，其特征在于，
    所述液体泵还包括弹性机构调节件，所述弹性机构调节件形成在所述弹性机构上，或者与所述弹性机构相连，并且所述弹性机构调节件能够在第一位置和第二位置之间运动，在所述第一位置中，所述弹性机构的所述弹性条处于放松状态，而在所述第二位置中，所述弹性机构的所述弹性条处于预加载状态。
  2. 如权利要求1所述的液体泵，其特征在于，所述弹性机构由具有弹性的非金属材料制成。
  3. 如权利要求1或2所述的液体泵，其特征在于，所述液体泵为按压式的液体泵，所述活动单元包括压头和连接在所述按压头上的活塞杆；所述固定单元包括牙套和与牙套相连的汽缸。
  4. 如权利要求3所述的液体泵，其特征在于，所述弹性机构包括上基座和下基座，所述上基座可转动地抵靠在所述压头上，所述下基座可转动地抵靠在所述牙套上；
    所述弹性机构调节件包括所述下基座，其中，所述下基座的下表面形成有凸支承面和凹支承面，在所述牙套上形成有凸块，当所述弹性机构调节件处于所述第一位置时，所述凹支承面与所述凸块相配合，当所述弹性机构调节件处于所述第二位置时，所述凸支承面与所述凸块相配合；以及
    在所述下基座上形成有拨片，通过对所述拨片的操作实现所述弹性机构调节件在所述第一位置和所述第二位置之间的转动。
  5. 如权利要求3所述的液体泵，其特征在于，
    所述弹性机构包括上基座和下基座，所述上基座可转动地抵靠在所述压头上，所述下基座可转动地抵靠在所述牙套上；
    所述弹性机构调节件包括所述上基座，其中，所述上基座的上表面形成有凸支承面和凹支承面，在所述压头的下部形成有凸块，当所述弹性机构调节件处于所述第一位置时，所述凹支承面与所述凸块相配合，当所述弹性机构调节件处于所述第二位置时，所述凸支承面与所述凸块相配合；以及
    在所述上基座上形成有拨片，通过对所述拨片的操作实现所述弹性机构调节件在所述第一位置和所述第二位置之间的转动。
  6. 如权利要求3所述的液体泵，其特征在于，所述弹性机构包括下基座，所述下基座的下表面上形成有凸支承面和凹支承面；
    所述弹性机构调节件包括所述下基座和放松环，所述放松环处于所述下基座和所述牙套之间，且所述放松环上形成有凸块，当所述弹性机构调节件处于所述第一位置时，所述凸块与所述凹支承面相配合，而当所述弹性机构调节件处于所述第二位置时，所述凸块与所述凸支承面相接触；
    所述放松环还形成有至少一个拨片，通过对所述拨片的操作实现所述弹性机构调节件在所述第一位置和所述第二位置之间的转动。
  7. 如权利要求3所述的液体泵，其特征在于，所述弹性机构包括上基座，所述上基座的上表面上形成有凸支承面和凹支承面；
    所述弹性机构调节件包括所述上基座和放松环，所述放松环处于所述上基座和所述压头之间，且所述放松环上形成有凸块，当所述弹性机构调节件处于所述第一位置时，所述凸块与所述凹支承面相配合，而当所述弹性机构调节件处于所述第二位置时，所述凸块与所述凸支承面相接触；
    所述放松环还形成有至少一个拨片，通过对所述拨片的操作实现所述弹性机构调节件在所述第一位置和所述第二位置之间的转动。
  8. 如权利要求3所述的液体泵，其特征在于，所述弹性机构包括下基座，所述弹性机构调节件包括设置在所述下基座和所述牙套之间的推板，所述推板包括：位于两端的两个端板以及在所述端板之间延伸的侧板，所述侧板的上表面上形成为台阶状，包括上台阶面下台阶面，并且所述推板能够在所述第一位置和所述第二位置之间线性运动，在所述第一位置中，所述下台阶面与所述下基座的支承面相接触，在所述第二位置中，所述上台阶面与所述下基座的所述支承面相接触。
  9. 如权利要求8所述的液体泵，其特征在于，在所述上台阶面和所述下台阶面之间还包括过渡面，所述过渡面为斜面或弧面。
  10. 如权利要求3所述的液体泵，其特征在于，所述弹性机构调节件自动实现所述第一位置和所述第二位置之间的运动。
  11. 如权利要求10所述的液体泵，其特征在于，所述弹性机构调节件包括形成在所述弹性机构上的套筒，在所述套筒的内表面上形成有至少一个凸块；
    在所述牙套的上套筒上形成有导向槽，所述凸块容纳在所述导向槽中，所述导向槽包括在上部的倾斜部分和在下部的竖直部分；以及
    所述弹性机构包括上基座，所述上基座的上表面形成有凸平台和凹平台；在所述压头的下部形成有压头凸块；
    其中，当所述压头位于其行程的上止点位置时，所述套筒位于所述第一位置，所述上基座的所述凹平台与所述压头凸块相接触；通过下压所述压头，使所述凸块与所述导向槽的倾斜部分相互作用，从而使所述套筒从所述第一位置向所述第二位置转动，当所述凸块进入所述竖直部分时，所述套筒转动到达所述第二位置，从而使所述上基座的所述凸平台与所述压头凸块相接触。
  12. 如权利要求10所述的液体泵，其特征在于，所述弹性机构调节件包括设置在所述弹性机构和所述压头之间的推板，所述推板包括板体和从所述板体向下悬置的第一悬臂和第二悬臂，所述板体的下表面形成为台阶状，包括上台阶面和下台阶面；以及
    所述牙套的上套筒上设置有：第一引导楔块，所述第一引导楔块与所述第一悬臂相对应，并具有面向上的斜面；以及第二引导楔块，所述第二引导楔块与所述第二悬臂相对应，并具有面向下的斜面；
    其中，当所述压头处于行程的上止点时，所述推板处于所述第一位置，在所述第一位置中，所述推板的下台阶面与所述弹性机构的上基座相接触，以使所述弹性条处于放松状态；随着所述压头向下运动，所述第一悬臂与所述第一引导楔块相接触并互相作用，使所述推板从所述第一位置移动到所述第二位置，在所述第二位置中，所述推板的上台阶面与所述弹性机构的所述上基座相接触，以使所述弹性条处于预加载状态；而随着所述压头向上运动，所述第二 悬臂与所述第二引导楔块相接触并相互作用，以使所述推板从所述第二位置回到所述第一位置。
  13. 如权利要求12所述的液体泵，其特征在于，在所述第一悬臂和/或所述第二悬臂的自由端上形成有凸爪，所述凸爪与所述第一引导楔块和/或所述第二引导楔块相作用。
  14. 如权利要求10所述的液体泵，其特征在于，所述弹性机构调节件包括设置在所述弹性机构的下基座与所述牙套之间的推板，所述推板的上表面包括上台阶面和下台阶面；以及
    在所述活塞杆上形成有：第一引导楔块，所述第一引导楔块包括面向下的斜面；以及第二引导楔块，所述第二引导楔块包括面向上的斜面；
    其中，当所述压头处于行程的上止点时，所述推板处于所述第一位置，在所述第一位置中，所述推板的所述下台阶面与所述下基座相接触，使所述弹性条处于放松状态，随着所述压头向下运动，所述第一引导楔块与所述推板相接触并互相作用，使所述推板从所述第一位置移动到所述第二位置，在所述第二位置中，所述推板的所述上台阶面与所述下基座相接触，使所述弹性条预加载；而随着所述压头向上运动，所述第二引导楔块与所述推板相接触并互相作用，以使所述推板从所述第二位置回到所述第一位置。
  15. 如权利要求14所述的液体泵，其特征在于，在所述下基座的下表面上形成有凸部，所述凸部与所述推板的所述上台阶面或所述下台阶面相接触。
  16. 如权利要求1或2所述的液体泵，其特征在于，所述液体泵为按压式的液体泵，所述活动单元包括压头，所述压头包括下套筒；
    所述固定单元包括：牙套；汽缸，所述汽缸与所述牙套相连接，所述汽缸中形成有凸肩部；以及活塞杆，所述活塞杆固定在所述汽缸内；以及
    所述弹性机构包括上基座和下基座，所述下基座抵靠在所述凸肩部上，且在所述上基座和所述压头的所述下套筒的下端之间设置有放松环；所述放松环的下表面上形成有凸支承面和凹支承面，其中，当所述放松环处于所述第一位置，所述凹支承面与所述上基座相接触，所述弹性条处于放松状态，而当所述放松环处于所述第二位置，所述凸支承面与所述上基座相接触，所述弹性条处于预加载状态；
    其中，在所述放松环的内表面上形成有至少一个凹槽，在所述活塞杆上形成有至少一个引导凸条，所述引导凸条包括上部的倾斜部分和下部的竖直部分，所述凹槽配合在所述引导凸条上，当所述凹槽与所述倾斜部分相配合时，所述压头的向下运动使所述放松环从所述第一位置转动到所述第二位置，而所述压头的向上运动使所述放松环从所述第二位置转动回到所述第一位置；或者其中，在所述放松环的内表面上形成有至少一个凸块，在所述活塞杆上形成有至少一个引导槽，所述引导槽包括上部的倾斜部分和下部的竖直部分，所述凸块配合在所述引导槽中，当所述凸块与所述倾斜部分相配合时，所述压头的向下运动使所述放松环从所述第一位置转动到所述第二位置，而所述压头的向上运动使所述放松环从所述第二位置转动回到所述第一位置。
  17. 如权利要求3所述的液体泵，其特征在于，所述弹性机构包括上基座，所述弹性机构调节件至少包括所述上基座，其中，所述上基座能够在所述第一位置和所述第二位置之间线性运动，当所述上基座处于所述第一位置时，所述弹性条的两端之间的距离为L1，当所述上基座处于所述第二位置时，所述弹性条的两端之间的距离为L2，其中L1>L2。
  18. 如权利要求3所述的液体泵，其特征在于，所述弹性机构包括下基座，所述弹性机构调节件至少包括所述下基座，其中，所述下基座能够在所述第一位置和所述第二位置之间线性运动，当所述下基座处于所述第一位置时，所述弹性条的两端之间的距离为L1，当所述下基座处于所述第二位置时，所述弹性条的两端之间的距离为L2，其中L1>L2。
  19. 如权利要求1或2所述的液体泵，其特征在于，所述液体泵为喷枪式液体泵，其中所述固定单元包括汽缸，所述活动单元包括活塞杆，所述活塞杆可运动地套设在所述汽缸中，在所述活塞杆上设置有致动部件，用于致动所述活塞杆相对于所述汽缸运动
    所述弹性机构包括弹性条，所述弹性条的第一端固定在所述活塞杆上，所述弹性条的第二端固定在所述固定单元上，
    其中，所述弹性机构调节件包括套设在所述活塞杆上的放松板，所述放松板与所述弹性条的所述第一端抵接，所述放松板的面对所述弹性机构的表面上形成有凸面和凹面，并且，所述放松板能够在所述第一位置和所述第二位置 之间转动，在所述第一位置，所述凹面与所述弹性条的所述第一端接触，使所述弹性条处于放松状态，在所述第二位置，所述凸面与所述弹性条的所述第一端接触，使所述弹性条处于预加载状态。
  20. 如权利要求19所述的液体泵，其特征在于，所述致动部件为枢转扳机。
  21. 如权利要求19所述的液体泵，其特征在于，所述致动部件为同轴线地安装在所述活塞杆上的按压部。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021187485A (ja) * 2020-05-28 2021-12-13 株式会社吉野工業所 液体噴出器
EP4011799A4 (en) * 2019-08-08 2023-08-30 Yaowu Ding PUMPING DEVICE

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111392232A (zh) * 2019-01-03 2020-07-10 丁要武 乳液泵
KR102186036B1 (ko) * 2019-12-12 2020-12-03 (주)연우 탄성 부재 및 이를 포함하는 펌프 조립체
JP7361619B2 (ja) * 2020-01-31 2023-10-16 株式会社吉野工業所 吐出器
JP7378320B2 (ja) 2020-02-28 2023-11-13 株式会社吉野工業所 吐出器
JP7378319B2 (ja) * 2020-02-28 2023-11-13 株式会社吉野工業所 吐出器
KR102427023B1 (ko) * 2020-08-24 2022-07-29 주식회사 삼화 액체 분사를 위한 펌프
CN113716204B (zh) * 2021-05-07 2024-02-06 丁要武 一种可矫正的按压泵
CN113578572B (zh) * 2021-07-29 2022-05-24 宁波辰明喷雾器有限公司 一种全塑料型喷雾装置
KR102572953B1 (ko) * 2021-12-31 2023-08-31 (주)성진코스메틱스 화장품 용기 및 화장품 용기용 펌핑부재
CN115814982B (zh) * 2023-02-24 2023-06-13 万通(苏州)定量阀系统有限公司 一种外置弹性装置及分配装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1435190A (en) * 1973-12-20 1976-05-12 English Glass Co Ltd Pumps
CN202591008U (zh) * 2012-05-16 2012-12-12 丁要武 按压式液体泵
CN202621361U (zh) * 2012-05-16 2012-12-26 丁要武 按压式液体泵
CN203568119U (zh) * 2013-11-13 2014-04-30 黄建艺 外置弹簧乳液泵
CN103964056A (zh) * 2013-01-31 2014-08-06 丁要武 按压式液体泵
CN104071437A (zh) * 2013-03-25 2014-10-01 丁要武 弹簧外置式液体泵
CN207482522U (zh) * 2017-11-21 2018-06-12 丁要武 液体泵

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452905A (en) * 1968-02-16 1969-07-01 Leeds & Micallef Self-sealing leak-proof pump
FR2725247B1 (fr) * 1994-10-03 1996-12-20 Py Daniel C Pompe a fluide sans volume mort
US5673824A (en) * 1995-05-31 1997-10-07 Taplast Srl Plastic dosing pump for dispensing liquids from containers
US6033384A (en) * 1997-12-18 2000-03-07 Py; Daniel One-way actuation release mechanism for a system for applying medicament
US6003738A (en) * 1997-12-29 1999-12-21 Continental Sprayers International,Inc. Child-resistant rotating lock for manually operated pump dispenser
FR2806933B1 (fr) * 2000-03-31 2003-04-11 Oreal Bouton-poussoir a effet ressort
FR2813863B1 (fr) * 2000-09-08 2003-03-21 Rexam Sofab Distributeur de produit liquide
EP1266696A1 (en) * 2001-06-13 2002-12-18 Taplast S.p.A. Bellows pump for delivery gas-liquid mixtures
JP4021268B2 (ja) * 2002-07-24 2007-12-12 勝利 増田 流体吐出ポンプ
FR2854390B1 (fr) * 2003-04-30 2005-07-15 Techniplast Dispositif pulverisateur et verseur pour la distribution d'un produit liquide ou pateux
ITVI20040183A1 (it) * 2004-07-26 2004-10-26 Taplast Spa Elemento elastico per dispositivi erogatori di fluidi e relativo dispositivo di erogazione
NL1027982C2 (nl) * 2005-01-10 2006-07-11 Afa Polytek Bv Dunwandige doseerinrichting met integraal vervaardigde trekker en veer, alsmede werkwijze voor het samenstellen daarvan.
DE102008002773A1 (de) * 2008-02-18 2009-08-20 Evonik Stockhausen Gmbh Saugpumpe für eine Spendereinheit und Spendereinheit
FR2930526B1 (fr) * 2008-04-25 2010-05-21 Valois Sas Dispositif de distribution de produit fluide
US8104646B2 (en) * 2008-06-16 2012-01-31 Meadwestvaco Calmar, Inc. Trigger sprayer having a reduced number of parts and a double tubular valve member
RU2683982C2 (ru) * 2011-09-20 2019-04-03 Диспенсинг Текнолоджиз Б.В. ДОЗИРУЮЩЕЕ И АКТИВИРУЕМОЕ РАСПЫЛИТЕЛЬНЫЕ УСТРОЙСТВА С ФУНКЦИОНАЛЬНОСТЬЮ АЭРОЗОЛЬНОГО БАЛЛОНЧИКА ("Flairosol II")
CN103420021B (zh) * 2012-05-16 2016-04-20 丁要武 按压式液体泵
CN103420022B (zh) * 2012-05-16 2015-09-09 丁要武 按压式液体泵
CN206336595U (zh) * 2016-11-15 2017-07-18 无锡圣马科技有限公司 弹簧外置式喷雾泵
US10794445B2 (en) * 2018-01-03 2020-10-06 Silgan Dispensing Systems Corporation Dispensing pump with polymer compression spring assembly
US10138971B1 (en) * 2018-01-03 2018-11-27 Silgan Dispensing Systems Corporation Dispensing pump with polymer compression spring assemby

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1435190A (en) * 1973-12-20 1976-05-12 English Glass Co Ltd Pumps
CN202591008U (zh) * 2012-05-16 2012-12-12 丁要武 按压式液体泵
CN202621361U (zh) * 2012-05-16 2012-12-26 丁要武 按压式液体泵
CN103964056A (zh) * 2013-01-31 2014-08-06 丁要武 按压式液体泵
CN104071437A (zh) * 2013-03-25 2014-10-01 丁要武 弹簧外置式液体泵
CN203568119U (zh) * 2013-11-13 2014-04-30 黄建艺 外置弹簧乳液泵
CN207482522U (zh) * 2017-11-21 2018-06-12 丁要武 液体泵

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3715280A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4011799A4 (en) * 2019-08-08 2023-08-30 Yaowu Ding PUMPING DEVICE
JP2021187485A (ja) * 2020-05-28 2021-12-13 株式会社吉野工業所 液体噴出器
JP7423159B2 (ja) 2020-05-28 2024-01-29 株式会社吉野工業所 液体噴出器

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US20200306779A1 (en) 2020-10-01
EP3715280A1 (en) 2020-09-30
CN109809026A (zh) 2019-05-28
JP7199444B2 (ja) 2023-01-05
JP2021503424A (ja) 2021-02-12

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