Elastic reset mechanism and pressing pump comprising same

Abstract

An elastic reset mechanism is installed in a pressing pump and supported between a movable part and a fixed part of the pressing pump, and the elastic reset mechanism comprises an elastic unit. Wherein the elastic unit is provided and mounted such that, when the movable member is pressed downward with respect to the fixed member, a distance between an upper portion and a lower portion of the elastic unit is increased, so that the elastic unit is stretched. The utility model further discloses a pressing pump comprising the elastic reset mechanism. The elastic reset mechanism and the pressing pump comprising the elastic reset mechanism solve the problems that the pressing pump is heavy in pressing hand feeling and cannot rebound to the top.

Description

Technical Field

[0001] This application relates to the field of packaging liquid or semi-liquid products, and more particularly to a press pump for dispensing products from a container, and in particular the design of a resilient reset mechanism in the press pump. Background Technology

[0002] Press pumps are widely used in various fields such as daily chemical products, pharmaceuticals, and food. They are used to dispense products from containers containing liquids or semi-liquids for consumer use. Press pumps include a spring-loaded return mechanism that allows moving parts, such as the pump head, to return to their ready-to-use position after being pressed down. Generally, existing press pumps use a metal spring as the spring-loaded return mechanism.

[0003] With increasingly stringent environmental protection requirements, some manufacturers are beginning to replace metal springs with plastic springs to achieve resource recycling. This allows for easy recycling of old pumps after use, eliminating the need to disassemble the metal springs to separate them from the other plastic components of the pump.

[0004] During use, two problems were found with plastic springs. First, plastic springs have less elasticity than metal springs, requiring more pressure to press down, resulting in a heavier feel when pressed. Second, although a greater pressing force is required, the elastic force generated after deformation is relatively small, causing the plastic spring to fail to return to its original position after use. This can lead to insufficient product dispensing per press, and even a gradual decrease in the pump's output.

[0005] Therefore, in this field, there are ways to improve the structure of a press pump, specifically the elastic reset mechanism in the press pump, to overcome the technical problems existing in the plastic spring-type elastic reset mechanism of the prior art described above. Utility Model Content

[0006] This application is made to solve the technical problems existing in the prior art. The purpose of this application is to provide an improved elastic reset mechanism that can be made of plastic and provides sufficient rebound force to allow the pump to fully return to its pre-pressing state.

[0007] This application provides an elastic reset mechanism installed in a press pump and supported between a movable part and a fixed part of the press pump. The elastic reset mechanism includes an elastic unit. The elastic unit is configured and installed such that when the movable part is pressed downward relative to the fixed part, the distance between the upper and lower portions of the elastic unit increases, thereby stretching the elastic unit.

[0008] The elastic reset mechanism of this structure can provide sufficient rebound force for the pump and make the user feel lighter when pressing, thus solving the problem of insufficient rebound.

[0009] Preferably, the elastic reset mechanism includes an upper spring coil and a lower spring coil, with an elastic element connected between the upper and lower spring coils. The upper and lower spring coils can be fitted onto the piston rod of the pump to help secure the elastic reset mechanism.

[0010] Preferably, the resilient reset mechanism comprises two or more resilient units. These resilient units may, for example, be arranged in a mirror-symmetrical manner.

[0011] This application also discloses a push-button pump, which includes a movable part and a fixed part. The movable part includes a pressure head and a piston rod connected below the pressure head. The fixed part includes a toothed sleeve and a cylinder fixedly connected together, wherein the piston rod extends into the cylinder. The push-button pump is equipped with the elastic reset mechanism described above.

[0012] In one specific embodiment, the upper end of the elastic reset mechanism is supported below the pressure head, and the lower end of the elastic reset mechanism is supported on the top surface of the dental brace.

[0013] Preferably, the spring return mechanism includes an upper spring coil and a lower spring coil, with an elastic unit connected between the upper spring coil and the lower spring coil.

[0014] Preferably, at least one of the upper and lower coils of the spring has a notch. This notch allows for easy assembly of the resilient reset mechanism onto the push pump.

[0015] Preferably, the elastic reset mechanism further includes:

[0016] The upper lever portion, the lower half of the elastic unit is connected to the upper coil of the spring via the upper lever portion; and

[0017] The lower lever section connects the upper half of the elastic element to the lower coil of the spring via the lower lever section.

[0018] By setting up the upper and lower levers, the lever principle is utilized to reduce the force required to press.

[0019] Preferably, the upper lever portion and the lower lever portion include at least one of the following structures:

[0020] The width of at least one of the upper lever portion and the lower lever portion is set to be smaller than the width of the elastic unit;

[0021] At least one of the upper lever portion and the lower lever portion includes a bent portion;

[0022] One of the upper and lower lever portions has an opening, and the other of the upper and lower lever portions extends through the opening; and

[0023] A hinge portion is formed at least one of the locations between the upper lever portion and the upper coil of the spring, and between the lower lever portion and the lower coil of the spring.

[0024] Preferably, the press pump includes two or more resilient reset mechanisms.

[0025] In another specific embodiment, a locking part is formed on the inner surface or the outer surface of the cylinder, and the upper end of the elastic reset mechanism is fixedly fitted on the locking part.

[0026] The lower end of the elastic reset mechanism is fixedly fitted onto the piston rod.

[0027] Preferably, the pump also includes a spring retaining member, which is fixedly connected to the piston rod. A protrusion is formed on the outer surface of the spring retaining member, and the lower end of the elastic reset mechanism is engaged with the protrusion.

[0028] More preferably, a limiting part is also provided at the bottom of the spring fixing member to prevent the lower end of the elastic reset mechanism from dislodging from the lower end of the spring fixing member.

[0029] In one specific structure, the elastic component of the elastic reset mechanism includes multiple elastic units and connecting portions connecting the elastic units.

[0030] Preferably, the elastic element includes at least one of the following structures:

[0031] A weak section is formed between the upper and lower sides of the elastic element;

[0032] The upper edge of the elastic element is curved, and the lower edge of the elastic element is straight.

[0033] The elastic unit is at least one of elliptical or rectangular shapes.

[0034] In one specific configuration, a locking part is formed on the inner surface of the cylinder, thereby providing an elastic reset mechanism within the cylinder.

[0035] In another specific structure, a locking part is formed on the outer surface of the cylinder, an elastic reset mechanism is sleeved on the outside of the cylinder, and a longitudinally extending slot is formed on the peripheral wall of the cylinder, a protrusion is fitted into the slot and extends from the inside of the cylinder to the outside.

[0036] Preferably, the pump can be a bladder pump, wherein a space is formed between the pump head and the valve, and a bladder is installed in the space, and an elastic reset mechanism is disposed in the bladder.

[0037] The press pump can be an emulsion pump, or it can be a foam pump, vacuum pump, or other similar type. Attached Figure Description

[0038] The accompanying drawings illustrate a non-limiting preferred embodiment of the present invention. The features and advantages of the present invention become more apparent when viewed in conjunction with the drawings. Specifically:

[0039] Figure 1 A side view of a push-button pump according to a first embodiment of this application is shown, wherein the push-button pump is in its unpressed state.

[0040] Figure 2 It shows Figure 1 Another side view of the pump, showing the pump in its pressed state.

[0041] Figures 3a-3c It shows Figure 1 Views of the resilient reset mechanism in the push-button pump, wherein Figure 3a It is a front view. Figure 3b It is a side view. Figure 3c It's a 3D image.

[0042] Figures 4-9 Various alternative implementations of the resilient reset mechanism are shown.

[0043] Figure 10 A side view of a push pump according to a second embodiment of this application is shown.

[0044] Figures 11a-11c It shows Figure 10 The views of the elastic reset mechanism of the push pump in the middle, wherein Figure 11a It is a front view. Figure 11b It is a side view. Figure 11c It's a 3D image.

[0045] Figure 12 A side view of a push pump according to a third embodiment of this application is shown.

[0046] Figure 13 A perspective view of a push-button pump according to the fourth embodiment of this application is shown.

[0047] Figure 14 It shows Figure 13 A partially exploded 3D view of the press pump.

[0048] Figure 15a and 15b It shows Figure 13 Views of the resilient reset mechanism of the push pump, wherein Figure 15a It is a front view. Figure 15b It's a 3D image.

[0049] Figure 16a The elastic reset mechanism in the relaxed state is shown.

[0050] Figure 16b The pump is shown in a stretched state.

[0051] Figures 17-20 An alternative implementation of the elastic reset mechanism in the fourth embodiment is shown.

[0052] Figure 21 A perspective view of a push-button pump according to the fifth embodiment of this application is shown.

[0053] Figure 22 It shows Figure 21 A partially exploded 3D view of the press pump.

[0054] Figure 23 A cross-sectional view of a press pump according to a sixth embodiment of this application is shown, wherein the press pump is a bladder pump.

[0055] Figure 24 A cross-sectional view of a foam pump having the resilient reset mechanism of this application is shown.

[0056] Figure 25 A cross-sectional view of a vacuum pump having the resilient reset mechanism of this application is shown.

[0057] (Symbol Explanation)

[0058] 100 press pump

[0059] 110 pressure head

[0060] 120 braces

[0061] 130 cylinder

[0062] 140 piston rod

[0063] 150 elastic reset mechanism

[0064] 151 spring upper coil

[0065] 152 lower coil spring

[0066] 153 elastic units

[0067] 153-1 (First end of elastic element)

[0068] 153-2 (Second end of elastic element)

[0069] 154 Upper Lever Section

[0070] 155 Lower Lever Section

[0071] 156 gaps

[0072] 157 opening

[0073] 200 press pump

[0074] 250 elastic reset mechanism

[0075] 251 spring upper coil

[0076] 252 lower coil spring

[0077] 253 elastic elements

[0078] 254 hinge section

[0079] 300 press pump

[0080] 350 elastic reset mechanism

[0081] 351 spring upper coil

[0082] 352 lower coil spring

[0083] 400 press pump

[0084] 410 pressure head

[0085] 420 braces

[0086] 430 cylinder

[0087] 431 Card Parts

[0088] 440 piston rod

[0089] 450 elastic reset mechanism

[0090] 451 spring upper coil

[0091] 452 lower coil spring

[0092] 453 Elastic Component

[0093] 454 elastic element

[0094] 455 Connector

[0095] 456 Weak points

[0096] 460 spring fixing component

[0097] 461 bumps

[0098] 462 Limiting Part

[0099] 500 press pump

[0100] 510 pressure head

[0101] 520 braces

[0102] 530 cylinder

[0103] 531 convex strip

[0104] 532 slot

[0105] 550 elastic reset mechanism

[0106] 551 spring upper coil

[0107] 552 lower coil spring

[0108] 560 Spring Fixing Component

[0109] 561 bumps

[0110] 562 Limiting Part

[0111] 600 press pump

[0112] 610 pressure head

[0113] 620 pressure head

[0114] 630 cysts

[0115] 650 elastic reset mechanism

[0116] 700 foam pump

[0117] 800 vacuum pump Detailed Implementation

[0118] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. It should be understood that the embodiments shown in the drawings are merely preferred embodiments of this utility model and do not constitute a limitation on the scope of this utility model. Those skilled in the art can make various obvious modifications, variations, and equivalent substitutions to this utility model based on the embodiments shown in the drawings. Furthermore, without contradiction, the technical features in the different embodiments described below can be arbitrarily combined with each other, all of which fall within the protection scope of this utility model.

[0119] <First Embodiment>

[0120] Figures 1-9 An exemplary structure of the push pump 100 and its components according to a first embodiment of this application is shown.

[0121] like Figure 1 As shown, the press pump 100 includes a press head 110, a toothed sleeve 120, and a cylinder 130. The toothed sleeve 120 and the cylinder 130 are fixedly connected together. A piston rod 140 is connected to the lower part of the press head 110 and extends into the cylinder 130. The press head 110 can move back and forth in the vertical direction relative to the toothed sleeve 120 and the cylinder 130, along with the piston rod 140. Thus, the press head 110 and the piston rod 140 are moving parts, while the toothed sleeve 120 and the cylinder 130 are fixed parts.

[0122] The press pump 100 also includes a resilient reset mechanism 150, which is made of plastic and is disposed between the moving part and the fixed part of the press pump 100. For example, as shown in the figure, the resilient reset mechanism 150 is supported between the lower side of the press head 110 and the top surface of the dental brace 120.

[0123] When the pressure head 110 is pressed down, the elastic reset mechanism 150 is deformed under pressure, thereby accumulating a rebound force in the elastic reset mechanism 150, such as... Figure 2 As shown in the diagram. When the pressing force applied to the pressure head 110 is removed, the rebound force stored in the elastic reset mechanism 150 causes the pressure head 110 to return upward to its top dead center position, ready for the next use.

[0124] Figures 3a-3c It shows Figure 1 Different views of the elastic reset mechanism 150 of the press pump 100 are shown. The elastic reset mechanism 150 includes an upper spring coil 151, a lower spring coil 152, and an elastic unit 153. Preferably, an upper lever portion 154 is provided between the elastic unit 153 and the upper spring coil 151, or in other words, the upper lever portion 154 is connected between one end of the elastic unit 153 and the upper spring coil 151. Similarly, a lower lever portion 155 is provided between the lower spring coil 152 and the other end of the elastic unit 153.

[0125] In the structure shown in the figure, the elastic unit 153 is ring-shaped, with its first end 153-1 in the upper half pointing downwards and connected to the lower lever portion 155, and its second end 153-2 in the lower half pointing upwards and connected to the upper lever portion 154. Thus, as can be seen from... Figure 1 and 2 As seen in the diagram, the upper spring coil 151 is supported below the pressure head 110, and the lower spring coil 152 is supported on top of the dental valve 120. Thus, when the pressure head 110 is pressed down, the upper spring coil 151 and the lower spring coil 152 move closer together. Through the lever action of the upper lever portion 154 and the lower lever portion 155, the distance between the first end 153-1 and the second end 153-2 increases. During this process, the elastic unit 153 elastically expands, accumulating elastic force within it.

[0126] After the pressure applied to the pressure head 110 is removed, under the action of the elastic force of the elastic unit 153, the distance between the first end 153-1 and the second end 153-2 decreases, so that the elastic reset mechanism 150 is restored to the state before being pressed, thereby pushing the pressure head 110 to its upper ready position.

[0127] Preferably, in order to increase the elastic force generated by the deformation of the elastic unit 153, the width of the elastic unit 153 is set to be wider, for example, wider than the upper lever portion 154 and the lower lever portion 155.

[0128] Further preferably, the upper lever portion 154 and the lower lever portion 155 may also be made of elastic material and participate in elastic deformation when subjected to pressure.

[0129] In addition to the structure of the elastic reset mechanism 150 described above, the elastic reset mechanism 150 can also be configured with other structures. Figures 4-9 The structure of the elastic reset mechanism 150 in various alternative embodiments is shown.

[0130] For example, Figure 4 The elastic unit 153 shown is approximately C-shaped, with the first end 153-1 and the second end 153-2 of the elastic unit 153 on both sides of the notch in the C-shape, respectively. Figure 5 The elastic unit 153 of the elastic reset mechanism 150 shown in the figure has a generally V-shaped shape. In other words, the elastic unit 153 includes a straight portion, while the portion that connects to the upper lever portion 154 and the lower lever portion 155 is preferably arc-shaped.

[0131] exist Figure 6 In the elastic reset mechanism 150, notches 156 are formed on the upper spring coil 151 and the lower spring coil 152. By forming the notches 156, the upper spring coil 151 can be easily fitted onto the pressure head 110, and the lower spring coil 152 can be fitted onto the dental sleeve 120.

[0132] exist Figure 7 In the elastic reset mechanism 150, the elastic unit 153 has the same width as the upper lever portion 154 and the lower lever portion 155. Additionally, Figure 7 The elastic reset mechanism 150 shown does not include the upper spring coil 151 and the lower spring coil 152. That is, the upper spring coil 151 and the lower spring coil 152 in this application are optional. The free ends of the upper lever portion 154 and the lower lever portion 155 can be directly supported or connected to the moving and fixed parts of the press pump 100.

[0133] exist Figure 8 In the structure shown, the upper lever portion 154 and the lower lever portion 155 are each formed with a bent portion. The upper lever portion 154 and the lower lever portion 155 with the bent portion can make the force acting on the upper lever portion 154 and the lower lever portion 155 approximately longitudinal, reduce the lateral component force, and thereby improve the efficiency of converting pressing force into spring force.

[0134] exist Figure 9In the structure shown, an opening 157 is formed on the lower lever portion 155, and the upper lever portion 154 extends upward through the opening 157.

[0135] <Second Embodiment>

[0136] Figures 10-11c A push-button pump 200 according to a second embodiment of this application is shown. Unless otherwise described or conflicted, the specific structures described above with respect to the first embodiment also apply to the second embodiment. In the following description, identical structures will not be described in detail again; instead, structures different from those in the first embodiment will be specifically described.

[0137] like Figure 10 As shown, the push pump 200 includes a resilient reset mechanism 250. (As indicated...) Figures 11a-11c As shown, the elastic reset mechanism 250 includes an upper spring coil 251, a lower spring coil 252, and two elastic units 253 connected between the upper spring coil 251 and the lower spring coil 252. These two elastic units 253 can be connected to the upper spring coil 251 and the lower spring coil 252, for example, via an upper lever portion and a lower lever portion, respectively. Alternatively, as described in the first embodiment, the upper and lower lever portions can be omitted. The two elastic units 153 can be arranged mirror-symmetrically relative to each other, as shown in the figure.

[0138] In addition, such as Figure 11a The illustration shows the two elastic elements 153 in different planes. However, those skilled in the art will recognize that the two elastic elements 153 may also be in the same plane. These are all within the scope of this application.

[0139] Furthermore, depending on the actual application and usage requirements, such as the requirement for elastic force, the elastic reset mechanism 150 may include a greater number of elastic units 253, such as three, four, etc.

[0140] Furthermore, preferably, a hinge portion 254 is formed at the connection between the elastic unit 253 and the upper coil of the spring 251. When subjected to pressing pressure, the hinge portion 254 deforms first, and then the elastic unit 253 deforms accordingly. In this way, the applied pressing force can be reduced, making it easier to press the pump 200 downward.

[0141] Similarly, a hinge portion 254 may also be formed at the connection between the elastic unit 253 and the lower coil of the spring 252.

[0142] <Third Embodiment>

[0143] Figure 12A push-button pump 300 according to a third embodiment of this application is shown. Unless otherwise described or conflicted, the specific structures described above with respect to the first and second embodiments also apply to the third embodiment. In the following description, identical structures will not be described in detail again; instead, structures in the third embodiment that differ from those in the first and second embodiments will be specifically described.

[0144] like Figure 12 As shown, the press pump 300 is provided with two stacked elastic reset mechanisms 350. The upper spring coil of the upper elastic reset mechanism 350 is supported on the press head, and the lower spring coil of the lower elastic reset mechanism 350 is supported on the toothed bracket. The lower spring coil of the upper elastic reset mechanism 350 and the upper spring coil of the lower elastic reset mechanism 350 abut together.

[0145] For example, the lower coil of the upper elastic reset mechanism 350 and the upper coil of the lower elastic reset mechanism 350 may be integrally formed, or they may be fixed together by melting or other means, or they may simply be abutted together. All of these situations are within the scope of this application.

[0146] <Fourth Embodiment>

[0147] Figures 13-20 A push-button pump 400 according to a fourth embodiment of this application is shown. Unless otherwise described or conflicted, the specific structures described above with respect to the first to third embodiments also apply to the fourth embodiment. In the following description, identical structures will not be described in detail again; instead, structures different from those in the first to third embodiments will be specifically described.

[0148] The push-button pump 400 of the fourth embodiment includes a pressure head 410, a toothed sleeve 420, and a cylinder 430. The toothed sleeve 420 is connected to the cylinder 430. A piston rod 440 is connected below the pressure head 410 and extends into the cylinder 430. The push-button pump 400 also includes a resilient reset mechanism 450. Figure 13 In the structure of the press pump 400 of the fourth embodiment shown, the elastic reset mechanism 450 is disposed in the cylinder 430.

[0149] Figure 15a and 15bA front view and a perspective view of the elastic reset mechanism 450 are shown. The elastic reset mechanism 450 includes an upper spring coil 451 and a lower spring coil 452, with an elastic member 453 connecting them. The elastic member 453 includes a plurality of elastic elements 454, which may be, for example, generally elliptical. These elastic members 453 are connected together by connecting portions 455, with the uppermost elastic element 454 and the lowermost elastic element 454 respectively connected to the upper spring coil 451 and the lower spring coil 452 via connecting portions 455.

[0150] Back Figure 13 The cylinder 430 is partially cut open, exposing its internal structure. It can be seen that a locking part 431 is formed at the upper end of the cylinder 430, and the upper end of the elastic reset mechanism 450, specifically its upper spring coil 451, is locked onto this locking part 431. A spring fixing member 460 is fixedly connected to the piston rod 440, and the lower end of the elastic reset mechanism 450, specifically its lower spring coil 452, is fixedly connected to the spring fixing member 460.

[0151] exist Figure 14 As can be seen in the exploded perspective view, a protrusion 461 is formed on the spring fixing member 460. The lower end of the elastic reset mechanism 450, specifically its lower spring coil 452, is fitted below the protrusion 461. Thus, when the pressure head 110 is pressed, the spring fixing member 460 moves downward together with the piston rod 440, and the protrusion 461 pushes the lower spring coil 452 of the elastic reset mechanism 450 downward.

[0152] Preferably, a limiting portion 462 is formed at the lower end of the spring retaining member 460, one exemplary structure of which is in the form of a protrusion extending gradually from top to bottom. This limiting portion 462 helps to prevent the lower end of the elastic reset mechanism 450 from disengaging from the spring retaining member 460.

[0153] The following will combine Figure 13 The operation of the press pump 400 in the fourth embodiment will be explained. When the press head 410 is pressed down, the upper end of the elastic reset mechanism 450, which is supported on the locking part 431 of the cylinder 430, remains stationary, while the lower end of the elastic reset mechanism 450 moves downward together with the press head 410 and the piston rod 440, thereby stretching the elastic reset mechanism 450 and accumulating elastic force in it. After the pressing force applied to the press head 410 is removed, the spring fixing member 460 is pushed upward by the elastic force of the elastic reset mechanism 450, and the piston rod 440 and the press head 410 are also pushed upward, so that the press head 410 returns to its upper ready position.

[0154] like Figure 16aAs shown, when the pressure head 410 is in the upper ready position, the elastic reset mechanism 450 is in a relaxed state with its shorter length. When the pressure head 410 is pressed down to its lower stop point, the elastic reset mechanism 450 is stretched, increasing the distance between the upper and lower sides of the elastic unit 454, thus accumulating elastic contraction force. After the pressing force is removed, this elastic contraction force allows the pressure head 410 and piston rod 440 to return to their upper ready positions.

[0155] Apart from Figures 15a-16b Besides the structure shown, the elastic unit 454 in the elastic reset mechanism 450 can also take other structures and shapes. For example, in Figure 17 In this design, weak portions 456 are formed at the connecting portions at both ends of the upper and lower sides of the elastic unit 454, making the elastic unit 454 more easily deformable. Figure 18 In this context, the elastic element 454 is formed into an ellipse. Figure 19 In the middle, the upper edge of the elastic element 454 is arc-shaped, and the lower edge is a thinner straight line. Figure 20 In the middle, the elastic element 454 is formed into a roughly rectangular shape.

[0156] <Fifth Embodiment>

[0157] Figure 21 and 22 A push-button pump 500 according to a fifth embodiment of this application is shown. Unless otherwise described or conflicted, the specific structures described above with respect to the first to fourth embodiments also apply to the fifth embodiment. In the following description, identical structures will not be described in detail again; instead, structures different from those in the first to fourth embodiments will be specifically described.

[0158] like Figure 21 As shown, the fifth embodiment of the press pump 500 includes a press head 510, a toothed sleeve 520, and a cylinder 530. The elastic reset mechanism 550 of the press pump 500 is sleeved on the outside of the cylinder 530. Specifically, in conjunction with... Figure 21 and 22 As can be seen, a protrusion 531 is formed on the outer surface of the cylinder 530, and the upper coil 551 of the spring of the elastic reset mechanism 550 is fixedly supported on the protrusion 531.

[0159] The elastic reset mechanism 550 also includes a spring fixing member 560, which, like in the fourth embodiment, is fixedly connected to the piston rod (not shown in the figure) and can move up and down together with the pressure head 510 and the piston rod fixedly connected to it. A protrusion 561 is also formed on the outer periphery of the spring fixing member 560, and a limiting portion 562 is preferably also provided at the lower part of the spring fixing member 560.

[0160] Longitudinal slots 532 are also formed on the peripheral wall of cylinder 530. The number and size of slots 532 match the protrusions 561 on spring fixing member 560 to allow the protrusions 561 to engage in the slots 532 and extend from the inside to the outside of cylinder 530 so as to engage with the lower spring coil 552 of elastic reset mechanism 550 sleeved on the outside of cylinder 530.

[0161] When the pressure head 510 is pressed down, the spring retaining member 560 also moves downward, thereby stretching the elastic reset mechanism 550. When the pressing force applied to the pressure head 510 is removed, the elastic force of the spring retaining member 560 causes the pressure head 510 to return to its upper ready position.

[0162] <Sixth Embodiment>

[0163] Figure 23 A push-button pump 600 according to a sixth embodiment of this application is shown. Unless otherwise described or conflicted, the specific structures described above with respect to the first to fifth embodiments also apply to the sixth embodiment. In the following description, identical structures will not be described in detail again; instead, structures different from those in the first to fifth embodiments will be specifically described.

[0164] exist Figure 23 The pump 600 of the sixth embodiment shown is specifically a capsule pump, which includes a pressure head 610 and a dental sleeve 620, with a space formed between the pressure head 610 and the dental sleeve 620, in which a capsule 630 is accommodated. Further, an elastic reset mechanism 650 is accommodated within the capsule 630.

[0165] The elastic reset mechanism 650 can be the structure of an elastic reset mechanism as described in any one of the first to fifth embodiments, for example, it can be used with... Figures 11a-11c The elastic reset mechanism 250 of the second embodiment shown has the same structure.

[0166] <Other Implementation Methods>

[0167] The embodiments of this application have been described in detail above. As will be known to those skilled in the art, these embodiments do not constitute a limitation on the scope of this application. Rather, various modifications, variations, and combinations that are obvious to those skilled in the art can be made based on the disclosed structure, which are also within the scope of this application.

[0168] Furthermore, the embodiments described in detail primarily use an emulsion pump as an example. The resilient reset mechanism of this application can also be used in other types of push-button pumps, such as... Figure 24 The foam pump 700 shown Figure 25 The vacuum pump shown is 800, etc.

[0169] In both the foam pump 700 and the vacuum pump 800, an elastic reset mechanism as described in any one of the first to fifth embodiments can be provided. For example, in the exemplary structure shown in the figures, the foam pump 700 and the vacuum pump 800 can be equipped with an elastic reset mechanism as described in any one of the first to fifth embodiments. Figures 11a-11c The elastic reset mechanism 250 shown.

Claims

1. A resilient reset mechanism, said resilient reset mechanism being installed in a press pump and supported between a moving part and a fixed part of the press pump, wherein, The elastic reset mechanism includes an elastic unit, characterized in that the elastic unit is configured and installed such that when the movable member is pressed downward relative to the fixed member, the distance between the upper and lower portions of the elastic unit increases, thereby stretching the elastic unit.

2. The elastic reset mechanism as described in claim 1, characterized in that, The elastic reset mechanism includes an upper spring coil and a lower spring coil, and the elastic unit is connected between the upper spring coil and the lower spring coil.

3. The elastic reset mechanism as described in claim 1 or 2, characterized in that, The elastic reset mechanism includes two or more elastic units.

4. A push-button pump, the push-button pump comprising a movable part and a fixed part, the movable part comprising a pressure head and a piston rod connected below the pressure head, the fixed part comprising a toothed sleeve and a cylinder fixedly connected together, wherein, The piston rod extends into the cylinder, characterized in that the pressing pump is provided with an elastic reset mechanism as described in any one of claims 1 to 3.

5. The push pump as described in claim 4, characterized in that, The upper end of the elastic reset mechanism is supported below the pressure head, and the lower end of the elastic reset mechanism is supported on the top surface of the dental brace.

6. The push pump as described in claim 4 or 5, characterized in that, The elastic reset mechanism includes an upper spring coil and a lower spring coil, and the elastic unit is connected between the upper spring coil and the lower spring coil.

7. The push pump as described in claim 6, characterized in that, At least one of the upper coil and the lower coil of the spring has a notch formed on it.

8. The push pump as described in claim 6, characterized in that, The elastic reset mechanism further includes: The upper lever portion, wherein the lower half of the elastic unit is connected to the upper coil of the spring via the upper lever portion; and The lower lever portion connects the upper half of the elastic element to the lower coil of the spring via the lower lever portion.

9. The push pump as described in claim 8, characterized in that, The upper lever portion and the lower lever portion include at least one of the following structures: The width of at least one of the upper lever portion and the lower lever portion is set to be smaller than the width of the elastic unit; At least one of the upper lever portion and the lower lever portion includes a bent portion; One of the upper lever portion and the lower lever portion is provided with an opening, and the other of the upper lever portion and the lower lever portion extends through the opening; as well as A hinge portion is formed at at least one of the positions between the upper lever portion and the upper coil of the spring, and between the lower lever portion and the lower coil of the spring.

10. The push pump as claimed in claim 4, characterized in that, The press pump includes two or more resilient reset mechanisms.

11. The push pump as claimed in claim 4, characterized in that, A locking part is formed on the inner surface or the outer surface of the cylinder, and the upper end of the elastic reset mechanism is fixedly fitted on the locking part. The lower end of the elastic reset mechanism is fixedly fitted onto the piston rod.

12. The push pump as claimed in claim 11, characterized in that, The press pump also includes a spring fixing member, which is fixedly connected to the piston rod. A protrusion is formed on the outer surface of the spring fixing member, and the lower end of the elastic reset mechanism is engaged with the protrusion.

13. The push pump as claimed in claim 12, characterized in that, The bottom of the spring fixing member is also provided with a limiting part, which prevents the lower end of the elastic reset mechanism from dislodging from the lower end of the spring fixing member.

14. The push pump as claimed in claim 11, characterized in that, The elastic component of the elastic reset mechanism includes multiple elastic units and connecting portions connecting the elastic units.

15. The push pump as claimed in claim 14, characterized in that, The elastic unit includes at least one of the following structures: A weak portion is formed between the upper and lower sides of the elastic element; The upper side of the elastic element is arc-shaped, and the lower side of the elastic element is straight. The elastic unit is at least one of elliptical or rectangular shapes.

16. The push pump according to any one of claims 11 to 15, characterized in that, The locking part is formed on the inner surface of the cylinder, thereby the elastic reset mechanism is disposed inside the cylinder.

17. The push pump as claimed in claim 12, characterized in that, The locking part is formed on the outer surface of the cylinder, the elastic reset mechanism is sleeved on the outside of the cylinder, and a longitudinally extending slot is formed on the peripheral wall of the cylinder. The protrusion engages in the slot and extends from the inside of the cylinder to the outside.

18. The push pump as claimed in claim 4, characterized in that, The press pump is a bladder pump, with a space formed between the press head and the dental brace, and a bladder body installed in the space. The elastic reset mechanism is disposed in the bladder body.

19. The push pump as claimed in claim 4, characterized in that, The press pump is one of an emulsion pump, a foam pump, and a vacuum pump.

Images