New all-plastic pump head assembly

Abstract

Disclosed in the present application is a new all-plastic pump head assembly, comprising a pump body, wherein a resettable pump head is mounted in the pump body; a base cover is mounted on the pump body; an elastic sheet group is provided between the base cover and the pump head; and after the pump head is pressed, the elastic sheet group drives the pump head to move upwards to reset. The elastic sheet group, a piston part, etc. are integrally formed with the pump head or the pump body, such that the number of accessories is greatly reduced, thereby reducing the pressure during production and storage; moreover, the difficulty of assembly can be greatly reduced, and production costs are reduced. In addition, the all-plastic pump head assembly in the present application is of an all-plastic structure, and can be recycled in one go, thereby being environmentally friendly.

Description

A new type of all-plastic pump head Technical Field

[0001] This application relates to a packaging container, and more particularly to a novel all-plastic pump head. Background Technology

[0002] Existing pump heads generally consist of more than a dozen components, including the pump body, pump head, spring, and check valve. The numerous components result in high costs, complex structures, and difficult assembly. Furthermore, the components include metal parts, which are prone to rusting and contaminating the emulsion when immersed in the contents of the bottle for extended periods. Application content

[0003] To overcome the shortcomings of existing technologies, this application provides a novel all-plastic pump head that can greatly reduce assembly difficulty and production costs; furthermore, this application is an all-plastic structure that can be recycled in one go, making it more environmentally friendly.

[0004] To solve the above-mentioned technical problems, this application provides a novel all-plastic pump head, including a pump body, a resettable pump head installed in the pump body, a base cover installed on the pump body, and a spring sheet assembly between the base cover and the pump head. When the pump head is pressed, the spring sheet assembly drives the pump head to move upward and reset.

[0005] The pump head is equipped with a piston section, and the bottom of the pump body is equipped with an inlet pipe, which is connected to the pump head pipeline.

[0006] The spring assembly includes a first spring disposed on the base cover. The first spring has an upwardly inclined structure that moves towards the center. The outer wall of the pump head is provided with a first inclined surface opposite to the inclination direction of the first spring. The end of the first spring abuts against the first inclined surface. When the pump head is pressed, the first inclined surface squeezes the first spring outward. When the pump head is released, the first spring retracts inward to reset and pushes the pump head upward to reset.

[0007] The spring assembly includes a first spring on the base cover and a second spring on the outside of the pump head. The first spring has an upward tilted structure that moves towards the center, and the second spring has an upward tilted structure that moves away from the center. The outer sides of the first and second springs abut against each other. When the pump head is pressed, the first spring extends outward and deforms, and the second spring contracts inward and deforms. When the pump head is released, the first spring contracts inward and resets, and the second spring extends outward and resets, pushing the pump head upward and reset.

[0008] The spring assembly includes a third spring located at the lower end of the pump head. The third spring has a downward tilted structure away from the center. A first insertion hole is provided at the bottom of the pump body. The end of the third spring extends out of the pump body through the first insertion hole. When the pump head is pressed, the third spring extends outward and deforms. When the pump head is released, the third spring retracts inward and resets, pushing the pump head upward and resetting.

[0009] The spring assembly includes a fourth spring located on the outside of the pump head. The fourth spring has a downward tilted structure away from the center, and its end abuts against the upper edge of the base cover. When the pump head is pressed, the fourth spring is opened by the base cover and extends outward to deform. When the pump head is released, the fourth spring retracts inward to reset and pushes the pump head upward to reset.

[0010] The pump body is equipped with a connecting pipe for connecting the pump head and the inlet pipe. The upper end of the connecting pipe is provided with a first outlet. The lower end of the pump head blocks the first outlet. When the pump head is pressed, the first outlet extends into the pump head, so that the outlet channel is connected.

[0011] The pump body is equipped with a connecting pipe for connecting the pump head and the inlet pipe. A positioning post is provided at the bottom of the connecting pipe. The lower end of the positioning post separates the connecting pipe from the inlet pipe, and an inlet channel is formed between the positioning post and the connecting pipe. The lower end of the pump head is inserted into the upper end of the positioning post, and a second outlet is provided at the lower end of the pump head. When the pump head is pressed, the connection point between the positioning post and the connecting pipe is disconnected and moves with the pump head. The second outlet is connected to the inlet pipe through the inlet channel, so that the outlet channel is connected.

[0012] The pump body is equipped with a connecting pipe for connecting the pump head and the inlet pipe. The lower end of the pump head is equipped with a third outlet that is blocked by the first ball. A sealing plate is installed in the connecting pipe below the third outlet. When the pump head is pressed, the connection point between the sealing plate and the connecting pipe is disconnected, so that the outlet channel is connected. The liquid is discharged through the outlet channel and at the same time, it pushes open the first ball.

[0013] The pump body is equipped with a connecting pipe for connecting the pump head and the inlet pipe, and the upper end of the connecting pipe is equipped with a second ball that can be flushed open.

[0014] The upper end of the inlet pipe is equipped with a third ball that can be pushed open upwards, and the lower end of the pump head is equipped with a fourth outlet. The fourth outlet is equipped with a locking part above and below it, and a fourth ball is installed in the locking part to block the fourth outlet. When using it for the first time, pressing the pump head will increase the air pressure in the pump body and push the fourth ball out from the locking part. When using it in subsequent times, pressing the pump head will push the third ball and the fourth ball open in sequence and discharge it from the pump head.

[0015] The pump body is provided with a protrusion for pushing the fourth ball out of the clamping part.

[0016] The spring assembly is equipped with sliding ribs for sliding in conjunction with other accessories.

[0017] The pump body has a protrusion, and the pump head has a blocking part corresponding to the protrusion. When the protrusion and the blocking part are aligned, the pump head cannot be pressed.

[0018] The spring assembly includes a flat hole component with an elliptical hole in the middle. An inclined component is provided inside the pump head. When the inclined component is inserted into the elliptical hole, the elliptical hole deforms to generate elastic force.

[0019] The spring assembly includes several inclined plates arranged in a ring. One end of each inclined plate is connected to the pump body, and the other end of each inclined plate is connected to the surrounding edge. A through part is provided inside the pump head. When the through part is inserted into the surrounding edge, the inclined plate deforms to generate elastic force.

[0020] The edging is provided with a concave-convex structure between two adjacent inclined pieces.

[0021] The through section has a guide arc surface corresponding to the surrounding edge.

[0022] The pump body is equipped with a connecting pipe, and the pump head is equipped with an insert part corresponding to the connecting pipe. The insert part is inserted into the connecting pipe. The upper end of the connecting pipe is equipped with a twelfth spring, and the lower end of the insert part is equipped with a thirteenth spring corresponding to the twelfth spring. The thirteenth spring is installed inside the twelfth spring. When the pump head is pressed, the thirteenth spring expands and deforms the twelfth spring to generate elastic force. At the same time, the thirteenth spring is squeezed inward by the twelfth spring to generate elastic force.

[0023] The outer wall of the pump head is provided with a sliding groove consisting of a limiting groove and a vertical groove. The pump body is provided with a fastener corresponding to the sliding groove, which is embedded in the sliding groove. A limiting structure is provided on the lower side of the limiting groove to restrict the reverse rotation of the pump head.

[0024] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed in the pump body, a base cover for fixing the pump head installed on the pump body, an inlet pipe installed at the bottom of the pump body, the side wall of the pump body having an inclined structure from top to bottom towards the center, and a piston part that can be bent upward at the lower end of the pump head. When the pump head is pressed, the piston part bends upward with the side wall of the pump body and generates elastic force. When the pump head is released, the piston part returns to its original position and pushes the pump head to move upward and reset.

[0025] The pump body is equipped with a connecting pipe for connecting the pump head and the inlet pipe, and the upper end of the connecting pipe is equipped with a second ball that can be flushed open.

[0026] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed inside the pump body, a base cover for fixing the pump head installed on the pump body, an inlet pipe installed at the bottom of the pump body, a connecting pipe for connecting the pump head and the inlet pipe provided inside the pump body, an insert part provided inside the pump head, the insert part being inserted into the connecting pipe, a fifth spring piece provided at the upper end of the connecting pipe, and a second inclined surface from top to bottom towards the center provided in the insert part. When the pump head is pressed, the second inclined surface pushes the fifth spring piece outward and generates elastic force. When the pump head is released, the fifth spring piece retracts inward and resets, pushing the pump head upward and resetting.

[0027] A positioning post is provided at the bottom of the connecting pipe. The lower end of the positioning post separates the connecting pipe from the inlet pipe, forming an inlet channel between the positioning post and the connecting pipe. The lower end of the pump head is inserted into the upper end of the positioning post, and a second outlet is provided at the lower end of the pump head. When the pump head is pressed, the connection point between the positioning post and the connecting pipe is disconnected and moves with the pump head. The second outlet is connected to the inlet pipe through the inlet channel, thus connecting the outlet channel.

[0028] A sealing plate is installed at the lower end of the pump head inside the connecting pipe. Pressing the pump head disconnects the connection point between the sealing plate and the connecting pipe, thus opening the liquid outlet channel.

[0029] The lower end of the pump head is provided with a sixth spring plate, and the bottom of the pump body is provided with a second insertion hole inside the connecting pipe. The end of the sixth spring plate extends out of the pump body through the second insertion hole. When the pump head is pressed, the sixth spring plate moves inward to deform. When the pump head is released, the sixth spring plate unfolds outward to reset and pushes the pump head upward to reset.

[0030] The lower end of the connecting pipe is provided with a first air inlet window. A one-way valve is installed inside the connecting pipe to separate the first air inlet window from the insert part. When the pump head is pressed, the insert part opens the connection point between the one-way valve and the connecting pipe and moves the one-way valve down, so that the first air inlet window is connected to the insert part.

[0031] The upper end of the one-way valve is provided with an extension, and the lower end of the insert is provided with a clamping part. The clamping part clamps the upper end of the extension, and the two adjacent clamping parts and the extension form a first liquid inlet that connects the pump head and the connecting pipe.

[0032] The connecting pipe has a first limiting part located on the upper and lower sides of the first air intake window.

[0033] The pump body has a third inlet at the bottom and a first inlet / outlet at the bottom of the connecting pipe. The third inlet and the first inlet / outlet are connected by a check valve that can be opened or closed. The top of the check valve has a column with a tapered structure whose diameter gradually decreases from bottom to top. The lower end of the insert has a claw that engages with the upper end of the column.

[0034] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed inside the pump body, a base cover for fixing the pump head installed on the pump body, an inlet pipe installed at the bottom of the pump body, a connecting pipe for connecting the pump head and the inlet pipe provided inside the pump body, a third inclined surface provided at the lower end of the connecting pipe, an elastic tube provided inside the pump head, the elastic tube being sleeved outside the connecting pipe, pressing the pump head causes the elastic tube to unfold along the third inclined surface, generating elastic force, releasing the pump head causes the elastic tube to retract and reset, and the pump head to move upward and reset through the third inclined surface.

[0035] The side wall of the connecting tube is provided with a fifth liquid outlet. A sealing plate is provided inside the elastic tube above the connecting tube. Pressing the pump head disconnects the connection point between the sealing plate and the elastic tube, thus connecting the liquid outlet channel.

[0036] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed inside the pump body, a base cover for fixing the pump head installed on the pump body, an inlet pipe installed at the bottom of the pump body, a connecting pipe for connecting the pump head and the inlet pipe provided inside the pump body, an elastic tube provided inside the pump head, the elastic tube being sleeved outside the connecting pipe, and the lower end of the elastic tube abutting against the bottom surface of the pump body, and a slit provided on the side wall of the elastic tube, when the pump head is pressed, the elastic tube bulges outward at the slit and deforms, generating elastic force, when the pump head is released, the elastic tube retracts and resets, and pushes the pump head upward to reset.

[0037] The top surface of the connecting tube is provided with a sixth liquid outlet, which is blocked by the fifth ball. A sealing plate is provided inside the elastic tube above the connecting tube. When the pump head is pressed, the connection point between the sealing plate and the elastic tube is disconnected, so that the liquid outlet channel is connected. The liquid is discharged through the liquid outlet channel and at the same time, it pushes open the fifth ball.

[0038] The lower end of the connecting pipe is provided with a second air inlet window, and the bottom of the pump body is located inside the connecting pipe and is provided with a sixth ball that can be pushed upwards.

[0039] The sealing disc has a columnar structure. After the sealing disc is pushed open by the connecting pipe, it slides up and down inside the elastic tube. When the top surface of the sealing disc abuts against the pump head, the lower end of the sealing disc is still inserted inside the elastic tube.

[0040] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed inside the pump body, a base cover for fixing the pump head installed on the pump body, an inlet pipe installed at the bottom of the pump body, a seventh ball that can be pushed upward inside the pump head, and a seventh spring plate installed inside the pump body for pushing the pump head upward. When the pump head is pressed, the gas inside the pump body pushes open the seventh ball and is discharged from the pump head. At the same time, the seventh spring plate is pressed down and deformed, generating elastic force. When the pump head is released, the seventh spring plate returns to its original position and pushes the pump head upward to reset.

[0041] This application also provides a novel all-plastic pump head, which consists of two parts: a pump body and a pump head. The upper end of the pump body is integrally formed with a base cover for mounting on the bottle mouth. The pump head is provided with an integral spring sheet assembly. After pressing the pump head, the spring sheet assembly drives the pump head to move upward and reset.

[0042] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed in the pump body, a base cover for fixing the pump head on the pump body, an inlet pipe installed at the bottom of the pump body, a connecting pipe for connecting the pump head and the inlet pipe in the pump body, an insert part inside the pump head that is inserted into the connecting pipe, a seventh outlet on the side wall of the connecting pipe, a second inlet on the side wall of the insert part corresponding to the seventh outlet, an eighth spring piece inside the pump body, and an outwardly inclined extension part at the lower end of the pump head that is inserted into the gap between the eighth spring piece and the inner wall of the pump body. When the pump head is pressed, the extension part pushes the eighth spring piece inward and generates elastic force. When the pump head is released, the eighth spring piece resets outward and pushes the pump head upward to reset.

[0043] The lower end of the insert is provided with a barb, and the inside of the connecting tube is provided with a second limiting part. When the pump head is pressed, the lower end of the insert abuts against the top surface of the second limiting part, and pushes the connecting tube and the pump body together. The seventh liquid outlet is aligned with the second liquid inlet. Air in the pump body passes through the seventh liquid outlet and the second liquid inlet and is discharged from the pump head. When the pump head is released, the seventh liquid outlet and the second liquid inlet are misaligned. The contents of the bottle enter the pump body through the inlet tube, the connecting tube and the seventh liquid outlet, and the connecting tube is pulled upward to reset by the barb and the second limiting part.

[0044] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed in the pump body, a vertically movable connecting pipe provided in the pump body, an inlet pipe connected to the bottom of the connecting pipe, a fourth inlet provided in the connecting pipe, an insert part provided in the pump head, the insert part being inserted into the connecting pipe, a valve plate provided at the lower end of the insert part corresponding to the fourth inlet, the valve plate blocking the fourth inlet, a second inlet / outlet provided on the side wall of the connecting pipe, and a fifth inlet provided on the side wall of the insert part, when the second inlet / outlet and the fifth inlet are aligned, the pump body communicates with the outside through the pump head.

[0045] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed in the pump body, a connecting pipe with an internal one-way valve in the pump body, an insert in the pump head, the insert being inserted into the connecting pipe, and a support plate on the outer side of the pump body and the upper end of the pump head. When the pump head is pressed, the support plate deforms to generate elastic force; when the pump head is released, the support plate extends and pushes the pump head to reset.

[0046] The support plate, pump head, and pump body are integrally molded.

[0047] The upper end of the connecting tube is provided with a ninth spring piece, and the outer side of the insertion part is provided with a ninth inclined surface corresponding to the ninth spring piece. When the pump head is pressed, the ninth inclined surface expands the ninth spring piece to generate elastic force.

[0048] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed in the pump body, a connecting pipe with an internal one-way valve in the pump body, an insert in the pump head, the insert being inserted into the connecting pipe, a tenth inclined surface that slopes inward from top to bottom in the pump body, a tenth spring plate corresponding to the tenth inclined surface in the pump head, pressing the pump head causes the tenth spring plate to contract and deform inward along the tenth inclined surface to generate elastic force, releasing the pump head causes the tenth spring plate to extend and push the pump head to reset.

[0049] The upper end of the connecting tube is provided with a ninth spring piece, and the outer side of the insertion part is provided with a ninth inclined surface corresponding to the ninth spring piece. When the pump head is pressed, the ninth inclined surface expands the ninth spring piece to generate elastic force.

[0050] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed in the pump body, a connecting pipe provided in the pump body, the upper end of the connecting pipe being folded back to form a first folded portion, a seventh liquid outlet provided on the lower side of the connecting pipe at the folded portion, when the pump head is pressed, the first folded portion and the connecting pipe come together and deform to generate elastic force, while simultaneously blocking the seventh liquid outlet, when the pump head is released, the first folded portion and the connecting pipe unfold, pushing the pump head to reset.

[0051] The bottom of the pump body is equipped with an inlet pipe, and the part of the inlet pipe that extends into the pump body is a connecting pipe.

[0052] This application also provides a novel all-plastic pump head, including a pump body, a resettable pump head installed in the pump body, a connecting pipe with an internal one-way valve in the pump body, an insert part in the pump head, the insert part being inserted into the connecting pipe, an eleventh spring piece with its upper end folded back in the pump body, an insert cavity in the pump head corresponding to the eleventh spring piece, the eleventh spring piece being inserted into the insert cavity, when the pump head is pressed, the folded part of the eleventh spring piece is squeezed together by the insert cavity to generate elastic force, when the pump head is released, the eleventh spring piece unfolds, pushing the pump head to reset.

[0053] The beneficial effects of this application are as follows: This application has a resettable pump head installed in the pump body, and the pump head is provided with a piston part for venting air from the pump body. An inlet pipe is installed at the bottom of the pump body, and a base cover is installed on the pump body. A spring plate assembly is provided between the base cover and the pump head. After pressing the pump head, the spring plate assembly drives the pump head to move upward and reset. The spring plate assembly, piston part, etc. are integrated with the pump head or pump body, which greatly reduces the number of parts, reduces the pressure of production and storage, and can greatly reduce the difficulty of assembly and reduce production costs. In addition, this application is an all-plastic structure, which can be recycled at one time and is more environmentally friendly. Attached Figure Description

[0054] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0055] Figure 1 is a structural diagram of Embodiment 1; Figure 2 is a structural diagram of Embodiment 2 (one of the three); Figure 3 is a structural diagram of Embodiment 2 (another of the three); Figure 4 is a structural diagram of Embodiment 2 (a third of the three); Figure 5 is a structural diagram of Embodiment 3; Figure 6 is a structural diagram of Embodiment 4 (one of the three); Figure 7 is a structural diagram of Embodiment 4 (another of the three); Figure 8 is a structural diagram of Embodiment 5; Figure 9 is a structural diagram of Embodiment 6; Figure 10 is a structural diagram of Embodiment 7 (one of the three); Figure 11 is a structural diagram of Embodiment 7 (another of the three); Figure 12 is a structural diagram of Embodiment 8; Figure 13 is a structural diagram of Embodiment 9 (one of the three); Figure 14 is a structural diagram of Embodiment 9 (another of the three); Figure 15 is a structural diagram of Embodiment 10 (one of the three). Figure 16 is a structural diagram of Embodiment 11; Figure 17 is a structural diagram of Embodiment 12; Figure 18 is a structural diagram of Embodiment 12; Figure 19 is a structural diagram of Embodiment 12; Figure 20 is a structural diagram of Embodiment 12; Figure 21 is a structural diagram of Embodiment 13; Figure 22 is a structural diagram of Embodiment 14; Figure 23 is a structural diagram of Embodiment 14; Figure 24 is a structural diagram of Embodiment 15; Figure 25 is a structural diagram of Embodiment 15; Figure 26 is a structural diagram of Embodiment 15; Figure 27 is a structural diagram of Embodiment 15; Figure 28 is a structural diagram of Embodiment 15. Figure 29 is a structural diagram of Embodiment 10 (second one); Figure 30 is a structural diagram of Embodiment 10 (third one); Figure 31 is a structural diagram of Embodiment 10 (fourth one); Figure 32 is a structural diagram of Embodiment 16; Figure 33 is a schematic diagram of the anti-accidental pressure structure (first one); Figure 34 is a schematic diagram of the anti-accidental pressure structure (second one); Figure 35 is a schematic diagram of the spring assembly (first one); Figure 36 is a schematic diagram of the spring assembly (second one); Figure 37 is a schematic diagram of the one-way valve; Figure 38 is a structural diagram of Embodiment 17; Figure 39 is a schematic diagram of the pump head of Embodiment 17; Figure 40 is a schematic diagram of the pump body of Embodiment 17; Figure 41 is a structural diagram of Embodiment 18; Figure 42 is a structural diagram of Embodiment 19; Figure 43 is a structural diagram of Embodiment 20; Figure 44 is a structural diagram of Embodiment 21; Figure 45 is a structural diagram of Embodiment 22; Figure 46 is a schematic diagram of the anti-accidental pressure structure (first one); Figure 47 is a schematic diagram of the anti-accidental pressure structure (second one). Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0057] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this application.

[0058] The following describes some embodiments of this application with reference to the accompanying drawings.

[0059] Referring to Figures 1-47, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a piston part 4 for discharging air or contents from the pump body 1 on the pump head 2, an inlet pipe 5 installed at the bottom of the pump body 1, a base cover 3 installed on the pump body 1, and a spring assembly between the base cover 3 and the pump head 2. When the pump head 2 is pressed, the spring assembly drives the pump head 2 to move upward and reset. The spring assembly, piston part, etc., are integral with the pump head or pump body, greatly reducing the number of parts, reducing production and storage pressure, and significantly reducing assembly difficulty and production costs. In addition, this application is an all-plastic structure, which can be recycled at once, making it more environmentally friendly.

[0060] Furthermore, this application can also be applied to flexible packaging bags, requiring only corresponding structural adjustments, which is a routine replacement. Therefore, this application can reduce the number of accessories to a maximum of two, namely the pump body 1 and the pump head 2. The remaining structures are integrally formed with the pump body 1 and the pump head 2 through reasonable design, including air intake, air replenishment, liquid discharge, sealing, etc.

[0061] Example 1: Referring to Figure 1, the spring assembly includes a first spring 6 disposed on the base cover 3. The first spring 6 has an upwardly inclined structure that moves towards the center. The outer side wall of the pump head 2 is provided with a first inclined surface 7 that is opposite to the inclination direction of the first spring 6. The end of the first spring 6 abuts against the first inclined surface 7. When the pump head 2 is pressed, the first inclined surface 7 squeezes the first spring 6 outward. When the pump head 2 is released, the first spring 6 retracts inward to reset and pushes the pump head 2 to move upward to reset.

[0062] The pump body 1 is provided with a connecting pipe 8 for connecting the pump head 2 and the inlet pipe 5. The upper end of the connecting pipe 8 is provided with a first outlet 9. The lower end of the pump head 2 blocks the first outlet 9. When the pump head 2 is pressed, the first outlet 9 extends into the interior of the pump head 2, so that the outlet channel is connected.

[0063] Example 2, referring to Figure 2, the spring assembly includes a first spring 6 disposed on the base cover 3 and a second spring 21 disposed on the outside of the pump head 2. The first spring 6 has an upwardly inclined structure that moves towards the center, and the second spring 21 has an upwardly inclined structure that moves away from the center. The outer sides of the first spring 6 and the second spring 21 abut against each other. When the pump head 2 is pressed, the first spring 6 extends outward and deforms, and the second spring 21 contracts inward and deforms. When the pump head 2 is released, the first spring 6 contracts inward and resets, and the second spring 21 extends outward and resets, pushing the pump head 2 to move upward and reset.

[0064] Referring to Figure 3, the first spring piece 6 is removed from the figure in Figure 2.

[0065] Referring to Figure 4, a pneumatic spring is used to replace the first spring 6 and the second spring 21 (the pneumatic spring is shown as A in Figure 4, which is the prior art).

[0066] Example 3: Referring to Figure 5, the spring assembly includes a third spring 22 disposed at the lower end of the pump head 2. The third spring 22 has a downward inclined structure away from the center. The bottom of the pump body 1 is provided with a first insertion hole. The end of the third spring 22 extends out of the pump body 1 through the first insertion hole. When the pump head 2 is pressed, the third spring 22 extends outward and deforms. When the pump head 2 is released, the third spring 22 retracts inward and resets, and pushes the pump head 2 to move upward and reset.

[0067] Example 4: Referring to Figure 6, the spring assembly includes a fourth spring 23 disposed on the outside of the pump head 2. The fourth spring 23 has a downward inclined structure away from the center, and its end abuts against the upper edge of the base cover 3. When the pump head 2 is pressed, the fourth spring 23 is opened by the base cover 3 and extends outward to generate deformation. When the pump head 2 is released, the fourth spring 23 retracts inward to reset and pushes the pump head 2 to move upward to reset.

[0068] As shown in Figure 7B, the fourth spring 23 can be replaced by a conventional spring.

[0069] Example 5: Referring to Figure 8, the pump body 1 is provided with a connecting pipe 8 for connecting the pump head 2 and the inlet pipe 5. A positioning post 10 is provided at the bottom of the connecting pipe 8. The lower end of the positioning post 10 separates the connecting pipe 8 from the inlet pipe 5, and an inlet channel is formed between the positioning post 10 and the connecting pipe 8. The lower end of the pump head 2 is inserted into the upper end of the positioning post 10, and a second outlet 11 is provided at the lower end of the pump head 2. When the pump head 2 is not pressed, the second outlet 11 is blocked by the upper end of the connecting pipe 8. When the pump head 2 is pressed, the connection point between the positioning post 10 and the connecting pipe 8 is disconnected and moves with the pump head 2. The second outlet 11 is connected to the inlet pipe 5 through the inlet channel, so that the outlet channel is connected.

[0070] Example 6: Referring to Figure 9, the pump body 1 is provided with a connecting pipe 8 for connecting the pump head 2 and the liquid inlet pipe 5. The lower end of the pump head 2 is provided with a third liquid outlet 13 blocked by the first ball 12. A sealing plate 14 is provided in the connecting pipe 8 below the third liquid outlet 13. When the pump head 2 is pressed, the connection point between the sealing plate 14 and the connecting pipe 8 is disconnected, so that the liquid outlet channel is connected. The liquid is discharged through the liquid outlet channel, which at the same time flushes open the first ball 12.

[0071] Example 7: Referring to Figures 10-11, the pump body 1 is provided with a connecting pipe 8 for connecting the pump head 2 and the liquid inlet pipe 5. The upper end of the connecting pipe 8 is provided with a second ball 15 that can be blown open. In Figure 11, the first spring 6 has a downward inclined structure that moves towards the center.

[0072] Example 8: Referring to Figure 12, the upper end of the inlet pipe 5 is provided with a third bead 16 that can be pushed open upwards, and the lower end of the pump head 2 is provided with a fourth outlet 18. The fourth outlet 18 is provided with a clamping part 17 above and below it. A fourth bead 19 for blocking the fourth outlet 18 is installed in the clamping part 17. When used for the first time, the pump head 2 is pressed, and the air pressure in the pump body 1 increases, pushing the fourth bead 19 out of the clamping part 17. When used in subsequent times, the pump head 2 is pressed, and the liquid in the bottle pushes open the third bead 16 and the fourth bead 19 in sequence and is discharged from the pump head 2.

[0073] The pump body 1 is provided with a protrusion 20 for pushing the fourth ball 19 out of the clamping part 17.

[0074] The spring assembly is provided with sliding ribs for sliding in conjunction with other accessories. When the spring assembly is deformed by being squeezed by other accessories, the sliding ribs abut against other accessories, which can reduce the contact area between the spring assembly and other accessories, thereby reducing friction. Pressing and rebounding will be easier and more natural, and the service life of this product can also be extended (this structure applies to all embodiments of spring reset in this application).

[0075] Example 9: Referring to Figures 13-14, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a base cover 3 for fixing the pump head 2 installed on the pump body 1, an inlet pipe 5 installed at the bottom of the pump body 1, and the side wall of the pump body 1 having an inclined structure that converges towards the center from top to bottom. The lower end of the pump head 2 is provided with an upwardly bendable piston part 4. When the pump head 2 is pressed, the piston part 4 bends upward along with the side wall of the pump body 1 and generates elastic force. When the pump head 2 is released, the piston part 4 returns to its original position and pushes the pump head 2 to move upward and reset.

[0076] The pump body 1 is provided with a connecting pipe 8 for connecting the pump head 2 and the liquid inlet pipe 5. The upper end of the connecting pipe 8 is provided with a second ball 15 that can be flushed open.

[0077] The difference between Figure 13 and Figure 14 is that the piston part 4 in Figure 13 is in a straight state, while the piston part 4 in Figure 14 is in a bent state. When pressing the pump head 2, the bent piston part 4 is easier to press.

[0078] Referring to Figures 15-20, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a base cover 3 for fixing the pump head 2 installed on the pump body 1, an inlet pipe 5 installed at the bottom of the pump body 1, a connecting pipe 8 for connecting the pump head 2 and the inlet pipe 5 inside the pump body 1, an insertion part 25 inside the pump head 2, the insertion part 25 being inserted into the connecting pipe 8, a fifth spring piece 24 being provided at the upper end of the connecting pipe 8, and the insertion part 25 being provided with a second inclined surface 26 that moves from top to bottom towards the center. When the pump head 2 is pressed, the second inclined surface 26 pushes the fifth spring piece 24 outward and generates elastic force. When the pump head 2 is released, the fifth spring piece 24 retracts inward and resets, pushing the pump head 2 upward and resetting.

[0079] Example 10: Referring to Figure 15, a positioning post 10 is provided at the bottom of the connecting pipe 8. The lower end of the positioning post 10 separates the connecting pipe 8 from the inlet pipe 5, and an inlet channel is formed between the positioning post 10 and the connecting pipe 8. The lower end of the pump head 2 is inserted into the upper end of the positioning post 10, and a second outlet 11 is provided at the lower end of the pump head 2. When the pump head 2 is pressed, the connection point between the positioning post 10 and the connecting pipe 8 is disconnected and moves with the pump head 2. The second outlet 11 is connected to the inlet pipe 5 through the inlet channel, so that the outlet channel is connected.

[0080] Example 11: Referring to Figure 16, a sealing plate 14 is provided at the lower end of the pump head 2 inside the connecting pipe 8. When the pump head 2 is pressed, the connection point between the sealing plate 14 and the connecting pipe 8 is disconnected, so that the liquid outlet channel is connected.

[0081] Example 12: Referring to Figure 17, a sixth spring plate 27 is provided at the lower end of the pump head 2. A second insertion hole is provided at the bottom of the pump body 1 inside the connecting pipe 8. The end of the sixth spring plate 27 extends out of the pump body 1 through the second insertion hole. When the pump head 2 is pressed, the sixth spring plate 27 moves inward and deforms. When the pump head 2 is released, the sixth spring plate 27 unfolds outward and resets, pushing the pump head 2 to move upward and reset.

[0082] Referring to Figure 18, the difference from Figure 17 is that the second inclined surface 26 and the fifth spring piece 24 have been removed.

[0083] Referring to Figure 19, the difference from Figure 17 is that the structure of the sixth spring 27 has been removed.

[0084] In addition, a one-way valve structure can be added, as shown in C of Figure 19. The one-way valve can be installed in any reasonable position in the liquid outlet channel (the liquid outlet channel includes the entire channel through which the contents of the bottle enter through the liquid inlet pipe 5 and are finally discharged from the pump head 2).

[0085] Referring to Figure 20, a first air inlet window 34 is provided at the lower end of the connecting pipe 8. A one-way valve 35 is installed inside the connecting pipe 8 to separate the first air inlet window 34 from the insert part 25. When the pump head 2 is pressed, the insert part 25 opens the connection point between the one-way valve 35 and the connecting pipe 8, and drives the one-way valve 35 to move downward, so that the first air inlet window 34 is connected to the insert part 25. When the pump head 2 is released, a negative pressure is formed inside the pump body 1, and the contents of the bottle enter from the liquid inlet pipe 5, pushing the one-way valve 35 to move upward and reset. The contents enter the pump body 1 through the first air inlet window 34. When the pump head 2 is pressed again, the one-way valve 35 moves downward, so that the first air inlet window 34 is connected to the insert part 25. The contents enter the pump head 2 through the first air inlet window 34 and are discharged.

[0086] Referring to Figure 30, the upper end of the one-way valve 35 is provided with an extension 42, and the lower end of the insert 25 is provided with a clamping part 44. The clamping part 44 clamps the upper end of the extension 42. Two adjacent clamping parts 44 and the extension 42 form a first liquid inlet that connects the pump head 2 and the connecting pipe 8. When the pump head 2 moves up and down, the clamping part 44 drives the one-way valve 35 to move up and down through the extension 42, thereby more smoothly controlling the flow of contents.

[0087] The connecting pipe 8 is provided with first limiting parts 43 on the upper and lower sides of the first air intake window 34, thereby limiting the range of motion of the one-way valve 35. When the one-way valve 35 abuts against one of the first limiting parts 43, the clamping part 44 and the extension part 42 are in a state of relative movement. When the pump head 2 moves in the opposite direction, the clamping part 44 and the extension part 42 can drive the one-way valve 35 to move through friction until the one-way valve 35 abuts against the other first limiting part 43, at which point the clamping part 44 and the extension part 42 are in a state of relative movement again.

[0088] Referring to Figure 31, the first limiting part 43 can be located on the lower side of the first air intake window 34. When the pump head 2 is pressed, the one-way valve 35 abuts against the first limiting part 43, and the clamping part 44 and the extension part 42 move relative to each other until the pump head 2 is pressed to the limit. After the pump head 2 is released, the pump head 2 drives the one-way valve 35 to move upward. When the pump head 2 is pressed to the limit again, the one-way valve 35 just abuts against the first limiting part 43.

[0089] During manufacturing, the one-way valve 35 is integrally formed with the pump body 1 through the first limiting part 43 on the upper side, which can further reduce the number of accessories of this product. When used for the first time, press the pump head 2, and the insertion part 25 will break the connection point between the one-way valve 35 and the first limiting part 43.

[0090] Referring to Figure 29, the second inclined surface 26 can be replaced by a rib 41. After pressing the pump head 2, the rib 41 descends, thereby pushing the fifth spring piece 24 outward and causing the fifth spring piece 24 to generate elastic force. In addition, the rib 41 can also be a complete convex ring or a broken convex ring (i.e., multiple protrusions surround to form a convex ring), etc., which can push the fifth spring piece 24 outward.

[0091] Example 13: Referring to Figure 21, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a base cover 3 for fixing the pump head 2 installed on the pump body 1, an inlet pipe 5 installed at the bottom of the pump body 1, a connecting pipe 8 for connecting the pump head 2 and the inlet pipe 5 provided inside the pump body 1, a third inclined surface 28 provided at the lower end of the connecting pipe 8, an elastic tube 38 provided inside the pump head 2, the elastic tube 38 being fitted outside the connecting pipe 8, pressing the pump head 2 causes the elastic tube 38 to unfold along the third inclined surface 28, generating elastic force, releasing the pump head 2 causes the elastic tube 38 to retract and reset, and the pump head 2 moves upward and reset through the third inclined surface 28.

[0092] The side wall of the connecting pipe 8 is provided with a fifth liquid outlet 29. A sealing plate 14 is provided inside the elastic tube 38 above the connecting pipe 8. When the pump head 2 is pressed, the connection point between the sealing plate 14 and the elastic tube 38 is disconnected, so that the liquid outlet channel is connected.

[0093] Example 14: Referring to Figure 22, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a base cover 3 for fixing the pump head 2 installed on the pump body 1, an inlet pipe 5 installed at the bottom of the pump body 1, a connecting pipe 8 for connecting the pump head 2 and the inlet pipe 5 inside the pump body 1, an elastic tube 38 inside the pump head 2, the elastic tube 38 being fitted outside the connecting pipe 8, and the lower end of the elastic tube 38 abutting against the bottom surface of the pump body 1, and a slit 31 provided on the side wall of the elastic tube 38. When the pump head 2 is pressed, the elastic tube 38 bulges outward at the slit 31 (the slit 31 can be one or multiple slits), generating elasticity. When the pump head 2 is released, the elastic tube 38 retracts and resets, pushing the pump head 2 upward to reset.

[0094] The top surface of the connecting pipe 8 is provided with a sixth liquid outlet 30 blocked by the fifth ball 39. A sealing plate 14 is provided inside the elastic tube 38 above the connecting pipe 8. When the pump head 2 is pressed, the connection point between the sealing plate 14 and the elastic tube 38 is disconnected, so that the liquid outlet channel is connected. The liquid is discharged through the liquid outlet channel and at the same time, the fifth ball 39 is flushed open.

[0095] The lower end of the connecting pipe 8 is provided with a second air inlet window 32. The bottom of the pump body 1 is located inside the connecting pipe 8 and is provided with a sixth bead 33 that can be pushed upwards (refer to Figure 23, which combines the features of embodiments 13 and 14). When the pump head 2 is pressed, the air in the pump body 1 enters the connecting pipe 8 through the second air inlet window 32, pushes open the fifth bead 39, and is discharged from the pump head 2 through the elastic tube 38. When the pump head 2 is released, the pump head 2 resets, creating a negative pressure inside the pump body 1. The contents of the bottle enter the liquid inlet pipe 5, push open the sixth bead 33, and enter the pump body 1 through the second air inlet window 32. When the pump head 2 is pressed again, the contents of the pump body 1 enter the connecting pipe 8 through the second air inlet window 32, push open the fifth bead 39, and are discharged from the pump head 2 through the elastic tube 38.

[0096] Furthermore, in some embodiments of this application, such as embodiments 1-5, it is also applicable to pressurizing the air in the pump body 1 into the bottle and directly discharging the contents of the bottle through the liquid inlet pipe 5, the connecting pipe 8 and the pump head 2 (the air replenishment structure is existing technology and will not be described in detail).

[0097] Referring to Figures 22 and 23, the sealing sheet 14 has a columnar structure. After the sealing sheet 14 is pushed open by the connecting pipe 8, the sealing sheet 14 slides up and down in the elastic tube 38. When the top surface of the sealing sheet 14 abuts against the pump head 2, the lower end of the sealing sheet 14 is still inserted in the elastic tube 38, thereby preventing the fifth ball 39 from passing over the sealing sheet 14 and falling out of the pump head 2.

[0098] Example 15: Referring to Figures 24-28, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a base cover 3 for fixing the pump head 2 installed on the pump body 1, an inlet pipe 5 installed at the bottom of the pump body 1, a seventh ball 36 that can be pushed upwards installed inside the pump head 2, and a seventh spring plate 37 installed inside the pump body 1 for pushing the pump head 2 upwards. When the pump head 2 is pressed, the gas inside the pump body 1 pushes open the seventh ball 36 and is discharged from the pump head 2. At the same time, the seventh spring plate 37 is pressed down and deformed, generating elastic force. When the pump head 2 is released, the seventh spring plate 37 returns to its original position and pushes the pump head 2 upwards to reset.

[0099] Referring to Figure 24, the seventh spring 37 is symmetrically arranged on both sides inside the pump body 1.

[0100] Referring to Figure 25, the pump body 1 is provided with a resettable outlet pipe 40, which replaces the seventh spring 37. When the pump head 2 is pressed, the lower end of the outlet pipe 40 is bent, thereby blocking the outlet pipe 40 at the bend. The air in the pump body 1 is forced out of the seventh ball 36 and discharged from the pump head 2. After the pump head 2 is released, the outlet pipe 40 returns to its original position, and the pump head 2 is pushed up, creating a negative pressure in the pump body 1. The contents of the bottle enter the pump body 1 through the inlet pipe 5. Pressing the pump head 2 again will dispense the liquid.

[0101] Referring to Figure 26, the liquid outlet pipe 40 is located below the pump head 2, and the seventh spring plate 37 is also provided. In this embodiment, the seventh spring plate 37 plays a major reset role, and the liquid outlet pipe 40 plays an auxiliary role. When the liquid outlet pipe 40 is bent, it will not be completely blocked, thus avoiding the situation where liquid cannot be discharged when the pump head 2 is pressed.

[0102] Referring to Figures 27 and 28, the seventh spring 37 can be a spiral structure, which generates greater elastic force compared to a single-sided structure.

[0103] The base cover 3 is provided with a threaded part for fixing to the bottle mouth. The base cover 3 and the bottle mouth are fixed by the thread. In addition, the base cover 3 and the bottle mouth can also be fixed by common methods such as buckles.

[0104] In this application, the spring assembly can be of various shapes, such as flat or curved.

[0105] A novel all-plastic pump head is disclosed, comprising a pump body 1 and a pump head 2. The upper end of the pump body 1 is integrally formed with a base cover 3 for mounting on a bottle neck. The pump head 2 is provided with an integral spring assembly. When the pump head 2 is pressed, the spring assembly drives the pump head 2 to move upward and reset. In this design, other conventional accessories, such as the inlet pipe 5 and various balls, are directly purchased. Therefore, the overall number of accessories for this product needs to include all the accessories that need to be purchased. However, for the enterprise, only the pump body 1 and the pump head 2 need to be produced by mold making (the same applies to other embodiments).

[0106] Example 16: Referring to Figure 32, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a base cover 3 for fixing the pump head 2 on the pump body 1, an inlet pipe 5 installed at the bottom of the pump body 1, a connecting pipe 8 for connecting the pump head 2 and the inlet pipe 5 inside the pump body 1, an insertion part 25 inside the pump head 2, the insertion part 25 being inserted into the connecting pipe 8, and a seventh outlet 47 on the side wall of the connecting pipe 8. The side wall of the mounting part 25 is provided with a second inlet 48 corresponding to the seventh liquid outlet 47. An eighth spring 45 is provided inside the pump body 1. An outwardly inclined extension 46 is provided at the lower end of the pump head 2. The extension 46 is inserted into the gap between the eighth spring 45 and the inner wall of the pump body 1. When the pump head 2 is pressed, the extension 46 pushes the eighth spring 45 inward and generates elastic force. When the pump head 2 is released, the eighth spring 45 returns to its original position and pushes the pump head 2 to move upward and return to its original position.

[0107] The lower end of the insert 25 is provided with a barb 48, and the inside of the connecting pipe 8 is provided with a second limiting part 49. When the pump head 2 is pressed, the lower end of the insert 25 abuts against the top surface of the second limiting part 49, and the connecting pipe 8 is pushed against the pump body 1. The seventh liquid outlet 47 is aligned with the second liquid inlet 48. The air in the pump body 1 passes through the seventh liquid outlet 47 and the second liquid inlet 48 and is discharged from the pump head 2. When the pump head 2 is released, the seventh liquid outlet 47 and the second liquid inlet 48 are misaligned. The contents of the bottle enter the pump body 1 through the liquid inlet pipe 5, the connecting pipe 8 and the seventh liquid outlet 47, and the connecting pipe 8 is pulled upward to reset by the barb 48 and the second limiting part 49.

[0108] In this application, an anti-accidental pressing structure is provided between the pump body 1 and the pump head 2. For example, the pump body 1 has a protrusion, and the pump head 2 has a corresponding blocking part. When the protrusion and the blocking part are aligned, the pump head 2 cannot be pressed. Generally, it needs to be set to the aligned state before leaving the factory to prevent accidental pressing due to collision during transportation. When the user uses it, the pump head 2 can be rotated to make the protrusion and the blocking part misaligned, so that it can be pressed normally. In addition, the pump head 2 and the pump body 1 or the base cover 3 are provided with corresponding markings to facilitate the user to confirm whether it is in the anti-accidental pressing state when using it. It is more convenient for users to carry it when going out, such as when traveling.

[0109] In addition, it can be configured with multiple protrusions, with gaps formed between adjacent blocking parts. When the gaps are aligned with the protrusions, normal pressing is possible. Alternatively, as shown in Figure 34, the protrusion structure 51 and the slot structure 52 can work together to press normally, or other conventional structures. The protrusion structure 51 can be set on the pump body 1 or on the pump head 2. Correspondingly, the slot structure 52 can be set in the corresponding position.

[0110] Referring to Figure 35, the spring assembly includes a flat hole component 53, with an elliptical hole 54 in the middle of the flat hole component 53. An inclined surface component 55 is provided inside the pump head 2. When the inclined surface component 55 is inserted into the elliptical hole 54, the elliptical hole 54 deforms to generate elastic force.

[0111] Referring to Figure 36, the spring assembly includes several inclined plates 56 arranged in a ring. One end of each inclined plate 56 is connected to the pump body 1, and the other end of each inclined plate 56 is connected to the surrounding edge 57. A through part 58 is provided inside the pump head 2. When the through part 58 is inserted into the surrounding edge 57, the inclined plate 56 deforms to generate elastic force.

[0112] The edging 57 is provided with a concave-convex structure 59 between two adjacent inclined pieces 56. It can be a concave structure, an convex structure, or a polygonal structure. When the through part 58 is inserted into the edging 57, the concave-convex structure 59 deforms outward, so that the edging 57 fits the through part 58, further increasing the deformation of the edging 57, thereby generating greater elasticity. The through part 58 is provided with a guide arc surface 60 corresponding to the edging 57, which further improves the smoothness of pressing the through part 58.

[0113] Referring to Figure 37, the pump body 1 has a third inlet 61 at its bottom, and the connecting pipe 8 has a first inlet / outlet 62 at its lower end. The third inlet 61 and the first inlet / outlet 62 are connected by a one-way valve 35, which opens or closes the connection. The top surface of the one-way valve 35 has a column 63, and the upper end of the column 63 has a tapered structure 65 with a gradually decreasing diameter from bottom to top (in this embodiment, the tapered structure has two sections, with a smaller diameter at the top and a larger diameter at the bottom). The lower end of the insert 25 has a claw 64, which engages with the upper end of the column 63. Initially, The one-way valve 35 is connected to the connecting pipe 8 through several connection points. When the pump head 2 is pressed, the insert part 25 pushes the column 63 downward, thereby disconnecting all the connection points between the one-way valve 35 and the connecting pipe 8. At the same time, the claw 64 grips the larger diameter part of the column 63 downward, that is, grips the lower conical structure, increasing the gripping force. The one-way valve 35 blocks the third liquid inlet 61, and the first liquid inlet / outlet 62 is opened. Air in the pump body 1 enters the connecting pipe 8 through the first liquid inlet / outlet 62, and then... The material enters the insertion part 25 through the gap between the claws 64 and finally exits from the pump head 2. Releasing the pump head 2 causes it to reset upwards via the spring assembly. The claws 64 then grip the column 63 and move it upwards, opening the third inlet 61 and sealing the first inlet / outlet 62. A negative pressure is created inside the pump body 1, allowing the material in the container to enter the pump body 1 through the third inlet 61. Pressing the pump head 2 again allows liquid to be dispensed. When the pump head 2 returns to its highest position, the claws 64 change from gripping the lower conical structure to gripping the upper conical structure. At this time, the gripping force of the claw 64 and the column 63 is relatively small. When the material in the container finishes moving into the pump body 1, due to the inclined structure of the conical structure, the claw 64 resets and pushes the conical structure downward. In addition, the weight of the one-way valve 35 causes the one-way valve 35 to move downward, thereby re-sealing the third liquid inlet 61. This prevents the material in the pump body 1 from flowing back into the container if the one-way valve 35 remains in an upward-suspended state for a long time and does not block the third liquid inlet 61 after the external force is removed and the pump head 2 is not pressed again.

[0114] Example 17: Referring to Figures 38-40, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a vertically movable connecting pipe 8 inside the pump body 1, an inlet pipe 5 connected to the bottom of the connecting pipe 8, a fourth inlet port 72 inside the connecting pipe 8, an insert part 25 inside the pump head 2, the insert part 25 being inserted into the connecting pipe 8, a valve plate 66 corresponding to the fourth inlet port 72 at the lower end of the insert part 25, the valve plate 66 blocking the fourth inlet port 72, a second inlet / outlet port 67 on the side wall of the connecting pipe 8, and a fifth inlet port 68 on the side wall of the insert part 25. When the second inlet / outlet port 67 is connected to the fourth inlet port 72, the pump head 2 has a second inlet / outlet port 67. When the fifth inlet 68 is aligned, the pump body 1 is connected to the outside through the pump head 2. In the initial state, the connecting pipe 8 is connected to the pump body 1 through a connection point (or a connecting strip or other connection structure). The second inlet / outlet 67 is offset from the fifth inlet 68. The valve plate 66 is inserted into the fourth inlet 72. The valve plate 66 has a deformation notch 71 in the middle. When the valve plate 66 and the fourth inlet 72 are relatively displaced, the fourth inlet 72 is opened, and the valve plate 66 deforms, causing the valve plate 66 and the fourth inlet 72 to return to their original positions. Pressing the pump head 2 disconnects all the connection points between the connecting pipe 8 and the pump body 1, pushing the pump head 2 to open. When the connecting pipe 8 moves downward, the inlet pipe 5 bends and generates elasticity, aligning the second inlet / outlet 67 with the fifth inlet 68. The valve plate 66 and the fourth inlet 72 undergo relative displacement, opening the fourth inlet 72. An annular groove 69 is provided on the upper side of the fourth inlet 72 on the connecting pipe 8. An insert ring 70 is provided on the insert part 25 corresponding to the annular groove 69, and is inserted into the annular groove 69, separating the pump body 1 from the fourth inlet 72. At this time, air inside the pump body 1 is discharged from the pump head 2 through the second inlet / outlet 67 and the fifth inlet 68. After releasing the pump head 2, the inlet pipe 5 straightens and returns to its original position. The connecting pipe 8 is moved upward, thereby pushing the pump head 2 to reset. The second inlet / outlet 67 is offset from the fifth inlet 68. The insert ring 70 is withdrawn from the annular groove 69, so that the fourth inlet 72 is connected to the pump body 1. The material in the container enters the pump body 1 through the inlet pipe 5, from the fourth inlet 72 and the second inlet / outlet 67. Pressing again will dispense liquid. When the material in the container has finished moving into the pump body 1, the valve plate 66 is reset, pushing the connecting pipe 8 to move, thereby resealing the fourth inlet 72. This is also to prevent the fourth inlet 72 from remaining open after the external force is removed, causing the material in the pump body 1 to flow back into the container.

[0115] Example 18: Referring to Figure 41, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a connecting pipe 8 with an internal one-way valve 35 inside the pump body 1, an insert part 25 inside the pump head 2, the insert part 25 being inserted into the connecting pipe 8, and a support plate 73 provided on the outer side of the pump body 1 and the upper end of the pump head 2. When the pump head 2 is pressed, the support plate 73 deforms to generate elastic force. When the pump head 2 is released, the support plate 73 extends and pushes the pump head 2 to reset.

[0116] The support plate 73, pump head 2 and pump body 1 are integrally formed and are opened together during mold opening. They are connected in the middle by the support plate 73. After they are made, they can be assembled. In this way, only one injection mold is needed for the entire pump head.

[0117] Furthermore, the support plate 73, pump head 2, and pump body 1 can be separate structures, connected by conventional fixing methods such as snap-fit ​​and fastening.

[0118] The upper end of the connecting pipe 8 is provided with a ninth spring piece 74, and the outer side of the insertion part 25 is provided with a ninth inclined surface 75 corresponding to the ninth spring piece 74. When the pump head 2 is pressed, the ninth inclined surface 75 expands the ninth spring piece 74 to generate elastic force.

[0119] Example 19: Referring to Figure 42, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a connecting pipe 8 with an internal one-way valve 35 inside the pump body 1, an insert part 25 inside the pump head 2, the insert part 25 being inserted into the connecting pipe 8, a tenth inclined surface 76 sloping inward from top to bottom inside the pump body 1, and a tenth spring piece 77 corresponding to the tenth inclined surface 76 in the pump head 2. When the pump head 2 is pressed, the tenth spring piece 77 contracts and deforms inward along the tenth inclined surface 76 to generate elastic force. When the pump head 2 is released, the tenth spring piece 77 extends and pushes the pump head 2 to reset.

[0120] The upper end of the connecting pipe 8 is provided with a ninth spring piece 74, and the outer side of the insertion part 25 is provided with a ninth inclined surface 75 corresponding to the ninth spring piece 74. When the pump head 2 is pressed, the ninth inclined surface 75 expands the ninth spring piece 74 to generate elastic force.

[0121] Example 20: Referring to Figure 43, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, and a connecting pipe 8 provided inside the pump body 1. The upper end of the connecting pipe 8 is folded back to form a first folded portion 78. A seventh liquid outlet is provided on the lower side of the folded portion of the connecting pipe 8 (even if the pump head 2 is not pressed, the folded portion cannot allow liquid to pass through smoothly and can only be discharged from the seventh liquid outlet). When the pump head 2 is pressed, the first folded portion 78 and the connecting pipe 8 come together and deform to generate elastic force, while simultaneously blocking the seventh liquid outlet. When the pump head 2 is released, the first folded portion 78 and the connecting pipe 8 unfold, pushing the pump head 2 to reset.

[0122] The bottom of the pump body 1 is equipped with an inlet pipe 5, and the part of the inlet pipe 5 that extends into the pump body 1 is the connecting pipe 8.

[0123] In Figure 43, the first fold-back section 78 and the connecting pipe 8 are only used to show the fold-back structure. In reality, the channel between the first fold-back section 78 and the connecting pipe 8 will be blocked due to the fold-back, similar to the principle that water cannot flow out after a water pipe is folded back.

[0124] Example 21: Referring to Figure 44, a novel all-plastic pump head includes a pump body 1, a resettable pump head 2 installed inside the pump body 1, a connecting pipe 8 with an internal one-way valve 35 inside the pump body 1, an insert part 25 inside the pump head 2, the insert part 25 being inserted into the connecting pipe 8, an eleventh spring piece 79 with its upper end folded back inside the pump body 1, an insert cavity 80 corresponding to the eleventh spring piece 79 on the pump head 2, the eleventh spring piece 79 being inserted into the insert cavity 80, when the pump head 2 is pressed, the folded portion of the eleventh spring piece 79 is squeezed together by the insert cavity 80 to generate elastic force, when the pump head 2 is released, the eleventh spring piece 79 unfolds, pushing the pump head 2 to reset.

[0125] In this embodiment, the eleventh spring piece 79 is folded back in a direction perpendicular to the direction of the view.

[0126] In this product, all the inclined surfaces can be partially set, as shown in 41 of Figure 29, 26 of Figures 30 and 31, 25 of Figure 38, and 75 of Figure 42. In addition, all the inclined surfaces can also be set along the entire length, as shown in 7 of Figures 1, 8, 9, 10, 11, and 12, 26 of Figures 15, 16, 17, 19, and 20, and 28 of Figures 21 and 23. With this structure, the spring sheet and the inclined surface are always fully or end-fitted. Compared with the partially set structure, it can generate greater elasticity, and the reset effect and stability are also better.

[0127] In this application, the liquid outlet channel, one-way valve, spring plate assembly, etc., of the various embodiments can be used interchangeably if the structure and principle are reasonable.

[0128] In this product, the timing of deformation and reset of each part is determined by the magnitude of the elastic force. When the part with the greater elastic force resets, the part with the lesser elastic force will reset. For some product structures, all deformations can occur and reset simultaneously. This can be set according to actual needs and is considered existing technology.

[0129] Example 22: Referring to Figure 45, a connecting pipe 8 is provided inside the pump body 1. An insert part 25 is provided on the pump head 2 corresponding to the connecting pipe 8. The insert part 25 is inserted into the connecting pipe 8. A twelfth spring piece 81 is provided at the upper end of the connecting pipe 8. A thirteenth spring piece 82 is provided at the lower end of the insert part 25 corresponding to the twelfth spring piece 81. The thirteenth spring piece 82 is installed inside the twelfth spring piece 81. When the pump head 2 is pressed, the thirteenth spring piece 82 expands and deforms the twelfth spring piece 81 to generate elastic force. At the same time, the thirteenth spring piece 82 is squeezed inward by the twelfth spring piece 81 to generate elastic force.

[0130] Furthermore, the outer diameter of the connecting pipe 8 and the insertion part 25 can be set to be the same. The thirteenth spring 82 is provided with a chamfered structure to facilitate insertion into the twelfth spring 81. When the pump head 2 is pressed, the thirteenth spring 82 and the twelfth spring 81 will undergo corresponding deformation along the chamfered structure.

[0131] Furthermore, the installation positions of the insert 25 and the connecting pipe 8 are interchanged. When the pump head 2 is pressed, the twelfth spring 81 expands and deforms the thirteenth spring 82 to generate elastic force. At the same time, the twelfth spring 81 is squeezed inward by the thirteenth spring 82 to generate elastic force.

[0132] Referring to Figures 46 and 47, furthermore, the outer wall of the pump head 2 is provided with a sliding groove 83 composed of a limiting groove and a vertical groove. The pump body 1 is provided with a fastener 84 corresponding to the sliding groove. The fastener 84 is embedded in the sliding groove 83. When the fastener 84 is located in the limiting groove, the pump head 2 cannot be pressed down. By rotating the pump head 2 to align the fastener 84 with the vertical groove, it can be pressed down normally, thus preventing accidental pressure.

[0133] In this embodiment, the limiting groove and the vertical groove are vertical structures, that is, the sliding groove 83 is an "L" shaped groove. In addition, the included angle between the limiting groove and the vertical groove can also be an acute angle, an obtuse angle, or other structures.

[0134] Furthermore, a limiting structure 85 is provided on the lower side of the limiting groove to restrict the reverse rotation of the pump head 2. The side of the limiting structure 85 away from the vertical groove is an inclined structure, and the side closer to the vertical groove is a vertical structure. When the pump head 2 is rotated so that the latch 84 slides into the vertical groove, it can slide smoothly along the inclined structure. When the pump head 2 is rotated in the reverse direction, the vertical structure plays a role in preventing reverse rotation. When it is necessary to reset the pump head 2 to prevent accidental pressure, the pump head 2 needs to be pressed slightly so that the latch 84 is higher than the limiting structure 85 before the pump head 2 can be rotated in the reverse direction normally.

Claims

1. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... A base cover (3) is installed on the pump body (1). A spring sheet assembly is provided between the base cover (3) and the pump head (2). After pressing the pump head (2), the spring sheet assembly drives the pump head (2) to move upward and reset.

2. The novel all-plastic pump head according to claim 1, characterized in that... The pump head (2) is provided with a piston part (4), and the bottom of the pump body (1) is equipped with an inlet pipe (5), which is connected to the pump head (2).

3. The novel all-plastic pump head according to claim 2, characterized in that... The spring assembly includes a first spring (6) disposed on the base cover (3). The first spring (6) has an upward inclined structure that moves towards the center. The outer side wall of the pump head (2) is provided with a first inclined surface (7) that is opposite to the inclined direction of the first spring (6). The end of the first spring (6) abuts against the first inclined surface (7). When the pump head (2) is pressed, the first inclined surface (7) squeezes the first spring (6) outward. When the pump head (2) is released, the first spring (6) retracts inward to reset and pushes the pump head (2) to move upward to reset.

4. The novel all-plastic pump head according to claim 2, characterized in that... The spring assembly includes a first spring (6) disposed on the base cover (3) and a second spring (21) disposed on the outside of the pump head (2). The first spring (6) has an upward inclined structure that moves towards the center, and the second spring (21) has an upward inclined structure that moves away from the center. The outer sides of the first spring (6) and the second spring (21) abut against each other. When the pump head (2) is pressed, the first spring (6) extends outward and deforms, and the second spring (21) contracts inward and deforms. When the pump head (2) is released, the first spring (6) contracts inward and resets, and the second spring (21) extends outward and resets, and pushes the pump head (2) to move upward and reset.

5. The novel all-plastic pump head according to claim 2, characterized in that... The spring assembly includes a third spring (22) disposed at the lower end of the pump head (2). The third spring (22) has a downward inclined structure away from the center. The bottom of the pump body (1) is provided with a first insertion hole. The end of the third spring (22) extends out of the pump body (1) through the first insertion hole. When the pump head (2) is pressed, the third spring (22) extends outward and deforms. When the pump head (2) is released, the third spring (22) retracts inward and resets, and pushes the pump head (2) to move upward and reset.

6. The novel all-plastic pump head according to claim 2, characterized in that... The spring assembly includes a fourth spring (23) disposed on the outside of the pump head (2). The fourth spring (23) has a downward inclined structure away from the center and its end abuts against the upper edge of the base cover (3). When the pump head (2) is pressed, the fourth spring (23) is opened by the base cover (3) and extends outward to generate deformation. When the pump head (2) is released, the fourth spring (23) retracts inward to reset and pushes the pump head (2) to move upward to reset.

7. The novel all-plastic pump head according to any one of claims 3-6, characterized in that... The pump body (1) is provided with a connecting pipe (8) for connecting the pump head (2) and the inlet pipe (5). The upper end of the connecting pipe (8) is provided with a first outlet (9). The lower end of the pump head (2) blocks the first outlet (9). When the pump head (2) is pressed, the first outlet (9) extends into the pump head (2) so that the outlet channel is connected.

8. The novel all-plastic pump head according to any one of claims 3-6, characterized in that... The pump body (1) is provided with a connecting pipe (8) for connecting the pump head (2) and the inlet pipe (5). A positioning post (10) is provided at the bottom of the connecting pipe (8). The lower end of the positioning post (10) separates the connecting pipe (8) from the inlet pipe (5). An inlet channel is formed between the positioning post (10) and the connecting pipe (8). The lower end of the pump head (2) is inserted into the upper end of the positioning post (10). The lower end of the pump head (2) is provided with a second outlet (11). When the pump head (2) is pressed, the connection point between the positioning post (10) and the connecting pipe (8) is disconnected and moves with the pump head (2). The second outlet (11) is connected to the inlet pipe (5) through the inlet channel, so that the outlet channel is connected.

9. The novel all-plastic pump head according to any one of claims 3-6, characterized in that... The pump body (1) is provided with a connecting pipe (8) for connecting the pump head (2) and the inlet pipe (5). The lower end of the pump head (2) is provided with a third outlet (13) blocked by the first ball (12). A sealing plate (14) is provided in the connecting pipe (8) below the third outlet (13). When the pump head (2) is pressed, the connection point between the sealing plate (14) and the connecting pipe (8) is disconnected, so that the outlet channel is connected. The liquid is discharged through the outlet channel and the first ball (12) is flushed open.

10. The novel all-plastic pump head according to any one of claims 3-6, characterized in that... The pump body (1) is provided with a connecting pipe (8) for connecting the pump head (2) and the inlet pipe (5), and the upper end of the connecting pipe (8) is provided with a second ball (15) that can be flushed open.

11. The novel all-plastic pump head according to any one of claims 3-6, characterized in that... The upper end of the inlet pipe (5) is provided with a third ball (16) that can be pushed open upwards, and the lower end of the pump head (2) is provided with a fourth outlet (18). The fourth outlet (18) is provided with a clamping part (17) above and below it. The clamping part (17) is equipped with a fourth ball (19) for blocking the fourth outlet (18). When used for the first time, the pump head (2) is pressed, and the air pressure in the pump body (1) increases, which pushes the fourth ball (19) out of the clamping part (17). When used in subsequent times, the pump head (2) is pressed, and the liquid in the bottle pushes open the third ball (16) and the fourth ball (19) in sequence and is discharged from the pump head (2).

12. The novel all-plastic pump head according to claim 11, characterized in that... The pump body (1) is provided with a protrusion (20) for pushing the fourth ball (19) out of the clamping part (17).

13. The novel all-plastic pump head according to claim 1, characterized in that... The spring assembly is provided with sliding ribs for sliding in conjunction with other accessories.

14. The novel all-plastic pump head according to claim 1, characterized in that... The pump body (1) is provided with a protrusion (50), and the pump head (2) is provided with a blocking part corresponding to the protrusion (50). When the protrusion (50) is aligned with the blocking part, the pump head (2) cannot be pressed.

15. The novel all-plastic pump head according to claim 1, characterized in that... The spring assembly includes a flat hole component (53), and an elliptical hole (54) is provided in the middle of the flat hole component (53). An inclined surface component (55) is provided inside the pump head (2). When the inclined surface component (55) is inserted into the elliptical hole (54), the elliptical hole (54) deforms to generate elastic force.

16. The novel all-plastic pump head according to claim 1, characterized in that... The spring assembly includes several inclined plates (56) arranged in a ring. One end of each inclined plate (56) is connected to the pump body (1), and the other end of each inclined plate (56) is connected to the surrounding edge (57). A through part (58) is provided inside the pump head (2). When the through part (58) is inserted into the surrounding edge (57), the inclined plate (56) deforms to generate elastic force.

17. The novel all-plastic pump head according to claim 16, characterized in that... The perimeter (57) is provided with a concave-convex structure (59) between two adjacent inclined pieces (56).

18. The novel all-plastic pump head according to claim 16 or 17, characterized in that... The through part (58) is provided with a guide arc surface (60) corresponding to the surrounding edge (57).

19. The novel all-plastic pump head according to claim 1, characterized in that... The pump body (1) is provided with a connecting pipe (8), and the pump head (2) is provided with an insert (25) corresponding to the connecting pipe (8). The insert (25) is inserted into the connecting pipe (8). The upper end of the connecting pipe (8) is provided with a twelfth spring (81), and the lower end of the insert (25) is provided with a thirteenth spring (82) corresponding to the twelfth spring (81). The thirteenth spring (82) is installed inside the twelfth spring (81). When the pump head (2) is pressed, the thirteenth spring (82) expands and deforms the twelfth spring (81) to generate elastic force. At the same time, the thirteenth spring (82) is squeezed inward by the twelfth spring (81) to generate elastic force.

20. The novel all-plastic pump head according to claim 1, characterized in that... The outer wall of the pump head (2) is provided with a sliding groove (83) consisting of a limiting groove and a vertical groove. The pump body (1) is provided with a buckle (84) corresponding to the sliding groove. The buckle (84) is embedded in the sliding groove (83). The lower side of the limiting groove is provided with a limiting structure (85) to restrict the reverse rotation of the pump head (2).

21. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is equipped with a base cover (3) for fixing the pump head (2). The bottom of the pump body (1) is equipped with an inlet pipe (5). The side wall of the pump body (1) is inclined from top to bottom towards the center. The lower end of the pump head (2) is provided with a piston part (4) that can be bent upward. When the pump head (2) is pressed, the piston part (4) bends upward with the side wall of the pump body (1) and generates elastic force. When the pump head (2) is released, the piston part (4) returns to its original position and pushes the pump head (2) to move upward and reset.

22. The novel all-plastic pump head according to claim 21, characterized in that... The pump body (1) is provided with a connecting pipe (8) for connecting the pump head (2) and the inlet pipe (5), and the upper end of the connecting pipe (8) is provided with a second ball (15) that can be flushed open.

23. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is equipped with a base cover (3) for fixing the pump head (2). The bottom of the pump body (1) is equipped with an inlet pipe (5). The pump body (1) is provided with a connecting pipe (8) for connecting the pump head (2) and the inlet pipe (5). The pump head (2) is provided with an insert part (25). The insert part (25) is inserted into the connecting pipe (8). The upper end of the connecting pipe (8) is provided with a fifth spring piece (24). The insert part (25) is provided with a second inclined surface (26) that moves from top to bottom toward the center. When the pump head (2) is pressed, the second inclined surface (26) pushes the fifth spring piece (24) outward and generates elastic force. When the pump head (2) is released, the fifth spring piece (24) retracts inward and resets, and pushes the pump head (2) upward to reset.

24. The novel all-plastic pump head according to claim 23, characterized in that... The bottom of the connecting pipe (8) is provided with a positioning post (10). The lower end of the positioning post (10) separates the connecting pipe (8) from the inlet pipe (5). An inlet channel is formed between the positioning post (10) and the connecting pipe (8). The lower end of the pump head (2) is inserted into the upper end of the positioning post (10), and the lower end of the pump head (2) is provided with a second outlet (11). When the pump head (2) is pressed, the connection point between the positioning post (10) and the connecting pipe (8) is disconnected and moves with the pump head (2). The second outlet (11) is connected to the inlet pipe (5) through the inlet channel, so that the outlet channel is connected.

25. The novel all-plastic pump head according to claim 23, characterized in that... A sealing plate (14) is provided at the lower end of the pump head (2) inside the connecting pipe (8). When the pump head (2) is pressed, the connection point between the sealing plate (14) and the connecting pipe (8) is disconnected, so that the liquid outlet channel is connected.

26. The novel all-plastic pump head according to claim 23, characterized in that... The lower end of the pump head (2) is provided with a sixth spring plate (27). The bottom of the pump body (1) is located inside the connecting pipe (8) and a second insertion hole is provided. The end of the sixth spring plate (27) extends out of the pump body (1) through the second insertion hole. When the pump head (2) is pressed, the sixth spring plate (27) moves inward and deforms. When the pump head (2) is released, the sixth spring plate (27) unfolds outward and resets, and pushes the pump head (2) to move upward and reset.

27. The novel all-plastic pump head according to claim 23, characterized in that... The lower end of the connecting pipe (8) is provided with a first air inlet window (34). A one-way valve (35) is installed inside the connecting pipe (8) to separate the first air inlet window (34) from the insert part (25). When the pump head (2) is pressed, the insert part (25) opens the connection point between the one-way valve (35) and the connecting pipe (8) and drives the one-way valve (35) to move down, so that the first air inlet window (34) is connected to the insert part (25).

28. The novel all-plastic pump head according to claim 27, characterized in that... The upper end of the one-way valve (35) is provided with an extension (42), and the lower end of the insert (25) is provided with a clamping part (44). The clamping part (44) clamps the upper end of the extension (42), and the two adjacent clamping parts (44) and the extension (42) form a first liquid inlet that connects the pump head (2) and the connecting pipe (8).

29. The novel all-plastic pump head according to claim 28, characterized in that... The connecting pipe (8) is provided with a first limiting part (43) on the upper and lower sides of the first air inlet window (34).

30. The novel all-plastic pump head according to claim 23, characterized in that... The pump body (1) is provided with a third inlet (61) at the bottom and a first inlet / outlet (62) at the lower end of the connecting pipe (8). The third inlet (61) and the first inlet / outlet (62) are connected by a one-way valve (35) which opens or closes. A column (63) is provided on the top surface of the one-way valve (35). The upper end of the column (63) has a tapered structure with a gradually decreasing diameter from bottom to top. A claw (64) is provided at the lower end of the insert part (25). The claw (64) is engaged with the upper end of the column (63).

31. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is equipped with a base cover (3) for fixing the pump head (2). The bottom of the pump body (1) is equipped with an inlet pipe (5). The pump body (1) is provided with a connecting pipe (8) for connecting the pump head (2) and the inlet pipe (5). The lower end of the connecting pipe (8) is provided with a third inclined surface (28). The pump head (2) is provided with an elastic tube (38). The elastic tube (38) is fitted outside the connecting pipe (8). When the pump head (2) is pressed, the elastic tube (38) unfolds along the third inclined surface (28) to generate elastic force. When the pump head (2) is released, the elastic tube (38) retracts and resets, and the pump head (2) moves upward and resets through the third inclined surface (28).

32. The novel all-plastic pump head according to claim 31, characterized in that... The side wall of the connecting pipe (8) is provided with a fifth liquid outlet (29). A sealing plate (14) is provided inside the elastic tube (38) above the connecting pipe (8). When the pump head (2) is pressed, the connection point between the sealing plate (14) and the elastic tube (38) is disconnected, so that the liquid outlet channel is connected.

33. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is equipped with a base cover (3) for fixing the pump head (2). The bottom of the pump body (1) is equipped with an inlet pipe (5). The pump body (1) is provided with a connecting pipe (8) for connecting the pump head (2) and the inlet pipe (5). The pump head (2) is provided with an elastic tube (38). The elastic tube (38) is fitted outside the connecting pipe (8), and the lower end of the elastic tube (38) abuts against the bottom surface of the pump body (1). The side wall of the elastic tube (38) is provided with a slit (31). When the pump head (2) is pressed, the elastic tube (38) protrudes outward at the slit (31) and generates elastic force. When the pump head (2) is released, the elastic tube (38) retracts and resets, and pushes the pump head (2) to move upward and reset.

34. The novel all-plastic pump head according to claim 33, characterized in that... The top surface of the connecting pipe (8) is provided with a sixth liquid outlet (30) blocked by the fifth ball (39). A sealing plate (14) is provided inside the elastic tube (38) above the connecting pipe (8). When the pump head (2) is pressed, the connection point between the sealing plate (14) and the elastic tube (38) is disconnected, so that the liquid outlet channel is connected. The liquid is discharged through the liquid outlet channel and the fifth ball (39) is flushed open.

35. The novel all-plastic pump head according to claim 34, characterized in that... The lower end of the connecting pipe (8) is provided with a second air inlet window (32), and the bottom of the pump body (1) is located inside the connecting pipe (8) and is provided with a sixth ball (33) that can be pushed upward.

36. The novel all-plastic pump head according to claim 34, characterized in that... The sealing sheet (14) has a columnar structure. After the sealing sheet (14) is pushed open by the connecting pipe (8), the sealing sheet (14) slides up and down in the elastic tube (38). When the top surface of the sealing sheet (14) abuts against the pump head (2), the lower end of the sealing sheet (14) is still inserted in the elastic tube (38).

37. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is equipped with a base cover (3) for fixing the pump head (2). The bottom of the pump body (1) is equipped with an inlet pipe (5). The pump head (2) is equipped with a seventh ball (36) that can be pushed upward. The pump body (1) is equipped with a seventh spring plate (37) for pushing the pump head (2) upward. When the pump head (2) is pressed, the gas in the pump body (1) pushes the seventh ball (36) open and is discharged from the pump head (2). At the same time, the seventh spring plate (37) is pressed down and deformed, generating elastic force. When the pump head (2) is released, the seventh spring plate (37) returns to its original state and pushes the pump head (2) to move upward and reset.

38. A novel all-plastic pump head, characterized in that... The all-plastic pump head consists of two parts: a pump body (1) and a pump head (2). The upper end of the pump body (1) is integrally formed with a base cover (3) for mounting on the bottle mouth. The pump head (2) is provided with an integral spring sheet assembly. After pressing the pump head (2), the spring sheet assembly drives the pump head (2) to move upward and reset.

39. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is provided with a base cover (3) for fixing the pump head (2). An inlet pipe (5) is installed at the bottom of the pump body (1). A connecting pipe (8) for connecting the pump head (2) and the inlet pipe (5) is provided inside the pump body (1). An insert part (25) is provided inside the pump head (2). The insert part (25) is inserted into the connecting pipe (8). A seventh outlet (47) is provided on the side wall of the connecting pipe (8). The side wall of the insert part (25) corresponds to the seventh outlet (47). A second liquid inlet (48) is provided. An eighth spring (45) is provided inside the pump body (1). An outwardly inclined extension (46) is provided at the lower end of the pump head (2). The extension (46) is inserted into the gap between the eighth spring (45) and the inner wall of the pump body (1). When the pump head (2) is pressed, the extension (46) pushes the eighth spring (45) inward and generates elastic force. When the pump head (2) is released, the eighth spring (45) returns to its original position and pushes the pump head (2) to move upward and return to its original position.

40. The novel all-plastic pump head according to claim 39, characterized in that... The lower end of the insert (25) is provided with a barb (48), and the inside of the connecting tube (8) is provided with a second limiting part (49). When the pump head (2) is pressed, the lower end of the insert (25) abuts against the top surface of the second limiting part (49), and pushes the connecting tube (8) and the pump body (1) together. The seventh liquid outlet (47) is aligned with the second liquid inlet (48). The air in the pump body (1) passes through the seventh liquid outlet (47) and the second liquid inlet (48) and is discharged from the pump head (2). When the pump head (2) is released, the seventh liquid outlet (47) and the second liquid inlet (48) are misaligned. The contents of the bottle enter the pump body (1) through the liquid inlet tube (5), the connecting tube (8) and the seventh liquid outlet (47), and the connecting tube (8) is pulled upward by the barb (48) and the second limiting part (49) to reset.

41. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is provided with a vertically movable connecting pipe (8). The bottom of the connecting pipe (8) is connected to an inlet pipe (5). The connecting pipe (8) is provided with a fourth inlet port (72). The pump head (2) is provided with an insert part (25). The insert part (25) is inserted into the connecting pipe (8). The lower end of the insert part (25) is provided with a valve plate (66) corresponding to the fourth inlet port (72). The valve plate (66) blocks the fourth inlet port (72). The side wall of the connecting pipe (8) is provided with a second inlet / outlet port (67). The side wall of the insert part (25) is provided with a fifth inlet port (68). When the second inlet / outlet port (67) is aligned with the fifth inlet port (68), the pump body (1) is connected to the outside through the pump head (2).

42. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is provided with a connecting pipe (8) containing a one-way valve (35). The pump head (2) is provided with an insert (25) which is inserted into the connecting pipe (8). A support plate (73) is provided on the outer side of the pump body (1) and the upper end of the pump head (2). When the pump head (2) is pressed, the support plate (73) deforms and generates elastic force. When the pump head (2) is released, the support plate (73) extends and pushes the pump head (2) to reset.

43. The novel all-plastic pump head according to claim 42, characterized in that... The support plate (73), pump head (2) and pump body (1) are integrally formed.

44. The novel all-plastic pump head according to claim 42, characterized in that... The upper end of the connecting tube (8) is provided with a ninth spring piece (74), and the outer side of the insert part (25) is provided with a ninth inclined surface (75) corresponding to the ninth spring piece (74). When the pump head (2) is pressed, the ninth inclined surface (75) expands the ninth spring piece (74) to generate elastic force.

45. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is provided with a connecting pipe (8) with a one-way valve (35) inside. The pump head (2) is provided with an insert (25) inserted into the connecting pipe (8). The pump body (1) is provided with a tenth inclined surface (76) that slopes inward from top to bottom. The pump head (2) is provided with a tenth spring plate (77) corresponding to the tenth inclined surface (76). When the pump head (2) is pressed, the tenth spring plate (77) contracts and deforms inward along the tenth inclined surface (76) to generate elastic force. When the pump head (2) is released, the tenth spring plate (77) extends and pushes the pump head (2) to reset.

46. ​​The novel all-plastic pump head according to claim 45, characterized in that... The upper end of the connecting tube (8) is provided with a ninth spring piece (74), and the outer side of the insert part (25) is provided with a ninth inclined surface (75) corresponding to the ninth spring piece (74). When the pump head (2) is pressed, the ninth inclined surface (75) expands the ninth spring piece (74) to generate elastic force.

47. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is provided with a connecting pipe (8). The upper end of the connecting pipe (8) is folded back to form a first fold (78). The connecting pipe (8) is provided with a seventh liquid outlet on the lower side of the fold. When the pump head (2) is pressed, the first fold (78) and the connecting pipe (8) come together and deform to generate elastic force, while blocking the seventh liquid outlet. When the pump head (2) is released, the first fold (78) and the connecting pipe (8) unfold, pushing the pump head (2) to reset.

48. The novel all-plastic pump head according to claim 47, characterized in that... The bottom of the pump body (1) is equipped with an inlet pipe (5), and the part of the inlet pipe (5) that extends into the pump body (1) is the connecting pipe (8).

49. A novel all-plastic pump head, comprising a pump body (1), wherein a resettable pump head (2) is installed within the pump body (1), characterized in that... The pump body (1) is provided with a connecting pipe (8) with an internal one-way valve (35). The pump head (2) is provided with an insert (25) which is inserted into the connecting pipe (8). The pump body (1) is provided with an eleventh spring piece (79) with its upper end folded back. The pump head (2) is provided with an insert cavity (80) corresponding to the eleventh spring piece (79). The eleventh spring piece (79) is inserted into the insert cavity (80). When the pump head (2) is pressed, the folded part of the eleventh spring piece (79) is squeezed together by the insert cavity (80) to generate elastic force. When the pump head (2) is released, the eleventh spring piece (79) unfolds and pushes the pump head (2) to reset.

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