All-plastic atomizing pump
By introducing annular limiting grooves into the all-plastic spray pump, the deformation of the elastic cylinder is limited, and the problem of excessive deformation of the elastic sleeve is solved, and the normal operation and stable spraying function of the spray pump are realized.
Patent Information
- Application Number
- CN202421724935.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-19
AI Technical Summary
In existing all-plastic spray pumps, the elastic sleeve is prone to excessive deformation and cause jamming and failure during use.
A fully plastic spray pump is designed, using annular limiting grooves to limit the deformation of the elastic cylinder to prevent excessive deformation and jamming. The spray pump includes a head assembly, a lower case, an elastic body and an elastic cylinder. The deformation of the elastic cylinder is restricted through an annular limiting groove to ensure that it does not deform excessively during compression.
It effectively prevents excessive deformation and jamming of the elastic cylinder, ensures that the spray pump can maintain normal working state during use, and achieves a stable jet function.
Smart Images
Figure CN222970076U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spray pumps, and particularly relates to a fully plastic spray pump. Background Art
[0002] A spray pump is a tool for atomizing the liquid in a bottled liquid, and has good applications in the cosmetics industry, agriculture and daily necessities. The spray pump is a consumable. In order to facilitate the recycling of the spray pump, people are currently promoting the use of fully plastic recyclable spray pumps. A spring is one of the essential components in a spray pump. In some existing fully plastic spray pumps, the metal spring can be directly replaced with an elastic sleeve. However, the elastic sleeve is prone to excessive deformation and jamming during use, resulting in the failure of the elastic force. Summary of the Utility Model
[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a fully plastic spray pump, which can solve the problem that the elastic sleeve is prone to jamming.
[0004] A fully plastic spray pump according to an embodiment of the first aspect of the utility model includes: a pressing head assembly, a lower housing, an elastic body and an elastic cylinder. The pressing head assembly includes a sliding assembly and a piston member. The sliding assembly has a fluid passage therein, and a feed port communicating with the fluid passage is provided at the lower part of the sliding assembly. The piston member is slidably disposed in the sliding assembly. The lower housing is provided with an upwardly opening mounting groove and a one-way suction port communicating with the outside. The sliding assembly is slidably connected to the mounting groove, and the piston member and the mounting groove enclose a pump suction cavity. The one-way suction port can limit the material in the pump suction cavity from flowing outwards. The top of the elastic body abuts against the sliding assembly, and the bottom abuts against the lower housing. The elastic body can drive the sliding assembly to slide upwards. An annular limiting groove with a downward opening is provided in the circumferential direction of the sliding assembly of the elastic cylinder. The elastic cylinder is installed in the annular limiting groove, and the bottom of the elastic cylinder abuts against the piston member, and the top abuts against the bottom wall of the annular limiting groove. The elastic cylinder can drive the piston member to block the feed port, and the annular limiting groove can limit the excessive deformation of the elastic cylinder.
[0005] A fully plastic spray pump according to an embodiment of the present utility model has at least the following beneficial effects: When pressing the head assembly, the sliding assembly can drive the piston member to move downward, compressing the pump suction cavity. Since the one-way suction port restricts the material therein from flowing outwards, the material in the pump suction cavity can only drive the piston member to slide upwards and compress the elastic cylinder. At this time, the piston member can open the feed port, and the material can enter the fluid passage so that it can be ejected outwards. Due to the provision of the annular limiting groove, when the elastic cylinder is compressed, it is limited by the annular limiting groove and will not be deformed excessively and jammed, so as to continue to maintain normal operation. After spraying, the pressure in the pump suction cavity drops, and the elastic cylinder can drive the piston member to slide downward to re-seal the feed port. At this time, the elastic body can drive the sliding assembly to slide upwards, and the pump suction cavity forms a negative pressure to suck the material in, so as to realize the pump suction and spraying function.
[0006] According to some embodiments of the present utility model, the sliding assembly includes a sliding pipe fitting and a plunger. The plunger is inserted into the bottom of the sliding pipe fitting, and there is a gap between the plunger and the sliding pipe fitting. The gap is the feed port. The sliding pipe fitting passes through the piston member, and the annular limiting groove is provided on the circumferential direction of the sliding pipe fitting. The piston member can abut against the plunger and seal the feed port.
[0007] According to some embodiments of the present utility model, the plunger includes a plugging portion and a first positioning portion. The first positioning portion is provided at the bottom end of the plugging portion. The plugging portion can be plugged into the sliding pipe fitting, and the first positioning portion extends outwards so that the piston member can abut against the first positioning portion.
[0008] According to some embodiments of the present utility model, the plugging portion has a first annular clamping portion, and a second annular clamping portion is provided on the inner side wall of the sliding pipe fitting. The first annular clamping portion can be clamped with the second annular clamping portion.
[0009] According to some embodiments of the present utility model, the elastic cylinder includes an annular portion and a plurality of protruding portions. The protruding portions are provided at the end of the annular portion and are arranged at intervals around the annular portion.
[0010] According to some embodiments of the present utility model, a positioning member is installed on the circumferential direction of the sliding pipe fitting. The positioning member can cooperate with the elastic body for positioning, and the positioning member can abut against the top of the elastic body.
[0011] According to some embodiments of the present utility model, the elastic body includes a positioning cylinder and an elastically deformable cylinder. The positioning cylinder is provided at the top of the elastically deformable cylinder. The positioning member includes a sleeve and an annular limiting portion. The annular limiting portion is provided at the top of the sleeve. The sliding pipe fitting passes through the sleeve, the sleeve passes through the positioning cylinder, and the annular limiting portion abuts against the top of the positioning cylinder.
[0012] According to some embodiments of the present utility model, a plurality of ventilation grooves are provided at the bottom end of the elastomer.
[0013] According to some embodiments of the present utility model, the elastomer includes a positioning cylinder and an elastic deformation cylinder. The elastic deformation cylinder includes a deformation part and an annular positioning part. The upper end of the deformation part is connected to the lower end of the positioning cylinder, the lower end of the deformation part is connected to the annular positioning part, the bottom of the annular positioning part abuts against the lower housing, and the thickness of the deformation part is less than the thickness of the positioning cylinder and the thickness of the annular positioning part.
[0014] According to some embodiments of the present utility model, the pressing head assembly further includes a pressing head, the pressing head is connected to the sliding assembly, and the pressing head is provided with a spraying port, and the spraying port is communicated with the fluid channel.
[0015] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:
[0017] Figure 1 is a cross-sectional view of some embodiments of the present utility model;
[0018] Figure 2 is Figure 1 an exploded view of
[0019] Figure 3 is a schematic structural view of the elastomer;
[0020] Figure 4 is a schematic structural view of the elastic cylinder.
[0021] Reference numerals:
[0022] Pressing head assembly 100, sliding assembly 110, fluid channel 111, feed port 112, annular limiting groove 113, sliding pipe fitting 114, second annular clamping portion 1141, plunger 115, inserting portion 1151, first annular clamping portion 1151a, first positioning portion 1152, positioning member 116, sleeve 1161, annular limiting portion 1162, piston member 120, pressing head 130, spraying port 131;
[0023] Lower housing 200, pump suction cavity 210, one-way suction port 220;
[0024] Elastomer 300, positioning cylinder 310, elastic deformation cylinder 320, deformation part 321, annular positioning part 322, ventilation groove 330;
[0025] Elastic cylinder 400, annular portion 410, and convex portion 420. Specific embodiments
[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.
[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.
[0028] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0029] Refer to Figures 1 to 2, a fully plastic spray pump according to an embodiment of the first aspect of the present utility model, comprising a push head assembly 100, a lower housing 200, an elastomer 300 and an elastic cylinder 400. The push head assembly 100 includes a sliding assembly 110 and a piston member 120. The sliding assembly 110 has a fluid passage 111 therein, and a feed port 112 communicating with the fluid passage 111 is provided at the lower part of the sliding assembly 110. The piston member 120 is slidably disposed in the sliding assembly 110. The lower housing 200 is provided with an upwardly opening mounting groove and a one-way suction port 220 communicating with the outside. The sliding assembly 110 is slidably connected to the mounting groove, and the piston member 120 and the mounting groove enclose a pump suction cavity 210. The one-way suction port 220 can restrict the material in the pump suction cavity 210 from flowing outwards. The top of the elastomer 300 abuts against the sliding assembly 110, and the bottom abuts against the lower housing 200. The elastomer 300 can drive the sliding assembly 110 to slide upwards. An annular limiting groove 113 with a downward opening is provided in the circumferential direction of the elastic cylinder 400 of the sliding assembly 110. The elastic cylinder 400 is installed in the annular limiting groove 113, and the bottom of the elastic cylinder 400 abuts against the piston member 120, and the top abuts against the bottom wall of the annular limiting groove 113. The elastic cylinder 400 can drive the piston member 120 to block the feed port 112, and the annular limiting groove 113 can restrict the excessive deformation of the elastic cylinder 400. When the push head assembly 100 is pressed, the sliding assembly 110 can drive the piston member 120 to move downwards, compressing the pump suction cavity 210. Since the one-way suction port 220 restricts the material therein from flowing outwards, the material in the pump suction cavity 210 can only drive the piston member 120 to slide upwards and compress the elastic cylinder 400. At this time, the piston member 120 can open the feed port 112, and the material can enter the fluid passage 111 so that it can be ejected outwards. Due to the provision of the annular limiting groove 113, when the elastic cylinder 400 is compressed, it is limited by the annular limiting groove 113 and will not be excessively deformed and jammed, so as to keep it working normally. After ejection, the pressure in the pump suction cavity 210 drops, and the elastic cylinder 400 can drive the piston member 120 to slide downwards to re-block the feed port 112. At this time, the elastomer 300 can drive the sliding assembly 110 to slide upwards, and the pump suction cavity 210 forms a negative pressure to suck the material in, so as to realize the pump suction and spray function.
[0030] Specifically, both the elastomer 300 and the elastic cylinder 400 can be made of elastic colloids, and the pressing head assembly 100 and the lower housing 200 can both be made of plastic materials for easy recycling. The lower housing 200 can be used to connect with the bottle body. The one-way suction port 220 can be connected to a pipeline and extend into the bottle body to suck materials. A one-way valve can be provided at the one-way suction port 220 so that the materials can only enter the pump suction cavity 210 and cannot flow out. The sliding assembly 110 can be arranged to pass through the piston member 120. The piston member 120 and the installation groove enclose the pump suction cavity 210. The top of the piston member 120 has an elastic cylinder 400. The elastic cylinder 400 drives the piston member 120 downward and blocks the feed port 112. When the pressure in the pump suction cavity 210 increases, it will drive the piston member 120 to compress the elastic cylinder 400. Under the limitation of the annular limiting groove 113, the elastic cylinder 400 will not be excessively deformed. After the piston member 120 slides upward relative to the sliding assembly 110, the feed port 112 can be opened so that the materials can enter the fluid passage 111 to achieve spraying. The elastomer 300 can drive the sliding assembly 110 to reset upward and pump the materials into the pump suction cavity 210. The deformation of the elastic cylinder 400 can be restricted by the annular limiting groove 113, making it not easy to get stuck and enabling stable operation.
[0031] Referring to Figures 1 to 2 , in some embodiments of the present invention, the sliding assembly 110 includes a sliding pipe fitting 114 and a plunger 115. The plunger 115 is inserted into the bottom of the sliding pipe fitting 114, and there is a gap between the plunger 115 and the sliding pipe fitting 114, and the gap is the feed port 112. The sliding pipe fitting 114 is arranged to pass through the piston member 120. The annular limiting groove 113 is arranged on the circumference of the sliding pipe fitting 114. The piston member 120 can abut against the plunger 115 and block the feed port 112. With the above structure, the elastic cylinder 400 can be installed first, then the piston member 120 can be installed, and finally the plunger 115 can be inserted, which is convenient for assembly.
[0032] Specifically, the sliding pipe fitting 114 has a hollow fluid passage 111 inside. The plunger 115 can be inserted from the bottom of the sliding pipe fitting 114. After insertion, there is a gap between the plunger 115 and the sliding pipe fitting 114, and the gap communicates the fluid passage 111 and the pump suction cavity 210, which is the feed port 112. The piston member 120 can be sleeved on the outer wall of the sliding pipe fitting 114, and the piston member 120 can slide up and down along the sliding pipe fitting 114. An annular limiting groove 113 is provided on the sliding pipe fitting 114 above the piston member 120. The elastic cylinder 400 can drive the piston member 120 to slide downward until it abuts against the plunger 115 and block the gap, that is, block the feed port 112. With the above structure, the elastic cylinder 400 can be installed first, then the piston member 120 can be installed, and finally the plunger 115 can be inserted, which is relatively convenient for assembly.
[0033] Referring to Figures 1 to 2, in some embodiments of the present utility model, the plunger 115 includes a plugging portion 1151 and a first positioning portion 1152. The first positioning portion 1152 is provided at the bottom end of the plugging portion 1151. The plugging portion 1151 can be plugged into the sliding pipe fitting 114. The first positioning portion 1152 extends outward so that the piston member 120 can abut against the first positioning portion 1152, facilitating the piston member 120 to block the feed port 112.
[0034] Specifically, the plugging portion 1151 can be inserted into the pipe fitting, which is convenient for plugging and assembly. The first positioning portion 1152 can be set as a disc shape, which is convenient for taking and operating. The first positioning portion 1152 does not abut against the end of the sliding pipe fitting 114, but there is a gap, which is the feed port 112. The piston member 120 abuts against the first positioning portion 1152 to block the feed port 112. It can be understood that a groove is provided on the side wall of the plugging portion 1151 so that the feed port 112 can communicate with the fluid passage 111 through the groove.
[0035] Refer to Figures 1 to 2 , in some embodiments of the present utility model, the plugging portion 1151 has a first annular clamping portion 1151a, and a second annular clamping portion 1141 is provided on the inner side wall of the sliding pipe fitting 114. The first annular clamping portion 1151a can be clamped with the second annular clamping portion 1141.
[0036] Specifically, the first annular clamping portion 1151a can be an annular protrusion 420 protruding outward, and the second annular clamping portion 1141 is correspondingly set as an annular groove. When plugging, the annular protrusion 420 is clamped with the annular groove to achieve fixed connection, and the installation is relatively convenient.
[0037] It can be understood that the plugging portion 1151 can also be set as an annular groove, and the inner side wall of the sliding pipe fitting 114 can be provided with an annular protrusion 420.
[0038] Refer to Figure 4 , in some embodiments of the present utility model, the elastic cylinder 400 includes an annular portion 410 and a plurality of protrusion portions 420. The protrusion portions 420 are provided at the end of the annular portion 410 and are arranged at intervals around the annular portion 410.
[0039] Specifically, the annular portion 410 is in the shape of an annular cylinder. The protrusion portions 420 can be semi-circular protrusions, and the protrusion portions 420 can be arranged at intervals at the bottom of the annular portion 410. The protrusion portions 420 can improve the deformation effect, and the annular portion 410 can be limited and cooperated with the annular limiting groove 113.
[0040] Refer to Figures 1 to 2, in some embodiments of the present utility model, a positioning member 116 is circumferentially installed on the sliding pipe fitting 114. The positioning member 116 can cooperate with the elastic body 300 for positioning, and the positioning member 116 can abut against the top of the elastic body 300. This can also facilitate the assembly of the sliding pipe fitting 114.
[0041] Specifically, the positioning member 116 can be installed on the outer side wall of the sliding pipe fitting 114. The specific installation method is not limited. The sliding pipe fitting 114 passes through the positioning member 116. The top of the elastic body 300 abuts against the positioning member 116, and the bottom abuts against the housing member. The positioning member 116 can limit the elastic body 300. And the sliding pipe fitting 114 first passes through other corresponding components and then installs the outwardly protruding positioning member 116, which will not interfere with other components and can facilitate assembly.
[0042] Refer to Figures 1 to 3 , in some embodiments of the present utility model, the elastic body 300 includes a positioning cylinder 310 and an elastic deformation cylinder 320. The positioning cylinder 310 is provided at the top of the elastic deformation cylinder 320. The positioning member 116 includes a sleeve 1161 and an annular limiting portion 1162. The annular limiting portion 1162 is provided at the top of the sleeve 1161. The sliding pipe fitting 114 passes through the sleeve 1161, the sleeve 1161 passes through the positioning cylinder 310, and the annular limiting portion 1162 abuts against the top of the positioning cylinder 310. The positioning cylinder 310 can align the axis of the elastic body 300 so that the elastic body 300 will not be offset and compressed, which can reduce the occurrence of the elastic body 300 being stuck and can also facilitate assembly.
[0043] Specifically, the sleeve 1161 can be sleeved on the sliding pipe fitting 114. It can be understood that the sliding pipe fitting 114 is provided with a card slot so that the sleeve 1161 can be clamped. The annular limiting portion 1162 is provided at the top of the sleeve 1161. The top of the elastic body 300 is transmitted through the annular limiting portion 1162. The positioning cylinder 310 can be in interference fit with the sleeve 1161 to align the axis of the elastic body 300 with the sliding pipe fitting 114. And the bottom of the elastic deformation cylinder 320 abuts against the lower housing 200. When pressed, the sliding assembly 110 slides down, and the annular limiting portion 1162 drives the elastic body 300 to be compressed. The elastic body 300 is mainly deformed and compressed by the elastic deformation portion 321. After releasing the press, the elastic force of the elastic body 300 drives the sliding pipe fitting 114 to slide up through the annular limiting portion 1162. The positioning cylinder 310 can align the axis of the elastic body 300 so that the elastic body 300 will not be offset and compressed, which can reduce the occurrence of the elastic body 300 being stuck. And during assembly, the positioning member 116 can be installed first, then the elastic body 300, and then installed with the lower housing 200, and the assembly is convenient.
[0044] In some embodiments of the present utility model, a plurality of ventilation grooves 330 are provided at the bottom end of the elastomer 300. Specifically, the ventilation grooves 330 can be set to four, and each ventilation groove 330 can communicate the cavity enclosed within the elastomer 300 with the outside, so that the cavity within the elastomer 300 will not be blocked by pressure, facilitating the deformation of the elastomer 300.
[0045] In some embodiments of the present utility model, the elastomer 300 includes a positioning cylinder 310 and an elastic deformation cylinder 320. The elastic deformation cylinder 320 includes a deformation part 321 and an annular positioning part 322. The upper end of the deformation part 321 is connected to the lower end of the positioning cylinder 310, the lower end of the deformation part 321 is connected to the annular positioning part 322, the bottom of the annular positioning part 322 abuts against the lower housing 200, and the thickness of the deformation part 321 is less than the thickness of the positioning cylinder 310 and the thickness of the annular positioning part 322. This facilitates the generation of elastic force during deformation and also facilitates the recovery of deformation.
[0046] Specifically, the positioning cylinder 310 cooperates with the positioning member 116, and the annular positioning part 322 of the elastic deformation cylinder 320 can be positioned and cooperate with the lower housing 200. The cross-section of the deformation part 321 can be set in a shape that arches outwards, and the thickness of the deformation part 321 can be set to be smaller, so as to facilitate the generation of elastic force during deformation and also facilitate the recovery of deformation.
[0047] In some embodiments of the present utility model, the pressing head assembly 100 further includes a pressing head 130. The pressing head 130 is connected to the sliding assembly 110, and the pressing head 130 is provided with a spraying port 131, and the spraying port 131 is communicated with the fluid passage 111. Specifically, the pressing head 130 can be pressed by the user, and the spraying port 131 can spray a mist.
[0048] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0049] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.
Claims
1. A fully plastic spray pump, characterized in that: include: A head assembly (100) comprises a sliding assembly (110) and a piston member (120), wherein the sliding assembly (110) has a fluid channel (111) therein, and a feed port (112) communicating with the fluid channel (111) is provided at the lower portion of the sliding assembly (110), and the piston member (120) is slidably disposed on the sliding assembly (110); The lower shell (200) is provided with a mounting groove opening upward and a one-way suction port (220) communicating with the outside, the sliding assembly (110) is slidably connected to the mounting groove, and the piston member (120) and the mounting groove are enclosed to form a pump suction cavity (210), and the one-way suction port (220) can limit the material in the pump suction cavity (210) from flowing outward; an elastic body (300), the top of which abuts against the sliding assembly (110), and the bottom of which abuts against the lower shell (200), and the elastic body (300) can drive the sliding assembly (110) to slide upward; The elastic cylinder (400) is provided with an annular limiting groove (113) opening downward in the circumference of the sliding component (110), the elastic cylinder (400) is installed in the annular limiting groove (113), and the bottom of the elastic cylinder (400) abuts against the piston member (120), and the top abuts against the bottom wall of the annular limiting groove (113), the elastic cylinder (400) can drive the piston member to block the feed port (112), and the annular limiting groove (113) can limit the excessive deformation of the elastic cylinder (400).
2. The all-plastic spray pump according to claim 1, characterized in that: The sliding assembly (110) includes a sliding tube (114) and a plunger (115), wherein the plunger (115) is inserted at the bottom of the sliding tube (114), and there is a gap between the plunger (115) and the sliding tube (114), wherein the gap is the feed port (112), the sliding tube (114) is arranged through the piston member (120), and the annular limiting groove (113) is arranged circumferentially of the sliding tube (114), and the piston member (120) can abut against the plunger (115) and block the feed port (112).
3. The all-plastic spray pump according to claim 2, characterized in that: The plunger (115) includes an inserting portion (1151) and a first positioning portion (1152), wherein the first positioning portion (1152) is disposed at the bottom end of the inserting portion (1151), and the inserting portion (1151) can be inserted into the sliding tube (114), and the first positioning portion (1152) is extended outwardly so that the piston member (120) can abut against the first positioning portion (1152).
4. The all-plastic spray pump according to claim 3, characterized in that: The plug-in portion (1151) has a first annular clamping portion (1151a), and the inner wall of the sliding tube (114) is provided with a second annular clamping portion (1141), and the first annular clamping portion (1151a) can be clamped with the second annular clamping portion (1141).
5. The all-plastic spray pump according to claim 1, characterized in that: The elastic tube (400) comprises an annular portion (410) and a plurality of protrusions (420), wherein the protrusions (420) are arranged at the ends of the annular portion (410) and are spaced around the annular portion (410).
6. The all-plastic spray pump according to claim 2, characterized in that: The sliding tube (114) is circumferentially mounted with a positioning piece (116), the positioning piece (116) can cooperate with the elastic body (300) for positioning, and the positioning piece (116) can abut against the top of the elastic body (300).
7. The all-plastic spray pump according to claim 6, characterized in that: The elastomer (300) includes a positioning tube (310) and an elastic deformation tube (320), wherein the positioning tube (310) is arranged at the top of the elastic deformation tube (320), and the positioning member (116) includes a sleeve (1161) and an annular limiting portion (1162), wherein the annular limiting portion (1162) is arranged at the top of the sleeve (1161), and the sliding tube (114) passes through the sleeve (1161), and the sleeve (1161) passes through the positioning tube (310), and the annular limiting portion (1162) abuts against the top of the positioning tube (310).
8. The all-plastic spray pump according to claim 1, characterized in that: The bottom end of the elastic body (300) is provided with a plurality of ventilation grooves (330).
9. The all-plastic spray pump according to claim 1, characterized in that: The elastic body (300) includes a positioning tube (310) and an elastic deformation tube (320), and the elastic deformation tube (320) includes a deformation portion (321) and an annular positioning portion (322). The upper end of the deformation portion (321) is connected to the lower end of the positioning tube (310), and the lower end of the deformation portion (321) is connected to the annular positioning portion (322). The bottom of the annular positioning portion (322) abuts against the lower shell (200), and the thickness of the deformation portion (321) is smaller than the thickness of the positioning tube (310) and the thickness of the annular positioning portion (322).
10. The all-plastic spray pump according to claim 1, characterized in that: The pressing head assembly (100) further comprises a pressing head (130), wherein the pressing head (130) is connected to the sliding assembly (110), and the pressing head (130) is provided with an injection port (131), and the injection port (131) is in communication with the fluid channel (111).