Continuous spray pump and continuous spray container

Abstract

The utility model discloses a continuous atomizing pump and a continuous atomizing container, and belongs to the technical field of atomizing sprayers, the continuous atomizing pump provided by the embodiment of the utility model has the advantages that the number of parts for realizing a continuous atomizing function is small, and the material cost is saved; during assembly, the first elastic piece is installed outside the liquid outlet pipe of the gland, the first piston is installed outside the liquid outlet pipe in a sleeving mode so that the gland and the first piston can limit the first elastic piece, then the gland, the first elastic piece and the first piston are installed in the inner cylinder, the second elastic piece is installed in the outer cylinder, and then the inner cylinder and the gland are installed in the outer cylinder. Continuous assembly of the atomizing pump is completed, and the assembly cost can be reduced; on the premise that the continuous spraying function is guaranteed, the number of structural components of the continuous spraying pump is small, and the material cost and the assembly cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to atomizing shower head technical field especially relates to a kind of continuous spray pump and continuous spray container. BACKGROUND

[0002] Continuous spray pump can continuously spray atomized liquid outside, generally store the pressure generated after user presses pump head by using pressure storage component in pump body, then slowly release pressure by pressure storage component to continuously spray atomized liquid. Based on this, the number of components related to the realization of pressure storage function of existing continuous spray pump is more, resulting in higher material cost and assembly cost. SUMMARY

[0003] The utility model at least solves one of the technical problems existing in prior art. To this end, the utility model provides a kind of continuous spray pump and continuous spray container, under the premise of ensuring continuous spray function, the number of structural components of the continuous spray pump of the embodiment is less, and material cost and assembly cost are reduced.

[0004] According to the continuous spray pump of the first aspect embodiment of the utility model, comprising:

[0005] The outer tube is provided with a first check valve at the bottom;

[0006] The inner tube is slidably arranged in the outer tube, and the outer wall of the inner tube is sealed with the inner wall of the outer tube; the bottom of the inner tube is provided with a second check valve;

[0007] The gland is connected to the top of the inner tube, and the gland is slidably arranged in the outer tube; the gland is provided with a liquid outlet pipe, and the top of the liquid outlet pipe is provided with a liquid outlet hole; the side wall of the liquid outlet pipe is provided with a liquid inlet hole;

[0008] The first piston is slidably arranged in the inner tube, and the first piston is sleeved outside the liquid outlet pipe; the first piston seals the inner wall of the inner tube and the outer wall of the liquid outlet pipe;

[0009] The first elastic member is connected between the gland and the first piston, and the elastic force of the first elastic member makes the first piston have a tendency to move away from the gland;

[0010] The second elastic member is arranged in the outer tube, and the second elastic member is connected to the gland; the elastic force of the second elastic member makes the gland have a tendency to move upward.

[0011] The continuous spraying pump has at least the following beneficial effects: when the gland is pressed down, the material at the bottom of the outer cylinder enters the bottom of the inner cylinder through the second one-way valve, the material entering the bottom of the inner cylinder pushes the first piston to move upwards against the elastic force of the first elastic member, and the liquid inlet hole is communicated with the bottom of the inner cylinder; when the second elastic member pushes the gland to restore to the original position, the material below the outer cylinder enters the bottom of the outer cylinder through the first one-way valve, the first elastic member pushes the first piston to move downwards, and the material at the bottom of the inner cylinder continuously flows to the liquid outlet hole through the liquid inlet hole and the liquid outlet pipe; since the first elastic member and the first piston pressurize the material at the bottom of the inner cylinder, the material sprayed from the liquid outlet hole has an atomization effect; after the first elastic member gradually restores to the original state and the elastic force decreases, the first piston moves downwards and gradually closes the liquid inlet hole, preventing insufficient pressurization and poor atomization effect of the material; therefore, after the user presses the gland once and releases it, the continuous spraying pump still continuously sprays the atomized material, realizing the continuous spraying function.

[0012] The continuous spraying pump has a small number of components for realizing the continuous spraying function, which helps to save material cost; during assembly, the first elastic member is installed outside the liquid outlet pipe of the gland, the first piston is sleeved outside the liquid outlet pipe so that the gland and the first piston limit the first elastic member, then the gland, the first elastic member and the first piston are installed to the inner cylinder, the second elastic member is installed into the outer cylinder, and then the inner cylinder and the gland are installed into the outer cylinder, thereby completing the assembly of the continuous spraying pump, which helps to reduce the assembly cost; under the premise of ensuring the continuous spraying function, the continuous spraying pump has a small number of structural components, thereby reducing the material cost and the assembly cost.

[0013] According to some embodiments of the utility model, the bottom of the liquid outlet pipe is provided with a baffle, and the baffle limits the freedom degree of the first piston moving downwards.

[0014] According to some embodiments of the utility model, the liquid outlet pipe comprises:

[0015] a body provided in the gland, and the liquid outlet hole is located at the top of the body;

[0016] a connecting pipe detachably connected to the bottom of the body, the liquid inlet hole is located in the side wall of the connecting pipe, the baffle is provided at the bottom of the connecting pipe, and the first piston is sleeved outside the connecting pipe.

[0017] According to some embodiments of the utility model, the side wall of the outer cylinder is provided with a through air return hole, the top of the outer cylinder is provided with an open mouth, the gland is provided with a second piston, and the second piston seals the inner side wall of the outer cylinder and the outer side wall of the inner cylinder.

[0018] When the gland is pressed to move the inner cylinder to the bottom of the outer cylinder, the air return hole is staggered with the second piston, and the air return hole is communicated with the open mouth and the outer side of the outer cylinder.

[0019] When the gland is restored to its original position, the second piston closes the air return hole.

[0020] According to some embodiments of the present application, the bottom of the inner cylinder is provided with a third piston, the third piston is sealed with the inner side wall of the outer cylinder, and the second elastic member is located in the area surrounded by the lower side of the second piston, the upper side of the third piston, the outer side wall of the inner cylinder and the inner side wall of the outer cylinder.

[0021] According to some embodiments of the present application, the gland closes the top of the inner cylinder, and the first elastic member is located in the area surrounded by the upper side of the first piston, the lower side of the gland, the inner side wall of the inner cylinder and the outer side wall of the liquid outlet pipe.

[0022] According to some embodiments of the present application, the inner side wall of the outer cylinder is provided with a step, and the continuous spray pump further comprises:

[0023] A limiting sleeve is arranged in the inner part of the outer cylinder, the bottom of the limiting sleeve abuts against the step, the limiting sleeve is sleeved on the outside of the second elastic member, and the inner side wall of the limiting sleeve is provided with a blocking ring which abuts against the bottom of the second elastic member.

[0024] According to some embodiments of the present application, the continuous spray pump further comprises:

[0025] A top cover is connected to the top of the outer cylinder, the top cover is provided with a through assembly hole, and the top cover limits the freedom degree of upward movement of the gland.

[0026] According to some embodiments of the present application, the bottom of the gland is provided with a mounting groove, the top of the inner cylinder is inserted into the mounting groove, the bottom of the gland is further provided with a first assembly groove, the top of the first piston is provided with a second assembly groove, and the upper and lower ends of the first elastic member are respectively inserted into the first assembly groove and the second assembly groove.

[0027] The continuous spray container according to the second aspect of the embodiments of the present application comprises the continuous spray pump according to the above-mentioned embodiments.

[0028] Since the continuous spray container adopts all the technical solutions of the continuous spray pump according to the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic view of a continuous spray pump according to an embodiment of the present application;

[0030] Figure 2 is an exploded schematic view of a continuous spray pump according to an embodiment of the present application;

[0031] Figure 3 is the schematic diagram of the pressure cover of the continuous spray pump of one embodiment of the utility model after being pressed down, wherein the arrow indicates the liquid flow direction;

[0032] Figure 4 is the schematic diagram of the pressure cover of the continuous spray pump of one embodiment of the utility model after being reset, wherein the arrow indicates the liquid flow direction.

[0033] The figure mark: outer cylinder 100, first inner cavity 101, first liquid suction hole 102, first one-way valve 110, back gas hole 120, open mouth 130, step 140, inner cylinder 200, second inner cavity 201, second liquid suction hole 202, second one-way valve 210, third piston 220, pressure cover 300, liquid outlet pipe 310, body 3101, connecting pipe 3102, liquid outlet hole 311, liquid inlet hole 312, baffle 313, second piston 320, mounting groove 330, first assembly groove 340, first piston 400, second assembly groove 410, first elastic member 500, second elastic member 600, limiting sleeve 700, baffle ring 710, top cover 800, assembly hole 810. DETAILED DESCRIPTION

[0034] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0035] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms front, back, up, down, axial, circumferential, etc. is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0036] In the description of the utility model, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number, above, below, etc. is included in the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0037] In the description of the utility model, it should be noted that the words such as setting, installation and connection should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0038] The technical solutions of the utility model will be described clearly and completely in connection with the drawings. Obviously, the following described embodiments are some of the embodiments of the utility model, not all the embodiments.

[0039] Referring to Figures 1 to 4 The utility model provides a continuous spray pump, and the continuous spray pump comprises an outer cylinder 100, an inner cylinder 200, a gland 300, a first piston 400, a first elastic member 500 and a second elastic member 600.

[0040] The first inner cavity 101 is internally provided with a first liquid suction hole 102 communicating with the outside world, and a first one-way valve 110 is arranged in the first liquid suction hole 102; the first one-way valve 110 allows the material to pass from bottom to top and flow into the first inner cavity 101.

[0041] The second inner cavity 201 is internally provided with a second liquid suction hole 202 communicating with the outside world, and a second one-way valve 210 is arranged in the second liquid suction hole 202; the second one-way valve 210 allows the material to pass from bottom to top and flow into the second inner cavity 201.

[0042] The gland 300 is installed at the top of the inner cylinder 200 and is also slidably arranged in the first inner cavity 101 of the outer cylinder 100; the gland 300 is provided with a liquid outlet pipe 310 extending upwards and downwards, the top of the liquid outlet pipe 310 is provided with a liquid outlet hole 311 communicating with the outside world, the side wall of the liquid outlet pipe 310 is provided with a liquid inlet hole 312, and the liquid inlet hole 312 communicates with the second inner cavity 201 of the inner cylinder 200.

[0043] The first piston 400 is slidably arranged in the second inner cavity 201 of the inner cylinder 200, the outer side wall of the first piston 400 is sealed with the inner side wall of the second inner cavity 201 of the inner cylinder 200, the first piston 400 is provided with a mounting hole extending upwards and downwards, the first piston 400 is sleeved on the outside of the liquid outlet pipe 310 through the mounting hole, and the inner wall of the mounting hole of the first piston 400 is sealed with the outer side wall of the liquid outlet pipe 310.

[0044] The first elastic member 500 is arranged in the second inner cavity 201 of the inner cylinder 200, and the upper and lower ends of the first elastic member 500 are connected with the pressure cover 300 and the first piston 400 respectively. The first piston 400 slides up and down along the second inner cavity 201 of the inner cylinder 200 to change the length of the first elastic member 500. The elastic force of the first elastic member 500 pushes the first piston 400 to move downward along the second inner cavity 201 of the inner cylinder 200 and away from the pressure cover 300.

[0045] The second elastic member 600 is arranged in the first inner cavity 101 of the outer cylinder 100, and the second elastic member 600 is connected with the pressure cover 300 and the outer cylinder 100. The pressure cover 300 and the inner cylinder 200 slide up and down in the first inner cavity 101 of the outer cylinder 100 to change the length of the second elastic member 600. The elastic force of the second elastic member 600 pushes the pressure cover 300 to move upward along the first inner cavity 101 of the outer cylinder 100 and drives the inner cylinder 200 to move upward.

[0046] In the embodiment, the first elastic member 500 and the second elastic member 600 can be springs, plastic springs or elastic members with elastic restoring ability.

[0047] Referring to Figure 3 When the pressure cover 300 is pressed, the material at the bottom of the first inner cavity 101 of the outer cylinder 100 enters the bottom of the second inner cavity 201 of the inner cylinder 200 through the second one-way valve 210 of the second liquid suction hole 202. The material at the bottom of the second inner cavity 201 of the inner cylinder 200 pushes the first piston 400 to move upward against the elastic force of the first elastic member 500 due to the increase in volume, so that the liquid inlet hole 312 of the side wall of the liquid outlet pipe 310 is connected with the bottom of the second inner cavity 201 of the inner cylinder 200. Because the first elastic member 500 and the first piston 400 pressurize the material in the space, the material sprayed from the liquid outlet hole 311 has an atomization effect.

[0048] Referring to Figure 4As shown, when the second elastic member 600 pushes the cover 300 upward to restore to the original position, the air pressure at the bottom of the first inner cavity 101 of the outer cylinder 100 is reduced, causing the material below the outer cylinder 100 to be sucked into the bottom of the first inner cavity 101 of the outer cylinder 100 through the first one-way valve 110 of the first liquid suction hole 102; and the elastic force of the first elastic member 500 also pushes the first piston 400 to move downward relative to the inner cylinder 200, the first piston 400 extrudes the material below, and the second one-way valve 210 prevents the material at the bottom of the second inner cavity 201 from flowing to the first inner cavity 101 of the outer cylinder 100, so that the material at the bottom of the second inner cavity 201 of the inner cylinder 200 continuously flows to the liquid outlet hole 311 through the liquid inlet hole 312 and the liquid outlet pipe 310. Due to the pressurization of the material at the bottom of the second inner cavity 201 by the first elastic member 500 and the first piston 400, the material sprayed from the liquid outlet hole 311 has an atomization effect. When the first elastic member 500 gradually restores to the original state and the elastic force decreases, the first piston 400 moves downward and gradually closes the liquid inlet hole 312, preventing insufficient pressurization and causing poor atomization of the material. Therefore, after the user presses the cover 300 and releases it once, the continuous spraying pump still continuously sprays the atomized material, realizing the continuous spraying function.

[0049] The continuous spraying pump of the present embodiment has fewer components to realize the continuous spraying function, which helps to save material costs. When assembling, the first elastic member 500 is installed outside the liquid outlet pipe 310 of the cover 300, the first piston 400 is sleeved outside the liquid outlet pipe 310 so that the cover 300 and the first piston 400 limit the first elastic member 500, and then the cover 300, the first elastic member 500 and the first piston 400 are installed into the second inner cavity 201 of the inner cylinder 200. After the second elastic member 600 is installed into the first inner cavity 101 of the outer cylinder 100, the inner cylinder 200 and the cover 300 are installed into the first inner cavity 101 of the outer cylinder 100, and the assembly of the continuous spraying pump is completed, which helps to reduce the assembly cost. Under the premise of ensuring the continuous spraying function, the continuous spraying pump of the present embodiment has fewer structural components, which reduces the material cost and the assembly cost.

[0050] In some embodiments, referring to Figures 1 to 4 As shown, the bottom of the liquid outlet pipe 310 is provided with an outwardly extending baffle 313, the outer diameter of the baffle 313 is greater than the hole diameter of the mounting hole of the first piston 400, and the stroke of the first piston 400 moving downward is limited by the baffle 313 at the bottom of the liquid outlet pipe 310. When the bottom of the first piston 400 abuts against the baffle 313, the first piston 400 closes the liquid inlet hole 312 of the liquid outlet pipe 310.

[0051] The stroke of the first piston 400 moving downward is limited by the baffle 313 at the bottom of the liquid outlet pipe 310 to ensure that the first piston 400 can close the liquid inlet hole 312 after abutting against the baffle 313, avoiding the first piston 400 from being separated from the bottom of the liquid outlet pipe 310.

[0052] The distance between the liquid inlet hole 312 and the baffle 313 affects the pressurization of the space below the second inner cavity 201 of the inner cylinder 200 by the first piston 400. The greater the distance between the liquid inlet hole 312 and the baffle 313, the more material stored at the bottom of the second inner cavity 201 of the inner cylinder 200, the greater the distance by which the first piston 400 is pushed by the material to compress the first elastic member 500, and the greater the downward elastic force of the first elastic member 500 on the first piston 400, resulting in a higher pressurization capacity of the first piston 400 and the first elastic member 500 on the space below the second inner cavity 201 of the inner cylinder 200, which helps to increase the atomization degree of the material sprayed from the liquid outlet hole 311.

[0053] Therefore, the distance between the liquid inlet hole 312 and the baffle 313 can be changed according to the atomization requirements of different types of materials.

[0054] In some embodiments, referring to Figures 1 to 4 As shown in the figure, the liquid outlet pipe 310 includes a body 3101 and a connecting pipe 3102, the top of the connecting pipe 3102 is inserted into the bottom of the body 3101, the body 3101 is integrally formed with the gland 300, the top of the body 3101 protrudes above the gland 300, the liquid outlet hole 311 is arranged at the top of the body 3101, the liquid inlet hole 312 is arranged on the side wall of the connecting pipe 3102, the baffle 313 is arranged at the bottom of the connecting pipe 3102, and the first piston 400 is sleeved outside the connecting pipe 3102.

[0055] When assembling the gland 300, the first piston 400, and the first elastic member 500, the first piston 400 can be sleeved outside the connecting pipe 3102 first, then the bottom of the first elastic member 500 is connected to the top of the first piston 400, and then the top of the connecting pipe 3102 is inserted into the bottom of the body 3101, so that the top of the first elastic member 500 abuts against the top of the gland 300, making the assembly of the gland 300, the first piston 400, and the first elastic member 500 more convenient and reducing the assembly cost.

[0056] In some embodiments, the side wall of the outer cylinder 100 is provided with a gas return hole 120, the gas return hole 120 communicates the first inner cavity 101 with the outside of the outer cylinder 100, the top of the outer cylinder 100 is also provided with an opening 130 to facilitate the inner cylinder 200 and the gland 300 to be assembled into the first inner cavity 101 of the outer cylinder 100 from the opening 130, the outside of the gland 300 is provided with a second piston 320, the outer side wall of the second piston 320 is sealed with the inner side wall of the first inner cavity 101 of the outer cylinder 100, the second piston 320 can close or open the gas return hole 120 by moving up and down with the gland 300, the second piston 320 is connected with the top of the inner cylinder 200, and the second piston 320 seals the outer side wall of the inner cylinder 200.

[0057] Referring to Figure 3As shown, when the cap 300 is pressed, the material at the bottom of the first inner cavity 101 of the outer cylinder 100 enters the bottom of the second inner cavity 201 of the inner cylinder 200 through the second one-way valve 210 of the second liquid suction hole 202, and the material at the bottom of the second inner cavity 201 of the inner cylinder 200 pushes the first piston 400 to move upward against the elastic force of the first elastic member 500 due to the increase in volume, so that the liquid inlet hole 312 of the side wall of the liquid outlet pipe 310 is connected to the bottom of the second inner cavity 201 of the inner cylinder 200.

[0058] Referring to Figure 4 As shown, when the second elastic member 600 pushes the cap 300 to return to the original position, the air pressure at the bottom of the first inner cavity 101 of the outer cylinder 100 decreases, and the material below the outer cylinder 100 is sucked into the bottom of the first inner cavity 101 of the outer cylinder 100 through the first one-way valve 110 of the first liquid suction hole 102.

[0059] Referring to Figure 3 As shown, since the material below the outer cylinder 100 is sucked into the bottom of the first inner cavity 101 of the outer cylinder 100, the internal air pressure of the container connected to the continuous spray pump decreases. When the cap 300 is pressed, the cap 300 drives the inner cylinder 200 to move downward along the first inner cavity 101 of the outer cylinder 100, so that the bottom of the inner cylinder 200 moves to the bottom of the outer cylinder 100, the second piston 320 of the cap 300 moves downward and is disengaged from the air return hole 120, the air return hole 120 is opened and connected to the space above the cap 300 and the outside of the outer cylinder 100, and the external air is supplemented into the container through the opening 130 and the air return hole 120 to recover the internal air pressure of the container, so as to avoid the negative pressure in the container to hinder the material from entering the first inner cavity 101 of the outer cylinder 100 through the first one-way valve 110.

[0060] Referring to Figure 4 As shown, when the pressure of pressing the cap 300 is removed, the second elastic member 600 pushes the cap 300 to return to the original position, and the second piston 320 moves upward with the cap 300 and closes the air return hole 120.

[0061] The elastic force of the first elastic member 500 also drives the first piston 400 to move downward relative to the inner cylinder 200, the first piston 400 extrudes the material below, and the second one-way valve 210 prevents the material at the bottom of the second inner cavity 201 from flowing to the first inner cavity 101 of the outer cylinder 100, so that the material at the bottom of the second inner cavity 201 of the inner cylinder 200 continuously flows to the liquid outlet hole 311 through the liquid inlet hole 312 and the liquid outlet pipe 310.

[0062] In some embodiments, referring to Figures 1 to 4As shown, the bottom periphery of the inner cylinder 200 is provided with a third piston 220, the outer side wall of the third piston 220 is sealed with the inner side wall of the first inner cavity 101 of the outer cylinder 100, the inner side wall of the first inner cavity 101 of the outer cylinder 100, the outer side wall of the inner cylinder 200, the upper side of the third piston 220 and the lower side of the second piston 320 form a closed space, and the second elastic member 600 is arranged in the closed space.

[0063] The second elastic member 600 is arranged in the closed space, so that the second elastic member 600 is separated from the flow channel of the material, avoiding the contact of the material with the second elastic member 600 to cause the elastic force of the second elastic member 600 to decrease, and ensuring the resilience of the second elastic member 600 to the gland 300.

[0064] In some embodiments, referring to Figures 1 to 4 As shown, the inner side wall of the mounting hole of the first piston 400 is sealed with the outer wall of the liquid outlet pipe 310, the gland 300 seals the top of the inner cylinder 200, the inner side wall of the second inner cavity 201 of the inner cylinder 200, the outer side wall of the liquid outlet pipe 310, the lower side of the gland 300 and the upper side of the first piston 400 form a closed space, and the first elastic member 500 is arranged in the closed space.

[0065] The first elastic member 500 is arranged in the closed space, so that the first elastic member 500 is separated from the flow channel of the material, avoiding the contact of the material with the first elastic member 500 to cause the elastic force of the first elastic member 500 to decrease, and ensuring the resilience of the first elastic member 500 to the first piston 400, ensuring the pressurizing ability of the first piston 400 to the bottom of the second inner cavity 201 of the inner cylinder 200, and further ensuring the continuous spraying function of the continuous spraying pump.

[0066] In some embodiments, referring to Figures 1 to 4 As shown, the inner side wall of the first inner cavity 101 of the outer cylinder 100 is provided with a step 140, the bottom of the second elastic member 600 abuts against the step 140, and the top of the second elastic member 600 abuts against the gland 300.

[0067] The step 140 is used to limit the second elastic member 600, so that the second elastic member 600 can be quickly installed.

[0068] In some embodiments, referring to Figures 1 to 4 As shown, the continuous spraying pump is further provided with a limiting sleeve 700, the limiting sleeve 700 is arranged in the first inner cavity 101 of the outer cylinder 100, the bottom of the limiting sleeve 700 abuts against the step 140, the limiting sleeve 700 is sleeved outside the second elastic member 600, the second elastic member 600 is sleeved outside the inner cylinder 200, the bottom of the limiting sleeve 700 is provided with an inwardly extending blocking ring 710, and the bottom of the second elastic member 600 abuts against the blocking ring 710.

[0069] When assembling the second elastic member 600, the cover 300 and the inner cylinder 200 are first assembled, then the second elastic member 600 is sleeved outside the inner cylinder 200, and then the limiting sleeve 700 is sleeved at the bottom of the second elastic member 600. After that, the limiting sleeve 700, the second elastic member 600, the inner cylinder 200 and the cover 300 are assembled into the first inner cavity 101 of the outer cylinder 100. The limiting sleeve 700 is abutted on the step 140 of the first inner cavity 101 under the action of the second elastic member 600, so as to avoid the bottom of the second elastic member 600 from being inserted into the gap between the outer wall of the inner cylinder 200 and the inner wall of the first inner cavity 101 of the outer cylinder 100.

[0070] In some embodiments, referring to Figures 1 to 4 As shown, the continuous spray pump is also provided with a top cover 800 connected with the top of the outer cylinder 100. The top cover 800 is provided with an assembly hole 810 penetrating up and down. The stroke of the upward movement of the cover 300 is limited by the top cover 800. When the elastic force of the second elastic member 600 pushes the cover 300 to move upward, the cover 300 reaches the bottom of the top cover 800.

[0071] The stroke of the upward movement of the cover 300 is limited by the top cover 800, so as to avoid the cover 300 from being separated from the outer cylinder 100. After the continuous spray pump is assembled, it can be independently packaged and transported, so that the continuous spray pump can be directly installed on any suitable container in the subsequent process.

[0072] In some embodiments, referring to Figure 2 As shown, the bottom of the cover 300 is provided with a mounting groove 330 and a first assembly groove 340. The mounting groove 330 surrounds the circumference of the cover 300, and the first assembly groove 340 surrounds the circumference of the cover 300. The first assembly groove 340 is closer to the center of the cover 300 than the mounting groove 330. The top of the inner cylinder 200 is inserted into the mounting groove 330, and the top end of the first elastic member 500 is inserted into the first assembly groove 340.

[0073] The top of the first piston 400 is provided with a second assembly groove 410. The second assembly groove 410 surrounds the circumference of the first piston 400, and the bottom end of the first elastic member 500 is inserted into the second assembly groove 410.

[0074] When assembling the cover 300, the inner cylinder 200 and the first elastic member 500, the cover 300, the first elastic member 500 and the first piston 400 are first assembled. The first assembly groove 340 of the cover 300 and the second assembly groove 410 of the first piston 400 cooperate with the upper and lower ends of the first elastic member 500. Then, the cover, the first elastic member 500 and the first piston 400 are assembled into the second inner cavity 201 of the inner cylinder 200. The mounting groove 330 of the cover 300 cooperates with the top end of the inner cylinder 200, so that the assembly of the cover 300, the inner cylinder 200 and the first elastic member 500 is more convenient.

[0075] The utility model still provides a kind of continuous spray container, including the continuous spray pump described in the above embodiment.

[0076] The continuous spray container further includes a container body provided with a bottle mouth, and the continuous spray pump is installed into the bottle mouth. The material inside the container body can be sprayed out by using the continuous spray pump. Of course, a suction tube can also be connected to the bottom of the outer cylinder 100, and the end of the suction tube extends to the bottom of the container body, so that the continuous spray pump can suck and spray all the materials inside the container body.

[0077] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge possessed by those skilled in the art without departing from the purpose of the utility model.

Claims

1. A continuous spray pump, characterized in that, include: The outer cylinder has a first check valve at the bottom; The inner cylinder is slidably disposed within the outer cylinder, and the outer wall of the inner cylinder is sealed to the inner wall of the outer cylinder. A second one-way valve is provided at the bottom of the inner cylinder. A pressure cap is connected to the top of the inner cylinder. The pressure cap is slidably disposed in the outer cylinder. The pressure cap is provided with a liquid outlet pipe. The top of the liquid outlet pipe is provided with a liquid outlet hole, and the side wall of the liquid outlet pipe is provided with a liquid inlet hole. The first piston is slidably disposed in the inner cylinder and sleeved on the outside of the liquid outlet pipe. The first piston seals the inner wall of the inner cylinder and the outer wall of the liquid outlet pipe. A first elastic element connects the pressure cap and the first piston, and the elastic force of the first elastic element causes the first piston to tend to move away from the pressure cap. A second elastic element is disposed in the outer cylinder. The second elastic element is connected to the pressure cap. The elastic force of the second elastic element causes the pressure cap to have an upward tendency.

2. The continuous spray pump according to claim 1, characterized in that, The bottom of the liquid outlet pipe is provided with a baffle, which restricts the degree of freedom of the first piston to move downward.

3. The continuous spray pump according to claim 2, characterized in that, The outlet pipe includes: The body is located on the pressure cap, and the liquid outlet is located on the top of the body; A connecting tube is detachably connected to the bottom of the main body. The liquid inlet is located on the side wall of the connecting tube. The baffle is located at the bottom of the connecting tube. The first piston is sleeved on the outside of the connecting tube.

4. The continuous spray pump according to claim 1, characterized in that, The outer cylinder has a through-hole for air return on its side wall, and the top of the outer cylinder has an opening. The pressure cap has a second piston, which seals the inner side wall of the outer cylinder and the outer side wall of the inner cylinder. When the pressure cap is pressed, the inner cylinder moves to the bottom of the outer cylinder, the vent hole is misaligned with the second piston, and the vent hole connects the opening to the outside of the outer cylinder; When the gland returns to its original position, the second piston closes the vent hole.

5. The continuous spray pump according to claim 4, characterized in that, The bottom of the inner cylinder is provided with a third piston, which is sealed to the inner wall of the outer cylinder. The second elastic element is located below the second piston, above the third piston, and in the area enclosed by the outer wall of the inner cylinder and the inner wall of the outer cylinder.

6. The continuous spray pump according to claim 1, characterized in that, The pressure cap seals the top of the inner cylinder, and the first elastic element is located in the area enclosed by the first piston, the pressure cap, the inner wall of the inner cylinder, and the outer wall of the outlet pipe.

7. The continuous spray pump according to claim 1, characterized in that, The inner wall of the outer cylinder is provided with a step, and the continuous spray pump further includes: A limiting sleeve is disposed inside the outer cylinder, the bottom of the limiting sleeve abuts against the step, the limiting sleeve is sleeved on the outside of the second elastic member, and a retaining ring is provided on the inner side wall of the limiting sleeve, the retaining ring abuts against the bottom of the second elastic member.

8. The continuous spray pump according to claim 1, characterized in that, The continuous spray pump also includes: The top cover is connected to the top of the outer cylinder. The top cover has a through mounting hole and restricts the degree of freedom of the pressure cap to move upward.

9. The continuous spray pump according to claim 1, characterized in that, The bottom of the pressure cap is provided with an installation groove, the top of the inner cylinder is inserted into the installation groove, the bottom of the pressure cap is also provided with a first assembly groove, the top of the first piston is provided with a second assembly groove, and the upper and lower ends of the first elastic element are respectively inserted into the first assembly groove and the second assembly groove.

10. A continuous spray container, characterized in that, Including a continuous spray pump as described in any one of claims 1 to 9.

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