Gasket-free self-sealing buckle spray

Abstract

The utility model discloses a gasket-free self-sealing buckle sprayer which comprises a sprayer device, a connecting cover, a large cover and a water pumping device, the upper end of the large cover is provided with a movable groove with an opening in the upper end, the sprayer device is movably arranged in the movable groove, the lower end of the large cover is provided with an installation groove with an opening in the lower end, and the groove bottom wall of the installation groove is provided with a convex rib. The connecting cover is provided with a groove for inserting the convex rib, the convex rib is inserted in the groove to seal the connecting cover and the large cover, the large cover is provided with a first through hole, the first through hole is communicated with the movable groove and the mounting groove, and the connecting cover penetrates through the first through hole and is partially located in the movable groove; a second through hole is formed in the connecting cover, and the spray head device and the water pumping device are connected into the second through hole. Due to the fact that the protruding edges and the grooves are arranged, after a product is pressed into a bottle opening, the concave-convex ribs between the connecting cover and the large cover are matched to play a sealing role, a sealing gasket does not need to be used for sealing any more, and the sealing effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of sprayers, in particular to a gasket-free self-sealing buckle sprayer. Background Art

[0002] A sprayer is a device that uses air suction to turn lubricating oil or other liquids into mist and sprays it evenly onto other objects. It consists of a compressed air device, a capillary tube, a nozzle, etc.

[0003] The existing sprayer is sealed with a sealing gasket at the connection between the connection cover and the large cover, which not only leaves a certain gap at the connection between the two, but also has poor sealing performance. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide a gasket-free self-sealing snap-on spray. By arranging convex ridges and grooves, when the product is pressed into the bottle mouth, the concave and convex ribs between the connecting cover and the large cover cooperate to play a sealing role, so that there is no need to use a sealing gasket for sealing, and the sealing effect is better.

[0006] (II) Technical solution

[0007] The solution adopted by the utility model to solve the above-mentioned technical problems is a gasket-free self-sealing snap-on spray, comprising a nozzle device, a connecting cover, a large cover and a pumping device, wherein the upper end of the large cover is provided with a movable groove with an upper end opening, the nozzle device can be movably arranged in the movable groove, the lower end of the large cover is provided with a mounting groove with a lower end opening, the bottom wall of the mounting groove is provided with a convex rib, the connecting cover is provided with a groove for inserting the convex rib, the convex rib is inserted in the groove to seal the connecting cover and the large cover, the large cover is provided with a first through hole, the first through hole connects the movable groove and the mounting groove, the connecting cover passes through the first through hole and is partially located in the movable groove, the connecting cover is provided with a second through hole, and the nozzle device and the pumping device are connected in the second through hole.

[0008] By adopting the above scheme, by providing convex ridges and grooves, when the product is pressed into the bottle mouth, the concave and convex ribs between the connecting cover and the large cover cooperate to play a sealing role, so that there is no need to use a sealing gasket for sealing, and the sealing effect is better.

[0009] Preferably, the inner peripheral wall of the installation groove is provided with convex ridges, and the convex ridges are provided with a plurality of slots.

[0010] Preferably, the connection cover is in a "convex" shape, the second through hole is formed at the lower end of the connection cover, and a plug hole connected to the second through hole is formed at the upper end of the connection cover.

[0011] As a further preference, the spray head device comprises a head cap and a spray piece, the head cap is movably arranged in the movable groove, a mounting hole is opened on the head cap, and the spray piece is installed in the mounting hole.

[0012] As a further preference, the spray head device also includes a piston rod, a fixing groove with an opening at the lower end is provided on the head cap, a connecting column is provided at the bottom of the fixing groove, a water inlet channel connected to the mounting hole is provided on the connecting column, the piston rod is inserted in the water inlet channel, and the other end of the piston rod passes through the socket and is connected to the water pumping device.

[0013] As a further preference, the water pumping device comprises a pump body assembly and a suction pipe, the pump body assembly is connected to the piston rod, and the suction pipe is inserted into the pump body assembly.

[0014] As a further preference, the pump body assembly includes a piston, a short spring, a long spring, a spring seat and a pump body, the pump body is inserted into the second through hole, a connecting hole with an upper opening is opened on the pump body, the lower end of the piston rod passes through the insertion hole and is located in the connecting hole, the spring seat is inserted into the lower end of the piston rod, the piston is sleeved at the connection between the spring seat and the piston rod, a limiting convex ring is provided at the position of the piston rod in the connecting hole, the short spring is sleeved between the limiting convex ring and the piston, and the long spring is sleeved between the spring seat and the bottom wall of the connecting hole.

[0015] As a further preference, the pump body assembly also includes a glass bead, a movable groove is provided on the bottom wall of the connecting hole, the glass bead is movably arranged in the movable groove, a slot is provided on the bottom wall of the movable groove, and the straw is inserted in the slot.

[0016] As a further preference, a sealing ring is provided at the upper end of the limiting convex ring.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model designs a gasket-free self-sealing buckle spray.

[0019] (1) By providing convex ridges and concave grooves, when the product is pressed into the bottle mouth, the concave and convex ribs between the connecting cover and the large cover cooperate to play a sealing role, so that there is no need to use a sealing gasket for sealing, and the sealing effect is better.

[0020] (2) The high resilience of the connecting cover is utilized to form an interference fit with the bottle mouth, which can replace the gasket or sealing ring to seal between the bottle mouth.

[0021] (3) The large cover adopts a three-point opening bayonet structure instead of the original threaded structure to connect the liquid bottle more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the gasket-free self-sealing buckle spray of the utility model;

[0024] Figure 2 It is a schematic diagram of the explosion structure of the gasket-free self-sealing buckle spray of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the head cap of the gasket-free self-sealing snap-on sprayer of the utility model;

[0026] Figure 4 It is a schematic diagram of the first structure of the gasket-free self-sealing buckle spray after the connecting cover and the large cover are connected;

[0027] Figure 5 It is a schematic diagram of the second structure of the gasket-free self-sealing buckle spray after the connecting cover and the large cover are connected;

[0028] Figure 6 It is a structural schematic diagram of the pump body of the gasket-free self-sealing buckle sprayer of the utility model;

[0029] Figure 7 It is a schematic cross-sectional structure diagram of the gasket-free self-sealing buckle sprayer of the utility model;

[0030] Figure 8 It is a structural schematic diagram of the large cover of the gasket-free self-sealing snap-on sprayer of the utility model;

[0031] Fig. 9 It is a structural schematic diagram of the connection cover of the gasket-free self-sealing buckle sprayer of the utility model;

[0032] Fig.10 The utility model is a schematic diagram of the pump body assembly of the gasket-free self-sealing clip sprayer without the connection structure of the pump body.

[0033] The names of the components corresponding to the various figure marks in the figure are: 1. nozzle device; 11. head cap; 12. spray plate; 13. mounting hole; 14. piston rod; 141. limiting convex ring; 15. fixing groove; 16. connecting column; 17. water inlet channel; 2. connecting cover; 21. groove; 22. second through hole; 23. plug-in hole; 3. large cover; 31. movable groove; 32. mounting groove; 33. convex rib; 34. first through hole; 35. convex rib; 36. bayonet; 4. pumping device; 41. piston; 42. short spring; 43. long spring; 44. spring seat; 45. pump body; 451. connecting hole; 452. movable groove; 453. slot; 46. glass bead; 5. sealing ring. DETAILED DESCRIPTION

[0034] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0036] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0037] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0038] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0039] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0040] This embodiment:

[0041] like Figure 1-Figure 10 As shown, a gasket-free self-sealing snap-on sprayer of the present embodiment comprises a spray head device 1, a connecting cover 2, a large cover 3 and a pumping device 4, wherein the upper end of the large cover 3 is provided with a movable groove 31 with an upper end opening, the spray head device 1 can be movably arranged in the movable groove 31, the lower end of the large cover 3 is provided with a mounting groove 32 with a lower end opening, the groove bottom wall of the mounting groove 32 is provided with a convex rib 33, the connecting cover 2 is provided with a groove 21 for inserting the convex rib 33, the convex rib 33 is inserted in the groove 21 to seal the connecting cover 2 and the large cover 3, the large cover 3 is provided with a first through hole 34, the first through hole 34 connects the movable groove 31 and the mounting groove 32, the connecting cover 2 passes through the first through hole 34 and is partially located in the movable groove 31, the connecting cover 2 is provided with a second through hole 22, the spray head device 1 and the pumping device 4 are connected in the second through hole 22.

[0042] Furthermore, as a preferred embodiment, a convex ridge 35 is provided on the inner peripheral wall of the installation groove 32 , and a plurality of bayonet holes 36 are opened on the convex ridge 35 .

[0043] Further, as a preferred embodiment, the connection cover 2 is configured in a “convex” shape, the lower end of the connection cover 2 is provided with the second through hole 22 , and the upper end of the connection cover 2 is provided with a plug hole 23 connected to the second through hole 22 .

[0044] Specifically, in this embodiment, the nozzle device 1, the connecting cover 2, the large cover 3 and the pumping device 4 are included. The large cover 3 is arranged in a cylindrical shape. The upper end of the large cover 3 is provided with a movable groove 31 with an upper end opening, and the lower end of the large cover 3 is provided with a mounting groove 32 with a lower end opening. The bottom wall of the movable groove 31 is provided with a first through hole 34, and the first through hole 34 connects the mounting groove 32 and the movable groove 31. The bottom wall of the mounting groove 32 is provided with a convex rib 33. The convex rib 33 is arranged at the periphery of the first through hole 34 and is arranged in a circular ring shape and is concentric with the first through hole 34. The inner surface and / or the outer surface of the convex rib 33 The inclined arrangement close to each other in the direction of the center line can better match the groove 21; the large cover 3 is provided with a convex rib 35, which is arranged on the inner peripheral wall of the mounting groove 32 and is arranged in a circular ring shape, and a plurality of bayonet holes 36 are provided on the convex rib 35, and a total of three bayonet holes 36 are provided. The large cover 3 is used to connect an external liquid bottle. In the prior art, an internal thread is provided in the large cover 3, which is threadedly connected with the external thread on the upper end of the liquid bottle to connect the liquid bottle to the large cover 3. Now a card block is provided on the liquid bottle, and the card block is clamped in the bayonet hole 36 to connect the liquid bottle to the large cover 3, making connection and disassembly more convenient and more convenient to manufacture. The large cover 3 adopts a three-point opening bayonet hole 36 structure instead of the original threaded structure to connect the liquid bottle more conveniently.

[0045] Specifically, in this embodiment, the connection cover 2 is provided in a "convex" shape and includes an integrally provided vertical part and a connection ring part provided at the lower end thereof. A second through hole 22 is provided on the vertical part, and the second through hole 22 is formed by the vertical part and the connection ring part. A plug is provided on the bottom wall of the second through hole 22, and a plug is provided on the plug with a plug hole 23, and the plug hole 23 passes through the upper end surface of the vertical part of the connection cover 2 and communicates with the second through hole 22. The nozzle device 1 passes through the plug hole 23 and is connected to the pumping device 4 in the second through hole 22. Two concentrically arranged convex rings are provided at the upper end of the connection ring part of the connection cover 2 and located at the outer periphery of the vertical part. A groove 21 is provided between the two convex rings. The groove 21 is provided for the convex rib 33 to be inserted. When the large cover 3 is connected to the connection cover 2, the convex rib 33 is inserted in the groove 21 to seal the connection between the two. The high resilience of the connection cover 2 forms an interference fit with the bottle mouth, and can replace the gasket or the sealing ring 5 to seal the bottle mouth. The nozzle device 1 is movably disposed in the movable groove 31 , the connecting cover 2 passes through the first through hole 34 and is partially located in the movable groove 31 , a second through hole 22 is opened on the connecting cover 2 , and the nozzle device 1 and the pumping device 4 are connected in the second through hole 22 .

[0046] Specifically, in this embodiment, by providing the convex ribs 35 and the concave grooves 21, when the product is pressed into the bottle mouth, the concave and convex ribs 33 between the connecting cover 2 and the large cover 3 cooperate to play a sealing role, so that there is no need to use a sealing gasket for sealing, and the sealing effect is better.

[0047] Further, as a preferred embodiment, the spray head device 1 includes a head cap 11 and a spray piece 12, the head cap 11 is movably provided in the movable groove 31, the head cap 11 is provided with a mounting hole 13, and the spray piece 12 is installed in the mounting hole 13. The spray head device 1 also includes a piston rod 14, the head cap 11 is provided with a fixing groove 15 with an opening at the lower end, the bottom of the fixing groove 15 is provided with a connecting column 16, the connecting column 16 is provided with a water inlet channel 17 connected with the mounting hole 13, the water inlet channel 17 is inserted with the piston rod 14, and the other end of the piston rod 14 passes through the insertion hole 23 and is connected to the water pumping device 4.

[0048] Specifically, in the present embodiment, the spray head device 1 comprises a head cap 11 and a spray piece 12, the head cap 11 is movably provided in the movable groove 31, a mounting hole 13 is provided on the head cap 11, the spray piece 12 is installed in the mounting hole 13, a fixing groove 15 with an opening at the lower end is provided on the head cap 11, a connecting column 16 is provided at the bottom of the fixing groove 15, a water inlet channel 17 connected with the mounting hole 13 is provided on the connecting column 16, a piston rod 14 is inserted in the water inlet channel 17, a water flow channel connected with the water inlet channel 17 is provided on the piston rod 14, the piston rod 14 passes through the insertion hole 23 and is connected with the pumping device 4 in the second through hole 22, the head cap 11 is movably provided in the movable groove 31, when the head cap 11 is not pressed, the head cap 11 is only partially located in the movable groove 31, when the head cap 11 is pressed, the head cap 11 moves in the movable groove 31 toward the bottom of the movable groove 31. The outer wall of the large cover 3 is provided with external threads, and also includes a transparent cover (not shown in the figure), which is buckled on the outside of the head cap 11 and provided with internal threads, which are connected with the external threads to detachably connect the transparent cover to the large cover 3. The transparent cover is used to prevent dust from blocking the spray piece 12.

[0049] Further, as a preferred embodiment, the pumping device 4 includes a pump body 45 component and a suction pipe, the pump body 45 component is connected to the piston rod 14, and the suction pipe is inserted into the pump body 45 component. The pump body 45 component includes a piston 41, a short spring 42, a long spring 43, a spring seat 44 and a pump body 45, the pump body 45 is inserted into the second through hole 22, the pump body 45 is provided with a connecting hole 451 with an upper end opening, the lower end of the piston rod 14 passes through the insertion hole 23 and is located in the connecting hole 451, the lower end of the piston rod 14 is inserted with the spring seat 44, the connection between the spring seat 44 and the piston rod 14 is sleeved with the piston 41, the position of the piston rod 14 in the connecting hole 451 is provided with a limiting convex ring 141, the short spring 42 is sleeved between the limiting convex ring 141 and the piston 41, and the long spring 43 is sleeved between the spring seat 44 and the bottom wall of the connecting hole 451.

[0050] Furthermore, as a preferred embodiment, the pump body 45 assembly also includes a glass bead 46, a movable groove 452 is provided on the bottom wall of the connecting hole 451, and the glass bead 46 can be movably arranged in the movable groove 452, and a slot 453 is provided on the bottom wall of the movable groove 452, and the straw is inserted in the slot 453.

[0051] Specifically, in the present embodiment, the water pumping device 4 comprises a pump body 45 assembly and a suction pipe (not shown in the figure), the pump body 45 assembly is connected to the piston rod 14, a suction pipe is inserted in the pump body 45 assembly, the pump body 45 assembly comprises a piston 41, a short spring 42, a long spring 43, a spring seat 44, a pump body 45 and a glass bead 46, the pump body 45 is arranged as a cylinder, and the pump body 45 is inserted in the second through hole 22, the upper end of the pump body 45 is provided with a connecting hole 451 with an upper end opening, the pump body 45 is divided into a first part, a second part and a third part which are connected in sequence from top to bottom, and the first part, the second part and the third part are arranged in one piece; the upper halves of the first part and the second part are provided with a connecting hole 451, the lower part of the second part is provided with a moving groove 452, and the third part is provided with a moving groove 453. A slot 453 is provided on the upper part, and the diameters of the first part, the second part and the third part are arranged to decrease in sequence; the connecting hole 451, the movable groove 452 and the slot 453 are interconnected and connected to the water inlet channel 17 to facilitate the flow and spraying of the liquid, and the straw is inserted in the slot 453. After pressing the head cap 11, the internal air pressure is lower than the external air pressure. The liquid in the liquid bottle is pressed into the straw and moves all the way to the water inlet channel 17 and is sprayed out through the spray piece 12. A glass bead 46 is movably arranged in the movable groove 452. The glass bead 46 seals the movable groove 452 when it is not absorbing water, so that water will not enter the movable groove 452. When absorbing water, the glass bead 46 is flushed upward so that it moves in the movable groove 452, so that the sucked water enters the connecting hole 451.

[0052] Specifically, in this embodiment, the other end of the piston rod 14 is inserted into the connecting hole 451, and a spring seat 44 is inserted into the lower end of the piston rod 14. The spring seat 44 is also set in a "convex" shape. The connection between the spring seat 44 and the piston rod 14 is sleeved with a piston 41. The position of the piston rod 14 in the connecting hole 451 (i.e., the middle position of the piston rod 14) is provided with a limiting convex ring 141, and a short spring 42 is sleeved between the limiting convex ring 141 and the upper end surface of the piston 41, and a long spring 43 is sleeved between the lower end surface of the spring seat 44 and the bottom wall of the connecting hole 451. The short spring 42 and the long spring 43 are both used to return all parts to their positions after the pressing of the head cap 11 is completed, and provide a rebound force for their return; the lower half of the piston rod 14, the piston 41, the spring seat 44, the short spring 42 and the long spring 43 are all located in the connecting hole 451 of the first part, and the other part of the long spring 43 is located in the connecting hole 451 of the second part. A fixing groove 21 is provided on the spring seat 44, and a fixing convex ring is provided at the lower end of the piston 41. The fixing convex ring is clamped in the fixing groove 21 to fix and seal the piston 41 and the spring seat 44 so that water will not leak from the connection between the spring seat 44 and the piston rod 14. By changing the air pressure inside and outside the bottle, an air pressure difference is formed, and the liquid is sprayed out through the nozzle. The glass bead 46 is a steel ball, and the glass bead 46 is used to move and control the flow direction of the inverted liquid. When the inverted spray is performed, the glass bead 46 moves to the upper part of the moving groove 452 due to gravity, and the liquid flows from the lower end of the straw to the upper end of the straw into the pump body 45, and then flows upward into the piston rod 14 and the water inlet channel 17.

[0053] Furthermore, as a preferred embodiment, a sealing ring 5 is provided at the upper end of the limiting convex ring 141 .

[0054] Specifically, in this embodiment, a sealing gasket is provided at the upper end of the limiting convex ring 141, and the other end of the sealing gasket abuts against the lower end surface of the plug column, thereby sealing the connection between the piston rod 14 and the plug hole 23. By pressing the head cap 11, a vertical downward force is applied to drive the piston 41, the piston rod 14, the short spring 42 and the spring seat 44 to move downward. After the piston 41 is opened, the liquid will enter the water outlet channel of the piston rod 14 along the gap between the pistons 41, and then enter the water inlet channel 17 of the head cap 11, and finally discharge from the spray piece 12. The connection cover 2 and the large cover 3 of the connection cover 2 are sealed. Since the hole is small, only ventilation can be carried out, and no liquid will flow out when the sprayer is inverted.

[0055] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0056] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A gasket-free self-sealing buckle spray, characterized in that: The invention comprises a nozzle device (1), a connecting cover (2), a large cover (3) and a pumping device (4); the upper end of the large cover (3) is provided with a movable groove (31) with an upper end opening; the nozzle device (1) can be movably arranged in the movable groove (31); the lower end of the large cover (3) is provided with a mounting groove (32) with a lower end opening; the bottom wall of the mounting groove (32) is provided with a convex rib (33); the connecting cover (2) is provided with a groove (21) for inserting the convex rib (33); the convex rib (33) is inserted into the groove (21) of the connecting cover (2 ... The connecting cover (2) and the large cover (3) are sealed in the groove (21); a first through hole (34) is provided on the large cover (3); the first through hole (34) is connected to the movable groove (31) and the mounting groove (32); the connecting cover (2) passes through the first through hole (34) and is partially located in the movable groove (31); a second through hole (22) is provided on the connecting cover (2); the nozzle device (1) and the pumping device (4) are connected in the second through hole (22).

2. The gasket-free self-sealing buckle sprayer according to claim 1, characterized in that: The inner peripheral wall of the installation groove (32) is provided with a convex ridge (35), and the convex ridge (35) is provided with a plurality of bayonet holes (36).

3. The gasket-free self-sealing buckle sprayer according to claim 1, characterized in that: The connection cover (2) is arranged in a "convex" shape, the lower end of the connection cover (2) is provided with the second through hole (22), and the upper end of the connection cover (2) is provided with a plug hole (23) connected to the second through hole (22).

4. The gasket-free self-sealing buckle spray according to claim 3, characterized in that: The spray head device (1) comprises a head cap (11) and a spray piece (12); the head cap (11) is movably arranged in the movable groove (31); a mounting hole (13) is provided on the head cap (11); and the spray piece (12) is installed in the mounting hole (13).

5. The gasket-free self-sealing buckle sprayer according to claim 4, characterized in that: The spray head device (1) also includes a piston rod (14); a fixing groove (15) with an opening at the lower end is provided on the head cap (11); a connecting column (16) is provided at the bottom of the fixing groove (15); a water inlet channel (17) connected to the mounting hole (13) is provided on the connecting column (16); the piston rod (14) is inserted into the water inlet channel (17); the other end of the piston rod (14) passes through the insertion hole (23) and is connected to the water pumping device (4).

6. The gasket-free self-sealing buckle sprayer according to claim 5, characterized in that: The water pumping device (4) comprises a pump body (45) component and a suction pipe. The pump body (45) component is connected to the piston rod (14), and the suction pipe is inserted into the pump body (45) component.

7. The gasket-free self-sealing buckle sprayer according to claim 6, characterized in that: The pump body (45) assembly comprises a piston (41), a short spring (42), a long spring (43), a spring seat (44) and a pump body (45). The pump body (45) is inserted into the second through hole (22). A connecting hole (451) with an upper end opening is provided on the pump body (45). The lower end of the piston rod (14) passes through the inserting hole (23) and is located in the connecting hole (451). The spring seat (44) is inserted into the lower end of the piston rod (14). The piston (41) is sleeved at the connection between the spring seat (44) and the piston rod (14). A limiting convex ring (141) is provided at the position of the piston rod (14) located in the connecting hole (451). The short spring (42) is sleeved between the limiting convex ring (141) and the piston (41). The long spring (43) is sleeved between the spring seat (44) and the bottom wall of the connecting hole (451).

8. The gasket-free self-sealing buckle sprayer according to claim 7, characterized in that: The pump body (45) assembly further comprises a glass bead (46). A movable groove (452) is provided on the bottom wall of the connecting hole (451). The glass bead (46) is movably arranged in the movable groove (452). A slot (453) is provided on the bottom wall of the movable groove (452). The straw is inserted in the slot (453).

9. The gasket-free self-sealing buckle sprayer according to claim 8, characterized in that: A sealing ring (5) is provided at the upper end of the limiting convex ring (141).

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