Emulsion pump head with anti-loosening function

Abstract

The utility model discloses an emulsion pump head with an anti-loosening function, which comprises a support, a pressing part is arranged on the support, a pump head is connected onto the pressing part, a limiting piece is inserted between the pump head and the support in a sliding manner, the limiting piece is made of flexible plastics, and the height of the limiting piece corresponds to the height between the pump head which is not in a pressed state and the support. A connecting port is formed in the limiting piece, a connecting rod is installed at the end, away from the opening, of the limiting piece, the connecting rod is made of rigid plastic, a protective shell is connected to the end, away from the limiting piece, of the connecting rod, an opening is formed in the protective shell, and the opening and the connecting port are located on the same axis. Complex assembly work is not needed in the production process of the device, the production cost is effectively reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pump head technology, and in particular to an emulsion pump head with anti-loosening function. Background Technology

[0002] Most common daily chemical products on the market use pump heads for ease of use. However, traditional lotion pump heads have a separate cap and pump head design, requiring the cap to be removed before pressing the pump. This design makes it easy for the cap and pump head to detach when traveling or carrying the product. When the cap detaches from the lotion pump head, the lotion may spill and contaminate other items due to pressure from other items in the suitcase or bag.

[0003] Utility model CN222035279U relates to the field of cosmetic technology and discloses a lotion pump head with an anti-loosening function. It includes a piston, a threaded column slidably connected to the inner wall of the piston, a first fixing plate fixedly connected to the outer wall of the piston, a first sliding block fixedly connected to the outer wall of the first fixing plate, a first spring fixedly connected to the outer wall of the first sliding block, a fixing column slidably connected to one end of the first spring, and the outer wall of the first spring slidably connected to the inner wall of the piston. A first sliding groove is formed on the outer wall of the threaded column, and a fixing component is provided on the outer wall of the threaded column. In this utility model, by pressing the piston downwards, the fixing column is compressed by the threaded column. Due to the elastic force of the first spring, the fixing column slides into the piston. When it reaches the first sliding groove, the fixing column is rebounded by the first spring and slides into the threaded column, thereby fixing the piston and the threaded column, thus achieving the anti-loosening effect of the lotion pump head.

[0004] The pump head assembly described in the above utility model has too many components, a complex structure, and is difficult to assemble and has a high production cost. Utility Model Content

[0005] The purpose of this utility model is to provide an emulsion pump head with anti-loosening function to solve the problems of high assembly difficulty and high production cost mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an emulsion pump head with anti-loosening function, including a support, a pressing part on the support, a pump head connected to the pressing part, a limiting member slidably inserted between the pump head and the support, the limiting member being made of flexible plastic, and its height corresponding to the height between the pump head and the support when not in the pressing state, the limiting member being provided with a connection port, a connecting rod being installed at the end away from the opening, the connecting rod being made of rigid plastic, a protective shell being connected to the end of the connecting rod away from the limiting member, the protective shell being provided with an opening, the opening and the connection port being on the same axis.

[0007] Preferably, both ends of the opening of the limiting member are equipped with arc-shaped lip plates, the two arc-shaped lip plates are arranged opposite each other, and the ends of the two that are close to each other are inclined outwards towards the limiting member.

[0008] Preferably, the lower inner end of the protective shell is provided with two insert rods, and two slots are opened at the edge of the support, with the two insert rods slidingly fitted into the corresponding slots.

[0009] Preferably, each of the two slots has a slot at the end furthest from the opening, and each of the two inserts has a block at the end furthest from the slot, the size of the block being larger than the size of the slot.

[0010] Preferably, a movable plate is slidably connected to the periphery of the protective shell, and a groove is provided on the movable plate, the groove being at the same horizontal plane as the nozzle on the pump head.

[0011] Preferably, a connecting groove is provided on the outer curved surface of the protective shell, and a connecting block is installed on the inner curved surface of the movable plate, with the connecting block slidably connected in the connecting groove.

[0012] Preferably, a U-shaped snap-fit ​​part is installed in the groove, and an elastic gasket is provided in the U-shaped snap-fit ​​part. The end of the elastic gasket near the opening of the U-shaped snap-fit ​​part is inclined.

[0013] The beneficial effects of this utility model are:

[0014] In this invention, the protective shell is pushed towards the pump head, thereby causing the limiting member to move synchronously until it contacts the pressing part. Under the continuous pushing force, the limiting member deforms, causing it to insert into the pressing part. This limits the distance between the pump head and the pressing part, preventing the emulsion from overflowing due to downward squeezing of the pump head under external force. This design is simple and does not require complex assembly during the production process, effectively reducing production costs and improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an emulsion pump head with anti-loosening function proposed in this utility model;

[0016] Figure 2 This is an exploded structural diagram of an emulsion pump head with anti-loosening function proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the movable plate of an emulsion pump head with anti-loosening function proposed in this utility model;

[0018] Figure 4This is a side cross-sectional view of the protective shell of an emulsion pump head with anti-loosening function proposed in this utility model.

[0019] Figure 5 This is a top view cross-sectional structural diagram of the slot and groove of an emulsion pump head with anti-loosening function proposed in this utility model.

[0020] In the diagram: 1. Support; 2. Pressing part; 3. Pump head; 4. Limiting part; 5. Connecting rod; 6. Protective shell; 7. Opening; 8. Arc-shaped lip plate; 9. Insert rod; 10. Slot; 11. Card slot; 12. Card block; 13. Moving plate; 14. Groove; 15. Connecting groove; 16. Connecting block; 17. U-shaped snap-fit ​​part; 18. Elastic gasket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A lotion pump head with anti-loosening function includes a support 1, a pressing part 2 on the support 1, a pump head 3 connected to the pressing part 2, a limiting member 4 slidably inserted between the pump head 3 and the support 1, the limiting member 4 being made of flexible plastic, and its height corresponding to the height between the pump head 3 and the support 1 when not in the pressing state, the limiting member 4 being provided with a connection port, and a connecting rod 5 being installed at the end away from the opening, the connecting rod 5 being made of rigid plastic, the end of the connecting rod 5 away from the limiting member 4 being connected to a protective shell 6, the protective shell 6 being provided with an opening 7, the opening 7 being on the same axis as the connection port.

[0023] When the pump head 3 on the bottle is not in use, the user can hold the protective shell 6 and push it toward the pump head 3. This causes the limiting member 4 to move synchronously until it contacts the pressing part 2. Under the continuous pushing force, the limiting member 4 deforms, causing it to insert into the pressing part 2. This limits the distance between the pump head 3 and the pressing part 2, preventing the pump head 3 from squeezing downwards under external force and causing the emulsion to overflow. This design is simple and does not require complex assembly during the production process, effectively reducing production costs and improving production efficiency.

[0024] Specifically, in this embodiment, arc-shaped lip plates 8 are installed at both ends of the opening of the limiting member 4. The two arc-shaped lip plates 8 are arranged opposite each other, and the ends of the two that are close to each other are inclined outward of the limiting member 4. This allows the arc-shaped lip plates 8 to contact the pressing part 2 before the limiting member 4 when it approaches the pressing part 2. The arc-shaped design of the arc-shaped lip plates 8 makes it easy for the two ends of the limiting member 4 to open outward under the action of the thrust, thus making it easy for the limiting member 4 to be inserted into the pressing part 2.

[0025] Specifically, in this embodiment, the lower inner end of the protective shell 6 is provided with two insert rods 9, and the edge of the support 1 is provided with two slots 10. The two insert rods 9 slide and fit into the corresponding slots 10, so that the protective shell 6 can slide and connect to the support 1 through the fit between the insert rods 9 and the slots 10. Thus, the sliding connection between the protective shell 6 and the support 1 provides guidance for the movement direction of the protective shell 6, so that when the protective shell 6 moves, it can drive the limiting member 4 to be accurately inserted into the pressing part 2.

[0026] Specifically, in this embodiment, each of the two slots 10 is provided with a slot 11 at the end away from the opening 7, and each of the two rods 9 is provided with a block 12 at the end away from the slot 11. The size of the block 12 is larger than the size of the slot 11, so that the rods 9 can be engaged in the slots 10 by the size configuration of the block 12 and the slot 11. This ensures that the protective shell 6 is always connected to the support 1 under the action of the rods 9 and the slots 10, thereby preventing the protective shell 6 and the limiting member 4 from being lost.

[0027] Specifically, in this embodiment, a movable plate 13 is slidably connected to the periphery of the protective shell 6. A groove 14 is provided on the movable plate 13. The groove 14 is on the same horizontal plane as the nozzle on the pump head 3, so that the user can push the movable plate 13 to rotate along the periphery of the protective shell 6, thereby completely covering the opening 7. The groove 14 provides a space for the nozzle on the pump head 3, thereby completely sealing the protective shell 6 and preventing foreign objects from entering the protective shell 6.

[0028] Specifically, in this embodiment, a connecting groove 15 is provided on the outer curved surface of the protective shell 6, and a connecting block 16 is installed on the inner curved surface of the movable plate 13. The connecting block 16 is slidably connected in the connecting groove 15, so that the movable plate 13 can be slidably connected to the protective shell 6 through the compatibility of the connecting groove 15 and the connecting block 16, thereby facilitating the movement of the movable plate 13, and providing a guiding function for the movable plate 13 through the connecting groove 15, so as to achieve precise coverage of the movable plate 13 on the opening 7.

[0029] Specifically, in this embodiment, a U-shaped snap-fit ​​part 17 is installed in the groove 14, and an elastic gasket 18 is provided in the U-shaped snap-fit ​​part 17. The end of the elastic gasket 18 near the opening of the U-shaped snap-fit ​​part 17 is inclined, so that when the moving plate 13 moves, the nozzle on the pump head 3 will contact the U-shaped snap-fit ​​part 17 at an appropriate position, and the nozzle will be blocked by the elastic gasket 18 to prevent the emulsion from leaking out. At the same time, the elastic force of the elastic gasket 18 limits the position between the nozzle and the moving plate 13, thereby preventing the position of the moving plate 13 from shifting.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A lotion pump head with anti-loosening function, comprising a support (1), a pressing part (2) is arranged on the support (1), and a pump head (3) is connected to the pressing part (2), characterized in that: A limiting member (4) is slidably inserted between the pump head (3) and the support (1). The limiting member (4) is made of flexible plastic, and its height corresponds to the height between the pump head (3) and the support (1) when it is not in a pressed state. A connection port is provided on the limiting member (4), and a connecting rod (5) is installed at the end away from the opening. The connecting rod (5) is made of rigid plastic, and a protective shell (6) is connected to the end of the connecting rod (5) away from the limiting member (4). An opening (7) is provided on the protective shell (6), and the opening (7) and the connection port are on the same axis.

2. The emulsion pump head with anti-loosening function according to claim 1, characterized in that: Both ends of the opening of the limiting member (4) are equipped with arc-shaped lip plates (8), the two arc-shaped lip plates (8) are arranged opposite each other, and the ends of the two that are close to each other are inclined to the outside of the limiting member (4).

3. The emulsion pump head with anti-loosening function according to claim 1, characterized in that: The lower interior of the protective shell (6) is provided with two insert rods (9), and two slots (10) are opened at the edge of the support (1). The two insert rods (9) slide and fit into the corresponding slots (10).

4. The emulsion pump head with anti-loosening function according to claim 3, characterized in that: Both slots (10) are provided with a slot (11) at the end away from the opening (7), and the two inserts (9) are provided with a block (12) at the end away from the slot (11). The size of the block (12) is larger than the size of the slot (11).

5. The emulsion pump head with anti-loosening function according to claim 1, characterized in that: The protective shell (6) is slidably connected to a movable plate (13), and a groove (14) is provided on the movable plate (13). The groove (14) and the nozzle on the pump head (3) are on the same horizontal plane.

6. The emulsion pump head with anti-loosening function according to claim 1, characterized in that: A connecting groove (15) is provided on the outer curved surface of the protective shell (6), and a connecting block (16) is installed on the inner curved surface of the movable plate (13). The connecting block (16) is slidably connected in the connecting groove (15).

7. The emulsion pump head with anti-loosening function according to claim 5, characterized in that: A U-shaped snap-fit ​​part (17) is installed in the groove (14), and an elastic gasket (18) is provided in the U-shaped snap-fit ​​part (17). The end of the elastic gasket (18) near the opening of the U-shaped snap-fit ​​part (17) is inclined.

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