Pump head paper-plastic sheath

Abstract

The utility model relates to a paper-plastic sheath for a pump head. Comprising an inner side wall and an outer side wall; the inner side wall is in a surrounding shape extending around a lock cover of the pump head and is provided with a hollow part used for containing the lock cover of the pump head, and an inner side notch communicated with the hollow part is formed in the inner side wall. The outer side wall is located on the outer side of the inner side wall, the outer side wall is in a surrounding shape extending around the inner side wall, and an outer side notch is formed in the outer side wall; the outer side notch and the inner side notch are communicated to form an access channel for the lock cover of the pump head to enter and exit the hollow part; a plurality of web plates which are distributed at intervals in the extending direction of the inner side wall are arranged between the outer side wall and the inner side wall; the webs stretch across the outer side wall and the inner side wall and are fixedly connected with the outer side wall and the inner side wall at the same time. The inner side wall and the outer side wall form a double-layer protection structure, the outer side wall and the inner side wall can be connected together through the web, the overall strength can be improved, the effect of buffering impact force can be achieved when the outer side wall bears impact, and the effect of protecting the pump head is improved.

Description

Technical Field

[0001] This utility model relates to a paper-plastic protective sleeve for a pump head. Background Technology

[0002] Chinese utility model patent specification CN 211002661 U discloses a protective structure for the express delivery of pump heads for daily chemical plastic bottles. This structure uses a protective liner wrapped around the pump head to protect it. The liner is made of a single layer of corrugated cardboard folded into a wraparound shape extending around the pump head. Its single-layer structure results in low strength and the protective effect needs improvement. Utility Model Content

[0003] The purpose of this utility model is to provide a paper-plastic sleeve for a pump head, used to cover the outside of a pump head; it includes an inner wall and an outer wall spaced apart; the inner wall is in a surrounding shape extending around the locking cover of the pump head and has a hollow portion for receiving the locking cover of the pump head, and the inner wall has an inner notch communicating with the hollow portion; the outer wall is located outside the inner wall and is in a surrounding shape extending around the inner wall, and the outer wall has an outer notch; the outer notch and the inner notch communicate to form an access channel for the locking cover of the pump head to enter and exit the hollow portion; multiple webs are provided between the outer wall and the inner wall, spaced apart in the extension direction of the inner wall; each web spans between the outer wall and the inner wall, and each web is fixedly connected to both the outer wall and the inner wall.

[0004] The present invention employs a double-layer protective structure consisting of inner and outer side walls. The web plate can connect the outer side wall and the inner side wall together, which not only increases the overall strength, but also buffers the impact force when the outer side wall is subjected to impact, thus improving the protection of the pump head. Attached Figure Description

[0005] Figure 1 and Figure 2 Two perspective views of this utility model from different angles are shown respectively;

[0006] Figure 3 A top view of the present invention is shown;

[0007] Figure 4 It shows Figure 3 AA section view;

[0008] Figure 5 It shows Figure 3 BB section view;

[0009] Figure 6 and Figure 7 Two perspective views of the present invention fitted behind the pump head at different angles are shown respectively;

[0010] Figure 8This shows a top view of the present invention fitted behind the pump head;

[0011] Figure 9 It shows Figure 8 CC section view;

[0012] Figure 10 A schematic diagram is shown after separating the present invention from the pump head based on 6.

[0013] Icon labels:

[0014] 10. Pump head paper-plastic sheath;

[0015] The lock cover of pump head 20, pump head 201, and the inherent fault of pump head 202;

[0016] 30 Inner wall, 301 Hollow part, 302 Inner notch, 303 Top of inner wall, 304 Bottom of inner wall, h Width of inner notch;

[0017] 40 Outer wall, 401 Outer notch, 402 Top of outer wall, 403 Bottom of outer wall;

[0018] 50 entrance and exit channels;

[0019] 60 Web, 601 Vertical protrusion;

[0020] 70 bottom wall;

[0021] 80 end wall. Detailed Implementation

[0022] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution.

[0023] like Figures 1 to 3 shown

[0024] A paper-plastic sheath 10 for a pump head is used to cover the outside of a pump head 20, and includes an inner sidewall 30 and an outer sidewall 40 spaced apart from each other.

[0025] The inner wall 30 extends around the lock cover 201 of the pump head and has a hollow portion 301 for accommodating the lock cover 201 of the pump head, and the inner wall 40 has an inner notch 302 communicating with the hollow portion 301.

[0026] The outer side wall 40 is located outside the inner side wall 30, and the outer side wall 40 is in a surrounding shape extending around the inner side wall 30. The outer side wall 40 has an outer notch 401.

[0027] The outer notch 401 and the inner notch 302 are connected to form an inlet and outlet channel 50 for the pump head lock cover 201 to enter and exit the hollow part 301;

[0028] Between the outer side wall 40 and the inner side wall 30, there are multiple web plates 60 that are spaced apart along the extension direction of the inner side wall 30. In this embodiment, the figure shows that there are six web plates 60. The extension direction of the inner side wall is the circumferential direction of the inner side wall.

[0029] Each web plate 60 spans between the outer side wall 40 and the inner side wall 30, and each web plate 30 is fixedly connected to both the outer side wall 40 and the inner side wall 30.

[0030] The technical solution uses an inner and outer wall to form a double-layer protective structure. The web plate can connect the outer wall and the inner wall together, which can not only increase the overall strength, but also buffer the impact force when the outer wall is subjected to impact, thus improving the protection of the pump head.

[0031] The top 303 of the inner sidewall is below the pump nozzle 202 of the pump head when the locking cover 201 of the pump head enters the hollow part 301, so that the pump nozzle 202 of the pump head extends beyond the top 303 of the inner sidewall to the outer sidewall 40.

[0032] The top 402 of the outer side wall is higher than the top 303 of the inner side wall, and the top 402 of the outer side wall is higher than the pump nozzle 202 of the pump head when the locking cover 201 of the pump head enters the hollow part 301 and is located above the pump nozzle 202 of the pump head.

[0033] This technical solution provides protection by setting the top of the outer wall to be higher than the pump head, thereby allowing the top of the outer wall to preferentially withstand impacts from above.

[0034] Each web 60 extends upward from the side near the outer wall 40 to the top 402 of the outer wall to form a vertical protrusion 601, which is higher than the top 303 of the inner wall.

[0035] The technical solution provides a vertical protrusion on the side of the web near the outer wall. This can improve the strength of the outer wall, especially the strength of the part of the outer wall that is higher than the inner wall. On the other hand, the vertical protrusion is located on the side of the web near the outer wall to avoid the vertical protrusion blocking the pump nozzle of the pump head.

[0036] The inner wall 30, the outer wall 40, and all the webs 60 are integrally formed from paper and plastic.

[0037] A bottom wall 70 is connected between the bottom 403 of the outer side wall and the bottom 304 of the inner side wall, and the bottom of each web plate 60 is fixedly connected to the bottom wall 70.

[0038] The access passage 50 is provided with end walls 80 on both sides, connecting the inner wall 30 and the outer wall 40.

[0039] The bottom wall 70 and the two end walls 80, along with the inner side wall 30, the outer side wall 40, and all the web plates 60, are all integrally formed from paper and plastic.

[0040] The width h of the inner notch is smaller than the diameter of the pump head's locking cover so that the pump head's locking cover 201 is stuck inside the hollow part 301 after entering through the inner notch 302, thereby reducing the risk of the pump head's paper-plastic sheath accidentally falling off.

[0041] The pump head paper-plastic sheath 10 is C-shaped.

[0042] Of course, the shape of the pump head paper-plastic sheath is not limited to C-shape; for example, it can be U-shaped or other shapes.

Claims

1. A paper-plastic sheath for a pump head, used to cover the outside of a pump head, characterized in that: Including the spaced-apart inner and outer sidewalls; The inner wall is in a surrounding shape extending around the lock cover of the pump head and has a hollow portion for accommodating the lock cover of the pump head, and the inner wall has an inner notch communicating with the hollow portion. The outer side wall is located outside the inner side wall, and the outer side wall is in a surrounding shape extending around the inner side wall, with an outer notch. The outer notch connects with the inner notch to form an inlet / outlet channel for the pump head's locking cover to enter and exit the hollow part; Multiple web plates are provided between the outer and inner walls, spaced apart along the extension direction of the inner wall. Each web spans between the outer and inner walls, and each web is fixedly connected to both the outer and inner walls.

2. The pump head paper-plastic sheath according to claim 1, characterized in that: The top of the inner wall is below the pump nozzle of the pump head when the locking cover of the pump head enters the hollow part, so that the pump nozzle of the pump head extends beyond the top of the inner wall to the outer wall. The top of the outer side wall is higher than the top of the inner side wall, and the top of the outer side wall is above the pump nozzle of the pump head when the lock cover of the pump head enters the hollow part.

3. The pump head paper-plastic sheath according to claim 2, characterized in that: Each web extends upwards from the side closest to the outer wall to the top of the outer wall to form a vertical protrusion, which is higher than the top of the inner wall.

4. The pump head paper-plastic sheath according to any one of claims 1 to 3, characterized in that: The inner and outer walls, as well as all the webs, are integrally molded from paper and plastic.

5. The pump head paper-plastic sheath according to claim 4, characterized in that: A bottom wall connects the bottom of the outer side wall to the bottom of the inner side wall, and the bottom of each web plate is fixedly connected to the bottom wall. The entrance and exit passage is provided with end walls on both sides, connecting the inner side wall and the outer side wall; The bottom wall, both end walls, inner side walls, outer side walls, and all webs are all integrally formed from paper and plastic.

6. The pump head paper-plastic sheath according to any one of claims 1 to 3, characterized in that: The width of the inner notch is smaller than the diameter of the pump head's locking cover so that the pump head's locking cover can be stuck inside the hollow part after entering the hollow part through the inner notch.

7. The pump head paper-plastic sheath according to any one of claims 1 to 3, characterized in that: The pump head's paper-plastic sheath is C-shaped.

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