A plastic spring

Abstract

The utility model provides a kind of plastic spring, including first support body and second support body being arranged oppositely and interval and first helix and second helix being arranged interval and being arranged between the first support body and second support body, the first support body, the second support body, the first helix and the second helix have same central axis;One end of the first helix and the second helix is fixedly connected with the first support body, the other end of the first helix and the second helix is fixedly connected with the second support body;Multiple arcuate ribs are connected between the first helix and the second helix, multiple arcuate ribs are arranged interval along helical direction, and the arcuate rib is used to make the compression amount of the plastic spring larger;The utility model provides a kind of plastic spring, overcome the defect that the compression amount of spring is smaller due to the connecting body of straight bar shape of existing plastic spring.

Description

Technical Field

[0001] This utility model relates to the field of spring technology, specifically to a plastic spring. Background Technology

[0002] Springs are a crucial component of emulsion pumps, and their elasticity, fatigue cycles, and other fundamental parameters directly affect the pump's performance. These springs are typically made of metal. In some applications, the spring is positioned in contact with the contents, which can lead to rust or breakage, contaminating the contents. Alternatively, rust or breakage can create resistance, preventing the contents from draining smoothly, necessitating structural improvements. Therefore, plastic springs are now commonly used instead of metal springs.

[0003] For example, CN216200048U discloses a plastic spring (see paragraph 30 of its specification). To further improve the strength and stability of the plastic spring, as shown in Figures 7 to 12, in each pitch, the helical body is provided with two connecting bodies that are equally spaced around the central axis L and are rotationally symmetrical to each other. The connecting bodies extend from the upper surface of the first helical part of one helical body and spiral upwards along the helical direction of the helical body to connect to the lower surface of the tail helical part of the other helical body. In the above structure, due to the use of straight connecting bodies, the compression of the plastic spring is relatively small, the stroke of the pump body's pressing head is reduced, resulting in a deterioration in the performance of the emulsion pump, which requires improvement. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of this, the present invention provides a plastic spring that overcomes the defect of existing plastic springs having a small spring compression due to the use of a straight connecting body.

[0006] (II) Technical Solution

[0007] To solve the aforementioned technical problem, this utility model provides a plastic spring, comprising a first support body and a second support body arranged opposite to and spaced apart from each other, and a first spiral body and a second spiral body arranged spaced apart between the first support body and the second support body. The first support body, the second support body, the first spiral body, and the second spiral body have the same central axis. One end of the first spiral body and the second spiral body are fixedly connected to the first support body, and the other end of the first spiral body and the second spiral body are fixedly connected to the second support body. A plurality of arched ribs are connected between the first spiral body and the second spiral body, and the plurality of arched ribs are arranged spaced apart along the spiral direction. The arched ribs are used to increase the compression of the plastic spring.

[0008] In some embodiments, the arched rib includes a first arc-shaped portion, a second arc-shaped portion, and a third arc-shaped portion that are smoothly connected, the first arc-shaped portion being connected to the first spiral body, and the third arc-shaped portion being connected to the second spiral body.

[0009] In some embodiments, the first arcuate portion and the third arcuate portion protrude toward the same side, and the second arcuate portion protrudes toward the other side.

[0010] In some embodiments, the radius of curvature of the second arcuate portion is smaller than that of the first arcuate portion and the third arcuate portion.

[0011] In some embodiments, the first helix includes a plurality of first helical segments connected end to end, and the second helix includes a plurality of second helical segments connected end to end. The plurality of first helical segments and the plurality of second helical segments are arranged in a one-to-one correspondence, and the arched ribs are connected between the opposing first helical segments and second helical segments.

[0012] In some embodiments, the first helical segment includes a first helical segment and a first arcuate platform with one end connected to the first helical segment; the second helical segment includes a second helical segment and a second arcuate platform with one end connected to the second helical segment, one end of the arched rib is connected to the end of the second arcuate platform away from the second helical segment, and the other end of the arched rib is connected to the first helical segment.

[0013] In some embodiments, the arched ribs are inclined and arranged at an angle to the first spiral segment.

[0014] In some embodiments, the first helical segment and the second helical segment are arranged intersecting in space; the first arcuate platform and the second arcuate platform are both arranged horizontally and located at the same horizontal height.

[0015] In some embodiments, the first support and the second support have the same structure and are both toroidal.

[0016] In some embodiments, the first helix and the second helix have the same structure and are rotationally symmetric to each other.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least:

[0019] 1) This plastic spring has multiple arched ribs arranged at intervals along the spiral direction between the first and second spiral bodies. Compared with existing plastic springs that use straight bar-shaped connecting bodies, the unique structure of the arched ribs can effectively increase the compression amount through its own elastic deformation when the spring is compressed. The greater compression amount means that the stroke of the pump body's pressing head can be increased, thereby improving the performance of the emulsion pump and avoiding the performance degradation problem caused by the small spring compression amount.

[0020] 2) The arched rib is composed of a first arc-shaped part, a second arc-shaped part, and a third arc-shaped part that are smoothly connected. The first and third arc-shaped parts protrude towards the same side, while the second arc-shaped part protrudes towards the other side. At the same time, the radius of curvature of the second arc-shaped part is smaller than that of the first and third arc-shaped parts. This design allows the arched rib to deform more flexibly and easily when subjected to force, increasing the extensibility of the spring and helping the spring to obtain a greater amount of compression. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of a plastic spring according to this utility model;

[0023] Figure 2 This is a structural schematic diagram of a plastic spring according to the present invention;

[0024] Figure 3 This is a perspective view of the connection between the first helical joint, the second helical joint, and the arched rib in a plastic spring according to this utility model;

[0025] Figure 4 This is a schematic diagram of the connection between the first helical joint, the second helical joint, and the arched rib in a plastic spring according to this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the first and second helical joints in a plastic spring according to this utility model;

[0027] The component names corresponding to the various reference numerals in the figure are as follows: 1. First support body; 2. Second support body; 3. First helical body; 31. First helical joint; 311. First helical segment; 312. First arc-shaped platform; 4. Second helical body; 41. Second helical joint; 411. Second helical segment; 412. Second arc-shaped platform; 5. Arched rib; 501. First arc-shaped part; 502. Second arc-shaped part; 503. Third arc-shaped part. Detailed Implementation

[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0029] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one 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 aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0031] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0032] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0033] Combination Figures 1-5As shown, this utility model provides a plastic spring, including a first support body 1 and a second support body 2 arranged opposite to and spaced apart, and a first helical body 3 and a second helical body 4 arranged between the first support body 1 and the second support body 2 and spaced apart. The first support body 1, the second support body 2, the first helical body 3, and the second helical body 4 have the same central axis. One end of the first helical body 3 and the second helical body 4 are fixedly connected to the first support body 1, and the other end of the first helical body 3 and the second helical body 4 are fixedly connected to the second support body 2. That is, the lower end of the first helical body 3 and the second helical body 4 are connected to the first support body 1, and the other end of both extend spirally around the central axis and is connected to the second support body 2. A plurality of arched ribs 5 are connected between the first helical body 3 and the second helical body 4. The plurality of arched ribs 5 are arranged at intervals along the spiral direction. The arched ribs 5 are used to increase the compression of the plastic spring. The first support body 1, the second support body 2, the first helical body 3, the second helical body 4, and the arched ribs 5 are integral plastic parts.

[0034] This structure features multiple arched ribs spaced apart along the spiral direction between the first and second spiral bodies. Compared to existing plastic springs with straight connecting bodies, the unique structure of the arched ribs allows the spring to effectively increase the compression amount through its own elastic deformation when compressed. The greater compression amount means that the stroke of the pump body's pressing head can be increased, thereby improving the performance of the emulsion pump and avoiding the performance degradation caused by insufficient spring compression.

[0035] In some embodiments, such as Figure 3 and Figure 5 As shown, the arched rib 5 includes a first arc-shaped portion 501, a second arc-shaped portion 502, and a third arc-shaped portion 503 that are smoothly connected. The first arc-shaped portion 501 connects to the first helical body 3, and the third arc-shaped portion 503 connects to the second helical body 4. The first arc-shaped portion 501 and the third arc-shaped portion 503 protrude towards the same side, while the second arc-shaped portion 502 protrudes towards the other side. The radius of curvature of the second arc-shaped portion 502 is smaller than that of the first arc-shaped portion 501 and the third arc-shaped portion 503. This structure allows the arched rib to deform more flexibly and easily under stress, increasing the spring's extensibility and helping the spring achieve a greater compression.

[0036] In some embodiments, such as Figure 3 and Figure 5As shown, the first helix 3 includes multiple first helical segments 31 connected end-to-end. The first helical segment 31 at the bottom is connected to the first support body 1, and the first helical segment 31 at the top is connected to the second support body 2 via a first connecting section. The second helix 4 includes multiple second helical segments 41 connected end-to-end. The second helical segment 41 at the bottom is connected to the first support body 1, and the second helical segment 41 at the top is connected to the second support body 2 via a second connecting section. The multiple first helical segments 31 and multiple second helical segments 41 are arranged in a one-to-one correspondence, and arched ribs 5 connect the opposing first helical segments 31 and second helical segments 41.

[0037] In some embodiments, such as Figure 3 and Figure 5 As shown, the first helical section 31 includes a first helical segment 311 and a first arcuate platform 312 connected to the first helical segment 311 at one end; the second helical section 41 includes a second helical segment 411 and a second arcuate platform 412 connected to the second helical segment 411 at one end. One end of the arched rib 5 is connected to the end of the second arcuate platform 412 away from the second helical segment 411, and the other end of the arched rib 5 is connected to the first helical segment 311. The connection position of the arched rib 5 can be adjusted appropriately according to actual needs.

[0038] In some embodiments, such as Figure 3 and Figure 4 As shown, the arched rib 5 is inclined and arranged at an angle (A°) with the first spiral segment 311. The specific value of A will affect the compression performance, and the value of A can be adjusted according to the actual situation.

[0039] In some embodiments, such as Figure 3 and Figure 5 As shown, the first helical segment 311 and the second helical segment 411 are arranged intersecting in space; the first arc-shaped platform 312 and the second arc-shaped platform 412 are both arranged horizontally and at the same horizontal height.

[0040] In some embodiments, such as Figure 1 As shown, the first support 1 and the second support 2 have the same structure and are both rings. The first support 1 is arranged on the lower side of the second support 2.

[0041] In some embodiments, such as Figure 1 and Figure 2 As shown, the first helix 3 and the second helix 4 have the same structure and are rotationally symmetric to each other; that is, if one of the helixes rotates 180 degrees around the central axis, it will completely overlap with the other helix.

[0042] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0043] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A plastic spring, characterized in that: The device includes a first support (1) and a second support (2) arranged opposite to and spaced apart, and a first spiral (3) and a second spiral (4) arranged between and spaced apart from the first support (1) and the second support (2). The first support (1), the second support (2), the first spiral (3) and the second spiral (4) have the same central axis. One end of the first spiral (3) and the second spiral (4) are fixedly connected to the first support (1), and the other end of the first spiral (3) and the second spiral (4) are fixedly connected to the second support (2). A plurality of arched ribs (5) are connected between the first spiral (3) and the second spiral (4). The plurality of arched ribs (5) are arranged spaced apart along the spiral direction. The arched ribs (5) are used to increase the compression of the plastic spring.

2. The plastic spring according to claim 1, characterized in that: The arched rib (5) includes a first arc-shaped part (501), a second arc-shaped part (502) and a third arc-shaped part (503) that are smoothly connected. The first arc-shaped part (501) is connected to the first spiral body (3) and the third arc-shaped part (503) is connected to the second spiral body (4).

3. The plastic spring according to claim 2, characterized in that: The first arc-shaped portion (501) and the third arc-shaped portion (503) protrude toward the same side, while the second arc-shaped portion (502) protrudes toward the other side.

4. The plastic spring according to claim 2, characterized in that: The radius of curvature of the second arc-shaped portion (502) is smaller than that of the first arc-shaped portion (501) and the third arc-shaped portion (503).

5. The plastic spring according to claim 1, characterized in that: The first spiral (3) includes multiple first spiral sections (31) connected end to end, and the second spiral (4) includes multiple second spiral sections (41) connected end to end. The multiple first spiral sections (31) and multiple second spiral sections (41) are arranged in a one-to-one correspondence, and the arched rib (5) is connected between the opposite first spiral section (31) and second spiral section (41).

6. The plastic spring according to claim 5, characterized in that: The first helical segment (31) includes a first helical segment (311) and a first arcuate platform (312) connected to the first helical segment (311) at one end; the second helical segment (41) includes a second helical segment (411) and a second arcuate platform (412) connected to the second helical segment (411) at one end, one end of the arched rib (5) is connected to the end of the second arcuate platform (412) away from the second helical segment (411), and the other end of the arched rib (5) is connected to the first helical segment (311).

7. The plastic spring according to claim 6, characterized in that: The arched rib (5) is inclined and arranged at an angle to the first spiral segment (311).

8. The plastic spring according to claim 6, characterized in that: The first spiral segment (311) and the second spiral segment (411) are arranged intersecting in space; the first arc-shaped platform (312) and the second arc-shaped platform (412) are both arranged horizontally and at the same horizontal height.

9. The plastic spring according to claim 1, characterized in that: The first support (1) and the second support (2) have the same structure and are both ring-shaped.

10. The plastic spring according to claim 1, characterized in that: The first helical body (3) and the second helical body (4) have the same structure and are rotationally symmetric to each other.

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