Tension spring with limiting structure and oxygen generator
By introducing a limiting structure into the tension spring, the problem of the tension spring not being able to effectively restrict movement is solved, thus achieving safe movement of objects and a compact structure for the oxygen generator, while reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YUYUE MEDICAL EQUIP&SUPPLY CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-28
AI Technical Summary
The existing tension springs lack a limiting structure, which means that the connected objects cannot be effectively restrained during movement, making them prone to collisions with surrounding structures, causing damage and increasing maintenance costs.
Design a tension spring with a limiting structure, including a support section, a tension spring body, a fixed section, and a limiting structure. The limiting structure restricts the maximum tensile length of the tension spring to prevent objects from colliding with other structures.
It effectively limits the movement range of objects, avoids collision damage, reduces the need for additional limiting structures, lowers the maintenance cost of oxygen concentrators, and improves the compactness of the internal structure.
Smart Images
Figure CN224174457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tension spring technology, specifically to a tension spring with a limiting structure and an oxygen generator. Background Technology
[0002] Tension springs (also called tension springs, or simply tension springs) are common mechanical parts with wide applications in many fields. They are typically made of circular cross-section material, and when not under load, the coils are tightly packed together with no gaps. This structural design allows them to store and release energy through their elastic deformation when subjected to axial tensile force, thereby achieving various mechanical functions, such as resetting, buffering, and providing tension in some mechanical devices.
[0003] However, most tension springs on the market currently lack limiting structures. This deficiency means that in actual use, the range of movement of objects connected to the tension spring cannot be effectively limited, making them highly susceptible to collisions with other surrounding structures.
[0004] See Figure 5 Taking oxygen concentrator 2 as an example, in its internal structure, tension spring 1 is often used to connect components such as compressor 3. During operation, the compressor may move up and down under the action of the tension spring. However, since the tension spring lacks a limiting structure, the compressor may move excessively downwards without restriction, directly colliding with other critical internal structures of the oxygen concentrator, such as gas pipes and sensors. This collision not only damages the compressor itself, causing a decrease in its performance or even preventing it from working properly, but also damages other internal structures that are collided with, shortening the lifespan of the oxygen concentrator and increasing equipment maintenance costs.
[0005] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content
[0006] The purpose of this invention is to provide a tension spring with a limiting structure and an oxygen generator.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A tension spring with a limiting structure includes a support segment, a tension spring body, and a fixing segment connected sequentially along a first direction.
[0009] It also includes a limiting structure, which is parallel to the first direction and has a limiting end, which is located on the extension line of the support segment and serves as a component for limiting the stretching range of the tension spring body.
[0010] The limiting structure is simple in structure and easy to process.
[0011] One specific way of using a tension spring is as follows: the support section is connected to the object, and the fixed section is fixed to the support structure such as the support plate; the object moves the support section downward under the action of gravity, so that the tension spring body is gradually stretched; when the tension spring body extends to the predetermined length, the limiting structure (specifically the limiting end) prevents the object and the support section from moving further downward, and the tension spring body stops extending.
[0012] In other specific applications of tension springs, the fixed section is connected to the object, and the supporting section is fixed to the supporting structure such as the support plate. There are various ways to use them, and all of them can enable the limiting structure to perform the limiting function.
[0013] In the above solution, by setting the limiting structure, the extension of the tension spring body can be restricted in advance before it is stretched to its maximum length, thereby limiting the downward movement range of the object and preventing the object from being damaged by collision with other objects.
[0014] By using a limiting structure, when this application is used in devices such as oxygen concentrators, it is possible to avoid adding additional limiting structures. Taking the connection between the support section and the compressor in the oxygen concentrator as an example, it is not necessary to set an additional limiting structure inside the oxygen concentrator to prevent the compressor from colliding with other structures, thus reducing structural costs and facilitating the achievement of the compact internal structure requirements of the oxygen concentrator.
[0015] Continuing with the application of this application to an oxygen concentrator, the limiting structure restricts the range of movement of the compressor during movement, preventing the compressor from colliding with other structures, thereby preventing damage to the oxygen concentrator, ensuring its service life, and avoiding increased equipment maintenance costs.
[0016] It should be noted that the support section, the tension spring body, and the fixing section are existing structures. This application does not change the basic working principle of the tension spring, such as the stretchable and retractable characteristics of the tension spring body. However, some specific settings of these three components are adjusted in some embodiments.
[0017] In a further technical solution, the supporting section has the same structure as the fixed section;
[0018] In the first direction, the support segment and the fixed segment are arranged symmetrically.
[0019] The supporting section and the fixed section have the same structure. Based on this, only one specification of structure needs to be processed, which reduces the cost of processing equipment.
[0020] The support and fixed sections are symmetrically arranged, which improves the aesthetics of the tension spring by constraining their relative positions. In addition, during the processing of the tension spring, it is possible to avoid the need to adjust the position of the corresponding fixing device, thereby increasing the processing speed.
[0021] In a further technical solution, in the second direction, the dimensions of both the support segment and the fixed segment are smaller than or equal to the dimensions of the tension spring body;
[0022] The second direction is perpendicular to the first direction and the length direction of the support segment.
[0023] In this embodiment, the support section and the fixed section can be considered to be relatively small in size.
[0024] This embodiment limits the relative dimensions of the support section, the fixing section, and the tension spring body, preventing the support section and the fixing section from protruding relative to the tension spring body in the second direction, thereby avoiding increasing the space occupied by the tension spring in the second direction and further improving the aesthetics of the tension spring; in addition, because the support section and the fixing section are small in size, the structural cost is also reduced.
[0025] In a further technical solution, in the second direction, the dimensions of the support segment, the tension spring body, and the fixing segment are all greater than or equal to the dimensions of the limiting structure;
[0026] The second direction is perpendicular to the first direction and the length direction of the support segment.
[0027] This embodiment limits the relative dimensions of the support section, the fixed section, the tension spring body, and the limiting structure. It can be considered that the size of the limiting structure is smaller, which reduces the structural cost of the tension spring while satisfying the limiting function.
[0028] In a further technical solution, the tension spring body is sleeved on the outside of the limiting structure.
[0029] This embodiment further restricts the relative size of the tension spring body and the limiting structure. By making a portion of the tension spring body and a portion of the limiting structure occupy the same space, the size of the tension spring is further reduced, allowing the tension spring to be used in a smaller space and improving the applicability of the tension spring.
[0030] In a further technical solution, the axis of the limiting structure and the axis of the tension spring body are in the same plane.
[0031] The design in this embodiment can further improve the aesthetics of the tension spring.
[0032] Here, we take a limiting structure with a first end and a second end as an example, as follows: In one case, the first end is close to the support section, and the second end is connected to the fixed section; the first end is provided with a limiting ring; when the support section contacts the end of the limiting ring wall that is far from the second end, it is limited, which requires a part of the support section to be inserted into the inner side of the limiting ring; by setting the axis of the limiting structure and the axis of the tension spring body to be in the same plane, it can be regarded as the limiting structure and the tension spring body being centered, which facilitates the insertion of a part of the support section into the inner side of the limiting ring, and provides convenience for adjusting the position of the support section according to actual needs.
[0033] In a further technical solution, the support section, the tension spring body, and the fixing section are integrally formed.
[0034] The one-piece molding design improves the structural strength of the tension spring, thereby increasing its service life. It also expands the spring's applicability by making it suitable for heavy objects.
[0035] In a further technical solution, the other end of the limiting structure (arranged parallel to the limiting end in the first direction) is fixedly connected to the end of the tension spring body away from the limiting end or the fixed segment.
[0036] The limiting structure offers diverse connection positions, allowing for adjustments based on actual needs and expanding the applicability of the tension spring.
[0037] An oxygen generator is also provided herein, comprising a compressor, a housing, and a tension spring as described in any of the above embodiments, wherein a support section or a fixing section of the tension spring is connected to the compressor.
[0038] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.
[0039] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.
[0040] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.
[0041] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing this case.
[0042] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.
[0043] The working principle and advantages of this utility model are as follows:
[0044] One specific way to use a tension spring is as follows: the support section is connected to the object, and the fixed section is fixed to the support structure such as the support plate; the object moves the support section downward under the action of gravity, so that the tension spring body is gradually stretched; when the tension spring body extends to the predetermined length, the limiting structure prevents the object and the support section from moving further downward, and the tension spring body stops extending.
[0045] In other specific applications of tension springs, the fixed section is connected to the object, and the supporting section is fixed to the supporting structure such as the support plate. There are various ways to use them, and all of them can enable the limiting structure to perform the limiting function.
[0046] By setting a limiting structure, the extension of the tension spring can be restricted before it is stretched to its maximum length, thus limiting the downward movement range of the object and preventing damage from collisions with other objects.
[0047] By setting a limiting structure, when this application is used in devices such as oxygen concentrators, it is possible to avoid adding an additional limiting structure. Taking the connection between the support section and the compressor in the oxygen concentrator as an example, it is not necessary to set an additional limiting structure in the oxygen concentrator to prevent the compressor from colliding with other structures, thereby reducing structural costs and also helping to achieve the requirement of compact internal structure of the oxygen concentrator.
[0048] When this application is used in an oxygen concentrator, the limiting structure can restrict the range of movement of the compressor during the movement process, prevent the compressor from colliding with other structures, thereby preventing damage to the oxygen concentrator, ensuring its service life, and avoiding increased equipment maintenance costs. Attached Figure Description
[0049] Figure 1 This is a schematic diagram of a tension spring with a limiting structure according to an embodiment of the present invention;
[0050] Figure 2 for Figure 1 A structural diagram from another perspective;
[0051] Figure 3 This is a schematic diagram of another structure of a tension spring with a limiting structure according to an embodiment of the present invention;
[0052] Figure 4 for Figure 3 A structural diagram from another perspective;
[0053] Figure 5 This is a structural schematic diagram of one application method of the tension spring according to an embodiment of the present utility model.
[0054] In the attached diagrams: 1. Tension spring; 11. Support section; 12. Tension spring body; 13. Fixing section; 14. Limiting structure; 2. Oxygen generator; 3. Compressor.
[0055] The X direction is the first direction; the Y direction is the second direction; and the Z direction is the length direction of the support segment. Detailed Implementation
[0056] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0057] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.
[0058] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.
[0059] See Figures 1-5 A tension spring with a limiting structure includes a support section 11, a tension spring body 12, and a fixing section 13 connected sequentially along a first direction;
[0060] It also includes a limiting structure 14, which is parallel to the first direction and has a limiting end. The limiting end is located on the extension line of the support segment 11 and serves as a component for limiting the stretching range of the tension spring body 12.
[0061] The limiting structure 14 is simple in structure and easy to process.
[0062] The limiting structure 14 is used to limit the stretching range of the tension spring body 12. For example, if the maximum stretching distance of the tension spring body 12 is ten centimeters, under the limitation of the limiting structure 14, the actual maximum stretching distance of the tension spring body 12 is five centimeters.
[0063] One specific way of using the tension spring 1 is as follows: the support section 11 is connected to the object, and the fixed section 13 is fixed to the support plate or other support structure; the object moves the support section 11 downward under the action of gravity, so that the tension spring body 12 is gradually stretched; when the tension spring body 12 extends to the predetermined length, the limiting structure 14 prevents the object and the support section 11 from moving downward, and the tension spring body 12 stops extending.
[0064] In other specific applications of the tension spring 1, the fixed section 13 is connected to the object, and the supporting section 11 is fixed to the supporting plate or other supporting structures. The applications are diverse, and all of them enable the limiting structure 14 to perform the limiting function.
[0065] By setting the limiting structure 14, the extension of the tension spring body 12 can be restricted in advance before it is stretched to its maximum length, thereby limiting the downward movement range of the object and preventing the object from being damaged by collision with other objects.
[0066] By providing the limiting structure 14, when this application is used in devices such as oxygen concentrators, it is possible to avoid adding additional limiting structures. Taking the connection between the support section 11 and the compressor in the oxygen concentrator as an example, it is not necessary to provide an additional limiting structure in the oxygen concentrator to prevent the compressor from colliding with other structures, thereby reducing structural costs and facilitating the achievement of the requirement for a compact internal structure in oxygen concentrators.
[0067] Continuing with the application of this application to an oxygen concentrator, the limiting structure 14 restricts the range of movement of the compressor during movement, preventing the compressor from colliding with other structures, thereby preventing damage to the oxygen concentrator, ensuring its service life, and also avoiding increased equipment maintenance costs.
[0068] The length direction of the limiting structure 14 is parallel to the first direction. Compared with the first direction, the length direction of the limiting structure 14 has an angle, which can reduce the volume of the limiting structure 14, further reduce the structural cost, and reduce the space occupied in directions other than the first direction. This makes it easier to realize the following arrangement where the tension spring body 12 is sleeved on the outside of the limiting structure 14.
[0069] The specific limiting method of the limiting structure 14 is not set. In one case, the limiting structure 14 is bent in the length direction of the support section 11 to form a bent sub-segment. The bent sub-segment is located on the side of the fixed section 13 facing the support section 11, and the support section 11 is limited by the bent sub-segment.
[0070] It should be noted that the support section 11, the tension spring body 12 and the fixing section 13 are existing structures. This application has not changed the basic working principle of the tension spring 1. For example, the stretchable and retractable characteristics of the tension spring body 12 have not been adjusted. However, in some embodiments, certain adjustments have been made to the specific settings of these three components.
[0071] See Figure 2 In this embodiment, the supporting section 11 and the fixing section 13 have the same structure;
[0072] In the first direction, the support segment 11 and the fixed segment 13 are symmetrically arranged.
[0073] The supporting section 11 and the fixed section 13 have the same structure. Based on this, only one specification of structure needs to be processed, which reduces the cost of processing equipment.
[0074] The support section 11 and the fixed section 13 are symmetrically arranged. By constraining the relative position of the two, the aesthetics of the tension spring 1 are improved. In addition, during the processing of the tension spring 1, the position adjustment of the corresponding fixing device can be avoided, thereby improving the processing speed.
[0075] In some embodiments, the support segment 11 and the fixed segment 13 have different structures.
[0076] See Figure 2 In this embodiment, in the second direction, the dimensions of the support segment 11 and the fixed segment 13 are both less than or equal to the dimensions of the tension spring body 12.
[0077] The second direction is perpendicular to the first direction and the length direction of the support segment 11.
[0078] In this embodiment, the support section 11 and the fixed section 13 can be considered to be relatively small in size, or it can be understood that the width of the support section 11 and the width of the fixed section 13 are both less than or equal to the width of the tension spring body 12.
[0079] This embodiment limits the relative dimensions of the support section 11, the fixing section 13 and the tension spring body 12, avoiding the support section 11 and the fixing section 13 from protruding relative to the tension spring body 12 in the second direction, thereby avoiding expanding the space occupied by the tension spring 1 in the second direction and further improving the aesthetics of the tension spring 1; in addition, because the support section 11 and the fixing section 13 are small in size, the structural cost is also reduced.
[0080] In some embodiments, in the first direction, the projection of the support segment 11 and the projection of the fixing segment 13 are both covered by the projection of the tension spring body 12.
[0081] See Figure 2 In this embodiment, in the second direction, the dimensions of the support segment 11, the tension spring body 12, and the fixing segment 13 are all greater than or equal to the dimensions of the limiting structure 14.
[0082] The second direction is perpendicular to the first direction and the length direction of the support segment 11.
[0083] This embodiment limits the relative dimensions of the support section 11, the fixing section 13, the tension spring body 12, and the limiting structure 14. The limiting structure 14 can be considered smaller, thus reducing the structural cost of the tension spring 1 while still fulfilling its limiting function. This embodiment can be understood as meaning that the width of the support section 11, the width of the tension spring body 12, and the width of the fixing section 13 are all greater than or equal to the width of the limiting structure 14.
[0084] See Figure 1 In this embodiment, the tension spring body 12 is sleeved on the outside of the limiting structure 14.
[0085] This embodiment further restricts the relative size of the tension spring body 12 and the limiting structure 14. By making a portion of the tension spring body 12 and a portion of the limiting structure 14 occupy the same space, the size of the tension spring 1 is further reduced, allowing the tension spring 1 to be used in a smaller space and improving the applicability of the tension spring 1.
[0086] See Figure 3 , Figure 4 In some other embodiments, the tension spring body 12 is sleeved on the outside of the limiting structure 14.
[0087] See Figure 2 In this embodiment, the axis of the limiting structure 14 is in the same plane as the axis of the tension spring body 12.
[0088] The configuration in this embodiment can further improve the aesthetics of the tension spring 1.
[0089] Here, we take the limiting structure 14 having a first end and a second end as an example, as follows: In one case, the first end is close to the support section 11, and the second end is connected to the fixed section 13; the first end is provided with a limiting ring; when the support section 11 contacts the end of the limiting ring wall that is far from the second end, it is limited, which requires a part of the support section 11 to be inserted into the inner side of the limiting ring; by setting the axis of the limiting structure 14 and the axis of the tension spring body 12 to be in the same plane, it can be regarded as the limiting structure 14 and the tension spring body 12 being centered, which facilitates the insertion of a part of the support section 11 into the inner side of the limiting ring, and provides convenience for adjusting the position of the support section 11 according to actual needs.
[0090] In this embodiment, the support section 11, the tension spring body 12, and the fixing section 13 are integrally formed.
[0091] The one-piece molding design improves the structural strength of the tension spring 1, thereby increasing its service life. It also expands the applicability of the tension spring 1 by making it suitable for heavy objects.
[0092] In this embodiment, the other end of the limiting structure 14 is connected to the end of the tension spring body 12 away from the limiting end or the fixed segment 13.
[0093] The connection positions of the limiting structure 14 are diverse, making it easy to adjust according to actual needs and improving the applicability of the tension spring 1.
[0094] Taking the connection of the limiting structure 14 to the fixed section 13 as an example: In this case, the limiting structure 14 and the fixed section 13 can be separated, allowing for quick replacement of limiting structures 14 of varying lengths as needed to adjust the actual stretchable range of the tension spring body 12 and improve the flexibility of the tension spring 1. Compared to replacing the entire tension spring 1, replacing only the limiting structure 14 can further reduce costs. There are no restrictions on the method of achieving this separability; for example, a threaded connection can be used.
[0095] Continuing with the example of the limiting structure 14 connected to the fixed segment 13: In some embodiments, the limiting structure 14 and the fixed segment 13 are integrally formed.
[0096] In some embodiments, the limiting structure 14 is connected to the fixed segment 13. In the direction of the fixed segment 13 toward the support segment 11, the limiting structure 14 protrudes relative to the support segment 11. At this time, in the length direction of the support segment 11, part of the projection of the limiting structure 14 is located on the side where the projection of the support segment 11 is opposite to the projection of the tension spring body 12, so that the limiting structure 14 limits the support segment 11; the length direction of the support segment 11 is perpendicular to the first direction.
[0097] In some embodiments, the limiting structure 14 is separately disposed from other structures within the tension spring 1.
[0098] An oxygen generator is also provided herein, including a compressor 3, a housing, and a tension spring 1 as described in any of the above embodiments, wherein the support section 11 or the fixing section 13 of the tension spring 1 is connected to the compressor 3.
[0099] In some embodiments, the compressor 3 and the tension spring 1 are located inside the housing, and the tension spring 1 is directly or indirectly (through a support structure such as a support plate) connected to the housing.
[0100] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A tension spring with a limiting structure, characterized in that: It includes a support section (11), a tension spring body (12), and a fixing section (13) connected sequentially along the first direction. It also includes a limiting structure (14) that is parallel to the first direction and has a limiting end that is located on the extension line of the support segment (11) and serves as a component for limiting the stretching range of the tension spring body (12).
2. A tension spring with a limiting structure according to claim 1, characterized in that: The other end of the limiting structure (14) is fixedly connected to the fixed segment (13).
3. A tension spring with a limiting structure according to claim 1, characterized in that: The other end of the limiting structure (14) is fixedly connected to the end of the tension spring body (12) away from the limiting end.
4. A tension spring with a limiting structure according to claim 1, characterized in that: In the first direction, the support segment (11) and the fixed segment (13) are symmetrically arranged.
5. A tension spring with a limiting structure according to claim 1, characterized in that: The width of the support section (11) and the width of the fixing section (13) are both less than or equal to the width of the tension spring body (12).
6. A tension spring with a limiting structure according to claim 1, characterized in that: The width of the support section (11), the width of the tension spring body (12), and the width of the fixing section (13) are all greater than or equal to the width of the limiting structure (14).
7. A tension spring with a limiting structure according to claim 6, characterized in that: The tension spring body (12) is sleeved on the outside of the limiting structure (14).
8. A tension spring with a limiting structure according to any one of claims 1-6, characterized in that: The axis of the limiting structure (14) is in the same plane as the axis of the tension spring body (12).
9. A tension spring with a limiting structure according to any one of claims 1-6, characterized in that: The support section (11), the tension spring body (12), and the fixing section (13) are integrally formed.
10. An oxygen generator, comprising a compressor (3) and a housing, characterized in that: The oxygen concentrator also includes a tension spring with a limiting structure as described in any one of claims 1-9, wherein the support section (11) or the fixing section (13) of the tension spring (1) is connected to the compressor (3).