Blind rivet and ventilation system

Abstract

The utility model relates to the technical field of ventilation devices, in particular to a blind rivet and a ventilation system. The blind rivet comprises a cushion block, an elastic fan via hole shaft and an elastic framework via hole shaft, the fan via hole shaft is suitable for being connected with a fan, and the framework via hole shaft is suitable for being connected with a seat framework; the cushion block is provided with a first side face and a second side face which are opposite in the first direction, the fan via hole shaft is connected with the first side face of the cushion block, and the framework via hole shaft is connected with the second side face of the cushion block. The axis of the fan via hole shaft is parallel to the axis of the framework via hole shaft in the second direction, and the first direction is perpendicular to the second direction. According to the utility model, through the design that the fan via hole shaft and the framework via hole shaft are not coaxial, the complex process of modifying a seat framework (metal plate) or customizing a special fan due to the fact that hole positions are not coaxial is avoided, the original metal plate design and fan specification can be kept, and the change cost and risk in the production process are reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of ventilation devices, and in particular relates to a rivet and ventilation system. Background Technology

[0002] Currently, fans are typically secured to the seat frame using rivets. However, in actual production, a common problem arises where the rivet hole and the corresponding mounting hole on the seat frame are not aligned. When the rivet hole and the frame mounting hole are not aligned, the rivet is forced to insert at an angle, resulting in uneven tension on the rivet. This not only increases the risk of rivet breakage or failure and shortens its lifespan, but also complicates and delays the assembly process, reducing production efficiency.

[0003] In the existing technology, a common solution is to adjust the hole positions of the seat frame or fan to ensure that the two are coaxial. Obviously, this method is costly. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in the prior art, adjusting the hole positions of the seat frame or fan to ensure that the two are coaxial is costly, so this utility model provides a rivet and ventilation system.

[0005] To solve the above-mentioned technical problems, on the one hand, this utility model provides a pull stud, including a pad, an elastic fan through-hole shaft and an elastic frame through-hole shaft, wherein the fan through-hole shaft is adapted to connect a fan and the frame through-hole shaft is adapted to connect a seat frame;

[0006] The pad has a first side and a second side opposite to each other along a first direction. The fan through-hole shaft is connected to the first side of the pad, and the frame through-hole shaft is connected to the second side of the pad.

[0007] The axis of the fan through-hole shaft is parallel to the axis of the skeleton through-hole shaft in a second direction, and the first direction is perpendicular to the second direction.

[0008] Optionally, the axis of the fan through-hole shaft is perpendicular to the first side of the pad, and the axis of the skeleton through-hole shaft is perpendicular to the second side of the pad.

[0009] Optionally, the fan through-hole shaft includes a first connecting section and a first expanded portion, and the first side of the pad, the first connecting section and the first expanded portion are connected in sequence;

[0010] Along the first direction, the area of ​​the cross-section of the first enlarged portion is greater than or equal to the area of ​​the cross-section of the first connecting segment.

[0011] Optionally, the fan through-hole shaft further includes a second connecting section, wherein the first connecting section, the first enlarged portion, and the second connecting section are connected in sequence;

[0012] Along the first direction, the area of ​​the cross-section of the first enlarged portion is greater than or equal to the area of ​​the cross-section of the second connecting segment.

[0013] Optionally, along the first direction, the cross-sectional area of ​​the first enlarged portion gradually increases.

[0014] Optionally, the skeleton through-hole shaft includes a third connecting section and a second enlarged portion, and the second side of the pad, the third connecting section and the second enlarged portion are connected in sequence;

[0015] Along the first direction, the area of ​​the cross-section of the second enlarged portion is greater than the area of ​​the cross-section of the third connecting segment.

[0016] Optionally, the skeleton through-hole shaft further includes a fourth connecting section, wherein the third connecting section, the second enlarged portion, and the fourth connecting section are connected in sequence;

[0017] Along the first direction, the area of ​​the cross-section of the second enlarged portion is greater than or equal to the area of ​​the cross-section of the fourth connecting segment.

[0018] Optionally, along the first direction, the area of ​​the cross-section of the second enlarged portion gradually decreases.

[0019] Optionally, the fan through-hole shaft and the frame through-hole shaft are respectively fixedly connected to the pad block;

[0020] Alternatively, the fan through-hole shaft, the frame through-hole shaft, and the pad block are integrally formed.

[0021] According to the rivet provided in this embodiment of the utility model, a pad is placed between the seat frame and the fan. The fan is connected to the fan via a fan through-hole shaft on the first side of the pad, and to the seat frame via a frame through-hole shaft on the second side of the pad, thus achieving the connection between the fan and the seat frame. The misalignment design of the fan through-hole shaft and the frame through-hole shaft avoids the complex process of modifying the seat frame (sheet metal) or customizing a special fan due to misaligned holes. This maintains the original sheet metal design and fan specifications, reducing change costs and risks during production. The introduction of a flexible design allows the flexible fan through-hole shaft and frame through-hole shaft to automatically adapt to minor hole deviations during installation, reducing the installation failure rate caused by misaligned holes.

[0022] On the other hand, this utility model embodiment provides a ventilation system, including a fan, a seat frame and the aforementioned pull pins, wherein the fan through-hole shaft is connected to the fan, and the frame through-hole shaft is connected to the seat frame. Attached Figure Description

[0023] Figure 1 This is a first-view structural schematic diagram of a pull stud provided in an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 A magnified view of A;

[0025] Figure 3 This is a second-view structural schematic diagram of a pull stud provided in an embodiment of the present invention.

[0026] The reference numerals in the accompanying drawings are as follows:

[0027] 1. Pad; 2. Fan through-hole shaft; 3. Frame through-hole shaft; 21. First connecting section; 22. First enlarged part; 23. Second connecting section; 31. Third connecting section; 32. Second enlarged part; 33. Fourth connecting section. Detailed Implementation

[0028] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] like Figures 1 to 3 As shown, one embodiment of the present invention provides a pull stud, including a pad 1, an elastic fan through-hole shaft 2 and an elastic frame through-hole shaft 3. The fan through-hole shaft 2 is suitable for connecting a fan, and the frame through-hole shaft 3 is suitable for connecting a seat frame.

[0030] The pad 1 has a first side and a second side opposite to each other along the first direction. The fan through-hole shaft 2 is connected to the first side of the pad 1, and the frame through-hole shaft 3 is connected to the second side of the pad 1.

[0031] The axis of the fan through-hole shaft 2 and the axis of the frame through-hole shaft 3 are parallel to each other in a second direction, and the first direction is perpendicular to the second direction. In this embodiment, during installation, the pad 1 is placed between the fan and the seat frame, the fan through-hole shaft 2 of the pull pin is aligned with the fixing hole of the fan, and the frame through-hole shaft 3 is placed close to the fixing hole of the seat frame. Since both the fan through-hole shaft 2 and the frame through-hole shaft 3 are designed as elastic structures, they can adapt to minor deviations during installation to a certain extent. Under slight pressure, the fan through-hole shaft 2 first enters the fixing hole of the fan. Due to the elasticity, even if the hole is not completely coaxial, it can be initially fixed through slight deformation. At this time, the pad 1 of the pull pin acts as a support point, ensuring the stability of the overall structure. Subsequently, the frame through-hole shaft 3 is pressed into the fixing hole of the seat frame. Since the frame through-hole shaft 3 is also elastic, it can automatically adjust its position when encountering hole deviations until it completely passes through the hole and achieves a tight connection. During this process, the elasticity makes the installation smoother, reducing installation difficulties caused by mismatched holes. Once the fan through-hole shaft 2 and the frame through-hole shaft 3 are successfully fixed in their respective holes, the elastic material of the rivet gradually returns to its initial state, providing stable connection force and ensuring a firm connection between the fan and the seat frame. No complicated tools or professional skills are required during installation; simply pressing the rivet into the hole is sufficient for fixation, improving installation efficiency and reducing installation costs. The entire rivet is elastic and made of rubber. The pad 1 can be square, with chamfered edges around its perimeter. The first direction is the thickness direction of the pad 1, and the second direction is either the length or width direction of the pad 1.

[0032] In one embodiment, the axis of the fan through-hole shaft 2 is perpendicular to the first side of the pad 1, and the axis of the frame through-hole shaft 3 is perpendicular to the second side of the pad 1. In this embodiment, by making the axes of the fan through-hole shaft 2 and the frame through-hole shaft 3 perpendicular to the first and second sides of the pad 1, respectively, it is ensured that the rivet can be stably supported on two planes during installation. This perpendicular design allows the rivet to more effectively disperse stress when subjected to external forces, reducing shear forces caused by misalignment, thereby enhancing the stability and durability of the connection. When the fan rivet through-hole and the fixing hole on the seat frame have different axes, this perpendicular design makes it easier for the rivet to adapt to this deviation. Since the elastic part of the rivet (i.e., the fan through-hole shaft 2 and the frame through-hole shaft 3) can be finely adjusted along the direction perpendicular to the pad 1, and the pad 1 can be elastic, even if the holes are not perfectly aligned, an effective connection can be achieved through slight deformation. This design greatly improves the adaptability of the rivet to holes with different axes. The vertical design also simplifies the installation process, as installers only need to ensure that the pad side of the rivet is parallel to the contact surface of the seat frame or fan, and then apply appropriate pressure to press the rivet into the hole. This intuitive installation method reduces the skill requirements of the installer and improves installation efficiency.

[0033] In one embodiment, the fan through-hole shaft 2 includes a first connecting section 21 and a first enlarged portion 22, and the first side of the pad 1, the first connecting section 21 and the first enlarged portion 22 are connected in sequence;

[0034] Along the first direction, the cross-sectional area of ​​the first enlarged portion 22 is greater than or equal to the cross-sectional area of ​​the first connecting segment 21. In this embodiment, the first direction is the thickness direction of the pad 1. The first connecting segment 21 is installed in the fan's mounting hole, and the first enlarged portion 22 is located outside the fan's mounting hole. The first connecting segment 21 is inserted into the fan's mounting hole, and the fan's mounting hole is located between the first enlarged portion 22 and the first side surface of the pad 1. The first enlarged portion 22 serves as a limiting element, preventing excessive movement of the fan housing and ensuring the stability and accuracy of the fan housing, thereby improving the fan's performance and durability. In this embodiment, both the first connecting segment 21 and the first enlarged portion 22 are elastic. In other embodiments, the first enlarged portion 22 is elastic, while the first connecting segment 21 may not be elastic.

[0035] In one embodiment, the fan through-hole shaft 2 further includes a second connecting section 23, wherein the first connecting section 21, the first enlarged portion 22 and the second connecting section 23 are connected in sequence;

[0036] Along the first direction, the cross-sectional area of ​​the first enlarged portion 22 is greater than or equal to the cross-sectional area of ​​the second connecting segment 23. In this embodiment, the first enlarged portion 22 effectively defines the relative position of the pull stud and the fan housing, ensuring the stability and coaxiality of the fan, thereby improving the fan's operating efficiency and lifespan. The second connecting segment 23 acts as a guide, helping to correctly guide the positioning of the fan housing during installation, making fan installation more precise and convenient. This design allows for the use of fan and frame through holes in cases of different axes, avoiding the need to modify sheet metal or open new fan holes, thereby reducing manufacturing and maintenance costs. In this embodiment, in the first direction, the cross-sectional area of ​​the first connecting segment 21 is equal to the cross-sectional area of ​​the second connecting segment 23. In other embodiments, the cross-sectional areas of the first connecting segment 21 and the second connecting segment 23 are not equal.

[0037] In one embodiment, the cross-sectional area of ​​the first enlarged portion 22 gradually increases along a first direction. In this embodiment, the first direction is the thickness direction of the pad 1. Figure 1 From top to bottom, the first enlarged part 22 is frustum-shaped. The frustum-shaped first enlarged part 22 makes the guide smoother, which helps the rivet to be installed and positioned smoothly.

[0038] In one embodiment, the skeleton through-hole shaft 3 includes a third connecting section 31 and a second enlarged part 32, and the second side of the pad 1, the third connecting section 31 and the second enlarged part 32 are connected in sequence;

[0039] Along the first direction, the cross-sectional area of ​​the second enlarged portion 32 is larger than that of the third connecting section 31. Similar to the design of the fan through-hole shaft 2, the second enlarged portion 32 is located outside the fixing hole (or corresponding installation position) of the seat frame, and its cross-sectional area is larger than that of the third connecting section 31. The third connecting section 31 is inserted into the fixing hole of the seat frame, and the fixing hole of the seat frame is located between the second enlarged portion 32 and the second side of the pad 1. This design plays an effective limiting role. The third connecting section 31 acts as a bridge connecting the pad 1 and the second enlarged portion 32, so that the seat frame and the frame through-hole shaft 3 are stably connected together, thereby making the fan at the other end of the rivet stably connected to the seat frame.

[0040] In one embodiment, the skeleton through-hole shaft 3 further includes a fourth connecting section 33, wherein the third connecting section 31, the second enlarged portion 32 and the fourth connecting section 33 are connected in sequence;

[0041] Along the first direction, the cross-sectional area of ​​the second enlarged portion 32 is greater than or equal to the cross-sectional area of ​​the fourth connecting section 33. Similar to the design of the fan through-hole shaft 2, the second enlarged portion 32 can effectively limit the relative position of the rivet and the seat frame, and the fourth connecting section 33 acts as a guide, which helps in the installation of the frame through-hole shaft 3. This design allows the use of the fan and frame through-hole in different shaft situations, avoiding the need to modify sheet metal or open new fan holes, thereby reducing manufacturing and maintenance costs.

[0042] In one embodiment, the cross-sectional area of ​​the second enlarged portion 32 gradually decreases along a first direction. In this embodiment, the first direction is the thickness direction of the pad 1. Figure 1 From top to bottom, the second enlarged part 32 is frustum-shaped. The frustum-shaped second enlarged part 32 makes the guide smoother, which helps the rivet to be smoothly installed and positioned on the seat frame.

[0043] In one embodiment, the fan through-hole shaft 2 and the frame through-hole shaft 3 are respectively fixedly connected to the pad block 1;

[0044] Alternatively, the fan through-hole shaft 2, the frame through-hole shaft 3, and the pad 1 can be integrally formed. In this embodiment, the fixed connection ensures that the relative position between the fan and the frame remains unchanged, thereby guaranteeing coaxiality and the stability of the overall structure. Through the fixed connection, the length of the pull pin pad 1 can be designed according to the specific distance between the frame through-hole and the fan through-hole, thus avoiding modifications to sheet metal or the creation of new fan holes, thereby reducing manufacturing costs. Simultaneously, the fan through-hole shaft 2 and the frame through-hole shaft 3 can also be slidably connected to the pad 1. The slidable connection provides greater adaptability, accommodating different models of fans and frames, or offering greater flexibility during design changes, allowing for fine-tuning during installation to ensure optimal connection. The slidable connection can be achieved through a slide rail or a slide groove.

[0045] According to the rivet provided in this embodiment of the utility model, the pad 1 is placed between the seat frame and the fan. The fan is connected to the fan via a fan through-hole shaft 2 located on the first side of the pad 1, and to the seat frame via a frame through-hole shaft 3 located on the second side of the pad 1, thus achieving the connection between the fan and the seat frame. The misalignment design of the fan through-hole shaft 2 and the frame through-hole shaft 3 avoids the complex process of modifying the seat frame (sheet metal) or customizing a special fan due to misaligned holes. This maintains the original sheet metal design and fan specifications, reducing change costs and risks during production. The introduction of an elastic design allows the flexible fan through-hole shaft 2 and frame through-hole shaft 3 to automatically adapt to minor hole deviations during installation, reducing the installation failure rate caused by misaligned holes.

[0046] In addition, one embodiment of this utility model provides a ventilation system, including a fan, a seat frame, and the pull studs described in the above embodiment. The fan through-hole shaft 2 is connected to the fan, and the frame through-hole shaft 3 is connected to the seat frame. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rivet, characterized in that, It includes a pad, a flexible fan through-hole shaft, and a flexible frame through-hole shaft, wherein the fan through-hole shaft is adapted to connect a fan, and the frame through-hole shaft is adapted to connect a seat frame; The pad has a first side and a second side opposite to each other along a first direction. The fan through-hole shaft is connected to the first side of the pad, and the frame through-hole shaft is connected to the second side of the pad. The axis of the fan through-hole shaft is parallel to the axis of the skeleton through-hole shaft in a second direction, and the first direction is perpendicular to the second direction.

2. The rivet according to claim 1, characterized in that, The axis of the fan through hole shaft is perpendicular to the first side of the pad block, and the axis of the skeleton through hole shaft is perpendicular to the second side of the pad block.

3. The rivet according to claim 1, characterized in that, The fan through-hole shaft includes a first connecting section and a first expanded portion, and the first side of the pad, the first connecting section and the first expanded portion are connected in sequence; Along the first direction, the area of ​​the cross-section of the first enlarged portion is greater than or equal to the area of ​​the cross-section of the first connecting segment.

4. The rivet according to claim 3, characterized in that, The fan through-hole shaft also includes a second connecting section, and the first connecting section, the first expanded portion and the second connecting section are connected in sequence; Along the first direction, the area of ​​the cross-section of the first enlarged portion is greater than or equal to the area of ​​the cross-section of the second connecting segment.

5. The rivet according to claim 3, characterized in that, Along the first direction, the cross-sectional area of ​​the first enlarged portion gradually increases.

6. The rivet according to claim 1, characterized in that, The skeleton through-hole shaft includes a third connecting section and a second expanded part, and the second side of the pad, the third connecting section and the second expanded part are connected in sequence; Along the first direction, the area of ​​the cross-section of the second enlarged portion is greater than the area of ​​the cross-section of the third connecting segment.

7. The rivet according to claim 6, characterized in that, The skeleton through-hole shaft also includes a fourth connecting section, and the third connecting section, the second enlarged part and the fourth connecting section are connected in sequence; Along the first direction, the area of ​​the cross-section of the second enlarged portion is greater than or equal to the area of ​​the cross-section of the fourth connecting segment.

8. The rivet according to claim 6, characterized in that, Along the first direction, the area of ​​the cross-section of the second enlarged portion gradually decreases.

9. The rivet according to claim 1, characterized in that, The fan through-hole shaft and the frame through-hole shaft are respectively fixedly connected to the pad block; Alternatively, the fan through-hole shaft, the frame through-hole shaft, and the pad block are integrally formed.

10. A ventilation system, characterized in that, The device includes a fan, a seat frame, and a rivet as described in any one of claims 1-9, wherein the fan through-hole shaft is connected to the fan, and the frame through-hole shaft is connected to the seat frame.

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