Air duct adjusting assembly of wind resistance fitness equipment

Abstract

This utility model discloses an air duct adjustment component for a wind resistance fitness device, including a housing. The housing has a connecting post and a first spiral strip. The first spiral strip extends spirally from the inside to the outside around the connecting post to form an air inlet. An adjustment disc is rotatably connected to the side of the housing with the air inlet. The adjustment disc has a second spiral strip extending spirally from the inside to the outside around the connecting post. When the adjustment disc rotates, the second spiral strip can reduce or increase the flow area of ​​the air inlet. This utility model, by configuring the housing with a connecting post and a first spiral strip, the first spiral strip extending spirally from the inside to the outside around the connecting post to form an air inlet, and by placing the adjustment disc on one side of the air inlet with a second spiral strip extending spirally from the inside to the outside around the connecting post, allows users to change the resistance by adjusting the flow area of ​​the air inlet and the speed of the impeller. The resistance adjustment methods are diverse and can meet user needs.

Description

Technical Field

[0001] This utility model relates to the field of wind resistance fitness equipment technology, and in particular to the air duct adjustment component of wind resistance fitness equipment. Background Technology

[0002] Resistance training equipment is a type of fitness device that adjusts exercise intensity by changing the resistance level, such as rowing machines, exercise bikes, and elliptical trainers. Existing resistance training equipment mainly consists of a frame, drive unit, fan housing, and impeller. The fan housing is located on one side of the frame and has an air chamber and air inlet. The drive unit is movably connected to the frame (such as the rowing bar, the pedals of an exercise bike, or the pedals of an elliptical trainer). The impeller is located inside the air chamber and is driven to rotate by the drive unit; the faster the impeller rotates, the greater the resistance. Because existing resistance training equipment only adjusts the resistance level through impeller speed, the resistance adjustment method is limited and cannot meet the diverse exercise intensity needs of users. Utility Model Content

[0003] The purpose of this invention is to provide an air duct adjustment component for a wind resistance fitness device, in order to solve the problem that existing wind resistance fitness devices only adjust the resistance by the speed of the impeller, resulting in a single resistance adjustment method that cannot meet the diverse exercise intensity needs of users.

[0004] This utility model is achieved through the following technical solution:

[0005] The air duct adjustment component of the wind resistance fitness device includes a housing, the housing having a connecting post and a first spiral strip, the first spiral strip extending spirally from the inside to the outside around the connecting post to form an air inlet, an adjustment disc being rotatably connected to the side of the housing with the air inlet, the adjustment disc having a second spiral strip extending spirally from the inside to the outside around the connecting post, the second spiral strip being able to reduce or increase the flow area of ​​the air inlet when the adjustment disc rotates.

[0006] Furthermore, the adjusting disc can rotate to at least a first position and a second position relative to the outer casing. When the adjusting disc rotates to the first position, the second spiral strip is offset from the first spiral strip, and when the adjusting disc rotates to the second position, it coincides with the first spiral strip, so that the flow area of ​​the air inlet decreases or increases when the adjusting disc rotates between the first and second positions.

[0007] Furthermore, the adjusting disc can also rotate to a third position. The first, second, and third positions are sequentially arranged in the rotation direction of the adjusting disc. The second spiral gradually increases the flow area of ​​the air inlet during the process of the adjusting disc rotating from the first position to the second position, and gradually decreases the flow area of ​​the air inlet during the process of the adjusting disc rotating from the second position to the first position. The flow area of ​​the air inlet remains unchanged during the process of the adjusting disc rotating between the second and third positions.

[0008] Furthermore, during the rotation of the adjusting disc between the second and third positions, the second spiral strip always coincides with the first spiral strip, so that the flow area of ​​the air inlet remains unchanged during the rotation of the adjusting disc between the second and third positions.

[0009] Furthermore, the outer shell also has a first reinforcing rib, which extends outward from the connecting post and is connected to the first spiral strip; and / or the adjusting disc has a collar and a second reinforcing rib, which passes through the connecting post and extends outward from the collar and is connected to the second spiral strip.

[0010] Furthermore, there are two of each of the first and second spiral strips, and they correspond one-to-one. The two first spiral strips are symmetrical about the axis of the connecting post, and the two second spiral strips are symmetrical about the axis of the connecting post.

[0011] Furthermore, the outer casing has two stop bars spaced apart in the rotation direction of the adjustment disc, the adjustment disc has a stop rod, the stop rod moves between the two stop bars when the adjustment disc rotates and can respectively abut against the two stop bars to restrict the rotation of the adjustment disc, and the outer casing has a stop scale line between the two stop bars.

[0012] Furthermore, the connecting column has a detachable fixed connection between a central part and a connecting part, the first spiral strip is integrally formed on the central part and extends spirally from the inside to the outside around the central part, and the adjusting disc passes through the connecting part and abuts against the central part and the connecting part respectively.

[0013] Furthermore, a damping ring is provided between the adjusting disc and the central portion and / or the connecting portion.

[0014] Furthermore, the outer shell surface is provided with a positioning ring that is arranged around the first spiral strip, and the adjusting disc is attached to the outer shell and is provided with a positioning groove for the positioning ring to be inserted.

[0015] The advantage of this technical solution is that by configuring the outer shell with a connecting column and a first spiral strip, the first spiral strip extends spirally from the inside to the outside around the connecting column to form an air inlet. The adjustment disk is configured on one side of the air inlet and has a second spiral strip extending spirally from the inside to the outside around the connecting column. When the adjustment disk rotates, the second spiral strip can reduce or increase the flow area of ​​the air inlet, allowing users to change the resistance by adjusting the flow area of ​​the air inlet and adjusting the speed of the impeller. The resistance adjustment method is diverse, which greatly meets the different exercise intensity needs of users. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of the air duct adjustment component of the wind resistance fitness device disclosed in the embodiment;

[0019] Figure 2 This is a front view of the air duct adjustment assembly of the wind resistance fitness device disclosed in the embodiment (adjustment dial rotated to the first position);

[0020] Figure 3 This is a front view of the air duct adjustment assembly of the wind resistance fitness device disclosed in the embodiment (adjustment dial rotated to the second position);

[0021] Figure 4 This is a front view of the air duct adjustment assembly of the wind resistance fitness device disclosed in the embodiment (adjustment dial rotated to the third position);

[0022] Figure 5 This is a partial exploded view of the air duct adjustment assembly of the wind resistance fitness device disclosed in the embodiment;

[0023] Figure 6 yes Figure 5 A magnified view of a section at point A in the middle;

[0024] Figure 7 This is a perspective view of the outer casing in the embodiment;

[0025] Figure 8 The three-dimensional adjustment disc in the embodiment Figure 1 ;

[0026] Figure 9 The three-dimensional adjustment disc in the embodiment Figure 2 . Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example: Figure 1-9 As shown, the air duct adjustment assembly of the wind resistance fitness device includes a housing 1. The housing 1 has a connecting post 101 and a first spiral 102. The first spiral 102 extends spirally from the inside to the outside around the connecting post 101 to form an air inlet 103. An adjustment disk 2 is rotatably connected to the side of the housing 1 with the air inlet 103. The adjustment disk 2 has a second spiral 201 extending spirally from the inside to the outside around the connecting post 101. When the adjustment disk 2 rotates, the second spiral 201 can reduce or increase the flow area of ​​the air inlet 103. The housing 1 has an air cavity (not shown in the figure) through which air enters through the air inlet 103, and a fan wheel (not shown in the figure) is provided in the air cavity. Specifically, when the adjustment disk 2 rotates, the second spiral 201 gradually blocks the air inlet 103, thereby reducing the flow area of ​​the air inlet 103, and conversely, it increases the flow area of ​​the air inlet 103.

[0029] This embodiment provides an air duct adjustment component for a wind resistance fitness device to solve the problem that existing wind resistance fitness devices only adjust the resistance by adjusting the impeller speed, resulting in a single resistance adjustment method that cannot meet the diverse exercise intensity needs of users. The main improvement is achieved by configuring the outer shell 1 with a connecting post 101 and a first spiral 102. The first spiral 102 extends spirally from the inside to the outside around the connecting post 101 to form an air inlet 103. An adjustment disc 2 is positioned on one side of the air inlet 103 and has a second spiral 201 extending spirally from the inside to the outside around the connecting post 101. When the adjustment disc 2 rotates, the second spiral 201 can reduce or increase the flow area of ​​the air inlet 103, thereby adjusting the air volume. A larger air volume results in greater resistance, and a smaller air volume results in less resistance. Therefore, users can change the resistance by adjusting the flow area of ​​the air inlet 103 and the impeller speed, providing diverse resistance adjustment methods to greatly meet the different exercise intensity needs of users.

[0030] In this embodiment of the invention, the adjusting disc 2 can rotate relative to the outer casing 1 to at least a first position and a second position. When the adjusting disc 2 rotates to the first position, the second spiral 201 is offset from the first spiral 102, and when the adjusting disc 2 rotates to the second position, it coincides with the first spiral 102. This allows the flow area of ​​the air inlet 103 to decrease or increase as the adjusting disc 2 rotates between the first and second positions. By configuring the second spiral 201 to be offset from the first spiral 102 when the adjusting disc 2 rotates to the first position and coincides with the first spiral 102 when the adjusting disc 2 rotates to the second position, the air intake volume of the air inlet 103 can be decreased or increased when the adjusting disc 2 rotates between the first and second positions. The adjustment structure is simple, ingenious, and easy to implement.

[0031] In this embodiment of the utility model, the adjusting disk 2 can also rotate to a third position. The first position, the second position, and the third position are arranged sequentially in the rotation direction of the adjusting disk 2. The second spiral 201 gradually increases the flow area of ​​the air inlet 103 during the process of the adjusting disk 2 rotating from the first position to the second position, and gradually decreases the flow area of ​​the air inlet 103 during the process of the adjusting disk 2 rotating from the second position to the first position. The flow area of ​​the air inlet 103 remains unchanged during the process of the adjusting disk 2 rotating between the second position and the third position. Specifically, during the process of the adjusting disk 2 rotating between the second position and the third position, the second spiral 201 always coincides with the first spiral 102, so that the flow area of ​​the air inlet 103 remains unchanged during the process of the adjusting disk 2 rotating between the second position and the third position.

[0032] Specifically, the first position is the position marked as 1 on the gear scale line 106 in the figure, the second position is the position marked as 11 on the gear scale line 106 in the figure, and the third position is the position marked as 16 on the gear scale line 106 in the figure.

[0033] In this embodiment of the invention, the outer shell 1 further includes a first reinforcing rib 104, which extends outward from the connecting post 101 and connects to the first spiral strip 102. Preferably, there are several first reinforcing ribs 104, which are spaced apart circumferentially from the connecting post 101. This configuration, by setting the outer shell 1 to include first reinforcing ribs 104 extending outward from the connecting post 101 and connecting to the first spiral strip 102, gives the first spiral strip 102 good structural strength.

[0034] In this embodiment of the invention, the adjusting disc 2 has a collar 202 and a second reinforcing rib 203. The collar 202 passes through the connecting post 101, and the second reinforcing rib 203 extends outward from the collar 202 and connects to the second spiral strip 201. Preferably, there are several second reinforcing ribs 203, which are spaced apart circumferentially from the collar 202. This configuration, by having a collar 202 passing through the connecting post 101 and second reinforcing ribs 203 extending outward from the collar 202 and connecting to the second spiral strip 201, ensures a stable connection between the adjusting disc 2 and the connecting post 101, and provides the second spiral strip 201 with good structural strength.

[0035] In this embodiment of the invention, there are two first spiral bars 102 and two corresponding second spiral bars 201. The two first spiral bars 102 are symmetrical about the axis of the connecting post 101, and the two second spiral bars 201 are symmetrical about the axis of the connecting post 101. By configuring the first spiral bars 102 and the second spiral bars 201 into two corresponding pairs, the adjusting disk 2 has a good adjusting effect when it rotates.

[0036] In this embodiment of the invention, the outer casing 1 has two stop bars 105 spaced apart in the rotation direction of the adjusting disk 2. The adjusting disk 2 has a stop rod 204, which moves between the two stop bars 105 when the adjusting disk 2 rotates and can respectively abut against the two stop bars 105 to restrict the rotation of the adjusting disk 2. The outer casing 1 has a stop scale line 106 between the two stop bars 105. The above arrangement, by configuring two stop bars 105 on the outer casing 1, configuring a stop scale line 106 between the two stop bars 105, and configuring a stop rod 204 that moves between the two stop bars 105 on the adjusting disk 2, allows the user to operate accurately when adjusting the flow area of ​​the air inlet 103.

[0037] In this embodiment of the invention, the connecting post 101 has a detachably fixed central portion 107 and a connecting portion 108. A first spiral strip 102 is integrally formed on the central portion 107 and extends circumferentially from the inside to the outside around the central portion 107. The adjusting disc 2 passes through the connecting portion 108 and abuts against the central portion 107 and the connecting portion 108 respectively. By configuring the connecting post 101 with a detachably fixed central portion 107 and a connecting portion 108, and with the adjusting disc 2 passing through the connecting portion 108 and abutting against the central portion 107 and the connecting portion 108 respectively, the adjusting disc 2 is stably assembled with the outer casing 1 and is easy to assemble and disassemble.

[0038] In this embodiment of the invention, a damping ring 3 is provided between the collar 202 and the center portion 107 and the connecting portion 108. This arrangement, by placing the damping ring 3 between the collar 202 and the center portion 107 and the connecting portion 108, ensures that the adjusting disc 2 can be stably positioned at the target location after rotating to its intended position.

[0039] In this embodiment of the invention, a positioning ring 109 is protruding from the surface of the outer shell 1 and is arranged around the first spiral bar 102. The adjusting disk 2 is attached to the outer shell 1 and is provided with a positioning groove 205 for the positioning ring 109 to be inserted. The above arrangement, by configuring the positioning ring 109 around the first spiral bar 102 on the surface of the outer shell 1 and configuring the positioning groove 205 on the adjusting disk 2 for the positioning ring 109 to be inserted, makes the adjusting disk 2 and the outer shell 1 stably assembled and rotate smoothly.

[0040] In this embodiment of the utility model, the outer shell 1 includes an outer cover 110, a connecting ring 111 and an inner cover 112. The outer cover 110, the connecting ring 111 and the inner cover 112 are connected in sequence to form a wind cavity. The outer cover 110 is provided with an air inlet and the connecting ring 111 is provided with an air outlet 113.

[0041] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered as protected by this utility model.

Claims

1. An air duct adjustment assembly for a wind resistance exercise machine, comprising: The device includes a housing (1), which has a connecting post (101) and a first spiral strip (102). The first spiral strip (102) extends spirally from the inside to the outside around the connecting post (101) to form an air inlet (103). An adjusting disk (2) is rotatably connected to the side of the housing (1) where the air inlet (103) is located. The adjusting disk (2) has a second spiral strip (201) extending spirally from the inside to the outside around the connecting post (101). When the adjusting disk (2) rotates, the second spiral strip (201) can reduce or increase the flow area of ​​the air inlet (103).

2. The air duct adjustment assembly of the wind resistance exerciser according to claim 1, wherein, The adjusting disc (2) can rotate to at least a first position and a second position relative to the outer casing (1). The second spiral (201) is offset from the first spiral (102) when the adjusting disc (2) rotates to the first position, and coincides with the first spiral (102) when the adjusting disc (2) rotates to the second position, so that the flow area of ​​the air inlet (103) decreases or increases when the adjusting disc (2) rotates between the first position and the second position.

3. The air duct adjustment assembly of the wind resistance exerciser according to claim 2, wherein, The adjustment disk (2) can also be rotated to a third position, and the first position, the second position and the third position are set sequentially in the rotation direction of the adjustment disk (2); The second spiral (201) gradually increases the flow area of ​​the air inlet (103) during the process of the adjustment disk (2) rotating from the first position to the second position. The second spiral (201) gradually decreases the flow area of ​​the air inlet (103) during the process of the adjustment disk (2) rotating from the second position to the first position. The flow area of ​​the air inlet (103) remains unchanged during the process of the adjustment disk (2) rotating between the second position and the third position.

4. The air duct adjustment assembly of the wind resistance exerciser according to claim 3, wherein, During the rotation of the regulating disc (2) between the second and third positions, the second spiral strip (201) always coincides with the first spiral strip (102), so that the flow area of ​​the air inlet (103) remains unchanged during the rotation of the regulating disc (2) between the second and third positions.

5. The air duct adjustment assembly of the wind resistance exerciser according to claim 1, wherein, The outer shell (1) also has a first reinforcing rib (104), which extends outward from the connecting post (101) and is connected to the first spiral strip (102); And / or the adjusting disc (2) has a collar (202) and a second reinforcing rib (203), the collar (202) passing through the connecting post (101), and the second reinforcing rib (203) extending outward from the collar (202) and connected to the second spiral strip (201).

6. The air duct adjustment assembly of the wind resistance exerciser according to claim 1, wherein, There are two of each of the first spiral strips (102) and the second spiral strips (201), and they correspond one-to-one. The two first spiral strips (102) are symmetrical about the axis of the connecting post (101), and the two second spiral strips (201) are symmetrical about the axis of the connecting post (101).

7. The air duct adjustment assembly of the wind resistance exerciser according to claim 1, wherein, The outer casing (1) has two stop bars (105) spaced apart in the rotation direction of the adjustment disk (2). The adjustment disk (2) has a stop rod (204). When the adjustment disk (2) rotates, the stop rod (204) moves between the two stop bars (105) and can abut against the two stop bars (105) respectively to restrict the rotation of the adjustment disk (2). The outer casing (1) has a stop scale line (106) between the two stop bars (105).

8. The air duct adjustment assembly of the wind resistance exerciser according to claim 1, wherein, The connecting column (101) has a detachable fixed connection of a central part (107) and a connecting part (108). The first spiral strip (102) is integrally formed on the central part (107) and extends spirally from the inside to the outside around the central part (107). The adjusting disc (2) passes through the connecting part (108) and abuts against the central part (107) and the connecting part (108) respectively.

9. The air duct adjustment assembly of the wind resistance exerciser according to claim 8, wherein, A damping ring (3) is provided between the adjusting disc (2) and the central part (107) and / or the connecting part (108).

10. The air duct adjustment assembly of the wind resistance exerciser according to claim 1, wherein, The outer shell (1) has a positioning ring (109) protruding from its surface and surrounding the first spiral strip (102). The adjusting disc (2) is attached to the outer shell (1) and has a positioning groove (205) for the positioning ring (109) to be inserted.

Images