Pull handle structure, adjustable seat and fitness equipment

Abstract

The utility model provides a pull handle structure, adjustable seat and fitness equipment, pull handle structure includes fixed mount, pull handle, bolt and transmission subassembly, the fixed mount is equipped with the guide seat that extends transversely, pull handle rear end is articulated on the fixed mount, the bolt is matched on the guide seat and moves along the guide seat, and the transmission subassembly is equipped with the pull handle. The transmission assembly comprises a transmission rod, a first joint, an adapter and a second joint, the front end of the transmission rod is hinged to the rear end of the pull handle, the rear end of the transmission rod is connected with the front end of the adapter through the first joint, and the rear end of the adapter is connected with the bolt through the second joint; when the pull handle is stressed to rotate backwards, the bolt can be driven to move transversely through the transmission assembly, the operation mode of pulling the pull handle backwards better conforms to the force exerting habit of a user, operation is more convenient, and the hand feeling is more comfortable.

Description

A pull handle structure, an adjustable seat, and fitness equipment Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a handle structure, an adjustable seat, and fitness equipment. Background Technology

[0002] Existing fitness equipment usually has adjustment devices to adjust seat position, weight, and other functions. The operation method is usually to turn or plug.

[0003] The existing Chinese utility model patent with publication number CN219090974U discloses a connecting mechanism for adjusting fitness equipment, including a bracket, a hinge seat set on the bracket, a long bench and a short bench seat respectively hinged to the hinge seat, and an arc-shaped steel plate hinged to one side of the bottom end of the long bench and the short bench seat. The outer wall of the arc-shaped steel plate is evenly provided with through holes. An adjustment mechanism is also provided on one side of the bracket. The locking rod of the adjustment mechanism is inserted into the through hole of the arc-shaped steel plate for positioning. After the locking rod is pulled outward to disengage from the through hole, the angle of the long bench or the short bench seat can be adjusted.

[0004] When users sit on a bench or stool, it is inconvenient to operate the adjustment mechanism on one side of the support by inserting and pulling it horizontally. The operation method does not conform to the user's force application habits, resulting in an uncomfortable operating experience. Summary of the Invention

[0005] The purpose of this utility model is to provide a pull handle structure, an adjustable seat, and fitness equipment to solve the technical problem that the adjustment operation of existing fitness equipment brings discomfort to users.

[0006] According to a first aspect of the present invention, a pull handle structure is provided, comprising:

[0007] The mounting bracket is equipped with a laterally extending guide seat;

[0008] The handle has its rear end hinged to the fixed frame via a first transverse pivot.

[0009] A pin that engages with and moves along the guide seat;

[0010] The transmission assembly includes a transmission rod, a first joint, an adapter, and a second joint.

[0011] The front end of the transmission rod is hinged to the rear end of the handle, the rear end of the transmission rod is connected to the front end of the adapter through the first joint, and the rear end of the adapter is connected to the pin through the second joint.

[0012] In one embodiment of the present invention, the pin has a locked position and an unlocked position. When the handle is rotated backward by force, it pushes the transmission assembly to move backward and drives the pin to move from the locked position to the unlocked position along the guide seat.

[0013] In one embodiment of the present invention, an elastic reset member is provided between the guide seat and the pin, and the pin is configured to move from the locked position to the unlocked position against the elastic force of the elastic reset member.

[0014] In one embodiment of the present invention, the guide seat includes a sleeve and a nut, the nut being threadedly connected to one end of the sleeve;

[0015] The pin includes a mating portion and a connecting portion forming a stepped shaft. A stepped surface is formed between the mating portion and the connecting portion. The end of the connecting portion away from the mating portion extends from the nut and is movably connected to the second joint. The mating portion slides with the inner wall of the sleeve. The end of the mating portion away from the connecting portion forms a locking end. The locking end extends out of the sleeve when in the locked position.

[0016] The elastic reset element is a spring and is sleeved on the connecting part. One end of the spring is engaged with the nut and the other end is engaged with the stepped surface.

[0017] In one embodiment of this utility model, the front end of the handle is higher than the rear end, and / or,

[0018] The front end of the handle forms a horizontally bent handle portion.

[0019] In one embodiment of this utility model, the handle includes a long rod, a rotating sleeve, and a connecting plate. The rotating sleeve is fixedly connected to the rear end of the long rod, the connecting plate is fixedly connected to the top of the rotating sleeve, the first rotating shaft is installed on the rotating sleeve, and the front end of the transmission rod is hinged to the connecting plate.

[0020] In one embodiment of this utility model, the adapter is hinged to the fixed frame via a vertical second pivot. The adapter has an L-shaped structure, and the second pivot is connected between the front end and the rear end of the adapter. The front end of the adapter is hinged to the first joint around a vertically extending axis, and the rear end of the adapter is hinged to the second joint around a vertically extending axis.

[0021] In one embodiment of this utility model, the first joint is a spherical bearing, and / or the second joint is a roller chain.

[0022] According to a second aspect of the present invention, an adjustable seat is also provided, including a seat, wherein the seat is provided with an adjustment component, and the aforementioned pull handle structure, wherein a pin of the pull handle structure is used to lock or unlock the adjustment component.

[0023] According to a third aspect of the present invention, a fitness device is also provided, including the aforementioned handle structure.

[0024] One beneficial effect of this utility model is that:

[0025] The pull handle structure provided by this utility model includes a fixed frame, a pull handle hinged to the fixed frame, a pin, and a transmission component. When the pull handle is rotated backward under force, it can drive the pin to move laterally through the transmission component to perform locking or unlocking actions, thereby realizing the adjustment function. The operation of pulling the pull handle backward is more in line with the user's force application habits, making the operation more convenient and the feel more comfortable.

[0026] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0028] Figure 1 is a schematic diagram of an embodiment of the pull handle structure provided by this utility model in the unlocking position;

[0029] Figure 2 is a schematic diagram of an embodiment of the pull handle structure provided by this utility model in the locking position;

[0030] Figure 3 is an exploded view of the guide seat, pin, elastic reset component, and second joint of the handle structure in Figure 1.

[0031] Figure 4 is an exploded view of the handle, first rotating shaft and transmission rod of the handle structure in Figure 1;

[0032] Figure 5 is an exploded view of the transmission assembly of the handle structure in Figure 1;

[0033] Figure 6 is a structural schematic diagram of an embodiment of the adjustable seat provided by this utility model.

[0034] The reference numerals and their corresponding component names in the figure are as follows:

[0035] 10. Fixing bracket; 11. Guide seat; 12. U-shaped plate; 121. Mounting hole; 111. Sleeve; 112. Nut;

[0036] 20. Pull handle; 21. Long rod; 22. Spindle sleeve; 23. Connecting plate; 24. Handle section;

[0037] 30. Pin; 31. Mating part; 32. Connecting part; 33. Stepped surface; 34. Locking end;

[0038] 40. Transmission assembly; 41. Transmission rod; 42. First joint; 43. Adapter; 44. Second joint;

[0039] 401. First shoulder bolt; 402. Second shoulder bolt; 403. Second metallurgical sleeve; 404. First nylon cap; 405. Second nylon cap; 406. Nut; 421. Inner ring; 422. Outer ring; 423. Short rod;

[0040] 50. Elastic reset component;

[0041] 60. First rotating shaft; 61. First metallurgical sleeve; 62. First screw; 63. First spring washer; 64. First flat washer;

[0042] 70. Second shaft; 71. Second screw; 72. Self-lubricating bearing; 73. Second spring washer; 74. Second flat washer;

[0043] 80. Seat; 81. Fixed seat; 82. Backrest; 83. Hinge shaft;

[0044] 90. Adjusting component; 91. Pin hole. Detailed Implementation

[0045] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0046] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0047] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0048] In this article, terms such as "horizontal," "vertical," "front," "back," "up," "down," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0049] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0050] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0051] In this document, unless otherwise stated, "multiple" means two or more.

[0052] In this document, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meaning of these terms in this document based on the specific circumstances.

[0053] Wherever possible, the various aspects and features described and illustrated in this specification may be applied individually, and these individual aspects may serve as the subject matter of a divisional application.

[0054] Figures 1 to 6 show an embodiment of a handle structure provided by this utility model.

[0055] The handle structure includes a fixing frame 10, a handle 20, a pin 30, and a transmission assembly 40.

[0056] The fixed frame 10 is provided with a laterally extending guide seat 11. The handle 20 has a front end and a rear end. The rear end of the handle 20 is hinged to the fixed frame 10 via a first lateral pivot 60 and can rotate relative to the fixed frame 10. The pin 30 is engaged with the guide seat 11 and moves laterally along the guide seat 11.

[0057] The transmission assembly 40 is connected between the handle 20 and the pin 30. The transmission assembly 40 includes a transmission rod 41, a first joint 42, an adapter 43, and a second joint 44 connected in sequence. The front end of the transmission rod 41 is hinged to the rear end of the handle 20, the rear end of the transmission rod 41 is connected to the front end of the adapter through the first joint 42, and the rear end of the adapter 43 is connected to the pin 30 through the second joint.

[0058] When the handle 20 is rotated under force, it can drive the pin 30 to move laterally along the guide seat 11 via the transmission assembly 40. The pin 30 is configured to perform locking or unlocking actions through lateral movement, thereby realizing the adjustment function.

[0059] The pull handle structure provided by this utility model can be applied to the adjustable seat of fitness equipment to adjust the position or angle of the seat. When the user is sitting on the seat, pulling the handle 20 backward is more in line with the user's force exertion habits, making operation more convenient and comfortable.

[0060] The pull handle structure can also be applied to other adjustable parts of fitness equipment, such as adjusting pedals and adjusting weights; it can also be applied to other adjustable devices, such as office chairs.

[0061] In some embodiments of this invention, the pin 30 has a locked position and an unlocked position. The pin 30 moves along the guide seat 11 between the locked position and the unlocked position. When the handle 20 is rotated backward under force, it pushes the transmission assembly 40 to move backward, and drives the pin 30 to move along the guide seat 11 from the locked position to the unlocked position.

[0062] In some embodiments of this utility model, as shown in FIG3, an elastic reset member 50 is provided between the guide seat 11 and the pin 30. The pin 30 moves from the locked position to the unlocked position against the elastic force of the elastic reset member 50. The elastic reset member 50 can be a spring, an elastic sheet, or other elastic components.

[0063] The user pulls the handle 20 backward, overcoming the elastic force of the elastic reset member 50 and moving the pin 30 to the unlocked position. When the user releases the handle 20, the elastic reset member 50, under the action of elastic restoring force, drives the pin 30 back to the locked position, making it more convenient to use and improving security.

[0064] In one specific embodiment, as shown in Figures 2 and 3, the guide seat 11 includes a sleeve 111 and a nut 112. The sleeve 111 extends laterally and is fixedly connected to the fixing frame 10, and the nut 112 is threadedly connected to one end of the sleeve 111. A pin 30 moves within the sleeve 111. The pin 30 includes a mating portion 31 forming a stepped shaft and a connecting portion 32. A stepped surface 33 is formed between the mating portion 31 and the connecting portion 32, and the diameter of the mating portion 31 is larger than the diameter of the connecting portion 32. The end of the connecting portion 32 away from the mating portion 31 extends from the nut 112 and is movably connected to the second joint 44. The nut 112 has a through hole in the middle for the connecting portion 32 to extend out, and the outer wall of the nut 112 has external threads. One end of the sleeve 111 has internal threads that mate with the nut 112. The mating part 31 slides into the inner wall of the sleeve 111, and the end of the mating part 31 away from the connecting part 32 forms a locking end 34, which extends out of the sleeve 111 when in the locked position.

[0065] The elastic reset element 50 is a spring and is sleeved on the connecting part 32 of the pin 30. One end of the spring mates with the nut 112 and the other end mates with the stepped surface 33. The handle 20 drives the connecting part 32 of the pin 30 to be pulled outward through the transmission assembly 40. The pin 30 compresses the spring and moves from the locked position to the unlocked position. The locking end 34 retracts into the sleeve 111.

[0066] In some embodiments of this utility model, as shown in Figures 1 and 2, the front end of the handle 20 is higher than the rear end. When the user is sitting in the adjustable seat facing forward, the front end of the handle 20 allows the user to easily apply force backward to the handle 20, causing the handle 20 to rotate backward around the first pivot 60 at the rear end. The front end of the handle 20 is positioned for easy gripping by the user, and the handle 20 can be a straight or curved rod. Specifically, the front end of the handle 20 is located above and in front of the rear end. When the user pulls the handle 20 backward, the handle 20 rotates backward and upward around the first pivot 60, causing the latch 30 to move from the locked position to the unlocked position.

[0067] In some embodiments of this utility model, as shown in FIG4, the front end of the pull handle 20 forms a horizontally bent handle portion, which makes it convenient for the user to grip and improves the comfort of operating the pull handle 20.

[0068] In one specific embodiment, continuing to refer to FIG4, the handle 20 includes a long rod 21, a pivot sleeve 22, and a connecting plate 23. The pivot sleeve 22 is fixedly connected to the rear end of the long rod 21, and the connecting plate 23 is fixedly connected to the top of the pivot sleeve 22. A first pivot 60 is mounted on the pivot sleeve 22. The handle portion 24 of the handle 20 is located at the front end of the long rod 21. According to the lever principle, the long rod 21 makes the handle 20 easier to operate. An angle is formed between the long rod 21 and the connecting plate 23, and the connecting plate 23 extends upward, with the transmission rod 41 hinged to the top of the connecting plate 23.

[0069] In detail, the fixing frame 10 is provided with a U-shaped plate 12, which has two spaced upright plates, each with a mounting hole 121. The first rotating shaft 60 is fitted in the rotating shaft sleeve 22 and can rotate around its own axis. The opposite ends of the rotating shaft sleeve 22 are respectively provided with first metallurgical sleeves 61, and the two ends of the first rotating shaft 60 extend out of the first metallurgical sleeves 61 and are respectively installed with first screws 62. The first screws 62 pass through the mounting holes 121 of the U-shaped plate 12 to fix the first rotating shaft 60 to the U-shaped plate 12. The head of the first screw 62 is located on the outside of the upright plate of the U-shaped plate 12. A first spring washer 63 and a first flat washer 64 are also provided between the head of the first screw 62 and the corresponding upright plate to prevent the first screw 62 from loosening and to strengthen the connection.

[0070] It should be noted that the connection structure between the U-shaped plate 12 and the first rotating shaft 60 is only an example and is not intended to limit the present utility model. Other structures that can connect the first rotating shaft 60 and the fixing frame 10 fall within the protection scope of the present utility model.

[0071] In one specific embodiment, the front end of the transmission rod 41 is hinged to the connecting plate 23 via a transverse first shoulder bolt 401. The rear end of the transmission rod 41 is hinged to the first joint 42 via a transverse second shoulder bolt 402.

[0072] In detail, the transmission rod 41 extends in the front-rear direction, and a through hole is laterally opened at the front end of the transmission rod 41. Second metallurgical sleeves 403 are respectively provided at both ends of the through hole. The handle 20 has two opposing connecting plates 23, each with a connecting plate through hole. The front end of the transmission rod 41 is located between the two connecting plates 23. A first shoulder bolt 401 passes through the through hole at the front end of the transmission rod 41, the two second metallurgical sleeves 403, and the connecting plate through holes of the two connecting plates 23. A first nylon cap 404 is fixedly connected to the end of the first shoulder bolt 401.

[0073] A through hole is opened laterally at the rear end of the transmission rod 41. The second shoulder bolt 402 passes through the first joint 42 and the through hole at the rear end of the transmission rod 41, and a second nylon cap 405 is fixedly connected to the end of the second shoulder bolt 402.

[0074] In one specific embodiment, the first joint 42 is a spherical plain bearing, which includes an inner ring 421 and an outer ring 422 connected together. A short rod 423 is fixedly connected to the outer ring 421, and the short rod 423 extends vertically. A second shoulder bolt 402 is connected to the inner ring 421 of the spherical plain bearing. The short rod 423 of the spherical plain bearing can be a threaded rod and is connected to the front end of the adapter 43 by a nut 406. The spherical plain bearing and the front end of the adapter 43 can rotate about the axis of the short rod 423, thus achieving a hinged connection.

[0075] In some embodiments of this utility model, the adapter 43 is hinged to the fixed frame 10 via a vertical second pivot 70. The adapter 43 has an L-shaped structure, and the second pivot 70 is located between the front end and the rear end of the adapter 43. The adapter 43 is rotatable about the axis of the second pivot 70. The front end of the adapter 43 is hinged to the first joint 42 about a vertically extending axis, and the rear end of the adapter 43 is hinged to the second joint 44 about a vertically extending axis.

[0076] Specifically, the bottom end of the second rotating shaft 70 is connected to the fixed frame 10, and the top end of the second rotating shaft 70 is hinged to the adapter 43. The adapter 43 is provided with a central through hole for connecting the second rotating shaft 70, and a self-lubricating bearing 72 that mates with the second rotating shaft 70 is installed in the central through hole. The adapter 43 is connected to the top end of the second rotating shaft 70 by a second screw 71. A second spring washer 73 and a second flat washer 74 are also provided between the second screw 71 and the adapter 43 to prevent the second screw 71 from loosening. The central through hole can be located at the corner of the adapter 43. When the transmission rod 41 drives the front end of the adapter 43 to move backward through the first joint 42, the rear end of the adapter 43 can drive the pin 30 to move laterally through the second joint 44.

[0077] In one embodiment, the second joint 44 is a roller chain. The roller chain has two connecting posts, both of which extend vertically. One connecting post is hinged to the rear end of the adapter 43, and the other connecting post is hinged to the rear end of the pin 30.

[0078] Taking the application of a pull handle structure to an adjustable seat as an example, the implementation principle is as follows:

[0079] When the handle 20 is in the initial position, the pin 30 is in the locked position, locking the seat position. When the user pulls the handle 20 backward, the handle 20 rotates backward around the first pivot 60, and drives the transmission rod 41 and the first joint 42 to move backward through the connecting plate 23. The first joint 42 drives the adapter 43 to rotate around the second pivot 70. The rear end of the adapter 43 drives the pin 30 to overcome the elastic force of the elastic reset member 50 and move laterally along the guide seat 11 to reach the unlocked position.

[0080] After the user releases the handle 20, the elastic reset member 50 drives the pin 30 from the unlocked position back to the locked position under the action of the elastic restoring force. The pin 30 pushes the adapter 43 to rotate around the second shaft 70 through the second joint 44. The front end of the adapter 43 drives the transmission rod 41 to move forward through the first joint 42. The transmission rod 41 drives the handle 20 to rotate around the first shaft 60 back to the initial position.

[0081] This utility model also provides an adjustable seat, including a seat 80, an adjustment component 90 on the seat 80, and the pull handle structure described above. The pin 30 of the pull handle structure is used to lock or unlock the adjustment component 90.

[0082] Specifically, the seat 80 includes a fixed base 81 and a backrest 82. The bottom of the backrest 82 is connected to the fixed base 81 via a hinge shaft 83, and the angle of the backrest 82 is adjustable. An adjusting component 90 is fixedly connected to the rear side of the backrest 82. The adjusting component 90 has multiple pin holes 91, which are distributed along the rotation trajectory of the backrest. When the backrest 82 rotates around the hinge shaft 83, the multiple pin holes 91 sequentially pass through positions corresponding to the pins 30 of the pull handle structure. The seat 80 can be mounted on the fixing bracket 10 of the pull handle structure.

[0083] When the lever mechanism's pin 30 is in the locked position, it inserts into one of the pin holes 91, locking the backrest 82. When the user sits in the seat 80 and needs to adjust the angle of the backrest 82, they pull the lever 20 backward, causing the pin 30 to move to the unlocked position and disengage from the pin hole 91. At this point, the backrest 82 can be rotated to a comfortable position. Then, the lever 20 is released, and the pin 30 returns to the locked position under the action of the elastic reset member 50, inserting into the pin hole 91 corresponding to the other position, locking the backrest 82.

[0084] This utility model also provides a fitness device, including the above-described handle structure of this utility model.

[0085] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A pull handle structure, characterized in that, include: A fixed frame, which is provided with a laterally extending guide seat; a handle, the rear end of which is hinged to the fixed frame via a first lateral pivot. A pin engages with the guide seat and moves along the guide seat; a transmission assembly includes a transmission rod, a first joint, an adapter, and a second joint, wherein the front end of the transmission rod is hinged to the rear end of the handle, the rear end of the transmission rod is connected to the front end of the adapter via the first joint, and the rear end of the adapter is connected to the pin via the second joint.

2. The handle structure according to claim 1, characterized in that, The pin has a locked position and an unlocked position. When the handle is rotated backward under force, it pushes the transmission assembly to move backward and drives the pin to move from the locked position to the unlocked position along the guide seat.

3. The handle structure according to claim 2, characterized in that, An elastic reset member is provided between the guide seat and the pin, and the pin is configured to move from the locked position to the unlocked position against the elastic force of the elastic reset member.

4. The handle structure according to claim 3, characterized in that, The guide seat includes a sleeve and a nut, the nut being threadedly connected to one end of the sleeve; the pin includes a mating portion forming a stepped shaft and a connecting portion, a stepped surface being formed between the mating portion and the connecting portion, the end of the connecting portion away from the mating portion extending from the nut and being movably connected to the second joint, the mating portion slidingly engaging with the inner wall of the sleeve, the end of the mating portion away from the connecting portion forming a locking end, the locking end extending out of the sleeve when in the locked position; the elastic reset member is a spring and sleeved on the connecting portion, one end of the spring engaging with the nut and the other end engaging with the stepped surface.

5. The handle structure according to claim 1, characterized in that, The front end of the handle is higher than the rear end, and / or the front end of the handle forms a laterally bent handle portion.

6. The handle structure according to claim 5, characterized in that, The handle includes a long rod, a rotating sleeve, and a connecting plate. The rotating sleeve is fixedly connected to the rear end of the long rod, and the connecting plate is fixedly connected to the top of the rotating sleeve. The first rotating shaft is installed on the rotating sleeve, and the front end of the transmission rod is hinged to the connecting plate.

7. The handle structure according to claim 1, characterized in that, The adapter is hinged to the fixed frame via a vertical second pivot. The adapter has an L-shaped structure, and the second pivot is connected between the front end and the rear end of the adapter. The front end of the adapter is hinged to the first joint around a vertically extending axis, and the rear end of the adapter is hinged to the second joint around a vertically extending axis.

8. The handle structure according to any one of claims 1 to 7, characterized in that, The first joint is a spherical bearing, and / or the second joint is a roller chain.

9. An adjustable seat, characterized in that, The device includes a seat, which is provided with an adjustment component, and a pull handle structure as described in any one of claims 1 to 8, wherein the pin of the pull handle structure is used to lock or unlock the adjustment component.

10. A fitness device, characterized in that, The handle structure includes any one of claims 1 to 8.

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