Positioning device and seat thereof

Abstract

The utility model relates to a positioning device and a seat thereof, the positioning device is suitable for being positioned on a rod piece, and the positioning device comprises a sliding sleeve which is provided with a through hole, is sleeved on the outer diameter of the rod piece and can slide relative to the rod piece along the axial direction of the rod piece; the handle is pivoted to the sliding sleeve, and the handle can rotate relative to the sliding sleeve to be in an opening state or a buckling state; the movable bolt group is arranged on the outer diameter of the sliding sleeve, the movable bolt group is provided with an elastic block, a reset spring, a bolt, a pressure spring and an elastic sheet, the bolt is accommodated in the through hole of the sliding sleeve, and the bolt forms an interference fixing state when being inserted into any positioning groove in the rod piece; when the handle rotates relative to the sliding sleeve to be buckled, the handle enables the plug pin to be selectively inserted into any multiple positioning grooves in the rod piece through the elastic piece and the compressed spring to form an interference state, and therefore the positioning device is limited to be positioned on the rod piece.

Description

Technical Field

[0001] The utility model provides a positioning device and a seat thereof, in particular to a positioning device and a seat thereof which are convenient for adjusting positions. Background Art

[0002] If the back is not properly and comfortably supported during prolonged sitting, it can not only cause back pain but can also lead to permanent spinal deformities. To accommodate occupants of varying heights, existing chairs allow users to adjust the relative position of the back and seat cushions. For example, this method involves rotating a bolt to secure or loosen the seat cushion. However, this method is difficult for users to operate.

[0003] Another adjustment method involves simply using quick-release fasteners to increase friction, allowing users to quickly adjust or loosen the seat. However, these fasteners, without the aid of a physical object, may lack sufficient support when bearing a person's weight. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide a more novel positioning device suitable for positioning on a rod, the rod having a plurality of positioning grooves, and the rod defining an axial direction, the quick-release positioning device comprising: a sleeve, which is hollow and tubular, and the inner diameter of the sleeve is fitted over the outer diameter of the rod, and the sleeve can slide relative to the rod along the axial direction of the rod, the sleeve having a through hole; a handle, pivotally connected to the sleeve, the handle being rotatable relative to the sleeve to present an open state or a locked state; and a movable latch assembly, which is arranged at The outer diameter of the sliding sleeve, the movable pin assembly has an elastic block, a return spring, a pin, a compression spring and a spring piece, wherein the elastic block accommodates the pin, the return spring, the compression spring and the spring piece, the pin is accommodated in the through-hole of the sliding sleeve, and the pin forms an interference state when inserted into any of the positioning grooves on the rod; wherein, when the handle rotates relative to the sliding sleeve and presents the buckled state, the handle forms the interference state when the pin is selectively inserted into any of the positioning grooves on the rod via the spring piece and the compression spring, thereby limiting the positioning device from being positioned on the rod.

[0005] In a preferred embodiment, a receiving groove is provided on the outer side of the sliding sleeve, and the movable latch assembly is received in the receiving groove of the sliding sleeve.

[0006] In a preferred embodiment, the handle has a protrusion and a pivot axis, and the protrusion is defined to have a first surface, which is the surface of the protrusion that abuts the spring when the handle is in the engaged state, and the pivot axis is defined to be separated from the first surface by a first radial length.

[0007] In a preferred embodiment, the protrusion has a second surface, which is the surface of the protrusion that abuts the spring when the handle is in the open state. The second surface is continuous with the first surface and defines a second radial length from the pivot axis to the second surface, and the second radial length is smaller than the first radial length.

[0008] Another object of the present invention is to provide a chair, comprising: a first rod having a plurality of positioning grooves, and the first rod defining an axial direction; a support member provided on a second rod; and a positioning device provided at the end of the second rod for limiting the positioning device to be positioned on the first rod, the quick-release positioning device comprising: a sleeve, which is hollow and tubular, and the inner diameter of the sleeve is fitted on the outer diameter of the first rod, and can slide relative to the first rod along the axial direction of the first rod, the sleeve having a through hole; a handle pivotally connected to the sleeve, the handle being rotatable relative to the sleeve to present an open state or a locked state; and a movable latch assembly provided on the outer diameter of the sleeve, the movable latch assembly having There is an elastic block, a return spring, a latch, a compression spring and a spring sheet, wherein the elastic block accommodates the latch, the return spring, the compression spring and the spring sheet, and the latch is accommodated in the through-hole of the sliding sleeve, and the latch forms an interference state when inserted into any of the positioning slots on the first rod; wherein, when the handle rotates relative to the sliding sleeve to present the engaged state, the handle causes the latch to selectively insert into any of the positioning slots on the first rod via the spring sheet and the compression spring to form the interference state, thereby limiting the positioning device to be positioned on the first rod; when the handle rotates relative to the sliding sleeve to present the open and closed state, the return spring provides elastic force to allow the latch to automatically withdraw from the multiple positioning slots, thereby allowing the latch to escape from the interference state.

[0009] In a preferred embodiment, the support member is a chair cushion or a chair back.

[0010] The above description of the content of the present invention and the following description of the implementation methods are used to demonstrate and explain the principles of the present invention and provide further explanation of the scope of the patent application of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following describes embodiments of the present invention in detail with reference to the accompanying drawings. It should be noted that, in accordance with standard industry practice, various features are not drawn to scale and are for illustrative purposes only. In fact, the dimensions of the components may be arbitrarily increased or decreased to clearly illustrate the features of the embodiments of the present invention.

[0012] Figure 1 This is a three-dimensional schematic diagram of a preferred embodiment of the seat of the present invention;

[0013] Figure 2 This is an exploded schematic diagram of a preferred embodiment of the positioning device of the present utility model;

[0014] Figure 3 It is a cross-sectional schematic diagram of the utility model when the latch is out of interference;

[0015] Figure 4 It is a cross-sectional schematic diagram of the sliding sleeve of the utility model sliding relative to the rod;

[0016] Figure 5 This is a cross-sectional diagram of the plug of the utility model forming an interference state.

[0017] In the picture:

[0018] 1. First rod; 10. Positioning groove; 2. Support member; 20. Second rod; 3. Positioning device; 30. Sliding sleeve;

[0019] 300, through hole; 302, receiving groove; 32, handle; 320, protrusion; 322, pivot axis; 324, first surface;

[0020] 326, second surface; 34, movable latch assembly; 340, elastic block; 342, return spring; 344, latch;

[0021] 346, compression spring; 348, spring; R1, first radial length; R2, second radial length. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0023] The following text may use "at least one" to describe the number of the described objects, but unless otherwise explicitly stated, it should not be limited to the case where the number is "only one". The following text may also use terms such as "formed", "joined", "interfacing", "set", and "configured" to describe the relative positional relationship between multiple layers, structures, and components, but unless otherwise explicitly stated, it may cover the case where the layers, structures, and components are in direct contact with each other, or where one or more intermediate media or other layers, structures, and components may exist between the layers, structures, and components. The following text may also use terms such as "first" and "second", but this is mainly to distinguish between elements or operations described with the same terms, and is not used to limit the order or sequence of the elements or operations.

[0024] See also Figures 1 to 5 shown. Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the seat of the present invention. Figure 2 This is an exploded schematic diagram of a preferred embodiment of the positioning device of the present invention. Figure 3 It is a cross-sectional schematic diagram of the utility model when the latch is out of interference. Figure 4 It is a cross-sectional schematic diagram of the sliding sleeve sliding relative to the rod member of the utility model. Figure 5 This is a cross-sectional diagram of the plug of the utility model forming an interference state.

[0025] like Figure 1 As shown, the chair of the present invention comprises a first rod 1, a support member 2, and a positioning device 3. The first rod 1 has a plurality of positioning slots 10 and defines an axial direction. The support member 2 is mounted on a second rod 20. The positioning device 3 is mounted at the end of the second rod 20 to constrain the positioning device to the first rod 1. The support member 2 can be a seat cushion or a chair back.

[0026] like Figures 2 to 5 As shown, the quick release positioning device 3 includes: a sliding sleeve 30, a handle 32 and a movable latch assembly 34. The sliding sleeve 30 is hollow and tubular, and the inner diameter of the sliding sleeve 30 is fitted on the outer diameter of the first rod 1, and the sliding sleeve 30 can slide relative to the first rod 1 along the axial direction of the first rod 1 (as shown in FIG. Figure 4 As shown). The sliding sleeve 30 has a through hole 300. Figure 2 As shown, a receiving groove 302 is defined on the outer side of the sliding sleeve 30 , and the movable latch assembly 34 is received in the receiving groove 302 of the sliding sleeve 30 .

[0027] The handle 32 is pivotally connected to the receiving groove 302 of the sliding sleeve 30. The handle 32 can rotate relative to the sliding sleeve 30 to present an open state (such as Figure 3 as shown) or a snap-on state (as shown Figure 5 shown).

[0028] See also Figure 5 The handle 32 has a protrusion 320 and a pivot axis 322, and the protrusion is defined as having a first surface 324. The first surface 324 is the surface of the protrusion that contacts the spring when the handle is in the engaged state, and a first radial length R1 is defined between the pivot axis 322 and the first surface 324.

[0029] See also Figure 3 As shown. The protrusion 320 has a second surface 326. The second surface 326 is the surface of the protrusion 320 that contacts the elastic piece 348 when the handle 32 is in the open state. Figure 3 and Figure 5 As shown, in cross section, the second surface 326 and the first surface 324 are continuous curved surfaces. A second radial length R2 is defined between the pivot axis 322 and the second surface 326. The second radial length R2 is smaller than the first radial length R1.

[0030] The movable latch assembly 34 is disposed within the receiving groove 302 on the outer diameter of the sliding sleeve 30. The movable latch assembly 34 comprises an elastic block 340, a return spring 342, a latch 344, a compression spring 346, and a spring clip 348. The elastic block 340 accommodates the return spring 342, the latch 344, the compression spring 346, and the spring clip 348. The latch 344 is received in the through-hole 300 of the sliding sleeve 30. The through-hole 300, the return spring 342, the latch 344, the compression spring 346, and the spring clip 348 are arranged in sequence approximately radially along the sliding sleeve 30. When inserted into any of the positioning slots 10 on the first rod 1, the latch 344 forms an interference state.

[0031] See also Figure 5 When the handle 32 rotates relative to the sliding sleeve 30 to assume the engaged state, the first surface 324 of the handle 32 abuts against the elastic sheet 348 , and the elastic sheet 348 and the compression spring 346 cause the latch 344 to selectively insert into any of the positioning slots 10 on the first rod 1 , thereby constraining the positioning device 3 from being positioned on the first rod 1 .

[0032] See also Figure 3 When the handle 32 rotates relative to the sliding sleeve 30 to assume the open / closed state, the second surface 326 of the handle 32 abuts against the elastic piece 348. The return spring 342 provides elastic force to automatically withdraw the latch 344 from the plurality of positioning slots 10, thereby releasing the latch 344 from the interference state.

[0033] Then, if Figure 4 As shown, the user can slide the sleeve 30 relative to the first rod 1, and after the sleeve 30 is adjusted to a suitable relative position with the first rod 1, repeat the above steps of rotating the handle 32 relative to the sleeve 30 to make the handle 32 present the engaged state.

[0034] In summary, the positioning device and its seat of the present invention provide a user with a method of achieving physical interference by rotating the handle 32 relative to the sleeve 30 to achieve the engaged state and inserting the latch 344 into the plurality of positioning slots 10. Furthermore, when the handle 32 is rotated relative to the sleeve 30 to achieve the open / closed state, the return spring 342 provides a spring force that automatically withdraws the latch 344 from the plurality of positioning slots 10, thereby releasing the latch 344 from the interfering state. In this way, the user can rotate the handle 32 relative to the sleeve 30 to create or release the interfering state between the latch 344 and the plurality of positioning slots 10.

[0035] The above-described embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A positioning device, suitable for positioning on a rod, the rod having a plurality of positioning grooves, and the rod defining an axial direction, characterized in that: The positioning device comprises: a sliding sleeve in a hollow tubular shape, wherein the inner diameter of the sliding sleeve is fitted over the outer diameter of the rod, and the sliding sleeve is capable of sliding relative to the rod along the axial direction of the rod, and the sliding sleeve has a through hole; a handle pivotally connected to the sliding sleeve, the handle being capable of rotating relative to the sliding sleeve to present an open state or a closed state; and a movable latch assembly, disposed on the outer diameter of the sliding sleeve, the movable latch assembly comprising an elastic block, a return spring, a latch, a compression spring, and a spring piece, wherein the elastic block accommodates the latch, the return spring, the compression spring, and the spring piece, the latch is accommodated in the through-hole of the sliding sleeve, and the latch forms an interference state when inserted into any of the positioning slots on the rod; When the handle rotates relative to the sleeve and presents the engaged state, the handle causes the latch to be selectively inserted into any one of the positioning slots on the rod via the spring sheet and the compression spring to form the interference state, thereby limiting the positioning device from being positioned on the rod; when the handle rotates relative to the sleeve and presents the engaged state, the return spring provides elastic force to allow the latch to automatically withdraw from the multiple positioning slots, thereby allowing the latch to escape from the interference state.

2. The positioning device according to claim 1, wherein An accommodating groove is provided on the outer side of the sliding sleeve, and the movable latch assembly is accommodated in the accommodating groove of the sliding sleeve.

3. The positioning device according to claim 1, wherein The handle has a protrusion and a pivot axis, and the protrusion is defined to have a first surface. The first surface is the surface of the protrusion that abuts against the elastic sheet when the handle is in the buckled state, and the pivot axis is defined to be separated from the first surface by a first radial length.

4. The positioning device according to claim 3, wherein: The protrusion has a second surface, which is the surface on the protrusion that abuts the spring when the handle is in the open state. The second surface is continuous with the first surface and defines a second radial length from the pivot axis to the second surface, and the second radial length is smaller than the first radial length.

5. A seat, characterized in that: Include: a first rod having a plurality of positioning grooves; a supporting member disposed on a second rod; and A positioning device as claimed in any one of claims 1 to 4.

6. The seat according to claim 5, wherein: The supporting component is a chair cushion or a chair back.

7. The seat according to claim 5, wherein: The positioning device is arranged at the end of the second rod.

8. The seat according to claim 5, wherein: The inner diameter of the sliding sleeve is sleeved on the outer diameter of the first rod and can slide relative to the first rod along the axial direction of the first rod.

9. The seat according to claim 5, wherein: The latch forms the interference state when inserted into any one of the positioning slots on the first rod.

10. The seat according to claim 5, wherein: When the handle rotates relative to the sliding sleeve to present the engaged state, the handle causes the latch to selectively insert into any one of the positioning slots on the first rod via the elastic sheet and the compression spring to form the interference state, thereby limiting the positioning device to be positioned on the first rod.

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