Self-adaptive supporting structure for front and back locking of waist support

Abstract

The utility model relates to a self-adaptive supporting structure for front and back locking of a waist support, which is characterized by comprising a base, a mounting groove with a notch facing one side of the waist support is arranged in the base, a connecting rod capable of sliding in the mounting groove is arranged in the mounting groove, one end of the connecting rod extends out of the mounting groove to be connected with the waist support, and the other end of the connecting rod extends out of the mounting groove to be connected with the waist support. A mounting groove is formed in the base, a spring is arranged in the mounting groove, the spring is used for providing supporting force for the connecting rod, a locking assembly is arranged on the outer side of the base, and the locking assembly is used for locking the connecting rod. The utility model has the following advantages and effects: the position of the waist support can be fixed so as to improve the leaning comfort.

Description

TECHNICAL FIELD

[0001] The utility model relates to office chair technical field, concretely relates to a kind of adaptive support structure for front and rear locking of waist support. BACKGROUND

[0002] Seat is widely used in daily life, work a kind of furniture, many kinds, function is various, meets different use demand.Currently, part seat is installed on chair back with waist rest, support to user waist back by waist rest, to be able to more conform to the physiological curve of user, improve the comfort of use.

[0003] For example, the Chinese patent technical document with the announcement number CN219920654U discloses an adjustable waist support office chair, which comprises an office chair body and a waist support assembly, the office chair body comprises a backrest and a stand respectively arranged on both sides of the backrest, the waist support assembly comprises a waist pad unit and a mounting base arranged on the back side of the waist pad unit, the mounting base comprises a mounting bottom plate connected with the waist pad unit and connecting pieces arranged on both sides of the mounting bottom plate, the connecting pieces include an extension part and a connecting clamp head arranged at the end of the extension part, which can be movably connected with the stand.

[0004] In the above technical solution, by setting spring between waist support and backrest, so that user can compress spring when leaning, so that the force generated by the deformation of spring can act on user's waist back through waist support, to realize full support to user's waist while realizing the adjustment of the distance between waist support and backrest, to adapt to users of different weights.

[0005] However, in the process of actual use, it is found that the support force of waist support to waist back mainly comes from the compression of spring, and when user adjusts the leaning posture, the compression amplitude of spring will change, so that the support force of waist support to waist will change frequently, thereby affecting the comfort during leaning. SUMMARY

[0006] In view of the deficiencies of the prior art, the utility model aims to provide a self-adaptive support structure for front and rear locking of waist support, which can fix the position of waist support to improve the comfort of leaning.

[0007] To achieve the above object, the utility model provides a kind of adaptive support structure for front and rear locking of waist support, it is characterized in that, including pedestal, the installation slot of the notch towards the side setting of waist support is equipped in the pedestal, the connecting rod being slidably arranged in the installation slot is equipped in the installation slot, one end of the connecting rod extends to the outside of installation slot for being connected with waist support, spring is equipped in the installation slot, the spring is used to provide support force for connecting rod, the outside of pedestal is equipped with locking assembly, and the locking assembly is used to lock connecting rod.

[0008] The utility model further provides: the opening of being communicated with installation slot is equipped on the pedestal, the locking assembly includes cover, the cover is covered in pedestal, and the installation cavity that is communicated with opening is formed between cover and pedestal, locking rod is rotatably connected in the installation cavity, locking spring is equipped above the opening, the locking rod is extruded to locking spring by rotating, so that locking spring is pressed on connecting rod, and the locking of connecting rod is realized.

[0009] The utility model further provides: the bottom pressure protrusion of protruding is equipped on the periphery of locking rod, and the bottom pressure protrusion is extruded to locking spring by the rotation of locking rod.

[0010] The utility model further provides: the top limiting protrusion is equipped on the opposite side of bottom pressure protrusion on the periphery of locking rod, and the inside of cover is equipped with the accommodation slot for the rotation of top limiting protrusion.

[0011] The utility model further provides: the locking slot is equipped on the side of connecting rod towards opening, the locking slot is multiple and is spaced apart, the protruding locking protrusion is equipped on locking spring, and the locking protrusion is adapted with locking slot.

[0012] The utility model further provides: the two ends of locking rod respectively extend outward as connecting end, and handle sleeve is fixed on the connecting end.

[0013] Compared with prior art, the utility model has the beneficial effects that:

[0014] Through the spring being arranged in installation slot, when user leans on waist support, the adjustment of the distance between waist support and chair back can be realized by the compression of spring, to adapt to user of different weight, and the locking component is arranged, the connecting rod can be locked, to realize the locking of waist support position, so that the position of waist support can be memorized, to facilitate leaning again, and the supporting force of waist support to waist can be changed when user adjusts leaning posture, to affect the comfort during leaning, so that the technical problem that the supporting force of waist support to waist can be changed when user adjusts leaning posture in prior art is effectively solved, to improve the comfort of leaning. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the internal structure schematic view of the utility model;

[0017] Figure 3 It is the cooperation relationship schematic view of the locking rod and locking spring plate in the utility model;

[0018] Figure 4 It is the specific structure schematic view of the base in the utility model;

[0019] Figure 5 It is the local enlarged structure schematic view of A in the utility model. DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be described clearly and completely below with reference to the drawings, obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] As Figures 1 to 5The utility model discloses a kind of self-adapting support structures for front and rear locking of waist support, including pedestal 1, the mounting groove 101 of being provided with notch towards the side of waist support is equipped in pedestal 1, connecting rod 2 is equipped in mounting groove 101, connecting rod 2 can slide in mounting groove 101, one end of connecting rod 2 extends to mounting groove 101 outside for being connected with waist support, spring 3 is equipped in mounting groove 101, spring 3 is used to provide supporting force for connecting rod 2, the outside of pedestal 1 is equipped with locking assembly, locking assembly is used to lock connecting rod 2, when user leans on waist support, by the compression of spring 3, the adjustment of the spacing between waist support and chair back can be realized, to adapt to user of different weight, and, by the locking assembly of being set, connecting rod 2 can be locked, to realize the locking of waist support position, so that the position of waist support can be memorized, to facilitate leaning again, while, waist support supporting force to waist can be frequently changed when user adjusts leaning posture, and the comfort during leaning is affected.

[0023] In the embodiment, the opening 102 communicated with the mounting groove 101 is provided on the pedestal 1, the specific structure of the locking assembly includes the cover 4, the cover 4 is covered on the pedestal 1, and the mounting cavity 5 communicated with the opening 102 is formed between the cover 4 and the pedestal 1, the locking rod 6 is rotatably connected in the mounting cavity 5, the locking spring 7 is provided above the opening 102, the locking rod 6 is pressed by rotating to make the locking spring 7 press on the connecting rod 2, and the locking of the connecting rod 2 is realized, the principle that the locking assembly locks the connecting rod 2 is that the locking spring 7 is pressed by rotating the locking rod 6, so that the connecting rod 2 is pressed by the locking spring 7 to realize the limiting of the connecting rod 2, thereby realizing the locking of the connecting rod 2, and the locking spring 7 is fixed on the pedestal 1;

[0024] The structure that the locking rod 6 presses the locking spring 7 is that the bottom pressing protrusion 21 is provided on the outer periphery of the locking rod 6, the bottom pressing protrusion 21 is close to or away from the locking spring 7 by rotating the locking rod 6, so that the bottom pressing protrusion 21 can gradually contact the locking spring 7 and press the locking spring 7 in the process of being close to the locking spring 7, so that the locking spring 7 can be deformed to press the connecting rod 2 and realize the limiting of the connecting rod 2, so that the locking of the connecting rod 2 can be realized only by rotating the locking rod 6, thereby improving the convenience of operation, and the locking spring 7 can be reset to release the connecting rod 2 by making the bottom pressing protrusion 21 away from the locking spring 7;

[0025] In the embodiment, a top limiting protrusion 22 is arranged on the opposite side of the bottom top pressing protrusion 21 of the locking rod 6, and the inner side of the cover 4 is provided with a giving slot 41 for the rotation of the top limiting protrusion 22. Through the arrangement of the giving slot 41 and the top limiting protrusion 22, the rotation angle of the locking rod 6 can be limited, so as to facilitate the locking of the connecting rod 2 by rotating the locking rod 6.

[0026] In the embodiment, in order to ensure the stability of the locking of the connecting rod 2 by the locking spring 7, the connecting rod 2 is provided with a locking groove 23 on the side facing the opening 102, the locking grooves 23 are multiple and arranged at intervals, the locking spring 7 is provided with a protruding locking protrusion 71, the locking protrusion 71 is matched with the locking groove 23, so that when the locking spring 7 is pressed against the connecting rod 2, the locking protrusion 71 can be clamped into the locking groove 23 through the arrangement of the locking protrusion 71 and the locking groove 23, so that the connecting rod 2 is limited in the radial direction by the pressure applied to the connecting rod 2, and the locking protrusion 71 and the locking groove 23 can also limit the connecting rod 2 in the axial direction, so as to improve the stability of the locking of the connecting rod 2.

[0027] In the embodiment, the two ends of the locking rod 6 are respectively extended outward as connecting ends 61, and the handle cover 8 is fixed on the connecting ends 61, so that the user can rotate the locking rod 6 through the arrangement of the handle cover 8, and the connecting rod 2 can be locked through the locking rod 6.

[0028] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. An adaptive support structure for front and rear locking of a lumbar support, characterized in that, The utility model provides a waist support locking device, including base, be equipped with the mounting groove of the side setting of the notch of base, be equipped with the connecting rod of the sliding of mounting groove in, the one end of connecting rod extends to the mounting groove outside for with waist support connects, be equipped with spring in the mounting groove, spring is used for providing support force for connecting rod, the outside of base is equipped with locking assembly, locking assembly is used for locking connecting rod, be equipped with the opening of the communication of mounting groove on base, locking assembly includes cover, cover covers up in base, and forms the installation cavity of the communication with opening between base, rotatory connection has locking rod in installation cavity, the top of opening is equipped with locking elastic sheet, locking rod passes through rotation to extrude locking elastic sheet, makes locking elastic sheet top pressure in connecting rod, realizes the locking of connecting rod.

2. An adaptive support structure for front and rear locking of a lumbar support according to claim 1, characterized in that, The outer periphery of the locking rod is provided with a protruding bottom pressure protrusion.

3. An adaptive support structure for front and rear locking of a lumbar support according to claim 2, characterized in that, The outer periphery of the locking rod is provided with a protruding bottom pressure protrusion.

4. An adaptive support structure for front and rear locking of a lumbar support according to claim 1, wherein, The outer periphery of the locking rod is provided with a protruding bottom pressure protrusion.

5. An adaptive support structure for front and rear locking of a lumbar support according to claim 1, wherein, The connecting rod is provided with a locking groove on the side facing the opening. The two ends of the locking rod extend outward as connecting ends, and the connecting ends are fixed with handle covers.

Images