Sliding self-locking mounting structure and seat

Abstract

A sliding self-locking installation structure comprises a fixed seat and a sliding seat, and the fixed seat is provided with a plurality of locking positions, an unlocking position and a restoring position; the sliding seat comprises a seat body, a locking tongue and an elastic piece; the locking tongue is provided with a sharp part clamped with the locking position, a middle part connected with the elastic piece and a tail part movably connected with the seat body; a first site is arranged on the surface of the tip portion, an elastic piece is arranged on the base body, and a second site connected with the first site in a clamped mode is arranged at the end of the elastic piece. Through structural optimization of the fixed seat and the sliding seat, the locking adjustment function of the sliding seat on the fixed seat is achieved, the sliding seat can move from one end of the fixed seat to the other end of the fixed seat without resistance in the specified direction, rapid resetting of the sliding seat is completed, and the device has the advantages of being smooth in adjustment, rapid in resetting and long in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of seats, and particularly relates to a sliding self-locking installation structure and a seat. Background Art

[0002] In some products, a combination of linear sliding connection and locking mechanism is adopted to realize the sliding adjustment and positioning of one component. For example, to improve the comfort of a seat, a headrest is often provided on the upper part of the seat back, and the headrest is designed to be adjustable in height and angle to further meet the requirements of different users.

[0003] The document with the authorization announcement number CN214341228U discloses a sliding self-locking reed installation structure, which includes a slider. A strip-shaped reed is arranged on the sliding mating surface of the slider. Both ends of the reed are respectively abutted against the slider. The middle part of the reed is bent and protrudes outward to form a positioning protrusion. The two ends of the reed are respectively a fixed end and a sliding end. The fixed end is fixedly connected with the slider, and the sliding end is limited to slide along the surface of the slider.

[0004] The principle of this device is that the reed cooperates with the rack in the chute to achieve automatic locking and self-unlock when subjected to a certain thrust. However, this device still has the following problems: when it is necessary to move from one end of the chute to the other end, the reed needs to pass through all the racks on the way, which not only has a large resistance, but also causes great wear to the rack and the reed. Eventually, the rack will lose the locking effect on the reed. Therefore, the use fluency of this device is not high, the service life is short, and the practicability is not strong. Summary of the Utility Model

[0005] Aiming at the above existing problems, one of the purposes of the present utility model is to provide a sliding self-locking installation structure. Through the structural optimization of the fixed seat and the sliding seat, the locking and adjusting function of the sliding seat on the fixed seat is realized, and the sliding seat can move from one end of the fixed seat to the other end without resistance in the specified direction, completing the rapid reset of the sliding seat, so that the device has the advantages of smooth adjustment, rapid reset, and long service life.

[0006] In order to achieve the above purpose, the technical solution of the present utility model is as follows:

[0007] A sliding self-locking installation structure includes a fixed seat and a sliding seat. The fixed seat has a plurality of locking positions, an unlocking position, and a restoring position. The sliding seat includes a seat body, a locking tongue, and an elastic member provided on the seat body to make the locking tongue tend to move towards the locking position. The locking tongue has a tip that engages with the locking position, a middle portion connected to the elastic member, and a tail portion movably connected to the seat body. A first point is provided on the surface of the tip, and an elastic piece is provided on the seat body. A second point that engages and connects with the first point is provided at the end of the elastic piece. When the tip contacts the unlocking position, it forces the tip to disengage from the locking position and the first point finally engages and connects with the second point. When the tip contacts the restoring position, it forces the first point to disconnect from the second point and the tip finally engages with the locking position.

[0008] As a further preference of the present utility model, an installation notch for installing the elastic piece is provided on the seat body.

[0009] As a further preference of the present utility model, the first point is a engaging groove, the second point is an engaging protrusion, and the connection between the bottom surface and the side wall of the engaging groove is smoothly transitioned.

[0010] As a further preference of the present utility model, fixing posts for detachably connecting with the elastic member are provided on the seat body and the middle portion.

[0011] As a further preference of the present utility model, a guide groove with the unlocking position and the restoring position at both ends respectively is provided on the fixed seat, and a limiting protrusion slidably connected with the guide groove is provided on the surface of the tip.

[0012] As a further preference of the present utility model, the unlocking position and the restoring position are respectively two guiding inclined surfaces provided on the side walls of both ends of the guide groove.

[0013] As a further preference of the present utility model, a stop bar located on the inner bottom surface of the guide groove and having a first passage for the limiting protrusion to pass through between its end and the unlocking position is further provided on the fixed seat.

[0014] As a further preference of the present utility model, the end of the stop bar near the unlocking position has a guiding bevel edge.

[0015] As a further preference of the present utility model, a second passage for the limiting protrusion to pass through is provided between the end of the stop bar away from the unlocking position and the restoring position.

[0016] The second object of the present utility model is to provide a seat with the above-mentioned sliding self-locking installation structure.

[0017] Compared with the prior art, the beneficial effects of the present utility model include:

[0018] Through the structural optimization of the fixed seat and the sliding seat, the present utility model not only realizes the locking and adjusting function of the sliding seat on the fixed seat, but also enables the sliding seat to move from one end of the fixed seat to the other end without resistance in a specified direction, completing the rapid reset of the sliding seat, making the device have the advantages of smooth adjustment, rapid reset, and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 is a schematic diagram of the connection structure of the present utility model.

[0020] Attached Figure 2 is a three-dimensional structure diagram of the sliding seat of the present utility model from the bottom view angle.

[0021] Attached Figure 3 is a schematic diagram of a partial structure of the present utility model.

[0022] Attached Figure 4 is a structural diagram of the fixed seat of the present utility model from the top view angle.

[0023] BRIEF DESCRIPTION OF THE DRAWINGS: Fixed seat 1, sliding seat 2;

[0024] Locking position 11, unlocking position 12, restoring position 13, guide groove 14, stop bar 15, guiding bevel 16;

[0025] Seat body 21, locking tongue 22, elastic member 23, first position point 24, elastic piece 25, second position point 26, mounting notch 27, fixing column 28, limiting protrusion 29. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance

[0028] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, terms such as "arrangement" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection: it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] This embodiment provides a sliding self-locking installation structure, which includes a fixed seat 1 and a sliding seat 2. The fixed seat 1 has several locking positions 11, an unlocking position 12, and a restoring position 13; the sliding seat 2 includes a seat body 21, a locking tongue 22, and an elastic member 23 provided on the seat body 21 and configured to make the locking tongue 22 have a tendency to move towards the locking position 11; the locking tongue 22 has a tip that engages with the locking position 11, a middle part connected to the elastic member 23, and a tail movably connected to the seat body 21; a first site 24 is provided on the surface of the tip, an elastic piece 25 is provided on the seat body 21, and a second site 26 that engages with the first site 24 is provided at the end of the elastic piece 25; when the tip contacts the unlocking position 12, it forces the tip to disengage from the locking position 11 and finally the first site 24 engages with the second site 26, and when the tip contacts the restoring position 13, it forces the first site 24 to disengage from the second site 26 and finally the tip engages with the locking position 11.

[0031] Among them, a self-locking protrusion is provided on the tip to engage with any one of the locking positions 11 to complete the locking of the locking tongue. When the locking tongue is stressed, the self-locking protrusion can disengage from one locking position 11 and spring into the next locking position 11 under the action of the elastic member 23 to complete the position adjustment of the locking tongue; the tail is hinged to the seat body 21 through a hinge component, and the hinge component is a conventional structure, so it will not be elaborated here.

[0032] Among them, a linear track matching the movement trajectory of the locking tongue is further provided on the fixed seat 1, and a limiting post slidably connected to the linear track is provided on the seat body 21. The purpose of such setting is to ensure the stability of the movement of the locking tongue.

[0033] Among them, fixing posts 28 for detachably connecting the elastic member 23 are provided on the seat body 21 and the middle part. The elastic member 23 can be a spring or a plate body with an arc structure. In this embodiment, it is preferably a spring, and both ends of the spring are detachably connected to the fixing posts 28 on both sides.

[0034] Among them, an installation notch 27 for installing the elastic piece 25 is provided on the seat body 21; the first site 24 is a clamping groove, the second site 26 is a clamping protrusion, and the connection between the bottom surface and the side wall of the clamping groove is smoothly transitioned. The installation notch 27 is further preferably a through hole. One end of the elastic piece 25 is connected to the side wall of the notch, and the other end is a free end. The second site 26 is arranged at the end of the free end; when the tip contacts the unlocking position 12, the tip disengages from the locking position 11, and the first site 24 moves in the direction close to the free end of the elastic piece 25 accordingly. The first site 24 finally engages and locks with the second site 26, and the elastic member 23 cannot push the locking tongue 22 to make the tip re-engage with the locking position 11. The process of the first site 24 and the second site 26 locking with each other is the process of directly pulling the locking tongue from the end close to the unlocking position 12 to the end close to the restoring position 13. During this process, the tip of the locking tongue always disengages from the locking position 11, reducing the wear between the two and improving the service life of the self-locking installation structure. It also includes the process of releasing the clamping lock between the first site 24 and the second site 26. This process mainly includes: when the tip contacts the restoring position 13, the first site 24 is forced to move towards the connection end of the elastic piece 25, and the engagement between the first site 24 and the second site 26 is released. Under the combined action of the elastic piece 23, the tip is re-"sprung" into the locking position 11 close to the restoring position 13, and further pulling the locking tongue can adjust the relative position.

[0035] In another embodiment, the first site 24 is a clamping protrusion, and the second site 26 is a clamping groove. When the tip contacts the unlocking position 12, the tip disengages from the locking position 11, and during the movement of the locking tongue, the clamping protrusion causes the elastic piece 25 to deform under force. When the clamping protrusion finally engages and connects with the clamping groove, the force on the elastic piece 25 decreases and it returns to its original state. At this time, the clamping protrusion is locked by the clamping groove. When the tip contacts the restoring position 13, the clamping protrusion 24 is forced to move towards the connection end of the elastic piece 25, and the engagement between the clamping protrusion 24 and the clamping groove 26 is released. Under the combined action of the elastic piece 25 and the elastic member 23, the tip is re-"sprung" into the locking position 11 close to the restoring position 13, and further pulling the locking tongue can adjust the relative position.

[0036] Embodiment 2

[0037] This embodiment optimizes the structure on the basis of Embodiment 1, specifically as follows:

[0038] The fixed seat 1 is provided with a guide groove 14 having an unlocking position 12 and a restoring position 13 at both ends respectively. At this time, the unlocking position 12 and the restoring position 13 are two guiding inclined surfaces provided on the groove side walls at both ends of the guide groove 14. At this time, the locking tongue body, namely the tip, the middle part and the tail part, are all located at the upper end of the guide groove 14 and are parallel to the guide groove 14. A limiting protrusion 29 slidably connected to the guide groove 14 is provided on the surface of the tip.

[0039] In this embodiment, when the limiting protrusion 29 contacts the unlocking position 12, the limiting protrusion 29 moves along the guiding inclined surface, and the locking tongue 22 moves in the same manner as in Embodiment 1, that is, the tip first disengages from the locking position 11, and the first site 24 is finally engaged and connected with the second site 26; similarly, when the limiting protrusion 29 contacts the restoring position 13, it forces the first site 24 to disengage from the second site 26 and the tip is finally engaged and connected with the locking position 11.

[0040] As a further preference of this embodiment, the fixed seat 1 is further provided with a stop bar 15 located on the inner bottom surface of the guide groove 14 and having a first passage for the limiting protrusion 29 to pass through between the end and the unlocking position 12; there is a second passage for the limiting protrusion 29 to pass through between the end of the stop bar 15 far from the unlocking position 12 and the restoring position 13, and the end of the stop bar 15 close to the unlocking position 12 has a guiding bevel 16. Among them, the setting of the stop bar 15 divides the guide groove 14 into two parallel channels, and the heads and tails of the two parallel channels are connected through the first passage and the second passage respectively. When the first site 24 is engaged and connected with the second site 26, the limiting protrusion 29 also enters the parallel channel far from the locking position 11 through the first passage.

[0041] During the process of the first site 24 being engaged and connected with the second site 26 to lock the position of the locking tongue 22, if the first site 24 accidentally disengages from the second site 26, the limiting protrusion 29 will also be blocked by the stop bar 15, so that the locking tongue continues to maintain the state of disengaging from the locking position, avoiding the accidental situation of reset failure.

[0042] Embodiment 3

[0043] This embodiment provides a seat having the sliding self-locking installation structure of Embodiment 1 or Embodiment 2. Generally speaking, the sliding self-locking installation structure can be arranged on the headrest part of the seat, or can be arranged on the backrest part of the seat, or even can be arranged on the support leg part of the seat to realize the flexible adjustment of each position of the seat.

[0044] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but they will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A sliding self-locking installation structure, comprising a fixed seat (1) and a sliding seat (2), characterized in that, The fixed seat (1) has a plurality of locking positions (11), an unlocking position (12) and a restoring position (13); the sliding seat (2) includes a seat body (21), a locking tongue (22), and an elastic member (23) disposed on the seat body (21) and configured to urge the locking tongue (22) to move towards the locking position (11). The locking tongue (22) has a tip that engages with the locking position (11), a middle portion connected to the elastic member (23), and a tail portion movably connected to the seat body (21). A first site (24) is provided on the surface of the tip, an elastic piece (25) is provided on the seat body (21), and a second site (26) that engages with the first site (24) is provided at the end of the elastic piece (25). When the tip contacts the unlocking position (12), it forces the tip to disengage from the locking position (11) and the first site (24) finally engages with the second site (26). When the tip contacts the restoring position (13), it forces the first site (24) to disengage from the second site (26) and the tip finally engages with the locking position (11).

2. The sliding self-locking installation structure according to claim 1, characterized in that, An installation notch (27) for installing the elastic piece (25) is provided on the seat body (21).

3. The sliding self-locking installation structure according to claim 1, wherein, The first site (24) is a engaging groove, the second site (26) is an engaging protrusion, and the connection between the bottom surface and the side wall of the engaging groove has a smooth transition.

4. The self-locking sliding mounting structure according to claim 1, characterized in that, Fixing posts (28) for detachably connecting with the elastic member (23) are provided on the seat body (21) and the middle portion.

5. The sliding self-locking installation structure according to claim 1, characterized in that, A guide groove (14) with the unlocking position (12) and the restoring position (13) at both ends is provided on the fixed seat (1), and a limiting protrusion (29) slidably connected to the guide groove (14) is provided on the surface of the tip.

6. A sliding self-locking installation structure according to claim 5, characterized in that The unlocking position (12) and the restoring position (13) are respectively two guiding inclined surfaces provided on the side walls of the two ends of the guide groove (14).

7. A sliding self-locking installation structure according to claim 5, characterized in that, A stop bar (15) located on the inner bottom surface of the guide groove (14) and having a first passage for the limiting protrusion (29) to pass through between the end and the unlocking position (12) is further provided on the fixed seat (1).

8. A sliding self-locking installation structure according to claim 7, characterized in that, The end of the stop bar (15) close to the unlocking position (12) has a guiding bevel edge (16).

9. The self-locking sliding mounting structure according to claim 7, characterized in that, A second passage for the limiting protrusion (29) to pass through is provided between the end of the stop bar (15) away from the unlocking position (12) and the restoring position (13).

10. A seating furniture, characterized in that, It includes the sliding self-locking installation structure according to any one of claims 1 to 9.

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