Pre-locking structure of detachable wall-mounted seat

Abstract

The utility model discloses a pre-locking structure of a detachable wall-hung seat, which is characterized in that a chair component can turn back and forth between a horizontal position and a vertical position around a rotating shaft component, a fixed seat is provided with a vertical bolt inserted with the rotating shaft component, the upper end of a supporting leg is rotatably connected with the chair component, one end of a connecting rod is rotatably connected with the supporting leg, and the other end of the connecting rod is connected with the rotating shaft component. One end of the connecting rod is provided with a containing groove, the other end of the connecting rod is provided with a convex handle, the convex handle is rotationally arranged in the containing groove of the fixed seat, an opening is formed in the upper portion of the containing groove, the convex handle can move out of the containing groove from the opening when the chair assembly is overturned to the vertical position, the bottom of the chair assembly is provided with a pre-tightening lock column, and the connecting rod is provided with a pre-tightening lock hole. If the supporting leg is pulled, the pre-tightening lock column is clamped in the pre-tightening lock hole clamp, and the protruding handle can be prevented from entering the opening of the containing groove accidentally. And when the chair assembly is directly turned over, the pre-tightening lock column can smoothly retreat from the pre-tightening lock hole, so that the chair assembly has the advantage of preventing the convex handle from accidentally separating from the accommodating groove when the supporting leg is pulled.

Description

Technical Field

[0001] The utility model relates to a detachable wall-mounted seat pre-locking structure. Background Art

[0002] The wall-mounted seat in the bathroom is installed on the wall and can be flipped and folded to reduce the space occupied when not in use. Early wall-mounted seats did not have a quick disassembly function. If the user does not want to use it for a long time in the future, or when cleaning, it is impossible to simply and quickly remove the wall-mounted seat. For this reason, the applicant has developed a wall-mounted seat that is easy to disassemble and apply for a Chinese invention patent, application number 202410050888.3. The detachable wall-mounted seat has one end of the connecting rod rotatably connected to the support leg, and a lug is provided at the other end, and the lug is movably provided in the receiving groove of the connecting piece. Since the lug is a flat structure, the receiving groove is a V-shaped groove and the lower end is a circular cavity structure, therefore, when the wall-mounted seat is flipped to a vertical position, the lug can just be taken out of the receiving groove, thereby removing the wall-mounted seat.

[0003] However, when the user is opening the wall-mounted chair, if the user directly opens the wall-mounted chair by flipping the chair seat, the rotation of the chair seat will drive the handle to rotate, and the handle can be well maintained in the circular cavity at the lower end of the receiving groove. If the user pulls the supporting legs to open the wall-mounted chair, the supporting legs can easily support the connecting rod and cause the handle to move out of the receiving groove, resulting in a safety hazard when the wall-mounted chair is opened and used. Utility Model Content

[0004] The utility model provides a detachable wall-mounted seat pre-locking structure, which overcomes the shortcomings of the background technology. The technical solution adopted by the utility model to solve the technical problem is:

[0005] The detachable wall-mounted seat pre-locking structure is characterized in that the chair assembly can be flipped back and forth between a horizontal position and a vertical position around a rotating shaft assembly, the fixed seat is provided with a vertical pin plugged into the rotating shaft assembly, the upper end of the supporting leg is rotatably connected to the chair assembly, one end of the connecting rod is rotatably connected to the supporting leg, and the other end is provided with a protruding handle, the protruding handle is rotatably arranged in a receiving groove of the fixed seat, an opening is provided above the receiving groove, and the protruding handle can be moved out of the receiving groove from the opening when the chair assembly is flipped to the vertical position, a pre-tightening locking column is provided at the bottom of the chair assembly, and a pre-tightening locking hole is provided on the connecting rod, when the chair assembly is in the vertical position, the pre-tightening locking column is inserted into the pre-tightening locking hole, when the supporting leg is pulled, the pre-tightening locking column is engaged with the pre-tightening locking hole to prevent the chair assembly from flipping open, and when the chair assembly is pulled to flip to the horizontal position, the pre-tightening locking column exits the pre-tightening locking hole.

[0006] The chair assembly, support legs, connecting rod, and fixed seat form a mechanism similar to a four-bar linkage. Since the pre-tightening lock column on the chair assembly is inserted into the pre-tightening lock hole on the connecting rod in the vertical position, that is, in the folded state, if the chair assembly is attempted to be opened by pulling the support leg, the pre-tightening lock column will be stuck in the pre-tightening lock hole due to the rapid change in the angle of the connecting rod relative to the chair assembly, and the connecting rod and the chair assembly cannot be opened further, thereby preventing the protruding handle from accidentally entering the opening of the receiving groove. When the operator directly flips the chair assembly, the chair assembly drives the connecting rod to flip together, and the connecting rod is slowly released relative to the change in the angle of the chair assembly, thereby ensuring that the pre-tightening lock column can smoothly exit the pre-tightening lock hole, and finally the chair assembly flips to a horizontal position. Therefore, the pre-locking structure of the detachable wall-mounted chair of the present application has the advantage of preventing the protruding handle from accidentally leaving the receiving groove due to pulling the support leg.

[0007] In a preferred embodiment: a limiting bead is provided on the top surface of the fixed seat, and a vertical section giving groove and a rotating section giving groove are provided on the chair assembly, and a locking step is formed between the vertical section giving groove and the rotating section giving groove. When the chair assembly is in a vertical position, the limiting bead is located in the vertical section giving groove, and the locking step locks the limiting bead. During the process of flipping the chair assembly to a horizontal position, the limiting bead squeezes through the locking step and enters the rotating section giving groove.

[0008] When the chair assembly is in the vertical position, the locking step locks the limiting bead, which can prevent the chair assembly from falling automatically. When it needs to be opened for use, the user applies a flipping force to the chair assembly. Driven by the flipping force, the limiting bead forcibly squeezes through the locking step and enters the yielding groove of the rotating section, so that the chair assembly can be flipped to the horizontal position without resistance. Therefore, the limiting bead can cooperate with the locking step so that the chair assembly will not fall automatically when it is in the vertical position. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0010] Figure 1 A three-dimensional schematic diagram of the wall-mounted seat during the opening process is drawn.

[0011] Figure 2 A schematic cross-section of the wall-mounted seat in a vertical position is depicted.

[0012] Figure 3 A three-dimensional schematic diagram of the fixing seat is shown.

[0013] Figure 4 A three-dimensional schematic diagram of a chair assembly is shown.

[0014] Figure 5 A cross-sectional schematic diagram of the wall-mounted seat during the folding process is shown.

[0015] Figure 6Another schematic cross-sectional view of the wall-mounted seat in a vertical position is shown. DETAILED DESCRIPTION

[0016] Combine the following Figures 1 to 6 , the pre-locking structure of the detachable wall-mounted seat is explained.

[0017] The chair assembly 10 can be flipped back and forth between a horizontal position and a vertical position around the rotating shaft assembly 20. The horizontal position is the position of the open use state, and the vertical position is the folded position. The fixed seat 30 is provided with a vertical latch 32 plugged into the rotating shaft assembly 20. The upper end of the support leg 40 is rotatably connected to the chair assembly 10. One end of the connecting rod 50 is rotatably connected to the support leg 40, and the other end is provided with a convex handle (not shown). The convex handle is a structure with flattened sides of a circular shaft. The convex handle is rotatably arranged in the receiving groove 34 of the fixed seat 30. A V-shaped opening 36 is provided above the receiving groove 34. When the chair assembly 10 is flipped to the vertical position, the convex handle can be moved out of the receiving groove 34 from the opening 36. A pre-tightening lock column 12 is provided at the bottom of the chair assembly 10, and a pre-tightening lock hole 54 is provided on the connecting rod 50. When the chair assembly is in the vertical position, the pre-tightening lock column 12 is inserted into the pre-tightening lock hole 54.

[0018] When the chair assembly 10 needs to be switched to a horizontal position for use, if the support leg 40 is directly pulled, the pre-tightening lock column 12 is engaged with the pre-tightening lock hole 54 to prevent the chair assembly from flipping open. If the chair assembly 10 is pulled to flip to a horizontal position, that is, the chair assembly is operated, the pre-tightening lock column 12 can smoothly exit the pre-tightening lock hole 54.

[0019] Preferably, a limiting bead 38 is provided on the top surface of the fixing seat 30, and the chair assembly 10 is provided with a vertical section giving groove 14 and a rotating section giving groove 16, and a locking step 18 is formed between the vertical section giving groove 14 and the rotating section giving groove 16. When the chair assembly 10 is in a vertical position, the limiting bead 38 is located in the vertical section giving groove 14, and the locking step 18 locks the limiting bead 38, so that the chair assembly will not fall automatically without external force. When external force intervenes to drive the chair assembly 10 to flip to a horizontal position, the limiting bead 38 squeezes through the locking step 18 and enters the rotating section giving groove 16.

Claims

1. A detachable wall-mounted chair pre-locking structure, wherein the chair assembly can be flipped back and forth between a horizontal position and a vertical position around a rotating shaft assembly, a fixing seat is provided with a vertical latch plugged with the rotating shaft assembly, an upper end of a supporting leg is rotatably connected to the chair assembly, one end of a connecting rod is rotatably connected to the supporting leg, and a convex handle is provided at the other end, the convex handle is rotatably arranged in a receiving groove of the fixing seat, an opening is provided above the receiving groove, and the convex handle can be moved out of the receiving groove from the opening when the chair assembly is flipped to a vertical position, characterized in that: A pre-tightening lock column is provided at the bottom of the chair assembly, and a pre-tightening lock hole is provided on the connecting rod. When the chair assembly is in a vertical position, the pre-tightening lock column is inserted into the pre-tightening lock hole. When the supporting leg is pulled, the pre-tightening lock column is engaged with the pre-tightening lock hole to prevent the chair assembly from flipping open. When the chair assembly is flipped to a horizontal position, the pre-tightening lock column exits the pre-tightening lock hole.

2. The pre-locking structure of the detachable wall-mounted seat according to claim 1 is characterized in that: A limiting bead is provided on the top surface of the fixed seat, and a vertical section giving groove and a rotating section giving groove are provided on the chair assembly. A locking step is formed between the vertical section giving groove and the rotating section giving groove. When the chair assembly is in a vertical position, the limiting bead is located in the vertical section giving groove, and the locking step locks the limiting bead. During the process of flipping the chair assembly to a horizontal position, the limiting bead squeezes through the locking step and enters the rotating section giving groove.

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