Three-section type locking mechanism of sleeping berth support drawer

Abstract

The utility model discloses a three-section type locking mechanism of a sleeping berth support drawer, which comprises a sleeping berth support and a drawer connected with guide rails on two sides inside the sleeping berth support in a sliding mode, a buckle handle is arranged on the front face of the drawer, fixed limiting plates are arranged on two sides inside the sleeping berth support, and limiting grooves are arranged on the top faces of the fixed limiting plates at intervals. Movable limiting plates are hinged to the two sides of the drawer respectively, slopes are arranged at the front ends of the movable limiting plates, limiting blocks are arranged at the rear ends of the movable limiting plates, springs are hung on the upper portions of the side faces, opposite to the drawer, of the movable limiting plates, and the other ends of the springs extend obliquely downwards to be hung on the outer side of the drawer. A rotating shaft extending towards the two sides is arranged in a buckle of the drawer, and lock tongues are fixed to the two ends of the rotating shaft respectively and located over the slope of the movable limiting plate. According to the utility model, the drawer of the sleeping berth bracket can be locked in three sections, so that the drawer can be completely opened or semi-opened in the opening process, the opening state can be realized according to the requirements of customers, and meanwhile, the safety performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sleeper turnover technical field, concretely relates to a three-section type locking mechanism of sleeper support drawer. BACKGROUND

[0002] In recent years, domestic host factories rapidly launch high-end flagship models to meet the growing long-distance load logistics demand, sleeper support drawers have entered the introduction period and have formed a certain market scale.

[0003] The inventor found in the process of realizing the utility model that:

[0004] The market demand of drawers such as vehicle-mounted refrigerators, tool boxes and sundry boxes is large, but the drawers are in a completely open or completely closed state due to bumping, vibration, sudden braking and the like during transportation, and do not have a limiting function. SUMMARY

[0005] In order to solve the problems in the prior art, the utility model provides a three-section type locking mechanism of sleeper support drawer, which can make the sleeper support drawer be in different open states, and prevent the drawer from being accidentally completely opened through the limiting device, thereby reducing accidental injuries such as pinching hands.

[0006] Therefore, the technical scheme of the utility model is as follows: a three-section type locking mechanism of sleeper support drawer, comprising a sleeper support, a drawer slidingly connected with the two side guide rails inside the sleeper support, a hand knob provided on the front face of the drawer, a fixed limiting plate provided above the two side guide rails inside the sleeper support, four spaced limiting grooves provided on the top face of the fixed limiting plate at both ends and in the middle,

[0007] The two sides of the drawer are respectively hinged with movable limiting plates having a gap reserved on the side face of the fixed limiting plate, the front end of the movable limiting plate is provided with a slope with gradually decreasing height, the bottom of the rear end of the movable limiting plate is provided with a limiting block corresponding to the limiting groove near one side of the fixed limiting plate, a spring is hung on the upper side of the opposite side of the movable limiting plate, and the other end of the spring extends downward and is hung on the outside of the drawer.

[0008] The hand knob of the drawer is provided with a rotating shaft extending to both sides, and the two ends of the rotating shaft are respectively fixed with a lock tongue, which is located directly above the slope of the movable limiting plate.

[0009] As a preferred, the movable limiting plate is provided with a hinge hole in the middle, the side face of the drawer is provided with a hinge plate, and the movable limiting plate and the hinge plate are connected through a hinge shaft. This structure can make the movable limiting plate rotate along the hinge shaft, so that the limiting block can be lifted from the limiting groove to be unlocked.

[0010] As preferred, a plurality of limiting baffle plates are further fixed on both sides of the drawer, the upper end of the limiting baffle plate is provided with a bending part, and the movable limiting plate is located on the inner side of the bending part and is provided with an up-down movable gap.

[0011] As preferred, the bottom surface of the movable limiting plate is provided with a weight-reducing groove one, and the top of the movable limiting plate is provided with a weight-reducing groove two and a limiting baffle plate on both sides respectively, and the limiting baffle plate is installed at the corresponding position of the weight-reducing groove two. Mainly for weight reduction, while reducing the height of the bending part of the limiting baffle plate, saving materials and more firm structure.

[0012] As preferred, the limiting block is welded and fixed with the movable limiting plate through the connecting plate, the limiting block is a rubber part, and the limiting block and the connecting plate are formed by injection molding. The rubber part of the limiting block can reduce vibration and noise.

[0013] Advantages: compared with the prior art, the advantages of the patent are: first, the safety is greatly improved, the drawer is prevented from being completely opened accidentally during transportation, and the risk of pinching hands and other accidents is reduced; second, the guide rail can be protected, the service life of the guide rail is prolonged, and the maintenance cost is reduced; third, convenient to use, easy to operate, and convenient to disassemble the drawer. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic view of a drawer of a bunk support of the utility model.

[0015] Figure 2 is a left view of the utility model Figure 1 .

[0016] Figure 3 is Figure 2 a partial schematic view.

[0017] Figure 4 is Figure 3 a partial top view.

[0018] Figure 5 is Figure 3 a connection structure diagram of the movable limiting plate and the fixed limiting plate in the utility model.

[0019] Figure 6 is a structure diagram of the fixed limiting plate of the utility model.

[0020] Figure 7 is a structure diagram of the movable limiting plate of the utility model.

[0021] As shown in the figure: 1, bunk support; 2, guide rail; 3, drawer; 4, buckle; 5, fixed limiting plate; 6, movable limiting plate; 7, limiting block; 8, spring; 9, lock tongue; 10, hinged plate; 11, limiting baffle plate. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model will be described clearly and completely in connection with the drawings below, but the embodiment should not be understood as limiting the utility model.

[0023] The utility model discloses Figures 1 to 7 As shown in the figure:

[0024] A three-section locking mechanism of a berth support drawer, including a berth support 1, a drawer 3 slidingly connected with the two side guide rails 2 inside the berth support, the front of the drawer is provided with a buckle hand 4, the upper part of the two side guide rails inside the berth support is provided with a fixed limiting plate 5, the top surface of the fixed limiting plate is provided with four interval limiting grooves 51 at both ends and the middle,

[0025] The two sides of the drawer 3 are respectively hinged with movable limiting plates 6 with gaps reserved on the side of the fixed limiting plate, the front end of the movable limiting plate is provided with a slope 61 with gradually decreasing height, the rear end bottom of the movable limiting plate is provided with a limiting block 7 corresponding to the limiting groove on the side close to the fixed limiting plate, the side opposite to the drawer of the movable limiting plate is hung with a spring 8 on the upper part, and the other end of the spring extends to the outside of the drawer in an oblique downward direction.

[0026] The buckle hand 4 of the drawer is provided with a rotating shaft 41 extending to both sides, and the two ends of the rotating shaft are respectively fixed with a lock tongue 9, and the lock tongue is located directly above the slope of the movable limiting plate.

[0027] Among them, the middle of the movable limiting plate 6 is provided with a hinge hole 62, the side of the drawer is provided with a hinge plate 10, and the movable limiting plate and the hinge plate are connected through a hinge shaft. This structure can make the movable limiting plate rotate along the hinge shaft, so that the limiting block can be lifted from the limiting groove to be unlocked.

[0028] Among them, a plurality of limiting baffle plates 11 are further fixed on the two sides of the drawer, the upper end of the limiting baffle plate is provided with a bending part, the movable limiting plate is located on the inner side of the bending part and has a reserved up-down movement gap. Limiting the movable limiting plate can ensure the stability of use.

[0029] Among them, the bottom surface of the movable limiting plate 6 is provided with a weight reduction groove one 63, and the top part of the movable limiting plate is provided with a weight reduction groove two 64 and a limiting baffle plate on the corresponding parts of the weight reduction two. Mainly for weight reduction, at the same time, the height of the bending part of the limiting baffle plate can be reduced, the material can be saved, and the structure is more firm.

[0030] Among them, the limiting block 7 is welded and fixed with the movable limiting plate 6 through a connecting plate 71, the limiting block is a rubber part, and the limiting block and the connecting plate are formed by injection molding. The rubber part is used for setting the limiting block, which can reduce the shock and reduce the noise at the same time.

[0031] The working principle of the utility model:

[0032] In use, the handle is pulled, the lock tongue is pressed on the slope of the movable limiting plate, the movable limiting plate rotates along the hinge shaft, the other end is lifted up against the spring force, and the limiting block is driven to be separated from the limiting groove, so that the drawer can be pulled out, when the movable limiting plate moves to the middle limiting groove of the fixed limiting plate with the drawer, the limiting block falls into the limiting groove to be locked under the spring, if it is needed to continue to open, the handle is pulled out to the next limiting groove.

[0033] The details of the application are not described in the specification, which are known in the art.

[0034] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A three-stage locking mechanism of a bunk bed bracket drawer, comprising a bunk bed bracket, a drawer slidingly connected with the guide rails on both sides of the interior of the bunk bed bracket, and a handle provided on the front face of the drawer, characterized in that: The upper part of the guide rail on both sides of the interior of the sleeper support is provided with a fixed limiting plate, four interval limiting grooves are formed in the top surface of the fixed limiting plate, The two sides of the drawer are respectively hinged with a movable limiting plate which has a gap reserved on the side of the fixed limiting plate, the front end of the movable limiting plate is provided with a slope which gradually decreases in height, the rear end of the movable limiting plate is provided with a limiting block corresponding to the limiting groove near the side of the fixed limiting plate, a spring is hung on the upper part of the side opposite to the drawer of the movable limiting plate, the other end of the spring extends downward and is hung on the outside of the drawer; The inner part of the handle of the drawer is provided with a rotating shaft extending to both sides, the two ends of the rotating shaft are respectively fixed with a lock tongue, the lock tongue is located directly above the slope of the movable limiting plate.

2. The three-stage locking mechanism for a bunk bed drawer according to claim 1, wherein: The middle part of the movable limiting plate is provided with a hinge hole, the side of the drawer is provided with a hinge plate, and the movable limiting plate and the hinge plate are connected through a hinge shaft.

3. The three-stage locking mechanism for a bed set drawer according to claim 1 or 2, characterized in that: The two sides of the drawer are also fixed with a plurality of limiting baffle plates, the upper end of the limiting baffle plate is provided with a bending part, the movable limiting plate is located on the inner side of the bending part and has a gap reserved for upward and downward movement.

4. The three-stage locking mechanism for a bunk bed drawer according to claim 3, wherein: The bottom surface of the movable limiting plate is provided with a weight-reducing groove one, the top part of the movable limiting plate is provided with a weight-reducing groove two and a limiting baffle plate on both sides respectively, and the limiting baffle plate is installed in the corresponding part of the weight-reducing groove two.

5. The three-stage locking mechanism of a bed set drawer according to claim 1 or 2 or 4, characterized in that: The limiting block is welded and fixed with the movable limiting plate through a connecting plate, the limiting block is a rubber part, and the limiting block and the connecting plate are formed by injection molding.

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