CN211269470U

CN211269470U - Drawer opening-proof device

Info

Publication number: CN211269470U
Application number: CN201921439553.1U
Authority: CN
Inventors: 吉爱东
Original assignee: Tianjin Jitai Yongli Machining Co Ltd
Current assignee: Yang Sen
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-08-18
Anticipated expiration: 2029-08-30

Abstract

The utility model provides an opening-proof device for a drawer, which comprises a base, an elastic pressing sheet, a lock head, a fixing screw and a connecting rod, the base is provided with a clamping groove, a plurality of limiting holes and a threaded hole, the clamping groove is arranged at one end of the upper surface of the base, the upper surface of the base is of a curved surface structure, one end of the upper surface of the base, which is far away from the clamping groove, is movably connected with the elastic pressing sheet, the other end of the elastic pressing sheet is arranged in the clamping groove, the lower surface of the elastic pressing sheet is provided with a bulge corresponding to the curved surface of the upper surface of the base, the connecting rod penetrates through the upper surface and the lower surface of the base, and are connected in series by a fixing screw, the connecting rod can swing around the fixing screw, the top end of the connecting rod is of an elastic structure and is contacted with the lower surface of the elastic pressing sheet, the bottom end of the connecting rod is fixedly connected with the top end of the connecting lock head, the lock head comprises a front piece and a rear piece, and a rectangular opening is formed in one side of the bottom end of the front piece.

Description

Drawer opening-proof device

Technical Field

The utility model relates to a box drawer apparatus field particularly, relates to an opening device is prevented to drawer.

Background

The equipment box that daily production used generally can be supporting to a plurality of drawers to installation roller device is in order to conveniently remove in the bottom, because can place a large amount of mechanical maintenance equipment and device in the drawer usually, removes the box, and when not locking, the drawer can be opened by oneself because of vibrations, easily causes box or drawer to damage, or constitutes the potential safety hazard.

The invention patent with application publication number CN109653608A discloses a drawer interlocking mechanism and an equipment cabinet with the same, the drawer interlocking mechanism comprises a driving component, a locking component and a movable rod, the driving component comprises: the mechanism fixing seat, the tension spring and the swinging piece are pivoted on the mechanism fixing seat and can swing in the vertical direction, the first swinging arm of the swinging piece is connected to the mechanism fixing seat through the tension spring, and the second swinging arm of the swinging piece is abutted against the rear end of the drawer; the movable rod extends above the first swing arm corresponding to each locking assembly to form a supporting part, and the supporting part is abutted against the first swing arm through the self gravity of the movable rod; the locking assembly comprises a plug-in and a limiting part, the limiting part is fixed on the drawer and provided with a bayonet with a downward opening, the plug-in is connected to the movable rod and corresponds to the limiting part, and the movable rod moves up and down to drive the plug-in to be inserted into or separated from the bayonet of the limiting part. The technical scheme solves the problem of simultaneous opening of the drawers to a certain extent, but the automatic opening of the single drawer caused by the movement of the box body cannot be effectively solved.

Aiming at the problem that the prior art fails to provide an anti-opening device for a drawer, an automatic return lock is arranged at the rear end of a box body track. When the drawer is closed, the lock hook at the top end of the drawer rail collides with the return lock, and the return lock rotates downwards to clamp the lock hook at the top end of the drawer rail, so that the locking effect is achieved, and the drawer is prevented from being automatically opened; when the drawer is opened, the drawer needs to be pulled forcibly, so that the end-turning lock rotates upwards to be separated from the lock hook. The drawer locking is realized without a key switch lock, and the operation flow is effectively simplified.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an opening-proof device for a drawer, which comprises a base, an elastic pressing sheet, a lock head, a fixing screw and a connecting rod, wherein the base is provided with a clamping groove, a plurality of limiting holes and a threaded hole, the clamping groove is arranged at one end of the upper surface of the base, the limiting holes are symmetrical about the center of gravity of the base, the threaded hole is arranged at the center of gravity of the base, the axial directions of the limiting holes and the threaded hole are vertical to the vertical direction, the upper surface of the base is of a curved surface structure, one end of the upper surface of the base, which is far away from the clamping groove, is movably connected with the elastic pressing sheet, the other end of the elastic pressing sheet is arranged in the clamping groove, the lower surface of the elastic pressing sheet is provided with a bulge corresponding to the curved surface of the upper surface of the base, the connecting rod passes through, the bottom end of the connecting rod is fixedly connected with the top end of the connecting lock head, the lock head comprises a front piece and a rear piece, and a rectangular opening is formed in one side of the bottom end of the front piece.

Furthermore, the top end of the connecting rod is fixedly connected with an elastic ball.

Furthermore, the elastic ball is made of plastic materials.

Furthermore, the lock head is in an asymmetric inverted U-shaped structure, and the length of the front piece of the lock head is larger than that of the rear piece.

Furthermore, the limiting hole is a rectangular through hole.

Further, the number of the limiting through holes is more than or equal to 2.

Furthermore, one end of the lower surface of the base, which corresponds to the clamping groove, is of an inner-tangent fillet structure and corresponds to the swing route of the lock head and the connecting rod.

Furthermore, the base is provided with butterfly-shaped through holes in the vertical direction, the butterfly-shaped through holes are symmetrical in the horizontal direction with the threaded holes as centers, and the connecting rod swings in the butterfly-shaped through holes with the threaded holes as centers of circles.

The utility model discloses the drawer is prevented opening device has following beneficial effect, and the effectual drawer that has realized is along with the free slip of box motion in-process to easily installation, convenient to use, stable in structure can use after once installing, for the mode of avoiding the drawer slippage through reciprocal key switch lock that uses, has effectively reduced operating procedure, improves work efficiency.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a case having an opening prevention device for a drawer;

FIG. 2 is a schematic view of the structure of the drawer opening preventing device;

FIG. 3 is an enlarged view of FIG. 1 at A;

wherein the figures include the following reference numerals:

1. a box body; 2. a drawer; 3. a track; 4. an anti-opening device; 5. a box body track; 6. a drawer rail; 10. a base; 11. a card slot; 12. a limiting hole; 13. a threaded hole; 14. a butterfly-shaped through hole; 20. elastic tabletting; 21. a protrusion; 30. a lock head; 31. a front panel; 310. a rectangular opening; 32. a rear panel; 40. fixing screws; 50. a connecting rod; 51. a resilient ball; 61. a rail fastener; 62. a track gap.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-3, a box with a drawer opening-preventing device comprises a box 1, a drawer 2, a rail 3, and an opening-preventing device 4, wherein the rail 3 comprises a box rail 5 and a drawer rail 6, the box rail 5 is provided with the opening-preventing device 4, the front end of the drawer rail 6 is provided with a rail buckle 61 and a rail notch 62, the opening-preventing device 4 comprises a base 10, an elastic pressing sheet 20, a lock head 30, a fixing screw 40 and a connecting rod 50, the base 10 is fixed at the tail end of the drawer rail 6, the base 10 is of a quadrangular prism structure with irregular upper and lower surfaces, one end of the upper surface of the base 10 is movably connected with the elastic pressing sheet 20, the upper surface of the base 10 is of a curved surface structure, the base 10 is provided with a clamping groove 11, a limiting hole 12 and a threaded hole 13 parallel to the normal direction of the rail 6, the limiting hole 12 is a rectangular, the limiting device is used for limiting the forward and backward swinging of the connecting rod 50, the threaded hole 13 is a circular through hole and is used for screwing a fixing screw 40 so as to fix the base 10 relative to the box body track 5, the butterfly-shaped through hole 14 is communicated with the upper surface and the lower surface of the base 10 and extends towards the front end and the rear end, the upper surface of the other end of the base 10 is provided with a longitudinal clamping groove 11, the clamping groove 11 is used for limiting the elastic pressing sheet 20, one end of the elastic pressing sheet 20 is movably connected to the upper surface of the base 10, the lower surface of the elastic pressing sheet 20 is provided with a bulge 21 corresponding to the concave part of the upper surface of the base 10, the other end of the elastic pressing sheet 20 is arranged in the clamping groove 11, the upper end and the lower end of the elastic pressing sheet 20 are abutted against the clamping groove 11 to limit the lock head 30, the lock head 30 is in an asymmetric inverted U, the bottom end of the front piece 31 is provided with a notch 310, the top of the lock head 30 is fixedly connected with the connecting rod 50, the connecting rod 50 is sleeved on the fixing screw 40, one end of the connecting rod 50 penetrates out of the lower surface of the base 10 and is fixedly connected with the lock head 30, the other end of the connecting rod 50 penetrates out of the upper surface of the base 10 and is fixedly connected with the elastic ball 51, the connecting rod 50 can swing around the fixing screw 40, and therefore the elastic ball 51 at the top end is driven to move on the upper surface of the base 10, and the elastic ball 51 can be made of materials with certain elasticity, such.

Example 1

The embodiment provides a box body with a drawer opening-preventing device, which comprises a box body 1, a drawer 2, a rail 3 and an opening-preventing device 4, wherein the rail 3 comprises a box body rail 5 and a drawer rail 6, the opening-preventing device 4 comprises a base 10, an elastic pressing sheet 20, a connecting rod 50, a fixing screw 40 and a lock head 30, one end of the upper surface of the base 10 is movably connected with the elastic pressing sheet 20, the base 10 is a quadrangular prism, the upper surface of the base 10 is of a curved surface structure and is provided with a clamping groove 11, a plurality of limiting holes 12, a threaded hole 13 and a butterfly-shaped through hole 14, the clamping groove 11 is positioned on the upper surface and longitudinally extends, the limiting hole 12 is rectangular, the threaded hole 13 is positioned at the gravity center position of the base 10, the butterfly-shaped through hole 14 is communicated with the upper surface and the lower surface of the base 10, the top end of the connecting rod, the connecting rod 50 is communicated with the upper surface and the lower surface of the base 10, so that the circular through hole is sleeved with the fixing screw 40, the plastic ball 51 at the top end is positioned between the upper surface of the base 10 and the lower surface of the elastic pressing sheet 20, and the front end of the drawer rail 6 is provided with a rail buckle 61 and a rail notch 62.

In the use, the inboard of base 10 is close to box track 6, it is fixed to cup joint with the inboard bracing piece of box track 6 through screw hole 12, upwards wear out to bounce ball 51 protrusion in base 10 upper surface from base 10 lower surface connecting rod 50, the through-hole at connecting rod 50 middle part corresponds with screw hole 12 of base 10 this moment, cup joint the screw hole of base 10 and the through-hole of connecting rod 30 in proper order and fix on drawer track 6 with set screw 40, make the anter 31 of tapered end 31 towards the one side that is close to drawer 2, drawer 2 is close to one side drawer track 6 front end of base 10 and has been seted up track breach 62 and track buckle 61.

When the drawer 2 is closed, the front end of the drawer rail 6 penetrates through the notch 310 at the bottom end of the front piece 31 of the lock head 30 in the pushing process, the rear piece 32 is pushed to enable the lock head 30 to move backwards, the elastic ball 51 at the top of the connecting rod 50 is driven to rotate forwards, the elastic pressing piece 20 is jacked upwards and then fixed to the front part of the protrusion, at the moment, the front piece 31 of the lock head 30 is located in the rail notch 62, and the rail buckle 61 can not move forwards and backwards due to the lock head front piece 31, so that the relative sliding of the drawer rail 6 is limited, and the.

When the drawer is opened, the drawer 2 needs to be pulled forcefully to enable the front end of the drawer buckle 61 to push the lock head front piece 31 to move forwards, the elastic ball 51 at the top of the connecting rod 50 is driven to rotate backwards, the elastic pressing piece 20 is jacked upwards to protrude downwards until the protruding rear portion is fixed, at the moment, the rail buckle 61 is separated from the lock head front piece 31 to limit, and locking is released.

The utility model discloses the drawer is prevented opening device has following beneficial effect, and the effectual drawer that has realized is along with the free slip of box motion in-process to easily installation, convenient to use, stable in structure for the mode of avoiding the drawer slippage through reciprocal key switch lock of using, effectively reduced operating procedure, improve work efficiency.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An opening prevention device for a drawer, characterized in that: the anti-theft lock comprises a base (10), an elastic pressing sheet (20), a lock head (30), a fixing screw (40) and a connecting rod (50), wherein the base (10) is provided with a clamping groove (11), a plurality of limiting holes (12) and a threaded hole (13), the clamping groove (11) is formed in one end of the upper surface of the base (10), the limiting holes (12) are symmetrical with respect to the gravity center of the base (10), the threaded hole (13) is formed in the gravity center of the base (10), the axial directions of the limiting holes (12) and the threaded hole (13) are vertical to the vertical direction, the upper surface of the base (10) is of a curved surface structure, one end, far away from the clamping groove (11), of the upper surface of the base (10) is movably connected with the elastic pressing sheet (20), the other end of the elastic pressing sheet (20) is arranged in the clamping groove (11), the lower surface of the elastic pressing sheet (, the connecting rod (50) penetrates through the upper surface and the lower surface of the base (10) and is connected in series through a fixing screw (40), the connecting rod (50) can swing around the fixing screw (40), the top end of the connecting rod (50) is of an elastic structure and is in contact with the lower surface of the elastic pressing sheet (20), the bottom end of the connecting rod (50) is fixedly connected with the top end of a connecting lock head (30), the lock head (30) comprises a front sheet (31) and a rear sheet (32), and one side of the bottom end of the front sheet (31) is provided with a rectangular notch (310).

2. The drawer opening prevention device of claim 1, wherein: the top end of the connecting rod (50) is fixedly connected with an elastic ball (51).

3. The drawer opening prevention device of claim 2, wherein: the elastic ball (51) is made of plastic materials.

4. The drawer opening prevention device of claim 1, wherein: the lock head (30) is in an asymmetric inverted U-shaped structure, and the length of the front piece (31) of the lock head (30) is larger than that of the rear piece (32).

5. The drawer opening prevention device of claim 1, wherein: the limiting hole (12) is a rectangular through hole.

6. The drawer opening prevention device of claim 1 or 5, wherein: the number of the limiting holes (12) is more than or equal to 2.

7. The drawer opening prevention device of claim 1, wherein: one end of the lower surface of the base (10), which corresponds to the clamping groove (11), is of an inner tangent fillet structure and corresponds to the swing route of the lock head (30) and the connecting rod (50).

8. The drawer opening prevention device of claim 1, wherein: the base (10) is provided with a butterfly-shaped through hole (14) in the vertical direction, the butterfly-shaped through hole (14) is symmetrical about the horizontal direction with the threaded hole as the center, and the connecting rod (50) swings in the butterfly-shaped through hole (14) with the threaded hole (13) as the center of a circle.