CN201991349U

CN201991349U - Downward opening locking protection device

Info

Publication number: CN201991349U
Application number: CN2011200674928U
Authority: CN
Inventors: 陈志明; 杨强
Original assignee: JIEMEI ELECTRONIC CO Ltd SUZHOU CITY
Current assignee: JIEMEI ELECTRONIC CO Ltd SUZHOU CITY
Priority date: 2011-03-15
Filing date: 2011-03-15
Publication date: 2011-09-28
Anticipated expiration: 2021-03-15

Abstract

The utility model discloses a downward opening locking protection device comprising a box door, wherein the lower end of the box door is articulated with a box body; a reverse L-shaped door hook plate is in pin connection with the side wall of the upper part of the box door; a spring is connected between the transverse segment of the door hook plate and a fixing block of the side wall of the box; a clamping groove with a downward opening is arranged at the end part of the transverse segment of the door hook plate; the rear part and the front part of the clamping groove is respectively provided with a first guide surface and a second guide surface which are low at front part and high at rear part; the first guide surface is in smooth connection with the opening of the clamping groove; the second guide surface is in smooth connection with the bottom of the clamping groove; a door lock rod corresponding to the clamping groove is arranged on the side wall of the box body; and the box door and the box body are locked through the clamping and matching between the clamping groove of the door hook plate and the door lock rod. When the box door is closed, the door hook plate can automatically hook the door lock rod to realize the locking between the box door and the box body so that the box door can still be ensured to be under the locking state even the door switch is in failure and safety accidents are efficiently avoided.

Description

Downward swing door locking protective device

Technical field

The utility model relates to a kind of downward swing door locking protective device.

Background technology

Existing a lot of device or equipment all are to adopt the mode of downward swing door to open door, lack effective safety guard, and when the door failure mechanisms, door can be opened automatically, all can produce potential safety hazard to personnel and article like this.

Summary of the invention

The utility model purpose is: a kind of downward swing door locking protective device is provided; when it is closed at chamber door; the door hook plate can hook the locking between door lock rod realization chamber door and the casing automatically; when opening chamber door; just can open chamber door for vertical section that must promote the door hook plate earlier backward; even door switch mechanism lost efficacy like this, can guarantee still that chamber door is in to close locking state, effectively avoid security incident to take place.

The technical solution of the utility model is: a kind of downward swing door locking protective device; the casing and lower end and the hinged chamber door of casing that comprise open front; be connected with the door hook plate of inverted L shape on the sidewall on described chamber door top; be connected with spring between the traversing section of door hook plate and the fixed block of chamber door sidewall; the end of door hook plate traversing section has a draw-in groove that Open Side Down; the rear portion of described draw-in groove has first a low early and high after spigot surface; the notch smooth connection of described first spigot surface and draw-in groove; described wall box is provided with door lock rod corresponding to draw-in groove, and described chamber door and casing cooperate realization to lock by the draw-in groove of door hook plate with the door lock rod clamping.

The front portion of described draw-in groove has second a low early and high after spigot surface, the bottom land smooth connection of described second spigot surface and draw-in groove, such design makes when promoting vertical section of door hook plate backward, door lock rod can skid off draw-in groove smoothly along second spigot surface, realizes the release between chamber door and the casing.

The utility model has the advantages that:

1. the utility model is when chamber door is closed, the door hook plate can hook the locking between door lock rod realization chamber door and the casing automatically, when opening chamber door, just can open chamber door for vertical section that must promote the door hook plate earlier backward, even door switch mechanism lost efficacy like this, can guarantee still that chamber door is in closes locking state, effectively avoids security incident to take place.

2. the draw-in groove rear side of door hook plate is connected with the first low early and high after spigot surface in the utility model, the notch smooth connection of first spigot surface and draw-in groove, such design makes chamber door when closing, door lock rod can slip in the draw-in groove smoothly along first spigot surface, realizes automatically locking between chamber door and the casing.

3. the draw-in groove front portion of door hook plate is provided with the second low early and high after spigot surface in the utility model, the bottom land smooth connection of second spigot surface and draw-in groove, such design makes when promoting vertical section of door hook plate backward, door lock rod can skid off draw-in groove smoothly along second spigot surface, realizes the release between chamber door and the casing.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the structural representation under the utility model casing and the chamber door lock-out state;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is the structural representation under the utility model casing and the chamber door released state;

Fig. 4 is the partial enlarged drawing of Fig. 3.

Wherein: 1 casing; 2 chamber doors; 3 hook plates; 31 traversing sections; 32 draw-in grooves; 33 first spigot surfaces; 34 second spigot surfaces; 35 vertical sections; 4 springs; 5 door lock rods; 6 fixed blocks.

The specific embodiment

Embodiment: as shown in Figures 1 to 4; a kind of downward swing door locking protective device; comprise the chamber door 2 that the casing 1 of open front and lower end and casing 1 are hinged; be connected with the door hook plate 3 of inverted L shape on the sidewall on described chamber door 2 tops; be connected with spring 4 between the traversing section 31 of door hook plate 3 and the fixed block 6 of chamber door 2 sidewalls; the end of door hook plate 3 traversing sections has a draw-in groove that Open Side Down 32; the rear portion of described draw-in groove 32 and front portion have first a low early and high after spigot surface 33 and second spigot surface 34 respectively; the notch smooth connection of described first spigot surface 33 and draw-in groove 32; the bottom land smooth connection of described second spigot surface 34 and draw-in groove 32; described casing 1 sidewall is provided with door lock rod 5 corresponding to draw-in groove 32, and described chamber door 2 and casing 1 cooperate realization to lock by the draw-in groove 32 of door hook plate 3 with door lock rod 5 clampings.

When the utility model is closed at chamber door 2, door hook plate 3 can hook the locking that door lock rod 5 is realized between chamber door 2 and the casing 1 automatically, when opening chamber door 2, just can open chamber door 2 for vertical section 35 that must promote door hook plate 3 earlier backward, even door switch mechanism lost efficacy like this, can guarantee still that chamber door 2 is in closes locking state, effectively avoids security incident to take place.

Draw-in groove 32 rear sides of door hook plate 3 are connected with the first low early and high after spigot surface 33 in the utility model, the notch smooth connection of first spigot surface 33 and draw-in groove 32, such design makes chamber door 2 when closing, door lock rod 5 can slip in the draw-in groove 32 smoothly along first spigot surface 33, realizes automatically locking between chamber door 2 and the casing 1.

Draw-in groove 32 front portions of door hook plate 3 are provided with the second low early and high after spigot surface 34 in the utility model, the bottom land smooth connection of second spigot surface 34 and draw-in groove 32, such design make promote backward vertical section of door hook plate 3 35 o'clock, door lock rod 5 can skid off draw-in groove 32 smoothly along second spigot surface 34, realizes the release between chamber door 2 and the casing 1.

Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.In addition to the implementation, the utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the utility model scope required for protection.

Claims

1. a downward swing door is locked protective device; the casing (1) and lower end and the hinged chamber door (2) of casing (1) that comprise open front; it is characterized in that: the door hook plate (3) that is connected with inverted L shape on the sidewall on described chamber door (2) top; be connected with spring (4) between the traversing section (31) of door hook plate (3) and the fixed block (6) of chamber door (1) sidewall; the end of door hook plate (3) traversing section (31) has a draw-in groove that Open Side Down (32); the rear portion of described draw-in groove (32) has low early and high after first spigot surface (33); the notch smooth connection of described first spigot surface (33) and draw-in groove (32); described casing (1) sidewall is provided with door lock rod (5) corresponding to draw-in groove (32), and described chamber door (2) cooperates with door lock rod (5) clamping by a draw-in groove (32) of hook plate (3) with casing (1) realizes locking.

2. downward swing door locking protective device according to claim 1, it is characterized in that: the front portion of described draw-in groove (32) has low early and high after second spigot surface (34), the bottom land smooth connection of described second spigot surface (34) and draw-in groove (33).