CN213450069U

CN213450069U - Protective airtight shielding door

Info

Publication number: CN213450069U
Application number: CN202022179364.4U
Authority: CN
Inventors: 廖洪财; 叶志龙; 肖志兵
Original assignee: Wenzhou Dafeng Civil Air Defense Equipment Co Ltd
Current assignee: Wenzhou Dafeng Civil Air Defense Equipment Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-06-15
Anticipated expiration: 2030-09-28

Abstract

The application relates to the technical field of shield doors, and discloses a protective airtight shield door which comprises a door frame and a fixed door rotationally connected with the door frame, wherein a locking structure for limiting the rotation of the fixed door is arranged on the fixed door, a fixed groove is formed in the fixed door, the locking structure comprises a gear rotationally connected in the fixed groove, two opposite ends of the gear are respectively provided with a circular shaft, a fixed hole communicated with the fixed groove is formed in the fixed door, and the circular shafts are rotationally connected in the fixed hole; be provided with drive gear pivoted drive structure on the fixed door, drive structure includes can dismantle the action bars of being connected with the circle axle, and the action bars rotates to be connected in the fixed orifices, one side that the gear was kept away from to the action bars is provided with movable handle, and this application has the effect with handle and fixed door separation, improvement security.

Description

Protective airtight shielding door

Technical Field

The application relates to the technical field of shield doors, in particular to a protective airtight shield door.

Background

At present, a protective airtight door is favored by many people, the so-called protective airtight door technology is arranged on the outermost side of an entrance and an exit and has two functions of blocking shock waves and isolating toxic agents, and the steel protective airtight door adopts a side hung type. The steel protective airtight door is divided according to whether a threshold is arranged at an opening, and comprises three types of fixed thresholds, movable thresholds and door leaf falling types, the fixed threshold series civil air defense door has the advantages of reliable protection, lower manufacturing cost and the like, the manufacturing cost of the movable threshold series civil air defense door is slightly higher, the door leaf of the falling type series civil air defense door can lift, and when the door leaf is in a lifting state, the lower edge of the door leaf is slightly higher than the ground level, so that the door leaf can be opened.

The current chinese patent that publication number is CN208330124U discloses a protective airtight shield door, including the door frame, the locked groove is installed to one side of door frame, the opposite side and the metal door leaf of door frame pass through hinge connection, the tapered end is installed to one side of metal door leaf, the jack is all installed to the both sides of door frame inner wall, the bottom surface of door frame inner wall is provided with cubic recess, the internally mounted of cubic recess has movable threshold, the lower terminal surface of activity threshold is provided with cylindrical recess, the internally mounted of cylindrical recess has the knob, the inside of activity threshold is provided with the transmission storehouse, the internally mounted in transmission storehouse has the gear.

The above related technical solutions have the following drawbacks: the knob and the handle of the shielding door can rotate relative to the metal door leaf, the knob and the handle are both arranged on the metal door leaf, most people can drive the knob and the handle to rotate, the shielding door is opened again, and safety is poor.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that most people all can drive the shield door and open, this application provides a protection airtight shield door.

The application provides a pair of airtight shield door of protection adopts following technical scheme:

a protective closed shielding door comprises a door frame and a fixed door rotationally connected with the door frame, wherein a locking structure for limiting the rotation of the fixed door is arranged on the fixed door, a fixed groove is formed in the fixed door, the locking structure comprises a gear rotationally connected in the fixed groove, two opposite ends of the gear are respectively provided with a circular shaft, a fixed hole communicated with the fixed groove is formed in the fixed door, and the circular shafts are rotationally connected in the fixed hole; be provided with drive gear pivoted drive structure on the fixed door, drive structure includes can dismantle the action bars of being connected with the circle axle, and the action bars rotates to be connected in the fixed orifices, one side that the gear was kept away from to the action bars is provided with movable handle.

By adopting the technical scheme, the movable handle is driven to rotate to drive the operating rod to rotate, and the operating rod can drive the circular shaft and the gear to rotate; when the gear is not needed to rotate, the operating rod can be separated from the circular shaft; the driving structure is taken down from the fixed door, so that the driving structure can be stored, the fixed door is prevented from being opened or closed by people, the safety is improved, and meanwhile, the parts of the driving structure are convenient to replace; set up the circle axle, the restriction gear removes along the axis direction of circle axle, has spacing effect.

Preferably, an insertion block is arranged at one end, facing the gear, of the operating rod, the cross section of the insertion block is polygonal, and a slot for the insertion block to be embedded into is arranged at one end, far away from the gear, of the circular shaft.

Through adopting above-mentioned technical scheme, the inserted block is embedded into the slot, makes action bars and circle hub connection, and drive action bars rotates and can drive gear revolve, when need not use drive structure, can take off drive structure from the fixed gate.

Preferably, the inserted block passes through the joint spare with the circle axle and is connected, the operation groove has been seted up to the lateral wall of inserted block, the joint spare is including setting up operation piece and the spring in the operation inslot, open-ended one end and operation piece fixed connection are kept away from respectively with the operation groove in the both ends of spring, the terminal surface that the spring was kept away from to the operation piece sets up to the arcwall face, the recess that supplies the operation piece embedding is seted up to the inner wall of slot.

By adopting the technical scheme, when the slot is inserted into the slot, the arc-shaped surface is abutted against the circular shaft, the operation block is embedded into the operation groove, the spring is compressed and deformed at the same time until the groove is aligned with the operation groove, and the spring is reset to enable the operation block to be embedded into the groove, so that the insertion block is more tightly connected with the circular shaft; otherwise, the insertion block can be conveniently separated from the circular shaft by pulling the operating rod.

Preferably, the clamping pieces are provided in plurality, and the clamping pieces are respectively located on the side faces of the insertion block.

Through adopting above-mentioned technical scheme, set up a plurality of joint spares, make the action bars be connected inseparabler with the circumference, prevent drive structure and circle axle separation.

Preferably, the number of the driving structures is two, and the two driving structures are respectively arranged on two sides of the fixed door.

Through adopting above-mentioned technical scheme, make the staff all can drive gear at both sides and rotate, be connected or separate fixed door and doorframe.

Preferably, the locking structure comprises a rack slidably arranged in the fixing groove, the rack reciprocates along the axis direction of the fixing groove, the rack is meshed with the gear, and a clamping groove for embedding the rack is formed in the door frame.

Through adopting above-mentioned technical scheme, during gear revolve, drive the rack and slide along the axis direction of fixed slot, make the fixture block imbed in the draw-in groove, make the fixed door be connected with the doorframe, can restrict the fixed door and rotate, otherwise, when the rack imbeds in the draw-in groove, the drive fixed door is opened.

Preferably, the one end of rack far away from the gear is provided with the guide block, set up the guide way that supplies the guide block embedding on the inner wall of fixed slot, the guide block slides and sets up in the guide way.

Through adopting above-mentioned technical scheme, the guide block slides in the guide way, plays the effect of direction, makes the rack be difficult for squinting in the fixed slot, makes rack and gear mesh all the time.

Preferably, the cross section of the guide block and the cross section of the guide groove are both trapezoidal or T-shaped.

Through adopting above-mentioned technical scheme, prevent that the guide block from moving towards the gear direction, have spacing effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the movable handle is driven to rotate to drive the operating rod to rotate, and the operating rod can drive the circular shaft and the gear to rotate; when the gear is not needed to rotate, the operating rod can be separated from the circular shaft; the driving structure is taken down from the fixed door, so that the driving structure can be stored, the fixed door is prevented from being opened or closed by people, the safety is improved, and meanwhile, the parts of the driving structure are convenient to replace; the round shaft is arranged to limit the gear to move along the axis direction of the round shaft, so that the limiting effect is achieved;

2. set up operation piece and spring, improve the stability of being connected between inserted block and the circle axle, make the better drive gear rotation of staff.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a schematic view of the fixed door opening relative to the doorframe;

FIG. 3 is a partial cross-sectional view highlighting the drive structure;

fig. 4 is an enlarged view of a portion a in fig. 3.

Reference numerals: 1. a door frame; 11. a card slot; 2. a fixed door; 21. fixing grooves; 22. a fixing hole; 23. a guide groove; 24. fixing a handle; 3. a locking structure; 31. a gear; 311. a circular shaft; 312. a groove; 313. a slot; 32. a rack; 321. a guide block; 4. a drive structure; 41. a movable handle; 42. an operating lever; 43. inserting a block; 431. an operation slot; 5. a clamping piece; 51. a spring; 52. and an operation block.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment discloses a protective airtight shielded door. Referring to fig. 1 and 2, the shield door includes a door frame 1, and a fixed door 2 is rotatably connected to one side of the door frame 1 through a hinge. Fixed handles 24 are welded to opposite ends of the fixed door 2.

Referring to fig. 2 and 3, the fixed door 2 is provided with a locking structure 3 for restricting rotation of the fixed door 2. The end of the fixed door 2 far away from the hinge is provided with a fixed groove 21. The locking structure 3 comprises a gear 31 and a rack 32, wherein the gear 31 is rotatably connected in the fixing groove 21, the rack 32 is slidably arranged in the fixing groove 21, and the gear 31 and the rack 32 are meshed with each other. The door frame 1 is provided with a clamping groove 11 corresponding to the fixing groove 21, the clamping groove 11 can be embedded by the rack 32, and the rack 32 can move along the axis direction of the fixing groove 21 and can penetrate out of the fixing groove 21.

Referring to fig. 3 and 4, the fixing holes 22 communicating with the fixing grooves 21 are formed at both opposite end surfaces of the fixing door 2. The two opposite end surfaces of the gear 31 are fixedly connected with the circular shafts 311, the two circular shafts 311 are respectively embedded into the two fixing holes 22, and the gear 31 can rotate along the axis of the fixing groove 21.

Referring to fig. 3 and 4, a guide block 321 with a trapezoidal cross section is fixedly connected to one end of the rack 32 away from the gear 31, a guide groove 23 with a trapezoidal cross section is formed in the inner wall of the fixing groove 21, and the guide block 321 is slidably disposed in the guide groove 23. The guide groove 23 and the guide block 321 are provided to have a spacing and guiding effect such that the rack 32 can only move along the guide groove 23 and the gear 31 is engaged with the rack 32. In addition, the cross section of the guide block 321 and the cross section of the guide groove 23 may be T-shaped.

Referring to fig. 3 and 4, opposite end surfaces of the fixed door 2 are each provided with a driving structure 4 that drives a gear 31. The driving structure 4 comprises a movable handle 41, an operating rod 42 and an inserting block 43, wherein the movable handle 41 is welded with one end of the operating rod 42 far away from the gear 31.

Referring to fig. 3 and 4, the operation lever 42 is inserted into the fixing hole 22, and the operation lever 42 is rotatable in the fixing hole 22. The insertion block 43 is integrally formed with the end surface of the operating rod 42 facing the gear 31, and the cross section of the insertion block 43 is polygonal, while the cross section of the insertion block 43 is regular hexagonal in this embodiment. The end of the circular shaft 311 away from the gear 31 is provided with a slot 313 into which the insert block 43 is inserted.

Referring to fig. 3 and 4, six clamping pieces 5 are arranged on the insertion block 43, and the six clamping pieces 5 are distributed in a circumferential array along the axis of the operating rod 42. An operation groove 431 is formed in the side face of the inserting block 43, a spring 51 and an operation block 52 are arranged in the operation groove 431, two ends of the spring 51 are fixedly connected with the end face of the opening, far away from the operation groove 431, of the operation block 52, and one side, far away from the spring 51, of the operation block 52 is set to be an arc-shaped face. The inner wall of the slot 313 is provided with a groove 312 for the operation block 52 to be inserted into.

When the operating rod 42 is connected with the circular shaft 311, the inserting block 43 is embedded into the slot 313, the arc-shaped surface is abutted against the circular shaft 311, the operating block 52 is embedded into the operating groove 431 until the groove 312 is aligned with the operating groove 431, the spring 51 is reset to enable the operating block 52 to be embedded into the groove 312, and the inserting block 43 is connected with the circular shaft 311; conversely, driving the operating lever 42 away from the gear 31 can separate the insert 43 from the circular shaft 311.

The implementation principle of the protective airtight shielding door in the embodiment of the application is as follows: the operating rod 42 is inserted into the fixing hole 22, so that the inserting block 43 is inserted into the inserting slot 313, the operating block 52 is inserted into the groove 312, the worker can drive the movable handle 41 to rotate, the movable handle 41 drives the gear 31 to rotate, the gear 31 drives the rack 32 to move, and the rack 32 can be connected with the doorframe 1; conversely, the driving structure 4 may be separated from the circular shaft 311.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a protection airtight shield door, includes door frame (1) and rotates fixed door (2) of being connected, its characterized in that with door frame (1): the locking mechanism comprises a fixed door (2), a locking structure (3) limiting the fixed door (2) to rotate is arranged on the fixed door (2), a fixed groove (21) is formed in the fixed door (2), the locking structure (3) comprises a gear (31) rotatably connected in the fixed groove (21), circular shafts (311) are arranged at two opposite ends of the gear (31), a fixed hole (22) communicated with the fixed groove (21) is formed in the fixed door (2), and the circular shafts (311) are rotatably connected in the fixed hole (22); be provided with drive gear (31) pivoted drive structure (4) on fixed door (2), drive structure (4) include can dismantle action bars (42) of being connected with circle axle (311), and action bars (42) rotate to be connected in fixed orifices (22), one side that gear (31) were kept away from in action bars (42) is provided with movable handle (41).

2. A protective and airtight shielded door as claimed in claim 1, wherein: an inserting block (43) is arranged at one end, facing the gear (31), of the operating rod (42), the section of the inserting block (43) is polygonal, and a slot (313) for the inserting block (43) to be embedded into is arranged at one end, away from the gear (31), of the circular shaft (311).

3. A protective and airtight shielded door as claimed in claim 2, wherein: insert piece (43) and round axle (311) and be connected through joint spare (5), operation groove (431) have been seted up to the lateral wall of inserting piece (43), joint spare (5) are including setting up operation piece (52) and spring (51) in operation groove (431), open-ended one end and operation piece (52) fixed connection are kept away from respectively with operation groove (431) in the both ends of spring (51), the terminal surface that spring (51) were kept away from in operation piece (52) sets up to the arcwall face, recess (312) that supply operation piece (52) embedding are seted up to the inner wall of slot (313).

4. A protective and airtight shielded door according to claim 3, characterized in that: the clamping pieces (5) are arranged in a plurality of numbers, and the clamping pieces (5) are respectively located on each side face of the insertion block (43).

5. A protective and airtight shielded door as claimed in claim 1, wherein: the two driving structures (4) are arranged, and the two driving structures (4) are respectively arranged on two sides of the fixed door (2).

6. A protective and airtight shielded door as claimed in claim 1, wherein: the locking structure (3) comprises a rack (32) which is arranged in the fixing groove (21) in a sliding mode, the rack (32) reciprocates along the axis direction of the fixing groove (21), the rack (32) is meshed with the gear (31), and a clamping groove (11) for embedding the rack (32) is formed in the door frame (1).

7. A protective and airtight shielded door according to claim 6, characterized in that: one end, far away from gear (31), of rack (32) is provided with guide block (321), set up on the inner wall of fixed slot (21) and supply guide block (321) embedded guide way (23), guide block (321) slide to set up in guide way (23).

8. A protective and airtight shielded door as claimed in claim 7, wherein: the section of the guide block (321) and the section of the guide groove (23) are both trapezoidal or T-shaped.