CN110409916B - Mortise lock mechanism for protective door and protective door thereof - Google Patents
Mortise lock mechanism for protective door and protective door thereof Download PDFInfo
- Publication number
- CN110409916B CN110409916B CN201910745910.5A CN201910745910A CN110409916B CN 110409916 B CN110409916 B CN 110409916B CN 201910745910 A CN201910745910 A CN 201910745910A CN 110409916 B CN110409916 B CN 110409916B
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- Prior art keywords
- latch
- damper
- lock
- protective door
- door leaf
- Prior art date
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- 230000001681 protective effect Effects 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 title claims abstract description 31
- 230000033001 locomotion Effects 0.000 claims abstract description 38
- 230000035939 shock Effects 0.000 claims abstract description 20
- 230000006978 adaptation Effects 0.000 claims 1
- 230000007123 defense Effects 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 15
- 238000005265 energy consumption Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 239000012945 sealing adhesive Substances 0.000 description 2
- 231100000167 toxic agent Toxicity 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/10—Bolts of locks or night latches
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/002—Weather or dirt protection
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/0041—Damping means
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/12—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against air pressure, explosion, or gas
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/12—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against air pressure, explosion, or gas
- E06B5/14—Gasproof doors or similar closures; Adaptation of fixed constructions therefor
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention relates to the technical field of civil air defense equipment, and discloses a mortise lock mechanism for a protective door and the protective door thereof, wherein the mortise lock mechanism for the protective door comprises: the latch is arranged on the door leaf; the lock hole is correspondingly arranged on the door frame and comprises a lock box matched with the lock bolt and a damper, wherein the damper is arranged in the lock box and is contacted with the lock bolt in a locking state to consume the negative pressure energy of the shock wave; the locking mechanism is connected with the lock bolt and used for driving the lock bolt to do telescopic movement inside and outside the lock hole. The invention can effectively protect the lock latch through the damper, so that the lock latch is in an elastic working state, the locking mechanism can still be manually opened after the protective structure is subjected to the action of the shock wave negative pressure, and meanwhile, the damper can effectively reduce the dynamic load effect of the shock wave negative pressure on the door leaf, and provide additional safety reserve for the door leaf structure.
Description
Technical Field
The invention relates to the technical field of civil air defense equipment, in particular to a mortise lock mechanism for a protective door and the protective door thereof.
Background
Underground protective construction is also called civil air defense work, and refers to an underground protective building which is independently constructed for guaranteeing the shielding of fight time personnel and materials, the command of civil air defense and medical aid, and an underground part which can be used for air defense when being combined with the construction of the ground. The door of the underground protective construction doorway is called a protective door (civil air defense door) and functions to prevent explosion shock waves, toxic agents, biological warfare agents, radioactive particles, etc. from entering the interior to kill personnel and destroy building structures and equipment.
The shock wave negative pressure is acted by shock waves towards the outside of work, the current research on the shock wave negative pressure is insufficient, and an empirical estimation is adopted in engineering to determine a calculated value, so that the problem that the latch is subjected to larger plastic deformation when the shock wave negative pressure is actually acted more than the empirical value, and the protective airtight door cannot be opened after the shock wave passes exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a mortise lock mechanism for a protective door, which solves the problem that a latch can not open the protective door due to large plastic deformation caused by impact wave negative pressure.
The invention aims at realizing the following technical scheme:
there is provided a mortise lock mechanism for a protective door, comprising:
the latch is arranged on the door leaf;
the lock hole is correspondingly arranged on the door frame and comprises a lock box matched with the lock bolt and a damper, wherein the damper is arranged in the lock box and is contacted with the lock bolt in a locking state to consume the negative pressure energy of the shock wave;
the locking mechanism is connected with the lock latch and used for driving the lock latch to stretch and retract in and out of the lock hole.
In one aspect of the present invention, the damper includes a support plate contacting with the latch and side plates located at both ends of the support plate, wherein the thickness of the support plate is gradually thicker toward the side plates at both ends of the support plate with respect to a support plate symmetry axis parallel to the side plates, and the latch is mounted on the support plate symmetry axis parallel to the side plates.
Further, the surfaces of the lock bolt and the supporting plate, which are in contact with each other, are all inclined surfaces, the opening direction of the inclined surfaces faces the door frame direction, so that oblique relative movement is generated between the lock bolt and the damper when the lock bolt stretches, and the stretching movement of the lock bolt perpendicular to the side surface of the door leaf is converted into a movement component perpendicular to the plane of the door leaf through the oblique relative movement.
Further, the cross section of the lock bolt at one end of the door leaf is an ellipsoid or a cylinder, the other end of the lock hole is an ellipsoid or a cylinder with a cut inclined cross section, and the inclined cross section of the support plate corresponds to the angle of the cut inclined cross section of the lock bolt and is parallel to the angle of the cut inclined cross section of the lock bolt.
In another aspect of the present invention, the damper includes a cylinder for inserting the latch, energy dissipation plates, and connection plates, wherein the section of the cylinder is adapted to the section of the latch, the number of the connection plates is at least two, the cylinder is connected to the connection plates through the energy dissipation plates, and the height of the energy dissipation plates gradually decreases from the connection plates to the cylinder.
Preferably, the energy dissipation plate is an integrated energy dissipation plate or is formed by connecting a plurality of energy dissipation plates in parallel.
Further, the surfaces of the latch and the inner wall of the cylinder body, which are in contact with each other, are all inclined surfaces, the opening direction of the inclined surfaces faces the direction of the door frame, so that oblique relative movement is generated between the latch and the damper when the latch stretches, and the stretching movement of the latch vertical to the side surface of the door leaf is converted into a movement component vertical to the plane of the door leaf through the oblique relative movement.
Further, the cross section of the latch at one end of the door leaf is an ellipsoid or a cylinder, the other end of the lock hole is an ellipsoid or a cylinder with a cut inclined cross section, and the inclined cross section of the inner wall of the cylinder corresponds to the angle of the cut inclined cross section of the latch and is parallel to the angle of the cut inclined cross section of the latch.
Further, the mortise lock mechanism for the protective door further comprises a guide tube installed in the door leaf, and the lock bolt penetrates through the guide tube and stretches in the guide tube.
Another object of the present invention is to provide a protective door comprising the mortise lock mechanism for a protective door as described above.
Compared with the prior art, the invention has the following beneficial effects:
the lock hole matched with the lock bolt comprises the lock box and the damper, wherein the damper is arranged in the lock box, is contacted with the lock bolt in a locking state and is used for consuming the negative pressure energy of shock waves, and the damper can effectively protect the lock bolt to enable the lock bolt to be in an elastic working state so as to ensure that the locking mechanism can still be manually opened after the protective structure is subjected to the negative pressure action of the shock waves.
The contact surfaces of the latch and the damper are both chamfer surfaces, the chamfer surfaces are corresponding in angle and are parallel to each other, the opening direction of the chamfer surfaces faces the direction of the door frame, so that the latch and the damper generate oblique relative motion when the latch stretches, the stretching motion of the latch vertical to the side surface of the door leaf is converted into a motion component vertical to the plane of the door leaf through the oblique relative motion, the motion component provides pretightening force vertical to the direction of the door leaf for a sealing device on the protective door, and the pretightening force can enable the sealing adhesive tape to be compressed to play a sealing role. In addition, in the locked state, the pre-tightening force can play a role in improving sealing pressure on one hand and can play a role in providing a fixed fulcrum when the door leaf bears negative pressure on the other hand.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic view of a mortise lock mechanism for a protective door according to the present invention.
Fig. 2 is a stress-strain curve of a typical metallic mild steel material.
Fig. 3a is a schematic view of a first damper according to the present invention.
Fig. 3b is a cross-sectional view of a first damper of the present invention.
Fig. 4 is a schematic view of the first damper of the present invention cooperating with the latch.
Fig. 5 is a schematic diagram of the operation of the first damper of the present invention.
Fig. 6a is a schematic view of the second damper of the present invention mated with a latch.
Fig. 6b is a front view of a second damper of the present invention mated with a latch.
Fig. 6c is a top view of the second damper of the present invention mated with a latch.
Fig. 6d is a schematic view of the cylinder and latch of the present invention in contact with each other.
Wherein, 1-hasp, 2-door leaf, 3-buttonhole, 4-stand pipe, 5-lock box, 6-attenuator, 11-backup pad, 12-curb plate, 21-barrel, 22-power consumption board, 23-connecting plate.
Detailed Description
The present invention will now be described further in connection with the following detailed description, wherein the drawings are for purposes of illustration only and are not intended to be limiting; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1, this embodiment provides a mortise lock mechanism for a protective door, and for convenience of understanding, the mortise lock mechanism will be specifically applied to the protective door, as shown in fig. 1, and specifically includes:
a latch 1 mounted on a door leaf 2;
a keyhole 3, which is installed on the door frame corresponding to the latch 1, and comprises a lock box 5 and a damper 6, which are matched with the latch 1, wherein the damper 6 is installed in the lock box 5 and contacts with the latch 1 in a locking state for consuming the negative pressure energy of the shock wave;
the locking mechanism is connected with the lock bolt 1 and used for driving the lock bolt 1 to do telescopic movement inside and outside the buttonhole 3.
In this embodiment, the latch 1 has three states, namely, a natural state, a locking operation state and a locking state, under the driving of the locking mechanism, wherein: in a natural state, a preset distance is reserved between the lock bolt 1 and the corresponding lock hole 3, and in the state, the door leaf 2 can freely rotate or translate along the pin shaft; when the locking operation state is achieved, the locking mechanism is used for linking the lock bolt 1 to do telescopic motion; in the locked state, the latch 1 is at a predetermined position in the keyhole 3, and at this time, the latch 1 is tightly attached to the keyhole 3 and no relative movement is generated, in particular, the latch 1 is tightly attached to the lock case 5 and the damper 6.
Correspondingly, the damper 6 of the present embodiment also has three states, namely a natural state, a locking state and a negative pressure energy consumption state, wherein: the damper 6 is not stressed in a natural state, and the damper 6 is not deformed; when in a locking state, the damper 6 is in a stressed state, but is not stressed so much that the damper is in an elastic deformation stage; in the energy consumption state, when the protective door is in a large negative pressure after being hit by a conventional weapon or a nuclear weapon, the damper 6 can generate large plastic deformation, and the damper 6 deforms to consume the negative pressure energy of the shock wave.
Through the scheme, when the latch 1 is in a locking state, the damper 6 consumes the shock wave negative pressure energy through being in contact with the latch 1, so that the problem that the protective door cannot be opened due to large plastic deformation of the latch 1 caused by the shock wave negative pressure is solved, meanwhile, the dynamic load effect of the shock wave negative pressure on the door leaf can be effectively reduced by the damper 6, and additional safety reserve is provided for the door leaf structure.
In the present embodiment, the lock case 5 is used for installing the damper 6 and fixing the latch 1, and various structural forms of the lock case 5 and the latch 1 are provided under the above conditions; the latch mechanism (not shown in the drawings) is used for driving the latch, preferably in a mechanical structure, such as a manner of cooperation of a handle and a transmission rod, so that the protective door can be opened manually under the action of shock wave negative pressure, the latch 1 and the latch mechanism are preferably arranged inside the door leaf 2, dust contamination is avoided, and durability of the latch 1 and the latch mechanism is improved.
In this embodiment, the door latch device further comprises a guide tube 4 installed in the door leaf 2, the latch 1 penetrates through the guide tube 4 and stretches out and draws back in the guide tube 4, the guide tube 4 can be welded and fixed on a steel skeleton or a panel inside the door leaf 2 to conduct guiding action for movement of the latch 1, and meanwhile, the function of transmitting shearing force of the latch 1 on the door leaf 2 is achieved.
The damper 6 has various structural forms, and the existing energy-consuming damper can be used in the present embodiment, but considering that the protection door is used for civil air defense, when the protection door is under a large negative pressure after being hit by a conventional weapon or a nuclear weapon, the damper 6 is required to have large deformation and energy-consuming capacity, and further design and optimization of the damper 6 are required.
As shown in fig. 2, the energy dissipation principle is exemplified by a typical metallic mild steel material, and the stress and the strain of the metallic mild steel material are in direct proportion before reaching the yield stress, in which case the strain can be completely restored to the original point O after unloading, and no energy is dissipated in the process according to the energy principle. When the stress exceeds the yield stress, as shown at point B, the strain will not fully recover to the origin O after unloading, and residual strain will be plastically deformed during this process with concomitant energy dissipation.
As shown in fig. 3 to 4, as a preferred embodiment of the present embodiment, the damper adopts an integral variable cross-section form, specifically includes a support plate 11 contacting with the latch 1 and side plates 12 located at both ends of the support plate 11, the thickness of the support plate 11 gradually increases toward the side plates 12 at both ends of the support plate 11 with respect to the support plate symmetry axis parallel to the side plates 12 as a center, and the latch 1 is preferably mounted on the support plate 11 symmetry axis parallel to the side plates 12.
Wherein, the supporting plate 11 and the side plate 12 are integrally formed, and the supporting plate 11 and the side plate 12 can be made of soft steel, metallic lead and other materials.
Through the scheme, the thickness of the supporting plate 11 is gradually thickened from the center of the symmetrical axis to the two ends, so that the damper is in a variable cross section form, thereby having larger deformation and energy consumption capacity, and the specific principle is as shown in fig. 5, when the bending moment (M) of the section of the supporting plate 11 is subjected to the action of the lateral concentrated force perpendicular to the supporting plate 11, the bending moment (M) is linearly changed along the height direction; by the design of the variable cross section of the supporting plate 11, the bending rigidity (EI) of the cross section of the supporting plate 11 also linearly changes along the height direction of the steel plate, so that the curvatures of the supporting plate 11 along the height direction are the same (M/EI); once the supporting plate 11 is stressed beyond the yield force, the whole supporting plate 11 can yield simultaneously and comprehensively, and not concentrate on a certain section to yield, so that the supporting plate has larger deformation and energy consumption capacity.
In addition, the protective door is protected from toxic agents, biological warfare agents, radioactive particles, and the like, in addition to being subjected to blast shock waves. Therefore, in order to improve the tightness of the protective door, in this embodiment, the surfaces of the latch 1 and the supporting plate 11 that are in contact with each other are all chamfer surfaces, specifically as shown in fig. 4, the opening direction of the chamfer surfaces faces the door frame direction, so that when the latch 1 stretches, an oblique relative motion is generated between the latch 1 and the damper, the stretching motion of the latch perpendicular to the side surface of the door leaf 2 is converted into a motion component perpendicular to the plane of the door leaf 2 through the oblique relative motion, and the motion component provides a pretightening force perpendicular to the direction of the door leaf 2 for a sealing device on the protective door, and the pretightening force can enable the sealing adhesive tape to be compressed to play a sealing role. In the locked state, the pretension can on the one hand act to increase the sealing pressure and on the other hand act to provide a fixed fulcrum when the door leaf 2 is subjected to a negative pressure.
It should be noted that, when the latch 1 is in the natural state, the latch 1 has a predetermined distance from the keyhole 3; when the latch 1 is in a locking running state, the latch 1 contacts with the damper 6 and generates oblique relative movement with the damper 6 in the lock box 5; in the locked state, the latch 1 is at a preset position in the keyhole 3, and the latch 1 is tightly attached to the damper 6 and the keyhole 3 and does not generate relative movement.
The specific form of the chamfer is designed according to the structures of the latch 1 and the damper 6, in this embodiment, the cross section of the latch 1 at one end of the door leaf is an ellipsoid or a cylinder, the other end of the keyhole 3 is an ellipsoid or a cylinder with a cut chamfer, and the chamfer of the supporting plate 11 corresponds to the angle of the cut chamfer of the latch and is parallel to each other.
As shown in fig. 6, as another preferred solution of the present embodiment, the damper adopts a split type variable cross-section form, specifically includes a cylinder 21 for inserting the latch 1, an energy dissipation plate 22, and a connection plate 23, where the cross section of the cylinder 21 is adapted to the cross section of the latch 1, the number of connection plates 23 is at least two, the cylinder 21 is connected with the connection plate 23 through the energy dissipation plate 22, and the height of the energy dissipation plate 22 gradually decreases from the connection plate 23 to the cylinder 21.
The energy dissipation plate 22 may be made of soft steel, metallic lead, or the like, the energy dissipation plate 22 may be an integral energy dissipation plate or be formed by connecting a plurality of energy dissipation plates in parallel, and the connecting plate 23 is used for installing the damper in the lock case 5.
In the scheme, the damper adopts a split type variable cross-section form, the energy consumption principle is similar to that of an integral type variable cross-section form, and the damper has larger deformation and energy consumption capacity and is different from that of an integral type variable cross-section form.
Similarly, in order to improve the tightness of the protective door, in this embodiment, the surfaces of the latch 1 and the inner wall of the cylinder 21 that are in contact with each other are all chamfer surfaces, and the opening direction of the chamfer surfaces is towards the door frame direction, so that when the latch 1 stretches, a diagonal relative motion is generated between the lock, 1 and the damper, and the telescopic motion of the latch 1 perpendicular to the side surface of the door leaf 2 is converted into a motion component perpendicular to the plane of the door leaf 2 through the diagonal relative motion.
In this embodiment, the cross section of the latch 1 at one end of the door leaf is also an ellipsoid or a cylinder, the other end of the keyhole is also an ellipsoid or a cylinder with a cut oblique cross section, and the oblique cross section of the inner wall of the cylinder 21 corresponds to the angle of the cut oblique cross section of the latch 1 and is parallel to each other.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (8)
1. A mortise lock mechanism for a protective door, comprising:
a latch (1) mounted on the door leaf (2);
the keyhole (3) is correspondingly arranged on the door frame and comprises a lock box (5) matched with the latch (1) and a damper (6), wherein the damper (6) is arranged in the lock box (5) and is contacted with the latch (1) in a locking state to consume the negative pressure energy of the shock wave;
the locking mechanism is connected with the lock bolt (1) and is used for driving the lock bolt (1) to do telescopic movement inside and outside the buttonhole (3),
the damper (6) includes:
the device comprises a support plate (11) contacted with a lock bolt (1) and side plates (12) positioned at two ends of the support plate (11), wherein the thickness of the support plate (11) takes a support plate symmetry axis parallel to the side plates (12) as a center, the thickness gradually increases towards the side plates (12) at two ends of the support plate (11), and the lock bolt (1) is arranged on the support plate symmetry axis parallel to the side plates (12); or alternatively
Barrel (21), power consumption board (22) and connecting plate (23) for inserting hasp (1), the cross-section of barrel (21) and the cross-section looks adaptation of hasp (1), connecting plate (23) quantity is two at least, barrel (21) are connected with connecting plate (23) through power consumption board (22), the height of power consumption board (22) becomes low gradually from connecting plate (23) to barrel (21) direction.
2. Mortise lock mechanism for a protective door according to claim 1, characterized in that the surfaces of the latch (1) and the support plate (11) that are in contact with each other are chamfer surfaces, which are opened in a direction toward the door frame, so that the latch (1) generates an oblique relative movement between the latch (1) and the damper (6) when being extended and retracted, and the extension and retraction movement of the latch (1) perpendicular to the side of the door leaf (2) is converted into a movement component perpendicular to the door leaf plane by the oblique relative movement.
3. Mortise lock mechanism for a protective door according to claim 2, characterized in that the cross section of the latch (1) at one end of the door leaf (2) is an ellipsoid or a cylinder, the other end of the keyhole (3) is an ellipsoid or a cylinder with a cut-off bevel, and the bevel of the support plate (11) corresponds to the angle of the cut-off bevel of the latch (1) and is parallel to each other.
4. Mortice lock mechanism for a protective door according to claim 1, characterized in that the energy consuming plate (22) is an integral energy consuming plate or consists of a plurality of energy consuming plates in parallel.
5. Mortise lock mechanism for a protective door according to claim 1, characterized in that the surfaces of the latch (1) and the inner wall of the cylinder (21) that are in contact with each other are chamfer surfaces, the opening direction of which faces the door frame direction, so that the latch (1) generates oblique relative movement between the latch (1) and the damper (6) when being extended and retracted, and the extension and retraction movement of the latch (1) perpendicular to the side surface of the door leaf (2) is converted into a movement component perpendicular to the plane of the door leaf (2) by the oblique relative movement.
6. Mortise lock mechanism for a protective door according to claim 5, characterized in that the cross section of the latch (1) at one end of the door leaf (2) is an ellipsoid or a cylinder, the other end of the keyhole (3) is an ellipsoid or a cylinder with a cut-off bevel, and the angle of the inner wall bevel of the cylinder (21) corresponds to the angle of the cut-off bevel of the latch (1) and is parallel to each other.
7. Mortice lock mechanism for a protective door according to claim 1, further comprising a guide tube (4) mounted in the door leaf (2), the latch (1) extending through the guide tube (4) and telescoping within the guide tube (4).
8. A protective door comprising a mortice lock mechanism for a protective door according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745910.5A CN110409916B (en) | 2019-08-13 | 2019-08-13 | Mortise lock mechanism for protective door and protective door thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745910.5A CN110409916B (en) | 2019-08-13 | 2019-08-13 | Mortise lock mechanism for protective door and protective door thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110409916A CN110409916A (en) | 2019-11-05 |
| CN110409916B true CN110409916B (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910745910.5A Active CN110409916B (en) | 2019-08-13 | 2019-08-13 | Mortise lock mechanism for protective door and protective door thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110409916B (en) |
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| CN210738267U (en) * | 2019-08-13 | 2020-06-12 | 中国城市建设研究院有限公司 | Mortise lock mechanism for protective door and protective door thereof |
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| CN110409916A (en) | 2019-11-05 |
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