CN208518505U - Door latch apparatus - Google Patents
Door latch apparatus Download PDFInfo
- Publication number
- CN208518505U CN208518505U CN201820789360.8U CN201820789360U CN208518505U CN 208518505 U CN208518505 U CN 208518505U CN 201820789360 U CN201820789360 U CN 201820789360U CN 208518505 U CN208518505 U CN 208518505U
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- China
- Prior art keywords
- shank portion
- door latch
- latch apparatus
- framework
- hook body
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- 230000009471 action Effects 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims description 11
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- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008092 positive effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
The utility model provides a kind of door latch apparatus, and for locking mutually matched framework and fan body, door latch apparatus includes: hook body segment, and hook body segment is mounted in framework, has between hook body segment and framework and accommodates gap；Shank portion, shank portion position is adjustably mounted on fan body, shank portion is at least partly matched with receiving gap, when fan body and framework are closed, make shank portion be pressed in hook body segment and move along hook body segment until entering under the action of pressing force to accommodate in gap, fan body and framework are locked.The door latch apparatus of the utility model solves the problems, such as that bolt in the prior art cannot achieve and locks a door automatically.
Description
Technical field
The utility model relates to field of lockset, in particular to a kind of door latch apparatus.
Background technique
Bolt is the simple components that one kind prevents door (window) from opening, and modern bolt is usually metal material, is divided into two parts,
A part has mobilizable bolt, and a part is a latch hole (being also " bolt staple ").The part of usual rod failure is fixed on
Men Shang, latch hole are fixed on door (window) frame, and position will be corresponding to.It is simpler than the structure of lock very much, but effect is suitable.Make
Used time, bolt, which is inserted into latch hole, to lock a door.Bolt is that bolt function is realized by bolt sliding in the prior art.
But bolt insertion latch hole must be just able to achieve and locked a door manually after shutdown by existing bolt, if forget after closing the door insertion bolt or
Fail to be fully inserted into, then door (window) oneself may be made to open or be dragged out by pushing away.As Fig. 1 is just inserted in door when bolt 5 is released
In latch aperture 2, achieve the purpose that lock a door；When bolt 5 is released out of latch hole 2, door can free switch.
However, existing bolt is because of its design feature, when switch gate (window) require manually by bolt be inserted into latch hole into
Row locking, if personnel do not carry out the operation, door (window) also can not be just latched, if forgetting to be inserted into bolt after closing the door or fail completely
Insertion may then make door (window) oneself open or be dragged out by pushing away.
Utility model content
The main purpose of the utility model is to provide a kind of door latch apparatus, can not be real to solve bolt in the prior art
The problem of now locking a door automatically.
To achieve the goals above, the utility model provides a kind of door latch apparatus, for locking mutually matched framework
And fan body, door latch apparatus include: hook body segment, hook body segment is mounted in framework, is had between hook body segment and framework and is accommodated gap；Pin
Body portion, shank portion position are adjustably mounted on fan body, and shank portion is at least partly matched with receiving gap, in fan body
When being closed with framework, so that shank portion is pressed in hook body segment and is moved under the action of pressing force along hook body segment and accommodated until entering
In gap, fan body and framework are locked.
Further, hook body segment has sliding surface, and sliding surface connects with the inner wall for accommodating gap, in fan body and framework
Make shank portion be pressed on sliding surface and move along sliding surface until entering when closure to accommodate in gap.
Further, sliding surface includes curved face and transition cambered surface, and curved face passes through transition cambered surface and accommodates the interior of gap
Wall surface connects, so that shank portion is successively slided along curved face and transition cambered surface；The coupler body tip of transition cambered surface composition hook body segment.
Further, hook body segment includes mounting blocks and the coupler body main body positioned at mounting blocks lower end, mounting blocks, coupler body main body with
And formed between framework and accommodate gap, hook body segment is fixed by mounting blocks and framework.
Further, shank portion has for locking the locked position of fan body and being used to open the evacuation position of fan body, sells
Body portion can be rotatably set to turn to locked position or evacuation position, to pass through rotation shank portion and turn it by locked position
It moves to when avoiding position, removes shank portion to open fan body out of receiving gap.
Further, door latch apparatus further include: the first limiting section, the first limiting section are installed on the fan body, so that shank portion
The backstop shank portion when fan body is in and opens or closes state, so that shank portion is in locked position.
Further, shank portion is provided with clump weight far from one end of hook body segment, and clump weight is arranged in shank portion far from door
The side of fan or sash, shank portion are in locked position under the action of clump weight and the first limiting section.
Further, door latch apparatus further include: the second limiting section, the second limiting section are mounted on door leaf or sash, with
Backstop shank portion when shank portion rotates, so that shank portion is in evacuation position.
Further, door latch apparatus further include: shaft, shaft are fixed on door leaf or sash, and shank portion has peace
Hole is filled, shank portion is set in shaft by mounting hole, so that shank portion rotates around the axis.
Further, door latch apparatus includes fastener, and shaft is at least partly provided with external screw thread, and fastener has and turns
The internal screw thread that the external screw thread of axis matches, so that shank portion is limited in shaft by fastener.
The door latch apparatus of the utility model can close fan body by shank portion hook body segment and position-adjustable is arranged
When, so that shank portion is pressed in hook body segment and is moved along hook body segment until entering under the action of pressing force and accommodates in gap, with
Fan body and framework are locked.Shank portion is hooked in it by the door latch apparatus using hook body segment, forgets to be inserted into door after avoiding shutdown
The fan body oneself fastened with a bolt or latch or occurred when failing to be fully inserted into is opened or is pushed away the case where dragging out, and realizes and locks a door automatically, regardless of to the people
With still industry, the positive effect for having ensured the safety of the person and public or private property is all played.In addition, door latch apparatus installation and behaviour
Make all very simply, accessory is easy to process.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of bolt in the prior art；
Fig. 2 shows the structural schematic diagrams of the embodiment of door latch apparatus according to the present utility model；
Fig. 3 shows the structural schematic diagram of the hook body segment of door latch apparatus according to the present utility model；
Fig. 4 shows the top view when door latch apparatus in Fig. 2 is in evacuation position；
Fig. 5 shows the top view when door latch apparatus in Fig. 2 is in locked position；
Fig. 6 shows door latch apparatus according to the present utility model from the motion state schematic diagram for reaching lock；And
Fig. 7 shows the partial enlarged view of the hook body segment of door latch apparatus according to the present utility model.
Wherein, the above drawings include the following reference numerals:
10, hook body segment；11, sliding surface；13, transition cambered surface；14, mounting blocks；15, coupler body main body；20, gap is accommodated；21,
Framework；23, fan body；30, shank portion；31, mounting hole；40, clump weight；50, the first limiting section；60, the second limiting section；70, turn
Axis；80, fastener；90, self-close hinge.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
The utility model provides a kind of door latch apparatus, please refers to Fig. 2 to Fig. 7, and door latch apparatus cooperates for locking
Framework 21 and fan body 23, door latch apparatus include: hook body segment 10, hook body segment 10 is mounted in framework 21, hook body segment 10 and framework
Have between 21 and accommodates gap 20；Shank portion 30 is mounted on fan body 23 to 30 position-adjustable of shank portion, and shank portion 30 is extremely
Small part is matched with gap 20 is accommodated, be pressed on shank portion 30 in hook body segment 10 when fan body 23 and framework 21 are closed
And move along hook body segment 10 until entering and accommodated in gap 20 under the action of pressing force, fan body 23 and framework 21 are locked.
The door latch apparatus of the utility model can closed by shank portion 30 hook body segment 10 and position-adjustable is arranged
When fan body 23, so that shank portion 30 is pressed in hook body segment 10 and is moved under the action of pressing force along hook body segment 10 and hold until entering
It receives in gap 20, fan body 23 and framework 21 is locked.Shank portion is hooked in it by the door latch apparatus using hook body segment, is avoided
Forget that the fan body oneself for being inserted into bolt or occurring when failing to be fully inserted into is opened or pushed away the case where dragging out after shutdown, realizes certainly
It is dynamic to lock a door, no matter the positive effect for having ensured the safety of the person and public or private property is all played to civilian or industrial.In addition, should
Door latch apparatus installation and operation are all very simple, and accessory is easy to process.
Wherein, framework is doorframe or window frame or door leaf or sash, and fan body is door leaf or sash.
Wherein, which is suitable for opposite opened or single open-type door and window.
When it is implemented, the diameter in shank portion 30, which is less than, accommodates gap 20.
When it is implemented, as shown in figure 3, hook body segment 10 has sliding surface 11, sliding surface 11 and the inner wall for accommodating gap 20
Face connects, be pressed on shank portion 30 on sliding surface 11 and moved along sliding surface 11 until
Into in receiving gap 20.
When shank portion 30 touches the sliding surface 11 of hook body segment 10, by two power, one is that fan body closes in shank portion 30
Forward thrust f when closing1, the other is sliding surface 11 is to 30 support force f of shank portion2, because of f1Much larger than f2, therefore it is common in two power
Under effect, resultant force f is formed, force analysis is as shown in Figure 3 and Figure 7.Further, shank portion 30 is under the action of resultant force f, continue to
Lower movement, after being moved to minimum point, fan body has been in closed state at this time, and shank portion 30 is detached from 11 surface of sliding surface, loses
Thrust f is removed1With support force f2.However due to lever principle, entire shank portion 30 is lifted upwards close to one end of the framework,
It eventually enters into and accommodates in gap 20, complete the closing process of entire fan body.Fig. 6 is door latch apparatus from the motion state for reaching lock
Figure.
When it is implemented, as shown in Figure 3 and Figure 7, sliding surface 11 includes curved face and transition cambered surface 13, and curved face passed through
It crosses cambered surface 13 and connects with the inner wall for accommodating gap 20, so that shank portion 30 is successively slided along curved face and transition cambered surface 13；It crosses
Cross the coupler body tip that cambered surface constitutes hook body segment.Such setting can be such that shank portion 30 more smoothly slides into when being moved to minimum point
It accommodates in gap 20, guarantees smooth when fan body is closed.
In the present embodiment, as shown in figure 3, hook body segment 10 includes mounting blocks 14 and the coupler body master positioned at 14 lower end of mounting blocks
Body 15, forms between mounting blocks 14, coupler body main body 15 and framework 21 and accommodates gap 20, and hook body segment 10 passes through mounting blocks 14 and frame
Body 21 is fixed.
Preferably, mounting blocks 14 and framework 21 are welded to connect.
Preferably, mounting blocks 14 are connect with framework 21 by fastener.Preferably, fastener is screw.
In the present embodiment, as shown in Fig. 2, shank portion 30 is with the locked position for locking fan body and is used to open fan
The evacuation position of body, shank portion 30 can be rotatably set to turn to locked position or evacuation position, to pass through rotation shank portion
30 and make its by locked position turn to evacuation position when, make shank portion 30 from accommodate gap in remove to open fan body.
Wherein, Fig. 2 a into Fig. 5 indicates that locked position, b indicate evacuation position.
When it is implemented, first limiting section 50 is mounted on fan as shown in Fig. 2, door latch apparatus further includes the first limiting section 50
On body 23, so that backstop shank portion 30 when fan body 23 is in and opens or closes state of shank portion 30, so that shank portion 30 is in
Locked position.
In the present embodiment, as shown in Figure 4 and Figure 5, shank portion 30 is provided with clump weight 40 far from one end of hook body segment 10,
Clump weight 40 is arranged in side of the shank portion 30 far from door leaf or sash, and shank portion 30 is in clump weight 40 and the first limiting section 50
Effect is lower to be in locked position.Clump weight 40 is used to increase the torque of the one end of shank portion 30 far from door leaf or sash, can be by pin
One end of the close framework in body portion 30 is lifted automatically, and such setting avoids shank portion 30 from dropping out hook body segment 10.
Wherein, the size of clump weight 40 can be determined according to the size in fan body and shank portion 30, but can not be too small or excessive,
It is too small that torque can be made insufficient, shank portion 30 cannot be lifted automatically and be goed deep into hook body segment 10；It is excessive, shank portion 30 may be pressed
It is curved.
Preferably, clump weight 40 is connect by welding with shank portion 30.
Preferably, clump weight 40 is connect by fastener with shank portion 30.Preferably, fastener is bolt.
When it is implemented, second limiting section 60 is mounted on door as shown in Fig. 2, door latch apparatus further includes the second limiting section 60
On fan or sash, with the backstop shank portion 30 when shank portion 30 rotates, so that shank portion 30 is in evacuation position.
In order to realize the change of 30 position of shank portion, as shown in Fig. 2, door latch apparatus further includes shaft 70, shaft 70 is fixed
It is arranged on door leaf or sash, shank portion 30 has mounting hole 31, and shank portion 30 is set in shaft 70 by mounting hole 31, with
Make 70 rotation around the shaft of shank portion 30.
Preferably, shaft 70 is connect by welding with fan body.
Preferably, shaft 70 is connect by fastener with fan body.Preferably, fastener is screw.
In order to fix shank portion 30, as shown in Figure 4 and Figure 5, door latch apparatus includes fastener 80, and shaft 70 is at least partly
It is provided with external screw thread, fastener 80 has the internal screw thread to match with the external screw thread of shaft 70, so that shank portion 30 passes through fastening
Part 80 limits in shaft 70.
Preferably, shank portion 30 is round bar.
Preferably, the first limiting section 50 and the second limiting section 60 are round bar.
Preferably, the first limiting section 50 and the second limiting section 60 are connect with fan body by welding.
Preferably, the first limiting section 50 and the second limiting section 60 are connect by fastener with fan body.
Preferably, hook body segment 10 and shank portion 30 are ferrous material or wood materials or plastic-steel.
In the present embodiment, door latch apparatus further includes self-close hinge 90, to realize being automatically closed for fan body.
When it is implemented, 40 shape of clump weight can not known, depending on itself hobby, or it is fabricated to ornament.
When it is implemented, bolt, screw, riveting, weldering can be used in the connection of door latch apparatus each section and framework or fan body
The methods of connect.
When it is implemented, door latch apparatus can be used for door, in window and other similar device or equipment.
When it is implemented, for opposite opened door or window wherein a fan fixation doorframe, another fan freely openable can will be considered as.
When it is implemented, hook body segment 10 can also be mounted on a side by the door latch apparatus, shank portion 30 is mounted on doorframe one
Side.
During closing fan body, fan body is displaced dynamic from enabling position to locking a door, i.e., fan body is mobile with shank portion, because of the
The limitation of one limiting section and the gravity of clump weight, shank portion are in horizontal or close to horizontal position.
During opening fan body, the clump weight in hand steered shank portion mentions upwards, until the close frame in shank portion
One end of body, which is detached from, accommodates gap, and fan body is unlocked at this time, and being pulled back dynamic fan body can open it.Counterweight is unclamped after opening
Block, clump weight drives shank portion to decline far from one end of the framework under the effect of gravity, while the close frame in shank portion
One end position of body is lifted, and shank portion returns to horizontal or close to horizontal position under the obstruction of the first limiting section.
The utility model has the beneficial effects that
Existing metal latch actively inserts door by personnel, can inevitably encounter bolt and fail to be plugged or forget the case where inserting door,
Therefore it will cause criminal's burglary.The interior of industrial plant workshop especially electrical equipment, the requirement closed the door at any time is more
Add strictly, cause to shock by electricity first is that irrelevant personnel is avoided to enter after locking a door, second is that avoiding toy from entering causes equipment damage.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
The door latch apparatus of the utility model can closed by shank portion 30 hook body segment 10 and position-adjustable is arranged
When fan body 23, so that shank portion 30 is pressed in hook body segment 10 and is moved under the action of pressing force along hook body segment 10 and hold until entering
It receives in gap 20, fan body 23 and framework 21 is locked.Shank portion is hooked in it by the door latch apparatus using hook body segment, is avoided
Forget that the fan body oneself for being inserted into bolt or occurring when failing to be fully inserted into is opened or pushed away the case where dragging out after shutdown, realizes certainly
It is dynamic to lock a door, no matter the positive effect for having ensured the safety of the person and public or private property is all played to civilian or industrial.In addition, should
Door latch apparatus installation and operation are all very simple, and accessory is easy to process.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of door latch apparatus, for locking mutually matched framework (21) and fan body (23), which is characterized in that the bolt dress
It sets and includes:
Hook body segment (10), the hook body segment (10) are mounted on framework (21), the hook body segment (10) and the framework (21) it
Between have accommodate gap (20)；
Shank portion (30) is mounted on the fan body (23) to shank portion (30) position-adjustable, the shank portion (30)
At least partly matched with the receiving gap (20), to make institute when the fan body (23) and the framework (21) are closed
State shank portion (30) be pressed on the hook body segment (10) and it is mobile along the hook body segment (10) under the action of pressing force until
In into the receiving gap (20), the fan body (23) and the framework (21) are locked.
2. door latch apparatus according to claim 1, which is characterized in that the hook body segment (10) has sliding surface (11), institute
It states sliding surface (11) to connect with the inner wall for accommodating gap (20), to be closed in the fan body (23) and the framework (21)
When be pressed on the shank portion (30) on the sliding surface (11) and mobile along the sliding surface (11) until entering the appearance
It receives in gap (20).
3. door latch apparatus according to claim 2, which is characterized in that the sliding surface (11) includes curved face and transition arcs
Face (13), the curved face is connected by the transition cambered surface (13) with the inner wall for accommodating gap (20), so that described
It is successively slided along the curved face and the transition cambered surface (13) in shank portion (30)；The transition cambered surface constitutes the hook body segment
Coupler body tip.
4. door latch apparatus according to claim 2, which is characterized in that the hook body segment (10) includes mounting blocks (14) and position
Coupler body main body (15) in the mounting blocks (14) lower end, the mounting blocks (14), the coupler body main body (15) and the frame
The receiving gap (20) is formed between body (21), the hook body segment (10) passes through the mounting blocks (14) and the framework (21)
It is fixed.
5. door latch apparatus according to claim 1, which is characterized in that the shank portion (30) has for locking the fan
The locked position of body and the evacuation position for being used to open the fan body, the shank portion (30) can be rotatably set to turn to
Locked position or the evacuation position are stated, by rotating the shank portion (30) and it being made to turn to institute by the locked position
When stating evacuation position, remove the shank portion (30) to open the fan body out of described receiving gap.
6. door latch apparatus according to claim 5, which is characterized in that the door latch apparatus further include:
First limiting section (50), first limiting section (50) is mounted on the fan body (23), so that the shank portion (30)
The shank portion (30) described in backstop when the fan body (23) are in and open or close state, so that the shank portion (30) is in lock
Tight position.
7. door latch apparatus according to claim 6, which is characterized in that the shank portion (30) is far from the hook body segment (10)
One end be provided with clump weight (40), the clump weight (40) setting the shank portion (30) far from door leaf or sash one
Side, the shank portion (30) are in the locking position under the action of clump weight (40) and first limiting section (50)
It sets.
8. door latch apparatus according to claim 5, which is characterized in that the door latch apparatus further include:
Second limiting section (60), second limiting section (60) are mounted on door leaf or sash, to revolve in the shank portion (30)
Shank portion (30) described in backstop when turning, so that the shank portion (30) is in the evacuation position.
9. door latch apparatus according to claim 1, which is characterized in that the door latch apparatus further include:
Shaft (70), the shaft (70) are fixed on door leaf or sash, and the shank portion (30) has mounting hole (31),
The shank portion (30) is set on the shaft (70) by the mounting hole (31), so that the shank portion (30) is around described
Shaft (70) rotation.
10. door latch apparatus according to claim 9, which is characterized in that the door latch apparatus includes fastener (80), described
Shaft (70) is at least partly provided with external screw thread, and the fastener (80) has to be matched with the external screw thread of the shaft (70)
Internal screw thread so that the shank portion (30) by the fastener (80) limit on the shaft (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820789360.8U CN208518505U (en) | 2018-05-25 | 2018-05-25 | Door latch apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820789360.8U CN208518505U (en) | 2018-05-25 | 2018-05-25 | Door latch apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208518505U true CN208518505U (en) | 2019-02-19 |
Family
ID=65340149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820789360.8U Active CN208518505U (en) | 2018-05-25 | 2018-05-25 | Door latch apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208518505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989642A (en) * | 2019-03-27 | 2019-07-09 | 重庆达航工业有限公司 | Go up and down the compartment Locking means of door in compartment |
-
2018
- 2018-05-25 CN CN201820789360.8U patent/CN208518505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989642A (en) * | 2019-03-27 | 2019-07-09 | 重庆达航工业有限公司 | Go up and down the compartment Locking means of door in compartment |
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