CN211691857U

CN211691857U - Novel mechanical lock body

Info

Publication number: CN211691857U
Application number: CN201922150750.8U
Authority: CN
Inventors: 杨珩; 刘海斌; 杨华
Original assignee: Liuzhou Vocational and Technical College
Current assignee: Liuzhou Vocational and Technical College
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-10-16
Anticipated expiration: 2029-12-04

Abstract

The utility model relates to a novel mechanical lock body, which comprises a door frame end lock tongue and a door lock body, wherein the door frame end lock tongue comprises a lock tongue fixing baffle, a lock tongue shell, a pressure spring and a lock tongue, the door lock body comprises a lock body baffle, a lock body shell, a slide block, a connecting rod and a rocker which are positioned in the lock body shell, when the door is closed, the front end of the lock tongue is positioned in the lock body shell, and a gap is formed between the lock tongue and the slide block; when the door is opened, the sliding block extrudes the spring bolt, the spring bolt is positioned in the spring bolt shell, the end surface of the spring bolt is flush with the opening of the spring bolt shell, and the pressure spring is in a contraction state. The spring bolt of this lock body adopts the buffering formula design when kick-backing, is showing the noise that has reduced the production of kick-backing, and this lock body simple structure makes the convenience, for traditional mechanical lock body, the noise that sends when can effectual reduction switch door.

Description

Novel mechanical lock body

Technical Field

The utility model relates to a lock body for the door, in particular to novel mechanical lock body.

Background

At present, the shapes of the household door and the bathroom door lock on the market are approximately the same, the structure is simple, and the price is low. But with the continuous improvement of the living standard of people, the pursuit of the household life also has higher requirements. Especially, the old and children need to have a rest and study in a quiet space, the door opening and closing noise of the door can interrupt the rhythm of the life of people, and the daily life is influenced. The door and the bathroom door are the articles with the highest household use frequency, and the quality of the use of the door and the bathroom door directly influences the quality of life of people. The room door and the toilet door are respectively a barrier for connecting a bedroom and a bathroom with a living room, and the noise generated by opening and closing the door lock directly influences the quality of daily life of people, particularly the sleeping quality while protecting the privacy of people.

Although the magnetic lock body is silent, the magnetic lock body is not suitable for a door body made of a ferrous material, for example, iron exists outside a steel wood door, a magnetic field exists between the iron and a magnet, demagnetization can be caused after the magnetic field exists for a long time, and therefore the magnetic lock body cannot be installed on the steel wood door. The existing mechanical room door lock has the following defects in the aspects of structure and silence: 1. the traditional room door lock body spring bolt rebounds by means of the thrust of an internal spring, so that the spring bolt can rebound rapidly, the elastic force of the internal spring is set to be larger, the spring bolt is not buffered in the rebounding process, and larger noise can be generated in the rebounding process; 2. the spring bolt of traditional door lock body is installed on the door, and the door is opened to the room in usually, and the slope terminal surface of spring bolt sets up from the outer door of door in, and the sound of spring bolt striking door frame can be along the transmission in the slope terminal surface of spring bolt to the door when closing the door, produces great noise.

The sound generated by opening and closing the room door and the toilet door can influence the daily life of people, particularly the old with poor sleeping quality and hypertension and other diseases. Therefore, it is necessary to develop a door lock body with a more reasonable structure to minimize noise and create a more comfortable living environment.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the utility model provides a novel mechanical lock body, the spring bolt of this lock body adopts the buffering formula design when kick-backing, is showing and has reduced the noise that the resilience produced, and this lock body simple structure makes the convenience, for traditional mechanical lock body, the noise that can send when effectual reduction switch door.

The technical scheme for solving the technical problems is as follows: a novel mechanical lock body comprises a door frame end lock tongue and a door lock body, wherein the door frame end lock tongue comprises a lock tongue fixing baffle plate, a lock tongue shell, a pressure spring and a lock tongue, the lock tongue shell is of a hollow three-dimensional structure with an opening, the opening end of the lock tongue shell is defined as a front end, the other end of the lock tongue shell is a tail end, the lock tongue is installed in the lock tongue shell, the pressure spring is connected between the lock tongue and the tail end of the lock tongue shell, a gap is formed between the outer wall of the lock tongue and the inner wall of the side surface of the lock tongue shell, the front end of the lock tongue is also provided with an inclined end surface, the tail end of the lock tongue is provided with a sealing ring for sealing the gap between the outer wall of the lock tongue and the inner wall of the lock tongue shell, the tail end of the lock tongue shell is provided with an exhaust hole, the lock tongue is provided with a horizontal sliding groove matched with the guide pin, and the guide pin is positioned in the horizontal sliding groove;

the room door lock body comprises a lock body baffle, a lock body shell, a sliding block, a connecting rod and a rocker, wherein the connecting rod and the rocker are positioned in the lock body shell, the lock body shell is of a hollow three-dimensional structure with an opening, a through groove for the connecting rod and the rocker to move is further formed in the lower side surface of the lock body shell, the opening end of the lock body shell is defined as the front end, the other end of the lock body shell is defined as the tail end, the sliding block is movably installed in the lock body shell, a sliding block connecting shaft is further arranged on the sliding block, one end of the connecting rod is connected with the sliding block through a shaft hinge, the other end of the connecting rod is connected with the rocker through a hinge, the rocker is movably installed at;

when the door is closed, the front end of the lock tongue is positioned in the lock body shell, and a gap is formed between the lock tongue and the sliding block; when the door is opened, the sliding block extrudes the spring bolt, the spring bolt is positioned in the spring bolt shell, the end surface of the spring bolt is flush with the opening of the spring bolt shell, and the pressure spring is in a contraction state.

And the lock body shell is also provided with a limit pin for limiting the return position of the sliding block.

The clearance between spring bolt outer wall and the spring bolt shell side inner wall is 0.1 mm.

The middle of the sliding block is provided with a pin hole, and the sliding block connecting shaft is arranged in the pin hole.

The utility model discloses mainly be to the spring bolt resilience of current lock body can produce great noise and spring bolt and strike the problem of the noise of door frame production to the transmission in the room, the novel mechanical lock body of design, adopt the buffering to postpone when the spring bolt resilience to impel, reduce the noise that the switch door in-process produced by a wide margin, build more comfortable living environment. The utility model discloses the beneficial effect who has divides as follows:

1. the spring bolt adopts the buffering design of time delay resilience, opens promptly on the spring bolt shell and has had the inlet port, can only advance slowly through the inlet port when the spring bolt kick-backs, has prolonged the resilience time of spring bolt, and outside moving speed is slow when making the spring bolt kick-back, reduces the noise that the spring sent at the process of kick-backing.

2. The spring bolt is designed on the door frame, and a part of noise generated when the spring bolt is contacted with a door is transmitted in a door slot, so that the noise is low compared with the traditional lock body. The spring bolt is installed on the door frame, and in order to facilitate closing the door, the spring bolt front end still is provided with by the interior slope terminal surface to the outer slope of door, and when closing the door, the sound of lock body baffle and spring bolt touching is by the interior transmission outside door of door along the direction of spring bolt slope terminal surface, and most noise spreads in the crack, for traditional lock body, very big reduction the noise that lock body baffle and spring bolt touched the production this moment.

3. The utility model discloses a pure mechanical lock body, no magnetism, application scope is wider.

4. The inside slider-crank mechanism that adopts of door lock body, simple and practical, the resistance is little.

5. The mechanical lock body has the advantages of simple structure, convenient manufacture and low cost.

The technical features of the novel mechanical lock body of the present invention will be further described with reference to the accompanying drawings and embodiments.

Drawings

FIG. 1: the utility model discloses a door frame end spring bolt front view.

FIG. 2: the utility model discloses a door frame end spring bolt left side view.

FIG. 3: the utility model discloses a door frame end lock tongue right side view.

FIG. 4: fig. 1 is a sectional view taken along line a-a.

FIG. 5: the utility model discloses a door lock body front view.

FIG. 6: the utility model discloses a room door lock body left side view.

FIG. 7: fig. 6 is a cross-sectional view taken along line C-C.

FIG. 8: the utility model discloses a door lock body right side view.

FIG. 9: fig. 5 is a sectional view taken along line B-B.

FIG. 10: the utility model discloses user state diagram (the state of closing the door).

FIG. 11: the utility model discloses user state diagram (the state of opening the door).

In the figure: 1-bolt fixing baffle, 101-screw hole I, 2-bolt shell, 3-one-way valve, 4-exhaust hole, 5-sealing ring, 6-pressure spring, 7-fixing screw, 8-bolt, 81-inclined end face, 9-guide pin, 10-horizontal sliding groove, 11-sliding block, 12-sliding block connecting shaft, 13-connecting rod, 14-rocker, 15-locking groove, 16-lock body shell, 17-lock body baffle, 171-screw hole II, 18-limit pin.

Detailed Description

Example 1: a novel mechanical lock body is disclosed, as shown in figures 1-9, comprising a door frame end lock tongue and a door lock body, wherein the door frame end lock tongue comprises a lock tongue fixing baffle plate 1, a lock tongue shell 2, a pressure spring 6 and a lock tongue 8, the lock tongue shell is a hollow three-dimensional structure with an opening, the hollow part is cylindrical, the lock tongue is cylindrical, the opening end of the lock tongue shell is defined as the front end, the other end is the tail end, the lock tongue is arranged in the lock tongue shell, the pressure spring is connected between the lock tongue and the tail end of the lock tongue shell, the tail end of the lock tongue is provided with a spring fixing groove, one end of the pressure spring is contacted with the tail end of the lock tongue shell, the other end is fixed in the spring fixing groove of the lock tongue by a fixing screw 7, a gap is formed between the outer wall of the lock tongue and the inner wall of the side surface of the lock tongue shell, and a sealing ring 5 for sealing a gap between the outer wall of the lock tongue and the inner wall of the lock tongue shell is arranged at the tail end of the lock tongue and mainly plays a role in sealing compressed air. The spring bolt shell tail end is opened there is little exhaust hole 4, and spring bolt shell tail end still is provided with can be toward the outer carminative check valve 3 of spring bolt shell, and it has through-hole I to open on the spring bolt fixed stop, and the spring bolt shell is installed on spring bolt fixed stop, and spring bolt fixed stop's through-hole I aligns with the opening of spring bolt shell, and spring bolt fixed stop 1 is last to be opened there are two screw holes I101, supplies screw or rivet to hold the lock tongue fixed mounting on the door frame with the door frame. The spring bolt shell is also provided with a guide limit pin 9, the spring bolt is provided with a horizontal sliding groove 10 matched with the guide pin, and the guide pin is positioned in the horizontal sliding groove. The bolt 8 can extend outwards under the action of the pressure spring 6, and the guide limit pin 9 can limit the axial extension of the bolt 8 and limit the bolt to rotate circumferentially.

The room lock body includes lock body baffle 17, lock body shell 16, slider 11 and is located connecting rod 13, the rocker 14 of lock body shell, the lock body shell is hollow has open-ended spatial structure, and its cavity is cylindrical, and the slider is cylindrical, and the downside of lock body shell still opens the logical groove 161 that supplies connecting rod and rocker motion, and the open end of definition lock body shell is the front end, and the other end is the tail end, and slider movable mounting is in lock body shell, and the slider is clearance fit with lock body shell, and slider 11 can freely slide in lock body shell is inside. The middle of the sliding block 11 is provided with a pin hole and a sliding block connecting shaft 12, one end of the connecting rod is hinged with the sliding block connecting shaft, the other end of the connecting rod is hinged with the rocker, the rocker is movably installed at the tail end of the lock body baffle, a locking groove 15 for controlling the rotation of the rocker is formed in the rocker, the sliding block 11, the connecting rod 13 and the rocker 14 form a crank sliding block structure, and the end part of the rocker 14 swings by taking the locking groove 15 as a central fulcrum. Both the linkage 13 and the rocker 14 extend out of the through slot 161 of the lock body housing 16. The spring bolt fixed stop is provided with a through hole II, the lock body shell is fixedly welded on the lock body stop, and the through hole II of the lock body stop is aligned with the opening of the lock body shell. Two screw holes II 171 are arranged on the lock body baffle and are used for being connected with the door lock hole.

When the door is closed, the front end of the lock tongue is positioned in the lock body shell, the pressure spring 6 is in a natural state or a contraction state, and a gap is formed between the lock tongue and the sliding block; when the door is opened, the sliding block extrudes the spring bolt, the spring bolt is positioned in the spring bolt shell, the end surface of the spring bolt is flush with the opening of the spring bolt shell, and the pressure spring 6 is in a contraction state.

In this embodiment, the bolt fixing baffle 1 and the bolt housing 2 are integrally formed. As a change, the bolt fixed baffle 1 and the bolt shell 2 can also be made into a split type, and can be determined according to the control requirements of the difficulty and the cost of actual processing.

In this embodiment, the lock body housing 16 is further provided with a limit pin 18 for limiting a return position of the slider, so as to limit the axial movement of the slider 11.

In this embodiment, the clearance between spring bolt outer wall and the spring bolt shell side inner wall is 0.1 mm. As a transform, the clearance between the outer wall of the lock tongue and the inner wall of the side face of the lock tongue shell can be determined according to actual conditions, and the lock tongue can move smoothly in the lock tongue shell as long as the lock tongue is ensured.

The use process comprises the following steps: the door frame fixing lock tongue is arranged in a lock groove on a fixed door frame, and screws are put into the upper screw hole I and the lower screw hole I of the lock tongue fixing baffle plate 1 to be screwed down or fixed by rivets. The door lock body is arranged in a door lock hole, and is placed into the upper screw hole II and the lower screw hole II of the lock body baffle 17 by screws or rivets and fixed, so that the lock body is installed. After the lock body is installed, the door handles are sequentially installed, and the lock body is designed according to the size of the appearance size of the lock body on the market, so that the door handle is universal and compatible with the door handles on the market (the existing door handles have an automatic return function).

When the door is closed, the door is pushed to move towards the closing direction, when the door contacts the inclined end surface 81 of the bolt 8, the bolt 8 moves inwards, and because the internal air cannot be exhausted instantly from the small exhaust hole 4, the check valve 3 is opened at the moment, a large amount of air is exhausted, and the speed of the bolt 8 moving inwards is increased. The door continues to move, and when the door moves to the position where the bolt 8 is aligned with the inner hole of the door lock body baffle 17, the bolt 8 pops out under the action of the internal pressure spring 6 and enters the inner hole of the lock body shell 16, and the door closing action is completed, as shown in fig. 10. Spring bolt 8 is at the in-process of kick-backing, and afterbody inner chamber check valve 3 is closed, leans on little exhaust hole 4 to admit air, and spring bolt 8 slowly outwards removes, avoids removing in the twinkling of an eye and produces great noise, even in the spring bolt gets into lock body shell 16, because remove slowly, the production of the same noise that can greatly reduced.

When the door is opened, the door handle is rotated, so that the lock groove 15 is driven to rotate, the lock groove 15 rotates to drive the rocker 14 to swing by an angle, the rocker 14 drives the connecting rod 13 to push the sliding block 11 to move towards the opening of the lock body shell 16, the sliding block pushes the bolt 8 to move towards the tail end of the bolt shell 2, the one-way valve 3 is opened, and air is rapidly discharged. When the sliding block 11 pushes the bolt 8 to be flush with the bolt fixing baffle 1, the door can be opened. A gap exists between the bolt fixing baffle 1 and the lock body baffle 17, and the bolt 8 is limited by the small exhaust hole 4 to be ejected slowly, so that the bolt does not need to worry about rebounding and entering the lock hole again.

After the door opening action is finished, the door handle returns under the action of the spring inside the door handle, so that the sliding block 11 is driven to return inwards to the position of the limiting pin.

Claims

1. A novel mechanical lock body is characterized in that: the door frame end lock tongue comprises a lock tongue fixing baffle plate (1), a lock tongue shell (2), a pressure spring (6) and a lock tongue (8), wherein the lock tongue shell is of a hollow three-dimensional structure with an opening, the opening end of the lock tongue shell is defined as a front end, the other end of the lock tongue shell is a tail end, the lock tongue is arranged in the lock tongue shell, the pressure spring is connected between the lock tongue and the tail end of the lock tongue shell, a gap is formed between the outer wall of the lock tongue and the inner wall of the side surface of the lock tongue shell, the front end of the lock tongue is also provided with an inclined end surface (81), the tail end of the lock tongue is provided with a sealing ring (5) for sealing the gap between the outer wall of the lock tongue and the inner wall of the lock tongue shell, the tail end of the lock tongue shell is provided with an exhaust hole (4), the, the spring bolt shell is also provided with a guide limit pin (9), the spring bolt is provided with a horizontal sliding groove (10) matched with the guide pin, and the guide pin is positioned in the horizontal sliding groove;

the house door lock body comprises a lock body baffle (17), a lock body shell (16), a sliding block (11), a connecting rod (13) and a rocker (14), wherein the connecting rod (13) and the rocker (14) are positioned in the lock body shell, the lock body shell is of a hollow three-dimensional structure with an opening, a through groove (161) for the connecting rod and the rocker to move is further formed in the lower side surface of the lock body shell, the opening end of the lock body shell is defined as the front end, the other end of the lock body shell is defined as the tail end, the sliding block is movably arranged in the lock body shell, a sliding block connecting shaft (12) is further arranged on the sliding block, one end of the connecting rod is hinged with the sliding block connecting shaft, the other end of the connecting rod is hinged with the rocker, the rocker is movably arranged;

when the door is closed, the front end of the lock tongue is positioned in the lock body shell, and a gap is formed between the lock tongue and the sliding block; when the door is opened, the sliding block extrudes the spring bolt, the spring bolt is positioned in the spring bolt shell, the end surface of the spring bolt is flush with the opening of the spring bolt shell, and the pressure spring (6) is in a contraction state.

2. The novel mechanical lock of claim 1, wherein: and the lock body shell (16) is also provided with a limiting pin (18) for limiting the return position of the sliding block.

3. The new mechanical lock according to claim 1 or 2, characterized in that: the clearance between spring bolt outer wall and the spring bolt shell side inner wall is 0.1 mm.

4. The new mechanical lock according to claim 1 or 2, characterized in that: the middle of the sliding block is provided with a pin hole, and the sliding block connecting shaft is arranged in the pin hole.