CN220504790U - Oblique tongue lock for preventing door from being inserted - Google Patents

Abstract

The utility model relates to an anti-inserting door latch lock, which comprises a lock shell provided with a latch opening, a peach pulling component and a latch component, wherein the latch component comprises a latch main body, the latch main body is provided with a latch groove at a non-inclined side, an anti-inserting driving tongue is hinged in the latch groove in a swinging way, a stop part matched with the inner side of the lock shell is arranged on the anti-inserting driving tongue, in a door opening state, the stop part is swung out of the latch groove and is propped against the inner side of the lock shell to inhibit the outward acting force of the peach pulling component, so that only the latch section of the latch main body extends out of the latch opening, in a door closing state, the stop part is swung into the latch groove and leaves the inner side of the lock shell to release the outward acting force of the peach pulling component, so that a small part of a latch root section in the latch main body extends out of the latch opening, and in the door closing state, the latch main body replaces the outward acting force of the latch section through the latch root section, thereby playing the role of inserting the door lock, and improving the anti-theft performance.

Description

Oblique tongue lock for preventing door from being inserted

Technical Field

The utility model relates to the field of door locks, in particular to an oblique tongue lock for preventing an inserting door.

Background

At present, various door locks in the market have various functions, a main lock tongue and an oblique tongue combination are generally arranged on a lockset, an oblique tongue component keeps a state of extending out of a lock body, and the main lock tongue is generally a large square tongue; when the door is closed, the oblique tongue component automatically stretches out of the lock body, the main lock tongue is locked by special door locking actions such as a key, a handle is arranged on a platform, and the like, if the door is closed, the main lock tongue door locking action is forgotten, and when the door is opened, only the oblique tongue component is used for locking, and when a thinner object such as a card is inserted into a door slot at the outer part of the door, the oblique tongue component is retracted to open the door, and the door is further stolen, so that the hidden safety hazard is relatively large, and the applicant provides a new scheme capable of preventing the insertion of the soft card to jack the movable lock tongue through the improvement and perfection of the existing door lock structure, so that the novel scheme is used for consumers to select.

Disclosure of Invention

The utility model aims to solve the existing problems and provide the oblique tongue lock for the anti-insertion door, which has the main effects of replacing the door gap position of the oblique tongue section through the tongue root section, thereby playing the role of inserting and improving the anti-theft performance of the door lock.

The oblique tongue lock comprises a lock shell provided with a lock tongue opening, a peach pulling component arranged in the lock shell and a lock tongue component driven by the peach pulling component to enter and exit along the lock tongue opening, wherein the lock tongue component comprises an oblique tongue main body, a tongue groove is formed in the oblique side of the oblique tongue main body, an anti-insertion driving tongue is hinged in the tongue groove in a swinging manner, a stop part matched with the inner side of the lock shell is arranged on the anti-insertion driving tongue, in a door opening state, the stop part swings out of the tongue groove and abuts against the inner side of the lock shell to inhibit the outward acting force of the peach pulling component, so that only the oblique tongue section of the oblique tongue main body extends out of the lock tongue opening, and in a door closing state, the stop part swings into the tongue groove and leaves the inner side of the lock shell to release the outward acting force of the peach pulling component, so that the oblique tongue section and part of the oblique tongue main body extend out of the lock tongue opening.

The aim of the utility model can be also solved by adopting the following technical measures:

as a more specific scheme, the tongue groove is laterally formed in the back side of the inclined tongue main body, one end of the anti-insertion driving tongue is hinged in the tongue groove, a reset spring is further arranged between the inner side of the anti-insertion driving tongue and the bottom of the tongue groove, and in a door opening state, the anti-insertion driving tongue is elastically swung out of the tongue groove through the reset spring, and the stop part is reset to the inner side of the lock case.

As a further scheme, the peach pulling assembly is provided with an elastic guide structure along the sliding direction of the inclined tongue main body, the inclined tongue main body is movably connected to the elastic guide structure, and the inclined tongue section and part of the tongue root section are pushed out of the lock tongue opening under the outward acting force of the elastic guide structure.

As a further scheme, dial the peach subassembly and dial the peach and dial its gliding drive seat around and by the rotation of peach including the spring bolt of rotating connection on the lock shell, the front end of drive seat passes through drive assembly and is connected with the transmission of oblique tongue main part, the rear end of drive seat passes through reset extension spring and lock shell elastic connection.

As a further scheme, the transmission assembly comprises a lock tongue plate and a shifting fork swing arm which are fixedly connected in the lock shell, and a fixed pin shaft is arranged on the lock tongue plate; the shifting fork swing arm is rotationally connected to the fixed pin shaft, the front end of the driving seat can move forwards and push against the resistance end of the shifting fork swing arm, the rear end of the inclined tongue main body is provided with a shifting block, and the power end of the shifting fork swing arm is in rear shifting abutting connection with the shifting block.

As a further scheme, the lock tongue dials the peach including seting up the cylinder in square hole, the symmetry is provided with two and dials the peach convex angle on the cylinder, and two are dialled the peach convex angle and all are set up on the latter semicircle of cylinder to be provided with on the corresponding drive seat and dial reverse stop face and the corotation stop face that the peach convex angle supported.

As a further scheme, the elastic guide structure comprises two guide rods which are connected to the lock tongue plate and are arranged in parallel, and anti-insertion springs which are respectively sleeved on the two guide rods, wherein guide long holes which are in linear sliding fit with the two guide rods and the anti-insertion springs are formed in the inclined tongue main body, and the inclined tongue main body is lower than one end of the anti-insertion springs and generates outward acting force through the anti-insertion springs.

As a further scheme, the inner end of the anti-insertion driving tongue is provided with a shaft part, a shaft groove matched with the shaft part is arranged in the tongue groove, the outer end of the anti-insertion driving tongue is provided with a swinging driving part which enters and exits the tongue groove during swinging, and the stop part is arranged at the middle part or the rear end of the anti-insertion driving tongue.

As a further proposal, the swing-in driving part is provided with a front guiding inclined plane and a rear guiding inclined plane, and the front side of the stop part is provided with a stop end surface.

As a further scheme, the tongue root section is also provided with a tongue anti-falling end face matched with the inner side of the lock shell.

The beneficial effects of the utility model are as follows:

the utility model discloses an anti-inserting door latch lock, which is characterized in that a stop part on an anti-inserting driving tongue is pushed out of a tongue groove under the outward acting force of a reset spring under the door opening state, so that the stop part can be kept against the inner side of a lock shell, the length of a latch main body extending out of a latch opening is limited, in particular, only a latch section with an inclined surface is arranged, in the door closing state, the anti-inserting driving tongue is pressed by a latch box on a door frame, the stop part is swung into the tongue groove to be separated from the inner side of the lock shell, the latch main body extends out of the latch opening under the acting force of an anti-inserting spring, the latch section is replaced by a latch root section in the latch main body at a door seam position, and after a card is inserted, the card is directly pushed against the surface of the latch root section and does not slide any more, so that thinner objects such as the card cannot cut into the inclined surface of the latch root section, thereby playing the role of inserting and improving the anti-theft performance of the door lock.

Drawings

Fig. 1 is a schematic sectional view of the door opening state of the present utility model.

Fig. 2 is a schematic cross-sectional view of the present utility model in an anti-insertion state.

FIG. 3 is a schematic cross-sectional view of a tongue body according to the present utility model.

Fig. 4 is a schematic diagram of a peach pulling assembly according to the present utility model.

Fig. 5 is a schematic diagram of a fully exploded construction of the present utility model.

FIG. 6 is a schematic view of the back structure of the tongue body of the present utility model.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

As shown in fig. 1 to 6, the latch lock for preventing the door from being inserted and opened comprises a lock shell 1 provided with a lock tongue opening 101, a peach pulling assembly 2 arranged in the lock shell 1 and a lock tongue assembly 3 driven by the peach pulling assembly 2 to enter and exit along the lock tongue opening 101, wherein the lock tongue assembly 3 comprises a latch main body 4, the latch main body 4 is provided with a tongue groove 401 at a non-inclined surface side, an anti-insertion driving tongue 5 is hinged in the tongue groove 401 in a swinging manner, a stop part 51 matched with the inner side of the lock shell 1 is arranged on the anti-insertion driving tongue 5, and in a door opening state, the stop part 51 swings out of the tongue groove 401 and abuts against the inner side of the lock shell 1 to inhibit the outward acting force of the peach pulling assembly 2, so that only the latch section 41 of the latch main body 4 extends out of the lock tongue opening 101, and in a door closing state, the stop part 51 swings into the tongue groove 401 and leaves the inner side of the lock shell 1 to release the outward acting force of the peach pulling assembly 2, so that the latch section 41 and part 42 of the latch main body 4 extends out of the lock tongue 101.

When the oblique tongue lock is in a door closing state, a small part of the tongue root section 42 in the oblique tongue main body extends out of the lock tongue opening 101, and the door gap position of the oblique tongue section 41 is replaced by the tongue root section 42, so that the oblique tongue lock plays a role in putting and inserting, and the anti-theft performance of the door lock is improved.

The tongue groove 401 is laterally formed on the back side of the inclined tongue main body 4, one end of the anti-insertion driving tongue 5 is hinged in the tongue groove 401, a reset spring 6 is further arranged between the inner side of the anti-insertion driving tongue 5 and the bottom of the tongue groove 401, and in a door opening state, the anti-insertion driving tongue 5 is elastically swung out of the tongue groove 401 through the reset spring 6, and the stop part 51 is reset to the inner side of the lock case 1; the tongue groove 401 is formed on the back side of the inclined surface 411 of the inclined tongue section 41, so that the insertion preventing driving tongue 5 cannot be operated along the inclined surface 411 when a card or other tool is inserted into the door slot.

In addition, spring grooves 501 and 4011 are formed in the inner side of the anti-insertion driving tongue 5 and the groove bottom of the tongue groove 401, and two end portions of the return spring 6 are limited and placed in the spring grooves 501 and 4011 for positioning and matching.

An elastic guide structure is arranged on the peach pulling assembly 2 along the sliding direction of the inclined tongue main body 4, the inclined tongue main body 4 is movably connected to the elastic guide structure, and the inclined tongue section 41 and part of the tongue root section 42 are pushed out of the lock tongue opening 101 under the outward acting force of the elastic guide structure; the elastic guide structure can support the inclined tongue main body 4 and ensure the straight line movement of the inclined tongue main body, and the inclined tongue main body 4 does not need to drive the peach pulling assembly 2 to move when sliding back and forth.

The peach shifting assembly 2 comprises a lock tongue peach shifting 7 rotatably connected to the lock shell 1 and a driving seat 8 which is driven by the rotation of the lock tongue peach shifting 7 to slide back and forth, the front end of the driving seat 8 is in transmission connection with the inclined tongue main body 4 through a transmission assembly, and the rear end of the driving seat 8 is in elastic connection with the lock shell 1 through a reset tension spring 9; after the spring bolt dials the peach 7 to drive the driving seat 8 to move forwards, the driving seat 8 can be pulled backwards through the reset tension spring 9, so that the driving seat 8 can be reset automatically.

The rear end of the driving seat 8 is provided with two front tension spring hooks 81, one end of the reset tension spring 9 is hung on the front tension spring hooks 81, the tail of the lock shell 1 is provided with two rear tension spring hooks 102, and the other end of the reset tension spring 9 is hung on the rear tension spring hooks 102.

The transmission assembly comprises a lock tongue plate 10 and a shifting fork swing arm 11 which are fixedly connected in a lock shell 1, and a fixed pin shaft 12 is arranged on the lock tongue plate 10; the shifting fork swing arm 11 is rotatably connected to the fixed pin shaft 12, the front end of the driving seat 8 can move forward and push against the resistance end 111 of the shifting fork swing arm 11, the rear end of the inclined tongue main body 4 is provided with a shifting block 13, and the power end 112 of the shifting fork swing arm 11 is in rear shifting abutting joint with the shifting block 13;

the front end of the driving seat 8 is further provided with a pushing block 82, when the driving seat 8 is driven to move forwards, the pushing block 82 pushes the resistance end 111 of the shifting fork swing arm 11 from the back, so that the shifting fork swing arm 11 rotates, and when the shifting fork swing arm rotates, the power end 112 of the shifting fork swing arm 11 swings backwards and toggles the shifting block 13, so that the inclined tongue main body 4 moves backwards and is retracted into the lock shell 1.

The bolt shifting peach 7 comprises a cylinder 71 provided with a square hole 72, two shifting peach convex angles 73 are symmetrically arranged on the cylinder 71, the two shifting peach convex angles 73 are arranged on the rear semicircle of the cylinder 71, and a reverse stop surface 801 and a forward stop surface 802 which are propped against the two shifting peach convex angles 73 are arranged on the corresponding driving seat 8; the structure enables the bolt shifting peach 7 to drive the driving seat 8 to move forwards when rotating forward or reversely.

In addition, an internal thread post 15 for connecting the left lock shell and the right lock shell is further arranged in the lock shell 1, and the internal thread post 15 can be in limit fit with the two peach shifting convex angles 73 to limit the maximum rotation angle of the two peach shifting convex angles 73.

The elastic guide structure comprises two guide rods 1001 connected to the lock tongue plate 10 and arranged in parallel with each other and an anti-insertion spring 14 respectively sleeved on the two guide rods 1001, wherein a guide long hole 402 in linear sliding fit with the two guide rods 1001 and the anti-insertion spring 14 is formed in the inclined tongue main body 4, and the inclined tongue main body 4 is lower than one end of the anti-insertion spring 14 and generates an outward acting force through the anti-insertion spring 14; this structure generates elastic force to the latch main body 4 by the insertion preventing spring 14, and the two guide rods 1001 can prevent the latch main body 4 from rotating axially and play a guiding role when expanding and contracting back and forth.

The inner end of the anti-insertion driving tongue 5 is provided with a shaft part 52, a shaft groove 403 matched with the shaft part 52 is arranged in the tongue groove 401, the outer end of the anti-insertion driving tongue 5 is provided with a swinging driving part 53 which enters and exits the tongue groove 401 during swinging, and the stop part 51 is arranged at the middle part of the anti-insertion driving tongue 5; the swing-in driving part 53 can be matched with a bolt box on a door frame when the door is closed, so that the whole anti-insertion driving bolt 5 is pressed to swing into the bolt groove 401.

The swing-in driving part 53 is provided with a front guiding inclined plane 531 and a rear guiding inclined plane 532, and the front side of the stopping part 51 is provided with a stopping end surface 511; the swing-in driving part 53 does not influence the in-out of the latch main body 4 when extending back and forth along the latch opening 101 through the front guide inclined surface 531 and the rear guide inclined surface 532; while the stop end surface 511 can be abutted against the inner side of the lock case 1.

The tongue root section 42 is also provided with a tongue anti-falling end surface 421 matched with the inner side of the lock shell 1; because the forward movement limit of the latch main body 4 mainly depends on the cooperation of the shifting fork swing arm 11 and the shifting block 13, when the shifting fork swing arm 11 is dislocated, the latch main body 4 is easily pushed out of the latch opening by the whole under the acting force of the anti-insertion spring 14, so that the safety effect is achieved through the latch anti-falling end face 421, and the maximum forward movement range of the latch main body 4 is limited through the latch anti-falling end face 421.

The foregoing is a preferred embodiment of the utility model showing and describing the general principles, features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a prevent oblique tongue lock of inserting door, including set up lock shell (1) of spring bolt mouth (101), set up peach subassembly (2) and by set up peach subassembly (2) drive along spring bolt subassembly (3) of spring bolt mouth (101) business turn over in lock shell (1), its characterized in that: the lock tongue assembly (3) comprises a lock tongue main body (4), a tongue groove (401) is formed in the non-inclined side of the lock tongue main body (4), an anti-insertion driving tongue (5) is hinged in the tongue groove (401), a stop part (51) matched with the inner side of the lock shell (1) is arranged on the anti-insertion driving tongue (5), the stop part (51) swings out of the tongue groove (401) and abuts against the inner side of the lock shell (1) to inhibit the outward acting force of the dial peach assembly (2), so that only the inclined tongue section (41) of the lock tongue main body (4) stretches out of the lock tongue opening (101), and in the door closing state, the stop part (51) swings into the tongue groove (401) and leaves the inner side of the lock shell (1) to release the outward acting force of the dial peach assembly (2), so that the inclined tongue section (41) and part tongue root section (42) in the lock tongue main body (4) stretch out of the lock tongue opening (101).

2. The latch lock for an anti-insertion door of claim 1, wherein: the anti-insertion driving tongue (5) is hinged in the tongue groove (401), a reset spring (6) is further arranged between the inner side of the anti-insertion driving tongue (5) and the groove bottom of the tongue groove (401), and in the door opening state, the anti-insertion driving tongue (5) swings out of the tongue groove (401) through the elasticity of the reset spring (6) and enables the stop part (51) to reset to the inner side of the lock case (1).

3. The latch lock for an anti-insertion door of claim 1, wherein: the peach pulling assembly (2) is provided with an elastic guide structure along the sliding direction of the inclined tongue main body (4), the inclined tongue main body (4) is movably connected to the elastic guide structure, and the inclined tongue section (41) and part of the tongue root section (42) are pushed out of the lock tongue opening (101) under the outward acting force of the elastic guide structure.

4. A latch lock for an anti-insertion door as defined in claim 3, wherein: the peach pulling assembly (2) comprises a bolt pulling peach (7) which is rotationally connected to a lock shell (1) and a driving seat (8) which is driven by the rotation of the bolt pulling peach (7) to slide back and forth, the front end of the driving seat (8) is in transmission connection with an inclined bolt main body (4) through a transmission assembly, and the rear end of the driving seat (8) is in elastic connection with the lock shell (1) through a reset tension spring (9).

5. The latch lock for an anti-insertion door of claim 4, wherein: the transmission assembly comprises a lock tongue plate (10) and a shifting fork swing arm (11) which are fixedly connected in the lock shell (1), and a fixed pin shaft (12) is arranged on the lock tongue plate (10); the shifting fork swing arm (11) is rotationally connected to the fixed pin shaft (12), the front end of the driving seat (8) can move forwards and push the shifting fork swing arm (11) on the resistance end (111), the rear end of the inclined tongue main body (4) is provided with a shifting block (13), and the power end (112) of the shifting fork swing arm (11) is in rear shifting abutting connection with the shifting block (13).

6. The latch lock for an anti-insertion door of claim 4, wherein: the spring bolt dials peach (7) including seting up cylinder (71) of square hole (72), the symmetry is provided with two and dials peach convex angle (73) on cylinder (71), and two are dialled peach convex angle (73) and are all set up on the back semicircle of cylinder (71) to be provided with on corresponding drive seat (8) and dial reverse stop face (801) and forward rotation stop face (802) that peach convex angle (73) supported.

7. The latch lock for an anti-insertion door of claim 5, wherein: the elastic guide structure comprises two guide rods (1001) which are connected to the lock tongue plate (10) and are arranged in parallel, and anti-insertion springs (14) which are respectively sleeved on the two guide rods (1001), wherein guide long holes (402) which are in linear sliding fit with the two guide rods (1001) and the anti-insertion springs (14) are formed in the inclined tongue main body (4), and the inclined tongue main body (4) is lower than one end of the anti-insertion springs (14) and generates an outward acting force through the anti-insertion springs (14).

8. The latch lock for an anti-insertion door of claim 1, wherein: the inner end of the anti-insertion driving tongue (5) is provided with a shaft part (52), a shaft groove (403) matched with the shaft part (52) is arranged in the tongue groove (401), the outer end of the anti-insertion driving tongue (5) is provided with a swinging driving part (53) which enters and exits the tongue groove (401) during swinging, and the stop part (51) is arranged at the middle part or the back end of the anti-insertion driving tongue (5).

9. The latch lock for an anti-insertion door of claim 8, wherein: the swing-in driving part (53) is provided with a front guide inclined plane (531) and a rear guide inclined plane (532), and the front side of the stop part (51) is provided with a stop end surface (511).

10. The latch lock for an anti-insertion door of claim 1, wherein: the tongue root section (42) is also provided with a lock tongue anti-falling end surface (421) matched with the inner side of the lock shell (1).