CN206053601U - Anti-theft door lock transmission structure - Google Patents

Abstract

The utility model discloses a transmission structure of a security door lock, which comprises a door body, an upper rod, a lower rod, an upper sliding plate, an upper switch plate, a main door valve plate, a clutch control piece, a left-side spring bolt, a lower sliding plate, a lower switch plate, an unlocking action piece and a linkage lever; the main door valve plate is connected with the upper sliding plate in a stacked mode along the front-back direction through a clutch; the unlocking action piece comprises a circular tenon driven by external force to rotate and a pull rod connected to the peripheral side of the circular tenon, and the circular tenon is provided with a special-shaped part coaxial with the circular tenon; the lower switch board is provided with a special-shaped linkage groove and a stop tenon; the linkage lever is provided with a fulcrum, a first rotating arm and a second rotating arm which are positioned on the upper side and the lower side of the fulcrum; the locking among some parts is released through the unlocking action piece, the spring is reset to act on the lower sliding plate, and the linkage lever is linked with the main door valve plate to push the valve plate to the right to realize unlocking; the transmission structure is ingenious and reasonable in design, stable in working performance of the door lock and quick in unlocking action are guaranteed, and meanwhile the door lock has good safety.

Description

Anti-theft door lock transmission structure

technical field

The utility model relates to the technology in the field of locks, in particular to an anti-theft door lock transmission structure.

Background technique

At present, cabinets such as safes are often used by people to store some important documents, certificates and valuables, etc. There are generally some defects. Some box door locks have a more complex structure and are more difficult to produce, process and assemble parts, resulting in higher costs. Moreover, usually such box door locks occupy a large volume, which is difficult to meet the requirements of miniaturized safes; while some The structure of the box door lock is relatively simple, but it reduces the safety performance.

Therefore, it is urgent to work out a new technical solution to solve the above problems.

Utility model content

In view of this, the utility model aims at the deficiencies in the prior art, and its main purpose is to provide an anti-theft door lock transmission structure. Very good security.

An anti-theft door lock transmission structure, including a door body, an upper lever, a lower lever, an upper slide plate, an upper switch plate, a main door valve plate, a clutch, a clutch control part, a left dead bolt, a lower plate, a lower switch plate, and an unlocking action components and linkage levers;

Wherein, the aforementioned door body has a right end that is pivotally connected with the door frame and a left end that can be opened and closed with the door frame. The left end is provided with a through slot for the telescopic passage of the aforementioned left bolt; A first spring is sheathed, the right end of the first spring is connected to the upper rod, the left end of the first spring is movably arranged relative to the upper rod and abuts against the upper slide plate; the aforementioned lower rod is sleeved with a third spring ( 19), the right end of the third spring is connected to the lower rod, and the left end of the third spring is movable relative to the lower rod and abuts against the lower plate;

The above-mentioned main door valve plate and the upper slide plate are stacked and connected in the forward and backward direction through the clutch. The aforementioned clutch control member acts on the clutch to lock or release the connection relationship between the main door valve plate and the upper slide plate. The left end of the main door valve plate is connected to the above-mentioned left Side lock bolt; the front end of the aforementioned upper rod moves through the upper slide plate, and the left end of the upper rod rests on the upper switch plate. The aforementioned main door valve plate is provided with an L-shaped groove. The L-shaped groove has a horizontal groove extending left and right and is formed on a The hook groove at the right end of the groove, the upper switch plate has an upper tenon protruding toward the L-shaped groove, and the upper tenon is located in the horizontal groove or the hook groove with the push of the upper rod;

The above-mentioned unlocking action piece includes a circular tenon driven by an external force and a pull rod connected to the periphery of the circular tenon, and the circular tenon is provided with a coaxial special-shaped part;

The aforementioned lower switch plate has a special-shaped linkage groove and a stop tenon, and the aforementioned lower plate has a lower tenon protruding toward the stop tenon, and the lower tenon extends into the stop tenon; the aforementioned special-shaped part acts on the special-shaped linkage groove, and the aforementioned The clutch control part is integrally set or connected with a push part protruding toward the clutch; with the rotation of the circular tenon, its special-shaped part acts as a special-shaped linkage groove, and the lower switch plate is shifted downward, releasing the restriction on the lower tenon , the aforementioned pull rod acts on the clutch control part to move the linkage clutch control part in the up and down direction, its resisting part withstands the clutch backward, releases the lock of the clutch to the main door valve plate, the upper sliding plate is separated from the main door valve plate, the main door valve plate and the upper sliding plate Can be set relative to each other;

The aforementioned linkage lever has a fulcrum, a first rotating arm and a second rotating arm located on the upper and lower sides of the fulcrum, the free end of the second rotating arm is linked by the lower plate, and the free end of the first rotating arm is linked to the aforementioned main door valve plate;

After the aforementioned lower plate is not limited by the lower switch plate, under the return force of the third spring, the lower plate moves to the left, and the free end of the second rotating arm is also shifted to the left due to the linkage of the lower plate. A rotating arm then shifts to the right and rotates and at the same time moves the valve plate of the main door to the right, and the aforementioned left dead bolt then moves to the right to realize unlocking.

As a preferred solution, the right end of the door body has a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are arranged at intervals along the left and right directions in turn, the first limiting plate, Corresponding through holes are provided on the second limiting plate for the aforementioned upper rod and lower rod to pass through in a left and right movable manner;

The aforementioned upper rod is also sleeved with a second spring, and the second spring and the aforementioned first spring are arranged on the upper rod in a spaced manner; the aforementioned first spring is located on the left side of the second limiting plate, and the second spring is located on the first limiting plate. Between the position plate and the second limit plate, the right end of the second spring is connected to the upper rod, and the left end of the second spring abuts against the second limit plate;

A fourth spring is also sheathed on the aforementioned lower rod, and the fourth spring and the aforementioned third spring are sleeved on the aforementioned lower rod; the third spring is located on the left side of the second limiting plate, and the fourth spring is located on the second Between the first limiting plate and the second limiting plate, the right end of the fourth spring is connected to the upper rod, and the left end of the fourth spring abuts against the second limiting plate.

As a preferred solution, the left end of the upper rod is screwed with an adjustable nut, and the left end of the adjustable nut abuts against the aforementioned upper switch plate.

As a preferred solution, it also includes an upper lock tongue, a lower lock tongue, an upper push plate, and a lower push plate, the upper push plate is connected or linked with the upper lock tongue, and the lower push plate is connected with or linked with the lower lock tongue The upper push plate and the lower push plate are respectively provided with an upper inclined groove and a lower inclined groove. Downward and downward sloped grooves.

As a preferred solution, the clutch includes a rear top plate, a return spring and a movable locking column; the aforementioned upper slide plate and the main door valve plate are respectively provided with a first limit hole and a second limit hole along the front and rear directions; The two ends of the return spring are connected between the rear top plate and the rear end of the movable locking column, and the rear section of the movable locking column is protruded with a convex part to prevent it from going out of the first limiting hole forward; When the door valve plates are locked with each other, the front section of the movable locking column extends forward into the first limit hole and the second limit hole in turn; when the front end of the movable locking column is pushed back by the push part of the linkage clutch control part , the movable locking post deviates from the second limit hole backwards, unlocks the locking of the main door valve plate, and the upper slide plate breaks away from the main door valve plate, and the aforementioned back-moving spring is in a compressed state.

As a preferred solution, the clutch control member has a base plate portion extending in the up-down direction, and a folded plate portion extending in the front-rear direction is bent on the base plate portion, and a first linkage hole is opened on the folded plate portion, and the aforementioned pull rod It protrudes into the first linkage hole; an arched elastic plate is installed on the side of the base plate facing the clutch, and the arched elastic plate has an arch protruding toward the clutch, and the arch is the aforementioned resisting portion.

As a preferred solution, the lower switch plate is located on the front side of the lower slide plate, the main door valve plate is located on the front side of the lower slide plate, the lower switch plate is adjacent to the main door valve plate in the vertical direction, and the upper side of the lower switch plate The part is bent and extended forward to form a first auxiliary positioning plate, and the first auxiliary positioning plate extends into the front side of the main door valve plate; and, the lower part of the lower switch plate is bent and extended to form a second auxiliary positioning plate , the second auxiliary positioning plate stretches into the lower side of the lower slide.

As a preferred solution, the right end of the upper slide plate is bent backward to have an upper slide plate pushed portion, and the left end of the first spring on the aforementioned upper rod is against the pushed portion of the upper slide plate; the right end of the upper switch plate is bent backward The pushed portion of the upper switch plate is folded, and the left end of the upper rod abuts against the pushed portion of the upper switch plate;

As a preferred solution, the upper push plate and the lower push plate are respectively provided with travel limit grooves, and the aforementioned door body is provided with corresponding limit shafts protruding backward, and the limit shafts extend into the upper push plate and the lower push plate. Inside the travel limit groove of the push plate.

As a preferred solution, the linkage lever has a half-moon structure; the upper switch plate has an L-shaped structure.

In order to achieve the above object, the utility model adopts the following technical solutions:

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above-mentioned technical scheme that when the door is closed, the upper sliding plate is pushed by the spring to move the main door valve plate to the left to realize locking on the left side. ;When opening the door, the lock between some parts is released through the unlocking action piece, and the spring reset is used to act on the lower plate, and then the linkage lever is linked to the main door valve plate to move to the right to realize unlocking; the transmission structure design is ingenious and reasonable, ensuring the working performance of the door lock It is stable and has good security at the same time.

In order to more clearly illustrate the structural features, technical means and the specific purpose and functions achieved by the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a structural diagram one (in a closed state) of an embodiment of the utility model;

Fig. 2 is the structure diagram two of the embodiment of the present utility model (is in the state after opening the door);

Fig. 3 is the back view of the embodiment of the utility model;

Fig. 4 is the perspective view of the embodiment of the utility model;

Fig. 5 is the first sectional view of the embodiment of the utility model;

Fig. 6 is a partially enlarged structural diagram in Fig. 4;

Fig. 7 is the second sectional view of the embodiment of the present utility model;

Fig. 8 is the third sectional view of the embodiment of the present utility model;

Fig. 9 is a partial enlarged structural view at A in Fig. 8;

Fig. 10 is a diagram for displaying the clutch control part and the clutch linkage relationship;

Fig. 11 is a schematic diagram of the assembly structure of the door body and the main door valve plate in this embodiment;

Fig. 12 is the back view of main gate valve plate in the present embodiment;

Fig. 13 is a structural diagram of the upper push plate and the lower push plate in this embodiment;

Fig. 14 is a structural diagram of the lower switch plate, the clutch control part and the unlocking action part in this embodiment;

Fig. 15 is a structural diagram of the upper slide plate in this embodiment;

Fig. 16 is a structural diagram of the upper switch in this embodiment;

Fig. 17 is a structural diagram of the sliding plate in this embodiment;

Fig. 18 is a structural diagram of the upper pole in this embodiment.

Explanation of the accompanying drawings:

1. Door body 2. Upper rod

3. Lower pole 4. Upper skateboard

5. Upper switch plate 6. Main door valve plate

7. Clutch 8. Clutch control

9. Left lock bolt 10. Lower plate

11. Lower switch plate 12. Round tenon

13. Pull rod 14. Linkage lever

15. The first limiting plate 16. The second limiting plate

17. First spring 18. Second spring

19. The third spring 20. The fourth spring

21. L-shaped groove 22. Horizontal groove

23. Hook groove 24. Upper tenon

25. Special-shaped linkage groove 26. Stop tenon

27. Lower tenon 28. Resisting part

29. First rotating arm 30. Second rotating arm

31. Adjustable nut 32. Upper bolt

33. Bottom bolt 34. Upper push plate

35. Lower push plate 36. Upper inclined groove

37. Lower oblique groove 38. Linkage shaft

39. Rear top plate 40. Return spring

41. Movable locking column 42. Convex part

43. The first limit hole 44. The second limit hole

45. Substrate part 46. Folded plate part

47. First linkage hole 48. Arch elastic plate

49. The first auxiliary positioning plate 50. The second auxiliary positioning plate

51. The pushed part of the upper slide plate 52. The pushed part of the upper switch plate

121. Alien Department.

detailed description

Please refer to Fig. 1 to Fig. 18, which shows the specific structure of the embodiment of the present invention, here, take the safe door lock as an example for illustration, of course, this kind of door lock transmission structure is not limited to the application in the insurance It can also be used on other products such as vending machines.

First of all, it should be noted that in the following descriptions, some terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the technical solution of the utility model and simplifying the description, rather than indicating or implying The devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the invention.

The transmission structure of the anti-theft door lock includes a door body (1), an upper rod (2), a lower rod (3), an upper slide plate (4), an upper switch plate (5), a main door valve plate (6), and a clutch (7) , the clutch control part (8), the left deadbolt (9), the lower plate (10), the lower switch plate (11), the unlocking action part and the linkage lever (14).

Wherein, the aforementioned door body (1) has a right end that is pivotally connected with the door frame and a left end that can be opened and closed with the door frame, and the left end is provided with a passage for the aforementioned left lock tongue (9) to stretch through. Groove; the right end of the door body (1) has a first limiting plate (15) and a second limiting plate (16), and the first limiting plate (15) and the second limiting plate (16) are arranged along the left and right directions in turn. Arranged at intervals, the first limiting plate (15) and the second limiting plate (16) are provided with corresponding through holes for the aforementioned upper rod (2) and lower rod (3) to move through left and right.

The first spring (17) and the second spring (18) are sleeved on the upper rod (2) at a distance; the first spring (17) is located on the left side of the second limit plate (16), and the first spring ( The right end of 17) is connected to the upper rod (2), and the left end of the first spring (17) is movable relative to the upper rod (2) and abuts against the upper slide plate (4); the second spring (18) is located Between the first limiting plate (15) and the second limiting plate (16), the right end of the second spring (18) is connected to the upper rod (2), and the left end of the second spring (18) abuts against on the second limiting plate (16).

A third spring (19) and a fourth spring (20) are sleeved on the upper rod (3) at a distance; the third spring (19) is located on the left side of the second limiting plate (16), and the third spring ( The right end of 19) is connected to the lower rod (3), and the left end of the third spring (19) is movable relative to the lower rod (3) and abuts against the lower plate (10); the fourth spring (20) is located Between the first limiting plate (15) and the second limiting plate (16), the right end of the fourth spring (20) is connected to the upper rod (2), and the left end of the fourth spring (20) abuts against on the second limiting plate (16).

The left end of the aforementioned main door valve plate (6) is connected to the aforementioned left deadbolt (9), and the main door valve plate (6) and the upper slide plate (4) are stacked and connected in the forward and backward direction through the clutch (7). (8) Act on the clutch (7) to lock or release the connection relationship between the main gate valve plate (6) and the upper slide plate (4);

In this embodiment, as shown in Figures 7 to 10, the clutch (7) includes a rear top plate (39), a return spring (40) and a movable locking column (41); the aforementioned upper slide plate (4), The main door valve plate (6) is respectively provided with a first limit hole (43) and a second limit hole (44) along the front and rear directions; the two ends of the return spring (40) are connected to the rear top plate (39) and the movable lock Between the rear ends of the stop posts (41), there is a protruding part (42) protruding from the rear section of the movable lock post (41) to prevent it from coming out of the first limiting hole (43) forward;

As shown in Fig. 8, Fig. 9 and Fig. 14, the clutch control member (8) has a base plate portion (45) extending in the up-and-down direction, and a folded plate portion extending in the front-rear direction is formed by bending the base portion (45) (46), the flap part (46) is provided with a first linkage hole (47), and the aforementioned pull rod (13) extends into the first linkage hole (47); the base plate part (45) faces toward the clutch (7 ) is installed with an arched elastic plate (48), the arched elastic plate (48) has an arch protruding toward the clutch (7), and the arch is the following resisting portion (28);

When the upper sliding plate (4) and the main door valve plate (6) are locked with each other, the front section of the movable locking column (41) extends forward and sequentially into the first limiting hole (43) and the second limiting hole (44); When the front end of the movable locking column (41) is pushed back by the pushing part (28) of the linkage clutch control part (8), the movable locking column (41) will escape from the second limiting hole (44) backward, Unlock the main door valve plate (6), the upper slide plate (4) is separated from the main door valve plate (6), and the aforementioned return spring (40) is in a compressed state.

The front end of the aforementioned upper rod (2) moves through the upper slide plate (4), and the left end of the upper rod (2) is against the upper switch plate (5). Here, the left end of the upper rod (2) is screwed with an adjustable Nut (31), through the left end of the adjustable nut (31) against the aforementioned upper switch plate (5), the setting of the adjustable nut (31) allows the length of the upper rod (2) to be flexibly adjusted to facilitate Ensure the accuracy of assembly and subsequent linkage actions (see Figure 3, Figure 4, and Figure 6 for details); the aforementioned main door valve plate (6) is provided with an L-shaped groove (21), and the L-shaped groove (21) has The horizontal groove (22) extending left and right and the hook groove (23) formed at the right end of the horizontal groove (22), the upper switch plate (5) has an upper tenon (24) protruding toward the L-shaped groove (21), The upper tenon (24) is located in the horizontal groove (22) or hook groove (23) with the push of the upper rod (2); here, as shown in Figure 4, Figure 15 and Figure 16, the upper switch plate ( 5) In an L-shaped structure, the right end of the upper slide (4) is bent backward to form an upper slide push portion (51), and the left end of the first spring (17) on the aforementioned upper rod (2) is against the upper slide push. On the push part (51); the right end of the upper switch plate (5) is bent backward to form the pushed part (52) of the upper switch plate, and the left end of the aforementioned upper rod (2) is against the pushed part (52) of the upper switch plate and, the above-mentioned upper tenon (24) is formed by bending and extending forward on the upper side of the left section of the upper switch plate (5).

The above-mentioned unlocking action piece includes a circular tenon (12) driven by an external force and a pull rod (13) connected to the peripheral side of the circular tenon (12). The circular tenon (12) is provided with a Coaxial special-shaped part (121); the aforementioned lower switch plate (11) has a special-shaped linkage groove (25) and a stop tenon (26), and the aforementioned lower plate (10) protrudes toward the stop tenon (26). The tenon (27), the lower tenon (27) extends into the stop tenon (26); the above-mentioned special-shaped part (121) acts on the special-shaped linkage groove (25), and the above-mentioned clutch control part (8) is integrated or connected There is a resisting part (28) protruding toward the clutch (7); with the rotation of the circular tenon (12), its special-shaped part (121) acts on the special-shaped linkage groove (25), and the lower switch plate (11) is downward Offset, release the restriction on the lower tenon (27), the aforementioned pull rod (13) acts on the clutch control piece (8) to move the linkage clutch control piece (8) in the up and down direction, and its resisting part (28) pushes backward Hold the clutch (7), unlock the clutch (7) to the main gate valve plate (6), the upper slide plate (4) is separated from the main gate valve plate (6), and the main gate valve plate (6) and the upper slide plate (4) can move relative to each other format settings;

In this embodiment, as shown in Figure 4, Figure 14 and Figure 17, the lower switch plate (11) is located on the front side of the aforementioned lower plate (10), and the main door valve plate (6) is located in front of the lower plate (10). side, the lower switch plate (11) is adjacent to the main door valve plate (6) along the up and down direction, and the upper part of the lower switch plate (11) is bent forward to form a first auxiliary positioning plate (49) , the first auxiliary positioning plate (49) extends into the front side of the main door valve plate (6); and, the lower part of the lower switch plate (11) is bent and extended to form a second auxiliary positioning plate (50) , the second auxiliary positioning plate (50) extends into the underside of the lower plate (10).

As shown in Figure 5, the linkage lever (14) has a half-moon structure. The linkage lever (14) has a fulcrum and a first rotating arm (29) and a second rotating arm (30) located on the upper and lower sides of the fulcrum. The free end of the second rotating arm (30) is linked by the lower plate (10), and the free end of the first rotating arm (29) is linked with the aforementioned main door valve plate (6);

After the aforementioned lower plate (10) is not limited by the lower switch plate (11), under the reset force of the third spring (19), the lower plate (10) moves to the left, and the second rotating arm (30) of the lower plate (10) moves to the left. The free end is also shifted to the left by the linkage of the lower plate (10), and the aforementioned first rotating arm (29) is shifted to the right and rotated to the right at the same time as the main door valve plate (6) is moved to the right. The aforementioned left lock tongue (9) ) and turn right to unlock.

The above description is only for the left deadbolt (9). In fact, it can also be set by setting the upper deadbolt (32), the lower deadbolt (33), the upper push plate (34), and the lower push plate (35) and other structures to realize synchronous locking and unlocking of the upper and lower sides; wherein, the upper push plate (34) is connected or linked with the upper lock tongue (32), and the lower push plate (35) is connected or linked with the lower lock tongue ( 33); the upper push plate (34) and the lower push plate (35) are respectively provided with an upper inclined groove (36) and a lower inclined groove (37), and the aforementioned main door valve plate (6) faces the upper push plate ( 34), the lower push plate (35) is protruded with a linkage shaft (38), and the linkage shaft (38) passes through the upper inclined groove (36) and the lower inclined groove (37); and, the upper push plate (34) and the lower push plate (35) are respectively provided with stroke limit grooves, and the aforementioned door body is provided with corresponding limit shafts protruding backward, and the limit shafts extend into the upper push plate (34) and the lower push plate. (35) travel limit groove.

Next, briefly introduce the transmission process and principle of the closing and opening actions of the aforementioned door lock:

(1) When closing the door, the upper rod (2) and the lower rod (3) at the right end of the door body (1) are pushed forward by the pressure of the door frame, so that the second spring (18) and the fourth spring (20) are both in the Under pressure, the length of the upper rod (2) can be adjusted through the adjustable nut (31) adapted to the front end of the upper rod (2); as the upper rod (2) and the lower rod (3) move forward, the first The spring (17) and the second spring (18) are also under pressure. When they reach a certain position, the left end of the adjustable nut (31) on the front end of the upper rod (2) is pushed against the upper switch plate 5. At the same time, the upper tenon (24) Rotate into the L-shaped groove (21) on the main door valve plate (6);

At this time, the first spring (17) exerts force on the upward sliding plate (4), and the upper sliding plate (4) drives the main door valve plate (6) to slide to the left until it is locked. During this process, the clutch (7) is still stuck downward In the second limit hole (44) on the main door valve plate (9); the linkage shaft (38) of the main door valve plate (6) extends into the corresponding upper inclined groove of the upper push plate (34) and the lower push plate (35) (36), in the lower inclined groove (37), when the main door valve plate (6) slides forward, at the same time, the upper push plate (34) is linked to move upward and the lower push plate (35) moves downward to realize the upper , the lower side is locked;

(2) When opening the door, the above-mentioned unlocking action parts can be manually driven by a key, or can be automatically driven by a motor, etc. The automatic drive can be opened by using a mobile terminal such as a mobile phone through a short-block communication method, or by entering a password mode, etc.; drive the aforementioned unlocking action piece to rotate, and its circular tenon (12) rotates, driving the pull rod (13) to move the clutch control piece (8) down, and the clutch (7) to break away from the main door valve plate (6), thus, up The sliding plate (4) is separated from the main door valve plate (6); at the same time, when the aforementioned circular tenon (12) rotates, the special-shaped part (121) of the circular tenon (12) acts on the lower switch plate (11), so that The lower switch plate (11) moves downward to release the restriction of the lower switch plate (11) on the lower tenon (27) of the lower plate (10);

Under the reset force of the aforementioned third spring (19), the lower plate (10) exerts force forward, and the lower plate (10) pushes the second rotating arm (30) of the linkage lever (14) to the left, using the principle of leverage , the first rotating arm end (29) of the linkage lever (14) acts on the main door valve plate (6) to the right, so as to drive the main door valve plate (6) to the right and pull the left lock tongue (9) to retract to the door opening position; Simultaneously, under the action of the linkage shaft (38) of the main door valve plate (6), the upper push plate (34) moves downward and the lower push plate (35) moves upward to realize the upper and lower side unlocking.

In summary, when the door is closed, the upper sliding plate is pushed by the spring to move the main door valve plate to the left to realize the locking on the left side; when the door is opened, the locking of some parts is released through the unlocking action piece, and the spring returns to act on the lower plate. Then the linkage lever moves the main door valve plate to the right to realize the unlocking; the transmission structure design is ingenious and reasonable, which ensures the stable working performance of the door lock and the fast unlocking action, and has good safety at the same time.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the utility model.

Claims (10)

1. An anti-theft door lock transmission structure, characterized in that it includes a door body (1), an upper rod (2), a lower rod (3), an upper slide plate (4), an upper switch plate (5), and a main door valve plate (6), clutch (7), clutch control part (8), left deadbolt (9), lower plate (10), lower switch plate (11), unlocking action part and linkage lever (14); Wherein, the aforementioned door body (1) has a right end that is pivotally connected with the door frame and a left end that can be opened and closed with the door frame, and the left end is provided with a passage for the aforementioned left lock tongue (9) to stretch through. slot; the aforementioned upper rod (2) is sheathed with a first spring (17), the right end of the first spring (17) is connected to the upper rod (2), and the left end of the first spring (17) is opposite to the upper rod ( 2) It is movable and abuts against the upper slide plate (4); the aforementioned lower rod (3) is covered with a third spring (19), and the right end of the third spring (19) is connected to the lower rod (3) , the left end of the third spring (19) is movable relative to the lower rod (3) and abuts against the lower plate (10); The above-mentioned main door valve plate (6) and the upper slide plate (4) are stacked and connected in the forward and backward direction through the clutch (7), and the aforementioned clutch control member (8) acts on the clutch (7) to lock or release the main door valve plate (6) The connection relationship with the upper slide plate (4), the left end of the main door valve plate (6) is connected to the aforementioned left lock tongue (9); (2) The left end rests on the upper switch plate (5), and an L-shaped groove (21) is opened on the aforementioned main door valve plate (6). The L-shaped groove (21) has horizontal grooves (22) extending left and right and formed on The hook groove (23) at the right end of the horizontal groove (22) has an upper tenon (24) protruding toward the L-shaped groove (21) on the upper switch plate (5), and the upper tenon (24) follows the upper rod ( 2) The thrust is located in the horizontal groove (22) or the hook groove (23); The above-mentioned unlocking action piece includes a circular tenon (12) driven by an external force and a pull rod (13) connected to the peripheral side of the circular tenon (12). The circular tenon (12) is provided with a Coaxial shaped part (121); The above-mentioned lower switch plate (11) has a special-shaped linkage groove (25) and a stop tenon (26). The tenon (27) extends into the stop tenon (26); the above-mentioned special-shaped part (121) acts on the special-shaped linkage groove (25), and the above-mentioned clutch control part (8) is integrally provided or connected with a protruding part facing the clutch (7). Resisting part (28); with the rotation of the circular tenon (12), its special-shaped part (121) acts on the special-shaped linkage groove (25), and the lower switch plate (11) is shifted downward, releasing the lower tenon ( 27), the aforementioned pull rod (13) acts on the clutch control piece (8) to move the linkage clutch control piece (8) in the up and down direction. 7) For the locking of the main door valve plate (6), the upper sliding plate (4) is separated from the main door valve plate (6), and the main door valve plate (6) and the upper sliding plate (4) can be moved relative to each other; The aforementioned linkage lever (14) has a fulcrum, a first rotating arm (29) and a second rotating arm (30) located on the upper and lower sides of the fulcrum, and the free end of the second rotating arm (30) is linked by the lower plate (10). , the free end of the first rotating arm (29) is linked to the aforementioned main gate valve plate (6); After the aforementioned lower plate (10) is not limited by the lower switch plate (11), under the reset force of the third spring (19), the lower plate (10) moves to the left, and the second rotating arm (30) of the lower plate (10) moves to the left. The free end is also shifted to the left by the linkage of the lower plate (10), and the aforementioned first rotating arm (29) is shifted to the right and rotated to the right at the same time as the main door valve plate (6) is moved to the right. The aforementioned left lock tongue (9) ) and turn right to unlock. 2. The anti-theft door lock transmission structure according to claim 1, characterized in that: the right end of the door body (1) has a first limiting plate (15), a second limiting plate (16), the first limiting plate The spacer plate (15) and the second spacer plate (16) are sequentially arranged along the left and right directions, and the first spacer plate (15) and the second spacer plate (16) are provided with corresponding through holes for the aforementioned upper rod (2), the lower rod (3) can move through left and right; The aforementioned upper rod (2) is also sleeved with a second spring (18), and the second spring (18) and the aforementioned first spring (17) are arranged on the upper rod (2) in a spaced manner; the aforementioned first spring (17) ) is located on the left side of the second limiting plate (16), the second spring (18) is located between the first limiting plate (15) and the second limiting plate (16), and the right end of the second spring (18) Connected to the upper rod (2), the left end of the second spring (18) abuts against the second limiting plate (16); The aforementioned lower rod (3) is also sleeved with a fourth spring (20), and the fourth spring (20) and the aforementioned third spring (19) are sleeved on the aforementioned lower rod (3) in a spaced manner; the third spring (19) is located on the left side of the second limiting plate (16), the fourth spring (20) is located between the first limiting plate (15) and the second limiting plate (16), the fourth spring (20) The right end of the fourth spring (20) is connected to the upper rod (2), and the left end of the fourth spring (20) abuts against the second limiting plate (16). 3. The anti-theft door lock transmission structure according to claim 1 or 2, characterized in that: the left end of the upper rod (2) is screwed with an adjustable nut (31), and the left end of the adjustable nut (31) Resist against the aforementioned upper switch plate (5). 4. The anti-theft door lock transmission structure according to claim 1, characterized in that it also includes an upper lock tongue (32), a lower lock tongue (33), an upper push plate (34), a lower push plate (35 ), the upper push plate (34) is connected or linked with the upper lock tongue (32), the lower push plate (35) is connected or linked with the lower lock tongue (33); the upper push plate (34), the lower push plate ( 35) are respectively provided with an upper inclined groove (36) and a lower inclined groove (37), and the aforementioned main door valve plate (6) is provided with a linkage shaft ( 38), the linkage shaft (38) passes through the upper oblique groove (36) and the lower oblique groove (37) in turn. 5. The anti-theft door lock transmission structure according to claim 1, characterized in that: the clutch (7) includes a rear top plate (39), a return spring (40) and a movable locking column (41); the aforementioned upper slide plate (4), the main door valve plate (6) is respectively provided with a first limit hole (43) and a second limit hole (44) along the front and back directions; the two ends of the return spring (40) are connected to the rear top plate (39 ) and the rear end of the movable locking column (41), the rear section of the movable locking column (41) is protruded with a protrusion (42) to prevent it from protruding forward from the first limiting hole (43); When the upper sliding plate (4) and the main door valve plate (6) are locked with each other, the front section of the movable locking column (41) extends forward and sequentially into the first limiting hole (43) and the second limiting hole (44); When the front end of the movable locking column (41) is pushed back by the pushing part (28) of the linkage clutch control part (8), the movable locking column (41) will escape from the second limiting hole (44) backward, Unlock the main door valve plate (6), the upper slide plate (4) is separated from the main door valve plate (6), and the aforementioned return spring (40) is in a compressed state. 6. The anti-theft door lock transmission structure according to claim 1, characterized in that: the clutch control member (8) has a base plate (45) extending in the vertical direction, and the base plate (45) is bent to form a The folded plate part (46) extending in the front and rear direction has a first linkage hole (47) on the folded plate part (46), and the aforementioned pull rod (13) extends into the first linkage hole (47); the base plate part ( 45) is equipped with an arched elastic plate (48) towards the side where the clutch (7) is located. The arched elastic plate (48) has an arch protruding towards the clutch (7). The arch is the aforementioned resisting part ( 28). 7. The anti-theft door lock transmission structure according to claim 1, characterized in that: the lower switch plate (11) is located on the front side of the lower plate (10), and the main door valve plate (6) is located on the lower plate (10). ), the lower switch plate (11) is adjacent to the main door valve plate (6) along the up and down direction, and the upper part of the lower switch plate (11) is bent forward to form a first auxiliary positioning plate ( 49), the first auxiliary positioning plate (49) extends into the front side of the main door valve plate (6); and, the lower part of the lower switch plate (11) is bent and extended to form a second auxiliary positioning plate ( 50), the second auxiliary positioning plate (50) extends into the lower side of the lower plate (10). 8. The anti-theft door lock transmission structure according to claim 1, characterized in that: the right end of the upper slide (4) is bent backwards to form an upper slide pushed part (51), and the first pusher on the upper rod (2) The left end of a spring (17) abuts against the pushed part (51) of the upper slide plate; abut against the pushed part (52) of the upper switch plate; and, the aforementioned upper tenon (24) is formed by bending and extending forward on the upper side of the left section of the upper switch plate (5). 9. The anti-theft door lock transmission structure according to claim 4, characterized in that: the upper push plate (34) and the lower push plate (35) are respectively provided with travel limit grooves, and the aforementioned door body is convex backward Corresponding spacer shafts are provided, and their spacer shafts stretch into the stroke limit grooves of the upper push pedal (34) and the lower push pedal (35). 10. The anti-theft door lock transmission structure according to claim 1, characterized in that: the linkage lever (14) has a half-moon structure; the upper switch plate (5) has an L-shaped structure.