Improved safety lock and safety door lock system

Abstract

The utility model discloses an improved safety lock and a safety door lock system. The improved safety lock comprises a mounting plate assembly, a plug pin assembly and a lock body assembly. The mounting plate assembly comprises a lock body mounting plate used for fixing the lock body assembly and a plug pin mounting plate used for fixing the plug pin assembly. The bolt assembly comprises a first bolt plate, a track base and a handle mechanism; the track seat comprises a seat body plate, and a track groove is formed in the outer side face of the seat body plate; the lock body assembly comprises a lock body and a fixing plate. The lock body is provided with a bolt opening; the first bolt plate moves towards the front end along the rail groove and is inserted into the bolt opening, and the bolt assembly and the lock body assembly can be locked with each other. The seat body plate is fixed on the bolt mounting plate through a first bolt, and an adjusting groove for the first bolt to penetrate through is formed in the bolt mounting plate; a positioning structure is arranged between the track seat and the handle mechanism; an extension block is arranged on the handle mechanism; the door type safety lock has the advantages of improving the matching degree of the safety lock installed on various door types, and being simple in structure and convenient to expand.

Description

Technical Field

[0001] The utility model relates to a lock, in particular to an improved safety lock and a safety door lock system, which can be applied to single-side doors or double-leaf doors, ordinary doors or fence doors, and can also be applied to various door types such as hinge doors, sliding doors, swing doors, push-pull doors or suspended-rail doors. Background Art

[0002] A safety door lock is a commonly used physical isolation product. Especially in important workshops of factories, construction sites of production, and high-risk experimental sites, it is necessary to reliably lock the entrance and exit doors and fence doors. Furthermore, an intelligent electronic safety lock is connected to a safety monitoring background, and its reliability, compatibility, and degree of intelligence are related to personal and property safety.

[0003] The safety door locks adopted in the prior art usually include a bolt, an I-shaped pull plate, a bolt chute, a bolt catch, and a fixing plate. The fixing plate is fixedly installed on the side frame of the locking part of the door, the bolt chute is fixedly installed on the part of the door leaf adjacent to the locking part, the bolt is at the front end of the I-shaped pull plate, and the I-shaped pull plate is axially inserted into the bolt chute and faces the bolt catch.

[0004] This kind of safety door lock has at least the following two technical problems: First, for different door types and sizes, it is necessary to customize bolt chutes and fixing plates of different specifications, and the installation compatibility is relatively low; Second, it can only be manually locked through the bolt and the bolt catch, without considering the reservation for function expansion. Summary of the Utility Model

[0005] In view of the aforementioned problems of low compatibility and poor expandability of the safety door locks in the prior art, the technical problem to be solved by the utility model is to provide an improved safety lock and a safety door lock system, which can at least solve one of the aforementioned technical problems, so as to improve the compatibility of the safety lock installed on various different door types, further simplify the process on the premise of ensuring reliable locking, and reserve space for the expansion of intelligent functions.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows: an improved safety lock, which includes a mounting plate assembly, a bolt assembly, and a lock body assembly;

[0007] The mounting plate assembly includes a lock body mounting plate for fixing the lock body assembly and a bolt mounting plate for fixing the bolt assembly;

[0008] The bolt assembly includes a first bolt plate, a track seat for the first bolt plate to move, and a handle mechanism fixedly connected to the first bolt plate; the track seat includes a seat body plate, and an outer side surface of the seat body plate is provided with a track groove consistent with the length direction of the first bolt plate; the first bolt plate is inserted into the track groove and can move along the length direction in the track groove;

[0009] The lock body assembly comprises a lock body and a fixing plate for fixing the lock body; the lock body is provided with a laterally penetrating latch opening; the first latch plate moves toward the front end along the track groove and is inserted into the latch opening, and the latch assembly and the lock body assembly can be locked with each other; the first latch plate moves toward the rear end along the track groove and leaves the latch opening, and the latch assembly and the lock body assembly are unlocked;

[0010] The fixing plate is fixed to the lock body mounting plate; the seat body plate is fixed to the latch mounting plate by a first bolt, and the latch mounting plate is provided with an adjustment slot for the first bolt to pass through; the adjustment slot is linear and extends along the moving direction of the first latch plate;

[0011] A positioning structure is provided between the track seat and the handle mechanism, for positioning the first latch plate at a locking position inserted into the latch opening and an unlocking position away from the latch opening;

[0012] The handle mechanism is provided with an expansion block for expanding the second latch plate.

[0013] The preferred technical solution adopted by the utility model to solve the above technical problems is: the lock body mounting plate includes a first panel, at least one side of the first panel is provided with a first side panel; the fixing plate is fixed on the first panel of the lock body mounting plate.

[0014] The preferred technical solution adopted by the utility model to solve the above technical problems is: the bolt mounting plate includes a second panel, and a second side panel is provided on one side of the second panel; the seat plate is fixed to the second panel of the bolt mounting plate by a first bolt, and the adjustment groove is opened on the second panel.

[0015] The preferred technical solution adopted by the utility model to solve the above technical problems is: two expansion holes are opened at the bottom of the expansion block, expansion bolts are pre-installed in the expansion holes, and the expansion holes and the expansion bolts are used to fix the expanded second latch plate.

[0016] The preferred technical solution adopted by the utility model to solve the above technical problems is: an electronic lock fixing plate is also arranged on the fixing plate, and the electronic lock fixing plate is located below the lock body and is used to expand the electronic lock matching the second latch plate.

[0017] The preferred technical solution adopted by the utility model to solve the above technical problems is: the positioning structure includes a positioning groove arranged on the track seat, and an elastic positioning pin arranged on the handle mechanism;

[0018] The positioning sunk groove is arranged at the bottom of the track groove along the length direction. A first positioning sunk hole is recessed at the front end of the positioning sunk groove, and a second positioning sunk hole is recessed at the rear end of the positioning sunk groove.

[0019] The end of the elastic positioning pin is located in the positioning sunk groove and moves along the bottom of the positioning sunk groove as the first latch plate moves. The elastic positioning pin enters the first positioning sunk hole, and the first latch plate is positioned at the locked position of inserting into the latch opening. The elastic positioning pin enters the second positioning sunk hole, and the first latch plate is positioned at the unlocked position of leaving the latch opening.

[0020] The preferred technical solution adopted by the present utility model to solve the above technical problems is that the outer end of the elastic positioning pin is fixed on the handle mechanism, and the elastic positioning pin passes through the first latch plate so that its inner end is located in the positioning sunk groove. An elastic member is arranged inside the elastic positioning pin, and a positioning bead is arranged at the inner end of the elastic positioning pin. The positioning bead enters and exits the first positioning sunk hole and the second positioning sunk hole by means of the elastic force of the elastic member.

[0021] The preferred technical solution adopted by the present utility model to solve the above technical problems is that the first latch plate is fixed to the handle mechanism by two second bolts. The positioning structure includes a positioning sunk groove arranged on the track seat and the second bolts.

[0022] The positioning sunk groove is arranged at the bottom of the track groove along the length direction. The front end of the positioning sunk groove is open for the second bolt at the front end of the first latch plate to enter and exit. The rear end of the positioning sunk groove is closed.

[0023] A semi-circular abutting opening is arranged at the rear end of the seat body plate. The head of the second bolt at the rear end of the first latch plate is thicker than the head of the second bolt at the front end to form an abutting portion matching the abutting opening.

[0024] When the first latch plate moves to the locked position, the abutting portion enters and abuts against the abutting opening.

[0025] The preferred technical solution adopted by the present utility model to solve the above technical problems is that a lock core and a key matching the lock core are arranged inside the lock body.

[0026] A lock hole matching the lock core is arranged at the front end of the first latch plate. When the first latch plate is in the locked position, the key controls the lock head of the lock core to enter the lock hole to lock the lock body and the first latch plate.

[0027] Another technical solution adopted by the present utility model to solve the above technical problems is: a safety door lock system, including an improved safety lock, and further including a second bolt plate and an electronic lock;

[0028] The second bolt plate is fixedly installed on the extension block; an electronic lock fixing plate is arranged on the fixing plate, and the electronic lock is fixedly installed on the electronic lock fixing plate;

[0029] The handle mechanism drives the first bolt plate to move forward along the track groove and insert into the bolt hole, the second bolt plate inserts into the electronic lock and locks, and the bolt assembly and the lock body assembly can be locked with each other;

[0030] The second bolt plate is unlocked from the electronic lock, and the handle mechanism can drive the first bolt plate to move backward along the track groove and leave the bolt hole, so that the bolt assembly and the lock body assembly are unlocked.

[0031] Compared with the prior art, the advantages of the present utility model are: 1. By configuring the mounting plate assembly, the fixing plate of the lock body assembly is fixed by the lock body mounting plate, and the bolt assembly is fixed by the bolt mounting plate, replacing the way of directly fixing the bolt chute and the fixing plate to the door frame in the prior art. Thus, when actually installing the lock, the mounting plate assembly is the component directly and reliably fixed to the door frame, and the bolt assembly and the lock body assembly are installed on the door frame through the mounting plate assembly, so that it can adapt to various types and sizes of door frames and door types, without the need to customize the size and shape of the fixing plate and the track seat.

[0032] Furthermore, an adjustment groove is arranged on the bolt mounting plate. Thus, when the seat plate of the track seat is fixedly installed on the bolt mounting plate, by adjusting the relative position of the first bolt on the adjustment groove, the distance between the bolt assembly and the lock body assembly can be adjusted to the most appropriate distance, especially ensuring that the first bolt plate can be smoothly inserted into the bolt hole for locking, further matching the different distances between the two door frames, improving the installation compatibility of the improved safety lock, and facilitating the universal installation of the lock for various door types and sizes.

[0033] 2. The first bolt plate is positioned at the locked position and the unlocked position by an elastic positioning pin on the handle mechanism moving along the bottom of the positioning sink and entering and exiting the first positioning sink hole and the second positioning sink hole. On the one hand, the sink hole and sink structure can avoid the direct contact between the movable parts and the door frame or other parts, which neither hinders the installation of the lock nor weakens the strength of the components of the positioning structure, and prolongs the service life; on the other hand, the component structure is streamlined, the positioning reliability is higher, and the consumables and process costs are also reduced.

[0034] 3. An extension block for expanding the second latch plate is provided on the handle mechanism, reserving an expansion position for expanding the safety door lock system with an electronic lock, which belongs to a forward-looking functional expansion design and gives users more function options. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present utility model will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present utility model. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0036] Figure 1 Schematic structural diagram of the safety door lock system of Embodiment 1;

[0037] Figure 2 Exploded view of the improved safety lock of Embodiment 1;

[0038] Figure 3 Schematic structural diagram of the first latch plate and the handle mechanism of Embodiment 1;

[0039] Figure 4 Exploded view of the first latch plate and the handle mechanism of Embodiment 1;

[0040] Figure 5 Schematic structural diagram of the track seat of Embodiment 1 Figure 1 ;

[0041] Figure 6 Schematic structural diagram of the track seat of Embodiment 1 Figure 2 ;

[0042] Figure 7 Schematic diagram of the application scenario of the safety door lock system of Embodiment 1 installed on a double door;

[0043] Figure 8 For Figure 7 Partial enlarged view at A;

[0044] Figure 9 Schematic structural diagram of some components of the improved safety lock of Embodiment 2;

[0045] Figure 10 Schematic structural diagram of the first latch plate and the handle mechanism of Embodiment 2;

[0046] Figure 11 Schematic structural diagram of the safety door lock system of Embodiment 3;

[0047] Figure 12Schematic diagram of the application scenario where the security door lock system of Embodiment 3 is installed on a single-leaf door;

[0048] Figure 13 For Figure 12 Partial enlarged view at B;

[0049] Explanation of reference numerals:

[0050] Embodiment 1: Security door lock system 200, second latch plate 201, electronic lock 202, electronic keyhole 202a, improved security lock 100, mounting plate assembly 101, lock body mounting plate 10, first panel 11, first side plate 12, latch mounting plate 20, second panel 21, second side plate 22, adjustment slot 23, latch assembly 102, first latch plate 30, track base 40, base plate 41, track groove 42, limiting strip 43, positioning sink 44, first positioning sink hole 45a, second positioning sink hole 45b, abutting port d1, abutting portion d2, handle mechanism 50, handle 51, connecting bar 52, elastic positioning pin 53, positioning bead 53a, extension block 54, extension hole 54a, extension bolt 54b, first pin hole k1, second pin hole k2, lock body assembly 103, lock body 60, latch opening 61, fixing plate 70, electronic lock fixing plate 71, first bolt s1, second bolt s2, double-leaf door 300, left door 301, right door 302, inner door frame of the left door 301a, inner door frame of the right door 302a;

[0051] Embodiment 2: Improved security lock 100’, first latch plate 30’, keyhole 31’, lock body 60’, lock core 62’, lock head 62a’, key 63’;

[0052] Embodiment 3: Single-leaf door 300”, door post 301”, right door 302”, inner door frame of the right door 302a”, lock body mounting plate 10”, first panel 11”, first side plate 12”, latch mounting plate 20”, second panel 21”, second side plate 22”. Detailed implementation manners

[0053] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary, and should not be construed as limiting the protection scope of the present invention.

[0054] In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or the directions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. "First" and "second" are only for the purpose of making the description easier to understand, without any other directional meaning, and cannot be used as a limitation on the present utility model.

[0055] Embodiment 1:

[0056] like Figures 1 to 8 The safety door lock system 200 provided in this embodiment is shown, which includes the improved safety lock 100 provided in this embodiment, as well as a second latch plate 201 and an electronic lock 202.

[0057] First, let's look at the improved safety lock 100 in detail. Figure 1 and Figure 2 As shown, it includes a mounting plate assembly 101, a latch assembly 102 and a lock body assembly 103. The mounting plate assembly 101 includes a lock body mounting plate 10 for fixing the lock body assembly 103, and a latch mounting plate 20 for fixing the latch assembly 102.

[0058] like Figure 2 As shown, the latch assembly 102 includes a first latch plate 30, a track seat 40 for the first latch plate 30 to move, and a handle mechanism 50 fixedly connected to the first latch plate 30. The track seat 40 includes a seat plate 41, and the outer side surface of the seat plate 41 is provided with a track groove 42 that is consistent with the length direction of the first latch plate 30. The first latch plate 30 is inserted into the track groove 42 and can move in the track groove 42 along the length direction.

[0059] Regarding the specific structure of the track groove 42, as shown in FIG. Figure 5 and Figure 6 As shown, two inverted L-shaped limiting strips 43 are oppositely arranged along the length direction at the middle position of the seat body plate 41, and a track groove 42 that is consistent with the length direction of the first latch plate 30 and has matching size is formed between the two limiting strips 43, and the limiting strips 43 limit the first latch plate 30 in the track groove 42. In other embodiments, the track groove 42 can also be formed by directly grooving the seat body plate 41, but the entire track seat 40 will appear thick and heavy, which is not convenient for fastener installation and has a high cost of consumables.

[0060] like Figure 2As shown, the lock body assembly 103 includes a lock body 60 and a fixing plate 70 for fixing the lock body 60. The lock body 60 is provided with a laterally penetrating bolt hole 61. As Figure 1 and Figure 8 shown, the first bolt plate 30 moves forward along the track groove 42 and inserts into the bolt hole 61, and the bolt assembly 102 and the lock body assembly 103 can be locked to each other. The first bolt plate 30 moves backward along the track groove 42 and leaves the bolt hole 61, and the bolt assembly 102 and the lock body assembly 103 are unlocked.

[0061] It should be noted that the "front end" and "back end" here are relative to the moving direction of the first bolt plate 30. After the improved safety lock 100 is installed, the moving direction of the first bolt plate 30 approaching the lock body assembly 103 is set as "forward", and its movement trend is from the unlocked position to the locked position; the moving direction of the first bolt plate 30 away from the lock body assembly 103 is set as "backward", and its movement trend is from the locked position to the unlocked position. Therefore, in the present utility model, for components such as the first bolt plate 30, the track groove 42, and the positioning sink 44, the front end refers to the end close to the lock body assembly 103 under the foregoing relative position conditions, and the back end refers to the end far from the lock body assembly 103 under the foregoing relative position conditions.

[0062] As Figure 1 and Figure 2 shown, the fixing plate 70 is fixed on the lock body mounting plate 10, the seat body plate 41 is fixed on the bolt mounting plate 20 with a first bolt s1, and the bolt mounting plate 20 is provided with an adjustment groove 23 for the first bolt s1 to pass through. The adjustment groove 23 is linear and extends along the moving direction of the first bolt plate 30. In this embodiment, four adjustment grooves 23 are arranged in parallel to cooperate with the first bolts s1 at the four corners of the seat body plate 41.

[0063] So far, the present utility model first configures the mounting plate assembly 101, fixes the fixing plate 70 of the lock body assembly 103 with the lock body mounting plate 10, and fixes the seat body plate 41 of the track seat 40 of the bolt assembly 102 with the bolt mounting plate 20, replacing the way of directly fixing the bolt chute and the fixing plate to the door frame in the prior art. Thus, when actually installing the lock, the mounting plate assembly 101 is a component directly and reliably fixed to the door frame, and the bolt assembly 102 and the lock body assembly 103 are installed on the door frame through the mounting plate assembly 101, so that it can adapt to door frames of various models and sizes without customizing the sizes and shapes of the fixing plate 70 and the track seat 40.

[0064] Further, an adjustment groove 23 is provided on the bolt mounting plate 20. Thus, when the seat plate 41 of the track seat 40 is fixedly mounted on the bolt mounting plate 20, by adjusting the relative position of the first bolt s1 on the adjustment groove 23, the distance between the bolt assembly 102 and the lock body assembly 103 can be adjusted to the most appropriate distance. In particular, it is ensured that the first bolt plate 30 can be smoothly inserted into the bolt opening 61 for locking, thereby further matching different distances between the two door frames, improving the installation compatibility of the improved safety lock 100, and facilitating the universal installation of the lock for various door sizes.

[0065] A positioning structure is provided between the track seat 40 and the handle mechanism 50 for positioning the first bolt plate 30 at the locking position where it is inserted into the bolt opening 61 and the unlocking position where it leaves the bolt opening 61.

[0066] Specifically, in this embodiment, as Figures 3 to 6 shown, the positioning structure includes a positioning sunk groove 44 provided on the track seat 40 and an elastic positioning pin 53 provided on the handle mechanism 50. The positioning sunk groove 44 is opened at the bottom of the track groove 42 along the length direction. A first positioning sunk hole 45a is recessed at the front end of the positioning sunk groove 44, and a second positioning sunk hole 45b is recessed at the rear end of the positioning sunk groove 44.

[0067] The end of the elastic positioning pin 53 is located in the positioning sunk groove 44 and moves along the bottom of the positioning sunk groove 44 as the first bolt plate 30 moves. When the elastic positioning pin 53 enters the first positioning sunk hole 45a, the first bolt plate 30 is positioned at the locking position where it is inserted into the bolt opening 61. When the elastic positioning pin 53 enters the second positioning sunk hole 45b, the first bolt plate 30 is positioned at the unlocking position where it leaves the bolt opening 61. The positioning sunk groove 44 can limit the movement of the elastic positioning pin 53 therein, playing a guiding and positioning role to prevent the elastic positioning pin 53 from shifting and affecting the positioning effect.

[0068] Thus, the utility model positions the first bolt plate 30 at the locking position and the unlocking position by means of an elastic positioning pin 53 on the handle mechanism 50 moving along the bottom of the positioning sunk groove 44 as the first bolt plate 30 moves and entering and leaving the first positioning sunk hole 45a and the second positioning sunk hole 45b. On the one hand, the use of the sunk groove and sunk hole structure can avoid direct contact between the movable parts and the door frame or other parts, which neither hinders the installation of the lock nor reduces the strength of the components of the positioning structure and prolongs the service life. On the other hand, the component structure is streamlined, making the positioning more reliable, and the consumables and process costs are also reduced.

[0069] As Figure 3 and Figure 4As shown, the outer end of the elastic positioning pin 53 is fixed to the handle mechanism 50. The elastic positioning pin 53 passes through the first latch plate 30 so that its inner end is located within the positioning sink 44. An elastic member (not shown in the figure) is provided inside the elastic positioning pin 53. A positioning bead 53a is provided at the inner end of the elastic positioning pin 53. The positioning bead 53a enters and exits the first positioning sink hole 45a and the second positioning sink hole 45b by virtue of the elastic force of the elastic member.

[0070] In other embodiments, other designs may also be adopted to enable the elastic positioning pin 53 to enter and exit the first positioning sink hole 45a and the second positioning sink hole 45b. For example, the elastic member is provided inside the handle mechanism 50, and the elastic positioning pin 53 enters and exits the first positioning sink hole 45a and the second positioning sink hole 45b by virtue of the elastic force of the elastic member. In this embodiment, by adopting the method of providing the elastic member inside the elastic positioning pin 53 and the positioning bead 53a at the inner end, the frictional force when the inner end of the elastic positioning pin 53 moves at the bottom of the positioning sink 44 can be reduced in a balanced manner.

[0071] As Figure 3 and Figure 4 shown, the handle mechanism 50 includes a handle 51 and a connecting bar 52 for fixedly connecting the handle 51 and the first latch plate 30. The handle 51 and the first latch plate 30 are respectively fixed to the outer side and the inner side of the connecting bar 52 with a second bolt s2. The outer end of the elastic positioning pin 53 is fixed to the first pin hole k1 of the connecting bar 52, passes through the second pin hole k2 on the first latch plate 30, so that its inner end is located within the positioning sink 44.

[0072] As Figure 2 、 Figures 4 to 6 shown, the first latch plate 30 is fixed to the connecting bar 52 of the handle mechanism 50 with two second bolts s2. The front end of the positioning sink 44 is open to allow the second bolt s2 at the front end of the first latch plate 30 to enter and exit. The rear end of the positioning sink 44 is closed to prevent the user from pulling out the first latch plate 30 from the rear end of the track groove 42 with excessive force. At this time, even if the closed rear end of the positioning sink 44 cannot restrict the elastic positioning pin 53, it can restrict the second bolt s2 at the front end of the first latch plate 30.

[0073] A semi-circular abutting opening d1 is provided at the rear end of the seat body plate 41. The bolt head of the second bolt s2 at the rear end of the first latch plate 30 is thicker than the bolt head of the second bolt s2 at the front end to form an abutting portion d2 that matches the abutting opening d1. When the first latch plate 30 moves to the locking position, the abutting portion d2 enters and abuts against the abutting opening d1, thereby restricting the first latch plate 30 from being further moved forward.

[0074] It should be noted here that the first set of positioning structures formed by the positioning sink 44, the first positioning sink hole 45a, the second positioning sink hole 45b, and the elastic positioning pin 53 can give the user a physical positioning signal when the first plug plate 30 moves into place at the locked position or the unlocked position during actual use. However, especially for users with relatively strong operating force, although its positioning prompt function is sufficient, the positioning strength function is still slightly insufficient.

[0075] Therefore, in this embodiment, the closed end at the rear of the positioning sink 44, the second bolt s2 at the front end, the abutting port d1 of the seat body plate 41, and the abutting part d2 of the second bolt s2 at the rear end are used as the second set of positioning structures. Since its structural strength is stronger than the structural strength of the elastic positioning pin 53 entering and exiting the sink hole, it can reinforce the first set of positioning structures in terms of the positioning strength function.

[0076] In addition, in other embodiments, the first set of positioning structures may not be provided, and the second set of positioning structures can be simply used directly as the positioning structure, that is, it includes the positioning sink 44 and the second bolt s2 provided on the track seat 40. The rear end of the positioning sink 44 is closed to limit the second bolt s2 at the front end of the first plug plate 30. The first plug plate 30 is positioned at the unlocked position away from the plug hole 61. The abutting part d2 of the second bolt s2 at the rear end of the first plug plate 30 enters and abuts against the abutting port d1, and the first plug plate 30 is positioned at the locked position inserted into the plug hole 61. The operation smoothness and experience of this design are reduced compared with this embodiment, but the reduction in component structure and cost is increased.

[0077] As Figure 2 shown, the lock body mounting plate 10 includes a first panel 11, and a first side plate 12 is provided on one side of the first panel 11. The plug mounting plate 20 includes a second panel 21, and a second side plate 22 is provided on one side of the second panel 21. The fixing plate 70 is fixed on the first panel 11 of the lock body mounting plate 10, the seat body plate 41 is fixed on the second panel 21 of the plug mounting plate 20 with a first bolt s1, and the adjustment slot 23 is opened on the second panel 21.

[0078] As Figure 7 and Figure 8As shown in the figure, the improved safety lock 100 provided in this embodiment is applied to the double-door 300. The double-door 300 includes a left door 301 and a right door 302. The lock body mounting plate 10 is mounted on the inner door frame 301a of the left door 301, with the first panel 11 facing outward and the first side plate 12 facing the right door 302. The included angle formed by the first panel 11 and the first side plate 12 just encloses two adjacent sides of the inner door frame 301a of the left door 301. The bolt mounting plate 20 is mounted on the inner door frame 302a of the right door 302, with the second panel 21 facing outward and the second side plate 22 facing the left door 301. The included angle formed by the second panel 21 and the second side plate 22 just encloses two adjacent sides of the inner door frame 302a of the right door 302. Thus, the lock body mounting plate 10 and the bolt mounting plate 20 can be more reliably fixed and mounted on the corresponding door frames.

[0079] The lock body assembly 103 is fixedly mounted on the lock body mounting plate 10, and the bolt assembly 102 is fixedly mounted on the bolt mounting plate 20. The horizontal mounting position of the bolt assembly 102 is adjusted by the cooperation between the adjustment slot 23 and the first bolt s1, so that the bolt assembly 102 and the lock body assembly 103 are mounted at a suitable distance to adapt to different distances between the left door 301 and the right door 302.

[0080] As Figure 3 and Figure 4 shown in the figure, an extension block 54 for extending the second bolt plate 201 is provided on the handle mechanism 50. The extension block 54 is fixed to the lower side of the connecting bar 52. Two extension holes 54a are formed at the bottom of the extension block 54, and extension bolts 54b are pre-arranged in the extension holes 54a. The extension holes 54a and the extension bolts 54b are used to fix the extended second bolt plate 201.

[0081] As Figure 2 shown in the figure, an electronic lock mounting plate 71 is further provided on the fixing plate 70. The electronic lock mounting plate 71 is located below the lock body 60 and is used to extend an electronic lock 202 that matches the second bolt plate 201.

[0082] As Figure 1 and Figure 8 shown in the figure, for the safety door lock system 200 provided in this embodiment, the second bolt plate 201 is fixedly mounted on the bottom of the extension block 54 and is fixed with the extension bolts 54b. The electronic lock 202 is fixedly mounted on the electronic lock mounting plate 71, and the electronic lock hole 202a of the electronic lock 202 faces the second bolt plate 201.

[0083] When the handle mechanism 50 drives the first latch plate 30 to move forward along the track groove 42 and insert into the latch opening 61, the second latch plate 201 inserts into the electronic lock hole 202a of the electronic lock 202 and locks, and the latch assembly 102 and the lock body assembly 103 can be locked to each other. When the second latch plate 201 is unlocked from the electronic lock 202, the handle mechanism 50 can drive the first latch plate 30 to move backward along the track groove 42 and leave the latch opening 61, so that the latch assembly 102 and the lock body assembly 103 are unlocked.

[0084] It can be seen that the safety door lock system 200 provided in this embodiment initially locks the lock body 60 with the first latch plate 30, and finally locks the lock with the electronic lock 202 and the second latch plate 201. The electronic lock 202 can be connected to the safety monitoring background. When it is unlocked, high-position production equipment, experimental equipment, etc. inside the door can automatically stop working, preventing personal and property losses caused by safety accidents after personnel enter.

[0085] In addition, the method of finally locking the lock with the electronic lock 202 and the second latch plate 201 can be applied to various door types such as the left door 301 and the right door 302 of the double-door 300 being hinge doors, sliding doors, swing doors, sliding doors or hanging rail doors.

[0086] Furthermore, the improved safety lock 100 provided by the present utility model is provided with an extension block 54 on the handle mechanism 50 for extending the second latch plate 201, and an electronic lock fixing plate 71 for extending the electronic lock 202 is provided on the fixing plate 70, reserving an extension position for expanding the safety door lock system 200 with the electronic lock 202, which belongs to a forward-looking function expansion design and gives users more function options.

[0087] Embodiment 2:

[0088] As Figure 9 and Figure 10 shown is a schematic structural diagram of some components of the improved safety lock 100' provided in this embodiment, highlighting the differences from Embodiment 1. A lock core 62' and a key 63' matching the lock core 62' are provided inside the lock body 60'.

[0089] A lock hole 31' matching the lock core 62' is provided at the front end of the first latch plate 30'. When the first latch plate 30' is in the locked position, the key 63' controls the lock head 62a' of the lock core 62' to enter the lock hole 31' to lock the lock body 60' and the first latch plate 30'. The key 63' controls the lock head 62a' of the lock core 62' to leave the lock hole 31' to unlock the lock body 60' and the first latch plate 30'.

[0090] This embodiment further provides a mechanical locking method using a lock core 62' and a key 63'. Of course, the mechanical locking method and the electronic locking method in Embodiment 1 can be used alone or simultaneously. When used simultaneously, a dual safety protection mode of mutual backup can be formed between the two, thereby improving the reliability, safety, and intelligence level of the entire security door lock system.

[0091] The other structures of the improved safety lock and the security door lock system provided in this embodiment are the same as those in Embodiment 1, and will not be repeated here, nor will they be repeatedly shown in the drawings.

[0092] Embodiment 3:

[0093] As Figures 11 to 13 shown, the improved safety lock 100” and the security door lock system 200” provided in this embodiment, the lock body mounting plate 10” includes a first panel 11”, and first side plates 12” are provided on both opposite sides of the first panel 11”.

[0094] As Figure 12 and Figure 13 shown, the improved safety lock 100” provided in this embodiment is applied to a single-leaf door 300”. The lock body mounting plate 10” is mounted on the door post 301”. The door post 301” is clamped between the first panel 11” and the two first side plates 12” to adapt to the structure of the door post 301” different from the door frame. The bolt mounting plate 20” is mounted on the inner door frame 302a” of the right door 302”. The second panel 21” faces outward, and the second side plate 22” faces the door post 301”. The included angle formed by the second panel 21” and the second side plate 22” just frames the two adjacent sides of the inner door frame 302a” of the right door 302”. Thus, the lock body mounting plate 10” and the bolt mounting plate 20” can also be more reliably fixed and mounted on the corresponding door post and door frame.

[0095] The other structures of the improved safety lock and the security door lock system provided in this embodiment are the same as those in Embodiment 1, and will not be repeated here, nor will they be repeatedly shown in the drawings.

[0096] It should be noted that: similar reference numerals represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings.

[0097] The above has introduced the improved safety lock and the safety door lock system provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the present utility model and its core idea. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. An improved safety lock, characterized in that: It includes a mounting plate assembly, a bolt assembly, and a lock body assembly; The mounting plate assembly includes a lock body mounting plate for fixing the lock body assembly and a bolt mounting plate for fixing the bolt assembly; The bolt assembly includes a first bolt plate, a track seat for the first bolt plate to move, and a handle mechanism fixedly connected to the first bolt plate; the track seat includes a seat body plate, and a track groove consistent with the length direction of the first bolt plate is provided on the outer side surface of the seat body plate; the first bolt plate is inserted into the track groove and can move along the length direction in the track groove; The lock body assembly includes a lock body and a fixing plate for fixing the lock body; a laterally penetrating bolt opening is provided in the lock body; the first bolt plate moves forward along the track groove and is inserted into the bolt opening, and the bolt assembly and the lock body assembly can be locked to each other; the first bolt plate moves backward along the track groove and leaves the bolt opening, and the bolt assembly and the lock body assembly are unlocked; The fixing plate is fixed on the lock body mounting plate; the seat body plate is fixed on the bolt mounting plate with a first bolt, and an adjustment groove for the first bolt to pass through is provided on the bolt mounting plate; the adjustment groove is linear and extends along the moving direction of the first bolt plate; A positioning structure is provided between the track seat and the handle mechanism for positioning the first bolt plate at the locked position of inserting into the bolt opening and the unlocked position of leaving the bolt opening; An expansion block for expanding a second bolt plate is provided on the handle mechanism.

2. The improved safety lock according to claim 1, wherein: The lock body mounting plate includes a first panel, and at least one side portion of the first panel is provided with a first side plate; the fixing plate is fixed on the first panel of the lock body mounting plate.

3. The improved safety lock according to claim 1, wherein: The bolt mounting plate includes a second panel, and one side portion of the second panel is provided with a second side plate; the seat body plate is fixed on the second panel of the bolt mounting plate with a first bolt, and the adjustment groove is provided on the second panel.

4. The improved safety lock according to claim 1, wherein: Two expansion holes are provided at the bottom of the expansion block, and expansion bolts are preset in the expansion holes, and the expansion holes and the expansion bolts are used to fix the expanded second bolt plate.

5. The improved safety lock according to claim 1, wherein: An electronic lock fixing plate is further provided on the fixing plate, and the electronic lock fixing plate is located below the lock body and is used to expand an electronic lock matching the second bolt plate.

6. The improved safety lock according to claim 1, wherein: The positioning structure includes a positioning sunk groove provided on the track seat and an elastic positioning pin provided on the handle mechanism; The positioning sunk groove is opened along the length direction at the bottom of the track groove, a first positioning sunk hole is recessed at the front end of the positioning sunk groove, and a second positioning sunk hole is recessed at the rear end of the positioning sunk groove; The end of the elastic positioning pin is located within the positioning sunk groove and moves along the bottom of the positioning sunk groove as the first bolt plate moves; the elastic positioning pin enters the first positioning sunk hole, and the first bolt plate is positioned at the locked position of inserting into the bolt opening; the elastic positioning pin enters the second positioning sunk hole, and the first bolt plate is positioned at the unlocked position of leaving the bolt opening.

7. The improved safety lock according to claim 6, characterized in that: The outer end of the elastic positioning pin is fixed on the handle mechanism, and the elastic positioning pin passes through the first bolt plate so that its inner end is located within the positioning sunk groove; an elastic member is provided inside the elastic positioning pin, a positioning bead is provided at the inner end of the elastic positioning pin, and the positioning bead enters and exits the first positioning sunk hole and the second positioning sunk hole by means of the elastic force of the elastic member.

8. The improved safety lock according to claim 1, characterized in that: The first bolt plate is fixed to the handle mechanism by two second bolts; the positioning structure includes a positioning sunk groove provided on the track base and the second bolts; The positioning sunk groove is opened along the length direction at the bottom of the track groove, the front end of the positioning sunk groove is open for the second bolt at the front end of the first bolt plate to enter and exit; the rear end of the positioning sunk groove is closed; The rear end of the seat body plate is provided with a semi-circular abutting opening, and the bolt head of the second bolt at the rear end of the first bolt plate is thicker than the bolt head of the second bolt at the front end to form an abutting portion matching the abutting opening; When the first bolt plate moves to the locked position, the abutting portion enters and abuts against the abutting opening.

9. The improved safety lock according to claim 1, characterized in that: A lock core and a key matching the lock core are provided inside the lock body; A lock hole matching the lock core is opened at the front end of the first bolt plate. When the first bolt plate is in the locked position, the key controls the lock head of the lock core to enter the lock hole to lock the lock body and the first bolt plate.

10. A safety door lock system, characterized in that: It includes the improved safety lock according to any one of claims 1-9, and further includes a second bolt plate and an electronic lock; The second bolt plate is fixedly installed on the extension block; an electronic lock fixing plate is provided on the fixing plate, and the electronic lock is fixedly installed on the electronic lock fixing plate; The handle mechanism drives the first bolt plate to move forward along the track groove and insert into the bolt opening, the second bolt plate inserts into the electronic lock and is locked, and the bolt assembly and the lock body assembly can be locked with each other; The second bolt plate is unlocked from the electronic lock, and the handle mechanism can drive the first bolt plate to move backward along the track groove and leave the bolt opening, so that the bolt assembly and the lock body assembly are unlocked.

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