Safety lock for elevator

Abstract

The utility model relates to elevator door lock equipment, in particular to a safety lock for an elevator, which comprises a lock catch male seat and a lock catch female seat, mounting grooves for mounting the lock catch male seat and the lock catch female seat are respectively arranged on close sides of a door body of the elevator, and a group of extending plates are slidably mounted in the lock catch male seat. Two sets of locking blocks are slidably installed at the two ends of the extending-out plate correspondingly, the locking blocks are driven by a second driving assembly in the extending-out plate to move in a mirroring mode, a set of sealing plates are slidably installed in the lock catch female base, and the sealing plates are slidably connected with the interior of the lock catch female base through positioning assemblies; when the lock catch is not used, the lock catch male base and the lock catch female base are contained in the corresponding door bodies, and the problem that the lock catch male base and the lock catch female base are exposed in the environment and are impacted by foreign objects to be damaged is solved.

Description

Technical Field

[0001] The utility model relates to an elevator door lock device, in particular to a safety lock for an elevator. Background Art

[0002] The elevator door lock is an important component to ensure the safe use of the elevator. Its main function is to keep the elevator locked and closed, so as to prevent passengers from falling into the shaft and causing casualties. The elevator door lock is an extremely important safety device in the elevator. Only when it is determined that the safety door lock is in the unlocked or locked state, the elevator will open, close, move, etc.

[0003] The existing elevator safety door locks on the market are often directly exposed on the outside of the elevator. Due to the complex environment inside the elevator passage, the elevator safety door locks may be damaged by foreign objects, making it impossible for the elevator to open and close normally. Utility Model Content

[0004] The utility model aims to provide a safety lock for an elevator, which solves the problem that the existing elevator safety door locks on the market are often directly exposed to the outside of the elevator. Due to the complex environment in the elevator passage, the elevator safety door lock may be damaged by impact from foreign objects, and the elevator cannot be opened and closed normally.

[0005] To achieve the above object, the utility model provides a safety lock for an elevator, comprising a male lock seat and a female lock seat, wherein the door body of the elevator is provided with mounting grooves for mounting the male lock seat and the female lock seat respectively;

[0006] Wherein, a group of extension plates are slidably installed in the lock seat, and the extension plates are driven to linearly extend by a first driving component installed in the lock seat, and two groups of locking blocks are slidably installed at both ends of the extension plates, and the locking blocks are driven to move in a mirror image by a second driving component in the extension plates;

[0007] A group of sealing plates are slidably installed in the lock mother seat, and the sealing plates are slidably connected to the inside of the lock mother seat through a positioning assembly, and the sealing plates are elastically connected to the lock mother seat through multiple groups of elastic parts. A group of locking holes for inserting locking blocks are respectively provided on both sides of the lock mother seat.

[0008] As a further solution of the utility model, the first driving assembly includes a double-axis cylinder, a sliding seat and a transmission rod;

[0009] Wherein, the double-axis cylinder is fixedly installed in the locking male seat;

[0010] The two sets of sliding seats are slidably connected in the locking male seat and fixedly connected to the ends of the telescopic pistons on both sides of the double-axis cylinder;

[0011] One end of the two groups of transmission rods is hinged to the corresponding sliding seat, and the other end is hinged to the inner wall surface of the extension plate close to the locking male seat.

[0012] As a further solution of the utility model, the second drive assembly includes a dual-axis motor and two sets of drive screws;

[0013] The dual-axis motor is fixedly installed in the extension plate;

[0014] The two groups of driving screws are fixedly connected to the output shafts on both sides of the dual-axis motor respectively. One end of the locking block is provided with a mounting hole for inserting the end of the driving screw. An internal threaded cap for threadedly connecting the driving screw is fixedly installed at the opening of the mounting hole.

[0015] As a further solution of the utility model, the elastic member is a coil spring, and the two ends of the coil spring are respectively fixedly connected to the sealing plate and the inside of the lock mother seat.

[0016] As a further solution of the utility model, the positioning assembly includes a positioning rod and a positioning tube. A sliding block is provided at one end of the positioning rod. The sliding block is slidably connected in the positioning tube. The distal ends of the positioning rod and the positioning tube are respectively fixedly connected to the sealing plate and the inside of the locking socket.

[0017] Compared with the prior art, the utility model designs a lock male seat and a lock female seat, and respectively stores the lock male seat and the lock female seat in the installation grooves opened on the side of the elevator door body for protection, thereby preventing the lock male seat and the lock female seat from being exposed and preventing impurities and dust from entering the lock male seat and the lock female seat, thereby solving the problem that the existing elevator safety door locks on the market are often directly exposed to the outside of the elevator. Due to the complex environment in the elevator passage, the elevator safety door locks may be damaged by foreign objects, and the elevator cannot be opened and closed normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of a safety lock for an elevator.

[0019] Figure 2 The utility model provides Figure 1 A magnified schematic diagram of center A.

[0020] Figure 3 This is a structural schematic diagram of the locking male socket provided by the utility model.

[0021] Figure 4 This is a structural schematic diagram of the lock mother seat provided by the utility model.

[0022] In the attached figure: 1. door body; 2. male lock seat; 3. female lock seat; 4. double-axis cylinder; 5. sliding seat; 6. transmission rod; 7. double-axis motor; 8. driving screw; 9. locking block; 10. internal threaded cap; 11. sealing plate; 12. spiral spring; 13. positioning rod; 131. sliding block; 14. positioning tube; 15. extension plate. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0024] like Figures 1 to 4 As shown, in an embodiment of the utility model, a safety lock for an elevator comprises a male lock seat 2 and a female lock seat 3, and the door body 1 of the elevator is provided with mounting grooves for installing the male lock seat 2 and the female lock seat 3 respectively on the near side; wherein a group of extension plates 15 are slidably installed in the male lock seat 2, and the extension plates 15 are linearly extended by the first driving assembly installed in the male lock seat 2, and two groups of locking blocks 9 are slidably installed at both ends of the extension plates 15, and the locking blocks 9 are driven to move in a mirror image by the second driving assembly in the extension plates 15; a group of sealing plates 11 are slidably installed in the female lock seat 3, and the sealing plates 11 are slidably connected to the inside of the female lock seat 3 through a positioning assembly, and the sealing plates 11 are elastically connected to the inside of the female lock seat 3 through multiple groups of elastic members, and a group of locking holes for inserting the locking blocks 9 are respectively provided on both sides of the female lock seat 3;

[0025] In the present invention, the male lock seat 2 and the female lock seat 3 are respectively received in the installation grooves opened on the side of the door body 1 of the elevator. When the present invention is not in use, the extension plate 15 in the male lock seat 2 does not extend out of the installation groove, and the opening of the female lock seat 3 is sealed by the sealing plate 11 to prevent the male lock seat 2 and the female lock seat 3 from being exposed and to prevent impurities and dust from entering the male lock seat 2 and the female lock seat 3.

[0026] like Figure 3 As shown, in the embodiment of the utility model, the first driving assembly includes a double-axis cylinder 4, a sliding seat 5 and a transmission rod 6, wherein the double-axis cylinder 4 is fixedly installed in the lock male seat 2; two groups of the sliding seats 5 are slidably connected in the lock male seat 2, and are fixedly connected to the ends of the telescopic pistons on both sides of the double-axis cylinder 4; one end of the two groups of the transmission rods 6 is hinged to the corresponding sliding seat 5, and the other end is hinged to the inner wall surface of the extension plate 15 close to the lock male seat 2. In the utility model, the telescopic pistons on both sides of the double-axis cylinder 4 are synchronously extended and retracted, and the corresponding transmission rods 6 drive the extension plate 15 to achieve linear movement;

[0027] Of course, in actual design, the first drive component may also be made of other components with linear drive capabilities, such as a drive cylinder group, etc.

[0028] like Figure 3 and Figure 4 As shown, in the embodiment of the utility model, the second driving assembly includes a dual-axis motor 7 and two sets of driving screws 8, the dual-axis motor 7 is fixedly installed in the extension plate 15, and the two sets of driving screws 8 are correspondingly fixedly connected to the output shafts on both sides of the dual-axis motor 7, and one end of the locking block 9 is provided with a mounting hole for inserting the end of the driving screw 8, and an internal threaded cap 10 for threadedly connecting the driving screw 8 is fixedly installed at the opening of the mounting hole;

[0029] In the present invention, when the first driving assembly drives the extension plate 15 to extend out of the lock male seat 2 and insert into the lock female seat 3, the sealing plate 11 is squeezed by the extension plate 15 and retracts into the lock female seat 3. At the same time, the dual-axis motor 7 is started to drive the two sets of driving screws 8 to rotate, and the internal threaded cap 10 on the inner side of the locking block 9 drives the two sets of locking blocks 9 to linearly extend the extension plate 15 and insert into the corresponding locking holes, thereby realizing the locking of the lock male seat 2 and the lock female seat 3;

[0030] Further, the elastic member is a coil spring 12, and the two ends of the coil spring 12 are respectively fixedly connected to the sealing plate 11 and the inside of the lock female seat 3. When the extension plate 15 extends out of the lock male seat 2 and is inserted into the lock female seat 3, the multiple sets of coil springs 12 are in a compressed state. When the locking block 9 on the extension plate 15 is received in the extension plate 15 and the extension plate 15 is withdrawn from the lock female seat 3, the coil spring 12 is extended to support the sealing plate 11 to reset and seal the opening of the lock female seat 3.

[0031] Furthermore, the positioning assembly includes a positioning rod 13 and a positioning tube 14, and a sliding block 131 is provided at one end of the positioning rod 13, and the sliding block 131 is slidably connected in the positioning tube 14, and the distal ends of the positioning rod 13 and the positioning tube 14 are respectively fixedly connected to the sealing plate 11 and the inside of the lock mother seat 3. When the coil spring 12 extends to drive the sealing plate 11 to seal the opening of the lock mother seat 3, the sliding block 131 at the end of the positioning rod 13 abuts against the opening of the positioning tube 14, thereby limiting the moving stroke of the sealing plate 11.

[0032] In summary, the utility model designs a lock male seat 2 and a lock female seat 3, and respectively receives the lock male seat 2 and the lock female seat 3 in the installation grooves opened on the side of the elevator door body 1 for protection, so as to prevent the lock male seat 2 and the lock female seat 3 from being exposed, and prevent impurities and dust from entering the lock male seat 2 and the lock female seat 3, thereby solving the problem that the existing elevator safety door locks on the market are often directly exposed to the outside of the elevator. Due to the complex environment in the elevator passage, the elevator safety door locks may be damaged by foreign objects, and the elevator cannot be opened and closed normally.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0034] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A safety lock for an elevator, characterized in that: It includes a male lock seat and a female lock seat, and the door body of the elevator is provided with mounting grooves for mounting the male lock seat and the female lock seat respectively on the side close to the door body; Wherein, a group of extension plates are slidably installed in the lock seat, and the extension plates are driven to linearly extend by a first driving component installed in the lock seat, and two groups of locking blocks are slidably installed at both ends of the extension plates, and the locking blocks are driven to move in a mirror image by a second driving component in the extension plates; A group of sealing plates are slidably installed in the lock mother seat, and the sealing plates are slidably connected to the inside of the lock mother seat through a positioning assembly, and the sealing plates are elastically connected to the lock mother seat through multiple groups of elastic parts. A group of locking holes for inserting locking blocks are respectively provided on both sides of the lock mother seat.

2. A safety lock for an elevator according to claim 1, characterized in that: The first driving assembly includes a double-axis cylinder, a sliding seat and a transmission rod; Wherein, the double-axis cylinder is fixedly installed in the locking male seat; The two sets of sliding seats are slidably connected in the locking male seat, and are fixedly connected to the ends of the telescopic pistons on both sides of the double-axis cylinder; One end of the two groups of transmission rods is hinged to the corresponding sliding seat, and the other end is hinged to the inner wall surface of the extension plate close to the locking male seat.

3. The elevator safety lock according to claim 1, characterized in that: The second drive assembly includes a dual-axis motor and two sets of drive screws; The dual-axis motor is fixedly installed in the extension plate; The two groups of driving screws are fixedly connected to the output shafts on both sides of the dual-axis motor respectively. One end of the locking block is provided with a mounting hole for inserting the end of the driving screw. An internal threaded cap for threadedly connecting the driving screw is fixedly installed at the opening of the mounting hole.

4. The elevator safety lock according to claim 1, characterized in that: The elastic member is a coil spring, and the two ends of the coil spring are respectively fixedly connected to the sealing plate and the inside of the lock female seat.

5. The elevator safety lock according to claim 1, characterized in that: The positioning assembly includes a positioning rod and a positioning tube. A sliding block is provided at one end of the positioning rod. The sliding block is slidably connected in the positioning tube. The distal ends of the positioning rod and the positioning tube are fixedly connected to the sealing plate and the inside of the locking socket respectively.

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