Elevator car door lock

Abstract

The utility model discloses an elevator car door lock, and particularly relates to the technical field of elevator car door locks, which comprises a lock catch component mounted on an elevator component and used for locking and fixing. The lock catch assembly comprises an installation column and a fixing column which are arranged below the elevator assembly, an electromagnetic column is installed on the side, close to the fixing column, of the installation column, the outer portion of the end, close to the fixing column, of the electromagnetic column is sleeved with an iron cylinder, and the iron cylinder is installed on the side, close to the electromagnetic column, of the fixing column. The two elevator doors can be locked and fixed through nesting connection of the electrified electromagnetic column and the iron cylinder, the situation that the two elevator doors are loosened and opened is avoided, when the electromagnetic column is powered off and separated from the iron cylinder, the smoothness when the two elevator doors are separated can be guaranteed, the stability of the locking mode is high, and the safety is high. And meanwhile, the protective cylinder is pushed to move outwards by means of tension of the spring, so that the protective cylinder can move to the outside of the electromagnetic column separated from the iron cylinder, and the protective cylinder can shield and protect the outside of the electromagnetic column to be used.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator car door locks, more specifically to an elevator car door lock. Background Art

[0002] The elevator car is a box-shaped space used by the elevator to carry and transport people and materials. The elevator car is generally composed of the main parts such as the car bottom, car wall, car roof, and car door. It is the car body part used by the elevator to carry passengers or goods and other loads. The elevator is also equipped with a car door mechanical lock device to prevent the door from being illegally opened during operation, thereby avoiding possible dangers.

[0003] As shown in the application document with the prior art publication number CN218231472U, it includes a cabin door, a locking mechanism is arranged at the bottom of the cabin door, a clamping mechanism is arranged at the top of the cabin door, the locking mechanism includes a U-shaped frame, the U-shaped frame is fixedly mounted on the lower surface of the cabin door, an inclined plate is movably mounted in the U-shaped frame, an arc-shaped slot is opened on the lower surface of the cabin door, the inclined plate is movably clamped in the arc-shaped slot, a circular sleeve is fixedly mounted on the end of the inclined plate, a rotating shaft is movably mounted in the circular sleeve, a rectangular extrusion plate is fixedly mounted on the U-shaped frame, the lower surface of the rectangular extrusion plate is fitted with the upper surface of the inclined plate, the technical scheme is controlled by the up and down movement of the inclined plate and the movement of the cabin door, and as long as the cabin door can be moved, the inclined plate can move up and down normally, which greatly ensures the working stability of the equipment and the equipment is not easy to be damaged.

[0004] However, the inclined plate in the above technical solution will wear out during the reciprocating contact, which will affect the locking effect and locking stability of the inclined plate, which shows that the technical solution has certain limitations. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an elevator door lock, which can realize the locking and fixing of the two elevator doors through the nested connection of the energized electromagnetic column and the iron cylinder, so as to prevent the two elevator doors from loosening and opening. When the electromagnetic column is powered off and separated from the iron cylinder, the smoothness of the separation of the two elevator doors can be guaranteed, and the locking method has high stability, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator car door lock, comprising a lock catch assembly installed on an elevator assembly for locking and fixing;

[0007] The lock assembly includes an installation column and a fixed column arranged under the elevator assembly, an electromagnetic column is installed on the side of the installation column close to the fixed column, an iron cylinder is sleeved on the outside of one end of the electromagnetic column close to the fixed column, and the iron cylinder is installed on the side of the fixed column close to the electromagnetic column.

[0008] In a preferred embodiment, a protective tube is provided on the outside of one end of the electromagnetic column close to the mounting column, and the end of the protective tube away from the electromagnetic column is sleeved on the outside of the mounting column; the end of the protective tube away from the mounting column is in contact with the iron tube. By setting the protective tube, the outside of the electromagnetic column separated from the iron tube can be shielded and protected to prevent dust and other impurities from adhering to the outside of the electromagnetic column and affecting the connection stability between the electromagnetic column and the iron tube.

[0009] In a preferred embodiment, a plurality of spaced-apart installation grooves are formed through the outside of one end of the installation column close to the electromagnetic column, a telescopic rod is installed inside each installation groove, and the end of the telescopic rod away from the installation groove is fixed to the inner wall of the protective tube, and a spring is sleeved on the outside of one end of the telescopic rod close to the protective tube, and the tension of the spring pushes the outside of the protective tube, so that when the iron tube is separated from the electromagnetic column, the protective tube can be prompted to move to the outside of the electromagnetic column for shielding and protection, thereby effectively ensuring the performance of the electromagnetic column.

[0010] In a preferred embodiment, a mounting piece is sleeved on the outer side of one end of the mounting column away from the electromagnetic column. Through the arrangement of the mounting piece, the staff can install the mounting column to the bottom of one of the elevator doors, so that the electromagnetic column can move with the elevator door.

[0011] In a preferred embodiment, a fixing piece is sleeved on the outer side of one end of the fixing column away from the iron cylinder. The connection between the fixing piece and the elevator door can ensure the stability of the fixing column, thereby ensuring the connection stability between the iron cylinder and the electromagnetic column.

[0012] In a preferred embodiment, the length of the protective tube is greater than the length of the mounting groove. By setting the length of the protective tube to be greater than the length of the mounting groove, when the protective tube is completely mounted on the outside of the electromagnetic column, part of the protective tube can still shield and protect the mounting groove, thereby preventing dust from falling into the mounting groove and contaminating the spring and the telescopic rod.

[0013] In a preferred embodiment, the elevator assembly includes two elevator doors and a guide rod, and the two elevator doors are both sleeved on the outside of the guide rod; the fixing column and the mounting column are respectively arranged at the bottom of the two elevator doors, the top of the mounting piece is fixed to the bottom of one of the elevator doors, and the top of the fixing piece is fixed to the bottom of the other elevator door. By setting the guide rod, the movement stability of the two elevator doors can be ensured.

[0014] Technical effects and advantages of the utility model:

[0015] 1. Through the nested connection of the energized electromagnetic column and the iron cylinder, the two elevator doors can be locked and fixed to prevent the two elevator doors from loosening and opening. When the electromagnetic column is powered off and separated from the iron cylinder, the two elevator doors can be separated smoothly, and the locking method is highly stable;

[0016] 2. The protective tube is pushed outward by the tension of the spring, so that the protective tube can be moved to the outside of the electromagnetic column separated from the iron cylinder, so that the protective tube can shield and protect the outside of the electromagnetic column to be used, avoiding the adhesion of dust and other impurities and affecting the subsequent connection stability with the iron cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is the front view of the iron cylinder of the utility model;

[0019] Figure 3 It is a cross-sectional view of the iron cylinder of the utility model;

[0020] Figure 4 This is the front view of the installation column of the utility model;

[0021] Figure 5 It is a cross-sectional view of the protective tube of the present utility model.

[0022] The accompanying drawings are marked as follows: 1. mounting column; 2. fixing column; 3. electromagnetic column; 4. iron cylinder; 5. protective cylinder; 6. mounting groove; 7. telescopic rod; 8. spring; 9. mounting piece; 10. fixing piece; 11. elevator door; 12. guide rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Refer to the instruction manual Figure 1-5 , the utility model provides an elevator car door lock, including a lock catch assembly installed on an elevator assembly for locking and fixing;

[0025] like Figure 1-4 As shown, the lock assembly includes a mounting column 1 and a fixed column 2 arranged under the elevator assembly, an electromagnetic column 3 is installed on the side of the mounting column 1 close to the fixed column 2, an iron cylinder 4 is sleeved on the outer side of the end of the electromagnetic column 3 close to the fixed column 2, and the iron cylinder 4 is installed on the side of the fixed column 2 close to the electromagnetic column 3.

[0026] like Figure 2 , 3As shown in Figure 5, a protective tube 5 is sleeved on the outside of one end of the electromagnetic column 3 close to the mounting column 1, and the end of the protective tube 5 away from the electromagnetic column 3 is sleeved on the outside of the mounting column 1; the end of the protective tube 5 away from the mounting column 1 is in contact with the iron tube 4. Through the provision of the protective tube 5, the outside of the electromagnetic column 3 separated from the iron tube 4 can be shielded and protected to prevent dust and other impurities from adhering to the outside of the electromagnetic column 3 and affecting the connection stability between the electromagnetic column 3 and the iron tube 4.

[0027] like Figure 3-5 As shown, a plurality of installation grooves 6 are provided at intervals on the outside of one end of the installation column 1 close to the electromagnetic column 3, and a telescopic rod 7 is installed inside each installation groove 6. The end of the telescopic rod 7 away from the installation groove 6 is fixed to the inner wall of the protective tube 5, and a spring 8 is sleeved on the outside of the end of the telescopic rod 7 close to the protective tube 5. The tension of the spring 8 pushes the outside of the protective tube 5, so that when the iron tube 4 is separated from the electromagnetic column 3, the protective tube 5 can be moved to the outside of the electromagnetic column 3 for shielding and protection, thereby effectively ensuring the performance of the electromagnetic column 3.

[0028] like Figure 2 and 3 As shown, a mounting piece 9 is sleeved on the outside of one end of the mounting column 1 away from the electromagnetic column 3. Through the setting of the mounting piece 9, the staff can install the mounting column 1 to the bottom of one of the elevator doors 11, so that the electromagnetic column 3 can move with the elevator door 11. A fixing piece 10 is sleeved on the outside of one end of the fixed column 2 away from the iron cylinder 4. Through the connection between the fixing piece 10 and the elevator door 11, the stability of the fixed column 2 can be ensured, thereby ensuring the connection stability between the iron cylinder 4 and the electromagnetic column 3.

[0029] like Figure 3 As shown, the length of the protective tube 5 is greater than the length of the mounting groove 6. By setting the length of the protective tube 5 to be greater than the length of the mounting groove 6, when the protective tube 5 is completely sleeved on the outside of the electromagnetic column 3, part of the protective tube 5 can still shield and protect the mounting groove 6, thereby preventing dust from falling into the mounting groove 6 and contaminating the spring 8 and the telescopic rod 7.

[0030] like Figure 1 As shown, the elevator assembly includes two elevator doors 11 and a guide rod 12, and the two elevator doors 11 are both sleeved on the outside of the guide rod 12; the fixing column 2 and the mounting column 1 are respectively arranged at the bottom of the two elevator doors 11, the top of the mounting member 9 is fixed to the bottom of one of the elevator doors 11, and the top of the fixing member 10 is fixed to the bottom of the other elevator door 11. By setting the guide rod 12, the movement stability of the two elevator doors 11 can be guaranteed.

[0031] When the two elevator doors 11 move inward at the same time and fit together, the iron cylinder 4 on the fixing column 2 is nested and connected with the electromagnetic column 3 on the mounting column 1, and then the electromagnetic column 3 and the iron cylinder 4 are fixed together with the aid of the energized electromagnetic column 3, so that the two elevator doors 11 can be locked and fixed to prevent the two elevator doors 11 from loosening and opening. When the two elevator doors 11 move outward and separate at the same time, the electromagnetic column 3 is powered off and automatically separated from the iron cylinder 4, so that the smoothness of the separation of the two elevator doors 11 can be ensured, and the locking method has high stability.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An elevator door lock, characterized in that: It includes a lock assembly installed on the elevator assembly for locking and fixing; The lock assembly comprises a mounting column (1) and a fixed column (2) arranged under the elevator assembly, an electromagnetic column (3) is installed on the side of the mounting column (1) close to the fixed column (2), an iron cylinder (4) is sleeved on the outside of one end of the electromagnetic column (3) close to the fixed column (2), and the iron cylinder (4) is installed on the side of the fixed column (2) close to the electromagnetic column (3).

2. An elevator door lock according to claim 1, characterized in that: A protective tube (5) is sleeved on the outside of one end of the electromagnetic column (3) close to the mounting column (1), and an end of the protective tube (5) away from the electromagnetic column (3) is sleeved on the outside of the mounting column (1); One end of the protective tube (5) away from the mounting column (1) is in contact with the iron tube (4).

3. An elevator door lock according to claim 2, characterized in that: A plurality of installation slots (6) arranged at intervals are formed through the outside of one end of the installation column (1) close to the electromagnetic column (3), a telescopic rod (7) is installed inside each installation slot (6), an end of the telescopic rod (7) away from the installation slot (6) is fixed to the inner wall of the protective tube (5), and a spring (8) is sleeved on the outside of one end of the telescopic rod (7) close to the protective tube (5).

4. An elevator door lock according to claim 1, characterized in that: A mounting piece (9) is sleeved on the outside of one end of the mounting column (1) away from the electromagnetic column (3).

5. An elevator door lock according to claim 4, characterized in that: A fixing piece (10) is sleeved on the outside of one end of the fixing column (2) away from the iron cylinder (4).

6. An elevator door lock according to claim 3, characterized in that: The length of the protective tube (5) is greater than the length of the mounting groove (6).

7. An elevator door lock according to claim 5, characterized in that: The elevator assembly comprises two elevator doors (11) and a guide rod (12), wherein the two elevator doors (11) are sleeved outside the guide rod (12); The fixing column (2) and the mounting column (1) are respectively arranged at the bottom of two elevator doors (11), the top of the mounting member (9) is fixed to the bottom of one of the elevator doors (11), and the top of the fixing member (10) is fixed to the bottom of the other elevator door (11).

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