Safety maintenance device for elevator

Abstract

The utility model belongs to the field of elevators, and discloses a safety maintenance device for an elevator, which comprises a safety maintenance plate, an operating mechanism, an upper limit stopper and a lower limit stopper, the upper limit stopper, the safety maintenance plate and the lower limit stopper are sequentially arranged on a guide rail from top to bottom, and the operating mechanism is arranged on a car frame and comprises an operating rod and a support component. And the operating rod is transversely matched with the bracket assembly in a sliding manner. According to the utility model, the upper limiting stopper and the lower limiting stopper are arranged and are matched with each other through the operating rod, so that the stroke protection of the elevator during operation and maintenance is increased, and the control switch assembly can give corresponding warnings when the elevator is in different states, so that the safety of the elevator is improved. And smooth maintenance work is ensured.

Description

Technical Field

[0001] The utility model relates to the field of elevators, in particular to a safety inspection and maintenance device for elevators. Background Art

[0002] When the elevator host is under maintenance, a safety inspection device is required, which includes a safety inspection panel, an operating lever, a control switch and other structures. The safety inspection panel is installed on the guide rail, and the operating lever, control switch and other structures are installed on the car frame. When the elevator host needs to be inspected, the operating lever is inserted into the safety inspection panel to prevent the elevator car from moving up and down, and the control switch will issue a safety warning that the elevator is under maintenance. The problem is that when the elevator is under maintenance, the existing safety inspection device lacks travel protection for the elevator. Utility Model Content

[0003] The purpose of the utility model is to provide a safety inspection device for an elevator to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A safety inspection device for an elevator, comprising a safety inspection panel, an operating mechanism, an upper limit stopper and a lower limit stopper, wherein the upper limit stopper, the safety inspection panel and the lower limit stopper are arranged on a guide rail in order from top to bottom, and the operating mechanism is arranged on a car frame, comprising an operating rod and a bracket assembly, wherein the operating rod is laterally slidably matched on the bracket assembly;

[0006] The operating mechanism is configured as follows: the operating rod has a normal operating position, an operating maintenance position and a main engine maintenance position in descending order according to the length of the operating rod extending toward one side of the guide rail;

[0007] When the operating lever is in the normal operating position, the elevator operates normally, and the operating lever will not touch the safety inspection plate, the upper limit stopper and the lower limit stopper when the elevator is running;

[0008] When the operating lever is in the operation and maintenance position, the elevator moves upward to the maximum stroke, and the operating lever abuts against the upper limit stopper; when the elevator moves downward to the maximum stroke, the operating lever abuts against the lower limit stopper;

[0009] When the operating lever is in the main engine maintenance position, the operating lever is inserted into the safety maintenance panel and the elevator cannot run.

[0010] Furthermore, the bracket assembly includes a suspension bracket seat and a limit seat, the operating rod is slidably inserted into the suspension bracket seat, the limit seat has a transverse slide groove and three limit grooves respectively connected to the lower ends of the transverse slide groove, the operating rod has a lever for cooperating with the limit groove, and the operating rod controls the extension length of the operating rod toward one side of the guide rail by adjusting the lever to cooperate with different limit grooves by sliding transversely on the suspension bracket seat.

[0011] Furthermore, the safety inspection plate is provided with an inspection hole, and when the operating lever is in the mainframe inspection position, it is plugged and matched with the inspection hole on the safety inspection plate.

[0012] Furthermore, the operating mechanism further comprises a control switch assembly, and the control switch assembly contacts the side surface of the operating rod;

[0013] When the operating lever is in the normal operating position, the control switch assembly gives a normal operating signal of the elevator;

[0014] When the operating lever is in the operation and maintenance position, the control switch assembly gives an elevator operation and maintenance signal;

[0015] When the operating lever is in the main engine maintenance position, the control switch assembly gives the elevator main engine maintenance signal.

[0016] Further, the control switch assembly comprises a first control switch and a second control switch arranged front and back, the operating rod comprises an operating rod contact section for contacting the control switch assembly, and the operating rod contact section comprises a first groove and a second groove arranged front and back;

[0017] When the operating rod is in the normal operating position, the first control switch contacts the side surface of the main body of the contact section of the operating rod, and the first control switch is in a closed state; the second control switch cooperates with the first groove, and the first control switch is in a released state;

[0018] When the operating lever is in the operation and maintenance position, the first control switch is matched with the first groove, the second control switch is matched with the second groove, and the first control switch and the second control switch are both in a released state;

[0019] When the operating lever is in the mainframe maintenance position, the first control switch cooperates with the second groove, the first control switch is in a released state, and the second control switch contacts the main body side of the operating lever contact section, and the second control switch is in a closed state.

[0020] Furthermore, the first groove and the second groove are both annular grooves.

[0021] Furthermore, the control switch assembly is installed on the car frame through a switch mounting seat.

[0022] Furthermore, the operating mechanism is arranged on the upper beam.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is provided with an upper limit stopper and a lower limit stopper, and cooperates with the upper limit stopper and the lower limit stopper through an operating lever, thereby increasing the stroke protection during elevator operation and maintenance, and the control switch assembly of the utility model can give corresponding warnings when the elevator is in different states, thereby ensuring the smooth progress of the maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the schematic diagrams of the structure of the utility model.

[0025] Figure 2 This is the second schematic diagram of the structure of the utility model, in which the operating lever is located in the normal operating position.

[0026] Figure 3 This is the third schematic diagram of the structure of the utility model, in which the operating lever is located at the operation and maintenance position.

[0027] Figure 4 This is the fourth schematic diagram of the structure of the utility model, in which the operating lever is located at the main engine maintenance position.

[0028] In the figure: safety inspection plate 1, inspection hole 100, upper limit stopper 2, lower limit stopper 3, operating lever 4, lever 400, first groove 401, second groove 402, suspension bracket seat 5, limit seat 6, transverse slide groove 600, limit groove 601, first control switch 7, second control switch 8, switch mounting seat 9, guide rail 10, upper beam 11. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-Figure 4 A safety inspection device for an elevator includes a safety inspection panel 1, an operating mechanism, an upper limit stopper 2 and a lower limit stopper 3. The safety inspection panel 1, the upper limit stopper 2 and the lower limit stopper 3 are respectively installed on the guide rail 10 from top to bottom through a pressure plate. The operating mechanism includes an operating rod 4 and a bracket assembly. The bracket assembly is installed on an upper beam 11. The operating rod 4 is laterally slidably matched on the bracket assembly. The upper limit stopper 2 and the lower limit stopper 3 are installed on the guide rail 10 through a pressure plate.

[0031] The operating rod 4 has a normal operating position, an operating inspection position and a main engine inspection position in order from small to large according to the length of the operating rod 4 extending toward one side of the guide rail 10. When the operating rod 4 is in the normal operating position, the elevator operates normally, and the operating rod 4 does not touch the safety inspection plate 1, the upper limit stopper 2 and the lower limit stopper 3 when the elevator is running. When the operating rod 4 is in the operating inspection position, the elevator runs upward to the maximum stroke, and the operating rod 4 abuts against the upper limit stopper 2. When the elevator runs downward to the maximum stroke, the operating rod 4 abuts against the lower limit stopper 3. When the operating rod 4 is in the main engine inspection position, the operating rod 4 is inserted into the safety inspection plate 1, and the elevator cannot run.

[0032] Continue reading Figure 1-Figure 4 In one embodiment of the utility model, the bracket assembly includes a suspension bracket seat 5 and a limit seat 6. The suspension bracket seat 5 is a U-shaped plate structure, which is installed on the upper beam 11, with an opening facing outward. Both sides of the suspension bracket seat 5 have sockets that are slidably plugged with the operating rod 4. The limit seat 6 is installed in the opening of the suspension bracket seat 5. The limit seat 6 has a transverse slide 600 and three limit slots 601 respectively connected to the lower end of the transverse slide 600. The three limit slots 601 are arranged at intervals along the front-to-back direction. The operating rod 4 has a lever 400 for matching with the limit slot 601. The lever 400 is perpendicular to the main body of the operating rod 4. The operating rod 4 adjusts the lever 400 to match with different limit slots 601 by sliding horizontally on the suspension bracket seat 5, thereby controlling the extension length of the operating rod 4 toward the side of the guide rail 10. Specifically, when the lever 400 matches with the limit slot 601 farthest from the guide rail 10, the operating rod 4 is in a normal operating position. When the lever 400 is matched with the middle limiting groove 601, the operating rod 4 is in the operation and maintenance position. When the lever 400 is matched with the limiting groove 601 closest to the guide rail 10, the operating rod 4 is in the main machine maintenance position.

[0033] Continue reading Figure 1 In one embodiment of the utility model, the safety access panel 1 has an access hole 100 , and when the operating lever 4 is in the host maintenance position, it is plugged into and matched with the access hole 100 on the safety access panel 1 .

[0034] Continue reading Figure 1-Figure 4 In one embodiment of the utility model, the operating mechanism further comprises a control switch assembly, and the control switch assembly contacts the side of the operating rod 4. When the operating rod 4 is in the normal operating position, the control switch assembly gives the elevator normal operating signal. When the operating rod 4 is in the operation and maintenance position, the control switch assembly gives the elevator operation and maintenance signal. When the operating rod 4 is in the operation and maintenance position, the control switch assembly gives the elevator host maintenance signal.

[0035] Continue reading Figure 1-Figure 4In one embodiment of the utility model, the control switch assembly is installed on the upper beam 11 through the switch mounting seat 9, which includes a first control switch 7 and a second control switch 8 arranged in front and behind. The operating rod 4 has an operating rod contact section for contacting the control switch assembly. The main body of the operating rod contact section is a round rod structure with a uniform outer diameter. The operating rod contact section has a first groove 401 and a second groove 402 arranged in front and behind. The first groove 401 and the second groove 402 are preferably annular grooves.

[0036] When the operating rod 4 is in the normal operating position, the first control switch 7 contacts the side surface of the main body of the operating rod contact section, the first control switch 7 is in a closed state, the second control switch 8 cooperates with the first groove 401, and the first control switch 7 is in a released state, which is equivalent to the first control switch 7 and the second control switch 8 giving a "10" signal, indicating that the elevator is in a normal operating state.

[0037] When the operating lever 4 is in the operation and maintenance position, the first control switch 7 cooperates with the first groove 401, and the second control switch 8 cooperates with the second groove 402. The first control switch 7 and the second control switch 8 are both in a released state, which is equivalent to the first control switch 7 and the second control switch 8 giving a "00" signal, indicating that the elevator is in an operation and maintenance state.

[0038] When the operating lever 4 is in the main engine maintenance position, the first control switch 7 cooperates with the second groove 402, the first control switch 7 is in a released state, the second control switch 8 touches the main body side of the operating lever contact section, and the second control switch 8 is in a closed state, which is equivalent to the first control switch 7 and the second control switch 8 giving a "01" signal, indicating that the elevator is in the main engine maintenance state.

[0039] Operation instructions of this utility model:

[0040] like Figure 2 As shown, when the elevator is operating normally, the lever 400 is matched with the limit groove 601 farthest from the guide rail 10. At this time, the operating rod 4 is in the normal operating position, and it is a certain distance away from the safety inspection plate 1, the upper limit stopper 2, and the lower limit stopper 3. When the elevator moves up and down, the operating rod 4 will not touch the safety inspection plate 1, the upper limit stopper 2, and the lower limit stopper 3. The first control switch 7 and the second control switch 8 give a "10" signal, indicating that the elevator is in normal operating state.

[0041] like Figure 3As shown, when the elevator is running for maintenance, the lever 400 is matched with the middle limit groove 601. At this time, the operating lever 4 is in the running and maintenance position. It is a distance away from the installation maintenance plate 1, but it is already within the coverage of the upper limit stopper 2 and the lower limit stopper 3. When the elevator runs upward to the maximum stroke, the operating lever 4 abuts against the upper limit stopper 2. When the elevator runs downward to the maximum stroke, the operating lever 4 abuts against the lower limit stopper 3, thereby limiting the stroke of the elevator during running and maintenance. The first control switch 7 and the second control switch 8 give a "00" signal, indicating that the elevator is in the running and maintenance state.

[0042] like Figure 4 As shown, when the elevator main engine is under maintenance, the lever 400 is matched with the limit slot 601 closest to the guide rail 10. At this time, the operating lever 4 is in the main engine maintenance position, and it is inserted into the inspection hole 100 of the safety inspection plate 1, so that the elevator cannot run up and down, and the first control switch 7 and the second control switch 8 give a "01" signal, indicating that the elevator is in the main engine maintenance state.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety inspection device for an elevator, characterized in that: The vehicle comprises a safety inspection panel (1), an operating mechanism, an upper limit stopper (2) and a lower limit stopper (3), wherein the upper limit stopper (2), the safety inspection panel (1) and the lower limit stopper (3) are arranged on a guide rail (10) in sequence from top to bottom, and the operating mechanism is arranged on a car frame and comprises an operating rod (4) and a bracket assembly, wherein the operating rod (4) is laterally slidably engaged with the bracket assembly; The operating mechanism is configured such that the operating rod (4) has a normal operating position, an operating maintenance position and a main engine maintenance position in descending order according to the length of the operating rod (4) extending from one side of the guide rail (10); When the operating rod (4) is in the normal operating position, the elevator operates normally, and the operating rod (4) will not touch the safety inspection plate (1), the upper limit stopper (2) and the lower limit stopper (3) when the elevator is running; When the operating lever (4) is in the operation and maintenance position, the elevator moves upward to the maximum stroke, and the operating lever (4) abuts against the upper limit stopper (2); and when the elevator moves downward to the maximum stroke, the operating lever (4) abuts against the lower limit stopper (3); When the operating rod (4) is in the main engine maintenance position, the operating rod (4) is inserted into the safety maintenance plate (1), and the elevator cannot operate.

2. The elevator safety inspection device according to claim 1, characterized in that: The support assembly comprises a suspension support seat (5) and a limit seat (6), the operating rod (4) is slidably inserted into the suspension support seat (5), the limit seat (6) has a transverse slide groove (600) and three limit grooves (601) respectively connected to the lower ends of the transverse slide groove (600), the operating rod (4) has a lever (400) for cooperating with the limit groove (601), and the operating rod (4) is adjusted to cooperate with different limit grooves (601) by sliding transversely on the suspension support seat (5), thereby controlling the extension length of the operating rod (4) toward one side of the guide rail (10).

3. The elevator safety inspection device according to claim 1, characterized in that: The safety inspection plate (1) is provided with an inspection hole (100), and when the operating rod (4) is in the mainframe inspection position, it is plugged into and matched with the inspection hole (100) on the safety inspection plate (1).

4. The elevator safety inspection device according to claim 1, characterized in that: The operating mechanism further comprises a control switch assembly, wherein the control switch assembly contacts the side surface of the operating rod (4); When the operating lever (4) is in the normal operating position, the control switch assembly gives a normal operating signal of the elevator; When the operating lever (4) is in the operation and maintenance position, the control switch assembly gives an elevator operation and maintenance signal; When the operating lever (4) is in the main engine maintenance position, the control switch assembly gives an elevator main engine maintenance signal.

5. The elevator safety inspection device according to claim 4, characterized in that: The control switch assembly comprises a first control switch (7) and a second control switch (8) arranged front and rear, the operating rod (4) having an operating rod contact section for contacting the control switch assembly, the operating rod contact section having a first groove (401) and a second groove (402) arranged front and rear; When the operating rod (4) is in the normal operating position, the first control switch (7) contacts the side surface of the main body of the operating rod contact section, the first control switch (7) is in a closed state, the second control switch (8) cooperates with the first groove (401), and the first control switch (7) is in a released state; When the operating lever (4) is in the operation and maintenance position, the first control switch (7) cooperates with the first groove (401), the second control switch (8) cooperates with the second groove (402), and both the first control switch (7) and the second control switch (8) are in a released state; When the operating rod (4) is in the mainframe maintenance position, the first control switch (7) cooperates with the second groove (402), the first control switch (7) is in a released state, the second control switch (8) contacts the main body side surface of the operating rod contact section, and the second control switch (8) is in a closed state.

6. The elevator safety inspection device according to claim 5, characterized in that: The first groove (401) and the second groove (402) are both annular grooves.

7. The elevator safety inspection device according to claim 4, characterized in that: The control switch assembly is mounted on the car frame via a switch mounting seat (9).

8. The elevator safety inspection device according to claim 1, characterized in that: The operating mechanism is arranged on the upper beam (11).

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