A test tool for testing the durability of elevator door blades

Abstract

The invention discloses a test tool for testing the durability of an elevator door knife, and belongs to the technical field of elevator component testing equipment. The main points of the technical solution are: comprising a base, characterized in that: the base is used to place the elevator door knife, and a driving member 1 and a driving member 2 are arranged on the base, the driving member 1 is used to drive the unlocking block of the elevator door knife to rotate and pull the tension spring, and the driving member 2 is used to drive the transmission block of the elevator door knife to move. When the driving member 1 drives the unlocking block of the elevator door knife to rotate and pull the tension spring, the driving member 2 drives the transmission block of the elevator door knife to move, so that the transmission block slides and squeezes the reset spring and drives the two knife arms to approach each other. The test equipment can efficiently test the durability of the elevator door knife, and then judge whether the elevator door knife is qualified.

Description

Technical Field

[0001] The invention belongs to the technical field of elevator component testing equipment, and in particular relates to a testing tool for testing the durability of an elevator door knife. Background Art

[0002] At present, with the rapid advancement of science and technology and the continuous increase in building height, elevators have become an indispensable means of transportation for going up and down stairs in daily life. Their safety is directly related to the vital interests of passengers, which has prompted society to put forward more stringent requirements on the performance and safety standards of elevators. The elevator door knife, as a key component for controlling the opening and closing of elevator floor doors, is installed on the elevator car door and plays an important role in driving the synchronous opening and closing of the floor doors. Its shape is usually long and narrow, hence the name "door knife".

[0003] In order to ensure the safety and reliability of elevators during operation and meet the established service life and operating frequency standards, the strength and durability of various elevator components are crucial, especially the door lock and door knife components of the elevator door machine, which are responsible for the opening and closing operations of the elevator floor doors. Their durability must be verified through rigorous simulation tests to ensure the safety and stability of the entire elevator use process. Therefore, a test device that can efficiently test the durability of elevator door knives is urgently needed. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to propose a test tool for testing the durability of an elevator door knife. The technical problem to be solved by the present invention is: how to efficiently test the durability of an elevator door knife.

[0005] The above-mentioned technical purpose of the present invention can be achieved through the following technical scheme: a test tool for testing the durability of an elevator door knife, comprising a base, the base is used to place the elevator door knife, and a driving member 1 and a driving member 2 are arranged on the base, the driving member 1 is used to drive the unlocking block of the elevator door knife to rotate and pull the tension spring, and the driving member 2 is used to drive the transmission block of the elevator door knife to move. When the driving member 1 drives the unlocking block of the elevator door knife to rotate and pulls the corresponding tension spring, the driving member 2 drives the transmission block of the elevator door knife to move, so that the transmission block slides to squeeze the reset spring and drive the two knife arms to approach each other.

[0006] In the above-mentioned test fixture for testing the durability of an elevator door knife, the driving member 1 includes a cylinder 1, and the output end of the cylinder 1 is aligned with the side wall of the unlocking block. When the output end of the cylinder 1 is extended, the output end of the cylinder 1 can push the unlocking block to rotate, and the driving member 2 includes a cylinder 2, and the output end of the cylinder 2 is aligned with the side wall of the transmission block. When the output end of the cylinder 2 is extended, the output end of the cylinder 2 can push the transmission block to move.

[0007] In the above-mentioned test tool for testing the durability of the elevator door knife, the output end of the cylinder two is connected to the lock hook assembly of the elevator door knife through a connecting piece. When the output end of the cylinder two is extended, the output end of the cylinder two can drive the lock hook assembly of the elevator door knife to rotate through the connecting piece, and the lock hook assembly of the elevator door knife pulls the corresponding tension spring.

[0008] In the above-mentioned test fixture for testing the durability of an elevator door knife, a first shock absorbing head is provided at the output end of the first cylinder, and a second shock absorbing head is provided at the output end of the second cylinder.

[0009] In the above-mentioned test fixture for testing the durability of elevator door knives, support base 1 and support base 2 are detachably connected to the base, and driving member 1 and driving member 2 are respectively installed on support base 1 and support base 2.

[0010] In the above-mentioned test tool for testing the durability of an elevator door knife, a strip hole one is opened on the support seat one, a mounting hole one is opened on the base corresponding to the strip hole one, a bolt one is passed through the strip hole one, and the bolt one is threadedly connected to the mounting hole one, a strip hole two is opened on the support seat two, a mounting hole two is opened on the base corresponding to the strip hole two, a bolt two is passed through the strip hole two, and the bolt two is threadedly connected to the mounting hole two.

[0011] In the above-mentioned test tool for testing the durability of an elevator door knife, the connecting member includes a connecting wire, one end of the connecting wire is wound around the output end of the cylinder 2, and the other end of the connecting wire is wound around the lock hook assembly.

[0012] In the above-mentioned test tool for testing the durability of the elevator door knife, a plurality of positioning protrusions are arranged on the base, a plurality of the positioning protrusions are matched with the through holes on the elevator door knife, and a plurality of the positioning protrusions pass through the corresponding through holes on the elevator door knife.

[0013] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0014] During the test, after cylinder 1 drives the unlocking block of the elevator door knife to rotate and pulls the tension spring, cylinder 2 drives the transmission block of the elevator door knife to move, so that the transmission block slides to squeeze the reset spring and drive the two knife arms closer to each other. The above actions are repeated to simulate the working state of the elevator door knife, so as to efficiently test the durability of the elevator door knife and then determine whether the elevator door knife is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment;

[0016] Figure 2It is a partial structural schematic diagram of an embodiment;

[0017] Figure 3 It is a schematic diagram of the structure of the elevator door knife in the embodiment.

[0018] Figure numerals: 1. base; 2. cylinder one; 3. cylinder two; 4. shock absorber head one; 5. shock absorber head two; 6. support seat one; 7. support seat two; 8. strip hole one; 9. strip hole two; 10. bolt one; 11. bolt two; 12. mounting hole one; 13. mounting hole two; 14. connecting line; 15. positioning protrusion; 16. transmission block; 17. knife arm; 18. unlocking block; 19. lock hook assembly. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] A test fixture for testing the durability of elevator door blades, such as Figure 1 to Figure 2 As shown, it includes a base 1, and the base 1 is used to place the elevator door knife.

[0021] It should be noted that a plurality of positioning protrusions 15 are provided on the base 1, and a plurality of positioning protrusions 15 are adapted to the through holes on the elevator door knife, and a plurality of positioning protrusions 15 pass through the corresponding through holes on the elevator door knife. The positioning protrusions 15 cooperate with the through holes on the elevator door knife, thereby ensuring the stability of the elevator door knife placed on the base 1.

[0022] Furthermore, by threading a fastener on the positioning protrusion 15, the elevator door blade is pressed onto the base 1 by the fastener, and the fastener can be a bolt.

[0023] A driving member 1 and a driving member 2 are provided on the base 1, and a support seat 1 6 and a support seat 2 7 are detachably connected to the base 1. The support seat 1 6 and the support seat 2 7 are both in an "L" shape. The support seat 1 6 and the support seat 2 7 are respectively located on both sides of the base 1, and the driving member 1 and the driving member 2 are respectively installed on the support seat 1 6 and the support seat 2 7.

[0024] A strip hole 18 is provided on the support seat 6, and a mounting hole 12 is provided on the base 1 corresponding to the strip hole 8. A bolt 10 is passed through the strip hole 8, and the bolt 10 is threadedly connected to the mounting hole 12. It should be noted that the bolt 10 can be loosened by turning it. At this time, the position of the support seat 6 can be adjusted along the length direction of the strip hole 8, thereby changing the position of the driving member 1, and finally the bolt 10 can be tightened by turning it.

[0025] A strip hole 29 is provided on the support seat 27, and a mounting hole 213 is provided on the base 1 corresponding to the strip hole 29. A bolt 21 is passed through the strip hole 29, and the bolt 21 is threadedly connected to the mounting hole 213. It should be noted that by loosening the bolt 211, the position of the support seat 27 can be adjusted along the length direction of the strip hole 219, thereby changing the position of the driving member 2, and finally tightening it by turning the bolt 211.

[0026] The driving member 1 is used to drive the unlocking block 18 of the elevator door knife to rotate and pull the corresponding tension spring. Preferably, the driving member 1 includes a cylinder 2. When the output end of the cylinder 2 is extended, the output end of the cylinder 2 can push the unlocking block 18 to rotate. Specifically, the output end of the cylinder 2 is aligned with the side wall of the unlocking block 18. Therefore, when the output end of the cylinder 2 is extended, the output end of the cylinder 2 abuts against the side wall of the unlocking block 18, thereby pushing the unlocking block 18 to rotate. At this time, the unlocking block 18 pulls the corresponding spring. After the output end of the cylinder 2 retracts, the elastic force of the tension spring drives the unlocking block 18 to rotate and reset. As another solution, the driving member 1 can also use an electric cylinder or a screw linear module.

[0027] The driving component 2 is used to drive the transmission block 16 of the elevator door knife to move. Preferably, the driving component 2 includes a cylinder 2 3. When the output end of the cylinder 2 3 is extended, the output end of the cylinder 2 3 can push the transmission block 16 to move. Specifically, the output end of the cylinder 2 3 is aligned with the side wall of the transmission block 16. Therefore, when the output end of the cylinder 2 3 is extended, the output end of the cylinder 2 3 abuts against the side wall of the transmission block 16, thereby pushing the transmission block 16 to move. The elevator door knife is provided with a guide rod for the transmission block 16 to slide. As the transmission block 16 slides, the transmission block 16 squeezes the reset spring, and the transmission block 16 drives the two knife arms 17 to approach each other. After the output end of the cylinder 2 3 retracts, the elastic force of the reset spring pushes the transmission block 16 to move and reset. As other solutions, the driving component 2 can also use an electric cylinder or a screw linear module.

[0028] The output direction of cylinder 1 2 is opposite to the output direction of cylinder 2 3 , the length direction of strip hole 1 8 is the same as the output direction of cylinder 1 2 , and the length direction of strip hole 2 9 is the same as the output direction of cylinder 2 3 . Therefore, by adjusting the position of support seat 1 6 along the length direction of strip hole 1 8 , the distance between the output end of cylinder 2 and unlocking block 18 can be changed, and by adjusting the position of support seat 2 7 along the length direction of strip hole 2 9 , the distance between the output end of cylinder 2 3 and transmission block 16 can be changed.

[0029] It should be noted that how the transmission block 16 drives the two knife arms 17 to move closer to or away from each other is a prior art, and its specific structure will not be described in detail.

[0030] The output end of cylinder 1 2 is provided with a shock absorbing head 1 4, and the output end of cylinder 1 2 is provided with a shock absorbing head 2 5. Preferably, the shock absorbing head 1 4 and the shock absorbing head 2 5 are both made of rubber material to avoid damage to the unlocking block 18 and the transmission block 16 when they come into contact with each other, thereby improving the service life.

[0031] The output end of cylinder 2 3 is connected to the lock hook assembly 19 of the elevator door knife through a connecting piece. When the output end of cylinder 2 3 is extended, the output end of cylinder 2 3 can drive the lock hook assembly 19 of the elevator door knife to rotate through the connecting piece, and the lock hook assembly 19 of the elevator door knife pulls the corresponding tension spring.

[0032] Specifically, the connecting member includes a connecting wire 14, one end of the connecting wire 14 is wound around the output end of the cylinder 2 3, and the other end of the connecting wire 14 is wound around the lock hook assembly 19. When the output end of the cylinder 2 3 is extended, the output end of the cylinder 2 3 drives the lock hook assembly 19 to rotate through the connecting wire 14. After the output end of the cylinder 2 3 retracts, the lock hook assembly 19 is reset under the elastic force of the tension spring. As another solution, the connecting member can adopt a connecting rod, and the two ends of the connecting rod are respectively rotatably connected to the output end of the cylinder 2 3 and the lock hook assembly 19.

[0033] During the inspection, when cylinder 1 2 drives the unlocking block 18 of the elevator door knife to rotate and pull the corresponding tension spring, cylinder 2 3 drives the transmission block 16 of the elevator door knife to move, so that the transmission block 16 slides to squeeze the reset spring and drive the two knife arms 17 to approach each other. At the same time, the output end of cylinder 2 3 drives the lock hook assembly 19 to rotate and pull the corresponding tension spring through the connecting line 14. After that, the unlocking block 18, transmission block 16, two knife arms 17 and lock hook assembly 19 of the elevator door knife are reset, and then the above actions are repeated to simulate the working scene of the elevator door knife, so as to efficiently test the durability of the elevator door knife, and then determine whether the elevator door knife is qualified.

[0034] It should be noted that cylinder 1 2 and cylinder 2 3 are electrically connected to an external controller, and the controller is used to control and monitor the working status of cylinder 1 2 and cylinder 2 3. The controller has a counting module for detecting the number of times cylinder 1 2 and cylinder 2 3 are driven. The counting module will display the detected number of times cylinder 1 2 and cylinder 2 3 are driven on the controller, and the inspector can intuitively see the working frequency or number of cylinder 1 2 and cylinder 2 3. The inspector can judge whether the components of the elevator door knife are qualified based on the number of times cylinder 1 2 and cylinder 2 3 are driven and whether the corresponding elevator door knife components are damaged.

[0035] As another solution, since the working frequency of cylinder 1 2 and cylinder 2 3 is constant, cylinder 1 2 and cylinder 2 3 work continuously for a preset period of time, whether the corresponding elevator door knife component is damaged can be used to determine whether the corresponding elevator door knife component is qualified.

[0036] The specific embodiments described in this article are merely illustrative of the spirit of the present invention; technicians in the technical field to which the present invention belongs may make various modifications or additions to the described specific embodiments or replace them in a similar manner, but will not deviate from the spirit of the present invention or exceed the scope defined by the attached claims.

Claims

1. A test tool for testing the durability of an elevator door blade, comprising a base (1), characterized in that: The base (1) is used to place an elevator door knife. The base (1) is provided with a driving member 1 and a driving member 2. The driving member 1 is used to drive the unlocking block (18) of the elevator door knife to rotate and pull the tension spring. The driving member 2 is used to drive the transmission block (16) of the elevator door knife to move. When the driving member 1 drives the unlocking block (18) of the elevator door knife to rotate and pull the corresponding tension spring, the driving member 2 drives the transmission block (16) of the elevator door knife to move, so that the transmission block (16) slides and squeezes the reset spring and drives the two knife arms (17) to approach each other. The driving member 1 includes a cylinder 1 (2). The output end of the cylinder 1 (2) is aligned with the side wall of the unlocking block (18). When the cylinder 1 (2) When the output end of the cylinder 1 (2) is extended, the output end of the cylinder 1 (2) can push the unlocking block (18) to rotate; the driving member 2 includes a cylinder 2 (3); the output end of the cylinder 2 (3) is aligned with the side wall of the transmission block (16); when the output end of the cylinder 2 (3) is extended, the output end of the cylinder 2 (3) can push the transmission block (16) to move; the output end of the cylinder 2 (3) is connected to the lock hook assembly (19) of the elevator door knife through a connecting member; when the output end of the cylinder 2 (3) is extended, the output end of the cylinder 2 (3) can drive the lock hook assembly (19) of the elevator door knife to rotate through the connecting member, and the lock hook assembly (19) of the elevator door knife pulls the corresponding tension spring.

2. The test tool for testing the durability of elevator door blades according to claim 1, characterized in that: The output end of the cylinder one (2) is provided with a shock absorbing head one (4), and the output end of the cylinder two (3) is provided with a shock absorbing head two (5).

3. The test tool for testing the durability of elevator door blades according to claim 1, characterized in that: The base (1) is detachably connected to a support seat 1 (6) and a support seat 2 (7), and the driving member 1 and the driving member 2 are respectively mounted on the support seat 1 (6) and the support seat 2 (7).

4. The test tool for testing the durability of elevator door blades according to claim 3, characterized in that: The support seat 1 (6) is provided with a strip hole 1 (8), and the base (1) is provided with a mounting hole 1 (12) corresponding to the strip hole 1 (8), and a bolt 1 (10) is passed through the strip hole 1 (8), and the bolt 1 (10) is threadedly connected to the mounting hole 1 (12); the support seat 2 (7) is provided with a strip hole 2 (9), and the base (1) is provided with a mounting hole 2 (13) corresponding to the strip hole 2 (9), and a bolt 2 (11) is passed through the strip hole 2 (9), and the bolt 2 (11) is threadedly connected to the mounting hole 2 (13).

5. The test tool for testing the durability of elevator door blades according to claim 1, characterized in that: The connecting member comprises a connecting wire (14), one end of the connecting wire (14) is wound around the output end of the second cylinder (3), and the other end of the connecting wire (14) is wound around the locking hook assembly (19).

6. The test tool for testing the durability of elevator door blades according to claim 1, characterized in that: A plurality of positioning protrusions (15) are arranged on the base (1), and a plurality of the positioning protrusions (15) are matched with through holes on the elevator door knife, and a plurality of the positioning protrusions (15) pass through corresponding through holes on the elevator door knife.

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