A travel switch for an elevator

Abstract

The present invention relates to a travel switch for an elevator, which comprises a mounting frame, a chute column and a buckle column. A protective frame is connected to the middle part inside the mounting frame, and a chute column is arranged in the middle of the protective frame. Limit frames are arranged on both sides of the chute column, and positioning bolts are connected inside the limit frames. A buckle column is arranged in the middle of the top end of the mounting frame, and vertical bolt columns are arranged on both sides of the buckle column. Clamping bolts are installed on the upper and lower sides of the protective frame. A connecting column is arranged in the middle of the bottom end of the mounting frame. The beneficial effects of the present invention are as follows: effectively buckle the bolt column with a guide bolt hole between the encapsulation plates, can encapsulate the encapsulation plates between the clamping frames, achieve the effect of closing the gap on the left side of the mounting frame, enable the encapsulation plates to be threadedly buckled between the equipment gaps of the elevator travel switch, prevent dust from entering the inside of the elevator travel switch, improve the use effect of the elevator travel switch, and avoid the occurrence of elevator travel switch failures.

Description

Technical Field

[0001] The present invention relates to the technical field of travel switches, and particularly to a travel switch for elevators. Background Art

[0002] A limit switch, also known as a travel switch, can be installed on a relatively stationary object (such as a fixed bracket, door frame, etc., hereinafter referred to as a static object) or a moving object (such as a traveling crane, door, etc., hereinafter referred to as a moving object). When the moving object approaches the static object, the connecting rod of the switch drives the contact point of the switch to cause the closed contact point to break or the open contact point to close. The on / off state change of the switch contact point is used to control the circuit and the motor. However, there are certain installation defects in the travel switch for elevators, which affect the use of the elevator travel switch. Therefore, it is necessary to improve the protection structure of the elevator travel switch.

[0003] For the travel switches on the market, it is difficult to install and reinforce the elevator travel switch on both sides, which is not conducive to the docking installation of the elevator travel switch. Dust and foreign objects are likely to enter the internal gap of the elevator travel switch, affecting the use effect of the elevator travel switch. When installing the elevator travel switch equipment, there are problems such as large overall adjustment installation deviation and serious wear of the surface buckle. Summary of the Invention

[0004] The purpose of the present invention is to provide a travel switch for elevators to solve the problems in the above-mentioned background art that for the travel switches on the market, it is difficult to install and reinforce the elevator travel switch on both sides, which is not conducive to the docking installation of the elevator travel switch. Dust and foreign objects are likely to enter the internal gap of the elevator travel switch, affecting the use effect of the elevator travel switch. When installing the elevator travel switch equipment, there are problems such as large overall adjustment installation deviation and serious wear of the surface buckle.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A travel switch for elevators includes an installation frame, a chute column, and a buckle column. The middle part inside the installation frame is connected with a protection frame, and a chute column is arranged in the middle of the protection frame. Limit frames are arranged on both sides of the chute column, and positioning bolts are connected inside the limit frames. The middle part of the top end of the installation frame is provided with a buckle column, and vertical bolt columns are arranged on both sides of the buckle column. Clamping bolts are installed on the upper and lower sides of the protection frame. The middle part of the bottom end of the installation frame is provided with a connecting column, and sandwich frames are arranged on both sides of the top end of the connecting column. An anti-wear frame is arranged on the right surface of the installation frame. Cross bars are arranged on the upper and lower sides of the rear end of the installation frame, and pads are connected to both sides of the cross bars. An equipment installation frame is installed inside the pads. A clamping frame is arranged on the left surface of the installation frame, and encapsulation boards are arranged on both sides of the clamping frame. Bolts are connected inside the encapsulation boards, and guide bolt holes are opened on both sides of the bolts.

[0006] Preferably, the protection frame and the chute column are fixedly connected, and the protection frame and the limit frame form a sliding structure through the chute column.

[0007] Preferably, the mounting frame and the connecting column are connected by threads, and the sandwich frame and the connecting column are movably connected.

[0008] Preferably, the mounting frame and the cross bar are fixedly connected, and the cross bar and the backing plate are welded together.

[0009] Preferably, the inner wall of the bolt column fits tightly with the outer wall of the encapsulation plate, and the bolt column and the engaging frame form a snap structure through the encapsulation plate.

[0010] Preferably, a return spring is distributed inside the sandwich frame, a groove is provided inside the return spring, and a compression-resistant plate is provided at the bottom end of the groove.

[0011] Preferably, the sandwich frame and the return spring are fixedly connected, and the sandwich frame and the compression-resistant plate form an elastic structure through the return spring.

[0012] Preferably, a mounting hole is provided inside the equipment mounting frame, a protective plate is connected to one side of the equipment mounting frame, and a hinge frame is provided on one side of the protective plate.

[0013] Preferably, the protective plate and the hinge frame are connected by threads, and the equipment mounting frame and the hinge frame form a rotating structure through the protective plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The protective frame of the present invention forms a sliding structure through the chute column and the limiting frame. The user can manually push the limiting frame between the chute column and the protective frame, and the sliding limiting frame can be slid and expanded on both sides of the fixedly connected protective frame and the mounting frame, which is beneficial for the elevator travel switch to be installed and reinforced on both sides and for the docking installation of the elevator travel switch.

[0016] 2. The mounting frame and the cross bar of the present invention are fixedly connected, and the cross bar and the backing plate are welded together. The welded cross bar and backing plate are effectively protected and installed at the rear end of the mounting frame, enhancing the anti-collision performance of the elevator travel switch.

[0017] 3. The bolt column of the present invention and the engaging frame form a snap structure through the encapsulation plate. The bolt column with a guide bolt hole is effectively snapped between the encapsulation plates, and the encapsulation plates can be encapsulated between the engaging frames, achieving the effect of closing the gap on the left side of the mounting frame, enabling the encapsulation plates to be threadedly snapped between the equipment gaps of the elevator travel switch, preventing dust from entering the interior of the elevator travel switch, improving the use effect of the elevator travel switch, and avoiding elevator travel switch failures.

[0018] 4. The sandwich rack of the present invention forms an elastic structure with the compression plate through the return spring. When the sandwich racks are externally squeezed, the elastic return spring can be squeezed between the grooves, so that the compression plate is elastically buckled on both sides of the bottom ends of the connecting column and the placement rack under extrusion. The squeezed compression plate and return spring can protect both sides of the bottom end of the placement rack, achieving the effect of preventing the buckle from wearing on the surface of the elevator travel switch.

[0019] 5. The equipment mounting rack of the present invention forms a rotating structure with the protection plate through the hinge rack. The user can manually push the fixedly connected equipment mounting rack and the protection plate to drive the hinge rack to rotate along between the placement racks, effectively rotating and unfolding the equipment mounting rack and the protection plate at the rear end of the placement rack, which is beneficial for the elevator travel switch to reinforce the mounting buckle at the rear end and is beneficial for the elevator travel switch to adjust the equipment placement position, preventing overall installation adjustment deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view structural schematic diagram of a travel switch for an elevator according to the present invention;

[0021] Figure 2 is a rear view structural schematic diagram of a travel switch for an elevator according to the present invention;

[0022] Figure 3 is a left view structural schematic diagram of a travel switch for an elevator according to the present invention;

[0023] Figure 4 is a travel switch for an elevator according to the present invention Figure 1 an enlarged structural schematic diagram at A in;

[0024] Figure 5 is a travel switch for an elevator according to the present invention Figure 2 an enlarged structural schematic diagram at B in.

[0025] In the figure: 1. Placement rack; 2. Protection rack; 3. Slide groove column; 4. Limit rack; 5. Positioning bolt; 6. Vertical bolt column; 7. Buckle column; 8. Clamping bolt; 9. Anti-wear rack; 10. Sandwich rack; 11. Connecting column; 12. Cross bar; 13. Pad; 14. Equipment mounting rack; 15. Guide bolt hole; 16. Bolt column; 17. Clamping rack; 18. Encapsulation plate; 19. Return spring; 20. Groove; 21. Compression plate; 22. Hinge rack; 23. Protection plate; 24. Placement hole. DETAILED DESCRIPTION OF THE INVENTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] Please refer to Figures 1-5, the present invention provides a technical solution: a travel switch for an elevator, including a mounting frame 1, a protective frame 2, a chute column 3, a limiting frame 4, a positioning bolt 5, a vertical bolt column 6, a clamping bolt 7, a wear-resistant frame 9, a sandwich frame 10, a connecting column 11, a cross bar 12, a backing plate 13, an equipment mounting frame 14, a guide bolt hole 15, a bolt column 16, a clamping frame 17, a sealing plate 18, a return spring 19, a groove 20, a compression plate 21, a hinge frame 22, a protective plate 23 and a mounting hole 24. In the middle of the interior of the mounting frame 1 is connected a protective frame 2, and in the middle of the protective frame 2 is provided a chute column 3. On both sides of the chute column 3 are arranged limiting frames 4, and inside the limiting frames 4 is connected a positioning bolt 5. The protective frame 2 and the chute column 3 are fixedly connected, and the protective frame 2 and the limiting frame 4 form a sliding structure through the chute column 3. By fixedly connecting the protective frame 2 between the mounting frames 1, the chute column 3 is fixedly connected between the protective frames 2, and the inner wall of the interior of the limiting frame 4 can be closely attached between the chute columns 3. The user can manually push the limiting frame 4 between the chute column 3 and the protective frame 2, and the sliding limiting frame 4 can be slid and expanded on both sides of the fixedly connected protective frame 2 and the mounting frame 1, which is beneficial to the two-sided reinforcement installation of the elevator travel switch and beneficial to the butt joint installation of the elevator travel switch. In the middle of the top of the mounting frame 1 is arranged a clamping bolt 7, and on both sides of the clamping bolt 7 are provided vertical bolt columns 6. On the upper and lower sides of the protective frame 2 are installed clamping bolts 8. In the middle of the bottom of the mounting frame 1 is provided a connecting column 11, and on both sides of the top of the connecting column 11 are arranged sandwich frames 10. On the right surface of the mounting frame 1 is provided a wear-resistant frame 9. On the upper and lower sides of the rear end of the mounting frame 1 are arranged cross bars 12, and on both sides of the cross bars 12 are connected backing plates 13. Inside the backing plates 13 is installed an equipment mounting frame 14. On the left surface of the mounting frame 1 is provided a clamping frame 17, and on both sides of the clamping frame 17 are arranged sealing plates 18. Inside the sealing plates 18 is connected a bolt column 16, and on both sides of the bolt column 16 are opened guide bolt holes 15;

[0029] The mounting frame 1 and the connecting column 11 are in threaded connection, and the sandwich frame 10 and the connecting column 11 are in movable connection. By threading the connecting column 11 between the mounting frames 1, the sandwich frame 10 can be protectively installed on both sides of the bottom ends of the connecting column 11 and the mounting frame 1, and the vertical bolt columns 6 and the clamping bolts 8 with the same structure can be reinforced and installed on the top of the mounting frame 1, so that the wear-resistant frame 9 is protectively connected to the outside of the mounting frame 1.

[0030] The mounting frame 1 and the cross bar 12 are fixedly connected, and the cross bar 12 and the backing plate 13 are welded together. By fixedly connecting the cross bar 12 between the mounting frames 1, the backing plate 13 is welded between the cross bars 12, effectively protecting and installing the welded cross bar 12 and the backing plate 13 at the rear end of the mounting frame 1, enhancing the anti-collision performance of the elevator travel switch;

[0031] The inner inner wall of the bolt post 16 fits tightly with the outer outer wall of the encapsulation plate 18, and the bolt post 16 and the engaging frame 17 form a snap structure through the encapsulation plate 18. When the user manually turns the bolt post 16 between the encapsulation plates 18, the thread of the bolt post 16 can penetrate between the outer outer walls of the encapsulation plate 18, effectively snapping the bolt post 16 with the guide bolt hole 15 between the encapsulation plates 18, enabling the encapsulation plate 18 to be encapsulated between the engaging frames 17, achieving the effect of closing the gap on the left side of the mounting frame 1, causing the encapsulation plate 18 to be threadedly snapped between the gaps of the elevator travel switch device, preventing dust from entering the interior of the elevator travel switch, improving the usage effect of the elevator travel switch, and avoiding elevator travel switch failures;

[0032] The inside of the sandwich frame 10 is distributed with a return spring 19, and a groove 20 is provided inside the return spring 19. A pressure-resistant plate 21 is provided at the bottom end of the groove 20. The sandwich frame 10 and the return spring 19 are fixedly connected, and the sandwich frame 10 and the pressure-resistant plate 21 form an elastic structure through the return spring 19. By fixedly connecting the return spring 19 between the sandwich frames 10, the groove 20 can be arranged between the return spring 19 and the sandwich frame 10. When the sandwich frames 10 are externally squeezed, the elastic return spring 19 can be squeezed between the grooves 20, causing the pressure-resistant plate 21 to be elastically snapped on both sides of the bottom ends of the connecting column 11 and the mounting frame 1. The squeezed pressure-resistant plate 21 and the return spring 19 can protect both sides of the bottom end of the mounting frame 1, achieving the effect of preventing snap wear on the surface of the elevator travel switch;

[0033] An installation hole 24 is opened inside the equipment mounting frame 14. One side of the equipment mounting frame 14 is connected with a protective plate 23, and a hinge frame 22 is provided on one side of the protective plate 23. The protective plate 23 and the hinge frame 22 are threadedly connected, and the equipment mounting frame 14 and the hinge frame 22 form a rotating structure through the protective plate 23. By arranging the installation hole 24 between the equipment mounting frames 14, the protective plate 23 can be fixedly connected between the equipment mounting frames 14, and the movable hinge frame 22 can be threadedly connected between the protective plates 23. The user can manually push the fixedly connected equipment mounting frame 14 and the protective plate 23 to drive the hinge frame 22 to rotate along the mounting frame 1, effectively rotating and unfolding the equipment mounting frame 14 and the protective plate 23 at the rear end of the mounting frame 1, facilitating the rear-end reinforcement and snap installation of the elevator travel switch, facilitating the adjustment of the equipment installation position of the elevator travel switch, and preventing overall installation adjustment deviation.

[0034] Working principle of this embodiment: The travel switch for the elevator is fixedly connected between the mounting frames 1 through the cross bar 12, so that the backing plates 13 are welded between the cross bars 12, effectively protecting and installing the welded cross bars 12 and backing plates 13 at the rear end of the mounting frame 1, enhancing the anti-collision performance of the elevator travel switch. The return springs 19 are fixedly connected and distributed between the sandwich frames 10, and the grooves 20 can be arranged between the return springs 19 and the sandwich frames 10. When the sandwich frames 10 are externally squeezed, the elastic return springs 19 can be squeezed between the grooves 20, so that the compression-resistant plates 21 are elastically buckled on both sides of the bottom ends of the connecting columns 11 and the mounting frames 1. The squeezed compression-resistant plates 21 and return springs 19 can protect both sides of the bottom end of the mounting frame 1, achieving the effect of preventing the buckles from wearing on the surface of the elevator travel switch. At the same time, the protective frame 2 is fixedly connected between the mounting frames 1, so that the chute columns 3 are fixedly connected between the protective frames 2. The inner wall of the inner part of the limit frame 4 can be closely attached between the chute columns 3. The user can manually push the limit frame 4 between the chute columns 3 and the protective frames 2, and the sliding limit frame 4 can be slid and expanded on both sides of the fixedly connected protective frames 2 and mounting frames 1, which is beneficial to the two-side reinforcement installation of the elevator travel switch and the butt joint installation of the elevator travel switch. Finally, by arranging the mounting holes 24 between the equipment mounting frames 14, the protective plates 23 can be fixedly connected between the equipment mounting frames 14, and the movable hinge frames 22 can be threadedly connected between the protective plates 23. The user can manually push the fixedly connected equipment mounting frames 14 and the protective plates 23 to drive the hinge frames 22 to rotate along between the mounting frames 1, effectively rotating and unfolding the equipment mounting frames 14 and the protective plates 23 at the rear end of the mounting frame 1, which is beneficial to the rear-end reinforcement installation of the elevator travel switch and the adjustment of the equipment installation position of the elevator travel switch, preventing overall installation adjustment deviation. The user manually turns the bolt column 16 between the encapsulation plates 18, and the thread of the bolt column 16 can penetrate through the outer walls of the encapsulation plates 18. The bolt column 16 with the guide bolt holes 15 is effectively buckled between the encapsulation plates 18, and the encapsulation plates 18 can be encapsulated between the clamping frames 17, achieving the effect of closing the gap on the left side of the mounting frame 1, so that the encapsulation plates 18 are threadedly buckled between the equipment gaps of the elevator travel switch, preventing dust from entering the inside of the elevator travel switch, improving the use effect of the elevator travel switch, and avoiding the occurrence of elevator travel switch failures. By threadedly connecting the connecting columns 11 between the mounting frames 1, the sandwich frames 10 can be protected and installed on both sides of the bottom ends of the connecting columns 11 and the mounting frames 1. The vertical bolt columns 6 and clamping bolts 8 with the same structure can be reinforced and installed at the top of the mounting frame 1, and the anti-wear frame 9 is protectively connected to the outside of the mounting frame 1.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A travel switch for an elevator, comprising a mounting bracket (1), a chute column (3) and a buckle column (7), characterized in that: In the middle of the interior of the mounting frame (1), a protective frame (2) is connected. In the middle of the protective frame (2), a chute column (3) is provided. On both sides of the chute column (3), limit frames (4) are arranged. Inside the limit frames (4), positioning bolts (5) are connected. In the middle of the top end of the mounting frame (1), a snap column (7) is arranged. On both sides of the snap column (7), vertical bolt columns (6) are provided. On the upper and lower sides of the protective frame (2), clamping bolts (8) are installed. In the middle of the bottom end of the mounting frame (1), a connecting column (11) is provided. On both sides of the top end of the connecting column (11), sandwich frames (10) are arranged. On the right surface of the mounting frame (1), an anti-wear frame (9) is provided. On the upper and lower sides of the rear end of the mounting frame (1), cross bars (12) are arranged. On both sides of the cross bars (12), backing plates (13) are connected. Inside the backing plates (13), equipment mounting frames (14) are installed. On the left surface of the mounting frame (1), a clamping frame (17) is provided. On both sides of the clamping frame (17), encapsulation plates (18) are arranged. Inside the encapsulation plates (18), bolt columns (16) are connected. On both sides of the bolt columns (16), guide bolt holes (15) are opened; Inside the sandwich frame (10), reset springs (19) are distributed. Inside the reset springs (19), grooves (20) are provided. At the bottom end of the grooves (20), pressure-resistant plates (21) are provided; The sandwich frame (10) and the reset springs (19) are fixedly connected, and the sandwich frame (10) and the pressure-resistant plate (21) form an elastic structure through the reset springs (19); Inside the equipment mounting frame (14), mounting holes (24) are opened. On one side of the equipment mounting frame (14), a protective plate (23) is connected. On one side of the protective plate (23), a hinge frame (22) is provided; The protective plate (23) and the hinge frame (22) are threadedly connected, and the equipment mounting frame (14) and the hinge frame (22) form a rotating structure through the protective plate (23); 2. The travel switch for an elevator according to claim 1, wherein: The protective frame (2) and the chute column (3) are fixedly connected, and the protective frame (2) and the limit frames (4) form a sliding structure through the chute column (3); 3. The travel switch for an elevator according to claim 1, characterized in that: The mounting frame (1) and the connecting column (11) are threadedly connected, and the sandwich frame (10) and the connecting column (11) are movably connected; 4. The travel switch for an elevator according to claim 1, characterized in that: The mounting frame (1) and the cross bars (12) are fixedly connected, and the cross bars (12) and the backing plates (13) are welded together; 5. The travel switch for an elevator according to claim 1, wherein: The inner inner wall of the bolt column (16) and the outer outer wall of the encapsulation plate (18) are closely attached, and the bolt column (16) and the clamping frame (17) form a snap structure through the encapsulation plate (18);

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