Adjustable elevator limit switch

Abstract

The utility model relates to the technical field of elevator limit switches, and discloses an adjustable elevator limit switch which comprises a mounting plate, a mounting groove is formed in the front face of the mounting plate, and mounting bearing seats are fixedly connected to the inner surfaces of the top and the bottom of the mounting groove. And the inner surfaces of the sides, close to each other, of the two mounting bearing seats are fixedly connected with the same threaded rod, the top end of the threaded rod penetrates through the upper surface of the mounting plate and is fixedly connected with a control knob, and the outer surface of the threaded rod is in threaded connection with a threaded plate. According to the utility model, the vertical position of the elevator limit switch body can be effectively adjusted through the vertical movement of the threaded plate, and the position of the elevator limit switch body can be adjusted with high precision, so that the position can be rapidly adjusted with large range and low precision, and then the position can be adjusted with high precision and small range. The effect of improving the adjustment precision and efficiency of the elevator limit switch is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator limit switches, in particular to an adjustable elevator limit switch. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building. Its car runs on at least two rows of rigid tracks that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. There are also stepped types, with treads mounted on tracks and running continuously, commonly known as escalators or moving walkways. Elevators are one of the indispensable equipment in current high-rise buildings. Its main function is to transport passengers at vertical heights. The elevator limit refers to the extreme position that the elevator can reach in the hoistway, which is controlled by the collision bow on the car and the travel switch on the guide rail. Such a setting can effectively avoid accidents of elevator hitting the top or bottom, and increase the safety of elevator operation.

[0003] With the rapid development of elevators, the requirements for elevator limit switches have also increased. However, the existing elevator limit switches can only adjust the position through a single sliding adjustment or a screw thread transmission, resulting in the position adjustment accuracy of the elevator limit switches being not high enough or the adjustment efficiency being too low, which greatly affects the adjustment quality and efficiency of the elevator limit switches. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: the existing elevator limit switch can only adjust the position through a single sliding adjustment or a screw thread transmission, resulting in the position adjustment accuracy of the elevator limit switch is not high enough or the adjustment efficiency is too low, which greatly affects the adjustment quality and efficiency of the elevator limit switch, and an adjustable elevator limit switch is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An adjustable elevator limit switch comprises a mounting plate, a mounting groove is provided on the front of the mounting plate, mounting bearing seats are fixedly connected to the inner surfaces of the top and bottom of the mounting groove, a same threaded rod is fixedly connected to the inner surfaces of the two mounting bearing seats on the side close to each other, the top of the threaded rod passes through the upper surface of the mounting plate and is fixedly connected to a control knob, a threaded plate is threadedly connected to the outer surface of the threaded rod, two limiting rods located on both sides of the threaded plate are fixedly connected to the inner surface of the mounting groove, the two sides of the threaded plate are slidably sleeved on the outer surface of the limiting rod through two limiting rings, the front of the threaded plate is fixedly connected to a sliding rod through two connecting plates, an adjusting ring is slidably connected to the outer surface of the sliding rod, the front of the adjusting ring is fixedly connected to the elevator limit switch body through a reset spring, the front of the threaded plate is provided with positioning holes located on both sides of the sliding rod, positioning rods are provided on both sides of the elevator limit switch body, guide sleeves are provided on both sides of the adjusting ring, and one end of the positioning rod away from the elevator limit switch body passes through the guide sleeve and extends to the inner surface of the positioning hole.

[0007] Preferably, a traction handle is fixedly connected to the front side of the elevator limit switch body.

[0008] Preferably, mounting bolts are provided on both sides of the mounting plate, two stabilizing grooves located on both sides of the mounting groove are opened on the front side of the mounting plate, and both sides of the threaded plate are slidably connected to the inner surface of the stabilizing groove through stabilizing rods.

[0009] Preferably, the number of the positioning holes is no less than twenty-two, and no less than twenty-two of the positioning holes are in a rectangular array.

[0010] Preferably, the shape of the upper surface of the traction handle is arc-shaped, and the arc of the upper surface of the traction handle is between one hundred and fifty degrees and one hundred and eighty degrees.

[0011] Preferably, a rubber wear-resistant pad is provided on the outer surface of the positioning rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model pulls the elevator limit switch body toward the front by pulling the handle, and the elevator limit switch body moves toward the front and the pulling positioning rod is pulled out from the positioning hole, which plays the role of effectively releasing the fixation of the elevator limit switch body. The elevator limit switch body is slid up and down and then the positioning rod is controlled to be inserted into the positioning hole at a relatively suitable position to complete rapid and large position adjustment. The threaded rod is rotated by controlling the knob, and the rotation of the threaded rod causes the threaded plate to move in the up and down directions under the limit of the limiting ring, and then the up and down movement of the threaded plate achieves the effect of effectively adjusting the up and down positions of the elevator limit switch body, and achieves the effect of high-precision adjustment of the position of the elevator limit switch body, thereby firstly adjusting the position quickly and widely with low precision, and then adjusting the position in a small range with high precision, to achieve the effect of improving the adjustment precision and efficiency of the elevator limit switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 A in the enlarged view;

[0016] Figure 3 The utility model is a schematic diagram of the top view of the connection structure between the adjusting ring and the elevator limit switch body.

[0017] In the figure: 1. mounting plate; 2. mounting groove; 3. mounting bearing seat; 4. threaded rod; 5. control knob; 6. threaded plate; 7. limiting rod; 8. limiting ring; 9. connecting plate; 10. sliding rod; 11. adjusting ring; 12. reset spring; 13. elevator limit switch body; 14. positioning hole; 15. positioning rod; 16. guide sleeve; 17. traction handle; 18. stabilizing groove; 19. stabilizing rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0020] Reference Figure 1-3, an adjustable elevator limit switch, including a mounting plate 1, a mounting groove 2 is provided on the front of the mounting plate 1, and mounting bearing seats 3 are fixedly connected to the inner surfaces of the top and bottom of the mounting groove 2, and the same threaded rod 4 is fixedly connected to the inner surfaces of the two mounting bearing seats 3 on the side close to each other, and the top of the threaded rod 4 passes through the upper surface of the mounting plate 1 and is fixedly connected to the control knob 5, and the outer surface of the threaded rod 4 is threadedly connected to a threaded plate 6, and two limiting rods 7 located on both sides of the threaded plate 6 are fixedly connected to the inner surface of the mounting groove 2, and the two sides of the threaded plate 6 are slidably sleeved on the outer surface of the limiting rod 7 through two limiting rings 8, and the front of the threaded plate 6 is fixedly connected to a sliding rod 10 through two connecting plates 9, and an adjusting ring 11 is slidably connected to the outer surface of the sliding rod 10, and the front of the adjusting ring 11 is fixedly connected to the elevator limit switch body 13 through a reset spring 12, and the front of the threaded plate 6 is provided with There are positioning holes 14 on both sides of the sliding rod 10, and the number of the positioning holes 14 is not less than twenty-two, and the not less than twenty-two positioning holes 14 are in a rectangular array. Positioning rods 15 are arranged on both sides of the elevator limit switch body 13, and rubber wear-resistant pads are arranged on the outer surface of the positioning rods 15. Guide sleeves 16 are arranged on both sides of the adjusting ring 11. One end of the positioning rod 15 away from the elevator limit switch body 13 passes through the guide sleeve 16 and extends to the inner surface of the positioning hole 14. A traction handle 17 is fixedly connected to the front of the elevator limit switch body 13. The shape of the upper surface of the traction handle 17 is arc-shaped, and the arc of the upper surface of the traction handle 17 is between one hundred and fifty degrees and one hundred and eighty degrees. Mounting bolts are arranged on both sides of the mounting plate 1, and two stabilizing grooves 18 located on both sides of the mounting groove 2 are opened on the front of the mounting plate 1. Both sides of the threaded plate 6 are slidably connected to the inner surface of the stabilizing groove 18 through stabilizing rods 19.

[0021] In the utility model, when the user uses the device, the elevator limit switch body 13 is pulled forward by the pulling handle 17, and the elevator limit switch body 13 moves forward to pull the positioning rod 15 out of the positioning hole 14, which effectively releases the fixation of the elevator limit switch body 13. The elevator limit switch body 13 is slid up and down and then the positioning rod 15 is controlled to be inserted into the positioning hole 14 at a relatively suitable position to complete a rapid and large position adjustment. The threaded rod 4 is rotated by the control knob 5. The rotation of the threaded rod 4 causes the threaded plate 6 to move in the up and down direction under the limit of the limiting ring 8, and then the up and down movement of the threaded plate 6 can achieve the effect of effectively adjusting the upper and lower positions of the elevator limit switch body 13, and achieve the effect of high-precision adjustment of the position of the elevator limit switch body 13, so as to first adjust the position quickly and widely with low precision, and then adjust the position in a small range with high precision, so as to improve the adjustment accuracy and efficiency of the elevator limit switch.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. An adjustable elevator limit switch, comprising a mounting plate (1), characterized in that: The front face of the mounting plate (1) is provided with a mounting groove (2), and the inner surfaces of the top and bottom of the mounting groove (2) are fixedly connected with mounting bearing seats (3), and the inner surfaces of the two mounting bearing seats (3) close to each other are fixedly connected with the same threaded rod (4), the top end of the threaded rod (4) passes through the upper surface of the mounting plate (1) and is fixedly connected with a control knob (5), and the outer surface of the threaded rod (4) is threadedly connected with a threaded plate (6), and the inner surface of the mounting groove (2) is fixedly connected with two limiting rods (7) located on both sides of the threaded plate (6), and the two sides of the threaded plate (6) are slidably sleeved on the outer surface of the limiting rod (7) through two limiting rings (8), and the threaded rod (4) is fixedly connected with the inner surface of the mounting groove (2). The front side of the plate (6) is fixedly connected to a sliding rod (10) via two connecting plates (9); an adjusting ring (11) is slidably connected to the outer surface of the sliding rod (10); the front side of the adjusting ring (11) is fixedly connected to an elevator limit switch body (13) via a return spring (12); the front side of the threaded plate (6) is provided with positioning holes (14) located on both sides of the sliding rod (10); positioning rods (15) are provided on both sides of the elevator limit switch body (13); guide sleeves (16) are provided on both sides of the adjusting ring (11); an end of the positioning rod (15) away from the elevator limit switch body (13) passes through the guide sleeve (16) and extends to the inner surface of the positioning hole (14).

2. An adjustable elevator limit switch according to claim 1, characterized in that: A traction handle (17) is fixedly connected to the front side of the elevator limit switch body (13).

3. The adjustable elevator limit switch according to claim 1, characterized in that: Both sides of the mounting plate (1) are provided with mounting bolts, the front side of the mounting plate (1) is provided with two stabilizing grooves (18) located on both sides of the mounting groove (2), and both sides of the threaded plate (6) are slidably connected to the inner surface of the stabilizing groove (18) via stabilizing rods (19).

4. The adjustable elevator limit switch according to claim 1, characterized in that: The number of the positioning holes (14) is no less than twenty-two, and no less than twenty-two positioning holes (14) are in a rectangular array.

5. The adjustable elevator limit switch according to claim 2, characterized in that: The shape of the upper surface of the traction handle (17) is arc-shaped, and the arc of the upper surface of the traction handle (17) is between one hundred and fifty degrees and one hundred and eighty degrees.

6. The adjustable elevator limit switch according to claim 1, characterized in that: A rubber wear-resistant pad is arranged on the outer surface of the positioning rod (15).

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