Limit switch support for elevator

Abstract

The utility model provides a limit switch support for an elevator, which relates to the technical field of limit switches and comprises a U-shaped fixing frame and a mounting frame arranged on one side of the fixing frame, and a mounting cavity is arranged in the mounting frame. The fixing frame is further provided with a fine adjustment structure for driving the mounting frame to ascend and descend, the fine adjustment structure comprises two supporting bases fixed to the inner wall of the fixing frame and a lead screw base installed on one side of the mounting frame, and a rotatable lead screw is installed between the two supporting bases. Through the arrangement of the fine adjustment structure, the installation frame can be driven to ascend or descend, so that fine adjustment of the position of the limiting switch during installation is achieved, the problem that when the limiting switch is installed on an elevator body, adjustment operation of the position of the limiting switch is prone to being affected by space is solved, adjustment operation of the limiting switch is facilitated, and the safety of the elevator is improved. Time and labor are saved, rapid adjustment of the position of the limit switch is facilitated, and the installation efficiency of the limit switch is improved.

Description

Technical Field

[0001] This utility model relates to the field of limit switch technology, and in particular to a limit switch bracket for elevators. Background Technology

[0002] Currently, limit switches installed in elevators are typically mounted on switch brackets, which are then connected to the elevator body to secure the limit switches. A patent application with application number 202020684420.7 discloses a limit switch bracket for elevators, comprising a U-shaped mounting bracket. One side of the U-shaped mounting bracket has a bracket groove, and the bottom of the groove has evenly spaced bracket adjustment holes. Positioning screws are screwed into the adjustment holes. A limit switch mounting bracket is located on the right side of the U-shaped mounting bracket. An installation groove is formed on one side wall of the mounting cavity, and a buffer spring is installed within the groove. A roller guard is located on the upper end of a protective pad inside the mounting cavity of the limit switch mounting bracket. This invention, through the protective components consisting of the installation groove, buffer spring, buffer column, and protective pad on the limit switch mounting bracket, achieves the function of positioning and installing the limit switch, preventing damage during installation. The limit switch is secured by the provided fastening screws, eliminating the need to disassemble the limit switch cover for installation, making it convenient and quick. After the limit switch is installed, the aforementioned switch bracket can adjust the position of the limit switch. However, in actual adjustment, the holes on the limit switch mounting bracket need to be aligned with the adjustment holes of the bracket, and the positioning screws need to be tightened for fixation. However, when installing the limit switch on the elevator body, space is often limited. Therefore, the above adjustment operation is easily affected by space, resulting in inconvenience, time and effort in adjusting the limit switch, which is not conducive to the rapid adjustment of the limit switch position and affects the installation efficiency of the limit switch. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model proposes a limit switch bracket for elevators.

[0004] The technical solution of this utility model is implemented as follows:

[0005] An elevator limit switch bracket includes a U-shaped fixing frame and a mounting frame disposed on one side of the fixing frame, wherein the mounting frame has a mounting cavity inside;

[0006] The fixed frame is also provided with a fine-tuning structure that drives the mounting frame to rise and fall. The fine-tuning structure includes two support seats fixed on the inner wall of the fixed frame and a screw seat installed on one side of the mounting frame. A rotatable screw is installed between the two support seats. The screw seat is threadedly connected to the screw. A slot for the screw seat to move is opened on one side of the fixed frame. A fastening bolt is screwed onto one side of the mounting frame.

[0007] Preferably, the top end of the lead screw extends upward to form a smooth rod portion, and a handwheel is installed at the top end of the smooth rod portion.

[0008] Preferably, the fine-tuning structure further includes a locking component for limiting and fixing the lead screw, and the locking component includes a sleeve installed at the top of the support seat located above, the sleeve having a through hole in the middle for the guide rod to pass through, and a locking bolt screwed to one side of the sleeve to abut the guide rod.

[0009] Preferably, a guide rail is also installed on the side wall of the mounting frame, and a guide rail groove that mates with the guide rail is provided on one side of the mounting frame.

[0010] Preferably, a buffer structure is provided inside the mounting cavity. The buffer structure includes a buffer plate, and a buffer spring and a damper are connected between one side of the buffer plate and the inner wall of the mounting cavity. The buffer spring is sleeved on the outside of the damper.

[0011] Preferably, limit sliders are installed on both sides of the buffer plate, and limit grooves that cooperate with the limit sliders are provided on both sides of the inner wall of the mounting frame.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In use, this utility model, through the setting of the fine-tuning structure, can drive the mounting bracket to rise or fall, thereby realizing the fine-tuning of the limit switch position during installation. This avoids the problem that the adjustment operation of the limit switch position is easily affected by space when the limit switch is installed on the elevator body, thus facilitating the adjustment operation of the limit switch, saving time and effort, and enabling rapid adjustment of the limit switch position, thereby improving the installation efficiency of the limit switch.

[0014] 2. By setting a locking component, this utility model can tighten the locking bolt after the limit switch position is adjusted, so that the locking bolt abuts the smooth part at the top of the lead screw, thereby limiting the lead screw and preventing the lead screw from rotating and causing the limit switch position to shift. This can further facilitate the installation and use of the limit switch. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure after the mounting bracket has been fine-tuned;

[0019] Figure 4 for Figure 1 A schematic diagram of the structure during disassembly of the middle limit switch;

[0020] Figure 5 for Figure 2 A partial sectional view.

[0021] In the diagram: 1. Fixed frame; 2. Mounting frame; 3. Fine-tuning structure; 31. Support base; 32. Lead screw; 33. Lead screw seat; 34. Groove; 35. Handwheel; 4. Locking component; 41. Sleeve; 42. Locking bolt; 5. Buffer structure; 51. Buffer plate; 52. Buffer spring; 6. Fastening bolt; 7. Guide rail; 8. Limit switch. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figures 1-5 The elevator limit switch bracket shown includes a U-shaped fixing frame 1 and a mounting frame 2 disposed on one side of the fixing frame 1, and the mounting frame 2 has a mounting cavity inside;

[0024] The fixed frame 1 is also provided with a fine adjustment structure 3 that drives the mounting frame 2 to rise and fall. The fine adjustment structure 3 includes two support seats 31 fixed on the inner wall of the fixed frame 1 and a screw seat 33 installed on one side of the mounting frame 2. A rotatable screw 32 is installed between the two support seats 31. The screw seat 33 is screwed onto the screw 32. A slot 34 for the screw seat 33 to move is opened on one side of the fixed frame 1. A fastening bolt 6 is screwed onto one side of the mounting frame 2. The top end of the screw 32 extends upward to form a smooth rod part, and a handwheel 35 is installed at the top end of the smooth rod part.

[0025] As described above, when using the elevator, the mounting bracket 1 can be installed in the corresponding position on the elevator first, and then the limit switch 8 can be placed into the mounting cavity. Then, the limit switch 8 can be screwed and fixed to the mounting bracket 2 by the fastening bolt 6 to complete the installation of the limit switch 8. Then, the limit switch 8 can be used to limit the elevator travel or position, which facilitates the safe operation of the elevator.

[0026] Furthermore, during the installation of the limit switch 8, the screw 32 can be rotated by the handwheel 35, causing the screw 32 to drive the screw seat 33 to move along the slot 34 and drive the mounting frame 2 to rise. Subsequently, the mounting frame 2 drives the limit switch 8 to move upward, thereby adjusting the position of the limit switch 8. If the position of the limit switch 8 needs to be lowered, the screw 32 is rotated in the opposite direction, causing the screw 32 to drive the mounting frame 2 to descend through the screw seat 33. Subsequently, the mounting frame 2 drives the limit switch 8 to descend, thereby adjusting the position of the limit switch 8. This allows for fine-tuning of the position of the limit switch 8 during installation, facilitating its installation and use.

[0027] Furthermore, such as Figure 1 , Figure 3 and Figure 4 As shown, a guide rail 7 is also installed on the side wall of the mounting bracket 1, and a guide rail groove that mates with the guide rail 7 is provided on one side of the mounting bracket 2.

[0028] During the lifting and lowering process of the mounting frame 2, the mounting frame 2 moves along the guide rail 7 through the guide rail groove, thereby limiting the mounting frame 2 and facilitating the stable lifting and lowering of the mounting frame 2. Furthermore, the guide rail 7 adopts an I-shaped structure, which helps to ensure a stable connection between the mounting frame 2 and the fixed frame 1, further realizing the stable lifting and lowering of the mounting frame 2.

[0029] Meanwhile, in this embodiment, such as Figure 1 , Figures 3-5 As shown, a buffer structure 5 is provided inside the mounting cavity. The buffer structure 5 includes a buffer plate 51. A buffer spring 52 and a damper are connected between one side of the buffer plate 51 and the inner wall of the mounting cavity, and the buffer spring 52 is sleeved on the outside of the damper.

[0030] During the installation of the limit switch 8, the buffer plate 51, the buffer spring 52 and the damper can play a buffering and protective role for the limit switch 8, avoid damage to the limit switch 8, and help ensure the normal use of the limit switch 8.

[0031] Furthermore, such as Figure 4 and Figure 5 As shown, limit sliders are installed on both sides of the buffer plate 51, and limit grooves that cooperate with the limit sliders are opened on both sides of the inner wall of the mounting bracket 2.

[0032] When the buffer plate 51 moves along the mounting cavity under force, the limit slider will slide along the limit groove to limit the buffer plate 51, thereby ensuring the stable movement of the buffer plate 51 and facilitating the stable buffering of the limit switch 8.

[0033] In addition, in this embodiment, to prevent the lead screw 32 from rotating accidentally, such as Figures 1-5 As shown, the fine-tuning structure 3 also includes a locking component 4 for limiting and fixing the lead screw 32. The locking component 4 includes a sleeve 41 installed on the top of the support base 31 located above. The sleeve 41 has a through hole in the middle for the light rod to pass through, and a locking bolt 42 that can press the light rod against one side of the sleeve 41 is screwed on.

[0034] When adjusting the position of the limit switch 8 using the lead screw 32, first loosen the locking bolt 42 from the sleeve 41 so that the locking bolt 42 is disengaged from the smooth rod at the top of the lead screw 32 to facilitate the rotation of the lead screw 32. After the position of the limit switch 8 is adjusted, tighten the locking bolt 42 so that the locking bolt 42 abuts against the smooth rod at the top of the lead screw 32 to limit the position of the lead screw 32 and prevent the lead screw 32 from rotating and causing the position of the limit switch 8 to shift. This further facilitates the installation and use of the limit switch 8.

[0035] 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 within the protection scope of the present utility model.

Claims

1. A position-limiting switch bracket for an elevator, characterized by: It includes a U-shaped fixing frame (1) and a mounting frame (2) disposed on one side of the fixing frame (1), wherein the mounting frame (2) has a mounting cavity inside; The fixed frame (1) is also provided with a fine adjustment structure (3) that drives the mounting frame (2) to rise and fall. The fine adjustment structure (3) includes two support seats (31) fixed on the inner wall of the fixed frame (1) and a screw seat (33) installed on one side of the mounting frame (2). A rotatable screw (32) is installed between the two support seats (31). The screw seat (33) is screwed onto the screw (32). A slot (34) for the screw seat (33) to move is opened on one side of the fixed frame (1). A fastening bolt (6) is screwed onto one side of the mounting frame (2).

2. The limit switch bracket for an elevator according to claim 1, characterized in that: The top end of the lead screw (32) extends upward to form a smooth rod portion, and a handwheel (35) is installed at the top end of the smooth rod portion.

3. The limit switch bracket for an elevator according to claim 2, characterized in that: The fine-tuning structure (3) also includes a locking component (4) for limiting and fixing the lead screw (32), and the locking component (4) includes a sleeve (41) installed on the top of the support base (31) located above, the sleeve (41) has a through hole in the middle for the guide rod to pass through, and a locking bolt (42) is screwed on one side of the sleeve (41) to abut the guide rod.

4. The limit switch bracket for an elevator according to claim 1, characterized in that: The side wall of the fixed frame (1) is also equipped with a guide rail (7), and a guide rail groove that cooperates with the guide rail (7) is opened on one side of the mounting frame (2).

5. The limit switch bracket for an elevator according to claim 1, characterized in that: The mounting cavity is provided with a buffer structure (5), which includes a buffer plate (51). A buffer spring (52) and a damper are connected between one side of the buffer plate (51) and the inner wall of the mounting cavity, and the buffer spring (52) is sleeved on the outside of the damper.

6. The limit switch bracket for an elevator according to claim 5, characterized in that: Limiting sliders are installed on both sides of the buffer plate (51), and limiting grooves that cooperate with the limiting sliders are opened on both sides of the inner wall of the mounting bracket (2).

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