A closely coupled elevator guide rail structure

Abstract

The utility model discloses a closely connected elevator guide rail structure, including guide rail body, the top of guide rail body is provided with the rectangular slot, and the bottom of guide rail body is provided with the rectangular sliding slot, the inside rotation of rectangular slot is provided with the rotary column, and the rear of rotary column is provided with the screw mouth, the inside lifting sliding of rectangular sliding slot is provided with the rectangular plug, and the inside below of rectangular plug is provided with the first sliding slot, and the front of first sliding slot is provided with the first sliding block, and the front of first sliding block is provided with the threaded column, and the inside rear of first sliding slot is provided with the spring, the utility model discloses: the utility model passes through the threaded connection of threaded column and screw mouth, can to adjacent guide rail play the effective spacing of up and down direction, solved the problem that the existing guide rail in background art can only realize the four -around direction foundation spacing, can not limit up and down direction little shift, cooperate the secondary spacing of limiting bolt and limiting mouth simultaneously, further enhanced the stability of up and down direction spacing.

Description

Technical Field

[0001] This utility model relates to the field of elevator guide rail technology, specifically a tightly connected elevator guide rail structure. Background Technology

[0002] Elevator guide rails are metal track structures installed inside the elevator shaft to provide vertical guidance for the car and counterweight and limit their lateral sway. They typically consist of the guide rail body, guide rail brackets, and pressure plates. They not only ensure the smoothness and accuracy of elevator operation but also transmit braking force during elevator braking or emergencies. They are the core load-bearing and guiding components that ensure the safe and efficient operation of the elevator. High-strength steel is commonly used to support the weight of the car and passengers.

[0003] The existing Chinese patent publication number CN223468060U, entitled "A Tightly Connected Elevator Guide Rail Structure," explicitly states in its abstract that "This utility model discloses a tightly connected elevator guide rail structure, including a guide rail body. Mounting plates are fixedly installed on both sides of the guide rail body surface. An insertion locking mechanism to improve the connection stability of the guide rail body is provided inside the guide rail body. The insertion locking mechanism includes a first cavity, a second cavity, a locking plate, a screw, a moving block, and a transmission rod. The first cavity is located at the lower end of the guide rail body, and the second cavity is located at the upper end of the guide rail body. A locking plate is movably engaged inside the first cavity. This utility model has good performance; the additional insertion locking mechanism between adjacent guide rails allows for a tighter connection, thus improving the connection effect of the elevator guide rail. Furthermore, this insertion locking mechanism can be released at any time as needed, facilitating the individual disassembly of a single guide rail section."

[0004] However, in this technology, when adjacent guide rails are connected on the upper and lower sides, the limiting mechanism relies solely on the insertion of a clamping plate into the second cavity. No active fixing structure between the clamping plate and the second cavity is designed. This connection method only provides basic circumferential limiting for the guide rails and cannot restrict minor vertical movement. During elevator operation, the guide rails continuously bear the weight of the car and passengers, the instantaneous impact force during braking, and the periodic vibrations generated by the car's vertical movement. These forces directly act on the mating parts of the clamping plate and the second cavity. Due to the lack of dedicated vertical limiting and active pre-tightening design, adjacent guide rails are prone to unexpected minor movement along the mating surface. This movement not only affects the stability of the elevator operation but also exacerbates vibration and friction at the guide rail connection points, generating operating noise. Utility Model Content

[0005] The purpose of this invention is to provide a tightly connected elevator guide rail structure to solve the problem mentioned in the background art of being unable to restrict the slight vertical movement of the guide rail.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A tightly connected elevator guide rail structure includes a guide rail body, a rectangular slot provided at the top of the guide rail body, and a rectangular groove provided at the bottom of the guide rail body; The rectangular slot has a rotating post rotatably arranged at the front, and a screw hole is provided at the rear of the rotating post. The rectangular slide groove is equipped with a rectangular insert that slides up and down. The lower part of the rectangular insert has a first slide groove. A first slider is slidably arranged in front of the first slide groove. A threaded post is arranged in front of the first slider. A spring is arranged at the rear of the first slide groove.

[0007] In a preferred embodiment of this utility model, the rectangular plug-in is slidably installed and removed in the rectangular slot, and the spring is connected to the front of the first slider.

[0008] In a preferred embodiment of this utility model, the threaded post extends to the outside of the rectangular insert, and the threaded opening is threadedly connected to the threaded post.

[0009] In a preferred embodiment of the present invention, a second slide groove is provided in front of the bottom of the inner side of the rectangular slide groove, and a second slider is slidably disposed inside the second slide groove.

[0010] In a preferred embodiment of the present invention, a limiting bolt is provided behind the second slider, the limiting bolt extends to the rear of the outer side of the second slide groove, and a limiting port is provided at the top front of the rectangular plug, the limiting bolt being installed and removed in the limiting port.

[0011] In a preferred embodiment of this utility model, a threaded rod is rotatably provided inside the second slide groove, and a threaded tube is provided inside the second slider, wherein the threaded rod and the threaded tube are threadedly connected.

[0012] In a preferred embodiment of this utility model, a rotating block is provided in front of the threaded rod, and both the rotating block and the rotating column are located in front of the outer side of the guide rail body, and both the rotating block and the rotating column are provided with cross screw holes.

[0013] In a preferred embodiment of this utility model, a limiting rail is provided at the rear of the rectangular slide groove, and a limiting block is provided at the top rear of the rectangular insert. The limiting block and the limiting rail are slidably connected.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0015] Beneficial effects: This utility model, through the cooperation of rectangular plugs and rectangular slots, and the threaded connection of threaded posts and threaded openings, can effectively limit the vertical movement of adjacent guide rails, solving the problem in the prior art that existing guide rails can only achieve basic circumferential limiting and cannot limit minor vertical movement. Simultaneously, the secondary limiting effect of limit bolts and limit openings further enhances the stability of vertical limiting, preventing unexpected minor movement along the mating surface of the guide rails during elevator operation when subjected to the gravity load of the car and passengers, the instantaneous impact force during braking, and the periodic vibration generated by the car's vertical movement. This ensures the smooth operation of the elevator, reduces vibration and friction caused by movement at the guide rail connection points, and lowers operating noise.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the main structure in a tightly connected elevator guide rail structure. Figure 2 This is a schematic diagram of the cross-sectional structure of a tightly connected elevator guide rail structure. Figure 3 A schematic diagram of the cross-sectional structure of a rectangular insert in a tightly connected elevator guide rail structure; Figure 4 This is a schematic diagram of the internal structure of a rectangular groove in a tightly connected elevator guide rail structure.

[0018] In the diagram: 1. Guide rail body; 11. Rectangular slot; 12. Rectangular slide; 13. Rotating column; 14. Threaded port; 2. Rectangular insert; 21. Second slide; 22. Threaded rod; 23. Second slider; 24. Rotating block; 25. Threaded tube; 3. First slide; 31. First slider; 32. Threaded column; 33. Spring; 34. Limiting port; 35. Limiting bolt; 4. Limiting rail; 41. Limiting block. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] Please refer to Figures 1-4 This utility model discloses a tightly connected elevator guide rail structure, including a guide rail body 1. The guide rail body 1 can directly adopt the guide rail from the prior art patent, and the material can be high-strength carbon structural steel to ensure load-bearing and guiding performance. A rectangular slot 11 is provided at the top of the guide rail body 1, and a rectangular slide groove 12 is provided at the bottom of the guide rail body 1. A rectangular insert 2 is slidably mounted inside the rectangular slide groove 12. The rectangular insert 2 is made of alloy structural steel and has a galvanized anti-rust treatment. The rectangular slot 11 is used to mate with the rectangular insert 2 at the bottom of the adjacent upper guide rail, and the rectangular slide groove 12 provides lifting and sliding space for the rectangular insert 2. In the space, the rectangular plug-in 2 slides and is disassembled in the rectangular slot 11. When it is necessary to connect to the adjacent guide rail, the rectangular plug-in 2 of the lower guide rail can be slid into the rectangular slot 11 of the upper guide rail. When it is necessary to disassemble, the rectangular plug-in 2 can be slid out from the rectangular slot 11. A limit rail 4 is provided at the rear of the rectangular slide groove 12, and a limit block 41 is provided at the top rear of the rectangular plug-in 2. The limit block 41 is slidably connected to the limit rail 4. The limit rail 4 is used to limit the limit block 41, thereby limiting the rectangular plug-in 2, restricting its downward sliding distance, and preventing the rectangular plug-in 2 from falling out of the rectangular slide groove 12.

[0021] The rectangular insert 2 has a first groove 3 at its lower interior, which provides a stable sliding path for the first slider 31. The first slider 31 is slidably mounted in front of the first groove 3 and can slide smoothly back and forth along the inner wall of the first groove 3. A threaded post 32 is integrally formed in front of the first slider 31 and extends to the outside of the rectangular insert 2. The surface of the threaded post 32 is machined with fine external threads with a thread accuracy of 6H. The rectangular slot 11 has a rotating post 13 rotatably mounted in front, which can rotate flexibly around its own axis. A screw hole 14 is provided behind the rotating post 13. The screw hole 14 has an internal thread structure, and the thread specification is adapted to the threaded post 32. The screw hole 14 and the threaded post 32 are connected by a precision thread, and the thread fit clearance is controlled within 0.02-0.05mm to ensure a tight connection. A spring 33 is installed at the rear of the first slide groove 3. The spring 33 is a cylindrical helical compression spring made of piano wire with a stable elastic modulus. The initial preload is set to 5-8N. The front of the spring 33 is fixedly connected to the first slider 31 by welding. When the first slider 31 slides backward, the spring 33 is compressed and generates a uniform restoring force. When the external force is removed, the spring 33 can push the first slider 31 forward to accurately reset.

[0022] A second slide groove 21 is provided at the front of the bottom inner side of the rectangular slide groove 12. The second slide groove 21 provides a guiding sliding space for the second slider 23. The second slider 23 is slidably disposed inside the second slide groove 21 and can slide smoothly back and forth along the inner wall of the second slide groove 21. A threaded rod 22 is rotatably disposed inside the second slide groove 21 via a rolling bearing. The surface of the threaded rod 22 is machined with a trapezoidal thread, which has high transmission efficiency and good self-locking performance, and can rotate smoothly around its own axis within the second slide groove 21. A threaded tube 25 is embedded and fixedly disposed inside the second slider 23. The threaded tube 25 is made of tinplate. Copper, with its excellent anti-friction properties, is fixed with the second slider 23 by an interference fit. The threaded rod 22 and the threaded tube 25 are tightly connected by threads. When the threaded rod 22 is rotated, the threaded tube 25 can drive the second slider 23 to slide back and forth at a uniform speed along the second slide groove 21. A rotating block 24 is fixedly installed in front of the threaded rod 22 by a flat key. The front of the rotating block 24 and the rotating column 13 are both located on the outside front of the guide rail body 1. The front of the rotating block 24 and the rotating column 13 are both provided with standard cross screw holes. The cross screw holes are compatible with PH2 type cross screwdrivers, which makes it convenient for operators to drive the rotation with tools.

[0023] A limit bolt 35 is fixedly installed behind the second slider 23 by a threaded connection. The limit bolt 35 is made of stainless steel with a smooth and burr-free surface and extends to the rear of the outer side of the second slide groove 21. A limit port 34 is provided at the top front of the rectangular plug 2. The limit bolt 35 is precisely installed and removed in the limit port 34. When the limit bolt 35 is fully inserted into the limit port 34, it can rigidly limit the rectangular plug 2 to prevent it from rising or falling unexpectedly. When the limit bolt 35 is removed from the limit port 34, the rectangular plug 2 can resume flexible rising and falling sliding.

[0024] The working principle of this utility model is as follows: When connecting adjacent guide rails, the rectangular plug 2 slides down along its own rectangular slide groove 12 to the bottom. At this time, the limiting block 41 slides synchronously to the bottom of the limiting rail 4 to complete the limiting. At this time, the limiting bolt 35 aligns with the limiting port 34. A Phillips screwdriver is inserted into the Phillips screw hole of the rotating block 24 and rotated, thereby driving the second slider 23 to move backward along the second slide groove 21 and the limiting bolt 35. The limiting bolt 35 is precisely inserted into the limiting port 34 of the rectangular plug 2, and the rectangular plug 2 is initially fixed. Then, the operator manually presses the threaded post 32. The threaded post 32 drives the first slider 31 to slide backward along the first slide groove 3, while compressing the spring 33, causing the threaded post 32 to retract to... Inside the first slide groove 3; then push the lower guide rail upwards, align the rectangular plug 2 with the rectangular slot 11 of the upper guide rail and insert it completely. At this time, the screw 14 in the rectangular slot 11 is precisely engaged with the threaded post 32 of the rectangular plug 2. The spring 33 releases its reset force, pushing the first slider 31 and the threaded post 32 forward, so that the threaded post 32 and the screw 14 are initially engaged; finally, insert a Phillips screwdriver into the Phillips screw hole of the rotating post 13 and rotate it counterclockwise. The rotating post 13 drives the screw 14 to rotate synchronously. The screw 14 and the threaded post 32 are precisely engaged and tightly screwed together by the fine thread, completing the double locking; when disassembling, follow the reverse steps, first rotate the rotating post 13 to separate the screw 14 from the threaded post 32.

[0025] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A tightly connected elevator guide rail structure, comprising a guide rail body (1), characterized in that: The top of the guide rail body (1) is provided with a rectangular slot (11), and the bottom of the guide rail body (1) is provided with a rectangular groove (12). The rectangular slot (11) has a rotating post (13) rotatably arranged at the front, and a screw hole (14) is arranged at the rear of the rotating post (13). The rectangular slide groove (12) is equipped with a rectangular insert (2) that slides up and down inside. The rectangular insert (2) is equipped with a first slide groove (3) at the bottom inside. The first slide groove (3) is equipped with a first slider (31) that slides in front of it. The first slider (31) is equipped with a threaded column (32) in front of it. The first slide groove (3) is equipped with a spring (33) at the rear inside.

2. The tightly connected elevator guide rail structure according to claim 1, characterized in that, The rectangular insert (2) slides in and out of the rectangular slot (11), and the spring (33) is connected to the first slider (31) in front.

3. The tightly connected elevator guide rail structure according to claim 1, characterized in that, The threaded post (32) extends to the outside of the rectangular insert (2), and the threaded opening (14) is threadedly connected to the threaded post (32).

4. The tightly connected elevator guide rail structure according to claim 1, characterized in that, A second slide (21) is provided in front of the bottom of the inner side of the rectangular slide (12), and a second slider (23) is slidably provided inside the second slide (21).

5. The tightly connected elevator guide rail structure according to claim 4, characterized in that, A limit bolt (35) is provided behind the second slider (23). The limit bolt (35) extends to the rear of the outer side of the second slide groove (21). A limit port (34) is provided at the top front of the rectangular plug (2). The limit bolt (35) is installed and removed in the limit port (34).

6. The tightly connected elevator guide rail structure according to claim 4, characterized in that, The second slide (21) is rotatably provided with a threaded rod (22), and the second slider (23) is provided with a threaded tube (25). The threaded rod (22) and the threaded tube (25) are threadedly connected.

7. The tightly connected elevator guide rail structure according to claim 6, characterized in that, A rotating block (24) is provided in front of the threaded rod (22). The rotating block (24) and the rotating column (13) are both located in front of the outer side of the guide rail body (1). Both the rotating block (24) and the rotating column (13) are provided with cross screw holes.

8. The tightly connected elevator guide rail structure according to claim 1, characterized in that, A limiting rail (4) is provided at the rear of the rectangular slide groove (12), and a limiting block (41) is provided at the top rear of the rectangular plug (2). The limiting block (41) and the limiting rail (4) are slidably connected.

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