An elevator balance coefficient detection terminal

Abstract

This utility model relates to the field of elevator testing terminal technology, specifically disclosing an elevator balance coefficient testing terminal, including a terminal body, a mounting frame, a clamping assembly, and an unlocking assembly. The terminal body has a test wire insertion port, and the mounting frame is detachably mounted on the terminal body. The clamping assembly includes two symmetrically arranged arc-shaped clamping plates, an elastic element, and a rotating shaft. The arc-shaped clamping plates are rotatably connected to the mounting frame via the rotating shaft to form the clamping port. The elastic element is located at the bottom outer side of the arc-shaped clamping plates, driving the bottom of the clamping plates to clamp the test wire insertion head inward. The unlocking assembly is movably mounted on the mounting frame, used to drive the bottom of the clamping plates to open outward to release the clamp. This utility model adopts an arc-shaped clamping plate structure to achieve quick insertion and removal and automatic locking of the test wire insertion head. Through the lever self-locking principle, it forms a tightening anti-detachment effect, avoiding damage to the test wire caused by traditional clamping methods, improving connection reliability and operational convenience, and ensuring stable testing operations.

Description

Technical Field

[0001] This utility model relates to the field of elevator testing terminal technology, specifically an elevator balance coefficient testing terminal. Background Technology

[0002] The elevator balance coefficient is one of the key parameters of an elevator's overall performance. Whether its value is within a reasonable range directly affects the elevator's reliability, safety, and energy efficiency. Currently, the elevator balance coefficient is usually tested using the current detection method, which indirectly calculates the balance coefficient by detecting changes in the motor current during elevator car operation. This testing method requires a dedicated elevator balance coefficient testing terminal, which generally includes a main unit, a detection harness, and connecting components for connecting the detection harness to the elevator control cabinet's wiring terminals.

[0003] In the published patent document CN221765625U, a power cable testing terminal is described. The terminal is provided with a sleeve (installation sleeve) covering the outside of the power clamp, and a positioning assembly consisting of a screw and an abutment pad is used to abut the clamping end from the side. The purpose is to prevent the clamp from loosening or the testing from being interrupted due to external force during the testing process.

[0004] In the above design, the core holding mechanism still relies on the clamp's direct and rigid gripping of the detection harness itself. During the testing process, if the detection harness is accidentally pulled (such as by a person tripping or equipment movement), the tension will be directly transmitted to the connection between the clamp and the cable. Since the clamp needs to use a strong clamping force to engage the cable conductor to ensure conductivity, this type of clamping is very likely to cause shearing or crushing damage to the outer insulation of the detection harness when subjected to external force, and may even cause damage to the internal conductor, thereby damaging the detection harness, affecting its service life, and posing a safety hazard. Utility Model Content

[0005] To address the technical problems in the prior art, this utility model provides an elevator balance coefficient detection terminal, which aims to solve the safety hazard caused by the direct rigid clamping of the detection cable harness in the prior art, which makes the cable susceptible to external force damage.

[0006] An elevator balance coefficient detection terminal includes a terminal body, a mounting bracket, a clamping assembly, and an unlocking assembly, wherein... The terminal body is equipped with a detection line insertion port; The mounting bracket is detachably mounted on the terminal body and corresponds to the detection line insertion port; The clamping assembly includes an arc-shaped clamping plate, an elastic element, and a rotating shaft; The arc-shaped clamping plates include two, which are symmetrically arranged on the top periphery of the detection line insertion port. The top of the opposite side of the two arc-shaped clamping plates has a rotating shaft extending outward. The two arc-shaped clamping plates are rotatably connected to the mounting frame through the rotating shaft to form a clamping port. The clamping port is coaxially corresponding to the detection line insertion port. The elastic element is provided in two parts, which are symmetrically arranged on the bottom of the outer side wall of the two arc-shaped clamping plates. It is used to drive the arc-shaped clamping plates to rotate along the rotation axis, so that the bottom of the arc-shaped clamping plates moves inward to clamp the detection line insertion head inserted into the detection line insertion port. The unlocking component is movably mounted on the mounting frame and connected to the bottom of the outer wall of the arc-shaped clamping plate. It is used to drive the bottom of the arc-shaped clamping plate to open outward against the elastic force of the elastic element, so as to release the lock on the detection line insertion head.

[0007] Optionally, the clamping assembly further includes two synchronizing gears, which are respectively disposed on the same rotating shaft at the same end of the two arc-shaped clamping plates. The two synchronizing gears are meshed and used to drive the two arc-shaped clamping plates to open or close synchronously.

[0008] Optionally, the elastic element is a compression spring, one end of which is fixedly connected to the outer wall of the arc-shaped clamping plate, and the other end is fixedly connected to the mounting bracket, which is used to provide a spring force fulcrum for the compression spring.

[0009] Optionally, the clamping assembly further includes an anti-slip strip; The anti-slip strip includes two strips, which are symmetrically arranged at the bottom of the two arc-shaped clamping plates to increase the friction force of the clamping at the bottom of the arc-shaped clamping plates.

[0010] Optionally, the top of the two arc-shaped clamping plates is provided with an arc-shaped expansion opening.

[0011] Optionally, the unlocking component includes a rotating rod and a pull cord, wherein, The rotating rod is inserted into the mounting frame laterally and is located at the corresponding elastic element outside the arc-shaped clamping plate; The pull rope is located between the rotating rod and the bottom of the arc-shaped clamping plate. One end of the rope is fixed to the rotating rod, and the other end is fixed to the corresponding elastic element at the bottom of the outer wall of the arc-shaped clamping plate. When the rotating rod rotates, the pull rope can be wound onto the rotating rod, thereby opening the bottom of the arc-shaped clamping plate outward against the elastic force of the elastic element and releasing the lock on the detection line insertion head.

[0012] Optionally, the unlocking assembly also includes a knob located on one end of the rotating rod outside the mounting bracket, for driving the rotating rod to rotate.

[0013] Optionally, a protective cover is also included, which is located on the top of the mounting bracket and has a clearance hole corresponding to the insertion port of the detection line.

[0014] Compared with the prior art, the elevator balance coefficient detection terminal provided by this utility model has the following advantages: (1) An adaptive clamping structure is constructed by the cooperation of two symmetrically arranged arc-shaped clamping plates and elastic elements. When inserting the test line plug head, the plug head can naturally open the bottom of the arc-shaped clamping plate, making the operation extremely labor-saving. After the plug head is fully inserted, under the action of the elastic element's restoring force, the arc-shaped clamping plate can automatically reset and hold the plug head, completing the locking and realizing a quick connection of "one-plug-and-connect". At the same time, when the plug head is pulled by an unexpected external force, the pulling force will be converted into a torque that drives the bottom of the arc-shaped clamping plate to tighten further inward, thereby achieving a self-locking effect of "the more you pull, the tighter it gets", avoiding connection interruption caused by the cable being tripped or pulled during the testing process, and greatly improving the efficiency and convenience of wiring operations.

[0015] (2) The clamping part acts on the test line insertion head, rather than directly on the outer insulation or internal conductor of the test cable, which eliminates the risk of cable sheath damage or internal conductor breakage caused by excessive clamping force or external pulling. It protects the valuable test cable bundle from the source, extends its service life, and eliminates the electrical safety hazards caused by it.

[0016] (3) With the dedicated unlocking component, the user does not need to operate each clamping point individually. With one action, namely rotating the knob, all clamping mechanisms are driven to open synchronously, so as to easily and quickly pull out the test line plug head; greatly simplifying the operation steps and improving the efficiency of equipment opening and closing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an elevator balance coefficient detection terminal according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the mounting frame of an elevator balance coefficient detection terminal according to the present invention. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Sectional view along line AA; Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0018] In the diagram: 1. Terminal body; 101. Detection line insertion port; 2. Mounting bracket; 3. Clamping assembly; 31. Arc-shaped clamping plate; 311. Arc-shaped expansion port; 32. Elastic element; 321. Compression spring; 33. Rotating shaft; 34. Synchronous gear; 35. Anti-slip strip; 4. Unlocking assembly; 41. Rotating rod; 42. Pull rope; 43. Knob; 5. Protective cover; 51. Clearance hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0021] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] 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 intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0025] Please see Figure 1-5 The present application proposes an elevator balance coefficient detection terminal, which includes a terminal body 1, a mounting bracket 2, a clamping component 3, and an unlocking component 4.

[0026] like Figure 1-3 As shown, the terminal body 1 is provided with a detection line insertion port 101; the mounting bracket 2 is detachably mounted on the terminal body 1 and corresponds to the detection line insertion port 101; the clamping assembly 3 includes an arc-shaped clamping plate 31, an elastic element 32, and a rotating shaft 33; the arc-shaped clamping plate 31 includes two plates, which are symmetrically arranged on the top periphery of the detection line insertion port 101. The top of the opposite side of the two arc-shaped clamping plates 31 extends outward with a rotating shaft 33. The two arc-shaped clamping plates 31 are rotatably connected to the mounting bracket 2 through the rotating shaft 33 to form a clamping opening. The clamping opening is connected to the detection line insertion port 101. The test line insertion port 101 is coaxially corresponding; two elastic elements 32 are provided, symmetrically arranged on the bottom of the outer side wall of the two arc-shaped clamping plates 31, for driving the arc-shaped clamping plates 31 to rotate along the rotation axis 33, so that the bottom of the arc-shaped clamping plates 31 moves inward to clamp the test line insertion head inserted into the test line insertion port 101; the unlocking component 4 is movably arranged on the mounting frame 2 and connected to the bottom of the outer side wall of the arc-shaped clamping plate 31, for driving the bottom of the arc-shaped clamping plate 31 to open outward against the elastic force of the elastic element 32 to release the lock on the test line insertion head.

[0027] Specifically, a revolutionary connection method is achieved through the ingenious cooperation between the rotatable arc-shaped clamping plate 31 and the elastic element 32. During operation, the bottom of the two arc-shaped clamping plates 31 will naturally open during the insertion of the detection line insertion head. This process is smooth and effortless, achieving rapid insertion. After the insertion head is fully inserted, the restoring force of the elastic element 32 will drive the arc-shaped clamping plate 31 to automatically rotate and reset, thereby encircling and clamping the insertion head, completing a fast and reliable connection with "one-click connection".

[0028] Of particular importance is that this structure utilizes the lever principle to achieve a self-locking effect: when the insertion head is subjected to an unexpected external force, this force is converted into a torque through the clamping point, driving the bottom of the arc-shaped clamping plate 31 to tighten further inward, creating a "tighter the more you pull" clamping effect. This greatly improves the reliability of the connection and effectively avoids connection interruptions caused by the cable being tripped or pulled during the testing process. The entire clamping process acts entirely on the dedicated connector, the test line insertion head, fundamentally eliminating the risks of insulation damage and internal conductor breakage caused by directly clamping the cable.

[0029] In some embodiments, such as Figure 3 As shown, the clamping assembly 3 also includes a synchronization gear 34. There are two synchronization gears 34, which are respectively disposed on the rotation shaft 33 at the same end of the two arc-shaped clamping plates 31. The two synchronization gears 34 are meshed and used to drive the two arc-shaped clamping plates 31 to open or close synchronously.

[0030] Specifically, this embodiment adds a key mechanism called the synchronizing gear 34; the two synchronizing gears 34 mesh with each other, ensuring that the two arc-shaped clamping plates 31 maintain absolutely synchronized reverse movement at all times; this design brings significant benefits: First, it ensures the uniform distribution of clamping force, ensuring that the self-locking effect occurs simultaneously on both clamping plates, avoiding the problem of one-sided force on the insertion head and clamping misalignment that may be caused by the two clamping plates being out of sync, making the "tighter the more you pull" anti-dislodgement effect more reliable and stable; Second, when operating the unlocking component, only one clamping plate needs to be driven, and the other side will automatically follow through gear transmission, making the unlocking action smoother and less labor-intensive, providing a good mechanical basis for centralized unlocking.

[0031] In some embodiments, such as Figure 1-3 , Figure 5 As shown, the elastic element 32 is a compression spring 321. One end of the compression spring 321 is fixedly connected to the outer wall of the arc-shaped clamping plate 31, and the other end is fixedly connected to the mounting bracket 2, which is used to provide a spring force fulcrum for the compression spring 321.

[0032] Specifically, in this embodiment, the elastic element is further defined, using a compression spring 321 as the elastic driving element, and supported stably by the mounting bracket 2. The compression spring 321 is located on the outside of the arc-shaped clamping plate 31. When it is in a compressed state, it generates a torque that drives the bottom of the arc-shaped clamping plate 31 to rotate inward. This is the direct power source for achieving the automatic clamping function and self-locking effect. The mounting bracket 2 provides a reliable reaction force fulcrum for the compression spring 321, ensuring that the elastic force can be efficiently transmitted and converted. The structure is simple and reliable, and the force transmission path is clear, providing the necessary elastic force guarantee for the "one-click clamping" and "tightening as it is pulled" effects.

[0033] In some embodiments, such as Figure 3 , Figure 5 As shown, the clamping assembly 3 also includes anti-slip strips 35; there are two anti-slip strips 35, which are symmetrically arranged at the bottom of the two arc-shaped clamping plates 31 to increase the friction of clamping at the bottom of the arc-shaped clamping plates 31.

[0034] Specifically, this embodiment further enhances the "tightening with tension" effect by adding an anti-slip strip 35. This anti-slip strip 35 is typically made of rubber or high-friction engineering plastic and is embedded or pasted onto the inner surface of the arc-shaped clamping plate 31 that contacts the insertion head. This significantly increases the static friction between the clamping surface and the insertion head. This is not only the basis for achieving a reliable electrical connection but also a key element in achieving the "tightening with tension" self-locking effect. When the insertion head is subjected to an outward pulling force, the high-friction anti-slip strip 35 ensures that the pulling force is effectively converted into a torque that causes the bottom of the arc-shaped clamping plate 31 to tighten inward, thereby forming a positive feedback loop. The greater the external force, the more obvious the effect of increasing the clamping force, greatly enhancing the reliability of preventing dislodgement.

[0035] In some embodiments, such as Figure 3 , Figure 5 As shown, the top of the two arc-shaped clamping plates 31 is provided with an arc-shaped expansion port 311.

[0036] Specifically, this embodiment optimizes the structure of the arc-shaped clamping plate 31; the arc-shaped expansion port 311 is a trumpet-shaped opening formed on the inner side of the top of the two clamping plates; the arc-shaped expansion port 311 forms a guiding slope, which can perform preliminary centering and guidance for the inserted detection line plug head; even if the plug head is slightly offset when inserted, it can be smoothly guided into the correct clamping position under the action of the guiding slope, thereby reducing the difficulty of insertion, further improving the convenience of "plug and play" and user experience, and creating favorable conditions for fast and reliable connection.

[0037] In some embodiments, such as Figure 1-2 , Figure 5 As shown, the unlocking component 4 includes a rotating rod 41 and a pull rope 42. The rotating rod 41 is inserted into the mounting bracket 2 and is located at the corresponding elastic element 32 on the outside of the arc-shaped clamping plate 31. The pull rope 42 is located between the rotating rod 41 and the bottom of the arc-shaped clamping plate 31. One end of the pull rope 42 is fixed to the rotating rod 41, and the other end is fixed to the corresponding elastic element 32 at the bottom of the outer wall of the arc-shaped clamping plate 31. When the rotating rod 41 rotates, the pull rope 42 can be wound onto the rotating rod 41, thereby opening the bottom of the arc-shaped clamping plate 31 outward against the elastic force of the elastic element 32 and releasing the lock on the detection line insertion head.

[0038] Specifically, this embodiment provides a specific implementation of the unlocking component 4; this method uses a rotating rod 41 to wind up the pull rope 42 to pull the bottom of the clamping plate outward. When the user rotates the rotating rod 41, the pull rope 42 is wound up, thereby applying an outward pulling force to the bottom of the arc-shaped clamping plate 31; this pulling force overcomes the elasticity and self-locking torque of the compression spring 321, forcing the bottoms of the two clamping plates to rotate outward synchronously, thereby expanding the clamping aperture, releasing the lock on the insertion head, effectively converting the rotational action into the required linear traction force, realizing a centralized and labor-saving unlocking operation, allowing the user to easily and quickly insert and remove the detection line.

[0039] In some embodiments, such as Figure 2 As shown, the unlocking component 4 also includes a knob 43, which is located on one end of the rotating rod 41 on the outside of the mounting bracket 2, and is used to drive the rotating rod 41 to rotate.

[0040] Specifically, this embodiment optimizes the unlocking method by adding a knob 43. The knob 43 is typically fixed to the end of the rotating rod 41 by threads or keyways, providing the user with an ergonomic point of force application. It increases the lever arm, allowing the user to drive the rotating rod 41 to rotate with only a small torque, overcoming the self-locking force of the clamping plate and making the operation more effortless. At the same time, the knob 43 serves as a human-machine interface, clearly indicating the position and method of the unlocking operation, making the entire unlocking process more intuitive and convenient, truly achieving "one action to complete the synchronous unlocking of all clamping points".

[0041] In some embodiments, such as Figure 1 As shown, an elevator balance coefficient detection terminal also includes a protective cover 5, which is located on the top of the mounting bracket 2. The protective cover 5 has a clearance hole 51 corresponding to the detection line insertion port 101.

[0042] Specifically, this embodiment optimizes the structure of the mounting bracket and adds a protective cover 5. The protective cover 5 covers the mounting bracket 2, and its clearance hole 51 allows the detection line to pass through. It provides a layer of physical protection for the internal clamping component 3 and unlocking component 4, which can effectively prevent foreign objects from entering the clamping mechanism and avoid the risk of mechanism jamming, poor contact or short circuit caused by contamination. It protects the precision "tightening as you pull" self-locking mechanism and improves the long-term reliability and service life of the terminal in complex industrial environments.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An elevator balance coefficient detection terminal, characterized in that, It includes a terminal body (1), a mounting bracket (2), a clamping component (3), and an unlocking component (4), wherein, The terminal body (1) is provided with a detection line insertion port (101). The mounting bracket (2) is detachably mounted on the terminal body (1) and corresponds to the detection line insertion port (101). The clamping assembly (3) includes an arc-shaped clamping plate (31), an elastic element (32), and a rotating shaft (33); The arc-shaped clamping plate (31) includes two, which are symmetrically arranged on the top periphery of the detection line insertion port (101). The top of the opposite side of the two arc-shaped clamping plates (31) has a rotating shaft (33) extending outward. The two arc-shaped clamping plates (31) are rotatably connected to the mounting frame (2) through the rotating shaft (33) to form a clamping opening. The clamping opening is coaxially corresponding to the detection line insertion port (101). The elastic element (32) includes two, which are symmetrically arranged at the bottom of the outer side wall of the two arc-shaped clamping plates (31) for driving the arc-shaped clamping plates (31) to rotate along the rotation axis (33) so that the bottom of the arc-shaped clamping plates (31) moves inward to clamp the detection line insertion head inserted into the detection line insertion port (101); The unlocking component (4) is movably mounted on the mounting bracket (2) and connected to the bottom of the outer wall of the arc-shaped clamping plate (31). It is used to drive the bottom of the arc-shaped clamping plate (31) to open outward against the elastic force of the elastic element (32) to release the lock on the detection line insertion head.

2. The elevator balance coefficient detection terminal according to claim 1, characterized in that, The clamping assembly (3) also includes a synchronizing gear (34), which includes two gears, which are respectively disposed on the rotating shaft (33) at the same end of the two arc-shaped clamping plates (31). The two synchronizing gears (34) are meshed and used to drive the two arc-shaped clamping plates (31) to open or close synchronously.

3. The elevator balance coefficient detection terminal according to claim 1, characterized in that, The elastic element (32) is a compression spring (321). One end of the compression spring (321) is fixedly connected to the outer wall of the arc-shaped clamping plate (31), and the other end is fixedly connected to the mounting bracket (2) to provide a spring force fulcrum for the compression spring (321).

4. An elevator balance coefficient detection terminal according to any one of claims 1-3, characterized in that, The clamping assembly (3) also includes an anti-slip strip (35); The anti-slip strip (35) includes two strips, which are symmetrically arranged at the bottom of the two arc-shaped clamping plates (31) to increase the friction of the bottom of the arc-shaped clamping plates (31).

5. An elevator balance coefficient detection terminal according to any one of claims 1-3, characterized in that, The top of the two arc-shaped clamping plates (31) is provided with an arc-shaped expansion opening (311).

6. The elevator balance coefficient detection terminal according to claim 1, characterized in that, The unlocking component (4) includes a rotating rod (41) and a pull rope (42), wherein, The rotating rod (41) is inserted into the mounting bracket (2) by lateral rotation and is located at the corresponding elastic element (32) outside the arc-shaped clamping plate (31); The pull rope (42) is located between the rotating rod (41) and the bottom of the arc-shaped clamping plate (31). One end of the rope is fixed to the rotating rod (41), and the other end is fixed to the elastic element (32) at the bottom of the outer side wall of the arc-shaped clamping plate (31). When the rotating rod (41) rotates, the pull rope (42) can be wound onto the rotating rod (41), thereby opening the bottom of the arc-shaped clamping plate (31) outward against the elastic force of the elastic element (32) and releasing the lock on the detection line insertion head.

7. The elevator balance coefficient detection terminal according to claim 6, characterized in that, The unlocking component (4) also includes a knob (43), which is located on one end of the rotating rod (41) outside the mounting bracket (2) and is used to drive the rotating rod (41) to rotate.

8. The elevator balance coefficient detection terminal according to claim 1, characterized in that, It also includes a protective cover (5), which is located on the top of the mounting bracket (2), and the protective cover (5) has a clearance hole (51) corresponding to the detection line insertion port (101).

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