A synchronous belt latch device

Abstract

The utility model discloses a synchronous belt lock catch device, include: installation framework, series connection framework, main connecting shaft, main connecting shaft fixed plate, main connecting shaft fixed bolt subassembly, vice connecting axle, vice connecting axle fixed plate, vice connecting axle fixed bolt subassembly and synchronous belt fixer, the utility model discloses the alternate structure of series connection framework installs synchronous belt fixer, on one hand can lock synchronous toothed belt, prevent its loosening, guarantee synchronous toothed belt firm locking in the lifting or counterweight end, further guarantee the stability and security of lifting, on the other hand prevents the cross winding phenomenon between two synchronous toothed belts through alternate structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of special parking equipment, specifically relating to a synchronous belt locking device. Background Technology

[0002] With the upgrading of vertical transportation needs in modern buildings, the transmission system of elevators is gradually transforming from traditional wire ropes and chains to synchronous belt drives. Synchronous belts, with their advantages of high transmission precision, low operating noise, and long maintenance cycles, are increasingly widely used in elevator applications such as residential, medical, and logistics, where stable operation is crucial. The synchronous belt locking device, as a core safety component of the synchronous belt transmission system, must not only ensure a reliable connection between the synchronous belt and the car / lifting platform but also perform critical functions such as positioning and locking, preventing accidental slippage, and buffering load impacts. Its performance directly determines the safety level and operational stability of the synchronous belt elevator. Currently, synchronous belt locking devices for elevators still face multiple technical bottlenecks in practical applications: First, insufficient transmission adaptability. Existing locking devices are mostly of a general design, failing to fully match the tooth structure and tension characteristics of the synchronous belt. During high-speed operation of high-rise elevators or heavy-load start-stop of logistics elevators, problems such as misalignment between the locking device and the synchronous belt teeth, and failure of tension compensation easily occur, leading to transmission slippage or localized stress concentration, shortening the service life of the synchronous belt and locking device. Second, shortcomings in safety protection. Most synchronous belt locking devices rely solely on mechanical engagement for locking, lacking a real-time detection mechanism for synchronous belt breakage or locking device loosening. If synchronous belt teeth become dislodged or locking device components wear out, emergency braking cannot be triggered in time, easily causing safety accidents such as car descent or tilting. Third, poor ease of installation and maintenance. Traditional synchronous belt locking devices mostly use integrated welding or multi-bolt fixing structures. When the synchronous belt needs replacement or locking device components need repair, a large number of related components must be disassembled, which is not only time-consuming and labor-intensive but may also affect transmission stability due to insufficient reinstallation precision, increasing elevator downtime maintenance costs.

[0003] Therefore, overcoming the above problems is an urgent issue that needs to be addressed. Summary of the Invention

[0004] The main purpose of this utility model is to overcome the shortcomings and deficiencies of the prior art and provide a synchronous belt locking device. By locking the synchronous toothed belt, it prevents it from loosening and ensures that the synchronous toothed belt is firmly locked to the lifting or counterweight end, thereby ensuring the stability and safety of the lifting. The alternating structure also prevents the synchronous toothed belt from crossing and tangling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a timing belt locking device, including a mounting frame, a series frame, a main connecting shaft, a main connecting shaft fixing plate, a main connecting shaft fixing bolt assembly, a secondary connecting shaft, a secondary connecting shaft fixing plate, a secondary connecting shaft fixing bolt assembly, and a timing belt fastener. The series frame includes a main shaft mounting hole and a secondary shaft mounting hole. At least two timing belt fasteners are provided, with adjacent timing belt fasteners staggered. The lower end of each timing belt fastener has a mounting hole. The series frame is installed in the mounting frame through the main shaft mounting hole. The main connecting shaft is connected to the main shaft mounting hole through the mounting hole and is fixed to the outside of the mounting frame using the main connecting shaft fixing plate and the main connecting shaft fixing bolt assembly. The timing belt fastener is connected to the series frame through the secondary connecting shaft and is fixed to the series frame using the secondary connecting shaft fixing plate and the secondary connecting shaft fixing bolt assembly.

[0006] As a preferred technical solution, the mounting frame includes long bolts, bolt mounting plates, triangular mounting plates, and connecting plates. The number of long bolts and triangular mounting plates is the same. Bolt mounting holes are provided on both sides of the long side of the bolt mounting plate, and threads are provided on the inner surface of the bolt mounting holes. The triangular mounting plate is provided with a connecting plate placement groove, a spindle mounting hole, a bolt placement through hole, and a spare reinforcing through hole. The connecting plate placement groove is located at the top of the triangular mounting plate, and the opening direction of the bolt placement groove is collinear with the axial direction of the bolt mounting hole. The long bolts are installed in the bolt mounting plate through the bolt mounting holes. The triangular mounting plates are vertically welded above the inner surface of the bolt mounting plates. The connecting plates are arranged between the triangular mounting plates, and the two ends of the connecting plates are rigidly connected to the connecting plate placement groove by fillet welds.

[0007] As a preferred technical solution, the mounting frame is provided with a set of long bolts and triangular mounting plates, with two long bolts and two triangular mounting plates in each set.

[0008] As a preferred technical solution, the tandem frame includes a shaft mounting plate and a rectangular tube. The shaft mounting plate has a perforated irregular plate structure, including a main shaft mounting hole and a secondary shaft mounting hole. The lower end of the shaft mounting plate is welded to the outer surface or both sides of the rectangular tube. The timing belt retainer is fixed to the secondary shaft mounting hole on the same side of the shaft mounting plate.

[0009] As a preferred technical solution, the shaft mounting plate includes a double-sided flange and a single-sided flange. The double-sided flange includes one main shaft mounting hole and two auxiliary shaft mounting holes. The single-sided flange includes one main shaft mounting hole and one auxiliary shaft mounting hole. The double-sided flange and the single-sided flange are arranged in parallel. The double-sided flange is symmetrically welded to both sides of the rectangular tube, and the single-sided flange is alternately welded to the outer surface of the rectangular tube.

[0010] As a preferred technical solution, when the number of single-sided flanges is 2, the auxiliary shaft mounting holes of the two single-sided flanges are set to opposite sides; when the number of single-sided flanges is greater than 2, the auxiliary shaft mounting holes of the two adjacent single-sided flanges are set to opposite sides.

[0011] As a preferred technical solution, the main shaft mounting hole and the auxiliary shaft mounting hole of the shaft mounting plate are not collinear. If the auxiliary shaft mounting hole is located below the main shaft mounting hole, the double-sided flange and the single-sided flange are in opposite directions. If the auxiliary shaft mounting hole is located above the main shaft mounting hole, both the double-sided flange and the single-sided flange are vertically upward and welded to the same side of the rectangular tube.

[0012] As a preferred technical solution, the main shaft mounting hole and the auxiliary shaft mounting hole of the shaft mounting plate are arranged in the same line, and the shaft mounting plate is vertically upward and welded to the same side of the rectangular tube.

[0013] As a preferred technical solution, the timing belt fixer includes a timing belt fixing bracket, a timing belt locking block, and a timing belt locking bolt assembly. The timing belt locking block presses the timing toothed belt with the timing belt locking bolt assembly and locks it onto the timing belt fixing bracket.

[0014] As a preferred technical solution, the timing belt locking block is provided with a plurality of grooves, the grooves matching the tooth profile of the timing toothed belt, and the timing toothed belt is pressed by the timing belt locking bolt assembly and locked onto the timing belt fixing bracket.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: This utility model uses an alternating structure of a series frame to install the synchronous belt fixer. On the one hand, it can lock the synchronous toothed belt to prevent it from loosening and ensure that the synchronous toothed belt is firmly locked to the lifting or counterweight end, thereby ensuring the stability and safety of the lifting. On the other hand, the alternating structure prevents the two synchronous toothed belts from crossing and tangling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a two-sided oblique view of the structure of the synchronous belt locking device according to an embodiment of the present utility model; Figure 2 This is a front view of the synchronous belt locking device according to an embodiment of the present utility model; Figure 3This is a left view of the synchronous belt locking device according to an embodiment of the present utility model; Figure 4 The front and left views of the mounting frame according to an embodiment of this utility model; Figure 5 This is a schematic diagram of the series structure of an embodiment of the present utility model; Figure 6 This is a front view of the timing belt fixer according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the structure of the synchronous belt locking block in an embodiment of the present invention.

[0018] Numbering Explanation: 211-Mounting Frame; 212-Series Frame; 213-Main Connecting Shaft; 214-Main Connecting Shaft Fixing Plate; 215-Main Connecting Shaft Fixing Bolt Assembly; 216-Secondary Connecting Shaft; 217-Secondary Connecting Shaft Fixing Plate; 218-Secondary Connecting Shaft Fixing Bolt Assembly; 219-Synchronous Belt Fixer; 219-1-Synchronous Belt Fixing Bracket; 219-2-Synchronous Belt Locking Block; 219-3-Synchronous Belt Locking Bolt Assembly. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort are within the scope of protection of the present application.

[0020] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0021] The directional terms used in this embodiment are associated with those shown in the accompanying drawings, particularly the terms "up," "down," "left," "right," "front," "back," "adjacent," "alternating," "collinear," "parallel," and "perpendicular." Assuming the axis of the "main shaft" is taken as the reference line, the two sides pointed to by the reference line in this embodiment are "left" and "right," above the reference line is "up," and the area perpendicular to the reference line and pointing to the front of the device is "front."

[0022] Please see Figures 1 to 3This embodiment provides a synchronous belt locking device, including a mounting frame 211, a series frame 212, a main connecting shaft 213, a main connecting shaft fixing plate 214, a main connecting shaft fixing bolt assembly 215, a secondary connecting shaft 216, a secondary connecting shaft fixing plate 217, a secondary connecting shaft fixing bolt assembly 218, and a synchronous belt fastener 219. The series frame 212 includes a main shaft mounting hole and a secondary shaft mounting hole. At least two synchronous belt fasteners 219 are provided, with adjacent synchronous belt fasteners 219 staggered for synchronous operation. The lower end of the retainer 219 is provided with a mounting hole; the series frame 212 is installed in the mounting frame 211 through the main shaft mounting hole, the main connecting shaft 213 is connected to the main shaft mounting hole through the mounting hole, and is fixed to the outside of the mounting frame 211 by the main connecting shaft fixing plate 214 and the main connecting shaft fixing bolt assembly 215, the timing belt retainer 219 is connected to the series frame 212 through the auxiliary connecting shaft 216, and is fixed to the series frame 212 by the auxiliary connecting shaft fixing plate 217 and the auxiliary connecting shaft fixing bolt assembly 218.

[0023] In particular, such as Figure 4 As shown, the mounting frame 211 includes long bolts, bolt mounting plates, triangular mounting plates, and connecting plates. A set of long bolts and triangular mounting plates is provided, with two long bolts and two triangular mounting plates in each set. Bolt mounting holes are provided on both sides of the long side of the bolt mounting plate, and threads are provided on the inner surface of the bolt mounting holes. The triangular mounting plate has a connecting plate placement groove, a spindle mounting hole, a bolt placement through hole, and a spare reinforcing through hole. The connecting plate placement groove is located at the top of the triangular mounting plate, and the opening direction of the bolt placement groove is collinear with the axial direction of the bolt mounting hole. The long bolts are installed in the bolt mounting plates through the bolt mounting holes. The triangular mounting plates are vertically welded above the inner surface of the bolt mounting plates. The connecting plates are arranged between the triangular mounting plates, and both ends of the connecting plates are rigidly connected to the connecting plate placement groove by fillet welds.

[0024] Specifically, the tandem frame 212 includes a shaft mounting plate and a rectangular tube. The shaft mounting plate has a perforated irregular plate structure, including a main shaft mounting hole and a secondary shaft mounting hole. The lower end of the shaft mounting plate is welded to the outer surface or both sides of the rectangular tube.

[0025] It can be explained that the perforated irregular plate structure requires strong load-bearing capacity and generally possesses advantages such as strength, toughness, wear resistance, lightweight, and durability. Several through holes are needed to accommodate fixed connections with other components. Optionally, carbon steel, alloy structural steel, aluminum alloy, or other alloys can be used. The material surface often undergoes processes such as painting, galvanizing, and oxidation treatment to enhance corrosion resistance and extend the service life of the shaft mounting plate.

[0026] Further, see Figure 5The shaft mounting plate is specifically configured as a double-sided flange and a single-sided flange. The double-sided flange includes one main shaft mounting hole and two auxiliary shaft mounting holes, and the single-sided flange includes one main shaft mounting hole and one auxiliary shaft mounting hole. When installing the timing belt fixer 219, the mounting holes of the timing belt fixer 219 are aligned with the auxiliary shaft mounting holes of the double-sided flange or the single-sided flange, and fixed to the tandem frame 212 by the auxiliary connecting shaft fixing plate 217 and the auxiliary connecting shaft fixing bolt assembly 218. The double-sided flange, as the edge, is welded to both sides of the rectangular tube, and the single-sided flange is set in the middle of the rectangular tube. This arrangement saves space and facilitates the installation of the timing belt fixer 219, and also reduces the overall weight of the device.

[0027] It should be noted that the welding positions and opening positions of double-sided and single-sided flanges are diverse. The welding and opening positions are all designed to facilitate the installation of the timing belt retainer 219 and the assembly of the timing belt locking device. The main principle is that all shaft mounting plates are provided with main shaft mounting holes and auxiliary shaft mounting holes. The lower end of the shaft mounting plate is welded to the outer surface or both sides of the rectangular tube. The timing belt retainer 219 is fixed to the auxiliary shaft mounting hole on the same side of the shaft mounting plate. Specific configurations can be achieved as follows: (1) such as Figure 5 The diagram illustrates the design of double-sided and single-sided flanges. The double-sided flange includes one main shaft mounting hole and two auxiliary shaft mounting holes, while the single-sided flange includes one main shaft mounting hole and one auxiliary shaft mounting hole.

[0028] (2) Setting of shaft mounting plate.

[0029] Double-sided flanges are welded to both sides of the rectangular tube, and a single-sided flange is alternately welded to the outer surface in the middle. When there are two single-sided flanges, the auxiliary shaft mounting holes of the two single-sided flanges are set to opposite sides. When there are more than two single-sided flanges, the auxiliary shaft mounting holes of the two adjacent single-sided flanges are set to opposite sides.

[0030] (3) Regarding the specific welding method.

[0031] When the main spindle mounting hole and the secondary spindle mounting hole are not collinear, if the secondary spindle mounting hole is located below the main spindle mounting hole, the double-sided flange and the single-sided flange are oriented in opposite directions, i.e., one is vertically upward and the other is vertically downward; if the secondary spindle mounting hole is located above the main spindle mounting hole, both the double-sided flange and the single-sided flange are vertically upward and welded to the same side of the rectangular tube.

[0032] When the main spindle mounting hole and the secondary spindle mounting hole are collinear, the shaft mounting plates are all set vertically upward and welded to the same side of the rectangular tube.

[0033] Finally, the timing belt retainer 219 is explained in detail, such as... Figures 6-7 .

[0034] Specifically, the timing belt retainer 219 includes a timing belt fixing bracket 219-1, a timing belt locking block 219-2, and a timing belt locking bolt assembly 219-3. The timing belt locking block 219-2 presses the timing toothed belt with the timing belt locking bolt assembly 219-3 and locks it onto the timing belt fixing bracket.

[0035] like Figure 7 As shown, the groove matches the tooth profile of the synchronous toothed belt, and the synchronous toothed belt is pressed by the synchronous belt locking bolt assembly 219-3 and locked onto the synchronous belt fixing bracket 219-1.

[0036] It should be noted that, for the sake of simplicity, the foregoing embodiments are described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A timing belt locking device, characterized in that, The system includes a mounting frame, a series frame, a main connecting shaft, a main connecting shaft fixing plate, a main connecting shaft fixing bolt assembly, a secondary connecting shaft, a secondary connecting shaft fixing plate, a secondary connecting shaft fixing bolt assembly, and a timing belt fastener. The series frame includes a main shaft mounting hole and a secondary shaft mounting hole. At least two timing belt fasteners are provided, with adjacent timing belt fasteners staggered. Each timing belt fastener has a mounting hole at its lower end. The series frame is installed in the mounting frame through the main shaft mounting hole. The main connecting shaft is connected to the main shaft mounting hole through the mounting hole and is fixed to the outside of the mounting frame using the main connecting shaft fixing plate and the main connecting shaft fixing bolt assembly. The timing belt fastener is connected to the series frame through the secondary connecting shaft and is fixed to the series frame using the secondary connecting shaft fixing plate and the secondary connecting shaft fixing bolt assembly.

2. The timing belt locking device according to claim 1, characterized in that, The mounting frame includes long bolts, bolt mounting plates, triangular mounting plates, and connecting plates. The number of long bolts and triangular mounting plates is the same. Bolt mounting plates have bolt mounting holes on both sides of their long sides, and the inner surface of the bolt mounting holes is threaded. The triangular mounting plates have connecting plate placement grooves, spindle mounting holes, bolt placement through holes, and spare reinforcing through holes. The connecting plate placement groove is located at the top of the triangular mounting plate, and the opening direction of the bolt placement groove is collinear with the axial direction of the bolt mounting holes. The long bolts are installed in the bolt mounting plates through the bolt mounting holes. The triangular mounting plates are vertically welded above the inner surface of the bolt mounting plates. The connecting plates are arranged between the triangular mounting plates, and the two ends of the connecting plates are rigidly connected to the connecting plate placement grooves by fillet welds.

3. The timing belt locking device according to claim 2, characterized in that, The mounting frame is provided with a set of long bolts and triangular mounting plates, with two long bolts and two triangular mounting plates in each set.

4. The timing belt locking device according to claim 1, characterized in that, The tandem frame includes a shaft mounting plate and a rectangular tube. The shaft mounting plate has a perforated irregular shape and includes a main shaft mounting hole and a secondary shaft mounting hole. The lower end of the shaft mounting plate is welded to the outer surface or both sides of the rectangular tube. The timing belt retainer is fixed to the secondary shaft mounting hole on the same side of the shaft mounting plate.

5. The timing belt locking device according to claim 4, characterized in that, The shaft mounting plate includes a double-sided flange and a single-sided flange. The double-sided flange includes one main shaft mounting hole and two auxiliary shaft mounting holes. The single-sided flange includes one main shaft mounting hole and one auxiliary shaft mounting hole. The double-sided flange and the single-sided flange are arranged in parallel. The double-sided flange is symmetrically welded to both sides of the rectangular tube, and the single-sided flange is alternately welded to the outer surface of the rectangular tube.

6. The timing belt locking device according to claim 5, characterized in that, When the number of single-sided flanges is 2, the auxiliary shaft mounting holes of the two single-sided flanges are set to opposite sides. When the number of single-sided flanges is greater than 2, the auxiliary shaft mounting holes of the two adjacent single-sided flanges are set to opposite sides.

7. The timing belt locking device according to claim 4, characterized in that, The main shaft mounting hole and the auxiliary shaft mounting hole of the shaft mounting plate are not collinear. If the auxiliary shaft mounting hole is located below the main shaft mounting hole, the double-sided flange and the single-sided flange are in opposite directions. If the auxiliary shaft mounting hole is located above the main shaft mounting hole, both the double-sided flange and the single-sided flange are vertically upward and welded to the same side of the rectangular tube.

8. The timing belt locking device according to claim 4, characterized in that, The main shaft mounting hole and the auxiliary shaft mounting hole of the shaft mounting plate are arranged in the same line. The shaft mounting plate is vertically upward and welded to the same side of the rectangular tube.

9. The timing belt locking device according to claim 1, characterized in that, The timing belt fastener includes a timing belt fixing bracket, a timing belt locking block, and a timing belt locking bolt assembly. The timing belt locking block presses the timing toothed belt with the timing belt locking bolt assembly and locks it onto the timing belt fixing bracket.

10. The timing belt locking device according to claim 9, characterized in that, The timing belt locking block is provided with several grooves, which match the tooth shape of the timing toothed belt. The timing belt locking bolt assembly presses the timing toothed belt and locks it onto the timing belt fixing bracket.

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