Safety grating mechanism capable of being adjusted in self-adaptive mode
The adaptive adjustment safety light curtain mechanism solves the problems of high cost and low efficiency caused by fixed height light curtains, and achieves flexible adaptation of equipment height and stability of protective performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2026-03-27
AI Technical Summary
The existing safety light curtain mechanism has a fixed vertical illumination height, which leads to high equipment replacement and management costs, frequent disassembly and assembly resulting in low efficiency, and improper installation may lead to a decrease in protective performance.
The system employs an adaptively adjustable safety light curtain mechanism. Through the coordination of the horizontal guide rail and the slider for lateral adjustment and the vertical moving module, the height and spacing of the light curtain components can be adjusted to meet the height requirements of different equipment.
It improves the versatility and adaptability of the safety light curtain mechanism, reduces equipment replacement costs, increases production efficiency, and ensures the stability of protective performance.
Smart Images
Figure CN224050139U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to grating technical field, concretely is a kind of self-adapting adjustable safety grating mechanism. BACKGROUND
[0002] In the field of industrial automation production, warehousing logistics, safety grating as an important safety protection device, through the emission and reception of infrared light beam forms light curtain barrier, can effectively avoid personnel from mis-touching the running mechanical equipment and cause safety accident.
[0003] At present, the irradiation height of commonly used grating protection mechanism on the vertical plane is usually a fixed value, and this design leads to the fact that different sizes of grating must be used to match different heights of equipment.
[0004] This design of fixed vertical irradiation height has significant defects. On the one hand, enterprises need to reserve safety grating of multiple specifications according to the height of equipment, which not only greatly increases the equipment procurement cost and warehouse management difficulty, but also leads to low resource allocation efficiency. On the other hand, when the equipment on the production line is updated or adjusted in height, the operator needs to spend a lot of time to disassemble and replace grating of different sizes, which not only reduces production efficiency, but also may cause the grating protection performance to decline or even fail due to improper installation and debugging during frequent disassembly and assembly. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies of the prior art, the utility model provides a self-adapting adjustable safety grating mechanism to solve the problems raised in the background art.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: a self-adapting adjustable safety grating mechanism, comprising a horizontal guide rail, two sliding blocks, two vertical moving modules and two grating assemblies.
[0007] Both of the sliding blocks are slidingly connected inside the horizontal guide rail, and a screw is threadedly connected inside the sliding block, one end of which abuts against the inner bottom wall of the horizontal guide rail.
[0008] Both of the vertical moving modules are vertically installed on both of the sliding blocks, both of the grating assemblies are arranged on the opposite side of both of the vertical moving modules, and are drivingly connected with both of the vertical moving modules.
[0009] One of the grating assemblies comprises a mounting shell drivingly connected to the vertical moving module, a first laser emitter is arranged at the bottom of the left mounting shell, a first receiver is arranged at the bottom of the right mounting shell corresponding to the first laser emitter, and the first receiver is electrically connected with the right vertical moving module.
[0010] The front side of the inner wall of the mounting shell is provided with a sliding groove, the inside of the sliding groove is slidably connected with a plurality of mounting blocks, the side of the plurality of mounting blocks away from the vertical moving module is provided with a light source assembly, and the side of the plurality of mounting blocks close to the vertical moving module is provided with a connecting shaft.
[0011] The inside of the mounting shell is provided with an adjusting assembly in transmission connection with the plurality of connecting shafts, so as to adjust the spacing between adjacent two mounting blocks and the light source assemblies.
[0012] Further, the shape of the cross section of the upper end of the mounting block is an I-shaped section.
[0013] Further, the lowermost mounting block is fixed on the mounting shell through bolts.
[0014] Further, the adjusting assembly comprises a plurality of driving rods.
[0015] The plurality of driving rods are movably sleeved on the outside of the plurality of connecting shafts, adjacent two driving rods are hingedly connected through a hinge shaft, the top of the mounting shell is provided with an electric push rod, the output end of the electric push rod is provided with a sleeve ring, and the sleeve ring is sleeved on the outside of the uppermost connecting shaft.
[0016] Further, the top of the uppermost mounting block is provided with a second laser emitter, and the top of the right uppermost mounting block is provided with a second receiver corresponding to the second laser emitter.
[0017] Further, the second receiver is electrically connected with the right electric push rod.
[0018] Compared with the prior art, the technical scheme has the following beneficial effects:
[0019] The self-adaptive adjusting safety grating mechanism can quickly adjust the height of the mounting shell according to different height equipment through the horizontal guide rail and the transverse adjusting structure of the sliding block and the vertical moving module driving the grating assembly to move up and down, so that the protective light curtain can quickly adjust the height of the mounting shell according to different height equipment, so that the safety grating mechanism can adapt to the protection requirements of various equipment, further improve the universality and adaptability of the mechanism, and reduce the cost of replacing the safety grating due to the change of the equipment height. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a structural schematic view of the utility model;
[0021] Figure 2 It is a structural schematic view of the left grating assembly of the utility model;
[0022] Figure 3 It is a structural schematic view of the right grating assembly of the utility model;
[0023] Figure 4 For the utility model Figure 3 The structure of A in the figure is enlarged and shown schematically.
[0024] Figure 5 For the utility model
[0025] Figure 6 For the utility model Figure 5 The structure of A in the figure is enlarged and shown schematically.
[0026] In the figure: 1, horizontal guide rail; 2, sliding block; 3, vertical moving module; 4, grating assembly; 401, mounting shell; 402, first laser emitter; 403, second receiver; 404, mounting block; 405, light source assembly; 406, connecting shaft; 407, driving rod; 408, electric push rod; 409, collar; 410, second laser emitter; 411, second receiver; 5, bolt. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0028] Please refer to Figures 1-6 The safety grating mechanism can be self-adaptively adjusted, and is used for adjusting the protection range of the grating mechanism in the vertical plane.
[0029] Specifically, it comprises horizontal guide rail 1, two sliding blocks 2, two vertical moving modules 3 and two grating assemblies 4. The two sliding blocks 2 are both slidingly connected inside the horizontal guide rail 1.
[0030] The two vertical moving modules 3 are respectively vertically installed on the two sliding blocks 2, and the two grating assemblies 4 are respectively arranged on the opposite sides of the two vertical moving modules 3 and are respectively in transmission connection with the two vertical moving modules 3.
[0031] In actual setting, the sliding blocks 2 are respectively located inside the horizontal guide rail 1 and can slide horizontally along the horizontal guide rail 1, and are used for adjusting the horizontal spacing of the two grating assemblies 4. The sliding blocks 2 are internally provided with threaded holes, the bolts 5 pass through the threaded holes and abut against the inner bottom wall of the horizontal guide rail 1 at the lower end, and the sliding blocks 2 can be fixed or released by tightening or loosening the bolts 5.
[0032] In addition, the vertical movement module 3 is installed on the sliding block 2 and can move transversely with the sliding block 2, and the grating assembly 4 is driven by the vertical movement module 3 to move in the vertical direction, so that the height of the grating assembly 4 in the vertical plane is adjusted.
[0033] In detail, one of the grating assemblies 4 comprises a mounting shell 401 which is drivingly connected to the vertical movement module 3, the bottom of the left mounting shell 401 is provided with a first laser emitter 402, and the bottom of the right mounting shell 401 is provided with a first receiver 403 corresponding to the first laser emitter 402, and the first receiver 403 is electrically connected to the right vertical movement module 3.
[0034] A sliding groove is formed in the front side of the inner wall of the mounting shell 401, a plurality of mounting blocks 404 are slidingly connected in the sliding groove, a light source assembly 405 is mounted on the side of each of the plurality of mounting blocks 404 away from the vertical movement module 3, and a connecting shaft 406 is arranged on the side of each of the plurality of mounting blocks 404 close to the vertical movement module 3.
[0035] An adjusting assembly which is drivingly connected to the plurality of connecting shafts 406 is arranged in the mounting shell 401, so as to adjust the spacing between adjacent two mounting blocks 404 and the light source assemblies 405.
[0036] In actual arrangement, the plurality of mounting blocks 404 and the light source assemblies 405 form an adjustable light source array, the position of the mounting block 404 is adjusted by the operation of the driving assembly, the spacing between the light source assemblies 405 is changed, and thus the height and density of the protective light curtain are adjusted.
[0037] In actual use, the left vertical movement module 3 serves as a starting end for height adjustment, after the driving motor of the left vertical movement module 3 receives an initial instruction from the control system, the left mounting shell 401 is driven to move in the vertical direction by the screw-nut pair, at this time, the light source assemblies 405 in the left mounting shell 401 move synchronously with the left mounting shell 401, and the vertical position of the left first laser emitter 402 changes, in this process, the displacement of the left vertical movement module 3 is determined by the control system according to the preset value or the real-time detection value of the equipment height, and preliminary adaptation of the protection height is realized.
[0038] Further, when the right mounting shell 401 moves with the right vertical movement module 3, the second receiver 403 at the bottom of the right mounting shell 401 continuously detects the laser signal emitted by the left first laser emitter 402, when the left and right mounting shells 401 reach the same height in the vertical direction, the second receiver 403 accurately receives the laser beam, an internal photodiode converts the optical signal into an electrical signal, and transmits the electrical signal to the controller of the left vertical movement module 3 through a cable, the electrical signal triggers the interrupt response of the controller, and immediately outputs a stop instruction to make the left driving motor lose power and stop rotating, at the same time, the right vertical movement module 3 can also stop moving through synchronous logic, and accurate alignment of the two mounting shells 401 is ensured.
[0039] Further, the upper end of the mounting block 404 is in the shape of an I-beam, and the lowermost mounting block 404 is fixed to the mounting shell 401 by bolts.
[0040] In more detail, the adjusting assembly includes a plurality of drive rods 407, each of which is movably sleeved outside the plurality of connecting shafts 406, and adjacent two drive rods 407 are hinged by a hinge shaft. The top of the mounting shell 401 is provided with an electric push rod 408, and the output end of the electric push rod 408 is provided with a sleeve ring 409 sleeved outside the uppermost connecting shaft 406.
[0041] Further, the top of the uppermost mounting block 404 is provided with a second laser emitter 410, and the top of the right uppermost mounting block 404 is provided with a second receiver 411 corresponding to the second laser emitter 410. The second receiver 411 is electrically connected to the right electric push rod 408.
[0042] In actual use, when the electric push rod 408 is extended or retracted, the sleeve ring 409 drives the uppermost connecting shaft 406 to move up and down. Since adjacent drive rods 407 are hinged by a hinge shaft and the drive rods 407 are movably sleeved outside the connecting shafts 406, this movement is transmitted to the connecting shafts 406 below through the connecting rod mechanism of the drive rods 407, thereby pushing the mounting block 404 to slide in the sliding groove of the mounting shell 401, and finally achieving dynamic adjustment of the distance between adjacent mounting blocks 404 and light source assemblies 405.
[0043] In actual setting, the second laser emitter 410 is installed on the top of the left uppermost mounting block 404, and the second receiver 411 is provided on the top of the right uppermost mounting block 404. They detect whether the left and right uppermost mounting blocks 404 and the light source assemblies 405 are on the same horizontal line through a horizontal light path. The core target is to further calibrate the horizontal position of the uppermost mounting block 404 after adjusting the overall height of the mounting shell 401, to ensure that the protective light curtain formed by the uppermost light source assembly 405 and the lower light source assembly 405 remains horizontal in the vertical plane, and to avoid the formation of a blind area due to local deviation.
[0044] In actual use, the left second laser emitter 410 continuously emits a horizontal laser beam. When the left and right uppermost mounting blocks 404 are on the same horizontal line, the laser beam accurately enters the light-sensitive area of the right second receiver 411. If the uppermost mounting block 404 deviates due to mechanical errors of the adjusting assembly or external interference, the laser beam will deviate from the second receiver 411, resulting in a decrease or interruption of the received signal strength. When the laser signal deviation is detected, an electric signal is immediately transmitted to the control unit of the electric push rod 408. The control unit calculates the displacement amount that needs to be adjusted according to the signal deviation, and drives the electric push rod 408 to extend or retract slightly.
[0045] In detail, the extension and retraction of the electric push rod 408 drives the uppermost connecting shaft 406 to move up and down through the sleeve ring 409, and since the drive rod 407 is connected to the adjacent connecting shaft 406 through the hinge shaft, the movement is transmitted to the uppermost mounting block 404 through the linkage mechanism composed of the drive rod 407, pushing it to slide in the sliding groove of the mounting shell 401 until the second receiver 411 re-receives the stable laser signal, at which time the left and right uppermost mounting blocks 404 and the light source assembly 405 restore to the same horizontal line, the electric push rod 408 stops moving, and the closed-loop calibration is completed.
[0046] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
[0047] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A self-adjustable safety light curtain mechanism, characterized in that: It includes a horizontal guide rail (1), two sliders (2), two vertical moving modules (3) and two grating assemblies (4); Both sliders (2) are slidably connected inside the horizontal guide rail (1), and a bolt (5) with one end abutting against the inner bottom wall of the horizontal guide rail (1) is threaded inside the slider (2). The two vertical moving modules (3) are respectively vertically mounted on the two sliders (2), and the two grating assemblies (4) are respectively disposed on opposite sides of the two vertical moving modules (3) and are respectively connected to the two vertical moving modules (3) in a transmission manner; One of the grating components (4) includes a mounting housing (401) that is driven to the vertical moving module (3). A first laser emitter (402) is provided at the bottom of the mounting housing (401) on the left side. Corresponding to the first laser emitter (402), a first receiver (403) is provided at the bottom of the mounting housing (401) on the right side. The first receiver (403) is electrically connected to the vertical moving module (3) on the right side. A sliding groove is provided on the front side of the inner wall of the mounting shell (401). Several mounting blocks (404) are slidably connected inside the sliding groove. A light source assembly (405) is installed on the side of the mounting blocks (404) away from the vertical moving module (3). A connecting shaft (406) is provided on the side of the mounting blocks (404) close to the vertical moving module (3). The mounting housing (401) is provided with an adjustment assembly that is drivenly connected to a plurality of the connecting shafts (406) to adjust the spacing between two adjacent mounting blocks (404) and the light source assembly (405).
2. The adaptively adjustable safety light curtain mechanism according to claim 1, characterized in that: The upper cross-section of the mounting block (404) is I-shaped.
3. The adaptively adjustable safety light curtain mechanism according to claim 1, characterized in that: The mounting block (404) at the bottom is fixed to the mounting shell (401) by bolts.
4. The adaptively adjustable safety light curtain mechanism according to claim 1, characterized in that: The adjustment assembly includes several drive rods (407). Several drive rods (407) are respectively movably sleeved on the outside of several connecting shafts (406). Two adjacent drive rods (407) are hinged by a hinge shaft. An electric push rod (408) is provided on the top of the mounting shell (401). A collar (409) is installed on the output end of the electric push rod (408). The collar (409) is sleeved on the outside of the uppermost connecting shaft (406).
5. The adaptively adjustable safety light curtain mechanism according to claim 4, characterized in that: A second laser emitter (410) is provided on the top of the uppermost mounting block (404), and a second receiver (411) is provided on the top of the uppermost mounting block (404) on the right side corresponding to the second laser emitter (410).
6. The adaptively adjustable safety light curtain mechanism according to claim 5, characterized in that: The second receiver (411) is electrically connected to the electric push rod (408) on the right.