Steel grating with anti-theft structure

Abstract

The utility model discloses a steel grating with anti -theft structure, including steel grating body, the steel grating body is sleeved and is connected with the mounting seat, and the both sides outer wall of steel grating body all are fixedly connected with square tube, and the both ends of square tube all are installed with anti -theft subassembly, and the anti -theft subassembly includes fixed base, and fixed base fixedly connected in square tube, and the sliding connection with slider in fixed base, and the fixed connection with lock block on slider, the utility model only needs to press down steel grating body, and can complete locking through the lock block automatic ejection of anti -theft subassembly and inserts into lock groove, and the operation is convenient, and when unlocking, the eccentric wheel is used to limit slider reset, ensures that lock block stable keeps unlocking state, and need not to continuously exert force, solves the inconvenient problem of dismounting of prior art, and unlocking needs special tool and twists the rotating block and drives the eccentric wheel unlocking, only twists the rotating block, avoids ordinary tool illegal operation, and greatly promotes the anti -theft effect, and gives consideration to construction overhauling efficiency and anti -theft reliability, effectively makes up prior art defects.

Description

Technical Field

[0001] This utility model relates to the field of steel grating technology, and in particular to a steel grating with an anti-theft structure. Background Technology

[0002] In municipal drainage, road engineering, and factory drainage systems, drainage ditch covers, as key protective components, are typically made of steel grating. Their high strength, corrosion resistance, and excellent drainage properties effectively prevent people from falling and debris from entering the drainage ditch, ensuring the normal operation of the drainage system and public safety. However, due to the recycling value of steel grating and the lack of effective supervision in some application scenarios, theft of drainage ditch cover steel grating is frequent. This not only exposes the drainage system, causing road safety hazards and waterlogging, but also requires significant manpower and resources for replacement, increasing municipal and enterprise operating costs. Therefore, there is an urgent need for improved anti-theft performance of steel grating used for drainage ditch covers. To address the theft problem of steel grating, existing technologies use bolts to fix the steel grating, but bolts are easily removed, resulting in poor anti-theft effectiveness. Some technologies, such as the anti-theft steel grating disclosed in Chinese Utility Model Patent No. CN218757858U, employ a positioning plate pre-embedded in the side wall of the drainage ditch, connecting and fixing the positioning plate to the ditch. The steel grating body is then placed on the positioning plate, which supports both the steel grating body and the mounting plate. A locking mechanism connects and fixes the mounting plate to the positioning plate, preventing the steel grating body and mounting plate from detaching from the positioning plate. This effectively prevents the theft of the steel grating body while protecting the drainage ditch.

[0003] However, the existing anti-theft steel grating technology mentioned above still has the following defects in practical applications: 1. When unlocking, the locking rod needs to be rotated to drive the gear to rotate. The gear drives the toothed plate to pull the lock block to move in the direction of the gear to release the lock block from the lock groove. However, this mechanism relies on the spring to provide the toothed plate with the reset force, and there is no lock block state locking structure designed. This means that after unlocking, the locking rod must be kept stationary to keep the lock block in the unlocked state. Otherwise, the lock block will reset and relock under the action of the spring force, which greatly increases the difficulty of operation in the disassembly and assembly of the steel grating and reduces the efficiency of construction and maintenance; 2. The locking rod is inserted into the square groove to rotate the second blocking ring, thereby driving the gear to achieve unlocking. However, the anti-theft performance of the square groove structure is extremely poor. It can be turned with a regular flathead screwdriver. Even if the square groove is changed to other irregular grooves, the second blocking ring can be turned with common tools such as pliers. Once the second blocking ring is turned, the locking mechanism will fail and cannot prevent the steel grating from being illegally disassembled. It cannot achieve a reliable anti-theft function and is difficult to deal with the theft risk in actual scenarios. Utility Model Content

[0004] The purpose of this invention is to provide a steel grating with an anti-theft structure to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a steel grating with an anti-theft structure, comprising a steel grating body, a mounting base sleeved on the steel grating body, square tubes fixedly connected to both outer walls of the steel grating body, anti-theft components installed at both ends of the square tubes, the anti-theft components including a fixing base, the fixing base being fixedly connected inside the square tube, a slider being slidably connected inside the fixing base, a locking block being fixedly connected to the slider, a locking groove being opened on the mounting base at the position corresponding to the locking block, and the locking block being inserted into the locking groove, a second through groove being opened on the slider, an eccentric wheel being provided in the second through groove, and the eccentric wheel being hinged to the fixing base, a first through groove being provided on one side of the second through groove, and the first through groove being opened on the fixing base, a stop block being sleeved in the first through groove, and the stop block being fixedly connected to the fixing base, a first spring being fixedly connected to the stop block, and the other end of the first spring being provided in the first through groove.

[0006] Preferably, the eccentric wheel has a groove, a limit rod is sleeved in the groove, and the limit rod is fixedly connected to the fixed seat.

[0007] Preferably, a rotating shaft is fixedly connected to the eccentric wheel and hinged to a fixed base. A first slot is provided at the top of the rotating shaft, and a first insert block is inserted into the first slot. A connecting block is fixedly connected to the top of the first insert block, and a first guide groove is provided at the top of the connecting block. A rotating block is hinged to the connecting block and is hinged to a square tube. An installation groove is provided at the bottom of the rotating block, and a second guide groove is provided in the installation groove at a position corresponding to the first guide groove. A guide block is slidably connected in the second guide groove, and a second spring is sleeved in the first guide groove. One end of the second spring is located in the first guide groove, and the other end is located on the guide block.

[0008] Preferably, the fixed base has a first through hole at the position corresponding to the connecting block, and the connecting block is sleeved in the first through hole; the square tube has an installation hole at the position corresponding to the rotating block, and the rotating block is sleeved in the installation hole.

[0009] Preferably, a first retaining ring is sleeved on the connecting block and the first retaining ring is sleeved in the mounting groove, and a second retaining ring is sleeved on the rotating block and the second retaining ring is disposed at the bottom end of the mounting hole.

[0010] Preferably, the top of the rotating block is provided with a second slot, the second slot is provided with a second through hole, and the second through hole is connected to the second guide groove. A plug is sleeved in the second through hole and the plug is fixedly connected to the guide block.

[0011] This utility model provides a steel grating with an anti-theft structure, which has the following advantages: The steel grating body only needs to be pressed down to automatically pop out and insert into the lock slot of the anti-theft component to complete the locking process. Operation is convenient. During unlocking, the eccentric wheel restricts the slider to reset, ensuring the lock block remains stably unlocked without continuous force. This solves the problem of inconvenient disassembly and assembly in existing technologies. Furthermore, unlocking requires a special tool to push into the guide block and rotate the rotating block; simply rotating the rotating block cannot drive the eccentric wheel to unlock, avoiding illegal operation with ordinary tools. This significantly improves the anti-theft effect, balances construction and maintenance efficiency with anti-theft reliability, and effectively compensates for the shortcomings of existing technologies. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall front view sectional structure of this utility model; Figure 3 This is a three-dimensional cross-sectional view of the anti-theft component of this utility model; Figure 4 for Figure 3 Enlarged view of the structure of region A in the middle; Figure 5 This is a three-dimensional structural diagram of the eccentric wheel of this utility model; Figure 6 This is a three-dimensional cross-sectional view of the rotating block of this utility model; Figure 7 This is a three-dimensional structural diagram of the head of the unlocking tool of this utility model.

[0014] In the diagram: 1. Steel grating body; 11. Square tube; 12. Mounting hole; 13. Mounting base; 14. Lock groove; 2. Anti-theft component; 21. Fixed base; 22. First through hole; 23. Slider; 24. First through groove; 25. Stop block; 26. First spring; 27. Second through groove; 28. Lock block; 29. ​​Rotating shaft; 210. First slot; 211. Eccentric wheel; 212. Slide groove; 213. Limiting rod; 214. First insert block; 215. Connecting block; 216. First guide groove; 217. First snap ring; 218. Rotating block; 219. Second snap ring; 220. Second slot; 221. Second through hole; 222. Second guide groove; 223. Guide block; 224. Block; 225. Second spring; 226. Mounting groove; 3. Second insert block; 4. Top rod. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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 protection scope of this utility model.

[0016] Please see the appendix Figure 1 -Appendix Figure 7This utility model provides an embodiment of a steel grating with an anti-theft structure, comprising a steel grating body 1, a mounting base 13 sleeved on the steel grating body 1, square tubes 11 fixedly connected to the outer walls of both sides of the steel grating body 1, and anti-theft components 2 installed at both ends of the square tubes 11. Each anti-theft component 2 includes a fixing base 21, which is fixedly connected inside the square tube 11. A slider 23 is slidably connected inside the fixing base 21, and a locking block 28 is fixedly connected to the slider 23. A corresponding locking block 28 is provided on the mounting base 13. A locking groove 14 is provided, and a locking block 28 is inserted into the locking groove 14. A second through groove 27 is provided on the slider 23, and an eccentric wheel 211 is provided in the second through groove 27. The eccentric wheel 211 is hinged to the fixed base 21. A first through groove 24 is provided on one side of the second through groove 27, and the first through groove 24 is provided on the fixed base 21. A stop block 25 is sleeved in the first through groove 24, and the stop block 25 is fixedly connected to the fixed base 21. A first spring 26 is fixedly connected to the stop block 25, and the other end of the first spring 26 is provided in the first through groove 27. Inside the 4th section, the mounting base 13 supports the steel grating body 1, the square tube 11 is used to install the anti-theft component 2 on the steel grating body 1, the anti-theft component 2 is used to lock the steel grating body 1 onto the mounting base 13, the fixing base 21 is used to install the slider 23, the slider 23 is used to install the locking block 28, the locking block 28 cooperates with the locking groove 14 to lock the steel grating body 1 onto the mounting base 13, the second through groove 27 is used to accommodate the eccentric wheel 211, the eccentric wheel 211 can rotate to push the slider 23, so that the locking block 28 disengages from the locking groove 14. The eccentric wheel 211 can also prevent the slider 23 from resetting. The first through groove 24 is used to accommodate the stop block 25 and the first spring 26. The stop block 25 is used to limit the first spring 26, and the first spring 26 is used to provide the reset force for the slider 23. The eccentric wheel 211 is provided with a sliding groove 212. A limit rod 213 is sleeved in the sliding groove 212, and the limit rod 213 is fixedly connected to the fixed base 21. The sliding groove 212 is used to accommodate the limit rod 213, and the limit rod 213 is used to limit the rotation angle of the eccentric wheel 211.An eccentric wheel 211 is fixedly connected to a rotating shaft 29, which is hinged to a fixed base 21. A first slot 210 is formed at the top of the rotating shaft 29, into which a first insert block 214 is inserted. A connecting block 215 is fixedly connected to the top of the first insert block 214. A first guide groove 216 is formed at the top of the connecting block 215. A rotating block 218 is hinged to the connecting block 215 and is hinged to the square tube 11. A mounting groove 226 is formed at the bottom of the rotating block 218. A second guide groove 222 is formed in the mounting groove 226 at a position corresponding to the first guide groove 216. A guide block 223 is slidably connected in the second guide groove 222. A second guide block 223 is sleeved in the first guide groove 216. A spring 225 is provided, with one end of the second spring 225 disposed in the first guide groove 216 and the other end disposed on the guide block 223. A rotating shaft 29 is used to hinge the eccentric wheel 211 and the fixed seat 21. The rotating shaft 29 accommodates the first insert 214 through the first slot 210. The first insert 214 is hinged to the rotating block 218 through the connecting block 215. A mounting groove 226 is used to accommodate the connecting block 215. The first guide groove 216 is used to accommodate the second spring 225 and the guide block 223. The second guide groove 222 is also used to accommodate the second spring 225 and the guide block 223. The second spring 225 provides a restoring force to the guide block 223. The guide block 223 can transmit the power of the rotating block 218. A connecting block 215 is provided so that the connecting block 215 and the rotating block 218 rotate synchronously. A first through hole 22 is provided on the fixed base 21 at the position corresponding to the connecting block 215, and the connecting block 215 is sleeved in the first through hole 22. A mounting hole 12 is provided on the square tube 11 at the position corresponding to the rotating block 218, and the rotating block 218 is sleeved in the mounting hole 12. The first through hole 22 is used to accommodate the connecting block 215, and the mounting hole 12 is used to accommodate the rotating block 218. A first retaining spring 217 is sleeved on the connecting block 215 and is sleeved in the mounting groove 226. A second retaining spring 219 is sleeved on the rotating block 218 and is located at the bottom end of the mounting hole 12. 217 is used to confine the connecting block 215 within the mounting groove 226, realizing the hinge between the connecting block 215 and the rotating block 218. The second retaining ring 219 is used to confine the rotating block 218 within the mounting hole 12. A second slot 220 is provided at the top of the rotating block 218, and a second through hole 221 is provided within the second slot 220. The second through hole 221 is conductively connected to the second guide groove 222. A plug 224 is sleeved within the second through hole 221 and is fixedly connected to the guide block 223. The second slot 220 is used to insert the head of the unlocking tool, the second through hole 221 is used to connect the second slot 220 and the second guide groove 222, and the plug 224 is used to block the second through hole 221.

[0017] Working principle: When using this utility model, the mounting base 13 is pre-embedded in the side wall of the drainage ditch, and then the steel grating body 1 is installed on the mounting base 13. The anti-theft component 2 on the square tube 11 is used for locking. Specifically, the steel grating body 1 is pressed down, causing the mounting base 13 to push the locking block 28. The locking block 28 drives the slider 23 to slide in the fixed base 21. In conjunction with the stop block 25, the first spring 26 in the first through groove 24 is compressed. When the locking block 28 reaches the lock groove 14, under the action of the first spring 26, the slider 23 drives the locking block 28 to reset and pop out, so that the locking block 28 is inserted into the lock groove 14, thereby achieving the locking of the steel grating body 1 and the mounting base 13. If it is necessary to unlock the anti-theft component 2, a special unlocking tool is required. The head of the unlocking tool adopts the same design as the second insertion tool. The second insert 3, which mates with the slot 220, and the push rod 4 are combined. The push rod 4 pushes down the blocking block 224 and inserts into the second through hole 221. The guide block 223 on the blocking block 224 moves down into the second guide groove 222, compressing the second spring 225. If the first guide groove 216 and the second guide groove 222 are not aligned, the guide block 223 will not be blocked by the connecting block 215. At this time, the second insert 3 is partially inserted into the second slot 220. Pressure can be applied downwards, and the unlocking tool can be slowly rotated, causing the second insert 3 to drive the rotating block 218 to rotate via the second slot 220, gradually aligning the second guide groove 222 with the first guide groove 216. At the instant the second guide groove 222 is completely aligned with the first guide groove 216, the push rod 4 will... The blocking block 224 pushes the guide block 223 into the first guide groove 216, and the second insert block 3 is fully inserted into the second slot 220. At this time, part of the guide block 223 is in the first guide groove 216 and the other part is in the second guide groove 222. Therefore, when the rotating block 218 rotates, it will also drive the connecting block 215 through the guide block 223. The connecting block 215 drives the rotating shaft 29 through the first insert block 214. The eccentric wheel 211 on the rotating shaft 29 rotates accordingly. The eccentric wheel 211 pushes the slider 23. The slider 23 compresses the first spring 26 until the end of the slide groove 212 is limited by the limiting rod 213. At this time, the locking block 28 is completely disengaged from the locking groove 14, and the eccentric wheel 211 prevents the slider 23 from resetting. After unlocking all the anti-theft components 2, they can be removed. The steel grating body 1, although the existing tools can turn the rotating block 218, cannot drive the connecting block 215 to rotate, so the anti-theft component 2 cannot be unlocked; wherein, the slot and guide groove can be slots with a polygonal cross-section, the insert block and guide block 223 can be rods with a polygonal cross-section, such as regular hexagons, etc. The mounting hole 12 is used to accommodate the rotating block 218, the first through hole 22 is used to accommodate the connecting block 215, the second through groove 27 is used to accommodate the eccentric wheel 211, the first slot 210 is used to accommodate the first insert block 214, the first snap ring 217 is used to restrict the connecting block 215 within the mounting groove 226 to realize the hinge between the connecting block 215 and the rotating block 218, and the second snap ring 219 is used to restrict the rotating block 218 within the mounting hole 12.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A steel grating with an anti-theft structure, comprising a steel grating body (1), characterized in that: The steel grating body (1) is fitted with a mounting base (13). Square tubes (11) are fixedly connected to the outer walls on both sides of the steel grating body (1). Anti-theft components (2) are installed at both ends of the square tubes (11). The anti-theft components (2) include a fixing base (21), which is fixedly connected to the square tube (11). A slider (23) is slidably connected inside the fixing base (21). A lock block (28) is fixedly connected to the slider (23). A lock groove (14) is opened on the mounting base (13) at the position corresponding to the lock block (28), and the lock block (28) is inserted into the lock groove (14). The slider (23) has a second through groove (27), an eccentric wheel (211) is provided in the second through groove (27), and the eccentric wheel (211) is hinged to the fixed seat (21). A first through groove (24) is provided on one side of the second through groove (27), and the first through groove (24) is provided on the fixed seat (21). A stop block (25) is sleeved in the first through groove (24), and the stop block (25) is fixedly connected to the fixed seat (21). A first spring (26) is fixedly connected to the stop block (25), and the other end of the first spring (26) is provided in the first through groove (24).

2. The steel grating with an anti-theft structure according to claim 1, characterized in that: The eccentric wheel (211) has a groove (212) and a limit rod (213) is sleeved inside the groove (212), and the limit rod (213) is fixedly connected to the fixed seat (21).

3. A steel grating with an anti-theft structure according to claim 2, characterized in that: A rotating shaft (29) is fixedly connected to the eccentric wheel (211), and the rotating shaft (29) is hinged to the fixed base (21). A first slot (210) is provided at the top of the rotating shaft (29), and a first insert (214) is inserted into the first slot (210). A connecting block (215) is fixedly connected to the top of the first insert (214), and a first guide groove (216) is provided at the top of the connecting block (215). A rotating block (218) is hinged to the connecting block (215), and the rotating block (218)... Hinged to the square tube (11), the bottom end of the rotating block (218) is provided with an installation groove (226). A second guide groove (222) is provided in the installation groove (226) at the position corresponding to the first guide groove (216). A guide block (223) is slidably connected in the second guide groove (222). A second spring (225) is sleeved in the first guide groove (216), and one end of the second spring (225) is set in the first guide groove (216), and the other end is set on the guide block (223).

4. A steel grating with an anti-theft structure according to claim 3, characterized in that: The fixed base (21) has a first through hole (22) at the position corresponding to the connecting block (215), and the connecting block (215) is sleeved in the first through hole (22). The square tube (11) has an installation hole (12) at the position corresponding to the rotating block (218), and the rotating block (218) is sleeved in the installation hole (12).

5. A steel grating with an anti-theft structure according to claim 4, characterized in that: The connecting block (215) is fitted with a first retaining ring (217), and the first retaining ring (217) is fitted into the mounting groove (226). The rotating block (218) is fitted with a second retaining ring (219), and the second retaining ring (219) is located at the bottom of the mounting hole (12).

6. A steel grating with an anti-theft structure according to claim 5, characterized in that: The rotating block (218) has a second slot (220) at its top end. The second slot (220) has a second through hole (221) inside it. The second through hole (221) is connected to the second guide groove (222). A plug (224) is fitted inside the second through hole (221) and is fixedly connected to the guide block (223).

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