Novel anti-theft well lid suitable for municipal drainage engineering
The anti-theft manhole cover design addresses theft vulnerabilities by using an anti-destruction device with a locking mechanism and fixing device to secure the cover, ensuring it remains intact even when the joint is damaged, while minimizing corrosion from sewage exposure.
Patent Information
- Application Number
- CN202420674856.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-03
AI Technical Summary
Existing manhole covers with exposed joints are vulnerable to damage and theft due to the ease with which thieves can lift them by destroying the joint connection, rendering anti-theft devices ineffective.
A new anti-theft manhole cover design featuring an anti-destruction device with a fixed block, rotating shaft, collar, tension spring, and sliding block mechanism that locks the cover when the joint is damaged, combined with a fixing device that uses a fixing cylinder and sliding shaft to secure both sides, preventing theft and reducing corrosion from sewage exposure.
The design effectively prevents theft by locking the manhole cover when the joint is compromised and reduces corrosion of internal components by blocking sewage entry, thereby enhancing security and durability.
Smart Images
Figure CN222140121U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of manhole covers, in particular to a new anti-theft manhole cover suitable for municipal drainage projects. Background Art
[0002] Manhole covers are used to cover deep wells on roads or in homes to prevent people or objects from falling. They can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. according to the material. They are generally round. They can be used in green belts, sidewalks, motorway lanes, docks, alleys, etc.
[0003] In the prior art, for some manhole covers with exposed joints, compared with the manhole cover base and the manhole cover plate, their joints are easily damaged by violence. After the thief destroys one side of the joint and lifts up the manhole cover from the joint, the anti-theft device fixed on one side of some manhole covers will be invalidated, thereby causing the manhole cover to be stolen. Utility Model Content
[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: a new anti-theft manhole cover suitable for municipal drainage projects, comprising: a manhole cover seat; a manhole cover plate; an anti-destruction device, the anti-destruction device is used to fix the manhole cover connection after it is destroyed, and the top of the anti-destruction device is fixedly connected to the bottom of the manhole cover plate; an open hollow cylinder, the open hollow cylinder is used to accommodate the internal components of the anti-destruction device, the end of the open hollow cylinder close to the opening is fixedly connected to the bottom of the manhole cover seat, the open hollow cylinder, the open hollow cylinder is used to accommodate the internal components of the anti-destruction device, and the end of the open hollow cylinder close to the opening is fixedly connected to the bottom of the manhole cover seat; wherein the anti-destruction device comprises a fixed block, a connecting block is arranged above the fixed block, the inner wall of the connecting block is rotatably connected to a rotating shaft, the two ends of the rotating shaft are rotatably connected to a collar, the bottom of the collar is fixedly connected to a tension spring, the outer wall of the fixed block is slidably connected to a sliding block, the anti-destruction device cooperates with the fixing device, so that both sides of the manhole cover are fixed, so that the manhole cover is difficult to be stolen.
[0005] Preferably, a blocking groove is provided in the wall of the manhole cover seat, an entry groove is provided in the wall of the manhole cover plate, the bottom of the fixed block is fixedly connected to the bottom of the manhole cover plate, the outer wall of the manhole cover plate is fixedly connected to the outer wall of the connecting block, the outer wall of the rotating shaft is rotatably connected to the inner wall of the manhole cover seat, the end of the tension spring away from the ring is fixedly connected to the bottom of the inner wall of the open hollow cylinder, the outer wall of the ring is slidably connected to the inner wall of the manhole cover seat, and the outer wall of the sliding block is slidably connected to the inner wall of the manhole cover seat, and when the connection between the manhole cover plate and the manhole cover seat is damaged, the ring in the anti-destruction device will push the sliding block to jam the fixed block, thereby fixing the manhole cover.
[0006] Preferably, the fixing device includes a fixing cylinder, the inner wall of the fixing cylinder is slidably connected with a fixing sleeve, the end of the fixing sleeve close to the blocking groove is fixedly connected with a force storage spring, the inner wall of the fixing sleeve is fixedly connected with a sliding shaft, the end of the sliding shaft away from the blocking groove is fixedly connected to a limiting block, the top of the fixing cylinder is fixedly connected to the bottom of the manhole cover, the inner wall of the fixing cylinder is slidably connected to the outer wall of the sliding shaft, the end of the force storage spring away from the fixing sleeve is fixedly connected to the inner wall of the fixing cylinder, the fixing device fixes the manhole cover and makes it difficult to be stolen. At the same time, the fixing sleeve in the fixing device blocks part of the sewage from entering the fixing device, thereby slowing down the corrosion of the force storage spring by the sewage.
[0007] The beneficial effects of the utility model are as follows:
[0008] 1. The utility model is provided with an anti-damage device. When the connection between the manhole cover plate and the manhole cover seat is damaged, the collar in the anti-damage device will push the sliding block to lock the fixed block, thereby fixing the manhole cover. The fixing device is used to fix both sides of the manhole cover, making it difficult to steal the manhole cover.
[0009] 2. The utility model fixes the manhole cover by providing a fixing device, making it difficult to be stolen. At the same time, the setting of the fixing sleeve inside the fixing cylinder blocks part of the sewage from entering the fixing device, and reduces the corrosion of the storage spring by sewage, thereby slowing down the time for the fixing device to fail due to corrosion. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is the front view of the utility model;
[0011] Figure 2 It is a bottom view of the utility model;
[0012] Figure 3 It is a cross-sectional view of the utility model;
[0013] Figure 4 It is a schematic diagram of the structure of the utility model at A;
[0014] Figure 5 It is a structural schematic diagram of B of the utility model.
[0015] In the figure: 1. manhole cover seat; 2. manhole cover plate; 3. open hollow cylinder; 4. anti-destruction device; 5. fixing device; 6. blocking groove; 7. entry groove; 41. fixed block; 42. sliding block; 43. collar; 44. tension spring; 45. rotating shaft; 46. connecting block; 51. fixed cylinder; 52. fixed sleeve; 53. sliding shaft; 54. limit block; 55. storage spring. DETAILED DESCRIPTION
[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.
[0017] Example: See Figure 1 - Figure 4 The utility model provides a technical solution: a new type of anti-theft manhole cover suitable for municipal drainage projects, comprising: a manhole cover seat 1; a manhole cover plate 2; an anti-destruction device 4, the anti-destruction device 4 is used to fix the manhole cover connection after it is destroyed, and the top of the anti-destruction device 4 is fixedly connected to the bottom of the manhole cover plate 2; an open hollow cylinder 3, the open hollow cylinder 3 is used to accommodate the internal components of the anti-destruction device 4, and the end of the open hollow cylinder 3 close to the opening is fixedly connected to the bottom of the manhole cover seat 1, the open hollow cylinder 3, the open hollow cylinder 3 is used to accommodate the internal components of the anti-destruction device 4, and the end of the open hollow cylinder 3 close to the opening is fixedly connected to the bottom of the manhole cover seat 1; wherein the anti-destruction device 4 comprises a fixed block 41, a connecting block 46 is arranged above the fixed block 41, the inner wall of the connecting block 46 is rotatably connected with a rotating shaft 45, and the two ends of the rotating shaft 45 are rotatably connected with a collar 43, and the bottom of the collar 43 is fixedly connected with a tension spring 44, and the outer wall of the fixed block 41 The sliding connection is provided with a sliding block 42. In order to steal the anti-theft manhole cover, some thieves will choose to smash the connecting block 46 and the rotating shaft 45, and lift the manhole cover 2 from this side after smashing them. Since the end of the rotating shaft 45 is provided with a collar 43, when the smashed rotating shaft 45 is moved by the thief, the collar 43 will fall off the rotating shaft 45. Since the tension spring 44 is always in a state of accumulation of force, the collar 43 will be quickly pulled back by the tension spring 44 while detaching from the rotating shaft 45. When the collar 43 slides in the manhole cover seat 1, it will hit the inclined surface of the sliding block 42. At the same time, the process of the thief lifting the manhole cover 2 will shorten the collision time between the collar 43 and the sliding block 42. Under the arc surface setting of the collar 43 and the inclined surface setting of the sliding block 42, the sliding block 42 will be quickly pushed into the groove of the fixed block 41, and the collar 43 will resist the position of the sliding block 42, so that the manhole cover seat 1 locks the position of the fixed block 41 through the sliding block 42.
[0018] A blocking groove 6 is provided in the wall of the manhole cover seat 1, an entry groove 7 is provided in the wall of the manhole cover plate 2, the bottom of the fixing block 41 is fixedly connected to the bottom of the manhole cover plate 2, the outer wall of the manhole cover plate 2 is fixedly connected to the outer wall of the connecting block 46, the outer wall of the rotating shaft 45 is rotatably connected to the inner wall of the manhole cover seat 1, the end of the tension spring 44 away from the ring 43 is fixedly connected to the bottom of the inner wall of the open hollow cylinder 3, the outer wall of the ring 43 is slidably connected to the inner wall of the manhole cover seat 1, and the outer wall of the sliding block 42 is slidably connected to the inner wall of the manhole cover seat 1. Since the fixing block 41 is fixed on the manhole cover plate 2, the manhole cover seat 1 and the manhole cover plate 2 are connected at this time, and cooperate with the fixing device 5 to fix the positions on both sides of the manhole cover plate 2, thereby preventing the manhole cover plate 2 from being stolen.
[0019] The fixing device 5 includes a fixing cylinder 51, the inner wall of the fixing cylinder 51 is slidably connected with a fixing sleeve 52, one end of the fixing sleeve 52 close to the blocking groove 6 is fixedly connected with a force storage spring 55, the inner wall of the fixing sleeve 52 is fixedly connected with a sliding shaft 53, and the end of the sliding shaft 53 away from the blocking groove 6 is fixedly connected to a limiting block 54, the top of the fixing cylinder 51 is fixedly connected to the bottom of the manhole cover plate 2, the inner wall of the fixing cylinder 51 is slidably connected to the outer wall of the sliding shaft 53, and the end of the force storage spring 55 away from the fixing sleeve 52 is fixedly connected to the inner wall of the fixing cylinder 51. The fixing device 5 can complete the unilateral fixation of the manhole cover, and cooperate with the position fixation of the manhole cover connection to achieve the anti-theft effect. At the same time, when the pipeline in the municipal drainage is blocked, the maintenance personnel will open the manhole cover for inspection. During the opening and closing process, the movable fixing sleeve 52 pushes out the sewage accumulated in the fixing cylinder 51, thereby slowing down the rust time of the force storage spring 55 close to the fixing sleeve 52, thereby slowing down the rust of the force storage spring 55 by the sewage.
[0020] Working principle:
[0021] When the manhole cover is in normal use, the tension spring 44 of the anti-destruction device 4 will always be in a state of tension and force storage. When the thief cannot destroy the fixing device 5 to unlock it, he will choose to destroy the connection. Since the manhole cover 2 rotates on the manhole cover seat 1 through the rotating shaft 45 on the connecting block 46, and the connection is relatively fragile compared to the manhole cover seat 1 and the manhole cover 2, the thief will first smash the connecting block 46 and the rotating shaft 45, and then lift the manhole cover 2 from this side. Since a ring 43 is provided at the end of the rotating shaft 45, when the smashed rotating shaft 45 is moved by the thief, the ring 43 will fall off the rotating shaft 45. Since the tension spring 44 is always in a state of force storage, the ring 43 will be stretched and the spring will be pulled away from the rotating shaft 45. The spring 44 is quickly pulled back, and the ring 43 will hit the inclined surface of the sliding block 42 when sliding in the manhole cover seat 1. At the same time, the process of the thief lifting the manhole cover 2 will shorten the collision time between the ring 43 and the sliding block 42. Under the arc setting of the ring 43 and the inclined surface setting of the sliding block 42, the sliding block 42 will be quickly pushed into the groove of the fixed block 41. At the same time, the ring 43 that falls to the position of the open hollow cylinder 3 will resist the position of the sliding block 42, so that the manhole cover seat 1 locks the position of the fixed block 41 through the sliding block 42. Since the fixed block 41 is fixed on the manhole cover 2, the manhole cover seat 1 is connected to the manhole cover 2 at this time, and cooperates with the fixing device 5 to fix the positions on both sides of the manhole cover 2, thereby preventing the manhole cover 2 from being stolen.
[0022] The fixing device 5 is provided to cooperate with the anti-destruction device 4 to provide anti-theft protection for the manhole cover 2. When in use, the user needs a long strip-shaped key with a flat strip at one end, and a groove is provided at the position of the flat strip. The key extends into the manhole cover through the entry slot 7 and the groove is stuck on the sliding shaft 53. At this time, the key is turned so that the two ends of the flat strip push the limit block 54 and the outer wall of the fixing tube 51 at the same time, and the sliding shaft 53 is pulled out of the fixing tube 51. At the same time, the fixing sleeve 52 drives the storage spring 55 to stretch. The user maintains the rotation posture until the manhole cover 2 is covered, and then stops rotating. Under the rebound action of the storage spring 55, the sliding shaft 53 away from the side of the limit block 54 slides into the blocking groove 6. At this time, the key is pulled out, and the fixing device 5 completes the single-sided locking of the manhole cover. The fixing is carried out in conjunction with the fixing of the manhole cover connection to achieve an anti-theft effect. If the manhole cover connection is damaged, the fixing device 5 can also fix the manhole cover together with the triggered anti-destruction device 4. When too much rainwater accumulates in the pipe under the manhole cover, the water level in the well will rise. During the rising process, sewage will enter the fixing device 5, and the fixing sleeve 52 in the fixing device 5 will block the sewage entering the fixing device 5. When the pipe in the municipal drainage is blocked, the maintenance personnel will open the manhole cover for inspection. During the opening and closing process, the movable fixing sleeve 52 pushes out the sewage accumulated in the fixing cylinder 51, thereby slowing down the rusting time of the force storage spring 55 close to the fixing sleeve 52, thereby slowing down the rusting of the force storage spring 55 by the sewage.
[0023] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.
Claims
1. A new type of anti-theft manhole cover suitable for municipal drainage projects, include: Manhole cover seat (1); Manhole cover (2); An anti-destruction device (4), the anti-destruction device (4) being used to fix the connection of the manhole cover after it is damaged, the top of the anti-destruction device (4) being fixedly connected to the bottom of the manhole cover plate (2); An open hollow cylinder (3), the open hollow cylinder (3) being used to accommodate internal components of the anti-destruction device (4), and the end of the open hollow cylinder (3) close to the opening is fixedly connected to the bottom of the manhole cover seat (1); A fixing device (5), the fixing device (5) being used to fix the manhole cover, the top of the fixing device (5) being fixedly connected to a side of the bottom of the manhole cover plate (2) away from the anti-destruction device (4); It is characterized in that, The anti-destruction device (4) comprises a fixed block (41), a connecting block (46) is arranged above the fixed block (41), the inner wall of the connecting block (46) is rotatably connected to a rotating shaft (45), both ends of the rotating shaft (45) are rotatably connected to collars (43), the bottom of the collar (43) is fixedly connected to a tension spring (44), and the outer wall of the fixed block (41) is slidably connected to a sliding block (42).
2. A new anti-theft manhole cover suitable for municipal drainage projects according to claim 1, Features: A blocking groove (6) is provided in the wall of the manhole cover seat (1), and an entry groove (7) is provided in the wall of the manhole cover plate (2).
3. A new anti-theft manhole cover suitable for municipal drainage engineering according to claim 1, Features: The bottom of the fixed block (41) is fixedly connected to the bottom of the manhole cover plate (2), the outer wall of the manhole cover plate (2) is fixedly connected to the outer wall of the connecting block (46), the outer wall of the rotating shaft (45) is rotatably connected to the inner wall of the manhole cover seat (1), the end of the tension spring (44) away from the collar (43) is fixedly connected to the bottom of the inner wall of the open hollow cylinder (3), the outer wall of the collar (43) is slidably connected to the inner wall of the manhole cover seat (1), and the outer wall of the sliding block (42) is slidably connected to the inner wall of the manhole cover seat (1).
4. A new anti-theft manhole cover suitable for municipal drainage engineering according to claim 2, Features: The fixing device (5) comprises a fixing cylinder (51), the inner wall of the fixing cylinder (51) being slidably connected to a fixing sleeve (52), one end of the fixing sleeve (52) close to the blocking groove (6) being fixedly connected to a force storage spring (55), the inner wall of the fixing sleeve (52) being fixedly connected to a sliding shaft (53), and one end of the sliding shaft (53) away from the blocking groove (6) being fixedly connected to a limiting block (54).
5. A new anti-theft manhole cover suitable for municipal drainage engineering according to claim 4, Features: The top of the fixed cylinder (51) is fixedly connected to the bottom of the manhole cover (2), the inner wall of the fixed cylinder (51) is slidably connected to the outer wall of the sliding shaft (53), and one end of the force storage spring (55) away from the fixed sleeve (52) is fixedly connected to the inner wall of the fixed cylinder (51).