Safety protection device

By installing a protective plate, a connecting structure, and a locking mechanism on the manhole door, the problem of the lack of stable protection in the manhole door is solved, achieving higher safety and convenience.

CN223896013UActive Publication Date: 2026-02-10XUZHOU HUAXIN POWER GENERATION CO LTD
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Patent Information

Application Number
CN202520146791.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-02-10
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

The manhole doors in existing boiler equipment lack stable and reliable safety protection devices, which poses a safety hazard when personnel enter the furnace.

Method used

A safety protection device was designed, including a protective plate, a connecting structure, and a locking structure. The connecting structure is connected to the hinge of the manhole door, and the locking structure is used to fix it to the locking part, ensuring that the protective plate is stably connected during the opening process and preventing accidental opening.

Benefits of technology

This improves the safety and ease of operation of the manhole door, preventing personnel from opening the protective plate and entering the furnace without safety instructions, thus reducing safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a safety protection device and relates to the technical field of boiler equipment, the safety protection device is applied to a manhole door, the manhole door comprises a hinge part and a locking part, the hinge part is arranged at the edge of one end of the manhole door, and the locking part is arranged at the end, away from the hinge part, of the manhole door. The safety protection device comprises a protection plate, a connecting structure and a lock catch structure, and the connecting structure is arranged on one side of the protection plate and connected with the hinge part; the lock catch structure is arranged at the end, away from the connecting structure, of the protection plate and connected with the locking part. According to the manhole door, the connecting structure is connected with the hinge part of the manhole door, stable connection of the protection plate and the hinge part in the opening process of the manhole door is ensured, the protection purpose is achieved, the lock catch structure is connected with the locking part of the manhole door, and the situation that personnel open the protection plate at will to enter a hearth under the condition that safety disclosure is not conducted is prevented; and therefore, the protection safety of the protection plate is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler equipment technical field, especially a safety device. BACKGROUND

[0002] In the industrial production process, the furnace manhole door is an important part of the boiler equipment, mainly used for facilitating personnel to enter the furnace for installation, masonry, maintenance, troubleshooting and cleaning the furnace and other work. The manhole door is also called an inspection door, which provides a passageway for personnel to enter and exit for maintenance.

[0003] In order to further reduce the furnace temperature, shorten the cooling time and improve the efficiency of boiler maintenance, ventilation cooling is required through the manhole door, and the manhole door is in an open state at this time. Since no stable and reliable protection device is provided, personnel are prone to enter the furnace interior, causing personal injury and safety hazards. In related technology, a safety protection device such as a wire mesh is usually used for protection. The wire mesh is fixed by simple binding, the protection device is not reliable, there is a certain safety hazard, and thus the purpose of safety protection cannot be achieved, which does not meet the requirements of safe and civilized production. SUMMARY

[0004] The main purpose of the utility model is to provide a safety device, which aims to solve the technical problem of safety hazards in the safety device in related technology.

[0005] To achieve the above-mentioned purpose, the safety device provided by the utility model is applied to a manhole door, the manhole door includes a hinge part and a locking part, the hinge part is arranged at one end edge of the manhole door, and the locking part is arranged at one end of the manhole door away from the hinge part. In an embodiment, the safety device includes:

[0006] a protection plate;

[0007] a connecting structure arranged on one side of the protection plate and connected with the hinge part;

[0008] a lock catch structure arranged at one end of the protection plate away from the connecting structure and connected with the locking part.

[0009] In an embodiment, the connecting structure includes a connecting assembly and a sliding assembly connected with each other, the connecting assembly is connected with the hinge part, and the sliding assembly is arranged on one side of the protection plate.

[0010] In an embodiment, the connecting assembly includes a first connecting rod and a first sleeve, the sliding assembly includes a first sliding block slidingly arranged on the protection plate, both ends of the first connecting rod are connected with the first sleeve and the first sliding block respectively, and the first sleeve is connected with the hinge part.

[0011] In an embodiment, the connecting assembly comprises a second sleeve, a driving rod and a second connecting rod, the sliding assembly comprises a second sliding block slidingly arranged on the protective plate, the driving rod is rotationally connected with the second connecting rod, one end of the driving rod is connected with the second sleeve, and the second connecting rod is movably connected with the second sliding block.

[0012] In an embodiment, the connecting structure comprises two connecting assemblies and two sliding assemblies, each connecting assembly is connected with a sliding assembly, one side of the protective plate is provided with a sliding rail extending along the vertical direction of the protective plate, and the two sliding assemblies are movably connected with the sliding rail.

[0013] In an embodiment, the protective plate is further provided with at least one through hole, and the safety protection device further comprises a fastener, the fastener is fixed with the manhole door through the through hole.

[0014] In an embodiment, the protective plate is provided with a first opening, and the first opening is provided with a protective net.

[0015] In an embodiment, the protective plate is provided with a second opening and a third opening arranged at intervals, the protective net comprises a first protective net and a second protective net arranged at intervals, the second opening is provided with the first protective net, and the third opening is provided with the second protective net.

[0016] In an embodiment, the protective plate is further provided with an identification part, and the identification part is located between the first protective net and the second protective net.

[0017] The technical scheme of the utility model discloses a connecting structure and a lock catch structure are arranged on the protective plate, compared with the related art in which a wire mesh and a bolt and nut are used to fix the manhole door for protection, the connecting structure is connected with the hinge part of the manhole door, the stable connection between the protective plate and the hinge part during the opening process of the manhole door is ensured, the purpose of protection is achieved, the lock catch structure is connected with the locking part of the manhole door, the accidental opening of the protective plate due to accidental impact or vibration during use is prevented, the protective plate is not opened randomly to enter the hearth under the condition that the safety disclosure is not carried out, the personnel are prevented from being hurt, and the protection safety of the protective plate is ensured. The above-mentioned arrangement improves the safety and the operation convenience of the safety protection device. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0019] Figure 1 The structural schematic diagram of an embodiment of the safety protection device provided by the present application is shown in the figure.

[0020] Figure 2 The structural schematic diagram of an embodiment of the connecting structure provided by the present application is shown in the figure.

[0021] Figure 3 The structural schematic diagram of another embodiment of the connecting structure provided by the present application is shown in the figure.

[0022] Explanation of reference numerals:

[0023] 1000, safety protection device; 1, protection plate; 11, second opening; 12, third opening; 13, protection net; 131, first protection net; 132, second protection net; 14, identification part; 2, connecting structure; 21, connecting assembly; 211, first connecting rod; 212, first sleeve; 213, second sleeve; 214, driving rod; 215, second connecting rod; 22, sliding assembly; 221, first sliding block; 222, second sliding block; 3, lock catch structure.

[0024] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0027] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes include "A and / or B" as an example, including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0028] The utility model provides a kind of safety device 1000.

[0029] Please refer to Figures 1 to 2 In an embodiment of the present application, the safety device is applied to a manhole door. The manhole door includes a hinge part and a locking part. The hinge part is arranged at one end edge of the manhole door, and the locking part is arranged at the other end of the manhole door away from the hinge part. The safety device includes a protective plate 1, a connecting structure 2 and a lock catch structure 3. The connecting structure 2 is arranged at one side of the protective plate 1 and connected with the hinge part. The lock catch structure 3 is arranged at the other end of the protective plate 1 away from the connecting structure 2 and connected with the locking part.

[0030] In the embodiment, the safety protection device can be applied to not only the manhole door but also the industrial equipment maintenance, tunnel construction passage and other scenes. It can be understood that the hinge part is the structure between the door leaf and the door frame of the manhole door, and the locking part is the structure on one side of the door frame of the manhole door for locking the door leaf. The protection plate 1 is used for connecting and fixing to the door frame of the manhole door, and simultaneously plays the protection and isolation roles. The material of the protection plate 1 includes but is not limited to carbon steel, alloy steel and the like, and the plate of the steel frame structure form is preferred here. The connecting structure 2 is used for connecting the protection plate 1 with the existing structure (hinge part) of the furnace, and the lock catch structure 3 is used for locking the protection plate 1 after being installed and fixed, so as to avoid the protection plate 1 from being opened accidentally, and to prevent the personnel from entering the manhole door accidentally and being hurt. The lock catch structure 3 includes a third connecting rod, a lock hook and a handle part, the third connecting rod is arranged on the protection plate 1, the lock hook is connected with the locking part, and the handle part is arranged on one side of the third connecting rod. It can be understood that the third connecting rod is arranged on the side of the protection plate 1 away from the connecting structure 2. The rotation of the handle part is transmitted to the lock hook through the third connecting rod, so as to realize the connection or separation of the lock hook and the locking part. The above setting mode improves the stability of the structure and the convenience of the operation. Further, in the installation process, the connecting structure 2 on one side of the protection plate 1 is connected with the hinge part of the door leaf of the manhole door, and then the lock catch structure 3 on the other side of the protection plate 1 is connected with the locking part of the door frame of the manhole door, so that the protection plate 1 is fixed to the outside of the manhole door, to achieve the safety protection purpose.

[0031] The technical scheme of the utility model discloses a connecting structure 2 and a lock catch structure 3 are arranged on the protection plate 1, compared with the related art that the iron wire net and the bolt nut are fixed to the manhole door for protection, the connecting structure 2 is connected with the hinge part of the manhole door, to ensure the stable connection of the protection plate 1 and the hinge part during the opening of the manhole door, to achieve the protection purpose, and the lock catch structure 3 is connected with the locking part of the manhole door, to prevent the personnel from opening the protection plate and entering the furnace without safety briefing, to prevent the personnel from being hurt, and to ensure the safety of the protection plate 1. The above setting improves the safety and the operation convenience of the safety protection device.

[0032] In the embodiment of the utility model, the connecting structure 2 includes a connecting assembly 21 and a sliding assembly 22 connected with each other, the connecting assembly 21 is connected with the hinge part, and the sliding assembly 22 is arranged on one side of the protection plate 1.

[0033] In this embodiment, the connecting component 21 is used to connect with the hinge of the manhole door, and the sliding component 22 is used to adjust the position of the protective plate 1 and the manhole door. The sliding component 22 and the connecting component 21 can be connected by bolts, snap-fit ​​connections, etc., which are not limited here. In one embodiment, the connecting component 21 can be bolted to fix the protective plate 1 and the hinge of the manhole door. In another embodiment, the connecting component 21 can also be welded to the hinge to form a strong connection. The sliding component 22 is installed on one side of the protective plate 1. In one embodiment, the sliding component 22 includes a slider and a slide rail. The slide rail is set on the protective plate 1, and the position of the protective plate 1 is adjusted by the slider sliding along the slide rail in a straight line. In another embodiment, the sliding component 22 includes a roller guide rail and a roller, and the position of the protective plate 1 is adjusted by the rolling of the roller. The above configuration improves the installation flexibility and enhances the connection stability.

[0034] In one embodiment of the present invention, the connecting component 21 includes a first connecting rod 211 and a first sleeve 212, and the sliding component 22 includes a first slider 221 slidably disposed on the protective plate 1. The two ends of the first connecting rod 211 are respectively connected to the first sleeve 212 and the first slider 221, and the first sleeve 212 is connected to the hinge portion.

[0035] In this embodiment, combined with Figure 2 To improve connection stability, the connecting assembly 21 includes a first connecting rod 211 and a first sleeve 212. The connection method between the first connecting rod 211 and the first sleeve 212 includes, but is not limited to, bolt connection, key connection, welding, etc., and is not limited here. The form of the first connecting rod 211 includes, but is not limited to, rods, hinges, etc., and is not limited here. The connection method between the first connecting rod 211 and the first slider 221 includes, but is not limited to, welding, bolt connection, etc., and is not limited here. The first sleeve 212 is connected to the hinge portion by a sleeve connection. The above configuration enhances adjustment flexibility.

[0036] In one embodiment of the present invention, the connecting component 21 includes a second sleeve 212, a driving rod 214 and a second connecting rod 215, and the sliding component 22 includes a second slider 222 slidably disposed on the protective plate 1. The driving rod 214 is rotatably connected to the second connecting rod 215, the second sleeve 212 is connected to one end of the driving rod 214, and the second connecting rod 215 is movably connected to the second slider 222.

[0037] In this embodiment, combined with Figure 3The connecting component 21 is similar to a crank-slider structure, and the second sleeve 212 is connected to the hinge part by a sleeve connection. It can be understood that the drive rod 213 is connected to the second sleeve 212 via a sliding bearing connection, pin connection, or other means, and the second connecting rod 214 is connected to the second slider 222 via bolt connection, snap-fit ​​connection, or other means. Driven by the drive rod 213, i.e., the drive rod 213 rotates, causing the second connecting rod 214 to rotate. One end of the second connecting rod 214 is connected to the second slider 222, causing the second slider 222 to move up and down along one side of the protective plate 1. This arrangement improves motion accuracy and stability, allowing the connecting structure 2 to better fix the protective plate 1 to the hinge part.

[0038] In one embodiment of the present invention, the connecting structure 2 includes two connecting components 21 and two sliding components 22. Each connecting component 21 is connected to a sliding component 22. A slide rail is provided on one side of the protective plate 1. The slide rail extends along the vertical direction of the protective plate 1. Both sliding components 22 are slidably connected to the slide rail.

[0039] In this embodiment, to enhance structural stability, two connecting components 21 and two sliding components 22 are provided on one side of the protective plate 1 to facilitate simultaneous vertical adjustment and fixation. One connecting component 21 and one sliding component 22 are positioned above the other connecting component 21 and the other sliding component 22. Together, they ensure a better connection between the protective plate 1 and the manhole door hinge, guaranteeing a stable connection between the protective plate 1 and the hinge during furnace ventilation (i.e., when the manhole door is open), thus achieving safety protection. Simultaneously, the presence of the sliding component 22 allows workers to quickly position and fix the protective plate 1.

[0040] In one embodiment of this utility model, the protective plate 1 is further provided with at least one through hole, and the safety protection device also includes a fastener, which passes through the through hole and is fixed to the manhole door.

[0041] In this embodiment, to further secure the protective plate 1 and the manhole door, the protective plate 1 is also provided with at least one through hole. The at least one through hole may be located at the edge of the protective plate 1 or in the middle of the protective plate 1; this is not limited to any particular location. It is understood that the through hole may include, but is not limited to, threaded holes, and the fasteners here may include, but are not limited to, bolts, pins, etc.

[0042] In one embodiment of this utility model, the protective plate 1 has a first opening, and a protective net is provided inside the first opening.

[0043] In this embodiment, to further reduce the furnace temperature and shorten the cooling time, a first opening is provided on the protective plate 1. This first opening connects the inner cavity of the furnace to the outside, allowing the furnace to dissipate heat through the opening while also providing safety protection. To further prevent personnel from accidentally entering the furnace, a protective mesh is installed inside the first opening. This mesh may include, but is not limited to, metal mesh or perforated mesh, etc., and is not limited here. Furthermore, to enhance the safety warning effect, a marking can be sprayed in the center of the protective mesh to remind personnel not to accidentally enter the furnace. The above-described design improves breathability and heat dissipation.

[0044] In one embodiment of the present invention, the protective plate 1 has a second opening 11 and a third opening 12 spaced apart, and the protective net includes a first protective net 131 and a second protective net 132 spaced apart. The first protective net 131 is provided in the second opening 11, and the second protective net 132 is provided in the third opening 12.

[0045] In this embodiment, to enhance structural stability, a second opening 11 and a third opening 12 are provided at intervals on the protective plate 1, and a first protective net 131 and a second protective net 132 are respectively installed in these openings. It is understood that the first protective net 131 and the second protective net 132 can be arranged along the transverse direction of the protective plate 1, i.e., side-by-side at intervals, or along the vertical direction of the protective plate 1, i.e., vertically at intervals. This arrangement can effectively disperse and absorb forces from different directions, thereby improving the overall structural stability. Simultaneously, the spaced protective nets facilitate airflow and improve heat dissipation efficiency.

[0046] In one embodiment of the present invention, the protective plate 1 is further provided with an identification part 14, which is located between the first protective net 131 and the second protective net 132.

[0047] In this embodiment, to serve as a safety reminder, an identification section 14 is provided in the middle of the protective plate 1. The identification section 14 is used to remind workers to avoid accidentally entering the furnace. This arrangement improves recognizability and facilitates worker identification.

[0048] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A safety protection device applied to a manhole door, the manhole door including a hinge portion and a locking portion, the hinge portion being located at one end edge of the manhole door, and the locking portion being located at the end of the manhole door away from the hinge portion, characterized in that, The safety protection device includes: Protective plate (1); A connecting structure (2) is provided on one side of the protective plate (1) and connected to the hinge portion; The locking structure (3) is located at one end of the protective plate (1) away from the connecting structure (2) and is connected to the locking part.

2. The safety protection device as described in claim 1, characterized in that, The connection structure (2) includes a connecting component (21) and a sliding component (22) connected to each other. The connecting component (21) is connected to the hinge part, and the sliding component (22) is located on one side of the protective plate (1).

3. The safety protection device as described in claim 2, characterized in that, The connecting assembly (21) includes a first connecting rod (211) and a first sleeve (212), and the sliding assembly (22) includes a first slider (221) slidably disposed on the protective plate (1). The two ends of the first connecting rod (211) are respectively connected to the first sleeve (212) and the first slider (221), and the first sleeve (212) is connected to the hinge portion.

4. The safety protection device as described in claim 2, characterized in that, The connecting assembly (21) includes a second sleeve (213), a drive rod (214), and a second connecting rod (215). The sliding assembly (22) includes a second slider (222) slidably disposed on the protective plate (1). The drive rod (214) is rotatably connected to the second connecting rod (215). The second sleeve (213) is connected to one end of the drive rod (214). The second connecting rod (215) is movably connected to the second slider (222).

5. The safety protection device as described in any one of claims 2 to 4, characterized in that, The connection structure (2) includes two connection components (21) and two sliding components (22). Each connection component (21) is connected to one sliding component (22). A slide rail is provided on one side of the protective plate (1). The slide rail extends along the vertical direction of the protective plate (1). Both sliding components (22) are slidably connected to the slide rail.

6. The safety protection device as described in any one of claims 1 to 4, characterized in that, The protective plate (1) is also provided with at least one through hole, and the safety protection device also includes a fastener, which passes through the through hole and is fixed to the manhole door.

7. The safety protection device as described in any one of claims 1 to 4, characterized in that, The protective plate (1) has a first opening, and a protective net is provided in the first opening.

8. The safety protection device as described in claim 7, characterized in that, The protective plate (1) has a second opening (11) and a third opening (12) spaced apart. The protective net includes a first protective net (131) and a second protective net (132) spaced apart. The first protective net (131) is provided in the second opening (11), and the second protective net (132) is provided in the third opening (12).

9. The safety protection device as described in claim 8, characterized in that, The protective plate (1) is also provided with an identification part (14), which is located between the first protective net (131) and the second protective net (132).