A slag conveyer manhole door

Abstract

This utility model discloses a manhole door for a slag removal machine, relating to the boiler field. The technical solution of this utility model includes a manhole flange, a manhole cover, and an impact-resistant chain. The manhole flange is closed by the manhole cover; one side of the manhole cover is hinged to one side of the manhole flange, and the other side of the manhole cover is provided with a connecting seat, which is connected to the other side of the manhole flange by a pin; one end of the impact-resistant chain is connected to the other side of the manhole cover, and the other end of the impact-resistant chain is connected to the other side of the manhole flange. The impact-resistant chain between the manhole flange and the manhole cover effectively prevents impacts when the manhole cover is opened, thus avoiding injury to workers caused by the rapid opening of the manhole cover.

Description

Technical Field

[0001] This utility model relates to the field of boilers, and in particular to a manhole door for a slag removal machine. Background Technology

[0002] Boiler manholes are critical structures used for personnel to enter and exit the interior of boilers during maintenance or inspection. Their main functions include installing, disassembling, cleaning, and repairing internal equipment. The structure is referenced in patent document CN103411436A, which discloses a water-cooled quick-opening manhole device for a flue-type waste heat boiler.

[0003] After the boiler is in use, the internal pressure is relatively high. If the manhole cover is opened rashly, it may be quickly blown open due to the high internal pressure, which could then collide with the staff, posing a safety hazard. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a manhole door for a slag removal machine. An impact-resistant chain is set between the manhole flange and the manhole cover, which can effectively prevent impacts from occurring when the manhole cover is opened, thus avoiding injury to workers caused by the manhole cover being pushed open quickly.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a manhole door for a slag removal machine, including a manhole flange, a manhole cover and an impact-resistant chain, wherein the manhole flange is closed by the manhole cover;

[0006] One side of the manhole cover is hinged to one side of the manhole flange, and a connecting seat is provided on the other side of the manhole cover. The connecting seat is connected to the other side of the manhole flange by a pin.

[0007] One end of the impact-resistant chain is connected to the other side of the manhole cover, and the other end of the impact-resistant chain is connected to the other side of the manhole flange.

[0008] This solution incorporates an impact-resistant chain between the manhole flange and the manhole cover. This effectively prevents impacts from occurring when the manhole cover is opened, thus avoiding injury to workers caused by the rapid opening of the manhole cover. The impact-resistant chain also limits the opening angle of the manhole cover.

[0009] Preferably, the manhole cover is provided with internal ribs, which can significantly improve the strength of the manhole cover.

[0010] Preferably, the end face of the manhole flange is provided with a sealing groove corresponding to the manhole cover, and the sealing groove is provided with a sealing strip. This improves the sealing performance.

[0011] Preferably, the outer surface of the manhole cover is provided with two operating handles to facilitate opening the manhole cover.

[0012] Preferably, the manhole flange is provided with a hook, and the other end of the impact-resistant chain is connected to the hook. The position of the hook connected to the impact-resistant chain can be flexibly changed to adjust the opening and closing size of the manhole cover.

[0013] Preferably, the hook is a closed hook. When the manhole cover is not open, the hook detaches from the impact-resistant chain.

[0014] Preferably, the manhole flange is provided with a buffer seat, the buffer seat has a sliding hole pointing towards the impact-resistant chain, a buffer pin is slidably fitted in the sliding hole, the front end of the buffer pin is fixed to the hook, the rear end of the buffer pin is provided with a limiting stop, and a spring is sleeved on the buffer pin between the limiting stop and the end of the pin hole. Using a spring can provide cushioning when the manhole cover is opened, preventing the impact from the manhole cover from directly acting on the manhole flange, improving the overall service life, and reducing the operational risks for workers.

[0015] Preferably, the buffer seat is hinged relative to the manhole flange. This facilitates the installation of a sliding hole so that the buffer pin can slide relative to the buffer seat, and the hinged structure can automatically adapt to changes in the angle of the buffer pin.

[0016] Preferably, the outer surface of the manhole cover is provided with a plurality of connecting rings distributed from one side to the other, and the impact-resistant chain is detachably connected to the rings. This facilitates adjustment of the fixed position of the impact-resistant chain to control the opening and closing size of the manhole cover.

[0017] The beneficial effects of this utility model are:

[0018] Installing an impact-resistant chain between the manhole flange and the manhole cover can effectively prevent impacts from occurring when the manhole cover is opened, thus avoiding injury to workers caused by the manhole cover being pushed open too quickly. Attached Figure Description

[0019] 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 will be briefly introduced below. Obviously, the drawings described below are only three of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the hook according to an embodiment of the present utility model;

[0023] The components include: 1. Manhole cover; 2. Manhole flange; 3. Hook; 4. Hanging ring; 5. Operating handle; 6. Buffer seat; 7. Impact-resistant chain; 8. Spring; and 9. Limit stop. Detailed Implementation

[0024] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0025] Example 1

[0026] like Figure 1 As shown, a manhole door for a slag removal machine includes a manhole flange 2, a manhole cover 1, and an impact-resistant chain 7. The manhole flange 2 is closed by the manhole cover 1. One side of the manhole cover 1 is hinged to one side of the manhole flange 2, and a connecting seat is provided on the other side of the manhole cover 1. The connecting seat is connected to the other side of the manhole flange 2 by a pin. One end of the impact-resistant chain 7 is connected to the other side of the manhole cover 1, and the other end of the impact-resistant chain 7 is connected to the other side of the manhole flange 2.

[0027] This solution incorporates an impact-resistant chain 7 between the manhole flange 2 and the manhole cover 1. This effectively prevents impacts from occurring when the manhole cover 1 is opened, thus avoiding injury to workers caused by the rapid opening of the manhole cover 1. The impact-resistant chain 7 also limits the opening angle of the manhole cover 1.

[0028] The manhole cover 1 is provided with internal ribs, which can significantly improve the strength of the manhole cover 1.

[0029] The manhole flange 2 has a sealing groove on its end face corresponding to the manhole cover 1, and a sealing strip is provided in the sealing groove to improve sealing performance.

[0030] The outer surface of the manhole cover 1 is provided with two operating handles for easy opening.

[0031] The manhole flange 2 is equipped with a hook 3, and the other end of the impact-resistant chain 7 is connected to the hook 3. The position of the hook 3 connected to the impact-resistant chain 7 can be flexibly changed so as to adjust the opening and closing size of the manhole cover 1 by controlling the impact-resistant chain 7.

[0032] Example 2

[0033] Compared to Example 1, this example also includes the following features: [combination] Figure 3 As shown, the hook 3 is a closed hook 3. When the manhole cover 1 is not open, the hook 3 detaches from the impact-resistant chain 7.

[0034] The manhole flange 2 is equipped with a buffer seat 6, which has a sliding hole pointing towards the impact-resistant chain 7. A buffer pin is slidably fitted inside the sliding hole. The front end of the buffer pin is fixed to the hook 3, and the rear end of the buffer pin is equipped with a limiting stop 9. A spring 8 is sleeved on the buffer pin between the limiting stop 9 and the end of the pin hole. The spring 8 provides cushioning when the manhole cover 1 is opened, preventing the impact from the manhole cover 1 from directly acting on the manhole flange 2, improving the overall service life, and reducing the operational risks for workers.

[0035] The buffer seat 6 is hinged relative to the manhole flange 2. This facilitates the installation of a sliding hole so that the buffer pin can slide relative to the buffer seat 6, and the hinged structure can automatically adapt to changes in the angle of the buffer pin.

[0036] The outer surface of the manhole cover 1 is provided with a plurality of connecting rings 4 distributed from one side to the other, and the impact-resistant chain 7 is detachably connected to the rings 4. This facilitates adjustment of the fixed position of the impact-resistant chain 7 to control the opening and closing size of the manhole cover 1.

[0037] The beneficial effects of this utility model are:

[0038] An impact-resistant chain 7 is installed between the manhole flange 2 and the manhole cover 1 to effectively prevent impact from occurring the moment the manhole cover 1 is opened, which could cause injury to workers if the manhole cover 1 is pushed open too quickly.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A manhole door for a slag removal machine, characterized in that, Includes a manhole flange (2), a manhole cover (1), and an impact-resistant chain (7), wherein the manhole flange (2) is closed by the manhole cover (1); One side of the manhole cover (1) is hinged to one side of the manhole flange (2), and a connecting seat is provided on the other side of the manhole cover (1). The connecting seat is connected to the other side of the manhole flange (2) by a pin. One end of the impact-resistant chain (7) is connected to the other side of the manhole cover (1), and the other end of the impact-resistant chain (7) is connected to the other side of the manhole flange (2).

2. The manhole door for a slag removal machine according to claim 1, characterized in that: The manhole cover (1) is provided with an inner rib.

3. The manhole door for a slag removal machine according to claim 1, characterized in that: The manhole flange (2) has a sealing groove on its end face corresponding to the manhole cover (1), and the sealing groove is provided with a sealing strip.

4. The manhole door for a slag removal machine according to claim 1, characterized in that: Two operating handles are provided on the outer surface of the manhole cover (1).

5. The manhole door for a slag removal machine according to claim 1, characterized in that: The manhole flange (2) is provided with a hook (3), and the other end of the impact-resistant chain (7) is connected to the hook (3).

6. The manhole door for a slag removal machine according to claim 5, characterized in that: The hook (3) is a closed hook (3).

7. The manhole door for a slag removal machine according to claim 5, characterized in that: The manhole flange (2) is provided with a buffer seat (6), the buffer seat (6) is provided with a sliding hole pointing to the impact-resistant chain (7), a buffer pin is slidably fitted in the sliding hole, the front end of the buffer pin is fixed to the hook (3), the rear end of the buffer pin is provided with a limiting stop (9), and a spring (8) is sleeved on the buffer pin between the limiting stop (9) and the end of the pin hole.

8. A manhole door for a slag removal machine according to claim 7, characterized in that: The buffer seat (6) is hinged relative to the manhole flange (2).

9. A manhole door for a slag removal machine according to claim 7, characterized in that: The outer surface of the manhole cover (1) is provided with a plurality of connecting rings (4) distributed from one side to the other, and the impact-resistant chain (7) is detachably connected to the rings (4).

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