Quick-opening type manhole hook lock structure used in equipment

Abstract

The utility model relates to the related technical field of manholes, in particular to a quick-opening type manhole hook lock structure used in equipment, which comprises a manhole lock main body, and a fixing mechanism is arranged on the manhole lock main body. According to the quick-opening type manhole hook lock structure used in the equipment, through the arrangement of a clamping bolt and a fixing hole, when a manhole cover needs to be opened, a valve is rotated, the valve drives a connecting column to rotate, and when the connecting column rotates, a connecting shaft on the connecting column pulls the clamping bolt through a connecting rod to enable the clamping bolt to inwards extrude a spring and retract into a fixing groove; when the manhole cover needs to be closed, the manhole cover is buckled, the inner wall of the short pipe extrudes the clamping bolt to enable the clamping bolt to be contracted into the fixing groove, and when the opening of the fixing groove is aligned with the fixing hole, the spring pops the clamping bolt out of the fixing groove into the fixing hole to complete fixing.

Description

Technical Field

[0001] This utility model and related technical fields of manholes particularly relate to a quick-opening manhole hook lock structure for use inside equipment. Background Technology

[0002] A manhole is an opening structure used for personnel to enter and exit equipment for installation, maintenance, and safety inspection. It mainly consists of a short cylindrical section or pipe, a flange, and a manhole cover with a handle. For safety inspection purposes, pressure vessels require a certain number of manholes and a minimum size inspection port. Manhole materials include carbon steel and stainless steel. Based on pressure conditions, manholes are classified as atmospheric pressure manholes and pressurized manholes; based on shape, they are classified as circular, elliptical, and rectangular manholes (rectangular manholes are only suitable for atmospheric pressure equipment); based on installation location, they are classified as horizontal and vertical installation manholes.

[0003] The following problems exist with the manholes currently available on the market:

[0004] 1. When traditional manholes are used, opening manholes in the equipment will weaken the overall structural strength of the equipment to a certain extent during use, requiring additional reinforcement during the design and manufacturing process, which increases the cost and manufacturing difficulty;

[0005] 2. Most manholes may pose various safety hazards during use. For example, accidentally opening a manhole may lead to equipment leaks, sudden pressure drops, and in severe cases, personal injury. Utility Model Content

[0006] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-opening manhole hook lock structure for internal use of equipment, comprising a manhole lock body, wherein a fixing mechanism is provided on the manhole lock body;

[0008] The fixing mechanism includes a fixing block, a mounting groove, a connecting column, a valve, a connecting shaft, a connecting rod, a fixing groove, a spring, a bolt, and a fixing hole. The manhole lock body is provided with a fixing block, the fixing block has a mounting groove, the mounting groove has a connecting column inside, the connecting column has a valve fixed on it, the connecting shaft has a connecting shaft fixed on it, the outer wall of the connecting shaft has a connecting rod connected to it, the outer wall of the fixing block has a fixing groove, the fixing groove has a spring installed inside, the fixing groove has a bolt inside, and the inner wall of the manhole lock body has a fixing hole.

[0009] Preferably, the manhole lock body includes a short tube and a manhole cover, and the manhole cover is provided on the short tube.

[0010] Preferably, the connecting columns are symmetrically arranged about the central axis of the connecting shaft, and the inner wall dimension of the fixing groove matches the outer wall dimension of the spring.

[0011] Preferably, one end of the connecting rod is connected to a connecting shaft, and the other end of the connecting rod is connected to a locking bolt.

[0012] Preferably, one end of the spring is connected to a fixing groove, and the other end of the spring is connected to a retaining bolt.

[0013] Preferably, the fixing mechanism is provided with a sealing component; the sealing component includes a first connecting groove, an isolation ring, a second connecting groove and a sealing ring, the outer wall of the connecting column is provided with the first connecting groove, the inner wall of the first connecting groove is provided with the isolation ring, the outer wall of the fixing block is provided with the second connecting groove, and the inner wall of the second connecting groove is provided with the sealing ring.

[0014] Preferably, the inner wall dimension of the first connecting groove matches the outer wall dimension of the isolation ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This device uses a quick-opening manhole hook lock structure. Through the design of the bolt and fixing hole, when the manhole cover needs to be opened, the valve is rotated. The valve drives the connecting column to rotate. As the connecting column rotates, the connecting shaft on the connecting column pulls the bolt inward through the connecting rod, causing it to compress the spring and retract into the fixing groove. This allows the manhole cover to open. When the manhole cover needs to be closed, it is fastened. At this time, the inner wall of the short pipe compresses the bolt, causing it to retract into the fixing groove. When the opening of the fixing groove aligns with the fixing hole, the spring will pop the bolt out of the fixing groove and into the fixing hole to complete the fixation.

[0017] 2. The device uses a quick-opening manhole hook lock structure. With the setting of the sealing ring, when the manhole cover is closed, the inner wall of the short tube and the outer wall of the fixed block will jointly squeeze the sealing ring, so that the space between the inner wall of the short tube and the outer wall of the fixed block is filled, thereby achieving a seal. Then, the keycaps in the collection box are dried by the air drying component, saving a lot of time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the fixing block and the mounting groove used in conjunction with this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the spring and the bolt used in conjunction with this utility model;

[0021] Figure 4 This is a schematic diagram of the sealing assembly structure of this utility model;

[0022] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Manhole lock body; 11. Short pipe; 12. Manhole cover; 2. Fixing mechanism; 21. Fixing block; 22. Mounting groove; 23. Connecting post; 24. Valve; 25. Connecting shaft; 26. Connecting rod; 27. Fixing groove; 28. Spring; 29. ​​Bolt; 210. Fixing hole; 3. Sealing assembly; 31. First connecting groove; 32. Isolation ring; 33. Second connecting groove; 34. Sealing ring; Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a quick-opening manhole hook lock structure for internal use of equipment, including a manhole lock body 1, and a fixing mechanism 2 is provided on the manhole lock body 1;

[0026] The fixing mechanism 2 includes a fixing block 21, a mounting groove 22, a connecting column 23, a valve 24, a connecting shaft 25, a connecting rod 26, a fixing groove 27, a spring 28, a latch 29, and a fixing hole 210. The manhole lock body 1 is provided with a fixing block 21, which has a mounting groove 22. A connecting column 23 is located inside the mounting groove 22, and a valve 24 is fixed to the connecting column 23. A connecting shaft 25 is fixed to the connecting column 23, and a connecting rod 26 is connected to the outer wall of the connecting shaft 25. A fixing groove 27 is located on the outer wall of the fixing block 21, and a spring 28 and a latch 29 are installed inside the fixing groove 27. A fixing hole 210 is located on the inner wall of the manhole lock body 1. Through the arrangement of the fixing block 21, mounting groove 22, connecting column 23, valve 24, connecting shaft 25, connecting rod 26, fixing groove 27, spring 28, latch 29, and fixing hole 210, in use, the connecting rod 26 is installed on the connecting shaft 25. The outer wall of manhole cover 12 is then fixed, and the connecting shaft 25 is fixed between the two connecting posts 23. The spring 28 is placed in the fixing groove 27, and the bolt 29 is placed in the fixing groove 27. The connecting rod 26 is connected to the outer wall of the bolt 29. The fixing block 21 is then installed on the bottom wall of the manhole cover 12. When the manhole cover 12 needs to be opened, the valve 24 is rotated. The valve 24 drives the connecting post 23 to rotate. When the connecting post 23 rotates, the connecting shaft 25 on the connecting post 23 is... 5 will pull the bolt 29 through the connecting rod 26 to compress the spring 28 inward and retract it into the fixing groove 27, at which time the manhole cover 12 can be opened. When the manhole cover 12 needs to be closed, the manhole cover 12 is fastened. At this time, the inner wall of the short tube 11 will compress the bolt 29, causing it to retract into the fixing groove 27. When the opening of the fixing groove 27 is aligned with the fixing hole 210, the spring 28 will pop the bolt 29 out of the fixing groove 27 into the fixing hole 210 to complete the fixation.

[0027] Furthermore, the manhole lock body 1 includes a short pipe 11 and a manhole cover 12. The manhole cover 12 is provided on the short pipe 11. With the provision of the short pipe 11 and the manhole cover 12, when in use, the short pipe 11 is installed to the equipment that needs to use the manhole lock body 1 through the flange, and then it can be used.

[0028] Furthermore, the connecting post 23 is symmetrically arranged with respect to the central axis of the connecting shaft 25, and the inner wall size of the fixing groove 27 matches the outer wall size of the spring 28. With the setting of the connecting post 23, when it is necessary to open the manhole cover 12, the valve 24 is rotated, and the valve 24 drives the connecting post 23 to rotate. When the connecting post 23 rotates, the connecting shaft 25 on the connecting post 23 will pull the latch 29 through the connecting rod 26 to squeeze the spring 28 inward and retract it into the fixing groove 27. At this time, the manhole cover 12 can be opened.

[0029] Furthermore, one end of the connecting rod 26 is connected to the connecting shaft 25, and the other end of the connecting rod 26 is connected to the latch 29. With the setting of the connecting rod 26, when it is necessary to open the manhole cover 12, the valve 24 is rotated. The valve 24 drives the connecting column 23 to rotate. When the connecting column 23 rotates, the connecting shaft 25 on the connecting column 23 will pull the latch 29 through the connecting rod 26 to compress the spring 28 inward and retract it into the fixing groove 27. At this time, the manhole cover 12 can be opened.

[0030] Furthermore, one end of the spring 28 is connected to a fixing groove 27, and the other end of the spring 28 is connected to a latch 29. With the setting of the spring 28, when in use, the spring 28 can provide an outward force when the latch 29 retracts into the fixing groove 27, so that the latch 29 can pop out of the fixing groove 27 at the first time.

[0031] Furthermore, a sealing component 3 is provided on the fixing mechanism 2; the sealing component 3 includes a first connecting groove 31, an isolation ring 32, a second connecting groove 33, and a sealing ring 34. The outer wall of the connecting column 23 has a first connecting groove 31, and the isolation ring 32 is provided inside the first connecting groove 31. The outer wall of the fixing block 21 has a second connecting groove 33, and the sealing ring 34 is provided inside the second connecting groove 33. Through the arrangement of the first connecting groove 31, the isolation ring 32, the second connecting groove 33, and the sealing ring 34, in use, the isolation ring 32 is installed at the connection between the valve 24 and the fixing block 21, and the sealing ring 34 is installed in the second connecting groove 33 on the outer wall of the fixing block 21. When the manhole cover 12 is closed, the inner wall of the short pipe 11 and the outer wall of the fixing block 21 will jointly squeeze the sealing ring 34, so that it fills the space between the inner wall of the short pipe 11 and the outer wall of the fixing block 21, thereby achieving a seal.

[0032] Furthermore, the inner wall dimensions of the first connecting groove 31 match the outer wall dimensions of the isolation ring 32.

[0033] Working principle: In use, the short pipe 11 is installed to the equipment requiring the manhole lock body 1 via a flange. The connecting rod 26 is installed on the outer wall of the connecting shaft 25, and then the connecting shaft 25 is fixed between the two connecting posts 23. The spring 28 is placed in the fixing groove 27, and then the bolt 29 is placed in the fixing groove 27. The connecting rod 26 is connected to the outer wall of the bolt 29. Then, the fixing block 21 is installed on the bottom wall of the manhole cover 12. When the manhole cover 12 needs to be opened, the valve 24 is rotated. The valve 24 drives the connecting post 23 to rotate. When the connecting post 23 rotates, the connecting shaft 25 on the connecting post 23 will pull the bolt 29 through the connecting rod 26, causing it to squeeze the spring 28 inward and retract into the fixing groove 27. At this point, the manhole cover 12 can be opened. When it is necessary to close the manhole cover 12, it is fastened. At this time, the inner wall of the short pipe 11 will squeeze the bolt 29, causing it to retract into the fixing groove 27. When the opening of the fixing groove 27 is aligned with the fixing hole 210, the spring 28 will pop the bolt 29 out of the fixing groove 27 into the fixing hole 210 to complete the fixation. The isolation ring 32 is installed at the connection between the valve 24 and the fixing block 21. The sealing ring 34 is installed in the second connecting groove 33 on the outer wall of the fixing block 21. When the manhole cover 12 is closed, the inner wall of the short pipe 11 and the outer wall of the fixing block 21 will jointly squeeze the sealing ring 34, filling the space between the inner wall of the short pipe 11 and the outer wall of the fixing block 21 to achieve a seal.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-opening manhole hook lock structure for internal use in equipment, comprising a manhole lock body (1), characterized in that: The manhole lock body (1) is provided with a fixing mechanism (2); the fixing mechanism (2) includes a fixing block (21), a mounting groove (22), a connecting column (23), a valve (24), a connecting shaft (25), a connecting rod (26), a fixing groove (27), a spring (28), a bolt (29), and a fixing hole (210). The manhole lock body (1) is provided with a fixing block (21), and the fixing block (21) has a mounting groove (22) inside. A connecting column (23) is provided, a valve (24) is fixed on the connecting column (23), a connecting shaft (25) is fixed on the connecting column (23), a connecting rod (26) is connected to the outer wall of the connecting shaft (25), a fixing groove (27) is opened on the outer wall of the fixing block (21), a spring (28) is installed inside the fixing groove (27), a latch (29) is provided inside the fixing groove (27), and a fixing hole (210) is opened on the inner wall of the manhole lock body (1).

2. The quick-opening manhole hook lock structure for internal use in equipment according to claim 1, characterized in that: The manhole lock body (1) includes a short tube (11) and a manhole cover (12), and the manhole cover (12) is provided on the short tube (11).

3. The quick-opening manhole hook lock structure for internal use in equipment according to claim 1, characterized in that: The connecting column (23) is symmetrically arranged with respect to the central axis of the connecting shaft (25), and the inner wall dimension of the fixing groove (27) matches the outer wall dimension of the spring (28).

4. The quick-opening manhole hook lock structure for internal use in equipment according to claim 1, characterized in that: One end of the connecting rod (26) is connected to a connecting shaft (25), and the other end of the connecting rod (26) is connected to a bolt (29).

5. The quick-opening manhole hook lock structure for internal use in equipment according to claim 1, characterized in that: One end of the spring (28) is connected to a fixing groove (27), and the other end of the spring (28) is connected to a latch (29).

6. The quick-opening manhole hook lock structure for internal use in equipment according to claim 1, characterized in that: The fixing mechanism (2) is provided with a sealing component (3); the sealing component (3) includes a first connecting groove (31), an isolation ring (32), a second connecting groove (33) and a sealing ring (34). The outer wall of the connecting column (23) is provided with a first connecting groove (31), and the interior of the first connecting groove (31) is provided with an isolation ring (32). The outer wall of the fixing block (21) is provided with a second connecting groove (33), and the interior of the second connecting groove (33) is provided with a sealing ring (34).

7. A quick-opening manhole hook lock structure for internal use in equipment according to claim 6, characterized in that: The inner wall dimension of the first connecting groove (31) matches the outer wall dimension of the isolation ring (32).

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