Boiler manhole screwing and unscrewing tool

Abstract

The utility model belongs to the technical field of maintenance tools, disclose a boiler manhole screw dismounting tool, this boiler manhole screw dismounting tool includes sleeve, elastic part, die block, lock nut and core drill bit, elastic part is located in the sleeve, and one end of elastic part is connected in the inside wall of sleeve, and die block is located in the sleeve and can butt with the other end of elastic part, under the action of elastic part, die block can be stably sleeved on screw, avoid in the process of dismounting die block and screw and separate, lock nut is arranged in the through -hole of sleeve and can butt in the outer peripheral wall of die block, to make die block can be fixed relative to sleeve, prevent die block slipping in the sleeve and influence die block to the dismounting of screw on the cover plate of boiler manhole, and core drill bit sets up in the sleeve, not only can dismount screw and open the cover plate of boiler manhole, convenient personnel enter the inside boiler and overhaul, and core drill bit can carry out reaming to the cover plate of boiler manhole, and the function is various, and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of maintenance tool technology, and in particular to a tool for removing and installing boiler manhole screws. Background Technology

[0002] A boiler manhole is an opening through which maintenance personnel enter the boiler container during inspection or maintenance, for the installation, disassembly, cleaning, and repair of internal equipment. A manhole typically consists of a cylindrical section covered by a cover plate, secured with screws.

[0003] When the boiler liner needs inspection or maintenance, a general-purpose screw removal tool is typically used to remove and install screws, opening the cover to facilitate access for maintenance personnel. However, the die of this screw removal tool is prone to slipping inside the sleeve, or even repeatedly detaching from the screw, affecting the efficiency of removing and installing screws on the boiler manhole cover.

[0004] Therefore, there is an urgent need for tools to remove and install boiler manhole screws in order to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a tool for disassembling and assembling boiler manhole screws. It can enlarge the hole of the boiler manhole cover plate, has multiple functions, and can prevent the die from detaching from the screw during use and prevent the die from slipping in the sleeve, which would affect the disassembly and assembly of the screws on the boiler manhole cover plate.

[0006] To address the aforementioned problems in the existing technology, this utility model adopts the following technical solution:

[0007] Boiler manhole bolt removal and installation tools, including:

[0008] Sleeve;

[0009] An elastic element is located inside the sleeve, and one end of the elastic element is connected to the inner wall of the sleeve.

[0010] A die, located inside the sleeve and capable of abutting against the other end of the elastic element, is used for assembling and disassembling boiler manhole screws;

[0011] A locking nut is inserted through the communicating hole of the sleeve and can abut against the outer peripheral wall of the die, so that the die can be fixed relative to the sleeve;

[0012] A reaming drill bit is disposed on the sleeve, and the reaming drill bit is used for reaming the manhole of a boiler.

[0013] Preferably, the boiler manhole screw disassembly and assembly tool further includes a connecting rod, and a first fixing member is protruding from the outer periphery of the sleeve. The first fixing member has a connecting hole, and the connecting rod is fixedly connected to the first fixing member through the connecting hole. The connecting rod is used to rotate the sleeve.

[0014] Preferably, the inner circumference of the connecting hole is provided with an internal thread, the outer circumference of the connecting rod is provided with an external thread, and the connecting rod is threadedly connected to the connecting hole.

[0015] Preferably, there are multiple first fasteners, which are spaced apart along the circumferential direction of the sleeve.

[0016] Preferably, the outer periphery of the sleeve is further provided with a second fixing member, the second fixing member being located on the outer peripheral wall of the open end of the sleeve, and the second fixing member being configured to be detachably connected to the connecting rod.

[0017] Preferably, the second fixing member is threadedly connected to the connecting rod.

[0018] Preferably, there are multiple second fasteners, which are spaced apart along the circumferential direction of the sleeve.

[0019] Preferably, there are multiple locking nuts, which are spaced apart along the circumferential direction of the sleeve.

[0020] Preferably, the boiler manhole screw disassembly and assembly tool further includes a tapping drill bit, which is detachably connected to the sleeve and is used for tapping the boiler manhole.

[0021] Preferably, the bottom of the sleeve is provided with a threaded hole, and the end of the reaming drill bit is provided with an external thread, and the reaming drill bit is threadedly connected to the sleeve through the threaded hole.

[0022] The beneficial effects of this utility model are as follows:

[0023] This utility model provides a boiler manhole screw disassembly and assembly tool. An elastic element is located inside a sleeve, with one end connected to the inner wall of the sleeve. A die is located inside the sleeve and abuts against the other end of the elastic element. Under the action of the elastic element, the die exerts a greater force on the screw, allowing it to be securely fitted onto the screw. A locking nut passes through the connecting hole of the sleeve and abuts against the outer peripheral wall of the die, fixing the die relative to the sleeve and preventing slippage within the sleeve, which would affect the disassembly and assembly of the screws on the boiler manhole cover. A reaming drill bit is located in the sleeve and is used for reaming the boiler manhole, offering multiple functions. The die is aligned with the open end of the sleeve and pressed down, causing the die to abut against the elastic element. Simultaneously, the elastic element gradually shortens, increasing the elastic force on the die. Then, when the die is fully inserted into the sleeve, the locking nut is aligned with the connecting hole of the sleeve and rotated. The locking nut moves along its own axis and abuts against the outer peripheral wall of the die, fixing the die securely within the sleeve and preventing slippage. Finally, the die is fitted onto the screw on the boiler manhole. The operator quickly rotates the sleeve to remove the screw, allowing the boiler manhole cover to be opened for easy access to the boiler for maintenance. Simultaneously, the elastic element applies force to the screw, preventing the die from detaching from the screw during disassembly. Furthermore, a reaming drill bit is installed at the other end of the sleeve, which can enlarge the hole in the boiler manhole cover, offering versatility and ease of use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the boiler manhole screw disassembly and assembly tool provided in an embodiment of the present utility model;

[0025] Figure 2 A cross-sectional view of the boiler manhole screw disassembly and assembly tool provided in this embodiment of the utility model.

[0026] Figure label:

[0027] 1. Sleeve; 2. Elastic element; 3. Die; 4. Locking nut; 5. Reamer bit; 6. Connecting rod; 7. First fixing element; 8. Second fixing element; 9. Tapping bit. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] like Figures 1-2 As shown, in this embodiment, the boiler manhole screw removal and installation tool includes a sleeve 1, an elastic element 2, a die 3, a locking nut 4, and a reaming drill bit 5. The elastic element 2 is located inside the sleeve 1, with one end connected to the inner wall of the sleeve 1. The die 3 is located inside the sleeve 1 and abuts against the other end of the elastic element 2; the die 3 is used for removing and installing the boiler manhole screw. The locking nut 4 passes through the connecting hole of the sleeve 1 and abuts against the outer peripheral wall of the die 3, allowing the die 3 to be fixed relative to the sleeve 1. The reaming drill bit 5 is disposed in the sleeve 1 and is used for reaming the boiler manhole.

[0033] The sleeve 1 can be rotated by hand or through external force. Due to the limited space between the screws on the boiler manhole cover and surrounding components, and the thin sidewall of the sleeve 1, it can be used to assemble and disassemble the screws within this confined space. The elastic element 2 is a spring. In its naturally extended state, the length of the elastic element 2 is greater than the length of the sleeve 1, and its outer diameter is smaller than the inner diameter of the sleeve 1, allowing it to be accommodated within the sleeve 1. One end of the elastic element 2 is fixedly connected to the inner sidewall of the sleeve 1. The die 3 is detachably connected to the sleeve 1, meaning the die 3 can be positioned at the open end of the sleeve 1 and abut against the other end of the elastic element 2. In this state, the elastic element 2 is compressed, and under its influence, the die 3 exerts a greater force on the screw, ensuring a secure fit and preventing it from detaching. A connecting hole is provided on the side wall of the open end of the sleeve 1. The connecting hole is a threaded hole. The locking nut 4 is threadedly connected to the connecting hole, allowing the locking nut 4 to move in a direction perpendicular to the side wall of the sleeve 1 and abut against the outer peripheral wall of the die 3. This fixes the die 3 inside the sleeve 1, preventing it from slipping and affecting the installation and removal of screws on the boiler manhole cover. This is especially important when dealing with extremely difficult-to-remove screws that require additional force when using tools. The locking nut 4 ensures that the die 3 does not slip inside the sleeve 1. The reaming drill bit 5 is installed at the end of the sleeve 1 away from the open end and is used to enlarge the boiler manhole, providing multiple functions.

[0034] The operation process of this boiler manhole screw removal and installation tool is as follows: First, align the die 3 with the open end of the sleeve 1 and press it down so that the die 3 abuts against the elastic element 2. At the same time, the elastic element 2 gradually shortens and the elastic force on the die 3 increases. Then, when the die 3 is completely placed inside the sleeve 1, align the locking nut 4 with the connecting hole of the sleeve 1 and rotate it. The locking nut 4 can move along its own axis and abut against the outer peripheral wall of the die 3, so that the die 3 is fixed inside the sleeve 1, securely installed, and prevents slippage. Finally, with the die 3 on the screw in the boiler manhole, the operator holds the sleeve 1 and quickly rotates it to remove the screw, thereby opening the cover of the boiler manhole, facilitating personnel to enter the boiler for maintenance. At the same time, under the elastic action of the elastic element 2, the die 3 applies force to the screw, preventing the die 3 from separating from the screw during the disassembly process. Furthermore, a reaming drill bit 5 is installed at the other end of the sleeve 1. The reaming drill bit 5 can enlarge the hole in the cover plate of the boiler manhole without the need for other tools. It is versatile and easy to use. After maintenance is completed, repeat the above operation to install the screws on the cover plate, so that the cover plate is fixed to the boiler manhole and sealed by the screws.

[0035] The bottom of the sleeve 1 has a threaded hole, and the end of the reaming drill bit 5 has an external thread. The reaming drill bit 5 is threadedly connected to the sleeve 1 through the threaded hole. The reaming drill bit 5 is installed at the end of the sleeve 1 away from the opening end through threaded engagement, and is used to ream the boiler manhole. It has multiple functions and is easy to use.

[0036] Continue to refer to Figures 1-2 The boiler manhole screw removal and installation tool also includes a connecting rod 6. A first fixing member 7 protrudes from the outer periphery of the sleeve 1, and the first fixing member 7 has a connecting hole. The connecting rod 6 is fixedly connected to the first fixing member 7 through the connecting hole. The connecting rod 6 is used to rotate the sleeve 1. The first fixing member 7 is configured as a fixing block, and the connecting rod 6 is a force-applying rod. The inner periphery of the connecting hole has an internal thread, and the outer periphery of the connecting rod 6 has an external thread. The connecting rod 6 is threadedly connected to the connecting hole. After the connecting rod 6 is fixedly installed on the first fixing member 7 of the sleeve 1, the operator can grip the connecting rod 6 and apply external force to rotate the sleeve 1 to remove or install the screw, and to enlarge the hole in the cover plate of the boiler manhole using the reaming drill bit 5. Preferably, there are multiple first fixing members 7, which are spaced apart along the circumference of the sleeve 1. In this embodiment, there are two first fixing members 7, which are positioned opposite each other and spaced apart on the outer circumference of the sleeve 1. There are also two connecting rods 6, which are respectively installed on the two first fixing members 7. The operator can hold the two connecting rods 6 with both hands at the same time and rotate the sleeve 1, which saves time and effort and improves the efficiency of disassembly and assembly.

[0037] Continue to refer to Figures 1-2 The sleeve 1 also has a second fixing member 8 protruding from its outer periphery. The second fixing member 8 is located on the outer peripheral wall of the open end of the sleeve 1 and is configured to be detachably connected to the connecting rod 6. The second fixing member 8 is a fixing block located on the outer peripheral wall of the sleeve 1 near the die 3. The inner periphery of the connecting hole of the second fixing member 8 has an internal thread, and the outer periphery of the connecting rod 6 has an external thread. The second fixing member 8 is threadedly connected to the connecting rod 6. After the sleeve 1 is fitted onto the screw, depending on the situation of the surrounding parts of the screw, the connecting rod 6 is used to select either the first fixing member 7 away from the die 3 or the second fixing member 8 near the die 3 to rotate the sleeve 1, thereby removing the screw. Preferably, there are multiple second fixing members 8, which are spaced apart along the circumference of the sleeve 1. They have the same effect as the first fixing member 7 described above, and will not be described in detail further.

[0038] Optionally, there are multiple locking nuts 4, spaced apart along the circumference of the sleeve 1. When the die 3 is completely placed inside the sleeve 1, the multiple locking nuts 4 can rotate and move along their own axis and abut against the outer peripheral wall of the die 3, so that the die 3 is fixed inside the sleeve 1, making the installation more secure and preventing slippage.

[0039] Continue to refer to Figures 1-2 The boiler manhole screw removal and installation tool also includes a tapping drill bit 9, which is detachably connected to the sleeve 1. The tapping drill bit 9 is used for tapping the boiler manhole. The bottom of the sleeve 1 has a threaded hole, and the end of the tapping drill bit 9 has an external thread. The tapping drill bit 9 is threadedly connected to the sleeve 1 through the threaded hole. The tapping drill bit 9 is used for tapping the boiler manhole, offering more versatile functionality and convenient assembly and disassembly.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tool for removing and installing boiler manhole screws, characterized in that, include: Sleeve (1); An elastic element (2) is located inside the sleeve (1), and one end of the elastic element (2) is connected to the inner wall of the sleeve (1); The die (3) is located inside the sleeve (1) and can abut against the other end of the elastic member (2). The die (3) is used to install and remove the boiler manhole screw. A locking nut (4) is inserted through the communicating hole of the sleeve (1) and can abut against the outer peripheral wall of the die (3) so that the die (3) can be fixed relative to the sleeve (1); A reaming drill bit (5) is disposed on the sleeve (1) and is used for reaming the manhole of the boiler.

2. The boiler manhole screw disassembly and assembly tool according to claim 1, characterized in that, The boiler manhole screw disassembly and assembly tool also includes a connecting rod (6). The outer periphery of the sleeve (1) is provided with a first fixing member (7). The first fixing member (7) has a connecting hole. The connecting rod (6) is fixedly connected to the first fixing member (7) through the connecting hole. The connecting rod (6) is used to rotate the sleeve (1).

3. The boiler manhole screw disassembly and assembly tool according to claim 2, characterized in that, The inner circumference of the connecting hole is provided with an internal thread, and the outer circumference of the connecting rod (6) is provided with an external thread. The connecting rod (6) is threadedly connected to the connecting hole.

4. The boiler manhole screw disassembly and assembly tool according to claim 2, characterized in that, There are multiple first fasteners (7), and multiple first fasteners (7) are spaced apart along the circumferential direction of the sleeve (1).

5. The boiler manhole screw disassembly and assembly tool according to claim 2, characterized in that, The outer periphery of the sleeve (1) is also provided with a second fixing member (8), which is located on the outer periphery wall of the open end of the sleeve (1) and is configured to be detachably connected to the connecting rod (6).

6. The boiler manhole screw removal and installation tool according to claim 5, characterized in that, The second fastener (8) is threadedly connected to the connecting rod (6).

7. The boiler manhole screw disassembly and assembly tool according to claim 5, characterized in that, There are multiple second fasteners (8), and multiple second fasteners (8) are spaced apart along the circumferential direction of the sleeve (1).

8. The boiler manhole screw disassembly and assembly tool according to claim 1, characterized in that, There are multiple locking nuts (4), which are spaced apart along the circumferential direction of the sleeve (1).

9. The boiler manhole screw disassembly and assembly tool according to claim 1, characterized in that, The boiler manhole screw disassembly and assembly tool also includes a tapping drill bit (9), which is detachably connected to the sleeve (1) and is used for tapping the boiler manhole.

10. The boiler manhole screw removal and installation tool according to claim 1, characterized in that, The bottom of the sleeve (1) is provided with a threaded hole, and the end of the reaming drill bit (5) is provided with an external thread. The reaming drill bit (5) is threadedly connected to the sleeve (1) through the threaded hole.

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