Overhaul device for fire protection and maintenance

Abstract

The utility model provides an overhauling device for fire protection and maintenance, and particularly relates to the technical field of fire hydrant overhauling tools, the overhauling device comprises a limiting ring for limiting and fixing the head of a bolt, a plurality of circular grooves are formed in the limiting ring, two groups of adjusting grooves are formed in the circular grooves, and the circular grooves are rotatably provided with clamping ends matched with the head of the bolt. Adjusting blocks which are matched with the adjusting grooves and can rotate are arranged on the outer surface of the clamping end, each adjusting groove comprises two groove bodies which are arranged in an axial symmetry mode, and the rotating angle of the clamping end is 45 degrees; the limiting ring and the clamping ends on the limiting ring can be connected to the valve rod operation end protection cover in a sleeving mode, the head of a bolt on the valve rod operation end protection cover is clamped, and after clamping of the head of the bolt is completed, a worker can disassemble a screw on the bolt through an external tool. And the trouble of fixing the head of the bolt by workers is avoided, and the screw dismounting efficiency can be improved to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire hydrant maintenance tool technical field especially relates to a kind of maintenance devices for fire maintenance. BACKGROUND

[0002] Valve stem operating end protective cover its role is to prevent valve stem is exposed to the outside environment, avoid due to wind blowing, sunning, rain and dust, sundries etc. Erosion and lead to rust, damage, ensure that valve stem can be normally flexibly rotated, so that when needing to use fire hydrant can be smoothly opened and closed valve, it can also play certain shielding and protection effect, reduce the possibility that non-professional personnel or unintentional touching leads to valve stem is misoperated, ensure that fire hydrant is in normal standby state;

[0003] And in the process of fire hydrant maintenance, bolt on valve stem operating end protective cover is usually disassembled, then valve stem can be overhauled, however, when the bolt on protective cover is disassembled, first using spanner to loosen the nut, then using hand to fix the screw head, then the nut is continuously rotated by spanner, hand or other tools, and the nut is disassembled, however, the nut is fixed using hand, which is extremely easy to rotate in the process of nut disassembly, so as to affect the disassembly of the nut, at the same time, in the process of nut disassembly, staff needs to continuously observe whether the screw head is fixed stably, is easy to be distracted, so as to increase the time used for nut disassembly. UTILITARIAN CONTENT

[0004] In order to solve the above problems, the utility model provides a kind of maintenance device for fire maintenance to more exactly solve the above problems.

[0005] The utility model realizes by the following technical scheme:

[0006] The utility model provides a kind of maintenance device for fire maintenance, including the limiting ring for the limiting and fixing of bolt head, a plurality of circular grooves are formed in the limiting ring, two sets of adjusting grooves are formed in the circular groove, the circular groove rotatably is provided with the matched clamping end with bolt head, the outer surface of the clamping end is provided with the adjusting block that is matched with the adjusting groove, and the adjusting block can be rotated, one set of adjusting groove includes two slot bodies that are axially symmetric, and the rotation angle of the clamping end is 45 degrees.

[0007] Further, the outer surface of the limiting ring is welded with an extension ring, and a plurality of auxiliary disassembly parts for assisting the disassembly of the nut are arranged on the extension ring.

[0008] The utility model further, the auxiliary dismantling piece includes the connecting rod connected with the extension ring bottom, and is located the connecting rod bottom with the connecting rod is connected through the rotating part connecting plate, one end of connecting plate, and the below screw thread connection of the clamping end has the sleeve wrench, the both sides of sleeve wrench are provided with the auxiliary handle.

[0009] The utility model further, the rotating part includes the bearing.

[0010] The utility model further, the sleeve wrench includes the cylinder, the top of cylinder is equipped with the clamping groove with the screw cap cooperation, the cylinder is crossed and is provided with the through -hole, the bottom of clamping groove is brushed with lubricating oil.

[0011] The utility model has the advantages of:

[0012] The setting of the limiting ring and the plurality of clamping ends on the limiting ring can be sleeved with the valve rod operating end protection cover, and the bolt head on the valve rod operating end protection cover is clamped, and after the clamping of the bolt head is completed, the worker can use external tools to remove the screw on the bolt, which not only eliminates the worker's annoyance of fixing the bolt head, but also increases the efficiency of screw removal to a certain extent.

[0013] The setting of the circular groove, the adjusting groove and the adjusting block can make the clamping end rotate, and this condition is suitable for the clamping work of the clamping end and the bolt head, wherein the rotating effect of the clamping end itself is that the position angle of the clamping end is the same as the position angle of the screw head. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic diagram in the utility model;

[0015] Figure 2 It is the limiting ring and the clamping end split structure schematic diagram in the utility model;

[0016] Figure 3 It is the overall bottom structure schematic diagram in the utility model;

[0017] Figure 4 It is the auxiliary dismantling piece structure schematic diagram in the utility model.

[0018] In the drawing, 1, limiting ring, 11, circular groove, 12, adjusting groove, 121, groove body, 13, clamping end, 131, adjusting block, 2, extension ring, 3, auxiliary dismantling piece, 31, connecting rod, 32, connecting plate, 321, inner groove, 322, internal thread, 33, sleeve wrench, 331, cylinder, 332, clamping groove, 333, through -hole, 334, external thread, 34, auxiliary handle. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the following will combine the technical scheme in the utility model embodiment to make clear and complete description, obviously, the described embodiment is part of the utility model, rather than all. Based on the embodiment of the application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Embodiment

[0021] Reference Figure 1 And Figure 2 A kind of overhauling device for fire maintenance, including the limiting ring 1 for being limited to the head of bolt fixed, several circular grooves 11 are set in limiting ring 1, two sets of adjusting grooves 12 are set in circular groove 11, circular groove rotatably provided with the matching end 13 of bolt head, the outer surface of the matching end 13 is provided with the adjusting block 131 matched with adjusting groove 12, and rotatable, one set of adjusting groove 12 includes two slot bodies 121, the rotation angle of matching end 13 is 45 degrees;

[0022] The setting of limiting ring 1 and several matching ends 13 on limiting ring 1 can be connected with the valve rod operating end protective cover, and the bolt head on the valve rod operating end protective cover is clamped, and after the bolt head clamping is completed, the worker can use external tools to disassemble the screw on the bolt, which not only eliminates the worker's annoyance of fixing the bolt head, but also increases the efficiency of screw disassembly to a certain extent.

[0023] The setting of circular groove 11, adjusting groove 12 and adjusting block 131 can make the rotating work of matching end 13, and this condition is suitable for the clamping work of matching end 13 and bolt head;Specifically, when the worker clamps the matching end 13 and the bolt head, the worker can rotate the matching end 13 to make the angle of the matching end 13 the same as the angle of the bolt head, so as to ensure the clamping work of the matching end 13 to the bolt head, and further increase the application range of the equipment itself;Among them, because the worker actually installs the bolt, the head of the bolt will have a certain angle difference after installation, and the above condition is suitable for these conditions.

[0024] In the embodiment, the rotation angle of the matching end 13 is 45 degrees, which means that the maximum rotation angle of the matching end 13 is 45 degrees, wherein, because the angle difference of the bolt itself in the specific installation process will not be very large, therefore, 45 degrees rotation can be completely suitable for different fire hydrants.

[0025] As Figure 1 , Figure 3And Figure 4 As shown in the drawings, the outer surface of the limiting ring 1 is welded with an extension ring 2, and the upper portion of the extension ring 2 is provided with a plurality of auxiliary dismounting pieces 3 for assisting in dismounting the screw cap; the auxiliary dismounting piece 3 comprises a connecting rod 31 connected with the bottom of the extension ring 2, and a connecting plate 32 provided at the bottom of the connecting rod 31 and connected with the connecting rod 31 through a rotating piece, one end of the connecting plate 32 is threadedly connected with a socket wrench 33 below the clamping end 13, and the two sides of the socket wrench 33 are provided with auxiliary handles 34;

[0026] The provision of the auxiliary dismounting piece 3 can facilitate the worker to dismount the screw;

[0027] Wherein, before the installation of the limiting ring 1, the worker can rotate the connecting plate 32 and make the end of the connecting plate 32 disengage from below the limiting ring 1, and after the installation of the limiting ring 1 is completed, the worker can reversely rotate the connecting plate 32 and synchronously push the socket wrench 33 upward, and make the socket wrench 33 clamped with the screw, and then dismount the screw through the rotation of the socket wrench 33, and in the process of downward movement of the socket wrench 33, the outer surface thereof will gradually engage with the threads on the connecting plate 32, and the dismounting of the screw will be completed under the continuous rotation of the socket wrench 33;

[0028] Specifically, referring to Figure 4 , the upper end surface of the socket wrench 33 is provided with a first external thread 334, the connecting plate 32 is provided with an inner groove 321, and the inner groove 321 is provided with a first internal thread 322 matched with the first external thread 334; wherein, in the placing process of the socket wrench, the upper end surface of the socket wrench is located above the inner groove 321, and at the same time, in this state, the first external thread 334 is not engaged with the first internal thread 322, and the advantage of this arrangement is that it can facilitate the worker to push the socket wrench 33 upward, thereby ensuring the clamping of the socket wrench 33 with the screw.

[0029] In this embodiment, when the first external thread 334 engages with the first internal thread 322, the socket wrench 33 will complete the limiting work of the connecting plate 32, and the presence of the first internal thread 322 on the connecting plate 32 will also complete the fixing work of the socket wrench 33, and the treatment of this state can not only facilitate the worker to dismount the screw, but also make the screw itself move downward along the preset trajectory uniformly, to a certain extent, to play a role in protecting the screw, and at the same time, to eliminate the problem of using the socket wrench to dismount the screw, that is, the worker needs to continuously apply upward force to the socket wrench, and the use of this force will relatively reduce the worker's rotating force on the socket wrench.

[0030] In the embodiment, the rotating member comprises a bearing, and other rotating structures, such as a rotary joint, can also be adopted by those skilled in the art, and the rotating angle of the connecting plate 32 can also be limited by workers, and the rotation of the connecting plate 32 itself is to make the end of the connecting plate 32 to be out of the lower part of the limiting ring, and the effect can be achieved without 360-degree rotation of the connecting plate 32, and the rotating member itself can also be a fixed-angle rotating structure.

[0031] In the embodiment, the sleeve wrench 33 comprises a column body 331, the top of the column body 331 is provided with a clamping groove 332 matched with the nut, a through hole 333 is arranged in the column body 331, and lubricating oil is coated on the bottom of the clamping groove 332.

[0032] The clamping groove 332 can be clamped with the screw, and the sleeve wrench can ensure the disassembly of the screw, and the existence of the lubricating oil can make the disassembly of the screw by the sleeve wrench 33 more smooth.

[0033] In the embodiment, the clamping groove 332 is arranged in the same style as the screw, the outer part of the clamping end 13 is circular, and the inner part is in the same style as the head part of the screw.

[0034] It should be noted that the utility model only protects the mechanical part, and the function realized by the software control part related thereto is not within the protection range of the utility model.

[0035] Of course, the utility model also has other various implementation manners, and other implementation manners obtained by those skilled in the art based on the embodiment without any creative labor are within the protection range of the utility model.

Claims

1. An inspection device for fire maintenance, characterized by, The application relates to a limiting ring for limiting and fixing a bolt head, a plurality of circular grooves are formed in the limiting ring, two groups of adjusting grooves are formed in the circular grooves, a clamping end matched with the bolt head is rotatably arranged in the circular groove, an adjusting block matched with the adjusting groove and rotatable is arranged on the outer surface of the clamping end, one group of the adjusting grooves comprises two axially-symmetric groove bodies, and the rotating angle of the clamping end is 45 degrees.

2. A maintenance access device for fire protection maintenance according to claim 1, wherein, An extension ring is welded on the outer surface of the limiting ring, a plurality of auxiliary dismounting pieces for assisting in dismounting a nut are arranged on the extension ring.

3. A maintenance access device according to claim 2, wherein, The auxiliary dismounting piece comprises a connecting rod connected with the bottom of the extension ring, a connecting plate arranged at the bottom of the connecting rod and connected with the connecting rod through a rotating piece, a sleeve wrench threadedly connected with one end of the connecting plate and located below the clamping end, and auxiliary handles arranged on the two sides of the sleeve wrench.

4. A maintenance access device according to claim 3, wherein, The rotating piece comprises a bearing.

5. The maintenance access device of claim 3, wherein, The sleeve wrench comprises a column, a clamping groove matched with the nut is formed in the top of the column, a through hole is arranged in the column, and lubricating oil is brushed on the bottom of the clamping groove.

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