CN116352639A - Device for fastening bolt in limited space - Google Patents

Abstract

The application discloses a device for fastening bolts in a limited space, and relates to the bolt fastening technology. The device of this application includes casing, first gear and second gear, first gear with the chain has been cup jointed between the second gear, be equipped with first mounting hole on the first gear, be equipped with the ratchet in the first mounting hole, be equipped with pawl and shell fragment on the first gear, the center of ratchet is equipped with the first draw-in groove that link up, the center of second gear is equipped with the second draw-in groove that link up, detachable installs the rocker on the first draw-in groove, detachable installs the bolt housing on the second draw-in groove, the bolt housing can overlap on the screw rod. Can make bolt or screw reach light dismantlement effect in the clearance, the device still changes the bolt cover to satisfy different bolt shape and the specification of daily work, can regard as the transmission part with ratchet spanner or electric spanner commonly used simultaneously, thereby reach the purpose that light swift dismantles the screw.

Description

Device for fastening bolt in limited space

Technical Field

The present application relates to a bolt tightening technique, and more particularly, to a device for tightening a bolt in a limited space.

Background

In the operation of substation equipment institutions, particularly, the device for fastening bolts in a deep and narrow limited space with obstacles is related, the bolts are in the deep and narrow limited space, and the bolts are prevented from being fastened by conventional means. The hexagonal bolt is fastened by using a spanner, the spanner generally needs to rotate by a larger angle, but the periphery of a pipeline is blocked, the spanner cannot rotate by a required angle, a ratchet spanner with a small rotation angle can be adopted, and the spanner cannot be fastened by a conventional method in a deep and narrow limited space with a minimum rotation angle.

Disclosure of Invention

In view of this, in order to solve or improve the above-described drawbacks of the prior art, the present application proposes a device for fastening a bolt in a limited space.

In order to achieve the above-mentioned purpose, the application provides a device for fastening bolts in restricted space, which comprises a housin, the casing is rectangular form, be equipped with the mounting groove in the casing, the both ends of mounting groove are equipped with first gear and second gear respectively, first gear with the chain has been cup jointed between the second gear, be equipped with first mounting hole on the first gear, be equipped with the ratchet in the first mounting hole, be equipped with pawl and shell fragment on the first gear, the shell fragment can drive the pawl with the ratchet meshing, the center of ratchet is equipped with the first draw-in groove that link up, the center of second gear is equipped with the second draw-in groove that link up, detachable installs the rocker on the first draw-in groove, detachable installs the bolt housing on the second draw-in groove, the bolt housing can overlap on the screw rod.

In other forms that may be implemented, the ratchet is coupled to a first mounting hole on the first gear via a bearing.

In other possible forms, the pawl and the elastic piece are symmetrically arranged on the first gears at two sides of the bearing.

In other realizable forms, the pawl and the spring are symmetrically disposed on the same side of the first gear.

In other realizable forms, the first clamping groove is a square opening, the rocker comprises a first square rod, a rocker arm and a grabbing handle, the first square rod is matched with the first clamping groove, one end of the rocker arm is fixedly connected with the first square rod, and the other end of the rocker arm is fixedly connected with the grabbing handle.

In other forms that can realize, the second draw-in groove is square mouth, the bolt housing includes second square pole and cover body, the second square pole with second draw-in groove looks adaptation, the one end of cover body with second square pole fixed connection, the other end of cover body is equipped with the pocket of inwards extending, pocket and bolt looks adaptation.

In other forms that may be implemented, the cross-section of the cuff is hexagonal.

In other realizable forms, a chain slot is provided in the mounting slot between the first gear and the second gear, the chain being capable of passing through the chain slot.

Advantageous effects

Compared with the prior art, the application has the advantages that: the utility model provides a can make bolt or screw reach light dismantlement effect in the clearance, the bolt cover is still changed to the device to satisfy different bolt shape and the specification of daily work, can regard as driving medium with ratchet spanner or electric spanner commonly used simultaneously, thereby reach the purpose of light swift dismantlement screw.

Drawings

FIG. 1 is a schematic view of a device for bolt tightening in a confined space of the present application;

fig. 2 is a schematic view of a device for bolt tightening in a confined space of the present application.

The main drawing in the figure illustrates: 1. a housing; 2. a mounting groove; 3. a first gear; 4. a second gear; 5. a chain; 6. a first mounting hole; 7. a ratchet wheel; 8. a pawl; 9. a spring plate; 10. a first clamping groove; 11. a second clamping groove; 12. a bearing; 13. a first square bar; 14. a rocker arm; 15. a grip; 16. a second square bar; 17. a sleeve body; 18. sleeving the mouth; 19. chain grooves.

Description of the embodiments

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

As shown in fig. 1-2, the embodiment of the application provides a device for fastening a bolt in a limited space, which comprises a housing 1, the housing 1 is in a long strip shape, a mounting groove 2 is formed in the housing 1, two ends of the mounting groove 2 are respectively provided with a first gear 3 and a second gear 4, a chain 5 is sleeved between the first gear 3 and the second gear 4, a first mounting hole 6 is formed in the first gear 3, a ratchet wheel 7 is arranged in the first mounting hole 6, a pawl 8 and a spring plate 9 are arranged on the first gear 3, the spring plate 9 can drive the pawl 8 to be meshed with the ratchet wheel 7, a first through clamping groove 10 is formed in the center of the ratchet wheel 7, a second through clamping groove 11 is formed in the center of the second gear 4, a rocker is detachably mounted on the first clamping groove 10, a bolt sleeve is detachably mounted on the second clamping groove 11, and the bolt sleeve can be sleeved on a screw rod.

Specifically, various mounting components are arranged on a mounting groove 2 in a shell 1 and used for mounting various parts, a first gear 3 and a second gear 4 are respectively mounted at two ends of the mounting groove 2, the first gear 3 is a driving gear, the second gear 4 is a driven gear, the section of the second gear 4 stretches into a deep and narrow limited space, the section of the first gear 3 is a manual operation end, and the first gear 3 and the second gear 4 are driven through a chain 5. The center part of the first gear 3 is provided with a first mounting hole 6, a ratchet 7 is arranged in the first mounting hole 6, a bearing 12 is arranged between the ratchet 7 and the first mounting hole 6, the ratchet 7 is connected with the first mounting hole 6 on the first gear 3 through the bearing 12, the bearing 12 is sleeved on the middle part of the ratchet 7, the pawls 8 and the elastic sheets 9 are arranged in four mode, the two sides of the first gear 3 are respectively arranged, the four pawls 8 and the elastic sheets 9 are respectively symmetrical in pairs, the rotation axes of the bearing 12 and the first gear 3 are respectively symmetrical, and thus the ratchet 7, the pawls 8 and the first gear 3 are enabled to accept balance, the smoothness of screwing gears is improved, and the gears are not easy to clamp.

In this embodiment, first draw-in groove 10 is square mouth, and the rocker includes first square pole 13, rocking arm 14 and grabs handle 15, and first square pole 13 and first draw-in groove 10 looks adaptation, the one end and the first square pole 13 fixed connection of rocking arm 14, the other end and the grab handle 15 fixed connection of rocking arm 14.

Specifically, the first clamping groove 10 is arranged at the center of the ratchet 7, the first clamping groove 10 is a common square opening, the first clamping groove 10 of the square opening is used together with common accessories such as a common torque wrench, and a square rod on the rocker can be clamped with the first clamping groove 10, so that torque is transmitted; the rocker arm 14 acts as an extension arm to relieve the force that needs to be applied; the grab handle 15 is arranged at the other end of the rocker arm 14, so as to facilitate the grabbing and the use of staff.

In this embodiment, second draw-in groove 11 is square mouth, and the bolt housing includes square pole 16 of second and cover body 17, and square pole 16 of second and the looks adaptation of second draw-in groove 11, the one end and the square pole 16 fixed connection of second of cover body 17, the other end of cover body 17 are equipped with the socket 18 of inwards extending, socket 18 and bolt looks adaptation.

Specifically, the second clamping groove 11 is arranged at the center of the second gear 4, the second clamping groove 11 is a common square opening, the second clamping groove 11 of the square opening is used for being clamped with the second square rod 16 so as to transmit torque, the bolt sleeve is a series of sleeves of different specifications and different shapes, the bolt sleeve is generally divided into the second square rod 16 and the sleeve body 17, the second square rod 16 is used for being clamped with the second clamping groove 11, the sleeve body 17 is provided with a sleeve opening 18 matched with the bolt, the sleeve opening 18 is sleeved on the bolt, the bolt can be screwed, the sleeve opening 18 is generally a common hexagon so as to be matched with the common hexagon bolt, but the sleeve opening 18 of other shapes can also be used for being matched with bolts of other shapes.

In this embodiment, a chain groove 19 is provided in the mounting groove 2 between the first gear 3 and the second gear 4, and the chain 5 can pass through the chain groove 19.

Specifically, two baffles are disposed on the mounting groove 2 to form a chain groove 19, the chain 5 can pass through the chain groove 19, the chain groove 19 is mainly used for regulating the mounting groove 2 to divide different functional areas, and the middle part of the mounting groove 2 is used for fixing the bolt position of the shell 1. Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description.

Claims (8)

1. The utility model provides a device for carrying out bolt-up in restricted space, its characterized in that, includes the casing, the casing is rectangular form, be equipped with the mounting groove in the casing, the both ends of mounting groove are equipped with first gear and second gear respectively, first gear with the chain has been cup jointed between the second gear, be equipped with first mounting hole on the first gear, be equipped with the ratchet in the first mounting hole, be equipped with pawl and shell fragment on the first gear, the shell fragment can order about the pawl with ratchet meshing, the center of ratchet is equipped with the first draw-in groove that link up, the center of second gear is equipped with the second draw-in groove that link up, detachable installs the rocker on the first draw-in groove, detachable installs the bolt housing on the second draw-in groove, the bolt housing can overlap on the screw rod.

2. The apparatus for bolt-up in a confined space of claim 1 wherein the ratchet is coupled to a first mounting hole in the first gear by a bearing.

3. The device for fastening bolts in a limited space according to claim 2, wherein the pawl and the elastic piece are symmetrically arranged on the first gear on both sides of the bearing.

4. The device for fastening bolts in a limited space according to claim 2, wherein the pawl and the elastic piece are symmetrically disposed on the same side of the first gear.

5. The device for fastening bolts in a limited space according to claim 1, wherein the first clamping groove is a square opening, the rocker comprises a first square rod, a rocker arm and a grip, the first square rod is matched with the first clamping groove, one end of the rocker arm is fixedly connected with the first square rod, and the other end of the rocker arm is fixedly connected with the grip.

6. The device for fastening bolts in a limited space according to claim 1, wherein the second clamping groove is a square opening, the bolt sleeve comprises a second square rod and a sleeve body, the second square rod is matched with the second clamping groove, one end of the sleeve body is fixedly connected with the second square rod, the other end of the sleeve body is provided with an inwardly extending sleeve opening, and the sleeve opening is matched with the bolt.

7. The device for bolt-fastening in a confined space of claim 6 wherein said socket has a hexagonal cross-section.

8. The device for fastening bolts in a limited space according to claim 1, wherein a chain groove is provided in a mounting groove between the first gear and the second gear, and the chain can pass through the chain groove.

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