CN217648331U - Expansion bolt sleeve for electric hammer - Google Patents

Abstract

The utility model belongs to the technical field of building foundation pit supporting construction, in particular to an expansion bolt sleeve for an electric hammer, which comprises a sleeve body and an installation handle rod, wherein the head end of the sleeve body is provided with a protective groove with a regular hexagonal structure for embedding a regular hexagonal nut, and the inner bottom surface of the protective groove is provided with an avoidance groove for embedding the end part of an expansion bolt; the mounting handle rod is detachably mounted at the tail end of the sleeve body and is used for connecting an electric hammer; the expansion bolt sleeve of the utility model is used for matching with the hammering and rotating functions of the electric hammer to install the expansion bolt on the inner wall of the foundation pit so as to realize the installation of the steel support of the foundation pit; the sleeve body is connected for detachable with the installation handle pole, can change sleeve body and installation handle pole at will according to electric hammer and expansion bolts's difference, has improved the adaptability of device, has reduced the processing cost, satisfies different user demands, guarantees that the device reliably is applicable to different electric hammer and expansion bolts.

Description

Expansion bolt sleeve for electric hammer

Technical Field

The utility model belongs to the technical field of the construction of building excavation supporting, concretely relates to expansion bolts sleeve for electric hammer.

Background

The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site before excavation, and waterproof and drainage work is performed; the persons who do not dig deeply can use the method of putting the side slope to stabilize the soil slope, the size of the slope is determined according to the relevant construction regulations; when a deeper foundation pit and a building adjacent to the deeper foundation pit are excavated, a foundation pit wall supporting method, a concrete-sprayed wall protecting method and a large foundation pit are used, and even an underground continuous wall and a columnar column type bored pile are used for interlocking, so that an outer soil layer is prevented from collapsing; if no influence is caused to nearby buildings, the underground water level can be reduced by a well point method, and slope-releasing open cut is adopted; in cold regions, natural cold freezing method can be adopted for excavation and the like.

The foundation pit is very common in building engineering, bridge construction engineering and subway construction engineering, and especially the foundation pit excavated in subway construction is usually deep, so the steel support must be well supported.

To the foundation ditch construction steel shotcrete and strut, need use the inflation screw of large model, traditional mode is utilizing the electric hammer cooperation suitable drill bit to punch on the concrete earlier, put the inflation screw into downthehole, then use the sledgehammer to hammer repeatedly to the design depth, tighten whole inflation screw with the spanner at last, in addition, when the construction, and the spiral shell tooth of protection inflation screw is not destroyed, can be at two nuts of the reverse screw in of tip at the inflation screw, the sledgehammer directly strikes and makes the inflation screw reach the design depth on the nut at rear, the mode of artifical sledgehammer all is higher to constructor's physical power and the requirement of experience, and there is very big potential safety hazard when high altitude construction.

In order to avoid the problems, the mode that is often adopted at present is realized by utilizing a sleeve matched with a nut, the sleeve fully utilizes the hammering and rotating functions of the electric hammer, the sleeve is installed at the head hammering expansion screw of the electric hammer through an installation handle rod of the end part so as to reach the design depth, then the sleeve is driven by the electric hammer to rotate so as to lock the nut at the end part of the expansion screw, but the traditional sleeve and the installation handle rod are of an integrated structure, the specifications of the expansion screw to be installed are different due to different models of the electric hammer, the adaptability of the traditional device is insufficient, and different use requirements are difficult to meet.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides an expansion bolt sleeve for electric hammer, which has the characteristics of convenient use and wide application range.

In order to achieve the above object, the utility model provides a following technical scheme: an expansion bolt sleeve for an electric hammer comprises a sleeve body and an installation handle rod, wherein a protective groove with a regular hexagonal structure is formed in the head end of the sleeve body and used for embedding a regular hexagonal nut, and an avoiding groove is formed in the inner bottom surface of the protective groove and used for embedding the end part of an expansion bolt; the mounting handle rod is detachably mounted at the tail end of the sleeve body and used for being connected with an electric hammer.

As a preferred technical solution of the present invention, the tail end of the sleeve body has a connection section; an operation cavity is formed in the end face of the installation handle rod, connecting columns distributed along the axial direction of the operation cavity are fixed in the operation cavity, a plurality of turnover rods distributed at equal intervals along the circumferential direction are installed on the connecting columns, and locking blocks are fixed at the end parts of the turnover rods; the terminal surface of linkage segment is seted up the confession the spread groove of upset pole embedding, just the inner wall of spread groove is seted up the confession the locking groove of locking piece embedding is used for realizing the installation handle pole with the connection locking of linkage segment.

As a preferred technical scheme of the utility model, still include movable sleeve and connection quarter butt, the upset pole articulates on the spliced pole, movable sleeve cover is established on the spliced pole, just connect the quarter butt one end with movable sleeve is articulated, the other end with the upset pole is articulated.

As a preferred technical scheme of the utility model, still include reset spring the telescopic inner wall of activity is fixed with a spacing ring the outer wall of spliced pole is fixed with No. two spacing rings, the reset spring cover is established just be in on the spliced pole a spacing ring with between No. two spacing rings.

As a preferred technical scheme of the utility model, still include and press the depression bar seted up the confession on the installation handle pole press the through-hole that the depression bar runs through, just press the depression bar to run through and imbed the operation intracavity behind the through-hole the movable sleeve's outer wall is fixed with the drive block, just the top surface of drive block is an inclined plane, press the embedding end terminal surface of depression bar be with No. two inclined planes of an inclined plane matched with.

Compared with the prior art, the beneficial effects of the utility model are that: the expansion bolt sleeve of the utility model is used for matching with the hammering and rotating functions of the electric hammer to install the expansion bolt on the inner wall of the foundation pit so as to realize the installation of the steel support of the foundation pit; the sleeve body is connected with the installation handle rod in a separable mode, the sleeve body and the installation handle rod can be replaced at will according to the difference of the electric hammer and the expansion bolt, the adaptability of the device is improved, the processing cost is reduced, different use requirements are met, and the device is guaranteed to be reliably suitable for different electric hammers and expansion bolts.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the side-axis structure of the present invention;

FIG. 3 is a schematic side sectional view of the mounting stem of the present invention;

in the figure: 1. a sleeve body; 2. installing a handle rod; 3. a protective bath; 4. an avoidance groove; 5. a connecting section; 51. connecting grooves; 52. a locking groove; 6. an operating chamber; 7. connecting columns; 8. a movable sleeve; 9. a drive block; 10. a first limit ring; 11. a second limiting ring; 12. a return spring; 13. a through hole; 14. a pressing lever; 15. a first inclined plane; 16. a second inclined plane; 17. a turning rod; 18. a locking block; 19. and connecting the short rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: an expansion bolt sleeve for an electric hammer comprises a sleeve body 1 and an installation handle rod 2, wherein a protective groove 3 with a regular hexagonal structure is formed in the head end of the sleeve body 1 and used for embedding a regular hexagonal nut, and an avoidance groove 4 is formed in the inner bottom surface of the protective groove 3 and used for embedding the end part of an expansion bolt; the installation handle rod 2 is detachably installed at the tail end of the sleeve body 1 and used for being connected with an electric hammer, the working principle of the electric hammer and the working mode of hammering and rotating are the disclosed technologies, and details are omitted, when a steel support is installed in a foundation pit, the preorder work is consistent with the traditional mode, namely when the electric hammer is used, a proper drill bit is installed by the electric hammer, a hole is drilled at a specified position of the inner wall of the foundation pit, an expansion screw is placed in the hole, a regular hexagon nut is screwed in the head end of the expansion screw to protect the thread of the expansion screw, the hammering function of the electric hammer is used firstly, the sleeve body 1 is installed on the electric hammer through the installation handle rod 2, then the sleeve body 1 is sleeved on the regular hexagon nut at the head end of the expansion screw, the electric hammer is started, the electric hammer blows the expansion screw continuously through the installation handle rod 2 and the sleeve body 1 until the expansion screw is fed to the designed depth, the head end of the protection groove 3 is matched with the shape of the expansion screw, the nut is used for stabilizing the position of the nut, and avoiding the problem that the nut is loosened due to the vibration when the hammering; what later use is the rotation function of electric hammer, the electric hammer utilizes installation handle pole 2 and the positive hexagon nut of 1 drive of sleeve body to rotate, until locking expansion screw, when locking positive hexagon nut, certain length can be stretched out to expansion screw's head end, the length that expansion screw stretches out can imbed and dodge in the groove 4, the reliability and the security of device operation have been guaranteed, the inner wall of avoiding expansion screw's tip contact sleeve body 1 causes wearing and tearing and makes the inconvenient problem of later stage dismantlement positive hexagon nut.

It should be noted that, the utility model discloses a guard groove 3 is regular hexagonal structure, is based on that most inflation screw lock nut designs for regular hexagon to it can only be regular hexagonal structure not to represent guard groove 3, and it can correspond the design according to the structural morphology of the inflation screw lock nut that uses, and the inflation screw lock nut who uses is the pentagon for example, so guard groove 3 also designs into the pentagon.

Specifically, according to fig. 1, fig. 2 and fig. 3, in the present embodiment, the sleeve body 1 has a connecting section 5 at the tail end; an operation cavity 6 is formed in the end face of the installation handle rod 2, connecting columns 7 distributed along the axial direction of the operation cavity 6 are fixed in the operation cavity 6, a plurality of turnover rods 17 distributed at equal intervals along the circumferential direction are installed on the connecting columns 7, and locking blocks 18 are fixed at the end parts of the turnover rods 17; the end face of the connecting section 5 is provided with a connecting groove 51 for embedding the turning rod 17, and the inner wall of the connecting groove 51 is provided with a locking groove 52 for embedding the locking block 18 for realizing the connection and locking of the installation handle rod 2 and the connecting section 5, the utility model also comprises a movable sleeve 8 and a connecting short rod 19, the turning rod 17 is hinged on the connecting column 7, the movable sleeve 8 is sleeved on the connecting column 7, one end of the connecting short rod 19 is hinged with the movable sleeve 8, and the other end is hinged with the turning rod 17; the utility model also comprises a return spring 12, a first spacing ring 10 is fixed on the inner wall of the movable sleeve 8, a second spacing ring 11 is fixed on the outer wall of the connecting post 7, and the return spring 12 is sleeved on the connecting post 7 and is positioned between the first spacing ring 10 and the second spacing ring 11; the utility model discloses still include the press lever 14, set up the through-hole 13 that supplies the press lever 14 to run through on the installation handle pole 2, and in the embedding operation chamber 6 behind the press lever 14 run through-hole 13, be fixed with the drive block 9 at the outer wall of activity sleeve 8, and the top surface of drive block 9 is No. one inclined plane 15, the embedding end terminal surface of press lever 14 is No. two inclined planes 16 with No. one inclined plane 15 matched with, the utility model discloses a sleeve body 1 and installation handle pole 2 are detachable design, can change sleeve body 1 and installation handle pole 2 at will according to the difference of electric hammer and expansion bolt, have improved the adaptability of device, have reduced the processing cost, have satisfied different user demands, guarantee that the device is reliably applicable to different electric hammers and expansion bolts; when the sleeve body 1 and the mounting handle rod 2 are combined, the pressing rod 14 is pressed down, the pressing rod 14 moves downwards, under the matching of the first inclined surface 15 and the second inclined surface 16, component force moving towards the front side is generated on the driving block 9, the driving block 9 drives the movable sleeve 8 to move forwards, the return spring 12 is compressed, at the moment, the movable sleeve 8 also drives the connecting short rod 19 to turn and move, the turning rod 17 turns towards the inner side, then the turning rod 17 is inserted into the connecting groove 51, the pressing rod 14 is released, the return spring 12 releases elastic force to enable the movable sleeve 8 to move backwards and return, the movable sleeve 8 pulls the turning rod 17 to turn towards the outer side through the connecting short rod 19, the locking block 18 is embedded into the locking groove 52 to achieve connection and locking of the mounting handle rod 2 and the connecting section 5, and if the locking block 18 and the locking groove 52 are misaligned, the sleeve body 1 or the mounting handle 2 can be rotated properly for a certain angle, and the locking block 18 and the locking groove 52 are corresponding; when the sleeve body 1 and the installation handle rod 2 need to be disassembled, the pressing rod 14 is pressed down, the pressing rod 14 moves downwards, the driving block 9 drives the movable sleeve 8 to move forwards and simultaneously drives the connection short rod 19 to turn and move, the turning rod 17 turns towards the inner side, and the sleeve body 1 and the installation handle rod 2 can be separated after the locking block 18 is separated from the locking groove 52, so that the disassembly and assembly of the sleeve body is very convenient.

The utility model discloses a theory of operation and use flow: the utility model discloses an expansion bolts sleeve for electric hammer, when using, utilize the electric hammer to install suitable drill bit earlier, bore hole in foundation ditch inner wall's regulation position department, put into the inflation screw downthehole, screw in the thread of positive hexagon nut in order to protect the inflation screw at the head end of inflation screw, what used earlier is the hammering function of electric hammer, install device sleeve body 1 on the electric hammer through installation handle pole 2, later with sleeve body 1 cover on the positive hexagon nut of inflation screw head end, start the electric hammer, the electric hammer constantly hammers the inflation screw through installation handle pole 2 and sleeve body 1, until sending the inflation screw to the design depth, the nut of shape adaptation inflation screw head end of guard slot 3, be used for stabilizing the position of nut, avoid the vibrations when hammering the nut to cause the nut not hard up problem;

then, the electric hammer uses the rotation function of the electric hammer, the electric hammer drives the regular hexagon nut to rotate by utilizing the mounting handle rod 2 and the sleeve body 1 until the expansion screw is locked, when the regular hexagon nut is locked, the head end of the expansion screw extends out by a certain length, and the extended length of the expansion screw is embedded into the avoiding groove 4, so that the reliability and the safety of the operation of the device are ensured, and the problem that the regular hexagon nut is inconvenient to disassemble at the later stage due to the fact that the end part of the expansion screw is in contact with the inner wall of the sleeve body 1 to cause abrasion is avoided;

the utility model discloses a sleeve body 1 and installation handle pole 2 are the detachable design, can change sleeve body 1 and installation handle pole 2 at will according to electric hammer and expansion bolts's difference, have improved the adaptability of device, have reduced the processing cost, satisfy different user demands, guarantee that the device reliably is applicable to different electric hammer and expansion bolts.

In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "disposed," "provided," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be connected through an intermediate medium.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides an expansion bolts sleeve for electric hammer, includes sleeve body (1) and installation handle pole (2), its characterized in that: the head end of the sleeve body (1) is provided with a protective groove (3) with a regular hexagonal structure for embedding a regular hexagonal nut, and the inner bottom surface of the protective groove (3) is provided with an avoidance groove (4) for embedding the end part of an expansion bolt; the mounting handle rod (2) is detachably mounted at the tail end of the sleeve body (1) and is used for being connected with an electric hammer.

2. The expansion bolt bushing for electric hammer according to claim 1, wherein: the tail end of the sleeve body (1) is provided with a connecting section (5); an operation cavity (6) is formed in the end face of the installation handle rod (2), connecting columns (7) distributed along the axial direction of the operation cavity are fixed in the operation cavity (6), a plurality of turnover rods (17) distributed at equal intervals along the circumferential direction are installed on the connecting columns (7), and locking blocks (18) are fixed at the end parts of the turnover rods (17); the terminal surface of linkage segment (5) is seted up the confession connecting groove (51) of upset pole (17) embedding, and the inner wall of connecting groove (51) is seted up the confession locking groove (52) of locking piece (18) embedding are used for realizing installation handle pole (2) with the connection locking of linkage segment (5).

3. An expansion bolt bushing for electric hammer according to claim 2, wherein: still including activity sleeve (8) and connection quarter butt (19), upset pole (17) articulate on spliced pole (7), activity sleeve (8) cover is established on spliced pole (7), just connect quarter butt (19) one end with activity sleeve (8) are articulated, the other end with upset pole (17) are articulated.

4. An expansion bolt bushing for electric hammer according to claim 3, wherein: still include reset spring (12) the inner wall of activity sleeve (8) is fixed with spacing ring (10) the outer wall of spliced pole (7) is fixed with No. two spacing rings (11), reset spring (12) cover is established on spliced pole (7) and be in spacing ring (10) with No. two between spacing ring (11).

5. An expansion bolt bushing for electric hammer according to claim 4, wherein: still including pressing down the feed rod (14) seted up the confession on installation handle pole (2) press down through-hole (13) that feed rod (14) run through, just press down in feed rod (14) run through-hole (13) back embedding operation chamber (6) the outer wall of movable sleeve (8) is fixed with drive block (9), just the top surface of drive block (9) is inclined plane (15) No. one, press down the embedding end terminal surface of feed rod (14) be with inclined plane (15) matched with inclined plane (16) No. two.

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