Multi-sleeve extension rod combination tool

Abstract

The utility model discloses a multi-sleeve extension rod combination tool which comprises an extension rod body and a plurality of sleeves, and the extension rod body is a straight rod with a regular hexagonal section; steel balls are movably installed on the side walls of the rear portion and the front portion of the middle of the connecting rod body, two first steel balls arranged front and back are movably installed on the side wall of the front portion of the connecting rod body, and a limiting steel ball is fixedly installed on the side wall, behind the rearmost first steel ball, of the connecting rod body. A plurality of sleeves can be mounted on the extension rod body, so that the extension rod is convenient to carry, the application range of the extension rod is widened, and the use effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener tool equipment technical field more particularly to a kind of multi-sleeve connecting rod combination tools. BACKGROUND

[0002] The existing sleeve spanner tool, generally including driving handle, connecting rod and multiple sleeves, it is generally placed directly into tool box, when using, connecting rod needs to be inserted into driving handle to be connected, then, sleeve is accessed into the end of connecting rod, realizes connection;

[0003] It needs entire tool box to carry, and tool box is large in size, it is inconvenient to carry, and if driving handle, connecting rod and sleeve are connected to carry, at this time, only single sleeve can be carried, the scope of application is small, and use is not ideal. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the insufficient of prior art, provide a kind of multi-sleeve connecting rod combination tools, it can install multiple sleeves on connecting rod body, so that it is convenient to carry, improve its scope of application, and use effect is good.

[0005] The utility model solves the technical problem of the scheme:

[0006] A kind of multi-sleeve connecting rod combination tools, including connecting rod body and multiple sleeves, the connecting rod body is straight rod with the section being regular hexagon;

[0007] The side wall of the rear of the middle part of the connecting rod body and the side wall of the front of the middle part are movably installed with steel ball, the side wall of the front of the connecting rod body is movably installed with two first steel balls arranged in front and back, and the side wall of the connecting rod body at the rear of the last first steel ball is fixedly installed with limit steel ball;

[0008] The connecting rod body is inserted with multiple sleeves, both ends of each sleeve are formed with regular quadrangular prism insertion hole, the middle part through hole of sleeve is regular hexagonal middle part through hole, the connecting rod body is inserted in the middle part through hole, and the connecting rod body is matched with the middle part through hole, the inner side wall of the side wall of the connecting rod body near the middle part through hole;

[0009] The regular quadrangular prism insertion hole of the both ends of the corresponding sleeve is communicated with the regular quadrangular prism insertion hole of the both ends of the corresponding sleeve, the middle part inner side wall of the middle part through hole is formed with positioning groove, and the steel ball is clamped in the positioning groove of the corresponding sleeve inserted in the middle part of the connecting rod body.

[0010] The side wall at the middle part of the front end of the connecting rod body is formed with two front and rear arranged mounting grooves, a first buffer spring and a first steel ball are inserted into the corresponding mounting grooves, the inner end of the first buffer spring is pressed against the inner end face of the corresponding mounting groove, and the outer end of the first buffer spring is pressed against the inner end of the first steel ball.

[0011] The side wall at the middle part of the front end of the connecting rod body is formed with two front and rear arranged mounting grooves, a first buffer spring and a first steel ball are inserted into the corresponding mounting grooves, the inner end of the first buffer spring is pressed against the inner end face of the corresponding mounting groove, and the outer end of the first buffer spring is pressed against the inner end of the first steel ball.

[0012] The side wall at the middle part of the front end of the connecting rod body is formed with two front and rear arranged mounting grooves, a first buffer spring and a first steel ball are inserted into the corresponding mounting grooves, the inner end of the first buffer spring is pressed against the inner end face of the corresponding mounting groove, and the outer end of the first buffer spring is pressed against the inner end of the first steel ball.

[0013] The side wall at the middle part of the front end of the connecting rod body is formed with two front and rear arranged mounting grooves, a first buffer spring and a first steel ball are inserted into the corresponding mounting grooves, the inner end of the first buffer spring is pressed against the inner end face of the corresponding mounting groove, and the outer end of the first buffer spring is pressed against the inner end of the first steel ball.

[0014] The side wall at the middle part of the front end of the connecting rod body is formed with two front and rear arranged mounting grooves, a first buffer spring and a first steel ball are inserted into the corresponding mounting grooves, the inner end of the first buffer spring is pressed against the inner end face of the corresponding mounting groove, and the outer end of the first buffer spring is pressed against the inner end of the first steel ball.

[0015] The side wall at the middle part of the front end of the connecting rod body is formed with two front and rear arranged mounting grooves, a first buffer spring and a first steel ball are inserted into the corresponding mounting grooves, the inner end of the first buffer spring is pressed against the inner end face of the corresponding mounting groove, and the outer end of the first buffer spring is pressed against the inner end of the first steel ball.

[0016] The side wall at the middle part of the front end of the connecting rod body is formed with two front and rear arranged mounting grooves, a first buffer spring and a first steel ball are inserted into the corresponding mounting grooves, the inner end of the first buffer spring is pressed against the inner end face of the corresponding mounting groove, and the outer end of the first buffer spring is pressed against the inner end of the first steel ball.

[0017] Compared with the prior art, it can install multiple sleeves on the connecting rod body, so that it is convenient to carry, improves the application range, and has good use effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a partial structure schematic view of the combination of the utility model;

[0019] Figure 2 is a partial structure schematic view of the connecting rod body of the utility model;

[0020] Figure 3 isFigure 2 A magnified view of a portion of the image;

[0021] Figure 4 yes Figure 2 A magnified view of another part;

[0022] Figure 5 This is a partial structural diagram of the front sleeve;

[0023] Figure 6 It is a partial sectional view of a sleeve in the middle;

[0024] Figure 7 This is a partial structural diagram of another sleeve in the middle section;

[0025] Figure 8 This is an end view of one of the end faces of the front sleeve. Detailed implementation method:

[0026] For example, see below. Figures 1 to 8 As shown, a multi-sleeve extension tool includes an extension body 10 and multiple sleeves 20. In this embodiment, there are three sleeves 20. The extension body 10 is a straight rod with a regular hexagonal cross-section.

[0027] Steel balls 11 are movably installed on the side walls at the rear and front of the middle part of the connecting rod body 10. Two first steel balls 12 arranged in a front-back pattern are movably installed on the side wall at the front part of the connecting rod body 10. A limiting steel ball 13 is fixedly installed on the side wall of the connecting rod body 10 at the rear of the last first steel ball 12.

[0028] Multiple sleeves 20 are inserted into the middle of the connecting rod body 10. Each sleeve 20 has a regular square prism insertion hole 21 formed at both ends. The middle through hole of the sleeve 20 is a regular hexagonal prism middle through hole 22. The connecting rod body 10 is inserted into the middle through hole 22 and it cooperates with the middle through hole 22. The outer side wall of the connecting rod body 10 is close to the inner side wall of the corresponding side wall of the middle through hole 22.

[0029] The central through hole 22 communicates with the square prism insertion holes 21 at both ends of the corresponding sleeve 20. A positioning groove 23 is formed on the inner side wall of the central through hole 22. The steel ball 11 is inserted into the positioning groove 23 of the corresponding sleeve 20 at the middle of the connecting rod body 10.

[0030] Furthermore, the positioning groove 23 is an arc-shaped groove, an annular groove, or a positioning recess formed on the inner side wall of the central through hole 22. In the attached drawings of this embodiment, the positioning groove 23 is an annular groove.

[0031] Further, the side wall of the middle part of the connecting rod body 10 is formed with a mounting groove, the buffer spring 1 and the steel ball 11 are inserted into the corresponding mounting groove, the inner end of the buffer spring 1 is pressed against the inner end face of the corresponding mounting groove, the outer end is pressed against the inner end of the steel ball 11, the outer end of the steel ball 11 extends out of the corresponding side wall of the connecting rod body 10, the outer end inner side wall of the mounting groove is formed with an extension ring extending to the middle part, the inner diameter of the extension ring is smaller than the diameter of the steel ball 11.

[0032] The side wall of the front part of the connecting rod body 10 is formed with two front and rear arranged mounting grooves, the first buffer spring 2 and the first steel ball 12 are inserted into the corresponding mounting groove, the inner end of the first buffer spring 2 is pressed against the inner end face of the corresponding mounting groove, the outer end is pressed against the inner end of the first steel ball 12, the outer end of the first steel ball 12 extends out of the corresponding side wall of the connecting rod body 10, the outer end inner side wall of the mounting groove is formed with an extension ring extending to the middle part, the inner diameter of the extension ring is smaller than the diameter of the first steel ball 12.

[0033] The side wall of the connecting rod body 10 at the rear of the last rear first steel ball 12 is formed with a recess hole, the limiting steel ball 13 is embedded in the recess hole, the outer end of the limiting steel ball 13 extends out of the side wall of the connecting rod body 10, the inner end face is pressed against the inner end face of the recess hole, the middle outer side wall of the limiting steel ball 13 is pressed against the inner side wall of the recess hole, the outer end inner side wall of the recess hole is formed with an annular extension, the inner side wall of the annular extension is pressed against the outer side wall at the middle outer side of the limiting steel ball 13, the inner side wall at the outer end of the annular extension is smaller than the diameter of the limiting steel ball 13.

[0034] Further, the outer side wall at the rear end of the connecting rod body 10 is formed with a driving handle locking annular groove 14. The rear end of the connecting rod body 10 can be inserted into the connecting end of the driving handle, and the locking part of the driving handle is inserted into the driving handle locking annular groove 14 to achieve positioning. The driving handle is a conventional component, which is not described in detail here and is not shown in the drawings.

[0035] Further, the middle part of the front end of the connecting rod body 10 is formed with a clamping groove, the magnetic steel block 15 is clamped in the clamping groove, the front end of the magnetic steel block 15 extends out of the front end face of the clamping groove. The magnetic steel block 15 can also be adhered and fixed in the clamping groove by applying adhesive on the inner side wall and the inner end face of the clamping groove.

[0036] Further, the positioning groove 23 of the sleeve 20 inserted into the front end of the connecting rod body 10 is clamped with the corresponding first steel ball 12, and the limiting steel ball 13 is pressed against the front end face of the right square prism plug-in hole 21 at the rear end of the middle part through hole 22 of the corresponding sleeve 20.

[0037] The sizes of the two end square prism insertion holes 21 of the two middle sleeves 20 are different, the front end of the frontmost sleeve 20 is formed with a hexagonal prism insertion hole 25 which extends to and is aligned with the middle through hole 22 of the frontmost sleeve 20; the rear end of the frontmost sleeve 20 is formed with a square prism insertion hole 21 which is in communication with the middle through hole 22 of the frontmost sleeve 20;

[0038] The hexagonal prism insertion hole 25 is close to the outer side wall of the connecting rod body 10, the front end of the left and right corresponding inner side walls of the hexagonal prism insertion hole 25 is formed with a rearward extending vertical guide groove 26, the rear end of the vertical guide groove 26 extends to the front end of the middle through hole 22, and the limiting steel ball 13 is matched with the corresponding vertical guide groove 26.

[0039] In the drawings of the embodiment, the size of the square prism insertion hole 21 of the front sleeve 20 is smaller than that of the rear sleeve 20, and the size of the sleeve 20 at the front end of the connecting rod body 10 is the smallest.

[0040] As shown in the drawings of the embodiment, when the two middle sleeves 20 are installed in the connecting rod body 10, the connecting rod body 10 is inserted into the middle through holes 22 of the two sleeves 20, and the steel ball 11 is clamped in the corresponding positioning groove 23 to achieve fixation.

[0041] The smallest sleeve 20 is installed in the front part of the connecting rod body 10, one of the first steel balls 12 is clamped in the positioning groove 23 of the smallest sleeve 20, and at the same time, the limiting steel ball 13 abuts against the front end face of the square prism insertion hole 21 at the rear end of the smallest sleeve 20 to achieve limitation, so that the smallest sleeve 20 cannot move backward during rotation.

[0042] At this time, the front end of the smallest sleeve 20 is a hexagonal prism insertion hole 25 which can be inserted into a chuck (such as a cross-shaped chuck or a straight-shaped chuck) for operation, and the magnetic steel block 15 can be used to fix the chuck to prevent it from falling out.

[0043] When the smallest sleeve 20 needs to be changed to the other direction and the square prism insertion hole 21 is needed during use, the smallest sleeve 20 can be changed to the other direction, then the hexagonal prism insertion hole 25 is inserted into the front end of the connecting rod body 10, the limiting steel ball 13 of the protruding side wall portion moves along the corresponding vertical guide groove 26 until one of the first steel balls 12 is clamped in the positioning groove 23 of the smallest sleeve 20 to achieve connection, at this time, the limiting steel ball 13 of the protruding side wall portion abuts against or is close to the inner end of the vertical guide groove 26, so that it can be used, and the limiting steel ball 13 can prevent the smallest sleeve 20 from moving backward during use.

[0044] Similarly, when other sleeves 20 need to be replaced, only the front end of the sleeve 20 needs to be disassembled, and the sleeve 20 to be used needs to be replaced, which is very convenient to use.

[0045] In this embodiment, when carrying, three sleeves 20 can be installed as shown in the drawings, and the rear end is connected to the driving handle, which can be taken and carried as a whole, and is convenient to carry.

[0046] Moreover, it has three sleeves 20 of different sizes, so that its use range is wide.

[0047] Finally, the above embodiments are only used to illustrate the present application, and are not limited to the present application. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, all equivalent technical solutions also belong to the scope of the present application, and the patent protection scope of the present application should be defined by the claims.

Claims

1. A multi-sleeve extension tool, comprising an extension body (10) and multiple sleeves (20), characterized in that: The connecting rod body (10) is a straight rod with a regular hexagonal cross-section; Steel balls (11) are movably installed on the side walls at the rear and front of the middle part of the connecting rod body (10). Two first steel balls (12) arranged in a front-back pattern are movably installed on the side wall at the front part of the connecting rod body (10). A limiting steel ball (13) is fixedly installed on the side wall of the connecting rod body (10) behind the last first steel ball (12). The middle part of the connecting rod body (10) is fitted with multiple sleeves (20), and each sleeve (20) has a regular square prism insertion hole (21) formed at both ends. The middle through hole of the sleeve (20) is a regular hexagonal prism middle through hole (22). The connecting rod body (10) is inserted into the middle through hole (22) and it cooperates with the middle through hole (22). The outer side wall of the connecting rod body (10) is close to the inner side wall of the corresponding side wall of the middle through hole (22). The central through hole (22) is connected to the square prism insertion holes (21) at both ends of the corresponding sleeve (20). A positioning groove (23) is formed on the inner side wall of the central through hole (22). The steel ball (11) is inserted into the positioning groove (23) of the corresponding sleeve (20) at the middle of the connecting rod body (10).

2. The multi-sleeve connecting rod combination tool according to claim 1, characterized in that: The positioning groove (23) is an arc-shaped groove, an annular groove, or a positioning recess formed on the inner side wall of the central through hole (22).

3. The multi-sleeve connecting rod combination tool according to claim 1, characterized in that: Mounting grooves are formed on the side walls at the rear and front of the middle part of the connecting rod body (10). The buffer spring (1) and the steel ball (11) are inserted into the corresponding mounting grooves. The inner end of the buffer spring (1) presses against the inner end face of the corresponding mounting groove, and the outer end presses against the inner end of the steel ball (11). The outer end of the steel ball (11) extends out of the corresponding side wall of the connecting rod body (10). An extension ring extending towards the middle is formed on the inner side wall of the outer end of the mounting groove. The inner diameter of the extension ring is smaller than the diameter of the steel ball (11).

4. The multi-sleeve connecting rod combination tool according to claim 1, characterized in that: Two mounting grooves arranged in a front-to-back pattern are formed on the side wall of the front part of the connecting rod body (10). The first buffer spring (2) and the first steel ball (12) are inserted into the corresponding mounting grooves. The inner end of the first buffer spring (2) presses against the inner end face of the corresponding mounting groove, and the outer end presses against the inner end of the first steel ball (12). The outer end of the first steel ball (12) extends out of the corresponding side wall of the connecting rod body (10). An extension ring extending towards the center is formed on the inner side wall of the outer end of the mounting groove. The inner diameter of the extension ring is smaller than the diameter of the first steel ball (12).

5. A multi-sleeve connecting rod combination tool according to claim 1, characterized in that: A recess is formed on the side wall of the connecting rod body (10) behind the last steel ball (12). The limiting steel ball (13) is embedded in the recess. The outer end of the limiting steel ball (13) extends out of the side wall of the connecting rod body (10), and its inner end face presses against the inner end face of the recess. The outer side wall of the middle part of the limiting steel ball (13) presses against the inner side wall of the recess. An annular extension is formed on the inner side wall of the outer end of the recess. The inner side wall of the annular extension presses against the outer side wall of the middle part of the limiting steel ball (13). The inner side wall of the outer end of the annular extension is smaller than the diameter of the limiting steel ball (13).

6. The multi-sleeve connecting rod combination tool according to claim 1, characterized in that: The outer wall at the rear end of the connecting rod body (10) is formed with a drive handle locking annular groove (14).

7. The multi-sleeve connecting rod combination tool according to claim 1, characterized in that: The front end of the connecting rod body (10) is formed with a slot, and the magnet (15) is inserted into the slot, with the front end of the magnet (15) extending out of the front end face of the slot.

8. A multi-sleeve connecting rod combination tool according to claim 1, characterized in that: The positioning groove (23) of the sleeve (20) inserted at the front end of the connecting rod body (10) is fitted with a corresponding first steel ball (12), and the limiting steel ball (13) presses against the front end surface of the square prism insertion hole (21) at the rear end of the middle through hole (22) of the corresponding sleeve (20).

9. A multi-sleeve connecting rod combination tool according to claim 1, characterized in that: In all the sleeves (20), the two middle sleeves (20) have different sizes of square prism insertion holes (21) at both ends. The frontmost sleeve (20) has a regular hexagonal prism insertion hole (25) formed in the middle of its front end, which extends to the middle through hole (22) of the frontmost sleeve (20) and communicates with and aligns with the middle through hole (22). The regular hexagonal prism insertion hole (25) is fitted and close to the outer side wall of the connecting rod body (10). The front ends of the two corresponding inner side walls of the regular hexagonal prism insertion hole (25) are formed with rearwardly extending vertical guide grooves (26). The rear end of the vertical guide grooves (26) extends to the front end of the central through hole (22). The limiting steel ball (13) is fitted with the corresponding vertical guide groove (26).

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