Dual-purpose connecting rod for connecting screwdriver head and sleeve

Abstract

The utility model relates to a dual-purpose connecting rod for connecting a bit and a sleeve, which comprises a first end part, a body, a second end part and a sliding sleeve with an axial hole, the second end part is constructed as a transmission end, and the sliding sleeve is constructed to be hollow and can slide on at least one part of the body close to the first end part along the longitudinal axis of the body. The sliding sleeve can be switched between a sleeve joint state and a bit joint state, and in the sleeve joint state, the sliding sleeve completely retracts back to the body so as to expose the first end to be jointed with the sleeve. And in the bit joint state, the sliding sleeve slides along the body and extends beyond the first end part, so that the axial hole of the sliding sleeve leaks from the first end part to be jointed with the bit. According to the dual-purpose connecting rod, under the working condition that a user needs to use the sleeve and the screwdriver head at the same time, the time for replacing tools back and forth is saved, the working efficiency is improved, and therefore the problem that the screwdriver head or the sleeve connecting rod is replaced back and forth, and the user is trapped is solved.

Description

Technical Field

[0001] The utility model relates to a dual-purpose connecting rod for connecting a screwdriver bit and a sleeve. Background Art

[0002] The traditional bit extension rod or socket extension rod is composed of a 6.35MM transmission end and a socket joint or a 6.35MM transmission end and a bit extension rod. However, the above two are two different products. When the bit or socket is replaced with a handle, electric tool or pneumatic tool, the extension rod needs to be replaced, which is time-consuming.

[0003] In the prior art extension rods, the bit extension rod and the socket extension rod are two different products. When the socket or the bit is needed at the same time, there is no way to achieve the interchangeability. Utility Model Content

[0004] In order to solve the troubles brought to users by changing the screwdriver bit or the sleeve connecting rod back and forth, the utility model provides a new dual-purpose connecting rod, which includes a first end, a body, a second end, and a sliding sleeve with an axial hole, wherein the second end is configured as a transmission end, and the sliding sleeve is configured to be hollow and can slide along the longitudinal axis of the body on at least a portion of the body near the first end, so as to switch between a sleeve engagement state and a screwdriver bit engagement state, wherein in the sleeve engagement state, the sliding sleeve is completely retracted onto the body to leak out the first end, and the first end can engage with the sleeve at this time, and in the screwdriver bit engagement state, the sliding sleeve slides along the body and extends beyond the first end so that the axial hole of the sliding sleeve leaks out from the first end, and the axial hole of the sliding sleeve can engage with the screwdriver bit at this time. Therefore, the dual-purpose connecting rod according to the utility model integrates the sleeve engagement function and the screwdriver bit engagement function, and can be engaged with the sleeve and the screwdriver bit at the same time. Therefore, under the working condition that the socket and the bit need to be used at the same time, the time for users to change tools back and forth is saved, and the work efficiency is improved, thereby solving the troubles brought to users by changing the bit or the socket connecting rod back and forth.

[0005] In one variation, the second end is configured as a 6.35.MM hexagonal post to accommodate a 1 / 4" quick-release post and a three-jaw clamp.

[0006] In another variant, a first device is provided on the body of the dual-purpose extension rod. The first device includes a first spring and a first ball located above the first spring and connected to the first spring. In another variant, the sliding sleeve includes a first portion in the direction towards the second end of the body, and the first portion is provided with a first axial groove. The first device of the dual-purpose extension rod cooperates with the first axial groove of the sliding sleeve, and the first ball of the first device is configured to be able to slide within the first axial groove, such that the sliding sleeve can slide on the body of the dual-purpose extension rod. In another variant, the first axial groove is provided with a front limiting end portion, and the front limiting end portion is configured to prevent the further sliding of the sliding sleeve in the direction towards the second end of the body in the sleeve engagement state. In another variant, the first axial groove is provided with a rear limiting end portion, and the rear limiting end portion is configured to prevent the further sliding of the sliding sleeve in the direction towards the first end of the body in the bit engagement state. The setting of the first axial groove and its front and rear limiting end portions allows the sliding sleeve to slide on the body of the dual-purpose extension rod and at the same time prevents the sliding sleeve from detaching from the dual-purpose extension rod.

[0007] In another variant, the dual-purpose extension rod is provided with a second device at a position near the first end of the body. The second device includes a second spring and a second ball located above the second spring and connected to the second spring. In another variant, the sliding sleeve includes a second portion in the direction towards the first end of the body, and the second portion is provided with a second axial groove for accommodating the sliding of the second ball when the sliding sleeve is switched from the sleeve engagement state to the bit engagement state. In another variant, when the first end of the dual-purpose extension rod is engaged with the sleeve, the second ball of the second device is configured to match a radial hole on the sleeve, thereby preventing the sleeve from detaching from the first end of the dual-purpose extension rod. The setting of the second device including the second spring allows the smooth sliding of the sliding sleeve when the sliding sleeve is switched from the sleeve engagement state to the bit engagement state on the one hand, and prevents the sleeve from detaching from the first end of the dual-purpose extension rod when the first end of the dual-purpose extension rod is engaged with the sleeve on the other hand.

[0008] In another variant, the sliding sleeve includes a radial hole provided on the upper body near its front end portion. A third ball is accommodated in the radial hole. The sliding sleeve is further provided with a circumferential groove around the upper body at the position of the radial hole, and a circumferential ring with a hole is provided in the circumferential groove. The diameter of the opening of the circumferential ring is smaller than the diameter of the third ball, and the hole of the circumferential ring is aligned with the radial direction and the third ball in the radial direction, such that the third ball will not detach from above the hole of the circumferential ring during the sliding process.

[0009] In one variant, the diameter of the radial hole at the inner surface of the upper body of the sliding sleeve is smaller than the diameter of the third ball to prevent the third ball from detaching from below the radial hole.

[0010] In another variation, the circumferential ring further includes a buckle, and the circumferential ring is configured to be elastically deformable. When the bit is inserted into the axial hole of the sleeve and engaged with the axial hole, the third marble abuts against the outer surface of the bit and is lifted up by the outer surface of the bit, and the lifted third marble enters the hole of the circumferential ring, so that the buckle on the circumferential ring will open, thereby applying a downward force to the third marble, and then the third marble presses the outer surface of the bit, so that the bit is not easy to fall off from the axial hole of the sleeve.

[0011] In another variation, when the bit is inserted into the axial hole of the sleeve and engaged with the axial hole, the third marble abuts against the outer surface of the bit to prevent the bit from falling off relative to the axial hole.

[0012] In another variation, the first end of the dual-purpose post is configured to have different shapes and different sizes to engage with a sleeve having a corresponding shape and size.

[0013] In another variation, the axial hole of the sliding sleeve is configured to have different shapes and different sizes so as to engage with a bit having a corresponding shape and size.

[0014] The dual-purpose connecting rod of the utility model integrates the functions of connecting the sleeve and the bit, and can be connected to the sleeve and the bit at the same time. Therefore, under the working condition that the sleeve and the bit are needed at the same time, the user can save the time of changing tools back and forth, improve the work efficiency, and solve the troubles brought to the user by changing the bit or the sleeve connecting rod back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by the illustrations in the corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the drawings do not constitute a scale limitation, wherein:

[0016] Figure 1 It is a schematic diagram of the dual-purpose connecting rod according to the utility model in a sleeve use state;

[0017] Figure 2 It is a schematic diagram of the dual-purpose connecting rod according to the utility model in the state of using a screwdriver bit;

[0018] Figure 3 is a cross-sectional view of a sliding sleeve of a dual-purpose connecting rod according to the utility model;

[0019] Figure 4 A three-dimensional view of the sliding sleeve of the dual-purpose connecting rod according to the utility model from one angle;

[0020] Figure 5This is a perspective view from another angle of the sliding sleeve of the dual-purpose connecting rod according to the present utility model. Detailed implementation manners

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will elaborate on each implementation manner of the present utility model with reference to the accompanying drawings. The following detailed description of the implementation manners of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected implementation manners of the present utility model. Even without these technical details and various changes and modifications based on the following implementation manners, the technical solutions claimed by the present utility model can still be achieved.

[0022] In the description of the present utility model, the terms "first", "second", and "third" are only used to describe features and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence of the indicated technical features.

[0023] In the description of the present utility model, unless otherwise clearly defined, terms such as "provided with", "set", "connected", and "joined" should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0024] The following further describes the dual-purpose connecting rod of the present utility model with reference to the accompanying drawings.

[0025] As Figure 1 and Figure 2 shown, the dual-purpose connecting rod 1 according to the present utility model includes a first end 10, a body 11, a second end 12, and a sliding sleeve 13 having an axial hole 131. The second end 12 is configured as a drive end for engaging with a power input device. In one embodiment, the second end 12 is configured as a 6.35MM hexagonal connecting rod to fit for use with a 1 / 4" quick connecting rod and a three-jaw chuck. The sliding sleeve 13 is configured to be hollow and can slide along the longitudinal axis of the body 11 on at least a part of the body 11 near the first end 10 so as to switch between a sleeve engagement state and a bit engagement state. As Figure 1 shown, in the sleeve engagement state, the sliding sleeve 13 is fully retracted onto the body 11 to expose the first end 10 for engaging with a sleeve. As Figure 2As shown, in the bit engagement state, the sleeve 13 slides along the body 11 and extends beyond the first end 10 so that the axial hole 131 of the sleeve 13 leaks out from the first end 10 for engagement with the bit. Therefore, the dual-purpose connecting rod according to the utility model integrates the function of engaging the sleeve and the function of engaging the bit, and can be engaged with the sleeve and the bit at the same time. Therefore, under the working condition that the sleeve and the bit need to be used at the same time, the user can save the time of changing tools back and forth, improve the work efficiency, and solve the trouble brought to the user by changing the bit or the sleeve connecting rod back and forth.

[0026] In one embodiment, a first device 14 is provided on the body 11 of the dual-purpose connecting rod 1, and the first device 14 includes a first spring 141 and a first marble 142 located above the first spring 141 and connected to the first spring 141. In one embodiment, the first marble 142 can be configured as a steel ball. In one embodiment, the sliding sleeve 13 includes a first portion 132 in a direction toward the second end 12 of the body 11, and the first portion 132 is provided with a first axial groove 133. The first device 14 of the dual-purpose connecting rod 1 cooperates with the first axial groove 133 of the sliding sleeve 13, and the first marble 142 of the first device 14 is configured to be able to slide in the first axial groove 133, so that the sliding sleeve 13 can slide on the body 11 of the dual-purpose connecting rod 1. The first axial groove 133 is provided with a front limit end 1331, and the front limit end 1331 is configured to prevent the sliding sleeve 13 from further sliding in the direction toward the second end 12 of the body 11 in the sleeve engagement state. In the sleeve engagement state, as Figure 1 As shown, the first marble 142 of the first device 14 is located in the first axial groove 133 and abuts against the front stop end 1331, so that the sleeve 13 cannot slide further in the direction toward the second end 12 of the body 11. The first axial groove 133 is also provided with a rear stop end 1332, which is configured to prevent the sleeve 13 from sliding further in the direction toward the first end 10 of the body 11 in the bit engagement state. In the bit engagement state, as shown in FIG. Figure 2 As shown, the first marble 142 of the first device 14 is located in the first axial groove 133 and abuts against the rear limit end 1332 , so that the sliding sleeve 13 cannot slide further in the direction toward the first end 10 of the body 11 .

[0027] When the sliding sleeve 13 transitions from the sleeve engagement state to the bit engagement state, the first ball 142 slides along the first axial groove 133 from a position abutting the front limit end portion 1331 towards the rear limit end portion 1332, causing the sliding sleeve 13 to slide along the body 11 towards the first end portion 10. When the first ball 142 slides along the first axial groove 133 and abuts against the rear limit end portion 1332, the sliding sleeve 13 leaks out from the first end portion 10 and is thus in the bit engagement state, enabling the axial hole 131 of the sliding sleeve 13 to engage with the bit.

[0028] In one embodiment, the dual-purpose adapter 1 is provided with a second device 15 at a position near the first end portion 10 of the body 11. The second device 15 includes a second spring 151 and a second ball 152 located above and connected to the second spring 151. In one embodiment, when the first end portion 10 of the dual-purpose adapter 1 engages with the sleeve, the second ball 152 of the second device 15 is configured to match a radial hole provided on the sleeve, thereby preventing the sleeve from detaching from the first end portion 10 of the dual-purpose adapter 1.

[0029] In one embodiment, after aligning the second ball 152 of the second device 15 with the radial hole provided on the sleeve, the sleeve is inserted into the first end portion 10 of the dual-purpose adapter 1, so that the second ball 152 of the second device 15 slides into the radial hole of the sleeve, preventing the sleeve from detaching from the first end portion 10 of the dual-purpose adapter 1.

[0030] In one embodiment, the sliding sleeve 13 includes a second portion 134 in the direction towards the first end portion 10 of the body 11. The second portion 134 is provided with a second axial groove 135 for accommodating the sliding of the second ball 152 when the sliding sleeve 13 transitions from the sleeve engagement state to the bit engagement state. In one variant, when the sliding sleeve 13 slides from the sleeve engagement state towards the first end portion 10, the front end portion of the second axial groove 135 of the sliding sleeve 13 first slides into abutment with the second ball 152. When a further external force is applied and the sliding sleeve 13 slides further towards the first end portion 10, the sliding sleeve 13 passes over the second ball 152 and thus the second ball 152 slides within the second axial groove 135 of the sliding sleeve 13 until the bit engagement state is reached.

[0031] In one variant, as Figure 3 、 Figure 4 and Figure 5As shown, the sliding sleeve 13 includes a radial hole 138 provided on the upper body 137 of the sliding sleeve 13 near its front end 136, and a third ball 159 is accommodated in the radial hole 138. In a variant, the sliding sleeve 13 is further provided with a circumferential groove 139 around the upper body 137 at the position of the radial hole 138, and a circumferential ring 1312 having a hole 1311 is provided in the circumferential groove 139. The aperture of the hole 1311 of the circumferential ring 1312 is smaller than the diameter of the third ball 159, and the hole 1311 of the circumferential ring 1312 is aligned with the radial hole 138 and the third ball 159 in the radial direction, so that the third ball 159 will not fall off from above the hole 1311 of the circumferential ring 1312 during the sliding process, as Figure 4 shown.

[0032] In addition, as Figure 5 shown, the circumferential ring 1312 further includes a buckle 1313, and the circumferential ring 1312 is configured to be elastically deformable. In one embodiment, the buckle 1313 is arranged at a position on the circumferential ring 1312 opposite to the hole 1311; it is also feasible to arrange the buckle 1313 at other positions on the circumferential ring 1312.

[0033] In another variant, the aperture of the radial hole 138 at the inner surface 1372 of the upper body 137 of the sliding sleeve 13 is smaller than the diameter of the third ball 159 to prevent the third ball 159 from falling off from below the radial hole 138.

[0034] During the conversion of the sliding sleeve 13 from the sleeve engagement state to the bit engagement state, the third ball 159 of the sliding sleeve 13 first abuts against the outer surface of the body 11 of the dual-purpose adapter 1 and slides thereon. Due to the limiting effect of the circumferential ring 1312, the third ball 159 will not leak out from the hole 1311 of the circumferential ring 1312; however, when the third ball 159 of the sliding sleeve 13 slides across the first end 10 of the dual-purpose adapter 1, the third ball 159 moves slightly downward (presenting a natural state) due to the lack of the support of the outer surface of the body 11 of the dual-purpose adapter 1, and at the same time, since the aperture of the radial hole 138 of the sliding sleeve 13 at the inner surface 1372 of the upper body 137 of the sliding sleeve 13 is smaller than the diameter of the third ball 159, the third ball 159 will not break away from below the radial hole 138; finally, when the sliding sleeve 13 moves to the bit engagement state, the bit is inserted into the axial hole 131 of the sliding sleeve 13 and engages with the axial hole 131, and the third ball 159 abuts against the outer surface of the bit and is lifted by the outer surface of the bit. The lifted third ball 159 enters the hole 1311 of the circumferential ring 1312, causing the circumferential ring 1312 to expand, and then the buckle 1313 on the circumferential ring 1312 will open; in addition, the elastically deformed circumferential ring 1312 will apply a downward force to the third ball 159 in the reverse direction, so that the third ball 159 presses against the outer surface of the bit, making it difficult for the bit to fall off from the axial hole 131 of the sliding sleeve 13.

[0035] In one variant, the first end portion 10 of the dual-purpose adapter rod 1 is configured to have different shapes and different sizes so as to engage with a socket having corresponding shapes and sizes. In one variant, the first end portion 10 of the dual-purpose adapter rod 1 has a square or hexagonal or octagonal shape, and may also have other shapes. In one variant, the first end portion 10 of the dual-purpose adapter rod 1 is sized to accommodate sockets with diameters ranging from 4 mm to 12 mm, such as a socket with a diameter of 4 mm, a socket with a diameter of 6 mm, a socket with a diameter of 8 mm, etc.

[0036] In one variant, the axial hole 131 of the sliding sleeve 13 is configured to have different shapes and different sizes so as to engage with a bit having corresponding shapes and sizes. In one variant, the axial hole 131 of the sliding sleeve 13 has a square or hexagonal or octagonal shape, and may also have other shapes. In one variant, the axial hole 131 of the sliding sleeve 13 is sized to accommodate bits with diameters ranging from 2 mm to 10 mm, such as a bit with a diameter of 2 mm, a bit with a diameter of 3 mm, a bit with a diameter of 4 mm, a bit with a diameter of 5 mm, a bit with a diameter of 6 mm, etc.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dual-purpose connecting rod (1) for connecting a screwdriver bit and a socket, characterized in that: The dual-purpose connecting rod (1) comprises a first end (10), a body (11), a second end (12) and a sliding sleeve (13) having an axial hole (131), wherein the second end (12) is configured as a transmission end, and the sliding sleeve (13) is configured to be hollow and can slide along the longitudinal axis of the body (11) on at least a portion of the body (11) close to the first end (10) so as to switch between a sleeve engagement state and a bit engagement state, wherein in the sleeve engagement state, the sliding sleeve (13) is completely retracted onto the body (11) to expose the first end for engagement with the sleeve, and in the bit engagement state, the sliding sleeve (13) slides along the body (11) and extends beyond the first end (10) so that the axial hole (131) of the sliding sleeve (13) is exposed from the first end (10) for engagement with the bit.

2. The dual-purpose connecting rod (1) according to claim 1, characterized in that: The second end portion (12) is constructed as a 6.35MM hexagonal connecting rod to be suitable for a 1 / 4" quick connecting rod and a three-claw clamp.

3. The dual-purpose connecting rod (1) according to claim 1, characterized in that: A first device (14) is arranged on the body (11) of the dual-purpose connecting rod (1), and the first device (14) comprises a first spring (141) and a first marble (142) located above the first spring (141) and connected to the first spring (141).

4. The dual-purpose connecting rod (1) according to claim 3, characterized in that: The sliding sleeve (13) comprises a first portion (132) in a direction toward the second end portion (12) of the body (11), wherein the first portion (132) is provided with a first axial groove (133).

5. The dual-purpose connecting rod (1) according to claim 4, characterized in that: The first device (14) of the dual-purpose connecting rod (1) cooperates with the first axial groove (133) of the sliding sleeve (13), and the first marble (142) of the first device (14) is constructed to be able to slide in the first axial groove (133), so that the sliding sleeve (13) can slide on the body (11) of the dual-purpose connecting rod (1).

6. The dual-purpose connecting rod (1) according to claim 4, characterized in that: The first axial groove (133) is provided with a front limit end (1331), and the front limit end (1331) is configured to prevent the sliding sleeve (13) from further sliding in the direction toward the second end (12) of the body (11) in the sleeve engagement state.

7. The dual-purpose connecting rod (1) according to claim 4, characterized in that: The first axial groove (133) is provided with a rear limit end (1332), and the rear limit end (1332) is configured to prevent the sliding sleeve (13) from further sliding in the direction toward the first end (10) of the body (11) in the bit engagement state.

8. The dual-purpose connecting rod (1) according to claim 1, characterized in that: The dual-purpose connecting rod (1) is provided with a second device (15) at a position close to the first end (10) of the main body (11), and the second device (15) comprises a second spring (151) and a second marble (152) located above the second spring (151) and connected to the second spring (151).

9. The dual-purpose connecting rod (1) according to claim 8, characterized in that: The sliding sleeve (13) comprises a second portion (134) in a direction toward the first end portion (10) of the body (11), the second portion (134) being provided with a second axial groove (135), the second axial groove (135) being used to accommodate the sliding of a second marble (152) when the sliding sleeve (13) is switched from the sleeve engagement state to the bit engagement state.

10. The dual-purpose connecting rod (1) according to claim 8, characterized in that: When the first end (10) of the dual-purpose connecting rod (1) is engaged with the sleeve, the second marble (152) of the second device (15) is configured to match the radial hole on the sleeve, thereby preventing the sleeve from falling off relative to the first end (10) of the dual-purpose connecting rod (1).

11. The dual-purpose connecting rod (1) according to claim 1, characterized in that: The sliding sleeve (13) comprises a radial hole (138) arranged on the upper body (137) of the sliding sleeve (13) near its front end (136), wherein the radial hole (138) accommodates a third marble (159), and the sliding sleeve (13) is also provided with a circumferential groove (139) around the upper body (137) at the position of the radial hole (138), wherein a circumferential groove (139) having a hole (1311) is provided. Ring (1312), the aperture of the hole (1311) of the circumferential ring (1312) is smaller than the diameter of the third marble (159), and the hole (1311) of the circumferential ring (1312) is aligned with the radial hole (138) and the third marble (159) in the radial direction, so that the third marble (159) will not fall off from above the hole (1311) of the circumferential ring (1312) during sliding.

12. The dual-purpose connecting rod (1) according to claim 11, characterized in that: The circumferential ring (1312) further includes a buckle (1313), and the circumferential ring (1312) is configured to be elastically deformable.

13. The dual-purpose connecting rod (1) according to claim 12, characterized in that: When the screwdriver bit is inserted into the axial hole (131) of the sliding sleeve (13) and engaged with the axial hole (131), the third marble (159) abuts against the outer surface of the screwdriver bit and is lifted up by the outer surface of the screwdriver bit. The lifted third marble (159) enters the hole (1311) of the circumferential ring (1312), so that the buckle (1313) on the circumferential ring (1312) opens, thereby applying a downward force to the third marble (159), thereby causing the third marble (159) to press against the outer surface of the screwdriver bit, so that the screwdriver bit is not easy to fall off from the axial hole (131) of the sliding sleeve (13).

14. The dual-purpose connecting rod (1) according to claim 1, characterized in that: The first end portion (10) of the dual-purpose connecting rod (1) is configured to have different shapes and different sizes so as to be engaged with a sleeve having a corresponding shape and size.

15. The dual-purpose connecting rod (1) according to claim 1, characterized in that: The axial hole (131) of the sliding sleeve (13) is configured to have different shapes and different sizes so as to engage with a bit having corresponding shapes and sizes.

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