Z-type adjustable attachment member for power screwdriver

Abstract

The utility model belongs to the technical field of power screwdrivers, and discloses a Z-shaped adjustable attachment part for a power screwdriver, which comprises an extension shell and a suction nozzle bit clamping mechanism, the suction nozzle screwdriver head clamping mechanism comprises a screwdriver head, a suction nozzle and an adjusting nut; the suction nozzle is of a hollow tubular structure and communicates with an air suction hole channel in the extending shell. One end of the screwdriver head penetrates through the suction nozzle and is inserted into the extending shell, and a fixing block I is arranged on the inner wall of the adjusting nut; a fixing block II is arranged on the outer wall of the suction nozzle; the suction nozzle is inserted into the adjusting nut from the upper end of the adjusting nut, and the suction nozzle is limited through matched connection of the fixing block I and the fixing block II. The lower end of the suction nozzle is positioned outside the adjusting nut; the adjusting nut is inserted into the extension shell and is in threaded connection with the bottom of the extension shell; according to the utility model, the exposed length of the screwdriver head can be freely adjusted, and the optimal adaptation and concentricity can be obtained when the screwdriver head is jointed with a screw head pattern.

Description

Technical Field

[0001] The utility model belongs to the technical field of power screwdrivers and relates to a Z-shaped adjustable attachment component for a power screwdriver. Background Art

[0002] In the limited space of the locked workpiece, such as the recessed part of the locked workpiece, it is difficult for the power screwdriver to approach the screw to be locked, resulting in the inability to use the power screwdriver. The attachment component of the power screwdriver is the Z-type attachment component. Patent CN204195642U records that the Z-type attachment component can be used with the power screwdriver, so that the screw to be locked can be approached in the limited space of the locked workpiece.

[0003] Since the traditional suction nozzle bit clamping mechanism is fixed and the exposed length of the bit cannot be adjusted, the optimal fit and concentricity cannot be obtained when sucking the screw to adapt to the screw nut pattern, causing the screw to be skewed and stuck.

[0004] Therefore, it is of great significance to study a Z-shaped adjustable attachment component for a power screwdriver to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provides a Z-shaped adjustable attachment component for a power screwdriver.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A Z-shaped adjustable attachment component for a power screwdriver, comprising an extension shell and a nozzle and bit clamping mechanism; the nozzle and bit clamping mechanism comprises a bit and a nozzle; the nozzle is a hollow tubular structure, and the nozzle is connected to an air suction channel inside the extension shell; one end of the bit passes through the nozzle and is inserted into the extension shell, and the nozzle and bit clamping mechanism also includes an adjusting nut;

[0008] A fixing block I is provided on the inner wall of the adjusting nut; a fixing block II is provided on the outer wall of the suction nozzle; the suction nozzle is inserted into the interior of the adjusting nut from the upper end of the adjusting nut, and the suction nozzle is limited by the matching connection of the fixing block I and the fixing block II, that is, the suction nozzle is suspended on the adjusting nut through the fixing block I and the fixing block II; the lower end of the suction nozzle is located outside the adjusting nut;

[0009] The adjusting nut is inserted into the extension housing and is threadedly connected to the bottom of the extension housing;

[0010] With such a design, the length of the nut entering the extension shell can be controlled, thereby controlling the length of the screw bit extending out of the suction nozzle, so as to facilitate the screw bit to recognize the screw, and solve the problem in the prior art that the suction nozzle cannot obtain the best fit and concentricity when sucking the screw to adapt to the screw and nut pattern; wherein, the screw bit recognition is achieved by matching the screw bit pattern with the screw and nut pattern, with the help of the negative pressure function of the suction nozzle, during the process from the screw being sucked in to the recognition of the screw, the screw bit maintains a stable positioning on the screw.

[0011] As the preferred technical solution:

[0012] As described above, the Z-shaped adjustable attachment component for a power screwdriver, the nozzle and bit clamping mechanism also includes a fixing nut; the fixing nut is sleeved on the adjusting nut and threadedly connected with the adjusting nut; the fixing nut is used to control the length of the adjusting nut inserted into the extension shell.

[0013] The Z-shaped adjustable attachment component for a power screwdriver as described above, wherein the extension housing comprises an upper cover, a middle cover, a lower cover and five connecting rods;

[0014] The upper cover is a hollow structure, and an upper bearing group is arranged inside the upper cover; the upper bearing group includes an upper bearing I, an upper bearing II, an upper bearing III, an upper bearing IV and an upper bearing V; the outer rings of the upper bearing I, the upper bearing II, the upper bearing III, the upper bearing IV and the upper bearing V are all fixedly connected to the bottom of the upper cover;

[0015] The middle cover is a hollow structure, and a gear set and a lower bearing set are arranged inside the middle cover;

[0016] The gear set includes an output gear, a driven gear I, a driven gear II, a driven gear III and an input gear meshed in sequence;

[0017] The lower bearing group includes a lower bearing I, a lower bearing II, a lower bearing III, a lower bearing IV and a lower bearing V; the outer rings of the lower bearing I, the lower bearing II, the lower bearing III, the lower bearing IV and the lower bearing V are all fixedly connected to the bottom of the middle cover;

[0018] Five connecting rods are placed vertically and located inside the middle cover, and the upper ends of the five connecting rods are respectively inserted into the interior of the upper cover; the five connecting rods are respectively recorded as connecting rod I, connecting rod II, connecting rod III, connecting rod IV and connecting rod V;

[0019] The connecting rod I penetrates the output gear and is fixedly connected to the output gear; one end of the connecting rod I is fixedly connected to the inner ring of the upper bearing I, and the other end is fixedly connected to the inner ring of the lower bearing I;

[0020] The connecting rod II penetrates into the driven gear I and is fixedly connected to the driven gear I; one end of the connecting rod II is fixedly connected to the inner ring of the upper bearing II, and the other end is fixedly connected to the inner ring of the lower bearing II;

[0021] The connecting rod III penetrates into the driven gear II and is fixedly connected to the driven gear II; one end of the connecting rod III is fixedly connected to the inner ring of the upper bearing III, and the other end is fixedly connected to the inner ring of the lower bearing III;

[0022] The connecting rod IV penetrates into the driven gear III and is fixedly connected to the driven gear III; one end of the connecting rod IV is fixedly connected to the inner ring of the upper bearing IV, and the other end is fixedly connected to the inner ring of the lower bearing IV;

[0023] The connecting rod V penetrates the input gear and is fixedly connected to the input gear; one end of the connecting rod V passes through the upper bearing V and the upper cover and is fixedly connected to the inner ring of the upper bearing V, and the other end is fixedly connected to the inner ring of the lower bearing V;

[0024] The design of the upper bearing group and the lower bearing group can reduce the friction between each gear and the extension housing. The design of the connecting rod can prevent each gear from moving in the vertical direction, thereby destroying the meshing relationship of each gear in the gear group and making the meshing more stable.

[0025] One end of the screwdriver bit passes through the lower cover from bottom to top, is inserted into the interior of the middle cover, and is fixedly connected to the connecting rod I through a coupling.

[0026] As described above, the Z-shaped adjustable attachment component for a power screwdriver, the nozzle and bit clamping mechanism further comprises a clamping bearing I, a clamping bearing II and a clamping bearing III;

[0027] The clamping bearing I, clamping bearing II and clamping bearing III are arranged inside the extension housing and are sleeved on the bit from top to bottom; the inner rings of the clamping bearing I, clamping bearing II and clamping bearing III are fixedly connected to the bit, and the outer rings of the clamping bearing I, clamping bearing II and clamping bearing III are fixedly connected to the extension housing, and the clamping bearing I, clamping bearing II and clamping bearing III play the role of clamping, guiding and reducing wear.

[0028] As described above, the Z-shaped adjustable attachment component for a power screwdriver has an air suction channel arranged inside the lower cover; one end of the air suction channel is connected to the suction nozzle, and the other end is connected to the quick connector, which is used to connect the air pipe to facilitate connection with an external air pressure source to generate an air suction function.

[0029] The Z-shaped adjustable attachment component for a power screwdriver as described above also includes a blocker and a buffer spring; the blocker and the buffer spring are located inside the extension shell; the blocker is a plate-like structure with a through hole in the middle, the blocker is located below the clamping bearing III, and is sleeved on the bit; the blocker is fixedly connected to the extension shell; the buffer spring is sleeved on the bit, one end of the buffer spring is connected to the lower surface of the blocker, and the other end is connected to the suction nozzle, when the suction nozzle hits the workpiece, the buffer spring is compressed under the action of force, thereby reducing collision damage.

[0030] As described above, the Z-shaped adjustable attachment component for a power screwdriver has a fixing block III on the inner wall of the suction nozzle; the fixing block III is a circular ring structure and is placed horizontally; the other end of the buffer spring is connected to the fixing block III.

[0031] As described above, the Z-shaped adjustable attachment component for the power screwdriver is provided with positioning pins on the extended shell, and the number of the positioning pins is 3, which are respectively marked as positioning pin I, positioning pin II and positioning pin III; the positioning pins are used to position the power screwdriver to facilitate the connection between the power screwdriver and the connecting rod V.

[0032] The Z-shaped adjustable attachment component for a power screwdriver as described above can be adjusted adaptively according to different locking environments, the length of the extended housing, the number of internal driven wheels, etc.

[0033] Beneficial effects:

[0034] (1) The Z-shaped adjustable attachment component for a power screwdriver of the utility model can solve the locking environment of a limited space in a recessed part of a workpiece, thereby increasing the scope of application.

[0035] (2) The Z-shaped adjustable attachment component for the power screwdriver of the utility model adjusts the length of the screwdriver bit extending out of the suction nozzle by controlling the adjusting nut, so as to facilitate the identification of the nut. At the same time, when the screwdriver bit moves downward and engages with the flower pattern of the screw head, the best fit and concentricity can be obtained.

[0036] (3) The Z-shaped adjustable attachment component for the power screwdriver of the utility model has a built-in buffer spring, which can reduce the impact between the suction nozzle and the screw, thereby reducing collision damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the Z-shaped adjustable attachment component of the utility model used in conjunction with a power screwdriver;

[0038] Figure 2 It is a schematic diagram of a Z-shaped adjustable attachment component for a power screwdriver of the utility model;

[0039] Figures 3-4It is a cross-sectional view at different angles of the Z-shaped adjustable attachment component for a power screwdriver of the utility model;

[0040] Figure 5 It is a partial exploded view of the Z-shaped adjustable attachment component for a power screwdriver of the utility model;

[0041] Figure 6 It is a schematic diagram of locking a workpiece when using the Z-shaped adjustable attachment component for a power screwdriver of the utility model;

[0042] Figure 7 It is a cross-sectional view of the nozzle and bit clamping mechanism of the utility model;

[0043] Among them, 21-upper cover, 22-middle cover, 23-lower cover, 311-upper bearing I, 312-upper bearing II, 313-upper bearing III, 314-upper bearing IV, 315-upper bearing V, 321-output gear, 322-driven gear I, 323-driven gear II, 324-driven gear III, 325-input gear, 331-lower bearing I, 332-lower bearing II, 333-lower bearing III, 334-lower bearing IV, 335-lower bearing V, 36- Air suction channel, 37-quick connector, 41-extension shell, 411-locating pin I, 412-locating pin II, 413-locating pin III, 51-clamping bearing I, 52-clamping bearing III, 53-clamping bearing IIII, 54-buffer spring, 55-suction nozzle, 56-batch head, 57-fixing nut, 58-adjusting nut, 61-coupling, 62-blocker, 64-fixing block III, 65-fixing block II, 66-workpiece, 67-locked object, 68-fixing block I. DETAILED DESCRIPTION

[0044] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

[0045] Z-type adjustable attachment for power screwdrivers, such as Figures 1 to 7 As shown, it includes an extension housing 41, a nozzle and bit clamping mechanism, a stopper 62 and a buffer spring 54;

[0046] like Figures 2-3 As shown, the extension housing includes an upper cover 21, a middle cover 22, a lower cover 23 and five connecting rods;

[0047] The upper cover 21 is a hollow structure, and an upper bearing group is provided inside the upper cover 21; the upper bearing group includes an upper bearing I 311, an upper bearing II 312, an upper bearing III 313, an upper bearing IV 314 and an upper bearing V 315; the outer rings of the upper bearing I 311, the upper bearing II 312, the upper bearing III 313, the upper bearing IV 314 and the upper bearing V 315 are all fixedly connected to the bottom of the upper cover 21;

[0048] The middle cover 22 is a hollow structure, and a gear set and a lower bearing set are arranged inside the middle cover 22;

[0049] The gear set includes an output gear 321, a driven gear I 322, a driven gear II 323, a driven gear III 324 and an input gear 325 which are meshed in sequence;

[0050] The lower bearing group includes a lower bearing I 331, a lower bearing II 332, a lower bearing III 333, a lower bearing IV 334 and a lower bearing V 335; the outer rings of the lower bearing I 331, the lower bearing II 332, the lower bearing III 333, the lower bearing IV 334 and the lower bearing V 335 are all fixedly connected to the bottom of the middle cover 22;

[0051] Five connecting rods are placed vertically and located inside the middle cover 22, and the upper ends of the five connecting rods are respectively inserted into the upper cover 21; the five connecting rods are respectively denoted as connecting rod I, connecting rod II, connecting rod III, connecting rod IV and connecting rod V;

[0052] The connecting rod I penetrates into the output gear 321 and is fixedly connected to the output gear 321; one end of the connecting rod I is fixedly connected to the inner ring of the upper bearing I311, and the other end is fixedly connected to the inner ring of the lower bearing I331;

[0053] The connecting rod II penetrates into the driven gear I 322 and is fixedly connected to the driven gear I 322; one end of the connecting rod II is fixedly connected to the inner ring of the upper bearing II 312, and the other end is fixedly connected to the inner ring of the lower bearing II 332;

[0054] The connecting rod III penetrates into the driven gear II 323 and is fixedly connected to the driven gear II 323; one end of the connecting rod III is fixedly connected to the inner ring of the upper bearing III 313, and the other end is fixedly connected to the inner ring of the lower bearing III 333;

[0055] The connecting rod IV penetrates into the driven gear III 324 and is fixedly connected to the driven gear III 324; one end of the connecting rod IV is fixedly connected to the inner ring of the upper bearing IV 314, and the other end is fixedly connected to the inner ring of the lower bearing IV 334;

[0056] The connecting rod V penetrates the input gear 325 and is fixedly connected to the input gear 325; one end of the connecting rod V passes through the upper bearing V 315 and the upper cover 21 and is fixedly connected to the inner ring of the upper bearing V 315, and the other end is fixedly connected to the inner ring of the lower bearing V 335;

[0057] like Figure 4 As shown, the extended housing is provided with three positioning pins, which are respectively marked as positioning pin I 411, positioning pin II 412 and positioning pin III 413, and the positioning pins are used to position the power screwdriver;

[0058] like Figure 5 , Figure 7 As shown, the nozzle and bit clamping mechanism includes a nozzle 55, a bit 56, an adjusting nut 58, a fixing nut 57, a clamping bearing I 51, a clamping bearing II 52, and a clamping bearing III 53;

[0059] like Figure 3 , Figure 7 As shown, a fixing block I 68 is provided on the inner wall of the adjusting nut 58; the suction nozzle 55 is a hollow tubular structure, and a fixing block II 65 is provided on the outer wall; the suction nozzle 55 is inserted into the interior of the adjusting nut 58 from the upper end of the adjusting nut 58, and the suction nozzle 55 is limited by the matching connection of the fixing block I 68 and the fixing block II 65; the lower end of the suction nozzle 55 is located outside the adjusting nut 58; the adjusting nut 58 is inserted into the interior of the extension shell 41 and is threadedly connected with the bottom of the extension shell 41; the fixing nut 57 is sleeved on the adjusting nut 58 and is threadedly connected with the adjusting nut 58; the fixing nut 57 is used to control the length of the adjusting nut 58 inserted into the interior of the extension shell 41; the suction nozzle 55 is connected to one end of the air suction channel 36; the air suction channel 36 is arranged inside the lower cover 23, and the other end of the air suction channel 36 is connected to the quick connector 37;

[0060] One end of the screwdriver bit 56 passes through the suction nozzle 55 and passes through the lower cover 23 from bottom to top, is inserted into the interior of the middle cover 22, and is fixedly connected to the connecting rod I through the coupling 61;

[0061] The clamping bearing I 51, the clamping bearing II 52 and the clamping bearing III 53 are arranged inside the extension housing and are sleeved on the screwdriver bit 56 from top to bottom; the inner rings of the clamping bearing I 51, the clamping bearing II 52 and the clamping bearing III 53 are fixedly connected to the screwdriver bit 56, and the outer rings of the clamping bearing I 51, the clamping bearing II 52 and the clamping bearing III 53 are fixedly connected to the extension housing;

[0062] A fixing block III 64 is provided on the inner wall of the suction nozzle 55, and the fixing block III 64 is a circular ring structure and is placed horizontally; the blocker 62 and the buffer spring 54 are located inside the extended shell; the blocker 62 is a plate-like structure with a through hole in the middle, and the blocker 62 is located below the clamping bearing III 53 and is sleeved on the screwdriver bit 56; the blocker 62 is fixedly connected to the extended shell; the buffer spring 54 is sleeved on the screwdriver bit 56, one end of the buffer spring is connected to the lower surface of the blocker 62, and the other end is connected to the fixing block III 64.

[0063] The specific usage process is as follows: Figure 6 As shown, a Z-shaped adjustable attachment component for a power screwdriver, a power screwdriver and a negative pressure pump are used together; wherein, the power screw is positioned by three positioning pins and connected to the connecting rod V; the negative pressure pump is connected to the quick connector 37; then the adjusting nut 58 is controlled to enter the internal length of the extension shell 41, thereby controlling the length of the screw head 56 extending out of the suction nozzle 55, so that when the screw head pattern and the screw nut pattern are adapted, the best fit and concentricity are obtained; then the negative pressure pump is turned on, and the screw is sucked by means of the negative pressure function of the suction nozzle 55, and then the Z-shaped adjustable attachment component for the power screwdriver is extended into the recess of the workpiece 66, and the power screwdriver is started to drive the screw head 56 to rotate, thereby locking the locked object 67; during use, if the suction nozzle 55 touches the workpiece, the buffer spring 54 can be compressed under the action of force, thereby reducing the damage to the suction nozzle 55.

Claims

1. A Z-shaped adjustable attachment component for a power screwdriver, comprising an extension housing (41) and a nozzle and bit clamping mechanism; the nozzle and bit clamping mechanism comprises a bit (56) and a nozzle (55); the nozzle (55) is a hollow tubular structure, and the nozzle (55) is connected to an air suction channel (36) inside the extension housing (41); one end of the bit (56) passes through the nozzle (55) and is inserted into the extension housing (41), characterized in that: The nozzle bit clamping mechanism also includes an adjusting nut (58); A fixing block I (68) is provided on the inner wall of the adjusting nut (58); a fixing block II (65) is provided on the outer wall of the suction nozzle (55); the suction nozzle (55) is inserted into the interior of the adjusting nut (58) from the upper end of the adjusting nut (58), and the suction nozzle (55) is limited by the matching connection between the fixing block I (68) and the fixing block II (65); the lower end of the suction nozzle (55) is located outside the adjusting nut (58); The adjusting nut (58) is inserted into the extension housing (41) and is threadedly connected to the bottom of the extension housing (41).

2. The Z-shaped adjustable attachment component for a power screwdriver according to claim 1, characterized in that: The nozzle bit clamping mechanism also includes a fixing nut (57); the fixing nut (57) is sleeved on the adjusting nut (58) and is threadedly connected to the adjusting nut (58); the fixing nut (57) is used to control the length of the adjusting nut (58) inserted into the extension shell (41).

3. The Z-shaped adjustable attachment component for a power screwdriver according to claim 1, characterized in that: The extension housing comprises an upper cover (21), a middle cover (22), a lower cover (23) and five connecting rods; The upper cover (21) is a hollow structure, and an upper bearing group is arranged inside the upper cover (21); the upper bearing group includes an upper bearing I (311), an upper bearing II (312), an upper bearing III (313), an upper bearing IV (314) and an upper bearing V (315); the outer rings of the upper bearing I (311), the upper bearing II (312), the upper bearing III (313), the upper bearing IV (314) and the upper bearing V (315) are fixedly connected to the bottom of the upper cover (21); The middle cover (22) is a hollow structure, and a gear set and a lower bearing set are arranged inside the middle cover (22); The gear set includes an output gear (321), a driven gear I (322), a driven gear II (323), a driven gear III (324) and an input gear (325) which are meshed in sequence; The lower bearing group includes a lower bearing I (331), a lower bearing II (332), a lower bearing III (333), a lower bearing IV (334) and a lower bearing V (335); the outer rings of the lower bearing I (331), the lower bearing II (332), the lower bearing III (333), the lower bearing IV (334) and the lower bearing V (335) are fixedly connected to the bottom of the middle cover (22); Five connecting rods are placed vertically and located inside the middle cover (22), and the upper ends of the five connecting rods are respectively inserted into the interior of the upper cover (21); the five connecting rods are respectively denoted as connecting rod I, connecting rod II, connecting rod III, connecting rod IV and connecting rod V; The connecting rod I penetrates into the output gear (321) and is fixedly connected to the output gear (321); one end of the connecting rod I is fixedly connected to the inner ring of the upper bearing I (311), and the other end is fixedly connected to the inner ring of the lower bearing I (331); The connecting rod II penetrates into the driven gear I (322) and is fixedly connected to the driven gear I (322); one end of the connecting rod II is fixedly connected to the inner ring of the upper bearing II (312), and the other end is fixedly connected to the inner ring of the lower bearing II (332); The connecting rod III penetrates into the driven gear II (323) and is fixedly connected to the driven gear II (323); one end of the connecting rod III is fixedly connected to the inner ring of the upper bearing III (313), and the other end is fixedly connected to the inner ring of the lower bearing III (333); The connecting rod IV penetrates into the driven gear III (324) and is fixedly connected to the driven gear III (324); one end of the connecting rod IV is fixedly connected to the inner ring of the upper bearing IV (314), and the other end is fixedly connected to the inner ring of the lower bearing IV (334); The connecting rod V penetrates the input gear (325) and is fixedly connected to the input gear (325); one end of the connecting rod V passes through the upper bearing V (315) and the upper cover (21) and is fixedly connected to the inner ring of the upper bearing V (315), and the other end is fixedly connected to the inner ring of the lower bearing V (335); One end of the screwdriver bit (56) passes through the lower cover (23) from bottom to top and is inserted into the interior of the middle cover (22), and is fixedly connected to the connecting rod I through a coupling (61).

4. The Z-shaped adjustable attachment component for a power screwdriver according to claim 3, characterized in that: The nozzle bit clamping mechanism also includes a clamping bearing I (51), a clamping bearing II (52) and a clamping bearing III (53); The clamping bearing I (51), the clamping bearing II (52) and the clamping bearing III (53) are arranged inside the extension housing and are sleeved on the screwdriver bit (56) from top to bottom; the inner rings of the clamping bearing I (51), the clamping bearing II (52) and the clamping bearing III (53) are fixedly connected to the screwdriver bit (56), and the outer rings of the clamping bearing I (51), the clamping bearing II (52) and the clamping bearing III (53) are fixedly connected to the extension housing.

5. The Z-shaped adjustable attachment component for a power screwdriver according to claim 3, characterized in that: The air suction hole (36) is arranged inside the lower cover (23); one end of the air suction hole (36) is communicated with the suction nozzle (55), and the other end is connected with the quick connector (37).

6. The Z-shaped adjustable attachment component for a power screwdriver according to claim 3, characterized in that: The Z-shaped adjustable attachment component for a power screwdriver also includes a stopper (62) and a buffer spring (54); the stopper (62) and the buffer spring (54) are located inside the extension shell; the stopper is a plate-like structure with a through hole in the middle, the stopper is located below the clamping bearing III (53) and is sleeved on the screwdriver bit (56); the stopper is fixedly connected to the extension shell; the buffer spring (54) is sleeved on the screwdriver bit (56), one end of the buffer spring is connected to the lower surface of the stopper, and the other end is connected to the suction nozzle (55).

7. The Z-shaped adjustable attachment component for a power screwdriver according to claim 6, characterized in that: A fixing block III (64) is arranged on the inner wall of the suction nozzle (55); the fixing block III (64) is a circular ring structure and is placed horizontally; the other end of the buffer spring (54) is connected to the fixing block III (64).

8. The Z-shaped adjustable attachment component for a power screwdriver according to claim 3, characterized in that: A positioning pin is provided on the extension shell; the positioning pin is used for positioning the power screwdriver.

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