A screwdriver applicable to installing mechanical devices

Abstract

The present invention relates to a screwdriver, and in particular to a screwdriver applicable to the installation of mechanical devices. The purpose of the present invention is to provide a screwdriver applicable to the installation of mechanical devices with improved practicability and work efficiency. The technical solution is: a screwdriver applicable to the installation of mechanical devices, including a connecting frame, a first fixed ring, a first rotating ring, a rotating rod, an adjustment mechanism and a locking mechanism, etc., a first fixed ring is provided on the lower side of the interior of the connecting frame, a first rotating ring is rotatably provided on the inner side of the first fixed ring, a rotating rod is provided in the middle of the bottom of the first rotating ring, an adjustment mechanism that can install different types of screws according to people's needs is provided on the lower side of the interior of the connecting frame, and a locking mechanism is provided on the lower side of the interior of the connecting frame. The present invention adjusts by manually controlling the sliding rod, so that the sliding rod can install different types of screws according to people's needs.

Description

Technical Field

[0001] The invention relates to a screwdriver, in particular to a screwdriver which can be used for installing a mechanical device. Background Art

[0002] In mechanical work, screwdrivers are often needed to remove and tighten screws. The functions of screwdrivers in the prior art are relatively simple and their practicality is low. If a variety of different types of screws are required to install a mechanical device, the general staff will need to carry screwdrivers with corresponding models, such as installing screws with "cross" screws, "I" screws, etc., and for installing nuts, they need to carry wrenches of different sizes, which greatly increases the weight of the objects that the power workers have to carry. In addition, the installation of screws and nuts is mostly manual operation, and the entire operation process is inefficient and not conducive to the installation or removal of large quantities of screws and nuts.

[0003] Therefore, the present invention aims to provide a screwdriver which is applicable to installing mechanical devices and has improved practicality and working efficiency to solve the above problems. Summary of the invention

[0004] In order to overcome the shortcomings of low practicality of screwdrivers in the prior art, and the installation of screws and nuts is mostly manual operation, resulting in low efficiency of the entire operation process, an object of the present invention is to provide a screwdriver with improved practicality and work efficiency that can be used for installing mechanical devices.

[0005] The technical solution is: a screwdriver suitable for installing a mechanical device, including a connecting frame, a first fixed ring, a first rotating ring, a rotating rod, an adjusting mechanism, a locking mechanism and an unlocking mechanism. A first fixed ring is provided on the lower side of the connecting frame, a first rotating ring is rotatably provided on the inner side of the first fixed ring, a rotating rod is provided in the middle of the bottom of the first rotating ring, an adjusting mechanism is provided on the lower side of the first rotating ring for installing different types of screws according to people's needs, a locking mechanism is provided between the first rotating ring and the adjusting mechanism, and an unlocking mechanism is provided on the locking mechanism.

[0006] As a further preferred scheme, the adjustment mechanism includes a first connecting rod, a sliding rod and a first spring. Four first connecting rods are evenly spaced at the bottom of the first rotating ring. The first connecting rods are slidably provided with sliding rods that contact the rotating rod. The sliding rods are connected to the first connecting rods on the same side with the first spring.

[0007] As a further preferred scheme, the locking mechanism includes a locking ring, a connecting plate, a rotating locking plate, a torsion spring and a baffle. A locking ring is provided on the outer side of the upper part of the four sliding rods, four connecting plates are evenly spaced at the bottom of the first rotating ring, and two rotating locking plates for limiting the locking ring are rotatably provided on the lower side of the connecting plate. Two torsion springs are connected between two adjacent rotating locking plates and the connecting plate on the same side, and two baffles are provided on the lower side of the connecting plate.

[0008] As a further preferred scheme, the unlocking mechanism includes a first sliding sleeve, a second connecting rod and a second spring. The first sliding sleeve is provided on the inner side of the upper part of the four connecting plates. The first sliding sleeve is slidably provided with a second connecting rod that contacts the two rotating locking plates on the same side. The second connecting rod is connected to the first sliding sleeve on the same side with a second spring.

[0009] As a further preferred scheme, it also includes a conversion mechanism, which includes a second fixed ring, a second rotating ring, a rotating sleeve, a stop rod, a nut driving ring and a third spring. A second fixed ring is provided at the upper inner part of the connecting frame, a second rotating ring is rotatably provided on the inner middle part of the second fixed ring, a rotating sleeve is provided on the top of the second rotating ring, a stop rod is provided on the rotating sleeve, and four nut driving rings for installing nuts of different sizes are slidably provided on the upper part of the stop rod. The nut driving rings are arranged from large to small from outside to inside, and the lower sides of the three outer nut driving rings are symmetrically connected to the stop rod with third springs, and a third spring is also connected between the lower side of the middle nut driving ring and the stop rod.

[0010] As a further preferred scheme, it also includes a driving mechanism, which includes a dual-axis motor, a third fixed ring, a third rotating ring, a third connecting rod, a first rotating driving ring, a fourth spring, a first rotating driving rod, a fourth connecting rod, a second rotating driving ring, a fifth spring and a second rotating driving rod. A dual-axis motor is provided on the upper middle side of the connecting frame, a switch is provided on the left side of the dual-axis motor, a third fixed ring is provided on the lower middle side of the connecting frame, a third rotating ring connected to the first rotating ring is rotatably provided in the middle of the third fixed ring, four third connecting rods are evenly spaced circumferentially provided on the inner side of the third fixed ring, a first rotating driving ring is slidably provided between the third connecting rods, and the bottom of the first rotating driving ring is connected to the third A fourth spring is connected between the connecting rods, and the fourth springs are evenly spaced and arranged circumferentially. A first rotating driving rod in contact with the third rotating ring is rotatably provided on the inner side of the first rotating driving ring, and the upper side of the first rotating driving rod is slidably connected to the output shaft on the lower side of the dual-axis motor. Four fourth connecting rods are evenly spaced and circumferentially provided on the bottom of the second fixed ring, and a second rotating driving ring is slidably provided between the fourth connecting rods. A fifth spring is connected between the second rotating driving ring and the fourth connecting rod, and the fifth spring is evenly spaced and arranged circumferentially. A second rotating driving rod in contact with the second rotating ring is rotatably provided on the inner side of the second rotating driving ring, and the lower side of the second rotating driving rod is slidably connected to the output shaft on the upper side of the dual-axis motor.

[0011] As a further preferred embodiment, a switch mechanism is also included, which includes a second sliding sleeve, a fifth connecting rod and a sixth spring. A second sliding sleeve located on the left side of the dual-axis motor is provided on the upper middle part of the connecting frame. A fifth connecting rod in contact with the switch of the dual-axis motor is slidably provided on the upper part of the second sliding sleeve, and a sixth spring is connected between the fifth connecting rod and the second sliding sleeve.

[0012] As a further preferred scheme, it also includes a linkage mechanism, which includes a sixth connecting rod, a sliding driving rod, a seventh spring, a button and an inclined driving block. The sixth connecting rod is provided on the left side of the middle part of the connecting frame, and a sliding driving rod is slidably provided on the sixth connecting rod. The seventh spring is symmetrically connected to the sixth connecting rod on both sides of the upper and lower sides. A button connected to the sliding driving rod is slidably provided on the left side of the middle part of the connecting frame, and an inclined driving block contacting the fifth connecting rod is provided in the middle of the sliding driving rod. The upper side of the sliding driving rod is in contact with the second rotating driving ring, and the lower side of the sliding driving rod is in contact with the first rotating driving ring.

[0013] The present invention has the following advantages: 1. The present invention adjusts the sliding rod by manually controlling the sliding rod, so that the sliding rod can install different types of screws according to people's needs;

[0014] 2. By providing a nut driving ring, the nut driving ring rotates to drive the nut to rotate, so that the nut is installed on the screw, and the nut driving ring can drive nuts of different models to rotate, so that the practicality of the screwdriver can be improved;

[0015] 3. After the dual-axis motor is started, the output shafts on the upper and lower sides of the dual-axis motor drive the components thereon to rotate through the first rotating driving rod and the second rotating driving rod, so that the screws and nuts are installed without people manually turning the screwdriver, thereby reducing the labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the first three-dimensional structure of the adjustment mechanism of the present invention.

[0019] Figure 4 It is a schematic diagram of a second three-dimensional structure of the adjustment mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of a first three-dimensional structure of the locking mechanism of the present invention.

[0021] Figure 6It is a schematic diagram of the second three-dimensional structure of the locking mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of a first three-dimensional structure of the unlocking mechanism of the present invention.

[0023] Figure 8 It is a schematic diagram of a second three-dimensional structure of the unlocking mechanism of the present invention.

[0024] Fig. 9 It is a schematic diagram of the first three-dimensional structure of the conversion mechanism of the present invention.

[0025] Fig.10 It is a schematic diagram of the second three-dimensional structure of the conversion mechanism of the present invention.

[0026] Fig.11 It is a schematic diagram of the first three-dimensional structure of the driving mechanism of the present invention.

[0027] Fig.12 It is a schematic diagram of the second three-dimensional structure of the driving mechanism of the present invention.

[0028] Fig.13 It is a schematic diagram of the third three-dimensional structure of the driving mechanism of the present invention.

[0029] Fig.14 It is a schematic diagram of a first three-dimensional structure of the switch mechanism of the present invention.

[0030] Fig.15 It is a schematic diagram of a second three-dimensional structure of the switch mechanism of the present invention.

[0031] Fig.16 It is a schematic diagram of the first three-dimensional structure of the linkage mechanism of the present invention.

[0032] Fig.17 It is a schematic diagram of the second three-dimensional structure of the linkage mechanism of the present invention.

[0033] Label names in the figure: 1-connecting frame, 2-first fixed ring, 3-first rotating ring, 4-rotating rod, 5-adjusting mechanism, 51-first connecting rod, 52-sliding rod, 53-first spring, 6-locking mechanism, 61-locking ring, 62-connecting plate, 63-rotating locking plate, 64-torsion spring, 65-baffle, 7-unlocking mechanism, 71-first sliding sleeve, 72-second connecting rod, 73-second spring, 8-conversion mechanism, 81-second fixed ring, 82-second rotating ring, 83-rotating sliding sleeve, 84-baffle, 85-nut driving ring, 86-third spring, 9-driving machine Structure, 91-dual-axis motor, 92-third fixed ring, 93-third rotating ring, 94-third connecting rod, 95-first rotating driving ring, 96-fourth spring, 97-first rotating driving rod, 98-fourth connecting rod, 99-second rotating driving ring, 910-fifth spring, 911-second rotating driving rod, 10-switch mechanism, 101-second sliding sleeve, 102-fifth connecting rod, 103-sixth spring, 11-linking mechanism, 1101-sixth connecting rod, 1102-sliding driving rod, 1103-seventh spring, 1104-button, 1105-inclined driving block. DETAILED DESCRIPTION

[0034] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0035] Example 1

[0036] A screwdriver suitable for installing mechanical devices, such as Figure 1-17 As shown, it includes a connecting frame 1, a first fixed ring 2, a first rotating ring 3, a rotating rod 4, an adjusting mechanism 5, a locking mechanism 6 and an unlocking mechanism 7. The first fixed ring 2 is provided on the lower side of the connecting frame 1, the first rotating ring 3 is rotatably provided on the inner side of the first fixed ring 2, a rotating rod 4 is provided in the middle of the bottom of the first rotating ring 3, an adjusting mechanism 5 is provided on the lower side of the first rotating ring 3, a locking mechanism 6 is provided between the first rotating ring 3 and the adjusting mechanism 5, and an unlocking mechanism 7 is provided on the locking mechanism 6.

[0037] The adjusting mechanism 5 includes a first connecting rod 51, a sliding rod 52 and a first spring 53. Four first connecting rods 51 are evenly spaced at the bottom of the first rotating ring 3. The sliding rods 52 are slidably provided on the first connecting rods 51. The sliding rods 52 are in contact with the rotating rod 4. The first spring 53 is connected between the sliding rods 52 and the first connecting rods 51 on the same side.

[0038] The locking mechanism 6 includes a locking ring 61, a connecting plate 62, a rotating locking plate 63, a torsion spring 64 and a baffle 65. A locking ring 61 is provided on the outer side of the upper part of the four sliding rods 52. Four connecting plates 62 are evenly spaced at the bottom of the first rotating ring 3. The connecting plate 62 is located on the outer side of the first connecting rod 51. Two rotating locking plates 63 are rotatably provided on the lower side of the connecting plate 62. Two torsion springs 64 are connected between the two adjacent rotating locking plates 63 and the connecting plate 62 on the same side. Two baffles 65 are provided on the lower side of the connecting plate 62.

[0039] The unlocking mechanism 7 includes a first sliding sleeve 71, a second connecting rod 72 and a second spring 73. The first sliding sleeve 71 is provided on the inner side of the upper part of the four connecting plates 62. The second connecting rod 72 is slidably provided on the first sliding sleeve 71. The second connecting rod 72 is in contact with the two rotating locking plates 63 on the same side. The second spring 73 is connected between the second connecting rod 72 and the first sliding sleeve 71 on the same side.

[0040] When using the screwdriver, people can first adjust the sliding rod 52 according to the type of screw. When adjusting, they only need to move the sliding rod 52 that is not needed temporarily upward and retract it. The first spring 53 is compressed, and the sliding rod 52 drives the locking ring 61 to move upward. When the locking ring 61 contacts the rotating locking plate 63, the rotating locking plate 63 is driven to rotate, and the torsion spring 64 is deformed. When the locking ring 61 passes over the rotating locking plate 63, the rotating locking plate 63 is driven to reset under the action of the torsion spring 64. At this time, people release the sliding rod 52, and the baffle 65 resists the rotating locking plate 63, so that the rotating locking plate 63 blocks the locking ring 61. Then people can insert the rotating rod 4 and the sliding rod 52 that has not been retracted into the groove at the top of the screw. The second connecting rod 72 is then released, and the second connecting rod 72 is driven to move upward and reset, and separate from the rotating locking plate 63, and then the rotating locking plate 63 is reset under the action of the torsion spring 64.

[0041] It also includes a conversion mechanism 8, which includes a second fixed ring 81, a second rotating ring 82, a rotating sleeve 83, a stopper 84, a nut driving ring 85 and a third spring 86. A second fixed ring 81 is provided on the upper inner part of the connecting frame 1, a second rotating ring 82 is rotatably provided on the inner middle part of the second fixed ring 81, a rotating sleeve 83 is provided on the top of the second rotating ring 82, a stopper 84 is provided on the rotating sleeve 83, and four nut driving rings 85 are slidably provided on the upper part of the stopper 84. The nut driving rings 85 are arranged from large to small from outside to inside, and the lower sides of the three outer nut driving rings 85 are symmetrically connected to the stopper 84 with third springs 86, and the lower side of the middle nut driving ring 85 is also connected to the stopper 84.

[0042] When people need to install the nut, they only need to insert the nut into the corresponding inner side of the nut driving ring 85, and then rotate the nut driving ring 85 to install the nut. When the nut is inserted into the nut driving ring 85, press the nut driving ring 85 downward, and the third spring 86 is compressed, so that the nut driving ring 85 is separated from the nut. People can then take out the nut, and then loosen the nut driving ring 85, and the nut driving ring 85 is reset under the action of the third spring 86.

[0043] The driving mechanism 9 includes a dual-axis motor 91, a third fixed ring 92, a third rotating ring 93, a third connecting rod 94, a first rotating driving ring 95, a fourth spring 96, a first rotating driving rod 97, a fourth connecting rod 98, a second rotating driving ring 99, a fifth spring 910 and a second rotating driving rod 911. The dual-axis motor 91 is provided on the upper middle side of the connecting frame 1, a switch is provided on the left side of the dual-axis motor 91, a third fixed ring 92 is provided on the lower middle side of the connecting frame 1, a third rotating ring 93 is rotatably provided in the middle of the third fixed ring 92, the bottom of the third rotating ring 93 is connected to the first rotating ring 3, four third connecting rods 94 are evenly spaced circumferentially on the inner side of the third fixed ring 92, a first rotating driving ring 95 is slidably provided between the third connecting rods 94, and a first rotating driving ring 95 and the third connecting rod 94 are connected between the bottom The fourth spring 96 is evenly spaced and arranged circumferentially. A first rotating driving rod 97 is rotatably provided on the inner side of the first rotating driving ring 95. The lower side of the first rotating driving rod 97 contacts the third rotating ring 93. The upper side of the first rotating driving rod 97 is slidably connected to the output shaft on the lower side of the dual-axis motor 91. Four fourth connecting rods 98 are evenly spaced and circumferentially provided on the bottom of the second fixed ring 81. A second rotating driving ring 99 is slidably provided between the fourth connecting rods 98. A fifth spring 910 is connected between the second rotating driving ring 99 and the fourth connecting rod 98. The fifth spring 910 is evenly spaced and arranged circumferentially. A second rotating driving rod 911 is rotatably provided on the inner side of the second rotating driving ring 99. The lower side of the second rotating driving rod 911 is slidably connected to the output shaft on the upper side of the dual-axis motor 91, and the upper side of the second rotating driving rod 911 contacts the second rotating ring 82.

[0044] It also includes a switch mechanism 10, which includes a second sleeve 101, a fifth connecting rod 102 and a sixth spring 103. A second sleeve 101 is provided on the upper middle side of the connecting frame 1, and the second sleeve 101 is located on the left side of the dual-axis motor 91. A fifth connecting rod 102 is slidably provided on the upper part of the second sleeve 101, and a sixth spring 103 is connected between the fifth connecting rod 102 and the second sleeve 101. The fifth connecting rod 102 is in contact with the switch of the dual-axis motor 91.

[0045] It also includes a linkage mechanism 11, which includes a sixth connecting rod 1101, a sliding driving rod 1102, a seventh spring 1103, a button 1104 and an inclined driving block 1105. A sixth connecting rod 1101 is provided on the left middle part of the connecting frame 1, a sliding driving rod 1102 is slidably provided on the sixth connecting rod 1101, and the seventh spring 1103 is symmetrically connected to the sixth connecting rod 1101 on both upper and lower sides. A button 1104 is slidably provided on the left middle part of the connecting frame 1, and the right side of the button 1104 is connected to the sliding driving rod 1102. An inclined driving block 1105 is provided in the middle of the sliding driving rod 1102, and the inclined driving block 1105 contacts the fifth connecting rod 102, the upper side of the sliding driving rod 1102 contacts the second rotating driving ring 99, and the lower side of the sliding driving rod 1102 contacts the first rotating driving ring 95.

[0046] In the initial state, the sixth spring 103 is stretched. When installing the screw, insert the rotating rod 4 and the sliding rod 52 that has not been retracted into the groove at the top of the screw, and then push the button 1104 downward. The button 1104 drives the inclined driving block 1105 and the sliding driving rod 1102 to move downward, and the seventh spring 1103 on the upper side is compressed, and the seventh spring 1103 on the lower side is stretched, so that the sliding driving rod 1102 drives the first rotating driving ring 95 to move downward, and the fourth spring 96 is compressed, and the first rotating driving ring 95 drives the first rotating driving rod 97 to move downward, so that the first rotating driving rod 97 is stuck in the third rotating ring 93, and at the same time, the inclined driving block 1105 moves downward and separates from the fifth connecting rod 102, and then drives the fifth connecting rod 102 to reset and separate from the switch on the dual-axis motor 91 under the action of the sixth spring 103 resetting, and the dual-axis motor 91 starts. The output shaft at the lower side of the dual-axis motor 91 drives the first rotating driving rod 97 to rotate, and then drives the third rotating ring 93 to rotate. The third rotating ring 93 drives the first rotating ring 3, the rotating rod 4, the first connecting rod 51 and the sliding rod 52 to rotate, and then the screws are installed. After the installation is completed, the button 1104 is released, and the sliding driving rod 1102, the inclined driving block 1105 and the button 1104 are driven to move upward and reset under the action of the seventh spring 1103 to reset, so that the inclined driving block 1105 squeezes the fifth connecting rod 102 to the right, the sixth spring 103 is stretched, and the fifth connecting rod 102 contacts with the switch on the dual-axis motor 91, thereby turning off the dual-axis motor 91. At the same time, the sliding driving rod 1102 is reset and separated from the first rotating driving ring 95, and then the first rotating driving ring 95 and the first rotating driving rod 97 are reset under the action of the fourth spring 96 to reset;When installing the nut, after the nut is stuck into the inner side of the corresponding nut driving ring 85, the button 1104 is pushed upward, and the button 1104 drives the inclined driving block 1105 and the sliding driving rod 1102 to move upward, the seventh spring 1103 on the upper side is stretched, and the seventh spring 1103 on the lower side is compressed, so that the sliding driving rod 1102 drives the second rotating driving ring 99 to move upward, the fifth spring 910 is compressed, and the second rotating driving ring 99 drives the second rotating driving rod 911 to move upward, so that the second rotating driving rod 911 is stuck in the second rotating ring 82. At the same time, the inclined driving block 1105 moves upward and separates from the fifth connecting rod 102, and then under the action of the sixth spring 103 resetting, the fifth connecting rod 102 is reset and separated from the switch on the dual-axis motor 91, and the dual-axis motor 91 is started, and the output shaft on the upper side of the dual-axis motor 91 drives the second rotating driving rod 911 to rotate , and then drive the second rotating ring 82 to rotate, and the second rotating ring 82 drives the rotating sleeve 83, the stopper 84 and the nut driving ring 85 to rotate, and then the nut is installed. After the installation is completed, the button 1104 is released, and the sliding driving rod 1102, the inclined driving block 1105 and the button 1104 are driven to move downward and reset under the action of the seventh spring 1103 to reset, so that the inclined driving block 1105 squeezes the fifth connecting rod 102 to the right, and the sixth spring 103 is stretched, and the fifth connecting rod 102 contacts the switch on the dual-axis motor 91, and then the dual-axis motor 91 is turned off. At the same time, the sliding driving rod 1102 is separated from the second rotating driving ring 99, and then the second rotating driving ring 99 and the second rotating driving rod 911 are reset under the action of the fifth spring 910 to reset, so that people do not need to manually turn the screwdriver to install the screws and nuts, thereby reducing the labor intensity. ;

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screwdriver suitable for installing a mechanical device, characterized in that: The invention comprises a connecting frame (1), a first fixing ring (2), a first rotating ring (3), a rotating rod (4), an adjusting mechanism (5), a locking mechanism (6) and an unlocking mechanism (7); the first fixing ring (2) is provided on the lower side of the connecting frame (1); the first rotating ring (3) is rotatably provided on the inner side of the first fixing ring (2); a rotating rod (4) is provided in the middle of the bottom of the first rotating ring (3); the adjusting mechanism (5) is provided on the lower side of the first rotating ring (3) for installing different types of screws according to people's needs; a locking mechanism (6) is provided between the first rotating ring (3) and the adjusting mechanism (5); and an unlocking mechanism (7) is provided on the locking mechanism (6); The adjustment mechanism (5) comprises a first connecting rod (51), a sliding rod (52) and a first spring (53); four first connecting rods (51) are evenly spaced at the bottom of the first rotating ring (3); each of the first connecting rods (51) is slidably provided with a sliding rod (52) in contact with the rotating rod (4); each of the sliding rods (52) is connected to the first connecting rod (51) on the same side with a first spring (53); The locking mechanism (6) comprises a locking ring (61), a connecting plate (62), a rotating locking plate (63), a torsion spring (64) and a baffle (65). The upper outer sides of the four sliding rods (52) are each provided with a locking ring (61). Four connecting plates (62) are evenly spaced at the bottom of the first rotating ring (3). Two rotating locking plates (63) for limiting the locking ring (61) are rotatably provided on the lower side of the connecting plates (62). Two torsion springs (64) are connected between two adjacent rotating locking plates (63) and the connecting plates (62) on the same side. Two baffles (65) are each provided on the lower side of the connecting plates (62).

2. A screwdriver suitable for installing a mechanical device as claimed in claim 1, characterized in that: The unlocking mechanism (7) comprises a first sliding sleeve (71), a second connecting rod (72) and a second spring (73); the first sliding sleeve (71) is provided on the inner side of the upper part of each of the four connecting plates (62); the first sliding sleeve (71) is provided with a second connecting rod (72) in a sliding manner and in contact with two rotating locking plates (63) on the same side; the second connecting rod (72) is connected to the first sliding sleeve (71) on the same side with a second spring (73).

3. A screwdriver suitable for installing a mechanical device as claimed in claim 2, characterized in that: The invention also comprises a conversion mechanism (8), the conversion mechanism (8) comprising a second fixed ring (81), a second rotating ring (82), a rotating sleeve (83), a stopper (84), a nut driving ring (85) and a third spring (86). The second fixed ring (81) is provided at the upper inner part of the connection frame (1), the second rotating ring (82) is rotatably provided at the inner middle part of the second fixed ring (81), the rotating sleeve (83) is provided at the top of the second rotating ring (82), the stopper (84) is provided on the rotating sleeve (83), four nut driving rings (85) for mounting nuts of different sizes are slidably provided at the upper part of the stopper (84), the nut driving rings (85) are arranged from outside to inside from large to small, the lower sides of the three outer nut driving rings (85) are symmetrically connected to the stopper (84) with the third spring (86), and the lower side of the middle nut driving ring (85) is also connected to the stopper (84) with the third spring (86).

4. A screwdriver suitable for installing a mechanical device as claimed in claim 3, characterized in that: The invention also comprises a driving mechanism (9), wherein the driving mechanism (9) comprises a dual-axis motor (91), a third fixed ring (92), a third rotating ring (93), a third connecting rod (94), a first rotating driving ring (95), a fourth spring (96), a first rotating driving rod (97), a fourth connecting rod (98), a second rotating driving ring (99), a fifth spring (910) and a second rotating driving rod (911); a dual-axis motor (91) is arranged on the upper middle side of the connecting frame (1); a switch is arranged on the left side of the dual-axis motor (91); a third fixed ring (92) is arranged on the lower middle side of the connecting frame (1); a third rotating ring (93) connected to the first rotating ring (3) is rotatably arranged in the middle of the third fixed ring (92); four third connecting rods (94) are evenly spaced circumferentially arranged on the inner side of the third fixed ring (92); a first rotating driving ring (95) is slidably arranged between the third connecting rods (94); a bottom of the first rotating driving ring (95) is connected to the third rotating ring (3) A fourth spring (96) is connected between the three connecting rods (94), and the fourth springs (96) are arranged circumferentially at uniform intervals. A first rotating driving rod (97) in contact with the third rotating ring (93) is rotatably provided on the inner side of the first rotating driving ring (95), and the upper side of the first rotating driving rod (97) is slidably connected to the output shaft of the lower side of the dual-axis motor (91). Four fourth connecting rods (98) are circumferentially arranged at uniform intervals on the bottom of the second fixed ring (81), and a second rotating driving ring (99) is slidably provided between the fourth connecting rods (98). A fifth spring (910) is connected between the second rotating driving ring (99) and the fourth connecting rod (98), and the fifth spring (910) is arranged circumferentially at uniform intervals. A second rotating driving rod (911) in contact with the second rotating ring (82) is rotatably provided on the inner side of the second rotating driving ring (99), and the lower side of the second rotating driving rod (911) is slidably connected to the output shaft of the upper side of the dual-axis motor (91).

5. A screwdriver suitable for installing a mechanical device as claimed in claim 4, characterized in that: The invention also comprises a switch mechanism (10), the switch mechanism (10) comprising a second sliding sleeve (101), a fifth connecting rod (102) and a sixth spring (103); a second sliding sleeve (101) located on the left side of the dual-axis motor (91) is provided on the upper middle side of the connection frame (1); a fifth connecting rod (102) contacting the switch of the dual-axis motor (91) is slidably provided on the upper part of the second sliding sleeve (101); and a sixth spring (103) is connected between the fifth connecting rod (102) and the second sliding sleeve (101).

6. A screwdriver suitable for installing a mechanical device as claimed in claim 5, characterized in that: The invention also comprises a linkage mechanism (11), which comprises a sixth connecting rod (1101), a sliding driving rod (1102), a seventh spring (1103), a button (1104) and an inclined driving block (1105). The sixth connecting rod (1101) is provided on the left side of the middle part of the connecting frame (1). The sliding driving rod (1102) is slidably provided on the sixth connecting rod (1101). The seventh spring (1103) is symmetrically connected to the sixth connecting rod (1101) on both upper and lower sides. A button (1104) connected to the sliding driving rod (1102) is slidably provided on the left side of the middle part of the connecting frame (1). The inclined driving block (1105) in contact with the fifth connecting rod (102) is provided in the middle part of the sliding driving rod (1102). The upper side of the sliding driving rod (1102) is in contact with the second rotating driving ring (99), and the lower side of the sliding driving rod (1102) is in contact with the first rotating driving ring (95).

Images