Nut mounting tool

Abstract

The utility model provides a nut mounting tool, which comprises a sleeve, a nut, a nut, a connecting rod, a connecting rod, a connecting rod and a nut mounting rod, and is characterized in that the sleeve is provided with a through hole along the axial direction; a limiting structure is arranged in the through hole, the limiting structure extends inwards in the radial direction of the through hole and protrudes out of the inner wall face of the through hole, and if the nut is matched with the through hole, the end face of the nut can abut against the lower end face of the limiting structure. According to the nut installation tool, the limiting structure is arranged in the through hole of the sleeve, if the nut does not make contact with the fastening face and is in the suspended state, the sleeve is arranged on the nut in a sleeved mode, the lower end face of the limiting structure abuts against the upper end face of the nut, and therefore the sleeve is prevented from sliding off from the nut; an operator rotates the sleeve to drive the nut to be screwed in or out of the nut. In addition, an operator does not need to apply an acting force in the opposite direction of the gravity direction of the sleeve, so that the burden of the operator can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical installation tools, and particularly relates to a nut installation tool. Background Art

[0002] Thread fastening is a common fastening method in the field of mechanical installation. During the installation process of various equipment, although thread fastening is not very difficult, it is an important link affecting work efficiency. Especially in the field of wind power installation, a large number of large bolts need to be installed at high altitudes. The convenience of operation is directly related to the work intensity of personnel and the high-altitude operation time, and thus affects construction safety.

[0003] In the prior art, a sleeve is used to screw a nut onto or off a screw rod. The sleeve is a through-hole type sleeve, and the through-hole is matched with the outer dimension of the nut. If the nut is in a suspended state and the sleeve is sleeved on the nut, the sleeve is likely to slip off the nut due to its own gravity. Summary of the Utility Model

[0004] The utility model provides a nut installation tool to solve the technical problem in the prior art that when the sleeve is a through-hole type sleeve and the nut is in a suspended state, the sleeve is sleeved on the nut and is likely to slip off the nut due to its own gravity.

[0005] The utility model provides a nut installation tool, including: a sleeve having a through-hole along the axial direction, and the through-hole is used to cooperate with the nut to be disassembled and assembled; a limiting structure is arranged in the through-hole, the limiting structure extends inwards along the radial direction of the through-hole and protrudes from the inner wall surface of the through-hole. If the nut is fitted in the through-hole, the end surface of the nut can abut against the lower end surface of the limiting structure.

[0006] The nut installation tool provided by the utility model, by arranging a limiting structure in the through-hole of the sleeve, when the nut is in a suspended state without contacting the fastening surface and the sleeve is sleeved on the nut, the lower end surface of the limiting structure abuts against the upper end surface of the nut, thereby preventing the sleeve from slipping off the nut. The operator rotates the sleeve to drive the nut to be screwed onto or off the nut; in addition, the operator does not need to apply a force in the opposite direction of the gravity direction of the sleeve, thus reducing the burden on the operator.

[0007] Optionally, the limiting structure includes limiting blocks, and there are at least 2 limiting blocks which are arranged at intervals along the circumferential direction on the inner wall surface of the through-hole; thus arranged, the lower surface of the limiting block can abut against the upper end surface of the nut, preventing the sleeve from slipping off the nut.

[0008] Optionally, the limiting structure is a limiting ring protruding from the inner wall surface of the through-hole. Thus arranged, the lower surface of the limiting ring can abut against the upper end surface of the nut, preventing the sleeve from slipping off the nut.

[0009] Optionally, the sleeve includes a sleeve body, an upper limiting portion, and a lower limiting portion. The upper limiting portion and the lower limiting portion are respectively provided at two ends of the sleeve body along its axial direction. The upper limiting portion and the lower limiting portion extend radially outward along the sleeve body and protrude from the outer wall surface of the sleeve body. A rope is connected to the sleeve, and the rope can be wound around the outer wall surface of the sleeve body and accommodated in the area between the upper limiting portion and the lower limiting portion. For a nut installation tool provided by the present utility model, on the one hand, compared with the prior art in which a sleeve is used to disassemble and assemble a nut by means of a lever principle, in the embodiment of the present utility model, by connecting a rope to the sleeve, driving the rope to drive the sleeve, and the sleeve to drive the nut to rotate, the disassembly and assembly of the nut are realized. Since the rope is flexible and has a small occupied space size, it can avoid spatial interference in disassembling and assembling the nut. On the other hand, compared with the prior art in which a nut is manually rotated to screw the nut into or out of a screw rod, in the embodiment of the present utility model, by connecting a rope to the sleeve, driving the rope to drive the sleeve, and the sleeve to drive the nut to rotate, the disassembly and assembly of the nut are realized, without the need to continuously manually rotate the nut, reducing the labor intensity of the operator and improving the disassembly and assembly efficiency of the nut.

[0010] Optionally, one end of the rope is detachably connected to the upper limiting portion. With such a setting, when a force is applied to the other end of the rope, the upper limiting portion receives a downward force, which is beneficial to positioning the sleeve on the nut.

[0011] Optionally, the upper limiting portion is provided with a marking portion for indicating the winding direction of the rope. By providing such a marking portion to indicate the winding direction of the rope, it can prevent the operator from making mistakes in winding and improve the disassembly and assembly efficiency of the nut.

[0012] Optionally, the lower limiting portion or the upper limiting portion is provided with a clamping portion, and the other end of the rope is detachably connected to the clamping portion. With such a setting, it is convenient to fix the wound rope and prevent the rope from spreading out on the sleeve.

[0013] Optionally, one end of the rope has a limiting end; the upper limiting portion is provided with an opening, the rope can pass through the opening, and the limiting end can be clamped on the upper end surface of the opening. With such a setting, one end of the rope is detachably connected to the opening, and ropes of different lengths can be selected based on different working conditions, thereby improving the practicability of the nut installation tool; in addition, the assembly method of clamping the limiting end on the opening is simple, with low manufacturing cost and not easily damaged, thus extending the service life of the nut installation tool.

[0014] Optionally, the opening is a cylindrical hole through which the rope can pass, and the limiting end can be stuck on the upper end face of the cylindrical hole; or, the opening is a strip-shaped hole through which the rope can pass, and the limiting end can be stuck on the upper end face of the strip-shaped hole.

[0015] Optionally, the inner wall surface in the middle of the strip-shaped hole has a groove, the cross-sectional dimension of the groove is larger than the dimension of the limiting end, and the width of other positions of the strip-shaped hole away from the groove is smaller than the dimension of the limiting end. With such a setting, the limiting end can be pre-installed at one end of the rope before the rope is installed in the strip-shaped hole. The limiting end can pass through the groove from bottom to top, and based on the winding direction of the rope, the limiting end slides in the strip-shaped hole and is stuck at the end of the strip-shaped hole away from the groove, thereby winding the rope around the sleeve body; in addition, relative rotation between the rope and the sleeve during use is avoided.

[0016] Optionally, the limiting end is a knot for preventing the rope from detaching from the opening; or, the limiting end is a sleeve for preventing the rope from detaching from the opening.

[0017] Optionally, the through hole includes at least 2 equiangular hexagonal structures, and any two adjacent equiangular hexagonal structures are staggered, and the circumscribed circles of the equiangular hexagonal structures have different diameters. With such a setting, at least 2 different diameters of hexagonal nuts can be adapted, thereby improving the practicality of the nut installation tool.

[0018] Optionally, the through hole includes 2 equiangular hexagonal structures, and the 2 equiangular hexagonal structures form a dodecagonal structure.

[0019] Optionally, the centers of the multiple equiangular hexagonal structures coincide.

[0020] Optionally, there is a gap between the inner wall surface of the equiangular hexagonal structure and the outer wall surface of the matching nut. With such a setting, during the rotation of the sleeve and the nut driven by the rope, the generated torque can offset the thread friction torque between the nut and the screw, and the operation process is easy and fast, thereby reducing the burden on the operator. Description of the Drawings

[0021] Figure 1 is a top view of a nut installation tool provided by an embodiment of the present invention;

[0022] Figure 2 is Figure 1 the schematic cross-sectional structure view of A-A in

[0023] Figure 3 is a three-dimensional structure schematic view of a sleeve in a nut installation tool provided by an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the structure of the sleeve and the nut in a nut installation tool provided in an embodiment of the utility model Figure 1 ;

[0025] Figure 5 A schematic diagram of the assembly structure of a nut installation tool provided by an embodiment of the utility model;

[0026] Figure 6 A schematic diagram of the structure of the sleeve and the nut in a nut installation tool provided in an embodiment of the utility model Figure 2 ;

[0027] FIG. 7( a ) is a bottom view of a nut installation tool in use provided by an embodiment of the utility model Figure 1 ;

[0028] FIG. 7( b ) is a bottom view of a nut installation tool in use provided by an embodiment of the utility model Figure 2 .

[0029] Description of reference numerals:

[0030] 10. Sleeve; 101. Through hole; 102. Limiting structure; 103. Hexagonal structure; 110. Sleeve body; 120. Upper limit portion; 121. Marking portion; 123. Strip hole; 124. Groove; 130. Lower limit portion; 20. Rope; 201. Limiting end; 30. Nut. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and easy to understand, the following is a brief description of the present invention in conjunction with the attached Figure 1 —7 The specific embodiments of the present invention are described in detail.

[0032] In the present invention, the terms "connection" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated structure.

[0033] In the present invention, terms such as "inside", "outside", "upper" and "lower" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0034] The utility model embodiment provides a nut installation tool, see attached Figure 1, the nut installation tool includes a sleeve 10 which has a through hole 101 in the axial direction. The through hole 101 is used to cooperate with the nut 30 to be disassembled and assembled. A limiting structure 102 is arranged in the through hole 101. The limiting structure 102 extends inwards along the radial direction of the through hole 101 and protrudes from the inner wall surface of the through hole 101. If the nut 30 is fitted in the through hole 101, the end face of the nut 30 can abut against the lower end face of the limiting structure 102.

[0035] A nut installation tool provided by an embodiment of the present utility model, by arranging a limiting structure 102 in the through hole 101 of the sleeve 10, when the nut 30 is not in contact with the fastening surface and the nut 30 is in a suspended state, the sleeve 10 is sleeved on the nut 30, and the lower end face of the limiting structure 102 abuts against the upper end face of the nut 30, so as to prevent the sleeve 10 from slipping off the nut 30. The operator drives the nut 30 to rotate into or out of the nut 30 by rotating the sleeve 10. In addition, the operator does not need to apply a force in the opposite direction of the gravity direction of the sleeve 10, thus reducing the burden on the operator.

[0036] In the embodiment of the present utility model, the type of the limiting structure 102 is not limited, and specifically as follows:

[0037] In one embodiment, the limiting structure 102 includes limiting blocks. There are at least 2 limiting blocks which are arranged at intervals along the circumferential direction on the inner wall surface of the through hole 101. With this arrangement, the lower surface of the limiting block can abut against the upper end face of the nut 30 to prevent the sleeve 10 from slipping off the nut 30.

[0038] In another embodiment, the limiting structure 102 is a limiting ring which protrudes from the inner wall surface of the through hole 101. With this arrangement, the lower surface of the limiting ring can abut against the upper end face of the nut 30 to prevent the sleeve 10 from slipping off the nut 30.

[0039] See attached Figure 2 , Figure 3 and Figure 5 , in the embodiment of the present utility model, the sleeve 10 includes a sleeve body 110, an upper limiting part 120 and a lower limiting part 130. The upper limiting part 120 and the lower limiting part 130 are respectively arranged at both ends of the sleeve body 110 along its axial direction. The upper limiting part 120 and the lower limiting part 130 extend outwards along the radial direction of the sleeve body 110 and protrude from the outer wall surface of the sleeve body 110. A rope 20 is connected to the sleeve 10. The rope 20 can be wound around the outer wall surface of the sleeve body 110 and be accommodated in the area between the upper limiting part 120 and the lower limiting part 130.

[0040] Working principle of the embodiment of the present utility model: The sleeve 10 is matched with the nut 30. According to the requirement of screwing the nut 30 into or out of the screw rod, the rope 20 is wound around the sleeve body 110 in the corresponding winding direction; then, the other end of the rope 20 is continuously pulled, the rope 20 drives the sleeve 10 to rotate, and the sleeve 10 drives the nut 30 to rotate, so as to screw the nut 30 into or out of the screw rod.

[0041] A nut installation tool provided by the embodiment of the present utility model. On the one hand, compared with the prior art in which the sleeve 10 for disassembling and assembling the nut 30 by means of the lever principle, in the embodiment of the present utility model, by connecting the rope 20 to the sleeve 10 and driving the rope 20 to drive the sleeve 10, and the sleeve 10 drives the nut 30 to rotate, the disassembly and assembly of the nut 30 are realized. Since the rope 20 is flexible and has a small occupied space size, the space interference during the disassembly and assembly of the nut 30 can be avoided; on the other hand, compared with the prior art in which the nut 30 is manually rotated to screw the nut 30 into or out of the screw rod, in the embodiment of the present utility model, by connecting the rope 20 to the sleeve 10 and driving the rope 20 to drive the sleeve 10, and the sleeve 10 drives the nut 30 to rotate, the disassembly and assembly of the nut 30 are realized, and it is not necessary to continuously manually rotate the nut 30, which reduces the labor intensity of the operator and improves the disassembly and assembly efficiency of the nut 30.

[0042] In the embodiment of the present utility model, one end of the rope 20 is detachably connected to the upper limit portion 120. With such a setting, when a force is applied to the other end of the rope 20, the upper limit portion 120 receives a downward force, which is beneficial to positioning the sleeve 10 on the nut 30.

[0043] See the appendix Figure 3 In the embodiment of the present utility model, the upper limit portion 120 is provided with a marking portion 121, and the marking portion 121 is used to indicate the winding direction of the rope 20. With such a setting of the marking portion 121 to indicate the winding direction of the rope 20, the operator is prevented from making a wrong winding and the disassembly and assembly efficiency of the nut 30 is improved. Specifically, in one implementation manner, the marking portion 121 can be a letter marking. For example, IN represents the winding direction of the rope 20 when the nut 30 is screwed into the screw rod; OUT represents the winding direction of the rope 20 when the nut 30 is screwed out of the screw rod. In another implementation manner, the marking portion 121 can be an arrow marking, including a clockwise arrow and a counterclockwise arrow. Among them, the clockwise arrow represents the winding direction of the rope 20 when the nut 30 is screwed into the screw rod; the counterclockwise arrow represents the winding direction of the rope 20 when the nut 30 is screwed out of the screw rod.

[0044] In the embodiment of the present utility model, the lower limit portion 130 or the upper limit portion 120 is provided with a clamping portion (not shown in the figure), and the other end of the rope 20 is detachably connected to the clamping portion; wherein, the other end of the rope 20 is the other end of the rope 20. With such a setting, the fixing of the wound rope 20 can be facilitated, and the rope 20 is prevented from spreading out on the sleeve 10.

[0045] See the appendix Figure 5 In the embodiment of the present utility model, one end of the rope 20 has a limit end 201; the upper limit portion 120 is provided with an opening 122, one end of the rope 20 can pass through the opening 122, and the limit end 201 can be stuck on the upper end surface of the opening 122. It should be noted that the length of the rope 20 can be selected based on the displacement of the nut 30 being screwed in or out. With this setting, one end of the rope 20 is detachably connected to the opening 122, and ropes 20 of different lengths can be selected based on different working conditions, thereby improving the practicability of the nut installation tool; in addition, the assembly method of the limit end 201 being stuck in the opening 122 is simple, the manufacturing cost is low, and it is not easily damaged, thus extending the service life of the nut installation tool.

[0046] In the embodiment of the present utility model, the shape of the opening 122 is not limited, and specifically as follows:

[0047] In one embodiment, the opening 122 is a cylindrical hole, the rope 20 can pass through the cylindrical hole, and the limit end 201 can be stuck on the upper end surface of the cylindrical hole.

[0048] See the appendix Figure 3 and Figure 5 In another embodiment, the opening 122 is a strip-shaped hole 123, the rope 20 can pass through the strip-shaped hole 123, and the limit end 201 can be stuck on the upper end surface of the strip-shaped hole 123.

[0049] Specifically, see the appendix Figure 3 The inner wall surface of the middle part of the strip-shaped hole 123 has a groove 124, the cross-sectional dimension of the groove 124 is larger than the dimension of the limit end 201, and the width of other positions of the strip-shaped hole 123 away from the groove 124 is smaller than the dimension of the limit end 201. With this setting, the limit end 201 can be pre-installed at one end of the rope 20 before the rope 20 is installed in the strip-shaped hole 123, the limit end 201 can pass through the groove 124 from bottom to top, and based on the winding direction of the rope 20, the limit end 201 slides in the strip-shaped hole 123 and is stuck at the end of the strip-shaped hole 123 away from the groove 124, and then the rope 20 is wound around the sleeve body 110; in addition, relative rotation between the rope 20 and the sleeve 10 during use is avoided.

[0050] In the embodiment of the present utility model, the length extension direction of the strip-shaped hole 123 is along the circumferential direction of the upper limit portion 120. If the nut 30 needs to be screwed into the screw rod, the rope 20 is wound around the sleeve body 110 in the clockwise direction, and one end of the rope 20 is stuck at the first end of the strip-shaped hole 123; if the nut 30 needs to be screwed out of the screw rod, the rope 20 is wound around the sleeve body 110 in the counterclockwise direction, and one end of the rope 20 is stuck at the second end of the strip-shaped hole 123.

[0051] In the embodiments of the present utility model, the type of the limiting end 201 is not limited, and specifically as follows:

[0052] In one embodiment, the limiting end 201 is a knot, and the knot is used to prevent the rope 20 from disengaging from the through hole 122.

[0053] In another embodiment, the limiting end 201 is a sleeve, and the sleeve is used to prevent the rope 20 from disengaging from the through hole 122.

[0054] See the appendix Figure 7(a) and 7(b) , in the embodiments of the present utility model, the through hole 101 includes at least 2 equiangular hexagonal structures 103, and any two adjacent equiangular hexagonal structures 103 are staggered, and the circumcircles of the equiangular hexagonal structures 103 have different diameters. With such a setting, it is possible to adapt to at least 2 types of hexagonal nuts 30 with different diameters, thereby improving the practicality of the nut installation tool.

[0055] In the embodiments of the present utility model, the through hole 101 includes 2 equiangular hexagonal structures 103, and the 2 equiangular hexagonal structures 103 form a dodecagonal structure. With such a setting, it is possible to be applicable to 2 types of hexagonal nuts 30 with different diameters.

[0056] In the embodiments of the present utility model, the centers of the multiple equiangular hexagonal structures 103 coincide.

[0057] In the embodiments of the present utility model, there is a gap between the inner wall surface of the equiangular hexagonal structure 103 and the outer wall surface of the matching nut 30. With such a setting, during the rotation of the rope 20 driving the sleeve 10 and the nut 30, the generated torque can offset the thread friction torque between the nut 30 and the screw rod, and the operation process is easy and fast, thereby reducing the burden on the operator.

[0058] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.

Claims

1. A nut installation tool, characterized in that: include: A sleeve (10) has a through hole (101) along the axial direction, and the through hole (101) is used to cooperate with a nut (30) to be disassembled; a limiting structure (102) is provided in the through hole (101), and the limiting structure (102) extends inwardly along the radial direction of the through hole (101) and protrudes from the inner wall surface of the through hole (101); if the nut (30) is matched with the through hole (101), the end face of the nut (30) can abut against the lower end face of the limiting structure (102).

2. The nut installation tool according to claim 1, characterized in that: The limiting structure (102) comprises a limiting block, which has at least two limiting blocks and is arranged on the inner wall surface of the through hole (101) at intervals along the circumferential direction; Alternatively, the limiting structure (102) is a limiting circular ring, and the limiting circular ring is protruding from the inner wall surface of the through hole (101).

3. The nut installation tool according to claim 1 or 2, characterized in that: The sleeve (10) comprises a sleeve body (110), an upper limit portion (120) and a lower limit portion (130), wherein the upper limit portion (120) and the lower limit portion (130) are respectively arranged at two ends of the sleeve body (110) along the axial direction thereof, and the upper limit portion (120) and the lower limit portion (130) extend outwardly along the radial direction of the sleeve body (110) and protrude from the outer wall surface of the sleeve body (110); The sleeve (10) is connected to a rope (20), and the rope (20) can be wound around the outer wall surface of the sleeve body (110) and accommodated in the area between the upper limit portion (120) and the lower limit portion (130).

4. The nut installation tool according to claim 3, characterized in that: One end of the rope (20) is detachably connected to the upper limit portion (120); And / or, the upper limit portion (120) is provided with a marking portion (121), and the marking portion (121) is used to indicate the winding direction of the rope (20); And / or, the lower limit portion (130) or the upper limit portion (120) is provided with a clamping portion, and the other end of the rope (20) is detachably connected to the clamping portion.

5. The nut installation tool according to claim 4, characterized in that: One end of the rope (20) has a limiting end (201); The upper limit portion (120) is provided with an opening (122), the rope (20) can pass through the opening (122), and the limit end (201) can be clamped on the upper end surface of the opening (122).

6. The nut installation tool according to claim 5, characterized in that: The opening (122) is a cylindrical hole, the rope (20) can pass through the cylindrical hole, and the limiting end (201) can be stuck on the upper end surface of the cylindrical hole; Alternatively, the opening (122) is a strip-shaped hole (123), the rope (20) can pass through the strip-shaped hole (123), and the limiting end (201) can be clamped on the upper end surface of the strip-shaped hole (123).

7. The nut installation tool according to claim 6, characterized in that: The inner wall surface of the middle part of the strip-shaped hole (123) has a groove (124), the cross-sectional dimension of the groove (124) is larger than the dimension of the limiting end head (201), and the width of other positions of the strip-shaped hole (123) away from the groove (124) is smaller than the dimension of the limiting end head (201).

8. The nut installation tool according to claim 5, characterized in that: The limiting end (201) is a knot, and the knot is used to prevent the rope (20) from escaping from the opening (122); or, the limiting end (201) is a sleeve, and the sleeve is used to prevent the rope (20) from escaping from the opening (122).

9. The nut installation tool according to claim 1 or 2, characterized in that: The through hole (101) comprises at least two equiangular hexagonal structures (103), any two adjacent equiangular hexagonal structures (103) are arranged in a staggered manner, and the circumscribed circles of the equiangular hexagonal structures (103) have different diameters.

10. The nut installation tool according to claim 9, characterized in that: The through hole (101) includes two equiangular hexagonal structures (103), and the two equiangular hexagonal structures (103) form a dodecagonal structure; and / or, the center points of a plurality of the equiangular hexagonal structures (103) coincide with each other; And / or, there is a gap between the inner wall surface of the equiangular hexagonal structure (103) and the outer wall surface of the matching nut (30).

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